gtk2/gdk/gdkregion.h
Alexander Larsson 5b4c8afa7e i2000-11-22 Alexander Larsson <alexl@redhat.com>
* gdk/gdktypes.h:
	Add new type GdkSpan

	* docs/reference/gdk/gdk-sections.txt,
	docs/reference/gdk/tmpl/regions.sgml, gdk/gdkregion-generic.c,
	gdk/gdkregion.h:
	Implement and document gdk_region_spans_intersect_foreach.

	* gdk/linux-fb/Makefile.am, gdk/linux-fb/gdkrender-fb.c:
	Add new file gdkrender-fb.c which contains all core
	rendering code.
	Add gdk_fb_fill_rectangle_generic (old rectangle code) and
	gdk_fb_fill_rectangle_simple_16, gdk_fb_fill_rectangle_simple_32
	(optimized rectangle fillers).

	* gdk/linux-fb/gdkdrawable-fb2.c:
	Move all rendering code to gdkrender-fb.c.
	Change from using GdkRectangles and GdkSegments for spans to GdkSpan.
	Use the new span intersection functions in gdk_fb_fill_spans.
	gdk_fb_draw_rectangle() clips filled rectangles and calls
	gc->fill_rectangle with the result.
	gdk_fb_fill_spans() gets extra argument "sorted".

	* gdk/linux-fb/gdkevents-fb.c:
	Remove unused includes and defines.
	New function gdk_fb_get_time() to get correct time for events.

	* gdk/linux-fb/gdkinput-ps2.c:
	Use gdk method of generating multiple-clicks (gdk_event_button_generate)
	Make sure to set the time of all events.

	* gdk/linux-fb/gdkmain-fb.c:
	Use gdk_fb_get_time ().

	* gdk/linux-fb/gdkprivate-fb.h:
	New virtual GC calls: fill_span & fill_rectangle.
	Export gdk_fb_get_time().
	gdk_fb_fill_spans() gets extra argument "sorted".

	* gdk/linux-fb/mi*.c:
	Use GdkSpan instead of GdkRectangle.
	Pass correct sorted to gdk_fb_fill_spans. (sorted value taken
	from XFree 4 source)
2000-11-22 10:07:34 +00:00

85 lines
2.3 KiB
C

#ifndef __GDK_REGION_H__
#define __GDK_REGION_H__
#include <gdk/gdktypes.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/* 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);
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);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __GDK_REGION_H__ */