| 1 |
package GCE::DragHelper; |
| 2 |
|
| 3 |
=head1 NAME |
| 4 |
|
| 5 |
GCE::MapEditor - the map editing widget |
| 6 |
|
| 7 |
=cut |
| 8 |
|
| 9 |
use Gtk2; |
| 10 |
use Gtk2::Gdk::Keysyms; |
| 11 |
use Gtk2::SimpleMenu; |
| 12 |
|
| 13 |
use Crossfire; |
| 14 |
use Crossfire::Map; |
| 15 |
use Crossfire::MapWidget; |
| 16 |
|
| 17 |
use GCE::AttrEdit; |
| 18 |
use GCE::Util; |
| 19 |
|
| 20 |
use strict; |
| 21 |
|
| 22 |
our $DRAGDATA = {}; |
| 23 |
|
| 24 |
sub set_drag_source { |
| 25 |
my ($widget, $key, $value_cb) = @_; |
| 26 |
|
| 27 |
$widget->drag_source_set (['button1_mask'], ['move'], |
| 28 |
{ target => 'STRING', flags => [], info => 'TARGET_STRING' } |
| 29 |
); |
| 30 |
$widget->signal_connect (drag_data_get => sub { |
| 31 |
my ($widget, $context, $data, $info, $time) = @_; |
| 32 |
$data->set ($data->target, 8, $key); |
| 33 |
$DRAGDATA->{$key} = $value_cb->(); |
| 34 |
}); |
| 35 |
} |
| 36 |
|
| 37 |
sub set_drag_sink { |
| 38 |
my ($widget, $key, $get_cb) = @_; |
| 39 |
|
| 40 |
$widget->drag_dest_set (all => ['move'], |
| 41 |
{ target => 'STRING', flags => [], info => 'TARGET_STRING' } |
| 42 |
); |
| 43 |
# XXX: I'm unsure here, do i have to issue a get request? |
| 44 |
# And what if i get the data twice? Wait for transaction end? |
| 45 |
$widget->signal_connect (drag_data_received => sub { |
| 46 |
my ($widget, $context, $wx, $wy, $data, $info, $time) = @_; |
| 47 |
|
| 48 |
if (($data->length >= 0) && ($data->format == 8)) { |
| 49 |
|
| 50 |
$context->finish (1, 0, $time); |
| 51 |
|
| 52 |
if ($data->data eq $key) { |
| 53 |
my $v = $DRAGDATA->{$data->data}; |
| 54 |
$get_cb->($v); |
| 55 |
} |
| 56 |
|
| 57 |
return; |
| 58 |
} |
| 59 |
$context->finish (0, 0, $time); |
| 60 |
}); |
| 61 |
|
| 62 |
} |
| 63 |
|
| 64 |
=head1 AUTHOR |
| 65 |
|
| 66 |
Marc Lehmann <schmorp@schmorp.de> |
| 67 |
http://home.schmorp.de/ |
| 68 |
|
| 69 |
Robin Redeker <elmex@ta-sa.org> |
| 70 |
http://www.ta-sa.org/ |
| 71 |
|
| 72 |
=cut |
| 73 |
1; |
