X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/3f364be84b91d4e19729634ebf0b119145303a35..39987096b3aa3e1bec4f69a5793780f7ea2dd914:/src/common/dobjcmn.cpp diff --git a/src/common/dobjcmn.cpp b/src/common/dobjcmn.cpp index f806dcdec6..cbed32d72f 100644 --- a/src/common/dobjcmn.cpp +++ b/src/common/dobjcmn.cpp @@ -1,36 +1,27 @@ /////////////////////////////////////////////////////////////////////////////// -// Name: common/dobjcmn.cpp +// Name: src/common/dobjcmn.cpp // Purpose: implementation of data object methods common to all platforms // Author: Vadim Zeitlin, Robert Roebling // Modified by: // Created: 19.10.99 // RCS-ID: $Id$ -// Copyright: (c) wxWindows Team -// Licence: wxWindows license +// Copyright: (c) wxWidgets Team +// Licence: wxWindows licence /////////////////////////////////////////////////////////////////////////////// -// ============================================================================ -// declarations -// ============================================================================ - -// ---------------------------------------------------------------------------- -// headers -// ---------------------------------------------------------------------------- - -#ifdef __GNUG__ - #pragma implementation "dataobjbase.h" -#endif - +// For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" #ifdef __BORLANDC__ #pragma hdrstop #endif +#if wxUSE_DATAOBJ + #ifndef WX_PRECOMP #include "wx/app.h" #include "wx/debug.h" -#endif // WX_PRECOMP +#endif #include "wx/dataobj.h" @@ -40,7 +31,14 @@ #include "wx/listimpl.cpp" -WX_DEFINE_LIST(wxSimpleDataObjectList); +WX_DEFINE_LIST(wxSimpleDataObjectList) + +// ---------------------------------------------------------------------------- +// globals +// ---------------------------------------------------------------------------- + +static wxDataFormat dataFormatInvalid; +WXDLLEXPORT const wxDataFormat& wxFormatInvalid = dataFormatInvalid; // ============================================================================ // implementation @@ -54,14 +52,51 @@ wxDataObjectBase::~wxDataObjectBase() { } +bool wxDataObjectBase::IsSupported(const wxDataFormat& format, + Direction dir) const +{ + size_t nFormatCount = GetFormatCount( dir ); + if ( nFormatCount == 1 ) + { + return format == GetPreferredFormat( dir ); + } + else + { + wxDataFormat *formats = new wxDataFormat[nFormatCount]; + GetAllFormats( formats, dir ); + + size_t n; + for ( n = 0; n < nFormatCount; n++ ) + { + if ( formats[n] == format ) + break; + } + + delete [] formats; + + // found? + return n < nFormatCount; + } +} + // ---------------------------------------------------------------------------- // 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(); @@ -88,15 +123,54 @@ 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, wxDF_INVALID, wxT("no preferred format") ); + wxCHECK_MSG( node, wxFormatInvalid, wxT("no preferred format") ); wxDataObjectSimple* dataObj = node->GetData(); 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? @@ -107,7 +181,7 @@ 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 ... @@ -128,53 +202,150 @@ size_t wxDataObjectComposite::GetDataSize(const wxDataFormat& format) const bool wxDataObjectComposite::GetDataHere(const wxDataFormat& format, void *buf) const { - wxDataObjectSimple *dataObj = GetObject(format); + wxDataObjectSimple *dataObj = GetObject( format ); - wxCHECK_MSG( dataObj, FALSE, + wxCHECK_MSG( dataObj, false, wxT("unsupported format in wxDataObjectComposite")); - return dataObj->GetDataHere(buf); + return dataObj->GetDataHere( buf ); } bool wxDataObjectComposite::SetData(const wxDataFormat& format, size_t len, const void *buf) { - wxDataObjectSimple *dataObj = GetObject(format); + wxDataObjectSimple *dataObj = GetObject( format ); - wxCHECK_MSG( dataObj, FALSE, + wxCHECK_MSG( dataObj, false, wxT("unsupported format in wxDataObjectComposite")); - return dataObj->SetData(len, buf); + return dataObj->SetData( len, buf ); } // ---------------------------------------------------------------------------- // 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 ) : 0; +} + +bool wxTextDataObject::GetDataHere(const wxDataFormat& format, void *buf) const +{ + if ( buf == NULL ) + return false; + + wxCharBuffer buffer = GetConv(format).cWX2MB( GetText().c_str() ); + + strcpy( (char*)buf, buffer ); + + return true; +} + +bool wxTextDataObject::SetData(const wxDataFormat& format, + size_t WXUNUSED(len), const void *buf) +{ + if ( buf == NULL ) + return false; + + wxWCharBuffer buffer = GetConv(format).cMB2WX( (const char*)buf ); + + SetText( buffer ); + + return true; +} + +#elif wxUSE_UNICODE && defined(__WXMAC__) + +static wxMBConvUTF16 sUTF16Converter; + +static inline wxMBConv& GetConv(const wxDataFormat& format) +{ + return + format == wxDF_UNICODETEXT + ? (wxMBConv&) sUTF16Converter + : (wxMBConv&) wxConvLocal; +} + +size_t wxTextDataObject::GetDataSize(const wxDataFormat& format) const +{ + size_t len = GetConv(format).WC2MB( NULL, GetText().c_str(), 0 ); + len += (format == wxDF_UNICODETEXT ? 2 : 1); + + return len; +} + +bool wxTextDataObject::GetDataHere(const wxDataFormat& format, void *buf) const +{ + if ( buf == NULL ) + return false; + + wxCharBuffer buffer = GetConv(format).cWX2MB( GetText().c_str() ); + + size_t len = GetConv(format).WC2MB( NULL, GetText().c_str(), 0 ); + len += (format == wxDF_UNICODETEXT ? 2 : 1); + + // trailing (uni)char 0 + memcpy( (char*)buf, (const char*)buffer, len ); + + return true; +} + +bool wxTextDataObject::SetData(const wxDataFormat& format, + size_t WXUNUSED(len), const void *buf) +{ + if ( buf == NULL ) + return false; + + wxWCharBuffer buffer = GetConv(format).cMB2WX( (const char*)buf ); + + 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 // ---------------------------------------------------------------------------- +// 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; @@ -212,10 +383,19 @@ void wxFileDataObjectBase::SetFilenames(const wxChar* filenames) } } +#endif + // ---------------------------------------------------------------------------- // wxCustomDataObject // ---------------------------------------------------------------------------- +wxCustomDataObject::wxCustomDataObject(const wxDataFormat& format) + : wxDataObjectSimple(format) +{ + m_data = NULL; + m_size = 0; +} + wxCustomDataObject::~wxCustomDataObject() { Free(); @@ -236,9 +416,9 @@ void *wxCustomDataObject::Alloc(size_t size) void wxCustomDataObject::Free() { - delete [] m_data; + delete [] (char*)m_data; m_size = 0; - m_data = (void *)NULL; + m_data = (void*)NULL; } size_t wxCustomDataObject::GetDataSize() const @@ -248,25 +428,80 @@ size_t wxCustomDataObject::GetDataSize() const bool wxCustomDataObject::GetDataHere(void *buf) const { + if ( buf == NULL ) + return false; + void *data = GetData(); - if ( !data ) - return FALSE; + if ( data == NULL ) + return false; - memcpy(buf, data, GetSize()); + memcpy( buf, data, GetSize() ); - return TRUE; + return true; } -bool wxCustomDataObject::SetData(size_t len, const void *buf) +bool wxCustomDataObject::SetData(size_t size, const void *buf) { Free(); m_data = Alloc(size); - if ( !m_data ) - return FALSE; + if ( m_data == NULL ) + return false; - memcpy(m_data, buf, m_size = len); + m_size = size; + memcpy( m_data, buf, m_size ); - return TRUE; + return true; } +// ============================================================================ +// some common dnd related code +// ============================================================================ + +#if wxUSE_DRAG_AND_DROP + +#include "wx/dnd.h" + +// ---------------------------------------------------------------------------- +// wxTextDropTarget +// ---------------------------------------------------------------------------- + +// NB: we can't use "new" in ctor initializer lists because this provokes an +// internal compiler error with VC++ 5.0 (hey, even gcc compiles this!), +// so use SetDataObject() instead + +wxTextDropTarget::wxTextDropTarget() +{ + SetDataObject(new wxTextDataObject); +} + +wxDragResult wxTextDropTarget::OnData(wxCoord x, wxCoord y, wxDragResult def) +{ + if ( !GetData() ) + return wxDragNone; + + wxTextDataObject *dobj = (wxTextDataObject *)m_dataObject; + return OnDropText( x, y, dobj->GetText() ) ? def : wxDragNone; +} + +// ---------------------------------------------------------------------------- +// wxFileDropTarget +// ---------------------------------------------------------------------------- + +wxFileDropTarget::wxFileDropTarget() +{ + SetDataObject(new wxFileDataObject); +} + +wxDragResult wxFileDropTarget::OnData(wxCoord x, wxCoord y, wxDragResult def) +{ + if ( !GetData() ) + return wxDragNone; + + wxFileDataObject *dobj = (wxFileDataObject *)m_dataObject; + return OnDropFiles( x, y, dobj->GetFilenames() ) ? def : wxDragNone; +} + +#endif // wxUSE_DRAG_AND_DROP + +#endif // wxUSE_DATAOBJ