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Class java.awt.Graphics

java.lang.Object
   |
   +----java.awt.Graphics

public abstract class Graphics

extends Object

• The Component to draw on
• A translation origin for rendering and clipping coordinates
• The current clip
• The current color
• The current font
• The current logical pixel operation function (XOR or Paint)
• The current XOR alternation color (see setXORMode)

Coordinates are infinitely thin and lie between the pixels of the output device. Operations which draw the outline of a figure operate by traversing along the infinitely thin path with a pixel-sized pen that hangs down and to the right of the anchor point on the path. Operations which fill a figure operate by filling the interior of the infinitely thin path. Operations which render horizontal text render the ascending portion of the characters entirely above the baseline coordinate.

Some important points to consider are that drawing a figure that covers a given rectangle will occupy one extra row of pixels on the right and bottom edges compared to filling a figure that is bounded by that same rectangle. Also, drawing a horizontal line along the same y coordinate as the baseline of a line of text will draw the line entirely below the text except for any descenders. Both of these properties are due to the pen hanging down and to the right from the path that it traverses.

All coordinates which appear as arguments to the methods of this Graphics object are considered relative to the translation origin of this Graphics object prior to the invocation of the method. All rendering operations modify only pixels which lie within the area bounded by both the current clip of the graphics context and the extents of the Component used to create the Graphics object.

Graphics()

Constructs a new Graphics object.

clearRect(int, int, int, int)

Clears the specified rectangle by filling it with the background color of the current drawing surface.

clipRect(int, int, int, int)

Intersects the current clip with the specified rectangle.

copyArea(int, int, int, int, int, int)

Copies an area of the Component by a distance specified by dx and dy to the right and down.

create()

Creates a new Graphics object that is a copy of this Graphics object.

create(int, int, int, int)

Creates a new Graphics object based on this Graphics object, but with a new translation and clip area.

dispose()

Dispose of the system resources used by this graphics context.

draw3DRect(int, int, int, int, boolean)

Draws a 3-D highlighted outline of the specified rectangle.

drawArc(int, int, int, int, int, int)

Draws the outline of an arc covering the specified rectangle, starting at startAngle and extending for arcAngle degrees, using the current color.

drawBytes(byte[], int, int, int, int)

Draws the specified bytes using the current font and color.

drawChars(char[], int, int, int, int)

Draws the specified characters using the current font and color.

drawImage(Image, int, int, Color, ImageObserver)

Draws as much of the specified image as is currently available at the specified coordinate (x, y) with the given solid background color.

drawImage(Image, int, int, ImageObserver)

Draws as much of the specified image as is currently available at the specified coordinate (x, y).

drawImage(Image, int, int, int, int, Color, ImageObserver)

Draws as much of the specified image as has already been scaled to fit inside the specified rectangle with the given solid background color.

drawImage(Image, int, int, int, int, ImageObserver)

Draws as much of the specified image as has already been scaled to fit inside the specified rectangle.

drawImage(Image, int, int, int, int, int, int, int, int, Color, ImageObserver)

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 with the given solid background color.

drawImage(Image, int, int, int, int, int, int, int, int, ImageObserver)

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.

drawLine(int, int, int, int)

Draws a line between the coordinates (x1,y1) and (x2,y2) using the current color.

drawOval(int, int, int, int)

Draws the outline of an oval covering the specified rectangle using the current color.

drawPolygon(int[], int[], int)

Draws the outline of a polygon defined by arrays of x coordinates and y coordinates using the current color.

drawPolygon(Polygon)

Draws the outline of a polygon defined by the specified Polygon object using the current color.

drawPolyline(int[], int[], int)

Draws a sequence of connected lines defined by arrays of x coordinates and y coordinates using the current color.

drawRect(int, int, int, int)

Draws the outline of the specified rectangle using the current color.

drawRoundRect(int, int, int, int, int, int)

Draws the outline of the specified rounded corner rectangle using the current color.

drawString(String, int, int)

Draws the specified String using the current font and color.

fill3DRect(int, int, int, int, boolean)

Paints a 3-D highlighted rectangle filled with the current color.

fillArc(int, int, int, int, int, int)

Fills an arc bounded by the specified rectangle, starting at startAngle and extending for arcAngle degrees, with the current color.

fillOval(int, int, int, int)

Fills an oval bounded by the specified rectangle with the current color.

fillPolygon(int[], int[], int)

Fills a polygon defined by arrays of x coordinates and y coordinates with the current color using an even-odd fill rule (otherwise known as an alternating rule).

fillPolygon(Polygon)

Fills the polygon defined by the specified Polygon object with the current color using an even-odd fill rule (otherwise known as an alternating rule).

fillRect(int, int, int, int)

Fills the specified rectangle with the current color.

fillRoundRect(int, int, int, int, int, int)

Fills the specified rounded corner rectangle with the current color.

finalize()

Disposes of this graphics context once it is no longer referenced.

getClip()

Return a Shape object representing the current clipping area.

getClipBounds()

Returns the bounding rectangle of the current clipping area.

getClipRect()

Deprecated.

getColor()

Gets the current color.

getFont()

Gets the current font.

getFontMetrics()

Gets the font metrics of the current font.

getFontMetrics(Font)

Gets the font metrics for the specified font.

setClip(int, int, int, int)

Sets the current clip to the rectangle specified by the given coordinates.

setClip(Shape)

Set the current clipping area to an arbitrary clip shape.

setColor(Color)

Sets the current color to the specified color.

setFont(Font)

Sets the font for all subsequent text rendering operations.

setPaintMode()

Sets the logical pixel operation function to the Paint, or overwrite mode.

setXORMode(Color)

Sets the logical pixel operation function to the XOR mode, which alternates pixels between the current color and a new specified XOR alternation color.

toString()

Returns a String object representing this Graphics object's value.

translate(int, int)

Translates the origin of the graphics context to the point (x, y) in the current coordinate system.

 protected Graphics()

Constructs a new Graphics object. Since Graphics is an abstract class, and since it must be customized by subclasses for different output devices, Graphics objects cannot be created directly. Instead, Graphics objects must be obtained from another Graphics object or created by a Component.

See Also:

getGraphics, create

 public abstract Graphics create()

Creates a new Graphics object that is a copy of this Graphics object.

 public Graphics create(int x,
                        int y,
                        int width,
                        int height)

Creates a new Graphics object based on this Graphics object, but with a new translation and clip area. The new Graphics object will have its origin translated to the specified coordinate (x, y) and will also have its current clip intersected with the specified rectangle. The arguments are all interpreted in the coordinate system of the original Graphics object.

Parameters:

x - the x coordinate of the new translation origin and rectangle to intersect the clip with

y - the y coordinate of the new translation origin and rectangle to intersect the clip with

width - the width of the rectangle to intersect the clip with

height - the height of the rectangle to intersect the clip with

See Also:

translate, clipRect

 public abstract void translate(int x,
                                int y)

Translates the origin of the graphics context to the point (x, y) in the current coordinate system. All coordinates used in subsequent rendering operations on this graphics context will be relative to this new origin.

Parameters:

x - the x coordinate of the new translation origin

y - the y coordinate of the new translation origin

 public abstract Color getColor()

Gets the current color.

See Also:

Color, setColor

 public abstract void setColor(Color c)

Sets the current color to the specified color. All subsequent rendering operations will use this specified color.

Parameters:

c - the new rendering color

See Also:

Color, getColor

 public abstract void setPaintMode()

Sets the logical pixel operation function to the Paint, or overwrite mode. All subsequent rendering operations will overwrite the destination with the current color.

 public abstract void setXORMode(Color c1)

Sets the logical pixel operation function to the XOR mode, which alternates pixels between the current color and a new specified XOR alternation color. When subsequent rendering operations are performed on top of pixels which are the specified XOR alternation color, they will be changed to the current color and vice versa. Drawing an image on a region of pixels of the specified XOR alternation color will also change those pixels to the colors in the image. Drawing on pixels of other colors will not necessarily result in a predictable final color but all rendering operations will always be reversible in this mode; if you draw the same figure twice then all pixels will be restored to their original values.

Parameters:

c1 - the XOR alternation color

 public abstract Font getFont()

Gets the current font.

See Also:

Font, setFont

 public abstract void setFont(Font font)

Sets the font for all subsequent text rendering operations.

Parameters:

font - the specified font

See Also:

Font, getFont, drawString, drawBytes, drawChars

 public FontMetrics getFontMetrics()

Gets the font metrics of the current font.

See Also:

getFont

 public abstract FontMetrics getFontMetrics(Font f)

Gets the font metrics for the specified font.

Parameters:

f - the specified font

See Also:

getFont, getFontMetrics

 public abstract Rectangle getClipBounds()

Returns the bounding rectangle of the current clipping area. The coordinates in the rectangle are relative to the coordinate system origin of this graphics context.

See Also:

getClip, clipRect, setClip, setClip

 public abstract void clipRect(int x,
                               int y,
                               int width,
                               int height)

Intersects the current clip with the specified rectangle. The resulting clipping area is the intersection of the current clipping area and the specified rectangle. This method can only be used to make the current clip smaller. To set the current clip larger, use any of the setClip methods. Rendering operations have no effect outside of the clipping area.

Parameters:

x - the x coordinate of the rectangle to intersect the clip with

y - the y coordinate of the rectangle to intersect the clip with

width - the width of the rectangle to intersect the clip with

height - the height of the rectangle to intersect the clip with

See Also:

setClip, setClip

 public abstract void setClip(int x,
                              int y,
                              int width,
                              int height)

Sets the current clip to the rectangle specified by the given coordinates. Rendering operations have no effect outside of the clipping area.

Parameters:

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

See Also:

clipRect, setClip

 public abstract Shape getClip()

Return a Shape object representing the current clipping area.

See Also:

getClipBounds, clipRect, setClip, setClip

 public abstract void setClip(Shape clip)

Set the current clipping area to an arbitrary clip shape. Not all objects which implement the Shape interface can be used to set the clip. The only Shape objects which are guaranteed to be supported are Shape objects which are obtained from the getClip() method and Rectangle objects.

See Also:

getClip, clipRect, setClip

 public abstract void copyArea(int x,
                               int y,
                               int width,
                               int height,
                               int dx,
                               int dy)

Copies an area of the Component by a distance specified by dx and dy to the right and down. To copy a portion of the Component to the left or upwards, specify a negative distance for either dx or dy. If a portion of the source rectangle to be copied lies outside of the bounds of the Component or is obscured by another Component or window, the damage resulting from not being able to copy the associated pixels will be repaired by a call to the paint method of the Component.

Parameters:

x - the x coordinate of the source rectangle

y - the y coordinate of the source rectangle

width - the width of the source rectangle

height - the height of the source rectangle

dx - the horizontal distance to copy the pixels to the right

dy - the vertical distance to copy the pixels downward

 public abstract void drawLine(int x1,
                               int y1,
                               int x2,
                               int y2)

Draws a line between the coordinates (x1,y1) and (x2,y2) using the current color.

Parameters:

x1 - the x coordinate of the start of the line

y1 - the y coordinate of the start of the line

x2 - the x coordinate of the end of the line

y2 - the y coordinate of the end of the line

 public abstract void fillRect(int x,
                               int y,
                               int width,
                               int height)

Fills the specified rectangle with the current color.

Parameters:

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

See Also:

drawRect, clearRect

 public void drawRect(int x,
                      int y,
                      int width,
                      int height)

Draws the outline of the specified rectangle using the current color. The resulting rectangle will cover an area (width + 1) pixels wide by (height + 1) pixels tall.

Parameters:

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

See Also:

fillRect, clearRect

 public abstract 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.

Parameters:

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

See Also:

fillRect, drawRect

 public abstract void drawRoundRect(int x,
                                    int y,
                                    int width,
                                    int height,
                                    int arcWidth,
                                    int arcHeight)

Draws the outline of the specified rounded corner rectangle using the current color. The resulting rectangle will cover an area (width + 1) pixels wide by (height + 1) pixels tall.

Parameters:

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

See Also:

fillRoundRect

 public abstract void fillRoundRect(int x,
                                    int y,
                                    int width,
                                    int height,
                                    int arcWidth,
                                    int arcHeight)

Fills the specified rounded corner rectangle with the current color.

Parameters:

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

See Also:

drawRoundRect

 public void draw3DRect(int x,
                        int y,
                        int width,
                        int height,
                        boolean raised)

Draws a 3-D highlighted outline of the specified rectangle. The edges of the rectangle will be highlighted so that it appears as if the edges were beveled and lit from the upper left corner. The colors used for the highlighting effect will be determined from the current color. The resulting rectangle will cover an area (width + 1) pixels wide by (height + 1) pixels tall.

Parameters:

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

raised - a boolean that determines whether the rectangle appears to be raised above the surface or sunk into the surface

See Also:

brighter, darker

 public void fill3DRect(int x,
                        int y,
                        int width,
                        int height,
                        boolean raised)

Paints a 3-D highlighted rectangle filled with the current color. The edges of the rectangle will be highlighted so that it appears as if the edges were beveled and lit from the upper left corner. The colors used for the highlighting effect will be determined from the current color.

Parameters:

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

raised - a boolean that determines whether the rectangle appears to be raised above the surface or sunk into the surface

See Also:

brighter, darker

 public abstract void drawOval(int x,
                               int y,
                               int width,
                               int height)

Draws the outline of an oval covering the specified rectangle using the current color. The resulting oval will cover an area (width + 1) pixels wide by (height + 1) pixels tall.

Parameters:

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

See Also:

fillOval

 public abstract void fillOval(int x,
                               int y,
                               int width,
                               int height)

Fills an oval bounded by the specified rectangle with the current color.

Parameters:

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

See Also:

drawOval

 public abstract void drawArc(int x,
                              int y,
                              int width,
                              int height,
                              int startAngle,
                              int arcAngle)

Draws the outline of an arc covering the specified rectangle, starting at startAngle and extending for arcAngle degrees, using the current color. The angles are interpreted such that 0 degrees is at the 3-o'clock position, and positive values indicate counter-clockwise rotations while negative values indicate clockwise rotations. The resulting arc will cover an area (width + 1) pixels wide by (height + 1) pixels tall.

Parameters:

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 startAngle)

See Also:

fillArc

 public abstract void fillArc(int x,
                              int y,
                              int width,
                              int height,
                              int startAngle,
                              int arcAngle)

Fills an arc bounded by the specified rectangle, starting at startAngle and extending for arcAngle degrees, with the current color. This method generates a pie shape. The angles are interpreted such that 0 degrees is at the 3-o'clock position, and positive values indicate counter-clockwise rotations while negative values indicate clockwise rotations.

Parameters:

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 startAngle).

See Also:

drawArc

 public abstract void drawPolyline(int xPoints[],
                                   int yPoints[],
                                   int nPoints)

Draws a sequence of connected lines defined by arrays of x coordinates and y coordinates using the current color. The figure is not automatically closed if the first coordinate is different from the last coordinate.

Parameters:

xPoints - an array of x points

yPoints - an array of y points

nPoints - the total number of points

See Also:

drawPolygon

 public abstract void drawPolygon(int xPoints[],
                                  int yPoints[],
                                  int nPoints)

Draws the outline of a polygon defined by arrays of x coordinates and y coordinates using the current color. The figure is automatically closed by drawing a line connecting the first coordinate to the last if they are different.

Parameters:

xPoints - an array of x points

yPoints - an array of y points

nPoints - the total number of points

See Also:

drawPolyline, fillPolygon

 public void drawPolygon(Polygon p)

Draws the outline of a polygon defined by the specified Polygon object using the current color.

Parameters:

p - the Polygon object to outline

See Also:

fillPolygon

 public abstract void fillPolygon(int xPoints[],
                                  int yPoints[],
                                  int nPoints)

Fills a polygon defined by arrays of x coordinates and y coordinates with the current color using an even-odd fill rule (otherwise known as an alternating rule).

Parameters:

xPoints - an array of x points

yPoints - an array of y points

nPoints - the total number of points

See Also:

drawPolygon

 public void fillPolygon(Polygon p)

Fills the polygon defined by the specified Polygon object with the current color using an even-odd fill rule (otherwise known as an alternating rule).

Parameters:

p - the Polygon object to fill

See Also:

drawPolygon

 public abstract void drawString(String str,
                                 int x,
                                 int y)

Draws the specified String using the current font and color. The x,y position is the starting point of the baseline of the String.

Parameters:

str - the String to be drawn

x - the x coordinate of the baseline of the text

y - the y coordinate of the baseline of the text

See Also:

drawChars, drawBytes

 public void drawChars(char data[],
                       int offset,
                       int length,
                       int x,
                       int y)

Draws the specified characters using the current font and color.

Parameters:

data - the array of characters to be drawn

offset - the start offset in the data

length - the number of characters to be drawn

x - the x coordinate of the baseline of the text

y - the y coordinate of the baseline of the text

See Also:

drawString, drawBytes

 public void drawBytes(byte data[],
                       int offset,
                       int length,
                       int x,
                       int y)

Draws the specified bytes using the current font and color.

Parameters:

data - the data to be drawn

offset - the start offset in the data

length - the number of bytes that are drawn

x - the x coordinate of the baseline of the text

y - the y coordinate of the baseline of the text

See Also:

drawString, drawChars

 public abstract boolean drawImage(Image img,
                                   int x,
                                   int y,
                                   ImageObserver observer)

Draws as much of the specified image as is currently available at the specified coordinate (x, y). This method will return 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 the method will return false and the indicated ImageObserver object will be notified as the conversion process progresses.

Parameters:

img - the specified image to be drawn

x - the x coordinate

y - the y coordinate

observer - object to be notified as more of the image is converted

See Also:

Image, ImageObserver

 public abstract boolean drawImage(Image img,
                                   int x,
                                   int y,
                                   int width,
                                   int height,
                                   ImageObserver observer)

Draws as much of the specified image as has already been scaled to fit inside the specified rectangle. This method will return 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 the method will return false and the indicated ImageObserver object will be notified as the conversion process progresses.

Note that a scaled version of an image will not necessarily be immediately available 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.

Parameters:

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

observer - object to be notified as more of the image is scaled and converted

See Also:

Image, ImageObserver

 public abstract boolean drawImage(Image img,
                                   int x,
                                   int y,
                                   Color bgcolor,
                                   ImageObserver observer)

Draws as much of the specified image as is currently available at the specified coordinate (x, y) with the given solid background color. This operation should be 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 will return 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 the method will return false and the indicated ImageObserver object will be notified as the conversion process progresses.

Parameters:

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

See Also:

Image, ImageObserver

 public abstract boolean drawImage(Image img,
                                   int x,
                                   int y,
                                   int width,
                                   int height,
                                   Color bgcolor,
                                   ImageObserver observer)

Draws as much of the specified image as has already been scaled to fit inside the specified rectangle with the given solid background color. This operation should be equivalent to filling a rectangle of the specified width and height with the given color and then drawing the image on top of it, but possibly more efficient. This method will return 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 the method will return false and the indicated ImageObserver object will be notified as the conversion process progresses.

Note that a scaled version of an image will not necessarily be immediately available 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.

Parameters:

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 scaled and converted

See Also:

Image, ImageObserver

 public abstract boolean drawImage(Image img,
                                   int dx1,
                                   int dy1,
                                   int dx2,
                                   int dy2,
                                   int sx1,
                                   int sy1,
                                   int sx2,
                                   int sy2,
                                   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. This method will return immediately in all cases, even if the entire area of the specified image has not yet been scaled, dithered and converted for the current output device. If the current output representation is not yet complete then the method will return false and the indicated ImageObserver object will be notified as the conversion process progresses.

This method will always use the unscaled version of the image to render the scaled rectangle and will perform the required scaling on the fly. It will not use a cached scaled version of the image for this operation. The scaling 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.

Parameters:

img - the specified image to be drawn

dx1 - 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

See Also:

Image, ImageObserver

 public abstract boolean drawImage(Image img,
                                   int dx1,
                                   int dy1,
                                   int dx2,
                                   int dy2,
                                   int sx1,
                                   int sy1,
                                   int sx2,
                                   int sy2,
                                   Color bgcolor,
                                   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 with the given solid background color. This operation should be equivalent to filling a rectangle of the specified width and height with the given color and then drawing the image on top of it, but possibly more efficient. This method will return immediately in all cases, even if the entire area of the specified image has not yet been scaled, dithered and converted for the current output device. If the current output representation is not yet complete then the method will return false and the indicated ImageObserver object will be notified as the conversion process progresses.

This method will always use the unscaled version of the image to render the scaled rectangle and will perform the required scaling on the fly. It will not use a cached scaled version of the image for this operation. The scaling 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.

Parameters:

img - the specified image to be drawn

dx1 - 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

See Also:

Image, ImageObserver

 public abstract void dispose()

Dispose of the system resources used by this graphics context. The Graphics context cannot be used after being disposed of. While the finalization process of the garbage collector will also dispose of the same system resources, due to the number of Graphics objects that can be created in short time frames it is preferable to manually free the associated resources using this method rather than to rely on a finalization process which may not happen for a long period of time.

Graphics objects which are provided as arguments to the paint and update methods of Components are automatically disposed by the system when those methods return. Programmers should, for efficiency, call the dispose method when finished using a Graphics object only if it was created directly from a Component or another Graphics object.

See Also:

finalize, paint, update, getGraphics, create

 public void finalize()

Disposes of this graphics context once it is no longer referenced.

Overrides:

finalize in class Object

See Also:

dispose

 public String toString()

Returns a String object representing this Graphics object's value.

Overrides:

toString in class Object

 public Rectangle getClipRect()

Note: getClipRect() is deprecated. As of JDK version 1.1, replaced by getClipBounds().

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