2 * Copyright (C) 2003-2007 Andre Noll <maan@systemlinux.org>
4 * Licensed under the GPL v2. For licencing details see COPYING.
7 /** \file sdl_gui.c SDL-based interface for paraslash */
10 #include "gui_common.h"
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 */
23 #include "sdl_gui.cmdline.h"
26 #define FRAME_GREEN 200
27 #define FRAME_BLUE 200
31 static int height = 0;
33 extern const char *status_item_list[NUM_STAT_ITEMS];
34 struct sdl_gui_args_info args_info;
36 #define FRAME_WIDTH 10
37 #define FONT_HEIGHT 36
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
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)
49 #define NUM_LINES (height - 2 * FRAME_WIDTH - INPUT_HEIGHT) / FONT_HEIGHT
77 SFont_FontInfo fontinfo;
80 struct font fonts[] = {
82 .name = "24P_Arial_Metallic_Yellow.png",
83 .fontinfo = {NULL, {0}, 0}
86 .name = "24P_Arial_NeonYellow.png",
87 .fontinfo = {NULL, {0}, 0}
90 .name = "24P_Copperplate_Blue.png",
91 .fontinfo = {NULL, {0}, 0}
95 .fontinfo = {NULL, {0}, 0}
100 #define PIC_WIDTH width * 3 / 10
101 #define PIC_HEIGHT height / 3
104 #define OUTPUT_FONT 1
108 static struct stat_item stat_items[NUM_STAT_ITEMS];
110 void para_log(__a_unused int ll, __a_unused const char* fmt,...) /* no logging */
114 static void init_stat_items(void)
117 struct stat_item *s = stat_items;
119 for (i = 0; i < NUM_STAT_ITEMS; i++) {
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;
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;
149 s[SI_STATUS].prefix = "";
150 s[SI_STATUS].postfix = "";
154 s[SI_STATUS].h = FONT_HEIGHT;
158 s[SI_STATUS].font = N_YELLOW;
159 s[SI_STATUS].align = LEFT;
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;
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;
185 s[SI_UPTIME].prefix = "Up: ";
186 s[SI_UPTIME].postfix = "";
190 s[SI_UPTIME].h = FONT_HEIGHT;
194 s[SI_UPTIME].font = N_YELLOW;
195 s[SI_UPTIME].align = RIGHT;
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;
209 s[SI_FORMAT].prefix = "Format: ";
210 s[SI_FORMAT].postfix = "";
214 s[SI_FORMAT].h = FONT_HEIGHT;
218 s[SI_FORMAT].font = N_YELLOW;
219 s[SI_FORMAT].align = RIGHT;
221 s[SI_MTIME].prefix = "MTime: ";
222 s[SI_MTIME].postfix = "";
226 s[SI_MTIME].h = FONT_HEIGHT;
230 s[SI_MTIME].font = N_YELLOW;
231 s[SI_MTIME].align = LEFT;
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;
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;
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;
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;
281 s[SI_DBINFO1].name = "dbinfo1:";
282 s[SI_DBINFO1].prefix = "";
283 s[SI_DBINFO1].postfix = "";
285 s[SI_DBINFO1].y = 83;
286 s[SI_DBINFO1].w = 100;
287 s[SI_DBINFO1].h = FONT_HEIGHT;
291 s[SI_DBINFO1].font = N_YELLOW;
292 s[SI_DBINFO1].align = CENTER;
294 s[SI_DBINFO2].prefix = "";
295 s[SI_DBINFO2].postfix = "";
297 s[SI_DBINFO2].y = 88;
298 s[SI_DBINFO2].w = 100;
299 s[SI_DBINFO2].h = FONT_HEIGHT;
303 s[SI_DBINFO2].font = N_YELLOW;
304 s[SI_DBINFO2].align = CENTER;
306 s[SI_DBINFO3].name = "dbinfo3:";
307 s[SI_DBINFO3].prefix = "";
308 s[SI_DBINFO3].postfix = "";
310 s[SI_DBINFO3].y = 93;
311 s[SI_DBINFO3].w = 100;
312 s[SI_DBINFO3].h = FONT_HEIGHT;
316 s[SI_DBINFO3].font = N_YELLOW;
317 s[SI_DBINFO3].align = CENTER;
321 * init SDL libary and set window title
323 static void init_SDL(void)
325 if (SDL_Init(SDL_INIT_VIDEO) == -1) {
327 "Couldn't initialize SDL: %s\n", SDL_GetError());
330 /* Clean up on exit */
332 /* Initialize the display */
333 if (args_info.fullscreen_flag)
334 screen = SDL_SetVideoMode(width, height, 0, SDL_FULLSCREEN);
336 screen = SDL_SetVideoMode(width, height, 0, 0);
338 fprintf(stderr, "Couldn't set video mode: %s\n",
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");
351 * draw rectangular frame of width FRAME_WIDTH
353 static void draw_frame(Uint8 r, Uint8 g, Uint8 b) {
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);
364 rect.y = height - FRAME_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);
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);
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);
386 * fill input rect with color
388 static void fill_input_rect(void)
394 rect.w = INPUT_WIDTH;
395 rect.h = INPUT_HEIGHT;
396 SDL_FillRect(screen, &rect, SDL_MapRGB(screen->format, 10, 150, 10));
400 * fill output rect with color
402 static void fill_output_rect(void)
408 rect.w = OUTPUT_WIDTH;
409 rect.h = OUTPUT_HEIGHT;
410 SDL_FillRect(screen, &rect, SDL_MapRGB(screen->format, 0, 0, 0));
414 * convert tab to space
416 static void tab2space(char *text)
426 static void print_msg(const char *msg)
428 SFont_FontInfo *font = &(fonts[MSG_FONT].fontinfo);
429 char *buf = strdup(msg);
430 int len = strlen(buf);
434 while (TextWidth2(font, buf) > INPUT_WIDTH && len > 0) {
439 PutString2(screen, font, INPUT_X, INPUT_Y, buf);
443 static void update_all(void)
445 SDL_UpdateRect(screen, 0, 0, 0, 0);
448 static void update_input(void)
450 SDL_UpdateRect(screen, INPUT_X, INPUT_Y, INPUT_WIDTH, INPUT_HEIGHT);
455 * wait for key, ignore all other events, return 0 if there is no key event
456 * pending. Otherwise return keysym of key
462 while (SDL_PollEvent(&event) > 0) {
463 if(event.type != SDL_KEYDOWN)
465 // printf("Key pressed, scancode: 0x%x\n",
466 // event.key.keysym.scancode);
467 return event.key.keysym.sym;
473 * print message, wait for key (blocking), return 1 for 'q', 0 else
475 static SDLKey hit_key(const char *msg)
481 while (!(sym = get_key()))
492 * read paraslash command from input, execute it and print results
494 static int command_handler(void)
498 char text[MAXLINE]="";
499 char buf[MAXLINE]="";
500 SFont_FontInfo *font = &fonts[OUTPUT_FONT].fontinfo;
502 // printf("string input\n");
503 SFont_Input2(screen, &fonts[INPUT_FONT].fontinfo,
504 INPUT_X, INPUT_Y - 5, INPUT_WIDTH, text);
507 if (!strcmp(text, "exit") || !strcmp(text, "quit"))
509 if (text[0] == '!') {
512 f = popen(text + 1, "r");
514 sprintf(buf, BINDIR "/para_client %s 2>&1", text);
520 while(fgets(text, MAXLINE - 1, f)) {
525 // printf("string: %s\n", dest);
526 while (TextWidth2(font, text) > width - 2 * FRAME_WIDTH &&
531 PutString2(screen, font, OUTPUT_X,
532 OUTPUT_Y + count * FONT_HEIGHT, text);
534 if (count >= NUM_LINES) {
536 if (hit_key("Hit any key to continue, q to return"))
543 hit_key("Hit any key to return");
544 out: fill_output_rect();
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]
554 char *transform_string(int item)
556 struct stat_item s = stat_items[item];
559 unsigned pixels = s.w * (width - 2 * FRAME_WIDTH) / 100;
560 SFont_FontInfo *font = &(fonts[s.font].fontinfo);
562 ret = make_message("%s%s%s", s.prefix, s.content, s.postfix);
564 while (TextWidth2(font, ret) > pixels && len > 0) {
571 SDL_Surface *load_jpg(void)
574 int fds[3] = {0, 1, 0};
578 if (para_exec_cmdline_pid(&pid, args_info.pic_cmd_arg, fds) < 0)
580 f = fdopen(fds[1], "r");
583 if (!(rwop = SDL_RWFromFP(f, 0)))
585 return IMG_LoadJPG_RW(rwop);
588 void update_pic(void)
591 SDL_Rect src_pic_rect = {
597 SDL_Rect dest_pic_rect = {
599 .y = OUTPUT_HEIGHT / 5,
607 if (!(img = load_jpg()))
609 SDL_FillRect(screen, &dest_pic_rect, SDL_MapRGB(screen->format,
611 SDL_BlitSurface(img, &src_pic_rect, screen, &dest_pic_rect);
613 SDL_FreeSurface(img);
617 * update status item number i.
619 static void do_update(int i)
621 static int last_played = -1;
624 SFont_FontInfo *font = &(fonts[stat_items[i].font].fontinfo);
625 if (!stat_items[i].w)
628 rect.x = stat_items[i].x * (width - FRAME_WIDTH * 2) / 100
630 rect.y = stat_items[i].y * (height - 2 * FRAME_WIDTH - INPUT_HEIGHT)
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) {
639 PutString2(screen, font,
640 rect.x + (rect.w - TextWidth2(font, buf)) / 2,
644 PutString2(screen, font, rect.x, rect.y, buf);
647 PutString2(screen, font, rect.x + (rect.w -
648 TextWidth2(font, buf)), rect.y, 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) {
655 last_played = atoi(stat_items[i].content);
660 * Check if buf is a known status line. If so call do_update and return 1.
661 * Return 0 otherwise.
663 int update_status(char *buf, __a_unused void *data)
667 i = stat_line_valid(buf);
670 //free(stat_items[i].content);
671 stat_items[i].content = para_strdup(buf +
672 strlen(status_item_list[i]) + 1);
678 * Read stat line from pipe if pipe is ready, call update_status to
679 * display information.
681 static int draw_status(int fd)
688 tv.tv_usec = 3000000;
691 ret = para_select(fd + 1, &rfds, NULL, &tv);
694 if (read_audiod_pipe(fd, update_status) > 0)
696 free(stat_items[SI_STATUS_BAR].content);
697 stat_items[SI_STATUS_BAR].content =
698 para_strdup("audiod not running!?\n");
704 static void clean_exit(int ret)
710 static void print_help(void)
712 print_msg("Hit q to quit, any other key to enter command mode");
715 static int configfile_exists(void)
717 if (!args_info.config_file_given) {
718 char *home = para_homedir();
719 args_info.config_file_arg = make_message(
720 "%s/.paraslash/sdl_gui.conf", home);
723 return file_exists(args_info.config_file_arg);
729 int main(int argc, char *argv[])
734 sdl_gui_cmdline_parser(argc, argv, &args_info);
735 HANDLE_VERSION_FLAG("sdl_gui", args_info);
736 ret = configfile_exists();
737 // printf("w=%i,h=%i,ret=%i, cf=%s\n", width, height, ret, args_info.config_file_arg);
739 if (!ret && args_info.config_file_given) {
740 fprintf(stderr, "Can't read config file %s\n",
741 args_info.config_file_arg);
745 struct sdl_gui_cmdline_parser_params params = {
751 sdl_gui_cmdline_parser_config_file(args_info.config_file_arg,
752 &args_info, ¶ms);
754 signal(SIGCHLD, SIG_IGN);
755 width = args_info.width_arg;
756 height = args_info.height_arg;
757 // printf("w=%i,h=%i,ret=%i, cf=%s\n", width, height, ret, args_info.config_file_arg);
760 for (i = 0; fonts[i].name[0]; i++) {
762 sprintf(buf, "%s/%s", FONTDIR, fonts[i].name);
763 /* Load the font - You don't have to use the IMGlib for this */
764 fonts[i].fontinfo.Surface = IMG_Load(buf);
765 /* Prepare the font for use */
766 InitFont2(&fonts[i].fontinfo);
768 draw_frame(FRAME_RED, FRAME_GREEN, FRAME_BLUE);
769 if (args_info.interactive_flag) {
775 fd = para_open_audiod_pipe(args_info.stat_cmd_arg);
777 clean_exit(EXIT_FAILURE);
779 ret = draw_status(fd);
784 if (SDL_QuitRequested())
786 while ((sym = get_key())) {
787 if (!args_info.interactive_flag)
791 if ( sym == SDLK_LSHIFT
792 || sym == SDLK_RSHIFT
798 || sym == SDLK_CAPSLOCK
801 || sym == SDLK_RSUPER
802 || sym == SDLK_LSUPER
803 || sym == SDLK_COMPOSE
808 if (!command_handler())
813 SDL_UpdateRect(screen, 0, 0, 0, 0);