public void Draw(object context, double width, double height, double dx, double dy, double zx, double zy)
{
bool isStyleLibraryDirty = _context.StyleLibrary.IsStyleLibraryDirty();
bool isCurrentContainerDirty = _view.CurrentContainer.IsCanvasContainerDirty();
bool isWorkingContainerDirty = _view.WorkingContainer.IsCanvasContainerDirty();
bool isPointsCurrentContainerDirty = _view.CurrentContainer.IsPointsDirty();
bool isPointsWorkingContainerDirty = _view.WorkingContainer.IsPointsDirty();
bool isShapesCurrentDirty = isCurrentContainerDirty == true || isPointsCurrentContainerDirty == true || _previousZX != zx || _previousZY != zy;
bool isShapesWorkingDirty = isWorkingContainerDirty == true || isPointsWorkingContainerDirty == true || _previousZX != zx || _previousZY != zy;
if (_pictureShapesCurrent == null || isShapesCurrentDirty == true || isStyleLibraryDirty == true)
{
if (_pictureShapesCurrent != null)
{
_pictureShapesCurrent.Dispose();
}
_pictureShapesCurrent = RecordPicture(_view, _skiaRenderer, zx, DrawShapesCurrent);
}
if (_pictureShapesWorking == null || isShapesWorkingDirty == true || isStyleLibraryDirty == true)
{
if (_pictureShapesWorking != null)
{
_pictureShapesWorking.Dispose();
}
_pictureShapesWorking = RecordPicture(_view, _skiaRenderer, zx, DrawShapesWorking);
}
bool isSelectionDirty = _view.SelectionState.IsDirty == true || isShapesCurrentDirty == true || isShapesWorkingDirty == true;
#if USE_DEBUG_DIRTY
Log.WriteLine(
$"{nameof(isStyleLibraryDirty)}: {isStyleLibraryDirty}, " +
$"{nameof(isShapesCurrentDirty)}: {isShapesCurrentDirty}, " +
$"{nameof(isShapesWorkingDirty)}: {isShapesWorkingDirty}, " +
$"{nameof(isCurrentContainerDirty)}: {isCurrentContainerDirty}, " +
$"{nameof(isWorkingContainerDirty)}: {isWorkingContainerDirty}, " +
$"{nameof(isSelectionDirty)}: {isSelectionDirty}");
#endif
if (_view.SelectionState.IsDirty == true)
{
_view.SelectionState.Invalidate();
}
if (_pictureDecorators == null || isSelectionDirty == true || isStyleLibraryDirty == true)
{
if (_pictureDecorators != null)
{
_pictureDecorators.Dispose();
}
_pictureDecorators = RecordPicture(_view, _skiaRenderer, zx, DrawDecorators);
}
if (_picturePoints == null || isSelectionDirty == true || isStyleLibraryDirty == true)
{
if (_picturePoints != null)
{
_picturePoints.Dispose();
}
_picturePoints = RecordPicture(_view, _skiaRenderer, zx, DrawPoints);
}
_previousZX = zx;
_previousZY = zy;
var canvas = context as SKCanvas;
if (_view.InputBackground != null)
{
canvas.Clear(SkiaHelper.ToSKColor(_view.InputBackground));
}
else
{
canvas.Clear();
}
if (_view.WorkBackground != null)
{
GetSKPaintFill(_view.WorkBackground, false, out var brush);
canvas.Save();
canvas.Translate((float)dx, (float)dy);
canvas.Scale((float)zx, (float)zy);
canvas.DrawRect(SkiaHelper.ToSKRect(0.0, 0.0, _view.Width, _view.Height), brush);
canvas.Restore();
}
// TODO: Fix grid X and Y position.
//DrawGrid(canvas, dx, dy, zx, zy);
DrawPicture(canvas, _pictureShapesCurrent, dx, dy, zx, zy);
DrawPicture(canvas, _pictureShapesWorking, dx, dy, zx, zy);
DrawPicture(canvas, _pictureDecorators, dx, dy, zx, zy);
DrawPicture(canvas, _picturePoints, dx, dy, zx, zy);
if (_enablePictureCache == false)
{
_picturePoints.Dispose();
_picturePoints = null;
_pictureDecorators.Dispose();
_pictureDecorators = null;
_pictureShapesWorking.Dispose();
_pictureShapesWorking = null;
_pictureShapesCurrent.Dispose();
_pictureShapesCurrent = null;
}
if (isCurrentContainerDirty == true)
{
_view.CurrentContainer?.Invalidate();
}
if (isWorkingContainerDirty == true)
{
_view.WorkingContainer?.Invalidate();
}
if (isStyleLibraryDirty == true)
{
_context.StyleLibrary?.Invalidate();
}
}