RecentOpen.cs


1:	// RecentOpen.cs
2:	// Copyright (C) 2001 Mike Krueger
3:	//
4:	// This program is free software; you can redistribute it and/or modify
5:	// it under the terms of the GNU General Public License as published by
6:	// the Free Software Foundation; either version 2 of the License, or
7:	// (at your option) any later version.
8:	//
9:	// This program is distributed in the hope that it will be useful,
10:	// but WITHOUT ANY WARRANTY; without even the implied warranty of
11:	// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12:	// GNU General Public License for more details.
13:	//
14:	// You should have received a copy of the GNU General Public License
15:	// along with this program; if not, write to the Free Software
16:	// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17:
18:	using System;
19:	using System.Xml;
20:	using System.Diagnostics;
21:	using System.Collections;
22:	using System.IO;
23:
24:	using Core.Properties;
25:
26:	namespace SharpDevelop.Gui {
27:
28:	/// <summary>
29:	/// This class handles the recent open files and the recent open project files of SharpDevelop
30:	/// it checks, if the files exists at every creation, and if not it doesn't list them in the
31:	/// recent files, and they'll not be saved during the next option save.
32:	/// </summary>
33:	public class RecentOpen : IXmlConvertable
34:	{
35:	/// <summary>
36:	/// This variable is the maximal length of lastfile/lastopen entries
37:	/// must be > 0
38:	/// </summary>
39:	int MAX_LENGTH = 10;
40:
41:	ArrayList lastfile = new ArrayList();
42:	ArrayList lastproject = new ArrayList();
43:
44:	public event EventHandler RecentFileChanged;
45:	public event EventHandler RecentProjectChanged;
46:
47:	public ArrayList RecentFile {
48:	get {
49:	Debug.Assert(lastfile != null, "RecentOpen : set string[] LastFile (value == null)");
50:	return lastfile;
51:	}
52:	}
53:
54:	public ArrayList RecentProject {
55:	get {
56:	Debug.Assert(lastproject != null, "RecentOpen : set string[] LastProject (value == null)");
57:	return lastproject;
58:	}
59:	}
60:
61:	void OnRecentFileChange()
62:	{
63:	if (RecentFileChanged != null) {
64:	RecentFileChanged(this, null);
65:	}
66:	}
67:
68:	void OnRecentProjectChange()
69:	{
70:	if (RecentProjectChanged != null) {
71:	RecentProjectChanged(this, null);
72:	}
73:	}
74:
75:	public RecentOpen()
76:	{
77:
78:	}
79:
80:	public RecentOpen(XmlElement element)
81:	{
82:	XmlNodeList nodes = element["FILES"].ChildNodes;
83:
84:	for (int i = 0; i < nodes.Count; ++i) {
85:	if (File.Exists(nodes[i].InnerText)) {
86:	lastfile.Add(nodes[i].InnerText);
87:	}
88:	}
89:
90:	nodes = element["PROJECTS"].ChildNodes;
91:
92:	for (int i = 0; i < nodes.Count; ++i) {
93:	if (File.Exists(nodes[i].InnerText)) {
94:	lastproject.Add(nodes[i].InnerText);
95:	}
96:	}
97:	}
98:
99:	public void AddLastFile(string name) // TODO : improve
100:	{
101:	for (int i = 0; i < lastfile.Count; ++i)
102:	if (lastfile[i].ToString() == name)
103:	lastfile.RemoveAt(i);
104:
105:	while (lastfile.Count >= MAX_LENGTH)
106:	lastfile.RemoveAt(lastfile.Count - 1);
107:
108:	if (lastfile.Count > 0)
109:	lastfile.Insert(0, name);
110:	else
111:	lastfile.Add(name);
112:
113:	OnRecentFileChange();
114:	}
115:
116:	public void AddLastProject(string name) // TODO : improve
117:	{
118:	for (int i = 0; i < lastproject.Count; ++i)
119:	if (lastproject[i].ToString() == name)
120:	lastproject.RemoveAt(i);
121:
122:	while (lastproject.Count >= MAX_LENGTH)
123:	lastproject.RemoveAt(lastproject.Count - 1);
124:
125:	if (lastproject.Count > 0)
126:	lastproject.Insert(0, name);
127:	else {
128:	lastproject.Add(name);
129:	}
130:	OnRecentProjectChange();
131:	}
132:
133:	public object FromXmlElement(XmlElement element)
134:	{
135:	return new RecentOpen(element);
136:	}
137:
138:	public XmlElement ToXmlElement(XmlDocument doc)
139:	{
140:	XmlElement recent = doc.CreateElement("RECENT");
141:
142:	XmlElement lastfiles = doc.CreateElement("FILES");
143:	foreach (string file in lastfile) {
144:	XmlElement element = doc.CreateElement("FILE");
145:	element.InnerText = file;
146:	lastfiles.AppendChild(element);
147:	}
148:
149:	XmlElement lastprojects = doc.CreateElement("PROJECTS");
150:	foreach (string project in lastproject) {
151:	XmlElement element = doc.CreateElement("PROJECT");
152:	element.InnerText = project;
153:	lastprojects.AppendChild(element);
154:	}
155:
156:	recent.AppendChild(lastfiles);
157:	recent.AppendChild(lastprojects);
158:
159:	return recent;
160:	}
161:	}
162:	}