public void TestAlphaRegex()
{
const string Querystring = "alpha=56";
const int Expected = 56;
Alpha alpha = new Alpha();
alpha.MatchRegexIndex(Querystring);
int actual = alpha.DynamicParameter;
Assert.AreEqual(Expected, actual);
}
/// <summary>
/// Changes the opacity of the current image.
/// </summary>
/// <param name="percentage">
/// The percentage by which to alter the images opacity.
/// Any integer between 0 and 100.
/// </param>
/// <returns>
/// The current instance of the <see cref="T:ImageProcessor.ImageFactory"/> class.
/// </returns>
public ImageFactory Alpha(int percentage)
{
if (this.ShouldProcess)
{
// Sanitize the input.
percentage = ImageMaths.Clamp(percentage, 0, 100);
Alpha alpha = new Alpha { DynamicParameter = percentage };
this.CurrentImageFormat.ApplyProcessor(alpha.ProcessImage, this);
}
return this;
}
/// <summary>
/// Changes the opacity of the current image.
/// </summary>
/// <param name="percentage">
/// The percentage by which to alter the images opacity.
/// Any integer between 0 and 100.
/// </param>
/// <returns>
/// The current instance of the <see cref="T:ImageProcessor.ImageFactory"/> class.
/// </returns>
public ImageFactory Alpha(int percentage)
{
if (this.ShouldProcess)
{
// Sanitize the input.
if (percentage > 100 || percentage < 0)
{
percentage = 0;
}
Alpha alpha = new Alpha { DynamicParameter = percentage };
this.Image = alpha.ProcessImage(this);
}
return this;
}
/// <summary>
/// Changes the opacity of the current image.
/// </summary>
/// <param name="percentage">
/// The percentage by which to alter the images opacity.
/// Any integer between 0 and 100.
/// </param>
/// <returns>
/// The current instance of the <see cref="T:ImageProcessor.ImageFactory"/> class.
/// </returns>
public ImageFactory Alpha(int percentage)
{
if (this.ShouldProcess)
{
// Sanitize the input.
// You can't make an image less transparent.
if (percentage < 0 || percentage > 99)
{
return this;
}
Alpha alpha = new Alpha { DynamicParameter = percentage };
this.backupFormat.ApplyProcessor(alpha.ProcessImage, this);
}
return this;
}
