// ------------------------------------------------------
//
// Internal Methods
//
// ------------------------------------------------------
#region Internal Methods
// Returns the bounding rectangle of the control.
internal static Rect GetBoundingRectangle (IntPtr hwnd, WindowsSlider.SItem item, bool fHorizontal)
{
NativeMethods.Win32Rect rcChannel = new NativeMethods.Win32Rect ();
rcChannel.left = rcChannel.right = rcChannel.top = rcChannel.bottom = 1000;
unsafe
{
XSendMessage.XSend(hwnd, NativeMethods.TBM_GETCHANNELRECT, IntPtr.Zero, new IntPtr(&rcChannel), Marshal.SizeOf(rcChannel.GetType()), XSendMessage.ErrorValue.NoCheck);
}
if (!Misc.MapWindowPoints(hwnd, IntPtr.Zero, ref rcChannel, 2))
{
return Rect.Empty;
}
NativeMethods.Win32Rect rcThumb = new NativeMethods.Win32Rect();
rcThumb.left = rcThumb.right = rcThumb.top = rcThumb.bottom = 1000;
unsafe
{
XSendMessage.XSend(hwnd, NativeMethods.TBM_GETTHUMBRECT, IntPtr.Zero, new IntPtr(&rcThumb), Marshal.SizeOf(rcThumb.GetType()), XSendMessage.ErrorValue.NoCheck);
}
if (!Misc.MapWindowPoints(hwnd, IntPtr.Zero, ref rcThumb, 2))
{
return Rect.Empty;
}
if (fHorizontal)
{
// When WS_EX_RTLREADING is set swap the increment and decrement bars.
if (Misc.IsLayoutRTL(hwnd))
{
if (item == SItem.LargeDecrement)
{
item = SItem.LargeIncrement;
}
else if (item == SItem.LargeIncrement)
{
item = SItem.LargeDecrement;
}
}
switch (item)
{
case WindowsSlider.SItem.LargeDecrement :
return new Rect (rcChannel.left, rcChannel.top, rcThumb.left - rcChannel.left, rcChannel.bottom - rcChannel.top);
case WindowsSlider.SItem.Thumb :
return new Rect (rcThumb.left, rcThumb.top, rcThumb.right - rcThumb.left, rcThumb.bottom - rcThumb.top);
case WindowsSlider.SItem.LargeIncrement :
return new Rect (rcThumb.right, rcChannel.top, rcChannel.right - rcThumb.right, rcChannel.bottom - rcChannel.top);
}
}
else
{
int dx = rcChannel.bottom - rcChannel.top;
int dy = rcChannel.right - rcChannel.left;
switch (item)
{
case WindowsSlider.SItem.LargeDecrement :
return new Rect (rcChannel.left, rcChannel.top, dx, rcThumb.top - rcChannel.top);
case WindowsSlider.SItem.Thumb :
return new Rect (rcThumb.left, rcThumb.top, rcThumb.right - rcThumb.left, rcThumb.bottom - rcThumb.top);
case WindowsSlider.SItem.LargeIncrement :
return new Rect (rcChannel.left, rcThumb.bottom, dx, dy);
}
}
return Rect.Empty;
}
// ------------------------------------------------------
//
// Private Methods
//
// ------------------------------------------------------
#region Private Methods
private unsafe NativeMethods.Win32Rect BoundingRect()
{
NativeMethods.Win32Rect rectW32 = new NativeMethods.Win32Rect();
if (!XSendMessage.XSend(_hwnd, NativeMethods.TCM_GETITEMRECT, new IntPtr(_item), new IntPtr(&rectW32), Marshal.SizeOf(rectW32.GetType()), XSendMessage.ErrorValue.Zero))
{
return NativeMethods.Win32Rect.Empty;
}
return Misc.MapWindowPoints(_hwnd, IntPtr.Zero, ref rectW32, 2) ? rectW32 : NativeMethods.Win32Rect.Empty;
}
internal unsafe NativeMethods.Win32Rect GetGroupRect()
{
NativeMethods.Win32Rect rect = new NativeMethods.Win32Rect();
bool isCollapsed = WindowsListViewGroup.IsCollapsed(_hwnd, _groupID);
rect.top = isCollapsed ? NativeMethods.LVGGR_HEADER : NativeMethods.LVGGR_GROUP;
XSendMessage.XSend(_hwnd, NativeMethods.LVM_GETGROUPRECT,
new IntPtr(_groupID), new IntPtr(&rect), Marshal.SizeOf(rect.GetType()));
Misc.MapWindowPoints(_hwnd, IntPtr.Zero, ref rect, 2);
return rect;
}