C++学习之路（十五）C++ 用Qt5实现一个工具箱（增加16进制颜色码转换和屏幕颜色提取功能）- 示例代码拆分讲解

本文介绍: 上篇文章，我们用 Qt5 实现了在小工具箱中添加了《Ba s e64图片编码预览功能》功能。为了继续丰富我们的工具箱，今天我们就再增加两个平时经常用到的功能吧，就是「 16进制颜色码转RGB文本」和「屏幕颜色提取」功能。下面我们就来看看如何来规划开发这样的小功能并且添加到我们的工具箱中吧。

上篇文章，我们用 Qt5 实现了在小工具箱中添加了《Base64图片编码预览功能》功能。为了继续丰富我们的工具箱，今天我们就再增加两个平时经常用到的功能吧，就是「 16进制颜色码转RGB文本 」和「屏幕颜色提取」功能。下面我们就来看看如何来规划开发这样的小功能并且添加到我们的工具箱中吧。

老规矩，先上图

16进制转RGB

在这里插入图片描述

RGB转16进制

在这里插入图片描述

屏幕颜色 提取

在这里插入图片描述

功能概述：颜色码转换和屏幕颜色 提取

颜色码转换功能：
- 输入：支持输入RGB颜色代码或16进制颜色代码。
- 输出：转换为另一种格式的颜色代码。
- 操作：支持从RGB转换为16进制和反之转换。
屏幕颜色提取功能：
- 操作：捕获屏幕上鼠标位置的颜色信息。
- 展示：显示提取到的颜色，包括16进制颜色代码和颜色预览。
- 交互：启动功能后，可以在屏幕上移动鼠标以实时获取不同位置的颜色。
- 终止：点击特定键盘按键（例如按下Tab键）以停止捕获。

需求 概述：

颜色码转换功能：
- 用户友好：提供清晰的界面，支持输入RGB或16进制颜色代码。
- 格式转换：允许用户在RGB和16进制颜色代码之间进行转换。
- 展示结果：将转换后的颜色代码显示给用户。
屏幕颜色提取功能：
- 启动捕获：点击按钮启动颜色捕获功能。
- 显示颜色：在界面上显示捕获到的颜色代码和颜色预览。
- 实时更新：随着鼠标移动，实时显示不同位置的颜色。
- 停止捕获：通过特定操作（例如按下Ta b键）停止捕获颜色。
- 异常处理：处理未找到屏幕或捕获颜色失败的情况。

这样的功能旨在提供一个便捷的界面，允许用户在RGB和16进制颜色代码之间自由转换，并且能够在屏幕上捕获颜色以获取准确的颜色信息。

核心代码实现

class ColorConverter : public QWidget {
Q_OBJECT
public:
    explicit ColorConverter(QWidget *parent = nullptr) : QWidget(parent) {
        // 在构造函数中初始化定时器
        colorTimer = new QTimer(this);
        colorTimer-&gt;setInterval(100); // 设置定时器间隔为100毫秒
        connect(colorTimer, &amp;QTimer::timeout, this, &amp;ColorConverter::extractScreenColor);

        auto *layout = new QVBoxLayout(this);

        // 创建颜色值转换部分的输入框和按钮
        colorInput = new QLineEdit(this);
        layout-&gt;addWidget(colorInput);

        convertButton = new QPushButton("16进制转RGB", this);
        connect(convertButton, &amp;QPushButton::clicked, this, &amp;ColorConverter::convertToRgbColor);
        layout-&gt;addWidget(convertButton);

        convertButton = new QPushButton("RGB转16进制", this);
        connect(convertButton, &amp;QPushButton::clicked, this, &amp;ColorConverter::convertToHexColor);
        layout-&gt;addWidget(convertButton);

        convertedColorOutput = new QTextEdit(this);
        convertedColorOutput-&gt;setReadOnly(true);
        layout-&gt;addWidget(convertedColorOutput);

        // 创建屏幕颜色提取器部分的按钮和显示框
        extractColorButton = new QPushButton("开始提取屏幕颜色", this);
        connect(extractColorButton, &amp;QPushButton::clicked, this, &amp;ColorConverter::startColorCapture);
        layout-&gt;addWidget(extractColorButton);

        // 创建用于存放颜色块和颜色输出的网格布局
        auto *colorBlockLayout = new QGridLayout();

        // 创建颜色输出
        screenColorOutput = new QLabel(this);
        screenColorOutput-&gt;setFixedSize(200, 90);
        screenColorOutput-&gt;setAlignment(Qt::AlignCenter);
        screenColorOutput->setStyleSheet("border: 1px solid #ddd");
        colorBlockLayout->addWidget(screenColorOutput, 0, 0); // 将颜色输出放在网格布局的左上角

        // 创建颜色块
        screenColorBlock = new QLabel(this);
        screenColorBlock->setFixedSize(30, 30); // 设置颜色块大小
        screenColorBlock->setStyleSheet("border: 1px solid #ddd");
        colorBlockLayout->addWidget(screenColorBlock, 0, 0, Qt::AlignTop | Qt::AlignRight); // 将颜色块放在颜色输出的右上角

        layout->addLayout(colorBlockLayout);

        setLayout(layout);

        installEventFilter(this); // 安装事件过滤器以捕获鼠标事件
    }

protected slots:

    void convertToHexColor() {
        // 从输入框获取颜色值
        QString colorText = colorInput->text();
        // 按逗号分隔RGB文本
        QStringList rgbValues = colorText.split(',');
        if (rgbValues.size() == 3) {
            // 获取R、G和B的值
            int red = rgbValues[0].toInt();
            int green = rgbValues[1].toInt();
            int blue = rgbValues[2].toInt();

            // 将RGB值转换为16进制字符串
            QString hexRed = QString("%1").arg(red, 2, 16, QChar('0')).toUpper();
            QString hexGreen = QString("%1").arg(green, 2, 16, QChar('0')).toUpper();
            QString hexBlue = QString("%1").arg(blue, 2, 16, QChar('0')).toUpper();

            // 构建16进制颜色代码文本
            QString hexText = QString("#%1%2%3").arg(hexRed).arg(hexGreen).arg(hexBlue);
            convertedColorOutput->setText(hexText);
        } else {
            // 处理无效颜色输入的情况
            convertedColorOutput->setText("Invalid color input");
        }
    }

    void convertToRgbColor() {
        // 从输入框获取颜色值
        QString colorText = colorInput->text();
        QColor color(colorText);
        if (color.isValid()) {
            // 获取16进制颜色码的红、绿、蓝通道值
            int red = color.red();
            int green = color.green();
            int blue = color.blue();
            // 构建RGB颜色代码文本
            QString outputText = QString("RGB(%1, %2, %3)").arg(red).arg(green).arg(blue);
            convertedColorOutput->setText(outputText);
        } else {
            // 处理无效颜色输入的情况
            convertedColorOutput->setText("Invalid color input");
        }
    }

    // 开始捕获颜色的槽函数
    void startColorCapture() {
        extractColorButton->setText("请开始移动鼠标 按Tab键终止取色");
        colorTimer->start();
    }

    void extractScreenColor() {
        QPoint cursorPos = QCursor::pos();
        QScreen *screen = QGuiApplication::screenAt(cursorPos);

        if (screen) {
            QPixmap screenshot = screen->grabWindow(0, cursorPos.x(), cursorPos.y(), 1, 1);
            if (!screenshot.isNull()) {
                QColor color = screenshot.toImage().pixel(0, 0);
                QString colorText = QString("Screen Color: #%1").arg(color.name().mid(1));
                screenColorOutput->setText(colorText);

                QString styleSheet = QString("background-color: %1; border: 1px solid #ddd;").arg(color.name());
                screenColorBlock->setStyleSheet(styleSheet);
            } else {
                screenColorOutput->setText("Failed to grab screen color");
            }
        } else {
            screenColorOutput->setText("No screen found at the cursor position");
        }
    }

    // 停止捕获颜色的槽函数
    void stopColorCapture() {
        colorTimer->stop();
        extractColorButton->setText("开始提取屏幕颜色");
    }
protected:
    // 捕获松开Tab按键事件
    bool eventFilter(QObject *watched, QEvent *event) override {
        if (event->type() == QEvent::WindowDeactivate || event->type() == QEvent::KeyRelease) {
            stopColorCapture();
            return true;
        }
        return QObject::eventFilter(watched, event);
    }

private:
    QLineEdit *colorInput;
    QPushButton *convertButton;
    QTextEdit *convertedColorOutput;
    QPushButton *extractColorButton;
    QLabel *screenColorOutput;
    QLabel *screenColorBlock;
    QTimer *colorTimer;
};

核心代码讲解

让我们逐段解析 ColorConverter 类的代码。

class ColorConverter : public QWidget {
Q_OBJECT
public:
    explicit ColorConverter(QWidget *parent = nullptr) : QWidget(parent) {
        // 在构造函数中初始化定时器
        colorTimer = new QTimer(this);
        colorTimer->setInterval(100); // 设置定时器间隔为100毫秒
        connect(colorTimer, &amp;QTimer::timeout, this, &amp;ColorConverter::extractScreenColor);

        auto *layout = new QVBoxLayout(this);
        // 创建颜色值转换部分的输入框和按钮
        colorInput = new QLineEdit(this);
        layout->addWidget(colorInput);
        // ...（略）
        installEventFilter(this); // 安装事件过滤器以捕获鼠标事件
    }
    // ...（略）
};

构造函数与定时器初始化：构造函数中创建了一个 ColorConverter 对象，并初始化了一个定时器 colorTimer。这个定时器用于每 100 毫秒触发一次屏幕颜色提取功能，并与 extractScreenColor 函数连接。
界面布局初始化：在构造函数中，使用了垂直布局管理器 QVBoxLayout，并添加了颜色输入框到布局中。
事件过滤器安装：installEventFilter(this) 安装了一个事件过滤器来监视该对象所接收到的事件。在这个场景中，它用于捕获鼠标事件以停止颜色提取。

转换函数

void convertToHexColor() {
    // 获取输入框中的颜色值，转换为16进制
    // ...
}

void convertToRgbColor() {
    // 获取输入框中的颜色值，转换为RGB格式
    // ...
}

QLineEdit 和 QTextEdit：分别用于输入和显示颜色值，convertToHexColor 和 convertToRgbColor 函数用于颜色转换。

屏幕颜色提取器

void startColorCapture() {
    // 开始捕获颜色的槽函数
    // ...
}

void extractScreenColor() {
    // 提取屏幕颜色的槽函数
    // ...
}

void stopColorCapture() {
    // 停止颜色捕获的槽函数
    // ...
}

QPushButton 和 QLabel：extractColorButton 用于启动颜色捕获，screenColorOutput 和 screenColorBloc k 用于显示屏幕颜色信息。

事件过滤器

bool eventFilter(QObject *watched, QEvent *event) override {
    // 事件过滤器，捕获键盘事件以终止颜色捕获
    // ...
}

QObject 和 QEvent：eventFilter 捕获键盘事件，当用户按下 Tab 键松开时终止颜色捕获。

总结

主要利用了 Qt 中的 QWidget、QObject、QTimer、QLineEdit、QPushButton、QTextEdit、QLabel 等部件，以及事件过滤器功能来实现颜色转换和屏幕颜色提取的功能。按钮的点击触发不同的槽函数，展示了转换后的颜色信息或从屏幕获取的颜色信息。同时，通过事件过滤器监听键盘事件，以实现终止屏幕颜色提取的功能。

讲解完毕，下面是完整代码，复制到 本地跑一跑吧~

#include <QApplication>
#include <QWidget>
#include <QPushButton>
#include <QVBoxLayout>
#include <QMessageBox>
#include <QDebug>
#include <QListWidget>
#include <QClipboard>
#include <QMimeData>
#include <QTextEdit>
#include <QJsonDocument>
#include <QJsonObject>
#include <QDateTime>
#include <QLabel>
#include <QComboBox>
#include <QLineEdit>
#include <QXmlStreamReader>
#include <QFile>
#include <QFileDialog>
#include <QScreen>
#include <QCursor>
#include <QPoint>
#include <QGuiApplication>
#include <QPixmap>
#include <QHBoxLayout>
#include <QThread>
#include <QMouseEvent>
#include <QTimer>

#define myApp (dynamic_cast<QApplication *>(QCoreApplication::instance()))

class ColorConverter : public QWidget {
Q_OBJECT
public:
    explicit ColorConverter(QWidget *parent = nullptr) : QWidget(parent) {
        // 在构造函数中初始化定时器
        colorTimer = new QTimer(this);
        colorTimer->setInterval(100); // 设置定时器间隔为100毫秒
        connect(colorTimer, &amp;QTimer::timeout, this, &amp;ColorConverter::extractScreenColor);

        auto *layout = new QVBoxLayout(this);

        // 创建颜色值转换部分的输入框和按钮
        colorInput = new QLineEdit(this);
        layout->addWidget(colorInput);

        convertButton = new QPushButton("16进制转RGB", this);
        connect(convertButton, &amp;QPushButton::clicked, this, &amp;ColorConverter::convertToRgbColor);
        layout->addWidget(convertButton);

        convertButton = new QPushButton("RGB转16进制", this);
        connect(convertButton, &amp;QPushButton::clicked, this, &amp;ColorConverter::convertToHexColor);
        layout->addWidget(convertButton);

        convertedColorOutput = new QTextEdit(this);
        convertedColorOutput->setReadOnly(true);
        layout->addWidget(convertedColorOutput);

        // 创建屏幕颜色提取器部分的按钮和显示框
        extractColorButton = new QPushButton("开始提取屏幕颜色", this);
        connect(extractColorButton, &QPushButton::clicked, this, &ColorConverter::startColorCapture);
        layout->addWidget(extractColorButton);

        // 创建用于存放颜色块和颜色输出的网格布局
        auto *colorBlockLayout = new QGridLayout();

        // 创建颜色输出
        screenColorOutput = new QLabel(this);
        screenColorOutput->setFixedSize(200, 90);
        screenColorOutput->setAlignment(Qt::AlignCenter);
        screenColorOutput->setStyleSheet("border: 1px solid #ddd");
        colorBlockLayout->addWidget(screenColorOutput, 0, 0); // 将颜色输出放在网格布局的左上角

        // 创建颜色块
        screenColorBlock = new QLabel(this);
        screenColorBlock->setFixedSize(30, 30); // 设置颜色块大小
        screenColorBlock->setStyleSheet("border: 1px solid #ddd");
        colorBlockLayout->addWidget(screenColorBlock, 0, 0, Qt::AlignTop | Qt::AlignRight); // 将颜色块放在颜色输出的右上角

        layout->addLayout(colorBlockLayout);

        setLayout(layout);

        installEventFilter(this); // 安装事件过滤器以捕获鼠标事件
    }

protected slots:

    void convertToHexColor() {
        // 从输入框获取颜色值
        QString colorText = colorInput->text();
        // 按逗号分隔RGB文本
        QStringList rgbValues = colorText.split(',');
        if (rgbValues.size() == 3) {
            // 获取R、G和B的值
            int red = rgbValues[0].toInt();
            int green = rgbValues[1].toInt();
            int blue = rgbValues[2].toInt();

            // 将RGB值转换为16进制字符串
            QString hexRed = QString("%1").arg(red, 2, 16, QChar('0')).toUpper();
            QString hexGreen = QString("%1").arg(green, 2, 16, QChar('0')).toUpper();
            QString hexBlue = QString("%1").arg(blue, 2, 16, QChar('0')).toUpper();

            // 构建16进制颜色代码文本
            QString hexText = QString("#%1%2%3").arg(hexRed).arg(hexGreen).arg(hexBlue);
            convertedColorOutput->setText(hexText);
        } else {
            // 处理无效颜色输入的情况
            convertedColorOutput->setText("Invalid color input");
        }
    }

    void convertToRgbColor() {
        // 从输入框获取颜色值
        QString colorText = colorInput->text();
        QColor color(colorText);
        if (color.isValid()) {
            // 获取16进制颜色码的红、绿、蓝通道值
            int red = color.red();
            int green = color.green();
            int blue = color.blue();
            // 构建RGB颜色代码文本
            QString outputText = QString("RGB(%1, %2, %3)").arg(red).arg(green).arg(blue);
            convertedColorOutput->setText(outputText);
        } else {
            // 处理无效颜色输入的情况
            convertedColorOutput->setText("Invalid color input");
        }
    }

    // 开始捕获颜色的槽函数
    void startColorCapture() {
        extractColorButton->setText("请开始移动鼠标 按Tab键终止取色");
        colorTimer->start();
    }

    void extractScreenColor() {
        QPoint cursorPos = QCursor::pos();
        QScreen *screen = QGuiApplication::screenAt(cursorPos);

        if (screen) {
            QPixmap screenshot = screen->grabWindow(0, cursorPos.x(), cursorPos.y(), 1, 1);
            if (!screenshot.isNull()) {
                QColor color = screenshot.toImage().pixel(0, 0);
                QString colorText = QString("Screen Color: #%1").arg(color.name().mid(1));
                screenColorOutput->setText(colorText);

                QString styleSheet = QString("background-color: %1; border: 1px solid #ddd;").arg(color.name());
                screenColorBlock->setStyleSheet(styleSheet);
            } else {
                screenColorOutput->setText("Failed to grab screen color");
            }
        } else {
            screenColorOutput->setText("No screen found at the cursor position");
        }
    }

    // 停止捕获颜色的槽函数
    void stopColorCapture() {
        colorTimer->stop();
        extractColorButton->setText("开始提取屏幕颜色");
    }
protected:
    // 捕获松开Tab按键事件
    bool eventFilter(QObject *watched, QEvent *event) override {
        if (event->type() == QEvent::WindowDeactivate || event->type() == QEvent::KeyRelease) {
            stopColorCapture();
            return true;
        }
        return QObject::eventFilter(watched, event);
    }

private:
    QLineEdit *colorInput;
    QPushButton *convertButton;
    QTextEdit *convertedColorOutput;
    QPushButton *extractColorButton;
    QLabel *screenColorOutput;
    QLabel *screenColorBlock;
    QTimer *colorTimer;
};

class Base64ImageConverter : public QWidget {
Q_OBJECT
public:
    explicit Base64ImageConverter(QWidget *parent = nullptr) : QWidget(parent) {
        auto *layout = new QVBoxLayout(this);

        selectImageButton = new QPushButton("选择图片", this);
        connect(selectImageButton, &QPushButton::clicked, this, &Base64ImageConverter::selectImage);
        layout->addWidget(selectImageButton);

        imagePathTextEdit = new QTextEdit(this);
        imagePathTextEdit->setReadOnly(true);
        layout->addWidget(imagePathTextEdit);

        convertToBase64Button = new QPushButton("转换为Base64编码", this);
        connect(convertToBase64Button, &QPushButton::clicked, this, &Base64ImageConverter::convertToBase64);
        layout->addWidget(convertToBase64Button);

        base64OutputTextEdit = new QTextEdit(this);
        base64OutputTextEdit->setAcceptRichText(false);
        layout->addWidget(base64OutputTextEdit);

        convertToImagePreviewButton = new QPushButton("Base64编码转图片预览", this);
        connect(convertToImagePreviewButton, &QPushButton::clicked, this, &Base64ImageConverter::convertToImagePreview);
        layout->addWidget(convertToImagePreviewButton);

        imagePreviewLabel = new QLabel(this);
        imagePreviewLabel->setFixedHeight(200); // 设置图片高度为 200
        layout->addWidget(imagePreviewLabel);

        setLayout(layout);
    }

private slots:

    void selectImage() {
        // 创建文件对话框用于选择图片文件
        QString imagePath = QFileDialog::getOpenFileName(this, tr("选择图片"), "", tr("Images (*.png *.jpg *.bmp)"));

        // 如果用户选择了图片文件，则显示文件路径
        if (!imagePath.isEmpty()) {
            imagePathTextEdit->setText(imagePath);
            selectedImagePath = imagePath;
        }
    }

    void convertToBase64() {
        if (selectedImagePath.isEmpty()) {
            QMessageBox::warning(this, "警告", "请先选择图片");
            return;
        }

        // 读取选定图片文件的内容
        QFile file(selectedImagePath);
        if (file.open(QIODevice::ReadOnly)) {
            QByteArray imageData = file.readAll();
            QString base64Data = imageData.toBase64();

            base64OutputTextEdit->setText(base64Data);
        } else {
            QMessageBox::critical(this, "错误", "无法读取图片文件");
        }
    }

    void convertToImagePreview() {
        QString base64Data = base64OutputTextEdit->toPlainText().toUtf8();

        if (base64Data.isEmpty()) {
            QMessageBox::warning(this, "警告", "请先转换为Base64编码");
            return;
        }

        // 从Base64数据创建QImage并显示在标签中
        QByteArray byteArray = QByteArray::fromBase64(base64Data.toUtf8());
        QImage image;
        image.loadFromData(byteArray);

        if (!image.isNull()) {
            // 水平居中对齐
            imagePreviewLabel->setAlignment(Qt::AlignHCenter);
            // 缩放图片到 200x200
            QPixmap pixmap = QPixmap::fromImage(image.scaled(200, 200, Qt::KeepAspectRatio));
            imagePreviewLabel->setPixmap(pixmap);
        } else {
            QMessageBox::critical(this, "错误", "无法加载图片");
        }
    }

private:
    QPushButton *selectImageButton;
    QTextEdit *imagePathTextEdit;
    QPushButton *convertToBase64Button;
    QTextEdit *base64OutputTextEdit;
    QPushButton *convertToImagePreviewButton;
    QLabel *imagePreviewLabel;
    QString selectedImagePath;
};

class Base64Converter : public QWidget {
Q_OBJECT
public:
    explicit Base64Converter(QWidget *parent = nullptr) : QWidget(parent) {
        auto *layout = new QVBoxLayout(this);

        inputTextEdit = new QTextEdit(this);
        layout->addWidget(inputTextEdit);

        encryptButton = new QPushButton("加密", this);
        connect(encryptButton, &QPushButton::clicked, this, &Base64Converter::encryptText);
        layout->addWidget(encryptButton);

        decryptButton = new QPushButton("解密", this);
        connect(decryptButton, &QPushButton::clicked, this, &Base64Converter::decryptText);
        layout->addWidget(decryptButton);

        outputTextEdit = new QTextEdit(this);
        outputTextEdit->setReadOnly(true);
        layout->addWidget(outputTextEdit);

        setLayout(layout);
    }

private slots:

    void encryptText() {
        QString inputText = inputTextEdit->toPlainText().toUtf8();
        QByteArray byteArray = inputText.toUtf8().toBase64();
        outputTextEdit->setText(byteArray);
    }

    void decryptText() {
        QString inputText = inputTextEdit->toPlainText();
        QByteArray byteArray = QByteArray::fromBase64(inputText.toUtf8());
        outputTextEdit->setText(byteArray);
    }

private:
    QTextEdit *inputTextEdit;
    QTextEdit *outputTextEdit;
    QPushButton *encryptButton;
    QPushButton *decryptButton;
};

class XmlFormatter : public QWidget {
Q_OBJECT
public:
    explicit XmlFormatter(QWidget *parent = nullptr) : QWidget(parent) {
        auto *layout = new QVBoxLayout(this);

        inputTextEdit = new QTextEdit(this);
        layout->addWidget(inputTextEdit);

        formatButton = new QPushButton("格式化 XML", this);
        connect(formatButton, &QPushButton::clicked, this, &XmlFormatter::formatXml);
        layout->addWidget(formatButton);

        outputTextEdit = new QTextEdit(this);
        outputTextEdit->setReadOnly(true);
        layout->addWidget(outputTextEdit);

        setLayout(layout);
    }

private slots:

    void formatXml() {
        // 获取输入的XML文本
        QString inputText = inputTextEdit->toPlainText();

        if (!inputText.isEmpty()) {
            // 使用 QXmlStreamReader 读取输入的 XML 文本
            QXmlStreamReader reader(inputText);
            QString formattedXml;

            int indentLevel = 0;
            while (!reader.atEnd() && !reader.hasError()) {
                if (reader.isStartElement()) {
                    formattedXml += getIndent(indentLevel) + "<" + reader.name().toString() + ">n";
                    ++indentLevel;
                } else if (reader.isEndElement()) {
                    --indentLevel;
                    formattedXml += getIndent(indentLevel) + "</" + reader.name().toString() + ">n";
                } else if (reader.isCharacters() && !reader.isWhitespace()) {
                    formattedXml += getIndent(indentLevel) + reader.text().toString() + "n";
                }
                reader.readNext();
            }

            if (reader.hasError()) {
                outputTextEdit->setText("XML 解析错误：" + reader.errorString());
            } else {
                outputTextEdit->setText(formattedXml);
            }
        } else {
            // 如果输入为空，则清空输出区域
            outputTextEdit->clear();
        }
    }

    static QString getIndent(int level) {
        return QString(level * 4, ' '); // 4空格作为缩进
    }

private:
    QTextEdit *inputTextEdit;
    QPushButton *formatButton;
    QTextEdit *outputTextEdit;
};

class NumberBaseConverter : public QWidget {
Q_OBJECT
public:
    explicit NumberBaseConverter(QWidget *parent = nullptr) : QWidget(parent) {
        auto *layout = new QVBoxLayout(this);
        // 横向排列的输入框和选择框
        auto *horizontalLayout = new QHBoxLayout();

        // 创建输入框并添加到水平布局
        inputLineEdit = new QLineEdit(this);
        horizontalLayout->addWidget(inputLineEdit);

        // 连接输入框的文本变化信号到槽函数
        connect(inputLineEdit, &QLineEdit::textChanged, this, &NumberBaseConverter::convertNumber);

        // 创建下拉选择框并添加到水平布局
        baseComboBox = new QComboBox(this);
        baseComboBox->addItem("二进制");
        baseComboBox->addItem("八进制");
        baseComboBox->addItem("十进制");
        baseComboBox->addItem("十六进制");
        horizontalLayout->addWidget(baseComboBox);

        // 将水平布局添加到垂直布局
        layout->addLayout(horizontalLayout);

        // 创建四个只读的输出框并添加到垂直布局
        binaryOutput = new QLineEdit(this);
        binaryOutput->setReadOnly(true);
        layout->addWidget(binaryOutput);

        octalOutput = new QLineEdit(this);
        octalOutput->setReadOnly(true);
        layout->addWidget(octalOutput);

        decimalOutput = new QLineEdit(this);
        decimalOutput->setReadOnly(true);
        layout->addWidget(decimalOutput);

        hexOutput = new QLineEdit(this);
        hexOutput->setReadOnly(true);
        layout->addWidget(hexOutput);

        // 连接下拉选择框的选择变化信号到槽函数，并进行初始转换
        connect(baseComboBox, QOverload<int>::of(&QComboBox::currentIndexChanged), this,
                &NumberBaseConverter::convertNumber);
        convertNumber(); // 初始转换

        setLayout(layout); // 设置整体布局
    }

private slots:

    void convertNumber() {
        QString inputText = inputLineEdit->text();
        bool ok;
        int base = baseComboBox->currentIndex();

        if (!inputText.isEmpty()) {
            // 根据所选进制进行转换
            if (base == 0) {
                int number = inputText.toInt(&ok, 2); // 二进制转十进制
                if (ok) {
                    binaryOutput->setText(inputText);
                    octalOutput->setText(QString::number(number, 8));
                    decimalOutput->setText(QString::number(number));
                    hexOutput->setText(QString::number(number, 16).toUpper());
                }
            } else if (base == 1) {
                // 八进制转换
                int number = inputText.toInt(&ok, 8);
                if (ok) {
                    binaryOutput->setText(QString::number(number, 2));
                    octalOutput->setText(inputText);
                    decimalOutput->setText(QString::number(number));
                    hexOutput->setText(QString::number(number, 16).toUpper());
                }
            } else if (base == 2) {
                // 十进制转换
                int number = inputText.toInt(&ok, 10);
                if (ok) {
                    binaryOutput->setText(QString::number(number, 2));
                    octalOutput->setText(QString::number(number, 8));
                    decimalOutput->setText(inputText);
                    hexOutput->setText(QString::number(number, 16).toUpper());
                }
            } else if (base == 3) {
                // 十六进制转换
                int number = inputText.toInt(&ok, 16);
                if (ok) {
                    binaryOutput->setText(QString::number(number, 2));
                    octalOutput->setText(QString::number(number, 8));
                    decimalOutput->setText(QString::number(number));
                    hexOutput->setText(inputText.toUpper());
                }
            }
        } else {
            // 如果输入为空，则清空输出
            binaryOutput->clear();
            octalOutput->clear();
            decimalOutput->clear();
            hexOutput->clear();
        }
    }

private:
    QLineEdit *inputLineEdit;
    QComboBox *baseComboBox;
    QLineEdit *binaryOutput;
    QLineEdit *octalOutput;
    QLineEdit *decimalOutput;
    QLineEdit *hexOutput;
};

class PlaceholderTextEdit : public QWidget {
Q_OBJECT
public:
    explicit PlaceholderTextEdit(const QString &placeholderText, QWidget *parent = nullptr) : QWidget(parent) {
        auto *layout = new QVBoxLayout(this);

        placeholderLabel = new QLabel(placeholderText, this);
        layout->addWidget(placeholderLabel);

        textEdit = new QTextEdit(this);
        layout->addWidget(textEdit);

        connect(textEdit, &QTextEdit::textChanged, this, &PlaceholderTextEdit::checkPlaceholder);
        checkPlaceholder(); // 初始检查

        setLayout(layout);
    }

    QString getText() const {
        return textEdit->toPlainText();
    }

private slots:

    void checkPlaceholder() {
        placeholderLabel->setVisible(textEdit->toPlainText().isEmpty());
    }

private:
    QLabel *placeholderLabel;
    QTextEdit *textEdit;
};

class DateTimeTimestampConverter : public QWidget {
Q_OBJECT
public:
    explicit DateTimeTimestampConverter(QWidget *parent = nullptr) : QWidget(parent) {
        auto *layout = new QVBoxLayout(this);

        inputTextEdit = new PlaceholderTextEdit("在此输入日期时间或时间戳", this);
        layout->addWidget(inputTextEdit);

        convertToTimestampButton = new QPushButton("日期时间转时间戳", this);
        connect(convertToTimestampButton, &QPushButton::clicked, this, &DateTimeTimestampConverter::convertToTimestamp);
        layout->addWidget(convertToTimestampButton);

        convertToDateTimeButton = new QPushButton("时间戳转日期时间", this);
        connect(convertToDateTimeButton, &QPushButton::clicked, this, &DateTimeTimestampConverter::convertToDateTime);
        layout->addWidget(convertToDateTimeButton);

        outputTextEdit = new QTextEdit(this);
        outputTextEdit->setReadOnly(true);
        layout->addWidget(outputTextEdit);

        setLayout(layout);
    }

private slots:

    void convertToTimestamp() {
        QString inputText = inputTextEdit->getText();
        QDateTime dateTime = QDateTime::fromString(inputText, "yyyy-MM-dd HH:mm:ss");

        if (dateTime.isValid()) {
            qint64 timestamp = dateTime.toSecsSinceEpoch();
            outputTextEdit->setText(QString::number(timestamp));
        } else {
            outputTextEdit->setText("无效的日期时间格式！");
        }
    }

    void convertToDateTime() {
        QString inputText = inputTextEdit->getText();
        bool ok;
        qint64 timestamp = inputText.toLongLong(&ok);

        if (ok) {
            QDateTime dateTime;
            dateTime.setSecsSinceEpoch(timestamp);

            outputTextEdit->setText("时间戳 " + inputText + " 对应的日期时间是：" + dateTime.toString("yyyy-MM-dd HH:mm:ss"));
        } else {
            outputTextEdit->setText("无效的时间戳格式！");
        }
    }

private:
    QPushButton *convertToTimestampButton;
    QPushButton *convertToDateTimeButton;
    QTextEdit *outputTextEdit;
    PlaceholderTextEdit *inputTextEdit;
};

class JsonFormatter : public QWidget {
Q_OBJECT
public:
    explicit JsonFormatter(QWidget *parent = nullptr) : QWidget(parent) {
        auto *layout = new QVBoxLayout(this);

        inputTextEdit = new QTextEdit(this);
        layout->addWidget(inputTextEdit);

        formatButton = new QPushButton("格式化", this);
        connect(formatButton, &QPushButton::clicked, this, &JsonFormatter::formatJson);
        layout->addWidget(formatButton);

        outputTextEdit = new QTextEdit(this);
        outputTextEdit->setReadOnly(true);
        layout->addWidget(outputTextEdit);

        setLayout(layout);
    }

private slots:

    void formatJson() {
        QString inputText = inputTextEdit->toPlainText();
        QJsonParseError error{};
        QJsonDocument jsonDoc = QJsonDocument::fromJson(inputText.toUtf8(), &error);

        if (error.error != QJsonParseError::NoError) {
            outputTextEdit->setText("JSON 解析错误：" + error.errorString());
            return;
        }

        QJsonObject jsonObj = jsonDoc.object();
        QJsonDocument formattedJson(jsonObj);

        outputTextEdit->setText(formattedJson.toJson());
    }

private:
    QTextEdit *inputTextEdit;
    QPushButton *formatButton;
    QTextEdit *outputTextEdit;
};

class ClipboardManager : public QWidget {
Q_OBJECT
public:
    explicit ClipboardManager(QWidget *parent = nullptr) : QWidget(parent) {
        auto *layout = new QVBoxLayout(this);

        listWidget = new QListWidget(this);
        updateList(); // 初始更新列表

        auto *clearButton = new QPushButton("清空记录", this);
        connect(clearButton, &QPushButton::clicked, this, &ClipboardManager::clearClipboard);

        layout->addWidget(listWidget);
        layout->addWidget(clearButton);

        setLayout(layout);

        connect(myApp->clipboard(), &QClipboard::dataChanged, this, &ClipboardManager::updateList);
    }

private slots:

    void updateList() {
        const QClipboard *clipboard = myApp->clipboard();
        const QMimeData *mimeData = clipboard->mimeData();

        if (mimeData->hasText()) {
            const QString clipboardText = mimeData->text();

            if (!clipboardText.isEmpty()) {
                listWidget->addItem(clipboardText);
            }
        }
    }

    void clearClipboard() {
        myApp->clipboard()->clear();
        listWidget->clear();
    }

private:
    QListWidget *listWidget;
};

class MyMainWindow : public QWidget {
Q_OBJECT
public:
    explicit MyMainWindow(QWidget *parent = nullptr) : QWidget(parent) {
        setWindowTitle("天河工具箱");

        auto *layout = new QVBoxLayout(this);

        auto *clipboardButton = new QPushButton("显示管理粘贴板记录功能");
        clipboardButton->setObjectName("clipboardButton");
        connect(clipboardButton, &QPushButton::clicked, this, &MyMainWindow::toggleClipboardManager);
        clipboardManager = new ClipboardManager(this);
        clipboardManager->hide();
        layout->addWidget(clipboardManager);
        layout->addWidget(clipboardButton);

        auto *jsonFormatButton = new QPushButton("显示格式化 JSON 功能");
        jsonFormatButton->setObjectName("jsonFormatButton");
        connect(jsonFormatButton, &QPushButton::clicked, this, &MyMainWindow::toggleJsonFormatter);
        jsonFormatter = new JsonFormatter(this);
        jsonFormatter->hide();
        layout->addWidget(jsonFormatter);
        layout->addWidget(jsonFormatButton);

        auto *timestampConverterButton = new QPushButton("显示时间戳转换功能");
        timestampConverterButton->setObjectName("timestampConverterButton");
        connect(timestampConverterButton, &QPushButton::clicked, this, &MyMainWindow::toggleDateTimeTimestampConverter);
        timestampConverter = new DateTimeTimestampConverter(this);
        timestampConverter->hide();
        layout->addWidget(timestampConverter);
        layout->addWidget(timestampConverterButton);

        auto *numberBaseConverterButton = new QPushButton("显示进制转换功能");
        numberBaseConverterButton->setObjectName("numberBaseConverterButton");
        connect(numberBaseConverterButton, &QPushButton::clicked, this, &MyMainWindow::toggleNumberBaseConverter);
        numberBaseConverter = new NumberBaseConverter(this);
        numberBaseConverter->hide();
        layout->addWidget(numberBaseConverter);
        layout->addWidget(numberBaseConverterButton);

        auto *xmlFormatterButton = new QPushButton("显示XML格式化功能");
        xmlFormatterButton->setObjectName("xmlFormatterButton");
        connect(xmlFormatterButton, &QPushButton::clicked, this, &MyMainWindow::toggleXmlFormatter);
        xmlFormatter = new XmlFormatter(this);
        xmlFormatter->hide();
        layout->addWidget(xmlFormatter);
        layout->addWidget(xmlFormatterButton);

        auto *base64ConverterButton = new QPushButton("显示Base64加解密功能");
        base64ConverterButton->setObjectName("base64ConverterButton");
        connect(base64ConverterButton, &QPushButton::clicked, this, &MyMainWindow::toggleBase64Converter);
        base64Converter = new Base64Converter(this);
        base64Converter->hide();
        layout->addWidget(base64Converter);
        layout->addWidget(base64ConverterButton);

        auto *base64ImageConverterButton = new QPushButton("显示Base64图片预览功能");
        base64ImageConverterButton->setObjectName("base64ImageConverterButton");
        connect(base64ImageConverterButton, &QPushButton::clicked, this, &MyMainWindow::toggleBase64ImageConverter);
        base64ImageConverter = new Base64ImageConverter(this);
        base64ImageConverter->hide();
        layout->addWidget(base64ImageConverter);
        layout->addWidget(base64ImageConverterButton);

        auto *colorConverterButton = new QPushButton("显示色值提取转换功能");
        colorConverterButton->setObjectName("colorConverterButton");
        connect(colorConverterButton, &QPushButton::clicked, this, &MyMainWindow::toggleColorConverter);
        colorConverter = new ColorConverter(this);
        colorConverter->hide();
        layout->addWidget(colorConverter);
        layout->addWidget(colorConverterButton);

        setLayout(layout);
    }

private slots:

    void toggleClipboardManager() {
        auto *curButton = findChild<QPushButton *>("clipboardButton");
        if (clipboardManager->isHidden()) {
            if (curButton) {
                curButton->setText("隐藏管理粘贴板记录");
            }
            clipboardManager->show();
        } else {
            if (curButton) {
                curButton->setText("显示管理粘贴板记录");
            }
            clipboardManager->hide();
        }
    }

    void toggleJsonFormatter() {
        auto *curButton = findChild<QPushButton *>("jsonFormatButton");
        if (jsonFormatter->isHidden()) {
            if (curButton) {
                curButton->setText("隐藏格式化 JSON");
            }
            jsonFormatter->show();
        } else {
            if (curButton) {
                curButton->setText("显示格式化 JSON");
            }
            jsonFormatter->hide();
        }
    }

    void toggleDateTimeTimestampConverter() {
        auto *curButton = findChild<QPushButton *>("timestampConverterButton");
        if (timestampConverter->isHidden()) {
            if (curButton) {
                curButton->setText("隐藏时间戳转换");
            }
            timestampConverter->show();
        } else {
            if (curButton) {
                curButton->setText("显示时间戳转换");
            }
            timestampConverter->hide();
        }
    }

    void toggleNumberBaseConverter() {
        auto *curButton = findChild<QPushButton *>("numberBaseConverterButton");
        if (numberBaseConverter->isHidden()) {
            if (curButton) {
                curButton->setText("隐藏进制转换器");
            }
            numberBaseConverter->show();
        } else {
            if (curButton) {
                curButton->setText("显示进制转换器");
            }
            numberBaseConverter->hide();
        }
    }

    void toggleXmlFormatter() {
        auto *curButton = findChild<QPushButton *>("xmlFormatterButton");
        if (xmlFormatter->isHidden()) {
            if (curButton) {
                curButton->setText("隐藏XML格式化");
            }
            xmlFormatter->show();
        } else {
            if (curButton) {
                curButton->setText("显示XML格式化");
            }
            xmlFormatter->hide();
        }
    }

    void toggleBase64Converter() {
        auto *curButton = findChild<QPushButton *>("base64ConverterButton");
        if (base64Converter->isHidden()) {
            if (curButton) {
                curButton->setText("隐藏Base64加解密功能");
            }
            base64Converter->show();
        } else {
            if (curButton) {
                curButton->setText("显示Base64加解密功能");
            }
            base64Converter->hide();
        }
    }

    void toggleBase64ImageConverter() {
        auto *curButton = findChild<QPushButton *>("base64ImageConverterButton");
        if (base64ImageConverter->isHidden()) {
            if (curButton) {
                curButton->setText("隐藏Base64图片预览功能");
            }
            base64ImageConverter->show();
        } else {
            if (curButton) {
                curButton->setText("显示Base64图片预览功能");
            }
            base64ImageConverter->hide();
        }
    }

    void toggleColorConverter() {
        auto *curButton = findChild<QPushButton *>("colorConverterButton");
        if (colorConverter->isHidden()) {
            if (curButton) {
                curButton->setText("隐藏色值提取转换功能");
            }
            colorConverter->show();
        } else {
            if (curButton) {
                curButton->setText("显示色值提取转换功能");
            }
            colorConverter->hide();
        }
    }

private:
    ClipboardManager *clipboardManager;
    JsonFormatter *jsonFormatter;
    DateTimeTimestampConverter *timestampConverter;
    NumberBaseConverter *numberBaseConverter;
    XmlFormatter *xmlFormatter;
    Base64Converter *base64Converter;
    Base64ImageConverter *base64ImageConverter;
    ColorConverter *colorConverter;
};

int main(int argc, char *argv[]) {
    QApplication a(argc, argv);

    MyMainWindow mainWindow;
    mainWindow.show();

    return QApplication::exec();
}

#include "main.moc"