AA/UI.pm

   1 package AA::UI;
   2
   3 use strict;
   4 use warnings;
   5
   6 sub new($$) {
   7         my ($class, $name) = @_;
   8         if ($name eq "") {
   9                 return AA::UI::GTK->new(1);
  10         } elsif ($name eq "gtk") {
  11                 return AA::UI::GTK->new(0);
  12         } elsif ($name =~ /\.pdf$/) {
  13                 return AA::UI::PDF->new($name);
  14         } elsif ($name =~ /\.png$/) {
  15                 return AA::UI::PNG->new($name);
  16         }
  17 }
  18
  19 package AA::UI::GTK;
  20
  21 my $debug = 1;
  22
  23 our @ISA = ('AA::UI');
  24
  25 sub new($$) {
  26         my ($class, $mode) = @_;
  27         my $ui = {
  28                 MODE => $mode,
  29         };
  30         return bless($ui, $class);
  31 }
  32
  33 my $u_scenario;
  34 my $u_scene;
  35 my $u_frame;
  36 my $u_direction;
  37 my @u_scenes = ();
  38
  39 my $window;
  40 my $cairo;
  41 my $area;
  42 my $pixmap;
  43 my $timer;
  44 my $stopped = 0;
  45 my $fullscreen = 0;
  46 my $movie = 0;
  47 my ($lastw, $lasth, $lastd) = (-1, -1, -1);
  48 my ($pixw, $pixh) = (-1, -1);
  49 my ($last_scene, $last_frame) = (-1, -1);
  50
  51 sub draw($) {
  52         my ($force) = @_;
  53         my $win = $area->window;
  54         my $wgc = Gtk2::Gdk::GC->new($win);
  55         my $alloc = $area->allocation;
  56         my $w = $alloc->width;
  57         my $h = $alloc->height;
  58         my $d = $win->get_depth;
  59         # print "Area $w x $h x $d, xx=$xx\n";
  60
  61         if (!defined($pixmap) || $lastw != $w || $lasth != $h || $lastd != $d) {
  62                 ($lastw, $lasth, $lastd) = ($w, $h, $d);
  63                 if ($w/$h >= 4/3) {
  64                         $pixh = $h;
  65                         $pixw = int($h/3*4);
  66                 } else {
  67                         $pixw = $w;
  68                         $pixh = int($w/4*3);
  69                 }
  70                 print "Resized to ${w}x${h}, pixmap size ${pixw}x${pixh}\n" if $debug;
  71
  72                 $pixmap = Gtk2::Gdk::Pixmap->new($win, $pixw, $pixh, $d);
  73                 $cairo = Gtk2::Gdk::Cairo::Context->create($pixmap);
  74                 $cairo->select_font_face('URW Palladio L', 'normal', 'normal');
  75                 my $scale = $pixw/1024;
  76                 $cairo->scale($scale, $scale);
  77         }
  78
  79         if ($force) {
  80                 $wgc->set_rgb_background(0);
  81                 $wgc->set_rgb_foreground(0);
  82                 $win->draw_rectangle($wgc, 1, 0, 0, $w, $h);
  83         }
  84
  85         $cairo->rectangle(0, 0, 1024, 768);
  86         $cairo->set_source_rgb(0, 0, 0);
  87         $cairo->fill;
  88
  89         if (@u_scenes) {
  90                 print "@@@ Scene $u_scene frame $u_frame\n" if $debug;
  91                 $u_scenes[$u_scene]->[$u_frame]->Draw($cairo);
  92                 $cairo->set_source_rgb(.5, .5, .5);
  93                 $cairo->set_font_size(15);
  94                 $cairo->move_to(950,750);
  95                 $cairo->show_text($u_scene . "/" . $#u_scenes);
  96         } else {
  97                 AA->calculate;
  98                 AA->draw($cairo);
  99         }
 100
 101         $win->draw_drawable($wgc, $pixmap, 0, 0, 0, 0, $pixw, $pixh);
 102         $last_scene = $u_scene;
 103         $last_frame = $u_frame;
 104 }
 105
 106 sub step() {
 107         # FIXME: the timer still runs
 108         if (@u_scenes) {
 109                 if ($u_direction > 0) {
 110                         if ($u_frame < @{$u_scenes[$u_scene]}-1) {
 111                                 $u_frame++;
 112                         } elsif ($movie && $u_scene < @u_scenes - 1) {
 113                                 $u_scene++;
 114                                 $u_frame = 0;
 115                         }
 116                 } elsif ($u_direction < 0) {
 117                         if ($u_frame) {
 118                                 $u_frame--;
 119                         } elsif ($movie && $u_scene) {
 120                                 $u_scene--;
 121                                 $u_frame = @{$u_scenes[$u_scene]} - 1;
 122                         }
 123                 }
 124                 return if ($u_scene == $last_scene && $u_frame == $last_frame);
 125         } else {
 126                 AA::Anim->step;
 127         }
 128         draw(0);
 129 }
 130
 131 sub prepare() {
 132         $window = Gtk2::Window->new ('toplevel');
 133         $area = Gtk2::DrawingArea->new();
 134         $area->signal_connect("expose-event" => sub {
 135                 draw(1);
 136                 if (!defined $timer) {
 137                         $timer = Glib::Timeout->add(30, sub { $stopped || step(); return 1; });
 138                 }
 139         });
 140         $area->set_flags('can-focus');
 141         # $area->add_events('key-press-mask');
 142         $area->signal_connect('key-press-event' => sub {
 143                 my ($w, $evt) = @_;
 144                 my $k = Gtk2::Gdk::keyval_name(0, $evt->keyval);
 145                 print "Pressed key $k\n" if $debug;
 146                 if ($k eq "Escape") {
 147                         Gtk2->main_quit;
 148                 } elsif ($k eq "f") {
 149                         if ($fullscreen = !$fullscreen) {
 150                                 $window->fullscreen;
 151                         } else {
 152                                 $window->unfullscreen;
 153                         }
 154                 } elsif ($k eq "space" || $k eq "Right" || $k eq "Page_Down") {
 155                         if (@u_scenes) {
 156                                 if ($u_direction > 0 && $u_scene+1 < @u_scenes) {
 157                                         $u_scene++;
 158                                         $u_frame = 0;
 159                                 }
 160                                 $u_direction = 1;
 161                                 draw(0);
 162                         } else {
 163                                 while (AA::Anim->step) { AA->calculate; }
 164                                 if ($u_scene+1 < @$u_scenario) {
 165                                         $u_scene++;
 166                                         AA::Anim->start;
 167                                         &{$u_scenario->[$u_scene]};
 168                                         draw(0);
 169                                 }
 170                         }
 171                 } elsif ($k eq "BackSpace" || $k eq "Left" || $k eq "Page_Up") {
 172                         if (@u_scenes && $u_scene) {
 173                                 if (!$u_frame || $u_direction < 0) {
 174                                         $u_scene--;
 175                                         $u_frame = @{$u_scenes[$u_scene]}-1;
 176                                 }
 177                                 $u_direction = -1;
 178                                 draw(0);
 179                         }
 180                 } elsif ($k eq "Home" || $k eq "0") {
 181                         if (@u_scenes) {
 182                                 $u_scene = 0;
 183                                 $u_frame = 0;
 184                                 $u_direction = 1;
 185                                 draw(0);
 186                         }
 187                 } elsif ($k eq "End" || $k eq "9") {
 188                         if (@u_scenes) {
 189                                 $u_scene = $#u_scenes;
 190                                 $u_frame = @{$u_scenes[$u_scene]}-1;
 191                                 $u_direction = 1;
 192                                 draw(0);
 193                         }
 194                 } elsif ($k eq "p") {
 195                         $stopped = !$stopped;
 196                         print "Stopped is $stopped\n" if $debug;
 197                 } elsif ($k eq "m") {
 198                         $movie = !$movie;
 199                         print "Movie mode is $movie\n" if $debug;
 200                 } elsif ($k eq "Return") {
 201                         if (@u_scenes) {
 202                                 $u_frame = ($u_direction > 0) ? @{$u_scenes[$u_scene]}-1 : 0;
 203                         } else {
 204                                 while (AA::Anim->step) { AA->calculate; }
 205                         }
 206                 }
 207         });
 208
 209         $window->signal_connect ("delete-event" => sub { Gtk2->main_quit });
 210         $window->set_title("Brum");
 211         $window->set_wmclass("brum", "Brum");
 212         $window->set_default_size(640, 480);
 213         $window->add ($area);
 214         $window->show_all;
 215 }
 216
 217 sub RunScenario($$) {
 218         my ($ui, $scenario) = @_;
 219
 220         if ($ui->{MODE}) {
 221                 print "Rendering...\n";
 222                 foreach my $s (@$scenario) {
 223                         print ">>> Scene ", scalar @u_scenes, "\n" if $debug;
 224                         AA::Anim->start;
 225                         &$s;
 226                         my $show = [];
 227                         while (AA::Anim->step) {
 228                                 print "\t>>> Frame ", scalar @$show, "\n" if $debug;
 229                                 AA->calculate;
 230                                 push @$show, AA::Scene->new();
 231                         }
 232                         push @u_scenes, $show;
 233                 }
 234                 print "Ready.\n";
 235         } else {
 236                 $u_scenario = $scenario;
 237                 AA::Anim->start;
 238                 &{$scenario->[0]};
 239         }
 240
 241         $u_scene = 0;
 242         $u_frame = 0;
 243         $u_direction = 1;
 244         prepare();
 245         Gtk2->main;
 246 }
 247
 248 package AA::UI::PDF;
 249
 250 our @ISA = ('AA::UI');
 251
 252 sub new($$) {
 253         my ($class, $name) = @_;
 254         my $ui = { };
 255         $ui->{SURF} = Cairo::PdfSurface->create($name, 512, 384) or die "Unable to create PDF surface $name\n";
 256         $ui->{CAIRO} = Cairo::Context->create($ui->{SURF});
 257         $ui->{CAIRO}->scale(.5, .5);
 258         return bless($ui, $class);
 259 }
 260
 261 sub RunScenario($$$) {
 262         my ($ui, $scenario) = @_;
 263         my $page = 0;
 264         foreach my $s (@$scenario) {
 265                 $page++;
 266                 print "### Page $page ###\n";
 267                 AA::Anim->start;
 268                 &$s();
 269                 do {
 270                         AA->calculate;
 271                 } while (AA::Anim->step);
 272                 AA->draw($ui->{CAIRO});
 273                 $ui->{CAIRO}->show_page;
 274         }
 275 }
 276
 277 package AA::UI::PNG;
 278
 279 our @ISA = ('AA::UI');
 280
 281 sub new($$) {
 282         my ($class, $name) = @_;
 283         my $ui = { };
 284         $ui->{NAME} = $name;
 285         $ui->{SURF} = Cairo::ImageSurface->create('argb32', 1024, 768) or die "Unable to create image surface $name\n";
 286         $ui->{CAIRO} = Cairo::Context->create($ui->{SURF});
 287         return bless($ui, $class);
 288 }
 289
 290 sub RunScenario($$$) {
 291         my ($ui, $scenario) = @_;
 292         my $cairo = $ui->{CAIRO};
 293         my $page = 0;
 294         foreach my $s (@$scenario) {
 295                 $page++;
 296                 print "### Page $page ###\n";
 297                 AA::Anim->start;
 298                 &$s();
 299                 do {
 300                         AA->calculate;
 301                 } while (AA::Anim->step);
 302                 AA->draw($cairo);
 303                 $cairo->show_page;
 304                 my $name = sprintf($ui->{NAME}, $page);
 305                 $ui->{SURF}->write_to_png($name) or die "Unable to write to $name\n";
 306         }
 307 }
 308
 309 1;