internal override void OnMenuChanged(EventArgs e)
{
base.OnMenuChanged(EventArgs.Empty);
if (form == null)
{
return;
}
Rectangle clip = Rect;
Height = 0; /* need this so the theme code will re-layout the menu items
* (why is the theme code doing the layout? argh) */
if (!Wnd.IsHandleCreated)
{
return;
}
Message m = Message.Create(Wnd.window.Handle, (int)Msg.WM_PAINT, IntPtr.Zero, IntPtr.Zero);
PaintEventArgs pevent = XplatUI.PaintEventStart(ref m, Wnd.window.Handle, false);
pevent.Graphics.SetClip(clip);
Draw(pevent, clip);
}
internal void Draw()
{
Message m = Message.Create(Wnd.window.Handle, (int)Msg.WM_PAINT, IntPtr.Zero, IntPtr.Zero);
PaintEventArgs pe = XplatUI.PaintEventStart(ref m, Wnd.window.Handle, false);
Draw(pe, Rect);
}
protected virtual bool HandleNCPaint(ref Message m)
{
PaintEventArgs pe = XplatUI.PaintEventStart(ref m, form.Handle, false);
Rectangle clip;
if (form.ActiveMenu != null)
{
Point pnt;
pnt = GetMenuOrigin();
// The entire menu has to be in the clip rectangle because the
// control buttons are right-aligned and otherwise they would
// stay painted when the window gets resized.
clip = new Rectangle(pnt.X, pnt.Y, form.ClientSize.Width, 0);
clip = Rectangle.Union(clip, pe.ClipRectangle);
pe.SetClip(clip);
pe.Graphics.SetClip(clip);
form.ActiveMenu.Draw(pe, new Rectangle(pnt.X, pnt.Y, form.ClientSize.Width, 0));
}
if (HasBorders || IsMinimized && !(Form.IsMdiChild && IsMaximized))
{
// clip region is not correct on win32.
// use the entire form's area.
clip = new Rectangle(0, 0, form.Width, form.Height);
ThemeEngine.Current.DrawManagedWindowDecorations(pe.Graphics, clip, this);
}
XplatUI.PaintEventEnd(ref m, form.Handle, false);
return(true);
}
internal void Draw(Rectangle rect)
{
if (Wnd.IsHandleCreated)
{
Point pt = XplatUI.GetMenuOrigin(Wnd.window.Handle);
Message m = Message.Create(Wnd.window.Handle, (int)Msg.WM_PAINT, IntPtr.Zero, IntPtr.Zero);
PaintEventArgs pevent = XplatUI.PaintEventStart(ref m, Wnd.window.Handle, false);
pevent.Graphics.SetClip(new Rectangle(rect.X + pt.X, rect.Y + pt.Y, rect.Width, rect.Height));
Draw(pevent, Rect);
XplatUI.PaintEventEnd(ref m, Wnd.window.Handle, false);
}
}
protected virtual bool HandleNCPaint(ref Message m)
{
PaintEventArgs pe = XplatUI.PaintEventStart(ref m, form.Handle, false);
Rectangle clip;
if (HasBorders || IsMinimized && !(Form.IsMdiChild && IsMaximized))
{
// clip region is not correct on win32.
// use the entire form's area.
clip = new Rectangle(0, 0, form.Width, form.Height);
ThemeEngine.Current.DrawManagedWindowDecorations(pe.Graphics, clip, this);
}
XplatUI.PaintEventEnd(ref m, form.Handle, false, pe);
return(true);
}
protected override void WndProc(ref Message m)
{
switch ((Msg)m.Msg)
{
case Msg.WM_NCPAINT:
PaintEventArgs pe = XplatUI.PaintEventStart(ref m, Handle, false);
Rectangle clip;
clip = new Rectangle(0, 0, Width, Height);
ControlPaint.DrawBorder3D(pe.Graphics, clip, Border3DStyle.Sunken);
XplatUI.PaintEventEnd(ref m, Handle, false, pe);
m.Result = IntPtr.Zero;
return;
}
base.WndProc(ref m);
}
