Applied Magnet's Patch

[sdlgit/SDL_perl.git] / lib / SDL / Tool / Graphic.pm

diff --git a/lib/SDL/Tool/Graphic.pm b/lib/SDL/Tool/Graphic.pm
index 049b31d..697089d 100644 (file)
--- a/lib/SDL/Tool/Graphic.pm
+++ b/lib/SDL/Tool/Graphic.pm
@@ -1,11 +1,38 @@
+#!/usr/bin/env perl
 #
-#      SDL::GraphicTool   -    zooming and rotating graphic tool
+# Graphic.pm
+#
+# Copyright (C) 2005 David J. Goehrig <dgoehrig@cpan.org>
+#
+# ------------------------------------------------------------------------------
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+# 
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+# 
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+#
+# ------------------------------------------------------------------------------
+#
+# Please feel free to send questions, suggestions or improvements to:
+#
+#      David J. Goehrig
+#      dgoehrig@cpan.org
 #
-#      Copyright (C) 2002 Russell E. Valentine
-#      Copyright (C) 2002 David J. Goehrig
 
 package SDL::Tool::Graphic;
 
+use strict;
+use warnings;
+use Carp;
 use SDL;
 use SDL::Config;
 require SDL::Surface;
@@ -13,7 +40,7 @@ require SDL::Surface;
 sub new {
        my $proto = shift;
        my $class = ref($proto) || $proto;
-       $self = {};
+       my $self = {};
        bless $self, $class;
        $self;
 }
@@ -26,7 +53,7 @@ sub DESTROY {
 
 sub zoom {
        my ( $self, $surface, $zoomx, $zoomy, $smooth) = @_;
-       die "SDL::Tool::Graphic::zoom requires an SDL::Surface\n"
+       croak "SDL::Tool::Graphic::zoom requires an SDL::Surface\n"
                unless ( ref($surface) && $surface->isa('SDL::Surface'));
        my $tmp = $$surface;
        $$surface = SDL::GFXZoom($$surface, $zoomx, $zoomy, $smooth);
@@ -36,7 +63,7 @@ sub zoom {
 
 sub rotoZoom {
        my ( $self, $surface, $angle, $zoom, $smooth) = @_;
-       die "SDL::Tool::Graphic::rotoZoom requires an SDL::Surface\n"
+       croak "SDL::Tool::Graphic::rotoZoom requires an SDL::Surface\n"
                unless ( ref($surface) && $surface->isa('SDL::Surface'));
        my $tmp = $$surface;
        $$surface = SDL::GFXRotoZoom($$surface, $angle, $zoom, $smooth);
@@ -46,8 +73,9 @@ sub rotoZoom {
 
 sub grayScale {
        my ( $self, $surface ) = @_;
+       my $workingSurface;
        if($surface->isa('SDL::Surface')) {
-               $workingSurface = $$surface;
+                $workingSurface = $$surface;
        } else {
                $workingSurface = $surface;
        }
@@ -71,6 +99,9 @@ sub grayScale {
  
 sub invertColor {
        my ( $self, $surface ) = @_;
+       #Added because of strict if we needed global
+    #do $workingSurface init outside subs.
+       my $workingSurface;
        if($surface->isa('SDL::Surface')) {
                $workingSurface = $$surface;
        } else {
@@ -93,51 +124,8 @@ sub invertColor {
        }
 }
 
-die "SDL::Tool::Graphic requires SDL_gfx support\n"
+croak "SDL::Tool::Graphic requires SDL_gfx support\n"
        unless SDL::Config->has('SDL_gfx');
  
 
 1;
-
-__END__;
-
-=pod
-
-
-
-=head1 NAME
-
-SDL::Tool::Graphic
-
-=head1 DESCRIPTION
-
-L<SDL::Tool::Graphic> is a module for zooming and rotating L<SDL::Surface> objects.
-
-=head1 METHODS
-
-=head2 zoom ( surface, xzoom, yzoom, smooth )
-
-C<SDL::Tool::Graphic::zoom> scales a L<SDL::Surface> along the two axis independently.
-
-=head2 rotoZoom ( surface, angle, zoom, smooth )
-
-C<SDL::Tool::Graphic::rotoZoom> rotates and fixed axis zooms a L<SDL::Surface>.
-
-=head2 grayScale ( surface )
- 
-C<SDL::Tool::Graphic::grayScale> rotates and fixed axis zooms a L<SDL::Surface>.
-
-=head2 invertColor ( surface )
-
-C<SDL::Tool::Graphic::invertColor> inverts the color of a <SDL::Surface>.
-
-
-=head1 AUTHOR
-
-Russell E. Valentine
-
-=head1 SEE ALSO
-
-L<perl> L<SDL::Surface>
-
-=cut