Much work on table widget.

1 files changed, 134 insertions, 0 deletions

diff --git a/dw/table_iterator.cc b/dw/table_iterator.cc
new file mode 100644
index 00000000..4da0ef4f
--- /dev/null
+++ b/dw/table_iterator.cc
@@ -0,0 +1,134 @@
+/*
+ * Dillo Widget
+ *
+ * Copyright 2005-2007, 2014 Sebastian Geerken <sgeerken@dillo.org>
+ *
+ * (This file was originally part of textblock.cc.)
+ *
+ * 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 "table.hh"
+
+using namespace lout;
+
+namespace dw {
+
+Table::TableIterator::TableIterator (Table *table,
+                                     core::Content::Type mask, bool atEnd):
+   core::Iterator (table, mask, atEnd)
+{
+   index = atEnd ? table->children->size () : -1;
+   content.type = atEnd ? core::Content::END : core::Content::START;
+}
+
+Table::TableIterator::TableIterator (Table *table,
+                                     core::Content::Type mask, int index):
+   core::Iterator (table, mask, false)
+{
+   this->index = index;
+
+   if (index < 0)
+      content.type = core::Content::START;
+   else if (index >= table->children->size ())
+      content.type = core::Content::END;
+   else {
+      content.type = core::Content::WIDGET_IN_FLOW;
+      content.widget = table->children->get(index)->cell.widget;
+   }
+}
+
+object::Object *Table::TableIterator::clone()
+{
+   return new TableIterator ((Table*)getWidget(), getMask(), index);
+}
+
+int Table::TableIterator::compareTo(object::Comparable *other)
+{
+   return index - ((TableIterator*)other)->index;
+}
+
+bool Table::TableIterator::next ()
+{
+   Table *table = (Table*)getWidget();
+
+   if (content.type == core::Content::END)
+      return false;
+
+   // tables only contain widgets (in flow):
+   if ((getMask() & core::Content::WIDGET_IN_FLOW) == 0) {
+      content.type = core::Content::END;
+      return false;
+   }
+
+   do {
+      index++;
+      if (index >= table->children->size ()) {
+         content.type = core::Content::END;
+         return false;
+      }
+   } while (table->children->get(index) == NULL ||
+            table->children->get(index)->type != Child::CELL);
+
+   content.type = core::Content::WIDGET_IN_FLOW;
+   content.widget = table->children->get(index)->cell.widget;
+   return true;
+}
+
+bool Table::TableIterator::prev ()
+{
+   Table *table = (Table*)getWidget();
+
+   if (content.type == core::Content::START)
+      return false;
+
+   // tables only contain widgets (in flow):
+   if ((getMask() & core::Content::WIDGET_IN_FLOW) == 0) {
+      content.type = core::Content::START;
+      return false;
+   }
+
+   do {
+      index--;
+      if (index < 0) {
+         content.type = core::Content::START;
+         return false;
+      }
+   } while (table->children->get(index) == NULL ||
+            table->children->get(index)->type != Child::CELL);
+
+   content.type = core::Content::WIDGET_IN_FLOW;
+   content.widget = table->children->get(index)->cell.widget;
+   return true;
+}
+
+void Table::TableIterator::highlight (int start, int end,
+                                      core::HighlightLayer layer)
+{
+   /** todo Needs this an implementation? */
+}
+
+void Table::TableIterator::unhighlight (int direction,
+                                        core::HighlightLayer layer)
+{
+}
+
+void Table::TableIterator::getAllocation (int start, int end,
+                                                  core::Allocation *allocation)
+{
+   /** \bug Not implemented. */
+}
+
+} // namespace dw