kgsueme/kgsueme/gtk.pl

package gtk;

use Carp;
use File::Temp;
use Gtk2;

our $text_renderer = new Gtk2::CellRendererText;
our $int_renderer  = new Gtk2::CellRendererText;
$int_renderer->set (xalign => 1);

our $state = $util::state->{gtk} ||= {};

# shows the properties of a glib object
sub info {
   my ($idx, $obj) = @_;
   return if $seen{$idx}++;
   print "\n$idx\n";
   for ($obj->list_properties) {
      printf "%-16s %-24s %-24s %s\n", $_->{name}, $_->{type}, (join ":", @{$_->{flags}}), $_->{descr};
   }
}

my %get = (
   window_size     => sub { [ ($_[0]->allocation->values)[2,3] ] },
   #window_pos     => sub { die KGS::Listener::Debug::dumpval [ $_[0]->get_root_origin ] },
   column_size     => sub { $_[0]->get("width") || $_[0]->get("fixed_width") },
   modelsortorder  => sub { [ $_[0]->get_sort_column_id ] },
);

my %set = (
   window_size     => sub { $_[0]->set_default_size (@{$_[1]}) },
   #window_pos     => sub { $_[0]->set_uposition (@{$_[1]}) if @{$_[1]} },
   column_size     => sub { $_[0]->set (fixed_width => $_[1]) },
   modelsortorder  => sub { $_[0]->set_sort_column_id (@{$_[1]}) },
);

my %widget;

sub state {
   my ($widget, $class, $instance, %attr) = @_;

   while (my ($k, $v) = each %attr) {
      my ($set, $get) = $k =~ /=/ ? split /=/, $k : ($k, $k);

      $v = $state->{$class}{"*"}{$get}
         if exists $state->{$class}{"*"} && exists $state->{$class}{"*"}{$get};

      $v = $state->{$class}{$instance}{$get}
         if defined $instance
         && exists $state->{$class}{$instance} && exists $state->{$class}{$instance}{$get};

      $set{$get} ? $set{$get}->($widget, $v) : $widget->set($set => $v);

      my $vx = KGS::Listener::Debug::dumpval $v; $vx =~ s/\s+/ /g; warn "set $class ($instance) $set => $vx\n";#d#
   }

   #$widget->signal_connect(destroy => sub { delete $widget{$widget}; 0 });

   $widget{$widget} = [$widget, $class, $instance, \%attr];
   Scalar::Util::weaken $widget{$widget}[0];
}

sub save_state {
   for (grep $_, values %widget) {
      my ($widget, $class, $instance, $attr) = @$_;

      next unless $widget; # no destroy => widget may be undef

      $widget->realize if $widget->can("realize");

      while (my ($k, $v) = each %$attr) {
         my ($set, $get) = $k =~ /=/ ? split /=/, $k : ($k, $k);
         $v = $get{$get} ? $get{$get}->($widget) : $widget->get($get);

         $state->{$class}{"*"}{$get}       = $v;
         $state->{$class}{$instance}{$get} = $v if defined $instance;

         my $vx = KGS::Listener::Debug::dumpval $v; $vx =~ s/\s+/ /g; warn "get $class ($instance) $get => $vx\n";#d#
      }
   }
}

# string => Gtk2::Image
sub image_from_data {
   my ($data) = @_;
   my $img;
   
   if (defined $data) {
      # need to write to file first :/
      my ($fh, $filename) = File::Temp::tempfile ();
      syswrite $fh, $data;
      close $fh;
      $img = new_from_file Gtk2::Image $filename;
      unlink $filename;
   } else {
      $img = new_from_file Gtk2::Image "$::IMGDIR/default_userpic.png";
   }

   $img;
}

package gtk::widget;

# hacked gtk pseudo-widget

sub new {
   my $class = shift;
   bless { @_ }, $class;
}

sub widget { $_[0]{widget} }

sub AUTOLOAD {
   $AUTOLOAD =~ /::([^:]+)$/ or Carp::confess "$AUTOLOAD: no such method (illegal name)";
   ref $_[0]{widget} or Carp::confess "AUTOLOAD: non-method call $AUTOLOAD(@_)\n";
   my $method = $_[0]{widget}->can($1)
      or Carp::confess "$AUTOLOAD: no such method";
   # do NOT cache.. we are fats enough this way
   unshift @_, shift->{widget};
   &$method;
}

sub destroy {
   my ($self) = @_;
   warn "destroy($self)";#d#

   for (keys %$self) {
      (delete $self->{$_})->destroy
         if UNIVERSAL::can ($self->{$_}, "destroy");
#         if (UNIVERSAL::isa ($self->{$_}, Glib::Object)
#             && UNIVERSAL::isa ($self->{$_}, gtk::widget))
#            && $self->{$_}->can("destroy");
   }
}

sub DESTROY {
   my ($self) = @_;
   warn "DESTROY($self)";#d#
}

package gtk::text;

use base gtk::widget;

sub new {
   my $class = shift;
   my $self = $class->SUPER::new(@_);

   $self->{buffer} = new Gtk2::TextBuffer undef;

   $self->{widget} = new Gtk2::ScrolledWindow;
   $self->{widget}->set_policy("never", "always");

   $self->{widget}->add ($self->{view} = new_with_buffer Gtk2::TextView $self->{buffer});
   $self->{view}->set_wrap_mode ("word");

   $self->set_end;

   $self;
}

sub set_end {
   my ($self) = @_;

   # this is probably also a hack...
   $self->{idle} ||= add Glib::Idle sub {
      $self->{view}->scroll_to_iter ($self->{buffer}->get_end_iter, 0, 0, 0, 0)
         if $self->{view};
      delete $self->{idle};
   };
}

sub at_end {
   my ($self) = @_;

   # this is, maybe, a bad hack :/
   my $adj = $self->{widget}->get_vadjustment;
   $adj->value + $adj->page_size >= $adj->upper - 0.5;
}

sub append_text {
   my ($self, $text) = @_;

   my $at_end = $self->at_end;

   $self->{buffer}->insert ($self->{buffer}->get_end_iter, $text);

   $self->set_end if $at_end;
}

sub set_text {
   my ($self, $text) = @_;

   my $at_end = $self->at_end;
           
   $self->{buffer}->set_text ("");
   $self->append_text ($text);

   $self->set_end if $at_end;
}

1;

Revision:	1.18
Committed:	Mon Jun 2 14:05:10 2003 UTC (21 years ago) by pcg
Content type:	text/plain
Branch:	MAIN
Changes since 1.17:	+11 -8 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	pcg	1.1	package gtk;
2
3	pcg	1.3	use Carp;
4	pcg	1.15	use File::Temp;
5			use Gtk2;
6	pcg	1.3
7	pcg	1.1	our $text_renderer = new Gtk2::CellRendererText;
8			our $int_renderer = new Gtk2::CellRendererText;
9			$int_renderer->set (xalign => 1);
10
11	pcg	1.5	our $state = $util::state->{gtk} \|\|= {};
12	pcg	1.1
13			# shows the properties of a glib object
14	pcg	1.3	sub info {
15	pcg	1.1	my ($idx, $obj) = @_;
16	pcg	1.5	return if $seen{$idx}++;
17	pcg	1.1	print "\n$idx\n";
18			for ($obj->list_properties) {
19			printf "%-16s %-24s %-24s %s\n", $_->{name}, $_->{type}, (join ":", @{$_->{flags}}), $_->{descr};
20			}
21			}
22
23			my %get = (
24			window_size => sub { [ ($_[0]->allocation->values)[2,3] ] },
25			#window_pos => sub { die KGS::Listener::Debug::dumpval [ $_[0]->get_root_origin ] },
26	pcg	1.5	column_size => sub { $_[0]->get("width") \|\| $_[0]->get("fixed_width") },
27	pcg	1.10	modelsortorder => sub { [ $_[0]->get_sort_column_id ] },
28	pcg	1.1	);
29
30			my %set = (
31	pcg	1.8	window_size => sub { $_[0]->set_default_size (@{$_[1]}) },
32			#window_pos => sub { $_[0]->set_uposition (@{$_[1]}) if @{$_[1]} },
33			column_size => sub { $_[0]->set (fixed_width => $_[1]) },
34	pcg	1.10	modelsortorder => sub { $_[0]->set_sort_column_id (@{$_[1]}) },
35	pcg	1.1	);
36
37	pcg	1.5	my %widget;
38
39	pcg	1.1	sub state {
40			my ($widget, $class, $instance, %attr) = @_;
41
42			while (my ($k, $v) = each %attr) {
43			my ($set, $get) = $k =~ /=/ ? split /=/, $k : ($k, $k);
44	pcg	1.9
45			$v = $state->{$class}{"*"}{$get}
46			if exists $state->{$class}{""} && exists $state->{$class}{""}{$get};
47
48			$v = $state->{$class}{$instance}{$get}
49			if defined $instance
50			&& exists $state->{$class}{$instance} && exists $state->{$class}{$instance}{$get};
51
52	pcg	1.1	$set{$get} ? $set{$get}->($widget, $v) : $widget->set($set => $v);
53	pcg	1.9
54			my $vx = KGS::Listener::Debug::dumpval $v; $vx =~ s/\s+/ /g; warn "set $class ($instance) $set => $vx\n";#d#
55	pcg	1.1	}
56
57	pcg	1.8	#$widget->signal_connect(destroy => sub { delete $widget{$widget}; 0 });
58	pcg	1.1
59	pcg	1.5	$widget{$widget} = [$widget, $class, $instance, \%attr];
60			Scalar::Util::weaken $widget{$widget}[0];
61	pcg	1.1	}
62
63			sub save_state {
64	pcg	1.5	for (grep $_, values %widget) {
65			my ($widget, $class, $instance, $attr) = @$_;
66
67	pcg	1.8	next unless $widget; # no destroy => widget may be undef
68
69	pcg	1.5	$widget->realize if $widget->can("realize");
70
71			while (my ($k, $v) = each %$attr) {
72			my ($set, $get) = $k =~ /=/ ? split /=/, $k : ($k, $k);
73			$v = $get{$get} ? $get{$get}->($widget) : $widget->get($get);
74
75			$state->{$class}{"*"}{$get} = $v;
76			$state->{$class}{$instance}{$get} = $v if defined $instance;
77	pcg	1.9
78			my $vx = KGS::Listener::Debug::dumpval $v; $vx =~ s/\s+/ /g; warn "get $class ($instance) $get => $vx\n";#d#
79	pcg	1.1	}
80			}
81	pcg	1.15	}
82
83			# string => Gtk2::Image
84			sub image_from_data {
85			my ($data) = @_;
86	pcg	1.18	my $img;
87	pcg	1.15
88	pcg	1.18	if (defined $data) {
89			# need to write to file first :/
90			my ($fh, $filename) = File::Temp::tempfile ();
91			syswrite $fh, $data;
92			close $fh;
93			$img = new_from_file Gtk2::Image $filename;
94			unlink $filename;
95			} else {
96			$img = new_from_file Gtk2::Image "$::IMGDIR/default_userpic.png";
97			}
98	pcg	1.15
99			$img;
100	pcg	1.1	}
101
102	pcg	1.2	package gtk::widget;
103
104			# hacked gtk pseudo-widget
105
106	pcg	1.3	sub new {
107			my $class = shift;
108			bless { @_ }, $class;
109			}
110
111	pcg	1.2	sub widget { $_[0]{widget} }
112
113			sub AUTOLOAD {
114	pcg	1.3	$AUTOLOAD =~ /::([^:]+)$/ or Carp::confess "$AUTOLOAD: no such method (illegal name)";
115	pcg	1.5	ref $_[0]{widget} or Carp::confess "AUTOLOAD: non-method call $AUTOLOAD(@_)\n";
116	pcg	1.3	my $method = $_[0]{widget}->can($1)
117			or Carp::confess "$AUTOLOAD: no such method";
118			# do NOT cache.. we are fats enough this way
119			unshift @_, shift->{widget};
120			&$method;
121			}
122
123	pcg	1.5	sub destroy {
124			my ($self) = @_;
125	pcg	1.14	warn "destroy($self)";#d#
126	pcg	1.12
127	pcg	1.5	for (keys %$self) {
128			(delete $self->{$_})->destroy
129	pcg	1.13	if UNIVERSAL::can ($self->{$_}, "destroy");
130			# if (UNIVERSAL::isa ($self->{$_}, Glib::Object)
131			# && UNIVERSAL::isa ($self->{$_}, gtk::widget))
132			# && $self->{$_}->can("destroy");
133	pcg	1.5	}
134			}
135
136			sub DESTROY {
137			my ($self) = @_;
138	pcg	1.14	warn "DESTROY($self)";#d#
139	pcg	1.5	}
140
141	pcg	1.3	package gtk::text;
142
143			use base gtk::widget;
144
145			sub new {
146			my $class = shift;
147			my $self = $class->SUPER::new(@_);
148
149			$self->{buffer} = new Gtk2::TextBuffer undef;
150
151	pcg	1.16	$self->{widget} = new Gtk2::ScrolledWindow;
152			$self->{widget}->set_policy("never", "always");
153	pcg	1.3
154	pcg	1.16	$self->{widget}->add ($self->{view} = new_with_buffer Gtk2::TextView $self->{buffer});
155			$self->{view}->set_wrap_mode ("word");
156
157			$self->set_end;
158	pcg	1.6
159	pcg	1.3	$self;
160			}
161
162	pcg	1.16	sub set_end {
163			my ($self) = @_;
164
165			# this is probably also a hack...
166			$self->{idle} \|\|= add Glib::Idle sub {
167			$self->{view}->scroll_to_iter ($self->{buffer}->get_end_iter, 0, 0, 0, 0)
168			if $self->{view};
169			delete $self->{idle};
170			};
171			}
172
173			sub at_end {
174			my ($self) = @_;
175
176	pcg	1.17	# this is, maybe, a bad hack :/
177	pcg	1.16	my $adj = $self->{widget}->get_vadjustment;
178			$adj->value + $adj->page_size >= $adj->upper - 0.5;
179			}
180
181	pcg	1.4	sub append_text {
182	pcg	1.5	my ($self, $text) = @_;
183
184	pcg	1.16	my $at_end = $self->at_end;
185
186	pcg	1.5	$self->{buffer}->insert ($self->{buffer}->get_end_iter, $text);
187	pcg	1.16
188			$self->set_end if $at_end;
189	pcg	1.4	}
190
191	pcg	1.3	sub set_text {
192			my ($self, $text) = @_;
193	pcg	1.4
194	pcg	1.16	my $at_end = $self->at_end;
195
196	pcg	1.5	$self->{buffer}->set_text ("");
197			$self->append_text ($text);
198	pcg	1.16
199			$self->set_end if $at_end;
200	pcg	1.1	}
201
202			1;
203