Pileus Git - ~andy/gtk/blob - gdk/gdkregion.h

   1 #ifndef __GDK_REGION_H__
   2 #define __GDK_REGION_H__
   3
   4 #include <gdk/gdktypes.h>
   5
   6 #ifdef __cplusplus
   7 extern "C" {
   8 #endif /* __cplusplus */
   9
  10 /* GC fill rule for polygons
  11  *  EvenOddRule
  12  *  WindingRule
  13  */
  14 typedef enum
  15 {
  16   GDK_EVEN_ODD_RULE,
  17   GDK_WINDING_RULE
  18 } GdkFillRule;
  19
  20 /* Types of overlapping between a rectangle and a region
  21  * GDK_OVERLAP_RECTANGLE_IN: rectangle is in region
  22  * GDK_OVERLAP_RECTANGLE_OUT: rectangle in not in region
  23  * GDK_OVERLAP_RECTANGLE_PART: rectangle in partially in region
  24  */
  25 typedef enum
  26 {
  27   GDK_OVERLAP_RECTANGLE_IN,
  28   GDK_OVERLAP_RECTANGLE_OUT,
  29   GDK_OVERLAP_RECTANGLE_PART
  30 } GdkOverlapType;
  31
  32 GdkRegion *gdk_region_new       (void);
  33 GdkRegion *gdk_region_polygon   (GdkPoint     *points,
  34                                  gint          npoints,
  35                                  GdkFillRule   fill_rule);
  36 GdkRegion *gdk_region_copy      (GdkRegion    *region);
  37 GdkRegion *gdk_region_rectangle (GdkRectangle *rectangle);
  38 void       gdk_region_destroy   (GdkRegion    *region);
  39
  40 void           gdk_region_get_clipbox (GdkRegion    *region,
  41                                        GdkRectangle *rectangle);
  42
  43 gboolean       gdk_region_empty    (GdkRegion    *region);
  44 gboolean       gdk_region_equal    (GdkRegion    *region1,
  45                                     GdkRegion    *region2);
  46 gboolean       gdk_region_point_in (GdkRegion    *region,
  47                                     int           x,
  48                                     int           y);
  49 GdkOverlapType gdk_region_rect_in  (GdkRegion    *region,
  50                                     GdkRectangle *rect);
  51
  52 void gdk_region_offset          (GdkRegion    *region,
  53                                  gint          dx,
  54                                  gint          dy);
  55 void gdk_region_shrink          (GdkRegion    *region,
  56                                  gint          dx,
  57                                  gint          dy);
  58 void gdk_region_union_with_rect (GdkRegion    *region,
  59                                  GdkRectangle *rect);
  60 void gdk_region_intersect       (GdkRegion    *source1,
  61                                  GdkRegion    *source2);
  62 void gdk_region_union           (GdkRegion    *source1,
  63                                  GdkRegion    *source2);
  64 void gdk_region_subtract        (GdkRegion    *source1,
  65                                  GdkRegion    *source2);
  66 void gdk_region_xor             (GdkRegion    *source1,
  67                                  GdkRegion    *source2);
  68
  69 #ifdef __cplusplus
  70 }
  71 #endif /* __cplusplus */
  72
  73 #endif /* __GDK_REGION_H__ */