mirror of
https://github.com/gui-cs/Terminal.Gui.git
synced 2025-12-31 02:08:03 +01:00
a8d1a79615
* Refactor FileDialogTreeBuilder to be more generally useful outside of dialog context * Fix comparer * Change TreeViewFileSystem scenario to use the core builder * Refactor icon provision for reusability * Add IsOpenGetter implementations * Xmldoc and tests * xmldoc and trim icon when blank (files and no nerd) * unit test fixes * FixFix unit tests when running on linux * Add option to pick which icon set to use for TreeViewFileSystem * Add spaces when using nerd to avoid icon overaps * Refactor the addition of space for nerd icons to reduce code duplication
86 lines
2.6 KiB
C#
86 lines
2.6 KiB
C#
using System;
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using System.IO;
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using System.IO.Abstractions;
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using System.Text;
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namespace Terminal.Gui {
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/// <summary>
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/// Determines which symbol to use to represent files and directories.
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/// </summary>
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public class FileSystemIconProvider {
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/// <summary>
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/// <para>
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/// Gets or sets a flag indicating whether to use Nerd Font icons.
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/// Defaults to <see cref="NerdFonts.Enable"/> which can be configured
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/// by end users from their <c>./.tui/config.json</c>
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/// via <see cref="ConfigurationManager"/>.
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/// </para>
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/// <remarks>Enabling <see cref="UseNerdIcons"/> implicitly
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/// disables <see cref="UseUnicodeCharacters"/>.</remarks>
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/// </summary>
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public bool UseNerdIcons {
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get => _useNerdIcons; set {
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_useNerdIcons = value;
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if (value) {
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UseUnicodeCharacters = false;
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}
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}
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}
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/// <summary>
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/// Gets or sets a flag indicating whether to use common unicode
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/// characters for file/directory icons.
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/// </summary>
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public bool UseUnicodeCharacters {
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get => _useUnicodeCharacters;
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set {
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_useUnicodeCharacters = value;
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if (value) {
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UseNerdIcons = false;
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}
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}
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}
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private NerdFonts _nerd = new NerdFonts ();
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private bool _useNerdIcons = NerdFonts.Enable;
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private bool _useUnicodeCharacters;
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/// <summary>
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/// Gets or sets the delegate to be used to determine opened state of directories
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/// when resolving <see cref="GetIcon(IFileSystemInfo)"/>. Defaults to always false.
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/// </summary>
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public Func<IDirectoryInfo, bool> IsOpenGetter { get; set; } = (d) => false;
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/// <summary>
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/// Returns the character to use to represent <paramref name="fileSystemInfo"/> or an empty
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/// space if no icon should be used.
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/// </summary>
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/// <param name="fileSystemInfo">The file or directory requiring an icon.</param>
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/// <returns></returns>
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public Rune GetIcon (IFileSystemInfo fileSystemInfo)
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{
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if (UseNerdIcons) {
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return new Rune (
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_nerd.GetNerdIcon (
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fileSystemInfo,
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fileSystemInfo is IDirectoryInfo dir ? IsOpenGetter (dir) : false
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));
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}
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if (fileSystemInfo is IDirectoryInfo) {
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return UseUnicodeCharacters ? ConfigurationManager.Glyphs.Folder : new Rune (Path.DirectorySeparatorChar);
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}
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return UseUnicodeCharacters ? ConfigurationManager.Glyphs.File : new Rune (' ');
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}
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/// <summary>
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/// Returns <see cref="GetIcon(IFileSystemInfo)"/> with an extra
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/// space on the end if icon is likely to overlap adjacent cells.
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/// </summary>
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public string GetIconWithOptionalSpace(IFileSystemInfo fileSystemInfo)
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{
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var space = UseNerdIcons ? " " : "";
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return GetIcon(fileSystemInfo) + space;
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}
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}
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} |