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     width = maxw + 2*RECT_SPACING;
 141     height = y + 2*RECT_SPACING;
 142
 143     if (width > vp.width)
 144         width = vp.width;
 145     if (height > vp.height)
 146         height = vp.height;
 147
 148     vp.x += (vp.width - width) / 2;
 149     vp.y += (vp.height - height) / 2;
 150     vp.width = width;
 151     vp.height = height;
 152
 153     vp.flags |=  VP_FLAG_ALIGN_CENTER;
 154 #if LCD_DEPTH > 1
 155     if (screen->depth > 1)
 156     {
 157         vp.drawmode = DRMODE_FG;
 158         /* can't do vp.fg_pattern here, since set_foreground does a bit more on
 159          * greyscale */
 160         screen->set_foreground(SCREEN_COLOR_TO_NATIVE(screen, LCD_LIGHTGRAY));
 161     }
 162     else
 163 #endif
 164         vp.drawmode = (DRMODE_SOLID|DRMODE_INVERSEVID);
 165
 166     screen->fill_viewport();
 167
 168 #if LCD_DEPTH > 1
 169     if (screen->depth > 1)
 170         /* can't do vp.fg_pattern here, since set_foreground does a bit more on
 171          * greyscale */
 172         screen->set_foreground(SCREEN_COLOR_TO_NATIVE(screen, LCD_BLACK));
 173     else
 174 #endif
 175         vp.drawmode = DRMODE_SOLID;
 176
 177     screen->draw_border_viewport();
 178
 179     /* prepare putting the text */
 180     y = RECT_SPACING;
 181 #else /* HAVE_LCD_CHARCELLS */
 182     y = 0;    /* vertical centering on 2 lines would be silly */
 183     screen->clear_display();
 184 #endif
 185
 186     /* print the message to screen */
 187     for (i = 0; i <= line; i++, y+=h)
 188     {
 189 #ifdef HAVE_LCD_BITMAP
 190         screen->putsxy(0, y, lines[i]);
 191 #else
 192         screen->puts(0, y, lines[i]);
 193 #endif
 194     }
 195     screen->update_viewport();
 196 end:
 197     screen->set_viewport(NULL);
 198 }
 199
 200 void splashf(int ticks, const char *fmt, ...)
 201 {
 202     va_list ap;
 203     int i;
 204
 205     /* If fmt is a lang ID then get the corresponding string (which
 206        still might contain % place holders). */
 207     fmt = P2STR((unsigned char *)fmt);
 208     FOR_NB_SCREENS(i)
 209     {
 210         va_start(ap, fmt);
 211         splash_internal(&(screens[i]), fmt, ap);
 212         va_end(ap);
 213     }
 214     if (ticks)
 215         sleep(ticks);
 216 }
 217
 218 void splash(int ticks, const char *str)
 219 {
 220 #if !defined(SIMULATOR) || CONFIG_CODEC == SWCODEC
 221     long id;
 222     /* fmt may be a so called virtual pointer. See settings.h. */
 223     if((id = P2ID((const unsigned char*)str)) >= 0)
 224         /* If fmt specifies a voicefont ID, and voice menus are
 225            enabled, then speak it. */
 226         cond_talk_ids_fq(id);
 227 #endif
 228     splashf(ticks, "%s", P2STR((const unsigned char*)str));
 229 }