/////////////////////////////////////////////////////////////////////////////
-// Name: clipbrd.cpp
+// Name: src/msw/clipbrd.cpp
// Purpose: Clipboard functionality
// Author: Julian Smart
// Modified by:
// Created: 04/01/98
// RCS-ID: $Id$
-// Copyright: (c) Julian Smart and Markus Holzem
-// Licence: wxWindows license
+// Copyright: (c) Julian Smart
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// ===========================================================================
// headers
// ---------------------------------------------------------------------------
-#ifdef __GNUG__
- #pragma implementation "clipbrd.h"
-#endif
-
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#pragma hdrstop
#endif
-#ifndef WX_PRECOMP
- #include "wx/setup.h"
-#endif
-
#if wxUSE_CLIPBOARD
+#include "wx/clipbrd.h"
+
#ifndef WX_PRECOMP
#include "wx/object.h"
#include "wx/event.h"
#include "wx/frame.h"
#include "wx/bitmap.h"
#include "wx/utils.h"
+ #include "wx/intl.h"
+ #include "wx/log.h"
+ #include "wx/dataobj.h"
#endif
#if wxUSE_METAFILE
#include "wx/metafile.h"
#endif
-#include "wx/log.h"
-#include "wx/clipbrd.h"
#include <string.h>
-#include <windows.h>
#include "wx/msw/private.h"
-#include "wx/msw/dib.h"
-
-// wxDataObject is tied to OLE/drag and drop implementation,
-// therefore so is wxClipboard :-(
-#if wxUSE_DRAG_AND_DROP
- #include "wx/dataobj.h"
+#include "wx/msw/ole/oleutils.h"
- static bool wxSetClipboardData(wxDataObject *data);
+#if wxUSE_WXDIB
+ #include "wx/msw/dib.h"
#endif
-#ifdef __WIN16__
- #define memcpy hmemcpy
+// wxDataObject is tied to OLE/drag and drop implementation, therefore so are
+// the functions using wxDataObject in wxClipboard
+//#define wxUSE_DATAOBJ wxUSE_DRAG_AND_DROP
+
+#if wxUSE_OLE && !defined(__WXWINCE__)
+ // use OLE clipboard
+ #define wxUSE_OLE_CLIPBOARD 1
+#else // !wxUSE_DATAOBJ
+ // use Win clipboard API
+ #define wxUSE_OLE_CLIPBOARD 0
#endif
+#if wxUSE_OLE_CLIPBOARD
+ #include <ole2.h>
+#endif // wxUSE_OLE_CLIPBOARD
+
// ===========================================================================
// implementation
// ===========================================================================
// old-style clipboard functions using Windows API
// ---------------------------------------------------------------------------
-static bool gs_wxClipboardIsOpen = FALSE;
+static bool gs_wxClipboardIsOpen = false;
+static int gs_htmlcfid = 0;
bool wxOpenClipboard()
{
- wxCHECK_MSG( !gs_wxClipboardIsOpen, TRUE, "clipboard already opened." );
+ wxCHECK_MSG( !gs_wxClipboardIsOpen, true, wxT("clipboard already opened.") );
wxWindow *win = wxTheApp->GetTopWindow();
if ( win )
gs_wxClipboardIsOpen = ::OpenClipboard((HWND)win->GetHWND()) != 0;
if ( !gs_wxClipboardIsOpen )
+ {
wxLogSysError(_("Failed to open the clipboard."));
+ }
return gs_wxClipboardIsOpen;
}
else
{
- wxLogDebug("Can not open clipboard without a main window,");
+ wxLogDebug(wxT("Cannot open clipboard without a main window."));
- return FALSE;
+ return false;
}
}
bool wxCloseClipboard()
{
- wxCHECK_MSG( gs_wxClipboardIsOpen, FALSE, "clipboard is not opened" );
+ wxCHECK_MSG( gs_wxClipboardIsOpen, false, wxT("clipboard is not opened") );
- gs_wxClipboardIsOpen = FALSE;
+ gs_wxClipboardIsOpen = false;
if ( ::CloseClipboard() == 0 )
{
wxLogSysError(_("Failed to close the clipboard."));
- return FALSE;
+ return false;
}
- return TRUE;
+ return true;
}
bool wxEmptyClipboard()
{
wxLogSysError(_("Failed to empty the clipboard."));
- return FALSE;
+ return false;
}
- return TRUE;
+ return true;
}
bool wxIsClipboardOpened()
bool wxIsClipboardFormatAvailable(wxDataFormat dataFormat)
{
- return ::IsClipboardFormatAvailable(dataFormat) != 0;
-}
+ wxDataFormat::NativeFormat cf = dataFormat.GetFormatId();
+ if (cf == wxDF_HTML)
+ cf = gs_htmlcfid;
-#if wxUSE_DRAG_AND_DROP
-static bool wxSetClipboardData(wxDataObject *data)
-{
- size_t size = data->GetDataSize();
- HANDLE hGlobal = ::GlobalAlloc(GMEM_MOVEABLE | GMEM_DDESHARE, size);
- if ( !hGlobal )
+ if ( ::IsClipboardFormatAvailable(cf) )
{
- wxLogSysError(_("Failed to allocate %dKb of memory for clipboard "
- "transfer."), size / 1024);
-
- return FALSE;
+ // ok from the first try
+ return true;
}
- LPVOID lpGlobalMemory = ::GlobalLock(hGlobal);
-
- data->GetDataHere(lpGlobalMemory);
-
- GlobalUnlock(hGlobal);
-
- wxDataFormat format = data->GetPreferredFormat();
- if ( !::SetClipboardData(format, hGlobal) )
+ // for several standard formats, we can convert from some other ones too
+ switch ( cf )
{
- wxLogSysError(_("Failed to set clipboard data in format %s"),
- wxDataObject::GetFormatName(format));
+ // for bitmaps, DIBs will also do
+ case CF_BITMAP:
+ return ::IsClipboardFormatAvailable(CF_DIB) != 0;
- return FALSE;
- }
+#if wxUSE_ENH_METAFILE && !defined(__WXWINCE__)
+ case CF_METAFILEPICT:
+ return ::IsClipboardFormatAvailable(CF_ENHMETAFILE) != 0;
+#endif // wxUSE_ENH_METAFILE
- return TRUE;
+ default:
+ return false;
+ }
}
-#endif // wxUSE_DRAG_AND_DROP
+
bool wxSetClipboardData(wxDataFormat dataFormat,
const void *data,
SelectObject(hdcSrc, old);
DeleteDC(hdcMem);
DeleteDC(hdcSrc);
- return FALSE;
+ return false;
}
HBITMAP old1 = (HBITMAP) SelectObject(hdcMem, hBitmap);
break;
}
+#if wxUSE_WXDIB
case wxDF_DIB:
{
-#if wxUSE_IMAGE_LOADING_IN_MSW
wxBitmap *bitmap = (wxBitmap *)data;
- HBITMAP hBitmap = (HBITMAP)bitmap->GetHBITMAP();
- // NULL palette means to use the system one
- HANDLE hDIB = BitmapToDIB(hBitmap, (HPALETTE)NULL);
- handle = SetClipboardData(CF_DIB, hDIB);
-#endif
+
+ if ( bitmap && bitmap->IsOk() )
+ {
+ wxDIB dib(*bitmap);
+ if ( dib.IsOk() )
+ {
+ handle = ::SetClipboardData(CF_DIB, dib.Detach());
+ }
+ }
break;
}
+#endif
-#if wxUSE_METAFILE
+ // VZ: I'm told that this code works, but it doesn't seem to work for me
+ // and, anyhow, I'd be highly surprised if it did. So I leave it here
+ // but IMNSHO it is completely broken.
+#if wxUSE_METAFILE && !defined(wxMETAFILE_IS_ENH) && !defined(__WXWINCE__)
case wxDF_METAFILE:
{
wxMetafile *wxMF = (wxMetafile *)data;
handle = SetClipboardData(CF_METAFILEPICT, data);
break;
}
-#endif
+#endif // wxUSE_METAFILE
+
+#if wxUSE_ENH_METAFILE && !defined(__WXWINCE__)
+ case wxDF_ENHMETAFILE:
+ {
+ wxEnhMetaFile *emf = (wxEnhMetaFile *)data;
+ wxEnhMetaFile emfCopy = *emf;
+
+ handle = SetClipboardData(CF_ENHMETAFILE,
+ (void *)emfCopy.GetHENHMETAFILE());
+ }
+ break;
+#endif // wxUSE_ENH_METAFILE
+
case CF_SYLK:
case CF_DIF:
case CF_TIFF:
default:
{
wxLogError(_("Unsupported clipboard format."));
- return FALSE;
+ return false;
}
case wxDF_OEMTEXT:
handle = SetClipboardData(dataFormat, hGlobalMemory);
break;
}
+ // Only tested with Visual C++ 6.0 so far
+#if defined(__VISUALC__)
+ case wxDF_HTML:
+ {
+ char* html = (char *)data;
+
+ // Create temporary buffer for HTML header...
+ char *buf = new char [400 + strlen(html)];
+ if(!buf) return false;
+
+ // Create a template string for the HTML header...
+ strcpy(buf,
+ "Version:0.9\r\n"
+ "StartHTML:00000000\r\n"
+ "EndHTML:00000000\r\n"
+ "StartFragment:00000000\r\n"
+ "EndFragment:00000000\r\n"
+ "<html><body>\r\n"
+ "<!--StartFragment -->\r\n");
+
+ // Append the HTML...
+ strcat(buf, html);
+ strcat(buf, "\r\n");
+ // Finish up the HTML format...
+ strcat(buf,
+ "<!--EndFragment-->\r\n"
+ "</body>\r\n"
+ "</html>");
+
+ // Now go back, calculate all the lengths, and write out the
+ // necessary header information. Note, wsprintf() truncates the
+ // string when you overwrite it so you follow up with code to replace
+ // the 0 appended at the end with a '\r'...
+ char *ptr = strstr(buf, "StartHTML");
+ sprintf(ptr+10, "%08u", (unsigned)(strstr(buf, "<html>") - buf));
+ *(ptr+10+8) = '\r';
+
+ ptr = strstr(buf, "EndHTML");
+ sprintf(ptr+8, "%08u", (unsigned)strlen(buf));
+ *(ptr+8+8) = '\r';
+
+ ptr = strstr(buf, "StartFragment");
+ sprintf(ptr+14, "%08u", (unsigned)(strstr(buf, "<!--StartFrag") - buf));
+ *(ptr+14+8) = '\r';
+
+ ptr = strstr(buf, "EndFragment");
+ sprintf(ptr+12, "%08u", (unsigned)(strstr(buf, "<!--EndFrag") - buf));
+ *(ptr+12+8) = '\r';
+
+ // Now you have everything in place ready to put on the
+ // clipboard.
+
+ // Allocate global memory for transfer...
+ HGLOBAL hText = GlobalAlloc(GMEM_MOVEABLE |GMEM_DDESHARE, strlen(buf)+4);
+
+ // Put your string in the global memory...
+ ptr = (char *)GlobalLock(hText);
+ strcpy(ptr, buf);
+ GlobalUnlock(hText);
+
+ handle = ::SetClipboardData(gs_htmlcfid, hText);
+
+ // Free memory...
+ GlobalFree(hText);
+
+ // Clean up...
+ delete [] buf;
+ break;
+ }
+#endif
}
if ( handle == 0 )
{
wxLogSysError(_("Failed to set clipboard data."));
- return FALSE;
+ return false;
}
- return TRUE;
+ return true;
}
void *wxGetClipboardData(wxDataFormat dataFormat, long *len)
switch ( dataFormat )
{
+#ifndef __WXWINCE__
case wxDF_BITMAP:
{
BITMAP bm;
wxBM->SetWidth(bm.bmWidth);
wxBM->SetHeight(bm.bmHeight);
wxBM->SetDepth(bm.bmPlanes);
- wxBM->SetOk(TRUE);
retval = wxBM;
break;
}
-
+#endif
case wxDF_METAFILE:
case CF_SYLK:
case CF_DIF:
case CF_TIFF:
case CF_PALETTE:
case wxDF_DIB:
- {
- wxLogError(_("Unsupported clipboard format."));
- return FALSE;
- }
+ wxLogError(_("Unsupported clipboard format."));
+ return NULL;
case wxDF_OEMTEXT:
dataFormat = wxDF_TEXT;
if (!s)
break;
- LPSTR lpGlobalMemory = (LPSTR)::GlobalLock(hGlobalMemory);
+ LPSTR lpGlobalMemory = (LPSTR) GlobalLock(hGlobalMemory);
memcpy(s, lpGlobalMemory, hsize);
- ::GlobalUnlock(hGlobalMemory);
+ GlobalUnlock(hGlobalMemory);
retval = s;
break;
if ( !buf )
break;
- LPSTR lpGlobalMemory = (LPSTR)::GlobalLock(hGlobalMemory);
+ LPSTR lpGlobalMemory = (LPSTR) GlobalLock(hGlobalMemory);
memcpy(buf, lpGlobalMemory, size);
- ::GlobalUnlock(hGlobalMemory);
+ GlobalUnlock(hGlobalMemory);
retval = buf;
break;
wxDataFormat wxEnumClipboardFormats(wxDataFormat dataFormat)
{
- return ::EnumClipboardFormats(dataFormat);
+ return (wxDataFormat::NativeFormat)::EnumClipboardFormats(dataFormat);
}
-int wxRegisterClipboardFormat(char *formatName)
+int wxRegisterClipboardFormat(wxChar *formatName)
{
return ::RegisterClipboardFormat(formatName);
}
bool wxGetClipboardFormatName(wxDataFormat dataFormat,
- char *formatName,
+ wxChar *formatName,
int maxCount)
{
return ::GetClipboardFormatName((int)dataFormat, formatName, maxCount) > 0;
IMPLEMENT_DYNAMIC_CLASS(wxClipboard, wxObject)
-wxClipboard* wxTheClipboard = (wxClipboard *)NULL;
-
wxClipboard::wxClipboard()
{
+#if wxUSE_OLE_CLIPBOARD
+ wxOleInitialize();
+#endif
+
+ m_lastDataObject = NULL;
+ m_isOpened = false;
}
wxClipboard::~wxClipboard()
{
- Clear();
+ if ( m_lastDataObject )
+ {
+ Clear();
+ }
+
+#if wxUSE_OLE_CLIPBOARD
+ wxOleUninitialize();
+#endif
}
void wxClipboard::Clear()
{
+ if ( IsUsingPrimarySelection() )
+ return;
+
+#if wxUSE_OLE_CLIPBOARD
+ if (m_lastDataObject)
+ {
+ // don't touch data set by other applications
+ HRESULT hr = OleIsCurrentClipboard(m_lastDataObject);
+ if (S_OK == hr)
+ {
+ hr = OleSetClipboard(NULL);
+ if ( FAILED(hr) )
+ {
+ wxLogApiError(wxT("OleSetClipboard(NULL)"), hr);
+ }
+ }
+ m_lastDataObject = NULL;
+ }
+#endif // wxUSE_OLE_CLIPBOARD
+}
+
+bool wxClipboard::Flush()
+{
+#if wxUSE_OLE_CLIPBOARD
+ if (m_lastDataObject)
+ {
+ // don't touch data set by other applications
+ HRESULT hr = OleIsCurrentClipboard(m_lastDataObject);
+ m_lastDataObject = NULL;
+ if (S_OK == hr)
+ {
+ hr = OleFlushClipboard();
+ if ( FAILED(hr) )
+ {
+ wxLogApiError(wxT("OleFlushClipboard"), hr);
+
+ return false;
+ }
+ return true;
+ }
+ }
+ return false;
+#else // !wxUSE_OLE_CLIPBOARD
+ return false;
+#endif // wxUSE_OLE_CLIPBOARD/!wxUSE_OLE_CLIPBOARD
}
bool wxClipboard::Open()
{
+ // Get clipboard id for HTML format...
+ if(!gs_htmlcfid)
+ gs_htmlcfid = RegisterClipboardFormat(wxT("HTML Format"));
+
+ // OLE opens clipboard for us
+ m_isOpened = true;
+#if wxUSE_OLE_CLIPBOARD
+ return true;
+#else
return wxOpenClipboard();
+#endif
+}
+
+bool wxClipboard::IsOpened() const
+{
+#if wxUSE_OLE_CLIPBOARD
+ return m_isOpened;
+#else
+ return wxIsClipboardOpened();
+#endif
}
bool wxClipboard::SetData( wxDataObject *data )
{
+ if ( IsUsingPrimarySelection() )
+ return false;
+
+#if !wxUSE_OLE_CLIPBOARD
(void)wxEmptyClipboard();
+#endif // wxUSE_OLE_CLIPBOARD
if ( data )
return AddData(data);
else
- return TRUE;
+ return true;
}
bool wxClipboard::AddData( wxDataObject *data )
{
- wxCHECK_MSG( data, FALSE, "data is invalid" );
+ if ( IsUsingPrimarySelection() )
+ return false;
+
+ wxCHECK_MSG( data, false, wxT("data is invalid") );
+
+#if wxUSE_OLE_CLIPBOARD
+ HRESULT hr = OleSetClipboard(data->GetInterface());
+ if ( FAILED(hr) )
+ {
+ wxLogSysError(hr, _("Failed to put data on the clipboard"));
+
+ // don't free anything in this case
+
+ return false;
+ }
+
+ // we have to call either OleSetClipboard(NULL) or OleFlushClipboard() when
+ // using OLE clipboard when the app terminates - by default, we call
+ // OleSetClipboard(NULL) which won't waste RAM, but the app can call
+ // wxClipboard::Flush() to change this
+ m_lastDataObject = data->GetInterface();
+
+ // we have a problem here because we should delete wxDataObject, but we
+ // can't do it because IDataObject which we just gave to the clipboard
+ // would try to use it when it will need the data. IDataObject is ref
+ // counted and so doesn't suffer from such problem, so we release it now
+ // and tell it to delete wxDataObject when it is deleted itself.
+ data->SetAutoDelete();
-#if wxUSE_DRAG_AND_DROP
- wxCHECK_MSG( wxIsClipboardOpened(), FALSE, "clipboard not open" );
+ return true;
+#elif wxUSE_DATAOBJ
+ wxCHECK_MSG( wxIsClipboardOpened(), false, wxT("clipboard not open") );
- wxDataFormat format = data->GetFormat();
+ wxDataFormat format = data->GetPreferredFormat();
switch ( format )
{
{
wxBitmapDataObject* bitmapDataObject = (wxBitmapDataObject*) data;
wxBitmap bitmap(bitmapDataObject->GetBitmap());
- return wxSetClipboardData(data->GetFormat(), &bitmap);
+ return wxSetClipboardData(data->GetPreferredFormat(), &bitmap);
}
#if wxUSE_METAFILE
case wxDF_METAFILE:
{
- wxMetafileDataObject* metaFileDataObject =
+#if 1
+ // TODO
+ wxLogError(wxT("Not implemented because wxMetafileDataObject does not contain width and height values."));
+ return false;
+#else
+ wxMetafileDataObject* metaFileDataObject =
(wxMetafileDataObject*) data;
wxMetafile metaFile = metaFileDataObject->GetMetafile();
return wxSetClipboardData(wxDF_METAFILE, &metaFile,
metaFileDataObject->GetWidth(),
metaFileDataObject->GetHeight());
+#endif
}
#endif // wxUSE_METAFILE
default:
- return wxSetClipboardData(data);
+ {
+// This didn't compile, of course
+// return wxSetClipboardData(data);
+ // TODO
+ wxLogError(wxT("Not implemented."));
+ return false;
+ }
}
-#else // !wxUSE_DRAG_AND_DROP
- return FALSE;
-#endif // wxUSE_DRAG_AND_DROP/!wxUSE_DRAG_AND_DROP
+#else // !wxUSE_DATAOBJ
+ return false;
+#endif // wxUSE_DATAOBJ/!wxUSE_DATAOBJ
}
void wxClipboard::Close()
{
+ m_isOpened = false;
+ // OLE closes clipboard for us
+#if !wxUSE_OLE_CLIPBOARD
wxCloseClipboard();
+#endif
}
-bool wxClipboard::IsSupported( wxDataFormat format )
+bool wxClipboard::IsSupported( const wxDataFormat& format )
{
- return wxIsClipboardFormatAvailable(format);
+ return !IsUsingPrimarySelection() && wxIsClipboardFormatAvailable(format);
}
-bool wxClipboard::GetData( wxDataObject *data )
+bool wxClipboard::GetData( wxDataObject& data )
{
- wxCHECK_MSG( wxIsClipboardOpened(), FALSE, "clipboard not open" );
+ if ( IsUsingPrimarySelection() )
+ return false;
-#if wxUSE_DRAG_AND_DROP
- wxDataFormat format = data->GetFormat();
- switch ( format )
+#if wxUSE_OLE_CLIPBOARD
+ IDataObject *pDataObject = NULL;
+ HRESULT hr = OleGetClipboard(&pDataObject);
+ if ( FAILED(hr) || !pDataObject )
{
- case wxDF_TEXT:
- case wxDF_OEMTEXT:
+ wxLogSysError(hr, _("Failed to get data from the clipboard"));
+
+ return false;
+ }
+
+ // build the list of supported formats
+ size_t nFormats = data.GetFormatCount(wxDataObject::Set);
+ wxDataFormat format;
+ wxDataFormat *formats;
+ if ( nFormats == 1 )
+ {
+ // the most common case
+ formats = &format;
+ }
+ else
+ {
+ // bad luck, need to alloc mem
+ formats = new wxDataFormat[nFormats];
+ }
+
+ data.GetAllFormats(formats, wxDataObject::Set);
+
+ // get the data for the given formats
+ FORMATETC formatEtc;
+ CLIPFORMAT cf;
+ bool result = false;
+
+ // enumerate all explicit formats on the clipboard.
+ // note that this does not include implicit / synthetic (automatically
+ // converted) formats.
+#if wxDEBUG_LEVEL >= 2
+ // get the format enumerator
+ IEnumFORMATETC *pEnumFormatEtc = NULL;
+ hr = pDataObject->EnumFormatEtc(DATADIR_GET, &pEnumFormatEtc);
+ if ( FAILED(hr) || !pEnumFormatEtc )
+ {
+ wxLogSysError(hr,
+ _("Failed to retrieve the supported clipboard formats"));
+ }
+ else
+ {
+ // ask for the supported formats and see if there are any we support
+ for ( ;; )
{
- wxTextDataObject* textDataObject = (wxTextDataObject*) data;
- char* s = (char*) wxGetClipboardData(format);
- if ( s )
+ ULONG nCount;
+ hr = pEnumFormatEtc->Next(1, &formatEtc, &nCount);
+
+ // don't use FAILED() because S_FALSE would pass it
+ if ( hr != S_OK )
{
- textDataObject->SetText(s);
- delete[] s;
- return TRUE;
+ // no more formats
+ break;
}
- else
- return FALSE;
+
+ cf = formatEtc.cfFormat;
+
+ wxLogTrace(wxTRACE_OleCalls,
+ wxT("Object on the clipboard supports format %s."),
+ wxDataObject::GetFormatName(cf));
}
- case wxDF_BITMAP:
- case wxDF_DIB:
+ pEnumFormatEtc->Release();
+ }
+#endif // wxDEBUG_LEVEL >= 2
+
+ STGMEDIUM medium;
+ // stop at the first valid format found on the clipboard
+ for ( size_t n = 0; !result && (n < nFormats); n++ )
+ {
+ // convert to NativeFormat Id
+ cf = formats[n].GetFormatId();
+
+ if (cf == wxDF_HTML)
+ cf = gs_htmlcfid;
+ // if the format is not available, try the next one
+ // this test includes implicit / sythetic formats
+ if ( !::IsClipboardFormatAvailable(cf) )
+ continue;
+
+ formatEtc.cfFormat = cf;
+ formatEtc.ptd = NULL;
+ formatEtc.dwAspect = DVASPECT_CONTENT;
+ formatEtc.lindex = -1;
+
+ // use the appropriate tymed
+ switch ( formatEtc.cfFormat )
{
- wxBitmapDataObject* bitmapDataObject = (wxBitmapDataObject *)data;
- wxBitmap* bitmap = (wxBitmap *)wxGetClipboardData(data->GetFormat());
- if (bitmap)
+ case CF_BITMAP:
+ formatEtc.tymed = TYMED_GDI;
+ break;
+
+#ifndef __WXWINCE__
+ case CF_METAFILEPICT:
+ formatEtc.tymed = TYMED_MFPICT;
+ break;
+
+ case CF_ENHMETAFILE:
+ formatEtc.tymed = TYMED_ENHMF;
+ break;
+#endif
+
+ default:
+ formatEtc.tymed = TYMED_HGLOBAL;
+ }
+
+ // try to get data
+ hr = pDataObject->GetData(&formatEtc, &medium);
+ if ( FAILED(hr) )
+ {
+ // try other tymed for GDI objects
+ if ( formatEtc.cfFormat == CF_BITMAP )
{
- bitmapDataObject->SetBitmap(* bitmap);
- delete bitmap;
- return TRUE;
+ formatEtc.tymed = TYMED_HGLOBAL;
+ hr = pDataObject->GetData(&formatEtc, &medium);
}
- else
- return FALSE;
}
-#if wxUSE_METAFILE
- case wxDF_METAFILE:
+
+ if ( SUCCEEDED(hr) )
{
- wxMetafileDataObject* metaFileDataObject = (wxMetafileDataObject *)data;
- wxMetafile* metaFile = (wxMetafile *)wxGetClipboardData(wxDF_METAFILE);
- if (metaFile)
+ // pass the data to the data object
+ hr = data.GetInterface()->SetData(&formatEtc, &medium, true);
+ if ( FAILED(hr) )
{
- metaFileDataObject->SetMetafile(*metaFile);
- delete metaFile;
- return TRUE;
+ wxLogDebug(wxT("Failed to set data in wxIDataObject"));
+
+ // IDataObject only takes the ownership of data if it
+ // successfully got it - which is not the case here
+ ReleaseStgMedium(&medium);
}
else
- return FALSE;
- }
-#endif
- default:
{
- long len;
- void *buf = wxGetClipboardData(format, &len);
- if ( buf )
- {
- // FIXME this is for testing only!!
- ((wxPrivateDataObject *)data)->SetData(buf, len);
- free(buf);
-
- return TRUE;
- }
+ result = true;
}
+ }
+ //else: unsupported tymed?
+ }
- return FALSE;
+ if ( formats != &format )
+ {
+ delete [] formats;
}
-#else
- return FALSE;
-#endif
-}
+ //else: we didn't allocate any memory
-//-----------------------------------------------------------------------------
-// wxClipboardModule
-//-----------------------------------------------------------------------------
+ // clean up and return
+ pDataObject->Release();
-IMPLEMENT_DYNAMIC_CLASS(wxClipboardModule,wxModule)
+ return result;
+#elif wxUSE_DATAOBJ
+ wxCHECK_MSG( wxIsClipboardOpened(), false, wxT("clipboard not open") );
-bool wxClipboardModule::OnInit()
-{
- wxTheClipboard = new wxClipboard();
+ wxDataFormat format = data.GetPreferredFormat();
+ switch ( format )
+ {
+ case wxDF_TEXT:
+ case wxDF_OEMTEXT:
+ {
+ wxTextDataObject& textDataObject = (wxTextDataObject &)data;
+ char* s = (char*)wxGetClipboardData(format);
+ if ( !s )
+ return false;
- return TRUE;
-}
+ textDataObject.SetText(wxString::FromAscii(s));
+ delete [] s;
-void wxClipboardModule::OnExit()
-{
- if (wxTheClipboard) delete wxTheClipboard;
- wxTheClipboard = (wxClipboard*) NULL;
+ return true;
+ }
+
+ case wxDF_BITMAP:
+ case wxDF_DIB:
+ {
+ wxBitmapDataObject& bitmapDataObject = (wxBitmapDataObject &)data;
+ wxBitmap* bitmap = (wxBitmap *)wxGetClipboardData(data.GetPreferredFormat());
+ if ( !bitmap )
+ return false;
+
+ bitmapDataObject.SetBitmap(*bitmap);
+ delete bitmap;
+
+ return true;
+ }
+#if wxUSE_METAFILE
+ case wxDF_METAFILE:
+ {
+ wxMetafileDataObject& metaFileDataObject = (wxMetafileDataObject &)data;
+ wxMetafile* metaFile = (wxMetafile *)wxGetClipboardData(wxDF_METAFILE);
+ if ( !metaFile )
+ return false;
+
+ metaFileDataObject.SetMetafile(*metaFile);
+ delete metaFile;
+
+ return true;
+ }
+#endif // wxUSE_METAFILE
+ }
+ return false;
+#else // !wxUSE_DATAOBJ
+ wxFAIL_MSG( wxT("no clipboard implementation") );
+ return false;
+#endif // wxUSE_OLE_CLIPBOARD/wxUSE_DATAOBJ
}
-#else
- #error "Please turn wxUSE_CLIPBOARD on to compile this file."
#endif // wxUSE_CLIPBOARD
-
projects / wxWidgets.git / blobdiff