public PanController() {
super(canvas);
canvas.addMouseWheelHandler(this);
canvas.addKeyDownHandler(this);
canvas.setFocus(true);
TextLayer textLayer = app.getTextLayer();
if (textLayer != null) {
textLayer.addDomHandler(this, MouseWheelEvent.getType());
textLayer.addDomHandler(this, KeyDownEvent.getType());
}
app.getHorizontalScrollbar().addScrollPanListener(this);
app.getVerticalScrollbar().addScrollPanListener(this);
}
public TextLayer addTextLayer(TextLayer textLayer) {
textLayer.next = textureLayers;
textureLayers = textLayer;
return textLayer;
}
