| 1 | package Pastel::Geometry::EllipseIterator;\r |
| 2 | @ISA = qw(Pastel::Geometry::PathIteratorI Pastel::Mixin::Mixin);\r |
| 3 | use Pastel::Geometry::PathIteratorI;\r |
| 4 | use Pastel::Mixin::Mixin;\r |
| 5 | use strict;\r |
| 6 | use Carp;\r |
| 7 | \r |
| 8 | sub new {\r |
| 9 | my $class = shift;\r |
| 10 | my $self = {};\r |
| 11 | bless $self, ref($class) || $class;\r |
| 12 | $self->_init(@_);\r |
| 13 | return $self;\r |
| 14 | }\r |
| 15 | \r |
| 16 | sub _init {\r |
| 17 | my ($self, @args) = @_;\r |
| 18 | if (@args < 2 ){\r |
| 19 | croak "Error: Isufficent argument in Pastel::Geometry::EllipseIterator!\n";\r |
| 20 | }\r |
| 21 | elsif ( ref($args[0]) ne "Pastel::Geometry::Ellipse"){\r |
| 22 | croak "First argument of the Pastel::Geometry::EllipseIterator::new\n\r |
| 23 | has to be a Pastel::Geometry::Ellipse\n";\r |
| 24 | }\r |
| 25 | \r |
| 26 | elsif ( ref($args[1]) ne "Pastel::Geometry::AffineTransform"){\r |
| 27 | croak "Second argument of Pastel::Geometry::EllipseIterator::new\n\r |
| 28 | has to be a Pastel::Geometry::AffineTransform\n";\r |
| 29 | }\r |
| 30 | \r |
| 31 | else {\r |
| 32 | $self->{x} = $args[0]->get_x();\r |
| 33 | $self->{y} = $args[0]->get_y();\r |
| 34 | $self->{w} = $args[0]->get_width();\r |
| 35 | $self->{h} = $args[0]->get_height();\r |
| 36 | $self->{affine} = $args[1];\r |
| 37 | $self->{index} = 0;\r |
| 38 | \r |
| 39 | if ( $self->{w} < 0 || $self->{h} < 0){\r |
| 40 | $self->{index} = 6;\r |
| 41 | }\r |
| 42 | }\r |
| 43 | \r |
| 44 | return $self;\r |
| 45 | }\r |
| 46 | \r |
| 47 | sub get_winding_rule {\r |
| 48 | my ($self, @args)= @_;\r |
| 49 | #print "winding rule called\n";\r |
| 50 | #print $WIND_NON_ZERO;\r |
| 51 | return $Pastel::Geometry::PathIteratorI::WIND_NON_ZERO;\r |
| 52 | }\r |
| 53 | \r |
| 54 | sub is_done {\r |
| 55 | my $self = shift;\r |
| 56 | return $self->{index} > 5;\r |
| 57 | }\r |
| 58 | \r |
| 59 | sub next {\r |
| 60 | my $self = shift;\r |
| 61 | $self->{index}++;\r |
| 62 | }\r |
| 63 | \r |
| 64 | \r |
| 65 | 1;\r |
| 66 | \r |
| 67 | \r |
| 68 | \r |