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gtk2/gtk/gtkcombobox.c
Benjamin Otte a89c598617 combobox: Add workaround so evolution doesn't crash 
Removing the NULL checks in 7f60cab47d
caused evolution to crash. It chains up with NULL and that used to work.

This patch should be reverted for GTK 4.0.

https://bugzilla.gnome.org/show_bug.cgi?id=729496
2014-05-05 15:53:03 +02:00

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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, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "gtkcombobox.h"
#include "gtkadjustment.h"
#include "gtkcellareabox.h"
#include "gtktreemenu.h"
#include "gtkarrow.h"
#include "gtkbindings.h"
#include "gtkcelllayout.h"
#include "gtkcellrenderertext.h"
#include "gtkcellview.h"
#include "gtkeventbox.h"
#include "gtkframe.h"
#include "gtkbox.h"
#include "gtkliststore.h"
#include "gtkmain.h"
#include "gtkmenuprivate.h"
#include "gtkmenushellprivate.h"
#include "gtkscrolledwindow.h"
#include "gtkseparatormenuitem.h"
#include "deprecated/gtktearoffmenuitem.h"
#include "gtktogglebutton.h"
#include "gtktreeselection.h"
#include "gtkseparator.h"
#include "gtkwidgetpath.h"
#include "gtkwidgetprivate.h"
#include "gtkwindow.h"
#include "gtktypebuiltins.h"
#include "gtkprivate.h"
#include <gobject/gvaluecollector.h>
#include <string.h>
#include <stdarg.h>
#include "gtkmarshalers.h"
#include "gtkintl.h"
#include "gtkentryprivate.h"
#include "gtktreeprivate.h"
#include "a11y/gtkcomboboxaccessible.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 */
struct _GtkComboBoxPrivate
{
GtkTreeModel *model;
GtkCellArea *area;
gint col_column;
gint row_column;
gint wrap_width;
GtkShadowType shadow_type;
gint active; /* Only temporary */
GtkTreeRowReference *active_row;
GtkWidget *tree_view;
GtkWidget *cell_view;
GtkWidget *cell_view_frame;
GtkWidget *button;
GtkWidget *box;
GtkWidget *arrow;
GtkWidget *separator;
GtkWidget *popup_widget;
GtkWidget *popup_window;
GtkWidget *scrolled_window;
gulong inserted_id;
gulong deleted_id;
gulong reordered_id;
gulong changed_id;
guint popup_idle_id;
guint activate_button;
guint32 activate_time;
guint scroll_timer;
guint resize_idle_id;
/* For "has-entry" specific behavior we track
* an automated cell renderer and text column
*/
gint text_column;
GtkCellRenderer *text_renderer;
gint id_column;
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;
guint popup_fixed_width : 1;
GtkTreeViewRowSeparatorFunc row_separator_func;
gpointer row_separator_data;
GDestroyNotify row_separator_destroy;
GdkDevice *grab_pointer;
GdkDevice *grab_keyboard;
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,
FORMAT_ENTRY_TEXT,
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,
PROP_POPUP_FIXED_WIDTH,
PROP_ID_COLUMN,
PROP_ACTIVE_ID,
PROP_CELL_AREA
};
static guint combo_box_signals[LAST_SIGNAL] = {0,};
#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 (GtkWidget *widget);
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_flags_changed (GtkWidget *widget,
GtkStateFlags previous);
static void gtk_combo_box_grab_focus (GtkWidget *widget);
static void gtk_combo_box_style_updated (GtkWidget *widget);
static void gtk_combo_box_button_toggled (GtkWidget *widget,
gpointer data);
static void gtk_combo_box_button_state_flags_changed (GtkWidget *widget,
GtkStateFlags previous,
gpointer data);
static void gtk_combo_box_add (GtkContainer *container,
GtkWidget *widget);
static void gtk_combo_box_remove (GtkContainer *container,
GtkWidget *widget);
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 void gtk_combo_box_unset_model (GtkComboBox *combo_box);
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_draw (GtkWidget *widget,
cairo_t *cr);
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 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_update_title (GtkComboBox *combo_box);
static void gtk_combo_box_menu_destroy (GtkComboBox *combo_box);
static gboolean gtk_combo_box_menu_button_press (GtkWidget *widget,
GdkEventButton *event,
gpointer user_data);
static void gtk_combo_box_menu_activate (GtkWidget *menu,
const gchar *path,
GtkComboBox *combo_box);
static void gtk_combo_box_update_sensitivity (GtkComboBox *combo_box);
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);
/* cell layout */
static GtkCellArea *gtk_combo_box_cell_layout_get_area (GtkCellLayout *cell_layout);
static gboolean gtk_combo_box_mnemonic_activate (GtkWidget *widget,
gboolean group_cycling);
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);
static gchar *gtk_combo_box_format_entry_text (GtkComboBox *combo_box,
const gchar *path);
/* 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);
static void gtk_combo_box_get_preferred_width (GtkWidget *widget,
gint *minimum_size,
gint *natural_size);
static void gtk_combo_box_get_preferred_height (GtkWidget *widget,
gint *minimum_size,
gint *natural_size);
static void gtk_combo_box_get_preferred_width_for_height (GtkWidget *widget,
gint avail_size,
gint *minimum_size,
gint *natural_size);
static void gtk_combo_box_get_preferred_height_for_width (GtkWidget *widget,
gint avail_size,
gint *minimum_size,
gint *natural_size);
static GtkWidgetPath *gtk_combo_box_get_path_for_child (GtkContainer *container,
GtkWidget *child);
static void gtk_combo_box_direction_changed (GtkWidget *widget,
GtkTextDirection previous_direction);
G_DEFINE_TYPE_WITH_CODE (GtkComboBox, gtk_combo_box, GTK_TYPE_BIN,
G_ADD_PRIVATE (GtkComboBox)
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;
GtkContainerClass *container_class;
GtkWidgetClass *widget_class;
GtkBindingSet *binding_set;
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;
container_class->get_path_for_child = gtk_combo_box_get_path_for_child;
gtk_container_class_handle_border_width (container_class);
widget_class = (GtkWidgetClass *)klass;
widget_class->size_allocate = gtk_combo_box_size_allocate;
widget_class->draw = gtk_combo_box_draw;
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_updated = gtk_combo_box_style_updated;
widget_class->state_flags_changed = gtk_combo_box_state_flags_changed;
widget_class->get_preferred_width = gtk_combo_box_get_preferred_width;
widget_class->get_preferred_height = gtk_combo_box_get_preferred_height;
widget_class->get_preferred_height_for_width = gtk_combo_box_get_preferred_height_for_width;
widget_class->get_preferred_width_for_height = gtk_combo_box_get_preferred_width_for_height;
widget_class->destroy = gtk_combo_box_destroy;
widget_class->direction_changed = gtk_combo_box_direction_changed;
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;
klass->format_entry_text = gtk_combo_box_format_entry_text;
/* 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 the entry of a combo box
* with an entry.
*
* 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
* [keybinding signal][GtkBindingSignal]
* 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
* [keybinding signal][GtkBindingSignal]
* 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
* [keybinding signal][GtkBindingSignal]
* 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);
/**
* GtkComboBox::format-entry-text:
* @combo: the object which received the signal
* @path: the GtkTreePath string from the combo box's current model to format text for
*
* For combo boxes that are created with an entry (See GtkComboBox:has-entry).
*
* A signal which allows you to change how the text displayed in a combo box's
* entry is displayed.
*
* Connect a signal handler which returns an allocated string representing
* @path. That string will then be used to set the text in the combo box's entry.
* The default signal handler uses the text from the GtkComboBox::entry-text-column
* model column.
*
* Here's an example signal handler which fetches data from the model and
* displays it in the entry.
* |[<!-- language="C" -->
* static gchar*
* format_entry_text_callback (GtkComboBox *combo,
* const gchar *path,
* gpointer user_data)
* {
* GtkTreeIter iter;
* GtkTreeModel model;
* gdouble value;
*
* model = gtk_combo_box_get_model (combo);
*
* gtk_tree_model_get_iter_from_string (model, &iter, path);
* gtk_tree_model_get (model, &iter,
* THE_DOUBLE_VALUE_COLUMN, &value,
* -1);
*
* return g_strdup_printf ("%g", value);
* }
* ]|
*
* Returns: (transfer full): a newly allocated string representing @path
* for the current GtkComboBox model.
*
* Since: 3.4
*/
combo_box_signals[FORMAT_ENTRY_TEXT] =
g_signal_new (I_("format-entry-text"),
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkComboBoxClass, format_entry_text),
_gtk_single_string_accumulator, NULL,
_gtk_marshal_STRING__STRING,
G_TYPE_STRING, 1, G_TYPE_STRING);
/* key bindings */
binding_set = gtk_binding_set_by_class (widget_class);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_Down, GDK_MOD1_MASK,
"popup", 0);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Down, GDK_MOD1_MASK,
"popup", 0);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_Up, GDK_MOD1_MASK,
"popdown", 0);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Up, GDK_MOD1_MASK,
"popdown", 0);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_Escape, 0,
"popdown", 0);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_Up, 0,
"move-active", 1,
GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_STEP_UP);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Up, 0,
"move-active", 1,
GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_STEP_UP);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_Page_Up, 0,
"move-active", 1,
GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_PAGE_UP);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Page_Up, 0,
"move-active", 1,
GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_PAGE_UP);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_Home, 0,
"move-active", 1,
GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_START);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Home, 0,
"move-active", 1,
GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_START);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_Down, 0,
"move-active", 1,
GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_STEP_DOWN);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Down, 0,
"move-active", 1,
GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_STEP_DOWN);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_Page_Down, 0,
"move-active", 1,
GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_PAGE_DOWN);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Page_Down, 0,
"move-active", 1,
GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_PAGE_DOWN);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_End, 0,
"move-active", 1,
GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_END);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_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
* `gtk_tree_path_get_indices (path)[0]`,
* where `path` 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
*
* Deprecated: 3.10
*/
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 | G_PARAM_DEPRECATED));
/**
* 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
*
* Deprecated: 3.10
*/
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 | G_PARAM_DEPRECATED));
/**
* 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));
/**
* GtkComboBox:id-column:
*
* The column in the combo box's model that provides string
* IDs for the values in the model, if != -1.
*
* Since: 3.0
*/
g_object_class_install_property (object_class,
PROP_ID_COLUMN,
g_param_spec_int ("id-column",
P_("ID Column"),
P_("The column in the combo box's model that provides "
"string IDs for the values in the model"),
-1, G_MAXINT, -1,
GTK_PARAM_READWRITE));
/**
* GtkComboBox:active-id:
*
* The value of the ID column of the active row.
*
* Since: 3.0
*/
g_object_class_install_property (object_class,
PROP_ACTIVE_ID,
g_param_spec_string ("active-id",
P_("Active id"),
P_("The value of the id column "
"for the active row"),
NULL, GTK_PARAM_READWRITE));
/**
* GtkComboBox:popup-fixed-width:
*
* Whether the popup's width should be a fixed width matching the
* allocated width of the combo box.
*
* Since: 3.0
*/
g_object_class_install_property (object_class,
PROP_POPUP_FIXED_WIDTH,
g_param_spec_boolean ("popup-fixed-width",
P_("Popup Fixed Width"),
P_("Whether the popup's width should be a "
"fixed width matching the allocated width "
"of the combo box"),
TRUE,
GTK_PARAM_READWRITE));
/**
* GtkComboBox:cell-area:
*
* The #GtkCellArea used to layout cell renderers for this combo box.
*
* If no area is specified when creating the combo box with gtk_combo_box_new_with_area()
* a horizontally oriented #GtkCellAreaBox will be used.
*
* Since: 3.0
*/
g_object_class_install_property (object_class,
PROP_CELL_AREA,
g_param_spec_object ("cell-area",
P_("Cell Area"),
P_("The GtkCellArea used to layout cells"),
GTK_TYPE_CELL_AREA,
GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
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:arrow-scaling:
*
* Sets the amount of space used up by the combobox arrow,
* proportional to the font size.
*
* Since: 3.2
*/
gtk_widget_class_install_style_property (widget_class,
g_param_spec_float ("arrow-scaling",
P_("Arrow Scaling"),
P_("The amount of space used by the arrow"),
0,
2.0,
1.0,
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));
gtk_widget_class_set_accessible_type (widget_class, GTK_TYPE_COMBO_BOX_ACCESSIBLE);
}
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->get_area = gtk_combo_box_cell_layout_get_area;
}
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;
combo_box->priv = gtk_combo_box_get_instance_private (combo_box);
priv = combo_box->priv;
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->popup_fixed_width = TRUE;
priv->text_column = -1;
priv->text_renderer = NULL;
priv->id_column = -1;
}
static void
gtk_combo_box_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (object);
GtkComboBoxPrivate *priv = combo_box->priv;
GtkCellArea *area;
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:
G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
gtk_combo_box_set_add_tearoffs (combo_box, g_value_get_boolean (value));
G_GNUC_END_IGNORE_DEPRECATIONS;
break;
case PROP_HAS_FRAME:
priv->has_frame = g_value_get_boolean (value);
if (priv->has_entry)
{
GtkWidget *child;
child = gtk_bin_get_child (GTK_BIN (combo_box));
gtk_entry_set_has_frame (GTK_ENTRY (child), 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:
G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
gtk_combo_box_set_title (combo_box, g_value_get_string (value));
G_GNUC_END_IGNORE_DEPRECATIONS;
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_POPUP_FIXED_WIDTH:
gtk_combo_box_set_popup_fixed_width (combo_box,
g_value_get_boolean (value));
break;
case PROP_EDITING_CANCELED:
priv->editing_canceled = g_value_get_boolean (value);
break;
case PROP_HAS_ENTRY:
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;
case PROP_ID_COLUMN:
gtk_combo_box_set_id_column (combo_box, g_value_get_int (value));
break;
case PROP_ACTIVE_ID:
gtk_combo_box_set_active_id (combo_box, g_value_get_string (value));
break;
case PROP_CELL_AREA:
/* Construct-only, can only be assigned once */
area = g_value_get_object (value);
if (area)
{
if (priv->area != NULL)
{
g_warning ("cell-area has already been set, ignoring construct property");
g_object_ref_sink (area);
g_object_unref (area);
}
else
priv->area = g_object_ref_sink (area);
}
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 = combo_box->priv;
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_GNUC_BEGIN_IGNORE_DEPRECATIONS;
g_value_set_boolean (value, gtk_combo_box_get_add_tearoffs (combo_box));
G_GNUC_END_IGNORE_DEPRECATIONS;
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_GNUC_BEGIN_IGNORE_DEPRECATIONS;
g_value_set_string (value, gtk_combo_box_get_title (combo_box));
G_GNUC_END_IGNORE_DEPRECATIONS;
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_POPUP_FIXED_WIDTH:
g_value_set_boolean (value, combo_box->priv->popup_fixed_width);
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;
case PROP_ID_COLUMN:
g_value_set_int (value, priv->id_column);
break;
case PROP_ACTIVE_ID:
g_value_set_string (value, gtk_combo_box_get_active_id (combo_box));
break;
case PROP_CELL_AREA:
g_value_set_object (value, priv->area);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_combo_box_state_flags_changed (GtkWidget *widget,
GtkStateFlags 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)
{
GtkStyleContext *context;
GtkStateFlags state;
GdkRGBA color;
context = gtk_widget_get_style_context (widget);
state = gtk_widget_get_state_flags (widget);
gtk_style_context_get_background_color (context, state, &color);
gtk_cell_view_set_background_rgba (GTK_CELL_VIEW (priv->cell_view), &color);
}
}
gtk_widget_queue_draw (widget);
}
static void
gtk_combo_box_button_state_flags_changed (GtkWidget *widget,
GtkStateFlags 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)
gtk_widget_set_state_flags (priv->cell_view,
gtk_widget_get_state_flags (widget),
TRUE);
}
gtk_widget_queue_draw (widget);
}
static void
gtk_combo_box_invalidate_order_foreach (GtkWidget *widget)
{
_gtk_widget_invalidate_style_context (widget, GTK_CSS_CHANGE_POSITION | GTK_CSS_CHANGE_SIBLING_POSITION);
}
static void
gtk_combo_box_invalidate_order (GtkComboBox *combo_box)
{
gtk_container_forall (GTK_CONTAINER (combo_box),
(GtkCallback) gtk_combo_box_invalidate_order_foreach,
NULL);
}
static void
gtk_combo_box_direction_changed (GtkWidget *widget,
GtkTextDirection previous_direction)
{
gtk_combo_box_invalidate_order (GTK_COMBO_BOX (widget));
}
static GtkWidgetPath *
gtk_combo_box_get_path_for_child (GtkContainer *container,
GtkWidget *child)
{
GtkComboBoxPrivate *priv = GTK_COMBO_BOX (container)->priv;
GtkWidgetPath *path;
GtkWidget *widget;
gboolean found = FALSE;
GList *visible_children, *l;
GtkWidgetPath *sibling_path;
int pos;
path = _gtk_widget_create_path (GTK_WIDGET (container));
if (gtk_widget_get_visible (child))
{
visible_children = NULL;
if (priv->button && gtk_widget_get_visible (priv->button))
visible_children = g_list_prepend (visible_children, priv->button);
if (priv->cell_view_frame && gtk_widget_get_visible (priv->cell_view_frame))
visible_children = g_list_prepend (visible_children, priv->cell_view_frame);
widget = gtk_bin_get_child (GTK_BIN (container));
if (widget && gtk_widget_get_visible (widget))
visible_children = g_list_prepend (visible_children, widget);
if (gtk_widget_get_direction (GTK_WIDGET (container)) == GTK_TEXT_DIR_RTL)
visible_children = g_list_reverse (visible_children);
pos = 0;
for (l = visible_children; l; l = l->next)
{
widget = l->data;
if (widget == child)
{
found = TRUE;
break;
}
pos++;
}
}
if (found)
{
sibling_path = gtk_widget_path_new ();
for (l = visible_children; l; l = l->next)
gtk_widget_path_append_for_widget (sibling_path, l->data);
gtk_widget_path_append_with_siblings (path, sibling_path, pos);
g_list_free (visible_children);
gtk_widget_path_unref (sibling_path);
}
else
{
gtk_widget_path_append_for_widget (path, child);
}
return path;
}
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_updated (GtkWidget *widget)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (widget);
GtkComboBoxPrivate *priv = combo_box->priv;
GtkWidget *child;
GTK_WIDGET_CLASS (gtk_combo_box_parent_class)->style_updated (widget);
gtk_combo_box_check_appearance (combo_box);
if (priv->tree_view && priv->cell_view)
{
GtkStyleContext *context;
GtkStateFlags state;
GdkRGBA color;
context = gtk_widget_get_style_context (widget);
state = gtk_widget_get_state_flags (widget);
gtk_style_context_get_background_color (context, state, &color);
gtk_cell_view_set_background_rgba (GTK_CELL_VIEW (priv->cell_view), &color);
}
child = gtk_bin_get_child (GTK_BIN (combo_box));
if (GTK_IS_ENTRY (child))
g_object_set (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_set_child (GTK_BIN (container), NULL);
gtk_widget_queue_resize (GTK_WIDGET (container));
}
gtk_widget_set_parent (widget, GTK_WIDGET (container));
_gtk_bin_set_child (GTK_BIN (container), 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 (gtk_widget_get_parent (priv->separator)),
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_set_is_cell_renderer (GTK_ENTRY (widget), 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_set_is_cell_renderer (GTK_ENTRY (widget), FALSE);
}
}
if (widget == priv->cell_view)
priv->cell_view = NULL;
gtk_widget_unparent (widget);
_gtk_bin_set_child (GTK_BIN (container), NULL);
if (gtk_widget_in_destruction (GTK_WIDGET (combo_box)))
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_set_child (GTK_BIN (container), priv->cell_view);
gtk_widget_show (priv->cell_view);
gtk_cell_view_set_model (GTK_CELL_VIEW (priv->cell_view),
priv->model);
}
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 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->priv->toplevel,
gtk_combo_box_menu_show,
combo_box);
g_signal_handlers_disconnect_by_func (menu->priv->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)->priv->toplevel, "show",
G_CALLBACK (gtk_combo_box_menu_show), combo_box);
g_signal_connect (GTK_MENU (popup)->priv->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
get_widget_padding_and_border (GtkWidget *widget,
GtkBorder *padding)
{
GtkStyleContext *context;
GtkStateFlags state;
GtkBorder tmp;
context = gtk_widget_get_style_context (widget);
state = gtk_style_context_get_state (context);
gtk_style_context_get_padding (context, state, padding);
gtk_style_context_get_border (context, state, &tmp);
padding->top += tmp.top;
padding->right += tmp.right;
padding->bottom += tmp.bottom;
padding->left += tmp.left;
}
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);
GtkAllocation child_allocation;
gint sx, sy;
GtkWidget *child;
GtkRequisition req;
GdkScreen *screen;
gint monitor_num;
GdkRectangle monitor;
GtkBorder padding;
/* FIXME: is using the size request here broken? */
child = gtk_bin_get_child (GTK_BIN (combo_box));
sx = sy = 0;
gtk_widget_get_allocation (child, &child_allocation);
if (!gtk_widget_get_has_window (child))
{
sx += child_allocation.x;
sy += child_allocation.y;
}
gdk_window_get_root_coords (gtk_widget_get_window (child),
sx, sy, &sx, &sy);
get_widget_padding_and_border (GTK_WIDGET (combo_box), &padding);
if (gtk_widget_get_direction (GTK_WIDGET (combo_box)) == GTK_TEXT_DIR_RTL)
sx += padding.left;
else
sx -= padding.left;
if (combo_box->priv->popup_fixed_width)
gtk_widget_get_preferred_size (GTK_WIDGET (menu), &req, NULL);
else
gtk_widget_get_preferred_size (GTK_WIDGET (menu), NULL, &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_get_window (GTK_WIDGET (combo_box)));
gdk_screen_get_monitor_workarea (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;
GtkAllocation allocation;
GtkAllocation child_allocation;
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);
active = gtk_menu_get_active (GTK_MENU (combo_box->priv->popup_widget));
gtk_widget_get_allocation (widget, &allocation);
menu_xpos = allocation.x;
menu_ypos = allocation.y + allocation.height / 2 - 2;
if (combo_box->priv->popup_fixed_width)
gtk_widget_get_preferred_width (GTK_WIDGET (menu), &menu_width, NULL);
else
gtk_widget_get_preferred_width (GTK_WIDGET (menu), NULL, &menu_width);
if (active != NULL)
{
gtk_widget_get_allocation (active, &child_allocation);
menu_ypos -= child_allocation.height / 2;
}
children = GTK_MENU_SHELL (combo_box->priv->popup_widget)->priv->children;
while (children)
{
child = children->data;
if (active == child)
break;
if (gtk_widget_get_visible (child))
{
gtk_widget_get_allocation (child, &child_allocation);
menu_ypos -= child_allocation.height;
}
children = children->next;
}
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
menu_xpos = menu_xpos + allocation.width - menu_width;
gdk_window_get_root_coords (gtk_widget_get_window (widget),
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)->priv->toplevel))
gtk_window_set_type_hint (GTK_WINDOW (GTK_MENU (priv->popup_widget)->priv->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;
GtkAllocation allocation;
GdkScreen *screen;
gint monitor_num;
GdkRectangle monitor;
GtkRequisition popup_req;
GtkPolicyType hpolicy, vpolicy;
GdkWindow *window;
/* under windows, the drop down list is as wide as the combo box itself.
see bug #340204 */
GtkWidget *widget = GTK_WIDGET (combo_box);
*x = *y = 0;
gtk_widget_get_allocation (widget, &allocation);
if (!gtk_widget_get_has_window (widget))
{
*x += allocation.x;
*y += allocation.y;
}
window = gtk_widget_get_window (widget);
gdk_window_get_root_coords (gtk_widget_get_window (widget),
*x, *y, x, y);
*width = allocation.width;
hpolicy = vpolicy = GTK_POLICY_NEVER;
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->scrolled_window),
hpolicy, vpolicy);
if (combo_box->priv->popup_fixed_width)
{
gtk_widget_get_preferred_size (priv->scrolled_window, &popup_req, NULL);
if (popup_req.width > *width)
{
hpolicy = GTK_POLICY_ALWAYS;
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->scrolled_window),
hpolicy, vpolicy);
}
}
else
{
/* XXX This code depends on treeviews properly reporting their natural width
* list-mode menus won't fill up to their natural width until then */
gtk_widget_get_preferred_size (priv->scrolled_window, NULL, &popup_req);
if (popup_req.width > *width)
{
hpolicy = GTK_POLICY_NEVER;
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->scrolled_window),
hpolicy, vpolicy);
*width = popup_req.width;
}
}
*height = popup_req.height;
screen = gtk_widget_get_screen (GTK_WIDGET (combo_box));
monitor_num = gdk_screen_get_monitor_at_window (screen, window);
gdk_screen_get_monitor_workarea (screen, monitor_num, &monitor);
if (gtk_widget_get_direction (GTK_WIDGET (combo_box)) == GTK_TEXT_DIR_RTL)
*x = *x + allocation.width - *width;
if (*x < monitor.x)
*x = monitor.x;
else if (*x + *width > monitor.x + monitor.width)
*x = monitor.x + monitor.width - *width;
if (*y + allocation.height + *height <= monitor.y + monitor.height)
*y += allocation.height;
else if (*y - *height >= monitor.y)
*y -= *height;
else if (monitor.y + monitor.height - (*y + allocation.height) > *y - monitor.y)
{
*y += 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_layout_is_sensitive (GtkCellLayout *layout)
{
GList *cells, *list;
gboolean sensitive;
cells = gtk_cell_layout_get_cells (layout);
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
cell_is_sensitive (GtkCellRenderer *cell,
gpointer data)
{
gboolean *sensitive = data;
g_object_get (cell, "sensitive", sensitive, NULL);
return *sensitive;
}
static gboolean
tree_column_row_is_sensitive (GtkComboBox *combo_box,
GtkTreeIter *iter)
{
GtkComboBoxPrivate *priv = combo_box->priv;
if (priv->row_separator_func)
{
if (priv->row_separator_func (priv->model, iter,
priv->row_separator_data))
return FALSE;
}
if (priv->area)
{
gboolean sensitive;
gtk_cell_area_apply_attributes (priv->area, priv->model, iter, FALSE, FALSE);
sensitive = FALSE;
gtk_cell_area_foreach (priv->area, cell_is_sensitive, &sensitive);
return sensitive;
}
return TRUE;
}
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_get_child (GTK_BIN (item));
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_layout_is_sensitive (GTK_CELL_LAYOUT (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;
gint width, min_width, nat_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)
{
GtkAllocation allocation;
gtk_widget_get_allocation (GTK_WIDGET (combo_box), &allocation);
width = allocation.width;
gtk_widget_set_size_request (priv->popup_widget, -1, -1);
gtk_widget_get_preferred_width (priv->popup_widget, &min_width, &nat_width);
if (combo_box->priv->popup_fixed_width)
width = MAX (width, min_width);
else
width = MAX (width, nat_width);
gtk_widget_set_size_request (priv->popup_widget, 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,
GdkDevice *keyboard,
GdkDevice *pointer,
guint32 activate_time)
{
if (keyboard &&
gdk_device_grab (keyboard, window,
GDK_OWNERSHIP_WINDOW, TRUE,
GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK,
NULL, activate_time) != GDK_GRAB_SUCCESS)
return FALSE;
if (pointer &&
gdk_device_grab (pointer, window,
GDK_OWNERSHIP_WINDOW, TRUE,
GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
GDK_POINTER_MOTION_MASK,
NULL, activate_time) != GDK_GRAB_SUCCESS)
{
if (keyboard)
gdk_device_ungrab (keyboard, activate_time);
return FALSE;
}
return TRUE;
}
static gboolean
gtk_combo_box_grab_broken_event (GtkWidget *widget,
GdkEventGrabBroken *event,
gpointer user_data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (user_data);
if (event->grab_window == NULL)
gtk_combo_box_popdown (combo_box);
return TRUE;
}
/**
* 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);
}
/**
* gtk_combo_box_popup_for_device:
* @combo_box: a #GtkComboBox
* @device: a #GdkDevice
*
* Pops up the menu or dropdown list of @combo_box, the popup window
* will be grabbed so only @device and its associated pointer/keyboard
* are the only #GdkDevices able to send events to it.
*
* Since: 3.0
**/
void
gtk_combo_box_popup_for_device (GtkComboBox *combo_box,
GdkDevice *device)
{
GtkComboBoxPrivate *priv = combo_box->priv;
gint x, y, width, height;
GtkTreePath *path = NULL, *ppath;
GtkWidget *toplevel;
GdkDevice *keyboard, *pointer;
guint32 time;
g_return_if_fail (GTK_IS_COMBO_BOX (combo_box));
g_return_if_fail (GDK_IS_DEVICE (device));
if (!gtk_widget_get_realized (GTK_WIDGET (combo_box)))
return;
if (gtk_widget_get_mapped (priv->popup_widget))
return;
if (priv->grab_pointer && priv->grab_keyboard)
return;
time = gtk_get_current_event_time ();
if (gdk_device_get_source (device) == GDK_SOURCE_KEYBOARD)
{
keyboard = device;
pointer = gdk_device_get_associated_device (device);
}
else
{
pointer = device;
keyboard = gdk_device_get_associated_device (device);
}
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 (gtk_widget_get_window (priv->popup_window),
keyboard, pointer, time))
{
gtk_widget_hide (priv->popup_window);
return;
}
gtk_device_grab_add (priv->popup_window, pointer, TRUE);
priv->grab_pointer = pointer;
priv->grab_keyboard = keyboard;
g_signal_connect (priv->popup_window,
"grab-broken-event",
G_CALLBACK (gtk_combo_box_grab_broken_event),
combo_box);
}
static void
gtk_combo_box_real_popup (GtkComboBox *combo_box)
{
GdkDevice *device;
device = gtk_get_current_event_device ();
if (!device)
{
GdkDeviceManager *device_manager;
GdkDisplay *display;
GList *devices;
display = gtk_widget_get_display (GTK_WIDGET (combo_box));
device_manager = gdk_display_get_device_manager (display);
/* No device was set, pick the first master device */
devices = gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_MASTER);
device = devices->data;
g_list_free (devices);
}
gtk_combo_box_popup_for_device (combo_box, device);
}
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;
if (priv->grab_keyboard)
gdk_device_ungrab (priv->grab_keyboard, GDK_CURRENT_TIME);
gdk_device_ungrab (priv->grab_pointer, GDK_CURRENT_TIME);
gtk_device_grab_remove (priv->popup_window, priv->grab_pointer);
gtk_widget_hide (priv->popup_window);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (priv->button),
FALSE);
priv->grab_pointer = NULL;
priv->grab_keyboard = NULL;
}
#define GTK_COMBO_BOX_SIZE_ALLOCATE_BUTTON \
GtkAllocation button_allocation; \
gtk_widget_get_preferred_size (combo_box->priv->button, \
&req, NULL); \
\
if (is_rtl) \
button_allocation.x = allocation->x; \
else \
button_allocation.x = allocation->x + allocation->width \
- req.width; \
\
button_allocation.y = allocation->y; \
button_allocation.width = MAX (1, req.width); \
button_allocation.height = allocation->height; \
button_allocation.height = MAX (1, button_allocation.height); \
\
gtk_widget_size_allocate (combo_box->priv->button, \
&button_allocation);
static void
gtk_combo_box_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (widget);
GtkComboBoxPrivate *priv = combo_box->priv;
GtkWidget *child_widget;
GtkAllocation child;
GtkRequisition req;
gboolean is_rtl = gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL;
GtkBorder padding;
gtk_widget_set_allocation (widget, allocation);
child_widget = gtk_bin_get_child (GTK_BIN (widget));
get_widget_padding_and_border (widget, &padding);
allocation->x += padding.left;
allocation->y += padding.top;
allocation->width -= padding.left + padding.right;
allocation->height -= padding.top + padding.bottom;
if (!priv->tree_view)
{
if (priv->cell_view)
{
GtkBorder button_padding;
gint width;
guint border_width;
border_width = gtk_container_get_border_width (GTK_CONTAINER (priv->button));
get_widget_padding_and_border (priv->button, &button_padding);
/* menu mode; child_widget is priv->cell_view.
* Allocate the button to the full combobox allocation (minus the
* padding).
*/
gtk_widget_size_allocate (priv->button, allocation);
child.x = allocation->x;
child.y = allocation->y;
width = allocation->width;
child.height = allocation->height;
if (!priv->is_cell_renderer)
{
/* restrict allocation of the child into the button box
* if we're not in cell renderer mode.
*/
child.x += border_width + button_padding.left;
child.y += border_width + button_padding.top;
width -= 2 * border_width +
button_padding.left + button_padding.right;
child.height -= 2 * border_width +
button_padding.top + button_padding.bottom;
}
/* allocate the box containing the separator and the arrow */
gtk_widget_get_preferred_size (priv->box, &req, NULL);
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->box, &child);
if (is_rtl)
{
child.x += req.width;
child.width = allocation->x + allocation->width
- border_width - child.x - button_padding.right;
}
else
{
child.width = child.x;
child.x = allocation->x
+ border_width + button_padding.left;
child.width -= child.x;
}
if (gtk_widget_get_visible (priv->popup_widget))
{
gint width, menu_width;
if (priv->wrap_width == 0)
{
GtkAllocation combo_box_allocation;
gtk_widget_get_allocation (GTK_WIDGET (combo_box), &combo_box_allocation);
width = combo_box_allocation.width;
gtk_widget_set_size_request (priv->popup_widget, -1, -1);
if (combo_box->priv->popup_fixed_width)
gtk_widget_get_preferred_width (priv->popup_widget, &menu_width, NULL);
else
gtk_widget_get_preferred_width (priv->popup_widget, NULL, &menu_width);
gtk_widget_set_size_request (priv->popup_widget,
MAX (width, menu_width), -1);
}
/* reposition the menu after giving it a new width */
gtk_menu_reposition (GTK_MENU (priv->popup_widget));
}
child.width = MAX (1, child.width);
child.height = MAX (1, child.height);
gtk_widget_size_allocate (child_widget, &child);
}
else
{
/* menu mode; child_widget has been set with gtk_container_add().
* E.g. it might be a GtkEntry if priv->has_entry is TRUE.
* Allocate the button at the far end, according to the direction
* of the widget.
*/
GTK_COMBO_BOX_SIZE_ALLOCATE_BUTTON
/* After the macro, button_allocation has the button allocation rect */
if (is_rtl)
child.x = button_allocation.x + button_allocation.width;
else
child.x = allocation->x;
child.y = allocation->y;
child.width = allocation->width - button_allocation.width;
child.height = button_allocation.height;
child.width = MAX (1, child.width);
gtk_widget_size_allocate (child_widget, &child);
}
}
else
{
/* list mode; child_widget might be either priv->cell_view or a child
* added with gtk_container_add().
*/
/* After the macro, button_allocation has the button allocation rect */
GTK_COMBO_BOX_SIZE_ALLOCATE_BUTTON
if (is_rtl)
child.x = button_allocation.x + button_allocation.width;
else
child.x = allocation->x;
child.y = allocation->y;
child.width = allocation->width - button_allocation.width;
child.height = button_allocation.height;
if (priv->cell_view_frame)
{
gtk_widget_size_allocate (priv->cell_view_frame, &child);
/* restrict allocation of the child into the frame box if it's present */
if (priv->has_frame)
{
GtkBorder frame_padding;
guint border_width;
border_width = gtk_container_get_border_width (GTK_CONTAINER (priv->cell_view_frame));
get_widget_padding_and_border (priv->cell_view_frame, &frame_padding);
child.x += border_width + frame_padding.left;
child.y += border_width + frame_padding.right;
child.width -= (2 * border_width) + frame_padding.left + frame_padding.right;
child.height -= (2 * border_width) + frame_padding.top + frame_padding.bottom;
}
}
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);
}
/* allocate the child */
child.width = MAX (1, child.width);
child.height = MAX (1, child.height);
gtk_widget_size_allocate (child_widget, &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);
}
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;
GtkWidget *child;
if (include_internals)
{
if (priv->button)
(* callback) (priv->button, callback_data);
if (priv->cell_view_frame)
(* callback) (priv->cell_view_frame, callback_data);
}
child = gtk_bin_get_child (GTK_BIN (container));
if (child)
(* callback) (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_draw (GtkWidget *widget,
cairo_t *cr)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (widget);
GtkComboBoxPrivate *priv = combo_box->priv;
if (priv->shadow_type != GTK_SHADOW_NONE)
{
GtkStyleContext *context;
context = gtk_widget_get_style_context (widget);
gtk_render_background (context, cr, 0, 0,
gtk_widget_get_allocated_width (widget),
gtk_widget_get_allocated_height (widget));
gtk_render_frame (context, cr, 0, 0,
gtk_widget_get_allocated_width (widget),
gtk_widget_get_allocated_height (widget));
}
gtk_container_propagate_draw (GTK_CONTAINER (widget),
priv->button, cr);
if (priv->tree_view && priv->cell_view_frame)
{
gtk_container_propagate_draw (GTK_CONTAINER (widget),
priv->cell_view_frame, cr);
}
gtk_container_propagate_draw (GTK_CONTAINER (widget),
gtk_bin_get_child (GTK_BIN (widget)),
cr);
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 gboolean
gtk_combo_box_row_separator_func (GtkTreeModel *model,
GtkTreeIter *iter,
GtkComboBox *combo)
{
GtkComboBoxPrivate *priv = combo->priv;
if (priv->row_separator_func)
return priv->row_separator_func (model, iter, priv->row_separator_data);
return FALSE;
}
static gboolean
gtk_combo_box_header_func (GtkTreeModel *model,
GtkTreeIter *iter,
GtkComboBox *combo)
{
/* Every submenu has a selectable header, however we
* can expose a method to make that configurable by
* the user (like row_separator_func is done) */
return TRUE;
}
static void
gtk_combo_box_menu_setup (GtkComboBox *combo_box,
gboolean add_children)
{
GtkComboBoxPrivate *priv = combo_box->priv;
GtkWidget *child;
GtkWidget *menu;
child = gtk_bin_get_child (GTK_BIN (combo_box));
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_widget_get_parent (child));
priv->box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
gtk_container_add (GTK_CONTAINER (priv->button), priv->box);
priv->separator = gtk_separator_new (GTK_ORIENTATION_VERTICAL);
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_add_events (priv->button, GDK_SCROLL_MASK);
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_widget_get_parent (child));
priv->arrow = gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_NONE);
gtk_container_add (GTK_CONTAINER (priv->button), priv->arrow);
gtk_widget_add_events (priv->button, GDK_SCROLL_MASK);
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-flags-changed",
G_CALLBACK (gtk_combo_box_button_state_flags_changed),
combo_box);
/* create our funky menu */
menu = _gtk_tree_menu_new_with_area (priv->area);
gtk_widget_set_name (menu, "gtk-combobox-popup-menu");
_gtk_tree_menu_set_model (GTK_TREE_MENU (menu), priv->model);
_gtk_tree_menu_set_wrap_width (GTK_TREE_MENU (menu), priv->wrap_width);
_gtk_tree_menu_set_row_span_column (GTK_TREE_MENU (menu), priv->row_column);
_gtk_tree_menu_set_column_span_column (GTK_TREE_MENU (menu), priv->col_column);
_gtk_tree_menu_set_tearoff (GTK_TREE_MENU (menu),
combo_box->priv->add_tearoffs);
g_signal_connect (menu, "menu-activate",
G_CALLBACK (gtk_combo_box_menu_activate), combo_box);
/* Chain our row_separator_func through */
_gtk_tree_menu_set_row_separator_func (GTK_TREE_MENU (menu),
(GtkTreeViewRowSeparatorFunc)gtk_combo_box_row_separator_func,
combo_box, NULL);
_gtk_tree_menu_set_header_func (GTK_TREE_MENU (menu),
(GtkTreeMenuHeaderFunc)gtk_combo_box_header_func,
combo_box, NULL);
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);
gtk_combo_box_update_title (combo_box);
}
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_flags_changed, combo_box);
g_signal_handlers_disconnect_matched (priv->popup_widget,
G_SIGNAL_MATCH_DATA,
0, 0, NULL,
gtk_combo_box_menu_activate, 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;
/* changing the popup window will unref the menu and the children */
}
/* 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 == GDK_BUTTON_PRIMARY)
{
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_activate (GtkWidget *menu,
const gchar *path,
GtkComboBox *combo_box)
{
GtkTreeIter iter;
if (gtk_tree_model_get_iter_from_string (combo_box->priv->model, &iter, path))
gtk_combo_box_set_active_iter (combo_box, &iter);
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);
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);
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)
{
gtk_tree_row_reference_reordered (G_OBJECT (user_data), path, iter, new_order);
}
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);
}
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);
g_source_set_name_by_id (priv->resize_idle_id, "[gtk+] list_popup_resize_idle");
}
}
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);
}
/*
* list style
*/
static void
gtk_combo_box_list_setup (GtkComboBox *combo_box)
{
GtkComboBoxPrivate *priv = combo_box->priv;
GtkTreeSelection *sel;
GtkWidget *child;
GtkWidget *widget = GTK_WIDGET (combo_box);
priv->button = gtk_toggle_button_new ();
child = gtk_bin_get_child (GTK_BIN (combo_box));
gtk_widget_set_parent (priv->button,
gtk_widget_get_parent (child));
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)
{
GtkStyleContext *context;
GtkStateFlags state;
GdkRGBA color;
context = gtk_widget_get_style_context (widget);
state = gtk_widget_get_state_flags (widget);
gtk_style_context_get_background_color (context, state, &color);
gtk_cell_view_set_background_rgba (GTK_CELL_VIEW (priv->cell_view), &color);
priv->box = gtk_event_box_new ();
gtk_widget_add_events (priv->box, GDK_SCROLL_MASK);
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_widget_get_parent (child));
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);
gtk_tree_view_set_row_separator_func (GTK_TREE_VIEW (priv->tree_view),
(GtkTreeViewRowSeparatorFunc)gtk_combo_box_row_separator_func,
combo_box, NULL);
if (priv->model)
gtk_tree_view_set_model (GTK_TREE_VIEW (priv->tree_view), priv->model);
gtk_tree_view_append_column (GTK_TREE_VIEW (priv->tree_view),
gtk_tree_view_column_new_with_area (priv->area));
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_for_device (combo_box, event->device);
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);
g_source_set_name_by_id (priv->scroll_timer, "[gtk+] gtk_combo_box_list_scroll_timeout");
}
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 (G_OBJECT (widget), event))
{
/* The menu hasn't managed the
* event, forward it to the combobox
*/
gtk_bindings_activate_event (G_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_KEY_Return || event->keyval == GDK_KEY_ISO_Enter || event->keyval == GDK_KEY_KP_Enter ||
event->keyval == GDK_KEY_space || event->keyval == GDK_KEY_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 (G_OBJECT (widget), event))
{
/* The list hasn't managed the
* event, forward it to the combobox
*/
gtk_bindings_activate_event (G_OBJECT (combo_box), event);
}
return TRUE;
}
static void
gtk_combo_box_list_auto_scroll (GtkComboBox *combo_box,
gint x,
gint y)
{
GtkAdjustment *adj;
GtkAllocation allocation;
GtkWidget *tree_view = combo_box->priv->tree_view;
gdouble value;
gtk_widget_get_allocation (tree_view, &allocation);
adj = gtk_scrolled_window_get_hadjustment (GTK_SCROLLED_WINDOW (combo_box->priv->scrolled_window));
if (adj && gtk_adjustment_get_upper (adj) - gtk_adjustment_get_lower (adj) > gtk_adjustment_get_page_size (adj))
{
if (x <= allocation.x &&
gtk_adjustment_get_lower (adj) < gtk_adjustment_get_value (adj))
{
value = gtk_adjustment_get_value (adj) - (allocation.x - x + 1);
gtk_adjustment_set_value (adj, value);
}
else if (x >= allocation.x + allocation.width &&
gtk_adjustment_get_upper (adj) - gtk_adjustment_get_page_size (adj) > gtk_adjustment_get_value (adj))
{
value = gtk_adjustment_get_value (adj) + (x - allocation.x - allocation.width + 1);
gtk_adjustment_set_value (adj, MAX (value, 0.0));
}
}
adj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (combo_box->priv->scrolled_window));
if (adj && gtk_adjustment_get_upper (adj) - gtk_adjustment_get_lower (adj) > gtk_adjustment_get_page_size (adj))
{
if (y <= allocation.y &&
gtk_adjustment_get_lower (adj) < gtk_adjustment_get_value (adj))
{
value = gtk_adjustment_get_value (adj) - (allocation.y - y + 1);
gtk_adjustment_set_value (adj, value);
}
else if (y >= allocation.height &&
gtk_adjustment_get_upper (adj) - gtk_adjustment_get_page_size (adj) > gtk_adjustment_get_value (adj))
{
value = gtk_adjustment_get_value (adj) + (y - allocation.height + 1);
gtk_adjustment_set_value (adj, MAX (value, 0.0));
}
}
}
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_device_position (gtk_widget_get_window (priv->tree_view),
priv->grab_pointer,
&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, *columns;
gboolean sensitive = FALSE;
columns = gtk_tree_view_get_columns (gtk_tree_selection_get_tree_view (selection));
for (list = 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 (!gtk_tree_view_column_get_visible (column))
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)
{
sensitive = TRUE;
break;
}
cell = cell->next;
}
g_list_free (cells);
}
g_list_free (columns);
return sensitive;
}
static void
gtk_combo_box_list_row_changed (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data)
{
/* XXX Do nothing ? */
}
/*
* GtkCellLayout implementation
*/
static GtkCellArea *
gtk_combo_box_cell_layout_get_area (GtkCellLayout *cell_layout)
{
GtkComboBox *combo = GTK_COMBO_BOX (cell_layout);
GtkComboBoxPrivate *priv = combo->priv;
if (G_UNLIKELY (!priv->area))
{
priv->area = gtk_cell_area_box_new ();
g_object_ref_sink (priv->area);
}
return priv->area;
}
/*
* public API
*/
/**
* gtk_combo_box_new:
*
* Creates a new empty #GtkComboBox.
*
* Returns: 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_area:
* @area: the #GtkCellArea to use to layout cell renderers
*
* Creates a new empty #GtkComboBox using @area to layout cells.
*
* Returns: A new #GtkComboBox.
*/
GtkWidget *
gtk_combo_box_new_with_area (GtkCellArea *area)
{
return g_object_new (GTK_TYPE_COMBO_BOX, "cell-area", area, NULL);
}
/**
* gtk_combo_box_new_with_area_and_entry:
* @area: the #GtkCellArea to use to layout cell renderers
*
* Creates a new empty #GtkComboBox with an entry.
*
* The new combo box will use @area to layout cells.
*
* Returns: A new #GtkComboBox.
*/
GtkWidget *
gtk_combo_box_new_with_area_and_entry (GtkCellArea *area)
{
return g_object_new (GTK_TYPE_COMBO_BOX,
"has-entry", TRUE,
"cell-area", area,
NULL);
}
/**
* gtk_combo_box_new_with_entry:
*
* Creates a new empty #GtkComboBox with an entry.
*
* Returns: A new #GtkComboBox.
*
* Since: 2.24
*/
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.
*
* Returns: 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:
* @model: A #GtkTreeModel
*
* Creates a new empty #GtkComboBox with an entry
* and with the model initialized to @model.
*
* Returns: A new #GtkComboBox
*
* Since: 2.24
*/
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);
if (GTK_IS_TREE_MENU (priv->popup_widget))
_gtk_tree_menu_set_wrap_width (GTK_TREE_MENU (priv->popup_widget), priv->wrap_width);
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;
if (GTK_IS_TREE_MENU (priv->popup_widget))
_gtk_tree_menu_set_row_span_column (GTK_TREE_MENU (priv->popup_widget), priv->row_column);
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;
if (GTK_IS_TREE_MENU (priv->popup_widget))
_gtk_tree_menu_set_column_span_column (GTK_TREE_MENU (priv->popup_widget), priv->col_column);
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
* `gtk_tree_path_get_indices (path)[0]`, where
* `path` is the #GtkTreePath of the active item.
*
* Returns: 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");
if (combo_box->priv->id_column >= 0)
g_object_notify (G_OBJECT (combo_box), "active-id");
}
/**
* 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.
*
* Returns: %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);
}
if (GTK_IS_TREE_MENU (combo_box->priv->popup_widget))
{
/* menu mode */
_gtk_tree_menu_set_model (GTK_TREE_MENU (combo_box->priv->popup_widget),
combo_box->priv->model);
}
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.
*
* Returns: (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;
}
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 (GtkWidget *widget)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (widget);
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_WIDGET_CLASS (gtk_combo_box_parent_class)->destroy (widget);
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)
{
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)
{
GtkTreePath *path;
gchar *path_str;
gchar *text = NULL;
model = gtk_combo_box_get_model (combo_box);
path = gtk_tree_model_get_path (model, &iter);
path_str = gtk_tree_path_to_string (path);
g_signal_handlers_block_by_func (entry,
gtk_combo_box_entry_contents_changed,
combo_box);
g_signal_emit (combo_box, combo_box_signals[FORMAT_ENTRY_TEXT], 0,
path_str, &text);
gtk_entry_set_text (entry, text);
g_signal_handlers_unblock_by_func (entry,
gtk_combo_box_entry_contents_changed,
combo_box);
gtk_tree_path_free (path);
g_free (text);
g_free (path_str);
}
}
}
static gchar *
gtk_combo_box_format_entry_text (GtkComboBox *combo_box,
const gchar *path)
{
GtkComboBoxPrivate *priv = combo_box->priv;
GtkTreeModel *model;
GtkTreeIter iter;
gchar *text = NULL;
if (priv->text_column >= 0)
{
model = gtk_combo_box_get_model (combo_box);
gtk_tree_model_get_iter_from_string (model, &iter, path);
gtk_tree_model_get (model, &iter,
priv->text_column, &text,
-1);
}
return text;
}
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->area)
{
priv->area = gtk_cell_area_box_new ();
g_object_ref_sink (priv->area);
}
priv->cell_view = gtk_cell_view_new_with_context (priv->area, NULL);
gtk_cell_view_set_fit_model (GTK_CELL_VIEW (priv->cell_view), TRUE);
gtk_cell_view_set_model (GTK_CELL_VIEW (priv->cell_view), priv->model);
gtk_widget_set_parent (priv->cell_view, GTK_WIDGET (combo_box));
_gtk_bin_set_child (GTK_BIN (combo_box), priv->cell_view);
gtk_widget_show (priv->cell_view);
gtk_combo_box_check_appearance (combo_box);
if (priv->has_entry)
{
GtkWidget *entry;
GtkStyleContext *context;
entry = gtk_entry_new ();
gtk_widget_show (entry);
gtk_container_add (GTK_CONTAINER (combo_box), entry);
context = gtk_widget_get_style_context (GTK_WIDGET (combo_box));
gtk_style_context_add_class (context, GTK_STYLE_CLASS_COMBOBOX_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;
}
if (combo_box->priv->area)
{
g_object_unref (combo_box->priv->area);
combo_box->priv->area = NULL;
}
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);
combo_box->priv->popup_window = NULL;
}
gtk_combo_box_unset_model (combo_box);
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);
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_KEY_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_KEY_Return ||
event->keyval == GDK_KEY_ISO_Enter ||
event->keyval == GDK_KEY_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)
{
guint id;
id = gdk_threads_add_idle (popdown_idle, g_object_ref (data));
g_source_set_name_by_id (id, "[gtk+] popdown_idle");
}
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);
GtkWidget *child;
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
{
child = gtk_bin_get_child (GTK_BIN (combo_box));
g_signal_connect_object (child, "key-press-event",
G_CALLBACK (gtk_cell_editable_key_press),
cell_editable, 0);
gtk_widget_grab_focus (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);
g_source_set_name_by_id (combo_box->priv->popup_idle_id, "[gtk+] popup_idle");
}
}
/**
* gtk_combo_box_get_add_tearoffs:
* @combo_box: a #GtkComboBox
*
* Gets the current value of the :add-tearoffs property.
*
* Returns: the current value of the :add-tearoffs property.
*
* Deprecated: 3.10
*/
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
*
* Deprecated: 3.10
*/
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);
if (GTK_IS_TREE_MENU (combo_box->priv->popup_widget))
_gtk_tree_menu_set_tearoff (GTK_TREE_MENU (combo_box->priv->popup_widget),
combo_box->priv->add_tearoffs);
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
*
* Deprecated: 3.10
*/
const 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))
G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
gtk_menu_set_title (GTK_MENU (combo_box->priv->popup_widget),
combo_box->priv->tearoff_title);
G_GNUC_END_IGNORE_DEPRECATIONS;
}
/**
* 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
*
* Deprecated: 3.10
*/
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_set_popup_fixed_width:
* @combo_box: a #GtkComboBox
* @fixed: whether to use a fixed popup width
*
* Specifies whether the popup’s width should be a fixed width
* matching the allocated width of the combo box.
*
* Since: 3.0
**/
void
gtk_combo_box_set_popup_fixed_width (GtkComboBox *combo_box,
gboolean fixed)
{
g_return_if_fail (GTK_IS_COMBO_BOX (combo_box));
if (combo_box->priv->popup_fixed_width != fixed)
{
combo_box->priv->popup_fixed_width = fixed;
g_object_notify (G_OBJECT (combo_box), "popup-fixed-width");
}
}
/**
* gtk_combo_box_get_popup_fixed_width:
* @combo_box: a #GtkComboBox
*
* Gets whether the popup uses a fixed width matching
* the allocated width of the combo box.
*
* Returns: %TRUE if the popup uses a fixed width
*
* Since: 3.0
**/
gboolean
gtk_combo_box_get_popup_fixed_width (GtkComboBox *combo_box)
{
g_return_val_if_fail (GTK_IS_COMBO_BOX (combo_box), FALSE);
return combo_box->priv->popup_fixed_width;
}
/**
* 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: (skip)
* @combo_box: a #GtkComboBox
*
* Returns the current row separator function.
*
* Returns: 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;
/* Provoke the underlying treeview/menu to rebuild themselves with the new separator func */
if (combo_box->priv->tree_view)
{
gtk_tree_view_set_model (GTK_TREE_VIEW (combo_box->priv->tree_view), NULL);
gtk_tree_view_set_model (GTK_TREE_VIEW (combo_box->priv->tree_view), combo_box->priv->model);
}
if (GTK_IS_TREE_MENU (combo_box->priv->popup_widget))
{
_gtk_tree_menu_set_model (GTK_TREE_MENU (combo_box->priv->popup_widget), NULL);
_gtk_tree_menu_set_model (GTK_TREE_MENU (combo_box->priv->popup_widget), combo_box->priv->model);
}
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.
*
* Returns: %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.
*
* Returns: 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 != NULL)
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.
*
* Returns: 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().
*
* Returns: %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 (!_gtk_cell_layout_buildable_custom_tag_end (buildable, builder, child, tagname, data))
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);
}
static void
gtk_combo_box_get_preferred_width (GtkWidget *widget,
gint *minimum_size,
gint *natural_size)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (widget);
GtkComboBoxPrivate *priv = combo_box->priv;
gint font_size, arrow_size;
PangoContext *context;
PangoFontMetrics *metrics;
GtkWidget *child;
gint minimum_width = 0, natural_width = 0;
gint child_min, child_nat;
GtkBorder padding;
gfloat arrow_scaling;
gint dummy;
/* https://bugzilla.gnome.org/show_bug.cgi?id=729496 */
if (natural_size == NULL)
natural_size = &dummy;
child = gtk_bin_get_child (GTK_BIN (widget));
/* common */
gtk_widget_get_preferred_width (child, &child_min, &child_nat);
gtk_widget_style_get (GTK_WIDGET (widget),
"arrow-size", &arrow_size,
"arrow-scaling", &arrow_scaling,
NULL);
get_widget_padding_and_border (widget, &padding);
context = gtk_widget_get_pango_context (GTK_WIDGET (widget));
metrics = pango_context_get_metrics (context,
pango_context_get_font_description (context),
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) * arrow_scaling;
gtk_widget_set_size_request (priv->arrow, arrow_size, arrow_size);
if (!priv->tree_view)
{
/* menu mode */
if (priv->cell_view)
{
gint box_width, xpad;
GtkBorder button_padding;
get_widget_padding_and_border (priv->button, &button_padding);
gtk_widget_get_preferred_width (priv->box, &box_width, NULL);
xpad = button_padding.left + button_padding.right + padding.left + padding.right;
minimum_width = child_min + box_width + xpad;
natural_width = child_nat + box_width + xpad;
}
else
{
gint but_width, but_nat_width;
gtk_widget_get_preferred_width (priv->button,
&but_width, &but_nat_width);
minimum_width = child_min + but_width;
natural_width = child_nat + but_nat_width;
}
}
else
{
/* list mode */
gint button_width, button_nat_width;
/* sample + frame */
minimum_width = child_min;
natural_width = child_nat;
if (priv->cell_view_frame)
{
if (priv->has_frame)
{
gint border_width, xpad;
GtkBorder frame_padding;
border_width = gtk_container_get_border_width (GTK_CONTAINER (priv->cell_view_frame));
get_widget_padding_and_border (priv->cell_view_frame, &frame_padding);
xpad = (2 * border_width) + frame_padding.left + frame_padding.right;
minimum_width += xpad;
natural_width += xpad;
}
}
/* the button */
gtk_widget_get_preferred_width (priv->button,
&button_width, &button_nat_width);
minimum_width += button_width;
natural_width += button_nat_width;
}
minimum_width += padding.left + padding.right;
natural_width += padding.left + padding.right;
*minimum_size = minimum_width;
*natural_size = natural_width;
}
static void
gtk_combo_box_get_preferred_height (GtkWidget *widget,
gint *minimum_size,
gint *natural_size)
{
gint min_width, nat_width;
/* Combo box is height-for-width only
* (so we always just reserve enough height for the minimum width) */
GTK_WIDGET_GET_CLASS (widget)->get_preferred_width (widget, &min_width, &nat_width);
GTK_WIDGET_GET_CLASS (widget)->get_preferred_height_for_width (widget, min_width, minimum_size, natural_size);
}
static void
gtk_combo_box_get_preferred_width_for_height (GtkWidget *widget,
gint avail_size,
gint *minimum_size,
gint *natural_size)
{
/* Combo box is height-for-width only
* (so we assume we always reserved enough height for the minimum width) */
GTK_WIDGET_GET_CLASS (widget)->get_preferred_width (widget, minimum_size, natural_size);
}
static void
gtk_combo_box_get_preferred_height_for_width (GtkWidget *widget,
gint avail_size,
gint *minimum_size,
gint *natural_size)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (widget);
GtkComboBoxPrivate *priv = combo_box->priv;
gint min_height = 0, nat_height = 0;
gint size;
GtkWidget *child;
GtkBorder padding;
child = gtk_bin_get_child (GTK_BIN (widget));
get_widget_padding_and_border (widget, &padding);
size = avail_size;
if (!priv->tree_view)
{
/* menu mode */
if (priv->cell_view)
{
/* calculate x/y padding and separator/arrow size */
gint box_width, box_height;
gint xpad, ypad;
GtkBorder button_padding;
get_widget_padding_and_border (priv->button, &button_padding);
gtk_widget_get_preferred_width (priv->box, &box_width, NULL);
gtk_widget_get_preferred_height_for_width (priv->box,
box_width, &box_height, NULL);
xpad = button_padding.left + button_padding.right;
ypad = button_padding.top + button_padding.bottom;
size -= box_width + xpad;
/* Get height-for-width of the child widget, usually a GtkCellArea calculating
* and fitting the whole treemodel */
gtk_widget_get_preferred_height_for_width (child, size, &min_height, &nat_height);
min_height = MAX (min_height, box_height);
nat_height = MAX (nat_height, box_height);
min_height += ypad;
nat_height += ypad;
}
else
{
/* there is a custom child widget inside (no priv->cell_view) */
gint but_width, but_height;
gtk_widget_get_preferred_width (priv->button, &but_width, NULL);
gtk_widget_get_preferred_height_for_width (priv->button,
but_width, &but_height, NULL);
size -= but_width;
/* Get height-for-width of the child widget, usually a GtkCellArea calculating
* and fitting the whole treemodel */
gtk_widget_get_preferred_height_for_width (child, size, &min_height, &nat_height);
min_height = MAX (min_height, but_height);
nat_height = MAX (nat_height, but_height);
}
}
else
{
/* list mode */
gint but_width, but_height;
gint xpad = 0, ypad = 0;
gtk_widget_get_preferred_width (priv->button, &but_width, NULL);
gtk_widget_get_preferred_height_for_width (priv->button,
but_width, &but_height, NULL);
if (priv->cell_view_frame && priv->has_frame)
{
GtkBorder frame_padding;
gint border_width;
border_width = gtk_container_get_border_width (GTK_CONTAINER (priv->cell_view_frame));
get_widget_padding_and_border (GTK_WIDGET (priv->cell_view_frame), &frame_padding);
xpad = (2 * border_width) + padding.left + frame_padding.right;
ypad = (2 * border_width) + padding.top + frame_padding.bottom;
}
size -= but_width;
size -= xpad;
/* Get height-for-width of the child widget, usually a GtkCellArea calculating
* and fitting the whole treemodel */
gtk_widget_get_preferred_height_for_width (child, size, &min_height, &nat_height);
min_height = MAX (min_height, but_height);
nat_height = MAX (nat_height, but_height);
min_height += ypad;
nat_height += ypad;
}
min_height += padding.top + padding.bottom;
nat_height += padding.top + padding.bottom;
*minimum_size = min_height;
*natural_size = nat_height;
}
/**
* gtk_combo_box_set_id_column:
* @combo_box: A #GtkComboBox
* @id_column: A column in @model to get string IDs for values from
*
* Sets the model column which @combo_box should use to get string IDs
* for values from. The column @id_column in the model of @combo_box
* must be of type %G_TYPE_STRING.
*
* Since: 3.0
*/
void
gtk_combo_box_set_id_column (GtkComboBox *combo_box,
gint id_column)
{
GtkComboBoxPrivate *priv = combo_box->priv;
GtkTreeModel *model;
g_return_if_fail (GTK_IS_COMBO_BOX (combo_box));
if (id_column != priv->id_column)
{
model = gtk_combo_box_get_model (combo_box);
g_return_if_fail (id_column >= 0);
g_return_if_fail (model == NULL ||
id_column < gtk_tree_model_get_n_columns (model));
priv->id_column = id_column;
g_object_notify (G_OBJECT (combo_box), "id-column");
g_object_notify (G_OBJECT (combo_box), "active-id");
}
}
/**
* gtk_combo_box_get_id_column:
* @combo_box: A #GtkComboBox
*
* Returns the column which @combo_box is using to get string IDs
* for values from.
*
* Returns: A column in the data source model of @combo_box.
*
* Since: 3.0
*/
gint
gtk_combo_box_get_id_column (GtkComboBox *combo_box)
{
g_return_val_if_fail (GTK_IS_COMBO_BOX (combo_box), 0);
return combo_box->priv->id_column;
}
/**
* gtk_combo_box_get_active_id:
* @combo_box: a #GtkComboBox
*
* Returns the ID of the active row of @combo_box. This value is taken
* from the active row and the column specified by the #GtkComboBox:id-column
* property of @combo_box (see gtk_combo_box_set_id_column()).
*
* The returned value is an interned string which means that you can
* compare the pointer by value to other interned strings and that you
* must not free it.
*
* If the #GtkComboBox:id-column property of @combo_box is not set, or if
* no row is active, or if the active row has a %NULL ID value, then %NULL
* is returned.
*
* Returns: the ID of the active row, or %NULL
*
* Since: 3.0
**/
const gchar *
gtk_combo_box_get_active_id (GtkComboBox *combo_box)
{
GtkTreeModel *model;
GtkTreeIter iter;
gint column;
g_return_val_if_fail (GTK_IS_COMBO_BOX (combo_box), NULL);
column = combo_box->priv->id_column;
if (column < 0)
return NULL;
model = gtk_combo_box_get_model (combo_box);
g_return_val_if_fail (gtk_tree_model_get_column_type (model, column) ==
G_TYPE_STRING, NULL);
if (gtk_combo_box_get_active_iter (combo_box, &iter))
{
const gchar *interned;
gchar *id;
gtk_tree_model_get (model, &iter, column, &id, -1);
interned = g_intern_string (id);
g_free (id);
return interned;
}
return NULL;
}
/**
* gtk_combo_box_set_active_id:
* @combo_box: a #GtkComboBox
* @active_id: (allow-none): the ID of the row to select, or %NULL
*
* Changes the active row of @combo_box to the one that has an ID equal to
* @active_id, or unsets the active row if @active_id is %NULL. Rows having
* a %NULL ID string cannot be made active by this function.
*
* If the #GtkComboBox:id-column property of @combo_box is unset or if no
* row has the given ID then the function does nothing and returns %FALSE.
*
* Returns: %TRUE if a row with a matching ID was found. If a %NULL
* @active_id was given to unset the active row, the function
* always returns %TRUE.
*
* Since: 3.0
**/
gboolean
gtk_combo_box_set_active_id (GtkComboBox *combo_box,
const gchar *active_id)
{
GtkTreeModel *model;
GtkTreeIter iter;
gboolean match = FALSE;
gint column;
g_return_val_if_fail (GTK_IS_COMBO_BOX (combo_box), FALSE);
if (active_id == NULL)
{
gtk_combo_box_set_active (combo_box, -1);
return TRUE; /* active row was successfully unset */
}
column = combo_box->priv->id_column;
if (column < 0)
return FALSE;
model = gtk_combo_box_get_model (combo_box);
g_return_val_if_fail (gtk_tree_model_get_column_type (model, column) ==
G_TYPE_STRING, FALSE);
if (gtk_tree_model_get_iter_first (model, &iter))
do {
gchar *id;
gtk_tree_model_get (model, &iter, column, &id, -1);
if (id != NULL)
match = strcmp (id, active_id) == 0;
g_free (id);
if (match)
{
gtk_combo_box_set_active_iter (combo_box, &iter);
break;
}
} while (gtk_tree_model_iter_next (model, &iter));
return match;
}
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