ref: c57c8919e303aaad512a5e603f60d4be22d6afea
dir: /sys/src/cmd/aux/antiword/fonts_r.c/
/*
* fonts_r.c
* Copyright (C) 1999-2002 A.J. van Os; Released under GPL
*
* Description:
* Functions to deal with fonts (RiscOs version)
*/
#include <stdlib.h>
#include <string.h>
#include "DeskLib:Font.h"
#include "drawfile.h"
#include "antiword.h"
static font_handle tFontCurr = (font_handle)-1;
/*
* pOpenFontTableFile - open the Font translation file
* Copy the file to the proper place if necessary.
*
* Returns the file pointer or NULL
*/
FILE *
pOpenFontTableFile(void)
{
FILE *pFileR, *pFileW;
char *szFontNamesFile;
size_t tSize;
BOOL bFailed;
char acBuffer[256];
pFileR = fopen("<AntiWord$FontNamesFile>", "r");
if (pFileR != NULL) {
/* The font table is already in the right directory */
return pFileR;
}
szFontNamesFile = getenv("AntiWord$FontNamesSave");
if (szFontNamesFile == NULL) {
werr(0, "Warning: Name of the FontNames file not found");
return NULL;
}
DBG_MSG(szFontNamesFile);
pFileR = fopen("<AntiWord$Dir>.Resources.Default", "r");
if (pFileR == NULL) {
werr(0, "I can't find 'Resources.Default'");
return NULL;
}
/* Here the default font translation table is known to exist */
if (!bMakeDirectory(szFontNamesFile)) {
werr(0,
"I can't make a directory for the FontNames file");
return NULL;
}
/* Here the proper directory is known to exist */
pFileW = fopen(szFontNamesFile, "w");
if (pFileW == NULL) {
(void)fclose(pFileR);
werr(0, "I can't create a default FontNames file");
return NULL;
}
/* Here the proper directory is known to be writeable */
/* Copy the default FontNames file */
bFailed = FALSE;
while (!feof(pFileR)) {
tSize = fread(acBuffer, 1, sizeof(acBuffer), pFileR);
if (ferror(pFileR)) {
DBG_MSG("Read error");
bFailed = TRUE;
break;
}
if (fwrite(acBuffer, 1, tSize, pFileW) != tSize) {
DBG_MSG("Write error");
bFailed = TRUE;
break;
}
}
(void)fclose(pFileW);
(void)fclose(pFileR);
if (bFailed) {
DBG_MSG("Copying the FontNames file failed");
(void)remove(szFontNamesFile);
return NULL;
}
return fopen(szFontNamesFile, "r");
} /* end of pOpenFontTableFile */
/*
* vCloseFont - close the current font, if any
*/
void
vCloseFont(void)
{
os_error *e;
NO_DBG_MSG("vCloseFont");
if (tFontCurr == (font_handle)-1) {
return;
}
e = Font_LoseFont(tFontCurr);
if (e != NULL) {
werr(0, "Close font error %d: %s", e->errnum, e->errmess);
}
tFontCurr = (font_handle)-1;
} /* end of vCloseFont */
/*
* tOpenFont - make the specified font the current font
*
* Returns the font reference number for use in a draw file
*/
drawfile_fontref
tOpenFont(UCHAR ucWordFontNumber, USHORT usFontStyle, USHORT usWordFontSize)
{
os_error *e;
const char *szOurFontname;
font_handle tFont;
int iFontnumber;
NO_DBG_MSG("tOpenFont");
NO_DBG_DEC(ucWordFontNumber);
NO_DBG_HEX(usFontStyle);
NO_DBG_DEC(usWordFontSize);
/* Keep the relevant bits */
usFontStyle &= FONT_BOLD|FONT_ITALIC;
NO_DBG_HEX(usFontStyle);
iFontnumber = iGetFontByNumber(ucWordFontNumber, usFontStyle);
szOurFontname = szGetOurFontname(iFontnumber);
if (szOurFontname == NULL || szOurFontname[0] == '\0') {
tFontCurr = (font_handle)-1;
return (byte)0;
}
NO_DBG_MSG(szOurFontname);
e = Font_FindFont(&tFont, (char *)szOurFontname,
(int)usWordFontSize * 8, (int)usWordFontSize * 8,
0, 0);
if (e != NULL) {
switch (e->errnum) {
case 523:
werr(0, "%s", e->errmess);
break;
default:
werr(0, "Open font error %d: %s",
e->errnum, e->errmess);
break;
}
tFontCurr = (font_handle)-1;
return (drawfile_fontref)0;
}
tFontCurr = tFont;
NO_DBG_DEC(tFontCurr);
return (drawfile_fontref)(iFontnumber + 1);
} /* end of tOpenFont */
/*
* tOpenTableFont - make the table font the current font
*
* Returns the font reference number for use in a draw file
*/
drawfile_fontref
tOpenTableFont(USHORT usWordFontSize)
{
int iWordFontnumber;
NO_DBG_MSG("tOpenTableFont");
iWordFontnumber = iFontname2Fontnumber(TABLE_FONT, FONT_REGULAR);
if (iWordFontnumber < 0 || iWordFontnumber > (int)UCHAR_MAX) {
DBG_DEC(iWordFontnumber);
tFontCurr = (font_handle)-1;
return (drawfile_fontref)0;
}
return tOpenFont((UCHAR)iWordFontnumber, FONT_REGULAR, usWordFontSize);
} /* end of tOpenTableFont */
/*
* lComputeStringWidth - compute the string width
*
* Returns the string width in millipoints
*/
long
lComputeStringWidth(const char *szString, size_t tStringLength,
drawfile_fontref tFontRef, USHORT usFontSize)
{
font_string tStr;
os_error *e;
fail(szString == NULL);
fail(usFontSize < MIN_FONT_SIZE || usFontSize > MAX_FONT_SIZE);
if (szString[0] == '\0' || tStringLength == 0) {
/* Empty string */
return 0;
}
if (tStringLength == 1 && szString[0] == TABLE_SEPARATOR) {
/* Font_strwidth doesn't like control characters */
return 0;
}
if (tFontCurr == (font_handle)-1) {
/* No current font, use systemfont */
return lChar2MilliPoints(tStringLength);
}
tStr.s = (char *)szString;
tStr.x = INT_MAX;
tStr.y = INT_MAX;
tStr.split = -1;
tStr.term = tStringLength;
e = Font_StringWidth(&tStr);
if (e == NULL) {
return (long)tStr.x;
}
DBG_DEC(e->errnum);
DBG_MSG(e->errmess);
DBG_DEC(tStringLength);
DBG_MSG(szString);
werr(0, "String width error %d: %s", e->errnum, e->errmess);
return lChar2MilliPoints(tStringLength);
} /* end of lComputeStringWidth */
/*
* tCountColumns - count the number of columns in a string
*
* Returns the number of columns
*/
size_t
tCountColumns(const char *szString, size_t tLength)
{
fail(szString == NULL);
/* One byte, one character, one column */
return tLength;
} /* end of tCountColumns */
/*
* tGetCharacterLength - the length of the specified character in bytes
*
* Returns the length in bytes
*/
size_t
tGetCharacterLength(const char *szString)
{
return 1;
} /* end of tGetCharacterLength */