private static List <string> GetFileSystemEntries(ref FilePickerDefinition fpDef, string fullName)
{
var files = new List <string>();
var dirs = new List <string>();
foreach (var fse in Directory.GetFileSystemEntries(fullName, ""))
{
if (Directory.Exists(fse))
{
dirs.Add(fse);
}
else if (!fpDef.OnlyAllowFolders)
{
if (fpDef.AllowedExtensions != null)
{
var ext = Path.GetExtension(fse);
if (fpDef.AllowedExtensions.Contains(ext))
{
files.Add(fse);
}
}
else
{
files.Add(fse);
}
}
}
var ret = new List <string>(dirs);
ret.AddRange(files);
return(ret);
}
public static FilePickerDefinition CreateFilePickerDefinition(string startingPath, string actionLabel, string searchFilter = null,
bool onlyAllowFolders = false)
{
if (File.Exists(startingPath))
{
startingPath = new FileInfo(startingPath).DirectoryName;
}
else if (string.IsNullOrEmpty(startingPath) || !Directory.Exists(startingPath))
{
startingPath = Environment.CurrentDirectory;
if (string.IsNullOrEmpty(startingPath))
{
startingPath = AppContext.BaseDirectory;
}
}
var fp = new FilePickerDefinition
{
RootFolder = "/", CurrentFolder = startingPath, OnlyAllowFolders = onlyAllowFolders,
ActionButtonLabel = actionLabel,
executingPath = Path.GetDirectoryName(Assembly.GetEntryAssembly()?.Location)
};
if (searchFilter != null)
{
if (fp.AllowedExtensions != null)
{
fp.AllowedExtensions.Clear();
}
else
{
fp.AllowedExtensions = new List <string>();
}
fp.AllowedExtensions.AddRange(searchFilter.Split(new[] { '|' },
StringSplitOptions.RemoveEmptyEntries));
}
return(fp);
}
public static bool DoFilePicker(ref FilePickerDefinition fpDef)
{
ImGui.Text(Path.GetFileName(fpDef.RootFolder) + fpDef.CurrentFolder.Replace(fpDef.RootFolder, ""));
bool result = false;
var ch = ImGui.GetContentRegionAvail();
var frameHeight = ch.Y - (ImGui.GetTextLineHeight() * 2 + ImGui.GetStyle().WindowPadding.Y * 3.5f);
if (ImGui.BeginChildFrame(1, new Vector2(0, frameHeight),
ImGuiWindowFlags.ChildWindow | ImGuiWindowFlags.NoResize))
{
var di = new DirectoryInfo(fpDef.CurrentFolder);
if (di.Exists)
{
if (di.Parent != null && fpDef.CurrentFolder != fpDef.RootFolder)
{
ImGui.PushStyleColor(ImGuiCol.Text, Color.Yellow.PackedValue);
if (ImGui.Selectable("../", false, ImGuiSelectableFlags.DontClosePopups))
{
fpDef.CurrentFolder = di.Parent.FullName;
}
ImGui.PopStyleColor();
}
var fileSystemEntries = GetFileSystemEntries(ref fpDef, di.FullName);
foreach (var fse in fileSystemEntries)
{
if (Directory.Exists(fse))
{
var name = Path.GetFileName(fse);
ImGui.PushStyleColor(ImGuiCol.Text, Color.Yellow.PackedValue);
if (ImGui.Selectable(name + "/", false, ImGuiSelectableFlags.DontClosePopups))
{
fpDef.CurrentFolder = fse;
}
ImGui.PopStyleColor();
}
else
{
var name = Path.GetFileName(fse);
bool isSelected = fpDef.SelectedAbsolutePath == fse;
if (ImGui.Selectable(name, isSelected, ImGuiSelectableFlags.DontClosePopups))
{
fpDef.SelectedAbsolutePath = fse;
}
if (ImGui.IsMouseDoubleClicked(0) && ImGui.IsItemHovered())
{
result = true;
ImGui.CloseCurrentPopup();
}
}
}
}
}
ImGui.EndChildFrame();
if (fpDef.OnlyAllowFolders)
{
fpDef.SelectedAbsolutePath = fpDef.CurrentFolder;
fpDef.SelectedRelativePath = fpDef.SelectedAbsolutePath.Substring(fpDef.executingPath.Length + 1);
}
else
{
if (!string.IsNullOrEmpty(fpDef.SelectedAbsolutePath))
{
fpDef.SelectedRelativePath = fpDef.SelectedAbsolutePath.Substring(fpDef.executingPath.Length + 1);
fpDef.SelectedFileName = Path.GetFileName(fpDef.SelectedAbsolutePath);
}
ImGui.SetNextItemWidth(ch.X);
string fileName = fpDef.SelectedFileName ?? string.Empty;
ImGui.InputText(String.Empty, ref fileName, 64);
if (!string.IsNullOrEmpty(fileName))
{
fpDef.SelectedAbsolutePath = Path.Combine(fpDef.CurrentFolder, fileName);
fpDef.SelectedRelativePath =
Path.Combine(Path.GetDirectoryName(fpDef.SelectedRelativePath), fileName);
}
}
if (ImGui.Button("Cancel"))
{
result = false;
ImGui.CloseCurrentPopup();
}
if (fpDef.SelectedAbsolutePath != null)
{
ImGui.SameLine();
if (ImGui.Button(fpDef.ActionButtonLabel))
{
result = true;
ImGui.CloseCurrentPopup();
}
}
return(result);
}
