simplified and cleaned up wxGTK's focus handling

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

diff --git a/src/common/variant.cpp b/src/common/variant.cpp
index f30f580dbbe7038a19d1e32af5fbd14795d611e9..b71f67801d286d0520a55e838fc5ababd0fe0cb9 100644 (file)
--- a/src/common/variant.cpp
+++ b/src/common/variant.cpp
@@ -53,7 +53,7 @@ wxVariant WXDLLIMPEXP_BASE wxNullVariant;
 
 
 #include "wx/listimpl.cpp"
-WX_DEFINE_LIST(wxVariantList);
+WX_DEFINE_LIST(wxVariantList)
 
 /*
  * wxVariant
@@ -130,7 +130,6 @@ bool wxVariant::operator!= (const wxVariant& variant) const
     return (!(*this == variant));
 }
 
-
 wxString wxVariant::MakeString() const
 {
     if (!IsNull())
@@ -177,6 +176,30 @@ void wxVariant::UnRef()
     }
 }
 
+bool wxVariant::Unshare()
+{
+    if ( m_data && m_data->GetRefCount() > 1 )
+    {
+        // note that ref is not going to be destroyed in this case...
+        const wxVariantData* ref = m_data;
+        UnRef();
+
+        // ... so we can still access it
+        m_data = ref->Clone();
+
+        wxASSERT_MSG( (m_data && m_data->GetRefCount() == 1),
+                  _T("wxVariant::AllocExclusive() failed.") );
+
+        if (!m_data || m_data->GetRefCount() != 1)
+            return false;
+        else
+            return true;
+    }
+    //else: data is null or ref count is 1, so we are exclusive owners of m_refData anyhow
+    else
+        return true;
+}
+
 
 // Returns a string representing the type of the variant,
 // e.g. "string", "bool", "list", "double", "long"
@@ -227,6 +250,8 @@ public:
     virtual bool Write(wxOutputStream &str) const;
 #endif // wxUSE_STREAMS
 
+    wxVariantData* Clone() const { return new wxVariantDataLong(m_value); }
+
     virtual wxString GetType() const { return wxT("long"); }
 
 protected:
@@ -377,6 +402,7 @@ public:
 #endif // wxUSE_STREAMS
     virtual wxString GetType() const { return wxT("double"); }
 
+    wxVariantData* Clone() const { return new wxVariantDoubleData(m_value); }
 protected:
     double m_value;
 };
@@ -514,6 +540,7 @@ public:
 #endif // wxUSE_STREAMS
     virtual wxString GetType() const { return wxT("bool"); }
 
+    wxVariantData* Clone() const { return new wxVariantDataBool(m_value); }
 protected:
     bool m_value;
 };
@@ -651,6 +678,7 @@ public:
     virtual bool Write(wxOutputStream& str) const;
 #endif // wxUSE_STREAMS
     virtual wxString GetType() const { return wxT("char"); }
+    wxVariantData* Clone() const { return new wxVariantDataChar(m_value); }
 
 protected:
     wxUniChar m_value;
@@ -802,6 +830,7 @@ public:
     virtual bool Write(wxOutputStream& str) const;
 #endif // wxUSE_STREAMS
     virtual wxString GetType() const { return wxT("string"); }
+    wxVariantData* Clone() const { return new wxVariantDataString(m_value); }
 
 protected:
     wxString m_value;
@@ -955,10 +984,10 @@ public:
 #endif
     virtual bool Read(wxString& str);
     virtual wxString GetType() const ;
-    virtual wxVariantData* Clone() { return new wxVariantDataWxObjectPtr; }
+    virtual wxVariantData* Clone() const { return new wxVariantDataWxObjectPtr(m_value); }
 
     virtual wxClassInfo* GetValueClassInfo();
-    
+
 protected:
     wxObject* m_value;
 };
@@ -975,13 +1004,13 @@ bool wxVariantDataWxObjectPtr::Eq(wxVariantData& data) const
 wxString wxVariantDataWxObjectPtr::GetType() const
 {
     wxString returnVal(wxT("wxObject*"));
-    
+
     if (m_value)
     {
         returnVal = m_value->GetClassInfo()->GetClassName();
         returnVal += wxT("*");
     }
-    
+
     return returnVal;
 }
 
@@ -1076,7 +1105,7 @@ public:
 #endif
     virtual bool Read(wxString& str);
     virtual wxString GetType() const { return wxT("void*"); }
-    virtual wxVariantData* Clone() { return new wxVariantDataVoidPtr; }
+    virtual wxVariantData* Clone() const { return new wxVariantDataVoidPtr(m_value); }
 
 protected:
     void* m_value;
@@ -1170,15 +1199,6 @@ class wxVariantDataDateTime: public wxVariantData
 public:
     wxVariantDataDateTime() { }
     wxVariantDataDateTime(const wxDateTime& value) { m_value = value; }
-#if wxUSE_ODBC
-    wxVariantDataDateTime(const TIME_STRUCT* valptr)
-        { m_value = wxDateTime(valptr->hour, valptr->minute, valptr->second); }
-    wxVariantDataDateTime(const DATE_STRUCT* valptr)
-        { m_value = wxDateTime(valptr->day, (wxDateTime::Month) (valptr->month - 1),valptr->year); }
-    wxVariantDataDateTime(const TIMESTAMP_STRUCT* valptr)
-        { m_value = wxDateTime(valptr->day, (wxDateTime::Month) (valptr->month - 1), valptr->year,
-                        valptr->hour, valptr->minute, valptr->second, (wxDateTime::wxDateTime_t)valptr->fraction ); }
-#endif //ODBC
 
     inline wxDateTime GetValue() const { return m_value; }
     inline void SetValue(const wxDateTime& value) { m_value = value; }
@@ -1193,7 +1213,7 @@ public:
 #endif
     virtual bool Read(wxString& str);
     virtual wxString GetType() const { return wxT("datetime"); }
-    virtual wxVariantData* Clone() { return new wxVariantDataDateTime; }
+    virtual wxVariantData* Clone() const { return new wxVariantDataDateTime(m_value); }
 
 protected:
     wxDateTime m_value;
@@ -1252,26 +1272,6 @@ wxVariant::wxVariant(const wxDateTime& val, const wxString& name) // Date
     m_name = name;
 }
 
-#if wxUSE_ODBC
-wxVariant::wxVariant(const TIME_STRUCT* valptr, const wxString& name) // Date
-{
-    m_data = new wxVariantDataDateTime(valptr);
-    m_name = name;
-}
-
-wxVariant::wxVariant(const TIMESTAMP_STRUCT* valptr, const wxString& name) // Date
-{
-    m_data = new wxVariantDataDateTime(valptr);
-    m_name = name;
-}
-
-wxVariant::wxVariant(const DATE_STRUCT* valptr, const wxString& name) // Date
-{
-    m_data = new wxVariantDataDateTime(valptr);
-    m_name = name;
-}
-#endif // wxUSE_ODBC
-
 bool wxVariant::operator== (const wxDateTime& value) const
 {
     wxDateTime thisValue;
@@ -1300,27 +1300,6 @@ void wxVariant::operator= (const wxDateTime& value)
     }
 }
 
-#if wxUSE_ODBC
-void wxVariant::operator= (const DATE_STRUCT* value)
-{
-    UnRef();
-    m_data = new wxVariantDataDateTime(value);
-}
-
-void wxVariant::operator= (const TIME_STRUCT* value)
-{
-    UnRef();
-    m_data = new wxVariantDataDateTime(value);
-}
-
-void wxVariant::operator= (const TIMESTAMP_STRUCT* value)
-{
-    UnRef();
-    m_data = new wxVariantDataDateTime(value);
-}
-
-#endif // wxUSE_ODBC
-
 wxDateTime wxVariant::GetDateTime() const
 {
     wxDateTime value;
@@ -1357,7 +1336,7 @@ public:
 #endif
     virtual bool Read(wxString& str);
     virtual wxString GetType() const { return wxT("arrstring"); }
-    virtual wxVariantData* Clone() { return new wxVariantDataArrayString; }
+    virtual wxVariantData* Clone() const { return new wxVariantDataArrayString(m_value); }
 
 protected:
     wxArrayString m_value;
@@ -1465,11 +1444,11 @@ class WXDLLIMPEXP_BASE wxVariantDataList: public wxVariantData
 {
 public:
     wxVariantDataList() {}
-    wxVariantDataList(const wxList& list);
+    wxVariantDataList(const wxVariantList& list);
     virtual ~wxVariantDataList();
 
-    wxList& GetValue() { return m_value; }
-    void SetValue(const wxList& value) ;
+    wxVariantList& GetValue() { return m_value; }
+    void SetValue(const wxVariantList& value) ;
 
     virtual bool Eq(wxVariantData& data) const;
 #if wxUSE_STD_IOSTREAM
@@ -1484,11 +1463,12 @@ public:
 
     void Clear();
 
+    wxVariantData* Clone() const { return new wxVariantDataList(m_value); }
 protected:
-    wxList  m_value;
+    wxVariantList  m_value;
 };
 
-wxVariantDataList::wxVariantDataList(const wxList& list)
+wxVariantDataList::wxVariantDataList(const wxVariantList& list)
 {
     SetValue(list);
 }
@@ -1498,13 +1478,13 @@ wxVariantDataList::~wxVariantDataList()
     Clear();
 }
 
-void wxVariantDataList::SetValue(const wxList& value)
+void wxVariantDataList::SetValue(const wxVariantList& value)
 {
     Clear();
-    wxList::compatibility_iterator node = value.GetFirst();
+    wxVariantList::compatibility_iterator node = value.GetFirst();
     while (node)
     {
-        wxVariant* var = (wxVariant*) node->GetData();
+        wxVariant* var = node->GetData();
         m_value.Append(new wxVariant(*var));
         node = node->GetNext();
     }
@@ -1512,10 +1492,10 @@ void wxVariantDataList::SetValue(const wxList& value)
 
 void wxVariantDataList::Clear()
 {
-    wxList::compatibility_iterator node = m_value.GetFirst();
+    wxVariantList::compatibility_iterator node = m_value.GetFirst();
     while (node)
     {
-        wxVariant* var = (wxVariant*) node->GetData();
+        wxVariant* var = node->GetData();
         delete var;
         node = node->GetNext();
     }
@@ -1527,12 +1507,12 @@ bool wxVariantDataList::Eq(wxVariantData& data) const
     wxASSERT_MSG( (data.GetType() == wxT("list")), wxT("wxVariantDataList::Eq: argument mismatch") );
 
     wxVariantDataList& listData = (wxVariantDataList&) data;
-    wxList::compatibility_iterator node1 = m_value.GetFirst();
-    wxList::compatibility_iterator node2 = listData.GetValue().GetFirst();
+    wxVariantList::compatibility_iterator node1 = m_value.GetFirst();
+    wxVariantList::compatibility_iterator node2 = listData.GetValue().GetFirst();
     while (node1 && node2)
     {
-        wxVariant* var1 = (wxVariant*) node1->GetData();
-        wxVariant* var2 = (wxVariant*) node2->GetData();
+        wxVariant* var1 = node1->GetData();
+        wxVariant* var2 = node2->GetData();
         if ((*var1) != (*var2))
             return false;
         node1 = node1->GetNext();
@@ -1555,10 +1535,10 @@ bool wxVariantDataList::Write(wxSTD ostream& str) const
 bool wxVariantDataList::Write(wxString& str) const
 {
     str = wxEmptyString;
-    wxList::compatibility_iterator node = m_value.GetFirst();
+    wxVariantList::compatibility_iterator node = m_value.GetFirst();
     while (node)
     {
-        wxVariant* var = (wxVariant*) node->GetData();
+        wxVariant* var = node->GetData();
         if (node != m_value.GetFirst())
           str += wxT(" ");
         wxString str1;
@@ -1587,13 +1567,13 @@ bool wxVariantDataList::Read(wxString& WXUNUSED(str))
 
 // wxVariant
 
-wxVariant::wxVariant(const wxList& val, const wxString& name) // List of variants
+wxVariant::wxVariant(const wxVariantList& val, const wxString& name) // List of variants
 {
     m_data = new wxVariantDataList(val);
     m_name = name;
 }
 
-bool wxVariant::operator== (const wxList& value) const
+bool wxVariant::operator== (const wxVariantList& value) const
 {
     wxASSERT_MSG( (GetType() == wxT("list")), wxT("Invalid type for == operator") );
 
@@ -1601,12 +1581,12 @@ bool wxVariant::operator== (const wxList& value) const
     return (GetData()->Eq(other));
 }
 
-bool wxVariant::operator!= (const wxList& value) const
+bool wxVariant::operator!= (const wxVariantList& value) const
 {
     return (!((*this) == value));
 }
 
-void wxVariant::operator= (const wxList& value)
+void wxVariant::operator= (const wxVariantList& value)
 {
     if (GetType() == wxT("list") &&
         m_data->GetRefCount() == 1)
@@ -1620,11 +1600,11 @@ void wxVariant::operator= (const wxList& value)
     }
 }
 
-wxList& wxVariant::GetList() const
+wxVariantList& wxVariant::GetList() const
 {
     wxASSERT( (GetType() == wxT("list")) );
 
-    return (wxList&) ((wxVariantDataList*) m_data)->GetValue();
+    return (wxVariantList&) ((wxVariantDataList*) m_data)->GetValue();
 }
 
 // Make empty list
@@ -1636,7 +1616,7 @@ void wxVariant::NullList()
 // Append to list
 void wxVariant::Append(const wxVariant& value)
 {
-    wxList& list = GetList();
+    wxVariantList& list = GetList();
 
     list.Append(new wxVariant(value));
 }
@@ -1644,7 +1624,7 @@ void wxVariant::Append(const wxVariant& value)
 // Insert at front of list
 void wxVariant::Insert(const wxVariant& value)
 {
-    wxList& list = GetList();
+    wxVariantList& list = GetList();
 
     list.Insert(new wxVariant(value));
 }
@@ -1652,12 +1632,12 @@ void wxVariant::Insert(const wxVariant& value)
 // Returns true if the variant is a member of the list
 bool wxVariant::Member(const wxVariant& value) const
 {
-    wxList& list = GetList();
+    wxVariantList& list = GetList();
 
-    wxList::compatibility_iterator node = list.GetFirst();
+    wxVariantList::compatibility_iterator node = list.GetFirst();
     while (node)
     {
-        wxVariant* other = (wxVariant*) node->GetData();
+        wxVariant* other = node->GetData();
         if (value == *other)
             return true;
         node = node->GetNext();
@@ -1668,11 +1648,11 @@ bool wxVariant::Member(const wxVariant& value) const
 // Deletes the nth element of the list
 bool wxVariant::Delete(size_t item)
 {
-    wxList& list = GetList();
+    wxVariantList& list = GetList();
 
     wxASSERT_MSG( (item < list.GetCount()), wxT("Invalid index to Delete") );
-    wxList::compatibility_iterator node = list.Item(item);
-    wxVariant* variant = (wxVariant*) node->GetData();
+    wxVariantList::compatibility_iterator node = list.Item(item);
+    wxVariant* variant = node->GetData();
     delete variant;
     list.Erase(node);
     return true;
@@ -1703,7 +1683,7 @@ wxVariant wxVariant::operator[] (size_t idx) const
     {
         wxVariantDataList* data = (wxVariantDataList*) m_data;
         wxASSERT_MSG( (idx < data->GetValue().GetCount()), wxT("Invalid index for array") );
-        return * (wxVariant*) (data->GetValue().Item(idx)->GetData());
+        return *(data->GetValue().Item(idx)->GetData());
     }
     return wxNullVariant;
 }
@@ -1718,7 +1698,7 @@ wxVariant& wxVariant::operator[] (size_t idx)
     wxVariantDataList* data = (wxVariantDataList*) m_data;
     wxASSERT_MSG( (idx < data->GetValue().GetCount()), wxT("Invalid index for array") );
 
-    return * (wxVariant*) (data->GetValue().Item(idx)->GetData());
+    return * (data->GetValue().Item(idx)->GetData());
 }
 
 // Return the number of elements in a list