DviFilePosition Class Reference

Represents a location within the DviFile. More...

#include <DviFilePosition.h>

Public Member Functions
	DviFilePosition (DviFile *, double x, double y, DviFile::DviUnits)
	Create a new marked position in a DVI file. More...
	DviFilePosition (DviFilePosition *, double x, double y, DviFile::DviUnits)
	Create a new marked position in a DVI file. More...
double	getX (const DviFile::DviUnits u)
	Retrieve the x-coordinate of this position. More...
double	getY (const DviFile::DviUnits u)
	Retrieve the y-coordinate of this position. More...
void	shift (double dx, double dy, DviFile::DviUnits u)
	Shift the mark position by the given amount. More...
void	scale (double factor)
	Scale the position by the given factor. More...
DviFilePosition *	copy ()
	Return a copy of the object. More...

Static Public Member Functions
static verbosities	verbosity (const verbosities level)

Detailed Description

Represents a location within the DviFile.

Coordinates x and y are relative to the top-left corner of the `page', with the pixel in the top-left corner having coordinates (0,0). Note that this is different from DVI coordinates, which have their origin at a point one inch in and one inch down from the top-left of the `paper'.

Constructor & Destructor Documentation

DviFilePosition::DviFilePosition	(	DviFile *	f,
		double	x,
		double	y,
		DviFile::DviUnits	u
	)

Create a new marked position in a DVI file.

Parameters

f	the DVI file of interest
x	the x-coordinate of the position
y	the y-coordinate of the position
u	the units of the (x,y) position

References DviFile::convertFromScaledPoints(), DviFile::convertToScaledPoints(), normal, and DviFile::unit_pixels.

Referenced by copy().

DviFilePosition::DviFilePosition	(	DviFilePosition *	dvifp,
		double	x,
		double	y,
		DviFile::DviUnits	u
	)

Create a new marked position in a DVI file.

Parameters

dvifp	use the DVI file referred to by this class
x	the x-coordinate of the position
y	the y-coordinate of the position
u	the units of the (x,y) position

References DviFile::convertToScaledPoints().

Member Function Documentation

DviFilePosition * DviFilePosition::copy

(

)

Return a copy of the object.

References DviFilePosition(), and DviFile::unit_sp.

Referenced by Bitmap::getMark().

double DviFilePosition::getX

(

const DviFile::DviUnits

u)

Retrieve the x-coordinate of this position.

Parameters

u	express the answer in these units

Returns

the x-coordinate in the required units

References DviFile::convertFromScaledPoints().

Referenced by Bitmap::mark(), and Bitmap::write().

double DviFilePosition::getY

(

const DviFile::DviUnits

u)

Retrieve the y-coordinate of this position.

Parameters

u	express the answer in these units

Returns

the y-coordinate in the required units

References DviFile::convertFromScaledPoints().

Referenced by Bitmap::mark(), and Bitmap::write().

void DviFilePosition::scale

(

double

factor)

Scale the position by the given factor.

The scaling is done in such a way that the coordinate (0,0) remains `fixed'.

Parameters

factor

a scaling factor, by which all distances are multiplied

References DviFile::convertFromScaledPoints(), normal, and DviFile::unit_pixels.

void DviFilePosition::shift	(	double	dx,
		double	dy,
		DviFile::DviUnits	u
	)

Shift the mark position by the given amount.

Parameters

dx	the amount to shift in the x direction
dy	the amount to shift in the y direction
u	the units in which dx and dy are expressed

References DviFile::convertFromScaledPoints(), DviFile::convertToScaledPoints(), normal, and DviFile::unit_pixels.

Referenced by Bitmap::getMark().

static verbosities DviFilePosition::verbosity ( const verbosities  level)

inlinestatic

Referenced by main().

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

• DviFilePosition.h
• DviFilePosition.cc