1 files changed, 153 insertions, 0 deletions
diff --git a/public/panorama/controls/panelptr.h b/public/panorama/controls/panelptr.h
new file mode 100644
index 0000000..79a1838
--- /dev/null
+++ b/public/panorama/controls/panelptr.h
@@ -0,0 +1,153 @@
+//=========== Copyright Valve Corporation, All rights reserved. ===============//
+//
+// Purpose: 
+//=============================================================================//
+
+#ifndef PANELPTR_H
+#define PANELPTR_H
+
+#ifdef _WIN32
+#pragma once
+#endif
+
+#include "panelhandle.h"
+#include "../iuiengine.h"
+#include "../iuipanelclient.h"
+#include "panorama/panoramacxx.h"
+#include "generichash.h"
+
+namespace panorama
+{
+
+class CPanel2D;
+
+//
+// Safe pointer to a panel
+//
+template < class T >
+class CPanelPtr
+{
+public:
+	CPanelPtr() { Clear(); }
+	CPanelPtr( const CPanelPtr &rhs ) { *this = rhs; }
+	CPanelPtr( const IUIPanel *pPanel ) { Set( pPanel ); }
+	CPanelPtr( const IUIPanelClient *pPanel ) { Set( pPanel ? pPanel->UIPanel() : (IUIPanel*)NULL ); }
+
+	CPanelPtr< T > &operator=( const CPanelPtr< T > &ptr ) { m_handle = ptr.m_handle; return *this; }
+	T *operator=( T *pPanel ) { Set( pPanel ); return pPanel; }
+
+	void Clear()
+	{
+		m_handle = PanelHandle_t::InvalidHandle();
+	}
+
+	void Set( const IUIPanel *pPanel )
+	{
+		if( pPanel )
+			m_handle = UIEngine()->GetPanelHandle( pPanel );
+		else
+			Clear();
+	}
+
+	void Set( const IUIPanelClient *pPanel )
+	{
+		if( pPanel )
+			m_handle = UIEngine()->GetPanelHandle( pPanel->UIPanel() );
+		else
+			Clear();
+	}
+
+	T * Get() const
+	{
+		if ( m_handle == PanelHandle_t::InvalidHandle() )
+			return NULL;
+
+		// allow us to be called to return NULL pointers early
+		if( UIEngine() == NULL )
+		{
+			return NULL;
+		}
+
+		if( panorama_is_base_of< IUIPanel, T >::value )
+		{ 
+			T* pPanel = (T *)UIEngine()->GetPanelPtr( m_handle );
+			if ( pPanel )
+			{
+				return pPanel;
+			}
+			else 
+			{
+				m_handle = PanelHandle_t::InvalidHandle();
+				return NULL;
+			}
+		}
+		else
+		{
+			IUIPanel *pPanel = UIEngine()->GetPanelPtr( m_handle );
+			if( pPanel )
+				return (T*)(pPanel->ClientPtr());
+			else
+			{
+				m_handle = PanelHandle_t::InvalidHandle();
+				return NULL;
+			}
+		}
+	}
+
+	T *operator->() const
+	{
+		return Get();
+	}
+
+	template < class U >
+	bool operator==( const CPanelPtr< U > &rhs ) const
+	{
+		return ( m_handle == rhs.GetPanelHandle() );
+	}
+
+	template < class U >
+	bool operator!=( const CPanelPtr< U > &rhs ) const
+	{
+		return !operator==( rhs );
+	}
+	
+	template < class U >
+	bool operator<( const CPanelPtr< U > &rhs) const
+	{
+		return m_handle < rhs.m_handle;
+	}
+
+	uint64 GetHandleAsUInt64() const
+	{
+		uint64 val = 0;
+		val = ((uint64)m_handle.m_unSerialNumber)<<32 | m_handle.m_iPanelIndex;
+		return val;
+	}
+
+	void SetFromUInt64( uint64 ulValue )
+	{
+		m_handle.m_unSerialNumber = ulValue>>32;
+		m_handle.m_iPanelIndex = 0xFFFFFFFF & ulValue;
+	}
+
+	const PanelHandle_t &GetPanelHandle() const { return m_handle; }
+	bool BPreviouslySet() { return ( m_handle != PanelHandle_t::InvalidHandle() ); }
+
+private:
+	mutable PanelHandle_t m_handle;
+};
+
+template< class T > 
+inline uint32 HashItem( const CPanelPtr<T> &item )
+{
+#if defined( SOURCE2_PANORAMA )
+	return ::HashItem( item );
+#else
+	return HashItemAsBytes( item );
+#endif
+}
+
+} // namespace panorama
+
+
+#endif // PANELPTR_H