WebSVN – Kolibri OS – Diff – /programs/develop/libraries/cairo/src/cairo-region.c

  * @Short_Description: Representing a pixel-aligned area
+ *
  * Regions are a simple graphical data type representing an area of
  * integer-aligned rectangles. They are often used on raster surfaces
  * to track areas of interest, such as change or clip areas.
- */
+ **/
 static const cairo_region_t _cairo_region_nil = {
     CAIRO_REFERENCE_COUNT_INVALID,	/* ref_count */
     CAIRO_STATUS_NO_MEMORY,		/* status */
     case CAIRO_STATUS_NEGATIVE_COUNT:
     case CAIRO_STATUS_INVALID_CLUSTERS:
     case CAIRO_STATUS_INVALID_SLANT:
     case CAIRO_STATUS_INVALID_WEIGHT:
     case CAIRO_STATUS_USER_FONT_NOT_IMPLEMENTED:
+    case CAIRO_STATUS_INVALID_MESH_CONSTRUCTION:
+    case CAIRO_STATUS_DEVICE_FINISHED:
     default:
 	_cairo_error_throw (CAIRO_STATUS_NO_MEMORY);
 	return (cairo_region_t *) &_cairo_region_nil;
+    }
+}
  **/
 static cairo_status_t
 _cairo_region_set_error (cairo_region_t *region,
-			cairo_status_t status)
+			 cairo_status_t status)
+{
-    if (! _cairo_status_is_error (status))
+    if (status == CAIRO_STATUS_SUCCESS)
-	return status;
+        return CAIRO_STATUS_SUCCESS;
     /* Don't overwrite an existing error. This preserves the first
      * error, which is the most significant. */
     region = _cairo_malloc (sizeof (cairo_region_t));
     if (unlikely (region == NULL))
+	return _cairo_region_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
+    CAIRO_REFERENCE_COUNT_INIT (®ion->ref_count, 1);
+    region->status = CAIRO_STATUS_SUCCESS;
+    if (count == 1) {
+	pixman_region32_init_rect (®ion->rgn,
+				   rects->x, rects->y,
+				   rects->width, rects->height);
+	return region;
 	return _cairo_region_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
     if (count > ARRAY_LENGTH (stack_pboxes)) {
 	pboxes = _cairo_malloc_ab (count, sizeof (pixman_box32_t));
 	if (unlikely (pboxes == NULL)) {
     if (unlikely (i == 0)) {
 	free (region);
 	return _cairo_region_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
+    }
+    return region;
+}
+slim_hidden_def (cairo_region_create_rectangles);
+cairo_region_t *
+_cairo_region_create_from_boxes (const cairo_box_t *boxes, int count)
+{
+    cairo_region_t *region;
+    region = _cairo_malloc (sizeof (cairo_region_t));
+    if (unlikely (region == NULL))
+	return _cairo_region_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
     CAIRO_REFERENCE_COUNT_INIT (®ion->ref_count, 1);
+    region->status = CAIRO_STATUS_SUCCESS;
+    if (! pixman_region32_init_rects (®ion->rgn,
+				      (pixman_box32_t *)boxes, count)) {
+	free (region);
+	return _cairo_region_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
+    }
     region->status = CAIRO_STATUS_SUCCESS;
     return region;
+}
-}
+cairo_box_t *
+_cairo_region_get_boxes (const cairo_region_t *region, int *nbox)
+{
+    if (region->status) {
+	nbox = 0;
+	return NULL;
+    }
+    return (cairo_box_t *) pixman_region32_rectangles (CONST_CAST ®ion->rgn, nbox);
 slim_hidden_def (cairo_region_create_rectangles);
 /**
  * cairo_region_create_rectangle:
 /**
  * cairo_region_status:
  * @region: a #cairo_region_t
  *
- * Checks whether an error has previous occured for this
+ * Checks whether an error has previous occurred for this
  * region object.
+ *
  * Return value: %CAIRO_STATUS_SUCCESS or %CAIRO_STATUS_NO_MEMORY
+ *
+}
 slim_hidden_def (cairo_region_translate);
 /**
  * cairo_region_overlap_t:
- * @CAIRO_REGION_OVERLAP_IN: The contents are entirely inside the region
+ * @CAIRO_REGION_OVERLAP_IN: The contents are entirely inside the region. (Since 1.10)
- * @CAIRO_REGION_OVERLAP_OUT: The contents are entirely outside the region
+ * @CAIRO_REGION_OVERLAP_OUT: The contents are entirely outside the region. (Since 1.10)
  * @CAIRO_REGION_OVERLAP_PART: The contents are partially inside and
- *     partially outside the region.
+ *     partially outside the region. (Since 1.10)
+ *
+ * Used as the return value for cairo_region_contains_rectangle().
+ *
- * Used as the return value for cairo_region_contains_rectangle().
+ * Since: 1.10
- */
+ **/
 /**
  * cairo_region_contains_rectangle:

Subversion Repositories Kolibri OS

(root)/programs/develop/libraries/cairo/src/cairo-region.c – Rev 1892 → 3959