don't compare invalid iterators/node pointers

[wxWidgets.git] / src / x11 / font.cpp

diff --git a/src/x11/font.cpp b/src/x11/font.cpp
index 0e2d09b1ff94c3a31168db559787e8ad85b1fe22..08742ac42ef3439f0839ba4cf9146d5b2762705b 100644 (file)
--- a/src/x11/font.cpp
+++ b/src/x11/font.cpp
@@ -17,10 +17,6 @@
 // headers
 // ----------------------------------------------------------------------------
 
-#ifdef __GNUG__
-    #pragma implementation "font.h"
-#endif
-
 #ifdef __VMS
 #pragma message disable nosimpint
 #include "wx/vms_x_fix.h"
@@ -79,10 +75,10 @@ wxXFont::wxXFont()
 
 wxXFont::~wxXFont()
 {
-    // TODO: why does freeing the font produce a segv???
-    // Note that XFreeFont wasn't called in wxWin 1.68 either.
-    // XFontStruct* fontStruct = (XFontStruct*) m_fontStruct;
-    //        XFreeFont((Display*) m_display, fontStruct);
+    // Freeing the font used to produce a segv, but
+    // appears to be OK now (bug fix in X11?)
+    XFontStruct* fontStruct = (XFontStruct*) m_fontStruct;
+    XFreeFont((Display*) m_display, fontStruct);
 }
 #endif
 
@@ -123,7 +119,7 @@ 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);
@@ -202,7 +198,7 @@ void wxFontRefData::Init(int pointSize,
         case wxFONTFAMILY_TELETYPE:
            pango_font_description_set_family( m_nativeFontInfo.description, "monospace" );
            break;
-        case wxFONTFAMILY_SWISS:
+        case wxFONTFAMILY_ROMAN:
            pango_font_description_set_family( m_nativeFontInfo.description, "serif" );
            break;
         default:
@@ -424,12 +420,12 @@ void wxFontRefData::ClearX11Fonts()
 {
 #if wxUSE_UNICODE
 #else
-    wxNode* node = m_fonts.First();
+    wxList::compatibility_iterator node = m_fonts.GetFirst();
     while (node)
     {
-        wxXFont* f = (wxXFont*) node->Data();
+        wxXFont* f = (wxXFont*) node->GetData();
         delete f;
-        node = node->Next();
+        node = node->GetNext();
     }
     m_fonts.Clear();
 #endif
@@ -526,14 +522,8 @@ void wxFontRefData::SetNativeFontInfo(const wxNativeFontInfo& info)
 // wxFont
 // ----------------------------------------------------------------------------
 
-void wxFont::Init()
-{
-}
-
 wxFont::wxFont(const wxNativeFontInfo& info)
 {
-    Init();
-
 #if wxUSE_UNICODE
     Create( info.GetPointSize(),
             info.GetFamily(),
@@ -745,14 +735,14 @@ 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") );
 
@@ -762,7 +752,7 @@ wxNativeFontInfo *wxFont::GetNativeFontInfo() const
         GetInternalFont();
 #endif
 
-    return new wxNativeFontInfo(M_FONTDATA->m_nativeFontInfo);
+    return &(M_FONTDATA->m_nativeFontInfo);
 }
 
 bool wxFont::IsFixedWidth() const
@@ -770,6 +760,7 @@ bool wxFont::IsFixedWidth() const
     wxCHECK_MSG( Ok(), FALSE, wxT("invalid font") );
 
 #if wxUSE_UNICODE
+   return wxFontBase::IsFixedWidth();
 #else
     // Robert, is this right? HasNativeFont doesn't exist.
     if ( TRUE )
@@ -781,9 +772,10 @@ bool wxFont::IsFixedWidth() const
 
         return spacing.Upper() == _T('M');
     }
+   // Unreaceable code for now
+   // return wxFontBase::IsFixedWidth();
 #endif
 
-    return wxFontBase::IsFixedWidth();
 }
 
 // ----------------------------------------------------------------------------
@@ -872,15 +864,20 @@ wxXFont* wxFont::GetInternalFont(double scale, WXDisplay* display) const
     int pointSize = (M_FONTDATA->m_pointSize * 10 * intScale) / 100;
 
     // search existing fonts first
-    wxNode* node = M_FONTDATA->m_fonts.First();
+    wxList::compatibility_iterator node = M_FONTDATA->m_fonts.GetFirst();
     while (node)
     {
-        wxXFont* f = (wxXFont*) node->Data();
+        wxXFont* f = (wxXFont*) node->GetData();
         if ((!display || (f->m_display == display)) && (f->m_scale == intScale))
             return f;
-        node = node->Next();
+        node = node->GetNext();
     }
 
+    wxString xFontName = M_FONTDATA->m_nativeFontInfo.GetXFontName();
+    if (xFontName == "-*-*-*-*-*--*-*-*-*-*-*-*-*")
+      // wxFont constructor not called with native font info parameter => take M_FONTDATA values
+      xFontName.Clear();
+    
     // not found, create a new one
     XFontStruct *font = (XFontStruct *)
                         wxLoadQueryNearestFont(pointSize,
@@ -889,7 +886,8 @@ wxXFont* wxFont::GetInternalFont(double scale, WXDisplay* display) const
                                                M_FONTDATA->m_weight,
                                                M_FONTDATA->m_underlined,
                                                wxT(""),
-                                               M_FONTDATA->m_encoding);
+                                               M_FONTDATA->m_encoding,
+                                               & xFontName);
 
     if ( !font )
     {