/usr/share/perl5/Shutter/Pixbuf/Save.pm is in shutter 0.94-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#
# Copyright (C) 2008-2013 Mario Kemper <mario.kemper@gmail.com>
#
# This file is part of Shutter.
#
# Shutter is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# Shutter 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Shutter; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
#
###################################################
package Shutter::Pixbuf::Save;
#modules
#--------------------------------------
use utf8;
use strict;
use warnings;
use Gtk2;
#fileparse and tempfile
use File::Basename qw/ fileparse dirname basename /;
use File::Temp qw/ tempfile tempdir /;
#Glib
use Glib qw/TRUE FALSE/;
#--------------------------------------
sub new {
my $class = shift;
#constructor
my $self = { _common => shift, _window => shift };
#import shutter dialogs
my $current_window = $self->{_window} || $self->{_common}->get_mainwindow;
$self->{_dialogs} = Shutter::App::SimpleDialogs->new( $current_window );
$self->{_lp} = Shutter::Pixbuf::Load->new( $self->{_common}, $current_window );
bless $self, $class;
return $self;
}
sub save_pixbuf_to_file {
my $self = shift;
my $pixbuf = shift;
my $filename = shift;
my $filetype = shift;
my $quality = shift;
#gettext variable
my $d = $self->{_common}->get_gettext;
#check if we need to rotate the image or set the exif data accordingly
my $option = $self->{_lp}->get_option($pixbuf, 'orientation');
$option = 1 unless defined $option;
#FIXME: NOT COVERED BY BINDINGS YET (we use Image::ExifTool instead)
#we rotate the pixbuf when saving to any other format than jpeg (jpg)
unless ( $filetype eq 'jpeg' || $filetype eq 'jpg') {
if($option != 1){
$pixbuf = $self->{_lp}->auto_rotate($pixbuf);
}
}
#we have two main ways of saving file
#when possible we try to use all supported formats of the gdk-pixbuf libs
#currently this is bmp, jpeg (jpg), png and ico (ico is not useful here)
my $imagemagick_result = undef;
if ( $filetype eq 'jpeg' || $filetype eq 'jpg' ) {
#get quality value from settings if not set
if(my $settings = $self->{_common}->get_globalsettings_object){
if(defined $settings->get_jpg_quality){
$quality = $settings->get_jpg_quality;
}else{
$quality = 90;
}
}else{
$quality = 90;
}
print "Saving file $filename, $filetype, $quality\n" if $self->{_common}->get_debug;
eval{
$pixbuf->save( $filename, 'jpeg', quality => $quality );
#FIXME: NOT COVERED BY BINDINGS YET (we use Image::ExifTool instead)
#~ $pixbuf->set_option( 'orientation' => $option );
if(my $exif = Shutter::App::Optional::Exif->new()){
#new Image::ExifTool instance
my $exiftool = $exif->get_exiftool;
if($exiftool){
#Set a new value for a tag
$exiftool->SetNewValue('Orientation' => $option, Type => 'ValueConv');
#Write new meta information to a file
my $success = $exiftool->WriteInfo($filename);
}
}
};
} elsif ( $filetype eq 'png' ) {
#get quality value from settings if not set
if(my $settings = $self->{_common}->get_globalsettings_object){
if(defined $settings->get_png_quality){
$quality = $settings->get_png_quality;
}else{
$quality = 9;
}
}else{
$quality = 9;
}
print "Saving file $filename, $filetype, $quality\n" if $self->{_common}->get_debug;
eval{
$pixbuf->save( $filename, $filetype, "tEXt::Software" => "Shutter", compression => $quality );
};
} elsif ( $filetype eq 'bmp' ) {
eval{
$pixbuf->save( $filename, $filetype );
};
} elsif ( $filetype eq 'pdf' ) {
print "Saving file $filename, $filetype\n" if $self->{_common}->get_debug;
#0.8? => 72 / 90 dpi
my $surface = Cairo::PdfSurface->create($filename, $pixbuf->get_width * 0.8, $pixbuf->get_height * 0.8);
my $cr = Cairo::Context->create($surface);
$cr->scale(0.8, 0.8);
Gtk2::Gdk::Cairo::Context::set_source_pixbuf( $cr, $pixbuf, 0, 0 );
$cr->paint;
$cr->show_page;
undef $surface;
undef $cr;
} elsif ( $filetype eq 'ps' ) {
print "Saving file $filename, $filetype\n" if $self->{_common}->get_debug;
#0.8? => 72 / 90 dpi
my $surface = Cairo::PsSurface->create($filename, $pixbuf->get_width * 0.8, $pixbuf->get_height * 0.8);
my $cr = Cairo::Context->create($surface);
$cr->scale(0.8, 0.8);
Gtk2::Gdk::Cairo::Context::set_source_pixbuf( $cr, $pixbuf, 0, 0 );
$cr->paint;
$cr->show_page;
undef $surface;
undef $cr;
} elsif ( $filetype eq 'svg' ) {
print "Saving file $filename, $filetype\n" if $self->{_common}->get_debug;
#0.8? => 72 / 90 dpi
my $surface = Cairo::SvgSurface->create($filename, $pixbuf->get_width * 0.8, $pixbuf->get_height * 0.8);
my $cr = Cairo::Context->create($surface);
$cr->scale(0.8, 0.8);
Gtk2::Gdk::Cairo::Context::set_source_pixbuf( $cr, $pixbuf, 0, 0 );
$cr->paint;
$cr->show_page;
undef $surface;
undef $cr;
} else {
print "Saving file $filename, $filetype, $quality (using fallback-mode)\n" if $self->{_common}->get_debug;
#save pixbuf to tempfile
my ( $tmpfh, $tmpfilename ) = tempfile();
$tmpfilename .= '.png';
if($pixbuf){
$pixbuf->save( $tmpfilename, 'png', compression => '9' );
}
#and convert filetype with imagemagick
$imagemagick_result = $self->use_imagemagick_to_save($tmpfilename, $filename);
unlink $tmpfilename;
}
#handle possible error messages
#we use eval to test the pixbuf methods
#and error messages provided
#by the imagemagick libs
if ($@ || $imagemagick_result) {
#parse filename
my ( $name, $folder, $type ) = fileparse( $filename, qr/\.[^.]*/ );
my $detailed_message = 'Unknown error';
if($@){
$detailed_message = $@->message;
}elsif($imagemagick_result){
$detailed_message = $imagemagick_result;
}
#nice error dialog, more detailed messages are shown with a gtk2 expander
my $response = $self->{_dialogs}->dlg_error_message(
sprintf( $d->get("Error while saving the image %s."), "'" . $name.$type . "'"),
sprintf( $d->get("There was an error saving the image to %s."), "'" . $folder . "'"),
undef, undef, undef,
undef, undef, undef,
$detailed_message
);
return FALSE;
}
return TRUE;
}
#use imagemagick for all filetypes that are not
#supported by the gdk-pixbuf libs
#e.g. gif
sub use_imagemagick_to_save {
my $self = shift;
my $file = shift;
my $new_file = shift;
#escape filename first
$file = quotemeta $file;
$new_file = quotemeta $new_file;
my $result = `convert $file $new_file 2>&1`;
return $result;
}
1;
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