tags/lttv-0.10.0-pre15-12082008/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 <gdk/gdkx.h>
  53 #include <string.h>
  54
  55 #include <ltt/ltt.h>
  56 #include <ltt/event.h>
  57 #include <ltt/trace.h>
  58 #include <lttv/module.h>
  59 #include <lttv/hook.h>
  60 #include <lttv/tracecontext.h>
  61 #include <lttv/state.h>
  62 #include <lttv/filter.h>
  63 #include <lttv/print.h>
  64 #include <lttvwindow/lttvwindow.h>
  65 #include <lttvwindow/lttvwindowtraces.h>
  66 #include <lttvwindow/lttv_plugin_tab.h>
  67 #include <lttvwindow/support.h>
  68 #include "lttv_plugin_evd.h"
  69
  70 #include "events.h"
  71 #include "hGuiEventsInsert.xpm"
  72
  73 #define g_info(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_INFO, format)
  74
  75 #ifndef g_debug
  76 #define g_debug(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, format)
  77 #endif
  78
  79 #define abs(a) (((a)<0)?(-a):(a))
  80 #define max(a,b) ((a)>(b)?(a):(b))
  81 #define min(a,b) ((a)<(b)?(a):(b))
  82
  83 /** Array containing instanced objects. Used when module is unloaded */
  84 static GSList *g_event_viewer_data_list = NULL ;
  85
  86 typedef enum _ScrollDirection{
  87   SCROLL_STEP_UP,
  88   SCROLL_STEP_DOWN,
  89   SCROLL_PAGE_UP,
  90   SCROLL_PAGE_DOWN,
  91   SCROLL_JUMP,
  92   SCROLL_NONE
  93 } ScrollDirection;
  94
  95 /** hook functions for update time interval, current time ... */
  96 gboolean update_current_time(void * hook_data, void * call_data);
  97 gboolean update_current_position(void * hook_data, void * call_data);
  98 //gboolean show_event_detail(void * hook_data, void * call_data);
  99 gboolean traceset_changed(void * hook_data, void * call_data);
 100 gboolean filter_changed(void * hook_data, void * call_data);
 101
 102 static void request_background_data(EventViewerData *event_viewer_data);
 103
 104 //! Event Viewer's constructor hook
 105 GtkWidget *h_gui_events(LttvPlugin *plugin);
 106 //! Event Viewer's constructor
 107 EventViewerData *gui_events(LttvPluginTab *ptab);
 108 //! Event Viewer's destructor
 109 void gui_events_destructor(gpointer data);
 110 void gui_events_free(gpointer data);
 111
 112 static gboolean
 113 header_size_allocate(GtkWidget *widget,
 114                         GtkAllocation *allocation,
 115                         gpointer user_data);
 116
 117 void tree_v_set_cursor(EventViewerData *event_viewer_data);
 118 void tree_v_get_cursor(EventViewerData *event_viewer_data);
 119
 120 /* Prototype for selection handler callback */
 121 static void tree_selection_changed_cb (GtkTreeSelection *selection,
 122     gpointer data);
 123 static void v_scroll_cb (GtkAdjustment *adjustment, gpointer data);
 124 static void tree_v_size_allocate_cb (GtkWidget *widget, GtkAllocation *alloc,
 125     gpointer data);
 126 static void tree_v_size_request_cb (GtkWidget *widget,
 127     GtkRequisition *requisition, gpointer data);
 128 static void tree_v_cursor_changed_cb (GtkWidget *widget, gpointer data);
 129 static void tree_v_move_cursor_cb (GtkWidget *widget, GtkMovementStep arg1,
 130     gint arg2, gpointer data);
 131 static void        filter_button      (GtkToolButton *toolbutton,
 132                                           gpointer       user_data);
 133 static gboolean tree_v_scroll_handler (GtkWidget *widget, GdkEventScroll *event, gpointer data);
 134 static gboolean key_handler(GtkWidget *widget, GdkEventKey *event,
 135     gpointer user_data);
 136
 137 static void get_events(double time, EventViewerData *event_viewer_data);
 138
 139 int event_hook(void *hook_data, void *call_data);
 140
 141 /* Enumeration of the columns */
 142 enum
 143 {
 144   TRACE_NAME_COLUMN,
 145   TRACEFILE_NAME_COLUMN,
 146   CPUID_COLUMN,
 147   EVENT_COLUMN,
 148   TIME_S_COLUMN,
 149   TIME_NS_COLUMN,
 150   PID_COLUMN,
 151   EVENT_DESCR_COLUMN,
 152   POSITION_COLUMN,
 153   N_COLUMNS
 154 };
 155
 156 /**
 157  * Event Viewer's constructor hook
 158  *
 159  * This constructor is given as a parameter to the menuitem and toolbar button
 160  * registration. It creates the list.
 161  * @param parent_window A pointer to the parent window.
 162  * @return The widget created.
 163  */
 164 GtkWidget *
 165 h_gui_events(LttvPlugin *plugin)
 166 {
 167   LttvPluginTab *ptab = LTTV_PLUGIN_TAB(plugin);
 168   EventViewerData* event_viewer_data = gui_events(ptab) ;
 169   if(event_viewer_data)
 170     return event_viewer_data->top_widget;
 171   else return NULL;
 172
 173 }
 174
 175 /**
 176  * Event Viewer's constructor
 177  *
 178  * This constructor is used to create EventViewerData data structure.
 179  * @return The Event viewer data created.
 180  */
 181 EventViewerData *
 182 gui_events(LttvPluginTab *ptab)
 183 {
 184   LttTime end;
 185   GtkTreeViewColumn *column;
 186   GtkCellRenderer *renderer;
 187   EventViewerData* event_viewer_data = g_new(EventViewerData,1);
 188   LttvPluginEVD *plugin_evd = g_object_new(LTTV_TYPE_PLUGIN_EVD, NULL);
 189   GtkTooltips *tooltips = gtk_tooltips_new();
 190   plugin_evd->evd = event_viewer_data;
 191   Tab *tab = ptab->tab;
 192   event_viewer_data->tab = tab;
 193   event_viewer_data->ptab = ptab;
 194   GtkWidget *tmp_toolbar_icon;
 195
 196   LttvTracesetContext * tsc =
 197         lttvwindow_get_traceset_context(event_viewer_data->tab);
 198
 199
 200   event_viewer_data->event_hooks = lttv_hooks_new();
 201   lttv_hooks_add(event_viewer_data->event_hooks,
 202                  event_hook,
 203                  event_viewer_data,
 204                  LTTV_PRIO_DEFAULT);
 205
 206   lttvwindow_register_current_time_notify(tab,
 207                 update_current_time,event_viewer_data);
 208   lttvwindow_register_current_position_notify(tab,
 209                 update_current_position,event_viewer_data);
 210   lttvwindow_register_traceset_notify(tab,
 211                 traceset_changed,event_viewer_data);
 212   lttvwindow_register_filter_notify(tab,
 213                 filter_changed, event_viewer_data);
 214   lttvwindow_register_redraw_notify(tab,
 215                 evd_redraw_notify, event_viewer_data);
 216
 217
 218   event_viewer_data->scroll_win = gtk_scrolled_window_new (NULL, NULL);
 219   gtk_widget_show (event_viewer_data->scroll_win);
 220   gtk_scrolled_window_set_policy(
 221       GTK_SCROLLED_WINDOW(event_viewer_data->scroll_win),
 222       GTK_POLICY_AUTOMATIC, GTK_POLICY_NEVER);
 223
 224   event_viewer_data->currently_selected_position =
 225     lttv_traceset_context_position_new(tsc);
 226   event_viewer_data->first_event =
 227     lttv_traceset_context_position_new(tsc);
 228   event_viewer_data->last_event =
 229     lttv_traceset_context_position_new(tsc);
 230
 231   event_viewer_data->main_win_filter = lttvwindow_get_filter(tab);
 232
 233   event_viewer_data->update_cursor = TRUE;
 234   event_viewer_data->report_position = TRUE;
 235
 236   event_viewer_data->last_tree_update_time = 0;
 237
 238   event_viewer_data->init_done = 0;
 239
 240   /* Create a model for storing the data list */
 241   event_viewer_data->store_m = gtk_list_store_new (
 242     N_COLUMNS,      /* Total number of columns     */
 243     G_TYPE_STRING,  /* Trace name                  */
 244     G_TYPE_STRING,  /* Tracefile name              */
 245     G_TYPE_UINT,    /* CPUID                       */
 246     G_TYPE_STRING,  /* Event                       */
 247     G_TYPE_UINT,    /* Time s                      */
 248     G_TYPE_UINT,    /* Time ns                     */
 249     G_TYPE_INT,     /* PID                         */
 250     G_TYPE_STRING,  /* Event's description         */
 251     G_TYPE_POINTER);/* Position (not shown)        */
 252
 253   event_viewer_data->pos = g_ptr_array_sized_new(10);
 254
 255   /* Create the viewer widget for the columned list */
 256   event_viewer_data->tree_v =
 257     gtk_tree_view_new_with_model (GTK_TREE_MODEL (event_viewer_data->store_m));
 258
 259   g_signal_connect (G_OBJECT (event_viewer_data->tree_v), "size-allocate",
 260         G_CALLBACK (tree_v_size_allocate_cb),
 261         event_viewer_data);
 262   g_signal_connect (G_OBJECT (event_viewer_data->tree_v), "size-request",
 263         G_CALLBACK (tree_v_size_request_cb),
 264         event_viewer_data);
 265
 266   g_signal_connect (G_OBJECT (event_viewer_data->tree_v), "cursor-changed",
 267         G_CALLBACK (tree_v_cursor_changed_cb),
 268         event_viewer_data);
 269
 270   g_signal_connect (G_OBJECT (event_viewer_data->tree_v), "move-cursor",
 271         G_CALLBACK (tree_v_move_cursor_cb),
 272         event_viewer_data);
 273
 274   g_signal_connect (G_OBJECT(event_viewer_data->tree_v), "key-press-event",
 275       G_CALLBACK(key_handler),
 276       event_viewer_data);
 277
 278   g_signal_connect (G_OBJECT(event_viewer_data->tree_v), "scroll-event",
 279       G_CALLBACK(tree_v_scroll_handler),
 280       event_viewer_data);
 281
 282
 283
 284   // Use on each column!
 285   //gtk_tree_view_column_set_sizing(event_viewer_data->tree_v,
 286   //GTK_TREE_VIEW_COLUMN_FIXED);
 287
 288   /* The view now holds a reference.  We can get rid of our own
 289    * reference */
 290   g_object_unref (G_OBJECT (event_viewer_data->store_m));
 291
 292
 293   /* Create a column, associating the "text" attribute of the
 294    * cell_renderer to the first column of the model */
 295   /* Columns alignment : 0.0 : Left    0.5 : Center   1.0 : Right */
 296   renderer = gtk_cell_renderer_text_new ();
 297   column = gtk_tree_view_column_new_with_attributes ("Trace",
 298                  renderer,
 299                  "text", TRACE_NAME_COLUMN,
 300                  NULL);
 301   gtk_tree_view_column_set_alignment (column, 0.0);
 302   gtk_tree_view_column_set_fixed_width (column, 120);
 303   gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->tree_v),
 304       column);
 305
 306   event_viewer_data->button = column->button;
 307
 308   g_signal_connect (G_OBJECT(event_viewer_data->button),
 309         "size-allocate",
 310         G_CALLBACK(header_size_allocate),
 311         (gpointer)event_viewer_data);
 312
 313
 314
 315   renderer = gtk_cell_renderer_text_new ();
 316   column = gtk_tree_view_column_new_with_attributes ("Tracefile",
 317                  renderer,
 318                  "text", TRACEFILE_NAME_COLUMN,
 319                  NULL);
 320   gtk_tree_view_column_set_alignment (column, 0.0);
 321   gtk_tree_view_column_set_fixed_width (column, 120);
 322   gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->tree_v),
 323       column);
 324
 325
 326   renderer = gtk_cell_renderer_text_new ();
 327   column = gtk_tree_view_column_new_with_attributes ("CPUID",
 328                  renderer,
 329                  "text", CPUID_COLUMN,
 330                  NULL);
 331   gtk_tree_view_column_set_alignment (column, 0.0);
 332   gtk_tree_view_column_set_fixed_width (column, 45);
 333   gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->tree_v),
 334       column);
 335
 336   renderer = gtk_cell_renderer_text_new ();
 337   column = gtk_tree_view_column_new_with_attributes ("Event",
 338                  renderer,
 339                  "text", EVENT_COLUMN,
 340                  NULL);
 341   gtk_tree_view_column_set_alignment (column, 0.0);
 342   gtk_tree_view_column_set_fixed_width (column, 120);
 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 ("Time (s)",
 348                  renderer,
 349                  "text", TIME_S_COLUMN,
 350                  NULL);
 351   gtk_tree_view_column_set_alignment (column, 1.0);
 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 ("Time (ns)",
 358                  renderer,
 359                  "text", TIME_NS_COLUMN,
 360                  NULL);
 361   gtk_tree_view_column_set_alignment (column, 1.0);
 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
 367   renderer = gtk_cell_renderer_text_new ();
 368   column = gtk_tree_view_column_new_with_attributes ("PID",
 369                  renderer,
 370                  "text", PID_COLUMN,
 371                  NULL);
 372   gtk_tree_view_column_set_alignment (column, 1.0);
 373   gtk_tree_view_column_set_fixed_width (column, 45);
 374   gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->tree_v),
 375       column);
 376
 377   renderer = gtk_cell_renderer_text_new ();
 378   column = gtk_tree_view_column_new_with_attributes ("Event Description",
 379                  renderer,
 380                  "text", EVENT_DESCR_COLUMN,
 381                  NULL);
 382   gtk_tree_view_column_set_alignment (column, 0.0);
 383   gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->tree_v),
 384       column);
 385
 386
 387   /* Setup the selection handler */
 388   event_viewer_data->select_c =
 389     gtk_tree_view_get_selection (GTK_TREE_VIEW (event_viewer_data->tree_v));
 390   gtk_tree_selection_set_mode (event_viewer_data->select_c,
 391       GTK_SELECTION_SINGLE);
 392   g_signal_connect (G_OBJECT (event_viewer_data->select_c), "changed",
 393         G_CALLBACK (tree_selection_changed_cb),
 394         event_viewer_data);
 395
 396   gtk_container_add (GTK_CONTAINER (event_viewer_data->scroll_win),
 397       event_viewer_data->tree_v);
 398
 399   event_viewer_data->hbox_v = gtk_hbox_new(0, 0);
 400   event_viewer_data->top_widget = event_viewer_data->hbox_v;
 401   plugin_evd->parent.top_widget = event_viewer_data->hbox_v;
 402
 403   event_viewer_data->toolbar = gtk_toolbar_new();
 404   gtk_toolbar_set_orientation(GTK_TOOLBAR(event_viewer_data->toolbar),
 405                               GTK_ORIENTATION_VERTICAL);
 406
 407   tmp_toolbar_icon = create_pixmap (main_window_get_widget(tab),
 408       "guifilter16x16.png");
 409   gtk_widget_show(tmp_toolbar_icon);
 410   event_viewer_data->button_filter = gtk_tool_button_new(tmp_toolbar_icon,
 411       "Filter");
 412   g_signal_connect (G_OBJECT(event_viewer_data->button_filter),
 413         "clicked",
 414         G_CALLBACK (filter_button),
 415         (gpointer)plugin_evd);
 416   gtk_tool_item_set_tooltip(GTK_TOOL_ITEM(event_viewer_data->button_filter),
 417       tooltips, "Open the filter window", NULL);
 418   gtk_toolbar_insert(GTK_TOOLBAR(event_viewer_data->toolbar),
 419       event_viewer_data->button_filter,
 420       0);
 421   gtk_toolbar_set_style(GTK_TOOLBAR(event_viewer_data->toolbar),
 422       GTK_TOOLBAR_ICONS);
 423   gtk_box_pack_start(GTK_BOX(event_viewer_data->hbox_v),
 424       event_viewer_data->toolbar, FALSE, FALSE, 0);
 425   event_viewer_data->filter = NULL;
 426
 427   gtk_box_pack_start(GTK_BOX(event_viewer_data->hbox_v),
 428       event_viewer_data->scroll_win, TRUE, TRUE, 0);
 429
 430   gtk_container_set_border_width(GTK_CONTAINER(event_viewer_data->hbox_v), 1);
 431
 432   /* Create vertical scrollbar and pack it */
 433   event_viewer_data->vscroll_vc = gtk_vscrollbar_new(NULL);
 434   gtk_range_set_update_policy (GTK_RANGE(event_viewer_data->vscroll_vc),
 435              GTK_UPDATE_CONTINUOUS);
 436              // Changed by MD : more user friendly :)
 437              //GTK_UPDATE_DISCONTINUOUS);
 438   gtk_box_pack_start(GTK_BOX(event_viewer_data->hbox_v),
 439       event_viewer_data->vscroll_vc, FALSE, TRUE, 0);
 440
 441   /* Get the vertical scrollbar's adjustment */
 442   event_viewer_data->vadjust_c =
 443     gtk_range_get_adjustment(GTK_RANGE(event_viewer_data->vscroll_vc));
 444   event_viewer_data->vtree_adjust_c = gtk_tree_view_get_vadjustment(
 445                     GTK_TREE_VIEW (event_viewer_data->tree_v));
 446
 447   g_signal_connect (G_OBJECT (event_viewer_data->vadjust_c), "value-changed",
 448         G_CALLBACK (v_scroll_cb),
 449         event_viewer_data);
 450   /* Set the upper bound to the last event number */
 451   event_viewer_data->previous_value = 0;
 452   event_viewer_data->vadjust_c->lower = 0.0;
 453     //event_viewer_data->vadjust_c->upper = event_viewer_data->number_of_events;
 454   LttTime time = lttvwindow_get_current_time(tab);
 455   time = ltt_time_sub(time, tsc->time_span.start_time);
 456   event_viewer_data->vadjust_c->value = ltt_time_to_double(time);
 457   event_viewer_data->vadjust_c->value = 0.0;
 458   event_viewer_data->vadjust_c->step_increment = 1.0;
 459   event_viewer_data->vadjust_c->page_increment = 2.0;
 460     //  event_viewer_data->vtree_adjust_c->upper;
 461   event_viewer_data->vadjust_c->page_size = 2.0;
 462   //    event_viewer_data->vtree_adjust_c->upper;
 463   /*  Raw event trace */
 464   gtk_widget_show(GTK_WIDGET(event_viewer_data->button_filter));
 465   gtk_widget_show(event_viewer_data->toolbar);
 466   gtk_widget_show(event_viewer_data->hbox_v);
 467   gtk_widget_show(event_viewer_data->tree_v);
 468   gtk_widget_show(event_viewer_data->vscroll_vc);
 469
 470   /* Add the object's information to the module's array */
 471   g_event_viewer_data_list = g_slist_append(g_event_viewer_data_list,
 472       plugin_evd);
 473
 474   event_viewer_data->num_visible_events = 1;
 475
 476   //get the life span of the traceset and set the upper of the scroll bar
 477
 478   TimeInterval time_span = tsc->time_span;
 479   end = ltt_time_sub(time_span.end_time, time_span.start_time);
 480
 481   event_viewer_data->vadjust_c->upper =
 482               ltt_time_to_double(end);
 483
 484   /* Set the Selected Event */
 485   //  tree_v_set_cursor(event_viewer_data);
 486
 487  // event_viewer_data->current_time_updated = FALSE;
 488  //
 489   g_object_set_data_full(
 490       G_OBJECT(event_viewer_data->hbox_v),
 491       "plugin_data",
 492       plugin_evd,
 493       (GDestroyNotify)gui_events_free);
 494
 495   g_object_set_data(
 496       G_OBJECT(event_viewer_data->hbox_v),
 497       "event_viewer_data",
 498       event_viewer_data);
 499
 500   event_viewer_data->background_info_waiting = 0;
 501
 502
 503   request_background_data(event_viewer_data);
 504
 505   return event_viewer_data;
 506 }
 507
 508
 509
 510 static gint background_ready(void *hook_data, void *call_data)
 511 {
 512   EventViewerData *event_viewer_data = (EventViewerData *)hook_data;
 513   LttvTrace *trace = (LttvTrace*)call_data;
 514
 515   event_viewer_data->background_info_waiting--;
 516
 517   if(event_viewer_data->background_info_waiting == 0) {
 518     g_message("event viewer : background computation data ready.");
 519
 520     evd_redraw_notify(event_viewer_data, NULL);
 521   }
 522
 523   return 0;
 524 }
 525
 526
 527 static void request_background_data(EventViewerData *event_viewer_data)
 528 {
 529   LttvTracesetContext * tsc =
 530         lttvwindow_get_traceset_context(event_viewer_data->tab);
 531   gint num_traces = lttv_traceset_number(tsc->ts);
 532   gint i;
 533   LttvTrace *trace;
 534   LttvTraceState *tstate;
 535
 536   LttvHooks *background_ready_hook =
 537     lttv_hooks_new();
 538   lttv_hooks_add(background_ready_hook, background_ready, event_viewer_data,
 539       LTTV_PRIO_DEFAULT);
 540   event_viewer_data->background_info_waiting = 0;
 541
 542   for(i=0;i<num_traces;i++) {
 543     trace = lttv_traceset_get(tsc->ts, i);
 544     tstate = LTTV_TRACE_STATE(tsc->traces[i]);
 545
 546     if(lttvwindowtraces_get_ready(g_quark_from_string("state"),trace)==FALSE
 547         && !tstate->has_precomputed_states) {
 548
 549       if(lttvwindowtraces_get_in_progress(g_quark_from_string("state"),
 550                                           trace) == FALSE) {
 551         /* We first remove requests that could have been done for the same
 552          * information. Happens when two viewers ask for it before servicing
 553          * starts.
 554          */
 555         if(!lttvwindowtraces_background_request_find(trace, "state"))
 556           lttvwindowtraces_background_request_queue(
 557               main_window_get_widget(event_viewer_data->tab), trace, "state");
 558         lttvwindowtraces_background_notify_queue(event_viewer_data,
 559                                                  trace,
 560                                                  ltt_time_infinite,
 561                                                  NULL,
 562                                                  background_ready_hook);
 563         event_viewer_data->background_info_waiting++;
 564       } else { /* in progress */
 565
 566         lttvwindowtraces_background_notify_current(event_viewer_data,
 567                                                    trace,
 568                                                    ltt_time_infinite,
 569                                                    NULL,
 570                                                    background_ready_hook);
 571         event_viewer_data->background_info_waiting++;
 572       }
 573     } else {
 574       /* Data ready. By its nature, this viewer doesn't need to have
 575        * its data ready hook called there, because a background
 576        * request is always linked with a redraw.
 577        */
 578     }
 579
 580   }
 581
 582   lttv_hooks_destroy(background_ready_hook);
 583
 584 }
 585
 586 static gboolean
 587 header_size_allocate(GtkWidget *widget,
 588                         GtkAllocation *allocation,
 589                         gpointer user_data)
 590 {
 591   EventViewerData *event_viewer_data = (EventViewerData*)user_data;
 592
 593   event_viewer_data->header_height = allocation->height;
 594
 595   return 0;
 596 }
 597
 598
 599 void tree_v_set_cursor(EventViewerData *event_viewer_data)
 600 {
 601   GtkTreePath *path;
 602
 603   g_debug("set cursor cb");
 604
 605 #if 0
 606   if(event_viewer_data->currently_selected_event != -1)
 607     {
 608       path = gtk_tree_path_new_from_indices(
 609               event_viewer_data->currently_selected_event,
 610               -1);
 611
 612       gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
 613           path, NULL, FALSE);
 614       gtk_tree_path_free(path);
 615     }
 616 #endif //0
 617 }
 618
 619 void tree_v_get_cursor(EventViewerData *event_viewer_data)
 620 {
 621   GtkTreePath *path;
 622   gint *indices;
 623
 624   g_debug("get cursor cb");
 625
 626
 627 #if 0
 628   gtk_tree_view_get_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
 629       &path, NULL);
 630   indices = gtk_tree_path_get_indices(path);
 631
 632   if(indices != NULL)
 633       event_viewer_data->currently_selected_event = indices[0];
 634     else
 635       event_viewer_data->currently_selected_event = -1;
 636
 637   gtk_tree_path_free(path);
 638 #endif //0
 639 }
 640
 641 /* Filter out the key repeats that come too fast */
 642 static gboolean key_handler(GtkWidget *widget, GdkEventKey *event,
 643     gpointer user_data)
 644 {
 645   EventViewerData *evd = (EventViewerData *)user_data;
 646
 647   g_debug("event time : %u , last time : %u", event->time,
 648       evd->last_tree_update_time);
 649
 650   if(guint32_before(event->time, evd->last_tree_update_time))
 651     return TRUE;
 652   else
 653     return FALSE;
 654 }
 655
 656 void tree_v_move_cursor_cb (GtkWidget *widget,
 657                             GtkMovementStep arg1,
 658                             gint arg2,
 659                             gpointer data)
 660 {
 661   GtkTreePath *path; // = gtk_tree_path_new();
 662   gint *indices;
 663   gdouble value;
 664   EventViewerData *event_viewer_data = (EventViewerData*)data;
 665
 666   g_debug("move cursor cb");
 667   //gtk_tree_view_get_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
 668   //                          &path, NULL);
 669   //if(path == NULL)
 670   //{
 671     /* No prior cursor, put it at beginning of page
 672      * and let the execution do */
 673   //  path = gtk_tree_path_new_from_indices(0, -1);
 674   //  gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
 675   //                              path, NULL, FALSE);
 676   //}
 677
 678   //indices = gtk_tree_path_get_indices(path);
 679
 680   //value = gtk_adjustment_get_value(event_viewer_data->vadjust_c);
 681
 682   /* If events request pending, do nothing*/
 683   if(lttvwindow_events_request_pending(event_viewer_data->tab)) return;
 684
 685   /* If no prior position... */
 686 #if 0
 687   if(ltt_time_compare(
 688         lttv_traceset_context_position_get_time(
 689           event_viewer_data->currently_selected_position),
 690         ltt_time_infinite) == 0) {
 691
 692     path = gtk_tree_path_new_from_indices(0, -1);
 693     gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
 694                                 path, NULL, FALSE);
 695
 696     gtk_tree_path_free(path);
 697     return;
 698
 699   }
 700 #endif //0
 701
 702   g_debug("tree view move cursor : arg1 is %u and arg2 is %d",
 703       (guint)arg1, arg2);
 704
 705   switch(arg1) {
 706   case GTK_MOVEMENT_DISPLAY_LINES:
 707     if(arg2 == 1) {
 708       /* Move one line down */
 709       if(event_viewer_data->pos->len > 0) {
 710         LttvTracesetContextPosition *end_pos =
 711           (LttvTracesetContextPosition*)g_ptr_array_index(
 712                                              event_viewer_data->pos,
 713                                              event_viewer_data->pos->len-1);
 714         if(lttv_traceset_context_pos_pos_compare(end_pos,
 715               event_viewer_data->currently_selected_position) == 0) {
 716           /* Must get down one event and select the last one */
 717           gtk_tree_selection_unselect_all(gtk_tree_view_get_selection(
 718                 GTK_TREE_VIEW(event_viewer_data->tree_v)));
 719                                         event_viewer_data->update_cursor = FALSE;
 720                                         gtk_adjustment_set_value(event_viewer_data->vadjust_c,
 721                                                         gtk_adjustment_get_value(event_viewer_data->vadjust_c) + 1);
 722                                         event_viewer_data->update_cursor = TRUE;
 723                                         if(event_viewer_data->pos->len > 0) {
 724                                                 path = gtk_tree_path_new_from_indices(
 725                                                                 max(0, event_viewer_data->pos->len - 1), -1);
 726                                                 if(path) {
 727                                                         gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
 728                                                                                                                                                          path, NULL, FALSE);
 729                                                         gtk_tree_path_free(path);
 730                                                 }
 731                                         }
 732                                 }
 733                         } else {
 734                                 /* Must get down one event and select the last one */
 735                                 gtk_tree_selection_unselect_all(gtk_tree_view_get_selection(
 736                                                         GTK_TREE_VIEW(event_viewer_data->tree_v)));
 737                                 event_viewer_data->update_cursor = FALSE;
 738                                 gtk_adjustment_set_value(event_viewer_data->vadjust_c,
 739                                                 gtk_adjustment_get_value(event_viewer_data->vadjust_c) + 1);
 740                                 event_viewer_data->update_cursor = TRUE;
 741                                 if(event_viewer_data->pos->len > 0) {
 742                                         path = gtk_tree_path_new_from_indices(
 743                                                         max(0, event_viewer_data->pos->len - 1), -1);
 744                                         if(path) {
 745                                                 gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
 746                                                                                                                                                  path, NULL, FALSE);
 747                                                 gtk_tree_path_free(path);
 748                                         }
 749                                 }
 750                         }
 751
 752     } else {
 753       if(event_viewer_data->pos->len > 0) {
 754         /* Move one line up */
 755         LttvTracesetContextPosition *begin_pos =
 756           (LttvTracesetContextPosition*)g_ptr_array_index(
 757                                              event_viewer_data->pos,
 758                                              0);
 759         if(lttv_traceset_context_pos_pos_compare(begin_pos,
 760               event_viewer_data->currently_selected_position) == 0) {
 761           /* Must get up one event and select the first one */
 762           gtk_tree_selection_unselect_all(gtk_tree_view_get_selection(
 763                 GTK_TREE_VIEW(event_viewer_data->tree_v)));
 764                                         event_viewer_data->update_cursor = FALSE;
 765                                         gtk_adjustment_set_value(event_viewer_data->vadjust_c,
 766                                                         gtk_adjustment_get_value(event_viewer_data->vadjust_c) - 1);
 767                                         event_viewer_data->update_cursor = TRUE;
 768                                         if(event_viewer_data->pos->len > 0) {
 769                                                 path = gtk_tree_path_new_from_indices(
 770                                                                 0, -1);
 771                                                 if(path) {
 772                                                         gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
 773                                                                                                                                                          path, NULL, FALSE);
 774                                                         gtk_tree_path_free(path);
 775                                                 }
 776                                         }
 777                                 }
 778                         } else {
 779                                 /* Must get up one event and select the first one */
 780                                 gtk_tree_selection_unselect_all(gtk_tree_view_get_selection(
 781                                                         GTK_TREE_VIEW(event_viewer_data->tree_v)));
 782                                 event_viewer_data->update_cursor = FALSE;
 783                                 gtk_adjustment_set_value(event_viewer_data->vadjust_c,
 784                                                 gtk_adjustment_get_value(event_viewer_data->vadjust_c) - 1);
 785                                 event_viewer_data->update_cursor = TRUE;
 786                                 if(event_viewer_data->pos->len > 0) {
 787                                         path = gtk_tree_path_new_from_indices(
 788                                                         0, -1);
 789                                         if(path) {
 790                                                 gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
 791                                                                                                                                                  path, NULL, FALSE);
 792                                                 gtk_tree_path_free(path);
 793                                         }
 794                                 }
 795                         }
 796     }
 797     break;
 798   case GTK_MOVEMENT_PAGES:
 799     if(arg2 == 1) {
 800       /* Move one page down */
 801       if(event_viewer_data->pos->len > 0) {
 802         LttvTracesetContextPosition *end_pos =
 803           (LttvTracesetContextPosition*)g_ptr_array_index(
 804                                              event_viewer_data->pos,
 805                                              event_viewer_data->pos->len-1);
 806         if(lttv_traceset_context_pos_pos_compare(end_pos,
 807               event_viewer_data->currently_selected_position) == 0) {
 808           /* Must get down one page and select the last one */
 809           gtk_tree_selection_unselect_all(gtk_tree_view_get_selection(
 810                 GTK_TREE_VIEW(event_viewer_data->tree_v)));
 811                                         event_viewer_data->update_cursor = FALSE;
 812                                         gtk_adjustment_set_value(event_viewer_data->vadjust_c,
 813                                                         gtk_adjustment_get_value(event_viewer_data->vadjust_c) + 2);
 814                                         event_viewer_data->update_cursor = TRUE;
 815                                         if(event_viewer_data->pos->len > 0) {
 816                                                 path = gtk_tree_path_new_from_indices(
 817                                                                 event_viewer_data->pos->len - 1, -1);
 818                                                 if(path) {
 819                                                         gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
 820                                                                                                                                                          path, NULL, FALSE);
 821                                                         gtk_tree_path_free(path);
 822                                                 }
 823                                         }
 824                                 }
 825                         } else {
 826                         /* Must get down one page and select the last one */
 827                                 gtk_tree_selection_unselect_all(gtk_tree_view_get_selection(
 828                                                         GTK_TREE_VIEW(event_viewer_data->tree_v)));
 829                                 event_viewer_data->update_cursor = FALSE;
 830                                 gtk_adjustment_set_value(event_viewer_data->vadjust_c,
 831                                                 gtk_adjustment_get_value(event_viewer_data->vadjust_c) + 2);
 832                                 event_viewer_data->update_cursor = TRUE;
 833                                 if(event_viewer_data->pos->len > 0) {
 834                                         path = gtk_tree_path_new_from_indices(
 835                                                         event_viewer_data->pos->len - 1, -1);
 836                                         if(path) {
 837                                                 gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
 838                                                                                                                                                  path, NULL, FALSE);
 839                                                 gtk_tree_path_free(path);
 840                                         }
 841                                 }
 842                         }
 843     } else {
 844       /* Move one page up */
 845       if(event_viewer_data->pos->len > 0) {
 846         LttvTracesetContextPosition *begin_pos =
 847           (LttvTracesetContextPosition*)g_ptr_array_index(
 848                                              event_viewer_data->pos,
 849                                              0);
 850         if(lttv_traceset_context_pos_pos_compare(begin_pos,
 851               event_viewer_data->currently_selected_position) == 0) {
 852           /* Must get up one page and select the first one */
 853           gtk_tree_selection_unselect_all(gtk_tree_view_get_selection(
 854                 GTK_TREE_VIEW(event_viewer_data->tree_v)));
 855                                         event_viewer_data->update_cursor = FALSE;
 856                                         gtk_adjustment_set_value(event_viewer_data->vadjust_c,
 857                                                         gtk_adjustment_get_value(event_viewer_data->vadjust_c) - 2);
 858                                         event_viewer_data->update_cursor = TRUE;
 859                                         if(event_viewer_data->pos->len > 0) {
 860                                                 path = gtk_tree_path_new_from_indices(
 861                                                                 0, -1);
 862                                                 if(path) {
 863                                                         gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
 864                                                                                                                                                          path, NULL, FALSE);
 865                                                         gtk_tree_path_free(path);
 866                                                 }
 867                                         }
 868                                 }
 869                         }       else {
 870                                 /* Must get up one page and select the first one */
 871                                 gtk_tree_selection_unselect_all(gtk_tree_view_get_selection(
 872                                                         GTK_TREE_VIEW(event_viewer_data->tree_v)));
 873                                 event_viewer_data->update_cursor = FALSE;
 874                                 gtk_adjustment_set_value(event_viewer_data->vadjust_c,
 875                                                 gtk_adjustment_get_value(event_viewer_data->vadjust_c) - 2);
 876                                 event_viewer_data->update_cursor = TRUE;
 877                                 if(event_viewer_data->pos->len > 0) {
 878                                         path = gtk_tree_path_new_from_indices(
 879                                                         0, -1);
 880                                         if(path) {
 881                                                 gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
 882                                                                                                                                                  path, NULL, FALSE);
 883                                                 gtk_tree_path_free(path);
 884                                         }
 885                                 }
 886                         }
 887     }
 888     break;
 889   default:
 890     break;
 891   }
 892
 893   //gtk_tree_path_free(path);
 894
 895 #if 0
 896   if(arg1 == GTK_MOVEMENT_DISPLAY_LINES)
 897   {
 898     /* Move one line */
 899     if(arg2 == 1)
 900     {
 901       /* move one line down */
 902       if(indices[0]) // Do we need an empty field here (before first)?
 903       {
 904         if(value + event_viewer_data->num_visible_events <=
 905             event_viewer_data->number_of_events -1)
 906         {
 907           event_viewer_data->currently_selected_event += 1;
 908           //      gtk_adjustment_set_value(event_viewer_data->vadjust_c, value+1);
 909           //gtk_tree_path_free(path);
 910           //path = gtk_tree_path_new_from_indices(event_viewer_data->num_visible_events-1, -1);
 911           //gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v), path, NULL, FALSE);
 912           g_signal_stop_emission_by_name(G_OBJECT(widget), "move-cursor");
 913         }
 914       }
 915     } else {
 916       /* Move one line up */
 917       if(indices[0] == 0)
 918       {
 919         if(value - 1 >= 0 )
 920         {
 921           event_viewer_data->currently_selected_event -= 1;
 922           //      gtk_adjustment_set_value(event_viewer_data->vadjust_c, value-1);
 923           //gtk_tree_path_free(path);
 924           //path = gtk_tree_path_new_from_indices(0, -1);
 925           //gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v), path, NULL, FALSE);
 926           g_signal_stop_emission_by_name(G_OBJECT(widget), "move-cursor");
 927         }
 928       }
 929     }
 930   }
 931
 932   if(arg1 == GTK_MOVEMENT_PAGES)
 933   {
 934     /* Move one page */
 935     if(arg2 == 1)
 936     {
 937       if(event_viewer_data->num_visible_events == 1)
 938         value += 1 ;
 939       /* move one page down */
 940       if(value + event_viewer_data->num_visible_events-1 <=
 941                       event_viewer_data->number_of_events )
 942       {
 943         event_viewer_data->currently_selected_event +=
 944                                   event_viewer_data->num_visible_events-1;
 945         //        gtk_adjustment_set_value(event_viewer_data->vadjust_c,
 946         //               value+(event_viewer_data->num_visible_events-1));
 947         //gtk_tree_path_free(path);
 948         //path = gtk_tree_path_new_from_indices(0, -1);
 949         //gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v), path, NULL, FALSE);
 950         g_signal_stop_emission_by_name(G_OBJECT(widget), "move-cursor");
 951       }
 952     } else {
 953       /* Move one page up */
 954       if(event_viewer_data->num_visible_events == 1)
 955         value -= 1 ;
 956
 957       if(indices[0] < event_viewer_data->num_visible_events - 2 )
 958       {
 959         if(value - (event_viewer_data->num_visible_events-1) >= 0)
 960         {
 961           event_viewer_data->currently_selected_event -=
 962                           event_viewer_data->num_visible_events-1;
 963
 964           //      gtk_adjustment_set_value(event_viewer_data->vadjust_c,
 965           //             value-(event_viewer_data->num_visible_events-1));
 966           //gtk_tree_path_free(path);
 967           //path = gtk_tree_path_new_from_indices(0, -1);
 968           //gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v), path, NULL, FALSE);
 969           g_signal_stop_emission_by_name(G_OBJECT(widget), "move-cursor");
 970
 971         } else {
 972           /* Go to first Event */
 973           event_viewer_data->currently_selected_event == 0 ;
 974           //      gtk_adjustment_set_value(event_viewer_data->vadjust_c,
 975           //             0);
 976           //gtk_tree_path_free(path);
 977           //path = gtk_tree_path_new_from_indices(0, -1);
 978           //gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v), path, NULL, FALSE);
 979           g_signal_stop_emission_by_name(G_OBJECT(widget), "move-cursor");
 980
 981         }
 982       }
 983     }
 984   }
 985
 986   if(arg1 == GTK_MOVEMENT_BUFFER_ENDS)
 987   {
 988     /* Move to the ends of the buffer */
 989     if(arg2 == 1)
 990     {
 991       /* move end of buffer */
 992       event_viewer_data->currently_selected_event =
 993                             event_viewer_data->number_of_events-1 ;
 994       //    gtk_adjustment_set_value(event_viewer_data->vadjust_c,
 995       //           event_viewer_data->number_of_events -
 996       //           event_viewer_data->num_visible_events);
 997       //gtk_tree_path_free(path);
 998       //path = gtk_tree_path_new_from_indices(event_viewer_data->num_visible_events-1, -1);
 999       //gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v), path, NULL, FALSE);
1000       g_signal_stop_emission_by_name(G_OBJECT(widget), "move-cursor");
1001     } else {
1002       /* Move beginning of buffer */
1003       event_viewer_data->currently_selected_event = 0 ;
1004       //    gtk_adjustment_set_value(event_viewer_data->vadjust_c, 0);
1005         //gtk_tree_path_free(path);
1006         //path = gtk_tree_path_new_from_indices(0, -1);
1007         //gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v), path, NULL, FALSE);
1008       g_signal_stop_emission_by_name(G_OBJECT(widget), "move-cursor");
1009     }
1010   }
1011 #endif //0
1012 }
1013
1014 static void        filter_button      (GtkToolButton *toolbutton,
1015                                           gpointer       user_data)
1016 {
1017   LttvPluginEVD *plugin_evd = (LttvPluginEVD*)user_data;
1018   LttvAttribute *attribute;
1019   LttvAttributeValue value;
1020   gboolean ret;
1021   g_printf("Filter button clicked\n");
1022
1023   attribute = LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(
1024         LTTV_IATTRIBUTE(lttv_global_attributes()),
1025         LTTV_VIEWER_CONSTRUCTORS));
1026   g_assert(attribute);
1027
1028   ret = lttv_iattribute_find_by_path(LTTV_IATTRIBUTE(attribute),
1029       "guifilter", LTTV_POINTER, &value);
1030   g_assert(ret);
1031   lttvwindow_viewer_constructor constructor =
1032     (lttvwindow_viewer_constructor)*(value.v_pointer);
1033   if(constructor) constructor(&plugin_evd->parent);
1034   else g_warning("Filter module not loaded.");
1035
1036   //FIXME : viewer returned.
1037 }
1038
1039 gboolean tree_v_scroll_handler (GtkWidget *widget, GdkEventScroll *event, gpointer data)
1040 {
1041         EventViewerData *event_viewer_data = (EventViewerData*) data;
1042         Tab *tab = event_viewer_data->tab;
1043
1044         switch(event->direction) {
1045                 case GDK_SCROLL_UP:
1046                         gtk_adjustment_set_value(event_viewer_data->vadjust_c,
1047                                 gtk_adjustment_get_value(event_viewer_data->vadjust_c) - 1);
1048                         break;
1049                 case GDK_SCROLL_DOWN:
1050                         gtk_adjustment_set_value(event_viewer_data->vadjust_c,
1051                                 gtk_adjustment_get_value(event_viewer_data->vadjust_c) + 1);
1052                         break;
1053                 default:
1054                         g_error("Only scroll up and down expected");
1055         }
1056         return TRUE;
1057 }
1058
1059 void tree_v_cursor_changed_cb (GtkWidget *widget, gpointer data)
1060 {
1061   EventViewerData *event_viewer_data = (EventViewerData*) data;
1062   Tab *tab = event_viewer_data->tab;
1063   GtkTreeIter iter;
1064   GtkTreeModel* model = GTK_TREE_MODEL(event_viewer_data->store_m);
1065   GtkTreePath *path;
1066   LttvTracesetContextPosition *pos;
1067
1068   g_debug("cursor changed cb");
1069
1070   /* On cursor change, modify the currently selected event by calling
1071    * the right API function */
1072   if(event_viewer_data->report_position) {
1073     if(event_viewer_data->pos->len > 0) {
1074                         gtk_tree_view_get_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
1075                                         &path, NULL);
1076                         if(path) {
1077                                 if(gtk_tree_model_get_iter(model,&iter,path)){
1078                                         gtk_tree_model_get(model, &iter, POSITION_COLUMN, &pos, -1);
1079
1080                                         if(lttv_traceset_context_pos_pos_compare(pos,
1081                                                                 event_viewer_data->currently_selected_position) != 0)
1082                                                 lttvwindow_report_current_position(tab, pos);
1083                                 }else{
1084                                         g_warning("Can not get iter\n");
1085                                 }
1086                                 gtk_tree_path_free(path);
1087                         }
1088                 }
1089         }
1090 }
1091
1092
1093 static void tree_selection_changed_cb (GtkTreeSelection *selection,
1094     gpointer data)
1095 {
1096   g_debug("tree sel changed cb");
1097   EventViewerData *event_viewer_data = (EventViewerData*) data;
1098
1099 #if 0
1100     /* Set the cursor to currently selected event */
1101   GtkTreeModel* model = GTK_TREE_MODEL(event_viewer_data->store_m);
1102   GtkTreeIter iter;
1103   LttvTracesetContextPosition *pos;
1104   guint i;
1105   GtkTreePath *tree_path;
1106
1107   for(i=0;i<event_viewer_data->num_visible_events;i++) {
1108     tree_path = gtk_tree_path_new_from_indices(
1109                 i,
1110                -1);
1111     if(gtk_tree_model_get_iter(model,&iter,tree_path)){
1112       gtk_tree_model_get(model, &iter, POSITION_COLUMN, &pos, -1);
1113
1114       if(lttv_traceset_context_pos_pos_compare(pos,
1115             event_viewer_data->currently_selected_position) == 0) {
1116         /* Match! */
1117             gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
1118                 tree_path, NULL, FALSE);
1119         break;
1120       }
1121
1122     }else{
1123       g_warning("Can not get iter\n");
1124     }
1125    gtk_tree_path_free(tree_path);
1126   }
1127 #endif //0
1128 }
1129
1130 #if 0
1131 static gint key_snooper(GtkWidget *grab_widget, GdkEventKey *event,
1132     gpointer func_data)
1133 {
1134   return TRUE;
1135 }
1136 #endif //0
1137
1138 /* This callback may be recalled after a step up/down, but we don't want to lose
1139  * the exact position : what we do is that we only set the value if it has
1140  * changed : a step up/down that doesn't change the time value of the first
1141  * event won't trigger a scrollbar change. */
1142
1143 void v_scroll_cb (GtkAdjustment *adjustment, gpointer data)
1144 {
1145   EventViewerData *event_viewer_data = (EventViewerData*)data;
1146   LttvTracesetStats *tss =
1147     lttvwindow_get_traceset_stats(event_viewer_data->tab);
1148   LttvTracesetContext *tsc = (LttvTracesetContext*)tss;
1149   g_debug("SCROLL begin");
1150   g_debug("SCROLL values : %g , %g, %g",
1151       adjustment->value, event_viewer_data->previous_value,
1152       (adjustment->value - event_viewer_data->previous_value));
1153
1154   LttTime new_time_off = ltt_time_from_double(adjustment->value);
1155   LttTime old_time_off = ltt_time_from_double(event_viewer_data->previous_value);
1156   g_debug("SCROLL time values %lu.%lu, %lu.%lu", new_time_off.tv_sec,
1157       new_time_off.tv_nsec, old_time_off.tv_sec, old_time_off.tv_nsec);
1158   /* If same value : nothing to update */
1159   if(ltt_time_compare(new_time_off, old_time_off) == 0)
1160     return;
1161
1162   //LttTime old_time = event_viewer_data->first_event;
1163
1164
1165   //gint snoop = gtk_key_snooper_install(key_snooper, NULL);
1166
1167   get_events(adjustment->value, event_viewer_data);
1168
1169   //gtk_key_snooper_remove(snoop);
1170 #if 0
1171   LttTime time = ltt_time_sub(event_viewer_data->first_event,
1172                               tsc->time_span.start_time);
1173   double value = ltt_time_to_double(time);
1174   gtk_adjustment_set_value(event_viewer_data->vadjust_c, value);
1175
1176   if(event_viewer_data->currently_selected_event != -1) {
1177
1178       tree_path = gtk_tree_path_new_from_indices(
1179              event_viewer_data->currently_selected_event,
1180              -1);
1181
1182       //      gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v), tree_path,
1183       //             NULL, FALSE);
1184       gtk_tree_path_free(tree_path);
1185   }
1186 #endif //0
1187   g_debug("SCROLL end");
1188 }
1189
1190 static __inline gint get_cell_height(GtkTreeView *TreeView)
1191 {
1192   gint height;
1193   GtkTreeViewColumn *column = gtk_tree_view_get_column(TreeView, 0);
1194
1195   gtk_tree_view_column_cell_get_size(column, NULL, NULL, NULL, NULL, &height);
1196
1197   gint vertical_separator;
1198   gtk_widget_style_get (GTK_WIDGET (TreeView),
1199       "vertical-separator", &vertical_separator,
1200       NULL);
1201
1202         height += vertical_separator;
1203
1204   return height;
1205 }
1206
1207 void tree_v_size_allocate_cb (GtkWidget *widget, GtkAllocation *alloc, gpointer data)
1208 {
1209   EventViewerData *event_viewer_data = (EventViewerData*)data;
1210   gint cell_height = get_cell_height(GTK_TREE_VIEW(event_viewer_data->tree_v));
1211   gint last_num_visible_events = event_viewer_data->num_visible_events;
1212   gdouble exact_num_visible;
1213
1214   exact_num_visible = ( alloc->height -
1215           event_viewer_data->header_height )
1216             / (double)cell_height ;
1217
1218   event_viewer_data->num_visible_events = ceil(exact_num_visible) ;
1219
1220 /*
1221   event_viewer_data->vadjust_c->page_increment =
1222     floor(exact_num_visible);
1223   event_viewer_data->vadjust_c->page_size =
1224     floor(exact_num_visible);
1225 */
1226
1227   g_debug("size allocate %p : last_num_visible_events : %d",
1228            event_viewer_data, last_num_visible_events);
1229   g_debug("num_visible_events : %d, value %lu",
1230            event_viewer_data->num_visible_events,
1231            event_viewer_data->vadjust_c->value);
1232
1233   if(event_viewer_data->num_visible_events != last_num_visible_events) {
1234       get_events(event_viewer_data->vadjust_c->value, event_viewer_data);
1235   }
1236
1237
1238 }
1239
1240 void tree_v_size_request_cb (GtkWidget *widget, GtkRequisition *requisition, gpointer data)
1241 {
1242   gint h;
1243   EventViewerData *event_viewer_data = (EventViewerData*)data;
1244   gint cell_height = get_cell_height(GTK_TREE_VIEW(event_viewer_data->tree_v));
1245
1246   h = cell_height + event_viewer_data->header_height;
1247   requisition->height = h;
1248
1249 }
1250
1251 #if 0
1252 gboolean show_event_detail(void * hook_data, void * call_data)
1253 {
1254   EventViewerData *event_viewer_data = (EventViewerData*) hook_data;
1255   LttvTracesetContext * tsc = lttvwindow_get_traceset_context(event_viewer_data->tab);
1256
1257   if(event_viewer_data->event_fields_queue_tmp->length == 0 &&
1258      event_viewer_data->event_fields_queue->length == 0){
1259     event_viewer_data->shown = FALSE;
1260     return FALSE;
1261   }
1262
1263   if(event_viewer_data->shown == FALSE){
1264     event_viewer_data->shown = TRUE;
1265     update_raw_data_array(event_viewer_data,
1266         event_viewer_data->event_fields_queue_tmp->length);
1267
1268     get_data(event_viewer_data->vadjust_c->value,
1269       event_viewer_data->num_visible_events,
1270       event_viewer_data);
1271
1272     remove_context_hooks(event_viewer_data,tsc);
1273   }
1274
1275   return FALSE;
1276 }
1277 #endif //0
1278
1279 static gboolean events_check_handler(guint count, gboolean *stop_flag,
1280   gpointer data)
1281 {
1282   EventViewerData *evd = (EventViewerData*)data;
1283   if(count % CHECK_GDK_INTERVAL == 0) {
1284     GdkEvent *event;
1285     GtkWidget *widget;
1286     while((event = gdk_event_get()) != NULL) {
1287         widget = gtk_get_event_widget(event);
1288         if(widget ==
1289           lookup_widget(main_window_get_widget(evd->tab),
1290               "StopProcessingButton")
1291           || widget == evd->vscroll_vc) {
1292           gtk_main_do_event(event);
1293           gdk_window_process_all_updates();
1294         }
1295         gdk_event_free(event);
1296     }
1297     if(*stop_flag)
1298       return TRUE;
1299     else
1300       return FALSE;
1301   } else return FALSE;
1302 }
1303
1304 static void get_events(double new_value, EventViewerData *event_viewer_data)
1305 {
1306   GtkTreePath *tree_path;
1307   LttvTracesetStats *tss =
1308     lttvwindow_get_traceset_stats(event_viewer_data->tab);
1309   LttvTracesetContext *tsc = (LttvTracesetContext*)tss;
1310   guint i;
1311   gboolean seek_by_time;
1312
1313   if(lttvwindow_preempt_count > 0) return;
1314
1315   double value = new_value - event_viewer_data->previous_value;
1316
1317   /* Set stop button status for foreground processing */
1318   event_viewer_data->tab->stop_foreground = FALSE;
1319   lttvwindow_events_request_disable();
1320
1321   /* See where we have to scroll... */
1322   ScrollDirection direction;
1323   gint relative_position;
1324
1325   if(value < -0.8) {
1326     if(value >= -1.0) direction = SCROLL_STEP_UP;
1327     else {
1328       if(value >= -2.0) direction = SCROLL_PAGE_UP;
1329       else direction = SCROLL_JUMP;
1330     }
1331   } else if(value > 0.8) {
1332     if(value <= 1.0) direction = SCROLL_STEP_DOWN;
1333     else {
1334       if(value <= 2.0) direction = SCROLL_PAGE_DOWN;
1335       else direction = SCROLL_JUMP;
1336     }
1337   } else direction = SCROLL_NONE; /* 0.0 */
1338
1339
1340   switch(direction) {
1341   case SCROLL_STEP_UP:
1342     g_debug("get_events : SCROLL_STEP_UP");
1343     relative_position = -1;
1344     seek_by_time = 0;
1345     break;
1346   case SCROLL_STEP_DOWN:
1347     g_debug("get_events : SCROLL_STEP_DOWN");
1348     relative_position = 1;
1349     seek_by_time = 0;
1350     break;
1351   case SCROLL_PAGE_UP:
1352     g_debug("get_events : SCROLL_PAGE_UP");
1353     relative_position = -(event_viewer_data->num_visible_events);
1354     seek_by_time = 0;
1355     break;
1356   case SCROLL_PAGE_DOWN:
1357     g_debug("get_events : SCROLL_PAGE_DOWN");
1358     relative_position = event_viewer_data->num_visible_events;
1359     seek_by_time = 0;
1360     break;
1361   case SCROLL_JUMP:
1362     g_debug("get_events : SCROLL_JUMP");
1363     seek_by_time = 1;
1364     break;
1365   case SCROLL_NONE:
1366     g_debug("get_events : SCROLL_NONE");
1367     relative_position = 0;
1368     seek_by_time = 0;
1369     break;
1370   }
1371
1372   LttTime time = ltt_time_from_double(new_value);
1373   time = ltt_time_add(tsc->time_span.start_time, time);
1374
1375   if(!seek_by_time) {
1376
1377     LttvTracesetContextPosition *pos =
1378         lttv_traceset_context_position_new(tsc);
1379
1380     /* Remember the beginning position */
1381     if(event_viewer_data->pos->len > 0) {
1382       LttvTracesetContextPosition *first_pos =
1383         (LttvTracesetContextPosition*)g_ptr_array_index(
1384                                                     event_viewer_data->pos,
1385                                                     0);
1386       lttv_traceset_context_position_copy(pos, first_pos);
1387
1388       if(relative_position >= 0) {
1389         LttTime first_event_time =
1390             lttv_traceset_context_position_get_time(
1391                               pos);
1392         lttv_state_traceset_seek_time_closest((LttvTracesetState*)tsc,
1393           first_event_time);
1394         lttv_process_traceset_middle(tsc, ltt_time_infinite,
1395                                    G_MAXUINT,
1396                                    pos);
1397
1398       } else if(relative_position < 0) {
1399         g_assert(lttv_process_traceset_seek_position(tsc, pos) == 0);
1400       }
1401     } else {
1402       /* There is nothing in the list : simply seek to the time value. */
1403       lttv_state_traceset_seek_time_closest((LttvTracesetState*)tsc,
1404           time);
1405       lttv_process_traceset_middle(tsc, time, G_MAXUINT,
1406                                    NULL);
1407     }
1408
1409   /* Note that, as we mess with the tsc position, this function CANNOT be called
1410    * from a hook inside the lttv_process_traceset_middle. */
1411   /* As the lttvwindow API keeps a sync_position inside the tsc to go back at
1412    * the right spot after being interrupted, it's ok to change the tsc position,
1413    * as long as we do not touch the sync_position. */
1414
1415   /* Get the beginning position of the read (with seek backward or seek forward)
1416    */
1417     if(relative_position > 0) {
1418       guint count;
1419       count += lttv_process_traceset_seek_n_forward(tsc, relative_position,
1420           events_check_handler,
1421           &event_viewer_data->tab->stop_foreground,
1422           event_viewer_data->main_win_filter,
1423           event_viewer_data->filter, NULL, event_viewer_data);
1424     } else if(relative_position < 0) {
1425       guint count;
1426
1427       /* Get an idea of currently shown event dispersion */
1428       LttTime first_event_time =
1429         lttv_traceset_context_position_get_time(event_viewer_data->first_event);
1430       LttTime last_event_time =
1431         lttv_traceset_context_position_get_time(event_viewer_data->last_event);
1432       LttTime time_diff = ltt_time_sub(last_event_time, first_event_time);
1433       if(ltt_time_compare(time_diff, ltt_time_zero) == 0)
1434         time_diff = seek_back_default_offset;
1435
1436       count = lttv_process_traceset_seek_n_backward(tsc,
1437           abs(relative_position),
1438           time_diff,
1439           (seek_time_fct)lttv_state_traceset_seek_time_closest,
1440           events_check_handler,
1441           &event_viewer_data->tab->stop_foreground,
1442           event_viewer_data->main_win_filter,
1443           event_viewer_data->filter, NULL, event_viewer_data);
1444     } /* else 0 : do nothing : we are already at the beginning position */
1445
1446     lttv_traceset_context_position_destroy(pos);
1447
1448     /* Save the first event position */
1449     lttv_traceset_context_position_save(tsc, event_viewer_data->first_event);
1450
1451     time = lttv_traceset_context_position_get_time(
1452                                             event_viewer_data->first_event);
1453     //if(ltt_time_compare(time, tsc->time_span.end_time) > 0)
1454     //  time = tsc->time_span.end_time;
1455
1456     LttTime time_val = ltt_time_sub(time,
1457                         tsc->time_span.start_time);
1458     event_viewer_data->previous_value = ltt_time_to_double(time_val);
1459
1460     lttv_state_traceset_seek_time_closest((LttvTracesetState*)tsc, time);
1461     lttv_process_traceset_middle(tsc, ltt_time_infinite, G_MAXUINT,
1462                                  event_viewer_data->first_event);
1463
1464   } else {
1465     /* Seek by time */
1466     lttv_state_traceset_seek_time_closest((LttvTracesetState*)tsc,
1467           time);
1468     lttv_process_traceset_middle(tsc, time, G_MAXUINT,
1469                                  NULL);
1470     LttTime time_val = ltt_time_sub(time,
1471                         tsc->time_span.start_time);
1472     event_viewer_data->previous_value = ltt_time_to_double(time_val);
1473     lttv_traceset_context_position_save(tsc, event_viewer_data->first_event);
1474   }
1475
1476   /* Clear the model (don't forget to free the TCS positions!) */
1477   gtk_list_store_clear(event_viewer_data->store_m);
1478   for(i=0;i<event_viewer_data->pos->len;i++) {
1479     LttvTracesetContextPosition *cur_pos =
1480       (LttvTracesetContextPosition*)g_ptr_array_index(event_viewer_data->pos,
1481                                                       i);
1482     lttv_traceset_context_position_destroy(cur_pos);
1483   }
1484   g_ptr_array_set_size(event_viewer_data->pos, 0);
1485
1486
1487   /* Mathieu :
1488    * I make the choice not to use the mainwindow lttvwindow API here : the idle
1489    * loop might have a too low priority, and we want good update while
1490    * scrolling. However, we call the gdk loop to get events periodically so the
1491    * processing can be stopped.
1492    */
1493
1494   lttv_process_traceset_begin(tsc,
1495       NULL, NULL, NULL, event_viewer_data->event_hooks, NULL);
1496
1497   event_viewer_data->num_events = 0;
1498
1499   lttv_process_traceset_middle(tsc, ltt_time_infinite, G_MAXUINT, NULL);
1500
1501   lttv_process_traceset_end(tsc,
1502       NULL, NULL, NULL, event_viewer_data->event_hooks, NULL);
1503
1504   /* Get the end position */
1505   if(event_viewer_data->pos->len > 0) {
1506     LttvTracesetContextPosition *cur_pos =
1507       (LttvTracesetContextPosition*)g_ptr_array_index(event_viewer_data->pos,
1508                                                event_viewer_data->pos->len - 1);
1509     lttv_traceset_context_position_copy(event_viewer_data->last_event,
1510         cur_pos);
1511   } else
1512     lttv_traceset_context_position_save(tsc, event_viewer_data->last_event);
1513
1514   gtk_adjustment_set_value(event_viewer_data->vadjust_c,
1515       event_viewer_data->previous_value);
1516
1517   //g_signal_emit_by_name(G_OBJECT (event_viewer_data->select_c),
1518   //    "changed");
1519
1520   event_viewer_data->last_tree_update_time =
1521     gdk_x11_get_server_time(
1522         gtk_widget_get_parent_window(event_viewer_data->tree_v));
1523
1524   lttvwindow_events_request_enable();
1525
1526   return;
1527 }
1528
1529
1530 int event_hook(void *hook_data, void *call_data)
1531 {
1532   EventViewerData *event_viewer_data = (EventViewerData*)hook_data;
1533   LttvTracefileContext *tfc = (LttvTracefileContext*)call_data;
1534   LttvTracefileState *tfs = (LttvTracefileState*)call_data;
1535   LttEvent *e = ltt_tracefile_get_event(tfc->tf);
1536
1537   if(event_viewer_data->num_events % CHECK_GDK_INTERVAL == 0) {
1538     GdkEvent *event;
1539     GtkWidget *widget;
1540     while((event = gdk_event_get()) != NULL) {
1541         widget = gtk_get_event_widget(event);
1542         if(widget ==
1543           lookup_widget(main_window_get_widget(event_viewer_data->tab),
1544               "StopProcessingButton")
1545           || widget == event_viewer_data->vscroll_vc) {
1546           gtk_main_do_event(event);
1547           gdk_window_process_all_updates();
1548         }
1549         gdk_event_free(event);
1550     }
1551     //gtk_main_iteration_do(FALSE);
1552     if(event_viewer_data->tab->stop_foreground)
1553       return TRUE;
1554   }
1555   event_viewer_data->num_events++;
1556
1557   LttvFilter *filter = event_viewer_data->main_win_filter;
1558   if(filter != NULL && filter->head != NULL)
1559     if(!lttv_filter_tree_parse(filter->head,e,tfc->tf,
1560           tfc->t_context->t,tfc,NULL,NULL))
1561       return FALSE;
1562
1563   filter = event_viewer_data->filter;
1564   if(filter != NULL && filter->head != NULL)
1565     if(!lttv_filter_tree_parse(filter->head,e,tfc->tf,
1566           tfc->t_context->t,tfc,NULL,NULL))
1567       return FALSE;
1568
1569
1570 //  LttFacility *facility = ltt_event_facility(e);
1571 //  LttEventType *event_type = ltt_event_eventtype(e);
1572   LttTime time = ltt_event_time(e);
1573
1574   guint cpu = tfs->cpu;
1575   LttvTraceState *ts = (LttvTraceState*)tfc->t_context;
1576   LttvProcessState *process = ts->running_process[cpu];
1577
1578   GtkTreeIter iter;
1579
1580   GString *desc = g_string_new("");
1581
1582   LttvTracesetContextPosition *pos =
1583     lttv_traceset_context_position_new(tfc->t_context->ts_context);
1584
1585   lttv_traceset_context_position_save(tfc->t_context->ts_context, pos);
1586
1587   lttv_event_to_string(e, desc, TRUE, TRUE, (LttvTracefileState*)tfc);
1588
1589   g_info("detail : %s", desc->str);
1590
1591   gtk_list_store_append (event_viewer_data->store_m, &iter);
1592   gtk_list_store_set (event_viewer_data->store_m, &iter,
1593       TRACE_NAME_COLUMN, g_quark_to_string(ltt_trace_name(tfc->t_context->t)),
1594       TRACEFILE_NAME_COLUMN, g_quark_to_string(ltt_tracefile_name(tfc->tf)),
1595       CPUID_COLUMN, cpu,
1596       EVENT_COLUMN, g_quark_to_string(marker_get_info_from_id(tfc->t_context->t, e->event_id)->name),
1597       TIME_S_COLUMN, time.tv_sec,
1598       TIME_NS_COLUMN, time.tv_nsec,
1599       PID_COLUMN, process->pid,
1600       EVENT_DESCR_COLUMN, desc->str,
1601       POSITION_COLUMN, pos,
1602       -1);
1603
1604   g_ptr_array_add(event_viewer_data->pos, pos);
1605
1606   g_string_free(desc, TRUE);
1607
1608   if(event_viewer_data->update_cursor) {
1609     if(lttv_traceset_context_pos_pos_compare(pos,
1610           event_viewer_data->currently_selected_position) == 0) {
1611       GtkTreePath *path = gtk_tree_path_new_from_indices(
1612                           event_viewer_data->pos->len - 1, -1);
1613                         if(path) {
1614               gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
1615                                    path, NULL, FALSE);
1616           gtk_tree_path_free(path);
1617                         }
1618     }
1619   }
1620
1621   if(event_viewer_data->pos->len >= event_viewer_data->num_visible_events )
1622     return TRUE;
1623   else
1624     return FALSE;
1625 }
1626
1627
1628
1629 static void event_update_selection(EventViewerData *event_viewer_data)
1630 {
1631   guint i;
1632   GPtrArray *positions = event_viewer_data->pos;
1633   g_info("event_update_selection");
1634
1635   for(i=0;i<positions->len;i++) {
1636     LttvTracesetContextPosition *cur_pos =
1637       (LttvTracesetContextPosition*)g_ptr_array_index(positions, i);
1638     if(lttv_traceset_context_pos_pos_compare(cur_pos,
1639           event_viewer_data->currently_selected_position) == 0) {
1640       GtkTreePath *path = gtk_tree_path_new_from_indices(i, -1);
1641                         if(path) {
1642               gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
1643                                      path, NULL, FALSE);
1644               gtk_tree_path_free(path);
1645                         }
1646     }
1647   }
1648 }
1649
1650 static int current_time_get_first_event_hook(void *hook_data, void *call_data)
1651 {
1652   EventViewerData *event_viewer_data = (EventViewerData*)hook_data;
1653   LttvTracefileContext *tfc = (LttvTracefileContext*)call_data;
1654   LttEvent *e = ltt_tracefile_get_event(tfc->tf);
1655
1656   LttvFilter *filter = event_viewer_data->main_win_filter;
1657   if(filter != NULL && filter->head != NULL)
1658     if(!lttv_filter_tree_parse(filter->head,e,tfc->tf,
1659           tfc->t_context->t,tfc,NULL,NULL))
1660       return FALSE;
1661
1662   filter = event_viewer_data->filter;
1663   if(filter != NULL && filter->head != NULL)
1664     if(!lttv_filter_tree_parse(filter->head,e,tfc->tf,
1665           tfc->t_context->t,tfc,NULL,NULL))
1666       return FALSE;
1667
1668   lttv_traceset_context_position_save(tfc->t_context->ts_context,
1669       event_viewer_data->current_time_get_first);
1670   return TRUE;
1671 }
1672
1673
1674 gboolean update_current_time(void * hook_data, void * call_data)
1675 {
1676   g_info("update_current_time");
1677   EventViewerData *event_viewer_data = (EventViewerData*) hook_data;
1678   const LttTime * current_time = (LttTime*)call_data;
1679   LttvTracesetContext * tsc =
1680         lttvwindow_get_traceset_context(event_viewer_data->tab);
1681   GtkTreePath *path;
1682
1683   /* If the currently selected event time != current time, set the first event
1684    * with this time as currently selected. */
1685   LttTime pos_time = lttv_traceset_context_position_get_time(
1686       event_viewer_data->currently_selected_position);
1687   if(ltt_time_compare(pos_time, *current_time) != 0) {
1688
1689     lttv_state_traceset_seek_time_closest((LttvTracesetState*)tsc,
1690         *current_time);
1691     lttv_process_traceset_middle(tsc, *current_time, G_MAXUINT,
1692                                    NULL);
1693
1694     /* Get the first event that passes in the filter */
1695     event_viewer_data->current_time_get_first =
1696                 lttv_traceset_context_position_new(tsc);
1697     LttvHooks *hooks = lttv_hooks_new();
1698     lttv_hooks_add(hooks,
1699                    current_time_get_first_event_hook,
1700                    event_viewer_data,
1701                    LTTV_PRIO_DEFAULT);
1702
1703     lttv_process_traceset_begin(tsc,
1704         NULL, NULL, NULL, hooks, NULL);
1705
1706     lttv_process_traceset_middle(tsc, ltt_time_infinite, G_MAXUINT, NULL);
1707
1708     lttv_process_traceset_end(tsc,
1709         NULL, NULL, NULL, hooks, NULL);
1710
1711     lttv_hooks_destroy(hooks);
1712
1713     lttv_traceset_context_position_copy(
1714         event_viewer_data->currently_selected_position,
1715         event_viewer_data->current_time_get_first);
1716     lttv_traceset_context_position_destroy(
1717         event_viewer_data->current_time_get_first);
1718     pos_time = lttv_traceset_context_position_get_time(
1719         event_viewer_data->currently_selected_position);
1720   }
1721
1722   LttTime time = ltt_time_sub(pos_time, tsc->time_span.start_time);
1723   double new_value = ltt_time_to_double(time);
1724
1725   event_viewer_data->report_position = FALSE;
1726   /* Change the viewed area if does not match */
1727   if(lttv_traceset_context_pos_pos_compare(
1728         event_viewer_data->currently_selected_position,
1729         event_viewer_data->first_event) < 0
1730     ||
1731      lttv_traceset_context_pos_pos_compare(
1732         event_viewer_data->currently_selected_position,
1733         event_viewer_data->last_event) > 0) {
1734     gtk_adjustment_set_value(event_viewer_data->vadjust_c, new_value);
1735   } else {
1736     /* Simply update the current time : it is in the list */
1737     event_update_selection(event_viewer_data);
1738   }
1739   event_viewer_data->report_position = TRUE;
1740
1741   return FALSE;
1742 }
1743
1744 gboolean update_current_position(void * hook_data, void * call_data)
1745 {
1746   g_info("update_current_position");
1747   EventViewerData *event_viewer_data = (EventViewerData*) hook_data;
1748   const LttvTracesetContextPosition *current_pos =
1749     (LttvTracesetContextPosition*)call_data;
1750   LttvTracesetContext * tsc =
1751         lttvwindow_get_traceset_context(event_viewer_data->tab);
1752
1753   if(lttv_traceset_context_pos_pos_compare(
1754         event_viewer_data->currently_selected_position, current_pos) != 0) {
1755     lttv_traceset_context_position_copy(
1756         event_viewer_data->currently_selected_position, current_pos);
1757
1758     /* Change the viewed area if does not match */
1759     if(lttv_traceset_context_pos_pos_compare(
1760           event_viewer_data->currently_selected_position,
1761           event_viewer_data->first_event) < 0
1762       ||
1763        lttv_traceset_context_pos_pos_compare(
1764           event_viewer_data->currently_selected_position,
1765           event_viewer_data->last_event) > 0) {
1766       LttTime time = lttv_traceset_context_position_get_time(current_pos);
1767       time = ltt_time_sub(time, tsc->time_span.start_time);
1768       double new_value = ltt_time_to_double(time);
1769       gtk_adjustment_set_value(event_viewer_data->vadjust_c, new_value);
1770     } else {
1771       /* Simply update the current time : it is in the list */
1772       event_update_selection(event_viewer_data);
1773     }
1774
1775   }
1776
1777
1778   return FALSE;
1779 }
1780
1781
1782
1783 gboolean traceset_changed(void * hook_data, void * call_data)
1784 {
1785   EventViewerData *event_viewer_data = (EventViewerData*) hook_data;
1786   LttvTracesetContext * tsc =
1787         lttvwindow_get_traceset_context(event_viewer_data->tab);
1788   TimeInterval time_span = tsc->time_span;
1789
1790   LttTime end;
1791   gtk_list_store_clear(event_viewer_data->store_m);
1792   g_ptr_array_set_size(event_viewer_data->pos, 0);
1793
1794   end = ltt_time_sub(time_span.end_time, time_span.start_time);
1795   event_viewer_data->vadjust_c->upper = ltt_time_to_double(end);
1796
1797   /* Reset the positions */
1798   lttv_traceset_context_position_destroy(
1799       event_viewer_data->currently_selected_position);
1800   lttv_traceset_context_position_destroy(
1801       event_viewer_data->first_event);
1802   lttv_traceset_context_position_destroy(
1803       event_viewer_data->last_event);
1804
1805   event_viewer_data->currently_selected_position =
1806     lttv_traceset_context_position_new(tsc);
1807   event_viewer_data->first_event =
1808     lttv_traceset_context_position_new(tsc);
1809   event_viewer_data->last_event =
1810     lttv_traceset_context_position_new(tsc);
1811
1812   get_events(event_viewer_data->vadjust_c->value, event_viewer_data);
1813   //  event_viewer_data->vadjust_c->value = 0;
1814
1815         request_background_data(event_viewer_data);
1816
1817   return FALSE;
1818 }
1819
1820 gboolean filter_changed(void * hook_data, void * call_data)
1821 {
1822   EventViewerData *event_viewer_data = (EventViewerData*) hook_data;
1823   LttvTracesetContext * tsc =
1824         lttvwindow_get_traceset_context(event_viewer_data->tab);
1825
1826   event_viewer_data->main_win_filter =
1827     (LttvFilter*)call_data;
1828   get_events(event_viewer_data->vadjust_c->value, event_viewer_data);
1829
1830   return FALSE;
1831 }
1832
1833
1834 gint evd_redraw_notify(void *hook_data, void *call_data)
1835 {
1836   EventViewerData *event_viewer_data = (EventViewerData*) hook_data;
1837
1838   get_events(event_viewer_data->vadjust_c->value, event_viewer_data);
1839   return 0;
1840 }
1841
1842 void gui_events_free(gpointer data)
1843 {
1844   LttvPluginEVD *plugin_evd = (LttvPluginEVD*)data;
1845   Tab *tab = plugin_evd->evd->tab;
1846   EventViewerData *event_viewer_data = plugin_evd->evd;
1847   guint i;
1848
1849   lttv_filter_destroy(plugin_evd->evd->filter);
1850
1851   if(tab != NULL){
1852     lttv_hooks_remove(event_viewer_data->event_hooks,event_hook);
1853     lttv_hooks_destroy(event_viewer_data->event_hooks);
1854
1855     for(i=0;i<event_viewer_data->pos->len;i++) {
1856       LttvTracesetContextPosition *cur_pos =
1857         (LttvTracesetContextPosition*)g_ptr_array_index(event_viewer_data->pos,
1858                                                         i);
1859       lttv_traceset_context_position_destroy(cur_pos);
1860     }
1861     lttv_traceset_context_position_destroy(
1862         event_viewer_data->currently_selected_position);
1863     lttv_traceset_context_position_destroy(
1864         event_viewer_data->first_event);
1865     lttv_traceset_context_position_destroy(
1866         event_viewer_data->last_event);
1867     g_ptr_array_free(event_viewer_data->pos, TRUE);
1868
1869     lttvwindow_unregister_current_time_notify(tab,
1870                         update_current_time, event_viewer_data);
1871     lttvwindow_unregister_current_position_notify(tab,
1872                         update_current_position, event_viewer_data);
1873     //lttvwindow_unregister_show_notify(tab,
1874     //                    show_event_detail, event_viewer_data);
1875     lttvwindow_unregister_traceset_notify(tab,
1876                         traceset_changed, event_viewer_data);
1877     lttvwindow_unregister_filter_notify(tab,
1878                         filter_changed, event_viewer_data);
1879     lttvwindow_unregister_redraw_notify(tab,
1880                 evd_redraw_notify, event_viewer_data);
1881
1882   }
1883   lttvwindowtraces_background_notify_remove(event_viewer_data);
1884
1885   g_event_viewer_data_list = g_slist_remove(g_event_viewer_data_list,
1886       event_viewer_data);
1887   //g_free(event_viewer_data);
1888   g_object_unref(plugin_evd);
1889 }
1890
1891
1892
1893 void gui_events_destructor(gpointer data)
1894 {
1895   LttvPluginEVD *plugin_evd = (LttvPluginEVD*)data;
1896   /* May already been done by GTK window closing */
1897   if(GTK_IS_WIDGET(plugin_evd->parent.top_widget)){
1898     gtk_widget_destroy(plugin_evd->parent.top_widget);
1899   }
1900 }
1901
1902
1903
1904 /**
1905  * plugin's init function
1906  *
1907  * This function initializes the Event Viewer functionnality through the
1908  * gtkTraceSet API.
1909  */
1910 static void init() {
1911
1912   lttvwindow_register_constructor("guievents",
1913                                   "/",
1914                                   "Insert Event Viewer",
1915                                   hGuiEventsInsert_xpm,
1916                                   "Insert Event Viewer",
1917                                   h_gui_events);
1918 }
1919
1920 void event_destroy_walk(gpointer data, gpointer user_data)
1921 {
1922   gui_events_destructor((LttvPluginEVD*)data);
1923 }
1924
1925 /**
1926  * plugin's destroy function
1927  *
1928  * This function releases the memory reserved by the module and unregisters
1929  * everything that has been registered in the gtkTraceSet API.
1930  */
1931 static void destroy() {
1932
1933   g_slist_foreach(g_event_viewer_data_list, event_destroy_walk, NULL );
1934   g_slist_free(g_event_viewer_data_list);
1935
1936   lttvwindow_unregister_constructor(h_gui_events);
1937
1938 }
1939
1940
1941
1942
1943 LTTV_MODULE("guievents", "Detailed events view", \
1944     "Graphical module to display a detailed event list", \
1945             init, destroy, "lttvwindow", "print")