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57 lines
1.3 KiB
57 lines
1.3 KiB
5 years ago
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//=========== Copyright Valve Corporation, All rights reserved. ===============//
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//
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// Purpose:
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//=============================================================================//
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#ifndef PANELHANDLE_H
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#define PANELHANDLE_H
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#ifdef _WIN32
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#pragma once
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#endif
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#include "tier0/platform.h"
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namespace panorama
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{
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const uint64 k_ulInvalidPanelHandle64 = 0x00000000FFFFFFFF;
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//
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// Safe handle to a panel. To get pointer to actual panel, call IUIEngine::GetPanelPtr
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//
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struct PanelHandle_t
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{
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int32 m_iPanelIndex; // index into panel map
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uint32 m_unSerialNumber; // unique number used to ensure that panel at m_iPanelIndex is still the panel we originally pointed to
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bool operator<( const PanelHandle_t &rhs ) const
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{
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if ( m_iPanelIndex != rhs.m_iPanelIndex )
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return m_iPanelIndex < rhs.m_iPanelIndex;
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return m_unSerialNumber < rhs.m_unSerialNumber;
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}
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bool operator==( const PanelHandle_t &rhs ) const
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{
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return (m_iPanelIndex == rhs.m_iPanelIndex) && (m_unSerialNumber == rhs.m_unSerialNumber);
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}
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bool operator!=( const PanelHandle_t &rhs ) const
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{
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return !(*this == rhs);
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}
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static const PanelHandle_t &InvalidHandle()
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{
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static PanelHandle_t s_invalid = { k_ulInvalidPanelHandle64 >> 32, 0xffffffff & k_ulInvalidPanelHandle64 };
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return s_invalid;
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}
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};
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} // namespace panorama
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#endif // PANELHANDLE_H
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