fixing overrelease and out-of-bounds write, fixes #13725

[wxWidgets.git] / src / common / fontmgrcmn.cpp

diff --git a/src/common/fontmgrcmn.cpp b/src/common/fontmgrcmn.cpp
index 6a5d0683ec5fe4c1c2d2cb186754d45e7741aa54..b4a379ddae426d6848969bb7f32f3295e283b55d 100644 (file)
--- a/src/common/fontmgrcmn.cpp
+++ b/src/common/fontmgrcmn.cpp
@@ -24,9 +24,15 @@
 WX_DECLARE_LIST(wxFontInstance, wxFontInstanceList);
 WX_DEFINE_LIST(wxFontInstanceList)
 WX_DEFINE_LIST(wxFontBundleList)
+
 WX_DECLARE_HASH_MAP(wxString, wxFontBundle*,
                     wxStringHash, wxStringEqual,
-                    wxFontBundleHash);
+                    wxFontBundleHashBase);
+// in STL build, hash class is typedef to a template, so it can't be forward
+// declared, as we do; solve it by having a dummy class:
+class wxFontBundleHash : public wxFontBundleHashBase
+{
+};
 
 // ============================================================================
 // implementation
@@ -63,19 +69,16 @@ void wxFontFaceBase::Release()
 
 wxFontInstance *wxFontFaceBase::GetFontInstance(float ptSize, bool aa)
 {
-    wxASSERT_MSG( m_refCnt > 0, _T("font library not loaded!") );
-
-    wxFontInstance *i;
-    wxFontInstanceList::Node *node;
+    wxASSERT_MSG( m_refCnt > 0, wxT("font library not loaded!") );
 
-    for ( node = m_instances->GetFirst(); node; node = node->GetNext() )
+    for ( wxFontInstanceList::const_iterator i = m_instances->begin();
+          i != m_instances->end(); ++i )
     {
-        i = node->GetData();
-        if ( i->GetPointSize() == ptSize && i->IsAntiAliased() == aa )
-            return i;
+        if ( (*i)->GetPointSize() == ptSize && (*i)->IsAntiAliased() == aa )
+            return *i;
     }
 
-    i = CreateFontInstance(ptSize, aa);
+    wxFontInstance *i = CreateFontInstance(ptSize, aa);
     m_instances->Append(i);
     return i;
 }
@@ -100,7 +103,7 @@ wxFontFace *wxFontBundleBase::GetFace(FaceType type) const
 {
     wxFontFace *f = m_faces[type];
 
-    wxCHECK_MSG( f, NULL, _T("no such face in font bundle") );
+    wxCHECK_MSG( f, NULL, wxT("no such face in font bundle") );
 
     f->Acquire();
 
@@ -110,8 +113,9 @@ wxFontFace *wxFontBundleBase::GetFace(FaceType type) const
 wxFontFace *
 wxFontBundleBase::GetFaceForFont(const wxFontMgrFontRefData& font) const
 {
-    wxASSERT_MSG( font.GetFaceName().empty() || font.GetFaceName() == GetName(),
-                  _T("calling GetFaceForFont for incompatible font") );
+    wxASSERT_MSG( font.GetFaceName().empty() ||
+                  GetName().CmpNoCase(font.GetFaceName()) == 0,
+                  wxT("calling GetFaceForFont for incompatible font") );
 
     int type = FaceType_Regular;
 
@@ -119,8 +123,8 @@ wxFontBundleBase::GetFaceForFont(const wxFontMgrFontRefData& font) const
         type |= FaceType_Bold;
 
     // FIXME -- this should read "if ( font->GetStyle() == wxITALIC )",
-    // but since MGL neither DFB supports slant, we try to display it with
-    // italic face (better than nothing...)
+    // but since DFB doesn't support slant, we try to display it with italic
+    // face (better than nothing...)
     if ( font.GetStyle() == wxITALIC || font.GetStyle() == wxSLANT )
     {
         if ( HasFace((FaceType)(type | FaceType_Italic)) )
@@ -129,13 +133,15 @@ wxFontBundleBase::GetFaceForFont(const wxFontMgrFontRefData& font) const
 
     if ( !HasFace((FaceType)type) )
     {
+        // if we can't get the exact font requested, substitute it with
+        // some other variant:
         for (int i = 0; i < FaceType_Max; i++)
         {
             if ( HasFace((FaceType)i) )
                 return GetFace((FaceType)i);
         }
 
-        wxFAIL_MSG( _T("no face") );
+        wxFAIL_MSG( wxT("no face") );
         return NULL;
     }
 
@@ -219,19 +225,15 @@ void wxFontsManagerBase::AddBundle(wxFontBundle *bundle)
 // ----------------------------------------------------------------------------
 
 wxFontMgrFontRefData::wxFontMgrFontRefData(int size,
-                                           int family,
-                                           int style,
-                                           int weight,
+                                           wxFontFamily family,
+                                           wxFontStyle style,
+                                           wxFontWeight weight,
                                            bool underlined,
                                            const wxString& faceName,
                                            wxFontEncoding encoding)
 {
-    if ( family == wxDEFAULT )
-        family = wxSWISS;
-    if ( style == wxDEFAULT )
-        style = wxNORMAL;
-    if ( weight == wxDEFAULT )
-        weight = wxNORMAL;
+    if ( family == wxFONTFAMILY_DEFAULT )
+        family = wxFONTFAMILY_SWISS;
     if ( size == wxDEFAULT )
         size = 12;
 
@@ -243,8 +245,6 @@ wxFontMgrFontRefData::wxFontMgrFontRefData(int size,
     m_info.underlined = underlined;
     m_info.encoding = encoding;
 
-    m_noAA = false;
-
     m_fontFace = NULL;
     m_fontBundle = NULL;
     m_fontValid = false;
@@ -253,7 +253,6 @@ wxFontMgrFontRefData::wxFontMgrFontRefData(int size,
 wxFontMgrFontRefData::wxFontMgrFontRefData(const wxFontMgrFontRefData& data)
 {
     m_info = data.m_info;
-    m_noAA = data.m_noAA;
 
     m_fontFace = data.m_fontFace;
     m_fontBundle = data.m_fontBundle;
@@ -279,7 +278,7 @@ wxFontMgrFontRefData::GetFontInstance(float scale, bool antialiased) const
 {
     wxConstCast(this, wxFontMgrFontRefData)->EnsureValidFont();
     return m_fontFace->GetFontInstance(m_info.pointSize * scale,
-                                       antialiased && !m_noAA);
+                                       antialiased);
 }
 
 void wxFontMgrFontRefData::SetPointSize(int pointSize)
@@ -288,21 +287,21 @@ void wxFontMgrFontRefData::SetPointSize(int pointSize)
     m_fontValid = false;
 }
 
-void wxFontMgrFontRefData::SetFamily(int family)
+void wxFontMgrFontRefData::SetFamily(wxFontFamily family)
 {
-    m_info.family = (wxFontFamily)family;
+    m_info.family = family;
     m_fontValid = false;
 }
 
-void wxFontMgrFontRefData::SetStyle(int style)
+void wxFontMgrFontRefData::SetStyle(wxFontStyle style)
 {
-    m_info.style = (wxFontStyle)style;
+    m_info.style = style;
     m_fontValid = false;
 }
 
-void wxFontMgrFontRefData::SetWeight(int weight)
+void wxFontMgrFontRefData::SetWeight(wxFontWeight weight)
 {
-    m_info.weight = (wxFontWeight)weight;
+    m_info.weight = weight;
     m_fontValid = false;
 }
 
@@ -324,12 +323,6 @@ void wxFontMgrFontRefData::SetEncoding(wxFontEncoding encoding)
     m_fontValid = false;
 }
 
-void wxFontMgrFontRefData::SetNoAntiAliasing(bool no)
-{
-    m_noAA = no;
-}
-
-
 void wxFontMgrFontRefData::EnsureValidFont()
 {
     if ( !m_fontValid )