/*
* @(#)QuaquaLabelUI.java
*
* Copyright (c) 2005-2010 Werner Randelshofer, Immensee, Switzerland.
* All rights reserved.
*
* You may not use, copy or modify this file, except in compliance with the
* license agreement you entered into with Werner Randelshofer.
* For details see accompanying license terms.
*/
package ch.randelshofer.quaqua;
import ch.randelshofer.quaqua.util.*;
import ch.randelshofer.quaqua.border.BackgroundBorder;
import ch.randelshofer.quaqua.color.InactivatableColorUIResource;
import ch.randelshofer.quaqua.util.Debug;
import ch.randelshofer.quaqua.color.PaintableColor;
import java.awt.*;
import java.beans.*;
import javax.swing.*;
import javax.swing.border.*;
import javax.swing.plaf.*;
import javax.swing.plaf.basic.*;
/**
* QuaquaLabelUI.
*
* @author Werner Randelshofer
* @version $Id: QuaquaLabelUI.java 414 2011-07-29 20:55:05Z wrandelshofer $
*/
public class QuaquaLabelUI extends BasicLabelUI implements VisuallyLayoutable {
protected final static QuaquaLabelUI labelUI = new QuaquaLabelUI();
/* These rectangles/insets are allocated once for this shared LabelUI
* implementation. Re-using rectangles rather than allocating
* them in each getPreferredSize call sped up the method substantially.
*/
private static Rectangle iconR = new Rectangle();
private static Rectangle textR = new Rectangle();
private static Rectangle viewR = new Rectangle();
private static Insets viewInsets = new Insets(0, 0, 0, 0);
/**
* Preferred spacing between labels and other components.
* Pixels from colon and associated controls (RadioButton,
* CheckBox)
* /
* private final static Insets associatedRegularSpacing = new Insets(8,8,8,8);
* private final static Insets associatedSmallSpacing = new Insets(6,6,6,6);
* private final static Insets associatedMiniSpacing = new Insets(5,5,5,5);
*/
public static ComponentUI createUI(JComponent c) {
return labelUI;
}
@Override
protected void installDefaults(JLabel b) {
super.installDefaults(b);
// load shared instance defaults
LookAndFeel.installBorder(b, "Label.border");
// FIXME - Very, very dirty trick to achieve small labels on sliders
// This hack should be removed, when we implement a SliderUI
// on our own.
if (b.getClass().getName().endsWith("LabelUIResource")) {
b.setFont(UIManager.getFont("Slider.labelFont"));
}
QuaquaUtilities.applySizeVariant(b);
}
@Override
public void paint(Graphics gr, JComponent c) {
Graphics2D g = (Graphics2D) gr;
Object oldHints = QuaquaUtilities.beginGraphics(g);
// Paint background again so that the texture paint is drawn
if (c.isOpaque()) {
g.setPaint(PaintableColor.getPaint(c.getBackground(), c));
g.fillRect(0, 0, c.getWidth(), c.getHeight());
}
// Paint background border
Border b = c.getBorder();
if (b != null && b instanceof BackgroundBorder) {
((BackgroundBorder) b).getBackgroundBorder().paintBorder(c, g, 0, 0, c.getWidth(), c.getHeight());
}
super.paint(g, c);
QuaquaUtilities.endGraphics(g, oldHints);
Debug.paint(g, c, this);
}
/**
* Paint label with disabled text color.
*
* @see #paint
* @see #paintEnabledText
*/
@Override
protected void paintDisabledText(JLabel l, Graphics g, String s, int textX, int textY) {
// Make sure we render with the right drawing properties and make sure
// we can edit them by client properties
Font font = l.getFont();
Color foreground = UIManager.getColor("Label.disabledForeground");
int accChar = -1; //l.getDisplayedMnemonicIndex();
String style = (String) l.getClientProperty("Quaqua.Label.style");
if (style != null) {
boolean selected = style.endsWith("Selected");
if (style.startsWith("category")) {
s = s.toUpperCase();
font = UIManager.getFont("Tree.sideBarCategory.font");
style = (selected) ? "shadow" : "emboss";
foreground = UIManager.getColor(selected ? "Tree.sideBarCategory.selectionForeground" : "Tree.sideBarCategory.foreground");
} else if (style.startsWith("row")) {
font = selected ? UIManager.getFont("Tree.sideBar.selectionFont") : UIManager.getFont("Tree.sideBar.font");
// Preserve font style attributes as long as they don't interfere
// with the font style of the sidebar.
if (selected) {
font = font.deriveFont(l.getFont().getStyle() | font.getStyle());
} else {
font = font.deriveFont(l.getFont().getStyle());
}
style = selected ? "shadow" : null;
}
if (style != null && style.equals("emboss")) {
g.setFont(font);
g.setColor(UIManager.getColor("Label.embossForeground"));
QuaquaUtilities.drawString(g, s, accChar, textX, textY + 1);
} else if (style != null && style.equals("shadow")) {
g.setFont(font);
g.setColor(UIManager.getColor("Label.shadowForeground"));
QuaquaUtilities.drawString(g, s, accChar, textX, textY + 1);
}
}
g.setFont(font);
g.setColor(foreground);
QuaquaUtilities.drawString(g, s, accChar,
textX, textY);
}
@Override
protected void paintEnabledText(JLabel l, Graphics g, String s, int textX, int textY) {
int mnemIndex = l.getDisplayedMnemonicIndex();
// Make sure we render with the right drawing properties and make sure
// we can edit them by client properties
Font font = l.getFont();
Color foreground = l.getForeground();
String style = (String) l.getClientProperty("Quaqua.Label.style");
if (style != null) {
boolean selected = style.endsWith("Selected");
boolean active = style.indexOf("Inactive") == -1;
if (style.startsWith("category")) {
s = s.toUpperCase();
font = UIManager.getFont(selected ? "Tree.sideBarCategory.selectionFont" : "Tree.sideBarCategory.font");
foreground = UIManager.getColor(selected ? "Tree.sideBarCategory.selectionForeground" : "Tree.sideBarCategory.foreground");
if (foreground instanceof InactivatableColorUIResource) {
((InactivatableColorUIResource) foreground).setActive(active);
}
style = (selected) ? "shadow" : "emboss";
} else if (style.startsWith("row")) {
font = selected ? UIManager.getFont("Tree.sideBar.selectionFont") : UIManager.getFont("Tree.sideBar.font");
if (font == null) {
font = l.getFont();
}
// Preserve font style attributes as long as they don't interfere
// with the font style of the sidebar.
if (selected) {
font = font.deriveFont(l.getFont().getStyle() & Font.ITALIC | font.getStyle());
} else {
font = font.deriveFont(l.getFont().getStyle() & Font.ITALIC | font.getStyle());
}
foreground = UIManager.getColor(selected ? "Tree.sideBar.selectionForeground" : "Tree.sideBar.foreground");
if (foreground instanceof InactivatableColorUIResource) {
((InactivatableColorUIResource) foreground).setActive(active);
}
style = (selected) ? "shadow" : null;
}
if (style != null && style.equals("emboss")) {
g.setFont(font);
g.setColor(UIManager.getColor("Label.embossForeground"));
QuaquaUtilities.drawString(g, s, mnemIndex, textX, textY + 1);
} else if (style != null && style.equals("shadow")) {
g.setFont(font);
g.setColor(UIManager.getColor("Label.shadowForeground"));
QuaquaUtilities.drawString(g, s, mnemIndex, textX, textY + 1);
}
}
g.setFont(font);
g.setColor(foreground);
QuaquaUtilities.drawString(g, s, mnemIndex, textX, textY);
}
/**
* Forwards the call to SwingUtilities.layoutCompoundLabel().
* This method is here so that a subclass could do Label specific
* layout and to shorten the method name a little.
*
* @see SwingUtilities#layoutCompoundLabel
*/
@Override
protected String layoutCL(
JLabel label,
FontMetrics fontMetrics,
String text,
Icon icon,
Rectangle viewR,
Rectangle iconR,
Rectangle textR) {
return SwingUtilities.layoutCompoundLabel(
(JComponent) label,
fontMetrics,
text,
icon,
label.getVerticalAlignment(),
label.getHorizontalAlignment(),
label.getVerticalTextPosition(),
label.getHorizontalTextPosition(),
viewR,
iconR,
textR,
label.getIconTextGap());
}
@Override
public int getBaseline(JComponent c, int width, int height) {
Rectangle vb = getVisualBounds(c, VisuallyLayoutable.TEXT_BOUNDS, width, height);
return (vb == null) ? -1 : vb.y + vb.height;
}
public Rectangle getVisualBounds(JComponent c, int type, int width, int height) {
Rectangle rect = new Rectangle(0, 0, width, height);
if (type == VisuallyLayoutable.CLIP_BOUNDS) {
return rect;
}
JLabel b = (JLabel) c;
String text = b.getText();
boolean isEmpty = (text == null || text.length() == 0);
if (isEmpty) {
text = " ";
}
Icon icon = (b.isEnabled()) ? b.getIcon() : b.getDisabledIcon();
Font f = c.getFont();
FontMetrics fm = c.getFontMetrics(f);
Insets insets = c.getInsets(viewInsets);
viewR.x = insets.left;
viewR.y = insets.top;
viewR.width = width - (insets.left + insets.right);
viewR.height = height - (insets.top + insets.bottom);
iconR.x = iconR.y = iconR.width = iconR.height = 0;
textR.x = textR.y = textR.width = textR.height = 0;
String clippedText =
layoutCL(b, fm, text, icon, viewR, iconR, textR);
Rectangle textBounds = Fonts.getPerceivedBounds(text, f, c);
if (isEmpty) {
textBounds.width = 0;
}
int ascent = fm.getAscent();
textR.x += textBounds.x;
textR.width = textBounds.width;
textR.y += ascent + textBounds.y;
textR.height -= fm.getHeight() - textBounds.height;
// Determine text rectangle
switch (type) {
case VisuallyLayoutable.COMPONENT_BOUNDS:
if (icon != null) {
rect = textR.union(iconR);
} else {
rect.setBounds(textR);
}
break;
case VisuallyLayoutable.TEXT_BOUNDS:
if (text == null) {
return rect;
}
rect.setBounds(textR);
break;
}
return rect;
}
@Override
public void propertyChange(PropertyChangeEvent evt) {
String name = evt.getPropertyName();
if (name.equals("JComponent.sizeVariant")) {
QuaquaUtilities.applySizeVariant((JLabel) evt.getSource());
} else if (name.equals("Quaqua.Label.style")) {
QuaquaUtilities.applySizeVariant((JLabel) evt.getSource());
} else {
super.propertyChange(evt);
}
}
}