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 <gdk/gdkx.h>
  53 #include <string.h>
  54
  55 #include <ltt/ltt.h>
  56 #include <ltt/event.h>
  57 #include <ltt/type.h>
  58 #include <ltt/trace.h>
  59 #include <ltt/facility.h>
  60 #include <lttv/module.h>
  61 #include <lttv/hook.h>
  62 #include <lttv/tracecontext.h>
  63 #include <lttv/state.h>
  64 #include <lttv/filter.h>
  65 #include <lttv/print.h>
  66 #include <lttvwindow/lttvwindow.h>
  67 #include <lttvwindow/lttvwindowtraces.h>
  68 #include <lttvwindow/lttv_plugin_tab.h>
  69 #include <lttvwindow/support.h>
  70 #include "lttv_plugin_evd.h"
  71
  72 #include "events.h"
  73 #include "hGuiEventsInsert.xpm"
  74
  75 #define g_info(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_INFO, format)
  76
  77 #ifndef g_debug
  78 #define g_debug(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, format)
  79 #endif
  80
  81 #define abs(a) (((a)<0)?(-a):(a))
  82 #define max(a,b) ((a)>(b)?(a):(b))
  83 #define min(a,b) ((a)<(b)?(a):(b))
  84
  85 /** Array containing instanced objects. Used when module is unloaded */
  86 static GSList *g_event_viewer_data_list = NULL ;
  87
  88 typedef enum _ScrollDirection{
  89   SCROLL_STEP_UP,
  90   SCROLL_STEP_DOWN,
  91   SCROLL_PAGE_UP,
  92   SCROLL_PAGE_DOWN,
  93   SCROLL_JUMP,
  94   SCROLL_NONE
  95 } ScrollDirection;
  96
  97 /** hook functions for update time interval, current time ... */
  98 gboolean update_current_time(void * hook_data, void * call_data);
  99 gboolean update_current_position(void * hook_data, void * call_data);
 100 //gboolean show_event_detail(void * hook_data, void * call_data);
 101 gboolean traceset_changed(void * hook_data, void * call_data);
 102 gboolean filter_changed(void * hook_data, void * call_data);
 103
 104 static void request_background_data(EventViewerData *event_viewer_data);
 105
 106 //! Event Viewer's constructor hook
 107 GtkWidget *h_gui_events(LttvPlugin *plugin);
 108 //! Event Viewer's constructor
 109 EventViewerData *gui_events(LttvPluginTab *ptab);
 110 //! Event Viewer's destructor
 111 void gui_events_destructor(gpointer data);
 112 void gui_events_free(gpointer data);
 113
 114 static gboolean
 115 header_size_allocate(GtkWidget *widget,
 116                         GtkAllocation *allocation,
 117                         gpointer user_data);
 118
 119 void tree_v_set_cursor(EventViewerData *event_viewer_data);
 120 void tree_v_get_cursor(EventViewerData *event_viewer_data);
 121
 122 /* Prototype for selection handler callback */
 123 static void tree_selection_changed_cb (GtkTreeSelection *selection,
 124     gpointer data);
 125 static void v_scroll_cb (GtkAdjustment *adjustment, gpointer data);
 126 static void tree_v_size_allocate_cb (GtkWidget *widget, GtkAllocation *alloc,
 127     gpointer data);
 128 static void tree_v_size_request_cb (GtkWidget *widget,
 129     GtkRequisition *requisition, gpointer data);
 130 static void tree_v_cursor_changed_cb (GtkWidget *widget, gpointer data);
 131 static void tree_v_move_cursor_cb (GtkWidget *widget, GtkMovementStep arg1,
 132     gint arg2, gpointer data);
 133 static void        filter_button      (GtkToolButton *toolbutton,
 134                                           gpointer       user_data);
 135 static gboolean tree_v_scroll_handler (GtkWidget *widget, GdkEventScroll *event, gpointer data);
 136 static gboolean key_handler(GtkWidget *widget, GdkEventKey *event,
 137     gpointer user_data);
 138
 139 static void get_events(double time, EventViewerData *event_viewer_data);
 140
 141 int event_hook(void *hook_data, void *call_data);
 142
 143 /* Enumeration of the columns */
 144 enum
 145 {
 146   TRACE_NAME_COLUMN,
 147   TRACEFILE_NAME_COLUMN,
 148   CPUID_COLUMN,
 149   EVENT_COLUMN,
 150   FACILITY_COLUMN,
 151   TIME_S_COLUMN,
 152   TIME_NS_COLUMN,
 153   PID_COLUMN,
 154   EVENT_DESCR_COLUMN,
 155   POSITION_COLUMN,
 156   N_COLUMNS
 157 };
 158
 159 /**
 160  * Event Viewer's constructor hook
 161  *
 162  * This constructor is given as a parameter to the menuitem and toolbar button
 163  * registration. It creates the list.
 164  * @param parent_window A pointer to the parent window.
 165  * @return The widget created.
 166  */
 167 GtkWidget *
 168 h_gui_events(LttvPlugin *plugin)
 169 {
 170   LttvPluginTab *ptab = LTTV_PLUGIN_TAB(plugin);
 171   EventViewerData* event_viewer_data = gui_events(ptab) ;
 172   if(event_viewer_data)
 173     return event_viewer_data->top_widget;
 174   else return NULL;
 175
 176 }
 177
 178 /**
 179  * Event Viewer's constructor
 180  *
 181  * This constructor is used to create EventViewerData data structure.
 182  * @return The Event viewer data created.
 183  */
 184 EventViewerData *
 185 gui_events(LttvPluginTab *ptab)
 186 {
 187   LttTime end;
 188   GtkTreeViewColumn *column;
 189   GtkCellRenderer *renderer;
 190   EventViewerData* event_viewer_data = g_new(EventViewerData,1);
 191   LttvPluginEVD *plugin_evd = g_object_new(LTTV_TYPE_PLUGIN_EVD, NULL);
 192   GtkTooltips *tooltips = gtk_tooltips_new();
 193   plugin_evd->evd = event_viewer_data;
 194   Tab *tab = ptab->tab;
 195   event_viewer_data->tab = tab;
 196   event_viewer_data->ptab = ptab;
 197   GtkWidget *tmp_toolbar_icon;
 198
 199   LttvTracesetContext * tsc =
 200         lttvwindow_get_traceset_context(event_viewer_data->tab);
 201
 202
 203   event_viewer_data->event_hooks = lttv_hooks_new();
 204   lttv_hooks_add(event_viewer_data->event_hooks,
 205                  event_hook,
 206                  event_viewer_data,
 207                  LTTV_PRIO_DEFAULT);
 208
 209   lttvwindow_register_current_time_notify(tab,
 210                 update_current_time,event_viewer_data);
 211   lttvwindow_register_current_position_notify(tab,
 212                 update_current_position,event_viewer_data);
 213   lttvwindow_register_traceset_notify(tab,
 214                 traceset_changed,event_viewer_data);
 215   lttvwindow_register_filter_notify(tab,
 216                 filter_changed, event_viewer_data);
 217   lttvwindow_register_redraw_notify(tab,
 218                 evd_redraw_notify, event_viewer_data);
 219
 220
 221   event_viewer_data->scroll_win = gtk_scrolled_window_new (NULL, NULL);
 222   gtk_widget_show (event_viewer_data->scroll_win);
 223   gtk_scrolled_window_set_policy(
 224       GTK_SCROLLED_WINDOW(event_viewer_data->scroll_win),
 225       GTK_POLICY_AUTOMATIC, GTK_POLICY_NEVER);
 226
 227   event_viewer_data->currently_selected_position =
 228     lttv_traceset_context_position_new(tsc);
 229   event_viewer_data->first_event =
 230     lttv_traceset_context_position_new(tsc);
 231   event_viewer_data->last_event =
 232     lttv_traceset_context_position_new(tsc);
 233
 234   event_viewer_data->main_win_filter = lttvwindow_get_filter(tab);
 235
 236   event_viewer_data->update_cursor = TRUE;
 237   event_viewer_data->report_position = TRUE;
 238
 239   event_viewer_data->last_tree_update_time = 0;
 240
 241   event_viewer_data->init_done = 0;
 242
 243   /* Create a model for storing the data list */
 244   event_viewer_data->store_m = gtk_list_store_new (
 245     N_COLUMNS,      /* Total number of columns     */
 246     G_TYPE_STRING,  /* Trace name                  */
 247     G_TYPE_STRING,  /* Tracefile name              */
 248     G_TYPE_UINT,    /* CPUID                       */
 249     G_TYPE_STRING,  /* Event                       */
 250     G_TYPE_STRING,  /* Facility                    */
 251     G_TYPE_UINT,    /* Time s                      */
 252     G_TYPE_UINT,    /* Time ns                     */
 253     G_TYPE_INT,     /* PID                         */
 254     G_TYPE_STRING,  /* Event's description         */
 255     G_TYPE_POINTER);/* Position (not shown)        */
 256
 257   event_viewer_data->pos = g_ptr_array_sized_new(10);
 258
 259   /* Create the viewer widget for the columned list */
 260   event_viewer_data->tree_v =
 261     gtk_tree_view_new_with_model (GTK_TREE_MODEL (event_viewer_data->store_m));
 262
 263   g_signal_connect (G_OBJECT (event_viewer_data->tree_v), "size-allocate",
 264         G_CALLBACK (tree_v_size_allocate_cb),
 265         event_viewer_data);
 266   g_signal_connect (G_OBJECT (event_viewer_data->tree_v), "size-request",
 267         G_CALLBACK (tree_v_size_request_cb),
 268         event_viewer_data);
 269
 270   g_signal_connect (G_OBJECT (event_viewer_data->tree_v), "cursor-changed",
 271         G_CALLBACK (tree_v_cursor_changed_cb),
 272         event_viewer_data);
 273
 274   g_signal_connect (G_OBJECT (event_viewer_data->tree_v), "move-cursor",
 275         G_CALLBACK (tree_v_move_cursor_cb),
 276         event_viewer_data);
 277
 278   g_signal_connect (G_OBJECT(event_viewer_data->tree_v), "key-press-event",
 279       G_CALLBACK(key_handler),
 280       event_viewer_data);
 281
 282   g_signal_connect (G_OBJECT(event_viewer_data->tree_v), "scroll-event",
 283       G_CALLBACK(tree_v_scroll_handler),
 284       event_viewer_data);
 285
 286
 287
 288   // Use on each column!
 289   //gtk_tree_view_column_set_sizing(event_viewer_data->tree_v,
 290   //GTK_TREE_VIEW_COLUMN_FIXED);
 291
 292   /* The view now holds a reference.  We can get rid of our own
 293    * reference */
 294   g_object_unref (G_OBJECT (event_viewer_data->store_m));
 295
 296
 297   /* Create a column, associating the "text" attribute of the
 298    * cell_renderer to the first column of the model */
 299   /* Columns alignment : 0.0 : Left    0.5 : Center   1.0 : Right */
 300   renderer = gtk_cell_renderer_text_new ();
 301   column = gtk_tree_view_column_new_with_attributes ("Trace",
 302                  renderer,
 303                  "text", TRACE_NAME_COLUMN,
 304                  NULL);
 305   gtk_tree_view_column_set_alignment (column, 0.0);
 306   gtk_tree_view_column_set_fixed_width (column, 120);
 307   gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->tree_v),
 308       column);
 309
 310   event_viewer_data->button = column->button;
 311
 312   g_signal_connect (G_OBJECT(event_viewer_data->button),
 313         "size-allocate",
 314         G_CALLBACK(header_size_allocate),
 315         (gpointer)event_viewer_data);
 316
 317
 318
 319   renderer = gtk_cell_renderer_text_new ();
 320   column = gtk_tree_view_column_new_with_attributes ("Tracefile",
 321                  renderer,
 322                  "text", TRACEFILE_NAME_COLUMN,
 323                  NULL);
 324   gtk_tree_view_column_set_alignment (column, 0.0);
 325   gtk_tree_view_column_set_fixed_width (column, 120);
 326   gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->tree_v),
 327       column);
 328
 329
 330   renderer = gtk_cell_renderer_text_new ();
 331   column = gtk_tree_view_column_new_with_attributes ("CPUID",
 332                  renderer,
 333                  "text", CPUID_COLUMN,
 334                  NULL);
 335   gtk_tree_view_column_set_alignment (column, 0.0);
 336   gtk_tree_view_column_set_fixed_width (column, 45);
 337   gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->tree_v),
 338       column);
 339
 340   renderer = gtk_cell_renderer_text_new ();
 341   column = gtk_tree_view_column_new_with_attributes ("Event",
 342                  renderer,
 343                  "text", EVENT_COLUMN,
 344                  NULL);
 345   gtk_tree_view_column_set_alignment (column, 0.0);
 346   gtk_tree_view_column_set_fixed_width (column, 120);
 347   gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->tree_v),
 348       column);
 349
 350   renderer = gtk_cell_renderer_text_new ();
 351   column = gtk_tree_view_column_new_with_attributes ("Facility",
 352                  renderer,
 353                  "text", FACILITY_COLUMN,
 354                  NULL);
 355   gtk_tree_view_column_set_alignment (column, 0.0);
 356   gtk_tree_view_column_set_fixed_width (column, 120);
 357   gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->tree_v),
 358       column);
 359
 360   renderer = gtk_cell_renderer_text_new ();
 361   column = gtk_tree_view_column_new_with_attributes ("Time (s)",
 362                  renderer,
 363                  "text", TIME_S_COLUMN,
 364                  NULL);
 365   gtk_tree_view_column_set_alignment (column, 1.0);
 366   gtk_tree_view_column_set_fixed_width (column, 120);
 367   gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->tree_v),
 368       column);
 369
 370   renderer = gtk_cell_renderer_text_new ();
 371   column = gtk_tree_view_column_new_with_attributes ("Time (ns)",
 372                  renderer,
 373                  "text", TIME_NS_COLUMN,
 374                  NULL);
 375   gtk_tree_view_column_set_alignment (column, 1.0);
 376   gtk_tree_view_column_set_fixed_width (column, 120);
 377   gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->tree_v),
 378       column);
 379
 380
 381   renderer = gtk_cell_renderer_text_new ();
 382   column = gtk_tree_view_column_new_with_attributes ("PID",
 383                  renderer,
 384                  "text", PID_COLUMN,
 385                  NULL);
 386   gtk_tree_view_column_set_alignment (column, 1.0);
 387   gtk_tree_view_column_set_fixed_width (column, 45);
 388   gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->tree_v),
 389       column);
 390
 391   renderer = gtk_cell_renderer_text_new ();
 392   column = gtk_tree_view_column_new_with_attributes ("Event Description",
 393                  renderer,
 394                  "text", EVENT_DESCR_COLUMN,
 395                  NULL);
 396   gtk_tree_view_column_set_alignment (column, 0.0);
 397   gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->tree_v),
 398       column);
 399
 400
 401   /* Setup the selection handler */
 402   event_viewer_data->select_c =
 403     gtk_tree_view_get_selection (GTK_TREE_VIEW (event_viewer_data->tree_v));
 404   gtk_tree_selection_set_mode (event_viewer_data->select_c,
 405       GTK_SELECTION_SINGLE);
 406   g_signal_connect (G_OBJECT (event_viewer_data->select_c), "changed",
 407         G_CALLBACK (tree_selection_changed_cb),
 408         event_viewer_data);
 409
 410   gtk_container_add (GTK_CONTAINER (event_viewer_data->scroll_win),
 411       event_viewer_data->tree_v);
 412
 413   event_viewer_data->hbox_v = gtk_hbox_new(0, 0);
 414   event_viewer_data->top_widget = event_viewer_data->hbox_v;
 415   plugin_evd->parent.top_widget = event_viewer_data->hbox_v;
 416
 417   event_viewer_data->toolbar = gtk_toolbar_new();
 418   gtk_toolbar_set_orientation(GTK_TOOLBAR(event_viewer_data->toolbar),
 419                               GTK_ORIENTATION_VERTICAL);
 420
 421   tmp_toolbar_icon = create_pixmap (main_window_get_widget(tab),
 422       "guifilter16x16.png");
 423   gtk_widget_show(tmp_toolbar_icon);
 424   event_viewer_data->button_filter = gtk_tool_button_new(tmp_toolbar_icon,
 425       "Filter");
 426   g_signal_connect (G_OBJECT(event_viewer_data->button_filter),
 427         "clicked",
 428         G_CALLBACK (filter_button),
 429         (gpointer)plugin_evd);
 430   gtk_tool_item_set_tooltip(GTK_TOOL_ITEM(event_viewer_data->button_filter),
 431       tooltips, "Open the filter window", NULL);
 432   gtk_toolbar_insert(GTK_TOOLBAR(event_viewer_data->toolbar),
 433       event_viewer_data->button_filter,
 434       0);
 435   gtk_toolbar_set_style(GTK_TOOLBAR(event_viewer_data->toolbar),
 436       GTK_TOOLBAR_ICONS);
 437   gtk_box_pack_start(GTK_BOX(event_viewer_data->hbox_v),
 438       event_viewer_data->toolbar, FALSE, FALSE, 0);
 439   event_viewer_data->filter = NULL;
 440
 441   gtk_box_pack_start(GTK_BOX(event_viewer_data->hbox_v),
 442       event_viewer_data->scroll_win, TRUE, TRUE, 0);
 443
 444   gtk_container_set_border_width(GTK_CONTAINER(event_viewer_data->hbox_v), 1);
 445
 446   /* Create vertical scrollbar and pack it */
 447   event_viewer_data->vscroll_vc = gtk_vscrollbar_new(NULL);
 448   gtk_range_set_update_policy (GTK_RANGE(event_viewer_data->vscroll_vc),
 449              GTK_UPDATE_CONTINUOUS);
 450              // Changed by MD : more user friendly :)
 451              //GTK_UPDATE_DISCONTINUOUS);
 452   gtk_box_pack_start(GTK_BOX(event_viewer_data->hbox_v),
 453       event_viewer_data->vscroll_vc, FALSE, TRUE, 0);
 454
 455   /* Get the vertical scrollbar's adjustment */
 456   event_viewer_data->vadjust_c =
 457     gtk_range_get_adjustment(GTK_RANGE(event_viewer_data->vscroll_vc));
 458   event_viewer_data->vtree_adjust_c = gtk_tree_view_get_vadjustment(
 459                     GTK_TREE_VIEW (event_viewer_data->tree_v));
 460
 461   g_signal_connect (G_OBJECT (event_viewer_data->vadjust_c), "value-changed",
 462         G_CALLBACK (v_scroll_cb),
 463         event_viewer_data);
 464   /* Set the upper bound to the last event number */
 465   event_viewer_data->previous_value = 0;
 466   event_viewer_data->vadjust_c->lower = 0.0;
 467     //event_viewer_data->vadjust_c->upper = event_viewer_data->number_of_events;
 468   LttTime time = lttvwindow_get_current_time(tab);
 469   time = ltt_time_sub(time, tsc->time_span.start_time);
 470   event_viewer_data->vadjust_c->value = ltt_time_to_double(time);
 471   event_viewer_data->vadjust_c->value = 0.0;
 472   event_viewer_data->vadjust_c->step_increment = 1.0;
 473   event_viewer_data->vadjust_c->page_increment = 2.0;
 474     //  event_viewer_data->vtree_adjust_c->upper;
 475   event_viewer_data->vadjust_c->page_size = 2.0;
 476   //    event_viewer_data->vtree_adjust_c->upper;
 477   /*  Raw event trace */
 478   gtk_widget_show(GTK_WIDGET(event_viewer_data->button_filter));
 479   gtk_widget_show(event_viewer_data->toolbar);
 480   gtk_widget_show(event_viewer_data->hbox_v);
 481   gtk_widget_show(event_viewer_data->tree_v);
 482   gtk_widget_show(event_viewer_data->vscroll_vc);
 483
 484   /* Add the object's information to the module's array */
 485   g_event_viewer_data_list = g_slist_append(g_event_viewer_data_list,
 486       plugin_evd);
 487
 488   event_viewer_data->num_visible_events = 1;
 489
 490   //get the life span of the traceset and set the upper of the scroll bar
 491
 492   TimeInterval time_span = tsc->time_span;
 493   end = ltt_time_sub(time_span.end_time, time_span.start_time);
 494
 495   event_viewer_data->vadjust_c->upper =
 496               ltt_time_to_double(end);
 497
 498   /* Set the Selected Event */
 499   //  tree_v_set_cursor(event_viewer_data);
 500
 501  // event_viewer_data->current_time_updated = FALSE;
 502  //
 503   g_object_set_data_full(
 504       G_OBJECT(event_viewer_data->hbox_v),
 505       "plugin_data",
 506       plugin_evd,
 507       (GDestroyNotify)gui_events_free);
 508
 509   g_object_set_data(
 510       G_OBJECT(event_viewer_data->hbox_v),
 511       "event_viewer_data",
 512       event_viewer_data);
 513
 514   event_viewer_data->background_info_waiting = 0;
 515
 516
 517   request_background_data(event_viewer_data);
 518
 519   return event_viewer_data;
 520 }
 521
 522
 523
 524 static gint background_ready(void *hook_data, void *call_data)
 525 {
 526   EventViewerData *event_viewer_data = (EventViewerData *)hook_data;
 527   LttvTrace *trace = (LttvTrace*)call_data;
 528
 529   event_viewer_data->background_info_waiting--;
 530
 531   if(event_viewer_data->background_info_waiting == 0) {
 532     g_message("event viewer : background computation data ready.");
 533
 534     evd_redraw_notify(event_viewer_data, NULL);
 535   }
 536
 537   return 0;
 538 }
 539
 540
 541 static void request_background_data(EventViewerData *event_viewer_data)
 542 {
 543   LttvTracesetContext * tsc =
 544         lttvwindow_get_traceset_context(event_viewer_data->tab);
 545   gint num_traces = lttv_traceset_number(tsc->ts);
 546   gint i;
 547   LttvTrace *trace;
 548   LttvTraceState *tstate;
 549
 550   LttvHooks *background_ready_hook =
 551     lttv_hooks_new();
 552   lttv_hooks_add(background_ready_hook, background_ready, event_viewer_data,
 553       LTTV_PRIO_DEFAULT);
 554   event_viewer_data->background_info_waiting = 0;
 555
 556   for(i=0;i<num_traces;i++) {
 557     trace = lttv_traceset_get(tsc->ts, i);
 558     tstate = LTTV_TRACE_STATE(tsc->traces[i]);
 559
 560     if(lttvwindowtraces_get_ready(g_quark_from_string("state"),trace)==FALSE
 561         && !tstate->has_precomputed_states) {
 562
 563       if(lttvwindowtraces_get_in_progress(g_quark_from_string("state"),
 564                                           trace) == FALSE) {
 565         /* We first remove requests that could have been done for the same
 566          * information. Happens when two viewers ask for it before servicing
 567          * starts.
 568          */
 569         if(!lttvwindowtraces_background_request_find(trace, "state"))
 570           lttvwindowtraces_background_request_queue(
 571               main_window_get_widget(event_viewer_data->tab), trace, "state");
 572         lttvwindowtraces_background_notify_queue(event_viewer_data,
 573                                                  trace,
 574                                                  ltt_time_infinite,
 575                                                  NULL,
 576                                                  background_ready_hook);
 577         event_viewer_data->background_info_waiting++;
 578       } else { /* in progress */
 579
 580         lttvwindowtraces_background_notify_current(event_viewer_data,
 581                                                    trace,
 582                                                    ltt_time_infinite,
 583                                                    NULL,
 584                                                    background_ready_hook);
 585         event_viewer_data->background_info_waiting++;
 586       }
 587     } else {
 588       /* Data ready. By its nature, this viewer doesn't need to have
 589        * its data ready hook called there, because a background
 590        * request is always linked with a redraw.
 591        */
 592     }
 593
 594   }
 595
 596   lttv_hooks_destroy(background_ready_hook);
 597
 598 }
 599
 600 static gboolean
 601 header_size_allocate(GtkWidget *widget,
 602                         GtkAllocation *allocation,
 603                         gpointer user_data)
 604 {
 605   EventViewerData *event_viewer_data = (EventViewerData*)user_data;
 606
 607   event_viewer_data->header_height = allocation->height;
 608
 609   return 0;
 610 }
 611
 612
 613 void tree_v_set_cursor(EventViewerData *event_viewer_data)
 614 {
 615   GtkTreePath *path;
 616
 617   g_debug("set cursor cb");
 618
 619 #if 0
 620   if(event_viewer_data->currently_selected_event != -1)
 621     {
 622       path = gtk_tree_path_new_from_indices(
 623               event_viewer_data->currently_selected_event,
 624               -1);
 625
 626       gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
 627           path, NULL, FALSE);
 628       gtk_tree_path_free(path);
 629     }
 630 #endif //0
 631 }
 632
 633 void tree_v_get_cursor(EventViewerData *event_viewer_data)
 634 {
 635   GtkTreePath *path;
 636   gint *indices;
 637
 638   g_debug("get cursor cb");
 639
 640
 641 #if 0
 642   gtk_tree_view_get_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
 643       &path, NULL);
 644   indices = gtk_tree_path_get_indices(path);
 645
 646   if(indices != NULL)
 647       event_viewer_data->currently_selected_event = indices[0];
 648     else
 649       event_viewer_data->currently_selected_event = -1;
 650
 651   gtk_tree_path_free(path);
 652 #endif //0
 653 }
 654
 655 /* Filter out the key repeats that come too fast */
 656 static gboolean key_handler(GtkWidget *widget, GdkEventKey *event,
 657     gpointer user_data)
 658 {
 659   EventViewerData *evd = (EventViewerData *)user_data;
 660
 661   g_debug("event time : %u , last time : %u", event->time,
 662       evd->last_tree_update_time);
 663
 664   if(guint32_before(event->time, evd->last_tree_update_time))
 665     return TRUE;
 666   else
 667     return FALSE;
 668 }
 669
 670 void tree_v_move_cursor_cb (GtkWidget *widget,
 671                             GtkMovementStep arg1,
 672                             gint arg2,
 673                             gpointer data)
 674 {
 675   GtkTreePath *path; // = gtk_tree_path_new();
 676   gint *indices;
 677   gdouble value;
 678   EventViewerData *event_viewer_data = (EventViewerData*)data;
 679
 680   g_debug("move cursor cb");
 681   //gtk_tree_view_get_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
 682   //                          &path, NULL);
 683   //if(path == NULL)
 684   //{
 685     /* No prior cursor, put it at beginning of page
 686      * and let the execution do */
 687   //  path = gtk_tree_path_new_from_indices(0, -1);
 688   //  gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
 689   //                              path, NULL, FALSE);
 690   //}
 691
 692   //indices = gtk_tree_path_get_indices(path);
 693
 694   //value = gtk_adjustment_get_value(event_viewer_data->vadjust_c);
 695
 696   /* If events request pending, do nothing*/
 697   if(lttvwindow_events_request_pending(event_viewer_data->tab)) return;
 698
 699   /* If no prior position... */
 700 #if 0
 701   if(ltt_time_compare(
 702         lttv_traceset_context_position_get_time(
 703           event_viewer_data->currently_selected_position),
 704         ltt_time_infinite) == 0) {
 705
 706     path = gtk_tree_path_new_from_indices(0, -1);
 707     gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
 708                                 path, NULL, FALSE);
 709
 710     gtk_tree_path_free(path);
 711     return;
 712
 713   }
 714 #endif //0
 715
 716   g_debug("tree view move cursor : arg1 is %u and arg2 is %d",
 717       (guint)arg1, arg2);
 718
 719   switch(arg1) {
 720   case GTK_MOVEMENT_DISPLAY_LINES:
 721     if(arg2 == 1) {
 722       /* Move one line down */
 723       if(event_viewer_data->pos->len > 0) {
 724         LttvTracesetContextPosition *end_pos =
 725           (LttvTracesetContextPosition*)g_ptr_array_index(
 726                                              event_viewer_data->pos,
 727                                              event_viewer_data->pos->len-1);
 728         if(lttv_traceset_context_pos_pos_compare(end_pos,
 729               event_viewer_data->currently_selected_position) == 0) {
 730           /* Must get down one event and select the last one */
 731           gtk_tree_selection_unselect_all(gtk_tree_view_get_selection(
 732                 GTK_TREE_VIEW(event_viewer_data->tree_v)));
 733                                         event_viewer_data->update_cursor = FALSE;
 734                                         gtk_adjustment_set_value(event_viewer_data->vadjust_c,
 735                                                         gtk_adjustment_get_value(event_viewer_data->vadjust_c) + 1);
 736                                         event_viewer_data->update_cursor = TRUE;
 737                                         if(event_viewer_data->pos->len > 0) {
 738                                                 path = gtk_tree_path_new_from_indices(
 739                                                                 max(0, event_viewer_data->pos->len - 1), -1);
 740                                                 if(path) {
 741                                                         gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
 742                                                                                                                                                          path, NULL, FALSE);
 743                                                         gtk_tree_path_free(path);
 744                                                 }
 745                                         }
 746                                 }
 747                         } else {
 748                                 /* Must get down one event and select the last one */
 749                                 gtk_tree_selection_unselect_all(gtk_tree_view_get_selection(
 750                                                         GTK_TREE_VIEW(event_viewer_data->tree_v)));
 751                                 event_viewer_data->update_cursor = FALSE;
 752                                 gtk_adjustment_set_value(event_viewer_data->vadjust_c,
 753                                                 gtk_adjustment_get_value(event_viewer_data->vadjust_c) + 1);
 754                                 event_viewer_data->update_cursor = TRUE;
 755                                 if(event_viewer_data->pos->len > 0) {
 756                                         path = gtk_tree_path_new_from_indices(
 757                                                         max(0, event_viewer_data->pos->len - 1), -1);
 758                                         if(path) {
 759                                                 gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
 760                                                                                                                                                  path, NULL, FALSE);
 761                                                 gtk_tree_path_free(path);
 762                                         }
 763                                 }
 764                         }
 765
 766     } else {
 767       if(event_viewer_data->pos->len > 0) {
 768         /* Move one line up */
 769         LttvTracesetContextPosition *begin_pos =
 770           (LttvTracesetContextPosition*)g_ptr_array_index(
 771                                              event_viewer_data->pos,
 772                                              0);
 773         if(lttv_traceset_context_pos_pos_compare(begin_pos,
 774               event_viewer_data->currently_selected_position) == 0) {
 775           /* Must get up one event and select the first one */
 776           gtk_tree_selection_unselect_all(gtk_tree_view_get_selection(
 777                 GTK_TREE_VIEW(event_viewer_data->tree_v)));
 778                                         event_viewer_data->update_cursor = FALSE;
 779                                         gtk_adjustment_set_value(event_viewer_data->vadjust_c,
 780                                                         gtk_adjustment_get_value(event_viewer_data->vadjust_c) - 1);
 781                                         event_viewer_data->update_cursor = TRUE;
 782                                         if(event_viewer_data->pos->len > 0) {
 783                                                 path = gtk_tree_path_new_from_indices(
 784                                                                 0, -1);
 785                                                 if(path) {
 786                                                         gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
 787                                                                                                                                                          path, NULL, FALSE);
 788                                                         gtk_tree_path_free(path);
 789                                                 }
 790                                         }
 791                                 }
 792                         } else {
 793                                 /* Must get up one event and select the first one */
 794                                 gtk_tree_selection_unselect_all(gtk_tree_view_get_selection(
 795                                                         GTK_TREE_VIEW(event_viewer_data->tree_v)));
 796                                 event_viewer_data->update_cursor = FALSE;
 797                                 gtk_adjustment_set_value(event_viewer_data->vadjust_c,
 798                                                 gtk_adjustment_get_value(event_viewer_data->vadjust_c) - 1);
 799                                 event_viewer_data->update_cursor = TRUE;
 800                                 if(event_viewer_data->pos->len > 0) {
 801                                         path = gtk_tree_path_new_from_indices(
 802                                                         0, -1);
 803                                         if(path) {
 804                                                 gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
 805                                                                                                                                                  path, NULL, FALSE);
 806                                                 gtk_tree_path_free(path);
 807                                         }
 808                                 }
 809                         }
 810     }
 811     break;
 812   case GTK_MOVEMENT_PAGES:
 813     if(arg2 == 1) {
 814       /* Move one page down */
 815       if(event_viewer_data->pos->len > 0) {
 816         LttvTracesetContextPosition *end_pos =
 817           (LttvTracesetContextPosition*)g_ptr_array_index(
 818                                              event_viewer_data->pos,
 819                                              event_viewer_data->pos->len-1);
 820         if(lttv_traceset_context_pos_pos_compare(end_pos,
 821               event_viewer_data->currently_selected_position) == 0) {
 822           /* Must get down one page and select the last one */
 823           gtk_tree_selection_unselect_all(gtk_tree_view_get_selection(
 824                 GTK_TREE_VIEW(event_viewer_data->tree_v)));
 825                                         event_viewer_data->update_cursor = FALSE;
 826                                         gtk_adjustment_set_value(event_viewer_data->vadjust_c,
 827                                                         gtk_adjustment_get_value(event_viewer_data->vadjust_c) + 2);
 828                                         event_viewer_data->update_cursor = TRUE;
 829                                         if(event_viewer_data->pos->len > 0) {
 830                                                 path = gtk_tree_path_new_from_indices(
 831                                                                 event_viewer_data->pos->len - 1, -1);
 832                                                 if(path) {
 833                                                         gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
 834                                                                                                                                                          path, NULL, FALSE);
 835                                                         gtk_tree_path_free(path);
 836                                                 }
 837                                         }
 838                                 }
 839                         } else {
 840                         /* Must get down one page and select the last one */
 841                                 gtk_tree_selection_unselect_all(gtk_tree_view_get_selection(
 842                                                         GTK_TREE_VIEW(event_viewer_data->tree_v)));
 843                                 event_viewer_data->update_cursor = FALSE;
 844                                 gtk_adjustment_set_value(event_viewer_data->vadjust_c,
 845                                                 gtk_adjustment_get_value(event_viewer_data->vadjust_c) + 2);
 846                                 event_viewer_data->update_cursor = TRUE;
 847                                 if(event_viewer_data->pos->len > 0) {
 848                                         path = gtk_tree_path_new_from_indices(
 849                                                         event_viewer_data->pos->len - 1, -1);
 850                                         if(path) {
 851                                                 gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
 852                                                                                                                                                  path, NULL, FALSE);
 853                                                 gtk_tree_path_free(path);
 854                                         }
 855                                 }
 856                         }
 857     } else {
 858       /* Move one page up */
 859       if(event_viewer_data->pos->len > 0) {
 860         LttvTracesetContextPosition *begin_pos =
 861           (LttvTracesetContextPosition*)g_ptr_array_index(
 862                                              event_viewer_data->pos,
 863                                              0);
 864         if(lttv_traceset_context_pos_pos_compare(begin_pos,
 865               event_viewer_data->currently_selected_position) == 0) {
 866           /* Must get up one page and select the first one */
 867           gtk_tree_selection_unselect_all(gtk_tree_view_get_selection(
 868                 GTK_TREE_VIEW(event_viewer_data->tree_v)));
 869                                         event_viewer_data->update_cursor = FALSE;
 870                                         gtk_adjustment_set_value(event_viewer_data->vadjust_c,
 871                                                         gtk_adjustment_get_value(event_viewer_data->vadjust_c) - 2);
 872                                         event_viewer_data->update_cursor = TRUE;
 873                                         if(event_viewer_data->pos->len > 0) {
 874                                                 path = gtk_tree_path_new_from_indices(
 875                                                                 0, -1);
 876                                                 if(path) {
 877                                                         gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
 878                                                                                                                                                          path, NULL, FALSE);
 879                                                         gtk_tree_path_free(path);
 880                                                 }
 881                                         }
 882                                 }
 883                         }       else {
 884                                 /* Must get up one page and select the first one */
 885                                 gtk_tree_selection_unselect_all(gtk_tree_view_get_selection(
 886                                                         GTK_TREE_VIEW(event_viewer_data->tree_v)));
 887                                 event_viewer_data->update_cursor = FALSE;
 888                                 gtk_adjustment_set_value(event_viewer_data->vadjust_c,
 889                                                 gtk_adjustment_get_value(event_viewer_data->vadjust_c) - 2);
 890                                 event_viewer_data->update_cursor = TRUE;
 891                                 if(event_viewer_data->pos->len > 0) {
 892                                         path = gtk_tree_path_new_from_indices(
 893                                                         0, -1);
 894                                         if(path) {
 895                                                 gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
 896                                                                                                                                                  path, NULL, FALSE);
 897                                                 gtk_tree_path_free(path);
 898                                         }
 899                                 }
 900                         }
 901     }
 902     break;
 903   default:
 904     break;
 905   }
 906
 907   //gtk_tree_path_free(path);
 908
 909 #if 0
 910   if(arg1 == GTK_MOVEMENT_DISPLAY_LINES)
 911   {
 912     /* Move one line */
 913     if(arg2 == 1)
 914     {
 915       /* move one line down */
 916       if(indices[0]) // Do we need an empty field here (before first)?
 917       {
 918         if(value + event_viewer_data->num_visible_events <=
 919             event_viewer_data->number_of_events -1)
 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(event_viewer_data->num_visible_events-1, -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     } else {
 930       /* Move one line up */
 931       if(indices[0] == 0)
 932       {
 933         if(value - 1 >= 0 )
 934         {
 935           event_viewer_data->currently_selected_event -= 1;
 936           //      gtk_adjustment_set_value(event_viewer_data->vadjust_c, value-1);
 937           //gtk_tree_path_free(path);
 938           //path = gtk_tree_path_new_from_indices(0, -1);
 939           //gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v), path, NULL, FALSE);
 940           g_signal_stop_emission_by_name(G_OBJECT(widget), "move-cursor");
 941         }
 942       }
 943     }
 944   }
 945
 946   if(arg1 == GTK_MOVEMENT_PAGES)
 947   {
 948     /* Move one page */
 949     if(arg2 == 1)
 950     {
 951       if(event_viewer_data->num_visible_events == 1)
 952         value += 1 ;
 953       /* move one page down */
 954       if(value + event_viewer_data->num_visible_events-1 <=
 955                       event_viewer_data->number_of_events )
 956       {
 957         event_viewer_data->currently_selected_event +=
 958                                   event_viewer_data->num_visible_events-1;
 959         //        gtk_adjustment_set_value(event_viewer_data->vadjust_c,
 960         //               value+(event_viewer_data->num_visible_events-1));
 961         //gtk_tree_path_free(path);
 962         //path = gtk_tree_path_new_from_indices(0, -1);
 963         //gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v), path, NULL, FALSE);
 964         g_signal_stop_emission_by_name(G_OBJECT(widget), "move-cursor");
 965       }
 966     } else {
 967       /* Move one page up */
 968       if(event_viewer_data->num_visible_events == 1)
 969         value -= 1 ;
 970
 971       if(indices[0] < event_viewer_data->num_visible_events - 2 )
 972       {
 973         if(value - (event_viewer_data->num_visible_events-1) >= 0)
 974         {
 975           event_viewer_data->currently_selected_event -=
 976                           event_viewer_data->num_visible_events-1;
 977
 978           //      gtk_adjustment_set_value(event_viewer_data->vadjust_c,
 979           //             value-(event_viewer_data->num_visible_events-1));
 980           //gtk_tree_path_free(path);
 981           //path = gtk_tree_path_new_from_indices(0, -1);
 982           //gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v), path, NULL, FALSE);
 983           g_signal_stop_emission_by_name(G_OBJECT(widget), "move-cursor");
 984
 985         } else {
 986           /* Go to first Event */
 987           event_viewer_data->currently_selected_event == 0 ;
 988           //      gtk_adjustment_set_value(event_viewer_data->vadjust_c,
 989           //             0);
 990           //gtk_tree_path_free(path);
 991           //path = gtk_tree_path_new_from_indices(0, -1);
 992           //gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v), path, NULL, FALSE);
 993           g_signal_stop_emission_by_name(G_OBJECT(widget), "move-cursor");
 994
 995         }
 996       }
 997     }
 998   }
 999
1000   if(arg1 == GTK_MOVEMENT_BUFFER_ENDS)
1001   {
1002     /* Move to the ends of the buffer */
1003     if(arg2 == 1)
1004     {
1005       /* move end of buffer */
1006       event_viewer_data->currently_selected_event =
1007                             event_viewer_data->number_of_events-1 ;
1008       //    gtk_adjustment_set_value(event_viewer_data->vadjust_c,
1009       //           event_viewer_data->number_of_events -
1010       //           event_viewer_data->num_visible_events);
1011       //gtk_tree_path_free(path);
1012       //path = gtk_tree_path_new_from_indices(event_viewer_data->num_visible_events-1, -1);
1013       //gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v), path, NULL, FALSE);
1014       g_signal_stop_emission_by_name(G_OBJECT(widget), "move-cursor");
1015     } else {
1016       /* Move beginning of buffer */
1017       event_viewer_data->currently_selected_event = 0 ;
1018       //    gtk_adjustment_set_value(event_viewer_data->vadjust_c, 0);
1019         //gtk_tree_path_free(path);
1020         //path = gtk_tree_path_new_from_indices(0, -1);
1021         //gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v), path, NULL, FALSE);
1022       g_signal_stop_emission_by_name(G_OBJECT(widget), "move-cursor");
1023     }
1024   }
1025 #endif //0
1026 }
1027
1028 static void        filter_button      (GtkToolButton *toolbutton,
1029                                           gpointer       user_data)
1030 {
1031   LttvPluginEVD *plugin_evd = (LttvPluginEVD*)user_data;
1032   LttvAttribute *attribute;
1033   LttvAttributeValue value;
1034   gboolean ret;
1035   g_printf("Filter button clicked\n");
1036
1037   attribute = LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(
1038         LTTV_IATTRIBUTE(lttv_global_attributes()),
1039         LTTV_VIEWER_CONSTRUCTORS));
1040   g_assert(attribute);
1041
1042   ret = lttv_iattribute_find_by_path(LTTV_IATTRIBUTE(attribute),
1043       "guifilter", LTTV_POINTER, &value);
1044   g_assert(ret);
1045   lttvwindow_viewer_constructor constructor =
1046     (lttvwindow_viewer_constructor)*(value.v_pointer);
1047   if(constructor) constructor(&plugin_evd->parent);
1048   else g_warning("Filter module not loaded.");
1049
1050   //FIXME : viewer returned.
1051 }
1052
1053 gboolean tree_v_scroll_handler (GtkWidget *widget, GdkEventScroll *event, gpointer data)
1054 {
1055         EventViewerData *event_viewer_data = (EventViewerData*) data;
1056         Tab *tab = event_viewer_data->tab;
1057
1058         switch(event->direction) {
1059                 case GDK_SCROLL_UP:
1060                         gtk_adjustment_set_value(event_viewer_data->vadjust_c,
1061                                 gtk_adjustment_get_value(event_viewer_data->vadjust_c) - 1);
1062                         break;
1063                 case GDK_SCROLL_DOWN:
1064                         gtk_adjustment_set_value(event_viewer_data->vadjust_c,
1065                                 gtk_adjustment_get_value(event_viewer_data->vadjust_c) + 1);
1066                         break;
1067                 default:
1068                         g_error("Only scroll up and down expected");
1069         }
1070         return TRUE;
1071 }
1072
1073 void tree_v_cursor_changed_cb (GtkWidget *widget, gpointer data)
1074 {
1075   EventViewerData *event_viewer_data = (EventViewerData*) data;
1076   Tab *tab = event_viewer_data->tab;
1077   GtkTreeIter iter;
1078   GtkTreeModel* model = GTK_TREE_MODEL(event_viewer_data->store_m);
1079   GtkTreePath *path;
1080   LttvTracesetContextPosition *pos;
1081
1082   g_debug("cursor changed cb");
1083
1084   /* On cursor change, modify the currently selected event by calling
1085    * the right API function */
1086   if(event_viewer_data->report_position) {
1087     if(event_viewer_data->pos->len > 0) {
1088                         gtk_tree_view_get_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
1089                                         &path, NULL);
1090                         if(path) {
1091                                 if(gtk_tree_model_get_iter(model,&iter,path)){
1092                                         gtk_tree_model_get(model, &iter, POSITION_COLUMN, &pos, -1);
1093
1094                                         if(lttv_traceset_context_pos_pos_compare(pos,
1095                                                                 event_viewer_data->currently_selected_position) != 0)
1096                                                 lttvwindow_report_current_position(tab, pos);
1097                                 }else{
1098                                         g_warning("Can not get iter\n");
1099                                 }
1100                                 gtk_tree_path_free(path);
1101                         }
1102                 }
1103         }
1104 }
1105
1106
1107 static void tree_selection_changed_cb (GtkTreeSelection *selection,
1108     gpointer data)
1109 {
1110   g_debug("tree sel changed cb");
1111   EventViewerData *event_viewer_data = (EventViewerData*) data;
1112
1113 #if 0
1114     /* Set the cursor to currently selected event */
1115   GtkTreeModel* model = GTK_TREE_MODEL(event_viewer_data->store_m);
1116   GtkTreeIter iter;
1117   LttvTracesetContextPosition *pos;
1118   guint i;
1119   GtkTreePath *tree_path;
1120
1121   for(i=0;i<event_viewer_data->num_visible_events;i++) {
1122     tree_path = gtk_tree_path_new_from_indices(
1123                 i,
1124                -1);
1125     if(gtk_tree_model_get_iter(model,&iter,tree_path)){
1126       gtk_tree_model_get(model, &iter, POSITION_COLUMN, &pos, -1);
1127
1128       if(lttv_traceset_context_pos_pos_compare(pos,
1129             event_viewer_data->currently_selected_position) == 0) {
1130         /* Match! */
1131             gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
1132                 tree_path, NULL, FALSE);
1133         break;
1134       }
1135
1136     }else{
1137       g_warning("Can not get iter\n");
1138     }
1139    gtk_tree_path_free(tree_path);
1140   }
1141 #endif //0
1142 }
1143
1144 #if 0
1145 static gint key_snooper(GtkWidget *grab_widget, GdkEventKey *event,
1146     gpointer func_data)
1147 {
1148   return TRUE;
1149 }
1150 #endif //0
1151
1152 /* This callback may be recalled after a step up/down, but we don't want to lose
1153  * the exact position : what we do is that we only set the value if it has
1154  * changed : a step up/down that doesn't change the time value of the first
1155  * event won't trigger a scrollbar change. */
1156
1157 void v_scroll_cb (GtkAdjustment *adjustment, gpointer data)
1158 {
1159   EventViewerData *event_viewer_data = (EventViewerData*)data;
1160   LttvTracesetStats *tss =
1161     lttvwindow_get_traceset_stats(event_viewer_data->tab);
1162   LttvTracesetContext *tsc = (LttvTracesetContext*)tss;
1163   g_debug("SCROLL begin");
1164   g_debug("SCROLL values : %g , %g, %g",
1165       adjustment->value, event_viewer_data->previous_value,
1166       (adjustment->value - event_viewer_data->previous_value));
1167
1168   LttTime new_time_off = ltt_time_from_double(adjustment->value);
1169   LttTime old_time_off = ltt_time_from_double(event_viewer_data->previous_value);
1170   g_debug("SCROLL time values %lu.%lu, %lu.%lu", new_time_off.tv_sec,
1171       new_time_off.tv_nsec, old_time_off.tv_sec, old_time_off.tv_nsec);
1172   /* If same value : nothing to update */
1173   if(ltt_time_compare(new_time_off, old_time_off) == 0)
1174     return;
1175
1176   //LttTime old_time = event_viewer_data->first_event;
1177
1178
1179   //gint snoop = gtk_key_snooper_install(key_snooper, NULL);
1180
1181   get_events(adjustment->value, event_viewer_data);
1182
1183   //gtk_key_snooper_remove(snoop);
1184 #if 0
1185   LttTime time = ltt_time_sub(event_viewer_data->first_event,
1186                               tsc->time_span.start_time);
1187   double value = ltt_time_to_double(time);
1188   gtk_adjustment_set_value(event_viewer_data->vadjust_c, value);
1189
1190   if(event_viewer_data->currently_selected_event != -1) {
1191
1192       tree_path = gtk_tree_path_new_from_indices(
1193              event_viewer_data->currently_selected_event,
1194              -1);
1195
1196       //      gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v), tree_path,
1197       //             NULL, FALSE);
1198       gtk_tree_path_free(tree_path);
1199   }
1200 #endif //0
1201   g_debug("SCROLL end");
1202 }
1203
1204 static __inline gint get_cell_height(GtkTreeView *TreeView)
1205 {
1206   gint height;
1207   GtkTreeViewColumn *column = gtk_tree_view_get_column(TreeView, 0);
1208
1209   gtk_tree_view_column_cell_get_size(column, NULL, NULL, NULL, NULL, &height);
1210
1211   gint vertical_separator;
1212   gtk_widget_style_get (GTK_WIDGET (TreeView),
1213       "vertical-separator", &vertical_separator,
1214       NULL);
1215
1216         height += vertical_separator;
1217
1218   return height;
1219 }
1220
1221 void tree_v_size_allocate_cb (GtkWidget *widget, GtkAllocation *alloc, gpointer data)
1222 {
1223   EventViewerData *event_viewer_data = (EventViewerData*)data;
1224   gint cell_height = get_cell_height(GTK_TREE_VIEW(event_viewer_data->tree_v));
1225   gint last_num_visible_events = event_viewer_data->num_visible_events;
1226   gdouble exact_num_visible;
1227
1228   exact_num_visible = ( alloc->height -
1229           event_viewer_data->header_height )
1230             / (double)cell_height ;
1231
1232   event_viewer_data->num_visible_events = ceil(exact_num_visible) ;
1233
1234 /*
1235   event_viewer_data->vadjust_c->page_increment =
1236     floor(exact_num_visible);
1237   event_viewer_data->vadjust_c->page_size =
1238     floor(exact_num_visible);
1239 */
1240
1241   g_debug("size allocate %p : last_num_visible_events : %d",
1242            event_viewer_data, last_num_visible_events);
1243   g_debug("num_visible_events : %d, value %lu",
1244            event_viewer_data->num_visible_events,
1245            event_viewer_data->vadjust_c->value);
1246
1247   if(event_viewer_data->num_visible_events != last_num_visible_events) {
1248       get_events(event_viewer_data->vadjust_c->value, event_viewer_data);
1249   }
1250
1251
1252 }
1253
1254 void tree_v_size_request_cb (GtkWidget *widget, GtkRequisition *requisition, gpointer data)
1255 {
1256   gint h;
1257   EventViewerData *event_viewer_data = (EventViewerData*)data;
1258   gint cell_height = get_cell_height(GTK_TREE_VIEW(event_viewer_data->tree_v));
1259
1260   h = cell_height + event_viewer_data->header_height;
1261   requisition->height = h;
1262
1263 }
1264
1265 #if 0
1266 gboolean show_event_detail(void * hook_data, void * call_data)
1267 {
1268   EventViewerData *event_viewer_data = (EventViewerData*) hook_data;
1269   LttvTracesetContext * tsc = lttvwindow_get_traceset_context(event_viewer_data->tab);
1270
1271   if(event_viewer_data->event_fields_queue_tmp->length == 0 &&
1272      event_viewer_data->event_fields_queue->length == 0){
1273     event_viewer_data->shown = FALSE;
1274     return FALSE;
1275   }
1276
1277   if(event_viewer_data->shown == FALSE){
1278     event_viewer_data->shown = TRUE;
1279     update_raw_data_array(event_viewer_data,
1280         event_viewer_data->event_fields_queue_tmp->length);
1281
1282     get_data(event_viewer_data->vadjust_c->value,
1283       event_viewer_data->num_visible_events,
1284       event_viewer_data);
1285
1286     remove_context_hooks(event_viewer_data,tsc);
1287   }
1288
1289   return FALSE;
1290 }
1291 #endif //0
1292
1293 static gboolean events_check_handler(guint count, gboolean *stop_flag,
1294   gpointer data)
1295 {
1296   EventViewerData *evd = (EventViewerData*)data;
1297   if(count % CHECK_GDK_INTERVAL == 0) {
1298     GdkEvent *event;
1299     GtkWidget *widget;
1300     while((event = gdk_event_get()) != NULL) {
1301         widget = gtk_get_event_widget(event);
1302         if(widget ==
1303           lookup_widget(main_window_get_widget(evd->tab),
1304               "StopProcessingButton")
1305           || widget == evd->vscroll_vc) {
1306           gtk_main_do_event(event);
1307           gdk_window_process_all_updates();
1308         }
1309         gdk_event_free(event);
1310     }
1311     if(*stop_flag)
1312       return TRUE;
1313     else
1314       return FALSE;
1315   } else return FALSE;
1316 }
1317
1318 static void get_events(double new_value, EventViewerData *event_viewer_data)
1319 {
1320   GtkTreePath *tree_path;
1321   LttvTracesetStats *tss =
1322     lttvwindow_get_traceset_stats(event_viewer_data->tab);
1323   LttvTracesetContext *tsc = (LttvTracesetContext*)tss;
1324   guint i;
1325   gboolean seek_by_time;
1326
1327   if(lttvwindow_preempt_count > 0) return;
1328
1329   double value = new_value - event_viewer_data->previous_value;
1330
1331   /* Set stop button status for foreground processing */
1332   event_viewer_data->tab->stop_foreground = FALSE;
1333   lttvwindow_events_request_disable();
1334
1335   /* See where we have to scroll... */
1336   ScrollDirection direction;
1337   gint relative_position;
1338
1339   if(value < -0.8) {
1340     if(value >= -1.0) direction = SCROLL_STEP_UP;
1341     else {
1342       if(value >= -2.0) direction = SCROLL_PAGE_UP;
1343       else direction = SCROLL_JUMP;
1344     }
1345   } else if(value > 0.8) {
1346     if(value <= 1.0) direction = SCROLL_STEP_DOWN;
1347     else {
1348       if(value <= 2.0) direction = SCROLL_PAGE_DOWN;
1349       else direction = SCROLL_JUMP;
1350     }
1351   } else direction = SCROLL_NONE; /* 0.0 */
1352
1353
1354   switch(direction) {
1355   case SCROLL_STEP_UP:
1356     g_debug("get_events : SCROLL_STEP_UP");
1357     relative_position = -1;
1358     seek_by_time = 0;
1359     break;
1360   case SCROLL_STEP_DOWN:
1361     g_debug("get_events : SCROLL_STEP_DOWN");
1362     relative_position = 1;
1363     seek_by_time = 0;
1364     break;
1365   case SCROLL_PAGE_UP:
1366     g_debug("get_events : SCROLL_PAGE_UP");
1367     relative_position = -(event_viewer_data->num_visible_events);
1368     seek_by_time = 0;
1369     break;
1370   case SCROLL_PAGE_DOWN:
1371     g_debug("get_events : SCROLL_PAGE_DOWN");
1372     relative_position = event_viewer_data->num_visible_events;
1373     seek_by_time = 0;
1374     break;
1375   case SCROLL_JUMP:
1376     g_debug("get_events : SCROLL_JUMP");
1377     seek_by_time = 1;
1378     break;
1379   case SCROLL_NONE:
1380     g_debug("get_events : SCROLL_NONE");
1381     relative_position = 0;
1382     seek_by_time = 0;
1383     break;
1384   }
1385
1386   LttTime time = ltt_time_from_double(new_value);
1387   time = ltt_time_add(tsc->time_span.start_time, time);
1388
1389   if(!seek_by_time) {
1390
1391     LttvTracesetContextPosition *pos =
1392         lttv_traceset_context_position_new(tsc);
1393
1394     /* Remember the beginning position */
1395     if(event_viewer_data->pos->len > 0) {
1396       LttvTracesetContextPosition *first_pos =
1397         (LttvTracesetContextPosition*)g_ptr_array_index(
1398                                                     event_viewer_data->pos,
1399                                                     0);
1400       lttv_traceset_context_position_copy(pos, first_pos);
1401
1402       if(relative_position >= 0) {
1403         LttTime first_event_time =
1404             lttv_traceset_context_position_get_time(
1405                               pos);
1406         lttv_state_traceset_seek_time_closest((LttvTracesetState*)tsc,
1407           first_event_time);
1408         lttv_process_traceset_middle(tsc, ltt_time_infinite,
1409                                    G_MAXUINT,
1410                                    pos);
1411
1412       } else if(relative_position < 0) {
1413         g_assert(lttv_process_traceset_seek_position(tsc, pos) == 0);
1414       }
1415     } else {
1416       /* There is nothing in the list : simply seek to the time value. */
1417       lttv_state_traceset_seek_time_closest((LttvTracesetState*)tsc,
1418           time);
1419       lttv_process_traceset_middle(tsc, time, G_MAXUINT,
1420                                    NULL);
1421     }
1422
1423   /* Note that, as we mess with the tsc position, this function CANNOT be called
1424    * from a hook inside the lttv_process_traceset_middle. */
1425   /* As the lttvwindow API keeps a sync_position inside the tsc to go back at
1426    * the right spot after being interrupted, it's ok to change the tsc position,
1427    * as long as we do not touch the sync_position. */
1428
1429   /* Get the beginning position of the read (with seek backward or seek forward)
1430    */
1431     if(relative_position > 0) {
1432       guint count;
1433       count += lttv_process_traceset_seek_n_forward(tsc, relative_position,
1434           events_check_handler,
1435           &event_viewer_data->tab->stop_foreground,
1436           event_viewer_data->main_win_filter,
1437           event_viewer_data->filter, NULL, event_viewer_data);
1438     } else if(relative_position < 0) {
1439       guint count;
1440
1441       /* Get an idea of currently shown event dispersion */
1442       LttTime first_event_time =
1443         lttv_traceset_context_position_get_time(event_viewer_data->first_event);
1444       LttTime last_event_time =
1445         lttv_traceset_context_position_get_time(event_viewer_data->last_event);
1446       LttTime time_diff = ltt_time_sub(last_event_time, first_event_time);
1447       if(ltt_time_compare(time_diff, ltt_time_zero) == 0)
1448         time_diff = seek_back_default_offset;
1449
1450       count = lttv_process_traceset_seek_n_backward(tsc,
1451           abs(relative_position),
1452           time_diff,
1453           (seek_time_fct)lttv_state_traceset_seek_time_closest,
1454           events_check_handler,
1455           &event_viewer_data->tab->stop_foreground,
1456           event_viewer_data->main_win_filter,
1457           event_viewer_data->filter, NULL, event_viewer_data);
1458     } /* else 0 : do nothing : we are already at the beginning position */
1459
1460     lttv_traceset_context_position_destroy(pos);
1461
1462     /* Save the first event position */
1463     lttv_traceset_context_position_save(tsc, event_viewer_data->first_event);
1464
1465     time = lttv_traceset_context_position_get_time(
1466                                             event_viewer_data->first_event);
1467     //if(ltt_time_compare(time, tsc->time_span.end_time) > 0)
1468     //  time = tsc->time_span.end_time;
1469
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
1474     lttv_state_traceset_seek_time_closest((LttvTracesetState*)tsc, time);
1475     lttv_process_traceset_middle(tsc, ltt_time_infinite, G_MAXUINT,
1476                                  event_viewer_data->first_event);
1477
1478   } else {
1479     /* Seek by time */
1480     lttv_state_traceset_seek_time_closest((LttvTracesetState*)tsc,
1481           time);
1482     lttv_process_traceset_middle(tsc, time, G_MAXUINT,
1483                                  NULL);
1484     LttTime time_val = ltt_time_sub(time,
1485                         tsc->time_span.start_time);
1486     event_viewer_data->previous_value = ltt_time_to_double(time_val);
1487     lttv_traceset_context_position_save(tsc, event_viewer_data->first_event);
1488   }
1489
1490   /* Clear the model (don't forget to free the TCS positions!) */
1491   gtk_list_store_clear(event_viewer_data->store_m);
1492   for(i=0;i<event_viewer_data->pos->len;i++) {
1493     LttvTracesetContextPosition *cur_pos =
1494       (LttvTracesetContextPosition*)g_ptr_array_index(event_viewer_data->pos,
1495                                                       i);
1496     lttv_traceset_context_position_destroy(cur_pos);
1497   }
1498   g_ptr_array_set_size(event_viewer_data->pos, 0);
1499
1500
1501   /* Mathieu :
1502    * I make the choice not to use the mainwindow lttvwindow API here : the idle
1503    * loop might have a too low priority, and we want good update while
1504    * scrolling. However, we call the gdk loop to get events periodically so the
1505    * processing can be stopped.
1506    */
1507
1508   lttv_process_traceset_begin(tsc,
1509       NULL, NULL, NULL, event_viewer_data->event_hooks, NULL);
1510
1511   event_viewer_data->num_events = 0;
1512
1513   lttv_process_traceset_middle(tsc, ltt_time_infinite, G_MAXUINT, NULL);
1514
1515   lttv_process_traceset_end(tsc,
1516       NULL, NULL, NULL, event_viewer_data->event_hooks, NULL);
1517
1518   /* Get the end position */
1519   if(event_viewer_data->pos->len > 0) {
1520     LttvTracesetContextPosition *cur_pos =
1521       (LttvTracesetContextPosition*)g_ptr_array_index(event_viewer_data->pos,
1522                                                event_viewer_data->pos->len - 1);
1523     lttv_traceset_context_position_copy(event_viewer_data->last_event,
1524         cur_pos);
1525   } else
1526     lttv_traceset_context_position_save(tsc, event_viewer_data->last_event);
1527
1528   gtk_adjustment_set_value(event_viewer_data->vadjust_c,
1529       event_viewer_data->previous_value);
1530
1531   //g_signal_emit_by_name(G_OBJECT (event_viewer_data->select_c),
1532   //    "changed");
1533
1534   event_viewer_data->last_tree_update_time =
1535     gdk_x11_get_server_time(
1536         gtk_widget_get_parent_window(event_viewer_data->tree_v));
1537
1538   lttvwindow_events_request_enable();
1539
1540   return;
1541 }
1542
1543
1544 int event_hook(void *hook_data, void *call_data)
1545 {
1546   EventViewerData *event_viewer_data = (EventViewerData*)hook_data;
1547   LttvTracefileContext *tfc = (LttvTracefileContext*)call_data;
1548   LttvTracefileState *tfs = (LttvTracefileState*)call_data;
1549   LttEvent *e = ltt_tracefile_get_event(tfc->tf);
1550
1551   if(event_viewer_data->num_events % CHECK_GDK_INTERVAL == 0) {
1552     GdkEvent *event;
1553     GtkWidget *widget;
1554     while((event = gdk_event_get()) != NULL) {
1555         widget = gtk_get_event_widget(event);
1556         if(widget ==
1557           lookup_widget(main_window_get_widget(event_viewer_data->tab),
1558               "StopProcessingButton")
1559           || widget == event_viewer_data->vscroll_vc) {
1560           gtk_main_do_event(event);
1561           gdk_window_process_all_updates();
1562         }
1563         gdk_event_free(event);
1564     }
1565     //gtk_main_iteration_do(FALSE);
1566     if(event_viewer_data->tab->stop_foreground)
1567       return TRUE;
1568   }
1569   event_viewer_data->num_events++;
1570
1571   LttvFilter *filter = event_viewer_data->main_win_filter;
1572   if(filter != NULL && filter->head != NULL)
1573     if(!lttv_filter_tree_parse(filter->head,e,tfc->tf,
1574           tfc->t_context->t,tfc,NULL,NULL))
1575       return FALSE;
1576
1577   filter = event_viewer_data->filter;
1578   if(filter != NULL && filter->head != NULL)
1579     if(!lttv_filter_tree_parse(filter->head,e,tfc->tf,
1580           tfc->t_context->t,tfc,NULL,NULL))
1581       return FALSE;
1582
1583
1584   LttFacility *facility = ltt_event_facility(e);
1585   LttEventType *event_type = ltt_event_eventtype(e);
1586   LttTime time = ltt_event_time(e);
1587
1588   guint cpu = tfs->cpu;
1589   LttvTraceState *ts = (LttvTraceState*)tfc->t_context;
1590   LttvProcessState *process = ts->running_process[cpu];
1591
1592   GtkTreeIter iter;
1593
1594   GString *desc = g_string_new("");
1595
1596   LttvTracesetContextPosition *pos =
1597     lttv_traceset_context_position_new(tfc->t_context->ts_context);
1598
1599   lttv_traceset_context_position_save(tfc->t_context->ts_context, pos);
1600
1601   lttv_event_to_string(e, desc, TRUE, TRUE, (LttvTracefileState*)tfc);
1602
1603   g_info("detail : %s", desc->str);
1604
1605   gtk_list_store_append (event_viewer_data->store_m, &iter);
1606   gtk_list_store_set (event_viewer_data->store_m, &iter,
1607       TRACE_NAME_COLUMN, g_quark_to_string(ltt_trace_name(tfc->t_context->t)),
1608       TRACEFILE_NAME_COLUMN, g_quark_to_string(ltt_tracefile_name(tfc->tf)),
1609       CPUID_COLUMN, cpu,
1610       FACILITY_COLUMN, g_quark_to_string(ltt_facility_name(facility)),
1611       EVENT_COLUMN, g_quark_to_string(ltt_eventtype_name(event_type)),
1612       TIME_S_COLUMN, time.tv_sec,
1613       TIME_NS_COLUMN, time.tv_nsec,
1614       PID_COLUMN, process->pid,
1615       EVENT_DESCR_COLUMN, desc->str,
1616       POSITION_COLUMN, pos,
1617       -1);
1618
1619   g_ptr_array_add(event_viewer_data->pos, pos);
1620
1621   g_string_free(desc, TRUE);
1622
1623   if(event_viewer_data->update_cursor) {
1624     if(lttv_traceset_context_pos_pos_compare(pos,
1625           event_viewer_data->currently_selected_position) == 0) {
1626       GtkTreePath *path = gtk_tree_path_new_from_indices(
1627                           event_viewer_data->pos->len - 1, -1);
1628                         if(path) {
1629               gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
1630                                    path, NULL, FALSE);
1631           gtk_tree_path_free(path);
1632                         }
1633     }
1634   }
1635
1636   if(event_viewer_data->pos->len >= event_viewer_data->num_visible_events )
1637     return TRUE;
1638   else
1639     return FALSE;
1640 }
1641
1642
1643
1644 static void event_update_selection(EventViewerData *event_viewer_data)
1645 {
1646   guint i;
1647   GPtrArray *positions = event_viewer_data->pos;
1648   g_info("event_update_selection");
1649
1650   for(i=0;i<positions->len;i++) {
1651     LttvTracesetContextPosition *cur_pos =
1652       (LttvTracesetContextPosition*)g_ptr_array_index(positions, i);
1653     if(lttv_traceset_context_pos_pos_compare(cur_pos,
1654           event_viewer_data->currently_selected_position) == 0) {
1655       GtkTreePath *path = gtk_tree_path_new_from_indices(i, -1);
1656                         if(path) {
1657               gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
1658                                      path, NULL, FALSE);
1659               gtk_tree_path_free(path);
1660                         }
1661     }
1662   }
1663 }
1664
1665 static int current_time_get_first_event_hook(void *hook_data, void *call_data)
1666 {
1667   EventViewerData *event_viewer_data = (EventViewerData*)hook_data;
1668   LttvTracefileContext *tfc = (LttvTracefileContext*)call_data;
1669   LttEvent *e = ltt_tracefile_get_event(tfc->tf);
1670
1671   LttvFilter *filter = event_viewer_data->main_win_filter;
1672   if(filter != NULL && filter->head != NULL)
1673     if(!lttv_filter_tree_parse(filter->head,e,tfc->tf,
1674           tfc->t_context->t,tfc,NULL,NULL))
1675       return FALSE;
1676
1677   filter = event_viewer_data->filter;
1678   if(filter != NULL && filter->head != NULL)
1679     if(!lttv_filter_tree_parse(filter->head,e,tfc->tf,
1680           tfc->t_context->t,tfc,NULL,NULL))
1681       return FALSE;
1682
1683   lttv_traceset_context_position_save(tfc->t_context->ts_context,
1684       event_viewer_data->current_time_get_first);
1685   return TRUE;
1686 }
1687
1688
1689 gboolean update_current_time(void * hook_data, void * call_data)
1690 {
1691   g_info("update_current_time");
1692   EventViewerData *event_viewer_data = (EventViewerData*) hook_data;
1693   const LttTime * current_time = (LttTime*)call_data;
1694   LttvTracesetContext * tsc =
1695         lttvwindow_get_traceset_context(event_viewer_data->tab);
1696   GtkTreePath *path;
1697
1698   /* If the currently selected event time != current time, set the first event
1699    * with this time as currently selected. */
1700   LttTime pos_time = lttv_traceset_context_position_get_time(
1701       event_viewer_data->currently_selected_position);
1702   if(ltt_time_compare(pos_time, *current_time) != 0) {
1703
1704     lttv_state_traceset_seek_time_closest((LttvTracesetState*)tsc,
1705         *current_time);
1706     lttv_process_traceset_middle(tsc, *current_time, G_MAXUINT,
1707                                    NULL);
1708
1709     /* Get the first event that passes in the filter */
1710     event_viewer_data->current_time_get_first =
1711                 lttv_traceset_context_position_new(tsc);
1712     LttvHooks *hooks = lttv_hooks_new();
1713     lttv_hooks_add(hooks,
1714                    current_time_get_first_event_hook,
1715                    event_viewer_data,
1716                    LTTV_PRIO_DEFAULT);
1717
1718     lttv_process_traceset_begin(tsc,
1719         NULL, NULL, NULL, hooks, NULL);
1720
1721     lttv_process_traceset_middle(tsc, ltt_time_infinite, G_MAXUINT, NULL);
1722
1723     lttv_process_traceset_end(tsc,
1724         NULL, NULL, NULL, hooks, NULL);
1725
1726     lttv_hooks_destroy(hooks);
1727
1728     lttv_traceset_context_position_copy(
1729         event_viewer_data->currently_selected_position,
1730         event_viewer_data->current_time_get_first);
1731     lttv_traceset_context_position_destroy(
1732         event_viewer_data->current_time_get_first);
1733     pos_time = lttv_traceset_context_position_get_time(
1734         event_viewer_data->currently_selected_position);
1735   }
1736
1737   LttTime time = ltt_time_sub(pos_time, tsc->time_span.start_time);
1738   double new_value = ltt_time_to_double(time);
1739
1740   event_viewer_data->report_position = FALSE;
1741   /* Change the viewed area if does not match */
1742   if(lttv_traceset_context_pos_pos_compare(
1743         event_viewer_data->currently_selected_position,
1744         event_viewer_data->first_event) < 0
1745     ||
1746      lttv_traceset_context_pos_pos_compare(
1747         event_viewer_data->currently_selected_position,
1748         event_viewer_data->last_event) > 0) {
1749     gtk_adjustment_set_value(event_viewer_data->vadjust_c, new_value);
1750   } else {
1751     /* Simply update the current time : it is in the list */
1752     event_update_selection(event_viewer_data);
1753   }
1754   event_viewer_data->report_position = TRUE;
1755
1756   return FALSE;
1757 }
1758
1759 gboolean update_current_position(void * hook_data, void * call_data)
1760 {
1761   g_info("update_current_position");
1762   EventViewerData *event_viewer_data = (EventViewerData*) hook_data;
1763   const LttvTracesetContextPosition *current_pos =
1764     (LttvTracesetContextPosition*)call_data;
1765   LttvTracesetContext * tsc =
1766         lttvwindow_get_traceset_context(event_viewer_data->tab);
1767
1768   if(lttv_traceset_context_pos_pos_compare(
1769         event_viewer_data->currently_selected_position, current_pos) != 0) {
1770     lttv_traceset_context_position_copy(
1771         event_viewer_data->currently_selected_position, current_pos);
1772
1773     /* Change the viewed area if does not match */
1774     if(lttv_traceset_context_pos_pos_compare(
1775           event_viewer_data->currently_selected_position,
1776           event_viewer_data->first_event) < 0
1777       ||
1778        lttv_traceset_context_pos_pos_compare(
1779           event_viewer_data->currently_selected_position,
1780           event_viewer_data->last_event) > 0) {
1781       LttTime time = lttv_traceset_context_position_get_time(current_pos);
1782       time = ltt_time_sub(time, tsc->time_span.start_time);
1783       double new_value = ltt_time_to_double(time);
1784       gtk_adjustment_set_value(event_viewer_data->vadjust_c, new_value);
1785     } else {
1786       /* Simply update the current time : it is in the list */
1787       event_update_selection(event_viewer_data);
1788     }
1789
1790   }
1791
1792
1793   return FALSE;
1794 }
1795
1796
1797
1798 gboolean traceset_changed(void * hook_data, void * call_data)
1799 {
1800   EventViewerData *event_viewer_data = (EventViewerData*) hook_data;
1801   LttvTracesetContext * tsc =
1802         lttvwindow_get_traceset_context(event_viewer_data->tab);
1803   TimeInterval time_span = tsc->time_span;
1804
1805   LttTime end;
1806   gtk_list_store_clear(event_viewer_data->store_m);
1807   g_ptr_array_set_size(event_viewer_data->pos, 0);
1808
1809   end = ltt_time_sub(time_span.end_time, time_span.start_time);
1810   event_viewer_data->vadjust_c->upper = ltt_time_to_double(end);
1811
1812   /* Reset the positions */
1813   lttv_traceset_context_position_destroy(
1814       event_viewer_data->currently_selected_position);
1815   lttv_traceset_context_position_destroy(
1816       event_viewer_data->first_event);
1817   lttv_traceset_context_position_destroy(
1818       event_viewer_data->last_event);
1819
1820   event_viewer_data->currently_selected_position =
1821     lttv_traceset_context_position_new(tsc);
1822   event_viewer_data->first_event =
1823     lttv_traceset_context_position_new(tsc);
1824   event_viewer_data->last_event =
1825     lttv_traceset_context_position_new(tsc);
1826
1827   get_events(event_viewer_data->vadjust_c->value, event_viewer_data);
1828   //  event_viewer_data->vadjust_c->value = 0;
1829
1830         request_background_data(event_viewer_data);
1831
1832   return FALSE;
1833 }
1834
1835 gboolean filter_changed(void * hook_data, void * call_data)
1836 {
1837   EventViewerData *event_viewer_data = (EventViewerData*) hook_data;
1838   LttvTracesetContext * tsc =
1839         lttvwindow_get_traceset_context(event_viewer_data->tab);
1840
1841   event_viewer_data->main_win_filter =
1842     (LttvFilter*)call_data;
1843   get_events(event_viewer_data->vadjust_c->value, event_viewer_data);
1844
1845   return FALSE;
1846 }
1847
1848
1849 gint evd_redraw_notify(void *hook_data, void *call_data)
1850 {
1851   EventViewerData *event_viewer_data = (EventViewerData*) hook_data;
1852
1853   get_events(event_viewer_data->vadjust_c->value, event_viewer_data);
1854   return 0;
1855 }
1856
1857 void gui_events_free(gpointer data)
1858 {
1859   LttvPluginEVD *plugin_evd = (LttvPluginEVD*)data;
1860   Tab *tab = plugin_evd->evd->tab;
1861   EventViewerData *event_viewer_data = plugin_evd->evd;
1862   guint i;
1863
1864   lttv_filter_destroy(plugin_evd->evd->filter);
1865
1866   if(tab != NULL){
1867     lttv_hooks_remove(event_viewer_data->event_hooks,event_hook);
1868     lttv_hooks_destroy(event_viewer_data->event_hooks);
1869
1870     for(i=0;i<event_viewer_data->pos->len;i++) {
1871       LttvTracesetContextPosition *cur_pos =
1872         (LttvTracesetContextPosition*)g_ptr_array_index(event_viewer_data->pos,
1873                                                         i);
1874       lttv_traceset_context_position_destroy(cur_pos);
1875     }
1876     lttv_traceset_context_position_destroy(
1877         event_viewer_data->currently_selected_position);
1878     lttv_traceset_context_position_destroy(
1879         event_viewer_data->first_event);
1880     lttv_traceset_context_position_destroy(
1881         event_viewer_data->last_event);
1882     g_ptr_array_free(event_viewer_data->pos, TRUE);
1883
1884     lttvwindow_unregister_current_time_notify(tab,
1885                         update_current_time, event_viewer_data);
1886     lttvwindow_unregister_current_position_notify(tab,
1887                         update_current_position, event_viewer_data);
1888     //lttvwindow_unregister_show_notify(tab,
1889     //                    show_event_detail, event_viewer_data);
1890     lttvwindow_unregister_traceset_notify(tab,
1891                         traceset_changed, event_viewer_data);
1892     lttvwindow_unregister_filter_notify(tab,
1893                         filter_changed, event_viewer_data);
1894     lttvwindow_unregister_redraw_notify(tab,
1895                 evd_redraw_notify, event_viewer_data);
1896
1897   }
1898   lttvwindowtraces_background_notify_remove(event_viewer_data);
1899
1900   g_event_viewer_data_list = g_slist_remove(g_event_viewer_data_list,
1901       event_viewer_data);
1902   //g_free(event_viewer_data);
1903   g_object_unref(plugin_evd);
1904 }
1905
1906
1907
1908 void gui_events_destructor(gpointer data)
1909 {
1910   LttvPluginEVD *plugin_evd = (LttvPluginEVD*)data;
1911   /* May already been done by GTK window closing */
1912   if(GTK_IS_WIDGET(plugin_evd->parent.top_widget)){
1913     gtk_widget_destroy(plugin_evd->parent.top_widget);
1914   }
1915 }
1916
1917
1918
1919 /**
1920  * plugin's init function
1921  *
1922  * This function initializes the Event Viewer functionnality through the
1923  * gtkTraceSet API.
1924  */
1925 static void init() {
1926
1927   lttvwindow_register_constructor("guievents",
1928                                   "/",
1929                                   "Insert Event Viewer",
1930                                   hGuiEventsInsert_xpm,
1931                                   "Insert Event Viewer",
1932                                   h_gui_events);
1933 }
1934
1935 void event_destroy_walk(gpointer data, gpointer user_data)
1936 {
1937   gui_events_destructor((LttvPluginEVD*)data);
1938 }
1939
1940 /**
1941  * plugin's destroy function
1942  *
1943  * This function releases the memory reserved by the module and unregisters
1944  * everything that has been registered in the gtkTraceSet API.
1945  */
1946 static void destroy() {
1947
1948   g_slist_foreach(g_event_viewer_data_list, event_destroy_walk, NULL );
1949   g_slist_free(g_event_viewer_data_list);
1950
1951   lttvwindow_unregister_constructor(h_gui_events);
1952
1953 }
1954
1955
1956
1957
1958 LTTV_MODULE("guievents", "Detailed events view", \
1959     "Graphical module to display a detailed event list", \
1960             init, destroy, "lttvwindow", "print")