Introduction of classes, structs and enums related to inset templates.

git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/branches/0.3@1129 bfdf4180-ca20-0410-9c96-a3a8aa849046

sources/diagramcontext.cpp

@@ -0,0 +1,65 @@
+/*
+	Copyright 2006-2010 Xavier Guerrin
+	This file is part of QElectroTech.
+	
+	QElectroTech 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 2 of the License, or
+	(at your option) any later version.
+	
+	QElectroTech 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 QElectroTech.  If not, see <http://www.gnu.org/licenses/>.
+*/
+#include "diagramcontext.h"
+#include <QRegExp>
+
+/**
+	@return a list containing all the keys in the context object.
+*/
+QList<QString> DiagramContext::keys() const {
+	return(content_.keys());
+}
+
+/**
+	@param key string key
+	@return true if that key is known to the diagram context, false otherwise
+*/
+bool DiagramContext::contains(const QString &key) const {
+	return(content_.contains(key));
+}
+
+/**
+	@param key
+*/
+const QVariant DiagramContext::operator[](const QString &key) const {
+	return(content_[key]);
+}
+
+/**
+	@param key key to insert in the context - the key may only contain lowercase
+	letters and dashes
+	@see DiagramContext::keyIsAcceptable()
+	@param value value to insert in the context
+	@return true if the insertion succeeds, false otherwise
+*/
+bool DiagramContext::addValue(const QString &key, const QVariant &value) {
+	if (keyIsAcceptable(key)) {
+		content_.insert(key, value);
+		return(true);
+	}
+	return(false);
+}
+
+/**
+	@param key a key string
+	@return true if that key is acceptable, false otherwise
+*/
+bool DiagramContext::keyIsAcceptable(const QString &key) const {
+	static QRegExp re("^[a-z-]+$");
+	return(re.exactMatch(key));
+}