87 lines
2.5 KiB
C++
87 lines
2.5 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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// $NoKeywords: $
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//=============================================================================//
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#ifndef PHANDLE_H
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#define PHANDLE_H
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#ifdef _WIN32
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#pragma once
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#endif
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#include <vgui/VGUI.h>
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namespace vgui
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{
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class Panel;
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//-----------------------------------------------------------------------------
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// Purpose: Safe pointer class for handling Panel or derived panel classes
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//-----------------------------------------------------------------------------
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class PHandle
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{
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public:
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PHandle() : m_iPanelID(INVALID_PANEL) {} //m_iSerialNumber(0), m_pListEntry(0) {}
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Panel *Get();
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Panel *Set( Panel *pPanel );
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Panel *Set( HPanel hPanel );
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operator Panel *() { return Get(); }
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Panel * operator ->() { return Get(); }
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Panel * operator = (Panel *pPanel) { return Set(pPanel); }
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bool operator == (Panel *pPanel) { return (Get() == pPanel); }
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operator bool () { return Get() != 0; }
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private:
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HPanel m_iPanelID;
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};
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//-----------------------------------------------------------------------------
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// Purpose: Safe pointer class to just convert between VPANEL's and PHandle
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//-----------------------------------------------------------------------------
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class VPanelHandle
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{
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public:
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VPanelHandle() : m_iPanelID(INVALID_PANEL) {}
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VPANEL Get();
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VPANEL Set( VPANEL pPanel );
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operator VPANEL () { return Get(); }
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VPANEL operator = (VPANEL pPanel) { return Set(pPanel); }
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bool operator == (VPANEL pPanel) { return (Get() == pPanel); }
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operator bool () { return Get() != 0; }
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private:
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HPanel m_iPanelID;
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};
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//-----------------------------------------------------------------------------
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// Purpose: DHANDLE is a templated version of PHandle
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//-----------------------------------------------------------------------------
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template< class PanelType >
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class DHANDLE : public PHandle
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{
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public:
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PanelType *Get() { return (PanelType *)PHandle::Get(); }
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PanelType *Set( PanelType *pPanel ) { return (PanelType *)PHandle::Set(pPanel); }
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PanelType *Set( HPanel hPanel ) { return (PanelType *)PHandle::Set(hPanel); }
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operator PanelType *() { return (PanelType *)PHandle::Get(); }
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PanelType * operator ->() { return (PanelType *)PHandle::Get(); }
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PanelType * operator = (PanelType *pPanel) { return (PanelType *)PHandle::Set(pPanel); }
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bool operator == (Panel *pPanel) { return (PHandle::Get() == pPanel); }
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operator bool () { return PHandle::Get() != NULL; }
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};
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};
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#endif // PHANDLE_H
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