/// <summary>
/// This methods creates a Drawable of the main box control
/// </summary>
/// <param name="boxColour">Xamarin.Forms.Color: Colour of the box to be drawn</param>
/// <param name="cornerRadius">CornerRadius: Collection of the radii of the corners of the box</param>
/// <param name="boxBorderColour">Xamarin.Forms.Color: Xamarin.Forms.Color: Colour of the box border</param>
/// <param name="boxBorderThickness">Double: Thickness of the box border</param>
/// <returns>GradientDrawable</returns>
private GradientDrawable CreateBox(XFColor boxColour, CornerRadius cornerRadius, XFColor boxBorderColour, double boxBorderThickness, ForcedBoxShape forcedBoxShape)
{
// Create Box
GradientDrawable box = new GradientDrawable();
box.SetShape(ShapeType.Rectangle);
box.SetColor(boxColour.ToAndroid());
box.SetStroke((int)boxBorderThickness, boxBorderColour.ToAndroid());
// Get Rectangle area to use for the main box and set the bounds of the drawable
Rect rect = new Rect();
GetDrawingRect(rect);
if (forcedBoxShape != ForcedBoxShape.Default)
{
rect = GetCenteredSquareRect(rect);
if (forcedBoxShape == ForcedBoxShape.Circle)
{
// if its a circle, force all the corner radii to be equal to half the width
box.SetCornerRadius(rect.Width() / 2);
}
else
{
box.SetCornerRadii(new float[] { (float)cornerRadius.TopLeft, (float)cornerRadius.TopLeft,
(float)cornerRadius.TopRight, (float)cornerRadius.TopRight,
(float)cornerRadius.BottomRight, (float)cornerRadius.BottomRight,
(float)cornerRadius.BottomLeft, (float)cornerRadius.BottomLeft });
}
}
else
{
box.SetCornerRadii(new float[] { (float)cornerRadius.TopLeft, (float)cornerRadius.TopLeft,
(float)cornerRadius.TopRight, (float)cornerRadius.TopRight,
(float)cornerRadius.BottomRight, (float)cornerRadius.BottomRight,
(float)cornerRadius.BottomLeft, (float)cornerRadius.BottomLeft });
}
box.Bounds = rect;
return(box);
}
/// <summary>
/// This methods creates a Drawable of the main box control shadow
/// </summary>
/// <param name="shadowColour">Xamarin.Forms.Color: </param>
/// <param name="cornerRadius">CornerRadius: Collection of the radii of the corners of the box</param>
/// <param name="boxBorderThickness">Double: Thickness of the box border</param>
/// <param name="xDeltaPosition">Double: X translation of shadow in relation to box</param>
/// <param name="yDeltaPosition">Double: Y translation of shadow in relation to box</param>
/// <param name="boxColourAlpha">Double: Alpha (opacity) of the box colour</param>
/// <param name="boxBorderAlpha">Double: Alpha (opacity) of the box border colour</param>
/// <returns>GradientDrawable</returns>
private GradientDrawable CreateShadow(XFColor shadowColour, CornerRadius cornerRadius, double boxBorderThickness,
double xDeltaPosition, double yDeltaPosition, double boxColourAlpha, double boxBorderAlpha, ForcedBoxShape forcedBoxShape)
{
GradientDrawable shadow = new GradientDrawable();
shadow.SetShape(ShapeType.Rectangle);
//Adjust the shadow color to account for any transparency in the box.
XFColor shadowColor = new XFColor(shadowColour.R, shadowColour.G, shadowColour.B, shadowColour.A * boxColourAlpha);
XFColor shadowBorderColor = new XFColor(shadowColour.R, shadowColour.G, shadowColour.B, shadowColour.A * boxBorderAlpha);
shadow.SetColor(shadowColor.ToAndroid());
shadow.SetStroke((int)boxBorderThickness, shadowBorderColor.ToAndroid());
// Get Rectangle area to use for the shadow, offset it, and set the bounds of the drawable
Rect rectS = new Rect();
GetDrawingRect(rectS);
if (forcedBoxShape != ForcedBoxShape.Default)
{
rectS = GetCenteredSquareRect(rectS);
if (forcedBoxShape == ForcedBoxShape.Circle)
{
// if its a circle, force all the corner radii to be equal to half the width
shadow.SetCornerRadius(rectS.Width() / 2);
}
else
{
shadow.SetCornerRadii(new float[] { (float)cornerRadius.TopLeft, (float)cornerRadius.TopLeft,
(float)cornerRadius.TopRight, (float)cornerRadius.TopRight,
(float)cornerRadius.BottomRight, (float)cornerRadius.BottomRight,
(float)cornerRadius.BottomLeft, (float)cornerRadius.BottomLeft });
}
}
else
{
shadow.SetCornerRadii(new float[] { (float)cornerRadius.TopLeft, (float)cornerRadius.TopLeft,
(float)cornerRadius.TopRight, (float)cornerRadius.TopRight,
(float)cornerRadius.BottomRight, (float)cornerRadius.BottomRight,
(float)cornerRadius.BottomLeft, (float)cornerRadius.BottomLeft });
}
rectS.Offset((int)System.Math.Round(xDeltaPosition), (int)System.Math.Round(yDeltaPosition));
shadow.Bounds = rectS;
return(shadow);
}
