/* GTK - The GIMP Toolkit * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald * GtkToolbar copyright (C) Federico Mena * * Copyright (C) 2002 Anders Carlsson * Copyright (C) 2002 James Henstridge * Copyright (C) 2003, 2004 Soeren Sandmann * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library. If not, see . */ /* * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS * file for a list of people on the GTK+ Team. See the ChangeLog * files for a list of changes. These files are distributed with * GTK+ at ftp://ftp.gtk.org/pub/gtk/. */ #include "config.h" #include #include #include "gtktoolbar.h" #include "gtktoolbarprivate.h" #include "gtkbindings.h" #include "gtkbox.h" #include "gtkcontainerprivate.h" #include "gtkcssnodeprivate.h" #include "gtkimage.h" #include "gtkintl.h" #include "gtklabel.h" #include "gtkmain.h" #include "gtkmarshalers.h" #include "gtkmenu.h" #include "gtkorientable.h" #include "gtkorientableprivate.h" #include "gtkprivate.h" #include "gtkradiobutton.h" #include "gtkradiotoolbutton.h" #include "gtkseparatormenuitem.h" #include "gtkseparatortoolitem.h" #include "gtktoolshell.h" #include "gtktypebuiltins.h" #include "gtkwidgetpath.h" #include "gtkwidgetprivate.h" #include "gtkwindowprivate.h" #include "gtkgesturemultipress.h" #include "gtkbuttonprivate.h" /** * SECTION:gtktoolbar * @Short_description: Create bars of buttons and other widgets * @Title: GtkToolbar * @See_also: #GtkToolItem * * A toolbar is created with a call to gtk_toolbar_new(). * * A toolbar can contain instances of a subclass of #GtkToolItem. To add * a #GtkToolItem to the a toolbar, use gtk_toolbar_insert(). To remove * an item from the toolbar use gtk_container_remove(). To add a button * to the toolbar, add an instance of #GtkToolButton. * * Toolbar items can be visually grouped by adding instances of * #GtkSeparatorToolItem to the toolbar. If the GtkToolbar child property * “expand” is #TRUE and the property #GtkSeparatorToolItem:draw is set to * #FALSE, the effect is to force all following items to the end of the toolbar. * * By default, a toolbar can be shrunk, upon which it will add an arrow button * to show an overflow menu offering access to any #GtkToolItem child that has * a proxy menu item. To disable this and request enough size for all children, * call gtk_toolbar_set_show_arrow() to set #GtkToolbar:show-arrow to %FALSE. * * Creating a context menu for the toolbar can be done by connecting to * the #GtkToolbar::popup-context-menu signal. * * # CSS nodes * * GtkToolbar has a single CSS node with name toolbar. */ typedef struct _ToolbarContent ToolbarContent; #define DEFAULT_SPACE_SIZE 12 #define DEFAULT_SPACE_STYLE GTK_TOOLBAR_SPACE_LINE #define SPACE_LINE_DIVISION 10.0 #define SPACE_LINE_START 2.0 #define SPACE_LINE_END 8.0 #define DEFAULT_TOOLBAR_STYLE GTK_TOOLBAR_BOTH_HORIZ #define DEFAULT_ANIMATION_STATE TRUE #define MAX_HOMOGENEOUS_N_CHARS 13 /* Items that are wider than this do not participate * in the homogeneous game. In units of * pango_font_get_estimated_char_width(). */ #define SLIDE_SPEED 600.0 /* How fast the items slide, in pixels per second */ #define ACCEL_THRESHOLD 0.18 /* After how much time in seconds will items start speeding up */ struct _GtkToolbarPrivate { GtkMenu *menu; GtkSettings *settings; GtkToolbarStyle style; GtkToolItem *highlight_tool_item; GtkWidget *arrow; GtkWidget *arrow_button; GtkAllocation prev_allocation; GList *content; GTimer *timer; GtkGesture *click_gesture; gulong settings_connection; gint idle_id; gint button_maxw; /* maximum width of homogeneous children */ gint button_maxh; /* maximum height of homogeneous children */ gint max_homogeneous_pixels; gint num_children; GtkOrientation orientation; guint animation : 1; guint is_sliding : 1; guint need_rebuild : 1; /* whether the overflow menu should be regenerated */ guint show_arrow : 1; guint style_set : 1; }; /* Properties */ enum { PROP_0, PROP_ORIENTATION, PROP_TOOLBAR_STYLE, PROP_SHOW_ARROW, PROP_TOOLTIPS, }; /* Child properties */ enum { CHILD_PROP_0, CHILD_PROP_EXPAND, CHILD_PROP_HOMOGENEOUS }; /* Signals */ enum { ORIENTATION_CHANGED, STYLE_CHANGED, POPUP_CONTEXT_MENU, FOCUS_HOME_OR_END, LAST_SIGNAL }; typedef enum { NOT_ALLOCATED, NORMAL, HIDDEN, OVERFLOWN } ItemState; static void gtk_toolbar_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec); static void gtk_toolbar_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec); static void gtk_toolbar_snapshot (GtkWidget *widget, GtkSnapshot *snapshot); static void gtk_toolbar_size_allocate (GtkWidget *widget, const GtkAllocation *allocation, int baseline, GtkAllocation *out_clip); static void gtk_toolbar_style_updated (GtkWidget *widget); static gboolean gtk_toolbar_focus (GtkWidget *widget, GtkDirectionType dir); static void gtk_toolbar_move_focus (GtkWidget *widget, GtkDirectionType dir); static void gtk_toolbar_display_changed (GtkWidget *widget, GdkDisplay *previous_display); static void gtk_toolbar_set_child_property (GtkContainer *container, GtkWidget *child, guint property_id, const GValue *value, GParamSpec *pspec); static void gtk_toolbar_get_child_property (GtkContainer *container, GtkWidget *child, guint property_id, GValue *value, GParamSpec *pspec); static void gtk_toolbar_finalize (GObject *object); static void gtk_toolbar_dispose (GObject *object); static void gtk_toolbar_add (GtkContainer *container, GtkWidget *widget); static void gtk_toolbar_remove (GtkContainer *container, GtkWidget *widget); static void gtk_toolbar_forall (GtkContainer *container, GtkCallback callback, gpointer callback_data); static GType gtk_toolbar_child_type (GtkContainer *container); static void gtk_toolbar_direction_changed (GtkWidget *widget, GtkTextDirection previous_direction); static void gtk_toolbar_orientation_changed (GtkToolbar *toolbar, GtkOrientation orientation); static void gtk_toolbar_real_style_changed (GtkToolbar *toolbar, GtkToolbarStyle style); static gboolean gtk_toolbar_focus_home_or_end (GtkToolbar *toolbar, gboolean focus_home); static void gtk_toolbar_arrow_button_press (GtkGesture *gesture, int n_press, double x, double y, GtkToolbar *toolbar); static void gtk_toolbar_arrow_button_clicked (GtkWidget *button, GtkToolbar *toolbar); static gboolean gtk_toolbar_popup_menu (GtkWidget *toolbar); static void gtk_toolbar_reconfigured (GtkToolbar *toolbar); static void gtk_toolbar_measure (GtkWidget *widget, GtkOrientation orientation, int for_size, int *minimum, int *natural, int *minimum_baseline, int *natural_baseline); static void gtk_toolbar_pressed_cb (GtkGestureMultiPress *gesture, int n_press, double x, double y, gpointer user_data); /* methods on ToolbarContent 'class' */ static ToolbarContent *toolbar_content_new_tool_item (GtkToolbar *toolbar, GtkToolItem *item, gboolean is_placeholder, gint pos); static void toolbar_content_remove (ToolbarContent *content, GtkToolbar *toolbar); static void toolbar_content_free (ToolbarContent *content); static void toolbar_content_snapshot (ToolbarContent *content, GtkContainer *container, GtkSnapshot *snapshot); static gboolean toolbar_content_visible (ToolbarContent *content, GtkToolbar *toolbar); static void toolbar_content_size_request (ToolbarContent *content, GtkToolbar *toolbar, GtkRequisition *requisition); static gboolean toolbar_content_is_homogeneous (ToolbarContent *content, GtkToolbar *toolbar); static gboolean toolbar_content_is_placeholder (ToolbarContent *content); static gboolean toolbar_content_disappearing (ToolbarContent *content); static ItemState toolbar_content_get_state (ToolbarContent *content); static gboolean toolbar_content_child_visible (ToolbarContent *content); static void toolbar_content_get_goal_allocation (ToolbarContent *content, GtkAllocation *allocation); static void toolbar_content_get_allocation (ToolbarContent *content, GtkAllocation *allocation); static void toolbar_content_set_start_allocation (ToolbarContent *content, GtkAllocation *new_start_allocation); static void toolbar_content_get_start_allocation (ToolbarContent *content, GtkAllocation *start_allocation); static gboolean toolbar_content_get_expand (ToolbarContent *content); static void toolbar_content_set_goal_allocation (ToolbarContent *content, GtkAllocation *allocation); static void toolbar_content_set_child_visible (ToolbarContent *content, GtkToolbar *toolbar, gboolean visible); static void toolbar_content_size_allocate (ToolbarContent *content, GtkAllocation *allocation); static void toolbar_content_set_state (ToolbarContent *content, ItemState new_state); static GtkWidget * toolbar_content_get_widget (ToolbarContent *content); static void toolbar_content_set_disappearing (ToolbarContent *content, gboolean disappearing); static void toolbar_content_set_size_request (ToolbarContent *content, gint width, gint height); static void toolbar_content_toolbar_reconfigured (ToolbarContent *content, GtkToolbar *toolbar); static GtkWidget * toolbar_content_retrieve_menu_item (ToolbarContent *content); static gboolean toolbar_content_has_proxy_menu_item (ToolbarContent *content); static gboolean toolbar_content_is_separator (ToolbarContent *content); static void toolbar_content_set_expand (ToolbarContent *content, gboolean expand); static void toolbar_tool_shell_iface_init (GtkToolShellIface *iface); static GtkOrientation toolbar_get_orientation (GtkToolShell *shell); static GtkToolbarStyle toolbar_get_style (GtkToolShell *shell); static void toolbar_rebuild_menu (GtkToolShell *shell); G_DEFINE_TYPE_WITH_CODE (GtkToolbar, gtk_toolbar, GTK_TYPE_CONTAINER, G_ADD_PRIVATE (GtkToolbar) G_IMPLEMENT_INTERFACE (GTK_TYPE_TOOL_SHELL, toolbar_tool_shell_iface_init) G_IMPLEMENT_INTERFACE (GTK_TYPE_ORIENTABLE, NULL)) static guint toolbar_signals[LAST_SIGNAL] = { 0 }; static void add_arrow_bindings (GtkBindingSet *binding_set, guint keysym, GtkDirectionType dir) { guint keypad_keysym = keysym - GDK_KEY_Left + GDK_KEY_KP_Left; gtk_binding_entry_add_signal (binding_set, keysym, 0, "move-focus", 1, GTK_TYPE_DIRECTION_TYPE, dir); gtk_binding_entry_add_signal (binding_set, keypad_keysym, 0, "move-focus", 1, GTK_TYPE_DIRECTION_TYPE, dir); } static void add_ctrl_tab_bindings (GtkBindingSet *binding_set, GdkModifierType modifiers, GtkDirectionType direction) { gtk_binding_entry_add_signal (binding_set, GDK_KEY_Tab, GDK_CONTROL_MASK | modifiers, "move-focus", 1, GTK_TYPE_DIRECTION_TYPE, direction); gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Tab, GDK_CONTROL_MASK | modifiers, "move-focus", 1, GTK_TYPE_DIRECTION_TYPE, direction); } static void gtk_toolbar_class_init (GtkToolbarClass *klass) { GObjectClass *gobject_class; GtkWidgetClass *widget_class; GtkContainerClass *container_class; GtkBindingSet *binding_set; gobject_class = (GObjectClass *)klass; widget_class = (GtkWidgetClass *)klass; container_class = (GtkContainerClass *)klass; gobject_class->set_property = gtk_toolbar_set_property; gobject_class->get_property = gtk_toolbar_get_property; gobject_class->finalize = gtk_toolbar_finalize; gobject_class->dispose = gtk_toolbar_dispose; widget_class->snapshot = gtk_toolbar_snapshot; widget_class->measure = gtk_toolbar_measure; widget_class->size_allocate = gtk_toolbar_size_allocate; widget_class->style_updated = gtk_toolbar_style_updated; widget_class->focus = gtk_toolbar_focus; gtk_widget_class_set_accessible_role (widget_class, ATK_ROLE_TOOL_BAR); /* need to override the base class function via override_class_handler, * because the signal slot is not available in GtkWidgetClass */ g_signal_override_class_handler ("move-focus", GTK_TYPE_TOOLBAR, G_CALLBACK (gtk_toolbar_move_focus)); widget_class->display_changed = gtk_toolbar_display_changed; widget_class->popup_menu = gtk_toolbar_popup_menu; widget_class->direction_changed = gtk_toolbar_direction_changed; container_class->add = gtk_toolbar_add; container_class->remove = gtk_toolbar_remove; container_class->forall = gtk_toolbar_forall; container_class->child_type = gtk_toolbar_child_type; container_class->get_child_property = gtk_toolbar_get_child_property; container_class->set_child_property = gtk_toolbar_set_child_property; klass->orientation_changed = gtk_toolbar_orientation_changed; klass->style_changed = gtk_toolbar_real_style_changed; /** * GtkToolbar::orientation-changed: * @toolbar: the object which emitted the signal * @orientation: the new #GtkOrientation of the toolbar * * Emitted when the orientation of the toolbar changes. */ toolbar_signals[ORIENTATION_CHANGED] = g_signal_new (I_("orientation-changed"), G_OBJECT_CLASS_TYPE (klass), G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET (GtkToolbarClass, orientation_changed), NULL, NULL, g_cclosure_marshal_VOID__ENUM, G_TYPE_NONE, 1, GTK_TYPE_ORIENTATION); /** * GtkToolbar::style-changed: * @toolbar: The #GtkToolbar which emitted the signal * @style: the new #GtkToolbarStyle of the toolbar * * Emitted when the style of the toolbar changes. */ toolbar_signals[STYLE_CHANGED] = g_signal_new (I_("style-changed"), G_OBJECT_CLASS_TYPE (klass), G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET (GtkToolbarClass, style_changed), NULL, NULL, g_cclosure_marshal_VOID__ENUM, G_TYPE_NONE, 1, GTK_TYPE_TOOLBAR_STYLE); /** * GtkToolbar::popup-context-menu: * @toolbar: the #GtkToolbar which emitted the signal * @x: the x coordinate of the point where the menu should appear * @y: the y coordinate of the point where the menu should appear * @button: the mouse button the user pressed, or -1 * * Emitted when the user right-clicks the toolbar or uses the * keybinding to display a popup menu. * * Application developers should handle this signal if they want * to display a context menu on the toolbar. The context-menu should * appear at the coordinates given by @x and @y. The mouse button * number is given by the @button parameter. If the menu was popped * up using the keybaord, @button is -1. * * Returns: return %TRUE if the signal was handled, %FALSE if not */ toolbar_signals[POPUP_CONTEXT_MENU] = g_signal_new (I_("popup-context-menu"), G_OBJECT_CLASS_TYPE (klass), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GtkToolbarClass, popup_context_menu), _gtk_boolean_handled_accumulator, NULL, _gtk_marshal_BOOLEAN__INT_INT_INT, G_TYPE_BOOLEAN, 3, G_TYPE_INT, G_TYPE_INT, G_TYPE_INT); /** * GtkToolbar::focus-home-or-end: * @toolbar: the #GtkToolbar which emitted the signal * @focus_home: %TRUE if the first item should be focused * * A keybinding signal used internally by GTK+. This signal can't * be used in application code * * Returns: %TRUE if the signal was handled, %FALSE if not */ toolbar_signals[FOCUS_HOME_OR_END] = g_signal_new_class_handler (I_("focus-home-or-end"), G_OBJECT_CLASS_TYPE (klass), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_CALLBACK (gtk_toolbar_focus_home_or_end), NULL, NULL, _gtk_marshal_BOOLEAN__BOOLEAN, G_TYPE_BOOLEAN, 1, G_TYPE_BOOLEAN); /* properties */ g_object_class_override_property (gobject_class, PROP_ORIENTATION, "orientation"); g_object_class_install_property (gobject_class, PROP_TOOLBAR_STYLE, g_param_spec_enum ("toolbar-style", P_("Toolbar Style"), P_("How to draw the toolbar"), GTK_TYPE_TOOLBAR_STYLE, DEFAULT_TOOLBAR_STYLE, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY)); g_object_class_install_property (gobject_class, PROP_SHOW_ARROW, g_param_spec_boolean ("show-arrow", P_("Show Arrow"), P_("If an arrow should be shown if the toolbar doesn’t fit"), TRUE, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY)); /* child properties */ gtk_container_class_install_child_property (container_class, CHILD_PROP_EXPAND, g_param_spec_boolean ("expand", P_("Expand"), P_("Whether the item should receive extra space when the toolbar grows"), FALSE, GTK_PARAM_READWRITE)); gtk_container_class_install_child_property (container_class, CHILD_PROP_HOMOGENEOUS, g_param_spec_boolean ("homogeneous", P_("Homogeneous"), P_("Whether the item should be the same size as other homogeneous items"), FALSE, GTK_PARAM_READWRITE)); binding_set = gtk_binding_set_by_class (klass); add_arrow_bindings (binding_set, GDK_KEY_Left, GTK_DIR_LEFT); add_arrow_bindings (binding_set, GDK_KEY_Right, GTK_DIR_RIGHT); add_arrow_bindings (binding_set, GDK_KEY_Up, GTK_DIR_UP); add_arrow_bindings (binding_set, GDK_KEY_Down, GTK_DIR_DOWN); gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Home, 0, "focus-home-or-end", 1, G_TYPE_BOOLEAN, TRUE); gtk_binding_entry_add_signal (binding_set, GDK_KEY_Home, 0, "focus-home-or-end", 1, G_TYPE_BOOLEAN, TRUE); gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_End, 0, "focus-home-or-end", 1, G_TYPE_BOOLEAN, FALSE); gtk_binding_entry_add_signal (binding_set, GDK_KEY_End, 0, "focus-home-or-end", 1, G_TYPE_BOOLEAN, FALSE); add_ctrl_tab_bindings (binding_set, 0, GTK_DIR_TAB_FORWARD); add_ctrl_tab_bindings (binding_set, GDK_SHIFT_MASK, GTK_DIR_TAB_BACKWARD); gtk_widget_class_set_css_name (widget_class, I_("toolbar")); } static void toolbar_tool_shell_iface_init (GtkToolShellIface *iface) { iface->get_orientation = toolbar_get_orientation; iface->get_style = toolbar_get_style; iface->rebuild_menu = toolbar_rebuild_menu; } static void gtk_toolbar_init (GtkToolbar *toolbar) { GtkToolbarPrivate *priv; GtkWidget *widget; widget = GTK_WIDGET (toolbar); toolbar->priv = gtk_toolbar_get_instance_private (toolbar); priv = toolbar->priv; gtk_widget_set_can_focus (widget, FALSE); gtk_widget_set_has_window (widget, FALSE); priv->orientation = GTK_ORIENTATION_HORIZONTAL; priv->style = DEFAULT_TOOLBAR_STYLE; priv->animation = DEFAULT_ANIMATION_STATE; _gtk_orientable_set_style_classes (GTK_ORIENTABLE (toolbar)); priv->arrow_button = gtk_toggle_button_new (); g_signal_connect (gtk_button_get_gesture (GTK_BUTTON (priv->arrow_button)), "pressed", G_CALLBACK (gtk_toolbar_arrow_button_press), toolbar); g_signal_connect (priv->arrow_button, "clicked", G_CALLBACK (gtk_toolbar_arrow_button_clicked), toolbar); gtk_widget_set_focus_on_click (priv->arrow_button, FALSE); priv->arrow = gtk_image_new_from_icon_name ("pan-down-symbolic"); gtk_widget_set_name (priv->arrow, "gtk-toolbar-arrow"); gtk_container_add (GTK_CONTAINER (priv->arrow_button), priv->arrow); gtk_widget_set_parent (priv->arrow_button, widget); /* which child position a drop will occur at */ priv->menu = NULL; priv->show_arrow = TRUE; priv->settings = NULL; priv->max_homogeneous_pixels = -1; priv->timer = g_timer_new (); priv->click_gesture = gtk_gesture_multi_press_new (GTK_WIDGET (toolbar)); gtk_gesture_single_set_touch_only (GTK_GESTURE_SINGLE (priv->click_gesture), FALSE); gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (priv->click_gesture), 0); gtk_event_controller_set_propagation_phase (GTK_EVENT_CONTROLLER (priv->click_gesture), GTK_PHASE_BUBBLE); g_signal_connect (priv->click_gesture, "pressed", G_CALLBACK (gtk_toolbar_pressed_cb), toolbar); } static void gtk_toolbar_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec) { GtkToolbar *toolbar = GTK_TOOLBAR (object); switch (prop_id) { case PROP_ORIENTATION: g_signal_emit (toolbar, toolbar_signals[ORIENTATION_CHANGED], 0, g_value_get_enum (value)); break; case PROP_TOOLBAR_STYLE: gtk_toolbar_set_style (toolbar, g_value_get_enum (value)); break; case PROP_SHOW_ARROW: gtk_toolbar_set_show_arrow (toolbar, g_value_get_boolean (value)); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void gtk_toolbar_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec) { GtkToolbar *toolbar = GTK_TOOLBAR (object); GtkToolbarPrivate *priv = toolbar->priv; switch (prop_id) { case PROP_ORIENTATION: g_value_set_enum (value, priv->orientation); break; case PROP_TOOLBAR_STYLE: g_value_set_enum (value, priv->style); break; case PROP_SHOW_ARROW: g_value_set_boolean (value, priv->show_arrow); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void gtk_toolbar_snapshot (GtkWidget *widget, GtkSnapshot *snapshot) { GtkToolbar *toolbar = GTK_TOOLBAR (widget); GtkToolbarPrivate *priv = toolbar->priv; GList *list; for (list = priv->content; list != NULL; list = list->next) { ToolbarContent *content = list->data; toolbar_content_snapshot (content, GTK_CONTAINER (widget), snapshot); } gtk_widget_snapshot_child (widget, priv->arrow_button, snapshot); } static void gtk_toolbar_measure (GtkWidget *widget, GtkOrientation orientation, int for_size, int *minimum, int *natural, int *minimum_baseline, int *natural_baseline) { GtkToolbar *toolbar = GTK_TOOLBAR (widget); GtkToolbarPrivate *priv = toolbar->priv; GList *list; gint max_child_height; gint max_child_width; gint max_homogeneous_child_width; gint max_homogeneous_child_height; gint homogeneous_size; gint pack_front_size; GtkRequisition arrow_requisition, min_requisition, nat_requisition; max_homogeneous_child_width = 0; max_homogeneous_child_height = 0; max_child_width = 0; max_child_height = 0; for (list = priv->content; list != NULL; list = list->next) { GtkRequisition requisition; ToolbarContent *content = list->data; if (!toolbar_content_visible (content, toolbar)) continue; toolbar_content_size_request (content, toolbar, &requisition); max_child_width = MAX (max_child_width, requisition.width); max_child_height = MAX (max_child_height, requisition.height); if (toolbar_content_is_homogeneous (content, toolbar)) { max_homogeneous_child_width = MAX (max_homogeneous_child_width, requisition.width); max_homogeneous_child_height = MAX (max_homogeneous_child_height, requisition.height); } } if (priv->orientation == GTK_ORIENTATION_HORIZONTAL) homogeneous_size = max_homogeneous_child_width; else homogeneous_size = max_homogeneous_child_height; pack_front_size = 0; for (list = priv->content; list != NULL; list = list->next) { ToolbarContent *content = list->data; guint size; if (!toolbar_content_visible (content, toolbar)) continue; if (toolbar_content_is_homogeneous (content, toolbar)) { size = homogeneous_size; } else { GtkRequisition requisition; toolbar_content_size_request (content, toolbar, &requisition); if (priv->orientation == GTK_ORIENTATION_HORIZONTAL) size = requisition.width; else size = requisition.height; } pack_front_size += size; } arrow_requisition.height = 0; arrow_requisition.width = 0; if (priv->show_arrow) gtk_widget_get_preferred_size (priv->arrow_button, &arrow_requisition, NULL); if (priv->orientation == GTK_ORIENTATION_HORIZONTAL) { nat_requisition.width = pack_front_size; nat_requisition.height = MAX (max_child_height, arrow_requisition.height); min_requisition.width = priv->show_arrow ? arrow_requisition.width : nat_requisition.width; min_requisition.height = nat_requisition.height; } else { nat_requisition.width = MAX (max_child_width, arrow_requisition.width); nat_requisition.height = pack_front_size; min_requisition.width = nat_requisition.width; min_requisition.height = priv->show_arrow ? arrow_requisition.height : nat_requisition.height; } priv->button_maxw = max_homogeneous_child_width; priv->button_maxh = max_homogeneous_child_height; if (orientation == GTK_ORIENTATION_HORIZONTAL) { *minimum = min_requisition.width; *natural = nat_requisition.width; } else { *minimum = min_requisition.height; *natural = nat_requisition.height; } } static gint position (GtkToolbar *toolbar, gint from, gint to, gdouble elapsed) { GtkToolbarPrivate *priv = toolbar->priv; gint n_pixels; if (!priv->animation) return to; if (elapsed <= ACCEL_THRESHOLD) { n_pixels = SLIDE_SPEED * elapsed; } else { /* The formula is a second degree polynomial in * @elapsed that has the line SLIDE_SPEED * @elapsed * as tangent for @elapsed == ACCEL_THRESHOLD. * This makes @n_pixels a smooth function of elapsed time. */ n_pixels = (SLIDE_SPEED / ACCEL_THRESHOLD) * elapsed * elapsed - SLIDE_SPEED * elapsed + SLIDE_SPEED * ACCEL_THRESHOLD; } if (to > from) return MIN (from + n_pixels, to); else return MAX (from - n_pixels, to); } static void compute_intermediate_allocation (GtkToolbar *toolbar, const GtkAllocation *start, const GtkAllocation *goal, GtkAllocation *intermediate) { GtkToolbarPrivate *priv = toolbar->priv; gdouble elapsed = g_timer_elapsed (priv->timer, NULL); intermediate->x = position (toolbar, start->x, goal->x, elapsed); intermediate->y = position (toolbar, start->y, goal->y, elapsed); intermediate->width = position (toolbar, start->x + start->width, goal->x + goal->width, elapsed) - intermediate->x; intermediate->height = position (toolbar, start->y + start->height, goal->y + goal->height, elapsed) - intermediate->y; } static void fixup_allocation_for_rtl (gint total_size, GtkAllocation *allocation) { allocation->x += (total_size - (2 * allocation->x + allocation->width)); } static void fixup_allocation_for_vertical (GtkAllocation *allocation) { gint tmp; tmp = allocation->x; allocation->x = allocation->y; allocation->y = tmp; tmp = allocation->width; allocation->width = allocation->height; allocation->height = tmp; } static gint get_item_size (GtkToolbar *toolbar, ToolbarContent *content) { GtkToolbarPrivate *priv = toolbar->priv; GtkRequisition requisition; toolbar_content_size_request (content, toolbar, &requisition); if (priv->orientation == GTK_ORIENTATION_HORIZONTAL) { if (toolbar_content_is_homogeneous (content, toolbar)) return priv->button_maxw; else return requisition.width; } else { if (toolbar_content_is_homogeneous (content, toolbar)) return priv->button_maxh; else return requisition.height; } } static gboolean slide_idle_handler (gpointer data) { GtkToolbar *toolbar = GTK_TOOLBAR (data); GtkToolbarPrivate *priv = toolbar->priv; GList *list; for (list = priv->content; list != NULL; list = list->next) { ToolbarContent *content = list->data; ItemState state; GtkAllocation goal_allocation; GtkAllocation allocation; gboolean cont; state = toolbar_content_get_state (content); toolbar_content_get_goal_allocation (content, &goal_allocation); toolbar_content_get_allocation (content, &allocation); cont = FALSE; if (state == NOT_ALLOCATED) { /* an unallocated item means that size allocate has to * called at least once more */ cont = TRUE; } /* An invisible item with a goal allocation of * 0 is already at its goal. */ if ((state == NORMAL || state == OVERFLOWN) && ((goal_allocation.width != 0 && goal_allocation.height != 0) || toolbar_content_child_visible (content))) { if ((goal_allocation.x != allocation.x || goal_allocation.y != allocation.y || goal_allocation.width != allocation.width || goal_allocation.height != allocation.height)) { /* An item is not in its right position yet. Note * that OVERFLOWN items do get an allocation in * gtk_toolbar_size_allocate(). This way you can see * them slide back in when you drag an item off the * toolbar. */ cont = TRUE; } } if (toolbar_content_is_placeholder (content) && toolbar_content_disappearing (content) && toolbar_content_child_visible (content)) { /* A disappearing placeholder is still visible. */ cont = TRUE; } if (cont) { gtk_widget_queue_resize_no_redraw (GTK_WIDGET (toolbar)); return TRUE; } } gtk_widget_queue_resize_no_redraw (GTK_WIDGET (toolbar)); priv->is_sliding = FALSE; priv->idle_id = 0; return FALSE; } static gboolean rect_within (GtkAllocation *a1, GtkAllocation *a2) { return (a1->x >= a2->x && a1->x + a1->width <= a2->x + a2->width && a1->y >= a2->y && a1->y + a1->height <= a2->y + a2->height); } static void gtk_toolbar_begin_sliding (GtkToolbar *toolbar) { GtkAllocation content_allocation; GtkWidget *widget = GTK_WIDGET (toolbar); GtkToolbarPrivate *priv = toolbar->priv; GList *list; gint cur_x; gint cur_y; gboolean rtl; gboolean vertical; /* Start the sliding. This function copies the allocation of every * item into content->start_allocation. For items that haven't * been allocated yet, we calculate their position and save that * in start_allocatino along with zero width and zero height. * * FIXME: It would be nice if we could share this code with * the equivalent in gtk_widget_size_allocate(). */ priv->is_sliding = TRUE; if (!priv->idle_id) { priv->idle_id = g_idle_add (slide_idle_handler, toolbar); g_source_set_name_by_id (priv->idle_id, "[gtk+] slide_idle_handler"); } gtk_widget_get_own_allocation (widget, &content_allocation); rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL); vertical = (priv->orientation == GTK_ORIENTATION_VERTICAL); if (rtl) { cur_x = content_allocation.width; cur_y = content_allocation.height; } else { cur_x = 0; cur_y = 0; } cur_x += content_allocation.x; cur_y += content_allocation.y; for (list = priv->content; list != NULL; list = list->next) { ToolbarContent *content = list->data; GtkAllocation new_start_allocation; GtkAllocation item_allocation; ItemState state; state = toolbar_content_get_state (content); toolbar_content_get_allocation (content, &item_allocation); if ((state == NORMAL && rect_within (&item_allocation, &content_allocation)) || state == OVERFLOWN) { new_start_allocation = item_allocation; } else { new_start_allocation.x = cur_x; new_start_allocation.y = cur_y; if (vertical) { new_start_allocation.width = content_allocation.width; new_start_allocation.height = 0; } else { new_start_allocation.width = 0; new_start_allocation.height = content_allocation.height; } } if (vertical) cur_y = new_start_allocation.y + new_start_allocation.height; else if (rtl) cur_x = new_start_allocation.x; else cur_x = new_start_allocation.x + new_start_allocation.width; toolbar_content_set_start_allocation (content, &new_start_allocation); } /* This resize will run before the first idle handler. This * will make sure that items get the right goal allocation * so that the idle handler will not immediately return * FALSE */ gtk_widget_queue_resize_no_redraw (GTK_WIDGET (toolbar)); g_timer_reset (priv->timer); } static void gtk_toolbar_stop_sliding (GtkToolbar *toolbar) { GtkToolbarPrivate *priv = toolbar->priv; if (priv->is_sliding) { GList *list; priv->is_sliding = FALSE; if (priv->idle_id) { g_source_remove (priv->idle_id); priv->idle_id = 0; } list = priv->content; while (list) { ToolbarContent *content = list->data; list = list->next; if (toolbar_content_is_placeholder (content)) { toolbar_content_remove (content, toolbar); toolbar_content_free (content); } } gtk_widget_queue_resize_no_redraw (GTK_WIDGET (toolbar)); } } static void remove_item (GtkWidget *menu_item, gpointer data) { gtk_container_remove (GTK_CONTAINER (gtk_widget_get_parent (menu_item)), menu_item); } static void menu_deactivated (GtkWidget *menu, GtkToolbar *toolbar) { GtkToolbarPrivate *priv = toolbar->priv; gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (priv->arrow_button), FALSE); } static void menu_detached (GtkWidget *widget, GtkMenu *menu) { GtkToolbar *toolbar = GTK_TOOLBAR (widget); GtkToolbarPrivate *priv = toolbar->priv; priv->menu = NULL; } static void rebuild_menu (GtkToolbar *toolbar) { GtkToolbarPrivate *priv = toolbar->priv; GList *list, *children; if (!priv->menu) { priv->menu = GTK_MENU (gtk_menu_new ()); gtk_menu_attach_to_widget (priv->menu, GTK_WIDGET (toolbar), menu_detached); g_signal_connect (priv->menu, "deactivate", G_CALLBACK (menu_deactivated), toolbar); } gtk_container_foreach (GTK_CONTAINER (priv->menu), remove_item, NULL); for (list = priv->content; list != NULL; list = list->next) { ToolbarContent *content = list->data; if (toolbar_content_get_state (content) == OVERFLOWN && !toolbar_content_is_placeholder (content)) { GtkWidget *menu_item = toolbar_content_retrieve_menu_item (content); if (menu_item) { g_assert (GTK_IS_MENU_ITEM (menu_item)); gtk_menu_shell_append (GTK_MENU_SHELL (priv->menu), menu_item); } } } /* Remove leading and trailing separator items */ children = gtk_container_get_children (GTK_CONTAINER (priv->menu)); list = children; while (list && GTK_IS_SEPARATOR_MENU_ITEM (list->data)) { GtkWidget *child = list->data; gtk_container_remove (GTK_CONTAINER (priv->menu), child); list = list->next; } g_list_free (children); /* Regenerate the list of children so we don't try to remove items twice */ children = gtk_container_get_children (GTK_CONTAINER (priv->menu)); list = g_list_last (children); while (list && GTK_IS_SEPARATOR_MENU_ITEM (list->data)) { GtkWidget *child = list->data; gtk_container_remove (GTK_CONTAINER (priv->menu), child); list = list->prev; } g_list_free (children); priv->need_rebuild = FALSE; } static void gtk_toolbar_size_allocate (GtkWidget *widget, const GtkAllocation *allocation, int baseline, GtkAllocation *out_clip) { GtkToolbar *toolbar = GTK_TOOLBAR (widget); GtkToolbarPrivate *priv = toolbar->priv; GtkAllocation arrow_allocation, item_area, widget_allocation; GtkAllocation *allocations; ItemState *new_states; gint arrow_size; gint size, pos, short_size; GList *list; gint i; gboolean need_arrow; gint n_expand_items; gint available_size; gint n_items; gint needed_size; GtkRequisition arrow_requisition; gboolean overflowing; gboolean size_changed; gtk_widget_get_allocation (widget, &widget_allocation); size_changed = FALSE; if (widget_allocation.x != priv->prev_allocation.x || widget_allocation.y != priv->prev_allocation.y || widget_allocation.width != priv->prev_allocation.width || widget_allocation.height != priv->prev_allocation.height) { size_changed = TRUE; } if (size_changed) gtk_toolbar_stop_sliding (toolbar); gtk_widget_get_preferred_size (priv->arrow_button, &arrow_requisition, NULL); if (priv->orientation == GTK_ORIENTATION_HORIZONTAL) { available_size = size = allocation->width; short_size = allocation->height; arrow_size = arrow_requisition.width; } else { available_size = size = allocation->height; short_size = allocation->width; arrow_size = arrow_requisition.height; } n_items = g_list_length (priv->content); allocations = g_new0 (GtkAllocation, n_items); new_states = g_new0 (ItemState, n_items); needed_size = 0; need_arrow = FALSE; for (list = priv->content; list != NULL; list = list->next) { ToolbarContent *content = list->data; if (toolbar_content_visible (content, toolbar)) { needed_size += get_item_size (toolbar, content); /* Do we need an arrow? * * Assume we don't, and see if any non-separator item * with a proxy menu item is then going to overflow. */ if (needed_size > available_size && !need_arrow && priv->show_arrow && toolbar_content_has_proxy_menu_item (content) && !toolbar_content_is_separator (content)) { need_arrow = TRUE; } } } if (need_arrow) size = available_size - arrow_size; else size = available_size; /* calculate widths and states of items */ overflowing = FALSE; for (list = priv->content, i = 0; list != NULL; list = list->next, ++i) { ToolbarContent *content = list->data; gint item_size; if (!toolbar_content_visible (content, toolbar)) { new_states[i] = HIDDEN; continue; } item_size = get_item_size (toolbar, content); if (item_size <= size && !overflowing) { size -= item_size; allocations[i].width = item_size; new_states[i] = NORMAL; } else { overflowing = TRUE; new_states[i] = OVERFLOWN; allocations[i].width = item_size; } } /* calculate width of arrow */ if (need_arrow) { arrow_allocation.width = arrow_size; arrow_allocation.height = MAX (short_size, 1); } /* expand expandable items */ /* We don't expand when there is an overflow menu, * because that leads to weird jumps when items get * moved to the overflow menu and the expanding * items suddenly get a lot of extra space */ if (!overflowing) { n_expand_items = 0; for (i = 0, list = priv->content; list != NULL; list = list->next, ++i) { ToolbarContent *content = list->data; if (toolbar_content_get_expand (content) && new_states[i] == NORMAL) n_expand_items++; } for (list = priv->content, i = 0; list != NULL; list = list->next, ++i) { ToolbarContent *content = list->data; if (toolbar_content_get_expand (content) && new_states[i] == NORMAL) { gint extra = size / n_expand_items; if (size % n_expand_items != 0) extra++; allocations[i].width += extra; size -= extra; n_expand_items--; } } g_assert (n_expand_items == 0); } /* position items */ pos = 0; for (list = priv->content, i = 0; list != NULL; list = list->next, ++i) { /* Both NORMAL and OVERFLOWN items get a position. * This ensures that sliding will work for OVERFLOWN items too. */ if (new_states[i] == NORMAL || new_states[i] == OVERFLOWN) { allocations[i].x = pos; allocations[i].y = 0; allocations[i].height = short_size; pos += allocations[i].width; } } /* position arrow */ if (need_arrow) { arrow_allocation.x = available_size - arrow_allocation.width; arrow_allocation.y = 0; } item_area.x = 0; item_area.y = 0; item_area.width = available_size - (need_arrow? arrow_size : 0); item_area.height = short_size; /* fix up allocations in the vertical or RTL cases */ if (priv->orientation == GTK_ORIENTATION_VERTICAL) { for (i = 0; i < n_items; ++i) fixup_allocation_for_vertical (&(allocations[i])); if (need_arrow) fixup_allocation_for_vertical (&arrow_allocation); fixup_allocation_for_vertical (&item_area); } else if (gtk_widget_get_direction (GTK_WIDGET (toolbar)) == GTK_TEXT_DIR_RTL) { for (i = 0; i < n_items; ++i) fixup_allocation_for_rtl (available_size, &(allocations[i])); if (need_arrow) fixup_allocation_for_rtl (available_size, &arrow_allocation); fixup_allocation_for_rtl (available_size, &item_area); } /* translate the items by allocation->(x,y) */ for (i = 0; i < n_items; ++i) { allocations[i].x += allocation->x; allocations[i].y += allocation->y; } if (need_arrow) { arrow_allocation.x += allocation->x; arrow_allocation.y += allocation->y; } item_area.x += allocation->x; item_area.y += allocation->y; /* did anything change? */ for (list = priv->content, i = 0; list != NULL; list = list->next, i++) { ToolbarContent *content = list->data; if (toolbar_content_get_state (content) == NORMAL && new_states[i] != NORMAL) { /* an item disappeared and we didn't change size, so begin sliding */ if (!size_changed) gtk_toolbar_begin_sliding (toolbar); } } /* finally allocate the items */ if (priv->is_sliding) { for (list = priv->content, i = 0; list != NULL; list = list->next, i++) { ToolbarContent *content = list->data; toolbar_content_set_goal_allocation (content, &(allocations[i])); } } for (list = priv->content, i = 0; list != NULL; list = list->next, ++i) { ToolbarContent *content = list->data; if (new_states[i] == OVERFLOWN || new_states[i] == NORMAL) { GtkAllocation alloc; GtkAllocation start_allocation = { 0, }; GtkAllocation goal_allocation; if (priv->is_sliding) { toolbar_content_get_start_allocation (content, &start_allocation); toolbar_content_get_goal_allocation (content, &goal_allocation); compute_intermediate_allocation (toolbar, &start_allocation, &goal_allocation, &alloc); } else { alloc = allocations[i]; } if (alloc.width <= 0 || alloc.height <= 0) { toolbar_content_set_child_visible (content, toolbar, FALSE); } else { if (!rect_within (&alloc, &item_area)) { toolbar_content_set_child_visible (content, toolbar, FALSE); toolbar_content_size_allocate (content, &alloc); } else { toolbar_content_set_child_visible (content, toolbar, TRUE); toolbar_content_size_allocate (content, &alloc); } } } else { toolbar_content_set_child_visible (content, toolbar, FALSE); } toolbar_content_set_state (content, new_states[i]); } if (priv->menu && priv->need_rebuild) rebuild_menu (toolbar); if (need_arrow) { gtk_widget_size_allocate (GTK_WIDGET (priv->arrow_button), &arrow_allocation, -1, out_clip); gtk_widget_show (GTK_WIDGET (priv->arrow_button)); } else { gtk_widget_hide (GTK_WIDGET (priv->arrow_button)); if (priv->menu && gtk_widget_get_visible (GTK_WIDGET (priv->menu))) gtk_menu_shell_deactivate (GTK_MENU_SHELL (priv->menu)); } g_free (allocations); g_free (new_states); } static void gtk_toolbar_style_updated (GtkWidget *widget) { GtkToolbar *toolbar = GTK_TOOLBAR (widget); GtkToolbarPrivate *priv = toolbar->priv; GTK_WIDGET_CLASS (gtk_toolbar_parent_class)->style_updated (widget); priv->max_homogeneous_pixels = -1; } static GList * gtk_toolbar_list_children_in_focus_order (GtkToolbar *toolbar, GtkDirectionType dir) { GtkToolbarPrivate *priv = toolbar->priv; GList *result = NULL; GList *list; gboolean rtl; /* generate list of children in reverse logical order */ for (list = priv->content; list != NULL; list = list->next) { ToolbarContent *content = list->data; GtkWidget *widget; widget = toolbar_content_get_widget (content); if (widget) result = g_list_prepend (result, widget); } result = g_list_prepend (result, priv->arrow_button); rtl = (gtk_widget_get_direction (GTK_WIDGET (toolbar)) == GTK_TEXT_DIR_RTL); /* move in logical order when * * - dir is TAB_FORWARD * * - in RTL mode and moving left or up * * - in LTR mode and moving right or down */ if (dir == GTK_DIR_TAB_FORWARD || (rtl && (dir == GTK_DIR_UP || dir == GTK_DIR_LEFT)) || (!rtl && (dir == GTK_DIR_DOWN || dir == GTK_DIR_RIGHT))) { result = g_list_reverse (result); } return result; } static gboolean gtk_toolbar_focus_home_or_end (GtkToolbar *toolbar, gboolean focus_home) { GList *children, *list; GtkDirectionType dir = focus_home? GTK_DIR_RIGHT : GTK_DIR_LEFT; children = gtk_toolbar_list_children_in_focus_order (toolbar, dir); if (gtk_widget_get_direction (GTK_WIDGET (toolbar)) == GTK_TEXT_DIR_RTL) { children = g_list_reverse (children); dir = (dir == GTK_DIR_RIGHT)? GTK_DIR_LEFT : GTK_DIR_RIGHT; } for (list = children; list != NULL; list = list->next) { GtkWidget *child = list->data; if (gtk_widget_get_focus_child (GTK_WIDGET (toolbar)) == child) break; if (gtk_widget_get_mapped (child) && gtk_widget_child_focus (child, dir)) break; } g_list_free (children); return TRUE; } /* Keybinding handler. This function is called when the user presses * Ctrl TAB or an arrow key. */ static void gtk_toolbar_move_focus (GtkWidget *widget, GtkDirectionType dir) { GtkToolbar *toolbar = GTK_TOOLBAR (widget); GtkWidget *focus_child; GList *list; gboolean try_focus = FALSE; GList *children; focus_child = gtk_widget_get_focus_child (widget); if (focus_child && gtk_widget_child_focus (focus_child, dir)) return; children = gtk_toolbar_list_children_in_focus_order (toolbar, dir); for (list = children; list != NULL; list = list->next) { GtkWidget *child = list->data; if (try_focus && gtk_widget_get_mapped (child) && gtk_widget_child_focus (child, dir)) break; if (child == focus_child) try_focus = TRUE; } g_list_free (children); } /* The focus handler for the toolbar. It called when the user presses * TAB or otherwise tries to focus the toolbar. */ static gboolean gtk_toolbar_focus (GtkWidget *widget, GtkDirectionType dir) { GtkToolbar *toolbar = GTK_TOOLBAR (widget); GList *children, *list; gboolean result = FALSE; /* if focus is already somewhere inside the toolbar then return FALSE. * The only way focus can stay inside the toolbar is when the user presses * arrow keys or Ctrl TAB (both of which are handled by the * gtk_toolbar_move_focus() keybinding function. */ if (gtk_widget_get_focus_child (widget)) return FALSE; children = gtk_toolbar_list_children_in_focus_order (toolbar, dir); for (list = children; list != NULL; list = list->next) { GtkWidget *child = list->data; if (gtk_widget_get_mapped (child) && gtk_widget_child_focus (child, dir)) { result = TRUE; break; } } g_list_free (children); return result; } static GtkSettings * toolbar_get_settings (GtkToolbar *toolbar) { return toolbar->priv->settings; } static void animation_change_notify (GtkToolbar *toolbar) { GtkToolbarPrivate *priv = toolbar->priv; GtkSettings *settings = toolbar_get_settings (toolbar); gboolean animation; if (settings) g_object_get (settings, "gtk-enable-animations", &animation, NULL); else animation = DEFAULT_ANIMATION_STATE; priv->animation = animation; } static void settings_change_notify (GtkSettings *settings, const GParamSpec *pspec, GtkToolbar *toolbar) { if (! strcmp (pspec->name, "gtk-enable-animations")) animation_change_notify (toolbar); } static void gtk_toolbar_display_changed (GtkWidget *widget, GdkDisplay *previous_display) { GtkToolbar *toolbar = GTK_TOOLBAR (widget); GtkToolbarPrivate *priv = toolbar->priv; GtkSettings *old_settings = toolbar_get_settings (toolbar); GtkSettings *settings; settings = gtk_widget_get_settings (GTK_WIDGET (toolbar)); if (settings == old_settings) return; if (old_settings) { g_signal_handler_disconnect (old_settings, priv->settings_connection); priv->settings_connection = 0; g_object_unref (old_settings); } if (settings) { priv->settings_connection = g_signal_connect (settings, "notify", G_CALLBACK (settings_change_notify), toolbar); priv->settings = g_object_ref (settings); } else priv->settings = NULL; animation_change_notify (toolbar); } static int find_drop_index (GtkToolbar *toolbar, gint x, gint y) { GtkToolbarPrivate *priv = toolbar->priv; GList *interesting_content; GList *list; GtkOrientation orientation; GtkTextDirection direction; gint best_distance = G_MAXINT; gint distance; gint cursor; gint pos; ToolbarContent *best_content; GtkAllocation allocation; /* list items we care about wrt. drag and drop */ interesting_content = NULL; for (list = priv->content; list != NULL; list = list->next) { ToolbarContent *content = list->data; if (toolbar_content_get_state (content) == NORMAL) interesting_content = g_list_prepend (interesting_content, content); } interesting_content = g_list_reverse (interesting_content); if (!interesting_content) return 0; orientation = priv->orientation; direction = gtk_widget_get_direction (GTK_WIDGET (toolbar)); /* distance to first interesting item */ best_content = interesting_content->data; toolbar_content_get_allocation (best_content, &allocation); if (orientation == GTK_ORIENTATION_HORIZONTAL) { cursor = x; if (direction == GTK_TEXT_DIR_LTR) pos = allocation.x; else pos = allocation.x + allocation.width; } else { cursor = y; pos = allocation.y; } best_content = NULL; best_distance = ABS (pos - cursor); /* distance to far end of each item */ for (list = interesting_content; list != NULL; list = list->next) { ToolbarContent *content = list->data; toolbar_content_get_allocation (content, &allocation); if (orientation == GTK_ORIENTATION_HORIZONTAL) { if (direction == GTK_TEXT_DIR_LTR) pos = allocation.x + allocation.width; else pos = allocation.x; } else { pos = allocation.y + allocation.height; } distance = ABS (pos - cursor); if (distance < best_distance) { best_distance = distance; best_content = content; } } g_list_free (interesting_content); if (!best_content) return 0; else return g_list_index (priv->content, best_content) + 1; } static void reset_all_placeholders (GtkToolbar *toolbar) { GtkToolbarPrivate *priv = toolbar->priv; GList *list; for (list = priv->content; list != NULL; list = list->next) { ToolbarContent *content = list->data; if (toolbar_content_is_placeholder (content)) toolbar_content_set_disappearing (content, TRUE); } } static gint physical_to_logical (GtkToolbar *toolbar, gint physical) { GtkToolbarPrivate *priv = toolbar->priv; GList *list; int logical; g_assert (physical >= 0); logical = 0; for (list = priv->content; list && physical > 0; list = list->next) { ToolbarContent *content = list->data; if (!toolbar_content_is_placeholder (content)) logical++; physical--; } g_assert (physical == 0); return logical; } static gint logical_to_physical (GtkToolbar *toolbar, gint logical) { GtkToolbarPrivate *priv = toolbar->priv; GList *list; gint physical; g_assert (logical >= 0); physical = 0; for (list = priv->content; list; list = list->next) { ToolbarContent *content = list->data; if (!toolbar_content_is_placeholder (content)) { if (logical == 0) break; logical--; } physical++; } g_assert (logical == 0); return physical; } /** * gtk_toolbar_set_drop_highlight_item: * @toolbar: a #GtkToolbar * @tool_item: (allow-none): a #GtkToolItem, or %NULL to turn of highlighting * @index_: a position on @toolbar * * Highlights @toolbar to give an idea of what it would look like * if @item was added to @toolbar at the position indicated by @index_. * If @item is %NULL, highlighting is turned off. In that case @index_ * is ignored. * * The @tool_item passed to this function must not be part of any widget * hierarchy. When an item is set as drop highlight item it can not * added to any widget hierarchy or used as highlight item for another * toolbar. **/ void gtk_toolbar_set_drop_highlight_item (GtkToolbar *toolbar, GtkToolItem *tool_item, gint index_) { ToolbarContent *content; GtkToolbarPrivate *priv; gint n_items; GtkRequisition requisition; GtkRequisition old_requisition; gboolean restart_sliding; g_return_if_fail (GTK_IS_TOOLBAR (toolbar)); g_return_if_fail (tool_item == NULL || GTK_IS_TOOL_ITEM (tool_item)); priv = toolbar->priv; if (!tool_item) { if (priv->highlight_tool_item) { gtk_widget_unparent (GTK_WIDGET (priv->highlight_tool_item)); g_object_unref (priv->highlight_tool_item); priv->highlight_tool_item = NULL; } reset_all_placeholders (toolbar); gtk_toolbar_begin_sliding (toolbar); return; } n_items = gtk_toolbar_get_n_items (toolbar); if (index_ < 0 || index_ > n_items) index_ = n_items; if (tool_item != priv->highlight_tool_item) { if (priv->highlight_tool_item) g_object_unref (priv->highlight_tool_item); g_object_ref_sink (tool_item); priv->highlight_tool_item = tool_item; gtk_widget_set_parent (GTK_WIDGET (priv->highlight_tool_item), GTK_WIDGET (toolbar)); } index_ = logical_to_physical (toolbar, index_); content = g_list_nth_data (priv->content, index_); if (index_ > 0) { ToolbarContent *prev_content; prev_content = g_list_nth_data (priv->content, index_ - 1); if (prev_content && toolbar_content_is_placeholder (prev_content)) content = prev_content; } if (!content || !toolbar_content_is_placeholder (content)) { GtkWidget *placeholder; placeholder = GTK_WIDGET (gtk_separator_tool_item_new ()); content = toolbar_content_new_tool_item (toolbar, GTK_TOOL_ITEM (placeholder), TRUE, index_); } g_assert (content); g_assert (toolbar_content_is_placeholder (content)); gtk_widget_get_preferred_size (GTK_WIDGET (priv->highlight_tool_item), &requisition, NULL); toolbar_content_set_expand (content, gtk_tool_item_get_expand (tool_item)); restart_sliding = FALSE; toolbar_content_size_request (content, toolbar, &old_requisition); if (priv->orientation == GTK_ORIENTATION_HORIZONTAL) { requisition.height = -1; if (requisition.width != old_requisition.width) restart_sliding = TRUE; } else { requisition.width = -1; if (requisition.height != old_requisition.height) restart_sliding = TRUE; } if (toolbar_content_disappearing (content)) restart_sliding = TRUE; reset_all_placeholders (toolbar); toolbar_content_set_disappearing (content, FALSE); toolbar_content_set_size_request (content, requisition.width, requisition.height); if (restart_sliding) gtk_toolbar_begin_sliding (toolbar); } static void gtk_toolbar_get_child_property (GtkContainer *container, GtkWidget *child, guint property_id, GValue *value, GParamSpec *pspec) { GtkToolItem *item = GTK_TOOL_ITEM (child); switch (property_id) { case CHILD_PROP_HOMOGENEOUS: g_value_set_boolean (value, gtk_tool_item_get_homogeneous (item)); break; case CHILD_PROP_EXPAND: g_value_set_boolean (value, gtk_tool_item_get_expand (item)); break; default: GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec); break; } } static void gtk_toolbar_set_child_property (GtkContainer *container, GtkWidget *child, guint property_id, const GValue *value, GParamSpec *pspec) { switch (property_id) { case CHILD_PROP_HOMOGENEOUS: gtk_tool_item_set_homogeneous (GTK_TOOL_ITEM (child), g_value_get_boolean (value)); break; case CHILD_PROP_EXPAND: gtk_tool_item_set_expand (GTK_TOOL_ITEM (child), g_value_get_boolean (value)); break; default: GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec); break; } } static void gtk_toolbar_add (GtkContainer *container, GtkWidget *widget) { GtkToolbar *toolbar = GTK_TOOLBAR (container); gtk_toolbar_insert (toolbar, GTK_TOOL_ITEM (widget), -1); } static void gtk_toolbar_remove (GtkContainer *container, GtkWidget *widget) { GtkToolbar *toolbar = GTK_TOOLBAR (container); GtkToolbarPrivate *priv = toolbar->priv; ToolbarContent *content_to_remove; GList *list; content_to_remove = NULL; for (list = priv->content; list != NULL; list = list->next) { ToolbarContent *content = list->data; GtkWidget *child; child = toolbar_content_get_widget (content); if (child && child == widget) { content_to_remove = content; break; } } g_return_if_fail (content_to_remove != NULL); toolbar_content_remove (content_to_remove, toolbar); toolbar_content_free (content_to_remove); } static void gtk_toolbar_forall (GtkContainer *container, GtkCallback callback, gpointer callback_data) { GtkToolbar *toolbar = GTK_TOOLBAR (container); GtkToolbarPrivate *priv = toolbar->priv; GList *list; g_return_if_fail (callback != NULL); list = priv->content; while (list) { ToolbarContent *content = list->data; GList *next = list->next; if (!toolbar_content_is_placeholder (content)) { GtkWidget *child = toolbar_content_get_widget (content); if (child) callback (child, callback_data); } list = next; } } static GType gtk_toolbar_child_type (GtkContainer *container) { return GTK_TYPE_TOOL_ITEM; } static void gtk_toolbar_reconfigured (GtkToolbar *toolbar) { GtkToolbarPrivate *priv = toolbar->priv; GList *list; list = priv->content; while (list) { ToolbarContent *content = list->data; GList *next = list->next; toolbar_content_toolbar_reconfigured (content, toolbar); list = next; } } static void gtk_toolbar_orientation_changed (GtkToolbar *toolbar, GtkOrientation orientation) { GtkToolbarPrivate *priv = toolbar->priv; if (priv->orientation != orientation) { priv->orientation = orientation; if (orientation == GTK_ORIENTATION_HORIZONTAL) gtk_image_set_from_icon_name (GTK_IMAGE (priv->arrow), "pan-down-symbolic"); else gtk_image_set_from_icon_name (GTK_IMAGE (priv->arrow), "pan-end-symbolic"); gtk_toolbar_reconfigured (toolbar); _gtk_orientable_set_style_classes (GTK_ORIENTABLE (toolbar)); gtk_widget_queue_resize (GTK_WIDGET (toolbar)); g_object_notify (G_OBJECT (toolbar), "orientation"); } } static void gtk_toolbar_real_style_changed (GtkToolbar *toolbar, GtkToolbarStyle style) { GtkToolbarPrivate *priv = toolbar->priv; if (priv->style != style) { priv->style = style; gtk_toolbar_reconfigured (toolbar); gtk_widget_queue_resize (GTK_WIDGET (toolbar)); g_object_notify (G_OBJECT (toolbar), "toolbar-style"); } } static void show_menu (GtkToolbar *toolbar, GdkEventButton *event) { GtkToolbarPrivate *priv = toolbar->priv; GtkRequisition minimum_size; rebuild_menu (toolbar); gtk_widget_show (GTK_WIDGET (priv->menu)); switch (priv->orientation) { case GTK_ORIENTATION_HORIZONTAL: gtk_widget_get_preferred_size (priv->arrow_button, &minimum_size, NULL); g_object_set (priv->menu, "anchor-hints", (GDK_ANCHOR_FLIP_Y | GDK_ANCHOR_SLIDE | GDK_ANCHOR_RESIZE), "menu-type-hint", GDK_WINDOW_TYPE_HINT_DROPDOWN_MENU, "rect-anchor-dx", -minimum_size.width, NULL); gtk_menu_popup_at_widget (priv->menu, priv->arrow_button, GDK_GRAVITY_SOUTH_EAST, GDK_GRAVITY_NORTH_WEST, (GdkEvent *) event); break; case GTK_ORIENTATION_VERTICAL: g_object_set (priv->menu, "anchor-hints", (GDK_ANCHOR_FLIP_X | GDK_ANCHOR_SLIDE | GDK_ANCHOR_RESIZE), NULL); gtk_menu_popup_at_widget (priv->menu, priv->arrow_button, GDK_GRAVITY_NORTH_EAST, GDK_GRAVITY_NORTH_WEST, (GdkEvent *) event); break; default: g_assert_not_reached (); break; } } static void gtk_toolbar_arrow_button_clicked (GtkWidget *button, GtkToolbar *toolbar) { GtkToolbarPrivate *priv = toolbar->priv; if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (priv->arrow_button)) && (!priv->menu || !gtk_widget_get_visible (GTK_WIDGET (priv->menu)))) { /* We only get here when the button is clicked with the keyboard, * because mouse button presses result in the menu being shown so * that priv->menu would be non-NULL and visible. */ show_menu (toolbar, NULL); gtk_menu_shell_select_first (GTK_MENU_SHELL (priv->menu), FALSE); } } static void gtk_toolbar_arrow_button_press (GtkGesture *gesture, int n_press, double x, double y, GtkToolbar *toolbar) { GtkWidget *button; button = gtk_event_controller_get_widget (GTK_EVENT_CONTROLLER (gesture)); show_menu (toolbar, NULL); gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button), TRUE); } static void gtk_toolbar_pressed_cb (GtkGestureMultiPress *gesture, int n_press, double x, double y, gpointer user_data) { GtkToolbar *toolbar = user_data; GdkEventSequence *sequence = gtk_gesture_single_get_current_sequence (GTK_GESTURE_SINGLE (gesture)); const GdkEvent *event = gtk_gesture_get_last_event (GTK_GESTURE (gesture), sequence); int button = gtk_gesture_single_get_current_button (GTK_GESTURE_SINGLE (gesture)); if (gdk_event_triggers_context_menu (event)) { gboolean return_value; g_signal_emit (toolbar, toolbar_signals[POPUP_CONTEXT_MENU], 0, (int)x, (int)y, button, &return_value); if (return_value) gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_CLAIMED); else gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_DENIED); } } static gboolean gtk_toolbar_popup_menu (GtkWidget *toolbar) { gboolean return_value; /* This function is the handler for the "popup menu" keybinding, * ie., it is called when the user presses Shift F10 */ g_signal_emit (toolbar, toolbar_signals[POPUP_CONTEXT_MENU], 0, -1, -1, -1, &return_value); return return_value; } /** * gtk_toolbar_new: * * Creates a new toolbar. * Returns: the newly-created toolbar. **/ GtkWidget * gtk_toolbar_new (void) { GtkToolbar *toolbar; toolbar = g_object_new (GTK_TYPE_TOOLBAR, NULL); return GTK_WIDGET (toolbar); } /** * gtk_toolbar_insert: * @toolbar: a #GtkToolbar * @item: a #GtkToolItem * @pos: the position of the new item * * Insert a #GtkToolItem into the toolbar at position @pos. If @pos is * 0 the item is prepended to the start of the toolbar. If @pos is * negative, the item is appended to the end of the toolbar. **/ void gtk_toolbar_insert (GtkToolbar *toolbar, GtkToolItem *item, gint pos) { g_return_if_fail (GTK_IS_TOOLBAR (toolbar)); g_return_if_fail (GTK_IS_TOOL_ITEM (item)); pos = MIN (pos, (int)g_list_length (toolbar->priv->content)); if (pos >= 0) pos = logical_to_physical (toolbar, pos); toolbar_content_new_tool_item (toolbar, item, FALSE, pos); } /** * gtk_toolbar_get_item_index: * @toolbar: a #GtkToolbar * @item: a #GtkToolItem that is a child of @toolbar * * Returns the position of @item on the toolbar, starting from 0. * It is an error if @item is not a child of the toolbar. * * Returns: the position of item on the toolbar. **/ gint gtk_toolbar_get_item_index (GtkToolbar *toolbar, GtkToolItem *item) { GtkToolbarPrivate *priv; GList *list; int n; g_return_val_if_fail (GTK_IS_TOOLBAR (toolbar), -1); g_return_val_if_fail (GTK_IS_TOOL_ITEM (item), -1); g_return_val_if_fail (gtk_widget_get_parent (GTK_WIDGET (item)) == GTK_WIDGET (toolbar), -1); priv = toolbar->priv; n = 0; for (list = priv->content; list != NULL; list = list->next) { ToolbarContent *content = list->data; GtkWidget *widget; widget = toolbar_content_get_widget (content); if (item == GTK_TOOL_ITEM (widget)) break; ++n; } return physical_to_logical (toolbar, n); } /** * gtk_toolbar_set_style: * @toolbar: a #GtkToolbar. * @style: the new style for @toolbar. * * Alters the view of @toolbar to display either icons only, text only, or both. **/ void gtk_toolbar_set_style (GtkToolbar *toolbar, GtkToolbarStyle style) { GtkToolbarPrivate *priv; g_return_if_fail (GTK_IS_TOOLBAR (toolbar)); priv = toolbar->priv; priv->style_set = TRUE; g_signal_emit (toolbar, toolbar_signals[STYLE_CHANGED], 0, style); } /** * gtk_toolbar_get_style: * @toolbar: a #GtkToolbar * * Retrieves whether the toolbar has text, icons, or both . See * gtk_toolbar_set_style(). * Returns: the current style of @toolbar **/ GtkToolbarStyle gtk_toolbar_get_style (GtkToolbar *toolbar) { g_return_val_if_fail (GTK_IS_TOOLBAR (toolbar), DEFAULT_TOOLBAR_STYLE); return toolbar->priv->style; } /** * gtk_toolbar_unset_style: * @toolbar: a #GtkToolbar * * Unsets a toolbar style set with gtk_toolbar_set_style(), so that * user preferences will be used to determine the toolbar style. **/ void gtk_toolbar_unset_style (GtkToolbar *toolbar) { GtkToolbarPrivate *priv; GtkToolbarStyle style; g_return_if_fail (GTK_IS_TOOLBAR (toolbar)); priv = toolbar->priv; if (priv->style_set) { style = DEFAULT_TOOLBAR_STYLE; if (style != priv->style) g_signal_emit (toolbar, toolbar_signals[STYLE_CHANGED], 0, style); priv->style_set = FALSE; } } /** * gtk_toolbar_get_n_items: * @toolbar: a #GtkToolbar * * Returns the number of items on the toolbar. * * Returns: the number of items on the toolbar **/ gint gtk_toolbar_get_n_items (GtkToolbar *toolbar) { GtkToolbarPrivate *priv; g_return_val_if_fail (GTK_IS_TOOLBAR (toolbar), -1); priv = toolbar->priv; return physical_to_logical (toolbar, g_list_length (priv->content)); } /** * gtk_toolbar_get_nth_item: * @toolbar: a #GtkToolbar * @n: A position on the toolbar * * Returns the @n'th item on @toolbar, or %NULL if the * toolbar does not contain an @n'th item. * * Returns: (nullable) (transfer none): The @n'th #GtkToolItem on @toolbar, * or %NULL if there isn’t an @n'th item. **/ GtkToolItem * gtk_toolbar_get_nth_item (GtkToolbar *toolbar, gint n) { GtkToolbarPrivate *priv; ToolbarContent *content; gint n_items; g_return_val_if_fail (GTK_IS_TOOLBAR (toolbar), NULL); priv = toolbar->priv; n_items = gtk_toolbar_get_n_items (toolbar); if (n < 0 || n >= n_items) return NULL; content = g_list_nth_data (priv->content, logical_to_physical (toolbar, n)); g_assert (content); g_assert (!toolbar_content_is_placeholder (content)); return GTK_TOOL_ITEM (toolbar_content_get_widget (content)); } /** * gtk_toolbar_set_show_arrow: * @toolbar: a #GtkToolbar * @show_arrow: Whether to show an overflow menu * * Sets whether to show an overflow menu when @toolbar isn’t allocated enough * size to show all of its items. If %TRUE, items which can’t fit in @toolbar, * and which have a proxy menu item set by gtk_tool_item_set_proxy_menu_item() * or #GtkToolItem::create-menu-proxy, will be available in an overflow menu, * which can be opened by an added arrow button. If %FALSE, @toolbar will * request enough size to fit all of its child items without any overflow. **/ void gtk_toolbar_set_show_arrow (GtkToolbar *toolbar, gboolean show_arrow) { GtkToolbarPrivate *priv; g_return_if_fail (GTK_IS_TOOLBAR (toolbar)); priv = toolbar->priv; show_arrow = show_arrow != FALSE; if (priv->show_arrow != show_arrow) { priv->show_arrow = show_arrow; if (!priv->show_arrow) gtk_widget_hide (priv->arrow_button); gtk_widget_queue_resize (GTK_WIDGET (toolbar)); g_object_notify (G_OBJECT (toolbar), "show-arrow"); } } /** * gtk_toolbar_get_show_arrow: * @toolbar: a #GtkToolbar * * Returns whether the toolbar has an overflow menu. * See gtk_toolbar_set_show_arrow(). * * Returns: %TRUE if the toolbar has an overflow menu. **/ gboolean gtk_toolbar_get_show_arrow (GtkToolbar *toolbar) { g_return_val_if_fail (GTK_IS_TOOLBAR (toolbar), FALSE); return toolbar->priv->show_arrow; } /** * gtk_toolbar_get_drop_index: * @toolbar: a #GtkToolbar * @x: x coordinate of a point on the toolbar * @y: y coordinate of a point on the toolbar * * Returns the position corresponding to the indicated point on * @toolbar. This is useful when dragging items to the toolbar: * this function returns the position a new item should be * inserted. * * @x and @y are in @toolbar coordinates. * * Returns: The position corresponding to the point (@x, @y) on the toolbar. **/ gint gtk_toolbar_get_drop_index (GtkToolbar *toolbar, gint x, gint y) { g_return_val_if_fail (GTK_IS_TOOLBAR (toolbar), -1); return physical_to_logical (toolbar, find_drop_index (toolbar, x, y)); } static void gtk_toolbar_dispose (GObject *object) { GtkToolbar *toolbar = GTK_TOOLBAR (object); GtkToolbarPrivate *priv = toolbar->priv; if (priv->arrow_button) { gtk_widget_unparent (priv->arrow_button); priv->arrow_button = NULL; } if (priv->menu) { g_signal_handlers_disconnect_by_func (priv->menu, menu_deactivated, toolbar); gtk_widget_destroy (GTK_WIDGET (priv->menu)); priv->menu = NULL; } if (priv->settings_connection > 0) { g_signal_handler_disconnect (priv->settings, priv->settings_connection); priv->settings_connection = 0; } g_clear_object (&priv->settings); G_OBJECT_CLASS (gtk_toolbar_parent_class)->dispose (object); } static void gtk_toolbar_finalize (GObject *object) { GtkToolbar *toolbar = GTK_TOOLBAR (object); GtkToolbarPrivate *priv = toolbar->priv; g_list_free_full (priv->content, (GDestroyNotify)toolbar_content_free); g_timer_destroy (priv->timer); if (priv->idle_id) g_source_remove (priv->idle_id); g_clear_object (&priv->click_gesture); G_OBJECT_CLASS (gtk_toolbar_parent_class)->finalize (object); } /* * ToolbarContent methods */ typedef enum { UNKNOWN, YES, NO } TriState; struct _ToolbarContent { ItemState state; GtkToolItem *item; GtkAllocation allocation; GtkAllocation start_allocation; GtkAllocation goal_allocation; guint is_placeholder : 1; guint disappearing : 1; guint has_menu : 2; }; static ToolbarContent * toolbar_content_new_tool_item (GtkToolbar *toolbar, GtkToolItem *item, gboolean is_placeholder, gint pos) { GtkToolbarPrivate *priv = toolbar->priv; ToolbarContent *content, *previous; content = g_slice_new0 (ToolbarContent); content->state = NOT_ALLOCATED; content->item = item; content->is_placeholder = is_placeholder; previous = pos > 0 ? g_list_nth_data (priv->content, -1) : NULL; priv->content = g_list_insert (priv->content, content, pos); if (gtk_widget_get_direction (GTK_WIDGET (toolbar)) == GTK_TEXT_DIR_RTL) gtk_css_node_insert_after (gtk_widget_get_css_node (GTK_WIDGET (toolbar)), gtk_widget_get_css_node (GTK_WIDGET (item)), previous ? gtk_widget_get_css_node (GTK_WIDGET (previous->item)) : NULL); else gtk_css_node_insert_before (gtk_widget_get_css_node (GTK_WIDGET (toolbar)), gtk_widget_get_css_node (GTK_WIDGET (item)), previous ? gtk_widget_get_css_node (GTK_WIDGET (previous->item)) : NULL); gtk_widget_set_parent (GTK_WIDGET (item), GTK_WIDGET (toolbar)); if (!is_placeholder) { priv->num_children++; gtk_toolbar_stop_sliding (toolbar); } gtk_widget_queue_resize (GTK_WIDGET (toolbar)); priv->need_rebuild = TRUE; return content; } static void toolbar_content_remove (ToolbarContent *content, GtkToolbar *toolbar) { GtkToolbarPrivate *priv = toolbar->priv; gtk_widget_unparent (GTK_WIDGET (content->item)); priv->content = g_list_remove (priv->content, content); if (!toolbar_content_is_placeholder (content)) priv->num_children--; gtk_widget_queue_resize (GTK_WIDGET (toolbar)); priv->need_rebuild = TRUE; } static void toolbar_content_free (ToolbarContent *content) { g_slice_free (ToolbarContent, content); } static gint calculate_max_homogeneous_pixels (GtkWidget *widget) { PangoContext *context; PangoFontMetrics *metrics; gint char_width; context = gtk_widget_get_pango_context (widget); metrics = pango_context_get_metrics (context, pango_context_get_font_description (context), pango_context_get_language (context)); char_width = pango_font_metrics_get_approximate_char_width (metrics); pango_font_metrics_unref (metrics); return PANGO_PIXELS (MAX_HOMOGENEOUS_N_CHARS * char_width); } static void toolbar_content_snapshot (ToolbarContent *content, GtkContainer *container, GtkSnapshot *snapshot) { GtkWidget *widget; if (content->is_placeholder) return; widget = GTK_WIDGET (content->item); if (widget) gtk_widget_snapshot_child (GTK_WIDGET (container), widget, snapshot); } static gboolean toolbar_content_visible (ToolbarContent *content, GtkToolbar *toolbar) { GtkToolbarPrivate *priv = toolbar->priv; GtkToolItem *item; item = content->item; if (!gtk_widget_get_visible (GTK_WIDGET (item))) return FALSE; if (priv->orientation == GTK_ORIENTATION_HORIZONTAL && gtk_tool_item_get_visible_horizontal (item)) return TRUE; if (priv->orientation == GTK_ORIENTATION_VERTICAL && gtk_tool_item_get_visible_vertical (item)) return TRUE; return FALSE; } static void toolbar_content_size_request (ToolbarContent *content, GtkToolbar *toolbar, GtkRequisition *requisition) { gtk_widget_get_preferred_size (GTK_WIDGET (content->item), requisition, NULL); if (content->is_placeholder && content->disappearing) { requisition->width = 0; requisition->height = 0; } } static gboolean toolbar_content_is_homogeneous (ToolbarContent *content, GtkToolbar *toolbar) { GtkToolbarPrivate *priv = toolbar->priv; GtkRequisition requisition; gboolean result; if (priv->max_homogeneous_pixels < 0) { priv->max_homogeneous_pixels = calculate_max_homogeneous_pixels (GTK_WIDGET (toolbar)); } toolbar_content_size_request (content, toolbar, &requisition); if (requisition.width > priv->max_homogeneous_pixels) return FALSE; result = gtk_tool_item_get_homogeneous (content->item) && !GTK_IS_SEPARATOR_TOOL_ITEM (content->item); if (gtk_tool_item_get_is_important (content->item) && priv->style == GTK_TOOLBAR_BOTH_HORIZ && priv->orientation == GTK_ORIENTATION_HORIZONTAL) { result = FALSE; } return result; } static gboolean toolbar_content_is_placeholder (ToolbarContent *content) { if (content->is_placeholder) return TRUE; return FALSE; } static gboolean toolbar_content_disappearing (ToolbarContent *content) { if (content->disappearing) return TRUE; return FALSE; } static ItemState toolbar_content_get_state (ToolbarContent *content) { return content->state; } static gboolean toolbar_content_child_visible (ToolbarContent *content) { return gtk_widget_get_child_visible (GTK_WIDGET (content->item)); } static void toolbar_content_get_goal_allocation (ToolbarContent *content, GtkAllocation *allocation) { *allocation = content->goal_allocation; } static void toolbar_content_get_allocation (ToolbarContent *content, GtkAllocation *allocation) { *allocation = content->allocation; } static void toolbar_content_set_start_allocation (ToolbarContent *content, GtkAllocation *allocation) { content->start_allocation = *allocation; } static gboolean toolbar_content_get_expand (ToolbarContent *content) { if (!content->disappearing && gtk_tool_item_get_expand (content->item)) return TRUE; return FALSE; } static void toolbar_content_set_goal_allocation (ToolbarContent *content, GtkAllocation *allocation) { content->goal_allocation = *allocation; } static void toolbar_content_set_child_visible (ToolbarContent *content, GtkToolbar *toolbar, gboolean visible) { gtk_widget_set_child_visible (GTK_WIDGET (content->item), visible); } static void toolbar_content_get_start_allocation (ToolbarContent *content, GtkAllocation *start_allocation) { *start_allocation = content->start_allocation; } static void toolbar_content_size_allocate (ToolbarContent *content, GtkAllocation *allocation) { GtkAllocation clip; content->allocation = *allocation; gtk_widget_size_allocate (GTK_WIDGET (content->item), allocation, -1, &clip); } static void toolbar_content_set_state (ToolbarContent *content, ItemState state) { content->state = state; } static GtkWidget * toolbar_content_get_widget (ToolbarContent *content) { return GTK_WIDGET (content->item); } static void toolbar_content_set_disappearing (ToolbarContent *content, gboolean disappearing) { content->disappearing = disappearing; } static void toolbar_content_set_size_request (ToolbarContent *content, gint width, gint height) { gtk_widget_set_size_request (GTK_WIDGET (content->item), width, height); } static void toolbar_content_toolbar_reconfigured (ToolbarContent *content, GtkToolbar *toolbar) { gtk_tool_item_toolbar_reconfigured (content->item); } static GtkWidget * toolbar_content_retrieve_menu_item (ToolbarContent *content) { return gtk_tool_item_retrieve_proxy_menu_item (content->item); } static gboolean toolbar_content_has_proxy_menu_item (ToolbarContent *content) { GtkWidget *menu_item; if (content->has_menu == YES) return TRUE; else if (content->has_menu == NO) return FALSE; menu_item = toolbar_content_retrieve_menu_item (content); content->has_menu = menu_item? YES : NO; return menu_item != NULL; } static void toolbar_content_set_unknown_menu_status (ToolbarContent *content) { content->has_menu = UNKNOWN; } static gboolean toolbar_content_is_separator (ToolbarContent *content) { return GTK_IS_SEPARATOR_TOOL_ITEM (content->item); } static void toolbar_content_set_expand (ToolbarContent *content, gboolean expand) { gtk_tool_item_set_expand (content->item, expand); } /* GTK+ internal methods */ gchar * _gtk_toolbar_elide_underscores (const gchar *original) { gchar *q, *result; const gchar *p, *end; gsize len; gboolean last_underscore; if (!original) return NULL; len = strlen (original); q = result = g_malloc (len + 1); last_underscore = FALSE; end = original + len; for (p = original; p < end; p++) { if (!last_underscore && *p == '_') last_underscore = TRUE; else { last_underscore = FALSE; if (original + 2 <= p && p + 1 <= end && p[-2] == '(' && p[-1] == '_' && p[0] != '_' && p[1] == ')') { q--; *q = '\0'; p++; } else *q++ = *p; } } if (last_underscore) *q++ = '_'; *q = '\0'; return result; } static GtkOrientation toolbar_get_orientation (GtkToolShell *shell) { GtkToolbar *toolbar = GTK_TOOLBAR (shell); GtkToolbarPrivate *priv = toolbar->priv; return priv->orientation; } static GtkToolbarStyle toolbar_get_style (GtkToolShell *shell) { GtkToolbar *toolbar = GTK_TOOLBAR (shell); GtkToolbarPrivate *priv = toolbar->priv; return priv->style; } static void toolbar_rebuild_menu (GtkToolShell *shell) { GtkToolbar *toolbar = GTK_TOOLBAR (shell); GtkToolbarPrivate *priv = toolbar->priv; GList *list; priv->need_rebuild = TRUE; for (list = priv->content; list != NULL; list = list->next) { ToolbarContent *content = list->data; toolbar_content_set_unknown_menu_status (content); } gtk_widget_queue_resize (GTK_WIDGET (shell)); } static void gtk_toolbar_direction_changed (GtkWidget *widget, GtkTextDirection previous_direction) { GTK_WIDGET_CLASS (gtk_toolbar_parent_class)->direction_changed (widget, previous_direction); gtk_css_node_reverse_children (gtk_widget_get_css_node (widget)); }