protected virtual void HandleShapeDraw (Canvas canvas)
{
// We need to account for offsetting the coordinates based on the padding
var x = GetX () + Resize (this.ShapeView.Padding.Left);
var y = GetY () + Resize (this.ShapeView.Padding.Top);
switch (ShapeView.ShapeType) {
case ShapeType.Box:
HandleStandardDraw (canvas, p => {
var rect = new RectF (x, y, x + this.Width, y + this.Height);
if (ShapeView.CornerRadius > 0) {
var cr = Resize (ShapeView.CornerRadius);
canvas.DrawRoundRect (rect, cr, cr, p);
} else {
canvas.DrawRect (rect, p);
}
});
break;
case ShapeType.Circle:
HandleStandardDraw (canvas, p => canvas.DrawCircle (x + this.Width / 2, y + this.Height / 2, (this.Width - 10) / 2, p));
break;
case ShapeType.CircleIndicator:
HandleStandardDraw (canvas, p => canvas.DrawCircle (x + this.Width / 2, y + this.Height / 2, (this.Width - 10) / 2, p), drawFill: false);
HandleStandardDraw (canvas, p => canvas.DrawArc (new RectF (x, y, x + this.Width, y + this.Height), QuarterTurnCounterClockwise, 360 * (ShapeView.IndicatorPercentage / 100), false, p), ShapeView.StrokeWidth + 3, false);
break;
}
}
public override void DrawCore(IEnumerable<Feature> features, BoundingBox boundingBox, Canvas canvas,
DrawContext drawContext, bool shadow)
{
#if DEBUG
Log.Debug("com.mapquest.android.maps.lineoverlay", "LineOverlay.draw()");
#endif
////if (this.listener == null)
////{
//// this.listener = new EventListener(null);
//// mapView.addMapViewEventListener(this.listener);
////}
Rect bounds = canvas.ClipBounds;
Rect imageRegion = Util.CreateRectFromBoundingBox(boundingBox, drawContext.MapView);
int pad = (int) LinePaint.StrokeWidth/2;
imageRegion.Inset(-pad, -pad);
BoundingBox screenBox = Util.CreateBoundingBoxFromRect(bounds, drawContext.MapView);
foreach (var feature in features)
{
if (CanDraw(feature))
{
DrawLineCore(feature.Geometry, GetPaint(feature), imageRegion, bounds, screenBox,
drawContext.MapView, canvas);
}
}
}
public void draw(Canvas canvas) {
pathA.getPointOnLine(parameter, coordsA);
pathB.getPointOnLine(parameter, coordsB);
if (rounded) insetPointsForRoundCaps();
canvas.DrawLine(coordsA[0], coordsA[1], coordsB[0], coordsB[1], linePaint);
}
public static Bitmap ToRounded(Bitmap source, float rad, double cropWidthRatio, double cropHeightRatio, double borderSize, string borderHexColor)
{
double sourceWidth = source.Width;
double sourceHeight = source.Height;
double desiredWidth = sourceWidth;
double desiredHeight = sourceHeight;
double desiredRatio = cropWidthRatio / cropHeightRatio;
double currentRatio = sourceWidth / sourceHeight;
if (currentRatio > desiredRatio)
desiredWidth = (cropWidthRatio * sourceHeight / cropHeightRatio);
else if (currentRatio < desiredRatio)
desiredHeight = (cropHeightRatio * sourceWidth / cropWidthRatio);
float cropX = (float)((sourceWidth - desiredWidth) / 2d);
float cropY = (float)((sourceHeight - desiredHeight) / 2d);
if (rad == 0)
rad = (float)(Math.Min(desiredWidth, desiredHeight) / 2d);
else
rad = (float)(rad * (desiredWidth + desiredHeight) / 2d / 500d);
Bitmap bitmap = Bitmap.CreateBitmap((int)desiredWidth, (int)desiredHeight, Bitmap.Config.Argb8888);
using (Canvas canvas = new Canvas(bitmap))
using (Paint paint = new Paint())
using (BitmapShader shader = new BitmapShader(source, Shader.TileMode.Clamp, Shader.TileMode.Clamp))
using (Matrix matrix = new Matrix())
{
if (cropX != 0 || cropY != 0)
{
matrix.SetTranslate(-cropX, -cropY);
shader.SetLocalMatrix(matrix);
}
paint.SetShader(shader);
paint.AntiAlias = true;
RectF rectF = new RectF(0f, 0f, (float)desiredWidth, (float)desiredHeight);
canvas.DrawRoundRect(rectF, rad, rad, paint);
if (borderSize > 0d)
{
borderSize = (borderSize * (desiredWidth + desiredHeight) / 2d / 500d);
paint.Color = borderHexColor.ToColor(); ;
paint.SetStyle(Paint.Style.Stroke);
paint.StrokeWidth = (float)borderSize;
paint.SetShader(null);
RectF borderRectF = new RectF((float)(0d + borderSize/2d), (float)(0d + borderSize/2d),
(float)(desiredWidth - borderSize/2d), (float)(desiredHeight - borderSize/2d));
canvas.DrawRoundRect(borderRectF, rad, rad, paint);
}
return bitmap;
}
}
public override Android.Graphics.Drawables.Drawable GetBackgroundForPage (int row, int column)
{
Point pt = new Point (column, row);
Drawable drawable;
if (!mBackgrounds.ContainsKey(pt))
{
// the key wasn't found in Dictionary
var bm = Bitmap.CreateBitmap(200, 200, Bitmap.Config.Argb8888);
var c = new Canvas(bm);
var p = new Paint();
// Clear previous image.
c.DrawRect(0, 0, 200, 200, p);
p.AntiAlias = true;
p.SetTypeface(Typeface.Default);
p.TextSize = 64;
p.Color = Color.LightGray;
p.TextAlign = Paint.Align.Center;
c.DrawText(column + "-" + row, 100, 100, p);
drawable = new BitmapDrawable(owner.Resources, bm);
mBackgrounds.Add(pt, drawable);
}
else
{
// the key was found
drawable = mBackgrounds[pt];
}
return drawable;
}
protected override void OnSizeChanged(int w, int h, int oldw, int oldh)
{
base.OnSizeChanged(w, h, oldw, oldh);
CanvasBitmap = Bitmap.CreateBitmap(w, h, Bitmap.Config.Argb8888);
DrawCanvas = new Canvas(CanvasBitmap);
}
public static Bitmap ToBlurred(Bitmap source, Context context, float radius)
{
if ((int)Android.OS.Build.VERSION.SdkInt >= 17)
{
Bitmap bitmap = Bitmap.CreateBitmap(source.Width, source.Height, Bitmap.Config.Argb8888);
using (Canvas canvas = new Canvas(bitmap))
{
canvas.DrawBitmap(source, 0, 0, null);
using (Android.Renderscripts.RenderScript rs = Android.Renderscripts.RenderScript.Create(context))
{
using (Android.Renderscripts.Allocation overlayAlloc = Android.Renderscripts.Allocation.CreateFromBitmap(rs, bitmap))
{
using (Android.Renderscripts.ScriptIntrinsicBlur blur = Android.Renderscripts.ScriptIntrinsicBlur.Create(rs, overlayAlloc.Element))
{
blur.SetInput(overlayAlloc);
blur.SetRadius(radius);
blur.ForEach(overlayAlloc);
overlayAlloc.CopyTo(bitmap);
rs.Destroy();
return bitmap;
}
}
}
}
}
return ToLegacyBlurred(source, context, (int)radius);
}
private void drawPorcentajeOnCanvas(Canvas canvas)
{
base.OnDraw (canvas);
canvas.Save ();
canvas.DrawColor(Android.Graphics.Color.White);
//Obtenemos el centro de nuesto canvas
float x = this.MeasuredWidth / 2;
float y = this.MeasuredHeight / 2;
//Obtenemos el radio R1
//Obtenemos el radio R2
float R1 = 0;
float R2 = 0;
//if (canvas.Width < canvas.Height) {
if (this.MeasuredWidth < this.MeasuredHeight) {
R1 = x;//Obtenemos el radio R1
R2 = x-(x*por_rango/100);
} else {
R1 = y ;//Obtenemos el radio R1
R2 = y-(y *por_rango/100);//Obtenemos el radio R2 que dejamos un 20% de margen
}
//Dibujamos el fondo de nuestro grafico que va ir creciendo de acuerdo al porcentaje descargado
RectF rectF2 = new RectF(x-R1, y-R1,x+R1, y+R1);
mPaintFondo.Color= Android.Graphics.Color.Rgb(19,184,213);
int grados = 0;
grados = 360 * porcentaje / 100;
canvas.DrawArc(rectF2, 270, grados, true, mPaintFondo);
//Fondo superior de nuestro texto
mPaintSuperior.Color= Android.Graphics.Color.Rgb(50,58,69);
canvas.DrawCircle(x,y , R2, mPaintSuperior);
//Texto que nos indica el procentaje descargado
mPaintTexto.SetTypeface (mFace);
mPaintTexto.Color = Color.White;
//Obtenemos el 30 % de radio de nuestro circulo de fondo, el cual sera el tamaño de letra utilzar;
float MYTEXTSIZE = R2 *30/100;
// Get the screen's density scale
float scale = Application.Context.Resources.DisplayMetrics.Density;
//Convert the dps to pixels, based on density scale
int textSizePx = (int) (MYTEXTSIZE * scale + 0.5f);
mPaintTexto.TextSize = textSizePx;
//Obtenemos la posicion para centrar adecuadamente nuesto texto
int xPos = (this.MeasuredWidth / 2);
int yPos = (int) ((this.MeasuredHeight / 2) - ((mPaintTexto.Descent() + mPaintTexto.Ascent()) / 2)) ;
string Texto_Porcentaje =porcentaje.ToString();
canvas.DrawText (Texto_Porcentaje+" %", xPos,yPos, mPaintTexto);
canvas.Restore();
}
protected override void OnDraw (Canvas canvas)
{
if (this.currentPath == null || this.currentPath.IsEmpty)
return;
canvas.DrawPath (this.currentPath, this.currentPaint);
}
protected override void OnDraw(Canvas canvas)
{
base.OnDraw (canvas);
var stokewidth = TapUtil.dptodx (this.stokewidthdp);
var progresswidth = TapUtil.dptodx (this.progresswidthdp);
//draw border
int center = Width / 2;
nn_paint.SetStyle(Paint.Style.Stroke);
nn_paint.Color=nn_outcolor;
nn_paint.StrokeWidth = stokewidth;
canvas.DrawCircle(center,center, nn_radius-stokewidth, nn_paint);
//draw remainingsection of progress
nn_paint.SetStyle (Paint.Style.Fill);
nn_paint.Color=nn_progressremainingcolor;
//RectF position is relative toparent
canvas.DrawCircle(center,center, nn_radius-stokewidth*2, nn_paint);
//draw progress
nn_paint.SetStyle (Paint.Style.Stroke);
nn_paint.Color=nn_progresscolor;
nn_paint.StrokeWidth = progresswidthdp*2;
//RectF position is relative toparent
RectF oval = new RectF (0+(stokewidth*2)+Convert.ToSingle(progresswidthdp*1.5),0+(stokewidth*2)+Convert.ToSingle(progresswidthdp*1.5),nn_radius*2-(stokewidth*2)-Convert.ToSingle(progresswidthdp*1.5),nn_radius*2-(stokewidth*2)-Convert.ToSingle(progresswidthdp*1.5));
canvas.DrawArc(oval, progresssstartangle, progresssendangle, false, nn_paint);
//draw avatarcontainer (innercircle)
nn_paint.SetStyle(Paint.Style.Fill);
nn_paint.Color=nn_innercontainercolor;
canvas.DrawCircle(center,center, nn_radius-progresswidth-stokewidth*2, nn_paint);
}
public void DrawStopwatch(Canvas canvas)
{
canvas.Save();
canvas.Translate(Width / 2F, Height / 2F);
var tickMarks = new Path();
tickMarks.AddCircle(0, 0, 90, Path.Direction.Cw);
var scale = Math.Min(Width, Height) / 2F / 120;
canvas.Scale(scale, scale);
var paint = new Paint
{
StrokeCap = Paint.Cap.Square,
Color = new Color(240, 240, 240)
};
paint.SetStyle(Paint.Style.Stroke);
paint.StrokeWidth = 3;
paint.SetPathEffect(MinuteDashEffect);
canvas.DrawPath(tickMarks, paint);
paint.Color = new Color(240, 240, 240);
paint.StrokeWidth = 4;
paint.SetPathEffect(FifthMinuteDashEffect);
canvas.DrawPath(tickMarks, paint);
}
public Bitmap GetBitmapMarker(Context mContext, int resourceId, string text)
{
Resources resources = mContext.Resources;
float scale = resources.DisplayMetrics.Density;
Bitmap bitmap = BitmapFactory.DecodeResource(resources, resourceId);
Bitmap.Config bitmapConfig = bitmap.GetConfig();
// set default bitmap config if none
if (bitmapConfig == null)
bitmapConfig = Bitmap.Config.Argb8888;
bitmap = bitmap.Copy(bitmapConfig, true);
Canvas canvas = new Canvas(bitmap);
Paint paint = new Paint(PaintFlags.AntiAlias);
paint.Color = global::Android.Graphics.Color.Black;
paint.TextSize = ((int)(14 * scale));
paint.SetShadowLayer(1f, 0f, 1f, global::Android.Graphics.Color.White);
// draw text to the Canvas center
Rect bounds = new Rect();
paint.GetTextBounds(text, 0, text.Length, bounds);
int x = (bitmap.Width - bounds.Width()) / 2;
int y = (bitmap.Height + bounds.Height()) / 2 - 20;
canvas.DrawText(text, x, y, paint);
return bitmap;
}
public void transformCanvas(Canvas canvas, float percentOpen)
{
mtrans.transformCanvas(canvas, percentOpen);
float f = minterp.GetInterpolation(percentOpen);
canvas.Scale((mopenedX - mclosedX) * f + mclosedX,
(mopenedY - mclosedY) * f + mclosedY, mpx, mpy);
}
protected override void DispatchDraw (Canvas canvas)
{
base.DispatchDraw (canvas);
if (!firstTime)
return;
for(int i = 0; i< tabs.TabCount; i++)
{
var tab = tabs.GetTabAt (i);
var page = tabbedPage.Children [tab.Position];
if (page is TabPage) {
var tPage = (TabPage)page;
SetTab (tab, (tabs.SelectedTabPosition == tab.Position) ? tPage.SelectedIcon.File : tPage.Icon.File);
} else
{
SetTab (tab, page.Icon.File);
}
if (!tabbedPage.ShowTitles)
{
tab.SetText (string.Empty);
}
}
firstTime = false;
}
static Bitmap GetCroppedBitmap (Bitmap bmp, int radius)
{
Bitmap sbmp;
if (bmp.Width != radius || bmp.Height != radius)
sbmp = Bitmap.CreateScaledBitmap (bmp, radius, radius, false);
else
sbmp = bmp;
var output = Bitmap.CreateBitmap (sbmp.Width,
sbmp.Height, Bitmap.Config.Argb8888);
var canvas = new Canvas (output);
var paint = new Paint ();
var rect = new Rect (0, 0, sbmp.Width, sbmp.Height);
paint.AntiAlias = true;
paint.FilterBitmap = true;
paint.Dither = true;
canvas.DrawARGB (0, 0, 0, 0);
paint.Color = Color.ParseColor ("#BAB399");
canvas.DrawCircle (sbmp.Width / 2 + 0.7f, sbmp.Height / 2 + 0.7f,
sbmp.Width / 2 + 0.1f, paint);
paint.SetXfermode (new PorterDuffXfermode (PorterDuff.Mode.SrcIn));
canvas.DrawBitmap (sbmp, rect, rect, paint);
return output;
}
protected override void OnDraw(Canvas canvas)
{
base.OnDraw(canvas);
_buttonBackgroundPaint.Color = _backgroundColor;
float diameter = _radius * 2;
float uWidth = PaddingLeft == 0 && PaddingRight == 0 ? diameter : Width - PaddingLeft - PaddingRight;
float uHeight = PaddingBottom == 0 && PaddingTop == 0 ? diameter : Height - PaddingTop - PaddingBottom;
float cx = uWidth / 2;
float cy = uHeight / 2;
float radius = Math.Min(uWidth - DipToPixels(2), uHeight - DipToPixels(2)) / 2;
if (Build.VERSION.SdkInt >= BuildVersionCodes.Honeycomb)
{
SetLayerType(LayerType.Software, null);
}
_shadowPaint.SetShadowLayer(10, 0, 0, _shadowColor);
canvas.DrawCircle(cx, cy, radius - 4, _shadowPaint);
canvas.DrawCircle(cx, cy, radius, _buttonBackgroundPaint);
int sidePadding = (int)(_radius * 0.25);
int ulPadding = (int)(_radius * (0.25 + _contentScale));
_drawableContent?.SetBounds(sidePadding, sidePadding, ulPadding, ulPadding);
_drawableContent?.Draw(canvas);
}
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);
}
/**
* This will generate a bitmap with the pattern
* as big as the rectangle we were allow to draw on.
* We do this to chache the bitmap so we don't need to
* recreate it each time draw() is called since it
* takes a few milliseconds.
*/
private void GeneratePatternBitmap()
{
if (Bounds.Width() <= 0 || Bounds.Height() <= 0)
{
return;
}
_bitmap = Bitmap.CreateBitmap(Bounds.Width(), Bounds.Height(), Bitmap.Config.Argb8888);
using (var canvas = new Canvas(_bitmap))
{
var r = new Rect();
var verticalStartWhite = true;
for (var i = 0; i <= _numRectanglesVertical; i++)
{
var isWhite = verticalStartWhite;
for (var j = 0; j <= _numRectanglesHorizontal; j++)
{
r.Top = i * _rectangleSize;
r.Left = j * _rectangleSize;
r.Bottom = r.Top + _rectangleSize;
r.Right = r.Left + _rectangleSize;
canvas.DrawRect(r, isWhite ? _paintWhite : _paintGray);
isWhite = !isWhite;
}
verticalStartWhite = !verticalStartWhite;
}
}
}
public override void Draw(Canvas canvas)
{
foreach (Chaser chaser in _chasers)
{
chaser.Draw(canvas);
}
}
public Bitmap Transform(Bitmap source)
{
int size = Math.Min(source.Width, source.Height);
int width = (source.Width - size) / 2;
int height = (source.Height - size) / 2;
var bitmap = Bitmap.CreateBitmap(size, size, Bitmap.Config.Argb4444);
var canvas = new Canvas(bitmap);
var paint = new Paint();
var shader =
new BitmapShader(source, BitmapShader.TileMode.Clamp, BitmapShader.TileMode.Clamp);
if (width != 0 || height != 0)
{
// source isn't square, move viewport to center
var matrix = new Matrix();
matrix.SetTranslate(-width, -height);
shader.SetLocalMatrix(matrix);
}
paint.SetShader(shader);
paint.AntiAlias = true;
float r = size / 2f;
canvas.DrawCircle(r, r, r, paint);
source.Recycle();
return bitmap;
}
public new void Draw(Canvas canvas, Paint paint)
{
int viewWidth = mProgressBar.Width;
int viewHeight = mProgressBar.Height;
canvas.DrawCircle(viewWidth / 2, viewHeight / 2, (mCircleDiameter / 2 + mShadowRadius), mShadowPaint);
canvas.DrawCircle(viewWidth / 2, viewHeight / 2, (mCircleDiameter / 2), paint);
}
public override void Draw (Canvas canvas)
{
var bounds = Bounds;
if (alpha != 255) {
paint.Alpha = 255;
if (SecondBitmap != null) {
if (shader1 == null)
shader1 = new BitmapShader (FirstBitmap, Shader.TileMode.Clamp, Shader.TileMode.Clamp);
shader1.SetLocalMatrix (matrix);
paint.SetShader (shader1);
canvas.DrawRect (bounds, paint);
} else
canvas.DrawColor (defaultColor.ToAndroidColor());
}
if (alpha != 0) {
paint.Alpha = alpha;
if (FirstBitmap != null) {
if (shader2 == null)
shader2 = new BitmapShader (SecondBitmap, Shader.TileMode.Clamp, Shader.TileMode.Clamp);
shader2.SetLocalMatrix (matrix);
paint.SetShader (shader2);
canvas.DrawRect (bounds, paint);
} else
canvas.DrawColor (defaultColor.ToAndroidColor());
}
}
protected override void OnDraw(Canvas canvas)
{
Android.Graphics.Drawable.Drawable drawable = GetDrawable();
if (drawable is BitmapDrawable)
{
RectF rectF = new RectF(drawable.GetBounds());
int restoreCount = canvas.SaveLayer(rectF, null, Canvas.AllSaveFlag);
GetImageMatrix().MapRect(rectF);
Paint paint = ((BitmapDrawable)drawable).GetPaint();
paint.SetAntiAlias(true);
paint.SetColor(unchecked((int)(0xff000000)));
canvas.DrawARGB(0, 0, 0, 0);
canvas.DrawRoundRect(rectF, Radius, Radius, paint);
Xfermode restoreMode = paint.GetXfermode();
paint.SetXfermode(new PorterDuffXfermode(PorterDuff.Mode.SrcIn));
base.OnDraw(canvas);
// Restore paint and canvas
paint.SetXfermode(restoreMode);
canvas.RestoreToCount(restoreCount);
}
else
{
base.OnDraw(canvas);
}
}
protected override void OnDraw(Canvas canvas)
{
base.OnDraw (canvas);
var r = new Rect ();
this.GetLocalVisibleRect (r);
var half = r.Width() / 2;
var height = r.Height();
var percentage = (this.Limit - Math.Abs(this.CurrentValue)) / this.Limit;
var paint = new Paint()
{
Color = this.CurrentValue < 0 ? this.negativeColor : this.positiveColor,
StrokeWidth = 5
};
paint.SetStyle(Paint.Style.Fill);
if (this.CurrentValue < 0)
{
var start = (float)percentage * half;
var size = half - start;
canvas.DrawRect (new Rect ((int)start, 0, (int)(start + size), height), paint);
}
else
{
canvas.DrawRect (new Rect((int)half, 0, (int)(half + percentage * half), height), paint);
}
}
protected void DrawShape(Canvas canvas)
{
Paint paint = new Paint();
paint.Color = Color;
switch (Shape)
{
case ShapeEnum.RectangleShape:
canvas.DrawRect(0, 0, ShapeWidth, ShapeHeight, paint);
break;
case ShapeEnum.OvalShape:
canvas.DrawOval(new RectF(0, 0, ShapeWidth, ShapeHeight), paint);
break;
case ShapeEnum.TriangleShape:
Path path = new Path();
path.MoveTo(ShapeWidth / 2, 0);
path.LineTo(ShapeWidth, ShapeHeight);
path.LineTo(0,ShapeHeight);
path.Close();
canvas.DrawPath(path, paint);
break;
default:
canvas.DrawCircle(ShapeWidth / 2, ShapeHeight / 2, ShapeWidth / 2, paint);
break;
}
}
//protected override void OnElementChanged(VisualElement oldModel, VisualElement newModel)
//protected override void OnElementChanged(ElementChangedEventArgs<TabbedPage> e)
protected override void OnDraw(Canvas canvas)
{
_activity = this.Context as Activity;
ActionBar actionBar = _activity.ActionBar;
if (actionBar.TabCount > 0)
{
ActionBar.Tab tabPrompting = actionBar.GetTabAt(0);
ActionBar.Tab tabActivities = actionBar.GetTabAt(1);
ActionBar.Tab tabReminders = actionBar.GetTabAt(2);
ActionBar.Tab tabMapping = actionBar.GetTabAt(3);
ActionBar.Tab tabSettings = actionBar.GetTabAt(4);
//Set the tab icons
tabPrompting.SetIcon(Resource.Drawable.ic_description_white_24dp);
tabActivities.SetIcon(Resource.Drawable.ic_local_activity_white_24dp);
tabReminders.SetIcon(Resource.Drawable.ic_schedule_white_24dp);
tabMapping.SetIcon(Resource.Drawable.ic_map_white_24dp);
tabSettings.SetIcon(Resource.Drawable.ic_settings_white_24dp);
//Remove the page's title from the tab
tabPrompting.SetText("");
tabActivities.SetText("");
tabReminders.SetText("");
tabMapping.SetText("");
tabSettings.SetText("");
base.OnDraw(canvas);
}
}
public override void Draw(Canvas canvas)
{
foreach (CirclePaint item in _touches)
{
item.Draw(canvas);
}
}
protected override void OnDraw (Canvas canvas)
{
drawCanvas = canvas;
canvas.DrawBitmap(canvasBitmap, 0, 0, canvasPaint);
canvas.DrawPath(drawPath, drawPaint);
}
public static void Draw(Canvas canvas, IViewport viewport, IStyle style, IFeature feature)
{
try
{
if (!feature.RenderedGeometry.ContainsKey(style)) feature.RenderedGeometry[style] = ToAndroidBitmap(feature.Geometry);
var bitmap = (AndroidGraphics.Bitmap)feature.RenderedGeometry[style];
var dest = WorldToScreen(viewport, feature.Geometry.GetBoundingBox());
dest = new BoundingBox(
dest.MinX,
dest.MinY,
dest.MaxX,
dest.MaxY);
var destination = RoundToPixel(dest);
using (var paint = new Paint())
{
canvas.DrawBitmap(bitmap, new Rect(0, 0, bitmap.Width, bitmap.Height), destination, paint);
}
DrawOutline(canvas, style, destination);
}
catch (Exception ex)
{
Trace.WriteLine(ex.Message);
}
}
protected void DrawDividersHorizontal(Canvas canvas)
{
int count = ChildCount;
for (int i = 0; i < count; i++)
{
View child = GetChildAt(i);
if (child != null && child.Visibility != ViewStates.Gone)
{
if (HasDividerBeforeChildAt(i))
{
var lp = (MarginLayoutParams)child.LayoutParameters;
int left = child.Left - lp.LeftMargin;
DrawVerticalDivider(canvas, left);
}
}
}
if (HasDividerBeforeChildAt(count))
{
View child = GetChildAt(count - 1);
int right = 0;
if (child == null)
{
right = Width - PaddingRight;
}
else
{
var lp = (MarginLayoutParams)child.LayoutParameters;
right = child.Right + lp.RightMargin;
}
DrawVerticalDivider(canvas, right);
}
}
public Android.Graphics.Canvas GetCanvas()
{
if (this.canvas == null)
{
this.canvas = new Android.Graphics.Canvas(this.bmp);
}
return(this.canvas);
}
protected void CreateTextBitmaps(int width, int height)
{
// create a 32bit text bmp that will store the rendered text.
TextBmp = Bitmap.CreateBitmap(width, height, Bitmap.Config.Argb8888);
// create a canvas and place the TextBmp as its target
Android.Graphics.Canvas canvas = new Android.Graphics.Canvas(TextBmp);
// render our text (which will put it into the TextBmp buffer)
base.OnDraw(canvas);
// set the TextPaint's shader to render with the Text we just rendered
TextPaint.SetShader(new BitmapShader(TextBmp, Shader.TileMode.Clamp, Shader.TileMode.Clamp));
}
Bitmap CreateBitmap(bool pressed, int width, int height)
{
Bitmap bitmap;
using (Bitmap.Config config = Bitmap.Config.Argb8888)
bitmap = Bitmap.CreateBitmap(width, height, config);
using (var canvas = new ACanvas(bitmap))
{
DrawCanvas(canvas, width, height, pressed);
}
return(bitmap);
}
void DrawBackground(ACanvas canvas, int width, int height, CornerRadius cornerRadius)
{
using (var paint = new Paint {
AntiAlias = true
})
using (Path.Direction direction = Path.Direction.Cw)
using (Paint.Style style = Paint.Style.Fill)
{
var path = new Path();
if (_pancake.Sides != 4)
{
path = DrawingExtensions.CreatePolygonPath(width, height, _pancake.Sides, _pancake.CornerRadius.TopLeft, _pancake.OffsetAngle);
}
else
{
float topLeft = _convertToPixels(cornerRadius.TopLeft);
float topRight = _convertToPixels(cornerRadius.TopRight);
float bottomRight = _convertToPixels(cornerRadius.BottomRight);
float bottomLeft = _convertToPixels(cornerRadius.BottomLeft);
path = DrawingExtensions.CreateRoundedRectPath(width, height, topLeft, topRight, bottomRight, bottomLeft);
}
if (_pancake.BackgroundGradientStops != null && _pancake.BackgroundGradientStops.Any())
{
// A range of colors is given. Let's add them.
var orderedStops = _pancake.BackgroundGradientStops.OrderBy(x => x.Offset).ToList();
var colors = orderedStops.Select(x => x.Color.ToAndroid().ToArgb()).ToArray();
var locations = orderedStops.Select(x => x.Offset).ToArray();
var shader = new LinearGradient((float)(canvas.Width * _pancake.BackgroundGradientStartPoint.X),
(float)(canvas.Height * _pancake.BackgroundGradientStartPoint.Y),
(float)(canvas.Width * _pancake.BackgroundGradientEndPoint.X),
(float)(canvas.Height * _pancake.BackgroundGradientEndPoint.Y),
colors, locations, Shader.TileMode.Clamp);
paint.SetShader(shader);
}
else
{
global::Android.Graphics.Color color = _pancake.BackgroundColor.ToAndroid();
paint.SetStyle(style);
paint.Color = color;
}
canvas.DrawPath(path, paint);
}
}
private void DrawBackground(ACanvas canvas, int width, int height, CornerRadius cornerRadius, bool pressed)
{
using (var paint = new Paint {
AntiAlias = true
})
using (var path = PolygonUitls.RegularPolygonPath(width, height, _polygonFrame.Sides, _polygonFrame.CornerRadius, 0, _polygonFrame.OffsetAngle))
using (Paint.Style style = Paint.Style.Fill)
{
global::Android.Graphics.Color color = _polygonFrame.BackgroundColor.ToAndroid();
paint.SetStyle(style);
paint.Color = color;
canvas.DrawPath(path, paint);
}
}
void FrameOnPropertyChanged(object sender, PropertyChangedEventArgs e)
{
if (e.PropertyName == VisualElement.BackgroundColorProperty.PropertyName || e.PropertyName == Frame.OutlineColorProperty.PropertyName)
{
using (var canvas = new ACanvas(_normalBitmap))
{
int width = Bounds.Width();
int height = Bounds.Height();
canvas.DrawColor(global::Android.Graphics.Color.Black, PorterDuff.Mode.Clear);
DrawBackground(canvas, width, height, false);
DrawOutline(canvas, width, height);
}
InvalidateSelf();
}
}
void DrawOutline(ACanvas canvas, Path path)
{
using (var paint = new Paint {
AntiAlias = true
})
using (Path.Direction direction = Path.Direction.Cw)
using (Paint.Style style = Paint.Style.Stroke)
{
paint.StrokeWidth = 1;
paint.SetStyle(style);
paint.Color = _frame.OutlineColor.ToAndroid();
canvas.DrawPath(path, paint);
}
}
protected override void OnDraw(Android.Graphics.Canvas canvas)
{
//Clean(canvas);
rect = new Rect(App.DrawOffset, App.DrawOffset, App.DrawOffset + App.DrawWidth, App.DrawOffset + App.DrawHeight);
canvas.DrawRect(rect, r_paint);
if (App.planes != null && App.planes.Count > 0)
{
foreach (StructPlane plane in App.planes)
{
plane.Draw(canvas);
}
}
base.OnDraw(canvas);
}
public override void Draw(Android.Graphics.Canvas canvas)
{
base.Draw(canvas);
var drawArea = GetDrawArea(canvas);
var rx = ViewHelper.LogicalToPhysicalPixels(RadiusX);
var ry = ViewHelper.LogicalToPhysicalPixels(RadiusY);
var fillRect = new Android.Graphics.Path();
fillRect.AddRoundRect(drawArea.ToRectF(), rx, ry, Android.Graphics.Path.Direction.Cw);
DrawFill(canvas, drawArea, fillRect);
DrawStroke(canvas, drawArea, (c, r, p) => c.DrawRoundRect(r.ToRectF(), rx, ry, p));
}
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);
}
void DrawBackground(ACanvas canvas, Path path, bool pressed)
{
using (var paint = new Paint {
AntiAlias = true
})
using (Path.Direction direction = Path.Direction.Cw)
using (Paint.Style style = Paint.Style.Fill)
{
global::Android.Graphics.Color color = _frame.InnerBackground.ToAndroid();
paint.SetStyle(style);
paint.Color = color;
canvas.DrawPath(path, paint);
}
}
/// <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(Android.Graphics.Canvas canvas)
{
// Should we clip?
if (Element != null && Element.IsClippedToBounds)
{
canvas.ClipRect(new Android.Graphics.Rect(0, 0, Width, Height), Region.Op.Replace);
}
// Perform custom drawing
var ncanvas = new CanvasCanvas(canvas);
Element.Draw(ncanvas, new NGraphics.Rect(0, 0, Width, Height));
// Draw elements/children etc.
base.Draw(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 DrawCanvas(ACanvas canvas, int width, int height, bool pressed)
{
float cornerRadius = _frame.CornerRadius;
if (cornerRadius == -1f)
{
cornerRadius = 5f; // default corner radius
}
else
{
cornerRadius = Forms.Context.ToPixels(cornerRadius);
}
DrawBackground(canvas, width, height, cornerRadius, pressed);
DrawOutline(canvas, width, height, cornerRadius);
}
void DrawBackground(ACanvas canvas, int width, int height, CornerRadius cornerRadius, bool pressed)
{
using (var paint = new Paint {
AntiAlias = true
})
using (var path = new Path())
using (Path.Direction direction = Path.Direction.Cw)
using (Paint.Style style = Paint.Style.Fill)
using (var rect = new RectF(0, 0, width, height))
{
float topLeft = _convertToPixels(cornerRadius.TopLeft);
float topRight = _convertToPixels(cornerRadius.TopRight);
float bottomRight = _convertToPixels(cornerRadius.BottomRight);
float bottomLeft = _convertToPixels(cornerRadius.BottomLeft);
if (!_pancake.HasShadow)
{
path.AddRoundRect(rect, new float[] { topLeft, topLeft, topRight, topRight, bottomRight, bottomRight, bottomLeft, bottomLeft }, direction);
}
else
{
path.AddRoundRect(rect, new float[] { topLeft, topLeft, topLeft, topLeft, topLeft, topLeft, topLeft, topLeft }, direction);
}
if (_pancake.BackgroundGradientStartColor != default(Xamarin.Forms.Color) && _pancake.BackgroundGradientEndColor != default(Xamarin.Forms.Color))
{
var angle = _pancake.BackgroundGradientAngle / 360.0;
// Calculate the new positions based on angle between 0-360.
var a = width * Math.Pow(Math.Sin(2 * Math.PI * ((angle + 0.75) / 2)), 2);
var b = height * Math.Pow(Math.Sin(2 * Math.PI * ((angle + 0.0) / 2)), 2);
var c = width * Math.Pow(Math.Sin(2 * Math.PI * ((angle + 0.25) / 2)), 2);
var d = height * Math.Pow(Math.Sin(2 * Math.PI * ((angle + 0.5) / 2)), 2);
var shader = new LinearGradient(width - (float)a, (float)b, width - (float)c, (float)d, _pancake.BackgroundGradientStartColor.ToAndroid(), _pancake.BackgroundGradientEndColor.ToAndroid(), Shader.TileMode.Clamp);
paint.SetShader(shader);
}
else
{
global::Android.Graphics.Color color = _pancake.BackgroundColor.ToAndroid();
paint.SetStyle(style);
paint.Color = color;
}
canvas.DrawPath(path, paint);
}
}
protected override void OnDraw(Android.Graphics.Canvas canvas)
{
base.OnDraw(canvas);
Paint White = new Paint();
White.Color = Color.White;
float min = 100;
float max = 0;
if (vals != null)
{
float xOffset = (float)Width / (float)(vals.Length - 1);
for (int i = 0; i < vals.Length; i++)
{
if (min > vals[i])
{
min = vals[i];
}
if (max < vals[i])
{
max = vals[i];
}
}
max++;
for (int i = 1; i < vals.Length; i++)
{
float startX = xOffset * (i - 1);
float stopX = xOffset * i;
float startY = Height / ((max - min) / (max - vals[i - 1]));
float stopY = Height / ((max - min) / (max - vals[i]));
// canvas.DrawRect(startX-5f,startY+5f,startX+5f,startY-5f,White);
canvas.DrawLine(startX, startY, stopX, stopY, White);
}
}
else
{
canvas.DrawLine(0, Height / 2, Width, Height / 2, White);
}
}
public override void Draw(Android.Graphics.Canvas canvas,
MapView mapView, bool shadow)
{
base.Draw(canvas, mapView, shadow);
var paint = new Paint();
paint.AntiAlias = true;
paint.Color = Color.Purple;
paint.Alpha = 127;
var gp = new GeoPoint((int)(29.97611 * 1e6), (int)(31.132778 * 1e6));
var pt = mapView.Projection.ToPixels(gp, null);
float distance = mapView.Projection.MetersToEquatorPixels(200);
canvas.DrawCircle(pt.X, pt.Y, distance / 2, paint);
}
private Bitmap CaptureView(View view)
{
if (renderSurface == null || renderSurface.Width != view.Width || renderSurface.Height != view.Height)
{
renderSurface?.Dispose();
renderSurface = null;
renderSurface = Bitmap.CreateBitmap(view.Width, view.Height, Bitmap.Config.Argb8888);
}
using (var canvas = new Android.Graphics.Canvas(renderSurface))
{
view.Draw(canvas);
return(renderSurface);
}
}
public object ConvertToBitmap(double width, double height, double scaleFactor, ImageFormat format)
{
if (_drawCallback != null)
{
var image = new DroidImage((int)width, (int)height, format);
using (var canvas = new AG.Canvas(image.Image))
using (var dc = new DroidContext {
Canvas = canvas
}) {
canvas.Scale((float)scaleFactor, (float)scaleFactor);
_drawCallback(dc, new Xwt.Rectangle(0, 0, width, height));
}
return(image);
}
throw new NotSupportedException();
}
protected override void Draw(Canvas canvas, Rect bounds)
{
int saveCount = canvas.Save();
mTempBounds.Set(Bounds);
mTempBounds.Inset(mStrokeInset, mStrokeInset);
canvas.Rotate(mGroupRotation, mTempBounds.CenterX(), mTempBounds.CenterY());
if (mSwipeDegrees != 0)
{
mPaint.Color = new Color(mCurrentColor);
canvas.DrawArc(mTempBounds, mStartDegrees, mSwipeDegrees, false, mPaint);
}
canvas.RestoreToCount(saveCount);
}
public static void CreateAlphaMask(Android.Content.Context context, string fileName)
{
// load the stream from assets
System.IO.Stream assetStream = context.Assets.Open(fileName);
// grab the RGBA mask
Bitmap rgbaMask = BitmapFactory.DecodeStream(assetStream);
// convert it to an alpha mask
AlphaMask = Bitmap.CreateBitmap(rgbaMask.Width, rgbaMask.Height, Bitmap.Config.Alpha8);
// put the 8bit mask into a canvas
Android.Graphics.Canvas maskCanvas = new Android.Graphics.Canvas(AlphaMask);
// render the rgb mask into the canvas, which writes the result into the AlphaMask bitmap
maskCanvas.DrawBitmap(rgbaMask, 0.0f, 0.0f, null);
}
protected override void OnDraw(Android.Graphics.Canvas canvas)
{
base.OnDraw(canvas);
if (!IsActive)
{
return;
}
// This is required for progress ring to visually update when inside transformed ancestor on hardware-accelerated devices
var didInvalidate = ((this as View).Parent as UnoViewGroup).InvalidateTransformedHierarchy();
if (didInvalidate)
{
// Invalidate self to ensure OnDraw() is called as long as transform is applied
Invalidate();
}
}
protected override void OnDraw(Android.Graphics.Canvas canvas)
{
BorderedRectPaintDrawable paintDrawable = Background as BorderedRectPaintDrawable;
if (paintDrawable != null)
{
float borderWidth = TypedValue.ApplyDimension(ComplexUnitType.Dip, paintDrawable.BorderWidth, Rock.Mobile.PlatformSpecific.Android.Core.Context.Resources.DisplayMetrics);
// perform just a vertical translation to ensure the text is centered
canvas.Translate(0, borderWidth);
// create a scalar to uniformly scale down the text so it fits within the border
float scalar = (canvas.Width - (borderWidth * 2)) / canvas.Width;
canvas.Scale(scalar, scalar);
}
base.OnDraw(canvas);
}
protected override void DrawRightThumb(Android.Graphics.Canvas p0, float x1, float y1, float x2, float y2)
{
float density = Context.Resources.DisplayMetrics.Density;
Paint paint = new Paint();
paint.AntiAlias = true;
RectF rounderRectF = new RectF(x2 - (1.66f * density), y2 - (3.33f * density), x2 + (16.66f * density), y2 + (16.66f * density));
paint.Color = (Color.ParseColor("#5f6872"));
p0.DrawRoundRect(rounderRectF, 7, 7, paint);
Path path = new Path();
path.MoveTo(x2, y2 - (16.66f * density));
path.LineTo(x2, y2);
path.LineTo(x2 + (16.66f * density), y2 - (2 * density));
path.Close();
p0.DrawPath(path, paint);
paint.StrokeWidth = (3.33f * density);
p0.DrawLine(x1, y1, x2, y2, paint);
SetRightThumbBounds(new RectF(x2 - 25, y1 - 25, x2 + 25, y2 + 25));
}
protected void DrawFill(Android.Graphics.Canvas canvas, Windows.Foundation.Rect fillArea, Android.Graphics.Path fillPath)
{
if (!fillArea.HasZeroArea())
{
var imageBrushFill = Fill as ImageBrush;
if (imageBrushFill != null)
{
imageBrushFill.ScheduleRefreshIfNeeded(fillArea, Invalidate);
imageBrushFill.DrawBackground(canvas, fillArea, fillPath);
}
else
{
var fill = Fill ?? SolidColorBrushHelper.Transparent;
var fillPaint = fill.GetFillPaint(fillArea);
canvas.DrawPath(fillPath, fillPaint);
}
}
}
protected override void Draw(Canvas canvas, Rect bounds)
{
RectF arcBounds = mTempBounds;
arcBounds.Set(bounds);
arcBounds.Inset(mStrokeInset, mStrokeInset);
mCurrentBounds.Set(arcBounds);
int saveCount = canvas.Save();
//draw circle trim
float startAngle = (mStartTrim + mRotation) * 360;
float endAngle = (mEndTrim + mRotation) * 360;
float sweepAngle = endAngle - startAngle;
if (sweepAngle != 0)
{
mPaint.Color = new Color(mColor);
mPaint.SetStyle(Paint.Style.Stroke);
canvas.DrawArc(arcBounds, startAngle, sweepAngle, false, mPaint);
}
//draw water wave
if (mWaveProgress < 1.0f)
{
var nColor = new Color(mColor);
mPaint.Color = Color.Argb((int)(Color.GetAlphaComponent(mColor) * (1.0f - mWaveProgress)), Color.GetRedComponent(mColor), Color.GetGreenComponent(mColor), Color.GetBlueComponent(mColor));
mPaint.SetStyle(Paint.Style.Stroke);
float radius = Math.Min(arcBounds.Width(), arcBounds.Height()) / 2.0f;
canvas.DrawCircle(arcBounds.CenterX(), arcBounds.CenterY(), radius * (1.0f + mWaveProgress), mPaint);
}
//draw ball bounce
if (mPathMeasure != null)
{
mPaint.Color = new Color(mBallColor);
mPaint.SetStyle(Paint.Style.Fill);
canvas.DrawCircle(mCurrentPosition[0], mCurrentPosition[1], mSkipBallSize * mScale, mPaint);
}
canvas.RestoreToCount(saveCount);
}
protected override void OnDraw(Android.Graphics.Canvas canvas)
{
//Clean(canvas);
//清空画布
if (circles != null && circles.Count == 4)
{
circles[0].Draw(canvas);
circles[1].Draw(canvas);
circles[2].Draw(canvas);
circles[3].Draw(canvas);
canvas.DrawLine(circles[0].Current_X, circles[0].Current_Y, circles[1].Current_X, circles[1].Current_Y, line);
canvas.DrawLine(circles[1].Current_X, circles[1].Current_Y, circles[3].Current_X, circles[3].Current_Y, line);
canvas.DrawLine(circles[2].Current_X, circles[2].Current_Y, circles[3].Current_X, circles[3].Current_Y, line);
canvas.DrawLine(circles[2].Current_X, circles[2].Current_Y, circles[0].Current_X, circles[0].Current_Y, line);
}
base.OnDraw(canvas);
}
protected override void Draw(Canvas canvas, Rect bounds)
{
int saveCount = canvas.Save();
mTempBounds.Set(Bounds);
mTempBounds.Inset(mStrokeInset, mStrokeInset);
canvas.Rotate(mGroupRotation, mTempBounds.CenterX(), mTempBounds.CenterY());
for (int i = 0; i < 3; i++)
{
if (mLevelSwipeDegrees[i] != 0)
{
mPaint.Color = new Color(mLevelColors[i]);
canvas.DrawArc(mTempBounds, mEndDegrees, mLevelSwipeDegrees[i], false, mPaint);
}
}
canvas.RestoreToCount(saveCount);
}
private void DrawFill(Canvas canvas)
{
if (_drawArea.HasZeroArea())
{
return;
}
if (Fill is ImageBrush imageBrushFill)
{
imageBrushFill.ScheduleRefreshIfNeeded(_drawArea, Invalidate);
imageBrushFill.DrawBackground(canvas, _drawArea, _path);
}
else
{
var fill = Fill ?? SolidColorBrushHelper.Transparent;
var fillPaint = fill.GetFillPaint(_drawArea);
canvas.DrawPath(_path, fillPaint);
}
}
public override void Draw(Android.Graphics.Canvas canvas, MapView mapView, bool shadow)
{
base.Draw(canvas, mapView, shadow);
var paint = new Paint();
paint.AntiAlias = true;
paint.Color = Color.Purple;
// to draw fixed graphics that will not move or scale with the map
//canvas.DrawRect (0, 0, 100, 100, paint);
// to draw graphics at a geocoded location that move and scale with the map
var gp = new GeoPoint((int)41.940542E6, (int)-73.363447E6);
var pt = mapView.Projection.ToPixels(gp, null);
float distance = mapView.Projection.MetersToEquatorPixels(20000);
canvas.DrawRect(pt.X, pt.Y, pt.X + distance, pt.Y + distance, paint);
}