1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/samples/extensibleicon/test/org/apidesign/extensibleicon/ModifiableIcon.java	Sat Jun 14 10:09:05 2008 +0200
     1.3 @@ -0,0 +1,58 @@
     1.4 +package org.apidesign.extensibleicon;
     1.5 +
     1.6 +import java.awt.Component;
     1.7 +import java.awt.Graphics;
     1.8 +import java.io.IOException;
     1.9 +import org.openide.util.Lookup;
    1.10 +import org.openide.util.lookup.AbstractLookup;
    1.11 +import org.openide.util.lookup.InstanceContent;
    1.12 +
    1.13 +// BEGIN: ext.modifiable.icon
    1.14 +public final class ModifiableIcon implements ExtIcon {
    1.15 +    // AbstractLookup is helper implementation
    1.16 +    // so that people do not need to write its own
    1.17 +    // lookup from scratch
    1.18 +    private AbstractLookup lookup;
    1.19 +    // InstanceContent is interface that gives
    1.20 +    // "creator of the lookup" more rights, like
    1.21 +    // ability to modify the content
    1.22 +    private InstanceContent ic;
    1.23 +    
    1.24 +    ModifiableIcon() {
    1.25 +        ic = new InstanceContent();
    1.26 +        lookup = new AbstractLookup(ic);
    1.27 +    }
    1.28 +    
    1.29 +    public Lookup getLookup() {
    1.30 +        return lookup;
    1.31 +    }
    1.32 +    
    1.33 +    public void markModified() {
    1.34 +        if (lookup.lookup(ModifiedImpl.class) == null) {
    1.35 +            ic.add(new ModifiedImpl());
    1.36 +        }
    1.37 +    }
    1.38 +    
    1.39 +    private final class ModifiedImpl implements Modified {
    1.40 +        public void save() throws IOException {
    1.41 +            // save somehow
    1.42 +        }
    1.43 +
    1.44 +        public void discard() throws IOException {
    1.45 +            // discard changes
    1.46 +        }
    1.47 +    }
    1.48 +// FINISH: ext.modifiable.icon
    1.49 +
    1.50 +    public void paintIcon(Component c, Graphics g, int x, int y) {
    1.51 +        g.fillRect(x, y, 16, 16);
    1.52 +    }
    1.53 +
    1.54 +    public int getIconWidth() {
    1.55 +        return 16;
    1.56 +    }
    1.57 +
    1.58 +    public int getIconHeight() {
    1.59 +        return 16;
    1.60 +    }
    1.61 +}