com.bogdwellers.pinchtozoom

Class MatrixCorrector

java.lang.Object

com.bogdwellers.pinchtozoom.MatrixCorrector

Direct Known Subclasses:

ImageMatrixCorrector

public abstract class MatrixCorrector
extends java.lang.Object

The MatrixCorrector enforces boundaries in the transformation of a Matrix.

Constructor Summary

Constructors

Constructor and Description
MatrixCorrector()
MatrixCorrector(android.graphics.Matrix matrix)

Method Summary

Modifier and Type	Method and Description
float	correctAbsolute(int vector, float x) * Returns the corrected value of the given absolute vector.
float	correctRelative(int vector, float x) Returns the corrected value of the given relative vector.
android.graphics.Matrix	getMatrix() * Returns the matrix.
protected float[]	getValues() * * Returns the matrix values.
void	performAbsoluteCorrections() Does corrections AFTER matrix operations have been applied.
void	setMatrix(android.graphics.Matrix matrix) * * Sets the matrix.

Methods inherited from class java.lang.Object

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

Constructor Detail

MatrixCorrector

public MatrixCorrector()

MatrixCorrector

public MatrixCorrector(android.graphics.Matrix matrix)

Method Detail

performAbsoluteCorrections

public void performAbsoluteCorrections()

Does corrections AFTER matrix operations have been applied.

This implementation only copies the values of the matrix into its float array values.

correctRelative

public float correctRelative(int vector,
                             float x)

Returns the corrected value of the given relative vector.

Parameters:

vector -

x -

Returns:

correctAbsolute

public float correctAbsolute(int vector,
                             float x)

*

Returns the corrected value of the given absolute vector.

Parameters:

vector -

x -

Returns:

getMatrix

public android.graphics.Matrix getMatrix()

*

Returns the matrix.

Returns:

setMatrix

public void setMatrix(android.graphics.Matrix matrix)

* *

Sets the matrix.

Parameters:

matrix -

getValues

protected float[] getValues()

* *

Returns the matrix values.

Returns: