KDGantt::Constraint Class Reference

A class used to represent a dependency. More...

#include <kdganttconstraint.h>

Public Types
enum	ConstraintDataRole {   ValidConstraintPen = Qt::UserRole,   InvalidConstraintPen }
typedef QMap< int, QVariant >	DataMap
enum	RelationType {   FinishStart = 0,   FinishFinish = 1,   StartStart = 2,   StartFinish = 3 }
enum	Type {   TypeSoft = 0,   TypeHard = 1 }

Public Member Functions
bool	compareIndexes (const Constraint &other) const
	Constraint ()
	Constraint (const QModelIndex &idx1, const QModelIndex &idx2, Type type=TypeSoft, RelationType relType=FinishStart, const DataMap &datamap=DataMap())
	Constraint (const Constraint &other)
QVariant	data (int role) const
QMap< int, QVariant >	dataMap () const
QDebug	debug (QDebug dbg) const
QModelIndex	endIndex () const
uint	hash () const
bool	operator!= (const Constraint &other) const
Constraint &	operator= (const Constraint &other)
bool	operator== (const Constraint &other) const
RelationType	relationType () const
void	setData (int role, const QVariant &value)
void	setDataMap (const QMap< int, QVariant > &datamap)
QModelIndex	startIndex () const
Type	type () const
	~Constraint ()

Detailed Description

A class used to represent a dependency.

Instances of this class represent a dependency between the data items pointed to by a start-QModelIndex and an end-QModelIndex.

Definition at line 38 of file kdganttconstraint.h.

Member Typedef Documentation

typedef QMap<int, QVariant> KDGantt::Constraint::DataMap

Definition at line 60 of file kdganttconstraint.h.

Member Enumeration Documentation

enum KDGantt::Constraint::ConstraintDataRole

Data roles used when specifying the pen to draw constraints with.

See also

setData

Enumerator
ValidConstraintPen
InvalidConstraintPen

Definition at line 54 of file kdganttconstraint.h.

enum KDGantt::Constraint::RelationType

Enumerator
FinishStart
FinishFinish
StartStart
StartFinish

Definition at line 46 of file kdganttconstraint.h.

enum KDGantt::Constraint::Type

This enum is unused for now.

Enumerator
TypeSoft
TypeHard

Definition at line 41 of file kdganttconstraint.h.

Constructor & Destructor Documentation

Constraint::Constraint

(

)

Default constructor, created an invalid constraint.

Definition at line 93 of file kdganttconstraint.cpp.

Referenced by KDAB_SCOPED_UNITTEST_SIMPLE().

Constraint::Constraint	(	const QModelIndex &	idx1,
		const QModelIndex &	idx2,
		Constraint::Type	type = TypeSoft,
		Constraint::RelationType	relationType = FinishStart,
		const DataMap &	datamap = DataMap()
	)

Constructor. Creates a dependency for idx2 on idx1.

Parameters

type	controls if the constraint is a soft one that is allowed to be broken (ie, go backwards in time) or a hard constraint that will not allow the user to move an item so that the constraint would have to go backwards. The default is TypeSoft.

Actually enforcing hard constraints is the responsibility of the AbstractGrid subclass used in the view.

Parameters

relationType

defines how the tasks depends on each other. relationType can be FinishStart (default), FinishFinish, StartStart or StartFinish.

Definition at line 77 of file kdganttconstraint.cpp.

References relationType(), and type().

Constraint::Constraint

(

const Constraint &

other

)

Copy-Constructor.

Definition at line 99 of file kdganttconstraint.cpp.

Constraint::~Constraint

(

)

Destructor

Definition at line 105 of file kdganttconstraint.cpp.

Member Function Documentation

bool Constraint::compareIndexes

(

const Constraint &

other

)

const

Definition at line 175 of file kdganttconstraint.cpp.

References endIndex(), and startIndex().

Referenced by KDGantt::ConstraintModel::hasConstraint(), and KDGantt::ConstraintModel::removeConstraint().

QVariant Constraint::data

(

int

role

)

const

Returns

The data associated with this index for the specified role.

Parameters

role	The role to fetch the data for.

See also

ConstraintDataRole

Definition at line 144 of file kdganttconstraint.cpp.

Referenced by KDGantt::ConstraintGraphicsItem::ganttToolTip(), and operator<<().

QMap< int, QVariant > Constraint::dataMap

(

)

const

Returns

all the data set on this constraint.

See also

setDataMap

Definition at line 169 of file kdganttconstraint.cpp.

Referenced by KDGantt::ConstraintModel::addConstraint(), KDGantt::ConstraintGraphicsItem::proxyConstraint(), and KDGantt::ConstraintProxy::proxyModel().

QDebug Constraint::debug

(

QDebug

dbg

)

const

Definition at line 203 of file kdganttconstraint.cpp.

Referenced by operator<<().

QModelIndex Constraint::endIndex

(

)

const

Returns

The constrained index

Definition at line 135 of file kdganttconstraint.cpp.

Referenced by KDGantt::ConstraintModel::addConstraint(), KDGantt::ConstraintModel::cleanup(), compareIndexes(), KDGantt::ConstraintModel::constraintsForIndex(), KDGantt::GraphicsScene::insertItem(), KDGantt::AbstractGrid::isSatisfiedConstraint(), KDGantt::DateTimeGrid::mapFromChart(), KDGantt::ConstraintGraphicsItem::proxyConstraint(), KDGantt::ConstraintProxy::proxyModel(), and KDGantt::ConstraintModel::removeConstraint().

uint Constraint::hash

(

)

const

Definition at line 191 of file kdganttconstraint.cpp.

References KDGantt::qHash().

Referenced by KDGantt::qHash().

bool KDGantt::Constraint::operator!=

(

const Constraint &

other

)

const

Definition at line 87 of file kdganttconstraint.h.

References d, and KDGantt::operator==().

Constraint & Constraint::operator=

(

const Constraint &

other

)

Assignment operator.

Definition at line 110 of file kdganttconstraint.cpp.

bool Constraint::operator==

(

const Constraint &

other

)

const

Compare two Constraint objects. Two Constraints are equal if the have the same start and end indexes

Definition at line 184 of file kdganttconstraint.cpp.

Constraint::RelationType Constraint::relationType

(

)

const

This is unused for now.

Definition at line 123 of file kdganttconstraint.cpp.

Referenced by Constraint(), KDGantt::ItemDelegate::constraintBoundingRect(), KDGantt::ItemDelegate::paintConstraintItem(), KDGantt::ConstraintGraphicsItem::proxyConstraint(), KDGantt::ConstraintProxy::proxyModel(), and KDGantt::GraphicsItem::removeEndConstraint().

void Constraint::setData	(	int	role,
		const QVariant &	value
	)

Set data on this index for the specified role.

Parameters

role	The role to set the data for.
value	The data to set on the index.

See also

ConstraintDataRole

Definition at line 154 of file kdganttconstraint.cpp.

void Constraint::setDataMap

(

const QMap< int, QVariant > &

datamap

)

Set data on this constraint to the keys/values in datamap. Clears any existing data from the constraint.

Definition at line 162 of file kdganttconstraint.cpp.

QModelIndex Constraint::startIndex

(

)

const

Returns

The dependency index

Definition at line 129 of file kdganttconstraint.cpp.

Referenced by KDGantt::ConstraintModel::addConstraint(), KDGantt::ConstraintModel::cleanup(), compareIndexes(), KDGantt::ConstraintModel::constraintsForIndex(), KDGantt::GraphicsScene::insertItem(), KDGantt::AbstractGrid::isSatisfiedConstraint(), KDGantt::DateTimeGrid::mapFromChart(), KDGantt::ConstraintGraphicsItem::proxyConstraint(), KDGantt::ConstraintProxy::proxyModel(), and KDGantt::ConstraintModel::removeConstraint().

Constraint::Type Constraint::type

(

)

const

This is unused for now.

Definition at line 117 of file kdganttconstraint.cpp.

Referenced by Constraint(), KDAB_SCOPED_UNITTEST_SIMPLE(), KDGantt::DateTimeGrid::mapFromChart(), KDGantt::ConstraintGraphicsItem::proxyConstraint(), and KDGantt::ConstraintProxy::proxyModel().

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

• kdganttconstraint.h
• kdganttconstraint.cpp