@Override
public void stateChanged(ChangeEvent e) {
int level = levelControl.getValue();
if (level != current_level) {
createTree(level);
current_level = level;
if (!radial.isSelected()) {
TreeLayout<String, Number> tl2 = treeLayout;
radialLayout = new BalloonLayout<String, Number>(graph);
radialLayout.setSize(new Dimension(1200, 1200));
rings = new Rings(radialLayout);
treeLayout = new TreeLayout<String, Number>(graph);
LayoutTransition<String, Number> lt =
new LayoutTransition<String, Number>(vv, tl2, treeLayout);
Animator animator = new Animator(lt);
animator.start();
} else {
BalloonLayout<String, Number> r2 = radialLayout;
radialLayout = new BalloonLayout<String, Number>(graph);
radialLayout.setSize(new Dimension(1200, 1200));
treeLayout = new TreeLayout<String, Number>(graph);
vv.getRenderContext().getMultiLayerTransformer().setToIdentity();
vv.removePreRenderPaintable(rings);
rings = new Rings(radialLayout);
LayoutTransition<String, Number> lt =
new LayoutTransition<String, Number>(vv, r2, radialLayout);
Animator animator = new Animator(lt);
animator.start();
vv.getRenderContext().getMultiLayerTransformer().setToIdentity();
vv.addPreRenderPaintable(rings);
}
// vv.getRenderContext().getMultiLayerTransformer().setToIdentity();
}
}
/** create an instance of a simple graph with controls to demo the zoom features. */
public GraphZoomScrollPaneDemo() {
// create a simple graph for the demo
graph = new DirectedSparseGraph();
Vertex[] v = createVertices(10);
createEdges(v);
ImageIcon sandstoneIcon = null;
String imageLocation = "/samples/images/Sandstone.jpg";
try {
sandstoneIcon = new ImageIcon(getClass().getResource(imageLocation));
} catch (Exception ex) {
System.err.println("Can't load \"" + imageLocation + "\"");
}
final ImageIcon icon = sandstoneIcon;
PluggableRenderer pr = new PluggableRenderer();
vv = new VisualizationViewer(new FRLayout(graph), pr);
vv.setPickSupport(new ShapePickSupport());
pr.setEdgeShapeFunction(new EdgeShape.QuadCurve());
if (icon != null) {
vv.addPreRenderPaintable(
new VisualizationViewer.Paintable() {
public void paint(Graphics g) {
Dimension d = vv.getSize();
g.drawImage(icon.getImage(), 0, 0, d.width, d.height, vv);
}
public boolean useTransform() {
return false;
}
});
}
vv.addPostRenderPaintable(
new VisualizationViewer.Paintable() {
int x;
int y;
Font font;
FontMetrics metrics;
int swidth;
int sheight;
String str = "GraphZoomScrollPane Demo";
public void paint(Graphics g) {
Dimension d = vv.getSize();
if (font == null) {
font = new Font(g.getFont().getName(), Font.BOLD, 30);
metrics = g.getFontMetrics(font);
swidth = metrics.stringWidth(str);
sheight = metrics.getMaxAscent() + metrics.getMaxDescent();
x = (d.width - swidth) / 2;
y = (int) (d.height - sheight * 1.5);
}
g.setFont(font);
Color oldColor = g.getColor();
g.setColor(Color.lightGray);
g.drawString(str, x, y);
g.setColor(oldColor);
}
public boolean useTransform() {
return false;
}
});
vv.addGraphMouseListener(new TestGraphMouseListener());
// add my listener for ToolTips
vv.setToolTipFunction(new DefaultToolTipFunction());
// create a frome to hold the graph
final JFrame frame = new JFrame();
Container content = frame.getContentPane();
final GraphZoomScrollPane panel = new GraphZoomScrollPane(vv);
content.add(panel);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
final GraphMouse graphMouse = new DefaultModalGraphMouse();
vv.setGraphMouse(graphMouse);
JMenuBar menu = new JMenuBar();
menu.add(((DefaultModalGraphMouse) graphMouse).getModeMenu());
panel.setCorner(menu);
final ScalingControl scaler = new CrossoverScalingControl();
JButton plus = new JButton("+");
plus.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent e) {
scaler.scale(vv, 1.1f, vv.getCenter());
}
});
JButton minus = new JButton("-");
minus.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent e) {
scaler.scale(vv, 1 / 1.1f, vv.getCenter());
}
});
JButton reset = new JButton("reset");
reset.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent e) {
vv.getLayoutTransformer().setToIdentity();
vv.getViewTransformer().setToIdentity();
}
});
JPanel controls = new JPanel();
controls.add(plus);
controls.add(minus);
controls.add(reset);
content.add(controls, BorderLayout.SOUTH);
frame.pack();
frame.setVisible(true);
}
