void AssertShiftPixels(IndexedImage image, int dx, int dy, bool shouldBeSame)
{
var sourcePixels = new int[image.Pixels.Length];
image.Pixels.CopyTo(sourcePixels, 0);
ImageShifter.ShiftPixels(image, dx, dy);
for (int y = 0; y < image.Size.Height; y++)
{
for (int x = 0; x < image.Size.Width; x++)
{
var srcIndex = y * image.Size.Width + x;
if (shouldBeSame)
{
Assert.AreEqual(sourcePixels[srcIndex], image.Pixels[srcIndex]);
}
else
{
var sy = y + dy;
var sx = x + dx;
if (sy >= 0 && sy < image.Size.Height && sx >= 0 && sx < image.Size.Width)
{
var dstIndex = sy * image.Size.Width + sx;
Assert.AreEqual(sourcePixels[srcIndex], image.Pixels[dstIndex]);
}
}
}
}
}
internal void ShiftImageAndUpdateRest(IPainter painter, IndexedImage canvas, Point imageStartPoint, Size shiftDelta)
{
var pixelShift = new Size(shiftDelta.Width * CellSize, shiftDelta.Height * CellSize);
ImageShifter.ShiftPixels(canvas, -pixelShift.Width, -pixelShift.Height);
if (shiftDelta.Height != 0)
{
if (shiftDelta.Height < 0) // Shifting down - repaint rows at top
{
using (painter.Clip(new Rectangle(0, 0, canvas.Size.Width, RulerWidth - pixelShift.Height)))
{
Paint(painter, canvas.Size, painter.ClipRect, imageStartPoint);
}
}
else // Shifting up - repaint rows at bottom
{
using (painter.Clip(new Rectangle(0, canvas.Size.Height - pixelShift.Height, canvas.Size.Width, pixelShift.Height)))
{
Paint(painter, canvas.Size, painter.ClipRect, imageStartPoint);
}
if (ShowRulers)
{
using (painter.Clip(new Rectangle(0, 0, canvas.Size.Width, RulerWidth)))
{
Paint(painter, canvas.Size, painter.ClipRect, imageStartPoint);
}
}
}
}
if (shiftDelta.Width != 0)
{
if (shiftDelta.Width < 0) // Shifting right - repaint columns at left
{
using (painter.Clip(new Rectangle(0, 0, RulerWidth - pixelShift.Width, canvas.Size.Height)))
{
Paint(painter, canvas.Size, painter.ClipRect, imageStartPoint);
}
}
else // Shift left - repaint columns at right
{
using (painter.Clip(new Rectangle(canvas.Size.Width - pixelShift.Width, 0, pixelShift.Width, canvas.Size.Height)))
{
Paint(painter, canvas.Size, painter.ClipRect, imageStartPoint);
}
if (ShowRulers)
{
using (painter.Clip(new Rectangle(0, 0, RulerWidth, canvas.Size.Height)))
{
Paint(painter, canvas.Size, painter.ClipRect, imageStartPoint);
}
}
}
}
}
public void Awake()
{
if (Instance == null)
{
Instance = this;
}
else
{
Destroy(gameObject);
}
}
void ShiftImageAndUpdateRest(int shiftDelta)
{
ImageShifter.ShiftPixels(VisualImage, 0, -shiftDelta);
int firstDirtyRow, lastDirtyRow;
if (shiftDelta < 0) // Shifting down - repaint rows at top
{
firstDirtyRow = VerticalShift / CellSize;
lastDirtyRow = (VerticalShift - shiftDelta) / CellSize;
}
else // Shifting up - repaint rows at bottom
{
firstDirtyRow = (VerticalShift - shiftDelta + VisualImage.Size.Height - 1) / CellSize;
lastDirtyRow = (VerticalShift + VisualImage.Size.Height - 1) / CellSize;
}
UpdateImageQuick(firstDirtyRow * ColumnsCount, (lastDirtyRow + 1) * ColumnsCount);
}
