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30 results

Callbacks.cpp

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    Callbacks.cpp 42.50 KiB
    // $Id: Callbacks.cpp,v 1.21 2001-01-24 09:28:03 geuzaine Exp $
    
    #include "Gmsh.h"
    #include "GmshUI.h"
    #include "Geo.h"
    #include "Verif.h"
    #include "Mesh.h"
    #include "Draw.h"
    #include "Views.h"
    #include "Timer.h"
    #include "Visibility.h"
    #include "CreateFile.h"
    #include "OpenFile.h"
    #include "Context.h"
    #include "GUI.h"
    #include "Callbacks.h"
    
    #include <FL/Fl.H>
    #include <FL/Fl_Button.H>
    #include <FL/Fl_Window.H>
    #include <FL/Fl_Input.H>
    #include <FL/fl_file_chooser.H>
    #include <stdio.h>
    #include <string.h>
    #include <errno.h>
    #include <stdlib.h>
    #include <FL/fl_file_chooser.H>
    #include <stdio.h>
    #include <string.h>
    #include <errno.h>
    #include <stdlib.h>
    
    extern GUI       *WID;
    extern Mesh       M;
    extern Context_T  CTX;
    
    ///////////////////////////////////////////////////////////////////////////////
    
    // Compatibility/local routines
    
    int AddViewInUI(int i, char *Name, int Num){
      if(i > NB_BUTT_MAX -1) return 1;
      if(WID->get_context() == 2)
        WID->set_context(menu_post,0);
      return 0;
    }
    
    void MarkAllViewsChanged(int action){
      int i;
      Post_View *v;
    
      for(i = 0 ; i< List_Nbr(Post_ViewList) ; i++){
        v = (Post_View*)List_Pointer(Post_ViewList, i);
        switch(action){
        case 1: // toggle drawing mode
          if(v->IntervalsType == DRAW_POST_ISO) 
            v->IntervalsType = DRAW_POST_DISCRETE ;
          else if(v->IntervalsType == DRAW_POST_DISCRETE) 
            v->IntervalsType = DRAW_POST_CONTINUOUS ;
          else 
            v->IntervalsType = DRAW_POST_ISO ;
          break;
        case 2: // time step++
          if(v->TimeStep < v->NbTimeStep-1)
            v->TimeStep++ ;
          else
            v->TimeStep = 0 ;
          break;
        case 3: // time step--
          if(v->TimeStep > 0)
            v->TimeStep-- ;
          else
            v->TimeStep = v->NbTimeStep-1 ;
        }
        v->Changed = 1 ;
      }
    }
    
    #ifdef _USETHREADS
    
    #include <pthread.h>
    
    int        MeshDim ;
    pthread_t  MeshThread ;
    
    void* StartMeshThread(void * data){
      pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL);
      mai3d(&M,MeshDim);
      Msg(STATUS3N,"Ready");
      CTX.mesh.draw = 1;
      CTX.threads_lock = 0;
      XtSetSensitive(WID.G.Butt[6], 0);
      Init();
      Draw();
      pthread_exit(NULL);
      return NULL ;
    }
    
    void CancelMeshThread(void){
      if(CTX.threads){
        pthread_cancel(MeshThread);
        CTX.mesh.draw = 1;
        CTX.threads_lock = 0;
        XtSetSensitive(WID.G.Butt[6], 0);    
        Msg(STATUS2,"Mesh Aborted");
        mesh_event_handler(MESH_DELETE);
        Msg(STATUS3N,"Ready");
        Init();
        Draw();
      }
    }
    
    #else
    
    void CancelMeshThread(void){
      
    }
    
    #endif
    
    int SetGlobalShortcut(int event){
      return WID->global_shortcuts(event);
    }
    
    int SelectContour (int type, int num, List_T *Liste1){
      int      k,ip,i;
      List_T  *Liste2;
    
      Liste2 = List_Create(1,1,sizeof(int));
    
      if(!List_Nbr(Liste1)){
        switch(type){
        case ENT_LINE    : k = alledgeslinked (num, Liste1, (List_T*)NULL); break;
        case ENT_SURFACE : k = allfaceslinked (num, Liste1, (List_T*)NULL); break;
        }
      }
      else{
        List_Reset(Liste2);
        for(i=0;i<List_Nbr(Liste1);i++)
          List_Add(Liste2,List_Pointer(Liste1,i));
        List_Reset(Liste1);
        switch(type){
        case ENT_LINE    : k = alledgeslinked (num, Liste1, Liste2); break;
        case ENT_SURFACE : k = allfaceslinked (num, Liste1, Liste2); break;
        }
      }
    
      for(i=0;i<List_Nbr(Liste1);i++){
        List_Read(Liste1,i,&ip);
        switch(type){
        case ENT_LINE    : HighlightEntityNum(0,abs(ip),0,1); break ;
        case ENT_SURFACE : HighlightEntityNum(0,0,abs(ip),1); break ;
        }
      }
    
      List_Delete(Liste2);
      return k;
    }
    
    ///////////////////////////////////////////////////////////////////////////////
    
    
    // Common callbacks 
    
    void cancel_cb(CALLBACK_ARGS){
      if(data) ((Fl_Window*)data)->hide();
    }
    
    void ok_cb(CALLBACK_ARGS){
      Init();
      Draw();
    }
    
    // Graphical window 
    
    void status_xyz1p_cb(CALLBACK_ARGS){
    
      extern void set_r(int i, double val);
      extern void set_t(int i, double val);
      extern void set_s(int i, double val);
    
      switch((int)data){
      case 0 : 
        if(CTX.useTrackball)
          CTX.setQuaternion(0.,-1./sqrt(2.),0.,1./sqrt(2.));
        set_r(0,0.);  set_r(1,90.);set_r(2,0.); 
        Init(); Draw(); 
        break;
      case 1 : 
        if(CTX.useTrackball)
          CTX.setQuaternion(1./sqrt(2.),0.,0.,1./sqrt(2.));
        set_r(0,-90.);set_r(1,0.); set_r(2,0.); 
        Init(); Draw(); 
        break;
      case 2 :
        if(CTX.useTrackball)
          CTX.setQuaternion(0.,0.,0.,1.);
        set_r(0,0.);  set_r(1,0.); set_r(2,0.); 
        Init(); Draw(); 
        break;
      case 3 : 
        set_t(0,0.);  set_t(1,0.); set_t(2,0.); 
        set_s(0,1.);  set_s(1,1.); set_s(2,1.); 
        Init(); Draw(); 
        break;
      case 4 :
        Print_Context(NULL);
        break ;
      }
    }
    
    static int stop_anim ;
    void status_play_cb(CALLBACK_ARGS){
      static long anim_time ;
      WID->set_anim(0);
      stop_anim = 0 ;
      anim_time = GetTime();
      while(1){
        if(stop_anim) break ;
        WID->check();
        if(GetTime() - anim_time > CTX.post.anim_delay){
          anim_time = GetTime();
          MarkAllViewsChanged(2);
          Init(); Draw();
        }
      }
    }
    
    void status_pause_cb(CALLBACK_ARGS){
      stop_anim = 1;
      WID->set_anim(1);
    }
    
    void status_cancel_cb(CALLBACK_ARGS){
      CancelMeshThread();
    }
    
    // File Menu
    
    void file_open_cb(CALLBACK_ARGS) {
      char *newfile;
      newfile = fl_file_chooser("Open File", "*.geo", NULL);
      if (newfile != NULL) {
        OpenProblem(newfile); 
        Init();
        Draw(); 
      }
    }
    
    void file_merge_cb(CALLBACK_ARGS) {
      char *newfile;
      newfile = fl_file_chooser("Merge File", "*", NULL);
      if (newfile != NULL) {
        MergeProblem(newfile); 
        Init();
        Draw(); 
      }
    }
    
    void file_save_cb(CALLBACK_ARGS) {
      Print_Mesh(&M, NULL, CTX.mesh.format);
    }
    
    
    void file_save_as_auto_cb(CALLBACK_ARGS) {
      char *newfile;
      if((newfile = fl_file_chooser("Save File by Extension", "*", NULL)))
        CreateFile(newfile, CTX.print.format = FORMAT_AUTO); 
    }
    
    void file_save_as_geo_cb(CALLBACK_ARGS) {
      char *newfile;
      if((newfile = fl_file_chooser("Save GEO File", "*", NULL)))
        CreateFile(newfile, CTX.print.format = FORMAT_GEO); 
    }
    
    void file_save_as_geo_options_cb(CALLBACK_ARGS) {
      char *newfile;
      if((newfile = fl_file_chooser("Save Options File", "*", NULL)))
        Print_Context(newfile); 
    }
    
    void file_save_as_msh_cb(CALLBACK_ARGS) {
      char *newfile;
      if((newfile = fl_file_chooser("Save MSH File", "*", NULL)))
        CreateFile(newfile, CTX.print.format = CTX.mesh.format = FORMAT_MSH); 
    }
    void file_save_as_unv_cb(CALLBACK_ARGS) {
      char *newfile;
      if((newfile = fl_file_chooser("Save UNV File", "*", NULL)))
        CreateFile(newfile, CTX.print.format = CTX.mesh.format = FORMAT_UNV); 
    }
    void file_save_as_gref_cb(CALLBACK_ARGS) {
      char *newfile;
      if((newfile = fl_file_chooser("Save GREF File", "*", NULL)))
        CreateFile(newfile, CTX.print.format = CTX.mesh.format = FORMAT_GREF); 
    }
    void file_save_as_eps_simple_cb(CALLBACK_ARGS) {
      char *newfile;
      if((newfile = fl_file_chooser("Save EPS File", "*", NULL))){
        CTX.print.eps_quality = 1; 
        CreateFile(newfile, CTX.print.format = FORMAT_EPS); 
      }
    }
    void file_save_as_eps_accurate_cb(CALLBACK_ARGS) {
      char *newfile;
      if((newfile = fl_file_chooser("Save EPS File", "*", NULL))){
        CTX.print.eps_quality = 2; 
        CreateFile(newfile, CTX.print.format = FORMAT_EPS); 
      }
    }
    void file_save_as_jpeg_cb(CALLBACK_ARGS) {
      char *newfile;
      if((newfile = fl_file_chooser("Save JPEG File", "*", NULL)))
        CreateFile(newfile, CTX.print.format = FORMAT_JPEG); 
    }
    
    void file_save_as_gif_cb(CALLBACK_ARGS) {
      char *newfile;
      if((newfile = fl_file_chooser("Save GIF File", "*", NULL))){
        CTX.print.gif_dither = 0;
        CTX.print.gif_transparent = 0;
        CreateFile(newfile, CTX.print.format = FORMAT_GIF); 
      }
    }
    void file_save_as_gif_dithered_cb(CALLBACK_ARGS) {
      char *newfile;
      if((newfile = fl_file_chooser("Save GIF File", "*", NULL))){
        CTX.print.gif_dither = 1; 
        CTX.print.gif_transparent = 0; 
        CreateFile(newfile, CTX.print.format = FORMAT_GIF); 
      }
    }
    void file_save_as_gif_transparent_cb(CALLBACK_ARGS) {
      char *newfile;
      if((newfile = fl_file_chooser("Save GIF File", "*", NULL))){
        CTX.print.gif_dither = 0;
        CTX.print.gif_transparent = 1; 
        CreateFile(newfile, CTX.print.format = FORMAT_GIF);
      }
    }
    void file_save_as_ppm_cb(CALLBACK_ARGS) {
      char *newfile;
      if((newfile = fl_file_chooser("Save PPM File", "*", NULL)))
        CreateFile(newfile, CTX.print.format = FORMAT_PPM); 
    }
    void file_save_as_yuv_cb(CALLBACK_ARGS) {
      char *newfile;
      if((newfile = fl_file_chooser("Save YUV File", "*", NULL)))
        CreateFile(newfile, CTX.print.format = FORMAT_YUV); 
    }
    
    static int RELOAD_ALL_VIEWS = 0 ;
    
    void file_reload_all_views_cb(CALLBACK_ARGS) {
      if(!Post_ViewList) return;
      RELOAD_ALL_VIEWS = 1;
      for(int i = 0 ; i<List_Nbr(Post_ViewList) ; i++)
        view_reload_cb(NULL, (void *)i);
      RELOAD_ALL_VIEWS = 0;
      Init();
      Draw();
    }
    
    static int REMOVE_ALL_VIEWS = 0 ;
    
    void file_remove_all_views_cb(CALLBACK_ARGS) {
      if(!Post_ViewList) return;
      REMOVE_ALL_VIEWS = 1;
      while(List_Nbr(Post_ViewList))
        view_remove_cb(NULL, (void*)0);
      REMOVE_ALL_VIEWS = 0;
      Init();
      Draw();
    }
    
    void file_quit_cb(CALLBACK_ARGS) {
      Exit(0);
    }
    
    // Option General Menu
    
    void opt_general_cb(CALLBACK_ARGS) {
      WID->create_general_options_window();
    }
    void opt_general_moving_axes_cb(CALLBACK_ARGS){
      CTX.axes = !CTX.axes ;
    }
    void opt_general_small_axes_cb(CALLBACK_ARGS){
      CTX.small_axes = !CTX.small_axes ;
    }
    void opt_general_fast_redraw_cb(CALLBACK_ARGS){
      CTX.fast = !CTX.fast ;
    }
    void opt_general_display_lists_cb(CALLBACK_ARGS){
      CTX.display_lists = !CTX.display_lists ;
    }
    void opt_general_alpha_blending_cb(CALLBACK_ARGS){
      CTX.alpha = !CTX.alpha ;
    }
    void opt_general_trackball_cb(CALLBACK_ARGS){
      CTX.useTrackball = !CTX.useTrackball ;
    }
    void opt_general_orthographic_cb(CALLBACK_ARGS){
      if((int)data) CTX.ortho = 1;
      else CTX.ortho = 0;
    }
    void opt_general_color_cb(CALLBACK_ARGS){
      Init_Colors((int)((Fl_Value_Input*)w)->value()-1);
      Init();
      Draw();
    }
    void opt_general_shininess_cb(CALLBACK_ARGS){
      CTX.shine = ((Fl_Value_Input*)w)->value();
    }
    void opt_general_light_cb(CALLBACK_ARGS){
      CTX.light_position[0][(int)data] = ((Fl_Value_Input*)w)->value();
    }
    
    // Option Geometry Menu
    
    void opt_geometry_cb(CALLBACK_ARGS) {
      WID->create_geometry_options_window();
    }
    void opt_geometry_entity_cb(CALLBACK_ARGS) {
      switch((int)data){
      case 0: CTX.geom.points = !CTX.geom.points; break;
      case 1: CTX.geom.lines = !CTX.geom.lines; break;
      case 2: CTX.geom.surfaces = !CTX.geom.surfaces; break;
      case 3: CTX.geom.volumes = !CTX.geom.volumes; break;
      }
    }
    void opt_geometry_num_cb(CALLBACK_ARGS) {
      switch((int)data){
      case 0: CTX.geom.points_num = !CTX.geom.points_num; break;
      case 1: CTX.geom.lines_num = !CTX.geom.lines_num; break;
      case 2: CTX.geom.surfaces_num = !CTX.geom.surfaces_num; break;
      case 3: CTX.geom.volumes_num = !CTX.geom.volumes_num; break;
      }
    }
    void opt_geometry_show_by_entity_num_cb(CALLBACK_ARGS) {
      const char * c = ((Fl_Input*)w)->value(); 
      if (!strcmp(c,"all") || !strcmp(c,"*")){
        if(SHOW_ALL_ENTITIES){ RemplirEntitesVisibles(0); SHOW_ALL_ENTITIES = 0; }
        else { RemplirEntitesVisibles(1); SHOW_ALL_ENTITIES = 1; }
      }
      else{ 
        int i = atoi(c);
        if(EntiteEstElleVisible(i)) ToutesLesEntitesRelatives(i,EntitesVisibles,0);
        else ToutesLesEntitesRelatives(i,EntitesVisibles,1);
      }
    }
    
    void opt_geometry_normals_cb(CALLBACK_ARGS) {
      CTX.geom.normals = ((Fl_Value_Input*)w)->value();
    }
    void opt_geometry_tangents_cb(CALLBACK_ARGS) {
      CTX.geom.tangents = ((Fl_Value_Input*)w)->value();
    }
    
    // Option Mesh Menu
    
    void opt_mesh_cb(CALLBACK_ARGS) {
      WID->create_mesh_options_window();
    }
    void opt_mesh_entity_cb(CALLBACK_ARGS) {
      switch((int)data){
      case 0: CTX.mesh.points = !CTX.mesh.points; break;
      case 1: CTX.mesh.lines = !CTX.mesh.lines; break;
      case 2: CTX.mesh.surfaces = !CTX.mesh.surfaces; break;
      case 3: CTX.mesh.volumes = !CTX.mesh.volumes; break;
      }
    }
    void opt_mesh_num_cb(CALLBACK_ARGS) {
      switch((int)data){
      case 0: CTX.mesh.points_num = !CTX.mesh.points_num; break;
      case 1: CTX.mesh.lines_num = !CTX.mesh.lines_num; break;
      case 2: CTX.mesh.surfaces_num = !CTX.mesh.surfaces_num; break;
      case 3: CTX.mesh.volumes_num = !CTX.mesh.volumes_num; break;
      }
    }
    void opt_mesh_show_by_entity_num_cb(CALLBACK_ARGS) {
      opt_geometry_show_by_entity_num_cb(w,data);
    }
    void opt_mesh_show_by_quality_cb(CALLBACK_ARGS) {
      CTX.mesh.limit_gamma = ((Fl_Value_Input*)w)->value();
    }
    void opt_mesh_normals_cb(CALLBACK_ARGS) {
      CTX.mesh.normals = ((Fl_Value_Input*)w)->value();
    }
    void opt_mesh_degree_cb(CALLBACK_ARGS){
      if(CTX.mesh.degree==2) CTX.mesh.degree = 1;
      else CTX.mesh.degree = 2;
    }
    void opt_mesh_algo_cb(CALLBACK_ARGS){
      if(CTX.mesh.algo==DELAUNAY_OLDALGO) CTX.mesh.algo = DELAUNAY_NEWALGO;
      else CTX.mesh.algo = DELAUNAY_OLDALGO;
    }
    void opt_mesh_smoothing_cb(CALLBACK_ARGS){
      CTX.mesh.nb_smoothing = (int)((Fl_Value_Input*)w)->value();
    }
    void opt_mesh_interactive_cb(CALLBACK_ARGS){
      CTX.mesh.interactive = !CTX.mesh.interactive;
    }
    void opt_mesh_explode_cb(CALLBACK_ARGS){
      CTX.mesh.explode = ((Fl_Value_Input*)w)->value();
    }
    void opt_mesh_aspect_cb(CALLBACK_ARGS){
      switch((int)data){
      case 0 : CTX.mesh.hidden = 0; CTX.mesh.shade = 0; break; 
      case 1 : CTX.mesh.hidden = 1; CTX.mesh.shade = 0; break; 
      case 2 : CTX.mesh.hidden = 1; CTX.mesh.shade = 1; break; 
      }
    }
    
    // Option Post Menu
    
    void opt_post_cb(CALLBACK_ARGS) {
      WID->create_post_options_window();
    }
    void opt_post_link_cb(CALLBACK_ARGS) {
      CTX.post.link = (int)data;
    }
    void opt_post_anim_delay_cb(CALLBACK_ARGS) {
      CTX.post.anim_delay = (long)(1.e6*((Fl_Value_Input*)w)->value());
    }
    
    // Option Statistics Menu
    
    void opt_statistics_cb(CALLBACK_ARGS) {
      WID->create_statistics_window();
    }
    void opt_statistics_update_cb(CALLBACK_ARGS) {
      WID->set_statistics();
    }
    
    // Option Messages Menu
    
    void opt_message_cb(CALLBACK_ARGS) {
      WID->create_message_window();
    }
    void opt_message_save_cb(CALLBACK_ARGS) {
      char *newfile;
      if((newfile = fl_file_chooser("Save Log", "*", NULL)))
        WID->save_message(newfile); 
    }
    
    // Help Menu
    
    void help_short_cb(CALLBACK_ARGS){
      WID->create_help_window();
    }
    void help_about_cb(CALLBACK_ARGS){
      WID->create_about_window();
    }
    
    // Module Menu
    
    void mod_geometry_cb(CALLBACK_ARGS){
      WID->set_context(menu_geometry, 0);
    }
    void mod_mesh_cb(CALLBACK_ARGS){
      WID->set_context(menu_mesh, 0);
    }
    void mod_post_cb(CALLBACK_ARGS){
      WID->set_context(menu_post, 0);
    }
    void mod_back_cb(CALLBACK_ARGS){
      WID->set_context(NULL, -1);
    }
    void mod_forward_cb(CALLBACK_ARGS){
      WID->set_context(NULL, 1);
    }
    
    // Dynamic Geomtry Menus
    
    void geometry_elementary_cb(CALLBACK_ARGS){
      WID->set_context(menu_geometry_elementary, 0);
    }
    void geometry_physical_cb(CALLBACK_ARGS){
      WID->set_context(menu_geometry_physical, 0);
    }
    void geometry_reload_cb(CALLBACK_ARGS){
      OpenProblem(CTX.filename);
      Init();
      Draw();
    } 
    void geometry_elementary_add_cb(CALLBACK_ARGS){
      WID->set_context(menu_geometry_elementary_add, 0);
    }
    void geometry_elementary_add_new_cb(CALLBACK_ARGS){
      WID->set_context(menu_geometry_elementary_add_new, 0);
    }
    void geometry_elementary_add_new_parameter_cb(CALLBACK_ARGS){
      WID->create_geometry_context_window(0);
    }
    void geometry_elementary_add_new_point_cb(CALLBACK_ARGS){
      WID->create_geometry_context_window(1);
    }
    
    static void _new_line_spline(int dim){
      Vertex   *v;
      Curve    *c;
      Surface  *s;
      int      ib;
      static int n, p[100];
    
      n = 0;
      while(1){
        Msg(STATUS3N,"Select Point ('e'=end, 'q'=quit)");
        ib = SelectEntity(ENT_POINT, &v,&c,&s);
        if(ib == 1){ /* left mouse butt */
          p[n++] = v->Num; 
        }
        if (ib == -1){ /* 'e' */
          if(n >= 2) {
    	switch(dim){
    	case 0 : add_multline(n,p,CTX.filename); break;
    	case 1 : add_spline(n,p,CTX.filename); break;
    	}
          }
          n=0;
          ZeroHighlight(&M);
          DrawUpdate();
        }
        if(ib == 0){ /* 'q' */
          n=0 ;
          ZeroHighlight(&M);
          DrawUpdate();
          break;
        }
      }
      Msg(STATUS3N,"Ready");
    }
    
    void geometry_elementary_add_new_line_cb(CALLBACK_ARGS){
      _new_line_spline(0);
    }
    void geometry_elementary_add_new_spline_cb(CALLBACK_ARGS){
      _new_line_spline(1);
    }
    void geometry_elementary_add_new_circle_cb(CALLBACK_ARGS){
      Vertex   *v;
      Curve    *c;
      Surface  *s;
      int      ib;
      static int n, p[100];
    
      n=0;
      while(1){
        if(n == 0) Msg(STATUS3N,"Select Center ('q'=quit)");
        if(n == 1) Msg(STATUS3N,"Select Starting Point ('q'=quit)");
        if(n == 2) Msg(STATUS3N,"Select Ending Point ('q'=quit)");
        ib = SelectEntity(ENT_POINT, &v,&c,&s);
        if(ib == 1) { /* left mouse butt */
          p[n++] = v->Num; 
        }
        if(ib == 0) { /* 'q' */
          n=0 ;
          ZeroHighlight(&M);
          DrawUpdate();
          break;
        }
        if(n == 3){
          add_circ(p[1],p[0],p[2],CTX.filename); /* begin, center, end */
          ZeroHighlight(&M);
          DrawUpdate();
          n=0;
        }
      }
      Msg(STATUS3N,"Ready");
    }
    void geometry_elementary_add_new_ellipsis_cb(CALLBACK_ARGS){
      Vertex   *v;
      Curve    *c;
      Surface  *s;
      int      ib;
      static int n, p[100];
    
      n=0;
      while(1){
        if(n == 0) Msg(STATUS3N,"Select Center ('q'=quit)");
        if(n == 1) Msg(STATUS3N,"Select an Axis Point ('q'=quit)");
        if(n == 2) Msg(STATUS3N,"Select Starting Point ('q'=quit)");
        if(n == 3) Msg(STATUS3N,"Select Ending Point ('q'=quit)");
        ib = SelectEntity(ENT_POINT, &v,&c,&s);
        if(ib == 1) { /* left mouse butt */
          p[n++] = v->Num; 
        }
        if(ib == 0){ /* 'q' */
          n=0 ;
          ZeroHighlight(&M);
          DrawUpdate();
          break;
        }
        if(n == 4){
          add_ell(p[3],p[2],p[0],p[1],CTX.filename);
          ZeroHighlight(&M);
          DrawUpdate();
          n=0;
        }
      }
      Msg(STATUS3N,"Ready");
    }
    
    static void _new_surface_volume(int mode){
      Vertex   *v;
      Curve    *c;
      Surface  *s;
      int      ib, type, zone;
      List_T  *Liste1, *Liste2;
    
      Liste1 = List_Create(10,10,sizeof(int));
      Liste2 = List_Create(10,10,sizeof(int));
      
      if(mode == 2)
        type = ENT_SURFACE;
      else
        type = ENT_LINE;
      
      while(1){      
        List_Reset(Liste1);
        List_Reset(Liste2);
        
        while(1) {        
          Msg(STATUS3N,"Select Boundary ('q'=quit)");
          ib = SelectEntity(type, &v,&c,&s);
          if(ib <= 0){
    	ZeroHighlight(&M);
    	DrawUpdate();
    	goto stopall;
          }       
          if(SelectContour (type, (type==ENT_LINE)?c->Num:s->Num, Liste1)){
    	if(type==ENT_LINE) 
    	  add_loop(Liste1,CTX.filename,&zone);
    	else
    	  add_vol(Liste1,CTX.filename,&zone);
    	List_Reset(Liste1);
    	List_Add(Liste2,&zone);
    	while(1){
    	  Msg(STATUS3N,"Select Holes ('q'=quit)");
    	  ib = SelectEntity(type, &v,&c,&s); 
    	  if(ib <= 0){
    	    ZeroHighlight(&M);
    	    DrawUpdate();
    	    break;
    	  }
    	  if(SelectContour (type, (type==ENT_LINE)?c->Num:s->Num, Liste1)){
    	    if(type==ENT_LINE) 
    	      add_loop(Liste1,CTX.filename,&zone);
    	    else
    	      add_vol(Liste1,CTX.filename,&zone);
    	    List_Reset(Liste1);
    	    List_Add(Liste2,&zone);
    	  }
    	}
    	if(List_Nbr(Liste2)){
    	  switch(mode){
    	  case 0 : add_surf(Liste2,CTX.filename,0,2); break;
    	  case 1 : add_surf(Liste2,CTX.filename,0,1); break;
    	  case 2 : add_multvol(Liste2,CTX.filename); break;
    	  }
    	  ZeroHighlight(&M);
    	  DrawUpdate();
    	  break;
    	}
          }
        }
      }
      stopall : ;
      List_Delete(Liste1);
      List_Delete(Liste2);
      Msg(STATUS3N,"Ready");
    }
    
    void geometry_elementary_add_new_planesurface_cb(CALLBACK_ARGS){
      _new_surface_volume(0);
    }
    void geometry_elementary_add_new_ruledsurface_cb(CALLBACK_ARGS){
      _new_surface_volume(1);
    }
    void geometry_elementary_add_new_volume_cb(CALLBACK_ARGS){
      _new_surface_volume(2);
    }
    
    static void _transform_point_curve_surface(int transfo, int mode, char *what){
      Vertex   *v;
      Curve    *c;
      Surface  *s;
      int type, num;
    
      if(!strcmp(what,"Point")) 
        type = ENT_POINT;
      else if(!strcmp(what,"Line"))
        type = ENT_LINE; 
      else
        type = ENT_SURFACE;
    
      while(1){
        Msg(STATUS3N,"Select %s ('q'=quit)", what);
        if(!SelectEntity(type, &v,&c,&s)){
          ZeroHighlight(&M);
          DrawUpdate();
          break;
        }
        switch(type){
        case ENT_POINT: num = v->Num; break;
        case ENT_LINE: num = c->Num; break;
        case ENT_SURFACE: num = s->Num; break;
        }
        switch(transfo){
        case 0: translate(mode,num,CTX.filename,what); break;
        case 1: rotate(mode,num,CTX.filename,what); break;
        case 2: dilate(mode,num,CTX.filename,what); break;
        case 3: symmetry(mode,num,CTX.filename,what); break;
        case 4: extrude(num,CTX.filename,what); break;
        case 5: protude(num,CTX.filename,what); break;
        case 6: delet(num,CTX.filename,what); break;
        }
        ZeroHighlight(&M);
        DrawUpdate();
      }
      Msg(STATUS3N,"Ready");
    }
    
    void geometry_elementary_add_translate_cb(CALLBACK_ARGS){
      WID->set_context(menu_geometry_elementary_add_translate, 0);
    }
    void geometry_elementary_add_translate_point_cb(CALLBACK_ARGS){
      WID->create_geometry_context_window(2);
      _transform_point_curve_surface(0,1,"Point");
    }
    void geometry_elementary_add_translate_curve_cb(CALLBACK_ARGS){
      WID->create_geometry_context_window(2);
      _transform_point_curve_surface(0,1,"Line");
    }
    void geometry_elementary_add_translate_surface_cb(CALLBACK_ARGS){
      WID->create_geometry_context_window(2);
      _transform_point_curve_surface(0,1,"Surface");
    }
    void geometry_elementary_translate_cb(CALLBACK_ARGS){
      WID->set_context(menu_geometry_elementary_translate, 0);
    }
    void geometry_elementary_translate_point_cb(CALLBACK_ARGS){
      WID->create_geometry_context_window(2);
      _transform_point_curve_surface(0,0,"Point");
    }
    void geometry_elementary_translate_curve_cb(CALLBACK_ARGS){
      WID->create_geometry_context_window(2);
      _transform_point_curve_surface(0,0,"Line");
    }
    void geometry_elementary_translate_surface_cb(CALLBACK_ARGS){
      WID->create_geometry_context_window(2);
      _transform_point_curve_surface(0,0,"Surface");
    }
    
    void geometry_elementary_add_rotate_cb(CALLBACK_ARGS){
      WID->set_context(menu_geometry_elementary_add_rotate, 0);
    }
    void geometry_elementary_add_rotate_point_cb(CALLBACK_ARGS){
      WID->create_geometry_context_window(3);
      _transform_point_curve_surface(1,1,"Point");
    }
    void geometry_elementary_add_rotate_curve_cb(CALLBACK_ARGS){
      WID->create_geometry_context_window(3);
      _transform_point_curve_surface(1,1,"Line");
    }
    void geometry_elementary_add_rotate_surface_cb(CALLBACK_ARGS){
      WID->create_geometry_context_window(3);
      _transform_point_curve_surface(1,1,"Surface");
    }
    void geometry_elementary_rotate_cb(CALLBACK_ARGS){
      WID->set_context(menu_geometry_elementary_rotate, 0);
    }
    void geometry_elementary_rotate_point_cb(CALLBACK_ARGS){
      WID->create_geometry_context_window(3);
      _transform_point_curve_surface(1,0,"Point");
    }
    void geometry_elementary_rotate_curve_cb(CALLBACK_ARGS){
      WID->create_geometry_context_window(3);
      _transform_point_curve_surface(1,0,"Line");
    }
    void geometry_elementary_rotate_surface_cb(CALLBACK_ARGS){
      WID->create_geometry_context_window(3);
      _transform_point_curve_surface(1,0,"Surface");
    }
    
    void geometry_elementary_add_scale_cb(CALLBACK_ARGS){
      WID->set_context(menu_geometry_elementary_add_scale, 0);
    }
    void geometry_elementary_add_scale_point_cb(CALLBACK_ARGS){
      WID->create_geometry_context_window(4);
      _transform_point_curve_surface(2,1,"Point");
    }
    void geometry_elementary_add_scale_curve_cb(CALLBACK_ARGS){
      WID->create_geometry_context_window(4);
      _transform_point_curve_surface(2,1,"Line");
    }
    void geometry_elementary_add_scale_surface_cb(CALLBACK_ARGS){
      WID->create_geometry_context_window(4);
      _transform_point_curve_surface(2,1,"Surface");
    }
    void geometry_elementary_scale_cb(CALLBACK_ARGS){
      WID->set_context(menu_geometry_elementary_scale, 0);
    }
    void geometry_elementary_scale_point_cb(CALLBACK_ARGS){
      WID->create_geometry_context_window(4);
      _transform_point_curve_surface(2,0,"Point");
    }
    void geometry_elementary_scale_curve_cb(CALLBACK_ARGS){
      WID->create_geometry_context_window(4);
      _transform_point_curve_surface(2,0,"Line");
    }
    void geometry_elementary_scale_surface_cb(CALLBACK_ARGS){
      WID->create_geometry_context_window(4);
      _transform_point_curve_surface(2,0,"Surface");
    }
    
    void geometry_elementary_add_symmetry_cb(CALLBACK_ARGS){
      WID->set_context(menu_geometry_elementary_add_symmetry, 0);
    }
    void geometry_elementary_add_symmetry_point_cb(CALLBACK_ARGS){
      WID->create_geometry_context_window(5);
      _transform_point_curve_surface(3,1,"Point");
    }
    void geometry_elementary_add_symmetry_curve_cb(CALLBACK_ARGS){
      WID->create_geometry_context_window(5);
      _transform_point_curve_surface(3,1,"Line");
    }
    void geometry_elementary_add_symmetry_surface_cb(CALLBACK_ARGS){
      WID->create_geometry_context_window(5);
      _transform_point_curve_surface(3,1,"Surface");
    }
    void geometry_elementary_symmetry_cb(CALLBACK_ARGS){
      WID->set_context(menu_geometry_elementary_symmetry, 0);
    }
    void geometry_elementary_symmetry_point_cb(CALLBACK_ARGS){
      WID->create_geometry_context_window(5);
      _transform_point_curve_surface(3,0,"Point");
    }
    void geometry_elementary_symmetry_curve_cb(CALLBACK_ARGS){
      WID->create_geometry_context_window(5);
      _transform_point_curve_surface(3,0,"Line");
    }
    void geometry_elementary_symmetry_surface_cb(CALLBACK_ARGS){
      WID->create_geometry_context_window(5);
      _transform_point_curve_surface(3,0,"Surface");
    }
    
    void geometry_elementary_extrude_cb(CALLBACK_ARGS){
      WID->set_context(menu_geometry_elementary_extrude, 0);
    }
    void geometry_elementary_extrude_translate_cb(CALLBACK_ARGS){
      WID->set_context(menu_geometry_elementary_extrude_translate, 0);
    }
    void geometry_elementary_extrude_translate_point_cb(CALLBACK_ARGS){
      WID->create_geometry_context_window(2);
      _transform_point_curve_surface(4,0,"Point");
    }
    void geometry_elementary_extrude_translate_curve_cb(CALLBACK_ARGS){
      WID->create_geometry_context_window(2);
      _transform_point_curve_surface(4,0,"Line");
    }
    void geometry_elementary_extrude_translate_surface_cb(CALLBACK_ARGS){
      WID->create_geometry_context_window(2);
      _transform_point_curve_surface(4,0,"Surface");
    }
    void geometry_elementary_extrude_rotate_cb(CALLBACK_ARGS){
      WID->set_context(menu_geometry_elementary_extrude_rotate, 0);
    }
    void geometry_elementary_extrude_rotate_point_cb(CALLBACK_ARGS){
      WID->create_geometry_context_window(3);
      _transform_point_curve_surface(5,0,"Point");
    }
    void geometry_elementary_extrude_rotate_curve_cb(CALLBACK_ARGS){
      WID->create_geometry_context_window(3);
      _transform_point_curve_surface(5,0,"Line");
    }
    void geometry_elementary_extrude_rotate_surface_cb(CALLBACK_ARGS){
      WID->create_geometry_context_window(3);
      _transform_point_curve_surface(5,0,"Surface");
    }
    
    void geometry_elementary_delete_cb(CALLBACK_ARGS){
      WID->set_context(menu_geometry_elementary_delete, 0);
    }
    void geometry_elementary_delete_point_cb(CALLBACK_ARGS){
      _transform_point_curve_surface(6,0,"Point");
    }
    void geometry_elementary_delete_curve_cb(CALLBACK_ARGS){
      _transform_point_curve_surface(6,0,"Line");
    }
    void geometry_elementary_delete_surface_cb(CALLBACK_ARGS){
      _transform_point_curve_surface(6,0,"Surface");
    }
    
    static void _add_physical(char *what){
      Vertex   *v;
      Curve    *c;
      Surface  *s;
      int      ib, type, zone;
      List_T  *Liste1;
    
      if(!strcmp(what,"Point")) 
        type = ENT_POINT;
      else if(!strcmp(what,"Line"))
        type = ENT_LINE; 
      else if(!strcmp(what,"Surface"))
        type = ENT_SURFACE;
      else{
        Msg(GERROR, "Interactive Volume Selection not done: "
    	"Please edit the input file manually");
        return;
      }
    
      Liste1 = List_Create(5,5,sizeof(int));
      while(1){
        Msg(STATUS3N,"Select %s ('e'=end, 'q'=quit)", what); 
        ib = SelectEntity(type, &v,&c,&s);
        if(ib == 1){ /* left mouse */
          switch(type){
          case ENT_POINT: List_Add(Liste1, &v->Num); break;
          case ENT_LINE:  List_Add(Liste1, &c->Num); break;
          case ENT_SURFACE:  List_Add(Liste1, &s->Num); break;
          }
        }
        if(ib == -1){ /* end */
          if(List_Nbr(Liste1)){
    	add_physical(Liste1,CTX.filename,type,&zone);
    	List_Reset(Liste1);
    	ZeroHighlight(&M);
    	DrawUpdate();
          }
        }
        if(ib == 0){
          ZeroHighlight(&M);
          DrawUpdate();
          break;
        }
      }
      Msg(STATUS3N,"Ready");
    }
    
    void geometry_physical_add_cb(CALLBACK_ARGS){
      WID->set_context(menu_geometry_physical_add, 0);
    }
    void geometry_physical_add_point_cb (CALLBACK_ARGS){
      _add_physical("Point");
    }
    void geometry_physical_add_curve_cb (CALLBACK_ARGS){
      _add_physical("Line");
    }
    void geometry_physical_add_surface_cb (CALLBACK_ARGS){
      _add_physical("Surface");
    }
    void geometry_physical_add_volume_cb (CALLBACK_ARGS){
      _add_physical("Volume");
    }
    
    // Dynamic Mesh Menus
    
    void mesh_define_cb(CALLBACK_ARGS){
      WID->set_context(menu_mesh_define, 0);
    }
    void mesh_1d_cb(CALLBACK_ARGS){
    #ifdef _USETHREADS
      if(CTX.threads){
        XtSetSensitive(WID.G.Butt[6], 1);
        CTX.mesh.draw = 0; CTX.threads_lock = 1 ; MeshDim = 1 ; 
        pthread_create(&MeshThread, NULL, StartMeshThread, NULL);
      }
      else
    #endif
        mai3d(&M, 1); 
      Init(); 
      Draw();
      Msg(STATUS3N,"Ready");
    }
    void mesh_2d_cb(CALLBACK_ARGS){
    #ifdef _USETHREADS
      if(CTX.threads){
        XtSetSensitive(WID.G.Butt[6], 1);
        CTX.mesh.draw = 0; CTX.threads_lock = 1 ; MeshDim = 2 ; 
        pthread_create(&MeshThread, NULL, StartMeshThread, NULL);
      }
      else
    #endif
        mai3d(&M, 2);
      Init(); 
      Draw();
      Msg(STATUS3N,"Ready");
    } 
    void mesh_3d_cb(CALLBACK_ARGS){
    #ifdef _USETHREADS
      if(CTX.threads){
        XtSetSensitive(WID.G.Butt[6], 1);
        CTX.mesh.draw = 0; CTX.threads_lock = 1 ; MeshDim = 3 ; 
        pthread_create(&MeshThread, NULL, StartMeshThread, NULL);
      }
      else
    #endif
        mai3d(&M, 3); 
      Init(); 
      Draw();
      Msg(STATUS3N,"Ready");
    } 
    void mesh_define_length_cb (CALLBACK_ARGS){
      Vertex   *v;
      Curve    *c;
      Surface  *s;
      int       ib;
      static int n=0, p[100];
    
      WID->create_mesh_context_window(0);
    
      while(1){
        Msg(STATUS3N,"Select Point ('e'=end, 'q'=quit)");
        ib = SelectEntity(ENT_POINT, &v,&c,&s);
        if(ib == 1){ /* left mouse butt */
          p[n++] = v->Num; 
        }
        if (ib == -1){ /* 'e' */
          if(n >= 1) {
    	add_charlength(n,p,CTX.filename); 
    	n=0;
    	ZeroHighlight(&M);
    	DrawUpdate();
    	break;
          }
        }
        if(ib == 0){ /* 'q' */
          n=0 ;
          ZeroHighlight(&M);
          DrawUpdate();
          break;
        }
      }
      Msg(STATUS3N,"Ready");
    }
    void mesh_define_recombine_cb (CALLBACK_ARGS){
      Vertex   *v;
      Curve    *c;
      Surface  *s;
      int      ib;
      static int n, p[100];
    
      n=0;
      while(1){
        Msg(STATUS3N,"Select Surface ('e'=end, 'q'=quit)");
        ib = SelectEntity(ENT_SURFACE, &v,&c,&s);
        if(ib == 1){ /* left mouse butt */
          p[n++] = s->Num; 
        }
        if (ib == -1){ /* 'e' */
          if(n >= 1) {
    	add_recosurf(n,p,CTX.filename); break;
          }
          n=0;
          ZeroHighlight(&M);
          DrawUpdate();
        }
        if(ib == 0){ /* 'q' */
          n=0 ;
          ZeroHighlight(&M);
          DrawUpdate();
          break;
        }
      }
      Msg(STATUS3N, "Ready");
    }
    void mesh_define_transfinite_cb (CALLBACK_ARGS){
      WID->set_context(menu_mesh_define_transfinite, 0);
    } 
    
    static void _add_transfinite(int dim){
      Vertex   *v;
      Curve    *c;
      Surface  *s;
      int      ib;
      static int n, p[100];
    
      n=0;
      while(1){
        switch (dim) {
        case 1 :
          Msg(STATUS3N,"Select Line ('e'=end, 'q'=quit)");
          ib = SelectEntity(ENT_LINE, &v,&c,&s);
          break ;
        case 2 :
          Msg(STATUS3N,"Select Surface ('e'=end, 'q'=quit)");
          ib = SelectEntity(ENT_SURFACE, &v,&c,&s);
          break;
        case 3 :
          ib = 1;
          break;
        }
        if(ib == 1){ /* left mouse butt */
          switch (dim) {    
          case 1 : p[n++] = c->Num ; break ;
          case 2 : p[n++] = s->Num; // fall-through
          case 3 :
    	while(1){
    	  Msg(STATUS3N,"Select Point ('e'=end, 'q'=quit)");
    	  ib = SelectEntity(ENT_POINT, &v,&c,&s);
    	  if(ib == 1){ /* left mouse butt */
    	    p[n++] = v->Num ;
    	  }
    	  if (ib == -1){ /* 'e' */
    	    switch (dim) {    
    	    case 2 :
    	      if(n == 3+1 || n == 4+1)
    		add_trsfsurf(n,p,CTX.filename); 
    	      else
    		Msg(STATUS2, "Wrong Number of Points for Transfinite Surface");
    	      break;
    	    case 3 :
    	      if(n == 6 || n == 8)
    		add_trsfvol(n,p,CTX.filename);
    	      else
    		Msg(STATUS2, "Wrong Number of Points for Transfinite Volume");
    	      break;
    	    }
    	    n=0;
    	    ZeroHighlight(&M);
    	    DrawUpdate();
    	    break;
    	  }
    	  if(ib == 0){ /* 'q' */
    	    n=0 ;
    	    ZeroHighlight(&M);
    	    DrawUpdate();
    	    break;
    	  }
    	}
    	break ;
          }
        }
        if (ib == -1){ /* 'e' */
          if (dim == 1){ 
    	if(n >= 1) add_trsfline(n,p,CTX.filename);
          }
          n=0;
          ZeroHighlight(&M);
          DrawUpdate();
        }
        if(ib == 0){ /* 'q' */
          n=0 ;
          ZeroHighlight(&M);
          DrawUpdate();
          break;
        }
      }
      Msg(STATUS3N, "Ready");
    }
    
    void mesh_define_transfinite_line_cb(CALLBACK_ARGS){
      WID->create_mesh_context_window(1);
      _add_transfinite(1);
    }
    void mesh_define_transfinite_surface_cb(CALLBACK_ARGS){
      _add_transfinite(2);
    }
    void mesh_define_transfinite_volume_cb(CALLBACK_ARGS){
      WID->create_mesh_context_window(2);
      _add_transfinite(3);
    } 
    
    // Dynamic Post Menus
    
    void view_toggle_cb(CALLBACK_ARGS){
      if(!Post_ViewList) return;
    
      Post_View  *v = (Post_View*)List_Pointer(Post_ViewList,(int)data);
    
      Msg(DEBUG1, "View %d", v->Num);
      Msg(DEBUG2, "  -> Name '%s'", v->Name);
      Msg(DEBUG2, "  -> FileName '%s'", v->FileName);
      Msg(DEBUG2, "  -> DuplicateOf %d", v->DuplicateOf);
      Msg(DEBUG3, "  -> Links %d", v->Links);
    
      v->Visible = !v->Visible;
    
      Init();
      Draw();
    }
    
    void view_reload_cb(CALLBACK_ARGS){
      Post_View tmp ;
      char filename[NAME_STR_L];
      extern int Force_ViewNumber;
    
      if(!Post_ViewList) return;
    
      Post_View *v = (Post_View*)List_Pointer(Post_ViewList,(int)data);
      strcpy(filename, v->FileName);
      CopyViewOptions(v, &tmp);
    
      Force_ViewNumber = v->Num ;
      FreeView(v);
      MergeProblem(filename);
      Force_ViewNumber = 0 ;
      
      v = (Post_View*)List_Pointer(Post_ViewList,(int)data);
      CopyViewOptions(&tmp, v);
    
      if(!RELOAD_ALL_VIEWS){
        Init();
        Draw();
      }
    }
    
    void view_remove_cb(CALLBACK_ARGS){
      Post_View *v = (Post_View*)List_Pointer(Post_ViewList,(int)data);
      FreeView(v);
    
      if(!List_Suppress(Post_ViewList, v, fcmpPostViewNum))
        Msg(GERROR, "Could Not Suppress View from List");
    
      CTX.post.nb_views = List_Nbr(Post_ViewList);
    
      if(WID->get_context() == 2)
        WID->set_context(menu_post, 0);  
    
      if(!REMOVE_ALL_VIEWS){
        Init();
        Draw();
      }
    }
    
    void view_duplicate_cb(CALLBACK_ARGS){
      Post_View  v, *v1, *v2, *v3 ;
    
      if(!Post_ViewList) return;
    
      v1 = (Post_View*)List_Pointer(Post_ViewList,(int)data);
    
      BeginView(0);
      EndView(0, 0, v1->FileName, v1->Name, 0., 0., 0.);
    
      v2 = (Post_View*)List_Pointer(Post_ViewList,List_Nbr(Post_ViewList)-1);
    
      if(!v1->DuplicateOf){
        v2->DuplicateOf = v1->Num ;
        v1->Links++ ;
      }
      else{
        v.Num = v1->DuplicateOf ;
        if(!(v3 = (Post_View*)List_PQuery(Post_ViewList, &v, fcmpPostViewNum))){
          v2->DuplicateOf = v1->Num ;
          v1->Links++ ;
        }
        else{
          v2->DuplicateOf = v3->Num;
          v3->Links++ ;
        }
      }
    
      v2->Time = v1->Time;
      v2->NbSP = v1->NbSP; v2->SP = v1->SP; 
      v2->NbVP = v1->NbVP; v2->VP = v1->VP; 
      v2->NbTP = v1->NbTP; v2->TP = v1->TP;
      v2->NbSL = v1->NbSL; v2->SL = v1->SL; 
      v2->NbVL = v1->NbVL; v2->VL = v1->VL; 
      v2->NbTL = v1->NbTL; v2->TL = v1->TL;
      v2->NbST = v1->NbST; v2->ST = v1->ST; 
      v2->NbVT = v1->NbVT; v2->VT = v1->VT; 
      v2->NbTT = v1->NbTT; v2->TT = v1->TT;
      v2->NbSS = v1->NbSS; v2->SS = v1->SS; 
      v2->NbVS = v1->NbVS; v2->VS = v1->VS; 
      v2->NbTS = v1->NbTS; v2->TS = v1->TS;
      v2->ScalarOnly  = v1->ScalarOnly;
      v2->Min         = v1->Min;       
      v2->Max         = v1->Max;      
      v2->NbTimeStep  = v1->NbTimeStep;
    
      CopyViewOptions(v1, v2);
    
      AddViewInUI(List_Nbr(Post_ViewList), v2->Name, v2->Num);
      Init();
      Draw();
    }
    
    void view_lighting_cb(CALLBACK_ARGS){
      Post_View *v = (Post_View*)List_Pointer(Post_ViewList,(int)data);
      v->Light = !v->Light;
      v->Changed = 1;
      Init() ;
      Draw() ;
    }
    void view_elements_cb(CALLBACK_ARGS){
      Post_View *v = (Post_View*)List_Pointer(Post_ViewList,(int)data);
      v->ShowElement = !v->ShowElement;
      v->Changed = 1;
      Init() ;
      Draw() ;
    }
    void view_applybgmesh_cb(CALLBACK_ARGS){
      Post_View *v = (Post_View*)List_Pointer(Post_ViewList,(int)data);
      BGMWithView(v); 
    }
    void view_options_cb(CALLBACK_ARGS){
      WID->create_view_window((int)data);
    }
    
    #define STARTVIEWMOD					\
      Post_View *v;						\
      int i;						\
      for(i=0 ; i<List_Nbr(Post_ViewList) ; i++){		\
        v = (Post_View*)List_Pointer(Post_ViewList, i);	\
        if(CTX.post.link == 2 ||				\
           (CTX.post.link == 1 && v->Visible) ||		\
           (CTX.post.link == 0 && i == (int)data)){
    
    #define ENDVIEWMOD				\
        }						\
      }
    
    void view_options_show_scale_cb(CALLBACK_ARGS){
      STARTVIEWMOD
        v->ShowScale = ((Fl_Check_Button*)w)->value() ;
      ENDVIEWMOD
    }
    void view_options_show_time_cb(CALLBACK_ARGS){
      STARTVIEWMOD
        v->ShowTime = ((Fl_Check_Button*)w)->value() ;
      ENDVIEWMOD
    }
    void view_options_transparent_scale_cb(CALLBACK_ARGS){
      STARTVIEWMOD
        v->TransparentScale = ((Fl_Check_Button*)w)->value() ;
      ENDVIEWMOD
    }
    void view_options_name_cb(CALLBACK_ARGS){
      STARTVIEWMOD
        strcpy(v->Name, ((Fl_Input*)w)->value()) ;
      ENDVIEWMOD
    }
    void view_options_format_cb(CALLBACK_ARGS){
      STARTVIEWMOD
        strcpy(v->Format, ((Fl_Input*)w)->value()) ;
      ENDVIEWMOD
    }
    void view_options_custom_range_cb(CALLBACK_ARGS){
      STARTVIEWMOD
        if(((Fl_Check_Button*)w)->value()){
          WID->activate_custom(1);
          v->RangeType = DRAW_POST_CUSTOM;
        }
        else{
          WID->activate_custom(0);
          v->RangeType = DRAW_POST_DEFAULT;
        }
        v->Changed = 1;
      ENDVIEWMOD
    }
    void view_options_custom_min_cb(CALLBACK_ARGS){
      STARTVIEWMOD
        v->CustomMin = ((Fl_Value_Input*)w)->value() ;
        v->Changed = 1;
      ENDVIEWMOD
    }
    void view_options_custom_max_cb(CALLBACK_ARGS){
      STARTVIEWMOD
        v->CustomMax = ((Fl_Value_Input*)w)->value() ;
        v->Changed = 1;
      ENDVIEWMOD
    }
    void view_options_linear_range_cb(CALLBACK_ARGS){
      STARTVIEWMOD
        if(((Fl_Check_Button*)w)->value()){
          v->ScaleType = DRAW_POST_LINEAR;
        }
        else{
          v->ScaleType = DRAW_POST_LOGARITHMIC;
        }
        v->Changed = 1;
      ENDVIEWMOD
    }
    void view_options_logarithmic_range_cb(CALLBACK_ARGS){
      STARTVIEWMOD
        if(((Fl_Check_Button*)w)->value()){
          v->RangeType = DRAW_POST_LOGARITHMIC;
        }
        else{
          v->RangeType = DRAW_POST_LINEAR;
        }
        v->Changed = 1;
      ENDVIEWMOD
    }
    void view_options_nbiso_cb(CALLBACK_ARGS){
      STARTVIEWMOD
        v->NbIso = (int)((Fl_Value_Input*)w)->value() ;
        v->Changed = 1;
      ENDVIEWMOD
    }
    void view_options_iso_cb(CALLBACK_ARGS){
      STARTVIEWMOD
        if(((Fl_Check_Button*)w)->value()){
          v->IntervalsType = DRAW_POST_ISO;
          v->Changed = 1;
        }
      ENDVIEWMOD
    }
    void view_options_fillediso_cb(CALLBACK_ARGS){
      STARTVIEWMOD
        if(((Fl_Check_Button*)w)->value()){
          v->IntervalsType = DRAW_POST_DISCRETE;
          v->Changed = 1;
        }
      ENDVIEWMOD
    }
    void view_options_continuousiso_cb(CALLBACK_ARGS){
      STARTVIEWMOD
        if(((Fl_Check_Button*)w)->value()){
          v->IntervalsType = DRAW_POST_CONTINUOUS;
          v->Changed = 1;
        }
      ENDVIEWMOD
    }
    void view_options_numericiso_cb(CALLBACK_ARGS){
      STARTVIEWMOD
        if(((Fl_Check_Button*)w)->value()){
          v->IntervalsType = DRAW_POST_NUMERIC;
          v->Changed = 1;
        }
      ENDVIEWMOD
    }
    void view_options_xoffset_cb(CALLBACK_ARGS){
      STARTVIEWMOD
        v->Offset[0] = ((Fl_Value_Input*)w)->value() ;
        v->Changed = 1;
      ENDVIEWMOD
    }
    void view_options_yoffset_cb(CALLBACK_ARGS){
      STARTVIEWMOD
        v->Offset[1] = ((Fl_Value_Input*)w)->value() ;
        v->Changed = 1;
      ENDVIEWMOD
    }
    void view_options_zoffset_cb(CALLBACK_ARGS){
      STARTVIEWMOD
        v->Offset[2] = ((Fl_Value_Input*)w)->value() ;
        v->Changed = 1;
      ENDVIEWMOD
    }
    void view_options_xraise_cb(CALLBACK_ARGS){
      STARTVIEWMOD
        v->Raise[0] = ((Fl_Value_Input*)w)->value() ;
        v->Changed = 1;
      ENDVIEWMOD
    }
    void view_options_yraise_cb(CALLBACK_ARGS){
      STARTVIEWMOD
        v->Raise[1] = ((Fl_Value_Input*)w)->value() ;
        v->Changed = 1;
      ENDVIEWMOD
    }
    void view_options_zraise_cb(CALLBACK_ARGS){
      STARTVIEWMOD
        v->Raise[2] = ((Fl_Value_Input*)w)->value() ;
        v->Changed = 1;
      ENDVIEWMOD
    }
    void view_options_timestep_cb(CALLBACK_ARGS){
      STARTVIEWMOD
        v->TimeStep = (int)((Fl_Value_Input*)w)->value() ;
        v->Changed = 1;
      ENDVIEWMOD
      Init();
      Draw();
    }
    void view_options_vector_line_cb(CALLBACK_ARGS){
      STARTVIEWMOD
        if(((Fl_Check_Button*)w)->value()){
          v->ArrowType = DRAW_POST_SEGMENT;
          v->Changed = 1;
        }
      ENDVIEWMOD
    }
    void view_options_vector_arrow_cb(CALLBACK_ARGS){
      STARTVIEWMOD
        if(((Fl_Check_Button*)w)->value()){
          v->ArrowType = DRAW_POST_ARROW;
          v->Changed = 1;
        }
      ENDVIEWMOD
    }
    void view_options_vector_cone_cb(CALLBACK_ARGS){
      STARTVIEWMOD
        if(((Fl_Check_Button*)w)->value()){
          v->ArrowType = DRAW_POST_CONE;
          v->Changed = 1;
        }
      ENDVIEWMOD
    }
    void view_options_vector_displacement_cb(CALLBACK_ARGS){
      STARTVIEWMOD
        if(((Fl_Check_Button*)w)->value()){
          v->ArrowType = DRAW_POST_DISPLACEMENT;
          v->Changed = 1;
        }
      ENDVIEWMOD
    }
    void view_options_vector_scale_cb(CALLBACK_ARGS){
      STARTVIEWMOD
        v->ArrowScale = ((Fl_Value_Input*)w)->value() ;
        v->Changed = 1;
      ENDVIEWMOD
    }
    void view_options_vector_cog_cb(CALLBACK_ARGS){
      STARTVIEWMOD
        if(((Fl_Check_Button*)w)->value()){
          v->ArrowType = DRAW_POST_LOCATE_COG;
          v->Changed = 1;
        }
      ENDVIEWMOD
    }
    void view_options_vector_vertex_cb(CALLBACK_ARGS){
      STARTVIEWMOD
        if(((Fl_Check_Button*)w)->value()){
          v->ArrowType = DRAW_POST_LOCATE_VERTEX;
          v->Changed = 1;
        }
      ENDVIEWMOD
    }
    
    #undef STARTVIEWMOD
    #undef ENDVIEWMOD
    
    // Contextual windows for geometry
    
    void con_geometry_define_parameter_cb(CALLBACK_ARGS){
      add_param(WID->get_geometry_parameter(0),
    	    WID->get_geometry_parameter(1),
    	    CTX.filename);
    }
    
    void con_geometry_define_point_cb(CALLBACK_ARGS){
     strcpy(x_text, WID->get_geometry_point(0));
     strcpy(y_text, WID->get_geometry_point(1));
     strcpy(z_text, WID->get_geometry_point(2));
     strcpy(l_text, WID->get_geometry_point(3));
     add_point(CTX.filename);
     ZeroHighlight(&M);
     Replot();
    }
    
    void con_geometry_define_translation_cb(CALLBACK_ARGS){
      strcpy(tx_text, WID->get_geometry_translation(0));
      strcpy(ty_text, WID->get_geometry_translation(1));
      strcpy(tz_text, WID->get_geometry_translation(2));
    }
    
    void con_geometry_define_rotation_cb(CALLBACK_ARGS){
      strcpy(px_text, WID->get_geometry_rotation(0));
      strcpy(py_text, WID->get_geometry_rotation(1));
      strcpy(pz_text, WID->get_geometry_rotation(2));
      strcpy(ax_text, WID->get_geometry_rotation(3));
      strcpy(ay_text, WID->get_geometry_rotation(4));
      strcpy(az_text, WID->get_geometry_rotation(5));
      strcpy(angle_text, WID->get_geometry_rotation(6));
    }
    
    void con_geometry_define_scale_cb(CALLBACK_ARGS){
      strcpy(dx_text, WID->get_geometry_scale(0));
      strcpy(dy_text, WID->get_geometry_scale(1));
      strcpy(dz_text, WID->get_geometry_scale(2));
      strcpy(df_text, WID->get_geometry_scale(3));
    }
    
    void con_geometry_define_symmetry_cb(CALLBACK_ARGS){
      strcpy(sa_text, WID->get_geometry_symmetry(0));
      strcpy(sb_text, WID->get_geometry_symmetry(1));
      strcpy(sc_text, WID->get_geometry_symmetry(2));
      strcpy(sd_text, WID->get_geometry_symmetry(3));
    }
    
    
    // Contextual windows for mesh
    
    void con_mesh_define_length_cb(CALLBACK_ARGS){
      strcpy(char_length_text, WID->get_mesh_length());
    }
    
    void con_mesh_define_transfinite_line_cb(CALLBACK_ARGS){
      strcpy(trsf_pts_text, WID->get_mesh_transfinite_line(0));
      strcpy(trsf_type_text, WID->get_mesh_transfinite_line(1));
    }
    
    void con_mesh_define_transfinite_volume_cb(CALLBACK_ARGS){
      strcpy(trsf_vol_text, WID->get_mesh_transfinite_volume());
    }