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/* Stock Item and Icon Browser
*
* This source code for this demo doesn't demonstrate anything
* particularly useful in applications. The purpose of the "demo" is
* just to provide a handy place to browse the available stock icons
* and stock items.
*/
using System;
using System.Collections;
using System.Reflection;
using Gtk;
namespace GtkDemo
{
[Demo ("Stock Item and Icon Browser", "DemoStockBrowser.cs")]
public class DemoStockBrowser : Gtk.Window
{
enum Column {
Id,
Name,
Label,
Accel,
};
Label typeLabel, nameLabel, idLabel, accelLabel;
Image iconImage;
public DemoStockBrowser () : base ("Stock Icons and Items")
{
SetDefaultSize (-1, 500);
BorderWidth = 8;
HBox hbox = new HBox (false, 8);
Add (hbox);
ScrolledWindow sw = new ScrolledWindow ();
sw.SetPolicy (PolicyType.Never, PolicyType.Automatic);
hbox.PackStart (sw, false, false, 0);
ListStore model = CreateModel ();
TreeView treeview = new TreeView (model);
sw.Add (treeview);
TreeViewColumn column = new TreeViewColumn ();
column.Title = "Name";
CellRenderer renderer = new CellRendererPixbuf ();
column.PackStart (renderer, false);
column.SetAttributes (renderer, "stock_id", Column.Id);
renderer = new CellRendererText ();
column.PackStart (renderer, true);
column.SetAttributes (renderer, "text", Column.Name);
treeview.AppendColumn (column);
treeview.AppendColumn ("Label", new CellRendererText (), "text", Column.Label);
treeview.AppendColumn ("Accel", new CellRendererText (), "text", Column.Accel);
treeview.AppendColumn ("ID", new CellRendererText (), "text", Column.Id);
Alignment align = new Alignment (0.5f, 0.0f, 0.0f, 0.0f);
hbox.PackEnd (align, false, false, 0);
Frame frame = new Frame ("Selected Item");
align.Add (frame);
VBox vbox = new VBox (false, 8);
vbox.BorderWidth = 8;
frame.Add (vbox);
typeLabel = new Label ();
vbox.PackStart (typeLabel, false, false, 0);
iconImage = new Gtk.Image ();
vbox.PackStart (iconImage, false, false, 0);
accelLabel = new Label ();
vbox.PackStart (accelLabel, false, false, 0);
nameLabel = new Label ();
vbox.PackStart (nameLabel, false, false, 0);
idLabel = new Label ();
vbox.PackStart (idLabel, false, false, 0);
treeview.Selection.Mode = Gtk.SelectionMode.Single;
treeview.Selection.Changed += new EventHandler (SelectionChanged);
ShowAll ();
}
private ListStore CreateModel ()
{
ListStore store = new Gtk.ListStore (typeof (string), typeof(string), typeof(string), typeof(string), typeof (string));
string[] stockIds = Gtk.Stock.ListIds ();
Array.Sort (stockIds);
// Use reflection to get the list of C# names
Hashtable idToName = new Hashtable ();
foreach (PropertyInfo info in typeof (Gtk.Stock).GetProperties (BindingFlags.Public | BindingFlags.Static)) {
if (info.PropertyType == typeof (string))
idToName[info.GetValue (null, null)] = "Gtk.Stock." + info.Name;
}
foreach (string id in stockIds) {
Gtk.StockItem si;
string accel;
si = Gtk.Stock.Lookup (id);
if (si.Keyval != 0)
accel = Accelerator.Name (si.Keyval, si.Modifier);
else
accel = "";
store.AppendValues (id, idToName[id], si.Label, accel);
}
return store;
}
void SelectionChanged (object o, EventArgs args)
{
TreeSelection selection = (TreeSelection)o;
TreeIter iter;
ITreeModel model;
if (selection.GetSelected (out model, out iter)) {
string id = (string) model.GetValue (iter, (int)Column.Id);
string name = (string) model.GetValue (iter, (int)Column.Name);
string label = (string) model.GetValue (iter, (int)Column.Label);
string accel = (string) model.GetValue (iter, (int)Column.Accel);
IconSize size = GetLargestSize (id);
bool icon = (size != IconSize.Invalid);
if (icon && label != null)
typeLabel.Text = "Icon and Item";
else if (icon)
typeLabel.Text = "Icon Only";
else if (label != null)
typeLabel.Text = "Item Only";
else
typeLabel.Text = "???????";
if (name != null)
nameLabel.Text = name;
else
nameLabel.Text = "";
idLabel.Text = id;
if (label != null)
accelLabel.TextWithMnemonic = label + " " + accel;
else
accelLabel.Text = "";
if (icon)
iconImage.SetFromStock (id, size);
else
iconImage.Pixbuf = null;
} else {
typeLabel.Text = "No selected item";
nameLabel.Text = "";
idLabel.Text = "";
accelLabel.Text = "";
iconImage.Pixbuf = null;
}
}
// Finds the largest size at which the given image stock id is
// available. This would not be useful for a normal application
private IconSize GetLargestSize (string stockId)
{
IconSet set = IconFactory.LookupDefault (stockId);
if (set == null)
return IconSize.Invalid;
IconSize[] sizes = set.Sizes;
IconSize bestSize = IconSize.Invalid;
int bestPixels = 0;
foreach (IconSize size in sizes) {
int width, height;
Gtk.Icon.SizeLookup (size, out width, out height);
if (width * height > bestPixels) {
bestSize = size;
bestPixels = width * height;
}
}
return bestSize;
}
protected override bool OnDeleteEvent (Gdk.Event evt)
{
Destroy ();
return true;
}
}
}
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