ltt/branches/poly/lttv/modules/gui/controlflow/drawing.c

   1 /* This file is part of the Linux Trace Toolkit viewer
   2  * Copyright (C) 2003-2004 Mathieu Desnoyers
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License Version 2 as
   6  * published by the Free Software Foundation;
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License
  14  * along with this program; if not, write to the Free Software
  15  * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  16  * MA 02111-1307, USA.
  17  */
  18
  19 #include <gtk/gtk.h>
  20 #include <gdk/gdk.h>
  21 #include <string.h>
  22
  23 #include <lttv/lttv.h>
  24 #include <lttv/tracecontext.h>
  25 #include <lttvwindow/lttvwindow.h>
  26 #include <lttv/state.h>
  27 #include <lttv/hook.h>
  28
  29 #include "drawing.h"
  30 #include "eventhooks.h"
  31 #include "cfv.h"
  32
  33 #define g_info(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_INFO, format)
  34 #define g_debug(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, format)
  35
  36 //FIXME
  37 #define TRACE_NUMBER 0
  38
  39 #if 0 /* colors for two lines representation */
  40 GdkColor drawing_colors[NUM_COLORS] =
  41 { /* Pixel, R, G, B */
  42   { 0, 0, 0, 0 }, /* COL_BLACK */
  43   { 0, 0xFFFF, 0xFFFF, 0xFFFF }, /* COL_WHITE */
  44   { 0, 0x0FFF, 0xFFFF, 0xFFFF }, /* COL_WAIT_FORK : pale blue */
  45   { 0, 0xFFFF, 0xFFFF, 0x0000 }, /* COL_WAIT_CPU : yellow */
  46   { 0, 0xFFFF, 0xA000, 0xFCFF }, /* COL_EXIT : pale magenta */
  47   { 0, 0xFFFF, 0x0000, 0xFFFF }, /* COL_ZOMBIE : purple */
  48   { 0, 0xFFFF, 0x0000, 0x0000 }, /* COL_WAIT : red */
  49   { 0, 0x0000, 0xFFFF, 0x0000 }, /* COL_RUN : green */
  50   { 0, 0x8800, 0xFFFF, 0x8A00 }, /* COL_USER_MODE : pale green */
  51   { 0, 0x09FF, 0x01FF, 0xFFFF }, /* COL_SYSCALL : blue */
  52   { 0, 0xF900, 0x4200, 0xFF00 }, /* COL_TRAP : pale purple */
  53   { 0, 0xFFFF, 0x5AFF, 0x01FF }, /* COL_IRQ : orange */
  54   { 0, 0xFFFF, 0xFFFF, 0xFFFF }  /* COL_MODE_UNKNOWN : white */
  55
  56 };
  57 #endif //0
  58
  59
  60 GdkColor drawing_colors[NUM_COLORS] =
  61 { /* Pixel, R, G, B */
  62   { 0, 0, 0, 0 }, /* COL_BLACK */
  63   { 0, 0xFFFF, 0xFFFF, 0xFFFF }, /* COL_WHITE */
  64   { 0, 0x0000, 0xFF00, 0x0000 }, /* COL_RUN_USER_MODE : green */
  65   { 0, 0x0100, 0x9E00, 0xFFFF }, /* COL_RUN_SYSCALL : pale blue */
  66   { 0, 0xFF00, 0xFF00, 0x0100 }, /* COL_RUN_TRAP : yellow */
  67   { 0, 0xFFFF, 0x0000, 0x0000 }, /* COL_RUN_IRQ : red */
  68   { 0, 0xA3FF, 0x0000, 0x0000 }, /* COL_WAIT : dark red */
  69   { 0, 0x7700, 0x7700, 0x0000 }, /* COL_WAIT_CPU : dark yellow */
  70   { 0, 0x6400, 0x0000, 0x5D00 }, /* COL_ZOMBIE : dark purple */
  71   { 0, 0x0700, 0x6400, 0x0000 }, /* COL_WAIT_FORK : dark green */
  72   { 0, 0x8900, 0x0000, 0x8400 }, /* COL_EXIT : "less dark" magenta */
  73   { 0, 0xFFFF, 0xFFFF, 0xFFFF }, /* COL_MODE_UNKNOWN : white */
  74   { 0, 0xFFFF, 0xFFFF, 0xFFFF }  /* COL_UNNAMED : white */
  75
  76 };
  77
  78 /*
  79 RUN+USER MODE green
  80 RUN+SYSCALL
  81 RUN+TRAP
  82 RUN+IRQ
  83 WAIT+foncé
  84 WAIT CPU + WAIT FORK vert foncé ou jaune
  85 IRQ rouge
  86 TRAP: orange
  87 SYSCALL: bleu pâle
  88
  89 ZOMBIE + WAIT EXIT
  90 */
  91
  92
  93 /*****************************************************************************
  94  *                              drawing functions                            *
  95  *****************************************************************************/
  96
  97 static gboolean
  98 expose_ruler( GtkWidget *widget, GdkEventExpose *event, gpointer user_data );
  99
 100 static gboolean
 101 motion_notify_ruler(GtkWidget *widget, GdkEventMotion *event, gpointer user_data);
 102
 103
 104 /* Function responsible for updating the exposed area.
 105  * It must do an events request to the lttvwindow API to ask for this update.
 106  * Note : this function cannot clear the background, because it may
 107  * erase drawing already present (SAFETY).
 108  */
 109 void drawing_data_request(Drawing_t *drawing,
 110       GdkPixmap **pixmap,
 111       gint x, gint y,
 112       gint width,
 113       gint height)
 114 {
 115   if(width < 0) return ;
 116   if(height < 0) return ;
 117
 118   Tab *tab = drawing->control_flow_data->tab;
 119   TimeWindow time_window =
 120               lttvwindow_get_time_window(tab);
 121
 122   ControlFlowData *control_flow_data = drawing->control_flow_data;
 123   //    (ControlFlowData*)g_object_get_data(
 124   //               G_OBJECT(drawing->drawing_area), "control_flow_data");
 125
 126   LttTime start, time_end;
 127   LttTime window_end = time_window.end_time;
 128
 129   g_debug("req : window start_time : %u, %u", time_window.start_time.tv_sec,
 130                                        time_window.start_time.tv_nsec);
 131
 132   g_debug("req : window time width : %u, %u", time_window.time_width.tv_sec,
 133                                        time_window.time_width.tv_nsec);
 134
 135   g_debug("req : window_end : %u, %u", window_end.tv_sec,
 136                                        window_end.tv_nsec);
 137
 138   g_debug("x is : %i, x+width is : %i", x, x+width);
 139
 140   convert_pixels_to_time(drawing->width, x,
 141         time_window,
 142         &start);
 143
 144   convert_pixels_to_time(drawing->width, x+width,
 145         time_window,
 146         &time_end);
 147   time_end = ltt_time_add(time_end, ltt_time_one); // because main window
 148                                                    // doesn't deliver end time.
 149
 150   lttvwindow_events_request_remove_all(tab,
 151                                        control_flow_data);
 152
 153   {
 154     /* find the tracehooks */
 155     LttvTracesetContext *tsc = lttvwindow_get_traceset_context(tab);
 156
 157     LttvTraceset *traceset = tsc->ts;
 158
 159     guint i, k, nb_trace;
 160
 161     LttvTraceState *ts;
 162
 163     LttvTracefileState *tfs;
 164
 165     GArray *hooks;
 166
 167     LttvTraceHook hook;
 168
 169     LttvAttributeValue val;
 170
 171     nb_trace = lttv_traceset_number(traceset);
 172     // FIXME : eventually request for more traces
 173     // for(i = 0 ; i < nb_trace ; i++) {
 174     for(i = 0; i<MIN(TRACE_NUMBER+1, nb_trace);i++)
 175     {
 176       EventsRequest *events_request = g_new(EventsRequest, 1);
 177       // Create the hooks
 178       //LttvHooks *event = lttv_hooks_new();
 179       LttvHooksById *event_by_id = lttv_hooks_by_id_new();
 180       LttvHooks *before_chunk_traceset = lttv_hooks_new();
 181       LttvHooks *after_chunk_traceset = lttv_hooks_new();
 182       LttvHooks *before_request_hook = lttv_hooks_new();
 183       LttvHooks *after_request_hook = lttv_hooks_new();
 184
 185       lttv_hooks_add(before_chunk_traceset,
 186                      before_chunk,
 187                      events_request,
 188                      LTTV_PRIO_DEFAULT);
 189
 190       lttv_hooks_add(after_chunk_traceset,
 191                      after_chunk,
 192                      events_request,
 193                      LTTV_PRIO_DEFAULT);
 194
 195       lttv_hooks_add(before_request_hook,
 196                      before_request,
 197                      events_request,
 198                      LTTV_PRIO_DEFAULT);
 199
 200       lttv_hooks_add(after_request_hook,
 201                      after_request,
 202                      events_request,
 203                      LTTV_PRIO_DEFAULT);
 204
 205
 206       ts = (LttvTraceState *)tsc->traces[i];
 207
 208       /* Find the eventtype id for the following events and register the
 209          associated by id hooks. */
 210
 211       hooks = g_array_new(FALSE, FALSE, sizeof(LttvTraceHook));
 212       g_array_set_size(hooks, 10);
 213
 214       /* before hooks */
 215
 216       lttv_trace_find_hook(ts->parent.t, "core","syscall_entry","syscall_id",
 217     NULL, NULL, before_execmode_hook, &g_array_index(hooks, LttvTraceHook, 0));
 218
 219       lttv_trace_find_hook(ts->parent.t, "core", "syscall_exit", NULL, NULL,
 220           NULL, before_execmode_hook, &g_array_index(hooks, LttvTraceHook, 1));
 221
 222       lttv_trace_find_hook(ts->parent.t, "core", "trap_entry", "trap_id",
 223     NULL, NULL, before_execmode_hook, &g_array_index(hooks, LttvTraceHook, 2));
 224
 225       lttv_trace_find_hook(ts->parent.t, "core", "trap_exit", NULL, NULL, NULL,
 226           before_execmode_hook, &g_array_index(hooks, LttvTraceHook, 3));
 227
 228       lttv_trace_find_hook(ts->parent.t, "core", "irq_entry", "irq_id", NULL,
 229           NULL, before_execmode_hook, &g_array_index(hooks, LttvTraceHook, 4));
 230
 231       lttv_trace_find_hook(ts->parent.t, "core", "irq_exit", NULL, NULL, NULL,
 232           before_execmode_hook, &g_array_index(hooks, LttvTraceHook, 5));
 233
 234       lttv_trace_find_hook(ts->parent.t, "core", "schedchange", "in", "out",
 235         "out_state", before_schedchange_hook,
 236         &g_array_index(hooks, LttvTraceHook, 6));
 237
 238       lttv_trace_find_hook(ts->parent.t, "core", "process", "event_sub_id",
 239           "event_data1", "event_data2", before_process_hook,
 240           &g_array_index(hooks, LttvTraceHook, 7));
 241
 242 #if 0
 243       lttv_trace_find_hook(ts->parent.t, "core", "process_fork", "child_pid",
 244           NULL, NULL, process_fork, &g_array_index(hooks, LttvTraceHook, 7));
 245
 246       lttv_trace_find_hook(ts->parent.t, "core", "process_exit", NULL, NULL,
 247           NULL, process_exit, &g_array_index(hooks, LttvTraceHook, 8));
 248 #endif //0
 249
 250       /* after hooks */
 251
 252 #if 0
 253       /**** DESACTIVATED ****/
 254       lttv_trace_find_hook(ts->parent.t, "core","syscall_entry","syscall_id",
 255     NULL, NULL, after_execmode_hook, &g_array_index(hooks, LttvTraceHook, 8));
 256       /**** DESACTIVATED ****/
 257       lttv_trace_find_hook(ts->parent.t, "core", "syscall_exit", NULL, NULL,
 258           NULL, after_execmode_hook, &g_array_index(hooks, LttvTraceHook, 9));
 259
 260       /**** DESACTIVATED ****/
 261       lttv_trace_find_hook(ts->parent.t, "core", "trap_entry", "trap_id",
 262     NULL, NULL, after_execmode_hook, &g_array_index(hooks, LttvTraceHook, 10));
 263
 264       /**** DESACTIVATED ****/
 265       lttv_trace_find_hook(ts->parent.t, "core", "trap_exit", NULL, NULL, NULL,
 266           after_execmode_hook, &g_array_index(hooks, LttvTraceHook, 11));
 267
 268       /**** DESACTIVATED ****/
 269       lttv_trace_find_hook(ts->parent.t, "core", "irq_entry", "irq_id", NULL,
 270           NULL, after_execmode_hook, &g_array_index(hooks, LttvTraceHook, 12));
 271
 272       /**** DESACTIVATED ****/
 273       lttv_trace_find_hook(ts->parent.t, "core", "irq_exit", NULL, NULL, NULL,
 274           after_execmode_hook, &g_array_index(hooks, LttvTraceHook, 13));
 275 #endif //0
 276
 277       lttv_trace_find_hook(ts->parent.t, "core", "schedchange", "in", "out",
 278         "out_state", after_schedchange_hook,
 279         &g_array_index(hooks, LttvTraceHook, 8));
 280
 281       lttv_trace_find_hook(ts->parent.t, "core", "process", "event_sub_id",
 282           "event_data1", "event_data2", after_process_hook,
 283           &g_array_index(hooks, LttvTraceHook, 9));
 284
 285 #if 0
 286       lttv_trace_find_hook(ts->parent.t, "core", "process_fork", "child_pid",
 287           NULL, NULL, process_fork, &g_array_index(hooks, LttvTraceHook, 7));
 288
 289       lttv_trace_find_hook(ts->parent.t, "core", "process_exit", NULL, NULL,
 290           NULL, process_exit, &g_array_index(hooks, LttvTraceHook, 8));
 291 #endif //0
 292
 293
 294
 295       /* Add these hooks to each event_by_id hooks list */
 296       /* add before */
 297       for(k = 0 ; k < 8 ; k++) {
 298         hook = g_array_index(hooks, LttvTraceHook, k);
 299         lttv_hooks_add(lttv_hooks_by_id_find(event_by_id,
 300                         hook.id), hook.h,
 301                         events_request,
 302                         LTTV_PRIO_STATE-5);
 303       }
 304
 305       /* add after */
 306       for(k = 8 ; k < 10 ; k++) {
 307         hook = g_array_index(hooks, LttvTraceHook, k);
 308         lttv_hooks_add(lttv_hooks_by_id_find(event_by_id,
 309                        hook.id), hook.h,
 310                        events_request,
 311                        LTTV_PRIO_STATE+5);
 312       }
 313
 314       events_request->hooks = hooks;
 315
 316       // Fill the events request
 317       events_request->owner = control_flow_data;
 318       events_request->viewer_data = control_flow_data;
 319       events_request->servicing = FALSE;
 320       events_request->start_time = start;
 321       events_request->start_position = NULL;
 322       events_request->stop_flag = FALSE;
 323       events_request->end_time = time_end;
 324       events_request->num_events = G_MAXUINT;
 325       events_request->end_position = NULL;
 326       events_request->trace = i;    /* FIXME */
 327       events_request->before_chunk_traceset = before_chunk_traceset;
 328       events_request->before_chunk_trace = NULL;
 329       events_request->before_chunk_tracefile = NULL;
 330       events_request->event = NULL;
 331       events_request->event_by_id = event_by_id;
 332       events_request->after_chunk_tracefile = NULL;
 333       events_request->after_chunk_trace = NULL;
 334       events_request->after_chunk_traceset = after_chunk_traceset;
 335       events_request->before_request = before_request_hook;
 336       events_request->after_request = after_request_hook;
 337
 338       g_debug("req : start : %u, %u", start.tv_sec,
 339                                           start.tv_nsec);
 340
 341       g_debug("req : end : %u, %u", time_end.tv_sec,
 342                                          time_end.tv_nsec);
 343
 344       lttvwindow_events_request(tab, events_request);
 345
 346     }
 347
 348   }
 349
 350 #if 0
 351   lttv_hooks_add(event,
 352                  before_schedchange_hook,
 353                  events_request,
 354                  LTTV_PRIO_STATE-5);
 355   lttv_hooks_add(event,
 356                  after_schedchange_hook,
 357                  events_request,
 358                  LTTV_PRIO_STATE+5);
 359   lttv_hooks_add(event,
 360                  before_execmode_hook,
 361                  events_request,
 362                  LTTV_PRIO_STATE-5);
 363   lttv_hooks_add(event,
 364                  after_execmode_hook,
 365                  events_request,
 366                  LTTV_PRIO_STATE+5);
 367   lttv_hooks_add(event,
 368                  before_process_hook,
 369                  events_request,
 370                  LTTV_PRIO_STATE-5);
 371   lttv_hooks_add(event,
 372                  after_process_hook,
 373                  events_request,
 374                  LTTV_PRIO_STATE+5);
 375 #endif //0
 376
 377 }
 378
 379
 380 static void set_last_start(gpointer key, gpointer value, gpointer user_data)
 381 {
 382   ProcessInfo *process_info = (ProcessInfo*)key;
 383   HashedProcessData *hashed_process_data = (HashedProcessData*)value;
 384   guint x = (guint)user_data;
 385
 386   hashed_process_data->x.over = x;
 387   hashed_process_data->x.over_used = FALSE;
 388   hashed_process_data->x.over_marked = FALSE;
 389   hashed_process_data->x.middle = x;
 390   hashed_process_data->x.middle_used = FALSE;
 391   hashed_process_data->x.middle_marked = FALSE;
 392   hashed_process_data->x.under = x;
 393   hashed_process_data->x.under_used = FALSE;
 394   hashed_process_data->x.under_marked = FALSE;
 395   hashed_process_data->next_good_time = ltt_time_zero;
 396
 397   return;
 398 }
 399
 400 void drawing_data_request_begin(EventsRequest *events_request, LttvTracesetState *tss)
 401 {
 402   g_debug("Begin of data request");
 403   ControlFlowData *cfd = events_request->viewer_data;
 404   LttvTracesetContext *tsc = LTTV_TRACESET_CONTEXT(tss);
 405   TimeWindow time_window =
 406     lttvwindow_get_time_window(cfd->tab);
 407   LttTime end_time = time_window.end_time;
 408
 409   guint width = cfd->drawing->width;
 410   guint x=0;
 411
 412   cfd->drawing->last_start = events_request->start_time;
 413
 414   convert_time_to_pixels(
 415           time_window,
 416           events_request->start_time,
 417           width,
 418           &x);
 419
 420   g_hash_table_foreach(cfd->process_list->process_hash, set_last_start,
 421                             (gpointer)x);
 422
 423 }
 424
 425 void drawing_chunk_begin(EventsRequest *events_request, LttvTracesetState *tss)
 426 {
 427   g_debug("Begin of chunk");
 428   ControlFlowData *cfd = events_request->viewer_data;
 429   LttvTracesetContext *tsc = LTTV_TRACESET_CONTEXT(tss);
 430   LttTime current_time = lttv_traceset_context_get_current_tfc(tsc)->timestamp;
 431   guint num_cpu =
 432     ltt_trace_per_cpu_tracefile_number(tss->parent.traces[TRACE_NUMBER]->t);
 433
 434   cfd->process_list->current_hash_data = g_new(HashedProcessData*,num_cpu);
 435   memset(cfd->process_list->current_hash_data, 0,
 436          sizeof(HashedProcessData*)*num_cpu);
 437   //cfd->drawing->last_start = LTT_TIME_MIN(current_time,
 438   //                                        events_request->end_time);
 439 }
 440
 441
 442 void drawing_request_expose(EventsRequest *events_request,
 443                             LttvTracesetState *tss,
 444                             LttTime end_time)
 445 {
 446   gint x, x_end, width;
 447
 448   ControlFlowData *cfd = events_request->viewer_data;
 449   LttvTracesetContext *tsc = LTTV_TRACESET_CONTEXT(tss);
 450   Drawing_t *drawing = cfd->drawing;
 451
 452   TimeWindow time_window =
 453         lttvwindow_get_time_window(cfd->tab);
 454
 455   g_debug("request expose");
 456
 457   LttTime window_end = time_window.end_time;
 458
 459 #if 0
 460   convert_time_to_pixels(
 461         time_window,
 462         cfd->drawing->last_start,
 463         drawing->width,
 464         &x);
 465
 466 #endif //0
 467   convert_time_to_pixels(
 468         time_window,
 469         end_time,
 470         drawing->width,
 471         &x_end);
 472   x = drawing->damage_begin;
 473  // x_end = drawing->damage_end;
 474   width = x_end - x;
 475
 476   drawing->damage_begin = x+width;
 477   //drawing->damage_end = drawing->width;
 478
 479   /* ask for the buffer to be redrawn */
 480
 481   //gtk_widget_queue_draw_area ( drawing->drawing_area,
 482   //                             0, 0,
 483   //                             drawing->width, drawing->height);
 484
 485   /* FIXME
 486    * will need more precise pixel_to_time and time_to_pixel conversion
 487    * functions to redraw only the needed area. */
 488   gtk_widget_queue_draw_area ( drawing->drawing_area,
 489                                x, 0,
 490                                width, drawing->height);
 491
 492 }
 493
 494
 495 /* Callbacks */
 496
 497
 498 /* Create a new backing pixmap of the appropriate size */
 499 /* As the scaling will always change, it's of no use to copy old
 500  * pixmap.
 501  *
 502  * Only change the size if width changes. The height is specified and changed
 503  * when process ID are added or removed from the process list.
 504  */
 505 static gboolean
 506 configure_event( GtkWidget *widget, GdkEventConfigure *event,
 507     gpointer user_data)
 508 {
 509   Drawing_t *drawing = (Drawing_t*)user_data;
 510
 511
 512   /* First, get the new time interval of the main window */
 513   /* we assume (see documentation) that the main window
 514    * has updated the time interval before this configure gets
 515    * executed.
 516    */
 517   //lttvwindow_get_time_window(drawing->control_flow_data->mw,
 518   //      &drawing->control_flow_data->time_window);
 519
 520   /* New pixmap, size of the configure event */
 521   //GdkPixmap *pixmap = gdk_pixmap_new(widget->window,
 522   //      widget->allocation.width + SAFETY,
 523   //      widget->allocation.height + SAFETY,
 524   //      -1);
 525
 526   if(widget->allocation.width != drawing->width) {
 527     g_debug("drawing configure event");
 528     g_debug("New alloc draw size : %i by %i",widget->allocation.width,
 529                                     widget->allocation.height);
 530
 531
 532     if (drawing->pixmap)
 533       gdk_pixmap_unref(drawing->pixmap);
 534
 535     drawing->width = widget->allocation.width;
 536     //drawing->height = widget->allocation.height;
 537
 538     drawing->pixmap = gdk_pixmap_new(widget->window,
 539                                      drawing->width + SAFETY,
 540                                      drawing->height,
 541                                      -1);
 542     //ProcessList_get_height
 543     // (GuiControlFlow_get_process_list(drawing->control_flow_data)),
 544
 545
 546     // Clear the image
 547     gdk_draw_rectangle (drawing->pixmap,
 548           widget->style->black_gc,
 549           TRUE,
 550           0, 0,
 551           drawing->width+SAFETY,
 552           drawing->height);
 553
 554     //g_info("init data request");
 555
 556
 557     /* Initial data request */
 558     /* no, do initial data request in the expose event */
 559     // Do not need to ask for data of 1 pixel : not synchronized with
 560     // main window time at this moment.
 561     //drawing_data_request(drawing, &drawing->pixmap, 0, 0,
 562     //    widget->allocation.width,
 563     //    widget->allocation.height);
 564
 565     //drawing->width = widget->allocation.width;
 566     //drawing->height = widget->allocation.height;
 567
 568     drawing->damage_begin = 0;
 569     drawing->damage_end = widget->allocation.width;
 570
 571     if(drawing->damage_begin < drawing->damage_end)
 572     {
 573       drawing_data_request(drawing,
 574                            &drawing->pixmap,
 575                            drawing->damage_begin,
 576                            0,
 577                            drawing->damage_end - drawing->damage_begin,
 578                            drawing->height);
 579     }
 580   }
 581   return TRUE;
 582 }
 583
 584
 585 /* Redraw the screen from the backing pixmap */
 586 static gboolean
 587 expose_event( GtkWidget *widget, GdkEventExpose *event, gpointer user_data )
 588 {
 589   Drawing_t *drawing = (Drawing_t*)user_data;
 590
 591   ControlFlowData *control_flow_data =
 592       (ControlFlowData*)g_object_get_data(
 593                 G_OBJECT(widget),
 594                 "control_flow_data");
 595   if(unlikely(drawing->gc == NULL)) {
 596     drawing->gc = gdk_gc_new(drawing->drawing_area->window);
 597     gdk_gc_copy(drawing->gc, drawing->drawing_area->style->black_gc);
 598   }
 599
 600   TimeWindow time_window =
 601       lttvwindow_get_time_window(control_flow_data->tab);
 602   LttTime current_time =
 603       lttvwindow_get_current_time(control_flow_data->tab);
 604
 605   guint cursor_x=0;
 606
 607   LttTime window_end = time_window.end_time;
 608
 609   /* update the screen from the pixmap buffer */
 610   gdk_draw_pixmap(widget->window,
 611       widget->style->fg_gc[GTK_WIDGET_STATE (widget)],
 612       drawing->pixmap,
 613       event->area.x, event->area.y,
 614       event->area.x, event->area.y,
 615       event->area.width, event->area.height);
 616
 617
 618   if(ltt_time_compare(time_window.start_time, current_time) <= 0 &&
 619            ltt_time_compare(window_end, current_time) >= 0)
 620   {
 621     /* Draw the dotted lines */
 622     convert_time_to_pixels(
 623           time_window,
 624           current_time,
 625           drawing->width,
 626           &cursor_x);
 627
 628
 629     if(drawing->dotted_gc == NULL) {
 630
 631       drawing->dotted_gc = gdk_gc_new(drawing->drawing_area->window);
 632       gdk_gc_copy(drawing->dotted_gc, widget->style->white_gc);
 633
 634       gint8 dash_list[] = { 1, 2 };
 635       gdk_gc_set_line_attributes(drawing->dotted_gc,
 636                                  1,
 637                                  GDK_LINE_ON_OFF_DASH,
 638                                  GDK_CAP_BUTT,
 639                                  GDK_JOIN_MITER);
 640       gdk_gc_set_dashes(drawing->dotted_gc,
 641                         0,
 642                         dash_list,
 643                         2);
 644     }
 645
 646     drawing_draw_line(NULL, widget->window,
 647                   cursor_x, 0,
 648                   cursor_x, drawing->height,
 649                   drawing->dotted_gc);
 650   }
 651   return FALSE;
 652 }
 653
 654 static gboolean
 655 after_expose_event( GtkWidget *widget, GdkEventExpose *event, gpointer user_data )
 656 {
 657   //g_assert(0);
 658   g_debug("AFTER EXPOSE");
 659
 660   return FALSE;
 661
 662
 663 }
 664
 665 #if 0
 666 void
 667 tree_row_activated(GtkTreeModel *treemodel,
 668                    GtkTreePath *arg1,
 669                    GtkTreeViewColumn *arg2,
 670                    gpointer user_data)
 671 {
 672   ControlFlowData *cfd = (ControlFlowData*)user_data;
 673   Drawing_t *drawing = cfd->drawing;
 674   GtkTreeView *treeview = cfd->process_list->process_list_widget;
 675   gint *path_indices;
 676   gint height;
 677
 678   path_indices =  gtk_tree_path_get_indices (arg1);
 679
 680   height = get_cell_height(cfd->process_list,
 681         GTK_TREE_VIEW(treeview));
 682   drawing->horizontal_sel = height * path_indices[0];
 683   g_critical("new hor sel : %i", drawing->horizontal_sel);
 684 }
 685 #endif //0
 686
 687 /* mouse click */
 688 static gboolean
 689 button_press_event( GtkWidget *widget, GdkEventButton *event, gpointer user_data )
 690 {
 691   ControlFlowData *control_flow_data =
 692       (ControlFlowData*)g_object_get_data(
 693                 G_OBJECT(widget),
 694                 "control_flow_data");
 695   Drawing_t *drawing = control_flow_data->drawing;
 696   TimeWindow time_window =
 697                lttvwindow_get_time_window(control_flow_data->tab);
 698
 699   g_debug("click");
 700   if(event->button == 1)
 701   {
 702     LttTime time;
 703
 704     LttTime window_end = time_window.end_time;
 705
 706
 707     /* left mouse button click */
 708     g_debug("x click is : %f", event->x);
 709
 710     convert_pixels_to_time(drawing->width, (guint)event->x,
 711         time_window,
 712         &time);
 713
 714     lttvwindow_report_current_time(control_flow_data->tab, time);
 715
 716   }
 717
 718   return FALSE;
 719 }
 720
 721 static gboolean
 722 scrollbar_size_allocate(GtkWidget *widget,
 723                         GtkAllocation *allocation,
 724                         gpointer user_data)
 725 {
 726   Drawing_t *drawing = (Drawing_t*)user_data;
 727
 728   gtk_widget_set_size_request(drawing->padding, allocation->width, -1);
 729   //gtk_widget_queue_resize(drawing->padding);
 730   //gtk_widget_queue_resize(drawing->ruler);
 731   gtk_container_check_resize(GTK_CONTAINER(drawing->ruler_hbox));
 732   return 0;
 733 }
 734
 735
 736
 737 Drawing_t *drawing_construct(ControlFlowData *control_flow_data)
 738 {
 739   Drawing_t *drawing = g_new(Drawing_t, 1);
 740
 741   drawing->control_flow_data = control_flow_data;
 742
 743   drawing->vbox = gtk_vbox_new(FALSE, 1);
 744
 745
 746   drawing->ruler_hbox = gtk_hbox_new(FALSE, 1);
 747   drawing->ruler = gtk_drawing_area_new ();
 748   //gtk_widget_set_size_request(drawing->ruler, -1, 27);
 749
 750   drawing->padding = gtk_drawing_area_new ();
 751   //gtk_widget_set_size_request(drawing->padding, -1, 27);
 752   gtk_box_pack_start(GTK_BOX(drawing->ruler_hbox), drawing->ruler,
 753                      TRUE, TRUE, 0);
 754   gtk_box_pack_end(GTK_BOX(drawing->ruler_hbox), drawing->padding,
 755                      FALSE, FALSE, 0);
 756
 757
 758
 759   drawing->drawing_area = gtk_drawing_area_new ();
 760
 761   drawing->gc = NULL;
 762
 763   drawing->hbox = gtk_hbox_new(FALSE, 1);
 764   drawing->viewport = gtk_viewport_new(NULL, control_flow_data->v_adjust);
 765   drawing->scrollbar = gtk_vscrollbar_new(control_flow_data->v_adjust);
 766   gtk_box_pack_start(GTK_BOX(drawing->hbox), drawing->viewport,
 767                      TRUE, TRUE, 0);
 768   gtk_box_pack_end(GTK_BOX(drawing->hbox), drawing->scrollbar,
 769                      FALSE, FALSE, 0);
 770
 771   //drawing->scrolled_window =
 772   //    gtk_scrolled_window_new (NULL,
 773   //    control_flow_data->v_adjust);
 774
 775   //gtk_scrolled_window_set_policy(
 776   //  GTK_SCROLLED_WINDOW(drawing->scrolled_window),
 777   //  GTK_POLICY_NEVER,
 778   //  GTK_POLICY_AUTOMATIC);
 779
 780   gtk_container_add(GTK_CONTAINER(drawing->viewport),
 781                     drawing->drawing_area);
 782   //gtk_scrolled_window_add_with_viewport(
 783   //  GTK_SCROLLED_WINDOW(drawing->scrolled_window),
 784   //  drawing->drawing_area);
 785
 786   gtk_box_pack_start(GTK_BOX(drawing->vbox), drawing->ruler_hbox,
 787                      FALSE, FALSE, 0);
 788   gtk_box_pack_end(GTK_BOX(drawing->vbox), drawing->hbox,
 789                    TRUE, TRUE, 0);
 790
 791   drawing->pango_layout =
 792     gtk_widget_create_pango_layout(drawing->drawing_area, NULL);
 793
 794   drawing->dotted_gc = NULL;
 795
 796   drawing->height = 1;
 797   drawing->width = 1;
 798   drawing->depth = 0;
 799
 800   drawing->damage_begin = 0;
 801   drawing->damage_end = 0;
 802   drawing->horizontal_sel = -1;
 803
 804   //gtk_widget_set_size_request(drawing->drawing_area->window, 50, 50);
 805   g_object_set_data_full(
 806       G_OBJECT(drawing->drawing_area),
 807       "Link_drawing_Data",
 808       drawing,
 809       (GDestroyNotify)drawing_destroy);
 810
 811   g_object_set_data(
 812       G_OBJECT(drawing->ruler),
 813       "drawing",
 814       drawing);
 815
 816
 817   //gtk_widget_modify_bg( drawing->drawing_area,
 818   //      GTK_STATE_NORMAL,
 819   //      &CF_Colors[BLACK]);
 820
 821   //gdk_window_get_geometry(drawing->drawing_area->window,
 822   //    NULL, NULL,
 823   //    &(drawing->width),
 824   //    &(drawing->height),
 825   //    -1);
 826
 827   //drawing->pixmap = gdk_pixmap_new(
 828   //    drawing->drawing_area->window,
 829   //    drawing->width,
 830   //    drawing->height,
 831   //    drawing->depth);
 832
 833   drawing->pixmap = NULL;
 834
 835 //  drawing->pixmap = gdk_pixmap_new(drawing->drawing_area->window,
 836 //        drawing->drawing_area->allocation.width,
 837 //        drawing->drawing_area->allocation.height,
 838 //        -1);
 839
 840   g_signal_connect (G_OBJECT(drawing->drawing_area),
 841         "configure_event",
 842         G_CALLBACK (configure_event),
 843         (gpointer)drawing);
 844
 845   g_signal_connect (G_OBJECT(drawing->ruler),
 846         "expose_event",
 847         G_CALLBACK(expose_ruler),
 848         (gpointer)drawing);
 849
 850   gtk_widget_add_events(drawing->ruler, GDK_POINTER_MOTION_MASK);
 851
 852   g_signal_connect (G_OBJECT(drawing->ruler),
 853         "motion-notify-event",
 854         G_CALLBACK(motion_notify_ruler),
 855         (gpointer)drawing);
 856
 857
 858   g_signal_connect (G_OBJECT(drawing->scrollbar),
 859         "size-allocate",
 860         G_CALLBACK(scrollbar_size_allocate),
 861         (gpointer)drawing);
 862
 863
 864
 865   g_signal_connect (G_OBJECT(drawing->drawing_area),
 866         "expose_event",
 867         G_CALLBACK (expose_event),
 868         (gpointer)drawing);
 869
 870   g_signal_connect_after (G_OBJECT(drawing->drawing_area),
 871         "expose_event",
 872         G_CALLBACK (after_expose_event),
 873         (gpointer)drawing);
 874
 875   g_signal_connect (G_OBJECT(drawing->drawing_area),
 876         "button-press-event",
 877         G_CALLBACK (button_press_event),
 878         (gpointer)drawing);
 879
 880   gtk_widget_show(drawing->ruler);
 881   gtk_widget_show(drawing->padding);
 882   gtk_widget_show(drawing->ruler_hbox);
 883
 884   gtk_widget_show(drawing->drawing_area);
 885   //gtk_widget_show(drawing->scrolled_window);
 886   gtk_widget_show(drawing->viewport);
 887   gtk_widget_show(drawing->scrollbar);
 888   gtk_widget_show(drawing->hbox);
 889
 890   /* Allocate the colors */
 891   GdkColormap* colormap = gdk_colormap_get_system();
 892   gboolean success[NUM_COLORS];
 893   gdk_colormap_alloc_colors(colormap, drawing_colors, NUM_COLORS, FALSE,
 894                             TRUE, success);
 895
 896   return drawing;
 897 }
 898
 899 void drawing_destroy(Drawing_t *drawing)
 900 {
 901   g_info("drawing_destroy %p", drawing);
 902
 903   /* Free the colors */
 904   GdkColormap* colormap = gdk_colormap_get_system();
 905
 906   gdk_colormap_free_colors(colormap, drawing_colors, NUM_COLORS);
 907
 908
 909
 910   // Do not unref here, Drawing_t destroyed by it's widget.
 911   //g_object_unref( G_OBJECT(drawing->drawing_area));
 912   if(drawing->gc != NULL)
 913     gdk_gc_unref(drawing->gc);
 914
 915   g_free(drawing->pango_layout);
 916   if(!drawing->dotted_gc) gdk_gc_unref(drawing->dotted_gc);
 917   g_free(drawing);
 918   g_info("drawing_destroy end");
 919 }
 920
 921 GtkWidget *drawing_get_drawing_area(Drawing_t *drawing)
 922 {
 923   return drawing->drawing_area;
 924 }
 925
 926 GtkWidget *drawing_get_widget(Drawing_t *drawing)
 927 {
 928   return drawing->vbox;
 929 }
 930
 931 void drawing_draw_line( Drawing_t *drawing,
 932       GdkPixmap *pixmap,
 933       guint x1, guint y1,
 934       guint x2, guint y2,
 935       GdkGC *GC)
 936 {
 937   gdk_draw_line (pixmap,
 938       GC,
 939       x1, y1, x2, y2);
 940 }
 941
 942 void drawing_clear(Drawing_t *drawing)
 943 {
 944   if (drawing->pixmap)
 945     gdk_pixmap_unref(drawing->pixmap);
 946
 947   drawing->height = 1;
 948   /* Allocate a new pixmap with new height */
 949   drawing->pixmap = gdk_pixmap_new(drawing->drawing_area->window,
 950                                    drawing->width + SAFETY,
 951                                    drawing->height,
 952                                      -1);
 953
 954   gtk_widget_set_size_request(drawing->drawing_area,
 955                              -1,
 956                              drawing->height);
 957   gtk_widget_queue_resize_no_redraw(drawing->drawing_area);
 958
 959   /* ask for the buffer to be redrawn */
 960   gtk_widget_queue_draw_area ( drawing->drawing_area,
 961                                0, 0,
 962                                drawing->width, drawing->height);
 963 }
 964
 965
 966 /* Insert a square corresponding to a new process in the list */
 967 /* Applies to whole drawing->width */
 968 void drawing_insert_square(Drawing_t *drawing,
 969         guint y,
 970         guint height)
 971 {
 972   //GdkRectangle update_rect;
 973
 974   /* Allocate a new pixmap with new height */
 975   GdkPixmap *pixmap = gdk_pixmap_new(drawing->drawing_area->window,
 976         drawing->width + SAFETY,
 977         drawing->height + height,
 978         -1);
 979
 980   /* Copy the high region */
 981   gdk_draw_drawable (pixmap,
 982     drawing->drawing_area->style->black_gc,
 983     drawing->pixmap,
 984     0, 0,
 985     0, 0,
 986     drawing->width + SAFETY, y);
 987
 988
 989
 990
 991   /* add an empty square */
 992   gdk_draw_rectangle (pixmap,
 993     drawing->drawing_area->style->black_gc,
 994     TRUE,
 995     0, y,
 996     drawing->width + SAFETY,  // do not overlap
 997     height);
 998
 999
1000
1001   /* copy the bottom of the region */
1002   gdk_draw_drawable (pixmap,
1003     drawing->drawing_area->style->black_gc,
1004     drawing->pixmap,
1005     0, y,
1006     0, y + height,
1007     drawing->width+SAFETY, drawing->height - y);
1008
1009
1010   if(likely(drawing->pixmap))
1011     gdk_pixmap_unref(drawing->pixmap);
1012
1013   drawing->pixmap = pixmap;
1014
1015   if(unlikely(drawing->height==1)) drawing->height = height;
1016   else drawing->height += height;
1017
1018   gtk_widget_set_size_request(drawing->drawing_area,
1019                              -1,
1020                              drawing->height);
1021   gtk_widget_queue_resize_no_redraw(drawing->drawing_area);
1022
1023   /* ask for the buffer to be redrawn */
1024   gtk_widget_queue_draw_area ( drawing->drawing_area,
1025                                0, y,
1026                                drawing->width, drawing->height-y);
1027 }
1028
1029
1030 /* Remove a square corresponding to a removed process in the list */
1031 void drawing_remove_square(Drawing_t *drawing,
1032         guint y,
1033         guint height)
1034 {
1035   GdkPixmap *pixmap;
1036
1037   if(unlikely(drawing->height == height)) {
1038     pixmap = gdk_pixmap_new(
1039         drawing->drawing_area->window,
1040         drawing->width + SAFETY,
1041         1,
1042         -1);
1043     drawing->height=1;
1044   } else {
1045     /* Allocate a new pixmap with new height */
1046      pixmap = gdk_pixmap_new(
1047         drawing->drawing_area->window,
1048         drawing->width + SAFETY,
1049         drawing->height - height,
1050         -1);
1051
1052     /* Copy the high region */
1053     gdk_draw_drawable (pixmap,
1054       drawing->drawing_area->style->black_gc,
1055       drawing->pixmap,
1056       0, 0,
1057       0, 0,
1058       drawing->width + SAFETY, y);
1059
1060     /* Copy up the bottom of the region */
1061     gdk_draw_drawable (pixmap,
1062       drawing->drawing_area->style->black_gc,
1063       drawing->pixmap,
1064       0, y + height,
1065       0, y,
1066       drawing->width, drawing->height - y - height);
1067
1068     drawing->height-=height;
1069   }
1070
1071   if(likely(drawing->pixmap))
1072     gdk_pixmap_unref(drawing->pixmap);
1073
1074   drawing->pixmap = pixmap;
1075
1076   gtk_widget_set_size_request(drawing->drawing_area,
1077                              -1,
1078                              drawing->height);
1079   gtk_widget_queue_resize_no_redraw(drawing->drawing_area);
1080   /* ask for the buffer to be redrawn */
1081   gtk_widget_queue_draw_area ( drawing->drawing_area,
1082                                0, y,
1083                                drawing->width, MAX(drawing->height-y, 1));
1084 }
1085
1086 void drawing_update_ruler(Drawing_t *drawing, TimeWindow *time_window)
1087 {
1088   GtkRequisition req;
1089   GdkRectangle rect;
1090
1091   req.width = drawing->ruler->allocation.width;
1092   req.height = drawing->ruler->allocation.height;
1093
1094
1095   rect.x = 0;
1096   rect.y = 0;
1097   rect.width = req.width;
1098   rect.height = req.height;
1099
1100   gtk_widget_queue_draw(drawing->ruler);
1101   //gtk_widget_draw( drawing->ruler, &rect);
1102 }
1103
1104 /* Redraw the ruler */
1105 static gboolean
1106 expose_ruler( GtkWidget *widget, GdkEventExpose *event, gpointer user_data )
1107 {
1108   Drawing_t *drawing = (Drawing_t*)user_data;
1109   TimeWindow time_window = lttvwindow_get_time_window(drawing->control_flow_data->tab);
1110   gchar text[255];
1111
1112   PangoContext *context;
1113   PangoLayout *layout;
1114   PangoAttribute *attribute;
1115   PangoFontDescription *FontDesc;
1116   gint Font_Size;
1117   PangoRectangle ink_rect;
1118   guint global_width=0;
1119   GdkColor foreground = { 0, 0, 0, 0 };
1120   GdkColor background = { 0, 0xffff, 0xffff, 0xffff };
1121
1122   LttTime window_end = time_window.end_time;
1123   LttTime half_width =
1124     ltt_time_div(time_window.time_width,2.0);
1125   LttTime window_middle =
1126     ltt_time_add(half_width,
1127                  time_window.start_time);
1128   g_debug("ruler expose event");
1129
1130   gdk_draw_rectangle (drawing->ruler->window,
1131           drawing->ruler->style->white_gc,
1132           TRUE,
1133           event->area.x, event->area.y,
1134           event->area.width,
1135           event->area.height);
1136
1137    GdkGC *gc = gdk_gc_new(drawing->ruler->window);
1138    gdk_gc_copy(gc, drawing->ruler->style->black_gc);
1139    gdk_gc_set_line_attributes(gc,
1140                                2,
1141                                GDK_LINE_SOLID,
1142                                GDK_CAP_BUTT,
1143                                GDK_JOIN_MITER);
1144   gdk_draw_line (drawing->ruler->window,
1145                   gc,
1146                   event->area.x, 1,
1147                   event->area.x + event->area.width, 1);
1148
1149
1150   snprintf(text, 255, "%lus\n%luns",
1151     time_window.start_time.tv_sec,
1152     time_window.start_time.tv_nsec);
1153
1154   layout = gtk_widget_create_pango_layout(drawing->drawing_area, NULL);
1155
1156   context = pango_layout_get_context(layout);
1157   FontDesc = pango_context_get_font_description(context);
1158
1159   pango_font_description_set_size(FontDesc, 6*PANGO_SCALE);
1160   pango_layout_context_changed(layout);
1161
1162   pango_layout_set_text(layout, text, -1);
1163   pango_layout_get_pixel_extents(layout, &ink_rect, NULL);
1164   global_width += ink_rect.width;
1165
1166   gdk_draw_layout_with_colors(drawing->ruler->window,
1167       gc,
1168       0,
1169       6,
1170       layout, &foreground, &background);
1171
1172   gdk_gc_set_line_attributes(gc,
1173                              2,
1174                              GDK_LINE_SOLID,
1175                              GDK_CAP_ROUND,
1176                              GDK_JOIN_ROUND);
1177
1178   gdk_draw_line (drawing->ruler->window,
1179                    gc,
1180                    1, 1,
1181                    1, 7);
1182
1183
1184   snprintf(text, 255, "%lus\n%luns", window_end.tv_sec,
1185                                      window_end.tv_nsec);
1186
1187   pango_layout_set_text(layout, text, -1);
1188   pango_layout_get_pixel_extents(layout, &ink_rect, NULL);
1189   global_width += ink_rect.width;
1190
1191   if(global_width <= drawing->ruler->allocation.width)
1192   {
1193     gdk_draw_layout_with_colors(drawing->ruler->window,
1194       gc,
1195       drawing->ruler->allocation.width - ink_rect.width,
1196       6,
1197       layout, &foreground, &background);
1198
1199     gdk_gc_set_line_attributes(gc,
1200                                2,
1201                                GDK_LINE_SOLID,
1202                                GDK_CAP_ROUND,
1203                                GDK_JOIN_ROUND);
1204
1205     gdk_draw_line (drawing->ruler->window,
1206                    gc,
1207                    drawing->ruler->allocation.width-1, 1,
1208                    drawing->ruler->allocation.width-1, 7);
1209   }
1210
1211
1212   snprintf(text, 255, "%lus\n%luns", window_middle.tv_sec,
1213                                      window_middle.tv_nsec);
1214
1215   pango_layout_set_text(layout, text, -1);
1216   pango_layout_get_pixel_extents(layout, &ink_rect, NULL);
1217   global_width += ink_rect.width;
1218
1219   if(global_width <= drawing->ruler->allocation.width)
1220   {
1221     gdk_draw_layout_with_colors(drawing->ruler->window,
1222       gc,
1223       (drawing->ruler->allocation.width - ink_rect.width)/2,
1224       6,
1225       layout, &foreground, &background);
1226
1227     gdk_gc_set_line_attributes(gc,
1228                                2,
1229                                GDK_LINE_SOLID,
1230                                GDK_CAP_ROUND,
1231                                GDK_JOIN_ROUND);
1232
1233     gdk_draw_line (drawing->ruler->window,
1234                    gc,
1235                    drawing->ruler->allocation.width/2, 1,
1236                    drawing->ruler->allocation.width/2, 7);
1237
1238
1239
1240
1241   }
1242
1243   gdk_gc_unref(gc);
1244   g_object_unref(layout);
1245
1246   return FALSE;
1247 }
1248
1249
1250 /* notify mouse on ruler */
1251 static gboolean
1252 motion_notify_ruler(GtkWidget *widget, GdkEventMotion *event, gpointer user_data)
1253 {
1254   //g_debug("motion");
1255   //eventually follow mouse and show time here
1256 }