QT MDI多文档打开图像显示

想做一个图像的批处理工具，要打开多张图像，那么简单地写了一下。

MainWindow，打开对话框，选择多张图像，然后打开，在midArea中进行显示。关于MidArea的一些参考文档：

https://blog.****.net/rgbmarco/article/details/72902538

https://blog.****.net/zhyh1435589631/article/details/45587115

好了直接上代码：

h文件：

#ifndef MULTIAREAWINDOW_H

#define MULTIAREAWINDOW_H

#include <QMainWindow>

#include <QMdiArea>

namespace Ui {

class MultiAreaWindow;

class MultiAreaWindow : public QMainWindow

    Q_OBJECT

public:

    explicit MultiAreaWindow(QWidget *parent = 0);

    ~MultiAreaWindow();

private slots:

    void on_actionOpen_triggered();

private:

    void start();

    Ui::MultiAreaWindow *ui;

    QMdiArea *ma;

};

#endif // MULTIAREAWINDOW_H

cpp文件：

#include "multiareawindow.h"

#include "ui_multiareawindow.h"

#include<QString>

#include<QFileDialog>

#include<QStringList>

#include<QGraphicsScene>

#include<QMdiSubWindow>

#include<QGraphicsView>

MultiAreaWindow::MultiAreaWindow(QWidget *parent) :

    QMainWindow(parent),

    ui(new Ui::MultiAreaWindow)

    ui->setupUi(this);

    start();

void MultiAreaWindow::start()

    ma = new QMdiArea;

    this->setCentralWidget(ma);

MultiAreaWindow::~MultiAreaWindow()

    delete ui;

void MultiAreaWindow::on_actionOpen_triggered()

    QStringList QStrIMGfileName = QFileDialog::getOpenFileNames(

                    this, "open image file",

                    ".",

                    "Image files (*.bmp *.jpg *.pbm *.pgm *.png *.ppm *.xbm *.xpm);;All files (*.*)");

    if(!QStrIMGfileName.empty())

        for(int i=0;i<QStrIMGfileName.size();i++)

            QString FilenameI =QStrIMGfileName[i];

            if(FilenameI.isEmpty())

                continue;

            QPixmap pixmap(FilenameI);

            QGraphicsScene* m_MainScene = new QGraphicsScene;

            m_MainScene->addPixmap(pixmap);

            QGraphicsView * myView = new QGraphicsView();

            myView->setScene(m_MainScene);

            QMdiSubWindow *child = ma->addSubWindow(myView);

            child->resize(300,300);

            child->show();

最后放一个效果：

QT MDI多文档打开图像显示