//////////////////////////////////////////////////////
//! rcsid="$Id: ex3DCanvas.cc,v 1.11 2000/12/13 15:45:51 ees1cg Exp $"

#include "amma/GUI/Window.hh"
#include "amma/GUI/Button.hh"
#include "amma/GUI/Canvas.hh"
#include "amma/GUI/Manager.hh"
#include "amma/GUI/Slider.hh"
#include "amma/GUI/LBox.hh"
#include "amma/GUI/3D/3DCanvas.hh"
#include "amma/GUI/3D/ViewPoint.hh"
#include "amma/GUI/3D/Cube.hh"
#include "amma/GUI/3D/Lines.hh"
#include "amma/GUI/3D/Util.hh"
#include "amma/GUI/3D/Polops.hh"
#include "amma/GUI/3D/Light.hh"
#include "amma/Option.hh"

#include "amma/GUI/Bitmap.hh"
#include <gtk/gtk.h>
#include <gdk/gdk.h>

void DrawFunc()
{
  Vector3dC diag(1,1,1);
  Vector3dC d1 = diag/2;
  Vector3dC d2 = -diag/2;

  glBegin(GL_QUAD_STRIP);
  {
    glNormal3d(1,0,0);
	       
    glVertex3d(d1.X(),d1.Y(),d1.Y());
    glVertex3d(d1.X(),d2.Y(),d1.Y());
    
    glVertex3d(d1.X(),d1.Y(),d2.Y());
    glVertex3d(d1.X(),d2.Y(),d2.Y());
  }
  glEnd();

  glBegin(GL_QUAD_STRIP);
  {
    glNormal3d(-1,0,0);
    
    glVertex3d(d2.X(),d1.Y(),d1.Y());
    glVertex3d(d2.X(),d2.Y(),d1.Y());
    
    glVertex3d(d2.X(),d1.Y(),d2.Y());
    glVertex3d(d2.X(),d2.Y(),d2.Y());
  }
  glEnd();  
}

void SetupGL()
{
  //glCullFace(

}

void pressFunc(GUIMouseEventC &me) {
  cerr << "Press " << me.X() << " " << me.Y() << "\n";
}

void releaseFunc(GUIMouseEventC &me) {
  cerr << "Release " << me.X() << " " << me.Y() << "\n";
}

void moveFunc(GUIMouseEventC &me) {
  cerr << "Move " << me.X() << " " << me.Y() << "\n";
}


int main(int nargs,char *args[]) 
{
  GUIManager.Init(nargs,args);
  
  OptionC opts(nargs,args); // Make sure help option is detected.
  BooleanT doMotion = opts.Boolean("m",false,"Detect motion events.");
  opts.Check();
  
  GUIWindowC win(100,100,"Hello");
  using namespace StdGUI;
  Canvas3DC area(400,400);
  
  StdDP::Connect(area.Signal("button_press_event"),&pressFunc);
  StdDP::Connect(area.Signal("button_release_event"),&releaseFunc);
  if(doMotion)
    StdDP::Connect(area.Signal("motion_notify_event"),&moveFunc);

  
  win.Add(VBox(area+
	       GUIButtonC("Hello1")+ 
	       GUIButtonC("Hello2")
	       )
	  );
  win.Show();
  cerr << "Starting gui. \n";

  
#if 1
  GUIBitmapC otherbm(400,400);
  otherbm.Clear();
  GdkGC *agc = gdk_gc_new(&otherbm.Bitmap());
  GdkColor col;
  col.pixel = 0;
  col.red = 0xffff;
  col.green = 0xffff;
  col.blue = 0xffff;
  gdk_gc_set_foreground(agc,&col);
  gdk_draw_rectangle(&otherbm.Bitmap(),agc,1,10,10,300,300);
  win.ShapeCombineMask(otherbm.Bitmap());
#endif  
  GUIManager.Execute();
  
  area.Render(SetupGL);
  
#if 1
  area.Light(RGBPointC(0.8,0.8,0.8),Point3dC(3,3,10));
  //area.SwapBuffers();
  area.ViewPoint(90,Point3dC(0,0,3)); // Setup view point.
  DCube3DC acube(Vector3dC(1,1,1),RGBPointC(0,1,0));
  DObject3DC object ;
#if 0
  area.Transform(-90,  // Angle.
  		 Vector3dC(0,1,0), // Axis of rotation
		 acube); // Object to draw.
  area.SwapBuffers();
  object = acube;
#else
  PolopsC pol("/vol/vssp/data/polymesh/humanheads/ukvrsighead.tri");
  DPolops3DC polgl(pol,FALSE);
  object = polgl;
#endif
  object.EnableDisplayList();

#if 1
  for(RealT i = 0;i < 1000;i++) {
    // Draw rotated cube
    area.Transform(i * 5,  // Angle.
		   Vector3dC(0,1,0), // Axis of rotation
		   object); // Object to draw.
    // area.Render(DrawFunc);
    // area.Put(DLine3DC(Point3dC(0,0,0),Point3dC(0,1,0))); // Draw line.
    area.SwapBuffers();
  }
#else
  area.SwapBuffers();
  // Draw rotated cube
  area.Transform(0,  // Angle.
		 Vector3dC(0,1,0), // Axis of rotation
		 object); // Object to draw.
  // area.Render(DrawFunc);
  // area.Put(DLine3DC(Point3dC(0,0,0),Point3dC(0,1,0))); // Draw line.
  area.SwapBuffers();
#endif

#endif  
  cerr << "Execute done, waiting... \n";
  //GUIManager.Start();
  GUIManager.Wait();
}