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139 lines
3.5 KiB
C++
139 lines
3.5 KiB
C++
/*
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* Copyright (c) Contributors to the Open 3D Engine Project.
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* For complete copyright and license terms please see the LICENSE at the root of this distribution.
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*
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* SPDX-License-Identifier: Apache-2.0 OR MIT
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*
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*/
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#include "EditorDefs.h"
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#include "DeepSelection.h"
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// Editor
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#include "Objects/BaseObject.h"
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//! Functor for sorting selected objects on deep selection mode.
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struct NearDistance
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{
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NearDistance(){}
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bool operator()(const CDeepSelection::RayHitObject& lhs, const CDeepSelection::RayHitObject& rhs) const
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{
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return lhs.distance < rhs.distance;
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}
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};
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//-----------------------------------------------------------------------------
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CDeepSelection::CDeepSelection()
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: m_Mode(DSM_NONE)
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, m_previousMode(DSM_NONE)
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, m_CandidateObjectCount(0)
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, m_CurrentSelectedPos(-1)
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{
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m_LastPickPoint = QPoint(-1, -1);
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}
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//-----------------------------------------------------------------------------
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CDeepSelection::~CDeepSelection()
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{
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}
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//-----------------------------------------------------------------------------
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void CDeepSelection::Reset(bool bResetLastPick)
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{
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for (int i = 0; i < m_CandidateObjectCount; ++i)
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{
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m_RayHitObjects[i].object->ClearFlags(OBJFLAG_NO_HITTEST);
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}
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m_CandidateObjectCount = 0;
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m_CurrentSelectedPos = -1;
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m_RayHitObjects.clear();
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if (bResetLastPick)
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{
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m_LastPickPoint = QPoint(-1, -1);
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}
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}
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//-----------------------------------------------------------------------------
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void CDeepSelection::AddObject(float distance, CBaseObject* pObj)
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{
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m_RayHitObjects.push_back(RayHitObject(distance, pObj));
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}
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//-----------------------------------------------------------------------------
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bool CDeepSelection::OnCycling (const QPoint& pt)
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{
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QPoint diff = m_LastPickPoint - pt;
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LONG epsilon = 2;
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m_LastPickPoint = pt;
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if (abs(diff.x()) < epsilon && abs(diff.y()) < epsilon)
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{
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return true;
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}
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else
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{
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return false;
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}
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}
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//-----------------------------------------------------------------------------
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void CDeepSelection::ExcludeHitTest(int except)
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{
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int nExcept = except % m_CandidateObjectCount;
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for (int i = 0; i < m_CandidateObjectCount; ++i)
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{
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m_RayHitObjects[i].object->SetFlags(OBJFLAG_NO_HITTEST);
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}
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m_RayHitObjects[nExcept].object->ClearFlags(OBJFLAG_NO_HITTEST);
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}
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//-----------------------------------------------------------------------------
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int CDeepSelection::CollectCandidate(float fMinDistance, float fRange)
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{
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m_CandidateObjectCount = 0;
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if (!m_RayHitObjects.empty())
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{
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std::sort(m_RayHitObjects.begin(), m_RayHitObjects.end(), NearDistance());
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for (std::vector<CDeepSelection::RayHitObject>::iterator itr = m_RayHitObjects.begin();
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itr != m_RayHitObjects.end(); ++itr)
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{
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if (itr->distance - fMinDistance < fRange)
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{
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++m_CandidateObjectCount;
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}
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else
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{
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break;
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}
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}
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}
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return m_CandidateObjectCount;
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}
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//-----------------------------------------------------------------------------
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CBaseObject* CDeepSelection::GetCandidateObject(int index)
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{
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m_CurrentSelectedPos = index % m_CandidateObjectCount;
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return m_RayHitObjects[m_CurrentSelectedPos].object;
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}
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//-----------------------------------------------------------------------------
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//!
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void CDeepSelection::SetMode(EDeepSelectionMode mode)
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{
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m_previousMode = m_Mode;
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m_Mode = mode;
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}
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