/// <summary>
/// Find the target location of the image
/// </summary>
/// <param name="previousImage"></param>
/// <returns>StitchInfo for fluent usage</returns>
public StitchInfo FindTargetLocation(StitchInfo previousImage)
{
int currentImageHeight = _sourceRect.Height;
// Find location in the other image
for (int location = 0; location < previousImage.SourceRect.Height; location++)
{
// Do not try to match until the size makes sense
if (_sourceRect.Height - location > currentImageHeight)
{
continue;
}
bool isMatch = true;
int y = 0;
while (location + y < previousImage.SourceRect.Height && _sourceRect.Top + y < previousImage._sourceRect.Bottom)
{
if (previousImage._hashes[previousImage._sourceRect.Top + location + y] != _hashes[_sourceRect.Top + y])
{
isMatch = false;
break;
}
y++;
}
if (!isMatch)
{
continue;
}
_sourceRect = new NativeRect(_sourceRect.X, _sourceRect.Y + y, _sourceRect.Width, _sourceRect.Height - y);
break;
}
return(this);
}
/// <summary>
/// Adds a bitmap to be stitched
/// </summary>
/// <param name="bitmap">Bitmap</param>
/// <returns>BitmapStitcher for fluent calling</returns>
public BitmapStitcher AddBitmap(Bitmap bitmap)
{
if (!_resultPixelFormat.HasValue)
{
_resultPixelFormat = bitmap.PixelFormat;
}
var stitchInfo = new StitchInfo(bitmap);
_stitchInfos.Add(stitchInfo);
return(this);
}
/// <summary>
/// Scans the header, and changes the SourceRect if something is found
/// </summary>
/// <param name="primaryImage">StitchInfo for the first image</param>
public StitchInfo RemoveHeader(StitchInfo primaryImage)
{
int headerLines = 0;
var primaryImageHashes = primaryImage._hashes;
// Find header
while (headerLines < primaryImageHashes.Count && primaryImageHashes[headerLines] == _hashes[headerLines])
{
headerLines++;
}
// Not interested in 1 line
if (headerLines > 1)
{
// Remove the lines, by moving the top down (and reducing the height)
_sourceRect = new NativeRect(_sourceRect.X, headerLines, _sourceRect.Width, _sourceRect.Height - headerLines);
}
return(this);
}
/// <summary>
/// Scans the footer, and changes the SourceRect if something is found
/// </summary>
/// <param name="primaryImage">StitchInfo for the first image</param>
public StitchInfo RemoveFooter(StitchInfo primaryImage)
{
var primaryHashes = primaryImage._hashes;
int footerLines = -1;
int primaryLocation, footerLocation;
// Find footer
do
{
footerLines++;
primaryLocation = primaryImage.SourceRect.Bottom - footerLines;
footerLocation = _sourceRect.Bottom - footerLines;
} while (footerLocation > _sourceRect.Top && primaryLocation > primaryImage.SourceRect.Top && primaryHashes[primaryLocation] == _hashes[footerLocation]);
// Not interested in 1 line
if (footerLines > 1)
{
// Remove the lines by removing the height
_sourceRect = new NativeRect(_sourceRect.X, _sourceRect.Y, _sourceRect.Width, _sourceRect.Height - footerLines);
}
return(this);
}
