// Get a temporary filename, opening and closing the file.
wxChar *wxGetTempFileName(const wxString& prefix, wxChar *buf)
{
wxString filename;
if ( !wxGetTempFileName(prefix, filename) )
return NULL;
if ( buf )
wxStrcpy(buf, filename);
else
buf = MYcopystring(filename);
return buf;
}
wxInputStream& DiagramDocument::LoadObject(wxInputStream& stream)
{
#if wxUSE_PROLOGIO
wxDocument::LoadObject(stream);
wxChar buf[400];
(void) wxGetTempFileName(_T("diag"), buf);
wxTransferStreamToFile(stream, buf);
diagram.DeleteAllShapes();
diagram.LoadFile(buf);
wxRemoveFile(buf);
#endif
return stream;
}
wxOutputStream& DiagramDocument::SaveObject(wxOutputStream& stream)
{
#if wxUSE_PROLOGIO
wxDocument::SaveObject(stream);
wxChar buf[400];
(void) wxGetTempFileName(_T("diag"), buf);
diagram.SaveFile(buf);
wxTransferFileToStream(buf, stream);
wxRemoveFile(buf);
#endif
return stream;
}
wxVideoXANIM::wxVideoXANIM(wxInputStream& str)
: wxVideoBaseDriver(str)
{
m_internal = new wxXANIMinternal;
m_xanim_detector = new wxVideoXANIMProcess(this);
m_xanim_started = false;
m_paused = false;
m_size[0] = 0;
m_size[1] = 0;
m_filename = wxGetTempFileName(_T("vidxa"));
m_remove_file = true;
wxFileOutputStream fout(m_filename);
fout << str;
CollectInfo();
}
bool wxMakeMetafilePlaceable(const wxString& filename, int x1, int y1, int x2, int y2, float scale, bool useOriginAndExtent)
{
// I'm not sure if this is the correct way of suggesting a scale
// to the client application, but it's the only way I can find.
int unitsPerInch = (int)(576/scale);
mfPLACEABLEHEADER header;
header.key = 0x9AC6CDD7L;
header.hmf = 0;
header.bbox.left = (int)(x1);
header.bbox.top = (int)(y1);
header.bbox.right = (int)(x2);
header.bbox.bottom = (int)(y2);
header.inch = unitsPerInch;
header.reserved = 0;
// Calculate checksum
WORD *p;
mfPLACEABLEHEADER *pMFHead = &header;
for (p =(WORD *)pMFHead,pMFHead -> checksum = 0;
p < (WORD *)&pMFHead ->checksum; ++p)
pMFHead ->checksum ^= *p;
FILE *fd = wxFopen(filename.fn_str(), _T("rb"));
if (!fd) return false;
wxChar tempFileBuf[256];
wxGetTempFileName(wxT("mf"), tempFileBuf);
FILE *fHandle = wxFopen(wxFNCONV(tempFileBuf), _T("wb"));
if (!fHandle)
return false;
fwrite((void *)&header, sizeof(unsigned char), sizeof(mfPLACEABLEHEADER), fHandle);
// Calculate origin and extent
int originX = x1;
int originY = y1;
int extentX = x2 - x1;
int extentY = (y2 - y1);
// Read metafile header and write
METAHEADER metaHeader;
fread((void *)&metaHeader, sizeof(unsigned char), sizeof(metaHeader), fd);
if (useOriginAndExtent)
metaHeader.mtSize += 15;
else
metaHeader.mtSize += 5;
fwrite((void *)&metaHeader, sizeof(unsigned char), sizeof(metaHeader), fHandle);
// Write SetMapMode, SetWindowOrigin and SetWindowExt records
char modeBuffer[8];
char originBuffer[10];
char extentBuffer[10];
METARECORD *modeRecord = (METARECORD *)&modeBuffer;
METARECORD *originRecord = (METARECORD *)&originBuffer;
METARECORD *extentRecord = (METARECORD *)&extentBuffer;
modeRecord->rdSize = 4;
modeRecord->rdFunction = META_SETMAPMODE;
modeRecord->rdParm[0] = MM_ANISOTROPIC;
originRecord->rdSize = 5;
originRecord->rdFunction = META_SETWINDOWORG;
originRecord->rdParm[0] = originY;
originRecord->rdParm[1] = originX;
extentRecord->rdSize = 5;
extentRecord->rdFunction = META_SETWINDOWEXT;
extentRecord->rdParm[0] = extentY;
extentRecord->rdParm[1] = extentX;
fwrite((void *)modeBuffer, sizeof(char), 8, fHandle);
if (useOriginAndExtent)
{
fwrite((void *)originBuffer, sizeof(char), 10, fHandle);
fwrite((void *)extentBuffer, sizeof(char), 10, fHandle);
}
int ch = -2;
while (ch != EOF)
{
ch = getc(fd);
if (ch != EOF)
{
putc(ch, fHandle);
}
}
fclose(fHandle);
fclose(fd);
wxRemoveFile(filename);
wxCopyFile(tempFileBuf, filename);
wxRemoveFile(tempFileBuf);
return true;
}
bool wxDiagram::SaveFile(const wxString& filename)
{
wxBeginBusyCursor();
wxExprDatabase *database = new wxExprDatabase;
// First write the diagram type
wxExpr *header = new wxExpr(_T("diagram"));
OnHeaderSave(*database, *header);
database->Append(header);
wxNode *node = m_shapeList->GetFirst();
while (node)
{
wxShape *shape = (wxShape *)node->GetData();
if (!shape->IsKindOf(CLASSINFO(wxControlPoint)))
{
wxExpr *expr;
if (shape->IsKindOf(CLASSINFO(wxLineShape)))
expr = new wxExpr(_T("line"));
else
expr = new wxExpr(_T("shape"));
OnShapeSave(*database, *shape, *expr);
}
node = node->GetNext();
}
OnDatabaseSave(*database);
wxString tempFile;
wxGetTempFileName(wxT("diag"), tempFile);
FILE* file = fopen(tempFile.mb_str(wxConvFile), "w");
if (! file)
{
wxEndBusyCursor();
delete database;
return false;
}
database->Write(file);
fclose(file);
delete database;
/*
// Save backup
if (FileExists(filename))
{
char buf[400];
#ifdef __X__
sprintf(buf, "%s.bak", filename);
#endif
#ifdef __WXMSW__
sprintf(buf, "_diagram.bak");
#endif
if (FileExists(buf)) wxRemoveFile(buf);
if (!wxRenameFile(filename, buf))
{
wxCopyFile(filename, buf);
wxRemoveFile(filename);
}
}
*/
// Copy the temporary file to the correct filename
if (!wxRenameFile(tempFile, filename))
{
wxCopyFile(tempFile, filename);
wxRemoveFile(tempFile);
}
wxEndBusyCursor();
return true;
}
