--- deliantra/Deliantra-Client/DC/UI.pm	2007/07/21 14:01:35	1.397
+++ deliantra/Deliantra-Client/DC/UI.pm	2007/07/24 19:32:21	1.419
@@ -275,7 +275,7 @@
 }
 
 sub TO_JSON {
-   { __widget_ref__ => $_[0]{s_id} }
+   { __w_ => $_[0]{s_id} }
 }
 
 sub show {
@@ -595,52 +595,8 @@
 # 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) = @_;
@@ -648,7 +604,6 @@
    warn "no draw defined for $self\n";
 }
 
-my $cntx;#d#
 sub DESTROY {
    my ($self) = @_;
 
@@ -771,6 +726,10 @@
    ];
 
    $self->realloc;
+
+   $self->emit (c_add => \@widgets);
+
+   map $_+0, @widgets
 }
 
 sub children {
@@ -778,12 +737,15 @@
 }
 
 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} } ];
+   }
 
    $self->realloc;
 }
@@ -821,7 +783,7 @@
 sub _draw {
    my ($self) = @_;
 
-   $_->draw for @{$self->{children}};
+   $_->draw for $self->visible_children;
 }
 
 #############################################################################
@@ -841,7 +803,7 @@
 sub add {
    my ($self, $child) = @_;
 
-   $self->SUPER::remove ($_) for @{ $self->{children} };
+   $self->clear;
    $self->SUPER::add ($child);
 }
 
@@ -996,6 +958,24 @@
    }
 }
 
+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) = @_;
@@ -1095,6 +1075,11 @@
 
          0
       },
+      on_size_allocate => sub {
+         my ($vp, $w, $h) = @_;
+         $vp->{parent}->update_slider;
+         0
+      },
    ;
 
    $self->SUPER::add ($self->{vp});
@@ -1110,33 +1095,40 @@
    $self->{vp}->add ($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}) {
-      $self->{hslider_visible} = $visible;
-      $visible ? $self->SUPER::add ($self->{hslider})
-               : $self->SUPER::remove ($self->{hslider});
-   }
-
-   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}) {
-      $self->{vslider_visible} = $visible;
-      $visible ? $self->SUPER::add ($self->{vslider})
-               : $self->SUPER::remove ($self->{vslider});
+   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 start_dragging {
    my ($self, $ev) = @_;
 
@@ -1158,8 +1150,8 @@
 sub invoke_mouse_wheel {
    my ($self, $ev) = @_;
 
-   $self->{vslider}->emit (mouse_wheel => $ev);
-   $self->{hslider}->emit (mouse_wheel => $ev);
+   $self->{vslider}->emit (mouse_wheel => $ev) if $self->{vslider_visible};
+   $self->{hslider}->emit (mouse_wheel => $ev) if $self->{hslider_visible};
 
    1
 }
@@ -1167,9 +1159,12 @@
 sub invoke_button_down {
    my ($self, $ev, $x, $y) = @_;
 
-   $self->start_dragging ($ev);
+   if ($ev->{button} == 2) {
+      $self->start_dragging ($ev);
+      return 1;
+   }
 
-   1
+   0
 }
 
 sub invoke_button_up {
@@ -1720,19 +1715,10 @@
 
 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);
-}
-
 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 {
@@ -1742,14 +1728,12 @@
 
    # determine overall size by querying abs widgets
    for my $child ($self->visible_children) {
-      my ($pos, $x, $y, $size, $w, $h) = @{ $child->{_fixed} };
+      unless ($child->{c_rel}) {
+         my $x = $child->{c_x};
+         my $y = $child->{c_y};
 
-      if ($pos eq "abs") {
-         $w = _scale $size, $w, $child->{req_w};
-         $h = _scale $size, $h, $child->{req_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};
       }
    }
 
@@ -1758,16 +1742,12 @@
 
    # 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};
       }
    }
 
@@ -1781,14 +1761,13 @@
    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
@@ -1803,14 +1782,16 @@
 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),
          )
 }
 
@@ -2061,12 +2042,26 @@
                        :                       ($self->{h} - $size->[1]) * 0.5);
    };
 
-   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} = CFPlus::OpenGL::glGenList;
+#      CFPlus::OpenGL::glNewList $self->{list};
+#      $self->{layout}->render ($self->{ox}, $self->{oy}, $self->{style});
+#      CFPlus::OpenGL::glEndList;
+#   }
+#   
+#   CFPlus::OpenGL::glCallList $self->{list};
 
    $self->{layout}->render ($self->{ox}, $self->{oy}, $self->{style});
 }
 
+#sub destroy {
+#   my ($self) = @_;
+#
+#   CFPlus::OpenGL::glDeleteList delete $self->{list} if $self->{list};
+#
+#   $self->SUPER::destroy;
+#}
+
 #############################################################################
 
 package CFPlus::UI::EntryBase;
@@ -2081,8 +2076,9 @@
    $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],
+      active_bg  => [0, 0,  1, .2],
+      active_fg  => [1, 1,  1],
+      active_outline => [1, 1, 0],
       can_hover  => 1,
       can_focus  => 1,
       valign     => 0,
@@ -2249,13 +2245,25 @@
          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} + $self->{cur_h};
       glEnd;
+
+      glLineWidth 3;
+      glColor @{$self->{active_outline}};
+      glTranslate -.375, -.375;
+      glBegin GL_LINE_LOOP;
+      glVertex          0,          0;
+      glVertex $self->{w},          0;
+      glVertex $self->{w}, $self->{h};
+      glVertex          0, $self->{h};
+      glEnd;
+      glLineWidth 1;
    }
 }
 
@@ -2351,6 +2359,55 @@
 
 #############################################################################
 
+package CFPlus::UI::ButtonBin;
+
+our @ISA = CFPlus::UI::Bin::;
+
+use CFPlus::OpenGL;
+
+my @tex =
+      map { new_from_file CFPlus::Texture CFPlus::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 CFPlus::UI::Button;
 
 our @ISA = CFPlus::UI::Label::;
@@ -2494,6 +2551,7 @@
 
    my $self = $class->SUPER::new (
       can_events => 0,
+      scale      => 1,
       @_,
    );
 
@@ -2528,7 +2586,7 @@
 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 {
@@ -2548,7 +2606,7 @@
    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;
 }
@@ -2860,7 +2918,9 @@
 
    $self->{click} = [$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 {
@@ -2890,7 +2950,7 @@
 
    $self->set_value ($self->{range}[0] + $delta * $self->{range}[3] * $pagepart);
 
-   ! ! $delta
+   1
 }
 
 sub update {
@@ -3031,7 +3091,7 @@
 sub size_request {
    my ($self) = @_;
 
-   my ($empty, $slider) = @{ $self->{children} };
+   my ($empty, $slider) = $self->visible_children;
 
    local $self->{children} = [$empty, $slider];
    $self->SUPER::size_request
@@ -3430,12 +3490,7 @@
    my ($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;
@@ -3473,7 +3528,7 @@
       CFPlus::weaken (my $widget = $self);
 
       $widget->{animspeed} = List::Util::max 0.05, $widget->{animspeed};
-      $widget->{anim_start} = $self->{animspeed} * Event::time / $self->{animspeed};
+      $widget->{anim_start} = $self->{animspeed} * int Event::time / $self->{animspeed};
       $self->{timer} = Event->timer (
          parked   => 1,
          cb       => sub {
@@ -3520,6 +3575,7 @@
       if ($anim && @$anim) {
          delete $self->{wait_face};
          $self->{face} = $anim->[ $self->{frame} % @$anim ];
+         $self->{tex} = $::CONN->{texture}[ $::CONN->{faceid}[$self->{face}] ];
       }
    }
 }
@@ -3530,6 +3586,7 @@
    if ($::CONN) {
       if (my $faceid = $::CONN->{faceid}[$self->{face}]) {
          if (my $tex = $::CONN->{texture}[$faceid]) {
+            $self->{tex} = $tex;
             return ($self->{size_w} || $tex->{w}, $self->{size_h} || $tex->{h});
          } else {
             $self->{wait_face} ||= $::CONN->connect_face_update ($faceid, sub {
@@ -3561,16 +3618,9 @@
 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;
@@ -3632,7 +3682,7 @@
                   (new CFPlus::UI::Label markup => $right, align => +1),
                ],
             ;
-               
+
          } else {
             $widget = new CFPlus::UI::Label
                can_hover  => 1,
@@ -3778,25 +3828,71 @@
       # 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}, "CFPlus::UI::Base")
+                     ? $child->{c_tab}
+                     : new CFPlus::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)
+}
 
-   $self->{multiplexer}->add ($widget);
+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;
+
+   $self->add ($widget);
 }
 
 sub get_current_page {
@@ -4136,7 +4232,7 @@
          for values %{delete $self->{refresh_hook}};
    }
 
-   if ($self->{realloc}) {
+   while ($self->{realloc}) {
       my %queue;
       my @queue;
       my $widget;
@@ -4193,40 +4289,37 @@
 
          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 $widget = pop @queue || last;
+      while (my $size_alloc = delete $self->{size_alloc}) {
+         my @queue = sort { $a->{visible} <=> $b->{visible} }
+                          values %$size_alloc;
 
-         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);
+            }
          }
       }
    }