mirror of
https://github.com/gui-cs/Terminal.Gui.git
synced 2026-01-01 16:59:35 +01:00
Merge branch 'main' into toplevel-improvement
This commit is contained in:
BDisp
@@ -1333,17 +1333,46 @@ namespace Terminal.Gui {
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}
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}
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void ColorNormal ()
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/// <summary>
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/// Sets the driver to the default color for the control where no text is being rendered. Defaults to <see cref="ColorScheme.Normal"/>.
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/// </summary>
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protected virtual void ColorNormal ()
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{
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Driver.SetAttribute (ColorScheme.Normal);
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}
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void ColorSelection ()
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/// <summary>
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/// Sets the <see cref="View.Driver"/> to an appropriate color for rendering the given <paramref name="idx"/> of the
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/// current <paramref name="line"/>. Override to provide custom coloring by calling <see cref="ConsoleDriver.SetAttribute(Attribute)"/>
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/// Defaults to <see cref="ColorScheme.Normal"/>.
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/// </summary>
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/// <param name="line"></param>
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/// <param name="idx"></param>
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protected virtual void ColorNormal (List<Rune> line, int idx)
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{
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Driver.SetAttribute (ColorScheme.Normal);
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}
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/// <summary>
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/// Sets the <see cref="View.Driver"/> to an appropriate color for rendering the given <paramref name="idx"/> of the
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/// current <paramref name="line"/>. Override to provide custom coloring by calling <see cref="ConsoleDriver.SetAttribute(Attribute)"/>
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/// Defaults to <see cref="ColorScheme.Focus"/>.
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/// </summary>
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/// <param name="line"></param>
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/// <param name="idx"></param>
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protected virtual void ColorSelection (List<Rune> line, int idx)
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{
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Driver.SetAttribute (ColorScheme.Focus);
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}
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void ColorUsed ()
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/// <summary>
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/// Sets the <see cref="View.Driver"/> to an appropriate color for rendering the given <paramref name="idx"/> of the
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/// current <paramref name="line"/>. Override to provide custom coloring by calling <see cref="ConsoleDriver.SetAttribute(Attribute)"/>
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/// Defaults to <see cref="ColorScheme.HotFocus"/>.
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/// </summary>
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/// <param name="line"></param>
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/// <param name="idx"></param>
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protected virtual void ColorUsed (List<Rune> line, int idx)
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{
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Driver.SetAttribute (ColorScheme.HotFocus);
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}
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@@ -1667,12 +1696,12 @@ namespace Terminal.Gui {
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var rune = idxCol >= lineRuneCount ? ' ' : line [idxCol];
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var cols = Rune.ColumnWidth (rune);
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if (idxCol < line.Count && selecting && PointInSelection (idxCol, idxRow)) {
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ColorSelection ();
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ColorSelection (line, idxCol);
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} else if (idxCol == currentColumn && idxRow == currentRow && !selecting && !Used
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&& HasFocus && idxCol < lineRuneCount) {
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ColorUsed ();
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ColorUsed (line, idxCol);
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} else {
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ColorNormal ();
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ColorNormal (line,idxCol);
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}
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if (rune == '\t' && TabWidth > 0) {
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180
UICatalog/Scenarios/SyntaxHighlighting.cs
Normal file
180
UICatalog/Scenarios/SyntaxHighlighting.cs
Normal file
@@ -0,0 +1,180 @@
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Text;
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using System.Text.RegularExpressions;
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using System.Threading.Tasks;
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using Terminal.Gui;
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using static UICatalog.Scenario;
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using Attribute = Terminal.Gui.Attribute;
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namespace UICatalog.Scenarios {
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[ScenarioMetadata (Name: "Syntax Highlighting", Description: "Text editor with keyword highlighting")]
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[ScenarioCategory ("Controls")]
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class SyntaxHighlighting : Scenario {
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public override void Setup ()
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{
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Win.Title = this.GetName ();
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Win.Y = 1; // menu
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Win.Height = Dim.Fill (1); // status bar
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Top.LayoutSubviews ();
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var menu = new MenuBar (new MenuBarItem [] {
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new MenuBarItem ("_File", new MenuItem [] {
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new MenuItem ("_Quit", "", () => Quit()),
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})
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});
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Top.Add (menu);
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var textView = new SqlTextView () {
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X = 0,
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Y = 0,
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Width = Dim.Fill (),
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Height = Dim.Fill (1),
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};
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textView.Init();
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textView.Text = "SELECT TOP 100 * \nfrom\n MyDb.dbo.Biochemistry;";
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Win.Add (textView);
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var statusBar = new StatusBar (new StatusItem [] {
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new StatusItem(Key.CtrlMask | Key.Q, "~^Q~ Quit", () => Quit()),
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});
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Top.Add (statusBar);
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}
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private void Quit ()
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{
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Application.RequestStop ();
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}
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private class SqlTextView : TextView{
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private HashSet<string> keywords = new HashSet<string>(StringComparer.CurrentCultureIgnoreCase);
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private Attribute blue;
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private Attribute white;
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private Attribute magenta;
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public void Init()
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{
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keywords.Add("select");
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keywords.Add("distinct");
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keywords.Add("top");
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keywords.Add("from");
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keywords.Add ("create");
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keywords.Add ("primary");
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keywords.Add ("key");
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keywords.Add ("insert");
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keywords.Add ("alter");
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keywords.Add ("add");
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keywords.Add ("update");
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keywords.Add ("set");
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keywords.Add ("delete");
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keywords.Add ("truncate");
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keywords.Add ("as");
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keywords.Add ("order");
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keywords.Add ("by");
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keywords.Add ("asc");
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keywords.Add ("desc");
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keywords.Add ("between");
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keywords.Add ("where");
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keywords.Add ("and");
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keywords.Add ("or");
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keywords.Add ("not");
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keywords.Add ("limit");
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keywords.Add ("null");
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keywords.Add ("is");
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keywords.Add ("drop");
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keywords.Add ("database");
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keywords.Add ("column");
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keywords.Add ("table");
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keywords.Add ("having");
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keywords.Add ("in");
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keywords.Add ("join");
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keywords.Add ("on");
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keywords.Add ("union");
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keywords.Add ("exists");
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magenta = Driver.MakeAttribute (Color.Magenta, Color.Black);
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blue = Driver.MakeAttribute (Color.Cyan, Color.Black);
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white = Driver.MakeAttribute (Color.White, Color.Black);
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}
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protected override void ColorNormal ()
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{
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Driver.SetAttribute (white);
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}
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protected override void ColorNormal (List<System.Rune> line, int idx)
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{
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if(IsInStringLiteral(line,idx)) {
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Driver.SetAttribute (magenta);
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}
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else
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if(IsKeyword(line,idx))
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{
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Driver.SetAttribute (blue);
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}
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else{
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Driver.SetAttribute (white);
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}
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}
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private bool IsInStringLiteral (List<System.Rune> line, int idx)
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{
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string strLine = new string (line.Select (r => (char)r).ToArray ());
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foreach(Match m in Regex.Matches(strLine, "'[^']*'")) {
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if(idx >= m.Index && idx < m.Index+m.Length) {
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return true;
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}
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}
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return false;
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}
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private bool IsKeyword(List<System.Rune> line, int idx)
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{
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var word = IdxToWord(line,idx);
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if(string.IsNullOrWhiteSpace(word)){
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return false;
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}
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return keywords.Contains(word,StringComparer.CurrentCultureIgnoreCase);
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}
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private string IdxToWord(List<System.Rune> line, int idx)
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{
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var words = Regex.Split(
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new string(line.Select(r=>(char)r).ToArray()),
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"\\b");
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int count = 0;
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string current = null;
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foreach(var word in words)
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{
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current = word;
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count+= word.Length;
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if(count > idx){
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break;
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}
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}
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return current?.Trim();
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}
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}
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}
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}
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