IlvGanttHorizontalGridImpl Class Reference

Gantt chart horizontal grid implementation class. More...

#include <ilviews/gantt/ganttgrd.h>

Inheritance diagram for IlvGanttHorizontalGridImpl:

List of all members.

Public Member Functions
	IlvGanttHorizontalGridImpl ()
	Users should user directly this constructor to create new instances.
virtual void	drawGrid (IlvPort *port, const IlvTransformer *t=0, const IlvRegion *clip=0) const
	Draws the horizontal grid for the Gantt chart.
virtual void	drawLine (IlvPort *port, const IlvPalette *palette, const IlvTransformer *t, IlvPoint &from, IlvPoint &to) const
	Draws a grid line.
virtual void	fillGrid (IlvPort *port, const IlvTransformer *t=0, const IlvRegion *clip=0) const
	Fills the horizontal grid for the Gantt chart.
virtual IlvPalette *	getBackgroundPalette () const =0
	Returns the palette used to fill the grid.
virtual IlvPalette *	getForegroundPalette () const =0
	Returns the palette used to draw the grid lines.
virtual IlvGanttChart *	getGanttChart () const =0
	Returns the Gantt chart for which the grid is drawn.
virtual void	getGridArea (IlvRect &area) const =0
	Returns the bounds of the grid.

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Detailed Description

Gantt chart horizontal grid implementation class.

Library: ilvgantt

This class implements some basic functions for drawing horizontal grids for an IlvGanttChart or IlvGanttChartForm. It is not designed to be independently instanced. Subclasses of this can use the implemented functions or override them if they do not meet the needs.

See also:

IlvGanttChart, IlvGanttHorizontalGrid.

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Member Function Documentation

virtual void IlvGanttHorizontalGridImpl::drawGrid	(	IlvPort *	port,
		const IlvTransformer *	t = 0,
		const IlvRegion *	clip = 0
	)			const [virtual]

Draws the horizontal grid for the Gantt chart.

This function calls drawLine() to draw the grid. Note that this function does not push the clip.

Parameters:

	port	The destination to draw the grid.
	t	The transformer used to draw the grid.
	clip	The clip region.

Reimplemented in IlvGanttResourceGrid, and IlvGanttRowGrid.

virtual void IlvGanttHorizontalGridImpl::drawLine	(	IlvPort *	port,
		const IlvPalette *	palette,
		const IlvTransformer *	t,
		IlvPoint &	from,
		IlvPoint &	to
	)			const [virtual]

Draws a grid line.

This function is called by the drawGrid() method to draw the grid lines. Subclasses can override this function to draw customized lines.

Parameters:

	port	The destination to draw the grid.
	palette	The palette used to draw the line.
	t	The transformer used to draw the grid.
	from	The start point of the line to draw.
	to	The end point of the line to draw.

Reimplemented in IlvGanttLineReliefGrid.

virtual void IlvGanttHorizontalGridImpl::fillGrid	(	IlvPort *	port,
		const IlvTransformer *	t = 0,
		const IlvRegion *	clip = 0
	)			const [virtual]

Fills the horizontal grid for the Gantt chart.

This function fills the background of the grid. Note that this function does not push the clip.

Parameters:

	port	The destination to draw the grid.
	t	The transformer used to draw the grid.
	clip	The clip region.

Reimplemented in IlvGanttLineReliefGrid.

virtual IlvPalette* IlvGanttHorizontalGridImpl::getBackgroundPalette

(

)

const [pure virtual]

Returns the palette used to fill the grid.

Subclasses should implement this function.

Returns:

The palette used to fill the grid.

Implemented in IlvGanttHorizontalGrid, and IlvGanttCalendarGrid.

virtual IlvPalette* IlvGanttHorizontalGridImpl::getForegroundPalette

(

)

const [pure virtual]

Returns the palette used to draw the grid lines.

Subclasses should implement this function.

Returns:

The palette used to draw the grid lines.

Implemented in IlvGanttHorizontalGrid, and IlvGanttCalendarGrid.

virtual IlvGanttChart* IlvGanttHorizontalGridImpl::getGanttChart

(

)

const [pure virtual]

Returns the Gantt chart for which the grid is drawn.

Subclasses should implement this function.

Returns:

The Gantt chart for which the grid is drawn.

Implemented in IlvGanttHorizontalGrid, and IlvGanttCalendarGrid.

virtual void IlvGanttHorizontalGridImpl::getGridArea

(

IlvRect &

area

)

const [pure virtual]

Returns the bounds of the grid.

Subclasses should implement this function.

Returns:

The bounds of the grid.

Implemented in IlvGanttHorizontalGrid, and IlvGanttCalendarGrid.