protected override void OnDraw(ACanvas canvas)
{
if (Element == null)
{
return;
}
var pancake = Element as PancakeView;
SetClipChildren(true);
//Create path to clip the child
if (pancake.Sides != 4)
{
using (var path = DrawingExtensions.CreatePolygonPath(Width, Height, pancake.Sides, pancake.CornerRadius.TopLeft, pancake.OffsetAngle))
{
canvas.Save();
canvas.ClipPath(path);
}
}
else
{
using (var path = DrawingExtensions.CreateRoundedRectPath(Width, Height,
Context.ToPixels(pancake.CornerRadius.TopLeft),
Context.ToPixels(pancake.CornerRadius.TopRight),
Context.ToPixels(pancake.CornerRadius.BottomRight),
Context.ToPixels(pancake.CornerRadius.BottomLeft)))
{
canvas.Save();
canvas.ClipPath(path);
}
}
DrawBorder(canvas, pancake);
}
protected override void OnDraw(ACanvas canvas)
{
if (Element == null)
{
return;
}
var control = (PancakeView)Element;
SetClipChildren(true);
//Create path to clip the child
if (control.Sides != 4)
{
using (var path = ShapeUtils.CreatePolygonPath(Width, Height, control.Sides, control.CornerRadius.TopLeft, control.OffsetAngle))
{
canvas.Save();
canvas.ClipPath(path);
}
}
else
{
using (var path = ShapeUtils.CreateRoundedRectPath(Width, Height,
Context.ToPixels(control.CornerRadius.TopLeft),
Context.ToPixels(control.CornerRadius.TopRight),
Context.ToPixels(control.CornerRadius.BottomRight),
Context.ToPixels(control.CornerRadius.BottomLeft)))
{
canvas.Save();
canvas.ClipPath(path);
}
}
DrawBorder(canvas, control);
}
protected override void OnDraw(ACanvas canvas)
{
if (Element == null)
{
return;
}
var control = (CanvasView)Element;
SetClipChildren(true);
//Create path to clip the child
if (control.Sides != 4)
{
using (var path = PolygonUtils.GetPolygonCornerPath(Width, Height, control.Sides, control.CornerRadius.TopLeft, control.OffsetAngle))
{
canvas.Save();
canvas.ClipPath(path);
}
}
else
{
using (var path = new Path())
{
path.AddRoundRect(new RectF(0, 0, Width, Height), GetRadii(control), Path.Direction.Ccw);
canvas.Save();
canvas.ClipPath(path);
}
}
DrawBorder(canvas, control);
}
protected override bool DrawChild(ACanvas canvas, global::Android.Views.View child, long drawingTime)
{
if (this.Element == null)
{
return(false);
}
CorneredContentView control = (CorneredContentView)this.Element;
this.SetClipChildren(true);
//Create path to clip the child
using (Path path = new Path())
{
path.AddRoundRect(new RectF(0, 0, this.Width, this.Height), this.GetRadii(control), Path.Direction.Ccw);
canvas.Save();
canvas.ClipPath(path);
}
// Draw the child first so that the border shows up above it.
bool result = base.DrawChild(canvas, child, drawingTime);
canvas.Restore();
this.DrawBorder(canvas, control);
return(result);
}
protected override bool DrawChild(ACanvas canvas, global::Android.Views.View child, long drawingTime)
{
if (Element == null)
{
return(false);
}
var control = (PancakeView)Element;
SetClipChildren(true);
//Create path to clip the child
using (var path = new Path())
{
path.AddRoundRect(new RectF(0, 0, Width, Height), GetRadii(control), Path.Direction.Ccw);
canvas.Save();
canvas.ClipPath(path);
}
// Draw the child first so that the border shows up above it.
var result = base.DrawChild(canvas, child, drawingTime);
canvas.Restore();
DrawBorder(canvas, control);
return(result);
}
protected override bool DrawChild(Android.Graphics.Canvas canvas, Android.Views.View child, long drawingTime)
{
try {
var element = (RoundedImage)Element;
var radius = Math.Min(Width, Height) / 2;
var strokeWidth = 10;
radius -= strokeWidth / 2;
var path = new Path();
path.AddCircle(Width / 2, Height / 2, radius, Path.Direction.Ccw);
canvas.Save();
canvas.ClipPath(path);
var result = base.DrawChild(canvas, child, drawingTime);
canvas.Restore();
path = new Path();
path.AddCircle(Width / 2, Height / 2, radius, Path.Direction.Ccw);
var paint = new Paint();
paint.AntiAlias = true;
paint.StrokeWidth = (float)element.BorderWidth;
paint.SetStyle(Paint.Style.Stroke);
paint.Color = element.BorderColor.ToAndroid();
canvas.DrawPath(path, paint);
paint.Dispose();
path.Dispose();
return(result);
} catch (Exception ex) {
Console.WriteLine(ex.Message);
}
return(base.DrawChild(canvas, child, drawingTime));
}
protected override bool DrawChild(Canvas canvas, global::Android.Views.View child, long drawingTime)
{
try
{
var radius = Math.Min(Width, Height) / 2;
var strokeWidth = 10;
radius -= strokeWidth / 2;
//Create path to clip
var path = new Path();
path.AddCircle(Width / 2, Height / 2, radius, Path.Direction.Ccw);
canvas.Save();
canvas.ClipPath(path);
var result = base.DrawChild(canvas, child, drawingTime);
canvas.Restore();
// Create path for circle border
path = new Path();
path.AddCircle(Width / 2, Height / 2, radius, Path.Direction.Ccw);
var paint = new Paint();
paint.AntiAlias = true;
paint.StrokeWidth = 5;
paint.SetStyle(Paint.Style.Stroke);
paint.Color = global::Android.Graphics.Color.White;
canvas.DrawPath(path, paint);
//Properly dispose
paint.Dispose();
path.Dispose();
return result;
}
catch (Exception ex)
{
Console.WriteLine("Unable to create circle image: " + ex);
}
return base.DrawChild(canvas, child, drawingTime);
}
/// <summary>
///
/// </summary>
/// <param name="canvas"></param>
/// <param name="child"></param>
/// <param name="drawingTime"></param>
/// <returns></returns>
protected override bool DrawChild(Canvas canvas, Android.Views.View child, long drawingTime)
{
try
{
var radius = Math.Min(Width, Height) / 2;
var strokeWidth = ((CircleImage)Element).BorderThickness;
radius -= strokeWidth / 2;
var path = new Path();
path.AddCircle(Width / 2, Height / 2, radius, Path.Direction.Ccw);
canvas.Save();
canvas.ClipPath(path);
var paint = new Paint();
paint.AntiAlias = true;
paint.SetStyle(Paint.Style.Fill);
paint.Color = ((CircleImage)Element).FillColor.ToAndroid();
canvas.DrawPath(path, paint);
paint.Dispose();
var result = base.DrawChild(canvas, child, drawingTime);
canvas.Restore();
path = new Path();
path.AddCircle(Width / 2, Height / 2, radius, Path.Direction.Ccw);
var thickness = ((CircleImage)Element).BorderThickness;
if(thickness > 0.0f)
{
paint = new Paint();
paint.AntiAlias = true;
paint.StrokeWidth = thickness;
paint.SetStyle(Paint.Style.Stroke);
paint.Color = ((CircleImage)Element).BorderColor.ToAndroid();
canvas.DrawPath(path, paint);
paint.Dispose();
}
path.Dispose();
return result;
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine("Unable to create circle image: " + ex);
}
return base.DrawChild(canvas, child, drawingTime);
}
protected override bool DrawChild(Canvas canvas, View child, long drawingTime)
{
try
{
var radius = Math.Min(Width, Height) / 2;
var borderThickness = (float)((CircleImage)Element).BorderThickness;
int strokeWidth = 0;
if (borderThickness > 0)
{
var logicalDensity = Xamarin.Forms.Forms.Context.Resources.DisplayMetrics.Density;
strokeWidth = (int)Math.Ceiling(borderThickness * logicalDensity + .5f);
}
radius -= strokeWidth / 2;
var path = new Path();
path.AddCircle(Width / 2.0f, Height / 2.0f, radius, Path.Direction.Ccw);
canvas.Save();
canvas.ClipPath(path);
var paint = new Paint();
paint.AntiAlias = true;
paint.SetStyle(Paint.Style.Fill);
paint.Color = ((CircleImage)Element).FillColor.ToAndroid();
canvas.DrawPath(path, paint);
paint.Dispose();
var result = base.DrawChild(canvas, child, drawingTime);
canvas.Restore();
path = new Path();
path.AddCircle((float) Width / 2, (float) Height / 2, radius, Path.Direction.Ccw);
if (strokeWidth > 0.0f)
{
paint = new Paint {AntiAlias = true, StrokeWidth = strokeWidth};
paint.SetStyle(Paint.Style.Stroke);
paint.Color = ((CircleImage)Element).BorderColor.ToAndroid();
canvas.DrawPath(path, paint);
paint.Dispose();
}
path.Dispose();
return result;
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine("Unable to create circle image: " + ex);
}
return base.DrawChild(canvas, child, drawingTime);
}
/// <summary>
/// This method is called from the OnDraw of elements supporting rounded corners:
/// Border, Rectangle, Panel...
/// </summary>
private protected void AdjustCornerRadius(Android.Graphics.Canvas canvas, CornerRadius cornerRadius)
{
if (cornerRadius != CornerRadius.None)
{
var rect = new RectF(canvas.ClipBounds);
var clipPath = cornerRadius.GetOutlinePath(rect);
canvas.ClipPath(clipPath);
}
}
protected override bool DrawChild(ACanvas canvas, global::Android.Views.View child, long drawingTime)
{
if (Element == null)
{
return(false);
}
var pancake = Element as PancakeView;
SetClipChildren(true);
//Create path to clip the child
if (pancake.Sides != 4)
{
using (var path = DrawingExtensions.CreatePolygonPath(Width, Height, pancake.Sides, pancake.CornerRadius.TopLeft, pancake.OffsetAngle))
{
canvas.Save();
canvas.ClipPath(path);
}
}
else
{
using (var path = DrawingExtensions.CreateRoundedRectPath(Width, Height,
Context.ToPixels(pancake.CornerRadius.TopLeft),
Context.ToPixels(pancake.CornerRadius.TopRight),
Context.ToPixels(pancake.CornerRadius.BottomRight),
Context.ToPixels(pancake.CornerRadius.BottomLeft)))
{
canvas.Save();
canvas.ClipPath(path);
}
}
// Draw the child first so that the border shows up above it.
var result = base.DrawChild(canvas, child, drawingTime);
canvas.Restore();
DrawBorder(canvas, pancake);
return(result);
}
protected override bool DrawChild(ACanvas canvas, global::Android.Views.View child, long drawingTime)
{
if (Element == null)
{
return(false);
}
var control = (CanvasView)Element;
SetClipChildren(true);
//Create path to clip the child
if (control.Sides != 4)
{
using (var path = PolygonUtils.GetPolygonCornerPath(Width, Height, control.Sides, control.CornerRadius.TopLeft, control.OffsetAngle))
{
canvas.Save();
canvas.ClipPath(path);
}
}
else
{
using (var path = new Path())
{
path.AddRoundRect(new RectF(0, 0, Width, Height), GetRadii(control), Path.Direction.Ccw);
canvas.Save();
canvas.ClipPath(path);
}
}
// Draw the child first so that the border shows up above it.
var result = base.DrawChild(canvas, child, drawingTime);
canvas.Restore();
DrawBorder(canvas, control);
return(result);
}
/// <summary>
/// Redraws the child.
/// </summary>
protected override bool DrawChild(Canvas canvas, global::Android.Views.View child, long drawingTime)
{
try
{
var radius = (float)((RoundedImage)Element).BorderRadius;
var stroke = (float)((RoundedImage)Element).BorderThickness;
var delta = (float)stroke / 2.0f;
if (radius < 0)
{
radius = Math.Min(Width, Height) / 2.0f;
}
radius -= delta;
// Clip with rounded rect
var path = new Path();
path.AddRoundRect(new RectF(delta, delta, Width - stroke, Height - stroke),
radius, radius, Path.Direction.Ccw);
canvas.Save();
canvas.ClipPath(path);
path.Dispose();
var result = base.DrawChild(canvas, child, drawingTime);
canvas.Restore();
// Add stroke for smoother border
path = new Path();
path.AddRoundRect(new RectF(delta, delta, Width - stroke, Height - stroke),
radius, radius, Path.Direction.Ccw);
var paint = new Paint();
paint.AntiAlias = true;
paint.StrokeWidth = stroke;
paint.SetStyle(Paint.Style.Stroke);
paint.Color = ((RoundedImage)Element).BorderColor.ToAndroid();
canvas.DrawPath(path, paint);
paint.Dispose();
// Clean up
path.Dispose();
return result;
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine("Unable to create circle image: " + ex);
}
return base.DrawChild(canvas, child, drawingTime);
}
/// <Docs>The Canvas to which the View is rendered.</Docs>
/// <summary>
/// Draw the specified canvas.
/// </summary>
/// <param name="canvas">Canvas.</param>
public override void Draw (Canvas canvas)
{
try
{
var element = Element as RoundCornerView;
var cornerRadius = (float)element.CornerRadius*Resources.DisplayMetrics.Density;
// Paint rounded rect itself
canvas.Save();
var paint = new Paint();
paint.AntiAlias = true;
var strokeWidth = (((float)element.BorderWidth)*Resources.DisplayMetrics.Density);
paint.StrokeWidth = strokeWidth;
if(element.BackgroundColor != Xamarin.Forms.Color.Transparent)
{
paint.SetStyle(Paint.Style.Fill);
paint.Color = element.BackgroundColor.ToAndroid();
canvas.DrawRoundRect(new RectF(0, 0, Width, Height), cornerRadius, cornerRadius, paint);
}
if(element.BorderColor != Xamarin.Forms.Color.Transparent)
{
paint.SetStyle(Paint.Style.Stroke);
paint.Color = element.BorderColor.ToAndroid();
canvas.DrawRoundRect(new RectF(0, 0, Width, Height), cornerRadius, cornerRadius, paint);
}
//Properly dispose
paint.Dispose();
canvas.Restore();
// Create clip path
var path = new Path();
path.AddRoundRect(new RectF(0.0f + (strokeWidth/2), 0.0f + (strokeWidth/2),
Width - (strokeWidth/2), Height - (strokeWidth/2)), cornerRadius, cornerRadius, Path.Direction.Cw);
canvas.Save();
canvas.ClipPath(path);
// Do base drawing
for(var i=0; i<ChildCount; i++)
GetChildAt(i).Draw(canvas);
canvas.Restore();
path.Dispose();
}
catch (Exception)
{
}
}
protected override void OnDraw(ACanvas canvas)
{
if (Element != null)
{
var cornerRadius = Forms.Context.ToPixels(Element.CornerRadius);
using (var clipPath = new Path())
using (var pathDirection = Path.Direction.Cw) {
clipPath.AddRoundRect(new RectF(canvas.ClipBounds), cornerRadius, cornerRadius, Path.Direction.Cw);
canvas.ClipPath(clipPath);
}
}
base.OnDraw(canvas);
}
/// <summary>
/// Draw one child of this View Group.
/// </summary>
/// <param name="canvas">The canvas on which to draw the child</param>
/// <param name="child">Who to draw</param>
/// <param name="drawingTime">The time at which draw is occurring</param>
/// <returns>To be added.</returns>
/// <since version="Added in API level 1" />
/// <remarks><para tool="javadoc-to-mdoc">Draw one child of this View Group. This method is responsible for getting
/// the canvas in the right state. This includes clipping, translating so
/// that the child's scrolled origin is at 0, 0, and applying any animation
/// transformations.</para>
/// <para tool="javadoc-to-mdoc">
/// <format type="text/html">
/// <a href="http://developer.android.com/reference/android/view/ViewGroup.html#drawChild(android.graphics.Canvas, android.view.View, long)" target="_blank">[Android Documentation]</a>
/// </format>
/// </para></remarks>
protected override bool DrawChild(Canvas canvas, global::Android.Views.View child, long drawingTime)
{
if (this.Element.Aspect != Aspect.AspectFit)
{
return base.DrawChild(canvas, child, drawingTime);
}
using (var path = new Path())
{
path.AddCircle(Width / 2, Height / 2, (Math.Min(Width, Height) - 10) / 2, Path.Direction.Ccw);
canvas.Save();
canvas.ClipPath(path);
}
return base.DrawChild(canvas, child, drawingTime);
}
protected override bool DrawChild(Canvas canvas, View child, long drawingTime)
{
if(!ClipOutlines && Target != null)
return base.DrawChild(canvas, child, drawingTime);
var state = canvas.Save();
RevealPath.Reset();
RevealPath.AddCircle(CentreX, CentreY, getRadius(), Path.Direction.Cw);
canvas.ClipPath(RevealPath);
var isInvalid = base.DrawChild(canvas, child, drawingTime);
canvas.RestoreToCount(state);
return isInvalid;
}
protected override bool DrawChild(Canvas canvas, global::Android.Views.View child, long drawingTime)
{
try {
// Extract properties
var source = (CircularImage)Element;
var borderWidth = source.BorderWidth;
var borderColor = source.BorderColor.ToAndroid();
var radius = Math.Min(Width, Height) / 2;
var strokeWidth = 10;
radius -= strokeWidth / 2;
//Create path to clip
var path = new Path();
path.AddCircle(Width / 2, Height / 2, radius, Path.Direction.Ccw);
canvas.Save();
canvas.ClipPath(path);
var result = base.DrawChild(canvas, child, drawingTime);
canvas.Restore();
// Create path for circle border
path = new Path();
path.AddCircle(Width / 2, Height / 2, radius, Path.Direction.Ccw);
var paint = new Paint();
paint.AntiAlias = true;
paint.StrokeWidth = borderWidth;
paint.SetStyle(Paint.Style.Stroke);
paint.Color = borderColor;
canvas.DrawPath(path, paint);
//Properly dispose
paint.Dispose();
path.Dispose();
return result;
} catch (Exception ex) {
System.Diagnostics.Debug.WriteLine("Unable to create circle image: " + ex);
}
return base.DrawChild(canvas, child, drawingTime);
}
public static void SetClipPath(this BorderRenderer br, Canvas canvas)
{
var clipPath = new Path();
//float padding = br;// radius / 2;
float radius = (float)br.Element.CornerRadius - br.Context.ToPixels((float)br.Element.Padding.ThickestSide());// - padding / 2; // + MaxStrokeThickness());
int w = (int)br.Width;
int h = (int)br.Height;
clipPath.AddRoundRect(new RectF(
br.ViewGroup.PaddingLeft,
br.ViewGroup.PaddingTop,
w - br.ViewGroup.PaddingRight,
h - br.ViewGroup.PaddingBottom),
radius,
radius,
Path.Direction.Cw);
canvas.ClipPath(clipPath);
}
protected override bool DrawChild(Android.Graphics.Canvas canvas, Android.Views.View child, long drawingTime)
{
try
{
var radius = Math.Min(Width, Height) / 2;
var strokeWidth = 10;
radius -= strokeWidth / 2;
//Create path to clip
var path = new Path();
path.AddCircle(Width / 2, Height / 2, radius, Path.Direction.Ccw);
canvas.Save();
canvas.ClipPath(path);
var result = base.DrawChild(canvas, child, drawingTime);
canvas.Restore();
// Create path for circle border
path = new Path();
path.AddCircle(Width / 2, Height / 2, radius, Path.Direction.Ccw);
var paint = new Paint();
paint.AntiAlias = true;
paint.StrokeWidth = 5;
paint.SetStyle(Paint.Style.Stroke);
paint.Color = global::Android.Graphics.Color.White;
canvas.DrawPath(path, paint);
//Properly dispose
paint.Dispose();
path.Dispose();
return(result);
}
catch (Exception)
{
}
return(base.DrawChild(canvas, child, drawingTime));
}
protected override bool DrawChild(Android.Graphics.Canvas canvas, Android.Views.View child, long drawingTime)
{
try
{
var radius = Math.Min(Width, Height) / 2;
var strokeWidth = Convert.ToInt32(element.BorderWidth);
radius -= strokeWidth / 2;
Path path = new Path();
path.AddCircle(Width / 2, Height / 2, radius, Path.Direction.Ccw);
canvas.Save();
canvas.ClipPath(path);
var result = base.DrawChild(canvas, child, drawingTime);
canvas.Restore();
path = new Path();
path.AddCircle(Width / 2, Height / 2, radius, Path.Direction.Ccw);
var paint = new Paint();
paint.AntiAlias = true;
paint.StrokeWidth = element.BorderWidth;
paint.SetStyle(Paint.Style.Stroke);
paint.Color = global::Android.Graphics.Color.White;
canvas.DrawPath(path, paint);
paint.Dispose();
path.Dispose();
return(result);
}
catch (Exception ex)
{
var msg = ex.Message;
}
return(base.DrawChild(canvas, child, drawingTime));
}
protected override void OnDraw(ACanvas canvas)
{
if (this.Element == null)
{
return;
}
CorneredContentView control = (CorneredContentView)this.Element;
this.SetClipChildren(true);
//Create path to clip the child
using (Path path = new Path())
{
path.AddRoundRect(new RectF(0, 0, this.Width, this.Height), this.GetRadii(control), Path.Direction.Ccw);
canvas.Save();
canvas.ClipPath(path);
}
this.DrawBorder(canvas, control);
}
protected override bool DrawChild(Canvas canvas, global::Android.Views.View child, long drawingTime)
{
try
{
var radius = Math.Min(Width, Height) / 2;
var strokeWidth = 10;
radius -= strokeWidth / 2;
Path path = new Path();
path.AddCircle(Width / 2, Height / 2, radius, Path.Direction.Ccw);
canvas.Save();
canvas.ClipPath(path);
var result = base.DrawChild(canvas, child, drawingTime);
canvas.Restore();
path = new Path();
path.AddCircle(Width / 2, Height / 2, radius, Path.Direction.Ccw);
var paint = new Paint();
paint.AntiAlias = true;
paint.StrokeWidth = 5;
paint.SetStyle(Paint.Style.Stroke);
paint.Color = global::Android.Graphics.Color.White;
canvas.DrawPath(path, paint);
paint.Dispose();
path.Dispose();
return result;
}
catch (Exception ex)
{
}
return base.DrawChild(canvas, child, drawingTime);
}
protected override bool DrawChild(Canvas canvas, global::Android.Views.View child, long drawingTime)
{
try
{
var path = new Path ();
path.AddRoundRect (new RectF (0, 0, Width, Height), 15f, 15f, Path.Direction.Ccw);
canvas.Save ();
canvas.ClipPath (path);
var result = base.DrawChild(canvas, child, drawingTime);
canvas.Restore();
path.Dispose();
return result;
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine("Unable to create rounded rectangle image: " + ex);
}
return base.DrawChild(canvas, child, drawingTime);
}
public static Bitmap getRoundedShape(Bitmap scaleBitmapImage, int targetWidth, int targetHeight)
{
Bitmap targetBitmap = Bitmap.CreateBitmap(targetWidth,
targetHeight, Bitmap.Config.Argb8888);
Canvas canvas = new Canvas(targetBitmap);
Android.Graphics.Path path = new Android.Graphics.Path();
path.AddCircle(((float)targetWidth - 1) / 2,
((float)targetHeight - 1) / 2,
(Math.Min(((float)targetWidth),
((float)targetHeight)) / 2),
Android.Graphics.Path.Direction.Ccw);
canvas.ClipPath(path);
Bitmap sourceBitmap = scaleBitmapImage;
canvas.DrawBitmap(sourceBitmap,
new Rect(0, 0, sourceBitmap.Width,
sourceBitmap.Height),
new Rect(0, 0, targetWidth, targetHeight), null);
return targetBitmap;
}
public void Draw(Canvas canvas)
{
if (Hidden)
{
return;
}
canvas.Save();
if (!Focused)
{
outlinePaint.Color = Color.White;
canvas.DrawRect(DrawRect, outlinePaint);
}
else
{
Rect viewDrawingRect = new Rect();
context.GetDrawingRect(viewDrawingRect);
outlinePaint.Color = Color.White;// new Color(0XFF, 0xFF, 0x8A, 0x00);
focusPaint.Color = new Color(50, 50, 50, 125);
Path path = new Path();
path.AddRect(new RectF(DrawRect), Path.Direction.Cw);
canvas.ClipPath(path, Region.Op.Difference);
canvas.DrawRect(viewDrawingRect, focusPaint);
canvas.Restore();
canvas.DrawPath(path, outlinePaint);
if (mode == ModifyMode.Grow)
{
int left = DrawRect.Left + 1;
int right = DrawRect.Right + 1;
int top = DrawRect.Top + 4;
int bottom = DrawRect.Bottom + 3;
int widthWidth = resizeDrawableWidth.IntrinsicWidth / 2;
int widthHeight = resizeDrawableWidth.IntrinsicHeight / 2;
int heightHeight = resizeDrawableHeight.IntrinsicHeight / 2;
int heightWidth = resizeDrawableHeight.IntrinsicWidth / 2;
int xMiddle = DrawRect.Left + ((DrawRect.Right - DrawRect.Left) / 2);
int yMiddle = DrawRect.Top + ((DrawRect.Bottom - DrawRect.Top) / 2);
resizeDrawableWidth.SetBounds(left - widthWidth,
yMiddle - widthHeight,
left + widthWidth,
yMiddle + widthHeight);
resizeDrawableWidth.Draw(canvas);
resizeDrawableWidth.SetBounds(right - widthWidth,
yMiddle - widthHeight,
right + widthWidth,
yMiddle + widthHeight);
resizeDrawableWidth.Draw(canvas);
resizeDrawableHeight.SetBounds(xMiddle - heightWidth,
top - heightHeight,
xMiddle + heightWidth,
top + heightHeight);
resizeDrawableHeight.Draw(canvas);
resizeDrawableHeight.SetBounds(xMiddle - heightWidth,
bottom - heightHeight,
xMiddle + heightWidth,
bottom + heightHeight);
resizeDrawableHeight.Draw(canvas);
}
}
}
public override void Draw(Canvas canvas)
{
// Draw background
canvas.Save ();
canvas.ClipPath (clipMask);
canvas.DrawColor (bgColor);
canvas.Restore ();
// Draw labels
var middleX = Width / 2;
var selectedIndex = SelectedIndex;
float deltaY = PaddingTop;
for (int i = 0; i < words.Length; i++) {
var word = words [i];
var layout = textLayouts [word];
var colorRatio = Math.Abs (i - selectedIndex) > 1 ? 0 : 1 - Math.Abs (i - scrollPosition);
textPaint.Color = ImageUtils.InterpolateColor (colorRatio, normalColor, selectedColor);
canvas.Save (SaveFlags.Matrix);
canvas.Translate (middleX, deltaY);
layout.Draw (canvas);
canvas.Restore ();
deltaY += layout.Height + spacing;
}
// Draw knob
canvas.Save ();
var top = selectedIndex * spacing + words.Take (selectedIndex).Select (w => textLayouts[w].Height).Sum () - knobPadding + PaddingTop;
var selectedWordHeight = textLayouts [words [selectedIndex]].Height;
var bottom = top + selectedWordHeight + 2 * knobPadding;
var offset = scrollPosition - SelectedIndex;
if (offset > 0 && selectedIndex < words.Length - 1) {
var extraY = offset * (spacing + selectedWordHeight);
var nextWordHeight = textLayouts [words [selectedIndex + 1]].Height;
top += extraY;
bottom += extraY;
bottom += offset * (nextWordHeight - selectedWordHeight);
}
canvas.ClipRect (0, top, knobWidth, bottom);
canvas.DrawColor (Color.White);
canvas.Restore ();
}
private void DrawRing(Canvas c)
{
var sc = c.Save();
c.Rotate(-this.Degree, c.Width / 2, c.Height / 2);
//���ĵ�
var cx = c.Width / 2;
var cy = c.Height / 2;
//������Բ Path ����һ�� Բ����ʾ����, ���ڿ���Բ
var pInner = new Path();
pInner.AddCircle(cx, cy, this.BitmapRadius + SPACE / 2, Path.Direction.Cw);
var pOut = new Path();
pOut.AddCircle(cx, cy, this.Radius, Path.Direction.Cw);
c.ClipPath(pOut);
c.ClipPath(pInner, Region.Op.Difference);
//var color = new Color((int)(DateTime.Now.Ticks % 0xFFFFFFFF));
//c.DrawColor(color);
//�ýǶȽ��������Բ�ķ�Χ
var g = new SweepGradient(cx, cy, Color.Green, Color.Transparent);
var paint = new Paint();
paint.SetShader(g);
c.DrawCircle(cx, cy, this.Radius, paint);
c.RestoreToCount(sc);
}
private void DrawBitmap(Canvas c, Bitmap bmp)
{
var sc = c.Save();
this.Degree = this.Degree % 360 + DEGREE_STEP;
//Ҫ����ת����ͼ����Ч��
c.Rotate(this.Degree, c.Width / 2, c.Height / 2);
//���ĵ�
var cx = c.Width / 2;
var cy = c.Height / 2;
//����ʾ��Χ, ָ���뾶��Բ
var path = new Path();
path.AddCircle(cx, cy, this.BitmapRadius, Path.Direction.Cw);
c.ClipPath(path);
c.DrawColor(Color.White);
//ͼƬ�Ļ��Ʒ�Χ
var w = (this.ShowType == ShowTypes.Inner ? this.IWH : this.OWH) / 2;
var rect = new Rect(cx - w, cy - w, cx + w, cy + w);
//����ͼƬ
var paint = new Paint();
//srcΪnull, ��������ͼƬ��ΪԴ
c.DrawBitmap(bmp, null, rect, paint);
c.RestoreToCount(sc);
}
protected override void DispatchDraw(Canvas canvas)
{
if (showcaseX < 0 || showcaseY < 0 || isRedundant)
{
base.DispatchDraw(canvas);
return;
}
bool recalculatedCling = mShowcaseDrawer.CalculateShowcaseRect(showcaseX, showcaseY);
bool recalculateText = recalculatedCling || mAlteredText;
mAlteredText = false;
if (Build.VERSION.SdkInt <= BuildVersionCodes.Honeycomb && !mHasNoTarget)
{
var path = new Path();
path.AddCircle(showcaseX, showcaseY, showcaseRadius, Path.Direction.Cw);
canvas.ClipPath(path, Region.Op.Difference);
}
//Draw background color
canvas.DrawColor(mBackgroundColor);
// Draw the showcase drawable
if (!mHasNoTarget)
{
mShowcaseDrawer.DrawShowcase(canvas, showcaseX, showcaseY, scaleMultiplier, showcaseRadius);
}
// Draw the text on the screen, recalculating its position if necessary
if (recalculateText)
{
mTextDrawer.CalculateTextPosition(canvas.Width, canvas.Height, this);
}
mTextDrawer.Draw(canvas, recalculateText);
base.DispatchDraw(canvas);
}
protected override bool DrawChild(Android.Graphics.Canvas canvas, Android.Views.View child, long drawingTime)
{
var fImage = (CircularImage)this.Element;
try
{
var radius = (float)Math.Min(Width, Height) / 2f;
var borderThickness = fImage.BorderWidth;
float strokeWidth = 0f;
if (borderThickness > 0)
{
var logicalDensity = Xamarin.Forms.Forms.Context.Resources.DisplayMetrics.Density;
strokeWidth = (float)Math.Ceiling(borderThickness * logicalDensity + .5f);
}
radius -= strokeWidth / 2f;
var path = new Path();
path.AddCircle(Width / 2.0f, Height / 2.0f, radius, Path.Direction.Ccw);
canvas.Save();
canvas.ClipPath(path);
var paint = new Paint
{
AntiAlias = true
};
paint.SetStyle(Paint.Style.Fill);
paint.Color = fImage.BorderColor.ToAndroid();
canvas.DrawPath(path, paint);
paint.Dispose();
var result = base.DrawChild(canvas, child, drawingTime);
path.Dispose();
canvas.Restore();
path = new Path();
path.AddCircle(Width / 2f, Height / 2f, radius, Path.Direction.Ccw);
if (strokeWidth > 0.0f)
{
paint = new Paint();
paint.AntiAlias = true;
paint.StrokeWidth = strokeWidth;
paint.SetStyle(Paint.Style.Stroke);
paint.Color = fImage.BorderColor.ToAndroid();
canvas.DrawPath(path, paint);
paint.Dispose();
}
path.Dispose();
return(result);
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine("Unable to create circle image: " + ex);
}
return(base.DrawChild(canvas, child, drawingTime));
}
protected override bool DrawChild(Android.Graphics.Canvas canvas, Android.Views.View child, long drawingTime)
{
if (Element == null)
{
return(false);
}
RoundedCornerView rcv = (RoundedCornerView)Element;
this.SetClipChildren(true);
rcv.Padding = new Thickness(0, 0, 0, 0);
//rcv.HasShadow = false;
int radius = (int)(rcv.RoundedCornerRadius);
// Check if make circle is set to true. If so, then we just use the width and
// height of the control to calculate the radius. RoundedCornerRadius will be ignored
// in this case.
if (rcv.MakeCircle)
{
radius = Math.Min(Width, Height) / 2;
}
// When we create a round rect, we will have to double the radius since it is not
// the same as creating a circle.
radius *= 2;
try
{
//Create path to clip the child
var path = new Path();
path.AddRoundRect(new RectF(0, 0, Width, Height),
new float[] { radius, radius, radius, radius, radius, radius, radius, radius },
Path.Direction.Ccw);
canvas.Save();
canvas.ClipPath(path);
// Draw the child first so that the border shows up above it.
var result = base.DrawChild(canvas, child, drawingTime);
canvas.Restore();
/*
* If a border is specified, we use the same path created above to stroke
* with the border color.
* */
if (rcv.BorderWidth > 0)
{
// Draw a filled circle.
var paint = new Paint();
paint.AntiAlias = true;
paint.StrokeWidth = rcv.BorderWidth;
paint.SetStyle(Paint.Style.Stroke);
paint.Color = rcv.BorderColor.ToAndroid();
canvas.DrawPath(path, paint);
paint.Dispose();
}
//Properly dispose
path.Dispose();
return(result);
}
catch (Exception ex)
{
System.Console.Write(ex.Message);
}
return(base.DrawChild(canvas, child, drawingTime));
}
/// <summary>
/// Draw one child of this View Group.
/// </summary>
/// <param name="canvas">The canvas on which to draw the child</param>
/// <param name="child">Who to draw</param>
/// <param name="drawingTime">The time at which draw is occurring</param>
/// <returns>To be added.</returns>
/// <since version="Added in API level 1" />
/// <remarks><para tool="javadoc-to-mdoc">Draw one child of this View Group. This method is responsible for getting
/// the canvas in the right state. This includes clipping, translating so
/// that the child's scrolled origin is at 0, 0, and applying any animation
/// transformations.</para>
/// <para tool="javadoc-to-mdoc">
/// <format type="text/html">
/// <a href="http://developer.android.com/reference/android/view/ViewGroup.html#drawChild(android.graphics.Canvas, android.view.View, long)" target="_blank">[Android Documentation]</a>
/// </format>
/// </para></remarks>
protected override bool DrawChild(Canvas canvas, global::Android.Views.View child, long drawingTime)
{
if (this.Element.Aspect == Aspect.AspectFit)
{
var radius = Math.Min(Width, Height)/2;
var strokeWidth = 10;
radius -= strokeWidth/2;
Path path = new Path();
path.AddCircle(Width/2, Height/2, radius, Path.Direction.Ccw);
canvas.Save();
canvas.ClipPath(path);
var result = base.DrawChild(canvas, child, drawingTime);
path.Dispose();
return result;
}
return base.DrawChild(canvas, child, drawingTime);
}
void DrawWater(Canvas canvas)
{
canvas.Save ();
var circle = new Path ();
circle.AddCircle (Width / 2, Height / 2, Height / 2, Path.Direction.Ccw);
circle.Close ();
canvas.ClipPath (circle);
wavy.Draw (canvas);
canvas.Restore ();
}
internal void Draw(Canvas canvas, bool isRound)
{
if (Hidden)
{
return;
}
canvas.Save();
var resizerPaint = new Paint { Color = new Color(255, 255, 255, 200) };
//if (!Focused)
//{
// outlinePaint.Color = Color.White;
// canvas.DrawRect(DrawRect, outlinePaint);
// //canvas.DrawCircle(DrawRect.CenterX(), DrawRect.CenterY(), DrawRect.Width(), resizerPaint);
//}
//else
//{
Rect viewDrawingRect = new Rect();
context.GetDrawingRect(viewDrawingRect);
outlinePaint.Color = Color.White;// new Color(0XFF, 0xFF, 0x8A, 0x00);
focusPaint.Color = new Color(50, 50, 50, 125);
Path path = new Path();
if (isRound)
{
path.AddCircle(DrawRect.CenterX(), DrawRect.CenterY(), DrawRect.Width() / 2, Path.Direction.Cw);
canvas.ClipPath(path, Region.Op.Difference);
canvas.DrawCircle(viewDrawingRect.CenterX(), viewDrawingRect.CenterY(), viewDrawingRect.Width(), focusPaint);
}
else
{
path.AddRect(new RectF(DrawRect), Path.Direction.Cw);
canvas.ClipPath(path, Region.Op.Difference);
canvas.DrawRect(viewDrawingRect, focusPaint);
}
//canvas.ClipPath(path, Region.Op.Difference);
//if (isRound)
// canvas.DrawCircle(viewDrawingRect.CenterX(), viewDrawingRect.CenterY(), viewDrawingRect.Width(), focusPaint);
//else
// canvas.DrawRect(viewDrawingRect, focusPaint);
canvas.Restore();
canvas.DrawPath(path, outlinePaint);
var resizerTriangle = new Path();
var resizerOffset = 4;
var triangleSize = resizerSize + resizerOffset;
resizerTriangle.MoveTo(DrawRect.Right - resizerOffset, DrawRect.Bottom - triangleSize);
resizerTriangle.LineTo(DrawRect.Right - resizerOffset, DrawRect.Bottom - resizerOffset);
resizerTriangle.LineTo(DrawRect.Right - triangleSize, DrawRect.Bottom - resizerOffset);
resizerPaint.SetStyle(Paint.Style.Fill);
canvas.DrawPath(resizerTriangle, resizerPaint);
if (isRound)
{
// Draw the rectangle around the round cropper
var roundCropperRectangle = new Path();
roundCropperRectangle.MoveTo(DrawRect.Left, DrawRect.Top);
roundCropperRectangle.LineTo(DrawRect.Right, DrawRect.Top);
roundCropperRectangle.LineTo(DrawRect.Right, DrawRect.Bottom);
roundCropperRectangle.LineTo(DrawRect.Left, DrawRect.Bottom);
roundCropperRectangle.LineTo(DrawRect.Left, DrawRect.Top);
resizerPaint.SetStyle(Paint.Style.Stroke);
canvas.DrawPath(roundCropperRectangle, resizerPaint);
}
}
