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gtk2/gtk/gtktoolbutton.c
Benjamin Otte 43c212ac28 build: Enable -Wswitch-enum and -Wswitch-default 
This patch makes that work using 1 of 2 options:

1. Add all missing enums to the switch statement
  or
2. Cast the switch argument to a uint to avoid having to do that (mostly
   for GdkEventType).

I even found a bug while doing that: clearing a GtkImage with a surface
did not notify thae surface property.

The reason for enabling this flag even though it is tedious at times is
that it is very useful when adding values to an enum, because it makes
GTK immediately warn about all the switch statements where this enum is
relevant.
And I expect changes to enums to be frequent during the GTK4 development
cycle.
2017-10-06 21:23:39 +02:00

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/* gtktoolbutton.c
*
* Copyright (C) 2002 Anders Carlsson <andersca@gnome.org>
* Copyright (C) 2002 James Henstridge <james@daa.com.au>
* Copyright (C) 2003 Soeren Sandmann <sandmann@daimi.au.dk>
*
* 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 <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "gtktoolbutton.h"
#include "gtkbutton.h"
#include "gtkimage.h"
#include "gtklabel.h"
#include "gtkbox.h"
#include "gtkintl.h"
#include "gtktoolbarprivate.h"
#include "gtkicontheme.h"
#include "gtkactionable.h"
#include "gtkprivate.h"
#include <string.h>
/**
* SECTION:gtktoolbutton
* @Short_description: A GtkToolItem subclass that displays buttons
* @Title: GtkToolButton
* @See_also: #GtkToolbar, #GtkMenuToolButton, #GtkToggleToolButton,
* #GtkRadioToolButton, #GtkSeparatorToolItem
*
* #GtkToolButtons are #GtkToolItems containing buttons.
*
* Use gtk_tool_button_new() to create a new #GtkToolButton.
*
* The label of a #GtkToolButton is determined by the properties
* #GtkToolButton:label-widget and #GtkToolButton:label.
* If #GtkToolButton:label-widget is
* non-%NULL, then that widget is used as the label. Otherwise, if
* #GtkToolButton:label is non-%NULL, that string is used as the label.
*
* The icon of a #GtkToolButton is determined by the
* #GtkToolButton:icon-widget property. If
* #GtkToolButton:icon-widget is non-%NULL, then
* that widget is used as the icon. Otherwise it does not have an icon.
*
* # CSS nodes
*
* GtkToolButton has a single CSS node with name toolbutton.
*/
#define MENU_ID "gtk-tool-button-menu-id"
enum {
CLICKED,
LAST_SIGNAL
};
enum {
PROP_0,
PROP_LABEL,
PROP_USE_UNDERLINE,
PROP_LABEL_WIDGET,
PROP_ICON_NAME,
PROP_ICON_WIDGET,
PROP_ACTION_NAME,
PROP_ACTION_TARGET
};
static void gtk_tool_button_init (GtkToolButton *button,
GtkToolButtonClass *klass);
static void gtk_tool_button_class_init (GtkToolButtonClass *klass);
static void gtk_tool_button_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void gtk_tool_button_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
static void gtk_tool_button_property_notify (GObject *object,
GParamSpec *pspec);
static void gtk_tool_button_finalize (GObject *object);
static void gtk_tool_button_toolbar_reconfigured (GtkToolItem *tool_item);
static gboolean gtk_tool_button_create_menu_proxy (GtkToolItem *item);
static void button_clicked (GtkWidget *widget,
GtkToolButton *button);
static void gtk_tool_button_construct_contents (GtkToolItem *tool_item);
static void gtk_tool_button_actionable_iface_init (GtkActionableInterface *iface);
struct _GtkToolButtonPrivate
{
GtkWidget *button;
gchar *icon_name;
gchar *label_text;
GtkWidget *label_widget;
GtkWidget *icon_widget;
GtkSizeGroup *text_size_group;
guint use_underline : 1;
guint contents_invalid : 1;
};
static GObjectClass *parent_class = NULL;
static guint toolbutton_signals[LAST_SIGNAL] = { 0 };
GType
gtk_tool_button_get_type (void)
{
static GType g_define_type_id = 0;
if (!g_define_type_id)
{
const GInterfaceInfo actionable_info =
{
(GInterfaceInitFunc) gtk_tool_button_actionable_iface_init,
(GInterfaceFinalizeFunc) NULL,
NULL
};
g_define_type_id = g_type_register_static_simple (GTK_TYPE_TOOL_ITEM,
I_("GtkToolButton"),
sizeof (GtkToolButtonClass),
(GClassInitFunc) gtk_tool_button_class_init,
sizeof (GtkToolButton),
(GInstanceInitFunc) gtk_tool_button_init,
0);
g_type_add_interface_static (g_define_type_id,
GTK_TYPE_ACTIONABLE, &actionable_info);
}
return g_define_type_id;
}
static void
gtk_tool_button_class_init (GtkToolButtonClass *klass)
{
GObjectClass *object_class;
GtkWidgetClass *widget_class;
GtkToolItemClass *tool_item_class;
parent_class = g_type_class_peek_parent (klass);
object_class = (GObjectClass *)klass;
widget_class = (GtkWidgetClass *)klass;
tool_item_class = (GtkToolItemClass *)klass;
object_class->set_property = gtk_tool_button_set_property;
object_class->get_property = gtk_tool_button_get_property;
object_class->notify = gtk_tool_button_property_notify;
object_class->finalize = gtk_tool_button_finalize;
tool_item_class->create_menu_proxy = gtk_tool_button_create_menu_proxy;
tool_item_class->toolbar_reconfigured = gtk_tool_button_toolbar_reconfigured;
klass->button_type = GTK_TYPE_BUTTON;
/* Properties are interpreted like this:
*
* - if the tool button has an icon_widget, then that widget
* will be used as the icon. Otherwise, if the tool button
* has a stock id, the corresponding stock icon will be
* used. Otherwise, if the tool button has an icon name,
* the corresponding icon from the theme will be used.
* Otherwise, the tool button will not have an icon.
*
* - if the tool button has a label_widget then that widget
* will be used as the label. Otherwise, if the tool button
* has a label text, that text will be used as label. Otherwise,
* if the toolbutton has a stock id, the corresponding text
* will be used as label. Otherwise, if the tool button has
* an icon name, the corresponding icon name from the theme will
* be used. Otherwise, the toolbutton will have an empty label.
*
* - The use_underline property only has an effect when the label
* on the toolbutton comes from the label property (ie. not from
* label_widget or from stock_id).
*
* In that case, if use_underline is set,
*
* - underscores are removed from the label text before
* the label is shown on the toolbutton unless the
* underscore is followed by another underscore
*
* - an underscore indicates that the next character when
* used in the overflow menu should be used as a
* mnemonic.
*
* In short: use_underline = TRUE means that the label text has
* the form "_Open" and the toolbar should take appropriate
* action.
*/
g_object_class_install_property (object_class,
PROP_LABEL,
g_param_spec_string ("label",
P_("Label"),
P_("Text to show in the item."),
NULL,
GTK_PARAM_READWRITE));
g_object_class_install_property (object_class,
PROP_USE_UNDERLINE,
g_param_spec_boolean ("use-underline",
P_("Use underline"),
P_("If set, an underline in the label property indicates that the next character should be used for the mnemonic accelerator key in the overflow menu"),
FALSE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
g_object_class_install_property (object_class,
PROP_LABEL_WIDGET,
g_param_spec_object ("label-widget",
P_("Label widget"),
P_("Widget to use as the item label"),
GTK_TYPE_WIDGET,
GTK_PARAM_READWRITE));
/**
* GtkToolButton:icon-name:
*
* The name of the themed icon displayed on the item.
* This property only has an effect if not overridden by
* #GtkToolButton:label-widget or #GtkToolButton:icon-widget
*
* Since: 2.8
*/
g_object_class_install_property (object_class,
PROP_ICON_NAME,
g_param_spec_string ("icon-name",
P_("Icon name"),
P_("The name of the themed icon displayed on the item"),
NULL,
GTK_PARAM_READWRITE));
g_object_class_install_property (object_class,
PROP_ICON_WIDGET,
g_param_spec_object ("icon-widget",
P_("Icon widget"),
P_("Icon widget to display in the item"),
GTK_TYPE_WIDGET,
GTK_PARAM_READWRITE));
g_object_class_override_property (object_class, PROP_ACTION_NAME, "action-name");
g_object_class_override_property (object_class, PROP_ACTION_TARGET, "action-target");
/**
* GtkToolButton::clicked:
* @toolbutton: the object that emitted the signal
*
* This signal is emitted when the tool button is clicked with the mouse
* or activated with the keyboard.
**/
toolbutton_signals[CLICKED] =
g_signal_new (I_("clicked"),
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkToolButtonClass, clicked),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
g_type_class_add_private (object_class, sizeof (GtkToolButtonPrivate));
gtk_widget_class_set_css_name (widget_class, "toolbutton");
}
static void
gtk_tool_button_init (GtkToolButton *button,
GtkToolButtonClass *klass)
{
GtkToolItem *toolitem = GTK_TOOL_ITEM (button);
button->priv = G_TYPE_INSTANCE_GET_PRIVATE (button,
GTK_TYPE_TOOL_BUTTON,
GtkToolButtonPrivate);
button->priv->contents_invalid = TRUE;
gtk_tool_item_set_homogeneous (toolitem, TRUE);
/* create button */
button->priv->button = g_object_new (klass->button_type, NULL);
gtk_widget_set_focus_on_click (GTK_WIDGET (button->priv->button), FALSE);
g_signal_connect_object (button->priv->button, "clicked",
G_CALLBACK (button_clicked), button, 0);
gtk_container_add (GTK_CONTAINER (button), button->priv->button);
}
static void
gtk_tool_button_construct_contents (GtkToolItem *tool_item)
{
GtkToolButton *button = GTK_TOOL_BUTTON (tool_item);
GtkWidget *child;
GtkWidget *label = NULL;
GtkWidget *icon = NULL;
GtkToolbarStyle style;
gboolean need_label = FALSE;
gboolean need_icon = FALSE;
GtkIconSize icon_size;
GtkWidget *box = NULL;
GtkOrientation text_orientation = GTK_ORIENTATION_HORIZONTAL;
GtkSizeGroup *size_group = NULL;
GtkWidget *parent;
button->priv->contents_invalid = FALSE;
if (button->priv->icon_widget)
{
parent = gtk_widget_get_parent (button->priv->icon_widget);
if (parent)
{
gtk_container_remove (GTK_CONTAINER (parent),
button->priv->icon_widget);
}
}
if (button->priv->label_widget)
{
parent = gtk_widget_get_parent (button->priv->label_widget);
if (parent)
{
gtk_container_remove (GTK_CONTAINER (parent),
button->priv->label_widget);
}
}
child = gtk_bin_get_child (GTK_BIN (button->priv->button));
if (child)
{
/* Note: we are not destroying the label_widget or icon_widget
* here because they were removed from their containers above
*/
gtk_widget_destroy (child);
}
style = gtk_tool_item_get_toolbar_style (GTK_TOOL_ITEM (button));
if (style != GTK_TOOLBAR_TEXT)
need_icon = TRUE;
if (style != GTK_TOOLBAR_ICONS && style != GTK_TOOLBAR_BOTH_HORIZ)
need_label = TRUE;
if (style == GTK_TOOLBAR_BOTH_HORIZ &&
(gtk_tool_item_get_is_important (GTK_TOOL_ITEM (button)) ||
gtk_tool_item_get_orientation (GTK_TOOL_ITEM (button)) == GTK_ORIENTATION_VERTICAL ||
gtk_tool_item_get_text_orientation (GTK_TOOL_ITEM (button)) == GTK_ORIENTATION_VERTICAL))
{
need_label = TRUE;
}
if (style != GTK_TOOLBAR_TEXT && button->priv->icon_widget == NULL &&
button->priv->icon_name == NULL)
{
need_label = TRUE;
need_icon = FALSE;
style = GTK_TOOLBAR_TEXT;
}
if (style == GTK_TOOLBAR_TEXT && button->priv->label_widget == NULL &&
button->priv->label_text == NULL)
{
need_label = FALSE;
need_icon = TRUE;
style = GTK_TOOLBAR_ICONS;
}
if (need_label)
{
if (button->priv->label_widget)
{
label = button->priv->label_widget;
}
else
{
gboolean elide;
const char *orig_label;
gchar *label_text;
if (button->priv->label_text)
{
orig_label = button->priv->label_text;
elide = button->priv->use_underline;
}
else
{
orig_label = "";
elide = FALSE;
}
if (elide)
label_text = _gtk_toolbar_elide_underscores (orig_label);
else
label_text = g_strdup (orig_label);
label = gtk_label_new (label_text);
g_free (label_text);
}
if (GTK_IS_LABEL (label))
{
gtk_label_set_ellipsize (GTK_LABEL (label),
gtk_tool_item_get_ellipsize_mode (GTK_TOOL_ITEM (button)));
text_orientation = gtk_tool_item_get_text_orientation (GTK_TOOL_ITEM (button));
if (text_orientation == GTK_ORIENTATION_HORIZONTAL)
{
gfloat align;
align = gtk_tool_item_get_text_alignment (GTK_TOOL_ITEM (button));
if (align < 0.4)
gtk_widget_set_halign (label, GTK_ALIGN_START);
else if (align > 0.6)
gtk_widget_set_halign (label, GTK_ALIGN_END);
else
gtk_widget_set_halign (label, GTK_ALIGN_CENTER);
}
else
{
gfloat align;
gtk_label_set_ellipsize (GTK_LABEL (label), PANGO_ELLIPSIZE_NONE);
align = gtk_tool_item_get_text_alignment (GTK_TOOL_ITEM (button));
if (align < 0.4)
gtk_widget_set_valign (label, GTK_ALIGN_END);
else if (align > 0.6)
gtk_widget_set_valign (label, GTK_ALIGN_START);
else
gtk_widget_set_valign (label, GTK_ALIGN_CENTER);
}
}
}
icon_size = gtk_tool_item_get_icon_size (GTK_TOOL_ITEM (button));
if (need_icon)
{
if (button->priv->icon_widget)
{
icon = button->priv->icon_widget;
if (GTK_IS_IMAGE (icon))
{
g_object_set (button->priv->icon_widget,
"icon-size", icon_size,
NULL);
}
}
else if (button->priv->icon_name)
{
icon = gtk_image_new_from_icon_name (button->priv->icon_name, icon_size);
}
if (icon)
{
if (text_orientation == GTK_ORIENTATION_HORIZONTAL)
{
gfloat align;
align = gtk_tool_item_get_text_alignment (GTK_TOOL_ITEM (button));
if (align > 0.6)
gtk_widget_set_halign (icon, GTK_ALIGN_START);
else if (align < 0.4)
gtk_widget_set_halign (icon, GTK_ALIGN_END);
else
gtk_widget_set_halign (icon, GTK_ALIGN_CENTER);
}
else
{
gfloat align;
align = gtk_tool_item_get_text_alignment (GTK_TOOL_ITEM (button));
if (align > 0.6)
gtk_widget_set_valign (icon, GTK_ALIGN_END);
else if (align < 0.4)
gtk_widget_set_valign (icon, GTK_ALIGN_START);
else
gtk_widget_set_valign (icon, GTK_ALIGN_CENTER);
}
size_group = gtk_tool_item_get_text_size_group (GTK_TOOL_ITEM (button));
if (size_group != NULL)
gtk_size_group_add_widget (size_group, icon);
}
}
switch (style)
{
default:
case GTK_TOOLBAR_ICONS:
if (icon)
gtk_container_add (GTK_CONTAINER (button->priv->button), icon);
gtk_style_context_add_class (gtk_widget_get_style_context (button->priv->button), "image-button");
gtk_style_context_remove_class (gtk_widget_get_style_context (button->priv->button), "text-button");
break;
case GTK_TOOLBAR_BOTH:
if (text_orientation == GTK_ORIENTATION_HORIZONTAL)
box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
else
box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL,0);
if (icon)
gtk_box_pack_start (GTK_BOX (box), icon);
gtk_box_pack_end (GTK_BOX (box), label);
gtk_container_add (GTK_CONTAINER (button->priv->button), box);
gtk_style_context_add_class (gtk_widget_get_style_context (button->priv->button), "image-button");
gtk_style_context_add_class (gtk_widget_get_style_context (button->priv->button), "text-button");
break;
case GTK_TOOLBAR_BOTH_HORIZ:
if (text_orientation == GTK_ORIENTATION_HORIZONTAL)
{
box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
if (icon)
gtk_box_pack_start (GTK_BOX (box), icon);
if (label)
gtk_box_pack_end (GTK_BOX (box), label);
}
else
{
box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
if (icon)
gtk_box_pack_end (GTK_BOX (box), icon);
if (label)
gtk_box_pack_start (GTK_BOX (box), label);
}
gtk_container_add (GTK_CONTAINER (button->priv->button), box);
gtk_style_context_add_class (gtk_widget_get_style_context (button->priv->button), "image-button");
gtk_style_context_add_class (gtk_widget_get_style_context (button->priv->button), "text-button");
break;
case GTK_TOOLBAR_TEXT:
gtk_container_add (GTK_CONTAINER (button->priv->button), label);
gtk_style_context_add_class (gtk_widget_get_style_context (button->priv->button), "text-button");
gtk_style_context_remove_class (gtk_widget_get_style_context (button->priv->button), "image-button");
break;
}
if (box)
gtk_widget_show (box);
gtk_tool_item_rebuild_menu (tool_item);
gtk_widget_queue_resize (GTK_WIDGET (button));
}
static void
gtk_tool_button_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkToolButton *button = GTK_TOOL_BUTTON (object);
switch (prop_id)
{
case PROP_LABEL:
gtk_tool_button_set_label (button, g_value_get_string (value));
break;
case PROP_USE_UNDERLINE:
gtk_tool_button_set_use_underline (button, g_value_get_boolean (value));
break;
case PROP_LABEL_WIDGET:
gtk_tool_button_set_label_widget (button, g_value_get_object (value));
break;
case PROP_ICON_NAME:
gtk_tool_button_set_icon_name (button, g_value_get_string (value));
break;
case PROP_ICON_WIDGET:
gtk_tool_button_set_icon_widget (button, g_value_get_object (value));
break;
case PROP_ACTION_NAME:
g_object_set_property (G_OBJECT (button->priv->button), "action-name", value);
break;
case PROP_ACTION_TARGET:
g_object_set_property (G_OBJECT (button->priv->button), "action-target", value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_tool_button_property_notify (GObject *object,
GParamSpec *pspec)
{
GtkToolButton *button = GTK_TOOL_BUTTON (object);
if (button->priv->contents_invalid ||
strcmp ("is-important", pspec->name) == 0)
gtk_tool_button_construct_contents (GTK_TOOL_ITEM (object));
if (parent_class->notify)
parent_class->notify (object, pspec);
}
static void
gtk_tool_button_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkToolButton *button = GTK_TOOL_BUTTON (object);
switch (prop_id)
{
case PROP_LABEL:
g_value_set_string (value, gtk_tool_button_get_label (button));
break;
case PROP_LABEL_WIDGET:
g_value_set_object (value, gtk_tool_button_get_label_widget (button));
break;
case PROP_USE_UNDERLINE:
g_value_set_boolean (value, gtk_tool_button_get_use_underline (button));
break;
case PROP_ICON_NAME:
g_value_set_string (value, button->priv->icon_name);
break;
case PROP_ICON_WIDGET:
g_value_set_object (value, button->priv->icon_widget);
break;
case PROP_ACTION_NAME:
g_object_get_property (G_OBJECT (button->priv->button), "action-name", value);
break;
case PROP_ACTION_TARGET:
g_object_get_property (G_OBJECT (button->priv->button), "action-target", value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static const gchar *
gtk_tool_button_get_action_name (GtkActionable *actionable)
{
GtkToolButton *button = GTK_TOOL_BUTTON (actionable);
return gtk_actionable_get_action_name (GTK_ACTIONABLE (button->priv->button));
}
static void
gtk_tool_button_set_action_name (GtkActionable *actionable,
const gchar *action_name)
{
GtkToolButton *button = GTK_TOOL_BUTTON (actionable);
gtk_actionable_set_action_name (GTK_ACTIONABLE (button->priv->button), action_name);
}
static GVariant *
gtk_tool_button_get_action_target_value (GtkActionable *actionable)
{
GtkToolButton *button = GTK_TOOL_BUTTON (actionable);
return gtk_actionable_get_action_target_value (GTK_ACTIONABLE (button->priv->button));
}
static void
gtk_tool_button_set_action_target_value (GtkActionable *actionable,
GVariant *action_target)
{
GtkToolButton *button = GTK_TOOL_BUTTON (actionable);
gtk_actionable_set_action_target_value (GTK_ACTIONABLE (button->priv->button), action_target);
}
static void
gtk_tool_button_actionable_iface_init (GtkActionableInterface *iface)
{
iface->get_action_name = gtk_tool_button_get_action_name;
iface->set_action_name = gtk_tool_button_set_action_name;
iface->get_action_target_value = gtk_tool_button_get_action_target_value;
iface->set_action_target_value = gtk_tool_button_set_action_target_value;
}
static void
gtk_tool_button_finalize (GObject *object)
{
GtkToolButton *button = GTK_TOOL_BUTTON (object);
g_free (button->priv->icon_name);
g_free (button->priv->label_text);
if (button->priv->label_widget)
g_object_unref (button->priv->label_widget);
if (button->priv->icon_widget)
g_object_unref (button->priv->icon_widget);
parent_class->finalize (object);
}
static GtkWidget *
clone_image_menu_size (GtkImage *image)
{
GtkImageType storage_type = gtk_image_get_storage_type (image);
if (storage_type == GTK_IMAGE_ICON_NAME)
{
const gchar *icon_name;
gtk_image_get_icon_name (image, &icon_name, NULL);
return gtk_image_new_from_icon_name (icon_name, GTK_ICON_SIZE_MENU);
}
else if (storage_type == GTK_IMAGE_GICON)
{
GIcon *icon;
gtk_image_get_gicon (image, &icon, NULL);
return gtk_image_new_from_gicon (icon, GTK_ICON_SIZE_MENU);
}
else if (storage_type == GTK_IMAGE_PIXBUF)
{
gint width, height;
if (gtk_icon_size_lookup (GTK_ICON_SIZE_MENU, &width, &height))
{
GdkPixbuf *src_pixbuf, *dest_pixbuf;
GtkWidget *cloned_image;
src_pixbuf = gtk_image_get_pixbuf (image);
dest_pixbuf = gdk_pixbuf_scale_simple (src_pixbuf, width, height,
GDK_INTERP_BILINEAR);
cloned_image = gtk_image_new_from_pixbuf (dest_pixbuf);
g_object_unref (dest_pixbuf);
return cloned_image;
}
}
return NULL;
}
static gboolean
gtk_tool_button_create_menu_proxy (GtkToolItem *item)
{
GtkToolButton *button = GTK_TOOL_BUTTON (item);
GtkWidget *menu_item;
GtkWidget *menu_image = NULL;
gboolean use_mnemonic = TRUE;
const char *label_text;
GtkWidget *box;
GtkWidget *label;
if (_gtk_tool_item_create_menu_proxy (item))
return TRUE;
if (GTK_IS_LABEL (button->priv->label_widget))
{
label_text = gtk_label_get_label (GTK_LABEL (button->priv->label_widget));
use_mnemonic = gtk_label_get_use_underline (GTK_LABEL (button->priv->label_widget));
}
else if (button->priv->label_text)
{
label_text = button->priv->label_text;
use_mnemonic = button->priv->use_underline;
}
else
{
label_text = "";
}
if (GTK_IS_IMAGE (button->priv->icon_widget))
{
menu_image = clone_image_menu_size (GTK_IMAGE (button->priv->icon_widget));
}
box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
if (use_mnemonic)
label = gtk_label_new_with_mnemonic (label_text);
else
label = gtk_label_new (label_text);
if (menu_image)
gtk_container_add (GTK_CONTAINER (box), menu_image);
gtk_container_add (GTK_CONTAINER (box), label);
menu_item = gtk_menu_item_new ();
gtk_container_add (GTK_CONTAINER (menu_item), box);
g_signal_connect_closure_by_id (menu_item,
g_signal_lookup ("activate", G_OBJECT_TYPE (menu_item)), 0,
g_cclosure_new_object_swap (G_CALLBACK (gtk_button_clicked),
G_OBJECT (GTK_TOOL_BUTTON (button)->priv->button)),
FALSE);
gtk_tool_item_set_proxy_menu_item (GTK_TOOL_ITEM (button), MENU_ID, menu_item);
return TRUE;
}
static void
button_clicked (GtkWidget *widget,
GtkToolButton *button)
{
g_signal_emit_by_name (button, "clicked");
}
static void
gtk_tool_button_toolbar_reconfigured (GtkToolItem *tool_item)
{
gtk_tool_button_construct_contents (tool_item);
}
/**
* gtk_tool_button_new:
* @label: (allow-none): a string that will be used as label, or %NULL
* @icon_widget: (allow-none): a widget that will be used as the button contents, or %NULL
*
* Creates a new #GtkToolButton using @icon_widget as contents and @label as
* label.
*
* Returns: A new #GtkToolButton
*
* Since: 2.4
**/
GtkToolItem *
gtk_tool_button_new (GtkWidget *icon_widget,
const gchar *label)
{
GtkToolButton *button;
g_return_val_if_fail (icon_widget == NULL || GTK_IS_WIDGET (icon_widget), NULL);
button = g_object_new (GTK_TYPE_TOOL_BUTTON,
"label", label,
"icon-widget", icon_widget,
NULL);
return GTK_TOOL_ITEM (button);
}
/**
* gtk_tool_button_set_label:
* @button: a #GtkToolButton
* @label: (allow-none): a string that will be used as label, or %NULL.
*
* Sets @label as the label used for the tool button. The #GtkToolButton:label
* property only has an effect if not overridden by a non-%NULL
* #GtkToolButton:label-widget property. If both the #GtkToolButton:label-widget
* and #GtkToolButton:label properties are %NULL, @button will not have a label.
*
* Since: 2.4
**/
void
gtk_tool_button_set_label (GtkToolButton *button,
const gchar *label)
{
gchar *old_label;
gchar *elided_label;
AtkObject *accessible;
g_return_if_fail (GTK_IS_TOOL_BUTTON (button));
old_label = button->priv->label_text;
button->priv->label_text = g_strdup (label);
button->priv->contents_invalid = TRUE;
if (label)
{
elided_label = _gtk_toolbar_elide_underscores (label);
accessible = gtk_widget_get_accessible (GTK_WIDGET (button->priv->button));
atk_object_set_name (accessible, elided_label);
g_free (elided_label);
}
g_free (old_label);
g_object_notify (G_OBJECT (button), "label");
}
/**
* gtk_tool_button_get_label:
* @button: a #GtkToolButton
*
* Returns the label used by the tool button, or %NULL if the tool button
* doesn’t have a label. The returned
* string is owned by GTK+, and must not be modified or freed.
*
* Returns: (nullable) (transfer none): The label, or %NULL
*
* Since: 2.4
**/
const gchar *
gtk_tool_button_get_label (GtkToolButton *button)
{
g_return_val_if_fail (GTK_IS_TOOL_BUTTON (button), NULL);
return button->priv->label_text;
}
/**
* gtk_tool_button_set_use_underline:
* @button: a #GtkToolButton
* @use_underline: whether the button label has the form “_Open”
*
* If set, an underline in the label property indicates that the next character
* should be used for the mnemonic accelerator key in the overflow menu. For
* example, if the label property is “_Open” and @use_underline is %TRUE,
* the label on the tool button will be “Open” and the item on the overflow
* menu will have an underlined “O”.
*
* Labels shown on tool buttons never have mnemonics on them; this property
* only affects the menu item on the overflow menu.
*
* Since: 2.4
**/
void
gtk_tool_button_set_use_underline (GtkToolButton *button,
gboolean use_underline)
{
g_return_if_fail (GTK_IS_TOOL_BUTTON (button));
use_underline = use_underline != FALSE;
if (use_underline != button->priv->use_underline)
{
button->priv->use_underline = use_underline;
button->priv->contents_invalid = TRUE;
g_object_notify (G_OBJECT (button), "use-underline");
}
}
/**
* gtk_tool_button_get_use_underline:
* @button: a #GtkToolButton
*
* Returns whether underscores in the label property are used as mnemonics
* on menu items on the overflow menu. See gtk_tool_button_set_use_underline().
*
* Returns: %TRUE if underscores in the label property are used as
* mnemonics on menu items on the overflow menu.
*
* Since: 2.4
**/
gboolean
gtk_tool_button_get_use_underline (GtkToolButton *button)
{
g_return_val_if_fail (GTK_IS_TOOL_BUTTON (button), FALSE);
return button->priv->use_underline;
}
/**
* gtk_tool_button_set_icon_name:
* @button: a #GtkToolButton
* @icon_name: (allow-none): the name of the themed icon
*
* Sets the icon for the tool button from a named themed icon.
* See the docs for #GtkIconTheme for more details.
* The #GtkToolButton:icon-name property only has an effect if not
* overridden by non-%NULL #GtkToolButton:label-widget or
* #GtkToolButton:icon-widget properties.
*
* Since: 2.8
**/
void
gtk_tool_button_set_icon_name (GtkToolButton *button,
const gchar *icon_name)
{
gchar *old_icon_name;
g_return_if_fail (GTK_IS_TOOL_BUTTON (button));
old_icon_name = button->priv->icon_name;
button->priv->icon_name = g_strdup (icon_name);
button->priv->contents_invalid = TRUE;
g_free (old_icon_name);
g_object_notify (G_OBJECT (button), "icon-name");
}
/**
* gtk_tool_button_get_icon_name:
* @button: a #GtkToolButton
*
* Returns the name of the themed icon for the tool button,
* see gtk_tool_button_set_icon_name().
*
* Returns: (nullable): the icon name or %NULL if the tool button has
* no themed icon
*
* Since: 2.8
**/
const gchar*
gtk_tool_button_get_icon_name (GtkToolButton *button)
{
g_return_val_if_fail (GTK_IS_TOOL_BUTTON (button), NULL);
return button->priv->icon_name;
}
/**
* gtk_tool_button_set_icon_widget:
* @button: a #GtkToolButton
* @icon_widget: (allow-none): the widget used as icon, or %NULL
*
* Sets @icon as the widget used as icon on @button.
*
* Since: 2.4
**/
void
gtk_tool_button_set_icon_widget (GtkToolButton *button,
GtkWidget *icon_widget)
{
g_return_if_fail (GTK_IS_TOOL_BUTTON (button));
g_return_if_fail (icon_widget == NULL || GTK_IS_WIDGET (icon_widget));
if (icon_widget != button->priv->icon_widget)
{
if (button->priv->icon_widget)
{
GtkWidget *parent;
parent = gtk_widget_get_parent (button->priv->icon_widget);
if (parent)
gtk_container_remove (GTK_CONTAINER (parent),
button->priv->icon_widget);
g_object_unref (button->priv->icon_widget);
}
if (icon_widget)
g_object_ref_sink (icon_widget);
button->priv->icon_widget = icon_widget;
button->priv->contents_invalid = TRUE;
g_object_notify (G_OBJECT (button), "icon-widget");
}
}
/**
* gtk_tool_button_set_label_widget:
* @button: a #GtkToolButton
* @label_widget: (allow-none): the widget used as label, or %NULL
*
* Sets @label_widget as the widget that will be used as the label
* for @button. If @label_widget is %NULL the #GtkToolButton:label property is used
* as label. If #GtkToolButton:label is also %NULL, @button does not have a label.
*
* Since: 2.4
**/
void
gtk_tool_button_set_label_widget (GtkToolButton *button,
GtkWidget *label_widget)
{
g_return_if_fail (GTK_IS_TOOL_BUTTON (button));
g_return_if_fail (label_widget == NULL || GTK_IS_WIDGET (label_widget));
if (label_widget != button->priv->label_widget)
{
if (button->priv->label_widget)
{
GtkWidget *parent;
parent = gtk_widget_get_parent (button->priv->label_widget);
if (parent)
gtk_container_remove (GTK_CONTAINER (parent),
button->priv->label_widget);
g_object_unref (button->priv->label_widget);
}
if (label_widget)
g_object_ref_sink (label_widget);
button->priv->label_widget = label_widget;
button->priv->contents_invalid = TRUE;
g_object_notify (G_OBJECT (button), "label-widget");
}
}
/**
* gtk_tool_button_get_label_widget:
* @button: a #GtkToolButton
*
* Returns the widget used as label on @button.
* See gtk_tool_button_set_label_widget().
*
* Returns: (nullable) (transfer none): The widget used as label
* on @button, or %NULL.
*
* Since: 2.4
**/
GtkWidget *
gtk_tool_button_get_label_widget (GtkToolButton *button)
{
g_return_val_if_fail (GTK_IS_TOOL_BUTTON (button), NULL);
return button->priv->label_widget;
}
/**
* gtk_tool_button_get_icon_widget:
* @button: a #GtkToolButton
*
* Return the widget used as icon widget on @button.
* See gtk_tool_button_set_icon_widget().
*
* Returns: (nullable) (transfer none): The widget used as icon
* on @button, or %NULL.
*
* Since: 2.4
**/
GtkWidget *
gtk_tool_button_get_icon_widget (GtkToolButton *button)
{
g_return_val_if_fail (GTK_IS_TOOL_BUTTON (button), NULL);
return button->priv->icon_widget;
}
GtkWidget *
_gtk_tool_button_get_button (GtkToolButton *button)
{
g_return_val_if_fail (GTK_IS_TOOL_BUTTON (button), NULL);
return button->priv->button;
}
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