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package com.explodingpixels.macwidgets.plaf;
import javax.swing.*;
import javax.swing.plaf.basic.BasicGraphicsUtils;
import javax.swing.plaf.basic.BasicRadioButtonUI;
import java.awt.*;
import java.awt.geom.Ellipse2D;
/**
* Creates a Heads Up Display (HUD) style radio button, similar to that seen in various iApps
* (e.g. iPhoto).
* <br>
* <img src="../../../../../graphics/HUDRadioButtonUI.png">
*/
public class HudRadioButtonUI extends BasicRadioButtonUI {
@Override
protected void installDefaults(final AbstractButton b) {
super.installDefaults(b);
HudPaintingUtils.initHudComponent(b);
b.setIconTextGap((int) (HudPaintingUtils.FONT_SIZE / 2));
icon = new DotIcon();
}
@Override
public void paint(Graphics g, JComponent c) {
HudPaintingUtils.updateGraphicsToPaintDisabledControlIfNecessary((Graphics2D) g, c);
super.paint(g, c);
}
@Override
protected void paintText(Graphics g, AbstractButton button, Rectangle textRect, String text) {
FontMetrics fontMetrics = g.getFontMetrics(button.getFont());
int mnemonicIndex = button.getDisplayedMnemonicIndex();
g.setColor(button.getForeground());
BasicGraphicsUtils.drawStringUnderlineCharAt(g, text, mnemonicIndex,
textRect.x + getTextShiftOffset(),
textRect.y + fontMetrics.getAscent() + getTextShiftOffset());
}
// Dot icon implementation. ///////////////////////////////////////////////////////////////////
private static class DotIcon implements Icon {
private final int RADIO_BUTTON_SIZE = 13;
private final float DOT_DIAMETER = 4.25f;
public void paintIcon(Component c, Graphics g, int x, int y) {
AbstractButton button = (AbstractButton) c;
Graphics2D graphics = (Graphics2D) g.create();
// translate the graphics context so that 0,0 is the top/left of the radio button. this
// allows us to then delegate the painting to the HudPaintingUtils method, which assumes
// 0,0.
graphics.translate(x, y);
HudPaintingUtils.paintHudControlBackground(graphics, button, RADIO_BUTTON_SIZE,
RADIO_BUTTON_SIZE, HudPaintingUtils.Roundedness.RADIO);
drawDotIfNecessary(graphics, button.getModel());
graphics.dispose();
}
private void drawDotIfNecessary(Graphics2D graphics, ButtonModel model) {
if (model.isSelected()) {
drawSelected(graphics, model);
}
}
private void drawSelected(Graphics2D graphics, ButtonModel model) {
Color color = model.isPressed() ?
HudPaintingUtils.PRESSED_MARK_COLOR : HudPaintingUtils.FONT_COLOR;
graphics.setColor(color);
float offset = (getIconWidth() - DOT_DIAMETER) / 2.0f;
Ellipse2D dot = new Ellipse2D.Float(offset, offset, DOT_DIAMETER, DOT_DIAMETER);
graphics.fill(dot);
}
public int getIconWidth() {
return RADIO_BUTTON_SIZE;
}
public int getIconHeight() {
return RADIO_BUTTON_SIZE;
}
}
}
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