From 34123b9d0460b50118a76290aafa0fc31eb365b1 Mon Sep 17 00:00:00 2001
From: Jesse Luehrs <doy@tozt.net>
Date: Tue, 7 Oct 2014 13:38:16 -0400
Subject: add some accessors

---
 lib/Image/PNM.pm | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)

(limited to 'lib')

diff --git a/lib/Image/PNM.pm b/lib/Image/PNM.pm
index 31d4c93..bc748e7 100644
--- a/lib/Image/PNM.pm
+++ b/lib/Image/PNM.pm
@@ -35,6 +35,44 @@ sub as_string {
     return $self->$method;
 }
 
+sub width {
+    my $self = shift;
+    return $self->{w};
+}
+
+sub height {
+    my $self = shift;
+    return $self->{h};
+}
+
+sub max_pixel_value {
+    my $self = shift;
+    return $self->{max};
+}
+
+sub pixel {
+    my $self = shift;
+    my ($row, $col) = @_;
+
+    my $pixel = $self->raw_pixel($row, $col);
+    return [ map { $_ / $self->{max} } @$pixel ];
+}
+
+sub raw_pixel {
+    my $self = shift;
+    my ($row, $col) = @_;
+
+    my $pixel = $self->{pixels}[$row][$col];
+    die "invalid pixel location ($row, $col)"
+        unless defined $pixel;
+
+    if (!ref $pixel) {
+        $pixel = [ $pixel, $pixel, $pixel ];
+    }
+
+    return $pixel;
+}
+
 sub _as_string_P3 {
     my $self = shift;
 
-- 
cgit v1.2.3-54-g00ecf