replace.cs

c#精彩编程百例（源代码）

//  Replace.cs 
//  Copyright (c) 2000 Mike Krueger
//
//  This program is free software; you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation; either version 2 of the License, or
//  (at your option) any later version.
//
//  This program is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.
//
//  You should have received a copy of the GNU General Public License
//  along with this program; if not, write to the Free Software
//  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

using System.Drawing;
using System.ComponentModel;
using System.Windows.Forms;

using SharpDevelop.Internal.Project;
using SharpDevelop.Gui.Edit.Text;

namespace SharpDevelop.Internal.Text.Search {
	
	public class Replace : Find
	{
		Find    find;
		string  replacewith;
		
		public Replace(Find find, string replacewith)
		{
			this.find         = find;
			this.replacewith  = replacewith;
		}
		
		public void ReplaceMatching()
		{
			if (!find.SelectionEqualsPattern()) {
				return;
			}
			TextAreaControl area = Main.ActiveContentWindow.TextArea;
			area.Buffer.BeginUpdate();
			if (area.Selection.HasSomethingSelected) {
				area.Buffer.Delete(area.Selection.SelectionStart, area.Selection.SelectionEnd);
				area.Buffer.Insert(area.Selection.SelectionStart, replacewith);
				area.Buffer.UndoStack.UndoLast(2);
				int y = area.Selection.SelectionStart.Y;
				area.Selection.SetNoSelection();
//				area.UpdateLines(y, y);
			}
			area.Buffer.EndUpdate();
		}
		
		public override bool FindNext()
		{
			return find.FindNext();
		}
	}
}