jdk/make/tools/swing-nimbus/classes/org/jdesktop/swingx/designer/TemplateLayer.java
changeset 3754 41a9e8c0158c
parent 3725 b2169a6c9c86
parent 3753 c0c9b5f2c874
child 3755 683ea3f13029
equal deleted inserted replaced
3725:b2169a6c9c86 3754:41a9e8c0158c
     1 /*
       
     2  * Copyright 2002-2007 Sun Microsystems, Inc.  All Rights Reserved.
       
     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
       
     4  *
       
     5  * This code is free software; you can redistribute it and/or modify it
       
     6  * under the terms of the GNU General Public License version 2 only, as
       
     7  * published by the Free Software Foundation.  Sun designates this
       
     8  * particular file as subject to the "Classpath" exception as provided
       
     9  * by Sun in the LICENSE file that accompanied this code.
       
    10  *
       
    11  * This code is distributed in the hope that it will be useful, but WITHOUT
       
    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
       
    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
       
    14  * version 2 for more details (a copy is included in the LICENSE file that
       
    15  * accompanied this code).
       
    16  *
       
    17  * You should have received a copy of the GNU General Public License version
       
    18  * 2 along with this work; if not, write to the Free Software Foundation,
       
    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
       
    20  *
       
    21  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
       
    22  * CA 95054 USA or visit www.sun.com if you need additional information or
       
    23  * have any questions.
       
    24  */
       
    25 package org.jdesktop.swingx.designer;
       
    26 
       
    27 import org.jdesktop.swingx.designer.effects.Effect;
       
    28 
       
    29 import javax.imageio.ImageIO;
       
    30 import javax.swing.JOptionPane;
       
    31 import javax.swing.SwingUtilities;
       
    32 import java.awt.Color;
       
    33 import java.awt.FontMetrics;
       
    34 import java.awt.Graphics2D;
       
    35 import java.awt.GraphicsConfiguration;
       
    36 import java.awt.Image;
       
    37 import java.awt.geom.Rectangle2D;
       
    38 import java.awt.image.BufferedImage;
       
    39 import java.io.File;
       
    40 import java.io.IOException;
       
    41 import java.lang.ref.SoftReference;
       
    42 
       
    43 /**
       
    44  * TemplateLayer
       
    45  *
       
    46  * @author Created by Jasper Potts (Jul 2, 2007)
       
    47  */
       
    48 public class TemplateLayer extends Layer {
       
    49 
       
    50     private String fileName;
       
    51     private transient SoftReference<BufferedImage> imgRef = null;
       
    52 
       
    53     public TemplateLayer() {
       
    54         type = LayerType.template;
       
    55     }
       
    56 
       
    57     public TemplateLayer(String fileName, BufferedImage templateImage) {
       
    58         super("Template");
       
    59         this.fileName = fileName;
       
    60         type = LayerType.template;
       
    61         if (templateImage != null) {
       
    62             imgRef = new SoftReference<BufferedImage>(templateImage);
       
    63         }
       
    64     }
       
    65 
       
    66     // =================================================================================================================
       
    67     // Methods
       
    68 
       
    69     public String getName() {
       
    70         return super.getName();
       
    71     }
       
    72 
       
    73     /**
       
    74      * template layers are always locked
       
    75      *
       
    76      * @return <code>true</code>
       
    77      */
       
    78     public boolean isLocked() {
       
    79         return true;
       
    80     }
       
    81 
       
    82     public void add(SimpleShape shape) {
       
    83         throw new IllegalStateException("Template layers can't contain shapes");
       
    84     }
       
    85 
       
    86     public void addEffect(Effect effect) {
       
    87         throw new IllegalStateException("Template layers can't contain effects");
       
    88     }
       
    89 
       
    90     public void addLayer(int i, Layer layer) {
       
    91         throw new IllegalStateException("Template layers can't contain sub layers");
       
    92     }
       
    93 
       
    94     public void addLayer(Layer layer) {
       
    95         throw new IllegalStateException("Template layers can't contain sub layers");
       
    96     }
       
    97 
       
    98     public void paint(Graphics2D g2, double pixelSize) {
       
    99         if (isVisible()) {
       
   100             BufferedImage img = getTemplateImage();
       
   101             if (img != null) g2.drawImage(img, 0, 0, null);
       
   102         }
       
   103     }
       
   104 
       
   105 
       
   106     public Image getBuffer(GraphicsConfiguration graphicsConfiguration) {
       
   107         return getTemplateImage();
       
   108     }
       
   109 
       
   110     public BufferedImage getTemplateImage() {
       
   111         BufferedImage img = null;
       
   112         if (imgRef == null || (img = imgRef.get()) == null) {
       
   113 
       
   114             // can not access canvas
       
   115             final File templateImgFile = new File(getCanvas().getTemplatesDir(), fileName);
       
   116             System.out.println("templateImgFile = " + templateImgFile.getAbsolutePath());
       
   117             System.out.println("templateImgFile.exists = " + templateImgFile.exists());
       
   118             try {
       
   119                 img = ImageIO.read(templateImgFile);
       
   120                 imgRef = new SoftReference<BufferedImage>(img);
       
   121             } catch (IOException e) {
       
   122                 e.printStackTrace();
       
   123                 // create error image
       
   124                 img = new BufferedImage(getCanvas().getSize().width, getCanvas().getSize().height,
       
   125                         BufferedImage.TYPE_INT_RGB);
       
   126                 Graphics2D g2 = img.createGraphics();
       
   127                 g2.setColor(Color.RED);
       
   128                 g2.fillRect(0, 0, img.getWidth(), img.getHeight());
       
   129                 g2.setColor(Color.WHITE);
       
   130                 g2.setFont(g2.getFont().deriveFont(8f));
       
   131                 FontMetrics fontMetrics = g2.getFontMetrics();
       
   132                 Rectangle2D stringBounds = fontMetrics.getStringBounds("Missing Image", g2);
       
   133                 int offsetX = (int) ((img.getWidth() - stringBounds.getWidth()) / 2d);
       
   134                 int offsetY = (int) (((img.getHeight() - stringBounds.getHeight()) / 2d) - stringBounds.getY());
       
   135                 g2.drawString("Missing Image", offsetX, offsetY);
       
   136                 g2.dispose();
       
   137                 imgRef = new SoftReference<BufferedImage>(img);
       
   138             }
       
   139         }
       
   140         return img;
       
   141     }
       
   142 }