/***********************************************************************
 
     FONCTION :
     ----------
        Classe V3d_Viewer :
 
     HISTORIQUE DES MODIFICATIONS   :
     --------------------------------
      00-09-92 : GG  ; Creation.
      15-11-97 : FMN ; Ajout texture mapping
      02-02-98 : FMN ; Mise a niveau WNT
      23-02-98 : FMN ; Remplacement PI par Standard_PI
      16-07-98 : CAL ; S3892. Ajout grilles 3d.

************************************************************************/

#define GER61351	//GG_15/12/99 Adds SetDefaultBackgroundColor()
//				      and DefaultBackgroundColor() methods

#define IMP240100	//GG 
//			Initalize grid echo fields

/*----------------------------------------------------------------------*/
/*
 * Includes
 */

#include <V3d.hxx>
#include <Visual3d_View.hxx>
#include <Visual3d_Light.hxx>
#include <V3d_Viewer.ixx>
#include <V3d_View.hxx>
#include <Viewer_BadValue.hxx>
#include <V3d_OrthographicView.hxx>
#include <V3d_PerspectiveView.hxx>
#ifdef WNT
#include <WNT_GraphicDevice.hxx>
#endif

/*----------------------------------------------------------------------*/

//-Constructor:
V3d_Viewer::V3d_Viewer(const Handle(Aspect_GraphicDevice)& Device , const Standard_ExtString aName, const Standard_CString aDomain,const Standard_Real ViewSize , const V3d_TypeOfOrientation ViewProj , const Quantity_NameOfColor ViewBackground , const V3d_TypeOfVisualization Visualization , const V3d_TypeOfShadingModel ShadingModel , const V3d_TypeOfUpdate UpdateMode, const Standard_Boolean ComputedMode , const Standard_Boolean DefaultComputedMode , const V3d_TypeOfSurfaceDetail SurfaceDetail )  
:Viewer_Viewer(Device,aName,aDomain,-1),
MyDefinedViews(),
MyActiveViews(),
MyDefinedLights(),
MyActiveLights(),
MyDefinedPlanes(),
myActiveViewsIterator(),
myDefinedViewsIterator(),
myActiveLightsIterator(),
myDefinedLightsIterator(),
myDefinedPlanesIterator(),
myComputedMode(ComputedMode),
myDefaultComputedMode(DefaultComputedMode),
myPrivilegedPlane(gp_Ax3(gp_Pnt(0.,0.,0),gp_Dir(0.,0.,1.),gp_Dir(1.,0.,0.))),
myDisplayPlane(Standard_False),
myDisplayPlaneLength(ViewSize)
#ifdef IMP240100
,myGridEcho(Standard_True),myGridEchoStructure(),myGridEchoGroup()
#endif 
{

  MyViewer = new Visual3d_ViewManager(Device) ;
  // san (16/09/2010): It has been decided to turn depth test ON
  // by default, as this is important for new font rendering
  // (without it, there are numerous texture rendering artefacts)
  MyViewer->SetZBufferAuto (Standard_False);
  SetUpdateMode( UpdateMode ) ;
  SetDefaultViewSize(ViewSize) ;
  SetDefaultViewProj(ViewProj) ;
  SetDefaultBackgroundColor(ViewBackground) ;
  SetDefaultVisualization(Visualization) ;
  SetDefaultShadingModel(ShadingModel) ;
  SetDefaultSurfaceDetail(SurfaceDetail) ; 
  SetDefaultAngle(Standard_PI/2.);
  SetDefaultTypeOfView(V3d_ORTHOGRAPHIC);

  Quantity_Color Color1 (Quantity_NOC_GRAY50);
  Quantity_Color Color2 (Quantity_NOC_GRAY70);
//  Quantity_Color White (Quantity_NOC_WHITE);
  myRGrid = new V3d_RectangularGrid(this,Color1,Color2);
  myCGrid = new V3d_CircularGrid(this,Color1,Color2);
  myGridType = Aspect_GT_Rectangular;
}

//-Methods, in order


Handle(V3d_View) V3d_Viewer::CreateView () {
  if (MyDefaultTypeOfView == V3d_ORTHOGRAPHIC) 
    return new V3d_OrthographicView(this);
  else
    return new V3d_PerspectiveView(this);
}

void V3d_Viewer::SetViewOn( ) {

  for (InitDefinedViews();MoreDefinedViews();NextDefinedViews()){
    SetViewOn(ActiveView());};
}

Handle(V3d_OrthographicView) V3d_Viewer::DefaultOrthographicView() {

  return MyDefaultOrthographicView;
}

Handle(V3d_PerspectiveView) V3d_Viewer::DefaultPerspectiveView () {

  return MyDefaultPerspectiveView;
}

void V3d_Viewer::SetViewOff( ) {

  for (InitDefinedViews();MoreDefinedViews();NextDefinedViews()){
    SetViewOff(ActiveView());};
}

void V3d_Viewer::SetViewOn( const Handle(V3d_View)& TheView ) {

  Handle(Visual3d_View) MyView = TheView->View() ;
  if( MyView->IsDefined() && !IsActive(TheView)) {
    MyActiveViews.Append(TheView) ;
    MyView->Activate();
    for (InitActiveLights();MoreActiveLights();NextActiveLights()){
      TheView->SetLightOn(ActiveLight());}
    // Grid
    TheView->SetGrid (myPrivilegedPlane, Grid ());
    TheView->SetGridActivity (Grid ()->IsActive ());
    // Update
    MyView->Redraw() ;
  }
}

void V3d_Viewer::SetViewOff( const Handle(V3d_View)& TheView ) {

  Handle(Visual3d_View) MyView =TheView->View(); 
  if( MyView->IsDefined() && IsActive(TheView) ) {
    MyActiveViews.Remove(TheView);
    MyView->Deactivate() ;
  }
}

Standard_Boolean V3d_Viewer::ComputedMode() const {
  return myComputedMode;
}

Standard_Boolean V3d_Viewer::DefaultComputedMode() const {
  return myDefaultComputedMode;
}

void V3d_Viewer::Update() {

  MyViewer->Update();
}

void V3d_Viewer::Redraw()const  {

  MyViewer->Redraw();
}

void V3d_Viewer::Remove() {

  MyViewer->Remove();
}

void V3d_Viewer::Erase() const {
  
  MyViewer->Erase();
}

void V3d_Viewer::UnHighlight() const {

  //FMN MyViewer->UnHighlight();
}

void V3d_Viewer::SetDefaultBackgroundColor(const Quantity_TypeOfColor Type, const Standard_Real v1, const Standard_Real v2, const Standard_Real v3) {
  Standard_Real V1 = v1 ;
  Standard_Real V2 = v2 ;
  Standard_Real V3 = v3 ;

  if( V1 < 0. ) V1 = 0. ; else if( V1 > 1. ) V1 = 1. ;
  if( V2 < 0. ) V2 = 0. ; else if( V2 > 1. ) V2 = 1. ;
  if( V3 < 0. ) V3 = 0. ; else if( V3 > 1. ) V3 = 1. ;

  Quantity_Color C(V1,V2,V3,Type) ;
#ifdef GER61351
  SetDefaultBackgroundColor(C);
#else
  MyBackground.SetColor(C) ;
#endif
}

void V3d_Viewer::SetDefaultBackgroundColor(const Quantity_NameOfColor Name) {

  Quantity_Color C(Name) ;
#ifdef GER61351
  SetDefaultBackgroundColor(C);
#else
  MyBackground.SetColor(C) ;
#endif
}

#ifdef GER61351
void V3d_Viewer::SetDefaultBackgroundColor(const Quantity_Color &Color) {

  MyBackground.SetColor(Color) ;
}
#endif

void V3d_Viewer::SetDefaultBgGradientColors( const Quantity_NameOfColor Name1,
                                             const Quantity_NameOfColor Name2,
                                             const Aspect_GradientFillMethod FillStyle){

  Quantity_Color C1(Name1) ;
  Quantity_Color C2(Name2) ;
  MyGradientBackground.SetColors(C1, C2, FillStyle);

} 

void V3d_Viewer::SetDefaultBgGradientColors( const Quantity_Color& Color1,
                                             const Quantity_Color& Color2,
                                             const Aspect_GradientFillMethod FillStyle ){

  MyGradientBackground.SetColors(Color1, Color2, FillStyle);

}  


void V3d_Viewer::SetDefaultViewSize(const Standard_Real Size) {

  Viewer_BadValue_Raise_if( Size <= 0. ,"V3d_Viewer::SetDefaultViewSize, bad size");
  MyViewSize = Size ;
}

void V3d_Viewer::SetDefaultViewProj(const V3d_TypeOfOrientation Orientation) {

  MyViewProj = Orientation ;
}

void V3d_Viewer::SetDefaultVisualization(const V3d_TypeOfVisualization Type) {

  MyVisualization = Type ;
}
void V3d_Viewer::SetZBufferManagment(const Standard_Boolean Automatic) {
  MyViewer->SetZBufferAuto (Automatic);
}
Standard_Boolean V3d_Viewer::ZBufferManagment() const {
  return MyViewer->ZBufferAuto();
}

void V3d_Viewer::SetDefaultShadingModel(const V3d_TypeOfShadingModel Type) {

  MyShadingModel = Type ;
}

void V3d_Viewer::SetDefaultSurfaceDetail(const V3d_TypeOfSurfaceDetail Type) {

  MySurfaceDetail = Type ;
}

void V3d_Viewer::SetDefaultAngle(const Quantity_PlaneAngle Angle) {
  MyDefaultAngle = Angle;
}

void V3d_Viewer::SetDefaultTypeOfView(const V3d_TypeOfView Type) {
  MyDefaultTypeOfView = Type;}


void V3d_Viewer::SetUpdateMode(const V3d_TypeOfUpdate Mode) {
  
  MyViewer->SetUpdateMode((Aspect_TypeOfUpdate)Mode) ;
}

void V3d_Viewer::DefaultBackgroundColor(const Quantity_TypeOfColor Type,Standard_Real &V1,Standard_Real &V2,Standard_Real &V3) const {

#ifdef GER61351
  Quantity_Color C = DefaultBackgroundColor();
#else
  Quantity_Color C = MyBackground.Color() ;
#endif
  C.Values(V1,V2,V3,Type) ;
}

#ifdef GER61351
Quantity_Color V3d_Viewer::DefaultBackgroundColor() const {
  return MyBackground.Color() ;
}
#endif

void V3d_Viewer::DefaultBgGradientColors(Quantity_Color& Color1,Quantity_Color& Color2) const{   
  MyGradientBackground.Colors(Color1,Color2);     
}

Standard_Real V3d_Viewer::DefaultViewSize() const {
  return MyViewSize ;
}

V3d_TypeOfOrientation V3d_Viewer::DefaultViewProj() const {
  return MyViewProj ;
}

V3d_TypeOfVisualization V3d_Viewer::DefaultVisualization() const {
  return MyVisualization ;
}

V3d_TypeOfShadingModel V3d_Viewer::DefaultShadingModel() const {
  return MyShadingModel ;
}

V3d_TypeOfSurfaceDetail V3d_Viewer::DefaultSurfaceDetail() const {
  return MySurfaceDetail ;
}

Quantity_PlaneAngle V3d_Viewer::DefaultAngle() const {
  return MyDefaultAngle;
}

V3d_TypeOfUpdate V3d_Viewer::UpdateMode() const {

  V3d_TypeOfUpdate Mode = (V3d_TypeOfUpdate) MyViewer->UpdateMode() ;
  return Mode ;
}

Standard_Boolean V3d_Viewer::IfMoreViews() const {
  Standard_Boolean TheStatus = Standard_False ;

#ifdef NEW
  if( MyActiveViews->Length() < Visual3d_View::Limit() )
#endif /*NEW*/
    TheStatus = Standard_True ;
  return TheStatus ;
}

Handle(Visual3d_ViewManager) V3d_Viewer::Viewer() const {
  return MyViewer ;
}

Aspect_Background V3d_Viewer::GetBackgroundColor() const {
  return MyBackground ;
}

Aspect_GradientBackground V3d_Viewer::GetGradientBackground() const {
  return MyGradientBackground;
}   

void V3d_Viewer::AddView( const Handle(V3d_View)& TheView ) {

  MyDefinedViews.Append(TheView);
  IncrCount();
}

void V3d_Viewer::DelView( const Handle(V3d_View)& TheView ) {

  MyActiveViews.Remove(TheView);
  MyDefinedViews.Remove(TheView);
}

void V3d_Viewer::AddPlane( const Handle(V3d_Plane)& ThePlane ) {

  MyDefinedPlanes.Append(ThePlane) ;
}

void V3d_Viewer::DelPlane( const Handle(V3d_Plane)& ThePlane ) {
  
  MyDefinedPlanes.Remove(ThePlane);
}