X-Git-Url: http://git.imager.perl.org/imager.git/blobdiff_plain/4f57931328ecb8d322c3244e519e9fc18f46e5bd..dc96e46cbbdfd9f0997dc12ddac6dfcf55412ff2:/Imager.pm

diff --git a/Imager.pm b/Imager.pm
index 159d0c80..0f684aec 100644
--- a/Imager.pm
+++ b/Imager.pm
@@ -146,7 +146,7 @@ use Imager::Font;
 BEGIN {
   require Exporter;
   @ISA = qw(Exporter);
-  $VERSION = '0.47';
+  $VERSION = '0.48';
   eval {
     require XSLoader;
     XSLoader::load(Imager => $VERSION);
@@ -241,11 +241,26 @@ BEGIN {
      }
     };
 
-  $filters{nearest_color} ={
-			    callseq => ['image', 'xo', 'yo', 'colors', 'dist'],
-			    defaults => { },
-			    callsub => sub { my %hsh=@_; i_nearest_color($hsh{image}, $hsh{xo}, $hsh{yo}, $hsh{colors}, $hsh{dist}); }
-			   };
+  $filters{nearest_color} =
+    {
+     callseq => ['image', 'xo', 'yo', 'colors', 'dist'],
+     defaults => { },
+     callsub => 
+     sub { 
+       my %hsh=@_; 
+       # make sure the segments are specified with colors
+       my @colors;
+       for my $color (@{$hsh{colors}}) {
+         my $new_color = _color($color) 
+           or die $Imager::ERRSTR."\n";
+         push @colors, $new_color;
+       }
+
+       i_nearest_color($hsh{image}, $hsh{xo}, $hsh{yo}, \@colors, 
+                       $hsh{dist})
+         or die Imager->_error_as_msg() . "\n";
+     },
+    };
   $filters{gaussian} = {
                         callseq => [ 'image', 'stddev' ],
                         defaults => { },
@@ -372,7 +387,8 @@ BEGIN {
 
        i_fountain($hsh{image}, $hsh{xa}, $hsh{ya}, $hsh{xb}, $hsh{yb},
                   $hsh{ftype}, $hsh{repeat}, $hsh{combine}, $hsh{super_sample},
-                  $hsh{ssample_param}, \@segments);
+                  $hsh{ssample_param}, \@segments)
+         or die Imager->_error_as_msg() . "\n";
      },
     };
   $filters{unsharpmask} =
@@ -1818,8 +1834,8 @@ sub scale {
 # Scales only along the X axis
 
 sub scaleX {
-  my $self=shift;
-  my %opts=(scalefactor=>0.5,@_);
+  my $self = shift;
+  my %opts = ( scalefactor=>0.5, @_ );
 
   unless (defined wantarray) {
     my @caller = caller;
@@ -1827,24 +1843,39 @@ sub scaleX {
     return;
   }
 
-  unless ($self->{IMG}) { $self->{ERRSTR}='empty input image'; return undef; }
+  unless ($self->{IMG}) { 
+    $self->{ERRSTR} = 'empty input image';
+    return undef;
+  }
 
   my $img = Imager->new();
 
-  if ($opts{pixels}) { $opts{scalefactor}=$opts{pixels}/$self->getwidth(); }
+  my $scalefactor = $opts{scalefactor};
 
-  unless ($self->{IMG}) { $self->{ERRSTR}='empty input image'; return undef; }
-  $img->{IMG}=i_scaleaxis($self->{IMG},$opts{scalefactor},0);
+  if ($opts{pixels}) { 
+    $scalefactor = $opts{pixels} / $self->getwidth();
+  }
+
+  unless ($self->{IMG}) { 
+    $self->{ERRSTR}='empty input image'; 
+    return undef;
+  }
+
+  $img->{IMG} = i_scaleaxis($self->{IMG}, $scalefactor, 0);
+
+  if ( !defined($img->{IMG}) ) { 
+    $self->{ERRSTR} = 'unable to scale image'; 
+    return undef;
+  }
 
-  if ( !defined($img->{IMG}) ) { $self->{ERRSTR}='unable to scale image'; return undef; }
   return $img;
 }
 
 # Scales only along the Y axis
 
 sub scaleY {
-  my $self=shift;
-  my %opts=(scalefactor=>0.5,@_);
+  my $self = shift;
+  my %opts = ( scalefactor => 0.5, @_ );
 
   unless (defined wantarray) {
     my @caller = caller;
@@ -1856,16 +1887,26 @@ sub scaleY {
 
   my $img = Imager->new();
 
-  if ($opts{pixels}) { $opts{scalefactor}=$opts{pixels}/$self->getheight(); }
+  my $scalefactor = $opts{scalefactor};
 
-  unless ($self->{IMG}) { $self->{ERRSTR}='empty input image'; return undef; }
-  $img->{IMG}=i_scaleaxis($self->{IMG},$opts{scalefactor},1);
+  if ($opts{pixels}) { 
+    $scalefactor = $opts{pixels} / $self->getheight();
+  }
+
+  unless ($self->{IMG}) { 
+    $self->{ERRSTR} = 'empty input image'; 
+    return undef;
+  }
+  $img->{IMG}=i_scaleaxis($self->{IMG}, $scalefactor, 1);
+
+  if ( !defined($img->{IMG}) ) {
+    $self->{ERRSTR} = 'unable to scale image';
+    return undef;
+  }
 
-  if ( !defined($img->{IMG}) ) { $self->{ERRSTR}='unable to scale image'; return undef; }
   return $img;
 }
 
-
 # Transform returns a spatial transformation of the input image
 # this moves pixels to a new location in the returned image.
 # NOTE - should make a utility function to check transforms for
@@ -2025,8 +2066,14 @@ sub rubthrough {
   my $self=shift;
   my %opts=(tx => 0,ty => 0, @_);
 
-  unless ($self->{IMG}) { $self->{ERRSTR}='empty input image'; return undef; }
-  unless ($opts{src} && $opts{src}->{IMG}) { $self->{ERRSTR}='empty input image for source'; return undef; }
+  unless ($self->{IMG}) { 
+    $self->{ERRSTR}='empty input image'; 
+    return undef;
+  }
+  unless ($opts{src} && $opts{src}->{IMG}) {
+    $self->{ERRSTR}='empty input image for src'; 
+    return undef;
+  }
 
   %opts = (src_minx => 0,
 	   src_miny => 0,
@@ -2035,8 +2082,9 @@ sub rubthrough {
 	   %opts);
 
   unless (i_rubthru($self->{IMG}, $opts{src}->{IMG}, $opts{tx}, $opts{ty},
-	  $opts{src_minx}, $opts{src_miny}, $opts{src_maxx}, $opts{src_maxy})) {
-    $self->{ERRSTR} = $self->_error_as_msg();
+                    $opts{src_minx}, $opts{src_miny}, 
+                    $opts{src_maxx}, $opts{src_maxy})) {
+    $self->_set_error($self->_error_as_msg());
     return undef;
   }
   return $self;
@@ -2091,9 +2139,16 @@ sub rotate {
   elsif (defined $opts{radians} || defined $opts{degrees}) {
     my $amount = $opts{radians} || $opts{degrees} * 3.1415926535 / 180;
 
+    my $back = $opts{back};
     my $result = Imager->new;
-    if ($opts{back}) {
-      $result->{IMG} = i_rotate_exact($self->{IMG}, $amount, $opts{back});
+    if ($back) {
+      $back = _color($back);
+      unless ($back) {
+        $self->_set_error(Imager->errstr);
+        return undef;
+      }
+
+      $result->{IMG} = i_rotate_exact($self->{IMG}, $amount, $back);
     }
     else {
       $result->{IMG} = i_rotate_exact($self->{IMG}, $amount);
@@ -3334,7 +3389,7 @@ channel values
 
 masked() -  L<Imager::ImageTypes/masked> - make a masked image
 
-matrix_transform() - L<Imager::Engines/"Matrix Transformations">
+matrix_transform() - L<Imager::Engines/matrix_transform>
 
 maxcolors() - L<Imager::ImageTypes/maxcolors>
 
@@ -3360,8 +3415,6 @@ image and use the alpha channel
 
 scale() - L<Imager::Transformations/scale>
 
-setscanline() - L<Imager::Draw/setscanline>
-
 scaleX() - L<Imager::Transformations/scaleX>
 
 scaleY() - L<Imager::Transformations/scaleY>
@@ -3371,6 +3424,10 @@ a paletted image
 
 setpixel() - L<Imager::Draw/setpixel>
 
+setscanline() - L<Imager::Draw/setscanline>
+
+settag() - L<Imager::ImageTypes/settag>
+
 set_file_limits() - L<Imager::Files/"Limiting the sizes of images you read">
 
 string() - L<Imager::Draw/string> - draw text on an image