SOL9 2.0 Samples

1 Screenshot

2 Source code

/*
 * CubeRotationByKeyInput.cpp 
 * Copyright (c) 2015 Antillia.com TOSHIYUKI ARAI. ALL RIGHTS RESERVED. 
 */


//2016/07/25 Modified the angle incrementation/decrementation by keys in keyDown method of SimpleView class.

#include <sol/Stdio.h>
#include <sol/opengl/OpenGLMainView.h>
#include <sol/opengl/OpenGLView.h>
#include <sol/opengl/OpenGLGC.h>

#include <sol/opengl/OpenGLClientState.h>

#include "Resource.h"

namespace SOL {

class MainView :public OpenGLMainView {

private:
  //Inner class starts.
  class SimpleView: public OpenGLView {
  private:
    SmartPtr<OpenGLGC> gc;
    float     angle;
    
  public:
    virtual void display()
    {
      static GLfloat vertices[] = {
      -0.5f, -0.5f,  0.5f,
       0.5f, -0.5f,  0.5f,
       0.5f,  0.5f,  0.5f,
      -0.5f,  0.5f,  0.5f,

      -0.5f, -0.5f, -0.5f,
       0.5f, -0.5f, -0.5f,
       0.5f,  0.5f, -0.5f,
      -0.5f,  0.5f, -0.5f,
      };
    
      //Colors(RGBAs) for the 5 vertices
      static GLfloat colors[] = { 
        1.0f, 0.0f, 0.0f,
        0.0f, 1.0f, 0.0f,
        0.0f, 0.0f, 1.0f,
        1.0f, 1.0f, 1.0f,

        1.0f, 0.0f, 0.0f,
        0.0f, 1.0f, 0.0f,
        0.0f, 0.0f, 1.0f,
        1.0f, 1.0f, 1.0f,
      };
  
      //Indices for the 4 triangles.
      static GLint indices[] = { 
        0, 1, 2,  2, 3, 0,
        3, 2, 6,  6, 7, 3,
        7, 6, 5,  5, 4, 7,
        4, 5, 1,  1, 0, 4,
        4, 0, 3,  3, 7, 4,
        1, 5, 6,  6, 2, 1,
      };

      if (gc ) { 
    
        gc -> clear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
        gc -> loadIdentity();
        gc -> translate(0.0f,0.0f,-1.0f); 
        gc -> lookAt(2.0, 4.0, 6.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0); 

        //Rotation around y-axis.
        gc -> rotate(angle, 0.0, 1.0, 0.0);
      
        try {        
          OpenGLClientState state1(GL_VERTEX_ARRAY); 
          OpenGLClientState state2(GL_COLOR_ARRAY);

          gc -> vertexPointer(3, GL_FLOAT, 0, vertices);
          gc -> colorPointer (4, GL_FLOAT, 0, colors);
                 
          gc -> drawElements(GL_TRIANGLES, CountOf(indices), GL_UNSIGNED_INT, indices);
      
        } catch (Exception& ex) {
          caught(ex); 
        }
      }
   }
 
    virtual void resize(int w, int h)
    {
      if (w == 0 || h == 0) {
        return;
      }
      if (gc) {
        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 = new OpenGLGC();

      gc -> matrixMode(GL_PROJECTION);
      gc -> clear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
      gc -> loadIdentity();
      gc -> matrixMode(GL_MODELVIEW);

      gc -> enable( GL_DEPTH_TEST );
      gc -> frustum(1 , -1 , -1 , 1 , 1 , 10);
      gc -> clearColor(0.0, 0.0, 1.0, 1.0);
    }

    //2016/07/25 Modified the angle incrementation/decrementation by keys.
    virtual void keyDown(Event& event)
    {
      WPARAM vkey = event.getWParam();
      switch (vkey) {
      case VK_LEFT:
        angle -= 2.0;
        postRenderRequest();
        break;
      case VK_RIGHT:
        angle += 2.0;
        postRenderRequest();
        break;
      default:
        break;
      }
    }
    
  public:
    SimpleView(View* parent, const char* name, Args& args)
    :OpenGLView(parent, name, args),
    angle(0.0)
    {
    } 

    ~SimpleView()
    {
    }
  };
  
  //Inner class ends.
  
private:
  SmartPtr<SimpleView>  view;

  long size(Event& event)
  {
    int w, h;
    event.getSize(w, h);
    if (view) {
      view -> reshape(10, 10, w-20, h-20);    
      view -> postResizeRequest(w-20, h-20);
    }
    return 1L;
  }

  virtual long keyDown(Event& event)
  {
    if (view) {
      view -> keyDown(event);
    }
    return 0;
  }
  
public:
  MainView(Application& applet, const char* name, Args& args)
  :OpenGLMainView(applet, name, args) 
  {
    Args ar;
    addEventHandler(WM_KEYDOWN, this,
              (Handler)&MainView::keyDown, NULL);

    view = new SimpleView(this, "", ar);
  }

  ~MainView()
  {
  }
};
}

//
void Main(int argc, char** argv) 
{
  try {    
    const char*  name = appName(argv[0]);
    Application applet(name, argc, argv);

    Args args;
    args.set(XmNwidth, 400);
    args.set(XmNheight, 300);
    
    MainView view(applet, name, args);
    view.realize();

    applet.run();
    
  } catch (Exception& ex) {
    caught(ex);
  }
}