package com.explodingpixels.macwidgets.plaf;
import javax.swing.AbstractButton;
import javax.swing.ButtonModel;
import javax.swing.Icon;
import javax.swing.plaf.basic.BasicCheckBoxUI;
import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Component;
import java.awt.Graphics;
import java.awt.Graphics2D;
/**
* Creates a Heads Up Display (HUD) style check box button, similar to that seen in various iApps
* (e.g. iPhoto).
* <br>
* <img src="../../../../../graphics/HUDCheckBoxUI.png">
*/
public class HudCheckBoxUI extends BasicCheckBoxUI {
private static final Color PRESSED_CHECK_MARK_COLOR = new Color(0, 0, 0, 225);
@Override
protected void installDefaults(final AbstractButton b) {
super.installDefaults(b);
HudPaintingUtils.initHudComponent(b);
b.setIconTextGap((int) (HudPaintingUtils.FONT_SIZE / 2));
icon = new CheckIcon();
}
// Check icon implementation. /////////////////////////////////////////////////////////////////
private static class CheckIcon implements Icon {
private final int CHECK_BOX_SIZE = 12;
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 check box. this
// allows us to then delegate the painting to the HudPaintingUtils method, which assumes
// 0,0.
graphics.translate(x, y);
HudPaintingUtils.paintHudControlBackground(graphics, button, CHECK_BOX_SIZE,
CHECK_BOX_SIZE, HudPaintingUtils.Roundedness.CHECK_BOX);
drawCheckMarkIfNecessary(graphics, button.getModel());
graphics.dispose();
}
/**
* Draws the check mark if {@link ButtonModel#isSelected} returns true.
*/
private void drawCheckMarkIfNecessary(Graphics2D graphics, ButtonModel model) {
if (model.isSelected()) {
drawCheckMark(graphics, model);
}
}
/**
* Draws the check in the check box using the appropriate color based on the
* {@link ButtonModel#isPressed} state. Note that part of the check will be drawn outside
* it's bounds. Because this icon is actually being drawn inside a larger component (a
* {@link javax.swing.JCheckBox}), this shouldn't be an issue.
*/
private void drawCheckMark(Graphics2D graphics, ButtonModel model) {
int x1 = CHECK_BOX_SIZE / 4;
int y1 = CHECK_BOX_SIZE / 3;
int x2 = x1 + CHECK_BOX_SIZE / 6;
int y2 = y1 + CHECK_BOX_SIZE / 4;
int x3 = CHECK_BOX_SIZE - 2;
int y3 = -1;
Color color = model.isPressed() ?
PRESSED_CHECK_MARK_COLOR : HudPaintingUtils.FONT_COLOR;
graphics.setStroke(new BasicStroke(1.65f, BasicStroke.CAP_SQUARE, BasicStroke.JOIN_ROUND));
graphics.setColor(color);
graphics.drawLine(x1, y1, x2, y2);
graphics.drawLine(x2, y2, x3, y3);
}
public int getIconWidth() {
return CHECK_BOX_SIZE;
}
public int getIconHeight() {
return CHECK_BOX_SIZE;
}
}
}