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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413/* * PROJECT: ReactOS Task Manager * LICENSE: LGPL-2.1-or-later (https://spdx.org/licenses/LGPL-2.1-or-later) * PURPOSE: Graph Plotting controls. * COPYRIGHT: Copyright 2002 Robert Dickenson <robd@reactos.org> * Copyright 2021 Wu Haotian <rigoligo03@gmail.com> * Copyright 2021 Valerij Zaporogeci <vlrzprgts@gmail.com> */
#include "precomp.h"
#include <math.h>
WNDPROC OldGraphCtrlWndProc;
BOOLGraphCtrl_Create(PTM_GRAPH_CONTROL inst, HWND hWnd, HWND hParentWnd, PTM_FORMAT fmt){ HDC hdc, hdcg; HBITMAP hbmOld; UINT Size; INT p; RECT rc;
inst->hParentWnd = hParentWnd; inst->hWnd = hWnd;
Size = GetSystemMetrics(SM_CXSCREEN); inst->BitmapWidth = Size; Size /= PLOT_SHIFT; inst->PointBuffer = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, Size * NUM_PLOTS); if (!inst->PointBuffer) { goto fail; }
inst->NumberOfPoints = Size; inst->CurrIndex = 0;
/* Styling */ inst->hPenGrid = CreatePen(PS_SOLID, 0, fmt->clrGrid); inst->hPen0 = CreatePen(PS_SOLID, 0, fmt->clrPlot0); inst->hPen1 = CreatePen(PS_SOLID, 0, fmt->clrPlot1); inst->hBrushBack = CreateSolidBrush(fmt->clrBack);
if (!inst->hPenGrid || !inst->hPen0 || !inst->hPen1 || !inst->hBrushBack) { goto fail; }
if (fmt->GridCellWidth >= PLOT_SHIFT << 2) inst->GridCellWidth = fmt->GridCellWidth; else inst->GridCellWidth = PLOT_SHIFT << 2; if (fmt->GridCellHeight >= PLOT_SHIFT << 2) inst->GridCellHeight = fmt->GridCellHeight; else inst->GridCellHeight = PLOT_SHIFT << 2;
inst->DrawSecondaryPlot = fmt->DrawSecondaryPlot;
GetClientRect(hWnd, &rc); inst->BitmapHeight = rc.bottom; inst->ftPixelsPerPercent = (FLOAT)(inst->BitmapHeight) / 100.00f;
hdc = GetDC(hParentWnd); if (!hdc) goto fail;
inst->hdcGraph = hdcg = CreateCompatibleDC(hdc); inst->hbmGraph = CreateCompatibleBitmap(hdc, inst->BitmapWidth, inst->BitmapHeight); ReleaseDC(hParentWnd, hdc); if (!hdcg || !inst->hbmGraph) goto fail;
hbmOld = (HBITMAP)SelectObject(hdcg, inst->hbmGraph); DeleteObject(hbmOld);
SetBkColor(hdcg, fmt->clrBack); rc.right = inst->BitmapWidth; FillRect(hdcg, &rc, inst->hBrushBack);
inst->CurrShift = 0; SelectObject(hdcg, inst->hPenGrid); for (p = inst->GridCellHeight - 1; p < inst->BitmapHeight; p += inst->GridCellHeight) { MoveToEx(hdcg, 0, p, NULL); LineTo(hdcg, inst->BitmapWidth, p); } for (p = inst->BitmapWidth - 1; p > 0; p -= inst->GridCellWidth) { MoveToEx(hdcg, p, 0, NULL); LineTo(hdcg, p, inst->BitmapHeight); } SelectObject(hdcg, inst->hPen0);
return TRUE;
fail: GraphCtrl_Dispose(inst); return FALSE;}
voidGraphCtrl_Dispose(PTM_GRAPH_CONTROL inst){ if (inst->PointBuffer) HeapFree(GetProcessHeap(), 0, inst->PointBuffer);
if (inst->hdcGraph) DeleteDC(inst->hdcGraph);
if (inst->hPenGrid) DeleteObject(inst->hPenGrid);
if (inst->hPen0) DeleteObject(inst->hPen0);
if (inst->hPen1) DeleteObject(inst->hPen1);
if (inst->hBrushBack) DeleteObject(inst->hBrushBack);
if (inst->hbmGraph) DeleteObject(inst->hbmGraph);}
voidGraphCtrl_AddPoint(PTM_GRAPH_CONTROL inst, BYTE val0, BYTE val1){ HDC hdcg; PBYTE t; RECT rcDirt;
UINT Prev0, Prev1, RetainingWidth; INT PrevY, CurrY, p, v;
hdcg = inst->hdcGraph; RetainingWidth = inst->BitmapWidth - PLOT_SHIFT; t = inst->PointBuffer; Prev0 = *(t + inst->CurrIndex); Prev1 = *(t + inst->CurrIndex + inst->NumberOfPoints); if (inst->CurrIndex < inst->NumberOfPoints - 1) { inst->CurrIndex++; } else { inst->CurrIndex = 0; } *(t + inst->CurrIndex) = val0; *(t + inst->CurrIndex + inst->NumberOfPoints) = val1;
/* Drawing points, first shifting the plot left */ BitBlt(hdcg, 0, 0, RetainingWidth, inst->BitmapHeight, hdcg, PLOT_SHIFT, 0, SRCCOPY);
rcDirt.left = RetainingWidth; rcDirt.top = 0; rcDirt.right = inst->BitmapWidth; rcDirt.bottom = inst->BitmapHeight; FillRect(hdcg, &rcDirt, inst->hBrushBack);
SelectObject(hdcg, inst->hPenGrid); for (p = inst->GridCellHeight - 1; p < inst->BitmapHeight; p += inst->GridCellHeight) { MoveToEx(hdcg, RetainingWidth, p, NULL); LineTo(hdcg, inst->BitmapWidth, p); } v = inst->CurrShift + PLOT_SHIFT; if (v >= inst->GridCellWidth) { v -= inst->GridCellWidth; p = inst->BitmapWidth - v - 1; MoveToEx(hdcg, p, 0, NULL); LineTo(hdcg, p, inst->BitmapHeight); } inst->CurrShift = v;
if (inst->DrawSecondaryPlot) { SelectObject(inst->hdcGraph, inst->hPen1);
PrevY = inst->BitmapHeight - Prev1 * inst->ftPixelsPerPercent; MoveToEx(inst->hdcGraph, RetainingWidth - 1, PrevY, NULL); CurrY = inst->BitmapHeight - val1 * inst->ftPixelsPerPercent; LineTo(inst->hdcGraph, inst->BitmapWidth - 1, CurrY); }
SelectObject(inst->hdcGraph, inst->hPen0); PrevY = inst->BitmapHeight - Prev0 * inst->ftPixelsPerPercent; MoveToEx(inst->hdcGraph, RetainingWidth - 1, PrevY, NULL); CurrY = inst->BitmapHeight - val0 * inst->ftPixelsPerPercent; LineTo(inst->hdcGraph, inst->BitmapWidth - 1, CurrY);}
inline voidGraphCtrl_RedrawBitmap(PTM_GRAPH_CONTROL inst, INT h){ HDC hdcg; PBYTE t; RECT rc; INT i, j, y, x, p; FLOAT coef;
hdcg = inst->hdcGraph; rc.left = 0; rc.top = 0; rc.right = inst->BitmapWidth; rc.bottom = h; FillRect(hdcg, &rc, inst->hBrushBack);
SelectObject(hdcg, inst->hPenGrid);
for (p = inst->GridCellHeight - 1; p < inst->BitmapHeight; p += inst->GridCellHeight) { MoveToEx(hdcg, 0, p, NULL); LineTo(hdcg, inst->BitmapWidth, p); }
for (p = inst->BitmapWidth - inst->CurrShift - 1; p > 0; p -= inst->GridCellWidth) { MoveToEx(hdcg, p, 0, NULL); LineTo(hdcg, p, inst->BitmapHeight); }
coef = inst->ftPixelsPerPercent;
if (inst->DrawSecondaryPlot) { SelectObject(hdcg, inst->hPen1); t = inst->PointBuffer + inst->NumberOfPoints; x = inst->BitmapWidth - 1; j = inst->CurrIndex; y = h - *(t + j) * coef; MoveToEx(hdcg, x, y, NULL); for (i = 0; i < inst->NumberOfPoints; i++) { j = (j ? j : inst->NumberOfPoints) - 1; y = h - *(t + j) * coef; x -= PLOT_SHIFT; LineTo(hdcg, x, y); } }
SelectObject(hdcg, inst->hPen0); t = inst->PointBuffer; x = inst->BitmapWidth - 1; j = inst->CurrIndex; y = h - *(t + j) * coef; MoveToEx(hdcg, x, y, NULL);
for (i = 0; i < inst->NumberOfPoints; i++) { j = (j ? j : inst->NumberOfPoints) - 1; y = h - *(t + j) * coef; x -= PLOT_SHIFT; LineTo(hdcg, x, y); }}
inline voidGraphCtrl_RedrawOnHeightChange(PTM_GRAPH_CONTROL inst, INT nh){ HDC hdc; HBITMAP hbmOld;
inst->BitmapHeight = nh; inst->ftPixelsPerPercent = (FLOAT)nh / 100.00f;
hdc = GetDC(inst->hParentWnd); hbmOld = inst->hbmGraph; inst->hbmGraph = CreateCompatibleBitmap(hdc, inst->BitmapWidth, nh); SelectObject(inst->hdcGraph, inst->hbmGraph); DeleteObject(hbmOld); ReleaseDC(inst->hParentWnd, hdc);
GraphCtrl_RedrawBitmap(inst, nh);}
extern TM_GRAPH_CONTROL PerformancePageCpuUsageHistoryGraph;extern TM_GRAPH_CONTROL PerformancePageMemUsageHistoryGraph;extern HWND hPerformancePageCpuUsageHistoryGraph;extern HWND hPerformancePageMemUsageHistoryGraph;
INT_PTR CALLBACKGraphCtrl_WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam){ PTM_GRAPH_CONTROL graph;
switch (message) { case WM_ERASEBKGND: return TRUE; /* * Filter out mouse & keyboard messages */ // case WM_APPCOMMAND: case WM_CAPTURECHANGED: case WM_LBUTTONDBLCLK: case WM_LBUTTONDOWN: case WM_LBUTTONUP: case WM_MBUTTONDBLCLK: case WM_MBUTTONDOWN: case WM_MBUTTONUP: case WM_MOUSEACTIVATE: case WM_MOUSEHOVER: case WM_MOUSELEAVE: case WM_MOUSEMOVE: // case WM_MOUSEWHEEL: case WM_NCHITTEST: case WM_NCLBUTTONDBLCLK: case WM_NCLBUTTONDOWN: case WM_NCLBUTTONUP: case WM_NCMBUTTONDBLCLK: case WM_NCMBUTTONDOWN: case WM_NCMBUTTONUP: // case WM_NCMOUSEHOVER: // case WM_NCMOUSELEAVE: case WM_NCMOUSEMOVE: case WM_NCRBUTTONDBLCLK: case WM_NCRBUTTONDOWN: case WM_NCRBUTTONUP: // case WM_NCXBUTTONDBLCLK: // case WM_NCXBUTTONDOWN: // case WM_NCXBUTTONUP: case WM_RBUTTONDBLCLK: case WM_RBUTTONDOWN: case WM_RBUTTONUP: // case WM_XBUTTONDBLCLK: // case WM_XBUTTONDOWN: // case WM_XBUTTONUP: case WM_ACTIVATE: case WM_CHAR: case WM_DEADCHAR: case WM_GETHOTKEY: case WM_HOTKEY: case WM_KEYDOWN: case WM_KEYUP: case WM_KILLFOCUS: case WM_SETFOCUS: case WM_SETHOTKEY: case WM_SYSCHAR: case WM_SYSDEADCHAR: case WM_SYSKEYDOWN: case WM_SYSKEYUP: return 0;
case WM_NCCALCSIZE: return 0;
case WM_SIZE: { if (hWnd == hPerformancePageCpuUsageHistoryGraph) graph = &PerformancePageCpuUsageHistoryGraph; else if (hWnd == hPerformancePageMemUsageHistoryGraph) graph = &PerformancePageMemUsageHistoryGraph; else return 0;
if (HIWORD(lParam) != graph->BitmapHeight) { GraphCtrl_RedrawOnHeightChange(graph, HIWORD(lParam)); } InvalidateRect(hWnd, NULL, FALSE);
return 0; }
case WM_PAINT: { RECT rcClient; HDC hdc; PAINTSTRUCT ps;
if (hWnd == hPerformancePageCpuUsageHistoryGraph) graph = &PerformancePageCpuUsageHistoryGraph; else if (hWnd == hPerformancePageMemUsageHistoryGraph) graph = &PerformancePageMemUsageHistoryGraph; else return 0;
hdc = BeginPaint(hWnd, &ps); GetClientRect(hWnd, &rcClient); BitBlt(hdc, 0, 0, rcClient.right, rcClient.bottom, graph->hdcGraph, graph->BitmapWidth - rcClient.right, 0, SRCCOPY); EndPaint(hWnd, &ps); return 0; } }
/* * We pass on all non-handled messages */ return CallWindowProcW(OldGraphCtrlWndProc, hWnd, message, wParam, lParam);}