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gtk/gdk/gdkwindow.c
Owen Taylor 8098546227 Merge no-flicker branch into HEAD
2000-03-28 01:24:44 +00:00

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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 Library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library 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 1997-1999. 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/.
*/
#include "gdkwindow.h"
#include "gdkinternals.h"
#include "gdk.h" /* For gdk_rectangle_union() */
#include "gdkpixmap.h"
typedef struct _GdkWindowPaint GdkWindowPaint;
struct _GdkWindowPaint
{
GdkRegion *region;
GdkPixmap *pixmap;
gint x_offset;
gint y_offset;
};
static void gdk_window_draw_destroy (GdkDrawable *drawable);
static GdkGC *gdk_window_draw_create_gc (GdkDrawable *drawable,
GdkGCValues *values,
GdkGCValuesMask mask);
static void gdk_window_draw_rectangle (GdkDrawable *drawable,
GdkGC *gc,
gint filled,
gint x,
gint y,
gint width,
gint height);
static void gdk_window_draw_arc (GdkDrawable *drawable,
GdkGC *gc,
gint filled,
gint x,
gint y,
gint width,
gint height,
gint angle1,
gint angle2);
static void gdk_window_draw_polygon (GdkDrawable *drawable,
GdkGC *gc,
gint filled,
GdkPoint *points,
gint npoints);
static void gdk_window_draw_text (GdkDrawable *drawable,
GdkFont *font,
GdkGC *gc,
gint x,
gint y,
const gchar *text,
gint text_length);
static void gdk_window_draw_text_wc (GdkDrawable *drawable,
GdkFont *font,
GdkGC *gc,
gint x,
gint y,
const GdkWChar *text,
gint text_length);
static void gdk_window_draw_drawable (GdkDrawable *drawable,
GdkGC *gc,
GdkPixmap *src,
gint xsrc,
gint ysrc,
gint xdest,
gint ydest,
gint width,
gint height);
static void gdk_window_draw_points (GdkDrawable *drawable,
GdkGC *gc,
GdkPoint *points,
gint npoints);
static void gdk_window_draw_segments (GdkDrawable *drawable,
GdkGC *gc,
GdkSegment *segs,
gint nsegs);
static void gdk_window_draw_lines (GdkDrawable *drawable,
GdkGC *gc,
GdkPoint *points,
gint npoints);
/* All drawing operations on windows are forwarded through the following
* class to enable the automatic-backing-store feature.
*/
GdkDrawableClass _gdk_window_class = {
gdk_window_draw_destroy,
gdk_window_draw_create_gc,
gdk_window_draw_rectangle,
gdk_window_draw_arc,
gdk_window_draw_polygon,
gdk_window_draw_text,
gdk_window_draw_text_wc,
gdk_window_draw_drawable,
gdk_window_draw_points,
gdk_window_draw_segments,
gdk_window_draw_lines
};
GdkWindow *
_gdk_window_alloc (void)
{
GdkWindowPrivate *private = g_new (GdkWindowPrivate, 1);
GdkWindow *window = (GdkWindow*) private;
window->user_data = NULL;
private->drawable.ref_count = 1;
private->drawable.destroyed = FALSE;
private->drawable.klass = NULL;
private->drawable.klass_data = NULL;
private->drawable.window_type = GDK_WINDOW_CHILD;
private->drawable.width = 1;
private->drawable.height = 1;
private->drawable.colormap = NULL;
private->parent = NULL;
private->x = 0;
private->y = 0;
private->resize_count = 0;
private->mapped = FALSE;
private->guffaw_gravity = FALSE;
private->extension_events = FALSE;
private->filters = NULL;
private->children = NULL;
private->bg_color.pixel = 0;
private->bg_color.red = 0;
private->bg_color.green = 0;
private->bg_color.blue = 0;
private->bg_pixmap = NULL;
private->paint_stack = NULL;
private->update_area = NULL;
private->update_freeze_count = 0;
return window;
}
void
gdk_window_set_user_data (GdkWindow *window,
gpointer user_data)
{
g_return_if_fail (window != NULL);
window->user_data = user_data;
}
void
gdk_window_get_user_data (GdkWindow *window,
gpointer *data)
{
g_return_if_fail (window != NULL);
*data = window->user_data;
}
void
gdk_window_get_position (GdkWindow *window,
gint *x,
gint *y)
{
GdkWindowPrivate *window_private;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
window_private = (GdkWindowPrivate*) window;
if (x)
*x = window_private->x;
if (y)
*y = window_private->y;
}
GdkWindow*
gdk_window_get_parent (GdkWindow *window)
{
g_return_val_if_fail (window != NULL, NULL);
g_return_val_if_fail (GDK_IS_WINDOW (window), NULL);
return ((GdkWindowPrivate*) window)->parent;
}
GdkWindow*
gdk_window_get_toplevel (GdkWindow *window)
{
GdkWindowPrivate *private;
g_return_val_if_fail (window != NULL, NULL);
g_return_val_if_fail (GDK_IS_WINDOW (window), NULL);
private = (GdkWindowPrivate *)window;
while (GDK_DRAWABLE_TYPE (private) == GDK_WINDOW_CHILD)
private = (GdkWindowPrivate *)private->parent;
return (GdkWindow *)window;
}
void
gdk_window_add_filter (GdkWindow *window,
GdkFilterFunc function,
gpointer data)
{
GdkWindowPrivate *private;
GList *tmp_list;
GdkEventFilter *filter;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
private = (GdkWindowPrivate*) window;
if (private && GDK_DRAWABLE_DESTROYED (window))
return;
if (private)
tmp_list = private->filters;
else
tmp_list = gdk_default_filters;
while (tmp_list)
{
filter = (GdkEventFilter *)tmp_list->data;
if ((filter->function == function) && (filter->data == data))
return;
tmp_list = tmp_list->next;
}
filter = g_new (GdkEventFilter, 1);
filter->function = function;
filter->data = data;
if (private)
private->filters = g_list_append (private->filters, filter);
else
gdk_default_filters = g_list_append (gdk_default_filters, filter);
}
void
gdk_window_remove_filter (GdkWindow *window,
GdkFilterFunc function,
gpointer data)
{
GdkWindowPrivate *private;
GList *tmp_list, *node;
GdkEventFilter *filter;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
private = (GdkWindowPrivate*) window;
if (private)
tmp_list = private->filters;
else
tmp_list = gdk_default_filters;
while (tmp_list)
{
filter = (GdkEventFilter *)tmp_list->data;
node = tmp_list;
tmp_list = tmp_list->next;
if ((filter->function == function) && (filter->data == data))
{
if (private)
private->filters = g_list_remove_link (private->filters, node);
else
gdk_default_filters = g_list_remove_link (gdk_default_filters, node);
g_list_free_1 (node);
g_free (filter);
return;
}
}
}
GList *
gdk_window_get_toplevels (void)
{
GList *new_list = NULL;
GList *tmp_list;
tmp_list = ((GdkWindowPrivate *)gdk_parent_root)->children;
while (tmp_list)
{
new_list = g_list_prepend (new_list, tmp_list->data);
tmp_list = tmp_list->next;
}
return new_list;
}
/*************************************************************
* gdk_window_is_visible:
* Check if the given window is mapped.
* arguments:
* window:
* results:
* is the window mapped
*************************************************************/
gboolean
gdk_window_is_visible (GdkWindow *window)
{
GdkWindowPrivate *private = (GdkWindowPrivate *)window;
g_return_val_if_fail (window != NULL, FALSE);
g_return_val_if_fail (GDK_IS_WINDOW (window), FALSE);
return private->mapped;
}
/*************************************************************
* gdk_window_is_viewable:
* Check if the window and all ancestors of the window
* are mapped. (This is not necessarily "viewable" in
* the X sense, since we only check as far as we have
* GDK window parents, not to the root window)
* arguments:
* window:
* results:
* is the window viewable
*************************************************************/
gboolean
gdk_window_is_viewable (GdkWindow *window)
{
GdkWindowPrivate *private = (GdkWindowPrivate *)window;
g_return_val_if_fail (window != NULL, FALSE);
g_return_val_if_fail (GDK_IS_WINDOW (window), FALSE);
while (private &&
(private != (GdkWindowPrivate *)gdk_parent_root) &&
(private->drawable.window_type != GDK_WINDOW_FOREIGN))
{
if (!private->mapped)
return FALSE;
private = (GdkWindowPrivate *)private->parent;
}
return TRUE;
}
void
gdk_window_begin_paint_rect (GdkWindow *window,
GdkRectangle *rectangle)
{
GdkRegion *region;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
region = gdk_region_rectangle (rectangle);
gdk_window_begin_paint_region (window, region);
gdk_region_destroy (region);
}
static GdkGC *
gdk_window_get_bg_gc (GdkWindow *window, GdkWindowPaint *paint)
{
GdkWindowPrivate *private = (GdkWindowPrivate *)window;
guint gc_mask = 0;
GdkGCValues gc_values;
if (private->bg_pixmap == GDK_PARENT_RELATIVE_BG && private->parent)
{
GdkWindowPaint tmp_paint = *paint;
tmp_paint.x_offset += private->x;
tmp_paint.y_offset += private->y;
return gdk_window_get_bg_gc (private->parent, &tmp_paint);
}
else if (private->bg_pixmap && private->bg_pixmap != GDK_PARENT_RELATIVE_BG && private->bg_pixmap != GDK_NO_BG)
{
gc_values.fill = GDK_TILED;
gc_values.tile = private->bg_pixmap;
gc_values.ts_x_origin = - paint->x_offset;
gc_values.ts_y_origin = - paint->y_offset;
gc_mask = GDK_GC_FILL | GDK_GC_TILE | GDK_GC_TS_X_ORIGIN | GDK_GC_TS_Y_ORIGIN;
}
else
{
gc_values.foreground = private->bg_color;
gc_mask = GDK_GC_FOREGROUND;
}
return gdk_gc_new_with_values (paint->pixmap, &gc_values, gc_mask);
}
static void
gdk_window_paint_init_bg (GdkWindow *window,
GdkWindowPaint *paint,
GdkRegion *init_region)
{
GdkGC *tmp_gc;
tmp_gc = gdk_window_get_bg_gc (window, paint);
gdk_draw_rectangle (paint->pixmap, tmp_gc, TRUE, 0, 0, -1, -1);
gdk_gc_unref (tmp_gc);
}
void
gdk_window_begin_paint_region (GdkWindow *window,
GdkRegion *region)
{
GdkWindowPrivate *private = (GdkWindowPrivate *)window;
GdkRectangle clip_box;
GdkWindowPaint *paint;
GdkRegion *init_region;
GdkGC *tmp_gc;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
paint = g_new (GdkWindowPaint, 1);
paint->region = gdk_region_copy (region);
init_region = gdk_region_copy (region);
gdk_region_get_clipbox (paint->region, &clip_box);
if (private->paint_stack)
{
gint old_width, old_height;
GdkWindowPaint *tmp_paint = private->paint_stack->data;
GdkRectangle old_rect, new_rect;
GSList *tmp_list;
gdk_drawable_get_size (tmp_paint->pixmap, &old_width, &old_height);
old_rect.x = tmp_paint->x_offset;
old_rect.y = tmp_paint->y_offset;
old_rect.width = old_width;
old_rect.height = old_height;
gdk_rectangle_union (&clip_box, &old_rect, &new_rect);
if (new_rect.width > old_rect.width || new_rect.height > old_rect.height)
{
paint->pixmap = gdk_pixmap_new (window, new_rect.width, new_rect.height, -1);
tmp_gc = gdk_gc_new (paint->pixmap);
gdk_draw_drawable (paint->pixmap, tmp_gc, tmp_paint->pixmap,
0, 0, old_rect.width, old_rect.height,
old_rect.x - new_rect.x, old_rect.y - new_rect.y);
gdk_gc_unref (tmp_gc);
gdk_drawable_unref (tmp_paint->pixmap);
paint->x_offset = new_rect.x;
paint->y_offset = new_rect.y;
tmp_list = private->paint_stack;
while (tmp_list)
{
tmp_paint = private->paint_stack->data;
gdk_region_subtract (init_region, tmp_paint->region);
tmp_paint->pixmap = paint->pixmap;
tmp_paint->x_offset = paint->x_offset;
tmp_paint->y_offset = paint->x_offset;
tmp_list = tmp_list->next;
}
}
else
{
paint->x_offset = tmp_paint->x_offset;
paint->y_offset = tmp_paint->y_offset;
paint->pixmap = tmp_paint->pixmap;
tmp_list = private->paint_stack;
while (tmp_list)
{
tmp_paint = private->paint_stack->data;
gdk_region_subtract (init_region, tmp_paint->region);
tmp_list = tmp_list->next;
}
}
}
else
{
paint->x_offset = clip_box.x;
paint->y_offset = clip_box.y;
paint->pixmap = gdk_pixmap_new (window, clip_box.width, clip_box.height, -1);
}
if (!gdk_region_empty (init_region))
gdk_window_paint_init_bg (window, paint, init_region);
gdk_region_destroy (init_region);
private->paint_stack = g_slist_prepend (private->paint_stack, paint);
}
void
gdk_window_end_paint (GdkWindow *window)
{
GdkWindowPrivate *private = (GdkWindowPrivate *)window;
GdkWindowPaint *paint;
GdkGC *tmp_gc;
GdkRectangle clip_box;
gint x_offset, y_offset;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
g_return_if_fail (private->paint_stack != NULL);
paint = private->paint_stack->data;
private->paint_stack = g_slist_delete_link (private->paint_stack, private->paint_stack);
gdk_region_get_clipbox (paint->region, &clip_box);
tmp_gc = gdk_gc_new (window);
_gdk_windowing_window_get_offsets (window, &x_offset, &y_offset);
gdk_gc_set_clip_region (tmp_gc, paint->region);
gdk_gc_set_clip_origin (tmp_gc, -x_offset, -y_offset);
_gdk_windowing_window_class.draw_drawable (window, tmp_gc, paint->pixmap,
clip_box.x - paint->x_offset,
clip_box.y - paint->y_offset,
clip_box.x - x_offset, clip_box.y - y_offset,
clip_box.width, clip_box.height);
gdk_gc_unref (tmp_gc);
if (private->paint_stack)
{
GSList *tmp_list = private->paint_stack;
while (tmp_list)
{
GdkWindowPaint *tmp_paint = tmp_list->data;
gdk_region_subtract (tmp_paint->region, paint->region);
tmp_list = tmp_list->next;
}
}
else
gdk_drawable_unref (paint->pixmap);
gdk_region_destroy (paint->region);
g_free (paint);
}
static void
gdk_window_get_offsets (GdkWindow *window,
gint *x_offset,
gint *y_offset)
{
GdkWindowPrivate *private = (GdkWindowPrivate *)window;
if (private->paint_stack)
{
GdkWindowPaint *paint = private->paint_stack->data;
*x_offset = paint->x_offset;
*y_offset = paint->y_offset;
}
else
_gdk_windowing_window_get_offsets (window, x_offset, y_offset);
}
#define OFFSET_GC(gc) \
gint x_offset, y_offset; \
gint old_clip_x = ((GdkGCPrivate *)gc)->clip_x_origin; \
gint old_clip_y = ((GdkGCPrivate *)gc)->clip_y_origin; \
gint old_ts_x = ((GdkGCPrivate *)gc)->ts_x_origin; \
gint old_ts_y = ((GdkGCPrivate *)gc)->ts_y_origin; \
gdk_window_get_offsets (drawable, &x_offset, &y_offset); \
if (x_offset != 0 || y_offset != 0) \
{ \
gdk_gc_set_clip_origin (gc, old_clip_x - x_offset, \
old_clip_y - y_offset); \
gdk_gc_set_ts_origin (gc, old_ts_x - x_offset, \
old_ts_y - y_offset); \
}
#define RESTORE_GC(gc) \
if (x_offset != 0 || y_offset != 0) \
{ \
gdk_gc_set_clip_origin (gc, old_clip_x, old_clip_y); \
gdk_gc_set_ts_origin (gc, old_ts_x, old_ts_y); \
}
static void
gdk_window_draw_destroy (GdkDrawable *drawable)
{
_gdk_windowing_window_class.destroy (drawable);
}
static GdkGC *
gdk_window_draw_create_gc (GdkDrawable *drawable,
GdkGCValues *values,
GdkGCValuesMask mask)
{
return _gdk_windowing_window_class.create_gc (drawable, values, mask);
}
static void
gdk_window_draw_rectangle (GdkDrawable *drawable,
GdkGC *gc,
gint filled,
gint x,
gint y,
gint width,
gint height)
{
GdkWindowPrivate *private = (GdkWindowPrivate *)drawable;
OFFSET_GC (gc);
if (private->paint_stack)
{
GdkWindowPaint *paint = private->paint_stack->data;
gdk_draw_rectangle (paint->pixmap, gc, filled,
x - x_offset, y - y_offset, width, height);
}
else
_gdk_windowing_window_class.draw_rectangle (drawable, gc, filled,
x - x_offset, y - y_offset, width, height);
RESTORE_GC (gc);
}
static void
gdk_window_draw_arc (GdkDrawable *drawable,
GdkGC *gc,
gint filled,
gint x,
gint y,
gint width,
gint height,
gint angle1,
gint angle2)
{
GdkWindowPrivate *private = (GdkWindowPrivate *)drawable;
OFFSET_GC (gc);
if (private->paint_stack)
{
GdkWindowPaint *paint = private->paint_stack->data;
gdk_draw_arc (paint->pixmap, gc, filled,
x - x_offset, y_offset,
width, height, angle1, angle2);
}
else
_gdk_windowing_window_class.draw_arc (drawable, gc, filled,
x - x_offset, y - y_offset,
width, height, angle1, angle2);
RESTORE_GC (gc);
}
static void
gdk_window_draw_polygon (GdkDrawable *drawable,
GdkGC *gc,
gint filled,
GdkPoint *points,
gint npoints)
{
GdkWindowPrivate *private = (GdkWindowPrivate *)drawable;
GdkPoint *new_points;
OFFSET_GC (gc);
if (x_offset != 0 || y_offset != 0)
{
int i;
new_points = g_new (GdkPoint, npoints);
for (i=0; i<npoints; i++)
{
new_points[i].x = points[i].x - x_offset;
new_points[i].y = points[i].y - y_offset;
}
}
else
new_points = points;
if (private->paint_stack)
{
GdkWindowPaint *paint = private->paint_stack->data;
gdk_draw_polygon (paint->pixmap, gc, filled, new_points, npoints);
}
else
_gdk_windowing_window_class.draw_polygon (drawable, gc, filled, new_points, npoints);
if (new_points != points)
g_free (new_points);
RESTORE_GC (gc);
}
static void
gdk_window_draw_text (GdkDrawable *drawable,
GdkFont *font,
GdkGC *gc,
gint x,
gint y,
const gchar *text,
gint text_length)
{
GdkWindowPrivate *private = (GdkWindowPrivate *)drawable;
OFFSET_GC (gc);
if (private->paint_stack)
{
GdkWindowPaint *paint = private->paint_stack->data;
gdk_draw_text (paint->pixmap, font, gc,
x - x_offset, y - y_offset, text, text_length);
}
else
_gdk_windowing_window_class.draw_text (drawable, font, gc,
x - x_offset, y - y_offset, text, text_length);
RESTORE_GC (gc);
}
static void
gdk_window_draw_text_wc (GdkDrawable *drawable,
GdkFont *font,
GdkGC *gc,
gint x,
gint y,
const GdkWChar *text,
gint text_length)
{
GdkWindowPrivate *private = (GdkWindowPrivate *)drawable;
OFFSET_GC (gc);
if (private->paint_stack)
{
GdkWindowPaint *paint = private->paint_stack->data;
gdk_draw_text_wc (paint->pixmap, font, gc,
x - x_offset, y - y_offset, text, text_length);
}
else
_gdk_windowing_window_class.draw_text_wc (drawable, font, gc,
x - x_offset, y - y_offset, text, text_length);
RESTORE_GC (gc);
}
static void
gdk_window_draw_drawable (GdkDrawable *drawable,
GdkGC *gc,
GdkPixmap *src,
gint xsrc,
gint ysrc,
gint xdest,
gint ydest,
gint width,
gint height)
{
GdkWindowPrivate *private = (GdkWindowPrivate *)drawable;
OFFSET_GC (gc);
if (private->paint_stack)
{
GdkWindowPaint *paint = private->paint_stack->data;
gdk_draw_drawable (paint->pixmap, gc, src, xsrc, ysrc,
xdest - x_offset, ydest - y_offset, width, height);
}
else
_gdk_windowing_window_class.draw_drawable (drawable, gc, src, xsrc, ysrc,
xdest - x_offset, ydest - y_offset,
width, height);
RESTORE_GC (gc);
}
static void
gdk_window_draw_points (GdkDrawable *drawable,
GdkGC *gc,
GdkPoint *points,
gint npoints)
{
GdkWindowPrivate *private = (GdkWindowPrivate *)drawable;
GdkPoint *new_points;
OFFSET_GC (gc);
if (x_offset != 0 || y_offset != 0)
{
gint i;
new_points = g_new (GdkPoint, npoints);
for (i=0; i<npoints; i++)
{
new_points[i].x = points[i].x - x_offset;
new_points[i].y = points[i].y - y_offset;
}
}
else
new_points = points;
if (private->paint_stack)
{
GdkWindowPaint *paint = private->paint_stack->data;
gdk_draw_points (paint->pixmap, gc, new_points, npoints);
}
else
_gdk_windowing_window_class.draw_points (drawable, gc, points, npoints);
if (new_points != points)
g_free (new_points);
RESTORE_GC (gc);
}
static void
gdk_window_draw_segments (GdkDrawable *drawable,
GdkGC *gc,
GdkSegment *segs,
gint nsegs)
{
GdkWindowPrivate *private = (GdkWindowPrivate *)drawable;
GdkSegment *new_segs;
OFFSET_GC (gc);
if (x_offset != 0 || y_offset != 0)
{
gint i;
new_segs = g_new (GdkSegment, nsegs);
for (i=0; i<nsegs; i++)
{
new_segs[i].x1 = segs[i].x1 - x_offset;
new_segs[i].y1 = segs[i].y1 - y_offset;
new_segs[i].x2 = segs[i].x2 - x_offset;
new_segs[i].y2 = segs[i].y2 - y_offset;
}
}
else
new_segs = segs;
if (private->paint_stack)
{
GdkWindowPaint *paint = private->paint_stack->data;
gdk_draw_segments (paint->pixmap, gc, new_segs, nsegs);
}
else
_gdk_windowing_window_class.draw_segments (drawable, gc, new_segs, nsegs);
if (new_segs != segs)
g_free (new_segs);
RESTORE_GC (gc);
}
static void
gdk_window_draw_lines (GdkDrawable *drawable,
GdkGC *gc,
GdkPoint *points,
gint npoints)
{
GdkWindowPrivate *private = (GdkWindowPrivate *)drawable;
GdkPoint *new_points;
OFFSET_GC (gc);
if (x_offset != 0 || y_offset != 0)
{
gint i;
new_points = g_new (GdkPoint, npoints);
for (i=0; i<npoints; i++)
{
new_points[i].x = points[i].x - x_offset;
new_points[i].y = points[i].y - y_offset;
}
}
else
new_points = points;
if (private->paint_stack)
{
GdkWindowPaint *paint = private->paint_stack->data;
gdk_draw_lines (paint->pixmap, gc, new_points, npoints);
}
else
_gdk_windowing_window_class.draw_lines (drawable, gc, new_points, npoints);
if (new_points != points)
g_free (new_points);
RESTORE_GC (gc);
}
/* Fixme - this is just like gdk_window_paint_init_bg */
static void
gdk_window_clear_backing_rect (GdkWindow *window,
gint x,
gint y,
gint width,
gint height)
{
GdkWindowPrivate *private = (GdkWindowPrivate *)window;
GdkWindowPaint *paint = private->paint_stack->data;
GdkGC *tmp_gc;
tmp_gc = gdk_window_get_bg_gc (window, paint);
gdk_draw_rectangle (paint->pixmap, tmp_gc, TRUE,
x - paint->x_offset, y - paint->y_offset, width, height);
gdk_gc_unref (tmp_gc);
}
void
gdk_window_clear_area (GdkWindow *window,
gint x,
gint y,
gint width,
gint height)
{
GdkWindowPrivate *private = (GdkWindowPrivate *)window;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
if (private->paint_stack)
gdk_window_clear_backing_rect (window, x, y, width, height);
else
_gdk_windowing_window_clear_area (window, x, y, width, height);
}
void
gdk_window_clear_area_e (GdkWindow *window,
gint x,
gint y,
gint width,
gint height)
{
GdkWindowPrivate *private = (GdkWindowPrivate *)window;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
if (private->paint_stack)
gdk_window_clear_backing_rect (window, x, y, width, height);
_gdk_windowing_window_clear_area_e (window, x, y, width, height);
}
void
_gdk_window_draw_image (GdkDrawable *drawable,
GdkGC *gc,
GdkImage *image,
gint xsrc,
gint ysrc,
gint xdest,
gint ydest,
gint width,
gint height)
{
GdkImagePrivate *image_private = (GdkImagePrivate*) image;
GdkWindowPrivate *private = (GdkWindowPrivate *)drawable;
OFFSET_GC (gc);
if (private->paint_stack)
{
GdkWindowPaint *paint = private->paint_stack->data;
image_private->klass->image_put (image, paint->pixmap, gc, xsrc, ysrc,
xdest - x_offset, ydest - y_offset,
width, height);
}
else
image_private->klass->image_put (image, drawable, gc, xsrc, ysrc,
xdest - x_offset, ydest - y_offset,
width, height);
RESTORE_GC (gc);
}
/* Code for dirty-region queueing
*/
static GSList *update_windows = NULL;
static guint update_idle = 0;
#define GDK_PRIORITY_REDRAW (G_PRIORITY_HIGH_IDLE + 20)
static void
gdk_window_process_updates_internal (GdkWindow *window)
{
GdkWindowPrivate *private = (GdkWindowPrivate *)window;
gboolean save_region = FALSE;
if (gdk_event_func)
{
GdkEvent event;
GdkRectangle window_rect;
window_rect.x = 0;
window_rect.y = 0;
window_rect.width = private->drawable.width;
window_rect.height = private->drawable.height;
save_region = _gdk_windowing_window_queue_antiexpose (window, private->update_area);
event.expose.type = GDK_EXPOSE;
event.expose.window = gdk_window_ref ((GdkWindow *)private);
event.expose.count = 0;
gdk_region_get_clipbox (private->update_area, &event.expose.area);
if (gdk_rectangle_intersect (&event.expose.area, &window_rect, &event.expose.area))
{
(*gdk_event_func) (&event, gdk_event_data);
}
}
if (!save_region)
gdk_region_destroy (private->update_area);
private->update_area = NULL;
}
void
gdk_window_process_all_updates (void)
{
GSList *old_update_windows = update_windows;
GSList *tmp_list = update_windows;
if (update_idle)
g_source_remove (update_idle);
update_windows = NULL;
update_idle = 0;
while (tmp_list)
{
gdk_window_process_updates_internal (tmp_list->data);
tmp_list = tmp_list->next;
}
g_slist_free (old_update_windows);
gdk_flush();
}
static gboolean
gdk_window_update_idle (gpointer data)
{
gdk_window_process_all_updates ();
return FALSE;
}
void
gdk_window_process_updates (GdkWindow *window,
gboolean update_children)
{
GdkWindowPrivate *private = (GdkWindowPrivate *)window;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
if (private->update_area)
{
gdk_window_process_updates_internal (window);
update_windows = g_slist_remove (update_windows, window);
}
if (update_children)
{
GList *tmp_list = private->children;
while (tmp_list)
{
gdk_window_process_updates (tmp_list->data, TRUE);
tmp_list = tmp_list->next;
}
}
}
void
gdk_window_invalidate_rect (GdkWindow *window,
GdkRectangle *rect,
gboolean invalidate_children)
{
GdkWindowPrivate *private = (GdkWindowPrivate *)window;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
if (private->update_area)
{
gdk_region_union_with_rect (private->update_area, rect);
}
else
{
update_windows = g_slist_prepend (update_windows, window);
private->update_area = gdk_region_rectangle (rect);
if (!private->update_freeze_count && !update_idle)
update_idle = g_idle_add_full (GDK_PRIORITY_REDRAW,
gdk_window_update_idle, NULL, NULL);
}
if (invalidate_children)
{
GList *tmp_list;
GdkRectangle child_rect, new_rect;
tmp_list = private->children;
while (tmp_list)
{
GdkWindowPrivate *child = tmp_list->data;
tmp_list = tmp_list->next;
/* FIXME: this is a HACK to figure out if the child is
* input-only.
*/
if (child->drawable.colormap)
{
child_rect.x = child->x;
child_rect.y = child->y;
child_rect.width = child->drawable.width;
child_rect.height = child->drawable.height;
if (gdk_rectangle_intersect (rect, &child_rect, &new_rect))
{
new_rect.x -= child_rect.x;
new_rect.y -= child_rect.y;
gdk_window_invalidate_rect ((GdkWindow *)child, &new_rect, TRUE);
}
}
}
}
}
void
gdk_window_invalidate_region (GdkWindow *window,
GdkRegion *region,
gboolean invalidate_children)
{
GdkWindowPrivate *private = (GdkWindowPrivate *)window;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
if (private->input_only)
return;
if (private->update_area)
{
gdk_region_union (private->update_area, region);
}
else
{
update_windows = g_slist_prepend (update_windows, window);
private->update_area = gdk_region_copy (region);
if (!private->update_freeze_count && !update_idle)
update_idle = g_idle_add_full (GDK_PRIORITY_REDRAW,
gdk_window_update_idle, NULL, NULL);
}
if (invalidate_children)
{
GList *tmp_list;
GdkRectangle child_rect;
GdkRegion *child_region;
tmp_list = private->children;
while (tmp_list)
{
GdkWindowPrivate *child = tmp_list->data;
tmp_list = tmp_list->next;
if (child->input_only)
{
child_rect.x = child->x;
child_rect.y = child->y;
child_rect.width = child->drawable.width;
child_rect.height = child->drawable.height;
child_region = gdk_region_rectangle (&child_rect);
gdk_region_intersect (child_region, region);
if (!gdk_region_empty (child_region))
{
gdk_region_offset (child_region, - child_rect.x, - child_rect.y);
gdk_window_invalidate_region ((GdkWindow *)child, child_region, TRUE);
}
gdk_region_destroy (child_region);
}
}
}
}
GdkRegion *
gdk_window_get_update_area (GdkWindow *window)
{
GdkWindowPrivate *private = (GdkWindowPrivate *)window;
GdkRegion *tmp_region;
g_return_val_if_fail (window != NULL, NULL);
g_return_val_if_fail (GDK_IS_WINDOW (window), NULL);
if (private->update_area)
{
tmp_region = private->update_area;
private->update_area = NULL;
update_windows = g_slist_remove (update_windows, window);
return tmp_region;
}
else
return NULL;
}
void
gdk_window_freeze_updates (GdkWindow *window)
{
GdkWindowPrivate *private = (GdkWindowPrivate *)window;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
private->update_freeze_count++;
}
void
gdk_window_thaw_updates (GdkWindow *window)
{
GdkWindowPrivate *private = (GdkWindowPrivate *)window;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
g_return_if_fail (private->update_freeze_count > 0);
private->update_freeze_count--;
if (!private->update_freeze_count && private->update_area && !update_idle)
update_idle = g_idle_add_full (GDK_PRIORITY_REDRAW,
gdk_window_update_idle, NULL, NULL);
}
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