Added original SDK code for Alien Swarm.

public/vgui/IInputInternal.h

@@ -0,0 +1,90 @@
+//===== Copyright <20> 1996-2005, Valve Corporation, All rights reserved. ======//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//===========================================================================//
+
+#ifndef IINPUTINTERNAL_H
+#define IINPUTINTERNAL_H
+#ifdef _WIN32
+#pragma once
+#endif
+
+#include <vgui/IInput.h>
+
+namespace vgui
+{
+
+enum MouseCodeState_t
+{
+	BUTTON_RELEASED = 0,
+	BUTTON_PRESSED,
+	BUTTON_DOUBLECLICKED,
+};
+
+typedef int HInputContext;
+
+#define DEFAULT_INPUT_CONTEXT ((vgui::HInputContext)~0)
+
+class IInputInternal : public IInput
+{
+public:
+	// processes input for a frame
+	virtual void RunFrame() = 0;
+
+	virtual void UpdateMouseFocus(int x, int y) = 0;
+
+	// called when a panel becomes invalid
+	virtual void PanelDeleted(VPANEL panel) = 0;
+
+	// inputs into vgui input handling 
+	virtual bool InternalCursorMoved(int x,int y) = 0; //expects input in surface space
+	virtual bool InternalMousePressed(MouseCode code) = 0;
+	virtual bool InternalMouseDoublePressed(MouseCode code) = 0;
+	virtual bool InternalMouseReleased(MouseCode code) = 0;
+	virtual bool InternalMouseWheeled(int delta) = 0;
+	virtual bool InternalKeyCodePressed(KeyCode code) = 0;
+	virtual void InternalKeyCodeTyped(KeyCode code) = 0;
+	virtual void InternalKeyTyped(wchar_t unichar) = 0;
+	virtual bool InternalKeyCodeReleased(KeyCode code) = 0;
+
+	// Creates/ destroys "input" contexts, which contains information
+	// about which controls have mouse + key focus, for example.
+	virtual HInputContext CreateInputContext() = 0;
+	virtual void DestroyInputContext( HInputContext context ) = 0; 
+
+	// Associates a particular panel with an input context
+	// Associating NULL is valid; it disconnects the panel from the context
+	virtual void AssociatePanelWithInputContext( HInputContext context, VPANEL pRoot ) = 0;
+
+	// Activates a particular input context, use DEFAULT_INPUT_CONTEXT
+	// to get the one normally used by VGUI
+	virtual void ActivateInputContext( HInputContext context ) = 0;
+
+	// This method is called to post a cursor message to the current input context
+	virtual void PostCursorMessage() = 0;
+
+	// Cursor position; this is the current position read from the input queue.
+	// We need to set it because client code may read this during Mouse Pressed
+	// events, etc.
+	virtual void UpdateCursorPosInternal( int x, int y ) = 0;
+
+	// Called to handle explicit calls to CursorSetPos after input processing is complete
+	virtual void HandleExplicitSetCursor( ) = 0;
+
+	// Updates the internal key/mouse state associated with the current input context without sending messages
+	virtual void SetKeyCodeState( KeyCode code, bool bPressed ) = 0;
+	virtual void SetMouseCodeState( MouseCode code, MouseCodeState_t state ) = 0;
+	virtual void UpdateButtonState( const InputEvent_t &event ) = 0;
+
+	// Resets a particular input context, use DEFAULT_INPUT_CONTEXT
+	// to get the one normally used by VGUI
+	virtual void ResetInputContext( HInputContext context ) = 0;
+};
+
+} // namespace vgui
+
+#define VGUI_INPUTINTERNAL_INTERFACE_VERSION "VGUI_InputInternal001"
+
+#endif // IINPUTINTERNAL_H