KDGantt::ItemDelegate Class Reference

Class used to render gantt items in a KDGantt::GraphicsView. More...

#include <KDGanttItemDelegate>

Inheritance diagram for KDGantt::ItemDelegate:

Collaboration diagram for KDGantt::ItemDelegate:

Public Types
enum	InteractionState {   State_None = 0 , State_Move , State_ExtendLeft , State_ExtendRight ,   State_DragConstraint }
	This enum is used for communication between the view and the delegate about user interaction with gantt items. More...
Public Types inherited from QAbstractItemDelegate
enum	EndEditHint

Public Member Functions
	ItemDelegate (QObject *parent=nullptr)
	Constructor.
	~ItemDelegate () override
	Destructor.
virtual QRectF	constraintBoundingRect (const QPointF &start, const QPointF &end, const Constraint &constraint) const
QBrush	defaultBrush (ItemType type) const
QPen	defaultPen (ItemType type) const
virtual InteractionState	interactionStateFor (const QPointF &pos, const StyleOptionGanttItem &opt, const QModelIndex &idx) const
virtual Span	itemBoundingSpan (const StyleOptionGanttItem &opt, const QModelIndex &idx) const
virtual void	paintConstraintItem (QPainter *p, const QStyleOptionGraphicsItem &opt, const QPointF &start, const QPointF &end, const Constraint &constraint)
	Paints the constraint between points start and end using painter and opt.
virtual void	paintGanttItem (QPainter *p, const StyleOptionGanttItem &opt, const QModelIndex &idx)
	Paints the gantt item idx using painter and opt.
void	setDefaultBrush (ItemType type, const QBrush &brush)
	Sets the default brush used for items of type type to brush.
void	setDefaultPen (ItemType type, const QPen &pen)
	Sets the default pen used for items of type type to pen.
virtual QString	toolTip (const QModelIndex &idx) const
Public Member Functions inherited from QItemDelegate
	QItemDelegate (QObject *parent)
virtual	~QItemDelegate ()
virtual QWidget *	createEditor (QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const const override
bool	hasClipping () const const
QItemEditorFactory *	itemEditorFactory () const const
virtual void	paint (QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const const override
void	setClipping (bool clip)
virtual void	setEditorData (QWidget *editor, const QModelIndex &index) const const override
void	setItemEditorFactory (QItemEditorFactory *factory)
virtual void	setModelData (QWidget *editor, QAbstractItemModel *model, const QModelIndex &index) const const override
virtual QSize	sizeHint (const QStyleOptionViewItem &option, const QModelIndex &index) const const override
virtual void	updateEditorGeometry (QWidget *editor, const QStyleOptionViewItem &option, const QModelIndex &index) const const override
Public Member Functions inherited from QAbstractItemDelegate
	QAbstractItemDelegate (QObject *parent)
virtual	~QAbstractItemDelegate ()
void	closeEditor (QWidget *editor, QAbstractItemDelegate::EndEditHint hint)
void	commitData (QWidget *editor)
virtual void	destroyEditor (QWidget *editor, const QModelIndex &index) const const
virtual bool	helpEvent (QHelpEvent *event, QAbstractItemView *view, const QStyleOptionViewItem &option, const QModelIndex &index)
void	sizeHintChanged (const QModelIndex &index)
Public Member Functions inherited from QObject
	QObject (QObject *parent)
virtual	~QObject ()
bool	blockSignals (bool block)
const QObjectList &	children () const const
QMetaObject::Connection	connect (const QObject *sender, const char *signal, const char *method, Qt::ConnectionType type) const const
void	deleteLater ()
void	destroyed (QObject *obj)
bool	disconnect (const char *signal, const QObject *receiver, const char *method) const const
bool	disconnect (const QObject *receiver, const char *method) const const
void	dumpObjectInfo ()
void	dumpObjectInfo () const const
void	dumpObjectTree ()
void	dumpObjectTree () const const
QList< QByteArray >	dynamicPropertyNames () const const
virtual bool	event (QEvent *e)
T	findChild (const QString &name, Qt::FindChildOptions options) const const
QList< T >	findChildren (const QRegExp &regExp, Qt::FindChildOptions options) const const
QList< T >	findChildren (const QRegularExpression &re, Qt::FindChildOptions options) const const
QList< T >	findChildren (const QString &name, Qt::FindChildOptions options) const const
bool	inherits (const char *className) const const
void	installEventFilter (QObject *filterObj)
bool	isWidgetType () const const
bool	isWindowType () const const
void	killTimer (int id)
virtual const QMetaObject *	metaObject () const const
void	moveToThread (QThread *targetThread)
QString	objectName () const const
void	objectNameChanged (const QString &objectName)
QObject *	parent () const const
QVariant	property (const char *name) const const
	Q_CLASSINFO (Name, Value)
	Q_DISABLE_COPY (Class)
	Q_DISABLE_COPY_MOVE (Class)
	Q_DISABLE_MOVE (Class)
	Q_EMIT Q_EMIT
	Q_ENUM (...)
	Q_ENUM_NS (...)
	Q_ENUMS (...)
	Q_FLAG (...)
	Q_FLAG_NS (...)
	Q_FLAGS (...)
	Q_GADGET Q_GADGET
	Q_INTERFACES (...)
	Q_INVOKABLE Q_INVOKABLE
	Q_NAMESPACE Q_NAMESPACE
	Q_NAMESPACE_EXPORT (EXPORT_MACRO)
	Q_OBJECT Q_OBJECT
	Q_PROPERTY (...)
	Q_REVISION Q_REVISION
	Q_SET_OBJECT_NAME (Object)
	Q_SIGNAL Q_SIGNAL
	Q_SIGNALS Q_SIGNALS
	Q_SLOT Q_SLOT
	Q_SLOTS Q_SLOTS
T	qFindChild (const QObject *obj, const QString &name)
QList< T >	qFindChildren (const QObject *obj, const QRegExp &regExp)
QList< T >	qFindChildren (const QObject *obj, const QString &name)
T	qobject_cast (const QObject *object)
T	qobject_cast (QObject *object)
	QT_NO_NARROWING_CONVERSIONS_IN_CONNECT QT_NO_NARROWING_CONVERSIONS_IN_CONNECT
void	removeEventFilter (QObject *obj)
void	setObjectName (const QString &name)
void	setParent (QObject *parent)
bool	setProperty (const char *name, const QVariant &value)
bool	signalsBlocked () const const
int	startTimer (int interval, Qt::TimerType timerType)
int	startTimer (std::chrono::milliseconds time, Qt::TimerType timerType)
QThread *	thread () const const

Protected Member Functions
QPolygonF	finishFinishArrow (const QPointF &start, const QPointF &end) const
QPolygonF	finishFinishLine (const QPointF &start, const QPointF &end) const
QPolygonF	finishStartArrow (const QPointF &start, const QPointF &end) const
QPolygonF	finishStartLine (const QPointF &start, const QPointF &end) const
void	paintFinishFinishConstraint (QPainter *p, const QStyleOptionGraphicsItem &opt, const QPointF &start, const QPointF &end, const Constraint &constraint)
void	paintFinishStartConstraint (QPainter *p, const QStyleOptionGraphicsItem &opt, const QPointF &start, const QPointF &end, const Constraint &constraint)
void	paintStartFinishConstraint (QPainter *p, const QStyleOptionGraphicsItem &opt, const QPointF &start, const QPointF &end, const Constraint &constraint)
void	paintStartStartConstraint (QPainter *p, const QStyleOptionGraphicsItem &opt, const QPointF &start, const QPointF &end, const Constraint &constraint)
QPolygonF	startFinishArrow (const QPointF &start, const QPointF &end) const
QPolygonF	startFinishLine (const QPointF &start, const QPointF &end) const
QPolygonF	startStartArrow (const QPointF &start, const QPointF &end) const
QPolygonF	startStartLine (const QPointF &start, const QPointF &end) const
Protected Member Functions inherited from QItemDelegate
void	drawBackground (QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const const
virtual void	drawCheck (QPainter *painter, const QStyleOptionViewItem &option, const QRect &rect, Qt::CheckState state) const const
virtual void	drawDecoration (QPainter *painter, const QStyleOptionViewItem &option, const QRect &rect, const QPixmap &pixmap) const const
virtual void	drawDisplay (QPainter *painter, const QStyleOptionViewItem &option, const QRect &rect, const QString &text) const const
virtual void	drawFocus (QPainter *painter, const QStyleOptionViewItem &option, const QRect &rect) const const
virtual bool	editorEvent (QEvent *event, QAbstractItemModel *model, const QStyleOptionViewItem &option, const QModelIndex &index) override
virtual bool	eventFilter (QObject *editor, QEvent *event) override
Protected Member Functions inherited from QObject
virtual void	childEvent (QChildEvent *event)
virtual void	connectNotify (const QMetaMethod &signal)
virtual void	customEvent (QEvent *event)
virtual void	disconnectNotify (const QMetaMethod &signal)
bool	isSignalConnected (const QMetaMethod &signal) const const
int	receivers (const char *signal) const const
QObject *	sender () const const
int	senderSignalIndex () const const
virtual void	timerEvent (QTimerEvent *event)

Additional Inherited Members
Static Public Member Functions inherited from QAbstractItemDelegate
QString	elidedText (const QFontMetrics &fontMetrics, int width, Qt::TextElideMode mode, const QString &text)
Static Public Member Functions inherited from QObject
QMetaObject::Connection	connect (const QObject *sender, const char *signal, const QObject *receiver, const char *method, Qt::ConnectionType type)
QMetaObject::Connection	connect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method, Qt::ConnectionType type)
QMetaObject::Connection	connect (const QObject *sender, PointerToMemberFunction signal, const QObject *context, Functor functor, Qt::ConnectionType type)
QMetaObject::Connection	connect (const QObject *sender, PointerToMemberFunction signal, const QObject *receiver, PointerToMemberFunction method, Qt::ConnectionType type)
QMetaObject::Connection	connect (const QObject *sender, PointerToMemberFunction signal, Functor functor)
bool	disconnect (const QMetaObject::Connection &connection)
bool	disconnect (const QObject *sender, const char *signal, const QObject *receiver, const char *method)
bool	disconnect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method)
bool	disconnect (const QObject *sender, PointerToMemberFunction signal, const QObject *receiver, PointerToMemberFunction method)
QString	tr (const char *sourceText, const char *disambiguation, int n)
QString	trUtf8 (const char *sourceText, const char *disambiguation, int n)
Public Attributes inherited from QAbstractItemDelegate
	EditNextItem
	EditPreviousItem
	NoHint
	RevertModelCache
	SubmitModelCache
Public Attributes inherited from QObject
typedef	QObjectList
Properties inherited from QItemDelegate
	clipping
Properties inherited from QObject
	objectName

Detailed Description

Class used to render gantt items in a KDGantt::GraphicsView.

Definition at line 25 of file kdganttitemdelegate.h.

Member Enumeration Documentation

InteractionState

enum KDGantt::ItemDelegate::InteractionState

This enum is used for communication between the view and the delegate about user interaction with gantt items.

See also

KDGantt::ItemDelegate::interactionStateFor

Enumerator
State_None
State_Move
State_ExtendLeft
State_ExtendRight
State_DragConstraint

Definition at line 30 of file kdganttitemdelegate.h.

Constructor & Destructor Documentation

ItemDelegate()

ItemDelegate::ItemDelegate ( QObject *  parent = nullptr )

explicit

Constructor.

Creates an ItemDelegate with parent parent

Definition at line 112 of file kdganttitemdelegate.cpp.

~ItemDelegate()

ItemDelegate::~ItemDelegate ( )

override

Destructor.

Definition at line 119 of file kdganttitemdelegate.cpp.

Member Function Documentation

constraintBoundingRect()

QRectF ItemDelegate::constraintBoundingRect ( const QPointF &  start, const QPointF &  end, const Constraint &  constraint  ) const

virtual

Returns

The bounding rectangle for the graphics used to represent a constraint between points start and end (typically an arrow)

Definition at line 411 of file kdganttitemdelegate.cpp.

References KDGantt::Constraint::FinishFinish, finishFinishArrow(), finishFinishLine(), KDGantt::Constraint::FinishStart, finishStartArrow(), finishStartLine(), PW, QObject::qobject_cast(), KDGantt::Constraint::relationType(), KDGantt::Constraint::StartFinish, startFinishArrow(), startFinishLine(), KDGantt::Constraint::StartStart, startStartArrow(), and startStartLine().

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

defaultBrush()

QBrush ItemDelegate::defaultBrush

(

ItemType

type

)

const

Returns

The default brush for item type type

Definition at line 141 of file kdganttitemdelegate.cpp.

References d.

Referenced by paintGanttItem().

defaultPen()

QPen ItemDelegate::defaultPen

(

ItemType

type

)

const

Returns

The default pen for item type type

Definition at line 161 of file kdganttitemdelegate.cpp.

References d.

Referenced by paintGanttItem().

finishFinishArrow()

QPolygonF ItemDelegate::finishFinishArrow ( const QPointF &  start, const QPointF &  end  ) const

protected

Definition at line 537 of file kdganttitemdelegate.cpp.

References QObject::qobject_cast(), TURN, QPointF::x(), and QPointF::y().

Referenced by constraintBoundingRect(), and paintFinishFinishConstraint().

finishFinishLine()

QPolygonF ItemDelegate::finishFinishLine ( const QPointF &  start, const QPointF &  end  ) const

protected

Definition at line 515 of file kdganttitemdelegate.cpp.

References QObject::qobject_cast(), TURN, QPointF::x(), and QPointF::y().

Referenced by constraintBoundingRect(), and paintFinishFinishConstraint().

finishStartArrow()

QPolygonF ItemDelegate::finishStartArrow ( const QPointF &  start, const QPointF &  end  ) const

protected

Definition at line 491 of file kdganttitemdelegate.cpp.

References QObject::qobject_cast(), TURN, QPointF::x(), and QPointF::y().

Referenced by constraintBoundingRect(), and paintFinishStartConstraint().

finishStartLine()

QPolygonF ItemDelegate::finishStartLine ( const QPointF &  start, const QPointF &  end  ) const

protected

Definition at line 469 of file kdganttitemdelegate.cpp.

References QObject::qobject_cast(), TURN, QPointF::x(), and QPointF::y().

Referenced by constraintBoundingRect(), and paintFinishStartConstraint().

interactionStateFor()

ItemDelegate::InteractionState ItemDelegate::interactionStateFor ( const QPointF &  pos, const StyleOptionGanttItem &  opt, const QModelIndex &  idx  ) const

virtual

Returns

The interaction state for position pos on item idx when rendered with options opt. This is used to tell the view about how the item should react to mouse click/drag.

Override to implement new items or interactions.

Definition at line 235 of file kdganttitemdelegate.cpp.

References QRectF::contains(), QRectF::height(), Qt::ItemIsEditable, KDGantt::ItemTypeRole, QRectF::left(), QObject::qobject_cast(), QRectF::right(), State_ExtendLeft, State_ExtendRight, State_Move, State_None, QRectF::topLeft(), KDGantt::TypeEvent, KDGantt::TypeNone, KDGantt::TypeSummary, QRectF::width(), and QPointF::x().

Referenced by KDGantt::GraphicsItem::hoverMoveEvent(), KDGantt::GraphicsItem::mouseDoubleClickEvent(), and KDGantt::GraphicsItem::mousePressEvent().

itemBoundingSpan()

Span ItemDelegate::itemBoundingSpan ( const StyleOptionGanttItem &  opt, const QModelIndex &  idx  ) const

virtual

Returns

The bounding Span for the item identified by idx when rendered with options opt. This is often the same as the span given by the AbstractGrid for idx, but it might be larger in case there are additional texts or decorations on the item.

Override this to implement new itemtypes or to change the look of the existing ones.

Definition at line 194 of file kdganttitemdelegate.cpp.

References KDGantt::StyleOptionGanttItem::Center, QString::data(), Qt::DisplayRole, QRectF::height(), KDGantt::StyleOptionGanttItem::Hidden, KDGantt::ItemTypeRole, KDGantt::StyleOptionGanttItem::Left, QRectF::left(), QObject::qobject_cast(), KDGantt::StyleOptionGanttItem::Right, QRectF::top(), KDGantt::TypeEvent, and QRectF::width().

Referenced by KDGantt::GraphicsItem::updateItem().

paintConstraintItem()

void ItemDelegate::paintConstraintItem ( QPainter *  painter, const QStyleOptionGraphicsItem &  opt, const QPointF &  start, const QPointF &  end, const Constraint &  constraint  )

virtual

Paints the constraint between points start and end using painter and opt.

Definition at line 436 of file kdganttitemdelegate.cpp.

References KDGantt::Constraint::FinishFinish, KDGantt::Constraint::FinishStart, paintFinishFinishConstraint(), paintFinishStartConstraint(), paintStartFinishConstraint(), paintStartStartConstraint(), QObject::qobject_cast(), KDGantt::Constraint::relationType(), KDGantt::Constraint::StartFinish, and KDGantt::Constraint::StartStart.

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

paintFinishFinishConstraint()

void ItemDelegate::paintFinishFinishConstraint ( QPainter *  p, const QStyleOptionGraphicsItem &  opt, const QPointF &  start, const QPointF &  end, const Constraint &  constraint  )

protected

Definition at line 502 of file kdganttitemdelegate.cpp.

References QPen::color(), d, QPainter::drawPolygon(), QPainter::drawPolyline(), finishFinishArrow(), finishFinishLine(), QObject::qobject_cast(), QPainter::setBrush(), and QPainter::setPen().

Referenced by paintConstraintItem().

paintFinishStartConstraint()

void ItemDelegate::paintFinishStartConstraint ( QPainter *  p, const QStyleOptionGraphicsItem &  opt, const QPointF &  start, const QPointF &  end, const Constraint &  constraint  )

protected

Definition at line 456 of file kdganttitemdelegate.cpp.

References QPen::color(), d, QPainter::drawPolygon(), QPainter::drawPolyline(), finishStartArrow(), finishStartLine(), QObject::qobject_cast(), QPainter::setBrush(), and QPainter::setPen().

Referenced by paintConstraintItem().

paintGanttItem()

void ItemDelegate::paintGanttItem ( QPainter *  p, const StyleOptionGanttItem &  opt, const QModelIndex &  idx  )

virtual

Paints the gantt item idx using painter and opt.

Definition at line 274 of file kdganttitemdelegate.cpp.

References QRectF::adjusted(), Qt::AlignCenter, Qt::AlignLeft, Qt::Alignment, Qt::AlignRight, Qt::AlignVCenter, Qt::black, KDGantt::StyleOptionGanttItem::Center, QPainterPath::closeSubpath(), QPen::color(), defaultBrush(), defaultPen(), QPainter::drawPath(), QPainter::drawRect(), QPainter::drawText(), QPainter::fillRect(), QRectF::height(), KDGantt::StyleOptionGanttItem::Hidden, QRectF::isValid(), KDGantt::ItemTypeRole, KDGantt::StyleOptionGanttItem::Left, QRectF::left(), QPainterPath::lineTo(), QPainterPath::moveTo(), Qt::NoBrush, QPainter::pen(), QObject::qobject_cast(), QPainterPath::quadTo(), Qt::red, QPainter::restore(), KDGantt::StyleOptionGanttItem::Right, QRectF::right(), QPainter::save(), QPainter::setBrush(), QPainter::setBrushOrigin(), QRectF::setHeight(), QPainter::setPen(), QPen::setWidth(), QRectF::setY(), QStyle::State_Selected, KDGantt::TaskCompletionRole, QRectF::top(), QRectF::topLeft(), QRectF::topRight(), QPainter::translate(), QRectF::translate(), QRectF::translated(), KDGantt::TypeEvent, KDGantt::TypeSummary, KDGantt::TypeTask, QRectF::width(), QPen::width(), QRectF::x(), and QRectF::y().

Referenced by KDGantt::GraphicsItem::paint().

paintStartFinishConstraint()

void ItemDelegate::paintStartFinishConstraint ( QPainter *  p, const QStyleOptionGraphicsItem &  opt, const QPointF &  start, const QPointF &  end, const Constraint &  constraint  )

protected

Definition at line 593 of file kdganttitemdelegate.cpp.

References QPen::color(), d, QPainter::drawPolygon(), QPainter::drawPolyline(), QObject::qobject_cast(), QPainter::setBrush(), QPainter::setPen(), startFinishArrow(), and startFinishLine().

Referenced by paintConstraintItem().

paintStartStartConstraint()

void ItemDelegate::paintStartStartConstraint ( QPainter *  p, const QStyleOptionGraphicsItem &  opt, const QPointF &  start, const QPointF &  end, const Constraint &  constraint  )

protected

Definition at line 548 of file kdganttitemdelegate.cpp.

References QPen::color(), d, QPainter::drawPolygon(), QPainter::drawPolyline(), QObject::qobject_cast(), QPainter::setBrush(), QPainter::setPen(), startStartArrow(), and startStartLine().

Referenced by paintConstraintItem().

setDefaultBrush()

void ItemDelegate::setDefaultBrush	(	ItemType	type,
		const QBrush &	brush
	)

Sets the default brush used for items of type type to brush.

The default brush is used in the case when the model does not provide an explicit brush.

Definition at line 132 of file kdganttitemdelegate.cpp.

References d.

setDefaultPen()

void ItemDelegate::setDefaultPen	(	ItemType	type,
		const QPen &	pen
	)

Sets the default pen used for items of type type to pen.

The default pen is used in the case when the model does not provide an explicit pen.

Definition at line 152 of file kdganttitemdelegate.cpp.

References d.

startFinishArrow()

QPolygonF ItemDelegate::startFinishArrow ( const QPointF &  start, const QPointF &  end  ) const

protected

Definition at line 630 of file kdganttitemdelegate.cpp.

References QObject::qobject_cast(), TURN, QPointF::x(), and QPointF::y().

Referenced by constraintBoundingRect(), and paintStartFinishConstraint().

startFinishLine()

QPolygonF ItemDelegate::startFinishLine ( const QPointF &  start, const QPointF &  end  ) const

protected

Definition at line 606 of file kdganttitemdelegate.cpp.

References QObject::qobject_cast(), TURN, QPointF::x(), and QPointF::y().

Referenced by constraintBoundingRect(), and paintStartFinishConstraint().

startStartArrow()

QPolygonF ItemDelegate::startStartArrow ( const QPointF &  start, const QPointF &  end  ) const

protected

Definition at line 582 of file kdganttitemdelegate.cpp.

References QObject::qobject_cast(), TURN, QPointF::x(), and QPointF::y().

Referenced by constraintBoundingRect(), and paintStartStartConstraint().

startStartLine()

QPolygonF ItemDelegate::startStartLine ( const QPointF &  start, const QPointF &  end  ) const

protected

Definition at line 561 of file kdganttitemdelegate.cpp.

References QObject::qobject_cast(), TURN, QPointF::x(), and QPointF::y().

Referenced by constraintBoundingRect(), and paintStartStartConstraint().

toolTip()

QString ItemDelegate::toolTip ( const QModelIndex &  idx ) const

virtual

Returns

The tooltip for index idx

Definition at line 168 of file kdganttitemdelegate.cpp.

References QString::arg(), QAbstractItemModel::data(), Qt::DisplayRole, KDGantt::EndTimeRole, QString::isNull(), QObject::qobject_cast(), KDGantt::StartTimeRole, Qt::ToolTipRole, QVariant::toString(), and QObject::tr().

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

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

• kdganttitemdelegate.h
• kdganttitemdelegate.cpp