NAME

CAM::PDF::GS - PDF graphic state

LICENSE

See CAM::PDF.

SYNOPSIS

use CAM::PDF;
my $pdf = CAM::PDF->new($filename);
my $contentTree = $pdf->getPageContentTree(4);
my $gs = $contentTree->computeGS();

DESCRIPTION

This class is used to represent the graphic state at a point in the rendering flow of a PDF page. Much of the functionality is actually based in the parent class, CAM::PDF::GS::NoText.

Subclasses that want to do something useful with text should override the renderText() method.

CONVERSION FUNCTIONS

getCoords NODE

Computes device coords for the specified node. This implementation handles text-printing nodes, and hands all other types to the superclass.

textToUser X, Y

Convert text coordinates (Tm) to user coordinates. Returns the converted X and Y.

textToDevice X, Y

Convert text coordinates (Tm) to device coordinates. Returns the converted X and Y.

textLineToUser X, Y

Convert text coordinates (Tlm) to user coordinates. Returns the converted X and Y.

textLineToDevice X, Y

Convert text coordinates (Tlm) to device coordinates. Returns the converted X and Y.

renderText STRING, WIDTH

A general method for rendering strings, from Tj or TJ. This is a no-op, but subclasses may override.

Tadvance WIDTH

Move the text cursor.

DATA FUNCTIONS

BT

Tf FONTNAME, FONTSIZE

Tstar

Tz SCALE

Td X, Y

TD X, Y

Tj STRING

TJ ARRAYREF

quote

doublequote

Tm M1, M2, M3, M4, M5, M6

AUTHOR

Clotho Advanced Media Inc., cpan@clotho.com