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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 * * This code was audited for completeness against the documented features * of Comctl32.dll version 6.0 on Oct. 3, 2004, by Dimitrie O. Paun. * * Unless otherwise noted, we believe this code to be complete, as per * the specification mentioned above. * If you discover missing features, or bugs, please note them below. * * TODO * Styles * - BS_NOTIFY: is it complete? * - BS_RIGHTBUTTON: same as BS_LEFTTEXT * * Messages * - WM_CHAR: Checks a (manual or automatic) check box on '+' or '=', clears it on '-' key. * - WM_SETFOCUS: For (manual or automatic) radio buttons, send the parent window BN_CLICKED * - WM_NCCREATE: Turns any BS_OWNERDRAW button into a BS_PUSHBUTTON button. * - WM_SYSKEYUP * - BCM_GETIDEALSIZE * - BCM_GETIMAGELIST * - BCM_GETTEXTMARGIN * - BCM_SETIMAGELIST * - BCM_SETTEXTMARGIN * * Notifications * - BCN_HOTITEMCHANGE * - BN_DISABLE * - BN_PUSHED/BN_HILITE * + BN_KILLFOCUS: is it OK? * - BN_PAINT * + BN_SETFOCUS: is it OK? * - BN_UNPUSHED/BN_UNHILITE * - NM_CUSTOMDRAW * * Structures/Macros/Definitions * - BUTTON_IMAGELIST * - NMBCHOTITEM * - Button_GetIdealSize * - Button_GetImageList * - Button_GetTextMargin * - Button_SetImageList * - Button_SetTextMargin */
#include <user32.h>
WINE_DEFAULT_DEBUG_CHANNEL(button);
/* GetWindowLong offsets for window extra information */#define STATE_GWL_OFFSET 0#define BUTTON_HFONT_GWL_OFFSET (sizeof(LONG))#define HIMAGE_GWL_OFFSET (BUTTON_HFONT_GWL_OFFSET+sizeof(HFONT))#define BUTTON_UISTATE_GWL_OFFSET (HIMAGE_GWL_OFFSET+sizeof(HFONT))#define NB_EXTRA_BYTES (BUTTON_UISTATE_GWL_OFFSET+sizeof(LONG_PTR))
/* undocumented flags */#define BUTTON_NSTATES 0x0F#define BUTTON_BTNPRESSED 0x40#define BUTTON_UNKNOWN2 0x20#define BUTTON_UNKNOWN3 0x10#ifdef __REACTOS__#define BUTTON_BMCLICK 0x100 // ReactOS Need to up to wine!#endif
#define BUTTON_NOTIFY_PARENT(hWnd, code) \ do { /* Notify parent which has created this button control */ \ TRACE("notification " #code " sent to hwnd=%p\n", GetParent(hWnd)); \ SendMessageW(GetParent(hWnd), WM_COMMAND, \ MAKEWPARAM(GetWindowLongPtrW((hWnd),GWLP_ID), (code)), \ (LPARAM)(hWnd)); \ } while(0)
static UINT BUTTON_CalcLabelRect( HWND hwnd, HDC hdc, RECT *rc );static void PB_Paint( HWND hwnd, HDC hDC, UINT action );static void CB_Paint( HWND hwnd, HDC hDC, UINT action );static void GB_Paint( HWND hwnd, HDC hDC, UINT action );static void UB_Paint( HWND hwnd, HDC hDC, UINT action );static void OB_Paint( HWND hwnd, HDC hDC, UINT action );static void BUTTON_CheckAutoRadioButton( HWND hwnd );
#define MAX_BTN_TYPE 16
static const WORD maxCheckState[MAX_BTN_TYPE] ={ BST_UNCHECKED, /* BS_PUSHBUTTON */ BST_UNCHECKED, /* BS_DEFPUSHBUTTON */ BST_CHECKED, /* BS_CHECKBOX */ BST_CHECKED, /* BS_AUTOCHECKBOX */ BST_CHECKED, /* BS_RADIOBUTTON */ BST_INDETERMINATE, /* BS_3STATE */ BST_INDETERMINATE, /* BS_AUTO3STATE */ BST_UNCHECKED, /* BS_GROUPBOX */ BST_UNCHECKED, /* BS_USERBUTTON */ BST_CHECKED, /* BS_AUTORADIOBUTTON */ BST_UNCHECKED, /* BS_PUSHBOX */ BST_UNCHECKED /* BS_OWNERDRAW */};
typedef void (*pfButtonPaint)( HWND hwnd, HDC hdc, UINT action );
static const pfButtonPaint btnPaintFunc[MAX_BTN_TYPE] ={ PB_Paint, /* BS_PUSHBUTTON */ PB_Paint, /* BS_DEFPUSHBUTTON */ CB_Paint, /* BS_CHECKBOX */ CB_Paint, /* BS_AUTOCHECKBOX */ CB_Paint, /* BS_RADIOBUTTON */ CB_Paint, /* BS_3STATE */ CB_Paint, /* BS_AUTO3STATE */ GB_Paint, /* BS_GROUPBOX */ UB_Paint, /* BS_USERBUTTON */ CB_Paint, /* BS_AUTORADIOBUTTON */ NULL, /* BS_PUSHBOX */ OB_Paint /* BS_OWNERDRAW */};
/********************************************************************* * button class descriptor */static const WCHAR buttonW[] = {'B','u','t','t','o','n',0};const struct builtin_class_descr BUTTON_builtin_class ={ buttonW, /* name */ CS_DBLCLKS | CS_VREDRAW | CS_HREDRAW | CS_PARENTDC, /* style */#ifdef __REACTOS__ ButtonWndProcA, /* procA */ ButtonWndProcW, /* procW */#else WINPROC_BUTTON, /* proc */#endif NB_EXTRA_BYTES, /* extra */ IDC_ARROW, /* cursor */ 0 /* brush */};
static inline LONG get_button_state( HWND hwnd ){ return GetWindowLongPtrW( hwnd, STATE_GWL_OFFSET );}
static inline void set_button_state( HWND hwnd, LONG state ){ SetWindowLongPtrW( hwnd, STATE_GWL_OFFSET, state );}
#ifdef __REACTOS__
static __inline void set_ui_state( HWND hwnd, LONG flags ){ SetWindowLongPtrW( hwnd, BUTTON_UISTATE_GWL_OFFSET, flags );}
static __inline LONG get_ui_state( HWND hwnd ){ return GetWindowLongPtrW( hwnd, BUTTON_UISTATE_GWL_OFFSET );}
#endif /* __REACTOS__ */
static inline HFONT get_button_font( HWND hwnd ){ return (HFONT)GetWindowLongPtrW( hwnd, BUTTON_HFONT_GWL_OFFSET );}
static inline void set_button_font( HWND hwnd, HFONT font ){ SetWindowLongPtrW( hwnd, BUTTON_HFONT_GWL_OFFSET, (LONG_PTR)font );}
static inline UINT get_button_type( LONG window_style ){ return (window_style & BS_TYPEMASK);}
/* paint a button of any type */static inline void paint_button( HWND hwnd, LONG style, UINT action ){ if (btnPaintFunc[style] && IsWindowVisible(hwnd)) { HDC hdc = GetDC( hwnd ); btnPaintFunc[style]( hwnd, hdc, action ); ReleaseDC( hwnd, hdc ); }}
/* retrieve the button text; returned buffer must be freed by caller */static inline WCHAR *get_button_text( HWND hwnd ){ INT len = 512; WCHAR *buffer = HeapAlloc( GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR) ); if (buffer) InternalGetWindowText( hwnd, buffer, len + 1 ); return buffer;}
#ifdef __REACTOS__/* Retrieve the UI state for the control */static BOOL button_update_uistate(HWND hwnd, BOOL unicode){ LONG flags, prevflags;
if (unicode) flags = DefWindowProcW(hwnd, WM_QUERYUISTATE, 0, 0); else flags = DefWindowProcA(hwnd, WM_QUERYUISTATE, 0, 0);
prevflags = get_ui_state(hwnd);
if (prevflags != flags) { set_ui_state(hwnd, flags); return TRUE; }
return FALSE;}#endif
/*********************************************************************** * ButtonWndProc_common */LRESULT WINAPI ButtonWndProc_common(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL unicode ){ RECT rect; POINT pt; LONG style = GetWindowLongPtrW( hWnd, GWL_STYLE ); UINT btn_type = get_button_type( style ); LONG state; HANDLE oldHbitmap;#ifdef __REACTOS__ PWND pWnd;
pWnd = ValidateHwnd(hWnd); if (pWnd) { if (!pWnd->fnid) { NtUserSetWindowFNID(hWnd, FNID_BUTTON); } else { if (pWnd->fnid != FNID_BUTTON) { ERR("Wrong window class for Button! fnId 0x%x\n",pWnd->fnid); return 0; } } } else return 0;#else if (!IsWindow( hWnd )) return 0;#endif
pt.x = (short)LOWORD(lParam); pt.y = (short)HIWORD(lParam);
switch (uMsg) { case WM_GETDLGCODE: switch(btn_type) { case BS_USERBUTTON: case BS_PUSHBUTTON: return DLGC_BUTTON | DLGC_UNDEFPUSHBUTTON; case BS_DEFPUSHBUTTON: return DLGC_BUTTON | DLGC_DEFPUSHBUTTON; case BS_RADIOBUTTON: case BS_AUTORADIOBUTTON: return DLGC_BUTTON | DLGC_RADIOBUTTON; case BS_GROUPBOX: return DLGC_STATIC; default: return DLGC_BUTTON; }
case WM_ENABLE: paint_button( hWnd, btn_type, ODA_DRAWENTIRE ); break;
case WM_CREATE: if (btn_type >= MAX_BTN_TYPE) return -1; /* abort */
/* XP turns a BS_USERBUTTON into BS_PUSHBUTTON */ if (btn_type == BS_USERBUTTON ) { style = (style & ~BS_TYPEMASK) | BS_PUSHBUTTON;#ifdef __REACTOS__ NtUserAlterWindowStyle(hWnd, GWL_STYLE, style );#else WIN_SetStyle( hWnd, style, BS_TYPEMASK & ~style );#endif } set_button_state( hWnd, BST_UNCHECKED );#ifdef __REACTOS__ button_update_uistate( hWnd, unicode );#endif return 0;
#ifdef __REACTOS__ case WM_NCDESTROY: NtUserSetWindowFNID(hWnd, FNID_DESTROY); case WM_DESTROY: break;#endif
case WM_ERASEBKGND: if (btn_type == BS_OWNERDRAW) { HDC hdc = (HDC)wParam; RECT rc; HBRUSH hBrush; HWND parent = GetParent(hWnd); if (!parent) parent = hWnd;#ifdef __REACTOS__ hBrush = GetControlColor( parent, hWnd, hdc, WM_CTLCOLORBTN);#else hBrush = (HBRUSH)SendMessageW(parent, WM_CTLCOLORBTN, (WPARAM)hdc, (LPARAM)hWnd); if (!hBrush) /* did the app forget to call defwindowproc ? */ hBrush = (HBRUSH)DefWindowProcW(parent, WM_CTLCOLORBTN, (WPARAM)hdc, (LPARAM)hWnd);#endif GetClientRect(hWnd, &rc); FillRect(hdc, &rc, hBrush); } return 1;
case WM_PRINTCLIENT: case WM_PAINT: { PAINTSTRUCT ps; HDC hdc = wParam ? (HDC)wParam : BeginPaint( hWnd, &ps ); if (btnPaintFunc[btn_type]) { int nOldMode = SetBkMode( hdc, OPAQUE ); (btnPaintFunc[btn_type])( hWnd, hdc, ODA_DRAWENTIRE ); SetBkMode(hdc, nOldMode); /* reset painting mode */ } if ( !wParam ) EndPaint( hWnd, &ps ); break; }
case WM_KEYDOWN: if (wParam == VK_SPACE) { SendMessageW( hWnd, BM_SETSTATE, TRUE, 0 ); set_button_state( hWnd, get_button_state( hWnd ) | BUTTON_BTNPRESSED ); SetCapture( hWnd ); } break;
case WM_LBUTTONDBLCLK: if(style & BS_NOTIFY || btn_type == BS_RADIOBUTTON || btn_type == BS_USERBUTTON || btn_type == BS_OWNERDRAW) { BUTTON_NOTIFY_PARENT(hWnd, BN_DOUBLECLICKED); break; } /* fall through */ case WM_LBUTTONDOWN: SetCapture( hWnd ); SetFocus( hWnd ); set_button_state( hWnd, get_button_state( hWnd ) | BUTTON_BTNPRESSED ); SendMessageW( hWnd, BM_SETSTATE, TRUE, 0 ); break;
case WM_KEYUP: if (wParam != VK_SPACE) break; /* fall through */ case WM_LBUTTONUP:#ifdef __REACTOS__ { BOOL TellParent = FALSE; //// ReactOS see note below.#endif state = get_button_state( hWnd ); if (!(state & BUTTON_BTNPRESSED)) break; state &= BUTTON_NSTATES; set_button_state( hWnd, state ); if (!(state & BST_PUSHED)) { ReleaseCapture(); break; } SendMessageW( hWnd, BM_SETSTATE, FALSE, 0 ); GetClientRect( hWnd, &rect ); if (uMsg == WM_KEYUP || PtInRect( &rect, pt )) { state = get_button_state( hWnd ); switch(btn_type) { case BS_AUTOCHECKBOX: SendMessageW( hWnd, BM_SETCHECK, !(state & BST_CHECKED), 0 ); break; case BS_AUTORADIOBUTTON: BUTTON_CheckAutoRadioButton( hWnd ); break; case BS_AUTO3STATE: SendMessageW( hWnd, BM_SETCHECK, (state & BST_INDETERMINATE) ? 0 : ((state & 3) + 1), 0 ); break; }#ifdef __REACTOS__ TellParent = TRUE; // <---- Fix CORE-10194, Notify parent after capture is released.#else ReleaseCapture(); BUTTON_NOTIFY_PARENT(hWnd, BN_CLICKED);#endif }#ifndef __REACTOS__ else { ReleaseCapture(); }#else ReleaseCapture(); if (TellParent) BUTTON_NOTIFY_PARENT(hWnd, BN_CLICKED); }#endif break;
case WM_CAPTURECHANGED: TRACE("WM_CAPTURECHANGED %p\n", hWnd); if (hWnd == (HWND)lParam) break; state = get_button_state( hWnd ); if (state & BUTTON_BTNPRESSED) { state &= BUTTON_NSTATES; set_button_state( hWnd, state ); if (state & BST_PUSHED) SendMessageW( hWnd, BM_SETSTATE, FALSE, 0 ); } break;
case WM_MOUSEMOVE: if ((wParam & MK_LBUTTON) && GetCapture() == hWnd) { GetClientRect( hWnd, &rect ); SendMessageW( hWnd, BM_SETSTATE, PtInRect(&rect, pt), 0 ); } break;
case WM_SETTEXT: { /* Clear an old text here as Windows does *///// ReactOS Note :// wine Bug: http://bugs.winehq.org/show_bug.cgi?id=25790// Patch: http://source.winehq.org/patches/data/70889// By: Alexander LAW, Replicate Windows behavior of WM_SETTEXT handler regarding WM_CTLCOLOR*//#ifdef __REACTOS__ if (style & WS_VISIBLE)#else if (IsWindowVisible(hWnd))#endif { HDC hdc = GetDC(hWnd); HBRUSH hbrush; RECT client, rc; HWND parent = GetParent(hWnd); UINT message = (btn_type == BS_PUSHBUTTON || btn_type == BS_DEFPUSHBUTTON || btn_type == BS_PUSHLIKE || btn_type == BS_USERBUTTON || btn_type == BS_OWNERDRAW) ? WM_CTLCOLORBTN : WM_CTLCOLORSTATIC;
if (!parent) parent = hWnd;#ifdef __REACTOS__ hbrush = GetControlColor(parent, hWnd, hdc, message);#else hbrush = (HBRUSH)SendMessageW(parent, message, (WPARAM)hdc, (LPARAM)hWnd); if (!hbrush) /* did the app forget to call DefWindowProc ? */ hbrush = (HBRUSH)DefWindowProcW(parent, message, (WPARAM)hdc, (LPARAM)hWnd);#endif
GetClientRect(hWnd, &client); rc = client; /* FIXME: check other BS_* handlers */ if (btn_type == BS_GROUPBOX) InflateRect(&rc, -7, 1); /* GB_Paint does this */ BUTTON_CalcLabelRect(hWnd, hdc, &rc); /* Clip by client rect bounds */ if (rc.right > client.right) rc.right = client.right; if (rc.bottom > client.bottom) rc.bottom = client.bottom; FillRect(hdc, &rc, hbrush); ReleaseDC(hWnd, hdc); }
if (unicode) DefWindowProcW( hWnd, WM_SETTEXT, wParam, lParam ); else DefWindowProcA( hWnd, WM_SETTEXT, wParam, lParam ); if (btn_type == BS_GROUPBOX) /* Yes, only for BS_GROUPBOX */ InvalidateRect( hWnd, NULL, TRUE ); else paint_button( hWnd, btn_type, ODA_DRAWENTIRE ); return 1; /* success. FIXME: check text length */ }
case WM_SETFONT: set_button_font( hWnd, (HFONT)wParam ); if (lParam) InvalidateRect(hWnd, NULL, TRUE); break;
case WM_GETFONT: return (LRESULT)get_button_font( hWnd );
case WM_SETFOCUS: TRACE("WM_SETFOCUS %p\n",hWnd); set_button_state( hWnd, get_button_state(hWnd) | BST_FOCUS ); paint_button( hWnd, btn_type, ODA_FOCUS ); if (style & BS_NOTIFY) BUTTON_NOTIFY_PARENT(hWnd, BN_SETFOCUS);#ifdef __REACTOS__ if (((btn_type == BS_RADIOBUTTON) || (btn_type == BS_AUTORADIOBUTTON)) && !(get_button_state(hWnd) & BST_CHECKED)) { BUTTON_NOTIFY_PARENT(hWnd, BN_CLICKED); }#endif break;
case WM_KILLFOCUS: TRACE("WM_KILLFOCUS %p\n",hWnd); state = get_button_state( hWnd ); set_button_state( hWnd, state & ~BST_FOCUS ); paint_button( hWnd, btn_type, ODA_FOCUS );
if ((state & BUTTON_BTNPRESSED) && GetCapture() == hWnd) ReleaseCapture(); if (style & BS_NOTIFY) BUTTON_NOTIFY_PARENT(hWnd, BN_KILLFOCUS);
InvalidateRect( hWnd, NULL, FALSE ); break;
case WM_SYSCOLORCHANGE: InvalidateRect( hWnd, NULL, FALSE ); break;
case BM_SETSTYLE: btn_type = wParam & BS_TYPEMASK; style = (style & ~BS_TYPEMASK) | btn_type;#ifdef __REACTOS__ NtUserAlterWindowStyle(hWnd, GWL_STYLE, style);#else WIN_SetStyle( hWnd, style, BS_TYPEMASK & ~style );#endif
/* Only redraw if lParam flag is set.*/ if (lParam) InvalidateRect( hWnd, NULL, TRUE );
break;
case BM_CLICK:#ifdef __REACTOS__ state = get_button_state(hWnd); if (state & BUTTON_BMCLICK) break; set_button_state(hWnd, state | BUTTON_BMCLICK); // Tracked in STATE_GWL_OFFSET.#endif SendMessageW( hWnd, WM_LBUTTONDOWN, 0, 0 ); SendMessageW( hWnd, WM_LBUTTONUP, 0, 0 );#ifdef __REACTOS__ state = get_button_state(hWnd); if (!(state & BUTTON_BMCLICK)) break; state &= ~BUTTON_BMCLICK; set_button_state(hWnd, state);#endif break;
case BM_SETIMAGE: /* Check that image format matches button style */ switch (style & (BS_BITMAP|BS_ICON)) { case BS_BITMAP: if (wParam != IMAGE_BITMAP) return 0; break; case BS_ICON: if (wParam != IMAGE_ICON) return 0; break; default: return 0; } oldHbitmap = (HBITMAP)SetWindowLongPtrW( hWnd, HIMAGE_GWL_OFFSET, lParam ); InvalidateRect( hWnd, NULL, FALSE ); return (LRESULT)oldHbitmap;
case BM_GETIMAGE: return GetWindowLongPtrW( hWnd, HIMAGE_GWL_OFFSET );
case BM_GETCHECK: return get_button_state( hWnd ) & 3;
case BM_SETCHECK: if (wParam > maxCheckState[btn_type]) wParam = maxCheckState[btn_type]; state = get_button_state( hWnd ); if ((btn_type == BS_RADIOBUTTON) || (btn_type == BS_AUTORADIOBUTTON)) {#ifdef __REACTOS__ if (wParam) style |= WS_TABSTOP; else style &= ~WS_TABSTOP; NtUserAlterWindowStyle(hWnd, GWL_STYLE, style);#else if (wParam) WIN_SetStyle( hWnd, WS_TABSTOP, 0 ); else WIN_SetStyle( hWnd, 0, WS_TABSTOP );#endif } if ((state & 3) != wParam) { set_button_state( hWnd, (state & ~3) | wParam ); paint_button( hWnd, btn_type, ODA_SELECT ); } break;
case BM_GETSTATE: return get_button_state( hWnd );
case BM_SETSTATE: state = get_button_state( hWnd ); if (wParam) set_button_state( hWnd, state | BST_PUSHED ); else set_button_state( hWnd, state & ~BST_PUSHED );
paint_button( hWnd, btn_type, ODA_SELECT ); break;
#ifdef __REACTOS__ case WM_UPDATEUISTATE: if (unicode) DefWindowProcW(hWnd, uMsg, wParam, lParam); else DefWindowProcA(hWnd, uMsg, wParam, lParam);
if (button_update_uistate(hWnd, unicode)) paint_button( hWnd, btn_type, ODA_DRAWENTIRE ); break;#endif
case WM_NCHITTEST: if(btn_type == BS_GROUPBOX) return HTTRANSPARENT; /* fall through */ default: return unicode ? DefWindowProcW(hWnd, uMsg, wParam, lParam) : DefWindowProcA(hWnd, uMsg, wParam, lParam); } return 0;}
#ifdef __REACTOS__
/*********************************************************************** * ButtonWndProcW * The button window procedure. This is just a wrapper which locks * the passed HWND and calls the real window procedure (with a WND* * pointer pointing to the locked windowstructure). */LRESULT WINAPI ButtonWndProcW(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam){ if (!IsWindow(hWnd)) return 0; return ButtonWndProc_common(hWnd, uMsg, wParam, lParam, TRUE);}
/*********************************************************************** * ButtonWndProcA */LRESULT WINAPI ButtonWndProcA(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam){ if (!IsWindow(hWnd)) return 0; return ButtonWndProc_common(hWnd, uMsg, wParam, lParam, FALSE);}
#endif /* __REACTOS__ */
/********************************************************************** * Convert button styles to flags used by DrawText. */static UINT BUTTON_BStoDT( DWORD style, DWORD ex_style ){ UINT dtStyle = DT_NOCLIP; /* We use SelectClipRgn to limit output */
/* "Convert" pushlike buttons to pushbuttons */ if (style & BS_PUSHLIKE) style &= ~BS_TYPEMASK;
if (!(style & BS_MULTILINE)) dtStyle |= DT_SINGLELINE; else dtStyle |= DT_WORDBREAK;
switch (style & BS_CENTER) { case BS_LEFT: /* DT_LEFT is 0 */ break; case BS_RIGHT: dtStyle |= DT_RIGHT; break; case BS_CENTER: dtStyle |= DT_CENTER; break; default: /* Pushbutton's text is centered by default */ if (get_button_type(style) <= BS_DEFPUSHBUTTON) dtStyle |= DT_CENTER; /* all other flavours have left aligned text */ }
if (ex_style & WS_EX_RIGHT) dtStyle = DT_RIGHT | (dtStyle & ~(DT_LEFT | DT_CENTER));
/* DrawText ignores vertical alignment for multiline text, * but we use these flags to align label manually. */ if (get_button_type(style) != BS_GROUPBOX) { switch (style & BS_VCENTER) { case BS_TOP: /* DT_TOP is 0 */ break; case BS_BOTTOM: dtStyle |= DT_BOTTOM; break; case BS_VCENTER: /* fall through */ default: dtStyle |= DT_VCENTER; break; } } else /* GroupBox's text is always single line and is top aligned. */ dtStyle |= DT_SINGLELINE;
return dtStyle;}
/********************************************************************** * BUTTON_CalcLabelRect * * Calculates label's rectangle depending on button style. * * Returns flags to be passed to DrawText. * Calculated rectangle doesn't take into account button state * (pushed, etc.). If there is nothing to draw (no text/image) output * rectangle is empty, and return value is (UINT)-1. */static UINT BUTTON_CalcLabelRect(HWND hwnd, HDC hdc, RECT *rc){ LONG style = GetWindowLongPtrW( hwnd, GWL_STYLE ); LONG ex_style = GetWindowLongPtrW( hwnd, GWL_EXSTYLE ); WCHAR *text; ICONINFO iconInfo; BITMAP bm; UINT dtStyle = BUTTON_BStoDT( style, ex_style ); RECT r = *rc; INT n;
/* Calculate label rectangle according to label type */ switch (style & (BS_ICON|BS_BITMAP)) { case BS_TEXT: { HFONT hFont, hPrevFont = 0;
if (!(text = get_button_text( hwnd ))) goto empty_rect; if (!text[0]) { HeapFree( GetProcessHeap(), 0, text ); goto empty_rect; }
if ((hFont = get_button_font( hwnd ))) hPrevFont = SelectObject( hdc, hFont );#ifdef __REACTOS__ DrawTextW(hdc, text, -1, &r, ((dtStyle | DT_CALCRECT) & ~(DT_VCENTER | DT_BOTTOM)));#else DrawTextW(hdc, text, -1, &r, dtStyle | DT_CALCRECT);#endif if (hPrevFont) SelectObject( hdc, hPrevFont ); HeapFree( GetProcessHeap(), 0, text );#ifdef __REACTOS__ if (get_ui_state(hwnd) & UISF_HIDEACCEL) dtStyle |= DT_HIDEPREFIX;#endif break; }
case BS_ICON: if (!GetIconInfo((HICON)GetWindowLongPtrW( hwnd, HIMAGE_GWL_OFFSET ), &iconInfo)) goto empty_rect;
GetObjectW (iconInfo.hbmColor, sizeof(BITMAP), &bm);
r.right = r.left + bm.bmWidth; r.bottom = r.top + bm.bmHeight;
DeleteObject(iconInfo.hbmColor); DeleteObject(iconInfo.hbmMask); break;
case BS_BITMAP: if (!GetObjectW( (HANDLE)GetWindowLongPtrW( hwnd, HIMAGE_GWL_OFFSET ), sizeof(BITMAP), &bm)) goto empty_rect;
r.right = r.left + bm.bmWidth; r.bottom = r.top + bm.bmHeight; break;
default: empty_rect: rc->right = r.left; rc->bottom = r.top; return (UINT)-1; }
/* Position label inside bounding rectangle according to * alignment flags. (calculated rect is always left-top aligned). * If label is aligned to any side - shift label in opposite * direction to leave extra space for focus rectangle. */ switch (dtStyle & (DT_CENTER|DT_RIGHT)) { case DT_LEFT: r.left++; r.right++; break; case DT_CENTER: n = r.right - r.left; r.left = rc->left + ((rc->right - rc->left) - n) / 2; r.right = r.left + n; break; case DT_RIGHT: n = r.right - r.left; r.right = rc->right - 1; r.left = r.right - n; break; }
switch (dtStyle & (DT_VCENTER|DT_BOTTOM)) { case DT_TOP: r.top++; r.bottom++; break; case DT_VCENTER: n = r.bottom - r.top;#ifdef __REACTOS__ r.top = rc->top + ((rc->bottom - 1 - rc->top) - n) / 2;#else r.top = rc->top + ((rc->bottom - rc->top) - n) / 2;#endif r.bottom = r.top + n; break; case DT_BOTTOM: n = r.bottom - r.top; r.bottom = rc->bottom - 1; r.top = r.bottom - n; break; }
*rc = r; return dtStyle;}
/********************************************************************** * BUTTON_DrawTextCallback * * Callback function used by DrawStateW function. */static BOOL CALLBACK BUTTON_DrawTextCallback(HDC hdc, LPARAM lp, WPARAM wp, int cx, int cy){ RECT rc;
SetRect(&rc, 0, 0, cx, cy); DrawTextW(hdc, (LPCWSTR)lp, -1, &rc, (UINT)wp); return TRUE;}
/********************************************************************** * BUTTON_DrawLabel * * Common function for drawing button label. */static void BUTTON_DrawLabel(HWND hwnd, HDC hdc, UINT dtFlags, const RECT *rc){ DRAWSTATEPROC lpOutputProc = NULL; LPARAM lp; WPARAM wp = 0; HBRUSH hbr = 0; UINT flags = IsWindowEnabled(hwnd) ? DSS_NORMAL : DSS_DISABLED; LONG state = get_button_state( hwnd ); LONG style = GetWindowLongPtrW( hwnd, GWL_STYLE ); WCHAR *text = NULL;
/* FIXME: To draw disabled label in Win31 look-and-feel, we probably * must use DSS_MONO flag and COLOR_GRAYTEXT brush (or maybe DSS_UNION). * I don't have Win31 on hand to verify that, so I leave it as is. */
if ((style & BS_PUSHLIKE) && (state & BST_INDETERMINATE)) { hbr = GetSysColorBrush(COLOR_GRAYTEXT); flags |= DSS_MONO; }
switch (style & (BS_ICON|BS_BITMAP)) { case BS_TEXT: /* DST_COMPLEX -- is 0 */ lpOutputProc = BUTTON_DrawTextCallback; if (!(text = get_button_text( hwnd ))) return; lp = (LPARAM)text; wp = (WPARAM)dtFlags;
#ifdef __REACTOS__ if (dtFlags & DT_HIDEPREFIX) flags |= DSS_HIDEPREFIX;#endif break;
case BS_ICON: flags |= DST_ICON; lp = GetWindowLongPtrW( hwnd, HIMAGE_GWL_OFFSET ); break;
case BS_BITMAP: flags |= DST_BITMAP; lp = GetWindowLongPtrW( hwnd, HIMAGE_GWL_OFFSET ); break;
default: return; }
DrawStateW(hdc, hbr, lpOutputProc, lp, wp, rc->left, rc->top, rc->right - rc->left, rc->bottom - rc->top, flags); HeapFree( GetProcessHeap(), 0, text );}
/********************************************************************** * Push Button Functions */static void PB_Paint( HWND hwnd, HDC hDC, UINT action ){ RECT rc, r; UINT dtFlags, uState; HPEN hOldPen; HBRUSH hOldBrush; INT oldBkMode; COLORREF oldTxtColor; HFONT hFont; LONG state = get_button_state( hwnd ); LONG style = GetWindowLongPtrW( hwnd, GWL_STYLE ); BOOL pushedState = (state & BST_PUSHED); HWND parent; HRGN hrgn;
GetClientRect( hwnd, &rc );
/* Send WM_CTLCOLOR to allow changing the font (the colors are fixed) */ if ((hFont = get_button_font( hwnd ))) SelectObject( hDC, hFont ); parent = GetParent(hwnd); if (!parent) parent = hwnd;#ifdef __REACTOS__ GetControlColor( parent, hwnd, hDC, WM_CTLCOLORBTN);#else SendMessageW( parent, WM_CTLCOLORBTN, (WPARAM)hDC, (LPARAM)hwnd );#endif
hrgn = set_control_clipping( hDC, &rc );#ifdef __REACTOS__ hOldPen = SelectObject(hDC, GetStockObject(DC_PEN)); SetDCPenColor(hDC, GetSysColor(COLOR_WINDOWFRAME));#else hOldPen = SelectObject(hDC, SYSCOLOR_GetPen(COLOR_WINDOWFRAME));#endif hOldBrush = SelectObject(hDC,GetSysColorBrush(COLOR_BTNFACE)); oldBkMode = SetBkMode(hDC, TRANSPARENT);
if (get_button_type(style) == BS_DEFPUSHBUTTON) { if (action != ODA_FOCUS) Rectangle(hDC, rc.left, rc.top, rc.right, rc.bottom); InflateRect( &rc, -1, -1 ); }
/* completely skip the drawing if only focus has changed */ if (action == ODA_FOCUS) goto draw_focus;
uState = DFCS_BUTTONPUSH;
if (style & BS_FLAT) uState |= DFCS_MONO; else if (pushedState) { if (get_button_type(style) == BS_DEFPUSHBUTTON ) uState |= DFCS_FLAT; else uState |= DFCS_PUSHED; }
if (state & (BST_CHECKED | BST_INDETERMINATE)) uState |= DFCS_CHECKED;
DrawFrameControl( hDC, &rc, DFC_BUTTON, uState );
/* draw button label */ r = rc; dtFlags = BUTTON_CalcLabelRect(hwnd, hDC, &r);
if (dtFlags == (UINT)-1L) goto cleanup;
if (pushedState) OffsetRect(&r, 1, 1);
oldTxtColor = SetTextColor( hDC, GetSysColor(COLOR_BTNTEXT) );
BUTTON_DrawLabel(hwnd, hDC, dtFlags, &r);
SetTextColor( hDC, oldTxtColor );
draw_focus: if (action == ODA_FOCUS || (state & BST_FOCUS)) {#ifdef __REACTOS__ if (!(get_ui_state(hwnd) & UISF_HIDEFOCUS)) {#endif InflateRect( &rc, -2, -2 ); DrawFocusRect( hDC, &rc );#ifdef __REACTOS__ }#endif }
cleanup: SelectObject( hDC, hOldPen ); SelectObject( hDC, hOldBrush ); SetBkMode(hDC, oldBkMode); SelectClipRgn( hDC, hrgn ); if (hrgn) DeleteObject( hrgn );}
/********************************************************************** * Check Box & Radio Button Functions */
static void CB_Paint( HWND hwnd, HDC hDC, UINT action ){ RECT rbox, rtext, client; HBRUSH hBrush; int delta, text_offset, checkBoxWidth, checkBoxHeight; UINT dtFlags; HFONT hFont; LONG state = get_button_state( hwnd ); LONG style = GetWindowLongPtrW( hwnd, GWL_STYLE ); LONG ex_style = GetWindowLongW( hwnd, GWL_EXSTYLE ); HWND parent; HRGN hrgn;
if (style & BS_PUSHLIKE) { PB_Paint( hwnd, hDC, action ); return; }
GetClientRect(hwnd, &client); rbox = rtext = client;
checkBoxWidth = 12 * GetDeviceCaps( hDC, LOGPIXELSX ) / 96 + 1; checkBoxHeight = 12 * GetDeviceCaps( hDC, LOGPIXELSY ) / 96 + 1;
if ((hFont = get_button_font( hwnd ))) SelectObject( hDC, hFont ); GetCharWidthW( hDC, '0', '0', &text_offset ); text_offset /= 2;
parent = GetParent(hwnd); if (!parent) parent = hwnd;#ifdef __REACTOS__ hBrush = GetControlColor(parent, hwnd, hDC, WM_CTLCOLORSTATIC);#else hBrush = (HBRUSH)SendMessageW(parent, WM_CTLCOLORSTATIC, (WPARAM)hDC, (LPARAM)hwnd); if (!hBrush) /* did the app forget to call defwindowproc ? */ hBrush = (HBRUSH)DefWindowProcW(parent, WM_CTLCOLORSTATIC, (WPARAM)hDC, (LPARAM)hwnd );#endif hrgn = set_control_clipping( hDC, &client );
if (style & BS_LEFTTEXT || ex_style & WS_EX_RIGHT) { /* magic +4 is what CTL3D expects */
rtext.right -= checkBoxWidth + text_offset;; rbox.left = rbox.right - checkBoxWidth; } else { rtext.left += checkBoxWidth + text_offset;; rbox.right = checkBoxWidth; }
/* Since WM_ERASEBKGND does nothing, first prepare background */ if (action == ODA_SELECT) FillRect( hDC, &rbox, hBrush ); if (action == ODA_DRAWENTIRE) FillRect( hDC, &client, hBrush );
/* Draw label */ client = rtext; dtFlags = BUTTON_CalcLabelRect(hwnd, hDC, &rtext); /* Only adjust rbox when rtext is valid */ if (dtFlags != (UINT)-1L) { rbox.top = rtext.top; rbox.bottom = rtext.bottom; }
/* Draw the check-box bitmap */ if (action == ODA_DRAWENTIRE || action == ODA_SELECT) { UINT flags;
if ((get_button_type(style) == BS_RADIOBUTTON) || (get_button_type(style) == BS_AUTORADIOBUTTON)) flags = DFCS_BUTTONRADIO; else if (state & BST_INDETERMINATE) flags = DFCS_BUTTON3STATE; else flags = DFCS_BUTTONCHECK;
if (state & (BST_CHECKED | BST_INDETERMINATE)) flags |= DFCS_CHECKED; if (state & BST_PUSHED) flags |= DFCS_PUSHED;
if (style & WS_DISABLED) flags |= DFCS_INACTIVE;
/* rbox must have the correct height */ delta = rbox.bottom - rbox.top - checkBoxHeight; if (style & BS_TOP) { if (delta > 0) { rbox.bottom = rbox.top + checkBoxHeight; } else { rbox.top -= -delta/2 + 1; rbox.bottom = rbox.top + checkBoxHeight; } } else if (style & BS_BOTTOM) { if (delta > 0) { rbox.top = rbox.bottom - checkBoxHeight; } else { rbox.bottom += -delta/2 + 1; rbox.top = rbox.bottom - checkBoxHeight; } } else { /* Default */ if (delta > 0) { int ofs = (delta / 2); rbox.bottom -= ofs + 1; rbox.top = rbox.bottom - checkBoxHeight; } else if (delta < 0) { int ofs = (-delta / 2); rbox.top -= ofs + 1; rbox.bottom = rbox.top + checkBoxHeight; } }
DrawFrameControl( hDC, &rbox, DFC_BUTTON, flags ); }
if (dtFlags == (UINT)-1L) /* Noting to draw */ return;
if (action == ODA_DRAWENTIRE) BUTTON_DrawLabel(hwnd, hDC, dtFlags, &rtext);
/* ... and focus */ if (action == ODA_FOCUS || (state & BST_FOCUS)) {#ifdef __REACTOS__ if (!(get_ui_state(hwnd) & UISF_HIDEFOCUS)) {#endif rtext.left--; rtext.right++; IntersectRect(&rtext, &rtext, &client); DrawFocusRect( hDC, &rtext );#ifdef __REACTOS__ }#endif } SelectClipRgn( hDC, hrgn ); if (hrgn) DeleteObject( hrgn );}
/********************************************************************** * BUTTON_CheckAutoRadioButton * * hwnd is checked, uncheck every other auto radio button in group */static void BUTTON_CheckAutoRadioButton( HWND hwnd ){ HWND parent, sibling, start;
parent = GetParent(hwnd); /* make sure that starting control is not disabled or invisible */ start = sibling = hwnd; do { if (!sibling) break;#ifdef __REACTOS__ if ((SendMessageW(sibling, WM_GETDLGCODE, 0, 0) & (DLGC_BUTTON | DLGC_RADIOBUTTON)) == (DLGC_BUTTON | DLGC_RADIOBUTTON))#else if (SendMessageW( sibling, WM_GETDLGCODE, 0, 0 ) == (DLGC_BUTTON | DLGC_RADIOBUTTON))#endif SendMessageW( sibling, BM_SETCHECK, sibling == hwnd ? BST_CHECKED : BST_UNCHECKED, 0 ); sibling = GetNextDlgGroupItem( parent, sibling, FALSE ); } while (sibling != start);}
/********************************************************************** * Group Box Functions */
static void GB_Paint( HWND hwnd, HDC hDC, UINT action ){ RECT rc, rcFrame; HBRUSH hbr; HFONT hFont; UINT dtFlags; TEXTMETRICW tm; LONG style = GetWindowLongPtrW( hwnd, GWL_STYLE ); HWND parent; HRGN hrgn;
if ((hFont = get_button_font( hwnd ))) SelectObject( hDC, hFont ); /* GroupBox acts like static control, so it sends CTLCOLORSTATIC */ parent = GetParent(hwnd); if (!parent) parent = hwnd;#ifdef __REACTOS__ hbr = GetControlColor(parent, hwnd, hDC, WM_CTLCOLORSTATIC);#else hbr = (HBRUSH)SendMessageW(parent, WM_CTLCOLORSTATIC, (WPARAM)hDC, (LPARAM)hwnd); if (!hbr) /* did the app forget to call defwindowproc ? */ hbr = (HBRUSH)DefWindowProcW(parent, WM_CTLCOLORSTATIC, (WPARAM)hDC, (LPARAM)hwnd);#endif GetClientRect( hwnd, &rc); rcFrame = rc; hrgn = set_control_clipping( hDC, &rc );
GetTextMetricsW (hDC, &tm); rcFrame.top += (tm.tmHeight / 2) - 1; DrawEdge (hDC, &rcFrame, EDGE_ETCHED, BF_RECT | ((style & BS_FLAT) ? BF_FLAT : 0));
InflateRect(&rc, -7, 1); dtFlags = BUTTON_CalcLabelRect(hwnd, hDC, &rc);
if (dtFlags != (UINT)-1L) { /* Because buttons have CS_PARENTDC class style, there is a chance * that label will be drawn out of client rect. * But Windows doesn't clip label's rect, so do I. */
/* There is 1-pixel margin at the left, right, and bottom */ rc.left--; rc.right++; rc.bottom++; FillRect(hDC, &rc, hbr); rc.left++; rc.right--; rc.bottom--;
BUTTON_DrawLabel(hwnd, hDC, dtFlags, &rc); } SelectClipRgn( hDC, hrgn ); if (hrgn) DeleteObject( hrgn );}
/********************************************************************** * User Button Functions */
static void UB_Paint( HWND hwnd, HDC hDC, UINT action ){ RECT rc; HBRUSH hBrush; HFONT hFont; LONG state = get_button_state( hwnd ); HWND parent;
GetClientRect( hwnd, &rc);
if ((hFont = get_button_font( hwnd ))) SelectObject( hDC, hFont );
parent = GetParent(hwnd); if (!parent) parent = hwnd;#ifdef __REACTOS__ hBrush = GetControlColor( parent, hwnd, hDC, WM_CTLCOLORBTN);#else hBrush = (HBRUSH)SendMessageW(parent, WM_CTLCOLORBTN, (WPARAM)hDC, (LPARAM)hwnd); if (!hBrush) /* did the app forget to call defwindowproc ? */ hBrush = (HBRUSH)DefWindowProcW(parent, WM_CTLCOLORBTN, (WPARAM)hDC, (LPARAM)hwnd);#endif
FillRect( hDC, &rc, hBrush ); if (action == ODA_FOCUS || (state & BST_FOCUS))#ifdef __REACTOS__ { if (!(get_ui_state(hwnd) & UISF_HIDEFOCUS))#endif DrawFocusRect( hDC, &rc );#ifdef __REACTOS__ }#endif
switch (action) { case ODA_FOCUS: BUTTON_NOTIFY_PARENT( hwnd, (state & BST_FOCUS) ? BN_SETFOCUS : BN_KILLFOCUS ); break;
case ODA_SELECT: BUTTON_NOTIFY_PARENT( hwnd, (state & BST_PUSHED) ? BN_HILITE : BN_UNHILITE ); break;
default: BUTTON_NOTIFY_PARENT( hwnd, BN_PAINT ); break; }}
/********************************************************************** * Ownerdrawn Button Functions */
static void OB_Paint( HWND hwnd, HDC hDC, UINT action ){ LONG state = get_button_state( hwnd ); DRAWITEMSTRUCT dis; LONG_PTR id = GetWindowLongPtrW( hwnd, GWLP_ID ); HWND parent; HFONT hFont, hPrevFont = 0; HRGN hrgn;
dis.CtlType = ODT_BUTTON; dis.CtlID = id; dis.itemID = 0; dis.itemAction = action; dis.itemState = ((state & BST_FOCUS) ? ODS_FOCUS : 0) | ((state & BST_PUSHED) ? ODS_SELECTED : 0) | (IsWindowEnabled(hwnd) ? 0: ODS_DISABLED); dis.hwndItem = hwnd; dis.hDC = hDC; dis.itemData = 0; GetClientRect( hwnd, &dis.rcItem );
if ((hFont = get_button_font( hwnd ))) hPrevFont = SelectObject( hDC, hFont ); parent = GetParent(hwnd); if (!parent) parent = hwnd;#ifdef __REACTOS__ GetControlColor( parent, hwnd, hDC, WM_CTLCOLORBTN);#else SendMessageW( parent, WM_CTLCOLORBTN, (WPARAM)hDC, (LPARAM)hwnd );#endif
hrgn = set_control_clipping( hDC, &dis.rcItem );
SendMessageW( GetParent(hwnd), WM_DRAWITEM, id, (LPARAM)&dis ); if (hPrevFont) SelectObject(hDC, hPrevFont); SelectClipRgn( hDC, hrgn ); if (hrgn) DeleteObject( hrgn );}