SYNOPSIS
use Prima;
use Prima::PS::Drawable;
my $x = Prima::PS::Drawable-> 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.
- ::useDeviceFonts
- 1 by default; optimizes greatly text operations, but takes the risk that a character could be drawn incorrectly or not drawn at all - this behavior depends on a particular PS interpreter.
- ::useDeviceFontsOnly
-
If 1, the system fonts, available from Prima::Application
interfaces can not be used. It is designed for
developers and the outside-of-Prima applications that wish to
use PS generation module without graphics. If 1, "::useDeviceFonts"
is set to 1 automatically.
Default value is 0
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::Drawable 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::font plus those that defined into Prima::PS::Fonts module.