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89 lines
3.7 KiB
C++
89 lines
3.7 KiB
C++
// Created on: 2017-06-16
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// Created by: Natalia ERMOLAEVA
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// Copyright (c) 2017 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifndef DFBrowser_TreeLevelLineModel_H
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#define DFBrowser_TreeLevelLineModel_H
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#include <inspector/TreeModel_ItemBase.hxx>
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#include <Standard.hxx>
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#include <Standard_WarningsDisable.hxx>
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#include <QAbstractTableModel>
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#include <QObject>
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#include <QList>
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#include <Standard_WarningsRestore.hxx>
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//! \class DFBrowser_TreeLevelLineModel
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//! Tree Model of tree line items. It is initialized by OCAF tree model index. Each element of the current model
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//! is an item of hierarchy of OCAF tree model index. So, on each level a label is presented, the last element may be
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//! an attribute. Information, presented for the item has no additional information (not as in OCAF tree model)
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class DFBrowser_TreeLevelLineModel : public QAbstractTableModel
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{
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public:
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//! Constructor
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DFBrowser_TreeLevelLineModel (QObject* theParent = 0) : QAbstractTableModel (theParent) {}
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//! Destructor
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virtual ~DFBrowser_TreeLevelLineModel() {}
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//! Resets the cached values
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void Reset() { myLevelItems.clear(); }
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//! Inits the model by the index
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//! \param theTreeIndex an OCAF tree model index
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Standard_EXPORT void Init (const QModelIndex& theTreeIndex);
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//! Returns true if the tree model index is filled
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bool IsInitialized() const { return myTreeIndex.isValid(); }
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//! Returns OCAF tree view model index on level defined by column of the parameter index
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//! \param theIndex a tree level view model index
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//! \return model index
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const QModelIndex& GetTreeViewIndex (const QModelIndex& theIndex) const
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{ return myLevelItems[theIndex.column()]; }
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//! Returns item information(short) for display role.
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//! \param theIndex a model index
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//! \param theRole a view role
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//! \return value interpreted depending on the given role
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Standard_EXPORT virtual QVariant data (const QModelIndex& theIndex,
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int theRole = Qt::DisplayRole) const Standard_OVERRIDE;
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//! Returns the header data for the given role and section in the header with the specified orientation.
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//! \param theSection the header section. For horizontal headers - column number, for vertical headers - row number.
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//! \param theOrientation a header orientation
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//! \param theRole a data role
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//! \return the header data
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Standard_EXPORT virtual QVariant headerData (int theSection, Qt::Orientation theOrientation,
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int theRole = Qt::DisplayRole) const Standard_OVERRIDE;
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//! Returns number of tree level line items = columns in table view
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virtual int columnCount (const QModelIndex& theParent = QModelIndex()) const Standard_OVERRIDE
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{ (void)theParent; return myLevelItems.size(); }
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//! Returns only one row in table view
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virtual int rowCount (const QModelIndex& theParent = QModelIndex()) const Standard_OVERRIDE
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{ (void)theParent; return 1; }
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private:
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QModelIndex myTreeIndex; //!< the current OCAF tree view model index
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QList<QModelIndex> myLevelItems; //!< cached parent indices of myTreeIndex for quick access to item information
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};
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#endif
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