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fix CanvasTransformer StackOverflow bug #601

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fix CanvasTransformer StackOverflow bug #601

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135 changes: 58 additions & 77 deletions library/src/com/jeremyfeinstein/slidingmenu/lib/CanvasTransformerBuilder.java
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Original file line number Diff line number Diff line change
Expand Up @@ -7,89 +7,70 @@

public class CanvasTransformerBuilder {

private CanvasTransformer mTrans;
private static Interpolator lin = new Interpolator() {
public float getInterpolation(float t) {
return t;
}
};

private static Interpolator lin = new Interpolator() {
public float getInterpolation(float t) {
return t;
}
};
public CanvasTransformer zoom(final int openedX, final int closedX,
final int openedY, final int closedY,
final float px, final float py) {
return zoom(openedX, closedX, openedY, closedY, px, py, lin);
}

private void initTransformer() {
if (mTrans == null)
mTrans = new CanvasTransformer() {
public void transformCanvas(Canvas canvas, float percentOpen) { }
};
}
public CanvasTransformer zoom(final int openedX, final int closedX,
final int openedY, final int closedY,
final float px, final float py, final Interpolator interp) {
return new CanvasTransformer() {
public void transformCanvas(Canvas canvas, float percentOpen) {
float f = interp.getInterpolation(percentOpen);
canvas.scale((openedX - closedX) * f + closedX,
(openedY - closedY) * f + closedY, px, py);
}
};
}

public CanvasTransformer zoom(final int openedX, final int closedX,
final int openedY, final int closedY,
final int px, final int py) {
return zoom(openedX, closedX, openedY, closedY, px, py, lin);
}
public CanvasTransformer rotate(final int openedDeg, final int closedDeg,
final float px, final float py) {
return rotate(openedDeg, closedDeg, px, py, lin);
}

public CanvasTransformer zoom(final int openedX, final int closedX,
final int openedY, final int closedY,
final int px, final int py, final Interpolator interp) {
initTransformer();
mTrans = new CanvasTransformer() {
public void transformCanvas(Canvas canvas, float percentOpen) {
mTrans.transformCanvas(canvas, percentOpen);
float f = interp.getInterpolation(percentOpen);
canvas.scale((openedX - closedX) * f + closedX,
(openedY - closedY) * f + closedY, px, py);
}
};
return mTrans;
}
public CanvasTransformer rotate(final int openedDeg, final int closedDeg,
final float px, final float py, final Interpolator interp) {
return new CanvasTransformer() {
public void transformCanvas(Canvas canvas, float percentOpen) {
float f = interp.getInterpolation(percentOpen);
canvas.rotate((openedDeg - closedDeg) * f + closedDeg,
px, py);
}
};
}

public CanvasTransformer rotate(final int openedDeg, final int closedDeg,
final int px, final int py) {
return rotate(openedDeg, closedDeg, px, py, lin);
}
public CanvasTransformer translate(final int openedX, final int closedX,
final int openedY, final int closedY) {
return translate(openedX, closedX, openedY, closedY, lin);
}

public CanvasTransformer rotate(final int openedDeg, final int closedDeg,
final int px, final int py, final Interpolator interp) {
initTransformer();
mTrans = new CanvasTransformer() {
public void transformCanvas(Canvas canvas, float percentOpen) {
mTrans.transformCanvas(canvas, percentOpen);
float f = interp.getInterpolation(percentOpen);
canvas.rotate((openedDeg - closedDeg) * f + closedDeg,
px, py);
}
};
return mTrans;
}
public CanvasTransformer translate(final int openedX, final int closedX,
final int openedY, final int closedY, final Interpolator interp) {
return new CanvasTransformer() {
public void transformCanvas(Canvas canvas, float percentOpen) {
float f = interp.getInterpolation(percentOpen);
canvas.translate((openedX - closedX) * f + closedX,
(openedY - closedY) * f + closedY);
}
};
}

public CanvasTransformer translate(final int openedX, final int closedX,
final int openedY, final int closedY) {
return translate(openedX, closedX, openedY, closedY, lin);
}

public CanvasTransformer translate(final int openedX, final int closedX,
final int openedY, final int closedY, final Interpolator interp) {
initTransformer();
mTrans = new CanvasTransformer() {
public void transformCanvas(Canvas canvas, float percentOpen) {
mTrans.transformCanvas(canvas, percentOpen);
float f = interp.getInterpolation(percentOpen);
canvas.translate((openedX - closedX) * f + closedX,
(openedY - closedY) * f + closedY);
}
};
return mTrans;
}

public CanvasTransformer concatTransformer(final CanvasTransformer t) {
initTransformer();
mTrans = new CanvasTransformer() {
public void transformCanvas(Canvas canvas, float percentOpen) {
mTrans.transformCanvas(canvas, percentOpen);
t.transformCanvas(canvas, percentOpen);
}
};
return mTrans;
}
public CanvasTransformer concatTransformer(final CanvasTransformer... args) {
return new CanvasTransformer() {
public void transformCanvas(Canvas canvas, float percentOpen) {
for (final CanvasTransformer arg : args) {
arg.transformCanvas(canvas, percentOpen);
}
}
};
}

}