protected override void OnDraw(Android.Graphics.Canvas canvas)
{
var linearGradient = new Styles.Color.LinearGradient(
new IRgb[] { ColorSwatches.FlatMint, ColorSwatches.FlatBlue },
45
);
var radialGradient = new Styles.Color.RadialGradient(
new IRgb[] { ColorSwatches.FlatMint, ColorSwatches.FlatBlue },
.5f, .5f
);
var ellipticalGradient = new EllipticalGradient(
new IRgb[] { ColorSwatches.FlatMint, ColorSwatches.FlatBlue, ColorSwatches.DeepPurple },
.5f, .5f
);
ellipticalGradient.SetScale(1f, 2f);
ellipticalGradient.Rotation = 45;
var bounds = canvas.ClipBounds;
var shader = ellipticalGradient.Draw(new RectF(bounds.Left, bounds.Top, bounds.Right, bounds.Bottom));
var paint = new Paint();
paint.SetShader(shader);
canvas.DrawPaint(paint);
}
protected override void OnDraw(Canvas canvas)
{
base.OnDraw(canvas);
float middle = canvas.Width * (float)_position;
canvas.DrawPaint(_negativePaint);
canvas.DrawRect(0, 0, middle, canvas.Height, _positivePaint);
}
protected override void OnDraw(Canvas canvas)
{
base.OnDraw(canvas);
var paint = new Paint
{
Color = new Color(45, 45, 45)
};
canvas.DrawPaint(paint);
DrawStopwatch(canvas);
DrawSecondsHand(canvas);
DrawMinutesHand(canvas);
}
protected override void DispatchDraw(Android.Graphics.Canvas canvas)
{
// Draw interior shadow
canvas.Save();
canvas.ClipRect(0, 0, Width, Height);
canvas.DrawPaint(shadow);
canvas.Restore();
base.DispatchDraw(canvas);
// Draw custom list separator
canvas.Save();
canvas.ClipRect(0, Height - 2, Width, Height);
canvas.DrawColor(Android.Graphics.Color.Rgb(LightTone, LightTone, LightTone));
canvas.Restore();
}
void OnElementSizeChanged(object sender, EventArgs e)
{
var elem = sender as View;
if (elem == null)
return;
using (var imageBitmap = Bitmap.CreateBitmap((int)elem.Width, (int)elem.Height, Bitmap.Config.Argb8888))
using (var canvas = new Canvas(imageBitmap))
using (var gradient = new RadialGradient(0, 250, 1000, currentElement.StartColor.ToAndroid(), currentElement.EndColor.ToAndroid(), Shader.TileMode.Clamp))
using (var paint = new Paint() { Dither = true })
{
paint.SetShader(gradient);
canvas.DrawPaint(paint);
Container.Background = new BitmapDrawable(imageBitmap);
}
}
protected override void OnDraw(Canvas c)
{
Init(c);
_p.SetStyle (Paint.Style.Fill);
_p.Color = Color.White;
c.DrawPaint(_p);
float scale = (float) _cat.Width / (float) _cat.Height;
int new_height = c.Height * 3 / 4;
int new_width = (int) (new_height * scale);
c.DrawBitmap(
_cat,
new Rect(0, 0, _cat.Width, _cat.Height),
new Rect(0, c.Width / 4, new_width, new_height + c.Width / 4),
//new Rect(0, (int) (c.Height-new_height), (int) new_width, (int) c.Height),
_p
);
foreach (var purr in _purrs) {
purr.Render(c, _p);
}
}
public AndroidRepresentationProvider()
{
RegisterHandler <AG.Bitmap> (GraphicsExtensions.RemoteRepresentation);
RegisterHandler <AG.Color> (agColor => new Representation(
new Color(
agColor.R / 255f,
agColor.G / 255f,
agColor.B / 255f,
agColor.A / 255f),
true));
RegisterHandler <AG.Paint> (agPaint => {
var cBitmap = AG.Bitmap.CreateBitmap(50, 50, AG.Bitmap.Config.Argb8888);
try {
using (var canvas = new AG.Canvas(cBitmap)) {
canvas.DrawPaint(agPaint);
return(cBitmap.RemoteRepresentation());
}
} finally {
cBitmap.Recycle();
}
});
RegisterHandler <AL.Location> (LocationExtensions.RemoteRepresentation);
}
protected override void OnDraw(Android.Graphics.Canvas canvas)
{
base.OnDraw(canvas);
// Fill the background
canvas.DrawPaint(mBackgroundPaint);
// Test Text
canvas.Save();
var textWidth = mTextPaint.MeasureText("Hello");
Rect textBounds = new Rect();
mTextPaint.GetTextBounds("Hello", 0, 1, textBounds);
canvas.DrawText("Hello", canvas.Width / 2 - textWidth / 2, canvas.Height / 2 - textBounds.Height() / 2, mTextPaint);
textWidth = mTextPaint.MeasureText("World");
textBounds = new Rect();
mTextPaint.GetTextBounds("World", 0, 1, textBounds);
mTextPaint.Color = Color.Green;
canvas.DrawText("World", (canvas.Width / 2 - textWidth / 2) + 100, (canvas.Height / 2 - textBounds.Height() / 2) + 100, mTextPaint);
canvas.Restore();
foreach (Box box in mBoxes)
{
float left = Math.Min(box.Origin.X, box.Current.X);
float right = Math.Max(box.Origin.X, box.Current.X);
float top = Math.Min(box.Origin.Y, box.Current.Y);
float bottom = Math.Max(box.Origin.Y, box.Current.Y);
canvas.Save();
canvas.Rotate(box.Rotation, (box.Origin.X + box.Current.X) / 2, (box.Origin.Y + box.Current.Y) / 2);
canvas.DrawRect(left, top, right, bottom, mBoxPaint);
canvas.Restore();
}
}
protected override void OnDraw (Canvas canvas)
{
base.OnDraw (canvas);
// Clear screen to pink.
paint.Color = new Color (255, 204, 204);
canvas.DrawPaint (paint);
// Overall transforms to shift (0, 0) to center and scale.
canvas.Translate (this.Width / 2, this.Height / 2);
float scale = Math.Min (this.Width, this.Height) / 2.0f / 100;
canvas.Scale (scale, scale);
// Attributes for tick marks.
paint.Color = Color.Black;
paint.StrokeCap = Paint.Cap.Round;
paint.SetStyle (Paint.Style.Stroke);
// Set line dash to draw tick marks for every minute.
paint.StrokeWidth = 3;
paint.SetPathEffect (minuteTickDashEffect);
canvas.DrawPath (tickMarks, paint);
// Set line dash to draw tick marks for every hour.
paint.StrokeWidth = 6;
paint.SetPathEffect (hourTickDashEffect);
canvas.DrawPath (tickMarks, paint);
// Set attributes common to all clock hands.
Color strokeColor = Color.Black;
Color fillColor = Color.Blue;
paint.StrokeWidth = 2;
paint.SetPathEffect (null);
// Draw hour hand.
canvas.Save ();
canvas.Rotate (this.hourAngle);
paint.Color = fillColor;
paint.SetStyle (Paint.Style.Fill);
canvas.DrawPath (hourHand, paint);
paint.Color = strokeColor;
paint.SetStyle (Paint.Style.Stroke);
canvas.DrawPath (hourHand, paint);
canvas.Restore ();
// Draw minute hand.
canvas.Save ();
canvas.Rotate (this.minuteAngle);
paint.Color = fillColor;
paint.SetStyle (Paint.Style.Fill);
canvas.DrawPath (minuteHand, paint);
paint.Color = strokeColor;
paint.SetStyle (Paint.Style.Stroke);
canvas.DrawPath (minuteHand, paint);
canvas.Restore ();
// Draw second hand.
canvas.Save ();
canvas.Rotate (this.secondAngle);
paint.Color = strokeColor;
paint.SetStyle (Paint.Style.Stroke);
canvas.DrawPath (secondHand, paint);
canvas.Restore ();
}
