我需要实现一个搜索表单(我已经有了这个功能),但我不知道如何将 QlineEdit 和 QPushButton 添加到 QMessageBox 中(如果我可以这样说的话)。
最佳答案
您可以继承 QDialog 并将其用作消息框
搜索对话框.h:
#ifndef SEARCHDIALOG_H
#define SEARCHDIALOG_H
#include <QDialog>
#include <QLineEdit>
class SearchDialog : public QDialog
{
Q_OBJECT
public:
explicit SearchDialog(QWidget *parent = 0);
QString searchString() const;
private:
QLineEdit *m_lineEdit;
};
#endif // SEARCHDIALOG_H
搜索对话框.cpp
#include "searchdialog.h"
#include <QVBoxLayout>
#include <QPushButton>
#include <QDialogButtonBox>
SearchDialog::SearchDialog(QWidget *parent) :
QDialog(parent)
{
m_lineEdit = new QLineEdit(this);
QPushButton *searchButton = new QPushButton(tr("Search"));
searchButton->setDefault(true);
QPushButton *cancelButton = new QPushButton(tr("Cancel"));
QDialogButtonBox *buttonBox = new QDialogButtonBox(Qt::Horizontal);
buttonBox->addButton(searchButton, QDialogButtonBox::AcceptRole);
buttonBox->addButton(cancelButton, QDialogButtonBox::RejectRole);
connect(buttonBox, SIGNAL(accepted()), this, SLOT(accept()));
connect(buttonBox, SIGNAL(rejected()), this, SLOT(reject()));
QVBoxLayout *lt = new QVBoxLayout;
lt->addWidget(m_lineEdit);
lt->addWidget(buttonBox);
setLayout(lt);
}
QString SearchDialog::searchString() const
{
return m_lineEdit->text();
}
主要.cpp
#include <QtGui/QApplication>
#include <QtGui/QMessageBox>
#include <QLabel>
#include "searchdialog.h"
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
QLabel lbl;
SearchDialog *dialog = new SearchDialog(&lbl);
lbl.show();
QString searchString;
if (dialog->exec()) {
searchString = dialog->searchString();
lbl.setText(searchString);
}
return a.exec();
}
关于c++ - 如何在搜索表单的 QMessageBox 中包含 QLineEdit,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/9351407/