use wxIsNullDouble instead of comparing m_ration with 0

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

diff --git a/src/common/dobjcmn.cpp b/src/common/dobjcmn.cpp
index 820989a6f48fe5fcd9b7467291c407a67b2cab69..99e3947c72072bb8e4ca7467859d24f179de616b 100644 (file)
--- a/src/common/dobjcmn.cpp
+++ b/src/common/dobjcmn.cpp
@@ -5,8 +5,8 @@
 // Modified by:
 // Created:     19.10.99
 // RCS-ID:      $Id$
-// Copyright:   (c) wxWindows Team
-// Licence:     wxWindows license
+// Copyright:   (c) wxWidgets Team
+// Licence:     wxWindows licence
 ///////////////////////////////////////////////////////////////////////////////
 
 // ============================================================================
@@ -17,16 +17,14 @@
 // headers
 // ----------------------------------------------------------------------------
 
-#ifdef __GNUG__
-    #pragma implementation "dataobjbase.h"
-#endif
-
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__
     #pragma hdrstop
 #endif
 
+#if wxUSE_DATAOBJ
+
 #ifndef WX_PRECOMP
     #include "wx/app.h"
     #include "wx/debug.h"
@@ -40,7 +38,7 @@
 
 #include "wx/listimpl.cpp"
 
-WX_DEFINE_LIST(wxSimpleDataObjectList);
+WX_DEFINE_LIST(wxSimpleDataObjectList)
 
 // ----------------------------------------------------------------------------
 // globals
@@ -92,10 +90,20 @@ bool wxDataObjectBase::IsSupported(const wxDataFormat& format,
 // wxDataObjectComposite
 // ----------------------------------------------------------------------------
 
+wxDataObjectComposite::wxDataObjectComposite()
+{
+    m_preferred = 0;
+}
+
+wxDataObjectComposite::~wxDataObjectComposite()
+{
+    WX_CLEAR_LIST(wxSimpleDataObjectList, m_dataObjects);
+}
+
 wxDataObjectSimple *
 wxDataObjectComposite::GetObject(const wxDataFormat& format) const
 {
-    wxSimpleDataObjectList::Node *node = m_dataObjects.GetFirst();
+    wxSimpleDataObjectList::compatibility_iterator node = m_dataObjects.GetFirst();
     while ( node )
     {
         wxDataObjectSimple *dataObj = node->GetData();
@@ -122,7 +130,7 @@ void wxDataObjectComposite::Add(wxDataObjectSimple *dataObject, bool preferred)
 wxDataFormat
 wxDataObjectComposite::GetPreferredFormat(Direction WXUNUSED(dir)) const
 {
-    wxSimpleDataObjectList::Node *node = m_dataObjects.Item( m_preferred );
+    wxSimpleDataObjectList::compatibility_iterator node = m_dataObjects.Item( m_preferred );
 
     wxCHECK_MSG( node, wxFormatInvalid, wxT("no preferred format") );
 
@@ -131,6 +139,45 @@ wxDataObjectComposite::GetPreferredFormat(Direction WXUNUSED(dir)) const
     return dataObj->GetFormat();
 }
 
+#if defined(__WXMSW__)
+
+size_t wxDataObjectComposite::GetBufferOffset( const wxDataFormat& format )
+{
+    wxDataObjectSimple *dataObj = GetObject(format);
+
+    wxCHECK_MSG( dataObj, 0,
+                 wxT("unsupported format in wxDataObjectComposite"));
+
+    return dataObj->GetBufferOffset( format );
+}
+
+
+const void* wxDataObjectComposite::GetSizeFromBuffer( const void* buffer,
+                                                      size_t* size,
+                                                      const wxDataFormat& format )
+{
+    wxDataObjectSimple *dataObj = GetObject(format);
+
+    wxCHECK_MSG( dataObj, NULL,
+                 wxT("unsupported format in wxDataObjectComposite"));
+
+    return dataObj->GetSizeFromBuffer( buffer, size, format );
+}
+
+
+void* wxDataObjectComposite::SetSizeInBuffer( void* buffer, size_t size,
+                                              const wxDataFormat& format )
+{
+    wxDataObjectSimple *dataObj = GetObject(format);
+
+    wxCHECK_MSG( dataObj, NULL,
+                 wxT("unsupported format in wxDataObjectComposite"));
+
+    return dataObj->SetSizeInBuffer( buffer, size, format );
+}
+
+#endif
+
 size_t wxDataObjectComposite::GetFormatCount(Direction WXUNUSED(dir)) const
 {
     // TODO what about the Get/Set only formats?
@@ -141,7 +188,7 @@ void wxDataObjectComposite::GetAllFormats(wxDataFormat *formats,
                                           Direction WXUNUSED(dir)) const
 {
     size_t n = 0;
-    wxSimpleDataObjectList::Node *node;
+    wxSimpleDataObjectList::compatibility_iterator node;
     for ( node = m_dataObjects.GetFirst(); node; node = node->GetNext() )
     {
         // TODO if ( !outputOnlyToo ) && this one counts ...
@@ -164,7 +211,7 @@ bool wxDataObjectComposite::GetDataHere(const wxDataFormat& format,
 {
     wxDataObjectSimple *dataObj = GetObject(format);
 
-    wxCHECK_MSG( dataObj, FALSE,
+    wxCHECK_MSG( dataObj, false,
                  wxT("unsupported format in wxDataObjectComposite"));
 
     return dataObj->GetDataHere(buf);
@@ -176,7 +223,7 @@ bool wxDataObjectComposite::SetData(const wxDataFormat& format,
 {
     wxDataObjectSimple *dataObj = GetObject(format);
 
-    wxCHECK_MSG( dataObj, FALSE,
+    wxCHECK_MSG( dataObj, false,
                  wxT("unsupported format in wxDataObjectComposite"));
 
     return dataObj->SetData(len, buf);
@@ -186,25 +233,108 @@ bool wxDataObjectComposite::SetData(const wxDataFormat& format,
 // wxTextDataObject
 // ----------------------------------------------------------------------------
 
+#if defined(__WXGTK20__) && wxUSE_UNICODE
+
+static inline wxMBConv& GetConv(const wxDataFormat& format)
+{
+    // use UTF8 for wxDF_UNICODETEXT and UCS4 for wxDF_TEXT
+    return format == wxDF_UNICODETEXT ? wxConvUTF8 : wxConvLibc;
+}
+
+size_t wxTextDataObject::GetDataSize(const wxDataFormat& format) const
+{
+    wxCharBuffer buffer = GetConv(format).cWX2MB( GetText().c_str() );
+    return buffer ? strlen(buffer) + 1 : 0;
+}
+
+bool wxTextDataObject::GetDataHere(const wxDataFormat& format, void *buf) const
+{
+    wxCharBuffer buffer = GetConv(format).cWX2MB( GetText().c_str() );
+    if ( !buffer )
+        return false;
+
+    strcpy( (char*) buf, buffer );
+
+    return true;
+}
+
+bool wxTextDataObject::SetData(const wxDataFormat& format,
+                               size_t WXUNUSED(len), const void *buf)
+{
+    wxWCharBuffer buffer = GetConv(format).cMB2WX((const char *)buf);
+    if ( !buffer )
+        return false;
+
+    SetText(buffer);
+
+    return true;
+}
+
+#elif wxUSE_UNICODE && defined(__WXMAC__)
+
+static wxMBConvUTF16 sUTF16Converter ;
+
+static inline wxMBConv& GetConv(const wxDataFormat& format)
+{
+    return format == wxDF_UNICODETEXT ? sUTF16Converter : (wxMBConv&) wxConvLocal;
+}
+
+size_t wxTextDataObject::GetDataSize(const wxDataFormat& format) const
+{
+    size_t len = GetConv(format).WC2MB( NULL , GetText().c_str() , 0 )  
+        + ( format == wxDF_UNICODETEXT ? 2 : 1 ) ;
+    return len ;
+}
+
+bool wxTextDataObject::GetDataHere(const wxDataFormat& format, void *buf) const
+{
+    wxCharBuffer buffer = GetConv(format).cWX2MB( GetText().c_str() );
+    if ( !buffer )
+        return false;
+
+    size_t len = GetConv(format).WC2MB( NULL , GetText().c_str() , 0 )  
+        + ( format == wxDF_UNICODETEXT ? 2 : 1 ) ;
+
+    memcpy( (char*) buf, (const char*) buffer , len ); // trailing (uni)char 0
+
+    return true;
+}
+
+bool wxTextDataObject::SetData(const wxDataFormat& format,
+                               size_t WXUNUSED(len), const void *buf)
+{
+    wxWCharBuffer buffer = GetConv(format).cMB2WX((const char *)buf);
+    if ( !buffer )
+        return false;
+    
+    SetText(buffer);
+    
+    return true;
+}
+
+#else
+
 size_t wxTextDataObject::GetDataSize() const
 {
-    return GetTextLength();
+    return GetTextLength() * sizeof(wxChar);
 }
 
 bool wxTextDataObject::GetDataHere(void *buf) const
 {
-    strcpy((char *)buf, GetText().mb_str());
+    wxStrcpy((wxChar *)buf, GetText().c_str());
 
-    return TRUE;
+    return true;
 }
 
 bool wxTextDataObject::SetData(size_t WXUNUSED(len), const void *buf)
 {
-    SetText(wxString((const char *)buf));
+    SetText(wxString((const wxChar *)buf));
 
-    return TRUE;
+    return true;
 }
 
+#endif
+
 // ----------------------------------------------------------------------------
 // wxFileDataObjectBase
 // ----------------------------------------------------------------------------
@@ -296,11 +426,11 @@ bool wxCustomDataObject::GetDataHere(void *buf) const
 {
     void *data = GetData();
     if ( !data )
-        return FALSE;
+        return false;
 
     memcpy(buf, data, GetSize());
 
-    return TRUE;
+    return true;
 }
 
 bool wxCustomDataObject::SetData(size_t size, const void *buf)
@@ -309,11 +439,11 @@ bool wxCustomDataObject::SetData(size_t size, const void *buf)
 
     m_data = Alloc(size);
     if ( !m_data )
-        return FALSE;
+        return false;
 
     memcpy(m_data, buf, m_size = size);
 
-    return TRUE;
+    return true;
 }
 
 // ============================================================================
@@ -364,5 +494,6 @@ wxDragResult wxFileDropTarget::OnData(wxCoord x, wxCoord y, wxDragResult def)
     return OnDropFiles(x, y, dobj->GetFilenames()) ? def : wxDragNone;
 }
 
-#endif
+#endif // wxUSE_DRAG_AND_DROP
 
+#endif // wxUSE_DATAOBJ