com.vistech.imageviewer
Class GeomManip

java.lang.Object
  |
  +--com.vistech.imageviewer.GeomManip

All Implemented Interfaces:

GeomManipController

public class GeomManip

extends java.lang.Object

implements GeomManipController

Rotates and flips images.

Version:

1.0 18 Nov 1999

Author:

Lawrence Rodrigues

Field Summary

protected java.awt.geom.AffineTransform	atx
protected int	flipMode
protected ImageManipulator	imageCanvas
protected boolean	rotateOn
protected double	rotationAngle
protected int	rotationCenterX
protected int	rotationCenterY
protected double	shearFactor
protected boolean	shearOn
protected double	shearX
protected double	shearY

Constructor Summary

GeomManip()

GeomManip(ImageManipulator imageCanvas)

Method Summary

static java.awt.geom.AffineTransform	createFlipTransform(int mode, int imageWid, int imageHt) Creates a flip transform.
void	flip(int mode) Flips the image.
int	getFlipMode() Returns the flip mode.
double	getRotationAngle() Returns the rotation angle.
double	getShearFactor() Returns the shear factor.
double	getShearFactorX()
double	getShearFactorY()
void	resetAndFlip(int mode)
void	resetAndRotate(double theta)
void	resetAndShear(double shx, double shy)
void	resetManipulation() Resets manipulation
void	rotate(double theta) Rotates the currently displayed image.
void	rotate(double theta, int rotCenterX, int rotCenterY) Rotates the currently displayed image at a specified pivot point.
void	setFlipMode(int mode) Sets the flip mode.
void	setImageManipulator(ImageManipulator imageCanvas)
void	setRotationAngle(double rotationAngle) Sets the rotation angle.
void	setShearFactor(double shearFactor) Sets the shear factor.
void	shear(double shx, double shy) Shears the currently displayed image.
void	shearIncr(double shxIncr, double shyIncr)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

atx

protected java.awt.geom.AffineTransform atx

rotationAngle

protected double rotationAngle

rotateOn

protected boolean rotateOn

rotationCenterX

protected int rotationCenterX

rotationCenterY

protected int rotationCenterY

shearOn

protected boolean shearOn

shearFactor

protected double shearFactor

shearX

protected double shearX

shearY

protected double shearY

imageCanvas

protected ImageManipulator imageCanvas

flipMode

protected int flipMode

Constructor Detail

GeomManip

public GeomManip()

GeomManip

public GeomManip(ImageManipulator imageCanvas)

Parameters:

imagecanvas - the component on which the image is drawn.

Method Detail

setImageManipulator

public void setImageManipulator(ImageManipulator imageCanvas)

Parameters:

imagecanvas - the component on which the image is drawn.

setFlipMode

public void setFlipMode(int mode)

Description copied from interface: GeomManipController

Sets the flip mode. This is a bound property . The input parameter can be one of NORMAL, LEFT_RIGHT, TOP_BOTTOM, LEFT_RIGHT_TOP_BOTTON. These constants are defined in the FlipMode class. Call to this method would reset the viewport and the image is redraw with new flip mode.

Specified by:

setFlipMode in interface GeomManipController

Following copied from interface: com.vistech.imageviewer.GeomManipController

Parameters:

flipMode - the flip mode

getFlipMode

public int getFlipMode()

Description copied from interface: GeomManipController

Returns the flip mode.

Specified by:

getFlipMode in interface GeomManipController

Following copied from interface: com.vistech.imageviewer.GeomManipController

Returns:

the current flip mode.

setShearFactor

public void setShearFactor(double shearFactor)

Description copied from interface: GeomManipController

Sets the shear factor.

Specified by:

setShearFactor in interface GeomManipController

Following copied from interface: com.vistech.imageviewer.GeomManipController

Parameters:

the - shear factor.

getShearFactor

public double getShearFactor()

Description copied from interface: GeomManipController

Returns the shear factor.

Specified by:

getShearFactor in interface GeomManipController

Following copied from interface: com.vistech.imageviewer.GeomManipController

Returns:

the current shear factor.

getShearFactorX

public double getShearFactorX()

getShearFactorY

public double getShearFactorY()

setRotationAngle

public void setRotationAngle(double rotationAngle)

Description copied from interface: GeomManipController

Sets the rotation angle.

Specified by:

setRotationAngle in interface GeomManipController

Following copied from interface: com.vistech.imageviewer.GeomManipController

Parameters:

the - rotation angle.

getRotationAngle

public double getRotationAngle()

Description copied from interface: GeomManipController

Returns the rotation angle.

Specified by:

getRotationAngle in interface GeomManipController

Following copied from interface: com.vistech.imageviewer.GeomManipController

Returns:

the current rotation angle.

rotate

public void rotate(double theta)

Description copied from interface: GeomManipController

Rotates the currently displayed image. The rotation center is the mid point of the image.

Specified by:

rotate in interface GeomManipController

Following copied from interface: com.vistech.imageviewer.GeomManipController

Parameters:

theta - the rotation angle in radians.

rotate

public void rotate(double theta,
                   int rotCenterX,
                   int rotCenterY)

Description copied from interface: GeomManipController

Rotates the currently displayed image at a specified pivot point.

Specified by:

rotate in interface GeomManipController

Following copied from interface: com.vistech.imageviewer.GeomManipController

Parameters:

theta - the rotation angle in radians.

rotCenterX - the X rotation center.

rotCenterY - the Y rotation center.

resetAndRotate

public void resetAndRotate(double theta)

shear

public void shear(double shx,
                  double shy)

Description copied from interface: GeomManipController

Shears the currently displayed image.

Specified by:

shear in interface GeomManipController

Following copied from interface: com.vistech.imageviewer.GeomManipController

Parameters:

shx - the shear in the x direction.

shy - the shear in the y direction.

shearIncr

public void shearIncr(double shxIncr,
                      double shyIncr)

resetAndShear

public void resetAndShear(double shx,
                          double shy)

createFlipTransform

public static java.awt.geom.AffineTransform createFlipTransform(int mode,
                                                                int imageWid,
                                                                int imageHt)

Creates a flip transform. It first creates a reflection and then translates to the current quadrant.

Parameters:

imageWid - the width of the BufferedImage.

imageHt - the height of the BufferedImage.

flip

public void flip(int mode)

Description copied from interface: GeomManipController

Flips the image.

Specified by:

flip in interface GeomManipController

Following copied from interface: com.vistech.imageviewer.GeomManipController

Parameters:

flipMode - the flip mode. Four flip modes are: NORMAL, LEFT_RIGHT, TOP_BOTTOM, LEFT_RIGHT_TOP_BOTTOM

resetAndFlip

public void resetAndFlip(int mode)

resetManipulation

public void resetManipulation()

Description copied from interface: GeomManipController

Resets manipulation

Specified by:

resetManipulation in interface GeomManipController