Add PreviewTextWrapMode

src/PowerShellRun/Application/InternalEntry.cs

@@ -31,8 +31,10 @@ internal class InternalEntry
     public BackgroundRunspace.Task? PreviewTask { get; set; } = null;
     private int _previewTaskExecutionCount = 0;
     private string[]? _previewLines = null;
-    private readonly object? _previewLinesLock = null;
+    private readonly object? _previewTaskLock = null;
     private bool _previewLinesUpdatedByTask = false;
+    private TextBox.WrappedText? _previewWrappedTextCache = null;
+    private int _previewWrappedTextCacheWidth = 0;
 
     public InternalEntry(SelectorEntry selectorEntry)
     {
@@ -71,7 +73,7 @@ public InternalEntry(SelectorEntry selectorEntry)
 
         if (selectorEntry.PreviewAsyncScript is not null)
         {
-            _previewLinesLock = new object();
+            _previewTaskLock = new object();
         }
     }
 
@@ -89,10 +91,10 @@ public ActionKey[] GetActionKeysMultiSelection()
 
     public void CompletePreviewTask(System.Collections.ObjectModel.Collection<PSObject> taskResult)
     {
-        if (_previewLinesLock is null)
+        if (_previewTaskLock is null)
             return;
 
-        lock (_previewLinesLock)
+        lock (_previewTaskLock)
         {
             if (taskResult.Count > 0 && taskResult[0] is not null)
             {
@@ -106,22 +108,39 @@ public void CompletePreviewTask(System.Collections.ObjectModel.Collection<PSObje
 
     public string[]? GetPreviewLines()
     {
-        if (_previewLinesLock is null)
+        if (_previewTaskLock is null)
             return _previewLines;
 
-        lock (_previewLinesLock)
+        lock (_previewTaskLock)
         {
             return _previewLines;
         }
     }
 
+    public TextBox.WrappedText? GetPreviewWrappedText(int maxWidth)
+    {
+        var previewLines = GetPreviewLines();
+        if (previewLines == null)
+            return null;
+
+        if (_previewWrappedTextCache is not null && _previewWrappedTextCacheWidth == maxWidth)
+        {
+            return _previewWrappedTextCache;
+        }
+
+        _previewWrappedTextCache = new TextBox.WrappedText(previewLines, maxWidth);
+        _previewWrappedTextCacheWidth = maxWidth;
+
+        return _previewWrappedTextCache;
+    }
+
     public void UpdatePreviewTask()
     {
         IsUpdated = false;
-        if (_previewLinesLock is null)
+        if (_previewTaskLock is null)
             return;
 
-        lock (_previewLinesLock)
+        lock (_previewTaskLock)
         {
             if (PreviewTask is null && _previewTaskExecutionCount == 0)
             {

src/PowerShellRun/Application/ResultWindow.cs

@@ -541,13 +541,28 @@ private void BuildUi()
             {
                 if (theme.PreviewEnable)
                 {
-                    var previewLines = internalEntry.GetPreviewLines();
+                    string[]? previewLines = null;
+                    int previewInitialVerticalScroll = 0;
+                    if (theme.PreviewTextWrapMode != TextWrapMode.None)
+                    {
+                        var wrappedPreview = internalEntry.GetPreviewWrappedText(_previewBox.GetInnerLayout().Width);
+                        if (wrappedPreview is not null)
+                        {
+                            previewLines = wrappedPreview.Lines;
+                            previewInitialVerticalScroll = wrappedPreview.GetStartLineIndex(selectorEntry.PreviewInitialVerticalScroll);
+                        }
+                    }
+                    else
+                    {
+                        previewLines = internalEntry.GetPreviewLines();
+                        previewInitialVerticalScroll = selectorEntry.PreviewInitialVerticalScroll;
+                    }
                     int previewLineCount = (previewLines is not null) ? previewLines.Length : 0;
 
                     if (IsFocusedEntryUpdated() || _isFocusedEntryContentUpdated)
                     {
                         _previewBox.ClearAndSetVerticalScroll(
-                            selectorEntry.PreviewInitialVerticalScroll,
+                            previewInitialVerticalScroll,
                             previewLineCount);
                     }
                     else

src/PowerShellRun/Application/Theme.cs

@@ -88,6 +88,7 @@ public class Theme
     public FontColor? EntryScrollBarBackgroundColor { get; set; } = null;
 
     public bool PreviewEnable { get; set; } = true;
+    public TextWrapMode PreviewTextWrapMode { get; set; } = TextWrapMode.None;
     public FontColor? PreviewForegroundColor { get; set; } = null;
     public FontColor? PreviewBackgroundColor { get; set; } = null;
     public FontStyle PreviewStyle { get; set; } = FontStyle.Default;

src/PowerShellRun/UI/Canvas.cs

@@ -303,6 +303,8 @@ public void Write()
                     shouldSetEscapeSequence = true;
                 }
 
+                // Low priority escape sequence is applied here before color and style settings.
+                // e.g. Escape sequences for highlighted characters. The highlight color setting is stronger.
                 if (escapeSequence is not null && shouldSetEscapeSequence && escapeSequenceLowPriority)
                 {
                     builder.Append(escapeSequence);
@@ -337,6 +339,8 @@ public void Write()
                     builder.Append(FontStyleTable.GetEscapeCode(cell.FontStyle));
                 }
 
+                // Normal priority escape sequence is applied here after color and style settings.
+                // It is higher priority than color and style settings.
                 if (escapeSequence is not null && shouldSetEscapeSequence && !escapeSequenceLowPriority)
                 {
                     builder.Append(escapeSequence);