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/**
* \brief SpinButton widget, that allows entry of both '.' and ',' for the decimal, even when in numeric mode.
*/
/*
* Author:
* Johan B. C. Engelen
*
* Copyright (C) 2011 Author
*
* Released under GNU GPL. Read the file 'COPYING' for more information.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "spinbutton.h"
#include "unit-menu.h"
#include "util/expression-evaluator.h"
namespace Inkscape {
namespace UI {
namespace Widget {
/**
* This callback function should try to convert the entered text to a number and write it to newvalue.
* It calls a method to evaluate the (potential) mathematical expression.
*
* @retval false No conversion done, continue with default handler.
* @retval true Conversion successful, don't call default handler.
*/
int
SpinButton::on_input(double* newvalue)
{
try {
Inkscape::Util::GimpEevlQuantity result = Inkscape::Util::gimp_eevl_evaluate (get_text().c_str(), _unit_menu ? &_unit_menu->getUnit() : NULL);
// check if output dimension corresponds to input unit
if (_unit_menu && result.dimension != (_unit_menu->getUnit().isAbsolute() ? 1 : 0) ) {
throw Inkscape::Util::EvaluatorException("Input dimensions do not match with parameter dimensions.","");
}
*newvalue = result.value;
}
catch(Inkscape::Util::EvaluatorException &e) {
g_message ("%s", e.what());
return false;
}
return true;
}
} // namespace Widget
} // namespace UI
} // namespace Inkscape
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=c++:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :
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