summaryrefslogtreecommitdiffstats
path: root/apps/gui/splash.c
blob: d0f1fbb67c0bb1acb01a6624809bb58eb100d8eb (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
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
/***************************************************************************
 *             __________               __   ___.
 *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
 *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
 *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
 *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
 *                     \/            \/     \/    \/            \/
 * $Id$
 *
 * Copyright (C) Daniel Stenberg (2002)
 *
 * 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 "stdarg.h"
#include "string.h"
#include "rbunicode.h"
#include "stdio.h"
#include "kernel.h"
#include "screen_access.h"
#include "lang.h"
#include "settings.h"
#include "talk.h"
#include "splash.h"
#include "viewport.h"
#include "strptokspn_r.h"
#include "scrollbar.h"
#include "font.h"

static long progress_next_tick = 0;

#define MAXLINES  (LCD_HEIGHT/6)
#define MAXBUFFER 512
#define RECT_SPACING 2
#define SPLASH_MEMORY_INTERVAL (HZ)

static bool splash_internal(struct screen * screen, const char *fmt, va_list ap,
                            struct viewport *vp, int addl_lines)
{
    char splash_buf[MAXBUFFER];
    struct splash_lines {
        const char *str;
        size_t len;
    } lines[MAXLINES];
    const char *next;
    const char *lastbreak = NULL;
    const char *store = NULL;
    int line = 0;
    int x = 0;
    int y, i;
    int space_w, w, chr_h;
    int width, height;
    int maxw = 0;
    int fontnum = vp->font;

    char lastbrkchr;
    size_t len, next_len;
    const char matchstr[] = "\r\n\f\v\t ";
    font_getstringsize(" ", &space_w, &chr_h, fontnum);
    y = chr_h + (addl_lines * chr_h);

    vsnprintf(splash_buf, sizeof(splash_buf), fmt, ap);
    va_end(ap);

    /* break splash string into display lines, doing proper word wrap */
    next = strptokspn_r(splash_buf, matchstr, &next_len, &store);
    if (!next)
        return false; /* nothing to display */

    lines[line].len = next_len;
    lines[line].str = next;
    while (true)
    {
        w = font_getstringnsize(next, next_len, NULL, NULL, fontnum);
        if (lastbreak)
        {
            len = next - lastbreak;
            int next_w = len * space_w;
            if (x + next_w + w > vp->width - RECT_SPACING*2 || lastbrkchr != ' ')
            {   /* too wide, or control character wrap */
                if (x > maxw)
                    maxw = x;
                if ((y + chr_h * 2 > vp->height) || (line >= (MAXLINES-1)))
                    break;  /* screen full or out of lines */
                x = 0;
                y += chr_h;
                lines[++line].len = next_len;
                lines[line].str = next;
            }
            else
            {
                /*  restore & calculate spacing */
                lines[line].len += next_len + 1;
                x += next_w;
            }
        }
        x += w;

        lastbreak = next + next_len;
        lastbrkchr = *lastbreak;

        next = strptokspn_r(NULL, matchstr, &next_len, &store);

        if (!next)
        {   /* no more words */
            if (x > maxw)
                maxw = x;
            break;
        }
    }

    /* prepare viewport
     * First boundaries, then the grey filling, then the black border and finally
     * the text*/

    screen->scroll_stop();

    width = maxw + 2*RECT_SPACING;
    height = y + 2*RECT_SPACING;

    if (width > vp->width)
        width = vp->width;
    if (height > vp->height)
        height = vp->height;

    vp->x += (vp->width - width) / 2;
    vp->y += (vp->height - height) / 2;
    vp->width = width;
    vp->height = height;

    vp->flags |=  VP_FLAG_ALIGN_CENTER;
#if LCD_DEPTH > 1
    if (screen->depth > 1)
    {
        vp->drawmode = DRMODE_FG;
        /* can't do vp->fg_pattern here, since set_foreground does a bit more on
         * greyscale */
        screen->set_foreground(SCREEN_COLOR_TO_NATIVE(screen, LCD_LIGHTGRAY));
    }
    else
#endif
        vp->drawmode = (DRMODE_SOLID|DRMODE_INVERSEVID);

    screen->fill_viewport();

#if LCD_DEPTH > 1
    if (screen->depth > 1)
        /* can't do vp->fg_pattern here, since set_foreground does a bit more on
         * greyscale */
        screen->set_foreground(SCREEN_COLOR_TO_NATIVE(screen, LCD_BLACK));
    else
#endif
        vp->drawmode = DRMODE_SOLID;

    screen->draw_border_viewport();

    /* print the message to screen */
    for(i = 0, y = RECT_SPACING; i <= line; i++, y+= chr_h)
    {
        screen->putsxyf(0, y, "%.*s", lines[i].len, lines[i].str);
    }
    return true; /* needs update */
}

void splashf(int ticks, const char *fmt, ...)
{
    va_list ap;

    /* If fmt is a lang ID then get the corresponding string (which
       still might contain % place holders). */
    fmt = P2STR((unsigned char *)fmt);
    FOR_NB_SCREENS(i)
    {
        struct screen * screen = &(screens[i]);
        struct viewport vp;
        viewport_set_defaults(&vp, screen->screen_type);
        struct viewport *last_vp = screen->set_viewport(&vp);

        va_start(ap, fmt);
        if (splash_internal(screen, fmt, ap, &vp, 0))
            screen->update_viewport();
        va_end(ap);

        screen->set_viewport(last_vp);
    }
    if (ticks)
        sleep(ticks);
}

void splash(int ticks, const char *str)
{
#if !defined(SIMULATOR)
    long id;
    /* fmt may be a so called virtual pointer. See settings.h. */
    if((id = P2ID((const unsigned char*)str)) >= 0)
        /* If fmt specifies a voicefont ID, and voice menus are
           enabled, then speak it. */
        cond_talk_ids_fq(id);
#endif
    splashf(ticks, "%s", P2STR((const unsigned char*)str));
}

/* set delay before progress meter is shown */
void splash_progress_set_delay(long delay_ticks)
{
    progress_next_tick = current_tick + delay_ticks;
}

/* splash a progress meter */
void splash_progress(int current, int total, const char *fmt, ...)
{
    va_list ap;
    int vp_flag = VP_FLAG_VP_DIRTY;
    /* progress update tick */
    long now = current_tick;

    if (current < total)
    {
        if(TIME_BEFORE(now, progress_next_tick))
            return;
        /* limit to 20fps */
        progress_next_tick = now + HZ/20;
        vp_flag = 0; /* don't mark vp dirty to prevent flashing */
    }

    /* If fmt is a lang ID then get the corresponding string (which
       still might contain % place holders). */
    fmt = P2STR((unsigned char *)fmt);
    FOR_NB_SCREENS(i)
    {
        struct screen * screen = &(screens[i]);
        struct viewport vp;
        viewport_set_defaults(&vp, screen->screen_type);
        struct viewport *last_vp = screen->set_viewport_ex(&vp, vp_flag);

        va_start(ap, fmt);
        if (splash_internal(screen, fmt, ap, &vp, 1))
        {
            int size = screen->getcharheight();
            int x = RECT_SPACING;
            int y = vp.height - size - RECT_SPACING;
            int w = vp.width - RECT_SPACING * 2;
            int h = size;
#ifdef HAVE_LCD_COLOR
            const int sb_flags = HORIZONTAL | FOREGROUND;
#else
            const int sb_flags = HORIZONTAL;
#endif
            gui_scrollbar_draw(screen, x, y, w, h, total, 0, current, sb_flags);

            screen->update_viewport();
        }
        va_end(ap);

        screen->set_viewport(last_vp);
    }
}