哪里学网站建设与管理,做移动端电影网站,淘宝客网站备案,儿童编程上篇文章#xff0c;我们用 Qt5 实现了在小工具箱中添加了《颜色代码转换和屏幕颜色提取功能》功能。今天我们把屏幕颜色提取的功能再扩展一下#xff0c;让它可以点击复制吧。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#xff0c;先…上篇文章我们用 Qt5 实现了在小工具箱中添加了《颜色代码转换和屏幕颜色提取功能》功能。今天我们把屏幕颜色提取的功能再扩展一下让它可以点击复制吧。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 屏幕颜色提取功能概述 屏幕颜色提取功能 用户点击“开始提取屏幕颜色”按钮后程序会启动一个定时器。当定时器触发时程序会捕获鼠标当前位置的屏幕颜色。屏幕颜色以十六进制代码和颜色块的形式显示在界面上。新增用户可以点击屏幕颜色文本部分将颜色信息复制到剪贴板。 事件处理 使用事件过滤器捕获鼠标事件以开始和停止屏幕颜色捕获。
核心实现代码
// 这里就是点击文本区域的单机事件捕捉
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 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);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(#%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);}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);}
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;ClickableLabel *screenColorOutput;QLabel *screenColorBlock;QTimer *colorTimer;
};核心代码逻辑讲解
ClickableLabel 类
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();}}
};这个类继承自 QLabel它允许你创建一个可点击的标签。这里有几个关键点
ClickableLabel 类继承自 QLabel添加了点击信号 clicked。通过 mousePressEvent 函数捕获鼠标点击事件当左键点击时触发 clicked 信号。
这个类允许你创建能够发出点击信号的标签并在其他地方连接这个信号以执行相关操作。
ColorConverter 类
class ColorConverter : public QWidget {
Q_OBJECT
public:explicit ColorConverter(QWidget *parent nullptr) : QWidget(parent) {// 构造函数中的初始化// 创建控件和布局// ...// 添加按钮、输入框等控件// ...// 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);// 设置布局setLayout(layout);// 事件过滤器installEventFilter(this);}protected slots:// 各种转换和操作槽函数// ...protected:// 各种转换和操作的实现细节// ...// 以及事件过滤器的实现// ...private:// 控件指针// ...// 定时器指针// ...
};这个类是一个 QWidget 的子类用于创建一个包含颜色转换和屏幕颜色提取功能的窗口部件。这里的关键点包括
构造函数中进行了各种控件和布局的初始化和设置。protected slots 区域包含了颜色转换和操作的槽函数。protected 区域包含了这些功能的实现细节例如将 RGB 转换为十六进制、捕获屏幕颜色等。private 区域包含了指向各种控件和定时器的指针。
事件触发
connect(screenColorOutput, ClickableLabel::clicked, this, ColorConverter::copyColorToClipboard);这行代码的含义是
当 screenColorOutput一个 ClickableLabel 实例发出 clicked 信号时会触发 ColorConverter 类中的 copyColorToClipboard 函数。
这行代码将点击 screenColorOutput 标签所触发的信号与 copyColorToClipboard 槽函数连接起来实现了点击屏幕颜色输出区域后将颜色信息复制到剪贴板的功能。 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 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_castQApplication *(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 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);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(#%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);}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);}
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;ClickableLabel *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 200layout-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 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 *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, QOverloadint::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 findChildQPushButton *(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 findChildQPushButton *(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 findChildQPushButton *(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 findChildQPushButton *(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 findChildQPushButton *(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 findChildQPushButton *(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 findChildQPushButton *(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 findChildQPushButton *(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
想要了解这个小工具是如何发展到现在这个地步的话就看看往期文章吧~记得要多跑一跑代码。如果大家有什么想要的功能或者想问的问题的话就在评论区留言吧。Thanks♪(ω)
往期文章一览
C学习之路一什么是C如何循序渐进的学习C【纯干货】
C学习之路二C如何实现一个超简单的学生信息管理系统C示例和小项目实例
C学习之路三解析讲解超简单学生信息管理系统代码知识点 - 《根据实例学知识》
C学习之路四C 实现简单的待办事项列表命令行应用 - 示例代码拆分讲解
C学习之路五C 实现简单的文件管理系统命令行应用 - 示例代码拆分讲解
C学习之路六C 实现简单的工具箱系统命令行应用 - 示例代码拆分讲解
C学习之路七C 实现简单的Qt界面消息弹框、按钮点击事件监听- 示例代码拆分讲解
C学习之路八C 用Qt5实现一个工具箱增加一个粘贴板记录管理功能- 示例代码拆分讲解
C学习之路九C 用Qt5实现一个工具箱增加一个JSON数据格式化功能- 示例代码拆分讲解
C学习之路十C 用Qt5实现一个工具箱增加一个时间戳转换功能- 示例代码拆分讲解
C学习之路十一C 用Qt5实现一个工具箱增加一个进制转换器功能- 示例代码拆分讲解
C学习之路十二C 用Qt5实现一个工具箱增加一个XML文本格式化功能- 示例代码拆分讲解
C学习之路十三C 用Qt5实现一个工具箱增加一个Base64加解密功能- 示例代码拆分讲解
C学习之路十四C 用Qt5实现一个工具箱增加一个Base64图片编码预览功能- 示例代码拆分讲解
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 好了~ 本文就到这里了感谢您的阅读每天还有更多的实例学习文章等着你 。别忘了点赞、收藏~ Thanks♪(ω) 。
