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Golf 1.16.2
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| /* | ||
| MIT License | ||
| Copyright (c) 2019-2022 Zhuang Guan | ||
| Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| of this software and associated documentation files (the "Software"), to deal | ||
| in the Software without restriction, including without limitation the rights | ||
| to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| copies of the Software, and to permit persons to whom the Software is | ||
| furnished to do so, subject to the following conditions: | ||
| The above copyright notice and this permission notice shall be included in all | ||
| copies or substantial portions of the Software. | ||
| THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | ||
| SOFTWARE. | ||
| */ | ||
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| #pragma once | ||
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| #include <crogine/Config.hpp> | ||
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| #include <filesystem> | ||
| #include <memory> | ||
| #include <string> | ||
| #include <vector> | ||
| #include <set> | ||
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| #ifndef IMGUI_VERSION | ||
| # error "include imgui.h before this header" | ||
| #endif | ||
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| using ImGuiFileBrowserFlags = int; | ||
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| enum ImGuiFileBrowserFlags_ | ||
| { | ||
| ImGuiFileBrowserFlags_SelectDirectory = 1 << 0, // select directory instead of regular file | ||
| ImGuiFileBrowserFlags_EnterNewFilename = 1 << 1, // allow user to enter new filename when selecting regular file | ||
| ImGuiFileBrowserFlags_NoModal = 1 << 2, // file browsing window is modal by default. specify this to use a popup window | ||
| ImGuiFileBrowserFlags_NoTitleBar = 1 << 3, // hide window title bar | ||
| ImGuiFileBrowserFlags_NoStatusBar = 1 << 4, // hide status bar at the bottom of browsing window | ||
| ImGuiFileBrowserFlags_CloseOnEsc = 1 << 5, // close file browser when pressing 'ESC' | ||
| ImGuiFileBrowserFlags_CreateNewDir = 1 << 6, // allow user to create new directory | ||
| ImGuiFileBrowserFlags_MultipleSelection = 1 << 7, // allow user to select multiple files. this will hide ImGuiFileBrowserFlags_EnterNewFilename | ||
| ImGuiFileBrowserFlags_HideRegularFiles = 1 << 8, // hide regular files when ImGuiFileBrowserFlags_SelectDirectory is enabled | ||
| ImGuiFileBrowserFlags_ConfirmOnEnter = 1 << 9, // confirm selection when pressing 'ENTER' | ||
| }; | ||
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| namespace ImGui | ||
| { | ||
| /*! | ||
| Usage: Create an instance of the the FileBrowser object, usually at State scope. | ||
| ImGuiFileBrowserFlags can be passed to ctor to configure behaviour such as multiple | ||
| file selection or opening a directory. | ||
| Then: | ||
| \code | ||
| //configure properties | ||
| m_fileBrowser.SetTitle("My Browser"); | ||
| m_fileBrowser.SetTypeFileters({".png"}); | ||
| registerWindow([]() | ||
| { | ||
| if(ImGui::Begin("My Window")) | ||
| { | ||
| if(ImGui::Button("Open Image")) | ||
| { | ||
| m_fileBrowser.Open(); | ||
| } | ||
| m_fileBrowser.Display(); //updates internal render list | ||
| if(m_fileBrowser.HasSelected()) | ||
| { | ||
| const std::string path = m_fileBrowser.GetSelected().string(); //note actually returns std::filesystem::path - may be more useful | ||
| m_fileBrowser.ClearSelected(); | ||
| //do stuff with file path | ||
| } | ||
| } | ||
| ImGui::End(); | ||
| }); | ||
| \endcode | ||
| */ | ||
| class CRO_EXPORT_API FileBrowser | ||
| { | ||
| public: | ||
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| // pwd is set to current working directory by default | ||
| explicit FileBrowser(ImGuiFileBrowserFlags flags = 0); | ||
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| FileBrowser(const FileBrowser ©From); | ||
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| FileBrowser &operator=(const FileBrowser ©From); | ||
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| // set the window position (in pixels) | ||
| // default is centered | ||
| void SetWindowPos(int posx, int posy) noexcept; | ||
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| // set the window size (in pixels) | ||
| // default is (700, 450) | ||
| void SetWindowSize(int width, int height) noexcept; | ||
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| // set the window title text | ||
| void SetTitle(std::string title); | ||
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| // open the browsing window | ||
| void Open(); | ||
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| // close the browsing window | ||
| void Close(); | ||
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| // the browsing window is opened or not | ||
| bool IsOpened() const noexcept; | ||
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| // display the browsing window if opened | ||
| void Display(); | ||
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| // returns true when there is a selected filename | ||
| bool HasSelected() const noexcept; | ||
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| // set current browsing directory | ||
| bool SetPwd(const std::filesystem::path &pwd = | ||
| std::filesystem::current_path()); | ||
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| // get current browsing directory | ||
| const std::filesystem::path &GetPwd() const noexcept; | ||
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| // returns selected filename. make sense only when HasSelected returns true | ||
| // when ImGuiFileBrowserFlags_MultipleSelection is enabled, only one of | ||
| // selected filename will be returned | ||
| std::filesystem::path GetSelected() const; | ||
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| // returns all selected filenames. | ||
| // when ImGuiFileBrowserFlags_MultipleSelection is enabled, use this | ||
| // instead of GetSelected | ||
| std::vector<std::filesystem::path> GetMultiSelected() const; | ||
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| // set selected filename to empty | ||
| void ClearSelected(); | ||
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| // (optional) set file type filters. eg. { ".h", ".cpp", ".hpp" } | ||
| // ".*" matches any file types | ||
| void SetTypeFilters(const std::vector<std::string> &typeFilters); | ||
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| // set currently applied type filter | ||
| // default value is 0 (the first type filter) | ||
| void SetCurrentTypeFilterIndex(int index); | ||
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| // when ImGuiFileBrowserFlags_EnterNewFilename is set | ||
| // this function will pre-fill the input dialog with a filename. | ||
| void SetInputName(std::string_view input); | ||
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| private: | ||
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| template <class Functor> | ||
| struct ScopeGuard | ||
| { | ||
| ScopeGuard(Functor&& t) : func(std::move(t)) { } | ||
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| ~ScopeGuard() { func(); } | ||
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| private: | ||
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| Functor func; | ||
| }; | ||
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| struct FileRecord | ||
| { | ||
| bool isDir = false; | ||
| std::filesystem::path name; | ||
| std::string showName; | ||
| std::filesystem::path extension; | ||
| }; | ||
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| static std::string ToLower(const std::string &s); | ||
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| void UpdateFileRecords(); | ||
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| void SetPwdUncatched(const std::filesystem::path &pwd); | ||
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| bool IsExtensionMatched(const std::filesystem::path &extension) const; | ||
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| void ClearRangeSelectionState(); | ||
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| #ifdef _WIN32 | ||
| static std::uint32_t GetDrivesBitMask(); | ||
| #endif | ||
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| // for c++17 compatibility | ||
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| #if defined(__cpp_lib_char8_t) | ||
| static std::string u8StrToStr(std::u8string s); | ||
| #endif | ||
| static std::string u8StrToStr(std::string s); | ||
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| int width_; | ||
| int height_; | ||
| int posX_; | ||
| int posY_; | ||
| ImGuiFileBrowserFlags flags_; | ||
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| std::string title_; | ||
| std::string openLabel_; | ||
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| bool openFlag_; | ||
| bool closeFlag_; | ||
| bool isOpened_; | ||
| bool ok_; | ||
| bool posIsSet_; | ||
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| std::string statusStr_; | ||
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| std::vector<std::string> typeFilters_; | ||
| unsigned int typeFilterIndex_; | ||
| bool hasAllFilter_; | ||
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| std::filesystem::path pwd_; | ||
| std::set<std::filesystem::path> selectedFilenames_; | ||
| unsigned int rangeSelectionStart_; // enable range selection when shift is pressed | ||
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| std::vector<FileRecord> fileRecords_; | ||
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| // IMPROVE: truncate when selectedFilename_.length() > inputNameBuf_.size() - 1 | ||
| static constexpr size_t INPUT_NAME_BUF_SIZE = 512; | ||
| std::unique_ptr<std::array<char, INPUT_NAME_BUF_SIZE>> inputNameBuf_; | ||
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| std::string openNewDirLabel_; | ||
| std::unique_ptr<std::array<char, INPUT_NAME_BUF_SIZE>> newDirNameBuf_; | ||
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| #ifdef _WIN32 | ||
| uint32_t drives_; | ||
| #endif | ||
| }; | ||
| } // namespace ImGui |
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