first reCommit

model/xqnode.h

@@ -0,0 +1,172 @@
+/***************************************************************************
+
+    source::worx xtree
+    Copyright © 2024-2025 c.holzheuer
+    christoph.holzheuer@gmail.com
+
+    This program 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.
+
+***************************************************************************/
+
+
+#ifndef XQNODE_H
+#define XQNODE_H
+
+#include <iostream>
+#include <memory>
+
+#include <stack>
+#include <iterator>
+
+#include <QDebug>
+#include <QModelIndex>
+#include <znode.h>
+#include <xqappdata.h>
+#include <znode_factory.h>
+
+// Overload the operator<< for QString and std::ostream
+std::ostream& operator<<(std::ostream& os, const QString& obj);
+
+// raw node
+using XQNode = znode::zbasic_node<QString>;
+// default shared node
+using XQNodePtr = std::shared_ptr<znode::zbasic_node<QString>>;
+// const ref on XQNodePtr, ok but what its good for?
+//using const XQNodePtr& = const XQNodePtr&;
+
+/*
+class XQBasicSheetNode : public znode::zbasic_node<QString>
+{
+public:
+
+  //...
+};
+
+using XQSheetNode = std::shared_ptr<const XQBasicSheetNode>;
+using XQSheetNodeCRef = const XQSheetNode&;
+*/
+
+///
+/// __fix
+/// sollte man einen XQNodePtr einführen, um 'setAttr<XQNodePtr>()' von
+/// setAttr<XQNodePtr>() unterscheiden zu können?
+///
+/// nice try. (siehe oben). Haut aber so nicht hin, node.children() gibt wieder
+/// Pointer auf die Basisklasse zurück, ( vgl. XQItemList -> QList<QStandardItem*>.
+/// Erst dass behandeln!
+///
+
+// weak pointer to znode, used for parent()
+using XQWeakNode   = std::weak_ptr<znode::zbasic_node<QString>>;
+// the node factory
+using XQNodeFactory = znode::znode_factory<QString>;
+
+class XQNodeList : public znode::zbasic_node<QString>::znode_list
+{
+
+  friend class XQSimpleClipBoard;
+
+public:
+
+  XQNodeList() = default;
+  virtual ~XQNodeList() = default;
+
+
+
+};
+
+
+
+class XNodeIterator
+{
+
+public:
+
+  using iterator_category = std::forward_iterator_tag;
+  using value_type = XQNode;
+  using difference_type = std::ptrdiff_t;
+  using pointer = XQNode*;
+  using reference = XQNode&;
+
+  XNodeIterator() = default;
+
+  XNodeIterator(XQNodePtr root)
+  {
+    if (root) {
+      _stack.push(root);
+    }
+  }
+
+  reference operator*() const {
+    return *_stack.top();
+  }
+
+  pointer operator->() const {
+    return _stack.top().get();
+  }
+
+  XNodeIterator& operator++() {
+    auto node = _stack.top();
+    _stack.pop();
+    for (auto it = node->children().rbegin(); it != node->children().rend(); ++it)
+    {
+      _stack.push(*it);
+    }
+    return *this;
+  }
+
+  XNodeIterator operator++(int) {
+    XNodeIterator tmp = *this;
+    ++(*this);
+    return tmp;
+  }
+
+  bool operator==(const XNodeIterator& other) const {
+    return _stack == other._stack;
+  }
+
+  bool operator!=(const XNodeIterator& other) const {
+    return !(*this == other);
+  }
+
+private:
+
+  std::stack<XQNodePtr> _stack;
+};
+
+// Define the tree class with begin and end methods
+class XTree
+{
+
+public:
+
+  XTree(XQNodePtr root)
+      : _root(root)
+  {}
+
+  XNodeIterator begin()
+  {
+    return XNodeIterator(_root);
+  }
+
+  XNodeIterator end()
+  {
+    return XNodeIterator();
+  }
+
+private:
+
+  XQNodePtr _root;
+
+};
+
+//void inspect( XQNodePtr node, int offSet=0 );
+void inspect( const XQNodePtr& node, int indent=0 );
+
+Q_DECLARE_METATYPE(XQNodePtr);
+
+
+#endif // XQNODE_H