using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data; 
using System.Text; 
using System.Windows.Forms;
using ICSharpCode.TextEditor.Document;
using ICSharpCode.TextEditor;

namespace ICSharpCode.WinFormsUI.Controls
{
 [ToolboxItem(false)]
 public partial class CodeFormatControl : TextBoxBase
 {
 private bool onfoused = false;

 private string HighlightName = "";
 private string ThemeName = "Default";

 public CommandExecuteDelegate OnCommandExecute = null; 

 public override string Text
 {
 get
 {
 return this.textEditorControl1.Text;
 }
 set
 {
 this.textEditorControl1.Text = value;
 SetHighlightingFoldingStrategy(this.documentType);
 }
 }

 public CodeFormatControl()
 {
 InitializeComponent();
 InitializeControls();
 }

 public void SetTheme(string themeName)
 {
 ThemeName = themeName; 
 switch (themeName)
 {
 case "Default":
 toolStrip1.ForeColor = SystemColors.ControlText; 
 toolStrip1.BackColor = Color.FromArgb(246, 248, 250);
 panel1.BackColor = Color.FromArgb(246, 248, 250);
 EditorContainer.BackColor = Color.FromArgb(246, 248, 250);
 break;
 case "Black":
 toolStrip1.ForeColor = Color.FromArgb(240, 240, 240);
 toolStrip1.BackColor = Color.FromArgb(050, 050, 050);
 panel1.BackColor = Color.FromArgb(050, 050, 050);
 EditorContainer.BackColor = Color.FromArgb(045, 045, 045);
 break;
 }
 toolStrip1.SetTheme(themeName);
 textEditorControl1.SetHighlighting(ThemeName, HighlightName); 
 }

 private DocumentType _documentType = DocumentType.Text;
 public override DocumentType DocumentType
 {
 get {
 return _documentType;
 }
 set {
 _documentType = value;
 SetHighlightingFoldingStrategy(_documentType);
 OnCurrentLanguageChanged(_documentType);
 }
 }

 private bool _showLineNumber = true;
 public bool ShowLineNumber
 {
 get { return _showLineNumber; }
 set
 {
 _showLineNumber = value;
 textEditorControl1.ShowLineNumbers = _showLineNumber;
 }
 }

 public override void OnPropertyChanged()
 {
 base.OnPropertyChanged();
 this.toolStrip1.Visible = editModel;
 }

 protected void InitializeControls()
 { 
 textEditorControl1.LineViewerStyle = LineViewerStyle.None; 
 textEditorControl1.GotFocus += textEditorControl1_GotFocus;
 textEditorControl1.LostFocus += textEditorControl1_LostFocus;
 textEditorControl1.TextChanged+=textEditorControl1_TextChanged;
 toolStripComboBoxFontValue.SelectedIndex = 0;
 toolStripComboBoxFontSizeValue.SelectedIndex = 1;
 }

 protected void SetHighlightingFoldingStrategy(DocumentType value)
 { 
 switch (value)
 {
 case WinFormsUI.Controls.DocumentType.Text:
 HighlightName = "Text";
 textEditorControl1.SetHighlighting(ThemeName, "Text");
 textEditorControl1.Document.FormattingStrategy = new DefaultFormattingStrategy();
 textEditorControl1.Document.FoldingManager.FoldingStrategy = new TSQLFoldingStrategy(); //new IndentFoldingStrategy();
 textEditorControl1.Document.FoldingManager.UpdateFoldings();
 break;
 case WinFormsUI.Controls.DocumentType.TSql:
 HighlightName = "TSQL";
 textEditorControl1.SetHighlighting(ThemeName,"TSQL"); 
 textEditorControl1.Document.FormattingStrategy = new DefaultFormattingStrategy();
 textEditorControl1.Document.FoldingManager.FoldingStrategy = new TSQLFoldingStrategy(); //new IndentFoldingStrategy();
 textEditorControl1.Document.FoldingManager.UpdateFoldings();
 break;
 case WinFormsUI.Controls.DocumentType.Csharp:
 HighlightName = "C#";
 textEditorControl1.SetHighlighting(ThemeName, "C#");
 textEditorControl1.Document.FormattingStrategy = new CSharpFormattingStrategy();
 textEditorControl1.Document.FoldingManager.FoldingStrategy = new CSharpFoldingStrategy(); //new IndentFoldingStrategy();
 textEditorControl1.Document.FoldingManager.UpdateFoldings();
 break;
 case WinFormsUI.Controls.DocumentType.Javascript:
 HighlightName = "JavaScript";
 textEditorControl1.SetHighlighting(ThemeName, "JavaScript");
 textEditorControl1.Document.FormattingStrategy = new CSharpFormattingStrategy();
 textEditorControl1.Document.FoldingManager.FoldingStrategy = new CSharpFoldingStrategy(); //new IndentFoldingStrategy();
 textEditorControl1.Document.FoldingManager.UpdateFoldings();
 break;
 case WinFormsUI.Controls.DocumentType.Xml:
 HighlightName = "XML";
 textEditorControl1.SetHighlighting(ThemeName, "XML");
 textEditorControl1.Document.FormattingStrategy = new DefaultFormattingStrategy();
 textEditorControl1.Document.FoldingManager.FoldingStrategy = new XmlFoldingStrategy(); //new IndentFoldingStrategy();
 textEditorControl1.Document.FoldingManager.UpdateFoldings();
 break;
 case WinFormsUI.Controls.DocumentType.Python:
 HighlightName = "Python";
 textEditorControl1.SetHighlighting(ThemeName, "Python");
 textEditorControl1.Document.FormattingStrategy = new DefaultFormattingStrategy();
 textEditorControl1.Document.FoldingManager.FoldingStrategy = new IndentFoldingStrategy(); //new IndentFoldingStrategy();
 textEditorControl1.Document.FoldingManager.UpdateFoldings();
 break;
 case WinFormsUI.Controls.DocumentType.Word:
 HighlightName = "Text";
 textEditorControl1.SetHighlighting(ThemeName, "Text");
 textEditorControl1.Document.FormattingStrategy = new DefaultFormattingStrategy();
 textEditorControl1.Document.FoldingManager.FoldingStrategy = new IndentFoldingStrategy(); //new IndentFoldingStrategy();
 textEditorControl1.Document.FoldingManager.UpdateFoldings();
 break;
 case WinFormsUI.Controls.DocumentType.Json:
 HighlightName = "JavaScript";
 textEditorControl1.SetHighlighting(ThemeName, "JavaScript");
 textEditorControl1.Document.FormattingStrategy = new DefaultFormattingStrategy();
 textEditorControl1.Document.FoldingManager.FoldingStrategy = new IndentFoldingStrategy(); //new IndentFoldingStrategy();
 textEditorControl1.Document.FoldingManager.UpdateFoldings();
 break;
 }
 }

 protected void OnCurrentLanguageChanged(DocumentType documentType)
 {
 ToolStripItemCollection items = this.toolStripButtonLanguage.DropDownItems;
 foreach(ToolStripMenuItem item in items)
 {
 item.Checked = false;
 }

 switch (documentType)
 {
 case DocumentType.TSql:
 sqlToolStripMenuItem.Checked = true;
 break;
 case DocumentType.Csharp:
 csharpToolStripMenuItem.Checked = true;
 break;
 case DocumentType.Text:
 textToolStripMenuItem.Checked = true;
 break;
 case DocumentType.Javascript:
 javascriptToolStripMenuItem.Checked = true;
 break;
 }

 }

 protected void textEditorControl1_TextChanged(object sender, EventArgs e)
 {
 if (textEditorControl1.Document != null && textEditorControl1.Document.FoldingManager != null
 && textEditorControl1.Document.FoldingManager.FoldingStrategy != null)
 textEditorControl1.Document.FoldingManager.UpdateFoldings();
 }

 protected void textEditorControl1_GotFocus(object sender, EventArgs e)
 {
 onfoused = true;
 this.Invalidate();
 }

 protected void textEditorControl1_LostFocus(object sender, EventArgs e)
 {
 onfoused = false;
 this.Invalidate();
 }

 private void toolStripButtonLineNumber_Click(object sender, EventArgs e)
 {
 textEditorControl1.ShowLineNumbers = !textEditorControl1.ShowLineNumbers;
 }

 private void toolStripButtonAbout_Click(object sender, EventArgs e)
 {
 ShowAbout();
 }

 private void toolStripButtonAddComment_Click(object sender, EventArgs e)
 {
 TextAreaComment(1);
 }

 private void toolStripButtonRemoveComment_Click(object sender, EventArgs e)
 {
 TextAreaComment(-1);
 }

 private void toolStripComboBoxFontSizeValue_SelectedIndexChanged(object sender, EventArgs e)
 {
 var size = toolStripComboBoxFontSizeValue.SelectedItem + "";
 var font = toolStripComboBoxFontValue.SelectedItem + "";

 if (string.IsNullOrEmpty(size))
 {
 size = "12";
 }
 if (string.IsNullOrEmpty(font) || font == "默认")
 {
 font = "Courier New";
 }

 this.textEditorControl1.Font = new Font(font, float.Parse(size), FontStyle.Regular); 
 }

 private void toolStripComboBoxFontValue_SelectedIndexChanged(object sender, EventArgs e)
 {
 var size = toolStripComboBoxFontSizeValue.SelectedItem + "";
 var font = toolStripComboBoxFontValue.SelectedItem + "";

 if (string.IsNullOrEmpty(size))
 {
 size = "12";
 }
 if (string.IsNullOrEmpty(font) || font == "默认")
 {
 font = "Courier New";
 }

 this.textEditorControl1.Font = new Font(font, float.Parse(size), FontStyle.Regular); 
 }

 public override void ReleaseDispose()
 {
 base.ReleaseDispose();
 }

 public void hightStrategyChanged(object sender, EventArgs e)
 {
 string text = ((ToolStripItem)sender).Text;
 foreach (ToolStripMenuItem item in toolStripButtonLanguage.DropDownItems)
 {
 if (item.Text == text)
 {
 item.Checked = true;
 }
 else
 {
 item.Checked = false;
 }
 }

 //var _documentType = DocumentType.None;

 switch (text)
 {
 case "Sql":
 _documentType = DocumentType.TSql;
 break;
 case "Javascript":
 _documentType = DocumentType.Javascript;
 break;
 case "Json":
 _documentType = DocumentType.Javascript;
 break;
 case "Python":
 _documentType = DocumentType.Python;
 break;
 case "Html":
 _documentType = DocumentType.Html;
 break;
 case "Css":
 _documentType = DocumentType.Css;
 break; 
 case "C#":
 _documentType = DocumentType.Csharp;
 break;
 case "Text":
 _documentType = DocumentType.Text;
 break;
 }

 SetHighlightingFoldingStrategy(_documentType);

 }

 private void javascriptToolStripMenuItem_Click(object sender, EventArgs e)
 {
 hightStrategyChanged(sender, e);
 }

 private void pythonToolStripMenuItem_Click(object sender, EventArgs e)
 {
 hightStrategyChanged(sender, e);
 }

 private void cToolStripMenuItem_Click(object sender, EventArgs e)
 {
 hightStrategyChanged(sender, e);
 }

 private void cssToolStripMenuItem_Click(object sender, EventArgs e)
 {
 hightStrategyChanged(sender, e);
 }

 private void htmlToolStripMenuItem_Click(object sender, EventArgs e)
 {
 hightStrategyChanged(sender, e);
 }

 private void sqlToolStripMenuItem_Click(object sender, EventArgs e)
 {
 hightStrategyChanged(sender, e);
 } 

 private void jsonToolStripMenuItem_Click(object sender, EventArgs e)
 {
 hightStrategyChanged(sender, e);
 }
 
 private void textToolStripMenuItem_Click(object sender, EventArgs e)
 {
 hightStrategyChanged(sender, e);
 }

 private void toolStripButtonIndent_Click(object sender, EventArgs e)
 {
 var text = this.textEditorControl1.Text;

 TextAreaIndent(1);
 }

 private void toolStripButtonOutdent_Click(object sender, EventArgs e)
 {
 TextAreaIndent(-1);
 }

 private void toolStripButtonClear_Click(object sender, EventArgs e)
 {
 this.textEditorControl1.Text = "";
 textEditorControl1.ActiveTextAreaControl.TextArea.Invalidate();
 this.textEditorControl1.ActiveTextAreaControl.Invalidate();
 }

 private void toolStripButtonSave_Click(object sender, EventArgs e)
 {
 if (this.OnCommandExecute != null)
 OnCommandExecute(sender,new StripButtonEventArgs("toolStripButtonSave"));
 }

 private void TextAreaIndent(int indents)
 {
 int startOffset = -1, endOffset = -1; 
 var offset = textEditorControl1.ActiveTextAreaControl.Caret.Offset; 
 var list = textEditorControl1.ActiveTextAreaControl.SelectionManager.SelectionCollection;

 if (list.Count > 0)
 {
 foreach (var select in list)
 {
 var start = textEditorControl1.Document.GetLineNumberForOffset(select.Offset);
 var end = textEditorControl1.Document.GetLineNumberForOffset(select.EndOffset);
 for (int index = start; index < end + 1; index++)
 {
 var line = textEditorControl1.Document.GetLineSegment(index);

 if (line.Indent + indents >= 0 && line.Indent + indents < 100)
 {
 for (int i = 0; i < Math.Abs(indents); i++)
 {
 if (indents > 0)
 {
 textEditorControl1.Document.Insert(line.Offset, "\t");
 }
 else
 {
 textEditorControl1.Document.Remove(line.Offset, "\t".Length);
 }
 } 
 }

 if (line.Indent + indents >= 0 && line.Indent + indents < 100)
 line.Indent += indents; 

 }
 }

 startOffset = list[0].Offset;

 endOffset = list[list.Count - 1].EndOffset;

 var line3 = textEditorControl1.Document.GetLineSegmentForOffset(list[list.Count - 1].Offset);

 int d = indents;
 if (d <= 0) d += 1;

 textEditorControl1.ActiveTextAreaControl.Caret.Position = textEditorControl1.Document.OffsetToPosition(endOffset + d);

 textEditorControl1.ActiveTextAreaControl
 .SelectionManager.SetSelection(textEditorControl1.Document.OffsetToPosition(startOffset),
 textEditorControl1.Document.OffsetToPosition(endOffset + d)); 
 
 }
 else
 {
 var line2 = textEditorControl1.Document.GetLineSegmentForOffset(textEditorControl1.ActiveTextAreaControl.Caret.Offset);
 if (line2 != null)
 {
 if (line2.Indent + indents >= 0 && line2.Indent + indents < 100)
 {
 if (indents > 0)
 {
 textEditorControl1.Document.Insert(line2.Offset, "\t");
 textEditorControl1.ActiveTextAreaControl.Caret.Position = textEditorControl1.Document.OffsetToPosition(offset + "\t".Length);
 }
 else
 {
 textEditorControl1.Document.Remove(line2.Offset, "\t".Length);
 textEditorControl1.ActiveTextAreaControl.Caret.Position = textEditorControl1.Document.OffsetToPosition(offset - "\t".Length);
 }
 }

 if (line2.Indent + indents >= 0 && line2.Indent + indents < 100)
 line2.Indent += indents;
 }
 }
 
 textEditorControl1.ActiveTextAreaControl.TextArea.Invalidate();
 textEditorControl1.ActiveTextAreaControl.Invalidate();

 }

 private void TextAreaComment(int comments)
 {
 int startOffset = -1, endOffset = -1;
 var offset = textEditorControl1.ActiveTextAreaControl.Caret.Offset;
 var list = textEditorControl1.ActiveTextAreaControl.SelectionManager.SelectionCollection;

 if (list.Count > 0)
 {
 string note = "/**/";
 foreach (var select in list)
 {
 var start = textEditorControl1.Document.GetLineNumberForOffset(select.Offset);
 var end = textEditorControl1.Document.GetLineNumberForOffset(select.EndOffset);

 Caret textCaret = new Caret(textEditorControl1.ActiveTextAreaControl.TextArea);
 textCaret.Position = select.StartPosition;

 ///
 ///Get Not Empty Char Column
 ///
 int startPox = select.StartPosition.Column;
 for (int i = select.StartPosition.Column; i <= select.EndPosition.Column; i++)
 {
 textCaret.Position = new TextLocation(i, start);
 char chr = textEditorControl1.Document.GetCharAt(textCaret.Offset);
 if (chr != ' ')
 {
 startPox = i;
 break;
 }
 } 

 for (int index = start; index < end + 1; index++)
 {
 var line = textEditorControl1.Document.GetLineSegment(index);

 textCaret.Position = new TextLocation(textCaret.Column, line.LineNumber);

 if (line.Comment + comments >= 0 && line.Comment + comments < 100)
 {
 for (int i = 0; i < Math.Abs(comments); i++)
 {
 if (comments > 0)
 {
 textEditorControl1.Document.Insert(textCaret.Offset, "//");
 }
 else
 {
 textEditorControl1.Document.Remove(textCaret.Offset, "//".Length);
 }
 }
 }

 if (line.Comment + comments >= 0 && line.Comment + comments < 100)
 line.Comment += comments;

 }
 }

 startOffset = list[0].Offset;

 endOffset = list[list.Count - 1].EndOffset;

 var line3 = textEditorControl1.Document.GetLineSegmentForOffset(list[list.Count - 1].Offset);

 int d = 2 * comments;
 if (d <= 0) d += 2 * (-comments);

 textEditorControl1.ActiveTextAreaControl.Caret.Position = textEditorControl1.Document.OffsetToPosition(endOffset + d);

 textEditorControl1.ActiveTextAreaControl
 .SelectionManager.SetSelection(textEditorControl1.Document.OffsetToPosition(startOffset),
 textEditorControl1.Document.OffsetToPosition(endOffset + d));

 }
 else
 {
 string note = "//";
 var line2 = textEditorControl1.Document.GetLineSegmentForOffset(textEditorControl1.ActiveTextAreaControl.Caret.Offset);
 if (line2 != null)
 {
 if (line2.Comment + comments >= 0 && line2.Comment + comments < 100)
 {
 if (comments > 0)
 {
 textEditorControl1.Document.Insert(offset, "//");
 textEditorControl1.ActiveTextAreaControl.Caret.Position = textEditorControl1.Document.OffsetToPosition(offset + "//".Length);
 }
 else
 {
 textEditorControl1.Document.Remove(offset - "//".Length, "//".Length);
 textEditorControl1.ActiveTextAreaControl.Caret.Position = textEditorControl1.Document.OffsetToPosition(offset - "//".Length);
 }
 }

 if (line2.Comment + comments >= 0 && line2.Comment + comments < 100)
 line2.Comment += comments;
 }
 }

 textEditorControl1.ActiveTextAreaControl.TextArea.Invalidate();
 textEditorControl1.ActiveTextAreaControl.Invalidate();
 }

 
 }

 public class StripButtonEventArgs : EventArgs
 {
 public string name { get; set; }
 public StripButtonEventArgs(string name)
 {
 this.name = name;
 }
 }

 public delegate void CommandExecuteDelegate(object sender, StripButtonEventArgs e);
}