KDGantt::GraphicsView Class Reference

#include <KDGanttGraphicsView>

Inheritance diagram for KDGantt::GraphicsView:

Classes
class	Private

Public Slots
void	setConstraintModel (ConstraintModel *)
void	setGrid (AbstractGrid *)
void	setItemDelegate (ItemDelegate *delegate)
void	setModel (QAbstractItemModel *)
void	setReadOnly (bool)
void	setRootIndex (const QModelIndex &)
void	setRowController (AbstractRowController *)
void	setSelectionModel (QItemSelectionModel *)
void	setSummaryHandlingModel (QAbstractProxyModel *model)
void	updateSceneRect ()

Signals
void	activated (const QModelIndex &index)
void	clicked (const QModelIndex &index)
void	doubleClicked (const QModelIndex &index)
void	entered (const QModelIndex &index)
void	headerContextMenuRequested (const QPoint &pt)
void	pressed (const QModelIndex &index)

Public Member Functions
	GraphicsView (QWidget *parent=0)
virtual	~GraphicsView ()
virtual void	addConstraint (const QModelIndex &from, const QModelIndex &to, Qt::KeyboardModifiers modifiers)
void	clearItems ()
ConstraintModel *	constraintModel () const
void	deleteSubtree (const QModelIndex &)
AbstractGrid *	grid () const
Qt::ContextMenuPolicy	headerContextMenuPolicy () const
QModelIndex	indexAt (const QPoint &pos) const
bool	isReadOnly () const
ItemDelegate *	itemDelegate () const
QAbstractItemModel *	model () const
void	print (QPrinter *printer, bool drawRowLabels=true)
void	print (QPrinter *printer, qreal start, qreal end, bool drawRowLabels=true)
void	print (QPainter *painter, const QRectF &target=QRectF(), bool drawRowLabels=true)
void	print (QPainter *painter, qreal start, qreal end, const QRectF &target=QRectF(), bool drawRowLabels=true)
QModelIndex	rootIndex () const
AbstractRowController *	rowController () const
QItemSelectionModel *	selectionModel () const
void	setHeaderContextMenuPolicy (Qt::ContextMenuPolicy)
QAbstractProxyModel *	summaryHandlingModel () const
void	updateRow (const QModelIndex &)
void	updateScene ()

Protected Member Functions
void	resizeEvent (QResizeEvent *)

Properties
bool	readOnly

Detailed Description

The GraphicsView class provides a model/view implementation of a gantt chart.

Definition at line 44 of file kdganttgraphicsview.h.

Constructor & Destructor Documentation

GraphicsView::GraphicsView ( QWidget *  parent = 0 )

explicit

void GraphicsView::activated( const QModelIndex & index )

void GraphicsView::clicked( const QModelIndex & index );

void GraphicsView::doubleClicked( const QModelIndex & index );

void GraphicsView::entered( const QModelIndex & index );

void GraphicsView::pressed( const QModelIndex & index );

void GraphicsView::headerContextMenuRequested( const QPoint& pt ) This signal is emitted when the header has contextMenuPolicy Qt::CustomContextMenu and the widget wants to show a contextmenu for the header. Unlike in QWidget::customContextMenuRequested() signal, pt is here in global coordinates.

Constructor. Creates a new KDGantt::GraphicsView with parent parent.

Definition at line 304 of file kdganttgraphicsview.cpp.

GraphicsView::~GraphicsView ( )

virtual

Destroys this view.

Definition at line 336 of file kdganttgraphicsview.cpp.

Member Function Documentation

void KDGantt::GraphicsView::activated ( const QModelIndex &  index )

signal

void GraphicsView::addConstraint ( const QModelIndex &  from, const QModelIndex &  to, Qt::KeyboardModifiers  modifiers  )

virtual

Adds a constraint from from to to. modifiers are the keyboard modifiers pressed by the user when the action is invoked.

Override this to control how contraints are added. The default implementation adds a soft constraint unless the Shift key is pressed, in that case it adds a hard constraint. If a constraint is already present, it is removed and nothing is added.

Definition at line 552 of file kdganttgraphicsview.cpp.

void GraphicsView::clearItems

(

)

Definition at line 607 of file kdganttgraphicsview.cpp.

void KDGantt::GraphicsView::clicked ( const QModelIndex &  index )

signal

ConstraintModel * GraphicsView::constraintModel

(

)

const

Returns

the KDGantt::ConstraintModel displayed by this view.

Definition at line 413 of file kdganttgraphicsview.cpp.

void GraphicsView::deleteSubtree

(

const QModelIndex &

idx

)

Definition at line 673 of file kdganttgraphicsview.cpp.

void KDGantt::GraphicsView::doubleClicked ( const QModelIndex &  index )

signal

void KDGantt::GraphicsView::entered ( const QModelIndex &  index )

signal

AbstractGrid * GraphicsView::grid

(

)

const

Returns

the AbstractGrid used by this view.

Definition at line 503 of file kdganttgraphicsview.cpp.

Qt::ContextMenuPolicy GraphicsView::headerContextMenuPolicy

(

)

const

Returns

the context menu policy for the header

Definition at line 539 of file kdganttgraphicsview.cpp.

void KDGantt::GraphicsView::headerContextMenuRequested ( const QPoint &  pt )

signal

QModelIndex GraphicsView::indexAt

(

const QPoint &

pos

)

const

Returns

The QModelIndex for the item located at position pos in the view or an invalid index if no item was present at that position.

This is useful for for example contextmenus.

Definition at line 596 of file kdganttgraphicsview.cpp.

bool GraphicsView::isReadOnly

(

)

const

Returns

true iff the view is in read-only mode

Definition at line 518 of file kdganttgraphicsview.cpp.

ItemDelegate * GraphicsView::itemDelegate

(

)

const

Returns

the ItemDelegate used by this view to render items

Definition at line 465 of file kdganttgraphicsview.cpp.

QAbstractItemModel * GraphicsView::model

(

)

const

Returns

the current model displayed by this view

Definition at line 370 of file kdganttgraphicsview.cpp.

void KDGantt::GraphicsView::pressed ( const QModelIndex &  index )

signal

void GraphicsView::print	(	QPrinter *	printer,
		bool	drawRowLabels = true
	)

Print the Gantt chart using printer. If drawRowLabels is true (the default), each row will have it's label printed on the left side.

This version of print() will print multiple pages.

Definition at line 684 of file kdganttgraphicsview.cpp.

void GraphicsView::print	(	QPrinter *	printer,
		qreal	start,
		qreal	end,
		bool	drawRowLabels = true
	)

Print part of the Gantt chart from start to end using printer. If drawRowLabels is true (the default), each row will have it's label printed on the left side.

This version of print() will print multiple pages.

To print a certain range of a chart with a DateTimeGrid, use qreal DateTimeGrid::mapFromDateTime( const QDateTime& dt) const to figure out the values for start and end.

Definition at line 699 of file kdganttgraphicsview.cpp.

void GraphicsView::print	(	QPainter *	painter,
		const QRectF &	targetRect = QRectF(),
		bool	drawRowLabels = true
	)

Render the GanttView inside the rectangle target using the painter painter. If drawRowLabels is true (the default), each row will have it's label printed on the left side.

Definition at line 708 of file kdganttgraphicsview.cpp.

void GraphicsView::print	(	QPainter *	painter,
		qreal	start,
		qreal	end,
		const QRectF &	targetRect = QRectF(),
		bool	drawRowLabels = true
	)

Render the GanttView inside the rectangle target using the painter painter. If drawRowLabels is true (the default), each row will have it's label printed on the left side.

To print a certain range of a chart with a DateTimeGrid, use qreal DateTimeGrid::mapFromDateTime( const QDateTime& dt) const to figure out the values for start and end.

Definition at line 721 of file kdganttgraphicsview.cpp.

void GraphicsView::resizeEvent ( QResizeEvent *  ev )

protected

Definition at line 564 of file kdganttgraphicsview.cpp.

QModelIndex GraphicsView::rootIndex

(

)

const

Returns

the rootindex for this view.

Definition at line 435 of file kdganttgraphicsview.cpp.

AbstractRowController * GraphicsView::rowController

(

)

const

Returns

the AbstractRowController for this view.

See also

setRowController

Definition at line 485 of file kdganttgraphicsview.cpp.

QItemSelectionModel * GraphicsView::selectionModel

(

)

const

Returns

the QItemSelectionModel used by this view

Definition at line 450 of file kdganttgraphicsview.cpp.

void GraphicsView::setConstraintModel ( ConstraintModel *  cmodel )

slot

Sets the constraintmodel displayed by this view.

See also

KDGantt::ConstraintModel.

Definition at line 406 of file kdganttgraphicsview.cpp.

void GraphicsView::setGrid ( AbstractGrid *  grid )

slot

Sets the AbstractGrid for this view. The grid is an object that controls how QModelIndexes are mapped to and from the view and how the background and header is rendered.

See also

AbstractGrid and DateTimeGrid.

Definition at line 495 of file kdganttgraphicsview.cpp.

void GraphicsView::setHeaderContextMenuPolicy

(

Qt::ContextMenuPolicy

p

)

Sets the context menu policy for the header. The default value Qt::DefaultContextMenu results in a standard context menu on the header that allows the user to set the scale and zoom.

Setting this to Qt::CustomContextMenu will cause the signal headerContextMenuRequested(const QPoint& pt) to be emitted instead.

See also

QWidget::setContextMenuPolicy( Qt::ContextMenuPolicy )

Definition at line 532 of file kdganttgraphicsview.cpp.

void GraphicsView::setItemDelegate ( ItemDelegate *  delegate )

slot

Sets the KDGantt::ItemDelegate used for rendering items on this view.

See also

ItemDelegate and QAbstractItemDelegate.

Definition at line 458 of file kdganttgraphicsview.cpp.

void GraphicsView::setModel ( QAbstractItemModel *  model )

slot

Sets the model to be displayed in this view to model. The view does not take ownership of the model.

To make a model work well with GraphicsView it must have a certain layout. Whether the model is flat or has a treestrucure is not important, as long as an AbstractRowController is provided that can navigate the model.

GraphicsView operates per row in the model. The data is always taken from the last item in the row. The ItemRoles used are Qt::DisplayRole and the roles defined in KDGantt::ItemDataRole.

Definition at line 356 of file kdganttgraphicsview.cpp.

void GraphicsView::setReadOnly ( bool  ro )

slot

Sets the view to read-only mode if to is true. The default is read/write if the model permits it.

Definition at line 511 of file kdganttgraphicsview.cpp.

void GraphicsView::setRootIndex ( const QModelIndex &  idx )

slot

Sets the root index of the model displayed by this view. Similar to QAbstractItemView::setRootIndex, default is QModelIndex().

Definition at line 428 of file kdganttgraphicsview.cpp.

void GraphicsView::setRowController ( AbstractRowController *  rowcontroller )

slot

Sets the AbstractRowController used by this view. The AbstractRowController deals with the height and position of each row and with which parts of the model are displayed.

See also

AbstractRowController

Definition at line 475 of file kdganttgraphicsview.cpp.

void GraphicsView::setSelectionModel ( QItemSelectionModel *  model )

slot

Sets the QItemSelectionModel used by this view to manage selections. Similar to QAbstractItemView::setSelectionModel

Definition at line 443 of file kdganttgraphicsview.cpp.

void GraphicsView::setSummaryHandlingModel ( QAbstractProxyModel *  model )

slot

Definition at line 375 of file kdganttgraphicsview.cpp.

QAbstractProxyModel * GraphicsView::summaryHandlingModel

(

)

const

Returns

the KDGantt::SummaryHandlingProxyModel used by this view.

Definition at line 420 of file kdganttgraphicsview.cpp.

void GraphicsView::updateRow

(

const QModelIndex &

idx

)

Definition at line 613 of file kdganttgraphicsview.cpp.

void GraphicsView::updateScene

(

)

Resets the state of the view.

Definition at line 651 of file kdganttgraphicsview.cpp.

void GraphicsView::updateSceneRect ( )

slot

Adjusts the bounding rectangle of the scene.

Definition at line 621 of file kdganttgraphicsview.cpp.

Property Documentation

bool KDGantt::GraphicsView::readOnly

readwrite

Definition at line 48 of file kdganttgraphicsview.h.

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

• kdganttgraphicsview.h
• kdganttgraphicsview.cpp