public class SLGraphics
extends java.awt.Graphics2D
implements java.lang.Cloneable
| Constructor and Description |
|---|
SLGraphics(GroupShape<?,?> group)
Construct Java Graphics object which translates graphic calls in ppt drawing layer.
|
| Modifier and Type | Method and Description |
|---|---|
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.
|
GroupShape<?,?> |
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.
|
public SLGraphics(GroupShape<?,?> group)
group - The shape group to write the graphics calls into.public GroupShape<?,?> getShapeGroup()
public java.awt.Font getFont()
getFont in class java.awt.GraphicsFont,
Graphics.setFont(Font)public void setFont(java.awt.Font font)
setFont in class java.awt.Graphicsfont - the font.Graphics.getFont(),
Graphics.drawString(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.GraphicsColor,
Graphics.setColor(java.awt.Color)public void setColor(java.awt.Color c)
setColor in class java.awt.Graphicsc - the new rendering color.Color,
Graphics.getColor()public java.awt.Stroke getStroke()
Stroke in the
Graphics2D context.getStroke in class java.awt.Graphics2DGraphics2D 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.Graphics2Ds - 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.Graphics2DGraphics2D 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.Graphics2Dpaint - the Paint object to be used to generate
color during the rendering process, or nullGraphics.setColor(java.awt.Color)public java.awt.geom.AffineTransform getTransform()
Transform in the
Graphics2D context.getTransform in class java.awt.Graphics2DAffineTransform 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.Graphics2DTx - the AffineTransform object to be used in the
rendering process_transform,
AffineTransformpublic 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.Graphics2Dshape - 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.Graphics2Ds - 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
nullsetPaint(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.Graphics2Dshape - 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.Graphics2Dx - the x coordinate.y - the y coordinate.@NotImplemented 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.Graphics2Ds - the Shape to be intersected with the current
Clip. If s is null,
this method clears the current Clip.@NotImplemented public java.awt.Shape getClip()
setClip(null), this method returns
null.getClip in class java.awt.GraphicsShape 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.Graphics2Dsx - 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.Graphicsx - 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.Graphics2Dstr - 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.Graphicsx - 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.Graphicsx - 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.Graphicsx - 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.Graphicsx - 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.GraphicsxPoints - 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.Graphicsx - 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)@NotImplemented 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.Graphicsimg - 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(Image, int, int, int, int, int)@NotImplemented 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.Graphicsimg - 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(Image, int, int, int, int, int)@NotImplemented 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.Graphicsimg - 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(Image, int, int, int, int, int)@NotImplemented 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.Graphicsimg - 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(Image, int, int, int, int, int)@NotImplemented 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.Graphicsimg - 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(Image, int, int, int, int, int)public void dispose()
Graphics object cannot be used after
disposehas been called.
When a Java program runs, a large number of Graphics
objects can be created within a short time frame.
Although the finalization process of the garbage collector
also disposes of the same system resources, it is preferable
to manually free the associated resources by calling this
method rather than to rely on a finalization process which
may not run to completion for a long period of time.
Graphics objects which are provided as arguments to the
paint and update methods
of components are automatically released by the system when
those methods return. For efficiency, programmers should
call dispose when finished using
a Graphics object only if it was created
directly from a component or another Graphics object.
dispose in class java.awt.GraphicsGraphics.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.Graphicsx1 - 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.GraphicsxPoints - 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.Graphicsx - 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.Graphicsx - 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.GraphicsxPoints - 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.Graphicsx - 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)@NotImplemented 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.Graphicsclip - 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.Graphicsnull 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.Graphics2Diterator - 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.Graphicsx - 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(Color),
Graphics.setPaintMode(),
Graphics.setXORMode(Color)public void copyArea(int x,
int y,
int width,
int height,
int dx,
int dy)
copyArea in class java.awt.Graphicspublic void setClip(int x,
int y,
int width,
int height)
setClip in class java.awt.Graphicsx - 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.Graphics2Dtheta - 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.Graphics2Dtheta - 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.Graphics2Dshx - 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.Graphics2DFontRenderContext,
Font.createGlyphVector(FontRenderContext,char[]),
TextLayoutpublic 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.Graphics2DTx - the AffineTransform object to be composed with
the current TransformsetTransform(java.awt.geom.AffineTransform),
AffineTransformpublic 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.Graphics2Dimg - 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.Graphics2Dcolor - the background color that isused in
subsequent calls to clearRectgetBackground(),
Graphics.clearRect(int, int, int, int)public java.awt.Color getBackground()
getBackground in class java.awt.Graphics2DGraphics2D Color,
which defines the background color.setBackground(java.awt.Color)@NotImplemented 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.Graphics2Dcomp - 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@NotImplemented public java.awt.Composite getComposite()
Composite in the
Graphics2D context.getComposite in class java.awt.Graphics2DGraphics2D 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.Graphics2DhintKey - the key corresponding to the hint to get.RenderingHints class.RenderingHintspublic 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.Graphics2DhintKey - the key of the hint to be set.hintValue - the value indicating preferences for the specified
hint category.RenderingHintspublic 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.Graphics2Dg - 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.Graphics2Dpublic 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.Graphics2Dhints - the rendering hints to be setRenderingHintspublic 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.Graphics2Dtx - the distance to translate along the x-axisty - the distance to translate along the y-axis@NotImplemented public 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.Graphics2Diterator - 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.Graphics2Drect - 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.Graphics2DRenderingHints
that contains the current preferences.RenderingHintspublic 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.Graphics2Dhints - the rendering hints to be setRenderingHints@NotImplemented 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.Graphics2Dimg - 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)@NotImplemented 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.Graphicsimg - 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(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.Graphicspublic java.awt.FontMetrics getFontMetrics(java.awt.Font f)
getFontMetrics in class java.awt.Graphicsf - the specified fontGraphics.getFont(),
FontMetrics,
Graphics.getFontMetrics()@NotImplemented 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.Graphicsc1 - the XOR alternation color@NotImplemented public void setPaintMode()
setPaintMode in class java.awt.Graphics@NotImplemented 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.Graphics2Dimg - 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)@NotImplemented 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.Graphics2Dimg - 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)
Copyright 2022 The Apache Software Foundation or its licensors, as applicable.