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QPDFJob: de-templatize do_process and do_process_once

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This commit is contained in:
Jay Berkenbilt 2022-01-05 16:06:10 -05:00
parent 2f631997f2
commit e2975b9ed0
1 changed files with 15 additions and 14 deletions
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29
libqpdf/QPDFJob.cc
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@ -1830,11 +1830,9 @@ ImageOptimizer::provideStreamData(int, int, Pipeline* pipeline)
false, false);
}
template <typename T>
static PointerHolder<QPDF> do_process_once(
void (QPDF::*fn)(T, char const*),
T item, char const* password,
QPDFJob& o, bool empty)
std::function<void(QPDF*, char const*)> fn,
char const* password, QPDFJob& o, bool empty)
{
PointerHolder<QPDF> pdf = new QPDF;
set_qpdf_options(*pdf, o);
@ -1844,16 +1842,14 @@ static PointerHolder<QPDF> do_process_once(
}
else
{
((*pdf).*fn)(item, password);
fn(pdf.getPointer(), password);
}
return pdf;
}
template <typename T>
static PointerHolder<QPDF> do_process(
void (QPDF::*fn)(T, char const*),
T item, char const* password,
QPDFJob& o, bool empty)
std::function<void(QPDF*, char const*)> fn,
char const* password, QPDFJob& o, bool empty)
{
// If a password has been specified but doesn't work, try other
// passwords that are equivalent in different character encodings.
@ -1882,7 +1878,7 @@ static PointerHolder<QPDF> do_process(
{
// There is no password, or we're not doing recovery, so just
// do the normal processing with the supplied password.
return do_process_once(fn, item, password, o, empty);
return do_process_once(fn, password, o, empty);
}
// Get a list of otherwise encoded strings. Keep in scope for this
@ -1916,7 +1912,7 @@ static PointerHolder<QPDF> do_process(
{
try
{
return do_process_once(fn, item, *iter, o, empty);
return do_process_once(fn, *iter, o, empty);
}
catch (QPDFExc& e)
{
@ -1946,14 +1942,19 @@ PointerHolder<QPDF>
QPDFJob::processFile(char const* filename, char const* password)
{
QPDFJob& o = *this; // QXXXQ
return do_process(&QPDF::processFile, filename, password, o,
strcmp(filename, "") == 0);
auto f1 = std::mem_fn<void(char const*, char const*)>(&QPDF::processFile);
auto fn = std::bind(
f1, std::placeholders::_1, filename, std::placeholders::_2);
return do_process(fn, password, o, strcmp(filename, "") == 0);
}
static PointerHolder<QPDF> process_input_source(
PointerHolder<InputSource> is, char const* password, QPDFJob& o)
{
return do_process(&QPDF::processInputSource, is, password, o, false);
auto f1 = std::mem_fn(&QPDF::processInputSource);
auto fn = std::bind(
f1, std::placeholders::_1, is, std::placeholders::_2);
return do_process(fn, password, o, false);
}
void