NAME

Prima::PS::PostScript - PostScript interface to Prima::Drawable

SYNOPSIS

        use Prima;
        use Prima::PS::PostScript;

        my $x = Prima::PS::PostScript-> create( onSpool => sub {
                open F, ">> ./test.ps";
                print F $_[1];
                close F;
        });
        die "error:$@" unless $x-> begin_doc;
        $x-> font-> size( 30);
        $x-> text_out( "hello!", 100, 100);
        $x-> end_doc;

DESCRIPTION

Realizes the Prima library interface to PostScript level 2 document language. The module is designed to be compliant with Prima::Drawable interface. All properties' behavior is as same as Prima::Drawable's, except those described below.

Inherited properties

::resolution: Can be set while object is in normal stage - cannot be changed if document is opened. Applies to fillPattern realization and general pixel-to-point and vice versa calculations
::region: - ::region is not realized ( yet?)

Specific properties

::copies: amount of copies that PS interpreter should print
::grayscale: could be 0 or 1
::pageSize: physical page dimension, in points
::pageMargins: non-printable page area, an array of 4 integers: left, bottom, right and top margins in points.
::reversed: if 1, a 90 degrees rotated document layout is assumed
::rotate and ::scale: along with Prima::Drawable::translate provide PS-specific transformation matrix manipulations. ::rotate is number, measured in degrees, counter-clockwise. ::scale is array of two numbers, respectively x- and y-scale. 1 is 100%, 2 is 200% etc.

Internal methods

emit

Can be called for direct PostScript code injection. Example:

        $x-> emit('0.314159 setgray');
        $x-> bar( 10, 10, 20, 20);

pixel2point and point2pixel

Helpers for translation from pixel to points and vice versa.

fill & stroke

Wrappers for PS outline that is expected to be filled or stroked. Apply colors, line and fill styles if necessary.

spool

Prima::PS::PostScript is not responsible for output of generated document, it just calls ::spool when document is closed through ::end_doc. By default just skips data. Prima::PS::Printer handles spooling logic.

fonts

Returns Prima::Application::fonts, however with "iso10646-1" encoding only. That effectively allows only unicode output.