| package org.eclipse.swt.graphics; |
| |
| /* |
| * Copyright (c) 2000, 2002 IBM Corp. All rights reserved. |
| * This file is made available under the terms of the Common Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v10.html |
| */ |
| |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.internal.carbon.OS; |
| import org.eclipse.swt.internal.carbon.Rect; |
| import org.eclipse.swt.widgets.MacUtil; |
| |
| /** |
| * Class <code>GC</code> is where all of the drawing capabilities that are |
| * supported by SWT are located. Instances are used to draw on either an |
| * <code>Image</code>, a <code>Control</code>, or directly on a <code>Display</code>. |
| * <p> |
| * Application code must explicitly invoke the <code>GC.dispose()</code> |
| * method to release the operating system resources managed by each instance |
| * when those instances are no longer required. This is <em>particularly</em> |
| * important on Windows95 and Windows98 where the operating system has a limited |
| * number of device contexts available. |
| * </p> |
| * |
| * @see org.eclipse.swt.events.PaintEvent |
| */ |
| public final class GC { |
| /** |
| * the handle to the OS device context |
| * (Warning: This field is platform dependent) |
| */ |
| public int handle; // a Mac CGrafPort |
| |
| Drawable drawable; |
| GCData data; |
| |
| GC() { |
| } |
| /** |
| * Constructs a new instance of this class which has been |
| * configured to draw on the specified drawable. Sets the |
| * foreground and background color in the GC to match those |
| * in the drawable. |
| * <p> |
| * You must dispose the graphics context when it is no longer required. |
| * </p> |
| * @param drawable the drawable to draw on |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the drawable is null</li> |
| * <li>ERROR_NULL_ARGUMENT - if there is no current device</li> |
| * <li>ERROR_INVALID_ARGUMENT |
| * - if the drawable is an image that is not a bitmap or an icon |
| * - if the drawable is an image or printer that is already selected |
| * into another graphics context</li> |
| * </ul> |
| * @exception SWTError <ul> |
| * <li>ERROR_NO_HANDLES if a handle could not be obtained for gc creation</li> |
| * </ul> |
| */ |
| public GC (Drawable drawable) { |
| if (drawable == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); |
| GCData data = new GCData(); |
| int port = drawable.internal_new_GC(data); |
| init(drawable, data, port); |
| } |
| |
| /** |
| * Copies a rectangular area of the receiver at the source |
| * position onto the receiver at the destination position. |
| * |
| * @param srcX the x coordinate in the receiver of the area to be copied |
| * @param srcY the y coordinate in the receiver of the area to be copied |
| * @param width the width of the area to copy |
| * @param height the height of the area to copy |
| * @param destX the x coordinate in the receiver of the area to copy to |
| * @param destY the y coordinate in the receiver of the area to copy to |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public void copyArea(int x, int y, int width, int height, int destX, int destY) { |
| if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| if (width <= 0 || height <= 0) return; |
| int deltaX = destX - x, deltaY = destY - y; |
| if (deltaX == 0 && deltaY == 0) return; |
| |
| Rectangle src= new Rectangle(x, y, width, height); |
| src= src.union(new Rectangle(destX, destY, width, height)); |
| |
| Rect r= new Rect(); |
| r.left= (short)src.x; r.top= (short)src.y; |
| r.right= (short)(src.x + src.width); r.bottom= (short)(src.y + src.height); |
| |
| try { |
| if (focus(true, null)) { |
| int rgn= OS.NewRgn(); |
| OS.ScrollRect(r, (short)deltaX, (short)deltaY, rgn); |
| if (data.controlHandle != 0) |
| OS.HIViewSetNeedsDisplayInRegion(data.controlHandle, rgn, true); |
| OS.DisposeRgn(rgn); |
| } |
| } finally { |
| unfocus(true); |
| } |
| } |
| /** |
| * Copies a rectangular area of the receiver at the specified |
| * position into the image, which must be of type <code>SWT.BITMAP</code>. |
| * |
| * @param x the x coordinate in the receiver of the area to be copied |
| * @param y the y coordinate in the receiver of the area to be copied |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the image is null</li> |
| * <li>ERROR_INVALID_ARGUMENT - if the image is not a bitmap or has been disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public void copyArea(Image image, int x, int y) { |
| if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| if (image == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); |
| if (image.type != SWT.BITMAP || image.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT); |
| /* AW |
| Rectangle rect = image.getBounds(); |
| int xDisplay = data.display; |
| int xGC = OS.XCreateGC(xDisplay, image.pixmap, 0, null); |
| if (xGC == 0) SWT.error(SWT.ERROR_NO_HANDLES); |
| OS.XSetSubwindowMode (xDisplay, xGC, OS.IncludeInferiors); |
| OS.XCopyArea(xDisplay, data.drawable, image.pixmap, xGC, x, y, rect.width, rect.height, 0, 0); |
| OS.XFreeGC(xDisplay, xGC); |
| */ |
| System.out.println("GC.copyArea(Image): nyi"); |
| } |
| /** |
| * Disposes of the operating system resources associated with |
| * the graphics context. Applications must dispose of all GCs |
| * which they allocate. |
| */ |
| public void dispose () { |
| if (handle == 0) return; |
| if (data.device.isDisposed()) return; |
| |
| /* Free resources */ |
| int clipRgn = data.clipRgn; |
| if (clipRgn != 0) OS.DisposeRgn(clipRgn); |
| |
| Image image = data.image; |
| if (image != null) image.memGC = null; |
| |
| /* Dispose the GC */ |
| drawable.internal_dispose_GC(handle, data); |
| |
| data.clipRgn = 0; |
| data.font = null; |
| drawable = null; |
| data.device = null; |
| data.image = null; |
| data = null; |
| handle = 0; |
| } |
| /** |
| * Draws the outline of a circular or elliptical arc |
| * within the specified rectangular area. |
| * <p> |
| * The resulting arc begins at <code>startAngle</code> and extends |
| * for <code>arcAngle</code> degrees, using the current color. |
| * 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><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><p> |
| * The resulting arc covers an area <code>width + 1</code> pixels wide |
| * by <code>height + 1</code> pixels tall. |
| * </p> |
| * |
| * @param x the x coordinate of the upper-left corner of the arc to be drawn |
| * @param y the y coordinate of the upper-left corner of the arc to be drawn |
| * @param width the width of the arc to be drawn |
| * @param height the height of the arc to be drawn |
| * @param startAngle the beginning angle |
| * @param arcAngle the angular extent of the arc, relative to the start angle |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if any of the width, height or endAngle is zero.</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public void drawArc(int x, int y, int width, int height, int startAngle, int endAngle) { |
| if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| if (width < 0) { |
| x = x + width; |
| width = -width; |
| } |
| if (height < 0) { |
| y = y + height; |
| height = -height; |
| } |
| if (width == 0 || height == 0 || endAngle == 0) { |
| SWT.error(SWT.ERROR_INVALID_ARGUMENT); |
| } |
| /* AW |
| OS.XDrawArc(data.display,data.drawable,handle,x,y,width,height,startAngle * 64 ,endAngle * 64); |
| */ |
| System.out.println("GC.drawArc"); |
| } |
| /** |
| * Draws a rectangle, based on the specified arguments, which has |
| * the appearance of the platform's <em>focus rectangle</em> if the |
| * platform supports such a notion, and otherwise draws a simple |
| * rectangle in the receiver's foreground color. |
| * |
| * @param x the x coordinate of the rectangle |
| * @param y the y coordinate of the rectangle |
| * @param width the width of the rectangle |
| * @param height the height of the rectangle |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see #drawRectangle |
| */ |
| public void drawFocus (int x, int y, int width, int height) { |
| if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| /* |
| * When the drawable is not a widget, the highlight |
| * color is zero. |
| */ |
| /* AW |
| int highlightColor = 0; |
| int widget = OS.XtWindowToWidget (xDisplay, xDrawable); |
| if (widget != 0) { |
| int [] argList = {OS.XmNhighlightColor, 0}; |
| OS.XtGetValues (widget, argList, argList.length / 2); |
| highlightColor = argList [1]; |
| } |
| */ |
| |
| /* Draw the focus rectangle */ |
| if (width < 0) { |
| x = x + width; |
| width = -width; |
| } |
| if (height < 0) { |
| y = y + height; |
| height = -height; |
| } |
| /* AW |
| XGCValues values = new XGCValues (); |
| OS.XGetGCValues (xDisplay, handle, OS.GCForeground, values); |
| OS.XSetForeground (xDisplay, handle, highlightColor); |
| OS.XDrawRectangle (xDisplay, xDrawable, handle, x, y, width - 1, height - 1); |
| OS.XSetForeground (xDisplay, handle, values.foreground); |
| */ |
| //System.out.println("GC.drawFocus"); |
| } |
| /** |
| * Draws the given image in the receiver at the specified |
| * coordinates. |
| * |
| * @param image the image to draw |
| * @param x the x coordinate of where to draw |
| * @param y the y coordinate of where to draw |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the image is null</li> |
| * <li>ERROR_INVALID_ARGUMENT - if the image has been disposed</li> |
| * <li>ERROR_INVALID_ARGUMENT - if the given coordinates are outside the bounds of the image</li> |
| * @exception SWTError <ul> |
| * <li>ERROR_NO_HANDLES - if no handles are available to perform the operation</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public void drawImage(Image image, int x, int y) { |
| if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| if (image == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); |
| if (image.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT); |
| drawImage(image, 0, 0, -1, -1, x, y, -1, -1, true); |
| } |
| /** |
| * Copies a rectangular area from the source image into a (potentially |
| * different sized) rectangular area in the receiver. If the source |
| * and destination areas are of differing sizes, then the source |
| * area will be stretched or shrunk to fit the destination area |
| * as it is copied. The copy fails if any part of the source rectangle |
| * lies outside the bounds of the source image, or if any of the width |
| * or height arguments are negative. |
| * |
| * @param image the source image |
| * @param srcX the x coordinate in the source image to copy from |
| * @param srcY the y coordinate in the source image to copy from |
| * @param srcWidth the width in pixels to copy from the source |
| * @param srcHeight the height in pixels to copy from the source |
| * @param destX the x coordinate in the destination to copy to |
| * @param destY the y coordinate in the destination to copy to |
| * @param destWidth the width in pixels of the destination rectangle |
| * @param destHeight the height in pixels of the destination rectangle |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the image is null</li> |
| * <li>ERROR_INVALID_ARGUMENT - if the image has been disposed</li> |
| * <li>ERROR_INVALID_ARGUMENT - if any of the width or height arguments are negative. |
| * <li>ERROR_INVALID_ARGUMENT - if the source rectangle is not contained within the bounds of the source image</li> |
| * </ul> |
| * @exception SWTError <ul> |
| * <li>ERROR_NO_HANDLES - if no handles are available to perform the operation</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public void drawImage(Image image, int srcX, int srcY, int srcWidth, int srcHeight, int destX, int destY, int destWidth, int destHeight) { |
| if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| if (srcWidth == 0 || srcHeight == 0 || destWidth == 0 || destHeight == 0) return; |
| if (srcX < 0 || srcY < 0 || srcWidth < 0 || srcHeight < 0 || destWidth < 0 || destHeight < 0) { |
| SWT.error (SWT.ERROR_INVALID_ARGUMENT); |
| } |
| if (image == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); |
| if (image.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT); |
| drawImage(image, srcX, srcY, srcWidth, srcHeight, destX, destY, destWidth, destHeight, false); |
| } |
| void drawImage(Image srcImage, int srcX, int srcY, int srcWidth, int srcHeight, int destX, int destY, int destWidth, int destHeight, boolean simple) { |
| Rect bounds= new Rect(); |
| OS.GetPixBounds(srcImage.pixmap, bounds); |
| int imgWidth = bounds.right - bounds.left; |
| int imgHeight = bounds.bottom - bounds.top; |
| |
| if (simple) { |
| srcWidth = destWidth = imgWidth; |
| srcHeight = destHeight = imgHeight; |
| } else { |
| if (srcX + srcWidth > imgWidth || srcY + srcHeight > imgHeight) { |
| SWT.error(SWT.ERROR_INVALID_ARGUMENT); |
| } |
| } |
| |
| if (srcImage.alpha == 0) // fully transparent |
| return; |
| |
| if (srcImage.pixmap == 0) |
| return; |
| int srcBits= OS.DerefHandle(srcImage.pixmap); |
| if (srcBits == 0) |
| return; |
| int destBits= OS.GetPortBitMapForCopyBits(handle); |
| if (destBits == 0) |
| return; |
| |
| try { |
| if (focus(true, null)) { |
| |
| Rect ib= new Rect(); |
| ib.left= (short)srcX; ib.top= (short)srcY; |
| ib.right= (short)(srcX + srcWidth); ib.bottom= (short)(srcY + srcHeight); |
| |
| Rect rect= new Rect(); |
| rect.left= (short)destX; rect.top= (short)destY; |
| rect.right= (short)(destX + destWidth); rect.bottom= (short)(destY + destHeight); |
| |
| OS.RGBBackColor((short)0xFFFF, (short)0xFFFF, (short)0xFFFF); |
| OS.RGBForeColor((short)0x0000, (short)0x0000, (short)0x0000); |
| |
| if (srcImage.alpha != -1 || srcImage.alphaData != null) { |
| |
| if (srcImage.alpha == 255) { // fully opaque |
| OS.CopyBits(srcBits, destBits, ib, rect, (short)0, 0); |
| return; |
| } |
| |
| //OS.CopyDeepMask(srcBits, maskBits, destBits, ib.getData(), ib.getData(), fRect.getData(), (short)0, 0); |
| System.out.println("GC.drawImage: alpha drawing not nyi"); |
| |
| } else if (srcImage.transparentPixel != -1 || srcImage.mask != 0) { |
| /* Generate the mask if necessary. */ |
| if (srcImage.transparentPixel != -1) srcImage.createMask(); |
| |
| int maskBits= srcImage.mask != 0 ? OS.DerefHandle(srcImage.mask) : 0; |
| if (maskBits != 0) { |
| int rc= OS.CopyMask(srcBits, maskBits, destBits, ib, ib, rect); |
| if (rc != OS.noErr) |
| System.out.println("GC.drawImage: error in CopyMask: " + rc); |
| } |
| |
| /* Destroy the image mask if there is a GC created on the image */ |
| if (srcImage.transparentPixel != -1 && srcImage.memGC != null) srcImage.destroyMask(); |
| |
| } else { |
| OS.CopyBits(srcBits, destBits, ib, rect, (short)0, 0); |
| } |
| } |
| } finally { |
| unfocus(true); |
| } |
| } |
| /** |
| * Draws a line, using the foreground color, between the points |
| * (<code>x1</code>, <code>y1</code>) and (<code>x2</code>, <code>y2</code>). |
| * |
| * @param x1 the first point's x coordinate |
| * @param y1 the first point's y coordinate |
| * @param x2 the second point's x coordinate |
| * @param y2 the second point's y coordinate |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public void drawLine (int x1, int y1, int x2, int y2) { |
| if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| try { |
| if (focus(true, null)) { |
| MacUtil.RGBForeColor(data.foreground); |
| OS.PenSize((short) data.lineWidth, (short) data.lineWidth); |
| OS.MoveTo((short)x1, (short)y1); |
| OS.LineTo((short)x2, (short)y2); |
| } |
| } finally { |
| unfocus(true); |
| } |
| } |
| /** |
| * Draws the outline of an oval, using the foreground color, |
| * within the specified rectangular area. |
| * <p> |
| * The result is a circle or ellipse that fits within the |
| * rectangle specified by the <code>x</code>, <code>y</code>, |
| * <code>width</code>, and <code>height</code> arguments. |
| * </p><p> |
| * The oval covers an area that is <code>width + 1</code> |
| * pixels wide and <code>height + 1</code> pixels tall. |
| * </p> |
| * |
| * @param x the x coordinate of the upper left corner of the oval to be drawn |
| * @param y the y coordinate of the upper left corner of the oval to be drawn |
| * @param width the width of the oval to be drawn |
| * @param height the height of the oval to be drawn |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public void drawOval(int x, int y, int width, int height) { |
| if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| if (width < 0) { |
| x = x + width; |
| width = -width; |
| } |
| if (height < 0) { |
| y = y + height; |
| height = -height; |
| } |
| try { |
| if (focus(true, null)) { |
| MacUtil.RGBForeColor(data.foreground); |
| OS.PenSize((short) data.lineWidth, (short) data.lineWidth); |
| Rect rect= new Rect(); |
| rect.left= (short)x; rect.top= (short)y; |
| rect.right= (short)(x + width + 1); rect.bottom= (short)(y + height + 1); |
| OS.FrameOval(rect); |
| } |
| } finally { |
| unfocus(true); |
| } |
| } |
| /** |
| * Draws the closed polygon which is defined by the specified array |
| * of integer coordinates, using the receiver's foreground color. The array |
| * contains alternating x and y values which are considered to represent |
| * points which are the vertices of the polygon. Lines are drawn between |
| * each consecutive pair, and between the first pair and last pair in the |
| * array. |
| * |
| * @param pointArray an array of alternating x and y values which are the vertices of the polygon |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT if pointArray is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public void drawPolygon(int[] pointArray) { |
| if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| if (pointArray == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); |
| |
| // Motif does not have a native drawPolygon() call. Instead we ensure |
| // that the first and last points are the same and call drawPolyline(). |
| |
| int length = pointArray.length; |
| |
| // Need at least 3 points to define the polygon. If 2 or fewer points |
| // passed in, it is either a line or point so just call drawPolyline(). |
| // Check what happens when XOR is implemented. We may not be able to |
| // do this optimization. |
| |
| if (length < 4) { |
| drawPolyline(pointArray); |
| return; |
| } |
| |
| // If first and last points are the same, the polygon is already closed. |
| // Just call drawPolyline(). |
| // |
| // Check what happens when XOR is implemented. We may not be able to |
| // do this optimization. |
| |
| if (pointArray[0] == pointArray[length - 2] && (pointArray[1] == pointArray[length - 1])) { |
| drawPolyline(pointArray); |
| return; |
| } |
| |
| // Grow the list of points by one element and make sure the first and last |
| // points are the same. This will close the polygon and we can use the |
| // drawPolyline() call. |
| |
| int newPoints[] = new int[length + 2]; |
| for (int i = 0; i < length ; i++) |
| newPoints[i] = pointArray[i]; |
| newPoints[length] = pointArray[0]; |
| newPoints[length + 1] = pointArray[1]; |
| |
| drawPolyline(newPoints); |
| } |
| /** |
| * Draws the polyline which is defined by the specified array |
| * of integer coordinates, using the receiver's foreground color. The array |
| * contains alternating x and y values which are considered to represent |
| * points which are the corners of the polyline. Lines are drawn between |
| * each consecutive pair, but not between the first pair and last pair in |
| * the array. |
| * |
| * @param pointArray an array of alternating x and y values which are the corners of the polyline |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the point array is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public void drawPolyline(int[] pointArray) { |
| if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| if (pointArray == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); |
| /* AW |
| short[] xPoints = new short[pointArray.length]; |
| for (int i = 0; i<pointArray.length;i++) { |
| xPoints[i] = (short) pointArray[i]; |
| } |
| OS.XDrawLines(data.display,data.drawable,handle,xPoints,xPoints.length / 2, OS.CoordModeOrigin); |
| */ |
| |
| if (pointArray.length < 4) |
| return; |
| |
| int poly= 0; |
| try { |
| if (focus(true, null)) { |
| poly= OS.OpenPoly(); |
| OS.MoveTo((short)pointArray[0], (short)pointArray[1]); |
| for (int i= 2; i < pointArray.length; i+= 2) |
| OS.LineTo((short)pointArray[i], (short)pointArray[i+1]); |
| OS.ClosePoly(); |
| |
| MacUtil.RGBForeColor(data.foreground); |
| OS.PenSize((short) data.lineWidth, (short) data.lineWidth); |
| OS.FramePoly(poly); |
| } |
| } finally { |
| unfocus(true); |
| } |
| |
| if (poly != 0) |
| OS.KillPoly(poly); |
| } |
| /** |
| * Draws the outline of the rectangle specified by the arguments, |
| * using the receiver's foreground color. The left and right edges |
| * of the rectangle are at <code>x</code> and <code>x + width</code>. |
| * The top and bottom edges are at <code>y</code> and <code>y + height</code>. |
| * |
| * @param x the x coordinate of the rectangle to be drawn |
| * @param y the y coordinate of the rectangle to be drawn |
| * @param width the width of the rectangle to be drawn |
| * @param height the height of the rectangle to be drawn |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public void drawRectangle (int x, int y, int width, int height) { |
| if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| if (width < 0) { |
| x = x + width; |
| width = -width; |
| } |
| if (height < 0) { |
| y = y + height; |
| height = -height; |
| } |
| try { |
| if (focus(true, null)) { |
| MacUtil.RGBForeColor(data.foreground); |
| OS.PenSize((short) data.lineWidth, (short) data.lineWidth); |
| Rect rect= new Rect(); |
| rect.left= (short)x; rect.top= (short)y; |
| rect.right= (short)(x + width + 1); rect.bottom= (short)(y + height + 1); |
| OS.FrameRect(rect); |
| } |
| } finally { |
| unfocus(true); |
| } |
| } |
| /** |
| * Draws the outline of the specified rectangle, using the receiver's |
| * foreground color. The left and right edges of the rectangle are at |
| * <code>rect.x</code> and <code>rect.x + rect.width</code>. The top |
| * and bottom edges are at <code>rect.y</code> and |
| * <code>rect.y + rect.height</code>. |
| * |
| * @param rect the rectangle to draw |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the rectangle is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public void drawRectangle (Rectangle rect) { |
| if (rect == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); |
| drawRectangle (rect.x, rect.y, rect.width, rect.height); |
| } |
| /** |
| * Draws the outline of the round-cornered rectangle specified by |
| * the arguments, using the receiver's foreground color. The left and |
| * right edges of the rectangle are at <code>x</code> and <code>x + width</code>. |
| * The top and bottom edges are at <code>y</code> and <code>y + height</code>. |
| * The <em>roundness</em> of the corners is specified by the |
| * <code>arcWidth</code> and <code>arcHeight</code> arguments. |
| * |
| * @param x the x coordinate of the rectangle to be drawn |
| * @param y the y coordinate of the rectangle to be drawn |
| * @param width the width of the rectangle to be drawn |
| * @param height the height of the rectangle to be drawn |
| * @param arcWidth the horizontal diameter of the arc at the four corners |
| * @param arcHeight the vertical diameter of the arc at the four corners |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public void drawRoundRectangle (int x, int y, int width, int height, int arcWidth, int arcHeight) { |
| if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| if (width < 0) { |
| x = x + width; |
| width = -width; |
| } |
| if (height < 0) { |
| y = y + height; |
| height = -height; |
| } |
| try { |
| if (focus(true, null)) { |
| MacUtil.RGBForeColor(data.foreground); |
| OS.PenSize((short) data.lineWidth, (short) data.lineWidth); |
| Rect rect= new Rect(); |
| rect.left= (short)x; rect.top= (short)y; |
| rect.right= (short)(x + width + 1); rect.bottom= (short)(y + height + 1); |
| OS.FrameRoundRect(rect, (short)arcWidth, (short)arcHeight); |
| } |
| } finally { |
| unfocus(true); |
| } |
| } |
| /** |
| * Draws the given string, using the receiver's current font and |
| * foreground color. No tab expansion or carriage return processing |
| * will be performed. The background of the rectangular area where |
| * the string is being drawn will be filled with the receiver's |
| * background color. |
| * |
| * @param string the string to be drawn |
| * @param x the x coordinate of the top left corner of the rectangular area where the string is to be drawn |
| * @param y the y coordinate of the top left corner of the rectangular area where the string is to be drawn |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the string is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public void drawString (String string, int x, int y) { |
| drawString(string, x, y, false); |
| } |
| /** |
| * Draws the given string, using the receiver's current font and |
| * foreground color. No tab expansion or carriage return processing |
| * will be performed. If <code>isTransparent</code> is <code>true</code>, |
| * then the background of the rectangular area where the string is being |
| * drawn will not be modified, otherwise it will be filled with the |
| * receiver's background color. |
| * |
| * @param string the string to be drawn |
| * @param x the x coordinate of the top left corner of the rectangular area where the string is to be drawn |
| * @param y the y coordinate of the top left corner of the rectangular area where the string is to be drawn |
| * @param isTransparent if <code>true</code> the background will be transparent, otherwise it will be opaque |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the string is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public void drawString (String string, int x, int y, boolean isTransparent) { |
| if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| if (string == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); |
| /* AW |
| byte [] buffer = Converter.wcsToMbcs (getCodePage (), string, true); |
| int xmString = OS.XmStringCreate (buffer, OS.XmFONTLIST_DEFAULT_TAG); |
| if (isTransparent) { |
| OS.XmStringDraw (data.display, data.drawable, data.fontList, xmString, handle, x, y, 0x7FFFFFFF, OS.XmALIGNMENT_BEGINNING, 0, null); |
| } else { |
| OS.XmStringDrawImage (data.display, data.drawable, data.fontList, xmString, handle, x, y, 0x7FFFFFFF, OS.XmALIGNMENT_BEGINNING, 0, null); |
| } |
| // OS.XmStringDrawUnderline (display, drawable, fontList, xmString, handle, x, y, 0x7FFFFFFF, OS.XmALIGNMENT_BEGINNING, 0, null, 0); |
| OS.XmStringFree (xmString); |
| */ |
| try { |
| if (focus(true, null)) { |
| carbon_installFont(); |
| MacUtil.RGBForeColor(data.foreground); |
| if (isTransparent) { |
| OS.TextMode((short)OS.srcOr); |
| } else { |
| if ((data.background & 0xff000000) == 0) { |
| MacUtil.RGBBackColor(data.background); |
| OS.TextMode((short)OS.srcCopy); |
| } else { |
| //System.out.println("GC.drawString: " + Integer.toHexString(data.background)); |
| OS.TextMode((short)OS.srcOr); |
| } |
| } |
| short[] fontInfo= new short[4]; |
| OS.GetFontInfo(fontInfo); // FontInfo |
| OS.MoveTo((short)x, (short)(y+fontInfo[0])); |
| byte[] buffer = string.getBytes(); |
| OS.DrawText(buffer, (short)0, (short)buffer.length); |
| } |
| } finally { |
| unfocus(true); |
| } |
| } |
| /** |
| * Draws the given string, using the receiver's current font and |
| * foreground color. Tab expansion and carriage return processing |
| * are performed. The background of the rectangular area where |
| * the text is being drawn will be filled with the receiver's |
| * background color. |
| * |
| * @param string the string to be drawn |
| * @param x the x coordinate of the top left corner of the rectangular area where the text is to be drawn |
| * @param y the y coordinate of the top left corner of the rectangular area where the text is to be drawn |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the string is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public void drawText (String string, int x, int y) { |
| drawText(string, x, y, SWT.DRAW_DELIMITER | SWT.DRAW_TAB); |
| } |
| /** |
| * Draws the given string, using the receiver's current font and |
| * foreground color. Tab expansion and carriage return processing |
| * are performed. If <code>isTransparent</code> is <code>true</code>, |
| * then the background of the rectangular area where the text is being |
| * drawn will not be modified, otherwise it will be filled with the |
| * receiver's background color. |
| * |
| * @param string the string to be drawn |
| * @param x the x coordinate of the top left corner of the rectangular area where the text is to be drawn |
| * @param y the y coordinate of the top left corner of the rectangular area where the text is to be drawn |
| * @param isTransparent if <code>true</code> the background will be transparent, otherwise it will be opaque |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the string is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public void drawText (String string, int x, int y, boolean isTransparent) { |
| int flags = SWT.DRAW_DELIMITER | SWT.DRAW_TAB; |
| if (isTransparent) flags |= SWT.DRAW_TRANSPARENT; |
| drawText(string, x, y, flags); |
| } |
| /** |
| * Draws the given string, using the receiver's current font and |
| * foreground color. Tab expansion, line delimiter and mnemonic |
| * processing are performed according to the specified flags. If |
| * <code>flags</code> includes <code>DRAW_TRANSPARENT</code>, |
| * then the background of the rectangular area where the text is being |
| * drawn will not be modified, otherwise it will be filled with the |
| * receiver's background color. |
| * <p> |
| * The parameter <code>flags</code> may be a combination of: |
| * <dl> |
| * <dt><b>DRAW_DELIMITER</b></dt> |
| * <dd>draw multiple lines</dd> |
| * <dt><b>DRAW_TAB</b></dt> |
| * <dd>expand tabs</dd> |
| * <dt><b>DRAW_MNEMONIC</b></dt> |
| * <dd>underline the mnemonic character</dd> |
| * <dt><b>DRAW_TRANSPARENT</b></dt> |
| * <dd>transparent background</dd> |
| * </dl> |
| * </p> |
| * |
| * @param string the string to be drawn |
| * @param x the x coordinate of the top left corner of the rectangular area where the text is to be drawn |
| * @param y the y coordinate of the top left corner of the rectangular area where the text is to be drawn |
| * @param flags the flags specifing how to process the text |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the string is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public void drawText (String string, int x, int y, int flags) { |
| if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| if (string == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); |
| |
| /* AW |
| if (data.renderTable == 0) createRenderTable(); |
| int renderTable = data.renderTable; |
| |
| char mnemonic=0; |
| int tableLength = 0; |
| Device device = data.device; |
| int[] parseTable = new int[2]; |
| char[] text = new char[string.length()]; |
| string.getChars(0, text.length, text, 0); |
| if ((flags & SWT.DRAW_DELIMITER) != 0) parseTable[tableLength++] = device.crMapping; |
| if ((flags & SWT.DRAW_TAB) != 0) parseTable[tableLength++] = device.tabMapping; |
| if ((flags & SWT.DRAW_MNEMONIC) != 0) mnemonic = stripMnemonic(text); |
| |
| String codePage = getCodePage(); |
| byte[] buffer = Converter.wcsToMbcs(codePage, text, true); |
| int xmString = OS.XmStringParseText(buffer, 0, OS.XmFONTLIST_DEFAULT_TAG, OS.XmCHARSET_TEXT, parseTable, tableLength, 0); |
| if (mnemonic != 0) { |
| byte [] buffer1 = Converter.wcsToMbcs(codePage, new char[]{mnemonic}, true); |
| int xmStringUnderline = OS.XmStringCreate (buffer1, OS.XmFONTLIST_DEFAULT_TAG); |
| OS.XmStringDrawUnderline(data.display, data.drawable, renderTable, xmString, handle, x, y, 0x7FFFFFFF, OS.XmALIGNMENT_BEGINNING, 0, null, xmStringUnderline); |
| OS.XmStringFree(xmStringUnderline); |
| } else { |
| if ((flags & SWT.DRAW_TRANSPARENT) != 0) { |
| OS.XmStringDraw(data.display, data.drawable, renderTable, xmString, handle, x, y, 0x7FFFFFFF, OS.XmALIGNMENT_BEGINNING, 0, null); |
| } else { |
| OS.XmStringDrawImage(data.display, data.drawable, renderTable, xmString, handle, x, y, 0x7FFFFFFF, OS.XmALIGNMENT_BEGINNING, 0, null); |
| } |
| } |
| OS.XmStringFree(xmString); |
| */ |
| try { |
| if (focus(true, null)) { |
| carbon_installFont(); |
| MacUtil.RGBForeColor(data.foreground); |
| if ((flags & SWT.DRAW_TRANSPARENT) != 0) { |
| OS.TextMode((short)OS.srcOr); |
| } else { |
| if ((data.background & 0xff000000) == 0) { |
| MacUtil.RGBBackColor(data.background); |
| OS.TextMode((short)OS.srcCopy); |
| } else { |
| //System.out.println("GC.drawText: " + Integer.toHexString(data.background)); |
| OS.TextMode((short)OS.srcOr); |
| } |
| } |
| short[] fontInfo= new short[4]; |
| OS.GetFontInfo(fontInfo); // FontInfo |
| OS.MoveTo((short)x, (short)(y+fontInfo[0])); |
| byte[] buffer = string.getBytes(); |
| OS.DrawText(buffer, (short)0, (short)buffer.length); |
| } |
| } finally { |
| unfocus(true); |
| } |
| } |
| |
| /** |
| * Compares the argument to the receiver, and returns true |
| * if they represent the <em>same</em> object using a class |
| * specific comparison. |
| * |
| * @param object the object to compare with this object |
| * @return <code>true</code> if the object is the same as this object and <code>false</code> otherwise |
| * |
| * @see #hashCode |
| */ |
| public boolean equals (Object object) { |
| if (object == this) return true; |
| if (!(object instanceof GC)) return false; |
| return handle == ((GC)object).handle; |
| } |
| /** |
| * Fills the interior of a circular or elliptical arc within |
| * the specified rectangular area, with the receiver's background |
| * color. |
| * <p> |
| * The resulting arc begins at <code>startAngle</code> and extends |
| * for <code>arcAngle</code> degrees, using the current color. |
| * 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><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><p> |
| * The resulting arc covers an area <code>width + 1</code> pixels wide |
| * by <code>height + 1</code> pixels tall. |
| * </p> |
| * |
| * @param x the x coordinate of the upper-left corner of the arc to be filled |
| * @param y the y coordinate of the upper-left corner of the arc to be filled |
| * @param width the width of the arc to be filled |
| * @param height the height of the arc to be filled |
| * @param startAngle the beginning angle |
| * @param arcAngle the angular extent of the arc, relative to the start angle |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if any of the width, height or endAngle is zero.</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see #drawArc |
| */ |
| public void fillArc(int x, int y, int width, int height, int startAngle, int endAngle) { |
| if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| if (width < 0) { |
| x = x + width; |
| width = -width; |
| } |
| if (height < 0) { |
| y = y + height; |
| height = -height; |
| } |
| if (width == 0 || height == 0 || endAngle == 0) { |
| SWT.error(SWT.ERROR_INVALID_ARGUMENT); |
| } |
| /* AW |
| XGCValues values = new XGCValues (); |
| OS.XGetGCValues (xDisplay, handle, OS.GCForeground | OS.GCBackground, values); |
| OS.XSetForeground (xDisplay, handle, values.background); |
| OS.XFillArc(xDisplay,data.drawable,handle,x,y,width,height,startAngle * 64 ,endAngle * 64); |
| OS.XSetForeground (xDisplay, handle, values.foreground); |
| */ |
| System.out.println("GC.fillArc"); |
| } |
| |
| /** |
| * Fills the interior of the specified rectangle with a gradient |
| * sweeping from left to right or top to bottom progressing |
| * from the receiver's foreground color to its background color. |
| * |
| * @param x the x coordinate of the rectangle to be filled |
| * @param y the y coordinate of the rectangle to be filled |
| * @param width the width of the rectangle to be filled, may be negative |
| * (inverts direction of gradient if horizontal) |
| * @param height the height of the rectangle to be filled, may be negative |
| * (inverts direction of gradient if vertical) |
| * @param vertical if true sweeps from top to bottom, else |
| * sweeps from left to right |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see #drawRectangle |
| */ |
| public void fillGradientRectangle(int x, int y, int width, int height, boolean vertical) { |
| if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| if ((width == 0) || (height == 0)) return; |
| |
| try { |
| if (! focus(true, null)) |
| return; |
| |
| /* AW |
| int xDisplay = data.display; |
| int xScreenNum = OS.XDefaultScreen(xDisplay); |
| XGCValues values = new XGCValues(); |
| */ |
| int fromColor, toColor; |
| /* AW |
| OS.XGetGCValues(xDisplay, handle, OS.GCForeground | OS.GCBackground, values); |
| fromColor = values.foreground; |
| toColor = values.background; |
| */ |
| fromColor = data.foreground; |
| toColor = data.background; |
| |
| boolean swapColors = false; |
| if (width < 0) { |
| x += width; width = -width; |
| if (! vertical) swapColors = true; |
| } |
| if (height < 0) { |
| y += height; height = -height; |
| if (vertical) swapColors = true; |
| } |
| if (swapColors) { |
| final int t = fromColor; |
| fromColor = toColor; |
| toColor = t; |
| } |
| |
| if (fromColor == toColor) { |
| /* AW |
| OS.XFillRectangle(xDisplay, data.drawable, handle, x, y, width, height); |
| */ |
| MacUtil.RGBForeColor(data.foreground); |
| Rect rect= new Rect(); |
| rect.left= (short)x; rect.top= (short)y; |
| rect.right= (short)(x + width); rect.bottom= (short)(y + height); |
| OS.PaintRect(rect); |
| return; |
| } |
| /* X Window deals with a virtually limitless array of color formats |
| * but we only distinguish between paletted and direct modes |
| */ |
| /* AW |
| final int xScreen = OS.XDefaultScreenOfDisplay(xDisplay); |
| final int xVisual = OS.XDefaultVisual(xDisplay, xScreenNum); |
| Visual visual = new Visual(); |
| OS.memmove(visual, xVisual, visual.sizeof); |
| final int depth = OS.XDefaultDepthOfScreen(xScreen); |
| */ |
| |
| int depth= getCurrentScreenDepth(); |
| final boolean directColor = (depth > 8); |
| |
| // This code is intentionally commented since elsewhere in SWT we |
| // assume that depth <= 8 means we are in a paletted mode though |
| // this is not always the case. |
| //final boolean directColor = (visual.c_class == OS.TrueColor) || (visual.c_class == OS.DirectColor); |
| |
| /* AW |
| XColor xColor = new XColor(); |
| xColor.pixel = fromColor; |
| OS.XQueryColor(xDisplay, data.colormap, xColor); |
| final RGB fromRGB = new RGB((xColor.red & 0xffff) >>> 8, (xColor.green & 0xffff) >>> 8, (xColor.blue & 0xffff) >>> 8); |
| xColor.pixel = toColor; |
| OS.XQueryColor(xDisplay, data.colormap, xColor); |
| final RGB toRGB = new RGB((xColor.red & 0xffff) >>> 8, (xColor.green & 0xffff) >>> 8, (xColor.blue & 0xffff) >>> 8); |
| */ |
| |
| RGB fromRGB = Color.carbon_new(data.device, fromColor, false).getRGB(); |
| RGB toRGB = Color.carbon_new(data.device, toColor, false).getRGB(); |
| |
| final int redBits, greenBits, blueBits; |
| if (directColor) { |
| // RGB mapped display |
| redBits = getChannelWidth(0x00ff0000 /* AW visual.red_mask */); |
| greenBits = getChannelWidth(0x0000ff00 /* AW visual.green_mask */); |
| blueBits = getChannelWidth(0x000000ff /* AW visual.blue_mask */); |
| } else { |
| // Index display |
| redBits = greenBits = blueBits = 0; |
| } |
| |
| ImageData.fillGradientRectangle(this, data.device, |
| x, y, width, height, vertical, fromRGB, toRGB, |
| redBits, greenBits, blueBits); |
| |
| } finally { |
| unfocus(true); |
| } |
| } |
| |
| /** |
| * Computes the required channel width (depth) from a mask. |
| */ |
| static int getChannelWidth(int mask) { |
| int width = 0; |
| while (mask != 0) { |
| width += (mask & 1); |
| mask >>>= 1; |
| } |
| return width; |
| } |
| |
| /** |
| * Fills the interior of an oval, within the specified |
| * rectangular area, with the receiver's background |
| * color. |
| * |
| * @param x the x coordinate of the upper left corner of the oval to be filled |
| * @param y the y coordinate of the upper left corner of the oval to be filled |
| * @param width the width of the oval to be filled |
| * @param height the height of the oval to be filled |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see #drawOval |
| */ |
| public void fillOval (int x, int y, int width, int height) { |
| if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| if (width < 0) { |
| x = x + width; |
| width = -width; |
| } |
| if (height < 0) { |
| y = y + height; |
| height = -height; |
| } |
| try { |
| if (focus(true, null)) { |
| if ((data.background & 0xff000000) == 0) { |
| MacUtil.RGBForeColor(data.background); |
| Rect rect= new Rect(); |
| rect.left= (short)x; rect.top= (short)y; |
| rect.right= (short)(x + width); rect.bottom= (short)(y + height); |
| OS.PaintOval(rect); |
| } else { |
| // System.out.println("GC.fillOval: " + Integer.toHexString(data.background)); |
| } |
| } |
| } finally { |
| unfocus(true); |
| } |
| } |
| /** |
| * Fills the interior of the closed polygon which is defined by the |
| * specified array of integer coordinates, using the receiver's |
| * background color. The array contains alternating x and y values |
| * which are considered to represent points which are the vertices of |
| * the polygon. Lines are drawn between each consecutive pair, and |
| * between the first pair and last pair in the array. |
| * |
| * @param pointArray an array of alternating x and y values which are the vertices of the polygon |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT if pointArray is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see #drawPolygon |
| */ |
| public void fillPolygon(int[] pointArray) { |
| if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| if (pointArray == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); |
| |
| /* AW |
| short[] xPoints = new short[pointArray.length]; |
| for (int i = 0; i<pointArray.length;i++) { |
| xPoints[i] = (short) pointArray[i]; |
| } |
| int xDisplay = data.display; |
| XGCValues values = new XGCValues (); |
| OS.XGetGCValues (xDisplay, handle, OS.GCForeground | OS.GCBackground, values); |
| OS.XSetForeground (xDisplay, handle, values.background); |
| OS.XFillPolygon(xDisplay, data.drawable, handle,xPoints, xPoints.length / 2, OS.Complex, OS.CoordModeOrigin); |
| OS.XSetForeground (xDisplay, handle, values.foreground); |
| */ |
| int poly= 0; |
| try { |
| if (focus(true, null)) { |
| poly= OS.OpenPoly(); |
| OS.MoveTo((short)pointArray[0], (short)pointArray[1]); |
| for (int i= 2; i < pointArray.length; i+= 2) |
| OS.LineTo((short)pointArray[i], (short)pointArray[i+1]); |
| OS.ClosePoly(); |
| |
| MacUtil.RGBForeColor(data.background); |
| OS.PaintPoly(poly); |
| } |
| } finally { |
| unfocus(true); |
| } |
| if (poly != 0) |
| OS.KillPoly(poly); |
| } |
| /** |
| * Fills the interior of the rectangle specified by the arguments, |
| * using the receiver's background color. |
| * |
| * @param x the x coordinate of the rectangle to be filled |
| * @param y the y coordinate of the rectangle to be filled |
| * @param width the width of the rectangle to be filled |
| * @param height the height of the rectangle to be filled |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see #drawRectangle |
| */ |
| public void fillRectangle (int x, int y, int width, int height) { |
| if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| if (width < 0) { |
| x = x + width; |
| width = -width; |
| } |
| if (height < 0) { |
| y = y + height; |
| height = -height; |
| } |
| try { |
| if (focus(true, null)) { |
| Rect rect= new Rect(); |
| rect.left= (short)x; rect.top= (short)y; |
| rect.right= (short)(x + width); rect.bottom= (short)(y + height); |
| if (data.xorMode) { |
| OS.InvertRect(rect); |
| } else if ((data.background & 0xFF000000) == 0) { |
| MacUtil.RGBForeColor(data.background); |
| OS.PaintRect(rect); |
| } else { |
| short depth= getCurrentScreenDepth(); |
| int[] state= new int[1]; |
| OS.GetThemeDrawingState(state); |
| //OS.SetThemeBackground(OS.kThemeBrushDialogBackgroundActive, depth, true); |
| if (data.controlHandle != 0) |
| OS.SetUpControlBackground(data.controlHandle, depth, true); |
| OS.EraseRect(rect); |
| OS.SetThemeDrawingState(state[0], true); |
| } |
| } |
| } finally { |
| unfocus(true); |
| } |
| } |
| /** |
| * Fills the interior of the specified rectangle, using the receiver's |
| * background color. |
| * |
| * @param rectangle the rectangle to be filled |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the rectangle is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see #drawRectangle |
| */ |
| public void fillRectangle (Rectangle rect) { |
| if (rect == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); |
| fillRectangle(rect.x, rect.y, rect.width, rect.height); |
| } |
| /** |
| * Fills the interior of the round-cornered rectangle specified by |
| * the arguments, using the receiver's background color. |
| * |
| * @param x the x coordinate of the rectangle to be filled |
| * @param y the y coordinate of the rectangle to be filled |
| * @param width the width of the rectangle to be filled |
| * @param height the height of the rectangle to be filled |
| * @param arcWidth the horizontal diameter of the arc at the four corners |
| * @param arcHeight the vertical diameter of the arc at the four corners |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see #drawRoundRectangle |
| */ |
| public void fillRoundRectangle (int x, int y, int width, int height, int arcWidth, int arcHeight) { |
| if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| try { |
| if (focus(true, null)) { |
| if ((data.background & 0xff000000) == 0) { |
| MacUtil.RGBForeColor(data.background); |
| Rect rect= new Rect(); |
| rect.left= (short)x; rect.top= (short)y; |
| rect.right= (short)(x + width); rect.bottom= (short)(y + height); |
| OS.PaintRoundRect(rect, (short)arcWidth, (short)arcHeight); |
| } else { |
| // System.out.println("GC.fillRoundRectangle: " + Integer.toHexString(data.background)); |
| } |
| } |
| } finally { |
| unfocus(true); |
| } |
| } |
| /** |
| * Returns the <em>advance width</em> of the specified character in |
| * the font which is currently selected into the receiver. |
| * <p> |
| * The advance width is defined as the horizontal distance the cursor |
| * should move after printing the character in the selected font. |
| * </p> |
| * |
| * @param ch the character to measure |
| * @return the distance in the x direction to move past the character before painting the next |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public int getAdvanceWidth(char ch) { |
| if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| try { |
| focus(false, null); |
| carbon_installFont(); |
| return OS.CharWidth((byte) ch); |
| } finally { |
| unfocus(false); |
| } |
| } |
| /** |
| * Returns the background color. |
| * |
| * @return the receiver's background color |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public Color getBackground() { |
| if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| /* AW |
| int xDisplay = data.display; |
| XGCValues values = new XGCValues(); |
| OS.XGetGCValues(xDisplay, handle, OS.GCBackground, values); |
| XColor xColor = new XColor(); |
| xColor.pixel = values.background; |
| OS.XQueryColor(xDisplay,data.colormap,xColor); |
| */ |
| return Color.carbon_new(data.device, data.background, false); |
| } |
| /** |
| * Returns the width of the specified character in the font |
| * selected into the receiver. |
| * <p> |
| * The width is defined as the space taken up by the actual |
| * character, not including the leading and tailing whitespace |
| * or overhang. |
| * </p> |
| * |
| * @param ch the character to measure |
| * @return the width of the character |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public int getCharWidth(char ch) { |
| if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| System.out.println("GC.getCharWidth"); |
| return 0; |
| } |
| /** |
| * Returns the bounding rectangle of the receiver's clipping |
| * region. If no clipping region is set, the return value |
| * will be a rectangle which covers the entire bounds of the |
| * object the receiver is drawing on. |
| * |
| * @return the bounding rectangle of the clipping region |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public Rectangle getClipping() { |
| if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| /* AW |
| int clipRgn = data.clipRgn; |
| if (clipRgn == 0) { |
| int[] width = new int[1]; int[] height = new int[1]; |
| int[] unused = new int[1]; |
| OS.XGetGeometry(data.display, data.drawable, unused, unused, unused, width, height, unused, unused); |
| return new Rectangle(0, 0, width[0], height[0]); |
| } |
| XRectangle rect = new XRectangle(); |
| OS.XClipBox(clipRgn, rect); |
| return new Rectangle(rect.x, rect.y, rect.width, rect.height); |
| */ |
| Rect bounds= new Rect(); |
| if (data.clipRgn == 0) { |
| if (data.controlHandle != 0) { |
| OS.GetControlBounds(data.controlHandle, bounds); |
| return new Rectangle(0, 0, bounds.right - bounds.left, bounds.bottom - bounds.top); |
| } |
| if (data.image != null) { |
| return data.image.getBounds(); |
| } |
| System.out.println("GC.getClipping(): should not happen"); |
| return new Rectangle(0, 0, 100, 100); |
| } |
| OS.GetRegionBounds(data.clipRgn, bounds); |
| int width = bounds.right - bounds.left; |
| int height = bounds.bottom - bounds.top; |
| return new Rectangle(bounds.left, bounds.top, width, height); |
| } |
| /** |
| * Sets the region managed by the argument to the current |
| * clipping region of the receiver. |
| * |
| * @param region the region to fill with the clipping region |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the region is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public void getClipping(Region region) { |
| if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| if (region == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); |
| |
| if (region.handle == 0) |
| region.handle= OS.NewRgn(); |
| |
| if (data.clipRgn == 0) { |
| if (data.controlHandle != 0) { |
| OS.GetControlRegion(data.controlHandle, (short)OS.kWindowContentRgn, region.handle); |
| } else |
| System.out.println("GC.getClipping(Region): nyi"); |
| } else { |
| OS.CopyRgn(data.clipRgn, region.handle); |
| } |
| |
| /* AW |
| if (clipRgn == 0) { |
| int[] width = new int[1]; int[] height = new int[1]; |
| int[] unused = new int[1]; |
| OS.XGetGeometry(data.display, data.drawable, unused, unused, unused, width, height, unused, unused); |
| OS.XSubtractRegion (hRegion, hRegion, hRegion); |
| XRectangle rect = new XRectangle(); |
| rect.x = 0; rect.y = 0; |
| rect.width = (short)width[0]; rect.height = (short)height[0]; |
| OS.XUnionRectWithRegion(rect, hRegion, hRegion); |
| return; |
| } |
| OS.XSubtractRegion (hRegion, hRegion, hRegion); |
| OS.XUnionRegion (clipRgn, hRegion, hRegion); |
| */ |
| } |
| /** |
| * Returns the font currently being used by the receiver |
| * to draw and measure text. |
| * |
| * @return the receiver's font |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public Font getFont () { |
| if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| return Font.carbon_new(data.device, data.font); |
| } |
| int getFontHeight () { |
| try { |
| focus(false, null); |
| carbon_installFont(); |
| short[] fontInfo= new short[4]; |
| OS.GetFontInfo(fontInfo); // FontInfo |
| return fontInfo[0] + fontInfo[1]; |
| } finally { |
| unfocus(false); |
| } |
| } |
| /** |
| * Returns a FontMetrics which contains information |
| * about the font currently being used by the receiver |
| * to draw and measure text. |
| * |
| * @return font metrics for the receiver's font |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public FontMetrics getFontMetrics() { |
| if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| |
| try { |
| focus(false, null); |
| carbon_installFont(); |
| short[] fontInfo= new short[4]; |
| OS.GetFontInfo(fontInfo); // FontInfo |
| byte[] s= "abcdefghijklmnopqrstuvwxyz".getBytes(); |
| int width= OS.TextWidth(s, (short)0, (short)s.length) / 26; |
| return FontMetrics.carbon_new(fontInfo[0], fontInfo[1], width, fontInfo[3], fontInfo[0]+fontInfo[1]); |
| } finally { |
| unfocus(false); |
| } |
| } |
| /** |
| * Returns the receiver's foreground color. |
| * |
| * @return the color used for drawing foreground things |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public Color getForeground() { |
| if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| /* AW |
| int xDisplay = data.display; |
| XGCValues values = new XGCValues(); |
| OS.XGetGCValues(xDisplay, handle, OS.GCForeground, values); |
| XColor xColor = new XColor(); |
| xColor.pixel = values.foreground; |
| OS.XQueryColor(xDisplay,data.colormap,xColor); |
| return Color.motif_new(data.device, xColor); |
| */ |
| return Color.carbon_new(data.device, data.foreground, false); |
| } |
| /** |
| * Returns the receiver's line style, which will be one |
| * of the constants <code>SWT.LINE_SOLID</code>, <code>SWT.LINE_DASH</code>, |
| * <code>SWT.LINE_DOT</code>, <code>SWT.LINE_DASHDOT</code> or |
| * <code>SWT.LINE_DASHDOTDOT</code>. |
| * |
| * @return the style used for drawing lines |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public int getLineStyle() { |
| if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| return data.lineStyle; |
| } |
| /** |
| * Returns the width that will be used when drawing lines |
| * for all of the figure drawing operations (that is, |
| * <code>drawLine</code>, <code>drawRectangle</code>, |
| * <code>drawPolyline</code>, and so forth. |
| * |
| * @return the receiver's line width |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public int getLineWidth() { |
| if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| return data.lineWidth; |
| } |
| /** |
| * Returns <code>true</code> if this GC is drawing in the mode |
| * where the resulting color in the destination is the |
| * <em>exclusive or</em> of the color values in the source |
| * and the destination, and <code>false</code> if it is |
| * drawing in the mode where the destination color is being |
| * replaced with the source color value. |
| * |
| * @return <code>true</code> true if the receiver is in XOR mode, and false otherwise |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public boolean getXORMode() { |
| if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| return data.xorMode; |
| } |
| /** |
| * Returns an integer hash code for the receiver. Any two |
| * objects which return <code>true</code> when passed to |
| * <code>equals</code> must return the same value for this |
| * method. |
| * |
| * @return the receiver's hash |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| * |
| * @see #equals |
| */ |
| public int hashCode () { |
| return handle; |
| } |
| void init(Drawable drawable, GCData data, int xGC) { |
| /* AW |
| int xDisplay = data.display; |
| int foreground = data.foreground; |
| if (foreground != -1) OS.XSetForeground (xDisplay, xGC, foreground); |
| int background = data.background; |
| if (background != -1) OS.XSetBackground (xDisplay, xGC, background); |
| */ |
| Image image = data.image; |
| if (image != null) { |
| image.memGC = this; |
| /* |
| * The transparent pixel mask might change when drawing on |
| * the image. Destroy it so that it is regenerated when |
| * necessary. |
| */ |
| if (image.transparentPixel != -1) image.destroyMask(); |
| } |
| this.drawable = drawable; |
| this.data = data; |
| if (xGC == 0) |
| SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| handle = xGC; |
| } |
| /** |
| * Returns <code>true</code> if the receiver has a clipping |
| * region set into it, and <code>false</code> otherwise. |
| * If this method returns false, the receiver will draw on all |
| * available space in the destination. If it returns true, |
| * it will draw only in the area that is covered by the region |
| * that can be accessed with <code>getClipping(region)</code>. |
| * |
| * @return <code>true</code> if the GC has a clipping region, and <code>false</code> otherwise |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public boolean isClipped() { |
| if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| System.out.println("GC.isClipped: nyi"); |
| return data.clipRgn != 0; |
| } |
| /** |
| * Returns <code>true</code> if the GC has been disposed, |
| * and <code>false</code> otherwise. |
| * <p> |
| * This method gets the dispose state for the GC. |
| * When a GC has been disposed, it is an error to |
| * invoke any other method using the GC. |
| * |
| * @return <code>true</code> when the GC is disposed and <code>false</code> otherwise |
| */ |
| public boolean isDisposed() { |
| return handle == 0; |
| } |
| /* |
| public static GC carbon_new(Drawable drawable, GCData data) { |
| GC gc = new GC(); |
| int port = drawable.internal_new_GC(data); |
| gc.init(drawable, data, port); |
| return gc; |
| } |
| */ |
| /** |
| * Sets the background color. The background color is used |
| * for fill operations and as the background color when text |
| * is drawn. |
| * |
| * @param color the new background color for the receiver |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the color is null</li> |
| * <li>ERROR_INVALID_ARGUMENT - if the color has been disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public void setBackground (Color color) { |
| if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| if (color == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); |
| if (color.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT); |
| data.background= color.handle; |
| } |
| /** |
| * Sets the area of the receiver which can be changed |
| * by drawing operations to the rectangular area specified |
| * by the arguments. |
| * |
| * @param x the x coordinate of the clipping rectangle |
| * @param y the y coordinate of the clipping rectangle |
| * @param width the width of the clipping rectangle |
| * @param height the height of the clipping rectangle |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public void setClipping (int x, int y, int width, int height) { |
| if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| if (data.clipRgn == 0) |
| data.clipRgn = OS.NewRgn (); |
| OS.SetRectRgn(data.clipRgn, (short) x, (short) y, (short) (x+width), (short) (y+height)); |
| data.pendingClip= true; |
| } |
| /** |
| * Sets the area of the receiver which can be changed |
| * by drawing operations to the rectangular area specified |
| * by the argument. |
| * |
| * @param rect the clipping rectangle |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public void setClipping (Rectangle rect) { |
| if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| if (rect == null) { |
| if (data.clipRgn != 0) { |
| OS.DisposeRgn(data.clipRgn); |
| data.clipRgn= 0; |
| } |
| data.pendingClip= true; |
| return; |
| } |
| setClipping (rect.x, rect.y, rect.width, rect.height); |
| } |
| /** |
| * Sets the area of the receiver which can be changed |
| * by drawing operations to the region specified |
| * by the argument. |
| * |
| * @param rect the clipping region. |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public void setClipping (Region region) { |
| if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| if (region == null) { |
| if (data.clipRgn != 0) { |
| OS.DisposeRgn (data.clipRgn); |
| data.clipRgn = 0; |
| } |
| } else { |
| if (data.clipRgn == 0) |
| data.clipRgn = OS.NewRgn(); |
| OS.CopyRgn(region.handle, data.clipRgn); |
| } |
| data.pendingClip= true; |
| } |
| /** |
| * Sets the font which will be used by the receiver |
| * to draw and measure text to the argument. If the |
| * argument is null, then a default font appropriate |
| * for the platform will be used instead. |
| * |
| * @param font the new font for the receiver, or null to indicate a default font |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the font has been disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public void setFont (Font font) { |
| if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| if (font == null) { |
| data.font = data.device.systemFont; |
| } else { |
| if (font.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT); |
| data.font = font.handle; |
| } |
| } |
| /** |
| * Sets the foreground color. The foreground color is used |
| * for drawing operations including when text is drawn. |
| * |
| * @param color the new foreground color for the receiver |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the color is null</li> |
| * <li>ERROR_INVALID_ARGUMENT - if the color has been disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public void setForeground (Color color) { |
| if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| if (color == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); |
| if (color.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT); |
| data.foreground= color.handle; |
| } |
| /** |
| * Sets the receiver's line style to the argument, which must be one |
| * of the constants <code>SWT.LINE_SOLID</code>, <code>SWT.LINE_DASH</code>, |
| * <code>SWT.LINE_DOT</code>, <code>SWT.LINE_DASHDOT</code> or |
| * <code>SWT.LINE_DASHDOTDOT</code>. |
| * |
| * @param lineStyle the style to be used for drawing lines |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public void setLineStyle(int lineStyle) { |
| if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| /* AW |
| int xDisplay = data.display; |
| switch (lineStyle) { |
| case SWT.LINE_SOLID: |
| data.lineStyle = lineStyle; |
| OS.XSetLineAttributes(xDisplay, handle, 0, OS.LineSolid, OS.CapButt, OS.JoinMiter); |
| return; |
| case SWT.LINE_DASH: |
| OS.XSetDashes(xDisplay,handle,0, new byte[] {6, 2},2); |
| break; |
| case SWT.LINE_DOT: |
| OS.XSetDashes(xDisplay,handle,0, new byte[] {3, 1},2); |
| break; |
| case SWT.LINE_DASHDOT: |
| OS.XSetDashes(xDisplay,handle,0, new byte[] {6, 2, 3, 1},4); |
| break; |
| case SWT.LINE_DASHDOTDOT: |
| OS.XSetDashes(xDisplay,handle,0, new byte[] {6, 2, 3, 1, 3, 1},6); |
| break; |
| default: |
| SWT.error(SWT.ERROR_INVALID_ARGUMENT); |
| } |
| data.lineStyle = lineStyle; |
| OS.XSetLineAttributes(xDisplay, handle, 0, OS.LineDoubleDash, OS.CapButt, OS.JoinMiter); |
| */ |
| } |
| /** |
| * Sets the width that will be used when drawing lines |
| * for all of the figure drawing operations (that is, |
| * <code>drawLine</code>, <code>drawRectangle</code>, |
| * <code>drawPolyline</code>, and so forth. |
| * |
| * @param lineWidth the width of a line |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public void setLineWidth(int width) { |
| if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| if (data.lineStyle == SWT.LINE_SOLID) { |
| /* AW |
| OS.XSetLineAttributes(data.display, handle, width, OS.LineSolid, OS.CapButt, OS.JoinMiter); |
| */ |
| } else { |
| /* AW |
| OS.XSetLineAttributes(data.display, handle, width, OS.LineDoubleDash, OS.CapButt, OS.JoinMiter); |
| */ |
| } |
| data.lineWidth= width; |
| } |
| /** |
| * If the argument is <code>true</code>, puts the receiver |
| * in a drawing mode where the resulting color in the destination |
| * is the <em>exclusive or</em> of the color values in the source |
| * and the destination, and if the argument is <code>false</code>, |
| * puts the receiver in a drawing mode where the destination color |
| * is replaced with the source color value. |
| * |
| * @param xor if <code>true</code>, then <em>xor</em> mode is used, otherwise <em>source copy</em> mode is used |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public void setXORMode(boolean xor) { |
| if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| data.xorMode= xor; |
| } |
| /** |
| * Returns the extent of the given string. No tab |
| * expansion or carriage return processing will be performed. |
| * <p> |
| * The <em>extent</em> of a string is the width and height of |
| * the rectangular area it would cover if drawn in a particular |
| * font (in this case, the current font in the receiver). |
| * </p> |
| * |
| * @param string the string to measure |
| * @return a point containing the extent of the string |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the string is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public Point stringExtent(String string) { |
| if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| if (string == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); |
| if (string.length () == 0) return new Point(0, getFontHeight()); |
| /* AW |
| byte[] buffer = Converter.wcsToMbcs(getCodePage (), string, true); |
| int xmString = OS.XmStringCreate(buffer, OS.XmFONTLIST_DEFAULT_TAG); |
| int fontList = data.fontList; |
| int width = OS.XmStringWidth(fontList, xmString); |
| int height = OS.XmStringHeight(fontList, xmString); |
| OS.XmStringFree(xmString); |
| */ |
| try { |
| focus(false, null); |
| carbon_installFont(); |
| byte[] s= string.getBytes(); |
| int width= OS.TextWidth(s, (short)0, (short)s.length); |
| short[] fontInfo= new short[4]; |
| OS.GetFontInfo(fontInfo); // FontInfo |
| return new Point(width, fontInfo[0] + fontInfo[1]); |
| } finally { |
| unfocus(false); |
| } |
| } |
| /** |
| * Returns the extent of the given string. Tab expansion and |
| * carriage return processing are performed. |
| * <p> |
| * The <em>extent</em> of a string is the width and height of |
| * the rectangular area it would cover if drawn in a particular |
| * font (in this case, the current font in the receiver). |
| * </p> |
| * |
| * @param string the string to measure |
| * @return a point containing the extent of the string |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the string is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public Point textExtent(String string) { |
| return textExtent(string, SWT.DRAW_DELIMITER | SWT.DRAW_TAB); |
| } |
| /** |
| * Returns the extent of the given string. Tab expansion, line |
| * delimiter and mnemonic processing are performed according to |
| * the specified flags, which can be a combination of: |
| * <dl> |
| * <dt><b>DRAW_DELIMITER</b></dt> |
| * <dd>draw multiple lines</dd> |
| * <dt><b>DRAW_TAB</b></dt> |
| * <dd>expand tabs</dd> |
| * <dt><b>DRAW_MNEMONIC</b></dt> |
| * <dd>underline the mnemonic character</dd> |
| * <dt><b>DRAW_TRANSPARENT</b></dt> |
| * <dd>transparent background</dd> |
| * </dl> |
| * <p> |
| * The <em>extent</em> of a string is the width and height of |
| * the rectangular area it would cover if drawn in a particular |
| * font (in this case, the current font in the receiver). |
| * </p> |
| * |
| * @param string the string to measure |
| * @param flags the flags specifing how to process the text |
| * @return a point containing the extent of the string |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the string is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> |
| * </ul> |
| */ |
| public Point textExtent(String string, int flags) { |
| if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| if (string == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); |
| if (string.length () == 0) return new Point(0, getFontHeight()); |
| |
| /* AW |
| if (data.renderTable == 0) createRenderTable(); |
| int renderTable = data.renderTable; |
| |
| int tableLength = 0; |
| Device device = data.device; |
| int[] parseTable = new int[2]; |
| char[] text = new char[string.length()]; |
| string.getChars(0, text.length, text, 0); |
| if ((flags & SWT.DRAW_DELIMITER) != 0) parseTable[tableLength++] = device.crMapping; |
| if ((flags & SWT.DRAW_TAB) != 0) parseTable[tableLength++] = device.tabMapping; |
| if ((flags & SWT.DRAW_MNEMONIC) != 0) stripMnemonic(text); |
| |
| byte[] buffer = Converter.wcsToMbcs(getCodePage(), text, true); |
| int xmString = OS.XmStringParseText(buffer, 0, OS.XmFONTLIST_DEFAULT_TAG, OS.XmCHARSET_TEXT, parseTable, tableLength, 0); |
| int width = OS.XmStringWidth(renderTable, xmString); |
| int height = OS.XmStringHeight(renderTable, xmString); |
| OS.XmStringFree(xmString); |
| return new Point(width, height); |
| */ |
| try { |
| focus(false, null); |
| carbon_installFont(); |
| byte[] s= string.getBytes(); |
| int width= OS.TextWidth(s, (short)0, (short)s.length); |
| short[] fontInfo= new short[4]; |
| OS.GetFontInfo(fontInfo); // FontInfo |
| return new Point(width, fontInfo[0] + fontInfo[1]); |
| } finally { |
| unfocus(false); |
| } |
| } |
| /** |
| * Returns a string containing a concise, human-readable |
| * description of the receiver. |
| * |
| * @return a string representation of the receiver |
| */ |
| public String toString () { |
| if (isDisposed()) return "GC {*DISPOSED*}"; |
| return "GC {" + handle + "}"; |
| } |
| |
| //---- MacOS X Carbon-only API |
| |
| public void carbon_setClipAgainstChildren(boolean clipAgainstChildren) { |
| data.clipAgainstChildren= clipAgainstChildren; |
| } |
| |
| public void carbon_installFont() { |
| if (data != null && data.font != null) |
| data.font.installInGrafPort(); |
| } |
| |
| private boolean focus(boolean doClip, Rect bounds) { |
| |
| if (data.isFocused && !data.pendingClip) { |
| return true; |
| } |
| |
| // save global state |
| OS.GetGWorld(data.savePort, data.saveGWorld); |
| OS.SetGWorld(handle, data.saveGWorld[0]); |
| |
| if (!doClip) |
| return true; |
| |
| int dx= 0, dy= 0; |
| |
| // set origin of port using drawable bounds |
| if (data.controlHandle != 0) { |
| Rect r= new Rect(); |
| MacUtil.getControlBounds(data.controlHandle, r); |
| dx= r.left; |
| dy= r.top; |
| OS.SetOrigin((short)-dx, (short)-dy); |
| org.eclipse.swt.internal.carbon.Point p= new org.eclipse.swt.internal.carbon.Point(); |
| p.h= (short)-dx; |
| p.v= (short)-dy; |
| OS.QDSetPatternOrigin(p); |
| } |
| // save clip region |
| OS.GetClip(data.saveClip); |
| |
| // calculate new clip based on the Control's bound and GC clipping region |
| if (data.controlHandle != 0) { |
| |
| int result= OS.NewRgn(); |
| |
| if (data.damageRgn == 0) { |
| // since we've got no damage region |
| // we assume that focus has been called for direct drawing. |
| // We need to calculate the visible region of the control. |
| MacUtil.getVisibleRegion(data.controlHandle, result, data.clipAgainstChildren); |
| OS.OffsetRgn(result, (short)-dx, (short)-dy); |
| } else { |
| // the damage area takes the visible region of the Control into account |
| OS.CopyRgn(data.damageRgn, result); |
| } |
| |
| // clip against GC clipping region |
| if (data.clipRgn != 0) |
| OS.SectRgn(result, data.clipRgn, result); |
| |
| OS.SetClip(result); |
| |
| // optionally extract clip bounds |
| if (bounds != null) |
| OS.GetRegionBounds(result, bounds); |
| |
| OS.DisposeRgn(result); |
| |
| } else { |
| // clip against GC clipping region |
| if (data.clipRgn != 0) { |
| OS.SetClip(data.clipRgn); |
| if (bounds != null) |
| OS.GetRegionBounds(data.clipRgn, bounds); |
| } else { |
| if (bounds != null) |
| OS.SetRect(bounds, (short)0, (short)0, (short)0x7fff, (short)0x7fff); |
| } |
| } |
| data.pendingClip= false; |
| |
| return true; |
| } |
| |
| private void unfocus(boolean doClip) { |
| |
| if (data.isFocused) |
| return; |
| |
| if (doClip) { |
| // restore clipping and origin of port |
| OS.SetClip(data.saveClip); |
| OS.SetOrigin((short)0, (short)0); |
| } |
| |
| // restore globals |
| OS.SetGWorld(data.savePort[0], data.saveGWorld[0]); |
| } |
| |
| public Rectangle carbon_focus(int damageRgn) { |
| return carbon_focus(damageRgn, 0); |
| } |
| |
| public Rectangle carbon_focus(int damageRgn, int cgcontext) { |
| Rect bounds= new Rect(); |
| data.damageRgn= damageRgn; |
| data.context[0]= cgcontext; |
| OS.LockPortBits(handle); |
| focus(true, bounds); |
| data.isFocused= true; |
| int width = bounds.right - bounds.left; |
| int height = bounds.bottom - bounds.top; |
| return new Rectangle(bounds.left, bounds.top, width, height); |
| } |
| |
| public void carbon_unfocus() { |
| data.isFocused= false; |
| data.context[0]= 0; |
| unfocus(true); |
| data.damageRgn= 0; |
| OS.UnlockPortBits(handle); |
| } |
| |
| private short getCurrentScreenDepth() { |
| int gd= OS.GetGDevice(); |
| if (gd != 0) { |
| int pm= OS.getgdPMap(gd); |
| if (pm != 0) |
| return OS.GetPixDepth(pm); |
| } |
| return 32; |
| } |
| |
| // new Core Graphic stuff |
| |
| public int carbon_CG_focus() { |
| if (data.context[0] == 0) { |
| // create CGContext from GrafPort |
| if (OS.QDBeginCGContext(handle, data.context) != OS.noErr) |
| return 0; |
| data.isCGContextCreated= true; |
| // synch CGContext with GrafPort clipping and offset |
| Rect b= new Rect(); |
| OS.GetPortBounds(handle, b); |
| |
| int clip= OS.NewRgn(); |
| OS.GetPortClipRegion(handle, clip); |
| OS.ClipCGContextToRegion(data.context[0], b, clip); |
| OS.DisposeRgn(clip); |
| |
| OS.CGContextTranslateCTM(data.context[0], 0, b.bottom-b.top); |
| OS.CGContextScaleCTM(data.context[0], 1, -1); |
| } |
| return data.context[0]; |
| } |
| |
| public void carbon_CG_unfocus() { |
| if (data.isCGContextCreated) |
| OS.QDEndCGContext(handle, data.context); |
| data.context[0]= 0; |
| } |
| } |