| /* |
| * 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); |
| } |
| } |
| } |