//------------------------------------------------------
//
// Internal Methods
//
//------------------------------------------------------
#region Internal Methods
// Gets the bounding rectangle for this element
internal static NativeMethods.Win32Rect GetBoundingRectangle(IntPtr hwnd)
{
if (!HasGrip(hwnd))
{
return(NativeMethods.Win32Rect.Empty);
}
NativeMethods.Win32Rect client = new NativeMethods.Win32Rect();
if (!Misc.GetClientRectInScreenCoordinates(hwnd, ref client))
{
return(NativeMethods.Win32Rect.Empty);
}
// Get the Size for the Gripper
// The size can change at any time so the value cannot be cached
NativeMethods.SIZE sizeGrip = WindowsGrip.GetGripSize(hwnd, true);
if (Misc.IsLayoutRTL(hwnd))
{
// Right to left mirroring style
return(new NativeMethods.Win32Rect(client.left, client.bottom - sizeGrip.cy, client.left + sizeGrip.cx, client.bottom));
}
else
{
return(new NativeMethods.Win32Rect(client.right - sizeGrip.cx, client.bottom - sizeGrip.cy, client.right, client.bottom));
}
}
internal static bool HasGrip(IntPtr hwnd)
{
int style = Misc.GetWindowStyle(hwnd);
return(Misc.IsBitSet(style, SBARS_SIZEGRIP) || WindowsGrip.IsGripPresent(hwnd, true));
}
// Create the approiate child this can return null if that child does not exist
internal ProxyFragment CreateNonClientChild(NonClientItem item)
{
switch (item)
{
case NonClientItem.HScrollBar:
if (WindowsScrollBar.HasHorizontalScrollBar(_hwnd))
{
// the listview needs special handling WindowsListViewScrollBar inherits from WindowsScrollBar
// and overrides some of its behavoir
if (Misc.ProxyGetClassName(_hwnd) == "SysListView32")
{
return(new WindowsListViewScrollBar(_hwnd, this, (int)item, NativeMethods.SB_HORZ));
}
else
{
return(new WindowsScrollBar(_hwnd, this, (int)item, NativeMethods.SB_HORZ));
}
}
break;
case NonClientItem.VScrollBar:
if (WindowsScrollBar.HasVerticalScrollBar(_hwnd))
{
// the listview needs special handling WindowsListViewScrollBar inherits from WindowsScrollBar
// and overrides some of its behavoir
if (Misc.ProxyGetClassName(_hwnd) == "SysListView32")
{
return(new WindowsListViewScrollBar(_hwnd, this, (int)item, NativeMethods.SB_VERT));
}
else
{
return(new WindowsScrollBar(_hwnd, this, (int)item, NativeMethods.SB_VERT));
}
}
break;
case NonClientItem.TitleBar:
{
// Note 2 checks above will succeed for the win32popup menu, hence adding this last one
if (WindowsTitleBar.HasTitleBar(_hwnd))
{
return(new WindowsTitleBar(_hwnd, this, (int)item));
}
break;
}
case NonClientItem.Menu:
{
return(CreateNonClientMenu());
}
case NonClientItem.Grip:
{
int style = WindowStyle;
if (Misc.IsBitSet(style, NativeMethods.WS_VSCROLL) && Misc.IsBitSet(style, NativeMethods.WS_HSCROLL))
{
if (WindowsGrip.IsGripPresent(_hwnd, false))
{
return(new WindowsGrip(_hwnd, this, (int)item));
}
}
break;
}
default:
return(null);
}
return(null);
}
