河北建设行业信息网站,html网页表格代码,惠普网站建设的目标,上海最大的广告公司qt-C笔记之模拟实现一个linux终端窗口
code review! 文章目录 qt-C笔记之模拟实现一个linux终端窗口一.运行二.main.cpp三.不足#xff0c;待改进点 一.运行 二.main.cpp
代码
#include QApplication
#include QPlainTextEdit
#include QLineEdit…qt-C笔记之模拟实现一个linux终端窗口
code review! 文章目录 qt-C笔记之模拟实现一个linux终端窗口一.运行二.main.cpp三.不足待改进点 一.运行 二.main.cpp
代码
#include QApplication
#include QPlainTextEdit
#include QLineEdit
#include QVBoxLayout
#include QKeyEvent
#include QProcess
#include QScrollBar
#include QPushButtonclass TerminalWidget : public QWidget
{// Q_OBJECTpublic:TerminalWidget(QWidget *parent nullptr): QWidget(parent){// 创建终端输出控件outputTextEdit new QPlainTextEdit(this);outputTextEdit-setReadOnly(true);outputTextEdit-setStyleSheet(background-color: black; color: white;);// 创建用户输入控件inputLineEdit new QLineEdit(this);inputLineEdit-setStyleSheet(background-color: black; color: white; border: 1px solid white;);// 创建清空按钮clearButton new QPushButton(Clear Terminal, this);clearButton-setStyleSheet(color: white;); // 设置按钮上的文本颜色为白色connect(clearButton, QPushButton::clicked, this, TerminalWidget::clearTerminal);// 连接输入控件的信号到槽函数connect(inputLineEdit, QLineEdit::returnPressed, this, TerminalWidget::processCommand);// 创建垂直布局并添加控件QVBoxLayout *layout new QVBoxLayout(this);layout-addWidget(outputTextEdit);layout-addWidget(inputLineEdit);layout-addWidget(clearButton);// 设置布局setLayout(layout);// 设置窗口背景颜色setStyleSheet(background-color: black;);// 设置窗口标题setWindowTitle(Terminal);// 设置窗口大小resize(800, 600);// 设置焦点到输入框inputLineEdit-setFocus();}protected:void keyPressEvent(QKeyEvent *event) override{if (event-key() Qt::Key_Up){// 处理上箭头键浏览历史命令if (historyIndex 0 historyIndex commandHistory.size()){historyIndex--;inputLineEdit-setText(commandHistory.at(historyIndex));inputLineEdit-selectAll();}}else if (event-key() Qt::Key_Down){// 处理下箭头键浏览历史命令if (historyIndex 0 historyIndex commandHistory.size() - 1){historyIndex;inputLineEdit-setText(commandHistory.at(historyIndex));inputLineEdit-selectAll();}else if (historyIndex commandHistory.size() - 1){historyIndex commandHistory.size();inputLineEdit-clear();}}else{QWidget::keyPressEvent(event);}}private slots:void processCommand(){// 获取用户输入的命令QString command inputLineEdit-text();// 清空输入框inputLineEdit-clear();// 执行命令并将输出写入终端QProcess process;process.start(command);process.waitForFinished();QString output process.readAll();// 添加命令到历史记录commandHistory.append(command);historyIndex commandHistory.size();// 显示命令和输出outputTextEdit-appendPlainText($ command);outputTextEdit-appendPlainText(output);// 将滚动条滚动到底部以显示最新的输出outputTextEdit-verticalScrollBar()-setValue(outputTextEdit-verticalScrollBar()-maximum());// 设置焦点到输入框inputLineEdit-setFocus();}void clearTerminal(){// 清空输入框和输出窗口inputLineEdit-clear();outputTextEdit-clear();// 设置焦点到输入框inputLineEdit-setFocus();}private:QPlainTextEdit *outputTextEdit;QLineEdit *inputLineEdit;QPushButton *clearButton;QStringList commandHistory;int historyIndex 0;
};int main(int argc, char *argv[])
{QApplication app(argc, argv);TerminalWidget terminal;terminal.show();return app.exec();
}三.不足待改进点
1.无法呈现top这种命令的效果2.无法通过clear这样的命令清空终端显示只能按钮清空3.无法呈现ping www.baidu.com这种命令的效果与第1点相同 若有什么解决方案可私信我一起交流学习呀
