protected void PrerollChildren(PrerollContext context, SKMatrix child_matrix, ref SKRect child_paint_bounds)
{
foreach (var layer in layers_)
{
PrerollContext child_context = context;
layer.Preroll(child_context, child_matrix);
if (layer.needs_system_composite())
{
set_needs_system_composite(true);
}
child_paint_bounds.Union(layer.paint_bounds());
}
}
protected void PrerollChildren(PrerollContext context, SKMatrix child_matrix, SKRect child_paint_bounds)
{
foreach (var layer in layers_)
{
//C++ TO C# CONVERTER TODO TASK: The following line was determined to contain a copy constructor call - this should be verified and a copy constructor should be created:
//ORIGINAL LINE: PrerollContext child_context = *context;
PrerollContext child_context = context;
layer.Preroll(child_context, child_matrix);
if (layer.needs_system_composite())
{
set_needs_system_composite(true);
}
child_paint_bounds.Union(layer.paint_bounds());
}
}
protected virtual void CreateTransformedBounds()
{
foreach (var drawable in ChildrenDrawables)
{
if (TransformedBounds.IsEmpty)
{
TransformedBounds = drawable.TransformedBounds;
}
else
{
if (!drawable.TransformedBounds.IsEmpty)
{
TransformedBounds = SKRect.Union(TransformedBounds, drawable.TransformedBounds);
}
}
}
}
public static void DrawCaptionLabels(this SKCanvas canvas, string label, SKColor labelColor, TextDirection textDirection, float labelTextSpacing, string value, SKColor valueColor, float textSize, SKPoint point, SKTextAlign horizontalAlignment, SKTypeface typeface, out SKRect totalBounds)
{
var hasLabel = !string.IsNullOrEmpty(label);
var hasValueLabel = !string.IsNullOrEmpty(value);
totalBounds = new SKRect();
if (hasLabel || hasValueLabel)
{
var hasOffset = hasLabel && hasValueLabel;
var captionMargin = textSize * 0.60f;
var space = hasOffset ? captionMargin : 0;
if (hasLabel)
{
using (var paint = new SKPaint
{
TextSize = textSize,
IsAntialias = true,
Color = labelColor,
IsStroke = false,
TextAlign = horizontalAlignment,
Typeface = typeface
})
{
var bounds = new SKRect();
var text = label;
paint.MeasureText(text, ref bounds);
var y = point.Y - ((bounds.Top + bounds.Bottom) / 2) - space;
RichString rs;
if (typeface != null)
{
rs = new RichString()
.FontFamily(typeface.FamilyName)
.FontSize(textSize)
.LetterSpacing(labelTextSpacing)
.TextColor(labelColor)
.TextDirection(textDirection)
.Add(text);
}
else
{
rs = new RichString()
.FontSize(textSize)
.LetterSpacing(labelTextSpacing)
.TextColor(labelColor)
.TextDirection(textDirection)
.Add(text);
}
rs.Paint(canvas, new SKPoint(point.X, y), new TextPaintOptions
{
IsAntialias = true,
LcdRenderText = true
});
var labelBounds = GetAbsolutePositionRect(point.X, y, bounds, horizontalAlignment);
totalBounds = labelBounds.Standardized;
}
}
if (hasValueLabel)
{
using (var paint = new SKPaint()
{
TextSize = textSize,
IsAntialias = true,
FakeBoldText = true,
Color = valueColor,
IsStroke = false,
TextAlign = horizontalAlignment,
Typeface = typeface
})
{
var bounds = new SKRect();
var text = value;
paint.MeasureText(text, ref bounds);
var y = point.Y - ((bounds.Top + bounds.Bottom) / 2) + space;
canvas.DrawText(text, point.X, y, paint);
var valueBounds = GetAbsolutePositionRect(point.X, y, bounds, horizontalAlignment);
if (totalBounds.IsEmpty)
{
totalBounds = valueBounds;
}
else
{
totalBounds.Union(valueBounds);
}
}
}
}
}
public static void DrawCaptionLabels(this SKCanvas canvas, string label, SKColor labelColor, string value, SKColor valueColor, float textSize, SKPoint point, SKTextAlign horizontalAlignment, SKTypeface typeface, out SKRect totalBounds)
{
var hasLabel = !string.IsNullOrEmpty(label);
var hasValueLabel = !string.IsNullOrEmpty(value);
totalBounds = new SKRect();
if (hasLabel || hasValueLabel)
{
var hasOffset = hasLabel && hasValueLabel;
var captionMargin = textSize * 0.60f;
var space = hasOffset ? captionMargin : 0;
if (hasLabel)
{
using (var paint = new SKPaint
{
TextSize = textSize,
IsAntialias = true,
Color = labelColor,
IsStroke = false,
TextAlign = horizontalAlignment,
Typeface = typeface
})
{
var bounds = new SKRect();
var text = label;
paint.MeasureText(text, ref bounds);
var y = point.Y - ((bounds.Top + bounds.Bottom) / 2) - space;
canvas.DrawText(text, point.X, y, paint);
var labelBounds = GetAbsolutePositionRect(point.X, y, bounds, horizontalAlignment);
totalBounds = labelBounds.Standardized;
}
}
if (hasValueLabel)
{
using (var paint = new SKPaint()
{
TextSize = textSize,
IsAntialias = true,
FakeBoldText = true,
Color = valueColor,
IsStroke = false,
TextAlign = horizontalAlignment,
Typeface = typeface
})
{
var bounds = new SKRect();
var text = value;
paint.MeasureText(text, ref bounds);
var y = point.Y - ((bounds.Top + bounds.Bottom) / 2) + space;
canvas.DrawText(text, point.X, y, paint);
var valueBounds = GetAbsolutePositionRect(point.X, y, bounds, horizontalAlignment);
if (totalBounds.IsEmpty)
{
totalBounds = valueBounds.Standardized;
}
else
{
totalBounds.Union(valueBounds.Standardized);
}
}
}
}
}