jdk/make/tools/swing-nimbus/classes/org/jdesktop/swingx/designer/Canvas.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.beans.AbstractBean;
       
    28 import org.jdesktop.swingx.designer.utils.HasResources;
       
    29 import org.jdesktop.swingx.designer.utils.HasUIDefaults;
       
    30 import org.jibx.runtime.IUnmarshallingContext;
       
    31 
       
    32 import javax.swing.UIDefaults;
       
    33 import java.awt.AlphaComposite;
       
    34 import java.awt.Dimension;
       
    35 import java.awt.Graphics2D;
       
    36 import java.awt.Insets;
       
    37 import java.awt.RenderingHints;
       
    38 import java.awt.image.BufferedImage;
       
    39 import java.beans.PropertyChangeEvent;
       
    40 import java.beans.PropertyChangeListener;
       
    41 import java.io.File;
       
    42 import java.util.ArrayList;
       
    43 import java.util.Collection;
       
    44 import java.util.Collections;
       
    45 import java.util.Iterator;
       
    46 import java.util.List;
       
    47 
       
    48 /**
       
    49  * ComponentRegion
       
    50  *
       
    51  * @author Created by Jasper Potts (May 22, 2007)
       
    52  */
       
    53 public class Canvas extends AbstractBean implements LayerContainer, HasUIDefaults, HasResources {
       
    54     private Dimension size;
       
    55     /** list of all layers in the canvas, the first layer is painted on top */
       
    56     private List<Layer> layers;
       
    57     private int nextLayerNameIndex = 1;
       
    58     private BufferedImage buffer;
       
    59     private boolean isValid = false;
       
    60     private Insets stretchingInsets = null;
       
    61     private Layer workingLayer = null;
       
    62     private PropertyChangeListener layersPropertyChangeListener;
       
    63     private UIDefaults canvasUIDefaults = null;
       
    64     private transient File resourcesDir;
       
    65     private transient File imagesDir;
       
    66     private transient File templatesDir;
       
    67 
       
    68     // =================================================================================================================
       
    69     // Constructor
       
    70 
       
    71     /** Private constructor for JIBX */
       
    72     protected Canvas() {
       
    73         layersPropertyChangeListener = new PropertyChangeListener() {
       
    74             public void propertyChange(PropertyChangeEvent evt) {
       
    75                 isValid = false;
       
    76                 // pass on layer change
       
    77                 int index = layers.indexOf((Layer) evt.getSource());
       
    78                 if (index != -1) {
       
    79                     firePropertyChange("layers[" + index + "]." + evt.getPropertyName(), evt.getOldValue(),
       
    80                             evt.getNewValue());
       
    81                 }
       
    82             }
       
    83         };
       
    84     }
       
    85 
       
    86     public Canvas(int width, int height) {
       
    87         this();
       
    88         stretchingInsets = new Insets(1, 1, 1, 1);
       
    89         layers = new ArrayList<Layer>();
       
    90         setSize(new Dimension(width, height));
       
    91         addLayer(new Layer());
       
    92     }
       
    93 
       
    94     // =================================================================================================================
       
    95     // JIBX Methods
       
    96 
       
    97     /**
       
    98      * Called by JIBX before all fields have been set
       
    99      *
       
   100      * @param context The JIBX Unmarshalling Context
       
   101      */
       
   102     private void preSet(IUnmarshallingContext context) {
       
   103         canvasUIDefaults = (UIDefaults) context.getUserContext();
       
   104     }
       
   105 
       
   106     // =================================================================================================================
       
   107     // Bean Methods
       
   108 
       
   109     /**
       
   110      * Get the UIDefaults for this canvas. The UIDefaults is used to store default pallet of colors, fonts etc.
       
   111      *
       
   112      * @return Canvas UIDefaults
       
   113      */
       
   114     public UIDefaults getUiDefaults() {
       
   115         return canvasUIDefaults;
       
   116     }
       
   117 
       
   118     /**
       
   119      * Set the UIDefaults for this canvas. The UIDefaults is used to store default pallet of colors, fonts etc.
       
   120      *
       
   121      * @param canvasUIDefaults Canvas UIDefaults
       
   122      */
       
   123     public void setUiDefaults(UIDefaults canvasUIDefaults) {
       
   124         this.canvasUIDefaults = canvasUIDefaults;
       
   125     }
       
   126 
       
   127     /**
       
   128      * Get the current working layer, is is the layer that new shapes will be drawn into
       
   129      *
       
   130      * @return The current working layer, may be null if there is no working layer
       
   131      */
       
   132     public Layer getWorkingLayer() {
       
   133         return workingLayer;
       
   134     }
       
   135 
       
   136     /**
       
   137      * Set the current working layer, is is the layer that new shapes will be drawn into
       
   138      *
       
   139      * @param workingLayer the new working layer, must be a child of this canvas
       
   140      */
       
   141     public void setWorkingLayer(Layer workingLayer) {
       
   142         Layer old = getWorkingLayer();
       
   143         this.workingLayer = workingLayer;
       
   144         firePropertyChange("workingLayer", old, getWorkingLayer());
       
   145     }
       
   146 
       
   147     public int getNextLayerNameIndex() {
       
   148         return nextLayerNameIndex++;
       
   149     }
       
   150 
       
   151     public Dimension getSize() {
       
   152         return size;
       
   153     }
       
   154 
       
   155     public void setSize(Dimension size) {
       
   156         Dimension old = getSize();
       
   157         this.size = size;
       
   158         buffer = new BufferedImage(this.size.width, this.size.height, BufferedImage.TYPE_INT_ARGB);
       
   159         isValid = false;
       
   160         firePropertyChange("size", old, getSize());
       
   161     }
       
   162 
       
   163 
       
   164     public Insets getStretchingInsets() {
       
   165         return stretchingInsets;
       
   166     }
       
   167 
       
   168     public void setStretchingInsets(Insets stretchingInsets) {
       
   169         Insets old = getStretchingInsets();
       
   170         this.stretchingInsets = stretchingInsets;
       
   171         firePropertyChange("stretchingInsets", old, getStretchingInsets());
       
   172     }
       
   173 
       
   174     public BufferedImage getRenderedImage() {
       
   175         if (!isValid) {
       
   176             Graphics2D g2 = buffer.createGraphics();
       
   177             // clear
       
   178             g2.setComposite(AlphaComposite.Clear);
       
   179             g2.fillRect(0, 0, buffer.getWidth(), buffer.getHeight());
       
   180             // paint
       
   181             g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
       
   182             g2.setComposite(AlphaComposite.SrcOver);
       
   183             for (int i = layers.size() - 1; i >= 0; i--) {
       
   184                 layers.get(i).paint(g2, 1);
       
   185             }
       
   186             g2.dispose();
       
   187         }
       
   188         return buffer;
       
   189     }
       
   190 
       
   191     /**
       
   192      * @return true if this Canvas has not been edited.
       
   193      *         <p/>
       
   194      *         TODO Currently this is not a bound property, but should be. That is, when the Canvas becomes edited
       
   195      *         (usually due to the Layer having a shape added to it), then a property change event should be fired.
       
   196      */
       
   197     public boolean isBlank() {
       
   198         return layers.size() == 0 || (layers.size() == 1 && layers.get(0).isEmpty());
       
   199     }
       
   200 
       
   201     public File getResourcesDir() {
       
   202         return resourcesDir;
       
   203     }
       
   204 
       
   205     public void setResourcesDir(File resourcesDir) {
       
   206         File old = getResourcesDir();
       
   207         this.resourcesDir = resourcesDir;
       
   208         firePropertyChange("resourcesDir", old, getResourcesDir());
       
   209     }
       
   210 
       
   211     public File getImagesDir() {
       
   212         return imagesDir;
       
   213     }
       
   214 
       
   215     public void setImagesDir(File imagesDir) {
       
   216         File old = getImagesDir();
       
   217         this.imagesDir = imagesDir;
       
   218         firePropertyChange("imagesDir", old, getImagesDir());
       
   219     }
       
   220 
       
   221     public File getTemplatesDir() {
       
   222         return templatesDir;
       
   223     }
       
   224 
       
   225     public void setTemplatesDir(File templatesDir) {
       
   226         File old = getTemplatesDir();
       
   227         this.templatesDir = templatesDir;
       
   228         firePropertyChange("templatesDir", old, getTemplatesDir());
       
   229     }
       
   230 
       
   231     // =================================================================================================================
       
   232     // LayerContainer Methods
       
   233 
       
   234     public LayerContainer getParent() {
       
   235         // we are root so null
       
   236         return null;
       
   237     }
       
   238 
       
   239     public void addLayerToBottom(Layer layer) {
       
   240         layers.add(layer);
       
   241         layer.setParent(this);
       
   242         layer.addPropertyChangeListener(layersPropertyChangeListener);
       
   243         // no single layer changes so fire all changed event
       
   244         firePropertyChange("layers", null, layers);
       
   245     }
       
   246 
       
   247     public void addLayer(int i, Layer layer) {
       
   248         layers.add(i, layer);
       
   249         layer.setParent(this);
       
   250         layer.addPropertyChangeListener(layersPropertyChangeListener);
       
   251         // no single layer changes so fire all changed event
       
   252         firePropertyChange("layers", null, layers);
       
   253     }
       
   254 
       
   255     public void addLayer(Layer layer) {
       
   256         layers.add(0, layer);
       
   257         layer.setParent(this);
       
   258         layer.addPropertyChangeListener(layersPropertyChangeListener);
       
   259         // no single layer changes so fire all changed event
       
   260         firePropertyChange("layers", null, layers);
       
   261     }
       
   262 
       
   263     public Layer getLayer(int index) {
       
   264         return layers.get(index);
       
   265     }
       
   266 
       
   267     public int getLayerCount() {
       
   268         return layers.size();
       
   269     }
       
   270 
       
   271     public Iterator<Layer> getLayerIterator() {
       
   272         return Collections.unmodifiableList(layers).iterator();
       
   273     }
       
   274 
       
   275     public Collection<Layer> getLayers() {
       
   276         return Collections.unmodifiableList(layers);
       
   277     }
       
   278 
       
   279     public int indexOfLayer(Layer layer) {
       
   280         return layers.indexOf(layer);
       
   281     }
       
   282 
       
   283     public void removeLayer(Layer layer) {
       
   284         int index = layers.indexOf(layer);
       
   285         if (index != -1) {
       
   286             layers.remove(layer);
       
   287             layer.removePropertyChangeListener(layersPropertyChangeListener);
       
   288             fireIndexedPropertyChange("layers", index, layer, null);
       
   289         }
       
   290     }
       
   291 
       
   292     public Dimension getRootSize() {
       
   293         return getSize();
       
   294     }
       
   295 
       
   296     // =================================================================================================================
       
   297     // JIBX Helper Methods
       
   298 
       
   299     /** Called by JIBX after "layers" has been filled so we can set parents and listeners */
       
   300     private void setupLayers() {
       
   301         for (Layer layer : layers) {
       
   302             layer.setParent(this);
       
   303             layer.addPropertyChangeListener(layersPropertyChangeListener);
       
   304         }
       
   305         // no single layer changes so fire all changed event
       
   306         firePropertyChange("layers", null, layers);
       
   307     }
       
   308 }