/******************************************************************************
*
* Copyright (c) 2015 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:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer.
*
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*
* Fog.cpp
*
*****************************************************************************/
#include <oz++/opengl/OpenGLMainView.h>
#include <oz++/opengl/OpenGLView.h>
#include <oz++/opengl/OpenGLGC.h>
#include <oz++/opengl/OpenGLFog.h>
#include <oz++/opengl/OpenGLVertex3.h>
namespace OZ {
class MainView :public OpenGLMainView {
private:
//Inner class starts.
class SimpleView: public OpenGLView {
private:
SmartPtr<OpenGLGC> gc;
public:
virtual void display()
{
if (gc == NULL) {
return;
}
gc -> clear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
gc -> loadIdentity();
gc -> clearColor(0.0, 0.0, 1.0, 0.0);
gc -> matrixMode(GL_PROJECTION);
gc -> frustum(1 , -1 , -1 , 1 , 1 , 10);
OpenGLFog fog;
fog.mode(GL_LINEAR);
fog.color(0.0, 0.0, 1.0, 0.0);
fog.start(1.0);
fog.end(10.0);
gc -> begin(GL_POLYGON);
static OpenGLVertex3 vertices[] = {
{ 0.0, -0.9 , -2.0},
{ 3.0, -0.9 , -7.0},
{ 0.0, 0.9 , -2.0},
{ 0.0, -0.9 , -2.0},
{-3.0, -0.9 , -7.0},
{ 0.0 , 0.9 , -2.0}
};
gc -> draw(vertices, SizeOf(vertices));
gc -> end();
}
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();
}
public:
SimpleView(OpenGLMainView* parent, const char* name, Args& args)
:OpenGLView(parent, name, args)
{
}
~SimpleView()
{
}
};
//Inner class ends.
private:
SmartPtr<SimpleView> view;
public:
MainView(OpenGLApplication& applet, const char* name, Args& args)
:OpenGLMainView(applet, name, args)
{
Args ar;
ar.set(XmNopenGLBufferType, (XtArgVal)getBufferType());
view = new SimpleView(this, "", ar);
}
~MainView()
{
}
};
}
//
int main(int argc, char** argv)
{
try {
const char* appclass = argv[0];
OpenGLApplication applet(appclass, argc, argv);
Args args;
args.set(XmNgeometry, "400x300");
MainView view(applet, argv[0], args);
view.realize();
applet.run();
} catch (Exception& ex) {
caught(ex);
}
return 0;
}