Subject:
engine/devfont.c for HAVE_BIG5_SUPPORT
From:
####@####.####
Date:
17 Aug 2000 04:31:06 -0000
Message-Id: <00d501c00804$9aa0e160$1b0448c0@gv.com.tw>
/*
* Draw ascii text using COREFONT type font.
*/
void
corefont_drawtext(PMWFONT pfont, PSD psd, MWCOORD x, MWCOORD y,
const void *text, int cc, int flags)
{
const unsigned char *str = text;
MWCOORD width; /* width of text area */
MWCOORD height; /* height of text area */
MWCOORD base; /* baseline of text*/
MWCOORD startx, starty;
/* bitmap for characters */
MWIMAGEBITS bitmap[MAX_CHAR_HEIGHT*MAX_CHAR_WIDTH/MWIMAGE_BITSPERIMAGE];
pfont->fontprocs->GetTextSize(pfont, str, cc, &width, &height, &base);
if(flags & MWTF_BASELINE)
y -= base;
else if(flags & MWTF_BOTTOM)
y -= (height - 1);
startx = x;
starty = y + base;
switch (GdClipArea(psd, x, y, x + width - 1, y + height - 1)) {
case CLIP_VISIBLE:
/*
* For size considerations, there's no low-level text
* draw, so we've got to draw all text
* with per-point clipping for the time being
if (gr_usebg)
psd->FillRect(psd, x, y, x + width - 1, y + height - 1,
gr_background);
psd->DrawText(psd, x, y, str, cc, gr_foreground, pfont);
GdFixCursor(psd);
return;
*/
break;
case CLIP_INVISIBLE:
return;
}
/* Get the bitmap for each character individually, and then display
* them using clipping for each one.
*/
while (--cc >= 0 && x < psd->xvirtres) {
unsigned int ch = *str++;
+#if HAVE_BIG5_SUPPORT
+ /* chinese big5 decoding*/
+ if (ch >= 0xA1 && ch <= 0xF9 && cc >= 1 &&
+ ((*str >= 0x40 && *str <= 0x7E) ||
+ (*str >= 0xA1 && *str <= 0xFE)) ) {
+ ch = (ch << 8) | *str++;
+ --cc;
+ }
+#endif
#if HAVE_GB2312_SUPPORT
/* chinese gb2312 decoding*/
if (ch >= 0xA1 && ch < 0xF8 && cc >= 1 &&
*str >= 0xA1 && *str < 0xFF) {
ch = (ch << 8) | *str++;
--cc;
}
#endif
pfont->fontprocs->GetTextBits(pfont, ch, bitmap, &width,
&height, &base);
/* note: change to bitmap*/
GdBitmap(psd, x, y, width, height, bitmap);
x += width;
}
if (pfont->fontattr & MWTF_UNDERLINE)
GdLine(psd, startx, starty, x, starty, FALSE);
GdFixCursor(psd);
}
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