NEU

FastColoredTextBox/AutocompleteItem.cs

@@ -0,0 +1,266 @@
+using System;
+using System.Drawing;
+using System.Drawing.Printing;
+
+namespace FastColoredTextBoxNS
+{
+    /// <summary>
+    /// Item of autocomplete menu
+    /// </summary>
+    public class AutocompleteItem
+    {
+        public string Text;
+        public int ImageIndex = -1;
+        public object Tag;
+        string toolTipTitle;
+        string toolTipText;
+        string menuText;
+        public AutocompleteMenu Parent { get; internal set; }
+        
+
+        public AutocompleteItem()
+        {
+        }
+
+        public AutocompleteItem(string text)
+        {
+            Text = text;
+        }
+
+        public AutocompleteItem(string text, int imageIndex)
+            : this(text)
+        {
+            this.ImageIndex = imageIndex;
+        }
+
+        public AutocompleteItem(string text, int imageIndex, string menuText)
+            : this(text, imageIndex)
+        {
+            this.menuText = menuText;
+        }
+
+        public AutocompleteItem(string text, int imageIndex, string menuText, string toolTipTitle, string toolTipText)
+            : this(text, imageIndex, menuText)
+        {
+            this.toolTipTitle = toolTipTitle;
+            this.toolTipText = toolTipText;
+        }
+
+        /// <summary>
+        /// Returns text for inserting into Textbox
+        /// </summary>
+        public virtual string GetTextForReplace()
+        {
+            return Text;
+        }
+
+        /// <summary>
+        /// Compares fragment text with this item
+        /// </summary>
+        public virtual CompareResult Compare(string fragmentText)
+        {
+            if (Text.StartsWith(fragmentText, StringComparison.InvariantCultureIgnoreCase) &&
+                   Text != fragmentText)
+                return CompareResult.VisibleAndSelected;
+
+            return CompareResult.Hidden;
+        }
+
+        /// <summary>
+        /// Returns text for display into popup menu
+        /// </summary>
+        public override string ToString()
+        {
+            return menuText ?? Text;
+        }
+
+        /// <summary>
+        /// This method is called after item inserted into text
+        /// </summary>
+        public virtual void OnSelected(AutocompleteMenu popupMenu, SelectedEventArgs e)
+        {
+            ;
+        }
+
+        /// <summary>
+        /// Title for tooltip.
+        /// </summary>
+        /// <remarks>Return null for disable tooltip for this item</remarks>
+        public virtual string ToolTipTitle
+        {
+            get { return toolTipTitle; }
+            set { toolTipTitle = value; }
+        }
+
+        /// <summary>
+        /// Tooltip text.
+        /// </summary>
+        /// <remarks>For display tooltip text, ToolTipTitle must be not null</remarks>
+        public virtual string ToolTipText 
+        {
+            get{ return toolTipText; }
+            set { toolTipText = value; }
+        }
+
+        /// <summary>
+        /// Menu text. This text is displayed in the drop-down menu.
+        /// </summary>
+        public virtual string MenuText
+        {
+            get { return menuText; }
+            set { menuText = value; }
+        }
+
+        /// <summary>
+        /// Fore color of text of item
+        /// </summary>
+        public virtual Color ForeColor
+        {
+            get { return Color.Transparent; }
+            set { throw new NotImplementedException("Override this property to change color"); }
+        }
+
+        /// <summary>
+        /// Back color of item
+        /// </summary>
+        public virtual Color BackColor
+        {
+            get { return Color.Transparent; }
+            set { throw new NotImplementedException("Override this property to change color"); }
+        }
+    }
+
+    public enum CompareResult
+    {
+        /// <summary>
+        /// Item do not appears
+        /// </summary>
+        Hidden,
+        /// <summary>
+        /// Item appears
+        /// </summary>
+        Visible,
+        /// <summary>
+        /// Item appears and will selected
+        /// </summary>
+        VisibleAndSelected
+    }
+
+    /// <summary>
+    /// Autocomplete item for code snippets
+    /// </summary>
+    /// <remarks>Snippet can contain special char ^ for caret position.</remarks>
+    public class SnippetAutocompleteItem : AutocompleteItem
+    {
+        public SnippetAutocompleteItem(string snippet)
+        {
+            Text = snippet.Replace("\r", "");
+            ToolTipTitle = "Code snippet:";
+            ToolTipText = Text;
+        }
+
+        public override string ToString()
+        {
+            return MenuText ?? Text.Replace("\n", " ").Replace("^", "");
+        }
+
+        public override string GetTextForReplace()
+        {
+            return Text;
+        }
+
+        public override void OnSelected(AutocompleteMenu popupMenu, SelectedEventArgs e)
+        {
+            e.Tb.BeginUpdate();
+            e.Tb.Selection.BeginUpdate();
+            //remember places
+            var p1 = popupMenu.Fragment.Start;
+            var p2 = e.Tb.Selection.Start;
+            //do auto indent
+            if (e.Tb.AutoIndent)
+            {
+                for (int iLine = p1.iLine + 1; iLine <= p2.iLine; iLine++)
+                {
+                    e.Tb.Selection.Start = new Place(0, iLine);
+                    e.Tb.DoAutoIndent(iLine);
+                }
+            }
+            e.Tb.Selection.Start = p1;
+            //move caret position right and find char ^
+            while (e.Tb.Selection.CharBeforeStart != '^')
+                if (!e.Tb.Selection.GoRightThroughFolded())
+                    break;
+            //remove char ^
+            e.Tb.Selection.GoLeft(true);
+            e.Tb.InsertText("");
+            //
+            e.Tb.Selection.EndUpdate();
+            e.Tb.EndUpdate();
+        }
+
+        /// <summary>
+        /// Compares fragment text with this item
+        /// </summary>
+        public override CompareResult Compare(string fragmentText)
+        {
+            if (Text.StartsWith(fragmentText, StringComparison.InvariantCultureIgnoreCase) &&
+                   Text != fragmentText)
+                return CompareResult.Visible;
+
+            return CompareResult.Hidden;
+        }
+    }
+
+    /// <summary>
+    /// This autocomplete item appears after dot
+    /// </summary>
+    public class MethodAutocompleteItem : AutocompleteItem
+    {
+        string firstPart;
+        string lowercaseText;
+
+        public MethodAutocompleteItem(string text)
+            : base(text)
+        {
+            lowercaseText = Text.ToLower();
+        }
+
+        public override CompareResult Compare(string fragmentText)
+        {
+            int i = fragmentText.LastIndexOf('.');
+            if (i < 0)
+                return CompareResult.Hidden;
+            string lastPart = fragmentText.Substring(i + 1);
+            firstPart = fragmentText.Substring(0, i);
+
+            if(lastPart=="") return CompareResult.Visible;
+            if(Text.StartsWith(lastPart, StringComparison.InvariantCultureIgnoreCase))
+                return CompareResult.VisibleAndSelected;
+            if(lowercaseText.Contains(lastPart.ToLower()))
+                return CompareResult.Visible;
+
+            return CompareResult.Hidden;
+        }
+
+        public override string GetTextForReplace()
+        {
+            return firstPart + "." + Text;
+        }
+    }
+
+    /// <summary>
+    /// This Item does not check correspondence to current text fragment.
+    /// SuggestItem is intended for dynamic menus.
+    /// </summary>
+    public class SuggestItem : AutocompleteItem
+    {
+        public SuggestItem(string text, int imageIndex):base(text, imageIndex)
+        {   
+        }
+
+        public override CompareResult Compare(string fragmentText)
+        {
+            return CompareResult.Visible;
+        }
+    }
+}