void drawLine()
{
var canvas = new CommandBufferCanvas(this._renderTexture, Window.instance.devicePixelRatio,
this._meshPool);
var paint = new Paint {
color = new Color(0xFFFF0000),
style = PaintingStyle.stroke,
strokeWidth = 10,
shader = Gradient.linear(new Offset(10, 10), new Offset(180, 180), new List <Color>()
{
Colors.red, Colors.green, Colors.yellow
}, null, TileMode.clamp)
};
canvas.drawLine(
new Offset(10, 20),
new Offset(50, 20),
paint);
canvas.drawLine(
new Offset(10, 10),
new Offset(100, 100),
paint);
canvas.drawLine(
new Offset(10, 10),
new Offset(10, 50),
paint);
canvas.drawLine(
new Offset(40, 10),
new Offset(90, 10),
paint);
canvas.drawArc(Unity.UIWidgets.ui.Rect.fromLTWH(200, 200, 100, 100), Mathf.PI / 4,
-Mathf.PI / 2 + Mathf.PI * 4 - 1, true, paint);
paint.maskFilter = MaskFilter.blur(BlurStyle.normal, 1);
paint.strokeWidth = 4;
canvas.drawLine(
new Offset(40, 20),
new Offset(120, 190),
paint);
canvas.scale(3);
TextBlob textBlob = new TextBlob("This is a text blob", 0, 19, new Vector2d[] {
new Vector2d(10, 0),
new Vector2d(20, 0),
new Vector2d(30, 0),
new Vector2d(40, 0),
new Vector2d(50, 0),
new Vector2d(60, 0),
new Vector2d(70, 0),
new Vector2d(80, 0),
new Vector2d(90, 0),
new Vector2d(100, 0),
new Vector2d(110, 0),
new Vector2d(120, 0),
new Vector2d(130, 0),
new Vector2d(140, 0),
new Vector2d(150, 0),
new Vector2d(160, 0),
new Vector2d(170, 0),
new Vector2d(180, 0),
new Vector2d(190, 0),
}, Unity.UIWidgets.ui.Rect.fromLTWH(0, 0, 200, 50), new TextStyle());
canvas.drawTextBlob(textBlob, new Offset(100, 100), paint);
canvas.drawLine(
new Offset(10, 30),
new Offset(10, 60),
new Paint()
{
style = PaintingStyle.stroke, strokeWidth = 0.1f
});
canvas.drawLine(
new Offset(20, 30),
new Offset(20, 60),
new Paint()
{
style = PaintingStyle.stroke, strokeWidth = 0.333f
});
canvas.flush();
}
void drawLine()
{
var canvas = new CommandBufferCanvas(this._renderTexture, Window.instance.devicePixelRatio,
this._meshPool);
var paint = new Paint {
color = new Color(0xFFFF0000),
style = PaintingStyle.stroke,
strokeWidth = 10,
shader = Gradient.linear(new Offset(10, 10), new Offset(180, 180), new List <Color>()
{
Colors.red, Colors.green, Colors.yellow
}, null, TileMode.clamp)
};
canvas.drawLine(
new Offset(10, 20),
new Offset(50, 20),
paint);
canvas.drawLine(
new Offset(10, 10),
new Offset(100, 100),
paint);
canvas.drawLine(
new Offset(10, 10),
new Offset(10, 50),
paint);
canvas.drawLine(
new Offset(40, 10),
new Offset(90, 10),
paint);
canvas.drawArc(Unity.UIWidgets.ui.Rect.fromLTWH(200, 200, 100, 100), Mathf.PI / 4,
-Mathf.PI / 2 + Mathf.PI * 4 - 1, true, paint);
paint.maskFilter = MaskFilter.blur(BlurStyle.normal, 1);
paint.strokeWidth = 4;
canvas.drawLine(
new Offset(40, 20),
new Offset(120, 190),
paint);
canvas.scale(3);
TextBlobBuilder builder = new TextBlobBuilder();
string text = "This is a text blob";
builder.setBounds(new Rect(-10, -20, 200, 50));
builder.setPositionXs(new float[] {
10, 20, 30, 40, 50, 60, 70, 80, 90, 100,
110, 120, 130, 140, 150, 160, 170, 180, 190
});
builder.allocRunPos(new TextStyle(), text, 0, text.Length);
var textBlob = builder.make();
canvas.drawTextBlob(textBlob, new Offset(100, 100), new Paint {
color = Colors.black,
maskFilter = MaskFilter.blur(BlurStyle.normal, 5),
});
canvas.drawTextBlob(textBlob, new Offset(100, 100), paint);
canvas.drawLine(
new Offset(10, 30),
new Offset(10, 60),
new Paint()
{
style = PaintingStyle.stroke, strokeWidth = 0.1f
});
canvas.drawLine(
new Offset(20, 30),
new Offset(20, 60),
new Paint()
{
style = PaintingStyle.stroke, strokeWidth = 0.333f
});
canvas.flush();
}
public override void debugPaint(PaintingContext context, Offset offset)
{
D.assert(() => {
if (D.debugPaintSizeEnabled)
{
float strokeWidth = Mathf.Min(4.0f, geometry.paintExtent / 30.0f);
Paint paint = new Paint();
paint.color = new Color(0xFF33CC33);
paint.strokeWidth = strokeWidth;
paint.style = PaintingStyle.stroke;
paint.maskFilter = MaskFilter.blur(BlurStyle.solid, strokeWidth);
float arrowExtent = geometry.paintExtent;
float padding = Mathf.Max(2.0f, strokeWidth);
Canvas canvas = context.canvas;
canvas.drawCircle(
offset.translate(padding, padding),
padding * 0.5f,
paint
);
switch (constraints.axis)
{
case Axis.vertical:
canvas.drawLine(
offset,
offset.translate(constraints.crossAxisExtent, 0.0f),
paint
);
_debugDrawArrow(
canvas,
paint,
offset.translate(constraints.crossAxisExtent * 1.0f / 4.0f, padding),
offset.translate(constraints.crossAxisExtent * 1.0f / 4.0f,
(arrowExtent - padding)),
constraints.normalizedGrowthDirection
);
_debugDrawArrow(
canvas,
paint,
offset.translate(constraints.crossAxisExtent * 3.0f / 4.0f, padding),
offset.translate(constraints.crossAxisExtent * 3.0f / 4.0f,
(arrowExtent - padding)),
constraints.normalizedGrowthDirection
);
break;
case Axis.horizontal:
canvas.drawLine(
offset,
offset.translate(0.0f, constraints.crossAxisExtent),
paint
);
_debugDrawArrow(
canvas,
paint,
offset.translate(padding, constraints.crossAxisExtent * 1.0f / 4.0f),
offset.translate((arrowExtent - padding),
constraints.crossAxisExtent * 1.0f / 4.0f),
constraints.normalizedGrowthDirection
);
_debugDrawArrow(
canvas,
paint,
offset.translate(padding, constraints.crossAxisExtent * 3.0f / 4.0f),
offset.translate((arrowExtent - padding),
constraints.crossAxisExtent * 3.0f / 4.0f),
constraints.normalizedGrowthDirection
);
break;
}
}
return(true);
});
}
