private void OnPaintCanvas(object sender, SKPaintSurfaceEventArgs e)
{
SKImageInfo info = e.Info;
SKSurface surface = e.Surface;
SKCanvas canvas = surface.Canvas;
int surfaceWidth = info.Width;
int surfaceHeight = info.Height;
SKPoint surfaceSize = new SKPoint(surfaceWidth, surfaceHeight);
//絵画開始
//背景色を塗る
canvas.Clear(PaintColors.DefaultBackground);
SKBitmap bitmap = PaintPatterns.CheckeredPattern(PaintColors.Black);
//pathList絵画
foreach (var aPath in pathList)
{
if (!aPath.IsVisibility)
{
continue;
}
if (aPath.Points.Count >= 2)
{
canvas.DrawPath(aPath.ToSKPath(), aPath.FillPaint);
canvas.DrawPath(aPath.ToSKPath(), aPath.StrokePaint);
}
else if (aPath.Points.Count == 1)
{
canvas.DrawPoint(aPath.GetFirst(), aPath.StrokePaint);
}
}
//最前面
//Lasso色で暫定Pathを絵画
if (!inProgressPath.IsEmpty())
{
if (inProgressPath.Points.Count >= 2)
{
canvas.DrawPath(inProgressPath.ToSKPath(), inProgressPath.FillPaint);
canvas.DrawPath(inProgressPath.ToSKPath(), inProgressPath.StrokePaint);
}
else if (inProgressPath.Points.Count == 1)
{
canvas.DrawPoint(inProgressPath.GetFirst(), inProgressPath.StrokePaint);
}
}
}
private void PenTipChanged()
{
//ペン先のstrokeカラー設定
SKColor strokeColor = PaintColors.Transparent;
switch (strokeColorPicker.SelectedItem as string)
{
default:
case "None":
strokeColor = PaintColors.Transparent;
break;
case "Black":
strokeColor = PaintColors.Black;
break;
case "White":
strokeColor = PaintColors.White;
break;
case "Red":
strokeColor = PaintColors.Red;
break;
case "Yellow":
strokeColor = PaintColors.Yellow;
break;
case "Green":
strokeColor = PaintColors.Green;
break;
case "Blue":
strokeColor = PaintColors.Blue;
break;
}
SKPaint strokePaint = new SKPaint
{
IsAntialias = false,
Style = SKPaintStyle.Stroke,
Color = strokeColor,
StrokeWidth = (float)strokeSizeStepper.Value,
StrokeJoin = SKStrokeJoin.Round
};
inProgressPath.StrokePaint = strokePaint;
//ペン先のfillカラー設定
SKColor fillColor = PaintColors.Transparent;
switch (fillColorPicker.SelectedItem as string)
{
default:
case "None":
fillColor = PaintColors.Transparent;
break;
case "Black":
fillColor = PaintColors.Black;
break;
case "White":
fillColor = PaintColors.White;
break;
case "Red":
fillColor = PaintColors.Red;
break;
case "Yellow":
fillColor = PaintColors.Yellow;
break;
case "Green":
fillColor = PaintColors.Green;
break;
case "Blue":
fillColor = PaintColors.Blue;
break;
}
SKBitmap bitmap = new SKBitmap();
//ペン先のパターン設定
switch (fillPatternPicker.SelectedItem as string)
{
default:
case "Normal":
bitmap = PaintPatterns.NormalPattern(fillColor);
break;
case "Rough3x3":
bitmap = PaintPatterns.Rough3x3Pattern(fillColor);
break;
case "Rough2x2":
bitmap = PaintPatterns.Rough2x2Pattern(fillColor);
break;
case "Beads4x4":
bitmap = PaintPatterns.Beads4x4Pattern(fillColor);
break;
case "StripeX":
bitmap = PaintPatterns.StripeXPattern(fillColor);
break;
case "StripeY":
bitmap = PaintPatterns.StripeYPattern(fillColor);
break;
case "Checkered":
bitmap = PaintPatterns.CheckeredPattern(fillColor);
break;
case "Dense2x2":
bitmap = PaintPatterns.Dense2x2Pattern(fillColor);
break;
case "Dense3x3":
bitmap = PaintPatterns.Dense3x3Pattern(fillColor);
break;
case "LeftHatching":
bitmap = PaintPatterns.LeftHatching8x8Pattern(fillColor);
break;
case "RightHatching":
bitmap = PaintPatterns.RightHatching8x8Pattern(fillColor);
break;
}
//暫定Pathにpentipを設定
SKPaint fillPaint = new SKPaint
{
IsAntialias = false,
Style = SKPaintStyle.Fill,
Shader = SKShader.CreateBitmap(bitmap, SKShaderTileMode.Repeat, SKShaderTileMode.Repeat)
};
inProgressPath.FillPaint = fillPaint;
}
