public void StrokePropertyValuesAreCorrect()
{
var paint = new SKPaint();
paint.IsStroke = true;
Assert.IsTrue(paint.IsStroke);
paint.IsStroke = false;
Assert.IsFalse(paint.IsStroke);
}
public SKImage BurnIn(string fileName)
{
//read all images into memory
SKImage finalImage = null;
//create a bitmap from the file and add it to the list
SKBitmap bitmap = SKBitmap.Decode(fileName);
try
{
int width = 0;
int height = 0;
//update the size of the final bitmap
width += bitmap.Width;
height += bitmap.Height;
//get a surface so we can draw an image
using (var tempSurface = SKSurface.Create(new SKImageInfo(width, height)))
{
//get the drawing canvas of the surface
var canvas = tempSurface.Canvas;
//set background color
canvas.Clear(SKColors.Transparent);
//go through each image and draw it on the final image
int offset = 0;
int offsetTop = 0;
canvas.DrawBitmap(bitmap, SKRect.Create(offset, offsetTop, bitmap.Width, bitmap.Height));
offsetTop = offsetTop > 0 ? 0 : bitmap.Height / 2;
offset += (int)(bitmap.Width / 1.6);
SKPaint textPaint = new SKPaint
{
Color = LabelColor,
TextSize = TextFontSize * (float)DisplayScaleFactor,
TextAlign = SKTextAlign.Center,
Typeface = SKTypeface.FromFamilyName("Segoe UI", SKTypefaceStyle.Normal)
};
SKPaint thinLinePaint = new SKPaint
{
Style = SKPaintStyle.Stroke,
Color = LineColor,
StrokeWidth = 2 * (float)DisplayScaleFactor
};
int displayLength = DisplayLength;
//1/5 to 1/10 of image
//IMPORTANT:length is calculated without display scale factor
int length = GetScreenDrawLength(DisplayLength);
int left = 16;
var x = left + (int)(length / 2.0);
var y = 25;//(int)height - 20 * (float)DisplayScaleFactor;
// Display text
canvas.DrawText($@"{displayLength:0} {ScaleUnit}", x, y, textPaint);
// Display thick line
float scaleFactor = (float)DisplayScaleFactor;
canvas.DrawLine(left, 5 * scaleFactor, left, 20 * scaleFactor, thinLinePaint); //left
canvas.DrawLine(left + 2, 15 * scaleFactor, left + length - 2, 15 * scaleFactor, thinLinePaint); //middle
canvas.DrawLine(left + length, 5 * scaleFactor, left + length, 20 * scaleFactor, thinLinePaint); //right
// return the surface as a manageable image
finalImage = tempSurface.Snapshot();
}
//return the image that was just drawn
return(finalImage);
}
finally
{
bitmap.Dispose();
}
}
