@Override
public void onResize(int mode, int delta) {
if (mTarget == null) return;
if (mResizeFrame == null) return;
int w = getMeasuredWidth() - (getPaddingLeft() + getPaddingRight());
int h = getMeasuredHeight() - (getPaddingTop() + getPaddingBottom());
int minWidth = (w / mCols) + (w / mCols) / 2;
int minHeight = (h / mRows) + (h / mRows) / 2;
FrameLayout.LayoutParams params = (FrameLayout.LayoutParams) mResizeFrame.getLayoutParams();
switch (mode) {
case Gravity.LEFT:
float newpos = mResizeFrame.getX() + delta;
if ((delta < 0 && newpos < (getPaddingLeft() * -1))
|| (delta > 0 && newpos > (mResizeFrame.getX() + params.width - minWidth))) {
return;
}
mResizeFrame.setX(newpos);
params.width -= delta;
break;
case Gravity.RIGHT:
if ((delta < 0 && ((params.width + delta) < minWidth))
|| (delta > 0
&& (mResizeFrame.getX() + delta + params.width)
> (getPaddingLeft() + getMeasuredWidth()))) {
return;
}
params.width += delta;
break;
case Gravity.TOP:
newpos = mResizeFrame.getY() + delta;
if ((delta < 0 && newpos < (getPaddingTop() * -1))
|| (delta > 0 && newpos > (mResizeFrame.getY() + params.height - minHeight))) {
return;
}
mResizeFrame.setY(newpos);
params.height -= delta;
break;
case Gravity.BOTTOM:
if ((delta < 0 && ((params.height + delta) < minHeight))
|| (delta > 0
&& (mResizeFrame.getY() + delta + params.height)
> (getPaddingTop() + getMeasuredHeight()))) {
return;
}
params.height += delta;
break;
default:
break;
}
mResizeFrame.setLayoutParams(params);
}
/**
* Method that select a view as the target of to resize
*
* @param v The target view
*/
boolean selectTarget(View v) {
// Do not do long click if we do not have a target
if (mTarget != null && v.equals(mTarget)) return false;
if (mResizeFrame == null) return false;
// Show the resize frame view just in place of the current clicked view
mResizeFrame.hide();
FrameLayout.LayoutParams frameParams =
(FrameLayout.LayoutParams) mResizeFrame.getLayoutParams();
int padding = mInternalPadding + mResizeFrame.getNeededPadding();
frameParams.width = v.getWidth() + (padding * 2);
frameParams.height = v.getHeight() + (padding * 2);
mResizeFrame.setX(v.getX() - padding);
mResizeFrame.setY(v.getY() - padding);
mResizeFrame.show();
// Save the new view
mTarget = v;
if (mOnFrameSelectedListener != null) {
mOnFrameSelectedListener.onFrameSelectedListener(v);
}
return true;
}