searchform.cs

C#实现DHTML编辑器功能!

// DINAMIC XML Editor
//
// Copyright (c) 2002-2003 Dusan Hlavaty
// mailto: [e-mail]
//
// This software is licensed under the terms of
// GNU General Public license
//
using System;
using System.Windows.Forms;

namespace XML_editor.MyForms
{
	/// <summary>
	/// Zobrazuje formular, v ktorom sa da vyhladavat
	/// </summary>
	public class SearchForm : System.Windows.Forms.Form
	{
		private System.Windows.Forms.Label label1;
		private System.Windows.Forms.TextBox textBoxFind;
		private System.Windows.Forms.Button buttonFind;
		private System.Windows.Forms.Button buttonClose;
		
		
		private System.Windows.Forms.GroupBox groupBox2;
		private System.Windows.Forms.CheckBox checkCaseSensitive;
		
		private System.Windows.Forms.CheckBox checkSearchUp;
		private System.Windows.Forms.GroupBox groupBox3;
		private System.Windows.Forms.RadioButton radioFromCursor;
		private System.Windows.Forms.RadioButton radioFromTop;
		/// <summary>
		/// Required designer variable.
		/// </summary>
		private System.ComponentModel.Container components = null;

		/// <summary>
		/// odkaz na hlavny formular aplikacie
		/// </summary>
		private MainForm mainForm = null;

		// -------------------------------------------------------------------------
		/// <summary>
		/// odkaz na hlavny formular aplikacie
		/// </summary>
		public MainForm MainForm
		{
			get 
			{
				return this.mainForm;
			}
		}

		// -------------------------------------------------------------------------
		/// <summary>
		/// Inicializuje instanciu <see cref="SearchForm"/>
		/// </summary>
		public SearchForm(MainForm mainForm)
		{
			this.mainForm = mainForm;
			this.MyInitializeComponent();
		}

		// -------------------------------------------------------------------------
		/// <summary>
		/// Clean up any resources being used.
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if(components != null)
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		// -------------------------------------------------------------------------
		/// <summary>
		/// Moj Designer support
		/// </summary>
		private void MyInitializeComponent()
		{
			this.label1 = new System.Windows.Forms.Label();
			this.buttonFind = new System.Windows.Forms.Button();
			this.buttonClose = new System.Windows.Forms.Button();
			this.textBoxFind = new System.Windows.Forms.TextBox();
			this.groupBox2 = new System.Windows.Forms.GroupBox();
			this.checkCaseSensitive = new System.Windows.Forms.CheckBox();
			this.checkSearchUp = new System.Windows.Forms.CheckBox();
			this.groupBox3 = new System.Windows.Forms.GroupBox();
			this.radioFromCursor = new System.Windows.Forms.RadioButton();
			this.radioFromTop = new System.Windows.Forms.RadioButton();
			this.groupBox2.SuspendLayout();
			this.groupBox3.SuspendLayout();
			this.SuspendLayout();
			// 
			// label1
			// 
			this.label1.AutoSize = true;
			this.label1.CausesValidation = false;
			this.label1.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
			this.label1.Location = new System.Drawing.Point(16, 20);
			this.label1.Name = "label1";
			this.label1.Size = new System.Drawing.Size(56, 13);
			this.label1.TabIndex = 4;
			this.label1.Text = "Find what:";
			this.label1.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
			// 
			// buttonFind
			// 
			this.buttonFind.CausesValidation = false;
			this.buttonFind.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
			this.buttonFind.Location = new System.Drawing.Point(72, 144);
			this.buttonFind.Name = "buttonFind";
			this.buttonFind.TabIndex = 1;
			this.buttonFind.Text = "Find";
			this.buttonFind.Click += new System.EventHandler(this.Clicked_buttonFind);
			// 
			// buttonClose
			// 
			this.buttonClose.CausesValidation = false;
			this.buttonClose.DialogResult = System.Windows.Forms.DialogResult.Cancel;
			this.buttonClose.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
			this.buttonClose.Location = new System.Drawing.Point(160, 144);
			this.buttonClose.Name = "buttonClose";
			this.buttonClose.TabIndex = 2;
			this.buttonClose.Text = "Close";
			this.buttonClose.Click += new System.EventHandler(this.Clicked_buttonClose);

			// 
			// textBoxFind
			// 
			this.textBoxFind.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
			this.textBoxFind.Location = new System.Drawing.Point(72, 16);
			this.textBoxFind.Name = "textBoxFind";
			this.textBoxFind.Size = new System.Drawing.Size(224, 20);
			this.textBoxFind.TabIndex = 0;
			this.textBoxFind.Text = "";
			// 
			// groupBox2
			// 
			this.groupBox2.Controls.AddRange(new System.Windows.Forms.Control[] {
																																						this.checkSearchUp,
																																						this.checkCaseSensitive});
			this.groupBox2.Location = new System.Drawing.Point(160, 56);
			this.groupBox2.Name = "groupBox2";
			this.groupBox2.Size = new System.Drawing.Size(136, 80);
			this.groupBox2.TabIndex = 5;
			this.groupBox2.TabStop = false;
			this.groupBox2.Text = "Options";
			// 
			// checkCaseSensitive
			// 
			this.checkCaseSensitive.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
			this.checkCaseSensitive.Location = new System.Drawing.Point(16, 24);
			this.checkCaseSensitive.Name = "checkCaseSensitive";
			this.checkCaseSensitive.TabIndex = 7;
			this.checkCaseSensitive.Text = "Case &sensitive";
			// 
			// checkSearchUp
			// 
			this.checkSearchUp.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
			this.checkSearchUp.Location = new System.Drawing.Point(16, 48);
			this.checkSearchUp.Name = "checkSearchUp";
			this.checkSearchUp.TabIndex = 8;
			this.checkSearchUp.Text = "S&earch up";
			// 
			// groupBox3
			// 
			this.groupBox3.Controls.AddRange(new System.Windows.Forms.Control[] {
																																						this.radioFromCursor,
																																						this.radioFromTop});
			this.groupBox3.Location = new System.Drawing.Point(16, 56);
			this.groupBox3.Name = "groupBox3";
			this.groupBox3.Size = new System.Drawing.Size(136, 80);
			this.groupBox3.TabIndex = 3;
			this.groupBox3.TabStop = false;
			this.groupBox3.Text = "Origin";
			// 
			// radioFromCursor
			// 
			this.radioFromCursor.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
			this.radioFromCursor.Location = new System.Drawing.Point(16, 24);
			this.radioFromCursor.Name = "radioFromCursor";
			this.radioFromCursor.TabIndex = 3;
			this.radioFromCursor.Text = "From &cursor";
			// 
			// radioFromTop
			// 
			this.radioFromTop.Checked = true;
			this.radioFromTop.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
			this.radioFromTop.Location = new System.Drawing.Point(16, 48);
			this.radioFromTop.Name = "radioFromTop";
			this.radioFromTop.TabIndex = 4;
			this.radioFromTop.TabStop = true;
			this.radioFromTop.Text = "From the &top";
			// 
			// SearchForm
			// 
			this.AcceptButton = this.buttonFind;
			this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
			this.CancelButton = this.buttonClose;
			this.ClientSize = new System.Drawing.Size(306, 175);
			this.Controls.AddRange(new System.Windows.Forms.Control[] {
																																	this.groupBox3,
																																	this.groupBox2,
																																	this.textBoxFind,
																																	this.buttonClose,
																																	this.buttonFind,
																																	this.label1});
			this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
			this.MaximizeBox = false;
			this.MinimizeBox = false;
			this.ControlBox = false;
			this.Name = "SearchForm";
			this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
			this.Text = "Find Text";
			this.groupBox2.ResumeLayout(false);
			this.groupBox3.ResumeLayout(false);
			this.ResumeLayout(false);

		}


		// -------------------------------------------------------------------------
		/// <summary>
		/// Stlacenie tlacidla CLOSE
		/// </summary>
		/// <param name="sender"></param>
		/// <param name="e"></param>
		private void Clicked_buttonClose(object sender, System.EventArgs e)
		{
			this.Hide();
		}

		// -------------------------------------------------------------------------
		/// <summary>
		/// Stlacenie tlacidla FIND
		/// </summary>
		/// <param name="sender"></param>
		/// <param name="e"></param>
		public void Clicked_buttonFind(object sender, System.EventArgs e)
		{
			int searchFrom;

			if (this.MainForm.ActualTextAreaControl == null) 
			{
				return;
			}

			if (this.checkSearchUp.Checked == true) 
			{
				searchFrom = this.MainForm.ActualTextAreaControl.Document.TextLength - 1;
			} 
			else 
			{
				searchFrom = 0;	
			}

			if (this.radioFromCursor.Checked == true) 
			{
				searchFrom = this.MainForm.ActualTextAreaControl.Document.Caret.Offset;
			}

			this.Find(searchFrom, this.checkSearchUp.Checked, this.textBoxFind.Text, this.checkCaseSensitive.Checked);
			this.radioFromCursor.Checked = true;
			this.radioFromTop.Checked = false;
			
			this.Hide();
		}

		// -------------------------------------------------------------------------
		/// <summary>
		/// Najde zadany retazec v dokumente.
		/// </summary>
		/// <param name="startHere">na tomto offsete zacni hladat</param>
		/// <param name="searchUp"><c>true</c> = hladame smerom dolu, inac <c>false</c></param>
		/// <param name="findThis">tento retazec hladaj</param>
		/// <param name="caseSensitive"><c>true</c> = case sensitive</param>
		private void Find(int startHere, bool searchUp, string findThis, bool caseSensitive)
		{
			int position = -1;
			
			if (searchUp == false) 
			{
				position = DLTextEditor.Document.TextUtilities.FindNextString(this.MainForm.ActualTextAreaControl.Document, startHere+1, this.textBoxFind.Text, this.checkCaseSensitive.Checked);
				if (position < 0)
				{
					MessageBox.Show("Search string '" + findThis + "' not found.", "Information", MessageBoxButtons.OK, MessageBoxIcon.Information);
					return;
				}
				
			} 
			else 
			{
				position = DLTextEditor.Document.TextUtilities.FindPreviousString(this.MainForm.ActualTextAreaControl.Document, startHere-1, this.textBoxFind.Text, this.checkCaseSensitive.Checked);
				if (position < 0)
				{
					MessageBox.Show("Search string '" + findThis + "' not found.", "Information", MessageBoxButtons.OK, MessageBoxIcon.Information);
					return;
				}
			}

			this.MainForm.ActualTextAreaControl.JumpTo(position);
			DLTextEditor.Document.SelectionManager.DefaultSelection s = new DLTextEditor.Document.SelectionManager.DefaultSelection(this.MainForm.ActualTextAreaControl.Document, position, findThis.Length);
			this.MainForm.ActualTextAreaControl.Document.ClearSelection();
			this.MainForm.ActualTextAreaControl.Document.SetSelection(s);
			this.MainForm.ActualTextAreaControl.Focus();
		}

	} // public class SearchForm : ...
} // namespace XML_editor.MyForms