X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/32d4c30a13f65b7c8cb66f813a0b8c606ad8480b..eaca1a91a53ac969adeaeff82e4740e85ee84edf:/src/unix/fontutil.cpp

diff --git a/src/unix/fontutil.cpp b/src/unix/fontutil.cpp
index 5230c5a09e..bdef942006 100644
--- a/src/unix/fontutil.cpp
+++ b/src/unix/fontutil.cpp
@@ -1,6 +1,6 @@
 /////////////////////////////////////////////////////////////////////////////
 // Name:        src/unix/fontutil.cpp
-// Purpose:     Font helper functions for X11 (GDK/X)
+// Purpose:     Font helper functions for wxX11, wxGTK, wxMotif
 // Author:      Vadim Zeitlin
 // Modified by:
 // Created:     05.11.99
@@ -24,26 +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/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
 
 // ----------------------------------------------------------------------------
@@ -55,8 +66,7 @@ void wxNativeFontInfo::Init()
     description = NULL;
 }
 
-void
-wxNativeFontInfo::Init(const wxNativeFontInfo& info)
+void wxNativeFontInfo::Init(const wxNativeFontInfo& info)
 {
     if (info.description)
         description = pango_font_description_copy(info.description);
@@ -127,27 +137,31 @@ bool wxNativeFontInfo::GetUnderlined() const
 
 wxString wxNativeFontInfo::GetFaceName() const
 {
-    wxString tmp = wxGTK_CONV_BACK( pango_font_description_get_family( description ) );
-
-    return tmp;
+    // the Pango "family" is the wx "face name"
+    return wxPANGO_CONV_BACK(pango_font_description_get_family(description));
 }
 
 wxFontFamily wxNativeFontInfo::GetFamily() const
 {
     wxFontFamily ret = wxFONTFAMILY_DEFAULT;
+
+    const char *family_name = pango_font_description_get_family( description );
+
     // 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 );
-    char *family_text = g_ascii_strdown( family_name, family_name ? strlen( family_name ) : 0 );
+    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"
-#if defined(__WXGTK24__) || defined(HAVE_PANGO_FONT_FAMILY_IS_MONOSPACE)
+#if defined(__WXGTK20__) || defined(HAVE_PANGO_FONT_FAMILY_IS_MONOSPACE)
     else
-#ifdef __WXGTK24__
+#ifdef __WXGTK20__
     if (!gtk_check_version(2,4,0))
 #endif
     {
@@ -162,9 +176,10 @@ wxFontFamily wxNativeFontInfo::GetFamily() const
 #endif
                 &families, &n_families);
 
-        for (int i = 0;i < n_families;++i)
+        for (int i = 0; i < n_families; ++i)
         {
-            if (g_ascii_strcasecmp(pango_font_family_get_name( families[i] ), pango_font_description_get_family( description )) == 0 )
+            if (g_ascii_strcasecmp(pango_font_family_get_name( families[i] ),
+                                   pango_font_description_get_family( description )) == 0 )
             {
                 family = families[i];
                 break;
@@ -173,31 +188,34 @@ wxFontFamily wxNativeFontInfo::GetFamily() const
 
         g_free(families);
 
-        // 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") );
+        // 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, 
+        //     "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
+        //BCI: g_ascii_strcasecmp(pango_font_description_get_family(description), 
+        //                        pango_font_family_get_name(family)) == 0
 
         if (family != NULL && pango_font_family_is_monospace( family ))
             ret = wxFONTFAMILY_TELETYPE; // is deemed a monospace font by pango
     }
-#endif // gtk24 || HAVE_PANGO_FONT_FAMILY_IS_MONOSPACE
+#endif // GTK+ 2 || HAVE_PANGO_FONT_FAMILY_IS_MONOSPACE
 
     if (ret == wxFONTFAMILY_DEFAULT)
     {
-        if (strstr( family_text, "sans" ) != NULL) // checked before serif, so that "* Sans Serif" fonts are detected correctly
+        if (strstr( family_text, "sans" ) != NULL) 
+            // checked before serif, so that "* Sans Serif" fonts are detected correctly
             ret = wxFONTFAMILY_SWISS; // contains "Sans"
         else if (strstr( family_text, "serif" ) != NULL)
             ret = wxFONTFAMILY_ROMAN; // contains "Serif"
         else if (strncmp( family_text, "times", 5 ) == 0)
             ret = wxFONTFAMILY_ROMAN; // begins with "Times"
         else if (strncmp( family_text, "old", 3 ) == 0)
-            ret = wxFONTFAMILY_DECORATIVE; // Begins with "Old" - "Old English", "Old Town"
+            ret = wxFONTFAMILY_DECORATIVE; // begins with "Old" - "Old English", "Old Town"
     }
 
-    free(family_text);
     return ret;
 }
 
@@ -206,7 +224,6 @@ wxFontEncoding wxNativeFontInfo::GetEncoding() const
     return wxFONTENCODING_SYSTEM;
 }
 
-
 void wxNativeFontInfo::SetPointSize(int pointsize)
 {
     pango_font_description_set_size( description, pointsize * PANGO_SCALE );
@@ -251,12 +268,15 @@ void wxNativeFontInfo::SetWeight(wxFontWeight weight)
 
 void wxNativeFontInfo::SetUnderlined(bool WXUNUSED(underlined))
 {
+    // wxWindowDCImpl::DoDrawText will take care of rendering font with
+    // the underline attribute
     wxFAIL_MSG( _T("not implemented") );
 }
 
-void wxNativeFontInfo::SetFaceName(const wxString& facename)
+bool wxNativeFontInfo::SetFaceName(const wxString& facename)
 {
-    pango_font_description_set_family(description, wxGTK_CONV_SYS(facename));
+    pango_font_description_set_family(description, wxPANGO_CONV(facename));
+    return true;
 }
 
 void wxNativeFontInfo::SetFamily(wxFontFamily WXUNUSED(family))
@@ -266,28 +286,55 @@ void wxNativeFontInfo::SetFamily(wxFontFamily WXUNUSED(family))
 
 void wxNativeFontInfo::SetEncoding(wxFontEncoding WXUNUSED(encoding))
 {
-    wxFAIL_MSG( _T("not implemented") );
+    wxFAIL_MSG( _T("not implemented: Pango encoding is always UTF8") );
 }
 
-
-
 bool wxNativeFontInfo::FromString(const wxString& s)
 {
     if (description)
         pango_font_description_free( description );
 
-    description = pango_font_description_from_string( wxGTK_CONV_SYS( 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;
 }
 
 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)
@@ -300,36 +347,6 @@ wxString wxNativeFontInfo::ToUserString() const
     return ToString();
 }
 
-// ----------------------------------------------------------------------------
-// wxNativeEncodingInfo
-// ----------------------------------------------------------------------------
-
-bool wxNativeEncodingInfo::FromString(const wxString& WXUNUSED(s))
-{
-    return false;
-}
-
-wxString wxNativeEncodingInfo::ToString() const
-{
-    return wxEmptyString;
-}
-
-bool wxTestFontEncoding(const wxNativeEncodingInfo& WXUNUSED(info))
-{
-    return true;
-}
-
-bool wxGetNativeFontEncoding(wxFontEncoding encoding,
-                             wxNativeEncodingInfo *info)
-{
-    // all encodings are available in GTK+ 2 because we translate text in any
-    // encoding to UTF-8 internally anyhow
-    info->facename.clear();
-    info->encoding = encoding;
-
-    return true;
-}
-
 #else // GTK+ 1.x
 
 #ifdef __X__
@@ -343,7 +360,6 @@ 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
@@ -359,7 +375,7 @@ bool wxGetNativeFontEncoding(wxFontEncoding encoding,
 // private data
 // ----------------------------------------------------------------------------
 
-static wxHashTable *g_fontHash = (wxHashTable*) NULL;
+static wxHashTable *g_fontHash = NULL;
 
 // ----------------------------------------------------------------------------
 // private functions
@@ -633,7 +649,7 @@ wxFontStyle wxNativeFontInfo::GetStyle() const
         return wxFONTSTYLE_NORMAL;
     }
 
-    switch ( s[0] )
+    switch ( s[0].GetValue() )
     {
         default:
             // again, unknown but consider normal by default
@@ -748,9 +764,10 @@ void wxNativeFontInfo::SetUnderlined(bool WXUNUSED(underlined))
     // can't do this under X
 }
 
-void wxNativeFontInfo::SetFaceName(const wxString& facename)
+bool wxNativeFontInfo::SetFaceName(const wxString& facename)
 {
     SetXFontComponent(wxXLFD_FAMILY, facename);
+    return true;
 }
 
 void wxNativeFontInfo::SetFamily(wxFontFamily WXUNUSED(family))
@@ -956,7 +973,8 @@ wxNativeFont wxLoadQueryNearestFont(int pointSize,
 
         int i, round; // counters
 
-        // first round: search for equal, then for smaller and for larger size with the given weight and style
+        // first round: search for equal, then for smaller and for larger size 
+        // with the given weight and style
         int testweight = weight;
         int teststyle = style;
 
@@ -1395,7 +1413,7 @@ void wxFontModule::OnExit()
 {
     delete g_fontHash;
 
-    g_fontHash = (wxHashTable *)NULL;
+    g_fontHash = NULL;
 }
 
 #endif // GTK 2.0/1.x