ebclient/lib/ebu/samples/font.c
Jacques De SAGAN 03de9e18bb first import
2024-04-07 11:52:06 +08:00

161 lines
5.4 KiB
C

/* -*- C -*-
* Copyright (c) 2002-2006 Motoyuki Kasahara
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the project nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* 使用方法:
* font <book-path> <subbook-index>
* 例:
* font /cdrom 0
* 説明:
* <book-path> で指定した CD-ROM 書籍から特定の副本を選び、その
* 副本が定義している半角外字 (高さ 16 ピクセル) をすべてアスキー
* アートで表示します。
*
* その副本が、高さ 16 ピクセルの半角外字を定義していないと、エ
* ラーになります。
*
* <subbook-index> には、検索対象の副本のインデックスを指定しま
* す。インデックスは、書籍の最初の副本から順に 0、1、2 ... に
* なります。
*/
#include <stdio.h>
#include <stdlib.h>
#include <eb/eb.h>
#include <eb/error.h>
#include <eb/font.h>
int
main(int argc, char *argv[])
{
EB_Error_Code error_code;
EB_Book book;
EB_Subbook_Code subbook_list[EB_MAX_SUBBOOKS];
int subbook_count;
int subbook_index;
int font_start;
unsigned char bitmap[EB_SIZE_NARROW_FONT_16];
int i, j;
/* コマンド行引数をチェック。*/
if (argc != 3) {
fprintf(stderr, "Usage: %s book-path subbook-index\n",
argv[0]);
exit(1);
}
/* EB ライブラリと `book' を初期化。*/
eb_initialize_library();
eb_initialize_book(&book);
/* 書籍を `book' に結び付ける。*/
error_code = eb_bind(&book, argv[1]);
if (error_code != EB_SUCCESS) {
fprintf(stderr, "%s: failed to bind the book, %s: %s\n",
argv[0], eb_error_message(error_code), argv[1]);
goto die;
}
/* 副本の一覧を取得。*/
error_code = eb_subbook_list(&book, subbook_list, &subbook_count);
if (error_code != EB_SUCCESS) {
fprintf(stderr, "%s: failed to get the subbbook list, %s\n",
argv[0], eb_error_message(error_code));
goto die;
}
/* 副本のインデックスを取得。*/
subbook_index = atoi(argv[2]);
/*「現在の副本 (current subbook)」を設定。*/
error_code = eb_set_subbook(&book, subbook_list[subbook_index]);
if (error_code != EB_SUCCESS) {
fprintf(stderr, "%s: failed to set the current subbook, %s\n",
argv[0], eb_error_message(error_code));
goto die;
}
/*「現在の外字の大きさ」を設定。*/
if (eb_set_font(&book, EB_FONT_16) < 0) {
fprintf(stderr, "%s: failed to set the font size, %s\n",
argv[0], eb_error_message(error_code));
goto die;
}
/* 外字の開始位置を取得。*/
error_code = eb_narrow_font_start(&book, &font_start);
if (error_code != EB_SUCCESS) {
fprintf(stderr, "%s: failed to get font information, %s\n",
argv[0], eb_error_message(error_code));
goto die;
}
i = font_start;
for (;;) {
/* 外字のビットマップデータを取得。*/
error_code = eb_narrow_font_character_bitmap(&book, i,
(char *)bitmap);
if (error_code != EB_SUCCESS) {
fprintf(stderr, "%s: failed to get font data, %s\n",
argv[0], eb_error_message(error_code));
goto die;
}
/* ビットマップをアスキーアートにして出力。*/
printf("code point=%04x\n", i);
for (j = 0; j < 16; j++) {
fputc((bitmap[j] & 0x80) ? '*' : ' ', stdout);
fputc((bitmap[j] & 0x40) ? '*' : ' ', stdout);
fputc((bitmap[j] & 0x20) ? '*' : ' ', stdout);
fputc((bitmap[j] & 0x10) ? '*' : ' ', stdout);
fputc((bitmap[j] & 0x08) ? '*' : ' ', stdout);
fputc((bitmap[j] & 0x04) ? '*' : ' ', stdout);
fputc((bitmap[j] & 0x02) ? '*' : ' ', stdout);
fputc((bitmap[j] & 0x01) ? '*' : ' ', stdout);
fputc('\n', stdout);
}
fputs("--------\n", stdout);
/* 外字の文字番号を一つ進める。*/
error_code = eb_forward_narrow_font_character(&book, 1, &i);
if (error_code != EB_SUCCESS)
break;
}
/* 書籍と EB ライブラリの利用を終了。*/
eb_finalize_book(&book);
eb_finalize_library();
exit(0);
/* エラー発生で終了するときの処理。*/
die:
eb_finalize_book(&book);
eb_finalize_library();
exit(1);
}