func：添加导入导出数据（未完成）。

src/data_edit.cpp

@@ -0,0 +1,73 @@
+#include "data_edit.h"
+#include "ui_data_edit.h"
+#include <QScreen>
+#include <QClipboard>
+#include <tinyxml2.h>
+#include "../public_def.h"
+
+CDataEdit::CDataEdit(QWidget* parent) : QDialog(parent), ui(new Ui::CDataEdit)
+{
+    ui->setupUi(this);
+
+    // setMinimumWidth(600);
+    setWindowTitle(u8"源属性编辑");
+
+    connect(ui->btnExit, &QPushButton::clicked, this, [&]() { close(); });
+    connect(ui->btnAdd, &QPushButton::clicked, this, [&]() { import_data(); });
+    connect(ui->btnCopy, &QPushButton::clicked, this, [&]() {
+        QClipboard* clip = QApplication::clipboard();
+        clip->setText(ui->plainTextEdit->toPlainText());
+    });
+}
+
+CDataEdit::~CDataEdit()
+{
+    delete ui;
+}
+
+void CDataEdit::set_data(const QString& data)
+{
+    data_ = data;
+}
+
+void CDataEdit::import_data()
+{
+    QString data = ui->plainTextEdit->toPlainText();
+    if (data.trimmed().isEmpty()) {
+        CUtil::msg(this, u8"内容为空");
+        return;
+    }
+    QStringList list = data.trimmed().split("\n");
+    for (int i = 0; i < list.size(); ++i) {
+        const QString& item = list[i];
+        if (item.trimmed().isEmpty()) {
+            continue;
+        }
+        tinyxml2::XMLDocument doc;
+        doc.Parse(item.toStdString().c_str());
+        if (doc.Error()) {
+            CUtil::msg(this, u8"不是合法的xml语句。");
+            return;
+        }
+    }
+}
+
+void CDataEdit::showEvent(QShowEvent* event)
+{
+    show_before();
+    QDialog::showEvent(event);
+}
+
+void CDataEdit::show_before()
+{
+    QScreen* primaryScreen = QGuiApplication::primaryScreen();
+    QRect    screenGeometry = primaryScreen->geometry();
+    setMinimumWidth(screenGeometry.width() * 0.8);
+    if (is_import_) {
+        ui->btnCopy->setVisible(false);
+    } else {
+        ui->btnAdd->setVisible(false);
+        ui->plainTextEdit->clear();
+        ui->plainTextEdit->appendPlainText(data_);
+    }
+}

src/data_edit.h

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+#ifndef DATA_EDIT_H
+#define DATA_EDIT_H
+
+#include <QDialog>
+
+namespace Ui {
+class CDataEdit;
+}
+
+class CDataEdit : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit CDataEdit(QWidget* parent = nullptr);
+    ~CDataEdit();
+
+public:
+    void set_data(const QString& data);
+    void import_data();
+
+protected:
+    void showEvent(QShowEvent* event) override;
+    void show_before();
+
+public:
+    bool is_import_{false};
+    bool is_import_sucess_{false};
+
+private:
+    Ui::CDataEdit* ui;
+    QString        data_{};
+};
+
+#endif   // DATA_EDIT_H

src/data_edit.ui

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+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>CDataEdit</class>
+ <widget class="QDialog" name="CDataEdit">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>643</width>
+    <height>407</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Dialog</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <item>
+    <widget class="QPlainTextEdit" name="plainTextEdit"/>
+   </item>
+   <item>
+    <layout class="QHBoxLayout" name="horizontalLayout">
+     <item>
+      <spacer name="horizontalSpacer">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>40</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item>
+      <widget class="QPushButton" name="btnCopy">
+       <property name="text">
+        <string>复制</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QPushButton" name="btnAdd">
+       <property name="text">
+        <string>添加</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QPushButton" name="btnExit">
+       <property name="text">
+        <string>退出</string>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>