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105 lines
3.9 KiB
C++
105 lines
3.9 KiB
C++
/*=========================================================================
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Program: ParaView
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Module: pqSelectionAdaptor.h
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Copyright (c) 2005-2008 Sandia Corporation, Kitware Inc.
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All rights reserved.
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ParaView is a free software; you can redistribute it and/or modify it
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under the terms of the ParaView license version 1.2.
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See License_v1.2.txt for the full ParaView license.
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A copy of this license can be obtained by contacting
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Kitware Inc.
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28 Corporate Drive
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Clifton Park, NY 12065
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USA
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR
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CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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=========================================================================*/
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#ifndef pqSelectionAdaptor_h
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#define pqSelectionAdaptor_h
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#include "pqComponentsModule.h"
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#include <QObject>
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#include <QItemSelectionModel> //need for qtSelectionFlags
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class pqServerManagerModelItem;
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class QAbstractItemModel;
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class QModelIndex;
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/// pqSelectionAdaptor is the abstract base class for an adaptor that connects a
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/// QItemSelectionModel to pqActiveObjects making it possible to update the
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/// pqActiveObjects source selection when the QItemSelectionModel changes and
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/// vice-versa.
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/// Subclass typically only need to implement mapToItem() and mapFromItem().
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class PQCOMPONENTS_EXPORT pqSelectionAdaptor : public QObject
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{
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Q_OBJECT
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public:
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virtual ~pqSelectionAdaptor();
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/// Returns a pointer to the QItemSelectionModel.
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QItemSelectionModel* getQSelectionModel() const
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{ return this->QSelectionModel; }
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protected:
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pqSelectionAdaptor(QItemSelectionModel* pipelineSelectionModel);
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/// Maps a pqServerManagerModelItem to an index in the QAbstractItemModel.
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virtual QModelIndex mapFromItem(pqServerManagerModelItem* item) const = 0;
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/// Maps a QModelIndex to a pqServerManagerModelItem.
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virtual pqServerManagerModelItem* mapToItem(const QModelIndex& index) const =0;
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/// Returns the QAbstractItemModel used by the QSelectionModel.
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/// If QSelectionModel uses a QAbstractProxyModel, this method skips
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/// over all such proxy models and returns the first non-proxy model
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/// encountered.
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const QAbstractItemModel* getQModel() const;
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protected slots:
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/// called when the selection in the Qt-model changes.
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virtual void selectionChanged();
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/// called when the ServerManager level selection (or current) changes.
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virtual void currentProxyChanged();
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virtual void proxySelectionChanged();
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/// subclasses can override this method to provide model specific selection
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/// overrides such as QItemSelection::Rows or QItemSelection::Columns etc.
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virtual QItemSelectionModel::SelectionFlag qtSelectionFlags() const
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{ return QItemSelectionModel::NoUpdate; }
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private:
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/// Given a QModelIndex for the QAbstractItemModel under the QItemSelectionModel,
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/// this returns the QModelIndex for the inner most non-proxy
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/// QAbstractItemModel.
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QModelIndex mapToSource(const QModelIndex& inIndex) const;
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/// Given a QModelIndex for the innermost non-proxy QAbstractItemModel,
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/// this returns the QModelIndex for the QAbstractItemModel under the
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/// QItemSelectionModel.
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QModelIndex mapFromSource(const QModelIndex& inIndex,
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const QAbstractItemModel* model) const;
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QItemSelectionModel* QSelectionModel;
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bool IgnoreSignals;
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};
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#endif
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