qfedu-qt-level/qtdemo02/mainwindow2.cpp

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2023-08-08 17:42:39 +08:00
#include "mainwindow2.h"
#include <QDebug>
#include <QFileDialog>
MainWindow2::MainWindow2(QWidget *parent) : QMainWindow(parent)
{
setWindowTitle("对话框学习中...");
setWindowIcon(QIcon(":/icon/open"));
resize(1200,960);
mEdit = new QTextEdit(this);
mEdit->close();
setCentralWidget(mEdit);
setCentralWidget(new QTextEdit(this));
QStatusBar *status_bar = new QStatusBar(this);
btn1 = new QPushButton("按钮1",status_bar);
btn2 = new QPushButton("按钮2",status_bar);
btn3 = new QPushButton("按钮3",status_bar);
btn4 = new QPushButton("定制MessageBox",status_bar);
btn5 = new QPushButton("button5",status_bar);
status_bar->addWidget(btn1);
status_bar->addWidget(btn2);
status_bar->addWidget(btn3);
status_bar->addWidget(btn4);
status_bar->addWidget(btn5);
setStatusBar(status_bar);
connect(btn1,&QPushButton::clicked,[&](){
QDialog dialog;
dialog.setWindowTitle(tr("自定义对话框 %1").arg(1));
// dialog.exec(); // 应用级别的模态对话框
dialog.show();
});
// connect(btn2,&QPushButton::clicked,[&](){
// QDialog *dialog = new QDialog(this);
// dialog->setWindowTitle(tr("自定义对话框 %1").arg(2));
// dialog->setAttribute(Qt::WA_DeleteOnClose); // 当关闭对话时,自动释放堆空间
// dialog->open(); // 窗口级别的模态对话框
// });
// connect(btn3,&QPushButton::clicked,[&](){
// QDialog *dialog = new QDialog(this);
// dialog->setWindowTitle(tr("自定义对话框 %1").arg(3));
// dialog->setAttribute(Qt::WA_DeleteOnClose); // 当关闭对话时,自动释放堆空间
// dialog->show(); // 窗口级别的非模态对话框
// });
connect(btn2,&QPushButton::clicked,[&](){
QMessageBox::warning(this,"警告","你的操作可能会失败...");
});
connect(btn3,&QPushButton::clicked,[&](){
// QMessageBox::StandardButton ret;
// ret = QMessageBox::question(this,"询问","选什么内容?");
// if(ret == QMessageBox::Yes)
// qDebug()<<"选了行";
// else
// qDebug()<<"没选行";
// QMessageBox::critical(this,"警告","太警告了");
QMessageBox::information(this,"info","no info",QMessageBox::NoButton,QMessageBox::Apply);
});
connect(btn4,&QPushButton::clicked,[&](){
QMessageBox *msgBox = new QMessageBox(this);
msgBox->setAttribute(Qt::WA_DeleteOnClose);
// msgBox->setIcon(QMessageBox::Critical);
// msgBox->setWindowTitle("自定义错误提示");
msgBox->setText("Error");
msgBox->setInformativeText("An error occurred while processing the request.");
msgBox->setStandardButtons(QMessageBox::Save|QMessageBox::Discard|QMessageBox::Cancel);
msgBox->setDefaultButton(QMessageBox::Cancel);
int ret = msgBox->exec(); // 会返回一个 int
switch (ret) {
case QMessageBox::Ok:
qDebug()<<"Ok";
break;
case QMessageBox::Yes:
qDebug()<<"Yes";
break;
case QMessageBox::No:
qDebug()<<"No";
break;
}
});
connect(btn5,&QPushButton::clicked,[&](){
// if(QMessageBox::Yes == QMessageBox::question(
// this,
// tr("Question"),
// tr("Are you OK?"),
// QMessageBox::Yes|QMessageBox::No,
// QMessageBox::Yes))
// {
// QMessageBox::information(this,tr("Hmmm..."),
// tr("I'm glad to hear that!"));
// }
// else{
// QMessageBox::information(this,
// tr("Hmmm..."),
// tr("I'm sorry!"));
// }
QMessageBox msgBox;
});
}