bertos/gui/leveledit.c

   1 /**
   2  * \file
   3  * <!--
   4  * This file is part of BeRTOS.
   5  *
   6  * Bertos is free software; you can redistribute it and/or modify
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   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
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  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
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  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  *
  20  * As a special exception, you may use this file as part of a free software
  21  * library without restriction.  Specifically, if other files instantiate
  22  * templates or use macros or inline functions from this file, or you compile
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  24  * file does not by itself cause the resulting executable to be covered by
  25  * the GNU General Public License.  This exception does not however
  26  * invalidate any other reasons why the executable file might be covered by
  27  * the GNU General Public License.
  28  *
  29  * Copyright 2004, 2006 Develer S.r.l. (http://www.develer.com/)
  30  *
  31  * -->
  32  *
  33  * \brief Generic editor for (volume/gain/contrast/...) setting.
  34  *
  35  * \author Stefano Fedrigo <aleph@develer.com>
  36  */
  37
  38 #include "leveledit.h"
  39
  40 #include "cfg/cfg_menu.h"
  41 #include <cfg/macros.h> /* MAX() */
  42
  43 #include <drv/kbd.h>
  44 #include <drv/timer.h>
  45
  46 #include <gui/levelbar.h>
  47
  48 #include <cpu/pgm.h>
  49
  50 #include <gfx/text.h>
  51 #include <gfx/font.h>
  52
  53 #if CONFIG_MENU_MENUBAR
  54 #include <gui/menubar.h>
  55 #endif
  56
  57 #warning FIXME: Revise me!
  58
  59 #define LBAR_HEIGHT 16
  60
  61 /**
  62  * Allow user to change level.
  63  */
  64 void level_edit(struct LevelEdit *lev)
  65 {
  66 #if CONFIG_MENU_MENUBAR
  67         /* Labels for menubars */
  68         enum LabelId ch_labels[] = { LABEL_C1PLUS2, LABEL_CH_1, LABEL_CH_2 };
  69         const_iptr_t labels[] =
  70         {
  71                 (const_iptr_t)LABEL_BACK,
  72                 (const_iptr_t)LABEL_MINUS,
  73                 (const_iptr_t)LABEL_PLUS,
  74                 (const_iptr_t)LABEL_EMPTY
  75         };
  76         struct MenuBar mb;
  77 #endif /* CONFIG_MENU_MENUBAR */
  78
  79         struct LevelBar bar1, bar2;
  80         keymask_t keys, old_rpt_mask;
  81         int step, rep_step;
  82
  83         rep_step = MAX(lev->step, ((lev->max - lev->min) / 200));
  84         step = lev->step;
  85
  86         // Allow keys repetition.
  87         old_rpt_mask = kbd_setRepeatMask(K_UP | K_DOWN);
  88
  89         text_clear(lev->bitmap);
  90         //text_style(STYLEF_UNDERLINE, STYLEF_UNDERLINE);
  91         text_puts(lev->title, lev->bitmap);
  92         //text_style(0, STYLEF_UNDERLINE);
  93
  94         if (lev->type & LEVELEDIT_DOUBLE)
  95         {
  96                 int chn = 0;  /* edit both channels */
  97
  98                 /* Levelbars init */
  99                 lbar_init(&bar1, lev->bitmap, LBAR_HORIZONTAL,
 100                                 lev->min, lev->max, *lev->ch1_val, 0, 16, lev->bitmap->width / 2 - 1, 23);
 101                 lbar_init(&bar2, lev->bitmap, LBAR_HORIZONTAL,
 102                                 lev->min, lev->max, *lev->ch2_val, lev->bitmap->width / 2 + 1, 16, lev->bitmap->width, 23);
 103
 104                 #if CONFIG_MENU_MENUBAR
 105                         labels[3] = (const_iptr_t)ch_labels[chn];
 106                         mbar_init(&mb, lev->bitmap, labels, countof(labels));
 107                         mbar_draw(&mb);
 108                 #endif /* CONFIG_MENU_MENUBAR */
 109
 110                 /* Input loop for double level setting */
 111                 for (;;)
 112                 {
 113                         #if CONFIG_LEVELEDIT_TIMEOUT != 0
 114                                 ticks_t idle_timeout = timer_clock();
 115                         #endif
 116                         do
 117                         {
 118                                 if (lev->display_hook)
 119                                         lev->display_hook(lev);
 120                                 else
 121                                 {
 122                                         text_xprintf(lev->bitmap, 1, 0, TEXT_CENTER | TEXT_FILL, lev->unit);
 123                                         PGM_FUNC(text_xprintf)(lev->bitmap, 1, 3, 0, PGM_STR("%d"), *lev->ch1_val);
 124                                         PGM_FUNC(text_xprintf)(lev->bitmap, 1, 14, 0, PGM_STR("%d"), *lev->ch2_val);
 125
 126                                         lbar_setLevel(&bar1, *lev->ch1_val);
 127                                         lbar_setLevel(&bar2, *lev->ch2_val);
 128                                         lbar_draw(&bar1);
 129                                         lbar_draw(&bar2);
 130                                 }
 131
 132                                 #if CONFIG_LEVELEDIT_TIMEOUT != 0
 133                                         if (timer_clock() - idle_timeout > ms_to_ticks(CONFIG_LEVELEDIT_TIMEOUT))
 134                                         {
 135                                                 /* Accept input implicitly */
 136                                                 keys = K_OK;
 137                                                 break;
 138                                         }
 139                                 #endif
 140                         }
 141                         while (!(keys = kbd_peek()));
 142
 143                         if (keys & K_CANCEL)
 144                                 break;
 145
 146                         if (keys & K_OK)
 147                         {
 148                                 chn = (chn + 1) % 3;
 149
 150                                 #if CONFIG_MENU_MENUBAR
 151                                         labels[3] = (const_iptr_t)ch_labels[chn];
 152                                         mbar_draw(&mb);
 153                                 #endif /* CONFIG_MENU_MENUBAR */
 154                         }
 155
 156                         /* Increment step to achieve greater accelerations on larger values */
 157                         if (keys & K_REPEAT)
 158                                 step = MIN(rep_step, step + 1);
 159                         else
 160                                 step = lev->step;
 161
 162                         if (keys & (K_UP | K_DOWN))
 163                         {
 164                                 if (keys & K_UP)
 165                                 {
 166                                         /* If changing both channels (chn == 0), don't change
 167                                          * level if one of two is at min or max */
 168                                         if (chn != 0 ||
 169                                                         (*lev->ch1_val + step <= lev->max
 170                                                          && *lev->ch2_val + step <= lev->max))
 171                                         {
 172                                                 /* If chn == 0 change both channels */
 173                                                 if (chn != 2)
 174                                                 {
 175                                                         *lev->ch1_val += step;
 176                                                         if (*lev->ch1_val > lev->max)
 177                                                                 *lev->ch1_val = lev->max;
 178                                                 }
 179                                                 if (chn != 1)
 180                                                 {
 181                                                         *lev->ch2_val += step;
 182                                                         if (*lev->ch2_val > lev->max)
 183                                                                 *lev->ch2_val = lev->max;
 184                                                 }
 185                                         }
 186                                 }
 187                                 else
 188                                 {
 189                                         if (chn != 0 ||
 190                                                         (*lev->ch1_val - step >= lev->min
 191                                                          && *lev->ch2_val - step >= lev->min))
 192                                         {
 193                                                 if (chn != 2)
 194                                                 {
 195                                                         *lev->ch1_val -= step;
 196                                                         if (*lev->ch1_val < lev->min)
 197                                                                 *lev->ch1_val = lev->min;
 198                                                 }
 199                                                 if (chn != 1)
 200                                                 {
 201                                                         *lev->ch2_val -= step;
 202                                                         if (*lev->ch2_val < lev->min)
 203                                                                 *lev->ch2_val = lev->min;
 204                                                 }
 205                                         }
 206                                 }
 207
 208                                 if (lev->set_hook)
 209                                         lev->set_hook();
 210                         }
 211                 } // end for(;;)
 212         }
 213         else
 214         {
 215                 const PGM_ATTR char *fmt = lev->unit ? PGM_STR("%d %s") : PGM_STR("%d");
 216
 217 /*
 218                 const int textw = MAX(PGM_FUNC(text_widthf)(lev->bitmap, fmt, lev->max, lev->unit),
 219                                 PGM_FUNC(text_widthf)(lev->bitmap, fmt, lev->min, lev->unit));
 220
 221                 const coord_t barlen = lev->bitmap->width - 6 - textw;
 222 */
 223                 const coord_t barlen = lev->bitmap->width;
 224                 const coord_t barvtop = lev->bitmap->height / 2 - LBAR_HEIGHT/2 + lev->bitmap->font->height;
 225                 lbar_init(&bar1, lev->bitmap, LBAR_HORIZONTAL,
 226                           lev->min, lev->max, *lev->ch1_val,
 227                           0, barvtop, barlen,  barvtop + LBAR_HEIGHT);
 228
 229                 #if CONFIG_MENU_MENUBAR
 230                         mbar_init(&mb, lev->bitmap, labels, countof(labels));
 231                         mbar_draw(&mb);
 232                 #endif /* CONFIG_MENU_MENUBAR */
 233
 234                 /* Input loop for single level setting */
 235                 for (;;)
 236                 {
 237                         #if CONFIG_LEVELEDIT_TIMEOUT != 0
 238                                 ticks_t idle_timeout = timer_clock();
 239                         #endif
 240                         do
 241                         {
 242                                 if (lev->display_hook)
 243                                         lev->display_hook(lev);
 244                                 else
 245                                 {
 246                                         if (lev->type != LEVELEDIT_NOBAR)
 247                                         {
 248                                                 lbar_setLevel(&bar1, *lev->ch1_val);
 249                                                 lbar_draw(&bar1);
 250                                         }
 251                                         PGM_FUNC(text_xyprintf)(lev->bitmap, 0, bar1.y1 - lev->bitmap->font->height,
 252                                                 TEXT_CENTER | TEXT_FILL, fmt, *lev->ch1_val, lev->unit);
 253                                 }
 254
 255                                 #if CONFIG_LEVELEDIT_TIMEOUT != 0
 256                                         if (timer_clock() - idle_timeout > CONFIG_LEVELEDIT_TIMEOUT)
 257                                         {
 258                                                 /* Accept input implicitly */
 259                                                 keys = K_CANCEL;
 260                                                 break;
 261                                         }
 262                                 #endif
 263
 264                         }
 265                         while (!(keys = kbd_peek()));
 266
 267                         if (keys & K_CANCEL)
 268                                 break;
 269
 270                         /* Increment step to achieve greater accelerations on larger values */
 271                         if (keys & K_REPEAT)
 272                                 step = MIN(rep_step, step + 1);
 273                         else
 274                                 step = lev->step;
 275
 276                         if (keys & K_UP)
 277                         {
 278                                 *lev->ch1_val += step;
 279                                 if (*lev->ch1_val > lev->max)
 280                                         *lev->ch1_val = lev->max;
 281                         }
 282
 283                         if (keys & K_DOWN)
 284                         {
 285                                 *lev->ch1_val -= step;
 286                                 if (*lev->ch1_val < lev->min)
 287                                         *lev->ch1_val = lev->min;
 288                         }
 289
 290                         if (lev->set_hook)
 291                                 lev->set_hook();
 292                 }
 293         }
 294
 295         kbd_setRepeatMask(old_rpt_mask);
 296 }
 297
 298 /**
 299  * LevelEdit structure initialization.
 300  * Init data structure and init LevelEdit widgets.
 301  */
 302 void level_init(struct LevelEdit *lev,
 303                 int type,
 304                 struct Bitmap *bmp, const char *title, const char *unit,
 305                 int min, int max, int step,
 306                 int *ch1_val, int *ch2_val,
 307                 level_set_callback *set_hook, display_callback *display_hook)
 308 {
 309         lev->type   = type;
 310         lev->bitmap = bmp;
 311         lev->title  = title;
 312         lev->unit   = unit;
 313         lev->min    = min;
 314         lev->max    = max;
 315         lev->step   = step;
 316
 317         lev->ch1_val = ch1_val;
 318         lev->ch2_val = ch2_val;
 319         lev->set_hook     = set_hook;
 320         lev->display_hook = display_hook;
 321 }