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
  33 #ifdef HAVE_LCD_BITMAP
  34
  35 #define MAXLINES  (LCD_HEIGHT/6)
  36 #define MAXBUFFER 512
  37 #define RECT_SPACING 2
  38 #define SPLASH_MEMORY_INTERVAL (HZ)
  39
  40 #else /* HAVE_LCD_CHARCELLS */
  41
  42 #define MAXLINES  2
  43 #define MAXBUFFER 64
  44 #define RECT_SPACING 0
  45
  46 #endif
  47
  48
  49 static void splash_internal(struct screen * screen, const char *fmt, va_list ap)
  50 {
  51     char splash_buf[MAXBUFFER];
  52     char *lines[MAXLINES];
  53
  54     char *next;
  55     char *lastbreak = NULL;
  56     char *store = NULL;
  57     int line = 0;
  58     int x = 0;
  59     int y, i;
  60     int space_w, w, h;
  61     struct viewport vp;
  62 #ifdef HAVE_LCD_BITMAP
  63     int width, height;
  64     int maxw = 0;
  65
  66     viewport_set_defaults(&vp, screen->screen_type);
  67     screen->set_viewport(&vp);
  68
  69     screen->getstringsize(" ", &space_w, &h);
  70 #else /* HAVE_LCD_CHARCELLS */
  71     vp.width = screen->lcdwidth;
  72     vp.height = screen->lcdheight;
  73
  74     space_w = h = 1;
  75     screen->double_height (false);
  76 #endif
  77     y = h;
  78
  79     vsnprintf(splash_buf, sizeof(splash_buf), fmt, ap);
  80     va_end(ap);
  81
  82     /* break splash string into display lines, doing proper word wrap */
  83
  84     next = strtok_r(splash_buf, " ", &store);
  85     if (!next)
  86         goto end; /* nothing to display */
  87
  88     lines[0] = next;
  89     while (true)
  90     {
  91 #ifdef HAVE_LCD_BITMAP
  92         screen->getstringsize(next, &w, NULL);
  93 #else
  94         w = utf8length(next);
  95 #endif
  96         if (lastbreak)
  97         {
  98             if (x + (next - lastbreak) * space_w + w
  99                     > vp.width - RECT_SPACING*2)
 100             {   /* too wide, wrap */
 101 #ifdef HAVE_LCD_BITMAP
 102                 if (x > maxw)
 103                     maxw = x;
 104 #endif
 105                 if ((y + h > vp.height) || (line >= (MAXLINES-1)))
 106                     break;  /* screen full or out of lines */
 107                 x = 0;
 108                 y += h;
 109                 lines[++line] = next;
 110             }
 111             else
 112             {
 113                 /*  restore & calculate spacing */
 114                 *lastbreak = ' ';
 115                 x += (next - lastbreak) * space_w;
 116             }
 117         }
 118         x += w;
 119         lastbreak = next + strlen(next);
 120         next = strtok_r(NULL, " ", &store);
 121         if (!next)
 122         {   /* no more words */
 123 #ifdef HAVE_LCD_BITMAP
 124             if (x > maxw)
 125                 maxw = x;
 126 #endif
 127             break;
 128         }
 129     }
 130
 131     /* prepare viewport
 132      * First boundaries, then the grey filling, then the black border and finally
 133      * the text*/
 134
 135     screen->stop_scroll();
 136
 137 #ifdef HAVE_LCD_BITMAP
 138
 139     vp.y = (vp.height - vp.y - y) / 2 - RECT_SPACING;  /* height => y start position */
 140     vp.x += (vp.width - maxw) / 2 - RECT_SPACING;
 141     width = maxw + 2*RECT_SPACING;
 142     height = y + 2*RECT_SPACING;
 143
 144     if (vp.y < 0)
 145         vp.y = 0;
 146     if (vp.x < 0)
 147         vp.x = 0;
 148     if (width > vp.width)
 149         width = vp.width;
 150     if (height > vp.height)
 151         height = vp.height;
 152     vp.width = width;
 153     vp.height = height;
 154
 155     vp.flags |=  VP_FLAG_ALIGN_CENTER;
 156 #if LCD_DEPTH > 1
 157     if (screen->depth > 1)
 158     {
 159         vp.drawmode = DRMODE_FG;
 160         /* can't do vp.fg_pattern here, since set_foreground does a bit more on
 161          * greyscale */
 162         screen->set_foreground(SCREEN_COLOR_TO_NATIVE(screen, LCD_LIGHTGRAY));
 163     }
 164     else
 165 #endif
 166         vp.drawmode = (DRMODE_SOLID|DRMODE_INVERSEVID);
 167
 168     screen->fillrect(0, 0, vp.width, vp.height);
 169
 170 #if LCD_DEPTH > 1
 171     if (screen->depth > 1)
 172         /* can't do vp.fg_pattern here, since set_foreground does a bit more on
 173          * greyscale */
 174         screen->set_foreground(SCREEN_COLOR_TO_NATIVE(screen, LCD_BLACK));
 175     else
 176 #endif
 177         vp.drawmode = DRMODE_SOLID;
 178
 179     screen->drawrect(0, 0, vp.width, vp.height);
 180
 181     /* prepare putting the text */
 182     y = RECT_SPACING;
 183 #else /* HAVE_LCD_CHARCELLS */
 184     y = 0;    /* vertical centering on 2 lines would be silly */
 185     screen->clear_display();
 186 #endif
 187
 188     /* print the message to screen */
 189     for (i = 0; i <= line; i++, y+=h)
 190     {
 191 #ifdef HAVE_LCD_BITMAP
 192         screen->putsxy(0, y, lines[i]);
 193 #else
 194         screen->puts(0, y, lines[i]);
 195 #endif
 196     }
 197     screen->update_viewport();
 198 end:
 199     screen->set_viewport(NULL);
 200 }
 201
 202 void splashf(int ticks, const char *fmt, ...)
 203 {
 204     va_list ap;
 205     int i;
 206
 207     /* If fmt is a lang ID then get the corresponding string (which
 208        still might contain % place holders). */
 209     fmt = P2STR((unsigned char *)fmt);
 210     FOR_NB_SCREENS(i)
 211     {
 212         va_start(ap, fmt);
 213         splash_internal(&(screens[i]), fmt, ap);
 214         va_end(ap);
 215     }
 216     if (ticks)
 217         sleep(ticks);
 218 }
 219
 220 void splash(int ticks, const char *str)
 221 {
 222 #if !defined(SIMULATOR) || CONFIG_CODEC == SWCODEC
 223     long id;
 224     /* fmt may be a so called virtual pointer. See settings.h. */
 225     if((id = P2ID((const unsigned char*)str)) >= 0)
 226         /* If fmt specifies a voicefont ID, and voice menus are
 227            enabled, then speak it. */
 228         cond_talk_ids_fq(id);
 229 #endif
 230     splashf(ticks, "%s", P2STR((const unsigned char*)str));
 231 }