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- /* GDK - The GIMP Drawing Kit
- * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
- /*
- * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
- * file for a list of people on the GTK+ Team. See the ChangeLog
- * files for a list of changes. These files are distributed with
- * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
- */
-
- #ifndef __GDK_REGION_H__
- #define __GDK_REGION_H__
-
- #include <gdk/gdktypes.h>
-
- G_BEGIN_DECLS
-
- /* GC fill rule for polygons
- * EvenOddRule
- * WindingRule
- */
- typedef enum
- {
- GDK_EVEN_ODD_RULE,
- GDK_WINDING_RULE
- } GdkFillRule;
-
- /* Types of overlapping between a rectangle and a region
- * GDK_OVERLAP_RECTANGLE_IN: rectangle is in region
- * GDK_OVERLAP_RECTANGLE_OUT: rectangle in not in region
- * GDK_OVERLAP_RECTANGLE_PART: rectangle in partially in region
- */
- typedef enum
- {
- GDK_OVERLAP_RECTANGLE_IN,
- GDK_OVERLAP_RECTANGLE_OUT,
- GDK_OVERLAP_RECTANGLE_PART
- } GdkOverlapType;
-
- typedef void (*GdkSpanFunc) (GdkSpan *span,
- gpointer data);
-
- GdkRegion *gdk_region_new (void);
- GdkRegion *gdk_region_polygon (GdkPoint *points,
- gint npoints,
- GdkFillRule fill_rule);
- GdkRegion *gdk_region_copy (GdkRegion *region);
- GdkRegion *gdk_region_rectangle (GdkRectangle *rectangle);
- void gdk_region_destroy (GdkRegion *region);
-
- void gdk_region_get_clipbox (GdkRegion *region,
- GdkRectangle *rectangle);
- void gdk_region_get_rectangles (GdkRegion *region,
- GdkRectangle **rectangles,
- gint *n_rectangles);
-
- gboolean gdk_region_empty (GdkRegion *region);
- gboolean gdk_region_equal (GdkRegion *region1,
- GdkRegion *region2);
- gboolean gdk_region_point_in (GdkRegion *region,
- int x,
- int y);
- GdkOverlapType gdk_region_rect_in (GdkRegion *region,
- GdkRectangle *rect);
-
- void gdk_region_offset (GdkRegion *region,
- gint dx,
- gint dy);
- void gdk_region_shrink (GdkRegion *region,
- gint dx,
- gint dy);
- void gdk_region_union_with_rect (GdkRegion *region,
- GdkRectangle *rect);
- void gdk_region_intersect (GdkRegion *source1,
- GdkRegion *source2);
- void gdk_region_union (GdkRegion *source1,
- GdkRegion *source2);
- void gdk_region_subtract (GdkRegion *source1,
- GdkRegion *source2);
- void gdk_region_xor (GdkRegion *source1,
- GdkRegion *source2);
-
- void gdk_region_spans_intersect_foreach (GdkRegion *region,
- GdkSpan *spans,
- int n_spans,
- gboolean sorted,
- GdkSpanFunc function,
- gpointer data);
-
- G_END_DECLS
-
- #endif /* __GDK_REGION_H__ */
-
-