apps/gui/splash.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) Daniel Stenberg (2002)
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21 #include "stdarg.h"
  22 #include "string.h"
  23 #include "rbunicode.h"
  24 #include "stdio.h"
  25 #include "kernel.h"
  26 #include "screen_access.h"
  27 #include "lang.h"
  28 #include "settings.h"
  29 #include "talk.h"
  30 #include "splash.h"
  31 #include "viewport.h"
  32 #include "strtok_r.h"
  33
  34 #ifdef HAVE_LCD_BITMAP
  35
  36 #define MAXLINES  (LCD_HEIGHT/6)
  37 #define MAXBUFFER 512
  38 #define RECT_SPACING 2
  39 #define SPLASH_MEMORY_INTERVAL (HZ)
  40
  41 #else /* HAVE_LCD_CHARCELLS */
  42
  43 #define MAXLINES  2
  44 #define MAXBUFFER 64
  45 #define RECT_SPACING 0
  46
  47 #endif
  48
  49
  50 static void splash_internal(struct screen * screen, const char *fmt, va_list ap)
  51 {
  52     char splash_buf[MAXBUFFER];
  53     char *lines[MAXLINES];
  54
  55     char *next;
  56     char *lastbreak = NULL;
  57     char *store = NULL;
  58     int line = 0;
  59     int x = 0;
  60     int y, i;
  61     int space_w, w, h;
  62     struct viewport vp;
  63 #ifdef HAVE_LCD_BITMAP
  64     int width, height;
  65     int maxw = 0;
  66
  67     viewport_set_defaults(&vp, screen->screen_type);
  68     screen->set_viewport(&vp);
  69
  70     screen->getstringsize(" ", &space_w, &h);
  71 #else /* HAVE_LCD_CHARCELLS */
  72     vp.width = screen->lcdwidth;
  73     vp.height = screen->lcdheight;
  74
  75     space_w = h = 1;
  76     screen->double_height (false);
  77 #endif
  78     y = h;
  79
  80     vsnprintf(splash_buf, sizeof(splash_buf), fmt, ap);
  81     va_end(ap);
  82
  83     /* break splash string into display lines, doing proper word wrap */
  84
  85     next = strtok_r(splash_buf, " ", &store);
  86     if (!next)
  87         goto end; /* nothing to display */
  88
  89     lines[0] = next;
  90     while (true)
  91     {
  92 #ifdef HAVE_LCD_BITMAP
  93         screen->getstringsize(next, &w, NULL);
  94 #else
  95         w = utf8length(next);
  96 #endif
  97         if (lastbreak)
  98         {
  99             if (x + (next - lastbreak) * space_w + w
 100                     > vp.width - RECT_SPACING*2)
 101             {   /* too wide, wrap */
 102 #ifdef HAVE_LCD_BITMAP
 103                 if (x > maxw)
 104                     maxw = x;
 105 #endif
 106                 if ((y + h > vp.height) || (line >= (MAXLINES-1)))
 107                     break;  /* screen full or out of lines */
 108                 x = 0;
 109                 y += h;
 110                 lines[++line] = next;
 111             }
 112             else
 113             {
 114                 /*  restore & calculate spacing */
 115                 *lastbreak = ' ';
 116                 x += (next - lastbreak) * space_w;
 117             }
 118         }
 119         x += w;
 120         lastbreak = next + strlen(next);
 121         next = strtok_r(NULL, " ", &store);
 122         if (!next)
 123         {   /* no more words */
 124 #ifdef HAVE_LCD_BITMAP
 125             if (x > maxw)
 126                 maxw = x;
 127 #endif
 128             break;
 129         }
 130     }
 131
 132     /* prepare viewport
 133      * First boundaries, then the grey filling, then the black border and finally
 134      * the text*/
 135
 136     screen->stop_scroll();
 137
 138 #ifdef HAVE_LCD_BITMAP
 139
 140     vp.y = (vp.height - vp.y - y) / 2 - RECT_SPACING;  /* height => y start position */
 141     vp.x += (vp.width - maxw) / 2 - RECT_SPACING;
 142     width = maxw + 2*RECT_SPACING;
 143     height = y + 2*RECT_SPACING;
 144
 145     if (vp.y < 0)
 146         vp.y = 0;
 147     if (vp.x < 0)
 148         vp.x = 0;
 149     if (width > vp.width)
 150         width = vp.width;
 151     if (height > vp.height)
 152         height = vp.height;
 153     vp.width = width;
 154     vp.height = height;
 155
 156     vp.flags |=  VP_FLAG_ALIGN_CENTER;
 157 #if LCD_DEPTH > 1
 158     if (screen->depth > 1)
 159     {
 160         vp.drawmode = DRMODE_FG;
 161         /* can't do vp.fg_pattern here, since set_foreground does a bit more on
 162          * greyscale */
 163         screen->set_foreground(SCREEN_COLOR_TO_NATIVE(screen, LCD_LIGHTGRAY));
 164     }
 165     else
 166 #endif
 167         vp.drawmode = (DRMODE_SOLID|DRMODE_INVERSEVID);
 168
 169     screen->fillrect(0, 0, vp.width, vp.height);
 170
 171 #if LCD_DEPTH > 1
 172     if (screen->depth > 1)
 173         /* can't do vp.fg_pattern here, since set_foreground does a bit more on
 174          * greyscale */
 175         screen->set_foreground(SCREEN_COLOR_TO_NATIVE(screen, LCD_BLACK));
 176     else
 177 #endif
 178         vp.drawmode = DRMODE_SOLID;
 179
 180     screen->drawrect(0, 0, vp.width, vp.height);
 181
 182     /* prepare putting the text */
 183     y = RECT_SPACING;
 184 #else /* HAVE_LCD_CHARCELLS */
 185     y = 0;    /* vertical centering on 2 lines would be silly */
 186     screen->clear_display();
 187 #endif
 188
 189     /* print the message to screen */
 190     for (i = 0; i <= line; i++, y+=h)
 191     {
 192 #ifdef HAVE_LCD_BITMAP
 193         screen->putsxy(0, y, lines[i]);
 194 #else
 195         screen->puts(0, y, lines[i]);
 196 #endif
 197     }
 198     screen->update_viewport();
 199 end:
 200     screen->set_viewport(NULL);
 201 }
 202
 203 void splashf(int ticks, const char *fmt, ...)
 204 {
 205     va_list ap;
 206     int i;
 207
 208     /* If fmt is a lang ID then get the corresponding string (which
 209        still might contain % place holders). */
 210     fmt = P2STR((unsigned char *)fmt);
 211     FOR_NB_SCREENS(i)
 212     {
 213         va_start(ap, fmt);
 214         splash_internal(&(screens[i]), fmt, ap);
 215         va_end(ap);
 216     }
 217     if (ticks)
 218         sleep(ticks);
 219 }
 220
 221 void splash(int ticks, const char *str)
 222 {
 223 #if !defined(SIMULATOR) || CONFIG_CODEC == SWCODEC
 224     long id;
 225     /* fmt may be a so called virtual pointer. See settings.h. */
 226     if((id = P2ID((const unsigned char*)str)) >= 0)
 227         /* If fmt specifies a voicefont ID, and voice menus are
 228            enabled, then speak it. */
 229         cond_talk_ids_fq(id);
 230 #endif
 231     splashf(ticks, "%s", P2STR((const unsigned char*)str));
 232 }