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https://github.com/AirGuanZ/imgui-filebrowser

File browser implementation for dear-imgui. C++17 is required.
https://github.com/AirGuanZ/imgui-filebrowser

dear-imgui imgui imgui-filebrowser

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File browser implementation for dear-imgui. C++17 is required.

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README 

        
# imgui-filebrowser



[imgui-filebrowser](https://github.com/AirGuanZ/imgui-filebrowser) is a header-only file browser implementation for [dear-imgui](https://github.com/ocornut/imgui). C++ 17 is required.



![IMG](./screenshots/0.png)



## Getting Started



`imfilebrowser.h` should be included after `imgui.h`:



```cpp

#include 

#include 

```



Instead of creating a file dialog with an immediate function call, you need to create a `ImGui::FileBrowser` instance, open it with member function `Open()`, and call `Display()` in each frame. Here is a simple example:



```cpp

#include 

#include 



int main()

{

    //...initialize rendering window and imgui

    

    // create a file browser instance

    ImGui::FileBrowser fileDialog;

    

    // (optional) set browser properties

    fileDialog.SetTitle("title");

    fileDialog.SetTypeFilters({ ".h", ".cpp" });

    

    // mainloop

    while(continueRendering)

    {

        //...do other stuff like ImGui::NewFrame();

        

        if(ImGui::Begin("dummy window"))

        {

            // open file dialog when user clicks this button

            if(ImGui::Button("open file dialog"))

                fileDialog.Open();

        }

        ImGui::End();

        

        fileDialog.Display();

        

        if(fileDialog.HasSelected())

        {

            std::cout << "Selected filename" << fileDialog.GetSelected().string() << std::endl;

            fileDialog.ClearSelected();

        }

        

        //...do other stuff like ImGui::Render();

    }

    

    //...shutdown

}

```



## Options



Various options can be combined with '|' and passed to the constructor:



```cpp

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 pressnig 'ENTER'

    ImGuiFileBrowserFlags_SkipItemsCausingError = 1 << 10, // when entering a new directory, any error will interrupt the process, causing the file browser to fall back to the working directory.

                                                           // with this flag, if an error is caused by a specific item in the directory, that item will be skipped, allowing the process to continue.

    ImGuiFileBrowserFlags_EditPathString        = 1 << 11, // allow user to directly edit the whole path string

};

```



When `ImGuiFileBrowserFlags_MultipleSelection` is enabled, use `fileBrowser.GetMultiSelected()` to get all selected filenames (instead of `fileBrowser.GetSelected()`, which returns only one of them).



Here are some common examples:



```cpp

// (default) select single regular file for opening

0

// select multiple regular files for opening

ImGuiFileBrowserFlags_MultipleSelection

// select single directory for opening

ImGuiFileBrowserFlags_SelectDirectory

// select multiple directories for opening

ImGuiFileBrowserFlags_SelectDirectory | ImGuiFileBrowserFlags_MultipleSelection

// select single regular file for saving

ImGuiFileBrowserFlags_EnterNewFilename | ImGuiFileBrowserFlags_CreateNewDir

// select single directory for saving

ImGuiFileBrowserFlags_SelectDirectory | ImGuiFileBrowserFlags_CreateNewDir

// select single directory and hide regular files in browser

ImGuiFileBrowserFlags_SelectDirectory | ImGuiFileBrowserFlags_HideRegularFiles

```



## Usage



* When `ImGuiFileBrowserFlags_EditPathString` is set, click the top-right button `#` to directly edit the current directory.

* Click the top-right button `*` to refresh.

* Double click to enter a directory.

* Single click to (de)select a regular file (or directory, if `ImGuiFileBrowserFlags_SelectDirectory` is enabled).

*  When `ImGuiFileBrowserFlags_SelectDirectory` is enabled and no item is selected, click `ok` to choose the current directory as selected result.

*  When `ImGuiFileBrowserFlags_MultipleSelection` is enabled, hold  `Ctrl` for multi selection and `Shift` for range selection.  

*  When `ImGuiFileBrowserFlags_MultipleSelection` is enabled, use `Ctrl + A` to select all (filtered) items.

*  When `ImGuiFileBrowserFlags_CreateNewDir` is enabled, click the top-right button `+` to create a new directory.

*  When `ImGuiFileBrowserFlags_SelectDirectory` is not specified,  double click to choose a regular file as selected result.



## Type Filters



* Use `SetTypeFilters({".h", ".cpp"})` to set file extension filters.

* `.*` matches with any extension

* Filters are case-insensitive on Windows platform



## Note



The filebrowser implementation queries drive list via Win32 API (only on Windows). Thus `` is included in ``, which may pollute the global namespace. This can be solved by simply moving the `GetDrivesBitMask()` definition into a cpp file.