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7108586b16
gtk2/gtk/gtkwidget.h
Benjamin Otte 7108586b16 widget: Add draw signal 
For now, the draw signal is emitted by default from the expose event, so
widgets can chose to either implement the expose event or the draw
function.
This is for the transitional period from expose event to draw signal.

Note that for now subclasses can only implement the draw function when
none of their parents implemented the expose event.
2010-09-26 15:11:34 +02:00

989 lines
43 KiB
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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/gtkobject.h>
#include <gtk/gtkadjustment.h>
#include <gtk/gtkstyle.h>
#include <gtk/gtksettings.h>
#include <atk/atk.h>
G_BEGIN_DECLS
/**
* GtkWidgetFlags:
* @GTK_TOPLEVEL: widgets without a real parent, as there are #GtkWindow<!-- -->s and
* #GtkMenu<!-- -->s have this flag set throughout their lifetime.
* Toplevel widgets always contain their own #GdkWindow.
* @GTK_NO_WINDOW: Indicative for a widget that does not provide its own #GdkWindow.
* Visible action (e.g. drawing) is performed on the parent's #GdkWindow.
* @GTK_REALIZED: Set by gtk_widget_realize(), unset by gtk_widget_unrealize().
* A realized widget has an associated #GdkWindow.
* @GTK_MAPPED: Set by gtk_widget_map(), unset by gtk_widget_unmap().
* Only realized widgets can be mapped. It means that gdk_window_show()
* has been called on the widgets window(s).
* @GTK_VISIBLE: Set by gtk_widget_show(), unset by gtk_widget_hide(). Implies that a
* widget will be mapped as soon as its parent is mapped.
* @GTK_SENSITIVE: Set and unset by gtk_widget_set_sensitive().
* The sensitivity of a widget determines whether it will receive
* certain events (e.g. button or key presses). One premise for
* the widget's sensitivity is to have this flag set.
* @GTK_PARENT_SENSITIVE: Set and unset by gtk_widget_set_sensitive() operations on the
* parents of the widget.
* This is the second premise for the widget's sensitivity. Once
* it has %GTK_SENSITIVE and %GTK_PARENT_SENSITIVE set, its state is
* effectively sensitive. This is expressed (and can be examined) by
* the #GTK_WIDGET_IS_SENSITIVE macro.
* @GTK_CAN_FOCUS: Determines whether a widget is able to handle focus grabs.
* @GTK_HAS_FOCUS: Set by gtk_widget_grab_focus() for widgets that also
* have %GTK_CAN_FOCUS set. The flag will be unset once another widget
* grabs the focus.
* @GTK_CAN_DEFAULT: The widget is allowed to receive the default action via
* gtk_widget_grab_default() and will reserve space to draw the default if possible
* @GTK_HAS_DEFAULT: The widget currently is receiving the default action and
* should be drawn appropriately if possible
* @GTK_HAS_GRAB: Set by gtk_grab_add(), unset by gtk_grab_remove(). It means that the
* widget is in the grab_widgets stack, and will be the preferred one for
* receiving events other than ones of cosmetic value.
* @GTK_RC_STYLE: Indicates that the widget's style has been looked up through the rc
* mechanism. It does not imply that the widget actually had a style
* defined through the rc mechanism.
* @GTK_COMPOSITE_CHILD: Indicates that the widget is a composite child of its parent; see
* gtk_widget_push_composite_child(), gtk_widget_pop_composite_child().
* @GTK_APP_PAINTABLE: Set and unset by gtk_widget_set_app_paintable().
* Must be set on widgets whose window the application directly draws on,
* in order to keep GTK+ from overwriting the drawn stuff. See
* <xref linkend="app-paintable-widgets"/> for a detailed
* description of this flag.
* @GTK_RECEIVES_DEFAULT: The widget when focused will receive the default action and have
* %GTK_HAS_DEFAULT set even if there is a different widget set as default.
* @GTK_DOUBLE_BUFFERED: Set and unset by gtk_widget_set_double_buffered().
* Indicates that exposes done on the widget should be
* double-buffered. See <xref linkend="double-buffering"/> for a
* detailed discussion of how double-buffering works in GTK+ and
* why you may want to disable it for special cases.
* @GTK_NO_SHOW_ALL:
*
* Tells about certain properties of the widget.
*/
typedef enum
{
GTK_TOPLEVEL = 1 << 4,
GTK_NO_WINDOW = 1 << 5,
GTK_REALIZED = 1 << 6,
GTK_MAPPED = 1 << 7,
GTK_VISIBLE = 1 << 8,
GTK_SENSITIVE = 1 << 9,
GTK_PARENT_SENSITIVE = 1 << 10,
GTK_CAN_FOCUS = 1 << 11,
GTK_HAS_FOCUS = 1 << 12,
GTK_CAN_DEFAULT = 1 << 13,
GTK_HAS_DEFAULT = 1 << 14,
GTK_HAS_GRAB = 1 << 15,
GTK_RC_STYLE = 1 << 16,
GTK_COMPOSITE_CHILD = 1 << 17,
GTK_APP_PAINTABLE = 1 << 18,
GTK_RECEIVES_DEFAULT = 1 << 19,
GTK_DOUBLE_BUFFERED = 1 << 20,
GTK_NO_SHOW_ALL = 1 << 21,
GTK_MULTIDEVICE = 1 << 22
} GtkWidgetFlags;
/* 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))
/* Macros for extracting the widget flags from GtkWidget.
*/
/**
* GTK_WIDGET_FLAGS:
* @wid: a #GtkWidget.
*
* Returns the widget flags from @wid.
*
* Deprecated: 2.20: Use the proper function to test individual states:
* gtk_widget_get_app_paintable(), gtk_widget_get_can_default(),
* gtk_widget_get_can_focus(), gtk_widget_get_double_buffered(),
* gtk_widget_has_default(), gtk_widget_is_drawable(),
* gtk_widget_has_focus(), gtk_widget_has_grab(), gtk_widget_get_mapped(),
* gtk_widget_get_has_window(), gtk_widget_has_rc_style(),
* gtk_widget_get_realized(), gtk_widget_get_receives_default(),
* gtk_widget_get_sensitive(), gtk_widget_is_sensitive(),
* gtk_widget_is_toplevel() or gtk_widget_get_visible().
*/
#define GTK_WIDGET_FLAGS(wid) (GTK_OBJECT_FLAGS (wid))
/* FIXME: Deprecating GTK_WIDGET_FLAGS requires fixing GTK internals. */
/* Macros for setting and clearing widget flags.
*/
/**
* GTK_WIDGET_SET_FLAGS:
* @wid: a #GtkWidget.
* @flag: the flags to set.
*
* Turns on certain widget flags.
*
* Deprecated: 2.22: Use the proper function instead: gtk_widget_set_app_paintable(),
* gtk_widget_set_can_default(), gtk_widget_set_can_focus(),
* gtk_widget_set_double_buffered(), gtk_widget_set_has_window(),
* gtk_widget_set_mapped(), gtk_widget_set_no_show_all(),
* gtk_widget_set_realized(), gtk_widget_set_receives_default(),
* gtk_widget_set_sensitive() or gtk_widget_set_visible().
*
*/
#define GTK_WIDGET_SET_FLAGS(wid,flag) G_STMT_START{ (GTK_WIDGET_FLAGS (wid) |= (flag)); }G_STMT_END
/* FIXME: Deprecating GTK_WIDGET_SET_FLAGS requires fixing GTK internals. */
/**
* GTK_WIDGET_UNSET_FLAGS:
* @wid: a #GtkWidget.
* @flag: the flags to unset.
*
* Turns off certain widget flags.
*
* Deprecated: 2.22: Use the proper function instead. See GTK_WIDGET_SET_FLAGS().
*/
#define GTK_WIDGET_UNSET_FLAGS(wid,flag) G_STMT_START{ (GTK_WIDGET_FLAGS (wid) &= ~(flag)); }G_STMT_END
/* FIXME: Deprecating GTK_WIDGET_UNSET_FLAGS requires fixing GTK internals. */
#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="size-allocation"/> 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="size-requisition"/> 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
{
/* The object structure needs to be the first
* element in the widget structure in order for
* the object mechanism to work correctly. This
* allows a GtkWidget pointer to be cast to a
* GtkObject pointer.
*/
GtkObject object;
/* internally used private flags. */
guint GSEAL (private_flags) : 16;
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 GtkObjectClass 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.
* @set_scroll_adjustments_signal: This signal is emitted when a widget of
* this class is added to a scrolling aware parent,
* gtk_widget_set_scroll_adjustments() handles the emission.
* Implementation of this signal is optional.
* @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.
*/
struct _GtkWidgetClass
{
GtkObjectClass parent_class;
/*< public >*/
guint activate_signal;
guint set_scroll_adjustments_signal;
/*< private >*/
/* seldomly overidden */
void (*dispatch_child_properties_changed) (GtkWidget *widget,
guint n_pspecs,
GParamSpec **pspecs);
/* basics */
void (* show) (GtkWidget *widget);
void (* show_all) (GtkWidget *widget);
void (* hide) (GtkWidget *widget);
void (* hide_all) (GtkWidget *widget);
void (* map) (GtkWidget *widget);
void (* unmap) (GtkWidget *widget);
void (* realize) (GtkWidget *widget);
void (* unrealize) (GtkWidget *widget);
void (* size_request) (GtkWidget *widget,
GtkRequisition *requisition);
void (* size_allocate) (GtkWidget *widget,
GtkAllocation *allocation);
void (* state_changed) (GtkWidget *widget,
GtkStateType previous_state);
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);
/* Mnemonics */
gboolean (* mnemonic_activate) (GtkWidget *widget,
gboolean group_cycling);
/* explicit focus */
void (* grab_focus) (GtkWidget *widget);
gboolean (* focus) (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 (* expose_event) (GtkWidget *widget,
GdkEventExpose *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 (* no_expose_event) (GtkWidget *widget,
GdkEventAny *event);
gboolean (* window_state_event) (GtkWidget *widget,
GdkEventWindowState *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);
/* Sent when a grab is broken. */
gboolean (*grab_broken_event) (GtkWidget *widget,
GdkEventGrabBroken *event);
void (* composited_changed) (GtkWidget *widget);
gboolean (* query_tooltip) (GtkWidget *widget,
gint x,
gint y,
gboolean keyboard_tooltip,
GtkTooltip *tooltip);
/*< public >*/
void (* adjust_size_request) (GtkWidget *widget,
GtkOrientation orientation,
gint for_size,
gint *minimum_size,
gint *natural_size);
void (* adjust_size_allocation) (GtkWidget *widget,
GtkAllocation *allocation);
/*< private >*/
/* Signals without a C default handler class slot:
* gboolean (*damage_event) (GtkWidget *widget,
* GdkEventExpose *event);
*/
/* 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_show_now (GtkWidget *widget);
void gtk_widget_hide (GtkWidget *widget);
void gtk_widget_show_all (GtkWidget *widget);
void gtk_widget_hide_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);
/* 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_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);
#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);
gboolean gtk_widget_set_scroll_adjustments (GtkWidget *widget,
GtkAdjustment *hadjustment,
GtkAdjustment *vadjustment);
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_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);
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);
/* 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);
/* Widget styles.
*/
void gtk_widget_style_attach (GtkWidget *widget);
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);
void gtk_widget_modify_symbolic_color (GtkWidget *widget,
const gchar *name,
const GdkColor *color);
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);
/* Descend recursively and set rc-style on all widgets without user styles */
void gtk_widget_reset_rc_styles (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;
/* Set certain default values to be used at widget creation time.
*/
GtkStyle* gtk_widget_get_default_style (void);
/* 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);
/* 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);
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);
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);
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);
G_END_DECLS
#endif /* __GTK_WIDGET_H__ */
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