SOL9 2.0 Samples

1 Screenshot

2 Source code

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


//2015/08/22

#include <sol/opengl/OpenGLMainView.h>
#include <sol/opengl/OpenGLView.h>
#include <sol/opengl/OpenGLGC.h>
#include <sol/opengl/OpenGLTexture2D.h>
#include <sol/FileDialog.h>

namespace SOL {

class MainView :public OpenGLMainView {

private:
  //Inner class starts
  class SimpleView: public OpenGLView {
  private:
    SmartPtr<OpenGLGC>        gc;
    SmartPtr<OpenGLTexture2D> texture;

  public:
    virtual void display()
    {
      if (gc && texture) {
        gc -> clearColor(1.0, 1.0, 1.0, 1.0);
        gc -> clear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
        gc -> color(1.0, 1.0, 1.0);
        gc -> rotate(5.0, 0.5, 1.0, 0.25);


        glNormal3d(0.0, 0.0, 1.0);
        gc -> begin(GL_QUADS);
        texture -> coord(0.0, 0.0); 
        gc-> vertex(-1.0,  1.0, 0.0);

        texture -> coord(1.0, 0.0); 
        gc ->vertex( 1.0,  1.0, 0.0);

        texture -> coord(1.0, 1.0); 
        gc -> vertex( 1.0, -1.0, 0.0);

        texture -> coord(0.0, 1.0); 
        gc -> vertex(-1.0, -1.0, 0.0);
        gc -> end();
      }
    }
 
    virtual void resize(int w, int h)
    {
      if (w == 0 || h == 0) {
        return;
      }
      if (gc) {
        gc -> matrixMode(GL_PROJECTION);
        gc -> loadIdentity();
        gc -> ortho(-1.25, 1.25, -1.25, 1.25, 1., 20.);

        gc -> matrixMode(GL_MODELVIEW);
        gc -> loadIdentity();
        gc -> lookAt(0., 0., 10., 0., 0., 0., 0., 1., 0.);
      }
    }

    virtual void initialize()
    {
      gc = new OpenGLGC();
      gc -> enable(GL_DEPTH_TEST);
      gc -> enable(GL_TEXTURE_2D);
      createTexture("./images/LightedTorus.png");
    }

  public:
    void createTexture(const char* filename)
    {
      if (texture) {
        texture = NULL;
      }
      texture = new OpenGLTexture2D();
      texture -> bind();
      texture -> parameter(GL_TEXTURE_MIN_FILTER, GL_LINEAR);
      texture -> parameter(GL_TEXTURE_MAG_FILTER, GL_LINEAR);
      texture -> env(GL_TEXTURE_ENV_MODE, GL_MODULATE); 
      
      //As you know, in general, an image width or height must be the power of 2.
      try {
        texture -> mipmapFromPNGFile(filename);
      } catch (Exception& ex) {
        caught(ex);
      }
    }

  public:
    SimpleView(View* parent, const char* name, Args& args)
    :OpenGLView(parent, name, args)
    {
    } 

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

private:
  virtual void open(Action& action)
  {
    fileDialog -> popup(action);    
    if (action.getResult()) {
       char* filename = fileDialog -> getFileName();
       if (String::endsWithIgnoreCase(filename, ".png")) {
         view -> createTexture(filename);
         view -> refresh();
       } else {
         showMessageDialog("Invalid File", filename, MB_ICONINFORMATION|MB_OK);
       }
     } 
  }

private:
  long size(Event& event)
  {
    int w, h;
    event.getSize(w, h);
    if (view) {
      view -> reshape(0, 0, w, h);
      view -> postResizeRequest(w, h);
    }
    return 1L;
  }

public:
  MainView(Application& applet, const char* name, Args& args)
  :OpenGLMainView(applet, name, args),
  view(NULL) 
  {
    Args ar;
    view = new SimpleView(this, "", ar);

    ar.reset();
    ar.set(XmNaccessMode, FileDialog::OPEN);
    fileDialog = new FileDialog(this, "", ar);
  }

  ~MainView()
  {
    delete view;
    delete fileDialog;
  }
};
}

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

    Args args;
    args.set(XmNwidth, 500);
    args.set(XmNheight, 400);
    MainView view(applet, name, args);
    view.realize();

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