subsurface/gettextfromc.cpp
Maximilian Güntner 2ef80930ff change the key from const char * to QByteArray
if trGettext() gets called with a *text that resides
in the stack, the QHash will return incorrect values after
the second call of trGettext() with that *text.

Example (assuming nothing has been translated):

void func(const char *text) {
        char *translated = trGettext(text);
        doSomethingWith(translated);
}

func("foo"); (1)
func("bar"); (2)

(1) *translated is "foo"
(2) *translated should be "bar" but is "foo" because
    the key (const char*) points to the value "foo"
    which has been set in the previous call (1).

Signed-off-by: Maximilian Güntner <maximilian.guentner@gmail.com>
2013-11-02 02:55:02 +01:00

27 lines
548 B
C++

#include <QCoreApplication>
#include <QString>
#include <gettextfromc.h>
const char *gettextFromC::trGettext(const char *text)
{
QByteArray &result = translationCache[QByteArray(text)];
if (result.isEmpty())
result = tr(text).toUtf8();
return result.constData();
}
void gettextFromC::reset(void)
{
translationCache.clear();
}
gettextFromC* gettextFromC::instance()
{
static gettextFromC *self = new gettextFromC();
return self;
}
extern "C" const char *trGettext(const char *text)
{
return gettextFromC::instance()->trGettext(text);
}