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 #define METER_NORMAL 0
  12 #define METER_GREEN 1
  13 #define METER_RED 2
  14 #define METER_YELLOW 3
  15 #define METER_OVER 4
  16
  17 #define METER_LEFT 0
  18 #define METER_MID 1
  19 #define METER_RIGHT 3
  20
  21
  22 BC_Meter::BC_Meter(int x,
  23         int y,
  24         int orientation,
  25         int pixels,
  26         float min,
  27         int mode,
  28         int use_titles,
  29         long over_delay,
  30         long peak_delay)
  31  : BC_SubWindow(x, y, -1, -1)
  32 {
  33         this->use_titles = use_titles;
  34         this->over_delay = over_delay;
  35         this->peak_delay = peak_delay;
  36         this->min = min;
  37         this->mode = mode;
  38         this->orientation = orientation;
  39         this->pixels = pixels;
  40         for(int i = 0; i < TOTAL_METER_IMAGES; i++) images[i] = 0;
  41         title_pixel = 0;
  42         db_titles = 0;
  43         meter_titles = 0;
  44 }
  45
  46 BC_Meter::~BC_Meter()
  47 {
  48         if(db_titles)
  49         {
  50                 for(int i = 0; i < meter_titles; i++) delete [] db_titles[i];
  51                 delete [] db_titles;
  52         }
  53         if(title_pixel) delete [] title_pixel;
  54         for(int i = 0; i < TOTAL_METER_IMAGES; i++) delete images[i];
  55 }
  56
  57 int BC_Meter::get_title_w()
  58 {
  59         return get_resources()->meter_title_w;
  60 }
  61
  62 int BC_Meter::get_meter_w()
  63 {
  64         return get_resources()->ymeter_images[0]->get_w() + 2;
  65 }
  66
  67
  68 int BC_Meter::set_delays(int over_delay, int peak_delay)
  69 {
  70         this->over_delay = over_delay;
  71         this->peak_delay = peak_delay;
  72         return 0;
  73 }
  74
  75 int BC_Meter::initialize()
  76 {
  77         peak_timer = 0;
  78         level_pixel = peak_pixel = 0;
  79         over_timer = 0;
  80         over_count = 0;
  81         peak = level = -100;
  82
  83         if(orientation == METER_VERT)
  84         {
  85                 set_images(get_resources()->ymeter_images);
  86                 h = pixels;
  87                 w = images[0]->get_w();
  88                 if(use_titles) w += get_title_w();
  89         }
  90         else
  91         {
  92                 set_images(get_resources()->xmeter_images);
  93                 h = images[0]->get_h();
  94                 w = pixels;
  95                 if(use_titles) h += get_title_w();
  96         }
  97
  98 // calibrate the db titles
  99         get_divisions();
 100
 101         BC_SubWindow::initialize();
 102         draw_titles();
 103         draw_face();
 104         return 0;
 105 }
 106
 107 void BC_Meter::set_images(VFrame **data)
 108 {
 109         for(int i = 0; i < TOTAL_METER_IMAGES; i++) delete images[i];
 110         for(int i = 0; i < TOTAL_METER_IMAGES; i++)
 111                 images[i] = new BC_Pixmap(parent_window, data[i], PIXMAP_ALPHA);
 112 }
 113
 114 int BC_Meter::reposition_window(int x, int y, int pixels)
 115 {
 116         if(pixels < 0) pixels = this->pixels;
 117         this->pixels = pixels;
 118         if(orientation == METER_VERT)
 119                 BC_SubWindow::reposition_window(x, y, get_w(), pixels);
 120         else
 121                 BC_SubWindow::reposition_window(x, y, pixels, get_h());
 122
 123 //printf("BC_Meter::reposition_window 1 %d %d %d %d\n", x, y, w, h);
 124         get_divisions();
 125
 126 //set_color(WHITE);
 127 //draw_box(0, 0, w, h);
 128 //flash();
 129 //return 0;
 130         draw_titles();
 131         draw_face();
 132         return 0;
 133 }
 134
 135 int BC_Meter::reset()
 136 {
 137         level = min;
 138         peak = min;
 139         level_pixel = peak_pixel = 0;
 140         peak_timer = 0;
 141         over_timer = 0;
 142         over_count = 0;
 143         draw_face();
 144         return 0;
 145 }
 146
 147 int BC_Meter::button_press_event()
 148 {
 149         if(cursor_inside() && is_event_win())
 150         {
 151                 reset_over();
 152                 return 1;
 153         }
 154         return 0;
 155 }
 156
 157
 158 int BC_Meter::reset_over()
 159 {
 160         over_timer = 0;
 161         return 0;
 162 }
 163
 164 int BC_Meter::change_format(int mode, float min)
 165 {
 166         this->mode = mode;
 167         this->min = min;
 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 = pixels - 4 - (int)((level / min) * (pixels - 4));
 178                 if(level == 0) result = pixels;
 179         }
 180         else
 181         {
 182                 result = (int)(level * (pixels - 4));
 183         }
 184
 185         return result;
 186 }
 187
 188
 189 void BC_Meter::get_divisions()
 190 {
 191         int i;
 192         float j, j_step;
 193         float division, division_step;
 194         char string[1024];
 195
 196         if(db_titles)
 197         {
 198                 for(int i = 0; i < meter_titles; i++) delete [] db_titles[i];
 199                 delete [] db_titles;
 200         }
 201         if(title_pixel) delete [] title_pixel;
 202
 203         meter_titles = labs((int)(min / 5)) + 1;
 204         title_pixel = new int[meter_titles];
 205
 206         if(use_titles)
 207         {
 208                 db_titles = new char*[meter_titles];
 209                 for(i = 0; i < meter_titles; i++) db_titles[i] = 0;
 210         }
 211
 212         division = METER_MARGIN;
 213         division_step = (float)(pixels - METER_MARGIN * 3) / (meter_titles - 1);
 214         j = 0;     // number for title
 215         j_step = min / (meter_titles - 1);
 216
 217         for(i = 0; i < meter_titles; i++)
 218         {
 219
 220                 if(use_titles)
 221                 {
 222                         sprintf(string, "%.0f", fabs(-j));
 223                         db_titles[i] = new char[strlen(string) + 1];
 224                         strcpy(db_titles[i], string);
 225                 }
 226
 227                 title_pixel[i] = (int)(division);
 228
 229                 division += division_step;
 230                 j += j_step;
 231         }
 232
 233         medium_division = pixels - title_pixel[(meter_titles-1)*1/6];
 234         low_division = pixels - title_pixel[(meter_titles-1)*2/5];
 235 }
 236
 237 void BC_Meter::draw_titles()
 238 {
 239         if(!use_titles) return;
 240
 241         set_font(get_resources()->meter_font);
 242
 243         if(orientation == METER_HORIZ)
 244         {
 245                 draw_top_background(parent_window, 0, 0, get_w(), get_title_w());
 246
 247                 for(int i = 0; i < meter_titles; i++)
 248                 {
 249                         draw_text(0, title_pixel[i], db_titles[i]);
 250                 }
 251
 252                 flash(0, 0, get_w(), get_title_w());
 253         }
 254         else
 255         if(orientation == METER_VERT)
 256         {
 257                 draw_top_background(parent_window, 0, 0, get_title_w(), get_h());
 258
 259
 260                 for(int i = 0; i < meter_titles; i++)
 261                 {
 262 // Tick marks
 263                         if(i < meter_titles - 1)
 264                         {
 265                                 for(int j = 0; j < 6; j++)
 266                                 {
 267                                         int y1;
 268                                         int y2;
 269                                         int y;
 270
 271                                         y1 = title_pixel[i];
 272                                         y2 = title_pixel[i + 1];
 273                                         y = (int)((float)(y2 - y1) * j / 5 + 0.5) + y1;
 274
 275                                         if(j == 0 || j == 5)
 276                                         {
 277                                                 set_color(get_resources()->meter_font_color);
 278                                                 draw_line(get_title_w() - 10 - 1, y, get_title_w() - 1, y);
 279                                                 if(get_resources()->meter_3d)
 280                                                 {
 281                                                         set_color(BLACK);
 282                                                         draw_line(get_title_w() - 10, y + 1, get_title_w(), y + 1);
 283                                                 }
 284                                         }
 285                                         else
 286                                         {
 287                                                 set_color(get_resources()->meter_font_color);
 288                                                 draw_line(get_title_w() - 5 - 1, y, get_title_w() - 1, y);
 289                                                 if(get_resources()->meter_3d)
 290                                                 {
 291                                                         set_color(BLACK);
 292                                                         draw_line(get_title_w() - 5, y + 1, get_title_w(), y + 1);
 293                                                 }
 294                                         }
 295                                 }
 296                         }
 297
 298                         set_color(get_resources()->meter_font_color);
 299                         if(i == 0)
 300                                 draw_text(0, title_pixel[i] + get_text_height(SMALLFONT_3D) / 2, db_titles[i]);
 301                         else
 302                                 draw_text(0, title_pixel[i] + get_text_height(SMALLFONT_3D) / 2, db_titles[i]);
 303                 }
 304
 305                 flash(0, 0, get_title_w(), get_h());
 306         }
 307 }
 308
 309 int BC_Meter::region_pixel(int region)
 310 {
 311         VFrame **reference_images = get_resources()->xmeter_images;
 312         int result;
 313
 314         if(region == METER_RIGHT)
 315                 result = region * reference_images[0]->get_w() / 4;
 316         else
 317                 result = region * reference_images[0]->get_w() / 4;
 318
 319         return result;
 320 }
 321
 322 int BC_Meter::region_pixels(int region)
 323 {
 324         int x1;
 325         int x2;
 326         int result;
 327         VFrame **reference_images = get_resources()->xmeter_images;
 328
 329         x1 = region * reference_images[0]->get_w() / 4;
 330         x2 = (region + 1) * reference_images[0]->get_w() / 4;
 331         if(region == METER_MID)
 332                 result = (x2 - x1) * 2;
 333         else
 334                 result = x2 - x1;
 335         return result;
 336 }
 337
 338 void BC_Meter::draw_face()
 339 {
 340         VFrame **reference_images = get_resources()->xmeter_images;
 341         int level_pixel = level_to_pixel(level);
 342         int peak_pixel2 = level_to_pixel(peak);
 343         int peak_pixel1 = peak_pixel2 - 2;
 344         int left_pixel = region_pixel(METER_MID);
 345         int right_pixel = pixels - region_pixels(METER_RIGHT);
 346         int pixel = 0;
 347         int image_number = 0, region = 0;
 348         int in_span, in_start;
 349         int x = use_titles ? get_title_w() : 0;
 350         int w = use_titles ? this->w - get_title_w() : this->w;
 351
 352         draw_top_background(parent_window, x, 0, w, h);
 353 //printf("BC_Meter::draw_face %d %d\n", w, h);
 354
 355         while(pixel < pixels)
 356         {
 357 // Select image to draw
 358                 if(pixel < level_pixel ||
 359                         (pixel >= peak_pixel1 && pixel < peak_pixel2))
 360                 {
 361                         if(pixel < low_division)
 362                                 image_number = METER_GREEN;
 363                         else
 364                         if(pixel < medium_division)
 365                                 image_number = METER_YELLOW;
 366                         else
 367                                 image_number = METER_RED;
 368                 }
 369                 else
 370                 {
 371                         image_number = METER_NORMAL;
 372                 }
 373
 374 // Select region of image to duplicate
 375                 if(pixel < left_pixel)
 376                 {
 377                         region = METER_LEFT;
 378                         in_start = pixel + region_pixel(region);
 379                         in_span = region_pixels(region) - (in_start - region_pixel(region));
 380                 }
 381                 else
 382                 if(pixel < right_pixel)
 383                 {
 384                         region = METER_MID;
 385                         in_start = region_pixel(region);
 386                         in_span = region_pixels(region);
 387                 }
 388                 else
 389                 {
 390                         region = METER_RIGHT;
 391                         in_start = (pixel - right_pixel) + region_pixel(region);
 392                         in_span = region_pixels(region) - (in_start - region_pixel(region));;
 393                 }
 394
 395 //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);
 396                 if(in_span > 0)
 397                 {
 398 // Clip length to peaks
 399                         if(pixel < level_pixel && pixel + in_span > level_pixel)
 400                                 in_span = level_pixel - pixel;
 401                         else
 402                         if(pixel < peak_pixel1 && pixel + in_span > peak_pixel1)
 403                                 in_span = peak_pixel1 - pixel;
 404                         else
 405                         if(pixel < peak_pixel2 && pixel + in_span > peak_pixel2)
 406                                 in_span = peak_pixel2 - pixel;
 407
 408 // Clip length to color changes
 409                         if(image_number == METER_GREEN && pixel + in_span > low_division)
 410                                 in_span = low_division - pixel;
 411                         else
 412                         if(image_number == METER_YELLOW && pixel + in_span > medium_division)
 413                                 in_span = medium_division - pixel;
 414
 415 // Clip length to regions
 416                         if(pixel < left_pixel && pixel + in_span > left_pixel)
 417                                 in_span = left_pixel - pixel;
 418                         else
 419                         if(pixel < right_pixel && pixel + in_span > right_pixel)
 420                                 in_span = right_pixel - pixel;
 421
 422 //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);
 423 //printf("BC_Meter::draw_face %d %d %d %d\n", orientation, region, images[image_number]->get_h() - in_start - in_span);
 424                         if(orientation == METER_HORIZ)
 425                                 draw_pixmap(images[image_number],
 426                                         pixel,
 427                                         x,
 428                                         in_span + 1,
 429                                         get_h(),
 430                                         in_start,
 431                                         0);
 432                         else
 433                                 draw_pixmap(images[image_number],
 434                                         x,
 435                                         get_h() - pixel - in_span,
 436                                         get_w(),
 437                                         in_span + 1,
 438                                         0,
 439                                         images[image_number]->get_h() - in_start - in_span);
 440
 441                         pixel += in_span;
 442                 }
 443         }
 444
 445         if(over_timer)
 446         {
 447                 if(orientation == METER_HORIZ)
 448                         draw_pixmap(images[METER_OVER],
 449                                 10,
 450                                 2);
 451                 else
 452                         draw_pixmap(images[METER_OVER],
 453                                 x + 2,
 454                                 get_h() - 100);
 455
 456                 over_timer--;
 457         }
 458
 459         if(orientation == METER_HORIZ)
 460                 flash(0, 0, pixels, get_h());
 461         else
 462                 flash(x, 0, w, pixels);
 463 }
 464
 465 int BC_Meter::update(float new_value, int over)
 466 {
 467         peak_timer++;
 468
 469         if(mode == METER_DB)
 470         {
 471                 if(new_value == 0)
 472                         level = min;
 473                 else
 474                         level = db.todb(new_value);        // db value
 475         }
 476
 477         if(level > peak || peak_timer > peak_delay)
 478         {
 479                 peak = level;
 480                 peak_timer = 0;
 481         }
 482
 483 //printf("BC_Meter::update %f\n", level);
 484         if(over) over_timer = over_delay;
 485 // only draw if window is visible
 486
 487         draw_face();
 488         return 0;
 489 }