Graphics object that is
+ * a copy of this Graphics object.
+ * @return a new graphics context that is a copy of
+ * this graphics context.
+ * @since JDK1.0
+ */
+ public Graphics create() {
+ PeekGraphics newGraphics = null;
+
+ try {
+ newGraphics = (PeekGraphics) clone();
+ newGraphics.mGraphics = (Graphics2D) mGraphics.create();
+
+ /* This exception can not happen unless this
+ * class no longer implements the Cloneable
+ * interface.
+ */
+ } catch (CloneNotSupportedException e) {
+ // can never happen.
+ }
+
+ return newGraphics;
+ }
+
+ /**
+ * Translates the origin of the graphics context to the point
+ * (x, y) in the current coordinate system.
+ * Modifies this graphics context so that its new origin corresponds
+ * to the point (x, y) in this graphics context's
+ * original coordinate system. All coordinates used in subsequent
+ * rendering operations on this graphics context will be relative
+ * to this new origin.
+ * @param x the x coordinate.
+ * @param y the y coordinate.
+ * @since JDK1.0
+ */
+ public void translate(int x, int y) {
+ mGraphics.translate(x, y);
+ }
+
+ /**
+ * Concatenates the current transform of this Graphics2D with a
+ * translation transformation.
+ * This is equivalent to calling transform(T), where T is an
+ * AffineTransform represented by the following matrix:
+ * + * [ 1 0 tx ] + * [ 0 1 ty ] + * [ 0 0 1 ] + *+ */ + public void translate(double tx, double ty) { + mGraphics.translate(tx, ty); + } + + /** + * Concatenates the current transform of this Graphics2D with a + * rotation transformation. + * This is equivalent to calling transform(R), where R is an + * AffineTransform represented by the following matrix: + *
+ * [ cos(theta) -sin(theta) 0 ] + * [ sin(theta) cos(theta) 0 ] + * [ 0 0 1 ] + *+ * Rotating with a positive angle theta rotates points on the positive + * x axis toward the positive y axis. + * @param theta The angle of rotation in radians. + */ + public void rotate(double theta) { + mGraphics.rotate(theta); + } + + /** + * Concatenates the current transform of this Graphics2D with a + * translated rotation transformation. + * This is equivalent to the following sequence of calls: + *
+ * translate(x, y); + * rotate(theta); + * translate(-x, -y); + *+ * Rotating with a positive angle theta rotates points on the positive + * x axis toward the positive y axis. + * @param theta The angle of rotation in radians. + * @param x The x coordinate of the origin of the rotation + * @param y The x coordinate of the origin of the rotation + */ + public void rotate(double theta, double x, double y) { + mGraphics.rotate(theta, x, y); + } + + /** + * Concatenates the current transform of this Graphics2D with a + * scaling transformation. + * This is equivalent to calling transform(S), where S is an + * AffineTransform represented by the following matrix: + *
+ * [ sx 0 0 ] + * [ 0 sy 0 ] + * [ 0 0 1 ] + *+ */ + public void scale(double sx, double sy) { + mGraphics.scale(sx, sy); + } + + /** + * Concatenates the current transform of this Graphics2D with a + * shearing transformation. + * This is equivalent to calling transform(SH), where SH is an + * AffineTransform represented by the following matrix: + *
+ * [ 1 shx 0 ] + * [ shy 1 0 ] + * [ 0 0 1 ] + *+ * @param shx The factor by which coordinates are shifted towards the + * positive X axis direction according to their Y coordinate + * @param shy The factor by which coordinates are shifted towards the + * positive Y axis direction according to their X coordinate + */ + public void shear(double shx, double shy) { + mGraphics.shear(shx, shy); + } + + /** + * Gets this graphics context's current color. + * @return this graphics context's current color. + * @see java.awt.Color + * @see java.awt.Graphics#setColor + * @since JDK1.0 + */ + public Color getColor() { + return mGraphics.getColor(); + } + + /** + * Sets this graphics context's current color to the specified + * color. All subsequent graphics operations using this graphics + * context use this specified color. + * @param c the new rendering color. + * @see java.awt.Color + * @see java.awt.Graphics#getColor + * @since JDK1.0 + */ + public void setColor(Color c) { + mGraphics.setColor(c); + } + + /** + * Sets the paint mode of this graphics context to overwrite the + * destination with this graphics context's current color. + * This sets the logical pixel operation function to the paint or + * overwrite mode. All subsequent rendering operations will + * overwrite the destination with the current color. + * @since JDK1.0 + */ + public void setPaintMode() { + mGraphics.setPaintMode(); + } + + /** + * Sets the paint mode of this graphics context to alternate between + * this graphics context's current color and the new specified color. + * This specifies that logical pixel operations are performed in the + * XOR mode, which alternates pixels between the current color and + * a specified XOR color. + *
+ * When drawing operations are performed, pixels which are the + * current color are changed to the specified color, and vice versa. + *
+ * Pixels that are of colors other than those two colors are changed
+ * in an unpredictable but reversible manner; if the same figure is
+ * drawn twice, then all pixels are restored to their original values.
+ * @param c1 the XOR alternation color
+ * @since JDK1.0
+ */
+ public void setXORMode(Color c1) {
+ mGraphics.setXORMode(c1);
+ }
+
+ /**
+ * Gets the current font.
+ * @return this graphics context's current font.
+ * @see java.awt.Font
+ * @see java.awt.Graphics#setFont
+ * @since JDK1.0
+ */
+ public Font getFont() {
+ return mGraphics.getFont();
+ }
+
+ /**
+ * Sets this graphics context's font to the specified font.
+ * All subsequent text operations using this graphics context
+ * use this font.
+ * @param font the font.
+ * @see java.awt.Graphics#getFont
+ * @see java.awt.Graphics#drawChars(java.lang.String, int, int)
+ * @see java.awt.Graphics#drawString(byte[], int, int, int, int)
+ * @see java.awt.Graphics#drawBytes(char[], int, int, int, int)
+ * @since JDK1.0
+ */
+ public void setFont(Font font) {
+ mGraphics.setFont(font);
+ }
+
+ /**
+ * Gets the font metrics for the specified font.
+ * @return the font metrics for the specified font.
+ * @param f the specified font
+ * @see java.awt.Graphics#getFont
+ * @see java.awt.FontMetrics
+ * @see java.awt.Graphics#getFontMetrics()
+ * @since JDK1.0
+ */
+ public FontMetrics getFontMetrics(Font f) {
+ return mGraphics.getFontMetrics(f);
+ }
+
+ /**
+ * Get the rendering context of the font
+ * within this Graphics2D context.
+ */
+ public FontRenderContext getFontRenderContext() {
+ return mGraphics.getFontRenderContext();
+ }
+
+ /**
+ * Returns the bounding rectangle of the current clipping area.
+ * The coordinates in the rectangle are relative to the coordinate
+ * system origin of this graphics context.
+ * @return the bounding rectangle of the current clipping area.
+ * @see java.awt.Graphics#getClip
+ * @see java.awt.Graphics#clipRect
+ * @see java.awt.Graphics#setClip(int, int, int, int)
+ * @see java.awt.Graphics#setClip(Shape)
+ * @since JDK1.1
+ */
+ public Rectangle getClipBounds() {
+ return mGraphics.getClipBounds();
+ }
+
+
+ /**
+ * Intersects the current clip with the specified rectangle.
+ * The resulting clipping area is the intersection of the current
+ * clipping area and the specified rectangle.
+ * This method can only be used to make the current clip smaller.
+ * To set the current clip larger, use any of the setClip methods.
+ * Rendering operations have no effect outside of the clipping area.
+ * @param x the x coordinate of the rectangle to intersect the clip with
+ * @param y the y coordinate of the rectangle to intersect the clip with
+ * @param width the width of the rectangle to intersect the clip with
+ * @param height the height of the rectangle to intersect the clip with
+ * @see #setClip(int, int, int, int)
+ * @see #setClip(Shape)
+ */
+ public void clipRect(int x, int y, int width, int height) {
+ mGraphics.clipRect(x, y, width, height);
+ }
+
+
+ /**
+ * Sets the current clip to the rectangle specified by the given
+ * coordinates.
+ * Rendering operations have no effect outside of the clipping area.
+ * @param x the x coordinate of the new clip rectangle.
+ * @param y the y coordinate of the new clip rectangle.
+ * @param width the width of the new clip rectangle.
+ * @param height the height of the new clip rectangle.
+ * @see java.awt.Graphics#clipRect
+ * @see java.awt.Graphics#setClip(Shape)
+ * @since JDK1.1
+ */
+ public void setClip(int x, int y, int width, int height) {
+ mGraphics.setClip(x, y, width, height);
+ }
+
+ /**
+ * Gets the current clipping area.
+ * @return a Shape object representing the
+ * current clipping area.
+ * @see java.awt.Graphics#getClipBounds
+ * @see java.awt.Graphics#clipRect
+ * @see java.awt.Graphics#setClip(int, int, int, int)
+ * @see java.awt.Graphics#setClip(Shape)
+ * @since JDK1.1
+ */
+ public Shape getClip() {
+ return mGraphics.getClip();
+ }
+
+
+ /**
+ * Sets the current clipping area to an arbitrary clip shape.
+ * Not all objects which implement the Shape
+ * interface can be used to set the clip. The only
+ * Shape objects which are guaranteed to be
+ * supported are Shape objects which are
+ * obtained via the getClip method and via
+ * Rectangle objects.
+ * @see java.awt.Graphics#getClip()
+ * @see java.awt.Graphics#clipRect
+ * @see java.awt.Graphics#setClip(int, int, int, int)
+ * @since JDK1.1
+ */
+ public void setClip(Shape clip) {
+ mGraphics.setClip(clip);
+ }
+
+
+ /**
+ * Copies an area of the component by a distance specified by
+ * dx and dy. From the point specified
+ * by x and y, this method
+ * copies downwards and to the right. To copy an area of the
+ * component to the left or upwards, specify a negative value for
+ * dx or dy.
+ * If a portion of the source rectangle lies outside the bounds
+ * of the component, or is obscured by another window or component,
+ * copyArea will be unable to copy the associated
+ * pixels. The area that is omitted can be refreshed by calling
+ * the component's paint method.
+ * @param x the x coordinate of the source rectangle.
+ * @param y the y coordinate of the source rectangle.
+ * @param width the width of the source rectangle.
+ * @param height the height of the source rectangle.
+ * @param dx the horizontal distance to copy the pixels.
+ * @param dy the vertical distance to copy the pixels.
+ * @since JDK1.0
+ */
+ public void copyArea(int x, int y, int width, int height,
+ int dx, int dy) {
+ // This method is not supported for printing so we do nothing here.
+ }
+
+ /**
+ * Draws a line, using the current color, between the points
+ * (x1, y1) and (x2, y2)
+ * in this graphics context's coordinate system.
+ * @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.
+ * @since JDK1.0
+ */
+ public void drawLine(int x1, int y1, int x2, int y2) {
+ addStrokeShape(new Line2D.Float(x1, y1, x2, y2));
+ mPrintMetrics.draw(this);
+ }
+
+
+
+ /**
+ * Fills the specified rectangle.
+ * The left and right edges of the rectangle are at
+ * x and x + width - 1.
+ * The top and bottom edges are at
+ * y and y + height - 1.
+ * The resulting rectangle covers an area
+ * width pixels wide by
+ * height pixels tall.
+ * The rectangle is filled using the graphics context's current 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.
+ * @see java.awt.Graphics#fillRect
+ * @see java.awt.Graphics#clearRect
+ * @since JDK1.0
+ */
+ public void fillRect(int x, int y, int width, int height) {
+
+ addDrawingRect(new Rectangle2D.Float(x, y, width, height));
+ mPrintMetrics.fill(this);
+
+ }
+
+ /**
+ * Clears the specified rectangle by filling it with the background
+ * color of the current drawing surface. This operation does not
+ * use the current paint mode.
+ *
+ * Beginning with Java 1.1, the background color
+ * of offscreen images may be system dependent. Applications should
+ * use setColor followed by fillRect to
+ * ensure that an offscreen image is cleared to a specific color.
+ * @param x the x coordinate of the rectangle to clear.
+ * @param y the y coordinate of the rectangle to clear.
+ * @param width the width of the rectangle to clear.
+ * @param height the height of the rectangle to clear.
+ * @see java.awt.Graphics#fillRect(int, int, int, int)
+ * @see java.awt.Graphics#drawRect
+ * @see java.awt.Graphics#setColor(java.awt.Color)
+ * @see java.awt.Graphics#setPaintMode
+ * @see java.awt.Graphics#setXORMode(java.awt.Color)
+ * @since JDK1.0
+ */
+ public void clearRect(int x, int y, int width, int height) {
+ Rectangle2D.Float rect = new Rectangle2D.Float(x, y, width, height);
+ addDrawingRect(rect);
+ mPrintMetrics.clear(this);
+ }
+
+ /**
+ * Draws an outlined round-cornered rectangle using this graphics
+ * context's current color. The left and right edges of the rectangle
+ * are at x and x + width,
+ * respectively. The top and bottom edges of the rectangle are at
+ * y and y + height.
+ * @param x the x coordinate of the rectangle to be drawn.
+ * @param y the y coordinate of the rectangle to be drawn.
+ * @param width the width of the rectangle to be drawn.
+ * @param height the height of the rectangle to be drawn.
+ * @param arcWidth the horizontal diameter of the arc
+ * at the four corners.
+ * @param arcHeight the vertical diameter of the arc
+ * at the four corners.
+ * @see java.awt.Graphics#fillRoundRect
+ * @since JDK1.0
+ */
+ public void drawRoundRect(int x, int y, int width, int height,
+ int arcWidth, int arcHeight) {
+ addStrokeShape(new RoundRectangle2D.Float(x, y, width, height, arcWidth, arcHeight));
+ mPrintMetrics.draw(this);
+
+ }
+
+ /**
+ * Fills the specified rounded corner rectangle with the current color.
+ * The left and right edges of the rectangle
+ * are at x and x + width - 1,
+ * respectively. The top and bottom edges of the rectangle are at
+ * y and y + height - 1.
+ * @param x the x coordinate of the rectangle to be filled.
+ * @param y the y coordinate of the rectangle to be filled.
+ * @param width the width of the rectangle to be filled.
+ * @param height the height of the rectangle to be filled.
+ * @param arcWidth the horizontal diameter
+ * of the arc at the four corners.
+ * @param arcHeight the vertical diameter
+ * of the arc at the four corners.
+ * @see java.awt.Graphics#drawRoundRect
+ * @since JDK1.0
+ */
+ public void fillRoundRect(int x, int y, int width, int height,
+ int arcWidth, int arcHeight) {
+ Rectangle2D.Float rect = new Rectangle2D.Float(x, y,width, height);
+ addDrawingRect(rect);
+ mPrintMetrics.fill(this);
+ }
+
+ /**
+ * Draws the outline of an oval.
+ * The result is a circle or ellipse that fits within the
+ * rectangle specified by the x, y,
+ * width, and height arguments.
+ *
+ * The oval covers an area that is
+ * width + 1 pixels wide
+ * and height + 1 pixels tall.
+ * @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.
+ * @see java.awt.Graphics#fillOval
+ * @since JDK1.0
+ */
+ public void drawOval(int x, int y, int width, int height) {
+ addStrokeShape(new Rectangle2D.Float(x, y, width, height));
+ mPrintMetrics.draw(this);
+ }
+
+ /**
+ * Fills an oval bounded by the specified rectangle with the
+ * current 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.
+ * @see java.awt.Graphics#drawOval
+ * @since JDK1.0
+ */
+ public void fillOval(int x, int y, int width, int height) {
+ Rectangle2D.Float rect = new Rectangle2D.Float(x, y, width, height);
+ addDrawingRect(rect);
+ mPrintMetrics.fill(this);
+
+ }
+
+
+ /**
+ * Draws the outline of a circular or elliptical arc
+ * covering the specified rectangle.
+ *
+ * The resulting arc begins at startAngle and extends
+ * for arcAngle 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.
+ *
+ * The center of the arc is the center of the rectangle whose origin
+ * is (x, y) and whose size is specified by the
+ * width and height arguments.
+ *
+ * The resulting arc covers an area
+ * width + 1 pixels wide
+ * by height + 1 pixels tall.
+ * @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.
+ * @see java.awt.Graphics#fillArc
+ * @since JDK1.0
+ */
+ public void drawArc(int x, int y, int width, int height,
+ int startAngle, int arcAngle) {
+ addStrokeShape(new Rectangle2D.Float(x, y, width, height));
+ mPrintMetrics.draw(this);
+
+ }
+
+ /**
+ * Fills a circular or elliptical arc covering the specified rectangle.
+ *
+ * The resulting arc begins at startAngle and extends
+ * for arcAngle degrees.
+ * Angles are interpreted such that 0 degrees
+ * is at the 3 o'clock position.
+ * A positive value indicates a counter-clockwise rotation
+ * while a negative value indicates a clockwise rotation.
+ *
+ * The center of the arc is the center of the rectangle whose origin
+ * is (x, y) and whose size is specified by the
+ * width and height arguments.
+ *
+ * The resulting arc covers an area
+ * width + 1 pixels wide
+ * by height + 1 pixels tall.
+ * @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.
+ * @see java.awt.Graphics#drawArc
+ * @since JDK1.0
+ */
+ public void fillArc(int x, int y, int width, int height,
+ int startAngle, int arcAngle) {
+ Rectangle2D.Float rect = new Rectangle2D.Float(x, y,width, height);
+ addDrawingRect(rect);
+ mPrintMetrics.fill(this);
+
+ }
+
+ /**
+ * Draws a sequence of connected lines defined by
+ * arrays of x and y coordinates.
+ * Each pair of (x, y) coordinates defines a point.
+ * The figure is not closed if the first point
+ * differs from the last point.
+ * @param xPoints an array of x points
+ * @param yPoints an array of y points
+ * @param nPoints the total number of points
+ * @see java.awt.Graphics#drawPolygon(int[], int[], int)
+ * @since JDK1.1
+ */
+ public void drawPolyline(int xPoints[], int yPoints[],
+ int nPoints) {
+ if (nPoints > 0) {
+ int x = xPoints[0];
+ int y = yPoints[0];
+
+ for (int i = 1; i < nPoints; i++) {
+ drawLine(x, y, xPoints[i], yPoints[i]);
+ x = xPoints[i];
+ y = yPoints[i];
+ }
+ }
+
+ }
+
+ /**
+ * Draws a closed polygon defined by
+ * arrays of x and y coordinates.
+ * Each pair of (x, y) coordinates defines a point.
+ *
+ * This method draws the polygon defined by nPoint line
+ * segments, where the first nPoint - 1
+ * line segments are line segments from
+ * (xPoints[i - 1], yPoints[i - 1])
+ * to (xPoints[i], yPoints[i]), for
+ * 1 ≤ i ≤ nPoints.
+ * The figure is automatically closed by drawing a line connecting
+ * the final point to the first point, if those points are different.
+ * @param xPoints a an array of x coordinates.
+ * @param yPoints a an array of y coordinates.
+ * @param nPoints a the total number of points.
+ * @see java.awt.Graphics#fillPolygon
+ * @see java.awt.Graphics#drawPolyline
+ * @since JDK1.0
+ */
+ public void drawPolygon(int xPoints[], int yPoints[],
+ int nPoints) {
+ if (nPoints > 0) {
+ drawPolyline(xPoints, yPoints, nPoints);
+ drawLine(xPoints[nPoints - 1], yPoints[nPoints - 1],
+ xPoints[0], yPoints[0]);
+ }
+
+ }
+
+ /**
+ * Fills a closed polygon defined by
+ * arrays of x and y coordinates.
+ *
+ * This method draws the polygon defined by nPoint line
+ * segments, where the first nPoint - 1
+ * line segments are line segments from
+ * (xPoints[i - 1], yPoints[i - 1])
+ * to (xPoints[i], yPoints[i]), for
+ * 1 ≤ i ≤ nPoints.
+ * The figure is automatically closed by drawing a line connecting
+ * the final point to the first point, if those points are different.
+ *
+ * The area inside the polygon is defined using an
+ * even-odd fill rule, also known as the alternating rule.
+ * @param xPoints a an array of x coordinates.
+ * @param yPoints a an array of y coordinates.
+ * @param nPoints a the total number of points.
+ * @see java.awt.Graphics#drawPolygon(int[], int[], int)
+ * @since JDK1.0
+ */
+ public void fillPolygon(int xPoints[], int yPoints[],
+ int nPoints) {
+ if (nPoints > 0) {
+ int minX = xPoints[0];
+ int minY = yPoints[0];
+ int maxX = xPoints[0];
+ int maxY = yPoints[0];
+
+ for (int i = 1; i < nPoints; i++) {
+
+ if (xPoints[i] < minX) {
+ minX = xPoints[i];
+ } else if (xPoints[i] > maxX) {
+ maxX = xPoints[i];
+ }
+
+ if (yPoints[i] < minY) {
+ minY = yPoints[i];
+ } else if (yPoints[i] > maxY) {
+ maxY = yPoints[i];
+ }
+ }
+
+ addDrawingRect(minX, minY, maxX - minX, maxY - minY);
+ }
+
+ mPrintMetrics.fill(this);
+
+ }
+
+
+ /**
+ * Draws the text given by the specified string, using this
+ * graphics context's current font and color. The baseline of the
+ * first character is at position (x, y) in this
+ * graphics context's coordinate system.
+ * @param str the string to be drawn.
+ * @param x the x coordinate.
+ * @param y the y coordinate.
+ * @see java.awt.Graphics#drawBytes
+ * @see java.awt.Graphics#drawChars
+ * @since JDK1.0
+ */
+ public void drawString(String str, int x, int y) {
+
+ drawString(str, (float)x, (float)y);
+ }
+
+ /**
+ * Draws the text given by the specified iterator, using this
+ * graphics context's current color. The iterator has to specify a font
+ * for each character. The baseline of the
+ * first character is at position (x, y) in this
+ * graphics context's coordinate system.
+ * The rendering attributes applied include the clip, transform,
+ * paint or color, and composite attributes.
+ * For characters in script systems such as Hebrew and Arabic,
+ * the glyphs may be draw from right to left, in which case the
+ * coordinate supplied is the the location of the leftmost character
+ * on the baseline.
+ * @param iterator the iterator whose text is to be drawn
+ * @param x,y the coordinates where the iterator's text should be drawn.
+ * @see #setPaint
+ * @see java.awt.Graphics#setColor
+ * @see #setTransform
+ * @see #setComposite
+ * @see #setClip
+ */
+ public void drawString(AttributedCharacterIterator iterator,
+ int x, int y) {
+
+ drawString(iterator, (float)x, (float)y);
+ }
+
+ /**
+ * Draws the text given by the specified iterator, using this
+ * graphics context's current color. The iterator has to specify a font
+ * for each character. The baseline of the
+ * first character is at position (x, y) in this
+ * graphics context's coordinate system.
+ * The rendering attributes applied include the clip, transform,
+ * paint or color, and composite attributes.
+ * For characters in script systems such as Hebrew and Arabic,
+ * the glyphs may be draw from right to left, in which case the
+ * coordinate supplied is the the location of the leftmost character
+ * on the baseline.
+ * @param iterator the iterator whose text is to be drawn
+ * @param x,y the coordinates where the iterator's text should be drawn.
+ * @see #setPaint
+ * @see java.awt.Graphics#setColor
+ * @see #setTransform
+ * @see #setComposite
+ * @see #setClip
+ */
+ public void drawString(AttributedCharacterIterator iterator,
+ float x, float y) {
+ if (iterator == null) {
+ throw new
+ NullPointerException("AttributedCharacterIterator is null");
+ }
+
+ TextLayout layout = new TextLayout(iterator, getFontRenderContext());
+ layout.draw(this, x, y);
+ }
+
+
+ /**
+ * Draws as much of the specified image as is currently available.
+ * The image is drawn with its top-left corner at
+ * (x, y) in this graphics context's coordinate
+ * space. Transparent pixels in the image do not affect whatever
+ * pixels are already there.
+ *
+ * This method returns immediately in all cases, even if the + * complete image has not yet been loaded, and it has not been dithered + * and converted for the current output device. + *
+ * If the image has not yet been completely loaded, then
+ * drawImage returns false. As more of
+ * the image becomes available, the process that draws the image notifies
+ * the specified image observer.
+ * @param img the specified image to be drawn.
+ * @param x the x coordinate.
+ * @param y the y coordinate.
+ * @param observer object to be notified as more of
+ * the image is converted.
+ * @see java.awt.Image
+ * @see java.awt.image.ImageObserver
+ * @see java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int)
+ * @since JDK1.0
+ */
+ public boolean drawImage(Image img, int x, int y,
+ ImageObserver observer) {
+
+ if (img == null) {
+ return true;
+ }
+
+ /* The ImageWaiter creation does not return until the
+ * image is loaded.
+ */
+ ImageWaiter dim = new ImageWaiter(img);
+
+ addDrawingRect(x, y, dim.getWidth(), dim.getHeight());
+ mPrintMetrics.drawImage(this, img);
+
+ return mGraphics.drawImage(img, x, y, observer);
+ }
+
+
+ /**
+ * Draws as much of the specified image as has already been scaled
+ * to fit inside the specified rectangle.
+ *
+ * The image is drawn inside the specified rectangle of this + * graphics context's coordinate space, and is scaled if + * necessary. Transparent pixels do not affect whatever pixels + * are already there. + *
+ * This method returns immediately in all cases, even if the
+ * entire image has not yet been scaled, dithered, and converted
+ * for the current output device.
+ * If the current output representation is not yet complete, then
+ * drawImage returns false. As more of
+ * the image becomes available, the process that draws the image notifies
+ * the image observer by calling its imageUpdate method.
+ *
+ * A scaled version of an image will not necessarily be + * available immediately just because an unscaled version of the + * image has been constructed for this output device. Each size of + * the image may be cached separately and generated from the original + * data in a separate image production sequence. + * @param img the specified image to be drawn. + * @param x the x coordinate. + * @param y the y coordinate. + * @param width the width of the rectangle. + * @param height the height of the rectangle. + * @param observer object to be notified as more of + * the image is converted. + * @see java.awt.Image + * @see java.awt.image.ImageObserver + * @see java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int) + * @since JDK1.0 + */ + public boolean drawImage(Image img, int x, int y, + int width, int height, + ImageObserver observer) { + + if (img == null) { + return true; + } + addDrawingRect(x, y, width, height); + mPrintMetrics.drawImage(this, img); + + return mGraphics.drawImage(img, x, y, width, height, observer); + + } + + /** + * Draws as much of the specified image as is currently available. + * The image is drawn with its top-left corner at + * (x, y) in this graphics context's coordinate + * space. Transparent pixels are drawn in the specified + * background color. + *
+ * This operation is equivalent to filling a rectangle of the + * width and height of the specified image with the given color and then + * drawing the image on top of it, but possibly more efficient. + *
+ * This method returns immediately in all cases, even if the + * complete image has not yet been loaded, and it has not been dithered + * and converted for the current output device. + *
+ * If the image has not yet been completely loaded, then
+ * drawImage returns false. As more of
+ * the image becomes available, the process that draws the image notifies
+ * the specified image observer.
+ * @param img the specified image to be drawn.
+ * @param x the x coordinate.
+ * @param y the y coordinate.
+ * @param bgcolor the background color to paint under the
+ * non-opaque portions of the image.
+ * @param observer object to be notified as more of
+ * the image is converted.
+ * @see java.awt.Image
+ * @see java.awt.image.ImageObserver
+ * @see java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int)
+ * @since JDK1.0
+ */
+ public boolean drawImage(Image img, int x, int y,
+ Color bgcolor,
+ ImageObserver observer) {
+
+ if (img == null) {
+ return true;
+ }
+
+ /* The ImageWaiter creation does not return until the
+ * image is loaded.
+ */
+ ImageWaiter dim = new ImageWaiter(img);
+
+ addDrawingRect(x, y, dim.getWidth(), dim.getHeight());
+ mPrintMetrics.drawImage(this, img);
+
+ return mGraphics.drawImage(img, x, y, bgcolor, observer);
+ }
+
+
+ /**
+ * Draws as much of the specified image as has already been scaled
+ * to fit inside the specified rectangle.
+ *
+ * The image is drawn inside the specified rectangle of this + * graphics context's coordinate space, and is scaled if + * necessary. Transparent pixels are drawn in the specified + * background color. + * This operation is equivalent to filling a rectangle of the + * width and height of the specified image with the given color and then + * drawing the image on top of it, but possibly more efficient. + *
+ * This method returns immediately in all cases, even if the
+ * entire image has not yet been scaled, dithered, and converted
+ * for the current output device.
+ * If the current output representation is not yet complete then
+ * drawImage returns false. As more of
+ * the image becomes available, the process that draws the image notifies
+ * the specified image observer.
+ *
+ * A scaled version of an image will not necessarily be + * available immediately just because an unscaled version of the + * image has been constructed for this output device. Each size of + * the image may be cached separately and generated from the original + * data in a separate image production sequence. + * @param img the specified image to be drawn. + * @param x the x coordinate. + * @param y the y coordinate. + * @param width the width of the rectangle. + * @param height the height of the rectangle. + * @param bgcolor the background color to paint under the + * non-opaque portions of the image. + * @param observer object to be notified as more of + * the image is converted. + * @see java.awt.Image + * @see java.awt.image.ImageObserver + * @see java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int) + * @since JDK1.0 + */ + public boolean drawImage(Image img, int x, int y, + int width, int height, + Color bgcolor, + ImageObserver observer) { + + if (img == null) { + return true; + } + + addDrawingRect(x, y, width, height); + mPrintMetrics.drawImage(this, img); + + return mGraphics.drawImage(img, x, y, width, height, bgcolor, observer); + + } + + /** + * Draws as much of the specified area of the specified image as is + * currently available, scaling it on the fly to fit inside the + * specified area of the destination drawable surface. Transparent pixels + * do not affect whatever pixels are already there. + *
+ * This method returns immediately in all cases, even if the
+ * image area to be drawn has not yet been scaled, dithered, and converted
+ * for the current output device.
+ * If the current output representation is not yet complete then
+ * drawImage returns false. As more of
+ * the image becomes available, the process that draws the image notifies
+ * the specified image observer.
+ *
+ * This method always uses the unscaled version of the image + * to render the scaled rectangle and performs the required + * scaling on the fly. It does not use a cached, scaled version + * of the image for this operation. Scaling of the image from source + * to destination is performed such that the first coordinate + * of the source rectangle is mapped to the first coordinate of + * the destination rectangle, and the second source coordinate is + * mapped to the second destination coordinate. The subimage is + * scaled and flipped as needed to preserve those mappings. + * @param img the specified image to be drawn + * @param dx1 the x coordinate of the first corner of the + * destination rectangle. + * @param dy1 the y coordinate of the first corner of the + * destination rectangle. + * @param dx2 the x coordinate of the second corner of the + * destination rectangle. + * @param dy2 the y coordinate of the second corner of the + * destination rectangle. + * @param sx1 the x coordinate of the first corner of the + * source rectangle. + * @param sy1 the y coordinate of the first corner of the + * source rectangle. + * @param sx2 the x coordinate of the second corner of the + * source rectangle. + * @param sy2 the y coordinate of the second corner of the + * source rectangle. + * @param observer object to be notified as more of the image is + * scaled and converted. + * @see java.awt.Image + * @see java.awt.image.ImageObserver + * @see java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int) + * @since JDK1.1 + */ + public boolean drawImage(Image img, + int dx1, int dy1, int dx2, int dy2, + int sx1, int sy1, int sx2, int sy2, + ImageObserver observer) { + + if (img == null) { + return true; + } + + int width = dx2 - dx1; + int height = dy2 - dy1; + + addDrawingRect(dx1, dy1, width, height); + mPrintMetrics.drawImage(this, img); + + return mGraphics.drawImage(img, dx1, dy1, dx2, dy2, + sx1, sy1, sx2, sy2, observer); + + } + + + /** + * Draws as much of the specified area of the specified image as is + * currently available, scaling it on the fly to fit inside the + * specified area of the destination drawable surface. + *
+ * Transparent pixels are drawn in the specified background color. + * This operation is equivalent to filling a rectangle of the + * width and height of the specified image with the given color and then + * drawing the image on top of it, but possibly more efficient. + *
+ * This method returns immediately in all cases, even if the
+ * image area to be drawn has not yet been scaled, dithered, and converted
+ * for the current output device.
+ * If the current output representation is not yet complete then
+ * drawImage returns false. As more of
+ * the image becomes available, the process that draws the image notifies
+ * the specified image observer.
+ *
+ * This method always uses the unscaled version of the image
+ * to render the scaled rectangle and performs the required
+ * scaling on the fly. It does not use a cached, scaled version
+ * of the image for this operation. Scaling of the image from source
+ * to destination is performed such that the first coordinate
+ * of the source rectangle is mapped to the first coordinate of
+ * the destination rectangle, and the second source coordinate is
+ * mapped to the second destination coordinate. The subimage is
+ * scaled and flipped as needed to preserve those mappings.
+ * @param img the specified image to be drawn
+ * @param dx1 the x coordinate of the first corner of the
+ * destination rectangle.
+ * @param dy1 the y coordinate of the first corner of the
+ * destination rectangle.
+ * @param dx2 the x coordinate of the second corner of the
+ * destination rectangle.
+ * @param dy2 the y coordinate of the second corner of the
+ * destination rectangle.
+ * @param sx1 the x coordinate of the first corner of the
+ * source rectangle.
+ * @param sy1 the y coordinate of the first corner of the
+ * source rectangle.
+ * @param sx2 the x coordinate of the second corner of the
+ * source rectangle.
+ * @param sy2 the y coordinate of the second corner of the
+ * source rectangle.
+ * @param bgcolor the background color to paint under the
+ * non-opaque portions of the image.
+ * @param observer object to be notified as more of the image is
+ * scaled and converted.
+ * @see java.awt.Image
+ * @see java.awt.image.ImageObserver
+ * @see java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int)
+ * @since JDK1.1
+ */
+ public boolean drawImage(Image img,
+ int dx1, int dy1, int dx2, int dy2,
+ int sx1, int sy1, int sx2, int sy2,
+ Color bgcolor,
+ ImageObserver observer) {
+
+ if (img == null) {
+ return true;
+ }
+
+ int width = dx2 - dx1;
+ int height = dy2 - dy1;
+
+ addDrawingRect(dx1, dy1, width, height);
+ mPrintMetrics.drawImage(this, img);
+
+ return mGraphics.drawImage(img, dx1, dy1, dx2, dy2,
+ sx1, sy1, sx2, sy2, bgcolor, observer);
+
+ }
+
+
+ /**
+ * Draws an image, applying a transform from image space into user space
+ * before drawing.
+ * The transformation from user space into device space is done with
+ * the current transform in the Graphics2D.
+ * The given transformation is applied to the image before the
+ * transform attribute in the Graphics2D state is applied.
+ * The rendering attributes applied include the clip, transform,
+ * and composite attributes. Note that the result is
+ * undefined, if the given transform is noninvertible.
+ * @param img The image to be drawn.
+ * @param xform The transformation from image space into user space.
+ * @see #transform
+ * @see #setTransform
+ * @see #setComposite
+ * @see #clip
+ * @see #setClip
+ */
+ public void drawRenderedImage(RenderedImage img,
+ AffineTransform xform) {
+
+ if (img == null) {
+ return;
+ }
+
+ mPrintMetrics.drawImage(this, img);
+ mDrawingArea.addInfinite();
+ }
+
+
+ public void drawRenderableImage(RenderableImage img,
+ AffineTransform xform) {
+
+ if (img == null) {
+ return;
+ }
+
+ mPrintMetrics.drawImage(this, img);
+ mDrawingArea.addInfinite();
+ }
+
+ /**
+ * Disposes of this graphics context and releases
+ * any system resources that it is using.
+ * A Graphics object cannot be used after
+ * disposehas been called.
+ *
+ * When a Java program runs, a large number of Graphics
+ * objects can be created within a short time frame.
+ * Although the finalization process of the garbage collector
+ * also disposes of the same system resources, it is preferable
+ * to manually free the associated resources by calling this
+ * method rather than to rely on a finalization process which
+ * may not run to completion for a long period of time.
+ *
+ * Graphics objects which are provided as arguments to the
+ * paint and update methods
+ * of components are automatically released by the system when
+ * those methods return. For efficiency, programmers should
+ * call dispose when finished using
+ * a Graphics object only if it was created
+ * directly from a component or another Graphics object.
+ * @see java.awt.Graphics#finalize
+ * @see java.awt.Component#paint
+ * @see java.awt.Component#update
+ * @see java.awt.Component#getGraphics
+ * @see java.awt.Graphics#create
+ * @since JDK1.0
+ */
+ public void dispose() {
+ mGraphics.dispose();
+ }
+
+ /**
+ * Empty finalizer as no clean up needed here.
+ */
+ public void finalize() {
+ }
+
+/* The Delegated Graphics2D Methods */
+
+ /**
+ * Strokes the outline of a Shape using the settings of the current
+ * graphics state. The rendering attributes applied include the
+ * clip, transform, paint or color, composite and stroke attributes.
+ * @param s The shape to be drawn.
+ * @see #setStroke
+ * @see #setPaint
+ * @see java.awt.Graphics#setColor
+ * @see #transform
+ * @see #setTransform
+ * @see #clip
+ * @see #setClip
+ * @see #setComposite
+ */
+ public void draw(Shape s) {
+ addStrokeShape(s);
+ mPrintMetrics.draw(this);
+ }
+
+
+ /**
+ * Draws an image, applying a transform from image space into user space
+ * before drawing.
+ * The transformation from user space into device space is done with
+ * the current transform in the Graphics2D.
+ * The given transformation is applied to the image before the
+ * transform attribute in the Graphics2D state is applied.
+ * The rendering attributes applied include the clip, transform,
+ * and composite attributes. Note that the result is
+ * undefined, if the given transform is noninvertible.
+ * @param img The image to be drawn.
+ * @param xform The transformation from image space into user space.
+ * @param obs The image observer to be notified as more of the image
+ * is converted.
+ * @see #transform
+ * @see #setTransform
+ * @see #setComposite
+ * @see #clip
+ * @see #setClip
+ */
+ public boolean drawImage(Image img,
+ AffineTransform xform,
+ ImageObserver obs) {
+
+ if (img == null) {
+ return true;
+ }
+
+ mDrawingArea.addInfinite();
+ mPrintMetrics.drawImage(this, img);
+
+ return mGraphics.drawImage(img, xform, obs);
+
+
+// if (mDrawingArea[0] != null) {
+// Rectangle2D.Double bbox = new Rectangle2D.Double();
+// Point2D leftTop = new Point2D.Double(0, 0);
+// Point2D rightBottom = new Point2D.Double(getImageWidth(img),
+// getImageHeight(img));
+
+// xform.transform(leftTop, leftTop);
+// xform.transform(rightBottom, rightBottom);
+
+// bbox.setBoundsFromDiagonal(leftTop, rightBottom);
+// addDrawingRect(bbox);
+
+// }
+ }
+
+
+ /**
+ * Draws a BufferedImage that is filtered with a BufferedImageOp.
+ * The rendering attributes applied include the clip, transform
+ * and composite attributes. This is equivalent to:
+ *
+ * img1 = op.filter(img, null); + * drawImage(img1, new AffineTransform(1f,0f,0f,1f,x,y), null); + *+ * @param op The filter to be applied to the image before drawing. + * @param img The BufferedImage to be drawn. + * @param x,y The location in user space where the image should be drawn. + * @see #transform + * @see #setTransform + * @see #setComposite + * @see #clip + * @see #setClip + */ + public void drawImage(BufferedImage img, + BufferedImageOp op, + int x, + int y) { + + if (img == null) { + return; + } + + mPrintMetrics.drawImage(this, (RenderedImage) img); + mDrawingArea.addInfinite(); + } + + + /** + * Draws a string of text. + * The rendering attributes applied include the clip, transform, + * paint or color, font and composite attributes. + * @param s The string to be drawn. + * @param x,y The coordinates where the string should be drawn. + * @see #setPaint + * @see java.awt.Graphics#setColor + * @see java.awt.Graphics#setFont + * @see #transform + * @see #setTransform + * @see #setComposite + * @see #clip + * @see #setClip + */ + public void drawString(String str, + float x, + float y) { + + if (str.length() == 0) { + return; + } + /* Logical bounds close enough and is used for GlyphVector */ + FontRenderContext frc = getFontRenderContext(); + Rectangle2D bbox = getFont().getStringBounds(str, frc); + addDrawingRect(bbox, x, y); + mPrintMetrics.drawText(this); + } + + /** + * Draws a GlyphVector. + * The rendering attributes applied include the clip, transform, + * paint or color, and composite attributes. The GlyphVector specifies + * individual glyphs from a Font. + * @param g The GlyphVector to be drawn. + * @param x,y The coordinates where the glyphs should be drawn. + * @see #setPaint + * @see java.awt.Graphics#setColor + * @see #transform + * @see #setTransform + * @see #setComposite + * @see #clip + * @see #setClip + */ + public void drawGlyphVector(GlyphVector g, + float x, + float y) { + + Rectangle2D bbox = g.getLogicalBounds(); + addDrawingRect(bbox, x, y); + mPrintMetrics.drawText(this); + + } + + /** + * Fills the interior of a Shape using the settings of the current + * graphics state. The rendering attributes applied include the + * clip, transform, paint or color, and composite. + * @see #setPaint + * @see java.awt.Graphics#setColor + * @see #transform + * @see #setTransform + * @see #setComposite + * @see #clip + * @see #setClip + */ + public void fill(Shape s) { + addDrawingRect(s.getBounds()); + mPrintMetrics.fill(this); + + } + + + /** + * Checks to see if the outline of a Shape intersects the specified + * Rectangle in device space. + * The rendering attributes taken into account include the + * clip, transform, and stroke attributes. + * @param rect The area in device space to check for a hit. + * @param s The shape to check for a hit. + * @param onStroke Flag to choose between testing the stroked or + * the filled shape. + * @return True if there is a hit, false otherwise. + * @see #setStroke + * @see #fill + * @see #draw + * @see #transform + * @see #setTransform + * @see #clip + * @see #setClip + */ + public boolean hit(Rectangle rect, + Shape s, + boolean onStroke) { + + return mGraphics.hit(rect, s, onStroke); + } + + /** + * Sets the Composite in the current graphics state. Composite is used + * in all drawing methods such as drawImage, drawString, draw, + * and fill. It specifies how new pixels are to be combined with + * the existing pixels on the graphics device in the rendering process. + * @param comp The Composite object to be used for drawing. + * @see java.awt.Graphics#setXORMode + * @see java.awt.Graphics#setPaintMode + * @see AlphaComposite + */ + public void setComposite(Composite comp) { + mGraphics.setComposite(comp); + } + + + /** + * Sets the Paint in the current graphics state. + * @param paint The Paint object to be used to generate color in + * the rendering process. + * @see java.awt.Graphics#setColor + * @see GradientPaint + * @see TexturePaint + */ + public void setPaint(Paint paint) { + mGraphics.setPaint(paint); + } + + /** + * Sets the Stroke in the current graphics state. + * @param s The Stroke object to be used to stroke a Shape in + * the rendering process. + * @see BasicStroke + */ + public void setStroke(Stroke s) { + mGraphics.setStroke(s); + } + + /** + * Sets the preferences for the rendering algorithms. + * Hint categories include controls for rendering quality and + * overall time/quality trade-off in the rendering process. + * @param hintCategory The category of hint to be set. + * @param hintValue The value indicating preferences for the specified + * hint category. + * @see RenderingHints + */ + public void setRenderingHint(Key hintCategory, Object hintValue) { + mGraphics.setRenderingHint(hintCategory, hintValue); + } + + /** + * Returns the preferences for the rendering algorithms. + * @param hintCategory The category of hint to be set. + * @return The preferences for rendering algorithms. + * @see RenderingHings + */ + public Object getRenderingHint(Key hintCategory) { + return mGraphics.getRenderingHint(hintCategory); + } + + /** + * Sets the preferences for the rendering algorithms. + * Hint categories include controls for rendering quality and + * overall time/quality trade-off in the rendering process. + * @param hints The rendering hints to be set + * @see RenderingHints + */ + public void setRenderingHints(Map hints) { + mGraphics.setRenderingHints(hints); + } + + /** + * Adds a number of preferences for the rendering algorithms. + * Hint categories include controls for rendering quality and + * overall time/quality trade-off in the rendering process. + * @param hints The rendering hints to be set + * @see RenderingHints + */ + public void addRenderingHints(Map hints) { + mGraphics.addRenderingHints(hints); + } + + /** + * Gets the preferences for the rendering algorithms. + * Hint categories include controls for rendering quality and + * overall time/quality trade-off in the rendering process. + * @see RenderingHints + */ + public RenderingHints getRenderingHints() { + return mGraphics.getRenderingHints(); + } + + /** + * Composes a Transform object with the transform in this + * Graphics2D according to the rule last-specified-first-applied. + * If the currrent transform is Cx, the result of composition + * with Tx is a new transform Cx'. Cx' becomes the current + * transform for this Graphics2D. + * Transforming a point p by the updated transform Cx' is + * equivalent to first transforming p by Tx and then transforming + * the result by the original transform Cx. In other words, + * Cx'(p) = Cx(Tx(p)). + * A copy of the Tx is made, if necessary, so further + * modifications to Tx do not affect rendering. + * @param Tx The Transform object to be composed with the current + * transform. + * @see #setTransform + * @see TransformChain + * @see AffineTransform + */ + public void transform(AffineTransform Tx) { + mGraphics.transform(Tx); + } + + /** + * Sets the Transform in the current graphics state. + * @param Tx The Transform object to be used in the rendering process. + * @see #transform + * @see TransformChain + * @see AffineTransform + */ + public void setTransform(AffineTransform Tx) { + mGraphics.setTransform(Tx); + } + + /** + * Returns the current Transform in the Graphics2D state. + * @see #transform + * @see #setTransform + */ + public AffineTransform getTransform() { + return mGraphics.getTransform(); + } + + /** + * Returns the current Paint in the Graphics2D state. + * @see #setPaint + * @see java.awt.Graphics#setColor + */ + public Paint getPaint() { + return mGraphics.getPaint(); + } + + /** + * Returns the current Composite in the Graphics2D state. + * @see #setComposite + */ + public Composite getComposite() { + return mGraphics.getComposite(); + } + + /** + * Sets the background color in this context used for clearing a region. + * When Graphics2D is constructed for a component, the backgroung color is + * inherited from the component. Setting the background color in the + * Graphics2D context only affects the subsequent clearRect() calls and + * not the background color of the component. To change the background + * of the component, use appropriate methods of the component. + * @param color The background color that should be used in + * subsequent calls to clearRect(). + * @see getBackground + * @see Graphics.clearRect() + */ + public void setBackground(Color color) { + mGraphics.setBackground(color); + } + + /** + * Returns the background color used for clearing a region. + * @see setBackground + */ + public Color getBackground() { + return mGraphics.getBackground(); + } + + /** + * Returns the current Stroke in the Graphics2D state. + * @see setStroke + */ + public Stroke getStroke() { + return mGraphics.getStroke(); + } + + /** + * Intersects the current clip with the interior of the specified Shape + * and sets the current clip to the resulting intersection. + * The indicated shape is transformed with the current transform in the + * Graphics2D state before being intersected with the current clip. + * This method is used to make the current clip smaller. + * To make the clip larger, use any setClip method. + * @param s The Shape to be intersected with the current clip. + */ + public void clip(Shape s) { + mGraphics.clip(s); + } + + /** + * Return true if the Rectangle
rect
+ * intersects the area into which the application
+ * has drawn.
+ */
+ public boolean hitsDrawingArea(Rectangle rect) {
+
+ return mDrawingArea.intersects((float) rect.getMinY(),
+ (float) rect.getMaxY());
+ }
+
+ /**
+ * Return the object holding the summary of the
+ * drawing done by the printing application.
+ */
+ public PeekMetrics getMetrics() {
+ return mPrintMetrics;
+ }
+
+ /* Support Routines for Calculating the Drawing Area */
+
+ /**
+ * Shift the rectangle 'rect' to the position ('x', 'y')
+ * and add the resulting rectangle to the area representing
+ * the part of the page which is drawn into.
+ */
+ private void addDrawingRect(Rectangle2D rect, float x, float y) {
+
+ addDrawingRect((float) (rect.getX() + x),
+ (float) (rect.getY() + y),
+ (float) rect.getWidth(),
+ (float) rect.getHeight());
+
+ }
+
+ private void addDrawingRect(float x, float y, float width, float height) {
+
+ Rectangle2D.Float bbox = new Rectangle2D.Float(x, y, width, height);
+ addDrawingRect(bbox);
+ }
+
+ /**
+ * Add the rectangle 'rect' to the area representing
+ * the part of the page which is drawn into.
+ */
+ private void addDrawingRect(Rectangle2D rect) {
+
+ /* For testing purposes the following line can be uncommented.
+ When uncommented it causes the entire page to be rasterized
+ thus eliminating errors caused by a faulty bounding box
+ calculation.
+ */
+ //mDrawingArea.addInfinite();
+
+
+
+ AffineTransform matrix = getTransform();
+
+ Shape transShape = matrix.createTransformedShape(rect);
+
+ Rectangle2D transRect = transShape.getBounds2D();
+
+ mDrawingArea.add((float) transRect.getMinY(),
+ (float) transRect.getMaxY());
+
+
+ }
+
+ /**
+ * Add the stroked shape to the area representing
+ * the part of the page which is drawn into.
+ */
+ private void addStrokeShape(Shape s) {
+ Shape transShape = getStroke().createStrokedShape(s);
+ addDrawingRect(transShape.getBounds2D());
+ }
+
+ /* Image Observer */
+
+ /**
+ * Notify this object when the height or width become available
+ * for an image.
+ */
+ public synchronized boolean imageUpdate(Image img, int infoFlags,
+ int x, int y,
+ int width, int height) {
+
+ boolean gotInfo = false;
+
+ if((infoFlags & (WIDTH | HEIGHT)) != 0) {
+ gotInfo = true;
+ notify();
+ }
+
+ return gotInfo;
+ }
+
+ private synchronized int getImageWidth(Image img) {
+
+ /* Wait for the width the image to
+ * become available.
+ */
+ while (img.getWidth(this) == -1) {
+ try {
+ wait();
+ } catch (InterruptedException e) {
+ }
+ }
+
+
+ return img.getWidth(this);
+ }
+
+ private synchronized int getImageHeight(Image img) {
+
+ /* Wait for the height the image to
+ * become available.
+ */
+ while (img.getHeight(this) == -1) {
+ try {
+ wait();
+ } catch (InterruptedException e) {
+ }
+ }
+
+
+ return img.getHeight(this);
+ }
+
+ /**
+ * This private class does not return from its constructor
+ * until 'img's width and height are available.
+ */
+ protected class ImageWaiter implements ImageObserver {
+
+ private int mWidth;
+ private int mHeight;
+ private boolean badImage = false;
+
+ ImageWaiter(Image img) {
+ waitForDimensions(img);
+ }
+
+ public int getWidth() {
+ return mWidth;
+ }
+
+ public int getHeight() {
+ return mHeight;
+ }
+
+ synchronized private void waitForDimensions(Image img) {
+ mHeight = img.getHeight(this);
+ mWidth = img.getWidth(this);
+ while (!badImage && (mWidth < 0 || mHeight < 0)) {
+ try {
+ Thread.sleep(50);
+ } catch(InterruptedException e) {
+ // do nothing.
+ }
+ mHeight = img.getHeight(this);
+ mWidth = img.getWidth(this);
+ }
+ if (badImage) {
+ mHeight = 0;
+ mWidth = 0;
+ }
+ }
+
+ synchronized public boolean imageUpdate(Image image, int flags,
+ int x, int y, int w, int h) {
+
+ boolean dontCallMeAgain = (flags & (HEIGHT | ABORT | ERROR)) != 0;
+ badImage = (flags & (ABORT | ERROR)) != 0;
+
+ return dontCallMeAgain;
+ }
+
+ }
+}