feat: Add basic task flow run and edit (#212)

TaskFlow/Editor/TaskConnectionItem.hpp

@@ -0,0 +1,55 @@
+#pragma once
+
+#include "TaskConnection.hpp"
+#include <QPointF>
+#include <QQuickItem>
+
+namespace QodeAssist::TaskFlow {
+
+class TaskConnectionItem : public QQuickItem
+{
+    Q_OBJECT
+    QML_ELEMENT
+
+    Q_PROPERTY(QPointF startPoint READ startPoint NOTIFY startPointChanged)
+    Q_PROPERTY(QPointF endPoint READ endPoint NOTIFY endPointChanged)
+    Q_PROPERTY(
+        TaskConnection *connection READ connection WRITE setConnection NOTIFY connectionChanged)
+
+    Q_PROPERTY(QVariantList taskItems READ taskItems WRITE setTaskItems NOTIFY taskItemsChanged)
+
+public:
+    TaskConnectionItem(QQuickItem *parent = nullptr);
+
+    QPointF startPoint() const { return m_startPoint; }
+    QPointF endPoint() const { return m_endPoint; }
+
+    TaskConnection *connection() const { return m_connection; }
+    void setConnection(TaskConnection *connection);
+
+    Q_INVOKABLE void updatePositions();
+
+    QVariantList taskItems() const;
+    void setTaskItems(const QVariantList &newTaskItems);
+
+signals:
+    void startPointChanged();
+    void endPointChanged();
+    void connectionChanged();
+
+    void taskItemsChanged();
+
+private:
+    void calculatePositions();
+    QQuickItem *findTaskItem(BaseTask *task);
+    QQuickItem *findTaskItemRecursive(QQuickItem *item, BaseTask *task);
+    QQuickItem *findPortItem(QQuickItem *taskItem, TaskPort *port);
+
+private:
+    TaskConnection *m_connection = nullptr;
+    QPointF m_startPoint;
+    QPointF m_endPoint;
+    QVariantList m_taskItems;
+};
+
+} // namespace QodeAssist::TaskFlow