72 lines
1.8 KiB
C++
72 lines
1.8 KiB
C++
/*
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* \brief Utility for parsing an anchor attribute from an XML node
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* \author Norman Feske
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* \date 2014-08-21
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*/
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/*
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* Copyright (C) 2014 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU General Public License version 2.
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*/
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#ifndef _INCLUDE__GEMS__XML_ANCHOR_H_
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#define _INCLUDE__GEMS__XML_ANCHOR_H_
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#include <util/xml_node.h>
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class Anchor
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{
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public:
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enum Direction { LOW, CENTER, HIGH };
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Direction horizontal = CENTER, vertical = CENTER;
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private:
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typedef Genode::Xml_node Xml_node;
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struct Value
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{
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char const *value;
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Direction horizontal, vertical;
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};
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Value const _values[10] = { { "top_left", LOW, LOW },
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{ "top", CENTER, LOW },
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{ "top_right", HIGH, LOW },
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{ "left", LOW, CENTER },
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{ "center", CENTER, CENTER },
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{ "right", HIGH, CENTER },
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{ "bottom_left", LOW, HIGH },
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{ "bottom", CENTER, HIGH },
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{ "bottom_right", HIGH, HIGH },
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{ nullptr, CENTER, CENTER } };
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public:
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Anchor(Xml_node node)
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{
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char const * const attr = "anchor";
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if (!node.has_attribute(attr))
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return;
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Xml_node::Attribute const anchor = node.attribute(attr);
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for (Value const *value = _values; value->value; value++) {
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if (anchor.has_value(value->value)) {
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horizontal = value->horizontal;
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vertical = value->vertical;
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return;
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}
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}
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PWRN("unsupported anchor attribute value");
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}
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};
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#endif /* _INCLUDE__GEMS__XML_ANCHOR_H_ */
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