VIZ++ Samples

1 Screenshot

2 Source code

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


//2015/08/2 Updated

#include <viz++/opengl/OpenGLMainView.h>
#include <viz++/opengl/OpenGLGC.h>
#include <viz++/opengl/OpenGLTexture2D.h>
#include <viz++/opengl/OpenGLDialog.h>
#include <viz++/opengl/OpenGLFileOpenDialog.h>
#include <viz++/StringT.h>

namespace VIZ {

class MainView :public OpenGLMainView {

private:
  SmartPtr<OpenGLGC>        gc;
  SmartPtr<OpenGLTexture2D> texture;

public:
  virtual void display()
  {
    if (gc && texture) {
      gc -> clear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

      gc -> clearColor(1.0, 1.0, 1.0, 1.0);
      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);

      const char* pngfile = "./images/Nioh.png";

      createTexture(pngfile);
  }

  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); 

    try {
      texture -> imageFromFile(filename);
    } catch (Exception& ex) {
      caught(ex);
    }
  }

  virtual void mouseButtonCallback(int button, int action, int mods)
  {
     if (button ==RIGHT_BUTTON && action == BUTTON_DOWN) {
       loadTexture();
     }
  }
  
  void loadTexture()
  {
    StringT<char> folderName;

    getModuleFolderName(folderName);
    printf("moduleFolder %s\n", (const char*)folderName);

    OpenGLFileOpenDialog dialog(this, 
                         (const char*)folderName,
                         "PNG Files (*.png)\0*.png\0All Files (*.*)\0*.*\0", 
                         "png");
       
    if (dialog.popup() ) {
      StringT<char> name;
      dialog.getFileName(name);    
      const char* filename = (const char*)name;
      if (StringT<char>::endsWithIgnoreCase(filename, ".png")) {

        createTexture(filename);
        activate();
        char title[1024];
        const char* name = filename;
        const char* slash = strrchr(filename, '\\');
        if (slash) {
          name = ++slash;
        }
        sprintf(title, "%s - %s", name, getTitle()); 
        setWindowTitle(title);
      }
    }
     
  }
  
  //Please define your own method in your subclass derived from this class.
  virtual void menuCallback(WORD menuId)
  {
    HWND hwnd = getHwnd();
    char message[1024];
    sprintf_s(message, CountOf(message), "Default menu callback. MenuId(%d)", menuId);
    switch (menuId) {
    case IDM_OPEN:
      {
        loadTexture();
      }
      break;
      
    case IDM_EXIT:
      {
        int rc = MessageBox(hwnd, "Are you sure to want to exit this program?", "Confirmation",  MB_OKCANCEL|MB_ICONINFORMATION);
        if (rc == IDOK) {
          ::PostQuitMessage(0);
        }
      }
      break;
      
    case IDM_VERSION:
      MessageBox(hwnd, "VIZ++  Copyright(C) Antillia.com 2017", "Version",  MB_OK|MB_ICONINFORMATION);
      break;
      
    default:
      MessageBox(hwnd, message, "MenuCallback", MB_OK|MB_ICONINFORMATION);
    }
  }
  
public:
  MainView(OpenGLApplet& applet, int width, int height, const char* name)
  :OpenGLMainView(applet, width, height, name)
  {
    enableMouseButtonCallback();
  }

  ~MainView()
  {
  }
};
}

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

    MainView view(applet, 500, 400, name);
    view.realize();
    applet.run();
    
  } catch (Exception& ex) {
    caught(ex);
  }
  return 0;
}