Added RawText type for text and barcode objects.

glabels/RawText.cpp

@@ -0,0 +1,110 @@
+/*  RawText.cpp
+ *
+ *  Copyright (C) 2017  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 "RawText.h"
+
+#include <QRegularExpression>
+
+namespace glabels
+{
+
+	///
+	/// Constructor from QString
+	///
+	RawText::RawText( const QString& string ) : mString(string)
+	{
+	}
+
+
+	///
+	/// Constructor from C string operator
+	///
+	RawText::RawText( const char* cString ) : mString(QString(cString))
+	{
+	}
+
+	
+	///
+	/// Access as QString
+	///
+	QString RawText::toString() const
+	{
+		return mString;
+	}
+	
+
+	///
+	/// Access as std::string
+	///
+	std::string RawText::toStdString() const
+	{
+		return mString.toStdString();
+	}
+	
+
+	///
+	/// Expand all place holders
+	///
+	QString RawText::expand( merge::Record* record ) const
+	{
+		QString text = mString;
+		
+		if ( record )
+		{
+			foreach ( QString key, record->keys() )
+			{
+				// Special case: remove line when it contains only an empty field.
+				// e.g. an optional ${ADDR2} line.  To bypass this case, include
+				// whitespace at end of line.
+				if ( record->value(key).isEmpty() )
+				{
+					QStringList v = text.split( '\n' );
+					v.removeAll( "${"+key+"}" );
+					text = v.join( '\n' );
+				}
+
+				// Nominal case: simple replacement
+				text.replace( "${"+key+"}", record->value(key) );
+			}
+		}
+
+		return text;
+	}
+
+
+	///
+	/// Does raw text contain place holders?
+	///
+	bool RawText::hasPlaceHolders() const
+	{
+		QRegularExpression re("\\${\\w+}");
+		return mString.contains( re );
+	}
+
+
+	///
+	/// Is raw text empty?
+	///
+	bool RawText::isEmpty() const
+	{
+		return mString.isEmpty();
+	}
+
+} // namespace glabels