完善文本编辑器

#include "second.h"
#include "ui_second.h"second::second(QWidget *parent) :QWidget(parent),ui(new Ui::second)
{ui->setupUi(this);this->setWindowTitle("聊天室界面");//设置标题this->setWindowIcon(QIcon("C:\\Users\\86150\\Desktop\\icon\\1\\denglu_1.png"));//设置图标//创建logo
}
void second::jump_slot()
{this->show();
}
second::~second()
{delete ui;
}void second::on_pushButton_clicked()
{bool ok;QFont f=QFontDialog::getFont(&ok,QFont("宋体",10,2,false),this);if(ok){ui->textEdit->setCurrentFont(f);}else {QMessageBox::information(this,"错误","没有识别到你要的字体");}
}void second::on_pushButton_2_clicked()
{QColor c=QColorDialog::getColor(Qt::black,this,"字体颜色");if(c.isValid()){ui->textEdit->setTextColor(c);}else {QMessageBox::information(this,"错误","设置颜色失败");}
}void second::on_pushButton_3_clicked()
{QString path=QFileDialog::getOpenFileName(this,"打开文件","./","所有文件(*.*);;文本文件(*.txt);;");QFile file(path);if(!file.exists()){QMessageBox::information(this,"错误信息","不存在");return;}if(!file.open(QIODevice::ReadWrite)){QMessageBox::information(this,"错误信息","读写错误");return;}QByteArray msg=file.readAll();file.close();ui->textEdit->setText(QString::fromLocal8Bit(msg));}void second::on_pushButton_4_clicked()
{QString path=QFileDialog::getSaveFileName(this,"保存文件","./","所有文件(*.*);;文本文件(*.txt);;");QFile file(path);if(!file.open(QIODevice::ReadWrite)){QMessageBox::information(this,"错误信息","不存在");return;}QString msg=ui->textEdit->toPlainText();file.write(msg.toLocal8Bit());file.close();
}

运行结果