private void ReadPixel()
{
string pathOfBitmapMap = $@"{Application.StartupPath}\{@"Gfx\provinces.bmp"}";
if (File.Exists(pathOfBitmapMap) == false)
{
return;
}
int idProvince = GetMaxIdProvince();
var dictCache = Provinces.ToDictionary(p => $"{p.R}{p.G}{p.B}");
BitmapMap = new Bitmap(Image.FromFile(pathOfBitmapMap));
m_mapProvinceDefinitionItem = new ProvinceDefinitionItem[BitmapMap.Width, BitmapMap.Height];
Rectangle rectangle = new Rectangle(0, 0, BitmapMap.Width, BitmapMap.Height);
BitmapData bitmapData = BitmapMap.LockBits(rectangle, ImageLockMode.ReadOnly, BitmapMap.PixelFormat);
int length = bitmapData.Stride * BitmapMap.Height;
byte[] rawBytes = new byte[length];
System.Runtime.InteropServices.Marshal.Copy(bitmapData.Scan0, rawBytes, 0, length);
BitmapMap.UnlockBits(bitmapData);
var province = new ProvinceDefinitionItem();
var colorKey = new StringBuilder();
for (int nXndex = 0; nXndex < BitmapMap.Width; nXndex++)
{
for (int nYndex = 0; nYndex < BitmapMap.Height; nYndex++)
{
var pixelColor = Color.FromArgb(rawBytes[nYndex * bitmapData.Stride + nXndex * 4 + 3], rawBytes[nYndex * bitmapData.Stride + nXndex * 4 + 2], rawBytes[nYndex * bitmapData.Stride + nXndex * 4 + 1], rawBytes[nYndex * bitmapData.Stride + nXndex * 4]);
if (!(province.R == pixelColor.R && province.G == pixelColor.G && province.B == pixelColor.B))
{
colorKey.Clear();
colorKey.Append(pixelColor.R);
colorKey.Append(pixelColor.G);
colorKey.Append(pixelColor.B);
var colorKeyString = colorKey.ToString();
province = dictCache.ContainsKey(colorKeyString) ?
dictCache[colorKeyString] :
new ProvinceDefinitionItem(++idProvince, pixelColor.R, pixelColor.G, pixelColor.B, $"NewProvince_{idProvince}", string.Empty);
}
province.Pixels.Add(new Pixel(nXndex, nYndex));
m_mapProvinceDefinitionItem[nXndex, nYndex] = province;
}
}
BitmapMapOverlay = new Bitmap(BitmapMap);
}
