forked from AuroraMiddleware/gtk
dd94129e27
This creates a listmodel that tracks a widget's children. Doing so turns adding/removing children from O(1) to O(N) though, so use with caution.
494 lines
18 KiB
C
494 lines
18 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 "gtkwidget.h"
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#include "gtkactionmuxerprivate.h"
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#include "gtkcontainer.h"
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#include "gtkcsstypesprivate.h"
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#include "gtkeventcontroller.h"
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#include "gtklistlistmodelprivate.h"
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#include "gtksizerequestcacheprivate.h"
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#include "gtkwindowprivate.h"
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#include "gtkinvisible.h"
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#include "gtkgesture.h"
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G_BEGIN_DECLS
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#define GTK_STATE_FLAGS_BITS 14
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struct _GtkWidgetPrivate
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{
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/* The state of the widget. Needs to be able to hold all GtkStateFlags bits
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* (defined in "gtkenums.h").
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*/
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guint state_flags : GTK_STATE_FLAGS_BITS;
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guint direction : 2;
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#ifdef G_ENABLE_DEBUG
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guint highlight_resize : 1;
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#endif
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guint in_destruction : 1;
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guint toplevel : 1;
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guint anchored : 1;
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guint no_surface : 1;
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guint no_surface_set : 1;
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guint realized : 1;
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guint mapped : 1;
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guint visible : 1;
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guint sensitive : 1;
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guint can_focus : 1;
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guint has_focus : 1;
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guint focus_on_click : 1;
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guint can_default : 1;
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guint has_default : 1;
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guint receives_default : 1;
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guint has_grab : 1;
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guint shadowed : 1;
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guint child_visible : 1;
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guint multidevice : 1;
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guint pass_through : 1;
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/* Queue-resize related flags */
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guint resize_needed : 1; /* queue_resize() has been called but no get_preferred_size() yet */
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guint alloc_needed : 1; /* this widget needs a size_allocate() call */
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guint alloc_needed_on_child : 1; /* 0 or more children - or this widget - need a size_allocate() call */
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/* Queue-draw related flags */
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guint draw_needed : 1;
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/* Expand-related flags */
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guint need_compute_expand : 1; /* Need to recompute computed_[hv]_expand */
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guint computed_hexpand : 1; /* computed results (composite of child flags) */
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guint computed_vexpand : 1;
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guint hexpand : 1; /* application-forced expand */
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guint vexpand : 1;
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guint hexpand_set : 1; /* whether to use application-forced */
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guint vexpand_set : 1; /* instead of computing from children */
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guint has_tooltip : 1;
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/* SizeGroup related flags */
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guint have_size_groups : 1;
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/* Alignment */
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guint halign : 4;
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guint valign : 4;
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guint8 alpha;
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guint8 user_alpha;
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#ifdef G_ENABLE_CONSISTENCY_CHECKS
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/* Number of gtk_widget_push_verify_invariants () */
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guint8 verifying_invariants_count;
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#endif
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int width_request;
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int height_request;
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GtkBorder margin;
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/* Animations and other things to update on clock ticks */
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guint clock_tick_id;
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GList *tick_callbacks;
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/* The widget's name. If the widget does not have a name
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* (the name is NULL), then its name (as returned by
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* "gtk_widget_get_name") is its class's name.
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* Among other things, the widget name is used to determine
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* the style to use for a widget.
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*/
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gchar *name;
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/* The list of attached windows to this widget.
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* We keep a list in order to call reset_style to all of them,
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* recursively.
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*/
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GList *attached_windows;
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/* The style for the widget. The style contains the
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* colors the widget should be drawn in for each state
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* along with graphics contexts used to draw with and
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* the font to use for text.
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*/
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GtkCssNode *cssnode;
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GtkStyleContext *context;
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/* The widget's allocated size */
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GtkAllocation allocated_size;
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gint allocated_size_baseline;
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GtkAllocation allocation;
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gint allocated_baseline;
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/* The widget's requested sizes */
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SizeRequestCache requests;
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/* The render node we draw or %NULL if not yet created.*/
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GskRenderNode *render_node;
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GSList *paintables;
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/* The widget's surface or its parent surface if it does
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* not have a surface. (Which will be indicated by the
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* no_surface field being set).
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*/
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GdkSurface *surface;
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GList *event_controllers;
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AtkObject *accessible;
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/* Widget tree */
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GtkWidget *parent;
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GtkWidget *prev_sibling;
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GtkWidget *next_sibling;
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GtkWidget *first_child;
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GtkWidget *last_child;
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/* only created on-demand */
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GtkListListModel *children_observer;
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GtkListListModel *controller_observer;
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GtkWidget *focus_child;
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/* Pointer cursor */
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GdkCursor *cursor;
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};
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GtkCssNode * gtk_widget_get_css_node (GtkWidget *widget);
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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_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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gboolean gtk_widget_needs_allocate (GtkWidget *widget);
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void gtk_widget_ensure_resize (GtkWidget *widget);
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void gtk_widget_ensure_allocate (GtkWidget *widget);
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void _gtk_widget_scale_changed (GtkWidget *widget);
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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_get_preferred_size_and_baseline(GtkWidget *widget,
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GtkRequisition *minimum_size,
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GtkRequisition *natural_size,
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gint *minimum_baseline,
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gint *natural_baseline);
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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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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_display_changed (GtkWidget *widget,
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GdkDisplay *previous_display);
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void _gtk_widget_set_device_surface (GtkWidget *widget,
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GdkDevice *device,
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GdkSurface *pointer_window);
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GdkSurface * _gtk_widget_get_device_surface (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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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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GtkStyleContext * _gtk_widget_peek_style_context (GtkWidget *widget);
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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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const GdkEvent *event);
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GtkWidgetPath * _gtk_widget_create_path (GtkWidget *widget);
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void gtk_widget_clear_path (GtkWidget *widget);
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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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GtkActionMuxer * _gtk_widget_get_action_muxer (GtkWidget *widget,
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gboolean create);
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GList * _gtk_widget_list_controllers (GtkWidget *widget,
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GtkPropagationPhase phase);
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gboolean _gtk_widget_consumes_motion (GtkWidget *widget,
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GdkEventSequence *sequence);
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gboolean gtk_widget_has_tick_callback (GtkWidget *widget);
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void gtk_widget_set_csd_input_shape (GtkWidget *widget,
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const cairo_region_t *region);
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gboolean gtk_widget_has_size_request (GtkWidget *widget);
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void gtk_widget_reset_controllers (GtkWidget *widget);
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gboolean gtk_widget_query_tooltip (GtkWidget *widget,
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gint x,
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gint y,
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gboolean keyboard_mode,
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GtkTooltip *tooltip);
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void gtk_widget_render (GtkWidget *widget,
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GdkSurface *surface,
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const cairo_region_t *region);
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void gtk_widget_snapshot (GtkWidget *widget,
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GtkSnapshot *snapshot);
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void gtk_widget_adjust_size_request (GtkWidget *widget,
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GtkOrientation orientation,
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gint *minimum_size,
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gint *natural_size);
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void gtk_widget_adjust_size_allocation (GtkWidget *widget,
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GtkOrientation orientation,
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gint *minimum_size,
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gint *natural_size,
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gint *allocated_pos,
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gint *allocated_size);
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void gtk_widget_adjust_baseline_request (GtkWidget *widget,
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gint *minimum_baseline,
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gint *natural_baseline);
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void gtk_widget_forall (GtkWidget *widget,
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GtkCallback callback,
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gpointer user_data);
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GtkWidget *gtk_widget_get_focus_child (GtkWidget *widget);
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void gtk_widget_focus_sort (GtkWidget *widget,
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GtkDirectionType direction,
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GPtrArray *focus_order);
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gboolean gtk_widget_focus_move (GtkWidget *widget,
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GtkDirectionType direction,
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GPtrArray *focus_order);
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void gtk_widget_get_surface_allocation (GtkWidget *widget,
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GtkAllocation *allocation);
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GtkWidget * gtk_widget_common_ancestor (GtkWidget *widget_a,
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GtkWidget *widget_b);
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void gtk_widget_set_pass_through (GtkWidget *widget,
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gboolean pass_through);
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gboolean gtk_widget_get_pass_through (GtkWidget *widget);
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gboolean gtk_widget_emit_event_signals (GtkWidget *widget,
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const GdkEvent *event);
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void gtk_widget_init_legacy_controller (GtkWidget *widget);
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void gtk_widget_get_origin_relative_to_parent (GtkWidget *widget,
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int *origin_x,
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int *origin_y);
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void gtk_widget_cancel_event_sequence (GtkWidget *widget,
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GtkGesture *gesture,
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GdkEventSequence *sequence,
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GtkEventSequenceState state);
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/* inline getters */
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static inline GtkWidget *
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_gtk_widget_get_parent (GtkWidget *widget)
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{
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return widget->priv->parent;
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}
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static inline gboolean
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_gtk_widget_get_visible (GtkWidget *widget)
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{
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return widget->priv->visible;
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}
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static inline gboolean
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_gtk_widget_get_child_visible (GtkWidget *widget)
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{
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return widget->priv->child_visible;
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}
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static inline gboolean
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_gtk_widget_get_mapped (GtkWidget *widget)
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{
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return widget->priv->mapped;
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}
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static inline gboolean
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_gtk_widget_is_drawable (GtkWidget *widget)
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{
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return widget->priv->visible && widget->priv->mapped;
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}
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static inline gboolean
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_gtk_widget_get_has_surface (GtkWidget *widget)
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{
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return !widget->priv->no_surface;
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}
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static inline gboolean
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_gtk_widget_get_realized (GtkWidget *widget)
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{
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return widget->priv->realized;
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}
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static inline gboolean
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_gtk_widget_is_toplevel (GtkWidget *widget)
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{
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return widget->priv->toplevel;
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}
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static inline GtkStateFlags
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_gtk_widget_get_state_flags (GtkWidget *widget)
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{
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return widget->priv->state_flags;
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}
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extern GtkTextDirection gtk_default_direction;
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static inline GtkTextDirection
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_gtk_widget_get_direction (GtkWidget *widget)
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{
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if (widget->priv->direction == GTK_TEXT_DIR_NONE)
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return gtk_default_direction;
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else
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return widget->priv->direction;
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}
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static inline GtkWidget *
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_gtk_widget_get_toplevel (GtkWidget *widget)
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{
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while (widget->priv->parent)
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widget = widget->priv->parent;
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return widget;
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}
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static inline GdkDisplay *
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_gtk_widget_get_display (GtkWidget *widget)
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{
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GtkWidget *toplevel = _gtk_widget_get_toplevel (widget);
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if (_gtk_widget_is_toplevel (toplevel))
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{
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if (GTK_IS_WINDOW (toplevel))
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return gtk_window_get_display (GTK_WINDOW (toplevel));
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else if (GTK_IS_INVISIBLE (toplevel))
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return gtk_invisible_get_display (GTK_INVISIBLE (widget));
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}
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return gdk_display_get_default ();
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}
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static inline GtkStyleContext *
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_gtk_widget_get_style_context (GtkWidget *widget)
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{
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if (G_LIKELY (widget->priv->context))
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return widget->priv->context;
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return gtk_widget_get_style_context (widget);
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}
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static inline gpointer
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_gtk_widget_peek_request_cache (GtkWidget *widget)
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{
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return &widget->priv->requests;
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}
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static inline GdkSurface *
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_gtk_widget_get_surface (GtkWidget *widget)
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{
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return widget->priv->surface;
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}
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static inline void
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_gtk_widget_get_allocation (GtkWidget *widget,
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GtkAllocation *allocation)
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{
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*allocation = widget->priv->allocation;
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}
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static inline GtkWidget *
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_gtk_widget_get_prev_sibling (GtkWidget *widget)
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{
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return widget->priv->prev_sibling;
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}
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static inline GtkWidget *
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_gtk_widget_get_next_sibling (GtkWidget *widget)
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{
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return widget->priv->next_sibling;
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}
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static inline GtkWidget *
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_gtk_widget_get_first_child (GtkWidget *widget)
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{
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return widget->priv->first_child;
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}
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static inline GtkWidget *
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_gtk_widget_get_last_child (GtkWidget *widget)
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{
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return widget->priv->last_child;
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}
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G_END_DECLS
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#endif /* __GTK_WIDGET_PRIVATE_H__ */
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