sdl_gui.c

   1 /*
   2  * Copyright (C) 2003-2007 Andre Noll <maan@systemlinux.org>
   3  *
   4  * Licensed under the GPL v2. For licencing details see COPYING.
   5  */
   6
   7 /** \file sdl_gui.c SDL-based interface for paraslash */
   8
   9 #include "para.h"
  10 #include "string.h"
  11 #include "fd.h"
  12
  13
  14 #include <SDL/SDL.h>
  15 #include "SFont.h"
  16
  17 #include <SDL/SDL_image.h>
  18 #include <SDL/SDL_events.h>
  19 #include <SDL/SDL_keyboard.h>
  20 #include <SDL/SDL_keysym.h>
  21 #include <sys/time.h> /* timeval, needed for select */
  22
  23 #include "sdl_gui.cmdline.h"
  24
  25 #define FRAME_RED 100
  26 #define FRAME_GREEN 200
  27 #define FRAME_BLUE 200
  28
  29 SDL_Surface *screen;
  30 static int width = 0;
  31 static int height = 0;
  32
  33 extern const char *status_item_list[NUM_STAT_ITEMS];
  34 struct sdl_gui_args_info args_info;
  35
  36 #define FRAME_WIDTH 10
  37 #define FONT_HEIGHT 36
  38
  39 #define INPUT_WIDTH width - 2 * FRAME_WIDTH
  40 #define INPUT_X FRAME_WIDTH
  41 #define INPUT_HEIGHT (args_info.interactive_flag? FONT_HEIGHT : 0)
  42 #define INPUT_Y height - FRAME_WIDTH - INPUT_HEIGHT
  43
  44 #define OUTPUT_WIDTH width - 2 * FRAME_WIDTH
  45 #define OUTPUT_X FRAME_WIDTH
  46 #define OUTPUT_Y FRAME_WIDTH
  47 #define OUTPUT_HEIGHT (height - INPUT_HEIGHT - 2 * FRAME_WIDTH)
  48
  49 #define NUM_LINES (height - 2 * FRAME_WIDTH - INPUT_HEIGHT) / FONT_HEIGHT
  50
  51 #define M_YELLOW 0
  52 #define N_YELLOW 1
  53
  54 #define LEFT 1
  55 #define RIGHT 2
  56 #define CENTER 3
  57
  58
  59 struct stat_item{
  60         const char *name;
  61         const char *prefix;
  62         const char *postfix;
  63         char *content;
  64         unsigned x;
  65         unsigned y;
  66         unsigned w;
  67         unsigned h;
  68         Uint8 r;
  69         Uint8 g;
  70         Uint8 b;
  71         int font;
  72         int align;
  73 };
  74
  75 struct font {
  76         char name[MAXLINE];
  77         SFont_FontInfo fontinfo;
  78 };
  79
  80 struct font fonts[] = {
  81         {
  82                 .name = "24P_Arial_Metallic_Yellow.png",
  83                 .fontinfo = {NULL, {0}, 0}
  84         },
  85         {
  86                 .name = "24P_Arial_NeonYellow.png",
  87                 .fontinfo = {NULL, {0}, 0}
  88         },
  89         {
  90                 .name = "24P_Copperplate_Blue.png",
  91                 .fontinfo = {NULL, {0}, 0}
  92         },
  93         {
  94                 .name = "",
  95                 .fontinfo = {NULL, {0}, 0}
  96         }
  97 };
  98
  99
 100 #define PIC_WIDTH width * 3 / 10
 101 #define PIC_HEIGHT height / 3
 102
 103 #define INPUT_FONT 0
 104 #define OUTPUT_FONT 1
 105 #define MSG_FONT 2
 106
 107
 108 static struct stat_item stat_items[NUM_STAT_ITEMS];
 109
 110 void para_log(__a_unused int ll, __a_unused const char* fmt,...) /* no logging */
 111 {
 112 }
 113
 114 static void init_stat_items(void)
 115 {
 116         int i;
 117         struct stat_item *s = stat_items;
 118
 119         for (i = 0; i < NUM_STAT_ITEMS; i++) {
 120                 s[i].w = 0;
 121                 s[i].content = NULL;
 122         }
 123
 124
 125         s[SI_STATUS_BAR].prefix = "";
 126         s[SI_STATUS_BAR].postfix = "";
 127         s[SI_STATUS_BAR].x = 0;
 128         s[SI_STATUS_BAR].y = 10;
 129         s[SI_STATUS_BAR].w = 100;
 130         s[SI_STATUS_BAR].h = FONT_HEIGHT;
 131         s[SI_STATUS_BAR].r = 0;
 132         s[SI_STATUS_BAR].g = 0;
 133         s[SI_STATUS_BAR].b = 0;
 134         s[SI_STATUS_BAR].font = M_YELLOW;
 135         s[SI_STATUS_BAR].align = CENTER;
 136
 137         s[SI_PLAY_TIME].prefix = "";
 138         s[SI_PLAY_TIME].postfix = "";
 139         s[SI_PLAY_TIME].x = 35;
 140         s[SI_PLAY_TIME].y = 20;
 141         s[SI_PLAY_TIME].w = 65;
 142         s[SI_PLAY_TIME].h = FONT_HEIGHT;
 143         s[SI_PLAY_TIME].r = 0;
 144         s[SI_PLAY_TIME].g = 0;
 145         s[SI_PLAY_TIME].b = 0;
 146         s[SI_PLAY_TIME].font = M_YELLOW;
 147         s[SI_PLAY_TIME].align = CENTER;
 148
 149         s[SI_STATUS].prefix = "";
 150         s[SI_STATUS].postfix = "";
 151         s[SI_STATUS].x = 35;
 152         s[SI_STATUS].y = 28;
 153         s[SI_STATUS].w = 12;
 154         s[SI_STATUS].h = FONT_HEIGHT;
 155         s[SI_STATUS].r = 0;
 156         s[SI_STATUS].g = 0;
 157         s[SI_STATUS].b = 0;
 158         s[SI_STATUS].font = N_YELLOW;
 159         s[SI_STATUS].align = LEFT;
 160
 161         s[SI_STATUS_FLAGS].prefix = " (";
 162         s[SI_STATUS_FLAGS].postfix = ")";
 163         s[SI_STATUS_FLAGS].x = 47;
 164         s[SI_STATUS_FLAGS].y = 28;
 165         s[SI_STATUS_FLAGS].w = 15;
 166         s[SI_STATUS_FLAGS].h = FONT_HEIGHT;
 167         s[SI_STATUS_FLAGS].r = 0;
 168         s[SI_STATUS_FLAGS].g = 0;
 169         s[SI_STATUS_FLAGS].b = 0;
 170         s[SI_STATUS_FLAGS].font = N_YELLOW;
 171         s[SI_STATUS_FLAGS].align = CENTER;
 172
 173         s[SI_NUM_PLAYED].prefix = "#";
 174         s[SI_NUM_PLAYED].postfix = "";
 175         s[SI_NUM_PLAYED].x = 62;
 176         s[SI_NUM_PLAYED].y = 28;
 177         s[SI_NUM_PLAYED].w = 13;
 178         s[SI_NUM_PLAYED].h = FONT_HEIGHT;
 179         s[SI_NUM_PLAYED].r = 0;
 180         s[SI_NUM_PLAYED].g = 0;
 181         s[SI_NUM_PLAYED].b = 0;
 182         s[SI_NUM_PLAYED].font = N_YELLOW;
 183         s[SI_NUM_PLAYED].align = CENTER;
 184
 185         s[SI_UPTIME].prefix = "Up: ";
 186         s[SI_UPTIME].postfix = "";
 187         s[SI_UPTIME].x = 75;
 188         s[SI_UPTIME].y = 28;
 189         s[SI_UPTIME].w = 25;
 190         s[SI_UPTIME].h = FONT_HEIGHT;
 191         s[SI_UPTIME].r = 0;
 192         s[SI_UPTIME].g = 0;
 193         s[SI_UPTIME].b = 0;
 194         s[SI_UPTIME].font = N_YELLOW;
 195         s[SI_UPTIME].align = RIGHT;
 196
 197         s[SI_SELECTOR].prefix = "selector: ";
 198         s[SI_SELECTOR].postfix = "";
 199         s[SI_SELECTOR].x = 35;
 200         s[SI_SELECTOR].y = 48;
 201         s[SI_SELECTOR].w = 35;
 202         s[SI_SELECTOR].h = FONT_HEIGHT;
 203         s[SI_SELECTOR].r = 0;
 204         s[SI_SELECTOR].g = 0;
 205         s[SI_SELECTOR].b = 0;
 206         s[SI_SELECTOR].font = N_YELLOW;
 207         s[SI_SELECTOR].align = LEFT;
 208
 209         s[SI_FORMAT].prefix = "Format: ";
 210         s[SI_FORMAT].postfix = "";
 211         s[SI_FORMAT].x = 70;
 212         s[SI_FORMAT].y = 48;
 213         s[SI_FORMAT].w = 30;
 214         s[SI_FORMAT].h = FONT_HEIGHT;
 215         s[SI_FORMAT].r = 0;
 216         s[SI_FORMAT].g = 0;
 217         s[SI_FORMAT].b = 0;
 218         s[SI_FORMAT].font = N_YELLOW;
 219         s[SI_FORMAT].align = RIGHT;
 220
 221         s[SI_MTIME].prefix = "MTime: ";
 222         s[SI_MTIME].postfix = "";
 223         s[SI_MTIME].x = 35;
 224         s[SI_MTIME].y = 35;
 225         s[SI_MTIME].w = 65;
 226         s[SI_MTIME].h = FONT_HEIGHT;
 227         s[SI_MTIME].r = 0;
 228         s[SI_MTIME].g = 0;
 229         s[SI_MTIME].b = 0;
 230         s[SI_MTIME].font = N_YELLOW;
 231         s[SI_MTIME].align = LEFT;
 232
 233         s[SI_FILE_SIZE].prefix = "Size: ";
 234         s[SI_FILE_SIZE].postfix = "kb";
 235         s[SI_FILE_SIZE].x = 35;
 236         s[SI_FILE_SIZE].y = 42;
 237         s[SI_FILE_SIZE].w = 20;
 238         s[SI_FILE_SIZE].h = FONT_HEIGHT;
 239         s[SI_FILE_SIZE].r = 0;
 240         s[SI_FILE_SIZE].g = 0;
 241         s[SI_FILE_SIZE].b = 0;
 242         s[SI_FILE_SIZE].font = N_YELLOW;
 243         s[SI_FILE_SIZE].align = LEFT;
 244
 245         s[SI_AUDIO_INFO1].prefix = "";
 246         s[SI_AUDIO_INFO1].postfix = "";
 247         s[SI_AUDIO_INFO1].x = 0;
 248         s[SI_AUDIO_INFO1].y = 60;
 249         s[SI_AUDIO_INFO1].w = 100;
 250         s[SI_AUDIO_INFO1].h = FONT_HEIGHT;
 251         s[SI_AUDIO_INFO1].r = 0;
 252         s[SI_AUDIO_INFO1].g = 0;
 253         s[SI_AUDIO_INFO1].b = 0;
 254         s[SI_AUDIO_INFO1].font = N_YELLOW;
 255         s[SI_AUDIO_INFO1].align = CENTER;
 256
 257         s[SI_AUDIO_INFO2].prefix = "";
 258         s[SI_AUDIO_INFO2].postfix = "";
 259         s[SI_AUDIO_INFO2].x = 0;
 260         s[SI_AUDIO_INFO2].y = 65;
 261         s[SI_AUDIO_INFO2].w = 100;
 262         s[SI_AUDIO_INFO2].h = FONT_HEIGHT;
 263         s[SI_AUDIO_INFO2].r = 0;
 264         s[SI_AUDIO_INFO2].g = 0;
 265         s[SI_AUDIO_INFO2].b = 0;
 266         s[SI_AUDIO_INFO2].font = N_YELLOW;
 267         s[SI_AUDIO_INFO2].align = CENTER;
 268
 269         s[SI_AUDIO_INFO3].prefix = "";
 270         s[SI_AUDIO_INFO3].postfix = "";
 271         s[SI_AUDIO_INFO3].x = 0;
 272         s[SI_AUDIO_INFO3].y = 70;
 273         s[SI_AUDIO_INFO3].w = 100;
 274         s[SI_AUDIO_INFO3].h = FONT_HEIGHT;
 275         s[SI_AUDIO_INFO3].r = 0;
 276         s[SI_AUDIO_INFO3].g = 0;
 277         s[SI_AUDIO_INFO3].b = 0;
 278         s[SI_AUDIO_INFO3].font = N_YELLOW;
 279         s[SI_AUDIO_INFO3].align = CENTER;
 280
 281         s[SI_DBINFO1].name = "dbinfo1:";
 282         s[SI_DBINFO1].prefix = "";
 283         s[SI_DBINFO1].postfix = "";
 284         s[SI_DBINFO1].x = 0;
 285         s[SI_DBINFO1].y = 83;
 286         s[SI_DBINFO1].w = 100;
 287         s[SI_DBINFO1].h = FONT_HEIGHT;
 288         s[SI_DBINFO1].r = 0;
 289         s[SI_DBINFO1].g = 0;
 290         s[SI_DBINFO1].b = 0;
 291         s[SI_DBINFO1].font = N_YELLOW;
 292         s[SI_DBINFO1].align = CENTER;
 293
 294         s[SI_DBINFO2].prefix = "";
 295         s[SI_DBINFO2].postfix = "";
 296         s[SI_DBINFO2].x = 0;
 297         s[SI_DBINFO2].y = 88;
 298         s[SI_DBINFO2].w = 100;
 299         s[SI_DBINFO2].h = FONT_HEIGHT;
 300         s[SI_DBINFO2].r = 0;
 301         s[SI_DBINFO2].g = 0;
 302         s[SI_DBINFO2].b = 0;
 303         s[SI_DBINFO2].font = N_YELLOW;
 304         s[SI_DBINFO2].align = CENTER;
 305
 306         s[SI_DBINFO3].name = "dbinfo3:";
 307         s[SI_DBINFO3].prefix = "";
 308         s[SI_DBINFO3].postfix = "";
 309         s[SI_DBINFO3].x = 0;
 310         s[SI_DBINFO3].y = 93;
 311         s[SI_DBINFO3].w = 100;
 312         s[SI_DBINFO3].h = FONT_HEIGHT;
 313         s[SI_DBINFO3].r = 0;
 314         s[SI_DBINFO3].g = 0;
 315         s[SI_DBINFO3].b = 0;
 316         s[SI_DBINFO3].font = N_YELLOW;
 317         s[SI_DBINFO3].align = CENTER;
 318 }
 319
 320 /*
 321  * init SDL libary and set window title
 322  */
 323 static void init_SDL(void)
 324 {
 325         if (SDL_Init(SDL_INIT_VIDEO) == -1) {
 326                 fprintf(stderr,
 327                         "Couldn't initialize SDL: %s\n", SDL_GetError());
 328                 exit(1);
 329         }
 330         /* Clean up on exit */
 331         atexit(SDL_Quit);
 332         /* Initialize the display */
 333         if (args_info.fullscreen_flag)
 334                 screen = SDL_SetVideoMode(width, height, 0, SDL_FULLSCREEN);
 335         else
 336                 screen = SDL_SetVideoMode(width, height, 0, 0);
 337         if (!screen) {
 338                 fprintf(stderr, "Couldn't set video mode: %s\n",
 339                         SDL_GetError());
 340                 exit(1);
 341         }
 342         SDL_EventState(SDL_MOUSEMOTION, SDL_IGNORE);
 343         SDL_EventState(SDL_MOUSEBUTTONDOWN, SDL_IGNORE);
 344         SDL_EventState(SDL_MOUSEBUTTONUP, SDL_IGNORE);
 345         /* Set the window manager title bar */
 346         SDL_WM_SetCaption("The Gui of death that makes you blind (paraslash "
 347                 PACKAGE_VERSION ")", "SFont");
 348 }
 349
 350 /*
 351  * draw rectangular frame of width FRAME_WIDTH
 352  */
 353 static void draw_frame(Uint8 r, Uint8 g, Uint8 b) {
 354         SDL_Rect rect;
 355
 356         rect.x = 0;
 357         rect.y = 0;
 358         rect.w = width;
 359         rect.h = FRAME_WIDTH;
 360         SDL_FillRect(screen, &rect, SDL_MapRGB(screen->format, r, g, b));
 361         SDL_UpdateRect(screen, rect.x, rect.y, rect.w, rect.h);
 362
 363         rect.x = 0;
 364         rect.y = height - FRAME_WIDTH;
 365         rect.w = width;
 366         rect.h = FRAME_WIDTH;
 367         SDL_FillRect(screen, &rect, SDL_MapRGB(screen->format, r, g, b));
 368         SDL_UpdateRect(screen, rect.x, rect.y, rect.w, rect.h);
 369
 370         rect.x = 0;
 371         rect.y = FRAME_WIDTH;
 372         rect.w = FRAME_WIDTH;
 373         rect.h = height -  2 * FRAME_WIDTH;
 374         SDL_FillRect(screen, &rect, SDL_MapRGB(screen->format, r, g, b));
 375         SDL_UpdateRect(screen, rect.x, rect.y, rect.w, rect.h);
 376
 377         rect.x = width - FRAME_WIDTH;
 378         rect.y = FRAME_WIDTH;
 379         rect.w = FRAME_WIDTH;
 380         rect.h = height -  2 * FRAME_WIDTH;
 381         SDL_FillRect(screen, &rect, SDL_MapRGB(screen->format, r, g, b));
 382         SDL_UpdateRect(screen, rect.x, rect.y, rect.w, rect.h);
 383 }
 384
 385 /*
 386  * fill input rect with color
 387  */
 388 static void fill_input_rect(void)
 389 {
 390         SDL_Rect rect;
 391
 392         rect.x = INPUT_X;
 393         rect.y = INPUT_Y;
 394         rect.w = INPUT_WIDTH;
 395         rect.h = INPUT_HEIGHT;
 396         SDL_FillRect(screen, &rect, SDL_MapRGB(screen->format, 10, 150, 10));
 397 }
 398
 399 /*
 400  * fill output rect with color
 401  */
 402 static void fill_output_rect(void)
 403 {
 404         SDL_Rect rect;
 405
 406         rect.x = OUTPUT_X;
 407         rect.y = OUTPUT_Y;
 408         rect.w = OUTPUT_WIDTH;
 409         rect.h = OUTPUT_HEIGHT;
 410         SDL_FillRect(screen, &rect, SDL_MapRGB(screen->format, 0, 0, 0));
 411 }
 412
 413 /*
 414  * convert tab to space
 415  */
 416 static void tab2space(char *text)
 417 {
 418         char *p = text;
 419         while (*p) {
 420                 if (*p == '\t')
 421                         *p = ' ';
 422                 p++;
 423         }
 424 }
 425
 426 static void print_msg(const char *msg)
 427 {
 428         SFont_FontInfo *font = &(fonts[MSG_FONT].fontinfo);
 429         char *buf = strdup(msg);
 430         int len = strlen(buf);
 431
 432         if (!buf)
 433                 return;
 434         while (TextWidth2(font, buf) > INPUT_WIDTH && len > 0) {
 435                 *(buf + len) = '\0';
 436                 len--;
 437         }
 438         fill_input_rect();
 439         PutString2(screen, font, INPUT_X, INPUT_Y, buf);
 440         free(buf);
 441 }
 442
 443 static void update_all(void)
 444 {
 445         SDL_UpdateRect(screen, 0, 0, 0, 0);
 446 }
 447
 448 static void update_input(void)
 449 {
 450         SDL_UpdateRect(screen, INPUT_X, INPUT_Y, INPUT_WIDTH, INPUT_HEIGHT);
 451
 452 }
 453
 454 /*
 455  * wait for key, ignore all other events, return 0 if there is no key event
 456  * pending. Otherwise return keysym of key
 457  */
 458 SDLKey get_key(void)
 459 {
 460         SDL_Event event;
 461
 462         while (SDL_PollEvent(&event) > 0) {
 463                 if(event.type != SDL_KEYDOWN)
 464                         continue;
 465 //              printf("Key pressed, scancode: 0x%x\n",
 466 //                      event.key.keysym.scancode);
 467                 return event.key.keysym.sym;
 468         }
 469         return 0;
 470 }
 471
 472 /*
 473  * print message, wait for key (blocking), return 1 for 'q', 0 else
 474  */
 475 static SDLKey hit_key(const char *msg)
 476 {
 477         SDLKey sym;
 478
 479         print_msg(msg);
 480         update_input();
 481         while (!(sym = get_key()))
 482                 ;
 483         fill_input_rect();
 484         update_input();
 485         if (sym == SDLK_q)
 486                 return 1;
 487         else
 488                 return 0;
 489 }
 490
 491 /*
 492  * read paraslash command from input, execute it and print results
 493  */
 494 static int command_handler(void)
 495 {
 496         FILE *f;
 497         unsigned count = 0;
 498         char text[MAXLINE]="";
 499         char buf[MAXLINE]="";
 500         SFont_FontInfo *font = &fonts[OUTPUT_FONT].fontinfo;
 501
 502 //      printf("string input\n");
 503         SFont_Input2(screen, &fonts[INPUT_FONT].fontinfo,
 504                 INPUT_X, INPUT_Y - 5, INPUT_WIDTH, text);
 505         if (!strlen(text))
 506                 return 1;
 507         if (!strcmp(text, "exit") || !strcmp(text, "quit"))
 508                 return 0;
 509         if (text[0] == '!') {
 510                 if (text[1] == '\0')
 511                         return 1;
 512                 f = popen(text + 1, "r");
 513         } else {
 514                 sprintf(buf, BINDIR "/para_client %s 2>&1", text);
 515                 f = popen(buf, "r");
 516         }
 517         if (!f)
 518                 return 0;
 519         fill_output_rect();
 520         while(fgets(text, MAXLINE - 1, f)) {
 521                 int len;
 522
 523                 tab2space(text);
 524                 len = strlen(text);
 525         //      printf("string: %s\n", dest);
 526                 while (TextWidth2(font, text) > width - 2 * FRAME_WIDTH &&
 527                                 len > 0) {
 528                         text[len] = '\0';
 529                         len--;
 530                 }
 531                 PutString2(screen, font, OUTPUT_X,
 532                         OUTPUT_Y + count * FONT_HEIGHT, text);
 533                 count++;
 534                 if (count >= NUM_LINES) {
 535                         update_all();
 536                         if (hit_key("Hit any key to continue, q to return"))
 537                                 goto out;
 538                         count = 0;
 539                         fill_output_rect();
 540                 }
 541         }
 542         update_all();
 543         hit_key("Hit any key to return");
 544 out:    fill_output_rect();
 545         pclose(f);
 546         return 1;
 547 }
 548
 549
 550 /*
 551  * Add prefix and postfix to string, delete characters from the end
 552  * if its length exceeds the max length defined in stat_items[item]
 553  */
 554 char *transform_string(int item)
 555 {
 556         struct stat_item s = stat_items[item];
 557         size_t len;
 558         char *ret;
 559         unsigned pixels = s.w * (width - 2 * FRAME_WIDTH) / 100;
 560         SFont_FontInfo *font = &(fonts[s.font].fontinfo);
 561
 562         ret = make_message("%s%s%s", s.prefix, s.content, s.postfix);
 563         len = strlen(ret);
 564         while (TextWidth2(font, ret) > pixels && len > 0) {
 565                 *(ret + len) = '\0';
 566                 len--;
 567         }
 568         return ret;
 569 }
 570
 571 SDL_Surface *load_jpg(void)
 572 {
 573         SDL_RWops *rwop;
 574         int fds[3] = {0, 1, 0};
 575         pid_t pid;
 576         FILE *f;
 577
 578         if (para_exec_cmdline_pid(&pid, args_info.pic_cmd_arg, fds) < 0)
 579                 return NULL;
 580         f = fdopen(fds[1], "r");
 581         if (!f)
 582                 return NULL;
 583         if (!(rwop = SDL_RWFromFP(f, 0)))
 584                 return NULL;
 585         return IMG_LoadJPG_RW(rwop);
 586 }
 587
 588 void update_pic(void)
 589 {
 590         SDL_Surface *img;
 591         SDL_Rect src_pic_rect = {
 592                 .x = 0,
 593                 .y = 0,
 594                 .w = PIC_WIDTH,
 595                 .h = PIC_HEIGHT,
 596         };
 597         SDL_Rect dest_pic_rect = {
 598                 .x = FRAME_WIDTH,
 599                 .y = OUTPUT_HEIGHT / 5,
 600                 .w = PIC_WIDTH,
 601                 .h = PIC_HEIGHT,
 602         };
 603
 604         if (!screen)
 605                 return;
 606
 607         if (!(img = load_jpg()))
 608                 return;
 609         SDL_FillRect(screen, &dest_pic_rect, SDL_MapRGB(screen->format,
 610                 0, 0, 0));
 611         SDL_BlitSurface(img, &src_pic_rect, screen, &dest_pic_rect);
 612         SDL_Flip(screen);
 613         SDL_FreeSurface(img);
 614 }
 615
 616 /*
 617  * update status item number i.
 618  */
 619 static void do_update(int i)
 620 {
 621         static int last_played = -1;
 622         SDL_Rect rect;
 623         char *buf;
 624         SFont_FontInfo *font = &(fonts[stat_items[i].font].fontinfo);
 625         if (!stat_items[i].w)
 626                 return;
 627
 628         rect.x = stat_items[i].x * (width - FRAME_WIDTH * 2) / 100
 629                 + FRAME_WIDTH;
 630         rect.y = stat_items[i].y * (height - 2 * FRAME_WIDTH - INPUT_HEIGHT)
 631                 / 100;
 632         rect.w = stat_items[i].w * (width - 2 * FRAME_WIDTH) / 100;
 633         rect.h = stat_items[i].h;
 634         buf = transform_string(i);
 635         SDL_FillRect(screen, &rect, SDL_MapRGB(screen->format,
 636                 stat_items[i].r, stat_items[i].g, stat_items[i].b));
 637         switch(stat_items[i].align) {
 638         case CENTER:
 639                 PutString2(screen, font,
 640                         rect.x + (rect.w - TextWidth2(font, buf)) / 2,
 641                         rect.y, buf);
 642                 break;
 643         case LEFT:
 644                 PutString2(screen, font, rect.x, rect.y, buf);
 645                 break;
 646         case RIGHT:
 647                 PutString2(screen, font, rect.x + (rect.w -
 648                         TextWidth2(font, buf)), rect.y, buf);
 649                 break;
 650         }
 651         free(buf);
 652         SDL_UpdateRect(screen, rect.x, rect.y, rect.w, rect.h);
 653         if (i == SI_NUM_PLAYED && atoi(stat_items[i].content) != last_played) {
 654                 update_pic();
 655                 last_played = atoi(stat_items[i].content);
 656         };
 657 }
 658
 659 /*
 660  * Check if buf is a known status line. If so call do_update and return 1.
 661  * Return 0 otherwise.
 662  */
 663 void update_status(char *buf)
 664 {
 665         int i;
 666
 667         i = stat_line_valid(buf);
 668         if (i < 0)
 669                 return;
 670         //free(stat_items[i].content);
 671         stat_items[i].content = para_strdup(buf +
 672                 strlen(status_item_list[i]) + 1);
 673         do_update(i);
 674 }
 675
 676 /*
 677  * Read stat line from pipe if pipe is ready, call update_status to
 678  * display information.
 679  */
 680 static int draw_status(int fd)
 681 {
 682         fd_set rfds;
 683         int ret;
 684         struct timeval tv;
 685
 686         tv.tv_sec = 0;
 687         tv.tv_usec = 3000000;
 688         FD_ZERO(&rfds);
 689         FD_SET(fd, &rfds);
 690         ret = para_select(fd + 1, &rfds, NULL, &tv);
 691         if (ret <= 0)
 692                 return 0;
 693         if (read_audiod_pipe(fd, update_status) > 0)
 694                 return 1;
 695         free(stat_items[SI_STATUS_BAR].content);
 696         stat_items[SI_STATUS_BAR].content =
 697                 para_strdup("audiod not running!?\n");
 698         update_all();
 699         sleep(1);
 700         return -1;
 701 }
 702
 703 static void clean_exit(int ret)
 704 {
 705         SDL_Quit();
 706         exit(ret);
 707 }
 708
 709 static void print_help(void)
 710 {
 711         print_msg("Hit q to quit, any other key to enter command mode");
 712 }
 713
 714 static int configfile_exists(void)
 715 {
 716         if (!args_info.config_file_given) {
 717                 char *home = para_homedir();
 718                 args_info.config_file_arg = make_message(
 719                         "%s/.paraslash/sdl_gui.conf", home);
 720                 free(home);
 721         }
 722         return file_exists(args_info.config_file_arg);
 723 }
 724
 725 /*
 726  * MAIN
 727  */
 728 int main(int argc, char *argv[])
 729 {
 730         int i, ret, fd = -1;
 731         SDLKey sym;
 732
 733         sdl_gui_cmdline_parser(argc, argv, &args_info);
 734         HANDLE_VERSION_FLAG("sdl_gui", args_info);
 735         ret = configfile_exists();
 736 //      printf("w=%i,h=%i,ret=%i, cf=%s\n", width, height, ret, args_info.config_file_arg);
 737
 738         if (!ret && args_info.config_file_given) {
 739                 fprintf(stderr, "Can't read config file %s\n",
 740                         args_info.config_file_arg);
 741                 exit(EXIT_FAILURE);
 742         }
 743         if (ret) {
 744                 struct sdl_gui_cmdline_parser_params params = {
 745                         .override = 0,
 746                         .initialize = 0,
 747                         .check_required = 0,
 748                         .check_ambiguity = 0
 749                 };
 750                 sdl_gui_cmdline_parser_config_file(args_info.config_file_arg,
 751                         &args_info, &params);
 752         }
 753         signal(SIGCHLD, SIG_IGN);
 754         width = args_info.width_arg;
 755         height = args_info.height_arg;
 756 //      printf("w=%i,h=%i,ret=%i, cf=%s\n", width, height, ret, args_info.config_file_arg);
 757         init_stat_items();
 758         init_SDL();
 759         for (i = 0; fonts[i].name[0]; i++) {
 760                 char buf[MAXLINE];
 761                 sprintf(buf, "%s/%s", FONTDIR, fonts[i].name);
 762                 /* Load the font - You don't have to use the IMGlib for this */
 763                 fonts[i].fontinfo.Surface = IMG_Load(buf);
 764                 /* Prepare the font for use */
 765                 InitFont2(&fonts[i].fontinfo);
 766         }
 767         draw_frame(FRAME_RED, FRAME_GREEN, FRAME_BLUE);
 768         if (args_info.interactive_flag) {
 769                 print_help();
 770                 update_input();
 771         }
 772         for (;;) {
 773                 if (fd < 0) {
 774                         fd = para_open_audiod_pipe(args_info.stat_cmd_arg);
 775                         if (fd < 0)
 776                                 clean_exit(EXIT_FAILURE);
 777                 }
 778                 ret = draw_status(fd);
 779                 if (ret < 0) {
 780                         close(fd);
 781                         fd = -1;
 782                 }
 783                 if (SDL_QuitRequested())
 784                         clean_exit(0);
 785                 while ((sym = get_key())) {
 786                         if (!args_info.interactive_flag)
 787                                 clean_exit(0);
 788                         if (sym == SDLK_q)
 789                                 clean_exit(0);
 790                         if (       sym == SDLK_LSHIFT
 791                                 || sym == SDLK_RSHIFT
 792                                 || sym == SDLK_LMETA
 793                                 || sym == SDLK_RMETA
 794                                 || sym == SDLK_RCTRL
 795                                 || sym == SDLK_LCTRL
 796                                 || sym == SDLK_MODE
 797                                 || sym == SDLK_CAPSLOCK
 798                                 || sym == SDLK_LALT
 799                                 || sym == SDLK_RALT
 800                                 || sym == SDLK_RSUPER
 801                                 || sym == SDLK_LSUPER
 802                                 || sym == SDLK_COMPOSE
 803                                 )
 804                                 continue;
 805                         fill_input_rect();
 806                         update_input();
 807                         if (!command_handler())
 808                                 clean_exit(0);
 809                         fill_output_rect();
 810                         print_help();
 811                         update_pic();
 812                         SDL_UpdateRect(screen, 0, 0, 0, 0);
 813                         break;
 814                 }
 815         }
 816 }