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e8b830a3dd
gtk/tests/testtoolbar.c
Matthias Clasen e8b830a3dd dragsource: Reshuffle api a bit 
Remove arguments from the constructor.

For actions, we now default to COPY, which is the most common one
that we should enable by default (MOVE requires handling deletion
on the the source side, and ASK only makes sense if we have
multiple actions).

For the content provider, we add a new ::prepare signal where
it should be provided just-in-time.
2020-01-08 18:48:21 -05:00

641 lines
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/* testtoolbar.c
*
* Copyright (C) 2002 Anders Carlsson <andersca@codefactory.se>
* 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 Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gtk/gtk.h>
static void
change_orientation (GtkWidget *button, GtkWidget *toolbar)
{
GtkWidget *grid;
GtkOrientation orientation;
grid = gtk_widget_get_parent (toolbar);
if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (button)))
orientation = GTK_ORIENTATION_VERTICAL;
else
orientation = GTK_ORIENTATION_HORIZONTAL;
g_object_ref (toolbar);
gtk_container_remove (GTK_CONTAINER (grid), toolbar);
gtk_orientable_set_orientation (GTK_ORIENTABLE (toolbar), orientation);
if (orientation == GTK_ORIENTATION_HORIZONTAL)
{
gtk_widget_set_hexpand (toolbar, TRUE);
gtk_widget_set_vexpand (toolbar, FALSE);
gtk_grid_attach (GTK_GRID (grid), toolbar, 0, 0, 2, 1);
}
else
{
gtk_widget_set_hexpand (toolbar, FALSE);
gtk_widget_set_vexpand (toolbar, TRUE);
gtk_grid_attach (GTK_GRID (grid), toolbar, 0, 0, 1, 5);
}
g_object_unref (toolbar);
}
static void
change_show_arrow (GtkWidget *button, GtkWidget *toolbar)
{
gtk_toolbar_set_show_arrow (GTK_TOOLBAR (toolbar),
gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (button)));
}
static void
set_toolbar_style_toggled (GtkCheckButton *button, GtkToolbar *toolbar)
{
GtkWidget *option_menu;
int style;
option_menu = g_object_get_data (G_OBJECT (button), "option-menu");
if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (button)))
{
style = gtk_combo_box_get_active (GTK_COMBO_BOX (option_menu));
gtk_toolbar_set_style (toolbar, style);
gtk_widget_set_sensitive (option_menu, TRUE);
}
else
{
gtk_toolbar_unset_style (toolbar);
gtk_widget_set_sensitive (option_menu, FALSE);
}
}
static void
change_toolbar_style (GtkWidget *option_menu, GtkWidget *toolbar)
{
GtkToolbarStyle style;
style = gtk_combo_box_get_active (GTK_COMBO_BOX (option_menu));
gtk_toolbar_set_style (GTK_TOOLBAR (toolbar), style);
}
static void
set_visible_func(GtkTreeViewColumn *tree_column, GtkCellRenderer *cell,
GtkTreeModel *model, GtkTreeIter *iter, gpointer data)
{
GtkToolItem *tool_item;
gboolean visible;
gtk_tree_model_get (model, iter, 0, &tool_item, -1);
g_object_get (tool_item, "visible", &visible, NULL);
g_object_set (cell, "active", visible, NULL);
g_object_unref (tool_item);
}
static void
visibile_toggled(GtkCellRendererToggle *cell, const gchar *path_str,
GtkTreeModel *model)
{
GtkTreePath *path;
GtkTreeIter iter;
GtkToolItem *tool_item;
gboolean visible;
path = gtk_tree_path_new_from_string (path_str);
gtk_tree_model_get_iter (model, &iter, path);
gtk_tree_model_get (model, &iter, 0, &tool_item, -1);
g_object_get (tool_item, "visible", &visible, NULL);
g_object_set (tool_item, "visible", !visible, NULL);
g_object_unref (tool_item);
gtk_tree_model_row_changed (model, path, &iter);
gtk_tree_path_free (path);
}
static void
set_expand_func(GtkTreeViewColumn *tree_column, GtkCellRenderer *cell,
GtkTreeModel *model, GtkTreeIter *iter, gpointer data)
{
GtkToolItem *tool_item;
gtk_tree_model_get (model, iter, 0, &tool_item, -1);
g_object_set (cell, "active", gtk_tool_item_get_expand (tool_item), NULL);
g_object_unref (tool_item);
}
static void
expand_toggled(GtkCellRendererToggle *cell, const gchar *path_str,
GtkTreeModel *model)
{
GtkTreePath *path;
GtkTreeIter iter;
GtkToolItem *tool_item;
path = gtk_tree_path_new_from_string (path_str);
gtk_tree_model_get_iter (model, &iter, path);
gtk_tree_model_get (model, &iter, 0, &tool_item, -1);
gtk_tool_item_set_expand (tool_item, !gtk_tool_item_get_expand (tool_item));
g_object_unref (tool_item);
gtk_tree_model_row_changed (model, path, &iter);
gtk_tree_path_free (path);
}
static void
set_homogeneous_func(GtkTreeViewColumn *tree_column, GtkCellRenderer *cell,
GtkTreeModel *model, GtkTreeIter *iter, gpointer data)
{
GtkToolItem *tool_item;
gtk_tree_model_get (model, iter, 0, &tool_item, -1);
g_object_set (cell, "active", gtk_tool_item_get_homogeneous (tool_item), NULL);
g_object_unref (tool_item);
}
static void
homogeneous_toggled(GtkCellRendererToggle *cell, const gchar *path_str,
GtkTreeModel *model)
{
GtkTreePath *path;
GtkTreeIter iter;
GtkToolItem *tool_item;
path = gtk_tree_path_new_from_string (path_str);
gtk_tree_model_get_iter (model, &iter, path);
gtk_tree_model_get (model, &iter, 0, &tool_item, -1);
gtk_tool_item_set_homogeneous (tool_item, !gtk_tool_item_get_homogeneous (tool_item));
g_object_unref (tool_item);
gtk_tree_model_row_changed (model, path, &iter);
gtk_tree_path_free (path);
}
static void
set_important_func(GtkTreeViewColumn *tree_column, GtkCellRenderer *cell,
GtkTreeModel *model, GtkTreeIter *iter, gpointer data)
{
GtkToolItem *tool_item;
gtk_tree_model_get (model, iter, 0, &tool_item, -1);
g_object_set (cell, "active", gtk_tool_item_get_is_important (tool_item), NULL);
g_object_unref (tool_item);
}
static void
important_toggled(GtkCellRendererToggle *cell, const gchar *path_str,
GtkTreeModel *model)
{
GtkTreePath *path;
GtkTreeIter iter;
GtkToolItem *tool_item;
path = gtk_tree_path_new_from_string (path_str);
gtk_tree_model_get_iter (model, &iter, path);
gtk_tree_model_get (model, &iter, 0, &tool_item, -1);
gtk_tool_item_set_is_important (tool_item, !gtk_tool_item_get_is_important (tool_item));
g_object_unref (tool_item);
gtk_tree_model_row_changed (model, path, &iter);
gtk_tree_path_free (path);
}
static GtkListStore *
create_items_list (GtkWidget **tree_view_p)
{
GtkWidget *tree_view;
GtkListStore *list_store;
GtkCellRenderer *cell;
list_store = gtk_list_store_new (2, GTK_TYPE_TOOL_ITEM, G_TYPE_STRING);
tree_view = gtk_tree_view_new_with_model (GTK_TREE_MODEL (list_store));
gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (tree_view),
-1, "Tool Item",
gtk_cell_renderer_text_new (),
"text", 1, NULL);
cell = gtk_cell_renderer_toggle_new ();
g_signal_connect (cell, "toggled", G_CALLBACK (visibile_toggled),
list_store);
gtk_tree_view_insert_column_with_data_func (GTK_TREE_VIEW (tree_view),
-1, "Visible",
cell,
set_visible_func, NULL, NULL);
cell = gtk_cell_renderer_toggle_new ();
g_signal_connect (cell, "toggled", G_CALLBACK (expand_toggled),
list_store);
gtk_tree_view_insert_column_with_data_func (GTK_TREE_VIEW (tree_view),
-1, "Expand",
cell,
set_expand_func, NULL, NULL);
cell = gtk_cell_renderer_toggle_new ();
g_signal_connect (cell, "toggled", G_CALLBACK (homogeneous_toggled),
list_store);
gtk_tree_view_insert_column_with_data_func (GTK_TREE_VIEW (tree_view),
-1, "Homogeneous",
cell,
set_homogeneous_func, NULL,NULL);
cell = gtk_cell_renderer_toggle_new ();
g_signal_connect (cell, "toggled", G_CALLBACK (important_toggled),
list_store);
gtk_tree_view_insert_column_with_data_func (GTK_TREE_VIEW (tree_view),
-1, "Important",
cell,
set_important_func, NULL,NULL);
g_object_unref (list_store);
*tree_view_p = tree_view;
return list_store;
}
static void
add_item_to_list (GtkListStore *store, GtkToolItem *item, const gchar *text)
{
GtkTreeIter iter;
gtk_list_store_append (store, &iter);
gtk_list_store_set (store, &iter,
0, item,
1, text,
-1);
}
static void
bold_toggled (GtkToggleToolButton *button)
{
g_message ("Bold toggled (active=%d)",
gtk_toggle_tool_button_get_active (button));
}
static gboolean
toolbar_drag_drop (GtkDropTarget *dest,
gint x, gint y,
GtkWidget *label)
{
GtkWidget *widget = gtk_event_controller_get_widget (GTK_EVENT_CONTROLLER (dest));
gchar buf[32];
g_snprintf(buf, sizeof(buf), "%d",
gtk_toolbar_get_drop_index (GTK_TOOLBAR (widget), x, y));
gtk_label_set_label (GTK_LABEL (label), buf);
return TRUE;
}
static const char *target_table[] = {
"application/x-toolbar-item"
};
static void
rtl_toggled (GtkCheckButton *check)
{
if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (check)))
gtk_widget_set_default_direction (GTK_TEXT_DIR_RTL);
else
gtk_widget_set_default_direction (GTK_TEXT_DIR_LTR);
}
static GtkToolItem *drag_item = NULL;
static gboolean
toolbar_drag_motion (GtkDropTarget *dest,
gint x,
gint y,
GtkToolbar *toolbar)
{
GdkDrop *drop = gtk_drop_target_get_drop (dest);
gint index;
if (!drag_item)
{
drag_item = gtk_tool_button_new (NULL, "A quite long button");
g_object_ref_sink (g_object_ref (drag_item));
}
gdk_drop_status (drop, GDK_ACTION_MOVE);
index = gtk_toolbar_get_drop_index (toolbar, x, y);
gtk_toolbar_set_drop_highlight_item (toolbar, drag_item, index);
return TRUE;
}
static void
toolbar_drag_leave (GtkDropTarget *dest,
GtkToolbar *toolbar)
{
if (drag_item)
{
g_object_unref (drag_item);
drag_item = NULL;
}
gtk_toolbar_set_drop_highlight_item (toolbar, NULL, 0);
}
static gboolean
timeout_cb (GtkWidget *widget)
{
static gboolean sensitive = TRUE;
sensitive = !sensitive;
gtk_widget_set_sensitive (widget, sensitive);
return TRUE;
}
static gboolean
timeout_cb1 (GtkWidget *widget)
{
static gboolean sensitive = TRUE;
sensitive = !sensitive;
gtk_widget_set_sensitive (widget, sensitive);
return TRUE;
}
gint
main (gint argc, gchar **argv)
{
GtkWidget *window, *toolbar, *grid, *treeview, *scrolled_window;
GtkWidget *hbox, *hbox1, *hbox2, *checkbox, *option_menu, *menu;
gint i;
GdkContentFormats *targets;
GdkContentProvider *content;
GtkDragSource *source;
GtkDropTarget *dest;
static const gchar *toolbar_styles[] = { "icons", "text", "both (vertical)",
"both (horizontal)" };
GtkToolItem *item;
GtkListStore *store;
GtkWidget *image;
GtkWidget *menuitem;
GtkWidget *box;
GtkWidget *button;
GtkWidget *label;
GIcon *gicon;
GSList *group;
gtk_init ();
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
g_signal_connect (window, "destroy", G_CALLBACK(gtk_main_quit), NULL);
grid = gtk_grid_new ();
gtk_container_add (GTK_CONTAINER (window), grid);
toolbar = gtk_toolbar_new ();
gtk_grid_attach (GTK_GRID (grid), toolbar, 0, 0, 2, 1);
hbox1 = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 3);
gtk_grid_attach (GTK_GRID (grid), hbox1, 1, 1, 1, 1);
hbox2 = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 2);
gtk_grid_attach (GTK_GRID (grid), hbox2, 1, 2, 1, 1);
checkbox = gtk_check_button_new_with_mnemonic("_Vertical");
gtk_container_add (GTK_CONTAINER (hbox1), checkbox);
g_signal_connect (checkbox, "toggled",
G_CALLBACK (change_orientation), toolbar);
checkbox = gtk_check_button_new_with_mnemonic("_Show Arrow");
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (checkbox), TRUE);
gtk_container_add (GTK_CONTAINER (hbox1), checkbox);
g_signal_connect (checkbox, "toggled",
G_CALLBACK (change_show_arrow), toolbar);
checkbox = gtk_check_button_new_with_mnemonic("_Set Toolbar Style:");
g_signal_connect (checkbox, "toggled", G_CALLBACK (set_toolbar_style_toggled), toolbar);
gtk_container_add (GTK_CONTAINER (hbox1), checkbox);
option_menu = gtk_combo_box_text_new ();
gtk_widget_set_sensitive (option_menu, FALSE);
g_object_set_data (G_OBJECT (checkbox), "option-menu", option_menu);
for (i = 0; i < G_N_ELEMENTS (toolbar_styles); i++)
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (option_menu), toolbar_styles[i]);
gtk_combo_box_set_active (GTK_COMBO_BOX (option_menu),
gtk_toolbar_get_style (GTK_TOOLBAR (toolbar)));
gtk_container_add (GTK_CONTAINER (hbox2), option_menu);
g_signal_connect (option_menu, "changed",
G_CALLBACK (change_toolbar_style), toolbar);
scrolled_window = gtk_scrolled_window_new (NULL, NULL);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window),
GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
gtk_widget_set_hexpand (scrolled_window, TRUE);
gtk_widget_set_vexpand (scrolled_window, TRUE);
gtk_grid_attach (GTK_GRID (grid), scrolled_window, 1, 3, 1, 1);
store = create_items_list (&treeview);
gtk_container_add (GTK_CONTAINER (scrolled_window), treeview);
item = gtk_tool_button_new (NULL, NULL);
gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item), "document-new");
gtk_tool_button_set_label (GTK_TOOL_BUTTON (item), "Custom label");
add_item_to_list (store, item, "New");
gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
g_timeout_add (3000, (GSourceFunc) timeout_cb, item);
gtk_tool_item_set_expand (item, TRUE);
menu = gtk_popover_new (NULL);
box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
gtk_container_add (GTK_CONTAINER (menu), box);
for (i = 0; i < 20; i++)
{
char *text;
text = g_strdup_printf ("Menuitem %d", i);
menuitem = gtk_button_new_with_label (text);
g_free (text);
gtk_container_add (GTK_CONTAINER (box), menuitem);
}
item = gtk_menu_tool_button_new (NULL, NULL);
gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item), "document-open");
gtk_tool_button_set_label (GTK_TOOL_BUTTON (item), "Open");
gtk_menu_tool_button_set_popover (GTK_MENU_TOOL_BUTTON (item), menu);
add_item_to_list (store, item, "Open");
gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
g_timeout_add (3000, (GSourceFunc) timeout_cb1, item);
menu = gtk_popover_new (NULL);
box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
gtk_container_add (GTK_CONTAINER (menu), box);
for (i = 0; i < 20; i++)
{
char *text;
text = g_strdup_printf ("A%d", i);
menuitem = gtk_button_new_with_label (text);
g_free (text);
gtk_container_add (GTK_CONTAINER (box), menuitem);
}
item = gtk_menu_tool_button_new (NULL, NULL);
gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item), "go-previous");
gtk_tool_button_set_label (GTK_TOOL_BUTTON (item), "Back");
gtk_menu_tool_button_set_popover (GTK_MENU_TOOL_BUTTON (item), menu);
add_item_to_list (store, item, "BackWithHistory");
gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
item = gtk_separator_tool_item_new ();
add_item_to_list (store, item, "-----");
gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
image = gtk_image_new_from_icon_name ("dialog-warning");
gtk_image_set_icon_size (GTK_IMAGE (image), GTK_ICON_SIZE_LARGE);
item = gtk_tool_item_new ();
gtk_widget_show (image);
gtk_container_add (GTK_CONTAINER (item), image);
add_item_to_list (store, item, "(Custom Item)");
gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
item = gtk_tool_button_new (NULL, NULL);
gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item), "go-previous");
gtk_tool_button_set_label (GTK_TOOL_BUTTON (item), "Back");
add_item_to_list (store, item, "Back");
gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
item = gtk_separator_tool_item_new ();
add_item_to_list (store, item, "-----");
gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
item = gtk_tool_button_new (NULL, NULL);
gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item), "go-next");
gtk_tool_button_set_label (GTK_TOOL_BUTTON (item), "Forward");
add_item_to_list (store, item, "Forward");
gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
item = gtk_toggle_tool_button_new ();
gtk_tool_button_set_label (GTK_TOOL_BUTTON (item), "Bold");
gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item), "format-text-bold");
g_signal_connect (item, "toggled", G_CALLBACK (bold_toggled), NULL);
add_item_to_list (store, item, "Bold");
gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
gtk_widget_set_sensitive (GTK_WIDGET (item), FALSE);
item = gtk_separator_tool_item_new ();
add_item_to_list (store, item, "-----");
gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
gtk_tool_item_set_expand (item, TRUE);
gtk_separator_tool_item_set_draw (GTK_SEPARATOR_TOOL_ITEM (item), FALSE);
g_assert (gtk_toolbar_get_nth_item (GTK_TOOLBAR (toolbar), 0) != 0);
item = gtk_radio_tool_button_new (NULL);
gtk_tool_button_set_label (GTK_TOOL_BUTTON (item), "Left");
gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item), "format-justify-left");
group = gtk_radio_tool_button_get_group (GTK_RADIO_TOOL_BUTTON (item));
add_item_to_list (store, item, "Left");
gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
item = gtk_radio_tool_button_new (group);
gtk_tool_button_set_label (GTK_TOOL_BUTTON (item), "Center");
gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item), "format-justify-center");
group = gtk_radio_tool_button_get_group (GTK_RADIO_TOOL_BUTTON (item));
add_item_to_list (store, item, "Center");
gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
item = gtk_radio_tool_button_new (group);
gtk_tool_button_set_label (GTK_TOOL_BUTTON (item), "Right");
gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item), "format-justify-right");
add_item_to_list (store, item, "Right");
gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
item = gtk_tool_button_new (gtk_image_new_from_file ("apple-red.png"), "_Apple");
add_item_to_list (store, item, "Apple");
gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
gtk_tool_button_set_use_underline (GTK_TOOL_BUTTON (item), TRUE);
gicon = g_content_type_get_icon ("video/ogg");
image = gtk_image_new_from_gicon (gicon);
g_object_unref (gicon);
item = gtk_tool_button_new (image, "Video");
add_item_to_list (store, item, "Video");
gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
image = gtk_image_new_from_icon_name ("utilities-terminal");
item = gtk_tool_button_new (image, "Terminal");
add_item_to_list (store, item, "Terminal");
gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
image = gtk_spinner_new ();
gtk_spinner_start (GTK_SPINNER (image));
item = gtk_tool_button_new (image, "Spinner");
add_item_to_list (store, item, "Spinner");
gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 5);
gtk_widget_set_hexpand (hbox, TRUE);
gtk_grid_attach (GTK_GRID (grid), hbox, 1, 4, 1, 1);
button = gtk_button_new_with_label ("Drag me to the toolbar");
gtk_container_add (GTK_CONTAINER (hbox), button);
label = gtk_label_new ("Drop index:");
gtk_container_add (GTK_CONTAINER (hbox), label);
label = gtk_label_new ("");
gtk_widget_set_hexpand (label, TRUE);
gtk_widget_set_halign (label, GTK_ALIGN_START);
gtk_container_add (GTK_CONTAINER (hbox), label);
checkbox = gtk_check_button_new_with_mnemonic("_Right to left");
if (gtk_widget_get_default_direction () == GTK_TEXT_DIR_RTL)
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (checkbox), TRUE);
else
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (checkbox), FALSE);
g_signal_connect (checkbox, "toggled", G_CALLBACK (rtl_toggled), NULL);
gtk_container_add (GTK_CONTAINER (hbox), checkbox);
targets = gdk_content_formats_new (target_table, G_N_ELEMENTS (target_table));
content = gdk_content_provider_new_for_bytes (target_table[0], g_bytes_new ("", 1));
source = gtk_drag_source_new ();
gtk_drag_source_set_content (source, content);
gtk_drag_source_set_actions (source, GDK_ACTION_MOVE);
g_object_unref (content);
gtk_drag_source_attach (source, button, GDK_BUTTON1_MASK);
dest = gtk_drop_target_new (targets, GDK_ACTION_MOVE);
g_signal_connect (dest, "drag_motion", G_CALLBACK (toolbar_drag_motion), toolbar);
g_signal_connect (dest, "drag_leave", G_CALLBACK (toolbar_drag_leave), toolbar);
g_signal_connect (dest, "drag_drop", G_CALLBACK (toolbar_drag_drop), label);
gtk_widget_add_controller (toolbar, GTK_EVENT_CONTROLLER (dest));
gdk_content_formats_unref (targets);
gtk_widget_show (window);
g_signal_connect (window, "destroy", G_CALLBACK (gtk_main_quit), NULL);
gtk_main ();
return 0;
}
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