QVector<rpp::pp_macro*> computeGccStandardMacros(bool withStdCpp0x = true)
{
QVector<rpp::pp_macro*> ret;
//Get standard macros from gcc
KProcess proc;
proc.setOutputChannelMode(KProcess::MergedChannels);
// The output of the following gcc commands is several line in the format:
// "#define MACRO [definition]", where definition may or may not be present.
// Parsing each line sequentially, we can easily build the macro set.
proc << "gcc";
if (withStdCpp0x) {
// see also: https://bugs.kde.org/show_bug.cgi?id=298252
proc << "-std=c++0x";
}
proc << "-xc++" << "-E" << "-dM" <<NULL_DEVICE;
if (proc.execute(5000) == 0) {
QString line;
while (proc.canReadLine()) {
QByteArray buff = proc.readLine();
if (!buff.isEmpty()) {
line = buff;
if (line.startsWith("#define ")) {
line = line.right(line.length() - 8).trimmed();
int pos = line.indexOf(' ');
ret.append(new rpp::pp_macro);
rpp::pp_macro& macro(*ret.back());
if (pos != -1) {
macro.name = IndexedString( line.left(pos) );
macro.setDefinitionText( line.right(line.length() - pos - 1).toUtf8() );
} else {
macro.name = IndexedString( line );
}
}
}
}
} else if (withStdCpp0x) {
// fallback to macro computation without -std=c++0x arg for old gcc versions
return computeGccStandardMacros(false);
} else {
kDebug(9007) <<"Unable to read standard c++ macro definitions from gcc:" <<QString(proc.readAll()) ;
}
return ret;
}
QVector<rpp::pp_macro*> computeGccStandardMacros()
{
QVector<rpp::pp_macro*> ret;
//Get standard macros from gcc
KProcess proc;
proc.setOutputChannelMode(KProcess::MergedChannels);
proc.setTextModeEnabled(true);
// The output of the following gcc commands is several line in the format:
// "#define MACRO [definition]", where definition may or may not be present.
// Parsing each line sequentially, we can easily build the macro set.
proc <<"gcc" <<"-xc++" <<"-E" <<"-dM" <<"/dev/null";
if (proc.execute(5000) == 0) {
QString line;
while (proc.canReadLine()) {
QByteArray buff = proc.readLine();
if (!buff.isEmpty()) {
line = buff;
if (line.startsWith("#define ")) {
line = line.right(line.length() - 8).trimmed();
int pos = line.indexOf(' ');
ret.append(new rpp::pp_macro);
rpp::pp_macro& macro(*ret.back());
if (pos != -1) {
macro.name = IndexedString( line.left(pos) );
macro.setDefinitionText( line.right(line.length() - pos - 1).toUtf8() );
} else {
macro.name = IndexedString( line );
}
}
}
}
} else {
kDebug(9007) <<"Unable to read standard c++ macro definitions from gcc:" <<QString(proc.readAll()) ;
}
return ret;
}
void ghostscript_interface::gs_generate_graphics_file(const PageNumber& page, const QString& filename, long magnification) {
#ifdef DEBUG_PSGS
kDebug(kvs::dvi) << "ghostscript_interface::gs_generate_graphics_file( " << page << ", " << filename << " )";
#endif
if (knownDevices.isEmpty()) {
kError(kvs::dvi) << "No known devices found" << endl;
return;
}
pageInfo *info = pageList.value(page);
// Generate a PNG-file
// Step 1: Write the PostScriptString to a File
KTemporaryFile PSfile;
PSfile.setAutoRemove(false);
PSfile.setSuffix(".ps");
PSfile.open();
const QString PSfileName = PSfile.fileName();
QTextStream os(&PSfile);
os << "%!PS-Adobe-2.0\n"
<< "%%Creator: kdvi\n"
<< "%%Title: KDVI temporary PostScript\n"
<< "%%Pages: 1\n"
<< "%%PageOrder: Ascend\n"
// HSize and VSize in 1/72 inch
<< "%%BoundingBox: 0 0 "
<< (qint32)(72*(pixel_page_w/resolution)) << ' '
<< (qint32)(72*(pixel_page_h/resolution)) << '\n'
<< "%%EndComments\n"
<< "%!\n"
<< psheader
<< "TeXDict begin "
// HSize in (1/(65781.76*72))inch
<< (qint32)(72*65781*(pixel_page_w/resolution)) << ' '
// VSize in (1/(65781.76*72))inch
<< (qint32)(72*65781*(pixel_page_h/resolution)) << ' '
// Magnification
<< (qint32)(magnification)
// dpi and vdpi
<< " 300 300"
// Name
<< " (test.dvi)"
<< " @start end\n"
<< "TeXDict begin\n"
// Start page
<< "1 0 bop 0 0 a \n";
if (!PostScriptHeaderString->toLatin1().isNull())
os << PostScriptHeaderString->toLatin1();
if (info->background != Qt::white) {
QString colorCommand = QString("gsave %1 %2 %3 setrgbcolor clippath fill grestore\n").
arg(info->background.red()/255.0).
arg(info->background.green()/255.0).
arg(info->background.blue()/255.0);
os << colorCommand.toLatin1();
}
if (!info->PostScriptString->isNull())
os << *(info->PostScriptString);
os << "end\n"
<< "showpage \n";
PSfile.close();
// Step 2: Call GS with the File
QFile::remove(filename.toAscii());
KProcess proc;
proc.setOutputChannelMode(KProcess::SeparateChannels);
QStringList argus;
argus << "gs";
argus << "-dSAFER" << "-dPARANOIDSAFER" << "-dDELAYSAFER" << "-dNOPAUSE" << "-dBATCH";
argus << QString("-sDEVICE=%1").arg(*gsDevice);
argus << QString("-sOutputFile=%1").arg(filename);
argus << QString("-sExtraIncludePath=%1").arg(includePath);
argus << QString("-g%1x%2").arg(pixel_page_w).arg(pixel_page_h); // page size in pixels
argus << QString("-r%1").arg(resolution); // resolution in dpi
argus << "-dTextAlphaBits=4 -dGraphicsAlphaBits=2"; // Antialiasing
argus << "-c" << "<< /PermitFileReading [ ExtraIncludePath ] /PermitFileWriting [] /PermitFileControl [] >> setuserparams .locksafe";
argus << "-f" << PSfileName;
#ifdef DEBUG_PSGS
kDebug(kvs::dvi) << argus.join(" ");
#endif
proc << argus;
int res = proc.execute();
if ( res ) {
// Starting ghostscript did not work.
// TODO: Issue error message, switch PS support off.
kError(kvs::dvi) << "ghostview could not be started" << endl;
}
PSfile.remove();
// Check if gs has indeed produced a file.
if (QFile::exists(filename) == false) {
kError(kvs::dvi) << "GS did not produce output." << endl;
// No. Check is the reason is that the device is not compiled into
// ghostscript. If so, try again with another device.
QString GSoutput;
proc.setReadChannel(QProcess::StandardOutput);
while(proc.canReadLine()) {
GSoutput = QString::fromLocal8Bit(proc.readLine());
if (GSoutput.contains("Unknown device")) {
kDebug(kvs::dvi) << QString("The version of ghostview installed on this computer does not support "
"the '%1' ghostview device driver.").arg(*gsDevice) << endl;
knownDevices.erase(gsDevice);
gsDevice = knownDevices.begin();
if (knownDevices.isEmpty())
// TODO: show a requestor of some sort.
#if 0
KMessageBox::detailedError(0,
i18n("<qt>The version of Ghostview that is installed on this computer does not contain "
"any of the Ghostview device drivers that are known to Okular. PostScript "
"support has therefore been turned off in Okular.</qt>"),
i18n("<qt><p>The Ghostview program, which Okular uses internally to display the "
"PostScript graphics that is included in this DVI file, is generally able to "
"write its output in a variety of formats. The sub-programs that Ghostview uses "
"for these tasks are called 'device drivers'; there is one device driver for "
"each format that Ghostview is able to write. Different versions of Ghostview "
"often have different sets of device drivers available. It seems that the "
"version of Ghostview that is installed on this computer does not contain "
"<strong>any</strong> of the device drivers that are known to Okular.</p>"
"<p>It seems unlikely that a regular installation of Ghostview would not contain "
"these drivers. This error may therefore point to a serious misconfiguration of "
"the Ghostview installation on your computer.</p>"
"<p>If you want to fix the problems with Ghostview, you can use the command "
"<strong>gs --help</strong> to display the list of device drivers contained in "
"Ghostview. Among others, Okular can use the 'png256', 'jpeg' and 'pnm' "
"drivers. Note that Okular needs to be restarted to re-enable PostScript support."
"</p></qt>"));
#else
{}
#endif
else {
kDebug(kvs::dvi) << QString("Okular will now try to use the '%1' device driver.").arg(*gsDevice);
gs_generate_graphics_file(page, filename, magnification);
}
return;
}
QStringList gccSetupStandardIncludePaths(bool withStdCpp0x)
{
QStringList includePaths;
KProcess proc;
proc.setOutputChannelMode(KProcess::MergedChannels);
// The following command will spit out a bnuch of information we don't care
// about before spitting out the include paths. The parts we care about
// look like this:
// #include "..." search starts here:
// #include <...> search starts here:
// /usr/lib/gcc/i486-linux-gnu/4.1.2/../../../../include/c++/4.1.2
// /usr/lib/gcc/i486-linux-gnu/4.1.2/../../../../include/c++/4.1.2/i486-linux-gnu
// /usr/lib/gcc/i486-linux-gnu/4.1.2/../../../../include/c++/4.1.2/backward
// /usr/local/include
// /usr/lib/gcc/i486-linux-gnu/4.1.2/include
// /usr/include
// End of search list.
proc << "gcc";
if (withStdCpp0x) {
// see also: https://bugs.kde.org/show_bug.cgi?id=298252
proc << "-std=c++0x";
}
proc << "-xc++" << "-E" << "-v" << NULL_DEVICE;
// We'll use the following constants to know what we're currently parsing.
const short parsingInitial = 0;
const short parsedFirstSearch = 1;
const short parsingIncludes = 2;
const short parsingFinished = 3;
short parsingMode = parsingInitial;
if (proc.execute(5000) == 0) {
QString line;
while (proc.canReadLine() && parsingMode != parsingFinished) {
QByteArray buff = proc.readLine();
if (!buff.isEmpty()) {
line = buff;
switch (parsingMode) {
case parsingInitial:
if (line.indexOf("#include \"...\"") != -1) {
parsingMode = parsedFirstSearch;
}
break;
case parsedFirstSearch:
if (line.indexOf("#include <...>") != -1) {
parsingMode = parsingIncludes;
break;
}
case parsingIncludes:
//if (!line.indexOf(QDir::separator()) == -1 && line != "." ) {
//Detect the include-paths by the first space that is prepended. Reason: The list may contain relative paths like "."
if (!line.startsWith(" ") ) {
// We've reached the end of the list.
parsingMode = parsingFinished;
} else {
line = line.trimmed();
// This is an include path, add it to the list.
includePaths << QDir::cleanPath(line);
}
break;
}
}
}
} else if (withStdCpp0x) {
// fallback to include-path computation without -std=c++0x arg for old gcc versions
return gccSetupStandardIncludePaths(false);
} else {
kDebug(9007) <<"Unable to read standard c++ macro definitions from gcc:" <<QString(proc.readAll()) ;
}
return includePaths;
}
Defines MsvcCompiler::defines(const QString&) const
{
Defines ret;
//Get standard macros from kdevmsvcdefinehelpers
KProcess proc;
proc.setOutputChannelMode( KProcess::MergedChannels );
proc.setTextModeEnabled( true );
// we want to use kdevmsvcdefinehelper as a pseudo compiler backend which
// returns the defines used in msvc. there is no such thing as -dM with cl.exe
proc << path() << "/nologo" << "/Bxkdevmsvcdefinehelper" << "empty.cpp";
// this will fail, so check on that as well
if ( proc.execute( 5000 ) == 2 ) {
QString line;
proc.readLine(); // read the filename
while ( proc.canReadLine() ) {
QByteArray buff = proc.readLine();
definesAndIncludesDebug() << "msvcstandardmacros:" << buff;
if ( !buff.isEmpty() ) {
line = buff;
if ( line.startsWith( "#define " ) ) {
line = line.right( line.length() - 8 ).trimmed();
int pos = line.indexOf( ' ' );
if ( pos != -1 ) {
ret[line.left( pos )] = line.right( line.length() - pos - 1 ).toUtf8();
} else {
ret[line] = "";
}
}
}
}
} else {
definesAndIncludesDebug() << "Unable to read standard c++ macro definitions from " + path();
while ( proc.canReadLine() ){
definesAndIncludesDebug() << proc.readLine();
}
definesAndIncludesDebug() << proc.exitCode();
}
// MSVC builtin attributes
{
ret["__cdecl"] = "";
ret["__fastcall"] = "";
ret["__stdcall"] = "";
ret["__thiscall"] = "";
}
// MSVC builtin types
// see http://msdn.microsoft.com/en-us/library/cc953fe1.aspx
{
ret["__int8"] = "char";
ret["__int16"] = "short";
ret["__int32"] = "int";
ret["__int64"] = "long long";
ret["__int16"] = "short";
ret["__ptr32"] = "";
ret["__ptr64"] = "";
}
// MSVC specific modifiers
// see http://msdn.microsoft.com/en-us/library/vstudio/s04b5w00.aspx
{
ret["__sptr"] = "";
ret["__uptr"] = "";
ret["__unaligned"] = "";
ret["__w64"] = "";
}
// MSVC function specifiers
// see http://msdn.microsoft.com/de-de/library/z8y1yy88.aspx
{
ret["__inline"] = "";
ret["__forceinline"] = "";
}
return ret;
}
