demo7_1.c

WINDOWS图形编程随书光盘

231                          CheckMenuItem(hMenu, wParam,
232                                        MF_UNCHECKED);
233                        else
234                          CheckMenuItem(hMenu, wParam,
235                                        MF_CHECKED);
236 
237                        bStrikeOut =  ! bStrikeOut;
238                        break;
239 
240                     case IDM_NORM :
241                        if (bNormal)
242                          break;
243 
244                        bNormal = TRUE;
245                        CheckMenuItem(hMenu, IDM_NORM,
246                                      MF_CHECKED);
247 
248                        bBold = bItalic = FALSE;
249                        bUnderLine = bStrikeOut = FALSE;
250                        CheckMenuItem(hMenu, IDM_BOLD,
251                                      MF_UNCHECKED);
252                        CheckMenuItem(hMenu, IDM_ITALIC,
253                                      MF_UNCHECKED);
254                        CheckMenuItem(hMenu, IDM_UNDERLINE,
255                                      MF_UNCHECKED);
256                        CheckMenuItem(hMenu, IDM_STRIKEOUT,
257                                      MF_UNCHECKED);
258 
259                        break;
260                  }
261 
262                 InvalidateRect(hWnd, NULL, TRUE);
263                 return (0);
264 
265       case WM_PAINT :
266                 hDC = BeginPaint(hWnd, &ps);
267 
268                 lf = FontSize.lf[SizeID-IDM_SIZE];
269 
270                 lf.lfWeight = bBold ? 700 : 400;
271                 lf.lfItalic = bItalic;
272                 lf.lfUnderline = bUnderLine;
273                 lf.lfStrikeOut = bStrikeOut;
274 
275                 hFont = CreateFontIndirect(&lf);
276                 hPreFont = SelectObject(hDC, hFont);
277 
278                 GetTextMetrics(hDC, &tm);
279                 TextOut(hDC, 10, 10,
280                              szStr1, lstrlen(szStr1));
281                 TextOut(hDC, 10, 10+tm.tmHeight,
282                              szStr2, lstrlen(szStr2));
283 
284                 SelectObject(hDC, hPreFont);
285                 DeleteObject(hFont);
286 
287                 EndPaint(hWnd, &ps);
288                 return (0);
289 
290       case WM_DESTROY :
291                 DeleteObject(hBoldBM);
292                 DeleteObject(hItalicBM);
293                 DeleteObject(hUnderlineBM);
294                 DeleteObject(hStrikeOutBM);
295                 PostQuitMessage(0);
296                 return (0) ;
297 
298       default :
299          return (DefWindowProc(hWnd, message, wParam, lParam));
300     }
301 }
302 
303 
304 
305 int FAR PASCAL EnumFaces(LPLOGFONT lpLF, LPTEXTMETRIC lpTM,
306                          short nType, LPSTR lpData)
307 {
308    lstrcpy(FontFace.FaceName[FontFace.FaceNum],
309            lpLF->lfFaceName);
310    FontFace.bRaster[FontFace.FaceNum] = nType & 1;
311 
312    FontFace.FaceNum++;
313 
314    if (FontFace.FaceNum >= MAXFACES)
315       return (0);
316    return (1);
317 }
318 
319 
320 int FAR PASCAL EnumSizes(LPLOGFONT lpLF, LPTEXTMETRIC lpTM,
321                          short nType, LPSTR lpData)
322 {
323    if (nLogPixSx != lpTM->tmDigitizedAspectX ||
324        nLogPixSy != lpTM->tmDigitizedAspectY)
325      return (1);
326 
327    FontSize.lf[FontSize.SizeNum] = *lpLF;
328    FontSize.tm[FontSize.SizeNum] = *lpTM;
329 
330    FontSize.SizeNum++;
331 
332    if (FontSize.SizeNum >= MAXSIZES)
333       return (0);
334    return (1);
335 }
336 
337 
338 void MakeFontMenu(HWND hWnd)
339 {
340    int     i;
341    HDC     hDC;
342    HMENU   hMenu, hPopMenu;
343    FARPROC lpEnumFaces;
344 
345    FontFace.FaceNum = 0;
346    lpEnumFaces = MakeProcInstance(EnumFaces, hInst);
347 
348    hDC = GetDC(hWnd);
349    EnumFonts(hDC, NULL, lpEnumFaces, NULL);
350    ReleaseDC(hWnd, hDC);
351 
352    hMenu    = GetMenu(hWnd);
353    hPopMenu = GetSubMenu(hMenu, FONTMENU);
354 
355    DeleteMenu(hPopMenu, 0, MF_BYPOSITION);
356 
357    for (i=0; i<FontFace.FaceNum; i++)
358      AppendMenu(hPopMenu, 0, IDM_FONT+i,
359                 FontFace.FaceName[i]);
360 
361    FaceID = -1;
362    SendMessage(hWnd, WM_COMMAND, IDM_FONT, 0L);
363 }
364 
365 
366 void MakeSizeMenu(HWND hWnd)
367 {
368    int     i;
369    HDC     hDC;
370    HMENU   hMenu, hPopMenu;
371    FARPROC lpEnumSizes;
372    char    szStr[10];
373    static  LOGFONT DefLF;
374 
375    FontSize.SizeNum = 0;
376    lpEnumSizes = MakeProcInstance(EnumSizes, hInst);
377 
378    if (FontFace.bRaster[FaceID-IDM_FONT])
379      {
380        hDC = GetDC(hWnd);
381        EnumFonts(hDC, FontFace.FaceName[FaceID-IDM_FONT],
382                  lpEnumSizes, NULL);
383        ReleaseDC(hWnd, hDC);
384      }
385    else
386       FillStrokeSize();
387 
388    hMenu    = GetMenu(hWnd);
389    hPopMenu = GetSubMenu(hMenu, SIZEMENU);
390 
391    while (GetMenuItemCount(hPopMenu) > 0)
392      DeleteMenu(hPopMenu, 0, MF_BYPOSITION);
393 
394    if (FontSize.SizeNum)
395       for (i=0; i<FontSize.SizeNum; i++)
396         {
397           sprintf(szStr, "%2d",
398                   ((FontSize.tm[i].tmHeight -
399                     FontSize.tm[i].tmInternalLeading)*72
400                     +nLogPixSy/2) / nLogPixSy) ;
401           AppendMenu(hPopMenu, 0, IDM_SIZE+i, szStr);
402         }
403    else
404       {
405         FontSize.lf[0] = DefLF;
406         lstrcpy(FontSize.lf[0].lfFaceName,
407                 FontFace.FaceName[FaceID-IDM_FONT]);
408         AppendMenu(hPopMenu, 0, IDM_SIZE, "Default");
409       }
410 
411    SizeID = -1;
412    SendMessage(hWnd, WM_COMMAND, IDM_SIZE, 0L);
413 }
414 
415 
416 void FillStrokeSize()
417 {
418    int    i;
419    static LOGFONT DefLF;
420    int    StrokeSize[] = {  8, 10, 12, 14, 16,
421                            18, 20, 22, 24, 26,
422                            28, 30, 32, 34, 36 };
423 
424    FontSize.SizeNum = sizeof(StrokeSize)/sizeof(int);
425 
426    for (i=0; i<FontSize.SizeNum; i++)
427      {
428        FontSize.lf[i] = DefLF;
429 
430        lstrcpy(FontSize.lf[i].lfFaceName,
431                   FontFace.FaceName[FaceID-IDM_FONT]);
432        FontSize.lf[i].lfCharSet = OEM_CHARSET;
433        FontSize.lf[i].lfHeight = StrokeSize[i]*nLogPixSy/72;
434 
435        FontSize.tm[i].tmHeight = StrokeSize[i]*nLogPixSy/72;
436        FontSize.tm[i].tmInternalLeading = 0;
437      }
438 }
439 
440 
441 void MakeStyleMenu(HMENU hMenu)
442 {
443    HMENU hStyleMenu;
444 
445    hBoldBM      = LoadBitmap(hInst, "Bold");
446    hItalicBM    = LoadBitmap(hInst, "Italic");
447    hUnderlineBM = LoadBitmap(hInst, "Underline");
448    hStrikeOutBM = LoadBitmap(hInst, "StrikeOut");
449 
450    hStyleMenu = GetSubMenu(hMenu, STYLEMENU);
451    AppendMenu(hStyleMenu, MF_BITMAP, IDM_BOLD,
452               (LPSTR)(LONG)hBoldBM);
453    AppendMenu(hStyleMenu, MF_BITMAP, IDM_ITALIC,
454               (LPSTR)(LONG)hItalicBM);
455    AppendMenu(hStyleMenu, MF_BITMAP, IDM_UNDERLINE,
456               (LPSTR)(LONG)hUnderlineBM);
457    AppendMenu(hStyleMenu, MF_BITMAP, IDM_STRIKEOUT,
458               (LPSTR)(LONG)hStrikeOutBM);
459 }