--- deliantra/Deliantra-Client/DC/UI.pm	2007/07/20 18:30:03	1.388
+++ deliantra/Deliantra-Client/DC/UI.pm	2007/12/26 21:03:21	1.454
@@ -1,14 +1,13 @@
-package CFPlus::UI;
+package DC::UI;
 
 use utf8;
 use strict;
 
 use List::Util ();
-use Event;
 
-use CFPlus;
-use CFPlus::Pod;
-use CFPlus::Texture;
+use DC;
+use DC::Pod;
+use DC::Texture;
 
 our ($FOCUS, $HOVER, $GRAB); # various widgets
 
@@ -19,7 +18,9 @@
 
 our %WIDGET; # all widgets, weak-referenced
 
-our $TOOLTIP_WATCHER = Event->idle (min => 1/60, cb => sub {
+our $TOOLTIP_WATCHER = EV::timer_ns 0, 0.03, sub {
+   $_[0]->stop;
+
    if (!$GRAB) {
       for (my $widget = $HOVER; $widget; $widget = $widget->{parent}) {
          if (length $widget->{tooltip}) {
@@ -32,10 +33,6 @@
 
                return if $ENV{CFPLUS_DEBUG} & 8;
 
-               my $tip = $widget->{tooltip};
-
-               $tip = $tip->($widget) if CODE:: eq ref $tip;
-               
                $TOOLTIP->set_tooltip_from ($widget);
                $TOOLTIP->show;
             }
@@ -48,7 +45,7 @@
    $TOOLTIP->hide;
    $TOOLTIP->{owner}->emit ("tooltip_hide") if $TOOLTIP->{owner};
    delete $TOOLTIP->{owner};
-});
+};
 
 sub get_layout {
    my $layout;
@@ -93,7 +90,7 @@
       $hover->update if $hover && $hover->{can_hover};
       $HOVER->update if $HOVER && $HOVER->{can_hover};
 
-      $TOOLTIP_WATCHER->start;
+      $TOOLTIP_WATCHER->again;
    }
 }
 
@@ -109,14 +106,14 @@
       $GRAB = $widget;
       $GRAB->update if $GRAB;
 
-      $TOOLTIP_WATCHER->cb->();
+      $TOOLTIP_WATCHER->invoke;
    }
 
    if ($GRAB) {
       if ($ev->{button} == 4 || $ev->{button} == 5) {
          # mousewheel
          my $delta = $ev->{button} * 2 - 9;
-         my $shift = $ev->{mod} & CFPlus::KMOD_SHIFT;
+         my $shift = $ev->{mod} & DC::KMOD_SHIFT;
 
          $ev->{dx} = $shift ? $delta : 0;
          $ev->{dy} = $shift ? 0 : $delta;
@@ -144,7 +141,7 @@
       $GRAB->update if $GRAB;
 
       check_hover $widget;
-      $TOOLTIP_WATCHER->cb->();
+      $TOOLTIP_WATCHER->invoke;
    }
 }
 
@@ -216,7 +213,7 @@
 
 #############################################################################
 
-package CFPlus::UI::Event;
+package DC::UI::Event;
 
 sub xy {
    $_[1]->coord2local ($_[0]{x}, $_[0]{y})
@@ -224,11 +221,11 @@
 
 #############################################################################
 
-package CFPlus::UI::Base;
+package DC::UI::Base;
 
 use strict;
 
-use CFPlus::OpenGL;
+use DC::OpenGL;
 
 sub new {
    my $class = shift;
@@ -243,7 +240,7 @@
       @_
    }, $class;
 
-   CFPlus::weaken ($CFPlus::UI::WIDGET{$self+0} = $self);
+   DC::weaken ($DC::UI::WIDGET{$self+0} = $self);
 
    for (keys %$self) {
       if (/^on_(.*)$/) {
@@ -251,11 +248,11 @@
       }
    }
 
-   if (my $layout = $CFPlus::UI::LAYOUT->{$self->{name}}) {
-      $self->{x}       = $layout->{x} * $CFPlus::UI::ROOT->{alloc_w} if exists $layout->{x};
-      $self->{y}       = $layout->{y} * $CFPlus::UI::ROOT->{alloc_h} if exists $layout->{y};
-      $self->{force_w} = $layout->{w} * $CFPlus::UI::ROOT->{alloc_w} if exists $layout->{w};
-      $self->{force_h} = $layout->{h} * $CFPlus::UI::ROOT->{alloc_h} if exists $layout->{h};
+   if (my $layout = $DC::UI::LAYOUT->{$self->{name}}) {
+      $self->{x}       = $layout->{x} * $DC::UI::ROOT->{alloc_w} if exists $layout->{x};
+      $self->{y}       = $layout->{y} * $DC::UI::ROOT->{alloc_h} if exists $layout->{y};
+      $self->{force_w} = $layout->{w} * $DC::UI::ROOT->{alloc_w} if exists $layout->{w};
+      $self->{force_h} = $layout->{h} * $DC::UI::ROOT->{alloc_h} if exists $layout->{h};
 
       $self->{x} -= $self->{force_w} * 0.5 if exists $layout->{x};
       $self->{y} -= $self->{force_h} * 0.5 if exists $layout->{y};
@@ -275,7 +272,7 @@
 }
 
 sub TO_JSON {
-   { __widget_ref__ => $_[0]{s_id} }
+   { "\fw" => $_[0]{s_id} }
 }
 
 sub show {
@@ -283,7 +280,7 @@
 
    return if $self->{parent};
 
-   $CFPlus::UI::ROOT->add ($self);
+   $DC::UI::ROOT->add ($self);
 }
 
 sub set_visible {
@@ -314,7 +311,7 @@
    undef $GRAB  if $GRAB  == $self;
    undef $HOVER if $HOVER == $self;
 
-   $CFPlus::UI::TOOLTIP_WATCHER->cb->()
+   $DC::UI::TOOLTIP_WATCHER->invoke
       if $TOOLTIP->{owner} == $self;
 
    $self->emit ("focus_out");
@@ -343,8 +340,11 @@
 
    $self->set_invisible;
 
-   $self->{parent}->remove ($self)
-      if $self->{parent};
+   # extra $parent copy for 5.8.8+ bug workaround
+   # (otherwise $_[0] in remove gets freed
+   if (my $parent = $self->{parent}) {
+      $parent->remove ($self);
+   }
 }
 
 sub move_abs {
@@ -366,6 +366,16 @@
    $self->realloc;
 }
 
+# traverse the widget chain up to find the maximum "physical" size constraints
+sub get_max_wh {
+   my ($self) = @_;
+
+   return $self->{parent}->get_max_wh
+      if $self->{parent};
+
+   ($::WIDTH, $::HEIGHT)
+}
+
 sub size_request {
    require Carp;
    Carp::confess "size_request is abstract";
@@ -381,8 +391,8 @@
    if ($self->{aspect}) {
       my ($ow, $oh) = ($w, $h);
 
-      $w = List::Util::min $w, CFPlus::ceil $h * $self->{aspect};
-      $h = List::Util::min $h, CFPlus::ceil $w / $self->{aspect};
+      $w = List::Util::min $w, DC::ceil $h * $self->{aspect};
+      $h = List::Util::min $h, DC::ceil $w / $self->{aspect};
 
       # use alignment to adjust x, y
 
@@ -433,9 +443,9 @@
 
    $self->{tooltip} = $tooltip;
 
-   if ($CFPlus::UI::TOOLTIP->{owner} == $self) {
-      delete $CFPlus::UI::TOOLTIP->{owner};
-      $CFPlus::UI::TOOLTIP_WATCHER->cb->();
+   if ($DC::UI::TOOLTIP->{owner} == $self) {
+      delete $DC::UI::TOOLTIP->{owner};
+      $DC::UI::TOOLTIP_WATCHER->invoke;
    }
 }
 
@@ -443,7 +453,7 @@
 sub coord2local {
    my ($self, $x, $y) = @_;
 
-   Carp::confess unless $self->{parent};#d#
+   return (undef, undef) unless $self->{parent};
 
    $self->{parent}->coord2local ($x  - $self->{x}, $y - $self->{y})
 }
@@ -452,7 +462,7 @@
 sub coord2global {
    my ($self, $x, $y) = @_;
 
-   Carp::confess unless $self->{parent};#d#
+   return (undef, undef) unless $self->{parent};
 
    $self->{parent}->coord2global ($x + $self->{x}, $y + $self->{y})
 }
@@ -511,7 +521,7 @@
 
    push @{ $self->{signal_cb}{$signal} }, $cb;
 
-   defined wantarray and CFPlus::guard {
+   defined wantarray and DC::guard {
       @{ $self->{signal_cb}{$signal} } = grep $_ != $cb,
          @{ $self->{signal_cb}{$signal} };
    }
@@ -559,7 +569,7 @@
 sub set_parent {
    my ($self, $parent) = @_;
 
-   CFPlus::weaken ($self->{parent} = $parent);
+   DC::weaken ($self->{parent} = $parent);
    $self->set_visible if $parent->{visible};
 }
 
@@ -595,52 +605,8 @@
 # functions seems pointless.
 our ($draw_x, $draw_y, $draw_w, $draw_h); # screen rectangle being drawn
 
-sub draw {
-   my ($self) = @_;
-
-   return unless $self->{h} && $self->{w};
-
-   # update screen rectangle
-   local $draw_x = $draw_x + $self->{x};
-   local $draw_y = $draw_y + $self->{y};
-
-   # skip widgets that are entirely outside the drawing area
-   return if ($draw_x + $self->{w} < 0) || ($draw_x >= $draw_w)
-          || ($draw_y + $self->{h} < 0) || ($draw_y >= $draw_h);
-
-   glPushMatrix;
-   glTranslate $self->{x}, $self->{y}, 0;
-
-   if ($self == $HOVER && $self->{can_hover}) {
-      glColor 1*0.2, 0.8*0.2, 0.5*0.2, 0.2;
-      glEnable GL_BLEND;
-      glBlendFunc GL_ONE, GL_ONE_MINUS_SRC_ALPHA;
-      glBegin GL_QUADS;
-      glVertex 0         , 0;
-      glVertex $self->{w}, 0;
-      glVertex $self->{w}, $self->{h};
-      glVertex 0         , $self->{h};
-      glEnd;
-      glDisable GL_BLEND;
-   }
-
-   if ($ENV{CFPLUS_DEBUG} & 1) {
-      glPushMatrix;
-      glColor 1, 1, 0, 1;
-      glTranslate 0.375, 0.375;
-      glBegin GL_LINE_LOOP;
-      glVertex 0             , 0;
-      glVertex $self->{w} - 1, 0;
-      glVertex $self->{w} - 1, $self->{h} - 1;
-      glVertex 0             , $self->{h} - 1;
-      glEnd;
-      glPopMatrix;
-      #CFPlus::UI::Label->new (w => $self->{w}, h => $self->{h}, text => $self, fontsize => 0)->_draw;
-   }
-
-   $self->_draw;
-   glPopMatrix;
-}
+#sub draw {
+#CFPlus.xs
 
 sub _draw {
    my ($self) = @_;
@@ -648,12 +614,12 @@
    warn "no draw defined for $self\n";
 }
 
-my $cntx;#d#
 sub DESTROY {
    my ($self) = @_;
 
-   return if CFPlus::in_destruct;
+   return if DC::in_destruct;
 
+   local $@;
    eval { $self->destroy };
    warn "exception during widget destruction: $@" if $@ & $@ != /during global destruction/;
 
@@ -662,18 +628,16 @@
 
 #############################################################################
 
-package CFPlus::UI::DrawBG;
+package DC::UI::DrawBG;
 
-our @ISA = CFPlus::UI::Base::;
+our @ISA = DC::UI::Base::;
 
 use strict;
-use CFPlus::OpenGL;
+use DC::OpenGL;
 
 sub new {
    my $class = shift;
 
-   # range [value, low, high, page]
-
    $class->SUPER::new (
       #bg        => [0, 0, 0, 0.2],
       #active_bg => [1, 1, 1, 0.5],
@@ -694,23 +658,16 @@
       glEnable GL_BLEND;
       glBlendFunc GL_ONE, GL_ONE_MINUS_SRC_ALPHA;
       glColor_premultiply @$color;
-
-      glBegin GL_QUADS;
-      glVertex 0 , 0;
-      glVertex 0 , $h;
-      glVertex $w, $h;
-      glVertex $w, 0;
-      glEnd;
-
+      glRect 0, 0, $w, $h;
       glDisable GL_BLEND;
    }
 }
 
 #############################################################################
 
-package CFPlus::UI::Empty;
+package DC::UI::Empty;
 
-our @ISA = CFPlus::UI::Base::;
+our @ISA = DC::UI::Base::;
 
 sub new {
    my ($class, %arg) = @_;
@@ -727,9 +684,9 @@
 
 #############################################################################
 
-package CFPlus::UI::Container;
+package DC::UI::Container;
 
-our @ISA = CFPlus::UI::Base::;
+our @ISA = DC::UI::Base::;
 
 sub new {
    my ($class, %arg) = @_;
@@ -743,7 +700,7 @@
    );
 
    $self->add (@$children)
-      if $children;
+      if $children && @$children;
 
    $self
 }
@@ -762,6 +719,7 @@
    $_->set_parent ($self)
       for @widgets;
 
+   # TODO: only do this in widgets that need it, e.g. root, fixed
    use sort 'stable';
 
    $self->{children} = [
@@ -770,6 +728,10 @@
    ];
 
    $self->realloc;
+
+   $self->emit (c_add => \@widgets);
+
+   map $_+0, @widgets
 }
 
 sub children {
@@ -777,12 +739,15 @@
 }
 
 sub remove {
-   my ($self, $child) = @_;
+   my ($self, @widgets) = @_;
 
-   delete $child->{parent};
-   $child->hide;
+   $self->emit (c_remove => \@widgets);
 
-   $self->{children} = [ grep $_ != $child, @{ $self->{children} } ];
+   for my $child (@widgets) {
+      delete $child->{parent};
+      $child->hide;
+      $self->{children} = [ grep $_ != $child, @{ $self->{children} } ];
+   }
 
    $self->realloc;
 }
@@ -790,7 +755,7 @@
 sub clear {
    my ($self) = @_;
 
-   my $children = delete $self->{children};
+   my $children = $self->{children};
    $self->{children} = [];
 
    for (@$children) {
@@ -820,19 +785,19 @@
 sub _draw {
    my ($self) = @_;
 
-   $_->draw for @{$self->{children}};
+   $_->draw for $self->visible_children;
 }
 
 #############################################################################
 
-package CFPlus::UI::Bin;
+package DC::UI::Bin;
 
-our @ISA = CFPlus::UI::Container::;
+our @ISA = DC::UI::Container::;
 
 sub new {
    my ($class, %arg) = @_;
 
-   my $child = (delete $arg{child}) || new CFPlus::UI::Empty::;
+   my $child = (delete $arg{child}) || new DC::UI::Empty::;
 
    $class->SUPER::new (children => [$child], %arg)
 }
@@ -840,7 +805,7 @@
 sub add {
    my ($self, $child) = @_;
 
-   $self->SUPER::remove ($_) for @{ $self->{children} };
+   $self->clear;
    $self->SUPER::add ($child);
 }
 
@@ -849,7 +814,7 @@
 
    $self->SUPER::remove ($widget);
 
-   $self->{children} = [new CFPlus::UI::Empty]
+   $self->{children} = [new DC::UI::Empty]
       unless @{$self->{children}};
 }
 
@@ -868,14 +833,13 @@
 }
 
 #############################################################################
-
 # back-buffered drawing area
 
-package CFPlus::UI::Window;
+package DC::UI::Window;
 
-our @ISA = CFPlus::UI::Bin::;
+our @ISA = DC::UI::Bin::;
 
-use CFPlus::OpenGL;
+use DC::OpenGL;
 
 sub new {
    my ($class, %arg) = @_;
@@ -907,12 +871,12 @@
 sub render_child {
    my ($self) = @_;
 
-   $self->{texture} = new_from_opengl CFPlus::Texture $self->{w}, $self->{h}, sub {
+   $self->{texture} = new_from_opengl DC::Texture $self->{w}, $self->{h}, sub {
       glClearColor 0, 0, 0, 0;
       glClear GL_COLOR_BUFFER_BIT;
 
       {
-         package CFPlus::UI::Base;
+         package DC::UI::Base;
 
          local ($draw_x, $draw_y, $draw_w, $draw_h) =
             (0, 0, $self->{w}, $self->{h});
@@ -939,11 +903,11 @@
 
 #############################################################################
 
-package CFPlus::UI::ViewPort;
+package DC::UI::ViewPort;
 
 use List::Util qw(min max);
 
-our @ISA = CFPlus::UI::Window::;
+our @ISA = DC::UI::Window::;
 
 sub new {
    my $class = shift;
@@ -960,8 +924,8 @@
 
    my ($w, $h) = @{$self->child}{qw(req_w req_h)};
 
-   $w = 10 if $self->{scroll_x};
-   $h = 10 if $self->{scroll_y};
+   $w = 1 if $self->{scroll_x};
+   $h = 1 if $self->{scroll_y};
 
    ($w, $h)
 }
@@ -995,6 +959,24 @@
    }
 }
 
+sub set_center {
+   my ($self, $x, $y) = @_;
+
+   $self->set_offset ($x - $self->{w} * .5, $y - $self->{h} * .5);
+}
+
+sub make_visible {
+   my ($self, $x, $y, $border) = @_;
+
+   if (  $x < $self->{view_x} + $self->{w} * $border
+      || $x > $self->{view_x} + $self->{w} * (1 - $border)
+      || $y < $self->{view_y} + $self->{h} * $border
+      || $y > $self->{view_y} + $self->{h} * (1 - $border)
+   ) {
+      $self->set_center ($x, $y);
+   }
+}
+
 # hmm, this does not work for topleft of $self... but we should not ask for that
 sub coord2local {
    my ($self, $x, $y) = @_;
@@ -1019,26 +1001,26 @@
    ) {
       $self->child->find_widget ($x + $self->{view_x}, $y + $self->{view_y})
    } else {
-      $self->CFPlus::UI::Base::find_widget ($x, $y)
+      $self->DC::UI::Base::find_widget ($x, $y)
    }
 }
 
 sub _render {
    my ($self) = @_;
 
-   local $CFPlus::UI::Base::draw_x = $CFPlus::UI::Base::draw_x - $self->{view_x};
-   local $CFPlus::UI::Base::draw_y = $CFPlus::UI::Base::draw_y - $self->{view_y};
+   local $DC::UI::Base::draw_x = $DC::UI::Base::draw_x - $self->{view_x};
+   local $DC::UI::Base::draw_y = $DC::UI::Base::draw_y - $self->{view_y};
 
-   CFPlus::OpenGL::glTranslate -$self->{view_x}, -$self->{view_y};
+   DC::OpenGL::glTranslate -$self->{view_x}, -$self->{view_y};
 
    $self->SUPER::_render;
 }
 
 #############################################################################
 
-package CFPlus::UI::ScrolledWindow;
+package DC::UI::ScrolledWindow;
 
-our @ISA = CFPlus::UI::Table::;
+our @ISA = DC::UI::Table::;
 
 sub new {
    my ($class, %arg) = @_;
@@ -1047,7 +1029,9 @@
 
    my $self;
 
-   my $hslider = new CFPlus::UI::Slider
+   my $hslider = new DC::UI::Slider
+      c_col      => 0,
+      c_row      => 1,
       vertical   => 0,
       range      => [0, 0, 1, 0.01], # HACK fix
       on_changed => sub {
@@ -1056,7 +1040,9 @@
       },
    ;
 
-   my $vslider = new CFPlus::UI::Slider
+   my $vslider = new DC::UI::Slider
+      c_col      => 1,
+      c_row      => 0,
       vertical   => 1,
       range      => [0, 0, 1, 0.01], # HACK fix
       on_changed => sub {
@@ -1076,7 +1062,9 @@
       %arg,
    );
 
-   $self->{vp} = new CFPlus::UI::ViewPort
+   $self->{vp} = new DC::UI::ViewPort
+      c_col      => 0,
+      c_row      => 0,
       expand     => 1,
       scroll_x   => $self->{scroll_x},
       scroll_y   => $self->{scroll_y},
@@ -1088,62 +1076,83 @@
 
          0
       },
+      on_size_allocate => sub {
+         my ($vp, $w, $h) = @_;
+         $vp->{parent}->update_slider;
+         0
+      },
    ;
 
-   $self->SUPER::add_at (0, 0, $self->{vp});
+   $self->SUPER::add ($self->{vp});
 
    $self->add ($child) if $child;
 
    $self
 }
 
-#TODO# update range on size_allocate depending on child
-
 sub add {
    my ($self, $widget) = @_;
 
    $self->{vp}->add ($self->{child} = $widget);
 }
 
+sub set_offset   { shift->{vp}->set_offset   (@_) }
+sub set_center   { shift->{vp}->set_center   (@_) }
+sub make_visible { shift->{vp}->make_visible (@_) }
+
 sub update_slider {
    my ($self) = @_;
 
    my $child = ($self->{vp} or return)->child;
 
-   my ($w1, $w2) = ($child->{w}, $self->{vp}{w});
-   $self->{hslider}->set_range ([$self->{hslider}{range}[0], 0, $w1, $w2, 1]);
+   if ($self->{scroll_x}) {
+      my ($w1, $w2) = ($child->{req_w}, $self->{vp}{w});
+      $self->{hslider}->set_range ([$self->{hslider}{range}[0], 0, $w1, $w2, 1]);
+
+      my $visible = $w1 > $w2;
+      if ($visible != $self->{hslider_visible}) {
+         $self->{hslider_visible} = $visible;
+         $visible ? $self->SUPER::add ($self->{hslider})
+                  : $self->SUPER::remove ($self->{hslider});
+      }
+   }
 
-   my $visible = $w1 > $w2;
-   if ($visible != $self->{hslider}{visible}) {
-      $visible ? $self->SUPER::add_at (0, 1, $self->{hslider})
-               : $self->{hslider}->hide;
-   }
-
-   my ($h1, $h2) = ($child->{h}, $self->{vp}{h});
-   $self->{vslider}->set_range ([$self->{vslider}{range}[0], 0, $h1, $h2, 1]);
-
-   my $visible = $h1 > $h2;
-   if ($visible != $self->{vslider}{visible}) {
-      $visible ? $self->SUPER::add_at (1, 0, $self->{vslider})
-               : $self->{vslider}->hide;
+   if ($self->{scroll_y}) {
+      my ($h1, $h2) = ($child->{req_h}, $self->{vp}{h});
+      $self->{vslider}->set_range ([$self->{vslider}{range}[0], 0, $h1, $h2, 1]);
+
+      my $visible = $h1 > $h2;
+      if ($visible != $self->{vslider_visible}) {
+         $self->{vslider_visible} = $visible;
+         $visible ? $self->SUPER::add ($self->{vslider})
+                  : $self->SUPER::remove ($self->{vslider});
+      }
    }
 }
 
-sub update {
-   my ($self) = @_;
+sub start_dragging {
+   my ($self, $ev) = @_;
 
-   $self->update_slider;
-   $self->SUPER::update;
+   $self->grab_focus;
+
+   my $ox = $self->{vp}{view_x};
+   my $oy = $self->{vp}{view_y};
+   
+   $self->{motion} = sub {
+      my ($ev, $x, $y) = @_;
+
+      $ox -= $ev->{xrel};
+      $oy -= $ev->{yrel};
+
+      $self->{vp}->set_offset ($ox, $oy);
+   };
 }
 
 sub invoke_mouse_wheel {
    my ($self, $ev) = @_;
 
-   $self->{vslider}->emit (mouse_wheel => $ev)
-      if $ev->{dy};
-
-   $self->{hslider}->emit (mouse_wheel => $ev)
-      if $ev->{dx};
+   $self->{vslider}->emit (mouse_wheel => $ev) if $self->{vslider_visible};
+   $self->{hslider}->emit (mouse_wheel => $ev) if $self->{hslider_visible};
 
    1
 }
@@ -1152,18 +1161,7 @@
    my ($self, $ev, $x, $y) = @_;
 
    if ($ev->{button} == 2) {
-      $self->grab_focus;
-
-      my $ox = $self->{vp}{view_x} + $ev->{x};
-      my $oy = $self->{vp}{view_y} + $ev->{y};
-      
-      $self->{motion} = sub {
-         my ($ev, $x, $y) = @_;
-
-         $self->{vp}->set_offset ($ox - $ev->{x}, $oy - $ev->{y});
-         $self->update;
-      };
-
+      $self->start_dragging ($ev);
       return 1;
    }
 
@@ -1200,11 +1198,11 @@
 
 #############################################################################
 
-package CFPlus::UI::Frame;
+package DC::UI::Frame;
 
-our @ISA = CFPlus::UI::Bin::;
+our @ISA = DC::UI::Bin::;
 
-use CFPlus::OpenGL;
+use DC::OpenGL;
 
 sub new {
    my $class = shift;
@@ -1224,14 +1222,7 @@
       glEnable GL_BLEND;
       glBlendFunc GL_ONE, GL_ONE_MINUS_SRC_ALPHA;
       glColor_premultiply @{ $self->{bg} };
-
-      glBegin GL_QUADS;
-      glVertex 0 , 0;
-      glVertex 0 , $h;
-      glVertex $w, $h;
-      glVertex $w, 0;
-      glEnd;
-
+      glRect 0, 0, $w, $h;
       glDisable GL_BLEND;
    }
 
@@ -1240,17 +1231,17 @@
 
 #############################################################################
 
-package CFPlus::UI::FancyFrame;
+package DC::UI::FancyFrame;
 
-our @ISA = CFPlus::UI::Bin::;
+our @ISA = DC::UI::Bin::;
 
-use CFPlus::OpenGL;
+use DC::OpenGL;
 
 sub new {
    my ($class, %arg) = @_;
 
    if ((exists $arg{label}) && !ref $arg{label}) {
-      $arg{label} = new CFPlus::UI::Label
+      $arg{label} = new DC::UI::Label
          align    => 1,
          valign   => 0,
          text     => $arg{label},
@@ -1272,7 +1263,7 @@
    my ($self, @widgets) = @_;
 
    $self->SUPER::add (@widgets);
-   $self->CFPlus::UI::Container::add ($self->{label}) if $self->{label};
+   $self->DC::UI::Container::add ($self->{label}) if $self->{label};
 }
 
 sub border {
@@ -1340,22 +1331,22 @@
 
 #############################################################################
 
-package CFPlus::UI::Toplevel;
+package DC::UI::Toplevel;
 
-our @ISA = CFPlus::UI::Bin::;
+our @ISA = DC::UI::Bin::;
 
-use CFPlus::OpenGL;
+use DC::OpenGL;
 
 my $bg = 
-      new_from_file CFPlus::Texture CFPlus::find_rcfile "d1_bg.png",
+      new_from_file DC::Texture DC::find_rcfile "d1_bg.png",
          mipmap => 1, wrap => 1;
 
 my @border = 
-      map { new_from_file CFPlus::Texture CFPlus::find_rcfile $_, mipmap => 1 }
+      map { new_from_file DC::Texture DC::find_rcfile $_, mipmap => 1 }
          qw(d1_border_top.png d1_border_right.png d1_border_left.png d1_border_bottom.png);
 
 my @icon =
-      map { new_from_file CFPlus::Texture CFPlus::find_rcfile $_, mipmap => 1 }
+      map { new_from_file DC::Texture DC::find_rcfile $_, mipmap => 1 }
          qw(x1_move.png x1_resize.png);
 
 sub new {
@@ -1371,7 +1362,7 @@
       %arg,
    );
 
-   $self->{title_widget} = new CFPlus::UI::Label
+   $self->{title_widget} = new DC::UI::Label
       align    => 0,
       valign   => 1,
       text     => $self->{title},
@@ -1380,11 +1371,11 @@
 
    if ($self->{has_close_button}) {
       $self->{close_button} =
-         new CFPlus::UI::ImageButton
+         new DC::UI::ImageButton
             path        => 'x1_close.png',
             on_activate => sub { $self->emit ("delete") };
 
-      $self->CFPlus::UI::Container::add ($self->{close_button});
+      $self->DC::UI::Container::add ($self->{close_button});
    }
 
    $self
@@ -1394,14 +1385,23 @@
    my ($self, @widgets) = @_;
 
    $self->SUPER::add (@widgets);
-   $self->CFPlus::UI::Container::add ($self->{close_button}) if $self->{close_button};
-   $self->CFPlus::UI::Container::add ($self->{title_widget}) if $self->{title_widget};
+   $self->DC::UI::Container::add ($self->{close_button}) if $self->{close_button};
+   $self->DC::UI::Container::add ($self->{title_widget}) if $self->{title_widget};
 }
 
 sub border {
    int $_[0]{border} * $::FONTSIZE
 }
 
+sub get_max_wh {
+   my ($self) = @_;
+
+   return ($self->{w}, $self->{h})
+      if $self->{visible} && $self->{w};
+
+   $self->SUPER::get_max_wh
+}
+
 sub size_request {
    my ($self) = @_;
 
@@ -1581,93 +1581,78 @@
 
 #############################################################################
 
-package CFPlus::UI::Table;
+package DC::UI::Table;
 
-our @ISA = CFPlus::UI::Base::;
+our @ISA = DC::UI::Container::;
 
 use List::Util qw(max sum);
 
-use CFPlus::OpenGL;
+use DC::OpenGL;
 
 sub new {
    my $class = shift;
 
    $class->SUPER::new (
-      children   => [],
       col_expand => [],
       row_expand => [],
       @_,
    )
 }
 
-sub children {
-   grep $_, map @$_, grep $_, @{ $_[0]{children} }
-}
-
-# TODO: store row/col info in child widget and use standard add/del
 sub add {
-   my $self = shift;
+   my ($self, @widgets) = @_;
+
+   for my $child (@widgets) {
+      $child->{c_rowspan} ||= 1;
+      $child->{c_colspan} ||= 1;
+   }
 
-   Carp::cluck "please use the add_at method instead of calling add, thank you.\n";#d#
-   $self->add_at (@_);
+   $self->SUPER::add (@widgets);
 }
 
 sub add_at {
    my $self = shift;
 
+   my @widgets;
+
    while (@_) {
       my ($col, $row, $child) = splice @_, 0, 3, ();
 
-      $child->set_parent ($self);
-      $self->{children}[$row][$col] = $child;
-   }
+      $child->{c_row} = $row;
+      $child->{c_col} = $col;
 
-   $self->{force_realloc}    = 1;
-   $self->{force_size_alloc} = 1;
-   $self->realloc;
-}
-
-sub remove {
-   my ($self, $child) = @_;
-
-   for (@{ $self->{children} }) {
-      for (@{ $_ || [] }) {
-         $_ = undef if $_ == $child;
-      }
+      push @widgets, $child;
    }
+
+   $self->add (@widgets);
 }
 
-# TODO: move to container class maybe? send children a signal on removal?
-sub clear {
+sub get_wh {
    my ($self) = @_;
 
+   my (@w, @h);
+
    my @children = $self->children;
-   delete $self->{children};
-   
-   for (@children) {
-      delete $_->{parent};
-      $_->hide;
-   }
 
-   $self->realloc;
-}
+   # first pass, columns
+   for my $widget (sort { $a->{c_colspan} <=> $b->{c_colspan} } @children) {
+      my ($c, $w, $cs) = @$widget{qw(c_col req_w c_colspan)};
 
-sub get_wh {
-   my ($self) = @_;
+      my $sw = sum @w[$c .. $c + $cs - 1];
 
-   my (@w, @h);
+      if ($w > $sw) {
+         $_ += ($w - $sw) / ($sw ? $sw / $_ : $cs) for @w[$c .. $c + $cs - 1];
+      }
+   }
 
-   for my $y (0 .. $#{$self->{children}}) {
-      my $row = $self->{children}[$y]
-         or next;
-
-      for my $x (0 .. $#$row) {
-         my $widget = $row->[$x]
-            or next;
-         my ($w, $h) = @$widget{qw(req_w req_h)};
+   # second pass, rows
+   for my $widget (sort { $a->{c_rowspan} <=> $b->{c_rowspan} } @children) {
+      my ($r, $h, $rs) = @$widget{qw(c_row req_h c_rowspan)};
 
-         $w[$x] = max $w[$x], $w;
-         $h[$y] = max $h[$y], $h;
+      my $sh = sum @h[$r .. $r + $rs - 1];
+
+      if ($h > $sh) {
+         $_ += ($h - $sh) / ($sh ? $sh / $_ : $rs) for @h[$r .. $r + $rs - 1];
       }
    }
 
@@ -1693,14 +1678,14 @@
    my $req_w = (sum @$ws) || 1;
    my $req_h = (sum @$hs) || 1;
 
-   # TODO: nicer code
+   # now linearly scale the rows/columns to the allocated size
    my @col_expand = @{$self->{col_expand}};
    @col_expand = (1) x @$ws unless @col_expand;
    my $col_expand = (sum @col_expand) || 1;
 
    $ws->[$_] += $col_expand[$_] / $col_expand * ($w - $req_w) for 0 .. $#$ws;
 
-   CFPlus::UI::harmonize $ws;
+   DC::UI::harmonize $ws;
 
    my @row_expand = @{$self->{row_expand}};
    @row_expand = (1) x @$ws unless @row_expand;
@@ -1708,78 +1693,35 @@
 
    $hs->[$_] += $row_expand[$_] / $row_expand * ($h - $req_h) for 0 .. $#$hs;
 
-   CFPlus::UI::harmonize $hs;
-
-   my $y;
-
-   for my $r (0 .. $#{$self->{children}}) {
-      my $row = $self->{children}[$r]
-         or next;
+   DC::UI::harmonize $hs;
 
-      my $x = 0;
-      my $row_h = $hs->[$r];
-      
-      for my $c (0 .. $#$row) {
-         my $col_w = $ws->[$c];
-
-         if (my $widget = $row->[$c]) {
-            $widget->configure ($x, $y, $col_w, $row_h);
-         }
+   my @x; for (0 .. $#$ws) { $x[$_ + 1] = $x[$_] + $ws->[$_] }
+   my @y; for (0 .. $#$hs) { $y[$_ + 1] = $y[$_] + $hs->[$_] }
 
-         $x += $col_w;
-      }
+   for my $widget ($self->children) {
+      my ($r, $c, $w, $h, $rs, $cs) = @$widget{qw(c_row c_col req_w req_h c_rowspan c_colspan)};
 
-      $y += $row_h;
+      $widget->configure (
+         $x[$c], $y[$r],
+         $x[$c + $cs] - $x[$c], $y[$r + $rs] - $y[$r],
+      );
    }
 
    1
 }
 
-sub find_widget {
-   my ($self, $x, $y) = @_;
-
-   $x -= $self->{x};
-   $y -= $self->{y};
-
-   my $res;
-
-   for (grep $_, map @$_, grep $_, @{ $self->{children} }) {
-      $res = $_->find_widget ($x, $y)
-         and return $res;
-   }
-
-   $self->SUPER::find_widget ($x + $self->{x}, $y + $self->{y})
-}
-
-sub _draw {
-   my ($self) = @_;
-
-   for (grep $_, @{$self->{children}}) {
-      $_->draw for grep $_, @$_;
-   }
-}
-
 #############################################################################
 
-package CFPlus::UI::Fixed;
+package DC::UI::Fixed;
 
 use List::Util qw(min max);
 
-our @ISA = CFPlus::UI::Container::;
-
-sub add {
-   my ($self, $child, $posmode, $x, $y, $sizemode, $w, $h) = @_;
-
-   $child->{_fixed} = [$posmode, $x, $y, $sizemode, $w, $h];
-   $self->SUPER::add ($child);
-}
+our @ISA = DC::UI::Container::;
 
 sub _scale($$$) {
-   my ($mode, $val, $max) = @_;
+   my ($rel, $val, $max) = @_;
 
-   $mode eq "abs"   ? $val
-   : $mode eq "rel" ? $val * $max
-   :                  0
+   $rel ? $val * $max : $val
 }
 
 sub size_request {
@@ -1789,14 +1731,12 @@
 
    # determine overall size by querying abs widgets
    for my $child ($self->visible_children) {
-      my ($pos, $x, $y, $size, $w, $h) = @{ $child->{_fixed} };
-
-      if ($pos eq "abs") {
-         $w = _scale $size, $w, $child->{req_w};
-         $h = _scale $size, $h, $child->{req_h};
+      unless ($child->{c_rel}) {
+         my $x = $child->{c_x};
+         my $y = $child->{c_y};
 
-         $x1 = min $x1, $x; $x2 = max $x2, $x + $w;
-         $y1 = min $y1, $y; $y2 = max $y2, $y + $h;
+         $x1 = min $x1, $x; $x2 = max $x2, $x + $child->{req_w};
+         $y1 = min $y1, $y; $y2 = max $y2, $y + $child->{req_h};
       }
    }
 
@@ -1805,16 +1745,12 @@
 
    # now layout remaining widgets
    for my $child ($self->visible_children) {
-      my ($pos, $x, $y, $size, $w, $h) = @{ $child->{_fixed} };
-
-      if ($pos ne "abs") {
-         $x = _scale $pos,  $x, $W;
-         $y = _scale $pos,  $x, $H;
-         $w = _scale $size, $w, $child->{req_w};
-         $h = _scale $size, $h, $child->{req_h};
+      if ($child->{c_rel}) {
+         my $x = _scale $child->{c_rel}, $child->{c_x}, $W;
+         my $y = _scale $child->{c_rel}, $child->{c_y}, $H;
 
-         $x1 = min $x1, $x; $x2 = max $x2, $x + $w;
-         $y1 = min $y1, $y; $y2 = max $y2, $y + $h;
+         $x1 = min $x1, $x; $x2 = max $x2, $x + $child->{req_w};
+         $y1 = min $y1, $y; $y2 = max $y2, $y + $child->{req_h};
       }
    }
 
@@ -1828,14 +1764,13 @@
    my ($self, $W, $H) = @_;
 
    for my $child ($self->visible_children) {
-      my ($pos, $x, $y, $size, $w, $h) = @{ $child->{_fixed} };
+      my $x = _scale $child->{c_rel}, $child->{c_x}, $W;
+      my $y = _scale $child->{c_rel}, $child->{c_y}, $H;
 
-      $x = _scale $pos,  $x, $W;
-      $y = _scale $pos,  $x, $H;
-      $w = _scale $size, $w, $child->{req_w};
-      $h = _scale $size, $h, $child->{req_h};
+      $x += $child->{c_halign} * $child->{req_w};
+      $y += $child->{c_valign} * $child->{req_h};
 
-      $child->configure ($x, $y, $w, $h);
+      $child->configure (int $x, int $y, $child->{req_w}, $child->{req_h});
    }
 
    1
@@ -1843,21 +1778,23 @@
 
 #############################################################################
 
-package CFPlus::UI::Box;
+package DC::UI::Box;
 
-our @ISA = CFPlus::UI::Container::;
+our @ISA = DC::UI::Container::;
 
 sub size_request {
    my ($self) = @_;
 
+   my @children = $self->visible_children;
+
    $self->{vertical}
       ?  (
-            (List::Util::max map $_->{req_w}, @{$self->{children}}),
-            (List::Util::sum map $_->{req_h}, @{$self->{children}}),
+            (List::Util::max map $_->{req_w}, @children),
+            (List::Util::sum map $_->{req_h}, @children),
          )
       :  (
-            (List::Util::sum map $_->{req_w}, @{$self->{children}}),
-            (List::Util::max map $_->{req_h}, @{$self->{children}}),
+            (List::Util::sum map $_->{req_w}, @children),
+            (List::Util::max map $_->{req_h}, @children),
          )
 }
 
@@ -1888,7 +1825,7 @@
       }
    }
 
-   CFPlus::UI::harmonize \@req;
+   DC::UI::harmonize \@req;
 
    my $pos = 0;
    for (0 .. $#children) {
@@ -1903,9 +1840,9 @@
 
 #############################################################################
 
-package CFPlus::UI::HBox;
+package DC::UI::HBox;
 
-our @ISA = CFPlus::UI::Box::;
+our @ISA = DC::UI::Box::;
 
 sub new {
    my $class = shift;
@@ -1918,9 +1855,9 @@
 
 #############################################################################
 
-package CFPlus::UI::VBox;
+package DC::UI::VBox;
 
-our @ISA = CFPlus::UI::Box::;
+our @ISA = DC::UI::Box::;
 
 sub new {
    my $class = shift;
@@ -1933,11 +1870,11 @@
 
 #############################################################################
 
-package CFPlus::UI::Label;
+package DC::UI::Label;
 
-our @ISA = CFPlus::UI::DrawBG::;
+our @ISA = DC::UI::DrawBG::;
 
-use CFPlus::OpenGL;
+use DC::OpenGL;
 
 sub new {
    my ($class, %arg) = @_;
@@ -1952,7 +1889,7 @@
       #max_w     => maximum pixel width
       #style     => 0, # render flags
       ellipsise  => 3, # end
-      layout     => (new CFPlus::Layout),
+      layout     => (new DC::Layout),
       fontsize   => 1,
       align      => -1,
       valign     => -1,
@@ -1963,7 +1900,7 @@
    );
 
    if (exists $self->{template}) {
-      my $layout = new CFPlus::Layout;
+      my $layout = new DC::Layout;
       $layout->set_text (delete $self->{template});
       $self->{template} = $layout;
    }
@@ -1991,6 +1928,12 @@
    $self->SUPER::realloc;
 }
 
+sub clear {
+   my ($self) = @_;
+
+   $self->set_text ("");
+}
+
 sub set_text {
    my ($self, $text) = @_;
 
@@ -2023,8 +1966,10 @@
    my ($self) = @_;
 
    $self->{size_req} ||= do {
+      my ($max_w, $max_h) = $self->get_max_wh;
+
       $self->{layout}->set_font ($self->{font}) if $self->{font};
-      $self->{layout}->set_width ($self->{max_w} || -1);
+      $self->{layout}->set_width ($self->{max_w} || $max_w || -1);
       $self->{layout}->set_ellipsise ($self->{ellipsise});
       $self->{layout}->set_single_paragraph_mode ($self->{ellipsise});
       $self->{layout}->set_height ($self->{fontsize} * $::FONTSIZE);
@@ -2106,21 +2051,37 @@
       $self->{oy} = int ($self->{valign} < 0 ? $self->{padding_y}
                        : $self->{valign} > 0 ? $self->{h} - $size->[1] - $self->{padding_y}
                        :                       ($self->{h} - $size->[1]) * 0.5);
+
+      $self->{layout}->render ($self->{ox}, $self->{oy}, $self->{style});
    };
 
-   my $w = List::Util::min $self->{w} + 4, $size->[0];
-   my $h = List::Util::min $self->{h} + 2, $size->[1];
+#   unless ($self->{list}) {
+#      $self->{list} = DC::OpenGL::glGenList;
+#      DC::OpenGL::glNewList $self->{list};
+#      $self->{layout}->render ($self->{ox}, $self->{oy}, $self->{style});
+#      DC::OpenGL::glEndList;
+#   }
+#   
+#   DC::OpenGL::glCallList $self->{list};
 
-   $self->{layout}->render ($self->{ox}, $self->{oy}, $self->{style});
+   $self->{layout}->draw;
 }
 
+#sub destroy {
+#   my ($self) = @_;
+#
+#   DC::OpenGL::glDeleteList delete $self->{list} if $self->{list};
+#
+#   $self->SUPER::destroy;
+#}
+
 #############################################################################
 
-package CFPlus::UI::EntryBase;
+package DC::UI::EntryBase;
 
-our @ISA = CFPlus::UI::Label::;
+our @ISA = DC::UI::Label::;
 
-use CFPlus::OpenGL;
+use DC::OpenGL;
 
 sub new {
    my $class = shift;
@@ -2128,8 +2089,10 @@
    $class->SUPER::new (
       fg         => [1, 1, 1],
       bg         => [0, 0, 0, 0.2],
-      active_bg  => [1, 1, 1, 0.5],
-      active_fg  => [0, 0, 0],
+      outline    => [0.6, 0.3, 0.1],
+      active_bg  => [0, 0,  1, .2],
+      active_fg  => [1, 1,  1],
+      active_outline => [1, 1, 0],
       can_hover  => 1,
       can_focus  => 1,
       valign     => 0,
@@ -2195,17 +2158,17 @@
       substr $text, --$self->{cursor}, 1, "" if $self->{cursor};
    } elsif ($uni == 127) {
       substr $text, $self->{cursor}, 1, "";
-   } elsif ($sym == CFPlus::SDLK_LEFT) {
+   } elsif ($sym == DC::SDLK_LEFT) {
       --$self->{cursor} if $self->{cursor};
-   } elsif ($sym == CFPlus::SDLK_RIGHT) {
+   } elsif ($sym == DC::SDLK_RIGHT) {
       ++$self->{cursor} if $self->{cursor} < length $self->{text};
-   } elsif ($sym == CFPlus::SDLK_HOME) {
+   } elsif ($sym == DC::SDLK_HOME) {
       # what a hack
       $self->{cursor} =
          (substr $self->{text}, 0, $self->{cursor}) =~ /^(.*\012)/
             ? length $1
             : 0;
-   } elsif ($sym == CFPlus::SDLK_END) {
+   } elsif ($sym == DC::SDLK_END) {
       # uh, again
       $self->{cursor} =
          (substr $self->{text}, $self->{cursor}) =~ /^([^\012]*)\012/
@@ -2279,12 +2242,7 @@
 
    glEnable GL_BLEND;
    glBlendFunc GL_ONE, GL_ONE_MINUS_SRC_ALPHA;
-   glBegin GL_QUADS;
-   glVertex 0         , 0;
-   glVertex 0         , $self->{h};
-   glVertex $self->{w}, $self->{h};
-   glVertex $self->{w}, 0;
-   glEnd;
+   glRect 0, 0, $self->{w}, $self->{h};
    glDisable GL_BLEND;
 
    $self->SUPER::_draw;
@@ -2296,23 +2254,38 @@
          my $text = substr $self->{text}, 0, $self->{cursor};
          utf8::encode $text;
 
-         @$self{qw(cur_x cur_y cur_h)} = $self->{layout}->cursor_pos (length $text)
+         @$self{qw(cur_x cur_y cur_h)} = $self->{layout}->cursor_pos (length $text);
       }
 
+      glColor_premultiply @{$self->{active_fg}};
       glBegin GL_LINES;
-      glVertex 0.5 + $self->{cur_x} + $self->{ox}, $self->{cur_y} + $self->{oy};
-      glVertex 0.5 + $self->{cur_x} + $self->{ox}, $self->{cur_y} + $self->{oy} + $self->{cur_h};
+      glVertex $self->{cur_x} + $self->{ox} + .5, $self->{cur_y} + $self->{oy};
+      glVertex $self->{cur_x} + $self->{ox} + .5, $self->{cur_y} + $self->{oy} + $self->{cur_h};
+      glEnd;
+
+      glLineWidth 3;
+      glColor @{$self->{active_outline}};
+      glRect_lineloop 1.5, 1.5, $self->{w} - 1.5, $self->{h} - 1.5;
+      glLineWidth 1;
+
+   } else {
+      glColor @{$self->{outline}};
+      glBegin GL_LINE_STRIP;
+      glVertex              .5, $self->{h} *  .5;
+      glVertex              .5, $self->{h} - 2.5;
+      glVertex $self->{w} - .5, $self->{h} - 2.5;
+      glVertex $self->{w} - .5, $self->{h} *  .5;
       glEnd;
    }
 }
 
 #############################################################################
 
-package CFPlus::UI::Entry;
+package DC::UI::Entry;
 
-our @ISA = CFPlus::UI::EntryBase::;
+our @ISA = DC::UI::EntryBase::;
 
-use CFPlus::OpenGL;
+use DC::OpenGL;
 
 sub invoke_key_down {
    my ($self, $ev) = @_;
@@ -2328,7 +2301,7 @@
       $self->emit (activate => $txt);
       $self->update;
 
-   } elsif ($sym == CFPlus::SDLK_UP) {
+   } elsif ($sym == DC::SDLK_UP) {
       if ($self->{history_pointer} < 0) {
          $self->{history_saveback} = $self->get_text;
       }
@@ -2340,7 +2313,7 @@
          $self->set_text ($self->{history}->[$self->{history_pointer}]);
       }
 
-   } elsif ($sym == CFPlus::SDLK_DOWN) {
+   } elsif ($sym == DC::SDLK_DOWN) {
       $self->{history_pointer}--;
       $self->{history_pointer} = -1 if $self->{history_pointer} < 0;
 
@@ -2359,11 +2332,11 @@
 
 #############################################################################
 
-package CFPlus::UI::TextEdit;
+package DC::UI::TextEdit;
 
-our @ISA = CFPlus::UI::EntryBase::;
+our @ISA = DC::UI::EntryBase::;
 
-use CFPlus::OpenGL;
+use DC::OpenGL;
 
 sub move_cursor_ver {
    my ($self, $dy) = @_;
@@ -2385,9 +2358,9 @@
 
    my $sym = $ev->{sym};
 
-   if ($sym == CFPlus::SDLK_UP) {
+   if ($sym == DC::SDLK_UP) {
       $self->move_cursor_ver (-1);
-   } elsif ($sym == CFPlus::SDLK_DOWN) {
+   } elsif ($sym == DC::SDLK_DOWN) {
       $self->move_cursor_ver (+1);
    } else {
       return $self->SUPER::invoke_key_down ($ev)
@@ -2398,14 +2371,63 @@
 
 #############################################################################
 
-package CFPlus::UI::Button;
+package DC::UI::ButtonBin;
+
+our @ISA = DC::UI::Bin::;
+
+use DC::OpenGL;
+
+my @tex =
+      map { new_from_file DC::Texture DC::find_rcfile $_, mipmap => 1 }
+         qw(b1_button_inactive.png b1_button_active.png);
+
+sub new {
+   my $class = shift;
+
+   $class->SUPER::new (
+      can_hover  => 1,
+      align      => 0,
+      valign     => 0,
+      can_events => 1,
+      @_
+   )
+}
+
+sub invoke_button_up {
+   my ($self, $ev, $x, $y) = @_;
+
+   $self->emit ("activate")
+      if $x >= 0 && $x < $self->{w}
+         && $y >= 0 && $y < $self->{h};
+
+   1
+}
+
+sub _draw {
+   my ($self) = @_;
+
+   glEnable GL_TEXTURE_2D;
+   glTexEnv GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE;
+   glColor 0, 0, 0, 1;
+
+   my $tex = $tex[$GRAB == $self];
+   $tex->draw_quad_alpha (0, 0, $self->{w}, $self->{h});
+
+   glDisable GL_TEXTURE_2D;
+
+   $self->SUPER::_draw;
+}
+
+#############################################################################
+
+package DC::UI::Button;
 
-our @ISA = CFPlus::UI::Label::;
+our @ISA = DC::UI::Label::;
 
-use CFPlus::OpenGL;
+use DC::OpenGL;
 
 my @tex =
-      map { new_from_file CFPlus::Texture CFPlus::find_rcfile $_, mipmap => 1 }
+      map { new_from_file DC::Texture DC::find_rcfile $_, mipmap => 1 }
          qw(b1_button_inactive.png b1_button_active.png);
 
 sub new {
@@ -2453,15 +2475,15 @@
 
 #############################################################################
 
-package CFPlus::UI::CheckBox;
+package DC::UI::CheckBox;
 
-our @ISA = CFPlus::UI::DrawBG::;
+our @ISA = DC::UI::DrawBG::;
 
 my @tex =
-      map { new_from_file CFPlus::Texture CFPlus::find_rcfile $_, mipmap => 1 }
+      map { new_from_file DC::Texture DC::find_rcfile $_, mipmap => 1 }
          qw(c1_checkbox_bg.png c1_checkbox_active.png);
 
-use CFPlus::OpenGL;
+use DC::OpenGL;
 
 sub new {
    my $class = shift;
@@ -2511,7 +2533,7 @@
 
    $self->SUPER::_draw;
 
-   glTranslate $self->{padding_x} + 0.375, $self->{padding_y} + 0.375, 0;
+   glTranslate $self->{padding_x}, $self->{padding_y}, 0;
 
    my ($w, $h) = @$self{qw(w h)};
 
@@ -2528,11 +2550,11 @@
 
 #############################################################################
 
-package CFPlus::UI::Image;
+package DC::UI::Image;
 
-our @ISA = CFPlus::UI::Base::;
+our @ISA = DC::UI::Base::;
 
-use CFPlus::OpenGL;
+use DC::OpenGL;
 
 our %texture_cache;
 
@@ -2541,6 +2563,7 @@
 
    my $self = $class->SUPER::new (
       can_events => 0,
+      scale      => 1,
       @_,
    );
 
@@ -2548,9 +2571,9 @@
       or Carp::croak "'path' or 'tex' attributes required";
 
    $self->{tex} ||= $texture_cache{$self->{path}} ||=
-      new_from_file CFPlus::Texture CFPlus::find_rcfile $self->{path}, mipmap => 1;
+      new_from_file DC::Texture DC::find_rcfile $self->{path}, mipmap => 1;
 
-   CFPlus::weaken $texture_cache{$self->{path}};
+   DC::weaken $texture_cache{$self->{path}};
 
    $self->{aspect} ||= $self->{tex}{w} / $self->{tex}{h};
 
@@ -2561,7 +2584,7 @@
    my ($self, $cloning) = @_;
 
    $self->{path}
-      or die "cannot serialise CFPlus::UI::Image on non-loadable images\n";
+      or die "cannot serialise DC::UI::Image on non-loadable images\n";
 
    $self->{path}
 }
@@ -2575,7 +2598,7 @@
 sub size_request {
    my ($self) = @_;
 
-   ($self->{tex}{w}, $self->{tex}{h})
+   (int $self->{tex}{w} * $self->{scale}, int $self->{tex}{h} * $self->{scale})
 }
 
 sub _draw {
@@ -2595,18 +2618,18 @@
    glEnable GL_TEXTURE_2D;
    glTexEnv GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE;
 
-   $tex->draw_quad (0, 0, $w, $h);
+   $tex->draw_quad_alpha (0, 0, $w, $h);
 
    glDisable GL_TEXTURE_2D;
 }
 
 #############################################################################
 
-package CFPlus::UI::ImageButton;
+package DC::UI::ImageButton;
 
-our @ISA = CFPlus::UI::Image::;
+our @ISA = DC::UI::Image::;
 
-use CFPlus::OpenGL;
+use DC::OpenGL;
 
 my %textures;
 
@@ -2626,6 +2649,12 @@
    );
 }
 
+sub invoke_button_down {
+   my ($self, $ev, $x, $y) = @_;
+
+   1
+}
+
 sub invoke_button_up {
    my ($self, $ev, $x, $y) = @_;
 
@@ -2638,29 +2667,29 @@
 
 #############################################################################
 
-package CFPlus::UI::VGauge;
+package DC::UI::VGauge;
 
-our @ISA = CFPlus::UI::Base::;
+our @ISA = DC::UI::Base::;
 
 use List::Util qw(min max);
 
-use CFPlus::OpenGL;
+use DC::OpenGL;
 
 my %tex = (
    food => [
-      map { new_from_file CFPlus::Texture CFPlus::find_rcfile $_, mipmap => 1 }
+      map { new_from_file DC::Texture DC::find_rcfile $_, mipmap => 1 }
          qw/g1_food_gauge_empty.png g1_food_gauge_full.png/
    ],
    grace => [
-      map { new_from_file CFPlus::Texture CFPlus::find_rcfile $_, mipmap => 1 }
+      map { new_from_file DC::Texture DC::find_rcfile $_, mipmap => 1 }
          qw/g1_grace_gauge_empty.png g1_grace_gauge_full.png g1_grace_gauge_overflow.png/
    ],
    hp => [
-      map { new_from_file CFPlus::Texture CFPlus::find_rcfile $_, mipmap => 1 }
+      map { new_from_file DC::Texture DC::find_rcfile $_, mipmap => 1 }
          qw/g1_hp_gauge_empty.png g1_hp_gauge_full.png/
    ],
    mana => [
-      map { new_from_file CFPlus::Texture CFPlus::find_rcfile $_, mipmap => 1 }
+      map { new_from_file DC::Texture DC::find_rcfile $_, mipmap => 1 }
          qw/g1_mana_gauge_empty.png g1_mana_gauge_full.png g1_mana_gauge_overflow.png/
    ],
 );
@@ -2773,9 +2802,147 @@
 
 #############################################################################
 
-package CFPlus::UI::Gauge;
+package DC::UI::Progress;
+
+our @ISA = DC::UI::Label::;
+
+use DC::OpenGL;
+
+sub new {
+   my ($class, %arg) = @_;
+
+   my $self = $class->SUPER::new (
+      fg         => [1, 1, 1],
+      bg         => [0, 0, 1, 0.2],
+      bar        => [0.7, 0.5, 0.1, 0.8],
+      outline    => [0.4, 0.3, 0],
+      fontsize   => 0.9,
+      valign     => 0,
+      align      => 0,
+      can_events => 1,
+      ellipsise  => 1,
+      label      => "%d%%",
+      %arg,
+   );
+
+   $self->set_value ($arg{value} || -1);
+
+   $self
+}
+
+sub set_label {
+   my ($self, $label) = @_;
+
+   return if $self->{label} eq $label;
+   $self->{label} = $label;
+
+   $self->DC::UI::Progress::set_value (0 + delete $self->{value});
+}
+
+sub set_value {
+   my ($self, $value) = @_;
+
+   if ($self->{value} ne $value) {
+      $self->{value} = $value;
+
+      if ($value < 0) {
+         $self->set_text ("-");
+      } else {
+         $self->set_text (sprintf $self->{label}, $value * 100);
+      }
+
+      $self->update;
+   }
+}
+
+sub _draw {
+   my ($self) = @_;
+
+   glEnable GL_BLEND;
+   glBlendFunc GL_ONE, GL_ONE_MINUS_SRC_ALPHA;
+
+   if ($self->{value} >= 0) {
+      my $s = int 2 + ($self->{w} - 4) * $self->{value};
+
+      glColor_premultiply @{$self->{bar}};
+      glRect  2, 2,             $s, $self->{h} - 2;
+      glColor_premultiply @{$self->{bg}};
+      glRect $s, 2, $self->{w} - 2, $self->{h} - 2;
+   }
+
+   glColor_premultiply @{$self->{outline}};
+   glRect_lineloop 1.5, 1.5, $self->{w} - 1.5, $self->{h} - 1.5;
+
+   glDisable GL_BLEND;
+
+   {
+      local $self->{bg}; # do not draw background
+      $self->SUPER::_draw;
+   }
+}
+
+#############################################################################
+
+package DC::UI::ExperienceProgress;
+
+our @ISA = DC::UI::Progress::;
+
+sub new {
+   my ($class, %arg) = @_;
+
+   my $self = $class->SUPER::new (
+      tooltip => sub {
+         my ($self) = @_;
+
+         sprintf "level %d\n%s points\n%s next level\n%s to go",
+            $self->{lvl},
+            ::formsep ($self->{exp}),
+            ::formsep ($self->{nxt}),
+            ::formsep ($self->{nxt} - $self->{exp}),
+      },
+      %arg
+   );
+
+   $::CONN->{on_exp_update}{$self+0} = sub { $self->set_value ($self->{value}) }
+      if $::CONN;
+
+   $self
+}
+
+sub DESTROY {
+   my ($self) = @_;
+
+   delete $::CONN->{on_exp_update}{$self+0}
+      if $::CONN;
+
+   $self->SUPER::DESTROY;
+}
+
+sub set_value {
+   my ($self, $lvl, $exp) = @_;
+
+   $self->{lvl} = $lvl;
+   $self->{exp} = $exp;
+
+   my $v = -1;
+
+   if ($::CONN && (my $table = $::CONN->{exp_table})) {
+      my $l0 = $table->[$lvl - 1];
+      my $l1 = $table->[$lvl];
+
+      $self->{nxt} = $l1;
+
+      $v = ($exp - $l0) / ($l1 - $l0);
+   }
+
+   $self->SUPER::set_value ($v);
+}
+
+#############################################################################
+
+package DC::UI::Gauge;
 
-our @ISA = CFPlus::UI::VBox::;
+our @ISA = DC::UI::VBox::;
 
 sub new {
    my ($class, %arg) = @_;
@@ -2787,9 +2954,9 @@
       %arg,
    );
 
-   $self->add ($self->{value} = new CFPlus::UI::Label valign => +1, align => 0, template => "999");
-   $self->add ($self->{gauge} = new CFPlus::UI::VGauge type => $self->{type}, expand => 1, can_hover => 1);
-   $self->add ($self->{max}   = new CFPlus::UI::Label valign => -1, align => 0, template => "999");
+   $self->add ($self->{value} = new DC::UI::Label valign => +1, align => 0, template => "999");
+   $self->add ($self->{gauge} = new DC::UI::VGauge type => $self->{type}, expand => 1, can_hover => 1);
+   $self->add ($self->{max}   = new DC::UI::Label valign => -1, align => 0, template => "999");
 
    $self
 }
@@ -2820,16 +2987,16 @@
 
 #############################################################################
 
-package CFPlus::UI::Slider;
+package DC::UI::Slider;
 
 use strict;
 
-use CFPlus::OpenGL;
+use DC::OpenGL;
 
-our @ISA = CFPlus::UI::DrawBG::;
+our @ISA = DC::UI::DrawBG::;
 
 my @tex =
-      map { new_from_file CFPlus::Texture CFPlus::find_rcfile $_ }
+      map { new_from_file DC::Texture DC::find_rcfile $_ }
          qw(s1_slider.png s1_slider_bg.png);
 
 sub new {
@@ -2907,7 +3074,9 @@
 
    $self->{click} = [$self->{range}[0], $self->{vertical} ? $y : $x];
    
-   $self->invoke_mouse_motion ($ev, $x, $y)
+   $self->invoke_mouse_motion ($ev, $x, $y);
+
+   1
 }
 
 sub invoke_mouse_motion {
@@ -2933,11 +3102,11 @@
 
    my $delta = $self->{vertical} ? $ev->{dy} : $ev->{dx};
 
-   my $pagepart = $ev->{mod} & CFPlus::KMOD_SHIFT ? 1 : 0.2;
+   my $pagepart = $ev->{mod} & DC::KMOD_SHIFT ? 1 : 0.2;
 
    $self->set_value ($self->{range}[0] + $delta * $self->{range}[3] * $pagepart);
 
-   ! ! $delta
+   1
 }
 
 sub update {
@@ -2996,9 +3165,9 @@
 
 #############################################################################
 
-package CFPlus::UI::ValSlider;
+package DC::UI::ValSlider;
 
-our @ISA = CFPlus::UI::HBox::;
+our @ISA = DC::UI::HBox::;
 
 sub new {
    my ($class, %arg) = @_;
@@ -3006,8 +3175,8 @@
    my $range = delete $arg{range};
 
    my $self = $class->SUPER::new (
-      slider     => (new CFPlus::UI::Slider expand => 1, range => $range),
-      entry      => (new CFPlus::UI::Label text => "", template => delete $arg{template}),
+      slider     => (new DC::UI::Slider expand => 1, range => $range),
+      entry      => (new DC::UI::Label text => "", template => delete $arg{template}),
       to_value   => sub { shift },
       from_value => sub { shift },
       %arg,
@@ -3037,11 +3206,11 @@
 
 #############################################################################
 
-package CFPlus::UI::TextScroller;
+package DC::UI::TextScroller;
 
-our @ISA = CFPlus::UI::HBox::;
+our @ISA = DC::UI::HBox::;
 
-use CFPlus::OpenGL;
+use DC::OpenGL;
 
 sub new {
    my $class = shift;
@@ -3053,13 +3222,13 @@
       #font      => default_font
       @_,
                  
-      layout     => (new CFPlus::Layout),
+      layout     => (new DC::Layout),
       par        => [],
       max_par    => 0,
       height     => 0,
       children   => [
-         (new CFPlus::UI::Empty expand => 1),
-         (new CFPlus::UI::Slider vertical => 1),
+         (new DC::UI::Empty expand => 1),
+         (new DC::UI::Slider vertical => 1),
       ],
    );
 
@@ -3078,7 +3247,7 @@
 sub size_request {
    my ($self) = @_;
 
-   my ($empty, $slider) = @{ $self->{children} };
+   my ($empty, $slider) = $self->visible_children;
 
    local $self->{children} = [$empty, $slider];
    $self->SUPER::size_request
@@ -3252,11 +3421,11 @@
 
       my ($W, $H) = @{$self->{children}[0]}{qw(w h)};
 
-      $self->{texture} ||= new_from_opengl CFPlus::Texture $W, $H, sub {
+      $self->{texture} ||= new_from_opengl DC::Texture $W, $H, sub {
          glClearColor 0, 0, 0, 0;
          glClear GL_COLOR_BUFFER_BIT;
 
-         package CFPlus::UI::Base;
+         package DC::UI::Base;
          local ($draw_x, $draw_y, $draw_w, $draw_h) =
             (0, 0, $self->{w}, $self->{h});
 
@@ -3277,6 +3446,7 @@
                my $layout = $self->get_layout ($para);
 
                $layout->render ($para->{indent}, $y - $y0);
+               $layout->draw;
 
                if (my @w = @{ $para->{widget} }) {
                   my @s = $layout->get_shapes;
@@ -3324,11 +3494,11 @@
 
 #############################################################################
 
-package CFPlus::UI::Animator;
+package DC::UI::Animator;
 
-use CFPlus::OpenGL;
+use DC::OpenGL;
 
-our @ISA = CFPlus::UI::Bin::;
+our @ISA = DC::UI::Bin::;
 
 sub moveto {
    my ($self, $x, $y) = @_;
@@ -3366,9 +3536,9 @@
 
 #############################################################################
 
-package CFPlus::UI::Flopper;
+package DC::UI::Flopper;
 
-our @ISA = CFPlus::UI::Button::;
+our @ISA = DC::UI::Button::;
 
 sub new {
    my $class = shift;
@@ -3390,11 +3560,11 @@
 
 #############################################################################
 
-package CFPlus::UI::Tooltip;
+package DC::UI::Tooltip;
 
-our @ISA = CFPlus::UI::Bin::;
+our @ISA = DC::UI::Bin::;
 
-use CFPlus::OpenGL;
+use DC::OpenGL;
 
 sub new {
    my $class = shift;
@@ -3408,23 +3578,24 @@
 sub set_tooltip_from {
    my ($self, $widget) = @_;
 
-   $widget->{tooltip} = CFPlus::Pod::section_label tooltip => $1
-      if $widget->{tooltip} =~ /^#(.*)$/;
-
-   my $tooltip = $widget->{tooltip};
+   my $tip = $widget->{tooltip};
+   $tip = $tip->($widget) if "CODE" eq ref $tip;
+               
+   $tip = DC::Pod::section_label tooltip => $1
+      if $tip =~ /^#(.*)$/;
 
    if ($ENV{CFPLUS_DEBUG} & 2) {
-      $tooltip .= "\n\n" . (ref $widget) . "\n"
-                . "$widget->{x} $widget->{y} $widget->{w} $widget->{h}\n"
-                . "req $widget->{req_w} $widget->{req_h}\n"
-                . "visible $widget->{visible}";
+      $tip .= "\n\n" . (ref $widget) . "\n"
+            . "$widget->{x} $widget->{y} $widget->{w} $widget->{h}\n"
+            . "req $widget->{req_w} $widget->{req_h}\n"
+            . "visible $widget->{visible}";
    }
 
-   $tooltip =~ s/^\n+//;
-   $tooltip =~ s/\n+$//;
+   $tip =~ s/^\n+//;
+   $tip =~ s/\n+$//;
 
-   $self->add (new CFPlus::UI::Label
-      markup    => $tooltip,
+   $self->add (new DC::UI::Label
+      markup    => $tip,
       max_w     => ($widget->{tooltip_width} || 0.25) * $::WIDTH,
       fontsize  => 0.8,
       style     => 1, # FLAG_INVERSE
@@ -3472,38 +3643,26 @@
 sub _draw {
    my ($self) = @_;
 
-   glTranslate 0.375, 0.375;
-
    my ($w, $h) = @$self{qw(w h)};
 
    glColor 1, 0.8, 0.4;
-   glBegin GL_QUADS;
-   glVertex 0 , 0;
-   glVertex 0 , $h;
-   glVertex $w, $h;
-   glVertex $w, 0;
-   glEnd;
+   glRect 0, 0, $w, $h;
    
    glColor 0, 0, 0;
-   glBegin GL_LINE_LOOP;
-   glVertex 0 , 0;
-   glVertex 0 , $h;
-   glVertex $w, $h;
-   glVertex $w, 0;
-   glEnd;
+   glRect_lineloop .5, .5, $w + .5, $h + .5;
    
-   glTranslate 2 - 0.375, 2 - 0.375;
+   glTranslate 2, 2;
 
    $self->SUPER::_draw;
 }
 
 #############################################################################
 
-package CFPlus::UI::Face;
+package DC::UI::Face;
 
-our @ISA = CFPlus::UI::DrawBG::;
+our @ISA = DC::UI::DrawBG::;
 
-use CFPlus::OpenGL;
+use DC::OpenGL;
 
 sub new {
    my $class = shift;
@@ -3517,22 +3676,22 @@
    );
 
    if ($self->{anim} && $self->{animspeed}) {
-      CFPlus::weaken (my $widget = $self);
+      DC::weaken (my $widget = $self);
 
-      $widget->{animspeed} = List::Util::max 0.05, $widget->{animspeed};
-      $widget->{anim_start} = $self->{animspeed} * Event::time / $self->{animspeed};
-      $self->{timer} = Event->timer (
-         parked   => 1,
-         cb       => sub {
-            return unless $::CONN && $widget;
-
-            ++$widget->{frame};
-            $widget->update_face;
-            $widget->update;
+      $self->{animspeed} = List::Util::max 0.05, $self->{animspeed};
+      $self->{timer} = EV::periodic_ns 0, $self->{animspeed}, undef, sub {
+         return unless $::CONN;
 
-            $widget->update_timer;
-         },
-      );
+         my $w = $widget
+            or return;
+
+         ++$w->{frame};
+         $w->update_face;
+
+         # somehow, $widget can go away
+         $w->update;
+         $w->update_timer;
+      };
 
       $self->update_face;
       $self->update_timer;
@@ -3547,11 +3706,6 @@
    return unless $self->{timer};
 
    if ($self->{visible}) {
-      $self->{timer}->at (
-         $self->{anim_start}
-         + $self->{animspeed}
-           * int 1.5 + (Event::time - $self->{anim_start}) / $self->{animspeed}
-      );
       $self->{timer}->start;
    } else {
       $self->{timer}->stop;
@@ -3561,12 +3715,18 @@
 sub update_face {
    my ($self) = @_;
 
-   return unless $::CONN;
-
-   if (my $anim = $::CONN->{anim}[$self->{anim}]) {
-      if ($anim && @$anim) {
-         delete $self->{wait_face};
-         $self->{face} = $anim->[ $self->{frame} % @$anim ];
+   if ($::CONN) {
+      if (my $anim = $::CONN->{anim}[$self->{anim}]) {
+         if ($anim && @$anim) {
+            $self->{face} = $anim->[ $self->{frame} % @$anim ];
+            delete $self->{face_change_cb};
+
+            if (my $tex = $self->{tex} = $::CONN->{texture}[ $::CONN->{face}[$self->{face}]{id} ]) {
+               unless ($tex->{name} || $tex->{loading}) {
+                  $tex->upload (sub { $self->reconfigure });
+               }
+            }
+         }
       }
    }
 }
@@ -3575,14 +3735,16 @@
    my ($self) = @_;
 
    if ($::CONN) {
-      if (my $faceid = $::CONN->{faceid}[$self->{face}]) {
-         if (my $tex = $::CONN->{texture}[$faceid]) {
-            return ($self->{size_w} || $tex->{w}, $self->{size_h} || $tex->{h});
-         } else {
-            $self->{wait_face} ||= $::CONN->connect_face_update ($faceid, sub {
-               $self->realloc;
-            });
+      if (my $faceid = $::CONN->{face}[$self->{face}]{id}) {
+         if (my $tex = $self->{tex} = $::CONN->{texture}[$faceid]) {
+            if ($tex->{name}) {
+               return ($self->{size_w} || $tex->{w}, $self->{size_h} || $tex->{h});
+            } elsif (!$tex->{loading}) {
+               $tex->upload (sub { $self->reconfigure });
+            }
          }
+
+         $self->{face_change_cb} ||= $::CONN->on_face_change ($self->{face}, sub { $self->reconfigure });
       }
    }
 
@@ -3608,16 +3770,9 @@
 sub _draw {
    my ($self) = @_;
 
-   return unless $::CONN;
-
    $self->SUPER::_draw;
 
-   my $faceid = $::CONN->{faceid}[$self->{face}]
-      or return;
-   
-   my $tex = $::CONN->{texture}[$faceid];
-
-   if ($tex) {
+   if (my $tex = $self->{tex}) {
       glEnable GL_TEXTURE_2D;
       glTexEnv GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE;
       glColor 0, 0, 0, 1;
@@ -3637,19 +3792,19 @@
 
 #############################################################################
 
-package CFPlus::UI::Buttonbar;
+package DC::UI::Buttonbar;
 
-our @ISA = CFPlus::UI::HBox::;
+our @ISA = DC::UI::HBox::;
 
 # TODO: should actually wrap buttons and other goodies.
 
 #############################################################################
 
-package CFPlus::UI::Menu;
+package DC::UI::Menu;
 
-our @ISA = CFPlus::UI::Toplevel::;
+our @ISA = DC::UI::Toplevel::;
 
-use CFPlus::OpenGL;
+use DC::OpenGL;
 
 sub new {
    my $class = shift;
@@ -3660,7 +3815,7 @@
       @_,
    );
 
-   $self->add ($self->{vbox} = new CFPlus::UI::VBox);
+   $self->add ($self->{vbox} = new DC::UI::VBox);
 
    for my $item (@{ $self->{items} }) {
       my ($widget, $cb, $tooltip) = @$item;
@@ -3670,18 +3825,18 @@
          if ($widget =~ /\t/) {
             my ($left, $right) = split /\t/, $widget, 2;
 
-            $widget = new CFPlus::UI::HBox
+            $widget = new DC::UI::HBox
                can_hover  => 1,
                can_events => 1,
                tooltip    => $tooltip,
                children   => [
-                  (new CFPlus::UI::Label markup => $left, expand => 1),
-                  (new CFPlus::UI::Label markup => $right, align => +1),
+                  (new DC::UI::Label markup => $left, expand => 1),
+                  (new DC::UI::Label markup => $right, align => +1),
                ],
             ;
-               
+
          } else {
-            $widget = new CFPlus::UI::Label
+            $widget = new DC::UI::Label
                can_hover  => 1,
                can_events => 1,
                markup     => $widget,
@@ -3739,9 +3894,9 @@
 
 #############################################################################
 
-package CFPlus::UI::Multiplexer;
+package DC::UI::Multiplexer;
 
-our @ISA = CFPlus::UI::Container::;
+our @ISA = DC::UI::Container::;
 
 sub new {
    my $class = shift;
@@ -3812,38 +3967,87 @@
 
 #############################################################################
 
-package CFPlus::UI::Notebook;
+package DC::UI::Notebook;
+
+use DC::OpenGL;
 
-our @ISA = CFPlus::UI::VBox::;
+our @ISA = DC::UI::VBox::;
 
 sub new {
    my $class = shift;
 
    my $self = $class->SUPER::new (
-      buttonbar   => (new CFPlus::UI::Buttonbar),
-      multiplexer => (new CFPlus::UI::Multiplexer expand => 1),
+      buttonbar      => (new DC::UI::Buttonbar),
+      multiplexer    => (new DC::UI::Multiplexer expand => 1),
+      active_outline => [.7, .7, 0.2],
       # filter => # will be put between multiplexer and $self
       @_,
    );
-   
+
    $self->{filter}->add ($self->{multiplexer}) if $self->{filter};
    $self->SUPER::add ($self->{buttonbar}, $self->{filter} || $self->{multiplexer});
 
+   {
+      Scalar::Util::weaken (my $wself = $self);
+
+      $self->{multiplexer}->connect (c_add => sub {
+         my ($mplex, $widgets) = @_;
+
+         for my $child (@$widgets) {
+            Scalar::Util::weaken $child;
+            $child->{c_tab_} ||= do {
+               my $tab =
+                  (UNIVERSAL::isa $child->{c_tab}, "DC::UI::Base")
+                     ? $child->{c_tab}
+                     : new DC::UI::Button markup => $child->{c_tab}[0], tooltip => $child->{c_tab}[1];
+
+               $tab->connect (activate => sub {
+                  $wself->set_current_page ($child);
+               });
+
+               $tab
+            };
+
+            $self->{buttonbar}->add ($child->{c_tab_});
+         }
+      });
+
+      $self->{multiplexer}->connect (c_remove => sub {
+         my ($mplex, $widgets) = @_;
+
+         for my $child (@$widgets) {
+            $wself->{buttonbar}->remove ($child->{c_tab_});
+         }
+      });
+   }
+
    $self
 }
 
 sub add {
-   my ($self, $title, $widget, $tooltip) = @_;
+   my ($self, @widgets) = @_;
 
-   CFPlus::weaken $self;
+   $self->{multiplexer}->add (@widgets)
+}
 
-   $self->{buttonbar}->add (new CFPlus::UI::Button
-      markup      => $title,
-      tooltip     => $tooltip,
-      on_activate => sub { $self->set_current_page ($widget) },
-   );
+sub remove {
+   my ($self, @widgets) = @_;
+
+   $self->{multiplexer}->remove (@widgets)
+}
+
+sub pages {
+   my ($self) = @_;
+   $self->{multiplexer}->children
+}
+
+sub add_tab {
+   my ($self, $title, $widget, $tooltip) = @_;
+
+   $title = [$title, $tooltip] unless ref $title;
+   $widget->{c_tab} = $title;
 
-   $self->{multiplexer}->add ($widget);
+   $self->add ($widget);
 }
 
 sub get_current_page {
@@ -3859,13 +4063,33 @@
    $self->emit (page_changed => $self->{multiplexer}{current});
 }
 
+sub _draw {
+   my ($self) = @_;
+
+   $self->SUPER::_draw ();
+
+   if (my $cur = $self->{multiplexer}{current}) {
+      if ($cur = $cur->{c_tab_}) {
+         glTranslate $self->{buttonbar}{x} + $cur->{x},
+                     $self->{buttonbar}{y} + $cur->{y};
+         glLineWidth 3;
+         #glEnable GL_BLEND;
+         #glBlendFunc GL_ONE, GL_ONE_MINUS_SRC_ALPHA;
+         glColor @{$self->{active_outline}};
+         glRect_lineloop 1.5, 1.5, $cur->{w} - 1.5, $cur->{h} - 1.5;
+         glLineWidth 1;
+         #glDisable GL_BLEND;
+      }
+   }
+}
+
 #############################################################################
 
-package CFPlus::UI::Selector;
+package DC::UI::Selector;
 
 use utf8;
 
-our @ISA = CFPlus::UI::Button::;
+our @ISA = DC::UI::Button::;
 
 sub new {
    my $class = shift;
@@ -3892,18 +4116,19 @@
       push @menu_items, [$tooltip || $title, sub { $self->set_value ($value) }];
    }
 
-   CFPlus::UI::Menu->new (items => \@menu_items)->popup ($ev);
+   DC::UI::Menu->new (items => \@menu_items)->popup ($ev);
 }
 
 sub _set_value {
    my ($self, $value) = @_;
 
-   my ($item) = grep $_->[0] eq $value, @{ $self->{options} }
+   my ($item) = grep $_->[0] eq $value, @{ $self->{options} };
+   $item ||= $self->{options}[0]
       or return;
 
    $self->{value} = $item->[0];
    $self->set_markup ("$item->[1] ⇓");
-   $self->set_tooltip ($item->[2]);
+#   $self->set_tooltip ($item->[2]);
 }
 
 sub set_value {
@@ -3915,11 +4140,18 @@
    $self->emit (changed => $value);
 }
 
+sub set_options {
+   my ($self, $options) = @_;
+
+   $self->{options} = $options;
+   $self->_set_value ($self->{value});
+}
+
 #############################################################################
 
-package CFPlus::UI::Statusbox;
+package DC::UI::Statusbox;
 
-our @ISA = CFPlus::UI::VBox::;
+our @ISA = DC::UI::VBox::;
 
 sub new {
    my $class = shift;
@@ -3929,9 +4161,9 @@
       @_,
    );
 
-   CFPlus::weaken (my $this = $self);
+   DC::weaken (my $this = $self);
 
-   $self->{timer} = Event->timer (after => 1, interval => 1, cb => sub { $this->reorder });
+   $self->{timer} = EV::timer 1, 1, sub { $this->reorder };
 
    $self
 }
@@ -3941,14 +4173,16 @@
    my $NOW = Time::HiRes::time;
 
    # freeze display when hovering over any label
-   return if $CFPlus::UI::TOOLTIP->{owner}
-             && grep $CFPlus::UI::TOOLTIP->{owner} == $_->{label},
+   return if $DC::UI::TOOLTIP->{owner}
+             && grep $DC::UI::TOOLTIP->{owner} == $_->{label},
                    values %{ $self->{item} };
 
    while (my ($k, $v) = each %{ $self->{item} }) {
       delete $self->{item}{$k} if $v->{timeout} < $NOW;
    }
 
+   $self->{timer}->set (1, 1);
+
    my @widgets;
 
    my @items = sort {
@@ -3956,8 +4190,6 @@
                      or $b->{id} <=> $a->{id}
                } values %{ $self->{item} };
 
-   $self->{timer}->interval (1);
-
    my $count = 10 + 1;
    for my $item (@items) {
       last unless --$count;
@@ -3973,7 +4205,7 @@
             s/\s+/ /g;
          }
 
-         new CFPlus::UI::Label
+         new DC::UI::Label
             markup        => $short,
             tooltip       => $item->{tooltip},
             tooltip_font  => $::FONT_PROP,
@@ -3990,7 +4222,7 @@
          $label->update;
          $label->set_max_size (undef, $label->{req_h} * $diff)
             if $diff < 1;
-         $self->{timer}->interval (1/30);
+         $self->{timer}->set (1/30, 1/30);
       } else {
          $label->{fg}[3] = $item->{fg}[3] || 1;
       }
@@ -4062,13 +4294,13 @@
 
 #############################################################################
 
-package CFPlus::UI::Root;
+package DC::UI::Root;
 
-our @ISA = CFPlus::UI::Container::;
+our @ISA = DC::UI::Container::;
 
 use List::Util qw(min max);
 
-use CFPlus::OpenGL;
+use DC::OpenGL;
 
 sub new {
    my $class = shift;
@@ -4078,7 +4310,7 @@
       @_,
    );
 
-   CFPlus::weaken ($self->{root} = $self);
+   DC::weaken ($self->{root} = $self);
 
    $self
 }
@@ -4136,7 +4368,7 @@
 sub update {
    my ($self) = @_;
 
-   $::WANT_REFRESH++;
+   $::WANT_REFRESH = 1;
 }
 
 sub add {
@@ -4183,7 +4415,7 @@
          for values %{delete $self->{refresh_hook}};
    }
 
-   if ($self->{realloc}) {
+   while ($self->{realloc}) {
       my %queue;
       my @queue;
       my $widget;
@@ -4240,40 +4472,37 @@
 
          delete $self->{realloc}{$widget+0};
        }
-   }
 
-   while (my $size_alloc = delete $self->{size_alloc}) {
-      my @queue = sort { $b->{visible} <=> $a->{visible} }
-                       values %$size_alloc;
+      while (my $size_alloc = delete $self->{size_alloc}) {
+         my @queue = sort { $a->{visible} <=> $b->{visible} }
+                          values %$size_alloc;
 
-      while () {
-         my $widget = pop @queue || last;
-
-         my ($w, $h) = @$widget{qw(alloc_w alloc_h)};
+         while () {
+            my $widget = pop @queue || last;
 
-         $w = 0 if $w < 0;
-         $h = 0 if $h < 0;
+            my ($w, $h) = @$widget{qw(alloc_w alloc_h)};
 
-         $w = max $widget->{min_w}, $w;
-         $h = max $widget->{min_h}, $h;
+            $w = max $widget->{min_w}, $w;
+            $h = max $widget->{min_h}, $h;
 
 #         $w = min $self->{w} - $widget->{x}, $w if $self->{w};
 #         $h = min $self->{h} - $widget->{y}, $h if $self->{h};
 
-         $w = min $widget->{max_w}, $w if exists $widget->{max_w};
-         $h = min $widget->{max_h}, $h if exists $widget->{max_h};
+            $w = min $widget->{max_w}, $w if exists $widget->{max_w};
+            $h = min $widget->{max_h}, $h if exists $widget->{max_h};
 
-         $w = int $w + 0.5;
-         $h = int $h + 0.5;
+            $w = int $w + 0.5;
+            $h = int $h + 0.5;
 
-         if ($widget->{w} != $w || $widget->{h} != $h || delete $widget->{force_size_alloc}) {
-            $widget->{old_w} = $widget->{w};
-            $widget->{old_h} = $widget->{h};
+            if ($widget->{w} != $w || $widget->{h} != $h || delete $widget->{force_size_alloc}) {
+               $widget->{old_w} = $widget->{w};
+               $widget->{old_h} = $widget->{h};
 
-            $widget->{w} = $w;
-            $widget->{h} = $h;
+               $widget->{w} = $w;
+               $widget->{h} = $h;
 
-            $widget->emit (size_allocate => $w, $h);
+               $widget->emit (size_allocate => $w, $h);
+            }
          }
       }
    }
@@ -4294,7 +4523,7 @@
    glLoadIdentity;
 
    {
-      package CFPlus::UI::Base;
+      package DC::UI::Base;
 
       local ($draw_x, $draw_y, $draw_w, $draw_h) =
          (0, 0, $self->{w}, $self->{h});
@@ -4305,10 +4534,10 @@
 
 #############################################################################
 
-package CFPlus::UI;
+package DC::UI;
 
-$ROOT = new CFPlus::UI::Root;
-$TOOLTIP = new CFPlus::UI::Tooltip z => 900;
+$ROOT = new DC::UI::Root;
+$TOOLTIP = new DC::UI::Tooltip z => 900;
 
 1