| /* |
| * Copyright (c) 1998, 2005, 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 javax.swing.colorchooser; |
| |
| import javax.swing.*; |
| import javax.swing.border.*; |
| import javax.swing.event.*; |
| import javax.swing.text.*; |
| import java.awt.*; |
| import java.awt.image.*; |
| import java.awt.event.*; |
| import java.beans.PropertyChangeEvent; |
| import java.beans.PropertyChangeListener; |
| import java.io.Serializable; |
| import sun.swing.SwingUtilities2; |
| |
| |
| /** |
| * The standard preview panel for the color chooser. |
| * <p> |
| * <strong>Warning:</strong> |
| * Serialized objects of this class will not be compatible with |
| * future Swing releases. The current serialization support is |
| * appropriate for short term storage or RMI between applications running |
| * the same version of Swing. As of 1.4, support for long term storage |
| * of all JavaBeans<sup><font size="-2">TM</font></sup> |
| * has been added to the <code>java.beans</code> package. |
| * Please see {@link java.beans.XMLEncoder}. |
| * |
| * @author Steve Wilson |
| * @see JColorChooser |
| */ |
| class DefaultPreviewPanel extends JPanel { |
| |
| private int squareSize = 25; |
| private int squareGap = 5; |
| private int innerGap = 5; |
| |
| |
| private int textGap = 5; |
| private Font font = new Font(Font.DIALOG, Font.PLAIN, 12); |
| private String sampleText; |
| |
| private int swatchWidth = 50; |
| |
| private Color oldColor = null; |
| |
| private JColorChooser getColorChooser() { |
| return (JColorChooser)SwingUtilities.getAncestorOfClass( |
| JColorChooser.class, this); |
| } |
| |
| public Dimension getPreferredSize() { |
| JComponent host = getColorChooser(); |
| if (host == null) { |
| host = this; |
| } |
| FontMetrics fm = host.getFontMetrics(getFont()); |
| |
| int ascent = fm.getAscent(); |
| int height = fm.getHeight(); |
| int width = SwingUtilities2.stringWidth(host, fm, getSampleText()); |
| |
| int y = height*3 + textGap*3; |
| int x = squareSize * 3 + squareGap*2 + swatchWidth + width + textGap*3; |
| return new Dimension( x,y ); |
| } |
| |
| public void paintComponent(Graphics g) { |
| if (oldColor == null) |
| oldColor = getForeground(); |
| |
| g.setColor(getBackground()); |
| g.fillRect(0,0,getWidth(),getHeight()); |
| |
| if (this.getComponentOrientation().isLeftToRight()) { |
| int squareWidth = paintSquares(g, 0); |
| int textWidth = paintText(g, squareWidth); |
| paintSwatch(g, squareWidth + textWidth); |
| } else { |
| int swatchWidth = paintSwatch(g, 0); |
| int textWidth = paintText(g, swatchWidth); |
| paintSquares(g , swatchWidth + textWidth); |
| |
| } |
| } |
| |
| private int paintSwatch(Graphics g, int offsetX) { |
| int swatchX = offsetX; |
| g.setColor(oldColor); |
| g.fillRect(swatchX, 0, swatchWidth, (squareSize) + (squareGap/2)); |
| g.setColor(getForeground()); |
| g.fillRect(swatchX, (squareSize) + (squareGap/2), swatchWidth, (squareSize) + (squareGap/2) ); |
| return (swatchX+swatchWidth); |
| } |
| |
| private int paintText(Graphics g, int offsetX) { |
| g.setFont(getFont()); |
| JComponent host = getColorChooser(); |
| if (host == null) { |
| host = this; |
| } |
| FontMetrics fm = SwingUtilities2.getFontMetrics(host, g); |
| |
| int ascent = fm.getAscent(); |
| int height = fm.getHeight(); |
| int width = SwingUtilities2.stringWidth(host, fm, getSampleText()); |
| |
| int textXOffset = offsetX + textGap; |
| |
| Color color = getForeground(); |
| |
| g.setColor(color); |
| |
| SwingUtilities2.drawString(host, g, getSampleText(),textXOffset+(textGap/2), |
| ascent+2); |
| |
| g.fillRect(textXOffset, |
| ( height) + textGap, |
| width + (textGap), |
| height +2); |
| |
| g.setColor(Color.black); |
| SwingUtilities2.drawString(host, g, getSampleText(), |
| textXOffset+(textGap/2), |
| height+ascent+textGap+2); |
| |
| |
| g.setColor(Color.white); |
| |
| g.fillRect(textXOffset, |
| ( height + textGap) * 2, |
| width + (textGap), |
| height +2); |
| |
| g.setColor(color); |
| SwingUtilities2.drawString(host, g, getSampleText(), |
| textXOffset+(textGap/2), |
| ((height+textGap) * 2)+ascent+2); |
| |
| return width + textGap*3; |
| |
| } |
| |
| private int paintSquares(Graphics g, int offsetX) { |
| |
| int squareXOffset = offsetX; |
| Color color = getForeground(); |
| |
| g.setColor(Color.white); |
| g.fillRect(squareXOffset,0,squareSize,squareSize); |
| g.setColor(color); |
| g.fillRect(squareXOffset+innerGap, |
| innerGap, |
| squareSize - (innerGap*2), |
| squareSize - (innerGap*2)); |
| g.setColor(Color.white); |
| g.fillRect(squareXOffset+innerGap*2, |
| innerGap*2, |
| squareSize - (innerGap*4), |
| squareSize - (innerGap*4)); |
| |
| g.setColor(color); |
| g.fillRect(squareXOffset,squareSize+squareGap,squareSize,squareSize); |
| |
| g.translate(squareSize+squareGap, 0); |
| g.setColor(Color.black); |
| g.fillRect(squareXOffset,0,squareSize,squareSize); |
| g.setColor(color); |
| g.fillRect(squareXOffset+innerGap, |
| innerGap, |
| squareSize - (innerGap*2), |
| squareSize - (innerGap*2)); |
| g.setColor(Color.white); |
| g.fillRect(squareXOffset+innerGap*2, |
| innerGap*2, |
| squareSize - (innerGap*4), |
| squareSize - (innerGap*4)); |
| g.translate(-(squareSize+squareGap), 0); |
| |
| g.translate(squareSize+squareGap, squareSize+squareGap); |
| g.setColor(Color.white); |
| g.fillRect(squareXOffset,0,squareSize,squareSize); |
| g.setColor(color); |
| g.fillRect(squareXOffset+innerGap, |
| innerGap, |
| squareSize - (innerGap*2), |
| squareSize - (innerGap*2)); |
| g.translate(-(squareSize+squareGap), -(squareSize+squareGap)); |
| |
| |
| |
| g.translate((squareSize+squareGap)*2, 0); |
| g.setColor(Color.white); |
| g.fillRect(squareXOffset,0,squareSize,squareSize); |
| g.setColor(color); |
| g.fillRect(squareXOffset+innerGap, |
| innerGap, |
| squareSize - (innerGap*2), |
| squareSize - (innerGap*2)); |
| g.setColor(Color.black); |
| g.fillRect(squareXOffset+innerGap*2, |
| innerGap*2, |
| squareSize - (innerGap*4), |
| squareSize - (innerGap*4)); |
| g.translate(-((squareSize+squareGap)*2), 0); |
| |
| g.translate((squareSize+squareGap)*2, (squareSize+squareGap)); |
| g.setColor(Color.black); |
| g.fillRect(squareXOffset,0,squareSize,squareSize); |
| g.setColor(color); |
| g.fillRect(squareXOffset+innerGap, |
| innerGap, |
| squareSize - (innerGap*2), |
| squareSize - (innerGap*2)); |
| g.translate(-((squareSize+squareGap)*2), -(squareSize+squareGap)); |
| |
| return (squareSize*3+squareGap*2); |
| |
| } |
| |
| private String getSampleText() { |
| if (this.sampleText == null) { |
| this.sampleText = UIManager.getString("ColorChooser.sampleText", getLocale()); |
| } |
| return this.sampleText; |
| } |
| } |