///////////////////////////////////////////////////////////////////////////////
-// Name: dataobj.cpp
+// Name: src/gtk/dataobj.cpp
// Purpose: wxDataObject class
// Author: Robert Roebling
// Id: $Id$
// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
-#ifdef __GNUG__
- #pragma implementation "dataobj.h"
-#endif
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
+#if wxUSE_DATAOBJ
#include "wx/dataobj.h"
-#include "wx/app.h"
-#include "wx/debug.h"
-#include "wx/mstream.h"
-#include "wx/image.h"
-#include "gdk/gdk.h"
+#ifndef WX_PRECOMP
+ #include "wx/log.h"
+ #include "wx/app.h"
+ #include "wx/image.h"
+#endif
+#include "wx/mstream.h"
+#include "wx/uri.h"
+
+#include "wx/gtk/private.h"
//-------------------------------------------------------------------------
// global data
//-------------------------------------------------------------------------
GdkAtom g_textAtom = 0;
+GdkAtom g_altTextAtom = 0;
GdkAtom g_pngAtom = 0;
GdkAtom g_fileAtom = 0;
wxDataFormat::wxDataFormat()
{
- PrepareFormats();
+ // do *not* call PrepareFormats() from here for 2 reasons:
+ //
+ // 1. we will have time to do it later because some other Set function
+ // must be called before we really need them
+ //
+ // 2. doing so prevents us from declaring global wxDataFormats because
+ // calling PrepareFormats (and thus gdk_atom_intern) before GDK is
+ // initialised will result in a crash
m_type = wxDF_INVALID;
m_format = (GdkAtom) 0;
}
SetType( type );
}
-wxDataFormat::wxDataFormat( const wxChar *id )
-{
- PrepareFormats();
- SetId( id );
-}
-
-wxDataFormat::wxDataFormat( const wxString &id )
+void wxDataFormat::InitFromString( const wxString &id )
{
PrepareFormats();
SetId( id );
void wxDataFormat::SetType( wxDataFormatId type )
{
+ PrepareFormats();
+
m_type = type;
- if (m_type == wxDF_TEXT)
+#if wxUSE_UNICODE
+ if (m_type == wxDF_UNICODETEXT)
+ m_format = g_textAtom;
+ else if (m_type == wxDF_TEXT)
+ m_format = g_altTextAtom;
+#else
+ if (m_type == wxDF_TEXT || m_type == wxDF_UNICODETEXT)
m_format = g_textAtom;
+#endif
else
if (m_type == wxDF_BITMAP)
m_format = g_pngAtom;
wxString wxDataFormat::GetId() const
{
- wxString ret( gdk_atom_name( m_format ) ); // this will convert from ascii to Unicode
- return ret;
+ wxGtkString atom_name(gdk_atom_name(m_format));
+ return wxString::FromAscii(atom_name);
}
void wxDataFormat::SetId( NativeFormat format )
{
+ PrepareFormats();
m_format = format;
if (m_format == g_textAtom)
+#if wxUSE_UNICODE
+ m_type = wxDF_UNICODETEXT;
+#else
+ m_type = wxDF_TEXT;
+#endif
+ else
+ if (m_format == g_altTextAtom)
m_type = wxDF_TEXT;
else
if (m_format == g_pngAtom)
m_type = wxDF_PRIVATE;
}
-void wxDataFormat::SetId( const wxChar *id )
+void wxDataFormat::SetId( const wxString& id )
{
+ PrepareFormats();
m_type = wxDF_PRIVATE;
- wxString tmp( id );
- m_format = gdk_atom_intern( wxMBSTRINGCAST tmp.mbc_str(), FALSE ); // what is the string cast for?
+ m_format = gdk_atom_intern( id.ToAscii(), FALSE );
}
void wxDataFormat::PrepareFormats()
{
- if (!g_textAtom)
- g_textAtom = gdk_atom_intern( "STRING", FALSE );
- if (!g_pngAtom)
+ // VZ: GNOME included in RedHat 6.1 uses the MIME types below and not the
+ // atoms STRING and file:ALL as the old code was, but normal X apps
+ // use STRING for text selection when transfering the data via
+ // clipboard, for example, so do use STRING for now (GNOME apps will
+ // probably support STRING as well for compatibility anyhow), but use
+ // text/uri-list for file dnd because compatibility is not important
+ // here (with whom?)
+ if (!g_textAtom)
+#if wxUSE_UNICODE
+ g_textAtom = gdk_atom_intern( "UTF8_STRING", FALSE );
+ g_altTextAtom = gdk_atom_intern( "STRING", FALSE );
+#else
+ g_textAtom = gdk_atom_intern( "STRING" /* "text/plain" */, FALSE );
+#endif
+ if (!g_pngAtom)
g_pngAtom = gdk_atom_intern( "image/png", FALSE );
- if (!g_fileAtom)
- g_fileAtom = gdk_atom_intern( "file:ALL", FALSE );
+ if (!g_fileAtom)
+ g_fileAtom = gdk_atom_intern( "text/uri-list", FALSE );
}
//-------------------------------------------------------------------------
// wxDataObject
//-------------------------------------------------------------------------
-IMPLEMENT_ABSTRACT_CLASS( wxDataObject, wxObject )
-
wxDataObject::wxDataObject()
{
}
wxDataObject::~wxDataObject()
{
+ // dtor is empty but needed for Darwin and AIX -- otherwise it doesn't link
}
-bool wxDataObject::IsSupportedFormat(const wxDataFormat& format) const
+bool wxDataObject::IsSupportedFormat(const wxDataFormat& format, Direction dir) const
{
- size_t nFormatCount = GetFormatCount();
- if ( nFormatCount == 1 ) {
+ size_t nFormatCount = GetFormatCount(dir);
+ if ( nFormatCount == 1 )
+ {
return format == GetPreferredFormat();
}
- else {
+ else
+ {
wxDataFormat *formats = new wxDataFormat[nFormatCount];
- GetAllFormats(formats);
+ GetAllFormats(formats,dir);
size_t n;
- for ( n = 0; n < nFormatCount; n++ ) {
+ for ( n = 0; n < nFormatCount; n++ )
+ {
if ( formats[n] == format )
break;
}
}
}
-
// ----------------------------------------------------------------------------
// wxTextDataObject
// ----------------------------------------------------------------------------
-IMPLEMENT_DYNAMIC_CLASS( wxTextDataObject, wxDataObject )
-
-wxTextDataObject::wxTextDataObject()
-{
-}
-
-wxTextDataObject::wxTextDataObject(const wxString& strText)
- : m_strText(strText)
-{
-}
-
-size_t wxTextDataObject::GetDataSize(const wxDataFormat& format) const
-{
- return m_strText.Len() + 1; // +1 for trailing '\0'of course
-}
-
-bool wxTextDataObject::GetDataHere(const wxDataFormat& format, void *buf) const
-{
- memcpy(buf, m_strText.c_str(), GetDataSize(format));
- return TRUE;
-}
-
-bool wxTextDataObject::SetData(const wxDataFormat& format, const void *buf)
-{
- m_strText = (const wxChar *)buf;
- return TRUE;
+#if defined(__WXGTK20__) && wxUSE_UNICODE
+void wxTextDataObject::GetAllFormats(wxDataFormat *formats, wxDataObjectBase::Direction dir) const
+{
+ *formats++ = GetPreferredFormat();
+ *formats = g_altTextAtom;
}
+#endif
// ----------------------------------------------------------------------------
// wxFileDataObject
// ----------------------------------------------------------------------------
-IMPLEMENT_DYNAMIC_CLASS( wxFileDataObject, wxDataObject )
-
-wxFileDataObject::wxFileDataObject()
+bool wxFileDataObject::GetDataHere(void *buf) const
{
-}
+ wxString filenames;
-void wxFileDataObject::AddFile( const wxString &file )
-{
- m_files += file;
- m_files += (wxChar)0;
-}
+ for (size_t i = 0; i < m_filenames.GetCount(); i++)
+ {
+ filenames += wxT("file:");
+ filenames += m_filenames[i];
+ filenames += wxT("\r\n");
+ }
-wxString wxFileDataObject::GetFiles() const
-{
- return m_files;
+ memcpy( buf, filenames.mbc_str(), filenames.length() + 1 );
+
+ return true;
}
-bool wxFileDataObject::GetDataHere(const wxDataFormat& format, void *buf) const
+size_t wxFileDataObject::GetDataSize() const
{
- if (format == wxDF_FILENAME)
+ size_t res = 0;
+
+ for (size_t i = 0; i < m_filenames.GetCount(); i++)
{
- memcpy( buf, m_files.mbc_str(), m_files.Len() + 1 );
- return TRUE;
+ // This is junk in UTF-8
+ res += m_filenames[i].length();
+ res += 5 + 2; // "file:" (5) + "\r\n" (2)
}
-
- return FALSE;
+
+ return res + 1;
}
-size_t wxFileDataObject::GetDataSize(const wxDataFormat& format) const
+bool wxFileDataObject::SetData(size_t WXUNUSED(size), const void *buf)
{
- if (format != wxDF_FILENAME) return 0;
+ // we get data in the text/uri-list format, i.e. as a sequence of URIs
+ // (filenames prefixed by "file:") delimited by "\r\n". size includes
+ // the trailing zero (in theory, not for Nautilus in early GNOME
+ // versions).
+
+ m_filenames.Empty();
+
+ const gchar *nexttemp = (const gchar*) buf;
+ for ( ; ; )
+ {
+ int len = 0;
+ const gchar *temp = nexttemp;
+ for (;;)
+ {
+ if (temp[len] == 0)
+ {
+ if (len > 0)
+ {
+ // if an app omits '\r''\n'
+ nexttemp = temp+len;
+ break;
+ }
+
+ return true;
+ }
+ if (temp[len] == '\r')
+ {
+ if (temp[len+1] == '\n')
+ nexttemp = temp+len+2;
+ else
+ nexttemp = temp+len+1;
+ break;
+ }
+ len++;
+ }
+
+ if (len == 0)
+ break;
+
+ // required to give it a trailing zero
+ gchar *uri = g_strndup( temp, len );
- return m_files.Len() + 1;
+ gchar *fn = g_filename_from_uri( uri, NULL, NULL );
+
+ g_free( uri );
+
+ if (fn)
+ {
+ AddFile( wxConvFileName->cMB2WX( fn ) );
+ g_free( fn );
+ }
+ }
+
+ return true;
}
-bool wxFileDataObject::SetData(const wxDataFormat& format, const void *buf)
+void wxFileDataObject::AddFile( const wxString &filename )
{
- if (format != wxDF_FILENAME)
- return FALSE;
-
- m_files = (char*)(buf); // this is so ugly, I cannot look at it
-
- return TRUE;
+ m_filenames.Add( filename );
}
// ----------------------------------------------------------------------------
// wxBitmapDataObject
// ----------------------------------------------------------------------------
-IMPLEMENT_DYNAMIC_CLASS( wxBitmapDataObject, wxDataObject )
-
wxBitmapDataObject::wxBitmapDataObject()
{
- m_pngData = (void*)NULL;
- m_pngSize = 0;
+ Init();
}
wxBitmapDataObject::wxBitmapDataObject( const wxBitmap& bitmap )
+ : wxBitmapDataObjectBase(bitmap)
{
- m_pngData = (void*)NULL;
- m_pngSize = 0;
- m_bitmap = bitmap;
+ Init();
+
DoConvertToPng();
}
wxBitmapDataObject::~wxBitmapDataObject()
{
- if (m_pngData)
- delete[] m_pngData;
+ Clear();
}
void wxBitmapDataObject::SetBitmap( const wxBitmap &bitmap )
{
- if (m_pngData)
- delete[] m_pngData;
- m_pngData = (void*)NULL;
- m_pngSize = 0;
-
- m_bitmap = bitmap;
- DoConvertToPng();
-}
+ ClearAll();
-size_t wxBitmapDataObject::GetDataSize(const wxDataFormat& format) const
-{
- if (format != wxDF_BITMAP) return 0;
-
- return m_pngSize;
+ wxBitmapDataObjectBase::SetBitmap(bitmap);
+
+ DoConvertToPng();
}
-bool wxBitmapDataObject::GetDataHere(const wxDataFormat& format, void *buf) const
+bool wxBitmapDataObject::GetDataHere(void *buf) const
{
- if (format != wxDF_BITMAP) return FALSE;
-
- if (m_pngSize > 0)
+ if ( !m_pngSize )
{
- memcpy(buf, m_pngData, m_pngSize);
- return TRUE;
+ wxFAIL_MSG( wxT("attempt to copy empty bitmap failed") );
+
+ return false;
}
-
- return FALSE;
-}
-bool wxBitmapDataObject::SetData(const wxDataFormat& format, const void *buf)
-{
- if (m_pngData) delete[] m_pngData;
- m_pngData = (void*) NULL;
- m_pngSize = 0;
- m_bitmap = wxNullBitmap;
-
- return FALSE;
-}
+ memcpy(buf, m_pngData, m_pngSize);
-void wxBitmapDataObject::SetPngData(const void *buf, size_t size)
-{
- if (m_pngData) delete[] m_pngData;
- m_pngSize = size;
- m_pngData = (void*) new char[m_pngSize];
-
- memcpy( m_pngData, buf, m_pngSize );
-
- wxMemoryInputStream mstream( (char*) m_pngData, m_pngSize );
- wxImage image;
- wxPNGHandler handler;
- handler.LoadFile( &image, mstream );
- m_bitmap = image.ConvertToBitmap();
+ return true;
}
-void wxBitmapDataObject::DoConvertToPng()
+bool wxBitmapDataObject::SetData(size_t size, const void *buf)
{
- if (!m_bitmap.Ok()) return;
-
- wxImage image( m_bitmap );
- wxPNGHandler handler;
-
- wxCountingOutputStream count;
- handler.SaveFile( &image, count );
- m_pngSize = count.GetSize() + 100; // sometimes the size seems to vary ???
- m_pngData = (void*) new char[m_pngSize];
-
- wxMemoryOutputStream mstream( (char*) m_pngData, m_pngSize );
- handler.SaveFile( &image, mstream );
-}
+ Clear();
-// ----------------------------------------------------------------------------
-// wxPrivateDataObject
-// ----------------------------------------------------------------------------
+ wxCHECK_MSG( wxImage::FindHandler(wxBITMAP_TYPE_PNG) != NULL,
+ false, wxT("You must call wxImage::AddHandler(new wxPNGHandler); to be able to use clipboard with bitmaps!") );
-IMPLEMENT_CLASS( wxPrivateDataObject, wxDataObject )
+ m_pngSize = size;
+ m_pngData = malloc(m_pngSize);
-void wxPrivateDataObject::Free()
-{
- if ( m_data )
- free(m_data);
-}
+ memcpy(m_pngData, buf, m_pngSize);
-wxPrivateDataObject::wxPrivateDataObject()
-{
- wxString id = wxT("application/");
- id += wxTheApp->GetAppName();
+ wxMemoryInputStream mstream((char*) m_pngData, m_pngSize);
+ wxImage image;
+ if ( !image.LoadFile( mstream, wxBITMAP_TYPE_PNG ) )
+ {
+ return false;
+ }
- m_format.SetId( id );
+ m_bitmap = wxBitmap(image);
- m_size = 0;
- m_data = (void *)NULL;
+ return m_bitmap.Ok();
}
-void wxPrivateDataObject::SetData( const void *data, size_t size )
+void wxBitmapDataObject::DoConvertToPng()
{
- Free();
+ if ( !m_bitmap.Ok() )
+ return;
- m_size = size;
- m_data = malloc(size);
+ wxCHECK_RET( wxImage::FindHandler(wxBITMAP_TYPE_PNG) != NULL,
+ wxT("You must call wxImage::AddHandler(new wxPNGHandler); to be able to use clipboard with bitmaps!") );
- memcpy( m_data, data, size );
-}
+ wxImage image = m_bitmap.ConvertToImage();
-void wxPrivateDataObject::WriteData( void *dest ) const
-{
- WriteData( m_data, dest );
-}
+ wxCountingOutputStream count;
+ image.SaveFile(count, wxBITMAP_TYPE_PNG);
-size_t wxPrivateDataObject::GetSize() const
-{
- return m_size;
-}
+ m_pngSize = count.GetSize() + 100; // sometimes the size seems to vary ???
+ m_pngData = malloc(m_pngSize);
-void wxPrivateDataObject::WriteData( const void *data, void *dest ) const
-{
- memcpy( dest, data, GetSize() );
+ wxMemoryOutputStream mstream((char*) m_pngData, m_pngSize);
+ image.SaveFile(mstream, wxBITMAP_TYPE_PNG);
}
+#endif // wxUSE_DATAOBJ
projects / wxWidgets.git / blobdiff