ipe::Platform Class Reference

#include <ipebase.h>

Public Types
using	DebugHandler = void(*)(const char *)

Static Public Member Functions
static String	folder (IpeFolder ft, const char *fname=nullptr)
static FILE *	fopen (const char *fname, const char *mode)
static String	ipeDrive ()
static int	libVersion ()
static void	initLib (int version)
static void	setDebug (bool debug)
static String	latexPath ()
static bool	fileExists (String fname)
static String	readFile (String fname)
static String	howToRunLatex (LatexType engine, String docname) noexcept
static int	system (String cmd)
static String	createTarball (String tex)
static double	toDouble (String s)
static int	toNumber (String s, int &iValue, double &dValue)
static String	spiroVersion ()
static String	gslVersion ()
static std::pair< int, std::vector< const char * > >	setupNodeJs ()
static String	imageFolder (String fname)

Detailed Description

Platform dependent methods.

Member Typedef Documentation

DebugHandler

using ipe::Platform::DebugHandler = void (*)(const char *)

Member Function Documentation

folder()

String Platform::folder ( IpeFolder  ft, const char *  fname = nullptr  )

static

References ipe::String::s8().

Referenced by ipe::Document::completeLatexRun(), and ipe::Document::prepareLatexRun().

fopen()

FILE * Platform::fopen ( const char *  fname, const char *  mode  )

static

Referenced by ipe::Document::completeLatexRun(), ipe::Reveal::createJson(), ipe::Reveal::createPresentation(), ipe::Document::exportPages(), ipe::Document::exportView(), ipe::Bitmap::formatFromFile(), howToRunLatex(), ipe::Document::load(), ipe::Document::prepareLatexRun(), readFile(), ipe::Bitmap::readJpeg(), ipe::Bitmap::readPNG(), ipe::Bitmap::save(), ipe::Document::save(), ipe::Bitmap::savePixels(), and ipe::Thumbnail::saveRender().

ipeDrive()

String Platform::ipeDrive ( )

static

Returns drive on which Ipe executable exists.

On Linux and OSX, returns empty string.

Referenced by latexPath().

libVersion()

int Platform::libVersion ( )

static

Return the Ipelib version.

This is available as a function so that one can verify what version of Ipelib one has actually linked with (as opposed to the header files used during compilation).

References ipe::IPELIB_VERSION.

initLib()

void Platform::initLib ( int  version )

static

Initialize Ipelib.

This method must be called before Ipelib is used.

It creates a LC_NUMERIC locale set to 'C', which is necessary for correct loading and saving of Ipe objects. The method also checks that the correct version of Ipelib is loaded, and aborts with an error message if the version is not correct. Also enables ipeDebug messages if environment variable IPEDEBUG is defined. (You can override this using setDebug).

References ipe::IPELIB_VERSION.

setDebug()

void Platform::setDebug ( bool  debug )

static

Enable or disable display of ipeDebug messages.

latexPath()

String Platform::latexPath ( )

static

Return path for the directory containing pdflatex and xelatex.

If empty means look on PATH.

References ipeDrive().

fileExists()

bool Platform::fileExists ( String  fname )

static

Determine whether file exists.

References ipe::String::hasPrefix(), ipe::String::s8(), and ipe::String::z().

readFile()

String Platform::readFile ( String  fname )

static

Read entire file into string.

Returns an empty string if file cannot be found or read. There is no way to distinguish an empty file from this.

References ipe::String::append(), fopen(), and ipe::String::z().

Referenced by ipe::Document::completeLatexRun(), howToRunLatex(), and ipe::Bitmap::readJpeg().

howToRunLatex()

String Platform::howToRunLatex ( LatexType  engine, String  docname  )

staticnoexcept

Returns command to run latex on file ipetemp.tex in given directory.

directory of docname is added to TEXINPUTS if its non-empty.

References ipe::String::data(), ipe::String::empty(), ipe::FolderConfig, ipe::FolderLatex, ipe::FolderLua, fopen(), ipe::String::left(), ipe::Luatex, readFile(), ipe::String::s8(), ipe::String::size(), ipe::size(), ipe::String::substr(), ipe::Xetex, and ipe::String::z().

Referenced by ipe::Document::runLatex().

system()

int Platform::system ( String  cmd )

static

References ipe::String::z().

Referenced by ipe::Document::runLatex().

createTarball()

String Platform::createTarball ( String  tex )

static

References ipe::Buffer::data(), ipe::StringStream::putChar(), and ipe::String::size().

toDouble()

double Platform::toDouble ( String  s )

static

References ipe::String::z().

Referenced by ipe::Lex::getDouble(), and ipe::PdfParser::getObject().

toNumber()

int Platform::toNumber ( String  s, int &  iValue, double &  dValue  )

static

References ipe::String::z().

spiroVersion()

String Platform::spiroVersion ( )

static

gslVersion()

String Platform::gslVersion ( )

static

setupNodeJs()

static std::pair< int, std::vector< const char * > > ipe::Platform::setupNodeJs ( )

static

imageFolder()

String Platform::imageFolder ( String  fname )

static

References ipe::String::s8().

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The documentation for this class was generated from the following files:

• ipebase.h
• ipeplatform.cpp