DebugGraphics

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javax.swing
Class DebugGraphics

java.lang.Object   
  java.awt.Graphics   
      javax.swing.DebugGraphics

public class DebugGraphics
extends Graphics
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);

See Also:: JComponent.setDebugGraphicsOptions(int) , RepaintManager.currentManager(java.awt.Component) , RepaintManager.setDoubleBufferingEnabled(boolean)

Field Summary
`static int`	`BUFFERED_OPTION` Show buffered operations in a separate `Frame`.
`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
`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
`void`	`clearRect (int x, int y, int width, int height)` Overrides `Graphics.clearRect`.
`void`	`clipRect (int x, int y, int width, int height)` Overrides `Graphics.clipRect`.
`void`	`copyArea (int x, int y, int width, int height, int destX, int destY)` Overrides `Graphics.copyArea`.
`Graphics`	`create ()` Overrides `Graphics.create` to return a DebugGraphics object.
`Graphics`	`create (int x, int y, int width, int height)` Overrides `Graphics.create` to return a DebugGraphics object.
`void`	`dispose ()` Overrides `Graphics.dispose`.
`void`	`draw3DRect (int x, int y, int width, int height, boolean raised)` Overrides `Graphics.draw3DRect`.
`void`	`drawArc (int x, int y, int width, int height, int startAngle, int arcAngle)` Overrides `Graphics.drawArc`.
`void`	`drawBytes (byte[] data, int offset, int length, int x, int y)` Overrides `Graphics.drawBytes`.
`void`	`drawChars (char[] data, int offset, int length, int x, int y)` Overrides `Graphics.drawChars`.
`boolean`	`drawImage (Image img, int x, int y, Color bgcolor, ImageObserver observer)` Overrides `Graphics.drawImage`.
`boolean`	`drawImage (Image img, int x, int y, ImageObserver observer)` Overrides `Graphics.drawImage`.
`boolean`	`drawImage (Image img, int x, int y, int width, int height, Color bgcolor, ImageObserver observer)` Overrides `Graphics.drawImage`.
`boolean`	`drawImage (Image img, int x, int y, int width, int height, ImageObserver observer)` Overrides `Graphics.drawImage`.
`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`.
`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`.
`void`	`drawLine (int x1, int y1, int x2, int y2)` Overrides `Graphics.drawLine`.
`void`	`drawOval (int x, int y, int width, int height)` Overrides `Graphics.drawOval`.
`void`	`drawPolygon (int[] xPoints, int[] yPoints, int nPoints)` Overrides `Graphics.drawPolygon`.
`void`	`drawPolyline (int[] xPoints, int[] yPoints, int nPoints)` Overrides `Graphics.drawPolyline`.
`void`	`drawRect (int x, int y, int width, int height)` Overrides `Graphics.drawRect`.
`void`	`drawRoundRect (int x, int y, int width, int height, int arcWidth, int arcHeight)` Overrides `Graphics.drawRoundRect`.
`void`	`drawString (AttributedCharacterIterator iterator, int x, int y)` Overrides `Graphics.drawString`.
`void`	`drawString (String aString, int x, int y)` Overrides `Graphics.drawString`.
`void`	`fill3DRect (int x, int y, int width, int height, boolean raised)` Overrides `Graphics.fill3DRect`.
`void`	`fillArc (int x, int y, int width, int height, int startAngle, int arcAngle)` Overrides `Graphics.fillArc`.
`void`	`fillOval (int x, int y, int width, int height)` Overrides `Graphics.fillOval`.
`void`	`fillPolygon (int[] xPoints, int[] yPoints, int nPoints)` Overrides `Graphics.fillPolygon`.
`void`	`fillRect (int x, int y, int width, int height)` Overrides `Graphics.fillRect`.
`void`	`fillRoundRect (int x, int y, int width, int height, int arcWidth, int arcHeight)` Overrides `Graphics.fillRoundRect`.
`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 `Graphics.getClip`.
`Rectangle`	`getClipBounds ()` Overrides `Graphics.getClipBounds`.
`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 `Graphics.getFontMetrics`.
`FontMetrics`	`getFontMetrics (Font f)` Overrides `Graphics.getFontMetrics`.
`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 `Graphics.setClip`.
`void`	`setClip (Shape clip)` Overrides `Graphics.setClip`.
`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 `Graphics.setPaintMode`.
`void`	`setXORMode (Color aColor)` Overrides `Graphics.setXORMode`.
`void`	`translate (int x, int y)` Overrides `Graphics.translate`.

Methods inherited from class java.awt.Graphics
`drawPolygon , fillPolygon , finalize , getClipBounds , getClipRect , hitClip , toString`

Methods inherited from 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 class Graphics

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 class Graphics

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.

flashColor

public static Color    flashColor()

Returns the Color used to flash drawing operations.

See Also:: setFlashColor(java.awt.Color)

javax.swing Class DebugGraphics

LOG_OPTION

FLASH_OPTION

BUFFERED_OPTION

NONE_OPTION

DebugGraphics

DebugGraphics

DebugGraphics

create

create

setFlashColor

flashColor

setFlashTime

javax.swing
Class DebugGraphics