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gtk/gdk/win32/gdkfont.c
Tor Lillqvist b5f414a1a5 gdk/win32/gdkdraw.c gdk/win32/gdkfont.c Various minor cleanups and 
1999-11-08  Tor Lillqvist  <tml@iki.fi>

* gdk/win32/gdkdraw.c
* gdk/win32/gdkfont.c
* gdk/win32/gdkgc.c: Various minor cleanups and bugfixes
following yesterday's changes. (Unrelated to Owen's reorg.)
1999-11-08 21:34:06 +00:00

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/* GDK - The GIMP Drawing Kit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Modified by the GTK+ Team and others 1997-1999. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#include "config.h"
#include <stdio.h>
#include <ctype.h>
#include "gdkfont.h"
#include "gdkx.h"
static GHashTable *font_name_hash = NULL;
static GHashTable *fontset_name_hash = NULL;
static void
gdk_font_hash_insert (GdkFontType type,
GdkFont *font,
const gchar *font_name)
{
GdkFontPrivate *private = (GdkFontPrivate *) font;
GHashTable **hashp = (type == GDK_FONT_FONT) ?
&font_name_hash : &fontset_name_hash;
if (!*hashp)
*hashp = g_hash_table_new (g_str_hash, g_str_equal);
private->names = g_slist_prepend (private->names, g_strdup (font_name));
g_hash_table_insert (*hashp, private->names->data, font);
}
static void
gdk_font_hash_remove (GdkFontType type,
GdkFont *font)
{
GdkFontPrivate *private = (GdkFontPrivate *) font;
GSList *tmp_list;
GHashTable *hash = (type == GDK_FONT_FONT) ?
font_name_hash : fontset_name_hash;
tmp_list = private->names;
while (tmp_list)
{
g_hash_table_remove (hash, tmp_list->data);
g_free (tmp_list->data);
tmp_list = tmp_list->next;
}
g_slist_free (private->names);
private->names = NULL;
}
static GdkFont *
gdk_font_hash_lookup (GdkFontType type,
const gchar *font_name)
{
GdkFont *result;
GHashTable *hash = (type == GDK_FONT_FONT) ?
font_name_hash : fontset_name_hash;
if (!hash)
return NULL;
else
{
result = g_hash_table_lookup (hash, font_name);
if (result)
gdk_font_ref (result);
return result;
}
}
static const char *
charset_name (DWORD charset)
{
switch (charset)
{
case ANSI_CHARSET: return "ansi";
case DEFAULT_CHARSET: return "default";
case SYMBOL_CHARSET: return "symbol";
case SHIFTJIS_CHARSET: return "shiftjis";
case HANGEUL_CHARSET: return "hangeul";
case GB2312_CHARSET: return "gb2312";
case CHINESEBIG5_CHARSET: return "big5";
case JOHAB_CHARSET: return "johab";
case HEBREW_CHARSET: return "hebrew";
case ARABIC_CHARSET: return "arabic";
case GREEK_CHARSET: return "greek";
case TURKISH_CHARSET: return "turkish";
case VIETNAMESE_CHARSET: return "vietnamese";
case THAI_CHARSET: return "thai";
case EASTEUROPE_CHARSET: return "easteurope";
case RUSSIAN_CHARSET: return "russian";
case MAC_CHARSET: return "mac";
case BALTIC_CHARSET: return "baltic";
}
return "unknown";
}
static gint num_fonts;
static gint font_names_size;
static gchar **xfontnames;
static gchar *
logfont_to_xlfd (const LOGFONT *lfp,
int size,
int res,
int avg_width)
{
const gchar *weight;
const gchar *registry, *encoding;
int point_size;
static int logpixelsy = 0;
gchar facename[LF_FACESIZE*3];
gchar *p;
const gchar *q;
if (logpixelsy == 0)
{
logpixelsy = GetDeviceCaps (gdk_DC, LOGPIXELSY);
}
if (lfp->lfWeight >= FW_HEAVY)
weight = "heavy";
else if (lfp->lfWeight >= FW_EXTRABOLD)
weight = "extrabold";
else if (lfp->lfWeight >= FW_BOLD)
weight = "bold";
#ifdef FW_DEMIBOLD
else if (lfp->lfWeight >= FW_DEMIBOLD)
weight = "demibold";
#endif
else if (lfp->lfWeight >= FW_MEDIUM)
weight = "medium";
else if (lfp->lfWeight >= FW_NORMAL)
weight = "normal";
else if (lfp->lfWeight >= FW_LIGHT)
weight = "light";
else if (lfp->lfWeight >= FW_EXTRALIGHT)
weight = "extralight";
else if (lfp->lfWeight >= FW_THIN)
weight = "thin";
else
weight = "regular";
switch (lfp->lfCharSet)
{
case ANSI_CHARSET:
registry = "iso8859";
encoding = "1";
break;
case SHIFTJIS_CHARSET:
registry = "jisx0208.1983";
encoding = "0";
break;
case HANGEUL_CHARSET:
registry = "ksc5601.1987";
encoding = "0";
break;
case GB2312_CHARSET:
registry = "gb2312.1980";
encoding = "0";
break;
case CHINESEBIG5_CHARSET:
registry = "big5";
encoding = "0";
break;
case GREEK_CHARSET:
registry = "iso8859";
encoding = "7";
break;
case TURKISH_CHARSET:
registry = "iso8859";
encoding = "9";
break;
#if 0 /* Not a good idea, I think, to use ISO8859-8 and -6 for the Windows
* hebrew and arabic codepages, they differ too much.
*/
case HEBREW_CHARSET:
registry = "iso8859";
encoding = "8";
break;
case ARABIC_CHARSET:
registry = "iso8859";
encoding = "6";
break;
#endif
default:
registry = "microsoft";
encoding = charset_name (lfp->lfCharSet);
}
point_size = (int) (((double) size/logpixelsy) * 720.);
if (res == -1)
res = logpixelsy;
/* Replace illegal characters with hex escapes. */
p = facename;
q = lfp->lfFaceName;
while (*q)
{
if (*q == '-' || *q == '*' || *q == '?' || *q == '%')
p += sprintf (p, "%%%.02x", *q);
else
*p++ = *q;
q++;
}
*p = '\0';
return g_strdup_printf
("-%s-%s-%s-%s-%s-%s-%d-%d-%d-%d-%s-%d-%s-%s",
"unknown",
facename,
weight,
(lfp->lfItalic ?
((lfp->lfPitchAndFamily & 0xF0) == FF_ROMAN
|| (lfp->lfPitchAndFamily & 0xF0) == FF_SCRIPT ?
"i" : "o") : "r"),
"normal",
"",
size,
point_size,
res,
res,
((lfp->lfPitchAndFamily & 0x03) == FIXED_PITCH ? "m" : "p"),
avg_width,
registry, encoding);
}
gchar *
gdk_font_xlfd_create (GdkFont *font)
{
GdkFontPrivate *private;
GdkWin32SingleFont *singlefont;
GSList *list;
GString *string;
gchar *result;
LOGFONT logfont;
g_return_val_if_fail (font != NULL, NULL);
private = (GdkFontPrivate *) font;
list = private->fonts;
string = g_string_new ("");
while (list)
{
singlefont = (GdkWin32SingleFont *) list->data;
if (GetObject (singlefont->xfont, sizeof (LOGFONT), &logfont) == 0)
{
g_warning ("gdk_win32_font_xlfd: GetObject failed");
return NULL;
}
string =
g_string_append (string,
logfont_to_xlfd (&logfont, logfont.lfHeight, -1, 0));
list = list->next;
if (list)
string = g_string_append_c (string, ',');
}
result = string->str;
g_string_free (string, FALSE);
return result;
}
void
gdk_font_xlfd_free (gchar *xlfd)
{
g_free (xlfd);
}
static gboolean
pattern_match (const gchar *pattern,
const gchar *string)
{
const gchar *p = pattern, *n = string;
gchar c, c1;
/* Common case first */
if ((pattern[0] == '*'
&& pattern[1] == '\0')
|| (pattern[0] == '-'
&& pattern[1] == '*'
&& pattern[2] == '\0'))
return TRUE;
while ((c = *p++) != '\0')
{
c = tolower (c);
switch (c)
{
case '?':
if (*n == '\0')
return FALSE;
break;
case '*':
for (c = *p++; c == '?' || c == '*'; c = *p++, ++n)
if (c == '?' && *n == '\0')
return FALSE;
if (c == '\0')
return TRUE;
c1 = tolower (c);
for (--p; *n != '\0'; ++n)
if (tolower (*n) == c1
&& pattern_match (p, n))
return TRUE;
return FALSE;
default:
if (c != tolower (*n))
return FALSE;
}
++n;
}
if (*n == '\0')
return TRUE;
return FALSE;
}
int CALLBACK
InnerEnumFontFamExProc (const LOGFONT *lfp,
const TEXTMETRIC *metrics,
DWORD fontType,
LPARAM lParam)
{
int size;
gchar *xlfd;
if (fontType == TRUETYPE_FONTTYPE)
{
size = 0;
}
else
{
size = lfp->lfHeight;
}
xlfd = logfont_to_xlfd (lfp, size, 0, 0);
if (!pattern_match ((gchar *) lParam, xlfd))
{
g_free (xlfd);
return 1;
}
num_fonts++;
if (num_fonts == font_names_size)
{
font_names_size *= 2;
xfontnames = g_realloc (xfontnames, font_names_size * sizeof (gchar *));
}
xfontnames[num_fonts-1] = xlfd;
return 1;
}
int CALLBACK
EnumFontFamExProc (const LOGFONT *lfp,
const TEXTMETRIC *metrics,
DWORD fontType,
LPARAM lParam)
{
if (fontType == TRUETYPE_FONTTYPE)
{
LOGFONT lf;
lf = *lfp;
EnumFontFamiliesEx (gdk_DC, &lf, InnerEnumFontFamExProc, lParam, 0);
}
else
InnerEnumFontFamExProc (lfp, metrics, fontType, lParam);
return 1;
}
gchar **
gdk_font_list_new (const gchar *font_pattern,
gint *n_returned)
{
LOGFONT logfont;
gchar **result;
num_fonts = 0;
font_names_size = 100;
xfontnames = g_new (gchar *, font_names_size);
memset (&logfont, 0, sizeof (logfont));
logfont.lfCharSet = DEFAULT_CHARSET;
EnumFontFamiliesEx (gdk_DC, &logfont, EnumFontFamExProc,
(LPARAM) font_pattern, 0);
result = g_new (gchar *, num_fonts + 1);
memmove (result, xfontnames, num_fonts * sizeof (gchar *));
result[num_fonts] = NULL;
g_free (xfontnames);
*n_returned = num_fonts;
return result;
}
void
gdk_font_list_free (gchar **font_list)
{
g_strfreev (font_list);
}
GdkWin32SingleFont*
gdk_font_load_internal (const gchar *font_name)
{
GdkWin32SingleFont *singlefont;
HFONT hfont;
LOGFONT logfont;
CHARSETINFO csi;
DWORD fdwItalic, fdwUnderline, fdwStrikeOut, fdwCharSet,
fdwOutputPrecision, fdwClipPrecision, fdwQuality, fdwPitchAndFamily;
const char *lpszFace;
int numfields, n1, n2, tries;
char foundry[32], family[100], weight[32], slant[32], set_width[32],
spacing[32], registry[32], encoding[32];
char pixel_size[10], point_size[10], res_x[10], res_y[10], avg_width[10];
int c;
char *p;
int nHeight, nWidth, nEscapement, nOrientation, fnWeight;
int logpixelsy;
g_return_val_if_fail (font_name != NULL, NULL);
GDK_NOTE (MISC, g_print ("gdk_font_load_internal: %s\n", font_name));
numfields = sscanf (font_name,
"-%30[^-]-%100[^-]-%30[^-]-%30[^-]-%30[^-]-%n",
foundry,
family,
weight,
slant,
set_width,
&n1);
if (numfields == 0)
{
/* Probably a plain Windows font name */
nHeight = 0;
nWidth = 0;
nEscapement = 0;
nOrientation = 0;
fnWeight = FW_DONTCARE;
fdwItalic = FALSE;
fdwUnderline = FALSE;
fdwStrikeOut = FALSE;
fdwCharSet = ANSI_CHARSET;
fdwOutputPrecision = OUT_TT_PRECIS;
fdwClipPrecision = CLIP_DEFAULT_PRECIS;
fdwQuality = PROOF_QUALITY;
fdwPitchAndFamily = DEFAULT_PITCH;
lpszFace = font_name;
}
else if (numfields != 5)
{
g_warning ("gdk_font_load: font name %s illegal", font_name);
return NULL;
}
else
{
/* It must be a XLFD name */
/* Check for hex escapes in the font family,
* put in there by gtkfontsel.
*/
p = family;
while (*p)
{
if (*p == '%' && isxdigit (p[1]) && isxdigit (p[2]))
{
sscanf (p+1, "%2x", &c);
*p = c;
strcpy (p+1, p+3);
}
p++;
}
/* Skip add_style which often is empty in the requested font name */
while (font_name[n1] && font_name[n1] != '-')
n1++;
numfields++;
numfields += sscanf (font_name + n1,
"-%8[^-]-%8[^-]-%8[^-]-%8[^-]-%30[^-]-%8[^-]-%30[^-]-%30[^-]%n",
pixel_size,
point_size,
res_x,
res_y,
spacing,
avg_width,
registry,
encoding,
&n2);
if (numfields != 14 || font_name[n1 + n2] != '\0')
{
g_warning ("gdk_font_load: font name %s illegal", font_name);
return NULL;
}
logpixelsy = GetDeviceCaps (gdk_DC, LOGPIXELSY);
if (strcmp (pixel_size, "*") == 0)
if (strcmp (point_size, "*") == 0)
nHeight = 0;
else
nHeight = (int) (((double) atoi (point_size))/720.*logpixelsy);
else
nHeight = atoi (pixel_size);
nWidth = 0;
nEscapement = 0;
nOrientation = 0;
if (g_strcasecmp (weight, "thin") == 0)
fnWeight = FW_THIN;
else if (g_strcasecmp (weight, "extralight") == 0)
fnWeight = FW_EXTRALIGHT;
else if (g_strcasecmp (weight, "ultralight") == 0)
#ifdef FW_ULTRALIGHT
fnWeight = FW_ULTRALIGHT;
#else
fnWeight = FW_EXTRALIGHT; /* In fact, FW_ULTRALIGHT really is
* defined as FW_EXTRALIGHT anyway.
*/
#endif
else if (g_strcasecmp (weight, "light") == 0)
fnWeight = FW_LIGHT;
else if (g_strcasecmp (weight, "normal") == 0)
fnWeight = FW_NORMAL;
else if (g_strcasecmp (weight, "regular") == 0)
fnWeight = FW_REGULAR;
else if (g_strcasecmp (weight, "medium") == 0)
fnWeight = FW_MEDIUM;
else if (g_strcasecmp (weight, "semibold") == 0)
fnWeight = FW_SEMIBOLD;
else if (g_strcasecmp (weight, "demibold") == 0)
#ifdef FW_DEMIBOLD
fnWeight = FW_DEMIBOLD;
#else
fnWeight = FW_SEMIBOLD; /* As above */
#endif
else if (g_strcasecmp (weight, "bold") == 0)
fnWeight = FW_BOLD;
else if (g_strcasecmp (weight, "extrabold") == 0)
fnWeight = FW_EXTRABOLD;
else if (g_strcasecmp (weight, "ultrabold") == 0)
#ifdef FW_ULTRABOLD
fnWeight = FW_ULTRABOLD;
#else
fnWeight = FW_EXTRABOLD; /* As above */
#endif
else if (g_strcasecmp (weight, "heavy") == 0)
fnWeight = FW_HEAVY;
else if (g_strcasecmp (weight, "black") == 0)
#ifdef FW_BLACK
fnWeight = FW_BLACK;
#else
fnWeight = FW_HEAVY; /* As above */
#endif
else
fnWeight = FW_DONTCARE;
if (g_strcasecmp (slant, "italic") == 0
|| g_strcasecmp (slant, "oblique") == 0
|| g_strcasecmp (slant, "i") == 0
|| g_strcasecmp (slant, "o") == 0)
fdwItalic = TRUE;
else
fdwItalic = FALSE;
fdwUnderline = FALSE;
fdwStrikeOut = FALSE;
if (g_strcasecmp (registry, "iso8859") == 0)
if (strcmp (encoding, "1") == 0)
fdwCharSet = ANSI_CHARSET;
else if (strcmp (encoding, "2") == 0)
fdwCharSet = EASTEUROPE_CHARSET;
else if (strcmp (encoding, "7") == 0)
fdwCharSet = GREEK_CHARSET;
else if (strcmp (encoding, "8") == 0)
fdwCharSet = HEBREW_CHARSET;
else if (strcmp (encoding, "9") == 0)
fdwCharSet = TURKISH_CHARSET;
else
fdwCharSet = ANSI_CHARSET; /* XXX ??? */
else if (g_strcasecmp (registry, "jisx0208.1983") == 0)
fdwCharSet = SHIFTJIS_CHARSET;
else if (g_strcasecmp (registry, "ksc5601.1987") == 0)
fdwCharSet = HANGEUL_CHARSET;
else if (g_strcasecmp (registry, "gb2312.1980") == 0)
fdwCharSet = GB2312_CHARSET;
else if (g_strcasecmp (registry, "big5") == 0)
fdwCharSet = CHINESEBIG5_CHARSET;
else if (g_strcasecmp (registry, "windows") == 0
|| g_strcasecmp (registry, "microsoft") == 0)
if (g_strcasecmp (encoding, "symbol") == 0)
fdwCharSet = SYMBOL_CHARSET;
else if (g_strcasecmp (encoding, "shiftjis") == 0)
fdwCharSet = SHIFTJIS_CHARSET;
else if (g_strcasecmp (encoding, "gb2312") == 0)
fdwCharSet = GB2312_CHARSET;
else if (g_strcasecmp (encoding, "hangeul") == 0)
fdwCharSet = HANGEUL_CHARSET;
else if (g_strcasecmp (encoding, "big5") == 0)
fdwCharSet = CHINESEBIG5_CHARSET;
else if (g_strcasecmp (encoding, "johab") == 0)
fdwCharSet = JOHAB_CHARSET;
else if (g_strcasecmp (encoding, "hebrew") == 0)
fdwCharSet = HEBREW_CHARSET;
else if (g_strcasecmp (encoding, "arabic") == 0)
fdwCharSet = ARABIC_CHARSET;
else if (g_strcasecmp (encoding, "greek") == 0)
fdwCharSet = GREEK_CHARSET;
else if (g_strcasecmp (encoding, "turkish") == 0)
fdwCharSet = TURKISH_CHARSET;
else if (g_strcasecmp (encoding, "easteurope") == 0)
fdwCharSet = EASTEUROPE_CHARSET;
else if (g_strcasecmp (encoding, "russian") == 0)
fdwCharSet = RUSSIAN_CHARSET;
else if (g_strcasecmp (encoding, "mac") == 0)
fdwCharSet = MAC_CHARSET;
else if (g_strcasecmp (encoding, "baltic") == 0)
fdwCharSet = BALTIC_CHARSET;
else if (g_strcasecmp (encoding, "cp1251") == 0)
fdwCharSet = RUSSIAN_CHARSET;
else
fdwCharSet = ANSI_CHARSET; /* XXX ??? */
else
fdwCharSet = ANSI_CHARSET; /* XXX ??? */
fdwOutputPrecision = OUT_TT_PRECIS;
fdwClipPrecision = CLIP_DEFAULT_PRECIS;
fdwQuality = PROOF_QUALITY;
if (g_strcasecmp (spacing, "m") == 0)
fdwPitchAndFamily = FIXED_PITCH;
else if (g_strcasecmp (spacing, "p") == 0)
fdwPitchAndFamily = VARIABLE_PITCH;
else
fdwPitchAndFamily = DEFAULT_PITCH;
lpszFace = family;
}
for (tries = 0; ; tries++)
{
GDK_NOTE (MISC, g_print ("...trying CreateFont(%d,%d,%d,%d,"
"%d,%d,%d,%d,"
"%d,%d,%d,"
"%d,%#.02x,\"%s\")\n",
nHeight, nWidth, nEscapement, nOrientation,
fnWeight, fdwItalic, fdwUnderline, fdwStrikeOut,
fdwCharSet, fdwOutputPrecision, fdwClipPrecision,
fdwQuality, fdwPitchAndFamily, lpszFace));
if ((hfont =
CreateFont (nHeight, nWidth, nEscapement, nOrientation,
fnWeight, fdwItalic, fdwUnderline, fdwStrikeOut,
fdwCharSet, fdwOutputPrecision, fdwClipPrecision,
fdwQuality, fdwPitchAndFamily, lpszFace)) != NULL)
break;
/* If we fail, try some similar fonts often found on Windows. */
if (tries == 0)
{
if (g_strcasecmp (family, "helvetica") == 0)
lpszFace = "arial";
else if (g_strcasecmp (family, "new century schoolbook") == 0)
lpszFace = "century schoolbook";
else if (g_strcasecmp (family, "courier") == 0)
lpszFace = "courier new";
else if (g_strcasecmp (family, "lucida") == 0)
lpszFace = "lucida sans unicode";
else if (g_strcasecmp (family, "lucidatypewriter") == 0)
lpszFace = "lucida console";
else if (g_strcasecmp (family, "times") == 0)
lpszFace = "times new roman";
}
else if (tries == 1)
{
if (g_strcasecmp (family, "courier") == 0)
{
lpszFace = "";
fdwPitchAndFamily |= FF_MODERN;
}
else if (g_strcasecmp (family, "times new roman") == 0)
{
lpszFace = "";
fdwPitchAndFamily |= FF_ROMAN;
}
else if (g_strcasecmp (family, "helvetica") == 0
|| g_strcasecmp (family, "lucida") == 0)
{
lpszFace = "";
fdwPitchAndFamily |= FF_SWISS;
}
else
{
lpszFace = "";
fdwPitchAndFamily = (fdwPitchAndFamily & 0x0F) | FF_DONTCARE;
}
}
else
break;
tries++;
}
if (!hfont)
return NULL;
singlefont = g_new (GdkWin32SingleFont, 1);
singlefont->xfont = hfont;
GetObject (singlefont->xfont, sizeof (logfont), &logfont);
TranslateCharsetInfo ((DWORD *) singlefont->charset, &csi, TCI_SRCCHARSET);
singlefont->codepage = csi.ciACP;
GetCPInfo (singlefont->codepage, &singlefont->cpinfo);
return singlefont;
}
GdkFont*
gdk_font_load (const gchar *font_name)
{
GdkFont *font;
GdkFontPrivate *private;
GdkWin32SingleFont *singlefont;
HGDIOBJ oldfont;
HANDLE *f;
TEXTMETRIC textmetric;
g_return_val_if_fail (font_name != NULL, NULL);
font = gdk_font_hash_lookup (GDK_FONT_FONTSET, font_name);
if (font)
return font;
singlefont = gdk_font_load_internal (font_name);
private = g_new (GdkFontPrivate, 1);
font = (GdkFont*) private;
private->ref_count = 1;
private->names = NULL;
private->fonts = g_slist_append (NULL, singlefont);
/* Pretend all fonts are fontsets... Gtktext and gtkentry work better
* that way, they use wide chars, which is necessary for non-ASCII
* chars to work. (Yes, even Latin-1, as we use Unicode internally.)
*/
font->type = GDK_FONT_FONTSET;
oldfont = SelectObject (gdk_DC, singlefont->xfont);
GetTextMetrics (gdk_DC, &textmetric);
singlefont->charset = GetTextCharsetInfo (gdk_DC, &singlefont->fs, 0);
SelectObject (gdk_DC, oldfont);
font->ascent = textmetric.tmAscent;
font->descent = textmetric.tmDescent;
GDK_NOTE (MISC, g_print ("... = %#x charset %s codepage %d "
"asc %d desc %d\n",
singlefont->xfont,
charset_name (singlefont->charset),
singlefont->codepage,
font->ascent, font->descent));
gdk_font_hash_insert (GDK_FONT_FONTSET, font, font_name);
return font;
}
GdkFont*
gdk_fontset_load (gchar *fontset_name)
{
GdkFont *font;
GdkFontPrivate *private;
GdkWin32SingleFont *singlefont;
HGDIOBJ oldfont;
HANDLE *f;
TEXTMETRIC textmetric;
GSList *base_font_list = NULL;
gchar *fs;
gchar *b, *p, *s;
g_return_val_if_fail (fontset_name != NULL, NULL);
font = gdk_font_hash_lookup (GDK_FONT_FONTSET, fontset_name);
if (font)
return font;
s = fs = g_strdup (fontset_name);
while (*s && isspace (*s))
s++;
g_return_val_if_fail (*s, NULL);
private = g_new (GdkFontPrivate, 1);
font = (GdkFont*) private;
private->ref_count = 1;
private->names = NULL;
private->fonts = NULL;
font->type = GDK_FONT_FONTSET;
font->ascent = 0;
font->descent = 0;
while (TRUE)
{
if ((p = strchr (s, ',')) != NULL)
b = p;
else
b = s + strlen (s);
while (isspace (b[-1]))
b--;
*b = '\0';
singlefont = gdk_font_load_internal (s);
if (singlefont)
{
GDK_NOTE
(MISC, g_print ("... = %#x charset %s codepage %d\n",
singlefont->xfont,
charset_name (singlefont->charset),
singlefont->codepage));
private->fonts = g_slist_append (private->fonts, singlefont);
oldfont = SelectObject (gdk_DC, singlefont->xfont);
GetTextMetrics (gdk_DC, &textmetric);
singlefont->charset =
GetTextCharsetInfo (gdk_DC, &singlefont->fs, 0);
SelectObject (gdk_DC, oldfont);
font->ascent = MAX (font->ascent, textmetric.tmAscent);
font->descent = MAX (font->descent, textmetric.tmDescent);
}
if (p)
{
s = p + 1;
while (*s && isspace (*s))
s++;
}
else
break;
if (!*s)
break;
}
g_free (fs);
gdk_font_hash_insert (GDK_FONT_FONTSET, font, fontset_name);
return font;
}
GdkFont*
gdk_font_ref (GdkFont *font)
{
GdkFontPrivate *private;
g_return_val_if_fail (font != NULL, NULL);
private = (GdkFontPrivate*) font;
private->ref_count += 1;
GDK_NOTE (MISC,
g_print ("gdk_font_ref %#x %d\n",
((GdkWin32SingleFont *) private->fonts->data)->xfont,
private->ref_count));
return font;
}
void
gdk_font_unref (GdkFont *font)
{
GdkFontPrivate *private;
GdkWin32SingleFont *singlefont;
GSList *list;
private = (GdkFontPrivate*) font;
g_return_if_fail (font != NULL);
g_return_if_fail (private->ref_count > 0);
private->ref_count -= 1;
singlefont = (GdkWin32SingleFont *) private->fonts->data;
GDK_NOTE (MISC, g_print ("gdk_font_unref %#x %d%s\n",
singlefont->xfont, private->ref_count,
(private->ref_count == 0 ? " freeing" : "")));
if (private->ref_count == 0)
{
gdk_font_hash_remove (font->type, font);
switch (font->type)
{
case GDK_FONT_FONT:
DeleteObject (singlefont->xfont);
break;
case GDK_FONT_FONTSET:
list = private->fonts;
while (list)
{
singlefont = (GdkWin32SingleFont *) list->data;
DeleteObject (singlefont->xfont);
list = list->next;
}
g_slist_free (private->fonts);
break;
default:
g_assert_not_reached ();
}
g_free (font);
}
}
gint
gdk_font_id (const GdkFont *font)
{
const GdkFontPrivate *font_private;
g_return_val_if_fail (font != NULL, 0);
font_private = (const GdkFontPrivate*) font;
if (font->type == GDK_FONT_FONT)
return (gint) ((GdkWin32SingleFont *) font_private->fonts->data)->xfont;
else
return 0;
}
gint
gdk_font_equal (const GdkFont *fonta,
const GdkFont *fontb)
{
const GdkFontPrivate *privatea;
const GdkFontPrivate *privateb;
g_return_val_if_fail (fonta != NULL, FALSE);
g_return_val_if_fail (fontb != NULL, FALSE);
privatea = (const GdkFontPrivate*) fonta;
privateb = (const GdkFontPrivate*) fontb;
if (fonta->type == GDK_FONT_FONT && fontb->type == GDK_FONT_FONT)
return (((GdkWin32SingleFont *) privatea->fonts->data)->xfont
== ((GdkWin32SingleFont *) privateb->fonts->data)->xfont);
else if (fonta->type == GDK_FONT_FONTSET && fontb->type == GDK_FONT_FONTSET)
{
GSList *lista = privatea->fonts;
GSList *listb = privateb->fonts;
while (lista && listb)
{
if (((GdkWin32SingleFont *) lista->data)->xfont
!= ((GdkWin32SingleFont *) listb->data)->xfont)
return 0;
lista = lista->next;
listb = listb->next;
}
if (lista || listb)
return 0;
else
return 1;
}
else
return 0;
}
gint
gdk_string_width (GdkFont *font,
const gchar *string)
{
return gdk_text_width (font, string, strlen (string));
}
/* This table classifies Unicode characters according to the Microsoft
* Unicode subset numbering. This is from the table in "Developing
* International Software for Windows 95 and Windows NT". This is almost,
* but not quite, the same as the official Unicode block table in
* Blocks.txt from ftp.unicode.org. The bit number field is the bitfield
* number as in the FONTSIGNATURE struct's fsUsb field.
*/
static struct {
wchar_t low, high;
guint bit;
gchar *name;
} utab[] =
{
{ 0x0000, 0x007E, 0, "Basic Latin" },
{ 0x00A0, 0x00FF, 1, "Latin-1 Supplement" },
{ 0x0100, 0x017F, 2, "Latin Extended-A" },
{ 0x0180, 0x024F, 3, "Latin Extended-B" },
{ 0x0250, 0x02AF, 4, "IPA Extensions" },
{ 0x02B0, 0x02FF, 5, "Spacing Modifier Letters" },
{ 0x0300, 0x036F, 6, "Combining Diacritical Marks" },
{ 0x0370, 0x03CF, 7, "Basic Greek" },
{ 0x03D0, 0x03FF, 8, "Greek Symbols and Coptic" },
{ 0x0400, 0x04FF, 9, "Cyrillic" },
{ 0x0530, 0x058F, 10, "Armenian" },
{ 0x0590, 0x05CF, 12, "Hebrew Extended" },
{ 0x05D0, 0x05FF, 11, "Basic Hebrew" },
{ 0x0600, 0x0652, 13, "Basic Arabic" },
{ 0x0653, 0x06FF, 14, "Arabic Extended" },
{ 0x0900, 0x097F, 15, "Devanagari" },
{ 0x0980, 0x09FF, 16, "Bengali" },
{ 0x0A00, 0x0A7F, 17, "Gurmukhi" },
{ 0x0A80, 0x0AFF, 18, "Gujarati" },
{ 0x0B00, 0x0B7F, 19, "Oriya" },
{ 0x0B80, 0x0BFF, 20, "Tamil" },
{ 0x0C00, 0x0C7F, 21, "Telugu" },
{ 0x0C80, 0x0CFF, 22, "Kannada" },
{ 0x0D00, 0x0D7F, 23, "Malayalam" },
{ 0x0E00, 0x0E7F, 24, "Thai" },
{ 0x0E80, 0x0EFF, 25, "Lao" },
{ 0x10A0, 0x10CF, 27, "Georgian Extended" },
{ 0x10D0, 0x10FF, 26, "Basic Georgian" },
{ 0x1100, 0x11FF, 28, "Hangul Jamo" },
{ 0x1E00, 0x1EFF, 29, "Latin Extended Additional" },
{ 0x1F00, 0x1FFF, 30, "Greek Extended" },
{ 0x2000, 0x206F, 31, "General Punctuation" },
{ 0x2070, 0x209F, 32, "Superscripts and Subscripts" },
{ 0x20A0, 0x20CF, 33, "Currency Symbols" },
{ 0x20D0, 0x20FF, 34, "Combining Diacritical Marks for Symbols" },
{ 0x2100, 0x214F, 35, "Letterlike Symbols" },
{ 0x2150, 0x218F, 36, "Number Forms" },
{ 0x2190, 0x21FF, 37, "Arrows" },
{ 0x2200, 0x22FF, 38, "Mathematical Operators" },
{ 0x2300, 0x23FF, 39, "Miscellaneous Technical" },
{ 0x2400, 0x243F, 40, "Control Pictures" },
{ 0x2440, 0x245F, 41, "Optical Character Recognition" },
{ 0x2460, 0x24FF, 42, "Enclosed Alphanumerics" },
{ 0x2500, 0x257F, 43, "Box Drawing" },
{ 0x2580, 0x259F, 44, "Block Elements" },
{ 0x25A0, 0x25FF, 45, "Geometric Shapes" },
{ 0x2600, 0x26FF, 46, "Miscellaneous Symbols" },
{ 0x2700, 0x27BF, 47, "Dingbats" },
{ 0x3000, 0x303F, 48, "CJK Symbols and Punctuation" },
{ 0x3040, 0x309F, 49, "Hiragana" },
{ 0x30A0, 0x30FF, 50, "Katakana" },
{ 0x3100, 0x312F, 51, "Bopomofo" },
{ 0x3130, 0x318F, 52, "Hangul Compatibility Jamo" },
{ 0x3190, 0x319F, 53, "CJK Miscellaneous" },
{ 0x3200, 0x32FF, 54, "Enclosed CJK" },
{ 0x3300, 0x33FF, 55, "CJK Compatibility" },
{ 0x3400, 0x3D2D, 56, "Hangul" },
{ 0x3D2E, 0x44B7, 57, "Hangul Supplementary-A" },
{ 0x44B8, 0x4DFF, 58, "Hangul Supplementary-B" },
{ 0x4E00, 0x9FFF, 59, "CJK Unified Ideographs" },
{ 0xE000, 0xF8FF, 60, "Private Use Area" },
{ 0xF900, 0xFAFF, 61, "CJK Compatibility Ideographs" },
{ 0xFB00, 0xFB4F, 62, "Alphabetic Presentation Forms" },
{ 0xFB50, 0xFDFF, 63, "Arabic Presentation Forms-A" },
{ 0xFE20, 0xFE2F, 64, "Combining Half Marks" },
{ 0xFE30, 0xFE4F, 65, "CJK Compatibility Forms" },
{ 0xFE50, 0xFE6F, 66, "Small Form Variants" },
{ 0xFE70, 0xFEFE, 67, "Arabic Presentation Forms-B" },
{ 0xFEFF, 0xFEFF, 69, "Specials" },
{ 0xFF00, 0xFFEF, 68, "Halfwidth and Fullwidth Forms" },
{ 0xFFF0, 0xFFFD, 69, "Specials" }
};
/* Return the Unicode Subset bitfield number for a Unicode character */
static int
unicode_classify (wchar_t wc)
{
int min = 0;
int max = sizeof (utab) / sizeof (utab[0]) - 1;
int mid;
while (max >= min)
{
mid = (min + max) / 2;
if (utab[mid].high < wc)
min = mid + 1;
else if (wc < utab[mid].low)
max = mid - 1;
else if (utab[mid].low <= wc && wc <= utab[mid].high)
return utab[mid].bit;
else
return -1;
}
}
void
gdk_wchar_text_handle (GdkFont *font,
const wchar_t *wcstr,
int wclen,
void (*handler)(GdkWin32SingleFont *,
const wchar_t *,
int,
void *),
void *arg)
{
GdkFontPrivate *private;
GdkWin32SingleFont *singlefont;
GSList *list;
int i, block;
const wchar_t *start, *end, *wcp;
wcp = wcstr;
end = wcp + wclen;
private = (GdkFontPrivate *) font;
g_assert (private->ref_count > 0);
while (wcp < end)
{
/* Split Unicode string into pieces of the same class */
start = wcp;
block = unicode_classify (*wcp);
while (wcp + 1 < end && unicode_classify (wcp[1]) == block)
wcp++;
/* Find a font in the fontset that can handle this class */
list = private->fonts;
while (list)
{
singlefont = (GdkWin32SingleFont *) list->data;
if (singlefont->fs.fsUsb[block/32] & (1 << (block % 32)))
break;
list = list->next;
}
if (!list)
singlefont = NULL;
/* Call the callback function */
(*handler) (singlefont, start, wcp+1 - start, arg);
wcp++;
}
}
typedef struct
{
SIZE total;
SIZE max;
} gdk_text_size_arg;
static void
gdk_text_size_handler (GdkWin32SingleFont *singlefont,
const wchar_t *wcstr,
int wclen,
void *argp)
{
SIZE this_size;
HGDIOBJ oldfont;
gdk_text_size_arg *arg = (gdk_text_size_arg *) argp;
if (!singlefont)
return;
if ((oldfont = SelectObject (gdk_DC, singlefont->xfont)) == NULL)
{
g_warning ("gdk_text_size_handler: SelectObject failed");
return;
}
GetTextExtentPoint32W (gdk_DC, wcstr, wclen, &this_size);
SelectObject (gdk_DC, oldfont);
arg->total.cx += this_size.cx;
arg->total.cy += this_size.cy;
arg->max.cx = MAX (this_size.cx, arg->max.cx);
arg->max.cy = MAX (this_size.cy, arg->max.cy);
}
static gboolean
gdk_text_size (GdkFont *font,
const gchar *text,
gint text_length,
gdk_text_size_arg *arg)
{
gint wlen;
wchar_t *wcstr;
g_return_val_if_fail (font != NULL, FALSE);
g_return_val_if_fail (text != NULL, FALSE);
if (text_length == 0)
return 0;
g_assert (font->type == GDK_FONT_FONT || font->type == GDK_FONT_FONTSET);
wcstr = g_new (wchar_t, text_length);
if ((wlen = gdk_nmbstowchar_ts (wcstr, text, text_length, text_length)) == -1)
g_warning ("gdk_text_size: gdk_nmbstowchar_ts failed");
else
gdk_wchar_text_handle (font, wcstr, wlen, gdk_text_size_handler, arg);
g_free (wcstr);
return TRUE;
}
gint
gdk_text_width (GdkFont *font,
const gchar *text,
gint text_length)
{
gdk_text_size_arg arg;
arg.total.cx = arg.total.cy = 0;
arg.max.cx = arg.max.cy = 0;
if (!gdk_text_size (font, text, text_length, &arg))
return -1;
return arg.total.cx;
}
gint
gdk_text_width_wc (GdkFont *font,
const GdkWChar *text,
gint text_length)
{
gdk_text_size_arg arg;
wchar_t *wcstr;
gint i;
g_return_val_if_fail (font != NULL, -1);
g_return_val_if_fail (text != NULL, -1);
if (text_length == 0)
return 0;
g_assert (font->type == GDK_FONT_FONT || font->type == GDK_FONT_FONTSET);
if (sizeof (wchar_t) != sizeof (GdkWChar))
{
wcstr = g_new (wchar_t, text_length);
for (i = 0; i < text_length; i++)
wcstr[i] = text[i];
}
else
wcstr = (wchar_t *) text;
arg.total.cx = arg.total.cy = 0;
arg.max.cx = arg.max.cy = 0;
gdk_wchar_text_handle (font, wcstr, text_length,
gdk_text_size_handler, &arg);
if (sizeof (wchar_t) != sizeof (GdkWChar))
g_free (wcstr);
return arg.total.cx;
}
gint
gdk_char_width (GdkFont *font,
gchar character)
{
if (((guchar) character) >= 128)
{
/* gtktext calls us with non-ASCII characters, sigh */
GdkWChar wc = (guchar) character;
return gdk_text_width_wc (font, &wc, 1);
}
return gdk_text_width (font, &character, 1);
}
gint
gdk_char_width_wc (GdkFont *font,
GdkWChar character)
{
return gdk_text_width_wc (font, &character, 1);
}
gint
gdk_string_measure (GdkFont *font,
const gchar *string)
{
g_return_val_if_fail (font != NULL, -1);
g_return_val_if_fail (string != NULL, -1);
return gdk_text_measure (font, string, strlen (string));
}
void
gdk_text_extents (GdkFont *font,
const gchar *text,
gint text_length,
gint *lbearing,
gint *rbearing,
gint *width,
gint *ascent,
gint *descent)
{
gdk_text_size_arg arg;
gint wlen;
wchar_t *wcstr;
g_return_if_fail (font != NULL);
g_return_if_fail (text != NULL);
if (text_length == 0)
{
if (lbearing)
*lbearing = 0;
if (rbearing)
*rbearing = 0;
if (width)
*width = 0;
if (ascent)
*ascent = 0;
if (descent)
*descent = 0;
return;
}
g_assert (font->type == GDK_FONT_FONT || font->type == GDK_FONT_FONTSET);
arg.total.cx = arg.total.cy = 0;
arg.max.cx = arg.max.cy = 0;
wcstr = g_new (wchar_t, text_length);
if ((wlen = gdk_nmbstowchar_ts (wcstr, text, text_length, text_length)) == -1)
g_warning ("gdk_text_extents: gdk_nmbstowchar_ts failed");
else
gdk_wchar_text_handle (font, wcstr, wlen, gdk_text_size_handler, &arg);
g_free (wcstr);
/* XXX This is quite bogus */
if (lbearing)
*lbearing = 0;
if (rbearing)
*rbearing = 0;
if (width)
*width = arg.total.cx;
if (ascent)
*ascent = arg.max.cy + 1;
if (descent)
*descent = font->descent + 1;
}
void
gdk_text_extents_wc (GdkFont *font,
const GdkWChar *text,
gint text_length,
gint *lbearing,
gint *rbearing,
gint *width,
gint *ascent,
gint *descent)
{
gdk_text_size_arg arg;
wchar_t *wcstr;
gint i;
g_return_if_fail (font != NULL);
g_return_if_fail (text != NULL);
if (text_length == 0)
{
if (lbearing)
*lbearing = 0;
if (rbearing)
*rbearing = 0;
if (width)
*width = 0;
if (ascent)
*ascent = 0;
if (descent)
*descent = 0;
return;
}
g_assert (font->type == GDK_FONT_FONT || font->type == GDK_FONT_FONTSET);
if (sizeof (wchar_t) != sizeof (GdkWChar))
{
wcstr = g_new (wchar_t, text_length);
for (i = 0; i < text_length; i++)
wcstr[i] = text[i];
}
else
wcstr = (wchar_t *) text;
arg.total.cx = arg.total.cy = 0;
arg.max.cx = arg.max.cy = 0;
gdk_wchar_text_handle (font, wcstr, text_length,
gdk_text_size_handler, &arg);
if (sizeof (wchar_t) != sizeof (GdkWChar))
g_free (wcstr);
/* XXX This is quite bogus */
if (lbearing)
*lbearing = 0;
if (rbearing)
*rbearing = 0;
if (width)
*width = arg.total.cx;
if (ascent)
*ascent = arg.max.cy + 1;
if (descent)
*descent = font->descent + 1;
}
void
gdk_string_extents (GdkFont *font,
const gchar *string,
gint *lbearing,
gint *rbearing,
gint *width,
gint *ascent,
gint *descent)
{
g_return_if_fail (font != NULL);
g_return_if_fail (string != NULL);
gdk_text_extents (font, string, strlen (string),
lbearing, rbearing, width, ascent, descent);
}
gint
gdk_text_measure (GdkFont *font,
const gchar *text,
gint text_length)
{
return gdk_text_width (font, text, text_length); /* ??? */
}
gint
gdk_char_measure (GdkFont *font,
gchar character)
{
return gdk_text_measure (font, &character, 1);
}
gint
gdk_string_height (GdkFont *font,
const gchar *string)
{
g_return_val_if_fail (font != NULL, -1);
g_return_val_if_fail (string != NULL, -1);
return gdk_text_height (font, string, strlen (string));
}
gint
gdk_text_height (GdkFont *font,
const gchar *text,
gint text_length)
{
gdk_text_size_arg arg;
arg.total.cx = arg.total.cy = 0;
arg.max.cx = arg.max.cy = 0;
if (!gdk_text_size (font, text, text_length, &arg))
return -1;
return arg.max.cy;
}
gint
gdk_char_height (GdkFont *font,
gchar character)
{
return gdk_text_height (font, &character, 1);
}
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