--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/webengine/osswebengine/WebCore/rendering/RenderBR.cpp Mon Mar 30 12:54:55 2009 +0300
@@ -0,0 +1,116 @@
+/**
+ * This file is part of the DOM implementation for KDE.
+ *
+ * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
+ * Copyright (C) 2006 Apple Computer, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB. If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ */
+
+#include "config.h"
+#include "RenderBR.h"
+
+#include "Document.h"
+#include "InlineTextBox.h"
+#include "VisiblePosition.h"
+
+namespace WebCore {
+
+RenderBR::RenderBR(Node* node)
+ : RenderText(node, new StringImpl("\n"))
+ , m_lineHeight(-1)
+{
+}
+
+RenderBR::~RenderBR()
+{
+}
+
+InlineBox* RenderBR::createInlineBox(bool makePlaceholder, bool isRootLineBox, bool isOnlyRun)
+{
+ // We only treat a box as text for a <br> if we are on a line by ourself or in strict mode
+ // (Note the use of strict mode. In "almost strict" mode, we don't treat the box for <br> as text.)
+ InlineTextBox* box = static_cast<InlineTextBox*>(RenderText::createInlineBox(makePlaceholder, isRootLineBox, isOnlyRun));
+ box->setIsText(isOnlyRun || document()->inStrictMode());
+ return box;
+}
+
+short RenderBR::baselinePosition(bool firstLine, bool isRootLineBox) const
+{
+ if (firstTextBox() && !firstTextBox()->isText())
+ return 0;
+ return RenderText::baselinePosition(firstLine, isRootLineBox);
+}
+
+short RenderBR::lineHeight(bool firstLine, bool isRootLineBox) const
+{
+ if (firstTextBox() && !firstTextBox()->isText())
+ return 0;
+
+ if (firstLine) {
+ RenderStyle* s = style(firstLine);
+ Length lh = s->lineHeight();
+ if (lh.isNegative()) {
+ if (s == style()) {
+ if (m_lineHeight == -1)
+ m_lineHeight = RenderObject::lineHeight(false);
+ return m_lineHeight;
+ }
+ return s->font().lineSpacing();
+ }
+ if (lh.isPercent())
+ return lh.calcMinValue(s->fontSize());
+ return lh.value();
+ }
+
+ if (m_lineHeight == -1)
+ m_lineHeight = RenderObject::lineHeight(false);
+ return m_lineHeight;
+}
+
+void RenderBR::setStyle(RenderStyle* newStyle)
+{
+ RenderText::setStyle(newStyle);
+ m_lineHeight = -1;
+}
+
+int RenderBR::caretMinOffset() const
+{
+ return 0;
+}
+
+int RenderBR::caretMaxOffset() const
+{
+ return 1;
+}
+
+unsigned RenderBR::caretMaxRenderedOffset() const
+{
+ return 1;
+}
+
+VisiblePosition RenderBR::positionForCoordinates(int /*x*/, int /*y*/)
+{
+ return VisiblePosition(element(), 0, DOWNSTREAM);
+}
+
+InlineBox* RenderBR::inlineBox(int /*offset*/, EAffinity /*affinity*/)
+{
+ return firstTextBox();
+}
+
+} // namespace WebCore