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ProxyGraphics2D.java
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Java Source
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1998-03-20
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/*
* @(#)ProxyGraphics2D.java 1.2 98/03/18
*
* Copyright 1998 by Sun Microsystems, Inc.,
* 901 San Antonio Road, Palo Alto, California, 94303, U.S.A.
* All rights reserved.
*
* This software is the confidential and proprietary information
* of Sun Microsystems, Inc. ("Confidential Information"). You
* shall not disclose such Confidential Information and shall use
* it only in accordance with the terms of the license agreement
* you entered into with Sun.
*/
package java.awt.print;
import java.util.Hashtable;
import java.awt.Color;
import java.awt.Composite;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.GraphicsConfiguration;
import java.awt.Image;
import java.awt.Paint;
import java.awt.Rectangle;
import java.awt.Shape;
import java.awt.Stroke;
import java.awt.font.GlyphSet;
import java.awt.font.StyledString;
import java.awt.font.TextLayout;
import java.awt.geom.AffineTransform;
import java.awt.geom.Rectangle2D;
import java.awt.image.BufferedImage;
import java.awt.image.BufferedImageOp;
import java.awt.image.ImageObserver;
import java.awt.image.RenderedImage;
import java.awt.image.renderable.RenderableImage;
public class ProxyGraphics2D extends Graphics2D implements PageContext {
Graphics2D mGraphics;
PageContext mPageContext;
/**
* The new ProxyGraphics2D will forward all graphics
* calls to 'graphics'.
*/
public ProxyGraphics2D(Graphics2D graphics, PageContext pageContext) {
mGraphics = graphics;
mPageContext = pageContext;
}
/**
* Return the Graphics2D object that does the drawing
* for this instance.
*/
public Graphics2D getDelegate() {
return mGraphics;
}
/**
* Set the Graphics2D instance which will do the
* drawing.
*/
public void setDelegate(Graphics2D graphics) {
mGraphics = graphics;
}
/**
* Return the format of the page being drawn.
*/
public PageFormat getPageFormat() {
return mPageContext.getPageFormat();
}
/**
* Get the object responsible for painting the page.
*/
public Printable getPagePainter() {
return mPageContext.getPagePainter();
}
/**
* Return the number of the page being drawn.
*/
public int getPageIndex() {
return mPageContext.getPageIndex();
}
/**
* Return the name of the page.
*/
public String getPageName() {
return mPageContext.getPageName();
}
/** Set the name of the page.
*
public void setPageName(String pageName) {
mPageName = pageName;
}
public void
/**
* Returns the device configuration associated with this Graphics2D.
*/
public GraphicsConfiguration getDeviceConfiguration() {
// Need to do something here like copy the delegated config
// and then stamp it as a pritner config. For now we delegate
// but that's wrong.
return mGraphics.getDeviceConfiguration();
}
/* The Delegated Graphics Methods */
/**
* Creates a new <code>Graphics</code> object that is
* a copy of this <code>Graphics</code> object.
* @return a new graphics context that is a copy of
* this graphics context.
* @since JDK1.0
*/
public Graphics create() {
return mGraphics.create();
}
/**
* Translates the origin of the graphics context to the point
* (<i>x</i>, <i>y</i>) in the current coordinate system.
* Modifies this graphics context so that its new origin corresponds
* to the point (<i>x</i>, <i>y</i>) 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 <i>x</i> coordinate.
* @param y the <i>y</i> 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:
* <pre>
* [ 1 0 tx ]
* [ 0 1 ty ]
* [ 0 0 1 ]
* </pre>
*/
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:
* <pre>
* [ cos(theta) -sin(theta) 0 ]
* [ sin(theta) cos(theta) 0 ]
* [ 0 0 1 ]
* </pre>
* 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:
* <pre>
* translate(x, y);
* rotate(theta);
* translate(-x, -y);
* </pre>
* 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:
* <pre>
* [ sx 0 0 ]
* [ 0 sy 0 ]
* [ 0 0 1 ]
* </pre>
*/
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:
* <pre>
* [ 1 shx 0 ]
* [ shy 1 0 ]
* [ 0 0 1 ]
* </pre>
* @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.
* <p>
* When drawing operations are performed, pixels which are the
* current color are changed to the specified color, and vice versa.
* <p>
* 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);
}
/**
* 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 <i>x</i> coordinate of the new clip rectangle.
* @param y the <i>y</i> 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 <code>Shape</code> 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 <code>Shape</code>
* interface can be used to set the clip. The only
* <code>Shape</code> objects which are guaranteed to be
* supported are <code>Shape</code> objects which are
* obtained via the <code>getClip</code> method and via
* <code>Rectangle</code> 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
* <code>dx</code> and <code>dy</code>. From the point specified
* by <code>x</code> and <code>y</code>, 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
* <code>dx</code> or <code>dy</code>.
* If a portion of the source rectangle lies outside the bounds
* of the component, or is obscured by another window or component,
* <code>copyArea</code> will be unable to copy the associated
* pixels. The area that is omitted can be refreshed by calling
* the component's <code>paint</code> method.
* @param x the <i>x</i> coordinate of the source rectangle.
* @param y the <i>y</i> 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) {
mGraphics.copyArea(x, y, width, height, dx, dy);
}
/**
* Draws a line, using the current color, between the points
* <code>(x1, y1)</code> and <code>(x2, y2)</code>
* in this graphics context's coordinate system.
* @param x1 the first point's <i>x</i> coordinate.
* @param y1 the first point's <i>y</i> coordinate.
* @param x2 the second point's <i>x</i> coordinate.
* @param y2 the second point's <i>y</i> coordinate.
* @since JDK1.0
*/
public void drawLine(int x1, int y1, int x2, int y2) {
mGraphics.drawLine(x1, y1, x2, y2);
}
/**
* Fills the specified rectangle.
* The left and right edges of the rectangle are at
* <code>x</code> and <code>x + width - 1</code>.
* The top and bottom edges are at
* <code>y</code> and <code>y + height - 1</code>.
* The resulting rectangle covers an area
* <code>width</code> pixels wide by
* <code>height</code> pixels tall.
* The rectangle is filled using the graphics context's current color.
* @param x the <i>x</i> coordinate
* of the rectangle to be filled.
* @param y the <i>y</i> 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) {
mGraphics.fillRect(x, y, width, height);
}
/**
* 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.
* <p>
* Beginning with Java 1.1, the background color
* of offscreen images may be system dependent. Applications should
* use <code>setColor</code> followed by <code>fillRect</code> to
* ensure that an offscreen image is cleared to a specific color.
* @param x the <i>x</i> coordinate of the rectangle to clear.
* @param y the <i>y</i> 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) {
mGraphics.clearRect(x, y, width, height);
}
/**
* Draws an outlined round-cornered rectangle using this graphics
* context's current color. The left and right edges of the rectangle
* are at <code>x</code> and <code>x + width</code>,
* respectively. The top and bottom edges of the rectangle are at
* <code>y</code> and <code>y + height</code>.
* @param x the <i>x</i> coordinate of the rectangle to be drawn.
* @param y the <i>y</i> 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) {
mGraphics.drawRoundRect(x, y, width, height, arcWidth, arcHeight);
}
/**
* Fills the specified rounded corner rectangle with the current color.
* The left and right edges of the rectangle
* are at <code>x</code> and <code>x + width - 1</code>,
* respectively. The top and bottom edges of the rectangle are at
* <code>y</code> and <code>y + height - 1</code>.
* @param x the <i>x</i> coordinate of the rectangle to be filled.
* @param y the <i>y</i> 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) {
mGraphics.fillRoundRect(x, y, width, height, arcWidth, arcHeight);
}
/**
* Draws the outline of an oval.
* The result is a circle or ellipse that fits within the
* rectangle specified by the <code>x</code>, <code>y</code>,
* <code>width</code>, and <code>height</code> arguments.
* <p>
* The oval covers an area that is
* <code>width + 1</code> pixels wide
* and <code>height + 1<code> pixels tall.
* @param x the <i>x</i> coordinate of the upper left
* corner of the oval to be drawn.
* @param y the <i>y</i> 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) {
mGraphics.drawOval(x, y, width, height);
}
/**
* Fills an oval bounded by the specified rectangle with the
* current color.
* @param x the <i>x</i> coordinate of the upper left corner
* of the oval to be filled.
* @param y the <i>y</i> 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) {
mGraphics.fillOval(x, y, width, height);
}
/**
* Draws the outline of a circular or elliptical arc
* covering the specified rectangle.
* <p>
* The resulting arc begins at <code>startAngle</code> and extends
* for <code>arcAngle</code> degrees, using the current color.
* Angles are interpreted such that 0 degrees
* is at the 3 o'clock position.
* A positive value indicates a counter-clockwise rotation
* while a negative value indicates a clockwise rotation.
* <p>
* The center of the arc is the center of the rectangle whose origin
* is (<i>x</i>, <i>y</i>) and whose size is specified by the
* <code>width</code> and <code>height</code> arguments.
* <p>
* The resulting arc covers an area
* <code>width + 1</code> pixels wide
* by <code>height + 1</code> pixels tall.
* @param x the <i>x</i> coordinate of the
* upper-left corner of the arc to be drawn.
* @param y the <i>y</i> 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) {
mGraphics.drawArc(x, y, width, height, startAngle, arcAngle);
}
/**
* Fills a circular or elliptical arc covering the specified rectangle.
* <p>
* The resulting arc begins at <code>startAngle</code> and extends
* for <code>arcAngle</code> 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.
* <p>
* The center of the arc is the center of the rectangle whose origin
* is (<i>x</i>, <i>y</i>) and whose size is specified by the
* <code>width</code> and <code>height</code> arguments.
* <p>
* The resulting arc covers an area
* <code>width + 1</code> pixels wide
* by <code>height + 1</code> pixels tall.
* @param x the <i>x</i> coordinate of the
* upper-left corner of the arc to be filled.
* @param y the <i>y</i> 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) {
mGraphics.fillArc(x, y, width, height, startAngle, arcAngle);
}
/**
* Draws a sequence of connected lines defined by
* arrays of <i>x</i> and <i>y</i> coordinates.
* Each pair of (<i>x</i>, <i>y</i>) coordinates defines a point.
* The figure is not closed if the first point
* differs from the last point.
* @param xPoints an array of <i>x</i> points
* @param yPoints an array of <i>y</i> 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) {
mGraphics.drawPolyline(xPoints, yPoints, nPoints);
}
/**
* Draws a closed polygon defined by
* arrays of <i>x</i> and <i>y</i> coordinates.
* Each pair of (<i>x</i>, <i>y</i>) coordinates defines a point.
* <p>
* This method draws the polygon defined by <code>nPoint</code> line
* segments, where the first <code>nPoint - 1</code>
* line segments are line segments from
* <code>(xPoints[i - 1], yPoints[i - 1])</code>
* to <code>(xPoints[i], yPoints[i])</code>, for
* 1 ≤ <i>i</i> ≤ <code>nPoints</code>.
* 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 <code>x</code> coordinates.
* @param yPoints a an array of <code>y</code> 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) {
mGraphics.drawPolygon(xPoints, yPoints, nPoints);
}
/**
* Fills a closed polygon defined by
* arrays of <i>x</i> and <i>y</i> coordinates.
* <p>
* This method draws the polygon defined by <code>nPoint</code> line
* segments, where the first <code>nPoint - 1</code>
* line segments are line segments from
* <code>(xPoints[i - 1], yPoints[i - 1])</code>
* to <code>(xPoints[i], yPoints[i])</code>, for
* 1 ≤ <i>i</i> ≤ <code>nPoints</code>.
* The figure is automatically closed by drawing a line connecting
* the final point to the first point, if those points are different.
* <p>
* 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 <code>x</code> coordinates.
* @param yPoints a an array of <code>y</code> 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) {
mGraphics.fillPolygon(xPoints, yPoints, nPoints);
}
/**
* 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 (<i>x</i>, <i>y</i>) in this
* graphics context's coordinate system.
* @param str the string to be drawn.
* @param x the <i>x</i> coordinate.
* @param y the <i>y</i> coordinate.
* @see java.awt.Graphics#drawBytes
* @see java.awt.Graphics#drawChars
* @since JDK1.0
*/
public void drawString(String str, int x, int y) {
/* Map this call to the StyleString draw as we can
* ask the StyledString for its bounds and see if
* that falls within the current clip. If hitString()
* were implemented we could use it here.
*/
drawString(new StyledString(str, getFont()), x, y);
}
/**
* Draws as much of the specified image as is currently available.
* The image is drawn with its top-left corner at
* (<i>x</i>, <i>y</i>) in this graphics context's coordinate
* space. Transparent pixels in the image do not affect whatever
* pixels are already there.
* <p>
* 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.
* <p>
* If the image has not yet been completely loaded, then
* <code>drawImage</code> returns <code>false</code>. 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 <i>x</i> coordinate.
* @param y the <i>y</i> 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) {
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.
* <p>
* 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.
* <p>
* 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
* <code>drawImage</code> returns <code>false</code>. As more of
* the image becomes available, the process that draws the image notifies
* the image observer by calling its <code>imageUpdate</code> method.
* <p>
* 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 <i>x</i> coordinate.
* @param y the <i>y</i> 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) {
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
* (<i>x</i>, <i>y</i>) in this graphics context's coordinate
* space. Transparent pixels are drawn in the specified
* background color.
* <p>
* 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.
* <p>
* 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.
* <p>
* If the image has not yet been completely loaded, then
* <code>drawImage</code> returns <code>false</code>. 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 <i>x</i> coordinate.
* @param y the <i>y</i> 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) {
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.
* <p>
* 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.
* <p>
* 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
* <code>drawImage</code> returns <code>false</code>. As more of
* the image becomes available, the process that draws the image notifies
* the specified image observer.
* <p>
* 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 <i>x</i> coordinate.
* @param y the <i>y</i> 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) {
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.
* <p>
* 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
* <code>drawImage</code> returns <code>false</code>. As more of
* the image becomes available, the process that draws the image notifies
* the specified image observer.
* <p>
* 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 <i>x</i> coordinate of the first corner of the
* destination rectangle.
* @param dy1 the <i>y</i> coordinate of the first corner of the
* destination rectangle.
* @param dx2 the <i>x</i> coordinate of the second corner of the
* destination rectangle.
* @param dy2 the <i>y</i> coordinate of the second corner of the
* destination rectangle.
* @param sx1 the <i>x</i> coordinate of the first corner of the
* source rectangle.
* @param sy1 the <i>y</i> coordinate of the first corner of the
* source rectangle.
* @param sx2 the <i>x</i> coordinate of the second corner of the
* source rectangle.
* @param sy2 the <i>y</i> 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) {
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.
* <p>
* 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.
* <p>
* 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
* <code>drawImage</code> returns <code>false</code>. As more of
* the image becomes available, the process that draws the image notifies
* the specified image observer.
* <p>
* 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 <i>x</i> coordinate of the first corner of the
* destination rectangle.
* @param dy1 the <i>y</i> coordinate of the first corner of the
* destination rectangle.
* @param dx2 the <i>x</i> coordinate of the second corner of the
* destination rectangle.
* @param dy2 the <i>y</i> coordinate of the second corner of the
* destination rectangle.
* @param sx1 the <i>x</i> coordinate of the first corner of the
* source rectangle.
* @param sy1 the <i>y</i> coordinate of the first corner of the
* source rectangle.
* @param sx2 the <i>x</i> coordinate of the second corner of the
* source rectangle.
* @param sy2 the <i>y</i> 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) {
return mGraphics.drawImage(img, dx1, 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) {
mGraphics.drawRenderedImage(img, xform);
}
public void drawRenderableImage(RenderableImage img,
AffineTransform xfrom,
Hashtable renderHints,
Hashtable renderHintsObserved) {
mGraphics.drawRenderableImage(img, xfrom, renderHints,
renderHintsObserved);
}
/**
* Disposes of this graphics context and releases
* any system resources that it is using.
* A <code>Graphics</code> object cannot be used after
* <code>dispose</code>has been called.
* <p>
* When a Java program runs, a large number of <code>Graphics</code>
* 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.
* <p>
* Graphics objects which are provided as arguments to the
* <code>paint</code> and <code>update</code> methods
* of components are automatically released by the system when
* those methods return. For efficiency, programmers should
* call <code>dispose</code> when finished using
* a <code>Graphics</code> object only if it was created
* directly from a component or another <code>Graphics</code> 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();
}
/* 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) {
mGraphics.draw(s);
}
/**
* 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 void drawImage(Image img,
AffineTransform xform,
ImageObserver obs) {
mGraphics.drawImage(img, xform, obs);
}
/**
* Draws a BufferedImage that is filtered with a BufferedImageOp.
* The rendering attributes applied include the clip, transform
* and composite attributes. This is equivalent to:
* <pre>
* img1 = op.filter(img, null);
* drawImage(img1, new AffineTransform(1f,0f,0f,1f,x,y), null);
* </pre>
* @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) {
mGraphics.drawImage(img, op, x, y);
}
/**
* 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 s,
float x,
float y) {
/* Map this call to the StyleString draw as we can
* ask the StyledString for its bounds and see if
* that falls within the current clip. If hitString()
* were implemented we could use it here.
*/
drawString(new StyledString(s, getFont()), x, y);
}
/**
* Draws a StyledString.
* The rendering attributes applied include the clip, transform,
* paint or color, and composite attributes. A Font is associated
* with each character in the StyledString.
* @param s The StyledString to be drawn.
* @param x,y The coordinates where the StyledString should be drawn.
* @see #setPaint
* @see java.awt.Graphics#setColor
* @see #transform
* @see #setTransform
* @see #setComposite
* @see #clip
* @see #setClip
* @see Font
*/
public void drawString(StyledString s,
float x,
float y) {
/* If the bounding rectangle of the strings intersects
* the clip then we'll draw it. This improves performance
* by a factor of four.
*/
Rectangle2D clip = getClipBounds();
Rectangle2D stringBounds = s.getBounds2D();
stringBounds.setRect(x, y - s.getAscent(),
stringBounds.getWidth(),
stringBounds.getHeight());
if (clip.intersects(stringBounds)) {
mGraphics.drawString(s, x, y);
}
}
/**
* Draws a GlyphSet.
* The rendering attributes applied include the clip, transform,
* paint or color, and composite attributes. The glyphSet specifies
* individual glyphs from a Font.
* @param g The GlyphSet 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 drawString(GlyphSet g,
float x,
float y) {
mGraphics.drawString(g, x, y);
}
public void drawString(TextLayout text, float x, float y) {
mGraphics.drawString(text, x, y);
}
/**
* 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) {
mGraphics.fill(s);
}
/**
* 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);
}
/**
* Checks to see if the StyledString intersects the specified Rectangle
* in device space.
* The rendering attributes taken into account include the clip
* and transform.
* @param rect The area in device space to check for a hit.
* @param s The StyledString to check for a hit.
* @param x,y The coordinates where the StyledString should be
* hit tested.
* @return True if there is a hit, false otherwise.
* @see #drawString(StyledString, float, float)
* @see #transform
* @see #setTransform
* @see #clip
* @see #setClip
*/
public boolean hitString(Rectangle rect,
StyledString s,
float x,
float y) {
return mGraphics.hitString(rect, s, x, y);
}
/**
* 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. Possible values
* are ANTIALIASING and RENDERING.
* @param hintValue The value indicating preferences for the specified
* hint category. Possible values for the ANTIALIASING category are
* ANTIALIAS_ON, ANTIALIAS_OFF, ANTIALIAS_DEFAULT. Possible values for
* the RENDERING hint are RENDER_SPEED, RENDER_QUALITY, RENDER_DEFAULT.
* @see #ANTIALIASING
* @see #RENDERING
* @see #ANTIALIAS_ON
* @see #ANTIALIAS_OFF
* @see #ANTIALIAS_DEFAULT
* @see #RENDER_SPEED
* @see #RENDER_QUALITY
* @see #RENDER_DEFAULT
*/
public void setRenderingHints(int hintCategory, int hintValue) {
mGraphics.setRenderingHints(hintCategory, hintValue);
}
/**
* Returns the preferences for the rendering algorithms.
* @param hintCategory The category of hint to be set. Possible values
* are ANTIALIASING and RENDERING.
* @return The preferences for rendering algorithms. Possible values for
* the ANTIALIASING category are ANTIALIAS_ON, ANTIALIAS_OFF,
* ANTIALIAS_DEFAULT. Possible values for the RENDERING hint are
* RENDER_SPEED, RENDER_QUALITY, RENDER_DEFAULT.
* @see #ANTIALIASING
* @see #RENDERING
* @see #ANTIALIAS_ON
* @see #ANTIALIAS_OFF
* @see #ANTIALIAS_DEFAULT
* @see #RENDER_SPEED
* @see #RENDER_QUALITY
* @see #RENDER_DEFAULT
*/
public int getRenderingHints(int hintCategory) {
return mGraphics.getRenderingHints(hintCategory);
}
/**
* 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);
}
}