/*
* Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package com.sun.tools.visualvm.modules.tracer.impl.swing;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Insets;
import javax.swing.border.Border;
/**
*
* @author Jiri Sedlacek
*/
public final class EnhancedLabelRenderer extends LabelRenderer {
private static final EnhancedInsets EMPTY_INSETS = new EnhancedInsets();
private EnhancedInsets marginInsets;
private EnhancedInsets borderInsets;
private Border border;
private Color background;
public void setMargin(Insets marginInsets) {
if (marginInsets == null) this.marginInsets = EMPTY_INSETS;
else this.marginInsets = new EnhancedInsets(marginInsets);
}
// Overridden for performance reasons.
public void setBorder(Border border) {
this.border = border;
if (border == null) borderInsets = EMPTY_INSETS;
else borderInsets = new EnhancedInsets(border.getBorderInsets(this));
}
// Overridden for performance reasons.
public Border getBorder() {
return border;
}
// Overridden for performance reasons.
public void setBackground(Color background) {
this.background = background;
}
// Overridden for performance reasons.
public Color getBackground() {
return background;
}
private EnhancedInsets getMarginInsets() {
if (marginInsets == null) marginInsets = EMPTY_INSETS;
return marginInsets;
}
private EnhancedInsets getBorderInsets() {
if (borderInsets == null) borderInsets = EMPTY_INSETS;
return borderInsets;
}
protected void prePaint(Graphics g, int x, int y) {
if (background != null) {
g.setColor(background);
EnhancedInsets margin = getMarginInsets();
Dimension size = getPreferredSize();
g.fillRect(x - margin.left,
y - margin.top,
size.width + margin.width(),
size.height + margin.height());
}
}
protected void postPaint(Graphics g, int x, int y) {
if (border != null) {
EnhancedInsets bi = getBorderInsets();
EnhancedInsets margin = getMarginInsets();
Dimension size = getPreferredSize();
border.paintBorder(this, g,
x - margin.left - bi.left,
y - margin.top - bi.top,
size.width + margin.width() + bi.width(),
size.height + margin.height() + bi.height());
}
}
private static class EnhancedInsets extends Insets {
public EnhancedInsets() {
this(0, 0, 0, 0);
}
public EnhancedInsets(Insets insets) {
this(insets.top, insets.left, insets.bottom, insets.right);
}
public EnhancedInsets(int top, int left, int bottom, int right) {
super(top, left, bottom, right);
}
public int width() {
return left + right;
}
public int height() {
return top + bottom;
}
}
}