IlvGanttAddNodeInteractor Class Reference

Interactor to add nodes to a Gantt chart. More...

#include <ilviews/gantt/ganttint.h>

Inheritance diagram for IlvGanttAddNodeInteractor:

List of all members.

Public Member Functions
	IlvGanttAddNodeInteractor (IlvGanttChart *gantt, IlvView *view, IlUShort button=IlvLeftButton, IlBoolean asBreak=IlFalse)
	Constructor.
virtual void	doIt (IlvRect &rect)
	Creates and adds the Gantt node.
virtual void	ensureVisible (const IlvPoint &p)
	Translates the working view according to the mouse position.
IlvGanttChart *	getGanttChart () const
	Returns the Gantt chart with which this interactor is associated.
IlBoolean	isBreak () const
	Indicates whether break nodes are created.
virtual IlvGanttNode *	makeNode (IlInt startMin, IlInt startMax, IlInt endMin, IlInt endMax, IlvGanttLine *line)
	Factory method to create Gantt nodes.
void	setAsBreak (IlBoolean asBreak=IlTrue)
	Indicates whether break nodes are created.

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Detailed Description

Interactor to add nodes to a Gantt chart.

Library: ilvgantt

This interactor class lets you interactively add a Gantt node to the Gantt chart. IlvGanttAddNodeInteractor can also be used to add a break node to the Gantt chart. Such an Interactor is called an add break interactor. There are two different ways to obtain an add break interactor.

• You can create an IlvGanttAddNodeInteractor by setting the parameter asBreak to IlTrue in its constructor.
• If you already have an IlvGanttAddNodeInteractor, you can transform it to an add break interactor by calling the IlvGanttAddNodeInteractor::setAsBreak method.

See also:

IlvGanttChart, IlvGanttSubNode, IlvGanttNode

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Constructor & Destructor Documentation

IlvGanttAddNodeInteractor::IlvGanttAddNodeInteractor	(	IlvGanttChart *	gantt,
		IlvView *	view,
		IlUShort	button = IlvLeftButton,
		IlBoolean	asBreak = IlFalse
	)

Constructor.

The constructor initializes a new instance of the IlvGanttAddNodeInteractor class that adds nodes to the Gantt chart gantt in the grapher view view. Set button to the mouse button to be used for adding the node. If asBreak is set to IlTrue, the constructor creates an add break interactor.

Parameters:

	gantt	The gantt to which the interactor is attached.
	view	The gantt chart view to which the interactor is attached. This view must be one of the Gantt grapher view where activities (nodes) are displayed.
	button	The mouse button that is used for the interaction.
	asBreak	A Boolean value indicating whether break nodes are created.

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Member Function Documentation

virtual void IlvGanttAddNodeInteractor::doIt

(

IlvRect &

rect

)

[virtual]

Creates and adds the Gantt node.

Computes the start and end times of the Gantt node from the rectangle rect that the user is dragging. It also determines the Gantt line this node is associated with. Once these values have been computed, the IlvGanttAddNodeInteractor::makeNode method is called and the created node is added to the Gantt chart.

Parameters:

rect

The rectangle drawn by the user, in view coordinates.

Reimplemented from IlvDragRectangleInteractor.

virtual void IlvGanttAddNodeInteractor::ensureVisible

(

const IlvPoint &

p

)

[virtual]

Translates the working view according to the mouse position.

Performs a logical view translation when the user drags the mouse outside the view.

Parameters:

p

The location of the mouse, in view coordinates.

Reimplemented from IlvManagerViewInteractor.

IlvGanttChart* IlvGanttAddNodeInteractor::getGanttChart

(

)

const

Returns the Gantt chart with which this interactor is associated.

Returns:

The Gantt chart with which this interactor is associated.

IlBoolean IlvGanttAddNodeInteractor::isBreak

(

)

const

Indicates whether break nodes are created.

Returns:

IlTrue if the interactor is an add break interactor, and IlFalse otherwise.

virtual IlvGanttNode* IlvGanttAddNodeInteractor::makeNode	(	IlInt	startMin,
		IlInt	startMax,
		IlInt	endMin,
		IlInt	endMax,
		IlvGanttLine *	line
	)			[virtual]

Factory method to create Gantt nodes.

The default implementation returns a Gantt node that contains one Gantt subnode initialized with the given parameters. You can overload this method to create custom nodes.

Parameters:

	startMin	The earliest start time of the node.
	startMax	The latest start time of the node.
	endMin	The earliest end time of the node.
	endMax	The latest end time of the node.
	line	The Gantt line with which the node must be associated.

Returns:

The created Gantt node.

void IlvGanttAddNodeInteractor::setAsBreak

(

IlBoolean

asBreak = IlTrue

)

Indicates whether break nodes are created.

If asBreak is set to IlTrue, you transform the interactor to an add break interactor.

Parameters:

asBreak

A Boolean value indicating whether break nodes are created by the interactor.

See also:

isBreak.