/*! Opens specified file. This function does not ask the user to save an unsaved modified diagram. That is the MainWindow's job. This function will simply clear out the node vector and load the file in. */ void Document::openDocument(QString openName) { QDomDocument* xmlDoc = openSaveFile(openName); QDomElement docElem = getNextDocumentElement(xmlDoc); QDomElement nodesVectorElement; QDomElement n; BaseNode* newNode; // Clear the nodes vector nodes.clear(); ordering.clear(); // Get the diagram type diagramType = static_cast<BaseNode::DiagramType>(docElem.attribute("diagramType").toInt()); // First get out the first (and hopefully only) nodes_vector_element. nodesVectorElement = docElem.firstChildElement("nodes_vector_element"); // Now we have to iterate over all the Node elements and restor them. // This style of iteration loop was taken from the Qt documentation for // QDomElement. n = nodesVectorElement.firstChildElement("Node"); for (; !n.isNull(); n = n.nextSiblingElement("Node")) { // Now that we have the QDomElement, try to produce the node newNode = NodeFactory::getInstance()->produceFromClassName(n.attribute("class_name")); // Check we failed if (newNode == 0) { qDebug() << "Document::openDocument Error: Couldn't produce a " << n.attribute("class_name") << " with the node factory."; } else { // Restore the unique id and all the properties newNode->from_xml(n); // Push the node onto the node vector nodes.push_back(newNode); ordering.push_back(nodes.size()-1); } } // Now that we have all the id's restored, we can restore the connections // between the nodes. We loop over all the Node elements in // node_vector_element and loop over all the ConnectedObject elements in // each Node. n = nodesVectorElement.firstChildElement("Node"); for (; !n.isNull(); n = n.nextSiblingElement("Node")) { BaseNode* sourcenode; QUuid sourceid; // Find the node that we created earlier from this element sourceid = QUuid(n.attribute("Id")); sourcenode = this->findNodeById(sourceid); if (sourcenode == 0) { qDebug() << "Document::openDocument Error: Couldn't find source node by id"; } else { QUuid targetid; BaseNode* targetnode; // Now that we have the element and it's associated node, iterate // over all of the element's children ("ConnectedObjects") QDomElement child = n.firstChildElement("ConnectedObject"); for (; !child.isNull(); child = child.nextSiblingElement("ConnectedObject")) { // Find the targeted node by id targetid = QUuid(child.attribute("id")); targetnode = this->findNodeById(targetid); // Check if it failed if (targetnode == 0) { qDebug() << "Document::openDocument Error: Couldn't find a target node by id"; } else { // If it didn't fail, add the connection! sourcenode->addConnectedNode(targetnode); } } } } setFilename(openName); setModified(false); update(); }
/*! Slot. Sets the second point in a new connection node. This function actually creates the node using the NodeFactory. It doesn't create the node if the first or second point is invalid. */ void Document::createConnectionPoint2(const QPoint &point) { // Create the object only if a valid first object was found int index; // creates a temp object node for self connectors BaseNode *tempnode; tempnode = NodeFactory::getInstance()->produce(newObjectID); if (firstConnectionIndex != -1) { index = getIndexAt(point); // And the second index was found if (((index != -1) && (nodes.at(index)->isConnector() == false)) && index != firstConnectionIndex) { // produce the object BaseNode *newNode; newNode = NodeFactory::getInstance()->produce(newObjectID); // now connect the connection to both objects, and connect the // objects to the connections newNode->addConnectedNode(nodes.at(firstConnectionIndex)); newNode->addConnectedNode(nodes.at(index)); nodes.at(firstConnectionIndex)->addConnectedNode(newNode); nodes.at(index)->addConnectedNode(newNode); addNodeToList(newNode); ordering.append(nodes.size()-1); nodes.at(index)->setSelectedForConnectionPoint(false); setModified(true); emit modelChanged(); } // Self connectors // And the second index was found else if ((((index != -1) && (nodes.at(index)->isConnector() == false)) && (index == firstConnectionIndex) && (tempnode->getText() == "Collaboration Self Line")) || ((index != -1) && (nodes.at(index)->isConnector() == false) &&(index == firstConnectionIndex) && (tempnode->getText() == "State Self Line"))) { // produce the object BaseNode *newNode; newNode = NodeFactory::getInstance()->produce(newObjectID); // now connect the connection to both objects, and connect the // objects to the connections newNode->addConnectedNode(nodes.at(firstConnectionIndex)); newNode->addConnectedNode(nodes.at(index)); nodes.at(firstConnectionIndex)->addConnectedNode(newNode); nodes.at(index)->addConnectedNode(newNode); addNodeToList(newNode); ordering.append(nodes.size()-1); nodes.at(index)->setSelectedForConnectionPoint(false); setModified(true); emit modelChanged(); } // end of self connect else { QMessageBox::information(0, "pUML", "No second object selected"); } } if (firstConnectionIndex != -1) { nodes.at(firstConnectionIndex)->setSelectedForConnectionPoint(false); } }