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Move static variable for finalize font config to be global scope

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This commit is contained in:
Filip Sykala 2022-03-30 16:11:27 +02:00
parent 6610bf2eb1
commit 0bf90ae0af
3 changed files with 18 additions and 35 deletions
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16
src/slic3r/Utils/FontConfigHelp.cpp
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@ -8,14 +8,18 @@
using namespace Slic3r::GUI;
FontConfigHelp::FontConfigHelp() { FcInit(); }
FontConfigHelp::~FontConfigHelp() {
// fccache.c:795: FcCacheFini: Assertion `fcCacheChains[i] == NULL' failed.
// FcFini();
}
// @Vojta suggest to make static variable global
// Guard for finalize Font Config
// Will be finalized on application exit
static std::optional<Slic3r::ScopeGuard> finalize_guard;
std::string FontConfigHelp::get_font_path(const wxFont &font)
std::string Slic3r::GUI::get_font_path(const wxFont &font)
{
if (!finalize_guard.has_value()) {
FcInit();
finalize_guard.emplace([]() { FcFini(); });
}
FcConfig *fc = FcInitLoadConfigAndFonts();
if (fc == nullptr) return "";
ScopeGuard sg_fc([fc]() { FcConfigDestroy(fc); });

28
src/slic3r/Utils/FontConfigHelp.hpp
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@ -10,30 +10,12 @@
namespace Slic3r::GUI {
/// <summary>
/// helper object for RAII access to font config
/// initialize & finalize FontConfig
/// initialize font config
/// Convert wx widget font to file path
/// inspired by wxpdfdoc -
/// https://github.com/utelle/wxpdfdoc/blob/5bdcdb9953327d06dc50ec312685ccd9bc8400e0/src/pdffontmanager.cpp
/// </summary>
class FontConfigHelp
{
public:
/// <summary>
/// initialize font config
/// </summary>
FontConfigHelp();
/// <summary>
/// free font config resources
/// </summary>
~FontConfigHelp();
/// <summary>
/// initialize font config
/// Convert wx widget font to file path
/// inspired by wxpdfdoc -
/// https://github.com/utelle/wxpdfdoc/blob/5bdcdb9953327d06dc50ec312685ccd9bc8400e0/src/pdffontmanager.cpp
/// </summary>
std::string get_font_path(const wxFont &font);
};
std::string get_font_path(const wxFont &font);
} // namespace Slic3r
#endif // EXIST_FONT_CONFIG_INCLUDE

7
src/slic3r/Utils/WxFontUtils.cpp
View File

@ -59,9 +59,7 @@ bool WxFontUtils::can_load(const wxFont &font)
return false;
return is_valid_ttf(file_path);
#elif defined(__linux__)
// TODO: find better way
static FontConfigHelp help;
std::string font_path = help.get_font_path(font);
std::string font_path = Slic3r::GUI::get_font_path(font);
return !font_path.empty();
#endif
return false;
@ -88,8 +86,7 @@ std::unique_ptr<Emboss::FontFile> WxFontUtils::create_font_file(const wxFont &fo
file_path = file_path.substr(start, file_path.size() - start);
return Emboss::create_font_file(file_path.c_str());
#elif defined(__linux__)
static FontConfigHelp help;
std::string font_path = help.get_font_path(font);
std::string font_path = Slic3r::GUI::get_font_path(font);
if (font_path.empty()) return nullptr;
return Emboss::create_font_file(font_path.c_str());
#else