Initial import of Dillo

dw/alignedtextblock.cc

@@ -0,0 +1,107 @@
+/*
+ * 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 "../lout/debug.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)
+{
+   DBG_OBJ_CREATE ("dw::AlignedTextblock");
+   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);
+   DBG_OBJ_DELETE ();
+}
+
+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