wmix/ui_x.c

   1 /* WMix 3.0 -- a mixer using the OSS mixer API.
   2  * Copyright (C) 2000, 2001
   3  *      Daniel Richard G. <skunk@mit.edu>,
   4  *      timecop <timecop@japan.co.jp>
   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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19  */
  20
  21 #ifdef HAVE_CONFIG_H
  22 #include "config.h"
  23 #endif
  24
  25 #include <stdio.h>
  26 #include <stdlib.h>
  27 #include <string.h>
  28 #include <ctype.h>
  29 #include <math.h>
  30
  31 #include <X11/X.h>
  32 #include <X11/Xlib.h>
  33 #include <X11/Xutil.h>
  34 #include <X11/Xatom.h>
  35 #include <X11/extensions/shape.h>
  36 #include <X11/xpm.h>
  37 #include <X11/cursorfont.h>
  38
  39 #include "include/master.xpm"
  40 #include "include/led-on.xpm"
  41 #include "include/led-off.xpm"
  42
  43 #include "include/common.h"
  44 #include "include/misc.h"
  45 #include "include/mixer.h"
  46 #include "include/ui_x.h"
  47 #include "include/config.h"
  48
  49
  50 #ifndef PI
  51 #define PI M_PI
  52 #endif
  53
  54 #define LED_POS_RADIUS 8
  55 #define KNOB_CENTER_X 49
  56 #define KNOB_CENTER_Y 48
  57 #define LED_WIDTH 6
  58 #define LED_HEIGHT 6
  59
  60 typedef struct _Dockapp Dockapp;
  61
  62 struct _Dockapp {
  63     int width;
  64     int height;
  65     Pixmap pixmap;
  66     Pixmap mask;
  67     GC gc;
  68     int ctlength;
  69
  70     Window osd;
  71     GC osd_gc;
  72     int osd_width;
  73     bool osd_mapped;
  74
  75 };
  76
  77 static Pixmap led_on_pixmap;
  78 static Pixmap led_on_mask;
  79 static Pixmap led_off_pixmap;
  80 static Pixmap led_off_mask;
  81
  82 #define copy_xpm_area(x, y, w, h, dx, dy) \
  83     XCopyArea(display, dockapp.pixmap, dockapp.pixmap, dockapp.gc, \
  84             x, y, w, h, dx, dy)
  85
  86 /* local prototypes */
  87 static Cursor create_null_cursor(Display *x_display);
  88
  89 /* ui stuff */
  90 static void draw_stereo_led(void);
  91 static void draw_rec_led(void);
  92 static void draw_mute_led(void);
  93 static void draw_percent(void);
  94 static void draw_knob(float volume);
  95 static void draw_slider(float offset);
  96
  97 /* global variables */
  98 static Dockapp dockapp;
  99 static Display *display;
 100 static Window win;
 101 static Window iconwin;
 102 static Cursor hand_cursor;
 103 static Cursor null_cursor;
 104 static Cursor norm_cursor;
 105 static Cursor bar_cursor;
 106
 107 /* public methods */
 108 void dockapp_init(Display *x_display)
 109 {
 110     display = x_display;
 111 }
 112
 113 void redraw_window(void)
 114 {
 115     XCopyArea(display, dockapp.pixmap, iconwin, dockapp.gc,
 116               0, 0, dockapp.width, dockapp.height, 0, 0);
 117     XCopyArea(display, dockapp.pixmap, win, dockapp.gc,
 118               0, 0, dockapp.width, dockapp.height, 0, 0);
 119 }
 120
 121 void ui_update(void)
 122 {
 123     draw_stereo_led();
 124     draw_rec_led();
 125     draw_mute_led();
 126     draw_knob(mixer_get_volume());
 127     draw_slider(mixer_get_balance());
 128     redraw_window();
 129 }
 130
 131 void knob_turn(float delta)
 132 {
 133     mixer_set_volume_rel(delta);
 134     draw_knob(mixer_get_volume());
 135     redraw_window();
 136 }
 137
 138 void slider_move(float delta)
 139 {
 140     mixer_set_balance_rel(delta);
 141     draw_slider(mixer_get_balance());
 142     redraw_window();
 143 }
 144
 145 int blit_string(const char *text)
 146 {
 147     register int i;
 148     register int c;
 149     register int k;
 150
 151     k = 0;
 152     copy_xpm_area(0, 87, 256, 9, 0, 96);
 153
 154     for (i = 0; text[i] || i > 31; i++) {
 155         c = toupper(text[i]);
 156         if (c == '-') {
 157             copy_xpm_area(60, 67, 6, 8, k, 96);
 158             k += 6;
 159         }
 160         if (c == ' ') {
 161             copy_xpm_area(66, 67, 6, 8, k, 96);
 162             k += 6;
 163         }
 164         if (c == '.') {
 165             copy_xpm_area(72, 67, 6, 8, k, 96);
 166             k += 6;
 167         }
 168         if (c >= 'A' && c <= 'Z') {     /* letter */
 169             c = c - 'A';
 170             copy_xpm_area(c * 6, 77, 6, 8, k, 96);
 171             k += 6;
 172         } else if (c >= '0' && c <= '9') {      /* number */
 173             c = c - '0';
 174             copy_xpm_area(c * 6, 67, 6, 8, k, 96);
 175             k += 6;
 176         }
 177     }
 178     dockapp.ctlength = k;
 179     return k;
 180 }
 181
 182 void scroll_text(int x, int y, int width, bool reset)
 183 {
 184     static int pos;
 185     static int first;
 186     static int stop;
 187
 188     /* no text scrolling at all */
 189     if (!config.scrolltext) {
 190         if (!reset)
 191             return;
 192         copy_xpm_area(0, 96, 58, 9, x, y);
 193         redraw_window();
 194         return;
 195     }
 196
 197     if (reset) {
 198         pos = 0;
 199         first = 0;
 200         stop = 0;
 201         copy_xpm_area(0, 87, width, 9, x, y);
 202     }
 203
 204     if (stop) {
 205         return;
 206     }
 207
 208     if ((first == 0) && pos == 0) {
 209         pos = width;
 210         first = 1;
 211     }
 212
 213     if (pos < -(dockapp.ctlength)) {
 214         first = 1;
 215         pos = width;
 216         stop = 1;
 217         return;
 218     }
 219     pos -= 2;
 220
 221     if (pos > 0) {
 222         copy_xpm_area(0, 87, pos, 9, x, y);     /* clear */
 223         copy_xpm_area(0, 96, width - pos, 9, x + pos, y);
 224     } else {                    /* don't need to clear, already in text */
 225         copy_xpm_area(abs(pos), 96, width, 9, x, y);
 226     }
 227     redraw_window();
 228     return;
 229 }
 230
 231 void new_window(char *name, int width, int height)
 232 {
 233     XpmAttributes attr;
 234     Pixel fg, bg;
 235     XGCValues gcval;
 236     XSizeHints sizehints;
 237     XClassHint classhint;
 238     XWMHints wmhints;
 239     XTextProperty wname;
 240
 241     dockapp.width = width;
 242     dockapp.height = height;
 243
 244     sizehints.flags = USSize | USPosition;
 245     sizehints.x = 0;
 246     sizehints.y = 0;
 247     sizehints.width = width;
 248     sizehints.height = height;
 249
 250     fg = BlackPixel(display, DefaultScreen(display));
 251     bg = WhitePixel(display, DefaultScreen(display));
 252
 253     win = XCreateSimpleWindow(display, DefaultRootWindow(display),
 254                               sizehints.x, sizehints.y,
 255                               sizehints.width, sizehints.height, 1, fg,
 256                               bg);
 257
 258     iconwin = XCreateSimpleWindow(display, win, sizehints.x, sizehints.y,
 259                                   sizehints.width, sizehints.height, 1, fg,
 260                                   bg);
 261
 262     XSetWMNormalHints(display, win, &sizehints);
 263     classhint.res_name = name;
 264     classhint.res_class = name;
 265     XSetClassHint(display, win, &classhint);
 266
 267 #define INPUT_MASK \
 268     ButtonPressMask \
 269     | ExposureMask \
 270     | ButtonReleaseMask \
 271     | PointerMotionMask \
 272     | LeaveWindowMask \
 273     | StructureNotifyMask
 274
 275     XSelectInput(display, win, INPUT_MASK);
 276     XSelectInput(display, iconwin, INPUT_MASK);
 277
 278 #undef INPUT_MASk
 279
 280     XStringListToTextProperty(&name, 1, &wname);
 281     XSetWMName(display, win, &wname);
 282
 283     gcval.foreground = fg;
 284     gcval.background = bg;
 285     gcval.graphics_exposures = 0;
 286
 287     dockapp.gc =
 288         XCreateGC(display, win,
 289                   GCForeground | GCBackground | GCGraphicsExposures,
 290                   &gcval);
 291
 292     attr.exactColors = 0;
 293     attr.alloc_close_colors = 1;
 294     attr.closeness = 30000;
 295     attr.valuemask = (XpmExactColors | XpmAllocCloseColors | XpmCloseness);
 296     if ((XpmCreatePixmapFromData(display, DefaultRootWindow(display),
 297                                 master_xpm, &dockapp.pixmap, &dockapp.mask,
 298                                 &attr) != XpmSuccess) ||
 299             (XpmCreatePixmapFromData(display, DefaultRootWindow(display),
 300                                 led_on_xpm, &led_on_pixmap, &led_on_mask,
 301                                 &attr) != XpmSuccess) ||
 302             (XpmCreatePixmapFromData(display, DefaultRootWindow(display),
 303                                 led_off_xpm, &led_off_pixmap, &led_off_mask,
 304                                 &attr) != XpmSuccess)) {
 305         fputs("Cannot allocate colors for the dockapp pixmaps!\n", stderr);
 306         exit(EXIT_FAILURE);
 307     }
 308
 309     XShapeCombineMask(display, win, ShapeBounding, 0, 0, dockapp.mask,
 310                       ShapeSet);
 311     XShapeCombineMask(display, iconwin, ShapeBounding, 0, 0, dockapp.mask,
 312                       ShapeSet);
 313
 314     wmhints.initial_state = WithdrawnState;
 315     wmhints.icon_window = iconwin;
 316     wmhints.icon_x = sizehints.x;
 317     wmhints.icon_y = sizehints.y;
 318     wmhints.window_group = win;
 319     wmhints.flags =
 320         StateHint | IconWindowHint | IconPositionHint | WindowGroupHint;
 321     XSetWMHints(display, win, &wmhints);
 322
 323     hand_cursor = XCreateFontCursor(display, XC_hand2);
 324     norm_cursor = XCreateFontCursor(display, XC_left_ptr);
 325     bar_cursor = XCreateFontCursor(display, XC_sb_up_arrow);
 326     null_cursor = create_null_cursor(display);
 327
 328     XMapWindow(display, win);
 329 }
 330
 331 void new_osd(int width, int height)
 332 {
 333     Window osd;
 334     Pixel fg, bg;
 335     XGCValues gcval;
 336     GC gc;
 337     XSizeHints sizehints;
 338     XSetWindowAttributes xattributes;
 339     int win_layer = 6;
 340     XFontStruct *fs = NULL;
 341
 342     sizehints.flags = USSize | USPosition;
 343     sizehints.x = (DisplayWidth(display, 0) - width) / 2;
 344     sizehints.y = (DisplayHeight(display, 0) - 120);
 345     sizehints.width = width;
 346     sizehints.height = height;
 347     xattributes.save_under = True;
 348     xattributes.override_redirect = True;
 349     xattributes.cursor = None;
 350
 351
 352     fg = WhitePixel(display, DefaultScreen(display));
 353     bg = BlackPixel(display, DefaultScreen(display));
 354
 355     osd = XCreateSimpleWindow(display, DefaultRootWindow(display),
 356                               sizehints.x, sizehints.y, width, height,
 357                               0, fg, bg);
 358
 359     XSetWMNormalHints(display, osd, &sizehints);
 360     XChangeWindowAttributes(display, osd, CWSaveUnder | CWOverrideRedirect,
 361                             &xattributes);
 362     XStoreName(display, osd, "osd");
 363     XSelectInput(display, osd, ExposureMask);
 364
 365     XChangeProperty(display, osd, XInternAtom(display, "_WIN_LAYER", False),
 366             XA_CARDINAL, 32, PropModeReplace, (unsigned char *)&win_layer, 1);
 367
 368     gcval.foreground = get_color(display, config.osd_color);
 369     gcval.background = bg;
 370     gcval.graphics_exposures = 0;
 371
 372     /*
 373      * -sony-fixed-medium-r-normal--24-170-100-100-c-120-iso8859-1
 374      * -misc-fixed-medium-r-normal--36-*-75-75-c-*-iso8859-* */
 375
 376     /* try our cool scaled 36pt fixed font */
 377     fs = XLoadQueryFont(display,
 378             "-misc-fixed-medium-r-normal--36-*-75-75-c-*-iso8859-*");
 379
 380     if (fs == NULL) {
 381         /* they don't have it! */
 382         /* try our next preferred font (100dpi sony) */
 383         fprintf(stderr, "Trying alternate font\n");
 384         fs = XLoadQueryFont(display,
 385                 "-sony-fixed-medium-r-normal--24-*-100-100-c-*-iso8859-*");
 386
 387         /* they don't have the sony font either */
 388         if (fs == NULL) {
 389             fprintf(stderr, "Trying \"fixed\" font\n");
 390             fs = XLoadQueryFont(display,
 391                     "fixed");
 392             /* if they don't have the fixed font, we've got different kind
 393              * of problems */
 394             if (fs == NULL) {
 395                 fprintf(stderr, "Your X server is probably broken\n");
 396                 exit(1);
 397             }
 398         }
 399     }
 400
 401     gc =
 402         XCreateGC(display, osd,
 403                   GCForeground | GCBackground | GCGraphicsExposures,
 404                   &gcval);
 405     XSetFont(display, gc, fs->fid);
 406
 407     dockapp.osd = osd;
 408     dockapp.osd_gc = gc;
 409     dockapp.osd_width = width;
 410     dockapp.osd_mapped = false;
 411 }
 412
 413 void update_osd(float volume, bool up)
 414 {
 415     int i;
 416     int foo;
 417     static int bar;
 418
 419     if (config.osd) {
 420         foo =
 421             (((dockapp.osd_width / 100) * (volume * 100)) / 20) + 1;
 422
 423         if ((foo != bar) || up) {
 424             XClearArea(display, dockapp.osd, ((bar - 1) * 20), 30,
 425                        (foo * 20), 25, 1);
 426             for (i = 1; i < foo; i++)
 427                 XFillRectangle(display, dockapp.osd, dockapp.osd_gc,
 428                                i * 20, 30, 5, 25);
 429         }
 430         bar = foo;
 431     }
 432 }
 433
 434 void unmap_osd(void)
 435 {
 436     if (config.osd) {
 437         XUnmapWindow(display, dockapp.osd);
 438         XFlush(display);
 439         dockapp.osd_mapped = false;
 440     }
 441 }
 442
 443 void map_osd(void)
 444 {
 445     if (config.osd) {
 446         XMapRaised(display, dockapp.osd);
 447         XDrawString(display, dockapp.osd, dockapp.osd_gc, 1, 25,
 448                 mixer_get_channel_name(), strlen(mixer_get_channel_name()));
 449         update_osd(mixer_get_volume(), true);
 450         XFlush(display);
 451         dockapp.osd_mapped = true;
 452     }
 453 }
 454
 455 bool osd_mapped(void)
 456 {
 457     return dockapp.osd_mapped;
 458 }
 459
 460 void set_cursor(int type)
 461 {
 462     static int oldtype;
 463
 464     if (oldtype == type)
 465         return;
 466
 467     switch (type) {
 468         case NULL_CURSOR:
 469             XDefineCursor(display, win, null_cursor);
 470             XDefineCursor(display, iconwin, null_cursor);
 471             break;
 472         case NORMAL_CURSOR:
 473             XDefineCursor(display, win, norm_cursor);
 474             XDefineCursor(display, iconwin, norm_cursor);
 475             break;
 476         case HAND_CURSOR:
 477             XDefineCursor(display, win, hand_cursor);
 478             XDefineCursor(display, iconwin, hand_cursor);
 479             break;
 480         case BAR_CURSOR:
 481             XDefineCursor(display, win, bar_cursor);
 482             XDefineCursor(display, iconwin, bar_cursor);
 483             break;
 484     }
 485     oldtype = type;
 486 }
 487
 488 /* private */
 489 static void draw_stereo_led(void)
 490 {
 491     if (mixer_is_stereo())      /* stereo capable */
 492         copy_xpm_area(78, 0, 9, 7, 28, 14);     /* light up LCD */
 493     else                        /* mono channel */
 494         copy_xpm_area(78, 7, 9, 7, 28, 14);     /* turn off LCD */
 495 }
 496
 497 static void draw_rec_led(void)
 498 {
 499     if (mixer_is_rec())         /* record enabled */
 500         copy_xpm_area(65, 0, 13, 7, 4, 14);     /* Light up LCD */
 501     else                        /* record disabled */
 502         copy_xpm_area(65, 7, 13, 7, 4, 14);     /* turn off LCD */
 503 }
 504
 505 static void draw_mute_led(void)
 506 {
 507     if (mixer_is_muted())       /* mute */
 508         copy_xpm_area(65, 14, 20, 7, 39, 14);   /* light up LCD */
 509     else                        /* unmute */
 510         copy_xpm_area(65, 21, 20, 7, 39, 14);   /* turn off LCD */
 511 }
 512
 513 static void draw_percent(void)
 514 {
 515     int volume = (int)(mixer_get_volume() * 100);
 516
 517     copy_xpm_area(0, 87, 18, 9, 41, 22);        /* clear percentage */
 518
 519     if (volume < 100) {
 520         if (volume >= 10)
 521             copy_xpm_area((volume / 10) * 6, 67, 6, 9, 47, 22);
 522         copy_xpm_area((volume % 10) * 6, 67, 6, 9, 53, 22);
 523     } else {
 524         copy_xpm_area(6, 67, 6, 9, 41, 22);
 525         copy_xpm_area(0, 67, 6, 9, 47, 22);
 526         copy_xpm_area(0, 67, 6, 9, 53, 22);
 527     }
 528 }
 529
 530 static void draw_knob(float volume)
 531 {
 532     float bearing, led_x, led_y;
 533     int led_topleft_x, led_topleft_y;
 534     Pixmap led_pixmap;
 535
 536     bearing = (1.25 * PI) - (1.5 * PI) * volume;
 537
 538     led_x = KNOB_CENTER_X + LED_POS_RADIUS * cos(bearing);
 539     led_y = KNOB_CENTER_Y - LED_POS_RADIUS * sin(bearing);
 540
 541     led_topleft_x = (int)(led_x - (LED_WIDTH / 2.0) + 0.5);
 542     led_topleft_y = (int)(led_y - (LED_HEIGHT / 2.0) + 0.5);
 543
 544     /* clear previous knob picture */
 545     copy_xpm_area(87, 0, 26, 26, 36, 35);
 546
 547     if (mixer_is_muted())
 548         led_pixmap = led_off_pixmap;
 549     else
 550         led_pixmap = led_on_pixmap;
 551
 552     XCopyArea(display, led_pixmap, dockapp.pixmap, dockapp.gc,
 553             0, 0, LED_WIDTH, LED_HEIGHT, led_topleft_x, led_topleft_y);
 554     draw_percent();
 555 }
 556
 557 static void draw_slider(float offset)
 558 {
 559     int x = (offset * 50) / 5;
 560
 561     copy_xpm_area(65, 45, 27, 20, 4, 40);       /* repair region. move */
 562     copy_xpm_area(65, 29, 7, 15, 14 + x, 43);   /* slider */
 563 }
 564
 565 static Cursor create_null_cursor(Display *x_display)
 566 {
 567     Pixmap cursor_mask;
 568     XGCValues gcval;
 569     GC gc;
 570     XColor dummy_color;
 571     Cursor cursor;
 572
 573     cursor_mask = XCreatePixmap(x_display, DefaultRootWindow(x_display), 1, 1, 1);
 574     gcval.function = GXclear;
 575     gc = XCreateGC(x_display, cursor_mask, GCFunction, &gcval);
 576     XFillRectangle(x_display, cursor_mask, gc, 0, 0, 1, 1);
 577     dummy_color.pixel = 0;
 578     dummy_color.red = 0;
 579     dummy_color.flags = 04;
 580     cursor = XCreatePixmapCursor(x_display, cursor_mask, cursor_mask,
 581                 &dummy_color, &dummy_color, 0, 0);
 582     XFreePixmap(x_display, cursor_mask);
 583     XFreeGC(x_display, gc);
 584
 585     return cursor;
 586 }
 587
 588 unsigned long get_color(Display *display, char *color_name)
 589 {
 590     XColor color;
 591     XWindowAttributes winattr;
 592     Status status;
 593
 594     XGetWindowAttributes(display,
 595             RootWindow(display, DefaultScreen(display)), &winattr);
 596
 597     status = XParseColor(display, winattr.colormap, color_name, &color);
 598     if (status == 0) {
 599         fprintf(stderr, "wmix:warning: Could not get color \"%s\" for OSD, falling back to default\n", color_name);
 600
 601         if (color_name != default_osd_color)
 602                 status = XParseColor(display, winattr.colormap, default_osd_color, &color);
 603         if (status == 0)
 604                 return WhitePixel(display, DefaultScreen(display));
 605     }
 606
 607     color.flags = DoRed | DoGreen | DoBlue;
 608     XAllocColor(display, winattr.colormap, &color);
 609
 610     return color.pixel;
 611 }