summaryrefslogtreecommitdiffstats
path: root/apps/plugins/lib/display_text.c
blob: 5d13fc678d8d6112455f89333fce03e772974f85 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
/***************************************************************************
 *             __________               __   ___.
 *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
 *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
 *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
 *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
 *                     \/            \/     \/    \/            \/
 * $Id$
 *
 * Copyright (C) 2009 Johannes Schwarz
 * based on Will Robertson code in superdom
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
 * KIND, either express or implied.
 *
 ****************************************************************************/
#include "plugin.h"
#include "display_text.h"

#ifdef HAVE_LCD_CHARCELLS
#define MARGIN 0
#else
#define MARGIN 5
#endif

static bool wait_key_press(void)
{
    int button;
    do {
        button = rb->button_get(true);
        if ( rb->default_event_handler( button ) == SYS_USB_CONNECTED )
            return true;
    } while( ( button == BUTTON_NONE )
            || ( button & (BUTTON_REL|BUTTON_REPEAT) ) );
    return false;
}

bool display_text(unsigned short words, char** text, struct style_text* style,
                  struct viewport* vp_text, bool wait_key)
{
#ifdef HAVE_LCD_BITMAP
    int prev_drawmode;
#endif
#ifdef HAVE_LCD_COLOR
    int standard_fgcolor;
#endif
    int space_w, width, height;
    unsigned short x , y;
    unsigned short vp_width = LCD_WIDTH;
    unsigned short vp_height = LCD_HEIGHT;
    unsigned short i = 0, style_index = 0;
    if (vp_text != NULL) {
        vp_width = vp_text->width;
        vp_height = vp_text->height;
    }
    rb->screens[SCREEN_MAIN]->set_viewport(vp_text);
#ifdef HAVE_LCD_BITMAP
    prev_drawmode = rb->lcd_get_drawmode();
    rb->lcd_set_drawmode(DRMODE_SOLID);
#endif
#ifdef HAVE_LCD_COLOR
    standard_fgcolor = rb->lcd_get_foreground();
#endif
    rb->screens[SCREEN_MAIN]->clear_viewport();
    x = MARGIN;
    y = MARGIN;
    rb->button_clear_queue();
    rb->lcd_getstringsize(" ", &space_w, &height);
    for (i = 0; i < words; i++) {
        rb->lcd_getstringsize(text[i], &width, NULL);
        /* skip to next line if the word is an empty string */
        if (rb->strcmp(text[i], "")==0) {
            x = MARGIN;
            y = y + height;
            continue;
        /* .. or if the current one can't fit the word */
        } else if (x + width > vp_width - MARGIN) {
            x = MARGIN;
            y = y + height;
        }
        /* display the remaining text by button click or exit */
        if (y + height > vp_height - MARGIN) {
            y = MARGIN;
            rb->screens[SCREEN_MAIN]->update_viewport();
            if (wait_key_press())
                return true;
            rb->screens[SCREEN_MAIN]->clear_viewport();
        }
        /* no text formatting available */
        if (style==NULL || style[style_index].index != i) {
            rb->lcd_putsxy(x, y, text[i]);
        } else {
            /* set align */
            if (style[style_index].flags&TEXT_CENTER) {
                x = (vp_width-width)/2;
            }
            /* set font color */
#ifdef HAVE_LCD_COLOR
            switch (style[style_index].flags&TEXT_COLOR_MASK) {
                case C_RED:
                    rb->lcd_set_foreground(LCD_RGBPACK(255,0,0));
                    break;
                case C_YELLOW:
                    rb->lcd_set_foreground(LCD_RGBPACK(255,255,0));
                    break;
                case C_GREEN:
                    rb->lcd_set_foreground(LCD_RGBPACK(0,192,0));
                    break;
                case C_BLUE:
                    rb->lcd_set_foreground(LCD_RGBPACK(0,0,255));
                    break;
                case C_ORANGE:
                    rb->lcd_set_foreground(LCD_RGBPACK(255,192,0));
                    break;
                case STANDARD:
                default:
                    rb->lcd_set_foreground(standard_fgcolor);
                    break;
            }
#endif
            rb->lcd_putsxy(x, y, text[i]);
            /* underline the word */
#ifdef HAVE_LCD_BITMAP
            if (style[style_index].flags&TEXT_UNDERLINE) {
                rb->lcd_hline(x, x+width, y+height-1);
            }
#endif
#ifdef HAVE_LCD_COLOR
            rb->lcd_set_foreground(standard_fgcolor);
#endif
            style_index++;
        }
        x += width + space_w;
    }
    rb->screens[SCREEN_MAIN]->update_viewport();
#ifdef HAVE_LCD_BITMAP
    rb->lcd_set_drawmode(prev_drawmode);
#endif
    if (wait_key)
    {
        if (wait_key_press())
            return true;
    }
    return false;
}