/**
* Iterates all child components and calculates the space enough to keep all of them assuming that
* the width is fixed.
*/
private Dimension calculateSize(int maxRowWidth) {
FlowLayout layout = (FlowLayout) getLayout();
int height = 0;
int currentRowWidth = 0;
int currentRowHeight = 0;
for (int i = 0, count = getComponentCount(); i < count; ++i) {
Component comp = getComponent(i);
Dimension bounds = comp.getPreferredSize();
if (!comp.isVisible()) {
continue;
}
currentRowHeight = Math.max(currentRowHeight, bounds.height);
if (currentRowWidth + layout.getHgap() + bounds.width <= maxRowWidth) {
if (bounds.width != 0) {
currentRowWidth += bounds.width + layout.getHgap();
}
continue;
}
height += currentRowHeight + layout.getVgap();
currentRowWidth = bounds.width;
currentRowHeight = bounds.height;
}
return new Dimension(maxRowWidth, height + currentRowHeight + 2 * layout.getVgap());
}
/**
* Displays a modal dialog with one button for each entry in the {@link GraphicGenerator} clipart
* library. Clicking on a button sets that entry into the {@link ATTR_CLIPART_NAME} parameter.
*/
private void displayClipartDialog() {
Window window = SwingUtilities.getWindowAncestor(myPanel);
final JDialog dialog = new JDialog(window, Dialog.ModalityType.DOCUMENT_MODAL);
FlowLayout layout = new FlowLayout();
dialog.getRootPane().setLayout(layout);
int count = 0;
for (Iterator<String> iter = GraphicGenerator.getClipartNames(); iter.hasNext(); ) {
final String name = iter.next();
try {
JButton btn = new JButton();
btn.setIcon(new ImageIcon(GraphicGenerator.getClipartIcon(name)));
Dimension d = new Dimension(CLIPART_ICON_SIZE, CLIPART_ICON_SIZE);
btn.setMaximumSize(d);
btn.setPreferredSize(d);
btn.addActionListener(
new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
myTemplateState.put(ATTR_CLIPART_NAME, name);
dialog.setVisible(false);
update();
}
});
dialog.getRootPane().add(btn);
count++;
} catch (IOException e) {
LOG.error(e);
}
}
int size =
(int) (Math.sqrt(count) + 1) * (CLIPART_ICON_SIZE + layout.getHgap())
+ CLIPART_DIALOG_BORDER * 2;
dialog.setSize(size, size + DIALOG_HEADER);
dialog.setLocationRelativeTo(window);
dialog.setVisible(true);
}