KDGantt::ConstraintModel Class Reference

#include <kdganttconstraintmodel.h>

Inheritance diagram for KDGantt::ConstraintModel:

[legend]

Collaboration diagram for KDGantt::ConstraintModel:

[legend]

List of all members.

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Detailed Description

The ConstraintModel keeps track of the interdependencies between gantt items in a View.

Definition at line 35 of file kdganttconstraintmodel.h.

Signals
void	constraintAdded (const KDGantt::Constraint &)
void	constraintRemoved (const KDGantt::Constraint &)
Public Member Functions
void	addConstraint (const Constraint &c)
void	cleanup ()
void	clear ()
	ConstraintModel (QObject *parent=0)
QList< Constraint >	constraints () const
QList< Constraint >	constraintsForIndex (const QModelIndex &) const
bool	hasConstraint (const QModelIndex &s, const QModelIndex &e) const
bool	hasConstraint (const Constraint &c) const
bool	removeConstraint (const Constraint &c)
virtual	~ConstraintModel ()

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Constructor & Destructor Documentation

ConstraintModel::ConstraintModel

(

QObject *

parent = 0

)

[explicit]

Constructor. Creates an empty ConstraintModel with parent parent

Definition at line 72 of file kdganttconstraintmodel.cpp.

References StockDiagram::init().

    : QObject( parent ), _d( new Private )
{
    init();
}

ConstraintModel::~ConstraintModel

(

)

[virtual]

Destroys this ConstraintModel

Definition at line 86 of file kdganttconstraintmodel.cpp.

{
    delete _d;
}

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Member Function Documentation

void ConstraintModel::addConstraint

(

const Constraint &

c

)

Adds the constraint c to this ConstraintModel If the Constraint c is already in this ConstraintModel, nothing happens.

Definition at line 101 of file kdganttconstraintmodel.cpp.

References constraintAdded(), d, KDGantt::Constraint::endIndex(), hasConstraint(), and KDGantt::Constraint::startIndex().

Referenced by KDGantt::GraphicsView::addConstraint(), and KDAB_SCOPED_UNITTEST_SIMPLE().

{
    //int size = d->constraints.size();
    bool hasConstraint = d->constraints.contains( c );
    //d->constraints.insert( c );
    //if ( size != d->constraints.size() ) {
    if ( !hasConstraint ) {
        d->constraints.push_back( c );
        d->addConstraintToIndex( c.startIndex(), c );
        d->addConstraintToIndex( c.endIndex(), c );
        emit constraintAdded( c );
    }
}

void ConstraintModel::cleanup

(

)

Not used

Definition at line 148 of file kdganttconstraintmodel.cpp.

References d, KDGantt::Constraint::endIndex(), and KDGantt::Constraint::startIndex().

{
#if 0
    QSet<Constraint> orphans;
    Q_FOREACH( const Constraint& c, d->constraints ) {
        if ( !c.startIndex().isValid() || !c.endIndex().isValid() ) orphans.insert( c );
    }
    //qDebug() << "Constraint::cleanup() found" << orphans << "orphans";
    d->constraints.subtract( orphans );
#endif
}

void ConstraintModel::clear

(

)

Removes all Constraints from this model The signal constraintRemoved(const Constraint&) is emitted for every Constraint that is removed.

Definition at line 139 of file kdganttconstraintmodel.cpp.

References constraints(), and removeConstraint().

{
    QList<Constraint> lst = constraints();
    Q_FOREACH( const Constraint& c, lst ) {
        removeConstraint( c );
    }
}

void KDGantt::ConstraintModel::constraintAdded

(

const KDGantt::Constraint &

)

[signal]

Referenced by addConstraint().

void KDGantt::ConstraintModel::constraintRemoved

(

const KDGantt::Constraint &

)

[signal]

Referenced by removeConstraint().

QList< Constraint > ConstraintModel::constraints

(

)

const

Returns:

A list of all Constraints in this ConstraintModel.

Definition at line 163 of file kdganttconstraintmodel.cpp.

References d.

Referenced by clear(), KDAB_SCOPED_UNITTEST_SIMPLE(), and operator<<().

{
    //return d->constraints.toList();
    return d->constraints;
}

QList< Constraint > ConstraintModel::constraintsForIndex

(

const QModelIndex &

idx

)

const

Returns:

A list of all Constraints in this ConstraintModel that have an endpoint at idx.

Definition at line 172 of file kdganttconstraintmodel.cpp.

References d, KDGantt::Constraint::endIndex(), and KDGantt::Constraint::startIndex().

Referenced by KDAB_SCOPED_UNITTEST_SIMPLE().

{
    // TODO: @Steffen: Please comment on this assert, it's long and not obvious (Johannes)
    assert( !idx.isValid() || d->indexMap.isEmpty() || !d->indexMap.keys().front().model() || idx.model() == d->indexMap.keys().front().model() );
    if ( !idx.isValid() ) {
        // Because of a Qt bug we need to treat this as a special case
        QSet<Constraint> result;
        Q_FOREACH( Constraint c, d->constraints ) {
            if ( !c.startIndex().isValid() || !c.endIndex().isValid() ) result.insert( c );
        }
        return result.toList();
    } else {
        QList<Constraint> result;
        Q_FOREACH( Constraint c, d->constraints ) {
            if ( c.startIndex() == idx || c.endIndex() == idx ) result.push_back( c );
        }
        return result;
    }

    //return d->indexMap.values( idx );
}

bool KDGantt::ConstraintModel::hasConstraint	(	const QModelIndex &	s,
		const QModelIndex &	e
	)			const

Definition at line 66 of file kdganttconstraintmodel.h.

References hasConstraint().

                                                                                                 {
        return hasConstraint( Constraint( s, e ) );
    }

bool ConstraintModel::hasConstraint

(

const Constraint &

c

)

const

Returns true if a Constraint with start s and end e exists, otherwise false.

Definition at line 197 of file kdganttconstraintmodel.cpp.

References d.

Referenced by KDGantt::GraphicsView::addConstraint(), addConstraint(), hasConstraint(), and KDAB_SCOPED_UNITTEST_SIMPLE().

{
    /*
    // Because of a Qt bug we have to search like this
    Q_FOREACH( Constraint c2, d->constraints ) {
        if ( c==c2 ) return true;
    }
    return false;
    */
    return d->constraints.contains( c );
}

bool ConstraintModel::removeConstraint

(

const Constraint &

c

)

Removes the Constraint c from this ConstraintModel. If c was found and removed, the signal constraintRemoved(const Constraint&) is emitted.

Returns:

If c was found and removed, it returns true, otherwise it returns false.

Definition at line 122 of file kdganttconstraintmodel.cpp.

References constraintRemoved(), d, KDGantt::Constraint::endIndex(), and KDGantt::Constraint::startIndex().

Referenced by KDGantt::GraphicsView::addConstraint(), clear(), and KDAB_SCOPED_UNITTEST_SIMPLE().

{
    //qDebug() << "ConstraintModel::removeConstraint("<<c<<") from "<< d->constraints;
    bool rc = d->constraints.removeAll( c );
    //bool rc = d->constraints.remove( c );
    if ( rc ) {
        d->removeConstraintFromIndex( c.startIndex(), c );
        d->removeConstraintFromIndex( c.endIndex(), c );
        emit constraintRemoved( c );
    }
    return rc;
}

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The documentation for this class was generated from the following files:

• kdganttconstraintmodel.h
• kdganttconstraintmodel.cpp

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