fix a couple of leaks in qtgui

Author: fuzzie

src/backends/qtgui/AgentInjector.cpp

@@ -65,6 +65,13 @@ void AgentInjector::onSelect(QListWidgetItem *current, QListWidgetItem *prev) {
 }
 
 void AgentInjector::resetAgents() {
+	if (engine.version == 2) {
+		for (int i = 0; i < ui.agentList->count(); i++) {
+			QListWidgetItem *item = ui.agentList->item(i);
+			cobAgentBlock *b = (cobAgentBlock *)item->data(Qt::UserRole).value<void *>();
+			delete b;
+		}
+	}
 	ui.agentList->clear();
 	ui.injectButton->setEnabled(false);
 	ui.removeButton->setEnabled(false);

src/backends/qtgui/Hatchery.cpp

@@ -182,7 +182,7 @@ Hatchery::Hatchery(QtOpenc2e *parent) : QDialog(parent) {
 	resize(hatcherybg.width() + 6, hatcherybg.height() + 6);
 
 	/* create the widgets/layout */
-	graphicsScene = new QGraphicsScene();
+	graphicsScene = new QGraphicsScene(this);
 	graphicsView = new QGraphicsView(graphicsScene, this);
 	QHBoxLayout *layout = new QHBoxLayout(this);
 	layout->addWidget(graphicsView);