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OnScale listener #24

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OnScale listener #24

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15 changes: 15 additions & 0 deletions ImageViewTouch/src/it/sephiroth/android/library/imagezoom/ImageViewTouch.java
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Original file line number Diff line number Diff line change
Expand Up @@ -29,6 +29,7 @@ public class ImageViewTouch extends ImageViewTouchBase {
protected boolean mScrollEnabled = true;
private OnImageViewTouchDoubleTapListener mDoubleTapListener;
private OnImageViewTouchSingleTapListener mSingleTapListener;
private OnImageViewTouchScaleListener mUserScaleListener;

public ImageViewTouch ( Context context, AttributeSet attrs ) {
super( context, attrs );
Expand All @@ -55,6 +56,10 @@ public void setSingleTapListener( OnImageViewTouchSingleTapListener listener ) {
mSingleTapListener = listener;
}

public void setUserScaleListener( OnImageViewTouchScaleListener listener ) {
mUserScaleListener = listener;
}

public void setDoubleTapEnabled( boolean value ) {
mDoubleTapEnabled = value;
}
Expand Down Expand Up @@ -254,6 +259,11 @@ public boolean onScale( ScaleGestureDetector detector ) {
float targetScale = getScale() * detector.getScaleFactor();

if ( mScaleEnabled ) {

if (mUserScaleListener != null) {
mUserScaleListener.onScale();
}

if( mScaled && span != 0 ) {
targetScale = Math.min( getMaxScale(), Math.max( targetScale, getMinScale() - 0.1f ) );
zoomTo( targetScale, detector.getFocusX(), detector.getFocusY() );
Expand All @@ -279,4 +289,9 @@ public interface OnImageViewTouchSingleTapListener {

void onSingleTapConfirmed();
}

public interface OnImageViewTouchScaleListener {
void onScale();
}

}