diff options
Diffstat (limited to 'src/Authoring/Qt3DStudio/DragAndDrop/TimelineDropTarget.cpp')
| -rw-r--r-- | src/Authoring/Qt3DStudio/DragAndDrop/TimelineDropTarget.cpp | 223 |
1 files changed, 223 insertions, 0 deletions
diff --git a/src/Authoring/Qt3DStudio/DragAndDrop/TimelineDropTarget.cpp b/src/Authoring/Qt3DStudio/DragAndDrop/TimelineDropTarget.cpp new file mode 100644 index 00000000..f0dc9c85 --- /dev/null +++ b/src/Authoring/Qt3DStudio/DragAndDrop/TimelineDropTarget.cpp @@ -0,0 +1,223 @@ +/**************************************************************************** +** +** Copyright (C) 1999-2002 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. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "Qt3DSCommonPrecompile.h" +#include "TimelineDropTarget.h" +#include "StudioApp.h" +#include "DropSource.h" +#include "HotKeys.h" +#include "Core.h" +#include "Doc.h" +#include "IDropTargetHelper.h" +#include "GraphUtils.h" +#include "Qt3DSDMStudioSystem.h" +#include "ClientDataModelBridge.h" +#include "Qt3DSDMSlides.h" + +// Timeline stuff + +//=============================================================================== +/** + * This get called on every DragWithin. + * Note: the source will validate the target instead of the otherway around. + * This is because the DropSource knows how to get information from itself without + * creating an asset. This is mainly for DropSources that have a lazy creation idiom. + * like files. + * @param the DropSource in question. + * @return true if the DropSource likes the DropTarget. + */ +bool CTimeLineDropTarget::Accept(CDropSource &inSource) +{ + bool theDropFlag = inSource.ValidateTarget(this); + return theDropFlag; +} + +//=============================================================================== +/** + * This is where it actually happens. + * Note: At this point either everything should be verified, and setup in the dropsource. + * Then the only thing left to do is to get the Assets and move/copy or connect them. + * Or the dropsource needs the target to perform the actual drop. + * Note that if the Control key is depressed, the start time follows the current view time( + *i.e. playhead position ) + * + * @param inSource the Object in question. + * @return true if the drop was successful . + */ +bool CTimeLineDropTarget::Drop(CDropSource &inSource) +{ + qt3dsdm::Qt3DSDMInstanceHandle theTargetInstance = GetInstance(); + + if (theTargetInstance.Valid()) { + CDoc *theDoc = g_StudioApp.GetCore()->GetDoc(); + qt3dsdm::ISlideSystem *theSlideSystem = theDoc->GetStudioSystem()->GetSlideSystem(); + qt3dsdm::Qt3DSDMSlideHandle theSlide = theDoc->GetActiveSlide(); + if (!theSlideSystem->IsMasterSlide(theSlide) + && (inSource.GetCurrentFlags() & CHotKeys::MODIFIER_ALT)) { + if (CanAddToMaster()) { + qt3dsdm::Qt3DSDMSlideHandle theMasterSlideHandle = + theSlideSystem->GetMasterSlide(theSlide); + if (theMasterSlideHandle.Valid()) + theSlide = theMasterSlideHandle; + } + } + CCmd *theCmd = inSource.GenerateAssetCommand(theTargetInstance, m_Destination, theSlide); + if (theCmd) + g_StudioApp.GetCore()->ExecuteCommand(theCmd); + } + + return true; +} + +//=============================================================================== +/** + * This will get the objec ttype from the Asset. + * Note: The asset can change all of the time, so i always ask the asset for its type. + * @return the Studio object type. + */ +long CTimeLineDropTarget::GetObjectType() +{ + qt3dsdm::Qt3DSDMInstanceHandle theTargetInstance = GetTargetInstance(); + if (theTargetInstance.Valid()) { + CClientDataModelBridge *theBridge = + g_StudioApp.GetCore()->GetDoc()->GetStudioSystem()->GetClientDataModelBridge(); + return theBridge->GetObjectType(theTargetInstance); + } + + return m_ObjectType; +} + +//=============================================================================== +/** + * Check to see if the Asset is a relative of our asset. + * @return true if the inAsset is a parent grandparent...etc. of this asset. + */ +bool CTimeLineDropTarget::IsRelative(qt3dsdm::Qt3DSDMInstanceHandle inInstance) +{ + bool theReturn = false; ///< Default return value. + qt3dsdm::Qt3DSDMInstanceHandle theThisInstance = GetInstance(); + + // This will check to see if the inAsset is already some sort of parent grandparent....etc. + if (theThisInstance.Valid()) + theReturn = IsAscendant(theThisInstance, inInstance, + g_StudioApp.GetCore()->GetDoc()->GetAssetGraph()); + + return theReturn; +} + +//=============================================================================== +/** + * Check to see if the inAsset is our asset. + * @param inAsset The Asset to check. + * @return true if we are the same. + */ +bool CTimeLineDropTarget::IsSelf(qt3dsdm::Qt3DSDMInstanceHandle inInstance) +{ + qt3dsdm::Qt3DSDMInstanceHandle theThisInstance = GetInstance(); + // true if self..... + return (theThisInstance == inInstance); +} + +//=============================================================================== +/** + * This method is used to detirmine validity for dropping on Master items. + * We do not allow Master items to be dropped on non-master targets because + * it does not make any hierarchical sense. Also checks for NULL and Scene object. + * (The scene object reports as a master object so that we can re-arrange layers (On the master + *slide).) + * Changed checking for scene to checking for root object, which may be a component. This + * would allow for the root component (as in edit component) to re-arrange its children, even if + *either + * party is not a master. + * @param inAsset The Asset to check. + * @return true if we are the same. + */ +bool CTimeLineDropTarget::IsMaster() +{ + if (!m_Instance.Valid()) + return true; + else if (m_Instance == g_StudioApp.GetCore()->GetDoc()->GetActiveRootInstance()) + return true; + else { + qt3dsdm::ISlideSystem *theSlideSystem = + g_StudioApp.GetCore()->GetDoc()->GetStudioSystem()->GetSlideSystem(); + qt3dsdm::Qt3DSDMSlideHandle theSlide = theSlideSystem->GetAssociatedSlide(m_Instance); + return theSlideSystem->IsMasterSlide(theSlide); + } +} + +void CTimeLineDropTarget::SetDestination(EDROPDESTINATION inDestination) +{ + m_Destination = inDestination; +} + +EDROPDESTINATION CTimeLineDropTarget::GetDestination() const +{ + return m_Destination; +} + +//=============================================================================== +/** + * Figure out the destination (parent) asset that the drop is to occur. + * In the case that the drop occurs ON this asset, then the to-be-dropped asset becomes a child + *of m_Asset + * Otherwise, this m_Asset ends up being a sibling + */ +qt3dsdm::Qt3DSDMInstanceHandle CTimeLineDropTarget::GetTargetInstance() +{ + qt3dsdm::Qt3DSDMInstanceHandle theInstance = GetInstance(); + if (!theInstance.Valid()) + return 0; + + CClientDataModelBridge *theBridge = + g_StudioApp.GetCore()->GetDoc()->GetStudioSystem()->GetClientDataModelBridge(); + bool theIsActiveComponent = false; + bool theIsComponent = (theBridge->GetObjectType(theInstance) == OBJTYPE_COMPONENT); + if (theIsComponent) + theIsActiveComponent = theBridge->IsActiveComponent(theInstance); + + // If the drop destination is ON, it will be valid if this is not a component or it's in the + // component timeline + if (m_Destination == EDROPDESTINATION_ON) { + if (!theIsComponent || theIsActiveComponent) + return theInstance; + else + return 0; + } + + // if target is a component, and we want to insert it above/below, and we are viewing this + // component, then it's an invalid operation + // thus set the target to 0. + if (theIsActiveComponent) + return 0; + + return theBridge->GetParentInstance(theInstance); +} + +// LASTTIMELINE RELATED CODE |