* it in the org.xwt.plat package, and add code to this file's static
* block to detect the new platform.
*/
-public class Platform {
+public abstract class Platform {
- // Static Data /////////////////////////////////////////////////////////////////////////////////////
-
- /**
- * set to true during the delivery of a KeyPressed:C-v/A-v or Press3; it is safe to use a
- * 'global' here, since message delivery is single-threaded and non-preemptable
- */
- static boolean clipboardReadEnabled = false;
-
- /** The appropriate Platform object for this JVM */
- static Platform platform = null;
+ public Platform() { platform = this; }
- /** true if proxy autodetection has already been run */
- static boolean alreadyDetectedProxy = false;
-
- /** the result of proxy autodetection */
- static org.xwt.HTTP.Proxy cachedProxyInfo = null;
+ // Static Data /////////////////////////////////////////////////////////////////////////////////////
- /** the current build */
- public static String build = "unknown";
+ static boolean clipboardReadEnabled = false; ///< true iff inside a C-v/A-v/Press3 trap handler
+ static Platform platform = null; ///< The appropriate Platform object for this JVM
+ static boolean alreadyDetectedProxy = false; ///< true if proxy autodetection has already been run
+ static org.xwt.HTTP.Proxy cachedProxyInfo = null; ///< the result of proxy autodetection
+ public static String build = "unknown"; ///< the current build
// VM Detection Logic /////////////////////////////////////////////////////////////////////
- /** do-nothing method that forces <clinit> to run */
- public static void forceLoad() { }
+ public static void forceLoad() { } ///< do-nothing method that forces <clinit> to run
// If you create a new subclass of Platform, you should add logic
// here to detect it. Do not reference your class directly -- use
else if (version.startsWith("1.1") && vendor.startsWith("Microsoft")) platform_class = "Microsoft";
else if (!version.startsWith("1.0") && !version.startsWith("1.1")) platform_class = "Java2";
- /*
- // Disable 2d hardware acceleration on Jaguar
- if (os_name.equals("Mac OS X") && os_version.startsWith("10.2")) System.setProperty("com.apple.hwaccel", "false");
- */
- System.setProperty("com.apple.hwaccel", "true");
+ // Disable 2d hardware acceleration on Jaguar (do we need this?)
+ // if (os_name.equals("Mac OS X") && os_version.startsWith("10.2")) System.setProperty("com.apple.hwaccel", "false");
+ // System.setProperty("com.apple.hwaccel", "true");
- if (platform_class != null) {
- platform = (Platform)Class.forName("org.xwt.plat." + platform_class).newInstance();
- platform.init();
- }
+ if (platform_class != null)
+ Class.forName("org.xwt.plat." + platform_class).newInstance();
try {
build = (String)Class.forName("org.xwt.Build").getField("build").get(null);
if (platform_class == null) {
if (Log.on) Log.log(Platform.class, "Unable to detect JVM");
- new Platform().criticalAbort("Unable to detect JVM");
+ criticalAbort("Unable to detect JVM");
}
if (Log.on) Log.log(Platform.class, " platform = " + platform.getDescriptiveName());
} catch (Exception e) {
if (Log.on) Log.log(Platform.class, "Exception while trying to detect JVM");
if (Log.on) Log.log(Platform.class, e);
- new Platform().criticalAbort("Unable to detect JVM");
+ criticalAbort("Unable to detect JVM");
}
}
- // Methods to be Overridden ////////////////////////////////////////////////////////////////////
+ // Methods to be Overridden ///////////////////////////////////////////////////////////////////
/** a string describing the VM */
protected String getDescriptiveName() { return "Generic Java 1.1 VM"; }
- /** this initializes the platform; code in here can invoke methods on Platform since Platform.platform has already been set */
- protected void init() { }
+ /** invoked after initialization messages have been printed; useful for additional platform detection log messages */
protected void postInit() { }
- /** creates and returns a doublebuffer 'belonging' to <tt>owner</tt>; we need to associate PixelBuffers to surfaces
- * due to AWT 1.1 requirements (definately for Navigator, possibly also for MSJVM).
- */
- public static PixelBuffer createPixelBuffer(int w, int h, Surface s) { return platform._createPixelBuffer(w, h, s); }
+ protected Surface _createSurface(Box b, boolean framed) { return null; }
+ protected Picture _createPicture(Res r) { return null; }
protected PixelBuffer _createPixelBuffer(int w, int h, Surface owner) { return null; }
-
- /** creates and returns a picture */
- public static Picture createPicture(int[] data, int w, int h) { return platform._createPicture(data, w, h); }
- public static Picture createAlphaOnlyPicture(byte[] data, int w, int h) { return platform._createAlphaOnlyPicture(data, w, h); }
-
- protected Picture _createPicture(int[] b, int w, int h) { return null; }
- protected Picture _createAlphaOnlyPicture(byte[] b, int w, int h) {
- int[] b2 = new int[b.length];
- for(int i=0;i<b.length;i++) b2[i] = (b[i]&0xff) << 24;
- return _createPicture(b2,w,h);
- }
+ protected Font.Glyph _createGlyph(org.xwt.Font f, char c) { return new DefaultGlyph(f, c); }
- /** should return true if it is safe to supress full-surface dirties immediately after a window resize */
- public static boolean supressDirtyOnResize() { return platform._supressDirtyOnResize(); }
- protected boolean _supressDirtyOnResize() { return false; }
+ public static PixelBuffer createPixelBuffer(int w, int h, Surface s) { return platform._createPixelBuffer(w, h, s); }
+ public static Picture createPicture(Res r) { return platform._createPicture(r); }
+ public static Font.Glyph createGlyph(org.xwt.Font f, char c) { return platform._createGlyph(f, c); }
+ public static Surface createSurface(Box b, boolean framed, boolean refreshable) {
+ Surface ret = platform._createSurface(b, framed);
+ ret.setInvisible(false);
+ ret.setLimits(b.minwidth, b.minheight, b.maxwidth, b.maxheight);
+ if (refreshable) {
+ Surface.allSurfaces.addElement(ret);
+ ret.dirty(0, 0, b.width, b.height);
+ ret.Refresh();
+ }
+ return ret;
+ }
/** the human-readable name of the key mapped to XWT's 'alt' key */
public static String altKeyName() { return platform._altKeyName(); }
}
/** convert a JPEG into an Image */
- public static synchronized Picture decodeJPEG(InputStream is, String name) { return platform._decodeJPEG(is, name); }
- protected Picture _decodeJPEG(InputStream is, String name) { return null; }
+ public static synchronized void decodeJPEG(InputStream is, Picture p) { platform._decodeJPEG(is, p); }
+ protected abstract void _decodeJPEG(InputStream is, Picture p);
/** displays a platform-specific "open file" dialog and returns the chosen filename, or null if the user hit cancel */
protected String _fileDialog(String suggestedFileName, boolean write) { return null; }
platform._criticalAbort(message);
}
- /** this method invokes the platform _createSurface() method and then enforces a few post-call invariants */
- protected Surface _createSurface(Box b, boolean framed) { return null; }
- public static Surface createSurface(Box b, boolean framed, boolean refreshable) {
- Surface ret = platform._createSurface(b, framed);
- ret.setInvisible(false);
-
- ret.setLimits(b.minwidth, b.minheight, b.maxwidth, b.maxheight);
-
- if (refreshable) {
- Surface.allSurfaces.addElement(ret);
- ret.dirty(0, 0, b.width, b.height);
- ret.Refresh();
- }
- return ret;
- }
-
/** detects proxy settings */
protected synchronized org.xwt.HTTP.Proxy _detectProxy() { return null; }
public static synchronized org.xwt.HTTP.Proxy detectProxy() {
if (cachedProxyInfo != null) return cachedProxyInfo;
return cachedProxyInfo;
- }
+ }
/** returns a Scheduler instance; used to implement platform-specific schedulers */
protected Scheduler _getScheduler() { return new Scheduler(); }
public static Scheduler getScheduler() { return platform._getScheduler(); }
-
- public static void running() { platform._running(); }
- public void _running() { new Semaphore().block(); }
+
+ // FEATURE: be more efficient for many of the subclasses
+ public static class DefaultGlyph extends Font.Glyph {
+ private Picture p = null;
+ public DefaultGlyph(org.xwt.Font f, char c) { super(f, c); }
+ public Picture getPicture() {
+ if (p == null && isLoaded) {
+ p = createPicture(null);
+ p.data = new int[data.length];
+ for(int i=0; i<data.length; i++) p.data[i] = (data[i] & 0xff) << 24;
+ data = null;
+ p.width = this.width;
+ p.height = this.height;
+ }
+ return p;
+ }
+ }
+
+
}
projects / org.ibex.core.git / blobdiff