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/****************************************************************************
**
** Copyright (C) 2016 NVIDIA Corporation.
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt 3D Studio.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef INCLUDED_SNAPPER_H
#define INCLUDED_SNAPPER_H 1
#pragma once
#include <set>
#include <vector>
class CSnapper
{
typedef std::set<long> TTimeList;
typedef std::vector<long> TOffsetList;
public:
CSnapper(double inTimeRatio = .1);
virtual ~CSnapper();
void AddTime(long inTime);
void AddPixelLocation(long inPixelLoc);
void SetSnappingKeyframes(bool inIsSnappingKeyframes);
bool IsSnappingKeyframes();
void SetSnappingSelectedKeyframes(bool inIsSnappingSelectedKeyframes);
bool IsSnappingSelectedKeyframes();
void Clear();
void SetVisibleArea(long inStartHeight, long inEndHeight);
void PushOffset(long inHeight);
void PopOffset();
bool IsVisible(long inPosition, long inHeight);
void SetTimeRatio(double inTimeRatio);
void SetPeriodicInterval(long inInterval);
bool InterpretTimeEx(long &ioTime, long inFlags);
long InterpretTime(long inTime, long inFlags);
void SetSnappingDistance(long inSnapDistance);
void BeginDrag(long inPosition, long inOffset = 0);
long ProcessDrag(long inTime, long inPosition, long inFlags);
void SetSource(void *inSource);
void *GetSource();
void SetTimeOffset(long inTimeOffset);
void SetStartEndTime(long theStartTime, long theEndTime);
void SetKeyFrameClicked(bool inKeyFrameClicked);
protected:
bool GetSnapTime(long &inTime, bool inShiftKeyDown);
long GetClosestPeriodicInterval(long inTime);
long m_theStartTime;
long m_theEndTime;
TTimeList m_Times;
TOffsetList m_Offsets;
double m_TimeRatio;
bool m_IsSnappingKeyframes;
bool m_IsSnappingSelectedKeyframes;
long m_Offset;
long m_StartHeight;
long m_EndHeight;
long m_SnapDistance;
long m_PeriodicInterval;
long m_InitialOffset;
long m_ObjectTimeOffset;
long m_TimeOffset;
bool m_KeyFrameClicked;
void *m_Source;
};
// Interface that will provider the info for snapping logic in the timebars and keyframes
class ISnappingListProvider
{
public:
virtual ~ISnappingListProvider() {}
virtual void PopulateSnappingList(CSnapper *inSnappingList) = 0;
};
#endif // INCLUDED_SNAPPER_H
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