static void
drawing_area_hierarchy_changed (GtkWidget *widget,
GtkWidget *previous_toplevel)
{
DrawingArea *area = (DrawingArea *) widget;
GSimpleActionGroup *action_group;
GSimpleAction *action;
GtkWidget *toplevel;
gint i;
if (previous_toplevel && area->pad_controller)
{
gtk_widget_remove_controller (previous_toplevel,
GTK_EVENT_CONTROLLER (area->pad_controller));
area->pad_controller = NULL;
}
toplevel = gtk_widget_get_toplevel (GTK_WIDGET (area));
if (!GTK_IS_WINDOW (toplevel))
return;
action_group = g_simple_action_group_new ();
area->pad_controller = gtk_pad_controller_new (G_ACTION_GROUP (action_group),
NULL);
for (i = 0; i < G_N_ELEMENTS (pad_actions); i++)
{
if (pad_actions[i].type == GTK_PAD_ACTION_BUTTON)
{
action = g_simple_action_new (pad_actions[i].action_name, NULL);
g_object_set_data (G_OBJECT (action), "color",
(gpointer) pad_colors[i]);
g_signal_connect (action, "activate",
G_CALLBACK (on_pad_button_activate), area);
}
else
{
action = g_simple_action_new_stateful (pad_actions[i].action_name,
G_VARIANT_TYPE_DOUBLE, NULL);
g_signal_connect (action, "activate",
G_CALLBACK (on_pad_knob_change), area);
}
g_action_map_add_action (G_ACTION_MAP (action_group), G_ACTION (action));
g_object_unref (action);
}
gtk_pad_controller_set_action_entries (area->pad_controller, pad_actions,
G_N_ELEMENTS (pad_actions));
gtk_widget_add_controller (toplevel,
GTK_EVENT_CONTROLLER (area->pad_controller));
}
static void
gtk_app_chooser_widget_init (GtkAppChooserWidget *self)
{
GtkTreeSelection *selection;
GtkTreeModel *sort;
GtkGesture *gesture;
self->priv = gtk_app_chooser_widget_get_instance_private (self);
gtk_widget_set_has_surface (GTK_WIDGET (self), FALSE);
gtk_widget_init_template (GTK_WIDGET (self));
/* Various parts of the GtkTreeView code need custom code to setup, mostly
* because we lack signals to connect to, or properties to set.
*/
selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (self->priv->program_list));
gtk_tree_selection_set_select_function (selection, gtk_app_chooser_selection_func,
self, NULL);
sort = gtk_tree_view_get_model (GTK_TREE_VIEW (self->priv->program_list));
gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE (sort),
COLUMN_NAME,
GTK_SORT_ASCENDING);
gtk_tree_sortable_set_sort_func (GTK_TREE_SORTABLE (sort),
COLUMN_NAME,
gtk_app_chooser_sort_func,
self, NULL);
gtk_tree_view_set_search_column (GTK_TREE_VIEW (self->priv->program_list), COLUMN_NAME);
gtk_tree_view_set_search_equal_func (GTK_TREE_VIEW (self->priv->program_list),
gtk_app_chooser_search_equal_func,
NULL, NULL);
gtk_tree_view_column_set_cell_data_func (self->priv->column,
self->priv->secondary_padding,
padding_cell_renderer_func,
NULL, NULL);
self->priv->monitor = g_app_info_monitor_get ();
g_signal_connect (self->priv->monitor, "changed",
G_CALLBACK (app_info_changed), self);
gesture = gtk_gesture_multi_press_new ();
gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (gesture), GDK_BUTTON_SECONDARY);
g_signal_connect (gesture, "pressed",
G_CALLBACK (gtk_app_chooser_row_pressed_cb), self);
gtk_widget_add_controller (self->priv->program_list, GTK_EVENT_CONTROLLER (gesture));
}
static void
drawing_area_init (DrawingArea *area)
{
GtkGesture *gesture;
gtk_widget_set_has_surface (GTK_WIDGET (area), FALSE);
gesture = gtk_gesture_stylus_new ();
g_signal_connect (gesture, "down",
G_CALLBACK (stylus_gesture_down), area);
g_signal_connect (gesture, "motion",
G_CALLBACK (stylus_gesture_motion), area);
gtk_widget_add_controller (GTK_WIDGET (area), GTK_EVENT_CONTROLLER (gesture));
area->draw_color = (GdkRGBA) { 0, 0, 0, 1 };
}
GtkWidget *
do_drawingarea (GtkWidget *do_widget)
{
GtkWidget *frame;
GtkWidget *vbox;
GtkWidget *da;
GtkWidget *label;
GtkGesture *drag;
if (!window)
{
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_display (GTK_WINDOW (window),
gtk_widget_get_display (do_widget));
gtk_window_set_title (GTK_WINDOW (window), "Drawing Area");
g_signal_connect (window, "destroy",
G_CALLBACK (close_window), NULL);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 8);
g_object_set (vbox, "margin", 16, NULL);
gtk_container_add (GTK_CONTAINER (window), vbox);
/*
* Create the checkerboard area
*/
label = gtk_label_new (NULL);
gtk_label_set_markup (GTK_LABEL (label),
"<u>Checkerboard pattern</u>");
gtk_container_add (GTK_CONTAINER (vbox), label);
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
gtk_widget_set_vexpand (frame, TRUE);
gtk_container_add (GTK_CONTAINER (vbox), frame);
da = gtk_drawing_area_new ();
gtk_drawing_area_set_content_width (GTK_DRAWING_AREA (da), 100);
gtk_drawing_area_set_content_height (GTK_DRAWING_AREA (da), 100);
gtk_drawing_area_set_draw_func (GTK_DRAWING_AREA (da), checkerboard_draw, NULL, NULL);
gtk_container_add (GTK_CONTAINER (frame), da);
/*
* Create the scribble area
*/
label = gtk_label_new (NULL);
gtk_label_set_markup (GTK_LABEL (label),
"<u>Scribble area</u>");
gtk_container_add (GTK_CONTAINER (vbox), label);
frame = gtk_frame_new (NULL);
gtk_widget_set_vexpand (frame, TRUE);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
gtk_container_add (GTK_CONTAINER (vbox), frame);
da = gtk_drawing_area_new ();
gtk_drawing_area_set_content_width (GTK_DRAWING_AREA (da), 100);
gtk_drawing_area_set_content_height (GTK_DRAWING_AREA (da), 100);
gtk_drawing_area_set_draw_func (GTK_DRAWING_AREA (da), scribble_draw, NULL, NULL);
gtk_container_add (GTK_CONTAINER (frame), da);
g_signal_connect (da, "size-allocate",
G_CALLBACK (scribble_size_allocate), NULL);
drag = gtk_gesture_drag_new ();
gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (drag), GDK_BUTTON_PRIMARY);
gtk_widget_add_controller (da, GTK_EVENT_CONTROLLER (drag));
g_signal_connect (drag, "drag-begin", G_CALLBACK (drag_begin), da);
g_signal_connect (drag, "drag-update", G_CALLBACK (drag_update), da);
g_signal_connect (drag, "drag-end", G_CALLBACK (drag_end), da);
}
if (!gtk_widget_get_visible (window))
gtk_widget_show (window);
else
gtk_widget_destroy (window);
return window;
}
GtkWidget *
do_clipboard (GtkWidget *do_widget)
{
if (!window)
{
GtkWidget *vbox, *hbox;
GtkWidget *label;
GtkWidget *entry, *button;
GtkWidget *image;
GtkGesture *gesture;
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_display (GTK_WINDOW (window),
gtk_widget_get_display (do_widget));
gtk_window_set_title (GTK_WINDOW (window), "Clipboard");
g_signal_connect (window, "destroy",
G_CALLBACK (gtk_widget_destroyed), &window);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
g_object_set (vbox, "margin", 8, NULL);
gtk_container_add (GTK_CONTAINER (window), vbox);
label = gtk_label_new ("\"Copy\" will copy the text\nin the entry to the clipboard");
gtk_container_add (GTK_CONTAINER (vbox), label);
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 4);
g_object_set (hbox, "margin", 8, NULL);
gtk_container_add (GTK_CONTAINER (vbox), hbox);
/* Create the first entry */
entry = gtk_entry_new ();
gtk_container_add (GTK_CONTAINER (hbox), entry);
/* Create the button */
button = gtk_button_new_with_mnemonic (_("_Copy"));
gtk_container_add (GTK_CONTAINER (hbox), button);
g_signal_connect (button, "clicked",
G_CALLBACK (copy_button_clicked), entry);
label = gtk_label_new ("\"Paste\" will paste the text from the clipboard to the entry");
gtk_container_add (GTK_CONTAINER (vbox), label);
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 4);
g_object_set (hbox, "margin", 8, NULL);
gtk_container_add (GTK_CONTAINER (vbox), hbox);
/* Create the second entry */
entry = gtk_entry_new ();
gtk_container_add (GTK_CONTAINER (hbox), entry);
/* Create the button */
button = gtk_button_new_with_mnemonic (_("_Paste"));
gtk_container_add (GTK_CONTAINER (hbox), button);
g_signal_connect (button, "clicked",
G_CALLBACK (paste_button_clicked), entry);
label = gtk_label_new ("Images can be transferred via the clipboard, too");
gtk_container_add (GTK_CONTAINER (vbox), label);
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 4);
g_object_set (hbox, "margin", 8, NULL);
gtk_container_add (GTK_CONTAINER (vbox), hbox);
/* Create the first image */
image = gtk_image_new_from_icon_name ("dialog-warning");
gtk_container_add (GTK_CONTAINER (hbox), image);
/* make image a drag source */
gtk_drag_source_set (image, GDK_BUTTON1_MASK, NULL, GDK_ACTION_COPY);
gtk_drag_source_add_image_targets (image);
g_signal_connect (image, "drag-begin",
G_CALLBACK (drag_begin), image);
g_signal_connect (image, "drag-data-get",
G_CALLBACK (drag_data_get), image);
/* accept drops on image */
gtk_drag_dest_set (image, GTK_DEST_DEFAULT_ALL,
NULL, GDK_ACTION_COPY);
gtk_drag_dest_add_image_targets (image);
g_signal_connect (image, "drag-data-received",
G_CALLBACK (drag_data_received), image);
/* context menu on image */
gesture = gtk_gesture_multi_press_new ();
gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (gesture), GDK_BUTTON_SECONDARY);
g_signal_connect (gesture, "pressed", G_CALLBACK (pressed_cb), image);
gtk_widget_add_controller (image, GTK_EVENT_CONTROLLER (gesture));
/* Create the second image */
image = gtk_image_new_from_icon_name ("process-stop");
gtk_container_add (GTK_CONTAINER (hbox), image);
/* make image a drag source */
gtk_drag_source_set (image, GDK_BUTTON1_MASK, NULL, GDK_ACTION_COPY);
gtk_drag_source_add_image_targets (image);
g_signal_connect (image, "drag-begin",
G_CALLBACK (drag_begin), image);
g_signal_connect (image, "drag-data-get",
G_CALLBACK (drag_data_get), image);
/* accept drops on image */
gtk_drag_dest_set (image, GTK_DEST_DEFAULT_ALL,
NULL, GDK_ACTION_COPY);
gtk_drag_dest_add_image_targets (image);
g_signal_connect (image, "drag-data-received",
G_CALLBACK (drag_data_received), image);
/* context menu on image */
gesture = gtk_gesture_multi_press_new ();
gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (gesture), GDK_BUTTON_SECONDARY);
g_signal_connect (gesture, "pressed", G_CALLBACK (pressed_cb), image);
gtk_widget_add_controller (image, GTK_EVENT_CONTROLLER (gesture));
}
if (!gtk_widget_get_visible (window))
gtk_widget_show (window);
else
gtk_widget_destroy (window);
return window;
}
