ltt/branches/poly/lttv/modules/gui/detailedevents/events.c

   1 /* This file is part of the Linux Trace Toolkit viewer
   2  * Copyright (C) 2003-2004 Mathieu Desnoyers and XangXiu Yang
   3  *               2005 Mathieu Desnoyers
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License Version 2 as
   7  * published by the Free Software Foundation;
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  17  * MA 02111-1307, USA.
  18  */
  19
  20
  21 //*! \defgroup GuiEvents libGuiEvents: The GUI Events display plugin */
  22 /*\@{*/
  23
  24 /*! \file GuiEvents.c
  25  * \brief Graphical plugin for showing events.
  26  *
  27  * This plugin lists all the events contained in the current time interval
  28  * in a list.
  29  *
  30  * This plugin adds a Events Viewer functionnality to Linux TraceToolkit
  31  * GUI when this plugin is loaded. The init and destroy functions add the
  32  * viewer's insertion menu item and toolbar icon by calling viewer.h's
  33  * API functions. Then, when a viewer's object is created, the constructor
  34  * creates ans register through API functions what is needed to interact
  35  * with the lttvwindow.
  36  *
  37  * Authors : Mathieu Desnoyers and XangXiu Yang, June to December 2003
  38  *           Inspired from original LTT, made by Karim Yaghmour
  39  *
  40  *           Mostly rewritten by Mathieu Desnoyers, August 2005.
  41  */
  42
  43 #ifdef HAVE_CONFIG_H
  44 #include <config.h>
  45 #endif
  46
  47 #include <math.h>
  48
  49 #include <glib.h>
  50 #include <gtk/gtk.h>
  51 #include <gdk/gdk.h>
  52 #include <string.h>
  53
  54 #include <ltt/ltt.h>
  55 #include <ltt/event.h>
  56 #include <ltt/type.h>
  57 #include <ltt/trace.h>
  58 #include <ltt/facility.h>
  59 #include <lttv/module.h>
  60 #include <lttv/hook.h>
  61 #include <lttv/tracecontext.h>
  62 #include <lttv/state.h>
  63 #include <lttv/filter.h>
  64 #include <lttv/print.h>
  65 #include <lttvwindow/lttvwindow.h>
  66
  67 #include "hGuiEventsInsert.xpm"
  68
  69 #define g_info(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_INFO, format)
  70
  71 #ifndef g_debug
  72 #define g_debug(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, format)
  73 #endif
  74
  75 #define abs(a) (((a)<0)?(-a):(a))
  76
  77
  78 /** Array containing instanced objects. Used when module is unloaded */
  79 static GSList *g_event_viewer_data_list = NULL ;
  80
  81 typedef enum _ScrollDirection{
  82   SCROLL_STEP_UP,
  83   SCROLL_STEP_DOWN,
  84   SCROLL_PAGE_UP,
  85   SCROLL_PAGE_DOWN,
  86   SCROLL_JUMP,
  87   SCROLL_NONE
  88 } ScrollDirection;
  89
  90 typedef struct _EventViewerData {
  91
  92   Tab * tab;
  93   LttvHooks  * event_hooks;
  94
  95   /* previous value is used to determine if it is a page up/down or
  96    * step up/down, in which case we move of a certain amount of events (one or
  97    * the number of events shown on the screen) instead of changing begin time.
  98    */
  99   double       previous_value;
 100
 101   //scroll window containing Tree View
 102   GtkWidget * scroll_win;
 103
 104   /* Model containing list data */
 105   GtkListStore *store_m;
 106
 107   GPtrArray *pos; /* Array of LttvTracesetContextPosition * */
 108
 109   GtkWidget *top_widget;
 110   GtkWidget *hbox_v;
 111   /* Widget to display the data in a columned list */
 112   GtkWidget *tree_v;
 113   GtkAdjustment *vtree_adjust_c ;
 114   GtkWidget *button; /* a button of the header, used to get the header_height */
 115   gint header_height;
 116
 117   /* Vertical scrollbar and its adjustment */
 118   GtkWidget *vscroll_vc;
 119   GtkAdjustment *vadjust_c;
 120
 121   /* Selection handler */
 122   GtkTreeSelection *select_c;
 123
 124   gint num_visible_events;
 125
 126   LttvTracesetContextPosition *currently_selected_position;
 127
 128   LttvTracesetContextPosition *first_event;  /* Time of the first event shown */
 129   LttvTracesetContextPosition *last_event;  /* Time of the first event shown */
 130
 131   LttvFilter *main_win_filter;
 132
 133 } EventViewerData ;
 134
 135 /** hook functions for update time interval, current time ... */
 136 gboolean update_current_time(void * hook_data, void * call_data);
 137 gboolean update_current_position(void * hook_data, void * call_data);
 138 //gboolean show_event_detail(void * hook_data, void * call_data);
 139 gboolean traceset_changed(void * hook_data, void * call_data);
 140 gboolean filter_changed(void * hook_data, void * call_data);
 141
 142 //! Event Viewer's constructor hook
 143 GtkWidget *h_gui_events(Tab *tab);
 144 //! Event Viewer's constructor
 145 EventViewerData *gui_events(Tab *tab);
 146 //! Event Viewer's destructor
 147 void gui_events_destructor(EventViewerData *event_viewer_data);
 148 void gui_events_free(EventViewerData *event_viewer_data);
 149
 150 static gboolean
 151 header_size_allocate(GtkWidget *widget,
 152                         GtkAllocation *allocation,
 153                         gpointer user_data);
 154
 155 void tree_v_set_cursor(EventViewerData *event_viewer_data);
 156 void tree_v_get_cursor(EventViewerData *event_viewer_data);
 157
 158 /* Prototype for selection handler callback */
 159 static void tree_selection_changed_cb (GtkTreeSelection *selection,
 160     gpointer data);
 161 static void v_scroll_cb (GtkAdjustment *adjustment, gpointer data);
 162 static void tree_v_size_allocate_cb (GtkWidget *widget, GtkAllocation *alloc,
 163     gpointer data);
 164 static void tree_v_size_request_cb (GtkWidget *widget,
 165     GtkRequisition *requisition, gpointer data);
 166 static void tree_v_cursor_changed_cb (GtkWidget *widget, gpointer data);
 167 static void tree_v_move_cursor_cb (GtkWidget *widget, GtkMovementStep arg1,
 168     gint arg2, gpointer data);
 169
 170
 171 static void get_events(double time, EventViewerData *event_viewer_data);
 172
 173 int event_hook(void *hook_data, void *call_data);
 174
 175 /* Enumeration of the columns */
 176 enum
 177 {
 178   TRACE_NAME_COLUMN,
 179   TRACEFILE_NAME_COLUMN,
 180   CPUID_COLUMN,
 181   EVENT_COLUMN,
 182   FACILITY_COLUMN,
 183   TIME_S_COLUMN,
 184   TIME_NS_COLUMN,
 185   PID_COLUMN,
 186   EVENT_DESCR_COLUMN,
 187   POSITION_COLUMN,
 188   N_COLUMNS
 189 };
 190
 191 /**
 192  * Event Viewer's constructor hook
 193  *
 194  * This constructor is given as a parameter to the menuitem and toolbar button
 195  * registration. It creates the list.
 196  * @param parent_window A pointer to the parent window.
 197  * @return The widget created.
 198  */
 199 GtkWidget *
 200 h_gui_events(Tab * tab)
 201 {
 202   EventViewerData* event_viewer_data = gui_events(tab) ;
 203   if(event_viewer_data)
 204     return event_viewer_data->top_widget;
 205   else return NULL;
 206
 207 }
 208
 209 /**
 210  * Event Viewer's constructor
 211  *
 212  * This constructor is used to create EventViewerData data structure.
 213  * @return The Event viewer data created.
 214  */
 215 EventViewerData *
 216 gui_events(Tab *tab)
 217 {
 218   LttTime end;
 219   GtkTreeViewColumn *column;
 220   GtkCellRenderer *renderer;
 221   EventViewerData* event_viewer_data = g_new(EventViewerData,1) ;
 222
 223   event_viewer_data->tab = tab;
 224
 225   LttvTracesetContext * tsc =
 226         lttvwindow_get_traceset_context(event_viewer_data->tab);
 227
 228
 229   event_viewer_data->event_hooks = lttv_hooks_new();
 230   lttv_hooks_add(event_viewer_data->event_hooks,
 231                  event_hook,
 232                  event_viewer_data,
 233                  LTTV_PRIO_DEFAULT);
 234
 235   lttvwindow_register_current_time_notify(tab,
 236                 update_current_time,event_viewer_data);
 237   lttvwindow_register_current_position_notify(tab,
 238                 update_current_position,event_viewer_data);
 239   lttvwindow_register_traceset_notify(tab,
 240                 traceset_changed,event_viewer_data);
 241   lttvwindow_register_filter_notify(tab,
 242                 filter_changed, event_viewer_data);
 243
 244   event_viewer_data->scroll_win = gtk_scrolled_window_new (NULL, NULL);
 245   gtk_widget_show (event_viewer_data->scroll_win);
 246   gtk_scrolled_window_set_policy(
 247       GTK_SCROLLED_WINDOW(event_viewer_data->scroll_win),
 248       GTK_POLICY_AUTOMATIC, GTK_POLICY_NEVER);
 249
 250   event_viewer_data->currently_selected_position =
 251     lttv_traceset_context_position_new(tsc);
 252   event_viewer_data->first_event =
 253     lttv_traceset_context_position_new(tsc);
 254   event_viewer_data->last_event =
 255     lttv_traceset_context_position_new(tsc);
 256
 257   event_viewer_data->main_win_filter = NULL;
 258
 259   /* Create a model for storing the data list */
 260   event_viewer_data->store_m = gtk_list_store_new (
 261     N_COLUMNS,      /* Total number of columns     */
 262     G_TYPE_STRING,  /* Trace name                  */
 263     G_TYPE_STRING,  /* Tracefile name              */
 264     G_TYPE_UINT,    /* CPUID                       */
 265     G_TYPE_STRING,  /* Event                       */
 266     G_TYPE_STRING,  /* Facility                    */
 267     G_TYPE_UINT,    /* Time s                      */
 268     G_TYPE_UINT,    /* Time ns                     */
 269     G_TYPE_INT,     /* PID                         */
 270     G_TYPE_STRING,  /* Event's description         */
 271     G_TYPE_POINTER);/* Position (not shown)        */
 272
 273   event_viewer_data->pos = g_ptr_array_sized_new(10);
 274
 275   /* Create the viewer widget for the columned list */
 276   event_viewer_data->tree_v =
 277     gtk_tree_view_new_with_model (GTK_TREE_MODEL (event_viewer_data->store_m));
 278
 279   g_signal_connect (G_OBJECT (event_viewer_data->tree_v), "size-allocate",
 280         G_CALLBACK (tree_v_size_allocate_cb),
 281         event_viewer_data);
 282   g_signal_connect (G_OBJECT (event_viewer_data->tree_v), "size-request",
 283         G_CALLBACK (tree_v_size_request_cb),
 284         event_viewer_data);
 285
 286   g_signal_connect (G_OBJECT (event_viewer_data->tree_v), "cursor-changed",
 287         G_CALLBACK (tree_v_cursor_changed_cb),
 288         event_viewer_data);
 289
 290   g_signal_connect (G_OBJECT (event_viewer_data->tree_v), "move-cursor",
 291         G_CALLBACK (tree_v_move_cursor_cb),
 292         event_viewer_data);
 293
 294   // Use on each column!
 295   //gtk_tree_view_column_set_sizing(event_viewer_data->tree_v,
 296   //GTK_TREE_VIEW_COLUMN_FIXED);
 297
 298   /* The view now holds a reference.  We can get rid of our own
 299    * reference */
 300   g_object_unref (G_OBJECT (event_viewer_data->store_m));
 301
 302
 303   /* Create a column, associating the "text" attribute of the
 304    * cell_renderer to the first column of the model */
 305   /* Columns alignment : 0.0 : Left    0.5 : Center   1.0 : Right */
 306   renderer = gtk_cell_renderer_text_new ();
 307   column = gtk_tree_view_column_new_with_attributes ("Trace",
 308                  renderer,
 309                  "text", TRACE_NAME_COLUMN,
 310                  NULL);
 311   gtk_tree_view_column_set_alignment (column, 0.0);
 312   gtk_tree_view_column_set_fixed_width (column, 120);
 313   gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->tree_v),
 314       column);
 315
 316   event_viewer_data->button = column->button;
 317
 318   g_signal_connect (G_OBJECT(event_viewer_data->button),
 319         "size-allocate",
 320         G_CALLBACK(header_size_allocate),
 321         (gpointer)event_viewer_data);
 322
 323
 324
 325   renderer = gtk_cell_renderer_text_new ();
 326   column = gtk_tree_view_column_new_with_attributes ("Tracefile",
 327                  renderer,
 328                  "text", TRACEFILE_NAME_COLUMN,
 329                  NULL);
 330   gtk_tree_view_column_set_alignment (column, 0.0);
 331   gtk_tree_view_column_set_fixed_width (column, 120);
 332   gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->tree_v),
 333       column);
 334
 335
 336   renderer = gtk_cell_renderer_text_new ();
 337   column = gtk_tree_view_column_new_with_attributes ("CPUID",
 338                  renderer,
 339                  "text", CPUID_COLUMN,
 340                  NULL);
 341   gtk_tree_view_column_set_alignment (column, 0.0);
 342   gtk_tree_view_column_set_fixed_width (column, 45);
 343   gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->tree_v),
 344       column);
 345
 346   renderer = gtk_cell_renderer_text_new ();
 347   column = gtk_tree_view_column_new_with_attributes ("Event",
 348                  renderer,
 349                  "text", EVENT_COLUMN,
 350                  NULL);
 351   gtk_tree_view_column_set_alignment (column, 0.0);
 352   gtk_tree_view_column_set_fixed_width (column, 120);
 353   gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->tree_v),
 354       column);
 355
 356   renderer = gtk_cell_renderer_text_new ();
 357   column = gtk_tree_view_column_new_with_attributes ("Facility",
 358                  renderer,
 359                  "text", FACILITY_COLUMN,
 360                  NULL);
 361   gtk_tree_view_column_set_alignment (column, 0.0);
 362   gtk_tree_view_column_set_fixed_width (column, 120);
 363   gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->tree_v),
 364       column);
 365
 366   renderer = gtk_cell_renderer_text_new ();
 367   column = gtk_tree_view_column_new_with_attributes ("Time (s)",
 368                  renderer,
 369                  "text", TIME_S_COLUMN,
 370                  NULL);
 371   gtk_tree_view_column_set_alignment (column, 1.0);
 372   gtk_tree_view_column_set_fixed_width (column, 120);
 373   gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->tree_v),
 374       column);
 375
 376   renderer = gtk_cell_renderer_text_new ();
 377   column = gtk_tree_view_column_new_with_attributes ("Time (ns)",
 378                  renderer,
 379                  "text", TIME_NS_COLUMN,
 380                  NULL);
 381   gtk_tree_view_column_set_alignment (column, 1.0);
 382   gtk_tree_view_column_set_fixed_width (column, 120);
 383   gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->tree_v),
 384       column);
 385
 386
 387   renderer = gtk_cell_renderer_text_new ();
 388   column = gtk_tree_view_column_new_with_attributes ("PID",
 389                  renderer,
 390                  "text", PID_COLUMN,
 391                  NULL);
 392   gtk_tree_view_column_set_alignment (column, 1.0);
 393   gtk_tree_view_column_set_fixed_width (column, 45);
 394   gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->tree_v),
 395       column);
 396
 397   renderer = gtk_cell_renderer_text_new ();
 398   column = gtk_tree_view_column_new_with_attributes ("Event Description",
 399                  renderer,
 400                  "text", EVENT_DESCR_COLUMN,
 401                  NULL);
 402   gtk_tree_view_column_set_alignment (column, 0.0);
 403   gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->tree_v),
 404       column);
 405
 406
 407   /* Setup the selection handler */
 408   event_viewer_data->select_c =
 409     gtk_tree_view_get_selection (GTK_TREE_VIEW (event_viewer_data->tree_v));
 410   gtk_tree_selection_set_mode (event_viewer_data->select_c,
 411       GTK_SELECTION_SINGLE);
 412   g_signal_connect (G_OBJECT (event_viewer_data->select_c), "changed",
 413         G_CALLBACK (tree_selection_changed_cb),
 414         event_viewer_data);
 415
 416   gtk_container_add (GTK_CONTAINER (event_viewer_data->scroll_win),
 417       event_viewer_data->tree_v);
 418
 419   event_viewer_data->hbox_v = gtk_hbox_new(0, 0);
 420   event_viewer_data->top_widget = event_viewer_data->hbox_v;
 421   gtk_box_pack_start(GTK_BOX(event_viewer_data->hbox_v),
 422       event_viewer_data->scroll_win, TRUE, TRUE, 0);
 423
 424   /* Create vertical scrollbar and pack it */
 425   event_viewer_data->vscroll_vc = gtk_vscrollbar_new(NULL);
 426   gtk_range_set_update_policy (GTK_RANGE(event_viewer_data->vscroll_vc),
 427              GTK_UPDATE_CONTINUOUS);
 428              // Changed by MD : more user friendly :)
 429              //GTK_UPDATE_DISCONTINUOUS);
 430   gtk_box_pack_start(GTK_BOX(event_viewer_data->hbox_v),
 431       event_viewer_data->vscroll_vc, FALSE, TRUE, 0);
 432
 433   /* Get the vertical scrollbar's adjustment */
 434   event_viewer_data->vadjust_c =
 435     gtk_range_get_adjustment(GTK_RANGE(event_viewer_data->vscroll_vc));
 436   event_viewer_data->vtree_adjust_c = gtk_tree_view_get_vadjustment(
 437                     GTK_TREE_VIEW (event_viewer_data->tree_v));
 438
 439   g_signal_connect (G_OBJECT (event_viewer_data->vadjust_c), "value-changed",
 440         G_CALLBACK (v_scroll_cb),
 441         event_viewer_data);
 442   /* Set the upper bound to the last event number */
 443   event_viewer_data->previous_value = 0;
 444   event_viewer_data->vadjust_c->lower = 0.0;
 445     //event_viewer_data->vadjust_c->upper = event_viewer_data->number_of_events;
 446   event_viewer_data->vadjust_c->value = 0.0;
 447   event_viewer_data->vadjust_c->step_increment = 1.0;
 448   event_viewer_data->vadjust_c->page_increment = 2.0;
 449     //  event_viewer_data->vtree_adjust_c->upper;
 450   event_viewer_data->vadjust_c->page_size = 2.0;
 451   //    event_viewer_data->vtree_adjust_c->upper;
 452   /*  Raw event trace */
 453   gtk_widget_show(event_viewer_data->hbox_v);
 454   gtk_widget_show(event_viewer_data->tree_v);
 455   gtk_widget_show(event_viewer_data->vscroll_vc);
 456
 457   /* Add the object's information to the module's array */
 458   g_event_viewer_data_list = g_slist_append(g_event_viewer_data_list,
 459       event_viewer_data);
 460
 461   event_viewer_data->num_visible_events = 1;
 462
 463   //get the life span of the traceset and set the upper of the scroll bar
 464
 465   TimeInterval time_span = tsc->time_span;
 466   end = ltt_time_sub(time_span.end_time, time_span.start_time);
 467
 468   event_viewer_data->vadjust_c->upper =
 469               ltt_time_to_double(end);
 470
 471   /* Set the Selected Event */
 472   //  tree_v_set_cursor(event_viewer_data);
 473
 474  // event_viewer_data->current_time_updated = FALSE;
 475  //
 476   g_object_set_data_full(
 477       G_OBJECT(event_viewer_data->hbox_v),
 478       "event_viewer_data",
 479       event_viewer_data,
 480       (GDestroyNotify)gui_events_free);
 481
 482
 483   return event_viewer_data;
 484 }
 485
 486
 487
 488 static gboolean
 489 header_size_allocate(GtkWidget *widget,
 490                         GtkAllocation *allocation,
 491                         gpointer user_data)
 492 {
 493   EventViewerData *event_viewer_data = (EventViewerData*)user_data;
 494
 495   event_viewer_data->header_height = allocation->height;
 496
 497   return 0;
 498 }
 499
 500
 501 void tree_v_set_cursor(EventViewerData *event_viewer_data)
 502 {
 503   GtkTreePath *path;
 504
 505   g_debug("set cursor cb");
 506
 507 #if 0
 508   if(event_viewer_data->currently_selected_event != -1)
 509     {
 510       path = gtk_tree_path_new_from_indices(
 511               event_viewer_data->currently_selected_event,
 512               -1);
 513
 514       gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
 515           path, NULL, FALSE);
 516       gtk_tree_path_free(path);
 517     }
 518 #endif //0
 519 }
 520
 521 void tree_v_get_cursor(EventViewerData *event_viewer_data)
 522 {
 523   GtkTreePath *path;
 524   gint *indices;
 525
 526   g_debug("get cursor cb");
 527
 528
 529 #if 0
 530   gtk_tree_view_get_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
 531       &path, NULL);
 532   indices = gtk_tree_path_get_indices(path);
 533
 534   if(indices != NULL)
 535       event_viewer_data->currently_selected_event = indices[0];
 536     else
 537       event_viewer_data->currently_selected_event = -1;
 538
 539   gtk_tree_path_free(path);
 540 #endif //0
 541 }
 542
 543
 544
 545 void tree_v_move_cursor_cb (GtkWidget *widget,
 546                             GtkMovementStep arg1,
 547                             gint arg2,
 548                             gpointer data)
 549 {
 550   GtkTreePath *path; // = gtk_tree_path_new();
 551   gint *indices;
 552   gdouble value;
 553   EventViewerData *event_viewer_data = (EventViewerData*)data;
 554
 555   g_debug("move cursor cb");
 556   gtk_tree_view_get_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
 557                             &path, NULL);
 558   if(path == NULL)
 559   {
 560     /* No prior cursor, put it at beginning of page
 561      * and let the execution do */
 562     path = gtk_tree_path_new_from_indices(0, -1);
 563     gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
 564                                 path, NULL, FALSE);
 565   }
 566
 567   indices = gtk_tree_path_get_indices(path);
 568
 569   value = gtk_adjustment_get_value(event_viewer_data->vadjust_c);
 570
 571   g_debug("tree view move cursor : arg1 is %u and arg2 is %d",
 572       (guint)arg1, arg2);
 573
 574 #if 0
 575   if(arg1 == GTK_MOVEMENT_DISPLAY_LINES)
 576   {
 577     /* Move one line */
 578     if(arg2 == 1)
 579     {
 580       /* move one line down */
 581       if(indices[0]) // Do we need an empty field here (before first)?
 582       {
 583         if(value + event_viewer_data->num_visible_events <=
 584             event_viewer_data->number_of_events -1)
 585         {
 586           event_viewer_data->currently_selected_event += 1;
 587           //      gtk_adjustment_set_value(event_viewer_data->vadjust_c, value+1);
 588           //gtk_tree_path_free(path);
 589           //path = gtk_tree_path_new_from_indices(event_viewer_data->num_visible_events-1, -1);
 590           //gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v), path, NULL, FALSE);
 591           g_signal_stop_emission_by_name(G_OBJECT(widget), "move-cursor");
 592         }
 593       }
 594     } else {
 595       /* Move one line up */
 596       if(indices[0] == 0)
 597       {
 598         if(value - 1 >= 0 )
 599         {
 600           event_viewer_data->currently_selected_event -= 1;
 601           //      gtk_adjustment_set_value(event_viewer_data->vadjust_c, value-1);
 602           //gtk_tree_path_free(path);
 603           //path = gtk_tree_path_new_from_indices(0, -1);
 604           //gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v), path, NULL, FALSE);
 605           g_signal_stop_emission_by_name(G_OBJECT(widget), "move-cursor");
 606         }
 607       }
 608     }
 609   }
 610
 611   if(arg1 == GTK_MOVEMENT_PAGES)
 612   {
 613     /* Move one page */
 614     if(arg2 == 1)
 615     {
 616       if(event_viewer_data->num_visible_events == 1)
 617         value += 1 ;
 618       /* move one page down */
 619       if(value + event_viewer_data->num_visible_events-1 <=
 620                       event_viewer_data->number_of_events )
 621       {
 622         event_viewer_data->currently_selected_event +=
 623                                   event_viewer_data->num_visible_events-1;
 624         //        gtk_adjustment_set_value(event_viewer_data->vadjust_c,
 625         //               value+(event_viewer_data->num_visible_events-1));
 626         //gtk_tree_path_free(path);
 627         //path = gtk_tree_path_new_from_indices(0, -1);
 628         //gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v), path, NULL, FALSE);
 629         g_signal_stop_emission_by_name(G_OBJECT(widget), "move-cursor");
 630       }
 631     } else {
 632       /* Move one page up */
 633       if(event_viewer_data->num_visible_events == 1)
 634         value -= 1 ;
 635
 636       if(indices[0] < event_viewer_data->num_visible_events - 2 )
 637       {
 638         if(value - (event_viewer_data->num_visible_events-1) >= 0)
 639         {
 640           event_viewer_data->currently_selected_event -=
 641                           event_viewer_data->num_visible_events-1;
 642
 643           //      gtk_adjustment_set_value(event_viewer_data->vadjust_c,
 644           //             value-(event_viewer_data->num_visible_events-1));
 645           //gtk_tree_path_free(path);
 646           //path = gtk_tree_path_new_from_indices(0, -1);
 647           //gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v), path, NULL, FALSE);
 648           g_signal_stop_emission_by_name(G_OBJECT(widget), "move-cursor");
 649
 650         } else {
 651           /* Go to first Event */
 652           event_viewer_data->currently_selected_event == 0 ;
 653           //      gtk_adjustment_set_value(event_viewer_data->vadjust_c,
 654           //             0);
 655           //gtk_tree_path_free(path);
 656           //path = gtk_tree_path_new_from_indices(0, -1);
 657           //gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v), path, NULL, FALSE);
 658           g_signal_stop_emission_by_name(G_OBJECT(widget), "move-cursor");
 659
 660         }
 661       }
 662     }
 663   }
 664
 665   if(arg1 == GTK_MOVEMENT_BUFFER_ENDS)
 666   {
 667     /* Move to the ends of the buffer */
 668     if(arg2 == 1)
 669     {
 670       /* move end of buffer */
 671       event_viewer_data->currently_selected_event =
 672                             event_viewer_data->number_of_events-1 ;
 673       //    gtk_adjustment_set_value(event_viewer_data->vadjust_c,
 674       //           event_viewer_data->number_of_events -
 675       //           event_viewer_data->num_visible_events);
 676       //gtk_tree_path_free(path);
 677       //path = gtk_tree_path_new_from_indices(event_viewer_data->num_visible_events-1, -1);
 678       //gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v), path, NULL, FALSE);
 679       g_signal_stop_emission_by_name(G_OBJECT(widget), "move-cursor");
 680     } else {
 681       /* Move beginning of buffer */
 682       event_viewer_data->currently_selected_event = 0 ;
 683       //    gtk_adjustment_set_value(event_viewer_data->vadjust_c, 0);
 684         //gtk_tree_path_free(path);
 685         //path = gtk_tree_path_new_from_indices(0, -1);
 686         //gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v), path, NULL, FALSE);
 687       g_signal_stop_emission_by_name(G_OBJECT(widget), "move-cursor");
 688     }
 689   }
 690 #endif //0
 691   gtk_tree_path_free(path);
 692 }
 693
 694 void tree_v_cursor_changed_cb (GtkWidget *widget, gpointer data)
 695 {
 696   EventViewerData *event_viewer_data = (EventViewerData*) data;
 697   Tab *tab = event_viewer_data->tab;
 698   GtkTreeIter iter;
 699   GtkTreeModel* model = GTK_TREE_MODEL(event_viewer_data->store_m);
 700   GtkTreePath *path;
 701   LttvTracesetContextPosition *pos;
 702
 703   g_debug("cursor changed cb");
 704
 705 #if 0
 706   /* On cursor change, modify the currently selected event by calling
 707    * the right API function */
 708   tree_v_get_cursor(event_viewer_data);
 709
 710   gtk_tree_view_get_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
 711       &path, NULL);
 712   if(gtk_tree_model_get_iter(model,&iter,path)){
 713     gtk_tree_model_get(model, &iter, POSITION_COLUMN, &pos, -1);
 714
 715     lttvwindow_report_current_position(tab, pos);
 716   }else{
 717     g_warning("Can not get iter\n");
 718   }
 719 #endif //0
 720 }
 721
 722
 723 static void tree_selection_changed_cb (GtkTreeSelection *selection,
 724     gpointer data)
 725 {
 726   g_debug("tree sel changed cb");
 727   EventViewerData *event_viewer_data = (EventViewerData*) data;
 728 #if 0
 729     /* Set the cursor to currently selected event */
 730   GtkTreeModel* model = GTK_TREE_MODEL(event_viewer_data->store_m);
 731   GtkTreeIter iter;
 732   LttvTracesetContextPosition *pos;
 733   guint i;
 734   GtkTreePath *tree_path;
 735
 736   for(i=0;i<event_viewer_data->num_visible_events;i++) {
 737     tree_path = gtk_tree_path_new_from_indices(
 738                 i,
 739                -1);
 740     if(gtk_tree_model_get_iter(model,&iter,tree_path)){
 741       gtk_tree_model_get(model, &iter, POSITION_COLUMN, &pos, -1);
 742
 743       if(lttv_traceset_context_pos_pos_compare(pos,
 744             event_viewer_data->currently_selected_position) == 0) {
 745         /* Match! */
 746             gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
 747                 tree_path, NULL, FALSE);
 748         break;
 749       }
 750
 751     }else{
 752       g_warning("Can not get iter\n");
 753     }
 754    gtk_tree_path_free(tree_path);
 755   }
 756 #endif //0
 757 }
 758
 759
 760
 761 /* This callback may be recalled after a step up/down, but we don't want to lose
 762  * the exact position : what we do is that we only set the value if it has
 763  * changed : a step up/down that doesn't change the time value of the first
 764  * event won't trigger a scrollbar change. */
 765
 766 void v_scroll_cb (GtkAdjustment *adjustment, gpointer data)
 767 {
 768   EventViewerData *event_viewer_data = (EventViewerData*)data;
 769   LttvTracesetStats *tss =
 770     lttvwindow_get_traceset_stats(event_viewer_data->tab);
 771   LttvTracesetContext *tsc = (LttvTracesetContext*)tss;
 772   g_debug("SCROLL begin");
 773   g_debug("SCROLL values : %g , %g, %g",
 774       adjustment->value, event_viewer_data->previous_value,
 775       (adjustment->value - event_viewer_data->previous_value));
 776
 777   LttTime new_time_off = ltt_time_from_double(adjustment->value);
 778   LttTime old_time_off = ltt_time_from_double(event_viewer_data->previous_value);
 779   g_debug("SCROLL time values %lu.%lu, %lu.%lu", new_time_off.tv_sec,
 780       new_time_off.tv_nsec, old_time_off.tv_sec, old_time_off.tv_nsec);
 781   /* If same value : nothing to update */
 782   if(ltt_time_compare(new_time_off, old_time_off) == 0)
 783     return;
 784
 785   //LttTime old_time = event_viewer_data->first_event;
 786
 787   get_events(adjustment->value, event_viewer_data);
 788 #if 0
 789   LttTime time = ltt_time_sub(event_viewer_data->first_event,
 790                               tsc->time_span.start_time);
 791   double value = ltt_time_to_double(time);
 792   gtk_adjustment_set_value(event_viewer_data->vadjust_c, value);
 793
 794   if(event_viewer_data->currently_selected_event != -1) {
 795
 796       tree_path = gtk_tree_path_new_from_indices(
 797              event_viewer_data->currently_selected_event,
 798              -1);
 799
 800       //      gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v), tree_path,
 801       //             NULL, FALSE);
 802       gtk_tree_path_free(tree_path);
 803   }
 804 #endif //0
 805   g_debug("SCROLL end");
 806 }
 807
 808 static __inline gint get_cell_height(GtkTreeView *TreeView)
 809 {
 810   gint height;
 811   GtkTreeViewColumn *column = gtk_tree_view_get_column(TreeView, 0);
 812
 813   gtk_tree_view_column_cell_get_size(column, NULL, NULL, NULL, NULL, &height);
 814
 815   return height;
 816 }
 817
 818 void tree_v_size_allocate_cb (GtkWidget *widget, GtkAllocation *alloc, gpointer data)
 819 {
 820   EventViewerData *event_viewer_data = (EventViewerData*)data;
 821   gint cell_height = get_cell_height(GTK_TREE_VIEW(event_viewer_data->tree_v));
 822   gint last_num_visible_events = event_viewer_data->num_visible_events;
 823   gdouble exact_num_visible;
 824
 825   exact_num_visible = ( alloc->height -
 826           event_viewer_data->header_height )
 827             / (double)cell_height ;
 828
 829   event_viewer_data->num_visible_events = ceil(exact_num_visible) ;
 830
 831 /*
 832   event_viewer_data->vadjust_c->page_increment =
 833     floor(exact_num_visible);
 834   event_viewer_data->vadjust_c->page_size =
 835     floor(exact_num_visible);
 836 */
 837
 838   g_debug("size allocate : last_num_visible_events : %d,\
 839            num_visible_events : %d",
 840            last_num_visible_events,
 841            event_viewer_data->num_visible_events);
 842   if(event_viewer_data->num_visible_events != last_num_visible_events)
 843     {
 844       get_events(event_viewer_data->vadjust_c->value, event_viewer_data);
 845     }
 846
 847
 848 }
 849
 850 void tree_v_size_request_cb (GtkWidget *widget, GtkRequisition *requisition, gpointer data)
 851 {
 852   gint h;
 853   EventViewerData *event_viewer_data = (EventViewerData*)data;
 854   gint cell_height = get_cell_height(GTK_TREE_VIEW(event_viewer_data->tree_v));
 855
 856   h = cell_height + event_viewer_data->header_height;
 857   requisition->height = h;
 858
 859 }
 860
 861 #if 0
 862 gboolean show_event_detail(void * hook_data, void * call_data)
 863 {
 864   EventViewerData *event_viewer_data = (EventViewerData*) hook_data;
 865   LttvTracesetContext * tsc = lttvwindow_get_traceset_context(event_viewer_data->tab);
 866
 867   if(event_viewer_data->event_fields_queue_tmp->length == 0 &&
 868      event_viewer_data->event_fields_queue->length == 0){
 869     event_viewer_data->shown = FALSE;
 870     return FALSE;
 871   }
 872
 873   if(event_viewer_data->shown == FALSE){
 874     event_viewer_data->shown = TRUE;
 875     update_raw_data_array(event_viewer_data,
 876         event_viewer_data->event_fields_queue_tmp->length);
 877
 878     get_data(event_viewer_data->vadjust_c->value,
 879       event_viewer_data->num_visible_events,
 880       event_viewer_data);
 881
 882     remove_context_hooks(event_viewer_data,tsc);
 883   }
 884
 885   return FALSE;
 886 }
 887 #endif //0
 888
 889
 890
 891
 892
 893
 894
 895 static void get_events(double new_value, EventViewerData *event_viewer_data)
 896 {
 897   GtkTreePath *tree_path;
 898   LttvTracesetStats *tss =
 899     lttvwindow_get_traceset_stats(event_viewer_data->tab);
 900   LttvTracesetContext *tsc = (LttvTracesetContext*)tss;
 901   guint i;
 902   gboolean seek_by_time;
 903
 904   double value = new_value - event_viewer_data->previous_value;
 905
 906   /* See where we have to scroll... */
 907   ScrollDirection direction;
 908   gint relative_position;
 909
 910   if(value < 0.0) {
 911     if(value >= -1.0) direction = SCROLL_STEP_UP;
 912     else {
 913       if(value >= -2.0) direction = SCROLL_PAGE_UP;
 914       else direction = SCROLL_JUMP;
 915     }
 916   } else if(value > 0.0) {
 917     if(value <= 1.0) direction = SCROLL_STEP_DOWN;
 918     else {
 919       if(value <= 2.0) direction = SCROLL_PAGE_DOWN;
 920       else direction = SCROLL_JUMP;
 921     }
 922   } else direction = SCROLL_NONE; /* 0.0 */
 923
 924
 925   switch(direction) {
 926   case SCROLL_STEP_UP:
 927     g_debug("get_events : SCROLL_STEP_UP");
 928     relative_position = -1;
 929     seek_by_time = 0;
 930     break;
 931   case SCROLL_STEP_DOWN:
 932     g_debug("get_events : SCROLL_STEP_DOWN");
 933     relative_position = 1;
 934     seek_by_time = 0;
 935     break;
 936   case SCROLL_PAGE_UP:
 937     g_debug("get_events : SCROLL_PAGE_UP");
 938     relative_position = -(event_viewer_data->num_visible_events);
 939     seek_by_time = 0;
 940     break;
 941   case SCROLL_PAGE_DOWN:
 942     g_debug("get_events : SCROLL_PAGE_DOWN");
 943     relative_position = event_viewer_data->num_visible_events;
 944     seek_by_time = 0;
 945     break;
 946   case SCROLL_JUMP:
 947     g_debug("get_events : SCROLL_JUMP");
 948     seek_by_time = 1;
 949     break;
 950   case SCROLL_NONE:
 951     g_debug("get_events : SCROLL_NONE");
 952     relative_position = 0;
 953     seek_by_time = 0;
 954     break;
 955   }
 956
 957   LttTime time = ltt_time_from_double(new_value);
 958   time = ltt_time_add(tsc->time_span.start_time, time);
 959
 960   if(!seek_by_time) {
 961
 962     LttvTracesetContextPosition *pos =
 963         lttv_traceset_context_position_new(tsc);
 964
 965   /* Remember the beginning position */
 966     if(event_viewer_data->pos->len > 0) {
 967       LttvTracesetContextPosition *first_pos =
 968         (LttvTracesetContextPosition*)g_ptr_array_index(event_viewer_data->pos,
 969                                                         0);
 970       lttv_traceset_context_position_copy(pos, first_pos);
 971       g_assert(lttv_process_traceset_seek_position(tsc, pos) == 0);
 972     } else {
 973       /* There is nothing in the list : simply seek to the time value. */
 974       lttv_state_traceset_seek_time_closest((LttvTracesetState*)tsc,
 975           time);
 976       lttv_process_traceset_middle(tsc, time, G_MAXUINT,
 977                                    NULL);
 978     }
 979
 980   /* Note that, as we mess with the tsc position, this function CANNOT be called
 981    * from a hook inside the lttv_process_traceset_middle. */
 982   /* As the lttvwindow API keeps a sync_position inside the tsc to go back at
 983    * the right spot after being interrupted, it's ok to change the tsc position,
 984    * as long as we do not touch the sync_position. */
 985
 986   /* Get the beginning position of the read (with seek backward or seek forward)
 987    */
 988     if(relative_position > 0) {
 989       guint count;
 990       count = lttv_process_traceset_seek_n_forward(tsc, relative_position,
 991           event_viewer_data->main_win_filter);
 992     } else if(relative_position < 0) {
 993       guint count;
 994
 995       /* Get an idea of currently shown event dispersion */
 996       LttTime first_event_time =
 997         lttv_traceset_context_position_get_time(event_viewer_data->first_event);
 998       LttTime last_event_time =
 999         lttv_traceset_context_position_get_time(event_viewer_data->last_event);
1000       LttTime time_diff = ltt_time_sub(last_event_time, first_event_time);
1001       if(ltt_time_compare(time_diff, ltt_time_zero) == 0)
1002         time_diff = seek_back_default_offset;
1003       count = lttv_process_traceset_seek_n_backward(tsc, abs(relative_position),
1004           time_diff,
1005           (seek_time_fct)lttv_state_traceset_seek_time_closest,
1006           event_viewer_data->main_win_filter);
1007     } /* else 0 : do nothing : we are already at the beginning position */
1008
1009     lttv_traceset_context_position_destroy(pos);
1010
1011     /* Save the first event position */
1012     lttv_traceset_context_position_save(tsc, event_viewer_data->first_event);
1013
1014     time = lttv_traceset_context_position_get_time(
1015                                             event_viewer_data->first_event);
1016     LttTime time_val = ltt_time_sub(time,
1017                         tsc->time_span.start_time);
1018     event_viewer_data->previous_value = ltt_time_to_double(time_val);
1019
1020     lttv_state_traceset_seek_time_closest((LttvTracesetState*)tsc, time);
1021     lttv_process_traceset_middle(tsc, ltt_time_infinite, G_MAXUINT,
1022                                  event_viewer_data->first_event);
1023
1024   } else {
1025     /* Seek by time */
1026     lttv_state_traceset_seek_time_closest((LttvTracesetState*)tsc,
1027           time);
1028     lttv_process_traceset_middle(tsc, time, G_MAXUINT,
1029                                  NULL);
1030     LttTime time_val = ltt_time_sub(time,
1031                         tsc->time_span.start_time);
1032     event_viewer_data->previous_value = ltt_time_to_double(time_val);
1033     lttv_traceset_context_position_save(tsc, event_viewer_data->first_event);
1034   }
1035
1036   /* Clear the model (don't forget to free the TCS positions!) */
1037   gtk_list_store_clear(event_viewer_data->store_m);
1038   for(i=0;i<event_viewer_data->pos->len;i++) {
1039     LttvTracesetContextPosition *cur_pos =
1040       (LttvTracesetContextPosition*)g_ptr_array_index(event_viewer_data->pos,
1041                                                       i);
1042     lttv_traceset_context_position_destroy(cur_pos);
1043   }
1044   g_ptr_array_set_size(event_viewer_data->pos, 0);
1045
1046
1047   /* Mathieu :
1048    * I make the choice not to use the mainwindow lttvwindow API here : it will
1049    * be faster to read the events ourself from lttv_process_traceset_middle, as
1050    * we are already at the right read position. It would be costier to use the
1051    * seek time closest for nothing, as we only have few events to read.
1052    */
1053   /* FIXME : use seek time closest and middle to have a good state. */
1054
1055   lttv_process_traceset_begin(tsc,
1056       NULL, NULL, NULL, event_viewer_data->event_hooks, NULL);
1057
1058   lttv_process_traceset_middle(tsc, ltt_time_infinite, G_MAXUINT, NULL);
1059
1060   lttv_process_traceset_end(tsc,
1061       NULL, NULL, NULL, event_viewer_data->event_hooks, NULL);
1062
1063   /* Get the end position */
1064   if(event_viewer_data->pos->len > 0) {
1065     LttvTracesetContextPosition *cur_pos =
1066       (LttvTracesetContextPosition*)g_ptr_array_index(event_viewer_data->pos,
1067                                                event_viewer_data->pos->len - 1);
1068     lttv_traceset_context_position_copy(event_viewer_data->last_event,
1069         cur_pos);
1070   } else
1071     lttv_traceset_context_position_save(tsc, event_viewer_data->last_event);
1072
1073   gtk_adjustment_set_value(event_viewer_data->vadjust_c,
1074       event_viewer_data->previous_value);
1075
1076   //g_signal_emit_by_name(G_OBJECT (event_viewer_data->select_c),
1077   //    "changed");
1078
1079
1080   return;
1081 }
1082
1083
1084
1085 int event_hook(void *hook_data, void *call_data)
1086 {
1087   EventViewerData *event_viewer_data = (EventViewerData*)hook_data;
1088   LttvTracefileContext *tfc = (LttvTracefileContext*)call_data;
1089   LttEvent *e = ltt_tracefile_get_event(tfc->tf);
1090
1091   LttvFilter *filter = event_viewer_data->main_win_filter;
1092   if(filter != NULL && filter->head != NULL)
1093     if(!lttv_filter_tree_parse(filter->head,e,tfc->tf,
1094           tfc->t_context->t,tfc))
1095       return FALSE;
1096
1097   LttFacility *facility = ltt_event_facility(e);
1098   LttEventType *event_type = ltt_event_eventtype(e);
1099   LttField *field = ltt_event_field(e);
1100   LttTime time = ltt_event_time(e);
1101
1102   guint cpu = ltt_tracefile_num(tfc->tf);
1103   LttvTraceState *ts = (LttvTraceState*)tfc->t_context;
1104   LttvProcessState *process = ts->running_process[cpu];
1105
1106   GtkTreeIter iter;
1107
1108   GString *desc = g_string_new("");
1109
1110   LttvTracesetContextPosition *pos =
1111     lttv_traceset_context_position_new(tfc->t_context->ts_context);
1112
1113   lttv_traceset_context_position_save(tfc->t_context->ts_context, pos);
1114
1115   if(field)
1116     lttv_print_field(e, field, desc, TRUE);
1117
1118   g_info("field : %s", desc->str);
1119
1120   gtk_list_store_append (event_viewer_data->store_m, &iter);
1121   gtk_list_store_set (event_viewer_data->store_m, &iter,
1122       TRACE_NAME_COLUMN, g_quark_to_string(ltt_trace_name(tfc->t_context->t)),
1123       TRACEFILE_NAME_COLUMN, g_quark_to_string(ltt_tracefile_name(tfc->tf)),
1124       CPUID_COLUMN, cpu,
1125       FACILITY_COLUMN, g_quark_to_string(ltt_facility_name(facility)),
1126       EVENT_COLUMN, g_quark_to_string(ltt_eventtype_name(event_type)),
1127       TIME_S_COLUMN, time.tv_sec,
1128       TIME_NS_COLUMN, time.tv_nsec,
1129       PID_COLUMN, process->pid,
1130       EVENT_DESCR_COLUMN, desc->str,
1131       POSITION_COLUMN, pos,
1132       -1);
1133
1134   g_ptr_array_add(event_viewer_data->pos, pos);
1135
1136   g_string_free(desc, TRUE);
1137
1138   if(lttv_traceset_context_pos_pos_compare(pos,
1139         event_viewer_data->currently_selected_position) == 0) {
1140     GtkTreePath *path = gtk_tree_path_new_from_indices(
1141                         event_viewer_data->pos->len - 1, -1);
1142     gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
1143                            path, NULL, FALSE);
1144     gtk_tree_path_free(path);
1145   }
1146
1147   if(event_viewer_data->pos->len >= event_viewer_data->num_visible_events)
1148     return TRUE;
1149   else
1150     return FALSE;
1151 }
1152
1153
1154
1155 static void event_update_selection(EventViewerData *event_viewer_data)
1156 {
1157   guint i;
1158   GPtrArray *positions = event_viewer_data->pos;
1159
1160   for(i=0;i<positions->len;i++) {
1161     LttvTracesetContextPosition *cur_pos =
1162       (LttvTracesetContextPosition*)g_ptr_array_index(positions, i);
1163     if(lttv_traceset_context_pos_pos_compare(cur_pos,
1164           event_viewer_data->currently_selected_position) == 0) {
1165       GtkTreePath *path = gtk_tree_path_new_from_indices(i, -1);
1166       gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
1167                              path, NULL, FALSE);
1168       gtk_tree_path_free(path);
1169     }
1170   }
1171 }
1172
1173
1174 gboolean update_current_time(void * hook_data, void * call_data)
1175 {
1176   EventViewerData *event_viewer_data = (EventViewerData*) hook_data;
1177   const LttTime * current_time = (LttTime*)call_data;
1178   LttvTracesetContext * tsc =
1179         lttvwindow_get_traceset_context(event_viewer_data->tab);
1180   GtkTreePath *path;
1181
1182   /* If the currently selected event time != current time, set the first event
1183    * with this time as currently selected. */
1184   LttTime pos_time = lttv_traceset_context_position_get_time(
1185       event_viewer_data->currently_selected_position);
1186   if(ltt_time_compare(pos_time, *current_time) != 0) {
1187
1188     lttv_process_traceset_seek_time(tsc, *current_time);
1189     lttv_traceset_context_position_save(tsc,
1190         event_viewer_data->currently_selected_position);
1191     pos_time = lttv_traceset_context_position_get_time(
1192         event_viewer_data->currently_selected_position);
1193   }
1194
1195   LttTime time = ltt_time_sub(pos_time, tsc->time_span.start_time);
1196   double new_value = ltt_time_to_double(time);
1197
1198   /* Change the viewed area if does not match */
1199   if(lttv_traceset_context_pos_pos_compare(
1200         event_viewer_data->currently_selected_position,
1201         event_viewer_data->first_event) < 0
1202     ||
1203      lttv_traceset_context_pos_pos_compare(
1204         event_viewer_data->currently_selected_position,
1205         event_viewer_data->last_event) > 0) {
1206     gtk_adjustment_set_value(event_viewer_data->vadjust_c, new_value);
1207   } else {
1208       /* Simply update the current time : it is in the list */
1209       event_update_selection(event_viewer_data);
1210   }
1211
1212   return FALSE;
1213 }
1214
1215 gboolean update_current_position(void * hook_data, void * call_data)
1216 {
1217   EventViewerData *event_viewer_data = (EventViewerData*) hook_data;
1218   const LttvTracesetContextPosition *current_pos =
1219     (LttvTracesetContextPosition*)call_data;
1220   LttvTracesetContext * tsc =
1221         lttvwindow_get_traceset_context(event_viewer_data->tab);
1222
1223   if(lttv_traceset_context_pos_pos_compare(
1224         event_viewer_data->currently_selected_position, current_pos) != 0) {
1225     lttv_traceset_context_position_copy(
1226         event_viewer_data->currently_selected_position, current_pos);
1227
1228
1229     /* Change the viewed area if does not match */
1230     if(lttv_traceset_context_pos_pos_compare(
1231           event_viewer_data->currently_selected_position,
1232           event_viewer_data->first_event) < 0
1233       ||
1234        lttv_traceset_context_pos_pos_compare(
1235           event_viewer_data->currently_selected_position,
1236           event_viewer_data->last_event) > 0) {
1237       LttTime time = lttv_traceset_context_position_get_time(current_pos);
1238       time = ltt_time_sub(time, tsc->time_span.start_time);
1239       double new_value = ltt_time_to_double(time);
1240       gtk_adjustment_set_value(event_viewer_data->vadjust_c, new_value);
1241     } else {
1242       /* Simply update the current time : it is in the list */
1243       event_update_selection(event_viewer_data);
1244     }
1245
1246   }
1247
1248
1249   return FALSE;
1250 }
1251
1252
1253
1254 gboolean traceset_changed(void * hook_data, void * call_data)
1255 {
1256   EventViewerData *event_viewer_data = (EventViewerData*) hook_data;
1257   LttvTracesetContext * tsc =
1258         lttvwindow_get_traceset_context(event_viewer_data->tab);
1259   TimeInterval time_span = tsc->time_span;
1260
1261   LttTime end;
1262   gtk_list_store_clear(event_viewer_data->store_m);
1263   g_ptr_array_set_size(event_viewer_data->pos, 0);
1264
1265   end = ltt_time_sub(time_span.end_time, time_span.start_time);
1266   event_viewer_data->vadjust_c->upper = ltt_time_to_double(end);
1267
1268   /* Reset the positions */
1269   lttv_traceset_context_position_destroy(
1270       event_viewer_data->currently_selected_position);
1271   lttv_traceset_context_position_destroy(
1272       event_viewer_data->first_event);
1273   lttv_traceset_context_position_destroy(
1274       event_viewer_data->last_event);
1275
1276   event_viewer_data->currently_selected_position =
1277     lttv_traceset_context_position_new(tsc);
1278   event_viewer_data->first_event =
1279     lttv_traceset_context_position_new(tsc);
1280   event_viewer_data->last_event =
1281     lttv_traceset_context_position_new(tsc);
1282
1283   get_events(event_viewer_data->vadjust_c->value, event_viewer_data);
1284   //  event_viewer_data->vadjust_c->value = 0;
1285
1286   return FALSE;
1287 }
1288
1289 gboolean filter_changed(void * hook_data, void * call_data)
1290 {
1291   EventViewerData *event_viewer_data = (EventViewerData*) hook_data;
1292   LttvTracesetContext * tsc =
1293         lttvwindow_get_traceset_context(event_viewer_data->tab);
1294
1295   event_viewer_data->main_win_filter =
1296     (LttvFilter*)call_data;
1297   get_events(event_viewer_data->vadjust_c->value, event_viewer_data);
1298
1299   return FALSE;
1300 }
1301
1302
1303
1304
1305
1306 void gui_events_free(EventViewerData *event_viewer_data)
1307 {
1308   Tab *tab = event_viewer_data->tab;
1309   guint i;
1310
1311   if(event_viewer_data){
1312     lttv_hooks_remove(event_viewer_data->event_hooks,event_hook);
1313     lttv_hooks_destroy(event_viewer_data->event_hooks);
1314
1315     for(i=0;i<event_viewer_data->pos->len;i++) {
1316       LttvTracesetContextPosition *cur_pos =
1317         (LttvTracesetContextPosition*)g_ptr_array_index(event_viewer_data->pos,
1318                                                         i);
1319       lttv_traceset_context_position_destroy(cur_pos);
1320     }
1321     lttv_traceset_context_position_destroy(
1322         event_viewer_data->currently_selected_position);
1323     lttv_traceset_context_position_destroy(
1324         event_viewer_data->first_event);
1325     lttv_traceset_context_position_destroy(
1326         event_viewer_data->last_event);
1327     g_ptr_array_free(event_viewer_data->pos, TRUE);
1328
1329     lttvwindow_unregister_current_time_notify(tab,
1330                         update_current_time, event_viewer_data);
1331     lttvwindow_unregister_current_position_notify(tab,
1332                         update_current_position, event_viewer_data);
1333     //lttvwindow_unregister_show_notify(tab,
1334     //                    show_event_detail, event_viewer_data);
1335     lttvwindow_unregister_traceset_notify(tab,
1336                         traceset_changed, event_viewer_data);
1337     lttvwindow_unregister_filter_notify(tab,
1338                         filter_changed, event_viewer_data);
1339
1340     g_event_viewer_data_list = g_slist_remove(g_event_viewer_data_list,
1341         event_viewer_data);
1342     g_free(event_viewer_data);
1343   }
1344 }
1345
1346
1347
1348 void gui_events_destructor(EventViewerData *event_viewer_data)
1349 {
1350   /* May already been done by GTK window closing */
1351   if(GTK_IS_WIDGET(event_viewer_data->hbox_v)){
1352     gtk_widget_destroy(event_viewer_data->hbox_v);
1353   }
1354 }
1355
1356
1357
1358 /**
1359  * plugin's init function
1360  *
1361  * This function initializes the Event Viewer functionnality through the
1362  * gtkTraceSet API.
1363  */
1364 static void init() {
1365
1366   lttvwindow_register_constructor("guievents",
1367                                   "/",
1368                                   "Insert Event Viewer",
1369                                   hGuiEventsInsert_xpm,
1370                                   "Insert Event Viewer",
1371                                   h_gui_events);
1372 }
1373
1374 void event_destroy_walk(gpointer data, gpointer user_data)
1375 {
1376   gui_events_destructor((EventViewerData*)data);
1377 }
1378
1379 /**
1380  * plugin's destroy function
1381  *
1382  * This function releases the memory reserved by the module and unregisters
1383  * everything that has been registered in the gtkTraceSet API.
1384  */
1385 static void destroy() {
1386
1387   g_slist_foreach(g_event_viewer_data_list, event_destroy_walk, NULL );
1388   g_slist_free(g_event_viewer_data_list);
1389
1390   lttvwindow_unregister_constructor(h_gui_events);
1391
1392 }
1393
1394
1395
1396
1397 LTTV_MODULE("guievents", "Detailed events view", \
1398     "Graphical module to display a detailed event list", \
1399             init, destroy, "lttvwindow", "print")