Bugfix: existing project files could end up saving application-wide default template properties.

git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/trunk@1889 bfdf4180-ca20-0410-9c96-a3a8aa849046

sources/diagramcontext.cpp

@@ -65,6 +65,13 @@ bool DiagramContext::addValue(const QString &key, const QVariant &value) {
 	return(false);
 }
 
+/**
+	Clear the content of this diagram context.
+*/
+void DiagramContext::clear() {
+	content_.clear();
+}
+
 bool DiagramContext::operator==(const DiagramContext &dc) const {
 	return(content_ == dc.content_);
 }

sources/diagramcontext.h

@@ -36,6 +36,7 @@ class DiagramContext {
 	bool contains(const QString &) const;
 	const QVariant operator[](const QString &) const;
 	bool addValue(const QString &, const QVariant &);
+	void clear();
 	
 	bool operator==(const DiagramContext &) const;
 	bool operator!=(const DiagramContext &) const;

sources/titleblockproperties.cpp

@@ -102,6 +102,7 @@ void TitleBlockProperties::fromXml(const QDomElement &e) {
 	if (e.hasAttribute("titleblocktemplate")) template_name = e.attribute("titleblocktemplate");
 	
 	// reads the additional fields used to fill the title block
+	context.clear();
 	foreach (QDomElement property, QET::findInDomElement(e, "properties", "property")) {
 		if (!property.hasAttribute("name")) continue;
 		context.addValue(property.attribute("name"), QVariant(property.text()));