src/org/ibex/plat/Java2.java

   1 // Copyright 2004 Adam Megacz, see the COPYING file for licensing [GPL]
   2 package org.ibex.plat;
   3
   4 import java.awt.*;
   5 import java.awt.event.*;
   6 import java.awt.image.*;
   7 import java.net.*;
   8 import java.util.*;
   9 import org.ibex.util.*;
  10 import org.ibex.*;
  11 import java.lang.reflect.*;
  12
  13
  14 /** Platform class for most reasonable Java1.2+ Java2s */
  15 public class Java2 extends AWT {
  16
  17     private boolean isJava14 = false;
  18
  19     public Java2() {
  20         // disable the focus manager so we can intercept the tab key
  21         String versionString = System.getProperty("java.version", "");
  22         int secondDecimal = versionString.substring(versionString.indexOf('.') + 1).indexOf('.');
  23         if (secondDecimal != -1) versionString = versionString.substring(0, versionString.indexOf('.') + 1 + secondDecimal);
  24         double version = Double.parseDouble(versionString);
  25         if (version >= 1.4) {
  26             isJava14 = true;
  27             try {
  28                 Toolkit t = java.awt.Toolkit.getDefaultToolkit();
  29                 Method m = java.awt.Toolkit.class.getMethod("setDynamicLayout", new Class[] { Boolean.TYPE });
  30                 m.invoke(t, new Object[] { Boolean.TRUE });
  31             } catch (Exception e) {
  32                 Log.info(this, "Exception while trying to enable AWT Dynamic Layout");
  33                 Log.info(this, e);
  34             }
  35         }
  36         javax.swing.FocusManager.setCurrentManager(new javax.swing.FocusManager() {
  37                 public void processKeyEvent(Component focusedComponent, KeyEvent anEvent) { }
  38                 public void focusPreviousComponent(Component aComponent) { }
  39                 public void focusNextComponent(Component aComponent) { }
  40             });
  41     }
  42
  43     /** this is done with reflection in case a new version of the plugin comes out that doesn't let us pull the sun.plugin.* trick */
  44     protected synchronized org.ibex.HTTP.Proxy _detectProxy() {
  45         return (org.ibex.HTTP.Proxy)java.security.AccessController.doPrivileged(new java.security.PrivilegedAction() {
  46                 public Object run() {
  47                     try {
  48                         org.ibex.HTTP.Proxy pi = new org.ibex.HTTP.Proxy();
  49
  50                         Class PluginProxyHandler = Class.forName("sun.plugin.protocol.PluginProxyHandler");
  51                         Method getDefaultProxyHandler = PluginProxyHandler.getMethod("getDefaultProxyHandler", new Class[] { });
  52                         Object proxyHandler = getDefaultProxyHandler.invoke(null, new Object[] { });
  53
  54                         Class ProxyHandler = Class.forName("sun.plugin.protocol.ProxyHandler");
  55                         Method getProxyInfo = ProxyHandler.getMethod("getProxyInfo", new Class[] { URL.class });
  56                         Object proxyInfo = getProxyInfo.invoke(proxyHandler, new Object[] { new URL("http://www.ibex.org") });
  57
  58                         Class ProxyInfo = Class.forName("sun.plugin.protocol.ProxyInfo");
  59
  60                         if (((Boolean)ProxyInfo.getMethod("isSocksUsed", new Class[] { }).invoke(proxyInfo, new Object[] { })).booleanValue()) {
  61                             pi.socksProxyHost =
  62                                 (String)ProxyInfo.getMethod("getSocksProxy", new Class[] { }).invoke(proxyInfo, new Object[] { });
  63                             pi.socksProxyPort =
  64                                 ((Integer)ProxyInfo.getMethod("getSocksPort", new Class[] { }).invoke(proxyInfo, new Object[] { })).intValue();
  65                         }
  66
  67                         if (((Boolean)ProxyInfo.getMethod("isProxyUsed", new Class[] { }).invoke(proxyInfo, new Object[] { })).booleanValue()) {
  68                             pi.httpProxyHost =
  69                                 (String)ProxyInfo.getMethod("getProxy", new Class[] { }).invoke(proxyInfo, new Object[] { });
  70                             pi.httpProxyPort =
  71                                 ((Integer)ProxyInfo.getMethod("getPort", new Class[] { }).invoke(proxyInfo, new Object[] { })).intValue();
  72                         }
  73
  74                         if (pi.httpProxyHost != null || pi.socksProxyHost != null) return pi;
  75                         else return null;
  76
  77                     } catch (Throwable e) {
  78                         if (Log.on) Log.info(this, "No proxy information found in Java Plugin classes");
  79                         return null;
  80                     }
  81                 }});
  82     }
  83
  84     protected PixelBuffer _createPixelBuffer(int w, int h, Surface owner) { return new Java2PixelBuffer(w, h); }
  85     protected Surface _createSurface(final Box root, final boolean framed) {
  86         return (Surface)java.security.AccessController.doPrivileged(new java.security.PrivilegedAction() {
  87                 public Object run() {
  88                     if (isJava14) {
  89                         try {
  90                              // weaken the binding here to avoid link errors on 1.3.x
  91                              Class java14SurfaceClass = Class.forName(Java2.class.getName() + "$Java14Surface");
  92                              Constructor ctor = java14SurfaceClass.getConstructor(new Class[] { Box.class, Boolean.TYPE });
  93                                return (Surface)ctor.newInstance(new Object[] { root, Boolean.valueOf(framed) });
  94                         } catch (Exception e) {
  95                             Log.info(this, e);
  96                             throw new LinkageError("error: " + e);
  97                         }
  98                     } else {
  99                         return new Java2Surface(root, framed);
 100                     }
 101                 }
 102             });
 103     }
 104
 105     // Inner Classes //////////////////////////////////////////////////////////////////
 106
 107     private static Cursor invisibleCursor =
 108         Toolkit.getDefaultToolkit().createCustomCursor(new BufferedImage(2, 2, BufferedImage.TYPE_INT_ARGB),
 109                                                        new Point(1, 1), "invisible");
 110
 111     protected static class Java2Surface extends AWTSurface {
 112
 113         public Java2Surface(Box root, boolean framed) { super(root, framed); }
 114
 115         protected void _setMinimized(boolean b) {
 116             if (frame == null) Log.info(this, "JDK 1.2 can only minimize frames, not windows");
 117             else if (b) frame.setState(java.awt.Frame.ICONIFIED);
 118             else frame.setState(java.awt.Frame.NORMAL);
 119         }
 120
 121         public void syncCursor() {
 122             if (cursor.equals("invisible")) window.setCursor(invisibleCursor);
 123             else super.syncCursor();
 124         }
 125     }
 126
 127     protected static class Java14Surface extends Java2Surface implements WindowStateListener, MouseWheelListener {
 128         public Java14Surface(Box root, boolean framed) {
 129             super(root, true);
 130             // JDK1.4 doesn't like java.lang.Window's...
 131             if (!framed) ((Frame)window).setUndecorated(true);
 132             window.addWindowStateListener(this);
 133             window.addMouseWheelListener(this);
 134             window.setVisible(true);
 135         }
 136
 137         protected void makeVisible() { }
 138
 139         protected void _setMaximized(boolean m) {
 140             if (frame == null) {
 141                 if (Log.on) Log.info(this, "JDK 1.4 can only maximize frames, not windows");
 142                 return;
 143             }
 144             frame.setExtendedState(m ? Frame.MAXIMIZED_BOTH : (minimized ? Frame.ICONIFIED : Frame.NORMAL));
 145         }
 146         protected void _setMinimized(boolean m) {
 147             if (frame == null) {
 148                 if (Log.on) Log.info(this, "JDK 1.4 can only minimize frames, not windows");
 149                 return;
 150             }
 151             frame.setExtendedState(m ? Frame.ICONIFIED : (maximized ? Frame.MAXIMIZED_BOTH : Frame.NORMAL));
 152         }
 153         public void windowStateChanged(WindowEvent e) {
 154             if (e.getOldState() != e.getNewState()) {
 155                 if ((e.getNewState() & Frame.MAXIMIZED_BOTH) != 0) Maximized(true);
 156                 else if (((e.getOldState() & Frame.MAXIMIZED_BOTH) != 0) && (e.getNewState() & Frame.MAXIMIZED_BOTH) == 0)
 157                     Maximized(false);
 158             }
 159         }
 160
 161         public void mouseWheelMoved(MouseWheelEvent m) {
 162             if (m.getScrollType() == MouseWheelEvent.WHEEL_UNIT_SCROLL)
 163                 VScroll(m.getUnitsToScroll());
 164         }
 165     }
 166
 167     protected static class Java2PixelBuffer extends AWTPixelBuffer {
 168         private static ColorModel cm = Toolkit.getDefaultToolkit().getColorModel();
 169         private static Hashtable emptyHashtable = new Hashtable();
 170         private static short[] sbank = null;
 171         private static int[] ibank = null;
 172         private static byte[] bbank = null;
 173         private static int bank_start = 0;
 174         private WritableRaster raster = null;
 175         private SampleModel sm = null;
 176         private DataBuffer buf = null;
 177
 178         // this doens't seem to work on Windows
 179         public void drawGlyph(Picture source, int dx, int dy, int cx1, int cy1, int cx2, int cy2, int rgb) {
 180             AWTPicture src = (AWTPicture)source;
 181             src.init();
 182             Graphics2D g2 = (Graphics2D)i.getGraphics();
 183             g2.setComposite(AlphaComposite.DstOut);
 184             g2.setClip(cx1, cy1, cx2 - cx1, cy2 - cy1);
 185             g2.drawImage(src.i, dx, dy, null);
 186             g2.setComposite(AlphaComposite.DstOver);
 187             g2.setColor(new Color((rgb & 0x00FF0000) >> 16, (rgb & 0x0000FF00) >> 8, (rgb & 0x000000FF)));
 188             g2.fillRect(dx, dy, cx2 - dx, cy2 - dy);
 189             g2.drawImage(i, 0, 0, null);
 190             g2.setClip(0, 0, i.getWidth(null), i.getHeight(null));
 191         }
 192
 193         public Java2PixelBuffer(int w, int h) {
 194             sm = cm.createCompatibleSampleModel(w, h);
 195             int numSamples = w * h * sm.getNumDataElements();
 196             if (sm.getDataType() == DataBuffer.TYPE_USHORT) {
 197                 if (sbank == null || numSamples > 512 * 512 / 3) {
 198                     buf = new DataBufferUShort(numSamples);
 199                 } else {
 200                     if (numSamples > sbank.length - bank_start) {
 201                         bank_start = 0;
 202                         sbank = new short[512 * 512];
 203                     }
 204                     buf = new DataBufferUShort(sbank, numSamples, bank_start);
 205                     bank_start += numSamples;
 206                 }
 207             } else if (sm.getDataType() == DataBuffer.TYPE_BYTE) {
 208                 if (bbank == null || numSamples > 512 * 512 / 3) {
 209                     buf = new DataBufferByte(numSamples);
 210                 } else {
 211                     if (numSamples > bbank.length - bank_start) {
 212                         bank_start = 0;
 213                         bbank = new byte[512 * 512];
 214                     }
 215                     buf = new DataBufferByte(bbank, numSamples, bank_start);
 216                     bank_start += numSamples;
 217                 }
 218             } else if (sm.getDataType() == DataBuffer.TYPE_INT) {
 219                 if (ibank == null || numSamples > 512 * 512 / 3) {
 220                     buf = new DataBufferInt(numSamples);
 221                 } else {
 222                     if (numSamples > ibank.length - bank_start) {
 223                         bank_start = 0;
 224                         ibank = new int[512 * 512];
 225                     }
 226                     buf = new DataBufferInt(ibank, numSamples, bank_start);
 227                     bank_start += numSamples;
 228                 }
 229             }
 230             raster = Raster.createWritableRaster(sm, buf, null);
 231             i = new BufferedImage(cm, raster, false,  emptyHashtable);
 232             g = i.getGraphics();
 233         }
 234     }
 235
 236     protected String getDescriptiveName() { return isJava14 ? "Java 1.4+ JVM" : "Java 1.2+ JVM"; }
 237
 238 }