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130 lines
4.6 KiB
C++
130 lines
4.6 KiB
C++
/****************************************************************************
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** Copyright (C) 2001-2006 Klarälvdalens Datakonsult AB. All rights reserved.
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**
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** This file is part of the KD Gantt library.
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**
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** This file may be distributed and/or modified under the terms of the
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** GNU General Public License version 2 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file.
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**
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** Licensees holding valid commercial KD Gantt licenses may use this file in
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** accordance with the KD Gantt Commercial License Agreement provided with
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** the Software.
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**
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** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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**
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** See http://www.kdab.net/kdgantt for
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** information about KD Gantt Commercial License Agreements.
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**
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** Contact info@kdab.net if any conditions of this
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** licensing are not clear to you.
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**
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**********************************************************************/
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#include "kdganttabstractgrid.h"
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#include "kdganttabstractgrid_p.h"
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using namespace KDGantt;
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/*!\class KDGantt::AbstractGrid kdganttabstractgrid.h KDGanttAbstractGrid
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* \ingroup KDGantt
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* \brief Abstract baseclass for grids. A grid is used to convert between
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* QModelIndex'es and gantt chart values (doubles) and to paint the
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* background and header of the view.
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*
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* \see KDGantt::DateTimeGrid
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*/
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/*! Constructor. Creates an AbstractGrid with parent \a parent.
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* The QObject parent is not used for anything internally. */
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AbstractGrid::AbstractGrid( QObject* parent )
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: QObject( parent ),
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_d( new Private )
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{
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}
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/*! Destructor. Does nothing */
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AbstractGrid::~AbstractGrid()
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{
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delete _d;
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}
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#define d d_func()
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/*! Sets the QAbstractItemModel used by this grid implementation.
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* This is called by the view, you should never need to call this
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* from client code. */
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void AbstractGrid::setModel( QAbstractItemModel* model )
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{
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d->model = model;
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}
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/*!\returns The QAbstractItemModel used by this grid */
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QAbstractItemModel* AbstractGrid::model() const
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{
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return d->model;
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}
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/*! Sets the root index used by this grid implementation.
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* This is called by the view, you should never need to call this
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* from client code. */
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void AbstractGrid::setRootIndex( const QModelIndex& idx )
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{
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d->root = idx;
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}
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/*!\returns the current root index for this grid */
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QModelIndex AbstractGrid::rootIndex() const
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{
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return d->root;
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}
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/*!\returns true if the startpoint is before the endpoint
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* of the constraint \a c.
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*/
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bool AbstractGrid::isSatisfiedConstraint( const Constraint& c ) const
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{
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// First check if the data is valid,
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// TODO: review if true is the right choice
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if ( !c.startIndex().isValid() || !c.endIndex().isValid() ) return true;
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Span ss = mapToChart( c.startIndex() );
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Span es = mapToChart( c.endIndex() );
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return ( ss.end() <= es.start() );
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}
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/*!\fn virtual Span AbstractGrid::mapToChart( const QModelIndex& idx ) const
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* Implement this to map from the data in the model to the location of
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* the corresponding item in the view.
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*/
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/*!\fn virtual bool AbstractGrid::mapFromChart( const Span& span, const QModelIndex& idx, const QList<Constraint>& constraints ) const
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* Implement this to update the model data based on the location of the item. Check
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* against the \a constraints list to make sure no hard constraints are violated by
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* writing back to the model.
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* \returns true if the update succeeded.
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*/
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/*!\fn virtual void AbstractGrid::paintGrid( QPainter* painter, const QRectF& sceneRect, const QRectF& exposedRect, AbstractRowController* rowController=0, QWidget* widget=0 )
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*
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* Implement this to paint the background of the view -- typically
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* with some grid lines.
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* \param painter -- the QPainter to paint with.
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* \param sceneRect -- the total bounding rectangle of the scene.
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* \param exposedRect -- the rectangle that needs to be painted.
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* \param rowController -- the row controller used by the view -- may be 0.
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* \param widget -- the widget used by the view -- may be 0.
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*/
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/*!\fn virtual void AbstractGrid::paintHeader( QPainter* painter, const QRectF& headerRect, const QRectF& exposedRect, qreal offset, QWidget* widget=0 )
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*
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* Implement this to paint the header part of the view.
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* \param painter -- the QPainter to paint with.
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* \param headerRect -- the total rectangle occupied by the header.
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* \param exposedRect -- the rectangle that needs to be painted.
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* \param offset -- the horizontal scroll offset of the view.
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* \param widget -- the widget used by the view -- may be 0.
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*/
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