gtk2/demos/gtk-demo/pickers.c
2022-10-29 13:31:41 -04:00

125 lines
3.7 KiB
C

/* Pickers
* #Keywords: GtkColorDialog, GtkFontDialog, GtkFileDialog
*
* These widgets are mainly intended for use in preference dialogs.
* They allow to select colors, fonts and applications.
*
* This demo shows both the default appearance for these dialogs,
* as well as some of the customizations that are possible.
*/
#include <gtk/gtk.h>
static void
file_opened (GObject *source,
GAsyncResult *result,
void *data)
{
GFile *file;
GError *error = NULL;
char *name;
file = gtk_file_dialog_open_finish (GTK_FILE_DIALOG (source), result, &error);
if (!file)
{
g_print ("%s\n", error->message);
g_error_free (error);
return;
}
name = g_file_get_basename (file);
gtk_button_set_label (GTK_BUTTON (data), name);
g_free (name);
}
static void
open_file (GtkButton *picker)
{
GtkWindow *parent = GTK_WINDOW (gtk_widget_get_root (GTK_WIDGET (picker)));
GtkFileDialog *dialog;
dialog = gtk_file_dialog_new ();
gtk_file_dialog_open (dialog, parent, NULL, NULL, file_opened, picker);
g_object_unref (dialog);
}
#define COLOR(r,g,b) { r/255., g/255., b/255., 1.0 }
GtkWidget *
do_pickers (GtkWidget *do_widget)
{
static GtkWidget *window = NULL;
GtkWidget *table, *label, *picker;
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");
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), 3);
gtk_grid_set_column_spacing (GTK_GRID (table), 10);
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_button_new_with_label ("[...]");
g_signal_connect (picker, "clicked", G_CALLBACK (open_file), NULL);
gtk_grid_attach (GTK_GRID (table), picker, 1, 2, 1, 1);
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
label = gtk_label_new ("Mail:");
gtk_widget_set_halign (label, GTK_ALIGN_START);
gtk_widget_set_valign (label, GTK_ALIGN_CENTER);
gtk_widget_set_hexpand (label, TRUE);
picker = gtk_app_chooser_button_new ("x-scheme-handler/mailto");
gtk_app_chooser_button_set_show_dialog_item (GTK_APP_CHOOSER_BUTTON (picker), TRUE);
G_GNUC_END_IGNORE_DEPRECATIONS
gtk_grid_attach (GTK_GRID (table), label, 0, 3, 1, 1);
gtk_grid_attach (GTK_GRID (table), picker, 1, 3, 1, 1);
}
if (!gtk_widget_get_visible (window))
gtk_widget_show (window);
else
gtk_window_destroy (GTK_WINDOW (window));
return window;
}