--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/javauis/eswt_qt/org.eclipse.swt/Eclipse_SWT_PI/qt/org/eclipse/swt/internal/qt/graphics/GraphicsContext.java Mon May 03 12:27:20 2010 +0300
@@ -0,0 +1,2421 @@
+/*******************************************************************************
+ * Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
+ * 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:
+ * Nokia Corporation - initial implementation
+ *******************************************************************************/
+package org.eclipse.swt.internal.qt.graphics;
+import java.util.Vector;
+
+import org.eclipse.swt.widgets.Internal_PackageSupport;
+import org.eclipse.swt.widgets.Widget;
+
+public final class GraphicsContext {
+
+ // These must be in sync with graphics.h
+
+ // Rectangle index
+ /**
+ * Rectangle data array's <code>x</code> index
+ * @see #getClip
+ * @see #getTextBoundingBox
+ */
+ public final static int RECT_X = 0;
+
+ /**
+ * Rectangle data array's <code>y</code> index
+ * @see #getClip
+ * @see #getTextBoundingBox
+ */
+ public final static int RECT_Y = 1;
+
+ /**
+ * Rectangle data array's <code>width</code> index
+ * @see #getClip
+ * @see #getTextBoundingBox
+ */
+ public final static int RECT_WIDTH = 2;
+
+ /**
+ * Rectangle data array's <code>height</code> index
+ * @see #getClip
+ * @see #getTextBoundingBox
+ */
+ public final static int RECT_HEIGHT = 3;
+
+ // Blending modes
+ /**
+ * Constant for Source blending mode. The destination's color and
+ * alpha values are replaced with those of source.
+ */
+ public static final int BLENDING_MODE_SRC = 10;
+
+ /**
+ * Constant for Source over blending mode. The source is composed over destination.
+ */
+ public static final int BLENDING_MODE_SRC_OVER = 11;
+
+ /**
+ * Constant for XOR blending mode. The resulting color in the destination is
+ * the exclusive or of the color values in the source and the destination.
+ */
+ public static final int BLENDING_MODE_XOR = 12;
+
+ // Stroke styles
+ /**
+ * Stroke style is not set.
+ */
+ public static final int STROKE_NO = 0;
+
+ /**
+ * Solid stroke.
+ */
+ public static final int STROKE_SOLID = 1;
+
+ /**
+ * Dotted stroke
+ */
+ public static final int STROKE_DOT = 2;
+
+ /**
+ * Dash stroke
+ */
+ public static final int STROKE_DASH = 3;
+
+ /**
+ * Dash-dot stroke
+ */
+ public static final int STROKE_DASH_DOT = 4;
+
+ /**
+ * Dash-dot-dot stroke
+ */
+ public static final int STROKE_DASH_DOT_DOT = 5;
+
+ // Text flags
+ /**
+ * One line. Whitespaces are threated as spaces.
+ * NOTE: TEXT_SINGLE_LINE and TEXT_WORD_WRAP cannot be combined.
+ * @see TEXT_WORD_WRAP
+ */
+ public static final int TEXT_SINGLE_LINE = 0x0100;
+
+ /**
+ * Prints outside of the given bounds if needed
+ */
+ public static final int TEXT_DONT_CLIP = 0x0200;
+
+ /**
+ * Expand tabs
+ */
+ public static final int TEXT_EXPAND_TABS = 0x0400;
+
+ /**
+ * Underline the mnemonic character
+ */
+ public static final int TEXT_SHOW_MNEMONIC = 0x0800;
+
+ /**
+ * Breaks lines at appropriate points
+ * NOTE: TEXT_SINGLE_LINE and TEXT_WORD_WRAP cannot be combined.
+ * @see TEXT_SINGLE_LINE
+ */
+ public static final int TEXT_WORD_WRAP = 0x1000;
+
+ /**
+ * Breaks lines anywhere, even within words.
+ */
+ public static final int TEXT_WRAP_ANYWHERE = 0x2000;
+
+ /**
+ * Same as OS_TEXT_SHOW_MNEMONIC but no underlines.
+ * @see OS_TEXT_SHOW_MNEMONIC
+ */
+ public static final int TEXT_HIDE_MNEMONIC = 0x8000;
+
+ /**
+ * Behaves like a "hidden" text - not printed.
+ */
+ public static final int TEXT_DONT_PRINT = 0x4000;
+
+ /**
+ * Trailing whitespace not deleted automatically.
+ */
+ public static final int TEXT_INCLUDE_TRAILING_SPACES = 0x08000000;
+
+ /**
+ * Ensures that text lines are justified.
+ */
+ public static final int TEXT_JUSTIFICATIONFORCED = 0x10000;
+
+ // Alignment flags
+ /**
+ * Aligns with the left edge.
+ */
+ public static final int ALIGNMENT_LEFT = 0x0001;
+
+ /**
+ * Aligns with the right edge.
+ */
+ public static final int ALIGNMENT_RIGHT = 0x0002;
+
+ /**
+ * Centers horizontally in the available space.
+ */
+ public static final int ALIGNMENT_HCENTER = 0x0004;
+
+ /**
+ * Justifies the text in the available space.
+ */
+ public static final int ALIGNMENT_JUSTIFY = 0x0008;
+
+ /**
+ * Aligns with the top.
+ */
+ public static final int ALIGNMENT_TOP = 0x0020;
+
+ /**
+ * Aligns with the bottom.
+ */
+ public static final int ALIGNMENT_BOTTOM = 0x0040;
+
+ /**
+ * Centers vertically in the available space.
+ */
+ public static final int ALIGNMENT_VCENTER = 0x0080;
+
+ // package constants
+
+ /**
+ * Specifies no target
+ */
+ static final int TARGET_NONE = 0;
+
+ /**
+ * Specifies native target type QWidget.
+ */
+ static final int TARGET_WIDGET = 1;
+
+ /**
+ * Specifies native target type Image.
+ */
+ static final int TARGET_IMAGE = 2;
+
+ /**
+ * Specifies native target type Buffer.
+ */
+ static final int TARGET_NATIVE_COMMAND_BUFFER = 3;
+
+ /**
+ * Specifies Java command buffer target
+ */
+ static final int TARGET_WINDOWSURFACE = 4;
+ /**
+ * Specifies Java command buffer target, not valid in native target types
+ */
+ static final int TARGET_JAVA_COMMAND_BUFFER = 5;
+
+ /**
+ * Native peer handle
+ */
+ int handle = -1;
+
+
+ /**
+ * private members
+ */
+ private boolean disposed;
+ private RenderingTarget targetData = null;
+
+ /**
+ * Constructor
+ */
+ public GraphicsContext() {
+ Utils.validateUiThread();
+ handle = OS.graphicsContext_init();
+ targetData = new RenderingTarget();
+ disposed = false;
+ }
+
+ /**
+ * Gets the windowsurface of currently bound target.
+ * Windowsurface is the surface where external graphics APIs can render, e.g m2g and m3g.
+ * @return windowSurface if currently bound target has one, otherwise null
+ */
+ public WindowSurface getWindowSurface() {
+ checkState();
+
+ // buffers don't have a window surface
+
+ if ((targetData.type == TARGET_NATIVE_COMMAND_BUFFER) ||(targetData.type == TARGET_JAVA_COMMAND_BUFFER) ) {
+ return null;
+ }
+
+ // Get the current target that is bound
+ Object target = targetData.target;
+
+ // Only shells have window surface so figure out if target is shell,
+ // and if not get the shell of child widget
+ if (targetData.type == TARGET_WIDGET) {
+ if (!(target instanceof org.eclipse.swt.widgets.Shell)) {
+ target = ((org.eclipse.swt.widgets.Control)target).getShell();
+ }
+ }
+ SurfaceCache cache = SurfaceCache.getInstance();
+
+ // check surface cache for existing windowsurface for current target
+ WindowSurface surface = cache.getSurface(target);
+
+ // If not found in cache we need to create new one
+ // and store that to cache for future use
+ if (surface == null) {
+ surface = new WindowSurface(OS.graphicsContext_get_windowsurface(handle));
+ if (targetData.type == TARGET_WIDGET) {
+ // Add to cache and let it add dispose listener for automatic cleanup
+ cache.addSurface(surface, target, true);
+ } else {
+ // Image associated entry's are deleted when Image dispose is called
+ cache.addSurface(surface, target, false);
+ }
+ return surface;
+ } else {
+ return surface;
+ }
+ }
+
+ void bindTarget(java.lang.Object target, int type, int handle, int bufferFlushTargetHandle) {
+ Utils.validateUiThread();
+ // validate state
+ if(disposed) {
+ throw new IllegalStateException("GraphicsContext already disposed");
+ }
+ if (isActive()) {
+ throw new IllegalStateException("Already bound to target: " + targetData.target);
+ }
+
+ // Reset iTarget before setting new target
+ targetData.reset();
+
+ // call for actual bind, this may throw an exception
+ // especially when trying to bind a target which has been bound already
+ // this is skipped if target is java command buffer
+ if (type != TARGET_JAVA_COMMAND_BUFFER) {
+ doBind(handle, type, target, bufferFlushTargetHandle);
+ } else {
+ if(((JavaCommandBuffer)target).isBound()) {
+ throw new IllegalStateException("Target already bound by other gc instance");
+ }
+ targetData.commandBuffer = (JavaCommandBuffer)target;
+ targetData.isJavaCommandBuffer = true;
+ }
+
+ // store target
+ targetData.handle = handle;
+ targetData.type = type;
+ targetData.target = target;
+
+ // If target is Image, inform that it is being bound.
+ // this is needed in case image is disposed before
+ // releaseTarget() is called
+ if(type == TARGET_IMAGE) {
+ ((org.eclipse.swt.internal.qt.graphics.Image)target).notifyBind(this);
+ }
+ }
+
+ /**
+ * Binds given SWT Control as the rendering target of this GraphicsContext.
+ *
+ * @param target SWT Control
+ *
+ * @throws java.lang.IllegalStateException if this GraphicsContext already has a rendering target
+ * @throws java.lang.IllegalStateException if given target is already bound by some other GC instance
+ * @throws java.lang.IllegalStateException if GraphicsContext has already been disposed
+ * @throws java.lang.NullPointerException if given target is null
+ * @throws java.lang.IllegalArgumentException if given target cannot be bound
+ * @throws java.lang.IllegalArgumentException if given target is already disposed
+ */
+ public void bindTarget(org.eclipse.swt.widgets.Control target) {
+ if(target == null) {
+ throw new NullPointerException("target is null");
+ }
+ if(target.isDisposed())
+ throw new IllegalArgumentException("Target already disposed");
+ bindTarget(target, TARGET_WIDGET, handle(target), 0);
+ }
+
+ /**
+ * Binds given SWT Display as the rendering target of this GraphicsContext.
+ *
+ * @param target SWT Display
+ *
+ * @throws java.lang.IllegalStateException if this GraphicsContext already has a rendering target
+ * @throws java.lang.IllegalStateException if given target is already bound by some other GC instance
+ * @throws java.lang.IllegalStateException if GraphicsContext has already been disposed
+ * @throws java.lang.NullPointerException if given target is null
+ * @throws java.lang.IllegalArgumentException if given target cannot be bound
+ * @throws java.lang.IllegalArgumentException if given target is already disposed
+ */
+ public void bindTarget(org.eclipse.swt.widgets.Display target) {
+ if(target == null) {
+ throw new NullPointerException("target is null");
+ }
+ if(target.isDisposed())
+ throw new IllegalArgumentException("Target already disposed");
+ int handle = org.eclipse.swt.internal.qt.OS.QApplication_desktop();
+ bindTarget(target, TARGET_WIDGET, handle, 0);
+ }
+
+ /**
+ * Binds given org.eclipse.swt.internal.qt.graphics.Image as the rendering target of this GraphicsContext.
+ *
+ * @param target The image
+ *
+ * @throws java.lang.IllegalStateException if this GraphicsContext already has a rendering target
+ * @throws java.lang.IllegalStateException if given target is already bound by some other GC instance
+ * @throws java.lang.IllegalStateException if GraphicsContext has already been disposed
+ * @throws java.lang.NullPointerException if given target is null
+ * @throws java.lang.IllegalArgumentException if given target cannot be bound
+ * @throws java.lang.IllegalArgumentException if given target is already disposed
+ */
+ public void bindTarget(org.eclipse.swt.internal.qt.graphics.Image target) {
+ if(target == null) {
+ throw new NullPointerException("target is null");
+ }
+ if(target.isDisposed())
+ throw new IllegalArgumentException("Target already disposed");
+ bindTarget(target, TARGET_IMAGE, target.handle, 0);
+ }
+
+ /**
+ * Binds given org.eclipse.swt.internal.qt.graphics.Buffer as the rendering target of this GraphicsContext.
+ *
+ * @param target The buffer
+ * @param flushTargetHandle The actual target where the buffer will be flushed to
+ *
+ * @throws java.lang.IllegalStateException if this GraphicsContext already has a rendering target
+ * @throws java.lang.IllegalStateException if given target is already bound by some other GC instance
+ * @throws java.lang.IllegalStateException if CraphicsContext has already been disposed
+ * @throws java.lang.NullPointerException if given target is null
+ * @throws java.lang.NullPointerException if given flushTarget is null
+ * @throws java.lang.IllegalArgumentException if given target cannot be bound
+ * @throws java.lang.IllegalArgumentException if given target is already disposed
+ */
+ public void bindTarget(org.eclipse.swt.internal.qt.graphics.NativeCommandBuffer target, org.eclipse.swt.widgets.Control flushTarget) {
+ if(target == null) {
+ throw new NullPointerException("target is null");
+ }
+ if(flushTarget == null) {
+ throw new NullPointerException("flushTarget is null");
+ }
+ if(target.isDisposed())
+ throw new IllegalArgumentException("Target already disposed");
+ if(flushTarget.isDisposed())
+ throw new IllegalArgumentException("Buffer flush target already disposed");
+ bindTarget(target, TARGET_NATIVE_COMMAND_BUFFER, target.handle, handle(flushTarget));
+ }
+
+
+ /**
+ * Binds given org.eclipse.swt.internal.qt.graphics.CommandBuffer as the rendering target of this GraphicsContext.
+ * When JavaCommandBuffer is set as rendering target only one way methods, i.e. draw and setters are supported.
+ * See JavaCommanduffer implementation for details of what operations are supported.
+ *
+ * @param target The buffer where commands are recorded
+ * @throws java.lang.IllegalStateException if this GraphicsContext already has a rendering target
+ * @throws java.lang.IllegalStateException if given target is already bound by some other GC instance
+ * @throws java.lang.IllegalStateException if CraphicsContext has already been disposed
+ * @throws java.lang.NullPointerException if given target is null
+ */
+ public void bindTarget(org.eclipse.swt.internal.qt.graphics.JavaCommandBuffer target) {
+ if(target == null)
+ throw new NullPointerException("target is null");
+ bindTarget(target, TARGET_JAVA_COMMAND_BUFFER, 0, 0);
+ }
+
+
+ /**
+ * Don't use. This is here only for testing purposes.
+ * @deprecated Buffer flush target must be given be given when binding to a buffer.
+ * @see bindTarget(org.eclipse.swt.internal.qt.graphics.Buffer target, org.eclipse.swt.widgets.Control flushTarget)
+ */
+ public void bindTarget(org.eclipse.swt.internal.qt.graphics.NativeCommandBuffer target) {
+ if(target == null) {
+ throw new NullPointerException("Target is null");
+ }
+ if(target.isDisposed()) {
+ throw new IllegalArgumentException("target already disposed");
+ }
+ bindTarget(target, TARGET_NATIVE_COMMAND_BUFFER, target.handle, 0);
+ }
+
+ /**
+ * Binds given org.eclipse.swt.internal.qt.graphics.WindowSurface as the rendering target of this GraphicsContext.
+ *
+ * @param target The WindowSurface instance to be bound
+ * @throws java.lang.IllegalStateException if this GraphicsContext already has a rendering target
+ * @throws java.lang.IllegalStateException if given target is already bound by some other GC instance
+ * @throws java.lang.IllegalStateException if CraphicsContext has already been disposed
+ * @throws java.lang.NullPointerException if given target is null
+ * @throws java.lang.IllegalArgumentException if given target is already disposed
+ */
+ public void bindTarget(org.eclipse.swt.internal.qt.graphics.WindowSurface target) {
+ if(target == null) {
+ throw new NullPointerException("target is null");
+ }
+ if(target.isDisposed()) {
+ throw new IllegalArgumentException("target already disposed");
+ }
+ bindTarget(target, TARGET_WINDOWSURFACE, target.handle, 0);
+ }
+
+ /**
+ * Get target to which current GraphicsContext is bound to
+ *
+ * @return Object to which GraphicsContext is bound to or null if there is no target
+ */
+ public Object getBoundTarget() {
+ checkState();
+ return targetData.target;
+ }
+
+ /**
+ * Flushes all pending draw operations and releases current rending target.
+ * If no target is bound, request is silently ingored.
+ */
+ public void releaseTarget() {
+ Utils.validateUiThread();
+ if (disposed) {
+ throw new IllegalStateException("GraphicsContext already disposed");
+ }
+
+ if (targetData.target != null) {
+ // In case of java command buffer no native calls needed
+ if (targetData.type == TARGET_JAVA_COMMAND_BUFFER) {
+ targetData.commandBuffer.release();
+ targetData.reset();
+ return;
+ }
+ // call native release
+ OS.graphicsContext_releaseTarget(handle);
+
+ // if target is Image notify about release
+ if(targetData.type == TARGET_IMAGE) {
+ ((org.eclipse.swt.internal.qt.graphics.Image)targetData.target).notifyRelease();
+ }
+ // reset target data
+ targetData.reset();
+ } else {
+ //ignore, i.e. no need to throw an exception
+ }
+ }
+
+ /**
+ * Checks if target is already bound by some other gc instance and does
+ * native bind operation.
+ *
+ * @param gc The GraphicsContext doing the binding
+ * @throws IllegalStateException if target is found in the list before adding it,
+ * i.e. it is already being painted by some other gc.
+ */
+ private void doBind(int targetHandle, int targetType, java.lang.Object target, int bufferFlushTargetHandle) {
+ // call native bind. In case this fails the native peer throws an exception
+ // and resets state automatically, i.e. there no need to rewind from here
+ OS.graphicsContext_bindTarget(handle, targetHandle, targetType, bufferFlushTargetHandle);
+ }
+
+ /**
+ * Renders all draw commands stored in given buffer to currently bound target.
+ *
+ * @param buffer The buffer to be processed
+ * @throws NullPointerException If buffer is null
+ * @throws IllegalArgumentException If buffer has been already disposed
+ */
+ public void render(NativeCommandBuffer buffer) {
+ checkState();
+ if(buffer == null) {
+ throw new NullPointerException("buffer is null");
+ }
+ if(buffer.isDisposed()) {
+ throw new IllegalArgumentException("buffer already disposed");
+ }
+ OS.graphicsContext_render(handle, buffer.handle);
+ }
+
+ /**
+ * Renders all draw commands stored in given CommandBuffer to currently bound target.
+ * Note that JavaCommandBuffer can be rendered only once as some of the large data objects placed in
+ * the buffer are freed right after they have been processed.
+ *
+ * @param buffer The CommandBuffer to be processed
+ * @throws NullPointerException If CommandBuffer is null
+ */
+ public void render(JavaCommandBuffer buffer) {
+ checkState();
+ if(buffer == null) {
+ throw new NullPointerException("buffer is null");
+ }
+ // if buffer does not contain data do nothing
+ if(buffer.containsData()) {
+ processBuffer(buffer);
+ }
+ }
+
+ /**
+ * Copies rectangular area from currently bound target to given image target.
+ * The copy rectangle top left corned is defined by x and y and bottom right corner
+ * by image width and height.
+ *
+ * @param target The image to copy into
+ * @param x The x coordinate of top left corner copy area
+ * @param y The y coordinate of top left corner copy area
+ * @throws NullPointerException if Image target is null
+ * @throws IllegalStateException if no target is bound
+ */
+ public void copyArea(Image target, int x, int y) {
+ checkState();
+ if (target == null) {
+ throw new NullPointerException("Target image is null");
+ }
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.copyArea(target, x, y);
+ } else {
+ OS.graphicsContext_copyArea(handle, target.handle, x, y);
+ }
+ }
+
+ /**
+ * Copies rectangular area within currently bound target from source
+ * location to destination location.
+ *
+ * @param srcX The top left x coordinate of source rectangle
+ * @param srcY The top left y coordinate of source rectangle
+ * @param width The width of source rectangle
+ * @param height The height of source rectangle
+ * @param destX The top left x coordinate for the copy
+ * @param destY The top left y coordinate for the copy
+ * @throws IllegalStateException if no target is bound
+ */
+ public void copyArea(int srcX, int srcY, int width, int height, int destX, int destY) {
+ copyArea(srcX, srcY, width, height, destX, destY, false);
+ }
+
+ /**
+ * Copies rectangular area within currently bound target from source
+ * location to destination location.
+ *
+ * @param srcX The top left x coordinate of source rectangle
+ * @param srcY The top left y coordinate of source rectangle
+ * @param width The width of source rectangle
+ * @param height The height of source rectangle
+ * @param destX The top left x coordinate for the copy
+ * @param destY The top left y coordinate for the copy
+ * @param paint If to generate paint events for the new and obscured areas
+ * @throws IllegalStateException if no target is bound
+ */
+ public void copyArea(int srcX, int srcY, int width, int height, int destX, int destY, boolean paint) {
+ checkState();
+
+ if(width <= 0 || height <= 0) {
+ return;
+ }
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.copyArea(srcX, srcY, width, height, destX, destY, paint);
+ } else {
+ OS.graphicsContext_copyArea(handle, srcX, srcY, width, height, destX, destY, paint);
+ }
+ }
+
+ /**
+ * Draws outline of elliptical arc within specified rectangle using foreground color.
+ * Arc is drawn counterclockwise.
+ *
+ * @param x The x coordinate of top left corner of arc rectangle
+ * @param y The y coordinate of top left corner of arc rectangle
+ * @param width The width of arc rectangle
+ * @param height The height of arc rectangle
+ * @param startAngle The starting angle for arc
+ * @param arcAngle The span angle for arc
+ * @throws IllegalStateException if no target is bound
+ */
+ public void drawArc(int x, int y, int width, int height, int startAngle, int arcAngle) {
+ checkState();
+
+ if(width <= 0 || height <= 0) {
+ return;
+ }
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.drawArc(x, y, width, height, startAngle, arcAngle);
+ } else {
+ OS.graphicsContext_drawArc(handle, x, y, width, height, startAngle, arcAngle);
+ }
+ }
+
+ /**
+ * Draws an ellipse specified by rectangle using foreground color.
+ *
+ * @param x The x coordinate of top left corner of ellipse rectangle
+ * @param y The y coordinate of top left corner of ellipse rectangle
+ * @param width The width of ellipse rectangle
+ * @param height The height of ellipse rectangle
+ * @throws IllegalStateException if no target is bound
+ */
+ public void drawEllipse(int x, int y, int width, int height) {
+ checkState();
+
+ if(width <= 0 || height <= 0) {
+ return;
+ }
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.drawEllipse(x, y, width, height);
+ } else {
+ OS.graphicsContext_drawEllipse(handle, x, y, width, height);
+ }
+ }
+
+ public void drawFocus(int x, int y, int width, int height) {
+ checkState();
+
+ if(width <= 0 || height <= 0) {
+ return;
+ }
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.drawFocus(x, y, width, height);
+ } else {
+ OS.graphicsContext_drawFocus(handle, x, y, width, height);
+ }
+ }
+
+ /**
+ * Draws given image to specified location.
+ *
+ * @param img The image to draw
+ * @param x The x coordinate of top left corner where to draw image
+ * @param y The y coordinate of top left corner where to draw image
+ * @throws NullPointerException if Image is null
+ * @throws IllegalStateException if no target is bound
+ */
+ public void drawImage(Image img, int x, int y) {
+ checkState();
+ if (img == null) {
+ throw new NullPointerException("Image is null");
+ }
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.drawImage(img, x, y);
+ } else {
+ OS.graphicsContext_drawImage(handle, img.handle, x, y);
+ }
+ }
+
+ /**
+ * Draws given image to specified location.
+ *
+ * @param img The image to draw
+ * @param tx The top-left x coordinate in image that is to be drawn onto
+ * @param ty The top-left y coordinate in image that is to be drawn onto
+ * @param tw The width of the image that is to be drawn onto.
+ * @param th The heigth of the image that is to be drawn onto.
+ * @param sx The top-left x coordinate in image that is to be drawn
+ * @param sy The top-left y coordinate in image that is to be drawn
+ * @param sw The width of the image that is to be drawn.
+ * @param sh The heigth of the image that is to be drawn.
+ * @throws NullPointerException if Image is null
+ * @throws IllegalStateException if no target is bound
+ */
+ public void drawImage(Image img,
+ int tx, int ty, int tw, int th,
+ int sx, int sy, int sw, int sh) {
+ checkState();
+ if (img == null) {
+ throw new NullPointerException("Image is null");
+ }
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.drawImage(img, tx, ty, tw, th, sx, sy, sw, sh, Image.TRANS_NONE);
+ } else {
+ OS.graphicsContext_drawImage(handle, img.handle, tx, ty, tw, th, sx, sy, sw, sh, Image.TRANS_NONE);
+ }
+ }
+
+ /**
+ * Draws given image to specified location.
+ *
+ * @param img The image to draw
+ * @param tx The top-left x coordinate in image that is to be drawn onto
+ * @param ty The top-left y coordinate in image that is to be drawn onto
+ * @param tw The width of the image that is to be drawn onto.
+ * @param th The heigth of the image that is to be drawn onto.
+ * @param sx The top-left x coordinate in image that is to be drawn
+ * @param sy The top-left y coordinate in image that is to be drawn
+ * @param sw The width of the image that is to be drawn.
+ * @param sh The heigth of the image that is to be drawn.
+ * @param manipulation transformation to be applied to region to be drawn, one of Image.TRANS_* definitions
+ * @throws NullPointerException if Image is null
+ * @throws IllegalArgumentException if manipulation is invalid
+ * @throws IllegalStateException if no target is bound
+ */
+ public void drawImage(Image img,
+ int tx, int ty, int tw, int th,
+ int sx, int sy, int sw, int sh, int manipulation) {
+ checkState();
+ if (img == null) {
+ throw new NullPointerException("Image is null");
+ }
+ if (!isManipulationValid(manipulation)) {
+ throw new IllegalArgumentException("Invalid manipulation");
+ }
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.drawImage(img, tx, ty, tw, th, sx, sy, sw, sh, manipulation);
+ } else {
+ OS.graphicsContext_drawImage(handle, img.handle, tx, ty, tw, th, sx, sy, sw, sh, manipulation);
+ }
+ }
+
+ /**
+ * Draws a line between defined points using foreground color.
+ *
+ * @param x1 The x coordinate of staring point
+ * @param y1 The y coordinate of staring point
+ * @param x2 The x coordinate of ending point
+ * @param y2 The y coordinate of ending point
+ * @throws IllegalStateException if no target is bound
+ */
+ public void drawLine(int x1, int y1, int x2, int y2) {
+ checkState();
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.drawLine(x1, y1, x2, y2);
+ } else {
+ OS.graphicsContext_drawLine(handle, x1, y1, x2, y2);
+ }
+ }
+
+ /**
+ * Draws a point to specified location using foreground color.
+ *
+ * @param x The x coordinate to draw the point
+ * @param y The y coordinate to draw the point
+ * @throws IllegalStateException if no target is bound
+ */
+ public void drawPoint(int x, int y) {
+ checkState();
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.drawPoint(x, y);
+ } else {
+ OS.graphicsContext_drawPoint(handle, x, y);
+ }
+ }
+
+ /**
+ * Draws a closed polygon which is defined integer array of coorinates, using foreground color.
+ * Lines are drawn between each consecutive x,y pairs and between first and last point.
+ *
+ * @param pointArray An array alternating x and y values which are the verices of the polygon
+ * @throws NullPointerException if <code>pointArray</code> is null
+ * @throws IllegalStateException if no target is bound
+ */
+ public void drawPolygon(int[] pointArray) {
+ checkState();
+ if (pointArray == null) {
+ throw new NullPointerException("pointaArray is null");
+ }
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.drawPolygon(pointArray);
+ } else {
+ OS.graphicsContext_drawPolygon(handle, pointArray);
+ }
+ }
+
+ /**
+ * Draws polyline which is defined integer array of coorinates, using foreground color.
+ * Lines are drawn between each consecutive x,y pairs, but not between first and last coordinate.
+ *
+ * @param pointArray An array alternating x and y values which are the corners of the polyline
+ * @throws NullPointerException if <code>pointArray</code> is null
+ * @throws IllegalStateException if no target is bound
+ */
+ public void drawPolyline(int[] pointArray) {
+ checkState();
+ if (pointArray == null) {
+ throw new NullPointerException("pointaArray is null");
+ }
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.drawPolyline(pointArray);
+ } else {
+ OS.graphicsContext_drawPolyline(handle, pointArray);
+ }
+ }
+
+ /**
+ * Draws outline rectangle specified by the arguments using foreground color.
+ *
+ * @param x The x coordinate of top left corner of rectangle
+ * @param y The y coordinate of top left corner of rectangle
+ * @param width The width of rectangle
+ * @param height The height of rectangle
+ * @throws IllegalStateException if no target is bound
+ */
+ public void drawRect(int x, int y, int width, int height) {
+ checkState();
+
+ if(width <= 0 || height <= 0) {
+ return;
+ }
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.drawRect(x, y, width, height);
+ } else {
+ OS.graphicsContext_drawRect(handle, x, y, width, height);
+ }
+ }
+
+ /**
+ * Draws a series of RGB+transparency values to specified region
+ *
+ * Scanlength can be negative which results in reading <code>rgbData</code> array in reverse direction
+ *
+ * @param rgbData an array or ARGB values in format #AARRGGBB
+ * @param offset the array index of the first ARGB value
+ * @param scanlenght the relative arra offset between consecutive rows in the <code>rgbData</code> array
+ * @param x the horizontal location of the region to be rendered
+ * @param y the vertical location of the region to be rendered
+ * @param width the width of the region to be rendered
+ * @param height the height of the region to be rendered
+ * @param processAlpha <code>true</code> if <code>rgbData</code> has an alpha channel, <code>false</code> if all pixels are fully opaque
+ * @param manipulation transformation to be applied, one of Image.TRANS_* definitions
+ * @throws NullPointerException if <code>rgbData</code> is null
+ * @throws IllegalArgumentException if manipulation is invalid
+ * @throws ArrayIndexOutOfBoundsException if operation will attempt to access elements outside the range of <code>rgbData</code> array
+ * @throws IllegalStateException if no target is bound
+ */
+ public void drawRGB(int[] rgbData, int offset, int scanlength, int x, int y, int width, int height, boolean processAlpha, int manipulation) {
+ checkState();
+ if(rgbData == null) {
+ throw new NullPointerException("rgbData is null");
+ }
+ // check most obvious cases where we end up outside array bounds and abort
+ // native peer will throw also exception if operation goes outside of array bounds
+ if((offset < 0) || (rgbData.length < offset + width) ) {
+ throw new ArrayIndexOutOfBoundsException();
+ }
+ if (!isManipulationValid(manipulation)) {
+ throw new IllegalArgumentException("Invalid manipulation");
+ }
+ if(scanlength == 0) {
+ return;
+ }
+ if(width <= 0 || height <= 0) {
+ return;
+ }
+ if(Math.abs(scanlength) < width) {
+ return;
+ }
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.drawRGB(rgbData, offset, scanlength, x, y, width, height, processAlpha, manipulation);
+ } else {
+ OS.graphicsContext_drawRGB(handle, rgbData, offset, scanlength, x, y, width, height, processAlpha, manipulation);
+ }
+ }
+
+ /**
+ * Draws a series of RGB+transparency values to specified region
+ *
+ * Scanlength can be negative which results in reading <code>rgbData</code> array in reverse direction
+ *
+ * @param rgbData an array or ARGB values in format #AARRGGBB
+ * @param offset the array index of the first ARGB value
+ * @param scanlenght the relative arra offset between consecutive rows in the <code>rgbData</code> array
+ * @param x the horizontal location of the region to be rendered
+ * @param y the vertical location of the region to be rendered
+ * @param width the width of the region to be rendered
+ * @param height the height of the region to be rendered
+ * @param processAlpha <code>true</code> if <code>rgbData</code> has an alpha channel, <code>false</code> if all pixels are fully opaque
+ * @throws NullPointerException if <code>rgbData</code> is null
+ * @throws ArrayIndexOutOfBoundsException if operation will attempt to access elements outside the range of <code>rgbData</code> array
+ * @throws IllegalStateException if no target is bound
+ */
+ public void drawRGB(int[] rgbData, int offset, int scanlength, int x, int y, int width, int height, boolean processAlpha) {
+ checkState();
+ drawRGB(rgbData, offset, scanlength, x, y, width, height, processAlpha, Image.TRANS_NONE);
+ }
+
+ /**
+ * Draws a series of RGB+transparency values to specified region
+ *
+ * Scanlength can be negative which results in reading <code>rgbData</code> array in reverse direction
+ *
+ * @param rgbData an array or RGB values in format 1 bit per pixel
+ * @param transparencyMask an array of mask values
+ * @param offset the array index of the first ARGB value
+ * @param scanlenght the relative arra offset between consecutive rows in the <code>rgbData</code> array
+ * @param x the horizontal location of the region to be rendered
+ * @param y the vertical location of the region to be rendered
+ * @param width the width of the region to be rendered
+ * @param height the height of the region to be rendered
+ * @param manipulation transformation to be applied, one of Image.TRANS_* definitions
+ * @throws NullPointerException if <code>rgbData</code> is null
+ * @throws IllegalArgumentException if manipulation is invalid
+ * @throws ArrayIndexOutOfBoundsException if operation will attempt to access elemens outside the range of <code>rgbData</code> array
+ * @throws IllegalStateException if no target is bound
+ */
+ public void drawRGB(byte[] rgbData, byte[] transparencyMask,int offset, int scanlength, int x, int y, int width, int height, int manipulation, int format) {
+ checkState();
+ if(rgbData == null) {
+ throw new NullPointerException("rgbData is null");
+ }
+ // check most obvious cases where we end up outside array bounds and abort
+ // native peer will throw also exception if operation goes outside of array bounds
+ if((offset < 0) || (rgbData.length < offset + width) ) {
+ throw new ArrayIndexOutOfBoundsException();
+ }
+ if (!isManipulationValid(manipulation)) {
+ throw new IllegalArgumentException("Invalid manipulation");
+ }
+
+ if(scanlength == 0) {
+ return;
+ }
+ if(width <= 0 || height <= 0) {
+ return;
+ }
+ if(Math.abs(scanlength) < width) {
+ return;
+ }
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.drawRGB(rgbData, transparencyMask, offset, scanlength, x, y, width, height, manipulation, format);
+ } else {
+ OS.graphicsContext_drawRGB(handle, rgbData, transparencyMask, offset, scanlength, x, y, width, height, manipulation, format);
+ }
+ }
+
+
+ /**
+ * Draws a series of RGB+transparency values to specified region
+ *
+ * Scanlength can be negative which results in reading <code>rgbData</code> array in reverse direction
+ *
+ * @param rgbData an array or ARGB values in format #AARRGGBB
+ * @param offset the array index of the first ARGB value
+ * @param scanlenght the relative arra offset between consecutive rows in the <code>rgbData</code> array
+ * @param x the horizontal location of the region to be rendered
+ * @param y the vertical location of the region to be rendered
+ * @param width the width of the region to be rendered
+ * @param height the height of the region to be rendered
+ * @param processAlpha <code>true</code> if <code>rgbData</code> has an alpha channel, <code>false</code> if all pixels are fully opaque
+ * @param manipulation transformation to be applied, one of Image.TRANS_* definitions
+ * @throws NullPointerException if <code>rgbData</code> is null
+ * @throws IllegalArgumentException if manipulation is invalid
+ * @throws ArrayIndexOutOfBoundsException if operation will attempt to access elemens outside the range of <code>rgbData</code> array
+ * @throws IllegalStateException if no target is bound
+ */
+ public void drawRGB(short[] rgbData, int offset, int scanlength, int x, int y, int width, int height, boolean processAlpha, int manipulation, int format) {
+ checkState();
+ if(rgbData == null) {
+ throw new NullPointerException("rgbData is null");
+ }
+ // check most obvious cases where we end up outside array bounds and abort
+ // native peer will throw also exception if operation goes outside of array bounds
+ if((offset < 0) || (rgbData.length < offset + width) ) {
+ throw new ArrayIndexOutOfBoundsException();
+ }
+ if (!isManipulationValid(manipulation)) {
+ throw new IllegalArgumentException("Invalid manipulation");
+ }
+ if(scanlength == 0) {
+ return;
+ }
+ if(width <= 0 || height <= 0) {
+ return;
+ }
+ if(Math.abs(scanlength) < width) {
+ return;
+ }
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.drawRGB(rgbData, offset, scanlength, x, y, width, height, processAlpha, manipulation, format);
+ } else {
+ OS.graphicsContext_drawRGB(handle, rgbData, offset, scanlength, x, y, width, height, processAlpha, manipulation, format);
+ }
+ }
+ /**
+ * Draws outline round-cornered rectangle specified by the arguments using foreground color.
+ *
+ * @param x The x coordinate of top left corner of rectangle
+ * @param y The y coordinate of top left corner of rectangle
+ * @param width The width of rectangle
+ * @param height The height of rectangle
+ * @param arcWidth The width of the rectangle corner arc
+ * @param arcHeight The heiht of the rectangle corner arc
+ * @throws IllegalStateException if no target is bound
+ */
+ public void drawRoundRect(int x, int y, int width, int height, int arcWidth, int arcHeight) {
+ checkState();
+ if(width <= 0 || height <= 0) {
+ return;
+ }
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.drawRoundRect(x, y, width, height, arcWidth, arcHeight);
+ } else {
+ OS.graphicsContext_drawRoundRect(handle, x, y, width, height, arcWidth, arcHeight);
+ }
+ }
+
+ /**
+ * Draws the given string to specified location using the current font and foreground color.
+ * Note: no tab expansion or carriage return processing will be performed.
+ *
+ * @param string The string to draw
+ * @param x The x coordinate of top left corner of rectangular are where the string is drawn
+ * @param y The y coordinate of top left corner of rectangular are where the string is drawn
+ * @param sTransparent If true the background will be transparent, otherwise it will be opaque
+ * @throws IllegalStateException if no target is bound
+ */
+ // TODO version for drawing bounding box (eSWT)
+ public void drawString(String string, int x, int y, boolean isTransparent) {
+ checkState();
+ drawString(
+ string,
+ x,
+ y,
+ 0,
+ 0,
+ (GraphicsContext.ALIGNMENT_LEFT | GraphicsContext.ALIGNMENT_TOP),
+ GraphicsContext.TEXT_SINGLE_LINE,
+ isTransparent);
+ }
+
+ /**
+ * Draws the given string to specified location using the current font and foreground color.
+ * <code>alignments</code> and <code>flags</code> can be combined by
+ * using the bit-wise or operation.
+ *
+ * @param string The string to draw
+ * @param x The x coordinate of top left corner of rectangular are where the string is drawn
+ * @param y The y coordinate of top left corner of rectangular are where the string is drawn
+ * @param width The width of rectangular are where the string is drawn.
+ * If 0 then the width is calculated based on the given <code>string</code>, <code>alignments</code> and <code>flags</code>.
+ * @param height The height of rectangular are where the string is drawn.
+ * If 0 then the height is calculated based on the given <code>text</code>, <code>alignments</code> and <code>flags</code>.
+ * @param alingments Alingments:
+ * <ul>
+ * <li>ALIGNMENT_LEFT - Aligns with the left edge</li>
+ * <li>ALIGNMENT_RIGHT - Aligns with the right edge</li>
+ * <li>ALIGNMENT_HCENTER - Centers horizontally in the available space</li>
+ * <li>ALIGNMENT_TOP - Aligns with the top</li>
+ * <li>ALIGNMENT_BOTTOM - Aligns with the bottom</li>
+ * <li>ALIGNMENT_VCENTER - Centers vertically in the available space</li>
+ * </ul>
+ * @param flags Flags:
+ * <ul>
+ * <li>TEXT_SINGLE_LINE - One line. Whitespaces are threated as spaces</li>
+ * <li>TEXT_DONT_CLIP - Prints outside of the given bounds if needed</li>
+ * <li>TEXT_EXPAND_TABS - Expand tabs</li>
+ * <li>TEXT_SHOW_MNEMONIC - Underline the mnemonic character</li>
+ * <li>TEXT_WORD_WRAP - Breaks lines at appropriate points</li>
+ * <li>TEXT_WRAP_ANYWHERE - Breaks lines anywhere, even within words</li>
+ * <li>TEXT_DONT_PRINT - Behaves like a "hidden" text, not printed</li>
+ * <li>TEXT_INCLUDE_TAILING_SPACES - Trailing whitespace not deleted automatically</li>
+ * <li>TEXT_JUSTIFICATIONFORCED - Ensures that text lines are justified</li>
+ * </ul>
+ */
+ public void drawString(
+ String string, int x, int y, int width, int height, int alignments, int flags, boolean isTransparent) {
+ checkState();
+
+ if (string == null) {
+ throw new NullPointerException("string is null");
+ }
+ if( (flags & TEXT_DONT_PRINT)== TEXT_DONT_PRINT)
+ { // nothing should be drawn
+ return;
+ }
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.drawString(string, x, y, width, height, alignments, flags, isTransparent);
+ } else {
+ OS.graphicsContext_drawString(handle, string, x, y, width, height, alignments, flags, isTransparent);
+ }
+ }
+
+ /**
+ * Fill interior of circular or elliptical arc within specified rectangular area, using background color.
+ *
+ * @param x The x coordinate of top left corner of arc rectangle
+ * @param y The y coordinate of top left corner of arc rectangle
+ * @param width The width of arc rectangle
+ * @param height The height of arc rectangle
+ * @param startAngle The starting angle for arc
+ * @param arcAngle The span angle for arc
+ * @throws IllegalStateException if no target is bound
+ */
+ public void fillArc(int x, int y, int width, int height, int startAngle, int arcAngle) {
+ checkState();
+ if(width <= 0 || height <= 0) {
+ return;
+ }
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.fillArc(x, y, width, height, startAngle, arcAngle);
+ } else {
+ OS.graphicsContext_fillArc(handle, x, y, width, height, startAngle, arcAngle);
+ }
+ }
+
+ /**
+ * Fills interior of an ellipse/oval within specified rectangular area, using background color.
+ *
+ * @param x The x coordinate of top left corner of ellipse rectangle
+ * @param y The y coordinate of top left corner of ellipse rectangle
+ * @param width The width of ellipse rectangle
+ * @param height The height of ellipse rectangle
+ * @throws IllegalStateException if no target is bound
+ */
+ public void fillEllipse(int x, int y, int width, int height) {
+ checkState();
+ if(width <= 0 || height <= 0) {
+ return;
+ }
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.fillEllipse(x, y, width, height);
+ } else {
+ OS.graphicsContext_fillEllipse(handle, x, y, width, height);
+ }
+ }
+
+ /**
+ * Fills interior of specified rectangle with a gradient sweeping from left to right or top to bottom
+ * from foregroundcolor to backgroundcolor or from backgroundcolor to foregroundcolor depending on <code>swapColors</code>.
+ *
+ * @param x The x coordinate of top left corner of rectangle
+ * @param y The y coordinate of top left corner of rectangle
+ * @param width The width of rectangle
+ * @param height The height of rectangle
+ * @param vertical if true sweeps from top to bottom, else sweeps from left to right
+ * @param swapColors if true sweep is performed from background color to foreground color, else from foreground color to background color
+ * @throws IllegalStateException if no target is bound
+ */
+ public void fillGradientRect(int x, int y, int width, int height, boolean vertical, boolean swapColors) {
+ checkState();
+ if(width <= 0 || height <= 0) {
+ return;
+ }
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.fillGradientRect(x, y, width, height, vertical, swapColors);
+ } else {
+ OS.graphicsContext_fillGradientRect(handle, x, y, width, height, vertical, swapColors);
+ }
+ }
+
+ /**
+ * Fills interior of closed polygon which is specified by array of integer coordinates,
+ * using background color. Lines are drawn between each consecutive x,y pairs and between first and last point.
+ *
+ * @param pointArray An array alternating x and y values which are the verices of the polygon
+ * @throws NullPointerException if <code>pointArray</code> is null
+ * @throws IllegalStateException if no target is bound
+ */
+ public void fillPolygon(int[] pointArray) {
+ checkState();
+ if (pointArray == null) {
+ throw new NullPointerException("pointaArray is null");
+ }
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.fillPolygon(pointArray);
+ } else {
+ OS.graphicsContext_fillPolygon(handle, pointArray);
+ }
+ }
+
+ /**
+ * Fills interior of the specified rectangle, using background color.
+ *
+ * @param x The x coordinate of top left corner of rectangle
+ * @param y The y coordinate of top left corner of rectangle
+ * @param width The width of rectangle
+ * @param height The height of rectangle
+ * @throws IllegalStateException if no target is bound
+ */
+ public void fillRect(int x, int y, int width, int height) {
+ checkState();
+ if(width <= 0 || height <= 0) {
+ return;
+ }
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.fillRect(x, y, width, height);
+ } else {
+ OS.graphicsContext_fillRect(handle, x, y, width, height);
+ }
+ }
+
+ /**
+ * Fills interior of round-cornered rectangle, using background color.
+ *
+ * @param x The x coordinate of top left corner of rectangle
+ * @param y The y coordinate of top left corner of rectangle
+ * @param width The width of rectangle
+ * @param height The height of rectangle
+ * @param arcWidth The width of the rectangle corner arc
+ * @param arcHeight The heiht of the rectangle corner arc
+ * @throws IllegalStateException if no target is bound
+ */
+ public void fillRoundRect(int x, int y, int width, int height, int arcWidth, int arcHeight) {
+ checkState();
+
+ if(width <= 0 || height <= 0) {
+ return;
+ }
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.fillRoundRectangle(x, y, width, height, arcWidth, arcHeight);
+ } else {
+ OS.graphicsContext_fillRoundRect(handle, x, y, width, height, arcWidth, arcHeight);
+ }
+ }
+
+ /**
+ * Get the advance width of the specified character in the font which is
+ * currently selected into the receiver.
+ * @param ch The character to be measured
+ * @return The distance in the x direction to move past the character before painting the next
+ */
+ public int getAdvancedCharacterWidth(char ch) {
+ checkState();
+ if(targetData.isJavaCommandBuffer) {
+ return targetData.commandBuffer.getAdvancedCharacterWidth(ch, true);
+ } else {
+ return OS.graphicsContext_getCharacterWidth(handle, ch, true);
+ }
+ }
+
+ /**
+ * Get the advance width of the specified character in the font which is
+ * currently selected into the receiver.
+ * The width is defined as the space taken up by the actual character,
+ * not including the leading and tailing whitespace or overhang.
+ *
+ * @param ch The character to be measured
+ * @return The width of the character
+ */
+ public int getCharacterWidth(char ch) {
+ checkState();
+ if(targetData.isJavaCommandBuffer) {
+ return targetData.commandBuffer.getAdvancedCharacterWidth(ch, true);
+ } else {
+ return OS.graphicsContext_getCharacterWidth(handle, ch, false);
+ }
+ }
+
+ /**
+ * Gets the <code>FontMetrics</code> data.
+ *
+ * Values are stored in the data array as follows:
+ * <ul>
+ * <li>data[0] = ASCENT
+ * <li>data[1] = AVERAGE CHAR WIDTH
+ * <li>data[2] = DESCENT
+ * <li>data[3] = HEIGHT
+ * <li>data[4] = LEADING
+ * </ul>
+ * @param data The integer array where to copy <code>FontMetrics</code> data.
+ * @param fontHandle If not zero then Fontmetrics data will be based on it
+ * otherwise data is based on the font which is currently selected into the receiver.
+ * @throws NullPointerException if data is null
+ * @throws IllegalStateException if no target is bound
+ */
+
+ public void getFontMetricsData(int[] data, int fontHandle) {
+ getFontMetricsData(data, fontHandle, true);
+ }
+
+ public void getFontMetricsData(int[] data, int fontHandle, boolean check) {
+ if (check) checkState();
+ if (data == null) {
+ throw new NullPointerException("data is null");
+ }
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.getFontMetricsData(data, fontHandle);
+ } else {
+ OS.graphicsContext_getFontMetricsData(handle, data, fontHandle);
+ }
+ }
+
+ /**
+ * Gets the alpha component of the background color.
+ *
+ * @return The alpha value (0-255)
+ * @throws IllegalStateException if no target is bound
+ */
+ public int getBackgroundAlpha() {
+ checkState();
+ if(targetData.isJavaCommandBuffer) {
+ return targetData.commandBuffer.getBackgroundAlpha();
+ } else {
+ return OS.graphicsContext_getBackgroundAlpha(handle);
+ }
+ }
+
+ /**
+ * Gets current background color in argb format.
+ *
+ * @return Interger containing current color in #AARRGGBB format
+ * @throws IllegalStateException if no target is bound
+ */
+ public int getBackgroundColor() {
+ checkState();
+ if(targetData.isJavaCommandBuffer) {
+ return targetData.commandBuffer.getBackgroundColor();
+ } else {
+ return OS.graphicsContext_getBackgroundColor(handle);
+ }
+ }
+
+ /**
+ * Gets current blending mode.
+ * Default blending mode is SRC_OVER.
+ *
+ * @return blending mode
+ * @throws IllegalStateException if no target is bound
+ */
+ public int getBlendingMode() {
+ checkState();
+ if(targetData.isJavaCommandBuffer) {
+ return targetData.commandBuffer.getBlendingMode();
+ } else {
+ return OS.graphicsContext_getBlendingMode(handle);
+ }
+ }
+
+ /**
+ * Gets the current clip rectangle. Retrieved clip is copied in given integer array which
+ * must have at least size of 4, in order to populate all clip values.
+ *
+ * Values are stored in clip array as follows:
+ * <ul>
+ * <li>clip[RECT_X] - the x coordinate of clip</li>
+ * <li>clip[RECT_Y] - the y coordinate of clip
+ * <li>clip[RECT_WIDTH] - the width of clip
+ * <li>clip[RECT_HEIGHT] - the height of clip
+ * </ul>
+ * @param clip The integer array where to copy clip data
+ * @throws NullPointerException if clip is null
+ * @throws IllegalArgumentException if clip.length < 4
+ * @throws IllegalStateException if no target is bound
+ */
+
+ public void getClip(int[] clip) {
+ checkState();
+ if (clip == null) {
+ throw new NullPointerException("clip is null");
+ }
+ if (clip.length < 4 ) {
+ throw new IllegalArgumentException("clip array size is < 4");
+ }
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.getClip(clip);
+ } else {
+ OS.graphicsContext_getClip(handle, clip);
+ }
+ }
+
+ /**
+ * Gets the alpha component of the foreground color.
+ *
+ * @return The alpha value (0-255)
+ * @throws IllegalStateException if no target is bound
+ */
+ public int getForegroundAlpha() {
+ checkState();
+ if(targetData.isJavaCommandBuffer) {
+ return targetData.commandBuffer.getForegroundAlpha();
+ } else {
+ return OS.graphicsContext_getForegroundAlpha(handle);
+ }
+ }
+
+ /**
+ * Gets current foreground color in argb format.
+ *
+ * @return Integer containing current color in #AARRGGBB format
+ * @throws IllegalStateException if no target is bound
+ */
+ public int getForegroundColor() {
+ checkState();
+ if(targetData.isJavaCommandBuffer) {
+ return targetData.commandBuffer.getForegroundColor();
+ } else {
+ return OS.graphicsContext_getForegroundColor(handle);
+ }
+ }
+
+ /**
+ * @see #getTextBoundingBox()
+ */
+ public void getTextBoundingBox(
+ int[] boundingBox, String string, int alignments, int flags) {
+ getTextBoundingBox(boundingBox, string, alignments, flags, 0, 0, 0, 0);
+ }
+
+ /**
+ * Returns a bounding box required by the given <code>string</code> when it is
+ * drawn inside the given rectangle (<code>rectX</code>, <code>rectY</code>,
+ * <code>rectWidth</code>, <code>rectHeight</code>) with the given <code>flags</code>
+ * and <code>alignments</code> using the currently set font.
+ * If the text does not fit within the given rectangle then the required bounding box
+ * is returned.
+ *
+ * @param boundingBox The integer array where to copy bounding box data.
+ * Result is stored in the array as follows:
+ * <ul>
+ * <li>boundingBox[RECT_X] - top-left x of the text bounding box</li>
+ * <li>boundingBox[RECT_Y] - top-left y of the text bounding box</li>
+ * <li>boundingBox[RECT_WIDTH] - the width of the text bounding box</li>
+ * <li>boundingBox[RECT_HEIGHT] - the height of the text bounding box</li>
+ * </ul>
+ * @param string The string
+ * @param alignments Alignments @see #drawString()
+ * @param flags Flags @see #drawString()
+ * @param rectX Drawing rectangle's top-left x coordinate.
+ * @param rectY Drawing rectangle's top-left y coordinate.
+ * @param rectWidth Drawing rectangle width.
+ * @param rectHeight Drawing rectangle height.
+ * @throws NullPointerException if <code>boundingBox</code> is null
+ * @throws NullPointerException if <code>string</code> is null
+ * @throws IllegalArgumentException if <code>boundingBox</code>.length < 4
+ * @throws IllegalStateException if no target is bound
+ */
+ public void getTextBoundingBox(
+ int[] boundingBox, String string, int alignments, int flags,
+ int rectX, int rectY, int rectWidth, int rectHeight) {
+ checkState();
+ if (boundingBox == null) {
+ throw new NullPointerException("boundingBox is null");
+ }
+ if (string == null) {
+ throw new NullPointerException("string is null");
+ }
+ if (boundingBox.length < 4 ) {
+ throw new IllegalArgumentException("boundingBox size must not be < 4");
+ }
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.getTextBoundingBox(boundingBox, string, alignments, flags, rectX, rectY, rectWidth, rectHeight);
+ } else {
+ OS.graphicsContext_getTextBoundingBox(
+ handle, boundingBox, string, alignments, flags, rectX, rectY, rectWidth, rectHeight);
+ }
+ }
+
+ /**
+ * Gets the stroke width in pixels.
+ *
+ * @return stroke width in pixels
+ * @throws IllegalStateException if no target is bound
+ */
+ public int getStrokeWidth() {
+ checkState();
+ if(targetData.isJavaCommandBuffer) {
+ return targetData.commandBuffer.getStrokeWidth();
+ } else {
+ return OS.graphicsContext_getStrokeWidth(handle);
+ }
+ }
+
+ /**
+ * Gets current stroke style, which will be one of the constants:
+ * <ul>
+ * <li>STROKE_NO: Stroke is not used</li>
+ * <li>STROKE_SOLID: Plain line style</li>
+ * <li>STROKE_DASH: Line contains dashes separated by a few pixels</li>
+ * <li>STROKE_DOT: Line contains dots separated by a few pixels</li>
+ * <li>STROKE_DASH_DOT: Dot-dash line type</li>
+ * <li>STROKE_DASH_DOT_DOT: Dash-dot-dot line type</li>
+ * </ul>
+ *
+ * @return The style used for strokes
+ * @throws IllegalStateException if no target is bound
+ */
+ public int getStrokeStyle() {
+ checkState();
+ if(targetData.isJavaCommandBuffer) {
+ return targetData.commandBuffer.getStrokeStyle();
+ } else {
+ return OS.graphicsContext_getStrokeStyle(handle);
+ }
+ }
+
+ /**
+ * Gets the x coorinate of translated origin
+ * @return the x coorinate of origin
+ */
+ public int getTranslateX() {
+ checkState();
+ if(targetData.isJavaCommandBuffer) {
+ return targetData.commandBuffer.getTranslateX();
+ } else {
+ return OS.graphicsContext_getTranslateX(handle);
+ }
+ }
+
+ /**
+ * Gets the y coorinate of translated origin
+ * @return the y coorinate of origin
+ */
+ public int getTranslateY() {
+ checkState();
+ if(targetData.isJavaCommandBuffer) {
+ return targetData.commandBuffer.getTranslateY();
+ } else {
+ return OS.graphicsContext_getTranslateY(handle);
+ }
+ }
+
+ /**
+ * Sets alpha component value for background color
+ *
+ * @param alpha The alpha value to be set in range 0-255
+ * @throws IllegalArgumentException if alpha is not in range of 0-255
+ * @throws IllegalStateException if no target is bound
+ */
+ public void setBackgroundAlpha(int alpha) {
+ checkState();
+ if (alpha < 0 || alpha > 255 ) {
+ throw new IllegalArgumentException("alpha is not in range 0-255");
+ }
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.setBackgroundAlpha(alpha);
+ } else {
+ OS.graphicsContext_setBackgroundAlpha(handle, alpha);
+ }
+ }
+
+ /**
+ * Sets the background color.
+ * The background color is used for fill operations and as the background color when text is drawn
+ *
+ * @param argb The color and alpha to be set in 32-bit format #AARRGGBB
+ * @throws IllegalStateException if no target is bound
+ */
+ public void setBackgroundColor(int argb, boolean updateAlpha) {
+ checkState();
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.setBackgroundColor(argb, updateAlpha);
+ } else {
+ OS.graphicsContext_setBackgroundColor(handle, argb, updateAlpha);
+ }
+ }
+
+ /**
+ * Sets the background color.
+ * The background color is used for fill operations and as the background color when text is drawn
+ *
+ * @param red The red component of the color being set in range 0-255
+ * @param green The green component of the color being set in range 0-255
+ * @param blue The blue component of the color being set in range 0-255
+ * @throws IllegalArgumentException if red, green or blue is not in range of 0-255
+ * @throws IllegalStateException if no target is bound
+ */
+ public void setBackgroundColor(int red, int green, int blue) {
+ checkState();
+
+ if (red < 0 || red > 255 ||
+ green < 0 || green > 255 ||
+ blue < 0 || blue > 255 ) {
+ throw new IllegalArgumentException();
+ }
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.setBackgroundColor((0xff000000 | (red << 16) | (green << 8) | blue), false);
+ } else {
+ OS.graphicsContext_setBackgroundColor(handle, (0xff000000 | (red << 16) | (green << 8) | blue), false);
+ }
+ }
+
+ /**
+ * Sets the background color.
+ * The background color is used for fill operations and as the background color when text is drawn
+ *
+ * @param alpha The alpha component of the color being set in range 0-255
+ * @param red The red component of the color being set in range 0-255
+ * @param green The green component of the color being set in range 0-255
+ * @param blue The blue component of the color being set in range 0-255
+ * @throws IllegalArgumentException if alpha, red, green or blue is not in range of 0-255
+ * @throws IllegalStateException if no target is bound
+ */
+ public void setBackgroundColor(int alpha, int red, int green, int blue) {
+ checkState();
+
+ if (alpha < 0 || alpha > 255 ||
+ red < 0 || red > 255 ||
+ green < 0 || green > 255 ||
+ blue < 0 || blue > 255 ) {
+ throw new IllegalArgumentException();
+ }
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.setBackgroundColor(((alpha << 24) | (red << 16) | (green << 8) | blue), true);
+ } else {
+ OS.graphicsContext_setBackgroundColor(handle,((alpha << 24) | (red << 16) | (green << 8) | blue), true);
+ }
+ }
+
+ /**
+ * Sets blending mode. The blending mode dictates how rendered pixels are combined with the destination pixels.
+ * The default blending mode is BLENDING_MODE_SRC_OVER, i.e. if not other mode is set using this method.
+ *
+ * If the bound target does not have and alpha channel the set mode has no effect.
+ *
+ * @param mode The blending mode to be set, one of BLENDING_MODE_SRC, BLENDING_MODE_SRC_OVER or BLENDING_MODE_XOR
+ * @throws IllegalArgumentException if mode is not one of listed above
+ * @throws IllegalStateException if no target is bound
+ */
+ public void setBlendingMode(int mode) {
+ checkState();
+ if ( mode != BLENDING_MODE_SRC &&
+ mode != BLENDING_MODE_SRC_OVER &&
+ mode != BLENDING_MODE_XOR) {
+ throw new IllegalArgumentException("Illegal blending mode");
+ }
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.setBlendingMode(mode);
+ } else {
+ OS.graphicsContext_setBlendingMode(handle, mode);
+ }
+ }
+
+ /**
+ * Returns if clipped or not.
+ * @return True if clipping region is set, and false otherwise
+ */
+ public boolean hasClipping() {
+ checkState();
+ if(targetData.isJavaCommandBuffer) {
+ return targetData.commandBuffer.hasClipping();
+ } else {
+ return OS.graphicsContext_hasClipping(handle);
+ }
+ }
+
+ /**
+ * Reset clipping region.
+ */
+ public void cancelClipping() {
+ checkState();
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.cancelClipping();
+ } else {
+ OS.graphicsContext_cancelClipping(handle);
+ }
+ }
+
+ /**
+ * Sets the clip rectangle where draw operations will take affect.
+ * Rendering operations have no effect outside of the clipping area.
+ *
+ * If intersects is set as true then the clip area is set to area where the current and given
+ * clip rectangle intersect, i.e. where they overlap.
+ *
+ * If width or height is negative request is silently ignored.
+ *
+ * @param x The x coordinate for the clip area
+ * @param y The y coordinate for the clip area
+ * @param width The width of the clip area
+ * @param height The height of the clip area
+ * @param intersects if true clip is set as interscetion of current and given clip rectangle,
+ * otherwise the clip is set as specified
+ * @throws IllegalStateException if no target is bound
+ */
+ public void setClip(int x, int y, int width, int height, boolean intersects) {
+ checkState();
+
+ if(width < 0 || height < 0) {
+ return;
+ }
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.setClip(x, y, width, height, intersects);
+ } else {
+ OS.graphicsContext_setClip(handle, x, y, width, height, intersects);
+ }
+ }
+
+ /**
+ * Sets font which is used in drawString.
+ *
+ * @param fontHandle The handle of native QFont
+ */
+ public void setFont(int fontHandle) {
+ checkState();
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.setFont(fontHandle);
+ } else {
+ OS.graphicsContext_setFont(handle, fontHandle);
+ }
+ }
+
+ /**
+ * Sets alpha component value for foreground color
+ *
+ * @param alpha The alpha value to be set in range 0-255
+ * @throws IllegalArgumentException if alpha is not in range of 0-255
+ * @throws IllegalStateException if no target is bound
+ */
+ public void setForegroundAlpha(int alpha) {
+ checkState();
+ if (alpha < 0 || alpha > 255 ) {
+ throw new IllegalArgumentException("alpha is not in range 0-255");
+ }
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.setForegroundAlpha(alpha);
+ } else {
+ OS.graphicsContext_setForegroundAlpha(handle, alpha);
+ }
+ }
+
+ /**
+ * Sets the foreground color.
+ * TThe foreground color is used for non fill primitives.
+ *
+ * @param argb The color and alpha to be set in 32-bit format #AARRGGBB
+ * @throws IllegalStateException if no target is bound
+ */
+ public void setForegroundColor(int argb, boolean updateAlpha) {
+ checkState();
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.setForegroundColor(argb, updateAlpha);
+ } else {
+ OS.graphicsContext_setForegroundColor(handle, argb, updateAlpha);
+ }
+ }
+ /**
+ * Sets the foreground color.
+ * The foreground color is used for non fill primitives.
+ *
+ * @param red The red component of the color being set in range 0-255
+ * @param green The green component of the color being set in range 0-255
+ * @param blue The blue component of the color being set in range 0-255
+ * @throws IllegalArgumentException if red, green or blue is not in range of 0-255
+ * @throws IllegalStateException if no target is bound
+ */
+ public void setForegroundColor(int red, int green, int blue) {
+ checkState();
+
+ if (red < 0 || red > 255 ||
+ green < 0 || green > 255 ||
+ blue < 0 || blue > 255 ) {
+ throw new IllegalArgumentException();
+ }
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.setForegroundColor((0xff000000 | (red << 16) | (green << 8) | blue), false);
+ } else {
+ OS.graphicsContext_setForegroundColor(handle, (0xff000000 | (red << 16) | (green << 8) | blue), false);
+ }
+ }
+
+ /**
+ * Sets the foreground color.
+ * The foreground color is used for non fill primitives.
+ *
+ * @param alpha The alpha component of the color being set in range 0-255
+ * @param red The red component of the color being set in range 0-255
+ * @param green The green component of the color being set in range 0-255
+ * @param blue The blue component of the color being set in range 0-255
+ * @throws IllegalArgumentException if alpha, red, green or blue is not in range of 0-255
+ * @throws IllegalStateException if no target is bound
+ */
+ public void setForegroundColor(int alpha, int red, int green, int blue) {
+ checkState();
+
+ if (alpha < 0 || alpha > 255 ||
+ red < 0 || red > 255 ||
+ green < 0 || green > 255 ||
+ blue < 0 || blue > 255 ) {
+ throw new IllegalArgumentException();
+ }
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.setForegroundColor(((alpha << 24) | (red << 16) | (green << 8) | blue), true);
+ } else {
+ OS.graphicsContext_setForegroundColor(handle,((alpha << 24) | (red << 16) | (green << 8) | blue), true);
+ }
+ }
+
+ /**
+ * Sets the stroke style, which is one of STROKE_SOLID, STROKE_DOT, STROKE_DASH,
+ * STROKE_DASHDOT or STROKE_DASHDOTDOT.
+ *
+ * @param style The style to be set
+ * @throws IllegalArgumentException if style is not one of listed above
+ * @throws IllegalStateException if no target is bound
+ */
+ public void setStrokeStyle(int style) {
+ checkState();
+
+ if (style != STROKE_SOLID &&
+ style != STROKE_DOT &&
+ style != STROKE_DASH &&
+ style != STROKE_DASH_DOT &&
+ style != STROKE_DASH_DOT_DOT ) {
+ throw new IllegalArgumentException("Invalid style: " + style);
+ }
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.setStrokeStyle(style);
+ } else {
+ OS.graphicsContext_setStrokeStyle(handle, style);
+ }
+ }
+
+ /**
+ * Sets the stroke width in pixels.
+ *
+ * @param width The stroke width in pixels
+ * @throws IllegalArgumentException if width is negative or zero
+ * @throws IllegalStateException if no target is bound
+ */
+ public void setStrokeWidth(int width) {
+ checkState();
+ if(width < 0) {
+ throw new IllegalArgumentException("Invalid width: " + width);
+ }
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.setStrokeWidth(width);
+ } else {
+ OS.graphicsContext_setStrokeWidth(handle, width);
+ }
+ }
+
+ /**
+ * Translates the origin of this graphics context to point (x,y). All coordinates used in subsequent
+ * rendering operations are relative to this new origin.
+ *
+ * @param x the x coordinate of new origin
+ * @param y the y coordinate of new origin
+ * @throws IllegalStateException if no target is bound
+ */
+ public void translate(int x, int y) {
+ checkState();
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.translate(x, y);
+ } else {
+ OS.graphicsContext_translate(handle, x, y);
+ }
+ }
+
+ /**
+ * Scales the coordinate system by (x, y). All coordinates used in subsequent
+ * rendering operations are scaled with these values.
+ *
+ * @param x the x scaling factor
+ * @param y the y scaling factor
+ * @throws IllegalStateException if no target is bound
+ */
+ public void scale(int x, int y) {
+ checkState();
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.scale(x, y);
+ } else {
+ OS.graphicsContext_scale(handle, x, y);
+ }
+ }
+
+ /**
+ * Resets any transformations that were made using translate(), scale().
+ *
+ * @throws IllegalStateException if no target is bound
+ */
+ public void resetTransform() {
+ checkState();
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.resetTransform();
+ } else {
+ OS.graphicsContext_resetTransform(handle);
+ }
+ }
+
+ /**
+ * Disposes this graphics context and frees all native resources. If there is a target bound, it is released
+ * automatically before cleaning resources. If this instance has already been disposed request is silently ignored.
+ */
+ public void dispose() {
+ Utils.validateUiThread();
+ // If already disposed just return
+ if (disposed) {
+ return;
+ } else {
+ // in case there's a bound target release it before disposing
+ if (targetData.target != null) {
+ releaseTarget();
+ }
+ // dispose native peer
+ OS.graphicsContext_dispose(handle);
+ handle = 0;
+ disposed = true;
+ }
+ }
+
+ /**
+ * Gets the status of this graphics context.
+ *
+ * @return True if this instance has been already disposed otherwise false
+ */
+ public boolean isDisposed() {
+ return disposed;
+ }
+
+ /**
+ * Gets the status of this graphics context.
+ *
+ * @return True if this instance is currently being used
+ */
+ public boolean isActive() {
+ return (targetData.target != null);
+ }
+
+ /**
+ * Returns native side handle.
+ * @return the native handle.
+ */
+ public int getHandle() {
+ return handle;
+ }
+
+ /**
+ * Saves graphics context settings.
+ */
+ public void saveSettings() {
+ checkState();
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.saveSettings();
+ } else {
+ OS.graphicsContext_saveSettings(handle);
+ }
+ }
+
+ /**
+ * Restores graphics context settings.
+ */
+ public void restoreSettings() {
+ checkState();
+ if(targetData.isJavaCommandBuffer) {
+ targetData.commandBuffer.restoreSettings();
+ } else {
+ OS.graphicsContext_restoreSettings(handle);
+ }
+ }
+
+ /**
+ * private ,method for checking the state of this instance.
+ */
+ private void checkState() {
+ Utils.validateUiThread();
+ if (disposed) {
+ throw new IllegalStateException("GraphicsContext already disposed");
+ }
+ if ( targetData.target == null ) {
+ throw new IllegalStateException("No target set");
+ }
+ }
+
+ /**
+ * Validates manipulation argument.
+ * @param manipulation Value to be checked
+ * @return true if given argument is valid, otherwise false
+ */
+ private boolean isManipulationValid(int manipulation) {
+ if ((manipulation != Image.TRANS_NONE) &&
+ (manipulation != Image.TRANS_ROT90) &&
+ (manipulation != Image.TRANS_ROT180)&&
+ (manipulation != Image.TRANS_ROT270) &&
+ (manipulation != Image.TRANS_MIRROR) &&
+ (manipulation != Image.TRANS_FLIP_HORIZONTAL) &&
+ (manipulation != Image.TRANS_FLIP_VERTICAL) &&
+ (manipulation != Image.TRANS_MIRROR_ROT180) &&
+ (manipulation != Image.TRANS_MIRROR_ROT270) &&
+ (manipulation != Image.TRANS_MIRROR_ROT90)) {
+ return false;
+ }
+ return true;
+ }
+
+ /**
+ * Processes command buffer
+ * @param buffer The buffer to be processed
+ */
+ private void processBuffer(JavaCommandBuffer buffer) {
+ int i = 0;
+ int intCount = buffer.intParamCount();
+ int imageCount = 0;
+ int stringCount = 0;
+ int rgbCount = 0;
+ int[] intParams = buffer.intParams();
+ Vector images = buffer.images();
+ String strings = buffer.strParams();
+ Vector rgbs = buffer.rgbParams();
+
+ while( i < intCount ) {
+ switch ((intParams[i] >> 24)) {
+ //
+ // Draw op code handling
+ //
+ case JavaCommandBuffer.DRAW_PREFIX:
+ {
+ switch (intParams[i++]) {
+ case JavaCommandBuffer.OP_DRAWARC:
+ {
+ OS.graphicsContext_drawArc(handle,
+ intParams[i++],
+ intParams[i++],
+ intParams[i++],
+ intParams[i++],
+ intParams[i++],
+ intParams[i++]);
+ break;
+ }
+ case JavaCommandBuffer.OP_DRAWLINE:
+ {
+ OS.graphicsContext_drawLine(handle,
+ intParams[i++],
+ intParams[i++],
+ intParams[i++],
+ intParams[i++]);
+ break;
+ }
+ case JavaCommandBuffer.OP_DRAWIMAGE1:
+ {
+ Image img = (Image)images.elementAt(imageCount++);
+ OS.graphicsContext_drawImage(handle,
+ img.handle,
+ intParams[i++],
+ intParams[i++]);
+ // As we made a shallow copy of the image in buffer
+ // its safe to delete that here
+ img.dispose();
+ break;
+ }
+ case JavaCommandBuffer.OP_DRAWIMAGE2:
+ {
+ Image img = (Image)images.elementAt(imageCount++);
+ OS.graphicsContext_drawImage(handle,
+ img.handle,
+ intParams[i++],
+ intParams[i++],
+ intParams[i++],
+ intParams[i++],
+ intParams[i++],
+ intParams[i++],
+ intParams[i++],
+ intParams[i++],
+ intParams[i++]);
+ // As we made a shallow copy of the image in buffer
+ // its safe to delete that here
+ img.dispose();
+ break;
+ }
+ case JavaCommandBuffer.OP_DRAWFOCUS:
+ {
+ OS.graphicsContext_drawFocus(handle,
+ intParams[i++],
+ intParams[i++],
+ intParams[i++],
+ intParams[i++]);
+ break;
+ }
+ case JavaCommandBuffer.OP_DRAWELLIPSE:
+ {
+ OS.graphicsContext_drawEllipse(handle,
+ intParams[i++],
+ intParams[i++],
+ intParams[i++],
+ intParams[i++]);
+ break;
+ }
+ case JavaCommandBuffer.OP_DRAWPOINT:
+ {
+ OS.graphicsContext_drawPoint(handle, intParams[i++], intParams[i++]);
+ break;
+ }
+ case JavaCommandBuffer.OP_DRAWPOLYGON:
+ {
+ int arraySize = intParams[i++];
+ int[] pointArray = new int[arraySize];
+ System.arraycopy(intParams, i, pointArray, 0, arraySize);
+ i += arraySize;
+ OS.graphicsContext_drawPolygon(handle, pointArray);
+ break;
+ }
+ case JavaCommandBuffer.OP_DRAWPOLYLINE:
+ {
+ int arraySize = intParams[i++];
+ int [] pointArray = new int[arraySize];
+ System.arraycopy(intParams, i, pointArray, 0, arraySize);
+ i += arraySize;
+ OS.graphicsContext_drawPolyline(handle, pointArray);
+ break;
+ }
+ case JavaCommandBuffer.OP_DRAWRECT:
+ {
+ OS.graphicsContext_drawRect(handle, intParams[i++], intParams[i++], intParams[i++], intParams[i++]);
+ break;
+ }
+ case JavaCommandBuffer.OP_DRAWRGB_INT:
+ {
+ int index = rgbCount++;
+ int[] rgbData = (int[])rgbs.elementAt(index);
+ OS.graphicsContext_drawRGB(handle,
+ rgbData,
+ intParams[i++],
+ intParams[i++],
+ intParams[i++],
+ intParams[i++],
+ intParams[i++],
+ intParams[i++],
+ (intParams[i++] != 0),
+ intParams[i++]);
+ rgbs.setElementAt(null, index);
+ break;
+ }
+ case JavaCommandBuffer.OP_DRAWRGB_BYTE:
+ {
+ int index1 = rgbCount++;
+ byte[] rgbData = (byte[])rgbs.elementAt(index1);
+ int index2 = rgbCount++;
+ byte[] transparencyMask = (byte[])rgbs.elementAt(index2);
+ OS.graphicsContext_drawRGB(handle,
+ rgbData,
+ transparencyMask,
+ intParams[i++],
+ intParams[i++],
+ intParams[i++],
+ intParams[i++],
+ intParams[i++],
+ intParams[i++],
+ intParams[i++],
+ intParams[i++]);
+ rgbs.setElementAt(null, index1);
+ rgbs.setElementAt(null, index2);
+ break;
+ }
+ case JavaCommandBuffer.OP_DRAWRGB_SHORT:
+ {
+ int index = rgbCount++;
+ short[] rgbData = (short[])rgbs.elementAt(index);
+ OS.graphicsContext_drawRGB(handle,
+ rgbData,
+ intParams[i++],
+ intParams[i++],
+ intParams[i++],
+ intParams[i++],
+ intParams[i++],
+ intParams[i++],
+ (intParams[i++] != 0),
+ intParams[i++],
+ intParams[i++]);
+ rgbs.setElementAt(null, index);
+ break;
+ }
+ case JavaCommandBuffer.OP_DRAWROUNDRECT:
+ {
+ OS.graphicsContext_fillRoundRect(handle,
+ intParams[i++],
+ intParams[i++],
+ intParams[i++],
+ intParams[i++],
+ intParams[i++],
+ intParams[i++]);
+ break;
+ }
+ case JavaCommandBuffer.OP_DRAWSTRING:
+ {
+ int stringLength = intParams[i++];
+ String string = strings.substring(stringCount, stringCount + stringLength);
+ stringCount += stringLength;
+ OS.graphicsContext_drawString(handle,
+ string,
+ intParams[i++],
+ intParams[i++],
+ intParams[i++],
+ intParams[i++],
+ intParams[i++],
+ intParams[i++],
+ (intParams[i++] != 0));
+ break;
+ }
+ default:
+ throw new RuntimeException("Internal error: Unknown opcode");
+ }
+ break;
+ }
+
+ //
+ // Fill op codes handling
+ //
+ case JavaCommandBuffer.FILL_PREFIX:
+ {
+ switch (intParams[i++]) {
+ case JavaCommandBuffer.OP_FILLRECT:
+ {
+ OS.graphicsContext_fillRect(handle,
+ intParams[i++],
+ intParams[i++],
+ intParams[i++],
+ intParams[i++]);
+ break;
+ }
+ case JavaCommandBuffer.OP_FILLARC:
+ {
+ OS.graphicsContext_fillArc(handle,
+ intParams[i++],
+ intParams[i++],
+ intParams[i++],
+ intParams[i++],
+ intParams[i++],
+ intParams[i++]);
+ break;
+ }
+ case JavaCommandBuffer.OP_FILLGRADIENTRECT:
+ {
+ OS.graphicsContext_fillGradientRect(handle,
+ intParams[i++],
+ intParams[i++],
+ intParams[i++],
+ intParams[i++],
+ (intParams[i++] != 0),
+ (intParams[i++] != 0));
+ break;
+ }
+ case JavaCommandBuffer.OP_FILLELLIPSE:
+ {
+ OS.graphicsContext_fillEllipse(handle,
+ intParams[i++],
+ intParams[i++],
+ intParams[i++],
+ intParams[i++]);
+ break;
+ }
+ case JavaCommandBuffer.OP_FILLPOLYGON:
+ {
+ int arraySize = intParams[i++];
+ int[] pointArray = new int[arraySize];
+ System.arraycopy(intParams, i, pointArray, 0, arraySize);
+ i += arraySize;
+ OS.graphicsContext_fillPolygon(handle, pointArray);
+ break;
+ }
+ case JavaCommandBuffer.OP_FILLROUNDRECT:
+ {
+ OS.graphicsContext_fillRoundRect(handle,
+ intParams[i++],
+ intParams[i++],
+ intParams[i++],
+ intParams[i++],
+ intParams[i++],
+ intParams[i++]);
+ break;
+ }
+ default:
+ throw new RuntimeException("Internal error: Unknown opcode");
+ }
+ break;
+ }
+
+ //
+ // Setter op code handling
+ //
+ case JavaCommandBuffer.SET_PREFIX:
+ {
+ switch (intParams[i++]) {
+ case JavaCommandBuffer.OP_SETBACKGROUNDALPHA:
+ {
+ OS.graphicsContext_setBackgroundAlpha(handle, intParams[i++]);
+ break;
+ }
+ case JavaCommandBuffer.OP_SETBACKGROUNDCOLOR:
+ {
+ OS.graphicsContext_setBackgroundColor(handle, intParams[i++], (intParams[i++] != 0));
+ break;
+ }
+ case JavaCommandBuffer.OP_SETBLENDINGMODE:
+ {
+ OS.graphicsContext_setBlendingMode(handle, intParams[i++]);
+ break;
+ }
+ case JavaCommandBuffer.OP_SETCLIP:
+ {
+ OS.graphicsContext_setClip(handle,
+ intParams[i++],
+ intParams[i++],
+ intParams[i++],
+ intParams[i++],
+ (intParams[i++] != 0));
+ break;
+ }
+ case JavaCommandBuffer.OP_SETFONT:
+ {
+ OS.graphicsContext_setFont(handle, intParams[i++]);
+ break;
+ }
+ case JavaCommandBuffer.OP_SETFOREGROUNDALPHA:
+ {
+ OS.graphicsContext_setForegroundAlpha(handle, intParams[i++]);
+ break;
+ }
+ case JavaCommandBuffer.OP_SETFOREGROUNDCOLOR:
+ {
+ OS.graphicsContext_setForegroundColor(handle, intParams[i++], (intParams[i++] != 0));
+ break;
+ }
+ case JavaCommandBuffer.OP_SETSTROKESTYLE:
+ {
+ OS.graphicsContext_setStrokeStyle(handle, intParams[i++]);
+ break;
+ }
+ case JavaCommandBuffer.OP_SETSTROKEWIDTH:
+ {
+ OS.graphicsContext_setStrokeWidth(handle, intParams[i++]);
+ break;
+ }
+ default:
+ throw new RuntimeException("Internal error: Unknown opcode");
+ }
+ break;
+ }
+
+ //
+ // misc op code handling
+ //
+ case JavaCommandBuffer.MISC_PREFIX:
+ {
+ switch (intParams[i++]) {
+ case JavaCommandBuffer.OP_CANCELCLIPPING:
+ {
+ OS.graphicsContext_cancelClipping(handle);
+ break;
+ }
+ case JavaCommandBuffer.OP_TRANSLATE:
+ {
+ OS.graphicsContext_translate(handle, intParams[i++], intParams[i++]);
+ break;
+ }
+ case JavaCommandBuffer.OP_SCALE:
+ {
+ OS.graphicsContext_scale(handle, intParams[i++], intParams[i++]);
+ break;
+ }
+ case JavaCommandBuffer.OP_RESETTRANSFORM:
+ {
+ OS.graphicsContext_resetTransform(handle);
+ break;
+ }
+ case JavaCommandBuffer.OP_COPYAREA1:
+ {
+ break;
+ }
+ case JavaCommandBuffer.OP_COPYAREA2:
+ {
+ break;
+ }
+ default:
+ throw new RuntimeException("Internal error: Unknown opcode");
+ }
+ break;
+ }
+ default:
+ throw new RuntimeException("Internal error: Unkonwn opcode category");
+ }
+ }
+ }
+
+ private final int handle(Widget w) {
+ return Internal_PackageSupport.handle(w);
+ }
+}