diff options
Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/graphics/GC.java')
| -rw-r--r-- | bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/graphics/GC.java | 3652 |
1 files changed, 0 insertions, 3652 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/graphics/GC.java b/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/graphics/GC.java deleted file mode 100644 index cbe5b6d33d..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/graphics/GC.java +++ /dev/null @@ -1,3652 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2000, 2006 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.cairo.*; -import org.eclipse.swt.internal.gtk.*; -import org.eclipse.swt.internal.*; -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> - * 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 - */ -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 /*long*/ handle; - - Drawable drawable; - GCData data; - - static final int[] LINE_DOT = new int[]{1, 1}; - static final int[] LINE_DASH = new int[]{3, 1}; - static final int[] LINE_DASHDOT = new int[]{3, 1, 1, 1}; - static final int[] LINE_DASHDOTDOT = new int[]{3, 1, 1, 1, 1, 1}; - static final int[] LINE_DOT_ZERO = new int[]{3, 3}; - static final int[] LINE_DASH_ZERO = new int[]{18, 6}; - static final int[] LINE_DASHDOT_ZERO = new int[]{9, 6, 3, 6}; - static final int[] LINE_DASHDOTDOT_ZERO = new int[]{9, 3, 3, 3, 3, 3}; - -GC() { -} - -/** - * Constructs a new instance of this class which has been - * configured to draw on the specified drawable. Sets the - * foreground and background color in the GC to match those - * in the drawable. - * <p> - * You must dispose the graphics context when it is no longer required. - * </p> - * @param drawable the drawable to draw on - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the drawable is null</li> - * <li>ERROR_NULL_ARGUMENT - if there is no current device</li> - * <li>ERROR_INVALID_ARGUMENT - * - if the drawable is an image that is not a bitmap or an icon - * - if the drawable is an image or printer that is already selected - * into another graphics context</li> - * </ul> - * @exception SWTError <ul> - * <li>ERROR_NO_HANDLES if a handle could not be obtained for GC creation</li> - * </ul> - */ -public GC(Drawable drawable) { - this(drawable, 0); -} - -/** - * Constructs a new instance of this class which has been - * configured to draw on the specified drawable. Sets the - * foreground and background color in the GC to match those - * in the drawable. - * <p> - * You must dispose the graphics context when it is no longer required. - * </p> - * - * @param drawable the drawable to draw on - * @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> - * </ul> - * - * @since 2.1.2 - */ -public GC(Drawable drawable, int style) { - if (drawable == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); - GCData data = new GCData(); - data.style = checkStyle(style); - int /*long*/ gdkGC = 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, gdkGC); - if (device.tracking) device.new_Object(this); -} - -static void addCairoString(int /*long*/ cairo, String string, float x, float y, Font font) { - byte[] buffer = Converter.wcsToMbcs(null, string, true); - if (OS.GTK_VERSION >= OS.VERSION(2, 8, 0)) { - int /*long*/ layout = OS.pango_cairo_create_layout(cairo); - if (layout == 0) SWT.error(SWT.ERROR_NO_HANDLES); - OS.pango_layout_set_text(layout, buffer, -1); - OS.pango_layout_set_font_description(layout, font.handle); - Cairo.cairo_move_to(cairo, x, y); - OS.pango_cairo_layout_path(cairo, layout); - OS.g_object_unref(layout); - } else { - GC.setCairoFont(cairo, font); - cairo_font_extents_t extents = new cairo_font_extents_t(); - Cairo.cairo_font_extents(cairo, extents); - double baseline = y + extents.ascent; - Cairo.cairo_move_to(cairo, x, baseline); - Cairo.cairo_text_path(cairo, buffer); - } -} - -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); -} - -public static GC gtk_new(Drawable drawable, GCData data) { - GC gc = new GC(); - int /*long*/ gdkGC = drawable.internal_new_GC(data); - gc.device = data.device; - gc.init(drawable, data, gdkGC); - return gc; -} - -/** - * 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); - Rectangle rect = image.getBounds(); - int /*long*/ gdkGC = OS.gdk_gc_new(image.pixmap); - if (gdkGC == 0) SWT.error(SWT.ERROR_NO_HANDLES); - OS.gdk_gc_set_subwindow(gdkGC, OS.GDK_INCLUDE_INFERIORS); - OS.gdk_draw_drawable(image.pixmap, gdkGC, data.drawable, x, y, 0, 0, rect.width, rect.height); - OS.g_object_unref(gdkGC); -} - -/** - * 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 srcX, int srcY, int width, int height, int destX, int destY) { - copyArea(srcX, srcY, 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 srcX, int srcY, 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 - srcX, deltaY = destY - srcY; - if (deltaX == 0 && deltaY == 0) return; - int /*long*/ drawable = data.drawable; - if (data.image == null && paint) OS.gdk_gc_set_exposures(handle, true); - OS.gdk_draw_drawable(drawable, handle, drawable, srcX, srcY, destX, destY, width, height); - if (data.image == null & paint) { - OS.gdk_gc_set_exposures(handle, false); - boolean disjoint = (destX + width < srcX) || (srcX + width < destX) || (destY + height < srcY) || (srcY + height < destY); - GdkRectangle rect = new GdkRectangle (); - if (disjoint) { - rect.x = srcX; - rect.y = srcY; - rect.width = width; - rect.height = height; - OS.gdk_window_invalidate_rect (drawable, rect, false); -// OS.gdk_window_clear_area_e(drawable, srcX, srcY, width, height); - } else { - if (deltaX != 0) { - int newX = destX - deltaX; - if (deltaX < 0) newX = destX + width; - rect.x = newX; - rect.y = srcY; - rect.width = Math.abs(deltaX); - rect.height = height; - OS.gdk_window_invalidate_rect (drawable, rect, false); -// OS.gdk_window_clear_area_e(drawable, newX, srcY, Math.abs(deltaX), height); - } - if (deltaY != 0) { - int newY = destY - deltaY; - if (deltaY < 0) newY = destY + height; - rect.x = srcX; - rect.y = newY; - rect.width = width; - rect.height = Math.abs(deltaY); - OS.gdk_window_invalidate_rect (drawable, rect, false); -// OS.gdk_window_clear_area_e(drawable, srcX, newY, width, Math.abs(deltaY)); - } - } - } -} - -void createLayout() { - int /*long*/ context = OS.gdk_pango_context_get(); - if (context == 0) SWT.error(SWT.ERROR_NO_HANDLES); - data.context = context; - int /*long*/ layout = OS.pango_layout_new(context); - if (layout == 0) SWT.error(SWT.ERROR_NO_HANDLES); - data.layout = layout; - OS.pango_context_set_language(context, OS.gtk_get_default_language()); - OS.pango_context_set_base_dir(context, OS.PANGO_DIRECTION_LTR); - OS.gdk_pango_context_set_colormap(context, OS.gdk_colormap_get_system()); - if (OS.GTK_VERSION >= OS.VERSION(2, 4, 0)) { - OS.pango_layout_set_auto_dir(layout, false); - } - int /*long*/ font = data.font; - if (font != 0) OS.pango_layout_set_font_description(layout, font); -} - -void disposeLayout() { - data.string = null; - if (data.context != 0) OS.g_object_unref(data.context); - if (data.layout != 0) OS.g_object_unref(data.layout); - data.layout = data.context = 0; -} - -/** - * Disposes of the operating system resources associated with - * the graphics context. Applications must dispose of all GCs - * which they allocate. - */ -public void dispose() { - if (handle == 0) return; - if (data.device.isDisposed()) return; - - int /*long*/ cairo = data.cairo; - if (cairo != 0) Cairo.cairo_destroy(cairo); - data.cairo = 0; - - /* Free resources */ - int /*long*/ clipRgn = data.clipRgn; - if (clipRgn != 0) OS.gdk_region_destroy(clipRgn); - Image image = data.image; - if (image != null) { - image.memGC = null; - if (image.transparentPixel != -1) image.createMask(); - } - - disposeLayout(); - - /* Dispose the GC */ - Device device = data.device; - drawable.internal_dispose_GC(handle, data); - - data.drawable = data.clipRgn = 0; - drawable = null; - handle = 0; - data.image = null; - data.string = null; - if (device.tracking) device.dispose_Object(this); - data.device = null; - data = null; -} - -/** - * 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; - int /*long*/ cairo = data.cairo; - if (cairo != 0) { - float offset = data.lineWidth == 0 || (data.lineWidth % 2) == 1 ? 0.5f : 0f; - if (width == height) { - if (arcAngle >= 0) { - Cairo.cairo_arc_negative(cairo, x + offset + width / 2f, y + offset + height / 2f, width / 2f, -startAngle * (float)Compatibility.PI / 180, -(startAngle + arcAngle) * (float)Compatibility.PI / 180); - } else { - Cairo.cairo_arc(cairo, x + offset + width / 2f, y + offset + height / 2f, width / 2f, -startAngle * (float)Compatibility.PI / 180, -(startAngle + arcAngle) * (float)Compatibility.PI / 180); - } - } else { - Cairo.cairo_save(cairo); - Cairo.cairo_translate(cairo, x + offset + width / 2f, y + offset + height / 2f); - Cairo.cairo_scale(cairo, width / 2f, height / 2f); - if (arcAngle >= 0) { - Cairo.cairo_arc_negative(cairo, 0, 0, 1, -startAngle * (float)Compatibility.PI / 180, -(startAngle + arcAngle) * (float)Compatibility.PI / 180); - } else { - Cairo.cairo_arc(cairo, 0, 0, 1, -startAngle * (float)Compatibility.PI / 180, -(startAngle + arcAngle) * (float)Compatibility.PI / 180); - } - Cairo.cairo_restore(cairo); - } - Cairo.cairo_stroke(cairo); - return; - } - OS.gdk_draw_arc(data.drawable, handle, 0, x, y, width, height, startAngle * 64, arcAngle * 64); -} - -/** - * 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); - /* - * Feature in GTK. The function gtk_widget_get_default_style() - * can't be used here because gtk_paint_focus() uses GCs, which - * are not valid in the default style. The fix is to use a style - * from a widget. - */ - int /*long*/ style = OS.gtk_widget_get_style(data.device.shellHandle); - OS.gtk_paint_focus(style, data.drawable, OS.GTK_STATE_NORMAL, null, data.device.shellHandle, new byte[1], x, y, width, height); -} - -/** - * 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 srcImage, int srcX, int srcY, int srcWidth, int srcHeight, int destX, int destY, int destWidth, int destHeight, boolean simple) { - int[] width = new int[1]; - int[] height = new int[1]; - OS.gdk_drawable_get_size(srcImage.pixmap, width, height); - int imgWidth = width[0]; - int imgHeight = height[0]; - 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); - } - } - int /*long*/ cairo = data.cairo; - if (cairo != 0) { - if (data.alpha != 0) { - srcImage.createSurface(); - Cairo.cairo_save(cairo); - Cairo.cairo_rectangle(cairo, destX + 0.5, destY + 0.5, destWidth, destHeight); - Cairo.cairo_clip(cairo); - Cairo.cairo_translate(cairo, destX - srcX + 0.5, destY - srcY + 0.5); - if (srcWidth != destWidth || srcHeight != destHeight) { - Cairo.cairo_scale(cairo, destWidth / (float)srcWidth, destHeight / (float)srcHeight); - } - int filter = Cairo.CAIRO_FILTER_GOOD; - switch (data.interpolation) { - case SWT.DEFAULT: filter = Cairo.CAIRO_FILTER_GOOD; break; - case SWT.NONE: filter = Cairo.CAIRO_FILTER_NEAREST; break; - case SWT.LOW: filter = Cairo.CAIRO_FILTER_FAST; break; - case SWT.HIGH: filter = Cairo.CAIRO_FILTER_BEST; break; - } - int /*long*/ pattern = Cairo.cairo_pattern_create_for_surface(srcImage.surface); - if (pattern == 0) SWT.error(SWT.ERROR_NO_HANDLES); - Cairo.cairo_pattern_set_filter(pattern, filter); - Cairo.cairo_pattern_set_extend(pattern, Cairo.CAIRO_EXTEND_REFLECT); - Cairo.cairo_set_source(cairo, pattern); - if (data.alpha != 0xFF) { - Cairo.cairo_paint_with_alpha(cairo, data.alpha / (float)0xFF); - } else { - Cairo.cairo_paint(cairo); - } - Cairo.cairo_restore(cairo); - Cairo.cairo_pattern_destroy(pattern); - } - return; - } - if (srcImage.alpha != -1 || srcImage.alphaData != null) { - drawImageAlpha(srcImage, srcX, srcY, srcWidth, srcHeight, destX, destY, destWidth, destHeight, simple, imgWidth, imgHeight); - } else if (srcImage.transparentPixel != -1 || srcImage.mask != 0) { - drawImageMask(srcImage, srcX, srcY, srcWidth, srcHeight, destX, destY, destWidth, destHeight, simple, imgWidth, imgHeight); - } else { - drawImage(srcImage, srcX, srcY, srcWidth, srcHeight, destX, destY, destWidth, destHeight, simple, imgWidth, imgHeight); - } -} -void drawImage(Image srcImage, int srcX, int srcY, int srcWidth, int srcHeight, int destX, int destY, int destWidth, int destHeight, boolean simple, int imgWidth, int imgHeight) { - if (srcWidth == destWidth && srcHeight == destHeight) { - OS.gdk_draw_drawable(data.drawable, handle, srcImage.pixmap, srcX, srcY, destX, destY, destWidth, destHeight); - } else { - if (device.useXRender) { - drawImageXRender(srcImage, srcX, srcY, srcWidth, srcHeight, destX, destY, destWidth, destHeight, simple, imgWidth, imgHeight, 0, -1); - return; - } - int /*long*/ pixbuf = scale(srcImage.pixmap, srcX, srcY, srcWidth, srcHeight, destWidth, destHeight); - if (pixbuf != 0) { - OS.gdk_pixbuf_render_to_drawable(pixbuf, data.drawable, handle, 0, 0, destX, destY, destWidth, destHeight, OS.GDK_RGB_DITHER_NORMAL, 0, 0); - OS.g_object_unref(pixbuf); - } - } -} -void drawImageAlpha(Image srcImage, int srcX, int srcY, int srcWidth, int srcHeight, int destX, int destY, int destWidth, int destHeight, boolean simple, int imgWidth, int imgHeight) { - if (srcImage.alpha == 0) return; - if (srcImage.alpha == 255) { - drawImage(srcImage, srcX, srcY, srcWidth, srcHeight, destX, destY, destWidth, destHeight, simple, imgWidth, imgHeight); - return; - } - if (device.useXRender) { - drawImageXRender(srcImage, srcX, srcY, srcWidth, srcHeight, destX, destY, destWidth, destHeight, simple, imgWidth, imgHeight, srcImage.mask, OS.PictStandardA8); - return; - } - int /*long*/ pixbuf = OS.gdk_pixbuf_new(OS.GDK_COLORSPACE_RGB, true, 8, srcWidth, srcHeight); - if (pixbuf == 0) return; - int /*long*/ colormap = OS.gdk_colormap_get_system(); - OS.gdk_pixbuf_get_from_drawable(pixbuf, srcImage.pixmap, colormap, srcX, srcY, 0, 0, srcWidth, srcHeight); - int stride = OS.gdk_pixbuf_get_rowstride(pixbuf); - int /*long*/ pixels = OS.gdk_pixbuf_get_pixels(pixbuf); - byte[] line = new byte[stride]; - byte alpha = (byte)srcImage.alpha; - byte[] alphaData = srcImage.alphaData; - for (int y=0; y<srcHeight; y++) { - int alphaIndex = (y + srcY) * imgWidth + srcX; - OS.memmove(line, pixels + (y * stride), stride); - for (int x=3; x<stride; x+=4) { - line[x] = alphaData == null ? alpha : alphaData[alphaIndex++]; - } - OS.memmove(pixels + (y * stride), line, stride); - } - if (srcWidth != destWidth || srcHeight != destHeight) { - int /*long*/ scaledPixbuf = OS.gdk_pixbuf_scale_simple(pixbuf, destWidth, destHeight, OS.GDK_INTERP_BILINEAR); - OS.g_object_unref(pixbuf); - if (scaledPixbuf == 0) return; - pixbuf = scaledPixbuf; - } - /* - * Feature in GTK. gdk_draw_pixbuf was introduced in GTK+ 2.2.0 and - * supports clipping. - */ - if (OS.GTK_VERSION >= OS.VERSION (2, 2, 0)) { - OS.gdk_draw_pixbuf(data.drawable, handle, pixbuf, 0, 0, destX, destY, destWidth, destHeight, OS.GDK_RGB_DITHER_NORMAL, 0, 0); - } else { - OS.gdk_pixbuf_render_to_drawable_alpha(pixbuf, data.drawable, 0, 0, destX, destY, destWidth, destHeight, OS.GDK_PIXBUF_ALPHA_BILEVEL, 128, OS.GDK_RGB_DITHER_NORMAL, 0, 0); - } - OS.g_object_unref(pixbuf); -} -void drawImageMask(Image srcImage, int srcX, int srcY, int srcWidth, int srcHeight, int destX, int destY, int destWidth, int destHeight, boolean simple, int imgWidth, int imgHeight) { - int /*long*/ drawable = data.drawable; - int /*long*/ colorPixmap = srcImage.pixmap; - /* Generate the mask if necessary. */ - if (srcImage.transparentPixel != -1) srcImage.createMask(); - int /*long*/ maskPixmap = srcImage.mask; - - if (device.useXRender) { - drawImageXRender(srcImage, srcX, srcY, srcWidth, srcHeight, destX, destY, destWidth, destHeight, simple, imgWidth, imgHeight, maskPixmap, OS.PictStandardA1); - } else { - if (srcWidth != destWidth || srcHeight != destHeight) { - int /*long*/ pixbuf = OS.gdk_pixbuf_new(OS.GDK_COLORSPACE_RGB, true, 8, srcWidth, srcHeight); - if (pixbuf != 0) { - int /*long*/ colormap = OS.gdk_colormap_get_system(); - OS.gdk_pixbuf_get_from_drawable(pixbuf, colorPixmap, colormap, srcX, srcY, 0, 0, srcWidth, srcHeight); - int /*long*/ maskPixbuf = OS.gdk_pixbuf_new(OS.GDK_COLORSPACE_RGB, false, 8, srcWidth, srcHeight); - if (maskPixbuf != 0) { - OS.gdk_pixbuf_get_from_drawable(maskPixbuf, maskPixmap, 0, srcX, srcY, 0, 0, srcWidth, srcHeight); - int stride = OS.gdk_pixbuf_get_rowstride(pixbuf); - int /*long*/ pixels = OS.gdk_pixbuf_get_pixels(pixbuf); - byte[] line = new byte[stride]; - int maskStride = OS.gdk_pixbuf_get_rowstride(maskPixbuf); - int /*long*/ maskPixels = OS.gdk_pixbuf_get_pixels(maskPixbuf); - byte[] maskLine = new byte[maskStride]; - for (int y=0; y<srcHeight; y++) { - int /*long*/ offset = pixels + (y * stride); - OS.memmove(line, offset, stride); - int /*long*/ maskOffset = maskPixels + (y * maskStride); - OS.memmove(maskLine, maskOffset, maskStride); - for (int x=0; x<srcWidth; x++) { - if (maskLine[x * 3] == 0) { - line[x*4+3] = 0; - } - } - OS.memmove(offset, line, stride); - } - OS.g_object_unref(maskPixbuf); - int /*long*/ scaledPixbuf = OS.gdk_pixbuf_scale_simple(pixbuf, destWidth, destHeight, OS.GDK_INTERP_BILINEAR); - if (scaledPixbuf != 0) { - int /*long*/[] colorBuffer = new int /*long*/[1]; - int /*long*/[] maskBuffer = new int /*long*/[1]; - OS.gdk_pixbuf_render_pixmap_and_mask(scaledPixbuf, colorBuffer, maskBuffer, 128); - colorPixmap = colorBuffer[0]; - maskPixmap = maskBuffer[0]; - OS.g_object_unref(scaledPixbuf); - } - } - OS.g_object_unref(pixbuf); - } - srcX = 0; - srcY = 0; - srcWidth = destWidth; - srcHeight = destHeight; - } - - /* Merge clipping with mask if necessary */ - if (data.clipRgn != 0) { - int newWidth = srcX + srcWidth; - int newHeight = srcY + srcHeight; - int bytesPerLine = (newWidth + 7) / 8; - byte[] maskData = new byte[bytesPerLine * newHeight]; - int /*long*/ mask = OS.gdk_bitmap_create_from_data(0, maskData, newWidth, newHeight); - if (mask != 0) { - int /*long*/ gc = OS.gdk_gc_new(mask); - OS.gdk_region_offset(data.clipRgn, -destX + srcX, -destY + srcY); - OS.gdk_gc_set_clip_region(gc, data.clipRgn); - OS.gdk_region_offset(data.clipRgn, destX - srcX, destY - srcY); - GdkColor color = new GdkColor(); - color.pixel = 1; - OS.gdk_gc_set_foreground(gc, color); - OS.gdk_draw_rectangle(mask, gc, 1, 0, 0, newWidth, newHeight); - OS.gdk_gc_set_function(gc, OS.GDK_AND); - OS.gdk_draw_drawable(mask, gc, maskPixmap, 0, 0, 0, 0, newWidth, newHeight); - OS.g_object_unref(gc); - if (maskPixmap != 0 && srcImage.mask != maskPixmap) OS.g_object_unref(maskPixmap); - maskPixmap = mask; - } - } - - /* Blit cliping the mask */ - GdkGCValues values = new GdkGCValues(); - OS.gdk_gc_get_values(handle, values); - OS.gdk_gc_set_clip_mask(handle, maskPixmap); - OS.gdk_gc_set_clip_origin(handle, destX - srcX, destY - srcY); - OS.gdk_draw_drawable(drawable, handle, colorPixmap, srcX, srcY, destX, destY, srcWidth, srcHeight); - OS.gdk_gc_set_values(handle, values, OS.GDK_GC_CLIP_MASK | OS.GDK_GC_CLIP_X_ORIGIN | OS.GDK_GC_CLIP_Y_ORIGIN); - if (data.clipRgn != 0) OS.gdk_gc_set_clip_region(handle, data.clipRgn); - } - - /* Destroy scaled pixmaps */ - if (colorPixmap != 0 && srcImage.pixmap != colorPixmap) OS.g_object_unref(colorPixmap); - if (maskPixmap != 0 && srcImage.mask != maskPixmap) OS.g_object_unref(maskPixmap); - /* Destroy the image mask if the there is a GC created on the image */ - if (srcImage.transparentPixel != -1 && srcImage.memGC != null) srcImage.destroyMask(); -} -void drawImageXRender(Image srcImage, int srcX, int srcY, int srcWidth, int srcHeight, int destX, int destY, int destWidth, int destHeight, boolean simple, int imgWidth, int imgHeight, int /*long*/ maskPixmap, int maskType) { - int translateX = 0, translateY = 0; - int /*long*/ drawable = data.drawable; - if (data.image == null) { - int[] x = new int[1], y = new int[1]; - int /*long*/ [] real_drawable = new int /*long*/ [1]; - OS.gdk_window_get_internal_paint_info(drawable, real_drawable, x, y); - drawable = real_drawable[0]; - translateX = -x[0]; - translateY = -y[0]; - } - int /*long*/ xDisplay = OS.GDK_DISPLAY(); - int /*long*/ maskPict = 0; - if (maskPixmap != 0) { - int attribCount = 0; - XRenderPictureAttributes attrib = null; - if (srcImage.alpha != -1) { - attribCount = 1; - attrib = new XRenderPictureAttributes(); - attrib.repeat = true; - } - maskPict = OS.XRenderCreatePicture(xDisplay, OS.gdk_x11_drawable_get_xid(maskPixmap), OS.XRenderFindStandardFormat(xDisplay, maskType), attribCount, attrib); - if (maskPict == 0) SWT.error(SWT.ERROR_NO_HANDLES); - } - int /*long*/ format = OS.XRenderFindVisualFormat(xDisplay, OS.gdk_x11_visual_get_xvisual(OS.gdk_visual_get_system())); - int /*long*/ destPict = OS.XRenderCreatePicture(xDisplay, OS.gdk_x11_drawable_get_xid(drawable), format, 0, null); - if (destPict == 0) SWT.error(SWT.ERROR_NO_HANDLES); - int /*long*/ srcPict = OS.XRenderCreatePicture(xDisplay, OS.gdk_x11_drawable_get_xid(srcImage.pixmap), format, 0, null); - if (srcPict == 0) SWT.error(SWT.ERROR_NO_HANDLES); - if (srcWidth != destWidth || srcHeight != destHeight) { - int[] transform = new int[]{(int)(((float)srcWidth / destWidth) * 65536), 0, 0, 0, (int)(((float)srcHeight / destHeight) * 65536), 0, 0, 0, 65536}; - OS.XRenderSetPictureTransform(xDisplay, srcPict, transform); - if (maskPict != 0) OS.XRenderSetPictureTransform(xDisplay, maskPict, transform); - srcX *= destWidth / (float)srcWidth; - srcY *= destHeight / (float)srcHeight; - } - int /*long*/ clipping = data.clipRgn; - if (data.damageRgn != 0) { - if (clipping == 0) { - clipping = data.damageRgn; - } else { - clipping = OS.gdk_region_new(); - OS.gdk_region_union(clipping, data.clipRgn); - OS.gdk_region_intersect(clipping, data.damageRgn); - } - } - if (clipping != 0) { - int[] nRects = new int[1]; - int /*long*/[] rects = new int /*long*/[1]; - OS.gdk_region_get_rectangles(clipping, rects, nRects); - GdkRectangle rect = new GdkRectangle(); - short[] xRects = new short[nRects[0] * 4]; - for (int i=0, j=0; i<nRects[0]; i++, j+=4) { - OS.memmove(rect, rects[0] + (i * GdkRectangle.sizeof), GdkRectangle.sizeof); - xRects[j] = (short)rect.x; - xRects[j+1] = (short)rect.y; - xRects[j+2] = (short)rect.width; - xRects[j+3] = (short)rect.height; - } - OS.XRenderSetPictureClipRectangles(xDisplay, destPict, translateX, translateY, xRects, nRects[0]); - if (clipping != data.clipRgn && clipping != data.damageRgn) { - OS.gdk_region_destroy(clipping); - } - if (rects[0] != 0) OS.g_free(rects[0]); - } - OS.XRenderComposite(xDisplay, maskPict != 0 ? OS.PictOpOver : OS.PictOpSrc, srcPict, maskPict, destPict, srcX, srcY, srcX, srcY, destX + translateX, destY + translateY, destWidth, destHeight); - OS.XRenderFreePicture(xDisplay, destPict); - OS.XRenderFreePicture(xDisplay, srcPict); - if (maskPict != 0) OS.XRenderFreePicture(xDisplay, maskPict); -} -int /*long*/ scale(int /*long*/ src, int srcX, int srcY, int srcWidth, int srcHeight, int destWidth, int destHeight) { - int /*long*/ pixbuf = OS.gdk_pixbuf_new(OS.GDK_COLORSPACE_RGB, false, 8, srcWidth, srcHeight); - if (pixbuf == 0) return 0; - int /*long*/ colormap = OS.gdk_colormap_get_system(); - OS.gdk_pixbuf_get_from_drawable(pixbuf, src, colormap, srcX, srcY, 0, 0, srcWidth, srcHeight); - int /*long*/ scaledPixbuf = OS.gdk_pixbuf_scale_simple(pixbuf, destWidth, destHeight, OS.GDK_INTERP_BILINEAR); - OS.g_object_unref(pixbuf); - return scaledPixbuf; -} - -/** - * 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 /*long*/ cairo = data.cairo; - if (cairo != 0) { - float offset = data.lineWidth == 0 || (data.lineWidth % 2) == 1 ? 0.5f : 0f; - Cairo.cairo_move_to(cairo, x1 + offset, y1 + offset); - Cairo.cairo_line_to(cairo, x2 + offset, y2 + offset); - Cairo.cairo_stroke(cairo); - return; - } - OS.gdk_draw_line (data.drawable, handle, x1, y1, x2, y2); -} - -/** - * Draws the outline of an oval, using the foreground color, - * within the specified rectangular area. - * <p> - * The result is a circle or ellipse that fits within the - * rectangle specified by the <code>x</code>, <code>y</code>, - * <code>width</code>, and <code>height</code> arguments. - * </p><p> - * The oval covers an area that is <code>width + 1</code> - * pixels wide and <code>height + 1</code> pixels tall. - * </p> - * - * @param x the x coordinate of the upper left corner of the oval to be drawn - * @param y the y coordinate of the upper left corner of the oval to be drawn - * @param width the width of the oval to be drawn - * @param height the height of the oval to be drawn - * - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - */ -public void drawOval(int x, int y, int width, int height) { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - if (width < 0) { - x = x + width; - width = -width; - } - if (height < 0) { - y = y + height; - height = -height; - } - int /*long*/ cairo = data.cairo; - if (cairo != 0) { - float offset = data.lineWidth == 0 || (data.lineWidth % 2) == 1 ? 0.5f : 0f; - if (width == height) { - Cairo.cairo_arc_negative(cairo, x + offset + width / 2f, y + offset + height / 2f, width / 2f, 0, -2 * (float)Compatibility.PI); - } else { - Cairo.cairo_save(cairo); - Cairo.cairo_translate(cairo, x + offset + width / 2f, y + offset + height / 2f); - Cairo.cairo_scale(cairo, width / 2f, height / 2f); - Cairo.cairo_arc_negative(cairo, 0, 0, 1, 0, -2 * (float)Compatibility.PI); - Cairo.cairo_restore(cairo); - } - Cairo.cairo_stroke(cairo); - return; - } - OS.gdk_draw_arc(data.drawable, handle, 0, x, y, width, height, 0, 23040); -} - -/** - * Draws the path described by the parameter. - * - * @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> - * </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); - initCairo(); - int /*long*/ cairo = data.cairo; - Cairo.cairo_save(cairo); - float offset = data.lineWidth == 0 || (data.lineWidth % 2) == 1 ? 0.5f : 0f; - Cairo.cairo_translate(cairo, offset, offset); - int /*long*/ copy = Cairo.cairo_copy_path(path.handle); - if (copy == 0) SWT.error(SWT.ERROR_NO_HANDLES); - Cairo.cairo_append_path(cairo, copy); - Cairo.cairo_path_destroy(copy); - Cairo.cairo_stroke(cairo); - Cairo.cairo_restore(cairo); -} - -/** - * 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 /*long*/ cairo = data.cairo; - if (cairo != 0) { - Cairo.cairo_rectangle(cairo, x, y, 1, 1); - Cairo.cairo_fill(cairo); - return; - } - OS.gdk_draw_point(data.drawable, handle, x, y); -} - -/** - * 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); - int /*long*/ cairo = data.cairo; - if (cairo != 0) { - drawPolyline(cairo, pointArray, true); - Cairo.cairo_stroke(cairo); - return; - } - OS.gdk_draw_polygon(data.drawable, handle, 0, pointArray, pointArray.length / 2); -} - -/** - * 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); - int /*long*/ cairo = data.cairo; - if (cairo != 0) { - drawPolyline(cairo, pointArray, false); - Cairo.cairo_stroke(cairo); - return; - } - OS.gdk_draw_lines(data.drawable, handle, pointArray, pointArray.length / 2); -} - -void drawPolyline(int /*long*/ cairo, int[] pointArray, boolean close) { - int count = pointArray.length / 2; - if (count == 0) return; - float offset = data.lineWidth == 0 || (data.lineWidth % 2) == 1 ? 0.5f : 0f; - Cairo.cairo_move_to(cairo, pointArray[0] + offset, pointArray[1] + offset); - for (int i = 1, j=2; i < count; i++, j += 2) { - Cairo.cairo_line_to(cairo, pointArray[j] + offset, pointArray[j + 1] + offset); - } - if (close) Cairo.cairo_close_path(cairo); -} - -/** - * Draws the outline of the rectangle specified by the arguments, - * using the receiver's foreground color. The left and right edges - * of the rectangle are at <code>x</code> and <code>x + width</code>. - * The top and bottom edges are at <code>y</code> and <code>y + height</code>. - * - * @param x the x coordinate of the rectangle to be drawn - * @param y the y coordinate of the rectangle to be drawn - * @param width the width of the rectangle to be drawn - * @param height the height of the rectangle to be drawn - * - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - */ -public void drawRectangle(int x, int y, int width, int height) { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - if (width < 0) { - x = x + width; - width = -width; - } - if (height < 0) { - y = y + height; - height = -height; - } - int /*long*/ cairo = data.cairo; - if (cairo != 0) { - float offset = data.lineWidth == 0 || (data.lineWidth % 2) == 1 ? 0.5f : 0f; - Cairo.cairo_rectangle(cairo, x + offset, y + offset, width, height); - Cairo.cairo_stroke(cairo); - return; - } - OS.gdk_draw_rectangle(data.drawable, handle, 0, x, y, width, height); -} - -/** - * 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); - int nx = x; - int ny = y; - int nw = width; - int nh = height; - int naw = arcWidth; - int nah = arcHeight; - if (nw < 0) { - nw = 0 - nw; - nx = nx - nw; - } - if (nh < 0) { - nh = 0 - nh; - ny = ny -nh; - } - if (naw < 0) naw = 0 - naw; - if (nah < 0) nah = 0 - nah; - int /*long*/ cairo = data.cairo; - if (cairo != 0) { - float naw2 = naw / 2f; - float nah2 = nah / 2f; - float fw = nw / naw2; - float fh = nh / nah2; - Cairo.cairo_save(cairo); - float offset = data.lineWidth == 0 || (data.lineWidth % 2) == 1 ? 0.5f : 0f; - Cairo.cairo_translate(cairo, nx + offset, ny + offset); - Cairo.cairo_scale(cairo, naw2, nah2); - Cairo.cairo_move_to(cairo, fw - 1, 0); - Cairo.cairo_arc(cairo, fw - 1, 1, 1, Compatibility.PI + Compatibility.PI/2.0, Compatibility.PI*2.0); - Cairo.cairo_arc(cairo, fw - 1, fh - 1, 1, 0, Compatibility.PI/2.0); - Cairo.cairo_arc(cairo, 1, fh - 1, 1, Compatibility.PI/2, Compatibility.PI); - Cairo.cairo_arc(cairo, 1, 1, 1, Compatibility.PI, 270.0*Compatibility.PI/180.0); - Cairo.cairo_close_path(cairo); - Cairo.cairo_restore(cairo); - Cairo.cairo_stroke(cairo); - return; - } - int naw2 = naw / 2; - int nah2 = nah / 2; - int /*long*/ drawable = data.drawable; - if (nw > naw) { - if (nh > nah) { - OS.gdk_draw_arc(drawable, handle, 0, nx, ny, naw, nah, 5760, 5760); - OS.gdk_draw_line(drawable, handle, nx + naw2, ny, nx + nw - naw2, ny); - OS.gdk_draw_arc(drawable, handle, 0, nx + nw - naw, ny, naw, nah, 0, 5760); - OS.gdk_draw_line(drawable, handle, nx + nw, ny + nah2, nx + nw, ny + nh - nah2); - OS.gdk_draw_arc(drawable, handle, 0, nx + nw - naw, ny + nh - nah, naw, nah, 17280, 5760); - OS.gdk_draw_line(drawable,handle, nx + naw2, ny + nh, nx + nw - naw2, ny + nh); - OS.gdk_draw_arc(drawable, handle, 0, nx, ny + nh - nah, naw, nah, 11520, 5760); - OS.gdk_draw_line(drawable, handle, nx, ny + nah2, nx, ny + nh - nah2); - } else { - OS.gdk_draw_arc(drawable, handle, 0, nx, ny, naw, nh, 5760, 11520); - OS.gdk_draw_line(drawable, handle, nx + naw2, ny, nx + nw - naw2, ny); - OS.gdk_draw_arc(drawable, handle, 0, nx + nw - naw, ny, naw, nh, 17280, 11520); - OS.gdk_draw_line(drawable,handle, nx + naw2, ny + nh, nx + nw - naw2, ny + nh); - } - } else { - if (nh > nah) { - OS.gdk_draw_arc(drawable, handle, 0, nx, ny, nw, nah, 0, 11520); - OS.gdk_draw_line(drawable, handle, nx + nw, ny + nah2, nx + nw, ny + nh - nah2); - OS.gdk_draw_arc(drawable, handle, 0, nx, ny + nh - nah, nw, nah, 11520, 11520); - OS.gdk_draw_line(drawable,handle, nx, ny + nah2, nx, ny + nh - nah2); - } else { - OS.gdk_draw_arc(drawable, handle, 0, nx, ny, nw, nh, 0, 23040); - } - } -} - -/** - * 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) { - drawText(string, x, y, isTransparent ? SWT.DRAW_TRANSPARENT : 0); -} - -/** - * Draws the given string, using the receiver's current font and - * foreground color. Tab expansion and carriage return processing - * are performed. The background of the rectangular area where - * the text is being drawn will be filled with the receiver's - * background color. - * - * @param string the string to be drawn - * @param x the x coordinate of the top left corner of the rectangular area where the text is to be drawn - * @param y the y coordinate of the top left corner of the rectangular area where the text is to be drawn - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the string is null</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - */ -public void drawText(String string, int x, int y) { - drawText(string, x, y, SWT.DRAW_DELIMITER | SWT.DRAW_TAB); -} - -/** - * Draws the given string, using the receiver's current font and - * foreground color. Tab expansion and carriage return processing - * are performed. If <code>isTransparent</code> is <code>true</code>, - * then the background of the rectangular area where the text is being - * drawn will not be modified, otherwise it will be filled with the - * receiver's background color. - * - * @param string the string to be drawn - * @param x the x coordinate of the top left corner of the rectangular area where the text is to be drawn - * @param y the y coordinate of the top left corner of the rectangular area where the text is to be drawn - * @param isTransparent if <code>true</code> the background will be transparent, otherwise it will be opaque - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the string is null</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - */ -public void drawText(String string, int x, int y, boolean isTransparent) { - int flags = SWT.DRAW_DELIMITER | SWT.DRAW_TAB; - if (isTransparent) flags |= SWT.DRAW_TRANSPARENT; - drawText(string, x, y, flags); -} - -/** - * Draws the given string, using the receiver's current font and - * foreground color. Tab expansion, line delimiter and mnemonic - * processing are performed according to the specified flags. If - * <code>flags</code> includes <code>DRAW_TRANSPARENT</code>, - * then the background of the rectangular area where the text is being - * drawn will not be modified, otherwise it will be filled with the - * receiver's background color. - * <p> - * The parameter <code>flags</code> may be a combination of: - * <dl> - * <dt><b>DRAW_DELIMITER</b></dt> - * <dd>draw multiple lines</dd> - * <dt><b>DRAW_TAB</b></dt> - * <dd>expand tabs</dd> - * <dt><b>DRAW_MNEMONIC</b></dt> - * <dd>underline the mnemonic character</dd> - * <dt><b>DRAW_TRANSPARENT</b></dt> - * <dd>transparent background</dd> - * </dl> - * </p> - * - * @param string the string to be drawn - * @param x the x coordinate of the top left corner of the rectangular area where the text is to be drawn - * @param y the y coordinate of the top left corner of the rectangular area where the text is to be drawn - * @param flags the flags specifing how to process the text - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the string is null</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - */ -public void drawText (String string, int x, int y, int flags) { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - if (string == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); - if (string.length() == 0) return; - int /*long*/ cairo = data.cairo; - if (cairo != 0) { - if (OS.GTK_VERSION < OS.VERSION(2, 8, 0)) { - //TODO - honor flags - cairo_font_extents_t extents = new cairo_font_extents_t(); - Cairo.cairo_font_extents(cairo, extents); - double baseline = y + extents.ascent; - Cairo.cairo_move_to(cairo, x, baseline); - byte[] buffer = Converter.wcsToMbcs(null, string, true); - Cairo.cairo_show_text(cairo, buffer); - Cairo.cairo_new_path(cairo); - return; - } - } - setString(string, flags); - GdkColor background = null; - GdkGCValues values = null; - if ((flags & SWT.DRAW_TRANSPARENT) == 0) { - values = new GdkGCValues(); - OS.gdk_gc_get_values(handle, values); - background = new GdkColor(); - background.pixel = values.background_pixel; - int /*long*/ colormap = OS.gdk_colormap_get_system(); - OS.gdk_colormap_query_color(colormap, background.pixel, background); - } - if (cairo != 0) { - if ((flags & SWT.DRAW_TRANSPARENT) == 0) { - int[] width = new int[1], height = new int[1]; - OS.pango_layout_get_size(data.layout, width, height); - Cairo.cairo_rectangle(cairo, x, y, OS.PANGO_PIXELS(width[0]), OS.PANGO_PIXELS(height[0])); - Cairo.cairo_save(cairo); - if (data.backgroundPattern != null) { - Cairo.cairo_set_source(cairo, data.backgroundPattern.handle); - } else { - Cairo.cairo_set_source_rgba(cairo, (background.red & 0xFFFF) / (float)0xFFFF, (background.green & 0xFFFF) / (float)0xFFFF, (background.blue & 0xFFFF) / (float)0xFFFF, data.alpha / (float)0xFF); - } - Cairo.cairo_fill(cairo); - Cairo.cairo_restore(cairo); - } - Cairo.cairo_move_to(cairo, x, y); - OS.pango_cairo_show_layout(cairo, data.layout); - return; - } - if (!data.xorMode) { - OS.gdk_draw_layout_with_colors(data.drawable, handle, x, y, data.layout, null, background); - } else { - int /*long*/ layout = data.layout; - int[] w = new int[1], h = new int[1]; - OS.pango_layout_get_size(layout, w, h); - int width = OS.PANGO_PIXELS(w[0]); - int height = OS.PANGO_PIXELS(h[0]); - int /*long*/ pixmap = OS.gdk_pixmap_new(OS.GDK_ROOT_PARENT(), width, height, -1); - if (pixmap == 0) SWT.error(SWT.ERROR_NO_HANDLES); - int /*long*/ gdkGC = OS.gdk_gc_new(pixmap); - if (gdkGC == 0) SWT.error(SWT.ERROR_NO_HANDLES); - GdkColor foreground = new GdkColor(); - OS.gdk_gc_set_foreground(gdkGC, foreground); - OS.gdk_draw_rectangle(pixmap, gdkGC, 1, 0, 0, width, height); - if (values == null) { - values = new GdkGCValues(); - OS.gdk_gc_get_values(handle, values); - } - foreground.pixel = values.foreground_pixel; - OS.gdk_gc_set_foreground(gdkGC, foreground); - OS.gdk_draw_layout_with_colors(pixmap, gdkGC, 0, 0, layout, null, background); - OS.g_object_unref(gdkGC); - OS.gdk_draw_drawable(data.drawable, handle, pixmap, 0, 0, x, y, width, height); - OS.g_object_unref(pixmap); - } -} - -/** - * Compares the argument to the receiver, and returns true - * if they represent the <em>same</em> object using a class - * specific comparison. - * - * @param object the object to compare with this object - * @return <code>true</code> if the object is the same as this object and <code>false</code> otherwise - * - * @see #hashCode - */ -public boolean equals(Object object) { - if (object == this) return true; - if (!(object instanceof GC)) return false; - return handle == ((GC)object).handle; -} - -/** - * Fills the interior of a circular or elliptical arc within - * the specified rectangular area, with the receiver's background - * color. - * <p> - * The resulting arc begins at <code>startAngle</code> and extends - * for <code>arcAngle</code> degrees, using the current color. - * Angles are interpreted such that 0 degrees is at the 3 o'clock - * position. A positive value indicates a counter-clockwise rotation - * while a negative value indicates a clockwise rotation. - * </p><p> - * The center of the arc is the center of the rectangle whose origin - * is (<code>x</code>, <code>y</code>) and whose size is specified by the - * <code>width</code> and <code>height</code> arguments. - * </p><p> - * The resulting arc covers an area <code>width + 1</code> pixels wide - * by <code>height + 1</code> pixels tall. - * </p> - * - * @param x the x coordinate of the upper-left corner of the arc to be filled - * @param y the y coordinate of the upper-left corner of the arc to be filled - * @param width the width of the arc to be filled - * @param height the height of the arc to be filled - * @param startAngle the beginning angle - * @param arcAngle the angular extent of the arc, relative to the start angle - * - * @exception 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; - GdkGCValues values = new GdkGCValues(); - OS.gdk_gc_get_values(handle, values); - GdkColor color = new GdkColor(); - color.pixel = values.background_pixel; - int /*long*/ cairo = data.cairo; - if (cairo != 0) { - if (width == height) { - if (arcAngle >= 0) { - Cairo.cairo_arc_negative(cairo, x + width / 2f, y + height / 2f, width / 2f, -startAngle * (float)Compatibility.PI / 180, -(startAngle + arcAngle) * (float)Compatibility.PI / 180); - } else { - Cairo.cairo_arc(cairo, x + width / 2f, y + height / 2f, width / 2f, -startAngle * (float)Compatibility.PI / 180, -(startAngle + arcAngle) * (float)Compatibility.PI / 180); - } - Cairo.cairo_line_to(cairo, x + width / 2f, y + height / 2f); - } else { - Cairo.cairo_save(cairo); - Cairo.cairo_translate(cairo, x + width / 2f, y + height / 2f); - Cairo.cairo_scale(cairo, width / 2f, height / 2f); - if (arcAngle >= 0) { - Cairo.cairo_arc_negative(cairo, 0, 0, 1, -startAngle * (float)Compatibility.PI / 180, -(startAngle + arcAngle) * (float)Compatibility.PI / 180); - } else { - Cairo.cairo_arc(cairo, 0, 0, 1, -startAngle * (float)Compatibility.PI / 180, -(startAngle + arcAngle) * (float)Compatibility.PI / 180); - } - Cairo.cairo_line_to(cairo, 0, 0); - Cairo.cairo_restore(cairo); - } - Cairo.cairo_save(cairo); - if (data.backgroundPattern != null) { - Cairo.cairo_set_source(cairo, data.backgroundPattern.handle); - } else { - OS.gdk_colormap_query_color(OS.gdk_colormap_get_system(), color.pixel, color); - Cairo.cairo_set_source_rgba(cairo, (color.red & 0xFFFF) / (float)0xFFFF, (color.green & 0xFFFF) / (float)0xFFFF, (color.blue & 0xFFFF) / (float)0xFFFF, data.alpha / (float)0xFF); - } - Cairo.cairo_fill(cairo); - Cairo.cairo_restore(cairo); - return; - } - OS.gdk_gc_set_foreground(handle, color); - OS.gdk_draw_arc(data.drawable, handle, 1, x, y, width, height, startAngle * 64, arcAngle * 64); - color.pixel = values.foreground_pixel; - OS.gdk_gc_set_foreground(handle, color); -} - -/** - * 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; - - /* Rewrite this to use GdkPixbuf */ - - GdkGCValues values = new GdkGCValues(); - OS.gdk_gc_get_values(handle, values); - - RGB backgroundRGB, foregroundRGB; - backgroundRGB = getBackground().getRGB(); - foregroundRGB = getForeground().getRGB(); - - RGB fromRGB, toRGB; - fromRGB = foregroundRGB; - toRGB = backgroundRGB; - 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) { - fromRGB = backgroundRGB; - toRGB = foregroundRGB; - } - if (fromRGB.equals(toRGB)) { - fillRectangle(x, y, width, height); - return; - } - int /*long*/ cairo = data.cairo; - if (cairo != 0) { - int /*long*/ pattern; - if (vertical) { - pattern = Cairo.cairo_pattern_create_linear (0.0, 0.0, 0.0, 1.0); - } else { - pattern = Cairo.cairo_pattern_create_linear (0.0, 0.0, 1.0, 0.0); - } - Cairo.cairo_pattern_add_color_stop_rgba (pattern, 0, fromRGB.red / 255f, fromRGB.green / 255f, fromRGB.blue / 255f, data.alpha / 255f); - Cairo.cairo_pattern_add_color_stop_rgba (pattern, 1, toRGB.red / 255f, toRGB.green / 255f, toRGB.blue / 255f, data.alpha / 255f); - Cairo.cairo_save(cairo); - Cairo.cairo_translate(cairo, x, y); - Cairo.cairo_scale(cairo, width, height); - Cairo.cairo_rectangle(cairo, 0, 0, 1, 1); - Cairo.cairo_set_source(cairo, pattern); - Cairo.cairo_fill(cairo); - Cairo.cairo_restore(cairo); - Cairo.cairo_pattern_destroy(pattern); - return; - } - ImageData.fillGradientRectangle(this, data.device, - x, y, width, height, vertical, fromRGB, toRGB, - 8, 8, 8); -} - -/** - * Fills the interior of an oval, within the specified - * rectangular area, with the receiver's background - * color. - * - * @param x the x coordinate of the upper left corner of the oval to be filled - * @param y the y coordinate of the upper left corner of the oval to be filled - * @param width the width of the oval to be filled - * @param height the height of the oval to be filled - * - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - * - * @see #drawOval - */ -public void fillOval(int x, int y, int width, int height) { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - if (width < 0) { - x = x + width; - width = -width; - } - if (height < 0) { - y = y + height; - height = -height; - } - GdkGCValues values = new GdkGCValues(); - OS.gdk_gc_get_values(handle, values); - GdkColor color = new GdkColor(); - color.pixel = values.background_pixel; - int /*long*/ cairo = data.cairo; - if (cairo != 0) { - if (width == height) { - Cairo.cairo_arc_negative(cairo, x + width / 2f, y + height / 2f, width / 2f, 0, 2 * (float)Compatibility.PI); - } else { - Cairo.cairo_save(cairo); - Cairo.cairo_translate(cairo, x + width / 2f, y + height / 2f); - Cairo.cairo_scale(cairo, width / 2f, height / 2f); - Cairo.cairo_arc_negative(cairo, 0, 0, 1, 0, 2 * (float)Compatibility.PI); - Cairo.cairo_restore(cairo); - } - Cairo.cairo_save(cairo); - if (data.backgroundPattern != null) { - Cairo.cairo_set_source(cairo, data.backgroundPattern.handle); - } else { - OS.gdk_colormap_query_color(OS.gdk_colormap_get_system(), color.pixel, color); - Cairo.cairo_set_source_rgba(cairo, (color.red & 0xFFFF) / (float)0xFFFF, (color.green & 0xFFFF) / (float)0xFFFF, (color.blue & 0xFFFF) / (float)0xFFFF, data.alpha / (float)0xFF); - } - Cairo.cairo_fill(cairo); - Cairo.cairo_restore(cairo); - return; - } - OS.gdk_gc_set_foreground(handle, color); - OS.gdk_draw_arc(data.drawable, handle, 1, x, y, width, height, 0, 23040); - color.pixel = values.foreground_pixel; - OS.gdk_gc_set_foreground(handle, color); -} - -/** - * Fills the path described by the parameter. - * - * @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> - * </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); - initCairo(); - GdkGCValues values = new GdkGCValues(); - OS.gdk_gc_get_values(handle, values); - GdkColor color = new GdkColor(); - color.pixel = values.background_pixel; - int /*long*/ cairo = data.cairo; - int /*long*/ colormap = OS.gdk_colormap_get_system(); - OS.gdk_colormap_query_color(colormap, color.pixel, color); - Cairo.cairo_save(cairo); - if (data.backgroundPattern != null) { - Cairo.cairo_set_source(cairo, data.backgroundPattern.handle); - } else { - Cairo.cairo_set_source_rgba(cairo, (color.red & 0xFFFF) / (float)0xFFFF, (color.green & 0xFFFF) / (float)0xFFFF, (color.blue & 0xFFFF) / (float)0xFFFF, data.alpha / (float)0xFF); - } - int /*long*/ copy = Cairo.cairo_copy_path(path.handle); - if (copy == 0) SWT.error(SWT.ERROR_NO_HANDLES); - Cairo.cairo_append_path(cairo, copy); - Cairo.cairo_path_destroy(copy); - Cairo.cairo_fill(cairo); - Cairo.cairo_restore(cairo); -} - -/** - * 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); - GdkGCValues values = new GdkGCValues(); - OS.gdk_gc_get_values(handle, values); - GdkColor color = new GdkColor(); - color.pixel = values.background_pixel; - int /*long*/ cairo = data.cairo; - if (cairo != 0) { - int /*long*/ colormap = OS.gdk_colormap_get_system(); - OS.gdk_colormap_query_color(colormap, color.pixel, color); - Cairo.cairo_save(cairo); - if (data.backgroundPattern != null) { - Cairo.cairo_set_source(cairo, data.backgroundPattern.handle); - } else { - Cairo.cairo_set_source_rgba(cairo, (color.red & 0xFFFF) / (float)0xFFFF, (color.green & 0xFFFF) / (float)0xFFFF, (color.blue & 0xFFFF) / (float)0xFFFF, data.alpha / (float)0xFF); - } - drawPolyline(cairo, pointArray, true); - Cairo.cairo_fill(cairo); - Cairo.cairo_restore(cairo); - return; - } - OS.gdk_gc_set_foreground(handle, color); - OS.gdk_draw_polygon(data.drawable, handle, 1, pointArray, pointArray.length / 2); - color.pixel = values.foreground_pixel; - OS.gdk_gc_set_foreground(handle, color); -} - -/** - * 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) { - x = x + width; - width = -width; - } - if (height < 0) { - y = y + height; - height = -height; - } - GdkGCValues values = new GdkGCValues(); - OS.gdk_gc_get_values(handle, values); - GdkColor color = new GdkColor(); - color.pixel = values.background_pixel; - int /*long*/ cairo = data.cairo; - if (cairo != 0) { - int /*long*/ colormap = OS.gdk_colormap_get_system(); - OS.gdk_colormap_query_color(colormap, color.pixel, color); - Cairo.cairo_save(cairo); - if (data.backgroundPattern != null) { - Cairo.cairo_set_source(cairo, data.backgroundPattern.handle); - } else { - Cairo.cairo_set_source_rgba(cairo, (color.red & 0xFFFF) / (float)0xFFFF, (color.green & 0xFFFF) / (float)0xFFFF, (color.blue & 0xFFFF) / (float)0xFFFF, data.alpha / (float)0xFF); - } - Cairo.cairo_rectangle(cairo, x, y, width, height); - Cairo.cairo_fill(cairo); - Cairo.cairo_restore(cairo); - return; - } - OS.gdk_gc_set_foreground(handle, color); - OS.gdk_draw_rectangle(data.drawable, handle, 1, x, y, width, height); - color.pixel = values.foreground_pixel; - OS.gdk_gc_set_foreground(handle, color); -} - -/** - * 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 (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - 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); - int nx = x; - int ny = y; - int nw = width; - int nh = height; - int naw = arcWidth; - int nah = arcHeight; - if (nw < 0) { - nw = 0 - nw; - nx = nx - nw; - } - if (nh < 0) { - nh = 0 - nh; - ny = ny -nh; - } - if (naw < 0) naw = 0 - naw; - if (nah < 0) nah = 0 - nah; - GdkGCValues values = new GdkGCValues(); - OS.gdk_gc_get_values(handle, values); - GdkColor color = new GdkColor(); - color.pixel = values.background_pixel; - int /*long*/ cairo = data.cairo; - if (cairo != 0) { - float naw2 = naw / 2f; - float nah2 = nah / 2f; - float fw = nw / naw2; - float fh = nh / nah2; - int /*long*/ colormap = OS.gdk_colormap_get_system(); - OS.gdk_colormap_query_color(colormap, color.pixel, color); - Cairo.cairo_save(cairo); - Cairo.cairo_save(cairo); - Cairo.cairo_translate(cairo, nx, ny); - Cairo.cairo_scale(cairo, naw2, nah2); - Cairo.cairo_move_to(cairo, fw - 1, 0); - Cairo.cairo_arc(cairo, fw - 1, 1, 1, Compatibility.PI + Compatibility.PI/2.0, Compatibility.PI*2.0); - Cairo.cairo_arc(cairo, fw - 1, fh - 1, 1, 0, Compatibility.PI/2.0); - Cairo.cairo_arc(cairo, 1, fh - 1, 1, Compatibility.PI/2, Compatibility.PI); - Cairo.cairo_arc(cairo, 1, 1, 1, Compatibility.PI, 270.0*Compatibility.PI/180.0); - Cairo.cairo_close_path(cairo); - Cairo.cairo_restore(cairo); - if (data.backgroundPattern != null) { - Cairo.cairo_set_source(cairo, data.backgroundPattern.handle); - } else { - Cairo.cairo_set_source_rgba(cairo, (color.red & 0xFFFF) / (float)0xFFFF, (color.green & 0xFFFF) / (float)0xFFFF, (color.blue & 0xFFFF) / (float)0xFFFF, data.alpha / (float)0xFF); - } - Cairo.cairo_fill(cairo); - Cairo.cairo_restore(cairo); - return; - } - int naw2 = naw / 2; - int nah2 = nah / 2; - OS.gdk_gc_set_foreground(handle, color); - int /*long*/ drawable = data.drawable; - if (nw > naw) { - if (nh > nah) { - OS.gdk_draw_arc(drawable, handle, 1, nx, ny, naw, nah, 5760, 5760); - OS.gdk_draw_rectangle(drawable, handle, 1, nx + naw2, ny, nw - naw2 * 2, nh); - OS.gdk_draw_arc(drawable, handle, 1, nx + nw - naw, ny, naw, nah, 0, 5760); - OS.gdk_draw_rectangle(drawable, handle, 1, nx, ny + nah2, naw2, nh - nah2 * 2); - OS.gdk_draw_arc(drawable, handle, 1, nx + nw - naw, ny + nh - nah, naw, nah, 17280, 5760); - OS.gdk_draw_rectangle(drawable, handle, 1, nx + nw - naw2, ny + nah2, naw2, nh - nah2 * 2); - OS.gdk_draw_arc(drawable, handle, 1, nx, ny + nh - nah, naw, nah, 11520, 5760); - } else { - OS.gdk_draw_arc(drawable, handle, 1, nx, ny, naw, nh, 5760, 11520); - OS.gdk_draw_rectangle(drawable, handle, 1, nx + naw2, ny, nw - naw2 * 2, nh); - OS.gdk_draw_arc(drawable, handle, 1, nx + nw - naw, ny, naw, nh, 17280, 11520); - } - } else { - if (nh > nah) { - OS.gdk_draw_arc(drawable, handle, 1, nx, ny, nw, nah, 0, 11520); - OS.gdk_draw_rectangle(drawable, handle, 1, nx, ny + nah2, nw, nh - nah2 * 2); - OS.gdk_draw_arc(drawable, handle, 1, nx, ny + nh - nah, nw, nah, 11520, 11520); - } else { - OS.gdk_draw_arc(drawable, handle, 1, nx, ny, nw, nh, 0, 23040); - } - } - color.pixel = values.foreground_pixel; - OS.gdk_gc_set_foreground(handle, color); -} - -int fixMnemonic (char [] buffer) { - int i=0, j=0; - int mnemonic=-1; - while (i < buffer.length) { - if ((buffer [j++] = buffer [i++]) == '&') { - if (i == buffer.length) {continue;} - if (buffer [i] == '&') {i++; continue;} - if (mnemonic == -1) mnemonic = j; - j--; - } - } - while (j < buffer.length) buffer [j++] = 0; - return mnemonic; -} - -/** - * Returns the <em>advance width</em> of the specified character in - * the font which is currently selected into the receiver. - * <p> - * The advance width is defined as the horizontal distance the cursor - * should move after printing the character in the selected font. - * </p> - * - * @param ch the character to measure - * @return the distance in the x direction to move past the character before painting the next - * - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - */ -public int getAdvanceWidth(char ch) { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - //BOGUS - return stringExtent(new String(new char[]{ch})).x; -} - -/** - * 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 data.cairo != 0; -} - -/** - * Returns the receiver's alpha value. - * - * @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 data.alpha; -} - -/** - * 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); - if (data.cairo == 0) return SWT.DEFAULT; - int antialias = Cairo.cairo_get_antialias(data.cairo); - switch (antialias) { - case Cairo.CAIRO_ANTIALIAS_DEFAULT: return SWT.DEFAULT; - case Cairo.CAIRO_ANTIALIAS_NONE: return SWT.OFF; - case Cairo.CAIRO_ANTIALIAS_GRAY: - case Cairo.CAIRO_ANTIALIAS_SUBPIXEL: return SWT.ON; - } - 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); - GdkGCValues values = new GdkGCValues(); - OS.gdk_gc_get_values(handle, values); - GdkColor color = new GdkColor(); - color.pixel = values.background_pixel; - int /*long*/ colormap = OS.gdk_colormap_get_system(); - OS.gdk_colormap_query_color(colormap, color.pixel, color); - return Color.gtk_new(data.device, color); -} - -/** - * 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 data.backgroundPattern; -} - -/** - * 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); - //BOGUS - return stringExtent(new String(new char[]{ch})).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[] width = new int[1], height = new int[1]; - OS.gdk_drawable_get_size(data.drawable, width, height); - int /*long*/ clipRgn = data.clipRgn; - if (clipRgn == 0) { - return new Rectangle(0, 0, width[0], height[0]); - } else { - int /*long*/ rgn = OS.gdk_region_new(); - GdkRectangle rect = new GdkRectangle(); - rect.width = width[0]; - rect.height = height[0]; - OS.gdk_region_union_with_rect(rgn, rect); - OS.gdk_region_intersect(rgn, clipRgn); - OS.gdk_region_get_clipbox(rgn, rect); - OS.gdk_region_destroy(rgn); - return new Rectangle(rect.x, rect.y, rect.width, rect.height); - } -} - -/** - * Sets the region managed by the argument to the current - * clipping region of the receiver. - * - * @param region the region to fill with the clipping region - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the region is null</li> - * <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 /*long*/ hRegion = region.handle; - OS.gdk_region_subtract(hRegion, hRegion); - int /*long*/ clipRgn = data.clipRgn; - if (clipRgn == 0) { - int[] width = new int[1], height = new int[1]; - OS.gdk_drawable_get_size(data.drawable, width, height); - GdkRectangle rect = new GdkRectangle(); - rect.x = rect.y = 0; - rect.width = width[0]; - rect.height = height[0]; - OS.gdk_region_union_with_rect(hRegion, rect); - } else { - OS.gdk_region_union(hRegion, clipRgn); - int /*long*/ cairo = data.cairo; - if (cairo != 0) { - double[] matrix = new double[]{1, 0, 0, 1, 0, 0}; - Cairo.cairo_get_matrix(cairo, matrix); - if (!isIdentity(matrix)) return; - } - } - if (data.damageRgn != 0) { - OS.gdk_region_intersect(hRegion, data.damageRgn); - } -} - -/** - * 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); - int /*long*/ cairo = data.cairo; - if (cairo == 0) return SWT.FILL_EVEN_ODD; - return Cairo.cairo_get_fill_rule(cairo) == Cairo.CAIRO_FILL_RULE_WINDING ? SWT.FILL_WINDING : 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 Font.gtk_new(data.device, 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); - if (data.context == 0) createLayout(); - int /*long*/ context = data.context; - int /*long*/ lang = OS.pango_context_get_language(context); - int /*long*/ metrics = OS.pango_context_get_metrics(context, data.font, lang); - FontMetrics fm = new FontMetrics(); - fm.ascent = OS.PANGO_PIXELS(OS.pango_font_metrics_get_ascent(metrics)); - fm.descent = OS.PANGO_PIXELS(OS.pango_font_metrics_get_descent(metrics)); - fm.averageCharWidth = OS.PANGO_PIXELS(OS.pango_font_metrics_get_approximate_char_width(metrics)); - fm.height = fm.ascent + fm.descent; - OS.pango_font_metrics_unref(metrics); - return fm; -} - -/** - * 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_WIDGET_DISPOSED); - GdkGCValues values = new GdkGCValues(); - OS.gdk_gc_get_values(handle, values); - GdkColor color = new GdkColor(); - color.pixel = values.foreground_pixel; - int /*long*/ colormap = OS.gdk_colormap_get_system(); - OS.gdk_colormap_query_color(colormap, color.pixel, color); - return Color.gtk_new(data.device, color); -} - -/** - * 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 data.foregroundPattern; -} - -/** - * 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 - */ -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 data.interpolation; -} - -/** - * 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); - GdkGCValues values = new GdkGCValues(); - OS.gdk_gc_get_values(handle, values); - int cap = SWT.CAP_FLAT; - switch (values.cap_style) { - case OS.GDK_CAP_ROUND: cap = SWT.CAP_ROUND; break; - case OS.GDK_CAP_BUTT: cap = SWT.CAP_FLAT; break; - case OS.GDK_CAP_PROJECTING: cap = SWT.CAP_SQUARE; break; - } - return cap; -} - -/** - * Returns the receiver's line dash style. The default value is - * <code>null</code>. - * - * @return the lin 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); - int[] dash_list = data.dashes; - if (dash_list == null) return null; - int[] dashes = new int[dash_list.length]; - System.arraycopy(dash_list, 0, dashes, 0, dashes.length); - 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); - GdkGCValues values = new GdkGCValues(); - OS.gdk_gc_get_values(handle, values); - int join = SWT.JOIN_MITER; - switch (values.join_style) { - case OS.GDK_JOIN_MITER: join = SWT.JOIN_MITER; break; - case OS.GDK_JOIN_ROUND: join = SWT.JOIN_ROUND; break; - case OS.GDK_JOIN_BEVEL: join = SWT.JOIN_BEVEL; break; - } - return join; -} - -/** - * 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); - GdkGCValues values = new GdkGCValues(); - OS.gdk_gc_get_values(handle, values); - return values.line_width; -} - -/** - * 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); - if (data.cairo == 0) return SWT.DEFAULT; - int /*long*/ options = Cairo.cairo_font_options_create(); - Cairo.cairo_get_font_options(data.cairo, options); - int antialias = Cairo.cairo_font_options_get_antialias(options); - Cairo.cairo_font_options_destroy(options); - switch (antialias) { - case Cairo.CAIRO_ANTIALIAS_DEFAULT: return SWT.DEFAULT; - case Cairo.CAIRO_ANTIALIAS_NONE: return SWT.OFF; - case Cairo.CAIRO_ANTIALIAS_GRAY: - case Cairo.CAIRO_ANTIALIAS_SUBPIXEL: return SWT.ON; - } - 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); - int /*long*/ cairo = data.cairo; - if (cairo != 0) { - Cairo.cairo_get_matrix(cairo, transform.handle); - } else { - transform.setElements(1, 0, 0, 1, 0, 0); - } -} - -/** - * 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); - GdkGCValues values = new GdkGCValues(); - OS.gdk_gc_get_values(handle, values); - return values.function == OS.GDK_XOR; -} - -/** - * 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 (int)/*64*/handle; -} - -void init(Drawable drawable, GCData data, int /*long*/ gdkGC) { - GdkColor foreground = data.foreground; - if (foreground != null) OS.gdk_gc_set_foreground(gdkGC, foreground); - GdkColor background = data.background; - if (background != null) OS.gdk_gc_set_background(gdkGC, background); - - Image image = data.image; - if (image != null) { - image.memGC = this; - /* - * The transparent pixel mask might change when drawing on - * the image. Destroy it so that it is regenerated when - * necessary. - */ - if (image.transparentPixel != -1) image.destroyMask(); - } - this.drawable = drawable; - this.data = data; - handle = gdkGC; -} - -void initCairo() { - data.device.checkCairo(); - int /*long*/ cairo = data.cairo; - if (cairo != 0) return; - int /*long*/ xDisplay = OS.GDK_DISPLAY(); - int /*long*/ xVisual = OS.gdk_x11_visual_get_xvisual(OS.gdk_visual_get_system()); - int /*long*/ xDrawable = 0; - int translateX = 0, translateY = 0; - int /*long*/ drawable = data.drawable; - if (data.image != null) { - xDrawable = OS.GDK_PIXMAP_XID(drawable); - } else { - int[] x = new int[1], y = new int[1]; - int /*long*/ [] real_drawable = new int /*long*/ [1]; - OS.gdk_window_get_internal_paint_info(drawable, real_drawable, x, y); - xDrawable = OS.gdk_x11_drawable_get_xid(real_drawable[0]); - translateX = -x[0]; - translateY = -y[0]; - } - int[] w = new int[1], h = new int[1]; - OS.gdk_drawable_get_size(drawable, w, h); - int width = w[0], height = h[0]; - int /*long*/ surface = Cairo.cairo_xlib_surface_create(xDisplay, xDrawable, xVisual, width, height); - if (surface == 0) SWT.error(SWT.ERROR_NO_HANDLES); - Cairo.cairo_surface_set_device_offset(surface, translateX, translateY); - data.cairo = cairo = Cairo.cairo_create(surface); - Cairo.cairo_surface_destroy(surface); - if (cairo == 0) SWT.error(SWT.ERROR_NO_HANDLES); - Cairo.cairo_set_fill_rule(cairo, Cairo.CAIRO_FILL_RULE_EVEN_ODD); - GdkGCValues values = new GdkGCValues(); - OS.gdk_gc_get_values(handle, values); - GdkColor color = new GdkColor(); - color.pixel = values.foreground_pixel; - int /*long*/ colormap = OS.gdk_colormap_get_system(); - OS.gdk_colormap_query_color(colormap, color.pixel, color); - Cairo.cairo_set_source_rgba(cairo, (color.red & 0xFFFF) / (float)0xFFFF, (color.green & 0xFFFF) / (float)0xFFFF, (color.blue & 0xFFFF) / (float)0xFFFF, data.alpha / (float)0xFF); - Cairo.cairo_set_line_width(cairo, Math.max(1, values.line_width)); - int cap = Cairo.CAIRO_LINE_CAP_BUTT; - switch (values.cap_style) { - case OS.GDK_CAP_ROUND: cap = Cairo.CAIRO_LINE_CAP_ROUND; break; - case OS.GDK_CAP_BUTT: cap = Cairo.CAIRO_LINE_CAP_BUTT; break; - case OS.GDK_CAP_PROJECTING: cap = Cairo.CAIRO_LINE_CAP_SQUARE; break; - } - Cairo.cairo_set_line_cap(cairo, cap); - int join = Cairo.CAIRO_LINE_JOIN_MITER; - switch (values.join_style) { - case OS.GDK_JOIN_MITER: join = Cairo.CAIRO_LINE_JOIN_MITER; break; - case OS.GDK_JOIN_ROUND: join = Cairo.CAIRO_LINE_JOIN_ROUND; break; - case OS.GDK_JOIN_BEVEL: join = Cairo.CAIRO_LINE_JOIN_BEVEL; break; - } - Cairo.cairo_set_line_join(cairo, join); - if (data.dashes != null) { - double[] dashes = new double[data.dashes.length]; - for (int i = 0; i < dashes.length; i++) { - dashes[i] = data.dashes[i]; - } - Cairo.cairo_set_dash(cairo, dashes, dashes.length, 0); - } - if (OS.GTK_VERSION < OS.VERSION(2, 8, 0)) { - setCairoFont(cairo, data.font); - } - setCairoClip(cairo, data.clipRgn); -} - -/** - * 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.clipRgn != 0; -} - -/** - * Returns <code>true</code> if the GC has been disposed, - * and <code>false</code> otherwise. - * <p> - * This method gets the dispose state for the GC. - * When a GC has been disposed, it is an error to - * invoke any other method using the GC. - * - * @return <code>true</code> when the GC is disposed and <code>false</code> otherwise - */ -public boolean isDisposed() { - return handle == 0; -} - -boolean isIdentity(double[] matrix) { - if (matrix == null) return true; - return matrix[0] == 1 && matrix[1] == 0 && matrix[2] == 0 && matrix[3] == 1 && matrix[4] == 0 && matrix[5] == 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 #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 && data.cairo != 0) return; - if (advanced) { - try { - initCairo(); - } catch (SWTException e) {} - } else { - int /*long*/ cairo = data.cairo; - if (cairo != 0) Cairo.cairo_destroy(cairo); - data.cairo = 0; - data.interpolation = SWT.DEFAULT; - data.backgroundPattern = data.foregroundPattern = null; - setClipping(0); - } -} - -/** - * Sets the receiver's alpha value. - * - * @param alpha the alpha value - * - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - * - * @since 3.1 - */ -public void setAlpha(int alpha) { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - if (data.cairo == 0 && (alpha & 0xff) == 0xff) return; - initCairo(); - data.alpha = alpha & 0xff; - if (data.foregroundPattern == null) { - GdkGCValues values = new GdkGCValues(); - OS.gdk_gc_get_values(handle, values); - GdkColor color = new GdkColor(); - color.pixel = values.foreground_pixel; - int /*long*/ colormap = OS.gdk_colormap_get_system(); - OS.gdk_colormap_query_color(colormap, color.pixel, color); - int /*long*/ cairo = data.cairo; - Cairo.cairo_set_source_rgba(cairo, (color.red & 0xFFFF) / (float)0xFFFF, (color.green & 0xFFFF) / (float)0xFFFF, (color.blue & 0xFFFF) / (float)0xFFFF, data.alpha / (float)0xFF); - } -} - -/** - * 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. - * - * @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> - * </ul> - * - * @see #setTextAntialias - * - * @since 3.1 - */ -public void setAntialias(int antialias) { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - if (data.cairo == 0 && antialias == SWT.DEFAULT) return; - int mode = 0; - switch (antialias) { - case SWT.DEFAULT: mode = Cairo.CAIRO_ANTIALIAS_DEFAULT; break; - case SWT.OFF: mode = Cairo.CAIRO_ANTIALIAS_NONE; break; - case SWT.ON: mode = Cairo.CAIRO_ANTIALIAS_GRAY; - break; - default: - SWT.error(SWT.ERROR_INVALID_ARGUMENT); - } - initCairo(); - int /*long*/ cairo = data.cairo; - Cairo.cairo_set_antialias(cairo, mode); -} - -/** - * 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); - OS.gdk_gc_set_background(handle, color.handle); - data.backgroundPattern = null; -} - -/** - * Sets the background pattern. The default value is <code>null</code>. - * - * @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> - * </ul> - * - * @see Pattern - * - * @since 3.1 - */ -public void setBackgroundPattern(Pattern pattern) { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - if (pattern != null && pattern.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT); - if (data.cairo == 0 && pattern == null) return; - initCairo(); - data.backgroundPattern = pattern; -} - -static void setCairoFont(int /*long*/ cairo, Font font) { - setCairoFont(cairo, font.handle); -} - -static void setCairoFont(int /*long*/ cairo, int /*long*/ font) { - int /*long*/ family = OS.pango_font_description_get_family(font); - int length = OS.strlen(family); - byte[] buffer = new byte[length + 1]; - OS.memmove(buffer, family, length); - //TODO - convert font height from pango to cairo - double height = OS.PANGO_PIXELS(OS.pango_font_description_get_size(font)) * 96 / 72; - int pangoStyle = OS.pango_font_description_get_style(font); - int pangoWeight = OS.pango_font_description_get_weight(font); - int slant = Cairo.CAIRO_FONT_SLANT_NORMAL; - if (pangoStyle == OS.PANGO_STYLE_ITALIC) slant = Cairo.CAIRO_FONT_SLANT_ITALIC; - if (pangoStyle == OS.PANGO_STYLE_OBLIQUE) slant = Cairo.CAIRO_FONT_SLANT_OBLIQUE; - int weight = Cairo.CAIRO_FONT_WEIGHT_NORMAL; - if (pangoWeight == OS.PANGO_WEIGHT_BOLD) weight = Cairo.CAIRO_FONT_WEIGHT_BOLD; - Cairo.cairo_select_font_face(cairo, buffer, slant, weight); - Cairo.cairo_set_font_size(cairo, height); -} - -static void setCairoClip(int /*long*/ cairo, int /*long*/ clipRgn) { - Cairo.cairo_reset_clip(cairo); - if (clipRgn == 0) return; - int[] nRects = new int[1]; - int /*long*/[] rects = new int /*long*/[1]; - OS.gdk_region_get_rectangles(clipRgn, rects, nRects); - GdkRectangle rect = new GdkRectangle(); - for (int i=0; i<nRects[0]; i++) { - OS.memmove(rect, rects[0] + (i * GdkRectangle.sizeof), GdkRectangle.sizeof); - Cairo.cairo_rectangle(cairo, rect.x, rect.y, rect.width, rect.height); - } - Cairo.cairo_clip(cairo); - Cairo.cairo_new_path(cairo); - if (rects[0] != 0) OS.g_free(rects[0]); -} - -static void setCairoPatternColor(int /*long*/ pattern, int offset, Color c, int alpha) { - GdkColor color = c.handle; - double aa = (alpha & 0xFF) / (double)0xFF; - double red = ((color.red & 0xFFFF) / (double)0xFFFF); - double green = ((color.green & 0xFFFF) / (double)0xFFFF); - double blue = ((color.blue & 0xFFFF) / (double)0xFFFF); - Cairo.cairo_pattern_add_color_stop_rgba(pattern, offset, red, green, blue, aa); -} - -void setClipping(int /*long*/ clipRgn) { - if (clipRgn == 0) { - if (data.clipRgn != 0) { - OS.gdk_region_destroy(data.clipRgn); - data.clipRgn = 0; - } else { - return; - } - int /*long*/ clipping = data.damageRgn != 0 ? data.damageRgn : 0; - OS.gdk_gc_set_clip_region(handle, clipping); - } else { - if (data.clipRgn == 0) data.clipRgn = OS.gdk_region_new(); - OS.gdk_region_subtract(data.clipRgn, data.clipRgn); - OS.gdk_region_union(data.clipRgn, clipRgn); - int /*long*/ clipping = clipRgn; - if (data.damageRgn != 0) { - clipping = OS.gdk_region_new(); - OS.gdk_region_union(clipping, clipRgn); - OS.gdk_region_intersect(clipping, data.damageRgn); - } - OS.gdk_gc_set_clip_region(handle, clipping); - if (clipping != clipRgn) OS.gdk_region_destroy(clipping); - } - int /*long*/ cairo = data.cairo; - if (cairo != 0) { - setCairoClip(cairo, clipRgn); - } -} - -/** - * 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; - } - GdkRectangle rect = new GdkRectangle(); - rect.x = x; - rect.y = y; - rect.width = width; - rect.height = height; - int /*long*/ clipRgn = OS.gdk_region_new(); - OS.gdk_region_union_with_rect(clipRgn, rect); - setClipping(clipRgn); - OS.gdk_region_destroy(clipRgn); -} - -/** - * Sets the area of the receiver which can be changed - * by drawing operations to the path specified - * by the argument. - * - * @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> - * </ul> - * - * @see Path - * - * @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); - setClipping(0); - if (path != null) { - initCairo(); - int /*long*/ cairo = data.cairo; - int /*long*/ copy = Cairo.cairo_copy_path(path.handle); - if (copy == 0) SWT.error(SWT.ERROR_NO_HANDLES); - Cairo.cairo_append_path(cairo, copy); - Cairo.cairo_path_destroy(copy); - Cairo.cairo_clip(cairo); - Cairo.cairo_new_path(cairo); - } -} - -/** - * 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) { - setClipping(0); - } 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); - setClipping(region != null ? region.handle : 0); -} - -/** - * 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 = data.device.systemFont; - if (font.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT); - int /*long*/ fontHandle = data.font = font.handle; - if (data.layout != 0) { - OS.pango_layout_set_font_description(data.layout, fontHandle); - } - data.stringWidth = data.stringHeight = -1; - if (OS.GTK_VERSION < OS.VERSION(2, 8, 0)) { - int /*long*/ cairo = data.cairo; - if (cairo != 0) { - setCairoFont(cairo, fontHandle); - } - } -} - -/** - * 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); - int cairo_mode = Cairo.CAIRO_FILL_RULE_EVEN_ODD; - switch (rule) { - case SWT.FILL_WINDING: - cairo_mode = Cairo.CAIRO_FILL_RULE_WINDING; break; - case SWT.FILL_EVEN_ODD: - cairo_mode = Cairo.CAIRO_FILL_RULE_EVEN_ODD; break; - default: - SWT.error(SWT.ERROR_INVALID_ARGUMENT); - } - //TODO - need fill rule in X, GDK has no API - initCairo(); - int /*long*/ cairo = data.cairo; - if (cairo != 0) { - Cairo.cairo_set_fill_rule(cairo, cairo_mode); - } -} - -/** - * 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); - OS.gdk_gc_set_foreground(handle, color.handle); - int /*long*/ cairo = data.cairo; - if (cairo != 0) { - GdkColor gdkColor = color.handle; - Cairo.cairo_set_source_rgba(cairo, (gdkColor.red & 0xFFFF) / (float)0xFFFF, (gdkColor.green & 0xFFFF) / (float)0xFFFF, (gdkColor.blue & 0xFFFF) / (float)0xFFFF, data.alpha / (float)0xFF); - } - data.foregroundPattern = null; -} - -/** - * Sets the foreground pattern. The default value is <code>null</code>. - * - * @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> - * </ul> - * - * @see Pattern - * - * @since 3.1 - */ -public void setForegroundPattern(Pattern pattern) { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - if (pattern != null && pattern.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT); - if (data.cairo == 0 && pattern == null) return; - initCairo(); - int /*long*/ cairo = data.cairo; - if (pattern != null) { - Cairo.cairo_set_source(cairo, pattern.handle); - } else { - GdkGCValues values = new GdkGCValues(); - OS.gdk_gc_get_values(handle, values); - GdkColor color = new GdkColor(); - color.pixel = values.foreground_pixel; - int /*long*/ colormap = OS.gdk_colormap_get_system(); - OS.gdk_colormap_query_color(colormap, color.pixel, color); - Cairo.cairo_set_source_rgba(cairo, (color.red & 0xFFFF) / (float)0xFFFF, (color.green & 0xFFFF) / (float)0xFFFF, (color.blue & 0xFFFF) / (float)0xFFFF, data.alpha / (float)0xFF); - } - data.foregroundPattern = pattern; -} - -/** - * 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>. - * - * @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> - * </ul> - * - * @since 3.1 - */ -public void setInterpolation(int interpolation) { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - if (data.cairo == 0 && interpolation == SWT.DEFAULT) return; - switch (interpolation) { - case SWT.DEFAULT: - case SWT.NONE: - case SWT.LOW: - case SWT.HIGH: - break; - default: - SWT.error(SWT.ERROR_INVALID_ARGUMENT); - } - initCairo(); - data.interpolation = interpolation; -} - -/** - * 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); - int cap_style = 0, cairo_style = 0; - switch (cap) { - case SWT.CAP_ROUND: - cap_style = OS.GDK_CAP_ROUND; - cairo_style = Cairo.CAIRO_LINE_CAP_ROUND; - break; - case SWT.CAP_FLAT: - cap_style = OS.GDK_CAP_BUTT; - cairo_style = Cairo.CAIRO_LINE_CAP_BUTT; - break; - case SWT.CAP_SQUARE: - cap_style = OS.GDK_CAP_PROJECTING; - cairo_style = Cairo.CAIRO_LINE_CAP_SQUARE; - break; - default: - SWT.error(SWT.ERROR_INVALID_ARGUMENT); - } - GdkGCValues values = new GdkGCValues(); - OS.gdk_gc_get_values(handle, values); - int line_style = data.lineStyle == SWT.LINE_SOLID ? OS.GDK_LINE_SOLID : OS.GDK_LINE_ON_OFF_DASH; - OS.gdk_gc_set_line_attributes(handle, values.line_width, line_style, cap_style, values.join_style); - int /*long*/ cairo = data.cairo; - if (cairo != 0) { - Cairo.cairo_set_line_cap(cairo, cairo_style); - } -} - -/** - * 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[] dash_list = new byte[dashes.length]; - for (int i = 0; i < dashes.length; i++) { - int dash = dashes[i]; - if (dash <= 0) SWT.error(SWT.ERROR_INVALID_ARGUMENT); - dash_list[i] = (byte)dash; - } - OS.gdk_gc_set_dashes(handle, 0, dash_list, dash_list.length); - data.dashes = new int[dashes.length]; - System.arraycopy(dashes, 0, data.dashes, 0, dashes.length); - data.lineStyle = SWT.LINE_CUSTOM; - } else { - data.dashes = null; - data.lineStyle = SWT.LINE_SOLID; - } - GdkGCValues values = new GdkGCValues(); - OS.gdk_gc_get_values(handle, values); - int line_style = data.lineStyle == SWT.LINE_SOLID ? OS.GDK_LINE_SOLID : OS.GDK_LINE_ON_OFF_DASH; - OS.gdk_gc_set_line_attributes(handle, values.line_width, line_style, values.cap_style, values.join_style); - int /*long*/ cairo = data.cairo; - if (cairo != 0) { - if (data.dashes != null) { - double[] cairoDashes = new double[data.dashes.length]; - for (int i = 0; i < dashes.length; i++) { - cairoDashes[i] = data.dashes[i]; - } - Cairo.cairo_set_dash(cairo, cairoDashes, cairoDashes.length, 0); - } else { - Cairo.cairo_set_dash(cairo, null, 0, 0); - } - } -} - -/** - * 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); - int join_style = 0, cairo_style = 0; - switch (join) { - case SWT.JOIN_MITER: - join_style = OS.GDK_JOIN_MITER; - cairo_style = Cairo.CAIRO_LINE_JOIN_MITER; - break; - case SWT.JOIN_ROUND: - join_style = OS.GDK_JOIN_ROUND; - cairo_style = Cairo.CAIRO_LINE_JOIN_ROUND; - break; - case SWT.JOIN_BEVEL: - join_style = OS.GDK_JOIN_BEVEL; - cairo_style = Cairo.CAIRO_LINE_JOIN_BEVEL; - break; - default: - SWT.error(SWT.ERROR_INVALID_ARGUMENT); - } - GdkGCValues values = new GdkGCValues(); - OS.gdk_gc_get_values(handle, values); - int line_style = data.lineStyle == SWT.LINE_SOLID ? OS.GDK_LINE_SOLID : OS.GDK_LINE_ON_OFF_DASH; - OS.gdk_gc_set_line_attributes(handle, values.line_width, line_style, values.cap_style, join_style); - int /*long*/ cairo = data.cairo; - if (cairo != 0) { - Cairo.cairo_set_line_join(cairo, cairo_style); - } -} - -/** - * 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); - GdkGCValues values = new GdkGCValues(); - OS.gdk_gc_get_values(handle, values); - int[] dashes = null; - int width = values.line_width; - switch (lineStyle) { - case SWT.LINE_SOLID: - break; - case SWT.LINE_DASH: - dashes = width != 0 ? LINE_DASH : LINE_DASH_ZERO; - break; - case SWT.LINE_DOT: - dashes = width != 0 ? LINE_DOT : LINE_DOT_ZERO; - break; - case SWT.LINE_DASHDOT: - dashes = width != 0 ? LINE_DASHDOT : LINE_DASHDOT_ZERO; - break; - case SWT.LINE_DASHDOTDOT: - dashes = width != 0 ? LINE_DASHDOTDOT : LINE_DASHDOTDOT_ZERO; - break; - case SWT.LINE_CUSTOM: - dashes = data.dashes; - if (dashes == null) lineStyle = SWT.LINE_SOLID; - break; - default: - SWT.error(SWT.ERROR_INVALID_ARGUMENT); - } - data.lineStyle = lineStyle; - OS.gdk_gc_set_line_attributes(handle, values.line_width, dashes != null ? OS.GDK_LINE_ON_OFF_DASH : OS.GDK_LINE_SOLID, values.cap_style, values.join_style); - if (dashes != null) { - byte[] dash_list = new byte[dashes.length]; - for (int i = 0; i < dash_list.length; i++) { - dash_list[i] = (byte)(width == 0 ? dashes[i] : dashes[i] * width); - } - OS.gdk_gc_set_dashes(handle, 0, dash_list, dash_list.length); - } - int /*long*/ cairo = data.cairo; - if (cairo != 0) { - if (dashes != null) { - double[] cairoDashes = new double[dashes.length]; - for (int i = 0; i < cairoDashes.length; i++) { - cairoDashes[i] = width == 0 ? dashes[i] : dashes[i] * width; - } - Cairo.cairo_set_dash(cairo, cairoDashes, cairoDashes.length, 0); - } else { - Cairo.cairo_set_dash(cairo, null, 0, 0); - } - } -} - -/** - * 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); - GdkGCValues values = new GdkGCValues(); - OS.gdk_gc_get_values(handle, values); - int line_style = data.lineStyle == SWT.LINE_SOLID ? OS.GDK_LINE_SOLID : OS.GDK_LINE_ON_OFF_DASH; - OS.gdk_gc_set_line_attributes(handle, lineWidth, line_style, values.cap_style, values.join_style); - data.lineWidth = lineWidth; - int /*long*/ cairo = data.cairo; - if (cairo != 0) { - Cairo.cairo_set_line_width(cairo, Math.max (1, lineWidth)); - } - switch (data.lineStyle) { - case SWT.LINE_DOT: - case SWT.LINE_DASH: - case SWT.LINE_DASHDOT: - case SWT.LINE_DASHDOTDOT: - setLineStyle(data.lineStyle); - } -} - -void setString(String string, int flags) { - if (data.layout == 0) createLayout(); - if (string == data.string && (flags & ~SWT.DRAW_TRANSPARENT) == (data.drawFlags & ~SWT.DRAW_TRANSPARENT)) { - return; - } - byte[] buffer; - int mnemonic, length = string.length (); - int /*long*/ layout = data.layout; - char[] text = new char[length]; - string.getChars(0, length, text, 0); - if ((flags & SWT.DRAW_MNEMONIC) != 0 && (mnemonic = fixMnemonic(text)) != -1) { - char[] text1 = new char[mnemonic - 1]; - System.arraycopy(text, 0, text1, 0, text1.length); - byte[] buffer1 = Converter.wcsToMbcs(null, text1, false); - char[] text2 = new char[text.length - mnemonic]; - System.arraycopy(text, mnemonic - 1, text2, 0, text2.length); - byte[] buffer2 = Converter.wcsToMbcs(null, text2, false); - buffer = new byte[buffer1.length + buffer2.length]; - System.arraycopy(buffer1, 0, buffer, 0, buffer1.length); - System.arraycopy(buffer2, 0, buffer, buffer1.length, buffer2.length); - int /*long*/ attr_list = OS.pango_attr_list_new(); - int /*long*/ attr = OS.pango_attr_underline_new(OS.PANGO_UNDERLINE_LOW); - PangoAttribute attribute = new PangoAttribute(); - OS.memmove(attribute, attr, PangoAttribute.sizeof); - attribute.start_index = buffer1.length; - attribute.end_index = buffer1.length + 1; - OS.memmove(attr, attribute, PangoAttribute.sizeof); - OS.pango_attr_list_insert(attr_list, attr); - OS.pango_layout_set_attributes(layout, attr_list); - OS.pango_attr_list_unref(attr_list); - } else { - buffer = Converter.wcsToMbcs(null, text, false); - OS.pango_layout_set_attributes(layout, 0); - } - OS.pango_layout_set_text(layout, buffer, buffer.length); - OS.pango_layout_set_single_paragraph_mode(layout, (flags & SWT.DRAW_DELIMITER) == 0); - OS.pango_layout_set_tabs(layout, (flags & SWT.DRAW_TAB) != 0 ? 0 : data.device.emptyTab); - data.string = string; - data.stringWidth = data.stringHeight = -1; - data.drawFlags = flags; -} - -/** - * 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. - * - * @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> - * </ul> - * - * @see #setAntialias - * - * @since 3.1 - */ -public void setTextAntialias(int antialias) { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - if (data.cairo == 0 && antialias == SWT.DEFAULT) return; - int mode = 0; - switch (antialias) { - case SWT.DEFAULT: mode = Cairo.CAIRO_ANTIALIAS_DEFAULT; break; - case SWT.OFF: mode = Cairo.CAIRO_ANTIALIAS_NONE; break; - case SWT.ON: mode = Cairo.CAIRO_ANTIALIAS_GRAY; - break; - default: - SWT.error(SWT.ERROR_INVALID_ARGUMENT); - } - initCairo(); - int /*long*/ options = Cairo.cairo_font_options_create(); - Cairo.cairo_font_options_set_antialias(options, mode); - Cairo.cairo_set_font_options(data.cairo, options); - Cairo.cairo_font_options_destroy(options); -} - -/** - * 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. - * - * @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> - * </ul> - * - * @see Transform - * - * @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 (data.cairo == 0 && transform == null) return; - initCairo(); - int /*long*/ cairo = data.cairo; - if (transform != null) { - Cairo.cairo_set_matrix(cairo, transform.handle); - } else { - Cairo.cairo_identity_matrix(cairo); - } - //TODO - round off problems - int /*long*/ clipRgn = data.clipRgn; - if (clipRgn != 0) { - double[] matrix = new double[]{1, 0, 0, 1, 0, 0}; - Cairo.cairo_get_matrix(cairo, matrix); - Cairo.cairo_matrix_invert(matrix); - int /*long*/ newRgn = OS.gdk_region_new(); - int[] nRects = new int[1]; - int /*long*/[] rects = new int /*long*/[1]; - OS.gdk_region_get_rectangles(clipRgn, rects, nRects); - GdkRectangle rect = new GdkRectangle(); - int[] pointArray = new int[8]; - double[] x = new double[1], y = new double[1]; - for (int i=0; i<nRects[0]; i++) { - OS.memmove(rect, rects[0] + (i * GdkRectangle.sizeof), GdkRectangle.sizeof); - x[0] = rect.x; - y[0] = rect.y; - Cairo.cairo_matrix_transform_point(matrix, x, y); - pointArray[0] = (int)Math.round(x[0]); - pointArray[1] = (int)Math.round(y[0]); - x[0] = rect.x + rect.width; - y[0] = rect.y; - Cairo.cairo_matrix_transform_point(matrix, x, y); - pointArray[2] = (int)Math.round(x[0]); - pointArray[3] = (int)Math.round(y[0]); - x[0] = rect.x + rect.width; - y[0] = rect.y + rect.height; - Cairo.cairo_matrix_transform_point(matrix, x, y); - pointArray[4] = (int)Math.round(x[0]); - pointArray[5] = (int)Math.round(y[0]); - x[0] = rect.x; - y[0] = rect.y + rect.height; - Cairo.cairo_matrix_transform_point(matrix, x, y); - pointArray[6] = (int)Math.round(x[0]); - pointArray[7] = (int)Math.round(y[0]); - int /*long*/ polyRgn = OS.gdk_region_polygon(pointArray, pointArray.length / 2, OS.GDK_EVEN_ODD_RULE); - OS.gdk_region_union(newRgn, polyRgn); - OS.gdk_region_destroy(polyRgn); - } - if (rects[0] != 0) OS.g_free(rects[0]); - OS.gdk_region_destroy(clipRgn); - data.clipRgn = newRgn; - } -} - -/** - * 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); - OS.gdk_gc_set_function(handle, xor ? OS.GDK_XOR : OS.GDK_COPY); - data.xorMode = xor; -} - -/** - * Returns the extent of the given string. No tab - * expansion or carriage return processing will be performed. - * <p> - * The <em>extent</em> of a string is the width and height of - * the rectangular area it would cover if drawn in a particular - * font (in this case, the current font in the receiver). - * </p> - * - * @param string the string to measure - * @return a point containing the extent of the string - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the string is null</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - */ -public Point stringExtent(String string) { - return textExtent(string, 0); -} - -/** - * Returns the extent of the given string. Tab expansion and - * carriage return processing are performed. - * <p> - * The <em>extent</em> of a string is the width and height of - * the rectangular area it would cover if drawn in a particular - * font (in this case, the current font in the receiver). - * </p> - * - * @param string the string to measure - * @return a point containing the extent of the string - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the string is null</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - */ -public Point textExtent(String string) { - return textExtent(string, SWT.DRAW_DELIMITER | SWT.DRAW_TAB); -} - -/** - * Returns the extent of the given string. Tab expansion, line - * delimiter and mnemonic processing are performed according to - * the specified flags, which can be a combination of: - * <dl> - * <dt><b>DRAW_DELIMITER</b></dt> - * <dd>draw multiple lines</dd> - * <dt><b>DRAW_TAB</b></dt> - * <dd>expand tabs</dd> - * <dt><b>DRAW_MNEMONIC</b></dt> - * <dd>underline the mnemonic character</dd> - * <dt><b>DRAW_TRANSPARENT</b></dt> - * <dd>transparent background</dd> - * </dl> - * <p> - * The <em>extent</em> of a string is the width and height of - * the rectangular area it would cover if drawn in a particular - * font (in this case, the current font in the receiver). - * </p> - * - * @param string the string to measure - * @param flags the flags specifing how to process the text - * @return a point containing the extent of the string - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the string is null</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - */ -public Point textExtent(String string, int flags) { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - if (string == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); - int /*long*/ cairo = data.cairo; - if (cairo != 0) { - if (OS.GTK_VERSION < OS.VERSION(2, 8, 0)) { - //TODO - honor flags - byte[] buffer = Converter.wcsToMbcs(null, string, true); - cairo_font_extents_t font_extents = new cairo_font_extents_t(); - Cairo.cairo_font_extents(cairo, font_extents); - cairo_text_extents_t extents = new cairo_text_extents_t(); - Cairo.cairo_text_extents(cairo, buffer, extents); - return new Point((int)extents.width, (int)font_extents.height); - } - } - setString(string, flags); - if (data.stringWidth != -1) return new Point(data.stringWidth, data.stringHeight); - int[] width = new int[1], height = new int[1]; - OS.pango_layout_get_size(data.layout, width, height); - return new Point(data.stringWidth = OS.PANGO_PIXELS(width[0]), data.stringHeight = OS.PANGO_PIXELS(height[0])); -} - -/** - * 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 + "}"; -} - -} |