Possible crash fix from Ryan (patch #1194315).

[wxWidgets.git] / src / gtk / font.cpp

diff --git a/src/gtk/font.cpp b/src/gtk/font.cpp
index f62f55b84075f1122ecf561b519a0cb332b40016..853e34a68ccffb3516b00b6df548060f2a30ba8c 100644 (file)
--- a/src/gtk/font.cpp
+++ b/src/gtk/font.cpp
@@ -86,11 +86,6 @@ public:
 #endif // GTK 2.0/1.x
     }
 
-#ifndef __WXGTK20__
-    // reinitilize the font with the gived XFLD
-    void ReInit(const wxString& fontname);
-#endif
-
     // setters: all of them also take care to modify m_nativeFontInfo if we
     // have it so as to not lose the information not carried by our fields
     void SetPointSize(int pointSize);
@@ -102,7 +97,7 @@ public:
     void SetEncoding(wxFontEncoding encoding);
 
     void SetNoAntiAliasing( bool no = TRUE ) { m_noAA = no; }
-    bool GetNoAntiAliasing() { return m_noAA; }
+    bool GetNoAntiAliasing() const { return m_noAA; }
 
     // and this one also modifies all the other font data fields
     void SetNativeFontInfo(const wxNativeFontInfo& info);
@@ -241,6 +236,11 @@ void wxFontRefData::InitFromNative()
     // init fields
     m_faceName = wxGTK_CONV_BACK( pango_font_description_get_family( desc ) );
 
+    // Pango sometimes needs to have a size
+    int pango_size = pango_font_description_get_size( desc );
+    if (pango_size == 0)
+        pango_font_description_set_size( desc, 12 * PANGO_SCALE);
+
     m_pointSize = pango_font_description_get_size( desc ) / PANGO_SCALE;
 
     switch (pango_font_description_get_style( desc ))
@@ -256,26 +256,19 @@ void wxFontRefData::InitFromNative()
             break;
     }
 
-    switch (pango_font_description_get_weight( desc ))
+    PangoWeight pango_weight = pango_font_description_get_weight( desc );
+
+    if (pango_weight >= 600)
     {
-        case PANGO_WEIGHT_ULTRALIGHT:
-            m_weight = wxFONTWEIGHT_LIGHT;
-            break;
-        case PANGO_WEIGHT_LIGHT:
-            m_weight = wxFONTWEIGHT_LIGHT;
-            break;
-        case PANGO_WEIGHT_NORMAL:
-            m_weight = wxFONTWEIGHT_NORMAL;
-            break;
-        case PANGO_WEIGHT_BOLD:
-            m_weight = wxFONTWEIGHT_BOLD;
-            break;
-        case PANGO_WEIGHT_ULTRABOLD:
-            m_weight = wxFONTWEIGHT_BOLD;
-            break;
-        case PANGO_WEIGHT_HEAVY:
-            m_weight = wxFONTWEIGHT_BOLD;
-            break;
+        m_weight = wxFONTWEIGHT_BOLD;
+    }
+    else if (pango_weight < 350)
+    {
+        m_weight = wxFONTWEIGHT_LIGHT;
+    }
+    else
+    {
+        m_weight = wxFONTWEIGHT_NORMAL;
     }
 
     if (m_faceName == wxT("monospace"))
@@ -442,15 +435,6 @@ wxFontRefData::wxFontRefData(const wxString& fontname)
     InitFromNative();
 }
 
-#ifndef __WXGTK20__
-void wxFontRefData::ReInit(const wxString& fontname)
-{
-    m_nativeFontInfo.SetXFontName(fontname);
-
-    InitFromNative();
-}
-#endif
-
 void wxFontRefData::ClearGdkFonts()
 {
 #ifndef __WXGTK20__
@@ -783,23 +767,28 @@ wxFontEncoding wxFont::GetEncoding() const
     return M_FONTDATA->m_encoding;
 }
 
-bool wxFont::GetNoAntiAliasing()
+bool wxFont::GetNoAntiAliasing() const
 {
     wxCHECK_MSG( Ok(), wxFONTENCODING_DEFAULT, wxT("invalid font") );
 
     return M_FONTDATA->m_noAA;
 }
 
-wxNativeFontInfo *wxFont::GetNativeFontInfo() const
+const wxNativeFontInfo *wxFont::GetNativeFontInfo() const
 {
     wxCHECK_MSG( Ok(), (wxNativeFontInfo *)NULL, wxT("invalid font") );
 
 #ifndef __WXGTK20__
-    if ( M_FONTDATA->m_nativeFontInfo.GetXFontName().empty() )
+    if ( !M_FONTDATA->HasNativeFont() )
+    {
+        // NB: this call has important side-effect: it not only finds
+        //     GdkFont representation, it also initializes m_nativeFontInfo
+        //     by calling its SetXFontName method
         GetInternalFont();
+    }
 #endif
 
-    return new wxNativeFontInfo(M_FONTDATA->m_nativeFontInfo);
+    return &(M_FONTDATA->m_nativeFontInfo);
 }
 
 bool wxFont::IsFixedWidth() const
@@ -947,7 +936,7 @@ GdkFont *wxFont::GetInternalFont( float scale ) const
         if ( !font )
         {
             // do we have the XLFD?
-            if ( M_FONTDATA->HasNativeFont() )
+            if ( int_scale == 100 && M_FONTDATA->HasNativeFont() )
             {
                 font = wxLoadFont(M_FONTDATA->m_nativeFontInfo.GetXFontName());
             }
@@ -964,10 +953,10 @@ GdkFont *wxFont::GetInternalFont( float scale ) const
                                                M_FONTDATA->m_faceName,
                                                M_FONTDATA->m_encoding,
                                                &xfontname);
-                if ( font )
-                {
-                    M_FONTDATA->ReInit(xfontname);
-                }
+                // NB: wxFont::GetNativeFontInfo relies on this
+                //     side-effect of GetInternalFont
+                if ( int_scale == 100 )
+                    M_FONTDATA->m_nativeFontInfo.SetXFontName(xfontname);
             }
         }