static TempBuf * gimp_undo_get_new_preview (GimpViewable *viewable, GimpContext *context, gint width, gint height) { GimpUndo *undo = GIMP_UNDO (viewable); if (undo->preview) { gint preview_width; gint preview_height; gimp_viewable_calc_preview_size (undo->preview->width, undo->preview->height, width, height, TRUE, 1.0, 1.0, &preview_width, &preview_height, NULL); if (preview_width < undo->preview->width && preview_height < undo->preview->height) { return temp_buf_scale (undo->preview, preview_width, preview_height); } return temp_buf_copy (undo->preview, NULL); } return NULL; }
static void gimp_brush_clipboard_buffer_changed (Gimp *gimp, GimpBrush *brush) { gint width; gint height; if (brush->mask) { temp_buf_free (brush->mask); brush->mask = NULL; } if (brush->pixmap) { temp_buf_free (brush->pixmap); brush->pixmap = NULL; } if (gimp->global_buffer) { TileManager *tiles = gimp_buffer_get_tiles (gimp->global_buffer); GimpImageType type = gimp_buffer_get_image_type (gimp->global_buffer); width = MIN (gimp_buffer_get_width (gimp->global_buffer), 1024); height = MIN (gimp_buffer_get_height (gimp->global_buffer), 1024); brush->mask = temp_buf_new (width, height, 1, 0, 0, NULL); brush->pixmap = temp_buf_new (width, height, 3, 0, 0, NULL); /* copy the alpha channel into the brush's mask */ if (GIMP_IMAGE_TYPE_HAS_ALPHA (type)) { PixelRegion bufferPR; PixelRegion maskPR; pixel_region_init (&bufferPR, tiles, 0, 0, width, height, FALSE); pixel_region_init_temp_buf (&maskPR, brush->mask, 0, 0, width, height); extract_alpha_region (&bufferPR, NULL, &maskPR); } else { PixelRegion maskPR; guchar opaque = OPAQUE_OPACITY; pixel_region_init_temp_buf (&maskPR, brush->mask, 0, 0, width, height); color_region (&maskPR, &opaque); } /* copy the color channels into the brush's pixmap */ if (GIMP_IMAGE_TYPE_IS_RGB (type)) { PixelRegion bufferPR; PixelRegion pixmapPR; pixel_region_init (&bufferPR, tiles, 0, 0, width, height, FALSE); pixel_region_init_temp_buf (&pixmapPR, brush->pixmap, 0, 0, width, height); if (GIMP_IMAGE_TYPE_HAS_ALPHA (type)) copy_color (&bufferPR, &pixmapPR); else copy_region (&bufferPR, &pixmapPR); } else { PixelRegion bufferPR; PixelRegion tempPR; TempBuf *temp = temp_buf_new (width, height, 1, 0, 0, NULL); pixel_region_init (&bufferPR, tiles, 0, 0, width, height, FALSE); pixel_region_init_temp_buf (&tempPR, temp, 0, 0, width, height); if (GIMP_IMAGE_TYPE_HAS_ALPHA (type)) copy_component (&bufferPR, &tempPR, 0); else copy_region (&bufferPR, &tempPR); temp_buf_copy (temp, brush->pixmap); temp_buf_free (temp); } } else { guchar color = 0; width = 17; height = 17; brush->mask = temp_buf_new (width, height, 1, 0, 0, &color); } brush->x_axis.x = width / 2; brush->x_axis.y = 0; brush->y_axis.x = 0; brush->y_axis.y = height / 2; gimp_data_dirty (GIMP_DATA (brush)); }