Mercurial > dwindows
comparison win/dw.c @ 49:bf42d08d72d7
Added font text extent querying code, and made it so winmain.c can be used
without Dynamic Windows.
| author | bsmith@81767d24-ef19-dc11-ae90-00e081727c95 |
|---|---|
| date | Fri, 09 Nov 2001 13:49:44 +0000 |
| parents | 16eac0f8b45f |
| children | 0804483f6320 |
comparison
equal
deleted
inserted
replaced
| 48:16eac0f8b45f | 49:bf42d08d72d7 |
|---|---|
| 5398 DeleteObject(hFont); | 5398 DeleteObject(hFont); |
| 5399 if(!pixmap) | 5399 if(!pixmap) |
| 5400 ReleaseDC(handle, hdc); | 5400 ReleaseDC(handle, hdc); |
| 5401 } | 5401 } |
| 5402 | 5402 |
| 5403 /* Query the width and height of a text string. | |
| 5404 * Parameters: | |
| 5405 * handle: Handle to the window. | |
| 5406 * pixmap: Handle to the pixmap. (choose only one of these) | |
| 5407 * text: Text to be queried. | |
| 5408 * width: Pointer to a variable to be filled in with the width. | |
| 5409 * height Pointer to a variable to be filled in with the height. | |
| 5410 */ | |
| 5411 void dw_font_text_extents(HWND handle, HPIXMAP pixmap, char *text, int *width, int *height) | |
| 5412 { | |
| 5413 HDC hdc; | |
| 5414 int mustdelete = 0; | |
| 5415 HFONT hFont, oldFont; | |
| 5416 SIZE sz; | |
| 5417 | |
| 5418 if(handle) | |
| 5419 hdc = GetDC(handle); | |
| 5420 else if(pixmap) | |
| 5421 hdc = pixmap->hdc; | |
| 5422 else | |
| 5423 return; | |
| 5424 | |
| 5425 { | |
| 5426 ColorInfo *cinfo; | |
| 5427 | |
| 5428 if(handle) | |
| 5429 cinfo = (ColorInfo *)GetWindowLong(handle, GWL_USERDATA); | |
| 5430 else | |
| 5431 cinfo = (ColorInfo *)GetWindowLong(pixmap->handle, GWL_USERDATA); | |
| 5432 | |
| 5433 if(cinfo) | |
| 5434 { | |
| 5435 hFont = _aquire_font(cinfo->fontname); | |
| 5436 mustdelete = 1; | |
| 5437 } | |
| 5438 } | |
| 5439 oldFont = SelectObject(hdc, hFont); | |
| 5440 | |
| 5441 GetTextExtentPoint32(hdc, text, strlen(text), &sz); | |
| 5442 | |
| 5443 if(width) | |
| 5444 *width = sz.cx; | |
| 5445 | |
| 5446 if(height) | |
| 5447 *height = sz.cy; | |
| 5448 | |
| 5449 SelectObject(hdc, oldFont); | |
| 5450 if(mustdelete) | |
| 5451 DeleteObject(hFont); | |
| 5452 if(!pixmap) | |
| 5453 ReleaseDC(handle, hdc); | |
| 5454 } | |
| 5455 | |
| 5403 /* Call this after drawing to the screen to make sure | 5456 /* Call this after drawing to the screen to make sure |
| 5404 * anything you have drawn is visible. | 5457 * anything you have drawn is visible. |
| 5405 */ | 5458 */ |
| 5406 void dw_flush(void) | 5459 void dw_flush(void) |
| 5407 { | 5460 { |