control flow view works (state computation disabled)
[lttv.git] / ltt / branches / poly / lttv / modules / gui / controlflow / eventhooks.c
index ce655eba0eca6796695228508cc54d3c28e5397f..e5b66cc9722b438059ed23d72dbcd74084c7bfe7 100644 (file)
@@ -45,6 +45,9 @@
  * line/background.
  */
 
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
 
 //#define PANGO_ENABLE_BACKEND
 #include <gtk/gtk.h>
@@ -59,6 +62,7 @@
 #include <ltt/event.h>
 #include <ltt/time.h>
 #include <ltt/type.h>
+#include <ltt/trace.h>
 
 #include <lttv/lttv.h>
 #include <lttv/hook.h>
 #include "cfv.h"
 #include "processlist.h"
 #include "drawing.h"
-#include "cfv-private.h"
 
 
 #define MAX_PATH_LEN 256
 
-
 #if 0
 typedef struct _ProcessAddClosure {
   ControlFlowData *cfd;
@@ -142,8 +144,6 @@ gint background_ready(void *hook_data, void *call_data)
 {
   ControlFlowData *control_flow_data = (ControlFlowData *)hook_data;
   LttvTrace *trace = (LttvTrace*)call_data;
-  LttvTracesetContext *tsc =
-        lttvwindow_get_traceset_context(control_flow_data->tab);
 
   control_flow_data->background_info_waiting--;
   
@@ -152,6 +152,9 @@ gint background_ready(void *hook_data, void *call_data)
 
     drawing_clear(control_flow_data->drawing);
     processlist_clear(control_flow_data->process_list);
+    gtk_widget_set_size_request(
+      control_flow_data->drawing->drawing_area,
+                -1, processlist_get_height(control_flow_data->process_list));
     redraw_notify(control_flow_data, NULL);
   }
 
@@ -236,7 +239,6 @@ h_guicontrolflow(Tab *tab)
   
   control_flow_data->tab = tab;
   
-  //g_debug("time width2 : %u",time_window->time_width);
   // Unreg done in the GuiControlFlow_Destructor
   lttvwindow_register_traceset_notify(tab,
         traceset_notify,
@@ -254,7 +256,7 @@ h_guicontrolflow(Tab *tab)
   lttvwindow_register_continue_notify(tab,
                                       continue_notify,
                                       control_flow_data);
-  request_background_data(control_flow_data);
+  //request_background_data(control_flow_data);
   
 
   return guicontrolflow_get_widget(control_flow_data) ;
@@ -268,10 +270,11 @@ int event_selected_hook(void *hook_data, void *call_data)
 
   g_debug("DEBUG : event selected by main window : %u", *event_number);
   
+  return 0;
 }
 
 /* Function that selects the color of status&exemode line */
-static __inline__ PropertiesLine prepare_s_e_line(LttvProcessState *process)
+static inline PropertiesLine prepare_s_e_line(LttvProcessState *process)
 {
   PropertiesLine prop_line;
   prop_line.line_width = 2;
@@ -279,9 +282,6 @@ static __inline__ PropertiesLine prepare_s_e_line(LttvProcessState *process)
   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));
-
   if(process->state->s == LTTV_STATE_RUN) {
     if(process->state->t == LTTV_STATE_USER_MODE)
       prop_line.color = drawing_colors[COL_RUN_USER_MODE];
@@ -318,7 +318,7 @@ static __inline__ PropertiesLine prepare_s_e_line(LttvProcessState *process)
 }
 
 #if 0
-static __inline__ PropertiesLine prepare_status_line(LttvProcessState *process)
+static inline PropertiesLine prepare_status_line(LttvProcessState *process)
 {
   PropertiesLine prop_line;
   prop_line.line_width = 2;
@@ -378,22 +378,19 @@ static __inline__ PropertiesLine prepare_status_line(LttvProcessState *process)
 
 int before_schedchange_hook(void *hook_data, void *call_data)
 {
-  EventsRequest *events_request = (EventsRequest*)hook_data;
+  LttvTraceHookByFacility *thf = (LttvTraceHookByFacility*)hook_data;
+  EventsRequest *events_request = (EventsRequest*)thf->hook_data;
   ControlFlowData *control_flow_data = events_request->viewer_data;
-  Drawing_t *drawing = control_flow_data->drawing;
 
   LttvTracefileContext *tfc = (LttvTracefileContext *)call_data;
 
   LttvTracefileState *tfs = (LttvTracefileState *)call_data;
-  LttvTraceState *ts =(LttvTraceState *)((LttvTracefileContext*)tfs)->t_context;
 
   LttEvent *e;
-  e = tfc->e;
+  e = ltt_tracefile_get_event(tfc->tf);
 
   LttTime evtime = ltt_event_time(e);
 
-  guint width = drawing->width;
-
   /* we are in a schedchange, before the state update. We must draw the
    * items corresponding to the state before it changes : now is the right
    * time to do it.
@@ -402,13 +399,8 @@ int before_schedchange_hook(void *hook_data, void *call_data)
   guint pid_out;
   guint pid_in;
   {
-    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);
+    pid_out = ltt_event_get_long_unsigned(e, thf->f1);
+    pid_in = ltt_event_get_long_unsigned(e, thf->f2);
   }
   
   { 
@@ -430,7 +422,7 @@ int before_schedchange_hook(void *hook_data, void *call_data)
        * or add it, and draw its items.
        */
        /* Add process to process list (if not present) */
-      guint y = 0, height = 0, pl_height = 0;
+      guint pl_height = 0;
       HashedProcessData *hashed_process_data = NULL;
       ProcessList *process_list = control_flow_data->process_list;
       LttTime birth = process->creation_time;
@@ -446,7 +438,9 @@ int before_schedchange_hook(void *hook_data, void *call_data)
         const gchar *name = g_quark_to_string(process->name);
         /* Process not present */
         ProcessInfo *process_info;
+        Drawing_t *drawing = control_flow_data->drawing;
         processlist_add(process_list,
+            drawing,
             pid_out,
             process->last_cpu_index,
             process->ppid,
@@ -456,31 +450,21 @@ int before_schedchange_hook(void *hook_data, void *call_data)
             &pl_height,
             &process_info,
             &hashed_process_data);
-        processlist_get_pixels_from_data(process_list,
-                hashed_process_data,
-                &y,
-                &height);
-        drawing_insert_square( drawing, y, height);
+        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.
        */
       
-      /* Check if the x position is unset. In can have been left unset by
-       * a draw closure from a after chunk hook. This should never happen,
-       * because it must be set by before chunk hook to the damage_begin
-       * value.
-       */
-      g_assert(hashed_process_data->x.middle != -1);
       if(ltt_time_compare(hashed_process_data->next_good_time,
                           evtime) > 0)
       {
         if(hashed_process_data->x.middle_marked == FALSE) {
-           processlist_get_pixels_from_data(process_list,
-                      hashed_process_data,
-                      &y,
-                      &height);
     
           TimeWindow time_window = 
             lttvwindow_get_time_window(control_flow_data->tab);
@@ -489,7 +473,8 @@ int before_schedchange_hook(void *hook_data, void *call_data)
                 || 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,
@@ -499,19 +484,13 @@ int before_schedchange_hook(void *hook_data, void *call_data)
 
           /* Draw collision indicator */
           gdk_gc_set_foreground(drawing->gc, &drawing_colors[COL_WHITE]);
-          gdk_draw_point(drawing->pixmap,
+          gdk_draw_point(hashed_process_data->pixmap,
                          drawing->gc,
                          x,
-                         y+(height/2)-3);
+                         (hashed_process_data->height/2)-3);
           hashed_process_data->x.middle_marked = TRUE;
         }
       } else {
-         processlist_get_pixels_from_data(process_list,
-                      hashed_process_data,
-                      &y,
-                      &height);
-
         TimeWindow time_window = 
           lttvwindow_get_time_window(control_flow_data->tab);
 #ifdef EXTRA_CHECK
@@ -519,7 +498,8 @@ int before_schedchange_hook(void *hook_data, void *call_data)
               || 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,
@@ -535,10 +515,10 @@ int before_schedchange_hook(void *hook_data, void *call_data)
           if(hashed_process_data->x.middle_marked == FALSE) {
             /* Draw collision indicator */
             gdk_gc_set_foreground(drawing->gc, &drawing_colors[COL_WHITE]);
-            gdk_draw_point(drawing->pixmap,
+            gdk_draw_point(hashed_process_data->pixmap,
                            drawing->gc,
                            x,
-                           y+(height/2)-3);
+                           (hashed_process_data->height/2)-3);
             hashed_process_data->x.middle_marked = TRUE;
           }
           /* jump */
@@ -547,15 +527,15 @@ int before_schedchange_hook(void *hook_data, void *call_data)
 
           /* Now create the drawing context that will be used to draw
            * items related to the last state. */
-          draw_context.drawable = drawing->pixmap;
+          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 = y+1;
-          draw_context.drawinfo.y.middle = y+(height/2);
-          draw_context.drawinfo.y.under = y+height;
+          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;
@@ -598,7 +578,7 @@ int before_schedchange_hook(void *hook_data, void *call_data)
        * or add it, and draw its items.
        */
        /* Add process to process list (if not present) */
-      guint y = 0, height = 0, pl_height = 0;
+      guint pl_height = 0;
       HashedProcessData *hashed_process_data = NULL;
       ProcessList *process_list = control_flow_data->process_list;
       LttTime birth = process->creation_time;
@@ -614,7 +594,9 @@ int before_schedchange_hook(void *hook_data, void *call_data)
         const gchar *name = g_quark_to_string(process->name);
         /* Process not present */
         ProcessInfo *process_info;
+        Drawing_t *drawing = control_flow_data->drawing;
         processlist_add(process_list,
+            drawing,
             pid_in,
             process->last_cpu_index,
             process->ppid,
@@ -624,11 +606,11 @@ int before_schedchange_hook(void *hook_data, void *call_data)
             &pl_height,
             &process_info,
             &hashed_process_data);
-        processlist_get_pixels_from_data(process_list,
-                hashed_process_data,
-                &y,
-                &height);
-        drawing_insert_square( drawing, y, height);
+        gtk_widget_set_size_request(drawing->drawing_area,
+                                    -1,
+                                    pl_height);
+        gtk_widget_queue_draw(drawing->drawing_area);
+
       }
       //We could set the current process and hash here, but will be done
       //by after schedchange hook
@@ -637,22 +619,11 @@ int before_schedchange_hook(void *hook_data, void *call_data)
        * We definitely can draw the items related to the ending state.
        */
       
-      /* Check if the x position is unset. In can have been left unset by
-       * a draw closure from a after chunk hook. This should never happen,
-       * because it must be set by before chunk hook to the damage_begin
-       * value.
-       */
-      g_assert(hashed_process_data->x.middle != -1);
-
       if(ltt_time_compare(hashed_process_data->next_good_time,
                           evtime) > 0)
       {
         if(hashed_process_data->x.middle_marked == FALSE) {
 
-          processlist_get_pixels_from_data(process_list,
-                  hashed_process_data,
-                  &y,
-                  &height);
           TimeWindow time_window = 
             lttvwindow_get_time_window(control_flow_data->tab);
 #ifdef EXTRA_CHECK
@@ -660,6 +631,8 @@ int before_schedchange_hook(void *hook_data, void *call_data)
                 || 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,
@@ -669,17 +642,13 @@ int before_schedchange_hook(void *hook_data, void *call_data)
 
           /* Draw collision indicator */
           gdk_gc_set_foreground(drawing->gc, &drawing_colors[COL_WHITE]);
-          gdk_draw_point(drawing->pixmap,
+          gdk_draw_point(hashed_process_data->pixmap,
                          drawing->gc,
                          x,
-                         y+(height/2)-3);
+                         (hashed_process_data->height/2)-3);
           hashed_process_data->x.middle_marked = TRUE;
         }
       } else {
-        processlist_get_pixels_from_data(process_list,
-                hashed_process_data,
-                &y,
-                &height);
         TimeWindow time_window = 
           lttvwindow_get_time_window(control_flow_data->tab);
 #ifdef EXTRA_CHECK
@@ -687,6 +656,8 @@ int before_schedchange_hook(void *hook_data, void *call_data)
               || 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(
@@ -703,10 +674,10 @@ int before_schedchange_hook(void *hook_data, void *call_data)
           if(hashed_process_data->x.middle_marked == FALSE) {
             /* Draw collision indicator */
             gdk_gc_set_foreground(drawing->gc, &drawing_colors[COL_WHITE]);
-            gdk_draw_point(drawing->pixmap,
+            gdk_draw_point(hashed_process_data->pixmap,
                            drawing->gc,
                            x,
-                           y+(height/2)-3);
+                           (hashed_process_data->height/2)-3);
             hashed_process_data->x.middle_marked = TRUE;
           }
           /* jump */
@@ -715,15 +686,15 @@ int before_schedchange_hook(void *hook_data, void *call_data)
 
           /* Now create the drawing context that will be used to draw
            * items related to the last state. */
-          draw_context.drawable = drawing->pixmap;
+          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 = y+1;
-          draw_context.drawinfo.y.middle = y+(height/2);
-          draw_context.drawinfo.y.under = y+height;
+          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;
@@ -919,7 +890,6 @@ int before_schedchange_hook(void *hook_data, void *call_data)
                             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);
     }
   
@@ -945,7 +915,7 @@ int before_schedchange_hook(void *hook_data, void *call_data)
       PropertiesBG prop_bg;
       prop_bg.color = g_new(GdkColor,1);
       
-      switch(tfc->index) {
+      switch(ltt_tracefile_num(tfc->tf)) {
         case 0:
           prop_bg.color->red = 0x1515;
           prop_bg.color->green = 0x1515;
@@ -1168,7 +1138,7 @@ int before_schedchange_hook(void *hook_data, void *call_data)
       PropertiesBG prop_bg;
       prop_bg.color = g_new(GdkColor,1);
         
-      switch(tfc->index) {
+      switcht(ltt_tracefile_num(tfc->tf)) {
         case 0:
           prop_bg.color->red = 0x1515;
           prop_bg.color->green = 0x1515;
@@ -1375,25 +1345,23 @@ int before_schedchange_hook(void *hook_data, void *call_data)
  */
 int after_schedchange_hook(void *hook_data, void *call_data)
 {
-  EventsRequest *events_request = (EventsRequest*)hook_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 *)((LttvTracefileContext*)tfs)->t_context;
 
   LttEvent *e;
-  e = tfc->e;
+  e = ltt_tracefile_get_event(tfc->tf);
 
   LttTime evtime = ltt_event_time(e);
 
-  guint width = control_flow_data->drawing->width;
-
   /* Add process to process list (if not present) */
-  LttvProcessState *process_out, *process_in;
+  LttvProcessState *process_in;
   LttTime birth;
-  guint y_in = 0, y_out = 0, height = 0, pl_height = 0;
+  guint pl_height = 0;
   HashedProcessData *hashed_process_data_in = NULL;
 
   ProcessList *process_list = control_flow_data->process_list;
@@ -1401,13 +1369,8 @@ int after_schedchange_hook(void *hook_data, void *call_data)
   guint pid_in;
   {
     guint pid_out;
-    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);
+    pid_out = ltt_event_get_long_unsigned(e, thf->f1);
+    pid_in = ltt_event_get_long_unsigned(e, thf->f2);
   }
 
 
@@ -1415,8 +1378,9 @@ int after_schedchange_hook(void *hook_data, void *call_data)
   //process_in = lttv_state_find_process(tfs, pid_in);
   process_in = tfs->process;
   /* It should exist, because we are after the state update. */
+#ifdef EXTRA_CHECK
   g_assert(process_in != NULL);
-
+#endif //EXTRA_CHECK
   birth = process_in->creation_time;
 
   hashed_process_data_in = processlist_get_process_data(process_list,
@@ -1429,8 +1393,10 @@ int after_schedchange_hook(void *hook_data, void *call_data)
     g_assert(pid_in == 0 || pid_in != process_in->ppid);
     const gchar *name = g_quark_to_string(process_in->name);
     ProcessInfo *process_info;
+    Drawing_t *drawing = control_flow_data->drawing;
     /* Process not present */
     processlist_add(process_list,
+        drawing,
         pid_in,
         process_in->last_cpu_index,
         process_in->ppid,
@@ -1440,11 +1406,10 @@ int after_schedchange_hook(void *hook_data, void *call_data)
         &pl_height,
         &process_info,
         &hashed_process_data_in);
-    processlist_get_pixels_from_data(process_list,
-                hashed_process_data_in,
-                &y_in,
-                &height);
-    drawing_insert_square( control_flow_data->drawing, y_in, height);
+        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_in->last_cpu_index] =
@@ -1453,10 +1418,6 @@ int after_schedchange_hook(void *hook_data, void *call_data)
   if(ltt_time_compare(hashed_process_data_in->next_good_time,
                           evtime) <= 0)
   {
-    processlist_get_pixels_from_data(process_list,
-                hashed_process_data_in,
-                &y_in,
-                &height);
     TimeWindow time_window = 
     lttvwindow_get_time_window(control_flow_data->tab);
 
@@ -1465,7 +1426,8 @@ int after_schedchange_hook(void *hook_data, void *call_data)
         || 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(
@@ -1885,7 +1847,7 @@ int after_schedchange_hook(void *hook_data, void *call_data)
 
       prop_text_in.text = g_new(gchar, 260);
       strcpy(prop_text_in.text, "CPU ");
-      snprintf(tmp, 255, "%u", tfc->index);
+      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);
@@ -1937,7 +1899,7 @@ int after_schedchange_hook(void *hook_data, void *call_data)
 }
 
 #if 0
-static __inline__ PropertiesLine prepare_execmode_line(LttvProcessState *process)
+static inline PropertiesLine prepare_execmode_line(LttvProcessState *process)
 {
   PropertiesLine prop_line;
   prop_line.line_width = 1;
@@ -1990,20 +1952,18 @@ static __inline__ PropertiesLine prepare_execmode_line(LttvProcessState *process
 
 int before_execmode_hook(void *hook_data, void *call_data)
 {
-  EventsRequest *events_request = (EventsRequest*)hook_data;
+  LttvTraceHookByFacility *thf = (LttvTraceHookByFacility*)hook_data;
+  EventsRequest *events_request = (EventsRequest*)thf->hook_data;
   ControlFlowData *control_flow_data = events_request->viewer_data;
-  Drawing_t *drawing = control_flow_data->drawing;
 
   LttvTracefileContext *tfc = (LttvTracefileContext *)call_data;
 
   LttvTracefileState *tfs = (LttvTracefileState *)call_data;
-  LttvTraceState *ts =(LttvTraceState *)((LttvTracefileContext*)tfs)->t_context;
 
   LttEvent *e;
-  e = tfc->e;
+  e = ltt_tracefile_get_event(tfc->tf);
 
   LttTime evtime = ltt_event_time(e);
-  guint width = drawing->width;
 
   /* we are in a execmode, before the state update. We must draw the
    * items corresponding to the state before it changes : now is the right
@@ -2019,26 +1979,28 @@ int before_execmode_hook(void *hook_data, void *call_data)
    * or add it, and draw its items.
    */
    /* Add process to process list (if not present) */
-  guint y = 0, height = 0, pl_height = 0;
+  guint pl_height = 0;
   HashedProcessData *hashed_process_data = NULL;
   ProcessList *process_list = control_flow_data->process_list;
   LttTime birth = process->creation_time;
  
-  if(process_list->current_hash_data[tfc->index] != NULL) {
-    hashed_process_data = process_list->current_hash_data[tfc->index];
+  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(hashed_process_data == NULL)
+    if(unlikely(hashed_process_data == NULL))
     {
       g_assert(pid == 0 || pid != process->ppid);
       ProcessInfo *process_info;
       /* Process not present */
+      Drawing_t *drawing = control_flow_data->drawing;
       const gchar *name = g_quark_to_string(process->name);
       processlist_add(process_list,
+          drawing,
           pid,
           process->last_cpu_index,
           process->ppid,
@@ -2048,11 +2010,10 @@ int before_execmode_hook(void *hook_data, void *call_data)
           &pl_height,
           &process_info,
           &hashed_process_data);
-      processlist_get_pixels_from_data(process_list,
-                  hashed_process_data,
-                  &y,
-                  &height);
-      drawing_insert_square( drawing, y, height);
+        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] =
@@ -2062,22 +2023,11 @@ int before_execmode_hook(void *hook_data, void *call_data)
   /* Now, the process is in the state hash and our own process hash.
    * We definitely can draw the items related to the ending state.
    */
-  
-  /* Check if the x position is unset. In can have been left unset by
-   * a draw closure from a after chunk hook. This should never happen,
-   * because it must be set by before chunk hook to the damage_begin
-   * value.
-   */
-  g_assert(hashed_process_data->x.over != -1);
 
-  if(ltt_time_compare(hashed_process_data->next_good_time,
-                      evtime) > 0)
+  if(likely(ltt_time_compare(hashed_process_data->next_good_time,
+                      evtime) > 0))
   {
-    if(hashed_process_data->x.middle_marked == FALSE) {
-      processlist_get_pixels_from_data(process_list,
-                  hashed_process_data,
-                  &y,
-                  &height);
+    if(unlikely(hashed_process_data->x.middle_marked == FALSE)) {
       TimeWindow time_window = 
         lttvwindow_get_time_window(control_flow_data->tab);
 
@@ -2086,6 +2036,8 @@ int before_execmode_hook(void *hook_data, void *call_data)
             || 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,
@@ -2095,17 +2047,13 @@ int before_execmode_hook(void *hook_data, void *call_data)
 
       /* Draw collision indicator */
       gdk_gc_set_foreground(drawing->gc, &drawing_colors[COL_WHITE]);
-      gdk_draw_point(drawing->pixmap,
+      gdk_draw_point(hashed_process_data->pixmap,
                      drawing->gc,
                      x,
-                     y+(height/2)-3);
+                     (hashed_process_data->height/2)-3);
       hashed_process_data->x.middle_marked = TRUE;
     }
   } else {
-    processlist_get_pixels_from_data(process_list,
-                hashed_process_data,
-                &y,
-                &height);
     TimeWindow time_window = 
       lttvwindow_get_time_window(control_flow_data->tab);
 
@@ -2114,6 +2062,8 @@ int before_execmode_hook(void *hook_data, void *call_data)
           || 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(
@@ -2124,16 +2074,16 @@ int before_execmode_hook(void *hook_data, void *call_data)
 
 
     /* Jump over draw if we are at the same x position */
-    if(x == hashed_process_data->x.middle &&
-             hashed_process_data->x.middle_used)
+    if(unlikely(x == hashed_process_data->x.middle &&
+             hashed_process_data->x.middle_used))
     {
-      if(hashed_process_data->x.middle_marked == FALSE) {
+      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(drawing->pixmap,
+        gdk_draw_point(hashed_process_data->pixmap,
                        drawing->gc,
                        x,
-                       y+(height/2)-3);
+                       (hashed_process_data->height/2)-3);
         hashed_process_data->x.middle_marked = TRUE;
       }
       /* jump */
@@ -2142,15 +2092,15 @@ int before_execmode_hook(void *hook_data, void *call_data)
       DrawContext draw_context;
       /* Now create the drawing context that will be used to draw
        * items related to the last state. */
-      draw_context.drawable = drawing->pixmap;
+      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 = y+1;
-      draw_context.drawinfo.y.middle = y+(height/2);
-      draw_context.drawinfo.y.under = y+height;
+      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;
@@ -2196,25 +2146,23 @@ int after_execmode_hook(void *hook_data, void *call_data)
   return 0;
 
 
-
-  EventsRequest *events_request = (EventsRequest*)hook_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 *)((LttvTracefileContext*)tfs)->t_context;
 
   LttEvent *e;
-  e = tfc->e;
+  e = ltt_tracefile_get_event(tfc->tf);
 
   LttTime evtime = ltt_event_time(e);
-  guint width = control_flow_data->drawing->width;
 
   /* Add process to process list (if not present) */
   LttvProcessState *process;
   LttTime birth;
-  guint y = 0, height = 0, pl_height = 0;
+  guint pl_height = 0;
   HashedProcessData *hashed_process_data = NULL;
 
   ProcessList *process_list = control_flow_data->process_list;
@@ -2228,21 +2176,23 @@ int after_execmode_hook(void *hook_data, void *call_data)
 
   birth = process->creation_time;
 
-  if(process_list->current_hash_data[tfc->index] != NULL) {
-    hashed_process_data = process_list->current_hash_data[tfc->index];
+  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(hashed_process_data == NULL)
+    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,
@@ -2252,26 +2202,19 @@ int after_execmode_hook(void *hook_data, void *call_data)
           &pl_height,
           &process_info,
           &hashed_process_data);
-      processlist_get_pixels_from_data(process_list,
-                  hashed_process_data,
-                  &y,
-                  &height);
-      drawing_insert_square( control_flow_data->drawing, y, height);
+        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(ltt_time_compare(hashed_process_data->next_good_time,
-                          evtime) <= 0)
+  if(unlikely(ltt_time_compare(hashed_process_data->next_good_time,
+                          evtime) <= 0))
   {
-#if 0
-    processlist_get_pixels_from_data(process_list,
-                hashed_process_data,
-                &y,
-                &height);
-#endif //0
     TimeWindow time_window = 
       lttvwindow_get_time_window(control_flow_data->tab);
 
@@ -2280,8 +2223,8 @@ int after_execmode_hook(void *hook_data, void *call_data)
           || 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(
@@ -2301,7 +2244,8 @@ int after_execmode_hook(void *hook_data, void *call_data)
 
 
 
-/* before_process_hook
+
+/* before_process_exit_hook
  * 
  * Draw lines for process event.
  *
@@ -2311,172 +2255,542 @@ int after_execmode_hook(void *hook_data, void *call_data)
  * This function adds items to be drawn in a queue for each process.
  * 
  */
-int before_process_hook(void *hook_data, void *call_data)
+
+
+int before_process_exit_hook(void *hook_data, void *call_data)
 {
-  EventsRequest *events_request = (EventsRequest*)hook_data;
+  LttvTraceHookByFacility *thf = (LttvTraceHookByFacility*)hook_data;
+  EventsRequest *events_request = (EventsRequest*)thf->hook_data;
+
   ControlFlowData *control_flow_data = events_request->viewer_data;
-  Drawing_t *drawing = control_flow_data->drawing;
 
   LttvTracefileContext *tfc = (LttvTracefileContext *)call_data;
 
   LttvTracefileState *tfs = (LttvTracefileState *)call_data;
-  LttvTraceState *ts =(LttvTraceState *)((LttvTracefileContext*)tfs)->t_context;
 
   LttEvent *e;
-  e = tfc->e;
+  e = ltt_tracefile_get_event(tfc->tf);
 
   LttTime evtime = ltt_event_time(e);
-  guint width = control_flow_data->drawing->width;
-
-  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 y = 0, height = 0, pl_height = 0;
-    HashedProcessData *hashed_process_data = NULL;
+  /* 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);
+  ProcessList *process_list = control_flow_data->process_list;
+  
+  g_assert(process != NULL);
 
-    birth = process->creation_time;
+  birth = process->creation_time;
 
-    if(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(hashed_process_data == NULL)
-      {
-        g_assert(pid == 0 || pid != process->ppid);
-        /* Process not present */
-        const gchar *name = g_quark_to_string(process->name);
-        ProcessInfo *process_info;
-        processlist_add(process_list,
-            pid,
-            process->last_cpu_index,
-            process->ppid,
-            &birth,
-            tfc->t_context->index,
-            name,
-            &pl_height,
-            &process_info,
-            &hashed_process_data);
-        processlist_get_pixels_from_data(process_list,
-                  hashed_process_data,
-                  &y,
-                  &height);
-        drawing_insert_square( control_flow_data->drawing, y, height);
-      }
+  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);
     }
+  }
 
-    /* Now, the process is in the state hash and our own process hash.
-     * We definitely can draw the items related to the ending state.
-     */
-    
-    /* Check if the x position is unset. In can have been left unset by
-     * a draw closure from a after chunk hook. This should never happen,
-     * because it must be set by before chunk hook to the damage_begin
-     * value.
-     */
-    g_assert(hashed_process_data->x.over != -1);
+  /* 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);
 
-    if(ltt_time_compare(hashed_process_data->next_good_time,
-                        evtime) > 0)
-    {
-      if(hashed_process_data->x.middle_marked == FALSE) {
-        processlist_get_pixels_from_data(process_list,
-                  hashed_process_data,
-                  &y,
-                  &height);
-        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;
+    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;
 
-        guint x;
-        convert_time_to_pixels(
-                  time_window,
-                  evtime,
-                  width,
-                  &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(drawing->pixmap,
+        gdk_draw_point(hashed_process_data->pixmap,
                        drawing->gc,
                        x,
-                       y+(height/2)-3);
+                       (hashed_process_data->height/2)-3);
         hashed_process_data->x.middle_marked = TRUE;
       }
+      /* jump */
     } else {
-      processlist_get_pixels_from_data(process_list,
-                hashed_process_data,
-                &y,
-                &height);
-      TimeWindow time_window = 
-        lttvwindow_get_time_window(control_flow_data->tab);
+      DrawContext draw_context;
 
-#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
+      /* 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;
 
-      guint 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;
 
-      convert_time_to_pixels(
-          time_window,
-          evtime,
-          width,
-          &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 the line */
+        PropertiesLine prop_line = prepare_s_e_line(process);
+        draw_line((void*)&prop_line, (void*)&draw_context);
 
-      /* Jump over draw if we are at the same x position */
-      if(x == hashed_process_data->x.middle &&
-             hashed_process_data->x.middle_used)
-      { 
-        if(hashed_process_data->x.middle_marked == FALSE) {
-          /* Draw collision indicator */
-          gdk_gc_set_foreground(drawing->gc, &drawing_colors[COL_WHITE]);
-          gdk_draw_point(drawing->pixmap,
-                         drawing->gc,
-                         x,
-                         y+(height/2)-3);
-          hashed_process_data->x.middle_marked = TRUE;
-        }
-        /* jump */
-      } else {
-        DrawContext 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;
 
-        /* Now create the drawing context that will be used to draw
-         * items related to the last state. */
-        draw_context.drawable = drawing->pixmap;
+      /* Calculate the next good time */
+      convert_pixels_to_time(width, x+1, time_window,
+                             &hashed_process_data->next_good_time);
+    }
+  }
+  
+  return 0;
+
+}
+
+
+
+/* before_process_release_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_release_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 pid;
+  {
+    pid = ltt_event_get_long_unsigned(e, thf->f1);
+  }
+
+  /* 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;
+      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);
+      }
+    }
+  }
+
+  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 = y+1;
-        draw_context.drawinfo.y.middle = y+(height/2);
-        draw_context.drawinfo.y.under = y+height;
+        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;
@@ -2491,14 +2805,177 @@ int before_process_hook(void *hook_data, void *call_data)
           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);
+        /* 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;
+        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);
+        }
       }
     }
 
@@ -2507,10 +2984,237 @@ int before_process_hook(void *hook_data, void *call_data)
 
 }
 
+#endif //0
+
+
+
+/* after_process_fork_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_fork_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 child_pid;
+  {
+    child_pid = ltt_event_get_long_unsigned(e, thf->f2);
+  }
+
+  /* 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;
+    }
+  }
+  return 0;
+}
+
+
+
+/* after_process_exit_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_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;
+
+  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 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;
+}
 
 
+#if 0
 
 /* after_process_hook
  * 
@@ -2525,19 +3229,18 @@ int before_process_hook(void *hook_data, void *call_data)
  */
 int after_process_hook(void *hook_data, void *call_data)
 {
-  EventsRequest *events_request = (EventsRequest*)hook_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 *)((LttvTracefileContext*)tfs)->t_context;
 
   LttEvent *e;
-  e = tfc->e;
+  e = ltt_tracefile_get_event(tfc->tf);
 
   LttTime evtime = ltt_event_time(e);
-  guint width = control_flow_data->drawing->width;
 
   guint sub_id;
   guint param1;
@@ -2556,7 +3259,7 @@ int after_process_hook(void *hook_data, void *call_data)
     /* Add process to process list (if not present) */
     LttvProcessState *process_child;
     LttTime birth;
-    guint y_child = 0, height = 0, pl_height = 0;
+    guint pl_height = 0;
     HashedProcessData *hashed_process_data_child = NULL;
 
     ProcessList *process_list = control_flow_data->process_list;
@@ -2568,18 +3271,22 @@ int after_process_hook(void *hook_data, void *call_data)
 
     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(hashed_process_data_child == NULL)
+    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,
@@ -2589,23 +3296,16 @@ int after_process_hook(void *hook_data, void *call_data)
           &pl_height,
           &process_info,
           &hashed_process_data_child);
-      processlist_get_pixels_from_data(process_list,
-                hashed_process_data_child,
-                &y_child,
-                &height);
-      drawing_insert_square( control_flow_data->drawing, y_child, height);
+        gtk_widget_set_size_request(drawing->drawing_area,
+                                    -1,
+                                    pl_height);
+        gtk_widget_queue_draw(drawing->drawing_area);
     }
 
 
-    if(ltt_time_compare(hashed_process_data_child->next_good_time,
-                          evtime) <= 0)
+    if(likely(ltt_time_compare(hashed_process_data_child->next_good_time,
+                          evtime) <= 0))
     {
-#if 0
-      processlist_get_pixels_from_data(process_list,
-                hashed_process_data_child,
-                &y_child,
-                &height);
-#endif //0
       TimeWindow time_window = 
         lttvwindow_get_time_window(control_flow_data->tab);
 
@@ -2614,7 +3314,8 @@ int after_process_hook(void *hook_data, void *call_data)
             || 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,
@@ -2622,17 +3323,17 @@ int after_process_hook(void *hook_data, void *call_data)
           width,
           &new_x);
 
-      if(hashed_process_data_child->x.over != 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(hashed_process_data_child->x.middle != new_x) {
+      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(hashed_process_data_child->x.under != new_x) {
+      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;
@@ -2645,7 +3346,7 @@ int after_process_hook(void *hook_data, void *call_data)
     LttvProcessState *process = tfs->process;
     guint pid = process->pid;
     LttTime birth;
-    guint y = 0, height = 0, pl_height = 0;
+    guint pl_height = 0;
     HashedProcessData *hashed_process_data = NULL;
 
     ProcessList *process_list = control_flow_data->process_list;
@@ -2655,21 +3356,23 @@ int after_process_hook(void *hook_data, void *call_data)
 
     birth = process->creation_time;
 
-    if(process_list->current_hash_data[tfc->index] != NULL) {
-      hashed_process_data = process_list->current_hash_data[tfc->index];
+    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(hashed_process_data == NULL)
+      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,
@@ -2679,11 +3382,10 @@ int after_process_hook(void *hook_data, void *call_data)
             &pl_height,
             &process_info,
             &hashed_process_data);
-        processlist_get_pixels_from_data(process_list,
-                  hashed_process_data,
-                  &y,
-                  &height);
-        drawing_insert_square( control_flow_data->drawing, y, height);
+        gtk_widget_set_size_request(drawing->drawing_area,
+                                    -1,
+                                    pl_height);
+        gtk_widget_queue_draw(drawing->drawing_area);
       }
 
       /* Set the current process */
@@ -2691,15 +3393,9 @@ int after_process_hook(void *hook_data, void *call_data)
                                                hashed_process_data;
     }
 
-    if(ltt_time_compare(hashed_process_data->next_good_time,
-                          evtime) <= 0)
+    if(unlikely(ltt_time_compare(hashed_process_data->next_good_time,
+                          evtime) <= 0))
     {
-#if 0
-      processlist_get_pixels_from_data(process_list,
-                hashed_process_data,
-                &y,
-                &height);
-#endif //0
       TimeWindow time_window = 
         lttvwindow_get_time_window(control_flow_data->tab);
 
@@ -2708,14 +3404,15 @@ int after_process_hook(void *hook_data, void *call_data)
             || 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(hashed_process_data->x.middle != 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;
@@ -2726,12 +3423,13 @@ int after_process_hook(void *hook_data, void *call_data)
   return 0;
 
 }
-
+#endif //0
 
 gint update_time_window_hook(void *hook_data, void *call_data)
 {
   ControlFlowData *control_flow_data = (ControlFlowData*) hook_data;
   Drawing_t *drawing = control_flow_data->drawing;
+  ProcessList *process_list = control_flow_data->process_list;
 
   const TimeWindowNotifyData *time_window_nofify_data = 
                           ((const TimeWindowNotifyData *)call_data);
@@ -2753,13 +3451,13 @@ gint update_time_window_hook(void *hook_data, void *call_data)
    * currently shown time interval. (reuse is only for scrolling)
    */
 
-  g_info("Old time window HOOK : %u, %u to %u, %u",
+  g_info("Old time window HOOK : %lu, %lu to %lu, %lu",
       old_time_window->start_time.tv_sec,
       old_time_window->start_time.tv_nsec,
       old_time_window->time_width.tv_sec,
       old_time_window->time_width.tv_nsec);
 
-  g_info("New time window HOOK : %u, %u to %u, %u",
+  g_info("New time window HOOK : %lu, %lu to %lu, %lu",
       new_time_window->start_time.tv_sec,
       new_time_window->start_time.tv_nsec,
       new_time_window->time_width.tv_sec,
@@ -2793,13 +3491,14 @@ gint update_time_window_hook(void *hook_data, void *call_data)
           &x);
 
       /* Copy old data to new location */
-      gdk_draw_drawable (control_flow_data->drawing->pixmap,
-          control_flow_data->drawing->drawing_area->style->black_gc,
-          control_flow_data->drawing->pixmap,
-          x, 0,
-          0, 0,
-         control_flow_data->drawing->width-x+SAFETY, -1);
+      copy_pixmap_region(process_list,
+                  NULL,
+                  control_flow_data->drawing->drawing_area->style->black_gc,
+                  NULL,
+                  x, 0,
+                  0, 0,
+                  control_flow_data->drawing->width-x+SAFETY, -1);
+
       if(drawing->damage_begin == drawing->damage_end)
         drawing->damage_begin = control_flow_data->drawing->width-x;
       else
@@ -2808,22 +3507,20 @@ gint update_time_window_hook(void *hook_data, void *call_data)
       drawing->damage_end = control_flow_data->drawing->width;
 
       /* Clear the data request background, but not SAFETY */
-      gdk_draw_rectangle (control_flow_data->drawing->pixmap,
-          //control_flow_data->drawing->drawing_area->style->black_gc,
+      rectangle_pixmap(process_list,
           control_flow_data->drawing->drawing_area->style->black_gc,
           TRUE,
           drawing->damage_begin+SAFETY, 0,
           drawing->damage_end - drawing->damage_begin,  // do not overlap
-          control_flow_data->drawing->height);
-
-      gtk_widget_queue_draw_area (drawing->drawing_area,
-                                0,0,
-                                control_flow_data->drawing->width,
-                                control_flow_data->drawing->height);
+          -1);
+      gtk_widget_queue_draw(drawing->drawing_area);
+      //gtk_widget_queue_draw_area (drawing->drawing_area,
+      //                          0,0,
+      //                          control_flow_data->drawing->width,
+      //                          control_flow_data->drawing->height);
 
       /* Get new data for the rest. */
       drawing_data_request(control_flow_data->drawing,
-          &control_flow_data->drawing->pixmap,
           drawing->damage_begin, 0,
           drawing->damage_end - drawing->damage_begin,
           control_flow_data->drawing->height);
@@ -2844,11 +3541,11 @@ gint update_time_window_hook(void *hook_data, void *call_data)
             width,
             &x);
         
-
         /* Copy old data to new location */
-        gdk_draw_drawable (control_flow_data->drawing->pixmap,
+        copy_pixmap_region  (process_list,
+            NULL,
             control_flow_data->drawing->drawing_area->style->black_gc,
-            control_flow_data->drawing->pixmap,
+            NULL,
             0, 0,
             x, 0,
             -1, -1);
@@ -2861,22 +3558,22 @@ gint update_time_window_hook(void *hook_data, void *call_data)
 
         drawing->damage_begin = 0;
         
-        gdk_draw_rectangle (control_flow_data->drawing->pixmap,
+        rectangle_pixmap (process_list,
           control_flow_data->drawing->drawing_area->style->black_gc,
           TRUE,
           drawing->damage_begin, 0,
           drawing->damage_end - drawing->damage_begin,  // do not overlap
-          control_flow_data->drawing->height);
+          -1);
 
-        gtk_widget_queue_draw_area (drawing->drawing_area,
-                                0,0,
-                                control_flow_data->drawing->width,
-                                control_flow_data->drawing->height);
+        gtk_widget_queue_draw(drawing->drawing_area);
+        //gtk_widget_queue_draw_area (drawing->drawing_area,
+        //                        0,0,
+        //                        control_flow_data->drawing->width,
+        //                        control_flow_data->drawing->height);
 
 
         /* Get new data for the rest. */
         drawing_data_request(control_flow_data->drawing,
-            &control_flow_data->drawing->pixmap,
             drawing->damage_begin, 0,
             drawing->damage_end - drawing->damage_begin,
             control_flow_data->drawing->height);
@@ -2890,23 +3587,23 @@ gint update_time_window_hook(void *hook_data, void *call_data)
           /* Cannot reuse any part of the screen : far jump */
           
           
-          gdk_draw_rectangle (control_flow_data->drawing->pixmap,
+          rectangle_pixmap (process_list,
             control_flow_data->drawing->drawing_area->style->black_gc,
             TRUE,
             0, 0,
             control_flow_data->drawing->width+SAFETY, // do not overlap
-            control_flow_data->drawing->height);
+            -1);
 
-          gtk_widget_queue_draw_area (drawing->drawing_area,
-                                0,0,
-                                control_flow_data->drawing->width,
-                                control_flow_data->drawing->height);
+          //gtk_widget_queue_draw_area (drawing->drawing_area,
+          //                      0,0,
+          //                      control_flow_data->drawing->width,
+          //                      control_flow_data->drawing->height);
+          gtk_widget_queue_draw(drawing->drawing_area);
 
           drawing->damage_begin = 0;
           drawing->damage_end = control_flow_data->drawing->width;
 
           drawing_data_request(control_flow_data->drawing,
-              &control_flow_data->drawing->pixmap,
               0, 0,
               control_flow_data->drawing->width,
               control_flow_data->drawing->height);
@@ -2918,23 +3615,23 @@ gint update_time_window_hook(void *hook_data, void *call_data)
     /* Different scale (zoom) */
     g_info("zoom");
 
-    gdk_draw_rectangle (control_flow_data->drawing->pixmap,
+    rectangle_pixmap (process_list,
           control_flow_data->drawing->drawing_area->style->black_gc,
           TRUE,
           0, 0,
           control_flow_data->drawing->width+SAFETY, // do not overlap
-          control_flow_data->drawing->height);
+          -1);
 
-    gtk_widget_queue_draw_area (drawing->drawing_area,
-                                0,0,
-                                control_flow_data->drawing->width,
-                                control_flow_data->drawing->height);
+    //gtk_widget_queue_draw_area (drawing->drawing_area,
+    //                            0,0,
+    //                            control_flow_data->drawing->width,
+    //                            control_flow_data->drawing->height);
+    gtk_widget_queue_draw(drawing->drawing_area);
   
     drawing->damage_begin = 0;
     drawing->damage_end = control_flow_data->drawing->width;
 
     drawing_data_request(control_flow_data->drawing,
-        &control_flow_data->drawing->pixmap,
         0, 0,
         control_flow_data->drawing->width,
         control_flow_data->drawing->height);
@@ -2949,32 +3646,16 @@ gint traceset_notify(void *hook_data, void *call_data)
 {
   ControlFlowData *control_flow_data = (ControlFlowData*) hook_data;
   Drawing_t *drawing = control_flow_data->drawing;
-  GtkWidget *widget = drawing->drawing_area;
 
 
   drawing_clear(control_flow_data->drawing);
   processlist_clear(control_flow_data->process_list);
+  gtk_widget_set_size_request(
+      control_flow_data->drawing->drawing_area,
+                -1, processlist_get_height(control_flow_data->process_list));
   redraw_notify(control_flow_data, NULL);
 
   request_background_data(control_flow_data);
-#if 0
-  drawing->damage_begin = 0;
-  drawing->damage_end = drawing->width;
-  if(drawing->damage_begin < drawing->damage_end)
-  {
-    drawing_data_request(drawing,
-                         &drawing->pixmap,
-                         drawing->damage_begin,
-                         0,
-                         drawing->damage_end-drawing->damage_begin,
-                         drawing->height);
-  }
-
-  gtk_widget_queue_draw_area(drawing->drawing_area,
-                             0,0,
-                             drawing->width,
-                             drawing->height);
-#endif //0
  
   return FALSE;
 }
@@ -2991,30 +3672,32 @@ gint redraw_notify(void *hook_data, void *call_data)
   /* fun feature, to be separated someday... */
   drawing_clear(control_flow_data->drawing);
   processlist_clear(control_flow_data->process_list);
-
-  // Clear the image
-  gdk_draw_rectangle (drawing->pixmap,
+  gtk_widget_set_size_request(
+      control_flow_data->drawing->drawing_area,
+                -1, processlist_get_height(control_flow_data->process_list));
+  // Clear the images
+  rectangle_pixmap (control_flow_data->process_list,
         widget->style->black_gc,
         TRUE,
         0, 0,
-        drawing->width+SAFETY,
-        drawing->height);
+        drawing->alloc_width,
+        -1);
 
+  gtk_widget_queue_draw(drawing->drawing_area);
 
   if(drawing->damage_begin < drawing->damage_end)
   {
     drawing_data_request(drawing,
-                         &drawing->pixmap,
                          drawing->damage_begin,
                          0,
                          drawing->damage_end-drawing->damage_begin,
                          drawing->height);
   }
 
-  gtk_widget_queue_draw_area(drawing->drawing_area,
-                             0,0,
-                             drawing->width,
-                             drawing->height);
+  //gtk_widget_queue_draw_area(drawing->drawing_area,
+  //                           0,0,
+  //                           drawing->width,
+  //                           drawing->height);
   return FALSE;
 
 }
@@ -3024,14 +3707,12 @@ gint continue_notify(void *hook_data, void *call_data)
 {
   ControlFlowData *control_flow_data = (ControlFlowData*) hook_data;
   Drawing_t *drawing = control_flow_data->drawing;
-  GtkWidget *widget = drawing->drawing_area;
 
   //g_assert(widget->allocation.width == drawing->damage_end);
 
   if(drawing->damage_begin < drawing->damage_end)
   {
     drawing_data_request(drawing,
-                         &drawing->pixmap,
                          drawing->damage_begin,
                          0,
                          drawing->damage_end-drawing->damage_begin,
@@ -3068,7 +3749,7 @@ gint update_current_time_hook(void *hook_data, void *call_data)
   LttTime trace_start = tsc->time_span.start_time;
   LttTime trace_end = tsc->time_span.end_time;
   
-  g_info("New current time HOOK : %u, %u", current_time.tv_sec,
+  g_info("New current time HOOK : %lu, %lu", current_time.tv_sec,
               current_time.tv_nsec);
 
 
@@ -3083,12 +3764,12 @@ gint update_current_time_hook(void *hook_data, void *call_data)
    * at one end of the trace. */
   
   
-  if(ltt_time_compare(current_time, time_begin) == -1)
+  if(ltt_time_compare(current_time, time_begin) < 0)
   {
     TimeWindow new_time_window;
 
     if(ltt_time_compare(current_time,
-          ltt_time_add(trace_start,half_width)) == -1)
+          ltt_time_add(trace_start,half_width)) < 0)
       time_begin = trace_start;
     else
       time_begin = ltt_time_sub(current_time,half_width);
@@ -3100,11 +3781,11 @@ gint update_current_time_hook(void *hook_data, void *call_data)
 
     lttvwindow_report_time_window(control_flow_data->tab, new_time_window);
   }
-  else if(ltt_time_compare(current_time, time_end) == 1)
+  else if(ltt_time_compare(current_time, time_end) > 0)
   {
     TimeWindow new_time_window;
 
-    if(ltt_time_compare(current_time, ltt_time_sub(trace_end, half_width)) == 1)
+    if(ltt_time_compare(current_time, ltt_time_sub(trace_end, half_width)) > 0)
       time_begin = ltt_time_sub(trace_end,width);
     else
       time_begin = ltt_time_sub(current_time,half_width);
@@ -3117,11 +3798,8 @@ gint update_current_time_hook(void *hook_data, void *call_data)
     lttvwindow_report_time_window(control_flow_data->tab, new_time_window);
     
   }
-  //gtk_widget_queue_draw(control_flow_data->drawing->drawing_area);
-  gtk_widget_queue_draw_area(drawing->drawing_area,
-                             0,0,
-                             drawing->width,
-                             drawing->height);
+  gtk_widget_queue_draw(control_flow_data->drawing->drawing_area);
+                             
   
   return 0;
 }
@@ -3130,6 +3808,7 @@ typedef struct _ClosureData {
   EventsRequest *events_request;
   LttvTracesetState *tss;
   LttTime end_time;
+  guint x_end;
 } ClosureData;
   
 
@@ -3141,13 +3820,11 @@ void draw_closure(gpointer key, gpointer value, gpointer user_data)
     
   EventsRequest *events_request = closure_data->events_request;
   ControlFlowData *control_flow_data = events_request->viewer_data;
-  Drawing_t *drawing = control_flow_data->drawing;
 
   LttvTracesetState *tss = closure_data->tss;
-  LttvTracesetContext *tsc = (LttvTracesetContext*)closure_data->tss;
+  LttvTracesetContext *tsc = (LttvTracesetContext*)tss;
 
   LttTime evtime = closure_data->end_time;
-  guint width = drawing->width;
 
   { 
     /* For the process */
@@ -3159,46 +3836,48 @@ void draw_closure(gpointer key, gpointer value, gpointer user_data)
 #ifdef EXTRA_CHECK
     g_assert(lttv_traceset_number(tsc->ts) > 0);
 #endif //EXTRA_CHECK
-    /* tracefiles[0] is ok here, because we draw for every PID, and
-     * assume CPU 0 for PID 0 //FIXME */
-    LttvTracefileState *tfs =
-      (LttvTracefileState*)tsc->traces[process_info->trace_num]->tracefiles[0];
+    LttvTraceContext *tc = tsc->traces[process_info->trace_num];
+
+    //FIXME : optimize data structures.
+    LttvTracefileState *tfs;
+    LttvTracefileContext *tfc;
+    guint i;
+    for(i=0;i<tc->tracefiles->len;i++) {
+      tfc = g_array_index(tc->tracefiles, LttvTracefileContext*, i);
+      if(ltt_tracefile_name(tfc->tf) == LTT_NAME_CPU
+          && ltt_tracefile_num(tfc->tf) == process_info->cpu)
+        break;
 
+    }
+    g_assert(i<tc->tracefiles->len);
+    tfs = LTTV_TRACEFILE_STATE(tfc);
+
+ //   LttvTracefileState *tfs =
+ //    (LttvTracefileState*)tsc->traces[process_info->trace_num]->
+ //                        tracefiles[process_info->cpu];
     LttvProcessState *process;
     process = lttv_state_find_process(tfs,
                                       process_info->pid);
 
-    if(process != NULL) {
+    if(unlikely(process != NULL)) {
       
       /* Only draw for processes that are currently in the trace states */
 
-      guint y = 0, height = 0, pl_height = 0;
       ProcessList *process_list = control_flow_data->process_list;
-      LttTime birth = process_info->birth;
-      
+#ifdef EXTRA_CHECK
       /* Should be alike when background info is ready */
       if(control_flow_data->background_info_waiting==0)
         g_assert(ltt_time_compare(process->creation_time,
                                   process_info->birth) == 0);
-      /* process HAS to be present */
-      processlist_get_pixels_from_data(process_list,
-              hashed_process_data,
-              &y,
-              &height);
+#endif //EXTRA_CHECK
     
       /* Now, the process is in the state hash and our own process hash.
        * We definitely can draw the items related to the ending state.
        */
       
-      /* Check if the x position is unset. In can have been left unset by
-       * a draw closure from a after chunk hook. This should never happen,
-       * because it must be set by before chunk hook to the damage_begin
-       * value.
-       */
-      g_assert(hashed_process_data->x.over != -1);
-
-      if(ltt_time_compare(hashed_process_data->next_good_time,
-                            evtime) <= 0)
+      if(unlikely(ltt_time_compare(hashed_process_data->next_good_time,
+                            evtime) <= 0))
       {
         TimeWindow time_window = 
           lttvwindow_get_time_window(control_flow_data->tab);
@@ -3208,26 +3887,23 @@ void draw_closure(gpointer key, gpointer value, gpointer user_data)
               || ltt_time_compare(evtime, time_window.end_time) == 1)
                   return;
 #endif //EXTRA_CHECK
-        guint x;
+        Drawing_t *drawing = control_flow_data->drawing;
+        guint width = drawing->width;
 
-        convert_time_to_pixels(
-            time_window,
-            evtime,
-            width,
-            &x);
+        guint x = closure_data->x_end;
 
         DrawContext draw_context;
 
         /* Now create the drawing context that will be used to draw
          * items related to the last state. */
-        draw_context.drawable = drawing->pixmap;
+        draw_context.drawable = hashed_process_data->pixmap;
         draw_context.gc = drawing->gc;
         draw_context.pango_layout = drawing->pango_layout;
         draw_context.drawinfo.end.x = x;
 
-        draw_context.drawinfo.y.over = y+1;
-        draw_context.drawinfo.y.middle = y+(height/2);
-        draw_context.drawinfo.y.under = y+height;
+        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;
@@ -3250,8 +3926,8 @@ void draw_closure(gpointer key, gpointer value, gpointer user_data)
         }
 #endif //0
 
-        if(x == hashed_process_data->x.middle &&
-            hashed_process_data->x.middle_used) {
+        if(unlikely(x == hashed_process_data->x.middle &&
+            hashed_process_data->x.middle_used)) {
 #if 0 /* do not mark closure : not missing information */
           if(hashed_process_data->x.middle_marked == FALSE) {
             /* Draw collision indicator */
@@ -3271,7 +3947,7 @@ void draw_closure(gpointer key, gpointer value, gpointer user_data)
           draw_line((void*)&prop_line, (void*)&draw_context);
 
            /* become the last x position */
-          if(x != hashed_process_data->x.middle) {
+          if(likely(x != hashed_process_data->x.middle)) {
             hashed_process_data->x.middle = x;
             /* but don't use the pixel */
             hashed_process_data->x.middle_used = FALSE;
@@ -3291,7 +3967,14 @@ int before_chunk(void *hook_data, void *call_data)
 {
   EventsRequest *events_request = (EventsRequest*)hook_data;
   LttvTracesetState *tss = (LttvTracesetState*)call_data;
-
+  ControlFlowData *cfd = (ControlFlowData*)events_request->viewer_data;
+#if 0  
+  /* Desactivate sort */
+  gtk_tree_sortable_set_sort_column_id(
+      GTK_TREE_SORTABLE(cfd->process_list->list_store),
+      TRACE_COLUMN,
+      GTK_SORT_ASCENDING);
+#endif //0
   drawing_chunk_begin(events_request, tss);
 
   return 0;
@@ -3301,7 +3984,7 @@ int before_request(void *hook_data, void *call_data)
 {
   EventsRequest *events_request = (EventsRequest*)hook_data;
   LttvTracesetState *tss = (LttvTracesetState*)call_data;
-
   drawing_data_request_begin(events_request, tss);
 
   return 0;
@@ -3322,7 +4005,6 @@ int after_request(void *hook_data, void *call_data)
   EventsRequest *events_request = (EventsRequest*)hook_data;
   ControlFlowData *control_flow_data = events_request->viewer_data;
   LttvTracesetState *tss = (LttvTracesetState*)call_data;
-  LttvTracesetContext *tsc = (LttvTracesetContext*)call_data;
   
   ProcessList *process_list = control_flow_data->process_list;
   LttTime end_time = events_request->end_time;
@@ -3332,9 +4014,20 @@ int after_request(void *hook_data, void *call_data)
   closure_data.tss = tss;
   closure_data.end_time = end_time;
 
+  TimeWindow time_window = 
+          lttvwindow_get_time_window(control_flow_data->tab);
+  guint width = control_flow_data->drawing->width;
+  convert_time_to_pixels(
+            time_window,
+            end_time,
+            width,
+            &closure_data.x_end);
+
+
   /* Draw last items */
   g_hash_table_foreach(process_list->process_hash, draw_closure,
                         (void*)&closure_data);
+  
 
   /* Request expose */
   drawing_request_expose(events_request, tss, end_time);
@@ -3370,11 +4063,30 @@ int after_chunk(void *hook_data, void *call_data)
   closure_data.tss = tss;
   closure_data.end_time = end_time;
 
+  TimeWindow time_window = 
+          lttvwindow_get_time_window(control_flow_data->tab);
+  guint width = control_flow_data->drawing->width;
+  convert_time_to_pixels(
+            time_window,
+            end_time,
+            width,
+            &closure_data.x_end);
+
   /* Draw last items */
   g_hash_table_foreach(process_list->process_hash, draw_closure,
                         (void*)&closure_data);
-
-  /* Request expose */
+#if 0
+  /* Reactivate sort */
+  gtk_tree_sortable_set_sort_column_id(
+      GTK_TREE_SORTABLE(control_flow_data->process_list->list_store),
+      GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID,
+      GTK_SORT_ASCENDING);
+
+  update_index_to_pixmap(control_flow_data->process_list);
+  /* Request a full expose : drawing scrambled */
+  gtk_widget_queue_draw(control_flow_data->drawing->drawing_area);
+#endif //0
+  /* Request expose (updates damages zone also) */
   drawing_request_expose(events_request, tss, end_time);
 
   return 0;
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