protected override void OnMouseMove(MouseEventArgs e)
{
if (IsSplitterFixed)
{
if (e.Button == MouseButtons.Left)
{
if (Orientation == Orientation.Vertical)
{
if (e.X > 0 && e.X < Width)
{
SplitterDistance = e.X + _delta < 0 ? 0 : e.X + _delta;
}
}
else
{
if (e.Y > 0 && e.Y < Height)
{
SplitterDistance = e.Y + _delta < 0 ? 0 : e.Y + _delta;
}
}
}
else
{
IsSplitterFixed = false;
}
Invalidate();
}
else
{
if (SplitterRectangle.Contains(e.Location))
{
Cursor = Orientation == Orientation.Vertical ? Cursors.VSplit : Cursors.HSplit;
}
}
}
protected override void OnDoubleClick(EventArgs e)
{
if (SplitterRectangle.Contains(PointToClient(Control.MousePosition)))
{
Collapsed = !Collapsed;
return;
}
base.OnDoubleClick(e);
}
private bool HoveringButtons(int x, int y)
{
if (!SplitterRectangle.Contains(x, y))
{
return(false);
}
return(_collapse1Rectangle.Contains(x, y) ||
_collapse2Rectangle.Contains(x, y) ||
_directionRectangle.Contains(x, y));
}
private void UpdateCursor(int x, int y)
{
if (!SplitterRectangle.Contains(x, y) ||
HoveringButtons(x, y))
{
Cursor = Cursors.Default;
return;
}
Cursor = (Orientation == Orientation.Vertical ? Cursors.VSplit : Cursors.HSplit);
return;
}
protected override void OnMouseMove(MouseEventArgs e)
{
//鼠标在控制按钮区域
if (SplitterRectangle.Contains(e.Location))
{
if (ControlRect.Contains(e.Location))
{
//如果拆分器可移动，则鼠标在控制按钮范围内时临时关闭拆分器
if (!IsSplitterFixed)
{
IsSplitterFixed = true;
_isSplitterFixed = false;
}
Cursor = Cursors.Hand;
_mouseState = MouseState.Hover;
Invalidate(ControlRect);
}
else
{
//如果拆分器为临时关闭，则开启拆分器
if (!_isSplitterFixed)
{
IsSplitterFixed = false;
Cursor = Orientation == Orientation.Horizontal ? Cursors.HSplit : Cursors.VSplit;
}
else
{
Cursor = Cursors.Default;
}
_mouseState = MouseState.Normal;
Invalidate(ControlRect);
}
}
base.OnMouseMove(e);
}