/* 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/. */ #ifndef __GTK_WIDGET_H__ #define __GTK_WIDGET_H__ #include #include #include #include #include #include #include #ifdef __cplusplus extern "C" { #endif /* __cplusplus */ /* The flags that are used by GtkWidget on top of the * flags field of GtkObject. */ 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, /* widget is allowed to receive the default via gtk_widget_grab_default * and will reserve space to draw the default if possible */ GTK_CAN_DEFAULT = 1 << 13, /* the widget currently is receiving the default action and should be drawn * appropriately if possible */ GTK_HAS_DEFAULT = 1 << 14, GTK_HAS_GRAB = 1 << 15, GTK_RC_STYLE = 1 << 16, GTK_COMPOSITE_CHILD = 1 << 17, GTK_NO_REPARENT = 1 << 18, GTK_APP_PAINTABLE = 1 << 19, /* the widget when focused will receive the default action and have * HAS_DEFAULT set even if there is a different widget set as default */ GTK_RECEIVES_DEFAULT = 1 << 20, GTK_DOUBLE_BUFFERED = 1 << 21 } 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 various fields from GtkWidget and GtkWidgetClass. */ #define GTK_WIDGET_TYPE(wid) (GTK_OBJECT_TYPE (wid)) #define GTK_WIDGET_STATE(wid) (GTK_WIDGET (wid)->state) #define GTK_WIDGET_SAVED_STATE(wid) (GTK_WIDGET (wid)->saved_state) /* Macros for extracting the widget flags from GtkWidget. */ #define GTK_WIDGET_FLAGS(wid) (GTK_OBJECT_FLAGS (wid)) #define GTK_WIDGET_TOPLEVEL(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_TOPLEVEL) != 0) #define GTK_WIDGET_NO_WINDOW(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_NO_WINDOW) != 0) #define GTK_WIDGET_REALIZED(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_REALIZED) != 0) #define GTK_WIDGET_MAPPED(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_MAPPED) != 0) #define GTK_WIDGET_VISIBLE(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_VISIBLE) != 0) #define GTK_WIDGET_DRAWABLE(wid) (GTK_WIDGET_VISIBLE (wid) && GTK_WIDGET_MAPPED (wid)) #define GTK_WIDGET_SENSITIVE(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_SENSITIVE) != 0) #define GTK_WIDGET_PARENT_SENSITIVE(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_PARENT_SENSITIVE) != 0) #define GTK_WIDGET_IS_SENSITIVE(wid) (GTK_WIDGET_SENSITIVE (wid) && \ GTK_WIDGET_PARENT_SENSITIVE (wid)) #define GTK_WIDGET_CAN_FOCUS(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_CAN_FOCUS) != 0) #define GTK_WIDGET_HAS_FOCUS(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_HAS_FOCUS) != 0) #define GTK_WIDGET_CAN_DEFAULT(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_CAN_DEFAULT) != 0) #define GTK_WIDGET_HAS_DEFAULT(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_HAS_DEFAULT) != 0) #define GTK_WIDGET_HAS_GRAB(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_HAS_GRAB) != 0) #define GTK_WIDGET_RC_STYLE(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_RC_STYLE) != 0) #define GTK_WIDGET_COMPOSITE_CHILD(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_COMPOSITE_CHILD) != 0) #define GTK_WIDGET_APP_PAINTABLE(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_APP_PAINTABLE) != 0) #define GTK_WIDGET_RECEIVES_DEFAULT(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_RECEIVES_DEFAULT) != 0) #define GTK_WIDGET_DOUBLE_BUFFERED(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_DOUBLE_BUFFERED) != 0) /* Macros for setting and clearing widget flags. */ #define GTK_WIDGET_SET_FLAGS(wid,flag) G_STMT_START{ (GTK_WIDGET_FLAGS (wid) |= (flag)); }G_STMT_END #define GTK_WIDGET_UNSET_FLAGS(wid,flag) G_STMT_START{ (GTK_WIDGET_FLAGS (wid) &= ~(flag)); }G_STMT_END #define GTK_TYPE_REQUISITION (gtk_requisition_get_type ()) /* forward declaration to avoid excessive includes (and concurrent includes) */ typedef struct _GtkRequisition GtkRequisition; typedef GdkRectangle GtkAllocation; typedef struct _GtkSelectionData GtkSelectionData; typedef struct _GtkWidgetClass GtkWidgetClass; typedef struct _GtkWidgetAuxInfo GtkWidgetAuxInfo; typedef struct _GtkWidgetShapeInfo GtkWidgetShapeInfo; typedef struct _GtkClipboard GtkClipboard; typedef void (*GtkCallback) (GtkWidget *widget, gpointer data); /* A requisition is a desired amount of space which a * widget may request. */ 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; /* 16 bits of internally used private flags. * this will be packed into the same 4 byte alignment frame that * state and saved_state go. we therefore don't waste any new * space on this. */ guint16 private_flags; /* The state of the widget. There are actually only * 5 widget states (defined in "gtkenums.h"). */ guint8 state; /* The saved state of the widget. When a widgets state * is changed to GTK_STATE_INSENSITIVE via * "gtk_widget_set_state" or "gtk_widget_set_sensitive" * the old state is kept around in this field. The state * will be restored once the widget gets sensitive again. */ guint8 saved_state; /* The widgets name. If the widget does not have a name * (the name is NULL), then its name (as returned by * "gtk_widget_get_name") is its classes name. * Among other things, the widget name is used to determine * the style to use for a widget. */ gchar *name; /* The style for the widget. The style contains the * colors the widget should be drawn in for each state * along with graphics contexts used to draw with and * the font to use for text. */ GtkStyle *style; /* The widgets desired size. */ GtkRequisition requisition; /* The widgets allocated size. */ GtkAllocation allocation; /* The widgets window or its parent window if it does * not have a window. (Which will be indicated by the * GTK_NO_WINDOW flag being set). */ GdkWindow *window; /* The widgets parent. */ GtkWidget *parent; }; struct _GtkWidgetClass { /* 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. */ 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); /* 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); /* 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); }; struct _GtkWidgetAuxInfo { gint x; gint y; gint width; gint height; guint x_set : 1; guint y_set : 1; }; struct _GtkWidgetShapeInfo { gint16 offset_x; gint16 offset_y; GdkBitmap *shape_mask; }; GType gtk_widget_get_type (void) G_GNUC_CONST; GtkWidget* gtk_widget_new (GType type, const gchar *first_property_name, ...); GtkWidget* gtk_widget_ref (GtkWidget *widget); void gtk_widget_unref (GtkWidget *widget); void gtk_widget_destroy (GtkWidget *widget); void gtk_widget_destroyed (GtkWidget *widget, GtkWidget **widget_pointer); #ifndef GTK_DISABLE_DEPRECATED void gtk_widget_set (GtkWidget *widget, const gchar *first_property_name, ...); #endif /* GTK_DISABLE_DEPRECATED */ 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_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); #ifndef GTK_DISABLE_DEPRECATED void gtk_widget_queue_clear (GtkWidget *widget); void gtk_widget_queue_clear_area (GtkWidget *widget, gint x, gint y, gint width, gint height); #endif /* GTK_DISABLE_DEPRECATED */ void gtk_widget_queue_resize (GtkWidget *widget); void gtk_widget_queue_resize_no_redraw (GtkWidget *widget); #ifndef GTK_DISABLE_DEPRECATED void gtk_widget_draw (GtkWidget *widget, GdkRectangle *area); #endif /* GTK_DISABLE_DEPRECATED */ void gtk_widget_size_request (GtkWidget *widget, GtkRequisition *requisition); void gtk_widget_size_allocate (GtkWidget *widget, GtkAllocation *allocation); void gtk_widget_get_child_requisition (GtkWidget *widget, GtkRequisition *requisition); 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_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_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, GdkRectangle *area, GdkRectangle *intersection); GdkRegion *gtk_widget_region_intersect (GtkWidget *widget, GdkRegion *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); gboolean gtk_widget_is_focus (GtkWidget *widget); void gtk_widget_grab_focus (GtkWidget *widget); void gtk_widget_grab_default (GtkWidget *widget); 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); void gtk_widget_set_sensitive (GtkWidget *widget, gboolean sensitive); void gtk_widget_set_app_paintable (GtkWidget *widget, gboolean app_paintable); void gtk_widget_set_double_buffered (GtkWidget *widget, gboolean double_buffered); void gtk_widget_set_redraw_on_allocate (GtkWidget *widget, gboolean redraw_on_allocate); void gtk_widget_set_parent (GtkWidget *widget, GtkWidget *parent); void gtk_widget_set_parent_window (GtkWidget *widget, GdkWindow *parent_window); void gtk_widget_set_child_visible (GtkWidget *widget, gboolean is_visible); gboolean gtk_widget_get_child_visible (GtkWidget *widget); GtkWidget *gtk_widget_get_parent (GtkWidget *widget); GdkWindow *gtk_widget_get_parent_window (GtkWidget *widget); gboolean gtk_widget_child_focus (GtkWidget *widget, GtkDirectionType direction); void gtk_widget_set_size_request (GtkWidget *widget, gint width, gint height); void gtk_widget_get_size_request (GtkWidget *widget, gint *width, gint *height); #ifndef GTK_DISABLE_DEPRECATED void gtk_widget_set_uposition (GtkWidget *widget, gint x, gint y); void gtk_widget_set_usize (GtkWidget *widget, gint width, gint height); #endif void gtk_widget_set_events (GtkWidget *widget, gint events); void gtk_widget_add_events (GtkWidget *widget, gint 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); GdkColormap* gtk_widget_get_colormap (GtkWidget *widget); 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); #ifndef GTK_DISABLE_DEPRECATED #define gtk_widget_set_visual(widget,visual) ((void) 0) #define gtk_widget_push_visual(visual) ((void) 0) #define gtk_widget_pop_visual() ((void) 0) #define gtk_widget_set_default_visual(visual) ((void) 0) #endif /* GTK_DISABLE_DEPRECATED */ /* Accessibility support */ AtkObject* gtk_widget_get_accessible (GtkWidget *widget); /* The following functions must not be called on an already * realized widget. Because it is possible that somebody * can call get_colormap() or get_visual() and save the * result, these functions are probably only safe to * call in a widget's init() function. */ void gtk_widget_set_colormap (GtkWidget *widget, GdkColormap *colormap); gint gtk_widget_get_events (GtkWidget *widget); 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_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, GdkColor *color); void gtk_widget_modify_bg (GtkWidget *widget, GtkStateType state, GdkColor *color); void gtk_widget_modify_text (GtkWidget *widget, GtkStateType state, GdkColor *color); void gtk_widget_modify_base (GtkWidget *widget, GtkStateType state, GdkColor *color); void gtk_widget_modify_font (GtkWidget *widget, PangoFontDescription *font_desc); #ifndef GTK_DISABLE_DEPRECATED #define gtk_widget_set_rc_style(widget) (gtk_widget_set_style (widget, NULL)) #define gtk_widget_restore_default_style(widget) (gtk_widget_set_style (widget, NULL)) #endif 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_colormap (GdkColormap *cmap); void gtk_widget_push_composite_child (void); void gtk_widget_pop_composite_child (void); void gtk_widget_pop_colormap (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, ...); /* Set certain default values to be used at widget creation time. */ void gtk_widget_set_default_colormap (GdkColormap *colormap); GtkStyle* gtk_widget_get_default_style (void); #ifndef GDK_MULTIHEAD_SAFE GdkColormap* gtk_widget_get_default_colormap (void); GdkVisual* gtk_widget_get_default_visual (void); #endif /* 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); /* Counterpart to gdk_window_shape_combine_mask. */ void gtk_widget_shape_combine_mask (GtkWidget *widget, GdkBitmap *shape_mask, gint offset_x, gint offset_y); /* 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); GType gtk_requisition_get_type (void); GtkRequisition *gtk_requisition_copy (const GtkRequisition *requisition); void gtk_requisition_free (GtkRequisition *requisition); #if defined (GTK_TRACE_OBJECTS) && defined (__GNUC__) # define gtk_widget_ref gtk_object_ref # define gtk_widget_unref gtk_object_unref #endif /* GTK_TRACE_OBJECTS && __GNUC__ */ 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); GdkColormap* _gtk_widget_peek_colormap (void); #ifdef __cplusplus } #endif /* __cplusplus */ #endif /* __GTK_WIDGET_H__ */