VIZ++ Samples

1 Screenshot

2 Source code

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


//2015/08/03
//2017/02/10 Updated.

#include <viz++/opengl/OpenGLMainView.h>
#include <viz++/opengl/OpenGLGC.h>
#include <viz++/opengl/OpenGLBitmapFont.h>
#include <viz++/Callback.h>

namespace VIZ {

class MainView :public OpenGLMainView {

private:
  OpenGLGC* gc;
  int width;
  int height;
  SmartPtr<OpenGLBitmapFont> font;      //GLUT_BITMAP_9_BY_15
  SmartPtr<OpenGLBitmapFont> helvetica; //GLUT_BITMAP_HELVETICA_18
  SmartPtr<OpenGLBitmapFont> timesRoman;//GLUT_BITMAP_TIMES_ROMAN_24

public:
  virtual void display()
  { 
    if (gc && font && helvetica && timesRoman) {
      gc -> matrixMode(GL_PROJECTION);

      gc -> loadIdentity();
      gc -> ortho2D(0, width, height, 0);
      gc -> matrixMode(GL_MODELVIEW);
      gc -> loadIdentity();

      gc -> clear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

      gc -> backgroundColor(0.0, 0.0, 0.0, 1.0);
      const char* version = glfwGetVersionString();


      gc -> pushMatrix();
      gc -> foregroundColor(1.0, 0.0, 0.0);
      font -> drawString(20, 40, version);
      gc -> popMatrix();

      gc -> pushMatrix();
      gc -> foregroundColor(0.0, 1.0, 0.0);

      helvetica -> drawString(20, 100, version);
      gc -> popMatrix();

      gc -> pushMatrix();
      gc -> foregroundColor(0.0, 0.0, 1.0);

      timesRoman -> drawString(20, 160, version);
      gc -> popMatrix();
    }
  }
 
  virtual void resize(int w, int h)
  {
    if (w == 0 || h == 0) {
          return;
    }
    if (gc) {
       gc -> matrixMode(GL_PROJECTION);
       gc -> loadIdentity();
       gc -> matrixMode(GL_MODELVIEW);
    }
  }
    
  virtual void initialize()
  {
      gc = new OpenGLGC();

      gc -> matrixMode(GL_PROJECTION);
      gc -> loadIdentity();
      //gc -> ortho2D(0, width, height, 0);

      gc -> matrixMode(GL_MODELVIEW);
      gc -> enable(GL_LINE_SMOOTH);
      gc -> enable(GL_BLEND);
      gc -> blendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 
      font       = new OpenGLBitmapFont(GLUT_BITMAP_9_BY_15);
      helvetica  = new OpenGLBitmapFont(GLUT_BITMAP_HELVETICA_18);
      timesRoman = new OpenGLBitmapFont(GLUT_BITMAP_TIMES_ROMAN_24);
  }
 
public:
  MainView(OpenGLApplet& applet, int width, int height, const char* name)
  :OpenGLMainView(applet, width, height, name)
  {
    this -> width = width;
    this -> height = height;
  }
  
  ~MainView()
  {
  }
};
}

//
int main(int argc, char** argv) 
{
  try {
    //Intialize glut library
    glutInit(&argc, argv);
    ModuleFileName module;
    const char*  name = module.getAppName();
    OpenGLApplet applet(argc, argv);

    MainView view(applet, 400, 300, name);
    view.realize();
    applet.run();
    
  } catch (Exception& ex) {
    caught(ex);
  }
  return 0;
}