/* 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 can be included directly." #endif #ifndef __GTK_WIDGET_H__ #define __GTK_WIDGET_H__ #include #include #include #include #include #include #include #include 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 GtkAllocation of a widget represents region * which has been allocated to the widget by its parent. It is a subregion * of its parents allocation. See 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 GtkRequisition represents the desired size of a widget. See * 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 from a child widget's * original request to 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, * after 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 to a child widget's actual allocation * from 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 * before 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 (* 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 *natural_size, gint *allocated_pos, gint *allocated_size); /*< 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_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); /* 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); 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__ */