IlvGanttSelectInteractor Class Reference

Interactor to select and manipulate gantt nodes. More...

#include <ilviews/gantt/ganttint.h>

Inheritance diagram for IlvGanttSelectInteractor:

Public Member Functions
	IlvGanttSelectInteractor (IlvGanttChart *gantt, IlvView *view)
	Constructor. More...
virtual void	doReshape (IlvGraphic *graphic, const IlvRect &rect)
	Changes the schedule of Gantt subnodes. More...
virtual void	doTranslate (const IlvPoint &p)
	Moves Gantt subnodes. More...
virtual void	drawGhostMove (IlvGraphic *graphic, IlvRegion *clip=0)
	Draws the image of the moved subnode. More...
virtual void	drawGhostReshape (IlvGraphic *graphic, IlvRegion *clip=0)
	Draws the image of the reshaped subnode. More...
virtual void	ensureVisible (const IlvPoint &p)
	Translates the working view according to the mouse position. More...
IlvGanttChart *	getGanttChart () const
	Returns the Gantt chart with which this interactor is associated. More...
virtual void	handleEvent (IlvEvent &event)
	Handles all incoming events. More...
virtual void	moveNode (IlvGanttNode *node, IlInt *startMinArray, IlInt *startMaxArray, IlInt *endMinArray, IlInt *endMaxArray, IlvGanttLine **lines)
	Moves all subnodes of a Gantt node. More...
virtual void	moveSubNode (IlvGanttNode *node, IlUShort idx, IlInt startMin, IlInt startMax, IlInt endMin, IlInt endMax, IlvGanttLine *line)
	Moves a subnode of a Gantt node. More...
virtual void	reshapeNode (IlvGanttNode *node, IlInt *startMinArray, IlInt *startMaxArray, IlInt *endMinArray, IlInt *endMaxArray)
	Changes the schedule of all subnodes of a Gantt node. More...
virtual void	reshapeSubNode (IlvGanttNode *node, IlUShort idx, IlInt startMin, IlInt startMax, IlInt endMin, IlInt endMax)
	Changes the schedule of a subnode. More...

Detailed Description

Interactor to select and manipulate gantt nodes.

Library: ilvgantt

The IlvGanttSelectInteractor instances handle all selection, translation, and object-resizing tasks.

See Also

IlvGanttChart, IlvGanttSubNode, IlvGanttNode.

Constructor & Destructor Documentation

IlvGanttSelectInteractor::IlvGanttSelectInteractor	(	IlvGanttChart *	gantt,
		IlvView *	view
	)

Constructor.

The constructor initializes a new instance of the IlvGanttSelectInteractor class that will let the user select Gantt subnodes, Gantt nodes, or groups of Gantt subnodes in the view view connected to the grapher of the Gantt chart gantt.

Parameters

gantt	The gantt to which the interactor is attached.
view	The view to which the interactor is attached. This view must be one of the Gantt grapher view where activities (nodes) are displayed.

Member Function Documentation

virtual void IlvGanttSelectInteractor::doReshape ( IlvGraphic *  graphic, const IlvRect &  rect  )

virtual

Changes the schedule of Gantt subnodes.

Computes the new start and end times of the Gantt subnode represented by the graphic object graphic. Once these values are computed, two cases are considered:

• If the Ctrl key is pressed, the IlvGanttSelectInteractor::reshapeNode method is called on the Gantt chart node containing the considered subnode.
• Otherwise, the IlvGanttSelectInteractor::reshapeSubNode is called.

Parameters

graphic	The considered graphic object.
rect	The new bounding box for the graphic object.

Reimplemented from IlvSelectInteractor.

virtual void IlvGanttSelectInteractor::doTranslate ( const IlvPoint &  p )

virtual

Moves Gantt subnodes.

Computes the new start and end times of the current selected Gantt chart subnodes and determines the new lines they are attached to. Once these values are computed, two cases are considered:

• If the Ctrl key is pressed, the IlvGanttSelectInteractor::moveNode method is called on the Gantt chart node containing the subnode being pointed to.
• Otherwise, the IlvGanttSelectInteractor::moveSubNode is called for each selected Gantt chart subnode.

Parameters

p	The new position of the bounding box of the objects.

Reimplemented from IlvSelectInteractor.

virtual void IlvGanttSelectInteractor::drawGhostMove ( IlvGraphic *  graphic, IlvRegion *  clip = 0  )

virtual

Draws the image of the moved subnode.

Snaps the position of graphic with respect to the Gantt lines.

Parameters

graphic	The graphic object representing the Gantt subnode.
clip	The clip used for the drawing.

Reimplemented from IlvSelectInteractor.

virtual void IlvGanttSelectInteractor::drawGhostReshape ( IlvGraphic *  graphic, IlvRegion *  clip = 0  )

virtual

Draws the image of the reshaped subnode.

Prevents the user from modifying the height of graphic.

Parameters

graphic	The graphic object representing the Gantt subnode.
clip	The clip used for the drawing.

Reimplemented from IlvSelectInteractor.

virtual void IlvGanttSelectInteractor::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.

IlvGanttChart* IlvGanttSelectInteractor::getGanttChart

(

)

const

Returns the Gantt chart with which this interactor is associated.

Returns

The Gantt chart with which this interactor is associated.

virtual void IlvGanttSelectInteractor::handleEvent ( IlvEvent &  event )

virtual

Handles all incoming events.

Lets the user select, translate, and reshape Gantt chart subnodes as well as a Gantt chart node. Gantt nodes can be selected using the mouse button with the Ctrl key pressed.

Parameters

event

The received event.

Reimplemented from IlvSelectInteractor.

virtual void IlvGanttSelectInteractor::moveNode ( IlvGanttNode *  node, IlInt *  startMinArray, IlInt *  startMaxArray, IlInt *  endMinArray, IlInt *  endMaxArray, IlvGanttLine **  lines  )

virtual

Moves all subnodes of a Gantt node.

Is designed to be overloaded when linking the Gantt chart with a scheduling program. The default implementation modifies the start and end times of each Gantt subnode of node to the corresponding values in the given arrays, and associates the subnode to the corresponding Gantt line in lines.

Parameters

node	The considered Gantt node.
startMinArray	The new earliest start times for the subnodes of node.
startMaxArray	The new latest start times for the subnodes of node.
endMinArray	The new earliest end times for the subnodes of node.
endMaxArray	The new latest end times for the subnodes of node.
lines	The new Gantt lines for the subnodes of node.

virtual void IlvGanttSelectInteractor::moveSubNode ( IlvGanttNode *  node, IlUShort  idx, IlInt  startMin, IlInt  startMax, IlInt  endMin, IlInt  endMax, IlvGanttLine *  line  )

virtual

Moves a subnode of a Gantt node.

Is designed to be overloaded when linking the Gantt chart with a scheduling program. The default implementation modifies the start and end times of the subnode of index idx in the node node, as well as its associated Gantt line.

Parameters

node	The considered Gantt node.
idx	The index of the considered subnode in node.
startMin	The new earliest start time for the subnode.
startMax	The new latest start time for the subnode
endMin	The new earliest end time for the subnode.
endMax	The new latest end time for the subnode.
line	The new Gantt line for the subnode.

virtual void IlvGanttSelectInteractor::reshapeNode ( IlvGanttNode *  node, IlInt *  startMinArray, IlInt *  startMaxArray, IlInt *  endMinArray, IlInt *  endMaxArray  )

virtual

Changes the schedule of all subnodes of a Gantt node.

Is designed to be overloaded when linking the Gantt chart with a scheduling program. The default implementation modifies the start and end times of each Gantt subnode of node to the corresponding values in the given arrays.

Parameters

node	The considered Gantt node.
startMinArray	The new earliest start times for the subnodes of node.
startMaxArray	The new latest start times for the subnodes of node.
endMinArray	The new earliest end times for the subnodes of node.
endMaxArray	The new latest end times for the subnodes of node.

virtual void IlvGanttSelectInteractor::reshapeSubNode ( IlvGanttNode *  node, IlUShort  idx, IlInt  startMin, IlInt  startMax, IlInt  endMin, IlInt  endMax  )

virtual

Changes the schedule of a subnode.

Is designed to be overloaded when linking the Gantt chart with a scheduling program. The default implementation modifies the start and end times of the subnode of index idx in the node node.

Parameters

node	The considered Gantt node.
idx	The index of the considered subnode in node.
startMin	The new earliest start time for the subnode.
startMax	The new latest start time for the subnode
endMin	The new earliest end time for the subnode.
endMax	The new latest end time for the subnode.