kgsueme/kgsueme/chat.pl

use utf8;

package chat;

# waaay cool widget. well... maybe at one point in the future

use Gtk2;

use Glib::Object::Subclass
   Gtk2::VBox,
   signals => {
      command => {
         flags       => [qw/run-first/],
         return_type => undef, # void return
         param_types => [Glib::Scalar, Glib::Scalar],
      },
   };

sub INIT_INSTANCE {
   my $self = shift;

   my $tagtable = new Gtk2::TextTagTable;

   {
      my @tags = (
         [default     => { foreground => "black" }],
         [node        => { foreground => "#0000b0", event => 1 }],
         [move        => { foreground => "#0000b0", event => 1 }],
         #[user        => { foreground => "#0000b0", wrap_mode => "none", event => 1 }],
         [user        => { foreground => "#0000b0", event => 1 }],
         [coord       => { foreground => "#0000b0", event => 1 }],
         [score       => { foreground => "#0000b0", event => 1 }],
         [error       => { foreground => "#ff0000", event => 1 }],
         [leader      => { weight => 800, pixels_above_lines => 6 }],
         [header      => { weight => 800, pixels_above_lines => 6 }],
         [undo        => { foreground => "#ffff00", background => "#ff0000", weight => 800, pixels_above_lines => 6 }],
         [challenge   => { weight => 800, pixels_above_lines => 6, background => "#ffffb0" }],
         [description => { weight => 800, foreground => "blue" }],
         [infoblock   => { weight => 700, foreground => "blue" }],
      );

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

   $self->{tagtable} = $tagtable;

   $self->signal_connect (destroy => sub {
      remove Glib::Source delete $self->{idle} if $self->{idle};
      %{$_[0]} = ();
   });

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

   $self->{widget} = new Gtk2::ScrolledWindow;
   $self->{widget}->set_policy ("automatic", "always");
   $self->pack_start ($self->{widget}, 1, 1, 0);

   $self->{widget}->add ($self->{view} = new_with_buffer Gtk2::TextView $self->{buffer});
   $self->{view}->set_wrap_mode ("word-char");
   $self->{view}->set_cursor_visible (0);

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

   $self->{view}->signal_connect (motion_notify_event => sub {
      my ($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;
   });

   $self->pack_start (($self->{entry} = new Gtk2::Entry), 0, 1, 0);

   $self->{entry}->signal_connect (activate => sub {
      my ($entry) = @_;
      my $text = $entry->get_text;
      $entry->set_text("");

      my ($cmd, $arg);

      if ($text =~ /^\/(\S+)\s*(.*)$/) {
         ($cmd, $arg) = ($1, $2);
      } else {
         ($cmd, $arg) = ("say", $text);
      }

      $self->signal_emit (command => $cmd, $arg);
   });

   #$self->{end} = $self->{buffer}->create_mark (undef, $self->{buffer}->get_end_iter, 0);#d##todo# use this one for gtk-1.050+
   $self->{end} = $self->{buffer}->create_mark (++$USELESSNAME, $self->{buffer}->get_end_iter, 0); # workaround for gtk-perl bug

   $self->set_end;
}

sub do_command {
   my ($self, $cmd, $arg, %arg) = @_;
}

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) = @_;

   $self->_append_text ($self->{end}, $text);
}

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

   my $at_end = $self->at_end;

   $text = "<default>$text</default>";

   my @tag;
   # 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_iter_at_mark ($mark), util::xmlto $1, @tag)
         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;
}

sub new_eventtag {
   my ($self, $cb) = @_;

   my $tag = new Gtk2::TextTag;
   $tag->signal_connect (event => $cb);
   $self->{tagtable}->add ($tag);

   $tag
}

# create a new "subbuffer"
sub new_inlay {
   my ($self) = @_;

   my $end = $self->{buffer}->get_end_iter;

   my $self = bless {
      buffer  => $self->{buffer},
      parent  => $self,
   }, superchat::inlay;

   # $USELESSNAME is a Gtk-perl < 1.042 workaround
   $self->{l} = $self->{buffer}->create_mark (++$USELESSNAME, $end, 1);
   $self->{buffer}->insert ($end, "\x{200d}");
   $self->{r} = $self->{buffer}->create_mark (++$USELESSNAME, $self->{buffer}->get_iter_at_mark ($self->{l}), 0);

   Scalar::Util::weaken $self->{buffer};
   Scalar::Util::weaken $self->{parent};
   $self;
}

sub new_switchable_inlay {
   my ($self, $header, $cb, $visible) = @_;

   my $inlay;

   my $tag = $self->new_eventtag (sub {
      my ($tag, $view, $event, $iter) = @_;

      if ($event->type eq "button-press") {
         $inlay->set_visible (!$inlay->{visible});
         return 1;
      }

      0;
   });

   $tag->set (background => "#e0e0ff");

   $inlay = $self->new_inlay;

   $inlay->{visible} = $visible;
   $inlay->{header}  = $header;
   $inlay->{tag}     = $tag;
   $inlay->{cb}      = $cb;

   Scalar::Util::weaken $inlay->{tag};

   $inlay->refresh;

   $inlay;
}

package superchat::inlay;

sub liter { $_[0]{buffer}->get_iter_at_mark ($_[0]{l}) }
sub riter { $_[0]{buffer}->get_iter_at_mark ($_[0]{r}) }

sub clear {
   my ($self) = @_;
   $self->{buffer}->delete ($self->liter, $self->riter);
}

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

   $self->{parent}->_append_text ($self->{r}, $text);
}

sub append_widget {
   my ($self, $widget) = @_;

   $widget->show_all;

   my $anchor = $self->{buffer}->create_child_anchor ($self->riter);
   $self->{parent}{view}->add_child_at_anchor ($widget, $anchor);

   $widget;
}

sub append_optionmenu {
   my ($self, $ref, @entry) = @_;

   $self->append_widget (gtk::optionmenu $ref, @entry);
}

sub append_button {
   my ($self, $label, $cb) = @_;

   $self->append_widget (gtk::button $label, $cb);
}

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

sub set_visible {
   my ($self, $visible) = @_;

   return if $self->{visible} == $visible;
   $self->{visible} = $visible;

   $self->refresh;
}

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

   $self->clear;

   my $arrow = $self->{visible} ? "⊟" : "⊞";

   $self->{buffer}->insert ($self->riter, "\n");
   $self->{buffer}->insert_with_tags ($self->riter, util::xmlto "$arrow $self->{header}", $self->{tag});

   return unless $self->{visible};

   $self->{cb}->($self);
}

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

   return if !$self->{l} || !$self->{buffer} || $self->{l}->get_deleted;

   $self->clear if $self->{buffer};

   delete $self->{parent};
   delete $self->{buffer};
   delete $self->{l};
   delete $self->{r};
}

sub DESTROY {
   my $self = shift;

   $self->{parent}{tagtable}->remove (delete $self->{tag}) if $self->{tag} && $self->{parent};
   #&destroy;
}

1;

Revision:	1.11
Committed:	Wed Jun 2 14:13:56 2004 UTC (20 years ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.10:	+3 -2 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	root	1.4	use utf8;
2
3	pcg	1.1	package chat;
4
5	root	1.4	# waaay cool widget. well... maybe at one point in the future
6
7	pcg	1.1	use Gtk2;
8
9			use Glib::Object::Subclass
10			Gtk2::VBox,
11			signals => {
12			command => {
13			flags => [qw/run-first/],
14			return_type => undef, # void return
15			param_types => [Glib::Scalar, Glib::Scalar],
16			},
17			};
18
19	root	1.4	sub INIT_INSTANCE {
20			my $self = shift;
21	pcg	1.1
22	root	1.4	my $tagtable = new Gtk2::TextTagTable;
23
24			{
25			my @tags = (
26			[default => { foreground => "black" }],
27			[node => { foreground => "#0000b0", event => 1 }],
28			[move => { foreground => "#0000b0", event => 1 }],
29	root	1.11	#[user => { foreground => "#0000b0", wrap_mode => "none", event => 1 }],
30			[user => { foreground => "#0000b0", event => 1 }],
31	root	1.4	[coord => { foreground => "#0000b0", event => 1 }],
32			[score => { foreground => "#0000b0", event => 1 }],
33			[error => { foreground => "#ff0000", event => 1 }],
34	root	1.9	[leader => { weight => 800, pixels_above_lines => 6 }],
35	root	1.4	[header => { weight => 800, pixels_above_lines => 6 }],
36			[undo => { foreground => "#ffff00", background => "#ff0000", weight => 800, pixels_above_lines => 6 }],
37			[challenge => { weight => 800, pixels_above_lines => 6, background => "#ffffb0" }],
38			[description => { weight => 800, foreground => "blue" }],
39			[infoblock => { weight => 700, foreground => "blue" }],
40			);
41
42			for (@tags) {
43			my ($k, $v) = @$_;
44			my $tag = new Gtk2::TextTag $k;
45			if (delete $v->{event}) {
46			###
47			}
48			$tag->set (%$v);
49			$tagtable->add ($tag);
50	pcg	1.1	}
51			}
52
53	root	1.4	$self->{tagtable} = $tagtable;
54	pcg	1.1
55	pcg	1.3	$self->signal_connect (destroy => sub {
56			remove Glib::Source delete $self->{idle} if $self->{idle};
57			%{$_[0]} = ();
58			});
59
60	root	1.4	$self->{buffer} = new Gtk2::TextBuffer $self->{tagtable};
61	pcg	1.1
62			$self->{widget} = new Gtk2::ScrolledWindow;
63	root	1.11	$self->{widget}->set_policy ("automatic", "always");
64	pcg	1.1	$self->pack_start ($self->{widget}, 1, 1, 0);
65
66			$self->{widget}->add ($self->{view} = new_with_buffer Gtk2::TextView $self->{buffer});
67	root	1.8	$self->{view}->set_wrap_mode ("word-char");
68	pcg	1.1	$self->{view}->set_cursor_visible (0);
69
70			$self->{view}->set_editable (0);
71
72			$self->{view}->signal_connect (motion_notify_event => sub {
73			my ($widget, $event) = @_;
74
75			my $window = $widget->get_window ("text");
76			if ($event->window == $window) {
77			my ($win, $x, $y, $mask) = $window->get_pointer;
78			# warn "TAG EVENT @_ ($window, $win, $x, $y, $mask)\n";
79			#gtk_text_view_window_to_buffer_coords (text_view,
80			# GTK_TEXT_WINDOW_TEXT,
81			# text_view->drag_start_x,
82			# text_view->drag_start_y,
83			# &buffer_x,
84			# &buffer_y);
85			#
86			# gtk_text_layout_get_iter_at_pixel (text_view->layout,
87			# &iter,
88			# buffer_x, buffer_y);
89			#
90			# gtk_text_view_start_selection_dnd (text_view, &iter, event);
91			# return TRUE;
92			}
93			0;
94			});
95
96			$self->pack_start (($self->{entry} = new Gtk2::Entry), 0, 1, 0);
97
98	root	1.4	$self->{entry}->signal_connect (activate => sub {
99	pcg	1.1	my ($entry) = @_;
100			my $text = $entry->get_text;
101			$entry->set_text("");
102
103			my ($cmd, $arg);
104
105			if ($text =~ /^\/(\S+)\s(.)$/) {
106			($cmd, $arg) = ($1, $2);
107			} else {
108	pcg	1.2	($cmd, $arg) = ("say", $text);
109	pcg	1.1	}
110
111			$self->signal_emit (command => $cmd, $arg);
112			});
113
114	root	1.4	#$self->{end} = $self->{buffer}->create_mark (undef, $self->{buffer}->get_end_iter, 0);#d##todo# use this one for gtk-1.050+
115			$self->{end} = $self->{buffer}->create_mark (++$USELESSNAME, $self->{buffer}->get_end_iter, 0); # workaround for gtk-perl bug
116	pcg	1.1
117			$self->set_end;
118			}
119
120			sub do_command {
121			my ($self, $cmd, $arg, %arg) = @_;
122			}
123
124			sub set_end {
125			my ($self) = @_;
126
127			# this is probably also a hack...
128			$self->{idle} \|\|= add Glib::Idle sub {
129			$self->{view}->scroll_to_iter ($self->{buffer}->get_end_iter, 0, 0, 0, 0)
130			if $self->{view};
131			delete $self->{idle};
132			};
133			}
134
135			sub at_end {
136			my ($self) = @_;
137
138			# this is, maybe, a bad hack :/
139			my $adj = $self->{widget}->get_vadjustment;
140			$adj->value + $adj->page_size >= $adj->upper - 0.5;
141			}
142
143			sub append_text {
144			my ($self, $text) = @_;
145
146	root	1.4	$self->_append_text ($self->{end}, $text);
147			}
148
149			sub _append_text {
150			my ($self, $mark, $text) = @_;
151
152	pcg	1.1	my $at_end = $self->at_end;
153
154			$text = "<default>$text</default>";
155
156	root	1.4	my @tag;
157	pcg	1.1	# pseudo-simplistic-xml-parser
158			for (;;) {
159			$text =~ /\G<([^>]+)>/gc or last;
160			my $tag = $1;
161			if ($tag =~ s/^\///) {
162			pop @tag;
163			} else {
164			push @tag, $tag;
165			}
166
167			$text =~ /\G([^<]*)/gc or last;
168	root	1.4	$self->{buffer}->insert_with_tags_by_name ($self->{buffer}->get_iter_at_mark ($mark), util::xmlto $1, @tag)
169	pcg	1.1	if length $1;
170			}
171
172			$self->set_end if $at_end;
173			}
174
175			sub set_text {
176			my ($self, $text) = @_;
177
178			my $at_end = $self->at_end;
179
180			$self->{buffer}->set_text ("");
181			$self->append_text ($text);
182
183			$self->set_end if $at_end;
184	root	1.4	}
185
186			sub new_eventtag {
187			my ($self, $cb) = @_;
188
189			my $tag = new Gtk2::TextTag;
190			$tag->signal_connect (event => $cb);
191			$self->{tagtable}->add ($tag);
192
193			$tag
194			}
195
196			# create a new "subbuffer"
197			sub new_inlay {
198			my ($self) = @_;
199
200			my $end = $self->{buffer}->get_end_iter;
201
202			my $self = bless {
203			buffer => $self->{buffer},
204			parent => $self,
205			}, superchat::inlay;
206
207			# $USELESSNAME is a Gtk-perl < 1.042 workaround
208			$self->{l} = $self->{buffer}->create_mark (++$USELESSNAME, $end, 1);
209			$self->{buffer}->insert ($end, "\x{200d}");
210			$self->{r} = $self->{buffer}->create_mark (++$USELESSNAME, $self->{buffer}->get_iter_at_mark ($self->{l}), 0);
211
212			Scalar::Util::weaken $self->{buffer};
213			Scalar::Util::weaken $self->{parent};
214			$self;
215			}
216
217			sub new_switchable_inlay {
218			my ($self, $header, $cb, $visible) = @_;
219
220			my $inlay;
221
222			my $tag = $self->new_eventtag (sub {
223			my ($tag, $view, $event, $iter) = @_;
224
225			if ($event->type eq "button-press") {
226			$inlay->set_visible (!$inlay->{visible});
227			return 1;
228			}
229
230			0;
231			});
232
233			$tag->set (background => "#e0e0ff");
234
235			$inlay = $self->new_inlay;
236
237			$inlay->{visible} = $visible;
238			$inlay->{header} = $header;
239			$inlay->{tag} = $tag;
240			$inlay->{cb} = $cb;
241
242			Scalar::Util::weaken $inlay->{tag};
243
244			$inlay->refresh;
245
246			$inlay;
247			}
248
249			package superchat::inlay;
250
251			sub liter { $_[0]{buffer}->get_iter_at_mark ($_[0]{l}) }
252			sub riter { $_[0]{buffer}->get_iter_at_mark ($_[0]{r}) }
253
254			sub clear {
255			my ($self) = @_;
256			$self->{buffer}->delete ($self->liter, $self->riter);
257			}
258
259			sub append_text {
260			my ($self, $text) = @_;
261
262			$self->{parent}->_append_text ($self->{r}, $text);
263			}
264
265			sub append_widget {
266			my ($self, $widget) = @_;
267
268			$widget->show_all;
269
270			my $anchor = $self->{buffer}->create_child_anchor ($self->riter);
271			$self->{parent}{view}->add_child_at_anchor ($widget, $anchor);
272	root	1.10
273			$widget;
274	root	1.4	}
275
276			sub append_optionmenu {
277			my ($self, $ref, @entry) = @_;
278
279	root	1.10	$self->append_widget (gtk::optionmenu $ref, @entry);
280	root	1.4	}
281
282			sub append_button {
283			my ($self, $label, $cb) = @_;
284
285	root	1.10	$self->append_widget (gtk::button $label, $cb);
286	root	1.4	}
287
288			sub visible { $_[0]{visible} }
289
290			sub set_visible {
291			my ($self, $visible) = @_;
292
293			return if $self->{visible} == $visible;
294			$self->{visible} = $visible;
295
296			$self->refresh;
297			}
298
299			sub refresh {
300			my ($self) = @_;
301
302			$self->clear;
303
304			my $arrow = $self->{visible} ? "⊟" : "⊞";
305
306			$self->{buffer}->insert ($self->riter, "\n");
307			$self->{buffer}->insert_with_tags ($self->riter, util::xmlto "$arrow $self->{header}", $self->{tag});
308
309			return unless $self->{visible};
310
311			$self->{cb}->($self);
312			}
313
314			sub destroy {
315			my ($self) = @_;
316
317			return if !$self->{l} \|\| !$self->{buffer} \|\| $self->{l}->get_deleted;
318
319			$self->clear if $self->{buffer};
320
321			delete $self->{parent};
322			delete $self->{buffer};
323			delete $self->{l};
324			delete $self->{r};
325			}
326
327			sub DESTROY {
328			my $self = shift;
329
330			$self->{parent}{tagtable}->remove (delete $self->{tag}) if $self->{tag} && $self->{parent};
331			#&destroy;
332	pcg	1.1	}
333
334			1;
335