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// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
// This code is distributed under the GNU LGPL (for details please see \doc\license.txt)

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using
generated by cgit v1.3.1 (git 2.54.0) at 2026-07-26 02:20:21 +0000
n class="p">; namespace Tango.Scripting.Editors.Highlighting { /// <summary> /// Takes a series of highlighting commands and stores them. /// Later, it can build inline objects (for use with WPF TextBlock) from the commands. /// </summary> /// <remarks> /// This class is not used in AvalonEdit - but it is useful for someone who wants to put a HighlightedLine /// into a TextBlock. /// In SharpDevelop, we use it to provide syntax highlighting inside the search results pad. /// </remarks> public sealed class HighlightedInlineBuilder { sealed class HighlightingState { internal Brush Foreground; internal Brush Background; internal FontFamily Family; internal FontWeight? Weight; internal FontStyle? Style; public HighlightingState Clone() { return new HighlightingState { Foreground = this.Foreground, Background = this.Background, Family = this.Family, Weight = this.Weight, Style = this.Style }; } } readonly string text; List<int> stateChangeOffsets = new List<int>(); List<HighlightingState> stateChanges = new List<HighlightingState>(); int GetIndexForOffset(int offset) { if (offset < 0 || offset > text.Length) throw new ArgumentOutOfRangeException("offset"); int index = stateChangeOffsets.BinarySearch(offset); if (index < 0) { index = ~index; if (offset < text.Length) { stateChanges.Insert(index, stateChanges[index - 1].Clone()); stateChangeOffsets.Insert(index, offset); } } return index; } /// <summary> /// Creates a new HighlightedInlineBuilder instance. /// </summary> public HighlightedInlineBuilder(string text) { if (text == null) throw new ArgumentNullException("text"); this.text = text; stateChangeOffsets.Add(0); stateChanges.Add(new HighlightingState()); } HighlightedInlineBuilder(string text, int[] offsets, HighlightingState[] states) { this.text = text; stateChangeOffsets.AddRange(offsets); stateChanges.AddRange(states); } /// <summary> /// Gets the text. /// </summary> public string Text { get { return text; } } /// <summary> /// Applies the properties from the HighlightingColor to the specified text segment. /// </summary> public void SetHighlighting(int offset, int length, HighlightingColor color) { if (color == null) throw new ArgumentNullException("color"); if (color.Foreground == null && color.FontStyle == null && color.FontWeight == null) { // Optimization: don't split the HighlightingState when we're not changing // any property. For example, the "Punctuation" color in C# is // empty by default. return; } int startIndex = GetIndexForOffset(offset); int endIndex = GetIndexForOffset(offset + length); for (int i = startIndex; i < endIndex; i++) { HighlightingState state = stateChanges[i]; if (color.Foreground != null) state.Foreground = color.Foreground.GetBrush(null); if (color.Background != null) state.Background = color.Background.GetBrush(null); if (color.FontStyle != null) state.Style = color.FontStyle; if (color.FontWeight != null) state.Weight = color.FontWeight; } } /// <summary> /// Sets the foreground brush on the specified text segment. /// </summary> public void SetForeground(int offset, int length, Brush brush) { int startIndex = GetIndexForOffset(offset); int endIndex = GetIndexForOffset(offset + length); for (int i = startIndex; i < endIndex; i++) { stateChanges[i].Foreground = brush; } } /// <summary> /// Sets the background brush on the specified text segment. /// </summary> public void SetBackground(int offset, int length, Brush brush) { int startIndex = GetIndexForOffset(offset); int endIndex = GetIndexForOffset(offset + length); for (int i = startIndex; i < endIndex; i++) { stateChanges[i].Background = brush; } } /// <summary> /// Sets the font weight on the specified text segment. /// </summary> public void SetFontWeight(int offset, int length, FontWeight weight) { int startIndex = GetIndexForOffset(offset); int endIndex = GetIndexForOffset(offset + length); for (int i = startIndex; i < endIndex; i++) { stateChanges[i].Weight = weight; } } /// <summary> /// Sets the font style on the specified text segment. /// </summary> public void SetFontStyle(int offset, int length, FontStyle style) { int startIndex = GetIndexForOffset(offset); int endIndex = GetIndexForOffset(offset + length); for (int i = startIndex; i < endIndex; i++) { stateChanges[i].Style = style; } } /// <summary> /// Sets the font family on the specified text segment. /// </summary> public void SetFontFamily(int offset, int length, FontFamily family) { int startIndex = GetIndexForOffset(offset); int endIndex = GetIndexForOffset(offset + length); for (int i = startIndex; i < endIndex; i++) { stateChanges[i].Family = family; } } /// <summary> /// Creates WPF Run instances that can be used for TextBlock.Inlines. /// </summary> public Run[] CreateRuns() { Run[] runs = new Run[stateChanges.Count]; for (int i = 0; i < runs.Length; i++) { int startOffset = stateChangeOffsets[i]; int endOffset = i + 1 < stateChangeOffsets.Count ? stateChangeOffsets[i + 1] : text.Length; Run r = new Run(text.Substring(startOffset, endOffset - startOffset)); HighlightingState state = stateChanges[i]; if (state.Foreground != null) r.Foreground = state.Foreground; if (state.Background != null) r.Background = state.Background; if (state.Weight != null) r.FontWeight = state.Weight.Value; if (state.Family != null) r.FontFamily = state.Family; if (state.Style != null) r.FontStyle = state.Style.Value; runs[i] = r; } return runs; } /// <summary> /// Clones this HighlightedInlineBuilder. /// </summary> public HighlightedInlineBuilder Clone() { return new HighlightedInlineBuilder(this.text, stateChangeOffsets.ToArray(), stateChanges.Select(sc => sc.Clone()).ToArray()); } } }