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95 lines
2.7 KiB
95 lines
2.7 KiB
//========= 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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