protected override void OnMouseMove(MouseEventArgs e)
{
base.OnMouseMove(e);
if (ShowSizingGrip && SizingGripBounds.Contains(e.X, e.Y))
{
Cursor = Cursors.SizeNWSE;
}
else if (Cursor == Cursors.SizeNWSE)
{
Cursor = Cursors.Default;
}
if (_resizing)
{
int dx = e.X - _resizeOrigin.X;
int dy = e.Y - _resizeOrigin.Y;
int w = _resizeSize.Width + dx;
int h = _resizeSize.Height + dy;
if (w != Width || h != Height)
{
Width = w;
Height = h;
UpdateItemsBounds();
Invalidate();
}
}
}
protected override void OnMouseMove(MouseEventArgs e)
{
base.OnMouseMove(e);
if (ShowSizingGrip && SizingGripBounds.Contains(e.X, e.Y))
{
Cursor = Cursors.SizeNWSE;
}
else if (Cursor == Cursors.SizeNWSE)
{
Cursor = Cursors.Default;
}
if (_resizing)
{
int dx = e.X - _resizeOrigin.X;
int dy = e.Y - _resizeOrigin.Y;
int w = _resizeSize.Width + dx;
int h = _resizeSize.Height + dy;
if (w != Width || h != Height)
{
Size = new Size(w, h);
if (WrappedDropDown != null)
{
WrappedDropDown.Size = Size;
}
int contentHeight = Bounds.Height - OwnerRibbon.DropDownMargin.Vertical - _sizingGripBounds.Height;
if (contentHeight < _fullContentBounds.Height)
{
_scrollBarEnabled = true;
if (-_offset + contentHeight > _fullContentBounds.Height)
{
_offset = contentHeight - _fullContentBounds.Height;
}
}
else
{
_scrollBarEnabled = false;
}
SetBounds();
Invalidate();
}
}
if (ButtonDownPressed && ButtonDownSelected && ButtonDownEnabled)
{
ScrollOffset(-1);
}
if (ButtonUpPressed && ButtonUpSelected && ButtonUpEnabled)
{
ScrollOffset(1);
}
bool upCache = _buttonUpSelected;
bool downCache = _buttonDownSelected;
bool thumbCache = _thumbSelected;
_buttonUpSelected = _buttonUpBounds.Contains(e.Location);
_buttonDownSelected = _buttonDownBounds.Contains(e.Location);
_thumbSelected = _thumbBounds.Contains(e.Location) && ScrollBarEnabled;
if ((upCache != _buttonUpSelected) ||
(downCache != _buttonDownSelected) ||
(thumbCache != _thumbSelected))
{
Invalidate();
}
if (ThumbPressed)
{
int newval = e.Y - _thumbOffset;
if (newval < ScrollMinimum)
{
newval = ScrollMinimum;
}
else if (newval > ScrollMaximum)
{
newval = ScrollMaximum;
}
ScrollValue = newval;
Invalidate();
}
}