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/* Pickers and Launchers
* #Keywords: GtkColorDialog, GtkFontDialog, GtkFileDialog, GtkFileLauncher, GtkUriLauncher
*
* The dialogs are mainly intended for use in preference dialogs.
* They allow to select colors, fonts and applications.
*
* The launchers let you open files or URIs in applications that
* can handle them.
*/
#include <gtk/gtk.h>
static GtkWidget *app_picker;
static void
set_file (GFile *file,
gpointer data)
{
char *name;
if (!file)
{
gtk_widget_set_sensitive (app_picker, FALSE);
g_object_set_data (G_OBJECT (app_picker), "file", NULL);
return;
}
name = g_file_get_basename (file);
gtk_label_set_label (GTK_LABEL (data), name);
g_free (name);
gtk_widget_set_sensitive (app_picker, TRUE);
g_object_set_data_full (G_OBJECT (app_picker), "file", g_object_ref (file), g_object_unref);
}
static void
file_opened (GObject *source,
GAsyncResult *result,
void *data)
{
GFile *file;
GError *error = NULL;
file = gtk_file_dialog_open_finish (GTK_FILE_DIALOG (source), result, &error);
if (!file)
{
g_print ("%s\n", error->message);
g_error_free (error);
}
set_file (file, data);
}
static gboolean
abort_mission (gpointer data)
{
GCancellable *cancellable = data;
g_cancellable_cancel (cancellable);
return G_SOURCE_REMOVE;
}
static void
open_file (GtkButton *picker,
GtkLabel *label)
{
GtkWindow *parent = GTK_WINDOW (gtk_widget_get_root (GTK_WIDGET (picker)));
GtkFileDialog *dialog;
GCancellable *cancellable;
dialog = gtk_file_dialog_new ();
cancellable = g_cancellable_new ();
g_timeout_add_seconds_full (G_PRIORITY_DEFAULT,
20,
abort_mission, g_object_ref (cancellable), g_object_unref);
gtk_file_dialog_open (dialog, parent, cancellable, file_opened, label);
g_object_unref (cancellable);
g_object_unref (dialog);
}
static void
open_app_done (GObject *source,
GAsyncResult *result,
gpointer data)
{
GtkFileLauncher *launcher = GTK_FILE_LAUNCHER (source);
GError *error = NULL;
if (!gtk_file_launcher_launch_finish (launcher, result, &error))
{
g_print ("%s\n", error->message);
g_error_free (error);
}
}
static void
open_app (GtkButton *picker)
{
GtkWindow *parent = GTK_WINDOW (gtk_widget_get_root (GTK_WIDGET (picker)));
GtkFileLauncher *launcher;
GFile *file;
file = G_FILE (g_object_get_data (G_OBJECT (picker), "file"));
launcher = gtk_file_launcher_new (file);
gtk_file_launcher_launch (launcher, parent, NULL, open_app_done, NULL);
g_object_unref (launcher);
}
static void
open_uri_done (GObject *source,
GAsyncResult *result,
gpointer data)
{
GtkUriLauncher *launcher = GTK_URI_LAUNCHER (source);
GError *error = NULL;
if (!gtk_uri_launcher_launch_finish (launcher, result, &error))
{
g_print ("%s\n", error->message);
g_error_free (error);
}
}
static void
launch_uri (GtkButton *picker)
{
GtkWindow *parent = GTK_WINDOW (gtk_widget_get_root (GTK_WIDGET (picker)));
GtkUriLauncher *launcher;
launcher = gtk_uri_launcher_new ("http://www.gtk.org");
gtk_uri_launcher_launch (launcher, parent, NULL, open_uri_done, NULL);
g_object_unref (launcher);
}
static gboolean
on_drop (GtkDropTarget *target,
const GValue *value,
double x,
double y,
gpointer data)
{
if (G_VALUE_HOLDS (value, G_TYPE_FILE))
{
set_file (g_value_get_object (value), data);
return TRUE;
}
return FALSE;
}
GtkWidget *
do_pickers (GtkWidget *do_widget)
{
static GtkWidget *window = NULL;
GtkWidget *table, *label, *picker, *button;
GtkDropTarget *drop_target;
if (!window)
{
window = gtk_window_new ();
gtk_window_set_display (GTK_WINDOW (window),
gtk_widget_get_display (do_widget));
gtk_window_set_title (GTK_WINDOW (window), "Pickers and Launchers");
g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
table = gtk_grid_new ();
gtk_widget_set_margin_start (table, 20);
gtk_widget_set_margin_end (table, 20);
gtk_widget_set_margin_top (table, 20);
gtk_widget_set_margin_bottom (table, 20);
gtk_grid_set_row_spacing (GTK_GRID (table), 6);
gtk_grid_set_column_spacing (GTK_GRID (table), 6);
gtk_window_set_child (GTK_WINDOW (window), table);
label = gtk_label_new ("Color:");
gtk_widget_set_halign (label, GTK_ALIGN_START);
gtk_widget_set_valign (label, GTK_ALIGN_CENTER);
gtk_widget_set_hexpand (label, TRUE);
gtk_grid_attach (GTK_GRID (table), label, 0, 0, 1, 1);
picker = gtk_color_dialog_button_new (gtk_color_dialog_new ());
gtk_grid_attach (GTK_GRID (table), picker, 1, 0, 1, 1);
label = gtk_label_new ("Font:");
gtk_widget_set_halign (label, GTK_ALIGN_START);
gtk_widget_set_valign (label, GTK_ALIGN_CENTER);
gtk_widget_set_hexpand (label, TRUE);
gtk_grid_attach (GTK_GRID (table), label, 0, 1, 1, 1);
picker = gtk_font_dialog_button_new (gtk_font_dialog_new ());
gtk_grid_attach (GTK_GRID (table), picker, 1, 1, 1, 1);
label = gtk_label_new ("File:");
gtk_widget_set_halign (label, GTK_ALIGN_START);
gtk_widget_set_valign (label, GTK_ALIGN_CENTER);
gtk_widget_set_hexpand (label, TRUE);
gtk_grid_attach (GTK_GRID (table), label, 0, 2, 1, 1);
picker = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
button = gtk_button_new_from_icon_name ("document-open-symbolic");
label = gtk_label_new ("None");
drop_target = gtk_drop_target_new (G_TYPE_FILE, GDK_ACTION_COPY);
g_signal_connect (drop_target, "drop", G_CALLBACK (on_drop), label);
gtk_widget_add_controller (button, GTK_EVENT_CONTROLLER (drop_target));
gtk_label_set_xalign (GTK_LABEL (label), 0.);
gtk_label_set_ellipsize (GTK_LABEL (label), PANGO_ELLIPSIZE_MIDDLE);
gtk_widget_set_hexpand (label, TRUE);
g_signal_connect (button, "clicked", G_CALLBACK (open_file), label);
gtk_box_append (GTK_BOX (picker), label);
gtk_box_append (GTK_BOX (picker), button);
app_picker = gtk_button_new_from_icon_name ("emblem-system-symbolic");
gtk_widget_set_halign (app_picker, GTK_ALIGN_END);
gtk_widget_set_sensitive (app_picker, FALSE);
g_signal_connect (app_picker, "clicked", G_CALLBACK (open_app), NULL);
gtk_box_append (GTK_BOX (picker), app_picker);
gtk_grid_attach (GTK_GRID (table), picker, 1, 2, 1, 1);
label = gtk_label_new ("URI:");
gtk_widget_set_halign (label, GTK_ALIGN_START);
gtk_widget_set_valign (label, GTK_ALIGN_CENTER);
gtk_widget_set_hexpand (label, TRUE);
gtk_grid_attach (GTK_GRID (table), label, 0, 3, 1, 1);
picker = gtk_button_new_with_label ("www.gtk.org");
g_signal_connect (picker, "clicked", G_CALLBACK (launch_uri), NULL);
gtk_grid_attach (GTK_GRID (table), picker, 1, 3, 1, 1);
}
if (!gtk_widget_get_visible (window))
gtk_widget_set_visible (window, TRUE);
else
gtk_window_destroy (GTK_WINDOW (window));
return window;
}
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