/* 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" #ifndef USE_BACKING_STORE #ifndef GDK_WINDOWING_WIN32 #define USE_BACKING_STORE /* Doesn't work yet on Win32 */ #endif #endif 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); static void gdk_window_draw_glyphs (GdkDrawable *drawable, GdkGC *gc, PangoFont *font, gint x, gint y, PangoGlyphString *glyphs); static void gdk_window_free_paint_stack (GdkWindow *window); /* 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, gdk_window_draw_glyphs, }; 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; } /** * _gdk_window_destroy_heirarchy: * @window: a #GdkWindow * @recursing: If TRUE, then this is being called because a parent * was destroyed. This generally means that the call to the windowing system * to destroy the window can be omitted, since it will be destroyed as a result * of the parent being destroyed. Unless @foreign_destroy * * foreign_destroy: If TRUE, the window or a parent was destroyed by some external * agency. The window has already been destroyed and no windowing * system calls should be made. (This may never happen for some * windowing systems.) * * Internal function to destroy a window. Like gdk_window_destroy(), but does not * drop the reference count created by gdk_window_new(). **/ static void _gdk_window_destroy_heirarchy (GdkWindow *window, gboolean recursing, gboolean foreign_destroy) { GdkWindowPrivate *private; GdkWindowPrivate *temp_private; GdkWindow *temp_window; GList *children; GList *tmp; g_return_if_fail (window != NULL); private = (GdkWindowPrivate*) window; switch (private->drawable.window_type) { case GDK_WINDOW_TOPLEVEL: case GDK_WINDOW_CHILD: case GDK_WINDOW_DIALOG: case GDK_WINDOW_TEMP: case GDK_WINDOW_FOREIGN: if (!GDK_DRAWABLE_DESTROYED (window)) { private->mapped = FALSE; private->drawable.destroyed = TRUE; _gdk_windowing_window_destroy (window, recursing, foreign_destroy); if (private->parent) { GdkWindowPrivate *parent_private = (GdkWindowPrivate *)private->parent; if (parent_private->children) parent_private->children = g_list_remove (parent_private->children, window); } _gdk_window_clear_update_area (window); gdk_window_free_paint_stack (window); if (private->bg_pixmap && private->bg_pixmap != GDK_PARENT_RELATIVE_BG) { gdk_pixmap_unref (private->bg_pixmap); private->bg_pixmap = NULL; } if (GDK_DRAWABLE_TYPE (window) != GDK_WINDOW_FOREIGN) { children = tmp = private->children; private->children = NULL; while (tmp) { temp_window = tmp->data; tmp = tmp->next; temp_private = (GdkWindowPrivate*) temp_window; if (temp_private) _gdk_window_destroy_heirarchy (temp_window, TRUE, foreign_destroy); } g_list_free (children); } if (private->filters) { tmp = private->filters; while (tmp) { g_free (tmp->data); tmp = tmp->next; } g_list_free (private->filters); private->filters = NULL; } if (private->drawable.colormap) { gdk_colormap_unref (private->drawable.colormap); private->drawable.colormap = NULL; } } break; case GDK_WINDOW_ROOT: g_error ("attempted to destroy root window"); break; case GDK_WINDOW_PIXMAP: g_error ("called gdk_window_destroy on a pixmap (use gdk_pixmap_unref)"); break; } } /** * _gdk_window_destroy: * @window: a #GdkWindow * foreign_destroy: If TRUE, the window or a parent was destroyed by some external * agency. The window has already been destroyed and no windowing * system calls should be made. (This may never happen for some * windowing systems.) * * Internal function to destroy a window. Like gdk_window_destroy(), but does not * drop the reference count created by gdk_window_new(). **/ void _gdk_window_destroy (GdkWindow *window, gboolean foreign_destroy) { _gdk_window_destroy_heirarchy (window, FALSE, foreign_destroy); } void gdk_window_destroy (GdkWindow *window) { _gdk_window_destroy_heirarchy (window, FALSE, FALSE); gdk_drawable_unref (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) { #ifdef USE_BACKING_STORE 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)); if (GDK_DRAWABLE_DESTROYED (window)) return; 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); #endif /* USE_BACKING_STORE */ } void gdk_window_end_paint (GdkWindow *window) { #ifdef USE_BACKING_STORE 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)); if (GDK_DRAWABLE_DESTROYED (window)) return; 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); #endif /* USE_BACKING_STORE */ } static void gdk_window_free_paint_stack (GdkWindow *window) { GdkWindowPrivate *private = (GdkWindowPrivate *)window; if (private->paint_stack) { GSList *tmp_list = private->paint_stack; while (tmp_list) { GdkWindowPaint *paint = tmp_list->data; if (tmp_list == private->paint_stack) gdk_drawable_unref (paint->pixmap); gdk_region_destroy (paint->region); g_free (paint); tmp_list = tmp_list->next; } g_slist_free (private->paint_stack); private->paint_stack = NULL; } } 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; ipaint_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; ipaint_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; ipaint_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; ipaint_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); } static void gdk_window_draw_glyphs (GdkDrawable *drawable, GdkGC *gc, PangoFont *font, gint x, gint y, PangoGlyphString *glyphs) { GdkWindowPrivate *private = (GdkWindowPrivate *)drawable; OFFSET_GC (gc); if (private->paint_stack) { GdkWindowPaint *paint = private->paint_stack->data; gdk_draw_glyphs (paint->pixmap, gc, font, x - x_offset, y - y_offset, glyphs); } else _gdk_windowing_window_class.draw_glyphs (drawable, gc, font, x - x_offset, y - y_offset, glyphs); 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 (GdkWindow *window) { GdkWindowPrivate *private = (GdkWindowPrivate *)window; g_return_if_fail (window != NULL); g_return_if_fail (GDK_IS_WINDOW (window)); gdk_window_clear_area (window, 0, 0, private->drawable.width, private->drawable.height); } 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; static void gdk_window_process_updates_internal (GdkWindow *window) { GdkWindowPrivate *private = (GdkWindowPrivate *)window; gboolean save_region = FALSE; /* If an update got queued during update processing, we can get a * window in the update queue that has an empty update_area. * just ignore it. */ if (private->update_area) { GdkRegion *update_area = private->update_area; private->update_area = NULL; 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, update_area); event.expose.type = GDK_EXPOSE; event.expose.window = gdk_window_ref (window); event.expose.count = 0; gdk_region_get_clipbox (update_area, &event.expose.area); if (gdk_rectangle_intersect (&event.expose.area, &window_rect, &event.expose.area)) { (*gdk_event_func) (&event, gdk_event_data); } gdk_window_unref (window); } if (!save_region) gdk_region_destroy (update_area); } } 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) { GdkRectangle window_rect; GdkWindowPrivate *private = (GdkWindowPrivate *)window; g_return_if_fail (window != NULL); g_return_if_fail (GDK_IS_WINDOW (window)); if (GDK_DRAWABLE_DESTROYED (window)) return; if (!rect) { window_rect.x = 0; window_rect.y = 0; window_rect.width = private->drawable.width; window_rect.height = private->drawable.height; rect = &window_rect; } 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 (GDK_DRAWABLE_DESTROYED (window)) return; 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; } /** * _gdk_window_clear_update_area: * @window: a #GdkWindow. * * Internal function to clear the update area for a window. This * is called when the window is hidden or destroyed. **/ void _gdk_window_clear_update_area (GdkWindow *window) { GdkWindowPrivate *private = (GdkWindowPrivate *)window; g_return_if_fail (window != NULL); g_return_if_fail (GDK_IS_WINDOW (window)); if (private->update_area) { update_windows = g_slist_remove (update_windows, window); gdk_region_destroy (private->update_area); private->update_area = 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); }