rockbox - My Rockbox tree

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Diffstat (limited to 'apps/gui/usb_screen.c')

-rw-r--r--

1 files changed, 2 insertions, 11 deletions

/*************************************************************************** * * __________ __ ___. * Open \______ \ ____ ____ | | _\_ |__ _______ ___ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ * \/ \/ \/ \/ \/ * * * Copyright (C) 2002 Gilles Roux, 2003 Garrett Derner * * 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 <ctype.h> #include "lib/playback_control.h" #include "lib/oldmenuapi.h" PLUGIN_HEADER #define SETTINGS_FILE VIEWERS_DIR "/viewer.dat" /* binary file, so dont use .cfg */ #define BOOKMARKS_FILE VIEWERS_DIR "/viewer_bookmarks.dat" #define WRAP_TRIM 44 /* Max number of spaces to trim (arbitrary) */ #define MAX_COLUMNS 64 /* Max displayable string len (over-estimate) */ #define MAX_WIDTH 910 /* Max line length in WIDE mode */ #define READ_PREV_ZONE 910 /* Arbitrary number less than SMALL_BLOCK_SIZE */ #define SMALL_BLOCK_SIZE 0x1000 /* 4k: Smallest file chunk we will read */ #define LARGE_BLOCK_SIZE 0x2000 /* 8k: Preferable size of file chunk to read */ #define TOP_SECTOR buffer #define MID_SECTOR (buffer + SMALL_BLOCK_SIZE) #define BOTTOM_SECTOR (buffer + 2*(SMALL_BLOCK_SIZE)) #define SCROLLBAR_WIDTH 6 #define MAX_BOOKMARKED_FILES ((buffer_size/(signed)sizeof(struct bookmarked_file_info))-1) /* Out-Of-Bounds test for any pointer to data in the buffer */ #define BUFFER_OOB(p) ((p) < buffer || (p) >= buffer_end) /* Does the buffer contain the beginning of the file? */ #define BUFFER_BOF() (file_pos==0) /* Does the buffer contain the end of the file? */ #define BUFFER_EOF() (file_size-file_pos <= buffer_size) /* Formula for the endpoint address outside of buffer data */ #define BUFFER_END() \ ((BUFFER_EOF()) ? (file_size-file_pos+buffer) : (buffer+buffer_size)) /* Is the entire file being shown in one screen? */ #define ONE_SCREEN_FITS_ALL() \ (next_screen_ptr==NULL && screen_top_ptr==buffer && BUFFER_BOF()) /* Is a scrollbar called for on the current screen? */ #define NEED_SCROLLBAR() \ ((!(ONE_SCREEN_FITS_ALL())) && (prefs.scrollbar_mode==SB_ON)) /* variable button definitions */ /* Recorder keys */ #if CONFIG_KEYPAD == RECORDER_PAD #define VIEWER_QUIT BUTTON_OFF #define VIEWER_PAGE_UP BUTTON_UP #define VIEWER_PAGE_DOWN BUTTON_DOWN #define VIEWER_SCREEN_LEFT BUTTON_LEFT #define VIEWER_SCREEN_RIGHT BUTTON_RIGHT #define VIEWER_MENU BUTTON_F1 #define VIEWER_AUTOSCROLL BUTTON_PLAY #define VIEWER_LINE_UP (BUTTON_ON | BUTTON_UP) #define VIEWER_LINE_DOWN (BUTTON_ON | BUTTON_DOWN) #define VIEWER_COLUMN_LEFT (BUTTON_ON | BUTTON_LEFT) #define VIEWER_COLUMN_RIGHT (BUTTON_ON | BUTTON_RIGHT) #elif CONFIG_KEYPAD == ARCHOS_AV300_PAD #define VIEWER_QUIT BUTTON_OFF #define VIEWER_PAGE_UP BUTTON_UP #define VIEWER_PAGE_DOWN BUTTON_DOWN #define VIEWER_SCREEN_LEFT BUTTON_LEFT #define VIEWER_SCREEN_RIGHT BUTTON_RIGHT #define VIEWER_MENU BUTTON_F1 #define VIEWER_AUTOSCROLL BUTTON_SELECT #define VIEWER_LINE_UP (BUTTON_ON | BUTTON_UP) #define VIEWER_LINE_DOWN (BUTTON_ON | BUTTON_DOWN) #define VIEWER_COLUMN_LEFT (BUTTON_ON | BUTTON_LEFT) #define VIEWER_COLUMN_RIGHT (BUTTON_ON | BUTTON_RIGHT) /* Ondio keys */ #elif CONFIG_KEYPAD == ONDIO_PAD #define VIEWER_QUIT BUTTON_OFF #define VIEWER_PAGE_UP BUTTON_UP #define VIEWER_PAGE_DOWN BUTTON_DOWN #define VIEWER_SCREEN_LEFT BUTTON_LEFT #define VIEWER_SCREEN_RIGHT BUTTON_RIGHT #define VIEWER_MENU (BUTTON_MENU|BUTTON_REPEAT) #define VIEWER_AUTOSCROLL_PRE BUTTON_MENU #define VIEWER_AUTOSCROLL (BUTTON_MENU|BUTTON_REL) /* Player keys */ #elif CONFIG_KEYPAD == PLAYER_PAD #define VIEWER_QUIT BUTTON_STOP #define VIEWER_PAGE_UP BUTTON_LEFT #define VIEWER_PAGE_DOWN BUTTON_RIGHT #define VIEWER_SCREEN_LEFT (BUTTON_ON|BUTTON_LEFT) #define VIEWER_SCREEN_RIGHT (BUTTON_ON|BUTTON_RIGHT) #define VIEWER_MENU BUTTON_MENU #define VIEWER_AUTOSCROLL BUTTON_PLAY /* iRiver H1x0 && H3x0 keys */ #elif (CONFIG_KEYPAD == IRIVER_H100_PAD) || \ (CONFIG_KEYPAD == IRIVER_H300_PAD) #define VIEWER_QUIT BUTTON_OFF #define VIEWER_PAGE_UP BUTTON_UP #define VIEWER_PAGE_DOWN BUTTON_DOWN #define VIEWER_SCREEN_LEFT BUTTON_LEFT #define VIEWER_SCREEN_RIGHT BUTTON_RIGHT #define VIEWER_MENU BUTTON_MODE #define VIEWER_AUTOSCROLL BUTTON_SELECT #define VIEWER_LINE_UP (BUTTON_ON | BUTTON_UP) #define VIEWER_LINE_DOWN (BUTTON_ON | BUTTON_DOWN) #define VIEWER_COLUMN_LEFT (BUTTON_ON | BUTTON_LEFT) #define VIEWER_COLUMN_RIGHT (BUTTON_ON | BUTTON_RIGHT) #define VIEWER_RC_QUIT BUTTON_RC_STOP /* iPods */ #elif (CONFIG_KEYPAD == IPOD_4G_PAD) || \ (CONFIG_KEYPAD == IPOD_3G_PAD) || \ (CONFIG_KEYPAD == IPOD_1G2G_PAD) #define VIEWER_QUIT_PRE BUTTON_SELECT #define VIEWER_QUIT (BUTTON_SELECT | BUTTON_MENU) #define VIEWER_PAGE_UP BUTTON_SCROLL_BACK #define VIEWER_PAGE_DOWN BUTTON_SCROLL_FWD #define VIEWER_SCREEN_LEFT BUTTON_LEFT #define VIEWER_SCREEN_RIGHT BUTTON_RIGHT #define VIEWER_MENU BUTTON_MENU #define VIEWER_AUTOSCROLL BUTTON_PLAY /* iFP7xx keys */ #elif CONFIG_KEYPAD == IRIVER_IFP7XX_PAD #define VIEWER_QUIT BUTTON_PLAY #define VIEWER_PAGE_UP BUTTON_UP #define VIEWER_PAGE_DOWN BUTTON_DOWN #define VIEWER_SCREEN_LEFT BUTTON_LEFT #define VIEWER_SCREEN_RIGHT BUTTON_RIGHT #define VIEWER_MENU BUTTON_MODE #define VIEWER_AUTOSCROLL BUTTON_SELECT /* iAudio X5 keys */ #elif CONFIG_KEYPAD == IAUDIO_X5M5_PAD #define VIEWER_QUIT BUTTON_POWER #define VIEWER_PAGE_UP BUTTON_UP #define VIEWER_PAGE_DOWN BUTTON_DOWN #define VIEWER_SCREEN_LEFT BUTTON_LEFT #define VIEWER_SCREEN_RIGHT BUTTON_RIGHT #define VIEWER_MENU BUTTON_SELECT #define VIEWER_AUTOSCROLL BUTTON_PLAY /* GIGABEAT keys */ #elif CONFIG_KEYPAD == GIGABEAT_PAD #define VIEWER_QUIT BUTTON_POWER #define VIEWER_PAGE_UP BUTTON_UP #define VIEWER_PAGE_DOWN BUTTON_DOWN #define VIEWER_SCREEN_LEFT BUTTON_LEFT #define VIEWER_SCREEN_RIGHT BUTTON_RIGHT #define VIEWER_MENU BUTTON_MENU #define VIEWER_AUTOSCROLL BUTTON_A /* Sansa E200 keys */ #elif CONFIG_KEYPAD == SANSA_E200_PAD #define VIEWER_QUIT BUTTON_POWER #define VIEWER_PAGE_UP BUTTON_UP #define VIEWER_PAGE_DOWN BUTTON_DOWN #define VIEWER_SCREEN_LEFT BUTTON_LEFT #define VIEWER_SCREEN_RIGHT BUTTON_RIGHT #define VIEWER_MENU BUTTON_SELECT #define VIEWER_AUTOSCROLL BUTTON_REC #define VIEWER_LINE_UP BUTTON_SCROLL_BACK #define VIEWER_LINE_DOWN BUTTON_SCROLL_FWD /* Sansa Fuze keys */ #elif CONFIG_KEYPAD == SANSA_FUZE_PAD #define VIEWER_QUIT (BUTTON_HOME|BUTTON_REPEAT) #define VIEWER_PAGE_UP BUTTON_UP #define VIEWER_PAGE_DOWN BUTTON_DOWN #define VIEWER_SCREEN_LEFT BUTTON_LEFT #define VIEWER_SCREEN_RIGHT BUTTON_RIGHT #define VIEWER_MENU BUTTON_SELECT|BUTTON_REPEAT #define VIEWER_AUTOSCROLL BUTTON_SELECT|BUTTON_DOWN #define VIEWER_LINE_UP BUTTON_SCROLL_BACK #define VIEWER_LINE_DOWN BUTTON_SCROLL_FWD /* Sansa C200 keys */ #elif CONFIG_KEYPAD == SANSA_C200_PAD #define VIEWER_QUIT BUTTON_POWER #define VIEWER_PAGE_UP BUTTON_VOL_UP #define VIEWER_PAGE_DOWN BUTTON_VOL_DOWN #define VIEWER_SCREEN_LEFT BUTTON_LEFT #define VIEWER_SCREEN_RIGHT BUTTON_RIGHT #define VIEWER_MENU BUTTON_SELECT #define VIEWER_AUTOSCROLL BUTTON_REC #define VIEWER_LINE_UP BUTTON_UP #define VIEWER_LINE_DOWN BUTTON_DOWN /* Sansa Clip keys */ #elif CONFIG_KEYPAD == SANSA_CLIP_PAD #define VIEWER_QUIT BUTTON_POWER #define VIEWER_PAGE_UP BUTTON_VOL_UP #define VIEWER_PAGE_DOWN BUTTON_VOL_DOWN #define VIEWER_SCREEN_LEFT BUTTON_LEFT #define VIEWER_SCREEN_RIGHT BUTTON_RIGHT #define VIEWER_MENU BUTTON_SELECT #define VIEWER_AUTOSCROLL BUTTON_HOME #define VIEWER_LINE_UP BUTTON_UP #define VIEWER_LINE_DOWN BUTTON_DOWN /* Sansa M200 keys */ #elif CONFIG_KEYPAD == SANSA_M200_PAD #define VIEWER_QUIT BUTTON_POWER #define VIEWER_PAGE_UP BUTTON_VOL_UP #define VIEWER_PAGE_DOWN BUTTON_VOL_DOWN #define VIEWER_SCREEN_LEFT BUTTON_LEFT #define VIEWER_SCREEN_RIGHT BUTTON_RIGHT #define VIEWER_MENU (BUTTON_SELECT | BUTTON_UP) #define VIEWER_AUTOSCROLL (BUTTON_SELECT | BUTTON_REL) #define VIEWER_LINE_UP BUTTON_UP #define VIEWER_LINE_DOWN BUTTON_DOWN /* iriver H10 keys */ #elif CONFIG_KEYPAD == IRIVER_H10_PAD #define VIEWER_QUIT BUTTON_POWER #define VIEWER_PAGE_UP BUTTON_SCROLL_UP #define VIEWER_PAGE_DOWN BUTTON_SCROLL_DOWN #define VIEWER_SCREEN_LEFT BUTTON_LEFT #define VIEWER_SCREEN_RIGHT BUTTON_RIGHT #define VIEWER_MENU BUTTON_REW #define VIEWER_AUTOSCROLL BUTTON_PLAY /*M-Robe 500 keys */ #elif CONFIG_KEYPAD == MROBE500_PAD #define VIEWER_QUIT BUTTON_POWER #define VIEWER_PAGE_UP BUTTON_RC_PLAY #define VIEWER_PAGE_DOWN BUTTON_RC_DOWN #define VIEWER_SCREEN_LEFT BUTTON_LEFT #define VIEWER_SCREEN_RIGHT BUTTON_RIGHT #define VIEWER_MENU BUTTON_RC_HEART #define VIEWER_AUTOSCROLL BUTTON_RC_MODE /*Gigabeat S keys */ #elif CONFIG_KEYPAD == GIGABEAT_S_PAD #define VIEWER_QUIT BUTTON_BACK #define VIEWER_PAGE_UP BUTTON_PREV #define VIEWER_PAGE_DOWN BUTTON_NEXT #define VIEWER_SCREEN_LEFT (BUTTON_PLAY | BUTTON_LEFT) #define VIEWER_SCREEN_RIGHT (BUTTON_PLAY | BUTTON_RIGHT) #define VIEWER_MENU BUTTON_MENU #define VIEWER_AUTOSCROLL_PRE BUTTON_PLAY #define VIEWER_AUTOSCROLL (BUTTON_PLAY|BUTTON_REL) #define VIEWER_LINE_UP BUTTON_UP #define VIEWER_LINE_DOWN BUTTON_DOWN #define VIEWER_COLUMN_LEFT BUTTON_LEFT #define VIEWER_COLUMN_RIGHT BUTTON_RIGHT /*M-Robe 100 keys */ #elif CONFIG_KEYPAD == MROBE100_PAD #define VIEWER_QUIT BUTTON_POWER #define VIEWER_PAGE_UP BUTTON_UP #define VIEWER_PAGE_DOWN BUTTON_DOWN #define VIEWER_SCREEN_LEFT BUTTON_LEFT #define VIEWER_SCREEN_RIGHT BUTTON_RIGHT #define VIEWER_MENU BUTTON_MENU #define VIEWER_AUTOSCROLL BUTTON_DISPLAY /* iAUdio M3 keys */ #elif CONFIG_KEYPAD == IAUDIO_M3_PAD #define VIEWER_QUIT BUTTON_RC_REC #define VIEWER_PAGE_UP BUTTON_RC_VOL_UP #define VIEWER_PAGE_DOWN BUTTON_RC_VOL_DOWN #define VIEWER_SCREEN_LEFT BUTTON_RC_REW #define VIEWER_SCREEN_RIGHT BUTTON_RC_FF #define VIEWER_MENU BUTTON_RC_MENU #define VIEWER_AUTOSCROLL BUTTON_RC_MODE #define VIEWER_RC_QUIT BUTTON_REC /* Cowon D2 keys */ #elif CONFIG_KEYPAD == COWOND2_PAD #define VIEWER_QUIT BUTTON_POWER #define VIEWER_MENU BUTTON_MENU #elif CONFIG_KEYPAD == IAUDIO67_PAD #define VIEWER_QUIT BUTTON_POWER #define VIEWER_PAGE_UP BUTTON_VOLUP #define VIEWER_PAGE_DOWN BUTTON_VOLDOWN #define VIEWER_SCREEN_LEFT BUTTON_LEFT #define VIEWER_SCREEN_RIGHT BUTTON_RIGHT #define VIEWER_MENU BUTTON_MENU #define VIEWER_AUTOSCROLL BUTTON_PLAY #define VIEWER_RC_QUIT BUTTON_STOP /* Creative Zen Vision:M keys */ #elif CONFIG_KEYPAD == CREATIVEZVM_PAD #define VIEWER_QUIT BUTTON_BACK #define VIEWER_PAGE_UP BUTTON_UP #define VIEWER_PAGE_DOWN BUTTON_DOWN #define VIEWER_SCREEN_LEFT BUTTON_LEFT #define VIEWER_SCREEN_RIGHT BUTTON_RIGHT #define VIEWER_MENU BUTTON_MENU #define VIEWER_AUTOSCROLL BUTTON_SELECT /* Philips HDD1630 keys */ #elif CONFIG_KEYPAD == PHILIPS_HDD1630_PAD #define VIEWER_QUIT BUTTON_POWER #define VIEWER_PAGE_UP BUTTON_UP #define VIEWER_PAGE_DOWN BUTTON_DOWN #define VIEWER_SCREEN_LEFT BUTTON_LEFT #define VIEWER_SCREEN_RIGHT BUTTON_RIGHT #define VIEWER_MENU BUTTON_MENU #define VIEWER_AUTOSCROLL BUTTON_VIEW /* Onda VX747 keys */ #elif CONFIG_KEYPAD == ONDAVX747_PAD #define VIEWER_QUIT BUTTON_POWER #define VIEWER_MENU BUTTON_MENU #else #error No keymap defined! #endif #ifdef HAVE_TOUCHSCREEN #ifndef VIEWER_QUIT #define VIEWER_QUIT BUTTON_TOPLEFT #endif #ifndef VIEWER_PAGE_UP #define VIEWER_PAGE_UP BUTTON_TOPMIDDLE #endif #ifndef VIEWER_PAGE_DOWN #define VIEWER_PAGE_DOWN BUTTON_BOTTOMMIDDLE #endif #ifndef VIEWER_SCREEN_LEFT #define VIEWER_SCREEN_LEFT BUTTON_MIDLEFT #endif #ifndef VIEWER_SCREEN_RIGHT #define VIEWER_SCREEN_RIGHT BUTTON_MIDRIGHT #endif #ifndef VIEWER_MENU #define VIEWER_MENU BUTTON_TOPRIGHT #endif #ifndef VIEWER_AUTOSCROLL #define VIEWER_AUTOSCROLL BUTTON_CENTER #endif #endif /* stuff for the bookmarking */ struct bookmarked_file_info { long file_position; int top_ptr_pos; char filename[MAX_PATH]; }; struct bookmark_file_data { signed int bookmarked_files_count; struct bookmarked_file_info bookmarks[]; }; struct preferences { enum { WRAP=0, CHOP, } word_mode; enum { NORMAL=0, JOIN, EXPAND, REFLOW, /* won't be set on charcell LCD, must be last */ } line_mode; enum { NARROW=0, WIDE, } view_mode; enum codepages encoding; #ifdef HAVE_LCD_BITMAP enum { SB_OFF=0, SB_ON, } scrollbar_mode; bool need_scrollbar; enum { NO_OVERLAP=0, OVERLAP, } page_mode; #endif /* HAVE_LCD_BITMAP */ enum { PAGE=0, LINE, } scroll_mode; int autoscroll_speed; }; struct preferences prefs; struct preferences old_prefs; static unsigned char *buffer; static long buffer_size; static unsigned char line_break[] = {0,0x20,9,0xB,0xC,'-'}; static int display_columns; /* number of (pixel) columns on the display */ static int display_lines; /* number of lines on the display */ static int draw_columns; /* number of (pixel) columns available for text */ static int par_indent_spaces; /* number of spaces to indent first paragraph */ static int fd; static const char *file_name; static long file_size; static long start_position; /* position in the file after the viewer is started */ static bool mac_text; static long file_pos; /* Position of the top of the buffer in the file */ static unsigned char *buffer_end; /*Set to BUFFER_END() when file_pos changes*/ static int max_line_len; static unsigned char *screen_top_ptr; static unsigned char *next_screen_ptr; static unsigned char *next_screen_to_draw_ptr; static unsigned char *next_line_ptr; #ifdef HAVE_LCD_BITMAP static struct font *pf; #endif int glyph_width(int ch) { if (ch == 0) ch = ' '; #ifdef HAVE_LCD_BITMAP return rb->font_get_width(pf, ch); #else return 1; #endif } unsigned char* get_ucs(const unsigned char* str, unsigned short* ch) { unsigned char utf8_tmp[6]; int count; if (prefs.encoding == UTF_8) return (unsigned char*)rb->utf8decode(str, ch); count = BUFFER_OOB(str+2)? 1:2; rb->iso_decode(str, utf8_tmp, prefs.encoding, count); rb->utf8decode(utf8_tmp, ch); #ifdef HAVE_LCD_BITMAP if ((prefs.encoding == SJIS && *str > 0xA0 && *str < 0xE0) || prefs.encoding < SJIS) return (unsigned char*)str+1; else #endif return (unsigned char*)str+2; } bool done = false; int col = 0; #define ADVANCE_COUNTERS(c) { width += glyph_width(c); k++; } #define LINE_IS_FULL ((k>=MAX_COLUMNS-1) ||( width >= draw_columns)) #define LINE_IS_NOT_FULL ((k<MAX_COLUMNS-1) &&( width < draw_columns)) static unsigned char* crop_at_width(const unsigned char* p) { int k,width; unsigned short ch; const unsigned char *oldp = p; k=width=0; while (LINE_IS_NOT_FULL) { oldp = p; p = get_ucs(p, &ch); ADVANCE_COUNTERS(ch); } return (unsigned char*)oldp; } static unsigned char* find_first_feed(const unsigned char* p, int size) { int i; for (i=0; i < size; i++) if (p[i] == 0) return (unsigned char*) p+i; return NULL; } static unsigned char* find_last_feed(const unsigned char* p, int size) { int i; for (i=size-1; i>=0; i--) if (p[i] == 0) return (unsigned char*) p+i; return NULL; } static unsigned char* find_last_space(const unsigned char* p, int size) { int i, j, k; k = (prefs.line_mode==JOIN) || (prefs.line_mode==REFLOW) ? 0:1; if (!BUFFER_OOB(&p[size])) for (j=k; j < ((int) sizeof(line_break)) - 1; j++) if (p[size] == line_break[j]) return (unsigned char*) p+size; for (i=size-1; i>=0; i--) for (j=k; j < (int) sizeof(line_break); j++) { if (!((p[i] == '-') && (prefs.word_mode == WRAP))) if (p[i] == line_break[j]) return (unsigned char*) p+i; } return NULL; } static unsigned char* find_next_line(const unsigned char* cur_line, bool *is_short) { const unsigned char *next_line = NULL; int size, i, j, k, width, search_len, spaces, newlines; bool first_chars; unsigned char c; if (is_short != NULL) *is_short = true; if BUFFER_OOB(cur_line) return NULL; if (prefs.view_mode == WIDE) { search_len = MAX_WIDTH; } else { /* prefs.view_mode == NARROW */ search_len = crop_at_width(cur_line) - cur_line; } size = BUFFER_OOB(cur_line+search_len) ? buffer_end-cur_line : search_len; if ((prefs.line_mode == JOIN) || (prefs.line_mode == REFLOW)) { /* Need to scan ahead and possibly increase search_len and size, or possibly set next_line at second hard return in a row. */ next_line = NULL; first_chars=true; for (j=k=width=spaces=newlines=0; ; j++) { if (BUFFER_OOB(cur_line+j)) return NULL; if (LINE_IS_FULL) { size = search_len = j; break; } c = cur_line[j]; switch (c) { case ' ': if (prefs.line_mode == REFLOW) { if (newlines > 0) { size = j; next_line = cur_line + size; return (unsigned char*) next_line; } if (j==0) /* i=1 is intentional */ for (i=0; i<par_indent_spaces; i++) ADVANCE_COUNTERS(' '); } if (!first_chars) spaces++; break;


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