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

   1 /* This file is part of the Linux Trace Toolkit viewer
   2  * Copyright (C) 2003-2004 Mathieu Desnoyers and XangXiu Yang
   3  *               2005 Mathieu Desnoyers
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License Version 2 as
   7  * published by the Free Software Foundation;
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  17  * MA 02111-1307, USA.
  18  */
  19
  20
  21 //*! \defgroup GuiEvents libGuiEvents: The GUI Events display plugin */
  22 /*\@{*/
  23
  24 /*! \file GuiEvents.c
  25  * \brief Graphical plugin for showing events.
  26  *
  27  * This plugin lists all the events contained in the current time interval
  28  * in a list.
  29  *
  30  * This plugin adds a Events Viewer functionnality to Linux TraceToolkit
  31  * GUI when this plugin is loaded. The init and destroy functions add the
  32  * viewer's insertion menu item and toolbar icon by calling viewer.h's
  33  * API functions. Then, when a viewer's object is created, the constructor
  34  * creates ans register through API functions what is needed to interact
  35  * with the lttvwindow.
  36  *
  37  * Authors : Mathieu Desnoyers and XangXiu Yang, June to December 2003
  38  *           Inspired from original LTT, made by Karim Yaghmour
  39  *
  40  *           Mostly rewritten by Mathieu Desnoyers, August 2005.
  41  */
  42
  43 #ifdef HAVE_CONFIG_H
  44 #include <config.h>
  45 #endif
  46
  47 #include <math.h>
  48
  49 #include <glib.h>
  50 #include <gtk/gtk.h>
  51 #include <gdk/gdk.h>
  52 #include <string.h>
  53
  54 #include <ltt/ltt.h>
  55 #include <ltt/event.h>
  56 #include <ltt/type.h>
  57 #include <ltt/trace.h>
  58 #include <ltt/facility.h>
  59 #include <lttv/module.h>
  60 #include <lttv/hook.h>
  61 #include <lttv/tracecontext.h>
  62 #include <lttv/state.h>
  63 #include <lttv/filter.h>
  64 #include <lttv/print.h>
  65 #include <lttvwindow/lttvwindow.h>
  66 #include <lttvwindow/lttvwindowtraces.h>
  67
  68 #include "hGuiEventsInsert.xpm"
  69
  70 #define g_info(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_INFO, format)
  71
  72 #ifndef g_debug
  73 #define g_debug(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, format)
  74 #endif
  75
  76 #define abs(a) (((a)<0)?(-a):(a))
  77
  78
  79 /** Array containing instanced objects. Used when module is unloaded */
  80 static GSList *g_event_viewer_data_list = NULL ;
  81
  82 typedef enum _ScrollDirection{
  83   SCROLL_STEP_UP,
  84   SCROLL_STEP_DOWN,
  85   SCROLL_PAGE_UP,
  86   SCROLL_PAGE_DOWN,
  87   SCROLL_JUMP,
  88   SCROLL_NONE
  89 } ScrollDirection;
  90
  91 typedef struct _EventViewerData {
  92
  93   Tab * tab;
  94   LttvHooks  * event_hooks;
  95
  96   /* previous value is used to determine if it is a page up/down or
  97    * step up/down, in which case we move of a certain amount of events (one or
  98    * the number of events shown on the screen) instead of changing begin time.
  99    */
 100   double       previous_value;
 101
 102   //scroll window containing Tree View
 103   GtkWidget * scroll_win;
 104
 105   /* Model containing list data */
 106   GtkListStore *store_m;
 107
 108   GPtrArray *pos; /* Array of LttvTracesetContextPosition * */
 109
 110   GtkWidget *top_widget;
 111   GtkWidget *hbox_v;
 112   /* Widget to display the data in a columned list */
 113   GtkWidget *tree_v;
 114   GtkAdjustment *vtree_adjust_c ;
 115   GtkWidget *button; /* a button of the header, used to get the header_height */
 116   gint header_height;
 117
 118   /* Vertical scrollbar and its adjustment */
 119   GtkWidget *vscroll_vc;
 120   GtkAdjustment *vadjust_c;
 121
 122   /* Selection handler */
 123   GtkTreeSelection *select_c;
 124
 125   gint num_visible_events;
 126
 127   LttvTracesetContextPosition *currently_selected_position;
 128   gboolean update_cursor; /* Speed optimisation : do not update cursor when
 129                              unnecessary */
 130   gboolean report_position; /* do not report position when in current_time
 131                                update */
 132
 133   LttvTracesetContextPosition *first_event;  /* Time of the first event shown */
 134   LttvTracesetContextPosition *last_event;  /* Time of the first event shown */
 135
 136   LttvFilter *main_win_filter;
 137
 138   gint background_info_waiting;
 139
 140 } EventViewerData ;
 141
 142 /** hook functions for update time interval, current time ... */
 143 gboolean update_current_time(void * hook_data, void * call_data);
 144 gboolean update_current_position(void * hook_data, void * call_data);
 145 //gboolean show_event_detail(void * hook_data, void * call_data);
 146 gboolean traceset_changed(void * hook_data, void * call_data);
 147 gboolean filter_changed(void * hook_data, void * call_data);
 148
 149 static void request_background_data(EventViewerData *event_viewer_data);
 150
 151 //! Event Viewer's constructor hook
 152 GtkWidget *h_gui_events(Tab *tab);
 153 //! Event Viewer's constructor
 154 EventViewerData *gui_events(Tab *tab);
 155 //! Event Viewer's destructor
 156 void gui_events_destructor(EventViewerData *event_viewer_data);
 157 void gui_events_free(EventViewerData *event_viewer_data);
 158
 159 static gboolean
 160 header_size_allocate(GtkWidget *widget,
 161                         GtkAllocation *allocation,
 162                         gpointer user_data);
 163
 164 void tree_v_set_cursor(EventViewerData *event_viewer_data);
 165 void tree_v_get_cursor(EventViewerData *event_viewer_data);
 166
 167 /* Prototype for selection handler callback */
 168 static void tree_selection_changed_cb (GtkTreeSelection *selection,
 169     gpointer data);
 170 static void v_scroll_cb (GtkAdjustment *adjustment, gpointer data);
 171 static void tree_v_size_allocate_cb (GtkWidget *widget, GtkAllocation *alloc,
 172     gpointer data);
 173 static void tree_v_size_request_cb (GtkWidget *widget,
 174     GtkRequisition *requisition, gpointer data);
 175 static void tree_v_cursor_changed_cb (GtkWidget *widget, gpointer data);
 176 static void tree_v_move_cursor_cb (GtkWidget *widget, GtkMovementStep arg1,
 177     gint arg2, gpointer data);
 178
 179 static gint redraw_notify(void *hook_data, void *call_data);
 180
 181 static void get_events(double time, EventViewerData *event_viewer_data);
 182
 183 int event_hook(void *hook_data, void *call_data);
 184
 185 /* Enumeration of the columns */
 186 enum
 187 {
 188   TRACE_NAME_COLUMN,
 189   TRACEFILE_NAME_COLUMN,
 190   CPUID_COLUMN,
 191   EVENT_COLUMN,
 192   FACILITY_COLUMN,
 193   TIME_S_COLUMN,
 194   TIME_NS_COLUMN,
 195   PID_COLUMN,
 196   EVENT_DESCR_COLUMN,
 197   POSITION_COLUMN,
 198   N_COLUMNS
 199 };
 200
 201 /**
 202  * Event Viewer's constructor hook
 203  *
 204  * This constructor is given as a parameter to the menuitem and toolbar button
 205  * registration. It creates the list.
 206  * @param parent_window A pointer to the parent window.
 207  * @return The widget created.
 208  */
 209 GtkWidget *
 210 h_gui_events(Tab * tab)
 211 {
 212   EventViewerData* event_viewer_data = gui_events(tab) ;
 213   if(event_viewer_data)
 214     return event_viewer_data->top_widget;
 215   else return NULL;
 216
 217 }
 218
 219 /**
 220  * Event Viewer's constructor
 221  *
 222  * This constructor is used to create EventViewerData data structure.
 223  * @return The Event viewer data created.
 224  */
 225 EventViewerData *
 226 gui_events(Tab *tab)
 227 {
 228   LttTime end;
 229   GtkTreeViewColumn *column;
 230   GtkCellRenderer *renderer;
 231   EventViewerData* event_viewer_data = g_new(EventViewerData,1) ;
 232
 233   event_viewer_data->tab = tab;
 234
 235   LttvTracesetContext * tsc =
 236         lttvwindow_get_traceset_context(event_viewer_data->tab);
 237
 238
 239   event_viewer_data->event_hooks = lttv_hooks_new();
 240   lttv_hooks_add(event_viewer_data->event_hooks,
 241                  event_hook,
 242                  event_viewer_data,
 243                  LTTV_PRIO_DEFAULT);
 244
 245   lttvwindow_register_current_time_notify(tab,
 246                 update_current_time,event_viewer_data);
 247   lttvwindow_register_current_position_notify(tab,
 248                 update_current_position,event_viewer_data);
 249   lttvwindow_register_traceset_notify(tab,
 250                 traceset_changed,event_viewer_data);
 251   lttvwindow_register_filter_notify(tab,
 252                 filter_changed, event_viewer_data);
 253   lttvwindow_register_redraw_notify(tab,
 254                 redraw_notify, event_viewer_data);
 255
 256
 257   event_viewer_data->scroll_win = gtk_scrolled_window_new (NULL, NULL);
 258   gtk_widget_show (event_viewer_data->scroll_win);
 259   gtk_scrolled_window_set_policy(
 260       GTK_SCROLLED_WINDOW(event_viewer_data->scroll_win),
 261       GTK_POLICY_AUTOMATIC, GTK_POLICY_NEVER);
 262
 263   event_viewer_data->currently_selected_position =
 264     lttv_traceset_context_position_new(tsc);
 265   event_viewer_data->first_event =
 266     lttv_traceset_context_position_new(tsc);
 267   event_viewer_data->last_event =
 268     lttv_traceset_context_position_new(tsc);
 269
 270   event_viewer_data->main_win_filter = lttvwindow_get_filter(tab);
 271
 272   event_viewer_data->update_cursor = TRUE;
 273   event_viewer_data->report_position = TRUE;
 274
 275   /* Create a model for storing the data list */
 276   event_viewer_data->store_m = gtk_list_store_new (
 277     N_COLUMNS,      /* Total number of columns     */
 278     G_TYPE_STRING,  /* Trace name                  */
 279     G_TYPE_STRING,  /* Tracefile name              */
 280     G_TYPE_UINT,    /* CPUID                       */
 281     G_TYPE_STRING,  /* Event                       */
 282     G_TYPE_STRING,  /* Facility                    */
 283     G_TYPE_UINT,    /* Time s                      */
 284     G_TYPE_UINT,    /* Time ns                     */
 285     G_TYPE_INT,     /* PID                         */
 286     G_TYPE_STRING,  /* Event's description         */
 287     G_TYPE_POINTER);/* Position (not shown)        */
 288
 289   event_viewer_data->pos = g_ptr_array_sized_new(10);
 290
 291   /* Create the viewer widget for the columned list */
 292   event_viewer_data->tree_v =
 293     gtk_tree_view_new_with_model (GTK_TREE_MODEL (event_viewer_data->store_m));
 294
 295   g_signal_connect (G_OBJECT (event_viewer_data->tree_v), "size-allocate",
 296         G_CALLBACK (tree_v_size_allocate_cb),
 297         event_viewer_data);
 298   g_signal_connect (G_OBJECT (event_viewer_data->tree_v), "size-request",
 299         G_CALLBACK (tree_v_size_request_cb),
 300         event_viewer_data);
 301
 302   g_signal_connect (G_OBJECT (event_viewer_data->tree_v), "cursor-changed",
 303         G_CALLBACK (tree_v_cursor_changed_cb),
 304         event_viewer_data);
 305
 306   g_signal_connect (G_OBJECT (event_viewer_data->tree_v), "move-cursor",
 307         G_CALLBACK (tree_v_move_cursor_cb),
 308         event_viewer_data);
 309
 310   // Use on each column!
 311   //gtk_tree_view_column_set_sizing(event_viewer_data->tree_v,
 312   //GTK_TREE_VIEW_COLUMN_FIXED);
 313
 314   /* The view now holds a reference.  We can get rid of our own
 315    * reference */
 316   g_object_unref (G_OBJECT (event_viewer_data->store_m));
 317
 318
 319   /* Create a column, associating the "text" attribute of the
 320    * cell_renderer to the first column of the model */
 321   /* Columns alignment : 0.0 : Left    0.5 : Center   1.0 : Right */
 322   renderer = gtk_cell_renderer_text_new ();
 323   column = gtk_tree_view_column_new_with_attributes ("Trace",
 324                  renderer,
 325                  "text", TRACE_NAME_COLUMN,
 326                  NULL);
 327   gtk_tree_view_column_set_alignment (column, 0.0);
 328   gtk_tree_view_column_set_fixed_width (column, 120);
 329   gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->tree_v),
 330       column);
 331
 332   event_viewer_data->button = column->button;
 333
 334   g_signal_connect (G_OBJECT(event_viewer_data->button),
 335         "size-allocate",
 336         G_CALLBACK(header_size_allocate),
 337         (gpointer)event_viewer_data);
 338
 339
 340
 341   renderer = gtk_cell_renderer_text_new ();
 342   column = gtk_tree_view_column_new_with_attributes ("Tracefile",
 343                  renderer,
 344                  "text", TRACEFILE_NAME_COLUMN,
 345                  NULL);
 346   gtk_tree_view_column_set_alignment (column, 0.0);
 347   gtk_tree_view_column_set_fixed_width (column, 120);
 348   gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->tree_v),
 349       column);
 350
 351
 352   renderer = gtk_cell_renderer_text_new ();
 353   column = gtk_tree_view_column_new_with_attributes ("CPUID",
 354                  renderer,
 355                  "text", CPUID_COLUMN,
 356                  NULL);
 357   gtk_tree_view_column_set_alignment (column, 0.0);
 358   gtk_tree_view_column_set_fixed_width (column, 45);
 359   gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->tree_v),
 360       column);
 361
 362   renderer = gtk_cell_renderer_text_new ();
 363   column = gtk_tree_view_column_new_with_attributes ("Event",
 364                  renderer,
 365                  "text", EVENT_COLUMN,
 366                  NULL);
 367   gtk_tree_view_column_set_alignment (column, 0.0);
 368   gtk_tree_view_column_set_fixed_width (column, 120);
 369   gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->tree_v),
 370       column);
 371
 372   renderer = gtk_cell_renderer_text_new ();
 373   column = gtk_tree_view_column_new_with_attributes ("Facility",
 374                  renderer,
 375                  "text", FACILITY_COLUMN,
 376                  NULL);
 377   gtk_tree_view_column_set_alignment (column, 0.0);
 378   gtk_tree_view_column_set_fixed_width (column, 120);
 379   gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->tree_v),
 380       column);
 381
 382   renderer = gtk_cell_renderer_text_new ();
 383   column = gtk_tree_view_column_new_with_attributes ("Time (s)",
 384                  renderer,
 385                  "text", TIME_S_COLUMN,
 386                  NULL);
 387   gtk_tree_view_column_set_alignment (column, 1.0);
 388   gtk_tree_view_column_set_fixed_width (column, 120);
 389   gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->tree_v),
 390       column);
 391
 392   renderer = gtk_cell_renderer_text_new ();
 393   column = gtk_tree_view_column_new_with_attributes ("Time (ns)",
 394                  renderer,
 395                  "text", TIME_NS_COLUMN,
 396                  NULL);
 397   gtk_tree_view_column_set_alignment (column, 1.0);
 398   gtk_tree_view_column_set_fixed_width (column, 120);
 399   gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->tree_v),
 400       column);
 401
 402
 403   renderer = gtk_cell_renderer_text_new ();
 404   column = gtk_tree_view_column_new_with_attributes ("PID",
 405                  renderer,
 406                  "text", PID_COLUMN,
 407                  NULL);
 408   gtk_tree_view_column_set_alignment (column, 1.0);
 409   gtk_tree_view_column_set_fixed_width (column, 45);
 410   gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->tree_v),
 411       column);
 412
 413   renderer = gtk_cell_renderer_text_new ();
 414   column = gtk_tree_view_column_new_with_attributes ("Event Description",
 415                  renderer,
 416                  "text", EVENT_DESCR_COLUMN,
 417                  NULL);
 418   gtk_tree_view_column_set_alignment (column, 0.0);
 419   gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->tree_v),
 420       column);
 421
 422
 423   /* Setup the selection handler */
 424   event_viewer_data->select_c =
 425     gtk_tree_view_get_selection (GTK_TREE_VIEW (event_viewer_data->tree_v));
 426   gtk_tree_selection_set_mode (event_viewer_data->select_c,
 427       GTK_SELECTION_SINGLE);
 428   g_signal_connect (G_OBJECT (event_viewer_data->select_c), "changed",
 429         G_CALLBACK (tree_selection_changed_cb),
 430         event_viewer_data);
 431
 432   gtk_container_add (GTK_CONTAINER (event_viewer_data->scroll_win),
 433       event_viewer_data->tree_v);
 434
 435   event_viewer_data->hbox_v = gtk_hbox_new(0, 0);
 436   event_viewer_data->top_widget = event_viewer_data->hbox_v;
 437   gtk_box_pack_start(GTK_BOX(event_viewer_data->hbox_v),
 438       event_viewer_data->scroll_win, TRUE, TRUE, 0);
 439
 440   gtk_container_set_border_width(GTK_CONTAINER(event_viewer_data->hbox_v), 1);
 441
 442   /* Create vertical scrollbar and pack it */
 443   event_viewer_data->vscroll_vc = gtk_vscrollbar_new(NULL);
 444   gtk_range_set_update_policy (GTK_RANGE(event_viewer_data->vscroll_vc),
 445              GTK_UPDATE_CONTINUOUS);
 446              // Changed by MD : more user friendly :)
 447              //GTK_UPDATE_DISCONTINUOUS);
 448   gtk_box_pack_start(GTK_BOX(event_viewer_data->hbox_v),
 449       event_viewer_data->vscroll_vc, FALSE, TRUE, 0);
 450
 451   /* Get the vertical scrollbar's adjustment */
 452   event_viewer_data->vadjust_c =
 453     gtk_range_get_adjustment(GTK_RANGE(event_viewer_data->vscroll_vc));
 454   event_viewer_data->vtree_adjust_c = gtk_tree_view_get_vadjustment(
 455                     GTK_TREE_VIEW (event_viewer_data->tree_v));
 456
 457   g_signal_connect (G_OBJECT (event_viewer_data->vadjust_c), "value-changed",
 458         G_CALLBACK (v_scroll_cb),
 459         event_viewer_data);
 460   /* Set the upper bound to the last event number */
 461   event_viewer_data->previous_value = 0;
 462   event_viewer_data->vadjust_c->lower = 0.0;
 463     //event_viewer_data->vadjust_c->upper = event_viewer_data->number_of_events;
 464   event_viewer_data->vadjust_c->value = 0.0;
 465   event_viewer_data->vadjust_c->step_increment = 1.0;
 466   event_viewer_data->vadjust_c->page_increment = 2.0;
 467     //  event_viewer_data->vtree_adjust_c->upper;
 468   event_viewer_data->vadjust_c->page_size = 2.0;
 469   //    event_viewer_data->vtree_adjust_c->upper;
 470   /*  Raw event trace */
 471   gtk_widget_show(event_viewer_data->hbox_v);
 472   gtk_widget_show(event_viewer_data->tree_v);
 473   gtk_widget_show(event_viewer_data->vscroll_vc);
 474
 475   /* Add the object's information to the module's array */
 476   g_event_viewer_data_list = g_slist_append(g_event_viewer_data_list,
 477       event_viewer_data);
 478
 479   event_viewer_data->num_visible_events = 1;
 480
 481   //get the life span of the traceset and set the upper of the scroll bar
 482
 483   TimeInterval time_span = tsc->time_span;
 484   end = ltt_time_sub(time_span.end_time, time_span.start_time);
 485
 486   event_viewer_data->vadjust_c->upper =
 487               ltt_time_to_double(end);
 488
 489   /* Set the Selected Event */
 490   //  tree_v_set_cursor(event_viewer_data);
 491
 492  // event_viewer_data->current_time_updated = FALSE;
 493  //
 494   g_object_set_data_full(
 495       G_OBJECT(event_viewer_data->hbox_v),
 496       "event_viewer_data",
 497       event_viewer_data,
 498       (GDestroyNotify)gui_events_free);
 499
 500   event_viewer_data->background_info_waiting = 0;
 501
 502   request_background_data(event_viewer_data);
 503
 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     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
 535   LttvHooks *background_ready_hook =
 536     lttv_hooks_new();
 537   lttv_hooks_add(background_ready_hook, background_ready, event_viewer_data,
 538       LTTV_PRIO_DEFAULT);
 539   event_viewer_data->background_info_waiting = 0;
 540
 541   for(i=0;i<num_traces;i++) {
 542     trace = lttv_traceset_get(tsc->ts, i);
 543
 544     if(lttvwindowtraces_get_ready(g_quark_from_string("state"),trace)==FALSE) {
 545
 546       if(lttvwindowtraces_get_in_progress(g_quark_from_string("state"),
 547                                           trace) == FALSE) {
 548         /* We first remove requests that could have been done for the same
 549          * information. Happens when two viewers ask for it before servicing
 550          * starts.
 551          */
 552         lttvwindowtraces_background_request_remove(trace, "state");
 553         lttvwindowtraces_background_request_queue(trace,
 554                                                   "state");
 555         lttvwindowtraces_background_notify_queue(event_viewer_data,
 556                                                  trace,
 557                                                  ltt_time_infinite,
 558                                                  NULL,
 559                                                  background_ready_hook);
 560         event_viewer_data->background_info_waiting++;
 561       } else { /* in progress */
 562
 563         lttvwindowtraces_background_notify_current(event_viewer_data,
 564                                                    trace,
 565                                                    ltt_time_infinite,
 566                                                    NULL,
 567                                                    background_ready_hook);
 568         event_viewer_data->background_info_waiting++;
 569       }
 570     } else {
 571       /* Data ready. Be its nature, this viewer doesn't need to have
 572        * its data ready hook called htere, because a background
 573        * request is always linked with a redraw.
 574        */
 575     }
 576
 577   }
 578
 579   lttv_hooks_destroy(background_ready_hook);
 580
 581 }
 582
 583 static gboolean
 584 header_size_allocate(GtkWidget *widget,
 585                         GtkAllocation *allocation,
 586                         gpointer user_data)
 587 {
 588   EventViewerData *event_viewer_data = (EventViewerData*)user_data;
 589
 590   event_viewer_data->header_height = allocation->height;
 591
 592   return 0;
 593 }
 594
 595
 596 void tree_v_set_cursor(EventViewerData *event_viewer_data)
 597 {
 598   GtkTreePath *path;
 599
 600   g_debug("set cursor cb");
 601
 602 #if 0
 603   if(event_viewer_data->currently_selected_event != -1)
 604     {
 605       path = gtk_tree_path_new_from_indices(
 606               event_viewer_data->currently_selected_event,
 607               -1);
 608
 609       gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
 610           path, NULL, FALSE);
 611       gtk_tree_path_free(path);
 612     }
 613 #endif //0
 614 }
 615
 616 void tree_v_get_cursor(EventViewerData *event_viewer_data)
 617 {
 618   GtkTreePath *path;
 619   gint *indices;
 620
 621   g_debug("get cursor cb");
 622
 623
 624 #if 0
 625   gtk_tree_view_get_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
 626       &path, NULL);
 627   indices = gtk_tree_path_get_indices(path);
 628
 629   if(indices != NULL)
 630       event_viewer_data->currently_selected_event = indices[0];
 631     else
 632       event_viewer_data->currently_selected_event = -1;
 633
 634   gtk_tree_path_free(path);
 635 #endif //0
 636 }
 637
 638
 639
 640 void tree_v_move_cursor_cb (GtkWidget *widget,
 641                             GtkMovementStep arg1,
 642                             gint arg2,
 643                             gpointer data)
 644 {
 645   GtkTreePath *path; // = gtk_tree_path_new();
 646   gint *indices;
 647   gdouble value;
 648   EventViewerData *event_viewer_data = (EventViewerData*)data;
 649
 650   g_debug("move cursor cb");
 651   //gtk_tree_view_get_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
 652   //                          &path, NULL);
 653   //if(path == NULL)
 654   //{
 655     /* No prior cursor, put it at beginning of page
 656      * and let the execution do */
 657   //  path = gtk_tree_path_new_from_indices(0, -1);
 658   //  gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
 659   //                              path, NULL, FALSE);
 660   //}
 661
 662   //indices = gtk_tree_path_get_indices(path);
 663
 664   //value = gtk_adjustment_get_value(event_viewer_data->vadjust_c);
 665
 666   /* If no prior position... */
 667   if(ltt_time_compare(
 668         lttv_traceset_context_position_get_time(
 669           event_viewer_data->currently_selected_position),
 670         ltt_time_infinite) == 0) {
 671
 672     path = gtk_tree_path_new_from_indices(0, -1);
 673     gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
 674                                 path, NULL, FALSE);
 675
 676     gtk_tree_path_free(path);
 677     return;
 678
 679   }
 680
 681
 682   g_debug("tree view move cursor : arg1 is %u and arg2 is %d",
 683       (guint)arg1, arg2);
 684
 685   switch(arg1) {
 686   case GTK_MOVEMENT_DISPLAY_LINES:
 687     if(arg2 == 1) {
 688       /* Move one line down */
 689       if(event_viewer_data->pos->len > 0) {
 690         LttvTracesetContextPosition *end_pos =
 691           (LttvTracesetContextPosition*)g_ptr_array_index(
 692                                              event_viewer_data->pos,
 693                                              event_viewer_data->pos->len-1);
 694         if(lttv_traceset_context_pos_pos_compare(end_pos,
 695               event_viewer_data->currently_selected_position) == 0) {
 696           /* Must get down one event and select the last one */
 697           gtk_tree_selection_unselect_all(gtk_tree_view_get_selection(
 698                 GTK_TREE_VIEW(event_viewer_data->tree_v)));
 699           event_viewer_data->update_cursor = FALSE;
 700           gtk_adjustment_set_value(event_viewer_data->vadjust_c,
 701               gtk_adjustment_get_value(event_viewer_data->vadjust_c) + 1);
 702           event_viewer_data->update_cursor = TRUE;
 703           path = gtk_tree_path_new_from_indices(
 704               event_viewer_data->pos->len - 1, -1);
 705           gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
 706                                    path, NULL, FALSE);
 707           gtk_tree_path_free(path);
 708         }
 709       }
 710
 711     } else {
 712       if(event_viewer_data->pos->len > 0) {
 713         /* Move one line up */
 714         LttvTracesetContextPosition *begin_pos =
 715           (LttvTracesetContextPosition*)g_ptr_array_index(
 716                                              event_viewer_data->pos,
 717                                              0);
 718         if(lttv_traceset_context_pos_pos_compare(begin_pos,
 719               event_viewer_data->currently_selected_position) == 0) {
 720           /* Must get up one event and select the first one */
 721           gtk_tree_selection_unselect_all(gtk_tree_view_get_selection(
 722                 GTK_TREE_VIEW(event_viewer_data->tree_v)));
 723           event_viewer_data->update_cursor = FALSE;
 724           gtk_adjustment_set_value(event_viewer_data->vadjust_c,
 725               gtk_adjustment_get_value(event_viewer_data->vadjust_c) - 1);
 726           event_viewer_data->update_cursor = TRUE;
 727           path = gtk_tree_path_new_from_indices(
 728               0, -1);
 729           gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
 730                                    path, NULL, FALSE);
 731           gtk_tree_path_free(path);
 732         }
 733       }
 734     }
 735     break;
 736   case GTK_MOVEMENT_PAGES:
 737     if(arg2 == 1) {
 738       /* Move one page down */
 739       if(event_viewer_data->pos->len > 0) {
 740         LttvTracesetContextPosition *end_pos =
 741           (LttvTracesetContextPosition*)g_ptr_array_index(
 742                                              event_viewer_data->pos,
 743                                              event_viewer_data->pos->len-1);
 744         if(lttv_traceset_context_pos_pos_compare(end_pos,
 745               event_viewer_data->currently_selected_position) == 0) {
 746           /* Must get down one page and select the last one */
 747           gtk_tree_selection_unselect_all(gtk_tree_view_get_selection(
 748                 GTK_TREE_VIEW(event_viewer_data->tree_v)));
 749
 750           event_viewer_data->update_cursor = FALSE;
 751           gtk_adjustment_set_value(event_viewer_data->vadjust_c,
 752               gtk_adjustment_get_value(event_viewer_data->vadjust_c) + 2);
 753           event_viewer_data->update_cursor = TRUE;
 754
 755           path = gtk_tree_path_new_from_indices(
 756               event_viewer_data->pos->len - 1, -1);
 757           gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
 758                                    path, NULL, FALSE);
 759           gtk_tree_path_free(path);
 760
 761         }
 762       }
 763
 764     } else {
 765       /* Move one page up */
 766       if(event_viewer_data->pos->len > 0) {
 767         LttvTracesetContextPosition *begin_pos =
 768           (LttvTracesetContextPosition*)g_ptr_array_index(
 769                                              event_viewer_data->pos,
 770                                              0);
 771         if(lttv_traceset_context_pos_pos_compare(begin_pos,
 772               event_viewer_data->currently_selected_position) == 0) {
 773           /* Must get up one page and select the first one */
 774           gtk_tree_selection_unselect_all(gtk_tree_view_get_selection(
 775                 GTK_TREE_VIEW(event_viewer_data->tree_v)));
 776
 777           event_viewer_data->update_cursor = FALSE;
 778           gtk_adjustment_set_value(event_viewer_data->vadjust_c,
 779               gtk_adjustment_get_value(event_viewer_data->vadjust_c) - 2);
 780           event_viewer_data->update_cursor = TRUE;
 781
 782           path = gtk_tree_path_new_from_indices(
 783               0, -1);
 784           gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
 785                                    path, NULL, FALSE);
 786           gtk_tree_path_free(path);
 787         }
 788       }
 789
 790     }
 791     break;
 792   default:
 793     break;
 794   }
 795
 796   //gtk_tree_path_free(path);
 797
 798 #if 0
 799   if(arg1 == GTK_MOVEMENT_DISPLAY_LINES)
 800   {
 801     /* Move one line */
 802     if(arg2 == 1)
 803     {
 804       /* move one line down */
 805       if(indices[0]) // Do we need an empty field here (before first)?
 806       {
 807         if(value + event_viewer_data->num_visible_events <=
 808             event_viewer_data->number_of_events -1)
 809         {
 810           event_viewer_data->currently_selected_event += 1;
 811           //      gtk_adjustment_set_value(event_viewer_data->vadjust_c, value+1);
 812           //gtk_tree_path_free(path);
 813           //path = gtk_tree_path_new_from_indices(event_viewer_data->num_visible_events-1, -1);
 814           //gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v), path, NULL, FALSE);
 815           g_signal_stop_emission_by_name(G_OBJECT(widget), "move-cursor");
 816         }
 817       }
 818     } else {
 819       /* Move one line up */
 820       if(indices[0] == 0)
 821       {
 822         if(value - 1 >= 0 )
 823         {
 824           event_viewer_data->currently_selected_event -= 1;
 825           //      gtk_adjustment_set_value(event_viewer_data->vadjust_c, value-1);
 826           //gtk_tree_path_free(path);
 827           //path = gtk_tree_path_new_from_indices(0, -1);
 828           //gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v), path, NULL, FALSE);
 829           g_signal_stop_emission_by_name(G_OBJECT(widget), "move-cursor");
 830         }
 831       }
 832     }
 833   }
 834
 835   if(arg1 == GTK_MOVEMENT_PAGES)
 836   {
 837     /* Move one page */
 838     if(arg2 == 1)
 839     {
 840       if(event_viewer_data->num_visible_events == 1)
 841         value += 1 ;
 842       /* move one page down */
 843       if(value + event_viewer_data->num_visible_events-1 <=
 844                       event_viewer_data->number_of_events )
 845       {
 846         event_viewer_data->currently_selected_event +=
 847                                   event_viewer_data->num_visible_events-1;
 848         //        gtk_adjustment_set_value(event_viewer_data->vadjust_c,
 849         //               value+(event_viewer_data->num_visible_events-1));
 850         //gtk_tree_path_free(path);
 851         //path = gtk_tree_path_new_from_indices(0, -1);
 852         //gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v), path, NULL, FALSE);
 853         g_signal_stop_emission_by_name(G_OBJECT(widget), "move-cursor");
 854       }
 855     } else {
 856       /* Move one page up */
 857       if(event_viewer_data->num_visible_events == 1)
 858         value -= 1 ;
 859
 860       if(indices[0] < event_viewer_data->num_visible_events - 2 )
 861       {
 862         if(value - (event_viewer_data->num_visible_events-1) >= 0)
 863         {
 864           event_viewer_data->currently_selected_event -=
 865                           event_viewer_data->num_visible_events-1;
 866
 867           //      gtk_adjustment_set_value(event_viewer_data->vadjust_c,
 868           //             value-(event_viewer_data->num_visible_events-1));
 869           //gtk_tree_path_free(path);
 870           //path = gtk_tree_path_new_from_indices(0, -1);
 871           //gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v), path, NULL, FALSE);
 872           g_signal_stop_emission_by_name(G_OBJECT(widget), "move-cursor");
 873
 874         } else {
 875           /* Go to first Event */
 876           event_viewer_data->currently_selected_event == 0 ;
 877           //      gtk_adjustment_set_value(event_viewer_data->vadjust_c,
 878           //             0);
 879           //gtk_tree_path_free(path);
 880           //path = gtk_tree_path_new_from_indices(0, -1);
 881           //gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v), path, NULL, FALSE);
 882           g_signal_stop_emission_by_name(G_OBJECT(widget), "move-cursor");
 883
 884         }
 885       }
 886     }
 887   }
 888
 889   if(arg1 == GTK_MOVEMENT_BUFFER_ENDS)
 890   {
 891     /* Move to the ends of the buffer */
 892     if(arg2 == 1)
 893     {
 894       /* move end of buffer */
 895       event_viewer_data->currently_selected_event =
 896                             event_viewer_data->number_of_events-1 ;
 897       //    gtk_adjustment_set_value(event_viewer_data->vadjust_c,
 898       //           event_viewer_data->number_of_events -
 899       //           event_viewer_data->num_visible_events);
 900       //gtk_tree_path_free(path);
 901       //path = gtk_tree_path_new_from_indices(event_viewer_data->num_visible_events-1, -1);
 902       //gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v), path, NULL, FALSE);
 903       g_signal_stop_emission_by_name(G_OBJECT(widget), "move-cursor");
 904     } else {
 905       /* Move beginning of buffer */
 906       event_viewer_data->currently_selected_event = 0 ;
 907       //    gtk_adjustment_set_value(event_viewer_data->vadjust_c, 0);
 908         //gtk_tree_path_free(path);
 909         //path = gtk_tree_path_new_from_indices(0, -1);
 910         //gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v), path, NULL, FALSE);
 911       g_signal_stop_emission_by_name(G_OBJECT(widget), "move-cursor");
 912     }
 913   }
 914 #endif //0
 915 }
 916
 917 void tree_v_cursor_changed_cb (GtkWidget *widget, gpointer data)
 918 {
 919   EventViewerData *event_viewer_data = (EventViewerData*) data;
 920   Tab *tab = event_viewer_data->tab;
 921   GtkTreeIter iter;
 922   GtkTreeModel* model = GTK_TREE_MODEL(event_viewer_data->store_m);
 923   GtkTreePath *path;
 924   LttvTracesetContextPosition *pos;
 925
 926   g_debug("cursor changed cb");
 927
 928   /* On cursor change, modify the currently selected event by calling
 929    * the right API function */
 930
 931
 932   if(event_viewer_data->report_position) {
 933     gtk_tree_view_get_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
 934         &path, NULL);
 935     if(gtk_tree_model_get_iter(model,&iter,path)){
 936       gtk_tree_model_get(model, &iter, POSITION_COLUMN, &pos, -1);
 937
 938       if(lttv_traceset_context_pos_pos_compare(pos,
 939             event_viewer_data->currently_selected_position) != 0)
 940         lttvwindow_report_current_position(tab, pos);
 941     }else{
 942       g_warning("Can not get iter\n");
 943     }
 944     gtk_tree_path_free(path);
 945   }
 946 }
 947
 948
 949 static void tree_selection_changed_cb (GtkTreeSelection *selection,
 950     gpointer data)
 951 {
 952   g_debug("tree sel changed cb");
 953   EventViewerData *event_viewer_data = (EventViewerData*) data;
 954 #if 0
 955     /* Set the cursor to currently selected event */
 956   GtkTreeModel* model = GTK_TREE_MODEL(event_viewer_data->store_m);
 957   GtkTreeIter iter;
 958   LttvTracesetContextPosition *pos;
 959   guint i;
 960   GtkTreePath *tree_path;
 961
 962   for(i=0;i<event_viewer_data->num_visible_events;i++) {
 963     tree_path = gtk_tree_path_new_from_indices(
 964                 i,
 965                -1);
 966     if(gtk_tree_model_get_iter(model,&iter,tree_path)){
 967       gtk_tree_model_get(model, &iter, POSITION_COLUMN, &pos, -1);
 968
 969       if(lttv_traceset_context_pos_pos_compare(pos,
 970             event_viewer_data->currently_selected_position) == 0) {
 971         /* Match! */
 972             gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
 973                 tree_path, NULL, FALSE);
 974         break;
 975       }
 976
 977     }else{
 978       g_warning("Can not get iter\n");
 979     }
 980    gtk_tree_path_free(tree_path);
 981   }
 982 #endif //0
 983 }
 984
 985
 986
 987 /* This callback may be recalled after a step up/down, but we don't want to lose
 988  * the exact position : what we do is that we only set the value if it has
 989  * changed : a step up/down that doesn't change the time value of the first
 990  * event won't trigger a scrollbar change. */
 991
 992 void v_scroll_cb (GtkAdjustment *adjustment, gpointer data)
 993 {
 994   EventViewerData *event_viewer_data = (EventViewerData*)data;
 995   LttvTracesetStats *tss =
 996     lttvwindow_get_traceset_stats(event_viewer_data->tab);
 997   LttvTracesetContext *tsc = (LttvTracesetContext*)tss;
 998   g_debug("SCROLL begin");
 999   g_debug("SCROLL values : %g , %g, %g",
1000       adjustment->value, event_viewer_data->previous_value,
1001       (adjustment->value - event_viewer_data->previous_value));
1002
1003   LttTime new_time_off = ltt_time_from_double(adjustment->value);
1004   LttTime old_time_off = ltt_time_from_double(event_viewer_data->previous_value);
1005   g_debug("SCROLL time values %lu.%lu, %lu.%lu", new_time_off.tv_sec,
1006       new_time_off.tv_nsec, old_time_off.tv_sec, old_time_off.tv_nsec);
1007   /* If same value : nothing to update */
1008   if(ltt_time_compare(new_time_off, old_time_off) == 0)
1009     return;
1010
1011   //LttTime old_time = event_viewer_data->first_event;
1012
1013   get_events(adjustment->value, event_viewer_data);
1014 #if 0
1015   LttTime time = ltt_time_sub(event_viewer_data->first_event,
1016                               tsc->time_span.start_time);
1017   double value = ltt_time_to_double(time);
1018   gtk_adjustment_set_value(event_viewer_data->vadjust_c, value);
1019
1020   if(event_viewer_data->currently_selected_event != -1) {
1021
1022       tree_path = gtk_tree_path_new_from_indices(
1023              event_viewer_data->currently_selected_event,
1024              -1);
1025
1026       //      gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v), tree_path,
1027       //             NULL, FALSE);
1028       gtk_tree_path_free(tree_path);
1029   }
1030 #endif //0
1031   g_debug("SCROLL end");
1032 }
1033
1034 static __inline gint get_cell_height(GtkTreeView *TreeView)
1035 {
1036   gint height;
1037   GtkTreeViewColumn *column = gtk_tree_view_get_column(TreeView, 0);
1038
1039   gtk_tree_view_column_cell_get_size(column, NULL, NULL, NULL, NULL, &height);
1040
1041   return height;
1042 }
1043
1044 void tree_v_size_allocate_cb (GtkWidget *widget, GtkAllocation *alloc, gpointer data)
1045 {
1046   EventViewerData *event_viewer_data = (EventViewerData*)data;
1047   gint cell_height = get_cell_height(GTK_TREE_VIEW(event_viewer_data->tree_v));
1048   gint last_num_visible_events = event_viewer_data->num_visible_events;
1049   gdouble exact_num_visible;
1050
1051   exact_num_visible = ( alloc->height -
1052           event_viewer_data->header_height )
1053             / (double)cell_height ;
1054
1055   event_viewer_data->num_visible_events = ceil(exact_num_visible) ;
1056
1057 /*
1058   event_viewer_data->vadjust_c->page_increment =
1059     floor(exact_num_visible);
1060   event_viewer_data->vadjust_c->page_size =
1061     floor(exact_num_visible);
1062 */
1063
1064   g_debug("size allocate : last_num_visible_events : %d,\
1065            num_visible_events : %d",
1066            last_num_visible_events,
1067            event_viewer_data->num_visible_events);
1068   if(event_viewer_data->num_visible_events != last_num_visible_events)
1069     {
1070       get_events(event_viewer_data->vadjust_c->value, event_viewer_data);
1071     }
1072
1073
1074 }
1075
1076 void tree_v_size_request_cb (GtkWidget *widget, GtkRequisition *requisition, gpointer data)
1077 {
1078   gint h;
1079   EventViewerData *event_viewer_data = (EventViewerData*)data;
1080   gint cell_height = get_cell_height(GTK_TREE_VIEW(event_viewer_data->tree_v));
1081
1082   h = cell_height + event_viewer_data->header_height;
1083   requisition->height = h;
1084
1085 }
1086
1087 #if 0
1088 gboolean show_event_detail(void * hook_data, void * call_data)
1089 {
1090   EventViewerData *event_viewer_data = (EventViewerData*) hook_data;
1091   LttvTracesetContext * tsc = lttvwindow_get_traceset_context(event_viewer_data->tab);
1092
1093   if(event_viewer_data->event_fields_queue_tmp->length == 0 &&
1094      event_viewer_data->event_fields_queue->length == 0){
1095     event_viewer_data->shown = FALSE;
1096     return FALSE;
1097   }
1098
1099   if(event_viewer_data->shown == FALSE){
1100     event_viewer_data->shown = TRUE;
1101     update_raw_data_array(event_viewer_data,
1102         event_viewer_data->event_fields_queue_tmp->length);
1103
1104     get_data(event_viewer_data->vadjust_c->value,
1105       event_viewer_data->num_visible_events,
1106       event_viewer_data);
1107
1108     remove_context_hooks(event_viewer_data,tsc);
1109   }
1110
1111   return FALSE;
1112 }
1113 #endif //0
1114
1115
1116
1117
1118
1119
1120
1121 static void get_events(double new_value, EventViewerData *event_viewer_data)
1122 {
1123   GtkTreePath *tree_path;
1124   LttvTracesetStats *tss =
1125     lttvwindow_get_traceset_stats(event_viewer_data->tab);
1126   LttvTracesetContext *tsc = (LttvTracesetContext*)tss;
1127   guint i;
1128   gboolean seek_by_time;
1129
1130   double value = new_value - event_viewer_data->previous_value;
1131
1132   /* See where we have to scroll... */
1133   ScrollDirection direction;
1134   gint relative_position;
1135
1136   if(value < -0.8) {
1137     if(value >= -1.0) direction = SCROLL_STEP_UP;
1138     else {
1139       if(value >= -2.0) direction = SCROLL_PAGE_UP;
1140       else direction = SCROLL_JUMP;
1141     }
1142   } else if(value > 0.8) {
1143     if(value <= 1.0) direction = SCROLL_STEP_DOWN;
1144     else {
1145       if(value <= 2.0) direction = SCROLL_PAGE_DOWN;
1146       else direction = SCROLL_JUMP;
1147     }
1148   } else direction = SCROLL_NONE; /* 0.0 */
1149
1150
1151   switch(direction) {
1152   case SCROLL_STEP_UP:
1153     g_debug("get_events : SCROLL_STEP_UP");
1154     relative_position = -1;
1155     seek_by_time = 0;
1156     break;
1157   case SCROLL_STEP_DOWN:
1158     g_debug("get_events : SCROLL_STEP_DOWN");
1159     relative_position = 1;
1160     seek_by_time = 0;
1161     break;
1162   case SCROLL_PAGE_UP:
1163     g_debug("get_events : SCROLL_PAGE_UP");
1164     relative_position = -(event_viewer_data->num_visible_events);
1165     seek_by_time = 0;
1166     break;
1167   case SCROLL_PAGE_DOWN:
1168     g_debug("get_events : SCROLL_PAGE_DOWN");
1169     relative_position = event_viewer_data->num_visible_events;
1170     seek_by_time = 0;
1171     break;
1172   case SCROLL_JUMP:
1173     g_debug("get_events : SCROLL_JUMP");
1174     seek_by_time = 1;
1175     break;
1176   case SCROLL_NONE:
1177     g_debug("get_events : SCROLL_NONE");
1178     relative_position = 0;
1179     seek_by_time = 0;
1180     break;
1181   }
1182
1183   LttTime time = ltt_time_from_double(new_value);
1184   time = ltt_time_add(tsc->time_span.start_time, time);
1185
1186   if(!seek_by_time) {
1187
1188     LttvTracesetContextPosition *pos =
1189         lttv_traceset_context_position_new(tsc);
1190
1191   /* Remember the beginning position */
1192     if(event_viewer_data->pos->len > 0) {
1193       LttvTracesetContextPosition *first_pos =
1194         (LttvTracesetContextPosition*)g_ptr_array_index(event_viewer_data->pos,
1195                                                         0);
1196       lttv_traceset_context_position_copy(pos, first_pos);
1197       g_assert(lttv_process_traceset_seek_position(tsc, pos) == 0);
1198     } else {
1199       /* There is nothing in the list : simply seek to the time value. */
1200       lttv_state_traceset_seek_time_closest((LttvTracesetState*)tsc,
1201           time);
1202       lttv_process_traceset_middle(tsc, time, G_MAXUINT,
1203                                    NULL);
1204     }
1205
1206   /* Note that, as we mess with the tsc position, this function CANNOT be called
1207    * from a hook inside the lttv_process_traceset_middle. */
1208   /* As the lttvwindow API keeps a sync_position inside the tsc to go back at
1209    * the right spot after being interrupted, it's ok to change the tsc position,
1210    * as long as we do not touch the sync_position. */
1211
1212   /* Get the beginning position of the read (with seek backward or seek forward)
1213    */
1214     if(relative_position > 0) {
1215       guint count;
1216       count = lttv_process_traceset_seek_n_forward(tsc, relative_position,
1217           event_viewer_data->main_win_filter);
1218     } else if(relative_position < 0) {
1219       guint count;
1220
1221       /* Get an idea of currently shown event dispersion */
1222       LttTime first_event_time =
1223         lttv_traceset_context_position_get_time(event_viewer_data->first_event);
1224       LttTime last_event_time =
1225         lttv_traceset_context_position_get_time(event_viewer_data->last_event);
1226       LttTime time_diff = ltt_time_sub(last_event_time, first_event_time);
1227       if(ltt_time_compare(time_diff, ltt_time_zero) == 0)
1228         time_diff = seek_back_default_offset;
1229       count = lttv_process_traceset_seek_n_backward(tsc, abs(relative_position),
1230           time_diff,
1231           (seek_time_fct)lttv_state_traceset_seek_time_closest,
1232           event_viewer_data->main_win_filter);
1233     } /* else 0 : do nothing : we are already at the beginning position */
1234
1235     lttv_traceset_context_position_destroy(pos);
1236
1237     /* Save the first event position */
1238     lttv_traceset_context_position_save(tsc, event_viewer_data->first_event);
1239
1240     time = lttv_traceset_context_position_get_time(
1241                                             event_viewer_data->first_event);
1242     //if(ltt_time_compare(time, tsc->time_span.end_time) > 0)
1243     //  time = tsc->time_span.end_time;
1244
1245     LttTime time_val = ltt_time_sub(time,
1246                         tsc->time_span.start_time);
1247     event_viewer_data->previous_value = ltt_time_to_double(time_val);
1248
1249     lttv_state_traceset_seek_time_closest((LttvTracesetState*)tsc, time);
1250     lttv_process_traceset_middle(tsc, ltt_time_infinite, G_MAXUINT,
1251                                  event_viewer_data->first_event);
1252
1253   } else {
1254     /* Seek by time */
1255     lttv_state_traceset_seek_time_closest((LttvTracesetState*)tsc,
1256           time);
1257     lttv_process_traceset_middle(tsc, time, G_MAXUINT,
1258                                  NULL);
1259     LttTime time_val = ltt_time_sub(time,
1260                         tsc->time_span.start_time);
1261     event_viewer_data->previous_value = ltt_time_to_double(time_val);
1262     lttv_traceset_context_position_save(tsc, event_viewer_data->first_event);
1263   }
1264
1265   /* Clear the model (don't forget to free the TCS positions!) */
1266   gtk_list_store_clear(event_viewer_data->store_m);
1267   for(i=0;i<event_viewer_data->pos->len;i++) {
1268     LttvTracesetContextPosition *cur_pos =
1269       (LttvTracesetContextPosition*)g_ptr_array_index(event_viewer_data->pos,
1270                                                       i);
1271     lttv_traceset_context_position_destroy(cur_pos);
1272   }
1273   g_ptr_array_set_size(event_viewer_data->pos, 0);
1274
1275
1276   /* Mathieu :
1277    * I make the choice not to use the mainwindow lttvwindow API here : the idle
1278    * loop might have a too low priority, and we want good update while
1279    * scrolling.
1280    */
1281
1282   lttv_process_traceset_begin(tsc,
1283       NULL, NULL, NULL, event_viewer_data->event_hooks, NULL);
1284
1285   lttv_process_traceset_middle(tsc, ltt_time_infinite, G_MAXUINT, NULL);
1286
1287   lttv_process_traceset_end(tsc,
1288       NULL, NULL, NULL, event_viewer_data->event_hooks, NULL);
1289
1290   /* Get the end position */
1291   if(event_viewer_data->pos->len > 0) {
1292     LttvTracesetContextPosition *cur_pos =
1293       (LttvTracesetContextPosition*)g_ptr_array_index(event_viewer_data->pos,
1294                                                event_viewer_data->pos->len - 1);
1295     lttv_traceset_context_position_copy(event_viewer_data->last_event,
1296         cur_pos);
1297   } else
1298     lttv_traceset_context_position_save(tsc, event_viewer_data->last_event);
1299
1300   gtk_adjustment_set_value(event_viewer_data->vadjust_c,
1301       event_viewer_data->previous_value);
1302
1303   //g_signal_emit_by_name(G_OBJECT (event_viewer_data->select_c),
1304   //    "changed");
1305
1306
1307   return;
1308 }
1309
1310
1311
1312 int event_hook(void *hook_data, void *call_data)
1313 {
1314   EventViewerData *event_viewer_data = (EventViewerData*)hook_data;
1315   LttvTracefileContext *tfc = (LttvTracefileContext*)call_data;
1316   LttEvent *e = ltt_tracefile_get_event(tfc->tf);
1317
1318   LttvFilter *filter = event_viewer_data->main_win_filter;
1319   if(filter != NULL && filter->head != NULL)
1320     if(!lttv_filter_tree_parse(filter->head,e,tfc->tf,
1321           tfc->t_context->t,tfc))
1322       return FALSE;
1323
1324   LttFacility *facility = ltt_event_facility(e);
1325   LttEventType *event_type = ltt_event_eventtype(e);
1326   LttField *field = ltt_event_field(e);
1327   LttTime time = ltt_event_time(e);
1328
1329   guint cpu = ltt_tracefile_num(tfc->tf);
1330   LttvTraceState *ts = (LttvTraceState*)tfc->t_context;
1331   LttvProcessState *process = ts->running_process[cpu];
1332
1333   GtkTreeIter iter;
1334
1335   GString *desc = g_string_new("");
1336
1337   LttvTracesetContextPosition *pos =
1338     lttv_traceset_context_position_new(tfc->t_context->ts_context);
1339
1340   lttv_traceset_context_position_save(tfc->t_context->ts_context, pos);
1341
1342   if(field)
1343     lttv_print_field(e, field, desc, TRUE);
1344
1345   g_info("field : %s", desc->str);
1346
1347   gtk_list_store_append (event_viewer_data->store_m, &iter);
1348   gtk_list_store_set (event_viewer_data->store_m, &iter,
1349       TRACE_NAME_COLUMN, g_quark_to_string(ltt_trace_name(tfc->t_context->t)),
1350       TRACEFILE_NAME_COLUMN, g_quark_to_string(ltt_tracefile_name(tfc->tf)),
1351       CPUID_COLUMN, cpu,
1352       FACILITY_COLUMN, g_quark_to_string(ltt_facility_name(facility)),
1353       EVENT_COLUMN, g_quark_to_string(ltt_eventtype_name(event_type)),
1354       TIME_S_COLUMN, time.tv_sec,
1355       TIME_NS_COLUMN, time.tv_nsec,
1356       PID_COLUMN, process->pid,
1357       EVENT_DESCR_COLUMN, desc->str,
1358       POSITION_COLUMN, pos,
1359       -1);
1360
1361   g_ptr_array_add(event_viewer_data->pos, pos);
1362
1363   g_string_free(desc, TRUE);
1364
1365   if(event_viewer_data->update_cursor) {
1366     if(lttv_traceset_context_pos_pos_compare(pos,
1367           event_viewer_data->currently_selected_position) == 0) {
1368       GtkTreePath *path = gtk_tree_path_new_from_indices(
1369                           event_viewer_data->pos->len - 1, -1);
1370       gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
1371                              path, NULL, FALSE);
1372       gtk_tree_path_free(path);
1373     }
1374   }
1375
1376   if(event_viewer_data->pos->len >= event_viewer_data->num_visible_events )
1377     return TRUE;
1378   else
1379     return FALSE;
1380 }
1381
1382
1383
1384 static void event_update_selection(EventViewerData *event_viewer_data)
1385 {
1386   guint i;
1387   GPtrArray *positions = event_viewer_data->pos;
1388   g_info("event_update_selection");
1389
1390   for(i=0;i<positions->len;i++) {
1391     LttvTracesetContextPosition *cur_pos =
1392       (LttvTracesetContextPosition*)g_ptr_array_index(positions, i);
1393     if(lttv_traceset_context_pos_pos_compare(cur_pos,
1394           event_viewer_data->currently_selected_position) == 0) {
1395       GtkTreePath *path = gtk_tree_path_new_from_indices(i, -1);
1396       gtk_tree_view_set_cursor(GTK_TREE_VIEW(event_viewer_data->tree_v),
1397                              path, NULL, FALSE);
1398       gtk_tree_path_free(path);
1399     }
1400   }
1401 }
1402
1403
1404 gboolean update_current_time(void * hook_data, void * call_data)
1405 {
1406   g_info("update_current_time");
1407   EventViewerData *event_viewer_data = (EventViewerData*) hook_data;
1408   const LttTime * current_time = (LttTime*)call_data;
1409   LttvTracesetContext * tsc =
1410         lttvwindow_get_traceset_context(event_viewer_data->tab);
1411   GtkTreePath *path;
1412
1413   /* If the currently selected event time != current time, set the first event
1414    * with this time as currently selected. */
1415   LttTime pos_time = lttv_traceset_context_position_get_time(
1416       event_viewer_data->currently_selected_position);
1417   if(ltt_time_compare(pos_time, *current_time) != 0) {
1418
1419     lttv_state_traceset_seek_time_closest((LttvTracesetState*)tsc,
1420         *current_time);
1421     lttv_process_traceset_middle(tsc, *current_time, G_MAXUINT,
1422                                    NULL);
1423     /* Little trick : seek 0 events forward to get the first event
1424      * that passes the filter. The trick is to have a match function that
1425      * returns 2 : it makes the read stop and keep the last position */
1426     guint count;
1427     count = lttv_process_traceset_seek_n_forward(tsc, 0,
1428           event_viewer_data->main_win_filter);
1429
1430 #if 0
1431     lttv_process_traceset_seek_time(tsc, *current_time);
1432 #endif //0
1433
1434     lttv_traceset_context_position_save(tsc,
1435         event_viewer_data->currently_selected_position);
1436     pos_time = lttv_traceset_context_position_get_time(
1437         event_viewer_data->currently_selected_position);
1438   }
1439
1440   LttTime time = ltt_time_sub(pos_time, tsc->time_span.start_time);
1441   double new_value = ltt_time_to_double(time);
1442
1443   event_viewer_data->report_position = FALSE;
1444   /* Change the viewed area if does not match */
1445   if(lttv_traceset_context_pos_pos_compare(
1446         event_viewer_data->currently_selected_position,
1447         event_viewer_data->first_event) < 0
1448     ||
1449      lttv_traceset_context_pos_pos_compare(
1450         event_viewer_data->currently_selected_position,
1451         event_viewer_data->last_event) > 0) {
1452     gtk_adjustment_set_value(event_viewer_data->vadjust_c, new_value);
1453   } else {
1454     /* Simply update the current time : it is in the list */
1455     event_update_selection(event_viewer_data);
1456   }
1457   event_viewer_data->report_position = TRUE;
1458
1459   return FALSE;
1460 }
1461
1462 gboolean update_current_position(void * hook_data, void * call_data)
1463 {
1464   g_info("update_current_position");
1465   EventViewerData *event_viewer_data = (EventViewerData*) hook_data;
1466   const LttvTracesetContextPosition *current_pos =
1467     (LttvTracesetContextPosition*)call_data;
1468   LttvTracesetContext * tsc =
1469         lttvwindow_get_traceset_context(event_viewer_data->tab);
1470
1471   if(lttv_traceset_context_pos_pos_compare(
1472         event_viewer_data->currently_selected_position, current_pos) != 0) {
1473     lttv_traceset_context_position_copy(
1474         event_viewer_data->currently_selected_position, current_pos);
1475
1476     /* Change the viewed area if does not match */
1477     if(lttv_traceset_context_pos_pos_compare(
1478           event_viewer_data->currently_selected_position,
1479           event_viewer_data->first_event) < 0
1480       ||
1481        lttv_traceset_context_pos_pos_compare(
1482           event_viewer_data->currently_selected_position,
1483           event_viewer_data->last_event) > 0) {
1484       LttTime time = lttv_traceset_context_position_get_time(current_pos);
1485       time = ltt_time_sub(time, tsc->time_span.start_time);
1486       double new_value = ltt_time_to_double(time);
1487       gtk_adjustment_set_value(event_viewer_data->vadjust_c, new_value);
1488     } else {
1489       /* Simply update the current time : it is in the list */
1490       event_update_selection(event_viewer_data);
1491     }
1492
1493   }
1494
1495
1496   return FALSE;
1497 }
1498
1499
1500
1501 gboolean traceset_changed(void * hook_data, void * call_data)
1502 {
1503   EventViewerData *event_viewer_data = (EventViewerData*) hook_data;
1504   LttvTracesetContext * tsc =
1505         lttvwindow_get_traceset_context(event_viewer_data->tab);
1506   TimeInterval time_span = tsc->time_span;
1507
1508   LttTime end;
1509   gtk_list_store_clear(event_viewer_data->store_m);
1510   g_ptr_array_set_size(event_viewer_data->pos, 0);
1511
1512   end = ltt_time_sub(time_span.end_time, time_span.start_time);
1513   event_viewer_data->vadjust_c->upper = ltt_time_to_double(end);
1514
1515   /* Reset the positions */
1516   lttv_traceset_context_position_destroy(
1517       event_viewer_data->currently_selected_position);
1518   lttv_traceset_context_position_destroy(
1519       event_viewer_data->first_event);
1520   lttv_traceset_context_position_destroy(
1521       event_viewer_data->last_event);
1522
1523   event_viewer_data->currently_selected_position =
1524     lttv_traceset_context_position_new(tsc);
1525   event_viewer_data->first_event =
1526     lttv_traceset_context_position_new(tsc);
1527   event_viewer_data->last_event =
1528     lttv_traceset_context_position_new(tsc);
1529
1530   get_events(event_viewer_data->vadjust_c->value, event_viewer_data);
1531   //  event_viewer_data->vadjust_c->value = 0;
1532
1533   return FALSE;
1534 }
1535
1536 gboolean filter_changed(void * hook_data, void * call_data)
1537 {
1538   EventViewerData *event_viewer_data = (EventViewerData*) hook_data;
1539   LttvTracesetContext * tsc =
1540         lttvwindow_get_traceset_context(event_viewer_data->tab);
1541
1542   event_viewer_data->main_win_filter =
1543     (LttvFilter*)call_data;
1544   get_events(event_viewer_data->vadjust_c->value, event_viewer_data);
1545
1546   return FALSE;
1547 }
1548
1549
1550 gint redraw_notify(void *hook_data, void *call_data)
1551 {
1552   EventViewerData *event_viewer_data = (EventViewerData*) hook_data;
1553
1554   get_events(event_viewer_data->vadjust_c->value, event_viewer_data);
1555 }
1556
1557 void gui_events_free(EventViewerData *event_viewer_data)
1558 {
1559   Tab *tab = event_viewer_data->tab;
1560   guint i;
1561
1562   if(event_viewer_data){
1563     lttv_hooks_remove(event_viewer_data->event_hooks,event_hook);
1564     lttv_hooks_destroy(event_viewer_data->event_hooks);
1565
1566     for(i=0;i<event_viewer_data->pos->len;i++) {
1567       LttvTracesetContextPosition *cur_pos =
1568         (LttvTracesetContextPosition*)g_ptr_array_index(event_viewer_data->pos,
1569                                                         i);
1570       lttv_traceset_context_position_destroy(cur_pos);
1571     }
1572     lttv_traceset_context_position_destroy(
1573         event_viewer_data->currently_selected_position);
1574     lttv_traceset_context_position_destroy(
1575         event_viewer_data->first_event);
1576     lttv_traceset_context_position_destroy(
1577         event_viewer_data->last_event);
1578     g_ptr_array_free(event_viewer_data->pos, TRUE);
1579
1580     lttvwindow_unregister_current_time_notify(tab,
1581                         update_current_time, event_viewer_data);
1582     lttvwindow_unregister_current_position_notify(tab,
1583                         update_current_position, event_viewer_data);
1584     //lttvwindow_unregister_show_notify(tab,
1585     //                    show_event_detail, event_viewer_data);
1586     lttvwindow_unregister_traceset_notify(tab,
1587                         traceset_changed, event_viewer_data);
1588     lttvwindow_unregister_filter_notify(tab,
1589                         filter_changed, event_viewer_data);
1590     lttvwindow_unregister_redraw_notify(tab,
1591                 redraw_notify, event_viewer_data);
1592
1593     lttvwindowtraces_background_notify_remove(event_viewer_data);
1594
1595     g_event_viewer_data_list = g_slist_remove(g_event_viewer_data_list,
1596         event_viewer_data);
1597     g_free(event_viewer_data);
1598   }
1599 }
1600
1601
1602
1603 void gui_events_destructor(EventViewerData *event_viewer_data)
1604 {
1605   /* May already been done by GTK window closing */
1606   if(GTK_IS_WIDGET(event_viewer_data->hbox_v)){
1607     gtk_widget_destroy(event_viewer_data->hbox_v);
1608   }
1609 }
1610
1611
1612
1613 /**
1614  * plugin's init function
1615  *
1616  * This function initializes the Event Viewer functionnality through the
1617  * gtkTraceSet API.
1618  */
1619 static void init() {
1620
1621   lttvwindow_register_constructor("guievents",
1622                                   "/",
1623                                   "Insert Event Viewer",
1624                                   hGuiEventsInsert_xpm,
1625                                   "Insert Event Viewer",
1626                                   h_gui_events);
1627 }
1628
1629 void event_destroy_walk(gpointer data, gpointer user_data)
1630 {
1631   gui_events_destructor((EventViewerData*)data);
1632 }
1633
1634 /**
1635  * plugin's destroy function
1636  *
1637  * This function releases the memory reserved by the module and unregisters
1638  * everything that has been registered in the gtkTraceSet API.
1639  */
1640 static void destroy() {
1641
1642   g_slist_foreach(g_event_viewer_data_list, event_destroy_walk, NULL );
1643   g_slist_free(g_event_viewer_data_list);
1644
1645   lttvwindow_unregister_constructor(h_gui_events);
1646
1647 }
1648
1649
1650
1651
1652 LTTV_MODULE("guievents", "Detailed events view", \
1653     "Graphical module to display a detailed event list", \
1654             init, destroy, "lttvwindow", "print")