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Graphics::Primitive::CUsersContributed Perl DocuGraphics::Primitive::Canvas(3)

NAME
       Graphics::Primitive::Canvas - Component composed	of paths

DESCRIPTION
       Graphics::Primitive::Canvas is a	component for drawing arbitrary
       things.	It holds Paths and Operations.

SYNOPSIS
	 use Graphics::Primitive::Canvas;

	 my $canvas = Graphics::Primitive::Canvas->new;
	 $canvas->move_to($point); # or	just $x, $y
	 $canvas->do($op);

DESCRIPTION
       The Canvas is a container for multiple Paths.  It has a path that is
       the operative path for all path-related methods.	 You can treat the
       Canvas as if it was a path, calling methods like	line_to	or move_to.

       When you	are ready to perform an	operation on the path, call the	do
       method with the operation you want to call as an	argument.  Drawing a
       line and	stroking it would look like:

	 $canvas->move_to(0, 0);
	 $canvas->line_to(10, 10);
	 my $op	= Graphics::Primitive::Operation::Stroke->new;
	 $stroke->brush->color(
	     Graphics::Color::RGB->new(red => 0, blue => 1, green => 1)
	 );
	 $canvas->do($op);

       When you	instantiate a Canvas a newly instantiated path resides in
       path.  After you	call do	that current path is moved to the paths	list
       and new path is placed in current_path.	If you want to keep the	path
       around you can call save	before do then call restore to put a saved
       copy of the path	back into path.

METHODS
   Constructor
       new Creates a new Graphics::Primitive::Canvas

   Instance Methods
       do  Given an operation, pushes the current path onto the	path stack.

	     FIXME: Example

       path
	   The current path this canvas	is using.

       path_count
	   Count of paths in paths.

       paths
	   Arrayref of hashrefs	representing paths combined with their
	   operations:

	     [
	       {
		   path	=> $path,
		   op	=> $op
	       },
	     ]

       restore
	   Replace the current path by popping the top path from the saved
	   path	list.

       save
	   Copy	the current path and push it onto the stack of saved paths.

       saved_paths
	   List	of saved paths.	 Add to	the list with save and pop from	it
	   using restore.

       saved_path_count
	   Count of paths saved	in saved_paths.

AUTHOR
       Cory Watson <gphat@cpan.org>

COPYRIGHT & LICENSE
       Copyright 2008-2010 by Cory G Watson.

       You can redistribute and/or modify this code under the same terms as
       Perl itself.

perl v5.24.1			  2015-01-04	Graphics::Primitive::Canvas(3)

NAME | DESCRIPTION | SYNOPSIS | DESCRIPTION | METHODS | AUTHOR | COPYRIGHT & LICENSE

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