KDE_EXPORT void kimgio_eps_read(QImageIO *image)
{
kdDebug(399) << "kimgio EPS: starting..." << endl;
FILE *ghostfd;
int x1, y1, x2, y2;
// QTime dt;
// dt.start();
QString cmdBuf;
QString tmp;
QIODevice *io = image->ioDevice();
Q_UINT32 ps_offset, ps_size;
// find start of PostScript code
if(!seekToCodeStart(io, ps_offset, ps_size))
return;
// find bounding box
if(!bbox(io, &x1, &y1, &x2, &y2))
{
kdError(399) << "kimgio EPS: no bounding box found!" << endl;
return;
}
KTempFile tmpFile;
tmpFile.setAutoDelete(true);
if(tmpFile.status() != 0)
{
kdError(399) << "kimgio EPS: no temp file!" << endl;
return;
}
tmpFile.close(); // Close the file, we just want the filename
// x1, y1 -> translation
// x2, y2 -> new size
x2 -= x1;
y2 -= y1;
// kdDebug(399) << "origin point: " << x1 << "," << y1 << " size:" << x2 << "," << y2 << endl;
double xScale = 1.0;
double yScale = 1.0;
bool needsScaling = false;
int wantedWidth = x2;
int wantedHeight = y2;
if(image->parameters())
{
// Size forced by the caller
QStringList params = QStringList::split(':', image->parameters());
if(params.count() >= 2 && x2 != 0.0 && y2 != 0.0)
{
wantedWidth = params[0].toInt();
xScale = (double)wantedWidth / (double)x2;
wantedHeight = params[1].toInt();
yScale = (double)wantedHeight / (double)y2;
// kdDebug(399) << "wanted size:" << wantedWidth << "x" << wantedHeight << endl;
// kdDebug(399) << "scaling:" << xScale << "," << yScale << endl;
needsScaling = true;
}
}
// create GS command line
cmdBuf = "gs -sOutputFile=";
cmdBuf += tmpFile.name();
cmdBuf += " -q -g";
tmp.setNum(wantedWidth);
cmdBuf += tmp;
tmp.setNum(wantedHeight);
cmdBuf += "x";
cmdBuf += tmp;
cmdBuf +=
" -dSAFER -dPARANOIDSAFER -dNOPAUSE -sDEVICE=ppm -c "
"0 0 moveto "
"1000 0 lineto "
"1000 1000 lineto "
"0 1000 lineto "
"1 1 254 255 div setrgbcolor fill "
"0 0 0 setrgbcolor - -c showpage quit";
// run ghostview
ghostfd = popen(QFile::encodeName(cmdBuf), "w");
if(ghostfd == 0)
{
kdError(399) << "kimgio EPS: no GhostScript?" << endl;
return;
}
fprintf(ghostfd, "\n%d %d translate\n", -qRound(x1 * xScale), -qRound(y1 * yScale));
if(needsScaling)
fprintf(ghostfd, "%g %g scale\n", xScale, yScale);
// write image to gs
io->reset(); // Go back to start of file to give all the file to GhostScript
if(ps_offset > 0L) // We have an offset
io->at(ps_offset);
QByteArray buffer(io->readAll());
// If we have no MS-DOS EPS file or if the size seems wrong, then choose the buffer size
if(ps_size <= 0L || ps_size > buffer.size())
ps_size = buffer.size();
fwrite(buffer.data(), sizeof(char), ps_size, ghostfd);
buffer.resize(0);
pclose(ghostfd);
// load image
QImage myimage;
if(myimage.load(tmpFile.name()))
{
image->setImage(myimage);
image->setStatus(0);
kdDebug(399) << "kimgio EPS: success!" << endl;
}
else
kdError(399) << "kimgio EPS: no image!" << endl;
// kdDebug(399) << "Loading EPS took " << (float)(dt.elapsed()) / 1000 << " seconds" << endl;
return;
}
bool EPSHandler::read(QImage *image)
{
kDebug(399) << "kimgio EPS: starting...";
FILE * ghostfd;
int x1, y1, x2, y2;
//QTime dt;
//dt.start();
QString cmdBuf;
QString tmp;
QIODevice* io = device();
quint32 ps_offset, ps_size;
// find start of PostScript code
if ( !seekToCodeStart(io, ps_offset, ps_size) )
return false;
// find bounding box
if ( !bbox (io, &x1, &y1, &x2, &y2)) {
kError(399) << "kimgio EPS: no bounding box found!" << endl;
return false;
}
QTemporaryFile tmpFile;
if( !tmpFile.open() ) {
kError(399) << "kimgio EPS: no temp file!" << endl;
return false;
}
// x1, y1 -> translation
// x2, y2 -> new size
x2 -= x1;
y2 -= y1;
//kDebug(399) << "origin point: " << x1 << "," << y1 << " size:" << x2 << "," << y2;
double xScale = 1.0;
double yScale = 1.0;
int wantedWidth = x2;
int wantedHeight = y2;
// create GS command line
cmdBuf = "gs -sOutputFile=";
cmdBuf += tmpFile.fileName();
cmdBuf += " -q -g";
tmp.setNum( wantedWidth );
cmdBuf += tmp;
tmp.setNum( wantedHeight );
cmdBuf += 'x';
cmdBuf += tmp;
cmdBuf += " -dSAFER -dPARANOIDSAFER -dNOPAUSE -sDEVICE=ppm -c "
"0 0 moveto "
"1000 0 lineto "
"1000 1000 lineto "
"0 1000 lineto "
"1 1 254 255 div setrgbcolor fill "
"0 0 0 setrgbcolor - -c showpage quit";
// run ghostview
ghostfd = popen (QFile::encodeName(cmdBuf), "w");
if ( ghostfd == 0 ) {
kError(399) << "kimgio EPS: no GhostScript?" << endl;
return false;
}
fprintf (ghostfd, "\n%d %d translate\n", -qRound(x1*xScale), -qRound(y1*yScale));
// write image to gs
io->reset(); // Go back to start of file to give all the file to GhostScript
if (ps_offset>0L) // We have an offset
io->seek(ps_offset);
QByteArray buffer ( io->readAll() );
// If we have no MS-DOS EPS file or if the size seems wrong, then choose the buffer size
if (ps_size<=0 || ps_size>(unsigned int)buffer.size())
ps_size=buffer.size();
fwrite(buffer.data(), sizeof(char), ps_size, ghostfd);
buffer.resize(0);
pclose ( ghostfd );
// load image
if( image->load (tmpFile.fileName()) ) {
kDebug(399) << "kimgio EPS: success!";
//kDebug(399) << "Loading EPS took " << (float)(dt.elapsed()) / 1000 << " seconds";
return true;
}
kError(399) << "kimgio EPS: no image!" << endl;
return false;
}
