#pragma once
//#pragma warning(disable: 26498 )
/*QT file*/
#include <QtWidgets/QMainWindow>
#include "ui_VTKReadJpg_InQT_Test.h"
#include <QFileDialog>
#include <QDir>
#include <qstring.h>
#include <qlineedit.h>
#include <QpushButton>
/*vtk File*/
#include <vtkRenderer.h>
#include <vtkRenderWindow.h>
#include <vtkImageViewer2.h>
#include <QVTKWidget.h>
#include <vtkBMPReader.h>
#include <vtkJPEGReader.h>
#include <vtkImageActor.h>
#include <vtkEventQtSlotConnect.h>
#include "vtkCommand.h"
#include <vtkOutputWindow.h>
#include "vtkSmartPointer.h"
//为了能够使用vtk添加代码
#include "vtkAutoInit.h"
VTK_MODULE_INIT(vtkRenderingOpenGL2); // VTK was built with vtkRenderingOpenGL2
VTK_MODULE_INIT(vtkInteractionStyle);
using namespace std;
class vtkImageViewer2;
class vtkRenderer;
class vtkEventQtSlotConnect;
class QVTKWidget;

class VTKReadJpg_InQT_Test : public QMainWindow
{
    Q_OBJECT

public:
    VTKReadJpg_InQT_Test(QWidget* parent = Q_NULLPTR);

private:
    Ui::VTKReadJpg_InQT_TestClass ui;
private slots:
    void onOpenSlot(void);
private:
    vtkSmartPointer<vtkImageViewer2> m_pImageViewer;
    vtkSmartPointer<vtkRenderer> m_pRenderer;
    //QVTKWidget m_qvtkWidget;
};

#include "VTKReadJpg_InQT_Test.h"

VTKReadJpg_InQT_Test::VTKReadJpg_InQT_Test(QWidget *parent)
    : QMainWindow(parent)
{
    ui.setupUi(this);
    m_pImageViewer = vtkSmartPointer<vtkImageViewer2>::New();
    m_pRenderer = vtkSmartPointer<vtkRenderer>::New();

    //设置qvtkWidget的渲染器
    ui.qvtkWidget->GetRenderWindow()->AddRenderer(m_pRenderer);
    //m_qvtkWidget.GetRenderWindow()->AddRenderer(m_pRenderer);
    //连接信号和槽
    //
    connect(ui.pushButton, SIGNAL(clicked(bool)), this, SLOT(onOpenSlot()));

}
void VTKReadJpg_InQT_Test::onOpenSlot(void)
{
    QString FileInstruction;
    FileInstruction = "Image Files(*.jpg *.jpeg);;All(*.*)";
    QDir FileDir;
    //QString fileName = QFileDialog::getOpenFileName(this, QString(tr("打开图像")), "", File);
    QString fileName = QFileDialog::getOpenFileName(this,
                                                   "please choose an image file",
                                                   "",
                                                   FileInstruction);
    
    if (fileName.isEmpty() == true)
    {
        cout << "error" << endl;
        return;
    }
    //显示路径
    QFileInfo OpenFileInfo;
    OpenFileInfo = QFileInfo(fileName);
    QString OpenFilePath = OpenFileInfo.filePath();
    ui.lineEdit->setText(OpenFilePath);
    // 支持带中文路径的读取
    QByteArray ba = fileName.toLocal8Bit();
    const char* fileName_str = ba.data();
    //使用vtkJPEGReader读取图像
    vtkSmartPointer<vtkJPEGReader>reader = vtkSmartPointer<vtkJPEGReader>::New();
    reader->SetFileName(fileName_str);
    //reader->SetFileName("D:\\Pictures\\1.jpg");
    reader->Update();
    //将reader 的输出作为 viewer的输入，并且设置Viewer与渲染器的关联
    //m_pImageViewer->SetInputData(reader->GetOutput());
    m_pImageViewer->SetInputData(reader->GetOutput());
    
    m_pImageViewer->UpdateDisplayExtent();
    m_pImageViewer->SetRenderWindow(ui.qvtkWidget->GetRenderWindow());
    m_pImageViewer->SetRenderer(m_pRenderer);
    m_pImageViewer->SetupInteractor(ui.qvtkWidget->GetRenderWindow()->GetInteractor());
    m_pImageViewer->SetSliceOrientationToXY();//默认就是这个方向
    m_pImageViewer->GetImageActor()->InterpolateOff();

    m_pRenderer->ResetCamera();
    m_pRenderer->DrawOn();
    ui.qvtkWidget->SetRenderWindow(m_pImageViewer->GetRenderWindow());
    ui.qvtkWidget->GetRenderWindow()->Render();
    

}

#include "VTKReadJpg_InQT_Test.h"
#include <QtWidgets/QApplication>

int main(int argc, char *argv[])
{
    vtkOutputWindow::SetGlobalWarningDisplay(0);
    QApplication a(argc, argv);
    VTKReadJpg_InQT_Test w;
    w.show();
    return a.exec();
}