prolooks/TransportButtonDemo.vala

   1 /*
   2     Copyright 2009 by Hans Baier
   3     License: LGPLv2+
   4 */
   5
   6 using Gtk;
   7 using Gdk;
   8
   9 namespace Prolooks {
  10
  11 public class TransportButtons : TransportButton {
  12
  13     public TransportButtons () {
  14         // Set favored widget size
  15         set_size_request (280, 40);
  16     }
  17
  18         /* Widget is asked to draw itself */
  19     public override bool expose_event (Gdk.EventExpose event) {
  20
  21         // Create a Cairo context
  22         var cr = Gdk.cairo_create (this.window);
  23
  24         // Set clipping area in order to avoid unnecessary drawing
  25         cr.rectangle (event.area.x, event.area.y,
  26                       event.area.width, event.area.height);
  27         cr.clip ();
  28
  29         cr.translate (10.0, 10.0);
  30         paint_stop_icon (cr);
  31
  32         cr.translate (20.0, 0.0);
  33         paint_play_icon (cr);
  34
  35         cr.translate (20.0, 0.0);
  36         paint_rec_icon (cr);
  37
  38         cr.translate (20.0, 0.0);
  39         paint_fast_forward_icon (cr);
  40
  41         cr.translate (20.0, 0.0);
  42         paint_fast_to_end_icon (cr);
  43
  44         cr.translate (20.0, 0.0);
  45         paint_fast_backward_icon (cr);
  46
  47         cr.translate (20.0, 0.0);
  48         paint_fast_to_start_icon (cr);
  49
  50
  51         return false;
  52     }
  53
  54
  55     static void save_drawable_to_file (string filename, DrawingArea drawarea, int width, int height) {
  56         try {
  57             Gdk.Pixbuf pixbuf = new Pixbuf (Gdk.Colorspace.RGB, true, drawarea.get_visual ().bits_per_rgb, width, height);
  58             pixbuf_get_from_drawable (pixbuf, drawarea.window, null, 0, 0, 0, 0, width, height);
  59             pixbuf.save (filename + ".png", "png");
  60         } catch (GLib.Error e) {
  61             critical ("Trying to save the image gave me that: %s", e.message);
  62         }
  63     }
  64
  65     static int main (string[] args) {
  66             Gtk.init (ref args);
  67             var window = new Gtk.Window (Gtk.WindowType.TOPLEVEL);
  68             var vbox   = new Gtk.VBox (false, 0);
  69             var hbox   = new Gtk.HBox (false, 0);
  70             var widget = new TransportButtons ();
  71             vbox.add (widget);
  72
  73             var button = new TransportButton();
  74             button.icon_type = IconType.STOP;
  75             hbox.add (button);
  76             button = new TransportButton();
  77             button.icon_type = IconType.PLAY;
  78             hbox.add (button);
  79             button = new TransportButton();
  80             button.icon_type = IconType.REC;
  81             hbox.add (button);
  82             button = new TransportButton();
  83             button.icon_type = IconType.FAST_BACKWARD;
  84             hbox.add (button);
  85             button = new TransportButton();
  86             button.icon_type = IconType.FAST_FORWARD;
  87             hbox.add (button);
  88             button = new TransportButton();
  89             button.icon_type = IconType.TO_START;
  90             hbox.add (button);
  91             button = new TransportButton();
  92             button.icon_type = IconType.TO_END;
  93             hbox.add (button);
  94
  95             vbox.add (hbox);
  96
  97             int[] sizes = {16, 22, 24, 28, 32, 48};
  98             foreach (var size in sizes) {
  99                 hbox   = new Gtk.HBox (true, 100);
 100
 101                 button = new TransportButton();
 102                 button.icon_type = IconType.STOP;
 103                 button.set_size_request (size, size);
 104                 hbox.add (button);
 105                 hbox.set_child_packing (button, false, false, 0, PackType.END);
 106
 107                 button = new TransportButton();
 108                 button.icon_type = IconType.PLAY;
 109                 button.set_size_request (size, size);
 110                 hbox.add (button);
 111                 button.event_after += (button) => {
 112                     int min_width, min_height;
 113                     button.get_size_request (out min_width, out min_height);
 114                     save_drawable_to_file ("/tmp/play" + min_width.to_string (), button, min_width, min_height);
 115                 };
 116                 hbox.set_child_packing (button, false, false, 0, PackType.END);
 117
 118                 button = new TransportButton();
 119                 button.icon_type = IconType.REC;
 120                 button.set_size_request (size, size);
 121                 hbox.add (button);
 122                 hbox.set_child_packing (button, false, false, 0, PackType.END);
 123
 124                 button = new TransportButton();
 125                 button.icon_type = IconType.FAST_BACKWARD;
 126                 button.set_size_request (size, size);
 127                 hbox.add (button);
 128                 hbox.set_child_packing (button, false, false, 0, PackType.END);
 129
 130                 button = new TransportButton();
 131                 button.icon_type = IconType.FAST_FORWARD;
 132                 button.set_size_request (size, size);
 133                 hbox.add (button);
 134                 hbox.set_child_packing (button, false, false, 0, PackType.END);
 135
 136                 button = new TransportButton();
 137                 button.icon_type = IconType.TO_START;
 138                 button.set_size_request (size, size);
 139                 hbox.add (button);
 140                 hbox.set_child_packing (button, false, false, 0, PackType.END);
 141
 142                 button = new TransportButton();
 143                 button.icon_type = IconType.TO_END;
 144                 button.set_size_request (size, size);
 145                 hbox.add (button);
 146                 hbox.set_child_packing (button, false, false, 0, PackType.END);
 147
 148                 vbox.add (hbox);
 149             }
 150
 151             window.add (vbox);
 152
 153             window.destroy += Gtk.main_quit;
 154             window.show_all ();
 155             Gtk.main ();
 156             return 0;
 157         }
 158 }
 159
 160 } // namespace Prolooks