IlvGanttGridViewHook Class Reference

Gantt chart grid hook class. More...

#include <ilviews/gantt/gantt.h>

Inheritance diagram for IlvGanttGridViewHook:

List of all members.

Public Member Functions
	IlvGanttGridViewHook (IlvGanttChart *gantt, IlvManager *mgr, IlvView *view)
	Constructor.
virtual void	beforeDraw (IlvPort *dst, const IlvTransformer *=0, const IlvRegion *r=0, const IlvRegion *clip=0)
	Called internally by the manager before it redraws the hook view.
virtual void	contentsChanged ()
	Called when the contents of the manager are changed.
virtual void	drawGrid (IlvPort *dst, const IlvRegion *clip=0)
	Calls the Gantt member function drawGrid and then sets the skip-compute flag to IlTrue.
void	skipCompute (IlBoolean flag)
	Sets the skip-compute flag.
virtual void	transformerChanged (const IlvTransformer *current, const IlvTransformer *previous)
	Called when you change the transformer of the view to which this hook is connected.

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Detailed Description

Gantt chart grid hook class.

Library: ilvgantt

An IlvGanttGridViewHook object is connected to each of the four views managed by the Gantt grapher. This hook is used to draw a grid in the grapher views.

See also:

IlvGanttChart, IlvManagerViewHook.

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Constructor & Destructor Documentation

IlvGanttGridViewHook::IlvGanttGridViewHook	(	IlvGanttChart *	gantt,
		IlvManager *	mgr,
		IlvView *	view
	)

Constructor.

The constructor initializes an IlvGanttGridViewHook object with the parameters you provide.

Parameters:

	gantt	The Gantt chart.
	mgr	The manager.
	view	The view.

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Member Function Documentation

virtual void IlvGanttGridViewHook::beforeDraw	(	IlvPort *	dst,
		const IlvTransformer *	= 0,
		const IlvRegion *	r = 0,
		const IlvRegion *	clip = 0
	)			[virtual]

Called internally by the manager before it redraws the hook view.

The default implementation calls the member function drawGrid.

Parameters:

	dst	The port to draw to.
	t	The transformer applied to the view where the event occurred.
	r	The areas that are to be refreshed, in the view coordinate system.
	clip	The clipping region.

Reimplemented from IlvManagerViewHook.

virtual void IlvGanttGridViewHook::contentsChanged

(

)

[virtual]

Called when the contents of the manager are changed.

The default implementation sets the skip-compute flag to IlFalse.

Reimplemented from IlvManagerViewHook.

virtual void IlvGanttGridViewHook::drawGrid	(	IlvPort *	dst,
		const IlvRegion *	clip = 0
	)			[virtual]

Calls the Gantt member function drawGrid and then sets the skip-compute flag to IlTrue.

Parameters:

	dst	The port to draw to.
	clip	The clipping region.

void IlvGanttGridViewHook::skipCompute

(

IlBoolean

flag

)

Sets the skip-compute flag.

Parameters:

flag

If IlTrue, the Gantt chart does not recompute the grid points before drawing the grid.

virtual void IlvGanttGridViewHook::transformerChanged	(	const IlvTransformer *	current,
		const IlvTransformer *	previous
	)			[virtual]

Called when you change the transformer of the view to which this hook is connected.

The default implementation sets the skip-compute flag to IlFalse.

Parameters:

	current	The current transformer.
	previous	The previous transformer.

Reimplemented from IlvManagerViewHook.