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gtk2/gtk/gtkwidget.h
Tristan Van Berkom fc5cabba90 Added minimum size parameter to GtkWidgetClass->adjust_size_allocation. 
This allows us to add a check before executing
->get_preferred_height_for_width() to ensure we always
request for at least the minimum required size (and lets
us remove the warning in gtkcontainer.c telling implementors
to do this check manually from thier container implementations).
2010-12-07 23:47:40 +09:00

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/* GTK - The GIMP Toolkit
* 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 Lesser 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser 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 1997-2000. 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/.
*/
#if !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)
#error "Only <gtk/gtk.h> can be included directly."
#endif
#ifndef __GTK_WIDGET_H__
#define __GTK_WIDGET_H__
#include <gdk/gdk.h>
#include <gtk/gtkaccelgroup.h>
#include <gtk/gtkadjustment.h>
#include <gtk/gtkstyle.h>
#include <gtk/gtkborder.h>
#include <gtk/gtksettings.h>
#include <gtk/gtkstylecontext.h>
#include <gtk/gtkwidgetpath.h>
#include <atk/atk.h>
G_BEGIN_DECLS
/* Kinds of widget-specific help */
typedef enum
{
GTK_WIDGET_HELP_TOOLTIP,
GTK_WIDGET_HELP_WHATS_THIS
} GtkWidgetHelpType;
/* Macro for casting a pointer to a GtkWidget or GtkWidgetClass pointer.
* Macros for testing whether `widget' or `klass' are of type GTK_TYPE_WIDGET.
*/
#define GTK_TYPE_WIDGET (gtk_widget_get_type ())
#define GTK_WIDGET(widget) (G_TYPE_CHECK_INSTANCE_CAST ((widget), GTK_TYPE_WIDGET, GtkWidget))
#define GTK_WIDGET_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_WIDGET, GtkWidgetClass))
#define GTK_IS_WIDGET(widget) (G_TYPE_CHECK_INSTANCE_TYPE ((widget), GTK_TYPE_WIDGET))
#define GTK_IS_WIDGET_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_WIDGET))
#define GTK_WIDGET_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_WIDGET, GtkWidgetClass))
#define GTK_TYPE_REQUISITION (gtk_requisition_get_type ())
/* forward declaration to avoid excessive includes (and concurrent includes)
*/
typedef struct _GtkRequisition GtkRequisition;
typedef struct _GtkSelectionData GtkSelectionData;
typedef struct _GtkWidgetPrivate GtkWidgetPrivate;
typedef struct _GtkWidgetClass GtkWidgetClass;
typedef struct _GtkWidgetAuxInfo GtkWidgetAuxInfo;
typedef struct _GtkClipboard GtkClipboard;
typedef struct _GtkTooltip GtkTooltip;
typedef struct _GtkWindow GtkWindow;
/**
* GtkAllocation:
* @x: the X position of the widget's area relative to its parents allocation.
* @y: the Y position of the widget's area relative to its parents allocation.
* @width: the width of the widget's allocated area.
* @height: the height of the widget's allocated area.
*
* A <structname>GtkAllocation</structname> of a widget represents region
* which has been allocated to the widget by its parent. It is a subregion
* of its parents allocation. See <xref linkend="geometry-management"/> for
* more information.
*/
typedef GdkRectangle GtkAllocation;
/**
* GtkCallback:
* @widget: the widget to operate on
* @data: user-supplied data
*
* The type of the callback functions used for e.g. iterating over
* the children of a container, see gtk_container_foreach().
*/
typedef void (*GtkCallback) (GtkWidget *widget,
gpointer data);
/**
* GtkRequisition:
* @width: the widget's desired width
* @height: the widget's desired height
*
* A <structname>GtkRequisition</structname> represents the desired size of a widget. See
* <xref linkend="geometry-management"/> for more information.
*/
struct _GtkRequisition
{
gint width;
gint height;
};
/* The widget is the base of the tree for displayable objects.
* (A displayable object is one which takes up some amount
* of screen real estate). It provides a common base and interface
* which actual widgets must adhere to.
*/
struct _GtkWidget
{
GInitiallyUnowned parent_instance;
GtkWidgetPrivate *priv;
};
/**
* GtkWidgetClass:
* @parent_class: The object class structure needs to be the first
* element in the widget class structure in order for the class mechanism
* to work correctly. This allows a GtkWidgetClass pointer to be cast to
* a GObjectClass pointer.
* @activate_signal: The signal to emit when a widget of this class is
* activated, gtk_widget_activate() handles the emission.
* Implementation of this signal is optional.
* @get_request_mode: This allows a widget to tell its parent container whether
* it prefers to be allocated in %GTK_SIZE_REQUEST_HEIGHT_FOR_WIDTH or
* %GTK_SIZE_REQUEST_WIDTH_FOR_HEIGHT mode.
* %GTK_SIZE_REQUEST_HEIGHT_FOR_WIDTH means the widget prefers to have
* #GtkWidgetClass.get_preferred_width() called and then
* #GtkWidgetClass.get_preferred_height_for_width() and is the default
* return for unimplemented cases.
* However it's important to note (as described below) that any widget
* which trades height-for-width must respond properly to both
* #GtkSizeRequestModes since it might be queried in either orientation
* by its parent container.
* @get_preferred_height: This is called by containers to obtain the minimum
* and natural height of a widget. A widget that does not actually trade
* any height for width or width for height only has to implement these
* two virtual methods (#GtkWidgetClass.get_preferred_width() and
* #GtkWidgetClass.get_preferred_height()).
* @get_preferred_width_for_height: This is analogous to
* #GtkWidgetClass.get_preferred_height_for_width() except that it
* operates in the oposite orientation. It's rare that a widget actually
* does %GTK_SIZE_REQUEST_WIDTH_FOR_HEIGHT requests but this can happen
* when, for example, a widget or container gets additional columns to
* compensate for a smaller allocated height.
* @get_preferred_width: This is called by containers to obtain the minimum
* and natural width of a widget. A widget will never be allocated a width
* less than its minimum and will only ever be allocated a width greater
* than the natural width once all of the said widget's siblings have
* received their natural widths.
* Furthermore, a widget will only ever be allocated a width greater than
* its natural width if it was configured to receive extra expand space
* from its parent container.
* @get_preferred_height_for_width: This is similar to
* #GtkWidgetClass.get_preferred_height() except that it is passed a
* contextual width to request height for. By implementing this virtual
* method it is possible for a #GtkLabel to tell its parent how much height
* would be required if the label were to be allocated a said width.
* @adjust_size_request: Convert an initial size request from a widget's
* #GtkSizeRequest virtual method implementations into a size request to
* be used by parent containers in laying out the widget.
* adjust_size_request adjusts <emphasis>from</emphasis> a child widget's
* original request <emphasis>to</emphasis> what a parent container should
* use for layout. The @for_size argument will be -1 if the request should
* not be for a particular size in the opposing orientation, i.e. if the
* request is not height-for-width or width-for-height. If @for_size is
* greater than -1, it is the proposed allocation in the opposing
* orientation that we need the request for. Implementations of
* adjust_size_request should chain up to the default implementation,
* which applies #GtkWidget's margin properties and imposes any values
* from gtk_widget_set_size_request(). Chaining up should be last,
* <emphasis>after</emphasis> your subclass adjusts the request, so
* #GtkWidget can apply constraints and add the margin properly.
* @adjust_size_allocation: Convert an initial size allocation assigned
* by a #GtkContainer using gtk_widget_size_allocate(), into an actual
* size allocation to be used by the widget. adjust_size_allocation
* adjusts <emphasis>to</emphasis> a child widget's actual allocation
* <emphasis>from</emphasis> what a parent container computed for the
* child. The adjusted allocation must be entirely within the original
* allocation. In any custom implementation, chain up to the default
* #GtkWidget implementation of this method, which applies the margin
* and alignment properties of #GtkWidget. Chain up
* <emphasis>before</emphasis> performing your own adjustments so your
* own adjustments remove more allocation after the #GtkWidget base
* class has already removed margin and alignment. The natural size
* passed in should be adjusted in the same way as the allocated size,
* which allows adjustments to perform alignments or other changes
* based on natural size.
*/
struct _GtkWidgetClass
{
GInitiallyUnownedClass parent_class;
/*< public >*/
guint activate_signal;
/* seldomly overidden */
void (*dispatch_child_properties_changed) (GtkWidget *widget,
guint n_pspecs,
GParamSpec **pspecs);
/* basics */
void (* destroy) (GtkWidget *widget);
void (* show) (GtkWidget *widget);
void (* show_all) (GtkWidget *widget);
void (* hide) (GtkWidget *widget);
void (* map) (GtkWidget *widget);
void (* unmap) (GtkWidget *widget);
void (* realize) (GtkWidget *widget);
void (* unrealize) (GtkWidget *widget);
void (* size_allocate) (GtkWidget *widget,
GtkAllocation *allocation);
void (* state_changed) (GtkWidget *widget,
GtkStateType previous_state);
void (* state_flags_changed) (GtkWidget *widget,
GtkStateFlags previous_state_flags);
void (* parent_set) (GtkWidget *widget,
GtkWidget *previous_parent);
void (* hierarchy_changed) (GtkWidget *widget,
GtkWidget *previous_toplevel);
void (* style_set) (GtkWidget *widget,
GtkStyle *previous_style);
void (* direction_changed) (GtkWidget *widget,
GtkTextDirection previous_direction);
void (* grab_notify) (GtkWidget *widget,
gboolean was_grabbed);
void (* child_notify) (GtkWidget *widget,
GParamSpec *pspec);
gboolean (* draw) (GtkWidget *widget,
cairo_t *cr);
/* size requests */
GtkSizeRequestMode (* get_request_mode) (GtkWidget *widget);
void (* get_preferred_height) (GtkWidget *widget,
gint *minimum_height,
gint *natural_height);
void (* get_preferred_width_for_height) (GtkWidget *widget,
gint height,
gint *minimum_width,
gint *natural_width);
void (* get_preferred_width) (GtkWidget *widget,
gint *minimum_width,
gint *natural_width);
void (* get_preferred_height_for_width) (GtkWidget *widget,
gint width,
gint *minimum_height,
gint *natural_height);
/* Mnemonics */
gboolean (* mnemonic_activate) (GtkWidget *widget,
gboolean group_cycling);
/* explicit focus */
void (* grab_focus) (GtkWidget *widget);
gboolean (* focus) (GtkWidget *widget,
GtkDirectionType direction);
/* keyboard navigation */
void (* move_focus) (GtkWidget *widget,
GtkDirectionType direction);
gboolean (* keynav_failed) (GtkWidget *widget,
GtkDirectionType direction);
/* events */
gboolean (* event) (GtkWidget *widget,
GdkEvent *event);
gboolean (* button_press_event) (GtkWidget *widget,
GdkEventButton *event);
gboolean (* button_release_event) (GtkWidget *widget,
GdkEventButton *event);
gboolean (* scroll_event) (GtkWidget *widget,
GdkEventScroll *event);
gboolean (* motion_notify_event) (GtkWidget *widget,
GdkEventMotion *event);
gboolean (* delete_event) (GtkWidget *widget,
GdkEventAny *event);
gboolean (* destroy_event) (GtkWidget *widget,
GdkEventAny *event);
gboolean (* key_press_event) (GtkWidget *widget,
GdkEventKey *event);
gboolean (* key_release_event) (GtkWidget *widget,
GdkEventKey *event);
gboolean (* enter_notify_event) (GtkWidget *widget,
GdkEventCrossing *event);
gboolean (* leave_notify_event) (GtkWidget *widget,
GdkEventCrossing *event);
gboolean (* configure_event) (GtkWidget *widget,
GdkEventConfigure *event);
gboolean (* focus_in_event) (GtkWidget *widget,
GdkEventFocus *event);
gboolean (* focus_out_event) (GtkWidget *widget,
GdkEventFocus *event);
gboolean (* map_event) (GtkWidget *widget,
GdkEventAny *event);
gboolean (* unmap_event) (GtkWidget *widget,
GdkEventAny *event);
gboolean (* property_notify_event) (GtkWidget *widget,
GdkEventProperty *event);
gboolean (* selection_clear_event) (GtkWidget *widget,
GdkEventSelection *event);
gboolean (* selection_request_event) (GtkWidget *widget,
GdkEventSelection *event);
gboolean (* selection_notify_event) (GtkWidget *widget,
GdkEventSelection *event);
gboolean (* proximity_in_event) (GtkWidget *widget,
GdkEventProximity *event);
gboolean (* proximity_out_event) (GtkWidget *widget,
GdkEventProximity *event);
gboolean (* visibility_notify_event) (GtkWidget *widget,
GdkEventVisibility *event);
gboolean (* client_event) (GtkWidget *widget,
GdkEventClient *event);
gboolean (* window_state_event) (GtkWidget *widget,
GdkEventWindowState *event);
gboolean (* damage_event) (GtkWidget *widget,
GdkEventExpose *event);
gboolean (* grab_broken_event) (GtkWidget *widget,
GdkEventGrabBroken *event);
/* selection */
void (* selection_get) (GtkWidget *widget,
GtkSelectionData *selection_data,
guint info,
guint time_);
void (* selection_received) (GtkWidget *widget,
GtkSelectionData *selection_data,
guint time_);
/* Source side drag signals */
void (* drag_begin) (GtkWidget *widget,
GdkDragContext *context);
void (* drag_end) (GtkWidget *widget,
GdkDragContext *context);
void (* drag_data_get) (GtkWidget *widget,
GdkDragContext *context,
GtkSelectionData *selection_data,
guint info,
guint time_);
void (* drag_data_delete) (GtkWidget *widget,
GdkDragContext *context);
/* Target side drag signals */
void (* drag_leave) (GtkWidget *widget,
GdkDragContext *context,
guint time_);
gboolean (* drag_motion) (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time_);
gboolean (* drag_drop) (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time_);
void (* drag_data_received) (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
GtkSelectionData *selection_data,
guint info,
guint time_);
/* Signals used only for keybindings */
gboolean (* popup_menu) (GtkWidget *widget);
/* If a widget has multiple tooltips/whatsthis, it should show the
* one for the current focus location, or if that doesn't make
* sense, should cycle through them showing each tip alongside
* whatever piece of the widget it applies to.
*/
gboolean (* show_help) (GtkWidget *widget,
GtkWidgetHelpType help_type);
/* accessibility support
*/
AtkObject * (* get_accessible) (GtkWidget *widget);
void (* screen_changed) (GtkWidget *widget,
GdkScreen *previous_screen);
gboolean (* can_activate_accel) (GtkWidget *widget,
guint signal_id);
void (* composited_changed) (GtkWidget *widget);
gboolean (* query_tooltip) (GtkWidget *widget,
gint x,
gint y,
gboolean keyboard_tooltip,
GtkTooltip *tooltip);
void (* compute_expand) (GtkWidget *widget,
gboolean *hexpand_p,
gboolean *vexpand_p);
void (* adjust_size_request) (GtkWidget *widget,
GtkOrientation orientation,
gint *minimum_size,
gint *natural_size);
void (* adjust_size_allocation) (GtkWidget *widget,
GtkOrientation orientation,
gint *minimum_size,
gint *natural_size,
gint *allocated_pos,
gint *allocated_size);
void (* style_updated) (GtkWidget *widget);
/*< private >*/
/* Padding for future expansion */
void (*_gtk_reserved1) (void);
void (*_gtk_reserved2) (void);
void (*_gtk_reserved3) (void);
void (*_gtk_reserved4) (void);
void (*_gtk_reserved5) (void);
void (*_gtk_reserved6) (void);
void (*_gtk_reserved7) (void);
void (*_gtk_reserved8) (void);
};
struct _GtkWidgetAuxInfo
{
gint width;
gint height;
guint halign : 4;
guint valign : 4;
GtkBorder margin;
};
GType gtk_widget_get_type (void) G_GNUC_CONST;
GtkWidget* gtk_widget_new (GType type,
const gchar *first_property_name,
...);
void gtk_widget_destroy (GtkWidget *widget);
void gtk_widget_destroyed (GtkWidget *widget,
GtkWidget **widget_pointer);
void gtk_widget_unparent (GtkWidget *widget);
void gtk_widget_show (GtkWidget *widget);
void gtk_widget_hide (GtkWidget *widget);
void gtk_widget_show_now (GtkWidget *widget);
void gtk_widget_show_all (GtkWidget *widget);
void gtk_widget_set_no_show_all (GtkWidget *widget,
gboolean no_show_all);
gboolean gtk_widget_get_no_show_all (GtkWidget *widget);
void gtk_widget_map (GtkWidget *widget);
void gtk_widget_unmap (GtkWidget *widget);
void gtk_widget_realize (GtkWidget *widget);
void gtk_widget_unrealize (GtkWidget *widget);
void gtk_widget_draw (GtkWidget *widget,
cairo_t *cr);
/* Queuing draws */
void gtk_widget_queue_draw (GtkWidget *widget);
void gtk_widget_queue_draw_area (GtkWidget *widget,
gint x,
gint y,
gint width,
gint height);
void gtk_widget_queue_draw_region (GtkWidget *widget,
cairo_region_t *region);
void gtk_widget_queue_resize (GtkWidget *widget);
void gtk_widget_queue_resize_no_redraw (GtkWidget *widget);
#ifndef GTK_DISABLE_DEPRECATED
void gtk_widget_size_request (GtkWidget *widget,
GtkRequisition *requisition);
#endif
void gtk_widget_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
GtkSizeRequestMode gtk_widget_get_request_mode (GtkWidget *widget);
void gtk_widget_get_preferred_width (GtkWidget *widget,
gint *minimum_width,
gint *natural_width);
void gtk_widget_get_preferred_height_for_width (GtkWidget *widget,
gint width,
gint *minimum_height,
gint *natural_height);
void gtk_widget_get_preferred_height (GtkWidget *widget,
gint *minimum_height,
gint *natural_height);
void gtk_widget_get_preferred_width_for_height (GtkWidget *widget,
gint height,
gint *minimum_width,
gint *natural_width);
void gtk_widget_get_preferred_size (GtkWidget *widget,
GtkRequisition *minimum_size,
GtkRequisition *natural_size);
#ifndef GTK_DISABLE_DEPRECATED
void gtk_widget_get_child_requisition (GtkWidget *widget,
GtkRequisition *requisition);
#endif
void gtk_widget_add_accelerator (GtkWidget *widget,
const gchar *accel_signal,
GtkAccelGroup *accel_group,
guint accel_key,
GdkModifierType accel_mods,
GtkAccelFlags accel_flags);
gboolean gtk_widget_remove_accelerator (GtkWidget *widget,
GtkAccelGroup *accel_group,
guint accel_key,
GdkModifierType accel_mods);
void gtk_widget_set_accel_path (GtkWidget *widget,
const gchar *accel_path,
GtkAccelGroup *accel_group);
const gchar* _gtk_widget_get_accel_path (GtkWidget *widget,
gboolean *locked);
GList* gtk_widget_list_accel_closures (GtkWidget *widget);
gboolean gtk_widget_can_activate_accel (GtkWidget *widget,
guint signal_id);
gboolean gtk_widget_mnemonic_activate (GtkWidget *widget,
gboolean group_cycling);
gboolean gtk_widget_event (GtkWidget *widget,
GdkEvent *event);
gint gtk_widget_send_expose (GtkWidget *widget,
GdkEvent *event);
gboolean gtk_widget_send_focus_change (GtkWidget *widget,
GdkEvent *event);
gboolean gtk_widget_activate (GtkWidget *widget);
void gtk_widget_reparent (GtkWidget *widget,
GtkWidget *new_parent);
gboolean gtk_widget_intersect (GtkWidget *widget,
const GdkRectangle *area,
GdkRectangle *intersection);
cairo_region_t *gtk_widget_region_intersect (GtkWidget *widget,
const cairo_region_t *region);
void gtk_widget_freeze_child_notify (GtkWidget *widget);
void gtk_widget_child_notify (GtkWidget *widget,
const gchar *child_property);
void gtk_widget_thaw_child_notify (GtkWidget *widget);
void gtk_widget_set_can_focus (GtkWidget *widget,
gboolean can_focus);
gboolean gtk_widget_get_can_focus (GtkWidget *widget);
gboolean gtk_widget_has_focus (GtkWidget *widget);
gboolean gtk_widget_is_focus (GtkWidget *widget);
void gtk_widget_grab_focus (GtkWidget *widget);
void gtk_widget_set_can_default (GtkWidget *widget,
gboolean can_default);
gboolean gtk_widget_get_can_default (GtkWidget *widget);
gboolean gtk_widget_has_default (GtkWidget *widget);
void gtk_widget_grab_default (GtkWidget *widget);
void gtk_widget_set_receives_default (GtkWidget *widget,
gboolean receives_default);
gboolean gtk_widget_get_receives_default (GtkWidget *widget);
gboolean gtk_widget_has_grab (GtkWidget *widget);
gboolean gtk_widget_device_is_shadowed (GtkWidget *widget,
GdkDevice *device);
void gtk_widget_set_name (GtkWidget *widget,
const gchar *name);
G_CONST_RETURN gchar* gtk_widget_get_name (GtkWidget *widget);
void gtk_widget_set_state (GtkWidget *widget,
GtkStateType state);
GtkStateType gtk_widget_get_state (GtkWidget *widget);
void gtk_widget_set_state_flags (GtkWidget *widget,
GtkStateFlags flags,
gboolean clear);
void gtk_widget_unset_state_flags (GtkWidget *widget,
GtkStateFlags flags);
GtkStateFlags gtk_widget_get_state_flags (GtkWidget *widget);
void gtk_widget_set_sensitive (GtkWidget *widget,
gboolean sensitive);
gboolean gtk_widget_get_sensitive (GtkWidget *widget);
gboolean gtk_widget_is_sensitive (GtkWidget *widget);
void gtk_widget_set_visible (GtkWidget *widget,
gboolean visible);
gboolean gtk_widget_get_visible (GtkWidget *widget);
void gtk_widget_set_has_window (GtkWidget *widget,
gboolean has_window);
gboolean gtk_widget_get_has_window (GtkWidget *widget);
gboolean gtk_widget_is_toplevel (GtkWidget *widget);
gboolean gtk_widget_is_drawable (GtkWidget *widget);
void gtk_widget_set_realized (GtkWidget *widget,
gboolean realized);
gboolean gtk_widget_get_realized (GtkWidget *widget);
void gtk_widget_set_mapped (GtkWidget *widget,
gboolean mapped);
gboolean gtk_widget_get_mapped (GtkWidget *widget);
void gtk_widget_set_app_paintable (GtkWidget *widget,
gboolean app_paintable);
gboolean gtk_widget_get_app_paintable (GtkWidget *widget);
void gtk_widget_set_double_buffered (GtkWidget *widget,
gboolean double_buffered);
gboolean gtk_widget_get_double_buffered (GtkWidget *widget);
void gtk_widget_set_redraw_on_allocate (GtkWidget *widget,
gboolean redraw_on_allocate);
void gtk_widget_set_parent (GtkWidget *widget,
GtkWidget *parent);
GtkWidget * gtk_widget_get_parent (GtkWidget *widget);
void gtk_widget_set_parent_window (GtkWidget *widget,
GdkWindow *parent_window);
GdkWindow * gtk_widget_get_parent_window (GtkWidget *widget);
void gtk_widget_set_child_visible (GtkWidget *widget,
gboolean is_visible);
gboolean gtk_widget_get_child_visible (GtkWidget *widget);
void gtk_widget_set_window (GtkWidget *widget,
GdkWindow *window);
GdkWindow * gtk_widget_get_window (GtkWidget *widget);
int gtk_widget_get_allocated_width (GtkWidget *widget);
int gtk_widget_get_allocated_height (GtkWidget *widget);
void gtk_widget_get_allocation (GtkWidget *widget,
GtkAllocation *allocation);
void gtk_widget_set_allocation (GtkWidget *widget,
const GtkAllocation *allocation);
void gtk_widget_get_requisition (GtkWidget *widget,
GtkRequisition *requisition);
gboolean gtk_widget_child_focus (GtkWidget *widget,
GtkDirectionType direction);
gboolean gtk_widget_keynav_failed (GtkWidget *widget,
GtkDirectionType direction);
void gtk_widget_error_bell (GtkWidget *widget);
void gtk_widget_set_size_request (GtkWidget *widget,
gint width,
gint height);
void gtk_widget_get_size_request (GtkWidget *widget,
gint *width,
gint *height);
void gtk_widget_set_events (GtkWidget *widget,
gint events);
void gtk_widget_add_events (GtkWidget *widget,
gint events);
void gtk_widget_set_device_events (GtkWidget *widget,
GdkDevice *device,
GdkEventMask events);
void gtk_widget_add_device_events (GtkWidget *widget,
GdkDevice *device,
GdkEventMask events);
void gtk_widget_set_extension_events (GtkWidget *widget,
GdkExtensionMode mode);
GdkExtensionMode gtk_widget_get_extension_events (GtkWidget *widget);
GtkWidget* gtk_widget_get_toplevel (GtkWidget *widget);
GtkWidget* gtk_widget_get_ancestor (GtkWidget *widget,
GType widget_type);
GdkVisual* gtk_widget_get_visual (GtkWidget *widget);
void gtk_widget_set_visual (GtkWidget *widget,
GdkVisual *visual);
GdkScreen * gtk_widget_get_screen (GtkWidget *widget);
gboolean gtk_widget_has_screen (GtkWidget *widget);
GdkDisplay * gtk_widget_get_display (GtkWidget *widget);
GdkWindow * gtk_widget_get_root_window (GtkWidget *widget);
GtkSettings* gtk_widget_get_settings (GtkWidget *widget);
GtkClipboard *gtk_widget_get_clipboard (GtkWidget *widget,
GdkAtom selection);
/* Expand flags and related support */
gboolean gtk_widget_get_hexpand (GtkWidget *widget);
void gtk_widget_set_hexpand (GtkWidget *widget,
gboolean expand);
gboolean gtk_widget_get_hexpand_set (GtkWidget *widget);
void gtk_widget_set_hexpand_set (GtkWidget *widget,
gboolean set);
gboolean gtk_widget_get_vexpand (GtkWidget *widget);
void gtk_widget_set_vexpand (GtkWidget *widget,
gboolean expand);
gboolean gtk_widget_get_vexpand_set (GtkWidget *widget);
void gtk_widget_set_vexpand_set (GtkWidget *widget,
gboolean set);
void gtk_widget_queue_compute_expand (GtkWidget *widget);
gboolean gtk_widget_compute_expand (GtkWidget *widget,
GtkOrientation orientation);
/* Multidevice support */
gboolean gtk_widget_get_support_multidevice (GtkWidget *widget);
void gtk_widget_set_support_multidevice (GtkWidget *widget,
gboolean support_multidevice);
/* Accessibility support */
AtkObject* gtk_widget_get_accessible (GtkWidget *widget);
/* Margin and alignment */
GtkAlign gtk_widget_get_halign (GtkWidget *widget);
void gtk_widget_set_halign (GtkWidget *widget,
GtkAlign align);
GtkAlign gtk_widget_get_valign (GtkWidget *widget);
void gtk_widget_set_valign (GtkWidget *widget,
GtkAlign align);
gint gtk_widget_get_margin_left (GtkWidget *widget);
void gtk_widget_set_margin_left (GtkWidget *widget,
gint margin);
gint gtk_widget_get_margin_right (GtkWidget *widget);
void gtk_widget_set_margin_right (GtkWidget *widget,
gint margin);
gint gtk_widget_get_margin_top (GtkWidget *widget);
void gtk_widget_set_margin_top (GtkWidget *widget,
gint margin);
gint gtk_widget_get_margin_bottom (GtkWidget *widget);
void gtk_widget_set_margin_bottom (GtkWidget *widget,
gint margin);
gint gtk_widget_get_events (GtkWidget *widget);
GdkEventMask gtk_widget_get_device_events (GtkWidget *widget,
GdkDevice *device);
void gtk_widget_get_pointer (GtkWidget *widget,
gint *x,
gint *y);
gboolean gtk_widget_is_ancestor (GtkWidget *widget,
GtkWidget *ancestor);
gboolean gtk_widget_translate_coordinates (GtkWidget *src_widget,
GtkWidget *dest_widget,
gint src_x,
gint src_y,
gint *dest_x,
gint *dest_y);
/* Hide widget and return TRUE.
*/
gboolean gtk_widget_hide_on_delete (GtkWidget *widget);
/* Functions to override widget styling */
void gtk_widget_override_color (GtkWidget *widget,
GtkStateFlags state,
const GdkRGBA *color);
void gtk_widget_override_background_color (GtkWidget *widget,
GtkStateFlags state,
const GdkRGBA *color);
void gtk_widget_override_font (GtkWidget *widget,
const PangoFontDescription *font_desc);
void gtk_widget_override_symbolic_color (GtkWidget *widget,
const gchar *name,
const GdkRGBA *color);
void gtk_widget_override_cursor (GtkWidget *widget,
const GdkRGBA *cursor,
const GdkRGBA *secondary_cursor);
void gtk_widget_style_attach (GtkWidget *widget);
#if !defined(GTK_DISABLE_DEPRECATED) || defined(GTK_COMPILATION)
/* Widget styles.
*/
gboolean gtk_widget_has_rc_style (GtkWidget *widget);
void gtk_widget_set_style (GtkWidget *widget,
GtkStyle *style);
void gtk_widget_ensure_style (GtkWidget *widget);
GtkStyle * gtk_widget_get_style (GtkWidget *widget);
void gtk_widget_modify_style (GtkWidget *widget,
GtkRcStyle *style);
GtkRcStyle *gtk_widget_get_modifier_style (GtkWidget *widget);
void gtk_widget_modify_fg (GtkWidget *widget,
GtkStateType state,
const GdkColor *color);
void gtk_widget_modify_bg (GtkWidget *widget,
GtkStateType state,
const GdkColor *color);
void gtk_widget_modify_text (GtkWidget *widget,
GtkStateType state,
const GdkColor *color);
void gtk_widget_modify_base (GtkWidget *widget,
GtkStateType state,
const GdkColor *color);
void gtk_widget_modify_cursor (GtkWidget *widget,
const GdkColor *primary,
const GdkColor *secondary);
void gtk_widget_modify_font (GtkWidget *widget,
PangoFontDescription *font_desc);
/* Descend recursively and set rc-style on all widgets without user styles */
void gtk_widget_reset_rc_styles (GtkWidget *widget);
void gtk_widget_reset_style (GtkWidget *widget);
/* Set certain default values to be used at widget creation time */
GtkStyle* gtk_widget_get_default_style (void);
/* Compute a widget's path in the form "GtkWindow.MyLabel", and
* return newly alocated strings.
*/
void gtk_widget_path (GtkWidget *widget,
guint *path_length,
gchar **path,
gchar **path_reversed);
void gtk_widget_class_path (GtkWidget *widget,
guint *path_length,
gchar **path,
gchar **path_reversed);
#endif /* GTK_DISABLE_DEPRECATED */
PangoContext *gtk_widget_create_pango_context (GtkWidget *widget);
PangoContext *gtk_widget_get_pango_context (GtkWidget *widget);
PangoLayout *gtk_widget_create_pango_layout (GtkWidget *widget,
const gchar *text);
GdkPixbuf *gtk_widget_render_icon (GtkWidget *widget,
const gchar *stock_id,
GtkIconSize size,
const gchar *detail);
/* handle composite names for GTK_COMPOSITE_CHILD widgets,
* the returned name is newly allocated.
*/
void gtk_widget_set_composite_name (GtkWidget *widget,
const gchar *name);
gchar* gtk_widget_get_composite_name (GtkWidget *widget);
/* Push/pop pairs, to change default values upon a widget's creation.
* This will override the values that got set by the
* gtk_widget_set_default_* () functions.
*/
void gtk_widget_push_composite_child (void);
void gtk_widget_pop_composite_child (void);
/* widget style properties
*/
void gtk_widget_class_install_style_property (GtkWidgetClass *klass,
GParamSpec *pspec);
void gtk_widget_class_install_style_property_parser (GtkWidgetClass *klass,
GParamSpec *pspec,
GtkRcPropertyParser parser);
GParamSpec* gtk_widget_class_find_style_property (GtkWidgetClass *klass,
const gchar *property_name);
GParamSpec** gtk_widget_class_list_style_properties (GtkWidgetClass *klass,
guint *n_properties);
void gtk_widget_style_get_property (GtkWidget *widget,
const gchar *property_name,
GValue *value);
void gtk_widget_style_get_valist (GtkWidget *widget,
const gchar *first_property_name,
va_list var_args);
void gtk_widget_style_get (GtkWidget *widget,
const gchar *first_property_name,
...) G_GNUC_NULL_TERMINATED;
/* Functions for setting directionality for widgets */
void gtk_widget_set_direction (GtkWidget *widget,
GtkTextDirection dir);
GtkTextDirection gtk_widget_get_direction (GtkWidget *widget);
void gtk_widget_set_default_direction (GtkTextDirection dir);
GtkTextDirection gtk_widget_get_default_direction (void);
/* Compositing manager functionality */
gboolean gtk_widget_is_composited (GtkWidget *widget);
/* Counterpart to gdk_window_shape_combine_region.
*/
void gtk_widget_shape_combine_region (GtkWidget *widget,
cairo_region_t *region);
void gtk_widget_input_shape_combine_region (GtkWidget *widget,
cairo_region_t *region);
/* internal function */
void gtk_widget_reset_shapes (GtkWidget *widget);
GList* gtk_widget_list_mnemonic_labels (GtkWidget *widget);
void gtk_widget_add_mnemonic_label (GtkWidget *widget,
GtkWidget *label);
void gtk_widget_remove_mnemonic_label (GtkWidget *widget,
GtkWidget *label);
void gtk_widget_set_tooltip_window (GtkWidget *widget,
GtkWindow *custom_window);
GtkWindow *gtk_widget_get_tooltip_window (GtkWidget *widget);
void gtk_widget_trigger_tooltip_query (GtkWidget *widget);
void gtk_widget_set_tooltip_text (GtkWidget *widget,
const gchar *text);
gchar * gtk_widget_get_tooltip_text (GtkWidget *widget);
void gtk_widget_set_tooltip_markup (GtkWidget *widget,
const gchar *markup);
gchar * gtk_widget_get_tooltip_markup (GtkWidget *widget);
void gtk_widget_set_has_tooltip (GtkWidget *widget,
gboolean has_tooltip);
gboolean gtk_widget_get_has_tooltip (GtkWidget *widget);
gboolean gtk_cairo_should_draw_window (cairo_t *cr,
GdkWindow *window);
void gtk_cairo_transform_to_window (cairo_t *cr,
GtkWidget *widget,
GdkWindow *window);
GType gtk_requisition_get_type (void) G_GNUC_CONST;
GtkRequisition *gtk_requisition_new (void) G_GNUC_MALLOC;
GtkRequisition *gtk_requisition_copy (const GtkRequisition *requisition);
void gtk_requisition_free (GtkRequisition *requisition);
GdkEventExpose * _gtk_cairo_get_event (cairo_t *cr);
void _gtk_widget_draw_internal (GtkWidget *widget,
cairo_t *cr,
gboolean clip_to_size);
void _gtk_widget_set_has_default (GtkWidget *widget,
gboolean has_default);
void _gtk_widget_set_has_grab (GtkWidget *widget,
gboolean has_grab);
void _gtk_widget_set_is_toplevel (GtkWidget *widget,
gboolean is_toplevel);
void _gtk_widget_grab_notify (GtkWidget *widget,
gboolean was_grabbed);
GtkWidgetAuxInfo *_gtk_widget_get_aux_info (GtkWidget *widget,
gboolean create);
void _gtk_widget_propagate_hierarchy_changed (GtkWidget *widget,
GtkWidget *previous_toplevel);
void _gtk_widget_propagate_screen_changed (GtkWidget *widget,
GdkScreen *previous_screen);
void _gtk_widget_propagate_composited_changed (GtkWidget *widget);
void _gtk_widget_set_device_window (GtkWidget *widget,
GdkDevice *device,
GdkWindow *pointer_window);
GdkWindow *_gtk_widget_get_device_window (GtkWidget *widget,
GdkDevice *device);
GList * _gtk_widget_list_devices (GtkWidget *widget);
void _gtk_widget_synthesize_crossing (GtkWidget *from,
GtkWidget *to,
GdkDevice *device,
GdkCrossingMode mode);
gpointer _gtk_widget_peek_request_cache (GtkWidget *widget);
void _gtk_widget_buildable_finish_accelerator (GtkWidget *widget,
GtkWidget *toplevel,
gpointer user_data);
gboolean gtk_widget_in_destruction (GtkWidget *widget);
GtkStyleContext * gtk_widget_get_style_context (GtkWidget *widget);
GtkWidgetPath * gtk_widget_get_path (GtkWidget *widget);
G_END_DECLS
#endif /* __GTK_WIDGET_H__ */
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