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package com.explodingpixels.painter;
import java.awt.Component;
import java.awt.Graphics2D;
import javax.swing.AbstractButton;
/**
* A {@link MacWidgetsPainter} that can be used to paint the various states of a button. This painter
* will delegate to the supplied painters based on the current state of the button. That is, if the button is being
* "rolled over", the {@code rolloverPainter} will be called; if the button is pressed, then the {@code pressedPainter}
* will be called, etc.
*/
public class ButtonStatePainter<B extends AbstractButton>
implements MacWidgetsPainter<B> {
private final MacWidgetsPainter<Component> fDefaultPainter;
private final MacWidgetsPainter<Component> fRolloverPainter;
private final MacWidgetsPainter<Component> fPressedPainter;
private final MacWidgetsPainter<Component> fSelectedPainter;
/**
* Creates a painter that will always use the given {@link MacWidgetsPainter} to
* paint the button.
* @param defaultPainter the {@code Painter} to use to paint the
* button.
*/
public ButtonStatePainter(MacWidgetsPainter<Component> defaultPainter) {
this(defaultPainter, defaultPainter, defaultPainter, defaultPainter);
}
/**
* Creates a painter that will delegate to the given painters based on
* the current state of the button.
* @param defaultPainter the {@link MacWidgetsPainter} to use when the button has
* no specific state.
* @param rolloverPainter the {@code Painter} to use when the button is
* being "rolled over".
* @param pressedPainter the {@code Painter} to use when the button is
* being pressed.
* @param selectedPainter the {@code Painter} to use when the button has
* been selected.
*/
public ButtonStatePainter(MacWidgetsPainter<Component> defaultPainter,
MacWidgetsPainter<Component> rolloverPainter,
MacWidgetsPainter<Component> pressedPainter,
MacWidgetsPainter<Component> selectedPainter) {
fDefaultPainter = defaultPainter;
fRolloverPainter = rolloverPainter;
fPressedPainter = pressedPainter;
fSelectedPainter = selectedPainter;
}
public void paint(Graphics2D g, B button, int width, int height) {
if (button.getModel().isRollover()) {
fRolloverPainter.paint(g, button, width, height);
} else if (button.getModel().isPressed()) {
fPressedPainter.paint(g, button, width, height);
} else if (button.getModel().isSelected()) {
fSelectedPainter.paint(g, button, width, height);
} else {
fDefaultPainter.paint(g, button, width, height);
}
}
// Dummy Painter implementation. /////////////////////////////////////////////////
/**
* An implementation of {@link MacWidgetsPainter} that does no painting.
*/
public static class DummyPainter implements MacWidgetsPainter<Component> {
public void paint(Graphics2D g, Component component, int width, int height) {
// do nothing.
}
}
}
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