/**
* Create the Swing components that let you change the transparency of the color received from the
* JColorChooser.
*
* @param initialValue the starting alpha value for the color.
* @return JComponent to adjust the transparency value.
*/
public JComponent getTransparancyAdjustment(int initialValue) {
transparency = initialValue;
// This sets initial transparency effect in preview...
setPreviewColor(preview.getColor());
JPanel slidePanel = new JPanel();
Box slideBox = Box.createHorizontalBox();
JSlider opaqueSlide =
new JSlider(JSlider.HORIZONTAL, 0 /* min */, 255 /* max */, initialValue /* initial */);
java.util.Hashtable<Integer, JLabel> dict = new java.util.Hashtable<Integer, JLabel>();
String opaqueLabel = i18n.get(ColorTracker.class, "opaque", "opaque");
String clearLabel = i18n.get(ColorTracker.class, "clear", "clear");
if (opaqueLabel == null || opaqueLabel.length() == 0) {
// translations are too long :(
dict.put(new Integer(126), new JLabel(clearLabel));
} else {
dict.put(new Integer(50), new JLabel(clearLabel));
dict.put(new Integer(200), new JLabel(opaqueLabel));
}
// commented because polish translations are too long
opaqueSlide.setLabelTable(dict);
opaqueSlide.setPaintLabels(true);
opaqueSlide.setMajorTickSpacing(50);
opaqueSlide.setPaintTicks(true);
opaqueSlide.addChangeListener(
new ChangeListener() {
public void stateChanged(ChangeEvent ce) {
JSlider slider = (JSlider) ce.getSource();
if (slider.getValueIsAdjusting()) {
transparency = slider.getValue();
}
// This sets transparency in preview...
setPreviewColor(preview.getColor());
}
});
preview.setPreferredSize(new Dimension(100, slideBox.getHeight()));
slideBox.add(preview);
slideBox.add(Box.createGlue());
slideBox.add(opaqueSlide);
slideBox.add(Box.createGlue());
slidePanel.add(slideBox);
// You know what, it just has to be something, so the
// UIManager will think it's valid. It will get resized as
// appropriate when the JDialog gets packed.
slidePanel.setSize(new Dimension(50, 50));
return slidePanel;
}
public void drawBox(Graphics g) {
for (Box i : boxList) {
g.drawImage(i.getImage(), i.getX(), i.getY(), i.getWidth(), i.getHeight(), null);
}
}