【Qt】消息对话框类

消息对话框类在前者消息对话框的基础之上完成的

参见：http://blog.csdn.net/ldan508/article/details/51921182

【效果如下】


     


【添加代码】

添加新的文件msgboxdlg类

//msgboxdlg.h

<span style="font-family:Microsoft YaHei;font-size:18px;">#ifndef MSGBOXDLG_H
#define MSGBOXDLG_H
#include<QLabel>
#include<QPushButton>
#include<QGridLayout>
#include<QDialog>

class MsgBoxDlg : public QDialog
{
Q_OBJECT
public:
MsgBoxDlg(QWidget* parent=0);
private slots:
void showQuestionMsg();
void showInformationMsg();
void showWarningMsg();
void showCriticalMsg();
void showAboutMsg();
void showAboutQtMsg();
private:
QLabel *label;
QPushButton *questionBtn;
QPushButton *informationBtn;
QPushButton *warningBtn;
QPushButton *criticalBtn;
QPushButton *aboutBtn;
QPushButton *aboutQtBtn;
QGridLayout *mainLayout;
};

#endif // MSGBOXDLG_H
</span>

//msgboxdlg.cpp

<span style="font-family:Microsoft YaHei;font-size:18px;">#include "msgboxdlg.h"

MsgBoxDlg::MsgBoxDlg(QWidget *parent) :
QDialog(parent)
{
setWindowTitle(tr("标注信息对话框的实例")); //设置对话框的标题
label = new QLabel;
label->setText(tr("请选择一种消息框"));

questionBtn = new QPushButton;
questionBtn->setText(tr("QusetionMsg"));

informationBtn = new QPushButton;
informationBtn->setText(tr("InformationMsg"));

warningBtn = new QPushButton;
warningBtn->setText(tr("WarningMsg"));

criticalBtn =new QPushButton;
criticalBtn->setText(tr("CriticalMsg"));

aboutBtn = new QPushButton;
aboutBtn->setText(tr("AboutMsg"));

aboutQtBtn =new QPushButton;
aboutQtBtn->setText(tr("AboutQtMsg"));

//布局
mainLayout =new QGridLayout(this);
mainLayout->addWidget(label,0,0,1,2);
mainLayout->addWidget(questionBtn,1,0);
mainLayout->addWidget(informationBtn,1,1);
mainLayout->addWidget(warningBtn,2,0);
mainLayout->addWidget(criticalBtn,2,1);
mainLayout->addWidget(aboutBtn,3,0);
mainLayout->addWidget(aboutQtBtn,3,1);

//事件关联
connect(questionBtn,SIGNAL(clicked(bool)),this,SLOT(showQuestionMsg()));
connect(informationBtn,SIGNAL(clicked(bool)),this,SLOT(showInformationMsg()));
connect(warningBtn,SIGNAL(clicked(bool)),this,SLOT(showWarningMsg()));\
connect(criticalBtn,SIGNAL(clicked(bool)),this,SLOT(showCriticalMsg()));
connect(aboutBtn,SIGNAL(clicked(bool)),this,SLOT(showAboutMsg()));
connect(aboutQtBtn,SIGNAL(clicked(bool)),this,SLOT(showAboutQtMsg()));

}

void MsgBoxDlg::showQuestionMsg()
{

}

void MsgBoxDlg::showInformationMsg()
{

}

void MsgBoxDlg::showWarningMsg()
{

}

void MsgBoxDlg::showCriticalMsg()
{

}

void MsgBoxDlg::showAboutMsg()
{

}

void MsgBoxDlg::showAboutQtMsg()
{

}
</span>

//dialog.h

<span style="font-family:Microsoft YaHei;font-size:18px;"> 添加头文件
#include "msgboxdlg.h"

添加private成员变量：
QPushButton *MsgBtn;

添加类函数：
MsgBoxDlg *msgDlg;

添加槽函数：
void showMsgDlg();

</span>

//dialog.cpp

<span style="font-family:Microsoft YaHei;font-size:18px;"> 构造函数中添加：
MsgBtn =new QPushButton;
MsgBtn->setText(tr("标准消息对话框实例"));
mainLayout->addWidget(MsgBtn,3,1);
connect(MsgBtn,SIGNAL(clicked(bool)),this,SLOT(showMsgDlg()));

槽函数的实现：
void Dialog::showMsgDlg()
{
msgDlg =new MsgBoxDlg();
msgDlg->show();
}</span>