/* gtkcombobox.c * Copyright (C) 2002, 2003 Kristian Rietveld * * 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 "gtkcellareabox.h" #include "gtktreemenu.h" #include "gtkarrow.h" #include "gtkbindings.h" #include "gtkcelllayout.h" #include "gtkcellrenderertext.h" #include "gtkcellview.h" #include "gtkeventbox.h" #include "gtkframe.h" #include "gtkhbox.h" #include "gtkliststore.h" #include "gtkmain.h" #include "gtkmenuprivate.h" #include "gtkmenushellprivate.h" #include "gtkscrolledwindow.h" #include "gtkseparatormenuitem.h" #include "gtktearoffmenuitem.h" #include "gtktogglebutton.h" #include "gtktreeselection.h" #include "gtkvseparator.h" #include "gtkwindow.h" #include "gtktypebuiltins.h" #include "gtkprivate.h" #include #include #include #include "gtkmarshalers.h" #include "gtkintl.h" #include "gtkentryprivate.h" #include "gtktreeprivate.h" /** * SECTION:gtkcombobox * @Short_description: A widget used to choose from a list of items * @Title: GtkComboBox * @See_also: #GtkComboBoxText, #GtkTreeModel, #GtkCellRenderer * * A GtkComboBox is a widget that allows the user to choose from a list of * valid choices. The GtkComboBox displays the selected choice. When * activated, the GtkComboBox displays a popup which allows the user to * make a new choice. The style in which the selected value is displayed, * and the style of the popup is determined by the current theme. It may * be similar to a Windows-style combo box. * * The GtkComboBox uses the model-view pattern; the list of valid choices * is specified in the form of a tree model, and the display of the choices * can be adapted to the data in the model by using cell renderers, as you * would in a tree view. This is possible since GtkComboBox implements the * #GtkCellLayout interface. The tree model holding the valid choices is * not restricted to a flat list, it can be a real tree, and the popup will * reflect the tree structure. * * To allow the user to enter values not in the model, the 'has-entry' * property allows the GtkComboBox to contain a #GtkEntry. This entry * can be accessed by calling gtk_bin_get_child() on the combo box. * * For a simple list of textual choices, the model-view API of GtkComboBox * can be a bit overwhelming. In this case, #GtkComboBoxText offers a * simple alternative. Both GtkComboBox and #GtkComboBoxText can contain * an entry. */ /* WELCOME, to THE house of evil code */ struct _GtkComboBoxPrivate { GtkTreeModel *model; GtkCellArea *area; gint col_column; gint row_column; gint wrap_width; GtkShadowType shadow_type; gint active; /* Only temporary */ GtkTreeRowReference *active_row; GtkWidget *tree_view; GtkWidget *cell_view; GtkWidget *cell_view_frame; GtkWidget *button; GtkWidget *box; GtkWidget *arrow; GtkWidget *separator; GtkWidget *popup_widget; GtkWidget *popup_window; GtkWidget *scrolled_window; gulong inserted_id; gulong deleted_id; gulong reordered_id; gulong changed_id; guint popup_idle_id; guint activate_button; guint32 activate_time; guint scroll_timer; guint resize_idle_id; /* For "has-entry" specific behavior we track * an automated cell renderer and text column */ gint text_column; GtkCellRenderer *text_renderer; gint id_column; guint popup_in_progress : 1; guint popup_shown : 1; guint add_tearoffs : 1; guint has_frame : 1; guint is_cell_renderer : 1; guint editing_canceled : 1; guint auto_scroll : 1; guint focus_on_click : 1; guint button_sensitivity : 2; guint has_entry : 1; guint popup_fixed_width : 1; GtkTreeViewRowSeparatorFunc row_separator_func; gpointer row_separator_data; GDestroyNotify row_separator_destroy; GdkDevice *grab_pointer; GdkDevice *grab_keyboard; gchar *tearoff_title; }; /* While debugging this evil code, I have learned that * there are actually 4 modes to this widget, which can * be characterized as follows * * 1) menu mode, no child added * * tree_view -> NULL * cell_view -> GtkCellView, regular child * cell_view_frame -> NULL * button -> GtkToggleButton set_parent to combo * arrow -> GtkArrow set_parent to button * separator -> GtkVSepator set_parent to button * popup_widget -> GtkMenu * popup_window -> NULL * scrolled_window -> NULL * * 2) menu mode, child added * * tree_view -> NULL * cell_view -> NULL * cell_view_frame -> NULL * button -> GtkToggleButton set_parent to combo * arrow -> GtkArrow, child of button * separator -> NULL * popup_widget -> GtkMenu * popup_window -> NULL * scrolled_window -> NULL * * 3) list mode, no child added * * tree_view -> GtkTreeView, child of scrolled_window * cell_view -> GtkCellView, regular child * cell_view_frame -> GtkFrame, set parent to combo * button -> GtkToggleButton, set_parent to combo * arrow -> GtkArrow, child of button * separator -> NULL * popup_widget -> tree_view * popup_window -> GtkWindow * scrolled_window -> GtkScrolledWindow, child of popup_window * * 4) list mode, child added * * tree_view -> GtkTreeView, child of scrolled_window * cell_view -> NULL * cell_view_frame -> NULL * button -> GtkToggleButton, set_parent to combo * arrow -> GtkArrow, child of button * separator -> NULL * popup_widget -> tree_view * popup_window -> GtkWindow * scrolled_window -> GtkScrolledWindow, child of popup_window * */ enum { CHANGED, MOVE_ACTIVE, POPUP, POPDOWN, LAST_SIGNAL }; enum { PROP_0, PROP_MODEL, PROP_WRAP_WIDTH, PROP_ROW_SPAN_COLUMN, PROP_COLUMN_SPAN_COLUMN, PROP_ACTIVE, PROP_ADD_TEAROFFS, PROP_TEAROFF_TITLE, PROP_HAS_FRAME, PROP_FOCUS_ON_CLICK, PROP_POPUP_SHOWN, PROP_BUTTON_SENSITIVITY, PROP_EDITING_CANCELED, PROP_HAS_ENTRY, PROP_ENTRY_TEXT_COLUMN, PROP_POPUP_FIXED_WIDTH, PROP_ID_COLUMN, PROP_ACTIVE_ID, PROP_CELL_AREA }; static guint combo_box_signals[LAST_SIGNAL] = {0,}; #define BONUS_PADDING 4 #define SCROLL_TIME 100 /* common */ static void gtk_combo_box_cell_layout_init (GtkCellLayoutIface *iface); static void gtk_combo_box_cell_editable_init (GtkCellEditableIface *iface); static GObject *gtk_combo_box_constructor (GType type, guint n_construct_properties, GObjectConstructParam *construct_properties); static void gtk_combo_box_dispose (GObject *object); static void gtk_combo_box_finalize (GObject *object); static void gtk_combo_box_destroy (GtkWidget *widget); static void gtk_combo_box_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *spec); static void gtk_combo_box_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *spec); static void gtk_combo_box_state_flags_changed (GtkWidget *widget, GtkStateFlags previous); static void gtk_combo_box_grab_focus (GtkWidget *widget); static void gtk_combo_box_style_updated (GtkWidget *widget); static void gtk_combo_box_button_toggled (GtkWidget *widget, gpointer data); static void gtk_combo_box_button_state_flags_changed (GtkWidget *widget, GtkStateFlags previous, gpointer data); static void gtk_combo_box_add (GtkContainer *container, GtkWidget *widget); static void gtk_combo_box_remove (GtkContainer *container, GtkWidget *widget); static void gtk_combo_box_menu_show (GtkWidget *menu, gpointer user_data); static void gtk_combo_box_menu_hide (GtkWidget *menu, gpointer user_data); static void gtk_combo_box_set_popup_widget (GtkComboBox *combo_box, GtkWidget *popup); static void gtk_combo_box_menu_position_below (GtkMenu *menu, gint *x, gint *y, gint *push_in, gpointer user_data); static void gtk_combo_box_menu_position_over (GtkMenu *menu, gint *x, gint *y, gint *push_in, gpointer user_data); static void gtk_combo_box_menu_position (GtkMenu *menu, gint *x, gint *y, gint *push_in, gpointer user_data); static void gtk_combo_box_unset_model (GtkComboBox *combo_box); static void gtk_combo_box_size_allocate (GtkWidget *widget, GtkAllocation *allocation); static void gtk_combo_box_forall (GtkContainer *container, gboolean include_internals, GtkCallback callback, gpointer callback_data); static gboolean gtk_combo_box_draw (GtkWidget *widget, cairo_t *cr); static gboolean gtk_combo_box_scroll_event (GtkWidget *widget, GdkEventScroll *event); static void gtk_combo_box_set_active_internal (GtkComboBox *combo_box, GtkTreePath *path); static void gtk_combo_box_check_appearance (GtkComboBox *combo_box); static void gtk_combo_box_real_move_active (GtkComboBox *combo_box, GtkScrollType scroll); static void gtk_combo_box_real_popup (GtkComboBox *combo_box); static gboolean gtk_combo_box_real_popdown (GtkComboBox *combo_box); /* listening to the model */ static void gtk_combo_box_model_row_inserted (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer user_data); static void gtk_combo_box_model_row_deleted (GtkTreeModel *model, GtkTreePath *path, gpointer user_data); static void gtk_combo_box_model_rows_reordered (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gint *new_order, gpointer user_data); static void gtk_combo_box_model_row_changed (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data); static void gtk_combo_box_model_row_expanded (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data); /* list */ static void gtk_combo_box_list_position (GtkComboBox *combo_box, gint *x, gint *y, gint *width, gint *height); static void gtk_combo_box_list_setup (GtkComboBox *combo_box); static void gtk_combo_box_list_destroy (GtkComboBox *combo_box); static gboolean gtk_combo_box_list_button_released (GtkWidget *widget, GdkEventButton *event, gpointer data); static gboolean gtk_combo_box_list_key_press (GtkWidget *widget, GdkEventKey *event, gpointer data); static gboolean gtk_combo_box_list_enter_notify (GtkWidget *widget, GdkEventCrossing *event, gpointer data); static void gtk_combo_box_list_auto_scroll (GtkComboBox *combo, gint x, gint y); static gboolean gtk_combo_box_list_scroll_timeout (GtkComboBox *combo); static gboolean gtk_combo_box_list_button_pressed (GtkWidget *widget, GdkEventButton *event, gpointer data); static gboolean gtk_combo_box_list_select_func (GtkTreeSelection *selection, GtkTreeModel *model, GtkTreePath *path, gboolean path_currently_selected, gpointer data); static void gtk_combo_box_list_row_changed (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data); static void gtk_combo_box_list_popup_resize (GtkComboBox *combo_box); /* menu */ static void gtk_combo_box_menu_setup (GtkComboBox *combo_box, gboolean add_children); static void gtk_combo_box_update_title (GtkComboBox *combo_box); static void gtk_combo_box_menu_destroy (GtkComboBox *combo_box); static gboolean gtk_combo_box_menu_button_press (GtkWidget *widget, GdkEventButton *event, gpointer user_data); static void gtk_combo_box_menu_activate (GtkWidget *menu, const gchar *path, GtkComboBox *combo_box); static void gtk_combo_box_update_sensitivity (GtkComboBox *combo_box); static gboolean gtk_combo_box_menu_key_press (GtkWidget *widget, GdkEventKey *event, gpointer data); static void gtk_combo_box_menu_popup (GtkComboBox *combo_box, guint button, guint32 activate_time); /* cell layout */ static GtkCellArea *gtk_combo_box_cell_layout_get_area (GtkCellLayout *cell_layout); static gboolean gtk_combo_box_mnemonic_activate (GtkWidget *widget, gboolean group_cycling); static void gtk_combo_box_child_show (GtkWidget *widget, GtkComboBox *combo_box); static void gtk_combo_box_child_hide (GtkWidget *widget, GtkComboBox *combo_box); /* GtkComboBox:has-entry callbacks */ static void gtk_combo_box_entry_contents_changed (GtkEntry *entry, gpointer user_data); static void gtk_combo_box_entry_active_changed (GtkComboBox *combo_box, gpointer user_data); /* GtkBuildable method implementation */ static GtkBuildableIface *parent_buildable_iface; static void gtk_combo_box_buildable_init (GtkBuildableIface *iface); static gboolean gtk_combo_box_buildable_custom_tag_start (GtkBuildable *buildable, GtkBuilder *builder, GObject *child, const gchar *tagname, GMarkupParser *parser, gpointer *data); static void gtk_combo_box_buildable_custom_tag_end (GtkBuildable *buildable, GtkBuilder *builder, GObject *child, const gchar *tagname, gpointer *data); static GObject *gtk_combo_box_buildable_get_internal_child (GtkBuildable *buildable, GtkBuilder *builder, const gchar *childname); /* GtkCellEditable method implementations */ static void gtk_combo_box_start_editing (GtkCellEditable *cell_editable, GdkEvent *event); static void gtk_combo_box_get_preferred_width (GtkWidget *widget, gint *minimum_size, gint *natural_size); static void gtk_combo_box_get_preferred_height (GtkWidget *widget, gint *minimum_size, gint *natural_size); static void gtk_combo_box_get_preferred_width_for_height (GtkWidget *widget, gint avail_size, gint *minimum_size, gint *natural_size); static void gtk_combo_box_get_preferred_height_for_width (GtkWidget *widget, gint avail_size, gint *minimum_size, gint *natural_size); G_DEFINE_TYPE_WITH_CODE (GtkComboBox, gtk_combo_box, GTK_TYPE_BIN, G_IMPLEMENT_INTERFACE (GTK_TYPE_CELL_LAYOUT, gtk_combo_box_cell_layout_init) G_IMPLEMENT_INTERFACE (GTK_TYPE_CELL_EDITABLE, gtk_combo_box_cell_editable_init) G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE, gtk_combo_box_buildable_init)) /* common */ static void gtk_combo_box_class_init (GtkComboBoxClass *klass) { GObjectClass *object_class; GtkContainerClass *container_class; GtkWidgetClass *widget_class; GtkBindingSet *binding_set; container_class = (GtkContainerClass *)klass; container_class->forall = gtk_combo_box_forall; container_class->add = gtk_combo_box_add; container_class->remove = gtk_combo_box_remove; widget_class = (GtkWidgetClass *)klass; widget_class->size_allocate = gtk_combo_box_size_allocate; widget_class->draw = gtk_combo_box_draw; widget_class->scroll_event = gtk_combo_box_scroll_event; widget_class->mnemonic_activate = gtk_combo_box_mnemonic_activate; widget_class->grab_focus = gtk_combo_box_grab_focus; widget_class->style_updated = gtk_combo_box_style_updated; widget_class->state_flags_changed = gtk_combo_box_state_flags_changed; widget_class->get_preferred_width = gtk_combo_box_get_preferred_width; widget_class->get_preferred_height = gtk_combo_box_get_preferred_height; widget_class->get_preferred_height_for_width = gtk_combo_box_get_preferred_height_for_width; widget_class->get_preferred_width_for_height = gtk_combo_box_get_preferred_width_for_height; widget_class->destroy = gtk_combo_box_destroy; object_class = (GObjectClass *)klass; object_class->constructor = gtk_combo_box_constructor; object_class->dispose = gtk_combo_box_dispose; object_class->finalize = gtk_combo_box_finalize; object_class->set_property = gtk_combo_box_set_property; object_class->get_property = gtk_combo_box_get_property; /* signals */ /** * GtkComboBox::changed: * @widget: the object which received the signal * * The changed signal is emitted when the active * item is changed. The can be due to the user selecting * a different item from the list, or due to a * call to gtk_combo_box_set_active_iter(). * It will also be emitted while typing into the entry of a combo box * with an entry. * * Since: 2.4 */ combo_box_signals[CHANGED] = g_signal_new (I_("changed"), G_OBJECT_CLASS_TYPE (klass), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GtkComboBoxClass, changed), NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0); /** * GtkComboBox::move-active: * @widget: the object that received the signal * @scroll_type: a #GtkScrollType * * The ::move-active signal is a * keybinding signal * which gets emitted to move the active selection. * * Since: 2.12 */ combo_box_signals[MOVE_ACTIVE] = g_signal_new_class_handler (I_("move-active"), G_OBJECT_CLASS_TYPE (klass), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_CALLBACK (gtk_combo_box_real_move_active), NULL, NULL, g_cclosure_marshal_VOID__ENUM, G_TYPE_NONE, 1, GTK_TYPE_SCROLL_TYPE); /** * GtkComboBox::popup: * @widget: the object that received the signal * * The ::popup signal is a * keybinding signal * which gets emitted to popup the combo box list. * * The default binding for this signal is Alt+Down. * * Since: 2.12 */ combo_box_signals[POPUP] = g_signal_new_class_handler (I_("popup"), G_OBJECT_CLASS_TYPE (klass), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_CALLBACK (gtk_combo_box_real_popup), NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0); /** * GtkComboBox::popdown: * @button: the object which received the signal * * The ::popdown signal is a * keybinding signal * 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_KEY_Down, GDK_MOD1_MASK, "popup", 0); gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Down, GDK_MOD1_MASK, "popup", 0); gtk_binding_entry_add_signal (binding_set, GDK_KEY_Up, GDK_MOD1_MASK, "popdown", 0); gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Up, GDK_MOD1_MASK, "popdown", 0); gtk_binding_entry_add_signal (binding_set, GDK_KEY_Escape, 0, "popdown", 0); gtk_binding_entry_add_signal (binding_set, GDK_KEY_Up, 0, "move-active", 1, GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_STEP_UP); gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Up, 0, "move-active", 1, GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_STEP_UP); gtk_binding_entry_add_signal (binding_set, GDK_KEY_Page_Up, 0, "move-active", 1, GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_PAGE_UP); gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Page_Up, 0, "move-active", 1, GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_PAGE_UP); gtk_binding_entry_add_signal (binding_set, GDK_KEY_Home, 0, "move-active", 1, GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_START); gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Home, 0, "move-active", 1, GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_START); gtk_binding_entry_add_signal (binding_set, GDK_KEY_Down, 0, "move-active", 1, GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_STEP_DOWN); gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Down, 0, "move-active", 1, GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_STEP_DOWN); gtk_binding_entry_add_signal (binding_set, GDK_KEY_Page_Down, 0, "move-active", 1, GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_PAGE_DOWN); gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Page_Down, 0, "move-active", 1, GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_PAGE_DOWN); gtk_binding_entry_add_signal (binding_set, GDK_KEY_End, 0, "move-active", 1, GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_END); gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_End, 0, "move-active", 1, GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_END); /* properties */ g_object_class_override_property (object_class, PROP_EDITING_CANCELED, "editing-canceled"); /** * GtkComboBox:model: * * The model from which the combo box takes the values shown * in the list. * * Since: 2.4 */ g_object_class_install_property (object_class, PROP_MODEL, g_param_spec_object ("model", P_("ComboBox model"), P_("The model for the combo box"), GTK_TYPE_TREE_MODEL, GTK_PARAM_READWRITE)); /** * GtkComboBox:wrap-width: * * If wrap-width is set to a positive value, the list will be * displayed in multiple columns, the number of columns is * determined by wrap-width. * * Since: 2.4 */ g_object_class_install_property (object_class, PROP_WRAP_WIDTH, g_param_spec_int ("wrap-width", P_("Wrap width"), P_("Wrap width for laying out the items in a grid"), 0, G_MAXINT, 0, GTK_PARAM_READWRITE)); /** * GtkComboBox:row-span-column: * * If this is set to a non-negative value, it must be the index of a column * of type %G_TYPE_INT in the model. * * The values of that column are used to determine how many rows a value in * the list will span. Therefore, the values in the model column pointed to * by this property must be greater than zero and not larger than wrap-width. * * Since: 2.4 */ g_object_class_install_property (object_class, PROP_ROW_SPAN_COLUMN, g_param_spec_int ("row-span-column", P_("Row span column"), P_("TreeModel column containing the row span values"), -1, G_MAXINT, -1, GTK_PARAM_READWRITE)); /** * GtkComboBox:column-span-column: * * If this is set to a non-negative value, it must be the index of a column * of type %G_TYPE_INT in the model. * * The values of that column are used to determine how many columns a value * in the list will span. * * Since: 2.4 */ g_object_class_install_property (object_class, PROP_COLUMN_SPAN_COLUMN, g_param_spec_int ("column-span-column", P_("Column span column"), P_("TreeModel column containing the column span values"), -1, G_MAXINT, -1, GTK_PARAM_READWRITE)); /** * GtkComboBox:active: * * The item which is currently active. If the model is a non-flat treemodel, * and the active item is not an immediate child of the root of the tree, * this property has the value * gtk_tree_path_get_indices (path)[0], * where path is the #GtkTreePath of the active item. * * Since: 2.4 */ g_object_class_install_property (object_class, PROP_ACTIVE, g_param_spec_int ("active", P_("Active item"), P_("The item which is currently active"), -1, G_MAXINT, -1, GTK_PARAM_READWRITE)); /** * GtkComboBox:add-tearoffs: * * The add-tearoffs property controls whether generated menus * have tearoff menu items. * * Note that this only affects menu style combo boxes. * * Since: 2.6 */ g_object_class_install_property (object_class, PROP_ADD_TEAROFFS, g_param_spec_boolean ("add-tearoffs", P_("Add tearoffs to menus"), P_("Whether dropdowns should have a tearoff menu item"), FALSE, GTK_PARAM_READWRITE)); /** * GtkComboBox:has-frame: * * The has-frame property controls whether a frame * is drawn around the entry. * * Since: 2.6 */ g_object_class_install_property (object_class, PROP_HAS_FRAME, g_param_spec_boolean ("has-frame", P_("Has Frame"), P_("Whether the combo box draws a frame around the child"), TRUE, GTK_PARAM_READWRITE)); g_object_class_install_property (object_class, PROP_FOCUS_ON_CLICK, g_param_spec_boolean ("focus-on-click", P_("Focus on click"), P_("Whether the combo box grabs focus when it is clicked with the mouse"), TRUE, GTK_PARAM_READWRITE)); /** * GtkComboBox:tearoff-title: * * A title that may be displayed by the window manager * when the popup is torn-off. * * Since: 2.10 */ g_object_class_install_property (object_class, PROP_TEAROFF_TITLE, g_param_spec_string ("tearoff-title", P_("Tearoff Title"), P_("A title that may be displayed by the window manager when the popup is torn-off"), NULL, GTK_PARAM_READWRITE)); /** * GtkComboBox:popup-shown: * * Whether the combo boxes dropdown is popped up. * Note that this property is mainly useful, because * it allows you to connect to notify::popup-shown. * * Since: 2.10 */ g_object_class_install_property (object_class, PROP_POPUP_SHOWN, g_param_spec_boolean ("popup-shown", P_("Popup shown"), P_("Whether the combo's dropdown is shown"), FALSE, GTK_PARAM_READABLE)); /** * GtkComboBox:button-sensitivity: * * Whether the dropdown button is sensitive when * the model is empty. * * Since: 2.14 */ g_object_class_install_property (object_class, PROP_BUTTON_SENSITIVITY, g_param_spec_enum ("button-sensitivity", P_("Button Sensitivity"), P_("Whether the dropdown button is sensitive when the model is empty"), GTK_TYPE_SENSITIVITY_TYPE, GTK_SENSITIVITY_AUTO, GTK_PARAM_READWRITE)); /** * GtkComboBox:has-entry: * * Whether the combo box has an entry. * * Since: 2.24 */ g_object_class_install_property (object_class, PROP_HAS_ENTRY, g_param_spec_boolean ("has-entry", P_("Has Entry"), P_("Whether combo box has an entry"), FALSE, GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY)); /** * GtkComboBox:entry-text-column: * * The column in the combo box's model to associate with strings from the entry * if the combo was created with #GtkComboBox:has-entry = %TRUE. * * Since: 2.24 */ g_object_class_install_property (object_class, PROP_ENTRY_TEXT_COLUMN, g_param_spec_int ("entry-text-column", P_("Entry Text Column"), P_("The column in the combo box's model to associate " "with strings from the entry if the combo was " "created with #GtkComboBox:has-entry = %TRUE"), -1, G_MAXINT, -1, GTK_PARAM_READWRITE)); /** * GtkComboBox:id-column: * * The column in the combo box's model that provides string * IDs for the values in the model, if != -1. * * Since: 3.0 */ g_object_class_install_property (object_class, PROP_ID_COLUMN, g_param_spec_int ("id-column", P_("ID Column"), P_("The column in the combo box's model that provides " "string IDs for the values in the model"), -1, G_MAXINT, -1, GTK_PARAM_READWRITE)); /** * GtkComboBox:active-id: * * The value of the ID column of the active row. * * Since: 3.0 */ g_object_class_install_property (object_class, PROP_ACTIVE_ID, g_param_spec_string ("active-id", P_("Active id"), P_("The value of the id column " "for the active row"), NULL, GTK_PARAM_READWRITE)); /** * GtkComboBox:popup-fixed-width: * * Whether the popup's width should be a fixed width matching the * allocated width of the combo box. * * Since: 3.0 */ g_object_class_install_property (object_class, PROP_POPUP_FIXED_WIDTH, g_param_spec_boolean ("popup-fixed-width", P_("Popup Fixed Width"), P_("Whether the popup's width should be a " "fixed width matching the allocated width " "of the combo box"), TRUE, GTK_PARAM_READWRITE)); /** * GtkComboBox:cell-area: * * The #GtkCellArea used to layout cell renderers for this combo box. * * If no area is specified when creating the combo box with gtk_combo_box_new_with_area() * a horizontally oriented #GtkCellAreaBox will be used. * * Since: 3.0 */ g_object_class_install_property (object_class, PROP_CELL_AREA, g_param_spec_object ("cell-area", P_("Cell Area"), P_("The GtkCellArea used to layout cells"), GTK_TYPE_CELL_AREA, GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY)); gtk_widget_class_install_style_property (widget_class, g_param_spec_boolean ("appears-as-list", P_("Appears as list"), P_("Whether dropdowns should look like lists rather than menus"), FALSE, GTK_PARAM_READABLE)); /** * GtkComboBox:arrow-size: * * Sets the minimum size of the arrow in the combo box. Note * that the arrow size is coupled to the font size, so in case * a larger font is used, the arrow will be larger than set * by arrow size. * * Since: 2.12 */ gtk_widget_class_install_style_property (widget_class, g_param_spec_int ("arrow-size", P_("Arrow Size"), P_("The minimum size of the arrow in the combo box"), 0, G_MAXINT, 15, GTK_PARAM_READABLE)); /** * GtkComboBox:arrow-scaling: * * Sets the amount of space used up by the combobox arrow, * proportional to the font size. * * Since: 3.2 */ gtk_widget_class_install_style_property (widget_class, g_param_spec_float ("arrow-scaling", P_("Arrow Scaling"), P_("The amount of space used by the arrow"), 0, 2.0, 1.0, GTK_PARAM_READABLE)); /** * GtkComboBox:shadow-type: * * Which kind of shadow to draw around the combo box. * * Since: 2.12 */ gtk_widget_class_install_style_property (widget_class, g_param_spec_enum ("shadow-type", P_("Shadow type"), P_("Which kind of shadow to draw around the combo box"), GTK_TYPE_SHADOW_TYPE, GTK_SHADOW_NONE, GTK_PARAM_READABLE)); g_type_class_add_private (object_class, sizeof (GtkComboBoxPrivate)); } static void gtk_combo_box_buildable_init (GtkBuildableIface *iface) { parent_buildable_iface = g_type_interface_peek_parent (iface); iface->add_child = _gtk_cell_layout_buildable_add_child; iface->custom_tag_start = gtk_combo_box_buildable_custom_tag_start; iface->custom_tag_end = gtk_combo_box_buildable_custom_tag_end; iface->get_internal_child = gtk_combo_box_buildable_get_internal_child; } static void gtk_combo_box_cell_layout_init (GtkCellLayoutIface *iface) { iface->get_area = gtk_combo_box_cell_layout_get_area; } static void gtk_combo_box_cell_editable_init (GtkCellEditableIface *iface) { iface->start_editing = gtk_combo_box_start_editing; } static void gtk_combo_box_init (GtkComboBox *combo_box) { GtkComboBoxPrivate *priv; combo_box->priv = G_TYPE_INSTANCE_GET_PRIVATE (combo_box, GTK_TYPE_COMBO_BOX, GtkComboBoxPrivate); priv = combo_box->priv; priv->wrap_width = 0; priv->active = -1; priv->active_row = NULL; priv->col_column = -1; priv->row_column = -1; priv->popup_shown = FALSE; priv->add_tearoffs = FALSE; priv->has_frame = TRUE; priv->is_cell_renderer = FALSE; priv->editing_canceled = FALSE; priv->auto_scroll = FALSE; priv->focus_on_click = TRUE; priv->button_sensitivity = GTK_SENSITIVITY_AUTO; priv->has_entry = FALSE; priv->popup_fixed_width = TRUE; priv->text_column = -1; priv->text_renderer = NULL; priv->id_column = -1; } static void gtk_combo_box_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec) { GtkComboBox *combo_box = GTK_COMBO_BOX (object); GtkComboBoxPrivate *priv = combo_box->priv; GtkCellArea *area; switch (prop_id) { case PROP_MODEL: gtk_combo_box_set_model (combo_box, g_value_get_object (value)); break; case PROP_WRAP_WIDTH: gtk_combo_box_set_wrap_width (combo_box, g_value_get_int (value)); break; case PROP_ROW_SPAN_COLUMN: gtk_combo_box_set_row_span_column (combo_box, g_value_get_int (value)); break; case PROP_COLUMN_SPAN_COLUMN: gtk_combo_box_set_column_span_column (combo_box, g_value_get_int (value)); break; case PROP_ACTIVE: gtk_combo_box_set_active (combo_box, g_value_get_int (value)); break; case PROP_ADD_TEAROFFS: gtk_combo_box_set_add_tearoffs (combo_box, g_value_get_boolean (value)); break; case PROP_HAS_FRAME: priv->has_frame = g_value_get_boolean (value); if (priv->has_entry) { GtkWidget *child; child = gtk_bin_get_child (GTK_BIN (combo_box)); gtk_entry_set_has_frame (GTK_ENTRY (child), priv->has_frame); } break; case PROP_FOCUS_ON_CLICK: gtk_combo_box_set_focus_on_click (combo_box, g_value_get_boolean (value)); break; case PROP_TEAROFF_TITLE: 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_POPUP_FIXED_WIDTH: gtk_combo_box_set_popup_fixed_width (combo_box, g_value_get_boolean (value)); break; case PROP_EDITING_CANCELED: priv->editing_canceled = g_value_get_boolean (value); break; case PROP_HAS_ENTRY: priv->has_entry = g_value_get_boolean (value); break; case PROP_ENTRY_TEXT_COLUMN: gtk_combo_box_set_entry_text_column (combo_box, g_value_get_int (value)); break; case PROP_ID_COLUMN: gtk_combo_box_set_id_column (combo_box, g_value_get_int (value)); break; case PROP_ACTIVE_ID: gtk_combo_box_set_active_id (combo_box, g_value_get_string (value)); break; case PROP_CELL_AREA: /* Construct-only, can only be assigned once */ area = g_value_get_object (value); if (area) { if (priv->area != NULL) { g_warning ("cell-area has already been set, ignoring construct property"); g_object_ref_sink (area); g_object_unref (area); } else priv->area = g_object_ref_sink (area); } break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void gtk_combo_box_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec) { GtkComboBox *combo_box = GTK_COMBO_BOX (object); GtkComboBoxPrivate *priv = combo_box->priv; switch (prop_id) { case PROP_MODEL: g_value_set_object (value, combo_box->priv->model); break; case PROP_WRAP_WIDTH: g_value_set_int (value, combo_box->priv->wrap_width); break; case PROP_ROW_SPAN_COLUMN: g_value_set_int (value, combo_box->priv->row_column); break; case PROP_COLUMN_SPAN_COLUMN: g_value_set_int (value, combo_box->priv->col_column); break; case PROP_ACTIVE: g_value_set_int (value, gtk_combo_box_get_active (combo_box)); break; case PROP_ADD_TEAROFFS: g_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_POPUP_FIXED_WIDTH: g_value_set_boolean (value, combo_box->priv->popup_fixed_width); break; case PROP_EDITING_CANCELED: g_value_set_boolean (value, priv->editing_canceled); break; case PROP_HAS_ENTRY: g_value_set_boolean (value, priv->has_entry); break; case PROP_ENTRY_TEXT_COLUMN: g_value_set_int (value, priv->text_column); break; case PROP_ID_COLUMN: g_value_set_int (value, priv->id_column); break; case PROP_ACTIVE_ID: g_value_set_string (value, gtk_combo_box_get_active_id (combo_box)); break; case PROP_CELL_AREA: g_value_set_object (value, priv->area); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void gtk_combo_box_state_flags_changed (GtkWidget *widget, GtkStateFlags previous) { GtkComboBox *combo_box = GTK_COMBO_BOX (widget); GtkComboBoxPrivate *priv = combo_box->priv; if (gtk_widget_get_realized (widget)) { if (priv->tree_view && priv->cell_view) { GtkStyleContext *context; GtkStateFlags state; GdkRGBA *color; context = gtk_widget_get_style_context (widget); state = gtk_widget_get_state_flags (widget); gtk_style_context_get (context, state, "background-color", &color, NULL); gtk_cell_view_set_background_rgba (GTK_CELL_VIEW (priv->cell_view), color); gdk_rgba_free (color); } } gtk_widget_queue_draw (widget); } static void gtk_combo_box_button_state_flags_changed (GtkWidget *widget, GtkStateFlags previous, gpointer data) { GtkComboBox *combo_box = GTK_COMBO_BOX (data); GtkComboBoxPrivate *priv = combo_box->priv; if (gtk_widget_get_realized (widget)) { if (!priv->tree_view && priv->cell_view) gtk_widget_set_state_flags (priv->cell_view, gtk_widget_get_state_flags (widget), TRUE); } gtk_widget_queue_draw (widget); } static void gtk_combo_box_check_appearance (GtkComboBox *combo_box) { GtkComboBoxPrivate *priv = combo_box->priv; gboolean appears_as_list; /* if wrap_width > 0, then we are in grid-mode and forced to use * unix style */ if (priv->wrap_width) appears_as_list = FALSE; else gtk_widget_style_get (GTK_WIDGET (combo_box), "appears-as-list", &appears_as_list, NULL); if (appears_as_list) { /* Destroy all the menu mode widgets, if they exist. */ if (GTK_IS_MENU (priv->popup_widget)) gtk_combo_box_menu_destroy (combo_box); /* Create the list mode widgets, if they don't already exist. */ if (!GTK_IS_TREE_VIEW (priv->tree_view)) gtk_combo_box_list_setup (combo_box); } else { /* Destroy all the list mode widgets, if they exist. */ if (GTK_IS_TREE_VIEW (priv->tree_view)) gtk_combo_box_list_destroy (combo_box); /* Create the menu mode widgets, if they don't already exist. */ if (!GTK_IS_MENU (priv->popup_widget)) gtk_combo_box_menu_setup (combo_box, TRUE); } gtk_widget_style_get (GTK_WIDGET (combo_box), "shadow-type", &priv->shadow_type, NULL); } static void gtk_combo_box_style_updated (GtkWidget *widget) { GtkComboBox *combo_box = GTK_COMBO_BOX (widget); GtkComboBoxPrivate *priv = combo_box->priv; GtkWidget *child; GTK_WIDGET_CLASS (gtk_combo_box_parent_class)->style_updated (widget); gtk_combo_box_check_appearance (combo_box); if (priv->tree_view && priv->cell_view) { GtkStyleContext *context; GdkRGBA *color; context = gtk_widget_get_style_context (widget); gtk_style_context_get (context, 0, "background-color", &color, NULL); gtk_cell_view_set_background_rgba (GTK_CELL_VIEW (priv->cell_view), color); gdk_rgba_free (color); } child = gtk_bin_get_child (GTK_BIN (combo_box)); if (GTK_IS_ENTRY (child)) g_object_set (child, "shadow-type", GTK_SHADOW_NONE == priv->shadow_type ? GTK_SHADOW_IN : GTK_SHADOW_NONE, NULL); } static void gtk_combo_box_button_toggled (GtkWidget *widget, gpointer data) { GtkComboBox *combo_box = GTK_COMBO_BOX (data); if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (widget))) { if (!combo_box->priv->popup_in_progress) gtk_combo_box_popup (combo_box); } else gtk_combo_box_popdown (combo_box); } static void gtk_combo_box_add (GtkContainer *container, GtkWidget *widget) { GtkComboBox *combo_box = GTK_COMBO_BOX (container); GtkComboBoxPrivate *priv = combo_box->priv; if (priv->has_entry && !GTK_IS_ENTRY (widget)) { g_warning ("Attempting to add a widget with type %s to a GtkComboBox that needs an entry " "(need an instance of GtkEntry or of a subclass)", G_OBJECT_TYPE_NAME (widget)); return; } if (priv->cell_view && gtk_widget_get_parent (priv->cell_view)) { gtk_widget_unparent (priv->cell_view); _gtk_bin_set_child (GTK_BIN (container), NULL); gtk_widget_queue_resize (GTK_WIDGET (container)); } gtk_widget_set_parent (widget, GTK_WIDGET (container)); _gtk_bin_set_child (GTK_BIN (container), widget); if (priv->cell_view && widget != priv->cell_view) { /* since the cell_view was unparented, it's gone now */ priv->cell_view = NULL; if (!priv->tree_view && priv->separator) { gtk_container_remove (GTK_CONTAINER (gtk_widget_get_parent (priv->separator)), priv->separator); priv->separator = NULL; gtk_widget_queue_resize (GTK_WIDGET (container)); } else if (priv->cell_view_frame) { gtk_widget_unparent (priv->cell_view_frame); priv->cell_view_frame = NULL; priv->box = NULL; } } if (priv->has_entry) { /* this flag is a hack to tell the entry to fill its allocation. */ _gtk_entry_set_is_cell_renderer (GTK_ENTRY (widget), TRUE); g_signal_connect (widget, "changed", G_CALLBACK (gtk_combo_box_entry_contents_changed), combo_box); gtk_entry_set_has_frame (GTK_ENTRY (widget), priv->has_frame); } } static void gtk_combo_box_remove (GtkContainer *container, GtkWidget *widget) { GtkComboBox *combo_box = GTK_COMBO_BOX (container); GtkComboBoxPrivate *priv = combo_box->priv; GtkTreePath *path; gboolean appears_as_list; if (priv->has_entry) { GtkWidget *child_widget; child_widget = gtk_bin_get_child (GTK_BIN (container)); if (widget && widget == child_widget) { g_signal_handlers_disconnect_by_func (widget, gtk_combo_box_entry_contents_changed, container); _gtk_entry_set_is_cell_renderer (GTK_ENTRY (widget), FALSE); } } if (widget == priv->cell_view) priv->cell_view = NULL; gtk_widget_unparent (widget); _gtk_bin_set_child (GTK_BIN (container), NULL); if (gtk_widget_in_destruction (GTK_WIDGET (combo_box))) return; gtk_widget_queue_resize (GTK_WIDGET (container)); if (!priv->tree_view) appears_as_list = FALSE; else appears_as_list = TRUE; if (appears_as_list) gtk_combo_box_list_destroy (combo_box); else if (GTK_IS_MENU (priv->popup_widget)) { gtk_combo_box_menu_destroy (combo_box); gtk_menu_detach (GTK_MENU (priv->popup_widget)); priv->popup_widget = NULL; } if (!priv->cell_view) { priv->cell_view = gtk_cell_view_new (); gtk_widget_set_parent (priv->cell_view, GTK_WIDGET (container)); _gtk_bin_set_child (GTK_BIN (container), priv->cell_view); gtk_widget_show (priv->cell_view); gtk_cell_view_set_model (GTK_CELL_VIEW (priv->cell_view), priv->model); } if (appears_as_list) gtk_combo_box_list_setup (combo_box); else gtk_combo_box_menu_setup (combo_box, TRUE); if (gtk_tree_row_reference_valid (priv->active_row)) { path = gtk_tree_row_reference_get_path (priv->active_row); gtk_combo_box_set_active_internal (combo_box, path); gtk_tree_path_free (path); } else gtk_combo_box_set_active_internal (combo_box, NULL); } static void gtk_combo_box_menu_show (GtkWidget *menu, gpointer user_data) { GtkComboBox *combo_box = GTK_COMBO_BOX (user_data); GtkComboBoxPrivate *priv = combo_box->priv; gtk_combo_box_child_show (menu, user_data); priv->popup_in_progress = TRUE; gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (priv->button), TRUE); priv->popup_in_progress = FALSE; } static void gtk_combo_box_menu_hide (GtkWidget *menu, gpointer user_data) { GtkComboBox *combo_box = GTK_COMBO_BOX (user_data); gtk_combo_box_child_hide (menu,user_data); gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (combo_box->priv->button), FALSE); } static void gtk_combo_box_detacher (GtkWidget *widget, GtkMenu *menu) { GtkComboBox *combo_box = GTK_COMBO_BOX (widget); GtkComboBoxPrivate *priv = combo_box->priv; g_return_if_fail (priv->popup_widget == (GtkWidget *) menu); g_signal_handlers_disconnect_by_func (menu->priv->toplevel, gtk_combo_box_menu_show, combo_box); g_signal_handlers_disconnect_by_func (menu->priv->toplevel, gtk_combo_box_menu_hide, combo_box); priv->popup_widget = NULL; } static void gtk_combo_box_set_popup_widget (GtkComboBox *combo_box, GtkWidget *popup) { GtkComboBoxPrivate *priv = combo_box->priv; if (GTK_IS_MENU (priv->popup_widget)) { gtk_menu_detach (GTK_MENU (priv->popup_widget)); priv->popup_widget = NULL; } else if (priv->popup_widget) { gtk_container_remove (GTK_CONTAINER (priv->scrolled_window), priv->popup_widget); g_object_unref (priv->popup_widget); priv->popup_widget = NULL; } if (GTK_IS_MENU (popup)) { if (priv->popup_window) { gtk_widget_destroy (priv->popup_window); priv->popup_window = NULL; } priv->popup_widget = popup; /* * Note that we connect to show/hide on the toplevel, not the * menu itself, since the menu is not shown/hidden when it is * popped up while torn-off. */ g_signal_connect (GTK_MENU (popup)->priv->toplevel, "show", G_CALLBACK (gtk_combo_box_menu_show), combo_box); g_signal_connect (GTK_MENU (popup)->priv->toplevel, "hide", G_CALLBACK (gtk_combo_box_menu_hide), combo_box); gtk_menu_attach_to_widget (GTK_MENU (popup), GTK_WIDGET (combo_box), gtk_combo_box_detacher); } else { if (!priv->popup_window) { GtkWidget *toplevel; priv->popup_window = gtk_window_new (GTK_WINDOW_POPUP); gtk_widget_set_name (priv->popup_window, "gtk-combobox-popup-window"); gtk_window_set_type_hint (GTK_WINDOW (priv->popup_window), GDK_WINDOW_TYPE_HINT_COMBO); g_signal_connect (GTK_WINDOW (priv->popup_window),"show", G_CALLBACK (gtk_combo_box_child_show), combo_box); g_signal_connect (GTK_WINDOW (priv->popup_window),"hide", G_CALLBACK (gtk_combo_box_child_hide), combo_box); toplevel = gtk_widget_get_toplevel (GTK_WIDGET (combo_box)); if (GTK_IS_WINDOW (toplevel)) { gtk_window_group_add_window (gtk_window_get_group (GTK_WINDOW (toplevel)), GTK_WINDOW (priv->popup_window)); gtk_window_set_transient_for (GTK_WINDOW (priv->popup_window), GTK_WINDOW (toplevel)); } gtk_window_set_resizable (GTK_WINDOW (priv->popup_window), FALSE); gtk_window_set_screen (GTK_WINDOW (priv->popup_window), gtk_widget_get_screen (GTK_WIDGET (combo_box))); priv->scrolled_window = gtk_scrolled_window_new (NULL, NULL); gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->scrolled_window), GTK_POLICY_NEVER, GTK_POLICY_NEVER); gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (priv->scrolled_window), GTK_SHADOW_IN); gtk_widget_show (priv->scrolled_window); gtk_container_add (GTK_CONTAINER (priv->popup_window), priv->scrolled_window); } gtk_container_add (GTK_CONTAINER (priv->scrolled_window), popup); gtk_widget_show (popup); g_object_ref (popup); priv->popup_widget = popup; } } static void get_widget_padding (GtkWidget *widget, GtkBorder *padding) { GtkStyleContext *context; GtkStateFlags state; context = gtk_widget_get_style_context (widget); state = gtk_style_context_get_state (context); gtk_style_context_get_padding (context, state, padding); } static void gtk_combo_box_menu_position_below (GtkMenu *menu, gint *x, gint *y, gint *push_in, gpointer user_data) { GtkComboBox *combo_box = GTK_COMBO_BOX (user_data); GtkAllocation child_allocation; gint sx, sy; GtkWidget *child; GtkRequisition req; GdkScreen *screen; gint monitor_num; GdkRectangle monitor; GtkBorder padding; /* FIXME: is using the size request here broken? */ child = gtk_bin_get_child (GTK_BIN (combo_box)); sx = sy = 0; gtk_widget_get_allocation (child, &child_allocation); if (!gtk_widget_get_has_window (child)) { sx += child_allocation.x; sy += child_allocation.y; } gdk_window_get_root_coords (gtk_widget_get_window (child), sx, sy, &sx, &sy); get_widget_padding (GTK_WIDGET (combo_box), &padding); sx -= padding.left; if (combo_box->priv->popup_fixed_width) gtk_widget_get_preferred_size (GTK_WIDGET (menu), &req, NULL); else gtk_widget_get_preferred_size (GTK_WIDGET (menu), NULL, &req); if (gtk_widget_get_direction (GTK_WIDGET (combo_box)) == GTK_TEXT_DIR_LTR) *x = sx; else *x = sx + child_allocation.width - req.width; *y = sy; screen = gtk_widget_get_screen (GTK_WIDGET (combo_box)); monitor_num = gdk_screen_get_monitor_at_window (screen, gtk_widget_get_window (GTK_WIDGET (combo_box))); gdk_screen_get_monitor_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; GtkAllocation allocation; GtkAllocation child_allocation; GList *children; gint screen_width; gint menu_xpos; gint menu_ypos; gint menu_width; combo_box = GTK_COMBO_BOX (user_data); widget = GTK_WIDGET (combo_box); active = gtk_menu_get_active (GTK_MENU (combo_box->priv->popup_widget)); gtk_widget_get_allocation (widget, &allocation); menu_xpos = allocation.x; menu_ypos = allocation.y + allocation.height / 2 - 2; if (combo_box->priv->popup_fixed_width) gtk_widget_get_preferred_width (GTK_WIDGET (menu), &menu_width, NULL); else gtk_widget_get_preferred_width (GTK_WIDGET (menu), NULL, &menu_width); if (active != NULL) { gtk_widget_get_allocation (active, &child_allocation); menu_ypos -= child_allocation.height / 2; } children = GTK_MENU_SHELL (combo_box->priv->popup_widget)->priv->children; while (children) { child = children->data; if (active == child) break; if (gtk_widget_get_visible (child)) { gtk_widget_get_allocation (child, &child_allocation); menu_ypos -= child_allocation.height; } children = children->next; } if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL) menu_xpos = menu_xpos + allocation.width - menu_width; gdk_window_get_root_coords (gtk_widget_get_window (widget), menu_xpos, menu_ypos, &menu_xpos, &menu_ypos); /* Clamp the position on screen */ screen_width = gdk_screen_get_width (gtk_widget_get_screen (widget)); if (menu_xpos < 0) menu_xpos = 0; else if ((menu_xpos + menu_width) > screen_width) menu_xpos -= ((menu_xpos + menu_width) - screen_width); *x = menu_xpos; *y = menu_ypos; *push_in = TRUE; } static void gtk_combo_box_menu_position (GtkMenu *menu, gint *x, gint *y, gint *push_in, gpointer user_data) { GtkComboBox *combo_box = GTK_COMBO_BOX (user_data); GtkComboBoxPrivate *priv = combo_box->priv; GtkWidget *menu_item; if (priv->wrap_width > 0 || priv->cell_view == NULL) gtk_combo_box_menu_position_below (menu, x, y, push_in, user_data); else { /* FIXME handle nested menus better */ menu_item = gtk_menu_get_active (GTK_MENU (priv->popup_widget)); if (menu_item) gtk_menu_shell_select_item (GTK_MENU_SHELL (priv->popup_widget), menu_item); gtk_combo_box_menu_position_over (menu, x, y, push_in, user_data); } if (!gtk_widget_get_visible (GTK_MENU (priv->popup_widget)->priv->toplevel)) gtk_window_set_type_hint (GTK_WINDOW (GTK_MENU (priv->popup_widget)->priv->toplevel), GDK_WINDOW_TYPE_HINT_COMBO); } static void gtk_combo_box_list_position (GtkComboBox *combo_box, gint *x, gint *y, gint *width, gint *height) { GtkComboBoxPrivate *priv = combo_box->priv; GtkAllocation allocation; GdkScreen *screen; gint monitor_num; GdkRectangle monitor; GtkRequisition popup_req; GtkPolicyType hpolicy, vpolicy; GdkWindow *window; /* under windows, the drop down list is as wide as the combo box itself. see bug #340204 */ GtkWidget *widget = GTK_WIDGET (combo_box); *x = *y = 0; gtk_widget_get_allocation (widget, &allocation); if (!gtk_widget_get_has_window (widget)) { *x += allocation.x; *y += allocation.y; } window = gtk_widget_get_window (widget); gdk_window_get_root_coords (gtk_widget_get_window (widget), *x, *y, x, y); *width = allocation.width; hpolicy = vpolicy = GTK_POLICY_NEVER; gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->scrolled_window), hpolicy, vpolicy); if (combo_box->priv->popup_fixed_width) { gtk_widget_get_preferred_size (priv->scrolled_window, &popup_req, NULL); if (popup_req.width > *width) { hpolicy = GTK_POLICY_ALWAYS; gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->scrolled_window), hpolicy, vpolicy); } } else { /* XXX This code depends on treeviews properly reporting their natural width * list-mode menus won't fill up to their natural width until then */ gtk_widget_get_preferred_size (priv->scrolled_window, NULL, &popup_req); if (popup_req.width > *width) { hpolicy = GTK_POLICY_NEVER; gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->scrolled_window), hpolicy, vpolicy); *width = popup_req.width; } } *height = popup_req.height; screen = gtk_widget_get_screen (GTK_WIDGET (combo_box)); monitor_num = gdk_screen_get_monitor_at_window (screen, window); gdk_screen_get_monitor_geometry (screen, monitor_num, &monitor); if (gtk_widget_get_direction (GTK_WIDGET (combo_box)) == GTK_TEXT_DIR_RTL) *x = *x + allocation.width - *width; if (*x < monitor.x) *x = monitor.x; else if (*x + *width > monitor.x + monitor.width) *x = monitor.x + monitor.width - *width; if (*y + allocation.height + *height <= monitor.y + monitor.height) *y += allocation.height; else if (*y - *height >= monitor.y) *y -= *height; else if (monitor.y + monitor.height - (*y + allocation.height) > *y - monitor.y) { *y += allocation.height; *height = monitor.y + monitor.height - *y; } else { *height = *y - monitor.y; *y = monitor.y; } if (popup_req.height > *height) { vpolicy = GTK_POLICY_ALWAYS; gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->scrolled_window), hpolicy, vpolicy); } } static gboolean cell_layout_is_sensitive (GtkCellLayout *layout) { GList *cells, *list; gboolean sensitive; cells = gtk_cell_layout_get_cells (layout); sensitive = FALSE; for (list = cells; list; list = list->next) { g_object_get (list->data, "sensitive", &sensitive, NULL); if (sensitive) break; } g_list_free (cells); return sensitive; } static gboolean cell_is_sensitive (GtkCellRenderer *cell, gpointer data) { gboolean *sensitive = data; g_object_get (cell, "sensitive", sensitive, NULL); return *sensitive; } static gboolean tree_column_row_is_sensitive (GtkComboBox *combo_box, GtkTreeIter *iter) { GtkComboBoxPrivate *priv = combo_box->priv; if (priv->row_separator_func) { if (priv->row_separator_func (priv->model, iter, priv->row_separator_data)) return FALSE; } if (priv->area) { gboolean sensitive; gtk_cell_area_apply_attributes (priv->area, priv->model, iter, FALSE, FALSE); sensitive = FALSE; gtk_cell_area_foreach (priv->area, cell_is_sensitive, &sensitive); return sensitive; } return TRUE; } static void update_menu_sensitivity (GtkComboBox *combo_box, GtkWidget *menu) { GtkComboBoxPrivate *priv = combo_box->priv; GList *children, *child; GtkWidget *item, *submenu, *separator; GtkWidget *cell_view; gboolean sensitive; if (!priv->model) return; children = gtk_container_get_children (GTK_CONTAINER (menu)); for (child = children; child; child = child->next) { item = GTK_WIDGET (child->data); cell_view = gtk_bin_get_child (GTK_BIN (item)); if (!GTK_IS_CELL_VIEW (cell_view)) continue; submenu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (item)); if (submenu != NULL) { gtk_widget_set_sensitive (item, TRUE); update_menu_sensitivity (combo_box, submenu); } else { sensitive = cell_layout_is_sensitive (GTK_CELL_LAYOUT (cell_view)); if (menu != priv->popup_widget && child == children) { separator = GTK_WIDGET (child->next->data); g_object_set (item, "visible", sensitive, NULL); g_object_set (separator, "visible", sensitive, NULL); } else gtk_widget_set_sensitive (item, sensitive); } } g_list_free (children); } static void gtk_combo_box_menu_popup (GtkComboBox *combo_box, guint button, guint32 activate_time) { GtkComboBoxPrivate *priv = combo_box->priv; GtkTreePath *path; gint active_item; gint width, min_width, nat_width; update_menu_sensitivity (combo_box, priv->popup_widget); active_item = -1; if (gtk_tree_row_reference_valid (priv->active_row)) { path = gtk_tree_row_reference_get_path (priv->active_row); active_item = gtk_tree_path_get_indices (path)[0]; gtk_tree_path_free (path); if (priv->add_tearoffs) active_item++; } /* FIXME handle nested menus better */ gtk_menu_set_active (GTK_MENU (priv->popup_widget), active_item); if (priv->wrap_width == 0) { GtkAllocation allocation; gtk_widget_get_allocation (GTK_WIDGET (combo_box), &allocation); width = allocation.width; gtk_widget_set_size_request (priv->popup_widget, -1, -1); gtk_widget_get_preferred_width (priv->popup_widget, &min_width, &nat_width); if (combo_box->priv->popup_fixed_width) width = MAX (width, min_width); else width = MAX (width, nat_width); gtk_widget_set_size_request (priv->popup_widget, width, -1); } gtk_menu_popup (GTK_MENU (priv->popup_widget), NULL, NULL, gtk_combo_box_menu_position, combo_box, button, activate_time); } static gboolean popup_grab_on_window (GdkWindow *window, GdkDevice *keyboard, GdkDevice *pointer, guint32 activate_time) { if (keyboard && gdk_device_grab (keyboard, window, GDK_OWNERSHIP_WINDOW, TRUE, GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK, NULL, activate_time) != GDK_GRAB_SUCCESS) return FALSE; if (pointer && gdk_device_grab (pointer, window, GDK_OWNERSHIP_WINDOW, TRUE, GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | GDK_POINTER_MOTION_MASK, NULL, activate_time) != GDK_GRAB_SUCCESS) { if (keyboard) gdk_device_ungrab (keyboard, activate_time); return FALSE; } return TRUE; } /** * gtk_combo_box_popup: * @combo_box: a #GtkComboBox * * Pops up the menu or dropdown list of @combo_box. * * This function is mostly intended for use by accessibility technologies; * applications should have little use for it. * * Since: 2.4 */ void gtk_combo_box_popup (GtkComboBox *combo_box) { g_return_if_fail (GTK_IS_COMBO_BOX (combo_box)); g_signal_emit (combo_box, combo_box_signals[POPUP], 0); } /** * gtk_combo_box_popup_for_device: * @combo_box: a #GtkComboBox * @device: a #GdkDevice * * Pops up the menu or dropdown list of @combo_box, the popup window * will be grabbed so only @device and its associated pointer/keyboard * are the only #GdkDevices able to send events to it. * * Since: 3.0 **/ void gtk_combo_box_popup_for_device (GtkComboBox *combo_box, GdkDevice *device) { GtkComboBoxPrivate *priv = combo_box->priv; gint x, y, width, height; GtkTreePath *path = NULL, *ppath; GtkWidget *toplevel; GdkDevice *keyboard, *pointer; guint32 time; g_return_if_fail (GTK_IS_COMBO_BOX (combo_box)); g_return_if_fail (GDK_IS_DEVICE (device)); if (!gtk_widget_get_realized (GTK_WIDGET (combo_box))) return; if (gtk_widget_get_mapped (priv->popup_widget)) return; if (priv->grab_pointer && priv->grab_keyboard) return; time = gtk_get_current_event_time (); if (gdk_device_get_source (device) == GDK_SOURCE_KEYBOARD) { keyboard = device; pointer = gdk_device_get_associated_device (device); } else { pointer = device; keyboard = gdk_device_get_associated_device (device); } if (GTK_IS_MENU (priv->popup_widget)) { gtk_combo_box_menu_popup (combo_box, priv->activate_button, priv->activate_time); return; } toplevel = gtk_widget_get_toplevel (GTK_WIDGET (combo_box)); if (GTK_IS_WINDOW (toplevel)) gtk_window_group_add_window (gtk_window_get_group (GTK_WINDOW (toplevel)), GTK_WINDOW (priv->popup_window)); gtk_widget_show_all (priv->scrolled_window); gtk_combo_box_list_position (combo_box, &x, &y, &width, &height); gtk_widget_set_size_request (priv->popup_window, width, height); gtk_window_move (GTK_WINDOW (priv->popup_window), x, y); if (gtk_tree_row_reference_valid (priv->active_row)) { path = gtk_tree_row_reference_get_path (priv->active_row); ppath = gtk_tree_path_copy (path); if (gtk_tree_path_up (ppath)) gtk_tree_view_expand_to_path (GTK_TREE_VIEW (priv->tree_view), ppath); gtk_tree_path_free (ppath); } gtk_tree_view_set_hover_expand (GTK_TREE_VIEW (priv->tree_view), TRUE); /* popup */ gtk_widget_show (priv->popup_window); if (path) { gtk_tree_view_set_cursor (GTK_TREE_VIEW (priv->tree_view), path, NULL, FALSE); gtk_tree_path_free (path); } gtk_widget_grab_focus (priv->popup_window); gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (priv->button), TRUE); if (!gtk_widget_has_focus (priv->tree_view)) gtk_widget_grab_focus (priv->tree_view); if (!popup_grab_on_window (gtk_widget_get_window (priv->popup_window), keyboard, pointer, time)) { gtk_widget_hide (priv->popup_window); return; } gtk_device_grab_add (priv->popup_window, pointer, TRUE); priv->grab_pointer = pointer; priv->grab_keyboard = keyboard; } static void gtk_combo_box_real_popup (GtkComboBox *combo_box) { GdkDevice *device; device = gtk_get_current_event_device (); if (!device) { GdkDeviceManager *device_manager; GdkDisplay *display; GList *devices; display = gtk_widget_get_display (GTK_WIDGET (combo_box)); device_manager = gdk_display_get_device_manager (display); /* No device was set, pick the first master device */ devices = gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_MASTER); device = devices->data; g_list_free (devices); } gtk_combo_box_popup_for_device (combo_box, device); } static gboolean gtk_combo_box_real_popdown (GtkComboBox *combo_box) { if (combo_box->priv->popup_shown) { gtk_combo_box_popdown (combo_box); return TRUE; } return FALSE; } /** * gtk_combo_box_popdown: * @combo_box: a #GtkComboBox * * Hides the menu or dropdown list of @combo_box. * * This function is mostly intended for use by accessibility technologies; * applications should have little use for it. * * Since: 2.4 */ void gtk_combo_box_popdown (GtkComboBox *combo_box) { GtkComboBoxPrivate *priv = combo_box->priv; g_return_if_fail (GTK_IS_COMBO_BOX (combo_box)); if (GTK_IS_MENU (priv->popup_widget)) { gtk_menu_popdown (GTK_MENU (priv->popup_widget)); return; } if (!gtk_widget_get_realized (GTK_WIDGET (combo_box))) return; gtk_device_grab_remove (priv->popup_window, priv->grab_pointer); gtk_widget_hide (priv->popup_window); gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (priv->button), FALSE); priv->grab_pointer = NULL; priv->grab_keyboard = NULL; } #define GTK_COMBO_BOX_SIZE_ALLOCATE_BUTTON \ gtk_widget_get_preferred_size (combo_box->priv->button, \ &req, NULL); \ \ if (is_rtl) \ child.x = allocation->x + padding.right; \ else \ child.x = allocation->x + allocation->width - req.width - padding.left; \ \ child.y = allocation->y + padding.top; \ child.width = req.width; \ child.height = allocation->height - (padding.top + padding.bottom); \ 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; GtkWidget *child_widget; gint focus_width, focus_pad; GtkAllocation child; GtkRequisition req; gboolean is_rtl = gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL; GtkBorder padding; gtk_widget_set_allocation (widget, allocation); child_widget = gtk_bin_get_child (GTK_BIN (widget)); get_widget_padding (widget, &padding); gtk_widget_style_get (widget, "focus-line-width", &focus_width, "focus-padding", &focus_pad, NULL); if (!priv->tree_view) { if (priv->cell_view) { GtkBorder button_padding; gint width; guint border_width; gtk_widget_size_allocate (priv->button, allocation); /* menu mode */ allocation->x += padding.left; allocation->y += padding.top; allocation->width -= padding.left + padding.right; allocation->height -= padding.top + padding.bottom; /* set some things ready */ border_width = gtk_container_get_border_width (GTK_CONTAINER (priv->button)); get_widget_padding (priv->button, &button_padding); child.x = allocation->x; child.y = allocation->y; width = allocation->width; child.height = allocation->height; if (!priv->is_cell_renderer) { child.x += border_width + button_padding.left + focus_width + focus_pad; child.y += border_width + button_padding.top + focus_width + focus_pad; width -= (2 * (border_width + focus_width + focus_pad)) + button_padding.left + button_padding.right; child.height -= (2 * (border_width + focus_width + focus_pad)) + button_padding.top + button_padding.bottom; } /* handle the children */ gtk_widget_get_preferred_size (priv->arrow, &req, NULL); child.width = req.width; if (!is_rtl) child.x += width - req.width - button_padding.right; 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_get_preferred_size (priv->separator, &req, NULL); 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 + focus_width + focus_pad) - child.x; } else { child.width = child.x; child.x = allocation->x + border_width + button_padding.left + focus_width + focus_pad; child.width -= child.x; } if (gtk_widget_get_visible (priv->popup_widget)) { gint width, menu_width; if (priv->wrap_width == 0) { GtkAllocation combo_box_allocation; gtk_widget_get_allocation (GTK_WIDGET (combo_box), &combo_box_allocation); width = combo_box_allocation.width; gtk_widget_set_size_request (priv->popup_widget, -1, -1); if (combo_box->priv->popup_fixed_width) gtk_widget_get_preferred_width (priv->popup_widget, &menu_width, NULL); else gtk_widget_get_preferred_width (priv->popup_widget, NULL, &menu_width); gtk_widget_set_size_request (priv->popup_widget, MAX (width, menu_width), -1); } /* reposition the menu after giving it a new width */ gtk_menu_reposition (GTK_MENU (priv->popup_widget)); } child.width = MAX (1, child.width); child.height = MAX (1, child.height); gtk_widget_size_allocate (child_widget, &child); } else { GTK_COMBO_BOX_SIZE_ALLOCATE_BUTTON if (is_rtl) child.x = allocation->x + req.width + padding.right; else child.x = allocation->x + padding.left; child.y = allocation->y + padding.top; child.width = allocation->width - req.width - (padding.left + padding.right); child.width = MAX (1, child.width); child.height = MAX (1, child.height); gtk_widget_size_allocate (child_widget, &child); } } else { /* list mode */ guint border_width = gtk_container_get_border_width (GTK_CONTAINER (widget)); /* 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 += padding.left + border_width; child.y += padding.top + border_width; child.width = MAX (1, child.width - (2 * border_width) - (padding.left + padding.right)); child.height = MAX (1, child.height - (2 * border_width) - (padding.top + padding.bottom)); gtk_widget_size_allocate (priv->cell_view_frame, &child); /* the sample */ if (priv->has_frame) { GtkBorder frame_padding; border_width = gtk_container_get_border_width (GTK_CONTAINER (priv->cell_view_frame)); get_widget_padding (priv->cell_view_frame, &frame_padding); child.x += border_width + frame_padding.left; child.y += border_width + frame_padding.right; child.width -= (2 * border_width) + frame_padding.left + frame_padding.right; child.height -= (2 * border_width) + frame_padding.top + frame_padding.bottom; } } else { child.x += padding.left + border_width; child.y += padding.top + border_width; child.width -= (2 * border_width) - (padding.left + padding.right); child.height -= (2 * border_width) - (padding.top + padding.bottom); } if (gtk_widget_get_visible (priv->popup_window)) { gint x, y, width, height; gtk_combo_box_list_position (combo_box, &x, &y, &width, &height); gtk_window_move (GTK_WINDOW (priv->popup_window), x, y); gtk_widget_set_size_request (priv->popup_window, width, height); } child.width = MAX (1, child.width); child.height = MAX (1, child.height); gtk_widget_size_allocate (child_widget, &child); } } #undef GTK_COMBO_BOX_ALLOCATE_BUTTON static void gtk_combo_box_unset_model (GtkComboBox *combo_box) { GtkComboBoxPrivate *priv = combo_box->priv; if (priv->model) { g_signal_handler_disconnect (priv->model, priv->inserted_id); g_signal_handler_disconnect (priv->model, priv->deleted_id); g_signal_handler_disconnect (priv->model, priv->reordered_id); g_signal_handler_disconnect (priv->model, priv->changed_id); } if (priv->model) { g_object_unref (priv->model); priv->model = NULL; } if (priv->active_row) { gtk_tree_row_reference_free (priv->active_row); priv->active_row = NULL; } if (priv->cell_view) gtk_cell_view_set_model (GTK_CELL_VIEW (priv->cell_view), NULL); } static void gtk_combo_box_forall (GtkContainer *container, gboolean include_internals, GtkCallback callback, gpointer callback_data) { GtkComboBox *combo_box = GTK_COMBO_BOX (container); GtkComboBoxPrivate *priv = combo_box->priv; GtkWidget *child; if (include_internals) { if (priv->button) (* callback) (priv->button, callback_data); if (priv->cell_view_frame) (* callback) (priv->cell_view_frame, callback_data); } child = gtk_bin_get_child (GTK_BIN (container)); if (child) (* callback) (child, callback_data); } static void gtk_combo_box_child_show (GtkWidget *widget, GtkComboBox *combo_box) { GtkComboBoxPrivate *priv = combo_box->priv; priv->popup_shown = TRUE; g_object_notify (G_OBJECT (combo_box), "popup-shown"); } static void gtk_combo_box_child_hide (GtkWidget *widget, GtkComboBox *combo_box) { GtkComboBoxPrivate *priv = combo_box->priv; priv->popup_shown = FALSE; g_object_notify (G_OBJECT (combo_box), "popup-shown"); } static gboolean gtk_combo_box_draw (GtkWidget *widget, cairo_t *cr) { GtkComboBox *combo_box = GTK_COMBO_BOX (widget); GtkComboBoxPrivate *priv = combo_box->priv; if (priv->shadow_type != GTK_SHADOW_NONE) { GtkStyleContext *context; GtkStateFlags state; context = gtk_widget_get_style_context (widget); state = gtk_widget_get_state_flags (widget); gtk_style_context_set_state (context, state); gtk_render_background (context, cr, 0, 0, gtk_widget_get_allocated_width (widget), gtk_widget_get_allocated_height (widget)); gtk_render_frame (context, cr, 0, 0, gtk_widget_get_allocated_width (widget), gtk_widget_get_allocated_height (widget)); } gtk_container_propagate_draw (GTK_CONTAINER (widget), priv->button, cr); if (priv->tree_view && priv->cell_view_frame) { gtk_container_propagate_draw (GTK_CONTAINER (widget), priv->cell_view_frame, cr); } gtk_container_propagate_draw (GTK_CONTAINER (widget), gtk_bin_get_child (GTK_BIN (widget)), cr); return FALSE; } typedef struct { GtkComboBox *combo; GtkTreePath *path; GtkTreeIter iter; gboolean found; gboolean set; gboolean visible; } SearchData; static gboolean path_visible (GtkTreeView *view, GtkTreePath *path) { GtkRBTree *tree; GtkRBNode *node; /* Note that we rely on the fact that collapsed rows don't have nodes */ return _gtk_tree_view_find_node (view, path, &tree, &node); } static gboolean tree_next_func (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data) { SearchData *search_data = (SearchData *)data; if (search_data->found) { if (!tree_column_row_is_sensitive (search_data->combo, iter)) return FALSE; if (search_data->visible && !path_visible (GTK_TREE_VIEW (search_data->combo->priv->tree_view), path)) return FALSE; search_data->set = TRUE; search_data->iter = *iter; return TRUE; } if (gtk_tree_path_compare (path, search_data->path) == 0) search_data->found = TRUE; return FALSE; } static gboolean tree_next (GtkComboBox *combo, GtkTreeModel *model, GtkTreeIter *iter, GtkTreeIter *next, gboolean visible) { SearchData search_data; search_data.combo = combo; search_data.path = gtk_tree_model_get_path (model, iter); search_data.visible = visible; search_data.found = FALSE; search_data.set = FALSE; gtk_tree_model_foreach (model, tree_next_func, &search_data); *next = search_data.iter; gtk_tree_path_free (search_data.path); return search_data.set; } static gboolean tree_prev_func (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data) { SearchData *search_data = (SearchData *)data; if (gtk_tree_path_compare (path, search_data->path) == 0) { search_data->found = TRUE; return TRUE; } if (!tree_column_row_is_sensitive (search_data->combo, iter)) return FALSE; if (search_data->visible && !path_visible (GTK_TREE_VIEW (search_data->combo->priv->tree_view), path)) return FALSE; search_data->set = TRUE; search_data->iter = *iter; return FALSE; } static gboolean tree_prev (GtkComboBox *combo, GtkTreeModel *model, GtkTreeIter *iter, GtkTreeIter *prev, gboolean visible) { SearchData search_data; search_data.combo = combo; search_data.path = gtk_tree_model_get_path (model, iter); search_data.visible = visible; search_data.found = FALSE; search_data.set = FALSE; gtk_tree_model_foreach (model, tree_prev_func, &search_data); *prev = search_data.iter; gtk_tree_path_free (search_data.path); return search_data.set; } static gboolean tree_last_func (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data) { SearchData *search_data = (SearchData *)data; if (!tree_column_row_is_sensitive (search_data->combo, iter)) return FALSE; /* Note that we rely on the fact that collapsed rows don't have nodes */ if (search_data->visible && !path_visible (GTK_TREE_VIEW (search_data->combo->priv->tree_view), path)) return FALSE; search_data->set = TRUE; search_data->iter = *iter; return FALSE; } static gboolean tree_last (GtkComboBox *combo, GtkTreeModel *model, GtkTreeIter *last, gboolean visible) { SearchData search_data; search_data.combo = combo; search_data.visible = visible; search_data.set = FALSE; gtk_tree_model_foreach (model, tree_last_func, &search_data); *last = search_data.iter; return search_data.set; } static gboolean tree_first_func (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data) { SearchData *search_data = (SearchData *)data; if (!tree_column_row_is_sensitive (search_data->combo, iter)) return FALSE; if (search_data->visible && !path_visible (GTK_TREE_VIEW (search_data->combo->priv->tree_view), path)) return FALSE; search_data->set = TRUE; search_data->iter = *iter; return TRUE; } static gboolean tree_first (GtkComboBox *combo, GtkTreeModel *model, GtkTreeIter *first, gboolean visible) { SearchData search_data; search_data.combo = combo; search_data.visible = visible; search_data.set = FALSE; gtk_tree_model_foreach (model, tree_first_func, &search_data); *first = search_data.iter; return search_data.set; } static gboolean gtk_combo_box_scroll_event (GtkWidget *widget, GdkEventScroll *event) { GtkComboBox *combo_box = GTK_COMBO_BOX (widget); gboolean found; GtkTreeIter iter; GtkTreeIter new_iter; if (!gtk_combo_box_get_active_iter (combo_box, &iter)) return TRUE; if (event->direction == GDK_SCROLL_UP) found = tree_prev (combo_box, combo_box->priv->model, &iter, &new_iter, FALSE); else found = tree_next (combo_box, combo_box->priv->model, &iter, &new_iter, FALSE); if (found) gtk_combo_box_set_active_iter (combo_box, &new_iter); return TRUE; } /* * menu style */ static gboolean gtk_combo_box_row_separator_func (GtkTreeModel *model, GtkTreeIter *iter, GtkComboBox *combo) { GtkComboBoxPrivate *priv = combo->priv; if (priv->row_separator_func) return priv->row_separator_func (model, iter, priv->row_separator_data); return FALSE; } static gboolean gtk_combo_box_header_func (GtkTreeModel *model, GtkTreeIter *iter, GtkComboBox *combo) { /* Every submenu has a selectable header, however we * can expose a method to make that configurable by * the user (like row_separator_func is done) */ return TRUE; } static void gtk_combo_box_menu_setup (GtkComboBox *combo_box, gboolean add_children) { GtkComboBoxPrivate *priv = combo_box->priv; GtkWidget *child; GtkWidget *menu; child = gtk_bin_get_child (GTK_BIN (combo_box)); if (priv->cell_view) { priv->button = gtk_toggle_button_new (); gtk_button_set_focus_on_click (GTK_BUTTON (priv->button), priv->focus_on_click); g_signal_connect (priv->button, "toggled", G_CALLBACK (gtk_combo_box_button_toggled), combo_box); gtk_widget_set_parent (priv->button, gtk_widget_get_parent (child)); priv->box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0); gtk_container_add (GTK_CONTAINER (priv->button), priv->box); priv->separator = gtk_separator_new (GTK_ORIENTATION_VERTICAL); gtk_container_add (GTK_CONTAINER (priv->box), priv->separator); priv->arrow = gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_NONE); gtk_container_add (GTK_CONTAINER (priv->box), priv->arrow); gtk_widget_show_all (priv->button); } else { priv->button = gtk_toggle_button_new (); gtk_button_set_focus_on_click (GTK_BUTTON (priv->button), priv->focus_on_click); g_signal_connect (priv->button, "toggled", G_CALLBACK (gtk_combo_box_button_toggled), combo_box); gtk_widget_set_parent (priv->button, gtk_widget_get_parent (child)); priv->arrow = gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_NONE); gtk_container_add (GTK_CONTAINER (priv->button), priv->arrow); gtk_widget_show_all (priv->button); } g_signal_connect (priv->button, "button-press-event", G_CALLBACK (gtk_combo_box_menu_button_press), combo_box); g_signal_connect (priv->button, "state-flags-changed", G_CALLBACK (gtk_combo_box_button_state_flags_changed), combo_box); /* create our funky menu */ menu = _gtk_tree_menu_new_with_area (priv->area); gtk_widget_set_name (menu, "gtk-combobox-popup-menu"); _gtk_tree_menu_set_model (GTK_TREE_MENU (menu), priv->model); _gtk_tree_menu_set_wrap_width (GTK_TREE_MENU (menu), priv->wrap_width); _gtk_tree_menu_set_row_span_column (GTK_TREE_MENU (menu), priv->row_column); _gtk_tree_menu_set_column_span_column (GTK_TREE_MENU (menu), priv->col_column); _gtk_tree_menu_set_tearoff (GTK_TREE_MENU (menu), combo_box->priv->add_tearoffs); g_signal_connect (menu, "menu-activate", G_CALLBACK (gtk_combo_box_menu_activate), combo_box); /* Chain our row_separator_func through */ _gtk_tree_menu_set_row_separator_func (GTK_TREE_MENU (menu), (GtkTreeViewRowSeparatorFunc)gtk_combo_box_row_separator_func, combo_box, NULL); _gtk_tree_menu_set_header_func (GTK_TREE_MENU (menu), (GtkTreeMenuHeaderFunc)gtk_combo_box_header_func, combo_box, NULL); g_signal_connect (menu, "key-press-event", G_CALLBACK (gtk_combo_box_menu_key_press), combo_box); gtk_combo_box_set_popup_widget (combo_box, menu); gtk_combo_box_update_title (combo_box); } static void gtk_combo_box_menu_destroy (GtkComboBox *combo_box) { GtkComboBoxPrivate *priv = combo_box->priv; g_signal_handlers_disconnect_matched (priv->button, G_SIGNAL_MATCH_DATA, 0, 0, NULL, gtk_combo_box_menu_button_press, NULL); g_signal_handlers_disconnect_matched (priv->button, G_SIGNAL_MATCH_DATA, 0, 0, NULL, gtk_combo_box_button_state_flags_changed, combo_box); g_signal_handlers_disconnect_matched (priv->popup_widget, G_SIGNAL_MATCH_DATA, 0, 0, NULL, gtk_combo_box_menu_activate, combo_box); /* unparent will remove our latest ref */ gtk_widget_unparent (priv->button); priv->box = NULL; priv->button = NULL; priv->arrow = NULL; priv->separator = NULL; /* changing the popup window will unref the menu and the children */ } /* callbacks */ static gboolean gtk_combo_box_menu_button_press (GtkWidget *widget, GdkEventButton *event, gpointer user_data) { GtkComboBox *combo_box = GTK_COMBO_BOX (user_data); GtkComboBoxPrivate *priv = combo_box->priv; if (GTK_IS_MENU (priv->popup_widget) && event->type == GDK_BUTTON_PRESS && event->button == 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_activate (GtkWidget *menu, const gchar *path, GtkComboBox *combo_box) { GtkTreeIter iter; if (gtk_tree_model_get_iter_from_string (combo_box->priv->model, &iter, path)) gtk_combo_box_set_active_iter (combo_box, &iter); g_object_set (combo_box, "editing-canceled", FALSE, NULL); } static void gtk_combo_box_update_sensitivity (GtkComboBox *combo_box) { GtkTreeIter iter; gboolean sensitive = TRUE; /* fool code checkers */ if (!combo_box->priv->button) return; switch (combo_box->priv->button_sensitivity) { case GTK_SENSITIVITY_ON: sensitive = TRUE; break; case GTK_SENSITIVITY_OFF: sensitive = FALSE; break; case GTK_SENSITIVITY_AUTO: sensitive = combo_box->priv->model && gtk_tree_model_get_iter_first (combo_box->priv->model, &iter); break; default: g_assert_not_reached (); break; } gtk_widget_set_sensitive (combo_box->priv->button, sensitive); /* In list-mode, we also need to update sensitivity of the event box */ if (GTK_IS_TREE_VIEW (combo_box->priv->tree_view) && combo_box->priv->cell_view) gtk_widget_set_sensitive (combo_box->priv->box, sensitive); } static void gtk_combo_box_model_row_inserted (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer user_data) { GtkComboBox *combo_box = GTK_COMBO_BOX (user_data); if (combo_box->priv->tree_view) gtk_combo_box_list_popup_resize (combo_box); gtk_combo_box_update_sensitivity (combo_box); } static void gtk_combo_box_model_row_deleted (GtkTreeModel *model, GtkTreePath *path, gpointer user_data) { GtkComboBox *combo_box = GTK_COMBO_BOX (user_data); GtkComboBoxPrivate *priv = combo_box->priv; if (!gtk_tree_row_reference_valid (priv->active_row)) { if (priv->cell_view) gtk_cell_view_set_displayed_row (GTK_CELL_VIEW (priv->cell_view), NULL); g_signal_emit (combo_box, combo_box_signals[CHANGED], 0); } if (priv->tree_view) gtk_combo_box_list_popup_resize (combo_box); gtk_combo_box_update_sensitivity (combo_box); } static void gtk_combo_box_model_rows_reordered (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gint *new_order, gpointer user_data) { gtk_tree_row_reference_reordered (G_OBJECT (user_data), path, iter, new_order); } static void gtk_combo_box_model_row_changed (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer user_data) { GtkComboBox *combo_box = GTK_COMBO_BOX (user_data); GtkComboBoxPrivate *priv = combo_box->priv; GtkTreePath *active_path; /* FIXME this belongs to GtkCellView */ if (gtk_tree_row_reference_valid (priv->active_row)) { active_path = gtk_tree_row_reference_get_path (priv->active_row); if (gtk_tree_path_compare (path, active_path) == 0 && priv->cell_view) gtk_widget_queue_resize (GTK_WIDGET (priv->cell_view)); gtk_tree_path_free (active_path); } if (priv->tree_view) gtk_combo_box_list_row_changed (model, path, iter, user_data); } static gboolean list_popup_resize_idle (gpointer user_data) { GtkComboBox *combo_box = GTK_COMBO_BOX (user_data); GtkComboBoxPrivate *priv = combo_box->priv; gint x, y, width, height; if (priv->tree_view && gtk_widget_get_mapped (priv->popup_window)) { gtk_combo_box_list_position (combo_box, &x, &y, &width, &height); gtk_widget_set_size_request (priv->popup_window, width, height); gtk_window_move (GTK_WINDOW (priv->popup_window), x, y); } priv->resize_idle_id = 0; return FALSE; } static void gtk_combo_box_list_popup_resize (GtkComboBox *combo_box) { GtkComboBoxPrivate *priv = combo_box->priv; if (!priv->resize_idle_id) priv->resize_idle_id = gdk_threads_add_idle (list_popup_resize_idle, combo_box); } static void gtk_combo_box_model_row_expanded (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer user_data) { GtkComboBox *combo_box = GTK_COMBO_BOX (user_data); gtk_combo_box_list_popup_resize (combo_box); } /* * list style */ static void gtk_combo_box_list_setup (GtkComboBox *combo_box) { GtkComboBoxPrivate *priv = combo_box->priv; GtkTreeSelection *sel; GtkWidget *child; GtkWidget *widget = GTK_WIDGET (combo_box); priv->button = gtk_toggle_button_new (); child = gtk_bin_get_child (GTK_BIN (combo_box)); gtk_widget_set_parent (priv->button, gtk_widget_get_parent (child)); g_signal_connect (priv->button, "button-press-event", G_CALLBACK (gtk_combo_box_list_button_pressed), combo_box); g_signal_connect (priv->button, "toggled", G_CALLBACK (gtk_combo_box_button_toggled), combo_box); priv->arrow = gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_NONE); gtk_container_add (GTK_CONTAINER (priv->button), priv->arrow); priv->separator = NULL; gtk_widget_show_all (priv->button); if (priv->cell_view) { GtkStyleContext *context; GtkStateFlags state; GdkRGBA *color; context = gtk_widget_get_style_context (widget); state = gtk_widget_get_state_flags (widget); gtk_style_context_get (context, state, "background-color", &color, NULL); gtk_cell_view_set_background_rgba (GTK_CELL_VIEW (priv->cell_view), color); gdk_rgba_free (color); 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_widget_get_parent (child)); gtk_container_add (GTK_CONTAINER (priv->cell_view_frame), priv->box); gtk_widget_show_all (priv->cell_view_frame); g_signal_connect (priv->box, "button-press-event", G_CALLBACK (gtk_combo_box_list_button_pressed), combo_box); } priv->tree_view = gtk_tree_view_new (); sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (priv->tree_view)); gtk_tree_selection_set_mode (sel, GTK_SELECTION_BROWSE); gtk_tree_selection_set_select_function (sel, gtk_combo_box_list_select_func, NULL, NULL); gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (priv->tree_view), FALSE); gtk_tree_view_set_hover_selection (GTK_TREE_VIEW (priv->tree_view), TRUE); gtk_tree_view_set_row_separator_func (GTK_TREE_VIEW (priv->tree_view), (GtkTreeViewRowSeparatorFunc)gtk_combo_box_row_separator_func, combo_box, NULL); if (priv->model) gtk_tree_view_set_model (GTK_TREE_VIEW (priv->tree_view), priv->model); gtk_tree_view_append_column (GTK_TREE_VIEW (priv->tree_view), gtk_tree_view_column_new_with_area (priv->area)); if (gtk_tree_row_reference_valid (priv->active_row)) { GtkTreePath *path; path = gtk_tree_row_reference_get_path (priv->active_row); gtk_tree_view_set_cursor (GTK_TREE_VIEW (priv->tree_view), path, NULL, FALSE); gtk_tree_path_free (path); } /* set sample/popup widgets */ gtk_combo_box_set_popup_widget (combo_box, priv->tree_view); g_signal_connect (priv->tree_view, "key-press-event", G_CALLBACK (gtk_combo_box_list_key_press), combo_box); g_signal_connect (priv->tree_view, "enter-notify-event", G_CALLBACK (gtk_combo_box_list_enter_notify), combo_box); g_signal_connect (priv->tree_view, "row-expanded", G_CALLBACK (gtk_combo_box_model_row_expanded), combo_box); g_signal_connect (priv->tree_view, "row-collapsed", G_CALLBACK (gtk_combo_box_model_row_expanded), combo_box); g_signal_connect (priv->popup_window, "button-press-event", G_CALLBACK (gtk_combo_box_list_button_pressed), combo_box); g_signal_connect (priv->popup_window, "button-release-event", G_CALLBACK (gtk_combo_box_list_button_released), combo_box); gtk_widget_show (priv->tree_view); gtk_combo_box_update_sensitivity (combo_box); } static void gtk_combo_box_list_destroy (GtkComboBox *combo_box) { GtkComboBoxPrivate *priv = combo_box->priv; /* disconnect signals */ g_signal_handlers_disconnect_matched (priv->tree_view, G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, combo_box); g_signal_handlers_disconnect_matched (priv->button, G_SIGNAL_MATCH_DATA, 0, 0, NULL, gtk_combo_box_list_button_pressed, NULL); g_signal_handlers_disconnect_matched (priv->popup_window, G_SIGNAL_MATCH_DATA, 0, 0, NULL, gtk_combo_box_list_button_pressed, NULL); g_signal_handlers_disconnect_matched (priv->popup_window, G_SIGNAL_MATCH_DATA, 0, 0, NULL, gtk_combo_box_list_button_released, NULL); g_signal_handlers_disconnect_matched (priv->popup_window, G_SIGNAL_MATCH_DATA, 0, 0, NULL, gtk_combo_box_child_show, NULL); g_signal_handlers_disconnect_matched (priv->popup_window, G_SIGNAL_MATCH_DATA, 0, 0, NULL, gtk_combo_box_child_hide, NULL); if (priv->box) g_signal_handlers_disconnect_matched (priv->box, G_SIGNAL_MATCH_DATA, 0, 0, NULL, gtk_combo_box_list_button_pressed, NULL); /* destroy things (unparent will kill the latest ref from us) * last unref on button will destroy the arrow */ gtk_widget_unparent (priv->button); priv->button = NULL; priv->arrow = NULL; if (priv->cell_view) { g_object_set (priv->cell_view, "background-set", FALSE, NULL); } if (priv->cell_view_frame) { gtk_widget_unparent (priv->cell_view_frame); priv->cell_view_frame = NULL; priv->box = NULL; } if (priv->scroll_timer) { g_source_remove (priv->scroll_timer); priv->scroll_timer = 0; } if (priv->resize_idle_id) { g_source_remove (priv->resize_idle_id); priv->resize_idle_id = 0; } gtk_widget_destroy (priv->tree_view); priv->tree_view = NULL; if (priv->popup_widget) { g_object_unref (priv->popup_widget); priv->popup_widget = NULL; } } /* callbacks */ static gboolean gtk_combo_box_list_button_pressed (GtkWidget *widget, GdkEventButton *event, gpointer data) { GtkComboBox *combo_box = GTK_COMBO_BOX (data); GtkComboBoxPrivate *priv = combo_box->priv; GtkWidget *ewidget = gtk_get_event_widget ((GdkEvent *)event); if (ewidget == priv->popup_window) return TRUE; if ((ewidget != priv->button && ewidget != priv->box) || gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (priv->button))) return FALSE; if (priv->focus_on_click && !gtk_widget_has_focus (priv->button)) gtk_widget_grab_focus (priv->button); gtk_combo_box_popup_for_device (combo_box, event->device); gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (priv->button), TRUE); priv->auto_scroll = FALSE; if (priv->scroll_timer == 0) priv->scroll_timer = gdk_threads_add_timeout (SCROLL_TIME, (GSourceFunc) gtk_combo_box_list_scroll_timeout, combo_box); priv->popup_in_progress = TRUE; return TRUE; } static gboolean gtk_combo_box_list_button_released (GtkWidget *widget, GdkEventButton *event, gpointer data) { gboolean ret; GtkTreePath *path = NULL; GtkTreeIter iter; GtkComboBox *combo_box = GTK_COMBO_BOX (data); GtkComboBoxPrivate *priv = combo_box->priv; gboolean popup_in_progress = FALSE; GtkWidget *ewidget = gtk_get_event_widget ((GdkEvent *)event); if (priv->popup_in_progress) { popup_in_progress = TRUE; priv->popup_in_progress = FALSE; } gtk_tree_view_set_hover_expand (GTK_TREE_VIEW (priv->tree_view), FALSE); if (priv->scroll_timer) { g_source_remove (priv->scroll_timer); priv->scroll_timer = 0; } if (ewidget != priv->tree_view) { if ((ewidget == priv->button || ewidget == priv->box) && !popup_in_progress && gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (priv->button))) { gtk_combo_box_popdown (combo_box); return TRUE; } /* released outside treeview */ if (ewidget != priv->button && ewidget != priv->box) { gtk_combo_box_popdown (combo_box); return TRUE; } return FALSE; } /* select something cool */ ret = gtk_tree_view_get_path_at_pos (GTK_TREE_VIEW (priv->tree_view), event->x, event->y, &path, NULL, NULL, NULL); if (!ret) return TRUE; /* clicked outside window? */ gtk_tree_model_get_iter (priv->model, &iter, path); gtk_tree_path_free (path); gtk_combo_box_popdown (combo_box); if (tree_column_row_is_sensitive (combo_box, &iter)) gtk_combo_box_set_active_iter (combo_box, &iter); return TRUE; } static gboolean gtk_combo_box_menu_key_press (GtkWidget *widget, GdkEventKey *event, gpointer data) { GtkComboBox *combo_box = GTK_COMBO_BOX (data); if (!gtk_bindings_activate_event (G_OBJECT (widget), event)) { /* The menu hasn't managed the * event, forward it to the combobox */ gtk_bindings_activate_event (G_OBJECT (combo_box), event); } return TRUE; } static gboolean gtk_combo_box_list_key_press (GtkWidget *widget, GdkEventKey *event, gpointer data) { GtkComboBox *combo_box = GTK_COMBO_BOX (data); GtkTreeIter iter; if (event->keyval == GDK_KEY_Return || event->keyval == GDK_KEY_ISO_Enter || event->keyval == GDK_KEY_KP_Enter || event->keyval == GDK_KEY_space || event->keyval == GDK_KEY_KP_Space) { GtkTreeModel *model = NULL; gtk_combo_box_popdown (combo_box); if (combo_box->priv->model) { GtkTreeSelection *sel; sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (combo_box->priv->tree_view)); if (gtk_tree_selection_get_selected (sel, &model, &iter)) gtk_combo_box_set_active_iter (combo_box, &iter); } return TRUE; } if (!gtk_bindings_activate_event (G_OBJECT (widget), event)) { /* The list hasn't managed the * event, forward it to the combobox */ gtk_bindings_activate_event (G_OBJECT (combo_box), event); } return TRUE; } static void gtk_combo_box_list_auto_scroll (GtkComboBox *combo_box, gint x, gint y) { GtkAdjustment *adj; GtkAllocation allocation; GtkWidget *tree_view = combo_box->priv->tree_view; gdouble value; gtk_widget_get_allocation (tree_view, &allocation); adj = gtk_scrolled_window_get_hadjustment (GTK_SCROLLED_WINDOW (combo_box->priv->scrolled_window)); if (adj && gtk_adjustment_get_upper (adj) - gtk_adjustment_get_lower (adj) > gtk_adjustment_get_page_size (adj)) { if (x <= allocation.x && gtk_adjustment_get_lower (adj) < gtk_adjustment_get_value (adj)) { value = gtk_adjustment_get_value (adj) - (allocation.x - x + 1); gtk_adjustment_set_value (adj, value); } else if (x >= allocation.x + allocation.width && gtk_adjustment_get_upper (adj) - gtk_adjustment_get_page_size (adj) > gtk_adjustment_get_value (adj)) { value = gtk_adjustment_get_value (adj) + (x - allocation.x - allocation.width + 1); gtk_adjustment_set_value (adj, MAX (value, 0.0)); } } adj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (combo_box->priv->scrolled_window)); if (adj && gtk_adjustment_get_upper (adj) - gtk_adjustment_get_lower (adj) > gtk_adjustment_get_page_size (adj)) { if (y <= allocation.y && gtk_adjustment_get_lower (adj) < gtk_adjustment_get_value (adj)) { value = gtk_adjustment_get_value (adj) - (allocation.y - y + 1); gtk_adjustment_set_value (adj, value); } else if (y >= allocation.height && gtk_adjustment_get_upper (adj) - gtk_adjustment_get_page_size (adj) > gtk_adjustment_get_value (adj)) { value = gtk_adjustment_get_value (adj) + (y - allocation.height + 1); gtk_adjustment_set_value (adj, MAX (value, 0.0)); } } } static gboolean gtk_combo_box_list_scroll_timeout (GtkComboBox *combo_box) { GtkComboBoxPrivate *priv = combo_box->priv; gint x, y; if (priv->auto_scroll) { gdk_window_get_device_position (gtk_widget_get_window (priv->tree_view), priv->grab_pointer, &x, &y, NULL); gtk_combo_box_list_auto_scroll (combo_box, x, y); } return TRUE; } static gboolean gtk_combo_box_list_enter_notify (GtkWidget *widget, GdkEventCrossing *event, gpointer data) { GtkComboBox *combo_box = GTK_COMBO_BOX (data); combo_box->priv->auto_scroll = TRUE; return TRUE; } static gboolean gtk_combo_box_list_select_func (GtkTreeSelection *selection, GtkTreeModel *model, GtkTreePath *path, gboolean path_currently_selected, gpointer data) { GList *list, *columns; gboolean sensitive = FALSE; columns = gtk_tree_view_get_columns (gtk_tree_selection_get_tree_view (selection)); for (list = columns; list && !sensitive; list = list->next) { GList *cells, *cell; gboolean cell_sensitive, cell_visible; GtkTreeIter iter; GtkTreeViewColumn *column = GTK_TREE_VIEW_COLUMN (list->data); if (!gtk_tree_view_column_get_visible (column)) continue; gtk_tree_model_get_iter (model, &iter, path); gtk_tree_view_column_cell_set_cell_data (column, model, &iter, FALSE, FALSE); cell = cells = gtk_cell_layout_get_cells (GTK_CELL_LAYOUT (column)); while (cell) { g_object_get (cell->data, "sensitive", &cell_sensitive, "visible", &cell_visible, NULL); if (cell_visible && cell_sensitive) break; cell = cell->next; } g_list_free (cells); sensitive = cell_sensitive; } g_list_free (columns); return sensitive; } static void gtk_combo_box_list_row_changed (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data) { /* XXX Do nothing ? */ } /* * GtkCellLayout implementation */ static GtkCellArea * gtk_combo_box_cell_layout_get_area (GtkCellLayout *cell_layout) { GtkComboBox *combo = GTK_COMBO_BOX (cell_layout); GtkComboBoxPrivate *priv = combo->priv; if (G_UNLIKELY (!priv->area)) { priv->area = gtk_cell_area_box_new (); g_object_ref_sink (priv->area); } return priv->area; } /* * public API */ /** * gtk_combo_box_new: * * Creates a new empty #GtkComboBox. * * 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_area: * @area: the #GtkCellArea to use to layout cell renderers * * Creates a new empty #GtkComboBox using @area to layout cells. * * Return value: A new #GtkComboBox. */ GtkWidget * gtk_combo_box_new_with_area (GtkCellArea *area) { return g_object_new (GTK_TYPE_COMBO_BOX, "cell-area", area, NULL); } /** * gtk_combo_box_new_with_area_and_entry: * @area: the #GtkCellArea to use to layout cell renderers * * Creates a new empty #GtkComboBox with an entry. * * The new combo box will use @area to layout cells. * * Return value: A new #GtkComboBox. */ GtkWidget * gtk_combo_box_new_with_area_and_entry (GtkCellArea *area) { return g_object_new (GTK_TYPE_COMBO_BOX, "has-entry", TRUE, "cell-area", area, NULL); } /** * gtk_combo_box_new_with_entry: * * Creates a new empty #GtkComboBox with an entry. * * Return value: A new #GtkComboBox. */ GtkWidget * gtk_combo_box_new_with_entry (void) { return g_object_new (GTK_TYPE_COMBO_BOX, "has-entry", TRUE, NULL); } /** * gtk_combo_box_new_with_model: * @model: A #GtkTreeModel. * * Creates a new #GtkComboBox with the model initialized to @model. * * Return value: A new #GtkComboBox. * * Since: 2.4 */ GtkWidget * gtk_combo_box_new_with_model (GtkTreeModel *model) { GtkComboBox *combo_box; g_return_val_if_fail (GTK_IS_TREE_MODEL (model), NULL); combo_box = g_object_new (GTK_TYPE_COMBO_BOX, "model", model, NULL); return GTK_WIDGET (combo_box); } /** * gtk_combo_box_new_with_model_and_entry: * @model: A #GtkTreeModel * * Creates a new empty #GtkComboBox with an entry * and with the model initialized to @model. * * Return value: A new #GtkComboBox */ GtkWidget * gtk_combo_box_new_with_model_and_entry (GtkTreeModel *model) { return g_object_new (GTK_TYPE_COMBO_BOX, "has-entry", TRUE, "model", model, NULL); } /** * gtk_combo_box_get_wrap_width: * @combo_box: A #GtkComboBox * * Returns the wrap width which is used to determine the number of columns * for the popup menu. If the wrap width is larger than 1, the combo box * is in table mode. * * Returns: the wrap width. * * Since: 2.6 */ gint gtk_combo_box_get_wrap_width (GtkComboBox *combo_box) { g_return_val_if_fail (GTK_IS_COMBO_BOX (combo_box), -1); return combo_box->priv->wrap_width; } /** * gtk_combo_box_set_wrap_width: * @combo_box: A #GtkComboBox * @width: Preferred number of columns * * Sets the wrap width of @combo_box to be @width. The wrap width is basically * the preferred number of columns when you want the popup to be layed out * in a table. * * Since: 2.4 */ void gtk_combo_box_set_wrap_width (GtkComboBox *combo_box, gint width) { GtkComboBoxPrivate *priv; g_return_if_fail (GTK_IS_COMBO_BOX (combo_box)); g_return_if_fail (width >= 0); priv = combo_box->priv; if (width != priv->wrap_width) { priv->wrap_width = width; gtk_combo_box_check_appearance (combo_box); if (GTK_IS_TREE_MENU (priv->popup_widget)) _gtk_tree_menu_set_wrap_width (GTK_TREE_MENU (priv->popup_widget), priv->wrap_width); g_object_notify (G_OBJECT (combo_box), "wrap-width"); } } /** * gtk_combo_box_get_row_span_column: * @combo_box: A #GtkComboBox * * Returns the column with row span information for @combo_box. * * Returns: the row span column. * * Since: 2.6 */ gint gtk_combo_box_get_row_span_column (GtkComboBox *combo_box) { g_return_val_if_fail (GTK_IS_COMBO_BOX (combo_box), -1); return combo_box->priv->row_column; } /** * gtk_combo_box_set_row_span_column: * @combo_box: A #GtkComboBox. * @row_span: A column in the model passed during construction. * * Sets the column with row span information for @combo_box to be @row_span. * The row span column contains integers which indicate how many rows * an item should span. * * Since: 2.4 */ void gtk_combo_box_set_row_span_column (GtkComboBox *combo_box, gint row_span) { GtkComboBoxPrivate *priv; gint col; g_return_if_fail (GTK_IS_COMBO_BOX (combo_box)); priv = combo_box->priv; col = gtk_tree_model_get_n_columns (priv->model); g_return_if_fail (row_span >= -1 && row_span < col); if (row_span != priv->row_column) { priv->row_column = row_span; if (GTK_IS_TREE_MENU (priv->popup_widget)) _gtk_tree_menu_set_row_span_column (GTK_TREE_MENU (priv->popup_widget), priv->row_column); g_object_notify (G_OBJECT (combo_box), "row-span-column"); } } /** * gtk_combo_box_get_column_span_column: * @combo_box: A #GtkComboBox * * Returns the column with column span information for @combo_box. * * Returns: the column span column. * * Since: 2.6 */ gint gtk_combo_box_get_column_span_column (GtkComboBox *combo_box) { g_return_val_if_fail (GTK_IS_COMBO_BOX (combo_box), -1); return combo_box->priv->col_column; } /** * gtk_combo_box_set_column_span_column: * @combo_box: A #GtkComboBox * @column_span: A column in the model passed during construction * * Sets the column with column span information for @combo_box to be * @column_span. The column span column contains integers which indicate * how many columns an item should span. * * Since: 2.4 */ void gtk_combo_box_set_column_span_column (GtkComboBox *combo_box, gint column_span) { GtkComboBoxPrivate *priv; gint col; g_return_if_fail (GTK_IS_COMBO_BOX (combo_box)); priv = combo_box->priv; col = gtk_tree_model_get_n_columns (priv->model); g_return_if_fail (column_span >= -1 && column_span < col); if (column_span != priv->col_column) { priv->col_column = column_span; if (GTK_IS_TREE_MENU (priv->popup_widget)) _gtk_tree_menu_set_column_span_column (GTK_TREE_MENU (priv->popup_widget), priv->col_column); g_object_notify (G_OBJECT (combo_box), "column-span-column"); } } /** * gtk_combo_box_get_active: * @combo_box: A #GtkComboBox * * Returns the index of the currently active item, or -1 if there's no * active item. If the model is a non-flat treemodel, and the active item * is not an immediate child of the root of the tree, this function returns * gtk_tree_path_get_indices (path)[0], where * path is the #GtkTreePath of the active item. * * 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"); if (combo_box->priv->id_column >= 0) g_object_notify (G_OBJECT (combo_box), "active-id"); } /** * gtk_combo_box_get_active_iter: * @combo_box: A #GtkComboBox * @iter: (out): The uninitialized #GtkTreeIter * * Sets @iter to point to the current active item, if it exists. * * Return value: %TRUE, if @iter was set * * Since: 2.4 */ gboolean gtk_combo_box_get_active_iter (GtkComboBox *combo_box, GtkTreeIter *iter) { GtkTreePath *path; gboolean result; g_return_val_if_fail (GTK_IS_COMBO_BOX (combo_box), FALSE); if (!gtk_tree_row_reference_valid (combo_box->priv->active_row)) return FALSE; path = gtk_tree_row_reference_get_path (combo_box->priv->active_row); result = gtk_tree_model_get_iter (combo_box->priv->model, iter, path); gtk_tree_path_free (path); return result; } /** * gtk_combo_box_set_active_iter: * @combo_box: A #GtkComboBox * @iter: (allow-none): The #GtkTreeIter, or %NULL * * Sets the current active item to be the one referenced by @iter, or * unsets the active item if @iter is %NULL. * * Since: 2.4 */ void gtk_combo_box_set_active_iter (GtkComboBox *combo_box, GtkTreeIter *iter) { GtkTreePath *path = NULL; g_return_if_fail (GTK_IS_COMBO_BOX (combo_box)); if (iter) path = gtk_tree_model_get_path (gtk_combo_box_get_model (combo_box), iter); gtk_combo_box_set_active_internal (combo_box, path); gtk_tree_path_free (path); } /** * gtk_combo_box_set_model: * @combo_box: A #GtkComboBox * @model: (allow-none): A #GtkTreeModel * * Sets the model used by @combo_box to be @model. Will unset a previously set * model (if applicable). If model is %NULL, then it will unset the model. * * Note that this function does not clear the cell renderers, you have to * call gtk_cell_layout_clear() yourself if you need to set up different * cell renderers for the new model. * * Since: 2.4 */ void gtk_combo_box_set_model (GtkComboBox *combo_box, GtkTreeModel *model) { g_return_if_fail (GTK_IS_COMBO_BOX (combo_box)); g_return_if_fail (model == NULL || GTK_IS_TREE_MODEL (model)); if (model == combo_box->priv->model) return; gtk_combo_box_unset_model (combo_box); if (model == NULL) goto out; combo_box->priv->model = model; g_object_ref (combo_box->priv->model); combo_box->priv->inserted_id = g_signal_connect (combo_box->priv->model, "row-inserted", G_CALLBACK (gtk_combo_box_model_row_inserted), combo_box); combo_box->priv->deleted_id = g_signal_connect (combo_box->priv->model, "row-deleted", G_CALLBACK (gtk_combo_box_model_row_deleted), combo_box); combo_box->priv->reordered_id = g_signal_connect (combo_box->priv->model, "rows-reordered", G_CALLBACK (gtk_combo_box_model_rows_reordered), combo_box); combo_box->priv->changed_id = g_signal_connect (combo_box->priv->model, "row-changed", G_CALLBACK (gtk_combo_box_model_row_changed), combo_box); if (combo_box->priv->tree_view) { /* list mode */ gtk_tree_view_set_model (GTK_TREE_VIEW (combo_box->priv->tree_view), combo_box->priv->model); gtk_combo_box_list_popup_resize (combo_box); } if (GTK_IS_TREE_MENU (combo_box->priv->popup_widget)) { /* menu mode */ _gtk_tree_menu_set_model (GTK_TREE_MENU (combo_box->priv->popup_widget), combo_box->priv->model); } if (combo_box->priv->cell_view) gtk_cell_view_set_model (GTK_CELL_VIEW (combo_box->priv->cell_view), combo_box->priv->model); if (combo_box->priv->active != -1) { /* If an index was set in advance, apply it now */ gtk_combo_box_set_active (combo_box, combo_box->priv->active); combo_box->priv->active = -1; } out: gtk_combo_box_update_sensitivity (combo_box); g_object_notify (G_OBJECT (combo_box), "model"); } /** * gtk_combo_box_get_model: * @combo_box: A #GtkComboBox * * Returns the #GtkTreeModel which is acting as data source for @combo_box. * * 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; } static void gtk_combo_box_real_move_active (GtkComboBox *combo_box, GtkScrollType scroll) { GtkTreeIter iter; GtkTreeIter new_iter; gboolean active_iter; gboolean found; if (!combo_box->priv->model) { gtk_widget_error_bell (GTK_WIDGET (combo_box)); return; } active_iter = gtk_combo_box_get_active_iter (combo_box, &iter); switch (scroll) { case GTK_SCROLL_STEP_BACKWARD: case GTK_SCROLL_STEP_UP: case GTK_SCROLL_STEP_LEFT: if (active_iter) { found = tree_prev (combo_box, combo_box->priv->model, &iter, &new_iter, FALSE); break; } /* else fall through */ case GTK_SCROLL_PAGE_FORWARD: case GTK_SCROLL_PAGE_DOWN: case GTK_SCROLL_PAGE_RIGHT: case GTK_SCROLL_END: found = tree_last (combo_box, combo_box->priv->model, &new_iter, FALSE); break; case GTK_SCROLL_STEP_FORWARD: case GTK_SCROLL_STEP_DOWN: case GTK_SCROLL_STEP_RIGHT: if (active_iter) { found = tree_next (combo_box, combo_box->priv->model, &iter, &new_iter, FALSE); break; } /* else fall through */ case GTK_SCROLL_PAGE_BACKWARD: case GTK_SCROLL_PAGE_UP: case GTK_SCROLL_PAGE_LEFT: case GTK_SCROLL_START: found = tree_first (combo_box, combo_box->priv->model, &new_iter, FALSE); break; default: return; } if (found && active_iter) { GtkTreePath *old_path; GtkTreePath *new_path; old_path = gtk_tree_model_get_path (combo_box->priv->model, &iter); new_path = gtk_tree_model_get_path (combo_box->priv->model, &new_iter); if (gtk_tree_path_compare (old_path, new_path) == 0) found = FALSE; gtk_tree_path_free (old_path); gtk_tree_path_free (new_path); } if (found) { gtk_combo_box_set_active_iter (combo_box, &new_iter); } else { gtk_widget_error_bell (GTK_WIDGET (combo_box)); } } static gboolean gtk_combo_box_mnemonic_activate (GtkWidget *widget, gboolean group_cycling) { GtkComboBox *combo_box = GTK_COMBO_BOX (widget); if (combo_box->priv->has_entry) { GtkWidget* child; child = gtk_bin_get_child (GTK_BIN (combo_box)); if (child) gtk_widget_grab_focus (child); } else gtk_widget_grab_focus (combo_box->priv->button); return TRUE; } static void gtk_combo_box_grab_focus (GtkWidget *widget) { GtkComboBox *combo_box = GTK_COMBO_BOX (widget); if (combo_box->priv->has_entry) { GtkWidget *child; child = gtk_bin_get_child (GTK_BIN (combo_box)); if (child) gtk_widget_grab_focus (child); } else gtk_widget_grab_focus (combo_box->priv->button); } static void gtk_combo_box_destroy (GtkWidget *widget) { GtkComboBox *combo_box = GTK_COMBO_BOX (widget); if (combo_box->priv->popup_idle_id > 0) { g_source_remove (combo_box->priv->popup_idle_id); combo_box->priv->popup_idle_id = 0; } gtk_combo_box_popdown (combo_box); if (combo_box->priv->row_separator_destroy) combo_box->priv->row_separator_destroy (combo_box->priv->row_separator_data); combo_box->priv->row_separator_func = NULL; combo_box->priv->row_separator_data = NULL; combo_box->priv->row_separator_destroy = NULL; GTK_WIDGET_CLASS (gtk_combo_box_parent_class)->destroy (widget); combo_box->priv->cell_view = NULL; } static void gtk_combo_box_entry_contents_changed (GtkEntry *entry, gpointer user_data) { GtkComboBox *combo_box = GTK_COMBO_BOX (user_data); /* * Fixes regression reported in bug #574059. The old functionality relied on * bug #572478. As a bugfix, we now emit the "changed" signal ourselves * when the selection was already set to -1. */ if (gtk_combo_box_get_active(combo_box) == -1) g_signal_emit_by_name (combo_box, "changed"); else gtk_combo_box_set_active (combo_box, -1); } static void gtk_combo_box_entry_active_changed (GtkComboBox *combo_box, gpointer user_data) { GtkComboBoxPrivate *priv = combo_box->priv; GtkTreeModel *model; GtkTreeIter iter; if (gtk_combo_box_get_active_iter (combo_box, &iter)) { GtkEntry *entry = GTK_ENTRY (gtk_bin_get_child (GTK_BIN (combo_box))); if (entry) { GValue value = {0,}; g_signal_handlers_block_by_func (entry, gtk_combo_box_entry_contents_changed, combo_box); model = gtk_combo_box_get_model (combo_box); gtk_tree_model_get_value (model, &iter, priv->text_column, &value); g_object_set_property (G_OBJECT (entry), "text", &value); g_value_unset (&value); g_signal_handlers_unblock_by_func (entry, gtk_combo_box_entry_contents_changed, combo_box); } } } static GObject * gtk_combo_box_constructor (GType type, guint n_construct_properties, GObjectConstructParam *construct_properties) { GObject *object; GtkComboBox *combo_box; GtkComboBoxPrivate *priv; object = G_OBJECT_CLASS (gtk_combo_box_parent_class)->constructor (type, n_construct_properties, construct_properties); combo_box = GTK_COMBO_BOX (object); priv = combo_box->priv; if (!priv->area) { priv->area = gtk_cell_area_box_new (); g_object_ref_sink (priv->area); } priv->cell_view = gtk_cell_view_new_with_context (priv->area, NULL); gtk_cell_view_set_fit_model (GTK_CELL_VIEW (priv->cell_view), TRUE); gtk_cell_view_set_model (GTK_CELL_VIEW (priv->cell_view), priv->model); gtk_widget_set_parent (priv->cell_view, GTK_WIDGET (combo_box)); _gtk_bin_set_child (GTK_BIN (combo_box), priv->cell_view); gtk_widget_show (priv->cell_view); gtk_combo_box_check_appearance (combo_box); if (priv->has_entry) { GtkWidget *entry; entry = gtk_entry_new (); gtk_widget_show (entry); gtk_container_add (GTK_CONTAINER (combo_box), entry); priv->text_renderer = gtk_cell_renderer_text_new (); gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (combo_box), priv->text_renderer, TRUE); gtk_combo_box_set_active (GTK_COMBO_BOX (combo_box), -1); g_signal_connect (combo_box, "changed", G_CALLBACK (gtk_combo_box_entry_active_changed), NULL); } return object; } static void gtk_combo_box_dispose(GObject* object) { GtkComboBox *combo_box = GTK_COMBO_BOX (object); if (GTK_IS_MENU (combo_box->priv->popup_widget)) { gtk_combo_box_menu_destroy (combo_box); gtk_menu_detach (GTK_MENU (combo_box->priv->popup_widget)); combo_box->priv->popup_widget = NULL; } if (combo_box->priv->area) { g_object_unref (combo_box->priv->area); combo_box->priv->area = NULL; } if (GTK_IS_TREE_VIEW (combo_box->priv->tree_view)) gtk_combo_box_list_destroy (combo_box); if (combo_box->priv->popup_window) { gtk_widget_destroy (combo_box->priv->popup_window); combo_box->priv->popup_window = NULL; } gtk_combo_box_unset_model (combo_box); G_OBJECT_CLASS (gtk_combo_box_parent_class)->dispose (object); } static void gtk_combo_box_finalize (GObject *object) { GtkComboBox *combo_box = GTK_COMBO_BOX (object); g_free (combo_box->priv->tearoff_title); G_OBJECT_CLASS (gtk_combo_box_parent_class)->finalize (object); } static gboolean gtk_cell_editable_key_press (GtkWidget *widget, GdkEventKey *event, gpointer data) { GtkComboBox *combo_box = GTK_COMBO_BOX (data); if (event->keyval == GDK_KEY_Escape) { g_object_set (combo_box, "editing-canceled", TRUE, NULL); gtk_cell_editable_editing_done (GTK_CELL_EDITABLE (combo_box)); gtk_cell_editable_remove_widget (GTK_CELL_EDITABLE (combo_box)); return TRUE; } else if (event->keyval == GDK_KEY_Return || event->keyval == GDK_KEY_ISO_Enter || event->keyval == GDK_KEY_KP_Enter) { gtk_cell_editable_editing_done (GTK_CELL_EDITABLE (combo_box)); gtk_cell_editable_remove_widget (GTK_CELL_EDITABLE (combo_box)); return TRUE; } return FALSE; } static gboolean popdown_idle (gpointer data) { GtkComboBox *combo_box; combo_box = GTK_COMBO_BOX (data); gtk_cell_editable_editing_done (GTK_CELL_EDITABLE (combo_box)); gtk_cell_editable_remove_widget (GTK_CELL_EDITABLE (combo_box)); g_object_unref (combo_box); return FALSE; } static void popdown_handler (GtkWidget *widget, gpointer data) { 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); GtkWidget *child; combo_box->priv->is_cell_renderer = TRUE; if (combo_box->priv->cell_view) { g_signal_connect_object (combo_box->priv->button, "key-press-event", G_CALLBACK (gtk_cell_editable_key_press), cell_editable, 0); gtk_widget_grab_focus (combo_box->priv->button); } else { child = gtk_bin_get_child (GTK_BIN (combo_box)); g_signal_connect_object (child, "key-press-event", G_CALLBACK (gtk_cell_editable_key_press), cell_editable, 0); gtk_widget_grab_focus (child); gtk_widget_set_can_focus (combo_box->priv->button, FALSE); } /* we do the immediate popup only for the optionmenu-like * appearance */ if (combo_box->priv->is_cell_renderer && combo_box->priv->cell_view && !combo_box->priv->tree_view) { if (event && event->type == GDK_BUTTON_PRESS) { GdkEventButton *event_button = (GdkEventButton *)event; combo_box->priv->activate_button = event_button->button; combo_box->priv->activate_time = event_button->time; } combo_box->priv->popup_idle_id = gdk_threads_add_idle (popup_idle, combo_box); } } /** * 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); if (GTK_IS_TREE_MENU (combo_box->priv->popup_widget)) _gtk_tree_menu_set_tearoff (GTK_TREE_MENU (combo_box->priv->popup_widget), combo_box->priv->add_tearoffs); g_object_notify (G_OBJECT (combo_box), "add-tearoffs"); } } /** * gtk_combo_box_get_title: * @combo_box: a #GtkComboBox * * Gets the current title of the menu in tearoff mode. See * gtk_combo_box_set_add_tearoffs(). * * Returns: the menu's title in tearoff mode. This is an internal copy of the * string which must not be freed. * * Since: 2.10 */ 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_set_popup_fixed_width: * @combo_box: a #GtkComboBox * @fixed: whether to use a fixed popup width * * Specifies whether the popup's width should be a fixed width * matching the allocated width of the combo box. * * Since: 3.0 **/ void gtk_combo_box_set_popup_fixed_width (GtkComboBox *combo_box, gboolean fixed) { g_return_if_fail (GTK_IS_COMBO_BOX (combo_box)); if (combo_box->priv->popup_fixed_width != fixed) { combo_box->priv->popup_fixed_width = fixed; g_object_notify (G_OBJECT (combo_box), "popup-fixed-width"); } } /** * gtk_combo_box_get_popup_fixed_width: * @combo_box: a #GtkComboBox * * Gets whether the popup uses a fixed width matching * the allocated width of the combo box. * * Returns: %TRUE if the popup uses a fixed width * * Since: 3.0 **/ gboolean gtk_combo_box_get_popup_fixed_width (GtkComboBox *combo_box) { g_return_val_if_fail (GTK_IS_COMBO_BOX (combo_box), FALSE); return combo_box->priv->popup_fixed_width; } /** * gtk_combo_box_get_popup_accessible: * @combo_box: a #GtkComboBox * * Gets the accessible object corresponding to the combo box's popup. * * This function is mostly intended for use by accessibility technologies; * applications should have little use for it. * * Returns: (transfer none): the accessible object corresponding * to the combo box's popup. * * Since: 2.6 */ AtkObject* gtk_combo_box_get_popup_accessible (GtkComboBox *combo_box) { AtkObject *atk_obj; g_return_val_if_fail (GTK_IS_COMBO_BOX (combo_box), NULL); if (combo_box->priv->popup_widget) { atk_obj = gtk_widget_get_accessible (combo_box->priv->popup_widget); return atk_obj; } return NULL; } /** * gtk_combo_box_get_row_separator_func: (skip) * @combo_box: a #GtkComboBox * * Returns the current row separator function. * * 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; /* Provoke the underlying treeview/menu to rebuild themselves with the new separator func */ if (combo_box->priv->tree_view) { gtk_tree_view_set_model (GTK_TREE_VIEW (combo_box->priv->tree_view), NULL); gtk_tree_view_set_model (GTK_TREE_VIEW (combo_box->priv->tree_view), combo_box->priv->model); } if (GTK_IS_TREE_MENU (combo_box->priv->popup_widget)) { _gtk_tree_menu_set_model (GTK_TREE_MENU (combo_box->priv->popup_widget), NULL); _gtk_tree_menu_set_model (GTK_TREE_MENU (combo_box->priv->popup_widget), combo_box->priv->model); } gtk_widget_queue_draw (GTK_WIDGET (combo_box)); } /** * gtk_combo_box_set_button_sensitivity: * @combo_box: a #GtkComboBox * @sensitivity: specify the sensitivity of the dropdown button * * Sets whether the dropdown button of the combo box should be * always sensitive (%GTK_SENSITIVITY_ON), never sensitive (%GTK_SENSITIVITY_OFF) * or only if there is at least one item to display (%GTK_SENSITIVITY_AUTO). * * Since: 2.14 **/ void gtk_combo_box_set_button_sensitivity (GtkComboBox *combo_box, GtkSensitivityType sensitivity) { g_return_if_fail (GTK_IS_COMBO_BOX (combo_box)); if (combo_box->priv->button_sensitivity != sensitivity) { combo_box->priv->button_sensitivity = sensitivity; gtk_combo_box_update_sensitivity (combo_box); g_object_notify (G_OBJECT (combo_box), "button-sensitivity"); } } /** * gtk_combo_box_get_button_sensitivity: * @combo_box: a #GtkComboBox * * Returns whether the combo box sets the dropdown button * sensitive or not when there are no items in the model. * * Return Value: %GTK_SENSITIVITY_ON if the dropdown button * is sensitive when the model is empty, %GTK_SENSITIVITY_OFF * if the button is always insensitive or * %GTK_SENSITIVITY_AUTO if it is only sensitive as long as * the model has one item to be selected. * * Since: 2.14 **/ GtkSensitivityType gtk_combo_box_get_button_sensitivity (GtkComboBox *combo_box) { g_return_val_if_fail (GTK_IS_COMBO_BOX (combo_box), FALSE); return combo_box->priv->button_sensitivity; } /** * gtk_combo_box_get_has_entry: * @combo_box: a #GtkComboBox * * Returns whether the combo box has an entry. * * Return Value: whether there is an entry in @combo_box. * * Since: 2.24 **/ gboolean gtk_combo_box_get_has_entry (GtkComboBox *combo_box) { g_return_val_if_fail (GTK_IS_COMBO_BOX (combo_box), FALSE); return combo_box->priv->has_entry; } /** * gtk_combo_box_set_entry_text_column: * @combo_box: A #GtkComboBox * @text_column: A column in @model to get the strings from for * the internal entry * * Sets the model column which @combo_box should use to get strings from * to be @text_column. The column @text_column in the model of @combo_box * must be of type %G_TYPE_STRING. * * This is only relevant if @combo_box has been created with * #GtkComboBox:has-entry as %TRUE. * * Since: 2.24 */ void gtk_combo_box_set_entry_text_column (GtkComboBox *combo_box, gint text_column) { GtkComboBoxPrivate *priv = combo_box->priv; GtkTreeModel *model; g_return_if_fail (GTK_IS_COMBO_BOX (combo_box)); model = gtk_combo_box_get_model (combo_box); g_return_if_fail (text_column >= 0); g_return_if_fail (model == NULL || text_column < gtk_tree_model_get_n_columns (model)); priv->text_column = text_column; if (priv->text_renderer != NULL) gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (combo_box), priv->text_renderer, "text", text_column, NULL); } /** * gtk_combo_box_get_entry_text_column: * @combo_box: A #GtkComboBox. * * Returns the column which @combo_box is using to get the strings * from to display in the internal entry. * * Return value: A column in the data source model of @combo_box. * * Since: 2.24 */ gint gtk_combo_box_get_entry_text_column (GtkComboBox *combo_box) { g_return_val_if_fail (GTK_IS_COMBO_BOX (combo_box), 0); return combo_box->priv->text_column; } /** * gtk_combo_box_set_focus_on_click: * @combo: a #GtkComboBox * @focus_on_click: whether the combo box grabs focus when clicked * with the mouse * * Sets whether the combo box will grab focus when it is clicked with * the mouse. Making mouse clicks not grab focus is useful in places * like toolbars where you don't want the keyboard focus removed from * the main area of the application. * * Since: 2.6 */ void gtk_combo_box_set_focus_on_click (GtkComboBox *combo_box, gboolean focus_on_click) { g_return_if_fail (GTK_IS_COMBO_BOX (combo_box)); focus_on_click = focus_on_click != FALSE; if (combo_box->priv->focus_on_click != focus_on_click) { combo_box->priv->focus_on_click = focus_on_click; if (combo_box->priv->button) gtk_button_set_focus_on_click (GTK_BUTTON (combo_box->priv->button), focus_on_click); g_object_notify (G_OBJECT (combo_box), "focus-on-click"); } } /** * gtk_combo_box_get_focus_on_click: * @combo: a #GtkComboBox * * Returns whether the combo box grabs focus when it is clicked * with the mouse. See gtk_combo_box_set_focus_on_click(). * * Return value: %TRUE if the combo box grabs focus when it is * clicked with the mouse. * * Since: 2.6 */ gboolean gtk_combo_box_get_focus_on_click (GtkComboBox *combo_box) { g_return_val_if_fail (GTK_IS_COMBO_BOX (combo_box), FALSE); return combo_box->priv->focus_on_click; } static gboolean gtk_combo_box_buildable_custom_tag_start (GtkBuildable *buildable, GtkBuilder *builder, GObject *child, const gchar *tagname, GMarkupParser *parser, gpointer *data) { if (parent_buildable_iface->custom_tag_start (buildable, builder, child, tagname, parser, data)) return TRUE; return _gtk_cell_layout_buildable_custom_tag_start (buildable, builder, child, tagname, parser, data); } static void gtk_combo_box_buildable_custom_tag_end (GtkBuildable *buildable, GtkBuilder *builder, GObject *child, const gchar *tagname, gpointer *data) { if (!_gtk_cell_layout_buildable_custom_tag_end (buildable, builder, child, tagname, data)) parent_buildable_iface->custom_tag_end (buildable, builder, child, tagname, data); } static GObject * gtk_combo_box_buildable_get_internal_child (GtkBuildable *buildable, GtkBuilder *builder, const gchar *childname) { GtkComboBox *combo_box = GTK_COMBO_BOX (buildable); if (combo_box->priv->has_entry && strcmp (childname, "entry") == 0) return G_OBJECT (gtk_bin_get_child (GTK_BIN (buildable))); return parent_buildable_iface->get_internal_child (buildable, builder, childname); } static void gtk_combo_box_get_preferred_width (GtkWidget *widget, gint *minimum_size, gint *natural_size) { GtkComboBox *combo_box = GTK_COMBO_BOX (widget); GtkComboBoxPrivate *priv = combo_box->priv; gint focus_width, focus_pad; gint font_size, arrow_size; PangoContext *context; PangoFontMetrics *metrics; PangoFontDescription *font_desc; GtkWidget *child; gint minimum_width = 0, natural_width = 0; gint child_min, child_nat; GtkStyleContext *style_context; GtkStateFlags state; GtkBorder padding; gfloat arrow_scaling; child = gtk_bin_get_child (GTK_BIN (widget)); /* common */ gtk_widget_get_preferred_width (child, &child_min, &child_nat); gtk_widget_style_get (GTK_WIDGET (widget), "focus-line-width", &focus_width, "focus-padding", &focus_pad, "arrow-size", &arrow_size, "arrow-scaling", &arrow_scaling, NULL); style_context = gtk_widget_get_style_context (widget); state = gtk_widget_get_state_flags (widget); get_widget_padding (widget, &padding); gtk_style_context_get (style_context, state, "font", &font_desc, NULL); context = gtk_widget_get_pango_context (GTK_WIDGET (widget)); metrics = pango_context_get_metrics (context, font_desc, pango_context_get_language (context)); font_size = PANGO_PIXELS (pango_font_metrics_get_ascent (metrics) + pango_font_metrics_get_descent (metrics)); pango_font_metrics_unref (metrics); pango_font_description_free (font_desc); arrow_size = MAX (arrow_size, font_size) * arrow_scaling; gtk_widget_set_size_request (priv->arrow, arrow_size, arrow_size); if (!priv->tree_view) { /* menu mode */ if (priv->cell_view) { gint sep_width, arrow_width; gint border_width, xpad; GtkBorder button_padding; border_width = gtk_container_get_border_width (GTK_CONTAINER (combo_box)); get_widget_padding (priv->button, &button_padding); gtk_widget_get_preferred_width (priv->separator, &sep_width, NULL); gtk_widget_get_preferred_width (priv->arrow, &arrow_width, NULL); xpad = 2 * (border_width + focus_width + focus_pad) + button_padding.left + button_padding.right + padding.left + padding.right; minimum_width = child_min + sep_width + arrow_width + xpad; natural_width = child_nat + sep_width + arrow_width + xpad; } else { gint but_width, but_nat_width; gtk_widget_get_preferred_width (priv->button, &but_width, &but_nat_width); minimum_width = child_min + but_width; natural_width = child_nat + but_nat_width; } } else { /* list mode */ gint button_width, button_nat_width; /* sample + frame */ minimum_width = child_min; natural_width = child_nat; minimum_width += 2 * focus_width; natural_width += 2 * focus_width; if (priv->cell_view_frame) { if (priv->has_frame) { gint border_width, xpad; GtkBorder frame_padding; border_width = gtk_container_get_border_width (GTK_CONTAINER (priv->cell_view_frame)); get_widget_padding (priv->cell_view_frame, &frame_padding); xpad = (2 * border_width) + frame_padding.left + frame_padding.right; minimum_width += xpad; natural_width += xpad; } } /* the button */ gtk_widget_get_preferred_width (priv->button, &button_width, &button_nat_width); minimum_width += button_width; natural_width += button_nat_width; } minimum_width += padding.left + padding.right; natural_width += padding.left + padding.right; if (minimum_size) *minimum_size = minimum_width; if (natural_size) *natural_size = natural_width; } static void gtk_combo_box_get_preferred_height (GtkWidget *widget, gint *minimum_size, gint *natural_size) { gint min_width; /* Combo box is height-for-width only * (so we always just reserve enough height for the minimum width) */ GTK_WIDGET_GET_CLASS (widget)->get_preferred_width (widget, &min_width, NULL); GTK_WIDGET_GET_CLASS (widget)->get_preferred_height_for_width (widget, min_width, minimum_size, natural_size); } static void gtk_combo_box_get_preferred_width_for_height (GtkWidget *widget, gint avail_size, gint *minimum_size, gint *natural_size) { /* Combo box is height-for-width only * (so we assume we always reserved enough height for the minimum width) */ GTK_WIDGET_GET_CLASS (widget)->get_preferred_width (widget, minimum_size, natural_size); } static void gtk_combo_box_get_preferred_height_for_width (GtkWidget *widget, gint avail_size, gint *minimum_size, gint *natural_size) { GtkComboBox *combo_box = GTK_COMBO_BOX (widget); GtkComboBoxPrivate *priv = combo_box->priv; gint focus_width, focus_pad; gint min_height = 0, nat_height = 0; gint size; GtkWidget *child; GtkBorder padding; gtk_widget_style_get (GTK_WIDGET (widget), "focus-line-width", &focus_width, "focus-padding", &focus_pad, NULL); child = gtk_bin_get_child (GTK_BIN (widget)); get_widget_padding (widget, &padding); size = avail_size; if (!priv->tree_view) { /* menu mode */ if (priv->cell_view) { /* calculate x/y padding and separator/arrow size */ gint sep_width, arrow_width, sep_height, arrow_height; gint border_width, xpad, ypad; GtkBorder button_padding; border_width = gtk_container_get_border_width (GTK_CONTAINER (combo_box)); get_widget_padding (priv->button, &button_padding); gtk_widget_get_preferred_width (priv->separator, &sep_width, NULL); gtk_widget_get_preferred_width (priv->arrow, &arrow_width, NULL); gtk_widget_get_preferred_height_for_width (priv->separator, sep_width, &sep_height, NULL); gtk_widget_get_preferred_height_for_width (priv->arrow, arrow_width, &arrow_height, NULL); xpad = 2 * (border_width + focus_width + focus_pad) + button_padding.left + button_padding.right; ypad = 2 * (border_width + focus_width + focus_pad) + button_padding.top + button_padding.bottom; size -= sep_width + arrow_width + xpad; /* Get height-for-width of the child widget, usually a GtkCellArea calculating * and fitting the whole treemodel */ gtk_widget_get_preferred_height_for_width (child, size, &min_height, &nat_height); arrow_height = MAX (arrow_height, sep_height); min_height = MAX (min_height, arrow_height); nat_height = MAX (nat_height, arrow_height); min_height += ypad; nat_height += ypad; } else { /* there is a custom child widget inside (no priv->cell_view) */ gint but_width, but_height; gtk_widget_get_preferred_width (priv->button, &but_width, NULL); gtk_widget_get_preferred_height_for_width (priv->button, but_width, &but_height, NULL); size -= but_width; /* Get height-for-width of the child widget, usually a GtkCellArea calculating * and fitting the whole treemodel */ gtk_widget_get_preferred_height_for_width (child, size, &min_height, &nat_height); min_height = MAX (min_height, but_height); nat_height = MAX (nat_height, but_height); } } else { /* list mode */ gint but_width, but_height; gint xpad = 0, ypad = 0; gtk_widget_get_preferred_width (priv->button, &but_width, NULL); gtk_widget_get_preferred_height_for_width (priv->button, but_width, &but_height, NULL); if (priv->cell_view_frame && priv->has_frame) { GtkBorder frame_padding; gint border_width; border_width = gtk_container_get_border_width (GTK_CONTAINER (priv->cell_view_frame)); get_widget_padding (GTK_WIDGET (priv->cell_view_frame), &frame_padding); xpad = (2 * border_width) + padding.left + frame_padding.right; ypad = (2 * border_width) + padding.top + frame_padding.bottom; } size -= but_width; size -= 2 * focus_width; size -= xpad; /* Get height-for-width of the child widget, usually a GtkCellArea calculating * and fitting the whole treemodel */ gtk_widget_get_preferred_height_for_width (child, size, &min_height, &nat_height); min_height = MAX (min_height, but_height); nat_height = MAX (nat_height, but_height); min_height += ypad; nat_height += ypad; } min_height += padding.top + padding.bottom; nat_height += padding.top + padding.bottom; if (minimum_size) *minimum_size = min_height; if (natural_size) *natural_size = nat_height; } /** * gtk_combo_box_set_id_column: * @combo_box: A #GtkComboBox * @id_column: A column in @model to get string IDs for values from * * Sets the model column which @combo_box should use to get string IDs * for values from. The column @id_column in the model of @combo_box * must be of type %G_TYPE_STRING. * * Since: 3.0 */ void gtk_combo_box_set_id_column (GtkComboBox *combo_box, gint id_column) { GtkComboBoxPrivate *priv = combo_box->priv; GtkTreeModel *model; g_return_if_fail (GTK_IS_COMBO_BOX (combo_box)); if (id_column != priv->id_column) { model = gtk_combo_box_get_model (combo_box); g_return_if_fail (id_column >= 0); g_return_if_fail (model == NULL || id_column < gtk_tree_model_get_n_columns (model)); priv->id_column = id_column; g_object_notify (G_OBJECT (combo_box), "id-column"); g_object_notify (G_OBJECT (combo_box), "active-id"); } } /** * gtk_combo_box_get_id_column: * @combo_box: A #GtkComboBox * * Returns the column which @combo_box is using to get string IDs * for values from. * * Return value: A column in the data source model of @combo_box. * * Since: 3.0 */ gint gtk_combo_box_get_id_column (GtkComboBox *combo_box) { g_return_val_if_fail (GTK_IS_COMBO_BOX (combo_box), 0); return combo_box->priv->id_column; } /** * gtk_combo_box_get_active_id: * @combo_box: a #GtkComboBox * * Returns the ID of the active row of @combo_box. This value is taken * from the active row and the column specified by the #GtkComboBox:id-column * property of @combo_box (see gtk_combo_box_set_id_column()). * * The returned value is an interned string which means that you can * compare the pointer by value to other interned strings and that you * must not free it. * * If the #GtkComboBox:id-column property of @combo_box is not set, or if * no row is active, or if the active row has a %NULL ID value, then %NULL * is returned. * * Return value: the ID of the active row, or %NULL * * Since: 3.0 **/ const gchar * gtk_combo_box_get_active_id (GtkComboBox *combo_box) { GtkTreeModel *model; GtkTreeIter iter; gint column; g_return_val_if_fail (GTK_IS_COMBO_BOX (combo_box), 0); column = combo_box->priv->id_column; if (column < 0) return NULL; model = gtk_combo_box_get_model (combo_box); g_return_val_if_fail (gtk_tree_model_get_column_type (model, column) == G_TYPE_STRING, NULL); if (gtk_combo_box_get_active_iter (combo_box, &iter)) { const gchar *interned; gchar *id; gtk_tree_model_get (model, &iter, column, &id, -1); interned = g_intern_string (id); g_free (id); return interned; } return NULL; } /** * gtk_combo_box_set_active_id: * @combo_box: a #GtkComboBox * @active_id: (allow-none): the ID of the row to select, or %NULL * * Changes the active row of @combo_box to the one that has an ID equal to * @active_id, or unsets the active row if @active_id is %NULL. Rows having * a %NULL ID string cannot be made active by this function. * * If the #GtkComboBox:id-column property of @combo_box is unset or if no * row has the given ID then the function does nothing and returns %FALSE. * * Returns: %TRUE if a row with a matching ID was found. If a %NULL * @active_id was given to unset the active row, the function * always returns %TRUE. * * Since: 3.0 **/ gboolean gtk_combo_box_set_active_id (GtkComboBox *combo_box, const gchar *active_id) { GtkTreeModel *model; GtkTreeIter iter; gboolean match = FALSE; gint column; g_return_val_if_fail (GTK_IS_COMBO_BOX (combo_box), FALSE); if (active_id == NULL) { gtk_combo_box_set_active (combo_box, -1); return TRUE; /* active row was successfully unset */ } column = combo_box->priv->id_column; if (column < 0) return FALSE; model = gtk_combo_box_get_model (combo_box); g_return_val_if_fail (gtk_tree_model_get_column_type (model, column) == G_TYPE_STRING, FALSE); if (gtk_tree_model_get_iter_first (model, &iter)) do { gchar *id; gtk_tree_model_get (model, &iter, column, &id, -1); if (id != NULL) match = strcmp (id, active_id) == 0; g_free (id); if (match) { gtk_combo_box_set_active_iter (combo_box, &iter); break; } } while (gtk_tree_model_iter_next (model, &iter)); return match; }