DiagramDesigner/common/source/tools.cpp

#include "tools.h"

int getLevel(QStandardItem *item) {
    int level = 0;
    QStandardItem *parent = item->parent();
    if(parent)
    {
        while (parent) {
            level++;
            parent = parent->parent();
        }
        return level;
    }
    else{
        return -1;
    }
}

QModelIndex findIndex(const QAbstractItemModel* model, const QVariant& target,
                      int role, const QModelIndex& parent) {
    for (int row = 0; row < model->rowCount(parent); ++row) {
        QModelIndex idx = model->index(row, 0, parent); // 假设查找第0列
        if (model->data(idx, role) == target) {
            return idx; // 找到匹配项
        }
        // 递归查找子项
        if (model->hasChildren(idx)) {
            QModelIndex childIdx = findIndex(model, target, role, idx);
            if (childIdx.isValid()) {
                return childIdx;
            }
        }
    }
    return QModelIndex(); // 未找到
}

QStandardItem* deepCloneItem(const QStandardItem* source) {
    if (!source) return nullptr;

    // 使用 clone() 方法创建副本
    QStandardItem* clone = source->clone();

    // 递归复制所有子项
    for (int row = 0; row < source->rowCount(); ++row) {
        for (int col = 0; col < source->columnCount(); ++col) {
            if (QStandardItem* child = source->child(row, col)) {
                clone->setChild(row, col, deepCloneItem(child));
            }
        }
    }

    return clone;
}

QStandardItemModel* deepCloneModel(const QStandardItemModel* source) {
    if (source == nullptr) return nullptr;

    // 设置相同的行列数
    QStandardItemModel* dest = new QStandardItemModel(source->parent());

    dest->setRowCount(source->rowCount());
    dest->setColumnCount(source->columnCount());

    // 复制所有数据项
    for (int row = 0; row < source->rowCount(); ++row) {
        for (int col = 0; col < source->columnCount(); ++col) {
            if (QStandardItem* item = source->item(row, col)) {
                dest->setItem(row, col, deepCloneItem(item));
            }
        }
    }
    return dest;
}