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// Copyright (C) 2000-2007, Luca Padovani <padovani@sti.uniurb.it>.
//
// This file is part of GtkMathView, a flexible, high-quality rendering
// engine for MathML documents.
//
// GtkMathView is free software; you can redistribute it and/or modify it
// under the terms of the GNU Lesser General Public License as published
// by the Free Software Foundation; either version 3 of the License, or
// (at your option) any later version.
//
// GtkMathView is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
#include <config.h>
#include <unistd.h>
#include <cassert>
#include <cstring>
#include <fstream>
#include <popt.h>
// needed for old versions of GCC, must come before String.hh!
#include "CharTraits.icc"
#include "Logger.hh"
#include "Init.hh"
#include "Configuration.hh"
#include "libxml2_MathView.hh"
#include "MathMLOperatorDictionary.hh"
#include "SVG_Backend.hh"
#include "SVG_MathGraphicDevice.hh"
#include "SVG_libxml2_StreamRenderingContext.hh"
#include "MathMLNamespaceContext.hh"
#include "FormattingContext.hh"
#if GMV_ENABLE_BOXML
#include "BoxMLNamespaceContext.hh"
#include "BoxGraphicDevice.hh"
#endif // GMV_ENABLE_BOXML
#include "SMS.hh"
#include "Fragment.hh"
typedef libxml2_MathView MathView;
static double width = 21;
static double height = 29.7;
static Length::Unit unitId = Length::CM_UNIT;
static double xMargin = 2;
static double yMargin = 2;
static double fontSize = DEFAULT_FONT_SIZE;
static bool cropping = true;
static bool cutFileName = true;
static char* configPath = 0;
static int logLevel = LOG_ERROR;
static bool logLevelSet = false;
enum CommandLineOptionId {
OPTION_VERSION = 256,
OPTION_VERBOSE,
OPTION_PAGE_SIZE,
OPTION_UNIT,
OPTION_MARGINS,
OPTION_FONT_SIZE,
OPTION_CROP,
OPTION_CUT_FILENAME,
OPTION_CONFIG
};
static void
printVersion()
{
std::cout << "MathML to SVG converter - written by Luca Padovani (C) 2005" << std::endl
<< "Based on GtkMathView " << VERSION << std::endl;
#ifdef DEBUG
std::cout << "Compiled " << __DATE__ << " " << __TIME__ << std::endl;
#endif
exit(0);
}
static struct poptOption optionsTable[] = {
{ "version", 'V', POPT_ARG_NONE, 0, OPTION_VERSION, "Output version information", 0 },
{ "verbose", 'v', POPT_ARG_INT, &logLevel, OPTION_VERBOSE, "Display messages", "[0-3]" },
{ "unit", 'u', POPT_ARG_STRING, 0, OPTION_UNIT, "Unit for dimensions (default='cm')", "<unit>" },
{ "page-size", 'p', POPT_ARG_STRING, 0, OPTION_PAGE_SIZE, "Page size (width x height) (default = 21 x 29.7)", "<float>x<float>" },
{ "margins", 'm', POPT_ARG_STRING, 0, OPTION_MARGINS, "Margins (top x left) (default = 2 x 2)", "<float>x<float>" },
{ "font-size", 'f', POPT_ARG_DOUBLE, &fontSize, OPTION_FONT_SIZE, "Default font size (in pt, default=10)", "<float>" },
{ "config", 0, POPT_ARG_STRING, 0, OPTION_CONFIG, "Configuration file path", "<path>" },
{ "crop", 'r', POPT_ARG_STRING | POPT_ARGFLAG_OPTIONAL, 0, OPTION_CROP, "Enable/disable cropping to bounding box (default='yes')", "[yes,no]" },
{ "cut-filename", 0, POPT_ARG_STRING | POPT_ARGFLAG_OPTIONAL, 0, OPTION_CUT_FILENAME, "Cut the prefix dir from the output file (default='yes')", "[yes,no]" },
POPT_AUTOHELP
{ 0, 0, 0, 0, 0, 0, 0 }
};
static void
usage(poptContext optCon, int exitcode, const char* msg, const char* arg)
{
poptPrintUsage(optCon, stderr, 0);
fprintf(stderr, "\
Valid units are:\n\n\
cm centimeter\n\
mm millimeter\n\
in inch (1 in = 2.54 cm)\n\
pt point (1 in = 72.27 pt)\n\
pc pica (1 pc = 12 pt)\n\
px pixel (1 in = 72 px)\n\
");
if (msg && arg) fprintf(stderr, "%s %s\n", msg, arg);
exit(exitcode);
}
static void
parseError(poptContext optCon, const char* option)
{
assert(option != NULL);
usage(optCon, 1, "error while parsing option", option);
}
static bool
parseSize(const char* s)
{
assert(s != NULL);
char* nptr;
double w = strtod(s, &nptr);
if (nptr == s) return false;
if (nptr == NULL || *nptr != 'x') return false;
s = nptr + 1;
double h = strtod(s, &nptr);
if (nptr == s) return false;
width = w;
height = h;
return true;
}
static bool
parseBoolean(const char* s, bool& res)
{
assert(s != NULL);
if (!strcmp(s, "yes")) {
res = true;
return true;
} else if (!strcmp(s, "no")) {
res = false;
return true;
}
return false;
}
static bool
parseUnit(const char* s)
{
assert(s != NULL);
struct {
const char* name;
Length::Unit id;
} unit[] = {
{ "mm", Length::MM_UNIT },
{ "cm", Length::CM_UNIT },
{ "in", Length::IN_UNIT },
{ "pt", Length::PT_UNIT },
{ "pc", Length::PC_UNIT },
{ "px", Length::PX_UNIT },
{ NULL, Length::UNDEFINED_UNIT }
};
unsigned i;
for (i = 0; unit[i].name != NULL && strcmp(unit[i].name, s); i++) ;
if (unit[i].name == NULL) return false;
unitId = unit[i].id;
return true;
}
static bool
parseMargins(const char* s)
{
assert(s != NULL);
char* nptr;
double x = strtod(s, &nptr);
if (nptr == s) return false;
if (nptr == NULL || *nptr != 'x') return false;
s = nptr + 1;
double y = strtod(s, &nptr);
if (nptr == s) return false;
xMargin = x;
yMargin = y;
return true;
}
static char*
getOutputFileName(const char* in)
{
char* out;
assert(in != NULL);
const char* dot = strrchr(in, '.');
const char* slash = strrchr(in, '/');
if (cutFileName && slash != NULL) in = slash + 1;
if (dot == NULL) {
out = new char[strlen(in) + 5];
strcpy(out, in);
} else {
out = new char[strlen(in) - strlen(dot) + 5];
strncpy(out, in, strlen(in) - strlen(dot));
out[strlen(in) - strlen(dot)] = '\0';
}
strcat(out, ".svg");
return out;
}
int
main(int argc, const char* argv[])
{
poptContext ctxt = poptGetContext(NULL, argc, argv, optionsTable, 0);
int c;
while ((c = poptGetNextOpt(ctxt)) >= 0)
{
const char* arg = poptGetOptArg(ctxt);
switch (c)
{
case OPTION_VERSION:
printVersion();
break;
case OPTION_VERBOSE:
if (logLevel < 0 || logLevel > 3) parseError(ctxt, "verbose");
logLevelSet = true;
break;
case OPTION_PAGE_SIZE:
assert(arg != 0);
if (!parseSize(arg)) parseError(ctxt, "size");
break;
case OPTION_UNIT:
assert(arg != 0);
if (!parseUnit(arg)) parseError(ctxt, "unit");
break;
case OPTION_MARGINS:
assert(arg != 0);
if (!parseMargins(arg)) parseError(ctxt, "margins");
break;
case OPTION_FONT_SIZE:
break;
case OPTION_CROP:
if (arg == 0) cropping = true;
else if (!parseBoolean(arg, cropping)) parseError(ctxt, "crop");
break;
case OPTION_CUT_FILENAME:
if (arg == 0) cutFileName = true;
else if (!parseBoolean(arg, cutFileName)) parseError(ctxt, "cut-filename");
break;
case OPTION_CONFIG:
assert(arg != 0);
configPath = strdup(arg);
break;
default:
assert(false);
}
}
if (c < -1)
{
/* an error occurred during option processing */
fprintf(stderr, "%s: %s\n",
poptBadOption(ctxt, POPT_BADOPTION_NOALIAS),
poptStrerror(c));
return 1;
}
if (configPath == 0) configPath = getenv("GTKMATHVIEWCONF");
SmartPtr<AbstractLogger> logger = Logger::create();
logger->setLogLevel(LogLevelId(logLevel));
SmartPtr<Configuration> configuration = initConfiguration<MathView>(logger, configPath);
if (logLevelSet) logger->setLogLevel(LogLevelId(logLevel));
SmartPtr<Backend> backend = SVG_Backend::create(logger, configuration);
SmartPtr<MathGraphicDevice> mgd = backend->getMathGraphicDevice();
SmartPtr<MathMLOperatorDictionary> dictionary = initOperatorDictionary<MathView>(logger, configuration);
logger->out(LOG_INFO, "Font size : %f", fontSize);
logger->out(LOG_INFO, "Page size : %fx%f", width, height);
logger->out(LOG_INFO, "Margins : %fx%f", xMargin, yMargin);
SmartPtr<MathView> view = MathView::create(logger);
view->setOperatorDictionary(dictionary);
view->setMathMLNamespaceContext(MathMLNamespaceContext::create(view, mgd));
#if GMV_ENABLE_BOXML
SmartPtr<BoxGraphicDevice> bgd = backend->getBoxGraphicDevice();
view->setBoxMLNamespaceContext(BoxMLNamespaceContext::create(view, bgd));
#endif
view->setDefaultFontSize(static_cast<unsigned>(fontSize));
#if GMV_ENABLE_BOXML
FormattingContext context(mgd, bgd);
#else
FormattingContext context(mgd);
#endif
const scaled widthS = mgd->evaluate(context, Length(width, unitId), scaled::zero());
const scaled heightS = mgd->evaluate(context, Length(height, unitId), scaled::zero());
const scaled xMarginS = mgd->evaluate(context, Length(xMargin, unitId), scaled::zero());
const scaled yMarginS = mgd->evaluate(context, Length(yMargin, unitId), scaled::zero());
view->setAvailableWidth(widthS - xMarginS * 2);
const char* file = 0;
while ((file = poptGetArg(ctxt)) != 0)
{
logger->out(LOG_INFO, "Processing `%s'...", file);
char* outName = getOutputFileName(file);
assert(outName != NULL);
#if 1
#if 0
xmlTextReaderPtr reader = xmlNewTextReaderFilename(file);
assert(reader);
view->loadReader(reader);
#endif
view->loadURI(file);
const BoundingBox box = view->getBoundingBox();
std::ofstream os(outName);
//SVG_StreamRenderingContext rc(logger, os);
SVG_libxml2_StreamRenderingContext rc(logger, os, view);
if (cropping)
{
rc.documentStart(box);
view->render(rc, 0, -box.height);
}
else
{
rc.documentStart(BoundingBox(widthS, box.height, heightS - box.height));
view->render(rc, xMarginS, -(yMarginS + box.height));
}
rc.documentEnd();
view->resetRootElement();
os.close();
// WARNING: currently the text reader is freed by libxmlXmlReader
// not sure this is what we want
//xmlFreeTextReader(reader);
#else
SMS sms(logger, view);
sms.process(argv[optind]);
#endif
optind++;
}
poptFreeContext(ctxt);
return 0;
}
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