javaquery/api/src/main/java/org/apidesign/bck2brwsr/htmlpage/ImageDataWrapper.java
author Anton Epple <toni.epple@eppleton.de>
Mon, 27 May 2013 08:30:30 +0200
branchcanvas
changeset 1145 0e2c3676d77a
parent 1135 836bc1845c65
child 1156 9a6cf322f890
permissions -rw-r--r--
Readded Image and ImageData to have the complete API again. No need to use Data in API anymore. Added caching to Image. Image are not required to be added to the page anymore, but are created in javaScript instead.
     1 /**
     2  * Back 2 Browser Bytecode Translator
     3  * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
     4  *
     5  * This program is free software: you can redistribute it and/or modify
     6  * it under the terms of the GNU General Public License as published by
     7  * the Free Software Foundation, version 2 of the License.
     8  *
     9  * This program is distributed in the hope that it will be useful,
    10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    12  * GNU General Public License for more details.
    13  *
    14  * You should have received a copy of the GNU General Public License
    15  * along with this program. Look for COPYING file in the top folder.
    16  * If not, see http://opensource.org/licenses/GPL-2.0.
    17  */
    18 /*
    19  * To change this template, choose Tools | Templates
    20  * and open the template in the editor.
    21  */
    22 package org.apidesign.bck2brwsr.htmlpage;
    23 
    24 import net.java.html.canvas.ImageData;
    25 import org.apidesign.bck2brwsr.core.JavaScriptBody;
    26 
    27 /**
    28  *
    29  * @author Anton Epple <toni.epple@eppleton.de>
    30  */
    31 public class ImageDataWrapper implements ImageData{
    32 
    33     private Object imageData;
    34     private Data data;
    35 
    36     public ImageDataWrapper(Object imageData) {
    37         this.imageData = imageData;
    38     }
    39     
    40     public Data getData(){
    41         if (data == null){
    42             data = new Data(getDataImpl(imageData));
    43         }
    44         return data;
    45     }
    46     
    47     @JavaScriptBody(args = {"imageData"}, body = "return imageData.data")
    48     public native Object getDataImpl(Object imageData);
    49 
    50     public double getWidth() {
    51         return getWidthImpl(imageData);
    52     }
    53 
    54     @JavaScriptBody(args = {"imageData"}, body = "return imagedata.width;")
    55     private static native double getWidthImpl(Object imageData);
    56 
    57     public double getHeight() {
    58         return getHeightImpl(imageData);
    59     }
    60 
    61     @JavaScriptBody(args = {"imageData"}, body = "return imagedata.height;")
    62     private static native double getHeightImpl(Object imageData);
    63 
    64     Object object() {
    65         return imageData;
    66     }
    67 
    68     @Override
    69     public int getPixel(double x, double y) {
    70         throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
    71     }
    72 
    73     @Override
    74     public void setPixel(double x, double y, int value) {
    75         throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
    76     }
    77 
    78 
    79     public static class Data {
    80 
    81         Object data;
    82 
    83         public Data(Object data) {
    84             this.data = data;
    85         }
    86 
    87         public int get(int index) {
    88             return getImpl(data, index);
    89         }
    90 
    91         public void set(int index, int value) {
    92             setImpl(data, index, value);
    93         }
    94 
    95         @JavaScriptBody(args = {"data", "index", "value"}, body = "data[index]=value;")
    96         private static native void setImpl(Object data, int index, int value);
    97 
    98         @JavaScriptBody(args = {"imagedata", "index"}, body = "return data[index];")
    99         private static native int getImpl(Object data, int index);
   100     }
   101 }