CAM::PDF::GS - PDF graphic state
use CAM::PDF;
my $pdf = CAM::PDF->new($filename);
my $contentTree = $pdf->getPageContentTree(4);
my $gs = $contentTree->computeGS();
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.
- $self->getCoords($node)
- Computes device coordinates for the specified node. This implementation
handles text-printing nodes, and hands all other types to the
superclass.
- $self->textToUser($x, $y)
- Convert text coordinates ("Tm") to user
coordinates. Returns the converted X and Y.
- $self->textToDevice($x, $y)
- Convert text coordinates ("Tm") to
device coordinates. Returns the converted X and Y.
- $self->textLineToUser($x, $y)
- Convert text coordinates ("Tlm") to user
coordinates. Returns the converted X and Y.
- $self->textLineToDevice($x, $y)
- Convert text coordinates ("Tlm") to
device coordinates. Returns the converted X and Y.
- $self->renderText($string, $width)
- A general method for rendering strings, from
"Tj" or
"TJ". This is a no-op, but subclasses
may override.
- $self->Tadvance($width)
- Move the text cursor.
- $self->BT()
- $self->Tf($fontname, $fontsize)
- $self->Tstar()
- $self->Tz($scale)
- $self->Td($x, $y)
- $self->TD($x, $y)
- $self->Tj($string)
- $self->TJ($arrayref)
- $self->quote($string)
- $self->doublequote($tw, $tc, $string)
- $self->Tm($m1, $m2, $m3, $m4, $m5, $m6)