forked from AuroraMiddleware/gtk
d22fd7223c
We now consider non-native windows non-opaque, which means any invalid area in a subwindow will also be invalid all the way up to the nearest native windows. We take advantage of this by ignoring all expose events on non-native windows (which typically means just the toplevel) and instead propagating down the draw() calls to children directly via gtk_container_propagate_draw. This is nice as it means we always draw widgets the same way, and it will let us do some interesting ways in the future. We also clean up the GtkWidget opacity handling as we can now always rely on the draing happening via cairo. We can't really just draw by walking down the widget hierarchy, as this doesn't get the clipping right (so e.g. widgets doing cairo_paint may draw outside the expected gdkwindow subarea) nor does it let us paint window backgrounds. So, we now do multiple draws for each widget, once for each GdkWindow, although we still do it on the same base cairo_t that we get for the toplevel native window. The difference is only the clipping, the rendering order, and which other widgets we propagate into. We also collect all the windows of a widget so we can expose them inside the same opacity group if needed. NOTE: This change neuters gtk_widget_set_double_buffered for widgets without native windows. Its impossible to disable the double buffering in this model.
155 lines
8.2 KiB
C
155 lines
8.2 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#ifndef __GTK_WIDGET_PRIVATE_H__
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#define __GTK_WIDGET_PRIVATE_H__
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#include "gtkcsstypesprivate.h"
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#include "gtkwidget.h"
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#include "gactionmuxer.h"
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G_BEGIN_DECLS
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void _gtk_widget_set_visible_flag (GtkWidget *widget,
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gboolean visible);
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gboolean _gtk_widget_get_in_reparent (GtkWidget *widget);
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void _gtk_widget_set_in_reparent (GtkWidget *widget,
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gboolean in_reparent);
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gboolean _gtk_widget_get_anchored (GtkWidget *widget);
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void _gtk_widget_set_anchored (GtkWidget *widget,
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gboolean anchored);
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gboolean _gtk_widget_get_shadowed (GtkWidget *widget);
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void _gtk_widget_set_shadowed (GtkWidget *widget,
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gboolean shadowed);
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gboolean _gtk_widget_get_alloc_needed (GtkWidget *widget);
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void _gtk_widget_set_alloc_needed (GtkWidget *widget,
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gboolean alloc_needed);
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void _gtk_widget_draw (GtkWidget *widget,
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cairo_t *cr);
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void _gtk_widget_add_sizegroup (GtkWidget *widget,
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gpointer group);
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void _gtk_widget_remove_sizegroup (GtkWidget *widget,
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gpointer group);
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GSList *_gtk_widget_get_sizegroups (GtkWidget *widget);
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void _gtk_widget_add_attached_window (GtkWidget *widget,
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GtkWindow *window);
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void _gtk_widget_remove_attached_window (GtkWidget *widget,
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GtkWindow *window);
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void _gtk_widget_override_size_request (GtkWidget *widget,
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int width,
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int height,
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int *old_width,
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int *old_height);
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void _gtk_widget_restore_size_request (GtkWidget *widget,
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int old_width,
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int old_height);
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void _gtk_widget_compute_size_for_orientation (GtkWidget *widget,
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GtkOrientation orientation,
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gint for_size,
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gint *minimum_size,
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gint *natural_size,
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gint *minimum_baseline,
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gint *natural_baseline);
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void _gtk_widget_get_preferred_size_for_size (GtkWidget *widget,
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GtkOrientation orientation,
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gint size,
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gint *minimum,
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gint *natural,
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gint *minimum_baseline,
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gint *natural_baseline);
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gboolean _gtk_widget_has_baseline_support (GtkWidget *widget);
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gboolean _gtk_widget_get_translation_to_window (GtkWidget *widget,
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GdkWindow *window,
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int *x,
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int *y);
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const gchar* _gtk_widget_get_accel_path (GtkWidget *widget,
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gboolean *locked);
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AtkObject * _gtk_widget_peek_accessible (GtkWidget *widget);
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GdkWindow * _gtk_cairo_get_event_window (cairo_t *cr);
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GdkEventExpose * _gtk_cairo_get_event (cairo_t *cr);
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void _gtk_widget_set_has_default (GtkWidget *widget,
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gboolean has_default);
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void _gtk_widget_set_has_grab (GtkWidget *widget,
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gboolean has_grab);
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void _gtk_widget_set_is_toplevel (GtkWidget *widget,
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gboolean is_toplevel);
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void _gtk_widget_grab_notify (GtkWidget *widget,
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gboolean was_grabbed);
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void _gtk_widget_propagate_hierarchy_changed (GtkWidget *widget,
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GtkWidget *previous_toplevel);
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void _gtk_widget_propagate_screen_changed (GtkWidget *widget,
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GdkScreen *previous_screen);
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void _gtk_widget_propagate_composited_changed (GtkWidget *widget);
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void _gtk_widget_set_device_window (GtkWidget *widget,
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GdkDevice *device,
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GdkWindow *pointer_window);
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GdkWindow * _gtk_widget_get_device_window (GtkWidget *widget,
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GdkDevice *device);
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GList * _gtk_widget_list_devices (GtkWidget *widget);
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void _gtk_widget_synthesize_crossing (GtkWidget *from,
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GtkWidget *to,
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GdkDevice *device,
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GdkCrossingMode mode);
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gpointer _gtk_widget_peek_request_cache (GtkWidget *widget);
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void _gtk_widget_buildable_finish_accelerator (GtkWidget *widget,
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GtkWidget *toplevel,
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gpointer user_data);
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GtkStyle * _gtk_widget_get_style (GtkWidget *widget);
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void _gtk_widget_set_style (GtkWidget *widget,
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GtkStyle *style);
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typedef gboolean (*GtkCapturedEventHandler) (GtkWidget *widget, GdkEvent *event);
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void _gtk_widget_set_captured_event_handler (GtkWidget *widget,
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GtkCapturedEventHandler handler);
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gboolean _gtk_widget_captured_event (GtkWidget *widget,
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GdkEvent *event);
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GtkWidgetPath * _gtk_widget_create_path (GtkWidget *widget);
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void _gtk_widget_invalidate_style_context (GtkWidget *widget,
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GtkCssChange change);
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void _gtk_widget_style_context_invalidated (GtkWidget *widget);
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void _gtk_widget_update_parent_muxer (GtkWidget *widget);
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GActionMuxer * _gtk_widget_get_action_muxer (GtkWidget *widget);
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G_END_DECLS
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#endif /* __GTK_WIDGET_PRIVATE_H__ */
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