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AnimationContours.c

/* AnimationContours.c */
/**********************************************************************************************************
Copyright (c) 2002-2007 Abdul-Rahman Allouche. All rights reserved

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
documentation files (the Gabedit), to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software,
and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

  The above copyright notice and this permission notice shall be included in all copies or substantial portions
  of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
************************************************************************************************************/

#include "../../Config.h"
#include <stdlib.h>
#include "GlobalOrb.h"
#include "../Utils/Utils.h"
#include "../Utils/Constantes.h"
#include "../Utils/UtilsInterface.h"
#include "../Utils/Vector3d.h"
#include "../Utils/Transformation.h"
#include "../OpenGL/StatusOrb.h"
#include "../OpenGL/GLArea.h"
#include "../OpenGL/AnimationContours.h"
#include "../OpenGL/ColorMap.h"
#include "../OpenGL/TriangleDraw.h"
#include "../Files/FolderChooser.h"
#include "../Files/GabeditFolderChooser.h"
#include "../Common/Help.h"
#include "../OpenGL/PovrayGL.h"
#include "../OpenGL/Images.h"

static      GtkWidget *WinDlg = NULL;
static      GtkWidget *EntryVelocity = NULL;
static      GtkWidget *EntryNContours = NULL;
static      GtkWidget *EntryMinIsoValue = NULL;
static      GtkWidget *EntryMaxIsoValue = NULL;
static      GtkWidget *LabelNContours = NULL;
static      GtkWidget *LabelMinIso = NULL;
static      GtkWidget *LabelMaxIso = NULL;
static      GtkWidget *PlayButton = NULL;
static      GtkWidget *StopButton = NULL;
static gboolean play = FALSE;

static GtkWidget *buttonCheckFilm = NULL;
static GtkWidget *buttonDirFilm = NULL;
static GtkWidget* comboListFilm = NULL;
static gboolean createFilm = FALSE;
static gint numFileFilm = 0;
static gchar formatFilm[100] = "BMP";

static gdouble velocity = 0.1;
static gint nContours = 10;

static gdouble minIsoValue = 0;
static gdouble maxIsoValue = 0.1;
static gboolean linear = TRUE;

static      GtkWidget *buttonXYPlanes = NULL;
static      GtkWidget *buttonXZPlanes = NULL;
static      GtkWidget *buttonYZPlanes = NULL;
static      GtkWidget* linearButton = NULL;
static      GtkWidget* logButton = NULL;
typedef enum
{
 XYPLANES = 0,
 XZPLANES = 1,
 YZPLANES = 2
} GabEditPlanes;
static GabEditPlanes selectedPlanes = XYPLANES;

/********************************************************************************/
static void animate();
static void stop_animation(GtkWidget *win, gpointer data);
static void play_animation(GtkWidget *win, gpointer data);
/********************************************************************************/
static void setMinMaxIsovalues()
{
      gfloat max;
      gfloat min;
      gint i;
      gint j;
      gint k;

      if(!grid) return;
      max = grid->point[0][0][0].C[3];
      min = grid->point[0][0][0].C[3];
      for(i=0;i<grid->N[0];i++)
      for(j=0;j<grid->N[1];j++)
      for(k=0;k<grid->N[2];k++)
      {
            if(min>grid->point[i][j][k].C[3]) min = grid->point[i][j][k].C[3];
            if(max<grid->point[i][j][k].C[3]) max = grid->point[i][j][k].C[3];
      }
      max = fabs(max);
      minIsoValue = max/20;
      maxIsoValue = max;
}
/********************************************************************************/
static void reset_last_directory(GtkWidget *dirSelector, gpointer data)
{
      gchar* dirname = gabedit_folder_chooser_get_current_folder(GABEDIT_FOLDER_CHOOSER(dirSelector));
      gchar* filename = NULL;

      if(dirname && strlen(dirname)>0)
      {
            if(dirname[strlen(dirname)-1] != G_DIR_SEPARATOR)
                  filename = g_strdup_printf("%s%sdump.txt",dirname,G_DIR_SEPARATOR_S);
            else
                  filename = g_strdup_printf("%sdump.txt",dirname);
      }
      else
      {
            dirname = g_strdup(g_get_home_dir());
            filename = g_strdup_printf("%s%sdump.txt",dirname,G_DIR_SEPARATOR_S);
      }
      if(dirname) g_free(dirname);
      if(filename)
      {
            set_last_directory(filename);
            g_free(filename);
      }
}
/********************************************************************************/
static void set_directory(GtkWidget *win, gpointer data)
{
      GtkWidget *dirSelector;
      dirSelector = selctionOfDir(reset_last_directory, "Set folder", GABEDIT_TYPEWIN_ORB);
      gtk_window_set_modal (GTK_WINDOW (dirSelector), TRUE);
      gtk_window_set_transient_for(GTK_WINDOW(dirSelector),GTK_WINDOW(PrincipalWindow));
      gtk_window_set_transient_for(GTK_WINDOW(dirSelector),GTK_WINDOW(WinDlg));
}
/**********************************************************************************************************/
static void new_plane(gint numPlane, gint numberOfContours, gfloat min, gfloat max, GabEditPlanes type)
{
      gint i;
      gint i0=0;
      gint i1=1;
      gfloat* values = NULL;
      gfloat step = 0;
      gfloat gap = 0;
      
      if(numPlane<0) return;
      if(numberOfContours<1) return;
      switch(type)
      {
            case YZPLANES : i0 = 1;i1 = 2;break; /* plane YZ */
            case XZPLANES : i0 = 0;i1 = 2;break; /* plane XZ */
            case XYPLANES : i0 = 0;i1 = 1;break; /* plane XY */
      }

      values = g_malloc(numberOfContours*sizeof(gfloat));

      if(linear)
      {
            step = (max-min)/(numberOfContours/2);
            for(i=0;i<numberOfContours/2;i++) values[i] = min + i*step;
            for(i=numberOfContours/2;i<numberOfContours;i++) values[i] = -values[i-numberOfContours/2];
      }
      else
      {
            gdouble e = exp(1.0);
            /*
            step = (1.0)/(numberOfContours - 1);
            for(i=0;i<numberOfContours;i++) values[i] = min+(max-min)*log(step*i*(e-1)+1);
            */
            step = (1.0)/(numberOfContours/2);
            for(i=0;i<numberOfContours/2;i++) values[i] = min+(max-min)*log(step*i*(e-1)+1);

            for(i=numberOfContours/2;i<numberOfContours;i++) values[i] = -values[i-numberOfContours/2];
      }
      free_contours_all();
      set_contours_values(numberOfContours, values, i0, i1, numPlane, gap);
}
/********************************************************************************/
static void first_plane()
{
      gint numberOfContours;
      gdouble minIso;
      gdouble maxIso;
      gint numPlane;

      if(!GTK_IS_WIDGET(EntryNContours)) return;
      if(!GTK_IS_WIDGET(EntryMinIsoValue)) return;
      if(!GTK_IS_WIDGET(EntryMaxIsoValue)) return;

      numberOfContours = atoi(gtk_entry_get_text(GTK_ENTRY(EntryNContours)));
      minIso = atof(gtk_entry_get_text(GTK_ENTRY(EntryMinIsoValue)));
      maxIso = atof(gtk_entry_get_text(GTK_ENTRY(EntryMaxIsoValue)));
      numPlane = 0;
      switch(selectedPlanes)
      {
            case YZPLANES : numPlane = grid->N[0]/2; break; /* plane YZ */
            case XZPLANES : numPlane = grid->N[1]/2; break; /* plane XZ */
            case XYPLANES : numPlane = grid->N[2]/2; break; /* plane XY */
      }
      new_plane(numPlane, numberOfContours, minIso, maxIso, selectedPlanes);
      if(this_is_an_object((GtkObject*)GLArea)) glarea_rafresh(GLArea);
}
/********************************************************************************/
static void setColorMap(gfloat min, gfloat max)
{
      GtkWidget* handleBoxColorMap = g_object_get_data(G_OBJECT(PrincipalWindow), "HandleboxColorMapContours");
      ColorMap* colorMap = NULL;

      if(handleBoxColorMap) colorMap = g_object_get_data(G_OBJECT(handleBoxColorMap),"ColorMap");
      if(colorMap)
      {
            gchar* t = NULL;
            GtkWidget* entryLeft  = g_object_get_data(G_OBJECT(handleBoxColorMap), "EntryLeft");
            GtkWidget* entryRight = g_object_get_data(G_OBJECT(handleBoxColorMap), "EntryRight");
            t = g_strdup_printf("%f",min);
            gtk_entry_set_text(GTK_ENTRY(entryLeft),t);
            g_free(t);
            gtk_widget_activate(entryLeft);
            t = g_strdup_printf("%f",max);
            gtk_entry_set_text(GTK_ENTRY(entryRight),t);
            g_free(t);
            gtk_widget_activate(entryRight);
            return;
      }
      if(handleBoxColorMap)
      {
            GtkWidget* entryLeft  = g_object_get_data(G_OBJECT(handleBoxColorMap), "EntryLeft");
            GtkWidget* entryRight = g_object_get_data(G_OBJECT(handleBoxColorMap), "EntryRight");
            GtkWidget* darea      = g_object_get_data(G_OBJECT(handleBoxColorMap), "DrawingArea");
            gchar* t = NULL;

            colorMap = new_colorMap_min_max(min,max);

            g_object_set_data(G_OBJECT(handleBoxColorMap),"ColorMap", colorMap);
            g_object_set_data(G_OBJECT(entryLeft),"ColorMap", colorMap);
            g_object_set_data(G_OBJECT(entryRight),"ColorMap", colorMap);
            g_object_set_data(G_OBJECT(darea),"ColorMap", colorMap);
            t = g_strdup_printf("%f",min);
            gtk_entry_set_text(GTK_ENTRY(entryLeft),t);
            g_free(t);
            t = g_strdup_printf("%f",max);
            gtk_entry_set_text(GTK_ENTRY(entryRight),t);
            g_free(t);
      }
}
/********************************************************************************/
static void resetVelocity(GtkWidget *win, gpointer data)
{
      gdouble velo   = 0;
      gchar* t = NULL;

      if(!GTK_IS_WIDGET(EntryVelocity)) return;
      velo   = atof(gtk_entry_get_text(GTK_ENTRY(EntryVelocity)));
      if(velo<0)
      {
            velo = -velo;
            t = g_strdup_printf("%f",velo);
            gtk_entry_set_text(GTK_ENTRY(EntryVelocity),t);
            g_free(t);
      }
      velocity = velo;
      if(!play) stop_animation(NULL,NULL);
}
/********************************************************************************/
static void resetNumberOfContours(GtkWidget *win, gpointer data)
{
      gint nC     = 0;
      gchar* t = NULL;
      gboolean reBuild = FALSE;

      if(!GTK_IS_WIDGET(EntryNContours)) return;
      nC     = atoi(gtk_entry_get_text(GTK_ENTRY(EntryNContours)));
      if(nC<=1)
      {
            nC = 10;
            t = g_strdup_printf("%d",nC);
            gtk_entry_set_text(GTK_ENTRY(EntryNContours),t);
            g_free(t);
      }
      if(nC%2!=0)
      {
            nC = nC/2*2;
            if(nC==0) nC = 2;
            t = g_strdup_printf("%d",nC);
            gtk_entry_set_text(GTK_ENTRY(EntryNContours),t);
            g_free(t);
      }
      if(nContours != nC) reBuild = TRUE;
      nContours = nC;
      if(!play) stop_animation(NULL,NULL);
      if(!win && reBuild) first_plane();
}
/********************************************************************************/
static void resetIsoValues(GtkWidget *win, gpointer data)
{
      gdouble minIso = 0;
      gdouble maxIso = 0;
      gboolean reBuild = FALSE;
      gchar t[BSIZE];

      if(!GTK_IS_WIDGET(EntryMinIsoValue)) return;
      if(!GTK_IS_WIDGET(EntryMaxIsoValue)) return;

      minIso = atof(gtk_entry_get_text(GTK_ENTRY(EntryMinIsoValue)));
      maxIso = atof(gtk_entry_get_text(GTK_ENTRY(EntryMaxIsoValue)));


      if(minIsoValue != minIso) reBuild = TRUE;

      if(minIso<0)
      {
            minIso = 0;
            sprintf(t,"%f",minIso);
            gtk_entry_set_text(GTK_ENTRY(EntryMinIsoValue),t);
      }
      if(minIsoValue != minIso) reBuild = TRUE;
      minIsoValue = minIso;

      if(maxIso<minIsoValue)
      {
            maxIso = minIso + 2*fabs(minIso);
            sprintf(t,"%f",maxIso);
            gtk_entry_set_text(GTK_ENTRY(EntryMaxIsoValue),t);
      }
      if(maxIsoValue != maxIso) reBuild = TRUE;
      maxIsoValue = maxIso;
      if(reBuild) setColorMap(-maxIsoValue, maxIsoValue);
      if(!play) stop_animation(NULL,NULL);
      if(!win && reBuild ) first_plane();

}
/********************************************************************************/
static void resetAllParameters(GtkWidget *win, gpointer data)
{
      resetVelocity(win, data);
      resetNumberOfContours(win, data);
      resetIsoValues(win, data);
}
/********************************************************************************/
static void play_animation(GtkWidget *win, gpointer data)
{
      play = TRUE;
      gtk_widget_set_sensitive(PlayButton, FALSE); 
      gtk_widget_set_sensitive(StopButton, TRUE); 
      gtk_window_set_modal (GTK_WINDOW (WinDlg), TRUE);
      animate();

}
/********************************************************************************/
static void stop_animation(GtkWidget *win, gpointer data)
{
      play = FALSE;
      if(GTK_IS_WIDGET(PlayButton)) gtk_widget_set_sensitive(PlayButton, TRUE); 

      if(GTK_IS_WIDGET(StopButton)) gtk_widget_set_sensitive(StopButton, FALSE); 

      if(GTK_IS_WIDGET(WinDlg)) gtk_window_set_modal (GTK_WINDOW (WinDlg), FALSE);

      while( gtk_events_pending() )
            gtk_main_iteration();

      if(this_is_an_object((GtkObject*)GLArea))
            glarea_rafresh(GLArea);
      setAnimateContours(FALSE);
}
/********************************************************************************/
static void initAnimationDlg()
{
      createFilm = FALSE;
      numFileFilm = 0;
      WinDlg = NULL;
      buttonXYPlanes = NULL;
      buttonXZPlanes = NULL;
      buttonYZPlanes = NULL;
      linearButton = NULL;
      logButton = NULL;
      EntryVelocity = NULL;
      EntryNContours = NULL;
      EntryMinIsoValue = NULL;
      EntryMaxIsoValue = NULL;
}
/********************************************************************************/
static void destroyAnimationDlg(GtkWidget *win)
{
      createFilm = FALSE;
      numFileFilm = 0;

      free_contours_all();
      stop_animation(NULL, NULL);
      gtk_widget_destroy(WinDlg);
      WinDlg = NULL;
      buttonXYPlanes = NULL;
      buttonXZPlanes = NULL;
      buttonYZPlanes = NULL;
      linearButton = NULL;
      logButton = NULL;
}
/********************************************************************************/
static void buttonPlanesSelected(GtkWidget *widget)
{
      if(GTK_IS_WIDGET(buttonXYPlanes) && GTK_TOGGLE_BUTTON (buttonXYPlanes)->active) selectedPlanes = XYPLANES;
      if(GTK_IS_WIDGET(buttonXZPlanes) && GTK_TOGGLE_BUTTON (buttonXZPlanes)->active) selectedPlanes = XZPLANES;
      if(GTK_IS_WIDGET(buttonYZPlanes) && GTK_TOGGLE_BUTTON (buttonYZPlanes)->active) selectedPlanes = YZPLANES;
      first_plane();

}
/********************************************************************************/
static void addPlanesButtons(GtkWidget* box)
{
      GtkWidget *table;
      gint i;
      GtkWidget *separator;

      table = gtk_table_new(3,3,FALSE);
      gtk_box_pack_start_defaults(GTK_BOX(box), table);

      i = 0;
      buttonYZPlanes = gtk_radio_button_new_with_label( NULL,"First direction" );
      gtk_table_attach(GTK_TABLE(table),buttonYZPlanes,0,3,i,i+1,
              (GtkAttachOptions)(GTK_FILL | GTK_EXPAND) ,
              (GtkAttachOptions)(GTK_FILL | GTK_EXPAND),
              3,3);

      i++;
      buttonXZPlanes = gtk_radio_button_new_with_label( gtk_radio_button_get_group (GTK_RADIO_BUTTON (buttonYZPlanes)), "Second direction"); 
      gtk_table_attach(GTK_TABLE(table),buttonXZPlanes,0,3,i,i+1,
              (GtkAttachOptions)(GTK_FILL | GTK_EXPAND) ,
              (GtkAttachOptions)(GTK_FILL | GTK_EXPAND),
              3,3);
      i++;
      buttonXYPlanes = gtk_radio_button_new_with_label( gtk_radio_button_get_group (GTK_RADIO_BUTTON (buttonYZPlanes)), "Third direction"); 
      gtk_table_attach(GTK_TABLE(table),buttonXYPlanes,0,3,i,i+1,
              (GtkAttachOptions)(GTK_FILL | GTK_EXPAND) ,
              (GtkAttachOptions)(GTK_FILL | GTK_EXPAND),
              3,3);
      g_signal_connect (G_OBJECT(buttonXYPlanes), "toggled", GTK_SIGNAL_FUNC (buttonPlanesSelected), NULL);  
      g_signal_connect (G_OBJECT(buttonXZPlanes), "toggled", GTK_SIGNAL_FUNC (buttonPlanesSelected), NULL);  
      g_signal_connect (G_OBJECT(buttonYZPlanes), "toggled", GTK_SIGNAL_FUNC (buttonPlanesSelected), NULL);  
      switch(selectedPlanes)
      {
            case XYPLANES : 
            gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (buttonXYPlanes), TRUE);
            break;
            case XZPLANES : 
            gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (buttonXZPlanes), TRUE);
            break;
            case YZPLANES : 
            gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (buttonYZPlanes), TRUE);
            break;
      }

      i++;
      separator = gtk_hseparator_new();
      gtk_table_attach(GTK_TABLE(table),separator,0,3,i,i+1,
              (GtkAttachOptions)(GTK_FILL | GTK_EXPAND) ,
              (GtkAttachOptions)(GTK_FILL | GTK_EXPAND),
              3,3);
}
/********************************************************************************/
static void linearSelected(GtkWidget *widget)
{
      linear = TRUE;
      first_plane();
}
/********************************************************************************/
static void logSelected(GtkWidget *widget)
{
      linear = FALSE;
      first_plane();
}
/********************************************************************************/
static gchar* get_format_image_from_option()
{
      if(strcmp(formatFilm,"BMP")==0) return "bmp";
      if(strcmp(formatFilm,"PPM")==0) return "ppm";
      if(strcmp(formatFilm,"PNG")==0) return "png";
      if(strcmp(formatFilm,"JPEG")==0) return "jpg";
      if(strcmp(formatFilm,"PNG transparent")==0) return "png";
      if(strcmp(formatFilm,"Povray")==0) return "pov";
      return "UNK";
}
/********************************************************************************/
static void filmSelected(GtkWidget *widget)
{
      if(GTK_IS_WIDGET(buttonCheckFilm)&& GTK_TOGGLE_BUTTON (buttonCheckFilm)->active)
      {
            createFilm = TRUE;
            if(GTK_IS_WIDGET(buttonDirFilm))  gtk_widget_set_sensitive(buttonDirFilm, TRUE);
            if(GTK_IS_WIDGET(comboListFilm))  gtk_widget_set_sensitive(comboListFilm, TRUE);
      }
      else
      {
            createFilm = FALSE;
            if(GTK_IS_WIDGET(buttonDirFilm))  gtk_widget_set_sensitive(buttonDirFilm, FALSE);
            if(GTK_IS_WIDGET(comboListFilm))  gtk_widget_set_sensitive(comboListFilm, FALSE);
      }
}
/********************************************************************************/
static void showMessageEnd()
{
      gchar* format =get_format_image_from_option();
      gchar* message = messageAnimatedImage(format);
      gchar* t = g_strdup_printf("\nA series of gab*.%s files was created in \"%s\" directeory.\n\n\n%s" , format, get_last_directory(),message);
      GtkWidget* winDlg = Message(t,"Info",TRUE);
      g_free(message);
      gtk_window_set_modal (GTK_WINDOW (winDlg), TRUE);
      g_free(t);
}
/********************************************************************************/
static void unActivateFilm()
{
      createFilm = FALSE;
      numFileFilm = 0;
      gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (buttonCheckFilm), FALSE);
      if(GTK_IS_WIDGET(buttonDirFilm))  gtk_widget_set_sensitive(buttonDirFilm, FALSE);
      if(GTK_IS_WIDGET(comboListFilm))  gtk_widget_set_sensitive(comboListFilm, FALSE);
}
/********************************************************************************************************/
static void set_format_film(GtkComboBox *combobox, gpointer d)
{
      GtkTreeIter iter;
      gchar* data = NULL;
      if (gtk_combo_box_get_active_iter (combobox, &iter))
      {
            GtkTreeModel* model = gtk_combo_box_get_model(combobox);
            gtk_tree_model_get (model, &iter, 0, &data, -1);
      }
      if(!data) return;
      sprintf(formatFilm ,"%s",(gchar*)data);
}
/********************************************************************************************************/
static GtkWidget *create_list_of_formats()
{
        GtkTreeIter iter;
        GtkListStore *store;
      GtkTreeModel *model;
      GtkWidget *combobox;
      GtkCellRenderer *renderer;
      gint i;
      gint k;
      gchar* options[] = {"BMP","PPM", "JPEG", "PNG", "PNG transparent", "Povray"};
      guint numberOfElements = G_N_ELEMENTS (options);


      k = 0;
      store = gtk_list_store_new (1,G_TYPE_STRING);
      for(i=0;i<numberOfElements; i++)
      {
            gtk_list_store_append (store, &iter);
            gtk_list_store_set (store, &iter, 0, options[i], -1);
            if(strcmp(options[i],formatFilm)==0) k = i;
      }

        model = GTK_TREE_MODEL (store);
      combobox = gtk_combo_box_new_with_model (model);
      g_object_unref (model);
      g_signal_connect (G_OBJECT(combobox), "changed", G_CALLBACK(set_format_film), NULL);
      renderer = gtk_cell_renderer_text_new ();
      gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (combobox), renderer, TRUE);
      gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (combobox), renderer, "text", 0, NULL);
      gtk_combo_box_set_active(GTK_COMBO_BOX (combobox), k);
      return combobox;
}
/********************************************************************************/
static void addEntrysButtons(GtkWidget* box)
{
      GtkWidget *Button;
      GtkWidget *frame;
      GtkWidget *vboxframe;
      GtkWidget *table;
      gchar t[BSIZE];
      gint i;
      GtkWidget *separator;
      GtkWidget* formatBox;

      frame = gtk_frame_new (NULL);
      gtk_frame_set_shadow_type( GTK_FRAME(frame),GTK_SHADOW_ETCHED_OUT);
      gtk_container_set_border_width (GTK_CONTAINER (frame), 10);
      gtk_box_pack_start_defaults(GTK_BOX(box), frame);
      gtk_widget_show (frame);

      vboxframe = create_vbox(frame);

      addPlanesButtons(vboxframe);

      table = gtk_table_new(12,3,FALSE);
      gtk_box_pack_start_defaults(GTK_BOX(vboxframe), table);

      i = 0;
      LabelMinIso = add_label_table(table," Min isovalue ",(gushort)i,0);
      add_label_table(table," : ",(gushort)i,1); 
      EntryMinIsoValue = gtk_entry_new();
      gtk_table_attach(GTK_TABLE(table),EntryMinIsoValue,2,2+1,i,i+1,
              (GtkAttachOptions)(GTK_FILL | GTK_EXPAND) ,
              (GtkAttachOptions)(GTK_FILL | GTK_EXPAND),
              3,3);
      gtk_editable_set_editable((GtkEditable*) EntryMinIsoValue,TRUE);
      sprintf(t,"%f",minIsoValue);
      gtk_entry_set_text(GTK_ENTRY(EntryMinIsoValue),t);

      i++;
      LabelMaxIso = add_label_table(table," Max isovalue ",(gushort)i,0);
      add_label_table(table," : ",(gushort)i,1); 
      EntryMaxIsoValue = gtk_entry_new();
      gtk_table_attach(GTK_TABLE(table),EntryMaxIsoValue,2,2+1,i,i+1,
              (GtkAttachOptions)(GTK_FILL | GTK_EXPAND) ,
              (GtkAttachOptions)(GTK_FILL | GTK_EXPAND),
              3,3);
      gtk_editable_set_editable((GtkEditable*) EntryMaxIsoValue,TRUE);
      sprintf(t,"%f",maxIsoValue);
      gtk_entry_set_text(GTK_ENTRY(EntryMaxIsoValue),t);

      i++;
      add_label_table(table," Time step(s) ",(gushort)i,0);
      add_label_table(table," : ",(gushort)i,1); 
      EntryVelocity = gtk_entry_new();
      gtk_table_attach(GTK_TABLE(table),EntryVelocity,2,2+1,i,i+1,
              (GtkAttachOptions)(GTK_FILL | GTK_EXPAND) ,
              (GtkAttachOptions)(GTK_FILL | GTK_EXPAND),
              3,3);
      gtk_editable_set_editable((GtkEditable*) EntryVelocity,TRUE);
      sprintf(t,"%f",velocity);
      gtk_entry_set_text(GTK_ENTRY(EntryVelocity),t);

      i++;
      LabelNContours = add_label_table(table," Number of Contours ",(gushort)i,0);
      add_label_table(table," : ",(gushort)i,1); 
      EntryNContours = gtk_entry_new();
      gtk_table_attach(GTK_TABLE(table),EntryNContours,2,2+1,i,i+1,
              (GtkAttachOptions)(GTK_FILL | GTK_EXPAND) ,
              (GtkAttachOptions)(GTK_FILL | GTK_EXPAND),
              3,3);
      gtk_editable_set_editable((GtkEditable*) EntryNContours,TRUE);
      sprintf(t,"%d",nContours);
      gtk_entry_set_text(GTK_ENTRY(EntryNContours),t);

      i++;
      linearButton = gtk_radio_button_new_with_label( NULL,"Linear scale");
      add_widget_table(table, linearButton,(gushort)i,0);
      logButton = gtk_radio_button_new_with_label( NULL,"logarithm scale");
      logButton = gtk_radio_button_new_with_label( gtk_radio_button_get_group (GTK_RADIO_BUTTON (linearButton)), "logarithmic scale"); 
      gtk_table_attach(GTK_TABLE(table), logButton,1,3,i,i+1,
              (GtkAttachOptions)(GTK_FILL | GTK_EXPAND) ,
              (GtkAttachOptions)(GTK_FILL | GTK_EXPAND),
              3,3);
      g_signal_connect (G_OBJECT(linearButton), "toggled", GTK_SIGNAL_FUNC (linearSelected), NULL);  
      g_signal_connect (G_OBJECT(logButton), "toggled", GTK_SIGNAL_FUNC (logSelected), NULL);  

      if(linear)
      {
            gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (linearButton), TRUE);
            gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (logButton), FALSE);
      }
      else
      {
            gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (linearButton), FALSE);
            gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (logButton), TRUE);
      }


      i++;
      separator = gtk_hseparator_new();
      gtk_table_attach(GTK_TABLE(table),separator,0,3,i,i+1,
              (GtkAttachOptions)(GTK_FILL | GTK_EXPAND) ,
              (GtkAttachOptions)(GTK_FILL | GTK_EXPAND),
              3,3);

      i++;
      buttonCheckFilm = gtk_check_button_new_with_label ("Create a film");
      createFilm = FALSE;
      numFileFilm = 0;
      gtk_table_attach(GTK_TABLE(table),buttonCheckFilm,0,1,i,i+1,
              (GtkAttachOptions)(GTK_FILL | GTK_EXPAND) ,
              (GtkAttachOptions)(GTK_FILL | GTK_EXPAND),
              1,1);
      g_signal_connect (G_OBJECT(buttonCheckFilm), "toggled", GTK_SIGNAL_FUNC (filmSelected), NULL);  

      formatBox = create_list_of_formats();
      gtk_table_attach(GTK_TABLE(table),formatBox,1,1+1,i,i+1,
              (GtkAttachOptions)(GTK_FILL | GTK_EXPAND) ,
              (GtkAttachOptions)(GTK_FILL | GTK_EXPAND),
              1,1);

      buttonDirFilm = create_button(WinDlg,"Folder");
      gtk_table_attach(GTK_TABLE(table),buttonDirFilm,2,2+1,i,i+1,
              (GtkAttachOptions)(GTK_FILL | GTK_EXPAND) ,
              (GtkAttachOptions)(GTK_FILL | GTK_EXPAND),
              1,1);
      g_signal_connect(G_OBJECT(buttonDirFilm), "clicked",(GtkSignalFunc)set_directory,NULL);
      comboListFilm = formatBox;

      if(GTK_IS_WIDGET(buttonDirFilm))  gtk_widget_set_sensitive(buttonDirFilm, FALSE);
      if(GTK_IS_WIDGET(comboListFilm))  gtk_widget_set_sensitive(comboListFilm, FALSE);
      gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (buttonCheckFilm), FALSE);


      i++;
      separator = gtk_hseparator_new();
      gtk_table_attach(GTK_TABLE(table),separator,0,3,i,i+1,
              (GtkAttachOptions)(GTK_FILL | GTK_EXPAND) ,
              (GtkAttachOptions)(GTK_FILL | GTK_EXPAND),
              3,3);


      table = gtk_table_new(1,2,TRUE);
      gtk_box_pack_start (GTK_BOX (vboxframe), table, TRUE, TRUE, 0);
      i=0;
      Button = create_button(WinDlg,"Play");
      gtk_table_attach(GTK_TABLE(table),Button,0,0+1,i,i+1,
              (GtkAttachOptions)(GTK_FILL | GTK_EXPAND) ,
              (GtkAttachOptions)(GTK_FILL | GTK_EXPAND),
              3,3);
      PlayButton = Button;

      Button = create_button(WinDlg,"Stop");
      gtk_table_attach(GTK_TABLE(table),Button,1,1+1,i,i+1,
              (GtkAttachOptions)(GTK_FILL | GTK_EXPAND) ,
              (GtkAttachOptions)(GTK_FILL | GTK_EXPAND),
              3,3);
      StopButton = Button;

      g_signal_connect(G_OBJECT(PlayButton), "clicked",(GtkSignalFunc)play_animation,NULL);
      g_signal_connect(G_OBJECT(StopButton), "clicked",(GtkSignalFunc)stop_animation,NULL);
      g_signal_connect_swapped(G_OBJECT (EntryVelocity), "activate", (GtkSignalFunc)resetVelocity, NULL);
      g_signal_connect_swapped(G_OBJECT (EntryNContours), "activate", (GtkSignalFunc)resetNumberOfContours, NULL);
      g_signal_connect_swapped(G_OBJECT (EntryMinIsoValue), "activate", (GtkSignalFunc)resetIsoValues, NULL);
      g_signal_connect_swapped(G_OBJECT (EntryMaxIsoValue), "activate", (GtkSignalFunc)resetIsoValues, NULL);
}
/*****************************************************************************/
static gboolean createImagesFile()
{
      gchar* message = NULL;
      gchar* t;
      gchar* format;
      if(!createFilm)
      {
            setTextInProgress(" ");
            return FALSE;
      }
      format =get_format_image_from_option();
      t = g_strdup_printf("The %s%sgab%d.%s file was created", get_last_directory(),G_DIR_SEPARATOR_S,numFileFilm, format);

      if(!strcmp(formatFilm,"BMP")) message = new_bmp(get_last_directory(), ++numFileFilm);
      if(!strcmp(formatFilm,"PPM")) message = new_ppm(get_last_directory(), ++numFileFilm);
      if(!strcmp(formatFilm,"JPEG")) message = new_jpeg(get_last_directory(), ++numFileFilm);
      if(!strcmp(formatFilm,"PNG")) message = new_png(get_last_directory(), ++numFileFilm);
      if(!strcmp(formatFilm,"Povray")) message = new_pov(get_last_directory(), ++numFileFilm);
      if(!strcmp(formatFilm,"PNG transparent")) message = new_png_nobackground(get_last_directory(), ++numFileFilm);

      if(message == NULL) setTextInProgress(t);
      else
      {
            GtkWidget* m;
            createFilm = FALSE;
            numFileFilm = 0;
            m = Message(message,"Error",TRUE);
            gtk_window_set_modal (GTK_WINDOW (m), TRUE);
      }
      g_free(t);
      return TRUE;
}
/********************************************************************************/
static void animate()
{

      gboolean aller = TRUE;
      gint numPlane;
      gint numberOfContours;
      gdouble minIso;
      gdouble maxIso;
      gint iMax = 0;

      if(!GTK_IS_WIDGET(EntryNContours)) return;
      if(!GTK_IS_WIDGET(EntryMinIsoValue)) return;
      if(!GTK_IS_WIDGET(EntryMaxIsoValue)) return;

      resetAllParameters(EntryNContours,NULL);

      numberOfContours = atoi(gtk_entry_get_text(GTK_ENTRY(EntryNContours)));
      minIso = atof(gtk_entry_get_text(GTK_ENTRY(EntryMinIsoValue)));
      maxIso = atof(gtk_entry_get_text(GTK_ENTRY(EntryMaxIsoValue)));
      iMax = 0;
      switch(selectedPlanes)
      {
            case YZPLANES : iMax = grid->N[0]-1; break; /* planes YZ */
            case XZPLANES : iMax = grid->N[1]-1; break; /* planes XZ */
            case XYPLANES : iMax = grid->N[2]-1; break; /* planes XY */
      }

      numFileFilm = 0;

      if(GTK_IS_WIDGET(buttonCheckFilm)) gtk_widget_set_sensitive(buttonCheckFilm, FALSE);
      if(GTK_IS_WIDGET(comboListFilm)) gtk_widget_set_sensitive(comboListFilm, FALSE);
      if(GTK_IS_WIDGET(buttonDirFilm))  gtk_widget_set_sensitive(buttonDirFilm, FALSE);

      if(GTK_IS_WIDGET(EntryNContours)) gtk_widget_set_sensitive(EntryNContours, FALSE);
      if(GTK_IS_WIDGET(LabelNContours)) gtk_widget_set_sensitive(LabelNContours, FALSE);
      if(GTK_IS_WIDGET(LabelMinIso)) gtk_widget_set_sensitive(LabelMinIso, FALSE);
      if(GTK_IS_WIDGET(LabelMaxIso)) gtk_widget_set_sensitive(LabelMaxIso, FALSE);
      if(GTK_IS_WIDGET(EntryMinIsoValue)) gtk_widget_set_sensitive(EntryMinIsoValue, FALSE);
      if(GTK_IS_WIDGET(EntryMaxIsoValue)) gtk_widget_set_sensitive(EntryMaxIsoValue, FALSE);

      if(GTK_IS_WIDGET(buttonXYPlanes)) gtk_widget_set_sensitive(buttonXYPlanes, FALSE);
      if(GTK_IS_WIDGET(buttonXZPlanes)) gtk_widget_set_sensitive(buttonXZPlanes, FALSE);
      if(GTK_IS_WIDGET(buttonYZPlanes)) gtk_widget_set_sensitive(buttonYZPlanes, FALSE);
      if(GTK_IS_WIDGET(linearButton)) gtk_widget_set_sensitive(linearButton, FALSE);
      if(GTK_IS_WIDGET(logButton)) gtk_widget_set_sensitive(logButton, FALSE);

      numPlane = 0;
      setAnimateContours(TRUE);
      while(play)
      {
            new_plane(numPlane, numberOfContours,  minIso,  maxIso,  selectedPlanes);
            while( gtk_events_pending() ) gtk_main_iteration();
            glarea_rafresh(GLArea);
            createImagesFile();
            Waiting(velocity);
            if(aller) numPlane++;
            else numPlane--;
      
            if(numPlane==iMax)
            {
                  aller = FALSE;
            }
            if(numPlane==0)
            {
                  aller = TRUE;
                  if(numFileFilm>0) showMessageEnd();
                  unActivateFilm();
                  while( gtk_events_pending() ) gtk_main_iteration();
            }
      }

      if(numFileFilm>0) showMessageEnd();
      unActivateFilm();

      if(GTK_IS_WIDGET(buttonCheckFilm)) gtk_widget_set_sensitive(buttonCheckFilm, TRUE);
      if(GTK_IS_WIDGET(comboListFilm)) gtk_widget_set_sensitive(comboListFilm, FALSE);
      if(GTK_IS_WIDGET(buttonDirFilm))  gtk_widget_set_sensitive(buttonDirFilm, FALSE);

      if(GTK_IS_WIDGET(EntryNContours)) gtk_widget_set_sensitive(EntryNContours, TRUE);
      if(GTK_IS_WIDGET(LabelNContours)) gtk_widget_set_sensitive(LabelNContours, TRUE);
      if(GTK_IS_WIDGET(LabelMinIso)) gtk_widget_set_sensitive(LabelMinIso, TRUE);
      if(GTK_IS_WIDGET(LabelMaxIso)) gtk_widget_set_sensitive(LabelMaxIso, TRUE);
      if(GTK_IS_WIDGET(EntryMinIsoValue)) gtk_widget_set_sensitive(EntryMinIsoValue, TRUE);
      if(GTK_IS_WIDGET(EntryMaxIsoValue)) gtk_widget_set_sensitive(EntryMaxIsoValue, TRUE);

      if(GTK_IS_WIDGET(buttonXYPlanes)) gtk_widget_set_sensitive(buttonXYPlanes, TRUE);
      if(GTK_IS_WIDGET(buttonXZPlanes)) gtk_widget_set_sensitive(buttonXZPlanes, TRUE);
      if(GTK_IS_WIDGET(buttonYZPlanes)) gtk_widget_set_sensitive(buttonYZPlanes, TRUE);
      if(GTK_IS_WIDGET(linearButton)) gtk_widget_set_sensitive(linearButton, TRUE);
      if(GTK_IS_WIDGET(logButton)) gtk_widget_set_sensitive(logButton, TRUE);
      setAnimateContours(FALSE);
      stop_animation(NULL, NULL);
      first_plane();
}
/********************************************************************************/
void animationContoursDlg()
{
      GtkWidget *Win;
      GtkWidget *vbox;
      GtkWidget *hbox;
      GtkWidget *parentWindow = PrincipalWindow;

      if(WinDlg)
            return;
      if(!grid )
      {
            if( !CancelCalcul) Message("Sorry, Grid not define ","Error",TRUE);
            return;
      }
      initAnimationDlg();

      Win= gtk_window_new(GTK_WINDOW_TOPLEVEL);
      gtk_window_set_position(GTK_WINDOW(Win),GTK_WIN_POS_CENTER);
      gtk_window_set_transient_for(GTK_WINDOW(Win),GTK_WINDOW(parentWindow));
      gtk_window_set_title(GTK_WINDOW(Win),"contours animation");
      gtk_window_set_modal (GTK_WINDOW (Win), TRUE);

      WinDlg = Win;

      add_child(PrincipalWindow,Win,destroyAnimationDlg,"Anim. Cont.");
      g_signal_connect(G_OBJECT(Win),"delete_event",(GtkSignalFunc)delete_child,NULL);

      vbox = gtk_vbox_new (FALSE, 0);
      gtk_widget_show (vbox);
      gtk_container_add (GTK_CONTAINER (Win), vbox);
      hbox = create_hbox_false(vbox);
      gtk_widget_realize(Win);

      setMinMaxIsovalues();
      addEntrysButtons(vbox);
      gtk_widget_show_all(vbox);

      gtk_widget_show_now(Win);
      fit_windows_position(PrincipalWindow, Win);

      stop_animation(NULL, NULL);
      first_plane();
}

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