--- /dev/null
+// Copyright 2004 Adam Megacz, see the COPYING file for licensing [LGPL]
+package org.ibex.plat;
+
+import gnu.gcj.RawData;
+import java.util.*;
+import org.ibex.js.*;
+import org.ibex.util.*;
+import org.ibex.*;
+
+/** Platform implementation for POSIX compliant operating systems with an X11 Server */
+public class X11 extends POSIX {
+
+ // Static Data ///////////////////////////////////////////////////////////
+
+ /**
+ * When the user reads from the clipboard, the main thread blocks
+ * on this semaphore until we get an X11 SelectionNotify. Crude,
+ * but effective. We know that only one thread will ever block on
+ * this, since only one thread can ever be running JavaScript.
+ */
+ public static Semaphore waiting_for_selection_event = new Semaphore();
+
+ /** our local (in-process) copy of the clipboard */
+ public static String clipboard = null;
+
+ /** map from Window's (casted to jlong, wrapped in java.lang.Long) to X11Surface objects */
+ public static Hashtable windowToSurfaceMap = new Hashtable();
+
+
+ // General Methods ///////////////////////////////////////////////////////
+
+ protected String _getAltKeyName() { return System.getProperty("os.name", "").indexOf("SunOS") != -1 ? "Meta" : "Alt"; }
+
+ protected Picture _createPicture(JS r) { return new X11Picture(r); }
+ protected PixelBuffer _createPixelBuffer(int w, int h, Surface owner) { return new X11PixelBuffer(w, h); }
+ protected Surface _createSurface(Box b, boolean framed) { return new X11Surface(b, framed); }
+ protected boolean _needsAutoClick() { return true; }
+ protected native int _getScreenWidth();
+ protected native int _getScreenHeight();
+ protected native String _getClipBoard();
+ protected native void _setClipBoard(String s);
+ protected boolean _needsAutoDoubleClick() { return true; }
+ protected native void eventThread();
+ private native void natInit();
+
+ public X11() { }
+ public void postInit() {
+ natInit();
+ (new Thread() { public void run() { eventThread(); } }).start();
+ }
+
+ // X11Surface /////////////////////////////////////////////////////
+
+ /** Implements a Surface as an X11 Window */
+ public static class X11Surface extends Surface.DoubleBufferedSurface {
+
+ gnu.gcj.RawData window;
+ gnu.gcj.RawData gc;
+ boolean framed = false;
+ Semaphore waitForCreation = new Semaphore();
+
+ public native void setInvisible(boolean i);
+ public void _setMaximized(boolean m) { if (Log.on) Log.warn(this, "X11 can't maximize windows"); }
+ public native void setIcon(Picture p);
+ public native void _setMinimized(boolean b);
+ public native void setTitleBarText(String s);
+ public native void _setSize(int w, int h);
+ public native void setLocation();
+ public native void natInit();
+ public native void toFront();
+ public native void toBack();
+ public native void syncCursor();
+ public native void _dispose();
+ public native void setLimits(int minw, int minh, int maxw, int maxh);
+ public native void blit(PixelBuffer s, int sx, int sy, int dx, int dy, int dx2, int dy2);
+ public native void dispatchEvent(gnu.gcj.RawData ev);
+ public void setMinimumSize(int minx, int miny, boolean resizable) {
+ setLimits(minx, miny, resizable ? Short.MAX_VALUE : minx, resizable ? Short.MAX_VALUE : miny);
+ }
+ public X11Surface(Box root, boolean framed) {
+ super(root);
+ this.framed = framed;
+ natInit();
+ }
+
+ }
+
+
+ // Our Subclass of Picture ///////////////////////////////////////////////
+
+ /**
+ * Implements a Picture. No special X11 structure is created
+ * unless the image has no alpha (in which case a
+ * non-shared-pixmap PixelBuffer is created), or all-or-nothing
+ * alpha (in which case a non-shared-pixmap PixelBuffer with a
+ * stipple bitmap is created).
+ */
+ public static class X11Picture extends Picture {
+
+ public X11PixelBuffer doublebuf = null;
+
+ public int getWidth() { return width; }
+ public int getHeight() { return height; }
+
+ boolean initialized = false;
+ public X11Picture(JS r) { super(r); }
+ public void init() {
+ if (initialized) return;
+ initialized = true;
+ boolean needsStipple = false;
+
+ // if we have any non-0x00, non-0xFF alphas, we can't double buffer ourselves
+ for(int i=0; i<width*height; i++)
+ if ((data[i] & 0xFF000000) == 0xFF000000)
+ needsStipple = true;
+ else if ((data[i] & 0xFF000000) != 0x00)
+ return;
+
+ buildPixelBuffer(needsStipple);
+ }
+
+ void buildPixelBuffer(boolean needsStipple) {
+ if (doublebuf != null) return;
+ // no point in using a shared pixmap since we'll only write to this image once
+ X11PixelBuffer b = new X11PixelBuffer(width, height, false);
+ b.drawPicture(this, 0, 0, 0, 0, width, height);
+ if (needsStipple) b.createStipple(this);
+ doublebuf = b;
+ }
+ }
+
+ /**
+ * An X11PixelBuffer is implemented as an X11 pixmap. "Normal"
+ * PixelBuffers will use XShm shared pixmaps if
+ * available. X11PixelBuffers created to accelerate Pictures
+ * with all-or-nothing alpha will not use shared pixmaps, however
+ * (since they are only written to once.
+ */
+ public static class X11PixelBuffer extends PixelBuffer {
+
+ int clipx, clipy, clipw, cliph;
+ int width;
+ int height;
+
+ /** PixelBuffers of X11Pictures can have stipples -- the stipple of the Picture */
+ RawData stipple = null;
+
+ /** Sets the PixelBuffer's internal stipple to the alpha==0x00 regions of xpi */
+ public native void createStipple(X11Picture xpi);
+
+ RawData pm; // Pixmap (if any) representing this Picture
+ boolean shared_pixmap = false; // true if pm is a ShmPixmap
+ RawData fake_ximage = null; // a 'fake' XImage corresponding to the shared pixmap; gives us the address and depth parameters
+ RawData shm_segment = null; // XShmSegmentInfo
+
+ RawData gc; // Graphics Interpreter on pm (never changes, so it's fast)
+ RawData clipped_gc; // Graphics Interpreter on pm, use this one if you need a clip/stipple
+
+ /** PixelBuffer mode */
+ public X11PixelBuffer(int w, int h) { this(w, h, true); }
+ public X11PixelBuffer(int w, int h, boolean shared_pixmap) {
+ width = clipw = w;
+ height = cliph = h;
+ clipx = clipy = 0;
+ this.shared_pixmap = shared_pixmap;
+ natInit();
+ }
+
+ public void drawGlyph(Font.Glyph source, int dx, int dy, int cx1, int cy1, int cx2, int cy2, int rgb) {
+ cx1 = Math.max(dx, cx1);
+ cy1 = Math.max(dy, cy1);
+ cx2 = Math.min(dx + source.width, cx2);
+ cy2 = Math.min(dy + source.height, cy2);
+ if (cx1 >= cx2 || cy1 >= cy2) return;
+ X11Picture pic = (X11Picture)((Platform.DefaultGlyph)source).getPicture();
+ pic.init();
+ slowDrawPicture(pic, dx, dy, cx1, cy1, cx2, cy2, rgb, true);
+ }
+ public void drawPicture(Picture source, int dx, int dy, int cx1, int cy1, int cx2, int cy2) {
+ cx1 = Math.max(dx, cx1);
+ cy1 = Math.max(dy, cy1);
+ cx2 = Math.min(dx + source.width, cx2);
+ cy2 = Math.min(dy + source.height, cy2);
+ if (cx1 >= cx2 || cy1 >= cy2) return;
+ ((X11Picture)source).init();
+ if (((X11Picture)source).doublebuf != null)
+ fastDrawPicture(source, dx, dy, cx1, cy1, cx2, cy2);
+ else
+ slowDrawPicture(source, dx, dy, cx1, cy1, cx2, cy2, 0, false);
+ }
+
+ /** fast path for image drawing (no scaling, all-or-nothing alpha) */
+ public native void fastDrawPicture(Picture source, int dx, int dy, int cx1, int cy1, int cx2, int cy2);
+
+ /** slow path for image drawing */
+ public native void slowDrawPicture(Picture source, int dx, int dy, int cx1, int cy1, int cx2, int cy2, int rgb, boolean alphaOnly);
+
+ public int getWidth() { return width; }
+ public int getHeight() { return height; }
+ public native void natInit();
+ public native void fillRect(int x, int y, int x2, int y2, int color);
+ public native void finalize();
+
+ // FIXME: try to use os acceleration
+ public void fillTrapezoid(int x1, int x2, int y1, int x3, int x4, int y2, int argb) {
+ if (x1 == x3 && x2 == x4) {
+ fillRect(x1, y1, x4, y2, argb);
+ } else for(int y=y1; y<y2; y++) {
+ int _x1 = (int)Math.floor((y - y1) * (x3 - x1) / (y2 - y1) + x1);
+ int _y1 = (int)Math.floor(y);
+ int _x2 = (int)Math.ceil((y - y1) * (x4 - x2) / (y2 - y1) + x2);
+ int _y2 = (int)Math.floor(y) + 1;
+ if (_x1 > _x2) { int _x0 = _x1; _x1 = _x2; _x2 = _x0; }
+ fillRect(_x1, _y1, _x2, _y2, argb);
+ }
+ }
+ }
+
+}
projects / org.ibex.core.git / blobdiff