Add a mechanism for determining which charset to use for a given Mac OS font,

[u/mdw/putty] / mac / macterm.c

diff --git a/mac/macterm.c b/mac/macterm.c
index 6d0904b..2e1a406 100644 (file)
--- a/mac/macterm.c
+++ b/mac/macterm.c
@@ -1,4 +1,4 @@
-/* $Id: macterm.c,v 1.27 2002/12/31 01:40:14 ben Exp $ */
+/* $Id: macterm.c,v 1.30 2003/01/01 19:51:13 ben Exp $ */
 /*
  * Copyright (c) 1999 Simon Tatham
  * Copyright (c) 1999, 2002 Ben Harris
@@ -60,6 +60,7 @@
 
 #include "macresid.h"
 #include "putty.h"
+#include "charset.h"
 #include "mac.h"
 #include "storage.h"
 #include "terminal.h"
@@ -231,14 +232,12 @@ static void mac_initfont(Session *s) {
 
     if (s->uni_to_font != NULL)
        DisposeUnicodeToTextInfo(&s->uni_to_font);
-    if (mac_gestalts.encvvers == 0 ||
+    if (mac_gestalts.encvvers != 0 &&
        UpgradeScriptInfoToTextEncoding(kTextScriptDontCare,
                                        kTextLanguageDontCare,
                                        kTextRegionDontCare, macfont,
-                                       &enc) != noErr ||
-       CreateUnicodeToTextInfoByEncoding(enc, &s->uni_to_font) != noErr) {
-       s->uni_to_font = NULL;
-    } else {
+                                       &enc) == noErr &&
+       CreateUnicodeToTextInfoByEncoding(enc, &s->uni_to_font) == noErr) {
        if (uni_to_font_fallback_upp == NULL)
            uni_to_font_fallback_upp =
                NewUnicodeToTextFallbackProc(&uni_to_font_fallback);
@@ -249,6 +248,12 @@ static void mac_initfont(Session *s) {
            DisposeUnicodeToTextInfo(&s->uni_to_font);
            s->uni_to_font = NULL;
        }
+    } else {
+       s->uni_to_font = NULL;
+       s->font_charset =
+           charset_from_macenc(FontToScript(s->fontnum),
+                               GetScriptManagerVariable(smRegionCode),
+                               mac_gestalts.sysvers, s->cfg.font);
     }
 
     mac_adjustsize(s, s->term->rows, s->term->cols);
@@ -261,7 +266,13 @@ static pascal OSStatus uni_to_font_fallback(UniChar *ucp,
 
     if (olen < 1)
        return kTECOutputBufferFullStatus;
-    *obuf = '?';
+    /*
+     * What I'd _like_ to do here is to somehow generate the
+     * missing-character glyph that every font is required to have.
+     * Unfortunately (and somewhat surprisingly), I can't find any way
+     * to actually ask for it explicitly.  Bah.
+     */
+    *obuf = '.';
     *iusedp = ilen;
     *ousedp = 1;
     return noErr;
@@ -945,7 +956,10 @@ void do_text(Context ctx, int x, int y, char *text, int len,
     RgnHandle textrgn;
     char mactextbuf[1024];
     UniChar unitextbuf[1024];
+    wchar_t *unitextptr;
     int i;
+    ByteCount iread, olen;
+    OSStatus err;
 
     assert(len <= 1024);
 
@@ -959,23 +973,29 @@ void do_text(Context ctx, int x, int y, char *text, int len,
     if (!RectInRgn(&a.textrect, s->window->visRgn))
        return;
 
-    if (s->uni_to_font != NULL) {
-       ByteCount iread, olen;
-       OSStatus err;
+    /* Unpack Unicode from the mad format we get passed */
+    for (i = 0; i < len; i++)
+       unitextbuf[i] = (unsigned char)text[i] | (attr & CSET_MASK);
 
-       for (i = 0; i < len; i++)
-           unitextbuf[i] = (unsigned char)text[i] | (attr & CSET_MASK);
+    if (s->uni_to_font != NULL) {
        err = ConvertFromUnicodeToText(s->uni_to_font, len * sizeof(UniChar),
                                       unitextbuf, kUnicodeUseFallbacksMask,
                                       0, NULL, NULL, NULL,
                                       1024, &iread, &olen, mactextbuf);
-       if (err == noErr || err == kTECUsedFallbacksStatus)
-           text = mactextbuf; len = olen;
-    }
+       if (err != noErr && err != kTECUsedFallbacksStatus)
+           /* XXX Should handle this more sensibly */
+           return;
+    } else  if (s->font_charset != CS_NONE) {
+       /* XXX this is bogus if wchar_t and UniChar are different sizes. */
+       unitextptr = (wchar_t *)unitextbuf;
+       olen = charset_from_unicode(&unitextptr, &len, mactextbuf, 1024,
+                                   s->font_charset, NULL, ".", 1);
+    } else
+       return;
 
     a.s = s;
-    a.text = text;
-    a.len = len;
+    a.text = mactextbuf;
+    a.len = olen;
     a.attr = attr;
     a.lattr = lattr;
     a.numer.h = a.numer.v = a.denom.h = a.denom.v = 1;