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96 lines
2.7 KiB
C++
96 lines
2.7 KiB
C++
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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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//=============================================================================
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#include "movieobjects/dmetimeframe.h"
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#include "tier0/dbg.h"
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#include "datamodel/dmelementfactoryhelper.h"
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// memdbgon must be the last include file in a .cpp file!!!
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#include "tier0/memdbgon.h"
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//-----------------------------------------------------------------------------
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// Class factory
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//-----------------------------------------------------------------------------
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IMPLEMENT_ELEMENT_FACTORY( DmeTimeFrame, CDmeTimeFrame );
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//-----------------------------------------------------------------------------
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// Constructor, destructor
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//-----------------------------------------------------------------------------
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void CDmeTimeFrame::OnConstruction()
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{
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m_Start .InitAndSet( this, "startTime", 0, FATTRIB_HAS_CALLBACK );
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m_Duration.InitAndSet( this, "durationTime", 0, FATTRIB_HAS_CALLBACK );
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m_Offset .InitAndSet( this, "offsetTime", 0 );
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m_Scale .InitAndSet( this, "scale", 1.0f );
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}
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void CDmeTimeFrame::OnDestruction()
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{
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}
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void CDmeTimeFrame::OnAttributeChanged( CDmAttribute *pAttribute )
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{
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BaseClass::OnAttributeChanged( pAttribute );
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// notify parent clip that the time has changed
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if ( pAttribute == m_Start.GetAttribute() || pAttribute == m_Duration.GetAttribute() )
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{
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InvokeOnAttributeChangedOnReferrers( GetHandle(), pAttribute );
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}
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}
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void CDmeTimeFrame::SetEndTime( DmeTime_t endTime, bool bChangeDuration )
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{
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if ( bChangeDuration )
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{
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m_Duration = endTime.GetTenthsOfMS() - m_Start;
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}
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else
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{
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m_Start = endTime.GetTenthsOfMS() - m_Duration;
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}
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}
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void CDmeTimeFrame::SetTimeScale( float flScale, DmeTime_t scaleCenter, bool bChangeDuration )
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{
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#ifdef _DEBUG
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DmeTime_t preCenterTime = ToChildMediaTime( scaleCenter, false );
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#endif
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float ratio = m_Scale / flScale;
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int t = scaleCenter.GetTenthsOfMS() - m_Start;
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if ( bChangeDuration )
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{
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int newDuration = int( m_Duration * ratio );
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if ( scaleCenter.GetTenthsOfMS() != m_Start )
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{
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int newStart = int( ( m_Start - scaleCenter.GetTenthsOfMS() ) * ratio + scaleCenter.GetTenthsOfMS() );
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SetStartTime( DmeTime_t( newStart ) );
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}
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int newStart = m_Start;
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int newOffset = int( ( t + m_Offset ) * ratio + newStart - scaleCenter.GetTenthsOfMS() );
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SetTimeOffset( DmeTime_t( newOffset ) );
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SetDuration( DmeTime_t( newDuration ) );
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}
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else
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{
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int newOffset = int( ( t + m_Offset ) * ratio - t );
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SetTimeOffset( DmeTime_t( newOffset ) );
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}
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SetTimeScale( flScale );
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#ifdef _DEBUG
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DmeTime_t postCenterTime = ToChildMediaTime( scaleCenter, false );
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Assert( abs( preCenterTime - postCenterTime ) <= DMETIME_MINDELTA );
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#endif
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}
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