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Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/photon/org/eclipse/swt/graphics/GC.java')
| -rwxr-xr-x | bundles/org.eclipse.swt/Eclipse SWT/photon/org/eclipse/swt/graphics/GC.java | 3655 |
1 files changed, 0 insertions, 3655 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/photon/org/eclipse/swt/graphics/GC.java b/bundles/org.eclipse.swt/Eclipse SWT/photon/org/eclipse/swt/graphics/GC.java deleted file mode 100755 index ea5c82634b..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT/photon/org/eclipse/swt/graphics/GC.java +++ /dev/null @@ -1,3655 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2000, 2009 IBM Corporation and others. - * All rights reserved. This program and the accompanying materials - * are made available under the terms of the Eclipse Public License v1.0 - * which accompanies this distribution, and is available at - * http://www.eclipse.org/legal/epl-v10.html - * - * Contributors: - * IBM Corporation - initial API and implementation - *******************************************************************************/ -package org.eclipse.swt.graphics; - - -import org.eclipse.swt.internal.*; -import org.eclipse.swt.internal.photon.*; -import org.eclipse.swt.*; - -/** - * 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>. - * <dl> - * <dt><b>Styles:</b></dt> - * <dd>LEFT_TO_RIGHT, RIGHT_TO_LEFT</dd> - * </dl> - * - * <p> - * The SWT drawing coordinate system is the two-dimensional space with the origin - * (0,0) at the top left corner of the drawing area and with (x,y) values increasing - * to the right and downward respectively. - * </p> - * - * <p> - * The result of drawing on an image that was created with an indexed - * palette using a color that is not in the palette is platform specific. - * Some platforms will match to the nearest color while other will draw - * the color itself. This happens because the allocated image might use - * a direct palette on platforms that do not support indexed palette. - * </p> - * - * <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> - * - * <p> - * Note: Only one of LEFT_TO_RIGHT and RIGHT_TO_LEFT may be specified. - * </p> - * - * @see org.eclipse.swt.events.PaintEvent - * @see <a href="http://www.eclipse.org/swt/snippets/#gc">GC snippets</a> - * @see <a href="http://www.eclipse.org/swt/examples.php">SWT Examples: GraphicsExample, PaintExample</a> - * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> - */ -public final class GC extends Resource { - /** - * the handle to the OS device context - * (Warning: This field is platform dependent) - * <p> - * <b>IMPORTANT:</b> This field is <em>not</em> part of the SWT - * public API. It is marked public only so that it can be shared - * within the packages provided by SWT. It is not available on all - * platforms and should never be accessed from application code. - * </p> - */ - public int handle; - - Drawable drawable; - GCData data; - - int dirtyBits; - - static final int DefaultBack = 0xffffff; - static final int DefaultFore = 0x000000; - static final byte[][] DashList = { - { }, // SWT.LINE_SOLID - { 18, 6 }, // SWT.LINE_DASH - { 3, 3 }, // SWT.LINE_DOT - { 9, 6, 3, 6 }, // SWT.LINE_DASHDOT - { 9, 3, 3, 3, 3, 3 } // SWT.LINE_DASHDOTDOT - }; - // Photon Draw Buffer Size for off screen drawing. - static int DrawBufferSize = 48 * 1024; - - static final int DIRTY_BACKGROUND = 1 << 0; - static final int DIRTY_FOREGROUND = 1 << 1; - static final int DIRTY_CLIPPING = 1 << 2; - static final int DIRTY_FONT = 1 << 3; - static final int DIRTY_LINESTYLE = 1 << 4; - static final int DIRTY_LINEWIDTH = 1 << 5; - static final int DIRTY_LINECAP = 1 << 6; - static final int DIRTY_LINEJOIN = 1 << 7; - static final int DIRTY_XORMODE = 1 << 8; - -GC() { -} - -/** - * Constructs a new instance of this class which has been - * configured to draw on the specified drawable. Sets the - * foreground color, background color and font 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> - * <li>ERROR_THREAD_INVALID_ACCESS if not called from the thread that created the drawable</li> - * </ul> - */ -public GC(Drawable drawable) { - this(drawable, 0); -} - -/** - * Constructs a new instance of this class which has been - * configured to draw on the specified drawable. Sets the - * foreground color, background color and font 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 - * @param style the style of GC to construct - * - * @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> - * <li>ERROR_THREAD_INVALID_ACCESS if not called from the thread that created the drawable</li> - * </ul> - * - * @since 2.1.2 - */ -public GC(Drawable drawable, int style) { - int flags = OS.PtEnter(0); - try { - if (drawable == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); - GCData data = new GCData (); - data.style = checkStyle(style); - int hDC = drawable.internal_new_GC (data); - Device device = data.device; - if (device == null) device = Device.getDevice(); - if (device == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); - this.device = data.device = device; - init (drawable, data, hDC); - init(); - } finally { - if (flags >= 0) OS.PtLeave(flags); - } -} - -static int checkStyle (int style) { - if ((style & SWT.LEFT_TO_RIGHT) != 0) style &= ~SWT.RIGHT_TO_LEFT; - return style & (SWT.LEFT_TO_RIGHT | SWT.RIGHT_TO_LEFT); -} - -/** - * Copies a rectangular area of the receiver at the specified - * position into the image, which must be of type <code>SWT.BITMAP</code>. - * - * @param image the image to copy into - * @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); - int flags = OS.PtEnter(0); - try { - Rectangle bounds = image.getBounds(); - int memImage = 0; - PhRect_t rect = new PhRect_t(); - rect.ul_x = (short)x; rect.ul_y = (short)y; - rect.lr_x = (short)(x + bounds.width - 1); rect.lr_y = (short)(y + bounds.height - 1); - boolean sharedMem = true; - int rid = data.rid; - int widget = data.widget; - if (rid == OS.Ph_DEV_RID) { - memImage = OS.PgShmemCreate(OS.PgReadScreenSize(rect), null); - if (memImage != 0) memImage = OS.PgReadScreen(rect, memImage); - } else if (widget != 0) { - short [] widget_x = new short [1], widget_y = new short [1]; - OS.PtGetAbsPosition(widget, widget_x, widget_y); - rect.ul_x += widget_x[0]; - rect.ul_y += widget_y[0]; - rect.lr_x += widget_y[0]; - rect.lr_y += widget_y[0]; - memImage = OS.PgShmemCreate(OS.PgReadScreenSize(rect), null); - if (memImage != 0) memImage = OS.PgReadScreen(rect, memImage); - } else if (data.image != null) { - memImage = OS.PiCropImage(data.image.handle, rect, 0); - sharedMem = false; - } - if (memImage == 0) SWT.error(SWT.ERROR_NO_HANDLES); - PhImage_t phImage = new PhImage_t(); - OS.memmove(phImage, memImage, PhImage_t.sizeof); - PhPoint_t trans = new PhPoint_t(); - PhPoint_t pos = new PhPoint_t(); - PhDim_t scale = new PhDim_t(); - scale.w = (short)bounds.width; - scale.h = (short)bounds.height; - int mc = OS.PmMemCreateMC(image.handle, scale, trans); - int prevContext = OS.PmMemStart(mc); - OS.PgSetDrawBufferSize(DrawBufferSize); - if (phImage.palette != 0) OS.PgSetPalette(phImage.palette, 0, (short)0, (short)phImage.colors, OS.Pg_PALSET_SOFT, 0); - OS.PgDrawImage(phImage.image, phImage.type, pos, scale, phImage.bpl, 0); - if (phImage.palette != 0) OS.PgSetPalette(0, 0, (short)0, (short)-1, 0, 0); - OS.PmMemFlush(mc, image.handle); - OS.PmMemStop(mc); - OS.PmMemReleaseMC(mc); - OS.PhDCSetCurrent(prevContext); - if (sharedMem) { - OS.PgShmemDestroy(memImage); - } else { - phImage.flags = (byte)OS.Ph_RELEASE_IMAGE_ALL; - OS.memmove(memImage, phImage, PhImage_t.sizeof); - OS.PhReleaseImage(memImage); - OS.free(memImage); - } - } finally { - if (flags >= 0) OS.PtLeave(flags); - } -} - -/** - * 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) { - copyArea(x, y, width, height, destX, destY, true); -} -/** - * 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 - * @param paint if <code>true</code> paint events will be generated for old and obscured areas - * - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - * - * @since 3.1 - */ -public void copyArea(int x, int y, int width, int height, int destX, int destY, boolean paint) { - 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; - - int flags = OS.PtEnter(0); - try { - boolean overlaps = (destX < x + width) && (destY < y + height) && - (destX + width > x) && (destY + height > y); - int widget = data.widget; - Image image = data.image; - if (image != null) { - int drawImage = image.handle; - PhImage_t phDrawImage = new PhImage_t(); - OS.memmove(phDrawImage, drawImage, PhImage_t.sizeof); - if (overlaps) { - PhPoint_t trans = new PhPoint_t(); - PhDim_t scale = new PhDim_t(); - scale.w = (short)width; - scale.h = (short)height; - PhPoint_t pos = new PhPoint_t(); - pos.x = (short)-x; - pos.y = (short)-y; - PhDim_t dim = new PhDim_t(); - dim.w = (short)Math.min(phDrawImage.size_w, x + width); - dim.h = (short)Math.min(phDrawImage.size_h, y + height); - /* Feature on Photon - It is only possible to draw on images of - type Pg_IMAGE_PALETTE_BYTE and Pg_IMAGE_DIRECT_888. - */ - int type = OS.Pg_IMAGE_PALETTE_BYTE; - if ((phDrawImage.type & OS.Pg_IMAGE_CLASS_MASK) == OS.Pg_IMAGE_CLASS_DIRECT) { - type = OS.Pg_IMAGE_DIRECT_888; - } - int memImage = OS.PhCreateImage(null, (short)width, (short)height, type, phDrawImage.palette, phDrawImage.colors, 0); - int mc = OS.PmMemCreateMC(memImage, scale, trans); - int prevContext = OS.PmMemStart(mc); - OS.PgSetDrawBufferSize(DrawBufferSize); - if (phDrawImage.palette != 0) OS.PgSetPalette(phDrawImage.palette, 0, (short)0, (short)phDrawImage.colors, OS.Pg_PALSET_SOFT, 0); - OS.PgDrawImage(phDrawImage.image, phDrawImage.type, pos, dim, phDrawImage.bpl, 0); - if (phDrawImage.palette != 0) OS.PgSetPalette(0, 0, (short)0, (short)-1, 0, 0); - OS.PmMemFlush(mc, memImage); - OS.PmMemStop(mc); - OS.PmMemReleaseMC(mc); - OS.PhDCSetCurrent(prevContext); - x = (short)0; - y = (short)0; - drawImage = memImage; - OS.memmove(phDrawImage, drawImage, PhImage_t.sizeof); - phDrawImage.flags = (byte)OS.Ph_RELEASE_IMAGE_ALL; - OS.memmove(drawImage, phDrawImage, PhImage_t.sizeof); - } - PhPoint_t pos = new PhPoint_t(); - pos.x = (short)(destX - x); - pos.y = (short)(destY - y); - PhRect_t clip = new PhRect_t(); - clip.ul_x = (short)destX; - clip.ul_y = (short)destY; - clip.lr_x = (short)(destX + width - 1); - clip.lr_y = (short)(destY + height - 1); - PhDim_t dim = new PhDim_t(); - dim.w = (short)Math.min(phDrawImage.size_w, x + width); - dim.h = (short)Math.min(phDrawImage.size_h, y + height); - int prevContext = setGC(); - setGCTranslation(); - setGCClipping(); - OS.PgSetUserClip(clip); - if (phDrawImage.palette != 0) OS.PgSetPalette(phDrawImage.palette, 0, (short)0, (short)phDrawImage.colors, OS.Pg_PALSET_SOFT, 0); - OS.PgDrawImage(phDrawImage.image, phDrawImage.type, pos, dim, phDrawImage.bpl, 0); - if (phDrawImage.palette != 0) OS.PgSetPalette(0, 0, (short)0, (short)-1, 0, 0); - OS.PgSetUserClip(null); - unsetGC(prevContext); - if (drawImage != image.handle) { - OS.PhReleaseImage(drawImage); - OS.free(drawImage); - } - } else if (widget != 0) { - PhRect_t rect = new PhRect_t(); - rect.ul_x = (short)x; - rect.ul_y = (short)y; - rect.lr_x = (short)(x + width - 1); - rect.lr_y = (short)(y + height - 1); - PhPoint_t delta = new PhPoint_t(); - delta.x = (short)deltaX; - delta.y = (short)deltaY; - int visibleTiles = getClipping(widget, data.topWidget, true, true, null); - if ( visibleTiles == 0 ) - OS.PtBlit(widget, rect, delta); - else { - int srcTile = OS.PhGetTile(); - OS.memmove(srcTile, rect, PhRect_t.sizeof); - OS.PtClippedBlit(widget, srcTile, delta, visibleTiles); - OS.PhFreeTiles(srcTile);; - OS.PhFreeTiles(visibleTiles); - } - } - } finally { - if (flags >= 0) OS.PtLeave(flags); - } -} - -void destroy() { - int flags = OS.PtEnter(0); - try { - int clipRects = data.clipRects; - if (clipRects != 0) { - OS.free(clipRects); - data.clipRects = data.clipRectsCount = 0; - } - Image image = data.image; - if (image != null) { - flushImage(); - /* Regenerate the mask if necessary */ - if (image.transparentPixel != -1) { - PhImage_t phImage = new PhImage_t (); - OS.memmove(phImage, image.handle, PhImage_t.sizeof); - if (phImage.mask_bm == 0) { - createMask(image.handle, phImage.type, image.transparentPixel); - } - } - image.memGC = null; - } - - /* - * Dispose the HDC. - */ - drawable.internal_dispose_GC(handle, data); - drawable = null; - handle = 0; - data.image = null; - data.font = null; - data.rid = data.widget = data.topWidget = 0; - data = null; - } finally { - if (flags >= 0) OS.PtLeave(flags); - } -} - -/** - * 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 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 arcAngle) { - 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 || arcAngle == 0) return; - if (startAngle > 0) { - if (arcAngle > 0) { - //No need to modify start angle. - arcAngle += startAngle; - } else { - int newStartAngle; - int newStopAngle = startAngle; - if (startAngle > Math.abs(arcAngle)) { - newStartAngle = startAngle - Math.abs(arcAngle); - } else { - newStartAngle = startAngle + 360 - Math.abs(arcAngle); - } - startAngle = newStartAngle; - arcAngle = newStopAngle; - } - } else { - if (arcAngle > 0) { - arcAngle = arcAngle + startAngle; - startAngle = 360 - Math.abs(startAngle); - } else { - int newStopAngle = 360 + startAngle; - startAngle = newStopAngle - Math.abs(arcAngle); - arcAngle = newStopAngle; - } - } - startAngle = (int) (startAngle * 65536 / 360); - arcAngle = (int) (arcAngle * 65536 / 360); - - PhPoint_t center = new PhPoint_t(); - center.x = (short)(x + (width / 2)); - center.y = (short)(y + (height / 2)); - PhPoint_t radii = new PhPoint_t(); - radii.x = (short)(width / 2); - radii.y = (short)(height / 2); - - int flags = OS.PtEnter(0); - try { - int prevContext = setGC(); - setGCTranslation(); - setGCClipping(); - OS.PgDrawArc(center, radii, startAngle, arcAngle, OS.Pg_ARC | OS.Pg_DRAW_STROKE); - unsetGC(prevContext); - } finally { - if (flags >= 0) OS.PtLeave(flags); - } -} - -/** - * 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(int, int, int, int) - */ -public void drawFocus (int x, int y, int width, int height) { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - int flags = OS.PtEnter(0); - try { - int prevContext = setGC(); - setGCTranslation(); - setGCClipping(); - if (width < 0) width -= width; - if (height < 0) height -= height; - OS.PgSetStrokeColor(0x9098F8); - OS.PgDrawIRect(x, y, x + width - 1, y + height - 1, OS.Pg_DRAW_STROKE); - OS.PgSetStrokeColor(data.foreground); - unsetGC(prevContext); - } finally { - if (flags >= 0) OS.PtLeave(flags); - } -} - -/** - * 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 SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - * @exception SWTError <ul> - * <li>ERROR_NO_HANDLES - if no handles are available to perform the operation</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 SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - * @exception SWTError <ul> - * <li>ERROR_NO_HANDLES - if no handles are available to perform the operation</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 image, int srcX, int srcY, int srcWidth, int srcHeight, int destX, int destY, int destWidth, int destHeight, boolean simple) { - int flags = OS.PtEnter(0); - try { - if (image.memGC != null) image.memGC.flushImage(); - int drawImage = image.handle; - PhImage_t phDrawImage = new PhImage_t(); - OS.memmove(phDrawImage, drawImage, PhImage_t.sizeof); - int imgWidth = phDrawImage.size_w; - int imgHeight = phDrawImage.size_h; - if (simple) { - srcWidth = destWidth = imgWidth; - srcHeight = destHeight = imgHeight; - } else { - simple = srcX == 0 && srcY == 0 && - srcWidth == destWidth && destWidth == imgWidth && - srcHeight == destHeight && destHeight == imgHeight; - if (srcX + srcWidth > imgWidth || srcY + srcHeight > imgHeight) { - SWT.error(SWT.ERROR_INVALID_ARGUMENT); - } - } - if (srcWidth != destWidth || srcHeight != destHeight) { - drawImage = scaleImage(image, phDrawImage, srcX, srcY, srcWidth, srcHeight, destX, destY, destWidth, destHeight); - if (drawImage == 0) return; - srcX = (short)0; - srcY = (short)0; - srcWidth = (short)destWidth; - srcHeight = (short)destHeight; - OS.memmove(phDrawImage, drawImage, PhImage_t.sizeof); - } - PhPoint_t pos = new PhPoint_t(); - pos.x = (short)(destX - srcX); - pos.y = (short)(destY - srcY); - PhDim_t dim = new PhDim_t(); - dim.w = (short)Math.min(phDrawImage.size_w, srcX + srcWidth); - dim.h = (short)Math.min(phDrawImage.size_h, srcY + srcHeight); - PhRect_t clip = new PhRect_t(); - clip.ul_x = (short)destX; - clip.ul_y = (short)destY; - clip.lr_x = (short)(destX + destWidth - 1); - clip.lr_y = (short)(destY + destHeight - 1); - int prevContext = setGC(); - setGCTranslation(); - setGCClipping(); - OS.PgSetDrawMode(data.xorMode ? OS.Pg_DrawModeDSx : OS.Pg_DrawModeS); - dirtyBits |= DIRTY_XORMODE; - OS.PgSetUserClip(clip); - if (phDrawImage.palette != 0) OS.PgSetPalette(phDrawImage.palette, 0, (short)0, (short)phDrawImage.colors, OS.Pg_PALSET_SOFT, 0); - if (phDrawImage.alpha != 0) { - drawImageAlpha(image, srcX, srcY, srcWidth, srcHeight, destX, destY, destWidth, destHeight, simple, phDrawImage, drawImage, pos, dim); - } else if (image.transparentPixel != -1) { - drawImageTransparent(image, srcX, srcY, srcWidth, srcHeight, destX, destY, destWidth, destHeight, simple, phDrawImage, drawImage, pos, dim); - } else if (phDrawImage.mask_bm != 0) { - drawImageMask(image, srcX, srcY, srcWidth, srcHeight, destX, destY, destWidth, destHeight, simple, phDrawImage, drawImage, pos, dim); - } else { - drawImage(image, srcX, srcY, srcWidth, srcHeight, destX, destY, destWidth, destHeight, simple, phDrawImage, drawImage, pos, dim); - } - if (phDrawImage.palette != 0) OS.PgSetPalette(0, 0, (short)0, (short)-1, 0, 0); - OS.PgSetUserClip(null); - unsetGC(prevContext); - if (drawImage != image.handle) { - phDrawImage.flags = (byte)OS.Ph_RELEASE_IMAGE_ALL; - OS.memmove(drawImage, phDrawImage, PhImage_t.sizeof); - OS.PhReleaseImage(drawImage); - OS.free(drawImage); - } - } finally { - if (flags >= 0) OS.PtLeave(flags); - } -} -void drawImageAlpha(Image image, int srcX, int srcY, int srcWidth, int srcHeight, int destX, int destY, int destWidth, int destHeight, boolean simple, PhImage_t phImage, int imgHandle, PhPoint_t pos, PhDim_t dim) { - PgAlpha_t phAlpha = new PgAlpha_t(); - OS.memmove(phAlpha, phImage.alpha, PgAlpha_t.sizeof); - if ((phAlpha.alpha_op & OS.Pg_ALPHA_OP_SRC_GLOBAL) != 0) { - OS.PgSetAlpha(phAlpha.alpha_op, null, 0, phAlpha.src_global_alpha, phAlpha.dest_global_alpha); - OS.PgAlphaOn(); - OS.PgDrawImage(phImage.image, phImage.type, pos, dim, phImage.bpl, 0); - OS.PgAlphaOff(); - return; - } - - /* - * Feature/Bug in Photon - When drawing images with alpha blending - * enabled, there is a limitation in the size of the alpha map. - * This limitation is probably related to the draw buffer size and - * it seems to be worse when drawing to a memory context. The - * fix/workaround is to draw the image line by line. - */ - PgMap_t imageMap = new PgMap_t(); - OS.memmove(imageMap, phImage.alpha + 4, PgMap_t.sizeof); - PgMap_t lineMap = new PgMap_t(); - lineMap.dim_w = imageMap.dim_w; - lineMap.dim_h = 1; - /* - * Feature in Photon - The alpha map set in a graphics context by - * PgSetAlpha is freed when the graphics context is destroyed. - */ - lineMap.map = OS.malloc(lineMap.dim_w); - OS.PgSetAlpha(phAlpha.alpha_op, lineMap, 0, phAlpha.src_global_alpha, phAlpha.dest_global_alpha); - OS.PgAlphaOn(); - pos.y = (short)(destY); - int end = dim.h; - dim.h = (short)1; - for (int y=srcY; y<end; y+=lineMap.dim_h) { - OS.memmove(lineMap.map, imageMap.map + (imageMap.dim_w * y), lineMap.dim_w); - /* - * Bug in Photon - When drawing an image to a memory context created by - * PmMemCreateMC at a negative position, the alpha map is not offset. - */ - if (data.image != null && pos.x < 0) { - OS.memmove(lineMap.map, lineMap.map - pos.x, lineMap.dim_w + pos.x); - } - OS.PgDrawImage(phImage.image + (phImage.bpl * y), phImage.type, pos, dim, phImage.bpl, 0); - /* - * Flushing is necessary in order to change the alpha map. - */ - if (data.image != null) OS.PmMemFlush(handle, data.image.handle); - else OS.PgFlush(); - pos.y += lineMap.dim_h; - } - OS.PgAlphaOff(); -} -void drawImageTransparent(Image image, int srcX, int srcY, int srcWidth, int srcHeight, int destX, int destY, int destWidth, int destHeight, boolean simple, PhImage_t phImage, int imgHandle, PhPoint_t pos, PhDim_t dim) { - /* Generate the mask if necessary */ - if (phImage.mask_bm == 0) { - createMask(imgHandle, phImage.type, image.transparentPixel); - OS.memmove(phImage, imgHandle, PhImage_t.sizeof); - } - OS.PgDrawTImage(phImage.image, phImage.type, pos, dim, phImage.bpl, 0, phImage.mask_bm, phImage.mask_bpl); - /* Destroy the mask if there is a GC created on the image */ - if (image.memGC != null && image.handle == imgHandle) { - OS.free(phImage.mask_bm); - phImage.mask_bm = 0; - phImage.mask_bpl = 0; - OS.memmove(imgHandle, phImage, PhImage_t.sizeof); - } -} -void drawImageMask(Image image, int srcX, int srcY, int srcWidth, int srcHeight, int destX, int destY, int destWidth, int destHeight, boolean simple, PhImage_t phImage, int imgHandle, PhPoint_t pos, PhDim_t dim) { - OS.PgDrawTImage(phImage.image, phImage.type, pos, dim, phImage.bpl, 0, phImage.mask_bm, phImage.mask_bpl); -} -void drawImage(Image image, int srcX, int srcY, int srcWidth, int srcHeight, int destX, int destY, int destWidth, int destHeight, boolean simple, PhImage_t phImage, int imgHandle, PhPoint_t pos, PhDim_t dim) { - OS.PgDrawImage(phImage.image, phImage.type, pos, dim, phImage.bpl, 0); -} -static void createMask(int image, int type, int transparent) { - if ((type & OS.Pg_IMAGE_CLASS_MASK) == OS.Pg_IMAGE_CLASS_PALETTE) { - transparent = (transparent & 0xFF) | OS.Pg_INDEX_COLOR; - } else { - switch (type) { - case OS.Pg_IMAGE_DIRECT_888: - transparent = ((transparent & 0xFF) << 16) | (transparent & 0xFF00) | ((transparent & 0xFF0000) >> 16); - break; - case OS.Pg_IMAGE_DIRECT_8888: - transparent = ((transparent & 0xFF00) << 8) | ((transparent & 0xFF0000) >> 8) | ((transparent & 0xFF000000) >> 24); - break; - case OS.Pg_IMAGE_DIRECT_565: - transparent = ((transparent & 0xF800) << 8) | ((transparent & 0x7E0) << 5) | ((transparent & 0x1F) << 3); - break; - case OS.Pg_IMAGE_DIRECT_555: - transparent = ((transparent & 0x7C00) << 9) | ((transparent & 0x3E0) << 6) | ((transparent & 0x1F) << 3); - break; - case OS.Pg_IMAGE_DIRECT_444: - transparent = ((transparent & 0xF00) << 12) | ((transparent & 0xF0) << 8) | ((transparent & 0xF) << 4); - break; - } - } - OS.PhMakeTransBitmap(image, transparent); -} -static int scaleImage(Image image, PhImage_t phImage, int srcX, int srcY, int srcWidth, int srcHeight, int destX, int destY, int destWidth, int destHeight) { - PhPoint_t trans = new PhPoint_t(); - PhDim_t scale = new PhDim_t(); - scale.w = (short)srcWidth; - scale.h = (short)srcHeight; - PhPoint_t pos = new PhPoint_t(); - pos.x = (short)-srcX; - pos.y = (short)-srcY; - PhDim_t dim = new PhDim_t(); - dim.w = (short)Math.min(phImage.size_w, srcX + srcWidth); - dim.h = (short)Math.min(phImage.size_h, srcY + srcHeight); - /* - * Feature on Photon - It is only possible to draw on images of - * type Pg_IMAGE_PALETTE_BYTE and Pg_IMAGE_DIRECT_888. - */ - int type = OS.Pg_IMAGE_PALETTE_BYTE; - if ((phImage.type & OS.Pg_IMAGE_CLASS_MASK) == OS.Pg_IMAGE_CLASS_DIRECT) { - type = OS.Pg_IMAGE_DIRECT_888; - } - /* Scale the image */ - int memImage = OS.PhCreateImage(null, (short)destWidth, (short)destHeight, type, phImage.palette, phImage.colors, 0); - if (memImage == 0) return 0; - int mc = OS.PmMemCreateMC(memImage, scale, trans); - if (mc == 0) { - Image.destroyImage(memImage); - return 0; - } - int prevContext = OS.PmMemStart(mc); - OS.PgSetDrawBufferSize(DrawBufferSize); - if (phImage.palette != 0) OS.PgSetPalette(phImage.palette, 0, (short)0, (short)phImage.colors, OS.Pg_PALSET_SOFT, 0); - OS.PgDrawImage(phImage.image, phImage.type, pos, dim, phImage.bpl, 0); - if (phImage.palette != 0) OS.PgSetPalette(0, 0, (short)0, (short)-1, 0, 0); - OS.PmMemFlush(mc, memImage); - OS.PmMemStop(mc); - OS.PmMemReleaseMC(mc); - OS.PhDCSetCurrent(prevContext); - - PhImage_t phMemImage = new PhImage_t(); - OS.memmove(phMemImage, memImage, PhImage_t.sizeof); - if (image.transparentPixel != -1) { - /* Generate the mask if it was created originally */ - if (phImage.mask_bm != 0) { - createMask(memImage, phImage.type, image.transparentPixel); - } - } else if (phImage.mask_bm != 0) { - /* Scale the mask */ - int[] palette = new int[2]; - palette[0] = 0x000000; - palette[1] = 0xffffff; - int palettePtr = OS.malloc(palette.length * 4); - OS.memmove(palettePtr, palette, palette.length * 4); - /* - * Feature on Photon - It is only possible to draw on images of - * type Pg_IMAGE_PALETTE_BYTE and Pg_IMAGE_DIRECT_888. - */ - int maskImage = OS.PhCreateImage(null, (short)destWidth, (short)destHeight, OS.Pg_IMAGE_PALETTE_BYTE, palettePtr, palette.length, 0); - if (maskImage == 0) { - Image.destroyImage(memImage); - return 0; - } - mc = OS.PmMemCreateMC(maskImage, scale, trans); - if (mc == 0) { - Image.destroyImage(maskImage); - Image.destroyImage(memImage); - return 0; - } - prevContext = OS.PmMemStart(mc); - OS.PgSetDrawBufferSize(DrawBufferSize); - OS.PgSetFillColor(palette[0]); - OS.PgSetTextColor(palette[1]); - OS.PgDrawBitmap(phImage.mask_bm, OS.Pg_BACK_FILL, pos, dim, phImage.mask_bpl, 0); - OS.PmMemFlush(mc, maskImage); - OS.PmMemStop(mc); - OS.PmMemReleaseMC(mc); - OS.PhDCSetCurrent(prevContext); - OS.free(palettePtr); - - /* Transfer the mask to the scaled image */ - OS.PhMakeTransBitmap(maskImage, 0 | OS.Pg_INDEX_COLOR); - PhImage_t phMaskImage = new PhImage_t(); - OS.memmove(phMaskImage, maskImage, PhImage_t.sizeof); - phMemImage.mask_bm = phMaskImage.mask_bm; - phMemImage.mask_bpl = phMaskImage.mask_bpl; - OS.memmove(memImage, phMemImage, PhImage_t.sizeof); - - /* Release the temporary image but not the mask data */ - phMaskImage.mask_bm = 0; - phMaskImage.mask_bpl = 0; - phMaskImage.flags = (byte)OS.Ph_RELEASE_IMAGE_ALL; - OS.memmove(maskImage, phMaskImage, PhImage_t.sizeof); - OS.PhReleaseImage(maskImage); - OS.free(maskImage); - } else if (phImage.alpha != 0) { - PgAlpha_t alpha = new PgAlpha_t(); - OS.memmove(alpha, phImage.alpha, PgAlpha_t.sizeof); - int alphaPtr = OS.malloc(PgAlpha_t.sizeof); - if (alphaPtr == 0) { - Image.destroyImage(memImage); - return 0; - } - - /* Scale alpha data */ - if (alpha.src_alpha_map_map != 0) { - int[] palette = new int[256]; - for (int i = 0; i < palette.length; i++) { - palette[i] = i; - } - int palettePtr = OS.malloc(palette.length * 4); - OS.memmove(palettePtr, palette, palette.length * 4); - /* - * Feature on Photon - It is only possible to draw on images of - * type Pg_IMAGE_PALETTE_BYTE and Pg_IMAGE_DIRECT_888. - */ - int alphaImage = OS.PhCreateImage(null, (short)destWidth, (short)destHeight, OS.Pg_IMAGE_PALETTE_BYTE, palettePtr, palette.length, 0); - if (alphaImage == 0) { - OS.free(palettePtr); - OS.free(alphaPtr); - Image.destroyImage(memImage); - return 0; - } - mc = OS.PmMemCreateMC(alphaImage, scale, trans); - if (mc == 0) { - OS.free(palettePtr); - OS.free(alphaPtr); - Image.destroyImage(alphaImage); - Image.destroyImage(memImage); - return 0; - } - prevContext = OS.PmMemStart(mc); - OS.PgSetPalette(palettePtr, 0, (short)0, (short)palette.length, OS.Pg_PALSET_SOFT, 0); - OS.PgDrawImage(alpha.src_alpha_map_map, OS.Pg_IMAGE_PALETTE_BYTE, pos, dim, alpha.src_alpha_map_bpl, 0); - OS.PgSetPalette(0, 0, (short)0, (short)-1, 0, 0); - OS.PmMemFlush(mc, alphaImage); - OS.PmMemStop(mc); - OS.PmMemReleaseMC(mc); - OS.PhDCSetCurrent(prevContext); - OS.free(palettePtr); - - /* Transfer the image to the scaled image alpha data*/ - PhImage_t phAlphaImage = new PhImage_t(); - OS.memmove(phAlphaImage, alphaImage, PhImage_t.sizeof); - alpha.src_alpha_map_bpl = (short)phAlphaImage.bpl; - alpha.src_alpha_map_dim_w = (short)phAlphaImage.bpl; - alpha.src_alpha_map_dim_h = (short)phAlphaImage.size_h; - alpha.src_alpha_map_map = phAlphaImage.image; - - /* Release the temporary image but not the image data */ - phAlphaImage.image = 0; - phAlphaImage.bpl = 0; - phAlphaImage.flags = (byte)OS.Ph_RELEASE_IMAGE_ALL; - OS.memmove(alphaImage, phAlphaImage, PhImage_t.sizeof); - OS.PhReleaseImage(alphaImage); - OS.free(alphaImage); - } - - OS.memmove(alphaPtr, alpha, PgAlpha_t.sizeof); - phMemImage.alpha = alphaPtr; - OS.memmove(memImage, phMemImage, PhImage_t.sizeof); - } - return memImage; -} - -/** - * 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); - int flags = OS.PtEnter(0); - try { - int prevContext = setGC(); - setGCTranslation(); - setGCClipping(); - OS.PgDrawILine(x1, y1, x2, y2); - unsetGC(prevContext); - } finally { - if (flags >= 0) OS.PtLeave(flags); - } -} - -/** - * 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); - PhPoint_t center = new PhPoint_t(); - center.x = (short)x; center.y = (short)y; - PhPoint_t radii = new PhPoint_t(); - // Don't subtract one, so that the bottom/right edges are drawn - radii.x = (short)(x + width); radii.y = (short)(y + height); - - int flags = OS.PtEnter(0); - try { - int prevContext = setGC(); - setGCTranslation(); - setGCClipping(); - OS.PgDrawEllipse(center, radii, OS.Pg_DRAW_STROKE | OS.Pg_EXTENT_BASED); - unsetGC(prevContext); - } finally { - if (flags >= 0) OS.PtLeave(flags); - } -} - -/** - * Draws the path described by the parameter. - * <p> - * This operation requires the operating system's advanced - * graphics subsystem which may not be available on some - * platforms. - * </p> - * - * @param path the path to draw - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the parameter is null</li> - * <li>ERROR_INVALID_ARGUMENT - if the parameter has been disposed</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_NO_GRAPHICS_LIBRARY - if advanced graphics are not available</li> - * </ul> - * - * @see Path - * - * @since 3.1 - */ -public void drawPath(Path path) { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - if (path == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); - if (path.handle == 0) SWT.error(SWT.ERROR_INVALID_ARGUMENT); -} - -/** - * Draws a pixel, using the foreground color, at the specified - * point (<code>x</code>, <code>y</code>). - * <p> - * Note that the receiver's line attributes do not affect this - * operation. - * </p> - * - * @param x the point's x coordinate - * @param y the point's y coordinate - * - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - * - * @since 3.0 - */ -public void drawPoint (int x, int y) { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - int flags = OS.PtEnter(0); - try { - int prevContext = setGC(); - setGCTranslation(); - setGCClipping(); - OS.PgDrawIPixel(x, y); - unsetGC(prevContext); - } finally { - if (flags >= 0) OS.PtLeave(flags); - } -} - -/** - * 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); - - short[] points = new short[pointArray.length]; - for (int i = pointArray.length - 1; i >= 0; i--) { - points[i] = (short)pointArray[i]; - } - - int flags = OS.PtEnter(0); - try { - int prevContext = setGC(); - setGCTranslation(); - setGCClipping(); - OS.PgDrawPolygon(points, pointArray.length / 2, new PhPoint_t(), OS.Pg_DRAW_STROKE | OS.Pg_CLOSED); - unsetGC(prevContext); - } finally { - if (flags >= 0) OS.PtLeave(flags); - } -} - -/** - * 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); - - short[] points = new short[pointArray.length]; - for (int i = pointArray.length - 1; i >= 0; i--) { - points[i] = (short)pointArray[i]; - } - - int flags = OS.PtEnter(0); - try { - int prevContext = setGC(); - setGCTranslation(); - setGCClipping(); - OS.PgDrawPolygon(points, pointArray.length / 2, new PhPoint_t(), OS.Pg_DRAW_STROKE); - unsetGC(prevContext); - } finally { - if (flags >= 0) OS.PtLeave(flags); - } -} - -/** - * 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); - int flags = OS.PtEnter(0); - try { - int prevContext = setGC(); - setGCTranslation(); - setGCClipping(); - // Don't subtract one, so that the bottom/right edges are drawn - OS.PgDrawIRect(x, y, x + width, y + height, OS.Pg_DRAW_STROKE); - unsetGC(prevContext); - } finally { - if (flags >= 0) OS.PtLeave(flags); - } -} - -/** - * 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, which - * are respectively the width and height of the ellipse used to draw - * the corners. - * - * @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 width of the arc - * @param arcHeight the height of the arc - * - * @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); - PhRect_t rect = new PhRect_t(); - rect.ul_x = (short)x; rect.ul_y = (short)y; - // Don't subtract one, so that the bottom/right edges are drawn - rect.lr_x = (short)(x + width); rect.lr_y = (short)(y + height); - PhPoint_t radii = new PhPoint_t(); - radii.x = (short)(arcWidth / 2); radii.y = (short)(arcHeight / 2); - - int flags = OS.PtEnter(0); - try { - int prevContext = setGC(); - setGCTranslation(); - setGCClipping(); - OS.PgDrawRoundRect(rect, radii, OS.Pg_DRAW_STROKE); - unsetGC(prevContext); - } finally { - if (flags >= 0) OS.PtLeave(flags); - } -} - -/** - * 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); - - int drawFlags = OS.Pg_TEXT_LEFT | OS.Pg_TEXT_TOP; - if (!isTransparent) drawFlags |= OS.Pg_BACK_FILL; - byte[] buffer = Converter.wcsToMbcs(null, string, false); - - int flags = OS.PtEnter(0); - try { - int prevContext = setGC(); - setGCTranslation(); - setGCClipping(); - PhPoint_t pos = new PhPoint_t(); - pos.x = (short)x; - pos.y = (short)y; - if (!data.xorMode) { - OS.PgDrawText(buffer, buffer.length, pos, drawFlags); - } else { - if (isTransparent) { - Font font = data.font; - PhRect_t rect = new PhRect_t(); - OS.PfExtentText(rect, null, font.handle, buffer, buffer.length); - short width = (short)(rect.lr_x - rect.ul_x + 1); - short height = (short)(rect.lr_y - rect.ul_y + 1); - int image = OS.PhCreateImage(null, width, height, OS.Pg_IMAGE_DIRECT_888, 0, 0, 0); - PhDim_t dim = new PhDim_t(); - dim.w = width; - dim.h = height; - PhPoint_t point = new PhPoint_t(); - int pmMC = OS.PmMemCreateMC(image, dim, point); - if (pmMC == 0) SWT.error(SWT.ERROR_NO_HANDLES); - int prevCont = OS.PmMemStart(pmMC); - OS.PgSetTextColor(data.foreground); - OS.PgSetFont(font.handle); - pos.x = pos.y = (short)0; - OS.PgDrawText(buffer, buffer.length, pos, drawFlags); - OS.PmMemFlush(pmMC, image); - OS.PmMemStop(pmMC); - OS.PhDCSetCurrent(prevCont); - OS.PmMemReleaseMC(pmMC); - point.x = (short)x; - point.y = (short)y; - PhImage_t phImage = new PhImage_t(); - OS.memmove(phImage, image, PhImage_t.sizeof); - OS.PgSetDrawMode(OS.Pg_DrawModeDSx); - dirtyBits |= DIRTY_XORMODE; - OS.PgDrawImage(phImage.image, phImage.type, point, dim, phImage.bpl, 0); - phImage.flags = (byte)OS.Ph_RELEASE_IMAGE_ALL; - OS.memmove(image, phImage, PhImage_t.sizeof); - OS.PhReleaseImage(image); - OS.free(image); - } else { - OS.PgSetTextXORColor(data.foreground, data.background); - OS.PgSetDrawMode(OS.Pg_DrawModeS); - OS.PgDrawText(buffer, buffer.length, pos, drawFlags); - dirtyBits |= DIRTY_XORMODE | DIRTY_FOREGROUND; - } - } - unsetGC(prevContext); - } finally { - if (flags >= 0) OS.PtLeave(flags); - } -} - -/** - * 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 specifying 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); - if ((flags & ~SWT.DRAW_TRANSPARENT) == 0) { - drawString(string, x, y, (flags & SWT.DRAW_TRANSPARENT) != 0); - } else { - drawText(string, x, y, flags, true); - } -} - -Point drawText(String text, int x, int y, int flags, boolean draw) { - /* NOT DONE - inline code for performance */ - - int length = text.length(); - char[] buffer = new char[length]; - text.getChars(0, length, buffer, 0); - - /* NOT DONE - tabstops */ - int spaceWidth = stringExtent(" ").x; - int tabWidth = spaceWidth *8 + 1; - - boolean transparent = (flags & SWT.DRAW_TRANSPARENT) != 0; - int mnemonic = -1; - int start = 0, i = 0, j = 0; - int initialX = x, initialY = y; - int maxX = x, maxY = y; - while (i < length) { - char c = buffer[j] = buffer[i]; - switch (c) { - case '\t': { - if ((flags & SWT.DRAW_TAB) == 0) break; - String string = new String(buffer, start, j - start); - if (draw) drawString(string, x, y, transparent); - Point extent = stringExtent(string); - x += extent.x + tabWidth; - maxX = Math.max(x, maxX); - maxY = Math.max(y + extent.y, maxY); - start = j + 1; - break; - } - case '\n': { - if ((flags & SWT.DRAW_DELIMITER) == 0) break; - String string = new String(buffer, start, j - start); - if (draw) drawString(string, x, y, transparent); - Point extent = stringExtent(string); - maxX = Math.max(x + extent.x, maxX); - x = initialX; - y += extent.y; - maxY = Math.max(y, maxY); - start = j + 1; - break; - } - case '&': { - if ((flags & SWT.DRAW_MNEMONIC) == 0) break; - if (i + 1 == length) break; - if (buffer[i + 1] == '&') {i++; break;} - if (mnemonic == -1) { - mnemonic = i + 1; - String string = new String(buffer, start, j - start); - if (draw) drawString(string, x, y, transparent); - Point extent = stringExtent(string); - x += extent.x; - start = mnemonic; - string = new String(buffer, start, 1); - if (draw) drawString(string, x, y, transparent); - extent = stringExtent(string); - int underlineY = y + extent.y - 1; - if (draw) drawLine(x, underlineY, x + extent.x, underlineY); - x += extent.x; - maxX = Math.max(x, maxX); - maxY = Math.max(y + extent.y, maxY); - start = j + 1; - } - j--; - break; - } - } - j++; - i++; - } - if (start != j) { - String string = new String(buffer, start, j - start); - if (draw) drawString(string, x, y, transparent); - Point extent = stringExtent(string); - maxX = Math.max(x + extent.x, maxX); - maxY = Math.max(y + extent.y, maxY); - } - return new Point(maxX - initialX, maxY - initialY); -} - -/** - * 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) { - return (object == this) || ((object instanceof GC) && (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 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 arcAngle) { - 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 || arcAngle == 0) return; - if (startAngle > 0) { - if (arcAngle > 0) { - //No need to modify start angle. - arcAngle += startAngle; - } else { - int newStartAngle; - int newStopAngle = startAngle; - if (startAngle > Math.abs(arcAngle)) { - newStartAngle = startAngle - Math.abs(arcAngle); - } else { - newStartAngle = startAngle + 360 - Math.abs(arcAngle); - } - startAngle = newStartAngle; - arcAngle = newStopAngle; - } - } else { - if (arcAngle > 0) { - arcAngle = arcAngle + startAngle; - startAngle = 360 - Math.abs(startAngle); - } else { - int newStopAngle = 360 + startAngle; - startAngle = newStopAngle - Math.abs(arcAngle); - arcAngle = newStopAngle; - } - } - startAngle = (int) (startAngle * 65536 / 360); - arcAngle = (int) (arcAngle * 65536 / 360); - - PhPoint_t center = new PhPoint_t(); - center.x = (short)(x + (width / 2)); - center.y = (short)(y + (height / 2)); - PhPoint_t radii = new PhPoint_t(); - radii.x = (short)(width / 2); - radii.y = (short)(height / 2); - - int flags = OS.PtEnter(0); - try { - int prevContext = setGC(); - setGCTranslation(); - setGCClipping(); - OS.PgDrawArc(center, radii, startAngle, arcAngle, OS.Pg_ARC_PIE | OS.Pg_DRAW_FILL); - unsetGC(prevContext); - } finally { - if (flags >= 0) OS.PtLeave(flags); - } -} - -/** - * 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(int, int, int, int) - */ -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; - int fromColor = data.foreground; - int 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 = toColor; - toColor = fromColor; - fromColor = t; - } - if (fromColor == toColor) { - fillRectangle(x, y, width, height); - return; - } - PhPoint_t upperLeft = new PhPoint_t(); - upperLeft.x = (short)x; - upperLeft.y = (short)y; - PhPoint_t lowerRight = new PhPoint_t(); - lowerRight.x = (short)(x + width - 1); - lowerRight.y = (short)(y + height - 1); - int flags = OS.PtEnter(0); - try { - int prevContext = setGC(); - setGCTranslation(); - setGCClipping(); - OS.PgDrawGradient(upperLeft, lowerRight, - vertical ? OS.Pg_GRAD_VERTICAL : OS.Pg_GRAD_HORIZONTAL, OS.Pg_GRAD_LINEAR, - vertical ? height : width, fromColor, toColor, 0, 0, 0, null); - unsetGC(prevContext); - } finally { - if (flags >= 0) OS.PtLeave(flags); - } -} - -/** - * 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); - PhPoint_t center = new PhPoint_t(); - center.x = (short)x; center.y = (short)y; - PhPoint_t radii = new PhPoint_t(); - radii.x = (short)(x + width); - radii.y = (short)(y + height); - - int flags = OS.PtEnter(0); - try { - int prevContext = setGC(); - setGCTranslation(); - setGCClipping(); - OS.PgDrawEllipse(center, radii, OS.Pg_DRAW_FILL | OS.Pg_EXTENT_BASED); - unsetGC(prevContext); - } finally { - if (flags >= 0) OS.PtLeave(flags); - } -} - -/** - * Fills the path described by the parameter. - * <p> - * This operation requires the operating system's advanced - * graphics subsystem which may not be available on some - * platforms. - * </p> - * - * @param path the path to fill - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the parameter is null</li> - * <li>ERROR_INVALID_ARGUMENT - if the parameter has been disposed</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_NO_GRAPHICS_LIBRARY - if advanced graphics are not available</li> - * </ul> - * - * @see Path - * - * @since 3.1 - */ -public void fillPath (Path path) { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - if (path == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); - if (path.handle == 0) SWT.error(SWT.ERROR_INVALID_ARGUMENT); -} - -/** - * 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); - - short[] points = new short[pointArray.length]; - for (int i = pointArray.length - 1; i >= 0; i--) { - points[i] = (short)pointArray[i]; - } - - int flags = OS.PtEnter(0); - try { - int prevContext = setGC(); - setGCTranslation(); - setGCClipping(); - OS.PgDrawPolygon(points, pointArray.length / 2, new PhPoint_t(), OS.Pg_DRAW_FILL | OS.Pg_CLOSED); - unsetGC(prevContext); - } finally { - if (flags >= 0) OS.PtLeave(flags); - } -} - -/** - * 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(int, int, int, int) - */ -public void fillRectangle (int x, int y, int width, int height) { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - if (width == 0 || height == 0) return; - int flags = OS.PtEnter(0); - try { - int prevContext = setGC(); - setGCTranslation(); - setGCClipping(); - OS.PgDrawIRect(x, y, x + width - 1, y + height - 1, OS.Pg_DRAW_FILL); - unsetGC(prevContext); - } finally { - if (flags >= 0) OS.PtLeave(flags); - } -} - -/** - * Fills the interior of the specified rectangle, using the receiver's - * background color. - * - * @param rect 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(int, int, int, int) - */ -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 width of the arc - * @param arcHeight the height of the arc - * - * @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); - PhRect_t rect = new PhRect_t(); - rect.ul_x = (short)x; rect.ul_y = (short)y; - rect.lr_x = (short)(x + width - 1); rect.lr_y = (short)(y + height - 1); - PhPoint_t radii = new PhPoint_t(); - radii.x = (short)(arcWidth / 2); radii.y = (short)(arcHeight / 2); - - int flags = OS.PtEnter(0); - try { - int prevContext = setGC(); - setGCTranslation(); - setGCClipping(); - OS.PgDrawRoundRect(rect, radii, OS.Pg_DRAW_FILL); - unsetGC(prevContext); - } finally { - if (flags >= 0) OS.PtLeave(flags); - } -} - -/** - * Force outstanding drawing commands to be processed. - */ -void flushImage () { - Image image = data.image; - if (image == null) return; - int prevContext = OS.PmMemStart(handle); - OS.PmMemFlush(handle, image.handle); - OS.PmMemStop(handle); - OS.PhDCSetCurrent(prevContext); -} - -/** - * 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) { - return getCharWidth(ch); -} - -/** - * Returns <code>true</code> if receiver is using the operating system's - * advanced graphics subsystem. Otherwise, <code>false</code> is returned - * to indicate that normal graphics are in use. - * <p> - * Advanced graphics may not be installed for the operating system. In this - * case, <code>false</code> is always returned. Some operating system have - * only one graphics subsystem. If this subsystem supports advanced graphics, - * then <code>true</code> is always returned. If any graphics operation such - * as alpha, antialias, patterns, interpolation, paths, clipping or transformation - * has caused the receiver to switch from regular to advanced graphics mode, - * <code>true</code> is returned. If the receiver has been explicitly switched - * to advanced mode and this mode is supported, <code>true</code> is returned. - * </p> - * - * @return the advanced value - * - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - * - * @see #setAdvanced - * - * @since 3.1 - */ -public boolean getAdvanced() { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - return false; -} - -/** - * Returns the receiver's alpha value. The alpha value - * is between 0 (transparent) and 255 (opaque). - * - * @return the alpha value - * - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - * - * @since 3.1 - */ -public int getAlpha() { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - return 0xFF; -} - -/** - * Returns the receiver's anti-aliasing setting value, which will be - * one of <code>SWT.DEFAULT</code>, <code>SWT.OFF</code> or - * <code>SWT.ON</code>. Note that this controls anti-aliasing for all - * <em>non-text drawing</em> operations. - * - * @return the anti-aliasing setting - * - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - * - * @see #getTextAntialias - * - * @since 3.1 - */ -public int getAntialias() { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - return SWT.DEFAULT; -} - -/** - * 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); - return Color.photon_new(data.device, data.background); -} - -/** - * Returns the background pattern. The default value is - * <code>null</code>. - * - * @return the receiver's background pattern - * - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - * - * @see Pattern - * - * @since 3.1 - */ -public Pattern getBackgroundPattern() { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - return null; -} - -/** - * 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); - String string = new String(new char[] {ch}); - Point point = stringExtent(string); - return point.x; -} - -/** - * 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); - int flags = OS.PtEnter(0); - try { - PhRect_t rect = new PhRect_t(); - int rid = data.rid; - int widget = data.widget; - Image image = data.image; - if (rid == OS.Ph_DEV_RID) { - OS.PhRegionQuery (rid, null, rect, 0, 0); - } else if (widget != 0) { - OS.PtWidgetCanvas(widget, rect); - } else if (image != null) { - PhImage_t img = new PhImage_t(); - OS.memmove(img, image.handle, PhImage_t.sizeof); - rect.lr_x = (short)(img.size_w - 1); - rect.lr_y = (short)(img.size_h - 1); - } - int clipRects = data.clipRects; - if (clipRects != 0) { - int clipRectsCount = data.clipRectsCount; - int clip_ptr = OS.malloc(PhRect_t.sizeof); - OS.memmove(clip_ptr, clipRects, PhRect_t.sizeof); - for (int i = 1; i < clipRectsCount; i++) { - OS.PhRectUnion (clip_ptr, clipRects + (i * PhRect_t.sizeof)); - } - int rect_ptr = OS.malloc(PhRect_t.sizeof); - OS.memmove(rect_ptr, rect, PhRect_t.sizeof); - boolean intersect = OS.PhRectIntersect(rect_ptr, clip_ptr) != 0; - OS.memmove(rect, rect_ptr, PhRect_t.sizeof); - OS.free(rect_ptr); - OS.free(clip_ptr); - if (!intersect) return new Rectangle(0, 0, 0, 0); - } - int width = rect.lr_x - rect.ul_x + 1; - int height = rect.lr_y - rect.ul_y + 1; - return new Rectangle(rect.ul_x, rect.ul_y, width, height); - } finally { - if (flags >= 0) OS.PtLeave(flags); - } -} - -/** - * 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> - * <li>ERROR_INVALID_ARGUMENT - if the region is disposed</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.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT); - int flags = OS.PtEnter(0); - try { - if (region.handle != 0 && region.handle != Region.EMPTY_REGION) { - OS.PhFreeTiles(region.handle); - } - int clipRects = data.clipRects; - if (clipRects != 0) { - region.handle = OS.PhRectsToTiles(clipRects, data.clipRectsCount); - } else { - region.handle = OS.PhGetTile(); - PhRect_t rect = new PhRect_t (); - int rid = data.rid; - int widget = data.widget; - Image image = data.image; - if (rid == OS.Ph_DEV_RID) { - OS.PhRegionQuery (rid, null, rect, 0, 0); - } else if (widget != 0) { - OS.PtWidgetCanvas(widget, rect); - } else if (image != null) { - PhImage_t img = new PhImage_t(); - OS.memmove(img, image.handle, PhImage_t.sizeof); - rect.lr_x = (short)(img.size_w - 1); - rect.lr_y = (short)(img.size_h - 1); - } - OS.memmove(region.handle, rect, PhRect_t.sizeof); - } - } finally { - if (flags >= 0) OS.PtLeave(flags); - } -} - -/** - * Returns the receiver's fill rule, which will be one of - * <code>SWT.FILL_EVEN_ODD</code> or <code>SWT.FILL_WINDING</code>. - * - * @return the receiver's fill rule - * - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - * - * @since 3.1 - */ -public int getFillRule() { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - //TODO - implement fill rule - return SWT.FILL_EVEN_ODD; -} - -/** - * 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 data.font; -} - -/** - * 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); - FontQueryInfo info = new FontQueryInfo(); - OS.PfQueryFontInfo(data.font.handle, info); - return FontMetrics.photon_new(info); -} - -/** - * 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); - return Color.photon_new(data.device, data.foreground); -} - -/** - * Returns the foreground pattern. The default value is - * <code>null</code>. - * - * @return the receiver's foreground pattern - * - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - * - * @see Pattern - * - * @since 3.1 - */ -public Pattern getForegroundPattern() { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - return null; -} - -/** - * Returns the GCData. - * <p> - * <b>IMPORTANT:</b> This method is <em>not</em> part of the public - * API for <code>GC</code>. It is marked public only so that it - * can be shared within the packages provided by SWT. It is not - * available on all platforms, and should never be called from - * application code. - * </p> - * - * @return the receiver's GCData - * - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - * - * @see GCData - * - * @since 3.2 - * @noreference This method is not intended to be referenced by clients. - */ -public GCData getGCData() { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - return data; -} - -/** - * Returns the receiver's interpolation setting, which will be one of - * <code>SWT.DEFAULT</code>, <code>SWT.NONE</code>, - * <code>SWT.LOW</code> or <code>SWT.HIGH</code>. - * - * @return the receiver's interpolation setting - * - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - * - * @since 3.1 - */ -public int getInterpolation() { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - return SWT.DEFAULT; -} - -/** - * Returns the receiver's line attributes. - * - * @return the line attributes used for drawing lines - * - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - * - * @since 3.3 - */ -public LineAttributes getLineAttributes() { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - float[] dashes = null; - if (data.dashes != null) { - dashes = new float[data.dashes.length]; - for (int i = 0; i < dashes.length; i++) { - dashes[i] = data.dashes[i]; - } - } - return new LineAttributes(data.lineWidth, data.lineCap, data.lineJoin, data.lineStyle, dashes, 0, 10); -} - -/** - * Returns the receiver's line cap style, which will be one - * of the constants <code>SWT.CAP_FLAT</code>, <code>SWT.CAP_ROUND</code>, - * or <code>SWT.CAP_SQUARE</code>. - * - * @return the cap style used for drawing lines - * - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - * - * @since 3.1 - */ -public int getLineCap() { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - return data.lineCap; -} - -/** - * Returns the receiver's line dash style. The default value is - * <code>null</code>. - * - * @return the line dash style used for drawing lines - * - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - * - * @since 3.1 - */ -public int[] getLineDash() { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - byte[] dashList = data.dashes; - if (dashList == null) return null; - int[] dashes = new int[dashList.length]; - for (int i = 0; i < dashes.length; i++) { - dashes[i] = dashList[i] & 0xFF; - } - return dashes; -} - -/** - * Returns the receiver's line join style, which will be one - * of the constants <code>SWT.JOIN_MITER</code>, <code>SWT.JOIN_ROUND</code>, - * or <code>SWT.JOIN_BEVEL</code>. - * - * @return the join style used for drawing lines - * - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - * - * @since 3.1 - */ -public int getLineJoin() { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - return data.lineJoin; -} - -/** - * 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 the receiver's style information. - * <p> - * Note that the value which is returned by this method <em>may - * not match</em> the value which was provided to the constructor - * when the receiver was created. This can occur when the underlying - * operating system does not support a particular combination of - * requested styles. - * </p> - * - * @return the style bits - * - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - * - * @since 2.1.2 - */ -public int getStyle () { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - return data.style; -} - -/** - * Returns the receiver's text drawing anti-aliasing setting value, - * which will be one of <code>SWT.DEFAULT</code>, <code>SWT.OFF</code> or - * <code>SWT.ON</code>. Note that this controls anti-aliasing - * <em>only</em> for text drawing operations. - * - * @return the anti-aliasing setting - * - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - * - * @see #getAntialias - * - * @since 3.1 - */ -public int getTextAntialias() { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - return SWT.DEFAULT; -} - -/** - * Sets the parameter to the transform that is currently being - * used by the receiver. - * - * @param transform the destination to copy the transform into - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the parameter is null</li> - * <li>ERROR_INVALID_ARGUMENT - if the parameter has been disposed</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - * - * @see Transform - * - * @since 3.1 - */ -public void getTransform(Transform transform) { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - if (transform == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); - if (transform.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT); -} - -/** - * 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 that 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 context) { - if (data.foreground == -1) data.foreground = DefaultFore; - if (data.background == -1) data.background = DefaultBack; - if (data.font == null) data.font = data.device.systemFont; - dirtyBits = DIRTY_FOREGROUND | DIRTY_BACKGROUND | DIRTY_FONT; - - Image image = data.image; - if (image != null) { - image.memGC = this; - int prevContext = OS.PmMemStart(context); - OS.PgSetDrawBufferSize(DrawBufferSize); - OS.PmMemStop(context); - OS.PhDCSetCurrent(prevContext); - - /* - * Destroy the mask when it is generated from a transparent - * pixel since drawing on the image might change the mask. - */ - if (image.transparentPixel != -1) { - PhImage_t phImage = new PhImage_t (); - OS.memmove(phImage, image.handle, PhImage_t.sizeof); - if (phImage.mask_bm != 0) { - OS.free(phImage.mask_bm); - phImage.mask_bm = 0; - phImage.mask_bpl = 0; - OS.memmove(image.handle, phImage, PhImage_t.sizeof); - } - } - } - this.drawable = drawable; - this.data = data; - handle = context; -} - -/** - * 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); - return data.clipRects != 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; -} - -/** - * Sets the receiver to always use the operating system's advanced graphics - * subsystem for all graphics operations if the argument is <code>true</code>. - * If the argument is <code>false</code>, the advanced graphics subsystem is - * no longer used, advanced graphics state is cleared and the normal graphics - * subsystem is used from now on. - * <p> - * Normally, the advanced graphics subsystem is invoked automatically when - * any one of the alpha, antialias, patterns, interpolation, paths, clipping - * or transformation operations in the receiver is requested. When the receiver - * is switched into advanced mode, the advanced graphics subsystem performs both - * advanced and normal graphics operations. Because the two subsystems are - * different, their output may differ. Switching to advanced graphics before - * any graphics operations are performed ensures that the output is consistent. - * </p><p> - * Advanced graphics may not be installed for the operating system. In this - * case, this operation does nothing. Some operating system have only one - * graphics subsystem, so switching from normal to advanced graphics does - * nothing. However, switching from advanced to normal graphics will always - * clear the advanced graphics state, even for operating systems that have - * only one graphics subsystem. - * </p> - * - * @param advanced the new advanced graphics state - * - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - * - * @see #setAlpha - * @see #setAntialias - * @see #setBackgroundPattern - * @see #setClipping(Path) - * @see #setForegroundPattern - * @see #setLineAttributes - * @see #setInterpolation - * @see #setTextAntialias - * @see #setTransform - * @see #getAdvanced - * - * @since 3.1 - */ -public void setAdvanced(boolean advanced) { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - if (!advanced) { - setAlpha(0xFF); - setAntialias(SWT.DEFAULT); - setBackgroundPattern(null); - setClipping((Rectangle)null); - setForegroundPattern(null); - setInterpolation(SWT.DEFAULT); - setTextAntialias(SWT.DEFAULT); - setTransform(null); - } -} - -/** - * Sets the receiver's alpha value which must be - * between 0 (transparent) and 255 (opaque). - * <p> - * This operation requires the operating system's advanced - * graphics subsystem which may not be available on some - * platforms. - * </p> - * @param alpha the alpha value - * - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_NO_GRAPHICS_LIBRARY - if advanced graphics are not available</li> - * </ul> - * - * @see #getAdvanced - * @see #setAdvanced - * - * @since 3.1 - */ -public void setAlpha(int alpha) { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); -} - -/** - * Sets the receiver's anti-aliasing value to the parameter, - * which must be one of <code>SWT.DEFAULT</code>, <code>SWT.OFF</code> - * or <code>SWT.ON</code>. Note that this controls anti-aliasing for all - * <em>non-text drawing</em> operations. - * <p> - * This operation requires the operating system's advanced - * graphics subsystem which may not be available on some - * platforms. - * </p> - * - * @param antialias the anti-aliasing setting - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_INVALID_ARGUMENT - if the parameter is not one of <code>SWT.DEFAULT</code>, - * <code>SWT.OFF</code> or <code>SWT.ON</code></li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_NO_GRAPHICS_LIBRARY - if advanced graphics are not available</li> - * </ul> - * - * @see #getAdvanced - * @see #setAdvanced - * @see #setTextAntialias - * - * @since 3.1 - */ -public void setAntialias(int antialias) { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - switch (antialias) { - case SWT.DEFAULT: break; - case SWT.OFF: break; - case SWT.ON: - break; - default: - SWT.error(SWT.ERROR_INVALID_ARGUMENT); - } -} - -/** - * 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; - dirtyBits |= DIRTY_BACKGROUND; -} - -/** - * Sets the background pattern. The default value is <code>null</code>. - * <p> - * This operation requires the operating system's advanced - * graphics subsystem which may not be available on some - * platforms. - * </p> - * - * @param pattern the new background pattern - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_INVALID_ARGUMENT - if the parameter has been disposed</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_NO_GRAPHICS_LIBRARY - if advanced graphics are not available</li> - * </ul> - * - * @see Pattern - * @see #getAdvanced - * @see #setAdvanced - * - * @since 3.1 - */ -public void setBackgroundPattern (Pattern pattern) { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - if (pattern == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); - if (pattern.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT); -} - -/** - * 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 (width < 0) { - x = x + width; - width = -width; - } - if (height < 0) { - y = y + height; - height = -height; - } - int clipRects = data.clipRects; - if (clipRects != 0) - OS.free(clipRects); - clipRects = OS.malloc(PhRect_t.sizeof); - int clipRectsCount = 1; - PhRect_t rect = new PhRect_t(); - rect.ul_x = (short)x; - rect.ul_y = (short)y; - rect.lr_x = (short)(x + width - 1); - rect.lr_y = (short)(y + height - 1); - OS.memmove(clipRects, rect, PhRect_t.sizeof); - data.clipRects = clipRects; - data.clipRectsCount = clipRectsCount; - dirtyBits |= DIRTY_CLIPPING; -} - -/** - * Sets the area of the receiver which can be changed - * by drawing operations to the path specified - * by the argument. - * <p> - * This operation requires the operating system's advanced - * graphics subsystem which may not be available on some - * platforms. - * </p> - * - * @param path the clipping path. - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_INVALID_ARGUMENT - if the path has been disposed</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_NO_GRAPHICS_LIBRARY - if advanced graphics are not available</li> - * </ul> - * - * @see Path - * @see #getAdvanced - * @see #setAdvanced - * - * @since 3.1 - */ -public void setClipping(Path path) { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - if (path != null && path.isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); -} - -/** - * Sets the area of the receiver which can be changed - * by drawing operations to the rectangular area specified - * by the argument. Specifying <code>null</code> for the - * rectangle reverts the receiver's clipping area to its - * original value. - * - * @param rect the clipping rectangle or <code>null</code> - * - * @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) { - int clipRects = data.clipRects; - if (clipRects != 0) - OS.free(clipRects); - data.clipRects = data.clipRectsCount = 0; - dirtyBits |= DIRTY_CLIPPING; - } else { - 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. Specifying <code>null</code> for the - * region reverts the receiver's clipping area to its - * original value. - * - * @param region the clipping region or <code>null</code> - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_INVALID_ARGUMENT - if the region has been disposed</li> - * </ul> - * @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 && region.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT); - int clipRects = data.clipRects; - int clipRectsCount = data.clipRectsCount; - if (clipRects != 0) - OS.free(clipRects); - if (region == null || region.handle == 0) { - clipRects = clipRectsCount = 0; - } else if (region.handle == Region.EMPTY_REGION) { - clipRects = OS.malloc(PhRect_t.sizeof); - OS.memset(clipRects, 0, PhRect_t.sizeof); - clipRectsCount = 1; - } else { - int[] clip_rects_count = new int[1]; - clipRects = OS.PhTilesToRects(region.handle, clip_rects_count); - clipRectsCount = clip_rects_count[0]; - } - data.clipRects = clipRects; - data.clipRectsCount = clipRectsCount; - dirtyBits |= DIRTY_CLIPPING; -} - -/** - * Sets the receiver's fill rule to the parameter, which must be one of - * <code>SWT.FILL_EVEN_ODD</code> or <code>SWT.FILL_WINDING</code>. - * - * @param rule the new fill rule - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_INVALID_ARGUMENT - if the rule is not one of <code>SWT.FILL_EVEN_ODD</code> - * or <code>SWT.FILL_WINDING</code></li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - * - * @since 3.1 - */ -public void setFillRule(int rule) { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - switch (rule) { - case SWT.FILL_WINDING: - case SWT.FILL_EVEN_ODD: - break; - default: - SWT.error(SWT.ERROR_INVALID_ARGUMENT); - } - //TODO - implement fill rule -} - -/** - * 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 && font.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT); - data.font = font == null ? data.device.systemFont : font; - dirtyBits |= DIRTY_FONT; -} - -/** - * 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; - dirtyBits |= DIRTY_FOREGROUND; -} - -/** - * Sets the receiver's interpolation setting to the parameter, which - * must be one of <code>SWT.DEFAULT</code>, <code>SWT.NONE</code>, - * <code>SWT.LOW</code> or <code>SWT.HIGH</code>. - * <p> - * This operation requires the operating system's advanced - * graphics subsystem which may not be available on some - * platforms. - * </p> - * - * @param interpolation the new interpolation setting - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_INVALID_ARGUMENT - if the rule is not one of <code>SWT.DEFAULT</code>, - * <code>SWT.NONE</code>, <code>SWT.LOW</code> or <code>SWT.HIGH</code> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_NO_GRAPHICS_LIBRARY - if advanced graphics are not available</li> - * </ul> - * - * @see #getAdvanced - * @see #setAdvanced - * - * @since 3.1 - */ -public void setInterpolation(int interpolation) { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - switch (interpolation) { - case SWT.DEFAULT: - case SWT.NONE: - case SWT.LOW: - case SWT.HIGH: - break; - default: - SWT.error(SWT.ERROR_INVALID_ARGUMENT); - } -} - -/** - * Sets the foreground pattern. The default value is <code>null</code>. - * <p> - * This operation requires the operating system's advanced - * graphics subsystem which may not be available on some - * platforms. - * </p> - * @param pattern the new foreground pattern - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_INVALID_ARGUMENT - if the parameter has been disposed</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_NO_GRAPHICS_LIBRARY - if advanced graphics are not available</li> - * </ul> - * - * @see Pattern - * @see #getAdvanced - * @see #setAdvanced - * - * @since 3.1 - */ -public void setForegroundPattern (Pattern pattern) { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - if (pattern == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); - if (pattern.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT); -} - -/** - * Sets the receiver's line attributes. - * <p> - * This operation requires the operating system's advanced - * graphics subsystem which may not be available on some - * platforms. - * </p> - * @param attributes the line attributes - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the attributes is null</li> - * <li>ERROR_INVALID_ARGUMENT - if any of the line attributes is not valid</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_NO_GRAPHICS_LIBRARY - if advanced graphics are not available</li> - * </ul> - * - * @see LineAttributes - * @see #getAdvanced - * @see #setAdvanced - * - * @since 3.3 - */ -public void setLineAttributes(LineAttributes attributes) { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - if (attributes == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); - //TODO - implement setLineAttributes -} - -/** - * Sets the receiver's line cap style to the argument, which must be one - * of the constants <code>SWT.CAP_FLAT</code>, <code>SWT.CAP_ROUND</code>, - * or <code>SWT.CAP_SQUARE</code>. - * - * @param cap the cap style to be used for drawing lines - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_INVALID_ARGUMENT - if the style is not valid</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - * - * @since 3.1 - */ -public void setLineCap(int cap) { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - switch (cap) { - case SWT.CAP_ROUND: - case SWT.CAP_FLAT: - case SWT.CAP_SQUARE: - break; - default: - SWT.error(SWT.ERROR_INVALID_ARGUMENT); - } - data.lineCap = cap; - dirtyBits |= DIRTY_LINECAP; -} - -/** - * Sets the receiver's line dash style to the argument. The default - * value is <code>null</code>. If the argument is not <code>null</code>, - * the receiver's line style is set to <code>SWT.LINE_CUSTOM</code>, otherwise - * it is set to <code>SWT.LINE_SOLID</code>. - * - * @param dashes the dash style to be used for drawing lines - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_INVALID_ARGUMENT - if any of the values in the array is less than or equal 0</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - * - * @since 3.1 - */ -public void setLineDash(int[] dashes) { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - if (dashes != null && dashes.length != 0) { - byte[] dashList = new byte[dashes.length]; - for (int i = 0; i < dashes.length; i++) { - dashList[i] = (byte)dashes[i]; - } - data.dashes = dashList; - data.lineStyle = SWT.LINE_CUSTOM; - } else { - data.dashes = null; - data.lineStyle = SWT.LINE_SOLID; - } - dirtyBits |= DIRTY_LINESTYLE; -} - -/** - * Sets the receiver's line join style to the argument, which must be one - * of the constants <code>SWT.JOIN_MITER</code>, <code>SWT.JOIN_ROUND</code>, - * or <code>SWT.JOIN_BEVEL</code>. - * - * @param join the join style to be used for drawing lines - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_INVALID_ARGUMENT - if the style is not valid</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - * - * @since 3.1 - */ -public void setLineJoin(int join) { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - switch (join) { - case SWT.JOIN_MITER: - case SWT.JOIN_ROUND: - case SWT.JOIN_BEVEL: - break; - default: - SWT.error(SWT.ERROR_INVALID_ARGUMENT); - } - data.lineJoin = join; - dirtyBits |= DIRTY_LINEJOIN; -} - -/** - * 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 IllegalArgumentException <ul> - * <li>ERROR_INVALID_ARGUMENT - if the style is not valid</li> - * </ul> - * @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); - switch (lineStyle) { - case SWT.LINE_SOLID: - case SWT.LINE_DASH: - case SWT.LINE_DOT: - case SWT.LINE_DASHDOT: - case SWT.LINE_DASHDOTDOT: - break; - case SWT.LINE_CUSTOM: - if (data.dashes == null) lineStyle = SWT.LINE_SOLID; - break; - default: - SWT.error (SWT.ERROR_INVALID_ARGUMENT); - return; - } - data.lineStyle = lineStyle; - dirtyBits |= DIRTY_LINESTYLE; -} - -/** - * 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. - * <p> - * Note that line width of zero is used as a hint to - * indicate that the fastest possible line drawing - * algorithms should be used. This means that the - * output may be different from line width one. - * </p> - * - * @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 lineWidth) { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - data.lineWidth = lineWidth; - dirtyBits |= DIRTY_LINEWIDTH; -} - -int setGC() { - int result = 0; - if (data.image != null) result = OS.PmMemStart(handle); - else if (data.rid == OS.Ph_DEV_RID || data.widget != 0) result = OS.PgSetGC(handle); - else return result; - - if (dirtyBits != 0) { - if ((dirtyBits & DIRTY_BACKGROUND) != 0) { - OS.PgSetFillColor(data.background); - } - if ((dirtyBits & DIRTY_FOREGROUND) != 0) { - int foreColor = data.foreground; - OS.PgSetStrokeColor(foreColor); - OS.PgSetTextColor(foreColor); - } - if ((dirtyBits & DIRTY_FONT) != 0) { - Font font = data.font; - OS.PfLoadMetrics(font.handle); - OS.PgSetFont(font.handle); - } - if ((dirtyBits & DIRTY_CLIPPING) != 0) { - OS.PgSetMultiClip(data.clipRectsCount, data.clipRects); - } - if ((dirtyBits & DIRTY_LINECAP) != 0) { - int cap_style = 0; - switch (data.lineCap) { - case SWT.CAP_ROUND:cap_style = OS.Pg_ROUND_CAP; break; - case SWT.CAP_FLAT:cap_style = OS.Pg_BUTT_CAP; break; - case SWT.CAP_SQUARE:cap_style = OS.Pg_SQUARE_CAP; break; - } - OS.PgSetStrokeCap(cap_style); - } - if ((dirtyBits & DIRTY_LINEJOIN) != 0) { - int join_style = 0; - switch (data.lineJoin) { - case SWT.JOIN_ROUND:join_style = OS.Pg_ROUND_JOIN; break; - case SWT.JOIN_MITER:join_style = OS.Pg_MITER_JOIN; break; - case SWT.JOIN_BEVEL:join_style = OS.Pg_BEVEL_JOIN; break; - } - OS.PgSetStrokeJoin(join_style); - } - if ((dirtyBits & DIRTY_LINESTYLE) != 0) { - byte[] dashList = null; - switch (data.lineStyle) { - case SWT.LINE_SOLID: dashList = DashList[0]; break; - case SWT.LINE_DASH: dashList = DashList[1]; break; - case SWT.LINE_DOT: dashList = DashList[2]; break; - case SWT.LINE_DASHDOT: dashList = DashList[3]; break; - case SWT.LINE_DASHDOTDOT: dashList = DashList[4]; break; - case SWT.LINE_CUSTOM: dashList = data.dashes; break; - } - OS.PgSetStrokeDash(dashList, dashList.length, 0x10000); - } - if ((dirtyBits & DIRTY_LINEWIDTH) != 0) { - OS.PgSetStrokeWidth(data.lineWidth); - } - if ((dirtyBits & DIRTY_XORMODE) != 0) { - OS.PgSetDrawMode(data.xorMode ? OS.Pg_DRAWMODE_XOR : OS.Pg_DRAWMODE_OPAQUE); - } - dirtyBits = 0; - } - return result; -} - -void setGCClipping() { - int rid = data.rid; - int widget = data.widget; - if(OS.QNX_MAJOR >= 6 && OS.QNX_MINOR >= 3) - { - if(widget > 0) - { - int visibleTiles = OS.PtGetVisibleTiles(widget); - if(data.clipRects != 0) - { - int gcClip = OS.PhRectsToTiles(data.clipRects, data.clipRectsCount); - PhPoint_t pt = new PhPoint_t(); - PhRect_t tran_rect = new PhRect_t(); - OS.PtWidgetExtent(widget, tran_rect); - OS.PtWidgetOffset(widget, pt); - pt.x += tran_rect.ul_x; - pt.y += tran_rect.ul_y; - OS.PhTranslateTiles(gcClip, pt); - int inter = OS.PhIntersectTilings(visibleTiles, gcClip, new short[1]); - if(inter != 0) - { - OS.PgSetMultiClipTiles(inter); - OS.free(inter); - } - OS.free(gcClip); - } else - { - OS.PgSetMultiClipTiles(visibleTiles); - } - OS.free(visibleTiles); - } - return; - } - if(rid == 1) - OS.PgSetRegion(rid); - else - if(widget != 0) - OS.PgSetRegion(OS.PtWidgetRid(widget)); - else - if(data.image != null) - return; - if(widget == 0) - return; - OS.PgSetMultiClip(data.clipRectsCount, data.clipRects); - int clip_tile = getClipping(widget, data.topWidget, true, true, null); - int clip_rects_count[] = new int[1]; - int clip_rects = OS.PhTilesToRects(clip_tile, clip_rects_count); - OS.PhFreeTiles(clip_tile); - if(clip_rects_count[0] == 0) - { - clip_rects_count[0] = 1; - OS.free(clip_rects); - clip_rects = OS.malloc(8); - OS.memset(clip_rects, 0, 8); - } - OS.PgSetClipping((short)clip_rects_count[0], clip_rects); - OS.free(clip_rects); -} - -void setGCTranslation() { - PhPoint_t pt = new PhPoint_t (); - PhRect_t tran_rect = new PhRect_t(); - if (data.widget <= 0 ) return; - OS.PtWidgetExtent(data.widget, tran_rect) ; - OS.PtWidgetOffset(data.widget, pt); - pt.x += tran_rect.ul_x; - pt.y += tran_rect.ul_y; - OS.PgSetTranslation(pt,0); -} - -int getClipping(int widget, int topWidget, boolean clipChildren, boolean clipSiblings, int[] child_tiles) { - if(OS.QNX_MAJOR >= 6 && OS.QNX_MINOR >= 3) - if(widget > 0) - { - int visTiles = OS.PtGetVisibleTiles(widget); - PhPoint_t pt = new PhPoint_t(); - PhRect_t tranRect = new PhRect_t(); - OS.PtWidgetExtent(widget, tranRect); - OS.PtWidgetOffset(widget, pt); - pt.x += tranRect.ul_x; - pt.y += tranRect.ul_y; - int tranPoint = OS.malloc(4); - OS.memmove(tranPoint, pt, 4); - OS.PhDeTranslateTiles(visTiles, tranPoint); - return visTiles; - } else - { - return 0; - } - int child_tile = 0; - int widget_tile = OS.PhGetTile(); - PhRect_t rect = new PhRect_t(); - int args[] = { - 1006, 0, 0, 2015, 0, 0 - }; - if(clipSiblings && OS.PtWidgetClass(topWidget) != OS.PtWindow()) - { - for(int temp_widget = topWidget; (temp_widget = OS.PtWidgetBrotherInFront(temp_widget)) != 0;) - if(OS.PtWidgetIsRealized(temp_widget)) - { - int tile = OS.PhGetTile(); - if(child_tile == 0) - child_tile = tile; - else - child_tile = OS.PhAddMergeTiles(tile, child_tile, null); - OS.PtWidgetExtent(temp_widget, tile); - args[1] = args[4] = 0; - OS.PtGetResources(temp_widget, args.length / 3, args); - if((args[1] & 0x100) != 0) - { - int basic_flags = args[4]; - OS.memmove(rect, tile, 8); - if((basic_flags & 1) != 0) - rect.ul_y++; - if((basic_flags & 2) != 0) - rect.lr_y--; - if((basic_flags & 8) != 0) - rect.ul_x++; - if((basic_flags & 4) != 0) - rect.lr_x--; - OS.memmove(tile, rect, 8); - } - } - - OS.PtWidgetCanvas(topWidget, widget_tile); - OS.PhDeTranslateTiles(child_tile, widget_tile); - } - if(clipChildren) - { - for(int temp_widget = OS.PtWidgetChildBack(widget); temp_widget != 0; temp_widget = OS.PtWidgetBrotherInFront(temp_widget)) - if(OS.PtWidgetIsRealized(temp_widget)) - { - int tile = OS.PhGetTile(); - if(child_tile == 0) - child_tile = tile; - else - child_tile = OS.PhAddMergeTiles(tile, child_tile, null); - OS.PtWidgetExtent(temp_widget, tile); - args[1] = args[4] = 0; - OS.PtGetResources(temp_widget, args.length / 3, args); - if((args[1] & 0x100) != 0) - { - int basic_flags = args[4]; - OS.memmove(rect, tile, 8); - if((basic_flags & 1) != 0) - rect.ul_y++; - if((basic_flags & 2) != 0) - rect.lr_y--; - if((basic_flags & 8) != 0) - rect.ul_x++; - if((basic_flags & 4) != 0) - rect.lr_x--; - OS.memmove(tile, rect, 8); - } - } - - } - OS.PtWidgetCanvas(widget, widget_tile); - OS.PhDeTranslateTiles(widget_tile, widget_tile); - if(child_tile != 0) - { - if(child_tiles != null) - child_tiles[0] = OS.PhIntersectTilings(widget_tile, child_tile, new short[1]); - int clip_tile = OS.PhClipTilings(widget_tile, child_tile, null); - OS.PhFreeTiles(child_tile); - return clip_tile; - } else - { - return widget_tile; - } -} - -/** - * Sets the receiver's text anti-aliasing value to the parameter, - * which must be one of <code>SWT.DEFAULT</code>, <code>SWT.OFF</code> - * or <code>SWT.ON</code>. Note that this controls anti-aliasing only - * for all <em>text drawing</em> operations. - * <p> - * This operation requires the operating system's advanced - * graphics subsystem which may not be available on some - * platforms. - * </p> - * - * @param antialias the anti-aliasing setting - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_INVALID_ARGUMENT - if the parameter is not one of <code>SWT.DEFAULT</code>, - * <code>SWT.OFF</code> or <code>SWT.ON</code></li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_NO_GRAPHICS_LIBRARY - if advanced graphics are not available</li> - * </ul> - * - * @see #getAdvanced - * @see #setAdvanced - * @see #setAntialias - * - * @since 3.1 - */ -public void setTextAntialias(int antialias) { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - switch (antialias) { - case SWT.DEFAULT: break; - case SWT.OFF: break; - case SWT.ON: break; - default: - SWT.error(SWT.ERROR_INVALID_ARGUMENT); - } -} - -/** - * Sets the transform that is currently being used by the receiver. If - * the argument is <code>null</code>, the current transform is set to - * the identity transform. - * <p> - * This operation requires the operating system's advanced - * graphics subsystem which may not be available on some - * platforms. - * </p> - * - * @param transform the transform to set - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_INVALID_ARGUMENT - if the parameter has been disposed</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_NO_GRAPHICS_LIBRARY - if advanced graphics are not available</li> - * </ul> - * - * @see Transform - * @see #getAdvanced - * @see #setAdvanced - * - * @since 3.1 - */ -public void setTransform(Transform transform) { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - if (transform != null && transform.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT); -} - -/** - * 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. - * <p> - * Note that this mode in fundamentally unsupportable on certain - * platforms, notably Carbon (Mac OS X). Clients that want their - * code to run on all platforms need to avoid this method. - * </p> - * - * @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> - * - * @deprecated this functionality is not supported on some platforms - */ -public void setXORMode(boolean xor) { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - data.xorMode = xor; - dirtyBits |= DIRTY_XORMODE; -} - -/** - * 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); - PhRect_t rect = new PhRect_t(); - int size = string.length(); - char[] buffer = new char[size]; - string.getChars(0, size, buffer, 0); - - int flags = OS.PtEnter(0); - try { - OS.PfExtentWideText(rect, null, data.font.handle, buffer, size * 2); - } finally { - if (flags >= 0) OS.PtLeave(flags); - } - - int width; - if (size == 0) width = 0; - else width = rect.lr_x - (rect.ul_x < 0 ? rect.ul_x : 0) + 1; - int height = rect.lr_y - rect.ul_y + 1; - return new Point(width, height); -} - -/** - * 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 specifying 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 ((flags & ~SWT.DRAW_TRANSPARENT) == 0 || string.length() == 0) { - return stringExtent(string); - } else { - return drawText(string, 0, 0, flags, 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 + "}"; -} - -void unsetGC(int prevContext) { - Image image = data.image; - if (image != null) { -// OS.PmMemFlush(handle, image.handle); - OS.PmMemStop(handle); - OS.PhDCSetCurrent(prevContext); - } else if (data.rid == OS.Ph_DEV_RID || data.widget != 0) { - OS.PgSetGC(prevContext); -// OS.PgFlush(); - } -} - -public static GC photon_new(Drawable drawable, GCData data) { - GC gc = new GC(); - int context = drawable.internal_new_GC(data); - gc.device = data.device; - gc.init(drawable, data, context); - return gc; -} - -} |