logplus/logPlus/qmytreewidget.cpp

#include "qmytreewidget.h"
#include "ObjWellLog.h"
#include<QMessageBox>

QMyTreeWidget::QMyTreeWidget(QWidget *parent)
{
    setDragEnabled(true);
    setDefaultDropAction(Qt::MoveAction);  // 或者 Qt::CopyAction，取决于你的需求
    setAcceptDrops(true);
    setDropIndicatorShown(true);
}

QMyTreeWidget::~QMyTreeWidget()
{

}

QString QMyTreeWidget::getCurrentItemString()
{
    QString sret = "";
    QTreeWidgetItem *item = currentItem();
    if(!item)
        return sret;
    if(item->parent()==NULL)
    {
        return sret;
    }

    QString strTreeTag = item->data(0, Qt::UserRole).toString();
    if (strTreeTag == "wellItem")//井次名称
    {
        //曲线
        QString strSlfName = item->data(0, Qt::UserRole+1).toString();
        //井名
        QString strWellName = item->text(0);

        sret = strSlfName + "#@@#"+ strWellName + "#@@#" +item->text(0)+ "#@@#" + strTreeTag;
    }
    return sret;
}
void QMyTreeWidget::closeEditor ( QWidget * editor, QAbstractItemDelegate::EndEditHint hint )
{
    QTreeWidget::closeEditor(editor,hint);
    QTreeWidgetItem *item = this->currentItem();
    QString strSlfName = item->data(0, Qt::UserRole+1).toString();
    QString strOldName = item->data(0, Qt::UserRole + 3).toString();
    QString strNewName = item->text(0).toUpper();
    if(!IsValidNmae(strNewName))
    {
        QString value="A~Za~z0~9#_-*\nαβγδεζηθικλμνξοπρστυφχψ";
        QMessageBox::warning(NULL,"非法命名",strNewName+"不符合命名规则\r\n仅支持下列符号：\n"+value);
        this->currentItem()->setText(0,strOldName);
 //        this->setItemSelected(item,true);
        return;
    }
	//whp 2020.7.19end
	if(strOldName==strNewName) {
		return;
	}
    QString strTreeTag = item->data(0, Qt::UserRole).toString();
    if (strTreeTag != "wellItem" && strTreeTag != "wellname")//重命名表格、曲线、波列、参数表
    {
        CObjWellLog*  pcopyingwelllog= new CObjWellLog();
        pcopyingwelllog->SetSlfFileName(strSlfName);
        pcopyingwelllog->SetName(strOldName);
        if(!pcopyingwelllog->RenName(strNewName))
        {
            this->currentItem()->setText(0,strOldName);
            //			pObj->SetName(strOldName);
            // AfxMessageBox("无法改名，可能因重名等问题所致！");
            QMessageBox::information(NULL, "提示", "无法改名，可能因重名等问题所致！");
        }
        //else {
        //::GetObjectEvent().OnDeAttchData(pObj->GetSlfFileName(),strOldName);
        //::GetObjectEvent().OnRefreshData(pObj->GetSlfFileName(),strNewName);
        //}
        delete pcopyingwelllog;
        item->setData(0, Qt::UserRole + 3, strNewName); // 存储额外数据，波列卡
    }

    if (strTreeTag == "wellItem" || strTreeTag == "wellname")//井次或井名
        emit closeTreeEditor();
    return;
}
void QMyTreeWidget::startDrag(Qt::DropActions supportedActions)
{
    if(currentItem()->parent()==NULL)
    {
        //分类节点不能拖动
        return;
    }

    // 创建拖拽事件
    QTreeWidgetItem *item = currentItem();
    QString strTreeTag = item->data(0, Qt::UserRole).toString();
    if (strTreeTag == "root")
    {
        //根节点(项目名称)
    }
    else if (strTreeTag == "curveObject" || strTreeTag == "waveObject" || strTreeTag == "tableObject"){
        //曲线
        QString strSlfName = item->data(0, Qt::UserRole+1).toString();
        QString strWellName = item->data(0, Qt::UserRole+2).toString();

        //曲线对象(AC、BS...)
        QMimeData *mimeData = new QMimeData;
        // 这里需要根据你的item数据来设置mimeData，例如：
        mimeData->setText(strSlfName + "#@@#"+ strWellName + "#@@#" +item->text(0)+ "#@@#" + strTreeTag);
        // 创建QDrag对象
        QDrag *drag = new QDrag(this);
        drag->setMimeData(mimeData);
        // 可以设置拖拽时的光标图标
        QRect itemRect = visualItemRect(item); // 获取项的矩形区域
        QPixmap itemPixmap = QWidget::grab(itemRect);//QPixmap::grabWidget(this, itemRect); // 获取项的屏幕截图
        // 调整拖拽光标的热点，使其位于截图的中心
        drag->setPixmap(itemPixmap);

        // 执行拖拽操作
        Qt::DropAction dropAction = drag->exec(supportedActions, Qt::MoveAction);
        /*if (dropAction == Qt::MoveAction) {
            // 处理拖拽结束的逻辑，例如从界面上移除拖拽的项
            for (QTreeWidgetItem *item : items) {
                this->takeTopLevelItem(this->indexOfTopLevelItem(item));
            }
        }*/
    }
}