Initial implementation of XmlUtil. Completed XmlPaperParser.

2013-11-03 11:10:08 -05:00
parent cbae7243b8
commit 109574a409
11 changed files with 342 additions and 73 deletions
@@ -0,0 +1,229 @@
+/*  XmlUtil.cpp
+ *
+ *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *
+ *  This file is part of gLabels-qt.
+ *
+ *  gLabels-qt 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.
+ *
+ *  gLabels-qt 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 gLabels-qt.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "XmlUtil.h"
+
+#include <QTextStream>
+#include <iostream>
+
+
+namespace libglabels
+{
+
+	Units *XmlUtil::mDefaultUnits;
+
+
+	QString  XmlUtil::getAttr( const QDomElement &node, const QString &name, const char *default_value )
+	{
+		return node.attribute( name, QString(default_value) );
+	}
+
+
+	QString  XmlUtil::getAttr( const QDomElement &node, const QString &name, const QString &default_value )
+	{
+		return node.attribute( name, default_value );
+	}
+
+
+	double   XmlUtil::getAttr( const QDomElement &node, const QString &name, double default_value )
+	{
+		QString valueString = node.attribute( name, "" );
+		if ( valueString != "" )
+		{
+			bool ok;
+			double value = valueString.toDouble( &ok );
+
+			if ( !ok )
+			{
+				std::cerr << "Error: bad double value in attribute "
+					  << qPrintable( node.tagName() ) << ":" << qPrintable( name )
+					  << " : '" << qPrintable( valueString ) << "'"
+					  << std:: endl;
+				return default_value;
+			}
+
+			return value;
+		}
+
+		return default_value;
+	}
+
+
+	bool     XmlUtil::getAttr( const QDomElement &node, const QString &name, bool default_value )
+	{
+		QString valueString = node.attribute( name, "" );
+		if ( valueString != "" )
+		{
+			int intValue = valueString.toInt();
+
+			if ( (valueString == "True") ||
+			     (valueString == "TRUE") ||
+			     (valueString == "true") ||
+			     (intValue == 1) )
+			{
+				return true;
+			}
+
+			if ( (valueString == "False") ||
+			     (valueString == "FALSE") ||
+			     (valueString == "false") ||
+			     (intValue == 0) )
+			{
+				return false;
+			}
+
+			std::cerr << "Error: bad boolean value in attribute "
+				  << qPrintable( node.tagName() ) << ":" << qPrintable( name )
+				  << " : '" << qPrintable( valueString ) << "'"
+				  << std:: endl;
+			return default_value;
+		}
+
+		return default_value;
+	}
+
+
+	int      XmlUtil::getAttr( const QDomElement &node, const QString &name, int default_value )
+	{
+		QString valueString = node.attribute( name, "" );
+		if ( valueString != "" )
+		{
+			bool ok;
+			int value = valueString.toInt( &ok );
+
+			if ( !ok )
+			{
+				std::cerr << "Error: bad integer value in attribute "
+					  << qPrintable( node.tagName() ) << ":" << qPrintable( name )
+					  << " : '" << qPrintable( valueString ) << "'"
+					  << std:: endl;
+				return default_value;
+			}
+
+			return value;
+		}
+
+		return default_value;
+	}
+
+
+	uint32_t XmlUtil::getAttr( const QDomElement &node, const QString &name, uint32_t default_value )
+	{
+		QString valueString = node.attribute( name, "" );
+		if ( valueString != "" )
+		{
+			// TODO: Does base-0 do what we want?  I.e. use base determined by format e.g. "0xff"
+			bool ok;
+			uint32_t value = valueString.toInt( &ok, 0 );
+
+			if ( !ok )
+			{
+				std::cerr << "Error: bad unsigned integer value in attribute "
+					  << qPrintable( node.tagName() ) << ":" << qPrintable( name )
+					  << " : '" << qPrintable( valueString ) << "'"
+					  << std:: endl;
+				return default_value;
+			}
+
+			return value;
+		}
+
+		return default_value;
+	}
+
+
+	QString  XmlUtil::getAttrI18n( const QDomElement &node, const QString &name, const QString &default_value )
+	{
+		// TODO: are translations done in a compatable way, so that we can use "_name" attributes?
+		return node.attribute( QString("_").append(name), default_value );
+	}
+
+
+	double   XmlUtil::getAttrLength( const QDomElement &node, const QString &name, double default_value )
+	{
+		QString valueString = node.attribute( name, "" );
+		if ( valueString != "" )
+		{
+			double value;
+			QString unitsString;
+			QTextStream valueStream( &valueString, QIODevice::ReadOnly );
+
+			valueStream >> value >> unitsString;
+
+			if ( !Units::isIdValid( unitsString ) )
+			{
+				std::cerr << "Error: bad length value in attribute "
+					  << qPrintable( node.tagName() ) << ":" << qPrintable( name )
+					  << " : '" << qPrintable( valueString ) << "'"
+					  << std:: endl;
+				return default_value;
+			}
+
+			Units *units = Units::fromId( unitsString );
+
+			return value * units->pointsPerUnit();
+		}
+
+		return default_value;
+	}
+
+
+	void     XmlUtil::setAttr( const QDomElement &node, const QString &name, const char *value )
+	{
+		// TODO
+	}
+
+
+	void     XmlUtil::setAttr( const QDomElement &node, const QString &name, const QString &value )
+	{
+		// TODO
+	}
+
+
+	void     XmlUtil::setAttr( const QDomElement &node, const QString &name, double value )
+	{
+		// TODO
+	}
+
+
+	void     XmlUtil::setAttr( const QDomElement &node, const QString &name, bool value )
+	{
+		// TODO
+	}
+
+
+	void     XmlUtil::setAttr( const QDomElement &node, const QString &name, int value )
+	{
+		// TODO
+	}
+
+
+	void     XmlUtil::setAttr( const QDomElement &node, const QString &name, uint32_t value )
+	{
+		// TODO
+	}
+
+
+	void     XmlUtil::setAttrLength( const QDomElement &node, const QString &name, double value )
+	{
+		// TODO
+	}
+
+}