public final class PPGraphics2D
extends java.awt.Graphics2D
implements java.lang.Cloneable
Constructor and Description |
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PPGraphics2D(ShapeGroup group)
Construct Java Graphics object which translates graphic calls in ppt drawing layer.
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Modifier and Type | Method and Description |
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void |
addRenderingHints(java.util.Map hints)
Sets the values of an arbitrary number of preferences for the
rendering algorithms.
|
protected void |
applyPaint(SimpleShape shape) |
protected void |
applyStroke(SimpleShape shape) |
void |
clearRect(int x,
int y,
int width,
int height)
Clears the specified rectangle by filling it with the background
color of the current drawing surface.
|
void |
clip(java.awt.Shape s)
Intersects the current
Clip with the interior of the
specified Shape and sets the Clip to the
resulting intersection. |
void |
clipRect(int x,
int y,
int width,
int height)
Intersects the current clip with the specified rectangle.
|
void |
copyArea(int x,
int y,
int width,
int height,
int dx,
int dy) |
java.awt.Graphics |
create()
Creates a new
Graphics object that is
a copy of this Graphics object. |
void |
dispose()
Disposes of this graphics context and releases
any system resources that it is using.
|
void |
draw(java.awt.Shape shape)
Strokes the outline of a
Shape using the settings of the
current Graphics2D context. |
void |
drawArc(int x,
int y,
int width,
int height,
int startAngle,
int arcAngle)
Draws the outline of a circular or elliptical arc
covering the specified rectangle.
|
void |
drawGlyphVector(java.awt.font.GlyphVector g,
float x,
float y)
Renders the text of the specified
GlyphVector using
the Graphics2D context's rendering attributes. |
void |
drawImage(java.awt.image.BufferedImage img,
java.awt.image.BufferedImageOp op,
int x,
int y)
Renders a
BufferedImage that is
filtered with a
BufferedImageOp . |
boolean |
drawImage(java.awt.Image img,
java.awt.geom.AffineTransform xform,
java.awt.image.ImageObserver obs)
Renders an image, applying a transform from image space into user space
before drawing.
|
boolean |
drawImage(java.awt.Image img,
int x,
int y,
java.awt.Color bgcolor,
java.awt.image.ImageObserver observer)
Draws as much of the specified image as is currently available.
|
boolean |
drawImage(java.awt.Image img,
int x,
int y,
java.awt.image.ImageObserver observer)
Draws as much of the specified image as is currently available.
|
boolean |
drawImage(java.awt.Image img,
int x,
int y,
int width,
int height,
java.awt.Color bgcolor,
java.awt.image.ImageObserver observer)
Draws as much of the specified image as has already been scaled
to fit inside the specified rectangle.
|
boolean |
drawImage(java.awt.Image img,
int x,
int y,
int width,
int height,
java.awt.image.ImageObserver observer)
Draws as much of the specified image as has already been scaled
to fit inside the specified rectangle.
|
boolean |
drawImage(java.awt.Image img,
int dx1,
int dy1,
int dx2,
int dy2,
int sx1,
int sy1,
int sx2,
int sy2,
java.awt.Color bgcolor,
java.awt.image.ImageObserver 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.
|
boolean |
drawImage(java.awt.Image img,
int dx1,
int dy1,
int dx2,
int dy2,
int sx1,
int sy1,
int sx2,
int sy2,
java.awt.image.ImageObserver 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.
|
void |
drawLine(int x1,
int y1,
int x2,
int y2)
Draws a line, using the current color, between the points
(x1, y1) and (x2, y2)
in this graphics context's coordinate system. |
void |
drawOval(int x,
int y,
int width,
int height)
Draws the outline of an oval.
|
void |
drawPolygon(int[] xPoints,
int[] yPoints,
int nPoints)
Draws a closed polygon defined by
arrays of x and y coordinates.
|
void |
drawPolyline(int[] xPoints,
int[] yPoints,
int nPoints)
Draws a sequence of connected lines defined by
arrays of x and y coordinates.
|
void |
drawRect(int x,
int y,
int width,
int height)
Draws the outline of the specified rectangle.
|
void |
drawRenderableImage(java.awt.image.renderable.RenderableImage img,
java.awt.geom.AffineTransform xform)
Renders a
RenderedImage ,
applying a transform from image
space into user space before drawing. |
void |
drawRenderedImage(java.awt.image.RenderedImage img,
java.awt.geom.AffineTransform xform)
Renders a
RenderableImage ,
applying a transform from image space into user space before drawing. |
void |
drawRoundRect(int x,
int y,
int width,
int height,
int arcWidth,
int arcHeight)
Draws an outlined round-cornered rectangle using this graphics
context's current color.
|
void |
drawString(java.text.AttributedCharacterIterator iterator,
float x,
float y)
Renders the text of the specified iterator, using the
Graphics2D context's current Paint . |
void |
drawString(java.text.AttributedCharacterIterator iterator,
int x,
int y)
Draws the text given by the specified iterator, using this
graphics context's current color.
|
void |
drawString(java.lang.String s,
float x,
float y)
Renders the text specified by the specified
String ,
using the current text attribute state in the Graphics2D context. |
void |
drawString(java.lang.String str,
int x,
int y)
Draws the text given by the specified string, using this
graphics context's current font and color.
|
void |
fill(java.awt.Shape shape)
Fills the interior of a
Shape using the settings of the
Graphics2D context. |
void |
fillArc(int x,
int y,
int width,
int height,
int startAngle,
int arcAngle)
Fills a circular or elliptical arc covering the specified rectangle.
|
void |
fillOval(int x,
int y,
int width,
int height)
Fills an oval bounded by the specified rectangle with the
current color.
|
void |
fillPolygon(int[] xPoints,
int[] yPoints,
int nPoints)
Fills a closed polygon defined by
arrays of x and y coordinates.
|
void |
fillRect(int x,
int y,
int width,
int height)
Fills the specified rectangle.
|
void |
fillRoundRect(int x,
int y,
int width,
int height,
int arcWidth,
int arcHeight)
Fills the specified rounded corner rectangle with the current color.
|
java.awt.Color |
getBackground()
Returns the background color used for clearing a region.
|
java.awt.Shape |
getClip()
Gets the current clipping area.
|
java.awt.Rectangle |
getClipBounds()
Returns the bounding rectangle of the current clipping area.
|
java.awt.Color |
getColor()
Gets this graphics context's current color.
|
java.awt.Composite |
getComposite()
Returns the current
Composite in the
Graphics2D context. |
java.awt.GraphicsConfiguration |
getDeviceConfiguration()
Returns the device configuration associated with this
Graphics2D . |
java.awt.Font |
getFont()
Gets the current font.
|
java.awt.FontMetrics |
getFontMetrics(java.awt.Font f)
Gets the font metrics for the specified font.
|
java.awt.font.FontRenderContext |
getFontRenderContext()
Get the rendering context of the
Font within this
Graphics2D context. |
java.awt.Paint |
getPaint()
Returns the current
Paint of the
Graphics2D context. |
java.lang.Object |
getRenderingHint(java.awt.RenderingHints.Key hintKey)
Returns the value of a single preference for the rendering algorithms.
|
java.awt.RenderingHints |
getRenderingHints()
Gets the preferences for the rendering algorithms.
|
ShapeGroup |
getShapeGroup() |
java.awt.Stroke |
getStroke()
Returns the current
Stroke in the
Graphics2D context. |
java.awt.geom.AffineTransform |
getTransform()
Returns a copy of the current
Transform in the
Graphics2D context. |
boolean |
hit(java.awt.Rectangle rect,
java.awt.Shape s,
boolean onStroke)
Checks whether or not the specified
Shape intersects
the specified Rectangle , which is in device
space. |
void |
rotate(double theta)
Concatenates the current
Graphics2D
Transform with a rotation transform. |
void |
rotate(double theta,
double x,
double y)
Concatenates the current
Graphics2D
Transform with a translated rotation
transform. |
void |
scale(double sx,
double sy)
Concatenates the current
Graphics2D
Transform with a scaling transformation
Subsequent rendering is resized according to the specified scaling
factors relative to the previous scaling. |
void |
setBackground(java.awt.Color color)
Sets the background color for the
Graphics2D context. |
void |
setClip(int x,
int y,
int width,
int height)
Sets the current clip to the rectangle specified by the given
coordinates.
|
void |
setClip(java.awt.Shape clip)
Sets the current clipping area to an arbitrary clip shape.
|
void |
setColor(java.awt.Color c)
Sets this graphics context's current color to the specified
color.
|
void |
setComposite(java.awt.Composite comp)
Sets the
Composite for the Graphics2D context. |
void |
setFont(java.awt.Font font)
Sets this graphics context's font to the specified font.
|
void |
setPaint(java.awt.Paint paint)
Sets the
Paint attribute for the
Graphics2D context. |
void |
setPaintMode()
Sets the paint mode of this graphics context to overwrite the
destination with this graphics context's current color.
|
void |
setRenderingHint(java.awt.RenderingHints.Key hintKey,
java.lang.Object hintValue)
Sets the value of a single preference for the rendering algorithms.
|
void |
setRenderingHints(java.util.Map hints)
Replaces the values of all preferences for the rendering
algorithms with the specified
hints . |
void |
setStroke(java.awt.Stroke s)
Sets the
Stroke for the Graphics2D context. |
void |
setTransform(java.awt.geom.AffineTransform Tx)
Sets the
Transform in the Graphics2D
context. |
void |
setXORMode(java.awt.Color c1)
Sets the paint mode of this graphics context to alternate between
this graphics context's current color and the new specified color.
|
void |
shear(double shx,
double shy)
Concatenates the current
Graphics2D
Transform with a shearing transform. |
void |
transform(java.awt.geom.AffineTransform Tx)
Composes an
AffineTransform object with the
Transform in this Graphics2D according
to the rule last-specified-first-applied. |
void |
translate(double tx,
double ty)
Concatenates the current
Graphics2D Transform
with a translation transform. |
void |
translate(int x,
int y)
Translates the origin of the graphics context to the point
(x, y) in the current coordinate system.
|
protected POILogger log
public PPGraphics2D(ShapeGroup group)
group
- The shape group to write the graphics calls into.public ShapeGroup getShapeGroup()
public java.awt.Font getFont()
getFont
in class java.awt.Graphics
Font
,
Graphics.setFont(Font)
public void setFont(java.awt.Font font)
setFont
in class java.awt.Graphics
font
- the font.Graphics.getFont()
,
Graphics.drawString(java.lang.String, int, int)
,
Graphics.drawBytes(byte[], int, int, int, int)
,
Graphics.drawChars(char[], int, int, int, int)
public java.awt.Color getColor()
getColor
in class java.awt.Graphics
Color
,
Graphics.setColor(java.awt.Color)
public void setColor(java.awt.Color c)
setColor
in class java.awt.Graphics
c
- the new rendering color.Color
,
Graphics.getColor()
public java.awt.Stroke getStroke()
Stroke
in the
Graphics2D
context.getStroke
in class java.awt.Graphics2D
Graphics2D
Stroke
,
which defines the line style.setStroke(java.awt.Stroke)
public void setStroke(java.awt.Stroke s)
Stroke
for the Graphics2D
context.setStroke
in class java.awt.Graphics2D
s
- the Stroke
object to be used to stroke a
Shape
during the rendering processpublic java.awt.Paint getPaint()
Paint
of the
Graphics2D
context.getPaint
in class java.awt.Graphics2D
Graphics2D
Paint
,
which defines a color or pattern.setPaint(java.awt.Paint)
,
Graphics.setColor(java.awt.Color)
public void setPaint(java.awt.Paint paint)
Paint
attribute for the
Graphics2D
context. Calling this method
with a null
Paint
object does
not have any effect on the current Paint
attribute
of this Graphics2D
.setPaint
in class java.awt.Graphics2D
paint
- the Paint
object to be used to generate
color during the rendering process, or null
Graphics.setColor(java.awt.Color)
public java.awt.geom.AffineTransform getTransform()
Transform
in the
Graphics2D
context.getTransform
in class java.awt.Graphics2D
AffineTransform
in the
Graphics2D
context._transform
,
setTransform(java.awt.geom.AffineTransform)
public void setTransform(java.awt.geom.AffineTransform Tx)
Transform
in the Graphics2D
context.setTransform
in class java.awt.Graphics2D
Tx
- the AffineTransform
object to be used in the
rendering process_transform
,
AffineTransform
public void draw(java.awt.Shape shape)
Shape
using the settings of the
current Graphics2D
context. The rendering attributes
applied include the Clip
, Transform
,
Paint
, Composite
and
Stroke
attributes.draw
in class java.awt.Graphics2D
shape
- the Shape
to be renderedsetStroke(java.awt.Stroke)
,
setPaint(java.awt.Paint)
,
Graphics.setColor(java.awt.Color)
,
_transform
,
setTransform(java.awt.geom.AffineTransform)
,
clip(java.awt.Shape)
,
setClip(java.awt.Shape)
,
setComposite(java.awt.Composite)
public void drawString(java.lang.String s, float x, float y)
String
,
using the current text attribute state in the Graphics2D
context.
The baseline of the first character is at position
(x, y) in the User Space.
The rendering attributes applied include the Clip
,
Transform
, Paint
, Font
and
Composite
attributes. For characters in script systems
such as Hebrew and Arabic, the glyphs can be rendered from right to
left, in which case the coordinate supplied is the location of the
leftmost character on the baseline.drawString
in class java.awt.Graphics2D
s
- the String
to be renderedx
- the x coordinate of the location where the
String
should be renderedy
- the y coordinate of the location where the
String
should be renderedjava.lang.NullPointerException
- if str
is
null
setPaint(java.awt.Paint)
,
Graphics.setColor(java.awt.Color)
,
Graphics.setFont(java.awt.Font)
,
setTransform(java.awt.geom.AffineTransform)
,
setComposite(java.awt.Composite)
,
setClip(java.awt.Shape)
public void fill(java.awt.Shape shape)
Shape
using the settings of the
Graphics2D
context. The rendering attributes applied
include the Clip
, Transform
,
Paint
, and Composite
.fill
in class java.awt.Graphics2D
shape
- the Shape
to be filledsetPaint(java.awt.Paint)
,
Graphics.setColor(java.awt.Color)
,
_transform
,
setTransform(java.awt.geom.AffineTransform)
,
setComposite(java.awt.Composite)
,
clip(java.awt.Shape)
,
setClip(java.awt.Shape)
public void translate(int x, int y)
translate
in class java.awt.Graphics2D
x
- the x coordinate.y
- the y coordinate.public void clip(java.awt.Shape s)
Clip
with the interior of the
specified Shape
and sets the Clip
to the
resulting intersection. The specified Shape
is
transformed with the current Graphics2D
Transform
before being intersected with the current
Clip
. This method is used to make the current
Clip
smaller.
To make the Clip
larger, use setClip
.
The user clip modified by this method is independent of the
clipping associated with device bounds and visibility. If no clip has
previously been set, or if the clip has been cleared using
setClip
with a
null
argument, the specified Shape
becomes
the new user clip.clip
in class java.awt.Graphics2D
s
- the Shape
to be intersected with the current
Clip
. If s
is null
,
this method clears the current Clip
.public java.awt.Shape getClip()
setClip(null)
, this method returns
null
.getClip
in class java.awt.Graphics
Shape
object representing the
current clipping area, or null
if
no clip is set.Graphics.getClipBounds()
,
Graphics.clipRect(int, int, int, int)
,
Graphics.setClip(int, int, int, int)
,
Graphics.setClip(Shape)
public void scale(double sx, double sy)
Graphics2D
Transform
with a scaling transformation
Subsequent rendering is resized according to the specified scaling
factors relative to the previous scaling.
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 ]
scale
in class java.awt.Graphics2D
sx
- the amount by which X coordinates in subsequent
rendering operations are multiplied relative to previous
rendering operations.sy
- the amount by which Y coordinates in subsequent
rendering operations are multiplied relative to previous
rendering operations.public void drawRoundRect(int x, int y, int width, int height, int arcWidth, int arcHeight)
x
and x + width
,
respectively. The top and bottom edges of the rectangle are at
y
and y + height
.drawRoundRect
in class java.awt.Graphics
x
- the x coordinate of the rectangle to be drawn.y
- the y coordinate of the rectangle to be drawn.width
- the width of the rectangle to be drawn.height
- the height of the rectangle to be drawn.arcWidth
- the horizontal diameter of the arc
at the four corners.arcHeight
- the vertical diameter of the arc
at the four corners.Graphics.fillRoundRect(int, int, int, int, int, int)
public void drawString(java.lang.String str, int x, int y)
drawString
in class java.awt.Graphics2D
str
- the string to be drawn.x
- the x coordinate.y
- the y coordinate.Graphics.drawBytes(byte[], int, int, int, int)
,
Graphics.drawChars(char[], int, int, int, int)
public void fillOval(int x, int y, int width, int height)
fillOval
in class java.awt.Graphics
x
- the x coordinate of the upper left corner
of the oval to be filled.y
- the y coordinate of the upper left corner
of the oval to be filled.width
- the width of the oval to be filled.height
- the height of the oval to be filled.Graphics.drawOval(int, int, int, int)
public void fillRoundRect(int x, int y, int width, int height, int arcWidth, int arcHeight)
x
and x + width - 1
,
respectively. The top and bottom edges of the rectangle are at
y
and y + height - 1
.fillRoundRect
in class java.awt.Graphics
x
- the x coordinate of the rectangle to be filled.y
- the y coordinate of the rectangle to be filled.width
- the width of the rectangle to be filled.height
- the height of the rectangle to be filled.arcWidth
- the horizontal diameter
of the arc at the four corners.arcHeight
- the vertical diameter
of the arc at the four corners.Graphics.drawRoundRect(int, int, int, int, int, int)
public void fillArc(int x, int y, int width, int height, int startAngle, int arcAngle)
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.
The angles are specified relative to the non-square extents of the bounding rectangle such that 45 degrees always falls on the line from the center of the ellipse to the upper right corner of the bounding rectangle. As a result, if the bounding rectangle is noticeably longer in one axis than the other, the angles to the start and end of the arc segment will be skewed farther along the longer axis of the bounds.
fillArc
in class java.awt.Graphics
x
- the x coordinate of the
upper-left corner of the arc to be filled.y
- the y coordinate of the
upper-left corner of the arc to be filled.width
- the width of the arc to be filled.height
- the height of the arc to be filled.startAngle
- the beginning angle.arcAngle
- the angular extent of the arc,
relative to the start angle.Graphics.drawArc(int, int, int, int, int, int)
public void drawArc(int x, int y, int width, int height, int startAngle, int arcAngle)
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.
The angles are specified relative to the non-square extents of the bounding rectangle such that 45 degrees always falls on the line from the center of the ellipse to the upper right corner of the bounding rectangle. As a result, if the bounding rectangle is noticeably longer in one axis than the other, the angles to the start and end of the arc segment will be skewed farther along the longer axis of the bounds.
drawArc
in class java.awt.Graphics
x
- the x coordinate of the
upper-left corner of the arc to be drawn.y
- the y coordinate of the
upper-left corner of the arc to be drawn.width
- the width of the arc to be drawn.height
- the height of the arc to be drawn.startAngle
- the beginning angle.arcAngle
- the angular extent of the arc,
relative to the start angle.Graphics.fillArc(int, int, int, int, int, int)
public void drawPolyline(int[] xPoints, int[] yPoints, int nPoints)
drawPolyline
in class java.awt.Graphics
xPoints
- an array of x pointsyPoints
- an array of y pointsnPoints
- the total number of pointsGraphics.drawPolygon(int[], int[], int)
public void drawOval(int x, int y, int width, int height)
x
, y
,
width
, and height
arguments.
The oval covers an area that is
width + 1
pixels wide
and height + 1
pixels tall.
drawOval
in class java.awt.Graphics
x
- the x coordinate of the upper left
corner of the oval to be drawn.y
- the y coordinate of the upper left
corner of the oval to be drawn.width
- the width of the oval to be drawn.height
- the height of the oval to be drawn.Graphics.fillOval(int, int, int, int)
public boolean drawImage(java.awt.Image img, int x, int y, java.awt.Color bgcolor, java.awt.image.ImageObserver observer)
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.
drawImage
in class java.awt.Graphics
img
- the specified image to be drawn.x
- the x coordinate.y
- the y coordinate.bgcolor
- the background color to paint under the
non-opaque portions of the image.observer
- object to be notified as more of
the image is converted.Image
,
ImageObserver
,
ImageObserver.imageUpdate(java.awt.Image, int, int, int, int, int)
public boolean drawImage(java.awt.Image img, int x, int y, int width, int height, java.awt.Color bgcolor, java.awt.image.ImageObserver observer)
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.
drawImage
in class java.awt.Graphics
img
- the specified image to be drawn.x
- the x coordinate.y
- the y coordinate.width
- the width of the rectangle.height
- the height of the rectangle.bgcolor
- the background color to paint under the
non-opaque portions of the image.observer
- object to be notified as more of
the image is converted.Image
,
ImageObserver
,
ImageObserver.imageUpdate(java.awt.Image, int, int, int, int, int)
public boolean drawImage(java.awt.Image img, int dx1, int dy1, int dx2, int dy2, int sx1, int sy1, int sx2, int sy2, java.awt.image.ImageObserver observer)
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.
drawImage
in class java.awt.Graphics
img
- the specified image to be drawndx1
- the x coordinate of the first corner of the
destination rectangle.dy1
- the y coordinate of the first corner of the
destination rectangle.dx2
- the x coordinate of the second corner of the
destination rectangle.dy2
- the y coordinate of the second corner of the
destination rectangle.sx1
- the x coordinate of the first corner of the
source rectangle.sy1
- the y coordinate of the first corner of the
source rectangle.sx2
- the x coordinate of the second corner of the
source rectangle.sy2
- the y coordinate of the second corner of the
source rectangle.observer
- object to be notified as more of the image is
scaled and converted.Image
,
ImageObserver
,
ImageObserver.imageUpdate(java.awt.Image, int, int, int, int, int)
public boolean drawImage(java.awt.Image img, int dx1, int dy1, int dx2, int dy2, int sx1, int sy1, int sx2, int sy2, java.awt.Color bgcolor, java.awt.image.ImageObserver observer)
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.
drawImage
in class java.awt.Graphics
img
- the specified image to be drawndx1
- the x coordinate of the first corner of the
destination rectangle.dy1
- the y coordinate of the first corner of the
destination rectangle.dx2
- the x coordinate of the second corner of the
destination rectangle.dy2
- the y coordinate of the second corner of the
destination rectangle.sx1
- the x coordinate of the first corner of the
source rectangle.sy1
- the y coordinate of the first corner of the
source rectangle.sx2
- the x coordinate of the second corner of the
source rectangle.sy2
- the y coordinate of the second corner of the
source rectangle.bgcolor
- the background color to paint under the
non-opaque portions of the image.observer
- object to be notified as more of the image is
scaled and converted.Image
,
ImageObserver
,
ImageObserver.imageUpdate(java.awt.Image, int, int, int, int, int)
public boolean drawImage(java.awt.Image img, int x, int y, java.awt.image.ImageObserver observer)
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 completely loaded and its pixels are
no longer being changed, then
drawImage
returns true
.
Otherwise, drawImage
returns false
and as more of
the image becomes available
or it is time to draw another frame of animation,
the process that loads the image notifies
the specified image observer.
drawImage
in class java.awt.Graphics
img
- the specified image to be drawn. This method does
nothing if img
is null.x
- the x coordinate.y
- the y coordinate.observer
- object to be notified as more of
the image is converted.false
if the image pixels are still changing;
true
otherwise.Image
,
ImageObserver
,
ImageObserver.imageUpdate(java.awt.Image, int, int, int, int, int)
public void dispose()
Graphics
object cannot be used after
dispose
has 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.
dispose
in class java.awt.Graphics
Graphics.finalize()
,
Component.paint(java.awt.Graphics)
,
Component.update(java.awt.Graphics)
,
Component.getGraphics()
,
Graphics.create()
public void drawLine(int x1, int y1, int x2, int y2)
(x1, y1)
and (x2, y2)
in this graphics context's coordinate system.drawLine
in class java.awt.Graphics
x1
- the first point's x coordinate.y1
- the first point's y coordinate.x2
- the second point's x coordinate.y2
- the second point's y coordinate.public void fillPolygon(int[] xPoints, int[] yPoints, int nPoints)
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.
fillPolygon
in class java.awt.Graphics
xPoints
- a an array of x
coordinates.yPoints
- a an array of y
coordinates.nPoints
- a the total number of points.Graphics.drawPolygon(int[], int[], int)
public void fillRect(int x, int y, int width, int height)
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.fillRect
in class java.awt.Graphics
x
- the x coordinate
of the rectangle to be filled.y
- the y coordinate
of the rectangle to be filled.width
- the width of the rectangle to be filled.height
- the height of the rectangle to be filled.Graphics.clearRect(int, int, int, int)
,
Graphics.drawRect(int, int, int, int)
public void drawRect(int x, int y, int width, int height)
x
and x + width
.
The top and bottom edges are at
y
and y + height
.
The rectangle is drawn using the graphics context's current color.drawRect
in class java.awt.Graphics
x
- the x coordinate
of the rectangle to be drawn.y
- the y coordinate
of the rectangle to be drawn.width
- the width of the rectangle to be drawn.height
- the height of the rectangle to be drawn.Graphics.fillRect(int, int, int, int)
,
Graphics.clearRect(int, int, int, int)
public void drawPolygon(int[] xPoints, int[] yPoints, int nPoints)
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.
drawPolygon
in class java.awt.Graphics
xPoints
- a an array of x
coordinates.yPoints
- a an array of y
coordinates.nPoints
- a the total number of points.Graphics.fillPolygon(int[],int[],int)
,
Graphics.drawPolyline(int[], int[], int)
public void clipRect(int x, int y, int width, int height)
setClip(null)
,
the specified rectangle becomes the new clip.
This method sets the user clip, which is independent of the
clipping associated with device bounds and window visibility.
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.clipRect
in class java.awt.Graphics
x
- the x coordinate of the rectangle to intersect the clip withy
- the y coordinate of the rectangle to intersect the clip withwidth
- the width of the rectangle to intersect the clip withheight
- the height of the rectangle to intersect the clip withsetClip(int, int, int, int)
,
setClip(Shape)
public void setClip(java.awt.Shape clip)
Shape
interface can be used to set the clip. The only
Shape
objects that are guaranteed to be
supported are Shape
objects that are
obtained via the getClip
method and via
Rectangle
objects. This method sets the
user clip, which is independent of the clipping associated
with device bounds and window visibility.setClip
in class java.awt.Graphics
clip
- the Shape
to use to set the clipGraphics.getClip()
,
Graphics.clipRect(int, int, int, int)
,
Graphics.setClip(int, int, int, int)
public java.awt.Rectangle getClipBounds()
setClip(null)
, this method returns
null
.
The coordinates in the rectangle are relative to the coordinate
system origin of this graphics context.getClipBounds
in class java.awt.Graphics
null
if no clip is set.Graphics.getClip()
,
Graphics.clipRect(int, int, int, int)
,
Graphics.setClip(int, int, int, int)
,
Graphics.setClip(Shape)
public void drawString(java.text.AttributedCharacterIterator iterator, int x, int y)
drawString
in class java.awt.Graphics2D
iterator
- the iterator whose text is to be drawnx
- the x coordinate.y
- the y coordinate.Graphics.drawBytes(byte[], int, int, int, int)
,
Graphics.drawChars(char[], int, int, int, int)
public void clearRect(int x, int y, int width, int height)
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.
clearRect
in class java.awt.Graphics
x
- the x coordinate of the rectangle to clear.y
- the y coordinate of the rectangle to clear.width
- the width of the rectangle to clear.height
- the height of the rectangle to clear.Graphics.fillRect(int, int, int, int)
,
Graphics.drawRect(int, int, int, int)
,
Graphics.setColor(java.awt.Color)
,
Graphics.setPaintMode()
,
Graphics.setXORMode(java.awt.Color)
public void copyArea(int x, int y, int width, int height, int dx, int dy)
copyArea
in class java.awt.Graphics
public void setClip(int x, int y, int width, int height)
setClip
in class java.awt.Graphics
x
- the x coordinate of the new clip rectangle.y
- the y coordinate of the new clip rectangle.width
- the width of the new clip rectangle.height
- the height of the new clip rectangle.Graphics.clipRect(int, int, int, int)
,
Graphics.setClip(Shape)
public void rotate(double theta)
Graphics2D
Transform
with a rotation transform.
Subsequent rendering is rotated by the specified radians relative
to the previous origin.
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.
rotate
in class java.awt.Graphics2D
theta
- the angle of rotation in radianspublic void rotate(double theta, double x, double y)
Graphics2D
Transform
with a translated rotation
transform. Subsequent rendering is transformed by a transform
which is constructed by translating to the specified location,
rotating by the specified radians, and translating back by the same
amount as the original translation. 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.
rotate
in class java.awt.Graphics2D
theta
- the angle of rotation in radiansx
- x coordinate of the origin of the rotationy
- y coordinate of the origin of the rotationpublic void shear(double shx, double shy)
Graphics2D
Transform
with a shearing transform.
Subsequent renderings are sheared by the specified
multiplier relative to the previous position.
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 ]
shear
in class java.awt.Graphics2D
shx
- the multiplier by which coordinates are shifted in
the positive X axis direction as a function of their Y coordinateshy
- the multiplier by which coordinates are shifted in
the positive Y axis direction as a function of their X coordinatepublic java.awt.font.FontRenderContext getFontRenderContext()
Font
within this
Graphics2D
context.
The FontRenderContext
encapsulates application hints such as anti-aliasing and
fractional metrics, as well as target device specific information
such as dots-per-inch. This information should be provided by the
application when using objects that perform typographical
formatting, such as Font
and
TextLayout
. This information should also be provided
by applications that perform their own layout and need accurate
measurements of various characteristics of glyphs such as advance
and line height when various rendering hints have been applied to
the text rendering.getFontRenderContext
in class java.awt.Graphics2D
FontRenderContext
,
Font.createGlyphVector(FontRenderContext,char[])
,
TextLayout
public void transform(java.awt.geom.AffineTransform Tx)
AffineTransform
object with the
Transform
in this Graphics2D
according
to the rule last-specified-first-applied. If the current
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.transform
in class java.awt.Graphics2D
Tx
- the AffineTransform
object to be composed with
the current Transform
setTransform(java.awt.geom.AffineTransform)
,
AffineTransform
public void drawImage(java.awt.image.BufferedImage img, java.awt.image.BufferedImageOp op, int x, int y)
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);
drawImage
in class java.awt.Graphics2D
img
- the BufferedImage
to be renderedop
- the filter to be applied to the image before renderingx
- the x coordinate in user space where the image is renderedy
- the y coordinate in user space where the image is rendered_transform
,
setTransform(java.awt.geom.AffineTransform)
,
setComposite(java.awt.Composite)
,
clip(java.awt.Shape)
,
setClip(Shape)
public void setBackground(java.awt.Color color)
Graphics2D
context.
The background color is used for clearing a region.
When a Graphics2D
is constructed for a
Component
, the background 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
.setBackground
in class java.awt.Graphics2D
color
- the background color that isused in
subsequent calls to clearRect
getBackground()
,
Graphics.clearRect(int, int, int, int)
public java.awt.Color getBackground()
getBackground
in class java.awt.Graphics2D
Graphics2D
Color
,
which defines the background color.setBackground(java.awt.Color)
public void setComposite(java.awt.Composite comp)
Composite
for the Graphics2D
context.
The 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 during the rendering
process.
If this Graphics2D
context is drawing to a
Component
on the display screen and the
Composite
is a custom object rather than an
instance of the AlphaComposite
class, and if
there is a security manager, its checkPermission
method is called with an AWTPermission("readDisplayPixels")
permission.
setComposite
in class java.awt.Graphics2D
comp
- the Composite
object to be used for renderingjava.lang.SecurityException
- if a custom Composite
object is being
used to render to the screen and a security manager
is set and its checkPermission
method
does not allow the operation.Graphics.setXORMode(java.awt.Color)
,
Graphics.setPaintMode()
,
AlphaComposite
public java.awt.Composite getComposite()
Composite
in the
Graphics2D
context.getComposite
in class java.awt.Graphics2D
Graphics2D
Composite
,
which defines a compositing style.setComposite(java.awt.Composite)
public java.lang.Object getRenderingHint(java.awt.RenderingHints.Key hintKey)
RenderingHints
class for definitions of some common
keys and values.getRenderingHint
in class java.awt.Graphics2D
hintKey
- the key corresponding to the hint to get.RenderingHints
class.RenderingHints
public void setRenderingHint(java.awt.RenderingHints.Key hintKey, java.lang.Object hintValue)
RenderingHints
class for definitions of some common
keys and values.setRenderingHint
in class java.awt.Graphics2D
hintKey
- the key of the hint to be set.hintValue
- the value indicating preferences for the specified
hint category.RenderingHints
public void drawGlyphVector(java.awt.font.GlyphVector g, float x, float y)
GlyphVector
using
the Graphics2D
context's rendering attributes.
The rendering attributes applied include the Clip
,
Transform
, Paint
, and
Composite
attributes. The GlyphVector
specifies individual glyphs from a Font
.
The GlyphVector
can also contain the glyph positions.
This is the fastest way to render a set of characters to the
screen.drawGlyphVector
in class java.awt.Graphics2D
g
- the GlyphVector
to be renderedx
- the x position in user space where the glyphs should be
renderedy
- the y position in user space where the glyphs should be
renderedFont.createGlyphVector(FontRenderContext, char[])
,
GlyphVector
,
setPaint(java.awt.Paint)
,
Graphics.setColor(java.awt.Color)
,
setTransform(java.awt.geom.AffineTransform)
,
setComposite(java.awt.Composite)
,
setClip(Shape)
public java.awt.GraphicsConfiguration getDeviceConfiguration()
Graphics2D
.getDeviceConfiguration
in class java.awt.Graphics2D
public void addRenderingHints(java.util.Map hints)
Map
object are modified.
All other preferences not present in the specified
object are left unmodified.
Hint categories include controls for rendering quality and
overall time/quality trade-off in the rendering process.
Refer to the RenderingHints
class for definitions of
some common keys and values.addRenderingHints
in class java.awt.Graphics2D
hints
- the rendering hints to be setRenderingHints
public void translate(double tx, double ty)
Graphics2D
Transform
with a translation transform.
Subsequent rendering is translated by the specified
distance relative to the previous position.
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 ]
translate
in class java.awt.Graphics2D
tx
- the distance to translate along the x-axisty
- the distance to translate along the y-axispublic void drawString(java.text.AttributedCharacterIterator iterator, float x, float y)
Graphics2D
context's current Paint
. The
iterator must specify a font
for each character. The baseline of the
first character is at position (x, y) in the
User Space.
The rendering attributes applied include the Clip
,
Transform
, Paint
, and
Composite
attributes.
For characters in script systems such as Hebrew and Arabic,
the glyphs can be rendered from right to left, in which case the
coordinate supplied is the location of the leftmost character
on the baseline.drawString
in class java.awt.Graphics2D
iterator
- the iterator whose text is to be renderedx
- the x coordinate where the iterator's text is to be
renderedy
- the y coordinate where the iterator's text is to be
renderedsetPaint(java.awt.Paint)
,
Graphics.setColor(java.awt.Color)
,
setTransform(java.awt.geom.AffineTransform)
,
setComposite(java.awt.Composite)
,
setClip(java.awt.Shape)
public boolean hit(java.awt.Rectangle rect, java.awt.Shape s, boolean onStroke)
Shape
intersects
the specified Rectangle
, which is in device
space. If onStroke
is false, this method checks
whether or not the interior of the specified Shape
intersects the specified Rectangle
. If
onStroke
is true
, this method checks
whether or not the Stroke
of the specified
Shape
outline intersects the specified
Rectangle
.
The rendering attributes taken into account include the
Clip
, Transform
, and Stroke
attributes.hit
in class java.awt.Graphics2D
rect
- the area in device space to check for a hits
- the Shape
to check for a hitonStroke
- flag used to choose between testing the
stroked or the filled shape. If the flag is true
, the
Stroke
oultine is tested. If the flag is
false
, the filled Shape
is tested.true
if there is a hit; false
otherwise.setStroke(java.awt.Stroke)
,
fill(Shape)
,
draw(Shape)
,
_transform
,
setTransform(java.awt.geom.AffineTransform)
,
clip(java.awt.Shape)
,
setClip(Shape)
public java.awt.RenderingHints getRenderingHints()
RenderingHints
class for definitions of some common
keys and values.getRenderingHints
in class java.awt.Graphics2D
RenderingHints
that contains the current preferences.RenderingHints
public void setRenderingHints(java.util.Map hints)
hints
.
The existing values for all rendering hints are discarded and
the new set of known hints and values are initialized from the
specified Map
object.
Hint categories include controls for rendering quality and
overall time/quality trade-off in the rendering process.
Refer to the RenderingHints
class for definitions of
some common keys and values.setRenderingHints
in class java.awt.Graphics2D
hints
- the rendering hints to be setRenderingHints
public boolean drawImage(java.awt.Image img, java.awt.geom.AffineTransform xform, java.awt.image.ImageObserver obs)
Transform
in the Graphics2D
.
The specified transformation is applied to the image before the
transform attribute in the Graphics2D
context is applied.
The rendering attributes applied include the Clip
,
Transform
, and Composite
attributes.
Note that no rendering is done if the specified transform is
noninvertible.drawImage
in class java.awt.Graphics2D
img
- the Image
to be renderedxform
- the transformation from image space into user spaceobs
- the ImageObserver
to be notified as more of the Image
is convertedtrue
if the Image
is
fully loaded and completely rendered;
false
if the Image
is still being loaded._transform
,
setTransform(java.awt.geom.AffineTransform)
,
setComposite(java.awt.Composite)
,
clip(java.awt.Shape)
,
setClip(Shape)
public boolean drawImage(java.awt.Image img, int x, int y, int width, int height, java.awt.image.ImageObserver observer)
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 loads 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.
drawImage
in class java.awt.Graphics
img
- the specified image to be drawn. This method does
nothing if img
is null.x
- the x coordinate.y
- the y coordinate.width
- the width of the rectangle.height
- the height of the rectangle.observer
- object to be notified as more of
the image is converted.false
if the image pixels are still changing;
true
otherwise.Image
,
ImageObserver
,
ImageObserver.imageUpdate(java.awt.Image, int, int, int, int, int)
public java.awt.Graphics create()
Graphics
object that is
a copy of this Graphics
object.create
in class java.awt.Graphics
public java.awt.FontMetrics getFontMetrics(java.awt.Font f)
getFontMetrics
in class java.awt.Graphics
f
- the specified fontGraphics.getFont()
,
FontMetrics
,
Graphics.getFontMetrics()
public void setXORMode(java.awt.Color c1)
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.
setXORMode
in class java.awt.Graphics
c1
- the XOR alternation colorpublic void setPaintMode()
setPaintMode
in class java.awt.Graphics
public void drawRenderedImage(java.awt.image.RenderedImage img, java.awt.geom.AffineTransform xform)
RenderableImage
,
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 specified transformation is applied to the image before the
transform attribute in the Graphics2D
context is applied.
The rendering attributes applied include the Clip
,
Transform
, and Composite
attributes. Note
that no rendering is done if the specified transform is
noninvertible.
Rendering hints set on the Graphics2D
object might
be used in rendering the RenderableImage
.
If explicit control is required over specific hints recognized by a
specific RenderableImage
, or if knowledge of which hints
are used is required, then a RenderedImage
should be
obtained directly from the RenderableImage
and rendered using
drawRenderedImage
.
drawRenderedImage
in class java.awt.Graphics2D
img
- the image to be rendered. This method does
nothing if img
is null.xform
- the transformation from image space into user space_transform
,
setTransform(java.awt.geom.AffineTransform)
,
setComposite(java.awt.Composite)
,
clip(java.awt.Shape)
,
setClip(java.awt.Shape)
,
drawRenderedImage(java.awt.image.RenderedImage, java.awt.geom.AffineTransform)
public void drawRenderableImage(java.awt.image.renderable.RenderableImage img, java.awt.geom.AffineTransform xform)
RenderedImage
,
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 specified transformation is applied to the image before the
transform attribute in the Graphics2D
context is applied.
The rendering attributes applied include the Clip
,
Transform
, and Composite
attributes. Note
that no rendering is done if the specified transform is
noninvertible.drawRenderableImage
in class java.awt.Graphics2D
img
- the image to be rendered. This method does
nothing if img
is null.xform
- the transformation from image space into user space_transform
,
setTransform(java.awt.geom.AffineTransform)
,
setComposite(java.awt.Composite)
,
clip(java.awt.Shape)
,
setClip(java.awt.Shape)
protected void applyStroke(SimpleShape shape)
protected void applyPaint(SimpleShape shape)
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