private boolean isDeletingExistingShape(int x, int y) {
for (ShapeDrawable shape : shapes) {
Rect bounds = shape.getBounds();
if (bounds.contains(x, y)) {
shapes.remove(shape);
return (true);
}
}
return (false);
}
public void setVolume(int volume) {
mVolume = Math.max(0, Math.min(mVolumeMax, volume));
final Rect r = mBar.getBounds();
if (mVertical) {
mCover.setBounds(
r.left + mVolume * (r.right - r.left) / mVolumeMax, r.top, r.right, r.bottom);
} else {
mCover.setBounds(r.left, r.top, r.right, r.top + mVolume * (r.bottom - r.top) / mVolumeMax);
}
this.invalidate();
}
@Override
public boolean onTouchEvent(MotionEvent event) {
final Rect r = mBar.getBounds();
final int newX = (int) event.getX();
final int newY = (int) event.getY();
final int coverBottom = Math.min(r.bottom, Math.max(r.top, newY));
final int coverRight = Math.min(r.right, Math.max(r.left, newX));
final int action = event.getAction();
// begin of touch event, check if touch was in range
if (MotionEvent.ACTION_DOWN == action) {
mEmbraceTouch = (r.left <= newX && newX <= r.right);
}
// we can ignore all further touch events
if (!mEmbraceTouch) {
return false;
}
// check for end of touch gesture
if (MotionEvent.ACTION_UP == action) {
mEmbraceTouch = false;
if (null != mOnVolumeChangedListener) {
if (mVertical) {
mVolume = mVolumeMax * (coverRight - r.left) / (r.right - r.left);
mOnVolumeChangedListener.onVolumeChanged(mVolume);
} else {
mVolume = mVolumeMax - mVolumeMax * (coverBottom - r.top) / (r.bottom - r.top);
mOnVolumeChangedListener.onVolumeChanged(mVolume);
}
}
}
// we moved the selection -> repaint
if (mVertical) {
mCover.setBounds(coverRight, r.top, r.right, r.bottom);
} else {
mCover.setBounds(r.left, r.top, r.right, coverBottom);
}
this.invalidate();
return true;
}