C++学习之路（十八）C++ 用Qt5实现一个工具箱（点击按钮以新窗口打开功能面板）- 示例代码拆分讲解

上篇文章，我们用 Qt5 实现了在小工具箱中添加了《增加托盘图标并且增加显示和退出菜单》功能。今天我们把按钮打开功能的方式改一改，让点击按钮以新窗口打开功能面板。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

在这里插入图片描述

需求功能概述：

当用户点击主窗口的按钮时，需要打开一个新的窗口来显示特定功能的面板。这个新窗口应该包含用户所需功能的相关控件和布局。主要需求包括：

按钮触发：点击主窗口上的按钮触发事件，以在新窗口中显示对应的功能面板。
新窗口显示：打开新窗口时，应该显示相关的功能面板及其布局，可能包括输入框、按钮等控件。
功能面板：新窗口需要根据点击的按钮来显示相应的功能面板，这些面板可能涉及不同的逻辑和交互元素。
事件捕获：在新窗口中可能需要捕获和处理键盘事件、鼠标事件或其他用户交互事件，以响应用户的操作。

在实现过程中，需要创建一个新的窗口（例如使用 QDialog 或 QMainWindow）并设置相应的布局和控件，以便在新窗口中显示用户所需的功能面板。此外，需要确保在新窗口中的事件处理函数中捕获并处理相应的事件，以提供所需的功能和交互体验。

核心实现代码：

class ClipboardManager : public QWidget {
Q_OBJECT
public:explicit ClipboardManager(QWidget *parent = nullptr) : QWidget(parent) {auto *newWindow = new QDialog(this);newWindow->setWindowTitle("粘贴板记录");// ...newWindow->setLayout(layout);newWindow->exec();}private slots:// ...private:// ...
};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("粘贴板记录");clipboardButton->setObjectName("clipboardButton");connect(clipboardButton, &QPushButton::clicked, this, &MyMainWindow::showClipboardManager);layout->addWidget(clipboardButton);setLayout(layout);}protected:// ...
public slots:void showClipboardManager() {new ClipboardManager(this);}// ...
};

核心代码逻辑讲解

这次变更主要包括两个类的修改：MyMainWindow 和 ClipboardManager。

`MyMainWindow` 类：

构造函数变更：主窗口中修改了按钮名字（举例 “粘贴板记录” 按钮）。
槽函数变更：更改了以前的 toggle 函数名为 showXxxx 槽函数，当点击“粘贴板记录”按钮时，showClipboardManager 槽函数会创建一个新的 ClipboardManager 对象，从而打开一个新的对话框来显示粘贴板记录。

`ClipboardManager` 类：

构造函数变更：在构造函数中创建了一个新的对话框（QDialog），用于显示粘贴板记录。
对话框显示：调用 exec() 或者 show() 函数显示对话框，并在其中展示粘贴板记录（在 // ... 部分的代码）。

这次变更主要实现了点击按钮时打开一个新的对话框来展示功能。按钮点击触发了新窗口的生成和显示。

核心代码讲解完毕，下面是完整版代码，复制到本地跑一跑吧~

#include <QApplication>
#include <QWidget>
#include <QPushButton>
#include <QVBoxLayout>
#include <QMessageBox>
#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 <QThread>
#include <QMouseEvent>
#include <QTimer>
#include <QSystemTrayIcon>
#include <QMenu>
#include <QDebug>#define myApp (dynamic_cast<QApplication *>(QCoreApplication::instance()))class ClickableLabel : public QLabel {
Q_OBJECTpublic:explicit ClickableLabel(QWidget *parent = nullptr) : QLabel(parent) {}signals:void clicked();protected:void mousePressEvent(QMouseEvent *event) override {if (event->button() == Qt::LeftButton) {emit clicked();}}
};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 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, &QTimer::timeout, this, &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, &QPushButton::clicked, this, &ColorConverter::convertToRgbColor);layout->addWidget(convertButton);convertButton = new QPushButton("RGB转16进制", this);connect(convertButton, &QPushButton::clicked, this, &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 ClickableLabel(this);screenColorOutput->setFixedSize(200, 90);screenColorOutput->setAlignment(Qt::AlignCenter);screenColorOutput->setStyleSheet("border: 1px solid #ddd");// 这里是触发点击事件后的复制到剪切板的函数调用connect(screenColorOutput, &ClickableLabel::clicked, this, &ColorConverter::copyColorToClipboard);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);}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("#%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");}}void copyColorToClipboard() {// 从screenColorOutput获取颜色信息QString colorText = screenColorOutput->text();// 复制颜色值到剪切板QApplication::clipboard()->setText(colorText);// 弹出提示框显示复制的颜色值QMessageBox::information(this, "颜色已复制", QString("已复制颜色：") + colorText);}public:// 停止捕获颜色的槽函数void stopColorCapture() {colorTimer->stop();extractColorButton->setText("开始提取屏幕颜色");}
private:QLineEdit *colorInput;QPushButton *convertButton;QTextEdit *convertedColorOutput;QPushButton *extractColorButton;ClickableLabel *screenColorOutput;QLabel *screenColorBlock;QTimer *colorTimer;
};class Base64ImageConverter : public QWidget {
Q_OBJECT
public:explicit Base64ImageConverter(QWidget *parent = nullptr) : QWidget(parent) {auto *newWindow = new QDialog(this);newWindow->setWindowTitle("Base64图片预览");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 200layout->addWidget(imagePreviewLabel);newWindow->setLayout(layout);newWindow->exec();}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 200x200QPixmap 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 *newWindow = new QDialog(this);newWindow->setWindowTitle("Base64加解密");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);newWindow->setLayout(layout);newWindow->exec();}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 *newWindow = new QDialog(this);newWindow->setWindowTitle("XML格式化");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);newWindow->setLayout(layout);newWindow->exec();}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 *newWindow = new QDialog(this);newWindow->setWindowTitle("进制转换");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newWindow->setLayout(layout);newWindow->exec();}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 DateTimeTimestampConverter : public QWidget {
Q_OBJECT
public:explicit DateTimeTimestampConverter(QWidget *parent = nullptr) : QWidget(parent) {auto *newWindow = new QDialog(this);newWindow->setWindowTitle("时间戳转换");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);newWindow->setLayout(layout);newWindow->exec();}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 *newWindow = new QDialog(this);newWindow->setWindowTitle("JSON格式化");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);newWindow->setLayout(layout);newWindow->exec();}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 *newWindow = new QDialog(this);newWindow->setWindowTitle("粘贴板记录");// 创建布局并将组件添加到布局中auto *layout = new QVBoxLayout(newWindow);listWidget = new QListWidget(newWindow);updateList(); // 初始更新列表auto *clearButton = new QPushButton("清空记录", newWindow);connect(clearButton, &QPushButton::clicked, this, &ClipboardManager::clearClipboard);layout->addWidget(listWidget);layout->addWidget(clearButton);connect(myApp->clipboard(), &QClipboard::dataChanged, this, &ClipboardManager::updateList);newWindow->setLayout(layout);newWindow->exec();}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("粘贴板记录");clipboardButton->setObjectName("clipboardButton");connect(clipboardButton, &QPushButton::clicked, this, &MyMainWindow::showClipboardManager);layout->addWidget(clipboardButton);auto *jsonFormatButton = new QPushButton("JSON格式化");jsonFormatButton->setObjectName("jsonFormatButton");connect(jsonFormatButton, &QPushButton::clicked, this, &MyMainWindow::showJsonFormatter);layout->addWidget(jsonFormatButton);auto *timestampConverterButton = new QPushButton("时间戳转换");timestampConverterButton->setObjectName("timestampConverterButton");connect(timestampConverterButton, &QPushButton::clicked, this, &MyMainWindow::showDateTimeTimestampConverter);layout->addWidget(timestampConverterButton);auto *numberBaseConverterButton = new QPushButton("进制转换");numberBaseConverterButton->setObjectName("numberBaseConverterButton");connect(numberBaseConverterButton, &QPushButton::clicked, this, &MyMainWindow::showNumberBaseConverter);layout->addWidget(numberBaseConverterButton);auto *xmlFormatterButton = new QPushButton("XML格式化");xmlFormatterButton->setObjectName("xmlFormatterButton");connect(xmlFormatterButton, &QPushButton::clicked, this, &MyMainWindow::showXmlFormatter);layout->addWidget(xmlFormatterButton);auto *base64ConverterButton = new QPushButton("Base64加解密");base64ConverterButton->setObjectName("base64ConverterButton");connect(base64ConverterButton, &QPushButton::clicked, this, &MyMainWindow::showBase64Converter);layout->addWidget(base64ConverterButton);auto *base64ImageConverterButton = new QPushButton("Base64图片预览");base64ImageConverterButton->setObjectName("base64ImageConverterButton");connect(base64ImageConverterButton, &QPushButton::clicked, this, &MyMainWindow::showBase64ImageConverter);layout->addWidget(base64ImageConverterButton);auto *colorConverterButton = new QPushButton("色值提取转换");colorConverterButton->setObjectName("colorConverterButton");connect(colorConverterButton, &QPushButton::clicked, this, &MyMainWindow::showColorConverter);colorConverter = new ColorConverter(this);colorConverter->hide();layout->addWidget(colorConverter);layout->addWidget(colorConverterButton);setLayout(layout);}protected:ColorConverter *colorConverter{};// 重写关闭事件处理函数void closeEvent(QCloseEvent *event) override {if (this->isVisible()) {// 隐藏主窗口，而不是退出程序this->hide();event->ignore(); // 忽略关闭事件，防止程序退出}}void keyPressEvent(QKeyEvent *event) override {qDebug() << event->modifiers();if (event->modifiers() == Qt::ControlModifier && event->key() == Qt::Key_C) {colorConverter->stopColorCapture();// 在这里执行按下 Control + C 键的操作qDebug() << "Control + C pressed";} else {// 如果有其他键盘事件，交给基类处理QWidget::keyPressEvent(event);}}
public slots:void showClipboardManager() {new ClipboardManager(this);}void showJsonFormatter() {new JsonFormatter(this);}void showDateTimeTimestampConverter() {new DateTimeTimestampConverter(this);}void showNumberBaseConverter() {new NumberBaseConverter(this);}void showXmlFormatter() {new XmlFormatter(this);}void showBase64Converter() {new Base64Converter(this);}void showBase64ImageConverter() {new Base64ImageConverter(this);}void showColorConverter() {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();}}void showPanel() {this->show(); // 显示主窗口this->raise(); // 将窗口置于其他窗口上方}
};int main(int argc, char *argv[]) {QApplication a(argc, argv);MyMainWindow mainWindow;// 创建托盘图标auto* trayIcon = new QSystemTrayIcon(QIcon(":/res/icon/logo.png"), &mainWindow);trayIcon->setToolTip("天河工具箱");// 创建托盘菜单auto* trayMenu = new QMenu(&mainWindow);auto* showPanelAction = new QAction("显示面板", &mainWindow);QObject::connect(showPanelAction, &QAction::triggered, &mainWindow, &MyMainWindow::showPanel);trayMenu->addAction(showPanelAction);auto* quitAction = new QAction("退出", &mainWindow);QObject::connect(quitAction, &QAction::triggered, &a, &QApplication::quit);trayMenu->addAction(quitAction);trayIcon->setContextMenu(trayMenu);trayIcon->show();mainWindow.show();return QApplication::exec();
}#include "main.moc"