view dw/alignedtextblock.cc @ 2030:382160be8c2f

cookies comments I was going to say something in the comments about simplicity and not implementing every little bit of the rfc when we don't know of cookies that make it necessary, but then I suppose that's all implied with dillo.
author corvid <corvid@lavabit.com>
date Tue, 17 May 2011 22:48:50 +0000
parents 4704ad910042
children
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/*
 * Dillo Widget
 *
 * Copyright 2005-2007 Sebastian Geerken <sgeerken@dillo.org>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */



#include "alignedtextblock.hh"
#include <stdio.h>

namespace dw {

AlignedTextblock::List::List ()
{
   textblocks = new lout::misc::SimpleVector <AlignedTextblock*> (4);
   values = new lout::misc::SimpleVector <int> (4);
   maxValue = 0;
   refCount = 0;
}

AlignedTextblock::List::~List ()
{
   delete textblocks;
   delete values;
}

int AlignedTextblock::List::add(AlignedTextblock *textblock)
{
   textblocks->increase ();
   values->increase ();
   textblocks->set (textblocks->size () - 1, textblock);
   refCount++;
   return textblocks->size () - 1;
}

void AlignedTextblock::List::unref(int pos)
{
   assert (textblocks->get (pos) != NULL);
   textblocks->set (pos, NULL);
   refCount--;

   if (refCount == 0)
      delete this;
}

int AlignedTextblock::CLASS_ID = -1;

AlignedTextblock::AlignedTextblock (bool limitTextWidth):
   Textblock (limitTextWidth)
{
   registerName ("dw::AlignedTextblock", &CLASS_ID);
}

void AlignedTextblock::setRefTextblock (AlignedTextblock *ref)
{
   if (ref == NULL)
      list = new List();
   else
      list = ref->list;

   listPos = list->add (this);
   updateValue ();
}

AlignedTextblock::~AlignedTextblock()
{
   list->unref (listPos);
}

void AlignedTextblock::updateValue ()
{
   if (list) {
      list->setValue (listPos, getValue ());

      if (list->getValue (listPos) > list->getMaxValue ()) {
         // New value greater than current maximum -> apply it to others.
         list->setMaxValue (list->getValue (listPos));

         for (int i = 0; i < list->size (); i++)
            if (list->getTextblock (i))
               list->getTextblock (i)->setMaxValue (list->getMaxValue (),
                                                    list->getValue (i));
      } else {
         /* No change, apply old max_value only to this page. */
         setMaxValue (list->getMaxValue (), list->getValue (listPos));
      }
   }
}

} // namespace dw