#pragma once

#include <Aspect_Handle.hxx>
#include <Standard_Handle.hxx>

class AIS_InteractiveContext;
class AIS_InteractiveObject;
class V3d_View;

//! Creates main visu elements.
class Viewer
{
public:
	//! Constructor.
	Viewer();

	//! Creates context, viewer and view. View here is not fully filled.
	//! It requires posponed initView with window id.
	void init();

	//! Fill view with UI window identifier.
	//! @param windowHandle
	void initView(Aspect_Handle windowHandle);

	//! Returns current context.
	const Handle(AIS_InteractiveContext)& context() const;

	//! Redraw active view in viewer.
	void redrawView();

	//! Force the active view to react on window resize.
	void resizeView();

	//! Fit all scene.
	void fitAll();

	void updateTrihedron();
	void showTrihedron(Standard_Boolean bShow);
	Standard_Boolean isTrihedronShowed() { return m_bShowTrihedron; }

	//! Visualizes presentation in context.
	//! @param presentation  object to display
	//! @param displayMode   presentation display mode
	//! @param selectionMode selection mode, if -1 do not activate in selection
	void displayPresentation(const Handle(AIS_InteractiveObject)& presentation,
		const int                            displayMode,
		const int                            selectionMode = -1);

	//! Returns an active/defined view of the context. Gets the context viewer, find the first active view.
	//! If no active view, returns the first defined viewer.
	//! @param context visu context
	static Handle(V3d_View) activeView(const Handle(AIS_InteractiveContext)& context);

private:
	Handle(AIS_InteractiveContext) m_context; //!< visu context

	Standard_Boolean m_bShowTrihedron;
};