reactos/dll/cpl/desk/preview.c

   1 /*
   2  * PROJECT:     ReactOS Desktop Control Panel
   3  * LICENSE:     GPL - See COPYING in the top level directory
   4  * FILE:        lib/cpl/desk/preview.c
   5  * PURPOSE:     Draws the preview control
   6  * COPYRIGHT:   Copyright 2006, 2007 Eric Kohl
   7  */
   8
   9 #include "desk.h"
  10 #include "preview.h"
  11
  12 static const TCHAR szPreviewWndClass[] = TEXT("PreviewWndClass");
  13
  14 typedef struct _PREVIEW_DATA
  15 {
  16     HWND hwndParent;
  17
  18     DWORD clrSysColor[COLOR_MENUBAR];
  19
  20     HBRUSH hbrScrollbar;
  21     HBRUSH hbrDesktop;
  22     HBRUSH hbrWindow;
  23
  24     INT cxEdge;
  25     INT cyEdge;
  26
  27     INT cySizeFrame;
  28
  29     INT cyCaption;
  30     INT cyBorder;
  31     INT cyMenu;
  32     INT cxScrollbar;
  33
  34     RECT rcDesktop;
  35     RECT rcInactiveFrame;
  36     RECT rcInactiveCaption;
  37     RECT rcInactiveCaptionButtons;
  38
  39     RECT rcActiveFrame;
  40     RECT rcActiveCaption;
  41     RECT rcActiveCaptionButtons;
  42     RECT rcActiveMenuBar;
  43     RECT rcSelectedMenuItem;
  44     RECT rcActiveClient;
  45     RECT rcActiveScroll;
  46
  47     RECT rcDialogFrame;
  48     RECT rcDialogCaption;
  49     RECT rcDialogCaptionButtons;
  50     RECT rcDialogClient;
  51
  52     RECT rcDialogButton;
  53
  54     LPTSTR lpInAct;
  55     LPTSTR lpAct;
  56     LPTSTR lpWinTxt;
  57     LPTSTR lpMessBox;
  58     LPTSTR lpMessText;
  59     LPTSTR lpButText;
  60
  61     LOGFONT lfCaptionFont;
  62     LOGFONT lfMenuFont;
  63     LOGFONT lfMessageFont;
  64
  65     HFONT hCaptionFont;
  66     HFONT hMenuFont;
  67     HFONT hMessageFont;
  68
  69     HMENU hMenu;
  70
  71 } PREVIEW_DATA, *PPREVIEW_DATA;
  72
  73
  74
  75 static VOID
  76 DrawCaptionButtons(HDC hdc, LPRECT lpRect, BOOL bMinMax, int x)
  77 {
  78     RECT rc3;
  79     RECT rc4;
  80     RECT rc5;
  81
  82     rc3.left = lpRect->right - 2 - x;
  83     rc3.top = lpRect->top + 2;
  84     rc3.right = lpRect->right - 2;
  85     rc3.bottom = lpRect->bottom - 2;
  86
  87     DrawFrameControl(hdc, &rc3, DFC_CAPTION, DFCS_CAPTIONCLOSE);
  88
  89     if (bMinMax)
  90     {
  91         rc4.left = rc3.left - x - 2;
  92         rc4.top = rc3.top;
  93         rc4.right = rc3.right - x - 2;
  94         rc4.bottom = rc3.bottom;
  95
  96         DrawFrameControl(hdc, &rc4, DFC_CAPTION, DFCS_CAPTIONMAX);
  97
  98         rc5.left = rc4.left - x;
  99         rc5.top = rc4.top;
 100         rc5.right = rc4.right - x;
 101         rc5.bottom = rc4.bottom;
 102
 103         DrawFrameControl(hdc, &rc5, DFC_CAPTION, DFCS_CAPTIONMIN);
 104     }
 105 }
 106
 107
 108 static VOID
 109 DrawScrollbar(HDC hdc, LPRECT rc, HBRUSH hbrScrollbar)
 110 {
 111     RECT rcTop;
 112     RECT rcBottom;
 113     RECT rcMiddle;
 114     int width;
 115
 116     width = rc->right - rc->left;
 117
 118     rcTop.left = rc->left;
 119     rcTop.right = rc->right;
 120     rcTop.top = rc->top;
 121     rcTop.bottom = rc->top + width;
 122
 123     rcMiddle.left = rc->left;
 124     rcMiddle.right = rc->right;
 125     rcMiddle.top = rc->top + width;
 126     rcMiddle.bottom = rc->bottom - width;
 127
 128     rcBottom.left = rc->left;
 129     rcBottom.right = rc->right;
 130     rcBottom.top = rc->bottom - width;
 131     rcBottom.bottom = rc->bottom;
 132
 133     DrawFrameControl(hdc, &rcTop, DFC_SCROLL, DFCS_SCROLLUP);
 134     DrawFrameControl(hdc, &rcBottom, DFC_SCROLL, DFCS_SCROLLDOWN);
 135
 136     FillRect(hdc, &rcMiddle, hbrScrollbar);
 137 }
 138
 139
 140 static VOID
 141 OnCreate(HWND hwnd, PPREVIEW_DATA pPreviewData)
 142 {
 143     NONCLIENTMETRICS NonClientMetrics;
 144     INT i;
 145
 146     for (i = 0; i < COLOR_MENUBAR + 1; i++)
 147     {
 148         pPreviewData->clrSysColor[i] = GetSysColor(i);
 149     }
 150
 151     pPreviewData->hbrScrollbar = CreateSolidBrush(pPreviewData->clrSysColor[COLOR_SCROLLBAR]);
 152     pPreviewData->hbrDesktop = CreateSolidBrush(pPreviewData->clrSysColor[COLOR_DESKTOP]);
 153     pPreviewData->hbrWindow = CreateSolidBrush(pPreviewData->clrSysColor[COLOR_WINDOW]);
 154
 155     pPreviewData->cxEdge = GetSystemMetrics(SM_CXEDGE) - 2;
 156     pPreviewData->cyEdge = GetSystemMetrics(SM_CXEDGE) - 2;
 157
 158     pPreviewData->cySizeFrame = GetSystemMetrics(SM_CYSIZEFRAME) - 1;
 159
 160     pPreviewData->cyCaption = GetSystemMetrics(SM_CYCAPTION);
 161     pPreviewData->cyMenu = GetSystemMetrics(SM_CYMENU);
 162     pPreviewData->cxScrollbar = GetSystemMetrics(SM_CXVSCROLL);
 163     pPreviewData->cyBorder = GetSystemMetrics(SM_CYBORDER);
 164
 165     /* load font info */
 166     NonClientMetrics.cbSize = sizeof(NONCLIENTMETRICS);
 167     SystemParametersInfo(SPI_GETNONCLIENTMETRICS, sizeof(NONCLIENTMETRICS), &NonClientMetrics, 0);
 168
 169     pPreviewData->lfCaptionFont = NonClientMetrics.lfCaptionFont;
 170     pPreviewData->hCaptionFont = CreateFontIndirect(&pPreviewData->lfCaptionFont);
 171
 172     pPreviewData->lfMenuFont = NonClientMetrics.lfMenuFont;
 173     pPreviewData->hMenuFont = CreateFontIndirect(&pPreviewData->lfMenuFont);
 174
 175     pPreviewData->lfMessageFont = NonClientMetrics.lfMessageFont;
 176     pPreviewData->hMessageFont = CreateFontIndirect(&pPreviewData->lfMessageFont);
 177
 178     /* Load and modify the menu */
 179     pPreviewData->hMenu = LoadMenu(hApplet, MAKEINTRESOURCE(IDR_PREVIEW_MENU));
 180     EnableMenuItem(pPreviewData->hMenu,
 181                    1, MF_BYPOSITION | MF_GRAYED);
 182     HiliteMenuItem(hwnd, pPreviewData->hMenu,
 183                    2, MF_BYPOSITION | MF_HILITE);
 184
 185 //    GetMenuItemRect(hwnd, pPreviewData->hMenu,
 186 //                    2, &pPreviewData->rcSelectedMenuItem);
 187
 188     AllocAndLoadString(&pPreviewData->lpInAct, hApplet, IDS_INACTWIN);
 189     AllocAndLoadString(&pPreviewData->lpAct, hApplet, IDS_ACTWIN);
 190     AllocAndLoadString(&pPreviewData->lpWinTxt, hApplet, IDS_WINTEXT);
 191     AllocAndLoadString(&pPreviewData->lpMessBox, hApplet, IDS_MESSBOX);
 192     AllocAndLoadString(&pPreviewData->lpMessText, hApplet, IDS_MESSTEXT);
 193     AllocAndLoadString(&pPreviewData->lpButText, hApplet, IDS_BUTTEXT);
 194 }
 195
 196
 197 static VOID
 198 CalculateItemSize(PPREVIEW_DATA pPreviewData)
 199 {
 200     int width, height;
 201
 202     /* Calculate the inactive window rectangle */
 203     pPreviewData->rcInactiveFrame.left = pPreviewData->rcDesktop.left + 8;
 204     pPreviewData->rcInactiveFrame.top = pPreviewData->rcDesktop.top + 8;
 205     pPreviewData->rcInactiveFrame.right = pPreviewData->rcDesktop.right - 25;
 206     pPreviewData->rcInactiveFrame.bottom = pPreviewData->rcDesktop.bottom - 30;
 207
 208     /* Calculate the inactive caption rectangle */
 209     pPreviewData->rcInactiveCaption.left = pPreviewData->rcInactiveFrame.left + pPreviewData->cxEdge + pPreviewData->cySizeFrame + 1;
 210     pPreviewData->rcInactiveCaption.top = pPreviewData->rcInactiveFrame.top + pPreviewData->cyEdge + pPreviewData->cySizeFrame + 1;
 211     pPreviewData->rcInactiveCaption.right = pPreviewData->rcInactiveFrame.right - pPreviewData->cxEdge - pPreviewData->cySizeFrame - 1;
 212     pPreviewData->rcInactiveCaption.bottom = pPreviewData->rcInactiveCaption.top + pPreviewData->cyCaption - pPreviewData->cyBorder;
 213
 214     /* Calculate the inactive caption buttons rectangle */
 215     pPreviewData->rcInactiveCaptionButtons.left = pPreviewData->rcInactiveCaption.right - 2 - 2 - 3 * 16;
 216     pPreviewData->rcInactiveCaptionButtons.top = pPreviewData->rcInactiveCaption.top + 2;
 217     pPreviewData->rcInactiveCaptionButtons.right = pPreviewData->rcInactiveCaption.right - 2;
 218     pPreviewData->rcInactiveCaptionButtons.bottom = pPreviewData->rcInactiveCaption.bottom - 2;
 219
 220     /* Calculate the active window rectangle */
 221     pPreviewData->rcActiveFrame.left = pPreviewData->rcInactiveFrame.left + 3 + pPreviewData->cySizeFrame;
 222     pPreviewData->rcActiveFrame.top = pPreviewData->rcInactiveCaption.bottom + 1;
 223     pPreviewData->rcActiveFrame.right = pPreviewData->rcDesktop.right - 10;
 224     pPreviewData->rcActiveFrame.bottom = pPreviewData->rcDesktop.bottom - 25;
 225
 226     /* Calculate the active caption rectangle */
 227     pPreviewData->rcActiveCaption.left = pPreviewData->rcActiveFrame.left + pPreviewData->cxEdge + pPreviewData->cySizeFrame + 1;
 228     pPreviewData->rcActiveCaption.top = pPreviewData->rcActiveFrame.top + pPreviewData->cxEdge + pPreviewData->cySizeFrame + 1;
 229     pPreviewData->rcActiveCaption.right = pPreviewData->rcActiveFrame.right - pPreviewData->cxEdge - pPreviewData->cySizeFrame - 1;
 230     pPreviewData->rcActiveCaption.bottom = pPreviewData->rcActiveCaption.top + pPreviewData->cyCaption - pPreviewData->cyBorder;
 231
 232     /* Calculate the active caption buttons rectangle */
 233     pPreviewData->rcActiveCaptionButtons.left = pPreviewData->rcActiveCaption.right - 2 - 2 - 3 * 16;
 234     pPreviewData->rcActiveCaptionButtons.top = pPreviewData->rcActiveCaption.top + 2;
 235     pPreviewData->rcActiveCaptionButtons.right = pPreviewData->rcActiveCaption.right - 2;
 236     pPreviewData->rcActiveCaptionButtons.bottom = pPreviewData->rcActiveCaption.bottom - 2;
 237
 238     /* Calculate the active menu bar rectangle */
 239     pPreviewData->rcActiveMenuBar.left = pPreviewData->rcActiveFrame.left + pPreviewData->cxEdge + pPreviewData->cySizeFrame + 1;
 240     pPreviewData->rcActiveMenuBar.top = pPreviewData->rcActiveCaption.bottom + 1;
 241     pPreviewData->rcActiveMenuBar.right = pPreviewData->rcActiveFrame.right - pPreviewData->cxEdge - pPreviewData->cySizeFrame - 1;
 242     pPreviewData->rcActiveMenuBar.bottom = pPreviewData->rcActiveMenuBar.top + pPreviewData->cyMenu + 1;
 243
 244     /* Calculate the active client rectangle */
 245     pPreviewData->rcActiveClient.left = pPreviewData->rcActiveFrame.left + pPreviewData->cxEdge + pPreviewData->cySizeFrame + 1;
 246     pPreviewData->rcActiveClient.top = pPreviewData->rcActiveMenuBar.bottom;
 247     pPreviewData->rcActiveClient.right = pPreviewData->rcActiveFrame.right - pPreviewData->cxEdge - pPreviewData->cySizeFrame - 1;
 248     pPreviewData->rcActiveClient.bottom = pPreviewData->rcActiveFrame.bottom - pPreviewData->cyEdge - pPreviewData->cySizeFrame - 1;
 249
 250     /* Calculate the active scroll rectangle */
 251     pPreviewData->rcActiveScroll.left = pPreviewData->rcActiveClient.right - 2 - pPreviewData->cxScrollbar;
 252     pPreviewData->rcActiveScroll.top = pPreviewData->rcActiveClient.top + 2;
 253     pPreviewData->rcActiveScroll.right = pPreviewData->rcActiveClient.right - 2;
 254     pPreviewData->rcActiveScroll.bottom = pPreviewData->rcActiveClient.bottom - 2;
 255
 256
 257     /* Dialog window */
 258     pPreviewData->rcDialogFrame.left = pPreviewData->rcActiveClient.left + 4;
 259     pPreviewData->rcDialogFrame.top = (pPreviewData->rcDesktop.bottom * 60) / 100;
 260     pPreviewData->rcDialogFrame.right = (pPreviewData->rcDesktop.right * 65) / 100;
 261     pPreviewData->rcDialogFrame.bottom = pPreviewData->rcDesktop.bottom - 5;
 262
 263     /* Calculate the dialog caption rectangle */
 264     pPreviewData->rcDialogCaption.left = pPreviewData->rcDialogFrame.left + 3;
 265     pPreviewData->rcDialogCaption.top = pPreviewData->rcDialogFrame.top + 3;
 266     pPreviewData->rcDialogCaption.right = pPreviewData->rcDialogFrame.right - 3;
 267     pPreviewData->rcDialogCaption.bottom = pPreviewData->rcDialogFrame.top + pPreviewData->cyCaption + 1 + 1;
 268
 269     /* Calculate the inactive caption buttons rectangle */
 270     pPreviewData->rcDialogCaptionButtons.left = pPreviewData->rcDialogCaption.right - 2 - 16;
 271     pPreviewData->rcDialogCaptionButtons.top = pPreviewData->rcDialogCaption.top + 2;
 272     pPreviewData->rcDialogCaptionButtons.right = pPreviewData->rcDialogCaption.right - 2;
 273     pPreviewData->rcDialogCaptionButtons.bottom = pPreviewData->rcDialogCaption.bottom - 2;
 274
 275     /* Calculate the dialog client rectangle */
 276     pPreviewData->rcDialogClient.left = pPreviewData->rcDialogFrame.left + 3;
 277     pPreviewData->rcDialogClient.top = pPreviewData->rcDialogCaption.bottom + 1;
 278     pPreviewData->rcDialogClient.right = pPreviewData->rcDialogFrame.right - 3;
 279     pPreviewData->rcDialogClient.bottom = pPreviewData->rcDialogFrame.bottom - 3;
 280
 281     /* Calculate the dialog button rectangle */
 282     width = 80;
 283     height = 28;
 284
 285     pPreviewData->rcDialogButton.left =
 286         (pPreviewData->rcDialogClient.right + pPreviewData->rcDialogClient.left - width) / 2;
 287     pPreviewData->rcDialogButton.right = pPreviewData->rcDialogButton.left + width;
 288     pPreviewData->rcDialogButton.bottom = pPreviewData->rcDialogClient.bottom - 2;
 289     pPreviewData->rcDialogButton.top = pPreviewData->rcDialogButton.bottom - height;
 290 }
 291
 292
 293 static VOID
 294 OnSize(INT cx, INT cy, PPREVIEW_DATA pPreviewData)
 295 {
 296     /* Get Desktop rectangle */
 297     pPreviewData->rcDesktop.left = 0;
 298     pPreviewData->rcDesktop.top = 0;
 299     pPreviewData->rcDesktop.right = cx;
 300     pPreviewData->rcDesktop.bottom = cy;
 301
 302     CalculateItemSize(pPreviewData);
 303 }
 304
 305 #ifdef _MSC_VER
 306
 307 #if _UNICODE
 308 typedef BOOL (WINAPI * DCT_PROC)(HWND hwnd, HDC hdc, const RECT *rect, HFONT hFont, HICON hIcon, LPCWSTR str, UINT uFlags);
 309 #define DCT_ORD 178
 310 #else
 311 typedef BOOL (WINAPI * DCT_PROC)(HWND hwnd, HDC hdc, const RECT *rect, HFONT hFont, HICON hIcon, LPCSTR str, UINT uFlags);
 312 #define DCT_ORD 177
 313 #endif
 314
 315 typedef DWORD (WINAPI * DMBT_PROC)(HWND hwnd, HDC hDC, LPRECT lprect, HMENU hMenu, HFONT hFont);
 316 #define DMBT_ORD 186
 317
 318 #endif
 319
 320 static VOID
 321 OnPaint(HWND hwnd, PPREVIEW_DATA pPreviewData)
 322 {
 323     PAINTSTRUCT ps;
 324     HFONT hOldFont;
 325     HDC hdc;
 326     RECT rc;
 327
 328 #ifdef _MSC_VER
 329     DCT_PROC DrawCaptionTemp;
 330     DMBT_PROC DrawMenuBarTemp;
 331     HMODULE hUser32;
 332
 333     hUser32 = LoadLibrary(_T("user32.dll"));
 334     if(hUser32 == NULL)
 335         return FALSE;
 336
 337     DrawCaptionTemp = (DCT_PROC)GetProcAddress(hUser32, (LPCSTR)DCT_ORD);
 338     DrawMenuBarTemp = (DMBT_PROC)GetProcAddress(hUser32, (LPCSTR)DMBT_ORD);
 339 #endif
 340
 341     hdc = BeginPaint(hwnd, &ps);
 342
 343     /* Desktop */
 344     FillRect(hdc, &pPreviewData->rcDesktop, pPreviewData->hbrDesktop);
 345
 346     /* Inactive Window */
 347     DrawEdge(hdc, &pPreviewData->rcInactiveFrame, EDGE_RAISED, BF_RECT | BF_MIDDLE);
 348     SetTextColor(hdc, pPreviewData->clrSysColor[COLOR_INACTIVECAPTIONTEXT]);
 349     DrawCaptionTemp(NULL, hdc, &pPreviewData->rcInactiveCaption,  pPreviewData->hCaptionFont,
 350                     NULL, pPreviewData->lpInAct, DC_GRADIENT | DC_ICON | DC_TEXT);
 351     DrawCaptionButtons(hdc, &pPreviewData->rcInactiveCaption, TRUE, pPreviewData->cyCaption - 2);
 352
 353     /* Active Window */
 354     DrawEdge(hdc, &pPreviewData->rcActiveFrame, EDGE_RAISED, BF_RECT | BF_MIDDLE);
 355     SetTextColor(hdc, pPreviewData->clrSysColor[COLOR_CAPTIONTEXT]);
 356     DrawCaptionTemp(NULL, hdc, &pPreviewData->rcActiveCaption, pPreviewData->hCaptionFont,
 357                     NULL, pPreviewData->lpAct, DC_ACTIVE | DC_GRADIENT | DC_ICON | DC_TEXT);
 358     DrawCaptionButtons(hdc, &pPreviewData->rcActiveCaption, TRUE, pPreviewData->cyCaption - 2);
 359
 360     /* Draw the menu bar */
 361     DrawMenuBarTemp(hwnd, hdc, &pPreviewData->rcActiveMenuBar,
 362                     pPreviewData->hMenu,
 363                     pPreviewData->hMenuFont);
 364
 365     /* Draw the client area */
 366     CopyRect(&rc, &pPreviewData->rcActiveClient);
 367     DrawEdge(hdc, &rc, EDGE_SUNKEN, BF_RECT | BF_ADJUST);
 368     FillRect(hdc, &rc, pPreviewData->hbrWindow);
 369
 370     /* Draw the client text */
 371     CopyRect(&rc, &pPreviewData->rcActiveClient);
 372     rc.left += 4;
 373     rc.top += 2;
 374     SetTextColor(hdc, pPreviewData->clrSysColor[COLOR_WINDOWTEXT]);
 375     hOldFont = SelectObject(hdc, pPreviewData->hCaptionFont);
 376     DrawText(hdc, pPreviewData->lpWinTxt, lstrlen(pPreviewData->lpWinTxt), &rc, DT_LEFT);
 377     SelectObject(hdc, hOldFont);
 378
 379     /* Draw the scroll bar */
 380     DrawScrollbar(hdc, &pPreviewData->rcActiveScroll, pPreviewData->hbrScrollbar);
 381
 382     /* Dialog Window */
 383     DrawEdge(hdc, &pPreviewData->rcDialogFrame, EDGE_RAISED, BF_RECT | BF_MIDDLE);
 384     SetTextColor(hdc, pPreviewData->clrSysColor[COLOR_WINDOW]);
 385     DrawCaptionTemp(NULL, hdc, &pPreviewData->rcDialogCaption, pPreviewData->hCaptionFont,
 386                     NULL, pPreviewData->lpMessBox, DC_ACTIVE | DC_GRADIENT | DC_ICON | DC_TEXT);
 387     DrawCaptionButtons(hdc, &pPreviewData->rcDialogCaption, FALSE, pPreviewData->cyCaption - 2);
 388
 389     /* Draw the dialog text */
 390     CopyRect(&rc, &pPreviewData->rcDialogClient);
 391     rc.left += 4;
 392     rc.top += 2;
 393     SetTextColor(hdc, RGB(0,0,0));
 394     hOldFont = SelectObject(hdc, pPreviewData->hMessageFont);
 395     DrawText(hdc, pPreviewData->lpMessText, lstrlen(pPreviewData->lpMessText), &rc, DT_LEFT);
 396     SelectObject(hdc, hOldFont);
 397
 398     /* Draw Button */
 399     DrawFrameControl(hdc, &pPreviewData->rcDialogButton, DFC_BUTTON, DFCS_BUTTONPUSH);
 400     CopyRect(&rc, &pPreviewData->rcDialogButton);
 401     SetTextColor(hdc, pPreviewData->clrSysColor[COLOR_BTNTEXT]);
 402     hOldFont = SelectObject(hdc, pPreviewData->hMessageFont);
 403     DrawText(hdc, pPreviewData->lpButText, lstrlen(pPreviewData->lpButText), &rc, DT_VCENTER | DT_CENTER | DT_SINGLELINE);
 404     SelectObject(hdc, hOldFont);
 405
 406     EndPaint(hwnd, &ps);
 407 }
 408
 409
 410 static VOID
 411 OnLButtonDown(HWND hwnd, int xPos, int yPos, PPREVIEW_DATA pPreviewData)
 412 {
 413     UINT type = IDX_DESKTOP;
 414     POINT pt;
 415
 416     pt.x = xPos;
 417     pt.y = yPos;
 418
 419     if (PtInRect(&pPreviewData->rcInactiveFrame, pt))
 420         type = IDX_INACTIVE_BORDER;
 421
 422     if (PtInRect(&pPreviewData->rcInactiveCaption, pt))
 423         type = IDX_INACTIVE_CAPTION;
 424
 425     if (PtInRect(&pPreviewData->rcInactiveCaptionButtons, pt))
 426         type = IDX_CAPTION_BUTTON;
 427
 428     if (PtInRect(&pPreviewData->rcActiveFrame, pt))
 429         type = IDX_ACTIVE_BORDER;
 430
 431     if (PtInRect(&pPreviewData->rcActiveCaption, pt))
 432         type = IDX_ACTIVE_CAPTION;
 433
 434     if (PtInRect(&pPreviewData->rcActiveCaptionButtons, pt))
 435         type = IDX_CAPTION_BUTTON;
 436
 437 //    if (PtInRect(&pPreviewData->rcSelectedMenuItem, pt))
 438 //        type = IDX_SELECTION;
 439
 440     if (PtInRect(&pPreviewData->rcActiveMenuBar, pt))
 441         type = IDX_MENU;
 442
 443     if (PtInRect(&pPreviewData->rcActiveClient, pt))
 444         type = IDX_WINDOW;
 445
 446     if (PtInRect(&pPreviewData->rcActiveScroll, pt))
 447         type = IDX_SCROLLBAR;
 448
 449     if (PtInRect(&pPreviewData->rcDialogFrame, pt))
 450         type = IDX_DIALOG;
 451
 452     if (PtInRect(&pPreviewData->rcDialogCaption, pt))
 453         type = IDX_ACTIVE_CAPTION;
 454
 455     if (PtInRect(&pPreviewData->rcDialogCaptionButtons, pt))
 456         type = IDX_CAPTION_BUTTON;
 457
 458     if (PtInRect(&pPreviewData->rcDialogButton, pt))
 459         type = IDX_3D_OBJECTS;
 460
 461     SendMessage(GetParent(hwnd),
 462                 WM_COMMAND,
 463                 MAKEWPARAM(GetWindowLongPtrW(hwnd, GWLP_ID), 0),
 464                 (LPARAM)type);
 465 }
 466
 467
 468 static VOID
 469 OnDestroy(PPREVIEW_DATA pPreviewData)
 470 {
 471     DeleteObject(pPreviewData->hbrScrollbar);
 472     DeleteObject(pPreviewData->hbrDesktop);
 473     DeleteObject(pPreviewData->hbrWindow);
 474
 475     DeleteObject(pPreviewData->hCaptionFont);
 476     DeleteObject(pPreviewData->hMenuFont);
 477     DeleteObject(pPreviewData->hMessageFont);
 478
 479     DestroyMenu(pPreviewData->hMenu);
 480
 481     LocalFree((HLOCAL)pPreviewData->lpInAct);
 482     LocalFree((HLOCAL)pPreviewData->lpAct);
 483     LocalFree((HLOCAL)pPreviewData->lpWinTxt);
 484     LocalFree((HLOCAL)pPreviewData->lpMessBox);
 485     LocalFree((HLOCAL)pPreviewData->lpMessText);
 486     LocalFree((HLOCAL)pPreviewData->lpButText);
 487 }
 488
 489
 490 static LRESULT CALLBACK
 491 PreviewWndProc(HWND hwnd,
 492                UINT uMsg,
 493                WPARAM wParam,
 494                LPARAM lParam)
 495 {
 496     PPREVIEW_DATA pPreviewData;
 497
 498     pPreviewData = (PPREVIEW_DATA)GetWindowLongPtr(hwnd, GWLP_USERDATA);
 499
 500     switch (uMsg)
 501     {
 502         case WM_CREATE:
 503             pPreviewData = (PPREVIEW_DATA)HeapAlloc(GetProcessHeap(),
 504                                                     HEAP_ZERO_MEMORY,
 505                                                     sizeof(PREVIEW_DATA));
 506             if (!pPreviewData)
 507                 return -1;
 508
 509             SetWindowLongPtr(hwnd, GWLP_USERDATA, (LONG_PTR)pPreviewData);
 510             OnCreate(hwnd, pPreviewData);
 511             break;
 512
 513         case WM_SIZE:
 514             OnSize(LOWORD(lParam), HIWORD(lParam), pPreviewData);
 515             break;
 516
 517         case WM_PAINT:
 518             OnPaint(hwnd, pPreviewData);
 519             break;
 520
 521         case WM_LBUTTONDOWN:
 522             OnLButtonDown(hwnd, LOWORD(lParam), HIWORD(lParam), pPreviewData);
 523             break;
 524
 525         case WM_DESTROY:
 526             OnDestroy(pPreviewData);
 527             HeapFree(GetProcessHeap(), 0, pPreviewData);
 528             break;
 529
 530         case PVM_GETCYCAPTION:
 531             return pPreviewData->cyCaption;
 532
 533         case PVM_SETCYCAPTION:
 534             if ((INT)lParam > 0)
 535             {
 536                 pPreviewData->cyCaption = (INT)lParam;
 537                 CalculateItemSize(pPreviewData);
 538                 InvalidateRect(hwnd, NULL, FALSE);
 539             }
 540             break;
 541
 542         case PVM_GETCYMENU:
 543             return pPreviewData->cyMenu;
 544
 545         case PVM_SETCYMENU:
 546             if ((INT)lParam > 0)
 547             {
 548                 pPreviewData->cyMenu = (INT)lParam;
 549                 CalculateItemSize(pPreviewData);
 550                 InvalidateRect(hwnd, NULL, FALSE);
 551             }
 552             break;
 553
 554         case PVM_GETCXSCROLLBAR:
 555             return pPreviewData->cxScrollbar;
 556
 557         case PVM_SETCXSCROLLBAR:
 558             if ((INT)lParam > 0)
 559             {
 560                 pPreviewData->cxScrollbar = (INT)lParam;
 561                 CalculateItemSize(pPreviewData);
 562                 InvalidateRect(hwnd, NULL, FALSE);
 563             }
 564             break;
 565
 566         case PVM_GETCYSIZEFRAME:
 567             return pPreviewData->cySizeFrame;
 568
 569         case PVM_SETCYSIZEFRAME:
 570             if ((INT)lParam > 0)
 571             {
 572                 pPreviewData->cySizeFrame = (INT)lParam;
 573                 CalculateItemSize(pPreviewData);
 574                 InvalidateRect(hwnd, NULL, FALSE);
 575             }
 576             break;
 577
 578         case PVM_SETCAPTIONFONT:
 579             CopyMemory(&pPreviewData->lfCaptionFont, (LOGFONT*)lParam, sizeof(LOGFONT));
 580             DeleteObject(pPreviewData->hCaptionFont);
 581             pPreviewData->hCaptionFont = CreateFontIndirect(&pPreviewData->lfCaptionFont);
 582             CalculateItemSize(pPreviewData);
 583             InvalidateRect(hwnd, NULL, FALSE);
 584             break;
 585
 586         case PVM_SETMENUFONT:
 587             CopyMemory(&pPreviewData->lfMenuFont, (LOGFONT*)lParam, sizeof(LOGFONT));
 588             DeleteObject(pPreviewData->hMenuFont);
 589             pPreviewData->hMenuFont = CreateFontIndirect(&pPreviewData->lfMenuFont);
 590             CalculateItemSize(pPreviewData);
 591             InvalidateRect(hwnd, NULL, FALSE);
 592             break;
 593
 594         case PVM_SETDIALOGFONT:
 595             CopyMemory(&pPreviewData->lfMessageFont, (LOGFONT*)lParam, sizeof(LOGFONT));
 596             DeleteObject(pPreviewData->hMessageFont);
 597             pPreviewData->hMessageFont = CreateFontIndirect(&pPreviewData->lfMessageFont);
 598             CalculateItemSize(pPreviewData);
 599             InvalidateRect(hwnd, NULL, FALSE);
 600             break;
 601
 602         case PVM_SETCOLOR:
 603             pPreviewData->clrSysColor[(INT)wParam] = (DWORD)lParam;
 604             switch((INT)wParam)
 605             {
 606                 case COLOR_SCROLLBAR:
 607                     DeleteObject(pPreviewData->hbrScrollbar);
 608                     pPreviewData->hbrScrollbar = CreateSolidBrush(pPreviewData->clrSysColor[COLOR_SCROLLBAR]);
 609                     break;
 610
 611                 case COLOR_DESKTOP:
 612                     DeleteObject(pPreviewData->hbrDesktop);
 613                     pPreviewData->hbrDesktop = CreateSolidBrush(pPreviewData->clrSysColor[COLOR_DESKTOP]);
 614                     break;
 615
 616                 case COLOR_WINDOW:
 617                     DeleteObject(pPreviewData->hbrWindow);
 618                     pPreviewData->hbrWindow = CreateSolidBrush(pPreviewData->clrSysColor[COLOR_WINDOW]);
 619                     break;
 620             }
 621             InvalidateRect(hwnd, NULL, FALSE);
 622             break;
 623
 624         default:
 625             DefWindowProc(hwnd,
 626                           uMsg,
 627                           wParam,
 628                           lParam);
 629     }
 630
 631     return TRUE;
 632 }
 633
 634
 635 BOOL
 636 RegisterPreviewControl(IN HINSTANCE hInstance)
 637 {
 638     WNDCLASSEX wc = {0};
 639
 640     wc.cbSize = sizeof(WNDCLASSEX);
 641     wc.lpfnWndProc = PreviewWndProc;
 642     wc.hInstance = hInstance;
 643     wc.hCursor = LoadCursor(NULL, IDC_ARROW);
 644     wc.hbrBackground = (HBRUSH)NULL;
 645     wc.lpszClassName = szPreviewWndClass;
 646
 647     return RegisterClassEx(&wc) != (ATOM)0;
 648 }
 649
 650
 651 VOID
 652 UnregisterPreviewControl(IN HINSTANCE hInstance)
 653 {
 654     UnregisterClass(szPreviewWndClass,
 655                     hInstance);
 656 }