public override bool OnTouchEvent(MotionEvent ev)
{
try
{
var cropImage = (CropImage)_context;
if (cropImage.Saving)
{
return(false);
}
switch (ev.Action)
{
case MotionEventActions.Down:
foreach (var hv in _hightlightViews)
{
var edge = hv.GetHit(ev.GetX(), ev.GetY());
if (edge != HighlightView.HitPosition.None)
{
_motionEdge = edge;
_mMotionHighlightView = hv;
_mLastX = ev.GetX();
_mLastY = ev.GetY();
_mMotionHighlightView.Mode =
(edge == HighlightView.HitPosition.Move)
? HighlightView.ModifyMode.Move
: HighlightView.ModifyMode.Grow;
break;
}
}
break;
case MotionEventActions.Up:
if (_mMotionHighlightView != null)
{
CenterBasedOnHighlightView(_mMotionHighlightView);
_mMotionHighlightView.Mode = HighlightView.ModifyMode.None;
}
_mMotionHighlightView = null;
break;
case MotionEventActions.Move:
if (_mMotionHighlightView != null)
{
_mMotionHighlightView.HandleMotion(_motionEdge,
ev.GetX() - _mLastX,
ev.GetY() - _mLastY);
_mLastX = ev.GetX();
_mLastY = ev.GetY();
if (true)
{
// This section of code is optional. It has some user
// benefit in that moving the crop rectangle against
// the edge of the screen causes scrolling but it means
// that the crop rectangle is no longer fixed under
// the user's finger.
EnsureVisible(_mMotionHighlightView);
}
}
break;
}
switch (ev.Action)
{
case MotionEventActions.Up:
Center(true, true);
break;
case MotionEventActions.Move:
// if we're not zoomed then there's no point in even allowing
// the user to move the image around. This call to center puts
// it back to the normalized location (with false meaning don't
// animate).
if (Math.Abs(GetScale() - 1F) < double.Epsilon)
{
Center(true, true);
}
break;
}
}
catch (Exception)
{
}
return(true);
}
public override bool OnTouchEvent(MotionEvent ev)
{
var cropImage = (CropImage)_context;
if (cropImage.Saving)
{
return(false);
}
switch (ev.Action)
{
case MotionEventActions.Down:
foreach (var hv in _hightlightViews)
{
var edge = hv.GetHit(ev.GetX(), ev.GetY());
if (edge != HighlightView.HitPosition.None)
{
_motionEdge = edge;
_mMotionHighlightView = hv;
_mLastX = ev.GetX();
_mLastY = ev.GetY();
_mMotionHighlightView.Mode =
(edge == HighlightView.HitPosition.Move)
? HighlightView.ModifyMode.Move
: HighlightView.ModifyMode.Grow;
break;
}
}
break;
case MotionEventActions.Up:
if (_mMotionHighlightView != null)
{
CenterBasedOnHighlightView(_mMotionHighlightView);
_mMotionHighlightView.Mode = HighlightView.ModifyMode.None;
}
_mMotionHighlightView = null;
break;
case MotionEventActions.Move:
if (_mMotionHighlightView != null)
{
_mMotionHighlightView.HandleMotion(_motionEdge,
ev.GetX() - _mLastX,
ev.GetY() - _mLastY);
_mLastX = ev.GetX();
_mLastY = ev.GetY();
if (true)
{
EnsureVisible(_mMotionHighlightView);
}
}
break;
}
switch (ev.Action)
{
case MotionEventActions.Up:
Center(true, true);
break;
case MotionEventActions.Move:
if (Math.Abs(GetScale() - 1F) < double.Epsilon)
{
Center(true, true);
}
break;
}
return(true);
}
public override bool OnTouchEvent(MotionEvent ev)
{
CropImage cropImage = (CropImage)context;
if (cropImage.Saving)
{
return false;
}
switch (ev.Action)
{
case MotionEventActions.Down:
for (int i = 0; i < hightlightViews.Count; i++)
{
HighlightView hv = hightlightViews[i];
var edge = hv.GetHit(ev.GetX(), ev.GetY());
if (edge != HighlightView.HitPosition.None)
{
motionEdge = edge;
mMotionHighlightView = hv;
mLastX = ev.GetX();
mLastY = ev.GetY();
mMotionHighlightView.Mode =
(edge == HighlightView.HitPosition.Move)
? HighlightView.ModifyMode.Move
: HighlightView.ModifyMode.Grow;
break;
}
}
break;
case MotionEventActions.Up:
if (mMotionHighlightView != null)
{
centerBasedOnHighlightView(mMotionHighlightView);
mMotionHighlightView.Mode = HighlightView.ModifyMode.None;
}
mMotionHighlightView = null;
break;
case MotionEventActions.Move:
if (mMotionHighlightView != null)
{
mMotionHighlightView.HandleMotion(motionEdge,
ev.GetX() - mLastX,
ev.GetY() - mLastY);
mLastX = ev.GetX();
mLastY = ev.GetY();
if (true)
{
// This section of code is optional. It has some user
// benefit in that moving the crop rectangle against
// the edge of the screen causes scrolling but it means
// that the crop rectangle is no longer fixed under
// the user's finger.
ensureVisible(mMotionHighlightView);
}
}
break;
}
switch (ev.Action)
{
case MotionEventActions.Up:
Center(true, true);
break;
case MotionEventActions.Move:
// if we're not zoomed then there's no point in even allowing
// the user to move the image around. This call to center puts
// it back to the normalized location (with false meaning don't
// animate).
if (GetScale() == 1F)
{
Center(true, true);
}
break;
}
return true;
}
