private void convertFromTextToImageFileButton_Click2(object sender, EventArgs e)
{
if (string.IsNullOrWhiteSpace(_ImportTextFilePath))
{
MessageBox.Show(this, "No input path", "Choose a file to input to.", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
if (string.IsNullOrWhiteSpace(_OutputImageFilePath))
{
MessageBox.Show(this, "No output path", "Choose a file to output to.", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
var compressedByteArray = File.ReadAllBytes(_ImportTextFilePath);
var inputByteArray = Compression.Decompress(compressedByteArray);
//First byte is if it's encrypted
bool isEncrypted = Convert.ToBoolean(inputByteArray[0]);
// next 4 bytes contains the width
int width = Utilities.ConvertByteArrayToInt32(new byte[] { inputByteArray[1], inputByteArray[2], inputByteArray[3], inputByteArray[4] });
// next 4 bytes contains the height
int height = Utilities.ConvertByteArrayToInt32(new byte[] { inputByteArray[5], inputByteArray[6], inputByteArray[7], inputByteArray[8] });
// next byte is image type
ImageType imageType = ImageTypeDictionary.GetImageFromInt(inputByteArray[9]);
bool ignoreAlpha = Convert.ToBoolean(inputByteArray[10]);
_OutputImageFilePath = _OutputImageFilePath + "." + imageType.ToString();
int currentIndex = 11;
_ColorDictionary = new ColorDictionaryEncoder(8);
// bytes 11 - 1285 contain the byte dictionary library
for (int i = 0; i < Byte.MaxValue; i++)
{
int currentDictionaryIndex = currentIndex + (i * 5);
var key = inputByteArray[currentDictionaryIndex + 0];
var a = inputByteArray[currentDictionaryIndex + 1];
var b = inputByteArray[currentDictionaryIndex + 2];
var g = inputByteArray[currentDictionaryIndex + 3];
var r = inputByteArray[currentDictionaryIndex + 4];
_ColorDictionary.AddDecoderEntry(key, a, b, g, r);
}
currentIndex = 1286;
Bitmap outputImage = new Bitmap(width, height);
for (int i = 0; i < width; i++)
{
for (int j = 0; j < height; j++)
{
byte currentByte = inputByteArray[currentIndex];
Color outputColor = _ColorDictionary.GetColorFromByte(currentByte);
outputImage.SetPixel(i, j, outputColor);
currentIndex++;
}
int progress = (int)((i * 1.0 / width) * 100);
progressBar.Value = progress;
progressLabel.Text = progress.ToString() + " %";
progressLabel.Refresh();
}
progressBar.Value = 0;
progressLabel.Text = "Done";
outputImage.Save(_OutputImageFilePath);
}
private void convertImageToTextButton_Click2(object sender, EventArgs eventArgs)
{
_ColorDictionary = new ColorDictionaryEncoder(compressionRateTrackBar.Value);
bool doEncryption = false;
string tempFilePath = "";
Bitmap img;
if (string.IsNullOrWhiteSpace(_ImportImageFilePath))
{
MessageBox.Show(this, "No output path", "Choose a file to output to.", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
if (compressCheckBox.Checked)
{
// compress if checked
try
{
// get temp folder output path
var importPath = Path.GetDirectoryName(_ImportImageFilePath);
var tempFileName = Path.GetFileNameWithoutExtension(_ImportImageFilePath) + Guid.NewGuid().ToString() + Path.GetExtension(_ImportImageFilePath);
var newFilePath = Path.Combine(importPath, tempFileName);
tempFilePath = newFilePath;
Encoder.CompressImage(_ImportImageFilePath, newFilePath, compressionRateTrackBar.Value);
_ImportImageFilePath = newFilePath;
}
catch (Exception e)
{
//unable to compress, ignore
}
}
try
{
img = new Bitmap(_ImportImageFilePath);
}
catch (Exception bitmapException)
{
MessageBox.Show(this, "Invalid Image Type", "Unsupported image type. Try another file", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
if (img.Width > short.MaxValue)
{
MessageBox.Show(this, "Image Too Large", "Image is too large(too wide). Try another file.", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
if (img.Height > short.MaxValue)
{
MessageBox.Show(this, "Image Too Large", "Image is too large(too tall). Try another file.", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
if (string.IsNullOrWhiteSpace(_OutputTextFilePath))
{
MessageBox.Show(this, "No output path", "Choose a file to output to.", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
List <byte> bytesToWriteToFile = new List <byte>();
// first byte contains whether it's encrpyed or not
byte isEncryptedByte = Convert.ToByte(doEncryption);
bytesToWriteToFile.Add(isEncryptedByte);
// next 4 bytes contains the width
var widthByteArray = Utilities.ConvertIntToByteArray(img.Width);
bytesToWriteToFile.Add(widthByteArray[0]);
bytesToWriteToFile.Add(widthByteArray[1]);
bytesToWriteToFile.Add(widthByteArray[2]);
bytesToWriteToFile.Add(widthByteArray[3]);
// next four bytes contains the height
var heightByteArray = Utilities.ConvertIntToByteArray(img.Height);
bytesToWriteToFile.Add(heightByteArray[0]);
bytesToWriteToFile.Add(heightByteArray[1]);
bytesToWriteToFile.Add(heightByteArray[2]);
bytesToWriteToFile.Add(heightByteArray[3]);
var imageExtension = Path.GetExtension(_ImportImageFilePath);
ImageType imageTypeEnum = ImageTypeDictionary.GetEnumFromString(imageExtension);
byte imageType = ImageTypeDictionary.GetIntFromImageType(imageTypeEnum);
bytesToWriteToFile.Add(imageType);
// add ignore alpha channel byte to file
byte ignoreAlpha = Convert.ToByte(ignoreAlphaChannelCheckbox.Checked);
bytesToWriteToFile.Add(ignoreAlpha);
//next byte is the compression rate
var compressionRateDecimal = compressionRateTrackBar.Value / 100.0;
byte bitsToCompressTo = (byte)Math.Floor(compressionRateDecimal * 8);
if (bitsToCompressTo == 0)
{
bitsToCompressTo = 1;
}
// not adding compression rate right now
//bytesToWriteToFile.Add(bitsToCompressTo);
for (int i = 0; i < img.Width; i++)
{
for (int j = 0; j < img.Height; j++)
{
Color pixel = img.GetPixel(i, j);
byte a = pixel.A;
byte b = pixel.B;
byte g = pixel.G;
byte r = pixel.R;
_ColorDictionary.AddEntry(a, b, g, r);
}
int progress = (int)((i * 1.0 / img.Width) * 100);
progressBar.Value = progress;
progressLabel.Text = progress.ToString() + " %";
progressLabel.Refresh();
}
bytesToWriteToFile.AddRange(_ColorDictionary.GetDictionaryByteValues());
for (int i = 0; i < img.Width; i++)
{
for (int j = 0; j < img.Height; j++)
{
Color pixel = img.GetPixel(i, j);
byte a = pixel.A;
byte b = pixel.B;
byte g = pixel.G;
byte r = pixel.R;
byte byteToWrite = _ColorDictionary.GetBytesForColors(a, b, g, r);
bytesToWriteToFile.Add(byteToWrite);
}
int progress = (int)((i * 1.0 / img.Width) * 100);
progressBar.Value = progress;
progressLabel.Text = progress.ToString() + " %";
progressLabel.Refresh();
}
var uncompressed = bytesToWriteToFile.ToArray();
var compressed = Compression.Compress(uncompressed);
File.WriteAllBytes(_OutputTextFilePath, compressed); // Requires System.IO
progressBar.Value = 0;
progressLabel.Text = "Done";
_ImportImageFilePath = inputFileTextBox.Text;
if (!string.IsNullOrEmpty(tempFilePath))
{
img.Dispose();
//File.Delete(tempFilePath);
}
}
