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