public static SKImage SensorTitle(List <SensorReading> readings, SKColor readingColor)
{
var latestReading = readings.OrderByDescending(x => x.ReadingDateTime).First();
var fitSize =
TextHelpers.AutoFitRichStringWidth(
$"{latestReading.ReadingValue:0.0} - {latestReading.ReadingDateTime:M/dd HH}",
"Arial", 360, 40);
var titleRichString = new RichString()
.FontFamily("Arial")
.TextColor(SKColors.White)
.FontSize(fitSize)
.TextColor(readingColor)
.Add($"{latestReading.ReadingValue:0.0}")
.TextColor(SKColors.Gray)
.Add(" - ")
.TextColor(SKColors.White)
.Add($"{latestReading.ReadingTag}");
var titleChartImage = new SKImageInfo(400, 50);
var titleChartSurface = SKSurface.Create(titleChartImage);
var titleChartCanvas = titleChartSurface.Canvas;
var titleLeftStart = (400 - titleRichString.MeasuredWidth) / 2;
titleRichString.Paint(titleChartCanvas, new SKPoint(titleLeftStart, 10));
titleChartCanvas.Save();
return(titleChartSurface.Snapshot());
}
private void OnPainting(object sender, SKPaintSurfaceEventArgs e)
{
var surface = e.Surface;
var canvas = surface.Canvas;
canvas.Clear(SKColors.Transparent);
canvas.Scale(e.Info.Width / (float)Width);
richString.Paint(canvas);
}
public static void DrawItem(SKCanvas canvas, Item item, Lang lang, SKRect rect)
{
Console.Out.WriteLine($"[{lang}] {item.name.GetText(lang)}".AsSpan());
DrawItemBackground(canvas, rect);
SKRect padded = new(rect.Left + itemPadding, rect.Top + itemPadding, rect.Right - itemPadding, rect.Bottom);
float imageHeight = padded.Height * 0.4f;
float nameHeight = padded.Height * 0.2f;
float descHeight = padded.Height * 0.4f;
SKRect imageRect = crect(padded.Left, padded.Top, padded.Width, imageHeight);
SKRect nameRect = crect(padded.Left + 3, padded.Top + imageHeight, padded.Width - 5, nameHeight);
SKRect descRect = crect(padded.Left + 3, padded.Top + imageHeight + nameHeight, padded.Width - 5, descHeight);
var scaled = item.GetScaledBitmap(imageRect);
if (scaled != null)
{
var imageDestRect = CalculateDisplayRect(imageRect, scaled, BitmapAlignment.Start, BitmapAlignment.Center);
canvas.DrawBitmap(scaled, imageDestRect.Left + 5, imageDestRect.Top);
}
#region Draw Name
RichString name = new RichString()
{
MaxWidth = nameRect.Width,
DefaultStyle = nameStyle,
}.Add(item.name.GetText(lang));
name.MaxLines = 1;
name.Paint(canvas, new SKPoint(nameRect.Left, nameRect.Top + 4), paintOptions);
#endregion Draw Name
RichString desc = new RichString()
{
MaxWidth = nameRect.Width,
MaxHeight = null,
DefaultStyle = descStyle,
}.Add(item.description.GetText(lang));
desc.MaxLines = 20;
desc.Paint(canvas, new SKPoint(descRect.Left, descRect.Top + 1), paintOptions);
}
public static void DrawLabel(SKCanvas canvas, MetaType metaType, Lang lang, SKRect rect)
{
var lineR = rect;
lineR.Inflate(-(canvasMaxWidth * 0.8f), -(itemMargin * 2.4f));
//top
//canvas.DrawLine(new SKPoint(lineR.Left, lineR.Top), new SKPoint(lineR.Right, lineR.Top), labelLine);
//bottom
canvas.DrawLine(new SKPoint(lineR.Left, lineR.Bottom), new SKPoint(lineR.Right, lineR.Bottom), labelLine);
string labelName = "- " + GetMetaTypeLabel(lang, metaType) + " -";
RichString desc = new RichString()
{
DefaultStyle = labelStyle,
MaxLines = 1,
}.Add(labelName);
const int offsetY = 3;
int ori = canvas.SaveLayer(labelPaint);
desc.Paint(canvas, new SKPoint(rect.MidX - desc.MeasuredWidth / 2, rect.MidY - desc.MeasuredHeight / 2 - offsetY), paintOptions);
canvas.RestoreToCount(ori);
}
void OnRender(SKCanvas canvas)
{
canvas.Clear(new SKColor(0xFFFFFFFF));
float canvasWidth = canvas.LocalClipBounds.Width;
float canvasHeight = canvas.LocalClipBounds.Height;
float?height = (float)(canvasHeight - margin * 2);
float?width = (float)(canvasWidth - margin * 2);
if (!_useMaxHeight)
{
height = null;
}
if (!_useMaxWidth)
{
width = null;
}
using (var gridlinePaint = new SKPaint()
{
Color = new SKColor(0x20000000), StrokeWidth = 1
})
{
canvas.DrawLine(new SKPoint(margin, 0), new SKPoint(margin, (float)canvasHeight), gridlinePaint);
if (width.HasValue)
{
canvas.DrawLine(new SKPoint(margin + width.Value, 0), new SKPoint(margin + width.Value, (float)canvasHeight), gridlinePaint);
}
canvas.DrawLine(new SKPoint(0, margin), new SKPoint((float)canvasWidth, margin), gridlinePaint);
if (height.HasValue)
{
canvas.DrawLine(new SKPoint(0, margin + height.Value), new SKPoint((float)canvasWidth, margin + height.Value), gridlinePaint);
}
}
_richString.MaxWidth = width;
_richString.MaxHeight = height;
var state = $"Measured: {_richString.MeasuredWidth} x {_richString.MeasuredHeight} Lines: {_richString.LineCount} Truncated: {_richString.Truncated} Length: {_richString.MeasuredLength} Revision: {_richString.Revision}";
canvas.DrawText(state, margin, 20, new SKPaint()
{
Typeface = SKTypeface.FromFamilyName("Arial"),
TextSize = 12,
IsAntialias = true,
});
state = $"Hit Test: Over {_htr.OverCodePointIndex} Line {_htr.OverLine}. Closest: {_htr.ClosestCodePointIndex} Line {_htr.ClosestLine}";
canvas.DrawText(state, margin, 40, new SKPaint()
{
Typeface = SKTypeface.FromFamilyName("Arial"),
TextSize = 12,
IsAntialias = true,
});
var options = new TextPaintOptions()
{
SelectionColor = new SKColor(0x60FF0000),
};
if (_htr.OverCodePointIndex >= 0)
{
options.Selection = new TextRange(_htr.OverCodePointIndex, _htr.OverCodePointIndex + 1);
}
_richString.Paint(canvas, new SKPoint(margin, margin), options);
if (_htr.ClosestCodePointIndex >= 0)
{
var ci = _richString.GetCaretInfo(new CaretPosition(_htr.ClosestCodePointIndex, false));
using (var paint = new SKPaint()
{
Color = new SKColor(0xFF000000),
IsStroke = true,
IsAntialias = true,
StrokeWidth = 1,
})
{
var rect = ci.CaretRectangle;
rect.Offset(margin, margin);
canvas.DrawLine(rect.Right, rect.Top, rect.Left, rect.Bottom, paint);
}
}
}