apps/plugins/lib/display_text.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2009 Johannes Schwarz
  11  * based on Will Robertson code in superdom
  12  *
  13  * This program is free software; you can redistribute it and/or
  14  * modify it under the terms of the GNU General Public License
  15  * as published by the Free Software Foundation; either version 2
  16  * of the License, or (at your option) any later version.
  17  *
  18  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  19  * KIND, either express or implied.
  20  *
  21  ****************************************************************************/
  22 #include "plugin.h"
  23 #include "display_text.h"
  24
  25 #ifdef HAVE_LCD_CHARCELLS
  26 #define MARGIN 0
  27 #else
  28 #define MARGIN 5
  29 #endif
  30
  31 bool display_text(short words, char** text, struct style_text* style,
  32                   struct viewport* vp_text)
  33 {
  34 #ifdef HAVE_LCD_BITMAP
  35     int prev_drawmode;
  36 #endif
  37 #ifdef HAVE_LCD_COLOR
  38     int standard_fgcolor;
  39 #endif
  40     int space_w, width, height;
  41     unsigned short x , y;
  42     unsigned short vp_width = LCD_WIDTH;
  43     unsigned short vp_height = LCD_HEIGHT;
  44     int button;
  45     unsigned short i = 0, style_index = 0;
  46     if (vp_text != NULL) {
  47         vp_width = vp_text->width;
  48         vp_height = vp_text->height;
  49     }
  50     rb->screens[SCREEN_MAIN]->set_viewport(vp_text);
  51 #ifdef HAVE_LCD_BITMAP
  52     prev_drawmode = rb->lcd_get_drawmode();
  53     rb->lcd_set_drawmode(DRMODE_SOLID);
  54 #endif
  55 #ifdef HAVE_LCD_COLOR
  56     standard_fgcolor = rb->lcd_get_foreground();
  57 #endif
  58     rb->screens[SCREEN_MAIN]->clear_viewport();
  59     x = MARGIN;
  60     y = MARGIN;
  61     rb->button_clear_queue();
  62     rb->lcd_getstringsize(" ", &space_w, &height);
  63     for (i = 0; i < words; i++) {
  64         rb->lcd_getstringsize(text[i], &width, NULL);
  65         /* skip to next line if the word is an empty string */
  66         if (rb->strcmp(text[i], "")==0) {
  67             x = MARGIN;
  68             y = y + height;
  69             continue;
  70         /* .. or if the current one can't fit the word */
  71         } else if (x + width > vp_width - MARGIN) {
  72             x = MARGIN;
  73             y = y + height;
  74         }
  75         /* display the remaining text by button click or exit */
  76         if (y + height > vp_height - MARGIN) {
  77             y = MARGIN;
  78             rb->screens[SCREEN_MAIN]->update_viewport();
  79             do {
  80                 button = rb->button_get(true);
  81                 if ( rb->default_event_handler( button ) == SYS_USB_CONNECTED )
  82                     return true;
  83             } while( ( button == BUTTON_NONE )
  84                     || ( button & (BUTTON_REL|BUTTON_REPEAT) ) );
  85             rb->screens[SCREEN_MAIN]->clear_viewport();
  86         }
  87         /* no text formatting available */
  88         if (style==NULL || style[style_index].index != i) {
  89             rb->lcd_putsxy(x, y, text[i]);
  90         } else {
  91             /* set align */
  92             if (style[style_index].flags&TEXT_CENTER) {
  93                 x = (vp_width-width)/2;
  94             }
  95             /* set font color */
  96 #ifdef HAVE_LCD_COLOR
  97             switch (style[style_index].flags&TEXT_COLOR_MASK) {
  98                 case C_RED:
  99                     rb->lcd_set_foreground(LCD_RGBPACK(255,0,0));
 100                     break;
 101                 case C_YELLOW:
 102                     rb->lcd_set_foreground(LCD_RGBPACK(255,255,0));
 103                     break;
 104                 case C_GREEN:
 105                     rb->lcd_set_foreground(LCD_RGBPACK(0,192,0));
 106                     break;
 107                 case C_BLUE:
 108                     rb->lcd_set_foreground(LCD_RGBPACK(0,0,255));
 109                     break;
 110                 case C_ORANGE:
 111                     rb->lcd_set_foreground(LCD_RGBPACK(255,192,0));
 112                     break;
 113                 case STANDARD:
 114                 default:
 115                     rb->lcd_set_foreground(standard_fgcolor);
 116                     break;
 117             }
 118 #endif
 119             rb->lcd_putsxy(x, y, text[i]);
 120             /* underline the word */
 121 #ifdef HAVE_LCD_BITMAP
 122             if (style[style_index].flags&TEXT_UNDERLINE) {
 123                 rb->lcd_hline(x, x+width, y+height-1);
 124             }
 125 #endif
 126 #ifdef HAVE_LCD_COLOR
 127             rb->lcd_set_foreground(standard_fgcolor);
 128 #endif
 129             style_index++;
 130         }
 131         x += width + space_w;
 132     }
 133     rb->screens[SCREEN_MAIN]->update_viewport();
 134 #ifdef HAVE_LCD_BITMAP
 135     rb->lcd_set_drawmode(prev_drawmode);
 136 #endif
 137     return false;
 138 }