KDGantt::Constraint Class Reference

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

#include <kdganttconstraint.h>

Public Types
enum	ConstraintDataRole { ValidConstraintPen = Qt::UserRole , InvalidConstraintPen }
	Data roles used when specifying the pen to draw constraints with. More...
enum	RelationType { FinishStart = 0 , FinishFinish = 1 , StartStart = 2 , StartFinish = 3 }
enum	Type { TypeSoft = 0 , TypeHard = 1 }
	This enum is unused for now. More...

Public Member Functions
	Constraint ()
	Default constructor, created an invalid constraint. More...
	Constraint (const Constraint &other)
	Copy-Constructor. More...
	Constraint (const QModelIndex &idx1, const QModelIndex &idx2, Type type=TypeSoft, RelationType relType=FinishStart, const DataMap &datamap=DataMap())
	Constructor. More...
	~Constraint ()
	Destructor. More...
bool	compareIndexes (const Constraint &other) const
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)
	Assignment operator. More...
bool	operator== (const Constraint &other) const
	Compare two Constraint objects. More...
RelationType	relationType () const
	This is unused for now. More...
void	setData (int role, const QVariant &value)
	Set data on this index for the specified role. More...
void	setDataMap (const QMap< int, QVariant > &datamap)
	Set data on this constraint to the keys/values in datamap. More...
QModelIndex	startIndex () const
Type	type () const
	This is unused for now. More...

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 28 of file kdganttconstraint.h.

Member Enumeration Documentation

ConstraintDataRole

enum KDGantt::Constraint::ConstraintDataRole

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

See also

setData

Enumerator
ValidConstraintPen
InvalidConstraintPen

Definition at line 46 of file kdganttconstraint.h.

RelationType

enum KDGantt::Constraint::RelationType

Enumerator
FinishStart
FinishFinish
StartStart
StartFinish

Definition at line 38 of file kdganttconstraint.h.

Type

enum KDGantt::Constraint::Type

This enum is unused for now.

Enumerator
TypeSoft
TypeHard

Definition at line 33 of file kdganttconstraint.h.

Constructor & Destructor Documentation

Constraint() [1/3]

Constraint::Constraint

(

)

Default constructor, created an invalid constraint.

Definition at line 79 of file kdganttconstraint.cpp.

Constraint() [2/3]

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 63 of file kdganttconstraint.cpp.

References relationType(), and type().

Constraint() [3/3]

Constraint::Constraint

(

const Constraint &

other

)

Copy-Constructor.

Definition at line 85 of file kdganttconstraint.cpp.

~Constraint()

Constraint::~Constraint

(

)

Destructor.

Definition at line 91 of file kdganttconstraint.cpp.

Member Function Documentation

compareIndexes()

bool Constraint::compareIndexes

(

const Constraint &

other

)

const

Definition at line 160 of file kdganttconstraint.cpp.

References endIndex(), and startIndex().

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

data()

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 130 of file kdganttconstraint.cpp.

Referenced by KDGantt::ConstraintGraphicsItem::ganttToolTip().

dataMap()

QMap< int, QVariant > Constraint::dataMap

(

)

const

Returns

all the data set on this constraint.

See also

setDataMap

Definition at line 155 of file kdganttconstraint.cpp.

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

debug()

QDebug Constraint::debug

(

QDebug

dbg

)

const

Definition at line 189 of file kdganttconstraint.cpp.

Referenced by operator<<().

endIndex()

QModelIndex Constraint::endIndex

(

)

const

Returns

The constrained index

Definition at line 121 of file kdganttconstraint.cpp.

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

hash()

uint Constraint::hash

(

)

const

Definition at line 177 of file kdganttconstraint.cpp.

References KDGantt::qHash().

Referenced by KDGantt::qHash().

operator!=()

bool KDGantt::Constraint::operator!= ( const Constraint &  other ) const

inline

Definition at line 77 of file kdganttconstraint.h.

References KDGantt::operator==().

operator=()

Constraint & Constraint::operator=

(

const Constraint &

other

)

Assignment operator.

Definition at line 96 of file kdganttconstraint.cpp.

operator==()

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 169 of file kdganttconstraint.cpp.

relationType()

Constraint::RelationType Constraint::relationType

(

)

const

This is unused for now.

Definition at line 109 of file kdganttconstraint.cpp.

Referenced by Constraint(), KDGantt::GraphicsItem::addEndConstraint(), KDGantt::GraphicsItem::addStartConstraint(), KDGantt::ItemDelegate::constraintBoundingRect(), KDGantt::ItemDelegate::paintConstraintItem(), and KDGantt::ConstraintGraphicsItem::proxyConstraint().

setData()

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 140 of file kdganttconstraint.cpp.

setDataMap()

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 148 of file kdganttconstraint.cpp.

startIndex()

QModelIndex Constraint::startIndex

(

)

const

Returns

The dependency index

Definition at line 115 of file kdganttconstraint.cpp.

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

type()

Constraint::Type Constraint::type

(

)

const

This is unused for now.

Definition at line 103 of file kdganttconstraint.cpp.

Referenced by Constraint(), KDAB_SCOPED_UNITTEST_SIMPLE(), and KDGantt::ConstraintGraphicsItem::proxyConstraint().

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

• kdganttconstraint.h
• kdganttconstraint.cpp