Question

我有一个名为MainWindow的GUI，我在构造函数中渲染了一些东西。在这个构造函数之上，我声明了一个自定义类的交互器来实现OnRightButtonDown（）函数。在这个函数中，我想从我的MainWindow类中调用一个函数。

当我运行代码时出现错误：

＆＃34;没有合适的默认构造函数＆＃34;

发生

指的是这一行：

vtkStandardNewMacro(customMouseInteractorStyle);

如何更改代码以启用带参数的构造函数？

    class customMouseInteractorStyle : public vtkInteractorStyleTrackballCamera
    {
    public:
        static customMouseInteractorStyle* New();
        vtkTypeMacro(customMouseInteractorStyle,   vtkInteractorStyleTrackballCamera);
        MainWindow *mainWin;

        customMouseInteractorStyle(MainWindow *ptr) : mainWin(ptr)
        {

        }

        virtual void OnRightButtonDown()
        {
            mainWin->function();
            vtkInteractorStyleTrackballCamera::OnRightButtonDown();
        }
    };
    vtkStandardNewMacro(customMouseInteractorStyle);

Test1::Test1(QWidget *parent)
    : QMainWindow(parent)
{
       //Rendering
       ....
       //

    vtkSmartPointer<customMouseInteractorStyle> style =   //My custom class!!!
    vtkSmartPointer<customMouseInteractorStyle>::New();
    renderWindowInteractor->SetInteractorStyle(style);

    renderWindow->Render();
    renderWindowInteractor->SetRenderWindow(renderWindow);
    renderWindowInteractor->Initialize();

}

void MainWindow::function()
{
}

Answer 1

 class customMouseInteractorStyle : public vtkInteractorStyleTrackballCamera
    {
    public:
        static customMouseInteractorStyle* New();
        vtkTypeMacro(customMouseInteractorStyle,   vtkInteractorStyleTrackballCamera);
        MainWindow *mainWin;

        customMouseInteractorStyle()
        {

        }

        void  function(MainWindow *ptr)
        {
           mainWin = ptr;
        }

        virtual void OnRightButtonDown()
        {
            mainWin->function();
            vtkInteractorStyleTrackballCamera::OnRightButtonDown();
        }
    };
    vtkStandardNewMacro(customMouseInteractorStyle);

Test1::Test1(QWidget *parent)
    : QMainWindow(parent)
{
       //Rendering
       ....
       //

    vtkSmartPointer<customMouseInteractorStyle> style =   //My custom class!!!
    vtkSmartPointer<customMouseInteractorStyle>::New();
    renderWindowInteractor->SetInteractorStyle(style);
    style->function(this);

    renderWindow->Render();
    renderWindowInteractor->SetRenderWindow(renderWindow);
    renderWindowInteractor->Initialize();

}

void MainWindow::function()
{
}

Qt / VTK：没有合适的默认构造函数（自定义交互器）

1 个答案: