Class DebugGraphics
- java.lang.Object
-
- java.awt.Graphics
-
- javax.swing.DebugGraphics
public class DebugGraphics extends Graphics
Graphics subclass supporting graphics debugging. Overrides most methods from Graphics. DebugGraphics objects are rarely created by hand. They are most frequently created automatically when a JComponent's debugGraphicsOptions are changed using the setDebugGraphicsOptions() method.
NOTE: You must turn off double buffering to use DebugGraphics: RepaintManager repaintManager = RepaintManager.currentManager(component); repaintManager.setDoubleBufferingEnabled(false);
- Since:
- 1.2
- See Also:
-
JComponent.setDebugGraphicsOptions(int)
,RepaintManager.currentManager(java.awt.Component)
,RepaintManager.setDoubleBufferingEnabled(boolean)
Field Summary
Modifier and Type | Field | Description |
---|---|---|
static int | BUFFERED_OPTION | Show buffered operations in a separate |
static int | FLASH_OPTION | Flash graphics operations. |
static int | LOG_OPTION | Log graphics operations. |
static int | NONE_OPTION | Don't debug graphics operations. |
Constructor Summary
Constructor | Description |
---|---|
DebugGraphics() | Constructs a new debug graphics context that supports slowed down drawing. |
DebugGraphics(Graphics graphics) | Constructs a debug graphics context from an existing graphics context that supports slowed down drawing. |
DebugGraphics(Graphics graphics,
JComponent component) | Constructs a debug graphics context from an existing graphics context that slows down drawing for the specified component. |
Method Summary
Modifier and Type | Method | Description |
---|---|---|
void | clearRect(int x,
int y,
int width,
int height) | Overrides |
void | clipRect(int x,
int y,
int width,
int height) | Overrides |
void | copyArea(int x,
int y,
int width,
int height,
int destX,
int destY) | Overrides |
Graphics | create() | Overrides |
Graphics | create(int x,
int y,
int width,
int height) | Overrides |
void | dispose() | Overrides |
void | draw3DRect(int x,
int y,
int width,
int height,
boolean raised) | Overrides |
void | drawArc(int x,
int y,
int width,
int height,
int startAngle,
int arcAngle) | Overrides |
void | drawBytes(byte[] data,
int offset,
int length,
int x,
int y) | Overrides |
void | drawChars(char[] data,
int offset,
int length,
int x,
int y) | Overrides |
boolean | drawImage(Image img,
int dx1,
int dy1,
int dx2,
int dy2,
int sx1,
int sy1,
int sx2,
int sy2,
Color bgcolor,
ImageObserver observer) | Overrides |
boolean | drawImage(Image img,
int dx1,
int dy1,
int dx2,
int dy2,
int sx1,
int sy1,
int sx2,
int sy2,
ImageObserver observer) | Overrides |
boolean | drawImage(Image img,
int x,
int y,
int width,
int height,
Color bgcolor,
ImageObserver observer) | Overrides |
boolean | drawImage(Image img,
int x,
int y,
int width,
int height,
ImageObserver observer) | Overrides |
boolean | drawImage(Image img,
int x,
int y,
Color bgcolor,
ImageObserver observer) | Overrides |
boolean | drawImage(Image img,
int x,
int y,
ImageObserver observer) | Overrides |
void | drawLine(int x1,
int y1,
int x2,
int y2) | Overrides |
void | drawOval(int x,
int y,
int width,
int height) | Overrides |
void | drawPolygon(int[] xPoints,
int[] yPoints,
int nPoints) | Overrides |
void | drawPolyline(int[] xPoints,
int[] yPoints,
int nPoints) | Overrides |
void | drawRect(int x,
int y,
int width,
int height) | Overrides |
void | drawRoundRect(int x,
int y,
int width,
int height,
int arcWidth,
int arcHeight) | Overrides |
void | drawString(String aString,
int x,
int y) | Overrides |
void | drawString(AttributedCharacterIterator iterator,
int x,
int y) | Overrides |
void | fill3DRect(int x,
int y,
int width,
int height,
boolean raised) | Overrides |
void | fillArc(int x,
int y,
int width,
int height,
int startAngle,
int arcAngle) | Overrides |
void | fillOval(int x,
int y,
int width,
int height) | Overrides |
void | fillPolygon(int[] xPoints,
int[] yPoints,
int nPoints) | Overrides |
void | fillRect(int x,
int y,
int width,
int height) | Overrides |
void | fillRoundRect(int x,
int y,
int width,
int height,
int arcWidth,
int arcHeight) | Overrides |
static Color | flashColor() | Returns the Color used to flash drawing operations. |
static int | flashCount() | Returns the number of times that drawing operations will flash. |
static int | flashTime() | Returns the time delay of drawing operation flashing. |
Shape | getClip() | Overrides |
Rectangle | getClipBounds() | Overrides |
Color | getColor() | Returns the Color used for text drawing operations. |
int | getDebugOptions() | Returns the current debugging options for this DebugGraphics. |
Font | getFont() | Returns the Font used for text drawing operations. |
FontMetrics | getFontMetrics() | Overrides |
FontMetrics | getFontMetrics(Font f) | Overrides |
boolean | isDrawingBuffer() | Returns the drawingBuffer value. |
static PrintStream | logStream() | Returns the stream to which the DebugGraphics logs drawing operations. |
void | setClip(int x,
int y,
int width,
int height) | Overrides |
void | setClip(Shape clip) | Overrides |
void | setColor(Color aColor) | Sets the color to be used for drawing and filling lines and shapes. |
void | setDebugOptions(int options) | Enables/disables diagnostic information about every graphics operation. |
static void | setFlashColor(Color flashColor) | Sets the Color used to flash drawing operations. |
static void | setFlashCount(int flashCount) | Sets the number of times that drawing operations will flash. |
static void | setFlashTime(int flashTime) | Sets the time delay of drawing operation flashing. |
void | setFont(Font aFont) | Sets the Font used for text drawing operations. |
static void | setLogStream(PrintStream stream) | Sets the stream to which the DebugGraphics logs drawing operations. |
void | setPaintMode() | Overrides |
void | setXORMode(Color aColor) | Overrides |
void | translate(int x,
int y) | Overrides |
Methods declared in class java.awt.Graphics
drawPolygon, fillPolygon, finalize, getClipBounds, getClipRect, hitClip, toString
Methods declared in class java.lang.Object
clone, equals, getClass, hashCode, notify, notifyAll, wait, wait, wait
Field Detail
LOG_OPTION
public static final int LOG_OPTION
Log graphics operations.
- See Also:
- Constant Field Values
FLASH_OPTION
public static final int FLASH_OPTION
Flash graphics operations.
- See Also:
- Constant Field Values
BUFFERED_OPTION
public static final int BUFFERED_OPTION
Show buffered operations in a separate Frame
.
- See Also:
- Constant Field Values
NONE_OPTION
public static final int NONE_OPTION
Don't debug graphics operations.
- See Also:
- Constant Field Values
Constructor Detail
DebugGraphics
public DebugGraphics()
Constructs a new debug graphics context that supports slowed down drawing.
DebugGraphics
public DebugGraphics(Graphics graphics, JComponent component)
Constructs a debug graphics context from an existing graphics context that slows down drawing for the specified component.
- Parameters:
-
graphics
- the Graphics context to slow down -
component
- the JComponent to draw slowly
DebugGraphics
public DebugGraphics(Graphics graphics)
Constructs a debug graphics context from an existing graphics context that supports slowed down drawing.
- Parameters:
-
graphics
- the Graphics context to slow down
Method Detail
create
public Graphics create()
Overrides Graphics.create
to return a DebugGraphics object.
- Specified by:
-
create
in classGraphics
- Returns:
- a new graphics context that is a copy of this graphics context.
create
public Graphics create(int x, int y, int width, int height)
Overrides Graphics.create
to return a DebugGraphics object.
- Overrides:
-
create
in classGraphics
- Parameters:
-
x
- the x coordinate. -
y
- the y coordinate. -
width
- the width of the clipping rectangle. -
height
- the height of the clipping rectangle. - Returns:
- a new graphics context.
- See Also:
-
Graphics.translate(int, int)
,Graphics.clipRect(int, int, int, int)
setFlashColor
public static void setFlashColor(Color flashColor)
Sets the Color used to flash drawing operations.
- Parameters:
-
flashColor
- the Color used to flash drawing operations
flashColor
public static Color flashColor()
Returns the Color used to flash drawing operations.
- Returns:
- the Color used to flash drawing operations
- See Also:
setFlashColor(java.awt.Color)
setFlashTime
public static void setFlashTime(int flashTime)
Sets the time delay of drawing operation flashing.
- Parameters:
-
flashTime
- the time delay of drawing operation flashing
flashTime
public static int flashTime()
Returns the time delay of drawing operation flashing.
- Returns:
- the time delay of drawing operation flashing
- See Also:
setFlashTime(int)
setFlashCount
public static void setFlashCount(int flashCount)
Sets the number of times that drawing operations will flash.
- Parameters:
-
flashCount
- number of times that drawing operations will flash
flashCount
public static int flashCount()
Returns the number of times that drawing operations will flash.
- Returns:
- the number of times that drawing operations will flash
- See Also:
setFlashCount(int)
setLogStream
public static void setLogStream(PrintStream stream)
Sets the stream to which the DebugGraphics logs drawing operations.
- Parameters:
-
stream
- the stream to which the DebugGraphics logs drawing operations
logStream
public static PrintStream logStream()
Returns the stream to which the DebugGraphics logs drawing operations.
- Returns:
- the stream to which the DebugGraphics logs drawing operations
- See Also:
setLogStream(java.io.PrintStream)
setFont
public void setFont(Font aFont)
Sets the Font used for text drawing operations.
- Specified by:
-
setFont
in classGraphics
- Parameters:
-
aFont
- the font. - See Also:
-
Graphics.getFont()
,Graphics.drawString(java.lang.String, int, int)
,Graphics.drawBytes(byte[], int, int, int, int)
,Graphics.drawChars(char[], int, int, int, int)
getFont
public Font getFont()
Returns the Font used for text drawing operations.
- Specified by:
-
getFont
in classGraphics
- Returns:
- this graphics context's current font.
- See Also:
setFont(java.awt.Font)
setColor
public void setColor(Color aColor)
Sets the color to be used for drawing and filling lines and shapes.
- Specified by:
-
setColor
in classGraphics
- Parameters:
-
aColor
- the new rendering color. - See Also:
-
Color
,Graphics.getColor()
getColor
public Color getColor()
Returns the Color used for text drawing operations.
- Specified by:
-
getColor
in classGraphics
- Returns:
- this graphics context's current color.
- See Also:
setColor(java.awt.Color)
getFontMetrics
public FontMetrics getFontMetrics()
Overrides Graphics.getFontMetrics
.
- Overrides:
-
getFontMetrics
in classGraphics
- Returns:
- the font metrics of this graphics context's current font.
- See Also:
-
Graphics.getFont()
,FontMetrics
,Graphics.getFontMetrics(Font)
getFontMetrics
public FontMetrics getFontMetrics(Font f)
Overrides Graphics.getFontMetrics
.
- Specified by:
-
getFontMetrics
in classGraphics
- Parameters:
-
f
- the specified font - Returns:
- the font metrics for the specified font.
- See Also:
-
Graphics.getFont()
,FontMetrics
,Graphics.getFontMetrics()
translate
public void translate(int x, int y)
Overrides Graphics.translate
.
setPaintMode
public void setPaintMode()
Overrides Graphics.setPaintMode
.
- Specified by:
-
setPaintMode
in classGraphics
setXORMode
public void setXORMode(Color aColor)
Overrides Graphics.setXORMode
.
- Specified by:
-
setXORMode
in classGraphics
- Parameters:
-
aColor
- the XOR alternation color
getClipBounds
public Rectangle getClipBounds()
Overrides Graphics.getClipBounds
.
- Specified by:
-
getClipBounds
in classGraphics
- Returns:
- the bounding rectangle of the current clipping area, or
null
if no clip is set. - See Also:
-
Graphics.getClip()
,Graphics.clipRect(int, int, int, int)
,Graphics.setClip(int, int, int, int)
,Graphics.setClip(Shape)
clipRect
public void clipRect(int x, int y, int width, int height)
Overrides Graphics.clipRect
.
- Specified by:
-
clipRect
in classGraphics
- 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:
-
Graphics.setClip(int, int, int, int)
,Graphics.setClip(Shape)
setClip
public void setClip(int x, int y, int width, int height)
Overrides Graphics.setClip
.
- Specified by:
-
setClip
in classGraphics
- 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:
-
Graphics.clipRect(int, int, int, int)
,Graphics.setClip(Shape)
,Graphics.getClip()
getClip
public Shape getClip()
Overrides Graphics.getClip
.
- Specified by:
-
getClip
in classGraphics
- Returns:
- a
Shape
object representing the current clipping area, ornull
if no clip is set. - See Also:
-
Graphics.getClipBounds()
,Graphics.clipRect(int, int, int, int)
,Graphics.setClip(int, int, int, int)
,Graphics.setClip(Shape)
setClip
public void setClip(Shape clip)
Overrides Graphics.setClip
.
- Specified by:
-
setClip
in classGraphics
- Parameters:
-
clip
- theShape
to use to set the clip - See Also:
-
Graphics.getClip()
,Graphics.clipRect(int, int, int, int)
,Graphics.setClip(int, int, int, int)
drawRect
public void drawRect(int x, int y, int width, int height)
Overrides Graphics.drawRect
.
- Overrides:
-
drawRect
in classGraphics
- 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:
-
Graphics.fillRect(int, int, int, int)
,Graphics.clearRect(int, int, int, int)
fillRect
public void fillRect(int x, int y, int width, int height)
Overrides Graphics.fillRect
.
- Specified by:
-
fillRect
in classGraphics
- 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:
-
Graphics.clearRect(int, int, int, int)
,Graphics.drawRect(int, int, int, int)
clearRect
public void clearRect(int x, int y, int width, int height)
Overrides Graphics.clearRect
.
- Specified by:
-
clearRect
in classGraphics
- 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:
-
Graphics.fillRect(int, int, int, int)
,Graphics.drawRect(int, int, int, int)
,Graphics.setColor(java.awt.Color)
,Graphics.setPaintMode()
,Graphics.setXORMode(java.awt.Color)
drawRoundRect
public void drawRoundRect(int x, int y, int width, int height, int arcWidth, int arcHeight)
Overrides Graphics.drawRoundRect
.
- Specified by:
-
drawRoundRect
in classGraphics
- 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:
Graphics.fillRoundRect(int, int, int, int, int, int)
fillRoundRect
public void fillRoundRect(int x, int y, int width, int height, int arcWidth, int arcHeight)
Overrides Graphics.fillRoundRect
.
- Specified by:
-
fillRoundRect
in classGraphics
- 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:
Graphics.drawRoundRect(int, int, int, int, int, int)
drawLine
public void drawLine(int x1, int y1, int x2, int y2)
Overrides Graphics.drawLine
.
- Specified by:
-
drawLine
in classGraphics
- Parameters:
-
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.
draw3DRect
public void draw3DRect(int x, int y, int width, int height, boolean raised)
Overrides Graphics.draw3DRect
.
- Overrides:
-
draw3DRect
in classGraphics
- 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:
Graphics.fill3DRect(int, int, int, int, boolean)
fill3DRect
public void fill3DRect(int x, int y, int width, int height, boolean raised)
Overrides Graphics.fill3DRect
.
- Overrides:
-
fill3DRect
in classGraphics
- 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 value that determines whether the rectangle appears to be raised above the surface or etched into the surface. - See Also:
Graphics.draw3DRect(int, int, int, int, boolean)
drawOval
public void drawOval(int x, int y, int width, int height)
Overrides Graphics.drawOval
.
- Specified by:
-
drawOval
in classGraphics
- 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:
Graphics.fillOval(int, int, int, int)
fillOval
public void fillOval(int x, int y, int width, int height)
Overrides Graphics.fillOval
.
- Specified by:
-
fillOval
in classGraphics
- 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:
Graphics.drawOval(int, int, int, int)
drawArc
public void drawArc(int x, int y, int width, int height, int startAngle, int arcAngle)
Overrides Graphics.drawArc
.
- Specified by:
-
drawArc
in classGraphics
- 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 the start angle. - See Also:
Graphics.fillArc(int, int, int, int, int, int)
fillArc
public void fillArc(int x, int y, int width, int height, int startAngle, int arcAngle)
Overrides Graphics.fillArc
.
- Specified by:
-
fillArc
in classGraphics
- 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 the start angle. - See Also:
Graphics.drawArc(int, int, int, int, int, int)
drawPolyline
public void drawPolyline(int[] xPoints, int[] yPoints, int nPoints)
Overrides Graphics.drawPolyline
.
- Specified by:
-
drawPolyline
in classGraphics
- Parameters:
-
xPoints
- an array of x points -
yPoints
- an array of y points -
nPoints
- the total number of points - See Also:
Graphics.drawPolygon(int[], int[], int)
drawPolygon
public void drawPolygon(int[] xPoints, int[] yPoints, int nPoints)
Overrides Graphics.drawPolygon
.
- Specified by:
-
drawPolygon
in classGraphics
- Parameters:
-
xPoints
- a an array ofx
coordinates. -
yPoints
- a an array ofy
coordinates. -
nPoints
- a the total number of points. - See Also:
-
Graphics.fillPolygon(int[], int[], int)
,Graphics.drawPolyline(int[], int[], int)
fillPolygon
public void fillPolygon(int[] xPoints, int[] yPoints, int nPoints)
Overrides Graphics.fillPolygon
.
- Specified by:
-
fillPolygon
in classGraphics
- Parameters:
-
xPoints
- a an array ofx
coordinates. -
yPoints
- a an array ofy
coordinates. -
nPoints
- a the total number of points. - See Also:
Graphics.drawPolygon(int[], int[], int)
drawString
public void drawString(String aString, int x, int y)
Overrides Graphics.drawString
.
- Specified by:
-
drawString
in classGraphics
- Parameters:
-
aString
- the string to be drawn. -
x
- the x coordinate. -
y
- the y coordinate. - See Also:
-
Graphics.drawBytes(byte[], int, int, int, int)
,Graphics.drawChars(char[], int, int, int, int)
drawString
public void drawString(AttributedCharacterIterator iterator, int x, int y)
Overrides Graphics.drawString
.
- Specified by:
-
drawString
in classGraphics
- Parameters:
-
iterator
- the iterator whose text is to be drawn -
x
- the x coordinate. -
y
- the y coordinate. - See Also:
-
Graphics.drawBytes(byte[], int, int, int, int)
,Graphics.drawChars(char[], int, int, int, int)
drawBytes
public void drawBytes(byte[] data, int offset, int length, int x, int y)
Overrides Graphics.drawBytes
.
- Overrides:
-
drawBytes
in classGraphics
- 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:
-
Graphics.drawChars(char[], int, int, int, int)
,Graphics.drawString(java.lang.String, int, int)
drawChars
public void drawChars(char[] data, int offset, int length, int x, int y)
Overrides Graphics.drawChars
.
- Overrides:
-
drawChars
in classGraphics
- 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:
-
Graphics.drawBytes(byte[], int, int, int, int)
,Graphics.drawString(java.lang.String, int, int)
drawImage
public boolean drawImage(Image img, int x, int y, ImageObserver observer)
Overrides Graphics.drawImage
.
- Specified by:
-
drawImage
in classGraphics
- Parameters:
-
img
- the specified image to be drawn. This method does nothing ifimg
is null. -
x
- the x coordinate. -
y
- the y coordinate. -
observer
- object to be notified as more of the image is converted. - Returns:
-
false
if the image pixels are still changing;true
otherwise. - See Also:
-
Image
,ImageObserver
,ImageObserver.imageUpdate(java.awt.Image, int, int, int, int, int)
drawImage
public boolean drawImage(Image img, int x, int y, int width, int height, ImageObserver observer)
Overrides Graphics.drawImage
.
- Specified by:
-
drawImage
in classGraphics
- Parameters:
-
img
- the specified image to be drawn. This method does nothing ifimg
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. - Returns:
-
false
if the image pixels are still changing;true
otherwise. - See Also:
-
Image
,ImageObserver
,ImageObserver.imageUpdate(java.awt.Image, int, int, int, int, int)
drawImage
public boolean drawImage(Image img, int x, int y, Color bgcolor, ImageObserver observer)
Overrides Graphics.drawImage
.
- Specified by:
-
drawImage
in classGraphics
- Parameters:
-
img
- the specified image to be drawn. This method does nothing ifimg
is null. -
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. - Returns:
-
false
if the image pixels are still changing;true
otherwise. - See Also:
-
Image
,ImageObserver
,ImageObserver.imageUpdate(java.awt.Image, int, int, int, int, int)
drawImage
public boolean drawImage(Image img, int x, int y, int width, int height, Color bgcolor, ImageObserver observer)
Overrides Graphics.drawImage
.
- Specified by:
-
drawImage
in classGraphics
- Parameters:
-
img
- the specified image to be drawn. This method does nothing ifimg
is null. -
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. - Returns:
-
false
if the image pixels are still changing;true
otherwise. - See Also:
-
Image
,ImageObserver
,ImageObserver.imageUpdate(java.awt.Image, int, int, int, int, int)
drawImage
public boolean drawImage(Image img, int dx1, int dy1, int dx2, int dy2, int sx1, int sy1, int sx2, int sy2, ImageObserver observer)
Overrides Graphics.drawImage
.
- Specified by:
-
drawImage
in classGraphics
- Parameters:
-
img
- the specified image to be drawn. This method does nothing ifimg
is null. -
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. - Returns:
-
false
if the image pixels are still changing;true
otherwise. - See Also:
-
Image
,ImageObserver
,ImageObserver.imageUpdate(java.awt.Image, int, int, int, int, int)
drawImage
public boolean drawImage(Image img, int dx1, int dy1, int dx2, int dy2, int sx1, int sy1, int sx2, int sy2, Color bgcolor, ImageObserver observer)
Overrides Graphics.drawImage
.
- Specified by:
-
drawImage
in classGraphics
- Parameters:
-
img
- the specified image to be drawn. This method does nothing ifimg
is null. -
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. - Returns:
-
false
if the image pixels are still changing;true
otherwise. - See Also:
-
Image
,ImageObserver
,ImageObserver.imageUpdate(java.awt.Image, int, int, int, int, int)
copyArea
public void copyArea(int x, int y, int width, int height, int destX, int destY)
Overrides Graphics.copyArea
.
- Specified by:
-
copyArea
in classGraphics
- 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. -
destX
- the horizontal distance to copy the pixels. -
destY
- the vertical distance to copy the pixels.
dispose
public void dispose()
Overrides Graphics.dispose
.
- Specified by:
-
dispose
in classGraphics
- See Also:
-
Graphics.finalize()
,Component.paint(java.awt.Graphics)
,Component.update(java.awt.Graphics)
,Component.getGraphics()
,Graphics.create()
isDrawingBuffer
public boolean isDrawingBuffer()
Returns the drawingBuffer value.
- Returns:
- true if this object is drawing from a Buffer
setDebugOptions
public void setDebugOptions(int options)
Enables/disables diagnostic information about every graphics operation. The value of options indicates how this information should be displayed. LOG_OPTION causes a text message to be printed. FLASH_OPTION causes the drawing to flash several times. BUFFERED_OPTION creates a new Frame that shows each operation on an offscreen buffer. The value of options is bitwise OR'd into the current value. To disable debugging use NONE_OPTION.
- Parameters:
-
options
- indicates how diagnostic information should be displayed
getDebugOptions
public int getDebugOptions()
Returns the current debugging options for this DebugGraphics.
- Returns:
- the current debugging options for this DebugGraphics
- See Also:
setDebugOptions(int)