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/*
KeePass Password Safe - The Open-Source Password Manager
Copyright (C) 2003-2019 Dominik Reichl <dominik.reichl@t-online.de>
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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Diagnostics;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using KeePass.App;
using KeePass.Resources;
using KeePass.UI;
using KeePass.Util;
using KeePassLib.Utility;
namespace KeePass.Forms
{
public partial class TextEncodingForm : Form
{
private string m_strContext = string.Empty;
private byte[] m_pbData = null;
private bool m_bInitializing = false;
private Encoding m_encSel = null;
private uint m_uStartOffset = 0;
public Encoding SelectedEncoding
{
get { return m_encSel; }
}
public uint DataStartOffset
{
get { return m_uStartOffset; }
}
public void InitEx(string strContext, byte[] pbData)
{
m_strContext = (strContext ?? string.Empty);
m_pbData = pbData;
}
public TextEncodingForm()
{
InitializeComponent();
Program.Translation.ApplyTo(this);
}
private void OnFormLoad(object sender, EventArgs e)
{
GlobalWindowManager.AddWindow(this);
m_bInitializing = true;
this.Icon = AppIcons.Default;
FontUtil.AssignDefaultBold(m_lblContext);
Debug.Assert(!m_lblContext.AutoSize); // For RTL support
m_lblContext.Text = m_strContext;
m_cmbEnc.Items.Add(KPRes.BinaryNoConv);
foreach(StrEncodingInfo sei in StrUtil.Encodings)
m_cmbEnc.Items.Add(sei.Name);
StrEncodingInfo seiGuess = BinaryDataClassifier.GetStringEncoding(
m_pbData, out m_uStartOffset);
int iSel = 0;
if(seiGuess != null)
iSel = Math.Max(m_cmbEnc.FindStringExact(seiGuess.Name), 0);
m_cmbEnc.SelectedIndex = iSel;
m_bInitializing = false;
UpdateTextPreview();
}
private void OnFormClosed(object sender, FormClosedEventArgs e)
{
GlobalWindowManager.RemoveWindow(this);
}
private Encoding GetSelEnc()
{
StrEncodingInfo sei = StrUtil.GetEncoding(m_cmbEnc.Text);
return ((sei != null) ? sei.Encoding : null);
}
private void UpdateTextPreview()
{
if(m_bInitializing) return;
m_rtbPreview.Clear(); // Clear formatting
try
{
Encoding enc = GetSelEnc();
if(enc == null) throw new InvalidOperationException();
string str = (enc.GetString(m_pbData, (int)m_uStartOffset,
m_pbData.Length - (int)m_uStartOffset) ?? string.Empty);
m_rtbPreview.Text = StrUtil.ReplaceNulls(str);
}
catch(Exception) { m_rtbPreview.Text = string.Empty; }
}
private void OnEncSelectedIndexChanged(object sender, EventArgs e)
{
UpdateTextPreview();
}
private void OnBtnOK(object sender, EventArgs e)
{
m_encSel = GetSelEnc();
}
private void OnBtnCancel(object sender, EventArgs e)
{
}
}
}
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