moving all dataview files to advanced

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

diff --git a/src/common/dobjcmn.cpp b/src/common/dobjcmn.cpp
index 675ebdf2c08e980da48ba842eb8d352647c3f400..9f6f29d84e33b914ac0663d8bab173e0c7da1cd2 100644 (file)
--- a/src/common/dobjcmn.cpp
+++ b/src/common/dobjcmn.cpp
@@ -18,13 +18,12 @@
 
 #if wxUSE_DATAOBJ
 
 
 #if wxUSE_DATAOBJ
 

+#include "wx/dataobj.h"
+

 #ifndef WX_PRECOMP
     #include "wx/app.h"
 #ifndef WX_PRECOMP
     #include "wx/app.h"

-    #include "wx/debug.h"

 #endif
 
 #endif
 

-#include "wx/dataobj.h"
-

 // ----------------------------------------------------------------------------
 // lists
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // lists
 // ----------------------------------------------------------------------------


@@ -86,6 +85,7 @@ bool wxDataObjectBase::IsSupported(const wxDataFormat& format,
 wxDataObjectComposite::wxDataObjectComposite()
 {
     m_preferred = 0;
 wxDataObjectComposite::wxDataObjectComposite()
 {
     m_preferred = 0;

+    m_receivedFormat = wxFormatInvalid;

 }
 
 wxDataObjectComposite::~wxDataObjectComposite()
 }
 
 wxDataObjectComposite::~wxDataObjectComposite()


@@ -94,32 +94,56 @@ wxDataObjectComposite::~wxDataObjectComposite()
 }
 
 wxDataObjectSimple *
 }
 
 wxDataObjectSimple *

-wxDataObjectComposite::GetObject(const wxDataFormat& format) const
+wxDataObjectComposite::GetObject(const wxDataFormat& format, wxDataObjectBase::Direction dir) const

 {
     wxSimpleDataObjectList::compatibility_iterator node = m_dataObjects.GetFirst();
 {
     wxSimpleDataObjectList::compatibility_iterator node = m_dataObjects.GetFirst();

+

     while ( node )
     {
         wxDataObjectSimple *dataObj = node->GetData();
 
     while ( node )
     {
         wxDataObjectSimple *dataObj = node->GetData();
 

-        if ( dataObj->GetFormat() == format )
-        {
-            return dataObj;
-        }
-
+        if (dataObj->IsSupported(format,dir))
+          return dataObj;

         node = node->GetNext();
     }
         node = node->GetNext();
     }

-
-    return (wxDataObjectSimple *)NULL;
+    return NULL;

 }
 
 void wxDataObjectComposite::Add(wxDataObjectSimple *dataObject, bool preferred)
 {
 }
 
 void wxDataObjectComposite::Add(wxDataObjectSimple *dataObject, bool preferred)
 {

+   // check if the data format of the passed object already exists in the composite data object, if this is the case
+   // do not add the data object and display a message in debug mode (otherwise this method fails silently):
+   // start checking if the data format exists for the 'GET' direction:
+    size_t indexFormats;
+    size_t noOfFormats;
+    wxDataFormat* formats;
+
+    noOfFormats = dataObject->GetFormatCount(wxDataObjectBase::Get);
+    formats = new wxDataFormat[noOfFormats];
+    for (indexFormats=0; indexFormats<noOfFormats; ++indexFormats)
+      wxCHECK_RET(this->GetObject(formats[indexFormats],wxDataObjectBase::Get) == NULL,
+                  _("The data format for the GET-direction of the to be added data object already exists"));
+    delete[] formats;
+   // do the same with the 'SET' direction:
+    noOfFormats = dataObject->GetFormatCount(wxDataObjectBase::Set);
+
+    formats = new wxDataFormat[noOfFormats];
+    for (indexFormats=0; indexFormats<noOfFormats; ++indexFormats)
+      wxCHECK_RET(this->GetObject(formats[indexFormats],wxDataObjectBase::Set) == NULL,
+                  _("The data format for the SET-direction of the to be added data object already exists"));
+    delete[] formats;
+
+   // if we reach this location the data object can simply be appended:

     if ( preferred )
         m_preferred = m_dataObjects.GetCount();
     if ( preferred )
         m_preferred = m_dataObjects.GetCount();

-

     m_dataObjects.Append( dataObject );
 }
 
     m_dataObjects.Append( dataObject );
 }
 

+wxDataFormat wxDataObjectComposite::GetReceivedFormat() const
+{
+    return m_receivedFormat;
+}
+

 wxDataFormat
 wxDataObjectComposite::GetPreferredFormat(Direction WXUNUSED(dir)) const
 {
 wxDataFormat
 wxDataObjectComposite::GetPreferredFormat(Direction WXUNUSED(dir)) const
 {


@@ -171,21 +195,33 @@ void* wxDataObjectComposite::SetSizeInBuffer( void* buffer, size_t size,
 
 #endif
 
 
 #endif
 

-size_t wxDataObjectComposite::GetFormatCount(Direction WXUNUSED(dir)) const
+size_t wxDataObjectComposite::GetFormatCount(Direction dir) const

 {
 {

-    // TODO what about the Get/Set only formats?
-    return m_dataObjects.GetCount();
+    size_t n = 0;
+
+    // NOTE: some wxDataObjectSimple objects may return a number greater than 1
+    //       from GetFormatCount(): this is the case of e.g. wxTextDataObject
+    //       under wxMac and wxGTK
+    wxSimpleDataObjectList::compatibility_iterator node;
+    for ( node = m_dataObjects.GetFirst(); node; node = node->GetNext() )
+        n += node->GetData()->GetFormatCount(dir);
+
+    return n;

 }
 
 void wxDataObjectComposite::GetAllFormats(wxDataFormat *formats,
 }
 
 void wxDataObjectComposite::GetAllFormats(wxDataFormat *formats,

-                                          Direction WXUNUSED(dir)) const
+                                          Direction dir) const

 {
 {

-    size_t n = 0;
+    size_t index(0);

     wxSimpleDataObjectList::compatibility_iterator node;
     wxSimpleDataObjectList::compatibility_iterator node;

+

     for ( node = m_dataObjects.GetFirst(); node; node = node->GetNext() )
     {
     for ( node = m_dataObjects.GetFirst(); node; node = node->GetNext() )
     {

-        // TODO if ( !outputOnlyToo ) && this one counts ...
-        formats[n++] = node->GetData()->GetFormat();
+        // NOTE: some wxDataObjectSimple objects may return more than 1 format
+        //       from GetAllFormats(): this is the case of e.g. wxTextDataObject
+        //       under wxMac and wxGTK
+        node->GetData()->GetAllFormats(formats+index, dir);
+        index += node->GetData()->GetFormatCount(dir);

     }
 }
 
     }
 }
 


@@ -219,6 +255,7 @@ bool wxDataObjectComposite::SetData(const wxDataFormat& format,
     wxCHECK_MSG( dataObj, false,
                  wxT("unsupported format in wxDataObjectComposite"));
 
     wxCHECK_MSG( dataObj, false,
                  wxT("unsupported format in wxDataObjectComposite"));
 

+    m_receivedFormat = format;

     return dataObj->SetData( len, buf );
 }
 
     return dataObj->SetData( len, buf );
 }
 


@@ -226,7 +263,13 @@ bool wxDataObjectComposite::SetData(const wxDataFormat& format,
 // wxTextDataObject
 // ----------------------------------------------------------------------------
 
 // wxTextDataObject
 // ----------------------------------------------------------------------------
 

-#if defined(__WXGTK20__) && wxUSE_UNICODE
+#ifdef wxNEEDS_UTF8_FOR_TEXT_DATAOBJ
+
+// FIXME-UTF8: we should be able to merge wchar_t and UTF-8 versions once we
+//             have a way to get UTF-8 string (and its length) in both builds
+//             without loss of efficiency (i.e. extra buffer copy/strlen call)
+
+#if wxUSE_UNICODE_WCHAR

 
 static inline wxMBConv& GetConv(const wxDataFormat& format)
 {
 
 static inline wxMBConv& GetConv(const wxDataFormat& format)
 {


@@ -269,7 +312,70 @@ bool wxTextDataObject::SetData(const wxDataFormat& format,
     return true;
 }
 
     return true;
 }
 

-#elif wxUSE_UNICODE && defined(__WXMAC__)
+#else // wxUSE_UNICODE_UTF8
+
+size_t wxTextDataObject::GetDataSize(const wxDataFormat& format) const
+{
+    if ( format == wxDF_UNICODETEXT || wxLocaleIsUtf8 )
+    {
+        return m_text.utf8_length();
+    }
+    else // wxDF_TEXT
+    {
+        const wxCharBuffer buf(wxConvLocal.cWC2MB(m_text.wc_str()));
+        return buf ? strlen(buf) : 0;
+    }
+}
+
+bool wxTextDataObject::GetDataHere(const wxDataFormat& format, void *buf) const
+{
+    if ( !buf )
+        return false;
+
+    if ( format == wxDF_UNICODETEXT || wxLocaleIsUtf8 )
+    {
+        memcpy(buf, m_text.utf8_str(), m_text.utf8_length());
+    }
+    else // wxDF_TEXT
+    {
+        const wxCharBuffer bufLocal(wxConvLocal.cWC2MB(m_text.wc_str()));
+        if ( !bufLocal )
+            return false;
+
+        memcpy(buf, bufLocal, strlen(bufLocal));
+    }
+
+    return true;
+}
+
+bool wxTextDataObject::SetData(const wxDataFormat& format,
+                               size_t len, const void *buf_)
+{
+    const char * const buf = static_cast<const char *>(buf_);
+
+    if ( buf == NULL )
+        return false;
+
+    if ( format == wxDF_UNICODETEXT || wxLocaleIsUtf8 )
+    {
+        // normally the data is in UTF-8 so we could use FromUTF8Unchecked()
+        // but it's not absolutely clear what GTK+ does if the clipboard data
+        // is not in UTF-8 so do an extra check for tranquility, it shouldn't
+        // matter much if we lose a bit of performance when pasting from
+        // clipboard
+        m_text = wxString::FromUTF8(buf, len);
+    }
+    else // wxDF_TEXT, convert from current (non-UTF8) locale
+    {
+        m_text = wxConvLocal.cMB2WC(buf, len, NULL);
+    }
+
+    return true;
+}
+
+#endif // wxUSE_UNICODE_WCHAR/wxUSE_UNICODE_UTF8
+
+#elif defined(wxNEEDS_UTF16_FOR_TEXT_DATAOBJ)

 
 static wxMBConvUTF16 sUTF16Converter;
 
 
 static wxMBConvUTF16 sUTF16Converter;
 


@@ -318,7 +424,7 @@ bool wxTextDataObject::SetData(const wxDataFormat& format,
     return true;
 }
 
     return true;
 }
 

-#else
+#else // !wxNEEDS_UTF{8,16}_FOR_TEXT_DATAOBJ

 
 size_t wxTextDataObject::GetDataSize() const
 {
 
 size_t wxTextDataObject::GetDataSize() const
 {


@@ -327,66 +433,21 @@ size_t wxTextDataObject::GetDataSize() const
 
 bool wxTextDataObject::GetDataHere(void *buf) const
 {
 
 bool wxTextDataObject::GetDataHere(void *buf) const
 {

-    wxStrcpy( (wxChar*)buf, GetText().c_str() );
+    // NOTE: use wxTmemcpy() instead of wxStrncpy() to allow
+    //       retrieval of strings with embedded NULLs
+    wxTmemcpy( (wxChar*)buf, GetText().c_str(), GetTextLength() );

 
     return true;
 }
 
 
     return true;
 }
 

-bool wxTextDataObject::SetData(size_t WXUNUSED(len), const void *buf)
+bool wxTextDataObject::SetData(size_t len, const void *buf)

 {
 {

-    SetText( wxString((const wxChar*)buf) );
+    SetText( wxString((const wxChar*)buf, len/sizeof(wxChar)) );

 
     return true;
 }
 
 
     return true;
 }
 

-#endif
-
-// ----------------------------------------------------------------------------
-// wxFileDataObjectBase
-// ----------------------------------------------------------------------------
-
-// VZ: I don't need this in MSW finally, so if it is needed in wxGTK, it should
-//     be moved to gtk/dataobj.cpp
-#if 0
-
-wxString wxFileDataObjectBase::GetFilenames() const
-{
-    wxString str;
-    size_t count = m_filenames.GetCount();
-    for ( size_t n = 0; n < count; n++ )
-    {
-        str << m_filenames[n] << wxT('\0');
-    }
-
-    return str;
-}
-
-void wxFileDataObjectBase::SetFilenames(const wxChar* filenames)
-{
-    m_filenames.Empty();
-
-    wxString current;
-    for ( const wxChar *pc = filenames; ; pc++ )
-    {
-        if ( *pc )
-        {
-            current += *pc;
-        }
-        else
-        {
-            if ( !current )
-            {
-                // 2 consecutive NULs - this is the end of the string
-                break;
-            }
-
-            m_filenames.Add(current);
-            current.Empty();
-        }
-    }
-}
-
-#endif
+#endif // different wxTextDataObject implementations

 
 // ----------------------------------------------------------------------------
 // wxCustomDataObject
 
 // ----------------------------------------------------------------------------
 // wxCustomDataObject


@@ -421,7 +482,7 @@ void wxCustomDataObject::Free()
 {
     delete [] (char*)m_data;
     m_size = 0;
 {
     delete [] (char*)m_data;
     m_size = 0;

-    m_data = (void*)NULL;
+    m_data = NULL;

 }
 
 size_t wxCustomDataObject::GetDataSize() const
 }
 
 size_t wxCustomDataObject::GetDataSize() const