class-diagram.wsd

@startuml

class QQuickWindow{
    Provides the graphical scene
    management needed to interact
    with and display a scene of QQuickItems
    ==
    +QQuickWindow(QWindow*)
    +QQuickWindow(QQuickRenderControl*)
    +void setRenderTarget(QOpenGLFramebufferObject*)
    +void resetOpenGLState()
    --signals--
    void sceneGraphInitialized()
    void sceneGraphInvalidated()
}

class FboQuickWindow{
    +QImage grab() const
    +void resize(const QSize &newSize);
    --signals--
    void sceneRendered();
}
class FboQuickWindowPrivate{
    +void render()
    --slots--
    void sceneGraphInitialized()
    void sceneGraphInvalidated()
    void renderRequested()
    void sceneChanged()
}
class QOpenGLContext{
    Represents a native OpenGL context,
    enabling OpenGL rendering on a QSurface
    ==
    +bool makeCurrent(QSurface *surface)
    +void doneCurrent()
}
class QOffscreenSurface{
    Intended to be used with QOpenGLContext
    to allow rendering with OpenGL in an
    arbitrary thread without the need to
    create a QWindow
}
class QQuickRenderControl{
    Provides a mechanism for rendering the Qt
    Quick scenegraph onto an offscreen render
    target in a fully application-controlled
    manner
    ==
    +void initialize(QOpenGLContext *gl)
    +QImage grab()
    +void polishItems()
    +void sync()
    +void render()
    --signals--
    void renderRequested()
    void sceneChanged()
}
class QOpenGLFramebufferObject{
    Provides a rendering surface that can be 
    painted on with a QPainter with the help 
    of QOpenGLPaintDevice, or rendered to using
    native OpenGL calls
}
class QTimer{
}


class FboQuickView{
    +QQmlContext *rootContext() const
    +QList<QQmlError> errors() const
    +enum Status { Null, Ready, Loading, Error }
    +Status status() const
    -void resizeEvent(QResizeEvent *event)
    --signals--
    void statusChanged(Status status)
    --slots--
    void setSource(const QUrl &url)
}
class FboQuickViewPrivate{
    +void setSource(const QUrl &source)
    --slots--
    void componentStatusChanged(QQmlComponent::Status status)
}
class QQmlEngine{
    Each QML component is instantiated in a
    QQmlContext. QQmlContext's are essential
    for passing data to QML components. In QML,
    contexts are arranged hierarchically and
    this hierarchy is managed by the QQmlEngine
    ==
}
class QQmlComponent{
    Components are reusable, encapsulated QML
    types with well-defined interfaces
    ==
}
class QQuickItem{
    All visual items in Qt Quick inherit from
    QQuickItem. Although a QQuickItem instance
    has no visual appearance, it defines all the
    attributes that are common across visual items,
    such as x and y position, width and height,
    anchoring and key handling support
    ==
}

class PushQuickView{
    +bool isOpen() const
    +bool dithering() const
    +void setDithering(bool)
    --signals--
    void ditheringChanged()
}
class PushQuickViewPrivate{

}

QQuickWindow <|-- FboQuickWindow
FboQuickWindow <|-- FboQuickView
FboQuickView <|-- PushQuickView

FboQuickWindow *-- FboQuickWindowPrivate
FboQuickWindowPrivate *-- QOpenGLContext
FboQuickWindowPrivate *-- QOffscreenSurface
FboQuickWindowPrivate *-- QQuickRenderControl
FboQuickWindowPrivate *-- QOpenGLFramebufferObject
FboQuickWindowPrivate *-- QTimer

QQuickWindow o.. QQuickRenderControl
QQuickWindow o.. QOpenGLFramebufferObject
QQuickRenderControl o.. QOpenGLContext
QOpenGLContext o.. QOffscreenSurface

FboQuickView *-- FboQuickViewPrivate
FboQuickViewPrivate *-- QQmlEngine
FboQuickViewPrivate *-- QQmlComponent
FboQuickViewPrivate *-- QQuickItem
FboQuickViewPrivate o-- FboQuickView

PushQuickView *-- PushQuickViewPrivate

@enduml