Graphics::Primitive::Driver::Cairo - Cairo backend for Graphics::Primitive

    use Graphics::Primitive::Component;
    use Graphics::Primitive::Driver::Cairo;

    my $driver = Graphics::Primitive::Driver::Cairo->new;
    my $container = Graphics::Primitive::Container->new(
        width => $form->sheet_width,
        height => $form->sheet_height
    );
    $container->border->width(1);
    $container->border->color($black);
    $container->padding(
        Graphics::Primitive::Insets->new(top => 5, bottom => 5, left => 5, right => 5)
    );
    my $comp = Graphics::Primitive::Component->new;
    $comp->background_color($black);
    $container->add_component($comp, 'c');

    my $lm = Layout::Manager::Compass->new;
    $lm->do_layout($container);

    my $driver = Graphics::Primitive::Driver::Cairo->new(
        format => 'PDF'
    );
    $driver->draw($container);
    $driver->write('/Users/gphat/foo.pdf');

This module draws Graphics::Primitive objects using Cairo.

Borders

Borders are drawn clockwise starting with the top one. Since cairo can't do line-joins on different colored lines, each border overlaps those before it. This is not the way I'd like it to work, but i'm opting to fix this later. Consider yourself warned.

Set/Get the antialias mode of this driver. Options are default, none, gray and subpixel.

This driver's Cairo::Context object

Get the data in a scalar for this driver.

Get the format for this driver.

Get/Set the surface on which this driver is operating.

Creates a new Graphics::Primitive::Driver::Cairo object. Requires a format.

  my $driver = Graphics::Primitive::Driver::Cairo->new(format => 'PDF');

Draws the specified component. Container's components are drawn recursively.

Returns two Rectangles (Graphics::Primitive::Rectangle) that encloses the supplied text. The origin's x and y maybe negative, meaning that the glyphs in the text extending left of x or above y.

The first rectangle is the bounding box required for a container that wants to contain the text. The second box is only useful if an optional angle is provided. This second rectangle is the bounding box of the un-rotated text that allows for a controlled rotation. If no angle is supplied then the two rectangles are actually the same object.

If the optional angle is supplied the text will be rotated by the supplied amount in radians.

Returns a Graphics::Primitive::Driver::TextLayout for the supplied textbox.

Reset the driver.

Write this driver's data to the specified file.

Cory Watson, <gphat@cpan.org>

Danny Luna

Please report any bugs or feature requests to bug-geometry-primitive at rt.cpan.org, or through the web interface at http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Geometry-Primitive. I will be notified, and then you'll automatically be notified of progress on your bug as I make changes.

Copyright 2010 by Cory G Watson

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.