📄 graph.c
字号:
/*
* ReactOS Task Manager
*
* graph.cpp
*
* Copyright (C) 1999 - 2001 Brian Palmer <brianp@reactos.org>
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <precomp.h>
int nlastBarsUsed = 0;
WNDPROC OldGraphWndProc;
void Graph_DrawCpuUsageGraph(HDC hDC, HWND hWnd);
void Graph_DrawMemUsageGraph(HDC hDC, HWND hWnd);
void Graph_DrawMemUsageHistoryGraph(HDC hDC, HWND hWnd);
INT_PTR CALLBACK
Graph_WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
HDC hdc;
PAINTSTRUCT ps;
LONG WindowId;
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:
case WM_NCCALCSIZE:
return 0;
case WM_PAINT:
hdc = BeginPaint(hWnd, &ps);
WindowId = GetWindowLong(hWnd, GWL_ID);
switch (WindowId)
{
case IDC_CPU_USAGE_GRAPH:
Graph_DrawCpuUsageGraph(hdc, hWnd);
break;
case IDC_MEM_USAGE_GRAPH:
Graph_DrawMemUsageGraph(hdc, hWnd);
break;
case IDC_MEM_USAGE_HISTORY_GRAPH:
Graph_DrawMemUsageHistoryGraph(hdc, hWnd);
break;
}
EndPaint(hWnd, &ps);
return 0;
}
/*
* We pass on all non-handled messages
*/
return CallWindowProc((WNDPROC)OldGraphWndProc, hWnd, message, wParam, lParam);
}
void Graph_DrawCpuUsageGraph(HDC hDC, HWND hWnd)
{
RECT rcClient;
RECT rcBarLeft;
RECT rcBarRight;
RECT rcText;
COLORREF crPrevForeground;
TCHAR Text[260];
HFONT hFont, hOldFont;
ULONG CpuUsage;
ULONG CpuKernelUsage;
int nBars;
int nBarsUsed;
/* Bottom bars that are "used", i.e. are bright green, representing used cpu time */
int nBarsUsedKernel;
/* Bottom bars that are "used", i.e. are bright green, representing used cpu kernel time */
int nBarsFree;
/* Top bars that are "unused", i.e. are dark green, representing free cpu time */
int i;
/*
* Get the client area rectangle
*/
GetClientRect(hWnd, &rcClient);
/*
* Fill it with blackness
*/
FillSolidRect(hDC, &rcClient, RGB(0, 0, 0));
/*
* Get the CPU usage
*/
CpuUsage = PerfDataGetProcessorUsage();
if (CpuUsage <= 0) CpuUsage = 0;
if (CpuUsage > 100) CpuUsage = 100;
_stprintf(Text, _T("%d%%"), (int)CpuUsage);
/*
* Draw the font text onto the graph
*/
rcText = rcClient;
InflateRect(&rcText, -2, -2);
crPrevForeground = SetTextColor(hDC, RGB(0, 255, 0));
hFont = GetStockObject(DEFAULT_GUI_FONT);
hOldFont = SelectObject(hDC, hFont);
DrawText(hDC, Text, -1, &rcText, DT_BOTTOM | DT_CENTER | DT_NOPREFIX | DT_SINGLELINE);
SelectObject(hDC, hOldFont);
SetTextColor(hDC, crPrevForeground);
/*
* Now we have to draw the graph
* So first find out how many bars we can fit
*/
nBars = ((rcClient.bottom - rcClient.top) - 25) / 3;
nBarsUsed = (nBars * CpuUsage) / 100;
if ((CpuUsage) && (nBarsUsed == 0))
{
nBarsUsed = 1;
}
nBarsFree = nBars - (nlastBarsUsed>nBarsUsed ? nlastBarsUsed : nBarsUsed);
if (TaskManagerSettings.ShowKernelTimes)
{
CpuKernelUsage = PerfDataGetProcessorSystemUsage();
if (CpuKernelUsage <= 0) CpuKernelUsage = 0;
if (CpuKernelUsage >= 100) CpuKernelUsage = 100;
nBarsUsedKernel = (nBars * CpuKernelUsage) / 100;
}
else
{
nBarsUsedKernel = 0;
}
/*
* Now draw the bar graph
*/
rcBarLeft.left = ((rcClient.right - rcClient.left) - 33) / 2;
rcBarLeft.right = rcBarLeft.left + 16;
rcBarRight.left = rcBarLeft.left + 17;
rcBarRight.right = rcBarLeft.right + 17;
rcBarLeft.top = rcBarRight.top = 5;
rcBarLeft.bottom = rcBarRight.bottom = 7;
if (nBarsUsed < 0) nBarsUsed = 0;
if (nBarsUsed > nBars) nBarsUsed = nBars;
if (nBarsFree < 0) nBarsFree = 0;
if (nBarsFree > nBars) nBarsFree = nBars;
if (nBarsUsedKernel < 0) nBarsUsedKernel = 0;
if (nBarsUsedKernel > nBars) nBarsUsedKernel = nBars;
/*
* Draw the "free" bars
*/
for (i=0; i<nBarsFree; i++)
{
FillSolidRect(hDC, &rcBarLeft, DARK_GREEN);
FillSolidRect(hDC, &rcBarRight, DARK_GREEN);
rcBarLeft.top += 3;
rcBarLeft.bottom += 3;
rcBarRight.top += 3;
rcBarRight.bottom += 3;
}
/*
* Draw the last "used" bars
*/
if ((nlastBarsUsed - nBarsUsed) > 0) {
for (i=0; i< (nlastBarsUsed - nBarsUsed); i++)
{
if (nlastBarsUsed > 5000) nlastBarsUsed = 5000;
FillSolidRect(hDC, &rcBarLeft, MEDIUM_GREEN);
FillSolidRect(hDC, &rcBarRight, MEDIUM_GREEN);
rcBarLeft.top += 3;
rcBarLeft.bottom += 3;
rcBarRight.top += 3;
rcBarRight.bottom += 3;
}
}
nlastBarsUsed = nBarsUsed;
/*
* Draw the "used" bars
*/
for (i=0; i<nBarsUsed; i++)
{
if (nBarsUsed > 5000) nBarsUsed = 5000;
FillSolidRect(hDC, &rcBarLeft, BRIGHT_GREEN);
FillSolidRect(hDC, &rcBarRight, BRIGHT_GREEN);
rcBarLeft.top += 3;
rcBarLeft.bottom += 3;
rcBarRight.top += 3;
rcBarRight.bottom += 3;
}
/*
* Draw the "used" kernel bars
*/
rcBarLeft.top -=3;
rcBarLeft.bottom -=3;
rcBarRight.top -=3;
rcBarRight.bottom -=3;
for (i=0; i<nBarsUsedKernel; i++)
{
FillSolidRect(hDC, &rcBarLeft, RED);
FillSolidRect(hDC, &rcBarRight, RED);
rcBarLeft.top -=3;
rcBarLeft.bottom -=3;
rcBarRight.top -=3;
rcBarRight.bottom -=3;
}
}
void Graph_DrawMemUsageGraph(HDC hDC, HWND hWnd)
{
RECT rcClient;
RECT rcBarLeft;
RECT rcBarRight;
RECT rcText;
COLORREF crPrevForeground;
TCHAR Text[260];
HFONT hFont, hOldFont;
ULONGLONG CommitChargeTotal;
ULONGLONG CommitChargeLimit;
int nBars;
int nBarsUsed = 0;
/* Bottom bars that are "used", i.e. are bright green, representing used memory */
int nBarsFree;
/* Top bars that are "unused", i.e. are dark green, representing free memory */
int i;
/*
* Get the client area rectangle
*/
GetClientRect(hWnd, &rcClient);
/*
* Fill it with blackness
*/
FillSolidRect(hDC, &rcClient, RGB(0, 0, 0));
/*
* Get the memory usage
*/
CommitChargeTotal = (ULONGLONG)PerfDataGetCommitChargeTotalK();
CommitChargeLimit = (ULONGLONG)PerfDataGetCommitChargeLimitK();
if (CommitChargeTotal > 1024)
_stprintf(Text, _T("%d MB"), (int)(CommitChargeTotal / 1024));
else
_stprintf(Text, _T("%d K"), (int)CommitChargeTotal);
/*
* Draw the font text onto the graph
*/
rcText = rcClient;
InflateRect(&rcText, -2, -2);
crPrevForeground = SetTextColor(hDC, RGB(0, 255, 0));
hFont = GetStockObject(DEFAULT_GUI_FONT);
hOldFont = SelectObject(hDC, hFont);
DrawText(hDC, Text, -1, &rcText, DT_BOTTOM | DT_CENTER | DT_NOPREFIX | DT_SINGLELINE);
SelectObject(hDC, hOldFont);
SetTextColor(hDC, crPrevForeground);
/*
* Now we have to draw the graph
* So first find out how many bars we can fit
*/
nBars = ((rcClient.bottom - rcClient.top) - 25) / 3;
if (CommitChargeLimit)
nBarsUsed = (nBars * (int)((CommitChargeTotal * 100) / CommitChargeLimit)) / 100;
nBarsFree = nBars - nBarsUsed;
if (nBarsUsed < 0) nBarsUsed = 0;
if (nBarsUsed > nBars) nBarsUsed = nBars;
if (nBarsFree < 0) nBarsFree = 0;
if (nBarsFree > nBars) nBarsFree = nBars;
/*
* Now draw the bar graph
*/
rcBarLeft.left = ((rcClient.right - rcClient.left) - 33) / 2;
rcBarLeft.right = rcBarLeft.left + 16;
rcBarRight.left = rcBarLeft.left + 17;
rcBarRight.right = rcBarLeft.right + 17;
rcBarLeft.top = rcBarRight.top = 5;
rcBarLeft.bottom = rcBarRight.bottom = 7;
/*
* Draw the "free" bars
*/
for (i=0; i<nBarsFree; i++)
{
FillSolidRect(hDC, &rcBarLeft, DARK_GREEN);
FillSolidRect(hDC, &rcBarRight, DARK_GREEN);
rcBarLeft.top += 3;
rcBarLeft.bottom += 3;
rcBarRight.top += 3;
rcBarRight.bottom += 3;
}
/*
* Draw the "used" bars
*/
for (i=0; i<nBarsUsed; i++)
{
FillSolidRect(hDC, &rcBarLeft, BRIGHT_GREEN);
FillSolidRect(hDC, &rcBarRight, BRIGHT_GREEN);
rcBarLeft.top += 3;
rcBarLeft.bottom += 3;
rcBarRight.top += 3;
rcBarRight.bottom += 3;
}
}
void Graph_DrawMemUsageHistoryGraph(HDC hDC, HWND hWnd)
{
RECT rcClient;
ULONGLONG CommitChargeLimit;
int i;
static int offset = 0;
if (offset++ >= 10)
offset = 0;
/*
* Get the client area rectangle
*/
GetClientRect(hWnd, &rcClient);
/*
* Fill it with blackness
*/
FillSolidRect(hDC, &rcClient, RGB(0, 0, 0));
/*
* Get the memory usage
*/
CommitChargeLimit = (ULONGLONG)PerfDataGetCommitChargeLimitK();
/*
* Draw the graph background
*
* Draw the horizontal bars
*/
for (i=0; i<rcClient.bottom; i++)
{
if ((i % 11) == 0)
{
/* FillSolidRect2(hDC, 0, i, rcClient.right, 1, DARK_GREEN); */
}
}
/*
* Draw the vertical bars
*/
for (i=11; i<rcClient.right + offset; i++)
{
if ((i % 11) == 0)
{
/* FillSolidRect2(hDC, i - offset, 0, 1, rcClient.bottom, DARK_GREEN); */
}
}
/*
* Draw the memory usage
*/
for (i=rcClient.right; i>=0; i--)
{
}
}
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -