X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/8a15e8ba7aa7800427ac4118f434e827f33dd73a..9d5507f7a2701395e1d5c121bd877bb9066ee6ea:/src/unix/fontutil.cpp

diff --git a/src/unix/fontutil.cpp b/src/unix/fontutil.cpp
index bcabccd4b0..713510290d 100644
--- a/src/unix/fontutil.cpp
+++ b/src/unix/fontutil.cpp
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        unix/fontutil.cpp
+// Name:        src/unix/fontutil.cpp
 // Purpose:     Font helper functions for X11 (GDK/X)
 // Author:      Vadim Zeitlin
 // Modified by:
@@ -17,10 +17,6 @@
 // headers
 // ----------------------------------------------------------------------------
 
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-    #pragma implementation "fontutil.h"
-#endif
-
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
@@ -28,26 +24,37 @@
     #pragma hdrstop
 #endif
 
+#include "wx/fontutil.h"
+
 #ifndef WX_PRECOMP
+    #include "wx/app.h"
     #include "wx/font.h" // wxFont enums
     #include "wx/encinfo.h"
+    #include "wx/hash.h"
+    #include "wx/utils.h"       // for wxGetDisplay()
+    #include "wx/module.h"
 #endif // PCH
 
-#include "wx/fontutil.h"
 #include "wx/fontmap.h"
 #include "wx/tokenzr.h"
-#include "wx/hash.h"
-#include "wx/module.h"
+#include "wx/fontenum.h"
 
 #if wxUSE_PANGO
 
 #include "pango/pango.h"
 
 #ifdef __WXGTK20__
-#include "wx/gtk/private.h"
-extern GtkWidget *wxGetRootWindow();
+    #include "wx/gtk/private.h"
+    extern GtkWidget *wxGetRootWindow();
+
+    #define wxPANGO_CONV wxGTK_CONV_SYS
+    #define wxPANGO_CONV_BACK wxGTK_CONV_BACK_SYS
 #else
-#include "wx/x11/private.h"
+    #include "wx/x11/private.h"
+    #include "wx/gtk/private/string.h"
+
+    #define wxPANGO_CONV(s) (wxConvUTF8.cWX2MB((s)))
+    #define wxPANGO_CONV_BACK(s) (wxConvUTF8.cMB2WX((s)))
 #endif
 
 // ----------------------------------------------------------------------------
@@ -126,30 +133,39 @@ wxFontWeight wxNativeFontInfo::GetWeight() const
 
 bool wxNativeFontInfo::GetUnderlined() const
 {
-    return FALSE;
+    return false;
 }
 
 wxString wxNativeFontInfo::GetFaceName() const
 {
-    wxString tmp = wxGTK_CONV_BACK( pango_font_description_get_family( description ) );
-
-    return tmp;
+    return wxPANGO_CONV_BACK(pango_font_description_get_family(description));
 }
 
 wxFontFamily wxNativeFontInfo::GetFamily() const
 {
     wxFontFamily ret = wxFONTFAMILY_DEFAULT;
-    char *family_text = g_ascii_strdown( pango_font_description_get_family( description ), -1 );
+    // note: not passing -1 as the 2nd parameter to g_ascii_strdown to work
+    // around a bug in the 64-bit glib shipped with solaris 10, -1 causes it
+    // to try to allocate 2^32 bytes.
+    const char *family_name = pango_font_description_get_family( description );
+    if ( !family_name )
+        return ret;
+
+    wxGtkString family_text(g_ascii_strdown(family_name, strlen(family_name)));
+
     // Check for some common fonts, to salvage what we can from the current win32 centric wxFont API:
     if (strncmp( family_text, "monospace", 9 ) == 0)
         ret = wxFONTFAMILY_TELETYPE; // begins with "Monospace"
     else if (strncmp( family_text, "courier", 7 ) == 0)
         ret = wxFONTFAMILY_TELETYPE; // begins with "Courier"
-#ifdef HAVE_PANGO_FONT_FAMILY_IS_MONOSPACE
+#if defined(__WXGTK20__) || defined(HAVE_PANGO_FONT_FAMILY_IS_MONOSPACE)
     else
+#ifdef __WXGTK20__
+    if (!gtk_check_version(2,4,0))
+#endif
     {
         PangoFontFamily **families;
-        PangoFontFamily  *family;
+        PangoFontFamily  *family = NULL;
         int n_families;
         pango_context_list_families(
 #ifdef __WXGTK20__
@@ -170,15 +186,17 @@ wxFontFamily wxNativeFontInfo::GetFamily() const
 
         g_free(families);
 
-        wxASSERT_MSG( family, wxT("wxNativeFontInfo::GetFamily() - No appropriate PangoFontFamily found for ::description") );
+        // Some gtk+ systems might query for a non-existing font from wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT)
+        // on initialization, don't assert until wxSystemSettings::GetFont is checked for this - MR
+        // wxASSERT_MSG( family, wxT("wxNativeFontInfo::GetFamily() - No appropriate PangoFontFamily found for ::description") );
 
         //BCI: Cache the wxFontFamily inside the class. Validate cache with
         //BCI: g_ascii_strcasecmp(pango_font_description_get_family(description), pango_font_family_get_name(family)) == 0
 
-        if (pango_font_family_is_monospace( family ))
+        if (family != NULL && pango_font_family_is_monospace( family ))
             ret = wxFONTFAMILY_TELETYPE; // is deemed a monospace font by pango
     }
-#endif // pango_font_family_is_monospace
+#endif // GTK+ 2 || HAVE_PANGO_FONT_FAMILY_IS_MONOSPACE
 
     if (ret == wxFONTFAMILY_DEFAULT)
     {
@@ -192,7 +210,6 @@ wxFontFamily wxNativeFontInfo::GetFamily() const
             ret = wxFONTFAMILY_DECORATIVE; // Begins with "Old" - "Old English", "Old Town"
     }
 
-    free(family_text);
     return ret;
 }
 
@@ -249,9 +266,10 @@ void wxNativeFontInfo::SetUnderlined(bool WXUNUSED(underlined))
     wxFAIL_MSG( _T("not implemented") );
 }
 
-void wxNativeFontInfo::SetFaceName(wxString facename)
+bool wxNativeFontInfo::SetFaceName(const wxString& facename)
 {
-    pango_font_description_set_family( description, wxGTK_CONV(facename) );
+    pango_font_description_set_family(description, wxPANGO_CONV(facename));
+    return true;
 }
 
 void wxNativeFontInfo::SetFamily(wxFontFamily WXUNUSED(family))
@@ -271,18 +289,47 @@ bool wxNativeFontInfo::FromString(const wxString& s)
     if (description)
         pango_font_description_free( description );
 
-    description = pango_font_description_from_string( wxGTK_CONV( s ) );
+    // there is a bug in at least pango <= 1.13 which makes it (or its backends)
+    // segfault for very big point sizes and for negative point sizes.
+    // To workaround that bug for pango <= 1.13
+    // (see http://bugzilla.gnome.org/show_bug.cgi?id=340229)
+    // we do the check on the size here using same (arbitrary) limits used by
+    // pango > 1.13. Note that the segfault could happen also for pointsize
+    // smaller than this limit !!
+    wxString str(s);
+    const size_t pos = str.find_last_of(_T(" "));
+    double size;
+    if ( pos != wxString::npos && wxString(str, pos + 1).ToDouble(&size) )
+    {
+        wxString sizeStr;
+        if ( size < 1 )
+            sizeStr = _T("1");
+        else if ( size >= 1E6 )
+            sizeStr = _T("1E6");
+
+        if ( !sizeStr.empty() )
+        {
+            // replace the old size with the adjusted one
+            str = wxString(s, 0, pos) + sizeStr;
+        }
+    }
+
+    description = pango_font_description_from_string(wxPANGO_CONV(str));
+
+#if wxUSE_FONTENUM
+    // ensure a valid facename is selected
+    if (!wxFontEnumerator::IsValidFacename(GetFaceName()))
+        SetFaceName(wxNORMAL_FONT->GetFaceName());
+#endif // wxUSE_FONTENUM
 
-    return TRUE;
+    return true;
 }
 
 wxString wxNativeFontInfo::ToString() const
 {
-    char *str = pango_font_description_to_string( description );
-    wxString tmp = wxGTK_CONV_BACK(  str );
-    g_free( str );
+    wxGtkString str(pango_font_description_to_string( description ));
 
-    return tmp;
+    return wxPANGO_CONV_BACK(str);
 }
 
 bool wxNativeFontInfo::FromUserString(const wxString& s)
@@ -295,41 +342,6 @@ wxString wxNativeFontInfo::ToUserString() const
     return ToString();
 }
 
-// ----------------------------------------------------------------------------
-// wxNativeEncodingInfo
-// ----------------------------------------------------------------------------
-
-bool wxNativeEncodingInfo::FromString(const wxString& s)
-{
-    return FALSE;
-}
-
-wxString wxNativeEncodingInfo::ToString() const
-{
-    return wxEmptyString;
-}
-
-bool wxTestFontEncoding(const wxNativeEncodingInfo& info)
-{
-    return TRUE;
-}
-
-bool wxGetNativeFontEncoding(wxFontEncoding encoding,
-                             wxNativeEncodingInfo *info)
-{
-    // we *must* return true for default encoding as otherwise wxFontMapper
-    // considers that we can't load any font and aborts with wxLogFatalError!
-    if ( encoding == wxFONTENCODING_SYSTEM )
-    {
-        info->facename.clear();
-        info->encoding = wxFONTENCODING_SYSTEM;
-    }
-
-    // pretend that we support everything, it's better than to always return
-    // false as the old code did
-    return true;
-}
-
 #else // GTK+ 1.x
 
 #ifdef __X__
@@ -343,7 +355,6 @@ bool wxGetNativeFontEncoding(wxFontEncoding encoding,
         #pragma message enable nosimpint
     #endif
 
-    #include "wx/utils.h"       // for wxGetDisplay()
 #elif defined(__WXGTK__)
     // we have to declare struct tm to avoid problems with first forward
     // declaring it in C code (glib.h included from gdk.h does it) and then
@@ -426,28 +437,28 @@ bool wxNativeEncodingInfo::FromString(const wxString& s)
     wxString encid = tokenizer.GetNextToken();
     long enc;
     if ( !encid.ToLong(&enc) )
-        return FALSE;
+        return false;
     encoding = (wxFontEncoding)enc;
 
     xregistry = tokenizer.GetNextToken();
     if ( !xregistry )
-        return FALSE;
+        return false;
 
     xencoding = tokenizer.GetNextToken();
     if ( !xencoding )
-        return FALSE;
+        return false;
 
     // ok even if empty
     facename = tokenizer.GetNextToken();
 
-    return TRUE;
+    return true;
 }
 
 wxString wxNativeEncodingInfo::ToString() const
 {
     wxString s;
     s << (long)encoding << _T(';') << xregistry << _T(';') << xencoding;
-    if ( !!facename )
+    if ( !facename.empty() )
     {
         s << _T(';') << facename;
     }
@@ -461,7 +472,7 @@ wxString wxNativeEncodingInfo::ToString() const
 
 void wxNativeFontInfo::Init()
 {
-    m_isDefault = TRUE;
+    m_isDefault = true;
 }
 
 bool wxNativeFontInfo::FromString(const wxString& s)
@@ -471,13 +482,13 @@ bool wxNativeFontInfo::FromString(const wxString& s)
     // check the version
     wxString token = tokenizer.GetNextToken();
     if ( token != _T('0') )
-        return FALSE;
+        return false;
 
     xFontName = tokenizer.GetNextToken();
 
     // this should be the end
     if ( tokenizer.HasMoreTokens() )
-        return FALSE;
+        return false;
 
     return FromXFontName(xFontName);
 }
@@ -507,13 +518,13 @@ bool wxNativeFontInfo::HasElements() const
 
 wxString wxNativeFontInfo::GetXFontComponent(wxXLFDField field) const
 {
-    wxCHECK_MSG( field < wxXLFD_MAX, _T(""), _T("invalid XLFD field") );
+    wxCHECK_MSG( field < wxXLFD_MAX, wxEmptyString, _T("invalid XLFD field") );
 
     if ( !HasElements() )
     {
         // const_cast
         if ( !((wxNativeFontInfo *)this)->FromXFontName(xFontName) )
-            return _T("");
+            return wxEmptyString;
     }
 
     return fontElements[field];
@@ -526,7 +537,7 @@ bool wxNativeFontInfo::FromXFontName(const wxString& fontname)
 
     // skip the leading, usually empty field (font name registry)
     if ( !tokenizer.HasMoreTokens() )
-        return FALSE;
+        return false;
 
     (void)tokenizer.GetNextToken();
 
@@ -535,14 +546,14 @@ bool wxNativeFontInfo::FromXFontName(const wxString& fontname)
         if ( !tokenizer.HasMoreTokens() )
         {
             // not enough elements in the XLFD - or maybe an alias
-            return FALSE;
+            return false;
         }
 
         wxString field = tokenizer.GetNextToken();
         if ( !field.empty() && field != _T('*') )
         {
             // we're really initialized now
-            m_isDefault = FALSE;
+            m_isDefault = false;
         }
 
         fontElements[n] = field;
@@ -550,9 +561,9 @@ bool wxNativeFontInfo::FromXFontName(const wxString& fontname)
 
     // this should be all
     if ( tokenizer.HasMoreTokens() )
-        return FALSE;
+        return false;
 
-    return TRUE;
+    return true;
 }
 
 wxString wxNativeFontInfo::GetXFontName() const
@@ -610,7 +621,7 @@ void wxNativeFontInfo::SetXFontName(const wxString& xFontName_)
 
     xFontName = xFontName_;
 
-    m_isDefault = FALSE;
+    m_isDefault = false;
 }
 
 int wxNativeFontInfo::GetPointSize() const
@@ -633,7 +644,7 @@ wxFontStyle wxNativeFontInfo::GetStyle() const
         return wxFONTSTYLE_NORMAL;
     }
 
-    switch ( s[0] )
+    switch ( s[0].GetValue() )
     {
         default:
             // again, unknown but consider normal by default
@@ -663,7 +674,7 @@ wxFontWeight wxNativeFontInfo::GetWeight() const
 bool wxNativeFontInfo::GetUnderlined() const
 {
     // X fonts are never underlined
-    return FALSE;
+    return false;
 }
 
 wxString wxNativeFontInfo::GetFaceName() const
@@ -748,12 +759,13 @@ void wxNativeFontInfo::SetUnderlined(bool WXUNUSED(underlined))
     // can't do this under X
 }
 
-void wxNativeFontInfo::SetFaceName(wxString facename)
+bool wxNativeFontInfo::SetFaceName(const wxString& facename)
 {
     SetXFontComponent(wxXLFD_FAMILY, facename);
+    return true;
 }
 
-void wxNativeFontInfo::SetFamily(wxFontFamily family)
+void wxNativeFontInfo::SetFamily(wxFontFamily WXUNUSED(family))
 {
     // wxFontFamily -> X foundry, anyone?
     wxFAIL_MSG( _T("not implemented") );
@@ -778,7 +790,7 @@ void wxNativeFontInfo::SetEncoding(wxFontEncoding encoding)
 bool wxGetNativeFontEncoding(wxFontEncoding encoding,
                              wxNativeEncodingInfo *info)
 {
-    wxCHECK_MSG( info, FALSE, _T("bad pointer in wxGetNativeFontEncoding") );
+    wxCHECK_MSG( info, false, _T("bad pointer in wxGetNativeFontEncoding") );
 
     if ( encoding == wxFONTENCODING_DEFAULT )
     {
@@ -855,12 +867,12 @@ bool wxGetNativeFontEncoding(wxFontEncoding encoding,
 
         default:
             // don't know how to translate this encoding into X fontspec
-            return FALSE;
+            return false;
     }
 
     info->encoding = encoding;
 
-    return TRUE;
+    return true;
 }
 
 bool wxTestFontEncoding(const wxNativeEncodingInfo& info)
@@ -924,7 +936,7 @@ wxNativeFont wxLoadQueryNearestFont(int pointSize,
     wxNativeFont font = 0;
 
     // if we already have the X font name, try to use it
-    if( xFontName && !xFontName->IsEmpty() )
+    if( xFontName && !xFontName->empty() )
     {
         //
         //  Make sure point size is correct for scale factor.
@@ -1037,7 +1049,7 @@ wxNativeFont wxLoadQueryNearestFont(int pointSize,
                 if ( !font )
                 {
                     font = wxLoadQueryFont(-1, wxDEFAULT, wxNORMAL, wxNORMAL,
-                                           FALSE, wxEmptyString,
+                                           false, wxEmptyString,
                                            info.xregistry, info.xencoding,
                                            xFontName);
 
@@ -1050,7 +1062,7 @@ wxNativeFont wxLoadQueryNearestFont(int pointSize,
 
                         font = wxLoadQueryFont(-1,
                                                wxDEFAULT, wxNORMAL, wxNORMAL,
-                                               FALSE, wxEmptyString,
+                                               false, wxEmptyString,
                                                _T("*"), _T("*"),
                                                xFontName);
                     }
@@ -1066,20 +1078,20 @@ wxNativeFont wxLoadQueryNearestFont(int pointSize,
 // private functions
 // ----------------------------------------------------------------------------
 
-// returns TRUE if there are any fonts matching this font spec
+// returns true if there are any fonts matching this font spec
 static bool wxTestFontSpec(const wxString& fontspec)
 {
     // some X servers will fail to load this font because there are too many
     // matches so we must test explicitly for this
     if ( fontspec == _T("-*-*-*-*-*-*-*-*-*-*-*-*-*-*") )
     {
-        return TRUE;
+        return true;
     }
 
     wxNativeFont test = (wxNativeFont) g_fontHash->Get( fontspec );
     if (test)
     {
-        return TRUE;
+        return true;
     }
 
     test = wxLoadFont(fontspec);
@@ -1089,11 +1101,11 @@ static bool wxTestFontSpec(const wxString& fontspec)
     {
         wxFreeFont(test);
 
-        return TRUE;
+        return true;
     }
     else
     {
-        return FALSE;
+        return false;
     }
 }
 
@@ -1190,7 +1202,7 @@ static wxNativeFont wxLoadQueryFont(int pointSize,
 
 #else
     wxString fontSpec;
-    if (!facename.IsEmpty())
+    if (!facename.empty())
     {
         fontSpec.Printf(wxT("-*-%s-*-*-normal-*-*-*-*-*-*-*-*-*"),
                         facename.c_str());
@@ -1388,7 +1400,7 @@ bool wxFontModule::OnInit()
 {
     g_fontHash = new wxHashTable( wxKEY_STRING );
 
-    return TRUE;
+    return true;
 }
 
 void wxFontModule::OnExit()
@@ -1399,4 +1411,3 @@ void wxFontModule::OnExit()
 }
 
 #endif // GTK 2.0/1.x
-