public void TestPixelCount()
{
// Create the tracker
PixelHistoryTracker tracker = new PixelHistoryTracker(false, 12);
// Add the pixels
tracker.RegisterPixel(5, 5, 0xFF, 0x1F);
tracker.RegisterPixel(6, 5, 0xEF, 0x2F);
tracker.RegisterPixel(7, 5, 0xCF, 0x3F);
Assert.AreEqual(3, tracker.PixelCount, "After consecutive calls to RegisterPixel, the pixel count must match the number of unique pixels provided");
}
public void TestDuplicatedPixelRegisteringReplaceOriginal()
{
// Create the tracker
PixelHistoryTracker tracker = new PixelHistoryTracker(false, 12);
// Add the pixels
tracker.RegisterPixel(5, 5, 0xFF, 0x1F, false);
tracker.RegisterPixel(5, 5, 0xEF, 0x2F, false);
tracker.RegisterPixel(5, 5, 0xCF, 0x3F, false);
var undo = tracker.PixelUndoForPixel(5, 5);
Assert.IsTrue(undo != null && undo.Value.OldColor == 0xCF,
"The returned PixelUndo does not contains the undo color that was expected. The pixel color must match the color of the last pixel registered RegisterPixel");
}
public void TestClearing()
{
// Create the tracker
PixelHistoryTracker tracker = new PixelHistoryTracker(false, 12);
// Add the pixels
tracker.RegisterPixel(5, 5, 0xFF, 0x1F);
tracker.RegisterPixel(6, 5, 0xEF, 0x2F);
tracker.RegisterPixel(7, 5, 0xCF, 0x3F);
tracker.Clear();
var undo = tracker.PixelUndoForPixel(5, 5);
Assert.IsNull(undo, "After a call to .Clear(), all pixels that were previously stored must be cleared off the PixelHistoryTracker");
}
public void TestPixelRegistering()
{
// Create the tracker
PixelHistoryTracker tracker = new PixelHistoryTracker(true, 12);
// Add the pixels
tracker.RegisterPixel(5, 5, 0xFF, 0x1F);
var undo = tracker.PixelUndoForPixel(5, 5);
Assert.IsTrue(undo != null && undo.Value.OldColor == 0xFF, "The returned PixelUndo does not contains the undo color that was expected");
}
/// <summary>
/// Plots a pencil point at the specified point coordinates
/// </summary>
/// <param name="pointX">The X position to plot at</param>
/// <param name="pointY">The Y position to plot at</param>
public virtual void PlotPixel(int pointX, int pointY)
{
// Test boundaries
if (!WithinBounds(pointX, pointY))
{
return;
}
if (!AccumulateAlpha && pixelsDrawn.ContainsPixel(pointX, pointY))
{
return;
}
Color oldColor = (useFastBitmap ? fastBitmap.GetPixel(pointX, pointY) : targetBitmap.GetPixel(pointX, pointY));
Color newColor = GetBlendedColor(oldColor);
uint oldColorArgb = unchecked ((uint)oldColor.ToArgb());
uint newColorArgb = unchecked ((uint)newColor.ToArgb());
// If the colors are virtually the same, quit early
if (oldColorArgb == newColorArgb)
{
return;
}
if (useFastBitmap)
{
fastBitmap.SetPixel(pointX, pointY, newColorArgb);
}
else
{
targetBitmap.SetPixel(pointX, pointY, newColor);
}
if (!AccumulateAlpha)
{
pixelsDrawn.RegisterPixel(pointX, pointY, oldColorArgb, newColorArgb);
}
Notifier?.PlottedPixel(new Point(pointX, pointY), (int)oldColorArgb, (int)newColorArgb);
}
