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gtk2/gtk/gtkcombobox.c
Martin Pitt e48f5b4073 Backport a lot of GI transfer annotations 
This dramatically improves using GTK2 with g-i.

Taken from master commit e0aa12eb0a without the non-documentation changes.
2011-01-10 14:43:00 -06:00

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/* gtkcombobox.c
* Copyright (C) 2002, 2003 Kristian Rietveld <kris@gtk.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library 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.
*/
#include "config.h"
#include "gtkcombobox.h"
#include "gtkarrow.h"
#include "gtkbindings.h"
#include "gtkcelllayout.h"
#include "gtkcellrenderertext.h"
#include "gtkcellview.h"
#include "gtkeventbox.h"
#include "gtkframe.h"
#include "gtkhbox.h"
#include "gtkliststore.h"
#include "gtkmain.h"
#include "gtkmenu.h"
#include "gtkscrolledwindow.h"
#include "gtkseparatormenuitem.h"
#include "gtktearoffmenuitem.h"
#include "gtktogglebutton.h"
#include "gtktreeselection.h"
#include "gtkvseparator.h"
#include "gtkwindow.h"
#include "gtkprivate.h"
#include <gdk/gdkkeysyms.h>
#include <gobject/gvaluecollector.h>
#include <string.h>
#include <stdarg.h>
#include "gtkmarshalers.h"
#include "gtkintl.h"
#include "gtktreeprivate.h"
#include "gtkalias.h"
/**
* SECTION:gtkcombobox
* @Short_description: A widget used to choose from a list of items
* @Title: GtkComboBox
* @See_also: #GtkComboBoxText, #GtkTreeModel, #GtkCellRenderer
*
* A GtkComboBox is a widget that allows the user to choose from a list of
* valid choices. The GtkComboBox displays the selected choice. When
* activated, the GtkComboBox displays a popup which allows the user to
* make a new choice. The style in which the selected value is displayed,
* and the style of the popup is determined by the current theme. It may
* be similar to a Windows-style combo box.
*
* The GtkComboBox uses the model-view pattern; the list of valid choices
* is specified in the form of a tree model, and the display of the choices
* can be adapted to the data in the model by using cell renderers, as you
* would in a tree view. This is possible since GtkComboBox implements the
* #GtkCellLayout interface. The tree model holding the valid choices is
* not restricted to a flat list, it can be a real tree, and the popup will
* reflect the tree structure.
*
* To allow the user to enter values not in the model, the 'has-entry'
* property allows the GtkComboBox to contain a #GtkEntry. This entry
* can be accessed by calling gtk_bin_get_child() on the combo box.
*
* For a simple list of textual choices, the model-view API of GtkComboBox
* can be a bit overwhelming. In this case, #GtkComboBoxText offers a
* simple alternative. Both GtkComboBox and #GtkComboBoxText can contain
* an entry.
*/
/* WELCOME, to THE house of evil code */
typedef struct _ComboCellInfo ComboCellInfo;
struct _ComboCellInfo
{
GtkCellRenderer *cell;
GSList *attributes;
GtkCellLayoutDataFunc func;
gpointer func_data;
GDestroyNotify destroy;
guint expand : 1;
guint pack : 1;
};
#define GTK_COMBO_BOX_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_COMBO_BOX, GtkComboBoxPrivate))
struct _GtkComboBoxPrivate
{
GtkTreeModel *model;
gint col_column;
gint row_column;
gint wrap_width;
GtkShadowType shadow_type;
gint active; /* Only temporary */
GtkTreeRowReference *active_row;
GtkWidget *tree_view;
GtkTreeViewColumn *column;
GtkWidget *cell_view;
GtkWidget *cell_view_frame;
GtkWidget *button;
GtkWidget *box;
GtkWidget *arrow;
GtkWidget *separator;
GtkWidget *popup_widget;
GtkWidget *popup_window;
GtkWidget *scrolled_window;
guint inserted_id;
guint deleted_id;
guint reordered_id;
guint changed_id;
guint popup_idle_id;
guint activate_button;
guint32 activate_time;
guint scroll_timer;
guint resize_idle_id;
gint width;
gint height;
/* For "has-entry" specific behavior we track
* an automated cell renderer and text column */
gint text_column;
GtkCellRenderer *text_renderer;
GSList *cells;
guint popup_in_progress : 1;
guint popup_shown : 1;
guint add_tearoffs : 1;
guint has_frame : 1;
guint is_cell_renderer : 1;
guint editing_canceled : 1;
guint auto_scroll : 1;
guint focus_on_click : 1;
guint button_sensitivity : 2;
guint has_entry : 1;
GtkTreeViewRowSeparatorFunc row_separator_func;
gpointer row_separator_data;
GDestroyNotify row_separator_destroy;
gchar *tearoff_title;
};
/* While debugging this evil code, I have learned that
* there are actually 4 modes to this widget, which can
* be characterized as follows
*
* 1) menu mode, no child added
*
* tree_view -> NULL
* cell_view -> GtkCellView, regular child
* cell_view_frame -> NULL
* button -> GtkToggleButton set_parent to combo
* arrow -> GtkArrow set_parent to button
* separator -> GtkVSepator set_parent to button
* popup_widget -> GtkMenu
* popup_window -> NULL
* scrolled_window -> NULL
*
* 2) menu mode, child added
*
* tree_view -> NULL
* cell_view -> NULL
* cell_view_frame -> NULL
* button -> GtkToggleButton set_parent to combo
* arrow -> GtkArrow, child of button
* separator -> NULL
* popup_widget -> GtkMenu
* popup_window -> NULL
* scrolled_window -> NULL
*
* 3) list mode, no child added
*
* tree_view -> GtkTreeView, child of scrolled_window
* cell_view -> GtkCellView, regular child
* cell_view_frame -> GtkFrame, set parent to combo
* button -> GtkToggleButton, set_parent to combo
* arrow -> GtkArrow, child of button
* separator -> NULL
* popup_widget -> tree_view
* popup_window -> GtkWindow
* scrolled_window -> GtkScrolledWindow, child of popup_window
*
* 4) list mode, child added
*
* tree_view -> GtkTreeView, child of scrolled_window
* cell_view -> NULL
* cell_view_frame -> NULL
* button -> GtkToggleButton, set_parent to combo
* arrow -> GtkArrow, child of button
* separator -> NULL
* popup_widget -> tree_view
* popup_window -> GtkWindow
* scrolled_window -> GtkScrolledWindow, child of popup_window
*
*/
enum {
CHANGED,
MOVE_ACTIVE,
POPUP,
POPDOWN,
LAST_SIGNAL
};
enum {
PROP_0,
PROP_MODEL,
PROP_WRAP_WIDTH,
PROP_ROW_SPAN_COLUMN,
PROP_COLUMN_SPAN_COLUMN,
PROP_ACTIVE,
PROP_ADD_TEAROFFS,
PROP_TEAROFF_TITLE,
PROP_HAS_FRAME,
PROP_FOCUS_ON_CLICK,
PROP_POPUP_SHOWN,
PROP_BUTTON_SENSITIVITY,
PROP_EDITING_CANCELED,
PROP_HAS_ENTRY,
PROP_ENTRY_TEXT_COLUMN
};
static guint combo_box_signals[LAST_SIGNAL] = {0,};
#define BONUS_PADDING 4
#define SCROLL_TIME 100
/* common */
static void gtk_combo_box_cell_layout_init (GtkCellLayoutIface *iface);
static void gtk_combo_box_cell_editable_init (GtkCellEditableIface *iface);
static GObject *gtk_combo_box_constructor (GType type,
guint n_construct_properties,
GObjectConstructParam *construct_properties);
static void gtk_combo_box_dispose (GObject *object);
static void gtk_combo_box_finalize (GObject *object);
static void gtk_combo_box_destroy (GtkObject *object);
static void gtk_combo_box_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *spec);
static void gtk_combo_box_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *spec);
static void gtk_combo_box_state_changed (GtkWidget *widget,
GtkStateType previous);
static void gtk_combo_box_grab_focus (GtkWidget *widget);
static void gtk_combo_box_style_set (GtkWidget *widget,
GtkStyle *previous);
static void gtk_combo_box_button_toggled (GtkWidget *widget,
gpointer data);
static void gtk_combo_box_button_state_changed (GtkWidget *widget,
GtkStateType previous,
gpointer data);
static void gtk_combo_box_add (GtkContainer *container,
GtkWidget *widget);
static void gtk_combo_box_remove (GtkContainer *container,
GtkWidget *widget);
static ComboCellInfo *gtk_combo_box_get_cell_info (GtkComboBox *combo_box,
GtkCellRenderer *cell);
static void gtk_combo_box_menu_show (GtkWidget *menu,
gpointer user_data);
static void gtk_combo_box_menu_hide (GtkWidget *menu,
gpointer user_data);
static void gtk_combo_box_set_popup_widget (GtkComboBox *combo_box,
GtkWidget *popup);
static void gtk_combo_box_menu_position_below (GtkMenu *menu,
gint *x,
gint *y,
gint *push_in,
gpointer user_data);
static void gtk_combo_box_menu_position_over (GtkMenu *menu,
gint *x,
gint *y,
gint *push_in,
gpointer user_data);
static void gtk_combo_box_menu_position (GtkMenu *menu,
gint *x,
gint *y,
gint *push_in,
gpointer user_data);
static gint gtk_combo_box_calc_requested_width (GtkComboBox *combo_box,
GtkTreePath *path);
static void gtk_combo_box_remeasure (GtkComboBox *combo_box);
static void gtk_combo_box_unset_model (GtkComboBox *combo_box);
static void gtk_combo_box_size_request (GtkWidget *widget,
GtkRequisition *requisition);
static void gtk_combo_box_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static void gtk_combo_box_forall (GtkContainer *container,
gboolean include_internals,
GtkCallback callback,
gpointer callback_data);
static gboolean gtk_combo_box_expose_event (GtkWidget *widget,
GdkEventExpose *event);
static gboolean gtk_combo_box_scroll_event (GtkWidget *widget,
GdkEventScroll *event);
static void gtk_combo_box_set_active_internal (GtkComboBox *combo_box,
GtkTreePath *path);
static void gtk_combo_box_check_appearance (GtkComboBox *combo_box);
static gchar * gtk_combo_box_real_get_active_text (GtkComboBox *combo_box);
static void gtk_combo_box_real_move_active (GtkComboBox *combo_box,
GtkScrollType scroll);
static void gtk_combo_box_real_popup (GtkComboBox *combo_box);
static gboolean gtk_combo_box_real_popdown (GtkComboBox *combo_box);
/* listening to the model */
static void gtk_combo_box_model_row_inserted (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer user_data);
static void gtk_combo_box_model_row_deleted (GtkTreeModel *model,
GtkTreePath *path,
gpointer user_data);
static void gtk_combo_box_model_rows_reordered (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gint *new_order,
gpointer user_data);
static void gtk_combo_box_model_row_changed (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data);
static void gtk_combo_box_model_row_expanded (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data);
/* list */
static void gtk_combo_box_list_position (GtkComboBox *combo_box,
gint *x,
gint *y,
gint *width,
gint *height);
static void gtk_combo_box_list_setup (GtkComboBox *combo_box);
static void gtk_combo_box_list_destroy (GtkComboBox *combo_box);
static gboolean gtk_combo_box_list_button_released (GtkWidget *widget,
GdkEventButton *event,
gpointer data);
static gboolean gtk_combo_box_list_key_press (GtkWidget *widget,
GdkEventKey *event,
gpointer data);
static gboolean gtk_combo_box_list_enter_notify (GtkWidget *widget,
GdkEventCrossing *event,
gpointer data);
static void gtk_combo_box_list_auto_scroll (GtkComboBox *combo,
gint x,
gint y);
static gboolean gtk_combo_box_list_scroll_timeout (GtkComboBox *combo);
static gboolean gtk_combo_box_list_button_pressed (GtkWidget *widget,
GdkEventButton *event,
gpointer data);
static gboolean gtk_combo_box_list_select_func (GtkTreeSelection *selection,
GtkTreeModel *model,
GtkTreePath *path,
gboolean path_currently_selected,
gpointer data);
static void gtk_combo_box_list_row_changed (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data);
static void gtk_combo_box_list_popup_resize (GtkComboBox *combo_box);
/* menu */
static void gtk_combo_box_menu_setup (GtkComboBox *combo_box,
gboolean add_children);
static void gtk_combo_box_menu_fill (GtkComboBox *combo_box);
static void gtk_combo_box_menu_fill_level (GtkComboBox *combo_box,
GtkWidget *menu,
GtkTreeIter *iter);
static void gtk_combo_box_update_title (GtkComboBox *combo_box);
static void gtk_combo_box_menu_destroy (GtkComboBox *combo_box);
static void gtk_combo_box_relayout_item (GtkComboBox *combo_box,
GtkWidget *item,
GtkTreeIter *iter,
GtkWidget *last);
static void gtk_combo_box_relayout (GtkComboBox *combo_box);
static gboolean gtk_combo_box_menu_button_press (GtkWidget *widget,
GdkEventButton *event,
gpointer user_data);
static void gtk_combo_box_menu_item_activate (GtkWidget *item,
gpointer user_data);
static void gtk_combo_box_update_sensitivity (GtkComboBox *combo_box);
static void gtk_combo_box_menu_row_inserted (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer user_data);
static void gtk_combo_box_menu_row_deleted (GtkTreeModel *model,
GtkTreePath *path,
gpointer user_data);
static void gtk_combo_box_menu_rows_reordered (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gint *new_order,
gpointer user_data);
static void gtk_combo_box_menu_row_changed (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data);
static gboolean gtk_combo_box_menu_key_press (GtkWidget *widget,
GdkEventKey *event,
gpointer data);
static void gtk_combo_box_menu_popup (GtkComboBox *combo_box,
guint button,
guint32 activate_time);
static GtkWidget *gtk_cell_view_menu_item_new (GtkComboBox *combo_box,
GtkTreeModel *model,
GtkTreeIter *iter);
/* cell layout */
static void gtk_combo_box_cell_layout_pack_start (GtkCellLayout *layout,
GtkCellRenderer *cell,
gboolean expand);
static void gtk_combo_box_cell_layout_pack_end (GtkCellLayout *layout,
GtkCellRenderer *cell,
gboolean expand);
static GList *gtk_combo_box_cell_layout_get_cells (GtkCellLayout *layout);
static void gtk_combo_box_cell_layout_clear (GtkCellLayout *layout);
static void gtk_combo_box_cell_layout_add_attribute (GtkCellLayout *layout,
GtkCellRenderer *cell,
const gchar *attribute,
gint column);
static void gtk_combo_box_cell_layout_set_cell_data_func (GtkCellLayout *layout,
GtkCellRenderer *cell,
GtkCellLayoutDataFunc func,
gpointer func_data,
GDestroyNotify destroy);
static void gtk_combo_box_cell_layout_clear_attributes (GtkCellLayout *layout,
GtkCellRenderer *cell);
static void gtk_combo_box_cell_layout_reorder (GtkCellLayout *layout,
GtkCellRenderer *cell,
gint position);
static gboolean gtk_combo_box_mnemonic_activate (GtkWidget *widget,
gboolean group_cycling);
static void gtk_combo_box_sync_cells (GtkComboBox *combo_box,
GtkCellLayout *cell_layout);
static void combo_cell_data_func (GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
GtkTreeModel *tree_model,
GtkTreeIter *iter,
gpointer data);
static void gtk_combo_box_child_show (GtkWidget *widget,
GtkComboBox *combo_box);
static void gtk_combo_box_child_hide (GtkWidget *widget,
GtkComboBox *combo_box);
/* GtkComboBox:has-entry callbacks */
static void gtk_combo_box_entry_contents_changed (GtkEntry *entry,
gpointer user_data);
static void gtk_combo_box_entry_active_changed (GtkComboBox *combo_box,
gpointer user_data);
/* GtkBuildable method implementation */
static GtkBuildableIface *parent_buildable_iface;
static void gtk_combo_box_buildable_init (GtkBuildableIface *iface);
static gboolean gtk_combo_box_buildable_custom_tag_start (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *tagname,
GMarkupParser *parser,
gpointer *data);
static void gtk_combo_box_buildable_custom_tag_end (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *tagname,
gpointer *data);
static GObject *gtk_combo_box_buildable_get_internal_child (GtkBuildable *buildable,
GtkBuilder *builder,
const gchar *childname);
/* GtkCellEditable method implementations */
static void gtk_combo_box_start_editing (GtkCellEditable *cell_editable,
GdkEvent *event);
G_DEFINE_TYPE_WITH_CODE (GtkComboBox, gtk_combo_box, GTK_TYPE_BIN,
G_IMPLEMENT_INTERFACE (GTK_TYPE_CELL_LAYOUT,
gtk_combo_box_cell_layout_init)
G_IMPLEMENT_INTERFACE (GTK_TYPE_CELL_EDITABLE,
gtk_combo_box_cell_editable_init)
G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
gtk_combo_box_buildable_init))
/* common */
static void
gtk_combo_box_class_init (GtkComboBoxClass *klass)
{
GObjectClass *object_class;
GtkObjectClass *gtk_object_class;
GtkContainerClass *container_class;
GtkWidgetClass *widget_class;
GtkBindingSet *binding_set;
klass->get_active_text = gtk_combo_box_real_get_active_text;
container_class = (GtkContainerClass *)klass;
container_class->forall = gtk_combo_box_forall;
container_class->add = gtk_combo_box_add;
container_class->remove = gtk_combo_box_remove;
widget_class = (GtkWidgetClass *)klass;
widget_class->size_allocate = gtk_combo_box_size_allocate;
widget_class->size_request = gtk_combo_box_size_request;
widget_class->expose_event = gtk_combo_box_expose_event;
widget_class->scroll_event = gtk_combo_box_scroll_event;
widget_class->mnemonic_activate = gtk_combo_box_mnemonic_activate;
widget_class->grab_focus = gtk_combo_box_grab_focus;
widget_class->style_set = gtk_combo_box_style_set;
widget_class->state_changed = gtk_combo_box_state_changed;
gtk_object_class = (GtkObjectClass *)klass;
gtk_object_class->destroy = gtk_combo_box_destroy;
object_class = (GObjectClass *)klass;
object_class->constructor = gtk_combo_box_constructor;
object_class->dispose = gtk_combo_box_dispose;
object_class->finalize = gtk_combo_box_finalize;
object_class->set_property = gtk_combo_box_set_property;
object_class->get_property = gtk_combo_box_get_property;
/* signals */
/**
* GtkComboBox::changed:
* @widget: the object which received the signal
*
* The changed signal is emitted when the active
* item is changed. The can be due to the user selecting
* a different item from the list, or due to a
* call to gtk_combo_box_set_active_iter().
* It will also be emitted while typing into a GtkComboBoxEntry,
* as well as when selecting an item from the GtkComboBoxEntry's list.
*
* Since: 2.4
*/
combo_box_signals[CHANGED] =
g_signal_new (I_("changed"),
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkComboBoxClass, changed),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
/**
* GtkComboBox::move-active:
* @widget: the object that received the signal
* @scroll_type: a #GtkScrollType
*
* The ::move-active signal is a
* <link linkend="keybinding-signals">keybinding signal</link>
* which gets emitted to move the active selection.
*
* Since: 2.12
*/
combo_box_signals[MOVE_ACTIVE] =
g_signal_new_class_handler (I_("move-active"),
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_CALLBACK (gtk_combo_box_real_move_active),
NULL, NULL,
g_cclosure_marshal_VOID__ENUM,
G_TYPE_NONE, 1,
GTK_TYPE_SCROLL_TYPE);
/**
* GtkComboBox::popup:
* @widget: the object that received the signal
*
* The ::popup signal is a
* <link linkend="keybinding-signals">keybinding signal</link>
* which gets emitted to popup the combo box list.
*
* The default binding for this signal is Alt+Down.
*
* Since: 2.12
*/
combo_box_signals[POPUP] =
g_signal_new_class_handler (I_("popup"),
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_CALLBACK (gtk_combo_box_real_popup),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
/**
* GtkComboBox::popdown:
* @button: the object which received the signal
*
* The ::popdown signal is a
* <link linkend="keybinding-signals">keybinding signal</link>
* which gets emitted to popdown the combo box list.
*
* The default bindings for this signal are Alt+Up and Escape.
*
* Since: 2.12
*/
combo_box_signals[POPDOWN] =
g_signal_new_class_handler (I_("popdown"),
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_CALLBACK (gtk_combo_box_real_popdown),
NULL, NULL,
_gtk_marshal_BOOLEAN__VOID,
G_TYPE_BOOLEAN, 0);
/* key bindings */
binding_set = gtk_binding_set_by_class (widget_class);
gtk_binding_entry_add_signal (binding_set, GDK_Down, GDK_MOD1_MASK,
"popup", 0);
gtk_binding_entry_add_signal (binding_set, GDK_KP_Down, GDK_MOD1_MASK,
"popup", 0);
gtk_binding_entry_add_signal (binding_set, GDK_Up, GDK_MOD1_MASK,
"popdown", 0);
gtk_binding_entry_add_signal (binding_set, GDK_KP_Up, GDK_MOD1_MASK,
"popdown", 0);
gtk_binding_entry_add_signal (binding_set, GDK_Escape, 0,
"popdown", 0);
gtk_binding_entry_add_signal (binding_set, GDK_Up, 0,
"move-active", 1,
GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_STEP_UP);
gtk_binding_entry_add_signal (binding_set, GDK_KP_Up, 0,
"move-active", 1,
GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_STEP_UP);
gtk_binding_entry_add_signal (binding_set, GDK_Page_Up, 0,
"move-active", 1,
GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_PAGE_UP);
gtk_binding_entry_add_signal (binding_set, GDK_KP_Page_Up, 0,
"move-active", 1,
GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_PAGE_UP);
gtk_binding_entry_add_signal (binding_set, GDK_Home, 0,
"move-active", 1,
GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_START);
gtk_binding_entry_add_signal (binding_set, GDK_KP_Home, 0,
"move-active", 1,
GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_START);
gtk_binding_entry_add_signal (binding_set, GDK_Down, 0,
"move-active", 1,
GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_STEP_DOWN);
gtk_binding_entry_add_signal (binding_set, GDK_KP_Down, 0,
"move-active", 1,
GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_STEP_DOWN);
gtk_binding_entry_add_signal (binding_set, GDK_Page_Down, 0,
"move-active", 1,
GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_PAGE_DOWN);
gtk_binding_entry_add_signal (binding_set, GDK_KP_Page_Down, 0,
"move-active", 1,
GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_PAGE_DOWN);
gtk_binding_entry_add_signal (binding_set, GDK_End, 0,
"move-active", 1,
GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_END);
gtk_binding_entry_add_signal (binding_set, GDK_KP_End, 0,
"move-active", 1,
GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_END);
/* properties */
g_object_class_override_property (object_class,
PROP_EDITING_CANCELED,
"editing-canceled");
/**
* GtkComboBox:model:
*
* The model from which the combo box takes the values shown
* in the list.
*
* Since: 2.4
*/
g_object_class_install_property (object_class,
PROP_MODEL,
g_param_spec_object ("model",
P_("ComboBox model"),
P_("The model for the combo box"),
GTK_TYPE_TREE_MODEL,
GTK_PARAM_READWRITE));
/**
* GtkComboBox:wrap-width:
*
* If wrap-width is set to a positive value, the list will be
* displayed in multiple columns, the number of columns is
* determined by wrap-width.
*
* Since: 2.4
*/
g_object_class_install_property (object_class,
PROP_WRAP_WIDTH,
g_param_spec_int ("wrap-width",
P_("Wrap width"),
P_("Wrap width for laying out the items in a grid"),
0,
G_MAXINT,
0,
GTK_PARAM_READWRITE));
/**
* GtkComboBox:row-span-column:
*
* If this is set to a non-negative value, it must be the index of a column
* of type %G_TYPE_INT in the model.
*
* The values of that column are used to determine how many rows a value in
* the list will span. Therefore, the values in the model column pointed to
* by this property must be greater than zero and not larger than wrap-width.
*
* Since: 2.4
*/
g_object_class_install_property (object_class,
PROP_ROW_SPAN_COLUMN,
g_param_spec_int ("row-span-column",
P_("Row span column"),
P_("TreeModel column containing the row span values"),
-1,
G_MAXINT,
-1,
GTK_PARAM_READWRITE));
/**
* GtkComboBox:column-span-column:
*
* If this is set to a non-negative value, it must be the index of a column
* of type %G_TYPE_INT in the model.
*
* The values of that column are used to determine how many columns a value
* in the list will span.
*
* Since: 2.4
*/
g_object_class_install_property (object_class,
PROP_COLUMN_SPAN_COLUMN,
g_param_spec_int ("column-span-column",
P_("Column span column"),
P_("TreeModel column containing the column span values"),
-1,
G_MAXINT,
-1,
GTK_PARAM_READWRITE));
/**
* GtkComboBox:active:
*
* The item which is currently active. If the model is a non-flat treemodel,
* and the active item is not an immediate child of the root of the tree,
* this property has the value
* <literal>gtk_tree_path_get_indices (path)[0]</literal>,
* where <literal>path</literal> is the #GtkTreePath of the active item.
*
* Since: 2.4
*/
g_object_class_install_property (object_class,
PROP_ACTIVE,
g_param_spec_int ("active",
P_("Active item"),
P_("The item which is currently active"),
-1,
G_MAXINT,
-1,
GTK_PARAM_READWRITE));
/**
* GtkComboBox:add-tearoffs:
*
* The add-tearoffs property controls whether generated menus
* have tearoff menu items.
*
* Note that this only affects menu style combo boxes.
*
* Since: 2.6
*/
g_object_class_install_property (object_class,
PROP_ADD_TEAROFFS,
g_param_spec_boolean ("add-tearoffs",
P_("Add tearoffs to menus"),
P_("Whether dropdowns should have a tearoff menu item"),
FALSE,
GTK_PARAM_READWRITE));
/**
* GtkComboBox:has-frame:
*
* The has-frame property controls whether a frame
* is drawn around the entry.
*
* Since: 2.6
*/
g_object_class_install_property (object_class,
PROP_HAS_FRAME,
g_param_spec_boolean ("has-frame",
P_("Has Frame"),
P_("Whether the combo box draws a frame around the child"),
TRUE,
GTK_PARAM_READWRITE));
g_object_class_install_property (object_class,
PROP_FOCUS_ON_CLICK,
g_param_spec_boolean ("focus-on-click",
P_("Focus on click"),
P_("Whether the combo box grabs focus when it is clicked with the mouse"),
TRUE,
GTK_PARAM_READWRITE));
/**
* GtkComboBox:tearoff-title:
*
* A title that may be displayed by the window manager
* when the popup is torn-off.
*
* Since: 2.10
*/
g_object_class_install_property (object_class,
PROP_TEAROFF_TITLE,
g_param_spec_string ("tearoff-title",
P_("Tearoff Title"),
P_("A title that may be displayed by the window manager when the popup is torn-off"),
NULL,
GTK_PARAM_READWRITE));
/**
* GtkComboBox:popup-shown:
*
* Whether the combo boxes dropdown is popped up.
* Note that this property is mainly useful, because
* it allows you to connect to notify::popup-shown.
*
* Since: 2.10
*/
g_object_class_install_property (object_class,
PROP_POPUP_SHOWN,
g_param_spec_boolean ("popup-shown",
P_("Popup shown"),
P_("Whether the combo's dropdown is shown"),
FALSE,
GTK_PARAM_READABLE));
/**
* GtkComboBox:button-sensitivity:
*
* Whether the dropdown button is sensitive when
* the model is empty.
*
* Since: 2.14
*/
g_object_class_install_property (object_class,
PROP_BUTTON_SENSITIVITY,
g_param_spec_enum ("button-sensitivity",
P_("Button Sensitivity"),
P_("Whether the dropdown button is sensitive when the model is empty"),
GTK_TYPE_SENSITIVITY_TYPE,
GTK_SENSITIVITY_AUTO,
GTK_PARAM_READWRITE));
/**
* GtkComboBox:has-entry:
*
* Whether the combo box has an entry.
*
* Since: 2.24
*/
g_object_class_install_property (object_class,
PROP_HAS_ENTRY,
g_param_spec_boolean ("has-entry",
P_("Has Entry"),
P_("Whether combo box has an entry"),
FALSE,
GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
/**
* GtkComboBox:entry-text-column:
*
* The column in the combo box's model to associate with strings from the entry
* if the combo was created with #GtkComboBox:has-entry = %TRUE.
*
* Since: 2.24
*/
g_object_class_install_property (object_class,
PROP_ENTRY_TEXT_COLUMN,
g_param_spec_int ("entry-text-column",
P_("Entry Text Column"),
P_("The column in the combo box's model to associate "
"with strings from the entry if the combo was "
"created with #GtkComboBox:has-entry = %TRUE"),
-1, G_MAXINT, -1,
GTK_PARAM_READWRITE));
gtk_widget_class_install_style_property (widget_class,
g_param_spec_boolean ("appears-as-list",
P_("Appears as list"),
P_("Whether dropdowns should look like lists rather than menus"),
FALSE,
GTK_PARAM_READABLE));
/**
* GtkComboBox:arrow-size:
*
* Sets the minimum size of the arrow in the combo box. Note
* that the arrow size is coupled to the font size, so in case
* a larger font is used, the arrow will be larger than set
* by arrow size.
*
* Since: 2.12
*/
gtk_widget_class_install_style_property (widget_class,
g_param_spec_int ("arrow-size",
P_("Arrow Size"),
P_("The minimum size of the arrow in the combo box"),
0,
G_MAXINT,
15,
GTK_PARAM_READABLE));
/**
* GtkComboBox:shadow-type:
*
* Which kind of shadow to draw around the combo box.
*
* Since: 2.12
*/
gtk_widget_class_install_style_property (widget_class,
g_param_spec_enum ("shadow-type",
P_("Shadow type"),
P_("Which kind of shadow to draw around the combo box"),
GTK_TYPE_SHADOW_TYPE,
GTK_SHADOW_NONE,
GTK_PARAM_READABLE));
g_type_class_add_private (object_class, sizeof (GtkComboBoxPrivate));
}
static void
gtk_combo_box_buildable_init (GtkBuildableIface *iface)
{
parent_buildable_iface = g_type_interface_peek_parent (iface);
iface->add_child = _gtk_cell_layout_buildable_add_child;
iface->custom_tag_start = gtk_combo_box_buildable_custom_tag_start;
iface->custom_tag_end = gtk_combo_box_buildable_custom_tag_end;
iface->get_internal_child = gtk_combo_box_buildable_get_internal_child;
}
static void
gtk_combo_box_cell_layout_init (GtkCellLayoutIface *iface)
{
iface->pack_start = gtk_combo_box_cell_layout_pack_start;
iface->pack_end = gtk_combo_box_cell_layout_pack_end;
iface->get_cells = gtk_combo_box_cell_layout_get_cells;
iface->clear = gtk_combo_box_cell_layout_clear;
iface->add_attribute = gtk_combo_box_cell_layout_add_attribute;
iface->set_cell_data_func = gtk_combo_box_cell_layout_set_cell_data_func;
iface->clear_attributes = gtk_combo_box_cell_layout_clear_attributes;
iface->reorder = gtk_combo_box_cell_layout_reorder;
}
static void
gtk_combo_box_cell_editable_init (GtkCellEditableIface *iface)
{
iface->start_editing = gtk_combo_box_start_editing;
}
static void
gtk_combo_box_init (GtkComboBox *combo_box)
{
GtkComboBoxPrivate *priv = GTK_COMBO_BOX_GET_PRIVATE (combo_box);
priv->cell_view = gtk_cell_view_new ();
gtk_widget_set_parent (priv->cell_view, GTK_WIDGET (combo_box));
GTK_BIN (combo_box)->child = priv->cell_view;
gtk_widget_show (priv->cell_view);
priv->width = 0;
priv->height = 0;
priv->wrap_width = 0;
priv->active = -1;
priv->active_row = NULL;
priv->col_column = -1;
priv->row_column = -1;
priv->popup_shown = FALSE;
priv->add_tearoffs = FALSE;
priv->has_frame = TRUE;
priv->is_cell_renderer = FALSE;
priv->editing_canceled = FALSE;
priv->auto_scroll = FALSE;
priv->focus_on_click = TRUE;
priv->button_sensitivity = GTK_SENSITIVITY_AUTO;
priv->has_entry = FALSE;
priv->text_column = -1;
priv->text_renderer = NULL;
combo_box->priv = priv;
gtk_combo_box_check_appearance (combo_box);
}
static void
gtk_combo_box_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (object);
switch (prop_id)
{
case PROP_MODEL:
gtk_combo_box_set_model (combo_box, g_value_get_object (value));
break;
case PROP_WRAP_WIDTH:
gtk_combo_box_set_wrap_width (combo_box, g_value_get_int (value));
break;
case PROP_ROW_SPAN_COLUMN:
gtk_combo_box_set_row_span_column (combo_box, g_value_get_int (value));
break;
case PROP_COLUMN_SPAN_COLUMN:
gtk_combo_box_set_column_span_column (combo_box, g_value_get_int (value));
break;
case PROP_ACTIVE:
gtk_combo_box_set_active (combo_box, g_value_get_int (value));
break;
case PROP_ADD_TEAROFFS:
gtk_combo_box_set_add_tearoffs (combo_box, g_value_get_boolean (value));
break;
case PROP_HAS_FRAME:
combo_box->priv->has_frame = g_value_get_boolean (value);
if (combo_box->priv->has_entry)
{
GtkWidget *child;
child = gtk_bin_get_child (GTK_BIN (combo_box));
gtk_entry_set_has_frame (GTK_ENTRY (child),
combo_box->priv->has_frame);
}
break;
case PROP_FOCUS_ON_CLICK:
gtk_combo_box_set_focus_on_click (combo_box,
g_value_get_boolean (value));
break;
case PROP_TEAROFF_TITLE:
gtk_combo_box_set_title (combo_box, g_value_get_string (value));
break;
case PROP_POPUP_SHOWN:
if (g_value_get_boolean (value))
gtk_combo_box_popup (combo_box);
else
gtk_combo_box_popdown (combo_box);
break;
case PROP_BUTTON_SENSITIVITY:
gtk_combo_box_set_button_sensitivity (combo_box,
g_value_get_enum (value));
break;
case PROP_EDITING_CANCELED:
combo_box->priv->editing_canceled = g_value_get_boolean (value);
break;
case PROP_HAS_ENTRY:
combo_box->priv->has_entry = g_value_get_boolean (value);
break;
case PROP_ENTRY_TEXT_COLUMN:
gtk_combo_box_set_entry_text_column (combo_box, g_value_get_int (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_combo_box_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (object);
GtkComboBoxPrivate *priv = GTK_COMBO_BOX_GET_PRIVATE (combo_box);
switch (prop_id)
{
case PROP_MODEL:
g_value_set_object (value, combo_box->priv->model);
break;
case PROP_WRAP_WIDTH:
g_value_set_int (value, combo_box->priv->wrap_width);
break;
case PROP_ROW_SPAN_COLUMN:
g_value_set_int (value, combo_box->priv->row_column);
break;
case PROP_COLUMN_SPAN_COLUMN:
g_value_set_int (value, combo_box->priv->col_column);
break;
case PROP_ACTIVE:
g_value_set_int (value, gtk_combo_box_get_active (combo_box));
break;
case PROP_ADD_TEAROFFS:
g_value_set_boolean (value, gtk_combo_box_get_add_tearoffs (combo_box));
break;
case PROP_HAS_FRAME:
g_value_set_boolean (value, combo_box->priv->has_frame);
break;
case PROP_FOCUS_ON_CLICK:
g_value_set_boolean (value, combo_box->priv->focus_on_click);
break;
case PROP_TEAROFF_TITLE:
g_value_set_string (value, gtk_combo_box_get_title (combo_box));
break;
case PROP_POPUP_SHOWN:
g_value_set_boolean (value, combo_box->priv->popup_shown);
break;
case PROP_BUTTON_SENSITIVITY:
g_value_set_enum (value, combo_box->priv->button_sensitivity);
break;
case PROP_EDITING_CANCELED:
g_value_set_boolean (value, priv->editing_canceled);
break;
case PROP_HAS_ENTRY:
g_value_set_boolean (value, priv->has_entry);
break;
case PROP_ENTRY_TEXT_COLUMN:
g_value_set_int (value, priv->text_column);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_combo_box_state_changed (GtkWidget *widget,
GtkStateType previous)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (widget);
GtkComboBoxPrivate *priv = combo_box->priv;
if (gtk_widget_get_realized (widget))
{
if (priv->tree_view && priv->cell_view)
gtk_cell_view_set_background_color (GTK_CELL_VIEW (priv->cell_view),
&widget->style->base[gtk_widget_get_state (widget)]);
}
gtk_widget_queue_draw (widget);
}
static void
gtk_combo_box_button_state_changed (GtkWidget *widget,
GtkStateType previous,
gpointer data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (data);
GtkComboBoxPrivate *priv = combo_box->priv;
if (gtk_widget_get_realized (widget))
{
if (!priv->tree_view && priv->cell_view)
{
if ((gtk_widget_get_state (widget) == GTK_STATE_INSENSITIVE) !=
(gtk_widget_get_state (priv->cell_view) == GTK_STATE_INSENSITIVE))
gtk_widget_set_sensitive (priv->cell_view, gtk_widget_get_sensitive (widget));
gtk_widget_set_state (priv->cell_view,
gtk_widget_get_state (widget));
}
}
gtk_widget_queue_draw (widget);
}
static void
gtk_combo_box_check_appearance (GtkComboBox *combo_box)
{
GtkComboBoxPrivate *priv = combo_box->priv;
gboolean appears_as_list;
/* if wrap_width > 0, then we are in grid-mode and forced to use
* unix style
*/
if (priv->wrap_width)
appears_as_list = FALSE;
else
gtk_widget_style_get (GTK_WIDGET (combo_box),
"appears-as-list", &appears_as_list,
NULL);
if (appears_as_list)
{
/* Destroy all the menu mode widgets, if they exist. */
if (GTK_IS_MENU (priv->popup_widget))
gtk_combo_box_menu_destroy (combo_box);
/* Create the list mode widgets, if they don't already exist. */
if (!GTK_IS_TREE_VIEW (priv->tree_view))
gtk_combo_box_list_setup (combo_box);
}
else
{
/* Destroy all the list mode widgets, if they exist. */
if (GTK_IS_TREE_VIEW (priv->tree_view))
gtk_combo_box_list_destroy (combo_box);
/* Create the menu mode widgets, if they don't already exist. */
if (!GTK_IS_MENU (priv->popup_widget))
gtk_combo_box_menu_setup (combo_box, TRUE);
}
gtk_widget_style_get (GTK_WIDGET (combo_box),
"shadow-type", &priv->shadow_type,
NULL);
}
static void
gtk_combo_box_style_set (GtkWidget *widget,
GtkStyle *previous)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (widget);
GtkComboBoxPrivate *priv = combo_box->priv;
gtk_combo_box_check_appearance (combo_box);
if (priv->tree_view && priv->cell_view)
gtk_cell_view_set_background_color (GTK_CELL_VIEW (priv->cell_view),
&widget->style->base[gtk_widget_get_state (widget)]);
if (GTK_IS_ENTRY (GTK_BIN (combo_box)->child))
g_object_set (GTK_BIN (combo_box)->child, "shadow-type",
GTK_SHADOW_NONE == priv->shadow_type ?
GTK_SHADOW_IN : GTK_SHADOW_NONE, NULL);
}
static void
gtk_combo_box_button_toggled (GtkWidget *widget,
gpointer data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (data);
if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (widget)))
{
if (!combo_box->priv->popup_in_progress)
gtk_combo_box_popup (combo_box);
}
else
gtk_combo_box_popdown (combo_box);
}
static void
gtk_combo_box_add (GtkContainer *container,
GtkWidget *widget)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (container);
GtkComboBoxPrivate *priv = combo_box->priv;
if (priv->has_entry && !GTK_IS_ENTRY (widget))
{
g_warning ("Attempting to add a widget with type %s to a GtkComboBox that needs an entry "
"(need an instance of GtkEntry or of a subclass)",
G_OBJECT_TYPE_NAME (widget));
return;
}
if (priv->cell_view &&
gtk_widget_get_parent (priv->cell_view))
{
gtk_widget_unparent (priv->cell_view);
GTK_BIN (container)->child = NULL;
gtk_widget_queue_resize (GTK_WIDGET (container));
}
gtk_widget_set_parent (widget, GTK_WIDGET (container));
GTK_BIN (container)->child = widget;
if (priv->cell_view &&
widget != priv->cell_view)
{
/* since the cell_view was unparented, it's gone now */
priv->cell_view = NULL;
if (!priv->tree_view && priv->separator)
{
gtk_container_remove (GTK_CONTAINER (priv->separator->parent),
priv->separator);
priv->separator = NULL;
gtk_widget_queue_resize (GTK_WIDGET (container));
}
else if (priv->cell_view_frame)
{
gtk_widget_unparent (priv->cell_view_frame);
priv->cell_view_frame = NULL;
priv->box = NULL;
}
}
if (priv->has_entry)
{
/* this flag is a hack to tell the entry to fill its allocation.
*/
GTK_ENTRY (widget)->is_cell_renderer = TRUE;
g_signal_connect (widget, "changed",
G_CALLBACK (gtk_combo_box_entry_contents_changed),
combo_box);
gtk_entry_set_has_frame (GTK_ENTRY (widget), priv->has_frame);
}
}
static void
gtk_combo_box_remove (GtkContainer *container,
GtkWidget *widget)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (container);
GtkComboBoxPrivate *priv = combo_box->priv;
GtkTreePath *path;
gboolean appears_as_list;
if (priv->has_entry)
{
GtkWidget *child_widget;
child_widget = gtk_bin_get_child (GTK_BIN (container));
if (widget && widget == child_widget)
{
g_signal_handlers_disconnect_by_func (widget,
gtk_combo_box_entry_contents_changed,
container);
GTK_ENTRY (widget)->is_cell_renderer = FALSE;
}
}
if (widget == priv->cell_view)
priv->cell_view = NULL;
gtk_widget_unparent (widget);
GTK_BIN (container)->child = NULL;
if (GTK_OBJECT_FLAGS (combo_box) & GTK_IN_DESTRUCTION)
return;
gtk_widget_queue_resize (GTK_WIDGET (container));
if (!priv->tree_view)
appears_as_list = FALSE;
else
appears_as_list = TRUE;
if (appears_as_list)
gtk_combo_box_list_destroy (combo_box);
else if (GTK_IS_MENU (priv->popup_widget))
{
gtk_combo_box_menu_destroy (combo_box);
gtk_menu_detach (GTK_MENU (priv->popup_widget));
priv->popup_widget = NULL;
}
if (!priv->cell_view)
{
priv->cell_view = gtk_cell_view_new ();
gtk_widget_set_parent (priv->cell_view, GTK_WIDGET (container));
GTK_BIN (container)->child = priv->cell_view;
gtk_widget_show (priv->cell_view);
gtk_cell_view_set_model (GTK_CELL_VIEW (priv->cell_view),
priv->model);
gtk_combo_box_sync_cells (combo_box, GTK_CELL_LAYOUT (priv->cell_view));
}
if (appears_as_list)
gtk_combo_box_list_setup (combo_box);
else
gtk_combo_box_menu_setup (combo_box, TRUE);
if (gtk_tree_row_reference_valid (priv->active_row))
{
path = gtk_tree_row_reference_get_path (priv->active_row);
gtk_combo_box_set_active_internal (combo_box, path);
gtk_tree_path_free (path);
}
else
gtk_combo_box_set_active_internal (combo_box, NULL);
}
static ComboCellInfo *
gtk_combo_box_get_cell_info (GtkComboBox *combo_box,
GtkCellRenderer *cell)
{
GSList *i;
for (i = combo_box->priv->cells; i; i = i->next)
{
ComboCellInfo *info = (ComboCellInfo *)i->data;
if (info && info->cell == cell)
return info;
}
return NULL;
}
static void
gtk_combo_box_menu_show (GtkWidget *menu,
gpointer user_data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (user_data);
GtkComboBoxPrivate *priv = combo_box->priv;
gtk_combo_box_child_show (menu, user_data);
priv->popup_in_progress = TRUE;
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (priv->button),
TRUE);
priv->popup_in_progress = FALSE;
}
static void
gtk_combo_box_menu_hide (GtkWidget *menu,
gpointer user_data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (user_data);
gtk_combo_box_child_hide (menu,user_data);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (combo_box->priv->button),
FALSE);
}
static void
gtk_combo_box_detacher (GtkWidget *widget,
GtkMenu *menu)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (widget);
GtkComboBoxPrivate *priv = combo_box->priv;
g_return_if_fail (priv->popup_widget == (GtkWidget *) menu);
g_signal_handlers_disconnect_by_func (menu->toplevel,
gtk_combo_box_menu_show,
combo_box);
g_signal_handlers_disconnect_by_func (menu->toplevel,
gtk_combo_box_menu_hide,
combo_box);
priv->popup_widget = NULL;
}
static void
gtk_combo_box_set_popup_widget (GtkComboBox *combo_box,
GtkWidget *popup)
{
GtkComboBoxPrivate *priv = combo_box->priv;
if (GTK_IS_MENU (priv->popup_widget))
{
gtk_menu_detach (GTK_MENU (priv->popup_widget));
priv->popup_widget = NULL;
}
else if (priv->popup_widget)
{
gtk_container_remove (GTK_CONTAINER (priv->scrolled_window),
priv->popup_widget);
g_object_unref (priv->popup_widget);
priv->popup_widget = NULL;
}
if (GTK_IS_MENU (popup))
{
if (priv->popup_window)
{
gtk_widget_destroy (priv->popup_window);
priv->popup_window = NULL;
}
priv->popup_widget = popup;
/*
* Note that we connect to show/hide on the toplevel, not the
* menu itself, since the menu is not shown/hidden when it is
* popped up while torn-off.
*/
g_signal_connect (GTK_MENU (popup)->toplevel, "show",
G_CALLBACK (gtk_combo_box_menu_show), combo_box);
g_signal_connect (GTK_MENU (popup)->toplevel, "hide",
G_CALLBACK (gtk_combo_box_menu_hide), combo_box);
gtk_menu_attach_to_widget (GTK_MENU (popup),
GTK_WIDGET (combo_box),
gtk_combo_box_detacher);
}
else
{
if (!priv->popup_window)
{
GtkWidget *toplevel;
priv->popup_window = gtk_window_new (GTK_WINDOW_POPUP);
gtk_widget_set_name (priv->popup_window, "gtk-combobox-popup-window");
gtk_window_set_type_hint (GTK_WINDOW (priv->popup_window),
GDK_WINDOW_TYPE_HINT_COMBO);
g_signal_connect (GTK_WINDOW (priv->popup_window),"show",
G_CALLBACK (gtk_combo_box_child_show),
combo_box);
g_signal_connect (GTK_WINDOW (priv->popup_window),"hide",
G_CALLBACK (gtk_combo_box_child_hide),
combo_box);
toplevel = gtk_widget_get_toplevel (GTK_WIDGET (combo_box));
if (GTK_IS_WINDOW (toplevel))
{
gtk_window_group_add_window (gtk_window_get_group (GTK_WINDOW (toplevel)),
GTK_WINDOW (priv->popup_window));
gtk_window_set_transient_for (GTK_WINDOW (priv->popup_window),
GTK_WINDOW (toplevel));
}
gtk_window_set_resizable (GTK_WINDOW (priv->popup_window), FALSE);
gtk_window_set_screen (GTK_WINDOW (priv->popup_window),
gtk_widget_get_screen (GTK_WIDGET (combo_box)));
priv->scrolled_window = gtk_scrolled_window_new (NULL, NULL);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->scrolled_window),
GTK_POLICY_NEVER,
GTK_POLICY_NEVER);
gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (priv->scrolled_window),
GTK_SHADOW_IN);
gtk_widget_show (priv->scrolled_window);
gtk_container_add (GTK_CONTAINER (priv->popup_window),
priv->scrolled_window);
}
gtk_container_add (GTK_CONTAINER (priv->scrolled_window),
popup);
gtk_widget_show (popup);
g_object_ref (popup);
priv->popup_widget = popup;
}
}
static void
gtk_combo_box_menu_position_below (GtkMenu *menu,
gint *x,
gint *y,
gint *push_in,
gpointer user_data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (user_data);
gint sx, sy;
GtkWidget *child;
GtkRequisition req;
GdkScreen *screen;
gint monitor_num;
GdkRectangle monitor;
/* FIXME: is using the size request here broken? */
child = GTK_BIN (combo_box)->child;
sx = sy = 0;
if (!gtk_widget_get_has_window (child))
{
sx += child->allocation.x;
sy += child->allocation.y;
}
gdk_window_get_root_coords (child->window, sx, sy, &sx, &sy);
if (GTK_SHADOW_NONE != combo_box->priv->shadow_type)
sx -= GTK_WIDGET (combo_box)->style->xthickness;
gtk_widget_size_request (GTK_WIDGET (menu), &req);
if (gtk_widget_get_direction (GTK_WIDGET (combo_box)) == GTK_TEXT_DIR_LTR)
*x = sx;
else
*x = sx + child->allocation.width - req.width;
*y = sy;
screen = gtk_widget_get_screen (GTK_WIDGET (combo_box));
monitor_num = gdk_screen_get_monitor_at_window (screen,
GTK_WIDGET (combo_box)->window);
gdk_screen_get_monitor_geometry (screen, monitor_num, &monitor);
if (*x < monitor.x)
*x = monitor.x;
else if (*x + req.width > monitor.x + monitor.width)
*x = monitor.x + monitor.width - req.width;
if (monitor.y + monitor.height - *y - child->allocation.height >= req.height)
*y += child->allocation.height;
else if (*y - monitor.y >= req.height)
*y -= req.height;
else if (monitor.y + monitor.height - *y - child->allocation.height > *y - monitor.y)
*y += child->allocation.height;
else
*y -= req.height;
*push_in = FALSE;
}
static void
gtk_combo_box_menu_position_over (GtkMenu *menu,
gint *x,
gint *y,
gboolean *push_in,
gpointer user_data)
{
GtkComboBox *combo_box;
GtkWidget *active;
GtkWidget *child;
GtkWidget *widget;
GtkRequisition requisition;
GList *children;
gint screen_width;
gint menu_xpos;
gint menu_ypos;
gint menu_width;
combo_box = GTK_COMBO_BOX (user_data);
widget = GTK_WIDGET (combo_box);
gtk_widget_get_child_requisition (GTK_WIDGET (menu), &requisition);
menu_width = requisition.width;
active = gtk_menu_get_active (GTK_MENU (combo_box->priv->popup_widget));
menu_xpos = widget->allocation.x;
menu_ypos = widget->allocation.y + widget->allocation.height / 2 - 2;
if (active != NULL)
{
gtk_widget_get_child_requisition (active, &requisition);
menu_ypos -= requisition.height / 2;
}
children = GTK_MENU_SHELL (combo_box->priv->popup_widget)->children;
while (children)
{
child = children->data;
if (active == child)
break;
if (gtk_widget_get_visible (child))
{
gtk_widget_get_child_requisition (child, &requisition);
menu_ypos -= requisition.height;
}
children = children->next;
}
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
menu_xpos = menu_xpos + widget->allocation.width - menu_width;
gdk_window_get_root_coords (widget->window, menu_xpos, menu_ypos,
&menu_xpos, &menu_ypos);
/* Clamp the position on screen */
screen_width = gdk_screen_get_width (gtk_widget_get_screen (widget));
if (menu_xpos < 0)
menu_xpos = 0;
else if ((menu_xpos + menu_width) > screen_width)
menu_xpos -= ((menu_xpos + menu_width) - screen_width);
*x = menu_xpos;
*y = menu_ypos;
*push_in = TRUE;
}
static void
gtk_combo_box_menu_position (GtkMenu *menu,
gint *x,
gint *y,
gint *push_in,
gpointer user_data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (user_data);
GtkComboBoxPrivate *priv = combo_box->priv;
GtkWidget *menu_item;
if (priv->wrap_width > 0 || priv->cell_view == NULL)
gtk_combo_box_menu_position_below (menu, x, y, push_in, user_data);
else
{
/* FIXME handle nested menus better */
menu_item = gtk_menu_get_active (GTK_MENU (priv->popup_widget));
if (menu_item)
gtk_menu_shell_select_item (GTK_MENU_SHELL (priv->popup_widget),
menu_item);
gtk_combo_box_menu_position_over (menu, x, y, push_in, user_data);
}
if (!gtk_widget_get_visible (GTK_MENU (priv->popup_widget)->toplevel))
gtk_window_set_type_hint (GTK_WINDOW (GTK_MENU (priv->popup_widget)->toplevel),
GDK_WINDOW_TYPE_HINT_COMBO);
}
static void
gtk_combo_box_list_position (GtkComboBox *combo_box,
gint *x,
gint *y,
gint *width,
gint *height)
{
GtkComboBoxPrivate *priv = combo_box->priv;
GdkScreen *screen;
gint monitor_num;
GdkRectangle monitor;
GtkRequisition popup_req;
GtkPolicyType hpolicy, vpolicy;
/* under windows, the drop down list is as wide as the combo box itself.
see bug #340204 */
GtkWidget *sample = GTK_WIDGET (combo_box);
*x = *y = 0;
if (!gtk_widget_get_has_window (sample))
{
*x += sample->allocation.x;
*y += sample->allocation.y;
}
gdk_window_get_root_coords (sample->window, *x, *y, x, y);
*width = sample->allocation.width;
hpolicy = vpolicy = GTK_POLICY_NEVER;
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->scrolled_window),
hpolicy, vpolicy);
gtk_widget_size_request (priv->scrolled_window, &popup_req);
if (popup_req.width > *width)
{
hpolicy = GTK_POLICY_ALWAYS;
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->scrolled_window),
hpolicy, vpolicy);
gtk_widget_size_request (priv->scrolled_window, &popup_req);
}
*height = popup_req.height;
screen = gtk_widget_get_screen (GTK_WIDGET (combo_box));
monitor_num = gdk_screen_get_monitor_at_window (screen,
GTK_WIDGET (combo_box)->window);
gdk_screen_get_monitor_geometry (screen, monitor_num, &monitor);
if (*x < monitor.x)
*x = monitor.x;
else if (*x + *width > monitor.x + monitor.width)
*x = monitor.x + monitor.width - *width;
if (*y + sample->allocation.height + *height <= monitor.y + monitor.height)
*y += sample->allocation.height;
else if (*y - *height >= monitor.y)
*y -= *height;
else if (monitor.y + monitor.height - (*y + sample->allocation.height) > *y - monitor.y)
{
*y += sample->allocation.height;
*height = monitor.y + monitor.height - *y;
}
else
{
*height = *y - monitor.y;
*y = monitor.y;
}
if (popup_req.height > *height)
{
vpolicy = GTK_POLICY_ALWAYS;
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->scrolled_window),
hpolicy, vpolicy);
}
}
static gboolean
cell_view_is_sensitive (GtkCellView *cell_view)
{
GList *cells, *list;
gboolean sensitive;
cells = gtk_cell_layout_get_cells (GTK_CELL_LAYOUT (cell_view));
sensitive = FALSE;
for (list = cells; list; list = list->next)
{
g_object_get (list->data, "sensitive", &sensitive, NULL);
if (sensitive)
break;
}
g_list_free (cells);
return sensitive;
}
static gboolean
tree_column_row_is_sensitive (GtkComboBox *combo_box,
GtkTreeIter *iter)
{
GtkComboBoxPrivate *priv = combo_box->priv;
GList *cells, *list;
gboolean sensitive;
if (!priv->column)
return TRUE;
if (priv->row_separator_func)
{
if (priv->row_separator_func (priv->model, iter,
priv->row_separator_data))
return FALSE;
}
gtk_tree_view_column_cell_set_cell_data (priv->column,
priv->model,
iter, FALSE, FALSE);
cells = gtk_cell_layout_get_cells (GTK_CELL_LAYOUT (priv->column));
sensitive = FALSE;
for (list = cells; list; list = list->next)
{
g_object_get (list->data, "sensitive", &sensitive, NULL);
if (sensitive)
break;
}
g_list_free (cells);
return sensitive;
}
static void
update_menu_sensitivity (GtkComboBox *combo_box,
GtkWidget *menu)
{
GtkComboBoxPrivate *priv = combo_box->priv;
GList *children, *child;
GtkWidget *item, *submenu, *separator;
GtkWidget *cell_view;
gboolean sensitive;
if (!priv->model)
return;
children = gtk_container_get_children (GTK_CONTAINER (menu));
for (child = children; child; child = child->next)
{
item = GTK_WIDGET (child->data);
cell_view = GTK_BIN (item)->child;
if (!GTK_IS_CELL_VIEW (cell_view))
continue;
submenu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (item));
if (submenu != NULL)
{
gtk_widget_set_sensitive (item, TRUE);
update_menu_sensitivity (combo_box, submenu);
}
else
{
sensitive = cell_view_is_sensitive (GTK_CELL_VIEW (cell_view));
if (menu != priv->popup_widget && child == children)
{
separator = GTK_WIDGET (child->next->data);
g_object_set (item, "visible", sensitive, NULL);
g_object_set (separator, "visible", sensitive, NULL);
}
else
gtk_widget_set_sensitive (item, sensitive);
}
}
g_list_free (children);
}
static void
gtk_combo_box_menu_popup (GtkComboBox *combo_box,
guint button,
guint32 activate_time)
{
GtkComboBoxPrivate *priv = combo_box->priv;
GtkTreePath *path;
gint active_item;
GtkRequisition requisition;
gint width;
update_menu_sensitivity (combo_box, priv->popup_widget);
active_item = -1;
if (gtk_tree_row_reference_valid (priv->active_row))
{
path = gtk_tree_row_reference_get_path (priv->active_row);
active_item = gtk_tree_path_get_indices (path)[0];
gtk_tree_path_free (path);
if (priv->add_tearoffs)
active_item++;
}
/* FIXME handle nested menus better */
gtk_menu_set_active (GTK_MENU (priv->popup_widget), active_item);
if (priv->wrap_width == 0)
{
width = GTK_WIDGET (combo_box)->allocation.width;
gtk_widget_set_size_request (priv->popup_widget, -1, -1);
gtk_widget_size_request (priv->popup_widget, &requisition);
gtk_widget_set_size_request (priv->popup_widget,
MAX (width, requisition.width), -1);
}
gtk_menu_popup (GTK_MENU (priv->popup_widget),
NULL, NULL,
gtk_combo_box_menu_position, combo_box,
button, activate_time);
}
static gboolean
popup_grab_on_window (GdkWindow *window,
guint32 activate_time,
gboolean grab_keyboard)
{
if ((gdk_pointer_grab (window, TRUE,
GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
GDK_POINTER_MOTION_MASK,
NULL, NULL, activate_time) == 0))
{
if (!grab_keyboard ||
gdk_keyboard_grab (window, TRUE,
activate_time) == 0)
return TRUE;
else
{
gdk_display_pointer_ungrab (gdk_window_get_display (window),
activate_time);
return FALSE;
}
}
return FALSE;
}
/**
* gtk_combo_box_popup:
* @combo_box: a #GtkComboBox
*
* Pops up the menu or dropdown list of @combo_box.
*
* This function is mostly intended for use by accessibility technologies;
* applications should have little use for it.
*
* Since: 2.4
*/
void
gtk_combo_box_popup (GtkComboBox *combo_box)
{
g_return_if_fail (GTK_IS_COMBO_BOX (combo_box));
g_signal_emit (combo_box, combo_box_signals[POPUP], 0);
}
static void
gtk_combo_box_real_popup (GtkComboBox *combo_box)
{
GtkComboBoxPrivate *priv = combo_box->priv;
gint x, y, width, height;
GtkTreePath *path = NULL, *ppath;
GtkWidget *toplevel;
if (!gtk_widget_get_realized (GTK_WIDGET (combo_box)))
return;
if (gtk_widget_get_mapped (priv->popup_widget))
return;
if (GTK_IS_MENU (priv->popup_widget))
{
gtk_combo_box_menu_popup (combo_box,
priv->activate_button,
priv->activate_time);
return;
}
toplevel = gtk_widget_get_toplevel (GTK_WIDGET (combo_box));
if (GTK_IS_WINDOW (toplevel))
gtk_window_group_add_window (gtk_window_get_group (GTK_WINDOW (toplevel)),
GTK_WINDOW (priv->popup_window));
gtk_widget_show_all (priv->scrolled_window);
gtk_combo_box_list_position (combo_box, &x, &y, &width, &height);
gtk_widget_set_size_request (priv->popup_window, width, height);
gtk_window_move (GTK_WINDOW (priv->popup_window), x, y);
if (gtk_tree_row_reference_valid (priv->active_row))
{
path = gtk_tree_row_reference_get_path (priv->active_row);
ppath = gtk_tree_path_copy (path);
if (gtk_tree_path_up (ppath))
gtk_tree_view_expand_to_path (GTK_TREE_VIEW (priv->tree_view),
ppath);
gtk_tree_path_free (ppath);
}
gtk_tree_view_set_hover_expand (GTK_TREE_VIEW (priv->tree_view),
TRUE);
/* popup */
gtk_widget_show (priv->popup_window);
if (path)
{
gtk_tree_view_set_cursor (GTK_TREE_VIEW (priv->tree_view),
path, NULL, FALSE);
gtk_tree_path_free (path);
}
gtk_widget_grab_focus (priv->popup_window);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (priv->button),
TRUE);
if (!gtk_widget_has_focus (priv->tree_view))
gtk_widget_grab_focus (priv->tree_view);
if (!popup_grab_on_window (priv->popup_window->window,
GDK_CURRENT_TIME, TRUE))
{
gtk_widget_hide (priv->popup_window);
return;
}
gtk_grab_add (priv->popup_window);
}
static gboolean
gtk_combo_box_real_popdown (GtkComboBox *combo_box)
{
if (combo_box->priv->popup_shown)
{
gtk_combo_box_popdown (combo_box);
return TRUE;
}
return FALSE;
}
/**
* gtk_combo_box_popdown:
* @combo_box: a #GtkComboBox
*
* Hides the menu or dropdown list of @combo_box.
*
* This function is mostly intended for use by accessibility technologies;
* applications should have little use for it.
*
* Since: 2.4
*/
void
gtk_combo_box_popdown (GtkComboBox *combo_box)
{
GtkComboBoxPrivate *priv = combo_box->priv;
g_return_if_fail (GTK_IS_COMBO_BOX (combo_box));
if (GTK_IS_MENU (priv->popup_widget))
{
gtk_menu_popdown (GTK_MENU (priv->popup_widget));
return;
}
if (!gtk_widget_get_realized (GTK_WIDGET (combo_box)))
return;
gtk_grab_remove (priv->popup_window);
gtk_widget_hide_all (priv->popup_window);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (priv->button),
FALSE);
}
static gint
gtk_combo_box_calc_requested_width (GtkComboBox *combo_box,
GtkTreePath *path)
{
GtkComboBoxPrivate *priv = combo_box->priv;
gint padding;
GtkRequisition req;
if (priv->cell_view)
gtk_widget_style_get (priv->cell_view,
"focus-line-width", &padding,
NULL);
else
padding = 0;
/* add some pixels for good measure */
padding += BONUS_PADDING;
if (priv->cell_view)
gtk_cell_view_get_size_of_row (GTK_CELL_VIEW (priv->cell_view),
path, &req);
else
req.width = 0;
return req.width + padding;
}
static void
gtk_combo_box_remeasure (GtkComboBox *combo_box)
{
GtkComboBoxPrivate *priv = combo_box->priv;
GtkTreeIter iter;
GtkTreePath *path;
if (!priv->model ||
!gtk_tree_model_get_iter_first (priv->model, &iter))
return;
priv->width = 0;
priv->height = 0;
path = gtk_tree_path_new_from_indices (0, -1);
do
{
GtkRequisition req;
if (priv->cell_view)
gtk_cell_view_get_size_of_row (GTK_CELL_VIEW (priv->cell_view),
path, &req);
else
{
req.width = 0;
req.height = 0;
}
priv->width = MAX (priv->width, req.width);
priv->height = MAX (priv->height, req.height);
gtk_tree_path_next (path);
}
while (gtk_tree_model_iter_next (priv->model, &iter));
gtk_tree_path_free (path);
}
static void
gtk_combo_box_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
gint width, height;
gint focus_width, focus_pad;
gint font_size;
gint arrow_size;
GtkRequisition bin_req;
PangoContext *context;
PangoFontMetrics *metrics;
PangoFontDescription *font_desc;
GtkComboBox *combo_box = GTK_COMBO_BOX (widget);
GtkComboBoxPrivate *priv = combo_box->priv;
/* common */
gtk_widget_size_request (GTK_BIN (widget)->child, &bin_req);
gtk_combo_box_remeasure (combo_box);
bin_req.width = MAX (bin_req.width, priv->width);
bin_req.height = MAX (bin_req.height, priv->height);
gtk_widget_style_get (GTK_WIDGET (widget),
"focus-line-width", &focus_width,
"focus-padding", &focus_pad,
"arrow-size", &arrow_size,
NULL);
font_desc = GTK_BIN (widget)->child->style->font_desc;
context = gtk_widget_get_pango_context (widget);
metrics = pango_context_get_metrics (context, font_desc,
pango_context_get_language (context));
font_size = PANGO_PIXELS (pango_font_metrics_get_ascent (metrics) +
pango_font_metrics_get_descent (metrics));
pango_font_metrics_unref (metrics);
arrow_size = MAX (arrow_size, font_size);
gtk_widget_set_size_request (priv->arrow, arrow_size, arrow_size);
if (!priv->tree_view)
{
/* menu mode */
if (priv->cell_view)
{
GtkRequisition button_req, sep_req, arrow_req;
gint border_width, xthickness, ythickness;
gtk_widget_size_request (priv->button, &button_req);
border_width = GTK_CONTAINER (combo_box)->border_width;
xthickness = priv->button->style->xthickness;
ythickness = priv->button->style->ythickness;
bin_req.width = MAX (bin_req.width, priv->width);
bin_req.height = MAX (bin_req.height, priv->height);
gtk_widget_size_request (priv->separator, &sep_req);
gtk_widget_size_request (priv->arrow, &arrow_req);
height = MAX (sep_req.height, arrow_req.height);
height = MAX (height, bin_req.height);
width = bin_req.width + sep_req.width + arrow_req.width;
height += 2*(border_width + ythickness + focus_width + focus_pad);
width += 2*(border_width + xthickness + focus_width + focus_pad);
requisition->width = width;
requisition->height = height;
}
else
{
GtkRequisition but_req;
gtk_widget_size_request (priv->button, &but_req);
requisition->width = bin_req.width + but_req.width;
requisition->height = MAX (bin_req.height, but_req.height);
}
}
else
{
/* list mode */
GtkRequisition button_req, frame_req;
/* sample + frame */
*requisition = bin_req;
requisition->width += 2 * focus_width;
if (priv->cell_view_frame)
{
gtk_widget_size_request (priv->cell_view_frame, &frame_req);
if (priv->has_frame)
{
requisition->width += 2 *
(GTK_CONTAINER (priv->cell_view_frame)->border_width +
GTK_WIDGET (priv->cell_view_frame)->style->xthickness);
requisition->height += 2 *
(GTK_CONTAINER (priv->cell_view_frame)->border_width +
GTK_WIDGET (priv->cell_view_frame)->style->ythickness);
}
}
/* the button */
gtk_widget_size_request (priv->button, &button_req);
requisition->height = MAX (requisition->height, button_req.height);
requisition->width += button_req.width;
}
if (GTK_SHADOW_NONE != priv->shadow_type)
{
requisition->height += 2 * widget->style->ythickness;
requisition->width += 2 * widget->style->xthickness;
}
}
#define GTK_COMBO_BOX_SIZE_ALLOCATE_BUTTON \
gtk_widget_size_request (combo_box->priv->button, &req); \
\
if (is_rtl) \
child.x = allocation->x + shadow_width; \
else \
child.x = allocation->x + allocation->width - req.width - shadow_width; \
\
child.y = allocation->y + shadow_height; \
child.width = req.width; \
child.height = allocation->height - 2 * shadow_height; \
child.width = MAX (1, child.width); \
child.height = MAX (1, child.height); \
\
gtk_widget_size_allocate (combo_box->priv->button, &child);
static void
gtk_combo_box_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (widget);
GtkComboBoxPrivate *priv = combo_box->priv;
gint shadow_width, shadow_height;
gint focus_width, focus_pad;
GtkAllocation child;
GtkRequisition req;
gboolean is_rtl = gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL;
widget->allocation = *allocation;
gtk_widget_style_get (GTK_WIDGET (widget),
"focus-line-width", &focus_width,
"focus-padding", &focus_pad,
NULL);
if (GTK_SHADOW_NONE != priv->shadow_type)
{
shadow_width = widget->style->xthickness;
shadow_height = widget->style->ythickness;
}
else
{
shadow_width = 0;
shadow_height = 0;
}
if (!priv->tree_view)
{
if (priv->cell_view)
{
gint border_width, xthickness, ythickness;
gint width;
/* menu mode */
allocation->x += shadow_width;
allocation->y += shadow_height;
allocation->width -= 2 * shadow_width;
allocation->height -= 2 * shadow_height;
gtk_widget_size_allocate (priv->button, allocation);
/* set some things ready */
border_width = GTK_CONTAINER (priv->button)->border_width;
xthickness = priv->button->style->xthickness;
ythickness = priv->button->style->ythickness;
child.x = allocation->x;
child.y = allocation->y;
width = allocation->width;
child.height = allocation->height;
if (!priv->is_cell_renderer)
{
child.x += border_width + xthickness + focus_width + focus_pad;
child.y += border_width + ythickness + focus_width + focus_pad;
width -= 2 * (child.x - allocation->x);
child.height -= 2 * (child.y - allocation->y);
}
/* handle the children */
gtk_widget_size_request (priv->arrow, &req);
child.width = req.width;
if (!is_rtl)
child.x += width - req.width;
child.width = MAX (1, child.width);
child.height = MAX (1, child.height);
gtk_widget_size_allocate (priv->arrow, &child);
if (is_rtl)
child.x += req.width;
gtk_widget_size_request (priv->separator, &req);
child.width = req.width;
if (!is_rtl)
child.x -= req.width;
child.width = MAX (1, child.width);
child.height = MAX (1, child.height);
gtk_widget_size_allocate (priv->separator, &child);
if (is_rtl)
{
child.x += req.width;
child.width = allocation->x + allocation->width
- (border_width + xthickness + focus_width + focus_pad)
- child.x;
}
else
{
child.width = child.x;
child.x = allocation->x
+ border_width + xthickness + focus_width + focus_pad;
child.width -= child.x;
}
if (gtk_widget_get_visible (priv->popup_widget))
{
gint width;
GtkRequisition requisition;
/* Warning here, without the check in the position func */
gtk_menu_reposition (GTK_MENU (priv->popup_widget));
if (priv->wrap_width == 0)
{
width = GTK_WIDGET (combo_box)->allocation.width;
gtk_widget_set_size_request (priv->popup_widget, -1, -1);
gtk_widget_size_request (priv->popup_widget, &requisition);
gtk_widget_set_size_request (priv->popup_widget,
MAX (width, requisition.width), -1);
}
}
child.width = MAX (1, child.width);
child.height = MAX (1, child.height);
gtk_widget_size_allocate (GTK_BIN (widget)->child, &child);
}
else
{
GTK_COMBO_BOX_SIZE_ALLOCATE_BUTTON
if (is_rtl)
child.x = allocation->x + req.width + shadow_width;
else
child.x = allocation->x + shadow_width;
child.y = allocation->y + shadow_height;
child.width = allocation->width - req.width - 2 * shadow_width;
child.width = MAX (1, child.width);
child.height = MAX (1, child.height);
gtk_widget_size_allocate (GTK_BIN (widget)->child, &child);
}
}
else
{
/* list mode */
/* Combobox thickness + border-width */
int delta_x = shadow_width + GTK_CONTAINER (widget)->border_width;
int delta_y = shadow_height + GTK_CONTAINER (widget)->border_width;
/* button */
GTK_COMBO_BOX_SIZE_ALLOCATE_BUTTON
/* frame */
if (is_rtl)
child.x = allocation->x + req.width;
else
child.x = allocation->x;
child.y = allocation->y;
child.width = allocation->width - req.width;
child.height = allocation->height;
if (priv->cell_view_frame)
{
child.x += delta_x;
child.y += delta_y;
child.width = MAX (1, child.width - delta_x * 2);
child.height = MAX (1, child.height - delta_y * 2);
gtk_widget_size_allocate (priv->cell_view_frame, &child);
/* the sample */
if (priv->has_frame)
{
delta_x = GTK_CONTAINER (priv->cell_view_frame)->border_width +
GTK_WIDGET (priv->cell_view_frame)->style->xthickness;
delta_y = GTK_CONTAINER (priv->cell_view_frame)->border_width +
GTK_WIDGET (priv->cell_view_frame)->style->ythickness;
child.x += delta_x;
child.y += delta_y;
child.width -= delta_x * 2;
child.height -= delta_y * 2;
}
}
else
{
child.x += delta_x;
child.y += delta_y;
child.width -= delta_x * 2;
child.height -= delta_y * 2;
}
if (gtk_widget_get_visible (priv->popup_window))
{
gint x, y, width, height;
gtk_combo_box_list_position (combo_box, &x, &y, &width, &height);
gtk_window_move (GTK_WINDOW (priv->popup_window), x, y);
gtk_widget_set_size_request (priv->popup_window, width, height);
}
child.width = MAX (1, child.width);
child.height = MAX (1, child.height);
gtk_widget_size_allocate (GTK_BIN (combo_box)->child, &child);
}
}
#undef GTK_COMBO_BOX_ALLOCATE_BUTTON
static void
gtk_combo_box_unset_model (GtkComboBox *combo_box)
{
GtkComboBoxPrivate *priv = combo_box->priv;
if (priv->model)
{
g_signal_handler_disconnect (priv->model,
priv->inserted_id);
g_signal_handler_disconnect (priv->model,
priv->deleted_id);
g_signal_handler_disconnect (priv->model,
priv->reordered_id);
g_signal_handler_disconnect (priv->model,
priv->changed_id);
}
/* menu mode */
if (!priv->tree_view)
{
if (priv->popup_widget)
gtk_container_foreach (GTK_CONTAINER (priv->popup_widget),
(GtkCallback)gtk_widget_destroy, NULL);
}
if (priv->model)
{
g_object_unref (priv->model);
priv->model = NULL;
}
if (priv->active_row)
{
gtk_tree_row_reference_free (priv->active_row);
priv->active_row = NULL;
}
if (priv->cell_view)
gtk_cell_view_set_model (GTK_CELL_VIEW (priv->cell_view), NULL);
}
static void
gtk_combo_box_forall (GtkContainer *container,
gboolean include_internals,
GtkCallback callback,
gpointer callback_data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (container);
GtkComboBoxPrivate *priv = combo_box->priv;
if (include_internals)
{
if (priv->button)
(* callback) (priv->button, callback_data);
if (priv->cell_view_frame)
(* callback) (priv->cell_view_frame, callback_data);
}
if (GTK_BIN (container)->child)
(* callback) (GTK_BIN (container)->child, callback_data);
}
static void
gtk_combo_box_child_show (GtkWidget *widget,
GtkComboBox *combo_box)
{
GtkComboBoxPrivate *priv = combo_box->priv;
priv->popup_shown = TRUE;
g_object_notify (G_OBJECT (combo_box), "popup-shown");
}
static void
gtk_combo_box_child_hide (GtkWidget *widget,
GtkComboBox *combo_box)
{
GtkComboBoxPrivate *priv = combo_box->priv;
priv->popup_shown = FALSE;
g_object_notify (G_OBJECT (combo_box), "popup-shown");
}
static gboolean
gtk_combo_box_expose_event (GtkWidget *widget,
GdkEventExpose *event)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (widget);
GtkComboBoxPrivate *priv = combo_box->priv;
if (gtk_widget_is_drawable (widget) &&
GTK_SHADOW_NONE != priv->shadow_type)
{
gtk_paint_shadow (widget->style, widget->window,
GTK_STATE_NORMAL, priv->shadow_type,
NULL, widget, "combobox",
widget->allocation.x, widget->allocation.y,
widget->allocation.width, widget->allocation.height);
}
gtk_container_propagate_expose (GTK_CONTAINER (widget),
priv->button, event);
if (priv->tree_view && priv->cell_view_frame)
{
gtk_container_propagate_expose (GTK_CONTAINER (widget),
priv->cell_view_frame, event);
}
gtk_container_propagate_expose (GTK_CONTAINER (widget),
GTK_BIN (widget)->child, event);
return FALSE;
}
typedef struct {
GtkComboBox *combo;
GtkTreePath *path;
GtkTreeIter iter;
gboolean found;
gboolean set;
gboolean visible;
} SearchData;
static gboolean
path_visible (GtkTreeView *view,
GtkTreePath *path)
{
GtkRBTree *tree;
GtkRBNode *node;
/* Note that we rely on the fact that collapsed rows don't have nodes
*/
return _gtk_tree_view_find_node (view, path, &tree, &node);
}
static gboolean
tree_next_func (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data)
{
SearchData *search_data = (SearchData *)data;
if (search_data->found)
{
if (!tree_column_row_is_sensitive (search_data->combo, iter))
return FALSE;
if (search_data->visible &&
!path_visible (GTK_TREE_VIEW (search_data->combo->priv->tree_view), path))
return FALSE;
search_data->set = TRUE;
search_data->iter = *iter;
return TRUE;
}
if (gtk_tree_path_compare (path, search_data->path) == 0)
search_data->found = TRUE;
return FALSE;
}
static gboolean
tree_next (GtkComboBox *combo,
GtkTreeModel *model,
GtkTreeIter *iter,
GtkTreeIter *next,
gboolean visible)
{
SearchData search_data;
search_data.combo = combo;
search_data.path = gtk_tree_model_get_path (model, iter);
search_data.visible = visible;
search_data.found = FALSE;
search_data.set = FALSE;
gtk_tree_model_foreach (model, tree_next_func, &search_data);
*next = search_data.iter;
gtk_tree_path_free (search_data.path);
return search_data.set;
}
static gboolean
tree_prev_func (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data)
{
SearchData *search_data = (SearchData *)data;
if (gtk_tree_path_compare (path, search_data->path) == 0)
{
search_data->found = TRUE;
return TRUE;
}
if (!tree_column_row_is_sensitive (search_data->combo, iter))
return FALSE;
if (search_data->visible &&
!path_visible (GTK_TREE_VIEW (search_data->combo->priv->tree_view), path))
return FALSE;
search_data->set = TRUE;
search_data->iter = *iter;
return FALSE;
}
static gboolean
tree_prev (GtkComboBox *combo,
GtkTreeModel *model,
GtkTreeIter *iter,
GtkTreeIter *prev,
gboolean visible)
{
SearchData search_data;
search_data.combo = combo;
search_data.path = gtk_tree_model_get_path (model, iter);
search_data.visible = visible;
search_data.found = FALSE;
search_data.set = FALSE;
gtk_tree_model_foreach (model, tree_prev_func, &search_data);
*prev = search_data.iter;
gtk_tree_path_free (search_data.path);
return search_data.set;
}
static gboolean
tree_last_func (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data)
{
SearchData *search_data = (SearchData *)data;
if (!tree_column_row_is_sensitive (search_data->combo, iter))
return FALSE;
/* Note that we rely on the fact that collapsed rows don't have nodes
*/
if (search_data->visible &&
!path_visible (GTK_TREE_VIEW (search_data->combo->priv->tree_view), path))
return FALSE;
search_data->set = TRUE;
search_data->iter = *iter;
return FALSE;
}
static gboolean
tree_last (GtkComboBox *combo,
GtkTreeModel *model,
GtkTreeIter *last,
gboolean visible)
{
SearchData search_data;
search_data.combo = combo;
search_data.visible = visible;
search_data.set = FALSE;
gtk_tree_model_foreach (model, tree_last_func, &search_data);
*last = search_data.iter;
return search_data.set;
}
static gboolean
tree_first_func (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data)
{
SearchData *search_data = (SearchData *)data;
if (!tree_column_row_is_sensitive (search_data->combo, iter))
return FALSE;
if (search_data->visible &&
!path_visible (GTK_TREE_VIEW (search_data->combo->priv->tree_view), path))
return FALSE;
search_data->set = TRUE;
search_data->iter = *iter;
return TRUE;
}
static gboolean
tree_first (GtkComboBox *combo,
GtkTreeModel *model,
GtkTreeIter *first,
gboolean visible)
{
SearchData search_data;
search_data.combo = combo;
search_data.visible = visible;
search_data.set = FALSE;
gtk_tree_model_foreach (model, tree_first_func, &search_data);
*first = search_data.iter;
return search_data.set;
}
static gboolean
gtk_combo_box_scroll_event (GtkWidget *widget,
GdkEventScroll *event)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (widget);
gboolean found;
GtkTreeIter iter;
GtkTreeIter new_iter;
if (!gtk_combo_box_get_active_iter (combo_box, &iter))
return TRUE;
if (event->direction == GDK_SCROLL_UP)
found = tree_prev (combo_box, combo_box->priv->model,
&iter, &new_iter, FALSE);
else
found = tree_next (combo_box, combo_box->priv->model,
&iter, &new_iter, FALSE);
if (found)
gtk_combo_box_set_active_iter (combo_box, &new_iter);
return TRUE;
}
/*
* menu style
*/
static void
gtk_combo_box_sync_cells (GtkComboBox *combo_box,
GtkCellLayout *cell_layout)
{
GtkComboBoxPrivate *priv = combo_box->priv;
GSList *k;
for (k = priv->cells; k; k = k->next)
{
GSList *j;
ComboCellInfo *info = (ComboCellInfo *)k->data;
if (info->pack == GTK_PACK_START)
gtk_cell_layout_pack_start (cell_layout,
info->cell, info->expand);
else if (info->pack == GTK_PACK_END)
gtk_cell_layout_pack_end (cell_layout,
info->cell, info->expand);
gtk_cell_layout_set_cell_data_func (cell_layout,
info->cell,
combo_cell_data_func, info, NULL);
for (j = info->attributes; j; j = j->next->next)
{
gtk_cell_layout_add_attribute (cell_layout,
info->cell,
j->data,
GPOINTER_TO_INT (j->next->data));
}
}
}
static void
gtk_combo_box_menu_setup (GtkComboBox *combo_box,
gboolean add_children)
{
GtkComboBoxPrivate *priv = combo_box->priv;
GtkWidget *menu;
if (priv->cell_view)
{
priv->button = gtk_toggle_button_new ();
gtk_button_set_focus_on_click (GTK_BUTTON (priv->button),
priv->focus_on_click);
g_signal_connect (priv->button, "toggled",
G_CALLBACK (gtk_combo_box_button_toggled), combo_box);
gtk_widget_set_parent (priv->button,
GTK_BIN (combo_box)->child->parent);
priv->box = gtk_hbox_new (FALSE, 0);
gtk_container_add (GTK_CONTAINER (priv->button), priv->box);
priv->separator = gtk_vseparator_new ();
gtk_container_add (GTK_CONTAINER (priv->box), priv->separator);
priv->arrow = gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_NONE);
gtk_container_add (GTK_CONTAINER (priv->box), priv->arrow);
gtk_widget_show_all (priv->button);
}
else
{
priv->button = gtk_toggle_button_new ();
gtk_button_set_focus_on_click (GTK_BUTTON (priv->button),
priv->focus_on_click);
g_signal_connect (priv->button, "toggled",
G_CALLBACK (gtk_combo_box_button_toggled), combo_box);
gtk_widget_set_parent (priv->button,
GTK_BIN (combo_box)->child->parent);
priv->arrow = gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_NONE);
gtk_container_add (GTK_CONTAINER (priv->button), priv->arrow);
gtk_widget_show_all (priv->button);
}
g_signal_connect (priv->button, "button-press-event",
G_CALLBACK (gtk_combo_box_menu_button_press),
combo_box);
g_signal_connect (priv->button, "state-changed",
G_CALLBACK (gtk_combo_box_button_state_changed),
combo_box);
/* create our funky menu */
menu = gtk_menu_new ();
gtk_widget_set_name (menu, "gtk-combobox-popup-menu");
gtk_menu_set_reserve_toggle_size (GTK_MENU (menu), FALSE);
g_signal_connect (menu, "key-press-event",
G_CALLBACK (gtk_combo_box_menu_key_press), combo_box);
gtk_combo_box_set_popup_widget (combo_box, menu);
/* add items */
if (add_children)
gtk_combo_box_menu_fill (combo_box);
/* the column is needed in tree_column_row_is_sensitive() */
priv->column = gtk_tree_view_column_new ();
g_object_ref_sink (priv->column);
gtk_combo_box_sync_cells (combo_box, GTK_CELL_LAYOUT (priv->column));
gtk_combo_box_update_title (combo_box);
gtk_combo_box_update_sensitivity (combo_box);
}
static void
gtk_combo_box_menu_fill (GtkComboBox *combo_box)
{
GtkComboBoxPrivate *priv = combo_box->priv;
GtkWidget *menu;
if (!priv->model)
return;
menu = priv->popup_widget;
if (priv->add_tearoffs)
{
GtkWidget *tearoff = gtk_tearoff_menu_item_new ();
gtk_widget_show (tearoff);
if (priv->wrap_width)
gtk_menu_attach (GTK_MENU (menu), tearoff, 0, priv->wrap_width, 0, 1);
else
gtk_menu_shell_append (GTK_MENU_SHELL (menu), tearoff);
}
gtk_combo_box_menu_fill_level (combo_box, menu, NULL);
}
static GtkWidget *
gtk_cell_view_menu_item_new (GtkComboBox *combo_box,
GtkTreeModel *model,
GtkTreeIter *iter)
{
GtkWidget *cell_view;
GtkWidget *item;
GtkTreePath *path;
GtkRequisition req;
cell_view = gtk_cell_view_new ();
item = gtk_menu_item_new ();
gtk_container_add (GTK_CONTAINER (item), cell_view);
gtk_cell_view_set_model (GTK_CELL_VIEW (cell_view), model);
path = gtk_tree_model_get_path (model, iter);
gtk_cell_view_set_displayed_row (GTK_CELL_VIEW (cell_view), path);
gtk_tree_path_free (path);
gtk_combo_box_sync_cells (combo_box, GTK_CELL_LAYOUT (cell_view));
gtk_widget_size_request (cell_view, &req);
gtk_widget_show (cell_view);
return item;
}
static void
gtk_combo_box_menu_fill_level (GtkComboBox *combo_box,
GtkWidget *menu,
GtkTreeIter *parent)
{
GtkComboBoxPrivate *priv = combo_box->priv;
GtkTreeModel *model = priv->model;
GtkWidget *item, *submenu, *subitem, *separator;
GtkTreeIter iter;
gboolean is_separator;
gint i, n_children;
GtkWidget *last;
GtkTreePath *path;
n_children = gtk_tree_model_iter_n_children (model, parent);
last = NULL;
for (i = 0; i < n_children; i++)
{
gtk_tree_model_iter_nth_child (model, &iter, parent, i);
if (priv->row_separator_func)
is_separator = priv->row_separator_func (priv->model, &iter,
priv->row_separator_data);
else
is_separator = FALSE;
if (is_separator)
{
item = gtk_separator_menu_item_new ();
path = gtk_tree_model_get_path (model, &iter);
g_object_set_data_full (G_OBJECT (item),
I_("gtk-combo-box-item-path"),
gtk_tree_row_reference_new (model, path),
(GDestroyNotify)gtk_tree_row_reference_free);
gtk_tree_path_free (path);
}
else
{
item = gtk_cell_view_menu_item_new (combo_box, model, &iter);
if (gtk_tree_model_iter_has_child (model, &iter))
{
submenu = gtk_menu_new ();
gtk_menu_set_reserve_toggle_size (GTK_MENU (submenu), FALSE);
gtk_widget_show (submenu);
gtk_menu_item_set_submenu (GTK_MENU_ITEM (item), submenu);
/* Ugly - since menus can only activate leafs, we have to
* duplicate the item inside the submenu.
*/
subitem = gtk_cell_view_menu_item_new (combo_box, model, &iter);
separator = gtk_separator_menu_item_new ();
gtk_widget_show (subitem);
gtk_widget_show (separator);
g_signal_connect (subitem, "activate",
G_CALLBACK (gtk_combo_box_menu_item_activate),
combo_box);
gtk_menu_shell_append (GTK_MENU_SHELL (submenu), subitem);
gtk_menu_shell_append (GTK_MENU_SHELL (submenu), separator);
gtk_combo_box_menu_fill_level (combo_box, submenu, &iter);
}
g_signal_connect (item, "activate",
G_CALLBACK (gtk_combo_box_menu_item_activate),
combo_box);
}
gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
if (priv->wrap_width && menu == priv->popup_widget)
gtk_combo_box_relayout_item (combo_box, item, &iter, last);
gtk_widget_show (item);
last = item;
}
}
static void
gtk_combo_box_menu_destroy (GtkComboBox *combo_box)
{
GtkComboBoxPrivate *priv = combo_box->priv;
g_signal_handlers_disconnect_matched (priv->button,
G_SIGNAL_MATCH_DATA,
0, 0, NULL,
gtk_combo_box_menu_button_press, NULL);
g_signal_handlers_disconnect_matched (priv->button,
G_SIGNAL_MATCH_DATA,
0, 0, NULL,
gtk_combo_box_button_state_changed, combo_box);
/* unparent will remove our latest ref */
gtk_widget_unparent (priv->button);
priv->box = NULL;
priv->button = NULL;
priv->arrow = NULL;
priv->separator = NULL;
g_object_unref (priv->column);
priv->column = NULL;
/* changing the popup window will unref the menu and the children */
}
/*
* grid
*/
static gboolean
menu_occupied (GtkMenu *menu,
guint left_attach,
guint right_attach,
guint top_attach,
guint bottom_attach)
{
GList *i;
for (i = GTK_MENU_SHELL (menu)->children; i; i = i->next)
{
guint l, r, b, t;
gtk_container_child_get (GTK_CONTAINER (menu),
i->data,
"left-attach", &l,
"right-attach", &r,
"bottom-attach", &b,
"top-attach", &t,
NULL);
/* look if this item intersects with the given coordinates */
if (right_attach > l && left_attach < r && bottom_attach > t && top_attach < b)
return TRUE;
}
return FALSE;
}
static void
gtk_combo_box_relayout_item (GtkComboBox *combo_box,
GtkWidget *item,
GtkTreeIter *iter,
GtkWidget *last)
{
GtkComboBoxPrivate *priv = combo_box->priv;
gint current_col = 0, current_row = 0;
gint rows = 1, cols = 1;
GtkWidget *menu = priv->popup_widget;
if (!GTK_IS_MENU_SHELL (menu))
return;
if (priv->col_column == -1 &&
priv->row_column == -1 &&
last)
{
gtk_container_child_get (GTK_CONTAINER (menu),
last,
"right-attach", &current_col,
"top-attach", &current_row,
NULL);
if (current_col + cols > priv->wrap_width)
{
current_col = 0;
current_row++;
}
}
else
{
if (priv->col_column != -1)
gtk_tree_model_get (priv->model, iter,
priv->col_column, &cols,
-1);
if (priv->row_column != -1)
gtk_tree_model_get (priv->model, iter,
priv->row_column, &rows,
-1);
while (1)
{
if (current_col + cols > priv->wrap_width)
{
current_col = 0;
current_row++;
}
if (!menu_occupied (GTK_MENU (menu),
current_col, current_col + cols,
current_row, current_row + rows))
break;
current_col++;
}
}
/* set attach props */
gtk_menu_attach (GTK_MENU (menu), item,
current_col, current_col + cols,
current_row, current_row + rows);
}
static void
gtk_combo_box_relayout (GtkComboBox *combo_box)
{
GList *list, *j;
GtkWidget *menu;
menu = combo_box->priv->popup_widget;
/* do nothing unless we are in menu style and realized */
if (combo_box->priv->tree_view || !GTK_IS_MENU_SHELL (menu))
return;
list = gtk_container_get_children (GTK_CONTAINER (menu));
for (j = g_list_last (list); j; j = j->prev)
gtk_container_remove (GTK_CONTAINER (menu), j->data);
gtk_combo_box_menu_fill (combo_box);
g_list_free (list);
}
/* callbacks */
static gboolean
gtk_combo_box_menu_button_press (GtkWidget *widget,
GdkEventButton *event,
gpointer user_data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (user_data);
GtkComboBoxPrivate *priv = combo_box->priv;
if (GTK_IS_MENU (priv->popup_widget) &&
event->type == GDK_BUTTON_PRESS && event->button == 1)
{
if (priv->focus_on_click &&
!gtk_widget_has_focus (priv->button))
gtk_widget_grab_focus (priv->button);
gtk_combo_box_menu_popup (combo_box, event->button, event->time);
return TRUE;
}
return FALSE;
}
static void
gtk_combo_box_menu_item_activate (GtkWidget *item,
gpointer user_data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (user_data);
GtkWidget *cell_view;
GtkTreePath *path;
GtkTreeIter iter;
cell_view = GTK_BIN (item)->child;
g_return_if_fail (GTK_IS_CELL_VIEW (cell_view));
path = gtk_cell_view_get_displayed_row (GTK_CELL_VIEW (cell_view));
if (gtk_tree_model_get_iter (combo_box->priv->model, &iter, path))
{
if (gtk_menu_item_get_submenu (GTK_MENU_ITEM (item)) == NULL)
gtk_combo_box_set_active_iter (combo_box, &iter);
}
gtk_tree_path_free (path);
g_object_set (combo_box,
"editing-canceled", FALSE,
NULL);
}
static void
gtk_combo_box_update_sensitivity (GtkComboBox *combo_box)
{
GtkTreeIter iter;
gboolean sensitive = TRUE; /* fool code checkers */
if (!combo_box->priv->button)
return;
switch (combo_box->priv->button_sensitivity)
{
case GTK_SENSITIVITY_ON:
sensitive = TRUE;
break;
case GTK_SENSITIVITY_OFF:
sensitive = FALSE;
break;
case GTK_SENSITIVITY_AUTO:
sensitive = combo_box->priv->model &&
gtk_tree_model_get_iter_first (combo_box->priv->model, &iter);
break;
default:
g_assert_not_reached ();
break;
}
gtk_widget_set_sensitive (combo_box->priv->button, sensitive);
/* In list-mode, we also need to update sensitivity of the event box */
if (GTK_IS_TREE_VIEW (combo_box->priv->tree_view)
&& combo_box->priv->cell_view)
gtk_widget_set_sensitive (combo_box->priv->box, sensitive);
}
static void
gtk_combo_box_model_row_inserted (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer user_data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (user_data);
if (combo_box->priv->tree_view)
gtk_combo_box_list_popup_resize (combo_box);
else
gtk_combo_box_menu_row_inserted (model, path, iter, user_data);
gtk_combo_box_update_sensitivity (combo_box);
}
static void
gtk_combo_box_model_row_deleted (GtkTreeModel *model,
GtkTreePath *path,
gpointer user_data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (user_data);
GtkComboBoxPrivate *priv = combo_box->priv;
if (!gtk_tree_row_reference_valid (priv->active_row))
{
if (priv->cell_view)
gtk_cell_view_set_displayed_row (GTK_CELL_VIEW (priv->cell_view), NULL);
g_signal_emit (combo_box, combo_box_signals[CHANGED], 0);
}
if (priv->tree_view)
gtk_combo_box_list_popup_resize (combo_box);
else
gtk_combo_box_menu_row_deleted (model, path, user_data);
gtk_combo_box_update_sensitivity (combo_box);
}
static void
gtk_combo_box_model_rows_reordered (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gint *new_order,
gpointer user_data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (user_data);
gtk_tree_row_reference_reordered (G_OBJECT (user_data), path, iter, new_order);
if (!combo_box->priv->tree_view)
gtk_combo_box_menu_rows_reordered (model, path, iter, new_order, user_data);
}
static void
gtk_combo_box_model_row_changed (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer user_data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (user_data);
GtkComboBoxPrivate *priv = combo_box->priv;
GtkTreePath *active_path;
/* FIXME this belongs to GtkCellView */
if (gtk_tree_row_reference_valid (priv->active_row))
{
active_path = gtk_tree_row_reference_get_path (priv->active_row);
if (gtk_tree_path_compare (path, active_path) == 0 &&
priv->cell_view)
gtk_widget_queue_resize (GTK_WIDGET (priv->cell_view));
gtk_tree_path_free (active_path);
}
if (priv->tree_view)
gtk_combo_box_list_row_changed (model, path, iter, user_data);
else
gtk_combo_box_menu_row_changed (model, path, iter, user_data);
}
static gboolean
list_popup_resize_idle (gpointer user_data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (user_data);
GtkComboBoxPrivate *priv = combo_box->priv;
gint x, y, width, height;
if (priv->tree_view && gtk_widget_get_mapped (priv->popup_window))
{
gtk_combo_box_list_position (combo_box, &x, &y, &width, &height);
gtk_widget_set_size_request (priv->popup_window, width, height);
gtk_window_move (GTK_WINDOW (priv->popup_window), x, y);
}
priv->resize_idle_id = 0;
return FALSE;
}
static void
gtk_combo_box_list_popup_resize (GtkComboBox *combo_box)
{
GtkComboBoxPrivate *priv = combo_box->priv;
if (!priv->resize_idle_id)
priv->resize_idle_id =
gdk_threads_add_idle (list_popup_resize_idle, combo_box);
}
static void
gtk_combo_box_model_row_expanded (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer user_data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (user_data);
gtk_combo_box_list_popup_resize (combo_box);
}
static GtkWidget *
find_menu_by_path (GtkWidget *menu,
GtkTreePath *path,
gboolean skip_first)
{
GList *i, *list;
GtkWidget *item;
GtkWidget *submenu;
GtkTreeRowReference *mref;
GtkTreePath *mpath;
gboolean skip;
list = gtk_container_get_children (GTK_CONTAINER (menu));
skip = skip_first;
item = NULL;
for (i = list; i; i = i->next)
{
if (GTK_IS_SEPARATOR_MENU_ITEM (i->data))
{
mref = g_object_get_data (G_OBJECT (i->data), "gtk-combo-box-item-path");
if (!mref)
continue;
else if (!gtk_tree_row_reference_valid (mref))
mpath = NULL;
else
mpath = gtk_tree_row_reference_get_path (mref);
}
else if (GTK_IS_CELL_VIEW (GTK_BIN (i->data)->child))
{
if (skip)
{
skip = FALSE;
continue;
}
mpath = gtk_cell_view_get_displayed_row (GTK_CELL_VIEW (GTK_BIN (i->data)->child));
}
else
continue;
/* this case is necessary, since the row reference of
* the cell view may already be updated after a deletion
*/
if (!mpath)
{
item = i->data;
break;
}
if (gtk_tree_path_compare (mpath, path) == 0)
{
gtk_tree_path_free (mpath);
item = i->data;
break;
}
if (gtk_tree_path_is_ancestor (mpath, path))
{
submenu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (i->data));
if (submenu != NULL)
{
gtk_tree_path_free (mpath);
item = find_menu_by_path (submenu, path, TRUE);
break;
}
}
gtk_tree_path_free (mpath);
}
g_list_free (list);
return item;
}
#if 0
static void
dump_menu_tree (GtkWidget *menu,
gint level)
{
GList *i, *list;
GtkWidget *submenu;
GtkTreePath *path;
list = gtk_container_get_children (GTK_CONTAINER (menu));
for (i = list; i; i = i->next)
{
if (GTK_IS_CELL_VIEW (GTK_BIN (i->data)->child))
{
path = gtk_cell_view_get_displayed_row (GTK_CELL_VIEW (GTK_BIN (i->data)->child));
g_print ("%*s%s\n", 2 * level, " ", gtk_tree_path_to_string (path));
gtk_tree_path_free (path);
submenu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (i->data));
if (submenu != NULL)
dump_menu_tree (submenu, level + 1);
}
}
g_list_free (list);
}
#endif
static void
gtk_combo_box_menu_row_inserted (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer user_data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (user_data);
GtkComboBoxPrivate *priv = combo_box->priv;
GtkWidget *parent;
GtkWidget *item, *menu, *separator;
GtkTreePath *ppath;
GtkTreeIter piter;
gint depth, pos;
gboolean is_separator;
if (!priv->popup_widget)
return;
depth = gtk_tree_path_get_depth (path);
pos = gtk_tree_path_get_indices (path)[depth - 1];
if (depth > 1)
{
ppath = gtk_tree_path_copy (path);
gtk_tree_path_up (ppath);
parent = find_menu_by_path (priv->popup_widget, ppath, FALSE);
gtk_tree_path_free (ppath);
menu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (parent));
if (!menu)
{
menu = gtk_menu_new ();
gtk_menu_set_reserve_toggle_size (GTK_MENU (menu), FALSE);
gtk_widget_show (menu);
gtk_menu_item_set_submenu (GTK_MENU_ITEM (parent), menu);
/* Ugly - since menus can only activate leaves, we have to
* duplicate the item inside the submenu.
*/
gtk_tree_model_iter_parent (model, &piter, iter);
item = gtk_cell_view_menu_item_new (combo_box, model, &piter);
separator = gtk_separator_menu_item_new ();
g_signal_connect (item, "activate",
G_CALLBACK (gtk_combo_box_menu_item_activate),
combo_box);
gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
gtk_menu_shell_append (GTK_MENU_SHELL (menu), separator);
if (cell_view_is_sensitive (GTK_CELL_VIEW (GTK_BIN (item)->child)))
{
gtk_widget_show (item);
gtk_widget_show (separator);
}
}
pos += 2;
}
else
{
menu = priv->popup_widget;
if (priv->add_tearoffs)
pos += 1;
}
if (priv->row_separator_func)
is_separator = priv->row_separator_func (model, iter,
priv->row_separator_data);
else
is_separator = FALSE;
if (is_separator)
{
item = gtk_separator_menu_item_new ();
g_object_set_data_full (G_OBJECT (item),
I_("gtk-combo-box-item-path"),
gtk_tree_row_reference_new (model, path),
(GDestroyNotify)gtk_tree_row_reference_free);
}
else
{
item = gtk_cell_view_menu_item_new (combo_box, model, iter);
g_signal_connect (item, "activate",
G_CALLBACK (gtk_combo_box_menu_item_activate),
combo_box);
}
gtk_widget_show (item);
gtk_menu_shell_insert (GTK_MENU_SHELL (menu), item, pos);
}
static void
gtk_combo_box_menu_row_deleted (GtkTreeModel *model,
GtkTreePath *path,
gpointer user_data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (user_data);
GtkComboBoxPrivate *priv = combo_box->priv;
GtkWidget *menu;
GtkWidget *item;
if (!priv->popup_widget)
return;
item = find_menu_by_path (priv->popup_widget, path, FALSE);
menu = gtk_widget_get_parent (item);
gtk_container_remove (GTK_CONTAINER (menu), item);
if (gtk_tree_path_get_depth (path) > 1)
{
GtkTreePath *parent_path;
GtkTreeIter iter;
GtkWidget *parent;
parent_path = gtk_tree_path_copy (path);
gtk_tree_path_up (parent_path);
gtk_tree_model_get_iter (model, &iter, parent_path);
if (!gtk_tree_model_iter_has_child (model, &iter))
{
parent = find_menu_by_path (priv->popup_widget,
parent_path, FALSE);
gtk_menu_item_set_submenu (GTK_MENU_ITEM (parent), NULL);
}
}
}
static void
gtk_combo_box_menu_rows_reordered (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gint *new_order,
gpointer user_data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (user_data);
gtk_combo_box_relayout (combo_box);
}
static void
gtk_combo_box_menu_row_changed (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer user_data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (user_data);
GtkComboBoxPrivate *priv = combo_box->priv;
GtkWidget *item;
gint width;
gboolean is_separator;
if (!priv->popup_widget)
return;
item = find_menu_by_path (priv->popup_widget, path, FALSE);
if (priv->row_separator_func)
is_separator = priv->row_separator_func (model, iter,
priv->row_separator_data);
else
is_separator = FALSE;
if (is_separator != GTK_IS_SEPARATOR_MENU_ITEM (item))
{
gtk_combo_box_menu_row_deleted (model, path, combo_box);
gtk_combo_box_menu_row_inserted (model, path, iter, combo_box);
}
if (priv->wrap_width && item->parent == priv->popup_widget)
{
GtkWidget *pitem = NULL;
GtkTreePath *prev;
prev = gtk_tree_path_copy (path);
if (gtk_tree_path_prev (prev))
pitem = find_menu_by_path (priv->popup_widget, prev, FALSE);
gtk_tree_path_free (prev);
/* unattach item so gtk_combo_box_relayout_item() won't spuriously
move it */
gtk_container_child_set (GTK_CONTAINER (priv->popup_widget),
item,
"left-attach", -1,
"right-attach", -1,
"top-attach", -1,
"bottom-attach", -1,
NULL);
gtk_combo_box_relayout_item (combo_box, item, iter, pitem);
}
width = gtk_combo_box_calc_requested_width (combo_box, path);
if (width > priv->width)
{
if (priv->cell_view)
{
gtk_widget_set_size_request (priv->cell_view, width, -1);
gtk_widget_queue_resize (priv->cell_view);
}
priv->width = width;
}
}
/*
* list style
*/
static void
gtk_combo_box_list_setup (GtkComboBox *combo_box)
{
GtkComboBoxPrivate *priv = combo_box->priv;
GtkTreeSelection *sel;
GtkStyle *style;
GtkWidget *widget = GTK_WIDGET (combo_box);
priv->button = gtk_toggle_button_new ();
gtk_widget_set_parent (priv->button,
GTK_BIN (combo_box)->child->parent);
g_signal_connect (priv->button, "button-press-event",
G_CALLBACK (gtk_combo_box_list_button_pressed), combo_box);
g_signal_connect (priv->button, "toggled",
G_CALLBACK (gtk_combo_box_button_toggled), combo_box);
priv->arrow = gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_NONE);
gtk_container_add (GTK_CONTAINER (priv->button), priv->arrow);
priv->separator = NULL;
gtk_widget_show_all (priv->button);
if (priv->cell_view)
{
style = gtk_widget_get_style (widget);
gtk_cell_view_set_background_color (GTK_CELL_VIEW (priv->cell_view),
&style->base[gtk_widget_get_state (widget)]);
priv->box = gtk_event_box_new ();
gtk_event_box_set_visible_window (GTK_EVENT_BOX (priv->box),
FALSE);
if (priv->has_frame)
{
priv->cell_view_frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (priv->cell_view_frame),
GTK_SHADOW_IN);
}
else
{
combo_box->priv->cell_view_frame = gtk_event_box_new ();
gtk_event_box_set_visible_window (GTK_EVENT_BOX (combo_box->priv->cell_view_frame),
FALSE);
}
gtk_widget_set_parent (priv->cell_view_frame,
GTK_BIN (combo_box)->child->parent);
gtk_container_add (GTK_CONTAINER (priv->cell_view_frame), priv->box);
gtk_widget_show_all (priv->cell_view_frame);
g_signal_connect (priv->box, "button-press-event",
G_CALLBACK (gtk_combo_box_list_button_pressed),
combo_box);
}
priv->tree_view = gtk_tree_view_new ();
sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (priv->tree_view));
gtk_tree_selection_set_mode (sel, GTK_SELECTION_BROWSE);
gtk_tree_selection_set_select_function (sel,
gtk_combo_box_list_select_func,
NULL, NULL);
gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (priv->tree_view),
FALSE);
gtk_tree_view_set_hover_selection (GTK_TREE_VIEW (priv->tree_view),
TRUE);
if (priv->row_separator_func)
gtk_tree_view_set_row_separator_func (GTK_TREE_VIEW (priv->tree_view),
priv->row_separator_func,
priv->row_separator_data,
NULL);
if (priv->model)
gtk_tree_view_set_model (GTK_TREE_VIEW (priv->tree_view), priv->model);
priv->column = gtk_tree_view_column_new ();
gtk_tree_view_append_column (GTK_TREE_VIEW (priv->tree_view), priv->column);
/* sync up */
gtk_combo_box_sync_cells (combo_box,
GTK_CELL_LAYOUT (priv->column));
if (gtk_tree_row_reference_valid (priv->active_row))
{
GtkTreePath *path;
path = gtk_tree_row_reference_get_path (priv->active_row);
gtk_tree_view_set_cursor (GTK_TREE_VIEW (priv->tree_view),
path, NULL, FALSE);
gtk_tree_path_free (path);
}
/* set sample/popup widgets */
gtk_combo_box_set_popup_widget (combo_box, priv->tree_view);
g_signal_connect (priv->tree_view, "key-press-event",
G_CALLBACK (gtk_combo_box_list_key_press),
combo_box);
g_signal_connect (priv->tree_view, "enter-notify-event",
G_CALLBACK (gtk_combo_box_list_enter_notify),
combo_box);
g_signal_connect (priv->tree_view, "row-expanded",
G_CALLBACK (gtk_combo_box_model_row_expanded),
combo_box);
g_signal_connect (priv->tree_view, "row-collapsed",
G_CALLBACK (gtk_combo_box_model_row_expanded),
combo_box);
g_signal_connect (priv->popup_window, "button-press-event",
G_CALLBACK (gtk_combo_box_list_button_pressed),
combo_box);
g_signal_connect (priv->popup_window, "button-release-event",
G_CALLBACK (gtk_combo_box_list_button_released),
combo_box);
gtk_widget_show (priv->tree_view);
gtk_combo_box_update_sensitivity (combo_box);
}
static void
gtk_combo_box_list_destroy (GtkComboBox *combo_box)
{
GtkComboBoxPrivate *priv = combo_box->priv;
/* disconnect signals */
g_signal_handlers_disconnect_matched (priv->tree_view,
G_SIGNAL_MATCH_DATA,
0, 0, NULL, NULL, combo_box);
g_signal_handlers_disconnect_matched (priv->button,
G_SIGNAL_MATCH_DATA,
0, 0, NULL,
gtk_combo_box_list_button_pressed,
NULL);
g_signal_handlers_disconnect_matched (priv->popup_window,
G_SIGNAL_MATCH_DATA,
0, 0, NULL,
gtk_combo_box_list_button_pressed,
NULL);
g_signal_handlers_disconnect_matched (priv->popup_window,
G_SIGNAL_MATCH_DATA,
0, 0, NULL,
gtk_combo_box_list_button_released,
NULL);
g_signal_handlers_disconnect_matched (priv->popup_window,
G_SIGNAL_MATCH_DATA,
0, 0, NULL,
gtk_combo_box_child_show,
NULL);
g_signal_handlers_disconnect_matched (priv->popup_window,
G_SIGNAL_MATCH_DATA,
0, 0, NULL,
gtk_combo_box_child_hide,
NULL);
if (priv->box)
g_signal_handlers_disconnect_matched (priv->box,
G_SIGNAL_MATCH_DATA,
0, 0, NULL,
gtk_combo_box_list_button_pressed,
NULL);
/* destroy things (unparent will kill the latest ref from us)
* last unref on button will destroy the arrow
*/
gtk_widget_unparent (priv->button);
priv->button = NULL;
priv->arrow = NULL;
if (priv->cell_view)
{
g_object_set (priv->cell_view,
"background-set", FALSE,
NULL);
}
if (priv->cell_view_frame)
{
gtk_widget_unparent (priv->cell_view_frame);
priv->cell_view_frame = NULL;
priv->box = NULL;
}
if (priv->scroll_timer)
{
g_source_remove (priv->scroll_timer);
priv->scroll_timer = 0;
}
if (priv->resize_idle_id)
{
g_source_remove (priv->resize_idle_id);
priv->resize_idle_id = 0;
}
gtk_widget_destroy (priv->tree_view);
priv->tree_view = NULL;
if (priv->popup_widget)
{
g_object_unref (priv->popup_widget);
priv->popup_widget = NULL;
}
}
/* callbacks */
static gboolean
gtk_combo_box_list_button_pressed (GtkWidget *widget,
GdkEventButton *event,
gpointer data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (data);
GtkComboBoxPrivate *priv = combo_box->priv;
GtkWidget *ewidget = gtk_get_event_widget ((GdkEvent *)event);
if (ewidget == priv->popup_window)
return TRUE;
if ((ewidget != priv->button && ewidget != priv->box) ||
gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (priv->button)))
return FALSE;
if (priv->focus_on_click &&
!gtk_widget_has_focus (priv->button))
gtk_widget_grab_focus (priv->button);
gtk_combo_box_popup (combo_box);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (priv->button), TRUE);
priv->auto_scroll = FALSE;
if (priv->scroll_timer == 0)
priv->scroll_timer = gdk_threads_add_timeout (SCROLL_TIME,
(GSourceFunc) gtk_combo_box_list_scroll_timeout,
combo_box);
priv->popup_in_progress = TRUE;
return TRUE;
}
static gboolean
gtk_combo_box_list_button_released (GtkWidget *widget,
GdkEventButton *event,
gpointer data)
{
gboolean ret;
GtkTreePath *path = NULL;
GtkTreeIter iter;
GtkComboBox *combo_box = GTK_COMBO_BOX (data);
GtkComboBoxPrivate *priv = combo_box->priv;
gboolean popup_in_progress = FALSE;
GtkWidget *ewidget = gtk_get_event_widget ((GdkEvent *)event);
if (priv->popup_in_progress)
{
popup_in_progress = TRUE;
priv->popup_in_progress = FALSE;
}
gtk_tree_view_set_hover_expand (GTK_TREE_VIEW (priv->tree_view),
FALSE);
if (priv->scroll_timer)
{
g_source_remove (priv->scroll_timer);
priv->scroll_timer = 0;
}
if (ewidget != priv->tree_view)
{
if ((ewidget == priv->button ||
ewidget == priv->box) &&
!popup_in_progress &&
gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (priv->button)))
{
gtk_combo_box_popdown (combo_box);
return TRUE;
}
/* released outside treeview */
if (ewidget != priv->button && ewidget != priv->box)
{
gtk_combo_box_popdown (combo_box);
return TRUE;
}
return FALSE;
}
/* select something cool */
ret = gtk_tree_view_get_path_at_pos (GTK_TREE_VIEW (priv->tree_view),
event->x, event->y,
&path,
NULL, NULL, NULL);
if (!ret)
return TRUE; /* clicked outside window? */
gtk_tree_model_get_iter (priv->model, &iter, path);
gtk_tree_path_free (path);
gtk_combo_box_popdown (combo_box);
if (tree_column_row_is_sensitive (combo_box, &iter))
gtk_combo_box_set_active_iter (combo_box, &iter);
return TRUE;
}
static gboolean
gtk_combo_box_menu_key_press (GtkWidget *widget,
GdkEventKey *event,
gpointer data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (data);
if (!gtk_bindings_activate_event (GTK_OBJECT (widget), event))
{
/* The menu hasn't managed the
* event, forward it to the combobox
*/
gtk_bindings_activate_event (GTK_OBJECT (combo_box), event);
}
return TRUE;
}
static gboolean
gtk_combo_box_list_key_press (GtkWidget *widget,
GdkEventKey *event,
gpointer data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (data);
GtkTreeIter iter;
if (event->keyval == GDK_Return || event->keyval == GDK_ISO_Enter || event->keyval == GDK_KP_Enter ||
event->keyval == GDK_space || event->keyval == GDK_KP_Space)
{
GtkTreeModel *model = NULL;
gtk_combo_box_popdown (combo_box);
if (combo_box->priv->model)
{
GtkTreeSelection *sel;
sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (combo_box->priv->tree_view));
if (gtk_tree_selection_get_selected (sel, &model, &iter))
gtk_combo_box_set_active_iter (combo_box, &iter);
}
return TRUE;
}
if (!gtk_bindings_activate_event (GTK_OBJECT (widget), event))
{
/* The list hasn't managed the
* event, forward it to the combobox
*/
gtk_bindings_activate_event (GTK_OBJECT (combo_box), event);
}
return TRUE;
}
static void
gtk_combo_box_list_auto_scroll (GtkComboBox *combo_box,
gint x,
gint y)
{
GtkWidget *tree_view = combo_box->priv->tree_view;
GtkAdjustment *adj;
gdouble value;
adj = gtk_scrolled_window_get_hadjustment (GTK_SCROLLED_WINDOW (combo_box->priv->scrolled_window));
if (adj && adj->upper - adj->lower > adj->page_size)
{
if (x <= tree_view->allocation.x &&
adj->lower < adj->value)
{
value = adj->value - (tree_view->allocation.x - x + 1);
gtk_adjustment_set_value (adj, CLAMP (value, adj->lower, adj->upper - adj->page_size));
}
else if (x >= tree_view->allocation.x + tree_view->allocation.width &&
adj->upper - adj->page_size > adj->value)
{
value = adj->value + (x - tree_view->allocation.x - tree_view->allocation.width + 1);
gtk_adjustment_set_value (adj, CLAMP (value, 0.0, adj->upper - adj->page_size));
}
}
adj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (combo_box->priv->scrolled_window));
if (adj && adj->upper - adj->lower > adj->page_size)
{
if (y <= tree_view->allocation.y &&
adj->lower < adj->value)
{
value = adj->value - (tree_view->allocation.y - y + 1);
gtk_adjustment_set_value (adj, CLAMP (value, adj->lower, adj->upper - adj->page_size));
}
else if (y >= tree_view->allocation.height &&
adj->upper - adj->page_size > adj->value)
{
value = adj->value + (y - tree_view->allocation.height + 1);
gtk_adjustment_set_value (adj, CLAMP (value, 0.0, adj->upper - adj->page_size));
}
}
}
static gboolean
gtk_combo_box_list_scroll_timeout (GtkComboBox *combo_box)
{
GtkComboBoxPrivate *priv = combo_box->priv;
gint x, y;
if (priv->auto_scroll)
{
gdk_window_get_pointer (priv->tree_view->window, &x, &y, NULL);
gtk_combo_box_list_auto_scroll (combo_box, x, y);
}
return TRUE;
}
static gboolean
gtk_combo_box_list_enter_notify (GtkWidget *widget,
GdkEventCrossing *event,
gpointer data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (data);
combo_box->priv->auto_scroll = TRUE;
return TRUE;
}
static gboolean
gtk_combo_box_list_select_func (GtkTreeSelection *selection,
GtkTreeModel *model,
GtkTreePath *path,
gboolean path_currently_selected,
gpointer data)
{
GList *list;
gboolean sensitive = FALSE;
for (list = selection->tree_view->priv->columns; list && !sensitive; list = list->next)
{
GList *cells, *cell;
gboolean cell_sensitive, cell_visible;
GtkTreeIter iter;
GtkTreeViewColumn *column = GTK_TREE_VIEW_COLUMN (list->data);
if (!column->visible)
continue;
gtk_tree_model_get_iter (model, &iter, path);
gtk_tree_view_column_cell_set_cell_data (column, model, &iter,
FALSE, FALSE);
cell = cells = gtk_cell_layout_get_cells (GTK_CELL_LAYOUT (column));
while (cell)
{
g_object_get (cell->data,
"sensitive", &cell_sensitive,
"visible", &cell_visible,
NULL);
if (cell_visible && cell_sensitive)
break;
cell = cell->next;
}
g_list_free (cells);
sensitive = cell_sensitive;
}
return sensitive;
}
static void
gtk_combo_box_list_row_changed (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (data);
GtkComboBoxPrivate *priv = combo_box->priv;
gint width;
width = gtk_combo_box_calc_requested_width (combo_box, path);
if (width > priv->width)
{
if (priv->cell_view)
{
gtk_widget_set_size_request (priv->cell_view, width, -1);
gtk_widget_queue_resize (priv->cell_view);
}
priv->width = width;
}
}
/*
* GtkCellLayout implementation
*/
static void
pack_start_recurse (GtkWidget *menu,
GtkCellRenderer *cell,
gboolean expand)
{
GList *i, *list;
GtkWidget *submenu;
list = gtk_container_get_children (GTK_CONTAINER (menu));
for (i = list; i; i = i->next)
{
if (GTK_IS_CELL_LAYOUT (GTK_BIN (i->data)->child))
gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (GTK_BIN (i->data)->child),
cell, expand);
submenu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (i->data));
if (submenu != NULL)
pack_start_recurse (submenu, cell, expand);
}
g_list_free (list);
}
static void
gtk_combo_box_cell_layout_pack_start (GtkCellLayout *layout,
GtkCellRenderer *cell,
gboolean expand)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (layout);
ComboCellInfo *info;
GtkComboBoxPrivate *priv;
priv = combo_box->priv;
g_object_ref_sink (cell);
info = g_slice_new0 (ComboCellInfo);
info->cell = cell;
info->expand = expand;
info->pack = GTK_PACK_START;
priv->cells = g_slist_append (priv->cells, info);
if (priv->cell_view)
gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (priv->cell_view),
cell, expand);
if (priv->column)
gtk_tree_view_column_pack_start (priv->column, cell, expand);
if (GTK_IS_MENU (priv->popup_widget))
pack_start_recurse (priv->popup_widget, cell, expand);
}
static void
pack_end_recurse (GtkWidget *menu,
GtkCellRenderer *cell,
gboolean expand)
{
GList *i, *list;
GtkWidget *submenu;
list = gtk_container_get_children (GTK_CONTAINER (menu));
for (i = list; i; i = i->next)
{
if (GTK_IS_CELL_LAYOUT (GTK_BIN (i->data)->child))
gtk_cell_layout_pack_end (GTK_CELL_LAYOUT (GTK_BIN (i->data)->child),
cell, expand);
submenu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (i->data));
if (submenu != NULL)
pack_end_recurse (submenu, cell, expand);
}
g_list_free (list);
}
static void
gtk_combo_box_cell_layout_pack_end (GtkCellLayout *layout,
GtkCellRenderer *cell,
gboolean expand)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (layout);
ComboCellInfo *info;
GtkComboBoxPrivate *priv;
priv = combo_box->priv;
g_object_ref_sink (cell);
info = g_slice_new0 (ComboCellInfo);
info->cell = cell;
info->expand = expand;
info->pack = GTK_PACK_END;
priv->cells = g_slist_append (priv->cells, info);
if (priv->cell_view)
gtk_cell_layout_pack_end (GTK_CELL_LAYOUT (priv->cell_view),
cell, expand);
if (priv->column)
gtk_tree_view_column_pack_end (priv->column, cell, expand);
if (GTK_IS_MENU (priv->popup_widget))
pack_end_recurse (priv->popup_widget, cell, expand);
}
static GList *
gtk_combo_box_cell_layout_get_cells (GtkCellLayout *layout)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (layout);
GSList *list;
GList *retval = NULL;
for (list = combo_box->priv->cells; list; list = list->next)
{
ComboCellInfo *info = (ComboCellInfo *)list->data;
retval = g_list_prepend (retval, info->cell);
}
return g_list_reverse (retval);
}
static void
clear_recurse (GtkWidget *menu)
{
GList *i, *list;
GtkWidget *submenu;
list = gtk_container_get_children (GTK_CONTAINER (menu));
for (i = list; i; i = i->next)
{
if (GTK_IS_CELL_LAYOUT (GTK_BIN (i->data)->child))
gtk_cell_layout_clear (GTK_CELL_LAYOUT (GTK_BIN (i->data)->child));
submenu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (i->data));
if (submenu != NULL)
clear_recurse (submenu);
}
g_list_free (list);
}
static void
gtk_combo_box_cell_layout_clear (GtkCellLayout *layout)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (layout);
GtkComboBoxPrivate *priv = combo_box->priv;
GSList *i;
if (priv->cell_view)
gtk_cell_layout_clear (GTK_CELL_LAYOUT (priv->cell_view));
if (priv->column)
gtk_tree_view_column_clear (priv->column);
for (i = priv->cells; i; i = i->next)
{
ComboCellInfo *info = (ComboCellInfo *)i->data;
gtk_combo_box_cell_layout_clear_attributes (layout, info->cell);
g_object_unref (info->cell);
g_slice_free (ComboCellInfo, info);
i->data = NULL;
}
g_slist_free (priv->cells);
priv->cells = NULL;
if (GTK_IS_MENU (priv->popup_widget))
clear_recurse (priv->popup_widget);
}
static void
add_attribute_recurse (GtkWidget *menu,
GtkCellRenderer *cell,
const gchar *attribute,
gint column)
{
GList *i, *list;
GtkWidget *submenu;
list = gtk_container_get_children (GTK_CONTAINER (menu));
for (i = list; i; i = i->next)
{
if (GTK_IS_CELL_LAYOUT (GTK_BIN (i->data)->child))
gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (GTK_BIN (i->data)->child),
cell, attribute, column);
submenu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (i->data));
if (submenu != NULL)
add_attribute_recurse (submenu, cell, attribute, column);
}
g_list_free (list);
}
static void
gtk_combo_box_cell_layout_add_attribute (GtkCellLayout *layout,
GtkCellRenderer *cell,
const gchar *attribute,
gint column)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (layout);
ComboCellInfo *info;
info = gtk_combo_box_get_cell_info (combo_box, cell);
g_return_if_fail (info != NULL);
info->attributes = g_slist_prepend (info->attributes,
GINT_TO_POINTER (column));
info->attributes = g_slist_prepend (info->attributes,
g_strdup (attribute));
if (combo_box->priv->cell_view)
gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (combo_box->priv->cell_view),
cell, attribute, column);
if (combo_box->priv->column)
gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (combo_box->priv->column),
cell, attribute, column);
if (GTK_IS_MENU (combo_box->priv->popup_widget))
add_attribute_recurse (combo_box->priv->popup_widget, cell, attribute, column);
gtk_widget_queue_resize (GTK_WIDGET (combo_box));
}
static void
combo_cell_data_func (GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
GtkTreeModel *tree_model,
GtkTreeIter *iter,
gpointer data)
{
ComboCellInfo *info = (ComboCellInfo *)data;
GtkWidget *parent = NULL;
if (!info->func)
return;
info->func (cell_layout, cell, tree_model, iter, info->func_data);
if (GTK_IS_WIDGET (cell_layout))
parent = gtk_widget_get_parent (GTK_WIDGET (cell_layout));
if (GTK_IS_MENU_ITEM (parent) &&
gtk_menu_item_get_submenu (GTK_MENU_ITEM (parent)))
g_object_set (cell, "sensitive", TRUE, NULL);
}
static void
set_cell_data_func_recurse (GtkWidget *menu,
GtkCellRenderer *cell,
ComboCellInfo *info)
{
GList *i, *list;
GtkWidget *submenu;
GtkWidget *cell_view;
list = gtk_container_get_children (GTK_CONTAINER (menu));
for (i = list; i; i = i->next)
{
cell_view = GTK_BIN (i->data)->child;
if (GTK_IS_CELL_LAYOUT (cell_view))
{
/* Override sensitivity for inner nodes; we don't
* want menuitems with submenus to appear insensitive
*/
gtk_cell_layout_set_cell_data_func (GTK_CELL_LAYOUT (cell_view),
cell,
combo_cell_data_func,
info, NULL);
submenu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (i->data));
if (submenu != NULL)
set_cell_data_func_recurse (submenu, cell, info);
}
}
g_list_free (list);
}
static void
gtk_combo_box_cell_layout_set_cell_data_func (GtkCellLayout *layout,
GtkCellRenderer *cell,
GtkCellLayoutDataFunc func,
gpointer func_data,
GDestroyNotify destroy)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (layout);
GtkComboBoxPrivate *priv = combo_box->priv;
ComboCellInfo *info;
info = gtk_combo_box_get_cell_info (combo_box, cell);
g_return_if_fail (info != NULL);
if (info->destroy)
{
GDestroyNotify d = info->destroy;
info->destroy = NULL;
d (info->func_data);
}
info->func = func;
info->func_data = func_data;
info->destroy = destroy;
if (priv->cell_view)
gtk_cell_layout_set_cell_data_func (GTK_CELL_LAYOUT (priv->cell_view), cell, func, func_data, NULL);
if (priv->column)
gtk_cell_layout_set_cell_data_func (GTK_CELL_LAYOUT (priv->column), cell, func, func_data, NULL);
if (GTK_IS_MENU (priv->popup_widget))
set_cell_data_func_recurse (priv->popup_widget, cell, info);
gtk_widget_queue_resize (GTK_WIDGET (combo_box));
}
static void
clear_attributes_recurse (GtkWidget *menu,
GtkCellRenderer *cell)
{
GList *i, *list;
GtkWidget *submenu;
list = gtk_container_get_children (GTK_CONTAINER (menu));
for (i = list; i; i = i->next)
{
if (GTK_IS_CELL_LAYOUT (GTK_BIN (i->data)->child))
gtk_cell_layout_clear_attributes (GTK_CELL_LAYOUT (GTK_BIN (i->data)->child),
cell);
submenu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (i->data));
if (submenu != NULL)
clear_attributes_recurse (submenu, cell);
}
g_list_free (list);
}
static void
gtk_combo_box_cell_layout_clear_attributes (GtkCellLayout *layout,
GtkCellRenderer *cell)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (layout);
GtkComboBoxPrivate *priv;
ComboCellInfo *info;
GSList *list;
priv = combo_box->priv;
info = gtk_combo_box_get_cell_info (combo_box, cell);
g_return_if_fail (info != NULL);
list = info->attributes;
while (list && list->next)
{
g_free (list->data);
list = list->next->next;
}
g_slist_free (info->attributes);
info->attributes = NULL;
if (priv->cell_view)
gtk_cell_layout_clear_attributes (GTK_CELL_LAYOUT (priv->cell_view), cell);
if (priv->column)
gtk_cell_layout_clear_attributes (GTK_CELL_LAYOUT (priv->column), cell);
if (GTK_IS_MENU (priv->popup_widget))
clear_attributes_recurse (priv->popup_widget, cell);
gtk_widget_queue_resize (GTK_WIDGET (combo_box));
}
static void
reorder_recurse (GtkWidget *menu,
GtkCellRenderer *cell,
gint position)
{
GList *i, *list;
GtkWidget *submenu;
list = gtk_container_get_children (GTK_CONTAINER (menu));
for (i = list; i; i = i->next)
{
if (GTK_IS_CELL_LAYOUT (GTK_BIN (i->data)->child))
gtk_cell_layout_reorder (GTK_CELL_LAYOUT (GTK_BIN (i->data)->child),
cell, position);
submenu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (i->data));
if (submenu != NULL)
reorder_recurse (submenu, cell, position);
}
g_list_free (list);
}
static void
gtk_combo_box_cell_layout_reorder (GtkCellLayout *layout,
GtkCellRenderer *cell,
gint position)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (layout);
GtkComboBoxPrivate *priv;
ComboCellInfo *info;
GSList *link;
priv = combo_box->priv;
info = gtk_combo_box_get_cell_info (combo_box, cell);
g_return_if_fail (info != NULL);
g_return_if_fail (position >= 0);
link = g_slist_find (priv->cells, info);
g_return_if_fail (link != NULL);
priv->cells = g_slist_delete_link (priv->cells, link);
priv->cells = g_slist_insert (priv->cells, info, position);
if (priv->cell_view)
gtk_cell_layout_reorder (GTK_CELL_LAYOUT (priv->cell_view),
cell, position);
if (priv->column)
gtk_cell_layout_reorder (GTK_CELL_LAYOUT (priv->column),
cell, position);
if (GTK_IS_MENU (priv->popup_widget))
reorder_recurse (priv->popup_widget, cell, position);
gtk_widget_queue_draw (GTK_WIDGET (combo_box));
}
/*
* public API
*/
/**
* gtk_combo_box_new:
*
* Creates a new empty #GtkComboBox.
*
* Return value: A new #GtkComboBox.
*
* Since: 2.4
*/
GtkWidget *
gtk_combo_box_new (void)
{
return g_object_new (GTK_TYPE_COMBO_BOX, NULL);
}
/**
* gtk_combo_box_new_with_entry:
*
* Creates a new empty #GtkComboBox with an entry.
*
* Return value: A new #GtkComboBox.
*/
GtkWidget *
gtk_combo_box_new_with_entry (void)
{
return g_object_new (GTK_TYPE_COMBO_BOX, "has-entry", TRUE, NULL);
}
/**
* gtk_combo_box_new_with_model:
* @model: A #GtkTreeModel.
*
* Creates a new #GtkComboBox with the model initialized to @model.
*
* Return value: A new #GtkComboBox.
*
* Since: 2.4
*/
GtkWidget *
gtk_combo_box_new_with_model (GtkTreeModel *model)
{
GtkComboBox *combo_box;
g_return_val_if_fail (GTK_IS_TREE_MODEL (model), NULL);
combo_box = g_object_new (GTK_TYPE_COMBO_BOX, "model", model, NULL);
return GTK_WIDGET (combo_box);
}
/**
* gtk_combo_box_new_with_model_and_entry:
*
* Creates a new empty #GtkComboBox with an entry
* and with the model initialized to @model.
*
* Return value: A new #GtkComboBox
*/
GtkWidget *
gtk_combo_box_new_with_model_and_entry (GtkTreeModel *model)
{
return g_object_new (GTK_TYPE_COMBO_BOX,
"has-entry", TRUE,
"model", model,
NULL);
}
/**
* gtk_combo_box_get_wrap_width:
* @combo_box: A #GtkComboBox
*
* Returns the wrap width which is used to determine the number of columns
* for the popup menu. If the wrap width is larger than 1, the combo box
* is in table mode.
*
* Returns: the wrap width.
*
* Since: 2.6
*/
gint
gtk_combo_box_get_wrap_width (GtkComboBox *combo_box)
{
g_return_val_if_fail (GTK_IS_COMBO_BOX (combo_box), -1);
return combo_box->priv->wrap_width;
}
/**
* gtk_combo_box_set_wrap_width:
* @combo_box: A #GtkComboBox
* @width: Preferred number of columns
*
* Sets the wrap width of @combo_box to be @width. The wrap width is basically
* the preferred number of columns when you want the popup to be layed out
* in a table.
*
* Since: 2.4
*/
void
gtk_combo_box_set_wrap_width (GtkComboBox *combo_box,
gint width)
{
GtkComboBoxPrivate *priv;
g_return_if_fail (GTK_IS_COMBO_BOX (combo_box));
g_return_if_fail (width >= 0);
priv = combo_box->priv;
if (width != priv->wrap_width)
{
priv->wrap_width = width;
gtk_combo_box_check_appearance (combo_box);
gtk_combo_box_relayout (combo_box);
g_object_notify (G_OBJECT (combo_box), "wrap-width");
}
}
/**
* gtk_combo_box_get_row_span_column:
* @combo_box: A #GtkComboBox
*
* Returns the column with row span information for @combo_box.
*
* Returns: the row span column.
*
* Since: 2.6
*/
gint
gtk_combo_box_get_row_span_column (GtkComboBox *combo_box)
{
g_return_val_if_fail (GTK_IS_COMBO_BOX (combo_box), -1);
return combo_box->priv->row_column;
}
/**
* gtk_combo_box_set_row_span_column:
* @combo_box: A #GtkComboBox.
* @row_span: A column in the model passed during construction.
*
* Sets the column with row span information for @combo_box to be @row_span.
* The row span column contains integers which indicate how many rows
* an item should span.
*
* Since: 2.4
*/
void
gtk_combo_box_set_row_span_column (GtkComboBox *combo_box,
gint row_span)
{
GtkComboBoxPrivate *priv;
gint col;
g_return_if_fail (GTK_IS_COMBO_BOX (combo_box));
priv = combo_box->priv;
col = gtk_tree_model_get_n_columns (priv->model);
g_return_if_fail (row_span >= -1 && row_span < col);
if (row_span != priv->row_column)
{
priv->row_column = row_span;
gtk_combo_box_relayout (combo_box);
g_object_notify (G_OBJECT (combo_box), "row-span-column");
}
}
/**
* gtk_combo_box_get_column_span_column:
* @combo_box: A #GtkComboBox
*
* Returns the column with column span information for @combo_box.
*
* Returns: the column span column.
*
* Since: 2.6
*/
gint
gtk_combo_box_get_column_span_column (GtkComboBox *combo_box)
{
g_return_val_if_fail (GTK_IS_COMBO_BOX (combo_box), -1);
return combo_box->priv->col_column;
}
/**
* gtk_combo_box_set_column_span_column:
* @combo_box: A #GtkComboBox
* @column_span: A column in the model passed during construction
*
* Sets the column with column span information for @combo_box to be
* @column_span. The column span column contains integers which indicate
* how many columns an item should span.
*
* Since: 2.4
*/
void
gtk_combo_box_set_column_span_column (GtkComboBox *combo_box,
gint column_span)
{
GtkComboBoxPrivate *priv;
gint col;
g_return_if_fail (GTK_IS_COMBO_BOX (combo_box));
priv = combo_box->priv;
col = gtk_tree_model_get_n_columns (priv->model);
g_return_if_fail (column_span >= -1 && column_span < col);
if (column_span != priv->col_column)
{
priv->col_column = column_span;
gtk_combo_box_relayout (combo_box);
g_object_notify (G_OBJECT (combo_box), "column-span-column");
}
}
/**
* gtk_combo_box_get_active:
* @combo_box: A #GtkComboBox
*
* Returns the index of the currently active item, or -1 if there's no
* active item. If the model is a non-flat treemodel, and the active item
* is not an immediate child of the root of the tree, this function returns
* <literal>gtk_tree_path_get_indices (path)[0]</literal>, where
* <literal>path</literal> is the #GtkTreePath of the active item.
*
* Return value: An integer which is the index of the currently active item,
* or -1 if there's no active item.
*
* Since: 2.4
*/
gint
gtk_combo_box_get_active (GtkComboBox *combo_box)
{
GtkComboBoxPrivate *priv;
gint result;
g_return_val_if_fail (GTK_IS_COMBO_BOX (combo_box), 0);
priv = combo_box->priv;
if (gtk_tree_row_reference_valid (priv->active_row))
{
GtkTreePath *path;
path = gtk_tree_row_reference_get_path (priv->active_row);
result = gtk_tree_path_get_indices (path)[0];
gtk_tree_path_free (path);
}
else
result = -1;
return result;
}
/**
* gtk_combo_box_set_active:
* @combo_box: A #GtkComboBox
* @index_: An index in the model passed during construction, or -1 to have
* no active item
*
* Sets the active item of @combo_box to be the item at @index.
*
* Since: 2.4
*/
void
gtk_combo_box_set_active (GtkComboBox *combo_box,
gint index_)
{
GtkTreePath *path = NULL;
g_return_if_fail (GTK_IS_COMBO_BOX (combo_box));
g_return_if_fail (index_ >= -1);
if (combo_box->priv->model == NULL)
{
/* Save index, in case the model is set after the index */
combo_box->priv->active = index_;
if (index_ != -1)
return;
}
if (index_ != -1)
path = gtk_tree_path_new_from_indices (index_, -1);
gtk_combo_box_set_active_internal (combo_box, path);
if (path)
gtk_tree_path_free (path);
}
static void
gtk_combo_box_set_active_internal (GtkComboBox *combo_box,
GtkTreePath *path)
{
GtkComboBoxPrivate *priv = combo_box->priv;
GtkTreePath *active_path;
gint path_cmp;
/* Remember whether the initially active row is valid. */
gboolean is_valid_row_reference = gtk_tree_row_reference_valid (priv->active_row);
if (path && is_valid_row_reference)
{
active_path = gtk_tree_row_reference_get_path (priv->active_row);
path_cmp = gtk_tree_path_compare (path, active_path);
gtk_tree_path_free (active_path);
if (path_cmp == 0)
return;
}
if (priv->active_row)
{
gtk_tree_row_reference_free (priv->active_row);
priv->active_row = NULL;
}
if (!path)
{
if (priv->tree_view)
gtk_tree_selection_unselect_all (gtk_tree_view_get_selection (GTK_TREE_VIEW (priv->tree_view)));
else
{
GtkMenu *menu = GTK_MENU (priv->popup_widget);
if (GTK_IS_MENU (menu))
gtk_menu_set_active (menu, -1);
}
if (priv->cell_view)
gtk_cell_view_set_displayed_row (GTK_CELL_VIEW (priv->cell_view), NULL);
/*
* Do not emit a "changed" signal when an already invalid selection was
* now set to invalid.
*/
if (!is_valid_row_reference)
return;
}
else
{
priv->active_row =
gtk_tree_row_reference_new (priv->model, path);
if (priv->tree_view)
{
gtk_tree_view_set_cursor (GTK_TREE_VIEW (priv->tree_view),
path, NULL, FALSE);
}
else if (GTK_IS_MENU (priv->popup_widget))
{
/* FIXME handle nested menus better */
gtk_menu_set_active (GTK_MENU (priv->popup_widget),
gtk_tree_path_get_indices (path)[0]);
}
if (priv->cell_view)
gtk_cell_view_set_displayed_row (GTK_CELL_VIEW (priv->cell_view),
path);
}
g_signal_emit (combo_box, combo_box_signals[CHANGED], 0);
g_object_notify (G_OBJECT (combo_box), "active");
}
/**
* gtk_combo_box_get_active_iter:
* @combo_box: A #GtkComboBox
* @iter: (out): The uninitialized #GtkTreeIter
*
* Sets @iter to point to the current active item, if it exists.
*
* Return value: %TRUE, if @iter was set
*
* Since: 2.4
*/
gboolean
gtk_combo_box_get_active_iter (GtkComboBox *combo_box,
GtkTreeIter *iter)
{
GtkTreePath *path;
gboolean result;
g_return_val_if_fail (GTK_IS_COMBO_BOX (combo_box), FALSE);
if (!gtk_tree_row_reference_valid (combo_box->priv->active_row))
return FALSE;
path = gtk_tree_row_reference_get_path (combo_box->priv->active_row);
result = gtk_tree_model_get_iter (combo_box->priv->model, iter, path);
gtk_tree_path_free (path);
return result;
}
/**
* gtk_combo_box_set_active_iter:
* @combo_box: A #GtkComboBox
* @iter: (allow-none): The #GtkTreeIter, or %NULL
*
* Sets the current active item to be the one referenced by @iter, or
* unsets the active item if @iter is %NULL.
*
* Since: 2.4
*/
void
gtk_combo_box_set_active_iter (GtkComboBox *combo_box,
GtkTreeIter *iter)
{
GtkTreePath *path = NULL;
g_return_if_fail (GTK_IS_COMBO_BOX (combo_box));
if (iter)
path = gtk_tree_model_get_path (gtk_combo_box_get_model (combo_box), iter);
gtk_combo_box_set_active_internal (combo_box, path);
gtk_tree_path_free (path);
}
/**
* gtk_combo_box_set_model:
* @combo_box: A #GtkComboBox
* @model: (allow-none): A #GtkTreeModel
*
* Sets the model used by @combo_box to be @model. Will unset a previously set
* model (if applicable). If model is %NULL, then it will unset the model.
*
* Note that this function does not clear the cell renderers, you have to
* call gtk_cell_layout_clear() yourself if you need to set up different
* cell renderers for the new model.
*
* Since: 2.4
*/
void
gtk_combo_box_set_model (GtkComboBox *combo_box,
GtkTreeModel *model)
{
g_return_if_fail (GTK_IS_COMBO_BOX (combo_box));
g_return_if_fail (model == NULL || GTK_IS_TREE_MODEL (model));
if (model == combo_box->priv->model)
return;
gtk_combo_box_unset_model (combo_box);
if (model == NULL)
goto out;
combo_box->priv->model = model;
g_object_ref (combo_box->priv->model);
combo_box->priv->inserted_id =
g_signal_connect (combo_box->priv->model, "row-inserted",
G_CALLBACK (gtk_combo_box_model_row_inserted),
combo_box);
combo_box->priv->deleted_id =
g_signal_connect (combo_box->priv->model, "row-deleted",
G_CALLBACK (gtk_combo_box_model_row_deleted),
combo_box);
combo_box->priv->reordered_id =
g_signal_connect (combo_box->priv->model, "rows-reordered",
G_CALLBACK (gtk_combo_box_model_rows_reordered),
combo_box);
combo_box->priv->changed_id =
g_signal_connect (combo_box->priv->model, "row-changed",
G_CALLBACK (gtk_combo_box_model_row_changed),
combo_box);
if (combo_box->priv->tree_view)
{
/* list mode */
gtk_tree_view_set_model (GTK_TREE_VIEW (combo_box->priv->tree_view),
combo_box->priv->model);
gtk_combo_box_list_popup_resize (combo_box);
}
else
{
/* menu mode */
if (combo_box->priv->popup_widget)
gtk_combo_box_menu_fill (combo_box);
}
if (combo_box->priv->cell_view)
gtk_cell_view_set_model (GTK_CELL_VIEW (combo_box->priv->cell_view),
combo_box->priv->model);
if (combo_box->priv->active != -1)
{
/* If an index was set in advance, apply it now */
gtk_combo_box_set_active (combo_box, combo_box->priv->active);
combo_box->priv->active = -1;
}
out:
gtk_combo_box_update_sensitivity (combo_box);
g_object_notify (G_OBJECT (combo_box), "model");
}
/**
* gtk_combo_box_get_model:
* @combo_box: A #GtkComboBox
*
* Returns the #GtkTreeModel which is acting as data source for @combo_box.
*
* Return value: (transfer none): A #GtkTreeModel which was passed
* during construction.
*
* Since: 2.4
*/
GtkTreeModel *
gtk_combo_box_get_model (GtkComboBox *combo_box)
{
g_return_val_if_fail (GTK_IS_COMBO_BOX (combo_box), NULL);
return combo_box->priv->model;
}
/* convenience API for simple text combos */
/**
* gtk_combo_box_new_text:
*
* Convenience function which constructs a new text combo box, which is a
* #GtkComboBox just displaying strings. If you use this function to create
* a text combo box, you should only manipulate its data source with the
* following convenience functions: gtk_combo_box_append_text(),
* gtk_combo_box_insert_text(), gtk_combo_box_prepend_text() and
* gtk_combo_box_remove_text().
*
* Return value: (transfer none): A new text combo box.
*
* Since: 2.4
*
* Deprecated: 2.24: Use #GtkComboBoxText
*/
GtkWidget *
gtk_combo_box_new_text (void)
{
GtkWidget *combo_box;
GtkCellRenderer *cell;
GtkListStore *store;
store = gtk_list_store_new (1, G_TYPE_STRING);
combo_box = gtk_combo_box_new_with_model (GTK_TREE_MODEL (store));
g_object_unref (store);
cell = gtk_cell_renderer_text_new ();
gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (combo_box), cell, TRUE);
gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (combo_box), cell,
"text", 0,
NULL);
return combo_box;
}
/**
* gtk_combo_box_append_text:
* @combo_box: A #GtkComboBox constructed using gtk_combo_box_new_text()
* @text: A string
*
* Appends @string to the list of strings stored in @combo_box. Note that
* you can only use this function with combo boxes constructed with
* gtk_combo_box_new_text().
*
* Since: 2.4
*
* Deprecated: 2.24: Use #GtkComboBoxText
*/
void
gtk_combo_box_append_text (GtkComboBox *combo_box,
const gchar *text)
{
GtkTreeIter iter;
GtkListStore *store;
g_return_if_fail (GTK_IS_COMBO_BOX (combo_box));
g_return_if_fail (GTK_IS_LIST_STORE (combo_box->priv->model));
g_return_if_fail (gtk_tree_model_get_column_type (combo_box->priv->model, 0)
== G_TYPE_STRING);
g_return_if_fail (text != NULL);
store = GTK_LIST_STORE (combo_box->priv->model);
gtk_list_store_append (store, &iter);
gtk_list_store_set (store, &iter, 0, text, -1);
}
/**
* gtk_combo_box_insert_text:
* @combo_box: A #GtkComboBox constructed using gtk_combo_box_new_text()
* @position: An index to insert @text
* @text: A string
*
* Inserts @string at @position in the list of strings stored in @combo_box.
* Note that you can only use this function with combo boxes constructed
* with gtk_combo_box_new_text().
*
* Since: 2.4
*
* Deprecated: 2.24: Use #GtkComboBoxText
*/
void
gtk_combo_box_insert_text (GtkComboBox *combo_box,
gint position,
const gchar *text)
{
GtkTreeIter iter;
GtkListStore *store;
g_return_if_fail (GTK_IS_COMBO_BOX (combo_box));
g_return_if_fail (GTK_IS_LIST_STORE (combo_box->priv->model));
g_return_if_fail (position >= 0);
g_return_if_fail (gtk_tree_model_get_column_type (combo_box->priv->model, 0)
== G_TYPE_STRING);
g_return_if_fail (text != NULL);
store = GTK_LIST_STORE (combo_box->priv->model);
gtk_list_store_insert (store, &iter, position);
gtk_list_store_set (store, &iter, 0, text, -1);
}
/**
* gtk_combo_box_prepend_text:
* @combo_box: A #GtkComboBox constructed with gtk_combo_box_new_text()
* @text: A string
*
* Prepends @string to the list of strings stored in @combo_box. Note that
* you can only use this function with combo boxes constructed with
* gtk_combo_box_new_text().
*
* Since: 2.4
*
* Deprecated: 2.24: Use #GtkComboBoxText
*/
void
gtk_combo_box_prepend_text (GtkComboBox *combo_box,
const gchar *text)
{
GtkTreeIter iter;
GtkListStore *store;
g_return_if_fail (GTK_IS_COMBO_BOX (combo_box));
g_return_if_fail (GTK_IS_LIST_STORE (combo_box->priv->model));
g_return_if_fail (gtk_tree_model_get_column_type (combo_box->priv->model, 0)
== G_TYPE_STRING);
g_return_if_fail (text != NULL);
store = GTK_LIST_STORE (combo_box->priv->model);
gtk_list_store_prepend (store, &iter);
gtk_list_store_set (store, &iter, 0, text, -1);
}
/**
* gtk_combo_box_remove_text:
* @combo_box: A #GtkComboBox constructed with gtk_combo_box_new_text()
* @position: Index of the item to remove
*
* Removes the string at @position from @combo_box. Note that you can only use
* this function with combo boxes constructed with gtk_combo_box_new_text().
*
* Since: 2.4
*
* Deprecated: 2.24: Use #GtkComboBoxText
*/
void
gtk_combo_box_remove_text (GtkComboBox *combo_box,
gint position)
{
GtkTreeIter iter;
GtkListStore *store;
g_return_if_fail (GTK_IS_COMBO_BOX (combo_box));
g_return_if_fail (GTK_IS_LIST_STORE (combo_box->priv->model));
g_return_if_fail (gtk_tree_model_get_column_type (combo_box->priv->model, 0)
== G_TYPE_STRING);
g_return_if_fail (position >= 0);
store = GTK_LIST_STORE (combo_box->priv->model);
if (gtk_tree_model_iter_nth_child (combo_box->priv->model, &iter,
NULL, position))
gtk_list_store_remove (store, &iter);
}
/**
* gtk_combo_box_get_active_text:
* @combo_box: A #GtkComboBox constructed with gtk_combo_box_new_text()
*
* Returns the currently active string in @combo_box or %NULL if none
* is selected. Note that you can only use this function with combo
* boxes constructed with gtk_combo_box_new_text() and with
* #GtkComboBoxEntry<!-- -->s.
*
* Returns: a newly allocated string containing the currently active text.
* Must be freed with g_free().
*
* Since: 2.6
*
* Deprecated: 2.24: If you used this with a #GtkComboBox constructed with
* gtk_combo_box_new_text() then you should now use #GtkComboBoxText and
* gtk_combo_box_text_get_active_text() instead. Or if you used this with a
* #GtkComboBoxEntry then you should now use #GtkComboBox with
* #GtkComboBox:has-entry as %TRUE and use
* gtk_entry_get_text (GTK_ENTRY (gtk_bin_get_child (GTK_BIN (combobox))).
*/
gchar *
gtk_combo_box_get_active_text (GtkComboBox *combo_box)
{
GtkComboBoxClass *class;
g_return_val_if_fail (GTK_IS_COMBO_BOX (combo_box), NULL);
class = GTK_COMBO_BOX_GET_CLASS (combo_box);
if (class->get_active_text)
return class->get_active_text (combo_box);
return NULL;
}
static gchar *
gtk_combo_box_real_get_active_text (GtkComboBox *combo_box)
{
GtkTreeIter iter;
gchar *text = NULL;
if (combo_box->priv->has_entry)
{
GtkBin *combo = GTK_BIN (combo_box);
GtkWidget *child;
child = gtk_bin_get_child (combo);
if (child)
return g_strdup (gtk_entry_get_text (GTK_ENTRY (child)));
return NULL;
}
else
{
g_return_val_if_fail (GTK_IS_LIST_STORE (combo_box->priv->model), NULL);
g_return_val_if_fail (gtk_tree_model_get_column_type (combo_box->priv->model, 0)
== G_TYPE_STRING, NULL);
if (gtk_combo_box_get_active_iter (combo_box, &iter))
gtk_tree_model_get (combo_box->priv->model, &iter,
0, &text, -1);
return text;
}
}
static void
gtk_combo_box_real_move_active (GtkComboBox *combo_box,
GtkScrollType scroll)
{
GtkTreeIter iter;
GtkTreeIter new_iter;
gboolean active_iter;
gboolean found;
if (!combo_box->priv->model)
{
gtk_widget_error_bell (GTK_WIDGET (combo_box));
return;
}
active_iter = gtk_combo_box_get_active_iter (combo_box, &iter);
switch (scroll)
{
case GTK_SCROLL_STEP_BACKWARD:
case GTK_SCROLL_STEP_UP:
case GTK_SCROLL_STEP_LEFT:
if (active_iter)
{
found = tree_prev (combo_box, combo_box->priv->model,
&iter, &new_iter, FALSE);
break;
}
/* else fall through */
case GTK_SCROLL_PAGE_FORWARD:
case GTK_SCROLL_PAGE_DOWN:
case GTK_SCROLL_PAGE_RIGHT:
case GTK_SCROLL_END:
found = tree_last (combo_box, combo_box->priv->model, &new_iter, FALSE);
break;
case GTK_SCROLL_STEP_FORWARD:
case GTK_SCROLL_STEP_DOWN:
case GTK_SCROLL_STEP_RIGHT:
if (active_iter)
{
found = tree_next (combo_box, combo_box->priv->model,
&iter, &new_iter, FALSE);
break;
}
/* else fall through */
case GTK_SCROLL_PAGE_BACKWARD:
case GTK_SCROLL_PAGE_UP:
case GTK_SCROLL_PAGE_LEFT:
case GTK_SCROLL_START:
found = tree_first (combo_box, combo_box->priv->model, &new_iter, FALSE);
break;
default:
return;
}
if (found && active_iter)
{
GtkTreePath *old_path;
GtkTreePath *new_path;
old_path = gtk_tree_model_get_path (combo_box->priv->model, &iter);
new_path = gtk_tree_model_get_path (combo_box->priv->model, &new_iter);
if (gtk_tree_path_compare (old_path, new_path) == 0)
found = FALSE;
gtk_tree_path_free (old_path);
gtk_tree_path_free (new_path);
}
if (found)
{
gtk_combo_box_set_active_iter (combo_box, &new_iter);
}
else
{
gtk_widget_error_bell (GTK_WIDGET (combo_box));
}
}
static gboolean
gtk_combo_box_mnemonic_activate (GtkWidget *widget,
gboolean group_cycling)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (widget);
if (combo_box->priv->has_entry)
{
GtkWidget* child;
child = gtk_bin_get_child (GTK_BIN (combo_box));
if (child)
gtk_widget_grab_focus (child);
}
else
gtk_widget_grab_focus (combo_box->priv->button);
return TRUE;
}
static void
gtk_combo_box_grab_focus (GtkWidget *widget)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (widget);
if (combo_box->priv->has_entry)
{
GtkWidget *child;
child = gtk_bin_get_child (GTK_BIN (combo_box));
if (child)
gtk_widget_grab_focus (child);
}
else
gtk_widget_grab_focus (combo_box->priv->button);
}
static void
gtk_combo_box_destroy (GtkObject *object)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (object);
if (combo_box->priv->popup_idle_id > 0)
{
g_source_remove (combo_box->priv->popup_idle_id);
combo_box->priv->popup_idle_id = 0;
}
gtk_combo_box_popdown (combo_box);
if (combo_box->priv->row_separator_destroy)
combo_box->priv->row_separator_destroy (combo_box->priv->row_separator_data);
combo_box->priv->row_separator_func = NULL;
combo_box->priv->row_separator_data = NULL;
combo_box->priv->row_separator_destroy = NULL;
GTK_OBJECT_CLASS (gtk_combo_box_parent_class)->destroy (object);
combo_box->priv->cell_view = NULL;
}
static void
gtk_combo_box_entry_contents_changed (GtkEntry *entry,
gpointer user_data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (user_data);
/*
* Fixes regression reported in bug #574059. The old functionality relied on
* bug #572478. As a bugfix, we now emit the "changed" signal ourselves
* when the selection was already set to -1.
*/
if (gtk_combo_box_get_active(combo_box) == -1)
g_signal_emit_by_name (combo_box, "changed");
else
gtk_combo_box_set_active (combo_box, -1);
}
static void
gtk_combo_box_entry_active_changed (GtkComboBox *combo_box,
gpointer user_data)
{
GtkComboBoxPrivate *priv = combo_box->priv;
GtkTreeModel *model;
GtkTreeIter iter;
if (gtk_combo_box_get_active_iter (combo_box, &iter))
{
GtkEntry *entry = GTK_ENTRY (gtk_bin_get_child (GTK_BIN (combo_box)));
if (entry)
{
GValue value = {0,};
g_signal_handlers_block_by_func (entry,
gtk_combo_box_entry_contents_changed,
combo_box);
model = gtk_combo_box_get_model (combo_box);
gtk_tree_model_get_value (model, &iter,
priv->text_column, &value);
g_object_set_property (G_OBJECT (entry), "text", &value);
g_value_unset (&value);
g_signal_handlers_unblock_by_func (entry,
gtk_combo_box_entry_contents_changed,
combo_box);
}
}
}
static GObject *
gtk_combo_box_constructor (GType type,
guint n_construct_properties,
GObjectConstructParam *construct_properties)
{
GObject *object;
GtkComboBox *combo_box;
GtkComboBoxPrivate *priv;
object = G_OBJECT_CLASS (gtk_combo_box_parent_class)->constructor
(type, n_construct_properties, construct_properties);
combo_box = GTK_COMBO_BOX (object);
priv = combo_box->priv;
if (priv->has_entry)
{
GtkWidget *entry;
entry = gtk_entry_new ();
gtk_widget_show (entry);
gtk_container_add (GTK_CONTAINER (combo_box), entry);
priv->text_renderer = gtk_cell_renderer_text_new ();
gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (combo_box),
priv->text_renderer, TRUE);
gtk_combo_box_set_active (GTK_COMBO_BOX (combo_box), -1);
g_signal_connect (combo_box, "changed",
G_CALLBACK (gtk_combo_box_entry_active_changed), NULL);
}
return object;
}
static void
gtk_combo_box_dispose(GObject* object)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (object);
if (GTK_IS_MENU (combo_box->priv->popup_widget))
{
gtk_combo_box_menu_destroy (combo_box);
gtk_menu_detach (GTK_MENU (combo_box->priv->popup_widget));
combo_box->priv->popup_widget = NULL;
}
G_OBJECT_CLASS (gtk_combo_box_parent_class)->dispose (object);
}
static void
gtk_combo_box_finalize (GObject *object)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (object);
GSList *i;
if (GTK_IS_TREE_VIEW (combo_box->priv->tree_view))
gtk_combo_box_list_destroy (combo_box);
if (combo_box->priv->popup_window)
gtk_widget_destroy (combo_box->priv->popup_window);
gtk_combo_box_unset_model (combo_box);
for (i = combo_box->priv->cells; i; i = i->next)
{
ComboCellInfo *info = (ComboCellInfo *)i->data;
GSList *list = info->attributes;
if (info->destroy)
info->destroy (info->func_data);
while (list && list->next)
{
g_free (list->data);
list = list->next->next;
}
g_slist_free (info->attributes);
g_object_unref (info->cell);
g_slice_free (ComboCellInfo, info);
}
g_slist_free (combo_box->priv->cells);
g_free (combo_box->priv->tearoff_title);
G_OBJECT_CLASS (gtk_combo_box_parent_class)->finalize (object);
}
static gboolean
gtk_cell_editable_key_press (GtkWidget *widget,
GdkEventKey *event,
gpointer data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (data);
if (event->keyval == GDK_Escape)
{
g_object_set (combo_box,
"editing-canceled", TRUE,
NULL);
gtk_cell_editable_editing_done (GTK_CELL_EDITABLE (combo_box));
gtk_cell_editable_remove_widget (GTK_CELL_EDITABLE (combo_box));
return TRUE;
}
else if (event->keyval == GDK_Return ||
event->keyval == GDK_ISO_Enter ||
event->keyval == GDK_KP_Enter)
{
gtk_cell_editable_editing_done (GTK_CELL_EDITABLE (combo_box));
gtk_cell_editable_remove_widget (GTK_CELL_EDITABLE (combo_box));
return TRUE;
}
return FALSE;
}
static gboolean
popdown_idle (gpointer data)
{
GtkComboBox *combo_box;
combo_box = GTK_COMBO_BOX (data);
gtk_cell_editable_editing_done (GTK_CELL_EDITABLE (combo_box));
gtk_cell_editable_remove_widget (GTK_CELL_EDITABLE (combo_box));
g_object_unref (combo_box);
return FALSE;
}
static void
popdown_handler (GtkWidget *widget,
gpointer data)
{
gdk_threads_add_idle (popdown_idle, g_object_ref (data));
}
static gboolean
popup_idle (gpointer data)
{
GtkComboBox *combo_box;
combo_box = GTK_COMBO_BOX (data);
if (GTK_IS_MENU (combo_box->priv->popup_widget) &&
combo_box->priv->cell_view)
g_signal_connect_object (combo_box->priv->popup_widget,
"unmap", G_CALLBACK (popdown_handler),
combo_box, 0);
/* we unset this if a menu item is activated */
g_object_set (combo_box,
"editing-canceled", TRUE,
NULL);
gtk_combo_box_popup (combo_box);
combo_box->priv->popup_idle_id = 0;
combo_box->priv->activate_button = 0;
combo_box->priv->activate_time = 0;
return FALSE;
}
static void
gtk_combo_box_start_editing (GtkCellEditable *cell_editable,
GdkEvent *event)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (cell_editable);
combo_box->priv->is_cell_renderer = TRUE;
if (combo_box->priv->cell_view)
{
g_signal_connect_object (combo_box->priv->button, "key-press-event",
G_CALLBACK (gtk_cell_editable_key_press),
cell_editable, 0);
gtk_widget_grab_focus (combo_box->priv->button);
}
else
{
g_signal_connect_object (GTK_BIN (combo_box)->child, "key-press-event",
G_CALLBACK (gtk_cell_editable_key_press),
cell_editable, 0);
gtk_widget_grab_focus (GTK_WIDGET (GTK_BIN (combo_box)->child));
gtk_widget_set_can_focus (combo_box->priv->button, FALSE);
}
/* we do the immediate popup only for the optionmenu-like
* appearance
*/
if (combo_box->priv->is_cell_renderer &&
combo_box->priv->cell_view && !combo_box->priv->tree_view)
{
if (event && event->type == GDK_BUTTON_PRESS)
{
GdkEventButton *event_button = (GdkEventButton *)event;
combo_box->priv->activate_button = event_button->button;
combo_box->priv->activate_time = event_button->time;
}
combo_box->priv->popup_idle_id =
gdk_threads_add_idle (popup_idle, combo_box);
}
}
/**
* gtk_combo_box_get_add_tearoffs:
* @combo_box: a #GtkComboBox
*
* Gets the current value of the :add-tearoffs property.
*
* Return value: the current value of the :add-tearoffs property.
*/
gboolean
gtk_combo_box_get_add_tearoffs (GtkComboBox *combo_box)
{
g_return_val_if_fail (GTK_IS_COMBO_BOX (combo_box), FALSE);
return combo_box->priv->add_tearoffs;
}
/**
* gtk_combo_box_set_add_tearoffs:
* @combo_box: a #GtkComboBox
* @add_tearoffs: %TRUE to add tearoff menu items
*
* Sets whether the popup menu should have a tearoff
* menu item.
*
* Since: 2.6
*/
void
gtk_combo_box_set_add_tearoffs (GtkComboBox *combo_box,
gboolean add_tearoffs)
{
g_return_if_fail (GTK_IS_COMBO_BOX (combo_box));
add_tearoffs = add_tearoffs != FALSE;
if (combo_box->priv->add_tearoffs != add_tearoffs)
{
combo_box->priv->add_tearoffs = add_tearoffs;
gtk_combo_box_check_appearance (combo_box);
gtk_combo_box_relayout (combo_box);
g_object_notify (G_OBJECT (combo_box), "add-tearoffs");
}
}
/**
* gtk_combo_box_get_title:
* @combo_box: a #GtkComboBox
*
* Gets the current title of the menu in tearoff mode. See
* gtk_combo_box_set_add_tearoffs().
*
* Returns: the menu's title in tearoff mode. This is an internal copy of the
* string which must not be freed.
*
* Since: 2.10
*/
G_CONST_RETURN gchar*
gtk_combo_box_get_title (GtkComboBox *combo_box)
{
g_return_val_if_fail (GTK_IS_COMBO_BOX (combo_box), NULL);
return combo_box->priv->tearoff_title;
}
static void
gtk_combo_box_update_title (GtkComboBox *combo_box)
{
gtk_combo_box_check_appearance (combo_box);
if (combo_box->priv->popup_widget &&
GTK_IS_MENU (combo_box->priv->popup_widget))
gtk_menu_set_title (GTK_MENU (combo_box->priv->popup_widget),
combo_box->priv->tearoff_title);
}
/**
* gtk_combo_box_set_title:
* @combo_box: a #GtkComboBox
* @title: a title for the menu in tearoff mode
*
* Sets the menu's title in tearoff mode.
*
* Since: 2.10
*/
void
gtk_combo_box_set_title (GtkComboBox *combo_box,
const gchar *title)
{
GtkComboBoxPrivate *priv;
g_return_if_fail (GTK_IS_COMBO_BOX (combo_box));
priv = combo_box->priv;
if (strcmp (title ? title : "",
priv->tearoff_title ? priv->tearoff_title : "") != 0)
{
g_free (priv->tearoff_title);
priv->tearoff_title = g_strdup (title);
gtk_combo_box_update_title (combo_box);
g_object_notify (G_OBJECT (combo_box), "tearoff-title");
}
}
/**
* gtk_combo_box_get_popup_accessible:
* @combo_box: a #GtkComboBox
*
* Gets the accessible object corresponding to the combo box's popup.
*
* This function is mostly intended for use by accessibility technologies;
* applications should have little use for it.
*
* Returns: (transfer none): the accessible object corresponding
* to the combo box's popup.
*
* Since: 2.6
*/
AtkObject*
gtk_combo_box_get_popup_accessible (GtkComboBox *combo_box)
{
AtkObject *atk_obj;
g_return_val_if_fail (GTK_IS_COMBO_BOX (combo_box), NULL);
if (combo_box->priv->popup_widget)
{
atk_obj = gtk_widget_get_accessible (combo_box->priv->popup_widget);
return atk_obj;
}
return NULL;
}
/**
* gtk_combo_box_get_row_separator_func:
* @combo_box: a #GtkComboBox
*
* Returns the current row separator function.
*
* Return value: the current row separator function.
*
* Since: 2.6
*/
GtkTreeViewRowSeparatorFunc
gtk_combo_box_get_row_separator_func (GtkComboBox *combo_box)
{
g_return_val_if_fail (GTK_IS_COMBO_BOX (combo_box), NULL);
return combo_box->priv->row_separator_func;
}
/**
* gtk_combo_box_set_row_separator_func:
* @combo_box: a #GtkComboBox
* @func: a #GtkTreeViewRowSeparatorFunc
* @data: (allow-none): user data to pass to @func, or %NULL
* @destroy: (allow-none): destroy notifier for @data, or %NULL
*
* Sets the row separator function, which is used to determine
* whether a row should be drawn as a separator. If the row separator
* function is %NULL, no separators are drawn. This is the default value.
*
* Since: 2.6
*/
void
gtk_combo_box_set_row_separator_func (GtkComboBox *combo_box,
GtkTreeViewRowSeparatorFunc func,
gpointer data,
GDestroyNotify destroy)
{
g_return_if_fail (GTK_IS_COMBO_BOX (combo_box));
if (combo_box->priv->row_separator_destroy)
combo_box->priv->row_separator_destroy (combo_box->priv->row_separator_data);
combo_box->priv->row_separator_func = func;
combo_box->priv->row_separator_data = data;
combo_box->priv->row_separator_destroy = destroy;
if (combo_box->priv->tree_view)
gtk_tree_view_set_row_separator_func (GTK_TREE_VIEW (combo_box->priv->tree_view),
func, data, NULL);
gtk_combo_box_relayout (combo_box);
gtk_widget_queue_draw (GTK_WIDGET (combo_box));
}
/**
* gtk_combo_box_set_button_sensitivity:
* @combo_box: a #GtkComboBox
* @sensitivity: specify the sensitivity of the dropdown button
*
* Sets whether the dropdown button of the combo box should be
* always sensitive (%GTK_SENSITIVITY_ON), never sensitive (%GTK_SENSITIVITY_OFF)
* or only if there is at least one item to display (%GTK_SENSITIVITY_AUTO).
*
* Since: 2.14
**/
void
gtk_combo_box_set_button_sensitivity (GtkComboBox *combo_box,
GtkSensitivityType sensitivity)
{
g_return_if_fail (GTK_IS_COMBO_BOX (combo_box));
if (combo_box->priv->button_sensitivity != sensitivity)
{
combo_box->priv->button_sensitivity = sensitivity;
gtk_combo_box_update_sensitivity (combo_box);
g_object_notify (G_OBJECT (combo_box), "button-sensitivity");
}
}
/**
* gtk_combo_box_get_button_sensitivity:
* @combo_box: a #GtkComboBox
*
* Returns whether the combo box sets the dropdown button
* sensitive or not when there are no items in the model.
*
* Return Value: %GTK_SENSITIVITY_ON if the dropdown button
* is sensitive when the model is empty, %GTK_SENSITIVITY_OFF
* if the button is always insensitive or
* %GTK_SENSITIVITY_AUTO if it is only sensitive as long as
* the model has one item to be selected.
*
* Since: 2.14
**/
GtkSensitivityType
gtk_combo_box_get_button_sensitivity (GtkComboBox *combo_box)
{
g_return_val_if_fail (GTK_IS_COMBO_BOX (combo_box), FALSE);
return combo_box->priv->button_sensitivity;
}
/**
* gtk_combo_box_get_has_entry:
* @combo_box: a #GtkComboBox
*
* Returns whether the combo box has an entry.
*
* Return Value: whether there is an entry in @combo_box.
*
* Since: 2.24
**/
gboolean
gtk_combo_box_get_has_entry (GtkComboBox *combo_box)
{
g_return_val_if_fail (GTK_IS_COMBO_BOX (combo_box), FALSE);
return combo_box->priv->has_entry;
}
/**
* gtk_combo_box_set_entry_text_column:
* @combo_box: A #GtkComboBox
* @text_column: A column in @model to get the strings from for
* the internal entry
*
* Sets the model column which @combo_box should use to get strings from
* to be @text_column. The column @text_column in the model of @combo_box
* must be of type %G_TYPE_STRING.
*
* This is only relevant if @combo_box has been created with
* #GtkComboBox:has-entry as %TRUE.
*
* Since: 2.24
*/
void
gtk_combo_box_set_entry_text_column (GtkComboBox *combo_box,
gint text_column)
{
GtkComboBoxPrivate *priv = combo_box->priv;
GtkTreeModel *model;
g_return_if_fail (GTK_IS_COMBO_BOX (combo_box));
model = gtk_combo_box_get_model (combo_box);
g_return_if_fail (text_column >= 0);
g_return_if_fail (model == NULL || text_column < gtk_tree_model_get_n_columns (model));
priv->text_column = text_column;
if (priv->text_renderer)
gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (combo_box),
priv->text_renderer,
"text", text_column,
NULL);
}
/**
* gtk_combo_box_get_entry_text_column:
* @combo_box: A #GtkComboBox.
*
* Returns the column which @combo_box is using to get the strings
* from to display in the internal entry.
*
* Return value: A column in the data source model of @combo_box.
*
* Since: 2.24
*/
gint
gtk_combo_box_get_entry_text_column (GtkComboBox *combo_box)
{
g_return_val_if_fail (GTK_IS_COMBO_BOX (combo_box), 0);
return combo_box->priv->text_column;
}
/**
* gtk_combo_box_set_focus_on_click:
* @combo: a #GtkComboBox
* @focus_on_click: whether the combo box grabs focus when clicked
* with the mouse
*
* Sets whether the combo box will grab focus when it is clicked with
* the mouse. Making mouse clicks not grab focus is useful in places
* like toolbars where you don't want the keyboard focus removed from
* the main area of the application.
*
* Since: 2.6
*/
void
gtk_combo_box_set_focus_on_click (GtkComboBox *combo_box,
gboolean focus_on_click)
{
g_return_if_fail (GTK_IS_COMBO_BOX (combo_box));
focus_on_click = focus_on_click != FALSE;
if (combo_box->priv->focus_on_click != focus_on_click)
{
combo_box->priv->focus_on_click = focus_on_click;
if (combo_box->priv->button)
gtk_button_set_focus_on_click (GTK_BUTTON (combo_box->priv->button),
focus_on_click);
g_object_notify (G_OBJECT (combo_box), "focus-on-click");
}
}
/**
* gtk_combo_box_get_focus_on_click:
* @combo: a #GtkComboBox
*
* Returns whether the combo box grabs focus when it is clicked
* with the mouse. See gtk_combo_box_set_focus_on_click().
*
* Return value: %TRUE if the combo box grabs focus when it is
* clicked with the mouse.
*
* Since: 2.6
*/
gboolean
gtk_combo_box_get_focus_on_click (GtkComboBox *combo_box)
{
g_return_val_if_fail (GTK_IS_COMBO_BOX (combo_box), FALSE);
return combo_box->priv->focus_on_click;
}
static gboolean
gtk_combo_box_buildable_custom_tag_start (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *tagname,
GMarkupParser *parser,
gpointer *data)
{
if (parent_buildable_iface->custom_tag_start (buildable, builder, child,
tagname, parser, data))
return TRUE;
return _gtk_cell_layout_buildable_custom_tag_start (buildable, builder, child,
tagname, parser, data);
}
static void
gtk_combo_box_buildable_custom_tag_end (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *tagname,
gpointer *data)
{
if (strcmp (tagname, "attributes") == 0)
_gtk_cell_layout_buildable_custom_tag_end (buildable, builder, child, tagname,
data);
else
parent_buildable_iface->custom_tag_end (buildable, builder, child, tagname,
data);
}
static GObject *
gtk_combo_box_buildable_get_internal_child (GtkBuildable *buildable,
GtkBuilder *builder,
const gchar *childname)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (buildable);
if (combo_box->priv->has_entry && strcmp (childname, "entry") == 0)
return G_OBJECT (gtk_bin_get_child (GTK_BIN (buildable)));
return parent_buildable_iface->get_internal_child (buildable, builder, childname);
}
#define __GTK_COMBO_BOX_C__
#include "gtkaliasdef.c"
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