Exemple #1
0
 void drawRectangles(NSWindow window, Rectangle[] rects, boolean erase) {
   NSRect frame = window.frame();
   NSGraphicsContext context = window.graphicsContext();
   NSGraphicsContext.setCurrentContext(context);
   NSAffineTransform transform = NSAffineTransform.transform();
   context.saveGraphicsState();
   transform.scaleXBy(1, -1);
   transform.translateXBy(0, -frame.height);
   transform.concat();
   Point parentOrigin;
   if (parent != null) {
     parentOrigin = display.map(parent, null, 0, 0);
   } else {
     parentOrigin = new Point(0, 0);
   }
   context.setCompositingOperation(erase ? OS.NSCompositeClear : OS.NSCompositeSourceOver);
   for (int i = 0; i < rects.length; i++) {
     Rectangle rect = rects[i];
     frame.x = rect.x + parentOrigin.x;
     frame.y = rect.y + parentOrigin.y;
     frame.width = rect.width;
     frame.height = rect.height;
     if (erase) {
       frame.width++;
       frame.height++;
       NSBezierPath.fillRect(frame);
     } else {
       frame.x += 0.5f;
       frame.y += 0.5f;
       NSBezierPath.strokeRect(frame);
     }
   }
   context.flushGraphics();
   context.restoreGraphicsState();
 }
Exemple #2
0
 /**
  * Constructs a new empty Path.
  *
  * <p>This operation requires the operating system's advanced graphics subsystem which may not be
  * available on some platforms.
  *
  * @param device the device on which to allocate the path
  * @exception IllegalArgumentException
  *     <ul>
  *       <li>ERROR_NULL_ARGUMENT - if the device is null and there is no current device
  *     </ul>
  *
  * @exception SWTException
  *     <ul>
  *       <li>ERROR_NO_GRAPHICS_LIBRARY - if advanced graphics are not available
  *     </ul>
  *
  * @exception SWTError
  *     <ul>
  *       <li>ERROR_NO_HANDLES if a handle for the path could not be obtained
  *     </ul>
  *
  * @see #dispose()
  */
 public Path(Device device) {
   super(device);
   handle = NSBezierPath.bezierPath();
   if (handle == null) SWT.error(SWT.ERROR_NO_HANDLES);
   handle.retain();
   handle.moveToPoint(new NSPoint());
   init();
 }
Exemple #3
0
 /**
  * Returns a device independent representation of the receiver.
  *
  * @return the PathData for the receiver
  * @exception SWTException
  *     <ul>
  *       <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed
  *     </ul>
  *
  * @see PathData
  */
 public PathData getPathData() {
   if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
   int count = handle.elementCount();
   int pointCount = 0, typeCount = 0;
   byte[] types = new byte[count];
   float[] pointArray = new float[count * 6];
   int points = OS.malloc(3 * NSPoint.sizeof);
   if (points == 0) SWT.error(SWT.ERROR_NO_HANDLES);
   NSPoint pt = new NSPoint();
   for (int i = 0; i < count; i++) {
     int element = handle.elementAtIndex_associatedPoints_(i, points);
     switch (element) {
       case OS.NSMoveToBezierPathElement:
         types[typeCount++] = SWT.PATH_MOVE_TO;
         OS.memmove(pt, points, NSPoint.sizeof);
         pointArray[pointCount++] = (int) pt.x;
         pointArray[pointCount++] = (int) pt.y;
         break;
       case OS.NSLineToBezierPathElement:
         types[typeCount++] = SWT.PATH_LINE_TO;
         OS.memmove(pt, points, NSPoint.sizeof);
         pointArray[pointCount++] = (int) pt.x;
         pointArray[pointCount++] = (int) pt.y;
         break;
       case OS.NSCurveToBezierPathElement:
         types[typeCount++] = SWT.PATH_CUBIC_TO;
         OS.memmove(pt, points, NSPoint.sizeof);
         pointArray[pointCount++] = (int) pt.x;
         pointArray[pointCount++] = (int) pt.y;
         OS.memmove(pt, points + NSPoint.sizeof, NSPoint.sizeof);
         pointArray[pointCount++] = (int) pt.x;
         pointArray[pointCount++] = (int) pt.y;
         OS.memmove(pt, points + NSPoint.sizeof + NSPoint.sizeof, NSPoint.sizeof);
         pointArray[pointCount++] = (int) pt.x;
         pointArray[pointCount++] = (int) pt.y;
         break;
       case OS.NSClosePathBezierPathElement:
         types[typeCount++] = SWT.PATH_CLOSE;
         break;
     }
   }
   OS.free(points);
   if (pointCount != pointArray.length) {
     float[] temp = new float[pointCount];
     System.arraycopy(pointArray, 0, temp, 0, pointCount);
     pointArray = temp;
   }
   PathData data = new PathData();
   data.types = types;
   data.points = pointArray;
   return data;
 }
Exemple #4
0
 /**
  * Adds to the receiver a circular or elliptical arc that lies within the specified rectangular
  * area.
  *
  * <p>The resulting arc begins at <code>startAngle</code> and extends for <code>arcAngle</code>
  * degrees. Angles are interpreted such that 0 degrees is at the 3 o'clock position. A positive
  * value indicates a counter-clockwise rotation while a negative value indicates a clockwise
  * rotation.
  *
  * <p>The center of the arc is the center of the rectangle whose origin is (<code>x</code>, <code>
  * y</code>) and whose size is specified by the <code>width</code> and <code>height</code>
  * arguments.
  *
  * <p>The resulting arc covers an area <code>width + 1</code> pixels wide by <code>height + 1
  * </code> pixels tall.
  *
  * @param x the x coordinate of the upper-left corner of the arc
  * @param y the y coordinate of the upper-left corner of the arc
  * @param width the width of the arc
  * @param height the height of the arc
  * @param startAngle the beginning angle
  * @param arcAngle the angular extent of the arc, relative to the start angle
  * @exception SWTException
  *     <ul>
  *       <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed
  *     </ul>
  */
 public void addArc(
     float x, float y, float width, float height, float startAngle, float arcAngle) {
   if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
   NSAffineTransform transform = NSAffineTransform.transform();
   transform.translateXBy(x + width / 2f, y + height / 2f);
   transform.scaleXBy(width / 2f, height / 2f);
   NSBezierPath path = NSBezierPath.bezierPath();
   NSPoint center = new NSPoint();
   float sAngle = -startAngle;
   float eAngle = -(startAngle + arcAngle);
   path.appendBezierPathWithArcWithCenter_radius_startAngle_endAngle_clockwise_(
       center, 1, sAngle, eAngle, arcAngle > 0);
   path.transformUsingAffineTransform(transform);
   handle.appendBezierPath(path);
 }
Exemple #5
0
 public Path(Device device, Path path, float flatness) {
   super(device);
   if (path == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
   if (path.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
   flatness = Math.max(0, flatness);
   if (flatness == 0) {
     handle = new NSBezierPath(path.handle.copy().id);
   } else {
     float defaultFlatness = NSBezierPath.defaultFlatness();
     NSBezierPath.setDefaultFlatness(flatness);
     handle = path.handle.bezierPathByFlatteningPath();
     NSBezierPath.setDefaultFlatness(defaultFlatness);
   }
   if (handle == null) SWT.error(SWT.ERROR_NO_HANDLES);
   init();
 }
Exemple #6
0
 /**
  * Sets the current point of the receiver to the point specified by (x, y). Note that this starts
  * a new sub path.
  *
  * @param x the x coordinate of the new end point
  * @param y the y coordinate of the new end point
  * @exception SWTException
  *     <ul>
  *       <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed
  *     </ul>
  */
 public void moveTo(float x, float y) {
   if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
   NSPoint pt = new NSPoint();
   pt.x = x;
   pt.y = y;
   handle.moveToPoint(pt);
 }
Exemple #7
0
 /**
  * Replaces the first two elements in the parameter with values that describe the current point of
  * the path.
  *
  * @param point the array to hold the result
  * @exception IllegalArgumentException
  *     <ul>
  *       <li>ERROR_NULL_ARGUMENT - if the parameter is null
  *       <li>ERROR_INVALID_ARGUMENT - if the parameter is too small to hold the end point
  *     </ul>
  *
  * @exception SWTException
  *     <ul>
  *       <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed
  *     </ul>
  */
 public void getCurrentPoint(float[] point) {
   if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
   if (point == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
   if (point.length < 2) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
   NSPoint pt = handle.currentPoint();
   point[0] = pt.x;
   point[1] = pt.y;
 }
Exemple #8
0
 /**
  * Adds to the receiver the rectangle specified by x, y, width and height.
  *
  * @param x the x coordinate of the rectangle to add
  * @param y the y coordinate of the rectangle to add
  * @param width the width of the rectangle to add
  * @param height the height of the rectangle to add
  * @exception SWTException
  *     <ul>
  *       <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed
  *     </ul>
  */
 public void addRectangle(float x, float y, float width, float height) {
   if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
   NSRect rect = new NSRect();
   rect.x = x;
   rect.y = y;
   rect.width = width;
   rect.height = height;
   handle.appendBezierPathWithRect(rect);
 }
Exemple #9
0
 /**
  * Adds to the receiver a quadratic curve based on the parameters.
  *
  * @param cx the x coordinate of the control point of the spline
  * @param cy the y coordinate of the control point of the spline
  * @param x the x coordinate of the end point of the spline
  * @param y the y coordinate of the end point of the spline
  * @exception SWTException
  *     <ul>
  *       <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed
  *     </ul>
  */
 public void quadTo(float cx, float cy, float x, float y) {
   if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
   NSPoint pt = new NSPoint();
   pt.x = x;
   pt.y = y;
   NSPoint ct = new NSPoint();
   ct.x = cx;
   ct.y = cy;
   handle.curveToPoint(pt, ct, ct);
 }
Exemple #10
0
 /**
  * Replaces the first four elements in the parameter with values that describe the smallest
  * rectangle that will completely contain the receiver (i.e. the bounding box).
  *
  * @param bounds the array to hold the result
  * @exception IllegalArgumentException
  *     <ul>
  *       <li>ERROR_NULL_ARGUMENT - if the parameter is null
  *       <li>ERROR_INVALID_ARGUMENT - if the parameter is too small to hold the bounding box
  *     </ul>
  *
  * @exception SWTException
  *     <ul>
  *       <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed
  *     </ul>
  */
 public void getBounds(float[] bounds) {
   if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
   if (bounds == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
   if (bounds.length < 4) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
   NSRect rect = handle.controlPointBounds();
   bounds[0] = rect.x;
   bounds[1] = rect.y;
   bounds[2] = rect.width;
   bounds[3] = rect.height;
 }
Exemple #11
0
 /**
  * Returns <code>true</code> if the specified point is contained by the receiver and false
  * otherwise.
  *
  * <p>If outline is <code>true</code>, the point (x, y) checked for containment in the receiver's
  * outline. If outline is <code>false</code>, the point is checked to see if it is contained
  * within the bounds of the (closed) area covered by the receiver.
  *
  * @param x the x coordinate of the point to test for containment
  * @param y the y coordinate of the point to test for containment
  * @param gc the GC to use when testing for containment
  * @param outline controls whether to check the outline or contained area of the path
  * @return <code>true</code> if the path contains the point and <code>false</code> otherwise
  * @exception IllegalArgumentException
  *     <ul>
  *       <li>ERROR_NULL_ARGUMENT - if the gc is null
  *       <li>ERROR_INVALID_ARGUMENT - if the gc has been disposed
  *     </ul>
  *
  * @exception SWTException
  *     <ul>
  *       <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed
  *     </ul>
  */
 public boolean contains(float x, float y, GC gc, boolean outline) {
   if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
   if (gc == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
   if (gc.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
   //	gc.checkGC(GC.LINE_CAP | GC.LINE_JOIN | GC.LINE_STYLE | GC.LINE_WIDTH);
   // TODO outline
   NSPoint point = new NSPoint();
   point.x = x;
   point.y = y;
   return handle.containsPoint(point);
 }
  void drawRectangles(NSWindow window, Rectangle[] rects, boolean erase) {
    NSGraphicsContext context = window.graphicsContext();
    NSGraphicsContext.static_saveGraphicsState();
    NSGraphicsContext.setCurrentContext(context);
    context.saveGraphicsState();
    Point parentOrigin;
    if (parent != null) {
      parentOrigin = display.map(parent, null, 0, 0);
    } else {
      parentOrigin = new Point(0, 0);
    }
    context.setCompositingOperation(erase ? OS.NSCompositeClear : OS.NSCompositeSourceOver);
    NSRect rectFrame = new NSRect();
    NSPoint globalPoint = new NSPoint();
    double /*float*/ screenHeight = display.getPrimaryFrame().height;
    for (int i = 0; i < rects.length; i++) {
      Rectangle rect = rects[i];
      rectFrame.x = rect.x + parentOrigin.x;
      rectFrame.y = screenHeight - (int) ((rect.y + parentOrigin.y) + rect.height);
      rectFrame.width = rect.width;
      rectFrame.height = rect.height;
      globalPoint.x = rectFrame.x;
      globalPoint.y = rectFrame.y;
      globalPoint = window.convertScreenToBase(globalPoint);
      rectFrame.x = globalPoint.x;
      rectFrame.y = globalPoint.y;

      if (erase) {
        rectFrame.width++;
        rectFrame.height++;
        NSBezierPath.fillRect(rectFrame);
      } else {
        rectFrame.x += 0.5f;
        rectFrame.y += 0.5f;
        NSBezierPath.strokeRect(rectFrame);
      }
    }
    if (!erase) context.flushGraphics();
    context.restoreGraphicsState();
    NSGraphicsContext.static_restoreGraphicsState();
  }
Exemple #13
0
 /**
  * Adds to the receiver a cubic bezier curve based on the parameters.
  *
  * @param cx1 the x coordinate of the first control point of the spline
  * @param cy1 the y coordinate of the first control of the spline
  * @param cx2 the x coordinate of the second control of the spline
  * @param cy2 the y coordinate of the second control of the spline
  * @param x the x coordinate of the end point of the spline
  * @param y the y coordinate of the end point of the spline
  * @exception SWTException
  *     <ul>
  *       <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed
  *     </ul>
  */
 public void cubicTo(float cx1, float cy1, float cx2, float cy2, float x, float y) {
   if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
   NSPoint pt = new NSPoint();
   pt.x = x;
   pt.y = y;
   NSPoint ct1 = new NSPoint();
   ct1.x = cx1;
   ct1.y = cy1;
   NSPoint ct2 = new NSPoint();
   ct2.x = cx2;
   ct2.y = cy2;
   handle.curveToPoint(pt, ct1, ct2);
 }
Exemple #14
0
 /**
  * Adds to the receiver the pattern of glyphs generated by drawing the given string using the
  * given font starting at the point (x, y).
  *
  * @param string the text to use
  * @param x the x coordinate of the starting point
  * @param y the y coordinate of the starting point
  * @param font the font to use
  * @exception IllegalArgumentException
  *     <ul>
  *       <li>ERROR_NULL_ARGUMENT - if the font is null
  *       <li>ERROR_INVALID_ARGUMENT - if the font has been disposed
  *     </ul>
  *
  * @exception SWTException
  *     <ul>
  *       <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed
  *     </ul>
  */
 public void addString(String string, float x, float y, Font font) {
   if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
   if (font == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
   if (font.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
   NSString str = NSString.stringWith(string);
   NSTextStorage textStorage = ((NSTextStorage) new NSTextStorage().alloc());
   textStorage.initWithString_(str);
   NSLayoutManager layoutManager = (NSLayoutManager) new NSLayoutManager().alloc().init();
   NSTextContainer textContainer = (NSTextContainer) new NSTextContainer().alloc();
   NSSize size = new NSSize();
   size.width = Float.MAX_VALUE;
   size.height = Float.MAX_VALUE;
   textContainer.initWithContainerSize(size);
   textStorage.addLayoutManager(layoutManager);
   layoutManager.addTextContainer(textContainer);
   NSRange range = new NSRange();
   range.length = str.length();
   textStorage.beginEditing();
   textStorage.addAttribute(OS.NSFontAttributeName(), font.handle, range);
   textStorage.endEditing();
   range = layoutManager.glyphRangeForTextContainer(textContainer);
   if (range.length != 0) {
     int glyphs = OS.malloc(4 * range.length * 2);
     layoutManager.getGlyphs(glyphs, range);
     NSBezierPath path = NSBezierPath.bezierPath();
     NSPoint point = new NSPoint();
     point.x = x;
     point.y = y;
     path.moveToPoint(point);
     path.appendBezierPathWithGlyphs(glyphs, range.length, font.handle);
     NSAffineTransform transform = NSAffineTransform.transform();
     transform.scaleXBy(1, -1);
     transform.translateXBy(0, -((2 * y) + textStorage.size().height));
     path.transformUsingAffineTransform(transform);
     OS.free(glyphs);
     handle.appendBezierPath(path);
   }
   textContainer.release();
   layoutManager.release();
   textStorage.release();
 }
Exemple #15
0
 /**
  * Adds to the receiver the path described by the parameter.
  *
  * @param path the path to add to the receiver
  * @exception IllegalArgumentException
  *     <ul>
  *       <li>ERROR_NULL_ARGUMENT - if the parameter is null
  *       <li>ERROR_INVALID_ARGUMENT - if the parameter has been disposed
  *     </ul>
  *
  * @exception SWTException
  *     <ul>
  *       <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed
  *     </ul>
  */
 public void addPath(Path path) {
   if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
   if (path == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
   if (path.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
   handle.appendBezierPath(path.handle);
 }
Exemple #16
0
  /**
   * Displays the Tracker rectangles for manipulation by the user. Returns when the user has either
   * finished manipulating the rectangles or has cancelled the Tracker.
   *
   * @return <code>true</code> if the user did not cancel the Tracker, <code>false</code> otherwise
   * @exception SWTException
   *     <ul>
   *       <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed
   *       <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
   *     </ul>
   */
  public boolean open() {
    checkWidget();
    cancelled = false;
    tracking = true;
    window = (NSWindow) new NSWindow().alloc();
    NSRect frame = NSScreen.mainScreen().frame();
    window =
        window.initWithContentRect_styleMask_backing_defer_(
            frame, OS.NSBorderlessWindowMask, OS.NSBackingStoreBuffered, false);
    window.setOpaque(false);
    window.setContentView(null);
    NSGraphicsContext context = window.graphicsContext();
    NSGraphicsContext.setCurrentContext(context);
    context.setCompositingOperation(OS.NSCompositeClear);
    NSBezierPath.fillRect(frame);
    window.orderFrontRegardless();

    drawRectangles(window, rectangles, false);

    /*
     * If exactly one of UP/DOWN is specified as a style then set the cursor
     * orientation accordingly (the same is done for LEFT/RIGHT styles below).
     */
    int vStyle = style & (SWT.UP | SWT.DOWN);
    if (vStyle == SWT.UP || vStyle == SWT.DOWN) {
      cursorOrientation |= vStyle;
    }
    int hStyle = style & (SWT.LEFT | SWT.RIGHT);
    if (hStyle == SWT.LEFT || hStyle == SWT.RIGHT) {
      cursorOrientation |= hStyle;
    }

    Point cursorPos;
    boolean down = false;
    NSApplication application = NSApplication.sharedApplication();
    NSEvent currentEvent = application.currentEvent();
    switch (currentEvent.type()) {
      case OS.NSLeftMouseDown:
      case OS.NSRightMouseDown:
      case OS.NSOtherMouseDown:
        down = true;
    }
    if (down) {
      cursorPos = display.getCursorLocation();
    } else {
      if ((style & SWT.RESIZE) != 0) {
        cursorPos = adjustResizeCursor(true);
      } else {
        cursorPos = adjustMoveCursor();
      }
    }
    if (cursorPos != null) {
      oldX = cursorPos.x;
      oldY = cursorPos.y;
    }

    /* Tracker behaves like a Dialog with its own OS event loop. */
    while (tracking && !cancelled) {
      NSAutoreleasePool pool = (NSAutoreleasePool) new NSAutoreleasePool().alloc().init();
      NSEvent event =
          application.nextEventMatchingMask(
              0, NSDate.distantFuture(), OS.NSDefaultRunLoopMode, true);
      if (event == null) continue;
      int type = event.type();
      switch (type) {
        case OS.NSLeftMouseUp:
        case OS.NSRightMouseUp:
        case OS.NSOtherMouseUp:
        case OS.NSMouseMoved:
        case OS.NSLeftMouseDragged:
        case OS.NSRightMouseDragged:
        case OS.NSOtherMouseDragged:
          mouse(event);
          break;
        case OS.NSKeyDown:
          //			case OS.NSKeyUp:
        case OS.NSFlagsChanged:
          key(event);
          break;
      }
      /*
       * Don't dispatch mouse and key events in general, EXCEPT once this
       * tracker has finished its work.
       */
      boolean dispatch = true;
      if (!(tracking && !cancelled)) {
        switch (type) {
          case OS.NSLeftMouseDown:
          case OS.NSLeftMouseUp:
          case OS.NSRightMouseDown:
          case OS.NSRightMouseUp:
          case OS.NSOtherMouseDown:
          case OS.NSOtherMouseUp:
          case OS.NSMouseMoved:
          case OS.NSLeftMouseDragged:
          case OS.NSRightMouseDragged:
          case OS.NSOtherMouseDragged:
          case OS.NSMouseEntered:
          case OS.NSMouseExited:
          case OS.NSKeyDown:
          case OS.NSKeyUp:
          case OS.NSFlagsChanged:
            dispatch = false;
        }
      }
      if (dispatch) application.sendEvent(event);
      if (clientCursor != null && resizeCursor == null) {
        clientCursor.handle.set();
      }
      pool.release();
    }
    if (!isDisposed()) {
      drawRectangles(window, rectangles, true);
    }
    if (window != null) window.close();
    tracking = false;
    window = null;
    return !cancelled;
  }
Exemple #17
0
 /**
  * Closes the current sub path by adding to the receiver a line from the current point of the path
  * back to the starting point of the sub path.
  *
  * @exception SWTException
  *     <ul>
  *       <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed
  *     </ul>
  */
 public void close() {
   if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
   handle.closePath();
 }
  /**
   * Displays the Tracker rectangles for manipulation by the user. Returns when the user has either
   * finished manipulating the rectangles or has cancelled the Tracker.
   *
   * @return <code>true</code> if the user did not cancel the Tracker, <code>false</code> otherwise
   * @exception SWTException
   *     <ul>
   *       <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed
   *       <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
   *     </ul>
   */
  public boolean open() {
    checkWidget();
    Display display = this.display;
    cancelled = false;
    tracking = true;
    window = (NSWindow) new NSWindow().alloc();
    NSArray screens = NSScreen.screens();
    double /*float*/ minX = Float.MAX_VALUE, maxX = Float.MIN_VALUE;
    double /*float*/ minY = Float.MAX_VALUE, maxY = Float.MIN_VALUE;
    int count = (int) /*64*/ screens.count();
    for (int i = 0; i < count; i++) {
      NSScreen screen = new NSScreen(screens.objectAtIndex(i));
      NSRect frame = screen.frame();
      double /*float*/ x1 = frame.x, x2 = frame.x + frame.width;
      double /*float*/ y1 = frame.y, y2 = frame.y + frame.height;
      if (x1 < minX) minX = x1;
      if (x2 < minX) minX = x2;
      if (x1 > maxX) maxX = x1;
      if (x2 > maxX) maxX = x2;
      if (y1 < minY) minY = y1;
      if (y2 < minY) minY = y2;
      if (y1 > maxY) maxY = y1;
      if (y2 > maxY) maxY = y2;
    }
    NSRect frame = new NSRect();
    frame.x = minX;
    frame.y = minY;
    frame.width = maxX - minX;
    frame.height = maxY - minY;
    window =
        window.initWithContentRect(
            frame, OS.NSBorderlessWindowMask, OS.NSBackingStoreBuffered, false);
    window.setOpaque(false);
    window.setLevel(OS.NSStatusWindowLevel);
    window.setContentView(null);
    window.setBackgroundColor(NSColor.clearColor());
    NSGraphicsContext context = window.graphicsContext();
    NSGraphicsContext.static_saveGraphicsState();
    NSGraphicsContext.setCurrentContext(context);
    context.setCompositingOperation(OS.NSCompositeClear);
    frame.x = frame.y = 0;
    NSBezierPath.fillRect(frame);
    NSGraphicsContext.static_restoreGraphicsState();
    window.orderFrontRegardless();

    drawRectangles(window, rectangles, false);

    /*
     * If exactly one of UP/DOWN is specified as a style then set the cursor
     * orientation accordingly (the same is done for LEFT/RIGHT styles below).
     */
    int vStyle = style & (SWT.UP | SWT.DOWN);
    if (vStyle == SWT.UP || vStyle == SWT.DOWN) {
      cursorOrientation |= vStyle;
    }
    int hStyle = style & (SWT.LEFT | SWT.RIGHT);
    if (hStyle == SWT.LEFT || hStyle == SWT.RIGHT) {
      cursorOrientation |= hStyle;
    }

    Point cursorPos;
    boolean down = false;
    NSApplication application = NSApplication.sharedApplication();
    NSEvent currentEvent = application.currentEvent();
    if (currentEvent != null) {
      switch ((int) /*64*/ currentEvent.type()) {
        case OS.NSLeftMouseDown:
        case OS.NSLeftMouseDragged:
        case OS.NSRightMouseDown:
        case OS.NSRightMouseDragged:
        case OS.NSOtherMouseDown:
        case OS.NSOtherMouseDragged:
          down = true;
      }
    }
    if (down) {
      cursorPos = display.getCursorLocation();
    } else {
      if ((style & SWT.RESIZE) != 0) {
        cursorPos = adjustResizeCursor(true);
      } else {
        cursorPos = adjustMoveCursor();
      }
    }
    if (cursorPos != null) {
      oldX = cursorPos.x;
      oldY = cursorPos.y;
    }

    Control oldTrackingControl = display.trackingControl;
    display.trackingControl = null;
    /* Tracker behaves like a Dialog with its own OS event loop. */
    while (tracking && !cancelled) {
      display.addPool();
      try {
        if (parent != null && parent.isDisposed()) break;
        display.runSkin();
        display.runDeferredLayouts();
        NSEvent event =
            application.nextEventMatchingMask(
                0, NSDate.distantFuture(), OS.NSDefaultRunLoopMode, true);
        if (event == null) continue;
        int type = (int) /*64*/ event.type();
        switch (type) {
          case OS.NSLeftMouseUp:
          case OS.NSRightMouseUp:
          case OS.NSOtherMouseUp:
          case OS.NSMouseMoved:
          case OS.NSLeftMouseDragged:
          case OS.NSRightMouseDragged:
          case OS.NSOtherMouseDragged:
            mouse(event);
            break;
          case OS.NSKeyDown:
          case OS.NSKeyUp:
          case OS.NSFlagsChanged:
            key(event);
            break;
        }
        boolean dispatch = true;
        switch (type) {
          case OS.NSLeftMouseDown:
          case OS.NSLeftMouseUp:
          case OS.NSRightMouseDown:
          case OS.NSRightMouseUp:
          case OS.NSOtherMouseDown:
          case OS.NSOtherMouseUp:
          case OS.NSMouseMoved:
          case OS.NSLeftMouseDragged:
          case OS.NSRightMouseDragged:
          case OS.NSOtherMouseDragged:
          case OS.NSMouseEntered:
          case OS.NSMouseExited:
          case OS.NSKeyDown:
          case OS.NSKeyUp:
          case OS.NSFlagsChanged:
            dispatch = false;
        }
        if (dispatch) application.sendEvent(event);
        if (clientCursor != null && resizeCursor == null) {
          display.lockCursor = false;
          clientCursor.handle.set();
          display.lockCursor = true;
        }
        display.runAsyncMessages(false);
      } finally {
        display.removePool();
      }
    }

    /*
     * Cleanup: If this tracker was resizing then the last cursor that it created
     * needs to be destroyed.
     */
    if (resizeCursor != null) resizeCursor.dispose();
    resizeCursor = null;

    if (oldTrackingControl != null && !oldTrackingControl.isDisposed()) {
      display.trackingControl = oldTrackingControl;
    }
    display.setCursor(display.findControl(true));
    if (!isDisposed()) {
      drawRectangles(window, rectangles, true);
    }
    if (window != null) window.close();
    tracking = false;
    window = null;
    return !cancelled;
  }
Exemple #19
0
 void destroy() {
   handle.release();
   handle = null;
 }