gnu.java.awt.peer.qt

Class QtGraphics

Known Direct Subclasses:
QtComponentGraphics, QtImageGraphics

public abstract class QtGraphics
extends Graphics2D

QtGraphics is an abstract implementation of Graphics2D over a QPainter object. This is to be subclassed for different drawing contexts, which may have different requirements.

Field Summary

protected Color
bgcolor
protected Shape
clip
protected Color
color
protected Composite
composite
protected double
currentAlpha
protected Paint
currentPaint
protected Stroke
currentStroke
protected Font
font
protected Shape
initialClip
protected long
nativeObject
Native QPainter pointer.
protected boolean
nativeStroking
protected RenderingHints
renderingHints
protected AffineTransform
xform

Method Summary

void
addRenderingHints(Map<K,V> hints)
void
clearRect(int x, int y, int width, int height)
void
clip(Shape s)
Intersects the current clip with the shape
void
clipRect(int x, int y, int width, int height)
abstract void
copyArea(int x, int y, int width, int height, int dx, int dy)
abstract Graphics
create()
Context-sensitive methods are declared abstract.
void
delete()
void
dispose()
void
draw(Shape s)
Draws an outline around a shape using the current stroke and paint.
void
draw3DRect(int x, int y, int width, int height, boolean raised)
void
drawArc(int x, int y, int width, int height, int arcStart, int arcAngle)
void
drawGlyphVector(GlyphVector v, float x, float y)
Draws a glyph vector at the specified location.
boolean
drawImage(Image image, int dx1, int dy1, int dx2, int dy2, int sx1, int sy1, int sx2, int sy2, Color bgcolor, ImageObserver observer)
boolean
drawImage(Image image, int dx1, int dy1, int dx2, int dy2, int sx1, int sy1, int sx2, int sy2, ImageObserver observer)
boolean
drawImage(Image image, int x, int y, int width, int height, Color bgcolor, ImageObserver observer)
boolean
drawImage(Image image, int x, int y, int width, int height, ImageObserver observer)
boolean
drawImage(Image image, int x, int y, Color bgcolor, ImageObserver observer)
boolean
drawImage(Image image, int x, int y, ImageObserver observer)
boolean
drawImage(Image image, AffineTransform Tx, ImageObserver obs)
void
drawImage(BufferedImage image, BufferedImageOp op, int x, int y)
void
drawLine(int x1, int y1, int x2, int y2)
void
drawOval(int x, int y, int width, int height)
void
drawPolygon(xPoints[] , yPoints[] , int npoints)
void
drawPolyline(xPoints[] , yPoints[] , int npoints)
void
drawRect(int x, int y, int width, int height)
void
drawRenderableImage(RenderableImage image, AffineTransform xform)
void
drawRenderedImage(RenderedImage image, AffineTransform xform)
void
drawRoundRect(int x, int y, int width, int height, int arcWidth, int arcHeight)
void
drawString(String string, float x, float y)
Draws a string at the specified location, using the current font.
void
drawString(String string, int x, int y)
Draws a string at the specified location, using the current font.
void
drawString(AttributedCharacterIterator ci, float x, float y)
Draws an attributed string at the specified location.
void
drawString(AttributedCharacterIterator ci, int x, int y)
Draws an attributed string at the specified location.
void
fill(Shape s)
Fills the interior of the specified shape using the current paint.
void
fill3DRect(int x, int y, int width, int height, boolean raised)
void
fillArc(int x, int y, int width, int height, int arcStart, int arcAngle)
void
fillOval(int x, int y, int width, int height)
void
fillPolygon(xPoints[] , yPoints[] , int npoints)
void
fillRect(int x, int y, int width, int height)
void
fillRoundRect(int x, int y, int width, int height, int arcWidth, int arcHeight)
Color
getBackground()
Returns the color used by the Graphics.clearRect(int,int,int,int) method.
Shape
getClip()
Rectangle
getClipBounds()
Color
getColor()
Composite
getComposite()
Returns the current compositing rule.
abstract GraphicsConfiguration
getDeviceConfiguration()
Font
getFont()
FontMetrics
getFontMetrics(Font font)
FontRenderContext
getFontRenderContext()
Returns the font render context.
Paint
getPaint()
Returns the current paint.
Object
getRenderingHint(RenderingHints.Key hintKey)
Returns the current value of a rendering hint.
RenderingHints
getRenderingHints()
Returns the current rendering hints.
Stroke
getStroke()
Returns the current stroke.
AffineTransform
getTransform()
Returns the current transform.
boolean
hit(Rectangle rect, Shape s, boolean onStroke)
protected void
initImage(QtImage image)
protected void
initVolatileImage(QtVolatileImage image)
void
rotate(double theta)
void
rotate(double theta, double x, double y)
void
scale(double sx, double sy)
void
setBackground(Color color)
Sets the background color (used by the Graphics.clearRect(int,int,int,int) method).
void
setClip(int x, int y, int width, int height)
void
setClip(Shape clip)
Sets the clip
void
setColor(Color c)
void
setComposite(Composite comp)
Sets the current compositing rule.
void
setFont(Font font)
void
setPaint(Paint p)
Sets the paint to be used for subsequent drawing operations.
void
setPaintMode()
void
setRenderingHint(RenderingHints.Key hintKey, Object hintValue)
Adds or updates a hint in the current rendering hints table.
void
setRenderingHints(Map hints)
Replaces the current rendering hints with the supplied hints.
void
setStroke(Stroke s)
Sets the stroke to be used for subsequent drawing operations.
void
setTransform(AffineTransform Tx)
Sets the current transform.
void
setXORMode(Color color)
protected void
setup()
Set up some generic defaults.
void
shear(double shx, double shy)
void
transform(AffineTransform Tx)
Sets the current transform to a concatenation of transform and the existing transform.
void
translate(double tx, double ty)
void
translate(int x, int y)

Methods inherited from class java.awt.Graphics2D

addRenderingHints, clip, draw, draw3DRect, drawGlyphVector, drawImage, drawImage, drawRenderableImage, drawRenderedImage, drawString, drawString, drawString, drawString, fill, fill3DRect, getBackground, getComposite, getDeviceConfiguration, getFontRenderContext, getPaint, getRenderingHint, getRenderingHints, getStroke, getTransform, hit, rotate, rotate, scale, setBackground, setComposite, setPaint, setRenderingHint, setRenderingHints, setStroke, setTransform, shear, transform, translate, translate

Methods inherited from class java.awt.Graphics

clearRect, clipRect, copyArea, create, create, dispose, draw3DRect, drawArc, drawBytes, drawChars, drawImage, drawImage, drawImage, drawImage, drawImage, drawImage, drawLine, drawOval, drawPolygon, drawPolygon, drawPolyline, drawRect, drawRoundRect, drawString, drawString, fill3DRect, fillArc, fillOval, fillPolygon, fillPolygon, fillRect, fillRoundRect, finalize, getClip, getClipBounds, getClipBounds, getClipRect, getColor, getFont, getFontMetrics, getFontMetrics, hitClip, setClip, setClip, setColor, setFont, setPaintMode, setXORMode, toString, translate

Methods inherited from class java.lang.Object

clone, equals, extends Object> getClass, finalize, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

bgcolor

protected Color bgcolor

clip

protected Shape clip

color

protected Color color

composite

protected Composite composite

currentAlpha

protected double currentAlpha

currentPaint

protected Paint currentPaint

currentStroke

protected Stroke currentStroke

font

protected Font font

initialClip

protected Shape initialClip

nativeObject

protected long nativeObject
Native QPainter pointer.

nativeStroking

protected boolean nativeStroking

renderingHints

protected RenderingHints renderingHints

xform

protected AffineTransform xform

Method Details

addRenderingHints

public void addRenderingHints(Map<K,V> hints)

clearRect

public void clearRect(int x,
                      int y,
                      int width,
                      int height)
Overrides:
clearRect in interface Graphics

clip

public void clip(Shape s)
Intersects the current clip with the shape
Overrides:
clip in interface Graphics2D

clipRect

public void clipRect(int x,
                     int y,
                     int width,
                     int height)
Overrides:
clipRect in interface Graphics

copyArea

public abstract void copyArea(int x,
                              int y,
                              int width,
                              int height,
                              int dx,
                              int dy)
Overrides:
copyArea in interface Graphics

create

public abstract Graphics create()
Context-sensitive methods are declared abstract.
Overrides:
create in interface Graphics

delete

public void delete()

dispose

public void dispose()
Overrides:
dispose in interface Graphics

draw

public void draw(Shape s)
Draws an outline around a shape using the current stroke and paint.
Overrides:
draw in interface Graphics2D
Parameters:

draw3DRect

public void draw3DRect(int x,
                       int y,
                       int width,
                       int height,
                       boolean raised)
Overrides:
draw3DRect in interface Graphics2D

drawArc

public void drawArc(int x,
                    int y,
                    int width,
                    int height,
                    int arcStart,
                    int arcAngle)
Overrides:
drawArc in interface Graphics

drawGlyphVector

public void drawGlyphVector(GlyphVector v,
                            float x,
                            float y)
Draws a glyph vector at the specified location.
Overrides:
drawGlyphVector in interface Graphics2D
Parameters:
x - the x-coordinate.
y - the y-coordinate.

drawImage

public boolean drawImage(Image image,
                         int dx1,
                         int dy1,
                         int dx2,
                         int dy2,
                         int sx1,
                         int sy1,
                         int sx2,
                         int sy2,
                         Color bgcolor,
                         ImageObserver observer)
Overrides:
drawImage in interface Graphics

drawImage

public boolean drawImage(Image image,
                         int dx1,
                         int dy1,
                         int dx2,
                         int dy2,
                         int sx1,
                         int sy1,
                         int sx2,
                         int sy2,
                         ImageObserver observer)
Overrides:
drawImage in interface Graphics

drawImage

public boolean drawImage(Image image,
                         int x,
                         int y,
                         int width,
                         int height,
                         Color bgcolor,
                         ImageObserver observer)
Overrides:
drawImage in interface Graphics

drawImage

public boolean drawImage(Image image,
                         int x,
                         int y,
                         int width,
                         int height,
                         ImageObserver observer)
Overrides:
drawImage in interface Graphics

drawImage

public boolean drawImage(Image image,
                         int x,
                         int y,
                         Color bgcolor,
                         ImageObserver observer)
Overrides:
drawImage in interface Graphics

drawImage

public boolean drawImage(Image image,
                         int x,
                         int y,
                         ImageObserver observer)
Overrides:
drawImage in interface Graphics

drawImage

public boolean drawImage(Image image,
                         AffineTransform Tx,
                         ImageObserver obs)
Overrides:
drawImage in interface Graphics2D

drawImage

public void drawImage(BufferedImage image,
                      BufferedImageOp op,
                      int x,
                      int y)
Overrides:
drawImage in interface Graphics2D

drawLine

public void drawLine(int x1,
                     int y1,
                     int x2,
                     int y2)
Overrides:
drawLine in interface Graphics

drawOval

public void drawOval(int x,
                     int y,
                     int width,
                     int height)
Overrides:
drawOval in interface Graphics

drawPolygon

public void drawPolygon(xPoints[] ,
                        yPoints[] ,
                        int npoints)
Overrides:
drawPolygon in interface Graphics

drawPolyline

public void drawPolyline(xPoints[] ,
                         yPoints[] ,
                         int npoints)
Overrides:
drawPolyline in interface Graphics

drawRect

public void drawRect(int x,
                     int y,
                     int width,
                     int height)
Overrides:
drawRect in interface Graphics

drawRenderableImage

public void drawRenderableImage(RenderableImage image,
                                AffineTransform xform)
Overrides:
drawRenderableImage in interface Graphics2D

drawRenderedImage

public void drawRenderedImage(RenderedImage image,
                              AffineTransform xform)
Overrides:
drawRenderedImage in interface Graphics2D

drawRoundRect

public void drawRoundRect(int x,
                          int y,
                          int width,
                          int height,
                          int arcWidth,
                          int arcHeight)
Overrides:
drawRoundRect in interface Graphics

drawString

public void drawString(String string,
                       float x,
                       float y)
Draws a string at the specified location, using the current font.
Overrides:
drawString in interface Graphics2D
Parameters:
x - the x-coordinate.
y - the y-coordinate.

drawString

public void drawString(String string,
                       int x,
                       int y)
Draws a string at the specified location, using the current font.
Overrides:
drawString in interface Graphics2D
Parameters:
x - the x-coordinate.
y - the y-coordinate.

drawString

public void drawString(AttributedCharacterIterator ci,
                       float x,
                       float y)
Draws an attributed string at the specified location.
Overrides:
drawString in interface Graphics2D
Parameters:
x - the x-coordinate.
y - the y-coordinate.

drawString

public void drawString(AttributedCharacterIterator ci,
                       int x,
                       int y)
Draws an attributed string at the specified location.
Overrides:
drawString in interface Graphics2D
Parameters:
x - the x-coordinate.
y - the y-coordinate.

fill

public void fill(Shape s)
Fills the interior of the specified shape using the current paint.
Overrides:
fill in interface Graphics2D
Parameters:

fill3DRect

public void fill3DRect(int x,
                       int y,
                       int width,
                       int height,
                       boolean raised)
Overrides:
fill3DRect in interface Graphics2D

fillArc

public void fillArc(int x,
                    int y,
                    int width,
                    int height,
                    int arcStart,
                    int arcAngle)
Overrides:
fillArc in interface Graphics

fillOval

public void fillOval(int x,
                     int y,
                     int width,
                     int height)
Overrides:
fillOval in interface Graphics

fillPolygon

public void fillPolygon(xPoints[] ,
                        yPoints[] ,
                        int npoints)
Overrides:
fillPolygon in interface Graphics

fillRect

public void fillRect(int x,
                     int y,
                     int width,
                     int height)
Overrides:
fillRect in interface Graphics

fillRoundRect

public void fillRoundRect(int x,
                          int y,
                          int width,
                          int height,
                          int arcWidth,
                          int arcHeight)
Overrides:
fillRoundRect in interface Graphics

getBackground

public Color getBackground()
Returns the color used by the Graphics.clearRect(int,int,int,int) method.
Overrides:
getBackground in interface Graphics2D
Returns:
The background color.

getClip

public Shape getClip()
Overrides:
getClip in interface Graphics

getClipBounds

public Rectangle getClipBounds()
Overrides:
getClipBounds in interface Graphics

getColor

public Color getColor()
Overrides:
getColor in interface Graphics

getComposite

public Composite getComposite()
Returns the current compositing rule.
Overrides:
getComposite in interface Graphics2D
Returns:
The current compositing rule.

getDeviceConfiguration

public abstract GraphicsConfiguration getDeviceConfiguration()
Overrides:
getDeviceConfiguration in interface Graphics2D

getFont

public Font getFont()
Overrides:
getFont in interface Graphics

getFontMetrics

public FontMetrics getFontMetrics(Font font)
Overrides:
getFontMetrics in interface Graphics

getFontRenderContext

public FontRenderContext getFontRenderContext()
Returns the font render context.
Overrides:
getFontRenderContext in interface Graphics2D
Returns:
The font render context.

getPaint

public Paint getPaint()
Returns the current paint.
Overrides:
getPaint in interface Graphics2D
Returns:
The current paint.

getRenderingHint

public Object getRenderingHint(RenderingHints.Key hintKey)
Returns the current value of a rendering hint.
Overrides:
getRenderingHint in interface Graphics2D
Parameters:
hintKey - the key for the hint.
Returns:
The value for the specified hint.

getRenderingHints

public RenderingHints getRenderingHints()
Returns the current rendering hints.
Overrides:
getRenderingHints in interface Graphics2D
Returns:
The current rendering hints.

getStroke

public Stroke getStroke()
Returns the current stroke.
Overrides:
getStroke in interface Graphics2D
Returns:
The current stroke.

getTransform

public AffineTransform getTransform()
Returns the current transform.
Overrides:
getTransform in interface Graphics2D
Returns:
The current transform.

hit

public boolean hit(Rectangle rect,
                   Shape s,
                   boolean onStroke)
Overrides:
hit in interface Graphics2D

initImage

protected void initImage(QtImage image)

initVolatileImage

protected void initVolatileImage(QtVolatileImage image)

rotate

public void rotate(double theta)
Overrides:
rotate in interface Graphics2D

rotate

public void rotate(double theta,
                   double x,
                   double y)
Overrides:
rotate in interface Graphics2D

scale

public void scale(double sx,
                  double sy)
Overrides:
scale in interface Graphics2D

setBackground

public void setBackground(Color color)
Sets the background color (used by the Graphics.clearRect(int,int,int,int) method).
Overrides:
setBackground in interface Graphics2D
Parameters:
color - the color.

setClip

public void setClip(int x,
                    int y,
                    int width,
                    int height)
Overrides:
setClip in interface Graphics

setClip

public void setClip(Shape clip)
Sets the clip
Overrides:
setClip in interface Graphics

setColor

public void setColor(Color c)
Overrides:
setColor in interface Graphics

setComposite

public void setComposite(Composite comp)
Sets the current compositing rule.
Overrides:
setComposite in interface Graphics2D
Parameters:
comp - the composite.

setFont

public void setFont(Font font)
Overrides:
setFont in interface Graphics

setPaint

public void setPaint(Paint p)
Sets the paint to be used for subsequent drawing operations.
Overrides:
setPaint in interface Graphics2D
Parameters:

setPaintMode

public void setPaintMode()
Overrides:
setPaintMode in interface Graphics

setRenderingHint

public void setRenderingHint(RenderingHints.Key hintKey,
                             Object hintValue)
Adds or updates a hint in the current rendering hints table.
Overrides:
setRenderingHint in interface Graphics2D
Parameters:
hintKey - the hint key.
hintValue - the hint value.

setRenderingHints

public void setRenderingHints(Map hints)
Replaces the current rendering hints with the supplied hints.
Overrides:
setRenderingHints in interface Graphics2D
Parameters:
hints - the hints.
See Also:
addRenderingHints(Map)

setStroke

public void setStroke(Stroke s)
Sets the stroke to be used for subsequent drawing operations.
Overrides:
setStroke in interface Graphics2D
Parameters:

setTransform

public void setTransform(AffineTransform Tx)
Sets the current transform. If the caller specifies a null transform, this method should set the current transform to the identity transform.
Overrides:
setTransform in interface Graphics2D
Parameters:

setXORMode

public void setXORMode(Color color)
Overrides:
setXORMode in interface Graphics

setup

protected void setup()
Set up some generic defaults.

shear

public void shear(double shx,
                  double shy)
Overrides:
shear in interface Graphics2D

transform

public void transform(AffineTransform Tx)
Sets the current transform to a concatenation of transform and the existing transform.
Overrides:
transform in interface Graphics2D
Parameters:

translate

public void translate(double tx,
                      double ty)
Overrides:
translate in interface Graphics2D

translate

public void translate(int x,
                      int y)
Overrides:
translate in interface Graphics2D

QtGraphics.java -- Copyright (C) 2005, 2006 Free Software Foundation, Inc. This file is part of GNU Classpath. GNU Classpath is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. GNU Classpath is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with GNU Classpath; see the file COPYING. If not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. Linking this library statically or dynamically with other modules is making a combined work based on this library. Thus, the terms and conditions of the GNU General Public License cover the whole combination. As a special exception, the copyright holders of this library give you permission to link this library with independent modules to produce an executable, regardless of the license terms of these independent modules, and to copy and distribute the resulting executable under terms of your choice, provided that you also meet, for each linked independent module, the terms and conditions of the license of that module. An independent module is a module which is not derived from or based on this library. If you modify this library, you may extend this exception to your version of the library, but you are not obligated to do so. If you do not wish to do so, delete this exception statement from your version.