mcs/class/Mono.Cairo/snippets/SnippetsGtk.cs

   1 using System;
   2 using Cairo;
   3 using Gtk;
   4
   5 namespace Cairo.Snippets
   6 {
   7         public class CairoSnippetsGtk
   8         {
   9                 int width = 400;
  10                 int height = 200;
  11
  12                 DrawingArea da = new DrawingArea ();
  13
  14                 Snippets snips = new Snippets ();
  15                 string selected = "";
  16
  17                 public static void Main(string[] args)
  18                 {
  19                         Application.Init ();
  20                         new CairoSnippetsGtk ();
  21                         Application.Run ();
  22                 }
  23
  24                 public CairoSnippetsGtk ()
  25                 {
  26                         Window w = new Window ("Cairo snippets");
  27                         w.SetDefaultSize (width, height);
  28                         w.DeleteEvent += delegate { Application.Quit (); };
  29
  30                         HPaned hpane = new HPaned ();
  31                         ScrolledWindow sw = new ScrolledWindow ();
  32                         TreeView tv = new TreeView ();
  33                         tv.HeadersVisible = false;
  34                         tv.AppendColumn ("snippets", new CellRendererText (), "text", 0);
  35                         tv.Model = GetModel ();
  36                         tv.Selection.Changed += OnSelectionChanged;
  37                         sw.Add (tv);
  38                         hpane.Add1 (sw);
  39                         da = new DrawingArea ();
  40                         da.ExposeEvent += OnExposed;
  41                         hpane.Add2 (da);
  42                         hpane.Position = width / 2;
  43                         w.Add (hpane);
  44
  45                         w.ShowAll ();
  46                 }
  47
  48                 ListStore GetModel ()
  49                 {
  50                         ListStore store = new ListStore (typeof (string));
  51                         foreach (string s in Snippets.snippets)
  52                                 store.AppendValues (s);
  53                         return store;
  54                 }
  55
  56                 void OnExposed (object sender, ExposeEventArgs e)
  57                 {
  58                         Context cr = Gdk.CairoHelper.Create (da.GdkWindow);
  59
  60                         int w, h;
  61                         da.GdkWindow.GetSize (out w, out h);
  62
  63                         // set window bg
  64                         cr.ColorRgb = new Color (1, 1, 1 );
  65                         cr.Rectangle (0, 0, w, h);
  66                         cr.Fill ();
  67                         // reset it
  68                         cr.ColorRgb = new Color (0, 0, 0);
  69
  70                         Snippets.InvokeSnippet (snips, selected, cr, w, h);
  71
  72                         e.RetVal = true;
  73                 }
  74
  75                 void OnSelectionChanged (object sender, EventArgs e)
  76                 {
  77                         TreeIter iter;
  78                         TreeModel model;
  79                         TreeSelection selection = sender as TreeSelection;
  80
  81                         if (selection.GetSelected (out model, out iter))
  82                         {
  83                                 selected = (string) model.GetValue (iter, 0);
  84                         }
  85
  86                         da.QueueDraw ();
  87                 }
  88         }
  89 }
  90