//protected override void OnElementChanged(Xamarin.Forms.Platform.Android.ElementChangedEventArgs<Button> e)
//{
// base.OnElementChanged(e);
// if (e?.NewElement == null) return;
// Control.SetBackground(GetGradient());
//}
//public GradientDrawable GetGradient()
//{
// Android.Graphics.Color color = Element.BackgroundColor.ToAndroid();
// var gradient = new GradientDrawable(GradientDrawable.Orientation.BottomTop, new[]{
// Android.Graphics.Color.Black.ToArgb(), color.ToArgb(), Android.Graphics.Color.White.ToArgb()
// });
// gradient.SetAlpha(200);
// return gradient;
//}
public override void Draw(Canvas canvas)
{
//base.Draw(canvas);
Android.Graphics.Color color = Element.BackgroundColor.ToAndroid();
float[] segments = null;
var textGradient = new LinearGradient(0, Height / 3, 0, 2 * Height / 3,
new int[]
{
Android.Graphics.Color.Rgb(142, 123, 95),
Android.Graphics.Color.Black.ToArgb(),
},
segments,
Shader.TileMode.Mirror);
var textPaint = new Paint()
{
TextAlign = Paint.Align.Center,
TextSize = 50,
};
textPaint.SetShader(textGradient);
textPaint.SetShadowLayer(5f, 2f, 1f, Android.Graphics.Color.Black);
var gradient = new LinearGradient(0, 0, 0, Height,
new int[]
{
Android.Graphics.Color.White.ToArgb(),
color.ToArgb(),
Android.Graphics.Color.Black.ToArgb()
},
segments, Shader.TileMode.Clamp
);
var paint = new Paint();
paint.SetShader(gradient);
var rect = new RectF(Left, Top, Right, Bottom);
var borderPaint = new Paint();
borderPaint.SetShadowLayer(10f, 0, 0, Android.Graphics.Color.Black);
borderPaint.SetStyle(Paint.Style.Stroke);
var borderRect = new RectF(Left, Top, Right, Bottom);
canvas.DrawRect(rect, paint);
canvas.DrawRect(borderRect, borderPaint);
canvas.DrawText(Element.Text, Width / 2, 2 * Height / 3, textPaint);
}
public void background(Color c)
{
HostPaint.BgColor = c.ToArgb ();
}
public static Color ToColor(this Android.Graphics.Color androidColor)
{
return(Color.FromArgb(androidColor.ToArgb()));
}
public void set(double x, double y, Color c)
{
var bak = HostPaint.Color;
HostPaint.Color = c.ToArgb ();
Host.DrawPoint ((float) x, (float) y, HostPaint);
HostPaint.Color = bak;
}
private int[][] getPixelsSlow(Bitmap image)
{
int width = image.Width;
int height = image.Height;
int[][] result = new int[height][];
for (int row = 0; row < height; row++) {
result [row] = new int[width];
for (int col = 0; col < width; col++) {
int clr= image.GetPixel (col,row);
Color c = new Color (clr);
//Console.WriteLine ("{0} {1}",clr,c.ToString());
result [row] [col] = c.ToArgb ();
}
}
return result;
}
Paint GetOrCreateBrush( Color color )
{
int key = color.ToArgb();
Paint brush;
if( brushCache.TryGetValue( key, out brush ) )
return brush;
brush = new Paint();
brush.AntiAlias = true;
brush.Color = color;
brush.FilterBitmap = true;
brush.SetStyle( Paint.Style.FillAndStroke );
brushCache[key] = brush;
return brush;
}
private void HandleMarkerClick(object sender, GoogleMap.MarkerClickEventArgs e)
{
ClearMapOverlays ();
Marker marker = e.Marker;
int index = int.Parse (marker.Title);
extendedMap.pin_Clicked (index );
Android.Graphics.Color clrb = new Android.Graphics.Color (12,92,169,130);
Android.Graphics.Color clrr = new Android.Graphics.Color (204,27,39,130);
PolygonOptions polygonOptions = new PolygonOptions();
switch (index)
{
case 0:
CircleOptions circleOptions = new CircleOptions ();
circleOptions.InvokeCenter (new LatLng (extendedMap.pinDatas [index].lat, extendedMap.pinDatas [index].lng));
circleOptions.InvokeRadius (2000);
circleOptions.InvokeFillColor (clrb.ToArgb ());
circleOptions.InvokeStrokeColor (clrr.ToArgb ());
circle = map.AddCircle (circleOptions);
break;
case 1:
polygonOptions.Add(new LatLng(extendedMap.pinDatas[index].lat-0.01, extendedMap.pinDatas[index].lng+0.01));
polygonOptions.Add(new LatLng(extendedMap.pinDatas[index].lat+0.01, extendedMap.pinDatas[index].lng+0.01));
polygonOptions.Add(new LatLng(extendedMap.pinDatas[index].lat+0.01, extendedMap.pinDatas[index].lng-0.01));
polygonOptions.Add(new LatLng(extendedMap.pinDatas[index].lat-0.01, extendedMap.pinDatas[index].lng-0.01));
polygonOptions.InvokeFillColor (clrb.ToArgb());
polygonOptions.InvokeStrokeColor (clrr.ToArgb());
polygon = map.AddPolygon(polygonOptions);
break;
case 2:
polygonOptions.Add(new LatLng(extendedMap.pinDatas[index].lat-0.01, extendedMap.pinDatas[index].lng+0.01));
polygonOptions.Add(new LatLng(extendedMap.pinDatas[index].lat+0.01, extendedMap.pinDatas[index].lng+0.01));
polygonOptions.Add(new LatLng(extendedMap.pinDatas[index].lat+0.005, extendedMap.pinDatas[index].lng));
polygonOptions.Add(new LatLng(extendedMap.pinDatas[index].lat+0.02, extendedMap.pinDatas[index].lng-0.02));
polygonOptions.Add(new LatLng(extendedMap.pinDatas[index].lat-0.01, extendedMap.pinDatas[index].lng-0.01));
polygonOptions.InvokeFillColor (clrb.ToArgb());
polygonOptions.InvokeStrokeColor (clrr.ToArgb());
polygon = map.AddPolygon(polygonOptions);
break;
default:
CircleOptions circleOptions2 = new CircleOptions ();
circleOptions2.InvokeCenter (new LatLng (extendedMap.pinDatas [index].lat, extendedMap.pinDatas [index].lng));
circleOptions2.InvokeRadius (2000);
circleOptions2.InvokeFillColor (clrb.ToArgb ());
circleOptions2.InvokeStrokeColor (clrr.ToArgb ());
circle = map.AddCircle (circleOptions2);
break;
}
}
