//C++ TO C# CONVERTER TODO TASK: The implementation of the following method could not be found:
// public void Dispose();
public static SKRectI GetDeviceBounds(SKRect rect, SKMatrix ctm)
{
SKRect device_rect = new SKRect();
SKMatrix.MapRect(ref ctm, out device_rect, ref rect);
var bounds = SKRectI.Round(device_rect);
return(bounds);
}
/// <summary>
/// Checks whether the region intersects the given rectangle.
/// </summary>
/// <param name="region">The region to check collision with.</param>
/// <param name="rect">The rectangle to check for intersection.</param>
internal static bool IntersectsRect(this SKRegion region, SKRect rect)
{
if (region.Bounds.IsEmpty)
{
return(false);
}
using SKRegion rectRegion = new SKRegion();
rectRegion.SetRect(SKRectI.Round(rect));
return(region.Intersects(rectRegion));
}
public void SKRectIRoundWorksAsExpected()
{
Assert.Equal(new SKRectI(6, 6, 21, 21), SKRectI.Round(new SKRect(5.51f, 5.51f, 20.51f, 20.51f)));
Assert.Equal(new SKRectI(5, 6, 20, 21), SKRectI.Round(new SKRect(5.41f, 5.61f, 20.41f, 20.61f)));
Assert.Equal(new SKRectI(20, 21, 5, 6), SKRectI.Round(new SKRect(20.41f, 20.61f, 5.41f, 5.61f)));
}
protected override void OnDraw(SKImageInfo info, SKCanvas canvas)
{
if (CanvasSizeChanged)
{
_outterRect = SKRect.Create(
_outterWidthRatio * info.Width / -2,
_outterHeightRatio * info.Height / -2,
_outterWidthRatio * info.Width,
_outterHeightRatio * info.Height);
}
if (_firstDraw)
{
if (IsSquare)
{
float cropRectLength = Math.Min(_initCropperWidthRatio * info.Width, _initCropperHeightRatio * info.Height);
_cropRect = SKRect.Create(cropRectLength / -2, cropRectLength / -2, cropRectLength, cropRectLength);
}
else
{
_cropRect = SKRect.Create(
_initCropperWidthRatio * info.Width / -2,
_initCropperHeightRatio * info.Height / -2,
_initCropperWidthRatio * info.Width,
_initCropperHeightRatio * info.Height);
}
_firstDraw = false;
}
//Draw Dim Bg
using SKRegion bgRegion = new SKRegion(SKRectI.Round(_outterRect));
bgRegion.Op(SKRectI.Round(_cropRect), SKRegionOperation.Difference);
canvas.DrawRegion(bgRegion, _outterRectPaint);
//Draw CropRect
canvas.DrawRect(_cropRect, _cropperRectPaint);
//Draw Corner
using SKPath cornerPath = new SKPath();
//左上角
cornerPath.MoveTo(_cropRect.Left + _cornerLength, _cropRect.Top);
cornerPath.LineTo(_cropRect.Left, _cropRect.Top);
cornerPath.LineTo(_cropRect.Left, _cropRect.Top + _cornerLength);
//右上角
cornerPath.MoveTo(_cropRect.Right - _cornerLength, _cropRect.Top);
cornerPath.LineTo(_cropRect.Right, _cropRect.Top);
cornerPath.LineTo(_cropRect.Right, _cropRect.Top + _cornerLength);
//左下角
cornerPath.MoveTo(_cropRect.Left + _cornerLength, _cropRect.Bottom);
cornerPath.LineTo(_cropRect.Left, _cropRect.Bottom);
cornerPath.LineTo(_cropRect.Left, _cropRect.Bottom - _cornerLength);
//右下角
cornerPath.MoveTo(_cropRect.Right - _cornerLength, _cropRect.Bottom);
cornerPath.LineTo(_cropRect.Right, _cropRect.Bottom);
cornerPath.LineTo(_cropRect.Right, _cropRect.Bottom - _cornerLength);
canvas.DrawPath(cornerPath, _cornerPaint);
}
public static SKRectI ToSKRectI(this Rectangle rectangle)
{
return(SKRectI.Round(ToSKRect(rectangle)));
}
