// 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__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
#pragma implementation "clipbrd.h"
#endif
#include "wx/clipbrd.h"
#include <string.h>
-#include <windows.h>
#include "wx/msw/private.h"
+
+#if wxUSE_WXDIB
#include "wx/msw/dib.h"
+#endif
// 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
+//#define wxUSE_DATAOBJ wxUSE_DRAG_AND_DROP
#if wxUSE_DATAOBJ
#include "wx/dataobj.h"
+#endif
+#if wxUSE_OLE && !defined(__WXWINCE__)
// use OLE clipboard
#define wxUSE_OLE_CLIPBOARD 1
#else // !wxUSE_DATAOBJ
#include <ole2.h>
#endif // wxUSE_OLE_CLIPBOARD
-#ifdef __WIN16__
- #define memcpy hmemcpy
-#endif
-
// ===========================================================================
// implementation
// ===========================================================================
// old-style clipboard functions using Windows API
// ---------------------------------------------------------------------------
-static bool gs_wxClipboardIsOpen = FALSE;
+static bool gs_wxClipboardIsOpen = false;
bool wxOpenClipboard()
{
- wxCHECK_MSG( !gs_wxClipboardIsOpen, TRUE, wxT("clipboard already opened.") );
+ wxCHECK_MSG( !gs_wxClipboardIsOpen, true, wxT("clipboard already opened.") );
wxWindow *win = wxTheApp->GetTopWindow();
if ( win )
{
wxLogDebug(wxT("Can not open clipboard without a main window."));
- return FALSE;
+ return false;
}
}
bool wxCloseClipboard()
{
- wxCHECK_MSG( gs_wxClipboardIsOpen, FALSE, wxT("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)
{
- // for bitmaps, DIBs will also do
- return (::IsClipboardFormatAvailable(dataFormat) != 0) ||
- (dataFormat.GetFormatId() == CF_BITMAP &&
- ::IsClipboardFormatAvailable(CF_DIB));
+ wxDataFormat::NativeFormat cf = dataFormat.GetFormatId();
+
+ if ( ::IsClipboardFormatAvailable(cf) )
+ {
+ // ok from the first try
+ return true;
+ }
+
+ // for several standard formats, we can convert from some other ones too
+ switch ( cf )
+ {
+ // for bitmaps, DIBs will also do
+ case CF_BITMAP:
+ return ::IsClipboardFormatAvailable(CF_DIB) != 0;
+
+#if wxUSE_ENH_METAFILE && !defined(__WXWINCE__)
+ case CF_METAFILEPICT:
+ return ::IsClipboardFormatAvailable(CF_ENHMETAFILE) != 0;
+#endif // wxUSE_ENH_METAFILE
+
+ default:
+ return false;
+ }
}
+
bool wxSetClipboardData(wxDataFormat dataFormat,
const void *data,
int width, int height)
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 = wxBitmapToDIB(hBitmap, (HPALETTE)NULL);
- handle = SetClipboardData(CF_DIB, hDIB);
-#endif // wxUSE_IMAGE_LOADING_IN_MSW
+
+ if ( bitmap && bitmap->Ok() )
+ {
+ 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 non-Unicode, Visual C++ 6.0 so far
+#if defined(__VISUALC__) && !defined(UNICODE)
+ case wxDF_HTML:
+ {
+ char* html = (char *)data;
+
+ // Create temporary buffer for HTML header...
+ char *buf = new char [400 + strlen(html)];
+ if(!buf) return false;
+
+ // Get clipboard id for HTML format...
+ static int cfid = 0;
+ if(!cfid) cfid = RegisterClipboardFormat(wxT("HTML Format"));
+
+ // 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");
+ wsprintf(ptr+10, "%08u", strstr(buf, "<html>") - buf);
+ *(ptr+10+8) = '\r';
+
+ ptr = strstr(buf, "EndHTML");
+ wsprintf(ptr+8, "%08u", strlen(buf));
+ *(ptr+8+8) = '\r';
+
+ ptr = strstr(buf, "StartFragment");
+ wsprintf(ptr+14, "%08u", strstr(buf, "<!--StartFrag") - buf);
+ *(ptr+14+8) = '\r';
+
+ ptr = strstr(buf, "EndFragment");
+ wsprintf(ptr+12, "%08u", 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(cfid, 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(wxChar *formatName)
IMPLEMENT_DYNAMIC_CLASS(wxClipboard, wxObject)
-wxClipboard* wxTheClipboard = (wxClipboard *)NULL;
-
wxClipboard::wxClipboard()
{
- m_clearOnExit = FALSE;
+ m_clearOnExit = false;
+ m_isOpened = false;
}
wxClipboard::~wxClipboard()
#if wxUSE_OLE_CLIPBOARD
if ( FAILED(OleSetClipboard(NULL)) )
{
- wxLogLastError("OleSetClipboard(NULL)");
+ wxLogLastError(wxT("OleSetClipboard(NULL)"));
}
#endif
}
#if wxUSE_OLE_CLIPBOARD
if ( FAILED(OleFlushClipboard()) )
{
- wxLogLastError("OleFlushClipboard");
+ wxLogLastError(wxT("OleFlushClipboard"));
- return FALSE;
+ return false;
}
else
{
- m_clearOnExit = FALSE;
+ m_clearOnExit = false;
- return TRUE;
+ return true;
}
#else // !wxUSE_OLE_CLIPBOARD
- return FALSE;
+ return false;
#endif // wxUSE_OLE_CLIPBOARD/!wxUSE_OLE_CLIPBOARD
}
bool wxClipboard::Open()
{
// OLE opens clipboard for us
+ m_isOpened = true;
#if wxUSE_OLE_CLIPBOARD
- return TRUE;
+ return true;
#else
return wxOpenClipboard();
#endif
bool wxClipboard::IsOpened() const
{
#if wxUSE_OLE_CLIPBOARD
- return TRUE;
+ return m_isOpened;
#else
return wxIsClipboardOpened();
#endif
bool wxClipboard::SetData( wxDataObject *data )
{
+#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, wxT("data is invalid") );
+ wxCHECK_MSG( data, false, wxT("data is invalid") );
#if wxUSE_OLE_CLIPBOARD
HRESULT hr = OleSetClipboard(data->GetInterface());
// don't free anything in this case
- return FALSE;
+ return false;
}
// we have a problem here because we should delete wxDataObject, but we
// 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 chaneg this
- m_clearOnExit = TRUE;
+ m_clearOnExit = true;
- return TRUE;
+ return true;
#elif wxUSE_DATAOBJ
- wxCHECK_MSG( wxIsClipboardOpened(), FALSE, wxT("clipboard not open") );
+ 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_DATAOBJ
- return FALSE;
+ 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);
}
{
wxLogSysError(hr, _("Failed to get data from the clipboard"));
- return FALSE;
+ return false;
}
// build the list of supported formats
size_t nFormats = data.GetFormatCount(wxDataObject::Set);
- wxDataFormat format, *formats;
+ wxDataFormat format;
+ wxDataFormat *formats;
if ( nFormats == 1 )
{
// the most common case
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.
+#ifdef __WXDEBUG__
// get the format enumerator
- bool result = FALSE;
- wxArrayInt supportedFormats;
IEnumFORMATETC *pEnumFormatEtc = NULL;
hr = pDataObject->EnumFormatEtc(DATADIR_GET, &pEnumFormatEtc);
if ( FAILED(hr) || !pEnumFormatEtc )
else
{
// ask for the supported formats and see if there are any we support
- FORMATETC formatEtc;
for ( ;; )
{
ULONG nCount;
break;
}
- CLIPFORMAT cf = formatEtc.cfFormat;
+ cf = formatEtc.cfFormat;
-#ifdef __WXDEBUG__
wxLogTrace(wxTRACE_OleCalls,
wxT("Object on the clipboard supports format %s."),
wxDataObject::GetFormatName(cf));
-#endif // Debug
-
- // is supported?
- for ( size_t n = 0; n < nFormats; n++ )
- {
- if ( formats[n].GetFormatId() == cf )
- {
- if ( supportedFormats.Index(cf) == wxNOT_FOUND )
- {
- supportedFormats.Add(cf);
- }
- }
- }
}
pEnumFormatEtc->Release();
}
+#endif // Debug
- if ( formats != &format )
+ STGMEDIUM medium;
+ // stop at the first valid format found on the clipboard
+ for ( size_t n = 0; !result && (n < nFormats); n++ )
{
- delete [] formats;
- }
- //else: we didn't allocate any memory
+ // convert to NativeFormat Id
+ cf = formats[n].GetFormatId();
- if ( !supportedFormats.IsEmpty() )
- {
- FORMATETC formatEtc;
+ // 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;
- formatEtc.tymed = TYMED_HGLOBAL;
- size_t nSupportedFormats = supportedFormats.GetCount();
- for ( size_t n = 0; !result && (n < nSupportedFormats); n++ )
+ // use the appropriate tymed
+ switch ( formatEtc.cfFormat )
{
- STGMEDIUM medium;
- formatEtc.cfFormat = supportedFormats[n];
+ case CF_BITMAP:
+ formatEtc.tymed = TYMED_GDI;
+ break;
- // try to get data
- hr = pDataObject->GetData(&formatEtc, &medium);
- if ( FAILED(hr) )
+#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 )
{
- // try other tymed for GDI objects
- if ( formatEtc.cfFormat == CF_BITMAP )
- {
- formatEtc.tymed = TYMED_HGLOBAL;
- hr = pDataObject->GetData(&formatEtc, &medium);
- }
+ formatEtc.tymed = TYMED_HGLOBAL;
+ hr = pDataObject->GetData(&formatEtc, &medium);
}
+ }
- if ( SUCCEEDED(hr) )
+ if ( SUCCEEDED(hr) )
+ {
+ // pass the data to the data object
+ hr = data.GetInterface()->SetData(&formatEtc, &medium, true);
+ if ( FAILED(hr) )
{
- // pass the data to the data object
- hr = data.GetInterface()->SetData(&formatEtc, &medium, TRUE);
- if ( FAILED(hr) )
- {
- wxLogDebug(wxT("Failed to set data in wxIDataObject"));
+ 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
- {
- result = TRUE;
- }
+ // IDataObject only takes the ownership of data if it
+ // successfully got it - which is not the case here
+ ReleaseStgMedium(&medium);
+ }
+ else
+ {
+ result = true;
}
- //else: unsupported tymed?
}
+ //else: unsupported tymed?
}
- //else: unsupported format
+
+ if ( formats != &format )
+ {
+ delete [] formats;
+ }
+ //else: we didn't allocate any memory
// clean up and return
pDataObject->Release();
return result;
#elif wxUSE_DATAOBJ
- wxCHECK_MSG( wxIsClipboardOpened(), FALSE, wxT("clipboard not open") );
+ wxCHECK_MSG( wxIsClipboardOpened(), false, wxT("clipboard not open") );
- wxDataFormat format = data.GetFormat();
+ wxDataFormat format = data.GetPreferredFormat();
switch ( format )
{
case wxDF_TEXT:
wxTextDataObject& textDataObject = (wxTextDataObject &)data;
char* s = (char*)wxGetClipboardData(format);
if ( !s )
- return FALSE;
+ return false;
- textDataObject.SetText(s);
+ textDataObject.SetText(wxString::FromAscii(s));
delete [] s;
- return TRUE;
+ return true;
}
case wxDF_BITMAP:
case wxDF_DIB:
{
wxBitmapDataObject& bitmapDataObject = (wxBitmapDataObject &)data;
- wxBitmap* bitmap = (wxBitmap *)wxGetClipboardData(data->GetFormat());
+ wxBitmap* bitmap = (wxBitmap *)wxGetClipboardData(data.GetPreferredFormat());
if ( !bitmap )
- return FALSE;
+ return false;
bitmapDataObject.SetBitmap(*bitmap);
delete bitmap;
- return TRUE;
+ return true;
}
#if wxUSE_METAFILE
case wxDF_METAFILE:
wxMetafileDataObject& metaFileDataObject = (wxMetafileDataObject &)data;
wxMetafile* metaFile = (wxMetafile *)wxGetClipboardData(wxDF_METAFILE);
if ( !metaFile )
- return FALSE;
+ return false;
metaFileDataObject.SetMetafile(*metaFile);
delete metaFile;
- return TRUE;
+ return true;
}
#endif // wxUSE_METAFILE
}
+ return false;
#else // !wxUSE_DATAOBJ
wxFAIL_MSG( wxT("no clipboard implementation") );
+ return false;
#endif // wxUSE_OLE_CLIPBOARD/wxUSE_DATAOBJ
-
- return FALSE;
}
-#else
- #error "Please turn wxUSE_CLIPBOARD on to compile this file."
#endif // wxUSE_CLIPBOARD
projects / wxWidgets.git / blobdiff