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[win32] Use pango_win32_font_description_from_logfontw() to get
the system font, instead of the code duplication.
This commit is contained in:
Martin Schlemmer
Fridrich Štrba
parent
78d120e299
commit
e822af1d98
@ -30,6 +30,9 @@
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* http://msdn.microsoft.com/library/default.asp?url=/library/en-us/gdi/pantdraw_4b3g.asp
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*/
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/* Include first, else we get redefinition warnings about STRICT */
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#include "pango/pangowin32.h"
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#include "msw_style.h"
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#include "xp_theme.h"
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@ -172,24 +175,22 @@ static struct
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};
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static gboolean
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get_system_font (XpThemeClass klazz, XpThemeFont type, LOGFONT *out_lf)
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get_system_font (XpThemeClass klazz, XpThemeFont type, LOGFONTW *out_lf)
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{
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#if 0
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/* TODO: this causes crashes later because the font name is in UCS2, and
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the pango fns don't deal with that gracefully */
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if (xp_theme_get_system_font (klazz, type, out_lf))
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{
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return TRUE;
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}
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else
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#endif
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{
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NONCLIENTMETRICS ncm;
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/* Use wide char versions here, as the theming functions only support
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* wide chars versions of the structures. */
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NONCLIENTMETRICSW ncm;
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ncm.cbSize = sizeof (NONCLIENTMETRICS);
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ncm.cbSize = sizeof (NONCLIENTMETRICSW);
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if (SystemParametersInfo (SPI_GETNONCLIENTMETRICS,
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sizeof (NONCLIENTMETRICS), &ncm, 0))
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if (SystemParametersInfoW (SPI_GETNONCLIENTMETRICS,
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sizeof (NONCLIENTMETRICSW), &ncm, 0))
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{
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if (type == XP_THEME_FONT_CAPTION)
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*out_lf = ncm.lfCaptionFont;
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@ -207,312 +208,56 @@ get_system_font (XpThemeClass klazz, XpThemeFont type, LOGFONT *out_lf)
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return FALSE;
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}
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/***************************** BEGIN STOLEN FROM PANGO *****************************/
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/*
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This code is stolen from Pango 1.4. It attempts to address the following problems:
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http://bugzilla.gnome.org/show_bug.cgi?id=135098
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http://sourceforge.net/tracker/index.php?func=detail&aid=895762&group_id=76416&atid=547655
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As Owen suggested in bug 135098, once Pango 1.6 is released, we need to get rid of this code.
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*/
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#define PING(printlist)
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/* TrueType defines: */
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#define MAKE_TT_TABLE_NAME(c1, c2, c3, c4) \
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(((guint32)c4) << 24 | ((guint32)c3) << 16 | ((guint32)c2) << 8 | ((guint32)c1))
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#define CMAP (MAKE_TT_TABLE_NAME('c','m','a','p'))
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#define CMAP_HEADER_SIZE 4
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#define NAME (MAKE_TT_TABLE_NAME('n','a','m','e'))
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#define NAME_HEADER_SIZE 6
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#define ENCODING_TABLE_SIZE 8
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#define APPLE_UNICODE_PLATFORM_ID 0
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#define MACINTOSH_PLATFORM_ID 1
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#define ISO_PLATFORM_ID 2
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#define MICROSOFT_PLATFORM_ID 3
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#define SYMBOL_ENCODING_ID 0
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#define UNICODE_ENCODING_ID 1
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#define UCS4_ENCODING_ID 10
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struct name_header
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{
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guint16 format_selector;
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guint16 num_records;
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guint16 string_storage_offset;
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};
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struct name_record
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{
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guint16 platform_id;
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guint16 encoding_id;
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guint16 language_id;
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guint16 name_id;
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guint16 string_length;
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guint16 string_offset;
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};
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static gboolean
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pango_win32_get_name_header (HDC hdc, struct name_header *header)
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{
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if (GetFontData (hdc, NAME, 0, header, sizeof (*header)) != sizeof (*header))
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return FALSE;
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header->num_records = GUINT16_FROM_BE (header->num_records);
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header->string_storage_offset = GUINT16_FROM_BE (header->string_storage_offset);
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return TRUE;
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}
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static gboolean
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pango_win32_get_name_record (HDC hdc, gint i, struct name_record *record)
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{
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if (GetFontData (hdc, NAME, 6 + i * sizeof (*record),
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record, sizeof (*record)) != sizeof (*record))
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{
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return FALSE;
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}
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record->platform_id = GUINT16_FROM_BE (record->platform_id);
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record->encoding_id = GUINT16_FROM_BE (record->encoding_id);
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record->language_id = GUINT16_FROM_BE (record->language_id);
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record->name_id = GUINT16_FROM_BE (record->name_id);
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record->string_length = GUINT16_FROM_BE (record->string_length);
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record->string_offset = GUINT16_FROM_BE (record->string_offset);
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return TRUE;
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}
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static gchar *
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get_family_name (LOGFONT *lfp, HDC pango_win32_hdc)
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{
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HFONT hfont;
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HFONT oldhfont;
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struct name_header header;
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struct name_record record;
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gint unicode_ix = -1, mac_ix = -1, microsoft_ix = -1;
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gint name_ix;
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gchar *codeset;
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gchar *string = NULL;
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gchar *name;
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size_t i, l, nbytes;
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/* If lfFaceName is ASCII, assume it is the common (English) name for the
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font. Is this valid? Do some TrueType fonts have different names in
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French, German, etc, and does the system return these if the locale is
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set to use French, German, etc? */
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l = strlen (lfp->lfFaceName);
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for (i = 0; i < l; i++)
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{
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if (lfp->lfFaceName[i] < ' ' || lfp->lfFaceName[i] > '~')
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{
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break;
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}
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}
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if (i == l)
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return g_strdup (lfp->lfFaceName);
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if ((hfont = CreateFontIndirect (lfp)) == NULL)
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goto fail0;
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if ((oldhfont = (HFONT) SelectObject (pango_win32_hdc, hfont)) == NULL)
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goto fail1;
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if (!pango_win32_get_name_header (pango_win32_hdc, &header))
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goto fail2;
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PING (("%d name records", header.num_records));
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for (i = 0; i < header.num_records; i++)
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{
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if (!pango_win32_get_name_record (pango_win32_hdc, i, &record))
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goto fail2;
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if ((record.name_id != 1 && record.name_id != 16) || record.string_length <= 0)
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continue;
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PING (("platform:%d encoding:%d language:%04x name_id:%d",
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record.platform_id, record.encoding_id, record.language_id,
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record.name_id));
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if (record.platform_id == APPLE_UNICODE_PLATFORM_ID ||
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record.platform_id == ISO_PLATFORM_ID)
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{
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unicode_ix = i;
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}
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else if (record.platform_id == MACINTOSH_PLATFORM_ID && record.encoding_id == 0 && /* Roman
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*/
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record.language_id == 0) /* English */
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{
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mac_ix = i;
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}
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else if (record.platform_id == MICROSOFT_PLATFORM_ID)
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{
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if ((microsoft_ix == -1 ||
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PRIMARYLANGID (record.language_id) == LANG_ENGLISH) &&
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(record.encoding_id == SYMBOL_ENCODING_ID ||
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record.encoding_id == UNICODE_ENCODING_ID ||
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record.encoding_id == UCS4_ENCODING_ID))
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{
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microsoft_ix = i;
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}
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}
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}
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if (microsoft_ix >= 0)
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name_ix = microsoft_ix;
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else if (mac_ix >= 0)
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name_ix = mac_ix;
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else if (unicode_ix >= 0)
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name_ix = unicode_ix;
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else
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goto fail2;
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if (!pango_win32_get_name_record (pango_win32_hdc, name_ix, &record))
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goto fail2;
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string = g_malloc (record.string_length + 1);
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if (GetFontData (pango_win32_hdc, NAME,
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header.string_storage_offset + record.string_offset,
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string, record.string_length) != record.string_length)
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goto fail2;
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string[record.string_length] = '\0';
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if (name_ix == microsoft_ix)
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{
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if (record.encoding_id == SYMBOL_ENCODING_ID ||
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record.encoding_id == UNICODE_ENCODING_ID)
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{
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codeset = "UTF-16BE";
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}
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else
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{
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codeset = "UCS-4BE";
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}
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}
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else if (name_ix == mac_ix)
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{
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codeset = "MacRoman";
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}
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else /* name_ix == unicode_ix */
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{
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codeset = "UCS-4BE";
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}
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name = g_convert (string, record.string_length, "UTF-8", codeset, NULL,
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&nbytes, NULL);
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if (name == NULL)
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goto fail2;
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g_free (string);
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PING (("%s", name));
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SelectObject (pango_win32_hdc, oldhfont);
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DeleteObject (hfont);
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return name;
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fail2:
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g_free (string);
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SelectObject (pango_win32_hdc, oldhfont);
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fail1:
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DeleteObject (hfont);
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fail0:
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return g_locale_to_utf8 (lfp->lfFaceName, -1, NULL, NULL, NULL);
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}
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/***************************** END STOLEN FROM PANGO *****************************/
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static char *
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sys_font_to_pango_font (XpThemeClass klazz, XpThemeFont type, char *buf,
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size_t bufsiz)
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{
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HDC hDC;
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HWND hwnd;
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LOGFONT lf;
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int pt_size;
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const char *weight;
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const char *style;
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char *font;
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LOGFONTW lf;
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if (get_system_font (klazz, type, &lf))
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{
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switch (lf.lfWeight)
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{
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case FW_THIN:
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case FW_EXTRALIGHT:
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weight = "Ultra-Light";
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break;
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PangoFontDescription *desc = NULL;
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int pt_size;
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const char *font;
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case FW_LIGHT:
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weight = "Light";
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break;
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case FW_BOLD:
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weight = "Bold";
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break;
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case FW_SEMIBOLD:
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weight = "Semi-Bold";
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break;
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case FW_ULTRABOLD:
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weight = "Ultra-Bold";
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break;
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case FW_HEAVY:
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weight = "Heavy";
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break;
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default:
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weight = "";
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break;
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}
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if (lf.lfItalic)
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style = "Italic";
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else
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style = "";
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hwnd = GetDesktopWindow ();
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hDC = GetDC (hwnd);
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if (hDC)
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{
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pt_size = -MulDiv (lf.lfHeight, 72,
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GetDeviceCaps (hDC, LOGPIXELSY));
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}
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else
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{
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pt_size = 10;
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}
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font = get_family_name (&lf, hDC);
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if (hDC)
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ReleaseDC (hwnd, hDC);
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if (!(font && *font))
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desc = pango_win32_font_description_from_logfontw (&lf);
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if (!desc)
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return NULL;
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g_snprintf (buf, bufsiz, "%s %s %s %d", font, style, weight, pt_size);
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g_free (font);
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font = pango_font_description_to_string (desc);
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pt_size = pango_font_description_get_size (desc);
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if (!(font && *font))
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{
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pango_font_description_free (desc);
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return NULL;
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}
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if (pt_size == 0)
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{
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HDC hDC;
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HWND hwnd;
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hwnd = GetDesktopWindow ();
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hDC = GetDC (hwnd);
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if (hDC)
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pt_size = -MulDiv (lf.lfHeight, 72, GetDeviceCaps (hDC, LOGPIXELSY));
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else
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pt_size = 10;
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if (hDC)
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ReleaseDC (hwnd, hDC);
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g_snprintf (buf, bufsiz, "%s %d", font, pt_size);
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}
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else
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{
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g_snprintf (buf, bufsiz, "%s", font);
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}
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if (desc)
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pango_font_description_free (desc);
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return buf;
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}
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