prolooks/ValueDisplay.vala

   1 /*
   2     Copyright 2009 by Hans Baier
   3     License: LGPLv2+
   4 */
   5
   6 using Gtk;
   7
   8 namespace Prolooks {
   9
  10 public class ValueDisplay : DisplayBase {
  11
  12     private string _text = "";
  13     public new string text {
  14         set {
  15             if (_text != value) {
  16                 _text = value;
  17                 queue_draw ();
  18             }
  19         }
  20         get {
  21             return _text;
  22         }
  23     }
  24
  25     private new int width  = 36;
  26     private new int height = 16;
  27
  28     construct {
  29         set_size_request (width, height);
  30         show_glass_rim = false;
  31     }
  32
  33     protected override bool draw_contents(Cairo.Context cr, Gdk.EventExpose event) {
  34         // draw text
  35         double font_size         = inner_height;
  36
  37         cr.select_font_face ("FreeSans", Cairo.FontSlant.NORMAL, Cairo.FontWeight.NORMAL);
  38         cr.set_font_size (font_size);
  39         Cairo.TextExtents ext = Cairo.TextExtents();
  40         cr.text_extents (text, ref ext);
  41         double x = (inner_width - ext.x_advance) / 2.0;
  42         double y = inner_height * 0.85;
  43
  44         DisplayBase.text (cr, text, x, y, font_size);
  45
  46         return true;
  47     }
  48 }
  49
  50 } // namespace Prolooks
  51