AppearanceEditHandler(AppearanceCanvas canvas) {
this.canvas = canvas;
canvas.getSelection().addSelectionListener(this);
CanvasModel model = canvas.getModel();
if (model != null) model.addCanvasModelListener(this);
canvas.addPropertyChangeListener(Canvas.MODEL_PROPERTY, this);
}
@Override
public void setModel(CanvasModel value, ActionDispatcher dispatcher) {
CanvasModel oldModel = super.getModel();
if (oldModel != null) {
oldModel.removeCanvasModelListener(listener);
}
super.setModel(value, dispatcher);
if (value != null) {
value.addCanvasModelListener(listener);
}
}
public void propertyChange(PropertyChangeEvent e) {
String prop = e.getPropertyName();
if (prop.equals(Canvas.MODEL_PROPERTY)) {
CanvasModel oldModel = (CanvasModel) e.getOldValue();
if (oldModel != null) {
oldModel.removeCanvasModelListener(this);
}
CanvasModel newModel = (CanvasModel) e.getNewValue();
if (newModel != null) {
newModel.addCanvasModelListener(this);
}
}
}
public AppearanceCanvas(CanvasTool selectTool) {
super(Main.getAppContext());
this.selectTool = selectTool;
this.grid = new GridPainter(this);
this.listener = new Listener();
this.oldPreferredSize = null;
setSelection(new AppearanceSelection());
setTool(selectTool);
CanvasModel model = super.getModel();
if (model != null) model.addCanvasModelListener(listener);
grid.addPropertyChangeListener(GridPainter.ZOOM_PROPERTY, listener);
}
public void setModel(CanvasModel value, ActionDispatcher dispatcher) {
CanvasModel oldValue = model;
if (!oldValue.equals(value)) {
if (oldValue != null) {
oldValue.removeCanvasModelListener(listener);
}
model = value;
this.dispatcher = dispatcher;
if (value != null) {
value.addCanvasModelListener(listener);
}
selection.clearSelected();
repaint();
firePropertyChange(MODEL_PROPERTY, oldValue, value);
}
}