add vcglib

vcglib/apps/test/trackball/main.cpp

@@ -0,0 +1,166 @@
+#include <iostream>
+using namespace std;
+
+#ifdef _WIN32
+#include<windows.h>
+#endif
+
+#include <SDL/SDL.h>
+
+//#include <GL/glew.h>
+#include <wrap/gui/trackball.h>
+#include <GL/glut.h>
+
+using namespace vcg;
+
+bool fullscreen = false;
+//int width =1024;
+//int height = 768;
+int width = 800;
+int height = 600;
+
+
+
+SDL_Surface *screen = NULL;
+
+bool init() {
+  
+  if(SDL_Init(SDL_INIT_VIDEO) != 0) {
+    return false;
+  }
+
+  const SDL_VideoInfo *info = SDL_GetVideoInfo();
+  int bpp = info->vfmt->BitsPerPixel;
+
+  SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 5);
+  SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
+
+  int flags = SDL_OPENGL;
+  if(fullscreen) 
+    flags |= SDL_FULLSCREEN;
+
+  screen = SDL_SetVideoMode(width, height, bpp, flags);
+  if(!screen) {
+    return false;
+  }
+  
+  SDL_WM_SetIcon(SDL_LoadBMP("inspector.bmp"), NULL);
+  SDL_WM_SetCaption(" Inspector", "Inspector");
+
+
+  glDisable(GL_DITHER);
+  glShadeModel(GL_SMOOTH);
+  glHint( GL_FOG_HINT, GL_NICEST );
+  glEnable(GL_DEPTH_TEST);
+  glDepthFunc( GL_LEQUAL );
+  glDisable(GL_LIGHTING); 
+
+  return true;
+}
+
+
+
+
+int main(int argc, unsigned short **argv) {  
+  if(!init()) return -1;
+  glewInit();
+  
+  Trackball trackball;
+
+  int quit = 0;
+  int x, y;
+  SDL_Event event;  
+  while( !quit ) {                
+    while( SDL_PollEvent( &event ) ){                        
+      switch( event.type ) {
+        case SDL_QUIT:  quit = 1; break; 
+
+        case SDL_KEYDOWN:   
+          switch(event.key.keysym.sym) {
+            case SDLK_RSHIFT:
+            case SDLK_LSHIFT:
+              trackball.ButtonDown(Trackball::KEY_SHIFT);
+              break;
+
+            case SDLK_RCTRL:
+            case SDLK_LCTRL:
+              trackball.ButtonDown(Trackball::KEY_CTRL);
+              break;
+
+            case SDLK_RALT:
+            case SDLK_LALT:
+              trackball.ButtonDown(Trackball::KEY_ALT);
+              break;
+          }
+          break;
+
+        case SDL_KEYUP:
+          switch(event.key.keysym.sym) {
+            case SDLK_q: exit(0); break;            
+            
+            case SDLK_RSHIFT:
+            case SDLK_LSHIFT:
+              trackball.ButtonUp(Trackball::KEY_SHIFT);
+              break;
+
+            case SDLK_RCTRL:
+            case SDLK_LCTRL:
+              trackball.ButtonUp(Trackball::KEY_CTRL);
+              break;
+
+            case SDLK_RALT:
+            case SDLK_LALT:
+              trackball.ButtonUp(Trackball::KEY_ALT);
+              break;
+          }
+          break;
+        case SDL_MOUSEBUTTONDOWN:       
+          x = event.button.x;
+          y = height - event.button.y;          
+          trackball.MouseDown(x, y, Trackball::BUTTON_LEFT);
+        break;
+        case SDL_MOUSEBUTTONUP:          
+          x = event.button.x;
+          y = height - event.button.y;          
+          trackball.MouseUp(x, y, Trackball::BUTTON_LEFT);
+          break;
+        case SDL_MOUSEMOTION: 
+          while(SDL_PeepEvents(&event, 1, SDL_GETEVENT, SDL_MOUSEMOTIONMASK));
+          x = event.motion.x;
+          y = height - event.motion.y;
+          trackball.MouseMove(x, y);        
+          break;  
+      }
+        
+    }
+    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    gluPerspective(60, 1, 0.1, 100);
+    glMatrixMode(GL_MODELVIEW);
+    glLoadIdentity();
+    gluLookAt(0,0,6,   0,0,0,   0,1,0);        
+    glRotatef(130, 1, 1, 0);
+    glTranslatef(0, 1, 1);
+    
+    
+    //    trackball.SetPosition(Similarityf(Point3f(1, 0, 0)));
+    //    trackball.local.sca = 0.5;
+    trackball.GetView();
+    trackball.Apply();
+    trackball.Draw();
+
+    glColor3f(0, 1, 0);
+    glutWireCube(1);
+    
+    SDL_GL_SwapBuffers();
+  }
+
+        
+  // Clean up
+  SDL_Quit();
+  
+
+  return -1;
+}
+