c++ - 将 Qt Designer 项目转换为 C++ 代码

Question

我将我的.ui文件通过uic转换为头文件，据我所知，该文件包含头文件和.ui文件的实现。但它的哪一部分是标头以及实现是什么？有没有办法正确分开它们？

#ifndef PATCHBOT_GUI_H
#define PATCHBOT_GUI_H

#include <QtCore/QVariant>
#include <QtGui/QIcon>
#include <QtWidgets/QApplication>
#include <QtWidgets/QComboBox>
#include <QtWidgets/QFrame>
#include <QtWidgets/QGridLayout>
#include <QtWidgets/QLabel>
#include <QtWidgets/QMainWindow>
#include <QtWidgets/QMenuBar>
#include <QtWidgets/QPushButton>
#include <QtWidgets/QScrollBar>
#include <QtWidgets/QStatusBar>
#include <QtWidgets/QTextEdit>
#include <QtWidgets/QVBoxLayout>
#include <QtWidgets/QWidget>

QT_BEGIN_NAMESPACE

class Ui_MainWindow
{
public:
    QWidget *centralwidget;
    QGridLayout *gridLayout;
    QFrame *selectColonyFrame;
    QPushButton *selectColonyButton;
    QFrame *currentColonyFrame;
    QLabel *currentColonyLabel;
    QFrame *missionControlsFrame;
    QVBoxLayout *verticalLayout;
    QLabel *misisonControlsLabel;
    QGridLayout *missionControlsGridLayout;
    QPushButton *startButton;
    QPushButton *abortButton;
    QPushButton *singleStepButton;
    QPushButton *autoButton;
    QPushButton *pauseButton;
    QFrame *botControlsFrame;
    QGridLayout *gridLayout_2;
    QGridLayout *botControlsGridLayout;
    QPushButton *downButton;
    QPushButton *upButton;
    QPushButton *waitButton;
    QPushButton *leftButton;
    QPushButton *deleteButton;
    QPushButton *rightButton;
    QLabel *botControlsLabel;
    QComboBox *repeatDropdown;
    QFrame *frame_6;
    QFrame *botCommandFrame;
    QTextEdit *botCommandTextEdit;
    QFrame *mapFrame;
    QGridLayout *gridLayout_6;
    QLabel *label;
    QScrollBar *verticalScrollBar;
    QScrollBar *horizontalScrollBar;
    QMenuBar *menubar;
    QStatusBar *statusbar;

    void setupUi(QMainWindow *MainWindow)
    {
        if (MainWindow->objectName().isEmpty())
            MainWindow->setObjectName(QString::fromUtf8("MainWindow"));
        MainWindow->resize(819, 634);
        MainWindow->setMinimumSize(QSize(580, 400));
        centralwidget = new QWidget(MainWindow);
        centralwidget->setObjectName(QString::fromUtf8("centralwidget"));
        gridLayout = new QGridLayout(centralwidget);
        gridLayout->setObjectName(QString::fromUtf8("gridLayout"));
        gridLayout->setVerticalSpacing(6);
        gridLayout->setContentsMargins(-1, 0, -1, 0);
        selectColonyFrame = new QFrame(centralwidget);
        selectColonyFrame->setObjectName(QString::fromUtf8("selectColonyFrame"));
        selectColonyFrame->setMinimumSize(QSize(150, 40));
        selectColonyFrame->setLayoutDirection(Qt::RightToLeft);
        selectColonyFrame->setFrameShape(QFrame::StyledPanel);
        selectColonyFrame->setFrameShadow(QFrame::Raised);
        selectColonyButton = new QPushButton(selectColonyFrame);
        selectColonyButton->setObjectName(QString::fromUtf8("selectColonyButton"));
        selectColonyButton->setGeometry(QRect(80, 0, 150, 40));
        selectColonyButton->setMinimumSize(QSize(150, 40));
        selectColonyButton->setMaximumSize(QSize(150, 50));
        QFont font;
        font.setPointSize(11);
        font.setBold(true);
        font.setWeight(75);
        selectColonyButton->setFont(font);

        gridLayout->addWidget(selectColonyFrame, 0, 1, 1, 1);

        currentColonyFrame = new QFrame(centralwidget);
        currentColonyFrame->setObjectName(QString::fromUtf8("currentColonyFrame"));
        QSizePolicy sizePolicy(QSizePolicy::Minimum, QSizePolicy::Minimum);
        sizePolicy.setHorizontalStretch(0);
        sizePolicy.setVerticalStretch(0);
        sizePolicy.setHeightForWidth(currentColonyFrame->sizePolicy().hasHeightForWidth());
        currentColonyFrame->setSizePolicy(sizePolicy);
        currentColonyFrame->setMinimumSize(QSize(0, 25));
        currentColonyFrame->setFrameShape(QFrame::StyledPanel);
        currentColonyFrame->setFrameShadow(QFrame::Raised);
        currentColonyLabel = new QLabel(currentColonyFrame);
        currentColonyLabel->setObjectName(QString::fromUtf8("currentColonyLabel"));
        currentColonyLabel->setGeometry(QRect(10, 10, 301, 16));
        currentColonyLabel->setMinimumSize(QSize(220, 15));
        currentColonyLabel->setMaximumSize(QSize(460, 25));
        QFont font1;
        font1.setPointSize(10);
        currentColonyLabel->setFont(font1);

        gridLayout->addWidget(currentColonyFrame, 0, 0, 1, 1);

        missionControlsFrame = new QFrame(centralwidget);
        missionControlsFrame->setObjectName(QString::fromUtf8("missionControlsFrame"));
        QSizePolicy sizePolicy1(QSizePolicy::Preferred, QSizePolicy::Preferred);
        sizePolicy1.setHorizontalStretch(8);
        sizePolicy1.setVerticalStretch(8);
        sizePolicy1.setHeightForWidth(missionControlsFrame->sizePolicy().hasHeightForWidth());
        missionControlsFrame->setSizePolicy(sizePolicy1);
        missionControlsFrame->setMaximumSize(QSize(300, 180));
        missionControlsFrame->setFrameShape(QFrame::WinPanel);
        missionControlsFrame->setFrameShadow(QFrame::Raised);
        verticalLayout = new QVBoxLayout(missionControlsFrame);
        verticalLayout->setObjectName(QString::fromUtf8("verticalLayout"));
        misisonControlsLabel = new QLabel(missionControlsFrame);
        misisonControlsLabel->setObjectName(QString::fromUtf8("misisonControlsLabel"));
        QFont font2;
        font2.setPointSize(11);
        misisonControlsLabel->setFont(font2);
        misisonControlsLabel->setAlignment(Qt::AlignCenter);

        verticalLayout->addWidget(misisonControlsLabel);

        missionControlsGridLayout = new QGridLayout();
        missionControlsGridLayout->setObjectName(QString::fromUtf8("missionControlsGridLayout"));
        missionControlsGridLayout->setHorizontalSpacing(20);
        missionControlsGridLayout->setVerticalSpacing(10);
        missionControlsGridLayout->setContentsMargins(15, 20, 15, 0);
        startButton = new QPushButton(missionControlsFrame);
        startButton->setObjectName(QString::fromUtf8("startButton"));
        startButton->setMinimumSize(QSize(80, 30));
        startButton->setMaximumSize(QSize(130, 50));
        QFont font3;
        font3.setPointSize(12);
        startButton->setFont(font3);

        missionControlsGridLayout->addWidget(startButton, 0, 0, 1, 1);

        abortButton = new QPushButton(missionControlsFrame);
        abortButton->setObjectName(QString::fromUtf8("abortButton"));
        abortButton->setMinimumSize(QSize(80, 30));
        abortButton->setMaximumSize(QSize(130, 50));
        abortButton->setFont(font3);
        abortButton->setLayoutDirection(Qt::LeftToRight);
        abortButton->setAutoDefault(false);
        abortButton->setFlat(false);

        missionControlsGridLayout->addWidget(abortButton, 0, 1, 1, 1);

        singleStepButton = new QPushButton(missionControlsFrame);
        singleStepButton->setObjectName(QString::fromUtf8("singleStepButton"));
        singleStepButton->setMinimumSize(QSize(80, 30));
        singleStepButton->setMaximumSize(QSize(130, 50));
        singleStepButton->setFont(font3);

        missionControlsGridLayout->addWidget(singleStepButton, 1, 0, 1, 1);

        autoButton = new QPushButton(missionControlsFrame);
        autoButton->setObjectName(QString::fromUtf8("autoButton"));
        autoButton->setMinimumSize(QSize(80, 30));
        autoButton->setMaximumSize(QSize(130, 50));
        autoButton->setFont(font3);
        autoButton->setLayoutDirection(Qt::LeftToRight);
        autoButton->setAutoDefault(false);
        autoButton->setFlat(false);

        missionControlsGridLayout->addWidget(autoButton, 1, 1, 1, 1);

        pauseButton = new QPushButton(missionControlsFrame);
        pauseButton->setObjectName(QString::fromUtf8("pauseButton"));
        pauseButton->setMinimumSize(QSize(80, 30));
        pauseButton->setMaximumSize(QSize(130, 50));
        pauseButton->setFont(font3);
        pauseButton->setLayoutDirection(Qt::LeftToRight);
        pauseButton->setAutoDefault(false);
        pauseButton->setFlat(false);

        missionControlsGridLayout->addWidget(pauseButton, 2, 1, 1, 1);


        verticalLayout->addLayout(missionControlsGridLayout);


        gridLayout->addWidget(missionControlsFrame, 3, 1, 1, 1);

        botControlsFrame = new QFrame(centralwidget);
        botControlsFrame->setObjectName(QString::fromUtf8("botControlsFrame"));
        QSizePolicy sizePolicy2(QSizePolicy::Preferred, QSizePolicy::Preferred);
        sizePolicy2.setHorizontalStretch(4);
        sizePolicy2.setVerticalStretch(4);
        sizePolicy2.setHeightForWidth(botControlsFrame->sizePolicy().hasHeightForWidth());
        botControlsFrame->setSizePolicy(sizePolicy2);
        botControlsFrame->setMinimumSize(QSize(160, 120));
        botControlsFrame->setMaximumSize(QSize(320, 240));
        botControlsFrame->setFrameShape(QFrame::WinPanel);
        botControlsFrame->setFrameShadow(QFrame::Raised);
        gridLayout_2 = new QGridLayout(botControlsFrame);
        gridLayout_2->setObjectName(QString::fromUtf8("gridLayout_2"));
        botControlsGridLayout = new QGridLayout();
        botControlsGridLayout->setObjectName(QString::fromUtf8("botControlsGridLayout"));
        botControlsGridLayout->setSizeConstraint(QLayout::SetMinimumSize);
        downButton = new QPushButton(botControlsFrame);
        downButton->setObjectName(QString::fromUtf8("downButton"));
        downButton->setMinimumSize(QSize(30, 30));
        downButton->setMaximumSize(QSize(50, 50));
        downButton->setLayoutDirection(Qt::LeftToRight);
        QIcon icon;
        icon.addFile(QString::fromUtf8(":/grafics/grafics/pfeile/pfeil_unten.tga"), QSize(), QIcon::Normal, QIcon::Off);
        downButton->setIcon(icon);
        downButton->setIconSize(QSize(50, 50));

        botControlsGridLayout->addWidget(downButton, 2, 1, 1, 1);

        upButton = new QPushButton(botControlsFrame);
        upButton->setObjectName(QString::fromUtf8("upButton"));
        upButton->setMinimumSize(QSize(30, 30));
        upButton->setMaximumSize(QSize(50, 50));
        upButton->setSizeIncrement(QSize(0, 0));
        QIcon icon1;
        icon1.addFile(QString::fromUtf8(":/grafics/grafics/pfeile/pfeil_oben.tga"), QSize(), QIcon::Normal, QIcon::Off);
        upButton->setIcon(icon1);
        upButton->setIconSize(QSize(50, 50));

        botControlsGridLayout->addWidget(upButton, 0, 1, 1, 1);

        waitButton = new QPushButton(botControlsFrame);
        waitButton->setObjectName(QString::fromUtf8("waitButton"));
        waitButton->setMinimumSize(QSize(30, 30));
        waitButton->setMaximumSize(QSize(50, 50));
        QFont font4;
        font4.setFamily(QString::fromUtf8("MS Shell Dlg 2"));
        font4.setPointSize(15);
        waitButton->setFont(font4);
        waitButton->setContextMenuPolicy(Qt::DefaultContextMenu);
        QIcon icon2;
        QString iconThemeName = QString::fromUtf8("&#9664");
        if (QIcon::hasThemeIcon(iconThemeName)) {
            icon2 = QIcon::fromTheme(iconThemeName);
        } else {
            icon2.addFile(QString::fromUtf8("."), QSize(), QIcon::Normal, QIcon::Off);
        }
        waitButton->setIcon(icon2);

        botControlsGridLayout->addWidget(waitButton, 1, 1, 1, 1);

        leftButton = new QPushButton(botControlsFrame);
        leftButton->setObjectName(QString::fromUtf8("leftButton"));
        leftButton->setMinimumSize(QSize(30, 30));
        leftButton->setMaximumSize(QSize(50, 50));
        QIcon icon3;
        icon3.addFile(QString::fromUtf8(":/grafics/grafics/pfeile/pfeil_links.tga"), QSize(), QIcon::Normal, QIcon::Off);
        leftButton->setIcon(icon3);
        leftButton->setIconSize(QSize(50, 50));

        botControlsGridLayout->addWidget(leftButton, 1, 0, 1, 1);

        deleteButton = new QPushButton(botControlsFrame);
        deleteButton->setObjectName(QString::fromUtf8("deleteButton"));
        deleteButton->setMinimumSize(QSize(30, 30));
        deleteButton->setMaximumSize(QSize(50, 50));
        QFont font5;
        font5.setPointSize(15);
        deleteButton->setFont(font5);

        botControlsGridLayout->addWidget(deleteButton, 0, 2, 1, 1);

        rightButton = new QPushButton(botControlsFrame);
        rightButton->setObjectName(QString::fromUtf8("rightButton"));
        rightButton->setMinimumSize(QSize(30, 30));
        rightButton->setMaximumSize(QSize(50, 50));
        rightButton->setSizeIncrement(QSize(0, 0));
        QIcon icon4;
        icon4.addFile(QString::fromUtf8(":/grafics/grafics/pfeile/pfeil_rechts.tga"), QSize(), QIcon::Normal, QIcon::Off);
        rightButton->setIcon(icon4);
        rightButton->setIconSize(QSize(50, 50));

        botControlsGridLayout->addWidget(rightButton, 1, 2, 1, 1);


        gridLayout_2->addLayout(botControlsGridLayout, 1, 0, 3, 1);

        botControlsLabel = new QLabel(botControlsFrame);
        botControlsLabel->setObjectName(QString::fromUtf8("botControlsLabel"));
        botControlsLabel->setFont(font2);
        botControlsLabel->setAlignment(Qt::AlignCenter);

        gridLayout_2->addWidget(botControlsLabel, 0, 0, 1, 2);

        repeatDropdown = new QComboBox(botControlsFrame);
        repeatDropdown->addItem(QString());
        repeatDropdown->addItem(QString());
        repeatDropdown->addItem(QString());
        repeatDropdown->addItem(QString());
        repeatDropdown->addItem(QString());
        repeatDropdown->setObjectName(QString::fromUtf8("repeatDropdown"));
        repeatDropdown->setMinimumSize(QSize(80, 30));
        repeatDropdown->setMaximumSize(QSize(130, 50));
        QFont font6;
        font6.setPointSize(15);
        font6.setBold(true);
        font6.setItalic(false);
        font6.setWeight(75);
        repeatDropdown->setFont(font6);
        repeatDropdown->setFocusPolicy(Qt::WheelFocus);
        repeatDropdown->setLayoutDirection(Qt::LeftToRight);
        repeatDropdown->setInsertPolicy(QComboBox::NoInsert);
        repeatDropdown->setFrame(true);

        gridLayout_2->addWidget(repeatDropdown, 1, 1, 1, 1);

        frame_6 = new QFrame(botControlsFrame);
        frame_6->setObjectName(QString::fromUtf8("frame_6"));
        frame_6->setFrameShape(QFrame::StyledPanel);
        frame_6->setFrameShadow(QFrame::Raised);

        gridLayout_2->addWidget(frame_6, 2, 1, 1, 1);

        botCommandFrame = new QFrame(botControlsFrame);
        botCommandFrame->setObjectName(QString::fromUtf8("botCommandFrame"));
        botCommandFrame->setMinimumSize(QSize(100, 80));
        botCommandFrame->setMaximumSize(QSize(130, 16777215));
        botCommandFrame->setFrameShape(QFrame::StyledPanel);
        botCommandFrame->setFrameShadow(QFrame::Raised);
        botCommandTextEdit = new QTextEdit(botCommandFrame);
        botCommandTextEdit->setObjectName(QString::fromUtf8("botCommandTextEdit"));
        botCommandTextEdit->setGeometry(QRect(0, 16, 108, 50));
        QSizePolicy sizePolicy3(QSizePolicy::Expanding, QSizePolicy::Expanding);
        sizePolicy3.setHorizontalStretch(130);
        sizePolicy3.setVerticalStretch(50);
        sizePolicy3.setHeightForWidth(botCommandTextEdit->sizePolicy().hasHeightForWidth());
        botCommandTextEdit->setSizePolicy(sizePolicy3);
        botCommandTextEdit->setMinimumSize(QSize(80, 30));
        botCommandTextEdit->setMaximumSize(QSize(130, 50));
        botCommandTextEdit->setFont(font5);
        botCommandTextEdit->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
        botCommandTextEdit->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOn);
        botCommandTextEdit->setLineWrapMode(QTextEdit::NoWrap);
        botCommandTextEdit->setReadOnly(true);

        gridLayout_2->addWidget(botCommandFrame, 3, 1, 1, 1);

        gridLayout_2->setRowStretch(1, 2);
        gridLayout_2->setRowStretch(2, 1);
        gridLayout_2->setRowStretch(3, 1);

        gridLayout->addWidget(botControlsFrame, 1, 1, 2, 1);

        mapFrame = new QFrame(centralwidget);
        mapFrame->setObjectName(QString::fromUtf8("mapFrame"));
        QSizePolicy sizePolicy4(QSizePolicy::MinimumExpanding, QSizePolicy::MinimumExpanding);
        sizePolicy4.setHorizontalStretch(0);
        sizePolicy4.setVerticalStretch(0);
        sizePolicy4.setHeightForWidth(mapFrame->sizePolicy().hasHeightForWidth());
        mapFrame->setSizePolicy(sizePolicy4);
        mapFrame->setMinimumSize(QSize(120, 120));
        mapFrame->setFrameShape(QFrame::StyledPanel);
        mapFrame->setFrameShadow(QFrame::Raised);
        gridLayout_6 = new QGridLayout(mapFrame);
        gridLayout_6->setSpacing(0);
        gridLayout_6->setObjectName(QString::fromUtf8("gridLayout_6"));
        label = new QLabel(mapFrame);
        label->setObjectName(QString::fromUtf8("label"));
        sizePolicy4.setHeightForWidth(label->sizePolicy().hasHeightForWidth());
        label->setSizePolicy(sizePolicy4);
        label->setMinimumSize(QSize(0, 0));
        label->setFrameShape(QFrame::Box);
        label->setAlignment(Qt::AlignCenter);

        gridLayout_6->addWidget(label, 0, 0, 1, 1);

        verticalScrollBar = new QScrollBar(mapFrame);
        verticalScrollBar->setObjectName(QString::fromUtf8("verticalScrollBar"));
        verticalScrollBar->setOrientation(Qt::Vertical);

        gridLayout_6->addWidget(verticalScrollBar, 0, 1, 1, 1);

        horizontalScrollBar = new QScrollBar(mapFrame);
        horizontalScrollBar->setObjectName(QString::fromUtf8("horizontalScrollBar"));
        QSizePolicy sizePolicy5(QSizePolicy::MinimumExpanding, QSizePolicy::Fixed);
        sizePolicy5.setHorizontalStretch(0);
        sizePolicy5.setVerticalStretch(0);
        sizePolicy5.setHeightForWidth(horizontalScrollBar->sizePolicy().hasHeightForWidth());
        horizontalScrollBar->setSizePolicy(sizePolicy5);
        horizontalScrollBar->setOrientation(Qt::Horizontal);

        gridLayout_6->addWidget(horizontalScrollBar, 1, 0, 1, 1);


        gridLayout->addWidget(mapFrame, 1, 0, 3, 1);

        gridLayout->setRowStretch(0, 1);
        gridLayout->setRowStretch(1, 4);
        gridLayout->setRowStretch(2, 4);
        gridLayout->setColumnStretch(0, 2);
        gridLayout->setColumnMinimumWidth(0, 1);
        gridLayout->setColumnMinimumWidth(1, 1);
        gridLayout->setRowMinimumHeight(0, 1);
        gridLayout->setRowMinimumHeight(1, 1);
        gridLayout->setRowMinimumHeight(2, 10);
        gridLayout->setRowMinimumHeight(3, 1);
        MainWindow->setCentralWidget(centralwidget);
        menubar = new QMenuBar(MainWindow);
        menubar->setObjectName(QString::fromUtf8("menubar"));
        menubar->setGeometry(QRect(0, 0, 819, 20));
        MainWindow->setMenuBar(menubar);
        statusbar = new QStatusBar(MainWindow);
        statusbar->setObjectName(QString::fromUtf8("statusbar"));
        MainWindow->setStatusBar(statusbar);

        retranslateUi(MainWindow);

        abortButton->setDefault(false);
        autoButton->setDefault(false);
        pauseButton->setDefault(false);


        QMetaObject::connectSlotsByName(MainWindow);
    } // setupUi

    void retranslateUi(QMainWindow *MainWindow)
    {
        MainWindow->setWindowTitle(QCoreApplication::translate("MainWindow", "MainWindow", nullptr));
        selectColonyButton->setText(QCoreApplication::translate("MainWindow", "Andere Kolonie ...", nullptr));
        currentColonyLabel->setText(QCoreApplication::translate("MainWindow", "Aktuelle Kolonie: Lithium-Stollen 13-A", nullptr));
        misisonControlsLabel->setText(QCoreApplication::translate("MainWindow", "Missionsablauf", nullptr));
        startButton->setText(QCoreApplication::translate("MainWindow", "Start", nullptr));
        abortButton->setText(QCoreApplication::translate("MainWindow", "Abbruch", nullptr));
        singleStepButton->setText(QCoreApplication::translate("MainWindow", "Einzelschritt", nullptr));
        autoButton->setText(QCoreApplication::translate("MainWindow", "Automatik", nullptr));
        pauseButton->setText(QCoreApplication::translate("MainWindow", "Anhalten", nullptr));
        downButton->setText(QString());
        upButton->setText(QString());
        waitButton->setText(QCoreApplication::translate("MainWindow", "W", nullptr));
        leftButton->setText(QString());
        deleteButton->setText(QCoreApplication::translate("MainWindow", "<", nullptr));
        rightButton->setText(QString());
        botControlsLabel->setText(QCoreApplication::translate("MainWindow", "Programmieren", nullptr));
        repeatDropdown->setItemText(0, QCoreApplication::translate("MainWindow", "1", nullptr));
        repeatDropdown->setItemText(1, QCoreApplication::translate("MainWindow", "2", nullptr));
        repeatDropdown->setItemText(2, QCoreApplication::translate("MainWindow", "3", nullptr));
        repeatDropdown->setItemText(3, QCoreApplication::translate("MainWindow", "4", nullptr));
        repeatDropdown->setItemText(4, QCoreApplication::translate("MainWindow", "5", nullptr));

        repeatDropdown->setCurrentText(QCoreApplication::translate("MainWindow", "1", nullptr));
        botCommandTextEdit->setPlaceholderText(QCoreApplication::translate("MainWindow", "Textfeld", nullptr));
        label->setText(QCoreApplication::translate("MainWindow", "Umgebungskarte", nullptr));
    } // retranslateUi

};

namespace Ui {
    class MainWindow: public Ui_MainWindow {};
} // namespace Ui

QT_END_NAMESPACE

#endif // PATCHBOT_GUI_H

由于我正在使用 VS 2019 并安装了“QT VS Tools”扩展，我还可以使用新的“将项目转换为 Qmake 生成的项目”工具。这里的问题是，我真的不知道它是如何工作的。我.pro使用“打开 Qt 项目文件...”功能从 Qt Designer 打开了我的文件，然后使用了上面提到的工具。该过程完成后，我没有看到任何更改或新文件。我错过了什么？我需要做其他事情吗？

如果需要更多信息，我很乐意提供帮助。

Answer 1

基本上，最小的 Qt 独立示例是两个源文件、一个头文件和 UI XML 文件：

• 有包含main函数的“主”源文件
• 有一个“主窗口”源文件，其中包含主窗口的实现
• 有“主窗口”头文件
• 如前所述，有 UI XML 文件

“主”源文件可能非常简单，它所做的只是创建一个QApplication对象和MainWindow对象。它显示主窗口，然后进入应用程序事件循环：

#include <QApplication>
#include "MainWindow.h"

int main(int argc, char* argv[])
{
    QApplication app(argc, argv);
    MainWindow window;

    window.show();  // Show the main window

    return app.exec();  // Run the application event loop
}

“主窗口”头文件开始也很简单：

#include <QMainWindow>

namespace Ui
{
    class MainWindow;  // This is the "main window" from the UI XML file
}

class MainWindow : public QMainWindow
{
    Q_OBJECT

public:
    MainWindow(QWidget* parent = nullptr);
    ~MainWindow();

private:
    Ui::MainWindow* ui;  // Pointer to the UI generated by the XML file and the uic program
};

最后是“主窗口”实现源文件：

#include "MainWindow.h"
#include "ui_mainwindow.h"  // This is the automatically generated header file created by uic

MainWindow::MainWindow(QWidget* parent /* = nullptr */)
    : QMainWindow(parent),
      ui(new Ui::MainWindow)
{
    ui->setupUi(this);
}

MainWindow::~MainWindow()
{
    delete ui;
}

您还需要运行uic程序从 UI XML 文件生成所需的源文件，然后使用源文件进行构建。您还需要使用该moc工具来解析插槽和信号。

所有这些都应该在您可以在网上找到的大多数教程中找到。