OZ++ Sample: PyramidWithColorEyeLightPositioner |
/******************************************************************************
*
* Copyright (c) 2016 Antillia.com TOSHIYUKI ARAI. ALL RIGHTS RESERVED.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
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*
* SphereWithColorEyeLightPositioner.cpp
*
*****************************************************************************/
#include <oz++/motif/ColorEyeLightPositioner.h>
#include <oz++/opengl/OpenGLMainView.h>
#include <oz++/opengl/OpenGLForm.h>
#include <oz++/opengl/OpenGLView.h>
#include <oz++/opengl/OpenGLGC.h>
#include <oz++/opengl/OpenGLLight.h>
#include <oz++/opengl/OpenGLMaterial.h>
#include <oz++/opengl/OpenGLSphere.h>
#include <oz++/opengl/Normal3.h>
#include <oz++/opengl/FaceIndices.h>
#include <oz++/opengl/OpenGLClientState.h>
#include <oz++/opengl/OpenGLTriangleSurfaces.h>
namespace OZ {
class MainView :public OpenGLMainView {
private:
//Inner class start
class SimpleView: public OpenGLView {
private:
OpenGLGC gc;
SmartPtr<OpenGLTriangleSurfaces> surfaces;
Normal3* normals; //Shallow copy
size_t numNormals;
ColorEyeLightPositioner* positioner;//Shallow copy
public:
virtual void display()
{
static Vertex<3> vertices[] = {
{ -1.0, -1.0, 1.0},
{ 1.0, -1.0, 1.0},
{ 1.0, -1.0, -1.0},
{ -1.0, -1.0, -1.0},
{ 0.0, 1.0, 0.0},
};
static FaceIndices<3> indices[] = {
{0, 1, 4}, //Triangle: face1
{1, 2, 4}, //Triangle: face2
{2, 3, 4}, //Triangle: face3
{3, 0, 4}, //Triangle] face4
};
if (surfaces == NULL) {
surfaces = new OpenGLTriangleSurfaces(vertices, SizeOf(vertices), indices, SizeOf(indices));
normals = surfaces->calculateSurfaceNormals(numNormals);
//surfaces->displayNormals();
}
if (normals && positioner) {
gc.frustum(1 , -1 , -1 , 1 , 1 , 10);
gc.clear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
gc.loadIdentity();
gc.matrixMode(GL_MODELVIEW);
gc.clearColor(0.0, 1.0, 1.0, 1.0);
gc.translate(0.0f,0.0f,-1.0f);
float eyeX, eyeY, eyeZ;
positioner->getEyePosition(eyeX, eyeY, eyeZ);
gc.lookAt(eyeX, eyeY, eyeZ, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0);
gc.rotate(0.0, 0.0, 1.0, 0.0);
try {
gc.enable(GL_LIGHTING);
OpenGLLight light(GL_LIGHT0);
float lightX, lightY, lightZ;
positioner->getLightPosition(lightX, lightY, lightZ);
light.position(lightX, lightY, lightZ, 0.0);
OpenGLMaterial material(GL_FRONT);
float r, g, b;
positioner->getColorPosition(r, g, b);
material.diffuse (r, g, b, 0.0f);
material.specular(1.0f, 1.0f, 1.0f, 0.0f);
material.shininess(100.0f);
gc.frontFace(GL_CCW);
gc.enable(GL_CULL_FACE);
gc.cullFace(GL_BACK);
gc.enable(GL_NORMALIZE);
for (int i = 0; i< SizeOf(indices); i++) {
gc.begin(GL_TRIANGLES);
FaceIndices<3> tri = indices[i];
gc.draw( normals[i],
vertices[ tri.index[0] ],
vertices[ tri.index[1] ],
vertices[ tri.index[2] ]);
gc.flush();
gc.end();
}
} catch (Exception& ex) {
caught(ex);
}
}
}
virtual void resize(int w, int h)
{
if (w == 0 || h == 0) {
return;
}
gc.matrixMode(GL_PROJECTION);
gc.loadIdentity();
gc.perspective(16.0, (double)w / (double)h, 0.5, 40.0);
gc.matrixMode(GL_MODELVIEW);
}
virtual void initialize()
{
gc.enable(GL_DEPTH_TEST);
}
public:
SimpleView(OpenGLForm* parent, const char* name, Args& args)
:OpenGLView(parent, name, args)
,positioner(NULL)
{
}
~SimpleView()
{
}
void setPositioner(ColorEyeLightPositioner* pos)
{
positioner = pos; //shallow copy.
}
};
//Inner class end
private:
SmartPtr<SimpleView> view;
SmartPtr<OpenGLForm> form;
SmartPtr<ColorEyeLightPositioner> positioner;
virtual void structureNotify(Event& event)
{
XEvent* xe = event.getXEvent();
if (xe->type == ConfigureNotify) {
configureNotify(event);
} else {
//Add here your own nofity event handlers.
}
//sendExposeEvent();
}
//Your own resize handler.
virtual void configureNotify(Event& event)
{
configure();
}
virtual void configure()
{
Dimension width, height;
get(XmNwidth, (XtArgVal)&width);
get(XmNheight, (XtArgVal)&height);
if (positioner && view) {
Dimension w = width-positioner->getPositionerWidth()-4;
view->set(XmNwidth, w);
view->set(XmNheight, height);
view->resize(w, height);
positioner->resize((Position)(w-4), (Position)0,
w+2, (Dimension)(height-2), (Dimension)0);
}
}
public:
MainView(OpenGLApplication& applet, const char* name, Args& args)
:OpenGLMainView(applet, name, args)
{
Args ar;
form = new OpenGLForm(this, "", ar);
ar.reset();
ar.set(XmNtopAttachment, XmATTACH_FORM);
ar.set(XmNleftAttachment, XmATTACH_FORM);
ar.set(XmNbottomAttachment, XmATTACH_FORM);
ar.set(XmNresizePolicy, XmRESIZE_ANY);
ar.set(XmNopenGLBufferType, (XtArgVal)getBufferType());
view = new SimpleView(form, "", ar);
ar.reset();
ar.set(XmNtopAttachment, XmATTACH_FORM);
ar.set(XmNrightAttachment, XmATTACH_FORM);
ar.set(XmNleftAttachment, XmATTACH_WIDGET);
ar.set(XmNbottomAttachment, XmATTACH_FORM);
ar.set(XmNleftWidget, view->getWidget());
positioner = new ColorEyeLightPositioner(form, "", ar);
positioner->setColorPosition(255, 0, 128);
positioner->setEyePosition(3, 6, 12);
positioner->setLightPosition(-4, -8, 10);
positioner->setExposeEventListener(view);
view->setPositioner(positioner);
this -> addEventHandler(StructureNotifyMask, this,
(Handler)&MainView::structureNotify, NULL);
//Call configure layaout method.
configure();
}
~MainView()
{
}
};
}
//
int main(int argc, char** argv)
{
try {
const char* appclass = argv[0];
OpenGLApplication applet(appclass, argc, argv);
Args args;
args.set(XmNgeometry, "600x400");
MainView view(applet, argv[0], args);
view.realize();
applet.run();
} catch (Exception& ex) {
caught(ex);
}
return 0;
}