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/*
Native File Dialog Extended
Repository: https://github.com/btzy/nativefiledialog-extended
License: Zlib
Author: Bernard Teo
This header is a thin C++ wrapper for nfd.h.
C++ projects can choose to use this header instead of nfd.h directly.
Refer to documentation on nfd.h for instructions on how to use these functions.
*/
#ifndef _NFD_HPP
#define _NFD_HPP
#include <nfd.h>
#include <cstddef> // for std::size_t
#include <memory> // for std::unique_ptr
#ifdef NFD_THROWS_EXCEPTIONS
#include <stdexcept>
#endif
namespace NFD {
inline nfdresult_t Init() noexcept {
return ::NFD_Init();
}
inline void Quit() noexcept {
::NFD_Quit();
}
inline void FreePath(nfdnchar_t* outPath) noexcept {
::NFD_FreePathN(outPath);
}
inline nfdresult_t OpenDialog(nfdnchar_t*& outPath,
const nfdnfilteritem_t* filterList = nullptr,
nfdfiltersize_t filterCount = 0,
const nfdnchar_t* defaultPath = nullptr,
nfdwindowhandle_t parentWindow = {}) noexcept {
const nfdopendialognargs_t args{filterList, filterCount, defaultPath, parentWindow};
return ::NFD_OpenDialogN_With(&outPath, &args);
}
inline nfdresult_t OpenDialogMultiple(const nfdpathset_t*& outPaths,
const nfdnfilteritem_t* filterList = nullptr,
nfdfiltersize_t filterCount = 0,
const nfdnchar_t* defaultPath = nullptr,
nfdwindowhandle_t parentWindow = {}) noexcept {
const nfdopendialognargs_t args{filterList, filterCount, defaultPath, parentWindow};
return ::NFD_OpenDialogMultipleN_With(&outPaths, &args);
}
inline nfdresult_t SaveDialog(nfdnchar_t*& outPath,
const nfdnfilteritem_t* filterList = nullptr,
nfdfiltersize_t filterCount = 0,
const nfdnchar_t* defaultPath = nullptr,
const nfdnchar_t* defaultName = nullptr,
nfdwindowhandle_t parentWindow = {}) noexcept {
const nfdsavedialognargs_t args{
filterList, filterCount, defaultPath, defaultName, parentWindow};
return ::NFD_SaveDialogN_With(&outPath, &args);
}
inline nfdresult_t PickFolder(nfdnchar_t*& outPath,
const nfdnchar_t* defaultPath = nullptr,
nfdwindowhandle_t parentWindow = {}) noexcept {
const nfdpickfoldernargs_t args{defaultPath, parentWindow};
return ::NFD_PickFolderN_With(&outPath, &args);
}
inline nfdresult_t PickFolderMultiple(const nfdpathset_t*& outPaths,
const nfdnchar_t* defaultPath = nullptr,
nfdwindowhandle_t parentWindow = {}) noexcept {
const nfdpickfoldernargs_t args{defaultPath, parentWindow};
return ::NFD_PickFolderMultipleN_With(&outPaths, &args);
}
inline const char* GetError() noexcept {
return ::NFD_GetError();
}
inline void ClearError() noexcept {
::NFD_ClearError();
}
namespace PathSet {
inline nfdresult_t Count(const nfdpathset_t* pathSet, nfdpathsetsize_t& count) noexcept {
return ::NFD_PathSet_GetCount(pathSet, &count);
}
inline nfdresult_t GetPath(const nfdpathset_t* pathSet,
nfdpathsetsize_t index,
nfdnchar_t*& outPath) noexcept {
return ::NFD_PathSet_GetPathN(pathSet, index, &outPath);
}
inline void FreePath(nfdnchar_t* filePath) noexcept {
::NFD_PathSet_FreePathN(filePath);
}
inline void Free(const nfdpathset_t* pathSet) noexcept {
::NFD_PathSet_Free(pathSet);
}
} // namespace PathSet
#ifdef NFD_DIFFERENT_NATIVE_FUNCTIONS
/* we need the C++ bindings for the UTF-8 functions as well, because there are different functions
* for them */
inline void FreePath(nfdu8char_t* outPath) noexcept {
::NFD_FreePathU8(outPath);
}
inline nfdresult_t OpenDialog(nfdu8char_t*& outPath,
const nfdu8filteritem_t* filterList = nullptr,
nfdfiltersize_t filterCount = 0,
const nfdu8char_t* defaultPath = nullptr,
nfdwindowhandle_t parentWindow = {}) noexcept {
const nfdopendialogu8args_t args{filterList, filterCount, defaultPath, parentWindow};
return ::NFD_OpenDialogU8_With(&outPath, &args);
}
inline nfdresult_t OpenDialogMultiple(const nfdpathset_t*& outPaths,
const nfdu8filteritem_t* filterList = nullptr,
nfdfiltersize_t filterCount = 0,
const nfdu8char_t* defaultPath = nullptr,
nfdwindowhandle_t parentWindow = {}) noexcept {
const nfdopendialogu8args_t args{filterList, filterCount, defaultPath, parentWindow};
return ::NFD_OpenDialogMultipleU8_With(&outPaths, &args);
}
inline nfdresult_t SaveDialog(nfdu8char_t*& outPath,
const nfdu8filteritem_t* filterList = nullptr,
nfdfiltersize_t filterCount = 0,
const nfdu8char_t* defaultPath = nullptr,
const nfdu8char_t* defaultName = nullptr,
nfdwindowhandle_t parentWindow = {}) noexcept {
const nfdsavedialogu8args_t args{
filterList, filterCount, defaultPath, defaultName, parentWindow};
return ::NFD_SaveDialogU8_With(&outPath, &args);
}
inline nfdresult_t PickFolder(nfdu8char_t*& outPath,
const nfdu8char_t* defaultPath = nullptr,
nfdwindowhandle_t parentWindow = {}) noexcept {
const nfdpickfolderu8args_t args{defaultPath, parentWindow};
return ::NFD_PickFolderU8_With(&outPath, &args);
}
inline nfdresult_t PickFolderMultiple(const nfdpathset_t*& outPaths,
const nfdu8char_t* defaultPath = nullptr,
nfdwindowhandle_t parentWindow = {}) noexcept {
const nfdpickfolderu8args_t args{defaultPath, parentWindow};
return ::NFD_PickFolderMultipleU8_With(&outPaths, &args);
}
namespace PathSet {
inline nfdresult_t GetPath(const nfdpathset_t* pathSet,
nfdpathsetsize_t index,
nfdu8char_t*& outPath) noexcept {
return ::NFD_PathSet_GetPathU8(pathSet, index, &outPath);
}
inline void FreePath(nfdu8char_t* filePath) noexcept {
::NFD_PathSet_FreePathU8(filePath);
}
} // namespace PathSet
#endif
// smart objects
class Guard {
public:
#ifndef NFD_THROWS_EXCEPTIONS
inline Guard() noexcept {
Init(); // always assume that initialization succeeds
}
#else
inline Guard() {
if (!Init()) {
throw std::runtime_error(GetError());
}
}
#endif
inline ~Guard() noexcept { Quit(); }
// Not allowed to copy or move this class
Guard(const Guard&) = delete;
Guard& operator=(const Guard&) = delete;
};
template <typename T>
struct PathDeleter {
inline void operator()(T* ptr) const noexcept { FreePath(ptr); }
};
typedef std::unique_ptr<nfdchar_t, PathDeleter<nfdchar_t>> UniquePath;
typedef std::unique_ptr<nfdnchar_t, PathDeleter<nfdnchar_t>> UniquePathN;
typedef std::unique_ptr<nfdu8char_t, PathDeleter<nfdu8char_t>> UniquePathU8;
struct PathSetDeleter {
inline void operator()(const nfdpathset_t* ptr) const noexcept { PathSet::Free(ptr); }
};
typedef std::unique_ptr<const nfdpathset_t, PathSetDeleter> UniquePathSet;
template <typename T>
struct PathSetPathDeleter {
inline void operator()(T* ptr) const noexcept { PathSet::FreePath(ptr); }
};
typedef std::unique_ptr<nfdchar_t, PathSetPathDeleter<nfdchar_t>> UniquePathSetPath;
typedef std::unique_ptr<nfdnchar_t, PathSetPathDeleter<nfdnchar_t>> UniquePathSetPathN;
typedef std::unique_ptr<nfdu8char_t, PathSetPathDeleter<nfdu8char_t>> UniquePathSetPathU8;
inline nfdresult_t OpenDialog(UniquePathN& outPath,
const nfdnfilteritem_t* filterList = nullptr,
nfdfiltersize_t filterCount = 0,
const nfdnchar_t* defaultPath = nullptr,
nfdwindowhandle_t parentWindow = {}) noexcept {
nfdnchar_t* out;
nfdresult_t res = OpenDialog(out, filterList, filterCount, defaultPath, parentWindow);
if (res == NFD_OKAY) {
outPath.reset(out);
}
return res;
}
inline nfdresult_t OpenDialogMultiple(UniquePathSet& outPaths,
const nfdnfilteritem_t* filterList = nullptr,
nfdfiltersize_t filterCount = 0,
const nfdnchar_t* defaultPath = nullptr,
nfdwindowhandle_t parentWindow = {}) noexcept {
const nfdpathset_t* out;
nfdresult_t res = OpenDialogMultiple(out, filterList, filterCount, defaultPath, parentWindow);
if (res == NFD_OKAY) {
outPaths.reset(out);
}
return res;
}
inline nfdresult_t SaveDialog(UniquePathN& outPath,
const nfdnfilteritem_t* filterList = nullptr,
nfdfiltersize_t filterCount = 0,
const nfdnchar_t* defaultPath = nullptr,
const nfdnchar_t* defaultName = nullptr,
nfdwindowhandle_t parentWindow = {}) noexcept {
nfdnchar_t* out;
nfdresult_t res =
SaveDialog(out, filterList, filterCount, defaultPath, defaultName, parentWindow);
if (res == NFD_OKAY) {
outPath.reset(out);
}
return res;
}
inline nfdresult_t PickFolder(UniquePathN& outPath,
const nfdnchar_t* defaultPath = nullptr,
nfdwindowhandle_t parentWindow = {}) noexcept {
nfdnchar_t* out;
nfdresult_t res = PickFolder(out, defaultPath, parentWindow);
if (res == NFD_OKAY) {
outPath.reset(out);
}
return res;
}
inline nfdresult_t PickFolderMultiple(UniquePathSet& outPaths,
const nfdnchar_t* defaultPath = nullptr,
nfdwindowhandle_t parentWindow = {}) noexcept {
const nfdpathset_t* out;
nfdresult_t res = PickFolderMultiple(out, defaultPath, parentWindow);
if (res == NFD_OKAY) {
outPaths.reset(out);
}
return res;
}
#ifdef NFD_DIFFERENT_NATIVE_FUNCTIONS
inline nfdresult_t OpenDialog(UniquePathU8& outPath,
const nfdu8filteritem_t* filterList = nullptr,
nfdfiltersize_t filterCount = 0,
const nfdu8char_t* defaultPath = nullptr,
nfdwindowhandle_t parentWindow = {}) noexcept {
nfdu8char_t* out;
nfdresult_t res = OpenDialog(out, filterList, filterCount, defaultPath, parentWindow);
if (res == NFD_OKAY) {
outPath.reset(out);
}
return res;
}
inline nfdresult_t OpenDialogMultiple(UniquePathSet& outPaths,
const nfdu8filteritem_t* filterList = nullptr,
nfdfiltersize_t filterCount = 0,
const nfdu8char_t* defaultPath = nullptr,
nfdwindowhandle_t parentWindow = {}) noexcept {
const nfdpathset_t* out;
nfdresult_t res = OpenDialogMultiple(out, filterList, filterCount, defaultPath, parentWindow);
if (res == NFD_OKAY) {
outPaths.reset(out);
}
return res;
}
inline nfdresult_t SaveDialog(UniquePathU8& outPath,
const nfdu8filteritem_t* filterList = nullptr,
nfdfiltersize_t filterCount = 0,
const nfdu8char_t* defaultPath = nullptr,
const nfdu8char_t* defaultName = nullptr,
nfdwindowhandle_t parentWindow = {}) noexcept {
nfdu8char_t* out;
nfdresult_t res =
SaveDialog(out, filterList, filterCount, defaultPath, defaultName, parentWindow);
if (res == NFD_OKAY) {
outPath.reset(out);
}
return res;
}
inline nfdresult_t PickFolder(UniquePathU8& outPath,
const nfdu8char_t* defaultPath = nullptr,
nfdwindowhandle_t parentWindow = {}) noexcept {
nfdu8char_t* out;
nfdresult_t res = PickFolder(out, defaultPath, parentWindow);
if (res == NFD_OKAY) {
outPath.reset(out);
}
return res;
}
inline nfdresult_t PickFolderMultiple(UniquePathSet& outPaths,
const nfdu8char_t* defaultPath = nullptr,
nfdwindowhandle_t parentWindow = {}) noexcept {
const nfdpathset_t* out;
nfdresult_t res = PickFolderMultiple(out, defaultPath, parentWindow);
if (res == NFD_OKAY) {
outPaths.reset(out);
}
return res;
}
#endif
namespace PathSet {
inline nfdresult_t Count(const UniquePathSet& uniquePathSet, nfdpathsetsize_t& count) noexcept {
return Count(uniquePathSet.get(), count);
}
inline nfdresult_t GetPath(const UniquePathSet& uniquePathSet,
nfdpathsetsize_t index,
UniquePathSetPathN& outPath) noexcept {
nfdnchar_t* out;
nfdresult_t res = GetPath(uniquePathSet.get(), index, out);
if (res == NFD_OKAY) {
outPath.reset(out);
}
return res;
}
#ifdef NFD_DIFFERENT_NATIVE_FUNCTIONS
inline nfdresult_t GetPath(const UniquePathSet& uniquePathSet,
nfdpathsetsize_t index,
UniquePathSetPathU8& outPath) noexcept {
nfdu8char_t* out;
nfdresult_t res = GetPath(uniquePathSet.get(), index, out);
if (res == NFD_OKAY) {
outPath.reset(out);
}
return res;
}
#endif
} // namespace PathSet
} // namespace NFD
#endif
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