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package com.explodingpixels.macwidgets.plaf;
import java.awt.AlphaComposite;
import java.awt.Color;
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.awt.image.BufferedImage;
import javax.swing.AbstractButton;
import javax.swing.BorderFactory;
import javax.swing.ButtonModel;
import javax.swing.JComponent;
import javax.swing.UIManager;
import javax.swing.plaf.basic.BasicButtonUI;
import javax.swing.plaf.basic.BasicGraphicsUtils;
import com.explodingpixels.macwidgets.MacColorUtils;
import com.explodingpixels.macwidgets.MacFontUtils;
public class UnifiedToolbarButtonUI extends BasicButtonUI {
private static final Color PRESSED_BUTTON_MASK_COLOR = new Color(0, 0, 0, 128);
private static final Color DISABLED_BUTTON_MASK_COLOR = new Color(255, 255, 255, 128);
@Override
protected void installDefaults(AbstractButton b) {
super.installDefaults(b);
// TODO save original values.
b.setHorizontalTextPosition(AbstractButton.CENTER);
b.setVerticalTextPosition(AbstractButton.BOTTOM);
b.setIconTextGap(0);
b.setBorder(BorderFactory.createEmptyBorder(0,0,0,0));
b.setOpaque(false);
b.setFocusable(false);
// TODO make the font derivation more robust.
b.setFont(MacFontUtils.DEFAULT_BUTTON_FONT);
}
@Override
protected void uninstallDefaults(AbstractButton b) {
super.uninstallDefaults(b);
// TODO implement.
}
@Override
protected void paintIcon(Graphics g, JComponent c, Rectangle iconRect) {
AbstractButton b = (AbstractButton) c;
ButtonModel model = b.getModel();
// create a buffered image to draw the icon and mask into.
BufferedImage image = new BufferedImage(iconRect.width, iconRect.height,
BufferedImage.TYPE_INT_ARGB);
// create a graphics context from the buffered image.
Graphics2D graphics = (Graphics2D) image.getGraphics();
// paint the icon into the buffered image.
b.getIcon().paintIcon(c, graphics, 0, 0);
// set the composite on the graphics context to SrcAtop which blends the
// source with the destination, and thus transparent pixels in the
// destination, remain transparent.
graphics.setComposite(AlphaComposite.SrcAtop);
// set the mask color based on the button models state.
if (!model.isEnabled()) {
graphics.setColor(DISABLED_BUTTON_MASK_COLOR);
} else if (model.isArmed()) {
graphics.setColor(PRESSED_BUTTON_MASK_COLOR);
} else {
graphics.setColor(new Color(0, 0, 0, 0));
}
// fill a rectangle with the mask color.
graphics.fillRect(0, 0, iconRect.width, iconRect.height);
graphics.dispose();
g.drawImage(image, iconRect.x, iconRect.y, null);
}
@Override
protected void paintText(Graphics g, JComponent c, Rectangle textRect, String text) {
MacFontUtils.enableAntialiasing((Graphics2D) g);
Graphics2D graphics = (Graphics2D) g.create();
AbstractButton b = (AbstractButton) c;
ButtonModel model = b.getModel();
FontMetrics fm = c.getFontMetrics(c.getFont());
// 1) Draw the emphasis text.
graphics.setColor(model.isArmed()
? MacColorUtils.EMPTY_COLOR
: EmphasizedLabelUI.DEFAULT_EMPHASIS_COLOR);
BasicGraphicsUtils.drawStringUnderlineCharAt(graphics, text, -1,
textRect.x, textRect.y + 1 + fm.getAscent());
// 2) Draw the text.
graphics.setColor(model.isEnabled()
? EmphasizedLabelUI.DEFAULT_FOCUSED_FONT_COLOR
: EmphasizedLabelUI.DEFAULT_DISABLED_FONT_COLOR);
BasicGraphicsUtils.drawStringUnderlineCharAt(graphics, text, -1,
textRect.x, textRect.y + fm.getAscent());
graphics.dispose();
}
}
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