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
  22 #include <lttv/processTrace.h>
  23 #include <lttv/gtktraceset.h>
  24 #include <lttv/hook.h>
  25
  26 #include "drawing.h"
  27 #include "cfv.h"
  28 #include "cfv-private.h"
  29 #include "eventhooks.h"
  30
  31 #define g_info(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_INFO, format)
  32 #define g_debug(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, format)
  33
  34 /*****************************************************************************
  35  *                              drawing functions                            *
  36  *****************************************************************************/
  37
  38 //FIXME Colors will need to be dynamic. Graphic context part not done so far.
  39 typedef enum
  40 {
  41   RED,
  42   GREEN,
  43   BLUE,
  44   WHITE,
  45   BLACK
  46
  47 } ControlFlowColors;
  48
  49 /* Vector of unallocated colors */
  50 static GdkColor CF_Colors [] =
  51 {
  52   { 0, 0xffff, 0x0000, 0x0000 },  // RED
  53   { 0, 0x0000, 0xffff, 0x0000 },  // GREEN
  54   { 0, 0x0000, 0x0000, 0xffff },  // BLUE
  55   { 0, 0xffff, 0xffff, 0xffff },  // WHITE
  56   { 0, 0x0000, 0x0000, 0x0000 } // BLACK
  57 };
  58
  59
  60 /* Function responsible for updating the exposed area.
  61  * It must call processTrace() to ask for this update.
  62  * Note : this function cannot clear the background, because it may
  63  * erase drawing already present (SAFETY).
  64  */
  65 void drawing_data_request(Drawing_t *drawing,
  66       GdkPixmap **pixmap,
  67       gint x, gint y,
  68       gint width,
  69       gint height)
  70 {
  71   if(width < 0) return ;
  72   if(height < 0) return ;
  73   ControlFlowData *control_flow_data =
  74       (ControlFlowData*)g_object_get_data(
  75                 G_OBJECT(
  76                     drawing->drawing_area),
  77                 "control_flow_data");
  78
  79   LttTime start, end;
  80   LttTime window_end = ltt_time_add(control_flow_data->time_window.time_width,
  81                         control_flow_data->time_window.start_time);
  82
  83   g_critical("req : window_end : %u, %u", window_end.tv_sec,
  84                                       window_end.tv_nsec);
  85
  86   g_critical("req : time width : %u, %u", control_flow_data->time_window.time_width.tv_sec,
  87                                 control_flow_data->time_window.time_width.tv_nsec);
  88
  89   g_critical("x is : %i, x+width is : %i", x, x+width);
  90
  91   convert_pixels_to_time(drawing->drawing_area->allocation.width, x,
  92         &control_flow_data->time_window.start_time,
  93         &window_end,
  94         &start);
  95
  96   convert_pixels_to_time(drawing->drawing_area->allocation.width, x + width,
  97         &control_flow_data->time_window.start_time,
  98         &window_end,
  99         &end);
 100
 101   LttvTracesetContext * tsc =
 102         get_traceset_context(control_flow_data->mw);
 103
 104     //send_test_process(
 105   //guicontrolflow_get_process_list(drawing->control_flow_data),
 106   //drawing);
 107   //send_test_drawing(
 108   //guicontrolflow_get_process_list(drawing->control_flow_data),
 109   //drawing, *pixmap, x, y, width, height);
 110
 111   // Let's call processTrace() !!
 112   EventRequest event_request; // Variable freed at the end of the function.
 113   event_request.control_flow_data = control_flow_data;
 114   event_request.time_begin = start;
 115   event_request.time_end = end;
 116   event_request.x_begin = x;
 117   event_request.x_end = x+width;
 118
 119   g_critical("req : start : %u, %u", event_request.time_begin.tv_sec,
 120                                       event_request.time_begin.tv_nsec);
 121
 122   g_critical("req : end : %u, %u", event_request.time_end.tv_sec,
 123                                       event_request.time_end.tv_nsec);
 124
 125   LttvHooks *event = lttv_hooks_new();
 126   LttvHooks *after_event = lttv_hooks_new();
 127   LttvHooks *after_traceset = lttv_hooks_new();
 128   lttv_hooks_add(after_traceset, after_data_request, &event_request);
 129   lttv_hooks_add(event, draw_event_hook, &event_request);
 130   //Modified by xiangxiu: state update hooks are added by the main window
 131   //state_add_event_hooks_api(control_flow_data->mw);
 132   lttv_hooks_add(after_event, draw_after_hook, &event_request);
 133
 134   lttv_process_traceset_seek_time(tsc, start);
 135   // FIXME : would like to place the after_traceset hook after the traceset,
 136   // but the traceset context state is not valid anymore.
 137   lttv_traceset_context_add_hooks(tsc,
 138   //    NULL, after_traceset, NULL, NULL, NULL, NULL,
 139       NULL, NULL, NULL, NULL, NULL, NULL,
 140       NULL, after_traceset, NULL, event, after_event);
 141   lttv_process_traceset(tsc, end, G_MAXULONG);
 142   //after_data_request((void*)&event_request,(void*)tsc);
 143   lttv_traceset_context_remove_hooks(tsc,
 144       //NULL, after_traceset, NULL, NULL, NULL, NULL,
 145       NULL, NULL, NULL, NULL, NULL, NULL,
 146       NULL, after_traceset, NULL, event, after_event);
 147   //Modified by xiangxiu: state update hooks are removed by the main window
 148   //state_remove_event_hooks_api(control_flow_data->mw);
 149
 150   lttv_hooks_destroy(after_traceset);
 151   lttv_hooks_destroy(event);
 152   lttv_hooks_destroy(after_event);
 153
 154
 155 }
 156
 157 /* Callbacks */
 158
 159
 160 /* Create a new backing pixmap of the appropriate size */
 161 /* As the scaling will always change, it's of no use to copy old
 162  * pixmap.
 163  */
 164 static gboolean
 165 configure_event( GtkWidget *widget, GdkEventConfigure *event,
 166     gpointer user_data)
 167 {
 168   Drawing_t *drawing = (Drawing_t*)user_data;
 169
 170
 171   /* First, get the new time interval of the main window */
 172   /* we assume (see documentation) that the main window
 173    * has updated the time interval before this configure gets
 174    * executed.
 175    */
 176   get_time_window(drawing->control_flow_data->mw,
 177         &drawing->control_flow_data->time_window);
 178
 179   /* New pixmap, size of the configure event */
 180   //GdkPixmap *pixmap = gdk_pixmap_new(widget->window,
 181   //      widget->allocation.width + SAFETY,
 182   //      widget->allocation.height + SAFETY,
 183   //      -1);
 184
 185   g_critical("drawing configure event");
 186   g_critical("New draw size : %i by %i",widget->allocation.width, widget->allocation.height);
 187
 188
 189   if (drawing->pixmap)
 190     gdk_pixmap_unref(drawing->pixmap);
 191
 192   /* If no old pixmap present */
 193   //if(drawing->pixmap == NULL)
 194   {
 195     drawing->pixmap = gdk_pixmap_new(
 196     widget->window,
 197     widget->allocation.width + SAFETY,
 198     widget->allocation.height + SAFETY,
 199     //ProcessList_get_height
 200     // (GuiControlFlow_get_process_list(drawing->control_flow_data)),
 201     -1);
 202     drawing->width = widget->allocation.width;
 203     drawing->height = widget->allocation.height;
 204
 205
 206     // Clear the image
 207     gdk_draw_rectangle (drawing->pixmap,
 208           widget->style->black_gc,
 209           TRUE,
 210           0, 0,
 211           widget->allocation.width+SAFETY,
 212           widget->allocation.height+SAFETY);
 213
 214     //g_info("init data request");
 215
 216
 217     /* Initial data request */
 218     // Do not need to ask for data of 1 pixel : not synchronized with
 219     // main window time at this moment.
 220     drawing_data_request(drawing, &drawing->pixmap, 0, 0,
 221         widget->allocation.width,
 222         widget->allocation.height);
 223
 224     drawing->width = widget->allocation.width;
 225     drawing->height = widget->allocation.height;
 226
 227     return TRUE;
 228
 229
 230
 231   }
 232 #ifdef NOTUSE
 233 //  /* Draw empty background */
 234 //  gdk_draw_rectangle (pixmap,
 235 //          widget->style->black_gc,
 236 //          TRUE,
 237 //          0, 0,
 238 //          widget->allocation.width,
 239 //          widget->allocation.height);
 240
 241   /* Copy old data to new pixmap */
 242   gdk_draw_drawable (pixmap,
 243     widget->style->black_gc,
 244     drawing->pixmap,
 245     0, 0,
 246     0, 0,
 247     -1, -1);
 248
 249   if (drawing->pixmap)
 250     gdk_pixmap_unref(drawing->pixmap);
 251
 252   drawing->pixmap = pixmap;
 253
 254   // Clear the bottom part of the image (SAFETY)
 255   gdk_draw_rectangle (pixmap,
 256           widget->style->black_gc,
 257           TRUE,
 258           0, drawing->height+SAFETY,
 259           drawing->width+SAFETY,  // do not overlap
 260           (widget->allocation.height) - drawing->height);
 261
 262   // Clear the right part of the image (SAFETY)
 263   gdk_draw_rectangle (pixmap,
 264           widget->style->black_gc,
 265           TRUE,
 266           drawing->width+SAFETY, 0,
 267           (widget->allocation.width) - drawing->width,  // do not overlap
 268           drawing->height+SAFETY);
 269
 270   /* Clear the backgound for data request, but not SAFETY */
 271   gdk_draw_rectangle (pixmap,
 272           drawing->drawing_area->style->black_gc,
 273           TRUE,
 274           drawing->width + SAFETY, 0,
 275           widget->allocation.width - drawing->width,  // do not overlap
 276           widget->allocation.height+SAFETY);
 277
 278   /* Request data for missing space */
 279   g_info("missing data request");
 280   drawing_data_request(drawing, &pixmap, drawing->width, 0,
 281       widget->allocation.width - drawing->width,
 282       widget->allocation.height);
 283
 284   drawing->width = widget->allocation.width;
 285   drawing->height = widget->allocation.height;
 286
 287   return TRUE;
 288 #endif //NOTUSE
 289 }
 290
 291
 292 /* Redraw the screen from the backing pixmap */
 293 static gboolean
 294 expose_event( GtkWidget *widget, GdkEventExpose *event, gpointer user_data )
 295 {
 296   Drawing_t *drawing = (Drawing_t*)user_data;
 297   ControlFlowData *control_flow_data =
 298       (ControlFlowData*)g_object_get_data(
 299                 G_OBJECT(widget),
 300                 "control_flow_data");
 301
 302   g_critical("drawing expose event");
 303
 304   guint x=0;
 305   LttTime* current_time =
 306       guicontrolflow_get_current_time(control_flow_data);
 307
 308   LttTime window_end = ltt_time_add(control_flow_data->time_window.time_width,
 309                       control_flow_data->time_window.start_time);
 310
 311   convert_time_to_pixels(
 312         control_flow_data->time_window.start_time,
 313         window_end,
 314         *current_time,
 315         widget->allocation.width,
 316         &x);
 317
 318   gdk_draw_pixmap(widget->window,
 319       widget->style->fg_gc[GTK_WIDGET_STATE (widget)],
 320       drawing->pixmap,
 321       event->area.x, event->area.y,
 322       event->area.x, event->area.y,
 323       event->area.width, event->area.height);
 324
 325   if(x >= event->area.x && x <= event->area.x+event->area.width)
 326   {
 327     gint8 dash_list[] = { 1, 2 };
 328     GdkGC *gc = gdk_gc_new(control_flow_data->drawing->pixmap);
 329     gdk_gc_copy(gc, widget->style->white_gc);
 330     gdk_gc_set_line_attributes(gc,
 331                                1,
 332                                GDK_LINE_ON_OFF_DASH,
 333                                GDK_CAP_BUTT,
 334                                GDK_JOIN_MITER);
 335     gdk_gc_set_dashes(gc,
 336                       0,
 337                       dash_list,
 338                       2);
 339     drawing_draw_line(NULL, widget->window,
 340                   x, event->area.y,
 341                   x, event->area.y+event->area.height,
 342                   gc);
 343     gdk_gc_unref(gc);
 344   }
 345   return FALSE;
 346 }
 347
 348 /* mouse click */
 349 static gboolean
 350 button_press_event( GtkWidget *widget, GdkEventButton *event, gpointer user_data )
 351 {
 352   ControlFlowData *control_flow_data =
 353       (ControlFlowData*)g_object_get_data(
 354                 G_OBJECT(widget),
 355                 "control_flow_data");
 356   Drawing_t *drawing = control_flow_data->drawing;
 357
 358
 359   g_critical("click");
 360   if(event->button == 1)
 361   {
 362     LttTime time;
 363
 364     LttTime window_end = ltt_time_add(control_flow_data->time_window.time_width,
 365                         control_flow_data->time_window.start_time);
 366
 367
 368     /* left mouse button click */
 369     g_critical("x click is : %f", event->x);
 370
 371     convert_pixels_to_time(widget->allocation.width, (guint)event->x,
 372         &control_flow_data->time_window.start_time,
 373         &window_end,
 374         &time);
 375
 376     set_current_time(control_flow_data->mw, &time);
 377
 378   }
 379
 380   return FALSE;
 381 }
 382
 383
 384
 385
 386 Drawing_t *drawing_construct(ControlFlowData *control_flow_data)
 387 {
 388   Drawing_t *drawing = g_new(Drawing_t, 1);
 389
 390   drawing->drawing_area = gtk_drawing_area_new ();
 391   drawing->control_flow_data = control_flow_data;
 392
 393   drawing->pango_layout =
 394     gtk_widget_create_pango_layout(drawing->drawing_area, NULL);
 395
 396   //gtk_widget_set_size_request(drawing->drawing_area->window, 50, 50);
 397   g_object_set_data_full(
 398       G_OBJECT(drawing->drawing_area),
 399       "Link_drawing_Data",
 400       drawing,
 401       (GDestroyNotify)drawing_destroy);
 402
 403   //gtk_widget_modify_bg( drawing->drawing_area,
 404   //      GTK_STATE_NORMAL,
 405   //      &CF_Colors[BLACK]);
 406
 407   //gdk_window_get_geometry(drawing->drawing_area->window,
 408   //    NULL, NULL,
 409   //    &(drawing->width),
 410   //    &(drawing->height),
 411   //    -1);
 412
 413   //drawing->pixmap = gdk_pixmap_new(
 414   //    drawing->drawing_area->window,
 415   //    drawing->width,
 416   //    drawing->height,
 417   //    drawing->depth);
 418
 419   drawing->pixmap = NULL;
 420
 421 //  drawing->pixmap = gdk_pixmap_new(drawing->drawing_area->window,
 422 //        drawing->drawing_area->allocation.width,
 423 //        drawing->drawing_area->allocation.height,
 424 //        -1);
 425
 426   gtk_widget_add_events(drawing->drawing_area, GDK_BUTTON_PRESS_MASK);
 427
 428   g_signal_connect (G_OBJECT(drawing->drawing_area),
 429         "configure_event",
 430         G_CALLBACK (configure_event),
 431         (gpointer)drawing);
 432
 433   g_signal_connect (G_OBJECT(drawing->drawing_area),
 434         "expose_event",
 435         G_CALLBACK (expose_event),
 436         (gpointer)drawing);
 437
 438   g_signal_connect (G_OBJECT(drawing->drawing_area),
 439         "button-press-event",
 440         G_CALLBACK (button_press_event),
 441         (gpointer)drawing);
 442
 443
 444   return drawing;
 445 }
 446
 447 void drawing_destroy(Drawing_t *drawing)
 448 {
 449
 450   // Do not unref here, Drawing_t destroyed by it's widget.
 451   //g_object_unref( G_OBJECT(drawing->drawing_area));
 452
 453   g_free(drawing->pango_layout);
 454   g_free(drawing);
 455 }
 456
 457 GtkWidget *drawing_get_widget(Drawing_t *drawing)
 458 {
 459   return drawing->drawing_area;
 460 }
 461
 462 /* convert_pixels_to_time
 463  *
 464  * Convert from window pixel and time interval to an absolute time.
 465  */
 466 void convert_pixels_to_time(
 467     gint width,
 468     guint x,
 469     LttTime *window_time_begin,
 470     LttTime *window_time_end,
 471     LttTime *time)
 472 {
 473   LttTime window_time_interval;
 474
 475   window_time_interval = ltt_time_sub(*window_time_end,
 476             *window_time_begin);
 477   *time = ltt_time_mul(window_time_interval, (x/(float)width));
 478   *time = ltt_time_add(*window_time_begin, *time);
 479 }
 480
 481
 482
 483 void convert_time_to_pixels(
 484     LttTime window_time_begin,
 485     LttTime window_time_end,
 486     LttTime time,
 487     int width,
 488     guint *x)
 489 {
 490   LttTime window_time_interval;
 491   float interval_float, time_float;
 492
 493   window_time_interval = ltt_time_sub(window_time_end,window_time_begin);
 494
 495   time = ltt_time_sub(time, window_time_begin);
 496
 497   interval_float = ltt_time_to_double(window_time_interval);
 498   time_float = ltt_time_to_double(time);
 499
 500   *x = (guint)(time_float/interval_float * width);
 501
 502 }
 503
 504 void drawing_refresh (  Drawing_t *drawing,
 505       guint x, guint y,
 506       guint width, guint height)
 507 {
 508   g_info("Drawing.c : drawing_refresh %u, %u, %u, %u", x, y, width, height);
 509   GdkRectangle update_rect;
 510
 511   gdk_draw_drawable(
 512     drawing->drawing_area->window,
 513     drawing->drawing_area->
 514      style->fg_gc[GTK_WIDGET_STATE (drawing->drawing_area)],
 515     GDK_DRAWABLE(drawing->pixmap),
 516     x, y,
 517     x, y,
 518     width, height);
 519
 520   update_rect.x = 0 ;
 521   update_rect.y = 0 ;
 522   update_rect.width = drawing->width;
 523   update_rect.height = drawing->height ;
 524   gtk_widget_draw( drawing->drawing_area, &update_rect);
 525
 526 }
 527
 528
 529 void drawing_draw_line( Drawing_t *drawing,
 530       GdkPixmap *pixmap,
 531       guint x1, guint y1,
 532       guint x2, guint y2,
 533       GdkGC *GC)
 534 {
 535   gdk_draw_line (pixmap,
 536       GC,
 537       x1, y1, x2, y2);
 538 }
 539
 540
 541
 542
 543 void drawing_resize(Drawing_t *drawing, guint h, guint w)
 544 {
 545   drawing->height = h ;
 546   drawing->width = w ;
 547
 548   gtk_widget_set_size_request ( drawing->drawing_area,
 549           drawing->width,
 550           drawing->height);
 551
 552
 553 }
 554
 555
 556 /* Insert a square corresponding to a new process in the list */
 557 /* Applies to whole drawing->width */
 558 void drawing_insert_square(Drawing_t *drawing,
 559         guint y,
 560         guint height)
 561 {
 562   //GdkRectangle update_rect;
 563
 564   /* Allocate a new pixmap with new height */
 565   GdkPixmap *pixmap = gdk_pixmap_new(drawing->drawing_area->window,
 566         drawing->width + SAFETY,
 567         drawing->height + height + SAFETY,
 568         -1);
 569
 570   /* Copy the high region */
 571   gdk_draw_drawable (pixmap,
 572     drawing->drawing_area->style->black_gc,
 573     drawing->pixmap,
 574     0, 0,
 575     0, 0,
 576     drawing->width + SAFETY, y);
 577
 578
 579
 580
 581   /* add an empty square */
 582   gdk_draw_rectangle (pixmap,
 583     drawing->drawing_area->style->black_gc,
 584     TRUE,
 585     0, y,
 586     drawing->width + SAFETY,  // do not overlap
 587     height);
 588
 589
 590
 591   /* copy the bottom of the region */
 592   gdk_draw_drawable (pixmap,
 593     drawing->drawing_area->style->black_gc,
 594     drawing->pixmap,
 595     0, y,
 596     0, y + height,
 597     drawing->width+SAFETY, drawing->height - y + SAFETY);
 598
 599
 600
 601
 602   if (drawing->pixmap)
 603     gdk_pixmap_unref(drawing->pixmap);
 604
 605   drawing->pixmap = pixmap;
 606
 607   drawing->height+=height;
 608
 609   /* Rectangle to update, from new drawing dimensions */
 610   //update_rect.x = 0 ;
 611   //update_rect.y = y ;
 612   //update_rect.width = drawing->width;
 613   //update_rect.height = drawing->height - y ;
 614   //gtk_widget_draw( drawing->drawing_area, &update_rect);
 615 }
 616
 617
 618 /* Remove a square corresponding to a removed process in the list */
 619 void drawing_remove_square(Drawing_t *drawing,
 620         guint y,
 621         guint height)
 622 {
 623   //GdkRectangle update_rect;
 624
 625   /* Allocate a new pixmap with new height */
 626   GdkPixmap *pixmap = gdk_pixmap_new(
 627       drawing->drawing_area->window,
 628       drawing->width + SAFETY,
 629       drawing->height - height + SAFETY,
 630       -1);
 631
 632   /* Copy the high region */
 633   gdk_draw_drawable (pixmap,
 634     drawing->drawing_area->style->black_gc,
 635     drawing->pixmap,
 636     0, 0,
 637     0, 0,
 638     drawing->width + SAFETY, y);
 639
 640
 641
 642   /* Copy up the bottom of the region */
 643   gdk_draw_drawable (pixmap,
 644     drawing->drawing_area->style->black_gc,
 645     drawing->pixmap,
 646     0, y + height,
 647     0, y,
 648     drawing->width, drawing->height - y - height + SAFETY);
 649
 650
 651   if (drawing->pixmap)
 652     gdk_pixmap_unref(drawing->pixmap);
 653
 654   drawing->pixmap = pixmap;
 655
 656   drawing->height-=height;
 657
 658   /* Rectangle to update, from new drawing dimensions */
 659   //update_rect.x = 0 ;
 660   //update_rect.y = y ;
 661   //update_rect.width = drawing->width;
 662   //update_rect.height = drawing->height - y ;
 663   //gtk_widget_draw( drawing->drawing_area, &update_rect);
 664 }
 665
 666