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comparison gtk3/dw.c @ 1245:3a2ffe3a7eae

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Implemented dw_pixmap_stretch_bitblt() on GTK3... GTK2 support for printing contexts is there but not tested. GTK2 pixmap/drawable support to come if possible.
author bsmith@81767d24-ef19-dc11-ae90-00e081727c95
date Wed, 19 Oct 2011 09:40:23 +0000
parents 3bc6244279c0
children 3df86772b625
comparison
equal deleted inserted replaced
1244:db26b9622769 1245:3a2ffe3a7eae
7316 * src: Source window handle. 7316 * src: Source window handle.
7317 * srcp: Source pixmap. (choose only one). 7317 * srcp: Source pixmap. (choose only one).
7318 * xsrc: X coordinate of source. 7318 * xsrc: X coordinate of source.
7319 * ysrc: Y coordinate of source. 7319 * ysrc: Y coordinate of source.
7320 */ 7320 */
7321 void dw_pixmap_bitblt(HWND dest, HPIXMAP destp, int xdest, int ydest, int width, int height, HWND src, HPIXMAP srcp, int xsrc, int ysrc) 7321 void API dw_pixmap_bitblt(HWND dest, HPIXMAP destp, int xdest, int ydest, int width, int height, HWND src, HPIXMAP srcp, int xsrc, int ysrc)
7322 { 7322 {
7323 /* Ok, these #ifdefs are going to get a bit confusing because 7323 dw_pixmap_stretch_bitblt(dest, destp, xdest, ydest, width, height, src, srcp, xsrc, ysrc, -1, -1);
7324 * when using gdk-pixbuf, pixmaps are really pixbufs, so we 7324 }
7325 * have to use the pixbuf functions on them, and thus convoluting 7325
7326 * the code here a bit. -Brian 7326 /*
7327 */ 7327 * Copies from one surface to another allowing for stretching.
7328 * Parameters:
7329 * dest: Destination window handle.
7330 * destp: Destination pixmap. (choose only one).
7331 * xdest: X coordinate of destination.
7332 * ydest: Y coordinate of destination.
7333 * width: Width of the target area.
7334 * height: Height of the target area.
7335 * src: Source window handle.
7336 * srcp: Source pixmap. (choose only one).
7337 * xsrc: X coordinate of source.
7338 * ysrc: Y coordinate of source.
7339 * srcwidth: Width of area to copy.
7340 * srcheight: Height of area to copy.
7341 * Returns:
7342 * DW_ERROR_NONE on success and DW_ERROR_GENERAL on failure.
7343 */
7344 int API dw_pixmap_stretch_bitblt(HWND dest, HPIXMAP destp, int xdest, int ydest, int width, int height, HWND src, HPIXMAP srcp, int xsrc, int ysrc, int srcwidth, int srcheight)
7345 {
7328 int _locked_by_me = FALSE; 7346 int _locked_by_me = FALSE;
7329 cairo_t *cr = NULL; 7347 cairo_t *cr = NULL;
7348 int retval = DW_ERROR_GENERAL;
7330 7349
7331 if((!dest && (!destp || !destp->image)) || (!src && (!srcp || !srcp->image))) 7350 if((!dest && (!destp || !destp->image)) || (!src && (!srcp || !srcp->image)))
7332 return; 7351 return retval;
7333 7352
7334 DW_MUTEX_LOCK; 7353 DW_MUTEX_LOCK;
7335 if(dest) 7354 if(dest)
7336 { 7355 {
7337 GdkWindow *window = gtk_widget_get_window(dest); 7356 GdkWindow *window = gtk_widget_get_window(dest);
7338 /* Safety check for non-existant windows */ 7357 /* Safety check for non-existant windows */
7339 if(!window || !GDK_IS_WINDOW(window)) 7358 if(!window || !GDK_IS_WINDOW(window))
7340 { 7359 {
7341 DW_MUTEX_UNLOCK; 7360 DW_MUTEX_UNLOCK;
7342 return; 7361 return retval;
7343 } 7362 }
7344 cr = gdk_cairo_create(window); 7363 cr = gdk_cairo_create(window);
7345 } 7364 }
7346 else if(destp) 7365 else if(destp)
7347 cr = cairo_create(destp->image); 7366 cr = cairo_create(destp->image);
7348 7367
7349 if(cr) 7368 if(cr)
7350 { 7369 {
7370 double xscale = 1, yscale = 1;
7371
7372 if(srcwidth != -1 && srcheight != -1)
7373 {
7374 xscale = (double)width / (double)srcwidth;
7375 yscale = (double)height / (double)srcheight;
7376 cairo_scale(cr, xscale, yscale);
7377 }
7378
7351 if(src) 7379 if(src)
7352 gdk_cairo_set_source_window (cr, gtk_widget_get_window(src), xdest -xsrc, ydest - ysrc); 7380 gdk_cairo_set_source_window (cr, gtk_widget_get_window(src), (xdest + xsrc) / xscale, (ydest + ysrc) / yscale);
7353 else if(srcp) 7381 else if(srcp)
7354 cairo_set_source_surface (cr, srcp->image, xdest - xsrc, ydest - ysrc); 7382 cairo_set_source_surface (cr, srcp->image, (xdest + xsrc) / xscale, (ydest + ysrc) / yscale);
7355 7383
7356 cairo_rectangle(cr, xdest, ydest, width, height); 7384 cairo_rectangle(cr, xdest / xscale, ydest / yscale, width, height);
7357 cairo_fill(cr); 7385 cairo_fill(cr);
7358 cairo_destroy(cr); 7386 cairo_destroy(cr);
7359 } 7387 retval = DW_ERROR_NONE;
7360 DW_MUTEX_UNLOCK; 7388 }
7389 DW_MUTEX_UNLOCK;
7390 return retval;
7361 } 7391 }
7362 7392
7363 /* 7393 /*
7364 * Emits a beep. 7394 * Emits a beep.
7365 * Parameters: 7395 * Parameters: