accelerate double useage for time
[lttv.git] / ltt / branches / poly / lttv / modules / gui / controlflow / drawing.c
index 7113181986246208223716972d6a7ccea4b5be34..aaf8b03005d0b47d0ac6600a745db1ef50f717c9 100644 (file)
@@ -21,7 +21,7 @@
 
 #include <lttv/lttv.h>
 #include <lttv/tracecontext.h>
-#include <lttvwindow/viewer.h>
+#include <lttvwindow/lttvwindow.h>
 #include <lttv/state.h>
 #include <lttv/hook.h>
 
 #define g_info(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_INFO, format)
 #define g_debug(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, format)
 
+//FIXME
+#define TRACE_NUMBER 0
+
+#if 0 /* colors for two lines representation */
+GdkColor drawing_colors[NUM_COLORS] =
+{ /* Pixel, R, G, B */
+  { 0, 0, 0, 0 }, /* COL_BLACK */
+  { 0, 0xFFFF, 0xFFFF, 0xFFFF }, /* COL_WHITE */
+  { 0, 0x0FFF, 0xFFFF, 0xFFFF }, /* COL_WAIT_FORK : pale blue */
+  { 0, 0xFFFF, 0xFFFF, 0x0000 }, /* COL_WAIT_CPU : yellow */
+  { 0, 0xFFFF, 0xA000, 0xFCFF }, /* COL_EXIT : pale magenta */
+  { 0, 0xFFFF, 0x0000, 0xFFFF }, /* COL_ZOMBIE : purple */
+  { 0, 0xFFFF, 0x0000, 0x0000 }, /* COL_WAIT : red */
+  { 0, 0x0000, 0xFFFF, 0x0000 }, /* COL_RUN : green */
+  { 0, 0x8800, 0xFFFF, 0x8A00 }, /* COL_USER_MODE : pale green */
+  { 0, 0x09FF, 0x01FF, 0xFFFF }, /* COL_SYSCALL : blue */
+  { 0, 0xF900, 0x4200, 0xFF00 }, /* COL_TRAP : pale purple */
+  { 0, 0xFFFF, 0x5AFF, 0x01FF }, /* COL_IRQ : orange */
+  { 0, 0xFFFF, 0xFFFF, 0xFFFF }  /* COL_MODE_UNKNOWN : white */
+
+};
+#endif //0
+
+
+GdkColor drawing_colors[NUM_COLORS] =
+{ /* Pixel, R, G, B */
+  { 0, 0, 0, 0 }, /* COL_BLACK */
+  { 0, 0xFFFF, 0xFFFF, 0xFFFF }, /* COL_WHITE */
+  { 0, 0x0000, 0xFF00, 0x0000 }, /* COL_RUN_USER_MODE : green */
+  { 0, 0x0100, 0x9E00, 0xFFFF }, /* COL_RUN_SYSCALL : pale blue */
+  { 0, 0xFF00, 0xFF00, 0x0100 }, /* COL_RUN_TRAP : yellow */
+  { 0, 0xFFFF, 0x0000, 0x0000 }, /* COL_RUN_IRQ : red */
+  { 0, 0xA3FF, 0x0000, 0x0000 }, /* COL_WAIT : dark red */
+  { 0, 0x7700, 0x7700, 0x0000 }, /* COL_WAIT_CPU : dark yellow */
+  { 0, 0x6400, 0x0000, 0x5D00 }, /* COL_ZOMBIE : dark purple */
+  { 0, 0x0700, 0x6400, 0x0000 }, /* COL_WAIT_FORK : dark green */
+  { 0, 0x8900, 0x0000, 0x8400 }, /* COL_EXIT : "less dark" magenta */
+  { 0, 0xFFFF, 0xFFFF, 0xFFFF }, /* COL_MODE_UNKNOWN : white */
+  { 0, 0xFFFF, 0xFFFF, 0xFFFF }  /* COL_UNNAMED : white */
+
+};
+
+/*
+RUN+USER MODE green
+RUN+SYSCALL
+RUN+TRAP
+RUN+IRQ
+WAIT+foncé
+WAIT CPU + WAIT FORK vert foncé ou jaune
+IRQ rouge
+TRAP: orange
+SYSCALL: bleu pâle
+
+ZOMBIE + WAIT EXIT
+*/
+
+
 /*****************************************************************************
  *                              drawing functions                            *
  *****************************************************************************/
@@ -44,30 +101,8 @@ static gboolean
 motion_notify_ruler(GtkWidget *widget, GdkEventMotion *event, gpointer user_data);
 
 
-//FIXME Colors will need to be dynamic. Graphic context part not done so far.
-typedef enum 
-{
-  RED,
-  GREEN,
-  BLUE,
-  WHITE,
-  BLACK
-
-} ControlFlowColors;
-
-/* Vector of unallocated colors */
-static GdkColor CF_Colors [] = 
-{
-  { 0, 0xffff, 0x0000, 0x0000 },  // RED
-  { 0, 0x0000, 0xffff, 0x0000 },  // GREEN
-  { 0, 0x0000, 0x0000, 0xffff },  // BLUE
-  { 0, 0xffff, 0xffff, 0xffff },  // WHITE
-  { 0, 0x0000, 0x0000, 0x0000 } // BLACK
-};
-
-
 /* Function responsible for updating the exposed area.
- * It must call processTrace() to ask for this update.
+ * It must do an events request to the lttvwindow API to ask for this update.
  * Note : this function cannot clear the background, because it may
  * erase drawing already present (SAFETY).
  */
@@ -80,131 +115,370 @@ void drawing_data_request(Drawing_t *drawing,
   if(width < 0) return ;
   if(height < 0) return ;
 
-  const TimeWindow *time_window = lttvwindow_get_time_window(drawing->control_flow_data->mw);
+  Tab *tab = drawing->control_flow_data->tab;
+  TimeWindow time_window =
+              lttvwindow_get_time_window(tab);
 
   ControlFlowData *control_flow_data = drawing->control_flow_data;
   //    (ControlFlowData*)g_object_get_data(
   //               G_OBJECT(drawing->drawing_area), "control_flow_data");
 
   LttTime start, time_end;
-  LttTime window_end = ltt_time_add(time_window->time_width,
-                                    time_window->start_time);
+  LttTime window_end = ltt_time_add(time_window.time_width,
+                                    time_window.start_time);
 
-  g_debug("req : window start_time : %u, %u", time_window->start_time.tv_sec, 
-                                       time_window->start_time.tv_nsec);
+  g_debug("req : window start_time : %u, %u", time_window.start_time.tv_sec, 
+                                       time_window.start_time.tv_nsec);
 
-  g_debug("req : window time width : %u, %u", time_window->time_width.tv_sec, 
-                                       time_window->time_width.tv_nsec);
+  g_debug("req : window time width : %u, %u", time_window.time_width.tv_sec, 
+                                       time_window.time_width.tv_nsec);
   
   g_debug("req : window_end : %u, %u", window_end.tv_sec, 
                                        window_end.tv_nsec);
 
   g_debug("x is : %i, x+width is : %i", x, x+width);
 
-  convert_pixels_to_time(drawing->drawing_area->allocation.width, x,
-        time_window->start_time,
+  convert_pixels_to_time(drawing->width, x,
+        time_window.start_time,
         window_end,
         &start);
 
-  convert_pixels_to_time(drawing->drawing_area->allocation.width, x+width,
-        time_window->start_time,
+  convert_pixels_to_time(drawing->width, x+width,
+        time_window.start_time,
         window_end,
         &time_end);
-  
-  LttvTracesetContext * tsc =
-        lttvwindow_get_traceset_context(control_flow_data->mw);
-  LttvTracesetState * tss =
-        (LttvTracesetState*)tsc;
-  
-  // Let's call processTrace() !!
-  
-  EventRequest *event_request = control_flow_data->event_request;
-  event_request->control_flow_data = control_flow_data;
-  event_request->time_begin = start;
-  event_request->time_end = time_end;
-
-  event_request->x_begin = x;
-  event_request->x_end = x+width;
-
-  g_debug("req : start : %u, %u", event_request->time_begin.tv_sec, 
-                                      event_request->time_begin.tv_nsec);
-
-  g_debug("req : end : %u, %u", event_request->time_end.tv_sec, 
-                                      event_request->time_end.tv_nsec);
-  
-  lttv_hooks_add(control_flow_data->after_traceset, after_data_request, event_request);
-  lttv_hooks_add(control_flow_data->event, draw_event_hook, event_request);
-  lttv_hooks_add(control_flow_data->after_event, draw_after_hook, event_request);
-
-  //lttv_process_traceset_seek_time(tsc, start);
-  //lttv_state_traceset_seek_time_closest(tss, start);
-  // FIXME : would like to place the after_traceset hook after the traceset,
-  // but the traceset context state is not valid anymore.
-  lttv_traceset_context_add_hooks(tsc,
-      NULL, control_flow_data->after_traceset, NULL, NULL, NULL, NULL,
-      //NULL, NULL, NULL, NULL, NULL, NULL,
-      NULL, NULL, NULL, control_flow_data->event, control_flow_data->after_event);
-  TimeWindow time_request;
-  time_request.start_time = start;
-  time_request.time_width = ltt_time_sub(time_end, start);
-  
-  lttvwindow_time_interval_request(drawing->control_flow_data->mw, 
-                                   time_request, G_MAXUINT,
-                                   after_process_traceset_hook,
-                                   control_flow_data);
+
+  lttvwindow_events_request_remove_all(tab,
+                                       control_flow_data);
+
+  {
+    /* find the tracehooks */
+    LttvTracesetContext *tsc = lttvwindow_get_traceset_context(tab);
+
+    LttvTraceset *traceset = tsc->ts;
+
+    guint i, k, nb_trace;
+
+    LttvTraceState *ts;
+
+    LttvTracefileState *tfs;
+
+    GArray *hooks;
+
+    LttvTraceHook hook;
+
+    LttvAttributeValue val;
+
+    nb_trace = lttv_traceset_number(traceset);
+    // FIXME : eventually request for more traces
+    // for(i = 0 ; i < nb_trace ; i++) {
+    for(i = 0; i<MIN(TRACE_NUMBER+1, nb_trace);i++)
+    {
+      EventsRequest *events_request = g_new(EventsRequest, 1);
+      // Create the hooks
+      //LttvHooks *event = lttv_hooks_new();
+      LttvHooksById *event_by_id = lttv_hooks_by_id_new();
+      LttvHooks *before_chunk_traceset = lttv_hooks_new();
+      LttvHooks *after_chunk_traceset = lttv_hooks_new();
+      LttvHooks *before_request_hook = lttv_hooks_new();
+      LttvHooks *after_request_hook = lttv_hooks_new();
+
+      lttv_hooks_add(before_chunk_traceset,
+                     before_chunk,
+                     events_request,
+                     LTTV_PRIO_DEFAULT);
+
+      lttv_hooks_add(after_chunk_traceset,
+                     after_chunk,
+                     events_request,
+                     LTTV_PRIO_DEFAULT);
+
+      lttv_hooks_add(before_request_hook,
+                     before_request,
+                     events_request,
+                     LTTV_PRIO_DEFAULT);
+
+      lttv_hooks_add(after_request_hook,
+                     after_request,
+                     events_request,
+                     LTTV_PRIO_DEFAULT);
+
+
+      ts = (LttvTraceState *)tsc->traces[i];
+
+      /* Find the eventtype id for the following events and register the
+         associated by id hooks. */
+
+      hooks = g_array_new(FALSE, FALSE, sizeof(LttvTraceHook));
+      g_array_set_size(hooks, 16);
+
+      /* before hooks */
+      
+      lttv_trace_find_hook(ts->parent.t, "core","syscall_entry","syscall_id", 
+    NULL, NULL, before_execmode_hook, &g_array_index(hooks, LttvTraceHook, 0));
+
+      lttv_trace_find_hook(ts->parent.t, "core", "syscall_exit", NULL, NULL, 
+          NULL, before_execmode_hook, &g_array_index(hooks, LttvTraceHook, 1));
+
+      lttv_trace_find_hook(ts->parent.t, "core", "trap_entry", "trap_id",
+    NULL, NULL, before_execmode_hook, &g_array_index(hooks, LttvTraceHook, 2));
+
+      lttv_trace_find_hook(ts->parent.t, "core", "trap_exit", NULL, NULL, NULL, 
+          before_execmode_hook, &g_array_index(hooks, LttvTraceHook, 3));
+
+      lttv_trace_find_hook(ts->parent.t, "core", "irq_entry", "irq_id", NULL, 
+          NULL, before_execmode_hook, &g_array_index(hooks, LttvTraceHook, 4));
+
+      lttv_trace_find_hook(ts->parent.t, "core", "irq_exit", NULL, NULL, NULL, 
+          before_execmode_hook, &g_array_index(hooks, LttvTraceHook, 5));
+
+      lttv_trace_find_hook(ts->parent.t, "core", "schedchange", "in", "out", 
+        "out_state", before_schedchange_hook, 
+        &g_array_index(hooks, LttvTraceHook, 6));
+
+      lttv_trace_find_hook(ts->parent.t, "core", "process", "event_sub_id", 
+          "event_data1", "event_data2", before_process_hook,
+          &g_array_index(hooks, LttvTraceHook, 7));
+
+#if 0
+      lttv_trace_find_hook(ts->parent.t, "core", "process_fork", "child_pid", 
+          NULL, NULL, process_fork, &g_array_index(hooks, LttvTraceHook, 7));
+
+      lttv_trace_find_hook(ts->parent.t, "core", "process_exit", NULL, NULL, 
+          NULL, process_exit, &g_array_index(hooks, LttvTraceHook, 8));
+#endif //0
+
+      /* after hooks */
       
-  //lttv_process_traceset(tsc, end, G_MAXULONG);
+      lttv_trace_find_hook(ts->parent.t, "core","syscall_entry","syscall_id", 
+    NULL, NULL, after_execmode_hook, &g_array_index(hooks, LttvTraceHook, 8));
+
+      lttv_trace_find_hook(ts->parent.t, "core", "syscall_exit", NULL, NULL, 
+          NULL, after_execmode_hook, &g_array_index(hooks, LttvTraceHook, 9));
+
+      lttv_trace_find_hook(ts->parent.t, "core", "trap_entry", "trap_id",
+    NULL, NULL, after_execmode_hook, &g_array_index(hooks, LttvTraceHook, 10));
+
+      lttv_trace_find_hook(ts->parent.t, "core", "trap_exit", NULL, NULL, NULL, 
+          after_execmode_hook, &g_array_index(hooks, LttvTraceHook, 11));
+
+      lttv_trace_find_hook(ts->parent.t, "core", "irq_entry", "irq_id", NULL, 
+          NULL, after_execmode_hook, &g_array_index(hooks, LttvTraceHook, 12));
+
+      lttv_trace_find_hook(ts->parent.t, "core", "irq_exit", NULL, NULL, NULL, 
+          after_execmode_hook, &g_array_index(hooks, LttvTraceHook, 13));
+
+      lttv_trace_find_hook(ts->parent.t, "core", "schedchange", "in", "out", 
+        "out_state", after_schedchange_hook, 
+        &g_array_index(hooks, LttvTraceHook, 14));
+
+      lttv_trace_find_hook(ts->parent.t, "core", "process", "event_sub_id", 
+          "event_data1", "event_data2", after_process_hook,
+          &g_array_index(hooks, LttvTraceHook, 15));
+
+#if 0
+      lttv_trace_find_hook(ts->parent.t, "core", "process_fork", "child_pid", 
+          NULL, NULL, process_fork, &g_array_index(hooks, LttvTraceHook, 7));
+
+      lttv_trace_find_hook(ts->parent.t, "core", "process_exit", NULL, NULL, 
+          NULL, process_exit, &g_array_index(hooks, LttvTraceHook, 8));
+#endif //0
+
+
+      
+      /* Add these hooks to each event_by_id hooks list */
+      /* add before */
+      for(k = 0 ; k < hooks->len/2 ; k++) {
+        hook = g_array_index(hooks, LttvTraceHook, k);
+        lttv_hooks_add(lttv_hooks_by_id_find(event_by_id, 
+                        hook.id), hook.h,
+                        events_request,
+                        LTTV_PRIO_STATE-5);
+      }
+
+      /* add after */
+      for(k = hooks->len/2 ; k < hooks->len ; k++) {
+        hook = g_array_index(hooks, LttvTraceHook, k);
+        lttv_hooks_add(lttv_hooks_by_id_find(event_by_id, 
+                       hook.id), hook.h,
+                       events_request,
+                       LTTV_PRIO_STATE+5);
+      }
+
+      events_request->hooks = hooks;
+
+      // Fill the events request
+      events_request->owner = control_flow_data;
+      events_request->viewer_data = control_flow_data;
+      events_request->servicing = FALSE;
+      events_request->start_time = start;
+      events_request->start_position = NULL;
+      events_request->stop_flag = FALSE;
+      events_request->end_time = time_end;
+      events_request->num_events = G_MAXUINT;
+      events_request->end_position = NULL;
+      events_request->trace = i;    /* FIXME */
+      events_request->before_chunk_traceset = before_chunk_traceset;
+      events_request->before_chunk_trace = NULL;
+      events_request->before_chunk_tracefile = NULL;
+      events_request->event = NULL;
+      events_request->event_by_id = event_by_id;
+      events_request->after_chunk_tracefile = NULL;
+      events_request->after_chunk_trace = NULL;
+      events_request->after_chunk_traceset = after_chunk_traceset;
+      events_request->before_request = before_request_hook;
+      events_request->after_request = after_request_hook;
+
+      g_debug("req : start : %u, %u", start.tv_sec, 
+                                          start.tv_nsec);
+
+      g_debug("req : end : %u, %u", time_end.tv_sec, 
+                                         time_end.tv_nsec);
+
+      lttvwindow_events_request(tab, events_request);
+
+    }
+
+  }
+
+#if 0
+  lttv_hooks_add(event,
+                 before_schedchange_hook,
+                 events_request,
+                 LTTV_PRIO_STATE-5);
+  lttv_hooks_add(event,
+                 after_schedchange_hook,
+                 events_request,
+                 LTTV_PRIO_STATE+5);
+  lttv_hooks_add(event,
+                 before_execmode_hook,
+                 events_request,
+                 LTTV_PRIO_STATE-5);
+  lttv_hooks_add(event,
+                 after_execmode_hook,
+                 events_request,
+                 LTTV_PRIO_STATE+5);
+  lttv_hooks_add(event,
+                 before_process_hook,
+                 events_request,
+                 LTTV_PRIO_STATE-5);
+  lttv_hooks_add(event,
+                 after_process_hook,
+                 events_request,
+                 LTTV_PRIO_STATE+5);
+#endif //0
+
+}
+
+static void set_last_start(gpointer key, gpointer value, gpointer user_data)
+{
+  ProcessInfo *process_info = (ProcessInfo*)key;
+  HashedProcessData *hashed_process_data = (HashedProcessData*)value;
+  guint x = (guint)user_data;
+
+  hashed_process_data->x.over = x;
+  hashed_process_data->x.over_used = FALSE;
+  hashed_process_data->x.over_marked = FALSE;
+  hashed_process_data->x.middle = x;
+  hashed_process_data->x.middle_used = FALSE;
+  hashed_process_data->x.middle_marked = FALSE;
+  hashed_process_data->x.under = x;
+  hashed_process_data->x.under_used = FALSE;
+  hashed_process_data->x.under_marked = FALSE;
+
+  return;
 }
-   
 
+void drawing_data_request_begin(EventsRequest *events_request, LttvTracesetState *tss)
+{
+  g_debug("Begin of data request");
+  ControlFlowData *cfd = events_request->viewer_data;
+  LttvTracesetContext *tsc = LTTV_TRACESET_CONTEXT(tss);
+  TimeWindow time_window = 
+    lttvwindow_get_time_window(cfd->tab);
+  LttTime end_time = ltt_time_add(time_window.start_time,
+                                    time_window.time_width);
+  guint width = cfd->drawing->width;
+  guint x=0;
+
+  cfd->drawing->last_start = events_request->start_time;
 
+  convert_time_to_pixels(
+          time_window.start_time,
+          end_time,
+          events_request->start_time,
+          width,
+          &x);
+
+  g_hash_table_foreach(cfd->process_list->process_hash, set_last_start,
+                            (gpointer)x);
+}
 
-void drawing_data_request_end(Drawing_t *drawing,
-                              TimeWindow req_time_window)
+void drawing_chunk_begin(EventsRequest *events_request, LttvTracesetState *tss)
 {
-  gint x, x_end, width;
-  
-  LttvTracesetContext * tsc =
-        lttvwindow_get_traceset_context(drawing->control_flow_data->mw);
+  g_debug("Begin of chunk");
+  ControlFlowData *cfd = events_request->viewer_data;
+  LttvTracesetContext *tsc = LTTV_TRACESET_CONTEXT(tss);
+  LttTime current_time = lttv_traceset_context_get_current_tfc(tsc)->timestamp;
 
-  const TimeWindow *time_window = lttvwindow_get_time_window(drawing->control_flow_data->mw);
+  //cfd->drawing->last_start = LTT_TIME_MIN(current_time,
+  //                                        events_request->end_time);
+}
 
-  //FIXME ? removing hooks during processtrace can BREAK things!
-  lttv_traceset_context_remove_hooks(tsc,
-      NULL, drawing->control_flow_data->after_traceset, NULL, NULL, NULL, NULL,
-      NULL, NULL, NULL,
-      drawing->control_flow_data->event,
-      drawing->control_flow_data->after_event);
 
-  g_debug("End of data request");
-  
-  LttTime window_end = ltt_time_add(time_window->time_width,
-                                    time_window->start_time);
+void drawing_request_expose(EventsRequest *events_request,
+                            LttvTracesetState *tss,
+                            LttTime end_time)
+{
+  gint x, x_end, width;
 
-  LttTime req_window_end = ltt_time_add(req_time_window.time_width,
-                                        req_time_window.start_time);
+  ControlFlowData *cfd = events_request->viewer_data;
+  LttvTracesetContext *tsc = LTTV_TRACESET_CONTEXT(tss);
+  Drawing_t *drawing = cfd->drawing;
+  
+  TimeWindow time_window = 
+        lttvwindow_get_time_window(cfd->tab);
 
+  g_debug("request expose");
+  
+  LttTime window_end = ltt_time_add(time_window.time_width,
+                                    time_window.start_time);
+#if 0
   convert_time_to_pixels(
-        time_window->start_time,
+        time_window.start_time,
         window_end,
-        req_time_window.start_time,
+        cfd->drawing->last_start,
         drawing->width,
         &x);
 
+#endif //0
   convert_time_to_pixels(
-        time_window->start_time,
+        time_window.start_time,
         window_end,
-        req_window_end,
+        end_time,
         drawing->width,
         &x_end);
-
+  x = drawing->damage_begin;
+ // x_end = drawing->damage_end;
   width = x_end - x;
 
+  drawing->damage_begin = x+width;
+  //drawing->damage_end = drawing->width;
+
   /* ask for the buffer to be redrawn */
+
+  //gtk_widget_queue_draw_area ( drawing->drawing_area,
+  //                             0, 0,
+  //                             drawing->width, drawing->height);
+
+  /* FIXME
+   * will need more precise pixel_to_time and time_to_pixel conversion
+   * functions to redraw only the needed area. */
   gtk_widget_queue_draw_area ( drawing->drawing_area,
                                x, 0,
                                width, drawing->height);
-
 }
 
 
@@ -214,6 +488,9 @@ void drawing_data_request_end(Drawing_t *drawing,
 /* Create a new backing pixmap of the appropriate size */
 /* As the scaling will always change, it's of no use to copy old
  * pixmap.
+ *
+ * Only change the size if width changes. The height is specified and changed
+ * when process ID are added or removed from the process list.
  */
 static gboolean
 configure_event( GtkWidget *widget, GdkEventConfigure *event, 
@@ -236,25 +513,24 @@ configure_event( GtkWidget *widget, GdkEventConfigure *event,
   //      widget->allocation.height + SAFETY,
   //      -1);
   
-  g_debug("drawing configure event");
-  g_debug("New draw size : %i by %i",widget->allocation.width, widget->allocation.height);
+  if(widget->allocation.width != drawing->width) {
+    g_debug("drawing configure event");
+    g_debug("New alloc draw size : %i by %i",widget->allocation.width,
+                                    widget->allocation.height);
   
     
-  if (drawing->pixmap)
-    gdk_pixmap_unref(drawing->pixmap);
+    if (drawing->pixmap)
+      gdk_pixmap_unref(drawing->pixmap);
   
-  /* If no old pixmap present */
-  //if(drawing->pixmap == NULL)
-  {
-    drawing->pixmap = gdk_pixmap_new(
-    widget->window,
-    widget->allocation.width + SAFETY,
-    widget->allocation.height + SAFETY,
+    drawing->width = widget->allocation.width;
+    //drawing->height = widget->allocation.height;
+
+    drawing->pixmap = gdk_pixmap_new(widget->window,
+                                     drawing->width + SAFETY,
+                                     drawing->height,
+                                     -1);
     //ProcessList_get_height
     // (GuiControlFlow_get_process_list(drawing->control_flow_data)),
-    -1);
-    drawing->width = widget->allocation.width;
-    drawing->height = widget->allocation.height;
     
 
     // Clear the image
@@ -262,8 +538,8 @@ configure_event( GtkWidget *widget, GdkEventConfigure *event,
           widget->style->black_gc,
           TRUE,
           0, 0,
-          widget->allocation.width+SAFETY,
-          widget->allocation.height+SAFETY);
+          drawing->width+SAFETY,
+          drawing->height);
 
     //g_info("init data request");
 
@@ -276,16 +552,23 @@ configure_event( GtkWidget *widget, GdkEventConfigure *event,
     //    widget->allocation.width,
     //    widget->allocation.height);
                           
-    drawing->width = widget->allocation.width;
-    drawing->height = widget->allocation.height;
+    //drawing->width = widget->allocation.width;
+    //drawing->height = widget->allocation.height;
   
-    drawing->data_injected = FALSE;
-
-    return TRUE;
-
-
-
+    drawing->damage_begin = 0;
+    drawing->damage_end = widget->allocation.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);
+    }
   }
+  return TRUE;
 }
 
 
@@ -295,38 +578,26 @@ expose_event( GtkWidget *widget, GdkEventExpose *event, gpointer user_data )
 {
   Drawing_t *drawing = (Drawing_t*)user_data;
 
-  const TimeWindow *time_window = lttvwindow_get_time_window(drawing->control_flow_data->mw);
-  const LttTime* current_time = 
-      lttvwindow_get_current_time(drawing->control_flow_data->mw);
-
   ControlFlowData *control_flow_data =
       (ControlFlowData*)g_object_get_data(
                 G_OBJECT(widget),
                 "control_flow_data");
+  if(drawing->gc == NULL) {
+    drawing->gc = gdk_gc_new(drawing->drawing_area->window);
+    gdk_gc_copy(drawing->gc, drawing->drawing_area->style->black_gc);
+  }
 
-  guint cursor_x=0;
-
-  LttTime window_end = ltt_time_add(time_window->time_width,
-                                    time_window->start_time);
-
-  convert_time_to_pixels(
-        time_window->start_time,
-        window_end,
-        *current_time,
-        widget->allocation.width,
-        &cursor_x);
+  TimeWindow time_window = 
+      lttvwindow_get_time_window(control_flow_data->tab);
+  LttTime current_time = 
+      lttvwindow_get_current_time(control_flow_data->tab);
 
+  guint cursor_x=0;
 
+  LttTime window_end = ltt_time_add(time_window.time_width,
+                                    time_window.start_time);
 
 
-  if(!drawing->data_injected)
-  {
-    drawing_data_request(drawing, &drawing->pixmap, 0, 0,
-        widget->allocation.width,
-        widget->allocation.height);
-    drawing->data_injected = TRUE;
-  }
-  
   /* update the screen from the pixmap buffer */
   gdk_draw_pixmap(widget->window,
       widget->style->fg_gc[GTK_WIDGET_STATE (widget)],
@@ -335,30 +606,41 @@ expose_event( GtkWidget *widget, GdkEventExpose *event, gpointer user_data )
       event->area.x, event->area.y,
       event->area.width, event->area.height);
 
-
-  /* Draw the dotted lines */
-
-  gint8 dash_list[] = { 1, 2 };
-  GdkGC *gc = gdk_gc_new(control_flow_data->drawing->pixmap);
-  gdk_gc_copy(gc, widget->style->white_gc);
-  gdk_gc_set_line_attributes(gc,
-                             1,
-                             GDK_LINE_ON_OFF_DASH,
-                             GDK_CAP_BUTT,
-                             GDK_JOIN_MITER);
-  gdk_gc_set_dashes(gc,
-                    0,
-                    dash_list,
-                    2);
-  drawing_draw_line(NULL, widget->window,
-                cursor_x, 0,
-                cursor_x, drawing->height,
-                gc);
-  gdk_gc_unref(gc);
-
   
+  if(ltt_time_compare(time_window.start_time, current_time) <= 0 &&
+           ltt_time_compare(window_end, current_time) >= 0)
+  {
+    /* Draw the dotted lines */
+    convert_time_to_pixels(
+          time_window.start_time,
+          window_end,
+          current_time,
+          drawing->width,
+          &cursor_x);
+
 
+    if(drawing->dotted_gc == NULL) {
 
+      drawing->dotted_gc = gdk_gc_new(drawing->drawing_area->window);
+      gdk_gc_copy(drawing->dotted_gc, widget->style->white_gc);
+   
+      gint8 dash_list[] = { 1, 2 };
+      gdk_gc_set_line_attributes(drawing->dotted_gc,
+                                 1,
+                                 GDK_LINE_ON_OFF_DASH,
+                                 GDK_CAP_BUTT,
+                                 GDK_JOIN_MITER);
+      gdk_gc_set_dashes(drawing->dotted_gc,
+                        0,
+                        dash_list,
+                        2);
+    }
+
+    drawing_draw_line(NULL, widget->window,
+                  cursor_x, 0,
+                  cursor_x, drawing->height,
+                  drawing->dotted_gc);
+  }
   return FALSE;
 }
 
@@ -366,13 +648,34 @@ static gboolean
 after_expose_event( GtkWidget *widget, GdkEventExpose *event, gpointer user_data )
 {
   //g_assert(0);
-  g_critical("AFTER EXPOSE");
+  g_debug("AFTER EXPOSE");
 
   return FALSE;
 
 
 }
 
+#if 0
+void
+tree_row_activated(GtkTreeModel *treemodel,
+                   GtkTreePath *arg1,
+                   GtkTreeViewColumn *arg2,
+                   gpointer user_data)
+{
+  ControlFlowData *cfd = (ControlFlowData*)user_data;
+  Drawing_t *drawing = cfd->drawing;
+  GtkTreeView *treeview = cfd->process_list->process_list_widget;
+  gint *path_indices;
+  gint height;
+  
+  path_indices =  gtk_tree_path_get_indices (arg1);
+
+  height = get_cell_height(cfd->process_list,
+        GTK_TREE_VIEW(treeview));
+  drawing->horizontal_sel = height * path_indices[0];
+  g_critical("new hor sel : %i", drawing->horizontal_sel);
+}
+#endif //0
 
 /* mouse click */
 static gboolean
@@ -383,34 +686,46 @@ button_press_event( GtkWidget *widget, GdkEventButton *event, gpointer user_data
                 G_OBJECT(widget),
                 "control_flow_data");
   Drawing_t *drawing = control_flow_data->drawing;
-  const TimeWindow *time_window = lttvwindow_get_time_window(drawing->control_flow_data->mw);
+  TimeWindow time_window =
+               lttvwindow_get_time_window(control_flow_data->tab);
 
   g_debug("click");
   if(event->button == 1)
   {
     LttTime time;
 
-    LttTime window_end = ltt_time_add(time_window->time_width,
-                                      time_window->start_time);
+    LttTime window_end = ltt_time_add(time_window.time_width,
+                                      time_window.start_time);
 
 
     /* left mouse button click */
     g_debug("x click is : %f", event->x);
 
-    convert_pixels_to_time(widget->allocation.width, (guint)event->x,
-        time_window->start_time,
+    convert_pixels_to_time(drawing->width, (guint)event->x,
+        time_window.start_time,
         window_end,
         &time);
 
-    lttvwindow_report_current_time(control_flow_data->mw, &time);
+    lttvwindow_report_current_time(control_flow_data->tab, time);
 
   }
 
-  lttvwindow_report_focus(control_flow_data->mw, gtk_widget_get_parent(control_flow_data->scrolled_window));
-  
   return FALSE;
 }
 
+static gboolean
+scrollbar_size_allocate(GtkWidget *widget,
+                        GtkAllocation *allocation,
+                        gpointer user_data)
+{
+  Drawing_t *drawing = (Drawing_t*)user_data;
+
+  gtk_widget_set_size_request(drawing->padding, allocation->width, -1);
+  //gtk_widget_queue_resize(drawing->padding);
+  //gtk_widget_queue_resize(drawing->ruler);
+  gtk_container_check_resize(GTK_CONTAINER(drawing->ruler_hbox));
+  return 0;
+}
 
 
 
@@ -421,24 +736,65 @@ Drawing_t *drawing_construct(ControlFlowData *control_flow_data)
   drawing->control_flow_data = control_flow_data;
 
   drawing->vbox = gtk_vbox_new(FALSE, 1);
+
+  
+  drawing->ruler_hbox = gtk_hbox_new(FALSE, 1);
   drawing->ruler = gtk_drawing_area_new ();
-  gtk_widget_set_size_request(drawing->ruler, -1, 27);
+  //gtk_widget_set_size_request(drawing->ruler, -1, 27);
   
-  drawing->drawing_area = gtk_drawing_area_new ();
+  drawing->padding = gtk_drawing_area_new ();
+  //gtk_widget_set_size_request(drawing->padding, -1, 27);
+  gtk_box_pack_start(GTK_BOX(drawing->ruler_hbox), drawing->ruler, 
+                     TRUE, TRUE, 0);
+  gtk_box_pack_end(GTK_BOX(drawing->ruler_hbox), drawing->padding, 
+                     FALSE, FALSE, 0);
+  
+
 
-  gtk_box_pack_start(GTK_BOX(drawing->vbox), drawing->ruler, 
+  drawing->drawing_area = gtk_drawing_area_new ();
+  
+  drawing->gc = NULL;
+  
+  drawing->hbox = gtk_hbox_new(FALSE, 1);
+  drawing->viewport = gtk_viewport_new(NULL, control_flow_data->v_adjust);
+  drawing->scrollbar = gtk_vscrollbar_new(control_flow_data->v_adjust);
+  gtk_box_pack_start(GTK_BOX(drawing->hbox), drawing->viewport, 
+                     TRUE, TRUE, 0);
+  gtk_box_pack_end(GTK_BOX(drawing->hbox), drawing->scrollbar, 
                      FALSE, FALSE, 0);
-  gtk_box_pack_end(GTK_BOX(drawing->vbox), drawing->drawing_area,
+  
+  //drawing->scrolled_window =
+  //    gtk_scrolled_window_new (NULL,
+  //    control_flow_data->v_adjust);
+  
+  //gtk_scrolled_window_set_policy(
+  //  GTK_SCROLLED_WINDOW(drawing->scrolled_window),
+  //  GTK_POLICY_NEVER,
+  //  GTK_POLICY_AUTOMATIC);
+
+  gtk_container_add(GTK_CONTAINER(drawing->viewport),
+                    drawing->drawing_area);
+  //gtk_scrolled_window_add_with_viewport(
+  //  GTK_SCROLLED_WINDOW(drawing->scrolled_window),
+  //  drawing->drawing_area);
+
+  gtk_box_pack_start(GTK_BOX(drawing->vbox), drawing->ruler_hbox, 
+                     FALSE, FALSE, 0);
+  gtk_box_pack_end(GTK_BOX(drawing->vbox), drawing->hbox,
                    TRUE, TRUE, 0);
   
   drawing->pango_layout =
     gtk_widget_create_pango_layout(drawing->drawing_area, NULL);
-  
-  drawing->height = 0;
-  drawing->width = 0;
+
+  drawing->dotted_gc = NULL;
+
+  drawing->height = 1;
+  drawing->width = 1;
   drawing->depth = 0;
   
-  drawing->data_injected = FALSE;
+  drawing->damage_begin = 0;
+  drawing->damage_end = 0;
+  drawing->horizontal_sel = -1;
   
   //gtk_widget_set_size_request(drawing->drawing_area->window, 50, 50);
   g_object_set_data_full(
@@ -476,8 +832,6 @@ Drawing_t *drawing_construct(ControlFlowData *control_flow_data)
 //        drawing->drawing_area->allocation.height,
 //        -1);
 
-  gtk_widget_add_events(drawing->drawing_area, GDK_BUTTON_PRESS_MASK);
-  
   g_signal_connect (G_OBJECT(drawing->drawing_area),
         "configure_event",
         G_CALLBACK (configure_event),
@@ -496,6 +850,13 @@ Drawing_t *drawing_construct(ControlFlowData *control_flow_data)
         (gpointer)drawing);
 
 
+  g_signal_connect (G_OBJECT(drawing->scrollbar),
+        "size-allocate",
+        G_CALLBACK(scrollbar_size_allocate),
+        (gpointer)drawing);
+
+
+
   g_signal_connect (G_OBJECT(drawing->drawing_area),
         "expose_event",
         G_CALLBACK (expose_event),
@@ -512,20 +873,44 @@ Drawing_t *drawing_construct(ControlFlowData *control_flow_data)
         (gpointer)drawing);
   
   gtk_widget_show(drawing->ruler);
+  gtk_widget_show(drawing->padding);
+  gtk_widget_show(drawing->ruler_hbox);
+
   gtk_widget_show(drawing->drawing_area);
-    
+  //gtk_widget_show(drawing->scrolled_window);
+  gtk_widget_show(drawing->viewport);
+  gtk_widget_show(drawing->scrollbar);
+  gtk_widget_show(drawing->hbox);
+
+  /* Allocate the colors */
+  GdkColormap* colormap = gdk_colormap_get_system();
+  gboolean success[NUM_COLORS];
+  gdk_colormap_alloc_colors(colormap, drawing_colors, NUM_COLORS, FALSE,
+                            TRUE, success);
   
   return drawing;
 }
 
 void drawing_destroy(Drawing_t *drawing)
 {
+  g_info("drawing_destroy %p", drawing);
+
+  /* Free the colors */
+  GdkColormap* colormap = gdk_colormap_get_system();
+
+  gdk_colormap_free_colors(colormap, drawing_colors, NUM_COLORS);
+  
+
 
   // Do not unref here, Drawing_t destroyed by it's widget.
   //g_object_unref( G_OBJECT(drawing->drawing_area));
-    
+  if(drawing->gc != NULL)
+    gdk_gc_unref(drawing->gc);
+  
   g_free(drawing->pango_layout);
+  if(!drawing->dotted_gc) gdk_gc_unref(drawing->dotted_gc);
   g_free(drawing);
+  g_info("drawing_destroy end");
 }
 
 GtkWidget *drawing_get_drawing_area(Drawing_t *drawing)
@@ -542,7 +927,7 @@ GtkWidget *drawing_get_widget(Drawing_t *drawing)
  *
  * Convert from window pixel and time interval to an absolute time.
  */
-void convert_pixels_to_time(
+__inline void convert_pixels_to_time(
     gint width,
     guint x,
     LttTime window_time_begin,
@@ -550,16 +935,18 @@ void convert_pixels_to_time(
     LttTime *time)
 {
   LttTime window_time_interval;
+  double time_d;
   
   window_time_interval = ltt_time_sub(window_time_end, 
             window_time_begin);
-  *time = ltt_time_mul(window_time_interval, (x/(float)width));
+  time_d = ltt_time_to_double(window_time_interval);
+  time_d = time_d / (double)width * (double)x;
+  *time = ltt_time_from_double(time_d);
   *time = ltt_time_add(window_time_begin, *time);
 }
 
 
-
-void convert_time_to_pixels(
+__inline void convert_time_to_pixels(
     LttTime window_time_begin,
     LttTime window_time_end,
     LttTime time,
@@ -567,16 +954,24 @@ void convert_time_to_pixels(
     guint *x)
 {
   LttTime window_time_interval;
-  float interval_float, time_float;
-  
+  double time_d, interval_d;
+#ifdef EXTRA_CHECK 
+  g_assert(ltt_time_compare(window_time_begin, time) <= 0 &&
+           ltt_time_compare(window_time_end, time) >= 0);
+#endif //EXTRA_CHECK
   window_time_interval = ltt_time_sub(window_time_end,window_time_begin);
   
   time = ltt_time_sub(time, window_time_begin);
   
-  interval_float = ltt_time_to_double(window_time_interval);
-  time_float = ltt_time_to_double(time);
-
-  *x = (guint)(time_float/interval_float * width);
+  time_d = ltt_time_to_double(time);
+  interval_d = ltt_time_to_double(window_time_interval);
+  
+  if(interval_d == 0.0) {
+    g_assert(time_d == 0.0);
+    *x = 0;
+  } else {
+    *x = (guint)(time_d / interval_d * (double)width);
+  }
   
 }
 
@@ -591,19 +986,27 @@ void drawing_draw_line( Drawing_t *drawing,
       x1, y1, x2, y2);
 }
 
+void drawing_clear(Drawing_t *drawing)
+{ 
+  if (drawing->pixmap)
+    gdk_pixmap_unref(drawing->pixmap);
 
-
-
-void drawing_resize(Drawing_t *drawing, guint h, guint w)
-{
-  drawing->height = h ;
-  drawing->width = w ;
-
-  gtk_widget_set_size_request ( drawing->drawing_area,
-          drawing->width,
-          drawing->height);
-  
+  drawing->height = 1;
+  /* Allocate a new pixmap with new height */
+  drawing->pixmap = gdk_pixmap_new(drawing->drawing_area->window,
+                                   drawing->width + SAFETY,
+                                   drawing->height,
+                                     -1);
+
+  gtk_widget_set_size_request(drawing->drawing_area,
+                             -1,
+                             drawing->height);
+  gtk_widget_queue_resize_no_redraw(drawing->drawing_area);
   
+  /* ask for the buffer to be redrawn */
+  gtk_widget_queue_draw_area ( drawing->drawing_area,
+                               0, 0,
+                               drawing->width, drawing->height);
 }
 
 
@@ -618,7 +1021,7 @@ void drawing_insert_square(Drawing_t *drawing,
   /* Allocate a new pixmap with new height */
   GdkPixmap *pixmap = gdk_pixmap_new(drawing->drawing_area->window,
         drawing->width + SAFETY,
-        drawing->height + height + SAFETY,
+        drawing->height + height,
         -1);
   
   /* Copy the high region */
@@ -648,9 +1051,7 @@ void drawing_insert_square(Drawing_t *drawing,
     drawing->pixmap,
     0, y,
     0, y + height,
-    drawing->width+SAFETY, drawing->height - y + SAFETY);
-
-
+    drawing->width+SAFETY, drawing->height - y);
 
 
   if (drawing->pixmap)
@@ -658,14 +1059,18 @@ void drawing_insert_square(Drawing_t *drawing,
 
   drawing->pixmap = pixmap;
   
-  drawing->height+=height;
-
-  /* Rectangle to update, from new drawing dimensions */
-  //update_rect.x = 0 ;
-  //update_rect.y = y ;
-  //update_rect.width = drawing->width;
-  //update_rect.height = drawing->height - y ;
-  //gtk_widget_draw( drawing->drawing_area, &update_rect);
+  if(drawing->height==1) drawing->height = height;
+  else drawing->height += height;
+  
+  gtk_widget_set_size_request(drawing->drawing_area,
+                             -1,
+                             drawing->height);
+  gtk_widget_queue_resize_no_redraw(drawing->drawing_area);
+  
+  /* ask for the buffer to be redrawn */
+  gtk_widget_queue_draw_area ( drawing->drawing_area,
+                               0, y,
+                               drawing->width, drawing->height-y);
 }
 
 
@@ -674,47 +1079,55 @@ void drawing_remove_square(Drawing_t *drawing,
         guint y,
         guint height)
 {
-  //GdkRectangle update_rect;
-  
-  /* Allocate a new pixmap with new height */
-  GdkPixmap *pixmap = gdk_pixmap_new(
-      drawing->drawing_area->window,
-      drawing->width + SAFETY,
-      drawing->height - height + SAFETY,
-      -1);
-  
-  /* Copy the high region */
-  gdk_draw_drawable (pixmap,
-    drawing->drawing_area->style->black_gc,
-    drawing->pixmap,
-    0, 0,
-    0, 0,
-    drawing->width + SAFETY, y);
-
+  GdkPixmap *pixmap;
 
+  if(drawing->height == height) {
+    pixmap = gdk_pixmap_new(
+        drawing->drawing_area->window,
+        drawing->width + SAFETY,
+        1,
+        -1);
+    drawing->height=1;
+  } else {
+    /* Allocate a new pixmap with new height */
+     pixmap = gdk_pixmap_new(
+        drawing->drawing_area->window,
+        drawing->width + SAFETY,
+        drawing->height - height,
+        -1);
+   
+    /* Copy the high region */
+    gdk_draw_drawable (pixmap,
+      drawing->drawing_area->style->black_gc,
+      drawing->pixmap,
+      0, 0,
+      0, 0,
+      drawing->width + SAFETY, y);
 
-  /* Copy up the bottom of the region */
-  gdk_draw_drawable (pixmap,
-    drawing->drawing_area->style->black_gc,
-    drawing->pixmap,
-    0, y + height,
-    0, y,
-    drawing->width, drawing->height - y - height + SAFETY);
+    /* Copy up the bottom of the region */
+    gdk_draw_drawable (pixmap,
+      drawing->drawing_area->style->black_gc,
+      drawing->pixmap,
+      0, y + height,
+      0, y,
+      drawing->width, drawing->height - y - height);
 
+    drawing->height-=height;
+  }
 
   if (drawing->pixmap)
     gdk_pixmap_unref(drawing->pixmap);
 
   drawing->pixmap = pixmap;
   
-  drawing->height-=height;
-  
-  /* Rectangle to update, from new drawing dimensions */
-  //update_rect.x = 0 ;
-  //update_rect.y = y ;
-  //update_rect.width = drawing->width;
-  //update_rect.height = drawing->height - y ;
-  //gtk_widget_draw( drawing->drawing_area, &update_rect);
+  gtk_widget_set_size_request(drawing->drawing_area,
+                             -1,
+                             drawing->height);
+  gtk_widget_queue_resize_no_redraw(drawing->drawing_area);
+  /* ask for the buffer to be redrawn */
+  gtk_widget_queue_draw_area ( drawing->drawing_area,
+                               0, y,
+                               drawing->width, MAX(drawing->height-y, 1));
 }
 
 void drawing_update_ruler(Drawing_t *drawing, TimeWindow *time_window)
@@ -740,7 +1153,7 @@ static gboolean
 expose_ruler( GtkWidget *widget, GdkEventExpose *event, gpointer user_data )
 {
   Drawing_t *drawing = (Drawing_t*)user_data;
-  const TimeWindow *time_window = lttvwindow_get_time_window(drawing->control_flow_data->mw);
+  TimeWindow time_window = lttvwindow_get_time_window(drawing->control_flow_data->tab);
   gchar text[255];
   
   PangoContext *context;
@@ -754,13 +1167,13 @@ expose_ruler( GtkWidget *widget, GdkEventExpose *event, gpointer user_data )
   GdkColor background = { 0, 0xffff, 0xffff, 0xffff };
 
   LttTime window_end = 
-    ltt_time_add(time_window->time_width,
-                 time_window->start_time);
+    ltt_time_add(time_window.time_width,
+                 time_window.start_time);
   LttTime half_width =
-    ltt_time_div(time_window->time_width,2.0);
+    ltt_time_div(time_window.time_width,2.0);
   LttTime window_middle =
     ltt_time_add(half_width,
-                 time_window->start_time);
+                 time_window.start_time);
   g_debug("ruler expose event");
  
   gdk_draw_rectangle (drawing->ruler->window,
@@ -784,8 +1197,8 @@ expose_ruler( GtkWidget *widget, GdkEventExpose *event, gpointer user_data )
 
 
   snprintf(text, 255, "%lus\n%luns",
-    time_window->start_time.tv_sec,
-    time_window->start_time.tv_nsec);
+    time_window.start_time.tv_sec,
+    time_window.start_time.tv_nsec);
 
   layout = gtk_widget_create_pango_layout(drawing->drawing_area, NULL);
 
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