Es++ Sample: LightedSphereOrbiter |
/****************************************************************************** * * Copyright (c) 2017 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. * * * LightedSphereOrbiter.cpp * *****************************************************************************/ // #include <es++/opengl/OpenGLApplication.h> #include <es++/opengl/OpenGLMainView.h> #include <es++/opengl/OpenGLView.h> #include <es++/opengl/OpenGLGC.h> #include <es++/opengl/OpenGLLight.h> #include <es++/opengl/OpenGLMaterial.h> #include <es++/opengl/OpenGLSphere.h> #include <es++/opengl/OpenGLCircle.h> using namespace Gtk; namespace Es { class MainView :public Es::OpenGLMainView { private: /////////////////////////////////////////////////////// //Inner class starts. class SimpleView :public Es::OpenGLView { private: OpenGLGC gc; SmartPtr<OpenGLQuadric> quadric; SmartPtr<OpenGLSphere> sphere; SmartPtr<OpenGLCircle> circle; float angle; static const int CIRCLE_ANGLE = 360; static const int INCREMENT = 1; public: SimpleView() :OpenGLView() ,angle(2.0f) { } ~SimpleView() { } virtual void display() { if (angle <(CIRCLE_ANGLE - INCREMENT) ) { angle += INCREMENT; } else { angle = INCREMENT; } if (sphere && circle) { setPerspective(); Vertex3 pos = circle->getOrbitPosition(angle); gc.clear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); gc.loadIdentity(); gc.lookAt(-5.0, 10.0, 4.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0); gc.clearColor(0.0, 0.0, 0.0, 1.0); gc.enable(GL_CULL_FACE); gc.enable(GL_LIGHTING); gc.translate(0.0f, 0.0f, 0.0f); gc.color(1.0f, 1.0f, 1.0f); //green circle->draw(&gc); gc.translate(pos.x, pos.y, pos.z); OpenGLLight light(GL_LIGHT0); GLfloat lightPosition[] = {-2.0f, 0.0f, -1.0f, 1.0}; light.position(lightPosition); GLfloat white[] = {1.0f, 1.0f, 1.0f, 1.0f}; GLfloat blue[] = {0.0f, 0.0f, 1.0f, 1.0f}; GLfloat green[] = {0.0f, 1.0f, 0.0f, 1.0f}; GLfloat shininess[] = {100.0}; OpenGLMaterial material(GL_FRONT); material.diffuse(green); material.specular(white); material.shininess(shininess); sphere-> draw(0.5f, 40, 40); } } virtual void resize(int w, int h) { if (w == 0 || h == 0) { return; } setPerspective(); } virtual void initialize() { quadric = new OpenGLQuadric(); quadric -> drawStyle(GLU_FILL); quadric -> normals(GLU_SMOOTH); sphere = new OpenGLSphere(quadric); circle = new OpenGLCircle(0.0f, 0.0f, 0.0f, 1.3f); } }; // Inner class ends. /////////////////////////////////////////////////////// Es::HorizontalLayout horiz_layout; SimpleView simple_view; public: ////////////////////////////////////////////// //Constructor // MainView(Es::OpenGLApplication& applet, std::string& name, Es::Args& args) :OpenGLMainView(applet, name, args) { int w = (int)args.get(XmNwidth); int h = (int)args.get(XmNheight); Es::MainLayout& main_layout = get_main_layout(); main_layout.pack_start(horiz_layout); horiz_layout.pack_start(simple_view); OpenGLContext* context = applet.getOpenGLContext(); simple_view.set_opengl_context(context); simple_view.set_size_request(400, 400); show_all_children(); } void render() { simple_view.render(); } }; } int main(int argc, char** argv) { Es::Environment env; XInitThreads(); try { std::string name = argv[0]; Es::OpenGLApplication applet(argc, argv); Es::Args args; args.set(XmNx, 20); args.set(XmNy, 40); args.set(XmNwidth, 400); args.set(XmNheight, 400); Es::MainView mainv(applet, name, args); mainv.show(); applet.run(mainv); } catch (Es::Exception& ex) { caught(ex); } catch (...) { printf("Get exception \n"); } return 0; }