mirror of
https://github.com/Ryujinx/GtkSharp.git
synced 2024-09-08 07:53:17 +02:00
implement Progressive image loader
and part of the stock browser svn path=/trunk/gtk-sharp/; revision=32053
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@ -37,6 +37,7 @@ namespace GtkDemo
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{
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private static Gtk.Image progressiveImage;
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private VBox vbox;
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BinaryReader imageStream;
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public DemoImages () : base ("images")
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{
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@ -133,20 +134,30 @@ namespace GtkDemo
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* The timeout simply simulates a slow data source by inserting
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* pauses in the reading process.
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*/
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timeout_id = GLib.Timeout.Add(150, new GLib.TimeoutHandler(ProgressiveTimeout));
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timeout_id = GLib.Timeout.Add (150, new GLib.TimeoutHandler (ProgressiveTimeout));
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}
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static Gdk.PixbufLoader pixbufLoader;
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// TODO: Finish this callback
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// Decide if we want to perform crazy error handling
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private bool ProgressiveTimeout()
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// TODO: Decide if we want to perform crazy error handling
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private bool ProgressiveTimeout ()
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{
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Gtk.Image imageStream = new Gtk.Image ("images/alphatest.png");
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pixbufLoader = new Gdk.PixbufLoader ();
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pixbufLoader.AreaPrepared += new EventHandler (ProgressivePreparedCallback);
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pixbufLoader.AreaUpdated += new AreaUpdatedHandler (ProgressiveUpdatedCallback);
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return true;
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if (imageStream == null) {
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imageStream = new BinaryReader (new StreamReader ("images/alphatest.png").BaseStream);
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pixbufLoader = new Gdk.PixbufLoader ();
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pixbufLoader.AreaPrepared += new EventHandler (ProgressivePreparedCallback);
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pixbufLoader.AreaUpdated += new AreaUpdatedHandler (ProgressiveUpdatedCallback);
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}
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if (imageStream.PeekChar () != -1) {
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byte[] bytes = imageStream.ReadBytes (256);
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pixbufLoader.Write (bytes, (uint) bytes.Length);
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return true; // leave the timeout active
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}
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else {
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imageStream.Close ();
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return false; // removes the timeout
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}
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}
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static void ProgressivePreparedCallback (object obj, EventArgs args)
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@ -158,7 +169,7 @@ namespace GtkDemo
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static void ProgressiveUpdatedCallback (object obj, AreaUpdatedArgs args)
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{
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progressiveImage.QueueDraw ();
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}
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}
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}
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@ -30,7 +30,10 @@ namespace GtkDemo
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list.AppendColumn ("Name", new CellRendererText (), "text", 1);
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list.AppendColumn ("Label", new CellRendererText (), "text", 2);
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list.AppendColumn ("Accel", new CellRendererText (), "text", 3);
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list.AppendColumn ("ID", new CellRendererText (), "text", 4);
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list.Model = CreateStore ();
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list.Selection.Changed += new EventHandler (OnSelectionChanged);
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scrolledWindow.Add (list);
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Frame frame = new Frame ();
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@ -41,17 +44,38 @@ namespace GtkDemo
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private ListStore CreateStore ()
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{
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// image, name, label, accel
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ListStore store = new Gtk.ListStore (typeof (Gdk.Pixbuf), typeof(string), typeof(string), typeof(string));
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for (int i =1; i < 10; i++)
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// image, name, label, accel, id
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ListStore store = new Gtk.ListStore (typeof (Gdk.Pixbuf), typeof(string), typeof(string), typeof(string), typeof (string));
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string[] stock_ids = Gtk.Stock.ListIds ();
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foreach (string s in stock_ids)
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{
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Image icon = new Image ("images/MonoIcon.png");
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store.AppendValues (icon, "Gtk.Stock.Ok", "Ok", "_Ok");
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Gtk.StockItem si;
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/* Gtk.Stock.Lookup is not being generated
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if (Gtk.Stock.Lookup (out si)) {
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Image icon = new Image (s, IconSize.Menu);
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store.AppendValues (si.Pixbuf, si.Label, "Ok", "_Ok", si.StockId);
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}
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else {
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Console.WriteLine ("StockItem {0} could not be found.", s);
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}
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*/
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}
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return store;
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}
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void OnSelectionChanged (object o, EventArgs args)
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{
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TreeIter iter;
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TreeModel model;
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if (((TreeSelection) o).GetSelected (out model, out iter))
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{
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// update the frame
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}
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}
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private void WindowDelete (object o, DeleteEventArgs args)
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{
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@ -9,7 +9,7 @@ DemoIconFactory
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- almost everything
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DemoImages
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- fix the progressive loading image
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- improve the Progressive Image loading and error handling
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DemoStockBrowser
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- almost everything
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