Ensure there is valid context for DrawRectangle

[wxWidgets.git] / src / unix / fontenum.cpp

diff --git a/src/unix/fontenum.cpp b/src/unix/fontenum.cpp
index a9960f0709832900898e6ab2846d59dbab5b9920..90a63d4a7c2a3e820fc59cedc0baa084a8a801a7 100644 (file)
--- a/src/unix/fontenum.cpp
+++ b/src/unix/fontenum.cpp
@@ -17,18 +17,94 @@
 // headers
 // ----------------------------------------------------------------------------
 
-#ifdef __GNUG__
-    #pragma implementation "fontenum.h"
-#endif
+// for compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
 
-#include "wx/defs.h"
-#include "wx/dynarray.h"
-#include "wx/string.h"
-#include "wx/utils.h"
+#if wxUSE_FONTENUM
 
-#include "wx/fontmap.h"
 #include "wx/fontenum.h"
+
+#ifndef WX_PRECOMP
+    #include "wx/dynarray.h"
+    #include "wx/string.h"
+    #include "wx/app.h"
+    #include "wx/utils.h"
+#endif
+
+#include "wx/regex.h"
+#include "wx/fontmap.h"
 #include "wx/fontutil.h"
+#include "wx/encinfo.h"
+
+// ----------------------------------------------------------------------------
+// Pango
+// ----------------------------------------------------------------------------
+
+#if wxUSE_PANGO
+
+#include "pango/pango.h"
+
+#ifdef __WXGTK20__
+#include "gtk/gtk.h"
+extern GtkWidget *wxGetRootWindow();
+#endif // __WXGTK20__
+
+extern "C"
+{
+static int wxCMPFUNC_CONV
+wxCompareFamilies (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);
+
+  return g_utf8_collate (a_name, b_name);
+}
+}
+
+bool wxFontEnumerator::EnumerateFacenames(wxFontEncoding encoding,
+                                          bool fixedWidthOnly)
+{
+    if ( encoding != wxFONTENCODING_SYSTEM && encoding != wxFONTENCODING_UTF8 )
+    {
+        // Pango supports only UTF-8 encoding (and system means any, so we
+        // accept it too)
+        return false;
+    }
+
+    PangoFontFamily **families = NULL;
+    gint n_families = 0;
+    pango_context_list_families (
+#ifdef __WXGTK20__
+        gtk_widget_get_pango_context( wxGetRootWindow() ),
+#else
+        wxTheApp->GetPangoContext(),
+#endif
+        &families, &n_families );
+    qsort (families, n_families, sizeof (PangoFontFamily *), wxCompareFamilies);
+
+    for ( int i = 0; i < n_families; i++ )
+    {
+#if defined(__WXGTK20__) || defined(HAVE_PANGO_FONT_FAMILY_IS_MONOSPACE)
+        if ( !fixedWidthOnly ||
+            pango_font_family_is_monospace(families[i]) )
+#endif
+        {
+            const gchar *name = pango_font_family_get_name(families[i]);
+            OnFacename(wxString(name, wxConvUTF8));
+        }
+    }
+    g_free(families);
+
+    return true;
+}
+
+bool wxFontEnumerator::EnumerateEncodings(const wxString& facename)
+{
+    return EnumerateEncodingsUTF8(facename);
+}
+
+
+#else // !wxUSE_PANGO
 
 #ifdef __VMS__ // Xlib.h for VMS is not (yet) compatible with C++
                // The resulting warnings are switched off here
@@ -66,6 +142,7 @@ static bool ProcessFamiliesFromFontList(wxFontEnumerator *This,
 // helpers
 // ----------------------------------------------------------------------------
 
+#if !wxUSE_NANOX
 static char **CreateFontList(wxChar spacing,
                              wxFontEncoding encoding,
                              int *nFonts)
@@ -73,11 +150,13 @@ static char **CreateFontList(wxChar spacing,
     wxNativeEncodingInfo info;
     wxGetNativeFontEncoding(encoding, &info);
 
+#if wxUSE_FONTMAP
     if ( !wxTestFontEncoding(info) )
     {
         // ask font mapper for a replacement
-        (void)wxTheFontMapper->GetAltForEncoding(encoding, &info);
+        (void)wxFontMapper::Get()->GetAltForEncoding(encoding, &info);
     }
+#endif // wxUSE_FONTMAP
 
     wxString pattern;
     pattern.Printf(wxT("-*-*-*-*-*-*-*-*-*-*-%c-*-%s-%s"),
@@ -93,17 +172,26 @@ static bool ProcessFamiliesFromFontList(wxFontEnumerator *This,
                                         char **fonts,
                                         int nFonts)
 {
+#if wxUSE_REGEX
+    wxRegEx re(wxT("^(-[^-]*){14}$"), wxRE_NOSUB);
+#endif // wxUSE_REGEX
+
     // extract the list of (unique) font families
     wxSortedArrayString families;
     for ( int n = 0; n < nFonts; n++ )
     {
         char *font = fonts[n];
+#if wxUSE_REGEX
+        if ( !re.Matches(font) )
+#else // !wxUSE_REGEX
         if ( !wxString(font).Matches(wxT("-*-*-*-*-*-*-*-*-*-*-*-*-*-*")) )
+#endif // wxUSE_REGEX/!wxUSE_REGEX
         {
             // it's not a full font name (probably an alias)
             continue;
         }
 
+        // coverity[returned_null]
         char *dash = strchr(font + 1, '-');
         char *family = dash + 1;
         dash = strchr(family, '-');
@@ -115,7 +203,7 @@ static bool ProcessFamiliesFromFontList(wxFontEnumerator *This,
             if ( !This->OnFacename(fam) )
             {
                 // stop enumerating
-                return FALSE;
+                return false;
             }
 
             families.Add(fam);
@@ -123,8 +211,10 @@ static bool ProcessFamiliesFromFontList(wxFontEnumerator *This,
         //else: already seen
     }
 
-    return TRUE;
+    return true;
 }
+#endif
+  // wxUSE_NANOX
 
 // ----------------------------------------------------------------------------
 // wxFontEnumerator
@@ -133,12 +223,15 @@ static bool ProcessFamiliesFromFontList(wxFontEnumerator *This,
 bool wxFontEnumerator::EnumerateFacenames(wxFontEncoding encoding,
                                           bool fixedWidthOnly)
 {
+#if wxUSE_NANOX
+    return false;
+#else
     int nFonts;
     char **fonts;
 
     if ( fixedWidthOnly )
     {
-        bool cont = TRUE;
+        bool cont = true;
         fonts = CreateFontList(wxT('m'), encoding, &nFonts);
         if ( fonts )
         {
@@ -149,13 +242,13 @@ bool wxFontEnumerator::EnumerateFacenames(wxFontEncoding encoding,
 
         if ( !cont )
         {
-            return TRUE;
+            return true;
         }
 
         fonts = CreateFontList(wxT('c'), encoding, &nFonts);
         if ( !fonts )
         {
-            return TRUE;
+            return true;
         }
     }
     else
@@ -169,22 +262,26 @@ bool wxFontEnumerator::EnumerateFacenames(wxFontEncoding encoding,
             wxASSERT_MSG(encoding != wxFONTENCODING_SYSTEM,
                          wxT("No fonts at all on this system?"));
 
-            return FALSE;
+            return false;
         }
     }
 
     (void)ProcessFamiliesFromFontList(this, fonts, nFonts);
 
     XFreeFontNames(fonts);
-
-    return TRUE;
+    return true;
+#endif
+    // wxUSE_NANOX
 }
 
 bool wxFontEnumerator::EnumerateEncodings(const wxString& family)
 {
+#if wxUSE_NANOX
+    return false;
+#else
     wxString pattern;
     pattern.Printf(wxT("-*-%s-*-*-*-*-*-*-*-*-*-*-*-*"),
-                   family.IsEmpty() ? wxT("*") : family.c_str());
+                   family.empty() ? wxT("*") : family.c_str());
 
     // get the list of all fonts
     int nFonts;
@@ -194,7 +291,7 @@ bool wxFontEnumerator::EnumerateEncodings(const wxString& family)
     if ( !fonts )
     {
         // unknown family?
-        return FALSE;
+        return false;
     }
 
     // extract the list of (unique) encodings
@@ -214,7 +311,7 @@ bool wxFontEnumerator::EnumerateEncodings(const wxString& family)
         dash = strchr(familyFont, '-');
         *dash = '\0'; // !NULL because Matches() above succeeded
 
-        if ( !family.IsEmpty() && (family != familyFont) )
+        if ( !family.empty() && (family != familyFont) )
         {
             // family doesn't match
             continue;
@@ -245,5 +342,11 @@ bool wxFontEnumerator::EnumerateEncodings(const wxString& family)
 
     XFreeFontNames(fonts);
 
-    return TRUE;
+    return true;
+#endif
+    // wxUSE_NANOX
 }
+
+#endif // !wxUSE_PANGO
+
+#endif // wxUSE_FONTENUM