+++ /dev/null
-/* Color Chooser
- *
- * A GtkColorChooser lets the user choose a color. There are several
- * implementations of the GtkColorChooser interface in GTK. The
- * GtkColorChooserDialog is a prebuilt dialog containing a
- * GtkColorChooserWidget.
- */
-
-#include <gtk/gtk.h>
-
-static GtkWidget *window = NULL;
-static GtkWidget *da;
-static GdkRGBA color;
-static GtkWidget *frame;
-
-/* draw callback for the drawing area
- */
-static void
-draw_function (GtkDrawingArea *drawing_area,
- cairo_t *cr,
- int width,
- int height,
- gpointer data)
-{
- gdk_cairo_set_source_rgba (cr, &color);
- cairo_paint (cr);
-}
-
-static void
-response_cb (GtkDialog *dialog,
- gint response_id,
- gpointer user_data)
-{
- if (response_id == GTK_RESPONSE_OK)
- {
- gtk_color_chooser_get_rgba (GTK_COLOR_CHOOSER (dialog), &color);
- gtk_widget_queue_draw (da);
- }
-
- gtk_widget_destroy (GTK_WIDGET (dialog));
-}
-
-static void
-change_color_callback (GtkWidget *button,
- gpointer data)
-{
- GtkWidget *dialog;
-
- dialog = gtk_color_chooser_dialog_new ("Changing color", GTK_WINDOW (window));
- gtk_window_set_modal (GTK_WINDOW (dialog), TRUE);
- gtk_color_chooser_set_rgba (GTK_COLOR_CHOOSER (dialog), &color);
-
- g_signal_connect (dialog, "response",
- G_CALLBACK (response_cb), NULL);
-
- gtk_widget_show (dialog);
-}
-
-GtkWidget *
-do_colorsel (GtkWidget *do_widget)
-{
- GtkWidget *vbox;
- GtkWidget *button;
-
- if (!window)
- {
- color.red = 0;
- color.blue = 1;
- color.green = 0;
- color.alpha = 1;
-
- window = gtk_window_new ();
- gtk_window_set_display (GTK_WINDOW (window),
- gtk_widget_get_display (do_widget));
- gtk_window_set_title (GTK_WINDOW (window), "Color Chooser");
- gtk_window_set_resizable (GTK_WINDOW (window), FALSE);
-
- g_signal_connect (window, "destroy",
- G_CALLBACK (gtk_widget_destroyed), &window);
-
- vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 8);
- gtk_widget_set_margin_start (vbox, 12);
- gtk_widget_set_margin_end (vbox, 12);
- gtk_widget_set_margin_top (vbox, 12);
- gtk_widget_set_margin_bottom (vbox, 12);
- gtk_container_add (GTK_CONTAINER (window), vbox);
-
- /*
- * Create the color swatch area
- */
-
- frame = gtk_frame_new (NULL);
- gtk_container_add (GTK_CONTAINER (vbox), frame);
-
- da = gtk_drawing_area_new ();
- gtk_drawing_area_set_content_width (GTK_DRAWING_AREA (da), 200);
- gtk_drawing_area_set_content_height (GTK_DRAWING_AREA (da), 200);
- gtk_drawing_area_set_draw_func (GTK_DRAWING_AREA (da), draw_function, NULL, NULL);
-
- gtk_container_add (GTK_CONTAINER (frame), da);
-
- button = gtk_button_new_with_mnemonic ("_Change the above color");
- gtk_widget_set_halign (button, GTK_ALIGN_END);
- gtk_widget_set_valign (button, GTK_ALIGN_CENTER);
-
- gtk_container_add (GTK_CONTAINER (vbox), button);
-
- g_signal_connect (button, "clicked",
- G_CALLBACK (change_color_callback), NULL);
- }
-
- if (!gtk_widget_get_visible (window))
- gtk_widget_show (window);
- else
- gtk_widget_destroy (window);
-
- return window;
-}