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Implemented enumerating fixed font. It's a compromise...

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_4_BRANCH@19208 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Robert Roebling
2003-02-13 16:45:52 +00:00
parent e7a96246fa
commit 13166ef936
1 changed files with 84 additions and 23 deletions
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107
src/unix/fontenum.cpp
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@@ -47,44 +47,105 @@ extern GtkWidget *wxGetRootWindow();
static int
cmp_families (const void *a, const void *b)
{
const char *a_name = pango_font_family_get_name (*(PangoFontFamily **)a);
const char *b_name = pango_font_family_get_name (*(PangoFontFamily **)b);
const char *a_name = pango_font_family_get_name (*(PangoFontFamily **)a);
const char *b_name = pango_font_family_get_name (*(PangoFontFamily **)b);
return g_utf8_collate (a_name, b_name);
return g_utf8_collate (a_name, b_name);
}
static PangoLanguage *font_test_language;
static gboolean font_is_latin( PangoContext *context, PangoFontDescription *desc )
{
PangoFont *font = pango_context_load_font( context, desc );
if (!font) return FALSE;
font_test_language = pango_language_from_string( "eng" );
PangoCoverage *coverage =pango_font_get_coverage( font, font_test_language );
if (!coverage) return FALSE;
if ((pango_coverage_get(coverage, 'i') == PANGO_COVERAGE_EXACT) &&
(pango_coverage_get(coverage, 'W') == PANGO_COVERAGE_EXACT))
{
return TRUE;
}
return FALSE;
}
// I admit I don't yet understand encodings with Pango
bool wxFontEnumerator::EnumerateFacenames(wxFontEncoding encoding,
bool fixedWidthOnly)
{
if ( fixedWidthOnly )
{
OnFacename( wxT("monospace") );
}
else
{
PangoFontFamily **families = NULL;
gint n_families = 0;
pango_context_list_families (
PangoContext *context =
#ifdef __WXGTK20__
gtk_widget_get_pango_context( wxGetRootWindow() ),
gtk_widget_get_pango_context( wxGetRootWindow() );
#else
wxTheApp->GetPangoContext(),
wxTheApp->GetPangoContext();
#endif
&families, &n_families );
qsort (families, n_families, sizeof (PangoFontFamily *), cmp_families);
PangoFontFamily **families = NULL;
gint n_families = 0;
pango_context_list_families( context, &families, &n_families );
qsort (families, n_families, sizeof (PangoFontFamily *), cmp_families);
for (int i=0; i<n_families; i++)
{
const gchar *name = pango_font_family_get_name( families[i] );
for (int i=0; i<n_families; i++)
{
const gchar *name = pango_font_family_get_name( families[i] );
wxString tmp( name, wxConvUTF8 );
OnFacename( tmp );
if (fixedWidthOnly)
{
if (
(strstr( name, "mono") == NULL) &&
(strstr( name, "Mono") == NULL) &&
(strstr( name, "MONO") == NULL) &&
(strstr( name, "fixed") == NULL) &&
(strstr( name, "Fixed") == NULL) &&
(strstr( name, "FIXED") == NULL) &&
(strstr( name, "terminal") == NULL) &&
(strstr( name, "Terminal") == NULL) &&
(strstr( name, "TERMINAL") == NULL) &&
(strstr( name, "cour") == NULL) &&
(strstr( name, "Cour") == NULL) &&
(strstr( name, "COUR") == NULL)
)
{
continue;
}
PangoFontDescription *desc = pango_font_description_new();
pango_font_description_set_family( desc, name );
pango_font_description_set_size( desc, 12 * PANGO_SCALE );
if (!font_is_latin( context, desc))
{
pango_font_description_free( desc );
continue;
}
PangoLayout *layout = pango_layout_new(context);
pango_layout_set_font_description(layout, desc);
pango_layout_set_text(layout, "i", 1 );
int i_width = 0;
pango_layout_get_size(layout, &i_width, NULL);
pango_layout_set_text(layout, "W", 1 );
int W_width = 0;
pango_layout_get_size(layout, &W_width, NULL);
g_object_unref( G_OBJECT( layout ) );
pango_font_description_free( desc );
if (W_width != i_width) continue;
if (i_width == 0) continue;
}
wxString tmp( name, wxConvUTF8 );
OnFacename( tmp );
}
return TRUE;
}
}
bool wxFontEnumerator::EnumerateEncodings(const wxString& family)
{