249bba03f1
This port is a hybrid native/RaaA port. It runs on a embedded linux system, but is the only application. It therefore can implement lots of stuff that native targets also implement, while leveraging the underlying linux kernel. The port is quite advanced. User interface, audio playback, plugins work mostly fine. Missing is e.g. power mangement and USB (see SamsungYPR0 wiki page). Included in utils/ypr0tools are scripts and programs required to generate a patched firmware. The patched firmware has the rootfs modified to load Rockbox. It includes a early/safe USB mode. This port needs a new toolchain, one that includes glibc headers and libraries. rockboxdev.sh can generate it, but e.g. codesourcey and distro packages may also work. Most of the initial effort is done by Lorenzo Miori and others (on ABI), including reverse engineering and patching of the original firmware, initial drivers, and more. Big thanks to you. Flyspray: FS#12348 Author: Lorenzo Miori, myself Merry christmas to ypr0 owners! :) git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31415 a1c6a512-1295-4272-9138-f99709370657
331 lines
8.3 KiB
C
331 lines
8.3 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2010 Teruaki Kawashima
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "config.h"
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#include "plugin.h"
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#include "pluginlib_actions.h"
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#include "simple_viewer.h"
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#include <ctype.h>
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struct view_info {
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#ifdef HAVE_LCD_BITMAP
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struct font* pf;
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struct viewport scrollbar_vp; /* viewport for scrollbar */
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#endif
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struct viewport vp;
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const char *title;
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const char *text; /* displayed text */
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int display_lines; /* number of lines can be displayed */
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int line_count; /* number of lines */
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int line; /* current first line */
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int start; /* possition of first line in text */
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};
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static bool isbrchr(const unsigned char *str, int len)
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{
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const unsigned char *p = "!,-.:;? 、。！，．：；？―";
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if (isspace(*str))
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return true;
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while(*p)
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{
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int n = rb->utf8seek(p, 1);
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if (len == n && !rb->strncmp(p, str, len))
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return true;
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p += n;
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}
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return false;
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}
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static const char* get_next_line(const char *text, struct view_info *info)
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{
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const char *ptr = text;
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const char *space = NULL;
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int total, n, w;
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total = 0;
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while(*ptr)
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{
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#ifdef HAVE_LCD_CHARCELLS
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n = rb->utf8seek(ptr, 1);
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w = 1;
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#else
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unsigned short ch;
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n = ((long)rb->utf8decode(ptr, &ch) - (long)ptr);
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if (rb->is_diacritic(ch, NULL))
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w = 0;
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else
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w = rb->font_get_width(info->pf, ch);
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#endif
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if (isbrchr(ptr, n))
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space = ptr+(isspace(*ptr) || total + w <= info->vp.width? n: 0);
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if (*ptr == '\n')
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{
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ptr += n;
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break;
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}
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if (total + w > info->vp.width)
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break;
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ptr += n;
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total += w;
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}
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return *ptr && space? space: ptr;
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}
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static void calc_line_count(struct view_info *info)
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{
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const char *ptr = info->text;
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int i = 0;
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#ifdef HAVE_LCD_BITMAP
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bool scrollbar = false;
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#endif
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while (*ptr)
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{
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ptr = get_next_line(ptr, info);
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i++;
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#ifdef HAVE_LCD_BITMAP
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if (!scrollbar && i > info->display_lines)
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{
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ptr = info->text;
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i = 0;
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info->scrollbar_vp = info->vp;
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info->scrollbar_vp.width = rb->global_settings->scrollbar_width;
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info->vp.width -= info->scrollbar_vp.width;
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if (rb->global_settings->scrollbar != SCROLLBAR_RIGHT)
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info->vp.x = info->scrollbar_vp.width;
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else
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info->scrollbar_vp.x = info->vp.width;
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scrollbar = true;
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}
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#endif
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}
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info->line_count = i;
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}
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static void calc_first_line(struct view_info *info, int line)
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{
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const char *ptr = info->text;
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int i = 0;
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if (line > info->line_count - info->display_lines)
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line = info->line_count - info->display_lines;
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if (line < 0)
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line = 0;
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if (info->line <= line)
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{
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ptr += info->start;
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i = info->line;
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}
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while (*ptr && i < line)
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{
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ptr = get_next_line(ptr, info);
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i++;
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}
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info->start = ptr - info->text;
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info->line = i;
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}
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static int init_view(struct view_info *info,
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const char *title, const char *text)
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{
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rb->viewport_set_defaults(&info->vp, SCREEN_MAIN);
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#ifdef HAVE_LCD_BITMAP
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info->pf = rb->font_get(FONT_UI);
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info->display_lines = info->vp.height / info->pf->height;
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#else
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info->display_lines = info->vp.height;
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#endif
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info->title = title;
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info->text = text;
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info->line_count = 0;
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info->line = 0;
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info->start = 0;
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#ifdef HAVE_LCD_BITMAP
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/* no title for small screens. */
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if (info->display_lines < 4)
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{
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info->title = NULL;
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}
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else
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{
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info->display_lines--;
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info->vp.y += info->pf->height;
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info->vp.height -= info->pf->height;
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}
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#endif
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calc_line_count(info);
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return 0;
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}
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static void draw_text(struct view_info *info)
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{
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#ifdef HAVE_LCD_BITMAP
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#define OUTPUT_SIZE LCD_WIDTH+1
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#else
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#define OUTPUT_SIZE LCD_WIDTH*3+1
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#endif
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static char output[OUTPUT_SIZE];
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const char *text, *ptr;
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int max_show, line;
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struct screen* display = rb->screens[SCREEN_MAIN];
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/* clear screen */
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display->clear_display();
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#ifdef HAVE_LCD_BITMAP
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/* display title. */
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if(info->title)
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{
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display->set_viewport(NULL);
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display->puts(0, 0, info->title);
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}
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#endif
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max_show = MIN(info->line_count - info->line, info->display_lines);
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text = info->text + info->start;
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display->set_viewport(&info->vp);
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for (line = 0; line < max_show; line++)
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{
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int len;
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ptr = get_next_line(text, info);
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len = ptr-text;
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while(len > 0 && isspace(text[len-1]))
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len--;
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rb->memcpy(output, text, len);
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output[len] = 0;
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display->puts(0, line, output);
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text = ptr;
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}
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#ifdef HAVE_LCD_BITMAP
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if (info->line_count > info->display_lines)
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{
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display->set_viewport(&info->scrollbar_vp);
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rb->gui_scrollbar_draw(display, (info->scrollbar_vp.width? 0: 1), 0,
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info->scrollbar_vp.width - 1, info->scrollbar_vp.height,
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info->line_count, info->line, info->line + max_show,
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VERTICAL);
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}
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#endif
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display->set_viewport(NULL);
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display->update();
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}
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static void scroll_up(struct view_info *info, int n)
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{
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if (info->line <= 0)
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return;
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calc_first_line(info, info->line-n);
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draw_text(info);
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}
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static void scroll_down(struct view_info *info, int n)
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{
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if (info->line + info->display_lines >= info->line_count)
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return;
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calc_first_line(info, info->line+n);
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draw_text(info);
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}
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static void scroll_to_top(struct view_info *info)
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{
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if (info->line <= 0)
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return;
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calc_first_line(info, 0);
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draw_text(info);
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}
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static void scroll_to_bottom(struct view_info *info)
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{
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if (info->line + info->display_lines >= info->line_count)
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return;
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calc_first_line(info, info->line_count - info->display_lines);
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draw_text(info);
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}
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int view_text(const char *title, const char *text)
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{
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struct view_info info;
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const struct button_mapping *view_contexts[] = {
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pla_main_ctx,
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};
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int button;
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init_view(&info, title, text);
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draw_text(&info);
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/* wait for keypress */
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while(1)
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{
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button = pluginlib_getaction(TIMEOUT_BLOCK, view_contexts,
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ARRAYLEN(view_contexts));
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switch (button)
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{
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case PLA_UP:
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case PLA_UP_REPEAT:
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#ifdef HAVE_SCROLLWHEEL
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case PLA_SCROLL_BACK:
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case PLA_SCROLL_BACK_REPEAT:
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#endif
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scroll_up(&info, 1);
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break;
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case PLA_DOWN:
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case PLA_DOWN_REPEAT:
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#ifdef HAVE_SCROLLWHEEL
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case PLA_SCROLL_FWD:
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case PLA_SCROLL_FWD_REPEAT:
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#endif
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scroll_down(&info, 1);
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break;
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case PLA_LEFT:
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scroll_up(&info, info.display_lines);
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break;
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case PLA_RIGHT:
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scroll_down(&info, info.display_lines);
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break;
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case PLA_LEFT_REPEAT:
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scroll_to_top(&info);
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break;
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case PLA_RIGHT_REPEAT:
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scroll_to_bottom(&info);
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break;
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case PLA_EXIT:
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case PLA_CANCEL:
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return PLUGIN_OK;
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default:
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if (rb->default_event_handler(button) == SYS_USB_CONNECTED)
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return PLUGIN_USB_CONNECTED;
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break;
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}
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}
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return PLUGIN_OK;
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}
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