private void GradientGenerator_DoWork(object sender, DoWorkEventArgs e)
{
GrayBitmap asyncImage = (GrayBitmap)e.Argument;
try
{
if (asyncImage.Gradient.Bitmap == null)
{
// Don't step through this code with an Locals or Auto
// window opened at all. VS will crash the background thread.
timer.Start();
asyncImage.Gradient.GenerateGradientBitmap(new ProgressCallback(GradientGenerator.ReportProgress));
timer.Stop();
e.Result = asyncImage.Gradient;
}
}
catch (Exception ex)
{
e.Result = ex;
}
finally
{
asyncImage.Bitmap.Dispose();
}
}
/// <summary>
/// Clones this object so it can be safely read from another thread.
/// </summary>
/// <remarks>
/// The clone will point to the original gray image.
/// </remarks>
public virtual GradientBitmap Clone(GrayBitmap newClonedGrayImage)
{
GradientBitmap clone = new GradientBitmap(newClonedGrayImage);
clone.maximumGradientValue = this.maximumGradientValue;
if (this.bitmap != null)
clone.bitmap = (Bitmap)this.bitmap.Clone();
return clone;
}
/// <summary>
/// Instantiates a <see cref="GradientBitmap"/> class.
/// </summary>
public GradientBitmap(GrayBitmap original)
{
if (original == null)
{
throw new ArgumentNullException("original");
}
this.grayBitmap = original;
Reset();
}
public GrayBitmap Clone()
{
GrayBitmap clone = new GrayBitmap();
if (bitmap != null)
clone.bitmap = (Bitmap)bitmap.Clone();
if (gradient != null)
clone.gradient = gradient.Clone(clone);
clone.maximumGrayValue = maximumGrayValue;
return clone;
}
/// <summary>
/// Clones this object so it can be safely read from another thread.
/// </summary>
/// <remarks>
/// The clone will point to the original gray image.
/// </remarks>
public virtual GradientBitmap Clone(GrayBitmap newClonedGrayImage)
{
GradientBitmap clone = new GradientBitmap(newClonedGrayImage);
clone.maximumGradientValue = this.maximumGradientValue;
if (this.bitmap != null)
{
clone.bitmap = (Bitmap)this.bitmap.Clone();
}
return(clone);
}
private void FileLoader_DoWork(object sender, DoWorkEventArgs e)
{
FileLoadingParams fileLoadingParams = (FileLoadingParams)e.Argument;
timer.Start();
GrayBitmap img = new GrayBitmap();
string segmentationPoints;
using (Stream file = fileLoadingParams.FileStream)
img.Load(file, out segmentationPoints, new ProgressCallback(FileLoader.ReportProgress));
timer.Stop();
e.Result = new FileLoadingResult(img, segmentationPoints);
}
public GrayBitmap Clone()
{
GrayBitmap clone = new GrayBitmap();
if (bitmap != null)
{
clone.bitmap = (Bitmap)bitmap.Clone();
}
if (gradient != null)
{
clone.gradient = gradient.Clone(clone);
}
clone.maximumGrayValue = maximumGrayValue;
return(clone);
}
private void FileLoader_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
{
FileLoadingResult result = (FileLoadingResult)e.Result;
Status = null;
lblLastOperationTime.Text = timer.Elapsed.ToString();
if (result.GrayImage != null)
{
image = result.GrayImage;
tbSegmentPoints.Text = result.SegmentationPoints;
// Display the image.
boxImage.BackgroundImage = image.Bitmap;
boxImage.Image = PrepareOverlay();
boxGradient.BackgroundImage = image.Gradient.Bitmap;
boxGradient.Image = boxImage.Image;
// Enable toolbar buttons
//btnShowGradient.Enabled = true;
btnSaveFile.Enabled = true;
// Size the application window appropriately.
Width += boxImage.BackgroundImage.Width - boxImage.Width;
Height += boxImage.BackgroundImage.Height - boxImage.Height;
// Start generating the gradient right away
GenerateGradient();
tabControl1.SelectTab(tabImage);
}
else if (result.Exception != null)
{
if (MessageBox.Show(this, result.Exception.ToString(), "Error during image load.",
MessageBoxButtons.RetryCancel, MessageBoxIcon.Error) == DialogResult.Retry)
{
GenerateGradient();
}
}
}
/// <summary>
/// constructor for intelligent scissors.
/// </summary>
/// <param name="image">the image you are oging to segment. has methods for getting gradient information</param>
/// <param name="overlay">an overlay on which you can draw stuff by setting pixels.</param>
public DijkstraScissors(GrayBitmap image, Bitmap overlay)
: base(image, overlay)
{
}
public DijkstraScissors(GrayBitmap image, Bitmap overlay) : base(image, overlay)
{
}
public SimpleScissors(GrayBitmap image, Bitmap overlay)
: base(image, overlay)
{
}
/// <summary>
/// constructor for SimpleScissors.
/// </summary>
/// <param name="image">the image you are going to segment including methods for getting gradients.</param>
/// <param name="overlay">a bitmap on which you can draw stuff.</param>
public SimpleScissors(GrayBitmap image, Bitmap overlay) : base(image, overlay)
{
}
public StraightScissors(GrayBitmap image, Bitmap overlay)
: base(image, overlay)
{
}
public FileLoadingResult(GrayBitmap grayImage, string segmentationPoints)
{
this.GrayImage = grayImage;
this.SegmentationPoints = segmentationPoints;
this.Exception = null;
}
public FileLoadingResult(Exception ex)
{
this.Exception = ex;
this.SegmentationPoints = null;
this.GrayImage = null;
}
private void FileLoader_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
{
FileLoadingResult result = (FileLoadingResult)e.Result;
Status = null;
lblLastOperationTime.Text = timer.Elapsed.ToString();
if (result.GrayImage != null)
{
image = result.GrayImage;
tbSegmentPoints.Text = result.SegmentationPoints;
// Display the image.
boxImage.BackgroundImage = image.Bitmap;
boxImage.Image = PrepareOverlay();
boxGradient.BackgroundImage = image.Gradient.Bitmap;
boxGradient.Image = boxImage.Image;
// Enable toolbar buttons
//btnShowGradient.Enabled = true;
btnSaveFile.Enabled = true;
// Size the application window appropriately.
Width += boxImage.BackgroundImage.Width - boxImage.Width;
Height += boxImage.BackgroundImage.Height - boxImage.Height;
// Start generating the gradient right away
GenerateGradient();
tabControl1.SelectTab(tabImage);
}
else if (result.Exception != null)
{
if (MessageBox.Show(this, result.Exception.ToString(), "Error during image load.",
MessageBoxButtons.RetryCancel, MessageBoxIcon.Error) == DialogResult.Retry)
GenerateGradient();
}
}
private void FileLoader_DoWork(object sender, DoWorkEventArgs e)
{
FileLoadingParams fileLoadingParams = (FileLoadingParams)e.Argument;
timer.Start();
GrayBitmap img = new GrayBitmap();
string segmentationPoints;
using (Stream file = fileLoadingParams.FileStream)
img.Load(file, out segmentationPoints, new ProgressCallback(FileLoader.ReportProgress));
timer.Stop();
e.Result = new FileLoadingResult(img, segmentationPoints);
}
protected Scissors(GrayBitmap image, Bitmap overlay)
{
Image = image;
Overlay = overlay;
}
public StraightScissors(GrayBitmap image, Bitmap overlay) : base(image, overlay)
{
}
/// <summary>
/// Instantiates a <see cref="GradientBitmap"/> class.
/// </summary>
public GradientBitmap(GrayBitmap original)
{
if (original == null) throw new ArgumentNullException("original");
this.grayBitmap = original;
Reset();
}
protected Scissors(GrayBitmap image, Bitmap overlay)
{
Image = image;
Overlay = overlay;
}
public FileLoadingResult(GrayBitmap grayImage, string segmentationPoints)
{
this.GrayImage = grayImage;
this.SegmentationPoints = segmentationPoints;
this.Exception = null;
}