是否可以以某种方式自定义 QTabWidget？

Question

dynamic.aerospace.inc

Asked:2024-08-30 23:27:32 +0000 UTC2024-08-30 23:27:32 +0000 UTC 2024-08-30 23:27:32 +0000 UTC

在 Qt-Designer 中创建活动文件面板

772

不久前，我在编写程序时开始学习PyQt，并面临一个问题：
如何制作活动文件或项目的列表？

当您打开PyCharm、Sublime Text甚至Notepad时，您可以在顶部看到当前打开工作的文件列表。
是否可以使用PyQt来实现这一点？如果可以，如何实现？

这样的小部件应该打开、关闭和显示其内部的任何程序元素

更新：

我们目前拥有的：

<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
 <author>Dynamic Software, Dynamic Aerospace</author>
 <class>IIC</class>
 <widget class="QMainWindow" name="IIC">
  <property name="geometry">
   <rect>
    <x>0</x>
    <y>0</y>
    <width>640</width>
    <height>480</height>
   </rect>
  </property>
  <property name="windowTitle">
   <string>IIC - (демо версия)</string>
  </property>
  <widget class="QWidget" name="centralwidget"/>
  <widget class="QMenuBar" name="menubar">
   <property name="geometry">
    <rect>
     <x>0</x>
     <y>0</y>
     <width>640</width>
     <height>22</height>
    </rect>
   </property>
   <widget class="QMenu" name="File">
    <property name="title">
     <string>Файл</string>
    </property>
    <addaction name="New"/>
    <addaction name="Open"/>
    <addaction name="RecentFile"/>
    <addaction name="separator"/>
    <addaction name="Close"/>
    <addaction name="CloseAll"/>
    <addaction name="separator"/>
    <addaction name="Save"/>
    <addaction name="SaveAs"/>
    <addaction name="Export"/>
    <addaction name="separator"/>
    <addaction name="Preview"/>
    <addaction name="Print"/>
    <addaction name="separator"/>
    <addaction name="Send"/>
    <addaction name="separator"/>
    <addaction name="InformationDocument"/>
    <addaction name="separator"/>
    <addaction name="Exit"/>
   </widget>
   <widget class="QMenu" name="Edit">
    <property name="title">
     <string>Правка</string>
    </property>
    <addaction name="Undo"/>
    <addaction name="Redo"/>
    <addaction name="separator"/>
    <addaction name="RepeatLastCommand"/>
    <addaction name="separator"/>
    <addaction name="Cut"/>
    <addaction name="Copy"/>
    <addaction name="Paste"/>
    <addaction name="Delete"/>
    <addaction name="separator"/>
    <addaction name="Scale"/>
   </widget>
   <widget class="QMenu" name="Settings">
    <property name="title">
     <string>Настройки</string>
    </property>
    <addaction name="RestoreLicenses"/>
    <addaction name="ReceiveLicensesIIC"/>
    <addaction name="separator"/>
    <addaction name="Parameters"/>
    <addaction name="LoadParameters"/>
    <addaction name="SaveParameters"/>
   </widget>
   <widget class="QMenu" name="Apps">
    <property name="title">
     <string>Приложения</string>
    </property>
    <addaction name="AddApps"/>
    <addaction name="Configurator"/>
   </widget>
   <widget class="QMenu" name="Window">
    <property name="title">
     <string>Окно</string>
    </property>
    <addaction name="CloseCurrentWindow"/>
   </widget>
   <widget class="QMenu" name="Help">
    <property name="title">
     <string>Справка</string>
    </property>
    <addaction name="Content"/>
    <addaction name="separator"/>
    <addaction name="TrainingMaterials"/>
    <addaction name="separator"/>
    <addaction name="IICOnInternet"/>
    <addaction name="separator"/>
    <addaction name="LicenseAgreement"/>
    <addaction name="AboutProgram"/>
   </widget>
   <widget class="QMenu" name="Decoration">
    <property name="title">
     <string>Оформление</string>
    </property>
    <addaction name="StyleLibrary"/>
    <addaction name="separator"/>
    <addaction name="CreateReport"/>
    <addaction name="EditTemplateReport"/>
    <addaction name="CreateTemplateReport"/>
   </widget>
   <widget class="QMenu" name="Analysis">
    <property name="title">
     <string>Анализ</string>
    </property>
    <addaction name="AnalysisInjector"/>
    <addaction name="OptimizationInjector"/>
    <addaction name="separator"/>
    <addaction name="CustomExpressions"/>
   </widget>
   <addaction name="File"/>
   <addaction name="Edit"/>
   <addaction name="Analysis"/>
   <addaction name="Decoration"/>
   <addaction name="Settings"/>
   <addaction name="Apps"/>
   <addaction name="Window"/>
   <addaction name="Help"/>
  </widget>
  <widget class="QStatusBar" name="statusbar"/>
  <action name="New">
   <property name="text">
    <string>Новый</string>
   </property>
  </action>
  <action name="Open">
   <property name="text">
    <string>Открыть</string>
   </property>
  </action>
  <action name="RecentFile">
   <property name="text">
    <string>Последние файлы</string>
   </property>
  </action>
  <action name="Save">
   <property name="text">
    <string>Сохранить</string>
   </property>
  </action>
  <action name="SaveAs">
   <property name="text">
    <string>Сохранить как</string>
   </property>
  </action>
  <action name="action_PDF">
   <property name="text">
    <string>.PDF</string>
   </property>
  </action>
  <action name="action_TXT">
   <property name="text">
    <string>.TXT</string>
   </property>
  </action>
  <action name="Export">
   <property name="text">
    <string>Экспортировать</string>
   </property>
  </action>
  <action name="Print">
   <property name="text">
    <string>Печать</string>
   </property>
  </action>
  <action name="Exit">
   <property name="text">
    <string>Выход</string>
   </property>
  </action>
  <action name="Undo">
   <property name="text">
    <string>Отменить</string>
   </property>
  </action>
  <action name="Redo">
   <property name="text">
    <string>Повторить</string>
   </property>
  </action>
  <action name="Cut">
   <property name="text">
    <string>Вырезать</string>
   </property>
  </action>
  <action name="Copy">
   <property name="text">
    <string>Копировать</string>
   </property>
  </action>
  <action name="Paste">
   <property name="text">
    <string>Вставить</string>
   </property>
  </action>
  <action name="action_6">
   <property name="text">
    <string>Дублировать</string>
   </property>
  </action>
  <action name="Delete">
   <property name="text">
    <string>Удалить</string>
   </property>
  </action>
  <action name="Scale">
   <property name="text">
    <string>Масштабировать</string>
   </property>
  </action>
  <action name="RestoreLicenses">
   <property name="text">
    <string>Восстановить лицензии</string>
   </property>
  </action>
  <action name="ReceiveLicensesIIC">
   <property name="text">
    <string>Получить лицензию на IIC</string>
   </property>
  </action>
  <action name="Parameters">
   <property name="text">
    <string>Параметры</string>
   </property>
  </action>
  <action name="LoadParameters">
   <property name="text">
    <string>Загрузить параметры</string>
   </property>
  </action>
  <action name="SaveParameters">
   <property name="text">
    <string>Сохранить параметры</string>
   </property>
  </action>
  <action name="AddApps">
   <property name="text">
    <string>Добавить приложение</string>
   </property>
  </action>
  <action name="Configurator">
   <property name="text">
    <string>Конфигуратор</string>
   </property>
  </action>
  <action name="CloseCurrentWindow">
   <property name="text">
    <string>Закрыть текущую вкладку</string>
   </property>
  </action>
  <action name="Content">
   <property name="text">
    <string>Содержание</string>
   </property>
  </action>
  <action name="TrainingMaterials">
   <property name="text">
    <string>Обучающие материалы</string>
   </property>
  </action>
  <action name="IICOnInternet">
   <property name="text">
    <string>IIC в интернете</string>
   </property>
  </action>
  <action name="LicenseAgreement">
   <property name="text">
    <string>Лицензионное соглашение</string>
   </property>
  </action>
  <action name="AboutProgram">
   <property name="text">
    <string>О программе</string>
   </property>
  </action>
  <action name="InformationDocument">
   <property name="text">
    <string>Информация о документе</string>
   </property>
  </action>
  <action name="Send">
   <property name="text">
    <string>Отправить</string>
   </property>
  </action>
  <action name="Close">
   <property name="text">
    <string>Закрыть</string>
   </property>
  </action>
  <action name="CloseAll">
   <property name="text">
    <string>Закрыть все документы</string>
   </property>
  </action>
  <action name="Preview">
   <property name="text">
    <string>Предварительный просмотр</string>
   </property>
  </action>
  <action name="RepeatLastCommand">
   <property name="text">
    <string>Повторить последнюю команду</string>
   </property>
  </action>
  <action name="StyleLibrary">
   <property name="text">
    <string>Библиотека стилей</string>
   </property>
  </action>
  <action name="CreateReport">
   <property name="text">
    <string>Создать отчет</string>
   </property>
  </action>
  <action name="EditTemplateReport">
   <property name="text">
    <string>Редактировать шаблон отчета</string>
   </property>
  </action>
  <action name="CreateTemplateReport">
   <property name="text">
    <string>Создать шаблон отчета</string>
   </property>
  </action>
  <action name="AnalysisInjector">
   <property name="text">
    <string>Анализ форсунки</string>
   </property>
  </action>
  <action name="OptimizationInjector">
   <property name="text">
    <string>Оптимизация форсунки</string>
   </property>
  </action>
  <action name="CustomExpressions">
   <property name="text">
    <string>Пользовательские выражения</string>
   </property>
  </action>
 </widget>
 <resources/>
 <connections/>
</ui>

为了清晰起见，截图：

1 个回答

Voted

S. Nick · Answer 1 · 2024-09-04T21:25:10Z

我不太确定我是否正确理解了你的意思，但尝试检查一个可能的选项：

将您的.ui表单转换为.py：

pyuic5 q1592407.ui -o q1592407_ui.py -x
执行main.py：

。

import sys
from PyQt5.Qt import *
from q1592407_ui import Ui_IIC


lineBarColor       = QColor(53, 53, 53)       
lineHighlightColor = QColor('#00FF04')   


class NumberBar(QWidget):
    def __init__(self, parent=None):
        super().__init__(parent)
        self.editor = parent
        layout = QVBoxLayout(self)
        self.editor.blockCountChanged.connect(self.update_width)
        self.editor.updateRequest.connect(self.update_on_scroll)
        self.update_width('001')   

    def mousePressEvent(self, QMouseEvent):
        print("\n - class NumberBar(): \n\tdef mousePressEvent():")

    def update_on_scroll(self, rect, scroll):
        if self.isVisible():
            if scroll:
                self.scroll(0, scroll)
            else:
                self.update()

    def update_width(self, string):
        width = self.fontMetrics().width(str(string)) + 10
        if self.width() != width:
            self.setFixedWidth(width)

    def paintEvent(self, event):
        if self.isVisible():
            block   = self.editor.firstVisibleBlock()
            height  = self.fontMetrics().height()
            number  = block.blockNumber()
            painter = QPainter(self)
            painter.fillRect(event.rect(), lineBarColor)
            painter.setPen(Qt.white)                       
            painter.drawRect(
                0, 0, 
                event.rect().width() - 1, 
                event.rect().height() - 1)
            font = painter.font()

            current_block = self.editor.textCursor().block().blockNumber() + 1

            while block.isValid():
                block_geometry = self.editor.blockBoundingGeometry(block)
                offset = self.editor.contentOffset()
                block_top = block_geometry.translated(offset).top()
                number += 1

                rect = QRect(0, block_top, self.width() - 5, height)

                if number == current_block:
                    font.setBold(True)
                else:
                    font.setBold(False)

                painter.setFont(font)
                painter.drawText(rect, Qt.AlignRight, '%i' % number)

                if block_top > event.rect().bottom():
                    break

                block = block.next()
            painter.end()
            

class Content(QWidget):
    def __init__(self, text):
        super(Content, self).__init__()
        self.editor = QPlainTextEdit()
        self.editor.setPlainText(text)
        self.hbox    = QHBoxLayout(self)
        self.numbers = NumberBar(self.editor)
        self.hbox.addWidget(self.numbers)
        self.hbox.addWidget(self.editor)
        

class TabWidget(QTabWidget):
    def __init__(self, parent=None):
        super(TabWidget, self).__init__(parent)
  
    def tabRemoved(self, index):
        print(f"\n вкладка удалена из индекса позиции -> {index}")

    def tabInserted(self, index):
        print(f"\n Новая вкладка была добавлена или вставлена "
            f"в индекс позиции -> {index}")
    

class MyTableWidget(QWidget):
    def __init__(self, parent=None):
        super(QWidget, self).__init__(parent)
        
        self.layout = QVBoxLayout(self)
        # Initialize tab screen
        self.tabs = TabWidget()                  
        self.tabs.resize(300, 200)

        # Add tabs
        self.tabs.setTabsClosable(True)
        self.tabs.tabCloseRequested.connect(self.closeTab)

        # Add tabs to widget
        self.layout.addWidget(self.tabs)
        self.setLayout(self.layout)

    def closeTab(self, index):
        tab = self.tabs.widget(index)
        tab.deleteLater()
        self.tabs.removeTab(index)

    def addtab(self, content, fileName):
        self.tabs.addTab(Content(str(content)), str(fileName))


class MainWindow(QMainWindow, Ui_IIC):
    def __init__(self):
        super().__init__()
        
        self.setupUi(self)

        self.tabs = MyTableWidget()
        
        self.layout = QVBoxLayout(self.centralwidget)
        self.layout.addWidget(self.tabs)

        self.Open.triggered.connect(self.openFile)
        self.New.triggered.connect(self.new)

    def new(self):
        self.tabs.addtab('', 'new_file_name.txt')                     

    def openFile(self):                                   
        options = QFileDialog.Options()
        filenames, _ = QFileDialog.getOpenFileNames(
            self, 'Open a file', '',
            'Python Files (*.py);;Text Files (*.txt)',
            options=options
        )
        if filenames:
            for filename in filenames:
                with open(filename, 'r+') as file_o:
                    try: 
                        text = file_o.read()
                        self.tabs.addtab(text, filename)      
                    except Exception as e:
                        print("Error: filename=`{}`, `{}` ".format( filename, str(e)))
        

if __name__ == '__main__':
    app = QApplication(sys.argv)
    w = MainWindow()
    w.show()
    sys.exit(app.exec())

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