kgsueme/kgsueme/gtk.pl

package gtk;

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

# I have not yte found a way to simply default style properties
Gtk2::Rc->parse_string(<<EOF);

   style "base" {
      GtkTreeView::vertical_separator = 0
   }
   widget_class "*" style "base"

EOF

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;

my $tagtable = new Gtk2::TextTagTable;

{
   my %tags = (
      default     => { foreground => "black" },
      node        => { foreground => "#0000b0", event => 1 },
      move        => { foreground => "#0000b0", event => 1 },
      user        => { foreground => "#0000b0", event => 1 },
      coord       => { foreground => "#0000b0", event => 1 },
      header      => { weight => 800, pixels_above_lines => 6 },
      description => { weight => 800, foreground => "blue" },
      infoblock   => { weight => 700, foreground => "blue" },
   );

   while (my ($k, $v) = each %tags) {
      my $tag = new Gtk2::TextTag $k;
      if (delete $v->{event}) {
         ###
      }
      $tag->set (%$v);
      $tagtable->add ($tag);
   }
}

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

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

   $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->{view}->set_cursor_visible (0);

   $self->{view}->set_editable (0);

   use PApp::Util; warn PApp::Util::dumpval ($self->{view}->get_events);
   $self->{view}->signal_connect (motion_notify_event => sub {
      my ($widget, $event) = @_;

      my $window = $widget->get_window ("text");
      if ($event->window == $window) {
         my ($win, $x, $y, $mask) = $window->get_pointer;
          #     warn "TAG EVENT @_ ($window, $win, $x, $y, $mask)\n";
          #gtk_text_view_window_to_buffer_coords (text_view,
          #                                       GTK_TEXT_WINDOW_TEXT,
          #                                       text_view->drag_start_x,
          #                                       text_view->drag_start_y,
          #                                       &buffer_x,
          #                                       &buffer_y);
#
#          gtk_text_layout_get_iter_at_pixel (text_view->layout,
#                                             &iter,
#                                             buffer_x, buffer_y);
#
#          gtk_text_view_start_selection_dnd (text_view, &iter, event);
#          return TRUE;
      }
      0;
   });

   $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;

   my @tag;
   $text = "<default>$text</default>";

   # pseudo-simplistic-xml-parser
   for (;;) {
      $text =~ /\G<([^>]+)>/gc or last;
      my $tag = $1;
      if ($tag =~ s/^\///) {
         pop @tag;
      } else {
         push @tag, $tag;
      }

      $text =~ /\G([^<]*)/gc or last;
      $self->{buffer}->insert_with_tags_by_name ($self->{buffer}->get_end_iter, util::xmlto $1, $tag[-1])
         if length $1;
   }

   $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:	1.24
Committed:	Thu Jun 12 21:03:04 2003 UTC (21 years ago) by pcg
Content type:	text/plain
Branch:	MAIN
Changes since 1.23:	+36 -3 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	1.24	# I have not yte found a way to simply default style properties
8			Gtk2::Rc->parse_string(<<EOF);
9
10			style "base" {
11			GtkTreeView::vertical_separator = 0
12			}
13			widget_class "*" style "base"
14
15			EOF
16
17	pcg	1.1	our $text_renderer = new Gtk2::CellRendererText;
18			our $int_renderer = new Gtk2::CellRendererText;
19			$int_renderer->set (xalign => 1);
20
21	pcg	1.5	our $state = $util::state->{gtk} \|\|= {};
22	pcg	1.1
23			# shows the properties of a glib object
24	pcg	1.3	sub info {
25	pcg	1.1	my ($idx, $obj) = @_;
26	pcg	1.5	return if $seen{$idx}++;
27	pcg	1.1	print "\n$idx\n";
28			for ($obj->list_properties) {
29			printf "%-16s %-24s %-24s %s\n", $_->{name}, $_->{type}, (join ":", @{$_->{flags}}), $_->{descr};
30			}
31			}
32
33			my %get = (
34			window_size => sub { [ ($_[0]->allocation->values)[2,3] ] },
35			#window_pos => sub { die KGS::Listener::Debug::dumpval [ $_[0]->get_root_origin ] },
36	pcg	1.5	column_size => sub { $_[0]->get("width") \|\| $_[0]->get("fixed_width") },
37	pcg	1.10	modelsortorder => sub { [ $_[0]->get_sort_column_id ] },
38	pcg	1.1	);
39
40			my %set = (
41	pcg	1.8	window_size => sub { $_[0]->set_default_size (@{$_[1]}) },
42			#window_pos => sub { $_[0]->set_uposition (@{$_[1]}) if @{$_[1]} },
43			column_size => sub { $_[0]->set (fixed_width => $_[1]) },
44	pcg	1.10	modelsortorder => sub { $_[0]->set_sort_column_id (@{$_[1]}) },
45	pcg	1.1	);
46
47	pcg	1.5	my %widget;
48
49	pcg	1.1	sub state {
50			my ($widget, $class, $instance, %attr) = @_;
51
52			while (my ($k, $v) = each %attr) {
53			my ($set, $get) = $k =~ /=/ ? split /=/, $k : ($k, $k);
54	pcg	1.9
55			$v = $state->{$class}{"*"}{$get}
56			if exists $state->{$class}{""} && exists $state->{$class}{""}{$get};
57
58			$v = $state->{$class}{$instance}{$get}
59			if defined $instance
60			&& exists $state->{$class}{$instance} && exists $state->{$class}{$instance}{$get};
61
62	pcg	1.1	$set{$get} ? $set{$get}->($widget, $v) : $widget->set($set => $v);
63	pcg	1.9
64			my $vx = KGS::Listener::Debug::dumpval $v; $vx =~ s/\s+/ /g; warn "set $class ($instance) $set => $vx\n";#d#
65	pcg	1.1	}
66
67	pcg	1.8	#$widget->signal_connect(destroy => sub { delete $widget{$widget}; 0 });
68	pcg	1.1
69	pcg	1.5	$widget{$widget} = [$widget, $class, $instance, \%attr];
70			Scalar::Util::weaken $widget{$widget}[0];
71	pcg	1.1	}
72
73			sub save_state {
74	pcg	1.5	for (grep $_, values %widget) {
75			my ($widget, $class, $instance, $attr) = @$_;
76
77	pcg	1.8	next unless $widget; # no destroy => widget may be undef
78
79	pcg	1.5	$widget->realize if $widget->can("realize");
80
81			while (my ($k, $v) = each %$attr) {
82			my ($set, $get) = $k =~ /=/ ? split /=/, $k : ($k, $k);
83			$v = $get{$get} ? $get{$get}->($widget) : $widget->get($get);
84
85			$state->{$class}{"*"}{$get} = $v;
86			$state->{$class}{$instance}{$get} = $v if defined $instance;
87	pcg	1.9
88			my $vx = KGS::Listener::Debug::dumpval $v; $vx =~ s/\s+/ /g; warn "get $class ($instance) $get => $vx\n";#d#
89	pcg	1.1	}
90			}
91	pcg	1.15	}
92
93			# string => Gtk2::Image
94			sub image_from_data {
95			my ($data) = @_;
96	pcg	1.18	my $img;
97	pcg	1.15
98	pcg	1.18	if (defined $data) {
99			# need to write to file first :/
100			my ($fh, $filename) = File::Temp::tempfile ();
101			syswrite $fh, $data;
102			close $fh;
103			$img = new_from_file Gtk2::Image $filename;
104			unlink $filename;
105			} else {
106			$img = new_from_file Gtk2::Image "$::IMGDIR/default_userpic.png";
107			}
108	pcg	1.15
109			$img;
110	pcg	1.1	}
111
112	pcg	1.2	package gtk::widget;
113
114			# hacked gtk pseudo-widget
115
116	pcg	1.3	sub new {
117			my $class = shift;
118			bless { @_ }, $class;
119			}
120
121	pcg	1.2	sub widget { $_[0]{widget} }
122
123			sub AUTOLOAD {
124	pcg	1.3	$AUTOLOAD =~ /::([^:]+)$/ or Carp::confess "$AUTOLOAD: no such method (illegal name)";
125	pcg	1.5	ref $_[0]{widget} or Carp::confess "AUTOLOAD: non-method call $AUTOLOAD(@_)\n";
126	pcg	1.3	my $method = $_[0]{widget}->can($1)
127			or Carp::confess "$AUTOLOAD: no such method";
128			# do NOT cache.. we are fats enough this way
129			unshift @_, shift->{widget};
130			&$method;
131			}
132
133	pcg	1.5	sub destroy {
134			my ($self) = @_;
135	pcg	1.14	warn "destroy($self)";#d#
136	pcg	1.12
137	pcg	1.5	for (keys %$self) {
138			(delete $self->{$_})->destroy
139	pcg	1.13	if UNIVERSAL::can ($self->{$_}, "destroy");
140			# if (UNIVERSAL::isa ($self->{$_}, Glib::Object)
141			# && UNIVERSAL::isa ($self->{$_}, gtk::widget))
142			# && $self->{$_}->can("destroy");
143	pcg	1.5	}
144			}
145
146			sub DESTROY {
147			my ($self) = @_;
148	pcg	1.14	warn "DESTROY($self)";#d#
149	pcg	1.5	}
150
151	pcg	1.3	package gtk::text;
152
153			use base gtk::widget;
154
155	pcg	1.19	my $tagtable = new Gtk2::TextTagTable;
156
157			{
158			my %tags = (
159	pcg	1.22	default => { foreground => "black" },
160	pcg	1.23	node => { foreground => "#0000b0", event => 1 },
161			move => { foreground => "#0000b0", event => 1 },
162			user => { foreground => "#0000b0", event => 1 },
163			coord => { foreground => "#0000b0", event => 1 },
164	pcg	1.22	header => { weight => 800, pixels_above_lines => 6 },
165	pcg	1.19	description => { weight => 800, foreground => "blue" },
166	pcg	1.22	infoblock => { weight => 700, foreground => "blue" },
167	pcg	1.19	);
168
169			while (my ($k, $v) = each %tags) {
170			my $tag = new Gtk2::TextTag $k;
171			if (delete $v->{event}) {
172	pcg	1.24	###
173	pcg	1.19	}
174			$tag->set (%$v);
175			$tagtable->add ($tag);
176			}
177			}
178
179	pcg	1.3	sub new {
180			my $class = shift;
181			my $self = $class->SUPER::new(@_);
182
183	pcg	1.19	$self->{buffer} = new Gtk2::TextBuffer $tagtable;
184	pcg	1.3
185	pcg	1.16	$self->{widget} = new Gtk2::ScrolledWindow;
186			$self->{widget}->set_policy("never", "always");
187	pcg	1.3
188	pcg	1.16	$self->{widget}->add ($self->{view} = new_with_buffer Gtk2::TextView $self->{buffer});
189			$self->{view}->set_wrap_mode ("word");
190	pcg	1.19	$self->{view}->set_cursor_visible (0);
191
192			$self->{view}->set_editable (0);
193	pcg	1.24
194			use PApp::Util; warn PApp::Util::dumpval ($self->{view}->get_events);
195			$self->{view}->signal_connect (motion_notify_event => sub {
196			my ($widget, $event) = @_;
197
198			my $window = $widget->get_window ("text");
199			if ($event->window == $window) {
200			my ($win, $x, $y, $mask) = $window->get_pointer;
201			# warn "TAG EVENT @_ ($window, $win, $x, $y, $mask)\n";
202			#gtk_text_view_window_to_buffer_coords (text_view,
203			# GTK_TEXT_WINDOW_TEXT,
204			# text_view->drag_start_x,
205			# text_view->drag_start_y,
206			# &buffer_x,
207			# &buffer_y);
208			#
209			# gtk_text_layout_get_iter_at_pixel (text_view->layout,
210			# &iter,
211			# buffer_x, buffer_y);
212			#
213			# gtk_text_view_start_selection_dnd (text_view, &iter, event);
214			# return TRUE;
215			}
216			0;
217			});
218	pcg	1.16
219			$self->set_end;
220	pcg	1.6
221	pcg	1.3	$self;
222			}
223
224	pcg	1.16	sub set_end {
225			my ($self) = @_;
226
227			# this is probably also a hack...
228			$self->{idle} \|\|= add Glib::Idle sub {
229			$self->{view}->scroll_to_iter ($self->{buffer}->get_end_iter, 0, 0, 0, 0)
230			if $self->{view};
231			delete $self->{idle};
232			};
233			}
234
235			sub at_end {
236			my ($self) = @_;
237
238	pcg	1.17	# this is, maybe, a bad hack :/
239	pcg	1.16	my $adj = $self->{widget}->get_vadjustment;
240			$adj->value + $adj->page_size >= $adj->upper - 0.5;
241			}
242
243	pcg	1.4	sub append_text {
244	pcg	1.5	my ($self, $text) = @_;
245
246	pcg	1.16	my $at_end = $self->at_end;
247
248	pcg	1.19	my @tag;
249			$text = "<default>$text</default>";
250
251			# pseudo-simplistic-xml-parser
252			for (;;) {
253			$text =~ /\G<([^>]+)>/gc or last;
254			my $tag = $1;
255			if ($tag =~ s/^\///) {
256			pop @tag;
257			} else {
258			push @tag, $tag;
259			}
260
261			$text =~ /\G([^<]*)/gc or last;
262			$self->{buffer}->insert_with_tags_by_name ($self->{buffer}->get_end_iter, util::xmlto $1, $tag[-1])
263			if length $1;
264			}
265	pcg	1.16
266			$self->set_end if $at_end;
267	pcg	1.4	}
268
269	pcg	1.3	sub set_text {
270			my ($self, $text) = @_;
271	pcg	1.4
272	pcg	1.16	my $at_end = $self->at_end;
273
274	pcg	1.5	$self->{buffer}->set_text ("");
275			$self->append_text ($text);
276	pcg	1.16
277			$self->set_end if $at_end;
278	pcg	1.1	}
279
280			1;
281