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Treeview control * * Copyright 1998 Eric Kohl <ekohl@abo.rhein-zeitung.de> * Copyright 1998,1999 Alex Priem <alexp@sci.kun.nl> * Copyright 1999 Sylvain St-Germain * Copyright 2002 CodeWeavers, Aric Stewart * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA * * NOTES * * Note that TREEVIEW_INFO * and HTREEITEM are the same thing. * * Note2: If item's text == LPSTR_TEXTCALLBACKA we allocate buffer * of size TEXT_CALLBACK_SIZE in DoSetItem. * We use callbackMask to keep track of fields to be updated. * * TODO: * missing notifications: TVN_GETINFOTIP, TVN_KEYDOWN, * TVN_SETDISPINFO * * missing styles: TVS_INFOTIP, TVS_RTLREADING, * * missing item styles: TVIS_EXPANDPARTIAL, TVIS_EX_FLAT, * TVIS_EX_DISABLED * * Make the insertion mark look right. * Scroll (instead of repaint) as much as possible. */
#include <assert.h>#include <ctype.h>#include <stdarg.h>#include <string.h>#include <limits.h>#include <stdlib.h>
#define NONAMELESSUNION
#include "windef.h"#include "winbase.h"#include "wingdi.h"#include "winuser.h"#include "winnls.h"#include "commctrl.h"#include "comctl32.h"#include "uxtheme.h"#include "vssym32.h"#include "wine/debug.h"#include "wine/exception.h"#include "wine/heap.h"
WINE_DEFAULT_DEBUG_CHANNEL(treeview);
/* internal structures */typedef struct tagTREEVIEW_INFO{ HWND hwnd; HWND hwndNotify; /* Owner window to send notifications to */ DWORD dwStyle; HTREEITEM root; UINT uInternalStatus; INT Timer; UINT uNumItems; /* number of valid TREEVIEW_ITEMs */ INT cdmode; /* last custom draw setting */ UINT uScrollTime; /* max. time for scrolling in milliseconds */ BOOL bRedraw; /* if FALSE we validate but don't redraw in TREEVIEW_Paint() */
UINT uItemHeight; /* item height */ BOOL bHeightSet;
LONG clientWidth; /* width of control window */ LONG clientHeight; /* height of control window */
LONG treeWidth; /* width of visible tree items */ LONG treeHeight; /* height of visible tree items */
UINT uIndent; /* indentation in pixels */ HTREEITEM selectedItem; /* handle to selected item or 0 if none */ HTREEITEM hotItem; /* handle currently under cursor, 0 if none */ HTREEITEM focusedItem; /* item that was under the cursor when WM_LBUTTONDOWN was received */ HTREEITEM editItem; /* item being edited with builtin edit box */
HTREEITEM firstVisible; /* handle to item whose top edge is at y = 0 */ LONG maxVisibleOrder; HTREEITEM dropItem; /* handle to item selected by drag cursor */ HTREEITEM insertMarkItem; /* item after which insertion mark is placed */ BOOL insertBeforeorAfter; /* flag used by TVM_SETINSERTMARK */ HIMAGELIST dragList; /* Bitmap of dragged item */ LONG scrollX; INT wheelRemainder; COLORREF clrBk; COLORREF clrText; COLORREF clrLine; COLORREF clrInsertMark; HFONT hFont; HFONT hDefaultFont; HFONT hBoldFont; HFONT hUnderlineFont; HFONT hBoldUnderlineFont; HCURSOR hcurHand; HWND hwndToolTip;
HWND hwndEdit; WNDPROC wpEditOrig; /* orig window proc for subclassing edit */ BOOL bIgnoreEditKillFocus; BOOL bLabelChanged;
BOOL bNtfUnicode; /* TRUE if should send NOTIFY with W */ HIMAGELIST himlNormal; int normalImageHeight; int normalImageWidth; HIMAGELIST himlState; int stateImageHeight; int stateImageWidth; HDPA items;
DWORD lastKeyPressTimestamp; WPARAM charCode; INT nSearchParamLength; WCHAR szSearchParam[ MAX_PATH ];} TREEVIEW_INFO;
typedef struct _TREEITEM /* HTREEITEM is a _TREEINFO *. */{ HTREEITEM parent; /* handle to parent or 0 if at root */ HTREEITEM nextSibling; /* handle to next item in list, 0 if last */ HTREEITEM firstChild; /* handle to first child or 0 if no child */
UINT callbackMask; UINT state; UINT stateMask; LPWSTR pszText; int cchTextMax; int iImage; int iSelectedImage; int iExpandedImage; int cChildren; LPARAM lParam; int iIntegral; /* item height multiplier (1 is normal) */ int iLevel; /* indentation level:0=root level */ HTREEITEM lastChild; HTREEITEM prevSibling; /* handle to prev item in list, 0 if first */ RECT rect; LONG linesOffset; LONG stateOffset; LONG imageOffset; LONG textOffset; LONG textWidth; /* horizontal text extent for pszText */ LONG visibleOrder; /* Depth-first numbering of the items whose ancestors are all expanded, corresponding to a top-to-bottom ordering in the tree view. Each item takes up "item.iIntegral" spots in the visible order. 0 is the root's first child. */ const TREEVIEW_INFO *infoPtr; /* tree data this item belongs to */} TREEVIEW_ITEM;
/******** Defines that TREEVIEW_ProcessLetterKeys uses ****************/#define KEY_DELAY 450
/* bitflags for infoPtr->uInternalStatus */
#define TV_HSCROLL 0x01 /* treeview too large to fit in window */#define TV_VSCROLL 0x02 /* (horizontal/vertical) */#define TV_LDRAG 0x04 /* Lbutton pushed to start drag */#define TV_LDRAGGING 0x08 /* Lbutton pushed, mouse moved. */#define TV_RDRAG 0x10 /* ditto Rbutton */#define TV_RDRAGGING 0x20
/* bitflags for infoPtr->timer */
#define TV_EDIT_TIMER 2#define TV_EDIT_TIMER_SET 2
#define TEXT_CALLBACK_SIZE 260
#define TREEVIEW_LEFT_MARGIN 8
#define MINIMUM_INDENT 19
#define CALLBACK_MASK_ALL (TVIF_TEXT|TVIF_CHILDREN|TVIF_IMAGE|TVIF_SELECTEDIMAGE)
#define STATEIMAGEINDEX(x) (((x) >> 12) & 0x0f)#define OVERLAYIMAGEINDEX(x) (((x) >> 8) & 0x0f)#define ISVISIBLE(x) ((x)->visibleOrder >= 0)
#define GETLINECOLOR(x) ((x) == CLR_DEFAULT ? comctl32_color.clrGrayText : (x))#define GETBKCOLOR(x) ((x) == CLR_NONE ? comctl32_color.clrWindow : (x))#define GETTXTCOLOR(x) ((x) == CLR_NONE ? comctl32_color.clrWindowText : (x))#define GETINSCOLOR(x) ((x) == CLR_DEFAULT ? comctl32_color.clrBtnText : (x))
static const WCHAR themeClass[] = { 'T','r','e','e','v','i','e','w',0 };
typedef VOID (*TREEVIEW_ItemEnumFunc)(TREEVIEW_INFO *, TREEVIEW_ITEM *,LPVOID);
static VOID TREEVIEW_Invalidate(const TREEVIEW_INFO *, const TREEVIEW_ITEM *);
static LRESULT TREEVIEW_DoSelectItem(TREEVIEW_INFO *, INT, HTREEITEM, INT);static VOID TREEVIEW_SetFirstVisible(TREEVIEW_INFO *, TREEVIEW_ITEM *, BOOL);static LRESULT TREEVIEW_EnsureVisible(TREEVIEW_INFO *, HTREEITEM, BOOL);static LRESULT TREEVIEW_EndEditLabelNow(TREEVIEW_INFO *infoPtr, BOOL bCancel);static VOID TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr);static LRESULT TREEVIEW_HScroll(TREEVIEW_INFO *, WPARAM);
/* Random Utilities *****************************************************/static void TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr);
/* Returns the treeview private data if hwnd is a treeview. * Otherwise returns an undefined value. */static inline TREEVIEW_INFO *TREEVIEW_GetInfoPtr(HWND hwnd){ return (TREEVIEW_INFO *)GetWindowLongPtrW(hwnd, 0);}
/* Don't call this. Nothing wants an item index. */static inline intTREEVIEW_GetItemIndex(const TREEVIEW_INFO *infoPtr, HTREEITEM handle){ return DPA_GetPtrIndex(infoPtr->items, handle);}
/* Checks if item has changed and needs to be redrawn */static inline BOOL item_changed (const TREEVIEW_ITEM *tiOld, const TREEVIEW_ITEM *tiNew, const TVITEMEXW *tvChange){ /* Number of children has changed */ if ((tvChange->mask & TVIF_CHILDREN) && (tiOld->cChildren != tiNew->cChildren)) return TRUE;
/* Image has changed and it's not a callback */ if ((tvChange->mask & TVIF_IMAGE) && (tiOld->iImage != tiNew->iImage) && tiNew->iImage != I_IMAGECALLBACK) return TRUE;
/* Selected image has changed and it's not a callback */ if ((tvChange->mask & TVIF_SELECTEDIMAGE) && (tiOld->iSelectedImage != tiNew->iSelectedImage) && tiNew->iSelectedImage != I_IMAGECALLBACK) return TRUE;
if ((tvChange->mask & TVIF_EXPANDEDIMAGE) && (tiOld->iExpandedImage != tiNew->iExpandedImage) && tiNew->iExpandedImage != I_IMAGECALLBACK) return TRUE;
/* Text has changed and it's not a callback */ if ((tvChange->mask & TVIF_TEXT) && (tiOld->pszText != tiNew->pszText) && tiNew->pszText != LPSTR_TEXTCALLBACKW) return TRUE;
/* Indent has changed */ if ((tvChange->mask & TVIF_INTEGRAL) && (tiOld->iIntegral != tiNew->iIntegral)) return TRUE;
/* Item state has changed */ if ((tvChange->mask & TVIF_STATE) && ((tiOld->state ^ tiNew->state) & tvChange->stateMask )) return TRUE;
return FALSE;}
/*************************************************************************** * This method checks that handle is an item for this tree. */static BOOLTREEVIEW_ValidItem(const TREEVIEW_INFO *infoPtr, HTREEITEM handle){ if (TREEVIEW_GetItemIndex(infoPtr, handle) == -1) { TRACE("invalid item %p\n", handle); return FALSE; } else return TRUE;}
static HFONTTREEVIEW_CreateBoldFont(HFONT hOrigFont){ LOGFONTW font;
GetObjectW(hOrigFont, sizeof(font), &font); font.lfWeight = FW_BOLD; return CreateFontIndirectW(&font);}
static HFONTTREEVIEW_CreateUnderlineFont(HFONT hOrigFont){ LOGFONTW font;
GetObjectW(hOrigFont, sizeof(font), &font); font.lfUnderline = TRUE; return CreateFontIndirectW(&font);}
static HFONTTREEVIEW_CreateBoldUnderlineFont(HFONT hfont){ LOGFONTW font;
GetObjectW(hfont, sizeof(font), &font); font.lfWeight = FW_BOLD; font.lfUnderline = TRUE; return CreateFontIndirectW(&font);}
static inline HFONTTREEVIEW_FontForItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item){ if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (item == infoPtr->hotItem)) return item->state & TVIS_BOLD ? infoPtr->hBoldUnderlineFont : infoPtr->hUnderlineFont; if (item->state & TVIS_BOLD) return infoPtr->hBoldFont; return infoPtr->hFont;}
/* for trace/debugging purposes only */static const char *TREEVIEW_ItemName(const TREEVIEW_ITEM *item){ if (item == NULL) return "<null item>"; if (item->pszText == LPSTR_TEXTCALLBACKW) return "<callback>"; if (item->pszText == NULL) return "<null>"; return debugstr_w(item->pszText);}
/* An item is not a child of itself. */static BOOLTREEVIEW_IsChildOf(const TREEVIEW_ITEM *parent, const TREEVIEW_ITEM *child){ do { child = child->parent; if (child == parent) return TRUE; } while (child != NULL);
return FALSE;}
static BOOLTREEVIEW_IsFullRowSelect(const TREEVIEW_INFO *infoPtr){ return !(infoPtr->dwStyle & TVS_HASLINES) && (infoPtr->dwStyle & TVS_FULLROWSELECT);}
static BOOLTREEVIEW_IsItemHit(const TREEVIEW_INFO *infoPtr, const TVHITTESTINFO *ht){ if (TREEVIEW_IsFullRowSelect(infoPtr)) return ht->flags & (TVHT_ONITEMINDENT | TVHT_ONITEMBUTTON | TVHT_ONITEM | TVHT_ONITEMRIGHT); else return ht->flags & TVHT_ONITEM;}
/* Tree Traversal *******************************************************/
/*************************************************************************** * This method returns the last expanded sibling or child child item * of a tree node */static TREEVIEW_ITEM *TREEVIEW_GetLastListItem(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item){ if (!item) return NULL;
while (item->lastChild) { if (item->state & TVIS_EXPANDED) item = item->lastChild; else break; }
if (item == infoPtr->root) return NULL;
return item;}
/*************************************************************************** * This method returns the previous non-hidden item in the list not * considering the tree hierarchy. */static TREEVIEW_ITEM *TREEVIEW_GetPrevListItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *tvItem){ if (tvItem->prevSibling) { /* This item has a prevSibling, get the last item in the sibling's tree. */ TREEVIEW_ITEM *upItem = tvItem->prevSibling;
if ((upItem->state & TVIS_EXPANDED) && upItem->lastChild != NULL) return TREEVIEW_GetLastListItem(infoPtr, upItem->lastChild); else return upItem; } else { /* this item does not have a prevSibling, get the parent */ return (tvItem->parent != infoPtr->root) ? tvItem->parent : NULL; }}
/*************************************************************************** * This method returns the next physical item in the treeview not * considering the tree hierarchy. */static TREEVIEW_ITEM *TREEVIEW_GetNextListItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *tvItem){ /* * If this item has children and is expanded, return the first child */ if ((tvItem->state & TVIS_EXPANDED) && tvItem->firstChild != NULL) { return tvItem->firstChild; }
/* * try to get the sibling */ if (tvItem->nextSibling) return tvItem->nextSibling;
/* * Otherwise, get the parent's sibling. */ while (tvItem->parent) { tvItem = tvItem->parent;
if (tvItem->nextSibling) return tvItem->nextSibling; }
return NULL;}
/*************************************************************************** * This method returns the nth item starting at the given item. It returns * the last item (or first) we we run out of items. * * Will scroll backward if count is <0. * forward if count is >0. */static TREEVIEW_ITEM *TREEVIEW_GetListItem(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item, LONG count){ TREEVIEW_ITEM *(*next_item)(const TREEVIEW_INFO *, const TREEVIEW_ITEM *); TREEVIEW_ITEM *previousItem;
assert(item != NULL);
if (count > 0) { next_item = TREEVIEW_GetNextListItem; } else if (count < 0) { count = -count; next_item = TREEVIEW_GetPrevListItem; } else return item;
do { previousItem = item; item = next_item(infoPtr, item);
} while (--count && item != NULL);
return item ? item : previousItem;}
/* Notifications ************************************************************/
static INT get_notifycode(const TREEVIEW_INFO *infoPtr, INT code){ if (!infoPtr->bNtfUnicode) { switch (code) { case TVN_SELCHANGINGW: return TVN_SELCHANGINGA; case TVN_SELCHANGEDW: return TVN_SELCHANGEDA; case TVN_GETDISPINFOW: return TVN_GETDISPINFOA; case TVN_SETDISPINFOW: return TVN_SETDISPINFOA; case TVN_ITEMEXPANDINGW: return TVN_ITEMEXPANDINGA; case TVN_ITEMEXPANDEDW: return TVN_ITEMEXPANDEDA; case TVN_BEGINDRAGW: return TVN_BEGINDRAGA; case TVN_BEGINRDRAGW: return TVN_BEGINRDRAGA; case TVN_DELETEITEMW: return TVN_DELETEITEMA; case TVN_BEGINLABELEDITW: return TVN_BEGINLABELEDITA; case TVN_ENDLABELEDITW: return TVN_ENDLABELEDITA; case TVN_GETINFOTIPW: return TVN_GETINFOTIPA; } } return code;}
static inline BOOLTREEVIEW_SendRealNotify(const TREEVIEW_INFO *infoPtr, UINT code, NMHDR *hdr){ TRACE("code=%d, hdr=%p\n", code, hdr);
hdr->hwndFrom = infoPtr->hwnd; hdr->idFrom = GetWindowLongPtrW(infoPtr->hwnd, GWLP_ID); hdr->code = get_notifycode(infoPtr, code);
return SendMessageW(infoPtr->hwndNotify, WM_NOTIFY, hdr->idFrom, (LPARAM)hdr);}
static BOOLTREEVIEW_SendSimpleNotify(const TREEVIEW_INFO *infoPtr, UINT code){ NMHDR hdr; return TREEVIEW_SendRealNotify(infoPtr, code, &hdr);}
static VOIDTREEVIEW_TVItemFromItem(const TREEVIEW_INFO *infoPtr, UINT mask, TVITEMW *tvItem, TREEVIEW_ITEM *item){ tvItem->mask = mask; tvItem->hItem = item; tvItem->state = item->state; tvItem->stateMask = 0; tvItem->iImage = item->iImage; tvItem->iSelectedImage = item->iSelectedImage; tvItem->cChildren = item->cChildren; tvItem->lParam = item->lParam;
if(mask & TVIF_TEXT) { if (!infoPtr->bNtfUnicode) { tvItem->cchTextMax = WideCharToMultiByte( CP_ACP, 0, item->pszText, -1, NULL, 0, NULL, NULL ); tvItem->pszText = heap_alloc (tvItem->cchTextMax); WideCharToMultiByte( CP_ACP, 0, item->pszText, -1, (LPSTR)tvItem->pszText, tvItem->cchTextMax, 0, 0 ); } else { tvItem->cchTextMax = item->cchTextMax; tvItem->pszText = item->pszText; } } else { tvItem->cchTextMax = 0; tvItem->pszText = NULL; }}
static BOOLTREEVIEW_SendTreeviewNotify(const TREEVIEW_INFO *infoPtr, UINT code, UINT action, UINT mask, HTREEITEM oldItem, HTREEITEM newItem){ NMTREEVIEWW nmhdr; BOOL ret;
TRACE("code:%d action:0x%x olditem:%p newitem:%p\n", code, action, oldItem, newItem);
memset(&nmhdr, 0, sizeof(NMTREEVIEWW)); nmhdr.action = action;
if (oldItem) TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemOld, oldItem);
if (newItem) TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemNew, newItem);
nmhdr.ptDrag.x = 0; nmhdr.ptDrag.y = 0;
ret = TREEVIEW_SendRealNotify(infoPtr, code, &nmhdr.hdr); if (!infoPtr->bNtfUnicode) { heap_free(nmhdr.itemOld.pszText); heap_free(nmhdr.itemNew.pszText); } return ret;}
static BOOLTREEVIEW_SendTreeviewDnDNotify(const TREEVIEW_INFO *infoPtr, UINT code, HTREEITEM dragItem, POINT pt){ NMTREEVIEWW nmhdr;
TRACE("code:%d dragitem:%p\n", code, dragItem);
nmhdr.action = 0; nmhdr.itemNew.mask = TVIF_STATE | TVIF_PARAM | TVIF_HANDLE; nmhdr.itemNew.hItem = dragItem; nmhdr.itemNew.state = dragItem->state; nmhdr.itemNew.lParam = dragItem->lParam;
nmhdr.ptDrag.x = pt.x; nmhdr.ptDrag.y = pt.y;
return TREEVIEW_SendRealNotify(infoPtr, code, &nmhdr.hdr);}
static BOOLTREEVIEW_SendCustomDrawNotify(const TREEVIEW_INFO *infoPtr, DWORD dwDrawStage, HDC hdc, RECT rc){ NMTVCUSTOMDRAW nmcdhdr; NMCUSTOMDRAW *nmcd;
TRACE("drawstage:0x%x hdc:%p\n", dwDrawStage, hdc);
nmcd = &nmcdhdr.nmcd; nmcd->dwDrawStage = dwDrawStage; nmcd->hdc = hdc; nmcd->rc = rc; nmcd->dwItemSpec = 0; nmcd->uItemState = 0; nmcd->lItemlParam = 0; nmcdhdr.clrText = infoPtr->clrText; nmcdhdr.clrTextBk = infoPtr->clrBk; nmcdhdr.iLevel = 0;
return TREEVIEW_SendRealNotify(infoPtr, NM_CUSTOMDRAW, &nmcdhdr.nmcd.hdr);}
/* FIXME: need to find out when the flags in uItemState need to be set */
static BOOLTREEVIEW_SendCustomDrawItemNotify(const TREEVIEW_INFO *infoPtr, HDC hdc, TREEVIEW_ITEM *item, UINT uItemDrawState, NMTVCUSTOMDRAW *nmcdhdr){ NMCUSTOMDRAW *nmcd; DWORD dwDrawStage; DWORD_PTR dwItemSpec; UINT uItemState;
dwDrawStage = CDDS_ITEM | uItemDrawState; dwItemSpec = (DWORD_PTR)item; uItemState = 0; if (item->state & TVIS_SELECTED) uItemState |= CDIS_SELECTED; if (item == infoPtr->selectedItem) uItemState |= CDIS_FOCUS; if (item == infoPtr->hotItem) uItemState |= CDIS_HOT;
nmcd = &nmcdhdr->nmcd; nmcd->dwDrawStage = dwDrawStage; nmcd->hdc = hdc; nmcd->rc = item->rect; nmcd->dwItemSpec = dwItemSpec; nmcd->uItemState = uItemState; nmcd->lItemlParam = item->lParam; nmcdhdr->iLevel = item->iLevel;
TRACE("drawstage:0x%x hdc:%p item:%lx, itemstate:0x%x, lItemlParam:0x%lx\n", nmcd->dwDrawStage, nmcd->hdc, nmcd->dwItemSpec, nmcd->uItemState, nmcd->lItemlParam);
return TREEVIEW_SendRealNotify(infoPtr, NM_CUSTOMDRAW, &nmcdhdr->nmcd.hdr);}
static BOOLTREEVIEW_BeginLabelEditNotify(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *editItem){ NMTVDISPINFOW tvdi; BOOL ret;
TREEVIEW_TVItemFromItem(infoPtr, TVIF_HANDLE | TVIF_STATE | TVIF_PARAM | TVIF_TEXT, &tvdi.item, editItem);
ret = TREEVIEW_SendRealNotify(infoPtr, TVN_BEGINLABELEDITW, &tvdi.hdr);
if (!infoPtr->bNtfUnicode) heap_free(tvdi.item.pszText);
return ret;}
static voidTREEVIEW_UpdateDispInfo(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item, UINT mask){ NMTVDISPINFOEXW callback;
TRACE("mask=0x%x, callbackmask=0x%x\n", mask, item->callbackMask); mask &= item->callbackMask;
if (mask == 0) return;
/* 'state' always contains valid value, as well as 'lParam'. * All other parameters are uninitialized. */ callback.item.pszText = item->pszText; callback.item.cchTextMax = item->cchTextMax; callback.item.mask = mask; callback.item.hItem = item; callback.item.state = item->state; callback.item.lParam = item->lParam;
/* If text is changed we need to recalculate textWidth */ if (mask & TVIF_TEXT) item->textWidth = 0;
TREEVIEW_SendRealNotify(infoPtr, TVN_GETDISPINFOW, &callback.hdr); TRACE("resulting code 0x%08x\n", callback.hdr.code);
/* It may have changed due to a call to SetItem. */ mask &= item->callbackMask;
if ((mask & TVIF_TEXT) && callback.item.pszText != item->pszText) { /* Instead of copying text into our buffer user specified his own */ if (!infoPtr->bNtfUnicode && (callback.hdr.code == TVN_GETDISPINFOA)) { LPWSTR newText; int buflen; int len = MultiByteToWideChar( CP_ACP, 0, (LPSTR)callback.item.pszText, -1, NULL, 0); buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE); newText = heap_realloc(item->pszText, buflen);
TRACE("returned str %s, len=%d, buflen=%d\n", debugstr_a((LPSTR)callback.item.pszText), len, buflen);
if (newText) { item->pszText = newText; MultiByteToWideChar( CP_ACP, 0, (LPSTR)callback.item.pszText, -1, item->pszText, buflen/sizeof(WCHAR)); item->cchTextMax = buflen/sizeof(WCHAR); } /* If realloc fails we have nothing to do, but keep original text */ } else { int len = max(lstrlenW(callback.item.pszText) + 1, TEXT_CALLBACK_SIZE); LPWSTR newText = heap_realloc(item->pszText, len*sizeof(WCHAR));
TRACE("returned wstr %s, len=%d\n", debugstr_w(callback.item.pszText), len);
if (newText) { item->pszText = newText; lstrcpyW(item->pszText, callback.item.pszText); item->cchTextMax = len; } /* If realloc fails we have nothing to do, but keep original text */ } } else if (mask & TVIF_TEXT) { /* User put text into our buffer, that is ok unless A string */ if (!infoPtr->bNtfUnicode && (callback.hdr.code == TVN_GETDISPINFOA)) { LPWSTR newText; int buflen; int len = MultiByteToWideChar( CP_ACP, 0, (LPSTR)callback.item.pszText, -1, NULL, 0); buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE); newText = heap_alloc(buflen);
TRACE("same buffer str %s, len=%d, buflen=%d\n", debugstr_a((LPSTR)callback.item.pszText), len, buflen);
if (newText) { LPWSTR oldText = item->pszText; item->pszText = newText; MultiByteToWideChar( CP_ACP, 0, (LPSTR)callback.item.pszText, -1, item->pszText, buflen/sizeof(WCHAR)); item->cchTextMax = buflen/sizeof(WCHAR); heap_free(oldText); } } }
if (mask & TVIF_IMAGE) item->iImage = callback.item.iImage;
if (mask & TVIF_SELECTEDIMAGE) item->iSelectedImage = callback.item.iSelectedImage;
if (mask & TVIF_EXPANDEDIMAGE) item->iExpandedImage = callback.item.iExpandedImage;
if (mask & TVIF_CHILDREN) item->cChildren = callback.item.cChildren;
if (callback.item.mask & TVIF_STATE) { item->state &= ~callback.item.stateMask; item->state |= (callback.item.state & callback.item.stateMask); }
/* These members are now permanently set. */ if (callback.item.mask & TVIF_DI_SETITEM) item->callbackMask &= ~callback.item.mask;}
/*************************************************************************** * This function uses cChildren field to decide whether the item has * children or not. * Note: if this returns TRUE, the child items may not actually exist, * they could be virtual. * * Just use item->firstChild to check for physical children. */static BOOLTREEVIEW_HasChildren(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item){ TREEVIEW_UpdateDispInfo(infoPtr, item, TVIF_CHILDREN); /* Protect for a case when callback field is not changed by a host, otherwise negative values trigger normal notifications. */ return item->cChildren != 0 && item->cChildren != I_CHILDRENCALLBACK;}
static INT TREEVIEW_NotifyFormat (TREEVIEW_INFO *infoPtr, HWND hwndFrom, UINT nCommand){ INT format;
TRACE("(hwndFrom=%p, nCommand=%d)\n", hwndFrom, nCommand);
if (nCommand != NF_REQUERY) return 0;
format = SendMessageW(hwndFrom, WM_NOTIFYFORMAT, (WPARAM)infoPtr->hwnd, NF_QUERY); TRACE("format=%d\n", format);
/* Invalid format returned by NF_QUERY defaults to ANSI*/ if (format != NFR_ANSI && format != NFR_UNICODE) format = NFR_ANSI;
infoPtr->bNtfUnicode = (format == NFR_UNICODE);
return format;}
/* Item Position ********************************************************/
/* Compute linesOffset, stateOffset, imageOffset, textOffset of an item. */static VOIDTREEVIEW_ComputeItemInternalMetrics(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item){ /* has TVS_LINESATROOT and (TVS_HASLINES|TVS_HASBUTTONS) */ BOOL lar = ((infoPtr->dwStyle & (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS)) > TVS_LINESATROOT);
item->linesOffset = infoPtr->uIndent * (lar ? item->iLevel : item->iLevel - 1) - infoPtr->scrollX; item->stateOffset = item->linesOffset + infoPtr->uIndent; item->imageOffset = item->stateOffset + (STATEIMAGEINDEX(item->state) ? infoPtr->stateImageWidth : 0); item->textOffset = item->imageOffset + infoPtr->normalImageWidth;}
static VOIDTREEVIEW_ComputeTextWidth(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item, HDC hDC){ HDC hdc; HFONT hOldFont=0; SIZE sz;
/* DRAW's OM docker creates items like this */ if (item->pszText == NULL) { item->textWidth = 0; return; }
if (hDC != 0) { hdc = hDC; } else { hdc = GetDC(infoPtr->hwnd); hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, item)); }
GetTextExtentPoint32W(hdc, item->pszText, lstrlenW(item->pszText), &sz); item->textWidth = sz.cx;
if (hDC == 0) { SelectObject(hdc, hOldFont); ReleaseDC(0, hdc); }}
static VOIDTREEVIEW_ComputeItemRect(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item){ item->rect.top = infoPtr->uItemHeight * (item->visibleOrder - infoPtr->firstVisible->visibleOrder);
item->rect.bottom = item->rect.top + infoPtr->uItemHeight * item->iIntegral - 1;
item->rect.left = 0; item->rect.right = infoPtr->clientWidth;}
/* We know that only items after start need their order updated. */static voidTREEVIEW_RecalculateVisibleOrder(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *start){ TREEVIEW_ITEM *item; int order;
if (!start) { start = infoPtr->root->firstChild; order = 0; } else order = start->visibleOrder;
for (item = start; item != NULL; item = TREEVIEW_GetNextListItem(infoPtr, item)) { if (!ISVISIBLE(item) && order > 0) TREEVIEW_ComputeItemInternalMetrics(infoPtr, item); item->visibleOrder = order; order += item->iIntegral; }
infoPtr->maxVisibleOrder = order;
for (item = infoPtr->root->firstChild; item != NULL; item = TREEVIEW_GetNextListItem(infoPtr, item)) { TREEVIEW_ComputeItemRect(infoPtr, item); }}
/* Update metrics of all items in selected subtree. * root must be expanded */static VOIDTREEVIEW_UpdateSubTree(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *root){ TREEVIEW_ITEM *sibling; HDC hdc; HFONT hOldFont;
if (!root->firstChild || !(root->state & TVIS_EXPANDED)) return;
root->state &= ~TVIS_EXPANDED; sibling = TREEVIEW_GetNextListItem(infoPtr, root); root->state |= TVIS_EXPANDED;
hdc = GetDC(infoPtr->hwnd); hOldFont = SelectObject(hdc, infoPtr->hFont);
for (; root != sibling; root = TREEVIEW_GetNextListItem(infoPtr, root)) { TREEVIEW_ComputeItemInternalMetrics(infoPtr, root);
if (root->callbackMask & TVIF_TEXT) TREEVIEW_UpdateDispInfo(infoPtr, root, TVIF_TEXT);
if (root->textWidth == 0) { SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, root)); TREEVIEW_ComputeTextWidth(infoPtr, root, hdc); } }
SelectObject(hdc, hOldFont); ReleaseDC(infoPtr->hwnd, hdc);}
/* Item Allocation **********************************************************/
static TREEVIEW_ITEM *TREEVIEW_AllocateItem(const TREEVIEW_INFO *infoPtr){ TREEVIEW_ITEM *newItem = heap_alloc_zero(sizeof(*newItem));
if (!newItem) return NULL;
/* I_IMAGENONE would make more sense but this is neither what is * documented (MSDN doesn't specify) nor what Windows actually does * (it sets it to zero)... and I can so imagine an application using * inc/dec to toggle the images. */ newItem->iImage = 0; newItem->iSelectedImage = 0; newItem->iExpandedImage = (WORD)I_IMAGENONE; newItem->infoPtr = infoPtr;
if (DPA_InsertPtr(infoPtr->items, INT_MAX, newItem) == -1) { heap_free(newItem); return NULL; }
return newItem;}
/* Exact opposite of TREEVIEW_AllocateItem. In particular, it does not * free item->pszText. */static voidTREEVIEW_FreeItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item){ DPA_DeletePtr(infoPtr->items, DPA_GetPtrIndex(infoPtr->items, item)); if (infoPtr->selectedItem == item) infoPtr->selectedItem = NULL; if (infoPtr->hotItem == item) infoPtr->hotItem = NULL; if (infoPtr->focusedItem == item) infoPtr->focusedItem = NULL; if (infoPtr->firstVisible == item) infoPtr->firstVisible = NULL; if (infoPtr->dropItem == item) infoPtr->dropItem = NULL; if (infoPtr->insertMarkItem == item) infoPtr->insertMarkItem = NULL; heap_free(item);}
/* Item Insertion *******************************************************/
/*************************************************************************** * This method inserts newItem before sibling as a child of parent. * sibling can be NULL, but only if parent has no children. */static voidTREEVIEW_InsertBefore(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling, TREEVIEW_ITEM *parent){ assert(parent != NULL);
if (sibling != NULL) { assert(sibling->parent == parent);
if (sibling->prevSibling != NULL) sibling->prevSibling->nextSibling = newItem;
newItem->prevSibling = sibling->prevSibling; sibling->prevSibling = newItem; } else newItem->prevSibling = NULL;
newItem->nextSibling = sibling;
if (parent->firstChild == sibling) parent->firstChild = newItem;
if (parent->lastChild == NULL) parent->lastChild = newItem;}
/*************************************************************************** * This method inserts newItem after sibling as a child of parent. * sibling can be NULL, but only if parent has no children. */static voidTREEVIEW_InsertAfter(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling, TREEVIEW_ITEM *parent){ assert(parent != NULL);
if (sibling != NULL) { assert(sibling->parent == parent);
if (sibling->nextSibling != NULL) sibling->nextSibling->prevSibling = newItem;
newItem->nextSibling = sibling->nextSibling; sibling->nextSibling = newItem; } else newItem->nextSibling = NULL;
newItem->prevSibling = sibling;
if (parent->lastChild == sibling) parent->lastChild = newItem;
if (parent->firstChild == NULL) parent->firstChild = newItem;}
static BOOLTREEVIEW_DoSetItemT(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item, const TVITEMEXW *tvItem, BOOL isW){ UINT callbackClear = 0; UINT callbackSet = 0;
TRACE("item %p\n", item); /* Do this first in case it fails. */ if (tvItem->mask & TVIF_TEXT) { item->textWidth = 0; /* force width recalculation */
/* Covers != TEXTCALLBACKA too, and undocumented: pszText of NULL also means TEXTCALLBACK */ if (tvItem->pszText != LPSTR_TEXTCALLBACKW && tvItem->pszText != NULL) { int len; LPWSTR newText; if (isW) len = lstrlenW(tvItem->pszText) + 1; else len = MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1, NULL, 0);
/* Allocate new block to make pointer comparison in item_changed() work. */ newText = heap_alloc(len * sizeof(WCHAR));
if (newText == NULL) return FALSE;
callbackClear |= TVIF_TEXT;
heap_free(item->pszText); item->pszText = newText; item->cchTextMax = len; if (isW) lstrcpynW(item->pszText, tvItem->pszText, len); else MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1, item->pszText, len);
TRACE("setting text %s, item %p\n", debugstr_w(item->pszText), item); } else { callbackSet |= TVIF_TEXT; item->pszText = heap_realloc(item->pszText, TEXT_CALLBACK_SIZE * sizeof(WCHAR)); item->cchTextMax = TEXT_CALLBACK_SIZE; TRACE("setting callback, item %p\n", item); } }
if (tvItem->mask & TVIF_CHILDREN) { item->cChildren = tvItem->cChildren;
if (item->cChildren == I_CHILDRENCALLBACK) callbackSet |= TVIF_CHILDREN; else callbackClear |= TVIF_CHILDREN; }
if (tvItem->mask & TVIF_IMAGE) { item->iImage = tvItem->iImage;
if (item->iImage == I_IMAGECALLBACK) callbackSet |= TVIF_IMAGE; else callbackClear |= TVIF_IMAGE; }
if (tvItem->mask & TVIF_SELECTEDIMAGE) { item->iSelectedImage = tvItem->iSelectedImage;
if (item->iSelectedImage == I_IMAGECALLBACK) callbackSet |= TVIF_SELECTEDIMAGE; else callbackClear |= TVIF_SELECTEDIMAGE; }
if (tvItem->mask & TVIF_EXPANDEDIMAGE) { item->iExpandedImage = tvItem->iExpandedImage;
if (item->iExpandedImage == I_IMAGECALLBACK) callbackSet |= TVIF_EXPANDEDIMAGE; else callbackClear |= TVIF_EXPANDEDIMAGE; }
if (tvItem->mask & TVIF_PARAM) item->lParam = tvItem->lParam;
/* If the application sets TVIF_INTEGRAL without * supplying a TVITEMEX structure, it's toast. */ if (tvItem->mask & TVIF_INTEGRAL) item->iIntegral = tvItem->iIntegral;
if (tvItem->mask & TVIF_STATE) { TRACE("prevstate 0x%x, state 0x%x, mask 0x%x\n", item->state, tvItem->state, tvItem->stateMask); item->state &= ~tvItem->stateMask; item->state |= (tvItem->state & tvItem->stateMask); }
if (tvItem->mask & TVIF_STATEEX) { FIXME("New extended state: 0x%x\n", tvItem->uStateEx); }
item->callbackMask |= callbackSet; item->callbackMask &= ~callbackClear;
return TRUE;}
/* Note that the new item is pre-zeroed. */static LRESULTTREEVIEW_InsertItemT(TREEVIEW_INFO *infoPtr, const TVINSERTSTRUCTW *ptdi, BOOL isW){ const TVITEMEXW *tvItem = &ptdi->u.itemex; HTREEITEM insertAfter; TREEVIEW_ITEM *newItem, *parentItem; BOOL bTextUpdated = FALSE;
if (ptdi->hParent == TVI_ROOT || ptdi->hParent == 0) { parentItem = infoPtr->root; } else { parentItem = ptdi->hParent;
if (!TREEVIEW_ValidItem(infoPtr, parentItem)) { WARN("invalid parent %p\n", parentItem); return 0; } }
insertAfter = ptdi->hInsertAfter;
/* Validate this now for convenience. */ switch ((DWORD_PTR)insertAfter) { case (DWORD_PTR)TVI_FIRST: case (DWORD_PTR)TVI_LAST: case (DWORD_PTR)TVI_SORT: break;
default: if (!TREEVIEW_ValidItem(infoPtr, insertAfter) || insertAfter->parent != parentItem) { WARN("invalid insert after %p\n", insertAfter); insertAfter = TVI_LAST; } }
TRACE("parent %p position %p: %s\n", parentItem, insertAfter, (tvItem->mask & TVIF_TEXT) ? ((tvItem->pszText == LPSTR_TEXTCALLBACKW) ? "<callback>" : (isW ? debugstr_w(tvItem->pszText) : debugstr_a((LPSTR)tvItem->pszText))) : "<no label>");
newItem = TREEVIEW_AllocateItem(infoPtr); if (newItem == NULL) return 0;
newItem->parent = parentItem; newItem->iIntegral = 1; newItem->visibleOrder = -1;
if (!TREEVIEW_DoSetItemT(infoPtr, newItem, tvItem, isW)) return 0;
/* After this point, nothing can fail. (Except for TVI_SORT.) */
infoPtr->uNumItems++;
switch ((DWORD_PTR)insertAfter) { case (DWORD_PTR)TVI_FIRST: { TREEVIEW_ITEM *originalFirst = parentItem->firstChild; TREEVIEW_InsertBefore(newItem, parentItem->firstChild, parentItem); if (infoPtr->firstVisible == originalFirst) TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE); } break;
case (DWORD_PTR)TVI_LAST: TREEVIEW_InsertAfter(newItem, parentItem->lastChild, parentItem); break;
/* hInsertAfter names a specific item we want to insert after */ default: TREEVIEW_InsertAfter(newItem, insertAfter, insertAfter->parent); break;
case (DWORD_PTR)TVI_SORT: { TREEVIEW_ITEM *aChild; TREEVIEW_ITEM *previousChild = NULL; TREEVIEW_ITEM *originalFirst = parentItem->firstChild; BOOL bItemInserted = FALSE;
aChild = parentItem->firstChild;
bTextUpdated = TRUE; TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
/* Iterate the parent children to see where we fit in */ while (aChild != NULL) { INT comp;
TREEVIEW_UpdateDispInfo(infoPtr, aChild, TVIF_TEXT); comp = lstrcmpW(newItem->pszText, aChild->pszText);
if (comp < 0) /* we are smaller than the current one */ { TREEVIEW_InsertBefore(newItem, aChild, parentItem); if (infoPtr->firstVisible == originalFirst && aChild == originalFirst) TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE); bItemInserted = TRUE; break; } else if (comp > 0) /* we are bigger than the current one */ { previousChild = aChild;
/* This will help us to exit if there is no more sibling */ aChild = (aChild->nextSibling == 0) ? NULL : aChild->nextSibling;
/* Look at the next item */ continue; } else if (comp == 0) { /* * An item with this name is already existing, therefore, * we add after the one we found */ TREEVIEW_InsertAfter(newItem, aChild, parentItem); bItemInserted = TRUE; break; } }
/* * we reach the end of the child list and the item has not * yet been inserted, therefore, insert it after the last child. */ if ((!bItemInserted) && (aChild == NULL)) TREEVIEW_InsertAfter(newItem, previousChild, parentItem);
break; } }
TRACE("new item %p; parent %p, mask 0x%x\n", newItem, newItem->parent, tvItem->mask);
newItem->iLevel = newItem->parent->iLevel + 1;
if (newItem->parent->cChildren == 0) newItem->parent->cChildren = 1;
if (infoPtr->dwStyle & TVS_CHECKBOXES) { if (STATEIMAGEINDEX(newItem->state) == 0) newItem->state |= INDEXTOSTATEIMAGEMASK(1); }
if (infoPtr->firstVisible == NULL) infoPtr->firstVisible = newItem;
TREEVIEW_VerifyTree(infoPtr);
if (!infoPtr->bRedraw) return (LRESULT)newItem;
if (parentItem == infoPtr->root || (ISVISIBLE(parentItem) && parentItem->state & TVIS_EXPANDED)) { TREEVIEW_ITEM *item; TREEVIEW_ITEM *prev = TREEVIEW_GetPrevListItem(infoPtr, newItem);
TREEVIEW_RecalculateVisibleOrder(infoPtr, prev); TREEVIEW_ComputeItemInternalMetrics(infoPtr, newItem);
if (!bTextUpdated) TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
TREEVIEW_ComputeTextWidth(infoPtr, newItem, 0); TREEVIEW_UpdateScrollBars(infoPtr); /* * if the item was inserted in a visible part of the tree, * invalidate it, as well as those after it */ for (item = newItem; item != NULL; item = TREEVIEW_GetNextListItem(infoPtr, item)) TREEVIEW_Invalidate(infoPtr, item); } else { /* refresh treeview if newItem is the first item inserted under parentItem */ if (ISVISIBLE(parentItem) && newItem->prevSibling == newItem->nextSibling) { /* parent got '+' - update it */ TREEVIEW_Invalidate(infoPtr, parentItem); } }
return (LRESULT)newItem;}
/* Item Deletion ************************************************************/static voidTREEVIEW_RemoveItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item);
static voidTREEVIEW_RemoveAllChildren(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *parentItem){ TREEVIEW_ITEM *kill = parentItem->firstChild;
while (kill != NULL) { TREEVIEW_ITEM *next = kill->nextSibling;
TREEVIEW_RemoveItem(infoPtr, kill);
kill = next; }
assert(parentItem->cChildren <= 0); /* I_CHILDRENCALLBACK or 0 */ assert(parentItem->firstChild == NULL); assert(parentItem->lastChild == NULL);}
static voidTREEVIEW_UnlinkItem(const TREEVIEW_ITEM *item){ TREEVIEW_ITEM *parentItem;
assert(item != NULL); assert(item->parent != NULL); /* i.e. it must not be the root */
parentItem = item->parent;
if (parentItem->firstChild == item) parentItem->firstChild = item->nextSibling;
if (parentItem->lastChild == item) parentItem->lastChild = item->prevSibling;
if (parentItem->firstChild == NULL && parentItem->lastChild == NULL && parentItem->cChildren > 0) parentItem->cChildren = 0;
if (item->prevSibling) item->prevSibling->nextSibling = item->nextSibling;
if (item->nextSibling) item->nextSibling->prevSibling = item->prevSibling;}
static voidTREEVIEW_RemoveItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item){ TRACE("%p, (%s)\n", item, TREEVIEW_ItemName(item));
if (item->firstChild) TREEVIEW_RemoveAllChildren(infoPtr, item);
TREEVIEW_SendTreeviewNotify(infoPtr, TVN_DELETEITEMW, TVC_UNKNOWN, TVIF_HANDLE | TVIF_PARAM, item, 0);
TREEVIEW_UnlinkItem(item);
infoPtr->uNumItems--;
if (item->pszText != LPSTR_TEXTCALLBACKW) heap_free(item->pszText);
TREEVIEW_FreeItem(infoPtr, item);}
/* Empty out the tree. */static voidTREEVIEW_RemoveTree(TREEVIEW_INFO *infoPtr){ TREEVIEW_RemoveAllChildren(infoPtr, infoPtr->root);
assert(infoPtr->uNumItems == 0); /* root isn't counted in uNumItems */}
static LRESULTTREEVIEW_DeleteItem(TREEVIEW_INFO *infoPtr, HTREEITEM item){ TREEVIEW_ITEM *newSelection = NULL; TREEVIEW_ITEM *newFirstVisible = NULL; TREEVIEW_ITEM *parent, *prev = NULL; BOOL visible = FALSE;
if (item == TVI_ROOT || !item) { TRACE("TVI_ROOT\n"); parent = infoPtr->root; newSelection = NULL; visible = TRUE; TREEVIEW_RemoveTree(infoPtr); } else { if (!TREEVIEW_ValidItem(infoPtr, item)) return FALSE;
TRACE("%p (%s)\n", item, TREEVIEW_ItemName(item)); parent = item->parent;
if (ISVISIBLE(item)) { prev = TREEVIEW_GetPrevListItem(infoPtr, item); visible = TRUE; }
if (infoPtr->selectedItem != NULL && (item == infoPtr->selectedItem || TREEVIEW_IsChildOf(item, infoPtr->selectedItem))) { if (item->nextSibling) newSelection = item->nextSibling; else if (item->parent != infoPtr->root) newSelection = item->parent; else newSelection = item->prevSibling; TRACE("newSelection = %p\n", newSelection); }
if (infoPtr->firstVisible == item) { visible = TRUE; if (item->nextSibling) newFirstVisible = item->nextSibling; else if (item->prevSibling) newFirstVisible = item->prevSibling; else if (item->parent != infoPtr->root) newFirstVisible = item->parent; TREEVIEW_SetFirstVisible(infoPtr, NULL, TRUE); } else newFirstVisible = infoPtr->firstVisible;
TREEVIEW_RemoveItem(infoPtr, item); }
/* Don't change if somebody else already has (infoPtr->selectedItem is cleared by FreeItem). */ if (!infoPtr->selectedItem && newSelection) { if (TREEVIEW_ValidItem(infoPtr, newSelection)) TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, newSelection, TVC_UNKNOWN); }
/* Validate insertMark dropItem. * hotItem ??? - used for comparison only. */ if (!TREEVIEW_ValidItem(infoPtr, infoPtr->insertMarkItem)) infoPtr->insertMarkItem = 0;
if (!TREEVIEW_ValidItem(infoPtr, infoPtr->dropItem)) infoPtr->dropItem = 0;
if (!TREEVIEW_ValidItem(infoPtr, newFirstVisible)) newFirstVisible = infoPtr->root->firstChild;
TREEVIEW_VerifyTree(infoPtr);
if (visible) TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
if (!infoPtr->bRedraw) return TRUE;
if (visible) { TREEVIEW_RecalculateVisibleOrder(infoPtr, prev); TREEVIEW_UpdateScrollBars(infoPtr); TREEVIEW_Invalidate(infoPtr, NULL); } else if (ISVISIBLE(parent) && !TREEVIEW_HasChildren(infoPtr, parent)) { /* parent lost '+/-' - update it */ TREEVIEW_Invalidate(infoPtr, parent); }
return TRUE;}
/* Get/Set Messages *********************************************************/static LRESULTTREEVIEW_SetRedraw(TREEVIEW_INFO* infoPtr, WPARAM wParam){ infoPtr->bRedraw = wParam != 0;
if (infoPtr->bRedraw) { TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root); TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL); TREEVIEW_UpdateScrollBars(infoPtr); TREEVIEW_Invalidate(infoPtr, NULL); } return 0;}
static LRESULTTREEVIEW_GetIndent(const TREEVIEW_INFO *infoPtr){ TRACE("\n"); return infoPtr->uIndent;}
static LRESULTTREEVIEW_SetIndent(TREEVIEW_INFO *infoPtr, UINT newIndent){ TRACE("\n");
if (newIndent < MINIMUM_INDENT) newIndent = MINIMUM_INDENT;
if (infoPtr->uIndent != newIndent) { infoPtr->uIndent = newIndent; TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root); TREEVIEW_UpdateScrollBars(infoPtr); TREEVIEW_Invalidate(infoPtr, NULL); }
return 0;}
static LRESULTTREEVIEW_GetToolTips(const TREEVIEW_INFO *infoPtr){ TRACE("\n"); return (LRESULT)infoPtr->hwndToolTip;}
static LRESULTTREEVIEW_SetToolTips(TREEVIEW_INFO *infoPtr, HWND hwndTT){ HWND prevToolTip;
TRACE("\n"); prevToolTip = infoPtr->hwndToolTip; infoPtr->hwndToolTip = hwndTT;
return (LRESULT)prevToolTip;}
static LRESULTTREEVIEW_SetUnicodeFormat(TREEVIEW_INFO *infoPtr, BOOL fUnicode){ BOOL rc = infoPtr->bNtfUnicode; infoPtr->bNtfUnicode = fUnicode; return rc;}
static LRESULTTREEVIEW_GetUnicodeFormat(const TREEVIEW_INFO *infoPtr){ return infoPtr->bNtfUnicode;}
static LRESULTTREEVIEW_GetScrollTime(const TREEVIEW_INFO *infoPtr){ return infoPtr->uScrollTime;}
static LRESULTTREEVIEW_SetScrollTime(TREEVIEW_INFO *infoPtr, UINT uScrollTime){ UINT uOldScrollTime = infoPtr->uScrollTime;
infoPtr->uScrollTime = min(uScrollTime, 100);
return uOldScrollTime;}
static LRESULTTREEVIEW_GetImageList(const TREEVIEW_INFO *infoPtr, WPARAM wParam){ TRACE("\n");
switch (wParam) { case TVSIL_NORMAL: return (LRESULT)infoPtr->himlNormal;
case TVSIL_STATE: return (LRESULT)infoPtr->himlState;
default: return 0; }}
#define TVHEIGHT_MIN 16#define TVHEIGHT_FONT_ADJUST 3 /* 2 for focus border + 1 for margin some apps assume */
/* Compute the natural height for items. */static UINTTREEVIEW_NaturalHeight(const TREEVIEW_INFO *infoPtr){ TEXTMETRICW tm; HDC hdc = GetDC(0); HFONT hOldFont = SelectObject(hdc, infoPtr->hFont); UINT height;
/* Height is the maximum of: * 16 (a hack because our fonts are tiny), and * The text height + border & margin, and * The size of the normal image list */ GetTextMetricsW(hdc, &tm); SelectObject(hdc, hOldFont); ReleaseDC(0, hdc);
height = TVHEIGHT_MIN; if (height < tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST) height = tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST; if (height < infoPtr->normalImageHeight) height = infoPtr->normalImageHeight;
/* Round down, unless we support odd ("non even") heights. */ if (!(infoPtr->dwStyle & TVS_NONEVENHEIGHT)) height &= ~1;
return height;}
static LRESULTTREEVIEW_SetImageList(TREEVIEW_INFO *infoPtr, UINT type, HIMAGELIST himlNew){ HIMAGELIST himlOld = 0; int oldWidth = infoPtr->normalImageWidth; int oldHeight = infoPtr->normalImageHeight;
TRACE("%u,%p\n", type, himlNew);
switch (type) { case TVSIL_NORMAL: himlOld = infoPtr->himlNormal; infoPtr->himlNormal = himlNew;
if (himlNew) ImageList_GetIconSize(himlNew, &infoPtr->normalImageWidth, &infoPtr->normalImageHeight); else { infoPtr->normalImageWidth = 0; infoPtr->normalImageHeight = 0; }
break;
case TVSIL_STATE: himlOld = infoPtr->himlState; infoPtr->himlState = himlNew;
if (himlNew) ImageList_GetIconSize(himlNew, &infoPtr->stateImageWidth, &infoPtr->stateImageHeight); else { infoPtr->stateImageWidth = 0; infoPtr->stateImageHeight = 0; }
break;
default: ERR("unknown imagelist type %u\n", type); }
if (oldWidth != infoPtr->normalImageWidth || oldHeight != infoPtr->normalImageHeight) { BOOL bRecalcVisible = FALSE;
if (oldHeight != infoPtr->normalImageHeight && !infoPtr->bHeightSet) { infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr); bRecalcVisible = TRUE; }
if (infoPtr->normalImageWidth > MINIMUM_INDENT && infoPtr->normalImageWidth != infoPtr->uIndent) { infoPtr->uIndent = infoPtr->normalImageWidth; bRecalcVisible = TRUE; }
if (bRecalcVisible) TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root); TREEVIEW_UpdateScrollBars(infoPtr); }
TREEVIEW_Invalidate(infoPtr, NULL);
return (LRESULT)himlOld;}
static LRESULTTREEVIEW_SetItemHeight(TREEVIEW_INFO *infoPtr, INT newHeight){ INT prevHeight = infoPtr->uItemHeight;
TRACE("new=%d, old=%d\n", newHeight, prevHeight); if (newHeight == -1) { infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr); infoPtr->bHeightSet = FALSE; } else { if (newHeight == 0) newHeight = 1; infoPtr->uItemHeight = newHeight; infoPtr->bHeightSet = TRUE; }
/* Round down, unless we support odd ("non even") heights. */ if (!(infoPtr->dwStyle & TVS_NONEVENHEIGHT) && infoPtr->uItemHeight != 1) { infoPtr->uItemHeight &= ~1; TRACE("after rounding=%d\n", infoPtr->uItemHeight); }
if (infoPtr->uItemHeight != prevHeight) { TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL); TREEVIEW_UpdateScrollBars(infoPtr); TREEVIEW_Invalidate(infoPtr, NULL); }
return prevHeight;}
static LRESULTTREEVIEW_GetItemHeight(const TREEVIEW_INFO *infoPtr){ TRACE("\n"); return infoPtr->uItemHeight;}
static LRESULTTREEVIEW_GetFont(const TREEVIEW_INFO *infoPtr){ TRACE("%p\n", infoPtr->hFont); return (LRESULT)infoPtr->hFont;}
static INT CALLBACKTREEVIEW_ResetTextWidth(LPVOID pItem, LPVOID unused){ (void)unused;
((TREEVIEW_ITEM *)pItem)->textWidth = 0;
return 1;}
static LRESULTTREEVIEW_SetFont(TREEVIEW_INFO *infoPtr, HFONT hFont, BOOL bRedraw){ UINT uHeight = infoPtr->uItemHeight;
TRACE("%p %i\n", hFont, bRedraw);
infoPtr->hFont = hFont ? hFont : infoPtr->hDefaultFont;
DeleteObject(infoPtr->hBoldFont); DeleteObject(infoPtr->hUnderlineFont); DeleteObject(infoPtr->hBoldUnderlineFont); infoPtr->hBoldFont = TREEVIEW_CreateBoldFont(infoPtr->hFont); infoPtr->hUnderlineFont = TREEVIEW_CreateUnderlineFont(infoPtr->hFont); infoPtr->hBoldUnderlineFont = TREEVIEW_CreateBoldUnderlineFont(infoPtr->hFont);
if (!infoPtr->bHeightSet) infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
if (uHeight != infoPtr->uItemHeight) TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
DPA_EnumCallback(infoPtr->items, TREEVIEW_ResetTextWidth, 0);
TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root); TREEVIEW_UpdateScrollBars(infoPtr);
if (bRedraw) TREEVIEW_Invalidate(infoPtr, NULL);
return 0;}
static LRESULTTREEVIEW_GetLineColor(const TREEVIEW_INFO *infoPtr){ TRACE("\n"); return (LRESULT)infoPtr->clrLine;}
static LRESULTTREEVIEW_SetLineColor(TREEVIEW_INFO *infoPtr, COLORREF color){ COLORREF prevColor = infoPtr->clrLine;
TRACE("\n"); infoPtr->clrLine = color; return (LRESULT)prevColor;}
static LRESULTTREEVIEW_GetTextColor(const TREEVIEW_INFO *infoPtr){ TRACE("\n"); return (LRESULT)infoPtr->clrText;}
static LRESULTTREEVIEW_SetTextColor(TREEVIEW_INFO *infoPtr, COLORREF color){ COLORREF prevColor = infoPtr->clrText;
TRACE("\n"); infoPtr->clrText = color;
if (infoPtr->clrText != prevColor) TREEVIEW_Invalidate(infoPtr, NULL);
return (LRESULT)prevColor;}
static LRESULTTREEVIEW_GetBkColor(const TREEVIEW_INFO *infoPtr){ TRACE("\n"); return (LRESULT)infoPtr->clrBk;}
static LRESULTTREEVIEW_SetBkColor(TREEVIEW_INFO *infoPtr, COLORREF newColor){ COLORREF prevColor = infoPtr->clrBk;
TRACE("\n"); infoPtr->clrBk = newColor;
if (newColor != prevColor) TREEVIEW_Invalidate(infoPtr, NULL);
return (LRESULT)prevColor;}
static LRESULTTREEVIEW_GetInsertMarkColor(const TREEVIEW_INFO *infoPtr){ TRACE("\n"); return (LRESULT)infoPtr->clrInsertMark;}
static LRESULTTREEVIEW_SetInsertMarkColor(TREEVIEW_INFO *infoPtr, COLORREF color){ COLORREF prevColor = infoPtr->clrInsertMark;
TRACE("0x%08x\n", color); infoPtr->clrInsertMark = color;
return (LRESULT)prevColor;}
static LRESULTTREEVIEW_SetInsertMark(TREEVIEW_INFO *infoPtr, BOOL wParam, HTREEITEM item){ TRACE("%d %p\n", wParam, item);
if (!TREEVIEW_ValidItem(infoPtr, item)) return 0;
infoPtr->insertBeforeorAfter = wParam; infoPtr->insertMarkItem = item;
TREEVIEW_Invalidate(infoPtr, NULL);
return 1;}
/************************************************************************ * Some serious braindamage here. lParam is a pointer to both the * input HTREEITEM and the output RECT. */static LRESULTTREEVIEW_GetItemRect(const TREEVIEW_INFO *infoPtr, BOOL fTextRect, LPRECT lpRect){ TREEVIEW_ITEM *item; const HTREEITEM *pItem = (HTREEITEM *)lpRect;
TRACE("\n");
if (pItem == NULL) return FALSE;
item = *pItem; if (!TREEVIEW_ValidItem(infoPtr, item) || !ISVISIBLE(item)) return FALSE;
/* * If wParam is TRUE return the text size otherwise return * the whole item size */ if (fTextRect) { /* Windows does not send TVN_GETDISPINFO here. */
lpRect->top = item->rect.top; lpRect->bottom = item->rect.bottom;
lpRect->left = item->textOffset; if (!item->textWidth) TREEVIEW_ComputeTextWidth(infoPtr, item, 0);
lpRect->right = item->textOffset + item->textWidth + 4; } else { *lpRect = item->rect; }
TRACE("%s [%s]\n", fTextRect ? "text" : "item", wine_dbgstr_rect(lpRect));
return TRUE;}
static inline LRESULTTREEVIEW_GetVisibleCount(const TREEVIEW_INFO *infoPtr){ /* Surprise! This does not take integral height into account. */ TRACE("client=%d, item=%d\n", infoPtr->clientHeight, infoPtr->uItemHeight); return infoPtr->clientHeight / infoPtr->uItemHeight;}
static LRESULTTREEVIEW_GetItemT(const TREEVIEW_INFO *infoPtr, LPTVITEMEXW tvItem, BOOL isW){ TREEVIEW_ITEM *item = tvItem->hItem;
if (!TREEVIEW_ValidItem(infoPtr, item)) { BOOL valid_item = FALSE; if (!item) return FALSE;
__TRY { infoPtr = item->infoPtr; TRACE("got item from different tree %p, called from %p\n", item->infoPtr, infoPtr); valid_item = TREEVIEW_ValidItem(infoPtr, item); } __EXCEPT_PAGE_FAULT { } __ENDTRY if (!valid_item) return FALSE; }
TREEVIEW_UpdateDispInfo(infoPtr, item, tvItem->mask);
if (tvItem->mask & TVIF_CHILDREN) { if (item->cChildren==I_CHILDRENCALLBACK) FIXME("I_CHILDRENCALLBACK not supported\n"); tvItem->cChildren = item->cChildren; }
if (tvItem->mask & TVIF_HANDLE) tvItem->hItem = item;
if (tvItem->mask & TVIF_IMAGE) tvItem->iImage = item->iImage;
if (tvItem->mask & TVIF_INTEGRAL) tvItem->iIntegral = item->iIntegral;
/* undocumented: (mask & TVIF_PARAM) ignored and lParam is always set */ tvItem->lParam = item->lParam;
if (tvItem->mask & TVIF_SELECTEDIMAGE) tvItem->iSelectedImage = item->iSelectedImage;
if (tvItem->mask & TVIF_EXPANDEDIMAGE) tvItem->iExpandedImage = item->iExpandedImage;
/* undocumented: stateMask and (state & TVIF_STATE) ignored, so state is always set */ tvItem->state = item->state;
if (tvItem->mask & TVIF_TEXT) { if (item->pszText == NULL) { if (tvItem->cchTextMax > 0) tvItem->pszText[0] = '\0'; } else if (isW) { if (item->pszText == LPSTR_TEXTCALLBACKW) { tvItem->pszText = LPSTR_TEXTCALLBACKW; FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n"); } else { lstrcpynW(tvItem->pszText, item->pszText, tvItem->cchTextMax); } } else { if (item->pszText == LPSTR_TEXTCALLBACKW) { tvItem->pszText = (LPWSTR)LPSTR_TEXTCALLBACKA; FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n"); } else { WideCharToMultiByte(CP_ACP, 0, item->pszText, -1, (LPSTR)tvItem->pszText, tvItem->cchTextMax, NULL, NULL); } } }
if (tvItem->mask & TVIF_STATEEX) { FIXME("Extended item state not supported, returning 0.\n"); tvItem->uStateEx = 0; }
TRACE("item <%p>, txt %p, img %d, mask 0x%x\n", item, tvItem->pszText, tvItem->iImage, tvItem->mask);
return TRUE;}
/* Beware MSDN Library Visual Studio 6.0. It says -1 on failure, 0 on success, * which is wrong. */static LRESULTTREEVIEW_SetItemT(TREEVIEW_INFO *infoPtr, const TVITEMEXW *tvItem, BOOL isW){ TREEVIEW_ITEM *item; TREEVIEW_ITEM originalItem;
item = tvItem->hItem;
TRACE("item %d, mask 0x%x\n", TREEVIEW_GetItemIndex(infoPtr, item), tvItem->mask);
if (!TREEVIEW_ValidItem(infoPtr, item)) return FALSE;
/* Store the original item values. Text buffer will be freed in TREEVIEW_DoSetItemT() below. */ originalItem = *item;
if (!TREEVIEW_DoSetItemT(infoPtr, item, tvItem, isW)) return FALSE;
/* If the text or TVIS_BOLD was changed, and it is visible, recalculate. */ if ((tvItem->mask & TVIF_TEXT || (tvItem->mask & TVIF_STATE && tvItem->stateMask & TVIS_BOLD)) && ISVISIBLE(item)) { TREEVIEW_UpdateDispInfo(infoPtr, item, TVIF_TEXT); TREEVIEW_ComputeTextWidth(infoPtr, item, 0); }
if (tvItem->mask != 0 && ISVISIBLE(item)) { /* The refresh updates everything, but we can't wait until then. */ TREEVIEW_ComputeItemInternalMetrics(infoPtr, item);
/* if any of the item's values changed and it's not a callback, redraw the item */ if (item_changed(&originalItem, item, tvItem)) { if (tvItem->mask & TVIF_INTEGRAL) { TREEVIEW_RecalculateVisibleOrder(infoPtr, item); TREEVIEW_UpdateScrollBars(infoPtr);
TREEVIEW_Invalidate(infoPtr, NULL); } else { TREEVIEW_UpdateScrollBars(infoPtr); TREEVIEW_Invalidate(infoPtr, item); } } }
return TRUE;}
static LRESULTTREEVIEW_GetItemState(const TREEVIEW_INFO *infoPtr, HTREEITEM item, UINT mask){ TRACE("\n");
if (!item || !TREEVIEW_ValidItem(infoPtr, item)) return 0;
return (item->state & mask);}
static LRESULTTREEVIEW_GetNextItem(const TREEVIEW_INFO *infoPtr, UINT which, HTREEITEM item){ TREEVIEW_ITEM *retval;
retval = 0;
/* handle all the global data here */ switch (which) { case TVGN_CHILD: /* Special case: child of 0 is root */ if (item) break; /* fall through */ case TVGN_ROOT: retval = infoPtr->root->firstChild; break;
case TVGN_CARET: retval = infoPtr->selectedItem; break;
case TVGN_FIRSTVISIBLE: retval = infoPtr->firstVisible; break;
case TVGN_DROPHILITE: retval = infoPtr->dropItem; break;
case TVGN_LASTVISIBLE: retval = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root); break; }
if (retval) { TRACE("flags:0x%x, returns %p\n", which, retval); return (LRESULT)retval; }
if (item == TVI_ROOT) item = infoPtr->root;
if (!TREEVIEW_ValidItem(infoPtr, item)) return FALSE;
switch (which) { case TVGN_NEXT: retval = item->nextSibling; break; case TVGN_PREVIOUS: retval = item->prevSibling; break; case TVGN_PARENT: retval = (item->parent != infoPtr->root) ? item->parent : NULL; break; case TVGN_CHILD: retval = item->firstChild; break; case TVGN_NEXTVISIBLE: retval = TREEVIEW_GetNextListItem(infoPtr, item); break; case TVGN_PREVIOUSVISIBLE: retval = TREEVIEW_GetPrevListItem(infoPtr, item); break; default: TRACE("Unknown msg 0x%x, item %p\n", which, item); break; }
TRACE("flags: 0x%x, item %p;returns %p\n", which, item, retval); return (LRESULT)retval;}
static LRESULTTREEVIEW_GetCount(const TREEVIEW_INFO *infoPtr){ TRACE(" %d\n", infoPtr->uNumItems); return (LRESULT)infoPtr->uNumItems;}
#ifdef __REACTOS__static LRESULTTREEVIEW_SelectItem(TREEVIEW_INFO *infoPtr, INT wParam, HTREEITEM item);#endif
#ifdef __REACTOS__static VOIDTREEVIEW_ToggleItemState(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)#elsestatic VOIDTREEVIEW_ToggleItemState(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)#endif{ if (infoPtr->dwStyle & TVS_CHECKBOXES) { static const unsigned int state_table[] = { 0, 2, 1 };
unsigned int state;
state = STATEIMAGEINDEX(item->state); TRACE("state: 0x%x\n", state); item->state &= ~TVIS_STATEIMAGEMASK;
if (state < 3) state = state_table[state];
item->state |= INDEXTOSTATEIMAGEMASK(state);
TRACE("state: 0x%x\n", state);#ifdef __REACTOS__ TREEVIEW_SelectItem(infoPtr, TVGN_CARET, item);#endif TREEVIEW_Invalidate(infoPtr, item); }}
/* Painting *************************************************************/
/* Draw the lines and expand button for an item. Also draws one section * of the line from item's parent to item's parent's next sibling. */static voidTREEVIEW_DrawItemLines(const TREEVIEW_INFO *infoPtr, HDC hdc, const TREEVIEW_ITEM *item){ LONG centerx, centery; BOOL lar = ((infoPtr->dwStyle & (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS)) > TVS_LINESATROOT); HBRUSH hbr, hbrOld; COLORREF clrBk = GETBKCOLOR(infoPtr->clrBk);
if (!lar && item->iLevel == 0) return;
hbr = CreateSolidBrush(clrBk); hbrOld = SelectObject(hdc, hbr);
centerx = (item->linesOffset + item->stateOffset) / 2; centery = (item->rect.top + item->rect.bottom) / 2;
if (infoPtr->dwStyle & TVS_HASLINES) { HPEN hOldPen, hNewPen; HTREEITEM parent; LOGBRUSH lb;
/* Get a dotted grey pen */ lb.lbStyle = BS_SOLID; lb.lbColor = GETLINECOLOR(infoPtr->clrLine); hNewPen = ExtCreatePen(PS_COSMETIC|PS_ALTERNATE, 1, &lb, 0, NULL); hOldPen = SelectObject(hdc, hNewPen);
/* Make sure the center is on a dot (using +2 instead * of +1 gives us pixel-by-pixel compat with native) */ centery = (centery + 2) & ~1;
MoveToEx(hdc, item->stateOffset, centery, NULL); LineTo(hdc, centerx - 1, centery);
if (item->prevSibling || item->parent != infoPtr->root) { MoveToEx(hdc, centerx, item->rect.top, NULL); LineTo(hdc, centerx, centery); }
if (item->nextSibling) { MoveToEx(hdc, centerx, centery, NULL); LineTo(hdc, centerx, item->rect.bottom + 1); }
/* Draw the line from our parent to its next sibling. */ parent = item->parent; while (parent != infoPtr->root) { int pcenterx = (parent->linesOffset + parent->stateOffset) / 2;
if (parent->nextSibling /* skip top-levels unless TVS_LINESATROOT */ && parent->stateOffset > parent->linesOffset) { MoveToEx(hdc, pcenterx, item->rect.top, NULL); LineTo(hdc, pcenterx, item->rect.bottom + 1); }
parent = parent->parent; }
SelectObject(hdc, hOldPen); DeleteObject(hNewPen); }
/* * Display the (+/-) signs */
if (infoPtr->dwStyle & TVS_HASBUTTONS) { if (item->cChildren) { HTHEME theme = GetWindowTheme(infoPtr->hwnd); if (theme) { RECT glyphRect = item->rect; glyphRect.left = item->linesOffset; glyphRect.right = item->stateOffset; DrawThemeBackground (theme, hdc, TVP_GLYPH, (item->state & TVIS_EXPANDED) ? GLPS_OPENED : GLPS_CLOSED, &glyphRect, NULL); } else { LONG height = item->rect.bottom - item->rect.top; LONG width = item->stateOffset - item->linesOffset; LONG rectsize = min(height, width) / 4; /* plussize = ceil(rectsize * 3/4) */ LONG plussize = (rectsize + 1) * 3 / 4;
HPEN new_pen = CreatePen(PS_SOLID, 0, GETLINECOLOR(infoPtr->clrLine)); HPEN old_pen = SelectObject(hdc, new_pen);
Rectangle(hdc, centerx - rectsize - 1, centery - rectsize - 1, centerx + rectsize + 2, centery + rectsize + 2);
SelectObject(hdc, old_pen); DeleteObject(new_pen);
/* draw +/- signs with current text color */ new_pen = CreatePen(PS_SOLID, 0, GETTXTCOLOR(infoPtr->clrText)); old_pen = SelectObject(hdc, new_pen);
if (height < 18 || width < 18) { MoveToEx(hdc, centerx - plussize + 1, centery, NULL); LineTo(hdc, centerx + plussize, centery); if (!(item->state & TVIS_EXPANDED) || (item->state & TVIS_EXPANDPARTIAL)) { MoveToEx(hdc, centerx, centery - plussize + 1, NULL); LineTo(hdc, centerx, centery + plussize); } } else { Rectangle(hdc, centerx - plussize + 1, centery - 1, centerx + plussize, centery + 2);
if (!(item->state & TVIS_EXPANDED) || (item->state & TVIS_EXPANDPARTIAL)) { Rectangle(hdc, centerx - 1, centery - plussize + 1, centerx + 2, centery + plussize); SetPixel(hdc, centerx - 1, centery, clrBk); SetPixel(hdc, centerx + 1, centery, clrBk); } }
SelectObject(hdc, old_pen); DeleteObject(new_pen); } } } SelectObject(hdc, hbrOld); DeleteObject(hbr);}
static voidTREEVIEW_DrawItem(const TREEVIEW_INFO *infoPtr, HDC hdc, TREEVIEW_ITEM *item){ INT cditem; HFONT hOldFont; COLORREF oldTextColor, oldTextBkColor; int centery; BOOL inFocus = (GetFocus() == infoPtr->hwnd); NMTVCUSTOMDRAW nmcdhdr;
TREEVIEW_UpdateDispInfo(infoPtr, item, CALLBACK_MASK_ALL);
/* - If item is drop target or it is selected and window is in focus - * use blue background (COLOR_HIGHLIGHT). * - If item is selected, window is not in focus, but it has style * TVS_SHOWSELALWAYS - use grey background (COLOR_BTNFACE) * - Otherwise - use background color */ if ((item->state & TVIS_DROPHILITED) || ((item == infoPtr->focusedItem) && !(item->state & TVIS_SELECTED)) || ((item->state & TVIS_SELECTED) && (!infoPtr->focusedItem || item == infoPtr->focusedItem) && (inFocus || (infoPtr->dwStyle & TVS_SHOWSELALWAYS)))) { if ((item->state & TVIS_DROPHILITED) || inFocus) { nmcdhdr.clrTextBk = comctl32_color.clrHighlight; nmcdhdr.clrText = comctl32_color.clrHighlightText; } else { nmcdhdr.clrTextBk = comctl32_color.clrBtnFace; nmcdhdr.clrText = GETTXTCOLOR(infoPtr->clrText); } } else { nmcdhdr.clrTextBk = GETBKCOLOR(infoPtr->clrBk); if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (item == infoPtr->hotItem)) nmcdhdr.clrText = comctl32_color.clrHighlight; else nmcdhdr.clrText = GETTXTCOLOR(infoPtr->clrText); }
hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, item)); oldTextColor = SetTextColor(hdc, nmcdhdr.clrText); oldTextBkColor = SetBkColor(hdc, nmcdhdr.clrTextBk);
/* The custom draw handler can query the text rectangle, * so get ready. */ /* should already be known, set to 0 when changed */ if (!item->textWidth) TREEVIEW_ComputeTextWidth(infoPtr, item, hdc);
cditem = 0;
if (infoPtr->cdmode & CDRF_NOTIFYITEMDRAW) { cditem = TREEVIEW_SendCustomDrawItemNotify (infoPtr, hdc, item, CDDS_ITEMPREPAINT, &nmcdhdr); TRACE("prepaint:cditem-app returns 0x%x\n", cditem);
if (cditem & CDRF_SKIPDEFAULT) { SelectObject(hdc, hOldFont); return; } }
if (cditem & CDRF_NEWFONT) TREEVIEW_ComputeTextWidth(infoPtr, item, hdc);
if (TREEVIEW_IsFullRowSelect(infoPtr)) { HBRUSH brush = CreateSolidBrush(nmcdhdr.clrTextBk); FillRect(hdc, &item->rect, brush); DeleteObject(brush); }
TREEVIEW_DrawItemLines(infoPtr, hdc, item);
/* reset colors. Custom draw handler can change them */ SetTextColor(hdc, nmcdhdr.clrText); SetBkColor(hdc, nmcdhdr.clrTextBk);
centery = (item->rect.top + item->rect.bottom) / 2;
/* * Display the images associated with this item */ { INT imageIndex;
/* State images are displayed to the left of the Normal image * image number is in state; zero should be `display no image'. */ imageIndex = STATEIMAGEINDEX(item->state);
if (infoPtr->himlState && imageIndex) { ImageList_Draw(infoPtr->himlState, imageIndex, hdc, item->stateOffset, centery - infoPtr->stateImageHeight / 2, ILD_NORMAL); }
/* Now, draw the normal image; can be either selected, * non-selected or expanded image. */
if ((item->state & TVIS_SELECTED) && (item->iSelectedImage >= 0)) { /* The item is currently selected */ imageIndex = item->iSelectedImage; } else if ((item->state & TVIS_EXPANDED) && (item->iExpandedImage != (WORD)I_IMAGENONE)) { /* The item is currently not selected but expanded */ imageIndex = item->iExpandedImage; } else { /* The item is not selected and not expanded */ imageIndex = item->iImage; }
if (infoPtr->himlNormal) { UINT style = item->state & TVIS_CUT ? ILD_SELECTED : ILD_NORMAL;
style |= item->state & TVIS_OVERLAYMASK;
ImageList_DrawEx(infoPtr->himlNormal, imageIndex, hdc, item->imageOffset, centery - infoPtr->normalImageHeight / 2, 0, 0, TREEVIEW_IsFullRowSelect(infoPtr) ? nmcdhdr.clrTextBk : infoPtr->clrBk, item->state & TVIS_CUT ? GETBKCOLOR(infoPtr->clrBk) : CLR_DEFAULT, style); } }
/* * Display the text associated with this item */
/* Don't paint item's text if it's being edited */ if (!infoPtr->hwndEdit || (infoPtr->selectedItem != item)) { if (item->pszText) { RECT rcText; UINT align; SIZE sz;
rcText.top = item->rect.top; rcText.bottom = item->rect.bottom; rcText.left = item->textOffset; rcText.right = rcText.left + item->textWidth + 4;
TRACE("drawing text %s at (%s)\n", debugstr_w(item->pszText), wine_dbgstr_rect(&rcText));
/* Draw it */ GetTextExtentPoint32W(hdc, item->pszText, lstrlenW(item->pszText), &sz);
align = SetTextAlign(hdc, TA_LEFT | TA_TOP); ExtTextOutW(hdc, rcText.left + 2, (rcText.top + rcText.bottom - sz.cy) / 2, ETO_CLIPPED | ETO_OPAQUE, &rcText, item->pszText, lstrlenW(item->pszText), NULL); SetTextAlign(hdc, align);
/* Draw focus box around the selected item */ if ((item == infoPtr->selectedItem) && inFocus) { DrawFocusRect(hdc,&rcText); } } }
/* Draw insertion mark if necessary */
if (infoPtr->insertMarkItem) TRACE("item:%d,mark:%p\n", TREEVIEW_GetItemIndex(infoPtr, item), infoPtr->insertMarkItem);
if (item == infoPtr->insertMarkItem) { HPEN hNewPen, hOldPen; int offset; int left, right;
hNewPen = CreatePen(PS_SOLID, 2, GETINSCOLOR(infoPtr->clrInsertMark)); hOldPen = SelectObject(hdc, hNewPen);
if (infoPtr->insertBeforeorAfter) offset = item->rect.bottom - 1; else offset = item->rect.top + 1;
left = item->textOffset - 2; right = item->textOffset + item->textWidth + 2;
MoveToEx(hdc, left, offset - 3, NULL); LineTo(hdc, left, offset + 4);
MoveToEx(hdc, left, offset, NULL); LineTo(hdc, right + 1, offset);
MoveToEx(hdc, right, offset + 3, NULL); LineTo(hdc, right, offset - 4);
SelectObject(hdc, hOldPen); DeleteObject(hNewPen); }
/* Restore the hdc state */ SetTextColor(hdc, oldTextColor); SetBkColor(hdc, oldTextBkColor); SelectObject(hdc, hOldFont);
if (cditem & CDRF_NOTIFYPOSTPAINT) { cditem = TREEVIEW_SendCustomDrawItemNotify (infoPtr, hdc, item, CDDS_ITEMPOSTPAINT, &nmcdhdr); TRACE("postpaint:cditem-app returns 0x%x\n", cditem); }}
/* Computes treeHeight and treeWidth and updates the scroll bars. */static voidTREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr){ TREEVIEW_ITEM *item; HWND hwnd = infoPtr->hwnd; BOOL vert = FALSE; BOOL horz = FALSE; SCROLLINFO si; LONG scrollX = infoPtr->scrollX;
infoPtr->treeWidth = 0; infoPtr->treeHeight = 0;
/* We iterate through all visible items in order to get the tree height * and width */ item = infoPtr->root->firstChild;
while (item != NULL) { if (ISVISIBLE(item)) { /* actually we draw text at textOffset + 2 */ if (2+item->textOffset+item->textWidth > infoPtr->treeWidth) infoPtr->treeWidth = item->textOffset+item->textWidth+2;
/* This is scroll-adjusted, but we fix this below. */ infoPtr->treeHeight = item->rect.bottom; }
item = TREEVIEW_GetNextListItem(infoPtr, item); }
/* Fix the scroll adjusted treeHeight and treeWidth. */ if (infoPtr->root->firstChild) infoPtr->treeHeight -= infoPtr->root->firstChild->rect.top;
infoPtr->treeWidth += infoPtr->scrollX;
if (infoPtr->dwStyle & TVS_NOSCROLL) return;
/* Adding one scroll bar may take up enough space that it forces us * to add the other as well. */ if (infoPtr->treeHeight > infoPtr->clientHeight) { vert = TRUE;
if (infoPtr->treeWidth > infoPtr->clientWidth - GetSystemMetrics(SM_CXVSCROLL)) horz = TRUE; } else if (infoPtr->treeWidth > infoPtr->clientWidth || infoPtr->scrollX > 0) horz = TRUE;
if (!vert && horz && infoPtr->treeHeight > infoPtr->clientHeight - GetSystemMetrics(SM_CYVSCROLL)) vert = TRUE;
if (horz && (infoPtr->dwStyle & TVS_NOHSCROLL)) horz = FALSE;
si.cbSize = sizeof(SCROLLINFO); si.fMask = SIF_POS|SIF_RANGE|SIF_PAGE; si.nMin = 0;
if (vert) { si.nPage = TREEVIEW_GetVisibleCount(infoPtr); if ( si.nPage && NULL != infoPtr->firstVisible) { si.nPos = infoPtr->firstVisible->visibleOrder; si.nMax = infoPtr->maxVisibleOrder - 1;
SetScrollInfo(hwnd, SB_VERT, &si, TRUE);
if (!(infoPtr->uInternalStatus & TV_VSCROLL)) ShowScrollBar(hwnd, SB_VERT, TRUE); infoPtr->uInternalStatus |= TV_VSCROLL; } else { if (infoPtr->uInternalStatus & TV_VSCROLL) ShowScrollBar(hwnd, SB_VERT, FALSE); infoPtr->uInternalStatus &= ~TV_VSCROLL; } } else { if (infoPtr->uInternalStatus & TV_VSCROLL) ShowScrollBar(hwnd, SB_VERT, FALSE); infoPtr->uInternalStatus &= ~TV_VSCROLL; }
if (horz) { si.nPage = infoPtr->clientWidth; si.nPos = infoPtr->scrollX; si.nMax = infoPtr->treeWidth - 1;
if (si.nPos > si.nMax - max( si.nPage-1, 0 )) { si.nPos = si.nMax - max( si.nPage-1, 0 ); scrollX = si.nPos; }
if (!(infoPtr->uInternalStatus & TV_HSCROLL)) ShowScrollBar(hwnd, SB_HORZ, TRUE); infoPtr->uInternalStatus |= TV_HSCROLL;
SetScrollInfo(hwnd, SB_HORZ, &si, TRUE); TREEVIEW_HScroll(infoPtr, MAKEWPARAM(SB_THUMBPOSITION, scrollX)); } else { if (infoPtr->uInternalStatus & TV_HSCROLL) ShowScrollBar(hwnd, SB_HORZ, FALSE); infoPtr->uInternalStatus &= ~TV_HSCROLL;
scrollX = 0; if (infoPtr->scrollX != 0) { TREEVIEW_HScroll(infoPtr, MAKEWPARAM(SB_THUMBPOSITION, scrollX)); } }
if (!horz) infoPtr->uInternalStatus &= ~TV_HSCROLL;}
static voidTREEVIEW_FillBkgnd(const TREEVIEW_INFO *infoPtr, HDC hdc, const RECT *rc){ HBRUSH hBrush; COLORREF clrBk = GETBKCOLOR(infoPtr->clrBk);
hBrush = CreateSolidBrush(clrBk); FillRect(hdc, rc, hBrush); DeleteObject(hBrush);}
/* CtrlSpy doesn't mention this, but CorelDRAW's object manager needs it. */static LRESULTTREEVIEW_EraseBackground(const TREEVIEW_INFO *infoPtr, HDC hdc){ RECT rect;
TRACE("%p\n", infoPtr);
GetClientRect(infoPtr->hwnd, &rect); TREEVIEW_FillBkgnd(infoPtr, hdc, &rect);
return 1;}
static voidTREEVIEW_Refresh(TREEVIEW_INFO *infoPtr, HDC hdc, const RECT *rc){ HWND hwnd = infoPtr->hwnd; RECT rect = *rc; TREEVIEW_ITEM *item;
if (infoPtr->clientHeight == 0 || infoPtr->clientWidth == 0) { TRACE("empty window\n"); return; }
infoPtr->cdmode = TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_PREPAINT, hdc, rect);
if (infoPtr->cdmode == CDRF_SKIPDEFAULT) { ReleaseDC(hwnd, hdc); return; }
for (item = infoPtr->root->firstChild; item != NULL; item = TREEVIEW_GetNextListItem(infoPtr, item)) { if (ISVISIBLE(item)) { /* Avoid unneeded calculations */ if (item->rect.top > rect.bottom) break; if (item->rect.bottom < rect.top) continue;
TREEVIEW_DrawItem(infoPtr, hdc, item); } }
// // FIXME: This is correct, but is causes and infinite loop of WM_PAINT // messages, resulting in continuous painting of the scroll bar in reactos. // Comment out until the real bug is found. CORE-4912 //#ifndef __REACTOS__ TREEVIEW_UpdateScrollBars(infoPtr);#endif
if (infoPtr->cdmode & CDRF_NOTIFYPOSTPAINT) infoPtr->cdmode = TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_POSTPAINT, hdc, rect);}
static inline voidTREEVIEW_InvalidateItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item){ if (item) InvalidateRect(infoPtr->hwnd, &item->rect, TRUE);}
static voidTREEVIEW_Invalidate(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item){ if (item) InvalidateRect(infoPtr->hwnd, &item->rect, TRUE); else InvalidateRect(infoPtr->hwnd, NULL, TRUE);}
static voidTREEVIEW_InitCheckboxes(TREEVIEW_INFO *infoPtr){ RECT rc; HBITMAP hbm, hbmOld; HDC hdc, hdcScreen; int nIndex;
infoPtr->himlState = ImageList_Create(16, 16, ILC_COLOR | ILC_MASK, 3, 0);
hdcScreen = GetDC(0);
hdc = CreateCompatibleDC(hdcScreen); hbm = CreateCompatibleBitmap(hdcScreen, 48, 16); hbmOld = SelectObject(hdc, hbm);
SetRect(&rc, 0, 0, 48, 16); FillRect(hdc, &rc, (HBRUSH)(COLOR_WINDOW+1));
SetRect(&rc, 18, 2, 30, 14); DrawFrameControl(hdc, &rc, DFC_BUTTON, DFCS_BUTTONCHECK|DFCS_FLAT);
SetRect(&rc, 34, 2, 46, 14); DrawFrameControl(hdc, &rc, DFC_BUTTON, DFCS_BUTTONCHECK|DFCS_FLAT|DFCS_CHECKED);
SelectObject(hdc, hbmOld); nIndex = ImageList_AddMasked(infoPtr->himlState, hbm, comctl32_color.clrWindow); TRACE("checkbox index %d\n", nIndex);
DeleteObject(hbm); DeleteDC(hdc); ReleaseDC(0, hdcScreen);
infoPtr->stateImageWidth = 16; infoPtr->stateImageHeight = 16;}
static voidTREEVIEW_ResetImageStateIndex(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item){ TREEVIEW_ITEM *child = item->firstChild;
item->state &= ~TVIS_STATEIMAGEMASK; item->state |= INDEXTOSTATEIMAGEMASK(1);
while (child) { TREEVIEW_ITEM *next = child->nextSibling; TREEVIEW_ResetImageStateIndex(infoPtr, child); child = next; }}
static LRESULTTREEVIEW_Paint(TREEVIEW_INFO *infoPtr, HDC hdc_ref){ HDC hdc; PAINTSTRUCT ps; RECT rc;
TRACE("(%p %p)\n", infoPtr, hdc_ref);
if ((infoPtr->dwStyle & TVS_CHECKBOXES) && !infoPtr->himlState) { TREEVIEW_InitCheckboxes(infoPtr); TREEVIEW_ResetImageStateIndex(infoPtr, infoPtr->root);
TREEVIEW_EndEditLabelNow(infoPtr, TRUE); TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root); TREEVIEW_UpdateScrollBars(infoPtr); TREEVIEW_Invalidate(infoPtr, NULL); }
if (hdc_ref) { hdc = hdc_ref; GetClientRect(infoPtr->hwnd, &rc); TREEVIEW_FillBkgnd(infoPtr, hdc, &rc); } else { hdc = BeginPaint(infoPtr->hwnd, &ps); rc = ps.rcPaint; if(ps.fErase) TREEVIEW_FillBkgnd(infoPtr, hdc, &rc); }
if(infoPtr->bRedraw) /* WM_SETREDRAW sets bRedraw */ TREEVIEW_Refresh(infoPtr, hdc, &rc);
if (!hdc_ref) EndPaint(infoPtr->hwnd, &ps);
return 0;}
static LRESULTTREEVIEW_PrintClient(TREEVIEW_INFO *infoPtr, HDC hdc, DWORD options){ FIXME("Partial Stub: (hdc=%p options=0x%08x)\n", hdc, options);
if ((options & PRF_CHECKVISIBLE) && !IsWindowVisible(infoPtr->hwnd)) return 0;
if (options & PRF_ERASEBKGND) TREEVIEW_EraseBackground(infoPtr, hdc);
if (options & PRF_CLIENT) { RECT rc; GetClientRect(infoPtr->hwnd, &rc); TREEVIEW_Refresh(infoPtr, hdc, &rc); }
return 0;}
/* Sorting **************************************************************/
/*************************************************************************** * Forward the DPA local callback to the treeview owner callback */static INT WINAPITREEVIEW_CallBackCompare(const TREEVIEW_ITEM *first, const TREEVIEW_ITEM *second, const TVSORTCB *pCallBackSort){ /* Forward the call to the client-defined callback */ return pCallBackSort->lpfnCompare(first->lParam, second->lParam, pCallBackSort->lParam);}
/*************************************************************************** * Treeview native sort routine: sort on item text. */static INT WINAPITREEVIEW_SortOnName(TREEVIEW_ITEM *first, TREEVIEW_ITEM *second, const TREEVIEW_INFO *infoPtr){ TREEVIEW_UpdateDispInfo(infoPtr, first, TVIF_TEXT); TREEVIEW_UpdateDispInfo(infoPtr, second, TVIF_TEXT);
if(first->pszText && second->pszText) return lstrcmpiW(first->pszText, second->pszText); else if(first->pszText) return -1; else if(second->pszText) return 1; else return 0;}
/* Returns the number of physical children belonging to item. */static INTTREEVIEW_CountChildren(const TREEVIEW_ITEM *item){ INT cChildren = 0; HTREEITEM hti;
for (hti = item->firstChild; hti != NULL; hti = hti->nextSibling) cChildren++;
return cChildren;}
/* Returns a DPA containing a pointer to each physical child of item in * sibling order. If item has no children, an empty DPA is returned. */static HDPATREEVIEW_BuildChildDPA(const TREEVIEW_ITEM *item){ HTREEITEM child;
HDPA list = DPA_Create(8); if (list == 0) return NULL;
for (child = item->firstChild; child != NULL; child = child->nextSibling) { if (DPA_InsertPtr(list, INT_MAX, child) == -1) { DPA_Destroy(list); return NULL; } }
return list;}
/*************************************************************************** * Setup the treeview structure with regards of the sort method * and sort the children of the TV item specified in lParam * fRecurse: currently unused. Should be zero. * parent: if pSort!=NULL, should equal pSort->hParent. * otherwise, item which child items are to be sorted. * pSort: sort method info. if NULL, sort on item text. * if non-NULL, sort on item's lParam content, and let the * application decide what that means. See also TVM_SORTCHILDRENCB. */
static LRESULTTREEVIEW_Sort(TREEVIEW_INFO *infoPtr, HTREEITEM parent, LPTVSORTCB pSort){ INT cChildren; PFNDPACOMPARE pfnCompare; LPARAM lpCompare;
/* undocumented feature: TVI_ROOT or NULL means `sort the whole tree' */ if (parent == TVI_ROOT || parent == NULL) parent = infoPtr->root;
/* Check for a valid handle to the parent item */ if (!TREEVIEW_ValidItem(infoPtr, parent)) { ERR("invalid item hParent=%p\n", parent); return FALSE; }
if (pSort) { pfnCompare = (PFNDPACOMPARE)TREEVIEW_CallBackCompare; lpCompare = (LPARAM)pSort; } else { pfnCompare = (PFNDPACOMPARE)TREEVIEW_SortOnName; lpCompare = (LPARAM)infoPtr; }
cChildren = TREEVIEW_CountChildren(parent);
/* Make sure there is something to sort */ if (cChildren > 1) { /* TREEVIEW_ITEM rechaining */ INT count = 0; HTREEITEM item = 0; HTREEITEM nextItem = 0; HTREEITEM prevItem = 0;
HDPA sortList = TREEVIEW_BuildChildDPA(parent);
if (sortList == NULL) return FALSE;
/* let DPA sort the list */ DPA_Sort(sortList, pfnCompare, lpCompare);
/* The order of DPA entries has been changed, so fixup the * nextSibling and prevSibling pointers. */
item = DPA_GetPtr(sortList, count++); while ((nextItem = DPA_GetPtr(sortList, count++)) != NULL) { /* link the two current item together */ item->nextSibling = nextItem; nextItem->prevSibling = item;
if (prevItem == NULL) { /* this is the first item, update the parent */ parent->firstChild = item; item->prevSibling = NULL; } else { /* fix the back chaining */ item->prevSibling = prevItem; }
/* get ready for the next one */ prevItem = item; item = nextItem; }
/* the last item is pointed to by item and never has a sibling */ item->nextSibling = NULL; parent->lastChild = item;
DPA_Destroy(sortList);
TREEVIEW_VerifyTree(infoPtr);
if (parent->state & TVIS_EXPANDED) { int visOrder = infoPtr->firstVisible->visibleOrder;
if (parent == infoPtr->root) TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL); else TREEVIEW_RecalculateVisibleOrder(infoPtr, parent);
if (TREEVIEW_IsChildOf(parent, infoPtr->firstVisible)) { TREEVIEW_ITEM *item;
for (item = infoPtr->root->firstChild; item != NULL; item = TREEVIEW_GetNextListItem(infoPtr, item)) { if (item->visibleOrder == visOrder) break; }
if (!item) item = parent->firstChild; TREEVIEW_SetFirstVisible(infoPtr, item, FALSE); }
TREEVIEW_Invalidate(infoPtr, NULL); }
return TRUE; } return FALSE;}
/*************************************************************************** * Setup the treeview structure with regards of the sort method * and sort the children of the TV item specified in lParam */static LRESULTTREEVIEW_SortChildrenCB(TREEVIEW_INFO *infoPtr, LPTVSORTCB pSort){ return TREEVIEW_Sort(infoPtr, pSort->hParent, pSort);}
/*************************************************************************** * Sort the children of the TV item specified in lParam. */static LRESULTTREEVIEW_SortChildren(TREEVIEW_INFO *infoPtr, LPARAM lParam){ return TREEVIEW_Sort(infoPtr, (HTREEITEM)lParam, NULL);}
/* Expansion/Collapse ***************************************************/
static BOOLTREEVIEW_SendExpanding(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item, UINT action){ return !TREEVIEW_SendTreeviewNotify(infoPtr, TVN_ITEMEXPANDINGW, action, TVIF_HANDLE | TVIF_STATE | TVIF_PARAM | TVIF_IMAGE | TVIF_SELECTEDIMAGE, 0, item);}
static VOIDTREEVIEW_SendExpanded(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item, UINT action){ TREEVIEW_SendTreeviewNotify(infoPtr, TVN_ITEMEXPANDEDW, action, TVIF_HANDLE | TVIF_STATE | TVIF_PARAM | TVIF_IMAGE | TVIF_SELECTEDIMAGE, 0, item);}
/* This corresponds to TVM_EXPAND with TVE_COLLAPSE. * bRemoveChildren corresponds to TVE_COLLAPSERESET. */static BOOLTREEVIEW_Collapse(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item, BOOL bRemoveChildren, BOOL bUser){ UINT action = TVE_COLLAPSE | (bRemoveChildren ? TVE_COLLAPSERESET : 0); BOOL bSetSelection, bSetFirstVisible; RECT scrollRect; LONG scrollDist = 0; TREEVIEW_ITEM *nextItem = NULL, *tmpItem; BOOL wasExpanded;
TRACE("TVE_COLLAPSE %p %s\n", item, TREEVIEW_ItemName(item));
if (!TREEVIEW_HasChildren(infoPtr, item)) return FALSE;
if (bUser) TREEVIEW_SendExpanding(infoPtr, item, action);
if (item->firstChild == NULL) return FALSE;
wasExpanded = (item->state & TVIS_EXPANDED) != 0; item->state &= ~TVIS_EXPANDED;
if (wasExpanded && bUser) TREEVIEW_SendExpanded(infoPtr, item, action);
bSetSelection = (infoPtr->selectedItem != NULL && TREEVIEW_IsChildOf(item, infoPtr->selectedItem));
bSetFirstVisible = (infoPtr->firstVisible != NULL && TREEVIEW_IsChildOf(item, infoPtr->firstVisible));
tmpItem = item; while (tmpItem) { if (tmpItem->nextSibling) { nextItem = tmpItem->nextSibling; break; } tmpItem = tmpItem->parent; }
if (nextItem) scrollDist = nextItem->rect.top;
if (bRemoveChildren) { INT old_cChildren = item->cChildren; TRACE("TVE_COLLAPSERESET\n"); item->state &= ~TVIS_EXPANDEDONCE; TREEVIEW_RemoveAllChildren(infoPtr, item); item->cChildren = old_cChildren; } if (!wasExpanded) return FALSE;
if (item->firstChild) { TREEVIEW_ITEM *i, *sibling;
sibling = TREEVIEW_GetNextListItem(infoPtr, item);
for (i = item->firstChild; i != sibling; i = TREEVIEW_GetNextListItem(infoPtr, i)) { i->visibleOrder = -1; } }
TREEVIEW_RecalculateVisibleOrder(infoPtr, item);
if (nextItem) scrollDist = -(scrollDist - nextItem->rect.top);
if (bSetSelection) { /* Don't call DoSelectItem, it sends notifications. */ if (TREEVIEW_ValidItem(infoPtr, infoPtr->selectedItem)) infoPtr->selectedItem->state &= ~TVIS_SELECTED; item->state |= TVIS_SELECTED; infoPtr->selectedItem = item; }
TREEVIEW_UpdateScrollBars(infoPtr);
scrollRect.left = 0; scrollRect.right = infoPtr->clientWidth; scrollRect.bottom = infoPtr->clientHeight;
if (nextItem) { scrollRect.top = nextItem->rect.top;
ScrollWindowEx (infoPtr->hwnd, 0, scrollDist, &scrollRect, &scrollRect, NULL, NULL, SW_ERASE | SW_INVALIDATE); TREEVIEW_Invalidate(infoPtr, item); } else { scrollRect.top = item->rect.top; InvalidateRect(infoPtr->hwnd, &scrollRect, TRUE); }
TREEVIEW_SetFirstVisible(infoPtr, bSetFirstVisible ? item : infoPtr->firstVisible, TRUE);
return wasExpanded;}
static BOOLTREEVIEW_Expand(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item, BOOL partial, BOOL user){ LONG scrollDist; LONG orgNextTop = 0; RECT scrollRect; TREEVIEW_ITEM *nextItem, *tmpItem; BOOL sendsNotifications;
TRACE("(%p, %p, partial=%d, %d)\n", infoPtr, item, partial, user);
if (!TREEVIEW_HasChildren(infoPtr, item)) return FALSE;
tmpItem = item; nextItem = NULL; while (tmpItem) { if (tmpItem->nextSibling) { nextItem = tmpItem->nextSibling; break; } tmpItem = tmpItem->parent; }
if (nextItem) orgNextTop = nextItem->rect.top;
TRACE("TVE_EXPAND %p %s\n", item, TREEVIEW_ItemName(item));
sendsNotifications = user || ((item->cChildren != 0) && !(item->state & TVIS_EXPANDEDONCE)); if (sendsNotifications) { if (!TREEVIEW_SendExpanding(infoPtr, item, TVE_EXPAND)) { TRACE(" TVN_ITEMEXPANDING returned TRUE, exiting...\n"); return FALSE; } } if (!item->firstChild) return FALSE;
item->state |= TVIS_EXPANDED;
if (partial) FIXME("TVE_EXPANDPARTIAL not implemented\n");
if (ISVISIBLE(item)) { TREEVIEW_RecalculateVisibleOrder(infoPtr, item); TREEVIEW_UpdateSubTree(infoPtr, item); TREEVIEW_UpdateScrollBars(infoPtr);
scrollRect.left = 0; scrollRect.bottom = infoPtr->treeHeight; scrollRect.right = infoPtr->clientWidth; if (nextItem) { scrollDist = nextItem->rect.top - orgNextTop; scrollRect.top = orgNextTop;
ScrollWindowEx (infoPtr->hwnd, 0, scrollDist, &scrollRect, NULL, NULL, NULL, SW_ERASE | SW_INVALIDATE); TREEVIEW_Invalidate (infoPtr, item); } else { scrollRect.top = item->rect.top; InvalidateRect(infoPtr->hwnd, &scrollRect, FALSE); }
/* Scroll up so that as many children as possible are visible. * This fails when expanding causes an HScroll bar to appear, but we * don't know that yet, so the last item is obscured. */ if (item->firstChild != NULL) { int nChildren = item->lastChild->visibleOrder - item->firstChild->visibleOrder + 1;
int visible_pos = item->visibleOrder - infoPtr->firstVisible->visibleOrder;
int rows_below = TREEVIEW_GetVisibleCount(infoPtr) - visible_pos - 1;
if (visible_pos > 0 && nChildren > rows_below) { int scroll = nChildren - rows_below;
if (scroll > visible_pos) scroll = visible_pos;
if (scroll > 0) { TREEVIEW_ITEM *newFirstVisible = TREEVIEW_GetListItem(infoPtr, infoPtr->firstVisible, scroll);
TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE); } } } }
if (sendsNotifications) { TREEVIEW_SendExpanded(infoPtr, item, TVE_EXPAND); item->state |= TVIS_EXPANDEDONCE; }
return TRUE;}
/* Handler for TVS_SINGLEEXPAND behaviour. Used on response to mouse messages and TVM_SELECTITEM.
selection - previously selected item, used to collapse a part of a tree item - new selected item*/static void TREEVIEW_SingleExpand(TREEVIEW_INFO *infoPtr, HTREEITEM selection, HTREEITEM item){ TREEVIEW_ITEM *prev, *curr;
if ((infoPtr->dwStyle & TVS_SINGLEEXPAND) == 0 || infoPtr->hwndEdit || !item) return;
TREEVIEW_SendTreeviewNotify(infoPtr, TVN_SINGLEEXPAND, TVC_UNKNOWN, TVIF_HANDLE | TVIF_PARAM, item, 0);
/* * Close the previous item and its ancestors as long as they are not * ancestors of the current item */ for (prev = selection; prev && TREEVIEW_ValidItem(infoPtr, prev); prev = prev->parent) { for (curr = item; curr && TREEVIEW_ValidItem(infoPtr, curr); curr = curr->parent) { if (curr == prev) goto finish; } TREEVIEW_Collapse(infoPtr, prev, FALSE, TRUE); }
finish: /* * Expand the current item */ TREEVIEW_Expand(infoPtr, item, FALSE, TRUE);}
static BOOLTREEVIEW_Toggle(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item, BOOL user){ TRACE("item=%p, user=%d\n", item, user);
if (item->state & TVIS_EXPANDED) return TREEVIEW_Collapse(infoPtr, item, FALSE, user); else return TREEVIEW_Expand(infoPtr, item, FALSE, user);}
static VOIDTREEVIEW_ExpandAll(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item){ TREEVIEW_Expand(infoPtr, item, FALSE, TRUE);
for (item = item->firstChild; item != NULL; item = item->nextSibling) { if (TREEVIEW_HasChildren(infoPtr, item)) TREEVIEW_ExpandAll(infoPtr, item); }}
/* Note:If the specified item is the child of a collapsed parent item, the parent's list of child items is (recursively) expanded to reveal the specified item. This is mentioned for TREEVIEW_SelectItem; don't know if it also applies here.*/
static LRESULTTREEVIEW_ExpandMsg(TREEVIEW_INFO *infoPtr, UINT flag, HTREEITEM item){ if (!TREEVIEW_ValidItem(infoPtr, item)) return 0;
TRACE("For (%s) item:%d, flags 0x%x, state:%d\n", TREEVIEW_ItemName(item), TREEVIEW_GetItemIndex(infoPtr, item), flag, item->state);
switch (flag & TVE_TOGGLE) { case TVE_COLLAPSE: return TREEVIEW_Collapse(infoPtr, item, flag & TVE_COLLAPSERESET, FALSE);
case TVE_EXPAND: return TREEVIEW_Expand(infoPtr, item, flag & TVE_EXPANDPARTIAL, FALSE);
case TVE_TOGGLE: return TREEVIEW_Toggle(infoPtr, item, FALSE);
default: return 0; }}
/* Hit-Testing **********************************************************/
static TREEVIEW_ITEM *TREEVIEW_HitTestPoint(const TREEVIEW_INFO *infoPtr, POINT pt){ TREEVIEW_ITEM *item; LONG row;
if (!infoPtr->firstVisible) return NULL;
row = pt.y / infoPtr->uItemHeight + infoPtr->firstVisible->visibleOrder;
for (item = infoPtr->firstVisible; item != NULL; item = TREEVIEW_GetNextListItem(infoPtr, item)) { if (row >= item->visibleOrder && row < item->visibleOrder + item->iIntegral) break; }
return item;}
static TREEVIEW_ITEM *TREEVIEW_HitTest(const TREEVIEW_INFO *infoPtr, LPTVHITTESTINFO lpht){ TREEVIEW_ITEM *item; RECT rect; UINT status; LONG x, y;
lpht->hItem = 0; GetClientRect(infoPtr->hwnd, &rect); status = 0; x = lpht->pt.x; y = lpht->pt.y;
if (x < rect.left) { status |= TVHT_TOLEFT; } else if (x > rect.right) { status |= TVHT_TORIGHT; }
if (y < rect.top) { status |= TVHT_ABOVE; } else if (y > rect.bottom) { status |= TVHT_BELOW; }
if (status) { lpht->flags = status; return NULL; }
item = TREEVIEW_HitTestPoint(infoPtr, lpht->pt); if (!item) { lpht->flags = TVHT_NOWHERE; return NULL; }
if (!item->textWidth) TREEVIEW_ComputeTextWidth(infoPtr, item, 0);
if (x >= item->textOffset + item->textWidth) { lpht->flags = TVHT_ONITEMRIGHT; } else if (x >= item->textOffset) { lpht->flags = TVHT_ONITEMLABEL; } else if (x >= item->imageOffset) { lpht->flags = TVHT_ONITEMICON; } else if (x >= item->stateOffset) { lpht->flags = TVHT_ONITEMSTATEICON; } else if (x >= item->linesOffset && infoPtr->dwStyle & TVS_HASBUTTONS) { lpht->flags = TVHT_ONITEMBUTTON; } else { lpht->flags = TVHT_ONITEMINDENT; }
lpht->hItem = item; TRACE("(%d,%d):result 0x%x\n", lpht->pt.x, lpht->pt.y, lpht->flags);
return item;}
/* Item Label Editing ***************************************************/
static LRESULTTREEVIEW_GetEditControl(const TREEVIEW_INFO *infoPtr){ return (LRESULT)infoPtr->hwndEdit;}
static LRESULT CALLBACKTREEVIEW_Edit_SubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam){ TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(GetParent(hwnd)); BOOL bCancel = FALSE; LRESULT rc;
switch (uMsg) { case WM_PAINT: TRACE("WM_PAINT start\n"); rc = CallWindowProcW(infoPtr->wpEditOrig, hwnd, uMsg, wParam, lParam); TRACE("WM_PAINT done\n"); return rc;
case WM_KILLFOCUS: if (infoPtr->bIgnoreEditKillFocus) return TRUE; break;
case WM_DESTROY: { WNDPROC editProc = infoPtr->wpEditOrig; infoPtr->wpEditOrig = 0; SetWindowLongPtrW(hwnd, GWLP_WNDPROC, (DWORD_PTR)editProc); return CallWindowProcW(editProc, hwnd, uMsg, wParam, lParam); }
case WM_GETDLGCODE: return DLGC_WANTARROWS | DLGC_WANTALLKEYS;
case WM_KEYDOWN: if (wParam == VK_ESCAPE) { bCancel = TRUE; break; } else if (wParam == VK_RETURN) { break; }
/* fall through */ default: return CallWindowProcW(infoPtr->wpEditOrig, hwnd, uMsg, wParam, lParam); }
/* Processing TVN_ENDLABELEDIT message could kill the focus */ /* eg. Using a messagebox */
infoPtr->bIgnoreEditKillFocus = TRUE; TREEVIEW_EndEditLabelNow(infoPtr, bCancel || !infoPtr->bLabelChanged); infoPtr->bIgnoreEditKillFocus = FALSE;
return 0;}
/* should handle edit control messages here */
static LRESULTTREEVIEW_Command(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam){ TRACE("code=0x%x, id=0x%x, handle=0x%lx\n", HIWORD(wParam), LOWORD(wParam), lParam);
switch (HIWORD(wParam)) { case EN_UPDATE: { /* * Adjust the edit window size */ WCHAR buffer[1024]; TREEVIEW_ITEM *editItem = infoPtr->editItem; HDC hdc = GetDC(infoPtr->hwndEdit); SIZE sz; HFONT hFont, hOldFont = 0;
TRACE("edit=%p\n", infoPtr->hwndEdit);
if (!IsWindow(infoPtr->hwndEdit) || !hdc) return FALSE;
infoPtr->bLabelChanged = TRUE;
GetWindowTextW(infoPtr->hwndEdit, buffer, ARRAY_SIZE(buffer));
/* Select font to get the right dimension of the string */ hFont = (HFONT)SendMessageW(infoPtr->hwndEdit, WM_GETFONT, 0, 0);
if (hFont != 0) { hOldFont = SelectObject(hdc, hFont); }
if (GetTextExtentPoint32W(hdc, buffer, lstrlenW(buffer), &sz)) { TEXTMETRICW textMetric;
/* Add Extra spacing for the next character */ GetTextMetricsW(hdc, &textMetric); sz.cx += (textMetric.tmMaxCharWidth * 2);
sz.cx = max(sz.cx, textMetric.tmMaxCharWidth * 3); sz.cx = min(sz.cx, infoPtr->clientWidth - editItem->textOffset + 2);
SetWindowPos(infoPtr->hwndEdit, HWND_TOP, 0, 0, sz.cx, editItem->rect.bottom - editItem->rect.top + 3, SWP_NOMOVE | SWP_DRAWFRAME); }
if (hFont != 0) { SelectObject(hdc, hOldFont); }
ReleaseDC(infoPtr->hwnd, hdc); break; } case EN_KILLFOCUS: /* apparently we should respect passed handle value */ if (infoPtr->hwndEdit != (HWND)lParam) return FALSE;
TREEVIEW_EndEditLabelNow(infoPtr, FALSE); break;
default: return SendMessageW(infoPtr->hwndNotify, WM_COMMAND, wParam, lParam); }
return 0;}
static HWNDTREEVIEW_EditLabel(TREEVIEW_INFO *infoPtr, HTREEITEM hItem){ HWND hwnd = infoPtr->hwnd; HWND hwndEdit; SIZE sz; HINSTANCE hinst = (HINSTANCE)GetWindowLongPtrW(hwnd, GWLP_HINSTANCE); HDC hdc; HFONT hOldFont=0; TEXTMETRICW textMetric;
TRACE("%p %p\n", hwnd, hItem); if (!(infoPtr->dwStyle & TVS_EDITLABELS)) return NULL;
if (!TREEVIEW_ValidItem(infoPtr, hItem)) return NULL;
if (infoPtr->hwndEdit) return infoPtr->hwndEdit;
infoPtr->bLabelChanged = FALSE;
/* make edit item visible */ TREEVIEW_EnsureVisible(infoPtr, hItem, TRUE);
TREEVIEW_UpdateDispInfo(infoPtr, hItem, TVIF_TEXT);
hdc = GetDC(hwnd); /* Select the font to get appropriate metric dimensions */ if (infoPtr->hFont != 0) { hOldFont = SelectObject(hdc, infoPtr->hFont); }
/* Get string length in pixels */ if (hItem->pszText) GetTextExtentPoint32W(hdc, hItem->pszText, lstrlenW(hItem->pszText), &sz); else GetTextExtentPoint32A(hdc, "", 0, &sz);
/* Add Extra spacing for the next character */ GetTextMetricsW(hdc, &textMetric); sz.cx += (textMetric.tmMaxCharWidth * 2);
sz.cx = max(sz.cx, textMetric.tmMaxCharWidth * 3); sz.cx = min(sz.cx, infoPtr->clientWidth - hItem->textOffset + 2);
if (infoPtr->hFont != 0) { SelectObject(hdc, hOldFont); }
ReleaseDC(hwnd, hdc);
infoPtr->editItem = hItem;
hwndEdit = CreateWindowExW(WS_EX_LEFT, WC_EDITW, 0, WS_CHILD | WS_BORDER | ES_AUTOHSCROLL | WS_CLIPSIBLINGS | ES_WANTRETURN | ES_LEFT, hItem->textOffset - 2, hItem->rect.top - 1, sz.cx + 3, hItem->rect.bottom - hItem->rect.top + 3, hwnd, 0, hinst, 0);/* FIXME: (HMENU)IDTVEDIT,pcs->hInstance,0); */
infoPtr->hwndEdit = hwndEdit;
/* Get a 2D border. */ SetWindowLongW(hwndEdit, GWL_EXSTYLE, GetWindowLongW(hwndEdit, GWL_EXSTYLE) & ~WS_EX_CLIENTEDGE); SetWindowLongW(hwndEdit, GWL_STYLE, GetWindowLongW(hwndEdit, GWL_STYLE) | WS_BORDER);
SendMessageW(hwndEdit, WM_SETFONT, (WPARAM)TREEVIEW_FontForItem(infoPtr, hItem), FALSE);
infoPtr->wpEditOrig = (WNDPROC)SetWindowLongPtrW(hwndEdit, GWLP_WNDPROC, (DWORD_PTR) TREEVIEW_Edit_SubclassProc); SendMessageW(hwndEdit, EM_SETLIMITTEXT, MAX_PATH - 1, 0); if (hItem->pszText) SetWindowTextW(hwndEdit, hItem->pszText);
if (TREEVIEW_BeginLabelEditNotify(infoPtr, hItem)) { DestroyWindow(hwndEdit); infoPtr->hwndEdit = 0; infoPtr->editItem = NULL; return NULL; }
SetFocus(hwndEdit); SendMessageW(hwndEdit, EM_SETSEL, 0, -1); ShowWindow(hwndEdit, SW_SHOW);
return hwndEdit;}
static LRESULTTREEVIEW_EndEditLabelNow(TREEVIEW_INFO *infoPtr, BOOL bCancel){ TREEVIEW_ITEM *editedItem = infoPtr->editItem; NMTVDISPINFOW tvdi; BOOL bCommit; WCHAR tmpText[MAX_PATH] = { '\0' }; WCHAR *newText; int iLength = 0;
if (!IsWindow(infoPtr->hwndEdit)) return FALSE;
tvdi.item.mask = 0; tvdi.item.hItem = editedItem; tvdi.item.state = editedItem->state; tvdi.item.lParam = editedItem->lParam;
if (!bCancel) { if (!infoPtr->bNtfUnicode) iLength = GetWindowTextA(infoPtr->hwndEdit, (LPSTR)tmpText, ARRAY_SIZE(tmpText)); else iLength = GetWindowTextW(infoPtr->hwndEdit, tmpText, ARRAY_SIZE(tmpText));
tvdi.item.mask = TVIF_TEXT; tvdi.item.pszText = tmpText; tvdi.item.cchTextMax = ARRAY_SIZE(tmpText); } else { tvdi.item.pszText = NULL; tvdi.item.cchTextMax = 0; }
bCommit = TREEVIEW_SendRealNotify(infoPtr, TVN_ENDLABELEDITW, &tvdi.hdr);
if (!bCancel && bCommit) /* Apply the changes */ { if (!infoPtr->bNtfUnicode) { DWORD len = MultiByteToWideChar( CP_ACP, 0, (LPSTR)tvdi.item.pszText, -1, NULL, 0 ); newText = heap_alloc(len * sizeof(WCHAR)); MultiByteToWideChar( CP_ACP, 0, (LPSTR)tvdi.item.pszText, -1, newText, len ); iLength = len - 1; } else newText = tvdi.item.pszText;
if (lstrcmpW(newText, editedItem->pszText) != 0) { WCHAR *ptr = heap_realloc(editedItem->pszText, sizeof(WCHAR)*(iLength + 1)); if (ptr == NULL) { ERR("OutOfMemory, cannot allocate space for label\n"); if (newText != tmpText) heap_free(newText); DestroyWindow(infoPtr->hwndEdit); infoPtr->hwndEdit = 0; infoPtr->editItem = NULL; return FALSE; } else { editedItem->pszText = ptr; editedItem->cchTextMax = iLength + 1; lstrcpyW(editedItem->pszText, newText); TREEVIEW_ComputeTextWidth(infoPtr, editedItem, 0); } } if (newText != tmpText) heap_free(newText); }
ShowWindow(infoPtr->hwndEdit, SW_HIDE); DestroyWindow(infoPtr->hwndEdit); infoPtr->hwndEdit = 0; infoPtr->editItem = NULL; return TRUE;}
static LRESULTTREEVIEW_HandleTimer(TREEVIEW_INFO *infoPtr, WPARAM wParam){ if (wParam != TV_EDIT_TIMER) { ERR("got unknown timer\n"); return 1; }
KillTimer(infoPtr->hwnd, TV_EDIT_TIMER); infoPtr->Timer &= ~TV_EDIT_TIMER_SET;
TREEVIEW_EditLabel(infoPtr, infoPtr->selectedItem);
return 0;}
/* Mouse Tracking/Drag **************************************************/
/*************************************************************************** * This is quite unusual piece of code, but that's how it's implemented in * Windows. */static LRESULTTREEVIEW_TrackMouse(const TREEVIEW_INFO *infoPtr, POINT pt){ INT cxDrag = GetSystemMetrics(SM_CXDRAG); INT cyDrag = GetSystemMetrics(SM_CYDRAG); RECT r; MSG msg;
r.top = pt.y - cyDrag; r.left = pt.x - cxDrag; r.bottom = pt.y + cyDrag; r.right = pt.x + cxDrag;
SetCapture(infoPtr->hwnd);
while (1) { if (PeekMessageW(&msg, 0, 0, 0, PM_REMOVE | PM_NOYIELD)) { if (msg.message == WM_MOUSEMOVE) { pt.x = (short)LOWORD(msg.lParam); pt.y = (short)HIWORD(msg.lParam); if (PtInRect(&r, pt)) continue; else { ReleaseCapture(); return 1; } } else if (msg.message >= WM_LBUTTONDOWN && msg.message <= WM_RBUTTONDBLCLK) { break; }
DispatchMessageW(&msg); }
if (GetCapture() != infoPtr->hwnd) return 0; }
ReleaseCapture(); return 0;}
static LRESULTTREEVIEW_LButtonDoubleClick(TREEVIEW_INFO *infoPtr, LPARAM lParam){ TREEVIEW_ITEM *item; TVHITTESTINFO hit;
TRACE("\n"); SetFocus(infoPtr->hwnd);
if (infoPtr->Timer & TV_EDIT_TIMER_SET) { /* If there is pending 'edit label' event - kill it now */ KillTimer(infoPtr->hwnd, TV_EDIT_TIMER); }
hit.pt.x = (short)LOWORD(lParam); hit.pt.y = (short)HIWORD(lParam);
item = TREEVIEW_HitTest(infoPtr, &hit); if (!item) return 0; TRACE("item %d\n", TREEVIEW_GetItemIndex(infoPtr, item));
if (TREEVIEW_SendSimpleNotify(infoPtr, NM_DBLCLK) == FALSE) { /* FIXME! */ switch (hit.flags) { case TVHT_ONITEMRIGHT: /* FIXME: we should not have sent NM_DBLCLK in this case. */ break;
case TVHT_ONITEMINDENT: if (!(infoPtr->dwStyle & TVS_HASLINES)) { break; } else { int level = hit.pt.x / infoPtr->uIndent; if (!(infoPtr->dwStyle & TVS_LINESATROOT)) level++;
while (item->iLevel > level) { item = item->parent; }
/* fall through */ }
case TVHT_ONITEMLABEL: case TVHT_ONITEMICON: case TVHT_ONITEMBUTTON: TREEVIEW_Toggle(infoPtr, item, TRUE); break;
case TVHT_ONITEMSTATEICON: if (infoPtr->dwStyle & TVS_CHECKBOXES) TREEVIEW_ToggleItemState(infoPtr, item); else TREEVIEW_Toggle(infoPtr, item, TRUE); break; } } return TRUE;}
static LRESULTTREEVIEW_LButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam){ BOOL do_track, do_select, bDoLabelEdit; HWND hwnd = infoPtr->hwnd; TVHITTESTINFO ht;
/* If Edit control is active - kill it and return. * The best way to do it is to set focus to itself. * Edit control subclassed procedure will automatically call * EndEditLabelNow. */ if (infoPtr->hwndEdit) { SetFocus(hwnd); return 0; }
ht.pt.x = (short)LOWORD(lParam); ht.pt.y = (short)HIWORD(lParam);
TREEVIEW_HitTest(infoPtr, &ht); TRACE("item %d\n", TREEVIEW_GetItemIndex(infoPtr, ht.hItem));
/* update focusedItem and redraw both items */ if (ht.hItem) { BOOL do_focus;
if (TREEVIEW_IsFullRowSelect(infoPtr)) do_focus = ht.flags & (TVHT_ONITEMINDENT | TVHT_ONITEM | TVHT_ONITEMRIGHT); else do_focus = ht.flags & TVHT_ONITEM;
if (do_focus) { infoPtr->focusedItem = ht.hItem; TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem); TREEVIEW_InvalidateItem(infoPtr, infoPtr->selectedItem); } }
if (!(infoPtr->dwStyle & TVS_DISABLEDRAGDROP)) { if (TREEVIEW_IsFullRowSelect(infoPtr)) do_track = ht.flags & (TVHT_ONITEMINDENT | TVHT_ONITEM | TVHT_ONITEMRIGHT); else do_track = ht.flags & TVHT_ONITEM; } else do_track = FALSE;
/* * If the style allows editing and the node is already selected * and the click occurred on the item label... */ bDoLabelEdit = (infoPtr->dwStyle & TVS_EDITLABELS) && (ht.flags & TVHT_ONITEMLABEL) && (infoPtr->selectedItem == ht.hItem);
/* Send NM_CLICK right away */ if (!do_track && TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK)) goto setfocus;
if (ht.flags & TVHT_ONITEMBUTTON) { TREEVIEW_Toggle(infoPtr, ht.hItem, TRUE); goto setfocus; } else if (do_track) { /* if TREEVIEW_TrackMouse == 1 dragging occurred and the cursor left the dragged item's rectangle */ if (TREEVIEW_TrackMouse(infoPtr, ht.pt)) { TREEVIEW_SendTreeviewDnDNotify(infoPtr, TVN_BEGINDRAGW, ht.hItem, ht.pt); infoPtr->dropItem = ht.hItem;
/* clean up focusedItem as we dragged and won't select this item */ if(infoPtr->focusedItem) { /* refresh the item that was focused */ TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem); infoPtr->focusedItem = NULL;
/* refresh the selected item to return the filled background */ TREEVIEW_InvalidateItem(infoPtr, infoPtr->selectedItem); }
return 0; } }
if (do_track && TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK)) goto setfocus;
if (TREEVIEW_IsFullRowSelect(infoPtr)) do_select = ht.flags & (TVHT_ONITEMINDENT | TVHT_ONITEMICON | TVHT_ONITEMLABEL | TVHT_ONITEMRIGHT); else do_select = ht.flags & (TVHT_ONITEMICON | TVHT_ONITEMLABEL);
if (bDoLabelEdit) { if (infoPtr->Timer & TV_EDIT_TIMER_SET) KillTimer(hwnd, TV_EDIT_TIMER);
SetTimer(hwnd, TV_EDIT_TIMER, GetDoubleClickTime(), 0); infoPtr->Timer |= TV_EDIT_TIMER_SET; } else if (do_select) { TREEVIEW_ITEM *selection = infoPtr->selectedItem;
/* Select the current item */ TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, ht.hItem, TVC_BYMOUSE); TREEVIEW_SingleExpand(infoPtr, selection, ht.hItem); } else if (ht.flags & TVHT_ONITEMSTATEICON) { /* TVS_CHECKBOXES requires us to toggle the current state */ if (infoPtr->dwStyle & TVS_CHECKBOXES) TREEVIEW_ToggleItemState(infoPtr, ht.hItem); }
setfocus: SetFocus(hwnd); return 0;}
static LRESULTTREEVIEW_RButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam){ TVHITTESTINFO ht;
if (infoPtr->hwndEdit) { SetFocus(infoPtr->hwnd); return 0; }
ht.pt.x = (short)LOWORD(lParam); ht.pt.y = (short)HIWORD(lParam);
if (TREEVIEW_HitTest(infoPtr, &ht)) { infoPtr->focusedItem = ht.hItem; TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem); TREEVIEW_InvalidateItem(infoPtr, infoPtr->selectedItem); }
if (TREEVIEW_TrackMouse(infoPtr, ht.pt)) { if (ht.hItem) { TREEVIEW_SendTreeviewDnDNotify(infoPtr, TVN_BEGINRDRAGW, ht.hItem, ht.pt); infoPtr->dropItem = ht.hItem; } } else { SetFocus(infoPtr->hwnd); if(!TREEVIEW_SendSimpleNotify(infoPtr, NM_RCLICK)) { /* Send a WM_CONTEXTMENU message in response to the RBUTTONUP */ SendMessageW(infoPtr->hwndNotify, WM_CONTEXTMENU, (WPARAM)infoPtr->hwnd, (LPARAM)GetMessagePos()); } }
if (ht.hItem) { TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem); infoPtr->focusedItem = infoPtr->selectedItem; TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem); }
return 0;}
static LRESULTTREEVIEW_CreateDragImage(TREEVIEW_INFO *infoPtr, LPARAM lParam){ TREEVIEW_ITEM *dragItem = (HTREEITEM)lParam; INT cx, cy; HDC hdc, htopdc; HWND hwtop; HBITMAP hbmp, hOldbmp; SIZE size; RECT rc; HFONT hOldFont;
TRACE("\n");
if (!(infoPtr->himlNormal)) return 0;
if (!dragItem || !TREEVIEW_ValidItem(infoPtr, dragItem)) return 0;
TREEVIEW_UpdateDispInfo(infoPtr, dragItem, TVIF_TEXT);
hwtop = GetDesktopWindow(); htopdc = GetDC(hwtop); hdc = CreateCompatibleDC(htopdc);
hOldFont = SelectObject(hdc, infoPtr->hFont);
if (dragItem->pszText) GetTextExtentPoint32W(hdc, dragItem->pszText, lstrlenW(dragItem->pszText), &size); else GetTextExtentPoint32A(hdc, "", 0, &size);
TRACE("%d %d %s\n", size.cx, size.cy, debugstr_w(dragItem->pszText)); hbmp = CreateCompatibleBitmap(htopdc, size.cx, size.cy); hOldbmp = SelectObject(hdc, hbmp);
ImageList_GetIconSize(infoPtr->himlNormal, &cx, &cy); size.cx += cx; if (cy > size.cy) size.cy = cy;
infoPtr->dragList = ImageList_Create(size.cx, size.cy, ILC_COLOR, 10, 10); ImageList_Draw(infoPtr->himlNormal, dragItem->iImage, hdc, 0, 0, ILD_NORMAL);
/* ImageList_GetImageInfo (infoPtr->himlNormal, dragItem->hItem, &iminfo); ImageList_AddMasked (infoPtr->dragList, iminfo.hbmImage, CLR_DEFAULT);*/
/* draw item text */
SetRect(&rc, cx, 0, size.cx, size.cy);
if (dragItem->pszText) DrawTextW(hdc, dragItem->pszText, lstrlenW(dragItem->pszText), &rc, DT_LEFT);
SelectObject(hdc, hOldFont); SelectObject(hdc, hOldbmp);
ImageList_Add(infoPtr->dragList, hbmp, 0);
DeleteDC(hdc); DeleteObject(hbmp); ReleaseDC(hwtop, htopdc);
return (LRESULT)infoPtr->dragList;}
/* Selection ************************************************************/
static LRESULTTREEVIEW_DoSelectItem(TREEVIEW_INFO *infoPtr, INT action, HTREEITEM newSelect, INT cause){ TREEVIEW_ITEM *prevSelect;
assert(newSelect == NULL || TREEVIEW_ValidItem(infoPtr, newSelect));
TRACE("Entering item %p (%s), flag 0x%x, cause 0x%x, state 0x%x\n", newSelect, TREEVIEW_ItemName(newSelect), action, cause, newSelect ? newSelect->state : 0);
/* reset and redraw focusedItem if focusedItem was set so we don't */ /* have to worry about the previously focused item when we set a new one */ TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem); infoPtr->focusedItem = NULL;
switch (action) { case TVGN_CARET|TVSI_NOSINGLEEXPAND: FIXME("TVSI_NOSINGLEEXPAND specified.\n"); /* Fall through */ case TVGN_CARET: prevSelect = infoPtr->selectedItem;
if (prevSelect == newSelect) { TREEVIEW_EnsureVisible(infoPtr, infoPtr->selectedItem, FALSE); break; }
if (TREEVIEW_SendTreeviewNotify(infoPtr, TVN_SELCHANGINGW, cause, TVIF_TEXT | TVIF_HANDLE | TVIF_STATE | TVIF_PARAM, prevSelect, newSelect)) return FALSE;
if (prevSelect) prevSelect->state &= ~TVIS_SELECTED; if (newSelect) newSelect->state |= TVIS_SELECTED;
infoPtr->selectedItem = newSelect;
TREEVIEW_EnsureVisible(infoPtr, infoPtr->selectedItem, FALSE);
TREEVIEW_InvalidateItem(infoPtr, prevSelect); TREEVIEW_InvalidateItem(infoPtr, newSelect);
TREEVIEW_SendTreeviewNotify(infoPtr, TVN_SELCHANGEDW, cause, TVIF_TEXT | TVIF_HANDLE | TVIF_STATE | TVIF_PARAM, prevSelect, newSelect); break;
case TVGN_DROPHILITE: prevSelect = infoPtr->dropItem;
if (prevSelect) prevSelect->state &= ~TVIS_DROPHILITED;
infoPtr->dropItem = newSelect;
if (newSelect) newSelect->state |= TVIS_DROPHILITED;
TREEVIEW_Invalidate(infoPtr, prevSelect); TREEVIEW_Invalidate(infoPtr, newSelect); break;
case TVGN_FIRSTVISIBLE: if (newSelect != NULL) { TREEVIEW_EnsureVisible(infoPtr, newSelect, FALSE); TREEVIEW_SetFirstVisible(infoPtr, newSelect, TRUE); TREEVIEW_Invalidate(infoPtr, NULL); } break; }
TRACE("Leaving state 0x%x\n", newSelect ? newSelect->state : 0); return TRUE;}
/* FIXME: handle NM_KILLFOCUS etc */static LRESULTTREEVIEW_SelectItem(TREEVIEW_INFO *infoPtr, INT wParam, HTREEITEM item){ TREEVIEW_ITEM *selection = infoPtr->selectedItem;
if (item && !TREEVIEW_ValidItem(infoPtr, item)) return FALSE;
if (item == infoPtr->selectedItem) return TRUE;
TRACE("%p (%s) %d\n", item, TREEVIEW_ItemName(item), wParam);
if (!TREEVIEW_DoSelectItem(infoPtr, wParam, item, TVC_UNKNOWN)) return FALSE;
TREEVIEW_SingleExpand(infoPtr, selection, item);
return TRUE;}
/************************************************************************* * TREEVIEW_ProcessLetterKeys * * Processes keyboard messages generated by pressing the letter keys * on the keyboard. * What this does is perform a case insensitive search from the * current position with the following quirks: * - If two chars or more are pressed in quick succession we search * for the corresponding string (e.g. 'abc'). * - If there is a delay we wipe away the current search string and * restart with just that char. * - If the user keeps pressing the same character, whether slowly or * fast, so that the search string is entirely composed of this * character ('aaaaa' for instance), then we search for first item * that starting with that character. * - If the user types the above character in quick succession, then * we must also search for the corresponding string ('aaaaa'), and * go to that string if there is a match. * * RETURNS * * Zero. * * BUGS * * - The current implementation has a list of characters it will * accept and it ignores everything else. In particular it will * ignore accentuated characters which seems to match what * Windows does. But I'm not sure it makes sense to follow * Windows there. * - We don't sound a beep when the search fails. * - The search should start from the focused item, not from the selected * item. One reason for this is to allow for multiple selections in trees. * But currently infoPtr->focusedItem does not seem very usable. * * SEE ALSO * * TREEVIEW_ProcessLetterKeys */static INT TREEVIEW_ProcessLetterKeys(TREEVIEW_INFO *infoPtr, WPARAM charCode, LPARAM keyData){ HTREEITEM nItem; HTREEITEM endidx,idx; TVITEMEXW item; WCHAR buffer[MAX_PATH]; DWORD timestamp,elapsed;
/* simple parameter checking */ if (!charCode || !keyData) return 0;
/* only allow the valid WM_CHARs through */ if (!isalnum(charCode) && charCode != '.' && charCode != '`' && charCode != '!' && charCode != '@' && charCode != '#' && charCode != '$' && charCode != '%' && charCode != '^' && charCode != '&' && charCode != '*' && charCode != '(' && charCode != ')' && charCode != '-' && charCode != '_' && charCode != '+' && charCode != '=' && charCode != '\\'&& charCode != ']' && charCode != '}' && charCode != '[' && charCode != '{' && charCode != '/' && charCode != '?' && charCode != '>' && charCode != '<' && charCode != ',' && charCode != '~') return 0;
/* compute how much time elapsed since last keypress */ timestamp = GetTickCount(); if (timestamp > infoPtr->lastKeyPressTimestamp) { elapsed=timestamp-infoPtr->lastKeyPressTimestamp; } else { elapsed=infoPtr->lastKeyPressTimestamp-timestamp; }
/* update the search parameters */ infoPtr->lastKeyPressTimestamp=timestamp; if (elapsed < KEY_DELAY) { if (infoPtr->nSearchParamLength < ARRAY_SIZE(infoPtr->szSearchParam)) { infoPtr->szSearchParam[infoPtr->nSearchParamLength++]=charCode; } if (infoPtr->charCode != charCode) { infoPtr->charCode=charCode=0; } } else { infoPtr->charCode=charCode; infoPtr->szSearchParam[0]=charCode; infoPtr->nSearchParamLength=1; /* Redundant with the 1 char string */ charCode=0; }
/* and search from the current position */ nItem=NULL; if (infoPtr->selectedItem != NULL) { endidx=infoPtr->selectedItem; /* if looking for single character match, * then we must always move forward */ if (infoPtr->nSearchParamLength == 1) idx=TREEVIEW_GetNextListItem(infoPtr,endidx); else idx=endidx; } else { endidx=NULL; idx=infoPtr->root->firstChild; } do { /* At the end point, sort out wrapping */ if (idx == NULL) {
/* If endidx is null, stop at the last item (ie top to bottom) */ if (endidx == NULL) break;
/* Otherwise, start again at the very beginning */ idx=infoPtr->root->firstChild;
/* But if we are stopping on the first child, end now! */ if (idx == endidx) break; }
/* get item */ ZeroMemory(&item, sizeof(item)); item.mask = TVIF_TEXT; item.hItem = idx; item.pszText = buffer; item.cchTextMax = ARRAY_SIZE(buffer); TREEVIEW_GetItemT( infoPtr, &item, TRUE );
/* check for a match */ if (wcsnicmp(item.pszText,infoPtr->szSearchParam,infoPtr->nSearchParamLength) == 0) { nItem=idx; break; } else if ( (charCode != 0) && (nItem == NULL) && (nItem != infoPtr->selectedItem) && (wcsnicmp(item.pszText,infoPtr->szSearchParam,1) == 0) ) { /* This would work but we must keep looking for a longer match */ nItem=idx; } idx=TREEVIEW_GetNextListItem(infoPtr,idx); } while (idx != endidx);
if (nItem != NULL) { if (TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, nItem, TVC_BYKEYBOARD)) { TREEVIEW_EnsureVisible(infoPtr, nItem, FALSE); } }
return 0;}
/* Scrolling ************************************************************/
static LRESULTTREEVIEW_EnsureVisible(TREEVIEW_INFO *infoPtr, HTREEITEM item, BOOL bHScroll){ int viscount; BOOL hasFirstVisible = infoPtr->firstVisible != NULL; HTREEITEM newFirstVisible = NULL; int visible_pos = -1;
if (!TREEVIEW_ValidItem(infoPtr, item)) return FALSE;
if (!ISVISIBLE(item)) { /* Expand parents as necessary. */ HTREEITEM parent;
/* see if we are trying to ensure that root is visible */ if((item != infoPtr->root) && TREEVIEW_ValidItem(infoPtr, item)) parent = item->parent; else parent = item; /* this item is the topmost item */
while (parent != infoPtr->root) { if (!(parent->state & TVIS_EXPANDED)) TREEVIEW_Expand(infoPtr, parent, FALSE, TRUE);
parent = parent->parent; } }
viscount = TREEVIEW_GetVisibleCount(infoPtr);
TRACE("%p (%s) %d - %d viscount(%d)\n", item, TREEVIEW_ItemName(item), item->visibleOrder, hasFirstVisible ? infoPtr->firstVisible->visibleOrder : -1, viscount);
if (hasFirstVisible) visible_pos = item->visibleOrder - infoPtr->firstVisible->visibleOrder;
if (visible_pos < 0) { /* item is before the start of the list: put it at the top. */ newFirstVisible = item; } else if (visible_pos >= viscount /* Sometimes, before we are displayed, GVC is 0, causing us to * spuriously scroll up. */ && visible_pos > 0 && !(infoPtr->dwStyle & TVS_NOSCROLL) ) { /* item is past the end of the list. */ int scroll = visible_pos - viscount;
newFirstVisible = TREEVIEW_GetListItem(infoPtr, infoPtr->firstVisible, scroll + 1); }
if (bHScroll) { /* Scroll window so item's text is visible as much as possible */ /* Calculation of amount of extra space is taken from EditLabel code */ INT pos, x; TEXTMETRICW textMetric; HDC hdc = GetWindowDC(infoPtr->hwnd);
x = item->textWidth;
GetTextMetricsW(hdc, &textMetric); ReleaseDC(infoPtr->hwnd, hdc);
x += (textMetric.tmMaxCharWidth * 2); x = max(x, textMetric.tmMaxCharWidth * 3);
if (item->textOffset < 0) pos = item->textOffset; else if (item->textOffset + x > infoPtr->clientWidth) { if (x > infoPtr->clientWidth) pos = item->textOffset; else pos = item->textOffset + x - infoPtr->clientWidth; } else pos = 0;
TREEVIEW_HScroll(infoPtr, MAKEWPARAM(SB_THUMBPOSITION, infoPtr->scrollX + pos)); }
if (newFirstVisible != NULL && newFirstVisible != infoPtr->firstVisible) { TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
return TRUE; }
return FALSE;}
static VOIDTREEVIEW_SetFirstVisible(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *newFirstVisible, BOOL bUpdateScrollPos){ int gap_size;
TRACE("%p: %s\n", newFirstVisible, TREEVIEW_ItemName(newFirstVisible));
if (newFirstVisible != NULL) { /* Prevent an empty gap from appearing at the bottom... */ gap_size = TREEVIEW_GetVisibleCount(infoPtr) - infoPtr->maxVisibleOrder + newFirstVisible->visibleOrder;
if (gap_size > 0) { newFirstVisible = TREEVIEW_GetListItem(infoPtr, newFirstVisible, -gap_size);
/* ... unless we just don't have enough items. */ if (newFirstVisible == NULL) newFirstVisible = infoPtr->root->firstChild; } }
if (infoPtr->firstVisible != newFirstVisible) { if (infoPtr->firstVisible == NULL || newFirstVisible == NULL) { infoPtr->firstVisible = newFirstVisible; TREEVIEW_Invalidate(infoPtr, NULL); } else { TREEVIEW_ITEM *item; int scroll = infoPtr->uItemHeight * (infoPtr->firstVisible->visibleOrder - newFirstVisible->visibleOrder);
infoPtr->firstVisible = newFirstVisible;
for (item = infoPtr->root->firstChild; item != NULL; item = TREEVIEW_GetNextListItem(infoPtr, item)) { item->rect.top += scroll; item->rect.bottom += scroll; }
if (bUpdateScrollPos) SetScrollPos(infoPtr->hwnd, SB_VERT, newFirstVisible->visibleOrder, TRUE);
ScrollWindowEx(infoPtr->hwnd, 0, scroll, NULL, NULL, NULL, NULL, SW_ERASE | SW_INVALIDATE); } }}
/************************************************************************ * VScroll is always in units of visible items. i.e. we always have a * visible item aligned to the top of the control. (Unless we have no * items at all.) */static LRESULTTREEVIEW_VScroll(TREEVIEW_INFO *infoPtr, WPARAM wParam){ TREEVIEW_ITEM *oldFirstVisible = infoPtr->firstVisible; TREEVIEW_ITEM *newFirstVisible = NULL;
int nScrollCode = LOWORD(wParam);
TRACE("wp %lx\n", wParam);
if (!(infoPtr->uInternalStatus & TV_VSCROLL)) return 0;
if (!oldFirstVisible) { assert(infoPtr->root->firstChild == NULL); return 0; }
switch (nScrollCode) { case SB_TOP: newFirstVisible = infoPtr->root->firstChild; break;
case SB_BOTTOM: newFirstVisible = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root); break;
case SB_LINEUP: newFirstVisible = TREEVIEW_GetPrevListItem(infoPtr, oldFirstVisible); break;
case SB_LINEDOWN: newFirstVisible = TREEVIEW_GetNextListItem(infoPtr, oldFirstVisible); break;
case SB_PAGEUP: newFirstVisible = TREEVIEW_GetListItem(infoPtr, oldFirstVisible, -max(1, TREEVIEW_GetVisibleCount(infoPtr))); break;
case SB_PAGEDOWN: newFirstVisible = TREEVIEW_GetListItem(infoPtr, oldFirstVisible, max(1, TREEVIEW_GetVisibleCount(infoPtr))); break;
case SB_THUMBTRACK: case SB_THUMBPOSITION: newFirstVisible = TREEVIEW_GetListItem(infoPtr, infoPtr->root->firstChild, (LONG)(SHORT)HIWORD(wParam)); break;
case SB_ENDSCROLL: return 0; }
if (newFirstVisible != NULL) { if (newFirstVisible != oldFirstVisible) TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, nScrollCode != SB_THUMBTRACK); else if (nScrollCode == SB_THUMBPOSITION) SetScrollPos(infoPtr->hwnd, SB_VERT, newFirstVisible->visibleOrder, TRUE); }
return 0;}
static LRESULTTREEVIEW_HScroll(TREEVIEW_INFO *infoPtr, WPARAM wParam){ int maxWidth; int scrollX = infoPtr->scrollX; int nScrollCode = LOWORD(wParam);
TRACE("wp %lx\n", wParam);
if (!(infoPtr->uInternalStatus & TV_HSCROLL)) return FALSE;
maxWidth = infoPtr->treeWidth - infoPtr->clientWidth; /* shall never occur */ if (maxWidth <= 0) { scrollX = 0; goto scroll; }
switch (nScrollCode) { case SB_LINELEFT: scrollX -= infoPtr->uItemHeight; break; case SB_LINERIGHT: scrollX += infoPtr->uItemHeight; break; case SB_PAGELEFT: scrollX -= infoPtr->clientWidth; break; case SB_PAGERIGHT: scrollX += infoPtr->clientWidth; break;
case SB_THUMBTRACK: case SB_THUMBPOSITION: scrollX = (int)(SHORT)HIWORD(wParam); break;
case SB_ENDSCROLL: return 0; }
if (scrollX > maxWidth) scrollX = maxWidth; else if (scrollX < 0) scrollX = 0;
scroll: if (scrollX != infoPtr->scrollX) { TREEVIEW_ITEM *item; LONG scroll_pixels = infoPtr->scrollX - scrollX;
for (item = infoPtr->root->firstChild; item != NULL; item = TREEVIEW_GetNextListItem(infoPtr, item)) { item->linesOffset += scroll_pixels; item->stateOffset += scroll_pixels; item->imageOffset += scroll_pixels; item->textOffset += scroll_pixels; }
ScrollWindow(infoPtr->hwnd, scroll_pixels, 0, NULL, NULL); infoPtr->scrollX = scrollX; UpdateWindow(infoPtr->hwnd); }
if (nScrollCode != SB_THUMBTRACK) SetScrollPos(infoPtr->hwnd, SB_HORZ, scrollX, TRUE);
return 0;}
static LRESULTTREEVIEW_MouseWheel(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam){ short wheelDelta; INT pulScrollLines = 3;
if (wParam & (MK_SHIFT | MK_CONTROL)) return DefWindowProcW(infoPtr->hwnd, WM_MOUSEWHEEL, wParam, lParam);
if (infoPtr->firstVisible == NULL) return TRUE;
SystemParametersInfoW(SPI_GETWHEELSCROLLLINES, 0, &pulScrollLines, 0);
wheelDelta = GET_WHEEL_DELTA_WPARAM(wParam); /* if scrolling changes direction, ignore left overs */ if ((wheelDelta < 0 && infoPtr->wheelRemainder < 0) || (wheelDelta > 0 && infoPtr->wheelRemainder > 0)) infoPtr->wheelRemainder += wheelDelta; else infoPtr->wheelRemainder = wheelDelta;
if (infoPtr->wheelRemainder && pulScrollLines) { int newDy; int maxDy; int lineScroll;
lineScroll = pulScrollLines * infoPtr->wheelRemainder / WHEEL_DELTA; infoPtr->wheelRemainder -= WHEEL_DELTA * lineScroll / pulScrollLines;
newDy = infoPtr->firstVisible->visibleOrder - lineScroll; maxDy = infoPtr->maxVisibleOrder;
if (newDy > maxDy) newDy = maxDy;
if (newDy < 0) newDy = 0;
TREEVIEW_VScroll(infoPtr, MAKEWPARAM(SB_THUMBPOSITION, newDy)); } return TRUE;}
/* Create/Destroy *******************************************************/
static LRESULTTREEVIEW_Create(HWND hwnd, const CREATESTRUCTW *lpcs){ RECT rcClient; TREEVIEW_INFO *infoPtr; LOGFONTW lf;
TRACE("wnd %p, style 0x%x\n", hwnd, GetWindowLongW(hwnd, GWL_STYLE));
infoPtr = heap_alloc_zero(sizeof(TREEVIEW_INFO));
if (infoPtr == NULL) { ERR("could not allocate info memory!\n"); return 0; }
SetWindowLongPtrW(hwnd, 0, (DWORD_PTR)infoPtr);
infoPtr->hwnd = hwnd; infoPtr->dwStyle = GetWindowLongW(hwnd, GWL_STYLE); infoPtr->Timer = 0; infoPtr->uNumItems = 0; infoPtr->cdmode = 0; infoPtr->uScrollTime = 300; /* milliseconds */ infoPtr->bRedraw = TRUE;
GetClientRect(hwnd, &rcClient);
/* No scroll bars yet. */ infoPtr->clientWidth = rcClient.right; infoPtr->clientHeight = rcClient.bottom; infoPtr->uInternalStatus = 0;
infoPtr->treeWidth = 0; infoPtr->treeHeight = 0;
infoPtr->uIndent = MINIMUM_INDENT; infoPtr->selectedItem = NULL; infoPtr->focusedItem = NULL; infoPtr->hotItem = NULL; infoPtr->editItem = NULL; infoPtr->firstVisible = NULL; infoPtr->maxVisibleOrder = 0; infoPtr->dropItem = NULL; infoPtr->insertMarkItem = NULL; infoPtr->insertBeforeorAfter = 0; /* dragList */
infoPtr->scrollX = 0; infoPtr->wheelRemainder = 0;
infoPtr->clrBk = CLR_NONE; /* use system color */ infoPtr->clrText = CLR_NONE; /* use system color */ infoPtr->clrLine = CLR_DEFAULT; infoPtr->clrInsertMark = CLR_DEFAULT;
/* hwndToolTip */
infoPtr->hwndEdit = NULL; infoPtr->wpEditOrig = NULL; infoPtr->bIgnoreEditKillFocus = FALSE; infoPtr->bLabelChanged = FALSE;
infoPtr->himlNormal = NULL; infoPtr->himlState = NULL; infoPtr->normalImageWidth = 0; infoPtr->normalImageHeight = 0; infoPtr->stateImageWidth = 0; infoPtr->stateImageHeight = 0;
infoPtr->items = DPA_Create(16);
SystemParametersInfoW(SPI_GETICONTITLELOGFONT, sizeof(lf), &lf, 0); infoPtr->hFont = infoPtr->hDefaultFont = CreateFontIndirectW(&lf); infoPtr->hBoldFont = TREEVIEW_CreateBoldFont(infoPtr->hFont); infoPtr->hUnderlineFont = TREEVIEW_CreateUnderlineFont(infoPtr->hFont); infoPtr->hBoldUnderlineFont = TREEVIEW_CreateBoldUnderlineFont(infoPtr->hFont); infoPtr->hcurHand = LoadCursorW(NULL, (LPWSTR)IDC_HAND);
infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
infoPtr->root = TREEVIEW_AllocateItem(infoPtr); infoPtr->root->state = TVIS_EXPANDED; infoPtr->root->iLevel = -1; infoPtr->root->visibleOrder = -1;
infoPtr->hwndNotify = lpcs->hwndParent; infoPtr->hwndToolTip = 0;
/* Determine what type of notify should be issued (sets infoPtr->bNtfUnicode) */ TREEVIEW_NotifyFormat(infoPtr, infoPtr->hwndNotify, NF_REQUERY);
if (!(infoPtr->dwStyle & TVS_NOTOOLTIPS)) infoPtr->hwndToolTip = CreateWindowExW(0, TOOLTIPS_CLASSW, NULL, WS_POPUP, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, hwnd, 0, 0, 0);
/* Make sure actual scrollbar state is consistent with uInternalStatus */ ShowScrollBar(hwnd, SB_VERT, FALSE); ShowScrollBar(hwnd, SB_HORZ, FALSE); OpenThemeData (hwnd, themeClass);
return 0;}
static LRESULTTREEVIEW_Destroy(TREEVIEW_INFO *infoPtr){ TRACE("\n");
/* free item data */ TREEVIEW_RemoveTree(infoPtr); /* root isn't freed with other items */ TREEVIEW_FreeItem(infoPtr, infoPtr->root); DPA_Destroy(infoPtr->items);
/* Restore original wndproc */ if (infoPtr->hwndEdit) SetWindowLongPtrW(infoPtr->hwndEdit, GWLP_WNDPROC, (DWORD_PTR)infoPtr->wpEditOrig);
CloseThemeData (GetWindowTheme (infoPtr->hwnd));
/* Deassociate treeview from the window before doing anything drastic. */ SetWindowLongPtrW(infoPtr->hwnd, 0, 0);
DeleteObject(infoPtr->hDefaultFont); DeleteObject(infoPtr->hBoldFont); DeleteObject(infoPtr->hUnderlineFont); DeleteObject(infoPtr->hBoldUnderlineFont); DestroyWindow(infoPtr->hwndToolTip); heap_free(infoPtr);
return 0;}
/* Miscellaneous Messages ***********************************************/
static LRESULTTREEVIEW_ScrollKeyDown(TREEVIEW_INFO *infoPtr, WPARAM key){ static const struct { unsigned char code; } scroll[] = {#define SCROLL_ENTRY(dir, code) { ((dir) << 7) | (code) } SCROLL_ENTRY(SB_VERT, SB_PAGEUP), /* VK_PRIOR */ SCROLL_ENTRY(SB_VERT, SB_PAGEDOWN), /* VK_NEXT */ SCROLL_ENTRY(SB_VERT, SB_BOTTOM), /* VK_END */ SCROLL_ENTRY(SB_VERT, SB_TOP), /* VK_HOME */ SCROLL_ENTRY(SB_HORZ, SB_LINEUP), /* VK_LEFT */ SCROLL_ENTRY(SB_VERT, SB_LINEUP), /* VK_UP */ SCROLL_ENTRY(SB_HORZ, SB_LINEDOWN), /* VK_RIGHT */ SCROLL_ENTRY(SB_VERT, SB_LINEDOWN) /* VK_DOWN */#undef SCROLL_ENTRY };
if (key >= VK_PRIOR && key <= VK_DOWN) { unsigned char code = scroll[key - VK_PRIOR].code;
(((code & (1 << 7)) == (SB_HORZ << 7)) ? TREEVIEW_HScroll : TREEVIEW_VScroll)(infoPtr, code & 0x7F); }
return 0;}
/************************************************************************ * TREEVIEW_KeyDown * * VK_UP Move selection to the previous non-hidden item. * VK_DOWN Move selection to the next non-hidden item. * VK_HOME Move selection to the first item. * VK_END Move selection to the last item. * VK_LEFT If expanded then collapse, otherwise move to parent. * VK_RIGHT If collapsed then expand, otherwise move to first child. * VK_ADD Expand. * VK_SUBTRACT Collapse. * VK_MULTIPLY Expand all. * VK_PRIOR Move up GetVisibleCount items. * VK_NEXT Move down GetVisibleCount items. * VK_BACK Move to parent. * CTRL-Left,Right,Up,Down,PgUp,PgDown,Home,End: Scroll without changing selection */static LRESULTTREEVIEW_KeyDown(TREEVIEW_INFO *infoPtr, WPARAM wParam){ /* If it is non-NULL and different, it will be selected and visible. */ TREEVIEW_ITEM *newSelection = NULL; TREEVIEW_ITEM *prevItem = infoPtr->selectedItem; NMTVKEYDOWN nmkeydown;
TRACE("%lx\n", wParam);
nmkeydown.wVKey = wParam; nmkeydown.flags = 0; TREEVIEW_SendRealNotify(infoPtr, TVN_KEYDOWN, &nmkeydown.hdr);
if (prevItem == NULL) return FALSE;
if (GetAsyncKeyState(VK_CONTROL) & 0x8000) return TREEVIEW_ScrollKeyDown(infoPtr, wParam);
switch (wParam) { case VK_UP: newSelection = TREEVIEW_GetPrevListItem(infoPtr, prevItem); if (!newSelection) newSelection = infoPtr->root->firstChild; break;
case VK_DOWN: newSelection = TREEVIEW_GetNextListItem(infoPtr, prevItem); break;
case VK_RETURN: TREEVIEW_SendSimpleNotify(infoPtr, NM_RETURN); break;
case VK_HOME: newSelection = infoPtr->root->firstChild; break;
case VK_END: newSelection = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root); break;
case VK_LEFT: if (prevItem->state & TVIS_EXPANDED) { TREEVIEW_Collapse(infoPtr, prevItem, FALSE, TRUE); } else if (prevItem->parent != infoPtr->root) { newSelection = prevItem->parent; } break;
case VK_RIGHT: if (TREEVIEW_HasChildren(infoPtr, prevItem)) { if (!(prevItem->state & TVIS_EXPANDED)) TREEVIEW_Expand(infoPtr, prevItem, FALSE, TRUE); else { newSelection = prevItem->firstChild; } }
break;
case VK_MULTIPLY: TREEVIEW_ExpandAll(infoPtr, prevItem); break;
case VK_ADD: TREEVIEW_Expand(infoPtr, prevItem, FALSE, TRUE); break;
case VK_SUBTRACT: TREEVIEW_Collapse(infoPtr, prevItem, FALSE, TRUE); break;
case VK_PRIOR: newSelection = TREEVIEW_GetListItem(infoPtr, prevItem, -TREEVIEW_GetVisibleCount(infoPtr)); break;
case VK_NEXT: newSelection = TREEVIEW_GetListItem(infoPtr, prevItem, TREEVIEW_GetVisibleCount(infoPtr)); break;
case VK_BACK: newSelection = prevItem->parent; if (newSelection == infoPtr->root) newSelection = NULL; break;
case VK_SPACE: if (infoPtr->dwStyle & TVS_CHECKBOXES) TREEVIEW_ToggleItemState(infoPtr, prevItem); break; }
if (newSelection && newSelection != prevItem) { if (TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, newSelection, TVC_BYKEYBOARD)) { TREEVIEW_EnsureVisible(infoPtr, newSelection, FALSE); } }
return FALSE;}
static LRESULTTREEVIEW_MouseLeave (TREEVIEW_INFO * infoPtr){ /* remove hot effect from item */ TREEVIEW_InvalidateItem(infoPtr, infoPtr->hotItem); infoPtr->hotItem = NULL;
return 0;}
static LRESULTTREEVIEW_MouseMove (TREEVIEW_INFO * infoPtr, LPARAM lParam){ TRACKMOUSEEVENT trackinfo; TREEVIEW_ITEM * item; TVHITTESTINFO ht; BOOL item_hit;
if (!(infoPtr->dwStyle & TVS_TRACKSELECT)) return 0;
/* fill in the TRACKMOUSEEVENT struct */ trackinfo.cbSize = sizeof(TRACKMOUSEEVENT); trackinfo.dwFlags = TME_QUERY; trackinfo.hwndTrack = infoPtr->hwnd;
/* call _TrackMouseEvent to see if we are currently tracking for this hwnd */ _TrackMouseEvent(&trackinfo);
/* Make sure tracking is enabled so we receive a WM_MOUSELEAVE message */ if(!(trackinfo.dwFlags & TME_LEAVE)) { trackinfo.dwFlags = TME_LEAVE; /* notify upon leaving */ trackinfo.hwndTrack = infoPtr->hwnd; /* do it as fast as possible, minimal systimer latency will be used */ trackinfo.dwHoverTime = 1;
/* call TRACKMOUSEEVENT so we receive a WM_MOUSELEAVE message */ /* and can properly deactivate the hot item */ _TrackMouseEvent(&trackinfo); }
ht.pt.x = (short)LOWORD(lParam); ht.pt.y = (short)HIWORD(lParam);
item = TREEVIEW_HitTest(infoPtr, &ht); item_hit = TREEVIEW_IsItemHit(infoPtr, &ht); if ((item != infoPtr->hotItem) || !item_hit) { /* redraw old hot item */ TREEVIEW_InvalidateItem(infoPtr, infoPtr->hotItem); infoPtr->hotItem = NULL; if (item && item_hit) { infoPtr->hotItem = item; /* redraw new hot item */ TREEVIEW_InvalidateItem(infoPtr, infoPtr->hotItem); } }
return 0;}
/* Draw themed border */static BOOL TREEVIEW_NCPaint (const TREEVIEW_INFO *infoPtr, HRGN region, LPARAM lParam){ HTHEME theme = GetWindowTheme (infoPtr->hwnd); HDC dc; RECT r; HRGN cliprgn; int cxEdge = GetSystemMetrics (SM_CXEDGE), cyEdge = GetSystemMetrics (SM_CYEDGE);
if (!theme) return DefWindowProcW (infoPtr->hwnd, WM_NCPAINT, (WPARAM)region, lParam);
GetWindowRect(infoPtr->hwnd, &r);
cliprgn = CreateRectRgn (r.left + cxEdge, r.top + cyEdge, r.right - cxEdge, r.bottom - cyEdge); if (region != (HRGN)1) CombineRgn (cliprgn, cliprgn, region, RGN_AND); OffsetRect(&r, -r.left, -r.top);
#ifdef __REACTOS__ /* r73789 */ dc = GetWindowDC(infoPtr->hwnd); /* Exclude client part */ ExcludeClipRect(dc, r.left + cxEdge, r.top + cyEdge, r.right - cxEdge, r.bottom -cyEdge);#else dc = GetDCEx(infoPtr->hwnd, region, DCX_WINDOW|DCX_INTERSECTRGN); OffsetRect(&r, -r.left, -r.top);#endif
if (IsThemeBackgroundPartiallyTransparent (theme, 0, 0)) DrawThemeParentBackground(infoPtr->hwnd, dc, &r); DrawThemeBackground (theme, dc, 0, 0, &r, 0); ReleaseDC(infoPtr->hwnd, dc);
/* Call default proc to get the scrollbars etc. painted */ DefWindowProcW (infoPtr->hwnd, WM_NCPAINT, (WPARAM)cliprgn, 0); DeleteObject(cliprgn);
return TRUE;}
static LRESULTTREEVIEW_Notify(const TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam){ LPNMHDR lpnmh = (LPNMHDR)lParam;
if (lpnmh->code == PGN_CALCSIZE) { LPNMPGCALCSIZE lppgc = (LPNMPGCALCSIZE)lParam;
if (lppgc->dwFlag == PGF_CALCWIDTH) { lppgc->iWidth = infoPtr->treeWidth; TRACE("got PGN_CALCSIZE, returning horz size = %d, client=%d\n", infoPtr->treeWidth, infoPtr->clientWidth); } else { lppgc->iHeight = infoPtr->treeHeight; TRACE("got PGN_CALCSIZE, returning vert size = %d, client=%d\n", infoPtr->treeHeight, infoPtr->clientHeight); } return 0; } return DefWindowProcW(infoPtr->hwnd, WM_NOTIFY, wParam, lParam);}
static LRESULTTREEVIEW_Size(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam){ if (wParam == SIZE_RESTORED) { infoPtr->clientWidth = (short)LOWORD(lParam); infoPtr->clientHeight = (short)HIWORD(lParam);
TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL); TREEVIEW_SetFirstVisible(infoPtr, infoPtr->firstVisible, TRUE); TREEVIEW_UpdateScrollBars(infoPtr); } else { FIXME("WM_SIZE flag %lx %lx not handled\n", wParam, lParam); }
TREEVIEW_Invalidate(infoPtr, NULL); return 0;}
static LRESULTTREEVIEW_StyleChanged(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam){ TRACE("(%lx %lx)\n", wParam, lParam);
if (wParam == GWL_STYLE) { DWORD dwNewStyle = ((LPSTYLESTRUCT)lParam)->styleNew;
if ((infoPtr->dwStyle ^ dwNewStyle) & TVS_CHECKBOXES) { if (dwNewStyle & TVS_CHECKBOXES) { TREEVIEW_InitCheckboxes(infoPtr); TRACE("checkboxes enabled\n");
/* set all items to state image index 1 */ TREEVIEW_ResetImageStateIndex(infoPtr, infoPtr->root); } else { FIXME("tried to disable checkboxes\n"); } }
if ((infoPtr->dwStyle ^ dwNewStyle) & TVS_NOTOOLTIPS) { if (infoPtr->dwStyle & TVS_NOTOOLTIPS) { infoPtr->hwndToolTip = COMCTL32_CreateToolTip(infoPtr->hwnd); TRACE("tooltips enabled\n"); } else { DestroyWindow(infoPtr->hwndToolTip); infoPtr->hwndToolTip = 0; TRACE("tooltips disabled\n"); } }
infoPtr->dwStyle = dwNewStyle; }
TREEVIEW_EndEditLabelNow(infoPtr, TRUE); TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root); TREEVIEW_UpdateScrollBars(infoPtr); TREEVIEW_Invalidate(infoPtr, NULL);
return 0;}
static LRESULTTREEVIEW_SetCursor(const TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam){ TREEVIEW_ITEM * item; TVHITTESTINFO ht; NMMOUSE nmmouse;
GetCursorPos(&ht.pt); ScreenToClient(infoPtr->hwnd, &ht.pt);
item = TREEVIEW_HitTest(infoPtr, &ht);
memset(&nmmouse, 0, sizeof(nmmouse)); if (item) { nmmouse.dwItemSpec = (DWORD_PTR)item; nmmouse.dwItemData = item->lParam; } nmmouse.pt.x = 0; nmmouse.pt.y = 0; nmmouse.dwHitInfo = lParam; if (TREEVIEW_SendRealNotify(infoPtr, NM_SETCURSOR, &nmmouse.hdr)) return 0;
if (item && (infoPtr->dwStyle & TVS_TRACKSELECT) && TREEVIEW_IsItemHit(infoPtr, &ht)) { SetCursor(infoPtr->hcurHand); return 0; } else return DefWindowProcW(infoPtr->hwnd, WM_SETCURSOR, wParam, lParam);}
static LRESULTTREEVIEW_SetFocus(TREEVIEW_INFO *infoPtr){ TRACE("\n");
if (!infoPtr->selectedItem) { TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, infoPtr->firstVisible, TVC_UNKNOWN); }
TREEVIEW_Invalidate(infoPtr, infoPtr->selectedItem); TREEVIEW_SendSimpleNotify(infoPtr, NM_SETFOCUS); return 0;}
static LRESULTTREEVIEW_KillFocus(const TREEVIEW_INFO *infoPtr){ TRACE("\n");
TREEVIEW_Invalidate(infoPtr, infoPtr->selectedItem); UpdateWindow(infoPtr->hwnd); TREEVIEW_SendSimpleNotify(infoPtr, NM_KILLFOCUS); return 0;}
/* update theme after a WM_THEMECHANGED message */static LRESULT TREEVIEW_ThemeChanged(const TREEVIEW_INFO *infoPtr){ HTHEME theme = GetWindowTheme (infoPtr->hwnd); CloseThemeData (theme); OpenThemeData (infoPtr->hwnd, themeClass); return 0;}
static LRESULT WINAPITREEVIEW_WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam){ TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(hwnd);
TRACE("hwnd %p msg %04x wp=%08lx lp=%08lx\n", hwnd, uMsg, wParam, lParam);
if (infoPtr) TREEVIEW_VerifyTree(infoPtr); else { if (uMsg == WM_CREATE) TREEVIEW_Create(hwnd, (LPCREATESTRUCTW)lParam); else goto def; }
switch (uMsg) { case TVM_CREATEDRAGIMAGE: return TREEVIEW_CreateDragImage(infoPtr, lParam);
case TVM_DELETEITEM: return TREEVIEW_DeleteItem(infoPtr, (HTREEITEM)lParam);
case TVM_EDITLABELA: case TVM_EDITLABELW: return (LRESULT)TREEVIEW_EditLabel(infoPtr, (HTREEITEM)lParam);
case TVM_ENDEDITLABELNOW: return TREEVIEW_EndEditLabelNow(infoPtr, (BOOL)wParam);
case TVM_ENSUREVISIBLE: return TREEVIEW_EnsureVisible(infoPtr, (HTREEITEM)lParam, TRUE);
case TVM_EXPAND: return TREEVIEW_ExpandMsg(infoPtr, (UINT)wParam, (HTREEITEM)lParam);
case TVM_GETBKCOLOR: return TREEVIEW_GetBkColor(infoPtr);
case TVM_GETCOUNT: return TREEVIEW_GetCount(infoPtr);
case TVM_GETEDITCONTROL: return TREEVIEW_GetEditControl(infoPtr);
case TVM_GETIMAGELIST: return TREEVIEW_GetImageList(infoPtr, wParam);
case TVM_GETINDENT: return TREEVIEW_GetIndent(infoPtr);
case TVM_GETINSERTMARKCOLOR: return TREEVIEW_GetInsertMarkColor(infoPtr);
case TVM_GETISEARCHSTRINGA: FIXME("Unimplemented msg TVM_GETISEARCHSTRINGA\n"); return 0;
case TVM_GETISEARCHSTRINGW: FIXME("Unimplemented msg TVM_GETISEARCHSTRINGW\n"); return 0;
case TVM_GETITEMA: case TVM_GETITEMW: return TREEVIEW_GetItemT(infoPtr, (LPTVITEMEXW)lParam, uMsg == TVM_GETITEMW); case TVM_GETITEMHEIGHT: return TREEVIEW_GetItemHeight(infoPtr);
case TVM_GETITEMRECT: return TREEVIEW_GetItemRect(infoPtr, (BOOL)wParam, (LPRECT)lParam);
case TVM_GETITEMSTATE: return TREEVIEW_GetItemState(infoPtr, (HTREEITEM)wParam, (UINT)lParam);
case TVM_GETLINECOLOR: return TREEVIEW_GetLineColor(infoPtr);
case TVM_GETNEXTITEM: return TREEVIEW_GetNextItem(infoPtr, (UINT)wParam, (HTREEITEM)lParam);
case TVM_GETSCROLLTIME: return TREEVIEW_GetScrollTime(infoPtr);
case TVM_GETTEXTCOLOR: return TREEVIEW_GetTextColor(infoPtr);
case TVM_GETTOOLTIPS: return TREEVIEW_GetToolTips(infoPtr);
case TVM_GETUNICODEFORMAT: return TREEVIEW_GetUnicodeFormat(infoPtr);
case TVM_GETVISIBLECOUNT: return TREEVIEW_GetVisibleCount(infoPtr);
case TVM_HITTEST: return (LRESULT)TREEVIEW_HitTest(infoPtr, (TVHITTESTINFO*)lParam);
case TVM_INSERTITEMA: case TVM_INSERTITEMW: return TREEVIEW_InsertItemT(infoPtr, (LPTVINSERTSTRUCTW)lParam, uMsg == TVM_INSERTITEMW); case TVM_SELECTITEM: return TREEVIEW_SelectItem(infoPtr, (INT)wParam, (HTREEITEM)lParam);
case TVM_SETBKCOLOR: return TREEVIEW_SetBkColor(infoPtr, (COLORREF)lParam);
case TVM_SETIMAGELIST: return TREEVIEW_SetImageList(infoPtr, wParam, (HIMAGELIST)lParam);
case TVM_SETINDENT: return TREEVIEW_SetIndent(infoPtr, (UINT)wParam);
case TVM_SETINSERTMARK: return TREEVIEW_SetInsertMark(infoPtr, (BOOL)wParam, (HTREEITEM)lParam);
case TVM_SETINSERTMARKCOLOR: return TREEVIEW_SetInsertMarkColor(infoPtr, (COLORREF)lParam);
case TVM_SETITEMA: case TVM_SETITEMW: return TREEVIEW_SetItemT(infoPtr, (LPTVITEMEXW)lParam, uMsg == TVM_SETITEMW); case TVM_SETLINECOLOR: return TREEVIEW_SetLineColor(infoPtr, (COLORREF)lParam);
case TVM_SETITEMHEIGHT: return TREEVIEW_SetItemHeight(infoPtr, (INT)(SHORT)wParam);
case TVM_SETSCROLLTIME: return TREEVIEW_SetScrollTime(infoPtr, (UINT)wParam);
case TVM_SETTEXTCOLOR: return TREEVIEW_SetTextColor(infoPtr, (COLORREF)lParam);
case TVM_SETTOOLTIPS: return TREEVIEW_SetToolTips(infoPtr, (HWND)wParam);
case TVM_SETUNICODEFORMAT: return TREEVIEW_SetUnicodeFormat(infoPtr, (BOOL)wParam);
case TVM_SORTCHILDREN: return TREEVIEW_SortChildren(infoPtr, lParam);
case TVM_SORTCHILDRENCB: return TREEVIEW_SortChildrenCB(infoPtr, (LPTVSORTCB)lParam);
case WM_CHAR: return TREEVIEW_ProcessLetterKeys(infoPtr, wParam, lParam);
case WM_COMMAND: return TREEVIEW_Command(infoPtr, wParam, lParam);
case WM_DESTROY: return TREEVIEW_Destroy(infoPtr);
/* WM_ENABLE */
case WM_ERASEBKGND: return TREEVIEW_EraseBackground(infoPtr, (HDC)wParam);
case WM_GETDLGCODE: return DLGC_WANTARROWS | DLGC_WANTCHARS;
case WM_GETFONT: return TREEVIEW_GetFont(infoPtr);
case WM_HSCROLL: return TREEVIEW_HScroll(infoPtr, wParam);
case WM_KEYDOWN:#ifndef __REACTOS__ case WM_SYSKEYDOWN:#endif return TREEVIEW_KeyDown(infoPtr, wParam);
case WM_KILLFOCUS: return TREEVIEW_KillFocus(infoPtr);
case WM_LBUTTONDBLCLK: return TREEVIEW_LButtonDoubleClick(infoPtr, lParam);
case WM_LBUTTONDOWN: return TREEVIEW_LButtonDown(infoPtr, lParam);
/* WM_MBUTTONDOWN */
case WM_MOUSELEAVE: return TREEVIEW_MouseLeave(infoPtr);
case WM_MOUSEMOVE: return TREEVIEW_MouseMove(infoPtr, lParam);
case WM_NCLBUTTONDOWN: if (infoPtr->hwndEdit) SetFocus(infoPtr->hwnd); goto def;
case WM_NCPAINT: return TREEVIEW_NCPaint (infoPtr, (HRGN)wParam, lParam);
case WM_NOTIFY: return TREEVIEW_Notify(infoPtr, wParam, lParam);
case WM_NOTIFYFORMAT: return TREEVIEW_NotifyFormat(infoPtr, (HWND)wParam, (UINT)lParam);
case WM_PRINTCLIENT: return TREEVIEW_PrintClient(infoPtr, (HDC)wParam, lParam);
case WM_PAINT: return TREEVIEW_Paint(infoPtr, (HDC)wParam);
case WM_RBUTTONDOWN: return TREEVIEW_RButtonDown(infoPtr, lParam);
case WM_SETCURSOR: return TREEVIEW_SetCursor(infoPtr, wParam, lParam);
case WM_SETFOCUS: return TREEVIEW_SetFocus(infoPtr);
case WM_SETFONT: return TREEVIEW_SetFont(infoPtr, (HFONT)wParam, (BOOL)lParam);
case WM_SETREDRAW: return TREEVIEW_SetRedraw(infoPtr, wParam);
case WM_SIZE: return TREEVIEW_Size(infoPtr, wParam, lParam);
case WM_STYLECHANGED: return TREEVIEW_StyleChanged(infoPtr, wParam, lParam);
case WM_SYSCOLORCHANGE: COMCTL32_RefreshSysColors(); return 0;
case WM_TIMER: return TREEVIEW_HandleTimer(infoPtr, wParam);
case WM_THEMECHANGED: return TREEVIEW_ThemeChanged (infoPtr);
case WM_VSCROLL: return TREEVIEW_VScroll(infoPtr, wParam);
/* WM_WININICHANGE */
case WM_MOUSEWHEEL: return TREEVIEW_MouseWheel(infoPtr, wParam, lParam);
case WM_DRAWITEM: TRACE("drawItem\n"); goto def;
default: /* This mostly catches MFC and Delphi messages. :( */ if ((uMsg >= WM_USER) && (uMsg < WM_APP) && !COMCTL32_IsReflectedMessage(uMsg)) TRACE("Unknown msg %04x wp=%08lx lp=%08lx\n", uMsg, wParam, lParam);def: return DefWindowProcW(hwnd, uMsg, wParam, lParam); }}
/* Class Registration ***************************************************/
VOIDTREEVIEW_Register(void){ WNDCLASSW wndClass;
TRACE("\n");
ZeroMemory(&wndClass, sizeof(WNDCLASSW)); wndClass.style = CS_GLOBALCLASS | CS_DBLCLKS; wndClass.lpfnWndProc = TREEVIEW_WindowProc; wndClass.cbClsExtra = 0; wndClass.cbWndExtra = sizeof(TREEVIEW_INFO *);
wndClass.hCursor = LoadCursorW(0, (LPWSTR)IDC_ARROW); wndClass.hbrBackground = 0; wndClass.lpszClassName = WC_TREEVIEWW;
RegisterClassW(&wndClass);}
VOIDTREEVIEW_Unregister(void){ UnregisterClassW(WC_TREEVIEWW, NULL);}
/* Tree Verification ****************************************************/
static inline voidTREEVIEW_VerifyChildren(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item);
static inline void TREEVIEW_VerifyItemCommon(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item){ assert(infoPtr != NULL); assert(item != NULL);
/* both NULL, or both non-null */ assert((item->firstChild == NULL) == (item->lastChild == NULL));
assert(item->firstChild != item); assert(item->lastChild != item);
if (item->firstChild) { assert(item->firstChild->parent == item); assert(item->firstChild->prevSibling == NULL); }
if (item->lastChild) { assert(item->lastChild->parent == item); assert(item->lastChild->nextSibling == NULL); }
assert(item->nextSibling != item); if (item->nextSibling) { assert(item->nextSibling->parent == item->parent); assert(item->nextSibling->prevSibling == item); }
assert(item->prevSibling != item); if (item->prevSibling) { assert(item->prevSibling->parent == item->parent); assert(item->prevSibling->nextSibling == item); }}
static inline voidTREEVIEW_VerifyItem(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item){ assert(item != NULL);
assert(item->parent != NULL); assert(item->parent != item); assert(item->iLevel == item->parent->iLevel + 1);
assert(DPA_GetPtrIndex(infoPtr->items, item) != -1);
TREEVIEW_VerifyItemCommon(infoPtr, item);
TREEVIEW_VerifyChildren(infoPtr, item);}
static inline voidTREEVIEW_VerifyChildren(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item){ const TREEVIEW_ITEM *child; assert(item != NULL);
for (child = item->firstChild; child != NULL; child = child->nextSibling) TREEVIEW_VerifyItem(infoPtr, child);}
static inline voidTREEVIEW_VerifyRoot(TREEVIEW_INFO *infoPtr){ TREEVIEW_ITEM *root = infoPtr->root;
assert(root != NULL); assert(root->iLevel == -1); assert(root->parent == NULL); assert(root->prevSibling == NULL);
TREEVIEW_VerifyItemCommon(infoPtr, root);
TREEVIEW_VerifyChildren(infoPtr, root);}
static voidTREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr){ if (!TRACE_ON(treeview)) return;
assert(infoPtr != NULL); TREEVIEW_VerifyRoot(infoPtr);}