+/////////////////////////////////////////////////////////////////////////////
+// Name: src/unix/fontenum.cpp
+// Purpose: wxFontEnumerator class for X11/GDK
+// Author: Vadim Zeitlin
+// Modified by:
+// Created: 01.10.99
+// RCS-ID: $Id$
+// Copyright: (c) Vadim Zeitlin
+// Licence: wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+// ============================================================================
+// declarations
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+
+#ifdef __GNUG__
+ #pragma implementation "fontenum.h"
+#endif
+
+#include "wx/defs.h"
+#include "wx/dynarray.h"
+#include "wx/string.h"
+#include "wx/utils.h"
+
+#include "wx/fontenum.h"
+
+#include <X11/Xlib.h>
+
+// ----------------------------------------------------------------------------
+// private functions
+// ----------------------------------------------------------------------------
+
+// create the list of all fonts with the given spacing
+static char **CreateFontList(wxChar spacing, int *nFonts);
+
+// extract all font families from the given font list and call our
+// OnFontFamily() for each of them
+static bool ProcessFamiliesFromFontList(wxFontEnumerator *This,
+ char **fonts,
+ int nFonts);
+
+
+// ----------------------------------------------------------------------------
+// private types
+// ----------------------------------------------------------------------------
+
+// ============================================================================
+// implementation
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// helpers
+// ----------------------------------------------------------------------------
+
+static char **CreateFontList(wxChar spacing, int *nFonts)
+{
+ wxString pattern;
+ pattern.Printf(wxT("-*-*-*-*-*-*-*-*-*-*-%c-*-*-*"), spacing);
+
+ // get the list of all fonts
+ return XListFonts((Display *)wxGetDisplay(), pattern, 32767, nFonts);
+}
+
+static bool ProcessFamiliesFromFontList(wxFontEnumerator *This,
+ char **fonts,
+ int nFonts)
+{
+ // extract the list of (unique) font families
+ wxSortedArrayString families;
+ for ( int n = 0; n < nFonts; n++ )
+ {
+ char *font = fonts[n];
+ if ( !wxString(font).Matches("-*-*-*-*-*-*-*-*-*-*-*-*-*-*") )
+ {
+ // it's not a full font name (probably an alias)
+ continue;
+ }
+
+ char *dash = strchr(font + 1, '-');
+ char *family = dash + 1;
+ dash = strchr(family, '-');
+ *dash = '\0'; // !NULL because Matches() above succeeded
+
+ if ( families.Index(family) == wxNOT_FOUND )
+ {
+ if ( !This->OnFontFamily(family) )
+ {
+ // stop enumerating
+ return FALSE;
+ }
+
+ families.Add(family);
+ }
+ //else: already seen
+ }
+
+ return TRUE;
+}
+
+// ----------------------------------------------------------------------------
+// wxFontEnumerator
+// ----------------------------------------------------------------------------
+
+bool wxFontEnumerator::EnumerateFamilies(bool fixedWidthOnly)
+{
+ int nFonts;
+ char **fonts;
+
+ if ( fixedWidthOnly )
+ {
+ bool cont = TRUE;
+ fonts = CreateFontList(wxT('m'), &nFonts);
+ if ( fonts )
+ {
+ cont = ProcessFamiliesFromFontList(this, fonts, nFonts);
+
+ XFreeFontNames(fonts);
+ }
+
+ if ( !cont )
+ {
+ return TRUE;
+ }
+
+ fonts = CreateFontList(wxT('c'), &nFonts);
+ if ( !fonts )
+ {
+ return TRUE;
+ }
+ }
+ else
+ {
+ fonts = CreateFontList(wxT('*'), &nFonts);
+
+ if ( !fonts )
+ {
+ wxFAIL_MSG(wxT("No fonts at all on this system?"));
+
+ return FALSE;
+ }
+ }
+
+ (void)ProcessFamiliesFromFontList(this, fonts, nFonts);
+
+ XFreeFontNames(fonts);
+
+ return TRUE;
+}
+
+bool wxFontEnumerator::EnumerateEncodings(const wxString& family)
+{
+ wxString pattern;
+ pattern.Printf(wxT("-*-%s-*-*-*-*-*-*-*-*-*-*-*-*"),
+ family.IsEmpty() ? wxT("*") : family.c_str());
+
+ // get the list of all fonts
+ int nFonts;
+ char **fonts = XListFonts((Display *)wxGetDisplay(), pattern,
+ 32767, &nFonts);
+
+ if ( !fonts )
+ {
+ // unknown family?
+ return FALSE;
+ }
+
+ // extract the list of (unique) encodings
+ wxSortedArrayString encodings;
+ for ( int n = 0; n < nFonts; n++ )
+ {
+ char *font = fonts[n];
+ if ( !wxString(font).Matches("-*-*-*-*-*-*-*-*-*-*-*-*-*-*") )
+ {
+ // it's not a full font name (probably an alias)
+ continue;
+ }
+
+ // extract the family
+ char *dash = strchr(font + 1, '-');
+ char *familyFont = dash + 1;
+ dash = strchr(familyFont, '-');
+ *dash = '\0'; // !NULL because Matches() above succeeded
+
+ if ( !family.IsEmpty() && (family != familyFont) )
+ {
+ // family doesn't match
+ continue;
+ }
+
+ // now extract the registry/encoding
+ char *p = dash + 1; // just after the dash after family
+ dash = strrchr(p, '-');
+
+ wxString registry(dash + 1);
+ *dash = '\0';
+
+ dash = strrchr(p, '-');
+ wxString encoding(dash + 1);
+
+ encoding << wxT('-') << registry;
+ if ( encodings.Index(encoding) == wxNOT_FOUND )
+ {
+ if ( !OnFontEncoding(familyFont, encoding) )
+ {
+ break;
+ }
+
+ encodings.Add(encoding);
+ }
+ //else: already had this one
+ }
+
+ XFreeFontNames(fonts);
+
+ return TRUE;
+}
projects / wxWidgets.git / commitdiff
