cinelerra-5.1/guicast/bcmeter.C

   1
   2 /*
   3  * CINELERRA
   4  * Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  */
  21
  22 #include "bcbutton.h"
  23 #include "bcmeter.h"
  24 #include "bcpixmap.h"
  25 #include "bcresources.h"
  26 #include "bcwindow.h"
  27 #include "colors.h"
  28 #include "fonts.h"
  29 #include "vframe.h"
  30 #include <string.h>
  31
  32 // Which source image to replicate
  33 #define METER_NORMAL 0
  34 #define METER_GREEN 1
  35 #define METER_RED 2
  36 #define METER_YELLOW 3
  37 #define METER_WHITE 4
  38 #define METER_OVER 5
  39 #define METER_DOWNMIX 6
  40
  41 // Region of source image to replicate
  42 #define METER_LEFT 0
  43 #define METER_MID 1
  44 #define METER_RIGHT 3
  45
  46
  47 BC_Meter::BC_Meter(int x,
  48         int y,
  49         int orientation,
  50         int pixels,
  51         int min,
  52         int max,
  53         int mode,
  54         int use_titles,
  55         int span,
  56         int downmix)
  57  : BC_SubWindow(x, y, -1, -1)
  58 {
  59         this->over_delay = 150;
  60         this->peak_delay = 15;
  61         this->use_titles = use_titles;
  62         this->min = min;
  63         this->max = max;
  64         this->mode = mode;
  65         this->orientation = orientation;
  66         this->pixels = pixels;
  67         this->span = span;
  68         this->downmix = downmix;
  69
  70 //printf("BC_Meter::draw_face %d w=%d pixels=%d\n", __LINE__, w, pixels);
  71         for(int i = 0; i < TOTAL_METER_IMAGES; i++) images[i] = 0;
  72         db_titles.set_array_delete();
  73 }
  74
  75 BC_Meter::~BC_Meter()
  76 {
  77         db_titles.remove_all_objects();
  78         title_pixels.remove_all();
  79         tick_pixels.remove_all();
  80         for(int i = 0; i < TOTAL_METER_IMAGES; i++) delete images[i];
  81 }
  82
  83 int BC_Meter::get_title_w()
  84 {
  85         return get_resources()->meter_title_w;
  86 }
  87
  88 int BC_Meter::get_meter_w()
  89 {
  90         return get_resources()->ymeter_images[0]->get_w();
  91 }
  92
  93
  94 int BC_Meter::set_delays(int over_delay, int peak_delay)
  95 {
  96         this->over_delay = over_delay;
  97         this->peak_delay = peak_delay;
  98         return 0;
  99 }
 100
 101 int BC_Meter::initialize()
 102 {
 103         peak_timer = 0;
 104         level_pixel = peak_pixel = 0;
 105         over_timer = 0;
 106         over_count = 0;
 107         peak = level = -100;
 108
 109         if(orientation == METER_VERT)
 110         {
 111                 set_images(get_resources()->ymeter_images);
 112                 h = pixels;
 113                 if(span < 0)
 114                 {
 115                         w = images[0]->get_w();
 116                         if(use_titles) w += get_title_w();
 117                 }
 118                 else
 119                         w = span;
 120         }
 121         else
 122         {
 123                 set_images(get_resources()->xmeter_images);
 124                 h = images[0]->get_h();
 125                 w = pixels;
 126                 if(use_titles) h += get_title_w();
 127         }
 128
 129 // calibrate the db titles
 130         get_divisions();
 131
 132         BC_SubWindow::initialize();
 133         draw_titles(0);
 134         draw_face(0);
 135         show_window(0);
 136         return 0;
 137 }
 138
 139 void BC_Meter::set_images(VFrame **data)
 140 {
 141         for(int i = 0; i < TOTAL_METER_IMAGES; i++) delete images[i];
 142         for(int i = 0; i < TOTAL_METER_IMAGES; i++)
 143                 images[i] = new BC_Pixmap(parent_window, data[i], PIXMAP_ALPHA);
 144 }
 145
 146 int BC_Meter::reposition_window(int x, int y, int span, int pixels)
 147 {
 148         if(pixels < 0) pixels = this->pixels;
 149         this->span = span;
 150         this->pixels = pixels;
 151         if(orientation == METER_VERT)
 152                 BC_SubWindow::reposition_window(x,
 153                         y,
 154                         this->span < 0 ? w : span,
 155                         pixels);
 156         else
 157                 BC_SubWindow::reposition_window(x, y, pixels, get_h());
 158
 159 //printf("BC_Meter::reposition_window 1 %d %d %d %d\n", x, y, w, h);
 160         get_divisions();
 161
 162 //set_color(WHITE);
 163 //draw_box(0, 0, w, h);
 164 //flash();
 165 //return 0;
 166         draw_titles(0);
 167         draw_face(0);
 168         return 0;
 169 }
 170
 171 int BC_Meter::reset(int dmix)
 172 {
 173         level = min;
 174         peak = min;
 175         level_pixel = peak_pixel = 0;
 176         peak_timer = 0;
 177         over_timer = 0;
 178         over_count = 0;
 179         if(dmix >= 0) downmix = dmix;
 180         draw_face(1);
 181         return 0;
 182 }
 183
 184 int BC_Meter::button_press_event()
 185 {
 186         if(cursor_inside() && is_event_win())
 187         {
 188                 reset_over();
 189                 return 1;
 190         }
 191         return 0;
 192 }
 193
 194
 195 int BC_Meter::reset_over()
 196 {
 197         over_timer = 0;
 198         return 0;
 199 }
 200
 201 int BC_Meter::change_format(int mode, int min, int max)
 202 {
 203         this->mode = mode;
 204         this->min = min;
 205         this->max = max;
 206         reposition_window(get_x(), get_y(), w, pixels);
 207         return 0;
 208 }
 209
 210 int BC_Meter::level_to_pixel(float level)
 211 {
 212         int result;
 213         if(mode == METER_DB)
 214         {
 215                 result = (int)(pixels *
 216                         (level - min) /
 217                         (max - min));
 218                 if(level <= min) result = 0;
 219         }
 220         else
 221         {
 222 // Not implemented anymore
 223                 result = 0;
 224         }
 225
 226         return result;
 227 }
 228
 229
 230 void BC_Meter::get_divisions()
 231 {
 232         char string[BCTEXTLEN];
 233         char *new_string;
 234
 235
 236         db_titles.remove_all_objects();
 237         title_pixels.remove_all();
 238         tick_pixels.remove_all();
 239
 240         low_division = 0;
 241         medium_division = 0;
 242         high_division = pixels;
 243
 244         int current_pixel;
 245 // Create tick marks and titles in one pass
 246         for(int current = min; current <= max; current++)
 247         {
 248                 if(orientation == METER_VERT)
 249                 {
 250 // Create tick mark
 251                         current_pixel = (pixels - METER_MARGIN * 2 - 2) *
 252                                 (current - min) /
 253                                 (max - min) + 2;
 254                         tick_pixels.append(current_pixel);
 255
 256 // Create titles in selected positions
 257                         if(current == min ||
 258                                 current == max ||
 259                                 current == 0 ||
 260                                 (current - min > 4 && max - current > 4 && !(current % 5)))
 261                         {
 262                                 int title_pixel = (pixels -
 263                                         METER_MARGIN * 2) *
 264                                         (current - min) /
 265                                         (max - min);
 266                                 sprintf(string, "%ld", labs(current));
 267                                 new_string = new char[strlen(string) + 1];
 268                                 strcpy(new_string, string);
 269                                 db_titles.append(new_string);
 270                                 title_pixels.append(title_pixel);
 271                         }
 272                 }
 273                 else
 274                 {
 275                         current_pixel = (pixels - METER_MARGIN * 2) *
 276                                 (current - min) /
 277                                 (max - min);
 278                         tick_pixels.append(current_pixel);
 279 // Titles not supported for horizontal
 280                 }
 281
 282 // Create color divisions
 283                 if(current == -20)
 284                 {
 285                         low_division = current_pixel;
 286                 }
 287                 else
 288                 if(current == -5)
 289                 {
 290                         medium_division = current_pixel;
 291                 }
 292                 else
 293                 if(current == 0)
 294                 {
 295                         high_division = current_pixel;
 296                 }
 297         }
 298 // if(orientation == METER_VERT)
 299 // printf("BC_Meter::get_divisions %d %d %d %d\n",
 300 // low_division, medium_division, high_division, pixels);
 301 }
 302
 303 void BC_Meter::draw_titles(int flush)
 304 {
 305         if(!use_titles) return;
 306
 307         set_font(get_resources()->meter_font);
 308
 309         if(orientation == METER_HORIZ)
 310         {
 311                 draw_top_background(parent_window, 0, 0, get_w(), get_title_w());
 312
 313                 for(int i = 0; i < db_titles.total; i++)
 314                 {
 315                         draw_text(0, title_pixels.values[i], db_titles.values[i]);
 316                 }
 317
 318                 flash(0, 0, get_w(), get_title_w(), flush);
 319         }
 320         else
 321         if(orientation == METER_VERT)
 322         {
 323                 draw_top_background(parent_window, 0, 0, get_title_w(), get_h());
 324
 325 // Titles
 326                 for(int i = 0; i < db_titles.total; i++)
 327                 {
 328                         int title_y = pixels -
 329                                 title_pixels.values[i];
 330                         if(i == 0)
 331                                 title_y -= get_text_descent(SMALLFONT_3D);
 332                         else
 333                         if(i == db_titles.total - 1)
 334                                 title_y += get_text_ascent(SMALLFONT_3D);
 335                         else
 336                                 title_y += get_text_ascent(SMALLFONT_3D) / 2;
 337
 338                         set_color(get_resources()->meter_font_color);
 339                         draw_text(0,
 340                                 title_y,
 341                                 db_titles.values[i]);
 342                 }
 343
 344                 for(int i = 0; i < tick_pixels.total; i++)
 345                 {
 346 // Tick marks
 347                         int tick_y = pixels - tick_pixels.values[i] - METER_MARGIN;
 348                         set_color(get_resources()->meter_font_color);
 349                         draw_line(get_title_w() - 10 - 1, tick_y, get_title_w() - 1, tick_y);
 350                         if(get_resources()->meter_3d)
 351                         {
 352                                 set_color(BLACK);
 353                                 draw_line(get_title_w() - 10, tick_y + 1, get_title_w(), tick_y + 1);
 354                         }
 355                 }
 356
 357                 flash(0, 0, get_title_w(), get_h(), flush);
 358         }
 359 }
 360
 361 int BC_Meter::region_pixel(int region)
 362 {
 363         VFrame **reference_images = get_resources()->xmeter_images;
 364         int result;
 365
 366         if(region == METER_RIGHT)
 367                 result = region * reference_images[0]->get_w() / 4;
 368         else
 369                 result = region * reference_images[0]->get_w() / 4;
 370
 371         return result;
 372 }
 373
 374 int BC_Meter::region_pixels(int region)
 375 {
 376         int x1;
 377         int x2;
 378         int result;
 379         VFrame **reference_images = get_resources()->xmeter_images;
 380
 381         x1 = region * reference_images[0]->get_w() / 4;
 382         x2 = (region + 1) * reference_images[0]->get_w() / 4;
 383         if(region == METER_MID)
 384                 result = (x2 - x1) * 2;
 385         else
 386                 result = x2 - x1;
 387         return result;
 388 }
 389
 390 void BC_Meter::draw_face(int flush)
 391 {
 392         int level_pixel = level_to_pixel(level);
 393         int peak_pixel2 = level_to_pixel(peak);
 394         int peak_pixel1 = peak_pixel2 - 2;
 395         int left_pixel = region_pixel(METER_MID);
 396         int right_pixel = pixels - region_pixels(METER_RIGHT);
 397         int pixel = 0;
 398         int image_number = 0, region = 0;
 399         int in_span, in_start;
 400         int x = use_titles ? get_title_w() : 0;
 401         int w = use_titles ? (this->w - get_title_w()) : this->w;
 402
 403         draw_top_background(parent_window, x, 0, w, h);
 404
 405 // printf("BC_Meter::draw_face %d span=%d this->w=%d get_title_w()=%d %d %d\n",
 406 // __LINE__,
 407 // span,
 408 // this->w,
 409 // get_title_w(),
 410 // w,
 411 // h);
 412
 413         while(pixel < pixels)
 414         {
 415 // Select image to draw
 416                 if(pixel < level_pixel ||
 417                         (pixel >= peak_pixel1 && pixel < peak_pixel2))
 418                 {
 419                         if(pixel < low_division)
 420                                 image_number = METER_GREEN;
 421                         else
 422                         if(pixel < medium_division)
 423                                 image_number = METER_YELLOW;
 424                         else
 425                         if(pixel < high_division)
 426                                 image_number = METER_RED;
 427                         else
 428                                 image_number = METER_WHITE;
 429                 }
 430                 else
 431                 {
 432                         image_number = METER_NORMAL;
 433                 }
 434
 435 // Select region of image to duplicate
 436                 if(pixel < left_pixel)
 437                 {
 438                         region = METER_LEFT;
 439                         in_start = pixel + region_pixel(region);
 440                         in_span = region_pixels(region) - (in_start - region_pixel(region));
 441                 }
 442                 else
 443                 if(pixel < right_pixel)
 444                 {
 445                         region = METER_MID;
 446                         in_start = region_pixel(region);
 447                         in_span = region_pixels(region);
 448                 }
 449                 else
 450                 {
 451                         region = METER_RIGHT;
 452                         in_start = (pixel - right_pixel) + region_pixel(region);
 453                         in_span = region_pixels(region) - (in_start - region_pixel(region));;
 454                 }
 455
 456 //printf("BC_Meter::draw_face region %d pixel %d pixels %d in_start %d in_span %d\n", region, pixel, pixels, in_start, in_span);
 457                 if(in_span > 0)
 458                 {
 459 // Clip length to peaks
 460                         if(pixel < level_pixel && pixel + in_span > level_pixel)
 461                                 in_span = level_pixel - pixel;
 462                         else
 463                         if(pixel < peak_pixel1 && pixel + in_span > peak_pixel1)
 464                                 in_span = peak_pixel1 - pixel;
 465                         else
 466                         if(pixel < peak_pixel2 && pixel + in_span > peak_pixel2)
 467                                 in_span = peak_pixel2 - pixel;
 468
 469 // Clip length to color changes
 470                         if(image_number == METER_GREEN && pixel + in_span > low_division)
 471                                 in_span = low_division - pixel;
 472                         else
 473                         if(image_number == METER_YELLOW && pixel + in_span > medium_division)
 474                                 in_span = medium_division - pixel;
 475                         else
 476                         if(image_number == METER_RED && pixel + in_span > high_division)
 477                                 in_span = high_division - pixel;
 478
 479 // Clip length to regions
 480                         if(pixel < left_pixel && pixel + in_span > left_pixel)
 481                                 in_span = left_pixel - pixel;
 482                         else
 483                         if(pixel < right_pixel && pixel + in_span > right_pixel)
 484                                 in_span = right_pixel - pixel;
 485
 486 //printf("BC_Meter::draw_face image_number %d pixel %d pixels %d in_start %d in_span %d\n", image_number, pixel, pixels, in_start, in_span);
 487 //printf("BC_Meter::draw_face %d %d %d %d\n", orientation, region, images[image_number]->get_h() - in_start - in_span);
 488                         if(orientation == METER_HORIZ)
 489                         {
 490                                 draw_pixmap(images[image_number],
 491                                         pixel,
 492                                         x,
 493                                         in_span + 1,
 494                                         get_h(),
 495                                         in_start,
 496                                         0);
 497                         }
 498                         else
 499                         {
 500 //printf("BC_Meter::draw_face %d %d\n", __LINE__, span);
 501                                 if(span < 0)
 502                                 {
 503                                         draw_pixmap(images[image_number],
 504                                                 x,
 505                                                 get_h() - pixel - in_span,
 506                                                 get_w(),
 507                                                 in_span + 1,
 508                                                 0,
 509                                                 images[image_number]->get_h() - in_start - in_span);
 510                                 }
 511                                 else
 512                                 {
 513                                         int total_w = get_w() - x;
 514                                         int third = images[image_number]->get_w() / 3 + 1;
 515
 516
 517                                         for(int x1 = 0; x1 < total_w; x1 += third)
 518                                         {
 519                                                 int in_x = 0;
 520                                                 int in_w = third;
 521                                                 if(x1 >= third) in_x = third;
 522                                                 if(x1 >= total_w - third)
 523                                                 {
 524                                                         in_x = images[image_number]->get_w() -
 525                                                                 (total_w - x1);
 526                                                         in_w = total_w - x1;
 527                                                 }
 528
 529                                                 int in_y = images[image_number]->get_h() - in_start - in_span;
 530 //printf("BC_Meter::draw_face %d %d %d\n", __LINE__, get_w(), x + x1 + in_w, in_x, in_y, in_w, span);
 531
 532
 533                                                 draw_pixmap(images[image_number],
 534                                                         x + x1,
 535                                                         get_h() - pixel - in_span,
 536                                                         in_w,
 537                                                         in_span + 1,
 538                                                         in_x,
 539                                                         in_y);
 540                                         }
 541                                 }
 542                         }
 543
 544                         pixel += in_span;
 545                 }
 546                 else
 547                 {
 548 // Sanity check
 549                         break;
 550                 }
 551         }
 552
 553         if(downmix) {
 554                 if(orientation == METER_HORIZ)
 555                         draw_pixmap(images[METER_DOWNMIX],
 556                                 0,
 557                                 0);
 558                 else
 559                         draw_pixmap(images[METER_DOWNMIX],
 560                                 x,
 561                                 get_h() - images[METER_DOWNMIX]->get_h()-1);
 562         }
 563
 564         if(over_timer)
 565         {
 566                 if(orientation == METER_HORIZ)
 567                         draw_pixmap(images[METER_OVER],
 568                                 20,
 569                                 2);
 570                 else
 571                         draw_pixmap(images[METER_OVER],
 572                                 x,
 573                                 get_h() - 100);
 574
 575                 over_timer--;
 576         }
 577
 578         if(orientation == METER_HORIZ)
 579                 flash(0, 0, pixels, get_h(), flush);
 580         else
 581                 flash(x, 0, w, pixels, flush);
 582 }
 583
 584 int BC_Meter::update(float new_value, int over, int dmix)
 585 {
 586         peak_timer++;
 587
 588         if(mode == METER_DB)
 589         {
 590                 if(new_value == 0)
 591                         level = min;
 592                 else
 593                         level = db.todb(new_value);        // db value
 594         }
 595
 596         if(level > peak || peak_timer > peak_delay)
 597         {
 598                 peak = level;
 599                 peak_timer = 0;
 600         }
 601
 602 // if(orientation == METER_HORIZ)
 603 // printf("BC_Meter::update %f\n", level);
 604         if(over) over_timer = over_delay;
 605 // only draw if window is visible
 606         if(dmix >= 0) downmix = dmix;
 607
 608         draw_face(1);
 609         return 0;
 610 }