add class ElementProvider and build small ui for the properties of folio report element

git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/trunk@2672 bfdf4180-ca20-0410-9c96-a3a8aa849046

sources/elementprovider.cpp

@@ -0,0 +1,54 @@
+/*
+	Copyright 2006-2013 The QElectroTech Team
+	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 "elementprovider.h"
+
+/**
+ * @brief ElementProvider::ElementProvider Constructor
+ * @param prj the project where we must find element
+ * @param diagram the digram to exclude from the search
+ */
+ElementProvider::ElementProvider(QETProject *prj, Diagram *diagram)
+{
+	diag_list = prj->diagrams();
+	diag_list.removeOne(diagram);
+}
+
+/**
+ * @brief ElementProvider::FreeElement
+ * Search and return the asked element corresponding  with the given filter
+ * All returned element are free, ie element aren't connected with another element
+ * @param filter
+ * the filter for search element
+ * (the filter must be the enum linkerType in Element.h)
+ * @return
+ */
+QList <Element *> ElementProvider::FreeElement(int filter) {
+	QList <Element *> free_elmt;
+
+	//serch in all diagram
+	foreach (Diagram *d, diag_list) {
+		//get all element in diagram d
+		QList <Element *> elmt_list;
+		elmt_list = d->elements();
+		foreach (Element *elmt, elmt_list) {
+			if (filter & elmt->linkType())
+				if (elmt->isFree()) free_elmt << elmt;
+		}
+	}
+	return (free_elmt);
+}