programs/taskmgr/graph.c

   1 /*
   2  *  ReactOS Task Manager
   3  *
   4  *  graph.c
   5  *
   6  *  Copyright (C) 1999 - 2001  Brian Palmer  <brianp@reactos.org>
   7  *  Copyright (C) 2008  Vladimir Pankratov
   8  *
   9  * This library is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public
  11  * License as published by the Free Software Foundation; either
  12  * version 2.1 of the License, or (at your option) any later version.
  13  *
  14  * This library is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with this library; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  22  */
  23
  24 #define WIN32_LEAN_AND_MEAN    /* Exclude rarely-used stuff from Windows headers */
  25 #include <windows.h>
  26 #include <commctrl.h>
  27 #include <stdlib.h>
  28 #include <memory.h>
  29 #include <stdio.h>
  30 #include <winnt.h>
  31
  32 #include "wine/unicode.h"
  33 #include "taskmgr.h"
  34 #include "perfdata.h"
  35
  36 #define BRIGHT_GREEN    RGB(0, 255, 0)
  37 #define DARK_GREEN      RGB(0, 130, 0)
  38 #define RED             RGB(255, 0, 0)
  39
  40
  41 WNDPROC             OldGraphWndProc;
  42
  43 static void Graph_DrawCpuUsageGraph(HDC hDC, HWND hWnd)
  44 {
  45     RECT            rcClient;
  46     RECT            rcBarLeft;
  47     RECT            rcBarRight;
  48     WCHAR            Text[256];
  49     ULONG            CpuUsage;
  50     ULONG            CpuKernelUsage;
  51     int                nBars;
  52     int                nBarsUsed;
  53 /* Bottom bars that are "used", i.e. are bright green, representing used cpu time */
  54     int                nBarsUsedKernel;
  55 /* Bottom bars that are "used", i.e. are bright green, representing used cpu kernel time */
  56     int                nBarsFree;
  57 /* Top bars that are "unused", i.e. are dark green, representing free cpu time */
  58     int                i;
  59
  60     static const WCHAR    wszFormatI[] = {'%','d','%','%',0};
  61     static const WCHAR    wszFormatII[] = {' ',' ','%','d','%','%',0};
  62     static const WCHAR    wszFormatIII[] = {' ','%','d','%','%',0};
  63
  64     /*
  65      * Get the client area rectangle
  66      */
  67     GetClientRect(hWnd, &rcClient);
  68
  69     /*
  70      * Fill it with blackness
  71      */
  72     FillSolidRect(hDC, &rcClient, RGB(0, 0, 0));
  73
  74     /*
  75      * Get the CPU usage
  76      */
  77     CpuUsage = PerfDataGetProcessorUsage();
  78     CpuKernelUsage = PerfDataGetProcessorSystemUsage();
  79
  80     /*
  81      * Check and see how many digits it will take
  82      * so we get the indentation right every time.
  83      */
  84     if (CpuUsage == 100)
  85     {
  86         sprintfW(Text, wszFormatI, (int)CpuUsage);
  87     }
  88     else if (CpuUsage < 10)
  89     {
  90         sprintfW(Text, wszFormatII, (int)CpuUsage);
  91     }
  92     else
  93     {
  94         sprintfW(Text, wszFormatIII, (int)CpuUsage);
  95     }
  96
  97     /*
  98      * Draw the font text onto the graph
  99      * The bottom 20 pixels are reserved for the text
 100      */
 101     Font_DrawText(hDC, Text, ((rcClient.right - rcClient.left) - 32) / 2, rcClient.bottom - 11 - 5);
 102
 103     /*
 104      * Now we have to draw the graph
 105      * So first find out how many bars we can fit
 106      */
 107     nBars = ((rcClient.bottom - rcClient.top) - 25) / 3;
 108     nBarsUsed = (nBars * CpuUsage) / 100;
 109     if ((CpuUsage) && (nBarsUsed == 0))
 110     {
 111         nBarsUsed = 1;
 112     }
 113     nBarsFree = nBars - nBarsUsed;
 114     if (TaskManagerSettings.ShowKernelTimes)
 115     {
 116         nBarsUsedKernel = ((nBars * 2) * CpuKernelUsage) / 100;
 117         nBarsUsed -= (nBarsUsedKernel / 2);
 118     }
 119     else
 120     {
 121         nBarsUsedKernel = 0;
 122     }
 123
 124     /*
 125      * Now draw the bar graph
 126      */
 127     rcBarLeft.left =  ((rcClient.right - rcClient.left) - 33) / 2;
 128     rcBarLeft.right =  rcBarLeft.left + 16;
 129     rcBarRight.left = rcBarLeft.left + 17;
 130     rcBarRight.right = rcBarLeft.right + 17;
 131     rcBarLeft.top = rcBarRight.top = 5;
 132     rcBarLeft.bottom = rcBarRight.bottom = 7;
 133
 134     if (nBarsUsed < 0)     nBarsUsed = 0;
 135     if (nBarsUsed > nBars) nBarsUsed = nBars;
 136
 137     if (nBarsFree < 0)     nBarsFree = 0;
 138     if (nBarsFree > nBars) nBarsFree = nBars;
 139
 140     if (nBarsUsedKernel < 0)     nBarsUsedKernel = 0;
 141     if (nBarsUsedKernel > nBars) nBarsUsedKernel = nBars;
 142
 143     /*
 144      * Draw the "free" bars
 145      */
 146     for (i=0; i<nBarsFree; i++)
 147     {
 148         FillSolidRect(hDC, &rcBarLeft, DARK_GREEN);
 149         FillSolidRect(hDC, &rcBarRight, DARK_GREEN);
 150
 151         rcBarLeft.top += 3;
 152         rcBarLeft.bottom += 3;
 153
 154         rcBarRight.top += 3;
 155         rcBarRight.bottom += 3;
 156     }
 157
 158     /*
 159      * Draw the "used" bars
 160      */
 161     for (i=0; i<nBarsUsed; i++)
 162     {
 163         if (nBarsUsed > 5000) nBarsUsed = 5000;
 164
 165         FillSolidRect(hDC, &rcBarLeft, BRIGHT_GREEN);
 166         FillSolidRect(hDC, &rcBarRight, BRIGHT_GREEN);
 167
 168         rcBarLeft.top += 3;
 169         rcBarLeft.bottom += 3;
 170
 171         rcBarRight.top += 3;
 172         rcBarRight.bottom += 3;
 173     }
 174
 175     /*
 176      * Draw the "used" kernel bars
 177      */
 178     rcBarLeft.bottom--;
 179     rcBarRight.bottom--;
 180     if (nBarsUsedKernel && nBarsUsedKernel % 2)
 181     {
 182         rcBarLeft.top -= 2;
 183         rcBarLeft.bottom -= 2;
 184
 185         rcBarRight.top -= 2;
 186         rcBarRight.bottom -= 2;
 187
 188         FillSolidRect(hDC, &rcBarLeft, RED);
 189         FillSolidRect(hDC, &rcBarRight, RED);
 190
 191         rcBarLeft.top += 2;
 192         rcBarLeft.bottom += 2;
 193
 194         rcBarRight.top += 2;
 195         rcBarRight.bottom += 2;
 196
 197         nBarsUsedKernel--;
 198     }
 199     for (i=0; i<nBarsUsedKernel; i++)
 200     {
 201         if (nBarsUsedKernel > 5000) nBarsUsedKernel = 5000;
 202
 203         FillSolidRect(hDC, &rcBarLeft, RED);
 204         FillSolidRect(hDC, &rcBarRight, RED);
 205
 206         rcBarLeft.top++;
 207         rcBarLeft.bottom++;
 208
 209         rcBarRight.top++;
 210         rcBarRight.bottom++;
 211
 212         if (i % 2)
 213         {
 214             rcBarLeft.top++;
 215             rcBarLeft.bottom++;
 216
 217             rcBarRight.top++;
 218             rcBarRight.bottom++;
 219         }
 220     }
 221 }
 222
 223 static void Graph_DrawMemUsageGraph(HDC hDC, HWND hWnd)
 224 {
 225     RECT            rcClient;
 226     RECT            rcBarLeft;
 227     RECT            rcBarRight;
 228     WCHAR            Text[256];
 229     ULONGLONG        CommitChargeTotal;
 230     ULONGLONG        CommitChargeLimit;
 231     int                nBars;
 232     int                nBarsUsed = 0;
 233 /* Bottom bars that are "used", i.e. are bright green, representing used memory */
 234     int                nBarsFree;
 235 /* Top bars that are "unused", i.e. are dark green, representing free memory */
 236     int                i;
 237
 238     static const WCHAR    wszFormat[] = {'%','d','K',0};
 239
 240     /*
 241      * Get the client area rectangle
 242      */
 243     GetClientRect(hWnd, &rcClient);
 244
 245     /*
 246      * Fill it with blackness
 247      */
 248     FillSolidRect(hDC, &rcClient, RGB(0, 0, 0));
 249
 250     /*
 251      * Get the memory usage
 252      */
 253     CommitChargeTotal = (ULONGLONG)PerfDataGetCommitChargeTotalK();
 254     CommitChargeLimit = (ULONGLONG)PerfDataGetCommitChargeLimitK();
 255
 256     sprintfW(Text, wszFormat, (int)CommitChargeTotal);
 257
 258     /*
 259      * Draw the font text onto the graph
 260      * The bottom 20 pixels are reserved for the text
 261      */
 262     Font_DrawText(hDC, Text, ((rcClient.right - rcClient.left) - (strlenW(Text) * 8)) / 2, rcClient.bottom - 11 - 5);
 263
 264     /*
 265      * Now we have to draw the graph
 266      * So first find out how many bars we can fit
 267      */
 268     nBars = ((rcClient.bottom - rcClient.top) - 25) / 3;
 269         if (CommitChargeLimit)
 270     nBarsUsed = (nBars * (int)((CommitChargeTotal * 100) / CommitChargeLimit)) / 100;
 271     nBarsFree = nBars - nBarsUsed;
 272
 273     if (nBarsUsed < 0)     nBarsUsed = 0;
 274     if (nBarsUsed > nBars) nBarsUsed = nBars;
 275
 276     if (nBarsFree < 0)     nBarsFree = 0;
 277     if (nBarsFree > nBars) nBarsFree = nBars;
 278
 279     /*
 280      * Now draw the bar graph
 281      */
 282     rcBarLeft.left =  ((rcClient.right - rcClient.left) - 33) / 2;
 283     rcBarLeft.right =  rcBarLeft.left + 16;
 284     rcBarRight.left = rcBarLeft.left + 17;
 285     rcBarRight.right = rcBarLeft.right + 17;
 286     rcBarLeft.top = rcBarRight.top = 5;
 287     rcBarLeft.bottom = rcBarRight.bottom = 7;
 288
 289     /*
 290      * Draw the "free" bars
 291      */
 292     for (i=0; i<nBarsFree; i++)
 293     {
 294         FillSolidRect(hDC, &rcBarLeft, DARK_GREEN);
 295         FillSolidRect(hDC, &rcBarRight, DARK_GREEN);
 296
 297         rcBarLeft.top += 3;
 298         rcBarLeft.bottom += 3;
 299
 300         rcBarRight.top += 3;
 301         rcBarRight.bottom += 3;
 302     }
 303
 304     /*
 305      * Draw the "used" bars
 306      */
 307     for (i=0; i<nBarsUsed; i++)
 308     {
 309         FillSolidRect(hDC, &rcBarLeft, BRIGHT_GREEN);
 310         FillSolidRect(hDC, &rcBarRight, BRIGHT_GREEN);
 311
 312         rcBarLeft.top += 3;
 313         rcBarLeft.bottom += 3;
 314
 315         rcBarRight.top += 3;
 316         rcBarRight.bottom += 3;
 317     }
 318 }
 319
 320 static void Graph_DrawMemUsageHistoryGraph(HDC hDC, HWND hWnd)
 321 {
 322     RECT            rcClient;
 323     int                i;
 324     static int        offset = 0;
 325
 326     if (offset++ >= 10)
 327         offset = 0;
 328
 329     /*
 330      * Get the client area rectangle
 331      */
 332     GetClientRect(hWnd, &rcClient);
 333
 334     /*
 335      * Fill it with blackness
 336      */
 337     FillSolidRect(hDC, &rcClient, RGB(0, 0, 0));
 338
 339     /*
 340      * Draw the graph background
 341      *
 342      * Draw the horizontal bars
 343      */
 344     for (i=0; i<rcClient.bottom; i++)
 345     {
 346         if ((i % 11) == 0)
 347         {
 348             /* FillSolidRect2(hDC, 0, i, rcClient.right, 1, DARK_GREEN);  */
 349         }
 350     }
 351     /*
 352      * Draw the vertical bars
 353      */
 354     for (i=11; i<rcClient.right + offset; i++)
 355     {
 356         if ((i % 11) == 0)
 357         {
 358             /* FillSolidRect2(hDC, i - offset, 0, 1, rcClient.bottom, DARK_GREEN);  */
 359         }
 360     }
 361
 362     /*
 363      * Draw the memory usage
 364      */
 365     for (i=rcClient.right; i>=0; i--)
 366     {
 367     }
 368 }
 369
 370 INT_PTR CALLBACK
 371 Graph_WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 372 {
 373     HDC                hdc;
 374     PAINTSTRUCT        ps;
 375     LONG            WindowId;
 376
 377     switch (message)
 378     {
 379     case WM_ERASEBKGND:
 380         return TRUE;
 381
 382     /*
 383      * Filter out mouse  & keyboard messages
 384      */
 385     /* case WM_APPCOMMAND: */
 386     case WM_CAPTURECHANGED:
 387     case WM_LBUTTONDBLCLK:
 388     case WM_LBUTTONDOWN:
 389     case WM_LBUTTONUP:
 390     case WM_MBUTTONDBLCLK:
 391     case WM_MBUTTONDOWN:
 392     case WM_MBUTTONUP:
 393     case WM_MOUSEACTIVATE:
 394     case WM_MOUSEHOVER:
 395     case WM_MOUSELEAVE:
 396     case WM_MOUSEMOVE:
 397     /* case WM_MOUSEWHEEL: */
 398     case WM_NCHITTEST:
 399     case WM_NCLBUTTONDBLCLK:
 400     case WM_NCLBUTTONDOWN:
 401     case WM_NCLBUTTONUP:
 402     case WM_NCMBUTTONDBLCLK:
 403     case WM_NCMBUTTONDOWN:
 404     case WM_NCMBUTTONUP:
 405     /* case WM_NCMOUSEHOVER: */
 406     /* case WM_NCMOUSELEAVE: */
 407     case WM_NCMOUSEMOVE:
 408     case WM_NCRBUTTONDBLCLK:
 409     case WM_NCRBUTTONDOWN:
 410     case WM_NCRBUTTONUP:
 411     /* case WM_NCXBUTTONDBLCLK: */
 412     /* case WM_NCXBUTTONDOWN: */
 413     /* case WM_NCXBUTTONUP: */
 414     case WM_RBUTTONDBLCLK:
 415     case WM_RBUTTONDOWN:
 416     case WM_RBUTTONUP:
 417     /* case WM_XBUTTONDBLCLK: */
 418     /* case WM_XBUTTONDOWN: */
 419     /* case WM_XBUTTONUP: */
 420     case WM_ACTIVATE:
 421     case WM_CHAR:
 422     case WM_DEADCHAR:
 423     case WM_GETHOTKEY:
 424     case WM_HOTKEY:
 425     case WM_KEYDOWN:
 426     case WM_KEYUP:
 427     case WM_KILLFOCUS:
 428     case WM_SETFOCUS:
 429     case WM_SETHOTKEY:
 430     case WM_SYSCHAR:
 431     case WM_SYSDEADCHAR:
 432     case WM_SYSKEYDOWN:
 433     case WM_SYSKEYUP:
 434
 435     case WM_NCCALCSIZE:
 436         return 0;
 437
 438     case WM_PAINT:
 439
 440         hdc = BeginPaint(hWnd, &ps);
 441
 442         WindowId = GetWindowLongPtrW(hWnd, GWLP_ID);
 443
 444         switch (WindowId)
 445         {
 446         case IDC_CPU_USAGE_GRAPH:
 447             Graph_DrawCpuUsageGraph(hdc, hWnd);
 448             break;
 449         case IDC_MEM_USAGE_GRAPH:
 450             Graph_DrawMemUsageGraph(hdc, hWnd);
 451             break;
 452         case IDC_MEM_USAGE_HISTORY_GRAPH:
 453             Graph_DrawMemUsageHistoryGraph(hdc, hWnd);
 454             break;
 455         }
 456
 457         EndPaint(hWnd, &ps);
 458
 459         return 0;
 460
 461     }
 462
 463     /*
 464      * We pass on all non-handled messages
 465      */
 466     return CallWindowProcW(OldGraphWndProc, hWnd, message, wParam, lParam);
 467 }