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vgui2/src/vgui_internal.cpp

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: Core implementation of vgui
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#include "vgui_internal.h"
+
+#include <vgui/ISurface.h>
+#include <vgui/ILocalize.h>
+#include <vgui/IPanel.h>
+#include "filesystem.h"
+#include <vstdlib/IKeyValuesSystem.h>
+
+#include <stdio.h>
+
+// memdbgon must be the last include file in a .cpp file!!!
+#include "tier0/memdbgon.h"
+
+namespace vgui
+{
+
+ISurface *g_pSurface = NULL;
+IPanel *g_pIPanel = NULL;
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+static void *InitializeInterface( char const *interfaceName, CreateInterfaceFn *factoryList, int numFactories )
+{
+	void *retval;
+
+	for ( int i = 0; i < numFactories; i++ )
+	{
+		CreateInterfaceFn factory = factoryList[ i ];
+		if ( !factory )
+			continue;
+
+		retval = factory( interfaceName, NULL );
+		if ( retval )
+			return retval;
+	}
+
+	// No provider for requested interface!!!
+	// assert( !"No provider for requested interface!!!" );
+
+	return NULL;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Output : Returns true on success, false on failure.
+//-----------------------------------------------------------------------------
+bool VGui_InternalLoadInterfaces( CreateInterfaceFn *factoryList, int numFactories )
+{
+	// loads all the interfaces
+	g_pSurface = (ISurface *)InitializeInterface(VGUI_SURFACE_INTERFACE_VERSION, factoryList, numFactories );
+//	g_pKeyValues = (IKeyValues *)InitializeInterface(KEYVALUES_INTERFACE_VERSION, factoryList, numFactories );
+	g_pIPanel = (IPanel *)InitializeInterface(VGUI_PANEL_INTERFACE_VERSION, factoryList, numFactories );
+
+	if (g_pSurface && /*g_pKeyValues &&*/ g_pIPanel)
+		return true;
+
+	return false;
+}
+
+} // namespace vgui