网站建设与发布,广州市数商云网络科技有限公司,网站建设有什么职位,企业做网站哪家好提示#xff1a;本文为学习记录#xff0c;若有错误#xff0c;请联系作者#xff0c;谦虚受教。 文章目录 前言一、头文件二、cpp文件三、使用流程如图所示 总结 前言
Constant dropping wears the stone. 一、头文件
#ifndef TERMINALWIDGET_H
#define TERMINALWIDGET_… 提示本文为学习记录若有错误请联系作者谦虚受教。 文章目录 前言一、头文件二、cpp文件三、使用流程如图所示 总结 前言
Constant dropping wears the stone. 一、头文件
#ifndef TERMINALWIDGET_H
#define TERMINALWIDGET_H#include QTextEdit
#include QKeyEvent
#include QFont
#include QProcess
#include QByteArray
#include QLabel
#include QHBoxLayout
#include QVBoxLayout
#include QTextLayout
#include QTextCursor
#include QTextBlock
#include QTextCodec
#include assert.hclass TerminalWidget: public QTextEdit
{Q_OBJECT
public:TerminalWidget();protected:void keyPressEvent(QKeyEvent *e);private:// 字体QFont font;// 命令行终端进程QProcess * proc;// 光标位置long long lastPosition 0;// 上一次的输入内容QByteArray lastInput;public slots:/*** brief readyReadStandardOutputSlot 标准输出*/void readyReadStandardOutputSlot();/*** brief readyReadStandardErrorSlot 错误输出*/void readyReadStandardErrorSlot();
};#endif // TERMINALWIDGET_H二、cpp文件
#include terminalwidget.h
#include QDebugTerminalWidget::TerminalWidget()
{setStyleSheet(background-color:rgb(0,0,0); color:rgb(255,255,255); border:0px;);setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);resize(1000,700);setWindowTitle(命令行提示符);font.setFamily(Times New Roman);font.setPixelSize(14);setFont(font);proc new QProcess();connect(proc,SIGNAL(readyReadStandardOutput()),this,SLOT(readyReadStandardOutputSlot()));connect(proc,SIGNAL(readyReadStandardError()),this,SLOT(readyReadStandardErrorSlot()));#ifdef Q_OS_WINproc-start(cmd);
#elif Q_OS_LINUXproc-start(bash);
#endifQTextCursor editCursor textCursor();QTextBlockFormat textBlockFormat;textBlockFormat.setLineHeight(20, QTextBlockFormat::FixedHeight);editCursor.setBlockFormat(textBlockFormat);setTextCursor(editCursor);
}void TerminalWidget::keyPressEvent(QKeyEvent *e)
{QTextCursor editCursor textCursor();// Qt::Key_Enter 是小键盘数字键盘的 Enter对应的虚拟键码为0x01000005// Qt::Key_Return 是大键盘区的 Enter对应的虚拟键码为0x01000004if(e-key() Qt::Key_Return || e-key() Qt::Key_Enter){e-ignore();editCursor.setPosition(lastPosition, QTextCursor::MoveAnchor);editCursor.movePosition(QTextCursor::End, QTextCursor::KeepAnchor);QString string editCursor.selectedText();editCursor.clearSelection();
#ifdef Q_OS_WINlastInput string.toLocal8Bit() \r \n;
#elif Q_OS_LINUXlastInput string.toLocal8Bit() \n;
#endifproc-write(lastInput);return;}else if(e-key() Qt::Key_Backspace editCursor.position() lastPosition)return;else if(e-key() Qt::Key_Delete editCursor.position() lastPosition)return;elsereturn QTextEdit::keyPressEvent(e);
}void TerminalWidget::readyReadStandardOutputSlot()
{QByteArray ba proc-readAllStandardOutput();QTextCodec * textCodec QTextCodec::codecForName(System);// assert 断言如果 textCodec 为空则编译报错assert(textCodec ! nullptr);QString output textCodec-toUnicode(ba);if (output.length() 0 output ! QString::fromLocal8Bit(lastInput)){setTextColor(Qt::white);append(output.trimmed());moveCursor(QTextCursor::End);lastPosition textCursor().position();}
}void TerminalWidget::readyReadStandardErrorSlot()
{QByteArray ba proc-readAllStandardError();QTextCodec* textCodec QTextCodec::codecForName(System);// assert 断言如果 textCodec 为空则编译报错assert(textCodec ! nullptr);QString output textCodec-toUnicode(ba);if (output.length() 0 output ! QString::fromLocal8Bit(lastInput)){setTextColor(Qt::red);append(output.trimmed());moveCursor(QTextCursor::End);lastPosition textCursor().position();}
}三、使用流程
主要使用process来命令行操作
代码如下示例
int main(int argc,char *argv[])
{
QAPPlication a(argc,argv);
TerminalWidget w;
w.show();
return a,exec();
}如图所示 总结
善于总结多进一步。
