void CheckStateChanges()
{
bool alreadyInvalidated = false;
WhichButton button = WhichButtonIsBeingHovered(PointToClient(Cursor.Position));
if (button != _button)
{
_button = button;
Invalidate();
alreadyInvalidated = true;
}
if ((MouseButtons & MouseButtons.Left) != 0)
{
_down = true;
if (!alreadyInvalidated)
{
Invalidate();
alreadyInvalidated = true;
}
}
else if (_down)
{
_down = false;
if (!alreadyInvalidated)
{
Invalidate();
alreadyInvalidated = true;
}
}
}
protected override void OnMouseMove(MouseEventArgs e)
{
// See if they are over any of the buttons
WhichButton oldHotTrack = _hotTrack;
if (_sizeOutline.IsVisible(e.X, e.Y))
{
_hotTrack = WhichButton.Size;
}
else if (_velocityOutline.IsVisible(e.X, e.Y))
{
_hotTrack = WhichButton.Velocity;
}
else
{
_hotTrack = WhichButton.None;
}
if (oldHotTrack != _hotTrack)
{
_isDirty = true;
this.Invalidate();
}
base.OnMouseMove(e);
}
protected override void OnMouseLeave(EventArgs e)
{
if (_hotTrack != WhichButton.None)
{
_hotTrack = WhichButton.None;
_isDirty = true;
this.Invalidate();
}
base.OnMouseLeave(e);
}
VisualStyleRenderer GetStyleElement(WhichButton button)
{
switch (button)
{
case WhichButton.Bottom:
if (!Enabled)
{
return(Drawing.DownArrowDisabled);
}
else if (_button != WhichButton.Bottom)
{
return(Drawing.DownArrowNormal);
}
else if (_down)
{
return(Drawing.DownArrowPressed);
}
else if (_hovering)
{
return(Drawing.DownArrowHot);
}
else
{
return(Drawing.DownArrowNormal);
}
case WhichButton.Top:
if (!Enabled)
{
return(Drawing.UpArrowDisabled);
}
else if (_button != WhichButton.Top)
{
return(Drawing.UpArrowNormal);
}
else if (_down)
{
return(Drawing.UpArrowPressed);
}
else if (_hovering)
{
return(Drawing.UpArrowHot);
}
else
{
return(Drawing.UpArrowNormal);
}
}
throw new Exception();
}
VisualStyleRenderer GetStyleElement(WhichButton button)
{
switch (button)
{
case WhichButton.Left:
if (!Enabled)
{
return(Drawing.SplitButtonLeftDisabled);
}
else if (_button != WhichButton.Left)
{
return(Drawing.SplitButtonLeftNormal);
}
else if (_down)
{
return(Drawing.SplitButtonLeftPressed);
}
else
{
return(Drawing.SplitButtonLeftNormal);
}
case WhichButton.Right:
if (!Enabled)
{
return(Drawing.SplitButtonRightDisabled);
}
else if (_button != WhichButton.Right)
{
return(Drawing.SplitButtonRightNormal);
}
else if (_down)
{
return(Drawing.SplitButtonRightPressed);
}
else
{
return(Drawing.SplitButtonRightNormal);
}
}
throw new Exception();
}
VisualStyleRenderer GetStyleElement(WhichButton button)
{
switch (button)
{
case WhichButton.Left:
if (!Enabled)
return Drawing.SplitButtonLeftDisabled;
else if (_button != WhichButton.Left)
return Drawing.SplitButtonLeftNormal;
else if (_down)
return Drawing.SplitButtonLeftPressed;
else
return Drawing.SplitButtonLeftNormal;
case WhichButton.Right:
if (!Enabled)
return Drawing.SplitButtonRightDisabled;
else if (_button != WhichButton.Right)
return Drawing.SplitButtonRightNormal;
else if (_down)
return Drawing.SplitButtonRightPressed;
else
return Drawing.SplitButtonRightNormal;
}
throw new Exception();
}
void CheckStateChanges()
{
bool alreadyInvalidated = false;
WhichButton button = WhichButtonIsBeingHovered(PointToClient(Cursor.Position));
if (button != _button)
{
_button = button;
Invalidate();
alreadyInvalidated = true;
}
if ((MouseButtons & MouseButtons.Left) != 0)
{
_down = true;
if (!alreadyInvalidated)
{
Invalidate();
alreadyInvalidated = true;
}
}
else if (_down)
{
_down = false;
if (!alreadyInvalidated)
{
Invalidate();
alreadyInvalidated = true;
}
}
}
protected override void OnMouseLeave(EventArgs e)
{
if (_hotTrack != WhichButton.None)
{
_hotTrack = WhichButton.None;
_isDirty = true;
this.Invalidate();
}
base.OnMouseLeave(e);
}
protected override void OnMouseMove(MouseEventArgs e)
{
// See if they are over any of the buttons
WhichButton oldHotTrack = _hotTrack;
if (_sizeOutline.IsVisible(e.X, e.Y))
{
_hotTrack = WhichButton.Size;
}
else if (_velocityOutline.IsVisible(e.X, e.Y))
{
_hotTrack = WhichButton.Velocity;
}
else
{
_hotTrack = WhichButton.None;
}
if (oldHotTrack != _hotTrack)
{
_isDirty = true;
this.Invalidate();
}
base.OnMouseMove(e);
}
