fluent_widgets_pyside6/app/view/cood_forms_interface.py

# coding:utf-8
import sys
import os
from PySide6.QtCore import (
    Qt,
    QSize,
    QPoint,
    QEvent,
    Slot,
    Signal,
    QThread,
    QMutex,
    QWaitCondition,
)

from PySide6.QtGui import QIcon, QColor, QAction

from PySide6.QtWidgets import (
    QApplication,
    QWidget,
    QVBoxLayout,
    QHBoxLayout,
    QStackedWidget,
    QMessageBox,
    QLabel,
    QFrame,
    QTreeWidgetItem,
    QTreeWidgetItemIterator,
    QTableWidget,
    QTableWidgetItem,
    QListWidget,
    QListWidgetItem,
    QInputDialog,
    QMenu,
    QSizePolicy,
    QDialog,
)

from qfluentwidgets import (
    TableWidget,
    HorizontalFlipView,
    TabBar,
    TabCloseButtonDisplayMode,
    setTheme,
    isDarkTheme,
    Theme,
    PushButton,
    FluentIcon as FIF,
    Dialog,
)

from .gallery_interface import GalleryInterface
from ..common.translator import Translator
from ..common.style_sheet import StyleSheet

import sqlite3


class CoodFormsInterface(GalleryInterface):
    """Cood Forms interface"""

    def __init__(self, parent=None):
        t = Translator()
        super().__init__(title=t.view, subtitle="CoordinateFormsWidget", parent=parent)
        self.setObjectName("coodFormsInterface")

        # CoordinateFormsWidget
        self.formsWidget = CoordinateFormsWidget(self)
        card = self.addExampleCard(
            title=self.tr(""),
            widget=self.formsWidget,
            sourcePath=".",
            stretch=1,
        )
        card.topLayout.setContentsMargins(6, 0, 6, 16)

        # 动态设置高度
        self.__connectMainWindowSignal()

    def __connectMainWindowSignal(self):
        main_window = self.window()
        if main_window:
            self.onWindowHeightChanged(main_window.height() - 160)  # 设置窗口初始高度
            main_window.heightChanged.connect(self.onWindowHeightChanged)

    def onWindowHeightChanged(self, new_height):
        self.formsWidget.setFixedHeight(new_height - 160)


class FormDatabase:
    def __init__(self, db_path):
        self.db_path = db_path
        self.conn = None  # 数据库连接对象
        self.cursor = None  # 游标对象

    def init_database(self):
        """初始化SQLite数据库, 不存在则创建form_info表和form_data表"""
        try:
            # 数据库文件路径（db目录下的forms.db）
            os.makedirs(
                os.path.dirname(self.db_path), exist_ok=True
            )  # 确保数据库目录存在
            cursor = self.__connect()

            # 创建表单信息表 form_info
            cursor.execute(
                """
            CREATE TABLE IF NOT EXISTS form_info (
                form_id INTEGER PRIMARY KEY AUTOINCREMENT,
                form_name TEXT NOT NULL UNIQUE,  -- 表单名称唯一
                create_time TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
                update_time TIMESTAMP DEFAULT CURRENT_TIMESTAMP
            )
            """
            )

            # 创建表单数据表form_data（存储每行数据）
            cursor.execute(
                """
            CREATE TABLE IF NOT EXISTS form_data (
                data_id INTEGER PRIMARY KEY AUTOINCREMENT,
                form_id INTEGER NOT NULL,  -- 关联表单信息表的 form_id
                row_index INTEGER NOT NULL,  -- 行号(从0开始)
                x TEXT, 
                y TEXT,
                z TEXT,
                rx TEXT,
                ry TEXT,
                rz TEXT,
                FOREIGN KEY (form_id) REFERENCES form_info(form_id) ON DELETE CASCADE,
                UNIQUE(form_id, row_index)  -- 确保一行数据只存一次
            )
            """
            )

            # 自动更新表单修改时间
            # 更新表单修改时间的触发器
            cursor.execute(
                """
            CREATE TRIGGER IF NOT EXISTS update_form_time 
            AFTER UPDATE ON form_data
            FOR EACH ROW
            BEGIN
                UPDATE form_info SET update_time = CURRENT_TIMESTAMP WHERE form_id = NEW.form_id;
            END
            """
            )

            # 提交，初始化数据库成功
            self.commit_and_close()

        except Exception as exc:
            self.rollback_and_close()
            raise exc

    def __connect(self):
        """连接数据库并获取游标"""
        if not self.conn:
            self.conn = sqlite3.connect(self.db_path)
            self.cursor = self.conn.cursor()
        return self.cursor

    def commit_and_close(self):
        """提交事务并关闭连接"""
        if self.conn:
            self.conn.commit()  # 提交事务
            self.conn.close()  # 关闭连接
            self.conn = None
            self.cursor = None

    def rollback_and_close(self):
        """回滚事务并关闭连接"""
        if self.conn:
            self.conn.rollback()  # 回滚事务
            self.conn.close()  # 关闭连接
            self.conn = None
            self.cursor = None

    def check_form_exists(self, form_name):
        """检查表单是否已经存在
        成功返回form_id
        失败返回None
        """
        try:
            cursor = self.__connect()
            cursor.execute(
                "SELECT form_id FROM form_info WHERE form_name = ?", (form_name,)
            )
            result = cursor.fetchone()
            return result[0] if result else None
        except Exception as exc:
            self.rollback_and_close()
            raise exc

    def delete_form_data(self, form_id):
        """删除指定表单的所有数据"""
        try:
            cursor = self.__connect()
            cursor.execute("DELETE FROM form_data WHERE form_id = ?", (form_id,))
        except Exception as exc:
            self.rollback_and_close()
            raise exc

    def add_new_form(self, form_name):
        """新增表单 (返回新表单的form_id)"""
        try:
            cursor = self.__connect()
            cursor.execute("INSERT INTO form_info (form_name) VALUES (?)", (form_name,))
            return cursor.lastrowid  # 返回新插入的ID
        except Exception as exc:
            self.rollback_and_close()
            raise exc

    def insert_form_data(self, form_id, data_rows):
        """批量插入form_data表"""
        try:
            cursor = self.__connect()
            for row in data_rows:
                # row格式: [row_idx, x, y, z, rx, ry, rz]
                cursor.execute(
                    """INSERT INTO form_data 
                    (form_id, row_index, x, y, z, rx, ry, rz) 
                    VALUES (?, ?, ?, ?, ?, ?, ?, ?)""",
                    (form_id, row[0], row[1], row[2], row[3], row[4], row[5], row[6]),
                )
        except Exception as exc:
            self.rollback_and_close()
            raise exc

    def get_all_form_id_name(self):
        """获取所有form_id 和 对应的 form_name"""
        try:
            cursor = self.__connect()
            cursor.execute(
                "SELECT form_id, form_name FROM form_info ORDER BY create_time"
            )
            # [(form_id1, form_name1), (form_id2, form_name2), ...]
            form_id_name = cursor.fetchall()
            return form_id_name
        except Exception as exc:
            self.rollback_and_close()
            raise exc

    def get_row_idx_coordinate_list(self, form_id):
        """根据form_id查询对应的表单数据 data_rows (包含行索引row_idx, x, y, z, rx, ry, rz)"""
        try:
            cursor = self.__connect()
            cursor.execute(
                "SELECT row_index, x, y, z, rx, ry, rz FROM form_data "
                "WHERE form_id = ?",
                (form_id,),
            )
            #  [(row_idx, x, y, z, rx, ry, rz), ...]
            data_rows = cursor.fetchall()
            return data_rows
        except Exception as exc:
            self.rollback_and_close()
            raise exc

    def get_sorted_coordinate_list(self, form_name):
        """
        form_name 等同于线名
        form_name 存在, 返回 [(x1, y1, z1, rx1, ry1, rz1), ......], 按照row_idx排序
        不存在, 返回 None
        """
        pass

    # 包含 坐标 和 对应的状态（运动类型？点位类型？）
    def get_coordinate_state_list(self, form_name):
        pass


# 数据库保存线程
class DatabaseSaveThread(QThread):
    # 信号1：需要用户确认是否覆盖数据库中的数据
    need_confirm_signal = Signal()
    # 信号2：数据库操作结果
    result_signal = Signal(str)

    def __init__(self, db_path, form_name, data_rows):
        super().__init__()
        self.db_path = db_path
        self.form_name = form_name
        self.data_rows = data_rows  # 主线程传递过来的UI数据
        self.user_choice = None  # 存储用户选择（True=覆盖，False=取消）
        self.mutex = QMutex()
        self.condition = QWaitCondition()

    def run(self):
        try:
            db = FormDatabase(self.db_path)

            # 初始化数据库，至少执行一次
            db.init_database()

            # 检查form_name名的表单是否已经存在
            exist_form_id = db.check_form_exists(self.form_name)

            if exist_form_id is not None:
                # 存在表单，发送信号给主线程, 向用户请求确认
                self.need_confirm_signal.emit()

                # 等待UI线程传入用户选择
                self.wait_for_user_choice()

                if not self.user_choice:
                    # 用户选择不覆盖，结束操作
                    self.result_signal.emit(f"已取消，表单「{self.form_name}」未修改")
                    return

                # 用户选择覆盖：删除旧数据
                db.delete_form_data(exist_form_id)
                # 插入新数据（复用exist_form_id）
                db.insert_form_data(exist_form_id, self.data_rows)
                self.result_signal.emit(f"表单「{self.form_name}」已覆盖并保存")

            else:
                # 表单不存在：直接新增
                new_form_id = db.add_new_form(self.form_name)
                db.insert_form_data(new_form_id, self.data_rows)
                self.result_signal.emit(f"表单「{self.form_name}」已保存")

            # 操作完成，提交并关闭连接
            db.commit_and_close()
            # db.rollback_and_close()

        except Exception as e:
            # 数据库操作异常
            self.result_signal.emit(f"保存失败：{str(e)}")

    def wait_for_user_choice(self):
        """阻塞线程，等待用户选择（条件变量）"""
        self.mutex.lock()
        # 等待，直到set_user_choice调用wakeAll()
        self.condition.wait(self.mutex)
        self.mutex.unlock()

    def set_user_choice(self, choice):
        """UI线程调用: 设置用户选择并唤醒数据库保存操作线程"""
        self.mutex.lock()
        self.user_choice = choice
        self.condition.wakeAll()  # 唤醒等待的数据库保存操作线程
        self.mutex.unlock()


# 数据库读取操作线程
class DatabaseReadThread(QThread):
    # 信号1: 从form_info 读取所有的 id-name 发送
    # [(form_id1, form_name1),...]
    form_id_name_signal = Signal(list)

    # 信号2: 从 from_data 读取所有的 选择的表单的数据发送
    # {form_name1: data_rows1, ...}
    form_data_signal = Signal(dict)

    # 信号3: 状态信息
    state_signal = Signal(str)

    def __init__(self, db_path):
        super().__init__()
        self.db_path = db_path
        self.selected_form_id_name = None  # 选择的 表单id-name

        # 初始化信号量
        self.mutex = QMutex()
        self.condition = QWaitCondition()

    def run(self):
        try:
            db = FormDatabase(self.db_path)

            # 初始化数据库
            db.init_database()

            # 从form_info表 查询所有的 form_id 和 form_name
            all_form_id_name = db.get_all_form_id_name()
            self.form_id_name_signal.emit(all_form_id_name)

            # 等待用户选择 想要查看的 form
            self.wait_for_selection()

            if not self.selected_form_id_name:
                self.state_signal.emit("未选择任何表单")
                return

            form_date_dict = dict()
            for form_id, form_name in self.selected_form_id_name:
                data_rows = db.get_row_idx_coordinate_list(form_id)
                form_date_dict[form_name] = data_rows

            self.form_data_signal.emit(form_date_dict)
            db.commit_and_close()

        except Exception as exc:
            # 数据库异常
            self.state_signal.emit(f"读取失败：{str(exc)}")

    def wait_for_selection(self):
        self.mutex.lock()
        self.condition.wait(self.mutex)
        self.mutex.unlock()

    def set_selected_forms(self, selected_form_id_name):
        """UI线程调用, 设置选择的 表单的 id-name"""
        self.mutex.lock()
        self.selected_form_id_name = selected_form_id_name
        self.condition.wakeAll()
        self.mutex.unlock()


class CoordinateTableWidget(QWidget):
    # 选中行更新信号
    update_table_signal = Signal()

    # 移动到选中行的 坐标的信号
    move_to_coodinate_signal = Signal(list)

    def __init__(
        self, parent=None, form_name="default", hideVHeader=False, initRowCount=True
    ):
        super().__init__(parent=parent)
        # 保存当前表单名，根据form_name设置行名
        self.form_name = form_name
        self.hideVHeader = hideVHeader  # 是否隐藏行名
        self.initRowCount = initRowCount  # 是否需要初始的行数
        self.setObjectName("CoordinateTableWidget")

        # 主布局
        self.mainLayout = QVBoxLayout(self)
        self.mainLayout.setContentsMargins(30, 30, 30, 30)
        self.mainLayout.setSpacing(20)

        # 创建表格
        self.createTable()

        # 创建按钮区域
        self.createButtons()

        # 状态标签
        self.status_label = QLabel("未选中任何行")
        self.mainLayout.addWidget(self.status_label)

        # 应用主题样式
        self.applyThemeStyle()
        # StyleSheet.VIEW_INTERFACE.apply(self)

        # 初始化数据（行名会关联表单名）
        self.initTableData()

    # 更新表单名（供外部调用，修改后同步更新行名）
    def update_form_name(self, new_name):
        self.form_name = new_name
        self.updateRowHeaders()  # 同步更新所有行名

    def createTable(self):
        self.table = TableWidget(self)
        self.table.setBorderVisible(True)
        self.table.setBorderRadius(8)
        self.table.setWordWrap(False)

        # 表单的初始列数和行数
        if self.initRowCount:
            self.table.setRowCount(5)  # 表的行数

        self.table.setColumnCount(6)  # 表的列数

        self.table.setHorizontalHeaderLabels(["x", "y", "z", "rx", "ry", "rz"])
        self.table.horizontalHeader().setStyleSheet(
            "QHeaderView::section {font-size: 19px; font-weight: bold;}"
        )
        self.table.verticalHeader().setStyleSheet(
            "QHeaderView::section {font-size: 14px; font-weight: bold;}"
        )

        if self.hideVHeader:
            self.table.verticalHeader().hide()  # 隐藏行标题（行名）

        for i in range(6):
            self.table.horizontalHeader().setSectionResizeMode(
                i, self.table.horizontalHeader().ResizeMode.Stretch
            )

        self.table.setSelectionBehavior(self.table.SelectionBehavior.SelectRows)
        self.table.setSelectionMode(self.table.SelectionMode.ExtendedSelection)
        self.table.setContextMenuPolicy(Qt.ContextMenuPolicy.CustomContextMenu)
        self.table.customContextMenuRequested.connect(self.showContextMenu)
        self.table.itemSelectionChanged.connect(self.onCellSelected)
        self.mainLayout.addWidget(self.table, stretch=1)

    def createButtons(self):
        btnLayout = QHBoxLayout()
        btnLayout.setSpacing(15)

        self.addBtn = PushButton("添加行")
        self.addBtn.clicked.connect(self.addNewRow)
        btnLayout.addWidget(self.addBtn)

        self.deleteBtn = PushButton("删除行")
        self.deleteBtn.clicked.connect(self.deleteSelectedRow)
        btnLayout.addWidget(self.deleteBtn)

        self.setBtn = PushButton("设置点位")
        self.setBtn.clicked.connect(self.setSelectedRow)
        btnLayout.addWidget(self.setBtn)

        self.resetBtn = PushButton("重置点位")
        self.resetBtn.clicked.connect(self.resetSelectedRow)
        btnLayout.addWidget(self.resetBtn)

        # 移动按钮
        self.readBtn = PushButton("移动")
        self.readBtn.setIcon(FIF.RIGHT_ARROW.icon())  # FOLDER
        self.readBtn.clicked.connect(self.moveToSelectedCoodinate)
        btnLayout.addWidget(self.readBtn)

        # 保存按钮
        self.saveBtn = PushButton("保存数据")
        self.saveBtn.setIcon(FIF.SAVE.icon())  # 使用保存图标
        self.saveBtn.clicked.connect(self.saveToDatabase)  # 关联保存函数
        btnLayout.addWidget(self.saveBtn)

        self.mainLayout.addLayout(btnLayout)

    def get_ui_data(self):
        """从表格UI中获取数据 [[行索引row_idx, x, y, z, rx, ry, rz], ......]"""
        row_count = self.table.rowCount()
        column_count = self.table.columnCount()
        data_rows = []
        for row_idx in range(row_count):
            row_data = [row_idx]
            for col_idx in range(column_count):
                item = self.table.item(row_idx, col_idx)

                # 数据合法性和完整性判定: 保证获取到的是有效数据
                row_data.append(
                    item.text().strip() if item and item.text().strip() else "-9999"
                )  # 该表格为空，填充 -9999

            # 放入这一行的数据 行索引row_idx, x, y, z, rx, ry, rz
            data_rows.append(row_data)

        return data_rows

    def showConfirmDialog(self):
        """显示覆盖确认对话框"""
        msg_box = QMessageBox(self)
        msg_box.setWindowTitle("覆盖确认")
        msg_box.setText(f"表单「{self.form_name}」已存在，是否覆盖？")
        msg_box.setStandardButtons(QMessageBox.Yes | QMessageBox.No)
        msg_box.setDefaultButton(QMessageBox.No)
        msg_box.setStyleSheet("QMessageBox QLabel { color: black !important; }")
        reply = msg_box.exec()

        # 将用户选择（Yes=True，No=False）传给线程，唤醒数据库线程继续执行
        if (
            hasattr(self, "db_thread")
            and self.db_thread is not None
            and not self.db_thread.isFinished()
        ):
            self.db_thread.set_user_choice(reply == QMessageBox.Yes)

    def applyThemeStyle(self):
        if isDarkTheme():
            self.setStyleSheet(
                """
                #CoordinateTableWidget {background-color: rgb(30, 30, 30);}
                #CoordinateTableWidget QLabel {font-size: 16px; color: rgb(240, 240, 240);}
                #CoordinateTableWidget QTableWidget {color: rgb(240, 240, 240); gridline-color: rgb(60, 60, 60);}
                #CoordinateTableWidget QHeaderView::section {
                    background-color: rgb(40, 40, 40);
                    color: rgb(200, 200, 200);
                    border: 1px solid rgb(60, 60, 60);
                    padding: 5px;
                }
                """
            )
        else:
            self.setStyleSheet(
                """
                #CoordinateTableWidget {background-color: rgb(245, 245, 245);}
                #CoordinateTableWidget QLabel {font-size: 16px; color: rgb(60, 60, 60);}
                #CoordinateTableWidget QTableWidget {color: rgb(60, 60, 60); gridline-color: rgb(200, 200, 200);}
                #CoordinateTableWidget QHeaderView::section {
                    background-color: rgb(230, 230, 230);
                    color: rgb(60, 60, 60);
                    border: 1px solid rgb(200, 200, 200);
                    padding: 5px;
                }
                """
            )

    # 初始化表
    def initTableData(self):
        for row in range(self.table.rowCount()):
            # 行名格式：表单名_行号
            header_item = QTableWidgetItem(f"{self.form_name}_{row+1}")
            header_item.setTextAlignment(Qt.AlignCenter)
            self.setThemeTextColor(header_item)
            self.table.setVerticalHeaderItem(row, header_item)

            for col in range(self.table.columnCount()):
                item = QTableWidgetItem("")
                item.setTextAlignment(Qt.AlignCenter)
                self.setThemeTextColor(item)
                self.table.setItem(row, col, item)

    def setThemeTextColor(self, item):
        item.setForeground(Qt.white if isDarkTheme() else Qt.black)

    def showNoSelectWarning(self, msg):
        msg_box = QMessageBox(self)
        msg_box.setIcon(QMessageBox.Warning)
        msg_box.setWindowTitle("提示")
        msg_box.setText(msg)
        msg_box.setStandardButtons(QMessageBox.Ok)
        msg_box.setStyleSheet("QLabel{color: black;}")
        msg_box.exec()

    def update_table_data(self, positionList=None):
        selectedRows = self.getSelectedRows()
        for row in selectedRows:
            for col in range(self.table.columnCount()):
                item = QTableWidgetItem(
                    str(positionList[col])
                    if (positionList and 0 <= col < len(positionList))
                    else "-9999"
                )
                item.setTextAlignment(Qt.AlignCenter)
                self.setThemeTextColor(item)
                self.table.setItem(row, col, item)

        if positionList:
            self.status_label.setText(f"已将选中行设置为{positionList}")
        else:
            self.status_label.setText(
                "已将选中行设置为[-9999, -9999, -9999, -9999, -9999, -9999]"
            )

    """
     ======================================槽函数=================================
    """

    # 添加新行时，行名同样关联当前表单名
    def addNewRow(self):
        # 检查有没有选中行
        # 如果有选中行，在选中行的最下方新增一行
        # 没有选中行，直接在最下方新增一行
        selected_rows = self.getSelectedRows()
        insert_pos = max(selected_rows) + 1 if selected_rows else self.table.rowCount()

        # 新增一行
        self.table.insertRow(insert_pos)

        # 更新行名
        self.updateRowHeaders()

        # 初始化单元格
        for col in range(self.table.columnCount()):
            item = QTableWidgetItem("")
            item.setTextAlignment(Qt.AlignCenter)
            self.setThemeTextColor(item)
            self.table.setItem(insert_pos, col, item)

        self.status_label.setText(f"已添加第 {insert_pos+1} 行")

    # 删除行
    def deleteSelectedRow(self):
        selectedRows = self.getSelectedRows()
        if not selectedRows:
            self.showNoSelectWarning("请先选中再删除！")
            return

        msg_box = QMessageBox(self)
        msg_box.setWindowTitle("提示")
        rowsStr = ", ".join(map(str, [row + 1 for row in selectedRows]))
        msg_box.setText(f"确定要删除选中的第 {rowsStr} 行吗？")
        msg_box.setStandardButtons(QMessageBox.Yes | QMessageBox.No)
        msg_box.setStyleSheet("QLabel{color: black;}")
        if msg_box.exec() != QMessageBox.Yes:
            return

        for row in sorted(selectedRows, reverse=True):
            self.table.removeRow(row)
        self.updateRowHeaders()  # 删除后重新编号行名
        self.status_label.setText("已删除选中行")

    # 设置选中行
    def setSelectedRow(self):
        selectedRows = self.getSelectedRows()
        if not selectedRows:
            self.showNoSelectWarning("请先选中再设置点位！")
            return

        # 选中行默认设置
        self.update_table_data()

        # 发送选中行设置（更新）信号
        self.update_table_signal.emit()

    # 重置点位
    def resetSelectedRow(self):
        selectedRows = self.getSelectedRows()
        if not selectedRows:
            self.showNoSelectWarning("请先选中再重置！")
            return

        for row in selectedRows:
            for col in range(self.table.columnCount()):
                item = QTableWidgetItem("")
                item.setTextAlignment(Qt.AlignCenter)
                self.setThemeTextColor(item)
                self.table.setItem(row, col, item)

        self.status_label.setText("已重置选中行")

    # 移动
    def moveToSelectedCoodinate(self):
        selectedRows = self.getSelectedRows()
        if not selectedRows:
            self.showNoSelectWarning("请先选中再移动！")
            return

        # 得到选中行的 点位(坐标) 列表，然后发送
        sortedRowIdList = sorted(selectedRows)  # 将选中行的行索引进行排序
        coordinate_rows = list()
        for row_idx in sortedRowIdList:
            row_coordinate = list()  # 保存这一行的坐标
            for col_idx in range(6):  # 0-5 ，这些列为坐标 x, y, z, rx, ry, rz
                item = self.table.item(row_idx, col_idx)

                # 坐标合法性监测

                row_coordinate.append(item.text().strip())

            # 放入这一行的坐标
            # 结果：[[x1, y1, z1, rx1, ry1, rz1], ......]
            # 里面的 x1等都为字符串类型
            coordinate_rows.append(row_coordinate)
        # 发送移动到这些坐标的信号
        self.move_to_coodinate_signal.emit(coordinate_rows)

    # 保存数据
    def saveToDatabase(self):
        # 检查是否已有正在运行的数据库线程
        if hasattr(self, "db_thread") and self.db_thread and self.db_thread.isRunning():
            self.status_label.setText("有未完成的数据库保存操作, 请稍后再试......")
            return

        # 获取UI数据
        data_rows = self.get_ui_data()
        if not data_rows:
            self.status_label.setText("没有数据需要保存")
            return

        # 创建数据库操作线程并启动
        self.db_thread = DatabaseSaveThread(
            db_path="db/forms.db", form_name=self.form_name, data_rows=data_rows
        )

        # 连接信号：线程需要确认时，UI线程弹对话框
        self.db_thread.need_confirm_signal.connect(self.showConfirmDialog)
        # 连接信号：数据库操作线程返回最终结果，UI线程更新 状态标签
        self.db_thread.result_signal.connect(self.status_label.setText)

        # 启动线程
        self.db_thread.start()

    def showContextMenu(self, position):
        """显示右键菜单（复制行数据）"""
        if not self.getSelectedRows():
            return

        menu = QMenu()
        copyAction = QAction("复制此行数据", self)
        copyAction.triggered.connect(self.copyRowData)
        menu.addAction(copyAction)
        menu.exec(self.table.mapToGlobal(position))

    def copyRowData(self):
        """复制选中行数据到剪贴板"""
        selectedRows = self.getSelectedRows()
        if not selectedRows:
            return

        # 目前只支持复制一行数据，
        # 选中多行，默认复制选中的多行中行数最小的那行
        row = selectedRows[0]
        rowData = []
        for col in range(self.table.columnCount()):
            item = self.table.item(row, col)
            rowData.append(item.text() if item else "")

        dataStr = ", ".join(rowData)
        clipboard = QApplication.clipboard()
        clipboard.setText(dataStr)
        self.status_label.setText(f"已复制第 {row + 1} 行的数据: {dataStr}")

    def getSelectedRows(self):
        return list(set(item.row() for item in self.table.selectedItems()))

    def onCellSelected(self):
        selectedRows = self.getSelectedRows()
        if selectedRows:
            self.status_label.setText(
                f"选中行：{', '.join(str(row + 1) for row in selectedRows)}"
            )
        else:
            self.status_label.setText("未选中任何行")

    # 更新行名
    def updateRowHeaders(self):
        for row in range(self.table.rowCount()):
            # 行名随表单名动态变化：表单名_行号
            header_item = QTableWidgetItem(f"{self.form_name}_{row+1}")
            header_item.setTextAlignment(Qt.AlignCenter)
            self.setThemeTextColor(header_item)
            self.table.setVerticalHeaderItem(row, header_item)


class CoordinateFormsWidget(QWidget):
    # 表单中 更新信号 (用于更新表单中的选中行数据)
    form_update_signal = Signal(CoordinateTableWidget)

    # 表单中 移动到坐标的信号 (用于机器臂的移动)
    form_move_signal = Signal(list)

    def __init__(self, parent=None):
        super().__init__(parent)
        self.setWindowTitle("Coordinate Forms")
        self.setObjectName("CoordinateFormsWidget")
        self.resize(1100, 750)
        self.formTotalCnt = 0  # 创建过的总表单数

        # 主布局
        self.mainLayout = QVBoxLayout(self)
        self.mainLayout.setContentsMargins(0, 0, 0, 0)
        self.mainLayout.setSpacing(0)

        # 标签栏（支持双击修改名称）
        self.tabBar = TabBar(self)
        self.tabBar.setMovable(True)
        self.tabBar.setTabMaximumWidth(200)
        self.tabBar.setCloseButtonDisplayMode(TabCloseButtonDisplayMode.ON_HOVER)

        # 绑定槽函数
        self.tabBar.tabAddRequested.connect(self.addNewForm)
        self.tabBar.tabCloseRequested.connect(self.closeForm)
        self.tabBar.currentChanged.connect(self.switchForm)

        # 给tabBar安装事件过滤器，用于监听双击事件
        self.tabBar.installEventFilter(self)
        self.mainLayout.addWidget(self.tabBar)

        # 表单内容区
        self.formStack = QStackedWidget(self)
        self.formStack.setObjectName("CoordinateFormStack")
        self.mainLayout.addWidget(self.formStack)

        # 读取按钮
        self.readBtn = PushButton("读取数据")
        self.readBtn.setIcon(FIF.LIBRARY.icon())
        self.readBtn.clicked.connect(self.readFromDatabase)
        self.mainLayout.addWidget(self.readBtn)

        # 初始化第一个表单
        self.initFirstForm()

        # 初始化样式，应用主题样式
        self.applyThemeStyle()

    def applyThemeStyle(self):
        """根据当前主题应用样式"""
        if isDarkTheme():
            # 深色主题样式
            self.setStyleSheet(
                """
                #CoordinateFormStack {
                    background-color: rgb(30, 30, 30);  /* 堆叠窗口背景设为深色 */
                }
                #CoordinateFormsWidget {
                    background-color: rgb(30, 30, 30);  /* 主窗口背景设为深色 */
                }
            """
            )
        else:
            # 浅色主题样式
            self.setStyleSheet(
                """
                #CoordinateFormStack {
                    background-color: rgb(245, 245, 245);  /* 堆叠窗口背景设为浅色 */
                }
                #CoordinateFormsWidget {
                    background-color: rgb(245, 245, 245);  /* 主窗口背景设为浅色 */
                }
            """
            )

    # 事件过滤器：监听TabBar的鼠标双击事件
    def eventFilter(self, obj, event):
        # 只处理TabBar的双击事件
        if obj == self.tabBar and event.type() == QEvent.MouseButtonDblClick:
            if event.button() == Qt.LeftButton:  # 左键双击
                # 获取双击位置（相对于TabBar）
                pos = event.position().toPoint()
                # 判断双击位置是否在标签区域内
                tab_region = self.tabBar.tabRegion()
                if tab_region.contains(pos):
                    # 计算双击的是哪个标签
                    index = self.getTabIndexByPos(pos)
                    if index != -1:
                        self.renameForm(index)  # 调用修改表单名的方法
                        return True  # 事件已处理
        return super().eventFilter(obj, event)

    # 根据点击位置计算对应的标签索引
    def getTabIndexByPos(self, pos):
        """通过坐标判断双击的是哪个标签"""
        x = 0
        for i in range(self.tabBar.count()):
            # 获取第i个标签的宽度
            tab_rect = self.tabBar.tabRect(i)
            if x <= pos.x() < x + tab_rect.width():
                return i  # 返回标签索引
            x += tab_rect.width()
        return -1  # 未命中任何标签

    # 初始化第一个表单
    def initFirstForm(self):
        self.formTotalCnt += 1  # 1
        firstFormName = f"default"
        formKey = f"form_{self.formTotalCnt}"  # 唯一标识, form_1

        # 创建表单实例时传入表单名
        newForm = CoordinateTableWidget(form_name=firstFormName, parent=self)
        newForm.update_table_signal.connect(self.handleFormUpdate)
        newForm.move_to_coodinate_signal.connect(self.form_move_signal)

        self.tabBar.addTab(routeKey=formKey, text=firstFormName, icon=FIF.TILES.icon())
        self.formStack.addWidget(newForm)

    # 添加新表单
    def addNewForm(self):
        """添加新表单（带自定义名称输入）"""
        self.formTotalCnt += 1
        formCount = self.tabBar.count()
        defaultName = f"default{formCount}"

        # 弹出输入框让用户输入表单名
        # formName, ok = QInputDialog.getText(
        #     self, "创建新表单名称", "请输入新表单的名称：", text=defaultName
        # )

        formName, ok = QInputDialog.getText(
            self, "请输入新创建的表单名", "", text=defaultName
        )

        # 用户取消，不添加新表单
        if not ok:
            return

        # 用户输入为空，使用默认名称
        if not formName.strip():
            formName = defaultName

        formKey = f"form_{self.formTotalCnt}"  # 唯一标识

        # 创建表单实例时传入表单名
        newForm = CoordinateTableWidget(form_name=formName, parent=self)
        newForm.update_table_signal.connect(self.handleFormUpdate)
        newForm.move_to_coodinate_signal.connect(self.form_move_signal)

        self.tabBar.addTab(routeKey=formKey, text=formName, icon=FIF.TILES.icon())
        self.formStack.addWidget(newForm)

        # 切换到新创建的表单, 并同步内容
        self.tabBar.setCurrentIndex(self.tabBar.count() - 1)
        self.tabBar.currentChanged.emit(self.tabBar.currentIndex())

    # 关闭表单
    def closeForm(self, index):
        # if self.tabBar.count() <= 1:  # 必须保留一个表单
        #     msg_box = QMessageBox(self)
        #     msg_box.setIcon(QMessageBox.Warning)
        #     msg_box.setWindowTitle("提示")
        #     msg_box.setText("至少保留一个表单")
        #     msg_box.setStandardButtons(QMessageBox.Ok)
        #     msg_box.setStyleSheet("QMessageBox QLabel { color: black !important; }")
        #     msg_box.exec()
        #     return

        self.tabBar.removeTab(index)
        formToRemove = self.formStack.widget(index)
        self.formStack.removeWidget(formToRemove)
        formToRemove.deleteLater()

    def switchForm(self, index):
        if 0 <= index < self.formStack.count():
            self.formStack.setCurrentIndex(index)

    # 更新表单名
    def renameForm(self, index):
        """双击标签修改表单名，并同步更新行名"""
        if index < 0 or index >= self.tabBar.count():
            return

        # 获取当前表单名作为默认值
        currentName = self.tabBar.tabText(index)

        # 弹出输入框修改名称
        # newName, ok = QInputDialog.getText(
        #     self, "修改表单名称", "请输入新的表单名称：", text=currentName
        # )
        newName, ok = QInputDialog.getText(
            self, "请输入修改后的表单名", "", text=currentName
        )
        if not ok or not newName.strip():
            return  # 取消或空输入则不修改

        # 更新标签栏显示的名称
        self.tabBar.setTabText(index, newName)

        # 获取对应的表单实例，更新表单并同步更新行名
        formWidget = self.formStack.widget(index)
        if isinstance(formWidget, CoordinateTableWidget):
            formWidget.update_form_name(newName)  # 同步更新行名

    # 处理表单选中行更新
    def handleFormUpdate(self):
        sender_form = self.sender()
        if isinstance(sender_form, CoordinateTableWidget):
            self.form_update_signal.emit(sender_form)

    def readFromDatabase(self):
        """启动读取线程，处理表单选择和数据生成"""
        # 检查是否已有运行中的读取线程
        if (
            hasattr(self, "read_thread")
            and self.read_thread
            and self.read_thread.isRunning()
        ):
            # self.status_label.setText("有未完成的数据库读取操作，请稍后再试......")
            return

        # 创建读取线程
        self.read_thread = DatabaseReadThread(db_path="db/forms.db")

        # bind
        # 连接信号：接收所有表单名，显示选择页面
        self.read_thread.form_id_name_signal.connect(self.showFormSelection)
        # 连接信号：接收表单数据，生成新表单
        self.read_thread.form_data_signal.connect(self.generateNewForms)
        # 连接信号：状态提示 (数据库错误等)
        self.read_thread.state_signal.connect(self.showDatabaseReadWarning)

        # 启动线程
        self.read_thread.start()

    def showDatabaseReadWarning(self, msg):
        msg_box = QMessageBox(self)
        msg_box.setIcon(QMessageBox.Warning)
        msg_box.setWindowTitle("提示")
        msg_box.setText(msg)
        msg_box.setStandardButtons(QMessageBox.Ok)
        msg_box.setStyleSheet("QLabel{color: black;}")
        msg_box.exec()

    def showFormSelection(self, all_form_id_name):
        """显示多选表单选择页面 (UI线程处理)"""
        if not all_form_id_name:
            # self.status_label.setText("数据库为空, 没有任何表单")
            self.read_thread.set_selected_forms(list())
            return

        # 提取表单名（用于列表显示）
        form_names = [name for (_, name) in all_form_id_name]

        # 创建多选列表对话框
        dialog = QDialog(self)

        # 设置对话框宽高
        dialog.resize(400, 300)  # 可根据需要调整数值

        dialog.setWindowTitle("选择表单")
        layout = QVBoxLayout(dialog)
        list_widget = QListWidget()
        list_widget.setSelectionMode(QListWidget.ExtendedSelection)  # 支持多选

        # 设置列表样式
        list_widget.setStyleSheet(
            """
        QListWidget {
            font-size: 14px;  /* 字体大小 */
            padding: 5px;     /* 内边距 */
        }
        QListWidget::item {
            height: 30px;     /* 行高 */
        }
        """
        )

        # 表单名添加到列表
        list_widget.addItems(form_names)
        layout.addWidget(list_widget)

        # 确认/取消按钮
        btn_layout = QHBoxLayout()
        confirm_btn = PushButton("确认")
        confirm_btn.setStyleSheet("color: black;")
        cancel_btn = PushButton("取消")
        cancel_btn.setStyleSheet("color: black;")
        btn_layout.addWidget(confirm_btn)
        btn_layout.addWidget(cancel_btn)
        layout.addLayout(btn_layout)

        # 确认按钮逻辑：获取选中的表单ID和名称
        def onDialogConfirm():
            selected_items = list_widget.selectedItems()
            if not selected_items:  # 没有选择，则退出读取
                # self.read_thread.set_selected_forms(list())
                # QMessageBox.warning(dialog, "提示", "请至少选择一个表单")
                dialog.reject()  # 按取消处理，在onDialogClosed中处理
                return

            # 映射选中的名称到 (form_id, form_name)
            selected = [
                all_form_id_name[i]
                for i in range(len(all_form_id_name))
                if list_widget.item(i).isSelected()
            ]
            self.read_thread.set_selected_forms(selected)  # 通知线程用户选择
            dialog.accept()

        # 对话框关闭时的统一处理
        def onDialogClosed(result):
            # 如果不是用户确认（result != QDialog.Accepted），则通知线程取消
            if result != QDialog.Accepted:
                if (
                    hasattr(self, "read_thread")
                    and self.read_thread
                    and not self.read_thread.isFinished()
                ):
                    self.read_thread.set_selected_forms(list())

        # bind
        confirm_btn.clicked.connect(onDialogConfirm)
        cancel_btn.clicked.connect(dialog.reject)
        dialog.finished.connect(onDialogClosed)

        # 显示表单选择框
        dialog.exec()

    # 由读取的数据生成新表单
    def generateNewForms(self, form_data):
        """根据读取到的数据生成新表单(UI线程处理)"""
        # form_data格式：{form_name: [(row_idx, x, y, z, rx, ry, rz), ...], ...}
        for form_name, data_rows in form_data.items():
            # 创建新表单
            self.formTotalCnt += 1  # 创建的总的表单数加一
            new_form = CoordinateTableWidget(
                form_name=f"{form_name}", parent=self, initRowCount=False
            )
            new_form.update_table_signal.connect(self.handleFormUpdate)
            new_form.move_to_coodinate_signal.connect(self.form_move_signal)

            # 填充数据到新表单
            for row_idx, x, y, z, rx, ry, rz in data_rows:
                # 如果数单行数超过表格行数，自动添加行
                while row_idx >= new_form.table.rowCount():
                    new_form.addNewRow()

                # 填充单元格
                new_form.table.setItem(row_idx, 0, QTableWidgetItem(x))
                new_form.table.setItem(row_idx, 1, QTableWidgetItem(y))
                new_form.table.setItem(row_idx, 2, QTableWidgetItem(z))
                new_form.table.setItem(row_idx, 3, QTableWidgetItem(rx))
                new_form.table.setItem(row_idx, 4, QTableWidgetItem(ry))
                new_form.table.setItem(row_idx, 5, QTableWidgetItem(rz))
            # 将新表单添加到UI
            form_key = f"form_{self.formTotalCnt}"  # 唯一标识
            self.tabBar.addTab(
                routeKey=form_key, text=f"{form_name}", icon=FIF.TILES.icon()
            )
            self.formStack.addWidget(new_form)


# 更新表单中选中行数据 x,y,z,rx,ry,rz
# def test(form_obj: CoordinateTableWidget):
#     form_obj.update_table_data([666, 666, 666, 666, 666, 666])


# if __name__ == "__main__":
#     app = QApplication(sys.argv)
#     setTheme(Theme.DARK)
#     window = CoordinateFormsWidget()
#     window.form_update_signal.connect(test)
#     window.show()
#     sys.exit(app.exec())