/*
* Copyright 1999,2004 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.log4j.chainsaw.icons;
import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Component;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.GraphicsEnvironment;
import java.awt.RenderingHints;
import java.awt.image.BufferedImage;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import org.apache.log4j.LogManager;
import org.apache.log4j.Logger;
/**
* A simple factory/facade for creating some of the standard Icons that are based
* on line drawings
* @author Paul Smith <psmith@apache.org>
* @author Scott Deboy <sdeboy@apache.org>
*
*/
public final class LineIconFactory {
private static final Logger logger = LogManager.getLogger(LineIconFactory.class);
/**
*
*/
private LineIconFactory() {
}
public static final Icon createExpandIcon() {
int size = 8;
int xOffSet = 0;
int yOffSet = 0;
try {
GraphicsEnvironment environment =
GraphicsEnvironment.getLocalGraphicsEnvironment();
BufferedImage image = new BufferedImage(size, size, BufferedImage.TYPE_INT_ARGB);
Graphics2D g2D =
environment.createGraphics(
image);
g2D.setBackground(new Color(0,0,0,0));
g2D.clearRect(0,0,size,size);
g2D.setStroke(new BasicStroke(1.5f));
g2D.setRenderingHint(
RenderingHints.KEY_STROKE_CONTROL, RenderingHints.VALUE_STROKE_PURE);
g2D.setColor(Color.black);
g2D.drawLine(
xOffSet, (size / 2) + yOffSet, size - xOffSet,
(size / 2) + yOffSet);
g2D.drawLine(
xOffSet + (size/2), yOffSet, xOffSet + (size/2),
(size) + yOffSet);
return new ImageIcon(image);
} catch (Exception e) {
logger.error("failed to create a Expand icon", e);
}
return null;
}
public static final Icon createCollapseIcon() {
int size = 8;
int xOffSet = 0;
int yOffSet = 0;
try {
GraphicsEnvironment environment =
GraphicsEnvironment.getLocalGraphicsEnvironment();
BufferedImage image = new BufferedImage(size, size, BufferedImage.TYPE_INT_ARGB);
Graphics2D g2D =
environment.createGraphics(
image);
g2D.setBackground(new Color(0,0,0,0));
g2D.clearRect(0,0,size,size);
g2D.setStroke(new BasicStroke(1.5f));
g2D.setRenderingHint(
RenderingHints.KEY_STROKE_CONTROL, RenderingHints.VALUE_STROKE_PURE);
g2D.setColor(Color.black);
g2D.drawLine(
xOffSet, (size / 2) + yOffSet, size - xOffSet,
(size / 2) + yOffSet);
return new ImageIcon(image);
} catch (Exception e) {
logger.error("failed to create a Collapse icon", e);
}
return null;
}
public static final Icon createCloseIcon() {
return new CloseIcon(8, 0, 0);
}
public static final Icon createBlankIcon() {
return new BlankIcon(16);
}
/**
* A nice and simple 'X' style icon that is used to indicate a 'close' operation.
*
* @author Scott Deboy <sdeboy@apache.org>
*
*/
private static class BlankIcon implements Icon {
int size;
public BlankIcon(int size) {
this.size = size;
}
public int getIconHeight() {
return size;
}
public int getIconWidth() {
return size;
}
public void paintIcon(Component c, Graphics g, int x, int y) {
}
}
/**
* A nice and simple 'X' style icon that is used to indicate a 'close' operation.
*
* @author Scott Deboy <sdeboy@apache.org>
*
*/
private static class CloseIcon implements Icon {
int size;
int xOffSet;
int yOffSet;
public CloseIcon(int size, int xOffSet, int yOffSet) {
this.size = size;
this.xOffSet = xOffSet;
this.yOffSet = yOffSet;
}
public int getIconHeight() {
return size;
}
public int getIconWidth() {
return size;
}
public void paintIcon(Component c, Graphics g, int x, int y) {
Graphics2D g2D = (Graphics2D) g;
g2D.setStroke(new BasicStroke(1.5f));
g2D.setRenderingHint(
RenderingHints.KEY_STROKE_CONTROL, RenderingHints.VALUE_STROKE_PURE);
g2D.setColor(Color.black);
g2D.drawLine(
x + xOffSet, y + yOffSet, x + size + xOffSet, y + size + yOffSet);
g2D.drawLine(
x + xOffSet, y + size + yOffSet, x + size + xOffSet, y + yOffSet);
}
}
}