after memleak fix : control flow view
authorcompudj <compudj@04897980-b3bd-0310-b5e0-8ef037075253>
Sun, 28 Aug 2005 19:35:10 +0000 (19:35 +0000)
committercompudj <compudj@04897980-b3bd-0310-b5e0-8ef037075253>
Sun, 28 Aug 2005 19:35:10 +0000 (19:35 +0000)
git-svn-id: http://ltt.polymtl.ca/svn@1089 04897980-b3bd-0310-b5e0-8ef037075253

ltt/branches/poly/lttv/modules/gui/controlflow/drawing.c
ltt/branches/poly/lttv/modules/gui/controlflow/eventhooks.c

index 0def3154315b7593cc27922b77c3fbeed0775eed..ef556d755a9066f2e18334e0ea7fd97c3f6fa7b9 100644 (file)
@@ -412,7 +412,7 @@ void drawing_data_request(Drawing_t *drawing,
                          LTTV_PRIO_STATE+5);
         }
       }
-
+      
       events_request->hooks = hooks;
 
       // Fill the events request
index a31234c633dd893f77217e1f6342d671d04f265d..089cd5e9d17b415b37b1502cbb70c6c2f5d9ddc9 100644 (file)
 
 extern GSList *g_legend_list;
 
-#if 0
-typedef struct _ProcessAddClosure {
-  ControlFlowData *cfd;
-  guint trace_num;
-} ProcessAddClosure;
-
-static void process_add(gpointer key,
-                        gpointer value,
-                        gpointer user_data)
-{
-  LttvProcessState *process = (LttvProcessState*)value;
-  ProcessAddClosure *closure = (ProcessAddClosure*)user_data;
-  ControlFlowData *control_flow_data = closure->cfd;
-  guint trace_num = closure->trace_num;
-
-  /* Add process to process list (if not present) */
-  guint pid;
-  LttTime birth;
-  guint y = 0, height = 0, pl_height = 0;
-
-  ProcessList *process_list = control_flow_data->process_list;
-
-  pid = process->pid;
-  birth = process->creation_time;
-  const gchar *name = g_quark_to_string(process->name);
-  HashedProcessData *hashed_process_data = NULL;
-
-  if(processlist_get_process_pixels(process_list,
-          pid,
-          &birth,
-          trace_num,
-          &y,
-          &height,
-          &hashed_process_data) == 1)
-  {
-    /* Process not present */
-    processlist_add(process_list,
-        pid,
-        &birth,
-        trace_num,
-        name,
-        &pl_height,
-        &hashed_process_data);
-    processlist_get_process_pixels(process_list,
-            pid,
-            &birth,
-            trace_num,
-            &y,
-            &height,
-            &hashed_process_data);
-    drawing_insert_square( control_flow_data->drawing, y, height);
-  }
-}
-#endif //0
-
 
 /* Action to do when background computation completed.
  *
@@ -151,7 +96,7 @@ gint background_ready(void *hook_data, void *call_data)
   control_flow_data->background_info_waiting--;
   
   if(control_flow_data->background_info_waiting == 0) {
-    g_debug("control flow viewer : background computation data ready.");
+    g_message("control flow viewer : background computation data ready.");
 
     drawing_clear(control_flow_data->drawing);
     processlist_clear(control_flow_data->process_list);
@@ -360,46 +305,6 @@ static inline PropertiesLine prepare_s_e_line(LttvProcessState *process)
 
 }
 
-#if 0
-static inline PropertiesLine prepare_status_line(LttvProcessState *process)
-{
-  PropertiesLine prop_line;
-  prop_line.line_width = 2;
-  prop_line.style = GDK_LINE_SOLID;
-  prop_line.y = MIDDLE;
-  //GdkColormap *colormap = gdk_colormap_get_system();
-  
-  g_debug("prepare_status_line for state : %s",
-      g_quark_to_string(process->state->s));
-
-  /* color of line : status of the process */
-  if(process->state->s == LTTV_STATE_UNNAMED)
-    prop_line.color = drawing_colors[COL_WHITE];
-  else if(process->state->s == LTTV_STATE_WAIT_FORK)
-    prop_line.color = drawing_colors[COL_WAIT_FORK];
-  else if(process->state->s == LTTV_STATE_WAIT_CPU)
-    prop_line.color = drawing_colors[COL_WAIT_CPU];
-  else if(process->state->s == LTTV_STATE_EXIT)
-    prop_line.color = drawing_colors[COL_EXIT];
-  else if(process->state->s == LTTV_STATE_ZOMBIE)
-    prop_line.color = drawing_colors[COL_ZOMBIE];
-  else if(process->state->s == LTTV_STATE_WAIT)
-    prop_line.color = drawing_colors[COL_WAIT];
-  else if(process->state->s == LTTV_STATE_RUN)
-    prop_line.color = drawing_colors[COL_RUN];
-  else
-      prop_line.color = drawing_colors[COL_WHITE];
-  //gdk_colormap_alloc_color(colormap,
-  //                         prop_line.color,
-  //                         FALSE,
-  //                         TRUE);
-  
-  return prop_line;
-
-}
-#endif //0
-
 
 /* before_schedchange_hook
  * 
@@ -768,590 +673,6 @@ int before_schedchange_hook(void *hook_data, void *call_data)
   return 0;
 
 
-#if 0
-  EventsRequest *events_request = (EventsRequest*)hook_data;
-  ControlFlowData *control_flow_data = 
-                      (ControlFlowData*)events_request->viewer_data;
-  Tab *tab = control_flow_data->tab;
-
-  LttvTracefileContext *tfc = (LttvTracefileContext *)call_data;
-
-  LttvTracefileState *tfs = (LttvTracefileState *)call_data;
-  LttvTraceState *ts =(LttvTraceState *)LTTV_TRACEFILE_CONTEXT(tfs)->t_context;
-  
-  LttEvent *e;
-  e = tfc->e;
-
-  LttTime evtime = ltt_event_time(e);
-  TimeWindow time_window = 
-    lttvwindow_get_time_window(tab);
-
-  LttTime time_window.end_time = time_window.time_window.end_time;
-
-  //if(time < time_beg || time > time_end) return;
-  if(ltt_time_compare(evtime, time_window.start_time) == -1
-        || ltt_time_compare(evtime, time_window.end_time) == 1)
-            return;
-
-  if(strcmp(ltt_eventtype_name(ltt_event_eventtype(e)),"schedchange") == 0)
-  {
-    g_debug("schedchange!");
-    
-    /* Add process to process list (if not present) and get drawing "y" from
-     * process position */
-    guint pid_out, pid_in;
-    LttvProcessState *process_out, *process_in;
-    LttTime birth;
-    guint y_in = 0, y_out = 0, height = 0, pl_height = 0;
-
-    ProcessList *process_list = control_flow_data->process_list;
-
-
-    LttField *f = ltt_event_field(e);
-    LttField *element;
-    element = ltt_field_member(f,0);
-    pid_out = ltt_event_get_long_unsigned(e,element);
-    element = ltt_field_member(f,1);
-    pid_in = ltt_event_get_long_unsigned(e,element);
-    g_debug("out : %u  in : %u", pid_out, pid_in);
-
-
-    /* Find process pid_out in the list... */
-    process_out = lttv_state_find_process(tfs, pid_out);
-    if(process_out == NULL) return 0;
-    g_debug("out : %s",g_quark_to_string(process_out->state->s));
-    
-    birth = process_out->creation_time;
-    const gchar *name = g_quark_to_string(process_out->name);
-    HashedProcessData *hashed_process_data_out = NULL;
-
-    if(processlist_get_process_pixels(process_list,
-            pid_out,
-            &birth,
-            tfc->t_context->index,
-            &y_out,
-            &height,
-            &hashed_process_data_out) == 1)
-    {
-      /* Process not present */
-      processlist_add(process_list,
-          pid_out,
-          &birth,
-          tfc->t_context->index,
-          name,
-          &pl_height,
-          &hashed_process_data_out);
-      g_assert(processlist_get_process_pixels(process_list,
-              pid_out,
-              &birth,
-              tfc->t_context->index,
-              &y_out,
-              &height,
-              &hashed_process_data_out)==0);
-      drawing_insert_square( control_flow_data->drawing, y_out, height);
-    }
-    //g_free(name);
-    
-    /* Find process pid_in in the list... */
-    process_in = lttv_state_find_process(tfs, pid_in);
-    if(process_in == NULL) return 0;
-    g_debug("in : %s",g_quark_to_string(process_in->state->s));
-
-    birth = process_in->creation_time;
-    name = g_quark_to_string(process_in->name);
-    HashedProcessData *hashed_process_data_in = NULL;
-
-    if(processlist_get_process_pixels(process_list,
-            pid_in,
-            &birth,
-            tfc->t_context->index,
-            &y_in,
-            &height,
-            &hashed_process_data_in) == 1)
-    {
-      /* Process not present */
-      processlist_add(process_list,
-        pid_in,
-        &birth,
-        tfc->t_context->index,
-        name,
-        &pl_height,
-        &hashed_process_data_in);
-      processlist_get_process_pixels(process_list,
-            pid_in,
-            &birth,
-            tfc->t_context->index,
-            &y_in,
-            &height,
-            &hashed_process_data_in);
-
-      drawing_insert_square( control_flow_data->drawing, y_in, height);
-    }
-    //g_free(name);
-
-
-    /* Find pixels corresponding to time of the event. If the time does
-     * not fit in the window, show a warning, not supposed to happend. */
-    guint x = 0;
-    guint width = control_flow_data->drawing->width;
-
-    LttTime time = ltt_event_time(e);
-
-    LttTime window_end = time_window.time_window.end_time;
-    
-    convert_time_to_pixels(
-        time_window,
-        time,
-        width,
-        &x);
-    //assert(x <= width);
-    //
-    /* draw what represents the event for outgoing process. */
-
-    DrawContext *draw_context_out = hashed_process_data_out->draw_context;
-    draw_context_out->current->modify_over->x = x;
-    draw_context_out->current->modify_under->x = x;
-    draw_context_out->current->modify_over->y = y_out;
-    draw_context_out->current->modify_under->y = y_out+(height/2)+2;
-    draw_context_out->drawable = control_flow_data->drawing->pixmap;
-    draw_context_out->pango_layout = control_flow_data->drawing->pango_layout;
-    GtkWidget *widget = control_flow_data->drawing->drawing_area;
-    //draw_context_out->gc = widget->style->fg_gc[GTK_WIDGET_STATE (widget)];
-    //draw_context_out->gc = gdk_gc_new(control_flow_data->drawing->pixmap);
-    //gdk_gc_copy(draw_context_out->gc, widget->style->black_gc);
-    //draw_context_out->gc = widget->style->black_gc;
-    
-    //draw_arc((void*)&prop_arc, (void*)draw_context_out);
-    //test_draw_item(control_flow_data->drawing, control_flow_data->drawing->pixmap);
-    
-    /* Draw the line/background of the out process */
-    if(draw_context_out->previous->middle->x == -1)
-    {
-      draw_context_out->previous->over->x =
-                            control_flow_data->drawing->damage_begin;
-      draw_context_out->previous->middle->x = 
-                            control_flow_data->drawing->damage_begin;
-      draw_context_out->previous->under->x =
-                            control_flow_data->drawing->damage_begin;
-      g_debug("out middle x_beg : %u",control_flow_data->drawing->damage_begin);
-    }
-  
-    draw_context_out->current->middle->x = x;
-    draw_context_out->current->over->x = x;
-    draw_context_out->current->under->x = x;
-    draw_context_out->current->middle->y = y_out + height/2;
-    draw_context_out->current->over->y = y_out;
-    draw_context_out->current->under->y = y_out + height;
-    draw_context_out->previous->middle->y = y_out + height/2;
-    draw_context_out->previous->over->y = y_out;
-    draw_context_out->previous->under->y = y_out + height;
-
-    draw_context_out->drawable = control_flow_data->drawing->pixmap;
-    draw_context_out->pango_layout = control_flow_data->drawing->pango_layout;
-
-    if(process_out->state->s == LTTV_STATE_RUN)
-    {
-      //draw_context_out->gc = gdk_gc_new(control_flow_data->drawing->pixmap);
-      //gdk_gc_copy(draw_context_out->gc, widget->style->black_gc);
-      draw_context_out->gc = control_flow_data->drawing->gc;
-
-      PropertiesBG prop_bg;
-      prop_bg.color = g_new(GdkColor,1);
-      
-      switch(ltt_tracefile_num(tfc->tf)) {
-        case 0:
-          prop_bg.color->red = 0x1515;
-          prop_bg.color->green = 0x1515;
-          prop_bg.color->blue = 0x8c8c;
-          break;
-        case 1:
-          prop_bg.color->red = 0x4e4e;
-          prop_bg.color->green = 0xa9a9;
-          prop_bg.color->blue = 0xa4a4;
-          break;
-        case 2:
-          prop_bg.color->red = 0x7a7a;
-          prop_bg.color->green = 0x4a4a;
-          prop_bg.color->blue = 0x8b8b;
-          break;
-        case 3:
-          prop_bg.color->red = 0x8080;
-          prop_bg.color->green = 0x7777;
-          prop_bg.color->blue = 0x4747;
-          break;
-        default:
-          prop_bg.color->red = 0xe7e7;
-          prop_bg.color->green = 0xe7e7;
-          prop_bg.color->blue = 0xe7e7;
-      }
-      
-      g_debug("calling from draw_event");
-      draw_bg((void*)&prop_bg, (void*)draw_context_out);
-      g_free(prop_bg.color);
-      //gdk_gc_unref(draw_context_out->gc);
-    }
-
-    draw_context_out->gc = widget->style->black_gc;
-
-    GdkColor colorfg_out = { 0, 0xffff, 0x0000, 0x0000 };
-    GdkColor colorbg_out = { 0, 0x0000, 0x0000, 0x0000 };
-    PropertiesText prop_text_out;
-    prop_text_out.foreground = &colorfg_out;
-    prop_text_out.background = &colorbg_out;
-    prop_text_out.size = 6;
-    prop_text_out.position = OVER;
-
-    /* color of text : status of the process */
-    if(process_out->state->s == LTTV_STATE_UNNAMED)
-    {
-      prop_text_out.foreground->red = 0xffff;
-      prop_text_out.foreground->green = 0xffff;
-      prop_text_out.foreground->blue = 0xffff;
-    }
-    else if(process_out->state->s == LTTV_STATE_WAIT_FORK)
-    {
-      prop_text_out.foreground->red = 0x0fff;
-      prop_text_out.foreground->green = 0xffff;
-      prop_text_out.foreground->blue = 0xfff0;
-    }
-    else if(process_out->state->s == LTTV_STATE_WAIT_CPU)
-    {
-      prop_text_out.foreground->red = 0xffff;
-      prop_text_out.foreground->green = 0xffff;
-      prop_text_out.foreground->blue = 0x0000;
-    }
-    else if(process_out->state->s == LTTV_STATE_ZOMBIE)
-    {
-      prop_text_out.foreground->red = 0xffff;
-      prop_text_out.foreground->green = 0x0000;
-      prop_text_out.foreground->blue = 0xffff;
-    }
-    else if(process_out->state->s == LTTV_STATE_WAIT)
-    {
-      prop_text_out.foreground->red = 0xffff;
-      prop_text_out.foreground->green = 0x0000;
-      prop_text_out.foreground->blue = 0x0000;
-    }
-    else if(process_out->state->s == LTTV_STATE_RUN)
-    {
-      prop_text_out.foreground->red = 0x0000;
-      prop_text_out.foreground->green = 0xffff;
-      prop_text_out.foreground->blue = 0x0000;
-    }
-    else
-    {
-      prop_text_out.foreground->red = 0xffff;
-      prop_text_out.foreground->green = 0xffff;
-      prop_text_out.foreground->blue = 0xffff;
-    }
-    
-    /* Print status of the process : U, WF, WC, E, W, R */
-    if(process_out->state->s == LTTV_STATE_UNNAMED)
-      prop_text_out.text = "U->";
-    else if(process_out->state->s == LTTV_STATE_WAIT_FORK)
-      prop_text_out.text = "WF->";
-    else if(process_out->state->s == LTTV_STATE_WAIT_CPU)
-      prop_text_out.text = "WC->";
-    else if(process_out->state->s == LTTV_STATE_ZOMBIE)
-      prop_text_out.text = "E->";
-    else if(process_out->state->s == LTTV_STATE_WAIT)
-      prop_text_out.text = "W->";
-    else if(process_out->state->s == LTTV_STATE_RUN)
-      prop_text_out.text = "R->";
-    else
-      prop_text_out.text = "U";
-    
-    draw_text((void*)&prop_text_out, (void*)draw_context_out);
-    //gdk_gc_unref(draw_context_out->gc);
-
-    //draw_context_out->gc = gdk_gc_new(control_flow_data->drawing->pixmap);
-    //gdk_gc_copy(draw_context_out->gc, widget->style->black_gc);
-    draw_context_out->gc = control_flow_data->drawing->gc;
-
-    PropertiesLine prop_line_out;
-    prop_line_out.color = g_new(GdkColor,1);
-    prop_line_out.line_width = 2;
-    prop_line_out.style = GDK_LINE_SOLID;
-    prop_line_out.position = MIDDLE;
-    
-    g_debug("out state : %s", g_quark_to_string(process_out->state->s));
-
-    /* color of line : status of the process */
-    if(process_out->state->s == LTTV_STATE_UNNAMED)
-    {
-      prop_line_out.color->red = 0xffff;
-      prop_line_out.color->green = 0xffff;
-      prop_line_out.color->blue = 0xffff;
-    }
-    else if(process_out->state->s == LTTV_STATE_WAIT_FORK)
-    {
-      prop_line_out.color->red = 0x0fff;
-      prop_line_out.color->green = 0xffff;
-      prop_line_out.color->blue = 0xfff0;
-    }
-    else if(process_out->state->s == LTTV_STATE_WAIT_CPU)
-    {
-      prop_line_out.color->red = 0xffff;
-      prop_line_out.color->green = 0xffff;
-      prop_line_out.color->blue = 0x0000;
-    }
-    else if(process_out->state->s == LTTV_STATE_ZOMBIE)
-    {
-      prop_line_out.color->red = 0xffff;
-      prop_line_out.color->green = 0x0000;
-      prop_line_out.color->blue = 0xffff;
-    }
-    else if(process_out->state->s == LTTV_STATE_WAIT)
-    {
-      prop_line_out.color->red = 0xffff;
-      prop_line_out.color->green = 0x0000;
-      prop_line_out.color->blue = 0x0000;
-    }
-    else if(process_out->state->s == LTTV_STATE_RUN)
-    {
-      prop_line_out.color->red = 0x0000;
-      prop_line_out.color->green = 0xffff;
-      prop_line_out.color->blue = 0x0000;
-    }
-    else
-    {
-      prop_line_out.color->red = 0xffff;
-      prop_line_out.color->green = 0xffff;
-      prop_line_out.color->blue = 0xffff;
-    }
-  
-    draw_line((void*)&prop_line_out, (void*)draw_context_out);
-    g_free(prop_line_out.color);
-    //gdk_gc_unref(draw_context_out->gc);
-    /* Note : finishing line will have to be added when trace read over. */
-      
-    /* Finally, update the drawing context of the pid_in. */
-
-    DrawContext *draw_context_in = hashed_process_data_in->draw_context;
-    draw_context_in->current->modify_over->x = x;
-    draw_context_in->current->modify_under->x = x;
-    draw_context_in->current->modify_over->y = y_in;
-    draw_context_in->current->modify_under->y = y_in+(height/2)+2;
-    draw_context_in->drawable = control_flow_data->drawing->pixmap;
-    draw_context_in->pango_layout = control_flow_data->drawing->pango_layout;
-    widget = control_flow_data->drawing->drawing_area;
-    //draw_context_in->gc = widget->style->fg_gc[GTK_WIDGET_STATE (widget)];
-    //draw_context_in->gc = widget->style->black_gc;
-    //draw_context_in->gc = gdk_gc_new(control_flow_data->drawing->pixmap);
-    //gdk_gc_copy(draw_context_in->gc, widget->style->black_gc);
-    
-    //draw_arc((void*)&prop_arc, (void*)draw_context_in);
-    //test_draw_item(control_flow_data->drawing, control_flow_data->drawing->pixmap);
-      
-    /* Draw the line/bg of the in process */
-    if(draw_context_in->previous->middle->x == -1)
-    {
-      draw_context_in->previous->over->x =
-                            control_flow_data->drawing->damage_begin;
-      draw_context_in->previous->middle->x = 
-                            control_flow_data->drawing->damage_begin;
-      draw_context_in->previous->under->x =
-                            control_flow_data->drawing->damage_begin;
-
-      g_debug("in middle x_beg : %u",control_flow_data->drawing->damage_begin);
-
-    }
-  
-    draw_context_in->current->middle->x = x;
-    draw_context_in->current->over->x = x;
-    draw_context_in->current->under->x = x;
-    draw_context_in->current->middle->y = y_in + height/2;
-    draw_context_in->current->over->y = y_in;
-    draw_context_in->current->under->y = y_in + height;
-    draw_context_in->previous->middle->y = y_in + height/2;
-    draw_context_in->previous->over->y = y_in;
-    draw_context_in->previous->under->y = y_in + height;
-    
-    draw_context_in->drawable = control_flow_data->drawing->pixmap;
-    draw_context_in->pango_layout = control_flow_data->drawing->pango_layout;
-
-    if(process_in->state->s == LTTV_STATE_RUN)
-    {
-      //draw_context_in->gc = gdk_gc_new(control_flow_data->drawing->pixmap);
-      //gdk_gc_copy(draw_context_in->gc, widget->style->black_gc);
-      draw_context_in->gc = control_flow_data->drawing->gc;
-
-      PropertiesBG prop_bg;
-      prop_bg.color = g_new(GdkColor,1);
-        
-      switcht(ltt_tracefile_num(tfc->tf)) {
-        case 0:
-          prop_bg.color->red = 0x1515;
-          prop_bg.color->green = 0x1515;
-          prop_bg.color->blue = 0x8c8c;
-          break;
-        case 1:
-          prop_bg.color->red = 0x4e4e;
-          prop_bg.color->green = 0xa9a9;
-          prop_bg.color->blue = 0xa4a4;
-          break;
-        case 2:
-          prop_bg.color->red = 0x7a7a;
-          prop_bg.color->green = 0x4a4a;
-          prop_bg.color->blue = 0x8b8b;
-          break;
-        case 3:
-          prop_bg.color->red = 0x8080;
-          prop_bg.color->green = 0x7777;
-          prop_bg.color->blue = 0x4747;
-          break;
-        default:
-          prop_bg.color->red = 0xe7e7;
-          prop_bg.color->green = 0xe7e7;
-          prop_bg.color->blue = 0xe7e7;
-      }
-      
-
-      draw_bg((void*)&prop_bg, (void*)draw_context_in);
-      g_free(prop_bg.color);
-      //gdk_gc_unref(draw_context_in->gc);
-    }
-
-    draw_context_in->gc = widget->style->black_gc;
-
-    GdkColor colorfg_in = { 0, 0x0000, 0xffff, 0x0000 };
-    GdkColor colorbg_in = { 0, 0x0000, 0x0000, 0x0000 };
-    PropertiesText prop_text_in;
-    prop_text_in.foreground = &colorfg_in;
-    prop_text_in.background = &colorbg_in;
-    prop_text_in.size = 6;
-    prop_text_in.position = OVER;
-
-    g_debug("in state : %s", g_quark_to_string(process_in->state->s));
-    /* foreground of text : status of the process */
-    if(process_in->state->s == LTTV_STATE_UNNAMED)
-    {
-      prop_text_in.foreground->red = 0xffff;
-      prop_text_in.foreground->green = 0xffff;
-      prop_text_in.foreground->blue = 0xffff;
-    }
-    else if(process_in->state->s == LTTV_STATE_WAIT_FORK)
-    {
-      prop_text_in.foreground->red = 0x0fff;
-      prop_text_in.foreground->green = 0xffff;
-      prop_text_in.foreground->blue = 0xfff0;
-    }
-    else if(process_in->state->s == LTTV_STATE_WAIT_CPU)
-    {
-      prop_text_in.foreground->red = 0xffff;
-      prop_text_in.foreground->green = 0xffff;
-      prop_text_in.foreground->blue = 0x0000;
-    }
-    else if(process_in->state->s == LTTV_STATE_ZOMBIE)
-    {
-      prop_text_in.foreground->red = 0xffff;
-      prop_text_in.foreground->green = 0x0000;
-      prop_text_in.foreground->blue = 0xffff;
-    }
-    else if(process_in->state->s == LTTV_STATE_WAIT)
-    {
-      prop_text_in.foreground->red = 0xffff;
-      prop_text_in.foreground->green = 0x0000;
-      prop_text_in.foreground->blue = 0x0000;
-    }
-    else if(process_in->state->s == LTTV_STATE_RUN)
-    {
-      prop_text_in.foreground->red = 0x0000;
-      prop_text_in.foreground->green = 0xffff;
-      prop_text_in.foreground->blue = 0x0000;
-    }
-    else
-    {
-      prop_text_in.foreground->red = 0xffff;
-      prop_text_in.foreground->green = 0xffff;
-      prop_text_in.foreground->blue = 0xffff;
-    }
-  
-
-
-    /* Print status of the process : U, WF, WC, E, W, R */
-    if(process_in->state->s == LTTV_STATE_UNNAMED)
-      prop_text_in.text = "U->";
-    else if(process_in->state->s == LTTV_STATE_WAIT_FORK)
-      prop_text_in.text = "WF->";
-    else if(process_in->state->s == LTTV_STATE_WAIT_CPU)
-      prop_text_in.text = "WC->";
-    else if(process_in->state->s == LTTV_STATE_ZOMBIE)
-      prop_text_in.text = "E->";
-    else if(process_in->state->s == LTTV_STATE_WAIT)
-      prop_text_in.text = "W->";
-    else if(process_in->state->s == LTTV_STATE_RUN)
-      prop_text_in.text = "R->";
-    else
-      prop_text_in.text = "U";
-    
-    draw_text((void*)&prop_text_in, (void*)draw_context_in);
-    //gdk_gc_unref(draw_context_in->gc);
-   
-    //draw_context_in->gc = gdk_gc_new(control_flow_data->drawing->pixmap);
-    //gdk_gc_copy(draw_context_in->gc, widget->style->black_gc);
-    draw_context_in->gc = control_flow_data->drawing->gc;
-
-    PropertiesLine prop_line_in;
-    prop_line_in.color = g_new(GdkColor,1);
-    prop_line_in.line_width = 2;
-    prop_line_in.style = GDK_LINE_SOLID;
-    prop_line_in.position = MIDDLE;
-
-    /* color of line : status of the process */
-    if(process_in->state->s == LTTV_STATE_UNNAMED)
-    {
-      prop_line_in.color->red = 0xffff;
-      prop_line_in.color->green = 0xffff;
-      prop_line_in.color->blue = 0xffff;
-    }
-    else if(process_in->state->s == LTTV_STATE_WAIT_FORK)
-    {
-      prop_line_in.color->red = 0x0fff;
-      prop_line_in.color->green = 0xffff;
-      prop_line_in.color->blue = 0xfff0;
-    }
-    else if(process_in->state->s == LTTV_STATE_WAIT_CPU)
-    {
-      prop_line_in.color->red = 0xffff;
-      prop_line_in.color->green = 0xffff;
-      prop_line_in.color->blue = 0x0000;
-    }
-    else if(process_in->state->s == LTTV_STATE_ZOMBIE)
-    {
-      prop_line_in.color->red = 0xffff;
-      prop_line_in.color->green = 0x0000;
-      prop_line_in.color->blue = 0xffff;
-    }
-    else if(process_in->state->s == LTTV_STATE_WAIT)
-    {
-      prop_line_in.color->red = 0xffff;
-      prop_line_in.color->green = 0x0000;
-      prop_line_in.color->blue = 0x0000;
-    }
-    else if(process_in->state->s == LTTV_STATE_RUN)
-    {
-      prop_line_in.color->red = 0x0000;
-      prop_line_in.color->green = 0xffff;
-      prop_line_in.color->blue = 0x0000;
-    }
-    else
-    {
-      prop_line_in.color->red = 0xffff;
-      prop_line_in.color->green = 0xffff;
-      prop_line_in.color->blue = 0xffff;
-    }
-  
-    draw_line((void*)&prop_line_in, (void*)draw_context_in);
-    g_free(prop_line_in.color);
-    //gdk_gc_unref(draw_context_in->gc);
-  }
-
-  return 0;
-#endif //0
-
 
 
   /* Text dump */
@@ -1489,527 +810,43 @@ int after_schedchange_hook(void *hook_data, void *call_data)
     }
   }
   return 0;
+}
 
 
 
 
+/* before_execmode_hook
+ * 
+ * This function basically draw lines and icons. Two types of lines are drawn :
+ * one small (3 pixels?) representing the state of the process and the second
+ * type is thicker (10 pixels?) representing on which CPU a process is running
+ * (and this only in running state).
+ *
+ * Extremums of the lines :
+ * x_min : time of the last event context for this process kept in memory.
+ * x_max : time of the current event.
+ * y : middle of the process in the process list. The process is found in the
+ * list, therefore is it's position in pixels.
+ *
+ * The choice of lines'color is defined by the context of the last event for this
+ * process.
+ */
+
 
-#if 0
-  EventsRequest *events_request = (EventsRequest*)hook_data;
+int before_execmode_hook(void *hook_data, void *call_data)
+{
+  LttvTraceHookByFacility *thf = (LttvTraceHookByFacility*)hook_data;
+  EventsRequest *events_request = (EventsRequest*)thf->hook_data;
   ControlFlowData *control_flow_data = events_request->viewer_data;
 
   LttvTracefileContext *tfc = (LttvTracefileContext *)call_data;
 
   LttvTracefileState *tfs = (LttvTracefileState *)call_data;
-  LttvTraceState *ts =(LttvTraceState *)LTTV_TRACEFILE_CONTEXT(tfs)->t_context;
 
-  
+  LttvTraceState *ts = (LttvTraceState *)tfc->t_context;
+
   LttEvent *e;
-  e = tfc->e;
-
-  LttTime evtime = ltt_event_time(e);
-  TimeWindow time_window = 
-    lttvwindow_get_time_window(control_flow_data->tab);
-
-  LttTime time_window.end_time = time_window.time_window.end_time;
-
-  //if(time < time_beg || time > time_end) return;
-  if(ltt_time_compare(evtime, time_window.start_time) == -1
-        || ltt_time_compare(evtime, time_window.end_time) == 1)
-            return;
-
-
-  if(strcmp(ltt_eventtype_name(ltt_event_eventtype(e)),"schedchange") == 0)
-  {
-    g_debug("schedchange!");
-    
-    /* Add process to process list (if not present) and get drawing "y" from
-     * process position */
-    guint pid_out, pid_in;
-    LttvProcessState *process_out, *process_in;
-    LttTime birth;
-    guint y_in = 0, y_out = 0, height = 0, pl_height = 0;
-
-    ProcessList *process_list = control_flow_data->process_list;
-
-
-    LttField *f = ltt_event_field(e);
-    LttField *element;
-    element = ltt_field_member(f,0);
-    pid_out = ltt_event_get_long_unsigned(e,element);
-    element = ltt_field_member(f,1);
-    pid_in = ltt_event_get_long_unsigned(e,element);
-    //g_debug("out : %u  in : %u", pid_out, pid_in);
-
-
-    /* Find process pid_out in the list... */
-    process_out = lttv_state_find_process(tfs, pid_out);
-    if(process_out == NULL) return 0;
-    //g_debug("out : %s",g_quark_to_string(process_out->state->s));
-
-    birth = process_out->creation_time;
-    gchar *name = strdup(g_quark_to_string(process_out->name));
-    HashedProcessData *hashed_process_data_out = NULL;
-
-    if(processlist_get_process_pixels(process_list,
-            pid_out,
-            &birth,
-            tfc->t_context->index,
-            &y_out,
-            &height,
-            &hashed_process_data_out) == 1)
-    {
-      /* Process not present */
-      processlist_add(process_list,
-          pid_out,
-          &birth,
-          tfc->t_context->index,
-          name,
-          &pl_height,
-          &hashed_process_data_out);
-      processlist_get_process_pixels(process_list,
-              pid_out,
-              &birth,
-              tfc->t_context->index,
-              &y_out,
-              &height,
-              &hashed_process_data_out);
-      drawing_insert_square( control_flow_data->drawing, y_out, height);
-    }
-
-    g_free(name);
-    
-    /* Find process pid_in in the list... */
-    process_in = lttv_state_find_process(tfs, pid_in);
-    if(process_in == NULL) return 0;
-    //g_debug("in : %s",g_quark_to_string(process_in->state->s));
-
-    birth = process_in->creation_time;
-    name = strdup(g_quark_to_string(process_in->name));
-    HashedProcessData *hashed_process_data_in = NULL;
-
-    if(processlist_get_process_pixels(process_list,
-            pid_in,
-            &birth,
-            tfc->t_context->index,
-            &y_in,
-            &height,
-            &hashed_process_data_in) == 1)
-    {
-    /* Process not present */
-      processlist_add(process_list,
-        pid_in,
-        &birth,
-        tfc->t_context->index,
-        name,
-        &pl_height,
-        &hashed_process_data_in);
-      processlist_get_process_pixels(process_list,
-            pid_in,
-            &birth,
-            tfc->t_context->index,
-            &y_in,
-            &height,
-            &hashed_process_data_in);
-
-      drawing_insert_square( control_flow_data->drawing, y_in, height);
-    }
-    g_free(name);
-
-
-    /* Find pixels corresponding to time of the event. If the time does
-     * not fit in the window, show a warning, not supposed to happend. */
-    //guint x = 0;
-    //guint width = control_flow_data->drawing->drawing_area->allocation.width;
-
-    //LttTime time = ltt_event_time(e);
-
-    //LttTime window_end = time_window->time_window.end_time;
-
-    
-    //convert_time_to_pixels(
-    //    *time_window,
-    //    time,
-    //    width,
-    //    &x);
-    
-    //assert(x <= width);
-    
-    /* draw what represents the event for outgoing process. */
-
-    DrawContext *draw_context_out = hashed_process_data_out->draw_context;
-    //draw_context_out->current->modify_over->x = x;
-    draw_context_out->current->modify_over->y = y_out;
-    draw_context_out->current->modify_under->y = y_out+(height/2)+2;
-    draw_context_out->drawable = control_flow_data->drawing->pixmap;
-    draw_context_out->pango_layout = control_flow_data->drawing->pango_layout;
-    GtkWidget *widget = control_flow_data->drawing->drawing_area;
-    //draw_context_out->gc = widget->style->fg_gc[GTK_WIDGET_STATE (widget)];
-    //draw_arc((void*)&prop_arc, (void*)draw_context_out);
-    //test_draw_item(control_flow_data->drawing, control_flow_data->drawing->pixmap);
-     
-    /*if(process_out->state->s == LTTV_STATE_RUN)
-    {
-      draw_context_out->gc = gdk_gc_new(control_flow_data->drawing->pixmap);
-      gdk_gc_copy(draw_context_out->gc, widget->style->black_gc);
-      PropertiesBG prop_bg;
-      prop_bg.color = g_new(GdkColor,1);
-      
-      prop_bg.color->red = 0xffff;
-      prop_bg.color->green = 0xffff;
-      prop_bg.color->blue = 0xffff;
-      
-      draw_bg((void*)&prop_bg, (void*)draw_context_out);
-      g_free(prop_bg.color);
-      gdk_gc_unref(draw_context_out->gc);
-    }*/
-
-    draw_context_out->gc = widget->style->black_gc;
-
-    GdkColor colorfg_out = { 0, 0xffff, 0x0000, 0x0000 };
-    GdkColor colorbg_out = { 0, 0x0000, 0x0000, 0x0000 };
-    PropertiesText prop_text_out;
-    prop_text_out.foreground = &colorfg_out;
-    prop_text_out.background = &colorbg_out;
-    prop_text_out.size = 6;
-    prop_text_out.position = OVER;
-
-    /* color of text : status of the process */
-    if(process_out->state->s == LTTV_STATE_UNNAMED)
-    {
-      prop_text_out.foreground->red = 0xffff;
-      prop_text_out.foreground->green = 0xffff;
-      prop_text_out.foreground->blue = 0xffff;
-    }
-    else if(process_out->state->s == LTTV_STATE_WAIT_FORK)
-    {
-      prop_text_out.foreground->red = 0x0fff;
-      prop_text_out.foreground->green = 0xffff;
-      prop_text_out.foreground->blue = 0xfff0;
-    }
-    else if(process_out->state->s == LTTV_STATE_WAIT_CPU)
-    {
-      prop_text_out.foreground->red = 0xffff;
-      prop_text_out.foreground->green = 0xffff;
-      prop_text_out.foreground->blue = 0x0000;
-    }
-    else if(process_out->state->s == LTTV_STATE_ZOMBIE)
-    {
-      prop_text_out.foreground->red = 0xffff;
-      prop_text_out.foreground->green = 0x0000;
-      prop_text_out.foreground->blue = 0xffff;
-    }
-    else if(process_out->state->s == LTTV_STATE_WAIT)
-    {
-      prop_text_out.foreground->red = 0xffff;
-      prop_text_out.foreground->green = 0x0000;
-      prop_text_out.foreground->blue = 0x0000;
-    }
-    else if(process_out->state->s == LTTV_STATE_RUN)
-    {
-      prop_text_out.foreground->red = 0x0000;
-      prop_text_out.foreground->green = 0xffff;
-      prop_text_out.foreground->blue = 0x0000;
-    }
-    else
-    {
-      prop_text_out.foreground->red = 0xffff;
-      prop_text_out.foreground->green = 0xffff;
-      prop_text_out.foreground->blue = 0xffff;
-    }
-    /* Print status of the process : U, WF, WC, E, W, R */
-    if(process_out->state->s == LTTV_STATE_UNNAMED)
-      prop_text_out.text = "U";
-    else if(process_out->state->s == LTTV_STATE_WAIT_FORK)
-      prop_text_out.text = "WF";
-    else if(process_out->state->s == LTTV_STATE_WAIT_CPU)
-      prop_text_out.text = "WC";
-    else if(process_out->state->s == LTTV_STATE_ZOMBIE)
-      prop_text_out.text = "E";
-    else if(process_out->state->s == LTTV_STATE_WAIT)
-      prop_text_out.text = "W";
-    else if(process_out->state->s == LTTV_STATE_RUN)
-      prop_text_out.text = "R";
-    else
-      prop_text_out.text = "U";
-    
-    draw_text((void*)&prop_text_out, (void*)draw_context_out);
-
-    //gdk_gc_unref(draw_context_out->gc);
-    draw_context_out->current->middle->y = y_out+height/2;
-    draw_context_out->current->over->y = y_out;
-    draw_context_out->current->under->y = y_out+height;
-    draw_context_out->current->status = process_out->state->s;
-    
-    /* for pid_out : remove previous, Prev = current, new current (default) */
-    g_free(draw_context_out->previous->modify_under);
-    g_free(draw_context_out->previous->modify_middle);
-    g_free(draw_context_out->previous->modify_over);
-    g_free(draw_context_out->previous->under);
-    g_free(draw_context_out->previous->middle);
-    g_free(draw_context_out->previous->over);
-    g_free(draw_context_out->previous);
-
-    draw_context_out->previous = draw_context_out->current;
-    
-    draw_context_out->current = g_new(DrawInfo,1);
-    draw_context_out->current->over = g_new(ItemInfo,1);
-    draw_context_out->current->over->x = -1;
-    draw_context_out->current->over->y = -1;
-    draw_context_out->current->middle = g_new(ItemInfo,1);
-    draw_context_out->current->middle->x = -1;
-    draw_context_out->current->middle->y = -1;
-    draw_context_out->current->under = g_new(ItemInfo,1);
-    draw_context_out->current->under->x = -1;
-    draw_context_out->current->under->y = -1;
-    draw_context_out->current->modify_over = g_new(ItemInfo,1);
-    draw_context_out->current->modify_over->x = -1;
-    draw_context_out->current->modify_over->y = -1;
-    draw_context_out->current->modify_middle = g_new(ItemInfo,1);
-    draw_context_out->current->modify_middle->x = -1;
-    draw_context_out->current->modify_middle->y = -1;
-    draw_context_out->current->modify_under = g_new(ItemInfo,1);
-    draw_context_out->current->modify_under->x = -1;
-    draw_context_out->current->modify_under->y = -1;
-    draw_context_out->current->status = LTTV_STATE_UNNAMED;
-      
-    /* Finally, update the drawing context of the pid_in. */
-
-    DrawContext *draw_context_in = hashed_process_data_in->draw_context;
-    //draw_context_in->current->modify_over->x = x;
-    draw_context_in->current->modify_over->y = y_in;
-    draw_context_in->current->modify_under->y = y_in+(height/2)+2;
-    draw_context_in->drawable = control_flow_data->drawing->pixmap;
-    draw_context_in->pango_layout = control_flow_data->drawing->pango_layout;
-    widget = control_flow_data->drawing->drawing_area;
-    //draw_context_in->gc = widget->style->fg_gc[GTK_WIDGET_STATE (widget)];
-    
-    //draw_arc((void*)&prop_arc, (void*)draw_context_in);
-    //test_draw_item(control_flow_data->drawing, control_flow_data->drawing->pixmap);
-     
-    /*if(process_in->state->s == LTTV_STATE_RUN)
-    {
-      draw_context_in->gc = gdk_gc_new(control_flow_data->drawing->pixmap);
-      gdk_gc_copy(draw_context_in->gc, widget->style->black_gc);
-      PropertiesBG prop_bg;
-      prop_bg.color = g_new(GdkColor,1);
-      
-      prop_bg.color->red = 0xffff;
-      prop_bg.color->green = 0xffff;
-      prop_bg.color->blue = 0xffff;
-      
-      draw_bg((void*)&prop_bg, (void*)draw_context_in);
-      g_free(prop_bg.color);
-      gdk_gc_unref(draw_context_in->gc);
-    }*/
-
-    draw_context_in->gc = widget->style->black_gc;
-
-    GdkColor colorfg_in = { 0, 0x0000, 0xffff, 0x0000 };
-    GdkColor colorbg_in = { 0, 0x0000, 0x0000, 0x0000 };
-    PropertiesText prop_text_in;
-    prop_text_in.foreground = &colorfg_in;
-    prop_text_in.background = &colorbg_in;
-    prop_text_in.size = 6;
-    prop_text_in.position = OVER;
-
-    /* foreground of text : status of the process */
-    if(process_in->state->s == LTTV_STATE_UNNAMED)
-    {
-      prop_text_in.foreground->red = 0xffff;
-      prop_text_in.foreground->green = 0xffff;
-      prop_text_in.foreground->blue = 0xffff;
-    }
-    else if(process_in->state->s == LTTV_STATE_WAIT_FORK)
-    {
-      prop_text_in.foreground->red = 0x0fff;
-      prop_text_in.foreground->green = 0xffff;
-      prop_text_in.foreground->blue = 0xfff0;
-    }
-    else if(process_in->state->s == LTTV_STATE_WAIT_CPU)
-    {
-      prop_text_in.foreground->red = 0xffff;
-      prop_text_in.foreground->green = 0xffff;
-      prop_text_in.foreground->blue = 0x0000;
-    }
-    else if(process_in->state->s == LTTV_STATE_ZOMBIE)
-    {
-      prop_text_in.foreground->red = 0xffff;
-      prop_text_in.foreground->green = 0x0000;
-      prop_text_in.foreground->blue = 0xffff;
-    }
-    else if(process_in->state->s == LTTV_STATE_WAIT)
-    {
-      prop_text_in.foreground->red = 0xffff;
-      prop_text_in.foreground->green = 0x0000;
-      prop_text_in.foreground->blue = 0x0000;
-    }
-    else if(process_in->state->s == LTTV_STATE_RUN)
-    {
-      prop_text_in.foreground->red = 0x0000;
-      prop_text_in.foreground->green = 0xffff;
-      prop_text_in.foreground->blue = 0x0000;
-    }
-    else
-    {
-      prop_text_in.foreground->red = 0xffff;
-      prop_text_in.foreground->green = 0xffff;
-      prop_text_in.foreground->blue = 0xffff;
-    }
-  
-
-    /* Print status of the process : U, WF, WC, E, W, R */
-    if(process_in->state->s == LTTV_STATE_UNNAMED)
-      prop_text_in.text = "U";
-    else if(process_in->state->s == LTTV_STATE_WAIT_FORK)
-      prop_text_in.text = "WF";
-    else if(process_in->state->s == LTTV_STATE_WAIT_CPU)
-      prop_text_in.text = "WC";
-    else if(process_in->state->s == LTTV_STATE_ZOMBIE)
-      prop_text_in.text = "E";
-    else if(process_in->state->s == LTTV_STATE_WAIT)
-      prop_text_in.text = "W";
-    else if(process_in->state->s == LTTV_STATE_RUN)
-      prop_text_in.text = "R";
-    else
-      prop_text_in.text = "U";
-    
-    draw_text((void*)&prop_text_in, (void*)draw_context_in);
-    
-
-    if(process_in->state->s == LTTV_STATE_RUN)
-    { 
-      gchar tmp[255];
-      prop_text_in.foreground = &colorfg_in;
-      prop_text_in.background = &colorbg_in;
-      prop_text_in.foreground->red = 0xffff;
-      prop_text_in.foreground->green = 0xffff;
-      prop_text_in.foreground->blue = 0xffff;
-      prop_text_in.size = 6;
-      prop_text_in.position = UNDER;
-
-      prop_text_in.text = g_new(gchar, 260);
-      strcpy(prop_text_in.text, "CPU ");
-      snprintf(tmp, 255, "%u", ltt_tracefile_num(tfc->tf));
-      strcat(prop_text_in.text, tmp);
-
-      draw_text((void*)&prop_text_in, (void*)draw_context_in);
-      g_free(prop_text_in.text);
-    }
-
-    
-    draw_context_in->current->middle->y = y_in+height/2;
-    draw_context_in->current->over->y = y_in;
-    draw_context_in->current->under->y = y_in+height;
-    draw_context_in->current->status = process_in->state->s;
-
-    /* for pid_in : remove previous, Prev = current, new current (default) */
-    g_free(draw_context_in->previous->modify_under);
-    g_free(draw_context_in->previous->modify_middle);
-    g_free(draw_context_in->previous->modify_over);
-    g_free(draw_context_in->previous->under);
-    g_free(draw_context_in->previous->middle);
-    g_free(draw_context_in->previous->over);
-    g_free(draw_context_in->previous);
-
-    draw_context_in->previous = draw_context_in->current;
-    
-    draw_context_in->current = g_new(DrawInfo,1);
-    draw_context_in->current->over = g_new(ItemInfo,1);
-    draw_context_in->current->over->x = -1;
-    draw_context_in->current->over->y = -1;
-    draw_context_in->current->middle = g_new(ItemInfo,1);
-    draw_context_in->current->middle->x = -1;
-    draw_context_in->current->middle->y = -1;
-    draw_context_in->current->under = g_new(ItemInfo,1);
-    draw_context_in->current->under->x = -1;
-    draw_context_in->current->under->y = -1;
-    draw_context_in->current->modify_over = g_new(ItemInfo,1);
-    draw_context_in->current->modify_over->x = -1;
-    draw_context_in->current->modify_over->y = -1;
-    draw_context_in->current->modify_middle = g_new(ItemInfo,1);
-    draw_context_in->current->modify_middle->x = -1;
-    draw_context_in->current->modify_middle->y = -1;
-    draw_context_in->current->modify_under = g_new(ItemInfo,1);
-    draw_context_in->current->modify_under->x = -1;
-    draw_context_in->current->modify_under->y = -1;
-    draw_context_in->current->status = LTTV_STATE_UNNAMED;
-  
-  }
-
-  return 0;
-#endif //0
-}
-
-#if 0
-static inline PropertiesLine prepare_execmode_line(LttvProcessState *process)
-{
-  PropertiesLine prop_line;
-  prop_line.line_width = 1;
-  prop_line.style = GDK_LINE_SOLID;
-  prop_line.y = OVER;
-  //GdkColormap *colormap = gdk_colormap_get_system();
-  
-  /* color of line : execution mode of the process */
-  if(process->state->t == LTTV_STATE_USER_MODE)
-    prop_line.color = drawing_colors[COL_USER_MODE];
-  else if(process->state->t == LTTV_STATE_SYSCALL)
-    prop_line.color = drawing_colors[COL_SYSCALL];
-  else if(process->state->t == LTTV_STATE_TRAP)
-    prop_line.color = drawing_colors[COL_TRAP];
-  else if(process->state->t == LTTV_STATE_IRQ)
-    prop_line.color = drawing_colors[COL_IRQ];
-  else if(process->state->t == LTTV_STATE_MODE_UNKNOWN)
-    prop_line.color = drawing_colors[COL_MODE_UNKNOWN];
-  else
-    prop_line.color = drawing_colors[COL_WHITE];
-  //gdk_colormap_alloc_color(colormap,
-  //                         prop_line.color,
-  //                         FALSE,
-  //                         TRUE);
-  
-  return prop_line;
-
-}
-#endif //0
-
-
-/* before_execmode_hook
- * 
- * This function basically draw lines and icons. Two types of lines are drawn :
- * one small (3 pixels?) representing the state of the process and the second
- * type is thicker (10 pixels?) representing on which CPU a process is running
- * (and this only in running state).
- *
- * Extremums of the lines :
- * x_min : time of the last event context for this process kept in memory.
- * x_max : time of the current event.
- * y : middle of the process in the process list. The process is found in the
- * list, therefore is it's position in pixels.
- *
- * The choice of lines'color is defined by the context of the last event for this
- * process.
- */
-
-
-int before_execmode_hook(void *hook_data, void *call_data)
-{
-  LttvTraceHookByFacility *thf = (LttvTraceHookByFacility*)hook_data;
-  EventsRequest *events_request = (EventsRequest*)thf->hook_data;
-  ControlFlowData *control_flow_data = events_request->viewer_data;
-
-  LttvTracefileContext *tfc = (LttvTracefileContext *)call_data;
-
-  LttvTracefileState *tfs = (LttvTracefileState *)call_data;
-
-  LttvTraceState *ts = (LttvTraceState *)tfc->t_context;
-
-  LttEvent *e;
-  e = ltt_tracefile_get_event(tfc->tf);
+  e = ltt_tracefile_get_event(tfc->tf);
 
   LttTime evtime = ltt_event_time(e);
 
@@ -2178,93 +1015,117 @@ int before_execmode_hook(void *hook_data, void *call_data)
   return 0;
 }
 
-/* after_execmode_hook
+/* before_process_exit_hook
  * 
- * The draw after hook is called by the reading API to have a
- * particular event drawn on the screen.
+ * Draw lines for process event.
+ *
  * @param hook_data ControlFlowData structure of the viewer. 
  * @param call_data Event context.
  *
  * This function adds items to be drawn in a queue for each process.
  * 
  */
-#if 0
-int after_execmode_hook(void *hook_data, void *call_data)
-{
-  /**************** DOES NOTHING!! *************/
-  /* hook desactivated in drawing.c */
-  return 0;
 
 
+int before_process_exit_hook(void *hook_data, void *call_data)
+{
   LttvTraceHookByFacility *thf = (LttvTraceHookByFacility*)hook_data;
   EventsRequest *events_request = (EventsRequest*)thf->hook_data;
+
   ControlFlowData *control_flow_data = events_request->viewer_data;
 
   LttvTracefileContext *tfc = (LttvTracefileContext *)call_data;
 
   LttvTracefileState *tfs = (LttvTracefileState *)call_data;
 
+  LttvTraceState *ts = (LttvTraceState *)tfc->t_context;
+
   LttEvent *e;
   e = ltt_tracefile_get_event(tfc->tf);
 
   LttTime evtime = ltt_event_time(e);
 
   /* Add process to process list (if not present) */
-  LttvProcessState *process;
+  //LttvProcessState *process = tfs->process;
+  guint cpu = ltt_tracefile_num(tfc->tf);
+  LttvProcessState *process = ts->running_process[cpu];
+  guint pid = process->pid;
   LttTime birth;
   guint pl_height = 0;
   HashedProcessData *hashed_process_data = NULL;
 
   ProcessList *process_list = control_flow_data->process_list;
-
-  /* Find process pid_in in the list... */
-  process = tfs->process;
-  /* It should exist, because we are after the state update. */
+  
   g_assert(process != NULL);
 
-  guint pid = process->pid;
-
   birth = process->creation_time;
 
-  if(likely(process_list->current_hash_data[ltt_tracefile_num(tfc->tf)] != NULL)) {
-    hashed_process_data = process_list->current_hash_data[ltt_tracefile_num(tfc->tf)];
+  if(likely(process_list->current_hash_data[cpu] != NULL)) {
+    hashed_process_data = process_list->current_hash_data[cpu];
   } else {
     hashed_process_data = processlist_get_process_data(process_list,
-            pid,
-            process->last_cpu_index,
-            &birth,
-            tfc->t_context->index);
+          pid,
+          process->cpu,
+          &birth,
+          tfc->t_context->index);
     if(unlikely(hashed_process_data == NULL))
     {
       g_assert(pid == 0 || pid != process->ppid);
       /* Process not present */
       Drawing_t *drawing = control_flow_data->drawing;
-      const gchar *name = g_quark_to_string(process->name);
       ProcessInfo *process_info;
       processlist_add(process_list,
           drawing,
           pid,
-          process->last_cpu_index,
+          process->cpu,
           process->ppid,
           &birth,
           tfc->t_context->index,
-          name,
+          process->name,
           &pl_height,
           &process_info,
           &hashed_process_data);
-        gtk_widget_set_size_request(drawing->drawing_area,
-                                    -1,
-                                    pl_height);
-        gtk_widget_queue_draw(drawing->drawing_area);
+      gtk_widget_set_size_request(drawing->drawing_area,
+                                  -1,
+                                  pl_height);
+      gtk_widget_queue_draw(drawing->drawing_area);
     }
-    /* Set the current process */
-    process_list->current_hash_data[process->last_cpu_index] =
-                                               hashed_process_data;
   }
 
-  if(unlikely(ltt_time_compare(hashed_process_data->next_good_time,
-                          evtime) <= 0))
+  /* Now, the process is in the state hash and our own process hash.
+   * We definitely can draw the items related to the ending state.
+   */
+  
+  if(likely(ltt_time_compare(hashed_process_data->next_good_time,
+                      evtime) > 0))
   {
+    if(unlikely(hashed_process_data->x.middle_marked == FALSE)) {
+      TimeWindow time_window = 
+        lttvwindow_get_time_window(control_flow_data->tab);
+
+#ifdef EXTRA_CHECK
+      if(ltt_time_compare(evtime, time_window.start_time) == -1
+            || ltt_time_compare(evtime, time_window.end_time) == 1)
+                return;
+#endif //EXTRA_CHECK
+      Drawing_t *drawing = control_flow_data->drawing;
+      guint width = drawing->width;
+      guint x;
+      convert_time_to_pixels(
+                time_window,
+                evtime,
+                width,
+                &x);
+
+      /* Draw collision indicator */
+      gdk_gc_set_foreground(drawing->gc, &drawing_colors[COL_WHITE]);
+      gdk_draw_point(hashed_process_data->pixmap,
+                     drawing->gc,
+                     x,
+                     (hashed_process_data->height/2)-3);
+      hashed_process_data->x.middle_marked = TRUE;
+    }
+  } else {
     TimeWindow time_window = 
       lttvwindow_get_time_window(control_flow_data->tab);
 
@@ -2275,154 +1136,13 @@ int after_execmode_hook(void *hook_data, void *call_data)
 #endif //EXTRA_CHECK
     Drawing_t *drawing = control_flow_data->drawing;
     guint width = drawing->width;
-    guint new_x;
-    
+    guint x;
+
     convert_time_to_pixels(
         time_window,
         evtime,
         width,
-        &new_x);
-
-    if(hashed_process_data->x.middle != new_x) {
-      hashed_process_data->x.middle = new_x;
-      hashed_process_data->x.middle_used = FALSE;
-      hashed_process_data->x.middle_marked = FALSE;
-    }
-  }
-  return 0;
-}
-#endif //0
-
-
-
-/* before_process_exit_hook
- * 
- * Draw lines for process event.
- *
- * @param hook_data ControlFlowData structure of the viewer. 
- * @param call_data Event context.
- *
- * This function adds items to be drawn in a queue for each process.
- * 
- */
-
-
-int before_process_exit_hook(void *hook_data, void *call_data)
-{
-  LttvTraceHookByFacility *thf = (LttvTraceHookByFacility*)hook_data;
-  EventsRequest *events_request = (EventsRequest*)thf->hook_data;
-
-  ControlFlowData *control_flow_data = events_request->viewer_data;
-
-  LttvTracefileContext *tfc = (LttvTracefileContext *)call_data;
-
-  LttvTracefileState *tfs = (LttvTracefileState *)call_data;
-
-  LttvTraceState *ts = (LttvTraceState *)tfc->t_context;
-
-  LttEvent *e;
-  e = ltt_tracefile_get_event(tfc->tf);
-
-  LttTime evtime = ltt_event_time(e);
-
-  /* Add process to process list (if not present) */
-  //LttvProcessState *process = tfs->process;
-  guint cpu = ltt_tracefile_num(tfc->tf);
-  LttvProcessState *process = ts->running_process[cpu];
-  guint pid = process->pid;
-  LttTime birth;
-  guint pl_height = 0;
-  HashedProcessData *hashed_process_data = NULL;
-
-  ProcessList *process_list = control_flow_data->process_list;
-  
-  g_assert(process != NULL);
-
-  birth = process->creation_time;
-
-  if(likely(process_list->current_hash_data[cpu] != NULL)) {
-    hashed_process_data = process_list->current_hash_data[cpu];
-  } else {
-    hashed_process_data = processlist_get_process_data(process_list,
-          pid,
-          process->cpu,
-          &birth,
-          tfc->t_context->index);
-    if(unlikely(hashed_process_data == NULL))
-    {
-      g_assert(pid == 0 || pid != process->ppid);
-      /* Process not present */
-      Drawing_t *drawing = control_flow_data->drawing;
-      ProcessInfo *process_info;
-      processlist_add(process_list,
-          drawing,
-          pid,
-          process->cpu,
-          process->ppid,
-          &birth,
-          tfc->t_context->index,
-          process->name,
-          &pl_height,
-          &process_info,
-          &hashed_process_data);
-      gtk_widget_set_size_request(drawing->drawing_area,
-                                  -1,
-                                  pl_height);
-      gtk_widget_queue_draw(drawing->drawing_area);
-    }
-  }
-
-  /* Now, the process is in the state hash and our own process hash.
-   * We definitely can draw the items related to the ending state.
-   */
-  
-  if(likely(ltt_time_compare(hashed_process_data->next_good_time,
-                      evtime) > 0))
-  {
-    if(unlikely(hashed_process_data->x.middle_marked == FALSE)) {
-      TimeWindow time_window = 
-        lttvwindow_get_time_window(control_flow_data->tab);
-
-#ifdef EXTRA_CHECK
-      if(ltt_time_compare(evtime, time_window.start_time) == -1
-            || ltt_time_compare(evtime, time_window.end_time) == 1)
-                return;
-#endif //EXTRA_CHECK
-      Drawing_t *drawing = control_flow_data->drawing;
-      guint width = drawing->width;
-      guint x;
-      convert_time_to_pixels(
-                time_window,
-                evtime,
-                width,
-                &x);
-
-      /* Draw collision indicator */
-      gdk_gc_set_foreground(drawing->gc, &drawing_colors[COL_WHITE]);
-      gdk_draw_point(hashed_process_data->pixmap,
-                     drawing->gc,
-                     x,
-                     (hashed_process_data->height/2)-3);
-      hashed_process_data->x.middle_marked = TRUE;
-    }
-  } else {
-    TimeWindow time_window = 
-      lttvwindow_get_time_window(control_flow_data->tab);
-
-#ifdef EXTRA_CHECK
-    if(ltt_time_compare(evtime, time_window.start_time) == -1
-          || ltt_time_compare(evtime, time_window.end_time) == 1)
-              return;
-#endif //EXTRA_CHECK
-    Drawing_t *drawing = control_flow_data->drawing;
-    guint width = drawing->width;
-    guint x;
-
-    convert_time_to_pixels(
-        time_window,
-        evtime,
-        width,
-        &x);
+        &x);
 
 
     /* Jump over draw if we are at the same x position */
@@ -2614,342 +1334,15 @@ int before_process_release_hook(void *hook_data, void *call_data)
       convert_time_to_pixels(
           time_window,
           evtime,
-          width,
-          &x);
-
-
-      /* Jump over draw if we are at the same x position */
-      if(unlikely(x == hashed_process_data->x.middle &&
-             hashed_process_data->x.middle_used))
-      { 
-        if(unlikely(hashed_process_data->x.middle_marked == FALSE)) {
-          /* Draw collision indicator */
-          gdk_gc_set_foreground(drawing->gc, &drawing_colors[COL_WHITE]);
-          gdk_draw_point(hashed_process_data->pixmap,
-                         drawing->gc,
-                         x,
-                         (hashed_process_data->height/2)-3);
-          hashed_process_data->x.middle_marked = TRUE;
-        }
-        /* jump */
-      } else {
-        DrawContext draw_context;
-
-        /* Now create the drawing context that will be used to draw
-         * items related to the last state. */
-        draw_context.drawable = hashed_process_data->pixmap;
-        draw_context.gc = drawing->gc;
-        draw_context.pango_layout = drawing->pango_layout;
-        draw_context.drawinfo.start.x = hashed_process_data->x.middle;
-        draw_context.drawinfo.end.x = x;
-
-        draw_context.drawinfo.y.over = 1;
-        draw_context.drawinfo.y.middle = (hashed_process_data->height/2);
-        draw_context.drawinfo.y.under = hashed_process_data->height;
-
-        draw_context.drawinfo.start.offset.over = 0;
-        draw_context.drawinfo.start.offset.middle = 0;
-        draw_context.drawinfo.start.offset.under = 0;
-        draw_context.drawinfo.end.offset.over = 0;
-        draw_context.drawinfo.end.offset.middle = 0;
-        draw_context.drawinfo.end.offset.under = 0;
-
-        {
-          /* Draw the line */
-          PropertiesLine prop_line = prepare_s_e_line(process);
-          draw_line((void*)&prop_line, (void*)&draw_context);
-
-        }
-        /* become the last x position */
-        hashed_process_data->x.middle = x;
-        hashed_process_data->x.middle_used = TRUE;
-        hashed_process_data->x.middle_marked = FALSE;
-
-        /* Calculate the next good time */
-        convert_pixels_to_time(width, x+1, time_window,
-                               &hashed_process_data->next_good_time);
-      }
-    }
-  }
-
-  return 0;
-}
-
-
-
-
-
-
-
-
-#if 0
-/* before_process_hook
- * 
- * Draw lines for process event.
- *
- * @param hook_data ControlFlowData structure of the viewer. 
- * @param call_data Event context.
- *
- * This function adds items to be drawn in a queue for each process.
- * 
- */
-int before_process_hook(void *hook_data, void *call_data)
-{
-  LttvTraceHookByFacility *thf = (LttvTraceHookByFacility*)hook_data;
-  EventsRequest *events_request = (EventsRequest*)thf->hook_data;
-  ControlFlowData *control_flow_data = events_request->viewer_data;
-
-  LttvTracefileContext *tfc = (LttvTracefileContext *)call_data;
-
-  LttvTracefileState *tfs = (LttvTracefileState *)call_data;
-
-  LttEvent *e;
-  e = ltt_tracefile_get_event(tfc->tf);
-
-  LttTime evtime = ltt_event_time(e);
-
-  guint sub_id;
-  {
-    LttField *f = ltt_event_field(e);
-    LttField *element;
-    element = ltt_field_member(f,0);
-    sub_id = ltt_event_get_long_unsigned(e,element);
-  }
-
-  if(sub_id == 3) { /* exit */
-
-    /* Add process to process list (if not present) */
-    LttvProcessState *process = tfs->process;
-    guint pid = process->pid;
-    LttTime birth;
-    guint pl_height = 0;
-    HashedProcessData *hashed_process_data = NULL;
-
-    ProcessList *process_list = control_flow_data->process_list;
-    
-    g_assert(process != NULL);
-
-    birth = process->creation_time;
-
-    if(likely(process_list->current_hash_data[tfc->index] != NULL)) {
-      hashed_process_data = process_list->current_hash_data[tfc->index];
-    } else {
-      hashed_process_data = processlist_get_process_data(process_list,
-            pid,
-            process->last_cpu_index,
-            &birth,
-            tfc->t_context->index);
-      if(unlikely(hashed_process_data == NULL))
-      {
-        g_assert(pid == 0 || pid != process->ppid);
-        /* Process not present */
-        Drawing_t *drawing = control_flow_data->drawing;
-        const gchar *name = g_quark_to_string(process->name);
-        ProcessInfo *process_info;
-        processlist_add(process_list,
-            drawing,
-            pid,
-            process->last_cpu_index,
-            process->ppid,
-            &birth,
-            tfc->t_context->index,
-            name,
-            &pl_height,
-            &process_info,
-            &hashed_process_data);
-        gtk_widget_set_size_request(drawing->drawing_area,
-                                    -1,
-                                    pl_height);
-        gtk_widget_queue_draw(drawing->drawing_area);
-      }
-    }
-
-    /* Now, the process is in the state hash and our own process hash.
-     * We definitely can draw the items related to the ending state.
-     */
-    
-    if(likely(ltt_time_compare(hashed_process_data->next_good_time,
-                        evtime) > 0))
-    {
-      if(unlikely(hashed_process_data->x.middle_marked == FALSE)) {
-        TimeWindow time_window = 
-          lttvwindow_get_time_window(control_flow_data->tab);
-
-#ifdef EXTRA_CHECK
-        if(ltt_time_compare(evtime, time_window.start_time) == -1
-              || ltt_time_compare(evtime, time_window.end_time) == 1)
-                  return;
-#endif //EXTRA_CHECK
-        Drawing_t *drawing = control_flow_data->drawing;
-        guint width = drawing->width;
-        guint x;
-        convert_time_to_pixels(
-                  time_window,
-                  evtime,
-                  width,
-                  &x);
-
-        /* Draw collision indicator */
-        gdk_gc_set_foreground(drawing->gc, &drawing_colors[COL_WHITE]);
-        gdk_draw_point(hashed_process_data->pixmap,
-                       drawing->gc,
-                       x,
-                       (hashed_process_data->height/2)-3);
-        hashed_process_data->x.middle_marked = TRUE;
-      }
-    } else {
-      TimeWindow time_window = 
-        lttvwindow_get_time_window(control_flow_data->tab);
-
-#ifdef EXTRA_CHECK
-      if(ltt_time_compare(evtime, time_window.start_time) == -1
-            || ltt_time_compare(evtime, time_window.end_time) == 1)
-                return;
-#endif //EXTRA_CHECK
-      Drawing_t *drawing = control_flow_data->drawing;
-      guint width = drawing->width;
-      guint x;
-
-      convert_time_to_pixels(
-          time_window,
-          evtime,
-          width,
-          &x);
-
-
-      /* Jump over draw if we are at the same x position */
-      if(unlikely(x == hashed_process_data->x.middle &&
-             hashed_process_data->x.middle_used))
-      { 
-        if(unlikely(hashed_process_data->x.middle_marked == FALSE)) {
-          /* Draw collision indicator */
-          gdk_gc_set_foreground(drawing->gc, &drawing_colors[COL_WHITE]);
-          gdk_draw_point(hashed_process_data->pixmap,
-                         drawing->gc,
-                         x,
-                         (hashed_process_data->height/2)-3);
-          hashed_process_data->x.middle_marked = TRUE;
-        }
-        /* jump */
-      } else {
-        DrawContext draw_context;
-
-        /* Now create the drawing context that will be used to draw
-         * items related to the last state. */
-        draw_context.drawable = hashed_process_data->pixmap;
-        draw_context.gc = drawing->gc;
-        draw_context.pango_layout = drawing->pango_layout;
-        draw_context.drawinfo.start.x = hashed_process_data->x.middle;
-        draw_context.drawinfo.end.x = x;
-
-        draw_context.drawinfo.y.over = 1;
-        draw_context.drawinfo.y.middle = (hashed_process_data->height/2);
-        draw_context.drawinfo.y.under = hashed_process_data->height;
-
-        draw_context.drawinfo.start.offset.over = 0;
-        draw_context.drawinfo.start.offset.middle = 0;
-        draw_context.drawinfo.start.offset.under = 0;
-        draw_context.drawinfo.end.offset.over = 0;
-        draw_context.drawinfo.end.offset.middle = 0;
-        draw_context.drawinfo.end.offset.under = 0;
-
-        {
-          /* Draw the line */
-          PropertiesLine prop_line = prepare_s_e_line(process);
-          draw_line((void*)&prop_line, (void*)&draw_context);
-
-        }
-        /* become the last x position */
-        hashed_process_data->x.middle = x;
-        hashed_process_data->x.middle_used = TRUE;
-        hashed_process_data->x.middle_marked = FALSE;
-
-        /* Calculate the next good time */
-        convert_pixels_to_time(width, x+1, time_window,
-                               &hashed_process_data->next_good_time);
-      }
-    }
-
-  } else if(sub_id == 7) /* release */ {
-
-    guint pid;
-    {
-      LttField *f = ltt_event_field(e);
-      LttField *element;
-      element = ltt_field_member(f,1);
-      pid = ltt_event_get_long_unsigned(e,element);
-    }
-
-    /* Add process to process list (if not present) */
-    /* Don't care about the process if it's not in the state hash already :
-     * that means a process that has never done anything in the trace and
-     * unknown suddently gets destroyed : no state meaningful to show. */
-    LttvProcessState *process = lttv_state_find_process(tfs, pid);
-
-    if(process != NULL) {
-      LttTime birth;
-      guint pl_height = 0;
-      HashedProcessData *hashed_process_data = NULL;
-
-      ProcessList *process_list = control_flow_data->process_list;
-      
-      birth = process->creation_time;
-
-      /* Cannot use current process : this event happens on another process,
-       * action done by the parent. */
-      hashed_process_data = processlist_get_process_data(process_list,
-            pid,
-            process->last_cpu_index,
-            &birth,
-            tfc->t_context->index);
-      if(unlikely(hashed_process_data == NULL))
-      {
-        g_assert(pid == 0 || pid != process->ppid);
-        /* Process not present */
-        Drawing_t *drawing = control_flow_data->drawing;
-        ProcessInfo *process_info;
-        processlist_add(process_list,
-            drawing,
-            pid,
-            process->last_cpu_index,
-            process->ppid,
-            &birth,
-            tfc->t_context->index,
-            process->name,
-            &pl_height,
-            &process_info,
-            &hashed_process_data);
-        gtk_widget_set_size_request(drawing->drawing_area,
-                                    -1,
-                                    pl_height);
-        gtk_widget_queue_draw(drawing->drawing_area);
-      }
-
-      /* Now, the process is in the state hash and our own process hash.
-       * We definitely can draw the items related to the ending state.
-       */
-      
-      if(likely(ltt_time_compare(hashed_process_data->next_good_time,
-                          evtime) > 0))
-      {
-        if(unlikely(hashed_process_data->x.middle_marked == FALSE)) {
-          TimeWindow time_window = 
-            lttvwindow_get_time_window(control_flow_data->tab);
+          width,
+          &x);
 
-#ifdef EXTRA_CHECK
-          if(ltt_time_compare(evtime, time_window.start_time) == -1
-                || ltt_time_compare(evtime, time_window.end_time) == 1)
-                    return;
-#endif //EXTRA_CHECK
-          Drawing_t *drawing = control_flow_data->drawing;
-          guint width = drawing->width;
-          guint x;
-          convert_time_to_pixels(
-                    time_window,
-                    evtime,
-                    width,
-                    &x);
 
+      /* Jump over draw if we are at the same x position */
+      if(unlikely(x == hashed_process_data->x.middle &&
+             hashed_process_data->x.middle_used))
+      { 
+        if(unlikely(hashed_process_data->x.middle_marked == FALSE)) {
           /* Draw collision indicator */
           gdk_gc_set_foreground(drawing->gc, &drawing_colors[COL_WHITE]);
           gdk_draw_point(hashed_process_data->pixmap,
@@ -2958,86 +1351,51 @@ int before_process_hook(void *hook_data, void *call_data)
                          (hashed_process_data->height/2)-3);
           hashed_process_data->x.middle_marked = TRUE;
         }
+        /* jump */
       } else {
-        TimeWindow time_window = 
-          lttvwindow_get_time_window(control_flow_data->tab);
-
-#ifdef EXTRA_CHECK
-        if(ltt_time_compare(evtime, time_window.start_time) == -1
-              || ltt_time_compare(evtime, time_window.end_time) == 1)
-                  return;
-#endif //EXTRA_CHECK
-        Drawing_t *drawing = control_flow_data->drawing;
-        guint width = drawing->width;
-        guint x;
-
-        convert_time_to_pixels(
-            time_window,
-            evtime,
-            width,
-            &x);
-
-
-        /* Jump over draw if we are at the same x position */
-        if(unlikely(x == hashed_process_data->x.middle &&
-               hashed_process_data->x.middle_used))
-        { 
-          if(unlikely(hashed_process_data->x.middle_marked == FALSE)) {
-            /* Draw collision indicator */
-            gdk_gc_set_foreground(drawing->gc, &drawing_colors[COL_WHITE]);
-            gdk_draw_point(hashed_process_data->pixmap,
-                           drawing->gc,
-                           x,
-                           (hashed_process_data->height/2)-3);
-            hashed_process_data->x.middle_marked = TRUE;
-          }
-          /* jump */
-        } else {
-          DrawContext draw_context;
-
-          /* Now create the drawing context that will be used to draw
-           * items related to the last state. */
-          draw_context.drawable = hashed_process_data->pixmap;
-          draw_context.gc = drawing->gc;
-          draw_context.pango_layout = drawing->pango_layout;
-          draw_context.drawinfo.start.x = hashed_process_data->x.middle;
-          draw_context.drawinfo.end.x = x;
+        DrawContext draw_context;
 
-          draw_context.drawinfo.y.over = 1;
-          draw_context.drawinfo.y.middle = (hashed_process_data->height/2);
-          draw_context.drawinfo.y.under = hashed_process_data->height;
+        /* Now create the drawing context that will be used to draw
+         * items related to the last state. */
+        draw_context.drawable = hashed_process_data->pixmap;
+        draw_context.gc = drawing->gc;
+        draw_context.pango_layout = drawing->pango_layout;
+        draw_context.drawinfo.start.x = hashed_process_data->x.middle;
+        draw_context.drawinfo.end.x = x;
 
-          draw_context.drawinfo.start.offset.over = 0;
-          draw_context.drawinfo.start.offset.middle = 0;
-          draw_context.drawinfo.start.offset.under = 0;
-          draw_context.drawinfo.end.offset.over = 0;
-          draw_context.drawinfo.end.offset.middle = 0;
-          draw_context.drawinfo.end.offset.under = 0;
+        draw_context.drawinfo.y.over = 1;
+        draw_context.drawinfo.y.middle = (hashed_process_data->height/2);
+        draw_context.drawinfo.y.under = hashed_process_data->height;
 
-          {
-            /* Draw the line */
-            PropertiesLine prop_line = prepare_s_e_line(process);
-            draw_line((void*)&prop_line, (void*)&draw_context);
+        draw_context.drawinfo.start.offset.over = 0;
+        draw_context.drawinfo.start.offset.middle = 0;
+        draw_context.drawinfo.start.offset.under = 0;
+        draw_context.drawinfo.end.offset.over = 0;
+        draw_context.drawinfo.end.offset.middle = 0;
+        draw_context.drawinfo.end.offset.under = 0;
 
-          }
-          /* become the last x position */
-          hashed_process_data->x.middle = x;
-          hashed_process_data->x.middle_used = TRUE;
-          hashed_process_data->x.middle_marked = FALSE;
+        {
+          /* Draw the line */
+          PropertiesLine prop_line = prepare_s_e_line(process);
+          draw_line((void*)&prop_line, (void*)&draw_context);
 
-          /* Calculate the next good time */
-          convert_pixels_to_time(width, x+1, time_window,
-                                 &hashed_process_data->next_good_time);
         }
+        /* become the last x position */
+        hashed_process_data->x.middle = x;
+        hashed_process_data->x.middle_used = TRUE;
+        hashed_process_data->x.middle_marked = FALSE;
+
+        /* Calculate the next good time */
+        convert_pixels_to_time(width, x+1, time_window,
+                               &hashed_process_data->next_good_time);
       }
     }
-
   }
-  return 0;
 
+  return 0;
 }
 
-#endif //0
+
 
 
 
@@ -3272,217 +1630,6 @@ int after_process_exit_hook(void *hook_data, void *call_data)
 }
 
 
-#if 0
-
-/* after_process_hook
- * 
- * Create the processlist entry for the child process. Put the last
- * position in x at the current time value.
- *
- * @param hook_data ControlFlowData structure of the viewer. 
- * @param call_data Event context.
- *
- * This function adds items to be drawn in a queue for each process.
- * 
- */
-int after_process_hook(void *hook_data, void *call_data)
-{
-  LttvTraceHookByFacility *thf = (LttvTraceHookByFacility*)hook_data;
-  EventsRequest *events_request = (EventsRequest*)thf->hook_data;
-  ControlFlowData *control_flow_data = events_request->viewer_data;
-
-  LttvTracefileContext *tfc = (LttvTracefileContext *)call_data;
-
-  LttvTracefileState *tfs = (LttvTracefileState *)call_data;
-
-  LttEvent *e;
-  e = ltt_tracefile_get_event(tfc->tf);
-
-  LttTime evtime = ltt_event_time(e);
-
-  guint sub_id;
-  guint param1;
-  {
-    LttField *f = ltt_event_field(e);
-    LttField *element;
-    element = ltt_field_member(f,0);
-    sub_id = ltt_event_get_long_unsigned(e,element);
-    element = ltt_field_member(f,1);
-    param1 = ltt_event_get_long_unsigned(e,element);
-  }
-
-  if(sub_id == 2) { /* fork */
-    
-    guint child_pid = param1;
-    /* Add process to process list (if not present) */
-    LttvProcessState *process_child;
-    LttTime birth;
-    guint pl_height = 0;
-    HashedProcessData *hashed_process_data_child = NULL;
-
-    ProcessList *process_list = control_flow_data->process_list;
-
-    /* Find child in the list... */
-    process_child = lttv_state_find_process(tfs, child_pid);
-    /* It should exist, because we are after the state update. */
-    g_assert(process_child != NULL);
-
-    birth = process_child->creation_time;
-
-    /* Cannot use current process, because this action is done by the parent
-     * on its child. */
-    hashed_process_data_child = processlist_get_process_data(process_list,
-            child_pid,
-            process_child->last_cpu_index,
-            &birth,
-            tfc->t_context->index);
-    if(likely(hashed_process_data_child == NULL))
-    {
-      g_assert(child_pid == 0 || child_pid != process_child->ppid);
-      /* Process not present */
-      Drawing_t *drawing = control_flow_data->drawing;
-      const gchar *name = g_quark_to_string(process_child->name);
-      ProcessInfo *process_info;
-      processlist_add(process_list,
-          drawing,
-          child_pid,
-          process_child->last_cpu_index,
-          process_child->ppid,
-          &birth,
-          tfc->t_context->index,
-          name,
-          &pl_height,
-          &process_info,
-          &hashed_process_data_child);
-        gtk_widget_set_size_request(drawing->drawing_area,
-                                    -1,
-                                    pl_height);
-        gtk_widget_queue_draw(drawing->drawing_area);
-    }
-
-
-    if(likely(ltt_time_compare(hashed_process_data_child->next_good_time,
-                          evtime) <= 0))
-    {
-      TimeWindow time_window = 
-        lttvwindow_get_time_window(control_flow_data->tab);
-
-#ifdef EXTRA_CHECK
-      if(ltt_time_compare(evtime, time_window.start_time) == -1
-            || ltt_time_compare(evtime, time_window.end_time) == 1)
-                return;
-#endif //EXTRA_CHECK
-      Drawing_t *drawing = control_flow_data->drawing;
-      guint width = drawing->width;
-      guint new_x;
-      convert_time_to_pixels(
-          time_window,
-          evtime,
-          width,
-          &new_x);
-
-      if(likely(hashed_process_data_child->x.over != new_x)) {
-        hashed_process_data_child->x.over = new_x;
-        hashed_process_data_child->x.over_used = FALSE;
-        hashed_process_data_child->x.over_marked = FALSE;
-      }
-      if(likely(hashed_process_data_child->x.middle != new_x)) {
-        hashed_process_data_child->x.middle = new_x;
-        hashed_process_data_child->x.middle_used = FALSE;
-        hashed_process_data_child->x.middle_marked = FALSE;
-      }
-      if(likely(hashed_process_data_child->x.under != new_x)) {
-        hashed_process_data_child->x.under = new_x;
-        hashed_process_data_child->x.under_used = FALSE;
-        hashed_process_data_child->x.under_marked = FALSE;
-      }
-    }
-
-  } else if(sub_id == 3) { /* exit */
-
-    /* Add process to process list (if not present) */
-    LttvProcessState *process = tfs->process;
-    guint pid = process->pid;
-    LttTime birth;
-    guint pl_height = 0;
-    HashedProcessData *hashed_process_data = NULL;
-
-    ProcessList *process_list = control_flow_data->process_list;
-
-    /* It should exist, because we are after the state update. */
-    g_assert(process != NULL);
-
-    birth = process->creation_time;
-
-    if(likely(process_list->current_hash_data[ltt_tracefile_num(tfc->tf)] != NULL) ){
-      hashed_process_data = process_list->current_hash_data[ltt_tracefile_num(tfc->tf)];
-    } else {
-      hashed_process_data = processlist_get_process_data(process_list,
-              pid,
-              process->last_cpu_index,
-              &birth,
-              tfc->t_context->index);
-      if(unlikely(hashed_process_data == NULL))
-      {
-        g_assert(pid == 0 || pid != process->ppid);
-        /* Process not present */
-        Drawing_t *drawing = control_flow_data->drawing;
-        const gchar *name = g_quark_to_string(process->name);
-        ProcessInfo *process_info;
-        processlist_add(process_list,
-            drawing,
-            pid,
-            process->last_cpu_index,
-            process->ppid,
-            &birth,
-            tfc->t_context->index,
-            name,
-            &pl_height,
-            &process_info,
-            &hashed_process_data);
-        gtk_widget_set_size_request(drawing->drawing_area,
-                                    -1,
-                                    pl_height);
-        gtk_widget_queue_draw(drawing->drawing_area);
-      }
-
-      /* Set the current process */
-      process_list->current_hash_data[process->last_cpu_index] =
-                                               hashed_process_data;
-    }
-
-    if(unlikely(ltt_time_compare(hashed_process_data->next_good_time,
-                          evtime) <= 0))
-    {
-      TimeWindow time_window = 
-        lttvwindow_get_time_window(control_flow_data->tab);
-
-#ifdef EXTRA_CHECK
-      if(ltt_time_compare(evtime, time_window.start_time) == -1
-            || ltt_time_compare(evtime, time_window.end_time) == 1)
-                return;
-#endif //EXTRA_CHECK
-      Drawing_t *drawing = control_flow_data->drawing;
-      guint width = drawing->width;
-      guint new_x;
-      convert_time_to_pixels(
-          time_window,
-          evtime,
-          width,
-          &new_x);
-      if(unlikely(hashed_process_data->x.middle != new_x)) {
-        hashed_process_data->x.middle = new_x;
-        hashed_process_data->x.middle_used = FALSE;
-        hashed_process_data->x.middle_marked = FALSE;
-      }
-    }
-
-  }
-  return 0;
-
-}
-#endif //0
-
 /* Get the filename of the process to print */
 int after_fs_exec_hook(void *hook_data, void *call_data)
 {
@@ -3814,7 +1961,7 @@ gint redraw_notify(void *hook_data, void *call_data)
         -1);
 
   gtk_widget_queue_draw(drawing->drawing_area);
-
+  
   if(drawing->damage_begin < drawing->damage_end)
   {
     drawing_data_request(drawing,
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