ctkCheckableHeaderView.h

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00001 /*=========================================================================
00002 
00003   Library:   CTK
00004  
00005   Copyright (c) 2010  Kitware Inc.
00006 
00007   Licensed under the Apache License, Version 2.0 (the "License");
00008   you may not use this file except in compliance with the License.
00009   You may obtain a copy of the License at
00010 
00011       http://www.commontk.org/LICENSE
00012 
00013   Unless required by applicable law or agreed to in writing, software
00014   distributed under the License is distributed on an "AS IS" BASIS,
00015   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00016   See the License for the specific language governing permissions and
00017   limitations under the License.
00018  
00019 =========================================================================*/
00020 /*=========================================================================
00021 
00022    Program: ParaView
00023    Module:    $RCSfile: pqCheckableHeaderView.h,v $
00024 
00025    Copyright (c) 2005-2008 Sandia Corporation, Kitware Inc.
00026    All rights reserved.
00027 
00028    ParaView is a free software; you can redistribute it and/or modify it
00029    under the terms of the ParaView license version 1.2. 
00030 
00031    See License_v1.2.txt for the full ParaView license.
00032    A copy of this license can be obtained by contacting
00033    Kitware Inc.
00034    28 Corporate Drive
00035    Clifton Park, NY 12065
00036    USA
00037 
00038 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
00039 ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
00040 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
00041 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR
00042 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
00043 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
00044 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
00045 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
00046 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
00047 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
00048 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00049 
00050 =========================================================================*/
00051 
00052 #ifndef _ctkCheckableHeaderView_h
00053 #define _ctkCheckableHeaderView_h
00054 
00055 // Qt includes
00056 #include <QHeaderView>
00057 
00058 // CTK includes
00059 #include <ctkPimpl.h>
00060 
00061 #include "CTKWidgetsExport.h"
00062 
00063 class ctkCheckableHeaderViewPrivate;
00064 
00065 class CTK_WIDGETS_EXPORT ctkCheckableHeaderView : public QHeaderView
00066 {
00067   Q_OBJECT;
00068   Q_PROPERTY(bool propagateToItems READ propagateToItems WRITE setPropagateToItems);
00069 public:
00070   ctkCheckableHeaderView(Qt::Orientation orient, QWidget *parent=0);
00071   virtual ~ctkCheckableHeaderView();
00072 
00073   virtual void setModel(QAbstractItemModel *model);
00074   virtual void setRootIndex(const QModelIndex &index);
00075 
00080   bool isCheckable(int section)const;
00081 
00086   Qt::CheckState checkState(int section)const;
00087 
00092   bool checkState(int section,Qt::CheckState& checkState )const;
00093 
00100   virtual bool eventFilter(QObject *object, QEvent *e);
00101                                                       
00102   void setPropagateToItems(bool propagate);
00103   bool propagateToItems()const;
00104 
00105 public slots:
00108   void toggleCheckState(int section);
00112   void setCheckState(int section, Qt::CheckState checkState);
00113 
00114 private slots:
00115   void updateHeaderData(Qt::Orientation orient, int first, int last);
00116   void insertHeaderSection(const QModelIndex &parent, int first, int last);
00117   inline void updateHeaders();
00118   void updateHeadersFromItems(const QModelIndex& topLeft, const QModelIndex& bottomRight);
00119 
00120 protected:
00121   virtual void updateHeaders(int first, int last);
00122   virtual void initStyleSectionOption(QStyleOptionHeader *option, int section, QRect rect)const;
00123   virtual void mousePressEvent(QMouseEvent *e);
00124   virtual void mouseReleaseEvent(QMouseEvent *e);
00125   bool isPointInCheckBox(int section, QPoint pos)const;
00126 
00127 private:
00128   CTK_DECLARE_PRIVATE(ctkCheckableHeaderView);
00129 };
00130 
00131 //-----------------------------------------------------------------------------
00132 void ctkCheckableHeaderView::updateHeaders()
00133 {
00134   this->updateHeaders(0, this->count()-1);
00135 }
00136 
00137 #endif
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