hvirtual/guicast/bcmeter.C

   1 #include "bcbutton.h"
   2 #include "bcmeter.h"
   3 #include "bcpixmap.h"
   4 #include "bcresources.h"
   5 #include "bcwindow.h"
   6 #include "colors.h"
   7 #include "fonts.h"
   8 #include "vframe.h"
   9 #include <string.h>
  10
  11 // Which source image to replicate
  12 #define METER_NORMAL 0
  13 #define METER_GREEN 1
  14 #define METER_RED 2
  15 #define METER_YELLOW 3
  16 #define METER_WHITE 4
  17 #define METER_OVER 5
  18
  19 // Region of source image to replicate
  20 #define METER_LEFT 0
  21 #define METER_MID 1
  22 #define METER_RIGHT 3
  23
  24
  25 BC_Meter::BC_Meter(int x,
  26         int y,
  27         int orientation,
  28         int pixels,
  29         int min,
  30         int max,
  31         int mode,
  32         int use_titles,
  33         long over_delay,
  34         long peak_delay)
  35  : BC_SubWindow(x, y, -1, -1)
  36 {
  37         this->use_titles = use_titles;
  38         this->over_delay = over_delay;
  39         this->peak_delay = peak_delay;
  40         this->min = min;
  41         this->max = max;
  42         this->mode = mode;
  43         this->orientation = orientation;
  44         this->pixels = pixels;
  45         for(int i = 0; i < TOTAL_METER_IMAGES; i++) images[i] = 0;
  46 }
  47
  48 BC_Meter::~BC_Meter()
  49 {
  50         db_titles.remove_all_objects();
  51         title_pixels.remove_all();
  52         tick_pixels.remove_all();
  53         for(int i = 0; i < TOTAL_METER_IMAGES; i++) delete images[i];
  54 }
  55
  56 int BC_Meter::get_title_w()
  57 {
  58         return get_resources()->meter_title_w;
  59 }
  60
  61 int BC_Meter::get_meter_w()
  62 {
  63         return get_resources()->ymeter_images[0]->get_w() + 2;
  64 }
  65
  66
  67 int BC_Meter::set_delays(int over_delay, int peak_delay)
  68 {
  69         this->over_delay = over_delay;
  70         this->peak_delay = peak_delay;
  71         return 0;
  72 }
  73
  74 int BC_Meter::initialize()
  75 {
  76         peak_timer = 0;
  77         level_pixel = peak_pixel = 0;
  78         over_timer = 0;
  79         over_count = 0;
  80         peak = level = -100;
  81
  82         if(orientation == METER_VERT)
  83         {
  84                 set_images(get_resources()->ymeter_images);
  85                 h = pixels;
  86                 w = images[0]->get_w();
  87                 if(use_titles) w += get_title_w();
  88         }
  89         else
  90         {
  91                 set_images(get_resources()->xmeter_images);
  92                 h = images[0]->get_h();
  93                 w = pixels;
  94                 if(use_titles) h += get_title_w();
  95         }
  96
  97 // calibrate the db titles
  98         get_divisions();
  99
 100         BC_SubWindow::initialize();
 101         draw_titles();
 102         draw_face();
 103         return 0;
 104 }
 105
 106 void BC_Meter::set_images(VFrame **data)
 107 {
 108         for(int i = 0; i < TOTAL_METER_IMAGES; i++) delete images[i];
 109         for(int i = 0; i < TOTAL_METER_IMAGES; i++)
 110                 images[i] = new BC_Pixmap(parent_window, data[i], PIXMAP_ALPHA);
 111 }
 112
 113 int BC_Meter::reposition_window(int x, int y, int pixels)
 114 {
 115         if(pixels < 0) pixels = this->pixels;
 116         this->pixels = pixels;
 117         if(orientation == METER_VERT)
 118                 BC_SubWindow::reposition_window(x, y, get_w(), pixels);
 119         else
 120                 BC_SubWindow::reposition_window(x, y, pixels, get_h());
 121
 122 //printf("BC_Meter::reposition_window 1 %d %d %d %d\n", x, y, w, h);
 123         get_divisions();
 124
 125 //set_color(WHITE);
 126 //draw_box(0, 0, w, h);
 127 //flash();
 128 //return 0;
 129         draw_titles();
 130         draw_face();
 131         return 0;
 132 }
 133
 134 int BC_Meter::reset()
 135 {
 136         level = min;
 137         peak = min;
 138         level_pixel = peak_pixel = 0;
 139         peak_timer = 0;
 140         over_timer = 0;
 141         over_count = 0;
 142         draw_face();
 143         return 0;
 144 }
 145
 146 int BC_Meter::button_press_event()
 147 {
 148         if(cursor_inside() && is_event_win())
 149         {
 150                 reset_over();
 151                 return 1;
 152         }
 153         return 0;
 154 }
 155
 156
 157 int BC_Meter::reset_over()
 158 {
 159         over_timer = 0;
 160         return 0;
 161 }
 162
 163 int BC_Meter::change_format(int mode, int min, int max)
 164 {
 165         this->mode = mode;
 166         this->min = min;
 167         this->max = max;
 168         reposition_window(get_x(), get_y(), pixels);
 169         return 0;
 170 }
 171
 172 int BC_Meter::level_to_pixel(float level)
 173 {
 174         int result;
 175         if(mode == METER_DB)
 176         {
 177                 result = (int)(pixels *
 178                         (level - min) /
 179                         (max - min));
 180                 if(level <= min) result = 0;
 181         }
 182         else
 183         {
 184 // Not implemented anymore
 185                 result = 0;
 186         }
 187
 188         return result;
 189 }
 190
 191
 192 void BC_Meter::get_divisions()
 193 {
 194         int i;
 195         int j, j_step;
 196         int division, division_step;
 197         char string[BCTEXTLEN];
 198         char *new_string;
 199
 200
 201         db_titles.remove_all_objects();
 202         title_pixels.remove_all();
 203         tick_pixels.remove_all();
 204
 205         low_division = 0;
 206         medium_division = 0;
 207         high_division = pixels;
 208
 209         int current_pixel;
 210 // Create tick marks and titles in one pass
 211         for(int current = min; current <= max; current++)
 212         {
 213                 if(orientation == METER_VERT)
 214                 {
 215 // Create tick mark
 216                         current_pixel = (pixels - METER_MARGIN * 2 - 2) *
 217                                 (current - min) /
 218                                 (max - min) + 2;
 219                         tick_pixels.append(current_pixel);
 220
 221 // Create titles in selected positions
 222                         if(current == min ||
 223                                 current == max ||
 224                                 current == 0 ||
 225                                 (current - min > 4 && max - current > 4 && !(current % 5)))
 226                         {
 227                                 int title_pixel = (pixels -
 228                                         METER_MARGIN * 2) *
 229                                         (current - min) /
 230                                         (max - min);
 231                                 sprintf(string, "%d", labs(current));
 232                                 new_string = new char[strlen(string) + 1];
 233                                 strcpy(new_string, string);
 234                                 db_titles.append(new_string);
 235                                 title_pixels.append(title_pixel);
 236                         }
 237                 }
 238                 else
 239                 {
 240                         current_pixel = (pixels - METER_MARGIN * 2) *
 241                                 (current - min) /
 242                                 (max - min);
 243                         tick_pixels.append(current_pixel);
 244 // Titles not supported for horizontal
 245                 }
 246
 247 // Create color divisions
 248                 if(current == -20)
 249                 {
 250                         low_division = current_pixel;
 251                 }
 252                 else
 253                 if(current == -5)
 254                 {
 255                         medium_division = current_pixel;
 256                 }
 257                 else
 258                 if(current == 0)
 259                 {
 260                         high_division = current_pixel;
 261                 }
 262         }
 263 // if(orientation == METER_VERT)
 264 // printf("BC_Meter::get_divisions %d %d %d %d\n",
 265 // low_division, medium_division, high_division, pixels);
 266 }
 267
 268 void BC_Meter::draw_titles()
 269 {
 270         if(!use_titles) return;
 271
 272         set_font(get_resources()->meter_font);
 273
 274         if(orientation == METER_HORIZ)
 275         {
 276                 draw_top_background(parent_window, 0, 0, get_w(), get_title_w());
 277
 278                 for(int i = 0; i < db_titles.total; i++)
 279                 {
 280                         draw_text(0, title_pixels.values[i], db_titles.values[i]);
 281                 }
 282
 283                 flash(0, 0, get_w(), get_title_w());
 284         }
 285         else
 286         if(orientation == METER_VERT)
 287         {
 288                 draw_top_background(parent_window, 0, 0, get_title_w(), get_h());
 289
 290 // Titles
 291                 for(int i = 0; i < db_titles.total; i++)
 292                 {
 293                         int title_y = pixels -
 294                                 title_pixels.values[i];
 295                         if(i == 0)
 296                                 title_y -= get_text_descent(SMALLFONT_3D);
 297                         else
 298                         if(i == db_titles.total - 1)
 299                                 title_y += get_text_ascent(SMALLFONT_3D);
 300                         else
 301                                 title_y += get_text_ascent(SMALLFONT_3D) / 2;
 302
 303                         set_color(get_resources()->meter_font_color);
 304                         draw_text(0,
 305                                 title_y,
 306                                 db_titles.values[i]);
 307                 }
 308
 309                 for(int i = 0; i < tick_pixels.total; i++)
 310                 {
 311 // Tick marks
 312                         int tick_y = pixels - tick_pixels.values[i] - METER_MARGIN;
 313                         set_color(get_resources()->meter_font_color);
 314                         draw_line(get_title_w() - 10 - 1, tick_y, get_title_w() - 1, tick_y);
 315                         if(get_resources()->meter_3d)
 316                         {
 317                                 set_color(BLACK);
 318                                 draw_line(get_title_w() - 10, tick_y + 1, get_title_w(), tick_y + 1);
 319                         }
 320                 }
 321
 322                 flash(0, 0, get_title_w(), get_h());
 323         }
 324 }
 325
 326 int BC_Meter::region_pixel(int region)
 327 {
 328         VFrame **reference_images = get_resources()->xmeter_images;
 329         int result;
 330
 331         if(region == METER_RIGHT)
 332                 result = region * reference_images[0]->get_w() / 4;
 333         else
 334                 result = region * reference_images[0]->get_w() / 4;
 335
 336         return result;
 337 }
 338
 339 int BC_Meter::region_pixels(int region)
 340 {
 341         int x1;
 342         int x2;
 343         int result;
 344         VFrame **reference_images = get_resources()->xmeter_images;
 345
 346         x1 = region * reference_images[0]->get_w() / 4;
 347         x2 = (region + 1) * reference_images[0]->get_w() / 4;
 348         if(region == METER_MID)
 349                 result = (x2 - x1) * 2;
 350         else
 351                 result = x2 - x1;
 352         return result;
 353 }
 354
 355 void BC_Meter::draw_face()
 356 {
 357         VFrame **reference_images = get_resources()->xmeter_images;
 358         int level_pixel = level_to_pixel(level);
 359         int peak_pixel2 = level_to_pixel(peak);
 360         int peak_pixel1 = peak_pixel2 - 2;
 361         int left_pixel = region_pixel(METER_MID);
 362         int right_pixel = pixels - region_pixels(METER_RIGHT);
 363         int pixel = 0;
 364         int image_number = 0, region = 0;
 365         int in_span, in_start;
 366         int x = use_titles ? get_title_w() : 0;
 367         int w = use_titles ? this->w - get_title_w() : this->w;
 368
 369         draw_top_background(parent_window, x, 0, w, h);
 370 //printf("BC_Meter::draw_face %d %d\n", w, h);
 371
 372         while(pixel < pixels)
 373         {
 374 // Select image to draw
 375                 if(pixel < level_pixel ||
 376                         (pixel >= peak_pixel1 && pixel < peak_pixel2))
 377                 {
 378                         if(pixel < low_division)
 379                                 image_number = METER_GREEN;
 380                         else
 381                         if(pixel < medium_division)
 382                                 image_number = METER_YELLOW;
 383                         else
 384                         if(pixel < high_division)
 385                                 image_number = METER_RED;
 386                         else
 387                                 image_number = METER_WHITE;
 388                 }
 389                 else
 390                 {
 391                         image_number = METER_NORMAL;
 392                 }
 393
 394 // Select region of image to duplicate
 395                 if(pixel < left_pixel)
 396                 {
 397                         region = METER_LEFT;
 398                         in_start = pixel + region_pixel(region);
 399                         in_span = region_pixels(region) - (in_start - region_pixel(region));
 400                 }
 401                 else
 402                 if(pixel < right_pixel)
 403                 {
 404                         region = METER_MID;
 405                         in_start = region_pixel(region);
 406                         in_span = region_pixels(region);
 407                 }
 408                 else
 409                 {
 410                         region = METER_RIGHT;
 411                         in_start = (pixel - right_pixel) + region_pixel(region);
 412                         in_span = region_pixels(region) - (in_start - region_pixel(region));;
 413                 }
 414
 415 //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);
 416                 if(in_span > 0)
 417                 {
 418 // Clip length to peaks
 419                         if(pixel < level_pixel && pixel + in_span > level_pixel)
 420                                 in_span = level_pixel - pixel;
 421                         else
 422                         if(pixel < peak_pixel1 && pixel + in_span > peak_pixel1)
 423                                 in_span = peak_pixel1 - pixel;
 424                         else
 425                         if(pixel < peak_pixel2 && pixel + in_span > peak_pixel2)
 426                                 in_span = peak_pixel2 - pixel;
 427
 428 // Clip length to color changes
 429                         if(image_number == METER_GREEN && pixel + in_span > low_division)
 430                                 in_span = low_division - pixel;
 431                         else
 432                         if(image_number == METER_YELLOW && pixel + in_span > medium_division)
 433                                 in_span = medium_division - pixel;
 434                         else
 435                         if(image_number == METER_RED && pixel + in_span > high_division)
 436                                 in_span = high_division - pixel;
 437
 438 // Clip length to regions
 439                         if(pixel < left_pixel && pixel + in_span > left_pixel)
 440                                 in_span = left_pixel - pixel;
 441                         else
 442                         if(pixel < right_pixel && pixel + in_span > right_pixel)
 443                                 in_span = right_pixel - pixel;
 444
 445 //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);
 446 //printf("BC_Meter::draw_face %d %d %d %d\n", orientation, region, images[image_number]->get_h() - in_start - in_span);
 447                         if(orientation == METER_HORIZ)
 448                                 draw_pixmap(images[image_number],
 449                                         pixel,
 450                                         x,
 451                                         in_span + 1,
 452                                         get_h(),
 453                                         in_start,
 454                                         0);
 455                         else
 456                                 draw_pixmap(images[image_number],
 457                                         x,
 458                                         get_h() - pixel - in_span,
 459                                         get_w(),
 460                                         in_span + 1,
 461                                         0,
 462                                         images[image_number]->get_h() - in_start - in_span);
 463
 464                         pixel += in_span;
 465                 }
 466                 else
 467                 {
 468 // Sanity check
 469                         break;
 470                 }
 471         }
 472
 473         if(over_timer)
 474         {
 475                 if(orientation == METER_HORIZ)
 476                         draw_pixmap(images[METER_OVER],
 477                                 10,
 478                                 2);
 479                 else
 480                         draw_pixmap(images[METER_OVER],
 481                                 x + 2,
 482                                 get_h() - 100);
 483
 484                 over_timer--;
 485         }
 486
 487         if(orientation == METER_HORIZ)
 488                 flash(0, 0, pixels, get_h());
 489         else
 490                 flash(x, 0, w, pixels);
 491         flush();
 492 }
 493
 494 int BC_Meter::update(float new_value, int over)
 495 {
 496         peak_timer++;
 497
 498         if(mode == METER_DB)
 499         {
 500                 if(new_value == 0)
 501                         level = min;
 502                 else
 503                         level = db.todb(new_value);        // db value
 504         }
 505
 506         if(level > peak || peak_timer > peak_delay)
 507         {
 508                 peak = level;
 509                 peak_timer = 0;
 510         }
 511
 512 // if(orientation == METER_HORIZ)
 513 // printf("BC_Meter::update %f\n", level);
 514         if(over) over_timer = over_delay;
 515 // only draw if window is visible
 516
 517         draw_face();
 518         return 0;
 519 }