file_dialog.h

/*
 * Copyright 2021 Adobe. All rights reserved.
 * This file is licensed to you under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License. You may obtain a copy
 * of the License at http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under
 * the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS
 * OF ANY KIND, either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
#pragma once
 
#include <lagrange/ui/api.h>
#include <lagrange/fs/filesystem.h>
 
#include <vector>
 
namespace lagrange {
namespace ui {
 
class LA_UI_API FileDialogPath
{
public:
    static FileDialogPath make_input_path(const fs::path& path);
    static FileDialogPath make_output_path(const fs::path& path);
 
    FileDialogPath(FileDialogPath&& other);
    FileDialogPath& operator=(FileDialogPath&& other);
    ~FileDialogPath();
 
    operator const fs::path &() const { return path(); }
    operator std::string() const { return string(); }
 
    std::string string() const { return path().string(); }
 
    bool empty() const noexcept { return path().empty(); }
 
    const fs::path& path() const;
 
protected:
    FileDialogPath(const fs::path& path);
    struct FileDialogPathImpl;
    std::unique_ptr<FileDialogPathImpl> m_impl;
};
 
 
struct FileFilter
{
    std::string name;
 
    std::string pattern;
};
 
enum class FileSave {
    ConfirmOverwrite, 
    SilentOverwrite, 
};
 
enum class FolderOpen {
    LastOpened, 
    ForcePath 
};
 
LA_UI_API FileDialogPath open_file(
    const std::string& title,
    const fs::path& default_path = ".",
    const std::vector<FileFilter>& filters = {{"All Files", "*"}});
 
LA_UI_API std::vector<FileDialogPath> open_files(
    const std::string& title,
    const fs::path& default_path = ".",
    const std::vector<FileFilter>& filters = {{"All Files", "*"}});
 
LA_UI_API FileDialogPath save_file(
    const std::string& title,
    const fs::path& default_path = ".",
    const std::vector<FileFilter>& filters = {{"All Files", "*"}},
    FileSave overwrite_behavior = FileSave::ConfirmOverwrite);
 
LA_UI_API FileDialogPath open_folder(
    const std::string& title,
    const fs::path& default_path = ".",
    FolderOpen open_behavior = FolderOpen::LastOpened);
 
 
namespace utils {
LA_UI_API std::string transform_filters_to_accept(const std::vector<FileFilter>& filters);
 
} // namespace utils
 
} // namespace ui
} // namespace lagrange