1 files changed, 94 insertions, 0 deletions
diff --git a/utils/vmpi/window_anchor_mgr.cpp b/utils/vmpi/window_anchor_mgr.cpp
new file mode 100644
index 0000000..2e76daf
--- /dev/null
+++ b/utils/vmpi/window_anchor_mgr.cpp
@@ -0,0 +1,94 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#include "stdafx.h"
+#include "window_anchor_mgr.h"
+
+
+// ------------------------------------------------------------------------------------ //
+// CWindowAnchor.
+// ------------------------------------------------------------------------------------ //
+
+bool CWindowAnchor::Init( CWnd *pParentWnd, CWnd *pChildWnd, int aLeft, int aTop, int aRight, int aBottom )
+{
+	m_pWnd = pChildWnd;
+	
+	m_aLeft = aLeft;
+	m_aTop = aTop;
+	m_aRight = aRight;
+	m_aBottom = aBottom;
+
+	if ( m_pWnd && pParentWnd )
+	{
+		pParentWnd->GetWindowRect( m_ParentRect );
+		pChildWnd->GetWindowRect( m_Rect );
+		return true;
+	}
+	else
+	{
+		return false;
+	}
+}
+
+
+void AnchorElement( long *pOut, CRect &rcParent, int startElement, CRect &rcParentStart, int flags )
+{
+	if ( flags == ANCHOR_LEFT )
+		*pOut = rcParent.left + ( startElement - rcParentStart.left );
+	else if ( flags == ANCHOR_TOP )
+		*pOut = rcParent.top + ( startElement - rcParentStart.top );
+	else if ( flags == ANCHOR_RIGHT )
+		*pOut = rcParent.right - ( rcParentStart.right - startElement );
+	else if ( flags == ANCHOR_BOTTOM )
+		*pOut = rcParent.bottom - ( rcParentStart.bottom - startElement );
+	else if ( flags == ANCHOR_WIDTH_PERCENT )
+		*pOut = rcParent.left + (rcParent.Width() * ( startElement - rcParentStart.left )) / rcParentStart.Width();
+	else if ( flags == ANCHOR_HEIGHT_PERCENT )
+		*pOut = rcParent.top + (rcParent.Height() * ( startElement - rcParentStart.top )) / rcParentStart.Height();
+}
+
+
+void CWindowAnchor::Update( CWnd *pParentWnd )
+{
+	if ( !m_pWnd )
+		return;
+
+	CRect rcParent;
+	pParentWnd->GetWindowRect( rcParent );
+
+	CRect rcNew;
+	AnchorElement( &rcNew.left,   rcParent, m_Rect.left,   m_ParentRect, m_aLeft );
+	AnchorElement( &rcNew.top,    rcParent, m_Rect.top,    m_ParentRect, m_aTop );
+	AnchorElement( &rcNew.right,  rcParent, m_Rect.right,  m_ParentRect, m_aRight );
+	AnchorElement( &rcNew.bottom, rcParent, m_Rect.bottom, m_ParentRect, m_aBottom );
+
+	pParentWnd->ScreenToClient( rcNew );
+	m_pWnd->SetWindowPos( NULL, rcNew.left, rcNew.top, rcNew.Width(), rcNew.Height(), SWP_NOZORDER );
+	m_pWnd->InvalidateRect( NULL );
+}
+
+
+
+// ------------------------------------------------------------------------------------ //
+// CWindowAnchorMgr.
+// ------------------------------------------------------------------------------------ //
+
+bool CWindowAnchorMgr::AddAnchor( CWnd *pParentWnd, CWnd *pChildWnd, int aLeft, int aTop, int aRight, int aBottom )
+{
+	int index = m_Anchors.AddToTail();
+	return m_Anchors[index].Init( pParentWnd, pChildWnd, aLeft, aTop, aRight, aBottom );
+}
+
+
+void CWindowAnchorMgr::UpdateAnchors( CWnd *pParentWnd )
+{
+	FOR_EACH_LL( m_Anchors, i )
+	{
+		m_Anchors[i].Update( pParentWnd );
+	}
+}
+