protected virtual bool HandleNCHitTest(ref Message m)
{
int x = Control.LowOrder((int)m.LParam.ToInt32());
int y = Control.HighOrder((int)m.LParam.ToInt32());
NCPointToClient(ref x, ref y);
FormPos pos = FormPosForCoords(x, y);
if (pos == FormPos.TitleBar)
{
m.Result = new IntPtr((int)HitTest.HTCAPTION);
return(true);
}
if (!IsSizable)
{
return(false);
}
switch (pos)
{
case FormPos.Top:
m.Result = new IntPtr((int)HitTest.HTTOP);
break;
case FormPos.Left:
m.Result = new IntPtr((int)HitTest.HTLEFT);
break;
case FormPos.Right:
m.Result = new IntPtr((int)HitTest.HTRIGHT);
break;
case FormPos.Bottom:
m.Result = new IntPtr((int)HitTest.HTBOTTOM);
break;
case FormPos.TopLeft:
m.Result = new IntPtr((int)HitTest.HTTOPLEFT);
break;
case FormPos.TopRight:
m.Result = new IntPtr((int)HitTest.HTTOPRIGHT);
break;
case FormPos.BottomLeft:
m.Result = new IntPtr((int)HitTest.HTBOTTOMLEFT);
break;
case FormPos.BottomRight:
m.Result = new IntPtr((int)HitTest.HTBOTTOMRIGHT);
break;
default:
// We return false so that DefWndProc handles things
return(false);
}
return(true);
}
private bool HandleNCLButtonUp(ref Message m)
{
if (form.Capture)
{
ClearVirtualPosition();
form.Capture = false;
state = State.Idle;
if (form.MdiContainer != null)
{
form.MdiContainer.SizeScrollBars();
}
}
int x = Control.LowOrder((int)m.LParam.ToInt32());
int y = Control.HighOrder((int)m.LParam.ToInt32());
NCPointToClient(ref x, ref y);
FormPos pos = FormPosForCoords(x, y);
if (pos == FormPos.TitleBar)
{
HandleTitleBarUp(x, y);
return(true);
}
return(true);
}
protected virtual void HandleNCLButtonDblClick(ref Message m)
{
int x = Control.LowOrder((int)m.LParam.ToInt32());
int y = Control.HighOrder((int)m.LParam.ToInt32());
// Need to adjust because we are in NC land
NCPointToClient(ref x, ref y);
FormPos pos = FormPosForCoords(x, y);
if (pos == FormPos.TitleBar || pos == FormPos.Top)
{
HandleTitleBarDoubleClick(x, y);
}
}
protected virtual bool HandleNCMouseLeave(ref Message m)
{
int x = Control.LowOrder((int)m.LParam.ToInt32());
int y = Control.HighOrder((int)m.LParam.ToInt32());
NCPointToClient(ref x, ref y);
FormPos pos = FormPosForCoords(x, y);
if (pos != FormPos.TitleBar)
{
HandleTitleBarLeave(x, y);
return(true);
}
return(true);
}
protected virtual bool HandleNCLButtonDown(ref Message m)
{
Activate();
start = Cursor.Position;
virtual_position = form.Bounds;
int x = Control.LowOrder((int)m.LParam.ToInt32());
int y = Control.HighOrder((int)m.LParam.ToInt32());
// Need to adjust because we are in NC land
NCPointToClient(ref x, ref y);
FormPos pos = FormPosForCoords(x, y);
if (form.ActiveMenu != null && XplatUI.IsEnabled(form.Handle))
{
MouseEventArgs mea = new MouseEventArgs(Form.FromParamToMouseButtons(m.WParam.ToInt32()), form.mouse_clicks, x, y - TitleBarHeight, 0);
form.ActiveMenu.OnMouseDown(form, mea);
}
if (pos == FormPos.TitleBar)
{
HandleTitleBarDown(x, y);
return(true);
}
if (IsSizable)
{
if ((pos & FormPos.AnyEdge) == 0)
{
return(false);
}
virtual_position = form.Bounds;
state = State.Sizing;
sizing_edge = pos;
form.Capture = true;
return(true);
}
return(false);
}
protected virtual bool HandleNCMouseMove(ref Message m)
{
int x = Control.LowOrder((int)m.LParam.ToInt32( ));
int y = Control.HighOrder((int)m.LParam.ToInt32( ));
NCPointToClient(ref x, ref y);
FormPos pos = FormPosForCoords(x, y);
if (pos == FormPos.TitleBar)
{
HandleTitleBarMouseMove(x, y);
return(true);
}
if (form.ActiveMenu != null && XplatUI.IsEnabled(form.Handle))
{
MouseEventArgs mea = new MouseEventArgs(Form.FromParamToMouseButtons(m.WParam.ToInt32()), form.mouse_clicks, x, y, 0);
form.ActiveMenu.OnMouseMove(form, mea);
}
return(true);
}
protected virtual bool HandleNCLButtonDown(ref Message m)
{
Activate();
start = Cursor.Position;
virtual_position = form.Bounds;
int x = Control.LowOrder((int)m.LParam.ToInt32());
int y = Control.HighOrder((int)m.LParam.ToInt32());
// Need to adjust because we are in NC land
NCPointToClient(ref x, ref y);
FormPos pos = FormPosForCoords(x, y);
if (pos == FormPos.TitleBar)
{
HandleTitleBarDown(x, y);
return(true);
}
if (IsSizable)
{
if ((pos & FormPos.AnyEdge) == 0)
{
return(false);
}
virtual_position = form.Bounds;
state = State.Sizing;
sizing_edge = pos;
form.Capture = true;
return(true);
}
return(false);
}
protected virtual bool HandleNCLButtonDown (ref Message m)
{
Activate ();
start = Cursor.Position;
virtual_position = form.Bounds;
int x = Control.LowOrder ((int) m.LParam.ToInt32 ());
int y = Control.HighOrder ((int) m.LParam.ToInt32 ());
// Need to adjust because we are in NC land
NCPointToClient (ref x, ref y);
FormPos pos = FormPosForCoords (x, y);
if (form.ActiveMenu != null && XplatUI.IsEnabled (form.Handle)) {
MouseEventArgs mea = new MouseEventArgs (Form.FromParamToMouseButtons (m.WParam.ToInt32 ()), form.mouse_clicks, x, y - TitleBarHeight, 0);
form.ActiveMenu.OnMouseDown (form, mea);
}
if (pos == FormPos.TitleBar) {
HandleTitleBarDown (x, y);
return true;
}
if (IsSizable) {
if ((pos & FormPos.AnyEdge) == 0)
return false;
virtual_position = form.Bounds;
state = State.Sizing;
sizing_edge = pos;
form.Capture = true;
return true;
}
return false;
}
