基于PYQT5的截图翻译工具

基于PYQT5的截图翻译工具

功能介绍

1. 翻译功能
2. 截图功能（快捷键 + 截图存储到剪切板中）
3. 文字识别OCR（基于百度API的文字识别）

UI 界面

截图

截图可以使用第三方截图 或 使用PyQt5截图

此文章使用PyQt5的截图

class Snipper(QtWidgets.QWidget):    def __init__(self, parent=None, flags=Qt.WindowFlags()):        super().__init__(parent=parent, flags=flags)        self.setWindowTitle("TextShot")        self.setWindowFlags(  # 设置窗口属性，窗口置顶            Qt.FramelessWindowHint | Qt.WindowStaysOnTopHint | Qt.Dialog        )        self.setWindowState(self.windowState() | Qt.WindowFullScreen)        self.screen = QtGui.QScreen.grabWindow(            QtWidgets.QApplication.primaryScreen(),    # 获取当前屏幕分辨率（屏幕大小）            QtWidgets.QApplication.desktop().winId(),        )        palette = QtGui.QPalette()  # 调色板QPalette类        palette.setBrush(self.backgroundRole(), QtGui.QBrush(self.screen))        self.setPalette(palette)        # 改变鼠标形状        QtWidgets.QApplication.setOverrideCursor(QtGui.QCursor(QtCore.Qt.CrossCursor))        self.start, self.end = QtCore.QPoint(), QtCore.QPoint()    def keyPressEvent(self, event):        if event.key() == Qt.Key_Escape:            QtWidgets.QApplication.quit()        return super().keyPressEvent(event)    def paintEvent(self, event):        painter = QtGui.QPainter(self)        painter.setPen(Qt.NoPen)        painter.setBrush(QtGui.QColor(0, 0, 0, 100))        painter.drawRect(0, 0, self.width(), self.height())        if self.start == self.end:            return super().paintEvent(event)        painter.setPen(QtGui.QPen(QtGui.QColor(255, 255, 255), 3))        painter.setBrush(painter.background())        painter.drawRect(QtCore.QRect(self.start, self.end))        return super().paintEvent(event)    def mousePressEvent(self, event):        self.start = self.end = QtGui.QCursor.pos()        self.update()        return super().mousePressEvent(event)    def mouseMoveEvent(self, event):        self.end = QtGui.QCursor.pos()        self.update()        return super().mousePressEvent(event)    def mouseReleaseEvent(self, event):        if self.start == self.end:            return super().mouseReleaseEvent(event)        self.hide()        QtWidgets.QApplication.processEvents()        if self.start.x() < self.end.x():            shot = self.screen.copy(QtCore.QRect(self.start, self.end))        else:            shot = self.screen.copy(QtCore.QRect(self.end, self.start))        QtWidgets.QApplication.quit()

翻译

翻译功能可以请求百度翻译或者有道翻译，网上有很多这里就不多赘述。

文字识别

文字识别本文字使用的百度云的文字识别OCR 百度云文字识别

全局热键（快捷键）

开启多线程捕获全局全局热键，防止主线程阻塞导致假死。

安装

pip install system_hotkey

示例

from system_hotkey import SystemHotkeyfrom PyQt5.QtCore import QObject, pyqtSignal, Qtclass HotKeyThread(QObject):    trigger = pyqtSignal(str)    def __init__(self):        super().__init__()        # 1. 自定义热键响应        self.trigger.connect(self.hotKeyEvent)        # 2.初始化热键        self.hot_key = SystemHotkey()        # 3.绑定快捷键发送信号        self.hot_key.register(('control','1'),, callback=lambda x: self.sendKeyEvent("按下"))    def sendKeyEvent(self,data):        self.trigger.emit(data)    def hotKeyEvent(self,data):        print("接收信号：{}".format(data))

托盘管理

托盘管理使用pyqt5的 QSystemTrayIcon 实现

class Tray(QSystemTrayIcon):    def __init__(self, UI):        super(Tray, self).__init__()        self.ui = UI        self.setIcon(QIcon('icons/1.ico'))        # 托盘图标        self.setToolTip('小工具') # 鼠标移动到托盘图标上的提示        self.activated.connect(self.clickedIcon)  # 点击信号        self.menu()        self.show()    def clickedIcon(self,reason):        # reason：鼠标点击托盘图标时传递的整数型信号        # 1表示单击右键        # 2表示双击左键        # 3表示单击左键        # 4表示点击中键        # 下面定义单击左键是弹出或隐藏界面，单击右键是弹出菜单。        if reason == 3:            self.trayClickedEvent()        elif reason == 1:            self.contextMenu()    def menu(self):        menu = QMenu()        action = QAction('退出', self, triggered=self.triggered)        menu.addAction(action)        self.setContextMenu(menu)    def trayClickedEvent(self):        if self.ui.isHidden():            self.ui.setHidden(False)            if self.ui.windowState() == Qt.WindowMinimized:                self.ui.showNormal()  # 正常显示窗口            self.ui.raise_()  # 控制在上层            self.ui.activateWindow()  # 活动窗口        else:            self.ui.setHidden(True)  # 设置隐藏窗口    def triggered(self):        self.deleteLater()  # 删除托盘图标，无此操作的话，程序退出后托盘图标不会自动清除        qApp.quit()         # 会重写closeEvent，换一个退出程序的命令

主代码

import sysimport timefrom tray import Trayfrom ui import Ui_MainWindowfrom demo import translate,Child_Dialogfrom PyQt5.QtGui import QIconfrom PyQt5.QtCore import QThread,pyqtSignal,Qtfrom PyQt5.QtWidgets import QApplication,QSystemTrayIcon,QMenu,QAction,qAppclass HotKeyThread(QThread,SystemHotkey):    # 开启多线程全局热键    trigger = pyqtSignal()    def __init__(self,UI):        self.ui = UI        super(HotKeyThread,self).__init__()        self.register(('control', '1'), callback=lambda x: self.start())        self.trigger.connect(self.hotKeyEvent)    def run(self):        self.trigger.emit()    def hotKeyEvent(self):        self.ui.screenshots_and_translate()class MainFunction(Ui_MainWindow):      # 主程序      def __init__(self):        super().__init__()        self.trigger()      def trigger(self):        self.status = False        self.tray = Tray(self)        self.hotKey = HotKeyThread(self)        self.pushButton_2.setToolTip("截图(Ctrl+1)")  # 给按钮2 添加提示气泡，显示快捷键方法        self.pushButton_1.clicked.connect(self.screenshots_and_translate)  # 按钮1 翻译        self.pushButton_2.clicked.connect(self.screenshots_and_translate)  # 按钮2 截图          def screenshots_and_translate(self):        butname = self.sender().objectName()        if butname == "pushButton1":            text = self.textedit.toPlainText()            res = None            if len(text) > 0:                res = translate(text)            self.textBrowser.setText(res)        else:            if not self.status:                self.status = True                self.showMinimized()                time.sleep(0.5)                self.activateWindow()                self.child_window = Child_Dialog(self)  # 截图                self.child_window.dialogSignel.connect(self.slot_emit)                self.child_window.show()      def slot_emit(self, flag, str):        self.activateWindow()        self.showNormal()        self.status = False        if flag == 1:            if self.checkBox.isChecked():                res = translate(str)            else:                res = str            self.textBrowser.setText(res)      def closeEvent(self,QCloseEvent):        QCloseEvent.ignore()        self.hide()if __name__ == '__main__':    app = QApplication(sys.argv)    ex = MainFunction()    sys.exit(app.exec_())