CodeWalker/Forms/HexForm.cs

156 lines
4.2 KiB
C#
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2017-09-21 18:33:05 +08:00
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace CodeWalker.Forms
{
public partial class HexForm : Form
{
private byte[] data;
public byte[] Data
{
get { return data; }
set
{
data = value;
UpdateTextBoxFromData();
}
}
private string fileName;
public string FileName
{
get { return fileName; }
set
{
fileName = value;
UpdateFormTitle();
}
}
public string FilePath { get; set; }
public HexForm()
{
InitializeComponent();
LineSizeDropDown.Text = "16";
}
public void LoadData(string filename, string filepath, byte[] data)
{
FileName = filename;
FilePath = filepath;
Data = data;
}
private void UpdateFormTitle()
{
Text = fileName + " - Hex Viewer - CodeWalker by dexyfex";
}
private void UpdateTextBoxFromData()
{
if (data == null)
{
HexTextBox.Text = "";
return;
}
if (data.Length > (1048576 * 5))
{
HexTextBox.Text = "[File size > 5MB - Not shown due to performance limitations - Please use an external viewer for this file.]";
return;
}
Cursor = Cursors.WaitCursor;
//int selline = -1;
//int selstartc = -1;
//int selendc = -1;
bool ishex = (LineSizeDropDown.Text != "Text");
if (ishex)
{
int charsperln = int.Parse(LineSizeDropDown.Text);
int lines = (data.Length / charsperln) + (((data.Length % charsperln) > 0) ? 1 : 0);
StringBuilder hexb = new StringBuilder();
StringBuilder texb = new StringBuilder();
StringBuilder finb = new StringBuilder();
//if (offset > 0)
//{
// selline = offset / charsperln;
//}
for (int i = 0; i < lines; i++)
{
int pos = i * charsperln;
int poslim = pos + charsperln;
hexb.Clear();
texb.Clear();
hexb.AppendFormat("{0:X4}: ", pos);
for (int c = pos; c < poslim; c++)
{
if (c < data.Length)
{
byte b = data[c];
hexb.AppendFormat("{0:X2} ", b);
if (char.IsControl((char)b))
{
texb.Append(".");
}
else
{
texb.Append(Encoding.ASCII.GetString(data, c, 1));
}
}
else
{
hexb.Append(" ");
texb.Append(" ");
}
}
//if (i == selline) selstartc = finb.Length;
finb.AppendLine(hexb.ToString() + "| " + texb.ToString());
//if (i == selline) selendc = finb.Length - 1;
}
HexTextBox.Text = finb.ToString();
}
else
{
string text = Encoding.UTF8.GetString(data);
HexTextBox.Text = text;
//if (offset > 0)
//{
// selstartc = offset;
// selendc = offset + length;
//}
}
Cursor = Cursors.Default;
}
private void LineSizeDropDown_SelectedIndexChanged(object sender, EventArgs e)
{
UpdateTextBoxFromData();
}
}
}