/**
* Sets up the given dialog's content pane by setting its border to provide a good default spacer,
* and setting the content pane to the given components.
*
* @param aDialog the dialog to setup, cannot be <code>null</code>;
* @param aCenterComponent the component that should appear at the center of the dialog;
* @param aButtonPane the component that should appear at the bottom of the dialog
* @param defaultButton the default button for this dialog; can be null for "none".
* @see javax.swing.JRootPane#setDefaultButton(javax.swing.JButton)
*/
public static void setupDialogContentPane(
final JDialog aDialog,
final Component aCenterComponent,
final Component aButtonPane,
final JButton defaultButton) {
final JPanel contentPane = new JPanel(new BorderLayout());
contentPane.setBorder(
BorderFactory.createEmptyBorder(
DIALOG_PADDING,
DIALOG_PADDING, //
DIALOG_PADDING,
DIALOG_PADDING));
contentPane.add(aCenterComponent, BorderLayout.CENTER);
contentPane.add(aButtonPane, BorderLayout.PAGE_END);
aDialog.setContentPane(contentPane);
aDialog.getRootPane().setDefaultButton(defaultButton);
aDialog.pack();
}
/**
* Creates a button pane in which the given buttons are neatly aligned with proper spacings.
*
* @param aButtons the buttons to add to the created button pane, will be added in the given
* order.
* @return the button pane, never <code>null</code>.
*/
public static JComponent createButtonPane(final JButton... aButtons) {
if ((aButtons == null) || (aButtons.length < 1)) {
throw new IllegalArgumentException("Need at least one button!");
}
final JPanel buttonPane = new JPanel();
buttonPane.setLayout(new BoxLayout(buttonPane, BoxLayout.LINE_AXIS));
buttonPane.setBorder(
BorderFactory.createEmptyBorder(
BUTTONS_PADDING_TOP,
BUTTONS_PADDING_LEFT,
BUTTONS_PADDING_BOTTOM,
BUTTONS_PADDING_RIGHT));
buttonPane.add(Box.createHorizontalGlue());
// we want equally sized buttons, so we are recording preferred sizes while
// adding the buttons and set them to the maximum afterwards...
int width = 1;
int height = 1;
for (JButton button : aButtons) {
width = Math.max(width, button.getPreferredSize().width);
height = Math.max(height, button.getPreferredSize().height);
buttonPane.add(Box.createHorizontalStrut(BUTTONS_SPACING_DEFAULT));
buttonPane.add(button);
}
buttonPane.add(Box.createHorizontalStrut(BUTTONS_SPACING_DEFAULT));
final Dimension newDims = new Dimension(width, height);
// everything added; let's set all sizes
for (final JButton button : aButtons) {
button.setPreferredSize(newDims);
}
return buttonPane;
}