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     GdkGC *gc = gdk_gc_new(control_flow_data->drawing->pixmap);
 328     gdk_gc_copy(gc, widget->style->white_gc);
 329     gdk_gc_set_line_attributes(gc,
 330                                1,
 331                                GDK_LINE_ON_OFF_DASH,
 332                                GDK_CAP_BUTT,
 333                                GDK_JOIN_MITER);
 334     drawing_draw_line(NULL, widget->window,
 335                   x, event->area.y,
 336                   x, event->area.y+event->area.height,
 337                   gc);
 338     gdk_gc_unref(gc);
 339   }
 340   return FALSE;
 341 }
 342
 343 /* mouse click */
 344 static gboolean
 345 button_press_event( GtkWidget *widget, GdkEventButton *event, gpointer user_data )
 346 {
 347   ControlFlowData *control_flow_data =
 348       (ControlFlowData*)g_object_get_data(
 349                 G_OBJECT(widget),
 350                 "control_flow_data");
 351   Drawing_t *drawing = control_flow_data->drawing;
 352
 353
 354   g_critical("click");
 355   if(event->button == 1)
 356   {
 357     LttTime time;
 358
 359     LttTime window_end = ltt_time_add(control_flow_data->time_window.time_width,
 360                         control_flow_data->time_window.start_time);
 361
 362
 363     /* left mouse button click */
 364     g_critical("x click is : %f", event->x);
 365
 366     convert_pixels_to_time(widget->allocation.width, (guint)event->x,
 367         &control_flow_data->time_window.start_time,
 368         &window_end,
 369         &time);
 370
 371     set_current_time(control_flow_data->mw, &time);
 372
 373   }
 374
 375   return FALSE;
 376 }
 377
 378
 379
 380
 381 Drawing_t *drawing_construct(ControlFlowData *control_flow_data)
 382 {
 383   Drawing_t *drawing = g_new(Drawing_t, 1);
 384
 385   drawing->drawing_area = gtk_drawing_area_new ();
 386   drawing->control_flow_data = control_flow_data;
 387
 388   drawing->pango_layout =
 389     gtk_widget_create_pango_layout(drawing->drawing_area, NULL);
 390
 391   //gtk_widget_set_size_request(drawing->drawing_area->window, 50, 50);
 392   g_object_set_data_full(
 393       G_OBJECT(drawing->drawing_area),
 394       "Link_drawing_Data",
 395       drawing,
 396       (GDestroyNotify)drawing_destroy);
 397
 398   //gtk_widget_modify_bg( drawing->drawing_area,
 399   //      GTK_STATE_NORMAL,
 400   //      &CF_Colors[BLACK]);
 401
 402   //gdk_window_get_geometry(drawing->drawing_area->window,
 403   //    NULL, NULL,
 404   //    &(drawing->width),
 405   //    &(drawing->height),
 406   //    -1);
 407
 408   //drawing->pixmap = gdk_pixmap_new(
 409   //    drawing->drawing_area->window,
 410   //    drawing->width,
 411   //    drawing->height,
 412   //    drawing->depth);
 413
 414   drawing->pixmap = NULL;
 415
 416 //  drawing->pixmap = gdk_pixmap_new(drawing->drawing_area->window,
 417 //        drawing->drawing_area->allocation.width,
 418 //        drawing->drawing_area->allocation.height,
 419 //        -1);
 420
 421   gtk_widget_add_events(drawing->drawing_area, GDK_BUTTON_PRESS_MASK);
 422
 423   g_signal_connect (G_OBJECT(drawing->drawing_area),
 424         "configure_event",
 425         G_CALLBACK (configure_event),
 426         (gpointer)drawing);
 427
 428   g_signal_connect (G_OBJECT(drawing->drawing_area),
 429         "expose_event",
 430         G_CALLBACK (expose_event),
 431         (gpointer)drawing);
 432
 433   g_signal_connect (G_OBJECT(drawing->drawing_area),
 434         "button-press-event",
 435         G_CALLBACK (button_press_event),
 436         (gpointer)drawing);
 437
 438
 439   return drawing;
 440 }
 441
 442 void drawing_destroy(Drawing_t *drawing)
 443 {
 444
 445   // Do not unref here, Drawing_t destroyed by it's widget.
 446   //g_object_unref( G_OBJECT(drawing->drawing_area));
 447
 448   g_free(drawing->pango_layout);
 449   g_free(drawing);
 450 }
 451
 452 GtkWidget *drawing_get_widget(Drawing_t *drawing)
 453 {
 454   return drawing->drawing_area;
 455 }
 456
 457 /* convert_pixels_to_time
 458  *
 459  * Convert from window pixel and time interval to an absolute time.
 460  */
 461 void convert_pixels_to_time(
 462     gint width,
 463     guint x,
 464     LttTime *window_time_begin,
 465     LttTime *window_time_end,
 466     LttTime *time)
 467 {
 468   LttTime window_time_interval;
 469
 470   window_time_interval = ltt_time_sub(*window_time_end,
 471             *window_time_begin);
 472   *time = ltt_time_mul(window_time_interval, (x/(float)width));
 473   *time = ltt_time_add(*window_time_begin, *time);
 474 }
 475
 476
 477
 478 void convert_time_to_pixels(
 479     LttTime window_time_begin,
 480     LttTime window_time_end,
 481     LttTime time,
 482     int width,
 483     guint *x)
 484 {
 485   LttTime window_time_interval;
 486   float interval_float, time_float;
 487
 488   window_time_interval = ltt_time_sub(window_time_end,window_time_begin);
 489
 490   time = ltt_time_sub(time, window_time_begin);
 491
 492   interval_float = ltt_time_to_double(window_time_interval);
 493   time_float = ltt_time_to_double(time);
 494
 495   *x = (guint)(time_float/interval_float * width);
 496
 497 }
 498
 499 void drawing_refresh (  Drawing_t *drawing,
 500       guint x, guint y,
 501       guint width, guint height)
 502 {
 503   g_info("Drawing.c : drawing_refresh %u, %u, %u, %u", x, y, width, height);
 504   GdkRectangle update_rect;
 505
 506   gdk_draw_drawable(
 507     drawing->drawing_area->window,
 508     drawing->drawing_area->
 509      style->fg_gc[GTK_WIDGET_STATE (drawing->drawing_area)],
 510     GDK_DRAWABLE(drawing->pixmap),
 511     x, y,
 512     x, y,
 513     width, height);
 514
 515   update_rect.x = 0 ;
 516   update_rect.y = 0 ;
 517   update_rect.width = drawing->width;
 518   update_rect.height = drawing->height ;
 519   gtk_widget_draw( drawing->drawing_area, &update_rect);
 520
 521 }
 522
 523
 524 void drawing_draw_line( Drawing_t *drawing,
 525       GdkPixmap *pixmap,
 526       guint x1, guint y1,
 527       guint x2, guint y2,
 528       GdkGC *GC)
 529 {
 530   gdk_draw_line (pixmap,
 531       GC,
 532       x1, y1, x2, y2);
 533 }
 534
 535
 536
 537
 538 void drawing_resize(Drawing_t *drawing, guint h, guint w)
 539 {
 540   drawing->height = h ;
 541   drawing->width = w ;
 542
 543   gtk_widget_set_size_request ( drawing->drawing_area,
 544           drawing->width,
 545           drawing->height);
 546
 547
 548 }
 549
 550
 551 /* Insert a square corresponding to a new process in the list */
 552 /* Applies to whole drawing->width */
 553 void drawing_insert_square(Drawing_t *drawing,
 554         guint y,
 555         guint height)
 556 {
 557   //GdkRectangle update_rect;
 558
 559   /* Allocate a new pixmap with new height */
 560   GdkPixmap *pixmap = gdk_pixmap_new(drawing->drawing_area->window,
 561         drawing->width + SAFETY,
 562         drawing->height + height + SAFETY,
 563         -1);
 564
 565   /* Copy the high region */
 566   gdk_draw_drawable (pixmap,
 567     drawing->drawing_area->style->black_gc,
 568     drawing->pixmap,
 569     0, 0,
 570     0, 0,
 571     drawing->width + SAFETY, y);
 572
 573
 574
 575
 576   /* add an empty square */
 577   gdk_draw_rectangle (pixmap,
 578     drawing->drawing_area->style->black_gc,
 579     TRUE,
 580     0, y,
 581     drawing->width + SAFETY,  // do not overlap
 582     height);
 583
 584
 585
 586   /* copy the bottom of the region */
 587   gdk_draw_drawable (pixmap,
 588     drawing->drawing_area->style->black_gc,
 589     drawing->pixmap,
 590     0, y,
 591     0, y + height,
 592     drawing->width+SAFETY, drawing->height - y + SAFETY);
 593
 594
 595
 596
 597   if (drawing->pixmap)
 598     gdk_pixmap_unref(drawing->pixmap);
 599
 600   drawing->pixmap = pixmap;
 601
 602   drawing->height+=height;
 603
 604   /* Rectangle to update, from new drawing dimensions */
 605   //update_rect.x = 0 ;
 606   //update_rect.y = y ;
 607   //update_rect.width = drawing->width;
 608   //update_rect.height = drawing->height - y ;
 609   //gtk_widget_draw( drawing->drawing_area, &update_rect);
 610 }
 611
 612
 613 /* Remove a square corresponding to a removed process in the list */
 614 void drawing_remove_square(Drawing_t *drawing,
 615         guint y,
 616         guint height)
 617 {
 618   //GdkRectangle update_rect;
 619
 620   /* Allocate a new pixmap with new height */
 621   GdkPixmap *pixmap = gdk_pixmap_new(
 622       drawing->drawing_area->window,
 623       drawing->width + SAFETY,
 624       drawing->height - height + SAFETY,
 625       -1);
 626
 627   /* Copy the high region */
 628   gdk_draw_drawable (pixmap,
 629     drawing->drawing_area->style->black_gc,
 630     drawing->pixmap,
 631     0, 0,
 632     0, 0,
 633     drawing->width + SAFETY, y);
 634
 635
 636
 637   /* Copy up the bottom of the region */
 638   gdk_draw_drawable (pixmap,
 639     drawing->drawing_area->style->black_gc,
 640     drawing->pixmap,
 641     0, y + height,
 642     0, y,
 643     drawing->width, drawing->height - y - height + SAFETY);
 644
 645
 646   if (drawing->pixmap)
 647     gdk_pixmap_unref(drawing->pixmap);
 648
 649   drawing->pixmap = pixmap;
 650
 651   drawing->height-=height;
 652
 653   /* Rectangle to update, from new drawing dimensions */
 654   //update_rect.x = 0 ;
 655   //update_rect.y = y ;
 656   //update_rect.width = drawing->width;
 657   //update_rect.height = drawing->height - y ;
 658   //gtk_widget_draw( drawing->drawing_area, &update_rect);
 659 }
 660
 661