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gtk2/gtk/gtkcombobox.c
Tristan Van Berkom ffffa7361c Implemented GtkExtendedLayout on GtkComboBox. 
With this commit it is possible to use ellipsizing text
in the combobox's cell renderers and have them desire to
expand to natural size when placed in a GtkBox.
2010-04-08 18:54:47 -04:00

6011 lines
174 KiB
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/* gtkcombobox.c
* Copyright (C) 2002, 2003 Kristian Rietveld <kris@gtk.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include "gtkcombobox.h"
#include "gtkarrow.h"
#include "gtkbindings.h"
#include "gtkcelllayout.h"
#include "gtkcellrenderertext.h"
#include "gtkcellview.h"
#include "gtkeventbox.h"
#include "gtkframe.h"
#include "gtkhbox.h"
#include "gtkliststore.h"
#include "gtkmain.h"
#include "gtkmenu.h"
#include "gtkscrolledwindow.h"
#include "gtkseparatormenuitem.h"
#include "gtktearoffmenuitem.h"
#include "gtktogglebutton.h"
#include "gtktreeselection.h"
#include "gtkvseparator.h"
#include "gtkwindow.h"
#include "gtkextendedlayout.h"
#include "gtkprivate.h"
#include <gdk/gdkkeysyms.h>
#include <gobject/gvaluecollector.h>
#include <string.h>
#include <stdarg.h>
#include "gtkmarshalers.h"
#include "gtkintl.h"
#include "gtktreeprivate.h"
#include "gtkalias.h"
/* WELCOME, to THE house of evil code */
typedef struct _ComboCellInfo ComboCellInfo;
struct _ComboCellInfo
{
GtkCellRenderer *cell;
GSList *attributes;
GtkCellLayoutDataFunc func;
gpointer func_data;
GDestroyNotify destroy;
guint expand : 1;
guint pack : 1;
};
#define GTK_COMBO_BOX_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_COMBO_BOX, GtkComboBoxPrivate))
struct _GtkComboBoxPrivate
{
GtkTreeModel *model;
gint col_column;
gint row_column;
gint wrap_width;
GtkShadowType shadow_type;
gint active; /* Only temporary */
GtkTreeRowReference *active_row;
GtkWidget *tree_view;
GtkTreeViewColumn *column;
GtkWidget *cell_view;
GtkWidget *cell_view_frame;
GtkWidget *button;
GtkWidget *box;
GtkWidget *arrow;
GtkWidget *separator;
GtkWidget *popup_widget;
GtkWidget *popup_window;
GtkWidget *scrolled_window;
guint inserted_id;
guint deleted_id;
guint reordered_id;
guint changed_id;
guint popup_idle_id;
guint activate_button;
guint32 activate_time;
guint scroll_timer;
guint resize_idle_id;
GtkRequisition minimum_size;
GtkRequisition natural_size;
GSList *cells;
guint popup_in_progress : 1;
guint popup_shown : 1;
guint add_tearoffs : 1;
guint has_frame : 1;
guint is_cell_renderer : 1;
guint editing_canceled : 1;
guint auto_scroll : 1;
guint focus_on_click : 1;
guint button_sensitivity : 2;
GtkTreeViewRowSeparatorFunc row_separator_func;
gpointer row_separator_data;
GDestroyNotify row_separator_destroy;
gchar *tearoff_title;
};
/* While debugging this evil code, I have learned that
* there are actually 4 modes to this widget, which can
* be characterized as follows
*
* 1) menu mode, no child added
*
* tree_view -> NULL
* cell_view -> GtkCellView, regular child
* cell_view_frame -> NULL
* button -> GtkToggleButton set_parent to combo
* arrow -> GtkArrow set_parent to button
* separator -> GtkVSepator set_parent to button
* popup_widget -> GtkMenu
* popup_window -> NULL
* scrolled_window -> NULL
*
* 2) menu mode, child added
*
* tree_view -> NULL
* cell_view -> NULL
* cell_view_frame -> NULL
* button -> GtkToggleButton set_parent to combo
* arrow -> GtkArrow, child of button
* separator -> NULL
* popup_widget -> GtkMenu
* popup_window -> NULL
* scrolled_window -> NULL
*
* 3) list mode, no child added
*
* tree_view -> GtkTreeView, child of scrolled_window
* cell_view -> GtkCellView, regular child
* cell_view_frame -> GtkFrame, set parent to combo
* button -> GtkToggleButton, set_parent to combo
* arrow -> GtkArrow, child of button
* separator -> NULL
* popup_widget -> tree_view
* popup_window -> GtkWindow
* scrolled_window -> GtkScrolledWindow, child of popup_window
*
* 4) list mode, child added
*
* tree_view -> GtkTreeView, child of scrolled_window
* cell_view -> NULL
* cell_view_frame -> NULL
* button -> GtkToggleButton, set_parent to combo
* arrow -> GtkArrow, child of button
* separator -> NULL
* popup_widget -> tree_view
* popup_window -> GtkWindow
* scrolled_window -> GtkScrolledWindow, child of popup_window
*
*/
enum {
CHANGED,
MOVE_ACTIVE,
POPUP,
POPDOWN,
LAST_SIGNAL
};
enum {
PROP_0,
PROP_MODEL,
PROP_WRAP_WIDTH,
PROP_ROW_SPAN_COLUMN,
PROP_COLUMN_SPAN_COLUMN,
PROP_ACTIVE,
PROP_ADD_TEAROFFS,
PROP_TEAROFF_TITLE,
PROP_HAS_FRAME,
PROP_FOCUS_ON_CLICK,
PROP_POPUP_SHOWN,
PROP_BUTTON_SENSITIVITY,
PROP_EDITING_CANCELED
};
static guint combo_box_signals[LAST_SIGNAL] = {0,};
#define BONUS_PADDING 4
#define SCROLL_TIME 100
/* common */
static void gtk_combo_box_cell_layout_init (GtkCellLayoutIface *iface);
static void gtk_combo_box_cell_editable_init (GtkCellEditableIface *iface);
static void gtk_combo_box_dispose (GObject *object);
static void gtk_combo_box_finalize (GObject *object);
static void gtk_combo_box_destroy (GtkObject *object);
static void gtk_combo_box_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *spec);
static void gtk_combo_box_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *spec);
static void gtk_combo_box_state_changed (GtkWidget *widget,
GtkStateType previous);
static void gtk_combo_box_grab_focus (GtkWidget *widget);
static void gtk_combo_box_style_set (GtkWidget *widget,
GtkStyle *previous);
static void gtk_combo_box_button_toggled (GtkWidget *widget,
gpointer data);
static void gtk_combo_box_button_state_changed (GtkWidget *widget,
GtkStateType previous,
gpointer data);
static void gtk_combo_box_add (GtkContainer *container,
GtkWidget *widget);
static void gtk_combo_box_remove (GtkContainer *container,
GtkWidget *widget);
static ComboCellInfo *gtk_combo_box_get_cell_info (GtkComboBox *combo_box,
GtkCellRenderer *cell);
static void gtk_combo_box_menu_show (GtkWidget *menu,
gpointer user_data);
static void gtk_combo_box_menu_hide (GtkWidget *menu,
gpointer user_data);
static void gtk_combo_box_set_popup_widget (GtkComboBox *combo_box,
GtkWidget *popup);
static void gtk_combo_box_menu_position_below (GtkMenu *menu,
gint *x,
gint *y,
gint *push_in,
gpointer user_data);
static void gtk_combo_box_menu_position_over (GtkMenu *menu,
gint *x,
gint *y,
gint *push_in,
gpointer user_data);
static void gtk_combo_box_menu_position (GtkMenu *menu,
gint *x,
gint *y,
gint *push_in,
gpointer user_data);
static gint gtk_combo_box_calc_requested_width (GtkComboBox *combo_box,
GtkTreePath *path);
static void gtk_combo_box_remeasure (GtkComboBox *combo_box);
static void gtk_combo_box_unset_model (GtkComboBox *combo_box);
static void gtk_combo_box_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static void gtk_combo_box_forall (GtkContainer *container,
gboolean include_internals,
GtkCallback callback,
gpointer callback_data);
static gboolean gtk_combo_box_expose_event (GtkWidget *widget,
GdkEventExpose *event);
static gboolean gtk_combo_box_scroll_event (GtkWidget *widget,
GdkEventScroll *event);
static void gtk_combo_box_set_active_internal (GtkComboBox *combo_box,
GtkTreePath *path);
static void gtk_combo_box_check_appearance (GtkComboBox *combo_box);
static gchar * gtk_combo_box_real_get_active_text (GtkComboBox *combo_box);
static void gtk_combo_box_real_move_active (GtkComboBox *combo_box,
GtkScrollType scroll);
static void gtk_combo_box_real_popup (GtkComboBox *combo_box);
static gboolean gtk_combo_box_real_popdown (GtkComboBox *combo_box);
/* listening to the model */
static void gtk_combo_box_model_row_inserted (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer user_data);
static void gtk_combo_box_model_row_deleted (GtkTreeModel *model,
GtkTreePath *path,
gpointer user_data);
static void gtk_combo_box_model_rows_reordered (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gint *new_order,
gpointer user_data);
static void gtk_combo_box_model_row_changed (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data);
static void gtk_combo_box_model_row_expanded (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data);
/* list */
static void gtk_combo_box_list_position (GtkComboBox *combo_box,
gint *x,
gint *y,
gint *width,
gint *height);
static void gtk_combo_box_list_setup (GtkComboBox *combo_box);
static void gtk_combo_box_list_destroy (GtkComboBox *combo_box);
static gboolean gtk_combo_box_list_button_released (GtkWidget *widget,
GdkEventButton *event,
gpointer data);
static gboolean gtk_combo_box_list_key_press (GtkWidget *widget,
GdkEventKey *event,
gpointer data);
static gboolean gtk_combo_box_list_enter_notify (GtkWidget *widget,
GdkEventCrossing *event,
gpointer data);
static void gtk_combo_box_list_auto_scroll (GtkComboBox *combo,
gint x,
gint y);
static gboolean gtk_combo_box_list_scroll_timeout (GtkComboBox *combo);
static gboolean gtk_combo_box_list_button_pressed (GtkWidget *widget,
GdkEventButton *event,
gpointer data);
static gboolean gtk_combo_box_list_select_func (GtkTreeSelection *selection,
GtkTreeModel *model,
GtkTreePath *path,
gboolean path_currently_selected,
gpointer data);
static void gtk_combo_box_list_row_changed (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data);
static void gtk_combo_box_list_popup_resize (GtkComboBox *combo_box);
/* menu */
static void gtk_combo_box_menu_setup (GtkComboBox *combo_box,
gboolean add_children);
static void gtk_combo_box_menu_fill (GtkComboBox *combo_box);
static void gtk_combo_box_menu_fill_level (GtkComboBox *combo_box,
GtkWidget *menu,
GtkTreeIter *iter);
static void gtk_combo_box_update_title (GtkComboBox *combo_box);
static void gtk_combo_box_menu_destroy (GtkComboBox *combo_box);
static void gtk_combo_box_relayout_item (GtkComboBox *combo_box,
GtkWidget *item,
GtkTreeIter *iter,
GtkWidget *last);
static void gtk_combo_box_relayout (GtkComboBox *combo_box);
static gboolean gtk_combo_box_menu_button_press (GtkWidget *widget,
GdkEventButton *event,
gpointer user_data);
static void gtk_combo_box_menu_item_activate (GtkWidget *item,
gpointer user_data);
static void gtk_combo_box_update_sensitivity (GtkComboBox *combo_box);
static void gtk_combo_box_menu_row_inserted (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer user_data);
static void gtk_combo_box_menu_row_deleted (GtkTreeModel *model,
GtkTreePath *path,
gpointer user_data);
static void gtk_combo_box_menu_rows_reordered (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gint *new_order,
gpointer user_data);
static void gtk_combo_box_menu_row_changed (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data);
static gboolean gtk_combo_box_menu_key_press (GtkWidget *widget,
GdkEventKey *event,
gpointer data);
static void gtk_combo_box_menu_popup (GtkComboBox *combo_box,
guint button,
guint32 activate_time);
static GtkWidget *gtk_cell_view_menu_item_new (GtkComboBox *combo_box,
GtkTreeModel *model,
GtkTreeIter *iter);
/* cell layout */
static void gtk_combo_box_cell_layout_pack_start (GtkCellLayout *layout,
GtkCellRenderer *cell,
gboolean expand);
static void gtk_combo_box_cell_layout_pack_end (GtkCellLayout *layout,
GtkCellRenderer *cell,
gboolean expand);
static GList *gtk_combo_box_cell_layout_get_cells (GtkCellLayout *layout);
static void gtk_combo_box_cell_layout_clear (GtkCellLayout *layout);
static void gtk_combo_box_cell_layout_add_attribute (GtkCellLayout *layout,
GtkCellRenderer *cell,
const gchar *attribute,
gint column);
static void gtk_combo_box_cell_layout_set_cell_data_func (GtkCellLayout *layout,
GtkCellRenderer *cell,
GtkCellLayoutDataFunc func,
gpointer func_data,
GDestroyNotify destroy);
static void gtk_combo_box_cell_layout_clear_attributes (GtkCellLayout *layout,
GtkCellRenderer *cell);
static void gtk_combo_box_cell_layout_reorder (GtkCellLayout *layout,
GtkCellRenderer *cell,
gint position);
static gboolean gtk_combo_box_mnemonic_activate (GtkWidget *widget,
gboolean group_cycling);
static void gtk_combo_box_sync_cells (GtkComboBox *combo_box,
GtkCellLayout *cell_layout);
static void combo_cell_data_func (GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
GtkTreeModel *tree_model,
GtkTreeIter *iter,
gpointer data);
static void gtk_combo_box_child_show (GtkWidget *widget,
GtkComboBox *combo_box);
static void gtk_combo_box_child_hide (GtkWidget *widget,
GtkComboBox *combo_box);
/* 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);
/* GtkCellEditable method implementations */
static void gtk_combo_box_start_editing (GtkCellEditable *cell_editable,
GdkEvent *event);
static void gtk_combo_box_extended_layout_init (GtkExtendedLayoutIface *iface);
static void gtk_combo_box_get_desired_size (GtkExtendedLayout *layout,
GtkRequisition *minimum_size,
GtkRequisition *natural_size);
G_DEFINE_TYPE_WITH_CODE (GtkComboBox, gtk_combo_box, GTK_TYPE_BIN,
G_IMPLEMENT_INTERFACE (GTK_TYPE_CELL_LAYOUT,
gtk_combo_box_cell_layout_init)
G_IMPLEMENT_INTERFACE (GTK_TYPE_CELL_EDITABLE,
gtk_combo_box_cell_editable_init)
G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
gtk_combo_box_buildable_init)
G_IMPLEMENT_INTERFACE (GTK_TYPE_EXTENDED_LAYOUT,
gtk_combo_box_extended_layout_init))
/* common */
static void
gtk_combo_box_class_init (GtkComboBoxClass *klass)
{
GObjectClass *object_class;
GtkObjectClass *gtk_object_class;
GtkContainerClass *container_class;
GtkWidgetClass *widget_class;
GtkBindingSet *binding_set;
klass->get_active_text = gtk_combo_box_real_get_active_text;
container_class = (GtkContainerClass *)klass;
container_class->forall = gtk_combo_box_forall;
container_class->add = gtk_combo_box_add;
container_class->remove = gtk_combo_box_remove;
widget_class = (GtkWidgetClass *)klass;
widget_class->size_allocate = gtk_combo_box_size_allocate;
widget_class->expose_event = gtk_combo_box_expose_event;
widget_class->scroll_event = gtk_combo_box_scroll_event;
widget_class->mnemonic_activate = gtk_combo_box_mnemonic_activate;
widget_class->grab_focus = gtk_combo_box_grab_focus;
widget_class->style_set = gtk_combo_box_style_set;
widget_class->state_changed = gtk_combo_box_state_changed;
gtk_object_class = (GtkObjectClass *)klass;
gtk_object_class->destroy = gtk_combo_box_destroy;
object_class = (GObjectClass *)klass;
object_class->dispose = gtk_combo_box_dispose;
object_class->finalize = gtk_combo_box_finalize;
object_class->set_property = gtk_combo_box_set_property;
object_class->get_property = gtk_combo_box_get_property;
/* signals */
/**
* GtkComboBox::changed:
* @widget: the object which received the signal
*
* The changed signal is emitted when the active
* item is changed. The can be due to the user selecting
* a different item from the list, or due to a
* call to gtk_combo_box_set_active_iter().
* It will also be emitted while typing into a GtkComboBoxEntry,
* as well as when selecting an item from the GtkComboBoxEntry's list.
*
* Since: 2.4
*/
combo_box_signals[CHANGED] =
g_signal_new (I_("changed"),
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkComboBoxClass, changed),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
/**
* GtkComboBox::move-active:
* @widget: the object that received the signal
* @scroll_type: a #GtkScrollType
*
* The ::move-active signal is a
* <link linkend="keybinding-signals">keybinding signal</link>
* which gets emitted to move the active selection.
*
* Since: 2.12
*/
combo_box_signals[MOVE_ACTIVE] =
g_signal_new_class_handler (I_("move-active"),
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_CALLBACK (gtk_combo_box_real_move_active),
NULL, NULL,
g_cclosure_marshal_VOID__ENUM,
G_TYPE_NONE, 1,
GTK_TYPE_SCROLL_TYPE);
/**
* GtkComboBox::popup:
* @widget: the object that received the signal
*
* The ::popup signal is a
* <link linkend="keybinding-signals">keybinding signal</link>
* which gets emitted to popup the combo box list.
*
* The default binding for this signal is Alt+Down.
*
* Since: 2.12
*/
combo_box_signals[POPUP] =
g_signal_new_class_handler (I_("popup"),
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_CALLBACK (gtk_combo_box_real_popup),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
/**
* GtkComboBox::popdown:
* @button: the object which received the signal
*
* The ::popdown signal is a
* <link linkend="keybinding-signals">keybinding signal</link>
* which gets emitted to popdown the combo box list.
*
* The default bindings for this signal are Alt+Up and Escape.
*
* Since: 2.12
*/
combo_box_signals[POPDOWN] =
g_signal_new_class_handler (I_("popdown"),
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_CALLBACK (gtk_combo_box_real_popdown),
NULL, NULL,
_gtk_marshal_BOOLEAN__VOID,
G_TYPE_BOOLEAN, 0);
/* key bindings */
binding_set = gtk_binding_set_by_class (widget_class);
gtk_binding_entry_add_signal (binding_set, GDK_Down, GDK_MOD1_MASK,
"popup", 0);
gtk_binding_entry_add_signal (binding_set, GDK_KP_Down, GDK_MOD1_MASK,
"popup", 0);
gtk_binding_entry_add_signal (binding_set, GDK_Up, GDK_MOD1_MASK,
"popdown", 0);
gtk_binding_entry_add_signal (binding_set, GDK_KP_Up, GDK_MOD1_MASK,
"popdown", 0);
gtk_binding_entry_add_signal (binding_set, GDK_Escape, 0,
"popdown", 0);
gtk_binding_entry_add_signal (binding_set, GDK_Up, 0,
"move-active", 1,
GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_STEP_UP);
gtk_binding_entry_add_signal (binding_set, GDK_KP_Up, 0,
"move-active", 1,
GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_STEP_UP);
gtk_binding_entry_add_signal (binding_set, GDK_Page_Up, 0,
"move-active", 1,
GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_PAGE_UP);
gtk_binding_entry_add_signal (binding_set, GDK_KP_Page_Up, 0,
"move-active", 1,
GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_PAGE_UP);
gtk_binding_entry_add_signal (binding_set, GDK_Home, 0,
"move-active", 1,
GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_START);
gtk_binding_entry_add_signal (binding_set, GDK_KP_Home, 0,
"move-active", 1,
GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_START);
gtk_binding_entry_add_signal (binding_set, GDK_Down, 0,
"move-active", 1,
GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_STEP_DOWN);
gtk_binding_entry_add_signal (binding_set, GDK_KP_Down, 0,
"move-active", 1,
GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_STEP_DOWN);
gtk_binding_entry_add_signal (binding_set, GDK_Page_Down, 0,
"move-active", 1,
GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_PAGE_DOWN);
gtk_binding_entry_add_signal (binding_set, GDK_KP_Page_Down, 0,
"move-active", 1,
GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_PAGE_DOWN);
gtk_binding_entry_add_signal (binding_set, GDK_End, 0,
"move-active", 1,
GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_END);
gtk_binding_entry_add_signal (binding_set, GDK_KP_End, 0,
"move-active", 1,
GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_END);
/* properties */
g_object_class_override_property (object_class,
PROP_EDITING_CANCELED,
"editing-canceled");
/**
* GtkComboBox:model:
*
* The model from which the combo box takes the values shown
* in the list.
*
* Since: 2.4
*/
g_object_class_install_property (object_class,
PROP_MODEL,
g_param_spec_object ("model",
P_("ComboBox model"),
P_("The model for the combo box"),
GTK_TYPE_TREE_MODEL,
GTK_PARAM_READWRITE));
/**
* GtkComboBox:wrap-width:
*
* If wrap-width is set to a positive value, the list will be
* displayed in multiple columns, the number of columns is
* determined by wrap-width.
*
* Since: 2.4
*/
g_object_class_install_property (object_class,
PROP_WRAP_WIDTH,
g_param_spec_int ("wrap-width",
P_("Wrap width"),
P_("Wrap width for laying out the items in a grid"),
0,
G_MAXINT,
0,
GTK_PARAM_READWRITE));
/**
* GtkComboBox:row-span-column:
*
* If this is set to a non-negative value, it must be the index of a column
* of type %G_TYPE_INT in the model.
*
* The values of that column are used to determine how many rows a value in
* the list will span. Therefore, the values in the model column pointed to
* by this property must be greater than zero and not larger than wrap-width.
*
* Since: 2.4
*/
g_object_class_install_property (object_class,
PROP_ROW_SPAN_COLUMN,
g_param_spec_int ("row-span-column",
P_("Row span column"),
P_("TreeModel column containing the row span values"),
-1,
G_MAXINT,
-1,
GTK_PARAM_READWRITE));
/**
* GtkComboBox:column-span-column:
*
* If this is set to a non-negative value, it must be the index of a column
* of type %G_TYPE_INT in the model.
*
* The values of that column are used to determine how many columns a value
* in the list will span.
*
* Since: 2.4
*/
g_object_class_install_property (object_class,
PROP_COLUMN_SPAN_COLUMN,
g_param_spec_int ("column-span-column",
P_("Column span column"),
P_("TreeModel column containing the column span values"),
-1,
G_MAXINT,
-1,
GTK_PARAM_READWRITE));
/**
* GtkComboBox:active:
*
* The item which is currently active. If the model is a non-flat treemodel,
* and the active item is not an immediate child of the root of the tree,
* this property has the value
* <literal>gtk_tree_path_get_indices (path)[0]</literal>,
* where <literal>path</literal> is the #GtkTreePath of the active item.
*
* Since: 2.4
*/
g_object_class_install_property (object_class,
PROP_ACTIVE,
g_param_spec_int ("active",
P_("Active item"),
P_("The item which is currently active"),
-1,
G_MAXINT,
-1,
GTK_PARAM_READWRITE));
/**
* GtkComboBox:add-tearoffs:
*
* The add-tearoffs property controls whether generated menus
* have tearoff menu items.
*
* Note that this only affects menu style combo boxes.
*
* Since: 2.6
*/
g_object_class_install_property (object_class,
PROP_ADD_TEAROFFS,
g_param_spec_boolean ("add-tearoffs",
P_("Add tearoffs to menus"),
P_("Whether dropdowns should have a tearoff menu item"),
FALSE,
GTK_PARAM_READWRITE));
/**
* GtkComboBox:has-frame:
*
* The has-frame property controls whether a frame
* is drawn around the entry.
*
* Since: 2.6
*/
g_object_class_install_property (object_class,
PROP_HAS_FRAME,
g_param_spec_boolean ("has-frame",
P_("Has Frame"),
P_("Whether the combo box draws a frame around the child"),
TRUE,
GTK_PARAM_READWRITE));
g_object_class_install_property (object_class,
PROP_FOCUS_ON_CLICK,
g_param_spec_boolean ("focus-on-click",
P_("Focus on click"),
P_("Whether the combo box grabs focus when it is clicked with the mouse"),
TRUE,
GTK_PARAM_READWRITE));
/**
* GtkComboBox:tearoff-title:
*
* A title that may be displayed by the window manager
* when the popup is torn-off.
*
* Since: 2.10
*/
g_object_class_install_property (object_class,
PROP_TEAROFF_TITLE,
g_param_spec_string ("tearoff-title",
P_("Tearoff Title"),
P_("A title that may be displayed by the window manager when the popup is torn-off"),
NULL,
GTK_PARAM_READWRITE));
/**
* GtkComboBox:popup-shown:
*
* Whether the combo boxes dropdown is popped up.
* Note that this property is mainly useful, because
* it allows you to connect to notify::popup-shown.
*
* Since: 2.10
*/
g_object_class_install_property (object_class,
PROP_POPUP_SHOWN,
g_param_spec_boolean ("popup-shown",
P_("Popup shown"),
P_("Whether the combo's dropdown is shown"),
FALSE,
GTK_PARAM_READABLE));
/**
* GtkComboBox:button-sensitivity:
*
* Whether the dropdown button is sensitive when
* the model is empty.
*
* Since: 2.14
*/
g_object_class_install_property (object_class,
PROP_BUTTON_SENSITIVITY,
g_param_spec_enum ("button-sensitivity",
P_("Button Sensitivity"),
P_("Whether the dropdown button is sensitive when the model is empty"),
GTK_TYPE_SENSITIVITY_TYPE,
GTK_SENSITIVITY_AUTO,
GTK_PARAM_READWRITE));
gtk_widget_class_install_style_property (widget_class,
g_param_spec_boolean ("appears-as-list",
P_("Appears as list"),
P_("Whether dropdowns should look like lists rather than menus"),
FALSE,
GTK_PARAM_READABLE));
/**
* GtkComboBox:arrow-size:
*
* Sets the minimum size of the arrow in the combo box. Note
* that the arrow size is coupled to the font size, so in case
* a larger font is used, the arrow will be larger than set
* by arrow size.
*
* Since: 2.12
*/
gtk_widget_class_install_style_property (widget_class,
g_param_spec_int ("arrow-size",
P_("Arrow Size"),
P_("The minimum size of the arrow in the combo box"),
0,
G_MAXINT,
15,
GTK_PARAM_READABLE));
/**
* GtkComboBox:shadow-type:
*
* Which kind of shadow to draw around the combo box.
*
* Since: 2.12
*/
gtk_widget_class_install_style_property (widget_class,
g_param_spec_enum ("shadow-type",
P_("Shadow type"),
P_("Which kind of shadow to draw around the combo box"),
GTK_TYPE_SHADOW_TYPE,
GTK_SHADOW_NONE,
GTK_PARAM_READABLE));
g_type_class_add_private (object_class, sizeof (GtkComboBoxPrivate));
}
static void
gtk_combo_box_buildable_init (GtkBuildableIface *iface)
{
parent_buildable_iface = g_type_interface_peek_parent (iface);
iface->add_child = _gtk_cell_layout_buildable_add_child;
iface->custom_tag_start = gtk_combo_box_buildable_custom_tag_start;
iface->custom_tag_end = gtk_combo_box_buildable_custom_tag_end;
}
static void
gtk_combo_box_cell_layout_init (GtkCellLayoutIface *iface)
{
iface->pack_start = gtk_combo_box_cell_layout_pack_start;
iface->pack_end = gtk_combo_box_cell_layout_pack_end;
iface->get_cells = gtk_combo_box_cell_layout_get_cells;
iface->clear = gtk_combo_box_cell_layout_clear;
iface->add_attribute = gtk_combo_box_cell_layout_add_attribute;
iface->set_cell_data_func = gtk_combo_box_cell_layout_set_cell_data_func;
iface->clear_attributes = gtk_combo_box_cell_layout_clear_attributes;
iface->reorder = gtk_combo_box_cell_layout_reorder;
}
static void
gtk_combo_box_cell_editable_init (GtkCellEditableIface *iface)
{
iface->start_editing = gtk_combo_box_start_editing;
}
static void
gtk_combo_box_init (GtkComboBox *combo_box)
{
GtkComboBoxPrivate *priv = GTK_COMBO_BOX_GET_PRIVATE (combo_box);
priv->cell_view = gtk_cell_view_new ();
gtk_widget_set_parent (priv->cell_view, GTK_WIDGET (combo_box));
GTK_BIN (combo_box)->child = priv->cell_view;
gtk_widget_show (priv->cell_view);
memset (&priv->minimum_size, 0x0, sizeof (GtkRequisition));
memset (&priv->natural_size, 0x0, sizeof (GtkRequisition));
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;
combo_box->priv = priv;
gtk_combo_box_check_appearance (combo_box);
}
static void
gtk_combo_box_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (object);
switch (prop_id)
{
case PROP_MODEL:
gtk_combo_box_set_model (combo_box, g_value_get_object (value));
break;
case PROP_WRAP_WIDTH:
gtk_combo_box_set_wrap_width (combo_box, g_value_get_int (value));
break;
case PROP_ROW_SPAN_COLUMN:
gtk_combo_box_set_row_span_column (combo_box, g_value_get_int (value));
break;
case PROP_COLUMN_SPAN_COLUMN:
gtk_combo_box_set_column_span_column (combo_box, g_value_get_int (value));
break;
case PROP_ACTIVE:
gtk_combo_box_set_active (combo_box, g_value_get_int (value));
break;
case PROP_ADD_TEAROFFS:
gtk_combo_box_set_add_tearoffs (combo_box, g_value_get_boolean (value));
break;
case PROP_HAS_FRAME:
combo_box->priv->has_frame = g_value_get_boolean (value);
break;
case PROP_FOCUS_ON_CLICK:
gtk_combo_box_set_focus_on_click (combo_box,
g_value_get_boolean (value));
break;
case PROP_TEAROFF_TITLE:
gtk_combo_box_set_title (combo_box, g_value_get_string (value));
break;
case PROP_POPUP_SHOWN:
if (g_value_get_boolean (value))
gtk_combo_box_popup (combo_box);
else
gtk_combo_box_popdown (combo_box);
break;
case PROP_BUTTON_SENSITIVITY:
gtk_combo_box_set_button_sensitivity (combo_box,
g_value_get_enum (value));
break;
case PROP_EDITING_CANCELED:
combo_box->priv->editing_canceled = g_value_get_boolean (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_combo_box_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (object);
GtkComboBoxPrivate *priv = GTK_COMBO_BOX_GET_PRIVATE (combo_box);
switch (prop_id)
{
case PROP_MODEL:
g_value_set_object (value, combo_box->priv->model);
break;
case PROP_WRAP_WIDTH:
g_value_set_int (value, combo_box->priv->wrap_width);
break;
case PROP_ROW_SPAN_COLUMN:
g_value_set_int (value, combo_box->priv->row_column);
break;
case PROP_COLUMN_SPAN_COLUMN:
g_value_set_int (value, combo_box->priv->col_column);
break;
case PROP_ACTIVE:
g_value_set_int (value, gtk_combo_box_get_active (combo_box));
break;
case PROP_ADD_TEAROFFS:
g_value_set_boolean (value, gtk_combo_box_get_add_tearoffs (combo_box));
break;
case PROP_HAS_FRAME:
g_value_set_boolean (value, combo_box->priv->has_frame);
break;
case PROP_FOCUS_ON_CLICK:
g_value_set_boolean (value, combo_box->priv->focus_on_click);
break;
case PROP_TEAROFF_TITLE:
g_value_set_string (value, gtk_combo_box_get_title (combo_box));
break;
case PROP_POPUP_SHOWN:
g_value_set_boolean (value, combo_box->priv->popup_shown);
break;
case PROP_BUTTON_SENSITIVITY:
g_value_set_enum (value, combo_box->priv->button_sensitivity);
break;
case PROP_EDITING_CANCELED:
g_value_set_boolean (value, priv->editing_canceled);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_combo_box_state_changed (GtkWidget *widget,
GtkStateType previous)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (widget);
GtkComboBoxPrivate *priv = combo_box->priv;
if (gtk_widget_get_realized (widget))
{
if (priv->tree_view && priv->cell_view)
gtk_cell_view_set_background_color (GTK_CELL_VIEW (priv->cell_view),
&widget->style->base[gtk_widget_get_state (widget)]);
}
gtk_widget_queue_draw (widget);
}
static void
gtk_combo_box_button_state_changed (GtkWidget *widget,
GtkStateType previous,
gpointer data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (data);
GtkComboBoxPrivate *priv = combo_box->priv;
if (gtk_widget_get_realized (widget))
{
if (!priv->tree_view && priv->cell_view)
{
if ((gtk_widget_get_state (widget) == GTK_STATE_INSENSITIVE) !=
(gtk_widget_get_state (priv->cell_view) == GTK_STATE_INSENSITIVE))
gtk_widget_set_sensitive (priv->cell_view, gtk_widget_get_sensitive (widget));
gtk_widget_set_state (priv->cell_view,
gtk_widget_get_state (widget));
}
}
gtk_widget_queue_draw (widget);
}
static void
gtk_combo_box_check_appearance (GtkComboBox *combo_box)
{
GtkComboBoxPrivate *priv = combo_box->priv;
gboolean appears_as_list;
/* if wrap_width > 0, then we are in grid-mode and forced to use
* unix style
*/
if (priv->wrap_width)
appears_as_list = FALSE;
else
gtk_widget_style_get (GTK_WIDGET (combo_box),
"appears-as-list", &appears_as_list,
NULL);
if (appears_as_list)
{
/* Destroy all the menu mode widgets, if they exist. */
if (GTK_IS_MENU (priv->popup_widget))
gtk_combo_box_menu_destroy (combo_box);
/* Create the list mode widgets, if they don't already exist. */
if (!GTK_IS_TREE_VIEW (priv->tree_view))
gtk_combo_box_list_setup (combo_box);
}
else
{
/* Destroy all the list mode widgets, if they exist. */
if (GTK_IS_TREE_VIEW (priv->tree_view))
gtk_combo_box_list_destroy (combo_box);
/* Create the menu mode widgets, if they don't already exist. */
if (!GTK_IS_MENU (priv->popup_widget))
gtk_combo_box_menu_setup (combo_box, TRUE);
}
gtk_widget_style_get (GTK_WIDGET (combo_box),
"shadow-type", &priv->shadow_type,
NULL);
}
static void
gtk_combo_box_style_set (GtkWidget *widget,
GtkStyle *previous)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (widget);
GtkComboBoxPrivate *priv = combo_box->priv;
gtk_combo_box_check_appearance (combo_box);
if (priv->tree_view && priv->cell_view)
gtk_cell_view_set_background_color (GTK_CELL_VIEW (priv->cell_view),
&widget->style->base[gtk_widget_get_state (widget)]);
if (GTK_IS_ENTRY (GTK_BIN (combo_box)->child))
g_object_set (GTK_BIN (combo_box)->child, "shadow-type",
GTK_SHADOW_NONE == priv->shadow_type ?
GTK_SHADOW_IN : GTK_SHADOW_NONE, NULL);
}
static void
gtk_combo_box_button_toggled (GtkWidget *widget,
gpointer data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (data);
if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (widget)))
{
if (!combo_box->priv->popup_in_progress)
gtk_combo_box_popup (combo_box);
}
else
gtk_combo_box_popdown (combo_box);
}
static void
gtk_combo_box_add (GtkContainer *container,
GtkWidget *widget)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (container);
GtkComboBoxPrivate *priv = combo_box->priv;
if (priv->cell_view && priv->cell_view->parent)
{
gtk_widget_unparent (priv->cell_view);
GTK_BIN (container)->child = NULL;
gtk_widget_queue_resize (GTK_WIDGET (container));
}
gtk_widget_set_parent (widget, GTK_WIDGET (container));
GTK_BIN (container)->child = widget;
if (priv->cell_view &&
widget != priv->cell_view)
{
/* since the cell_view was unparented, it's gone now */
priv->cell_view = NULL;
if (!priv->tree_view && priv->separator)
{
gtk_container_remove (GTK_CONTAINER (priv->separator->parent),
priv->separator);
priv->separator = NULL;
gtk_widget_queue_resize (GTK_WIDGET (container));
}
else if (priv->cell_view_frame)
{
gtk_widget_unparent (priv->cell_view_frame);
priv->cell_view_frame = NULL;
priv->box = NULL;
}
}
}
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 (widget == priv->cell_view)
priv->cell_view = NULL;
gtk_widget_unparent (widget);
GTK_BIN (container)->child = NULL;
if (GTK_OBJECT_FLAGS (combo_box) & GTK_IN_DESTRUCTION)
return;
gtk_widget_queue_resize (GTK_WIDGET (container));
if (!priv->tree_view)
appears_as_list = FALSE;
else
appears_as_list = TRUE;
if (appears_as_list)
gtk_combo_box_list_destroy (combo_box);
else if (GTK_IS_MENU (priv->popup_widget))
{
gtk_combo_box_menu_destroy (combo_box);
gtk_menu_detach (GTK_MENU (priv->popup_widget));
priv->popup_widget = NULL;
}
if (!priv->cell_view)
{
priv->cell_view = gtk_cell_view_new ();
gtk_widget_set_parent (priv->cell_view, GTK_WIDGET (container));
GTK_BIN (container)->child = priv->cell_view;
gtk_widget_show (priv->cell_view);
gtk_cell_view_set_model (GTK_CELL_VIEW (priv->cell_view),
priv->model);
gtk_combo_box_sync_cells (combo_box, GTK_CELL_LAYOUT (priv->cell_view));
}
if (appears_as_list)
gtk_combo_box_list_setup (combo_box);
else
gtk_combo_box_menu_setup (combo_box, TRUE);
if (gtk_tree_row_reference_valid (priv->active_row))
{
path = gtk_tree_row_reference_get_path (priv->active_row);
gtk_combo_box_set_active_internal (combo_box, path);
gtk_tree_path_free (path);
}
else
gtk_combo_box_set_active_internal (combo_box, NULL);
}
static ComboCellInfo *
gtk_combo_box_get_cell_info (GtkComboBox *combo_box,
GtkCellRenderer *cell)
{
GSList *i;
for (i = combo_box->priv->cells; i; i = i->next)
{
ComboCellInfo *info = (ComboCellInfo *)i->data;
if (info && info->cell == cell)
return info;
}
return NULL;
}
static void
gtk_combo_box_menu_show (GtkWidget *menu,
gpointer user_data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (user_data);
GtkComboBoxPrivate *priv = combo_box->priv;
gtk_combo_box_child_show (menu, user_data);
priv->popup_in_progress = TRUE;
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (priv->button),
TRUE);
priv->popup_in_progress = FALSE;
}
static void
gtk_combo_box_menu_hide (GtkWidget *menu,
gpointer user_data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (user_data);
gtk_combo_box_child_hide (menu,user_data);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (combo_box->priv->button),
FALSE);
}
static void
gtk_combo_box_detacher (GtkWidget *widget,
GtkMenu *menu)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (widget);
GtkComboBoxPrivate *priv = combo_box->priv;
g_return_if_fail (priv->popup_widget == (GtkWidget *) menu);
g_signal_handlers_disconnect_by_func (menu->toplevel,
gtk_combo_box_menu_show,
combo_box);
g_signal_handlers_disconnect_by_func (menu->toplevel,
gtk_combo_box_menu_hide,
combo_box);
priv->popup_widget = NULL;
}
static void
gtk_combo_box_set_popup_widget (GtkComboBox *combo_box,
GtkWidget *popup)
{
GtkComboBoxPrivate *priv = combo_box->priv;
if (GTK_IS_MENU (priv->popup_widget))
{
gtk_menu_detach (GTK_MENU (priv->popup_widget));
priv->popup_widget = NULL;
}
else if (priv->popup_widget)
{
gtk_container_remove (GTK_CONTAINER (priv->scrolled_window),
priv->popup_widget);
g_object_unref (priv->popup_widget);
priv->popup_widget = NULL;
}
if (GTK_IS_MENU (popup))
{
if (priv->popup_window)
{
gtk_widget_destroy (priv->popup_window);
priv->popup_window = NULL;
}
priv->popup_widget = popup;
/*
* Note that we connect to show/hide on the toplevel, not the
* menu itself, since the menu is not shown/hidden when it is
* popped up while torn-off.
*/
g_signal_connect (GTK_MENU (popup)->toplevel, "show",
G_CALLBACK (gtk_combo_box_menu_show), combo_box);
g_signal_connect (GTK_MENU (popup)->toplevel, "hide",
G_CALLBACK (gtk_combo_box_menu_hide), combo_box);
gtk_menu_attach_to_widget (GTK_MENU (popup),
GTK_WIDGET (combo_box),
gtk_combo_box_detacher);
}
else
{
if (!priv->popup_window)
{
GtkWidget *toplevel;
priv->popup_window = gtk_window_new (GTK_WINDOW_POPUP);
gtk_widget_set_name (priv->popup_window, "gtk-combobox-popup-window");
gtk_window_set_type_hint (GTK_WINDOW (priv->popup_window),
GDK_WINDOW_TYPE_HINT_COMBO);
g_signal_connect (GTK_WINDOW (priv->popup_window),"show",
G_CALLBACK (gtk_combo_box_child_show),
combo_box);
g_signal_connect (GTK_WINDOW (priv->popup_window),"hide",
G_CALLBACK (gtk_combo_box_child_hide),
combo_box);
toplevel = gtk_widget_get_toplevel (GTK_WIDGET (combo_box));
if (GTK_IS_WINDOW (toplevel))
{
gtk_window_group_add_window (gtk_window_get_group (GTK_WINDOW (toplevel)),
GTK_WINDOW (priv->popup_window));
gtk_window_set_transient_for (GTK_WINDOW (priv->popup_window),
GTK_WINDOW (toplevel));
}
gtk_window_set_resizable (GTK_WINDOW (priv->popup_window), FALSE);
gtk_window_set_screen (GTK_WINDOW (priv->popup_window),
gtk_widget_get_screen (GTK_WIDGET (combo_box)));
priv->scrolled_window = gtk_scrolled_window_new (NULL, NULL);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->scrolled_window),
GTK_POLICY_NEVER,
GTK_POLICY_NEVER);
gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (priv->scrolled_window),
GTK_SHADOW_IN);
gtk_widget_show (priv->scrolled_window);
gtk_container_add (GTK_CONTAINER (priv->popup_window),
priv->scrolled_window);
}
gtk_container_add (GTK_CONTAINER (priv->scrolled_window),
popup);
gtk_widget_show (popup);
g_object_ref (popup);
priv->popup_widget = popup;
}
}
static void
gtk_combo_box_menu_position_below (GtkMenu *menu,
gint *x,
gint *y,
gint *push_in,
gpointer user_data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (user_data);
gint sx, sy;
GtkWidget *child;
GtkRequisition req;
GdkScreen *screen;
gint monitor_num;
GdkRectangle monitor;
/* FIXME: is using the size request here broken? */
child = GTK_BIN (combo_box)->child;
sx = sy = 0;
if (!gtk_widget_get_has_window (child))
{
sx += child->allocation.x;
sy += child->allocation.y;
}
gdk_window_get_root_coords (child->window, sx, sy, &sx, &sy);
if (GTK_SHADOW_NONE != combo_box->priv->shadow_type)
sx -= GTK_WIDGET (combo_box)->style->xthickness;
gtk_widget_size_request (GTK_WIDGET (menu), &req);
if (gtk_widget_get_direction (GTK_WIDGET (combo_box)) == GTK_TEXT_DIR_LTR)
*x = sx;
else
*x = sx + child->allocation.width - req.width;
*y = sy;
screen = gtk_widget_get_screen (GTK_WIDGET (combo_box));
monitor_num = gdk_screen_get_monitor_at_window (screen,
GTK_WIDGET (combo_box)->window);
gdk_screen_get_monitor_geometry (screen, monitor_num, &monitor);
if (*x < monitor.x)
*x = monitor.x;
else if (*x + req.width > monitor.x + monitor.width)
*x = monitor.x + monitor.width - req.width;
if (monitor.y + monitor.height - *y - child->allocation.height >= req.height)
*y += child->allocation.height;
else if (*y - monitor.y >= req.height)
*y -= req.height;
else if (monitor.y + monitor.height - *y - child->allocation.height > *y - monitor.y)
*y += child->allocation.height;
else
*y -= req.height;
*push_in = FALSE;
}
static void
gtk_combo_box_menu_position_over (GtkMenu *menu,
gint *x,
gint *y,
gboolean *push_in,
gpointer user_data)
{
GtkComboBox *combo_box;
GtkWidget *active;
GtkWidget *child;
GtkWidget *widget;
GtkRequisition requisition;
GList *children;
gint screen_width;
gint menu_xpos;
gint menu_ypos;
gint menu_width;
combo_box = GTK_COMBO_BOX (user_data);
widget = GTK_WIDGET (combo_box);
gtk_widget_get_child_requisition (GTK_WIDGET (menu), &requisition);
menu_width = requisition.width;
active = gtk_menu_get_active (GTK_MENU (combo_box->priv->popup_widget));
menu_xpos = widget->allocation.x;
menu_ypos = widget->allocation.y + widget->allocation.height / 2 - 2;
if (active != NULL)
{
gtk_widget_get_child_requisition (active, &requisition);
menu_ypos -= requisition.height / 2;
}
children = GTK_MENU_SHELL (combo_box->priv->popup_widget)->children;
while (children)
{
child = children->data;
if (active == child)
break;
if (gtk_widget_get_visible (child))
{
gtk_widget_get_child_requisition (child, &requisition);
menu_ypos -= requisition.height;
}
children = children->next;
}
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
menu_xpos = menu_xpos + widget->allocation.width - menu_width;
gdk_window_get_root_coords (widget->window, menu_xpos, menu_ypos,
&menu_xpos, &menu_ypos);
/* Clamp the position on screen */
screen_width = gdk_screen_get_width (gtk_widget_get_screen (widget));
if (menu_xpos < 0)
menu_xpos = 0;
else if ((menu_xpos + menu_width) > screen_width)
menu_xpos -= ((menu_xpos + menu_width) - screen_width);
*x = menu_xpos;
*y = menu_ypos;
*push_in = TRUE;
}
static void
gtk_combo_box_menu_position (GtkMenu *menu,
gint *x,
gint *y,
gint *push_in,
gpointer user_data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (user_data);
GtkComboBoxPrivate *priv = combo_box->priv;
GtkWidget *menu_item;
if (priv->wrap_width > 0 || priv->cell_view == NULL)
gtk_combo_box_menu_position_below (menu, x, y, push_in, user_data);
else
{
/* FIXME handle nested menus better */
menu_item = gtk_menu_get_active (GTK_MENU (priv->popup_widget));
if (menu_item)
gtk_menu_shell_select_item (GTK_MENU_SHELL (priv->popup_widget),
menu_item);
gtk_combo_box_menu_position_over (menu, x, y, push_in, user_data);
}
if (!gtk_widget_get_visible (GTK_MENU (priv->popup_widget)->toplevel))
gtk_window_set_type_hint (GTK_WINDOW (GTK_MENU (priv->popup_widget)->toplevel),
GDK_WINDOW_TYPE_HINT_COMBO);
}
static void
gtk_combo_box_list_position (GtkComboBox *combo_box,
gint *x,
gint *y,
gint *width,
gint *height)
{
GtkComboBoxPrivate *priv = combo_box->priv;
GdkScreen *screen;
gint monitor_num;
GdkRectangle monitor;
GtkRequisition popup_req;
GtkPolicyType hpolicy, vpolicy;
/* under windows, the drop down list is as wide as the combo box itself.
see bug #340204 */
GtkWidget *sample = GTK_WIDGET (combo_box);
*x = *y = 0;
if (!gtk_widget_get_has_window (sample))
{
*x += sample->allocation.x;
*y += sample->allocation.y;
}
gdk_window_get_root_coords (sample->window, *x, *y, x, y);
*width = sample->allocation.width;
hpolicy = vpolicy = GTK_POLICY_NEVER;
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->scrolled_window),
hpolicy, vpolicy);
gtk_widget_size_request (priv->scrolled_window, &popup_req);
if (popup_req.width > *width)
{
hpolicy = GTK_POLICY_ALWAYS;
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->scrolled_window),
hpolicy, vpolicy);
gtk_widget_size_request (priv->scrolled_window, &popup_req);
}
*height = popup_req.height;
screen = gtk_widget_get_screen (GTK_WIDGET (combo_box));
monitor_num = gdk_screen_get_monitor_at_window (screen,
GTK_WIDGET (combo_box)->window);
gdk_screen_get_monitor_geometry (screen, monitor_num, &monitor);
if (*x < monitor.x)
*x = monitor.x;
else if (*x + *width > monitor.x + monitor.width)
*x = monitor.x + monitor.width - *width;
if (*y + sample->allocation.height + *height <= monitor.y + monitor.height)
*y += sample->allocation.height;
else if (*y - *height >= monitor.y)
*y -= *height;
else if (monitor.y + monitor.height - (*y + sample->allocation.height) > *y - monitor.y)
{
*y += sample->allocation.height;
*height = monitor.y + monitor.height - *y;
}
else
{
*height = *y - monitor.y;
*y = monitor.y;
}
if (popup_req.height > *height)
{
vpolicy = GTK_POLICY_ALWAYS;
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->scrolled_window),
hpolicy, vpolicy);
}
}
static gboolean
cell_view_is_sensitive (GtkCellView *cell_view)
{
GList *cells, *list;
gboolean sensitive;
cells = gtk_cell_layout_get_cells (GTK_CELL_LAYOUT (cell_view));
sensitive = FALSE;
for (list = cells; list; list = list->next)
{
g_object_get (list->data, "sensitive", &sensitive, NULL);
if (sensitive)
break;
}
g_list_free (cells);
return sensitive;
}
static gboolean
tree_column_row_is_sensitive (GtkComboBox *combo_box,
GtkTreeIter *iter)
{
GtkComboBoxPrivate *priv = combo_box->priv;
GList *cells, *list;
gboolean sensitive;
if (!priv->column)
return TRUE;
if (priv->row_separator_func)
{
if (priv->row_separator_func (priv->model, iter,
priv->row_separator_data))
return FALSE;
}
gtk_tree_view_column_cell_set_cell_data (priv->column,
priv->model,
iter, FALSE, FALSE);
cells = gtk_cell_layout_get_cells (GTK_CELL_LAYOUT (priv->column));
sensitive = FALSE;
for (list = cells; list; list = list->next)
{
g_object_get (list->data, "sensitive", &sensitive, NULL);
if (sensitive)
break;
}
g_list_free (cells);
return sensitive;
}
static void
update_menu_sensitivity (GtkComboBox *combo_box,
GtkWidget *menu)
{
GtkComboBoxPrivate *priv = combo_box->priv;
GList *children, *child;
GtkWidget *item, *submenu, *separator;
GtkWidget *cell_view;
gboolean sensitive;
if (!priv->model)
return;
children = gtk_container_get_children (GTK_CONTAINER (menu));
for (child = children; child; child = child->next)
{
item = GTK_WIDGET (child->data);
cell_view = GTK_BIN (item)->child;
if (!GTK_IS_CELL_VIEW (cell_view))
continue;
submenu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (item));
if (submenu != NULL)
{
gtk_widget_set_sensitive (item, TRUE);
update_menu_sensitivity (combo_box, submenu);
}
else
{
sensitive = cell_view_is_sensitive (GTK_CELL_VIEW (cell_view));
if (menu != priv->popup_widget && child == children)
{
separator = GTK_WIDGET (child->next->data);
g_object_set (item, "visible", sensitive, NULL);
g_object_set (separator, "visible", sensitive, NULL);
}
else
gtk_widget_set_sensitive (item, sensitive);
}
}
g_list_free (children);
}
static void
gtk_combo_box_menu_popup (GtkComboBox *combo_box,
guint button,
guint32 activate_time)
{
GtkComboBoxPrivate *priv = combo_box->priv;
GtkTreePath *path;
gint active_item;
GtkRequisition requisition;
gint width;
update_menu_sensitivity (combo_box, priv->popup_widget);
active_item = -1;
if (gtk_tree_row_reference_valid (priv->active_row))
{
path = gtk_tree_row_reference_get_path (priv->active_row);
active_item = gtk_tree_path_get_indices (path)[0];
gtk_tree_path_free (path);
if (priv->add_tearoffs)
active_item++;
}
/* FIXME handle nested menus better */
gtk_menu_set_active (GTK_MENU (priv->popup_widget), active_item);
if (priv->wrap_width == 0)
{
width = GTK_WIDGET (combo_box)->allocation.width;
gtk_widget_set_size_request (priv->popup_widget, -1, -1);
gtk_widget_size_request (priv->popup_widget, &requisition);
gtk_widget_set_size_request (priv->popup_widget,
MAX (width, requisition.width), -1);
}
gtk_menu_popup (GTK_MENU (priv->popup_widget),
NULL, NULL,
gtk_combo_box_menu_position, combo_box,
button, activate_time);
}
static gboolean
popup_grab_on_window (GdkWindow *window,
guint32 activate_time,
gboolean grab_keyboard)
{
if ((gdk_pointer_grab (window, TRUE,
GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
GDK_POINTER_MOTION_MASK,
NULL, NULL, activate_time) == 0))
{
if (!grab_keyboard ||
gdk_keyboard_grab (window, TRUE,
activate_time) == 0)
return TRUE;
else
{
gdk_display_pointer_ungrab (gdk_drawable_get_display (window),
activate_time);
return FALSE;
}
}
return FALSE;
}
/**
* gtk_combo_box_popup:
* @combo_box: a #GtkComboBox
*
* Pops up the menu or dropdown list of @combo_box.
*
* This function is mostly intended for use by accessibility technologies;
* applications should have little use for it.
*
* Since: 2.4
*/
void
gtk_combo_box_popup (GtkComboBox *combo_box)
{
g_return_if_fail (GTK_IS_COMBO_BOX (combo_box));
g_signal_emit (combo_box, combo_box_signals[POPUP], 0);
}
static void
gtk_combo_box_real_popup (GtkComboBox *combo_box)
{
GtkComboBoxPrivate *priv = combo_box->priv;
gint x, y, width, height;
GtkTreePath *path = NULL, *ppath;
GtkWidget *toplevel;
if (!gtk_widget_get_realized (GTK_WIDGET (combo_box)))
return;
if (gtk_widget_get_mapped (priv->popup_widget))
return;
if (GTK_IS_MENU (priv->popup_widget))
{
gtk_combo_box_menu_popup (combo_box,
priv->activate_button,
priv->activate_time);
return;
}
toplevel = gtk_widget_get_toplevel (GTK_WIDGET (combo_box));
if (GTK_IS_WINDOW (toplevel))
gtk_window_group_add_window (gtk_window_get_group (GTK_WINDOW (toplevel)),
GTK_WINDOW (priv->popup_window));
gtk_widget_show_all (priv->scrolled_window);
gtk_combo_box_list_position (combo_box, &x, &y, &width, &height);
gtk_widget_set_size_request (priv->popup_window, width, height);
gtk_window_move (GTK_WINDOW (priv->popup_window), x, y);
if (gtk_tree_row_reference_valid (priv->active_row))
{
path = gtk_tree_row_reference_get_path (priv->active_row);
ppath = gtk_tree_path_copy (path);
if (gtk_tree_path_up (ppath))
gtk_tree_view_expand_to_path (GTK_TREE_VIEW (priv->tree_view),
ppath);
gtk_tree_path_free (ppath);
}
gtk_tree_view_set_hover_expand (GTK_TREE_VIEW (priv->tree_view),
TRUE);
/* popup */
gtk_widget_show (priv->popup_window);
if (path)
{
gtk_tree_view_set_cursor (GTK_TREE_VIEW (priv->tree_view),
path, NULL, FALSE);
gtk_tree_path_free (path);
}
gtk_widget_grab_focus (priv->popup_window);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (priv->button),
TRUE);
if (!gtk_widget_has_focus (priv->tree_view))
gtk_widget_grab_focus (priv->tree_view);
if (!popup_grab_on_window (priv->popup_window->window,
GDK_CURRENT_TIME, TRUE))
{
gtk_widget_hide (priv->popup_window);
return;
}
gtk_grab_add (priv->popup_window);
}
static gboolean
gtk_combo_box_real_popdown (GtkComboBox *combo_box)
{
if (combo_box->priv->popup_shown)
{
gtk_combo_box_popdown (combo_box);
return TRUE;
}
return FALSE;
}
/**
* gtk_combo_box_popdown:
* @combo_box: a #GtkComboBox
*
* Hides the menu or dropdown list of @combo_box.
*
* This function is mostly intended for use by accessibility technologies;
* applications should have little use for it.
*
* Since: 2.4
*/
void
gtk_combo_box_popdown (GtkComboBox *combo_box)
{
GtkComboBoxPrivate *priv = combo_box->priv;
g_return_if_fail (GTK_IS_COMBO_BOX (combo_box));
if (GTK_IS_MENU (priv->popup_widget))
{
gtk_menu_popdown (GTK_MENU (priv->popup_widget));
return;
}
if (!gtk_widget_get_realized (GTK_WIDGET (combo_box)))
return;
gtk_grab_remove (priv->popup_window);
gtk_widget_hide_all (priv->popup_window);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (priv->button),
FALSE);
}
static gint
gtk_combo_box_calc_requested_width (GtkComboBox *combo_box,
GtkTreePath *path)
{
GtkComboBoxPrivate *priv = combo_box->priv;
gint padding;
GtkRequisition req;
if (priv->cell_view)
gtk_widget_style_get (priv->cell_view,
"focus-line-width", &padding,
NULL);
else
padding = 0;
/* add some pixels for good measure */
padding += BONUS_PADDING;
if (priv->cell_view)
gtk_cell_view_get_size_of_row (GTK_CELL_VIEW (priv->cell_view),
path, &req);
else
req.width = 0;
return req.width + padding;
}
#define GTK_COMBO_BOX_SIZE_ALLOCATE_BUTTON \
gtk_widget_size_request (combo_box->priv->button, &req); \
\
if (is_rtl) \
child.x = allocation->x + shadow_width; \
else \
child.x = allocation->x + allocation->width - req.width - shadow_width; \
\
child.y = allocation->y + shadow_height; \
child.width = req.width; \
child.height = allocation->height - 2 * shadow_height; \
child.width = MAX (1, child.width); \
child.height = MAX (1, child.height); \
\
gtk_widget_size_allocate (combo_box->priv->button, &child);
static void
gtk_combo_box_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (widget);
GtkComboBoxPrivate *priv = combo_box->priv;
gint shadow_width, shadow_height;
gint focus_width, focus_pad;
GtkAllocation child;
GtkRequisition req;
gboolean is_rtl = gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL;
widget->allocation = *allocation;
gtk_widget_style_get (GTK_WIDGET (widget),
"focus-line-width", &focus_width,
"focus-padding", &focus_pad,
NULL);
if (GTK_SHADOW_NONE != priv->shadow_type)
{
shadow_width = widget->style->xthickness;
shadow_height = widget->style->ythickness;
}
else
{
shadow_width = 0;
shadow_height = 0;
}
if (!priv->tree_view)
{
if (priv->cell_view)
{
gint border_width, xthickness, ythickness;
gint width;
/* menu mode */
allocation->x += shadow_width;
allocation->y += shadow_height;
allocation->width -= 2 * shadow_width;
allocation->height -= 2 * shadow_height;
gtk_widget_size_allocate (priv->button, allocation);
/* set some things ready */
border_width = GTK_CONTAINER (priv->button)->border_width;
xthickness = priv->button->style->xthickness;
ythickness = priv->button->style->ythickness;
child.x = allocation->x;
child.y = allocation->y;
width = allocation->width;
child.height = allocation->height;
if (!priv->is_cell_renderer)
{
child.x += border_width + xthickness + focus_width + focus_pad;
child.y += border_width + ythickness + focus_width + focus_pad;
width -= 2 * (child.x - allocation->x);
child.height -= 2 * (child.y - allocation->y);
}
/* handle the children */
gtk_widget_size_request (priv->arrow, &req);
child.width = req.width;
if (!is_rtl)
child.x += width - req.width;
child.width = MAX (1, child.width);
child.height = MAX (1, child.height);
gtk_widget_size_allocate (priv->arrow, &child);
if (is_rtl)
child.x += req.width;
gtk_widget_size_request (priv->separator, &req);
child.width = req.width;
if (!is_rtl)
child.x -= req.width;
child.width = MAX (1, child.width);
child.height = MAX (1, child.height);
gtk_widget_size_allocate (priv->separator, &child);
if (is_rtl)
{
child.x += req.width;
child.width = allocation->x + allocation->width
- (border_width + xthickness + focus_width + focus_pad)
- child.x;
}
else
{
child.width = child.x;
child.x = allocation->x
+ border_width + xthickness + focus_width + focus_pad;
child.width -= child.x;
}
if (gtk_widget_get_visible (priv->popup_widget))
{
gint width;
GtkRequisition requisition;
/* Warning here, without the check in the position func */
gtk_menu_reposition (GTK_MENU (priv->popup_widget));
if (priv->wrap_width == 0)
{
width = GTK_WIDGET (combo_box)->allocation.width;
gtk_widget_set_size_request (priv->popup_widget, -1, -1);
gtk_widget_size_request (priv->popup_widget, &requisition);
gtk_widget_set_size_request (priv->popup_widget,
MAX (width, requisition.width), -1);
}
}
child.width = MAX (1, child.width);
child.height = MAX (1, child.height);
gtk_widget_size_allocate (GTK_BIN (widget)->child, &child);
}
else
{
GTK_COMBO_BOX_SIZE_ALLOCATE_BUTTON
if (is_rtl)
child.x = allocation->x + req.width + shadow_width;
else
child.x = allocation->x + shadow_width;
child.y = allocation->y + shadow_height;
child.width = allocation->width - req.width - 2 * shadow_width;
child.width = MAX (1, child.width);
child.height = MAX (1, child.height);
gtk_widget_size_allocate (GTK_BIN (widget)->child, &child);
}
}
else
{
/* list mode */
/* Combobox thickness + border-width */
int delta_x = shadow_width + GTK_CONTAINER (widget)->border_width;
int delta_y = shadow_height + GTK_CONTAINER (widget)->border_width;
/* button */
GTK_COMBO_BOX_SIZE_ALLOCATE_BUTTON
/* frame */
if (is_rtl)
child.x = allocation->x + req.width;
else
child.x = allocation->x;
child.y = allocation->y;
child.width = allocation->width - req.width;
child.height = allocation->height;
if (priv->cell_view_frame)
{
child.x += delta_x;
child.y += delta_y;
child.width = MAX (1, child.width - delta_x * 2);
child.height = MAX (1, child.height - delta_y * 2);
gtk_widget_size_allocate (priv->cell_view_frame, &child);
/* the sample */
if (priv->has_frame)
{
delta_x = GTK_CONTAINER (priv->cell_view_frame)->border_width +
GTK_WIDGET (priv->cell_view_frame)->style->xthickness;
delta_y = GTK_CONTAINER (priv->cell_view_frame)->border_width +
GTK_WIDGET (priv->cell_view_frame)->style->ythickness;
child.x += delta_x;
child.y += delta_y;
child.width -= delta_x * 2;
child.height -= delta_y * 2;
}
}
else
{
child.x += delta_x;
child.y += delta_y;
child.width -= delta_x * 2;
child.height -= delta_y * 2;
}
if (gtk_widget_get_visible (priv->popup_window))
{
gint x, y, width, height;
gtk_combo_box_list_position (combo_box, &x, &y, &width, &height);
gtk_window_move (GTK_WINDOW (priv->popup_window), x, y);
gtk_widget_set_size_request (priv->popup_window, width, height);
}
child.width = MAX (1, child.width);
child.height = MAX (1, child.height);
gtk_widget_size_allocate (GTK_BIN (combo_box)->child, &child);
}
}
#undef GTK_COMBO_BOX_ALLOCATE_BUTTON
static void
gtk_combo_box_unset_model (GtkComboBox *combo_box)
{
GtkComboBoxPrivate *priv = combo_box->priv;
if (priv->model)
{
g_signal_handler_disconnect (priv->model,
priv->inserted_id);
g_signal_handler_disconnect (priv->model,
priv->deleted_id);
g_signal_handler_disconnect (priv->model,
priv->reordered_id);
g_signal_handler_disconnect (priv->model,
priv->changed_id);
}
/* menu mode */
if (!priv->tree_view)
{
if (priv->popup_widget)
gtk_container_foreach (GTK_CONTAINER (priv->popup_widget),
(GtkCallback)gtk_widget_destroy, NULL);
}
if (priv->model)
{
g_object_unref (priv->model);
priv->model = NULL;
}
if (priv->active_row)
{
gtk_tree_row_reference_free (priv->active_row);
priv->active_row = NULL;
}
if (priv->cell_view)
gtk_cell_view_set_model (GTK_CELL_VIEW (priv->cell_view), NULL);
}
static void
gtk_combo_box_forall (GtkContainer *container,
gboolean include_internals,
GtkCallback callback,
gpointer callback_data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (container);
GtkComboBoxPrivate *priv = combo_box->priv;
if (include_internals)
{
if (priv->button)
(* callback) (priv->button, callback_data);
if (priv->cell_view_frame)
(* callback) (priv->cell_view_frame, callback_data);
}
if (GTK_BIN (container)->child)
(* callback) (GTK_BIN (container)->child, callback_data);
}
static void
gtk_combo_box_child_show (GtkWidget *widget,
GtkComboBox *combo_box)
{
GtkComboBoxPrivate *priv = combo_box->priv;
priv->popup_shown = TRUE;
g_object_notify (G_OBJECT (combo_box), "popup-shown");
}
static void
gtk_combo_box_child_hide (GtkWidget *widget,
GtkComboBox *combo_box)
{
GtkComboBoxPrivate *priv = combo_box->priv;
priv->popup_shown = FALSE;
g_object_notify (G_OBJECT (combo_box), "popup-shown");
}
static gboolean
gtk_combo_box_expose_event (GtkWidget *widget,
GdkEventExpose *event)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (widget);
GtkComboBoxPrivate *priv = combo_box->priv;
if (gtk_widget_is_drawable (widget) &&
GTK_SHADOW_NONE != priv->shadow_type)
{
gtk_paint_shadow (widget->style, widget->window,
GTK_STATE_NORMAL, priv->shadow_type,
NULL, widget, "combobox",
widget->allocation.x, widget->allocation.y,
widget->allocation.width, widget->allocation.height);
}
gtk_container_propagate_expose (GTK_CONTAINER (widget),
priv->button, event);
if (priv->tree_view && priv->cell_view_frame)
{
gtk_container_propagate_expose (GTK_CONTAINER (widget),
priv->cell_view_frame, event);
}
gtk_container_propagate_expose (GTK_CONTAINER (widget),
GTK_BIN (widget)->child, event);
return FALSE;
}
typedef struct {
GtkComboBox *combo;
GtkTreePath *path;
GtkTreeIter iter;
gboolean found;
gboolean set;
gboolean visible;
} SearchData;
static gboolean
path_visible (GtkTreeView *view,
GtkTreePath *path)
{
GtkRBTree *tree;
GtkRBNode *node;
/* Note that we rely on the fact that collapsed rows don't have nodes
*/
return _gtk_tree_view_find_node (view, path, &tree, &node);
}
static gboolean
tree_next_func (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data)
{
SearchData *search_data = (SearchData *)data;
if (search_data->found)
{
if (!tree_column_row_is_sensitive (search_data->combo, iter))
return FALSE;
if (search_data->visible &&
!path_visible (GTK_TREE_VIEW (search_data->combo->priv->tree_view), path))
return FALSE;
search_data->set = TRUE;
search_data->iter = *iter;
return TRUE;
}
if (gtk_tree_path_compare (path, search_data->path) == 0)
search_data->found = TRUE;
return FALSE;
}
static gboolean
tree_next (GtkComboBox *combo,
GtkTreeModel *model,
GtkTreeIter *iter,
GtkTreeIter *next,
gboolean visible)
{
SearchData search_data;
search_data.combo = combo;
search_data.path = gtk_tree_model_get_path (model, iter);
search_data.visible = visible;
search_data.found = FALSE;
search_data.set = FALSE;
gtk_tree_model_foreach (model, tree_next_func, &search_data);
*next = search_data.iter;
gtk_tree_path_free (search_data.path);
return search_data.set;
}
static gboolean
tree_prev_func (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data)
{
SearchData *search_data = (SearchData *)data;
if (gtk_tree_path_compare (path, search_data->path) == 0)
{
search_data->found = TRUE;
return TRUE;
}
if (!tree_column_row_is_sensitive (search_data->combo, iter))
return FALSE;
if (search_data->visible &&
!path_visible (GTK_TREE_VIEW (search_data->combo->priv->tree_view), path))
return FALSE;
search_data->set = TRUE;
search_data->iter = *iter;
return FALSE;
}
static gboolean
tree_prev (GtkComboBox *combo,
GtkTreeModel *model,
GtkTreeIter *iter,
GtkTreeIter *prev,
gboolean visible)
{
SearchData search_data;
search_data.combo = combo;
search_data.path = gtk_tree_model_get_path (model, iter);
search_data.visible = visible;
search_data.found = FALSE;
search_data.set = FALSE;
gtk_tree_model_foreach (model, tree_prev_func, &search_data);
*prev = search_data.iter;
gtk_tree_path_free (search_data.path);
return search_data.set;
}
static gboolean
tree_last_func (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data)
{
SearchData *search_data = (SearchData *)data;
if (!tree_column_row_is_sensitive (search_data->combo, iter))
return FALSE;
/* Note that we rely on the fact that collapsed rows don't have nodes
*/
if (search_data->visible &&
!path_visible (GTK_TREE_VIEW (search_data->combo->priv->tree_view), path))
return FALSE;
search_data->set = TRUE;
search_data->iter = *iter;
return FALSE;
}
static gboolean
tree_last (GtkComboBox *combo,
GtkTreeModel *model,
GtkTreeIter *last,
gboolean visible)
{
SearchData search_data;
search_data.combo = combo;
search_data.visible = visible;
search_data.set = FALSE;
gtk_tree_model_foreach (model, tree_last_func, &search_data);
*last = search_data.iter;
return search_data.set;
}
static gboolean
tree_first_func (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data)
{
SearchData *search_data = (SearchData *)data;
if (!tree_column_row_is_sensitive (search_data->combo, iter))
return FALSE;
if (search_data->visible &&
!path_visible (GTK_TREE_VIEW (search_data->combo->priv->tree_view), path))
return FALSE;
search_data->set = TRUE;
search_data->iter = *iter;
return TRUE;
}
static gboolean
tree_first (GtkComboBox *combo,
GtkTreeModel *model,
GtkTreeIter *first,
gboolean visible)
{
SearchData search_data;
search_data.combo = combo;
search_data.visible = visible;
search_data.set = FALSE;
gtk_tree_model_foreach (model, tree_first_func, &search_data);
*first = search_data.iter;
return search_data.set;
}
static gboolean
gtk_combo_box_scroll_event (GtkWidget *widget,
GdkEventScroll *event)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (widget);
gboolean found;
GtkTreeIter iter;
GtkTreeIter new_iter;
if (!gtk_combo_box_get_active_iter (combo_box, &iter))
return TRUE;
if (event->direction == GDK_SCROLL_UP)
found = tree_prev (combo_box, combo_box->priv->model,
&iter, &new_iter, FALSE);
else
found = tree_next (combo_box, combo_box->priv->model,
&iter, &new_iter, FALSE);
if (found)
gtk_combo_box_set_active_iter (combo_box, &new_iter);
return TRUE;
}
/*
* menu style
*/
static void
gtk_combo_box_sync_cells (GtkComboBox *combo_box,
GtkCellLayout *cell_layout)
{
GtkComboBoxPrivate *priv = combo_box->priv;
GSList *k;
for (k = priv->cells; k; k = k->next)
{
GSList *j;
ComboCellInfo *info = (ComboCellInfo *)k->data;
if (info->pack == GTK_PACK_START)
gtk_cell_layout_pack_start (cell_layout,
info->cell, info->expand);
else if (info->pack == GTK_PACK_END)
gtk_cell_layout_pack_end (cell_layout,
info->cell, info->expand);
gtk_cell_layout_set_cell_data_func (cell_layout,
info->cell,
combo_cell_data_func, info, NULL);
for (j = info->attributes; j; j = j->next->next)
{
gtk_cell_layout_add_attribute (cell_layout,
info->cell,
j->data,
GPOINTER_TO_INT (j->next->data));
}
}
}
static void
gtk_combo_box_menu_setup (GtkComboBox *combo_box,
gboolean add_children)
{
GtkComboBoxPrivate *priv = combo_box->priv;
GtkWidget *menu;
if (priv->cell_view)
{
priv->button = gtk_toggle_button_new ();
gtk_button_set_focus_on_click (GTK_BUTTON (priv->button),
priv->focus_on_click);
g_signal_connect (priv->button, "toggled",
G_CALLBACK (gtk_combo_box_button_toggled), combo_box);
gtk_widget_set_parent (priv->button,
GTK_BIN (combo_box)->child->parent);
priv->box = gtk_hbox_new (FALSE, 0);
gtk_container_add (GTK_CONTAINER (priv->button), priv->box);
priv->separator = gtk_vseparator_new ();
gtk_container_add (GTK_CONTAINER (priv->box), priv->separator);
priv->arrow = gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_NONE);
gtk_container_add (GTK_CONTAINER (priv->box), priv->arrow);
gtk_widget_show_all (priv->button);
}
else
{
priv->button = gtk_toggle_button_new ();
gtk_button_set_focus_on_click (GTK_BUTTON (priv->button),
priv->focus_on_click);
g_signal_connect (priv->button, "toggled",
G_CALLBACK (gtk_combo_box_button_toggled), combo_box);
gtk_widget_set_parent (priv->button,
GTK_BIN (combo_box)->child->parent);
priv->arrow = gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_NONE);
gtk_container_add (GTK_CONTAINER (priv->button), priv->arrow);
gtk_widget_show_all (priv->button);
}
g_signal_connect (priv->button, "button-press-event",
G_CALLBACK (gtk_combo_box_menu_button_press),
combo_box);
g_signal_connect (priv->button, "state-changed",
G_CALLBACK (gtk_combo_box_button_state_changed),
combo_box);
/* create our funky menu */
menu = gtk_menu_new ();
gtk_widget_set_name (menu, "gtk-combobox-popup-menu");
gtk_menu_set_reserve_toggle_size (GTK_MENU (menu), FALSE);
g_signal_connect (menu, "key-press-event",
G_CALLBACK (gtk_combo_box_menu_key_press), combo_box);
gtk_combo_box_set_popup_widget (combo_box, menu);
/* add items */
if (add_children)
gtk_combo_box_menu_fill (combo_box);
/* the column is needed in tree_column_row_is_sensitive() */
priv->column = gtk_tree_view_column_new ();
g_object_ref_sink (priv->column);
gtk_combo_box_sync_cells (combo_box, GTK_CELL_LAYOUT (priv->column));
gtk_combo_box_update_title (combo_box);
gtk_combo_box_update_sensitivity (combo_box);
}
static void
gtk_combo_box_menu_fill (GtkComboBox *combo_box)
{
GtkComboBoxPrivate *priv = combo_box->priv;
GtkWidget *menu;
if (!priv->model)
return;
menu = priv->popup_widget;
if (priv->add_tearoffs)
{
GtkWidget *tearoff = gtk_tearoff_menu_item_new ();
gtk_widget_show (tearoff);
if (priv->wrap_width)
gtk_menu_attach (GTK_MENU (menu), tearoff, 0, priv->wrap_width, 0, 1);
else
gtk_menu_shell_append (GTK_MENU_SHELL (menu), tearoff);
}
gtk_combo_box_menu_fill_level (combo_box, menu, NULL);
}
static GtkWidget *
gtk_cell_view_menu_item_new (GtkComboBox *combo_box,
GtkTreeModel *model,
GtkTreeIter *iter)
{
GtkWidget *cell_view;
GtkWidget *item;
GtkTreePath *path;
GtkRequisition req;
cell_view = gtk_cell_view_new ();
item = gtk_menu_item_new ();
gtk_container_add (GTK_CONTAINER (item), cell_view);
gtk_cell_view_set_model (GTK_CELL_VIEW (cell_view), model);
path = gtk_tree_model_get_path (model, iter);
gtk_cell_view_set_displayed_row (GTK_CELL_VIEW (cell_view), path);
gtk_tree_path_free (path);
gtk_combo_box_sync_cells (combo_box, GTK_CELL_LAYOUT (cell_view));
gtk_widget_size_request (cell_view, &req);
gtk_widget_show (cell_view);
return item;
}
static void
gtk_combo_box_menu_fill_level (GtkComboBox *combo_box,
GtkWidget *menu,
GtkTreeIter *parent)
{
GtkComboBoxPrivate *priv = combo_box->priv;
GtkTreeModel *model = priv->model;
GtkWidget *item, *submenu, *subitem, *separator;
GtkTreeIter iter;
gboolean is_separator;
gint i, n_children;
GtkWidget *last;
GtkTreePath *path;
n_children = gtk_tree_model_iter_n_children (model, parent);
last = NULL;
for (i = 0; i < n_children; i++)
{
gtk_tree_model_iter_nth_child (model, &iter, parent, i);
if (priv->row_separator_func)
is_separator = priv->row_separator_func (priv->model, &iter,
priv->row_separator_data);
else
is_separator = FALSE;
if (is_separator)
{
item = gtk_separator_menu_item_new ();
path = gtk_tree_model_get_path (model, &iter);
g_object_set_data_full (G_OBJECT (item),
I_("gtk-combo-box-item-path"),
gtk_tree_row_reference_new (model, path),
(GDestroyNotify)gtk_tree_row_reference_free);
gtk_tree_path_free (path);
}
else
{
item = gtk_cell_view_menu_item_new (combo_box, model, &iter);
if (gtk_tree_model_iter_has_child (model, &iter))
{
submenu = gtk_menu_new ();
gtk_menu_set_reserve_toggle_size (GTK_MENU (submenu), FALSE);
gtk_widget_show (submenu);
gtk_menu_item_set_submenu (GTK_MENU_ITEM (item), submenu);
/* Ugly - since menus can only activate leafs, we have to
* duplicate the item inside the submenu.
*/
subitem = gtk_cell_view_menu_item_new (combo_box, model, &iter);
separator = gtk_separator_menu_item_new ();
gtk_widget_show (subitem);
gtk_widget_show (separator);
g_signal_connect (subitem, "activate",
G_CALLBACK (gtk_combo_box_menu_item_activate),
combo_box);
gtk_menu_shell_append (GTK_MENU_SHELL (submenu), subitem);
gtk_menu_shell_append (GTK_MENU_SHELL (submenu), separator);
gtk_combo_box_menu_fill_level (combo_box, submenu, &iter);
}
g_signal_connect (item, "activate",
G_CALLBACK (gtk_combo_box_menu_item_activate),
combo_box);
}
gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
if (priv->wrap_width && menu == priv->popup_widget)
gtk_combo_box_relayout_item (combo_box, item, &iter, last);
gtk_widget_show (item);
last = item;
}
}
static void
gtk_combo_box_menu_destroy (GtkComboBox *combo_box)
{
GtkComboBoxPrivate *priv = combo_box->priv;
g_signal_handlers_disconnect_matched (priv->button,
G_SIGNAL_MATCH_DATA,
0, 0, NULL,
gtk_combo_box_menu_button_press, NULL);
g_signal_handlers_disconnect_matched (priv->button,
G_SIGNAL_MATCH_DATA,
0, 0, NULL,
gtk_combo_box_button_state_changed, combo_box);
/* unparent will remove our latest ref */
gtk_widget_unparent (priv->button);
priv->box = NULL;
priv->button = NULL;
priv->arrow = NULL;
priv->separator = NULL;
g_object_unref (priv->column);
priv->column = NULL;
/* changing the popup window will unref the menu and the children */
}
/*
* grid
*/
static gboolean
menu_occupied (GtkMenu *menu,
guint left_attach,
guint right_attach,
guint top_attach,
guint bottom_attach)
{
GList *i;
for (i = GTK_MENU_SHELL (menu)->children; i; i = i->next)
{
guint l, r, b, t;
gtk_container_child_get (GTK_CONTAINER (menu),
i->data,
"left-attach", &l,
"right-attach", &r,
"bottom-attach", &b,
"top-attach", &t,
NULL);
/* look if this item intersects with the given coordinates */
if (right_attach > l && left_attach < r && bottom_attach > t && top_attach < b)
return TRUE;
}
return FALSE;
}
static void
gtk_combo_box_relayout_item (GtkComboBox *combo_box,
GtkWidget *item,
GtkTreeIter *iter,
GtkWidget *last)
{
GtkComboBoxPrivate *priv = combo_box->priv;
gint current_col = 0, current_row = 0;
gint rows = 1, cols = 1;
GtkWidget *menu = priv->popup_widget;
if (!GTK_IS_MENU_SHELL (menu))
return;
if (priv->col_column == -1 &&
priv->row_column == -1 &&
last)
{
gtk_container_child_get (GTK_CONTAINER (menu),
last,
"right-attach", &current_col,
"top-attach", &current_row,
NULL);
if (current_col + cols > priv->wrap_width)
{
current_col = 0;
current_row++;
}
}
else
{
if (priv->col_column != -1)
gtk_tree_model_get (priv->model, iter,
priv->col_column, &cols,
-1);
if (priv->row_column != -1)
gtk_tree_model_get (priv->model, iter,
priv->row_column, &rows,
-1);
while (1)
{
if (current_col + cols > priv->wrap_width)
{
current_col = 0;
current_row++;
}
if (!menu_occupied (GTK_MENU (menu),
current_col, current_col + cols,
current_row, current_row + rows))
break;
current_col++;
}
}
/* set attach props */
gtk_menu_attach (GTK_MENU (menu), item,
current_col, current_col + cols,
current_row, current_row + rows);
}
static void
gtk_combo_box_relayout (GtkComboBox *combo_box)
{
GList *list, *j;
GtkWidget *menu;
menu = combo_box->priv->popup_widget;
/* do nothing unless we are in menu style and realized */
if (combo_box->priv->tree_view || !GTK_IS_MENU_SHELL (menu))
return;
list = gtk_container_get_children (GTK_CONTAINER (menu));
for (j = g_list_last (list); j; j = j->prev)
gtk_container_remove (GTK_CONTAINER (menu), j->data);
gtk_combo_box_menu_fill (combo_box);
g_list_free (list);
}
/* callbacks */
static gboolean
gtk_combo_box_menu_button_press (GtkWidget *widget,
GdkEventButton *event,
gpointer user_data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (user_data);
GtkComboBoxPrivate *priv = combo_box->priv;
if (GTK_IS_MENU (priv->popup_widget) &&
event->type == GDK_BUTTON_PRESS && event->button == 1)
{
if (priv->focus_on_click &&
!gtk_widget_has_focus (priv->button))
gtk_widget_grab_focus (priv->button);
gtk_combo_box_menu_popup (combo_box, event->button, event->time);
return TRUE;
}
return FALSE;
}
static void
gtk_combo_box_menu_item_activate (GtkWidget *item,
gpointer user_data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (user_data);
GtkWidget *cell_view;
GtkTreePath *path;
GtkTreeIter iter;
cell_view = GTK_BIN (item)->child;
g_return_if_fail (GTK_IS_CELL_VIEW (cell_view));
path = gtk_cell_view_get_displayed_row (GTK_CELL_VIEW (cell_view));
if (gtk_tree_model_get_iter (combo_box->priv->model, &iter, path))
{
if (gtk_menu_item_get_submenu (GTK_MENU_ITEM (item)) == NULL)
gtk_combo_box_set_active_iter (combo_box, &iter);
}
gtk_tree_path_free (path);
g_object_set (combo_box,
"editing-canceled", FALSE,
NULL);
}
static void
gtk_combo_box_update_sensitivity (GtkComboBox *combo_box)
{
GtkTreeIter iter;
gboolean sensitive = TRUE; /* fool code checkers */
if (!combo_box->priv->button)
return;
switch (combo_box->priv->button_sensitivity)
{
case GTK_SENSITIVITY_ON:
sensitive = TRUE;
break;
case GTK_SENSITIVITY_OFF:
sensitive = FALSE;
break;
case GTK_SENSITIVITY_AUTO:
sensitive = combo_box->priv->model &&
gtk_tree_model_get_iter_first (combo_box->priv->model, &iter);
break;
default:
g_assert_not_reached ();
break;
}
gtk_widget_set_sensitive (combo_box->priv->button, sensitive);
/* In list-mode, we also need to update sensitivity of the event box */
if (GTK_IS_TREE_VIEW (combo_box->priv->tree_view)
&& combo_box->priv->cell_view)
gtk_widget_set_sensitive (combo_box->priv->box, sensitive);
}
static void
gtk_combo_box_model_row_inserted (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer user_data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (user_data);
if (combo_box->priv->tree_view)
gtk_combo_box_list_popup_resize (combo_box);
else
gtk_combo_box_menu_row_inserted (model, path, iter, user_data);
gtk_combo_box_update_sensitivity (combo_box);
}
static void
gtk_combo_box_model_row_deleted (GtkTreeModel *model,
GtkTreePath *path,
gpointer user_data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (user_data);
GtkComboBoxPrivate *priv = combo_box->priv;
if (!gtk_tree_row_reference_valid (priv->active_row))
{
if (priv->cell_view)
gtk_cell_view_set_displayed_row (GTK_CELL_VIEW (priv->cell_view), NULL);
g_signal_emit (combo_box, combo_box_signals[CHANGED], 0);
}
if (priv->tree_view)
gtk_combo_box_list_popup_resize (combo_box);
else
gtk_combo_box_menu_row_deleted (model, path, user_data);
gtk_combo_box_update_sensitivity (combo_box);
}
static void
gtk_combo_box_model_rows_reordered (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gint *new_order,
gpointer user_data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (user_data);
gtk_tree_row_reference_reordered (G_OBJECT (user_data), path, iter, new_order);
if (!combo_box->priv->tree_view)
gtk_combo_box_menu_rows_reordered (model, path, iter, new_order, user_data);
}
static void
gtk_combo_box_model_row_changed (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer user_data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (user_data);
GtkComboBoxPrivate *priv = combo_box->priv;
GtkTreePath *active_path;
/* FIXME this belongs to GtkCellView */
if (gtk_tree_row_reference_valid (priv->active_row))
{
active_path = gtk_tree_row_reference_get_path (priv->active_row);
if (gtk_tree_path_compare (path, active_path) == 0 &&
priv->cell_view)
gtk_widget_queue_resize (GTK_WIDGET (priv->cell_view));
gtk_tree_path_free (active_path);
}
if (priv->tree_view)
gtk_combo_box_list_row_changed (model, path, iter, user_data);
else
gtk_combo_box_menu_row_changed (model, path, iter, user_data);
}
static gboolean
list_popup_resize_idle (gpointer user_data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (user_data);
GtkComboBoxPrivate *priv = combo_box->priv;
gint x, y, width, height;
if (priv->tree_view && gtk_widget_get_mapped (priv->popup_window))
{
gtk_combo_box_list_position (combo_box, &x, &y, &width, &height);
gtk_widget_set_size_request (priv->popup_window, width, height);
gtk_window_move (GTK_WINDOW (priv->popup_window), x, y);
}
priv->resize_idle_id = 0;
return FALSE;
}
static void
gtk_combo_box_list_popup_resize (GtkComboBox *combo_box)
{
GtkComboBoxPrivate *priv = combo_box->priv;
if (!priv->resize_idle_id)
priv->resize_idle_id =
gdk_threads_add_idle (list_popup_resize_idle, combo_box);
}
static void
gtk_combo_box_model_row_expanded (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer user_data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (user_data);
gtk_combo_box_list_popup_resize (combo_box);
}
static GtkWidget *
find_menu_by_path (GtkWidget *menu,
GtkTreePath *path,
gboolean skip_first)
{
GList *i, *list;
GtkWidget *item;
GtkWidget *submenu;
GtkTreeRowReference *mref;
GtkTreePath *mpath;
gboolean skip;
list = gtk_container_get_children (GTK_CONTAINER (menu));
skip = skip_first;
item = NULL;
for (i = list; i; i = i->next)
{
if (GTK_IS_SEPARATOR_MENU_ITEM (i->data))
{
mref = g_object_get_data (G_OBJECT (i->data), "gtk-combo-box-item-path");
if (!mref)
continue;
else if (!gtk_tree_row_reference_valid (mref))
mpath = NULL;
else
mpath = gtk_tree_row_reference_get_path (mref);
}
else if (GTK_IS_CELL_VIEW (GTK_BIN (i->data)->child))
{
if (skip)
{
skip = FALSE;
continue;
}
mpath = gtk_cell_view_get_displayed_row (GTK_CELL_VIEW (GTK_BIN (i->data)->child));
}
else
continue;
/* this case is necessary, since the row reference of
* the cell view may already be updated after a deletion
*/
if (!mpath)
{
item = i->data;
break;
}
if (gtk_tree_path_compare (mpath, path) == 0)
{
gtk_tree_path_free (mpath);
item = i->data;
break;
}
if (gtk_tree_path_is_ancestor (mpath, path))
{
submenu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (i->data));
if (submenu != NULL)
{
gtk_tree_path_free (mpath);
item = find_menu_by_path (submenu, path, TRUE);
break;
}
}
gtk_tree_path_free (mpath);
}
g_list_free (list);
return item;
}
#if 0
static void
dump_menu_tree (GtkWidget *menu,
gint level)
{
GList *i, *list;
GtkWidget *submenu;
GtkTreePath *path;
list = gtk_container_get_children (GTK_CONTAINER (menu));
for (i = list; i; i = i->next)
{
if (GTK_IS_CELL_VIEW (GTK_BIN (i->data)->child))
{
path = gtk_cell_view_get_displayed_row (GTK_CELL_VIEW (GTK_BIN (i->data)->child));
g_print ("%*s%s\n", 2 * level, " ", gtk_tree_path_to_string (path));
gtk_tree_path_free (path);
submenu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (i->data));
if (submenu != NULL)
dump_menu_tree (submenu, level + 1);
}
}
g_list_free (list);
}
#endif
static void
gtk_combo_box_menu_row_inserted (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer user_data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (user_data);
GtkComboBoxPrivate *priv = combo_box->priv;
GtkWidget *parent;
GtkWidget *item, *menu, *separator;
GtkTreePath *ppath;
GtkTreeIter piter;
gint depth, pos;
gboolean is_separator;
if (!priv->popup_widget)
return;
depth = gtk_tree_path_get_depth (path);
pos = gtk_tree_path_get_indices (path)[depth - 1];
if (depth > 1)
{
ppath = gtk_tree_path_copy (path);
gtk_tree_path_up (ppath);
parent = find_menu_by_path (priv->popup_widget, ppath, FALSE);
gtk_tree_path_free (ppath);
menu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (parent));
if (!menu)
{
menu = gtk_menu_new ();
gtk_menu_set_reserve_toggle_size (GTK_MENU (menu), FALSE);
gtk_widget_show (menu);
gtk_menu_item_set_submenu (GTK_MENU_ITEM (parent), menu);
/* Ugly - since menus can only activate leaves, we have to
* duplicate the item inside the submenu.
*/
gtk_tree_model_iter_parent (model, &piter, iter);
item = gtk_cell_view_menu_item_new (combo_box, model, &piter);
separator = gtk_separator_menu_item_new ();
g_signal_connect (item, "activate",
G_CALLBACK (gtk_combo_box_menu_item_activate),
combo_box);
gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
gtk_menu_shell_append (GTK_MENU_SHELL (menu), separator);
if (cell_view_is_sensitive (GTK_CELL_VIEW (GTK_BIN (item)->child)))
{
gtk_widget_show (item);
gtk_widget_show (separator);
}
}
pos += 2;
}
else
{
menu = priv->popup_widget;
if (priv->add_tearoffs)
pos += 1;
}
if (priv->row_separator_func)
is_separator = priv->row_separator_func (model, iter,
priv->row_separator_data);
else
is_separator = FALSE;
if (is_separator)
{
item = gtk_separator_menu_item_new ();
g_object_set_data_full (G_OBJECT (item),
I_("gtk-combo-box-item-path"),
gtk_tree_row_reference_new (model, path),
(GDestroyNotify)gtk_tree_row_reference_free);
}
else
{
item = gtk_cell_view_menu_item_new (combo_box, model, iter);
g_signal_connect (item, "activate",
G_CALLBACK (gtk_combo_box_menu_item_activate),
combo_box);
}
gtk_widget_show (item);
gtk_menu_shell_insert (GTK_MENU_SHELL (menu), item, pos);
}
static void
gtk_combo_box_menu_row_deleted (GtkTreeModel *model,
GtkTreePath *path,
gpointer user_data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (user_data);
GtkComboBoxPrivate *priv = combo_box->priv;
GtkWidget *menu;
GtkWidget *item;
if (!priv->popup_widget)
return;
item = find_menu_by_path (priv->popup_widget, path, FALSE);
menu = gtk_widget_get_parent (item);
gtk_container_remove (GTK_CONTAINER (menu), item);
if (gtk_tree_path_get_depth (path) > 1)
{
GtkTreePath *parent_path;
GtkTreeIter iter;
GtkWidget *parent;
parent_path = gtk_tree_path_copy (path);
gtk_tree_path_up (parent_path);
gtk_tree_model_get_iter (model, &iter, parent_path);
if (!gtk_tree_model_iter_has_child (model, &iter))
{
parent = find_menu_by_path (priv->popup_widget,
parent_path, FALSE);
gtk_menu_item_set_submenu (GTK_MENU_ITEM (parent), NULL);
}
}
}
static void
gtk_combo_box_menu_rows_reordered (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gint *new_order,
gpointer user_data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (user_data);
gtk_combo_box_relayout (combo_box);
}
static void
gtk_combo_box_menu_row_changed (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer user_data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (user_data);
GtkComboBoxPrivate *priv = combo_box->priv;
GtkWidget *item;
gint width;
gboolean is_separator;
if (!priv->popup_widget)
return;
item = find_menu_by_path (priv->popup_widget, path, FALSE);
if (priv->row_separator_func)
is_separator = priv->row_separator_func (model, iter,
priv->row_separator_data);
else
is_separator = FALSE;
if (is_separator != GTK_IS_SEPARATOR_MENU_ITEM (item))
{
gtk_combo_box_menu_row_deleted (model, path, combo_box);
gtk_combo_box_menu_row_inserted (model, path, iter, combo_box);
}
if (priv->wrap_width && item->parent == priv->popup_widget)
{
GtkWidget *pitem = NULL;
GtkTreePath *prev;
prev = gtk_tree_path_copy (path);
if (gtk_tree_path_prev (prev))
pitem = find_menu_by_path (priv->popup_widget, prev, FALSE);
gtk_tree_path_free (prev);
/* unattach item so gtk_combo_box_relayout_item() won't spuriously
move it */
gtk_container_child_set (GTK_CONTAINER (priv->popup_widget),
item,
"left-attach", -1,
"right-attach", -1,
"top-attach", -1,
"bottom-attach", -1,
NULL);
gtk_combo_box_relayout_item (combo_box, item, iter, pitem);
}
width = gtk_combo_box_calc_requested_width (combo_box, path);
if (width > priv->minimum_size.width)
{
if (priv->cell_view)
{
gtk_widget_set_size_request (priv->cell_view, width, -1);
gtk_widget_queue_resize (priv->cell_view);
}
priv->minimum_size.width = width;
}
}
/*
* list style
*/
static void
gtk_combo_box_list_setup (GtkComboBox *combo_box)
{
GtkComboBoxPrivate *priv = combo_box->priv;
GtkTreeSelection *sel;
GtkStyle *style;
GtkWidget *widget = GTK_WIDGET (combo_box);
priv->button = gtk_toggle_button_new ();
gtk_widget_set_parent (priv->button,
GTK_BIN (combo_box)->child->parent);
g_signal_connect (priv->button, "button-press-event",
G_CALLBACK (gtk_combo_box_list_button_pressed), combo_box);
g_signal_connect (priv->button, "toggled",
G_CALLBACK (gtk_combo_box_button_toggled), combo_box);
priv->arrow = gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_NONE);
gtk_container_add (GTK_CONTAINER (priv->button), priv->arrow);
priv->separator = NULL;
gtk_widget_show_all (priv->button);
if (priv->cell_view)
{
style = gtk_widget_get_style (widget);
gtk_cell_view_set_background_color (GTK_CELL_VIEW (priv->cell_view),
&style->base[gtk_widget_get_state (widget)]);
priv->box = gtk_event_box_new ();
gtk_event_box_set_visible_window (GTK_EVENT_BOX (priv->box),
FALSE);
if (priv->has_frame)
{
priv->cell_view_frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (priv->cell_view_frame),
GTK_SHADOW_IN);
}
else
{
combo_box->priv->cell_view_frame = gtk_event_box_new ();
gtk_event_box_set_visible_window (GTK_EVENT_BOX (combo_box->priv->cell_view_frame),
FALSE);
}
gtk_widget_set_parent (priv->cell_view_frame,
GTK_BIN (combo_box)->child->parent);
gtk_container_add (GTK_CONTAINER (priv->cell_view_frame), priv->box);
gtk_widget_show_all (priv->cell_view_frame);
g_signal_connect (priv->box, "button-press-event",
G_CALLBACK (gtk_combo_box_list_button_pressed),
combo_box);
}
priv->tree_view = gtk_tree_view_new ();
sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (priv->tree_view));
gtk_tree_selection_set_mode (sel, GTK_SELECTION_BROWSE);
gtk_tree_selection_set_select_function (sel,
gtk_combo_box_list_select_func,
NULL, NULL);
gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (priv->tree_view),
FALSE);
gtk_tree_view_set_hover_selection (GTK_TREE_VIEW (priv->tree_view),
TRUE);
if (priv->row_separator_func)
gtk_tree_view_set_row_separator_func (GTK_TREE_VIEW (priv->tree_view),
priv->row_separator_func,
priv->row_separator_data,
NULL);
if (priv->model)
gtk_tree_view_set_model (GTK_TREE_VIEW (priv->tree_view), priv->model);
priv->column = gtk_tree_view_column_new ();
gtk_tree_view_append_column (GTK_TREE_VIEW (priv->tree_view), priv->column);
/* sync up */
gtk_combo_box_sync_cells (combo_box,
GTK_CELL_LAYOUT (priv->column));
if (gtk_tree_row_reference_valid (priv->active_row))
{
GtkTreePath *path;
path = gtk_tree_row_reference_get_path (priv->active_row);
gtk_tree_view_set_cursor (GTK_TREE_VIEW (priv->tree_view),
path, NULL, FALSE);
gtk_tree_path_free (path);
}
/* set sample/popup widgets */
gtk_combo_box_set_popup_widget (combo_box, priv->tree_view);
g_signal_connect (priv->tree_view, "key-press-event",
G_CALLBACK (gtk_combo_box_list_key_press),
combo_box);
g_signal_connect (priv->tree_view, "enter-notify-event",
G_CALLBACK (gtk_combo_box_list_enter_notify),
combo_box);
g_signal_connect (priv->tree_view, "row-expanded",
G_CALLBACK (gtk_combo_box_model_row_expanded),
combo_box);
g_signal_connect (priv->tree_view, "row-collapsed",
G_CALLBACK (gtk_combo_box_model_row_expanded),
combo_box);
g_signal_connect (priv->popup_window, "button-press-event",
G_CALLBACK (gtk_combo_box_list_button_pressed),
combo_box);
g_signal_connect (priv->popup_window, "button-release-event",
G_CALLBACK (gtk_combo_box_list_button_released),
combo_box);
gtk_widget_show (priv->tree_view);
gtk_combo_box_update_sensitivity (combo_box);
}
static void
gtk_combo_box_list_destroy (GtkComboBox *combo_box)
{
GtkComboBoxPrivate *priv = combo_box->priv;
/* disconnect signals */
g_signal_handlers_disconnect_matched (priv->tree_view,
G_SIGNAL_MATCH_DATA,
0, 0, NULL, NULL, combo_box);
g_signal_handlers_disconnect_matched (priv->button,
G_SIGNAL_MATCH_DATA,
0, 0, NULL,
gtk_combo_box_list_button_pressed,
NULL);
g_signal_handlers_disconnect_matched (priv->popup_window,
G_SIGNAL_MATCH_DATA,
0, 0, NULL,
gtk_combo_box_list_button_pressed,
NULL);
g_signal_handlers_disconnect_matched (priv->popup_window,
G_SIGNAL_MATCH_DATA,
0, 0, NULL,
gtk_combo_box_list_button_released,
NULL);
g_signal_handlers_disconnect_matched (priv->popup_window,
G_SIGNAL_MATCH_DATA,
0, 0, NULL,
gtk_combo_box_child_show,
NULL);
g_signal_handlers_disconnect_matched (priv->popup_window,
G_SIGNAL_MATCH_DATA,
0, 0, NULL,
gtk_combo_box_child_hide,
NULL);
if (priv->box)
g_signal_handlers_disconnect_matched (priv->box,
G_SIGNAL_MATCH_DATA,
0, 0, NULL,
gtk_combo_box_list_button_pressed,
NULL);
/* destroy things (unparent will kill the latest ref from us)
* last unref on button will destroy the arrow
*/
gtk_widget_unparent (priv->button);
priv->button = NULL;
priv->arrow = NULL;
if (priv->cell_view)
{
g_object_set (priv->cell_view,
"background-set", FALSE,
NULL);
}
if (priv->cell_view_frame)
{
gtk_widget_unparent (priv->cell_view_frame);
priv->cell_view_frame = NULL;
priv->box = NULL;
}
if (priv->scroll_timer)
{
g_source_remove (priv->scroll_timer);
priv->scroll_timer = 0;
}
if (priv->resize_idle_id)
{
g_source_remove (priv->resize_idle_id);
priv->resize_idle_id = 0;
}
gtk_widget_destroy (priv->tree_view);
priv->tree_view = NULL;
if (priv->popup_widget)
{
g_object_unref (priv->popup_widget);
priv->popup_widget = NULL;
}
}
/* callbacks */
static gboolean
gtk_combo_box_list_button_pressed (GtkWidget *widget,
GdkEventButton *event,
gpointer data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (data);
GtkComboBoxPrivate *priv = combo_box->priv;
GtkWidget *ewidget = gtk_get_event_widget ((GdkEvent *)event);
if (ewidget == priv->popup_window)
return TRUE;
if ((ewidget != priv->button && ewidget != priv->box) ||
gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (priv->button)))
return FALSE;
if (priv->focus_on_click &&
!gtk_widget_has_focus (priv->button))
gtk_widget_grab_focus (priv->button);
gtk_combo_box_popup (combo_box);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (priv->button), TRUE);
priv->auto_scroll = FALSE;
if (priv->scroll_timer == 0)
priv->scroll_timer = gdk_threads_add_timeout (SCROLL_TIME,
(GSourceFunc) gtk_combo_box_list_scroll_timeout,
combo_box);
priv->popup_in_progress = TRUE;
return TRUE;
}
static gboolean
gtk_combo_box_list_button_released (GtkWidget *widget,
GdkEventButton *event,
gpointer data)
{
gboolean ret;
GtkTreePath *path = NULL;
GtkTreeIter iter;
GtkComboBox *combo_box = GTK_COMBO_BOX (data);
GtkComboBoxPrivate *priv = combo_box->priv;
gboolean popup_in_progress = FALSE;
GtkWidget *ewidget = gtk_get_event_widget ((GdkEvent *)event);
if (priv->popup_in_progress)
{
popup_in_progress = TRUE;
priv->popup_in_progress = FALSE;
}
gtk_tree_view_set_hover_expand (GTK_TREE_VIEW (priv->tree_view),
FALSE);
if (priv->scroll_timer)
{
g_source_remove (priv->scroll_timer);
priv->scroll_timer = 0;
}
if (ewidget != priv->tree_view)
{
if ((ewidget == priv->button ||
ewidget == priv->box) &&
!popup_in_progress &&
gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (priv->button)))
{
gtk_combo_box_popdown (combo_box);
return TRUE;
}
/* released outside treeview */
if (ewidget != priv->button && ewidget != priv->box)
{
gtk_combo_box_popdown (combo_box);
return TRUE;
}
return FALSE;
}
/* select something cool */
ret = gtk_tree_view_get_path_at_pos (GTK_TREE_VIEW (priv->tree_view),
event->x, event->y,
&path,
NULL, NULL, NULL);
if (!ret)
return TRUE; /* clicked outside window? */
gtk_tree_model_get_iter (priv->model, &iter, path);
gtk_tree_path_free (path);
gtk_combo_box_popdown (combo_box);
if (tree_column_row_is_sensitive (combo_box, &iter))
gtk_combo_box_set_active_iter (combo_box, &iter);
return TRUE;
}
static gboolean
gtk_combo_box_menu_key_press (GtkWidget *widget,
GdkEventKey *event,
gpointer data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (data);
if (!gtk_bindings_activate_event (GTK_OBJECT (widget), event))
{
/* The menu hasn't managed the
* event, forward it to the combobox
*/
gtk_bindings_activate_event (GTK_OBJECT (combo_box), event);
}
return TRUE;
}
static gboolean
gtk_combo_box_list_key_press (GtkWidget *widget,
GdkEventKey *event,
gpointer data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (data);
GtkTreeIter iter;
if (event->keyval == GDK_Return || event->keyval == GDK_ISO_Enter || event->keyval == GDK_KP_Enter ||
event->keyval == GDK_space || event->keyval == GDK_KP_Space)
{
GtkTreeModel *model = NULL;
gtk_combo_box_popdown (combo_box);
if (combo_box->priv->model)
{
GtkTreeSelection *sel;
sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (combo_box->priv->tree_view));
if (gtk_tree_selection_get_selected (sel, &model, &iter))
gtk_combo_box_set_active_iter (combo_box, &iter);
}
return TRUE;
}
if (!gtk_bindings_activate_event (GTK_OBJECT (widget), event))
{
/* The list hasn't managed the
* event, forward it to the combobox
*/
gtk_bindings_activate_event (GTK_OBJECT (combo_box), event);
}
return TRUE;
}
static void
gtk_combo_box_list_auto_scroll (GtkComboBox *combo_box,
gint x,
gint y)
{
GtkWidget *tree_view = combo_box->priv->tree_view;
GtkAdjustment *adj;
gdouble value;
adj = gtk_scrolled_window_get_hadjustment (GTK_SCROLLED_WINDOW (combo_box->priv->scrolled_window));
if (adj && adj->upper - adj->lower > adj->page_size)
{
if (x <= tree_view->allocation.x &&
adj->lower < adj->value)
{
value = adj->value - (tree_view->allocation.x - x + 1);
gtk_adjustment_set_value (adj, CLAMP (value, adj->lower, adj->upper - adj->page_size));
}
else if (x >= tree_view->allocation.x + tree_view->allocation.width &&
adj->upper - adj->page_size > adj->value)
{
value = adj->value + (x - tree_view->allocation.x - tree_view->allocation.width + 1);
gtk_adjustment_set_value (adj, CLAMP (value, 0.0, adj->upper - adj->page_size));
}
}
adj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (combo_box->priv->scrolled_window));
if (adj && adj->upper - adj->lower > adj->page_size)
{
if (y <= tree_view->allocation.y &&
adj->lower < adj->value)
{
value = adj->value - (tree_view->allocation.y - y + 1);
gtk_adjustment_set_value (adj, CLAMP (value, adj->lower, adj->upper - adj->page_size));
}
else if (y >= tree_view->allocation.height &&
adj->upper - adj->page_size > adj->value)
{
value = adj->value + (y - tree_view->allocation.height + 1);
gtk_adjustment_set_value (adj, CLAMP (value, 0.0, adj->upper - adj->page_size));
}
}
}
static gboolean
gtk_combo_box_list_scroll_timeout (GtkComboBox *combo_box)
{
GtkComboBoxPrivate *priv = combo_box->priv;
gint x, y;
if (priv->auto_scroll)
{
gdk_window_get_pointer (priv->tree_view->window, &x, &y, NULL);
gtk_combo_box_list_auto_scroll (combo_box, x, y);
}
return TRUE;
}
static gboolean
gtk_combo_box_list_enter_notify (GtkWidget *widget,
GdkEventCrossing *event,
gpointer data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (data);
combo_box->priv->auto_scroll = TRUE;
return TRUE;
}
static gboolean
gtk_combo_box_list_select_func (GtkTreeSelection *selection,
GtkTreeModel *model,
GtkTreePath *path,
gboolean path_currently_selected,
gpointer data)
{
GList *list;
gboolean sensitive = FALSE;
for (list = selection->tree_view->priv->columns; list && !sensitive; list = list->next)
{
GList *cells, *cell;
gboolean cell_sensitive, cell_visible;
GtkTreeIter iter;
GtkTreeViewColumn *column = GTK_TREE_VIEW_COLUMN (list->data);
if (!column->visible)
continue;
gtk_tree_model_get_iter (model, &iter, path);
gtk_tree_view_column_cell_set_cell_data (column, model, &iter,
FALSE, FALSE);
cell = cells = gtk_cell_layout_get_cells (GTK_CELL_LAYOUT (column));
while (cell)
{
g_object_get (cell->data,
"sensitive", &cell_sensitive,
"visible", &cell_visible,
NULL);
if (cell_visible && cell_sensitive)
break;
cell = cell->next;
}
g_list_free (cells);
sensitive = cell_sensitive;
}
return sensitive;
}
static void
gtk_combo_box_list_row_changed (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (data);
GtkComboBoxPrivate *priv = combo_box->priv;
gint width;
width = gtk_combo_box_calc_requested_width (combo_box, path);
if (width > priv->minimum_size.width)
{
if (priv->cell_view)
{
gtk_widget_set_size_request (priv->cell_view, width, -1);
gtk_widget_queue_resize (priv->cell_view);
}
priv->minimum_size.width = width;
}
}
/*
* GtkCellLayout implementation
*/
static void
pack_start_recurse (GtkWidget *menu,
GtkCellRenderer *cell,
gboolean expand)
{
GList *i, *list;
GtkWidget *submenu;
list = gtk_container_get_children (GTK_CONTAINER (menu));
for (i = list; i; i = i->next)
{
if (GTK_IS_CELL_LAYOUT (GTK_BIN (i->data)->child))
gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (GTK_BIN (i->data)->child),
cell, expand);
submenu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (i->data));
if (submenu != NULL)
pack_start_recurse (submenu, cell, expand);
}
g_list_free (list);
}
static void
gtk_combo_box_cell_layout_pack_start (GtkCellLayout *layout,
GtkCellRenderer *cell,
gboolean expand)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (layout);
ComboCellInfo *info;
GtkComboBoxPrivate *priv;
priv = combo_box->priv;
g_object_ref_sink (cell);
info = g_slice_new0 (ComboCellInfo);
info->cell = cell;
info->expand = expand;
info->pack = GTK_PACK_START;
priv->cells = g_slist_append (priv->cells, info);
if (priv->cell_view)
{
gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (priv->cell_view),
cell, expand);
}
if (priv->column)
gtk_tree_view_column_pack_start (priv->column, cell, expand);
if (GTK_IS_MENU (priv->popup_widget))
pack_start_recurse (priv->popup_widget, cell, expand);
}
static void
pack_end_recurse (GtkWidget *menu,
GtkCellRenderer *cell,
gboolean expand)
{
GList *i, *list;
GtkWidget *submenu;
list = gtk_container_get_children (GTK_CONTAINER (menu));
for (i = list; i; i = i->next)
{
if (GTK_IS_CELL_LAYOUT (GTK_BIN (i->data)->child))
gtk_cell_layout_pack_end (GTK_CELL_LAYOUT (GTK_BIN (i->data)->child),
cell, expand);
submenu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (i->data));
if (submenu != NULL)
pack_end_recurse (submenu, cell, expand);
}
g_list_free (list);
}
static void
gtk_combo_box_cell_layout_pack_end (GtkCellLayout *layout,
GtkCellRenderer *cell,
gboolean expand)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (layout);
ComboCellInfo *info;
GtkComboBoxPrivate *priv;
priv = combo_box->priv;
g_object_ref_sink (cell);
info = g_slice_new0 (ComboCellInfo);
info->cell = cell;
info->expand = expand;
info->pack = GTK_PACK_END;
priv->cells = g_slist_append (priv->cells, info);
if (priv->cell_view)
gtk_cell_layout_pack_end (GTK_CELL_LAYOUT (priv->cell_view),
cell, expand);
if (priv->column)
gtk_tree_view_column_pack_end (priv->column, cell, expand);
if (GTK_IS_MENU (priv->popup_widget))
pack_end_recurse (priv->popup_widget, cell, expand);
}
static GList *
gtk_combo_box_cell_layout_get_cells (GtkCellLayout *layout)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (layout);
GSList *list;
GList *retval = NULL;
for (list = combo_box->priv->cells; list; list = list->next)
{
ComboCellInfo *info = (ComboCellInfo *)list->data;
retval = g_list_prepend (retval, info->cell);
}
return g_list_reverse (retval);
}
static void
clear_recurse (GtkWidget *menu)
{
GList *i, *list;
GtkWidget *submenu;
list = gtk_container_get_children (GTK_CONTAINER (menu));
for (i = list; i; i = i->next)
{
if (GTK_IS_CELL_LAYOUT (GTK_BIN (i->data)->child))
gtk_cell_layout_clear (GTK_CELL_LAYOUT (GTK_BIN (i->data)->child));
submenu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (i->data));
if (submenu != NULL)
clear_recurse (submenu);
}
g_list_free (list);
}
static void
gtk_combo_box_cell_layout_clear (GtkCellLayout *layout)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (layout);
GtkComboBoxPrivate *priv = combo_box->priv;
GSList *i;
if (priv->cell_view)
gtk_cell_layout_clear (GTK_CELL_LAYOUT (priv->cell_view));
if (priv->column)
gtk_tree_view_column_clear (priv->column);
for (i = priv->cells; i; i = i->next)
{
ComboCellInfo *info = (ComboCellInfo *)i->data;
gtk_combo_box_cell_layout_clear_attributes (layout, info->cell);
g_object_unref (info->cell);
g_slice_free (ComboCellInfo, info);
i->data = NULL;
}
g_slist_free (priv->cells);
priv->cells = NULL;
if (GTK_IS_MENU (priv->popup_widget))
clear_recurse (priv->popup_widget);
}
static void
add_attribute_recurse (GtkWidget *menu,
GtkCellRenderer *cell,
const gchar *attribute,
gint column)
{
GList *i, *list;
GtkWidget *submenu;
list = gtk_container_get_children (GTK_CONTAINER (menu));
for (i = list; i; i = i->next)
{
if (GTK_IS_CELL_LAYOUT (GTK_BIN (i->data)->child))
gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (GTK_BIN (i->data)->child),
cell, attribute, column);
submenu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (i->data));
if (submenu != NULL)
add_attribute_recurse (submenu, cell, attribute, column);
}
g_list_free (list);
}
static void
gtk_combo_box_cell_layout_add_attribute (GtkCellLayout *layout,
GtkCellRenderer *cell,
const gchar *attribute,
gint column)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (layout);
ComboCellInfo *info;
info = gtk_combo_box_get_cell_info (combo_box, cell);
g_return_if_fail (info != NULL);
info->attributes = g_slist_prepend (info->attributes,
GINT_TO_POINTER (column));
info->attributes = g_slist_prepend (info->attributes,
g_strdup (attribute));
if (combo_box->priv->cell_view)
gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (combo_box->priv->cell_view),
cell, attribute, column);
if (combo_box->priv->column)
gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (combo_box->priv->column),
cell, attribute, column);
if (GTK_IS_MENU (combo_box->priv->popup_widget))
add_attribute_recurse (combo_box->priv->popup_widget, cell, attribute, column);
gtk_widget_queue_resize (GTK_WIDGET (combo_box));
}
static void
combo_cell_data_func (GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
GtkTreeModel *tree_model,
GtkTreeIter *iter,
gpointer data)
{
ComboCellInfo *info = (ComboCellInfo *)data;
GtkWidget *parent = NULL;
if (!info->func)
return;
info->func (cell_layout, cell, tree_model, iter, info->func_data);
if (GTK_IS_WIDGET (cell_layout))
parent = gtk_widget_get_parent (GTK_WIDGET (cell_layout));
if (GTK_IS_MENU_ITEM (parent) &&
gtk_menu_item_get_submenu (GTK_MENU_ITEM (parent)))
g_object_set (cell, "sensitive", TRUE, NULL);
}
static void
set_cell_data_func_recurse (GtkWidget *menu,
GtkCellRenderer *cell,
ComboCellInfo *info)
{
GList *i, *list;
GtkWidget *submenu;
GtkWidget *cell_view;
list = gtk_container_get_children (GTK_CONTAINER (menu));
for (i = list; i; i = i->next)
{
cell_view = GTK_BIN (i->data)->child;
if (GTK_IS_CELL_LAYOUT (cell_view))
{
/* Override sensitivity for inner nodes; we don't
* want menuitems with submenus to appear insensitive
*/
gtk_cell_layout_set_cell_data_func (GTK_CELL_LAYOUT (cell_view),
cell,
combo_cell_data_func,
info, NULL);
submenu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (i->data));
if (submenu != NULL)
set_cell_data_func_recurse (submenu, cell, info);
}
}
g_list_free (list);
}
static void
gtk_combo_box_cell_layout_set_cell_data_func (GtkCellLayout *layout,
GtkCellRenderer *cell,
GtkCellLayoutDataFunc func,
gpointer func_data,
GDestroyNotify destroy)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (layout);
GtkComboBoxPrivate *priv = combo_box->priv;
ComboCellInfo *info;
info = gtk_combo_box_get_cell_info (combo_box, cell);
g_return_if_fail (info != NULL);
if (info->destroy)
{
GDestroyNotify d = info->destroy;
info->destroy = NULL;
d (info->func_data);
}
info->func = func;
info->func_data = func_data;
info->destroy = destroy;
if (priv->cell_view)
gtk_cell_layout_set_cell_data_func (GTK_CELL_LAYOUT (priv->cell_view), cell, func, func_data, NULL);
if (priv->column)
gtk_cell_layout_set_cell_data_func (GTK_CELL_LAYOUT (priv->column), cell, func, func_data, NULL);
if (GTK_IS_MENU (priv->popup_widget))
set_cell_data_func_recurse (priv->popup_widget, cell, info);
gtk_widget_queue_resize (GTK_WIDGET (combo_box));
}
static void
clear_attributes_recurse (GtkWidget *menu,
GtkCellRenderer *cell)
{
GList *i, *list;
GtkWidget *submenu;
list = gtk_container_get_children (GTK_CONTAINER (menu));
for (i = list; i; i = i->next)
{
if (GTK_IS_CELL_LAYOUT (GTK_BIN (i->data)->child))
gtk_cell_layout_clear_attributes (GTK_CELL_LAYOUT (GTK_BIN (i->data)->child),
cell);
submenu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (i->data));
if (submenu != NULL)
clear_attributes_recurse (submenu, cell);
}
g_list_free (list);
}
static void
gtk_combo_box_cell_layout_clear_attributes (GtkCellLayout *layout,
GtkCellRenderer *cell)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (layout);
GtkComboBoxPrivate *priv;
ComboCellInfo *info;
GSList *list;
priv = combo_box->priv;
info = gtk_combo_box_get_cell_info (combo_box, cell);
g_return_if_fail (info != NULL);
list = info->attributes;
while (list && list->next)
{
g_free (list->data);
list = list->next->next;
}
g_slist_free (info->attributes);
info->attributes = NULL;
if (priv->cell_view)
gtk_cell_layout_clear_attributes (GTK_CELL_LAYOUT (priv->cell_view), cell);
if (priv->column)
gtk_cell_layout_clear_attributes (GTK_CELL_LAYOUT (priv->column), cell);
if (GTK_IS_MENU (priv->popup_widget))
clear_attributes_recurse (priv->popup_widget, cell);
gtk_widget_queue_resize (GTK_WIDGET (combo_box));
}
static void
reorder_recurse (GtkWidget *menu,
GtkCellRenderer *cell,
gint position)
{
GList *i, *list;
GtkWidget *submenu;
list = gtk_container_get_children (GTK_CONTAINER (menu));
for (i = list; i; i = i->next)
{
if (GTK_IS_CELL_LAYOUT (GTK_BIN (i->data)->child))
gtk_cell_layout_reorder (GTK_CELL_LAYOUT (GTK_BIN (i->data)->child),
cell, position);
submenu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (i->data));
if (submenu != NULL)
reorder_recurse (submenu, cell, position);
}
g_list_free (list);
}
static void
gtk_combo_box_cell_layout_reorder (GtkCellLayout *layout,
GtkCellRenderer *cell,
gint position)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (layout);
GtkComboBoxPrivate *priv;
ComboCellInfo *info;
GSList *link;
priv = combo_box->priv;
info = gtk_combo_box_get_cell_info (combo_box, cell);
g_return_if_fail (info != NULL);
g_return_if_fail (position >= 0);
link = g_slist_find (priv->cells, info);
g_return_if_fail (link != NULL);
priv->cells = g_slist_delete_link (priv->cells, link);
priv->cells = g_slist_insert (priv->cells, info, position);
if (priv->cell_view)
gtk_cell_layout_reorder (GTK_CELL_LAYOUT (priv->cell_view),
cell, position);
if (priv->column)
gtk_cell_layout_reorder (GTK_CELL_LAYOUT (priv->column),
cell, position);
if (GTK_IS_MENU (priv->popup_widget))
reorder_recurse (priv->popup_widget, cell, position);
gtk_widget_queue_draw (GTK_WIDGET (combo_box));
}
/*
* public API
*/
/**
* gtk_combo_box_new:
*
* Creates a new empty #GtkComboBox.
*
* Return value: A new #GtkComboBox.
*
* Since: 2.4
*/
GtkWidget *
gtk_combo_box_new (void)
{
return g_object_new (GTK_TYPE_COMBO_BOX, NULL);
}
/**
* gtk_combo_box_new_with_model:
* @model: A #GtkTreeModel.
*
* Creates a new #GtkComboBox with the model initialized to @model.
*
* Return value: A new #GtkComboBox.
*
* Since: 2.4
*/
GtkWidget *
gtk_combo_box_new_with_model (GtkTreeModel *model)
{
GtkComboBox *combo_box;
g_return_val_if_fail (GTK_IS_TREE_MODEL (model), NULL);
combo_box = g_object_new (GTK_TYPE_COMBO_BOX, "model", model, NULL);
return GTK_WIDGET (combo_box);
}
/**
* gtk_combo_box_get_wrap_width:
* @combo_box: A #GtkComboBox
*
* Returns the wrap width which is used to determine the number of columns
* for the popup menu. If the wrap width is larger than 1, the combo box
* is in table mode.
*
* Returns: the wrap width.
*
* Since: 2.6
*/
gint
gtk_combo_box_get_wrap_width (GtkComboBox *combo_box)
{
g_return_val_if_fail (GTK_IS_COMBO_BOX (combo_box), -1);
return combo_box->priv->wrap_width;
}
/**
* gtk_combo_box_set_wrap_width:
* @combo_box: A #GtkComboBox
* @width: Preferred number of columns
*
* Sets the wrap width of @combo_box to be @width. The wrap width is basically
* the preferred number of columns when you want the popup to be layed out
* in a table.
*
* Since: 2.4
*/
void
gtk_combo_box_set_wrap_width (GtkComboBox *combo_box,
gint width)
{
GtkComboBoxPrivate *priv;
g_return_if_fail (GTK_IS_COMBO_BOX (combo_box));
g_return_if_fail (width >= 0);
priv = combo_box->priv;
if (width != priv->wrap_width)
{
priv->wrap_width = width;
gtk_combo_box_check_appearance (combo_box);
gtk_combo_box_relayout (combo_box);
g_object_notify (G_OBJECT (combo_box), "wrap-width");
}
}
/**
* gtk_combo_box_get_row_span_column:
* @combo_box: A #GtkComboBox
*
* Returns the column with row span information for @combo_box.
*
* Returns: the row span column.
*
* Since: 2.6
*/
gint
gtk_combo_box_get_row_span_column (GtkComboBox *combo_box)
{
g_return_val_if_fail (GTK_IS_COMBO_BOX (combo_box), -1);
return combo_box->priv->row_column;
}
/**
* gtk_combo_box_set_row_span_column:
* @combo_box: A #GtkComboBox.
* @row_span: A column in the model passed during construction.
*
* Sets the column with row span information for @combo_box to be @row_span.
* The row span column contains integers which indicate how many rows
* an item should span.
*
* Since: 2.4
*/
void
gtk_combo_box_set_row_span_column (GtkComboBox *combo_box,
gint row_span)
{
GtkComboBoxPrivate *priv;
gint col;
g_return_if_fail (GTK_IS_COMBO_BOX (combo_box));
priv = combo_box->priv;
col = gtk_tree_model_get_n_columns (priv->model);
g_return_if_fail (row_span >= -1 && row_span < col);
if (row_span != priv->row_column)
{
priv->row_column = row_span;
gtk_combo_box_relayout (combo_box);
g_object_notify (G_OBJECT (combo_box), "row-span-column");
}
}
/**
* gtk_combo_box_get_column_span_column:
* @combo_box: A #GtkComboBox
*
* Returns the column with column span information for @combo_box.
*
* Returns: the column span column.
*
* Since: 2.6
*/
gint
gtk_combo_box_get_column_span_column (GtkComboBox *combo_box)
{
g_return_val_if_fail (GTK_IS_COMBO_BOX (combo_box), -1);
return combo_box->priv->col_column;
}
/**
* gtk_combo_box_set_column_span_column:
* @combo_box: A #GtkComboBox
* @column_span: A column in the model passed during construction
*
* Sets the column with column span information for @combo_box to be
* @column_span. The column span column contains integers which indicate
* how many columns an item should span.
*
* Since: 2.4
*/
void
gtk_combo_box_set_column_span_column (GtkComboBox *combo_box,
gint column_span)
{
GtkComboBoxPrivate *priv;
gint col;
g_return_if_fail (GTK_IS_COMBO_BOX (combo_box));
priv = combo_box->priv;
col = gtk_tree_model_get_n_columns (priv->model);
g_return_if_fail (column_span >= -1 && column_span < col);
if (column_span != priv->col_column)
{
priv->col_column = column_span;
gtk_combo_box_relayout (combo_box);
g_object_notify (G_OBJECT (combo_box), "column-span-column");
}
}
/**
* gtk_combo_box_get_active:
* @combo_box: A #GtkComboBox
*
* Returns the index of the currently active item, or -1 if there's no
* active item. If the model is a non-flat treemodel, and the active item
* is not an immediate child of the root of the tree, this function returns
* <literal>gtk_tree_path_get_indices (path)[0]</literal>, where
* <literal>path</literal> is the #GtkTreePath of the active item.
*
* Return value: An integer which is the index of the currently active item,
* or -1 if there's no active item.
*
* Since: 2.4
*/
gint
gtk_combo_box_get_active (GtkComboBox *combo_box)
{
GtkComboBoxPrivate *priv;
gint result;
g_return_val_if_fail (GTK_IS_COMBO_BOX (combo_box), 0);
priv = combo_box->priv;
if (gtk_tree_row_reference_valid (priv->active_row))
{
GtkTreePath *path;
path = gtk_tree_row_reference_get_path (priv->active_row);
result = gtk_tree_path_get_indices (path)[0];
gtk_tree_path_free (path);
}
else
result = -1;
return result;
}
/**
* gtk_combo_box_set_active:
* @combo_box: A #GtkComboBox
* @index_: An index in the model passed during construction, or -1 to have
* no active item
*
* Sets the active item of @combo_box to be the item at @index.
*
* Since: 2.4
*/
void
gtk_combo_box_set_active (GtkComboBox *combo_box,
gint index_)
{
GtkTreePath *path = NULL;
g_return_if_fail (GTK_IS_COMBO_BOX (combo_box));
g_return_if_fail (index_ >= -1);
if (combo_box->priv->model == NULL)
{
/* Save index, in case the model is set after the index */
combo_box->priv->active = index_;
if (index_ != -1)
return;
}
if (index_ != -1)
path = gtk_tree_path_new_from_indices (index_, -1);
gtk_combo_box_set_active_internal (combo_box, path);
if (path)
gtk_tree_path_free (path);
}
static void
gtk_combo_box_set_active_internal (GtkComboBox *combo_box,
GtkTreePath *path)
{
GtkComboBoxPrivate *priv = combo_box->priv;
GtkTreePath *active_path;
gint path_cmp;
/* Remember whether the initially active row is valid. */
gboolean is_valid_row_reference = gtk_tree_row_reference_valid (priv->active_row);
if (path && is_valid_row_reference)
{
active_path = gtk_tree_row_reference_get_path (priv->active_row);
path_cmp = gtk_tree_path_compare (path, active_path);
gtk_tree_path_free (active_path);
if (path_cmp == 0)
return;
}
if (priv->active_row)
{
gtk_tree_row_reference_free (priv->active_row);
priv->active_row = NULL;
}
if (!path)
{
if (priv->tree_view)
gtk_tree_selection_unselect_all (gtk_tree_view_get_selection (GTK_TREE_VIEW (priv->tree_view)));
else
{
GtkMenu *menu = GTK_MENU (priv->popup_widget);
if (GTK_IS_MENU (menu))
gtk_menu_set_active (menu, -1);
}
if (priv->cell_view)
gtk_cell_view_set_displayed_row (GTK_CELL_VIEW (priv->cell_view), NULL);
/*
* Do not emit a "changed" signal when an already invalid selection was
* now set to invalid.
*/
if (!is_valid_row_reference)
return;
}
else
{
priv->active_row =
gtk_tree_row_reference_new (priv->model, path);
if (priv->tree_view)
{
gtk_tree_view_set_cursor (GTK_TREE_VIEW (priv->tree_view),
path, NULL, FALSE);
}
else if (GTK_IS_MENU (priv->popup_widget))
{
/* FIXME handle nested menus better */
gtk_menu_set_active (GTK_MENU (priv->popup_widget),
gtk_tree_path_get_indices (path)[0]);
}
if (priv->cell_view)
gtk_cell_view_set_displayed_row (GTK_CELL_VIEW (priv->cell_view),
path);
}
g_signal_emit (combo_box, combo_box_signals[CHANGED], 0);
g_object_notify (G_OBJECT (combo_box), "active");
}
/**
* gtk_combo_box_get_active_iter:
* @combo_box: A #GtkComboBox
* @iter: The uninitialized #GtkTreeIter
*
* Sets @iter to point to the current active item, if it exists.
*
* Return value: %TRUE, if @iter was set
*
* Since: 2.4
*/
gboolean
gtk_combo_box_get_active_iter (GtkComboBox *combo_box,
GtkTreeIter *iter)
{
GtkTreePath *path;
gboolean result;
g_return_val_if_fail (GTK_IS_COMBO_BOX (combo_box), FALSE);
if (!gtk_tree_row_reference_valid (combo_box->priv->active_row))
return FALSE;
path = gtk_tree_row_reference_get_path (combo_box->priv->active_row);
result = gtk_tree_model_get_iter (combo_box->priv->model, iter, path);
gtk_tree_path_free (path);
return result;
}
/**
* gtk_combo_box_set_active_iter:
* @combo_box: A #GtkComboBox
* @iter: (allow-none): The #GtkTreeIter, or %NULL
*
* Sets the current active item to be the one referenced by @iter, or
* unsets the active item if @iter is %NULL.
*
* @iter must correspond to a path of depth one, or be %NULL.
*
* Since: 2.4
*/
void
gtk_combo_box_set_active_iter (GtkComboBox *combo_box,
GtkTreeIter *iter)
{
GtkTreePath *path = NULL;
g_return_if_fail (GTK_IS_COMBO_BOX (combo_box));
if (iter)
path = gtk_tree_model_get_path (gtk_combo_box_get_model (combo_box), iter);
gtk_combo_box_set_active_internal (combo_box, path);
gtk_tree_path_free (path);
}
/**
* gtk_combo_box_set_model:
* @combo_box: A #GtkComboBox
* @model: (allow-none): A #GtkTreeModel
*
* Sets the model used by @combo_box to be @model. Will unset a previously set
* model (if applicable). If model is %NULL, then it will unset the model.
*
* Note that this function does not clear the cell renderers, you have to
* call gtk_cell_layout_clear() yourself if you need to set up different
* cell renderers for the new model.
*
* Since: 2.4
*/
void
gtk_combo_box_set_model (GtkComboBox *combo_box,
GtkTreeModel *model)
{
g_return_if_fail (GTK_IS_COMBO_BOX (combo_box));
g_return_if_fail (model == NULL || GTK_IS_TREE_MODEL (model));
if (model == combo_box->priv->model)
return;
gtk_combo_box_unset_model (combo_box);
if (model == NULL)
goto out;
combo_box->priv->model = model;
g_object_ref (combo_box->priv->model);
combo_box->priv->inserted_id =
g_signal_connect (combo_box->priv->model, "row-inserted",
G_CALLBACK (gtk_combo_box_model_row_inserted),
combo_box);
combo_box->priv->deleted_id =
g_signal_connect (combo_box->priv->model, "row-deleted",
G_CALLBACK (gtk_combo_box_model_row_deleted),
combo_box);
combo_box->priv->reordered_id =
g_signal_connect (combo_box->priv->model, "rows-reordered",
G_CALLBACK (gtk_combo_box_model_rows_reordered),
combo_box);
combo_box->priv->changed_id =
g_signal_connect (combo_box->priv->model, "row-changed",
G_CALLBACK (gtk_combo_box_model_row_changed),
combo_box);
if (combo_box->priv->tree_view)
{
/* list mode */
gtk_tree_view_set_model (GTK_TREE_VIEW (combo_box->priv->tree_view),
combo_box->priv->model);
gtk_combo_box_list_popup_resize (combo_box);
}
else
{
/* menu mode */
if (combo_box->priv->popup_widget)
gtk_combo_box_menu_fill (combo_box);
}
if (combo_box->priv->cell_view)
gtk_cell_view_set_model (GTK_CELL_VIEW (combo_box->priv->cell_view),
combo_box->priv->model);
if (combo_box->priv->active != -1)
{
/* If an index was set in advance, apply it now */
gtk_combo_box_set_active (combo_box, combo_box->priv->active);
combo_box->priv->active = -1;
}
out:
gtk_combo_box_update_sensitivity (combo_box);
g_object_notify (G_OBJECT (combo_box), "model");
}
/**
* gtk_combo_box_get_model
* @combo_box: A #GtkComboBox
*
* Returns the #GtkTreeModel which is acting as data source for @combo_box.
*
* Return value: (transfer none): A #GtkTreeModel which was passed during construction.
*
* Since: 2.4
*/
GtkTreeModel *
gtk_combo_box_get_model (GtkComboBox *combo_box)
{
g_return_val_if_fail (GTK_IS_COMBO_BOX (combo_box), NULL);
return combo_box->priv->model;
}
/* convenience API for simple text combos */
/**
* gtk_combo_box_new_text:
*
* Convenience function which constructs a new text combo box, which is a
* #GtkComboBox just displaying strings. If you use this function to create
* a text combo box, you should only manipulate its data source with the
* following convenience functions: gtk_combo_box_append_text(),
* gtk_combo_box_insert_text(), gtk_combo_box_prepend_text() and
* gtk_combo_box_remove_text().
*
* Return value: (transfer none): A new text combo box.
*
* Since: 2.4
*/
GtkWidget *
gtk_combo_box_new_text (void)
{
GtkWidget *combo_box;
GtkCellRenderer *cell;
GtkListStore *store;
store = gtk_list_store_new (1, G_TYPE_STRING);
combo_box = gtk_combo_box_new_with_model (GTK_TREE_MODEL (store));
g_object_unref (store);
cell = gtk_cell_renderer_text_new ();
gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (combo_box), cell, TRUE);
gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (combo_box), cell,
"text", 0,
NULL);
return combo_box;
}
/**
* gtk_combo_box_append_text:
* @combo_box: A #GtkComboBox constructed using gtk_combo_box_new_text()
* @text: A string
*
* Appends @string to the list of strings stored in @combo_box. Note that
* you can only use this function with combo boxes constructed with
* gtk_combo_box_new_text().
*
* Since: 2.4
*/
void
gtk_combo_box_append_text (GtkComboBox *combo_box,
const gchar *text)
{
GtkTreeIter iter;
GtkListStore *store;
g_return_if_fail (GTK_IS_COMBO_BOX (combo_box));
g_return_if_fail (GTK_IS_LIST_STORE (combo_box->priv->model));
g_return_if_fail (gtk_tree_model_get_column_type (combo_box->priv->model, 0)
== G_TYPE_STRING);
g_return_if_fail (text != NULL);
store = GTK_LIST_STORE (combo_box->priv->model);
gtk_list_store_append (store, &iter);
gtk_list_store_set (store, &iter, 0, text, -1);
}
/**
* gtk_combo_box_insert_text:
* @combo_box: A #GtkComboBox constructed using gtk_combo_box_new_text()
* @position: An index to insert @text
* @text: A string
*
* Inserts @string at @position in the list of strings stored in @combo_box.
* Note that you can only use this function with combo boxes constructed
* with gtk_combo_box_new_text().
*
* Since: 2.4
*/
void
gtk_combo_box_insert_text (GtkComboBox *combo_box,
gint position,
const gchar *text)
{
GtkTreeIter iter;
GtkListStore *store;
g_return_if_fail (GTK_IS_COMBO_BOX (combo_box));
g_return_if_fail (GTK_IS_LIST_STORE (combo_box->priv->model));
g_return_if_fail (position >= 0);
g_return_if_fail (gtk_tree_model_get_column_type (combo_box->priv->model, 0)
== G_TYPE_STRING);
g_return_if_fail (text != NULL);
store = GTK_LIST_STORE (combo_box->priv->model);
gtk_list_store_insert (store, &iter, position);
gtk_list_store_set (store, &iter, 0, text, -1);
}
/**
* gtk_combo_box_prepend_text:
* @combo_box: A #GtkComboBox constructed with gtk_combo_box_new_text()
* @text: A string
*
* Prepends @string to the list of strings stored in @combo_box. Note that
* you can only use this function with combo boxes constructed with
* gtk_combo_box_new_text().
*
* Since: 2.4
*/
void
gtk_combo_box_prepend_text (GtkComboBox *combo_box,
const gchar *text)
{
GtkTreeIter iter;
GtkListStore *store;
g_return_if_fail (GTK_IS_COMBO_BOX (combo_box));
g_return_if_fail (GTK_IS_LIST_STORE (combo_box->priv->model));
g_return_if_fail (gtk_tree_model_get_column_type (combo_box->priv->model, 0)
== G_TYPE_STRING);
g_return_if_fail (text != NULL);
store = GTK_LIST_STORE (combo_box->priv->model);
gtk_list_store_prepend (store, &iter);
gtk_list_store_set (store, &iter, 0, text, -1);
}
/**
* gtk_combo_box_remove_text:
* @combo_box: A #GtkComboBox constructed with gtk_combo_box_new_text()
* @position: Index of the item to remove
*
* Removes the string at @position from @combo_box. Note that you can only use
* this function with combo boxes constructed with gtk_combo_box_new_text().
*
* Since: 2.4
*/
void
gtk_combo_box_remove_text (GtkComboBox *combo_box,
gint position)
{
GtkTreeIter iter;
GtkListStore *store;
g_return_if_fail (GTK_IS_COMBO_BOX (combo_box));
g_return_if_fail (GTK_IS_LIST_STORE (combo_box->priv->model));
g_return_if_fail (gtk_tree_model_get_column_type (combo_box->priv->model, 0)
== G_TYPE_STRING);
g_return_if_fail (position >= 0);
store = GTK_LIST_STORE (combo_box->priv->model);
if (gtk_tree_model_iter_nth_child (combo_box->priv->model, &iter,
NULL, position))
gtk_list_store_remove (store, &iter);
}
/**
* gtk_combo_box_get_active_text:
* @combo_box: A #GtkComboBox constructed with gtk_combo_box_new_text()
*
* Returns the currently active string in @combo_box or %NULL if none
* is selected. Note that you can only use this function with combo
* boxes constructed with gtk_combo_box_new_text() and with
* #GtkComboBoxEntry<!-- -->s.
*
* Returns: a newly allocated string containing the currently active text.
* Must be freed with g_free().
*
* Since: 2.6
*/
gchar *
gtk_combo_box_get_active_text (GtkComboBox *combo_box)
{
GtkComboBoxClass *class;
g_return_val_if_fail (GTK_IS_COMBO_BOX (combo_box), NULL);
class = GTK_COMBO_BOX_GET_CLASS (combo_box);
if (class->get_active_text)
return class->get_active_text (combo_box);
return NULL;
}
static gchar *
gtk_combo_box_real_get_active_text (GtkComboBox *combo_box)
{
GtkTreeIter iter;
gchar *text = NULL;
g_return_val_if_fail (GTK_IS_LIST_STORE (combo_box->priv->model), NULL);
g_return_val_if_fail (gtk_tree_model_get_column_type (combo_box->priv->model, 0)
== G_TYPE_STRING, NULL);
if (gtk_combo_box_get_active_iter (combo_box, &iter))
gtk_tree_model_get (combo_box->priv->model, &iter,
0, &text, -1);
return text;
}
static void
gtk_combo_box_real_move_active (GtkComboBox *combo_box,
GtkScrollType scroll)
{
GtkTreeIter iter;
GtkTreeIter new_iter;
gboolean active_iter;
gboolean found;
if (!combo_box->priv->model)
{
gtk_widget_error_bell (GTK_WIDGET (combo_box));
return;
}
active_iter = gtk_combo_box_get_active_iter (combo_box, &iter);
switch (scroll)
{
case GTK_SCROLL_STEP_BACKWARD:
case GTK_SCROLL_STEP_UP:
case GTK_SCROLL_STEP_LEFT:
if (active_iter)
{
found = tree_prev (combo_box, combo_box->priv->model,
&iter, &new_iter, FALSE);
break;
}
/* else fall through */
case GTK_SCROLL_PAGE_FORWARD:
case GTK_SCROLL_PAGE_DOWN:
case GTK_SCROLL_PAGE_RIGHT:
case GTK_SCROLL_END:
found = tree_last (combo_box, combo_box->priv->model, &new_iter, FALSE);
break;
case GTK_SCROLL_STEP_FORWARD:
case GTK_SCROLL_STEP_DOWN:
case GTK_SCROLL_STEP_RIGHT:
if (active_iter)
{
found = tree_next (combo_box, combo_box->priv->model,
&iter, &new_iter, FALSE);
break;
}
/* else fall through */
case GTK_SCROLL_PAGE_BACKWARD:
case GTK_SCROLL_PAGE_UP:
case GTK_SCROLL_PAGE_LEFT:
case GTK_SCROLL_START:
found = tree_first (combo_box, combo_box->priv->model, &new_iter, FALSE);
break;
default:
return;
}
if (found && active_iter)
{
GtkTreePath *old_path;
GtkTreePath *new_path;
old_path = gtk_tree_model_get_path (combo_box->priv->model, &iter);
new_path = gtk_tree_model_get_path (combo_box->priv->model, &new_iter);
if (gtk_tree_path_compare (old_path, new_path) == 0)
found = FALSE;
gtk_tree_path_free (old_path);
gtk_tree_path_free (new_path);
}
if (found)
{
gtk_combo_box_set_active_iter (combo_box, &new_iter);
}
else
{
gtk_widget_error_bell (GTK_WIDGET (combo_box));
}
}
static gboolean
gtk_combo_box_mnemonic_activate (GtkWidget *widget,
gboolean group_cycling)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (widget);
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);
gtk_widget_grab_focus (combo_box->priv->button);
}
static void
gtk_combo_box_destroy (GtkObject *object)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (object);
if (combo_box->priv->popup_idle_id > 0)
{
g_source_remove (combo_box->priv->popup_idle_id);
combo_box->priv->popup_idle_id = 0;
}
gtk_combo_box_popdown (combo_box);
if (combo_box->priv->row_separator_destroy)
combo_box->priv->row_separator_destroy (combo_box->priv->row_separator_data);
combo_box->priv->row_separator_func = NULL;
combo_box->priv->row_separator_data = NULL;
combo_box->priv->row_separator_destroy = NULL;
GTK_OBJECT_CLASS (gtk_combo_box_parent_class)->destroy (object);
combo_box->priv->cell_view = NULL;
}
static void
gtk_combo_box_dispose(GObject* object)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (object);
if (GTK_IS_MENU (combo_box->priv->popup_widget))
{
gtk_combo_box_menu_destroy (combo_box);
gtk_menu_detach (GTK_MENU (combo_box->priv->popup_widget));
combo_box->priv->popup_widget = NULL;
}
G_OBJECT_CLASS (gtk_combo_box_parent_class)->dispose (object);
}
static void
gtk_combo_box_finalize (GObject *object)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (object);
GSList *i;
if (GTK_IS_TREE_VIEW (combo_box->priv->tree_view))
gtk_combo_box_list_destroy (combo_box);
if (combo_box->priv->popup_window)
gtk_widget_destroy (combo_box->priv->popup_window);
gtk_combo_box_unset_model (combo_box);
for (i = combo_box->priv->cells; i; i = i->next)
{
ComboCellInfo *info = (ComboCellInfo *)i->data;
GSList *list = info->attributes;
if (info->destroy)
info->destroy (info->func_data);
while (list && list->next)
{
g_free (list->data);
list = list->next->next;
}
g_slist_free (info->attributes);
g_object_unref (info->cell);
g_slice_free (ComboCellInfo, info);
}
g_slist_free (combo_box->priv->cells);
g_free (combo_box->priv->tearoff_title);
G_OBJECT_CLASS (gtk_combo_box_parent_class)->finalize (object);
}
static gboolean
gtk_cell_editable_key_press (GtkWidget *widget,
GdkEventKey *event,
gpointer data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (data);
if (event->keyval == GDK_Escape)
{
g_object_set (combo_box,
"editing-canceled", TRUE,
NULL);
gtk_cell_editable_editing_done (GTK_CELL_EDITABLE (combo_box));
gtk_cell_editable_remove_widget (GTK_CELL_EDITABLE (combo_box));
return TRUE;
}
else if (event->keyval == GDK_Return ||
event->keyval == GDK_ISO_Enter ||
event->keyval == GDK_KP_Enter)
{
gtk_cell_editable_editing_done (GTK_CELL_EDITABLE (combo_box));
gtk_cell_editable_remove_widget (GTK_CELL_EDITABLE (combo_box));
return TRUE;
}
return FALSE;
}
static gboolean
popdown_idle (gpointer data)
{
GtkComboBox *combo_box;
combo_box = GTK_COMBO_BOX (data);
gtk_cell_editable_editing_done (GTK_CELL_EDITABLE (combo_box));
gtk_cell_editable_remove_widget (GTK_CELL_EDITABLE (combo_box));
g_object_unref (combo_box);
return FALSE;
}
static void
popdown_handler (GtkWidget *widget,
gpointer data)
{
gdk_threads_add_idle (popdown_idle, g_object_ref (data));
}
static gboolean
popup_idle (gpointer data)
{
GtkComboBox *combo_box;
combo_box = GTK_COMBO_BOX (data);
if (GTK_IS_MENU (combo_box->priv->popup_widget) &&
combo_box->priv->cell_view)
g_signal_connect_object (combo_box->priv->popup_widget,
"unmap", G_CALLBACK (popdown_handler),
combo_box, 0);
/* we unset this if a menu item is activated */
g_object_set (combo_box,
"editing-canceled", TRUE,
NULL);
gtk_combo_box_popup (combo_box);
combo_box->priv->popup_idle_id = 0;
combo_box->priv->activate_button = 0;
combo_box->priv->activate_time = 0;
return FALSE;
}
static void
gtk_combo_box_start_editing (GtkCellEditable *cell_editable,
GdkEvent *event)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (cell_editable);
combo_box->priv->is_cell_renderer = TRUE;
if (combo_box->priv->cell_view)
{
g_signal_connect_object (combo_box->priv->button, "key-press-event",
G_CALLBACK (gtk_cell_editable_key_press),
cell_editable, 0);
gtk_widget_grab_focus (combo_box->priv->button);
}
else
{
g_signal_connect_object (GTK_BIN (combo_box)->child, "key-press-event",
G_CALLBACK (gtk_cell_editable_key_press),
cell_editable, 0);
gtk_widget_grab_focus (GTK_WIDGET (GTK_BIN (combo_box)->child));
gtk_widget_set_can_focus (combo_box->priv->button, FALSE);
}
/* we do the immediate popup only for the optionmenu-like
* appearance
*/
if (combo_box->priv->is_cell_renderer &&
combo_box->priv->cell_view && !combo_box->priv->tree_view)
{
if (event && event->type == GDK_BUTTON_PRESS)
{
GdkEventButton *event_button = (GdkEventButton *)event;
combo_box->priv->activate_button = event_button->button;
combo_box->priv->activate_time = event_button->time;
}
combo_box->priv->popup_idle_id =
gdk_threads_add_idle (popup_idle, combo_box);
}
}
/**
* gtk_combo_box_get_add_tearoffs:
* @combo_box: a #GtkComboBox
*
* Gets the current value of the :add-tearoffs property.
*
* Return value: the current value of the :add-tearoffs property.
*/
gboolean
gtk_combo_box_get_add_tearoffs (GtkComboBox *combo_box)
{
g_return_val_if_fail (GTK_IS_COMBO_BOX (combo_box), FALSE);
return combo_box->priv->add_tearoffs;
}
/**
* gtk_combo_box_set_add_tearoffs:
* @combo_box: a #GtkComboBox
* @add_tearoffs: %TRUE to add tearoff menu items
*
* Sets whether the popup menu should have a tearoff
* menu item.
*
* Since: 2.6
*/
void
gtk_combo_box_set_add_tearoffs (GtkComboBox *combo_box,
gboolean add_tearoffs)
{
g_return_if_fail (GTK_IS_COMBO_BOX (combo_box));
add_tearoffs = add_tearoffs != FALSE;
if (combo_box->priv->add_tearoffs != add_tearoffs)
{
combo_box->priv->add_tearoffs = add_tearoffs;
gtk_combo_box_check_appearance (combo_box);
gtk_combo_box_relayout (combo_box);
g_object_notify (G_OBJECT (combo_box), "add-tearoffs");
}
}
/**
* gtk_combo_box_get_title:
* @combo_box: a #GtkComboBox
*
* Gets the current title of the menu in tearoff mode. See
* gtk_combo_box_set_add_tearoffs().
*
* Returns: the menu's title in tearoff mode. This is an internal copy of the
* string which must not be freed.
*
* Since: 2.10
*/
G_CONST_RETURN gchar*
gtk_combo_box_get_title (GtkComboBox *combo_box)
{
g_return_val_if_fail (GTK_IS_COMBO_BOX (combo_box), NULL);
return combo_box->priv->tearoff_title;
}
static void
gtk_combo_box_update_title (GtkComboBox *combo_box)
{
gtk_combo_box_check_appearance (combo_box);
if (combo_box->priv->popup_widget &&
GTK_IS_MENU (combo_box->priv->popup_widget))
gtk_menu_set_title (GTK_MENU (combo_box->priv->popup_widget),
combo_box->priv->tearoff_title);
}
/**
* gtk_combo_box_set_title:
* @combo_box: a #GtkComboBox
* @title: a title for the menu in tearoff mode
*
* Sets the menu's title in tearoff mode.
*
* Since: 2.10
*/
void
gtk_combo_box_set_title (GtkComboBox *combo_box,
const gchar *title)
{
GtkComboBoxPrivate *priv;
g_return_if_fail (GTK_IS_COMBO_BOX (combo_box));
priv = combo_box->priv;
if (strcmp (title ? title : "",
priv->tearoff_title ? priv->tearoff_title : "") != 0)
{
g_free (priv->tearoff_title);
priv->tearoff_title = g_strdup (title);
gtk_combo_box_update_title (combo_box);
g_object_notify (G_OBJECT (combo_box), "tearoff-title");
}
}
/**
* gtk_combo_box_get_popup_accessible:
* @combo_box: a #GtkComboBox
*
* Gets the accessible object corresponding to the combo box's popup.
*
* This function is mostly intended for use by accessibility technologies;
* applications should have little use for it.
*
* Returns: the accessible object corresponding to the combo box's popup.
*
* Since: 2.6
*/
AtkObject*
gtk_combo_box_get_popup_accessible (GtkComboBox *combo_box)
{
AtkObject *atk_obj;
g_return_val_if_fail (GTK_IS_COMBO_BOX (combo_box), NULL);
if (combo_box->priv->popup_widget)
{
atk_obj = gtk_widget_get_accessible (combo_box->priv->popup_widget);
return atk_obj;
}
return NULL;
}
/**
* gtk_combo_box_get_row_separator_func:
* @combo_box: a #GtkComboBox
*
* Returns the current row separator function.
*
* Return value: the current row separator function.
*
* Since: 2.6
*/
GtkTreeViewRowSeparatorFunc
gtk_combo_box_get_row_separator_func (GtkComboBox *combo_box)
{
g_return_val_if_fail (GTK_IS_COMBO_BOX (combo_box), NULL);
return combo_box->priv->row_separator_func;
}
/**
* gtk_combo_box_set_row_separator_func:
* @combo_box: a #GtkComboBox
* @func: a #GtkTreeViewRowSeparatorFunc
* @data: (allow-none): user data to pass to @func, or %NULL
* @destroy: (allow-none): destroy notifier for @data, or %NULL
*
* Sets the row separator function, which is used to determine
* whether a row should be drawn as a separator. If the row separator
* function is %NULL, no separators are drawn. This is the default value.
*
* Since: 2.6
*/
void
gtk_combo_box_set_row_separator_func (GtkComboBox *combo_box,
GtkTreeViewRowSeparatorFunc func,
gpointer data,
GDestroyNotify destroy)
{
g_return_if_fail (GTK_IS_COMBO_BOX (combo_box));
if (combo_box->priv->row_separator_destroy)
combo_box->priv->row_separator_destroy (combo_box->priv->row_separator_data);
combo_box->priv->row_separator_func = func;
combo_box->priv->row_separator_data = data;
combo_box->priv->row_separator_destroy = destroy;
if (combo_box->priv->tree_view)
gtk_tree_view_set_row_separator_func (GTK_TREE_VIEW (combo_box->priv->tree_view),
func, data, NULL);
gtk_combo_box_relayout (combo_box);
gtk_widget_queue_draw (GTK_WIDGET (combo_box));
}
/**
* gtk_combo_box_set_button_sensitivity:
* @combo_box: a #GtkComboBox
* @sensitivity: specify the sensitivity of the dropdown button
*
* Sets whether the dropdown button of the combo box should be
* always sensitive (%GTK_SENSITIVITY_ON), never sensitive (%GTK_SENSITIVITY_OFF)
* or only if there is at least one item to display (%GTK_SENSITIVITY_AUTO).
*
* Since: 2.14
**/
void
gtk_combo_box_set_button_sensitivity (GtkComboBox *combo_box,
GtkSensitivityType sensitivity)
{
g_return_if_fail (GTK_IS_COMBO_BOX (combo_box));
if (combo_box->priv->button_sensitivity != sensitivity)
{
combo_box->priv->button_sensitivity = sensitivity;
gtk_combo_box_update_sensitivity (combo_box);
g_object_notify (G_OBJECT (combo_box), "button-sensitivity");
}
}
/**
* gtk_combo_box_get_button_sensitivity:
* @combo_box: a #GtkComboBox
*
* Returns whether the combo box sets the dropdown button
* sensitive or not when there are no items in the model.
*
* Return Value: %GTK_SENSITIVITY_ON if the dropdown button
* is sensitive when the model is empty, %GTK_SENSITIVITY_OFF
* if the button is always insensitive or
* %GTK_SENSITIVITY_AUTO if it is only sensitive as long as
* the model has one item to be selected.
*
* Since: 2.14
**/
GtkSensitivityType
gtk_combo_box_get_button_sensitivity (GtkComboBox *combo_box)
{
g_return_val_if_fail (GTK_IS_COMBO_BOX (combo_box), FALSE);
return combo_box->priv->button_sensitivity;
}
/**
* gtk_combo_box_set_focus_on_click:
* @combo: a #GtkComboBox
* @focus_on_click: whether the combo box grabs focus when clicked
* with the mouse
*
* Sets whether the combo box will grab focus when it is clicked with
* the mouse. Making mouse clicks not grab focus is useful in places
* like toolbars where you don't want the keyboard focus removed from
* the main area of the application.
*
* Since: 2.6
*/
void
gtk_combo_box_set_focus_on_click (GtkComboBox *combo_box,
gboolean focus_on_click)
{
g_return_if_fail (GTK_IS_COMBO_BOX (combo_box));
focus_on_click = focus_on_click != FALSE;
if (combo_box->priv->focus_on_click != focus_on_click)
{
combo_box->priv->focus_on_click = focus_on_click;
if (combo_box->priv->button)
gtk_button_set_focus_on_click (GTK_BUTTON (combo_box->priv->button),
focus_on_click);
g_object_notify (G_OBJECT (combo_box), "focus-on-click");
}
}
/**
* gtk_combo_box_get_focus_on_click:
* @combo: a #GtkComboBox
*
* Returns whether the combo box grabs focus when it is clicked
* with the mouse. See gtk_combo_box_set_focus_on_click().
*
* Return value: %TRUE if the combo box grabs focus when it is
* clicked with the mouse.
*
* Since: 2.6
*/
gboolean
gtk_combo_box_get_focus_on_click (GtkComboBox *combo_box)
{
g_return_val_if_fail (GTK_IS_COMBO_BOX (combo_box), FALSE);
return combo_box->priv->focus_on_click;
}
static gboolean
gtk_combo_box_buildable_custom_tag_start (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *tagname,
GMarkupParser *parser,
gpointer *data)
{
if (parent_buildable_iface->custom_tag_start (buildable, builder, child,
tagname, parser, data))
return TRUE;
return _gtk_cell_layout_buildable_custom_tag_start (buildable, builder, child,
tagname, parser, data);
}
static void
gtk_combo_box_buildable_custom_tag_end (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *tagname,
gpointer *data)
{
if (strcmp (tagname, "attributes") == 0)
_gtk_cell_layout_buildable_custom_tag_end (buildable, builder, child, tagname,
data);
else
parent_buildable_iface->custom_tag_end (buildable, builder, child, tagname,
data);
}
static void
gtk_combo_box_extended_layout_init (GtkExtendedLayoutIface *iface)
{
iface->get_desired_size = gtk_combo_box_get_desired_size;
}
static void
gtk_combo_box_remeasure (GtkComboBox *combo_box)
{
GtkComboBoxPrivate *priv = combo_box->priv;
GtkTreeIter iter;
GtkTreePath *path;
if (!priv->model ||
!gtk_tree_model_get_iter_first (priv->model, &iter))
return;
memset (&priv->minimum_size, 0x0, sizeof (GtkRequisition));
memset (&priv->natural_size, 0x0, sizeof (GtkRequisition));
path = gtk_tree_path_new_from_indices (0, -1);
do
{
GtkRequisition req, nat_req;
if (priv->cell_view)
gtk_cell_view_get_desired_size_of_row (GTK_CELL_VIEW (priv->cell_view),
path, &req, &nat_req);
else
{
memset (&req, 0x0, sizeof (GtkRequisition));
memset (&nat_req, 0x0, sizeof (GtkRequisition));
}
priv->minimum_size.width = MAX (priv->minimum_size.width, req.width);
priv->minimum_size.height = MAX (priv->minimum_size.height, req.height);
priv->natural_size.width = MAX (priv->natural_size.width, nat_req.width);
priv->natural_size.height = MAX (priv->natural_size.height, nat_req.height);
gtk_tree_path_next (path);
}
while (gtk_tree_model_iter_next (priv->model, &iter));
gtk_tree_path_free (path);
}
static void
gtk_combo_box_get_desired_size (GtkExtendedLayout *layout,
GtkRequisition *minimum_size,
GtkRequisition *natural_size)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (layout);
GtkComboBoxPrivate *priv = combo_box->priv;
gint focus_width, focus_pad;
gint font_size, arrow_size;
GtkRequisition bin_req, bin_nat_req;
PangoContext *context;
PangoFontMetrics *metrics;
PangoFontDescription *font_desc;
GtkWidget *child;
child = gtk_bin_get_child (GTK_BIN (layout));
/* common */
gtk_extended_layout_get_desired_size (GTK_EXTENDED_LAYOUT (child), &bin_req, &bin_nat_req);
gtk_combo_box_remeasure (combo_box);
bin_req.width = MAX (bin_req.width, priv->minimum_size.width);
bin_req.height = MAX (bin_req.height, priv->minimum_size.height);
bin_nat_req.width = MAX (bin_nat_req.width, priv->natural_size.width);
bin_nat_req.height = MAX (bin_nat_req.height, priv->natural_size.height);
gtk_widget_style_get (GTK_WIDGET (layout),
"focus-line-width", &focus_width,
"focus-padding", &focus_pad,
"arrow-size", &arrow_size,
NULL);
font_desc = child->style->font_desc;
context = gtk_widget_get_pango_context (GTK_WIDGET (layout));
metrics = pango_context_get_metrics (context, font_desc,
pango_context_get_language (context));
font_size = PANGO_PIXELS (pango_font_metrics_get_ascent (metrics) +
pango_font_metrics_get_descent (metrics));
pango_font_metrics_unref (metrics);
arrow_size = MAX (arrow_size, font_size);
gtk_widget_set_size_request (priv->arrow, arrow_size, arrow_size);
if (!priv->tree_view)
{
/* menu mode */
if (priv->cell_view)
{
GtkRequisition button_req, sep_req, arrow_req;
gint border_width, xthickness, ythickness, xpad, ypad;
gtk_widget_size_request (priv->button, &button_req);
border_width = GTK_CONTAINER (combo_box)->border_width;
xthickness = priv->button->style->xthickness;
ythickness = priv->button->style->ythickness;
xpad = 2*(border_width + xthickness + focus_width + focus_pad);
ypad = 2*(border_width + ythickness + focus_width + focus_pad);
gtk_widget_size_request (priv->separator, &sep_req);
gtk_widget_size_request (priv->arrow, &arrow_req);
minimum_size->width = bin_req.width + sep_req.width + arrow_req.width;
minimum_size->height = MAX (sep_req.height, arrow_req.height);
minimum_size->height = MAX (minimum_size->height, bin_req.height);
natural_size->width = bin_nat_req.width + sep_req.width + arrow_req.width;
natural_size->height = MAX (minimum_size->height, bin_nat_req.height);
minimum_size->width += xpad;
minimum_size->height += ypad;
natural_size->width += xpad;
natural_size->height += ypad;
}
else
{
GtkRequisition but_req, but_nat_req;
gtk_extended_layout_get_desired_size (GTK_EXTENDED_LAYOUT (priv->button),
&but_req, &but_nat_req);
minimum_size->width = bin_req.width + but_req.width;
minimum_size->height = MAX (bin_req.height, but_req.height);
natural_size->width = bin_nat_req.width + but_nat_req.width;
natural_size->height = MAX (bin_nat_req.height, but_nat_req.height);
}
}
else
{
/* list mode */
GtkRequisition button_req, button_nat_req, frame_req;
/* sample + frame */
*minimum_size = bin_req;
*natural_size = bin_nat_req;
minimum_size->width += 2 * focus_width;
natural_size->width += 2 * focus_width;
if (priv->cell_view_frame)
{
gtk_widget_size_request (priv->cell_view_frame, &frame_req);
if (priv->has_frame)
{
gint xpad = 2 * (GTK_CONTAINER (priv->cell_view_frame)->border_width +
GTK_WIDGET (priv->cell_view_frame)->style->xthickness);
gint ypad = 2 * (GTK_CONTAINER (priv->cell_view_frame)->border_width +
GTK_WIDGET (priv->cell_view_frame)->style->ythickness);
minimum_size->width += xpad;
minimum_size->height += ypad;
natural_size->width += xpad;
natural_size->height += ypad;
}
}
/* the button */
gtk_extended_layout_get_desired_size (GTK_EXTENDED_LAYOUT (priv->button),
&button_req, &button_nat_req);
minimum_size->width += button_req.width;
minimum_size->height = MAX (minimum_size->height, button_req.height);
natural_size->width += button_nat_req.width;
natural_size->height = MAX (natural_size->height, button_nat_req.height);
}
if (GTK_SHADOW_NONE != priv->shadow_type)
{
minimum_size->width += 2 * GTK_WIDGET (layout)->style->xthickness;
minimum_size->height += 2 * GTK_WIDGET (layout)->style->ythickness;
natural_size->width += 2 * GTK_WIDGET (layout)->style->xthickness;
natural_size->height += 2 * GTK_WIDGET (layout)->style->ythickness;
}
}
#define __GTK_COMBO_BOX_C__
#include "gtkaliasdef.c"
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