/usr/share/perl5/GooCanvas2.pm is in libgoocanvas2-perl 0.06-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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use 5.006000;
use strict;
use warnings;
use Glib::Object::Introspection;
our $VERSION = '0.06';
# customization ------------------------------------------------------- #
my %_NAME_CORRECTIONS = (
);
my @_CLASS_STATIC_METHODS = qw/
/;
my @_FLATTEN_ARRAY_REF_RETURN_FOR = qw/
GooCanvas2::Canvas::get_items_at
GooCanvas2::Canvas::get_items_in_area
GooCanvas2::CanvasItem::get_items_at
GooCanvas2::CanvasItem::class_list_child_properties
GooCanvas2::CanvasItemModel::class_list_child_properties
/;
# HANDLE SENTINAL BOOLEAN FOR
# Unsicher bin ich mir bei GooCanvas2::CanvasItem::get_transform
# GooCanvas2::CanvasItem::get_simple_transform ist an sich eine Funktion, die ein
# bool'sches und weitere out-Argumente zurückgibt. Allerdings sind diese nicht NULL
# wenn die Funktion unwahr zurückgibt (sd. bspw. undef, 0, 0, 1, 0). Daher lass ich es raus.
# Das selbe gilt für die entsprechenden Funktionen in CanvasItem (get_transform
# und get_simple_transform)
my @_HANDLE_SENTINEL_BOOLEAN_FOR = qw/
/;
my @_USE_GENERIC_SIGNAL_MARSHALLER_FOR = (
);
sub import {
Glib::Object::Introspection->setup(
basename => 'GooCanvas',
version => '2.0',
package => 'GooCanvas2',
name_corrections => \%_NAME_CORRECTIONS,
class_static_methods =>\@_CLASS_STATIC_METHODS,
flatten_array_ref_return_for =>\@_FLATTEN_ARRAY_REF_RETURN_FOR,
handle_sentinel_boolean_for => \@_HANDLE_SENTINEL_BOOLEAN_FOR);
}
# Preloaded methods go here.
1;
__END__
# Below is stub documentation for your module. You'd better edit it!
=head1 NAME
GooCanvas2 - Perl binding for GooCanvas2 widget using Glib::Object::Introspection
=head1 SYNOPSIS
#!/usr/bin/perl -w
use strict;
use warnings;
use Gtk3 -init;
use GooCanvas2;
my $window = Gtk3::Window->new();
$window->set_default_size(640, 600);
$window->signal_connect('destroy' => sub {Gtk3->main_quit()});
my $scrolled_win = Gtk3::ScrolledWindow->new();
$scrolled_win->set_shadow_type('in');
my $canvas = GooCanvas2::Canvas->new();
$canvas->set_size_request(600,450);
$canvas->set_bounds(0,0,1000,1000);
$scrolled_win->add($canvas);
my $root = $canvas->get_root_item();
# Add a few simple items
my $rect_item = GooCanvas2::CanvasRect->new('parent' => $root,
'x' => 100,
'y' => 100,
'width' => 300,
'height' => 300,
'line_width' => 10.0,
'radius-x' => 20.0,
'radius-y' => 10.0,
'stroke-color' => 'yellow',
'fill-color' => 'red');
my $text_item = GooCanvas2::CanvasText->new('parent' => $root,
'text' => 'Hello World',
'x' => 300, 'y' => 300,
'width' => -1,
'anchor' => 'center',
'font' => 'Sans 24');
$text_item->rotate(45, 300, 300);
# Connect a signal handler for the rectangle item.
$rect_item->signal_connect('button_press_event' => \&on_rect_button_press);
$window->add($scrolled_win);
$window->show_all;
# Pass control to the Gtk3 main event loop
Gtk3->main();
# This handles button presses in item views.
#We simply output a message to the console
sub on_rect_button_press {
my ($item, $target, $event) = @_;
print "rect item received button press event \n";
return 1;
}
=head1 INSTALLATION
You need to install the typelib file for GooCanvas-2.0. For example on Debian/Ubuntu it should be necessary to install the following package:
sudo apt-get install gir1.2-goocanvas-2.0
On Mageia for example you have to install:
urpmi lib64goocanvas-gir2.0
=head1 DESCRIPTION
GooCanvas2 is a new canvas widget for use with Gtk3 that uses the Cairo 2d library for drawing. This is a simple and basic implementation of this wonderful Canvas widget.
For more information see L<https://wiki.gnome.org/action/show/Projects/GooCanvas>
For instructions, how to use GooCanvas2, please study the API reference at L<https://developer.gnome.org/goocanvas/unstable/> for now. A perl-specific documentation will perhaps come in later versions. But applying the C documentation should be no problem.
=head2 OBJECTS, ITEMS, MODELS
The GooCanvas2 module provides the following objects, items and models. For more details see L<https://wiki.gnome.org/action/show/Projects/GooCanvas>.
=head3 Core Objects
=over
=item * GooCanvas2::Canvas - the main canvas widget
=item * GooCanvas2::CanvasItem - the interface for canvas items
=item * GooCanvas2::CanvasItemModel - the interface for canvas item models.
=item * GooCanvas2::CanvasItemSimple - the base class for the standard canvas items.
=item * GooCanvas2::CanvasItemModelSimple - the base class for the standard canvas item models.
=item * GooCanvas2::CanvasStyle - support for cascading style properties for canvas items.
=back
=head3 Standard Canvas Items
=over
=item * GooCanvas2::CanvasGroup - a group of items.
=item * GooCanvas2::CanvasEllipse - an ellipse item.
=item * GooCanvas2::CanvasGrid - a grid item.
=item * GooCanvas2::CanvasImage - an image item.
=item * GooCanvas2::CanvasPath - a path item (a series of lines and curves).
=item * GooCanvas2::CanvasPolyline - a polyline item (a series of lines with optional arrows).
=item * GooCanvas2::CanvasRect - a rectangle item.
=item * GooCanvas2::CanvasText - a text item.
=item * GooCanvas2::CanvasWidget - an embedded widget item.
=item * GooCanvas2::CanvasTable - a table container to layout items.
=back
=head3 Standard Canvas Item Models
=over
=item * GooCanvas2::CanvasGroupModel - a model for a group of items.
=item * GooCanvas2::CanvasEllipseModel - a model for ellipse items.
=item * GooCanvas2::CanvasGridModel - a model for grid items.
=item * GooCanvas2::CanvasImageModel - a model for image items.
=item * GooCanvas2::CanvasPathModel - a model for path items (a series of lines and curves).
=item * GooCanvas2::CanvasPolylineModel - a model for polyline items (a series of lines with optional arrows).
=item * GooCanvas2::CanvasRectModel - a model for rectangle items.
=item * GooCanvas2::CanvasTextModel - a model for text items.
=item * GooCanvas2::CanvasTableModel - a model for a table container to layout items.
=back
=head2 Development status and informations
=head3 Customizations and overrides
In order to make things more Perlish, GooCanvas2 customizes the API generated by L<Glib::Object::Introspection> in a few spots:
=over
=item * The array ref normally returned by the following functions is flattened into a list:
=over
=item GooCanvas2::Canvas::get_items_at
=item GooCanvas2::Canvas::get_items_in_area
=item GooCanvas2::CanvasItem::get_items_at
=item GooCanvas2::CanvasItem::class_list_child_properties
=item GooCanvas2::CanvasItemModell::class_list_child_properties
=back
=back
=head1 SEE ALSO
=over
=item * GooCanvas Homepage at L<https://wiki.gnome.org/action/show/Projects/GooCanvas>
=item * GooCanvas2 API Reference L<https://developer.gnome.org/goocanvas/unstable/>
=item * L<Gtk3>
=item * L<Glib::Object::Introspection>
=back
=head1 AUTHOR
Maximilian Lika, E<lt>Maximilian-Lika@gmx.deE<gt>
=head1 COPYRIGHT AND LICENSE
Copyright (C) 2017 by Maximilian Lika
This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself, either Perl version 5.22.3 or,
at your option, any later version of Perl 5 you may have available.
=cut
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