public OsmPath(global::Android.Graphics.Path src) : base(IntPtr.Zero, JniHandleOwnership.DoNotTransfer)
{
if (Handle != IntPtr.Zero)
{
return;
}
if (GetType() != typeof(OsmPath))
{
SetHandle(
global::Android.Runtime.JNIEnv.StartCreateInstance(GetType(), "(Landroid/graphics/Path;)V", new JValue(src)),
JniHandleOwnership.TransferLocalRef);
global::Android.Runtime.JNIEnv.FinishCreateInstance(Handle, "(Landroid/graphics/Path;)V", new JValue(src));
return;
}
if (id_ctor_Landroid_graphics_Path_ == IntPtr.Zero)
{
id_ctor_Landroid_graphics_Path_ = JNIEnv.GetMethodID(class_ref, "<init>", "(Landroid/graphics/Path;)V");
}
SetHandle(
global::Android.Runtime.JNIEnv.StartCreateInstance(class_ref, id_ctor_Landroid_graphics_Path_, new JValue(src)),
JniHandleOwnership.TransferLocalRef);
JNIEnv.FinishCreateInstance(Handle, class_ref, id_ctor_Landroid_graphics_Path_, new JValue(src));
}
/// <summary>
/// Called right before rendering starts.
/// </summary>
/// <param name="target"></param>
/// <param name="view"></param>
protected override void OnBeforeRender(Target2DWrapper <global::Android.Graphics.Canvas> target, View2D view)
{
if (_path == null)
{ // a path to work with does not exist yet.
_path = new global::Android.Graphics.Path();
}
_path.Reset();
}
public static global::Android.Graphics.Path ToPixels(global::Osmdroid.Views.Projection p0, global::System.Collections.Generic.IList <global::Org.Osmdroid.Util.GeoPoint> p1, global::Android.Graphics.Path p2, bool p3)
{
if (id_toPixels_Lorg_osmdroid_views_Projection_Ljava_util_List_Landroid_graphics_Path_Z == IntPtr.Zero)
{
id_toPixels_Lorg_osmdroid_views_Projection_Ljava_util_List_Landroid_graphics_Path_Z = JNIEnv.GetStaticMethodID(class_ref, "toPixels", "(Lorg/osmdroid/views/Projection;Ljava/util/List;Landroid/graphics/Path;Z)Landroid/graphics/Path;");
}
IntPtr native_p1 = global::Android.Runtime.JavaList <global::Org.Osmdroid.Util.GeoPoint> .ToLocalJniHandle(p1);
global::Android.Graphics.Path __ret = global::Java.Lang.Object.GetObject <global::Android.Graphics.Path> (JNIEnv.CallStaticObjectMethod(class_ref, id_toPixels_Lorg_osmdroid_views_Projection_Ljava_util_List_Landroid_graphics_Path_Z, new JValue(p0), new JValue(native_p1), new JValue(p2), new JValue(p3)), JniHandleOwnership.TransferLocalRef);
JNIEnv.DeleteLocalRef(native_p1);
return(__ret);
}
// /// <summary>
// /// Holds the bitmap cache.
// /// </summary>
// private global::Android.Graphics.Bitmap _cache;
/// <summary>
/// Called right before rendering starts.
/// </summary>
/// <param name="target"></param>
/// <param name="scenes"></param>
/// <param name="view"></param>
protected override void OnBeforeRender(Target2DWrapper <global::Android.Graphics.Canvas> target,
List <Scene2D> scenes, View2D view)
{
// if (_cache == null || _cache.Width != target.Width || _cache.Height != target.Height) {
// // create a bitmap and render there.
// _cache = global::Android.Graphics.Bitmap.CreateBitmap ((int)target.Width, (int)target.Height,
// global::Android.Graphics.Bitmap.Config.Argb8888);
// } else {
// // clear the cache???
// }
// target.BackTarget = target.Target;
// target.Target = new global::Android.Graphics.Canvas(_cache);
// target.Target.DrawColor(global::Android.Graphics.Color.Transparent);
//
// target.Tag = _cache;
_path = new global::Android.Graphics.Path();
}
private void DrawPath(Canvas canvas, global::Android.Graphics.Path path)
{
var scale = Context.DpToPixels(1);
canvas.Save();
var strokeThickness = Element.StrokeThickness;
if (Element.RenderTransform is ScaleTransform scaleTransform)
{
strokeThickness = System.Math.Min(scaleTransform.ScaleX, scaleTransform.ScaleY);
}
try
{
var paint = new Paint(PaintFlags.AntiAlias);
canvas.Scale(scale, scale);
if (Element.Fill.A > 0)
{
paint.StrokeWidth = strokeThickness;
paint.StrokeMiter = 10f;
paint.SetStyle(Paint.Style.Fill);
paint.Color = Element.Fill.ToAndroid();
canvas.DrawPath(path, paint);
}
paint.StrokeWidth = strokeThickness;
paint.StrokeMiter = 10f;
paint.SetStyle(Paint.Style.Stroke);
paint.Color = Element.Stroke.ToAndroid();
canvas.DrawPath(path, paint);
}
finally
{
canvas.Restore();
}
}
void UpdatePathInside()
{
if (_size <= 0)
return;
if (_pathInside == null)
_pathInside = new global::Android.Graphics.Path ();
else
_pathInside.Reset ();
_pathInside.AddCircle(_centerX, _centerY, _size * 0.5f, Path.Direction.Cw);
// float x1 = _centerX + _size / 1.41f;
// float x2 = _centerX + _size / 2.82f;
// float x3 = _centerX - _size / 2.82f;
// float x4 = _centerX - _size / 1.41f;
//
// float y1 = _centerY + _size / 1.41f;
// float y2 = _centerY + _size / 2.82f;
// float y3 = _centerY - _size / 2.82f;
// float y4 = _centerY - _size / 1.41f;
//
// _pathInside.MoveTo (x1, y2);
// _pathInside.LineTo (x2, y1);
// _pathInside.LineTo (_centerX, y2);
// _pathInside.LineTo (x3, y1);
// _pathInside.LineTo (x4, y2);
// _pathInside.LineTo (x3, _centerY);
// _pathInside.LineTo (x4, y3);
// _pathInside.LineTo (x3, y4);
// _pathInside.LineTo (_centerX, y3);
// _pathInside.LineTo (x2, y4);
// _pathInside.LineTo (x1, y3);
// _pathInside.LineTo (x2, _centerY);
// _pathInside.LineTo (x1, y2);
}
public void DrawPath(IEnumerable<PathOp> ops, Pen pen = null, Brush brush = null)
{
if (pen == null && brush == null)
return;
using (var path = new global::Android.Graphics.Path ()) {
var bb = new BoundingBoxBuilder ();
Point? prevPoint = null;
foreach (var op in ops) {
var mt = op as MoveTo;
if (mt != null) {
var p = mt.Point;
path.MoveTo ((float)p.X, (float)p.Y);
bb.Add (p);
prevPoint = p;
continue;
}
var lt = op as LineTo;
if (lt != null) {
var p = lt.Point;
path.LineTo ((float)p.X, (float)p.Y);
bb.Add (p);
prevPoint = p;
continue;
}
var at = op as ArcTo;
if (at != null) {
var p = at.Point;
if (!prevPoint.HasValue) {
throw new NotSupportedException("Cannot begin path with Arc.");
}
var pp = prevPoint.Value;
Point c1, c2;
at.GetCircles(pp, out c1, out c2);
var circleCenter = at.LargeArc ^ !at.SweepClockwise ? c2 : c1;
var rect = new Rect(circleCenter - at.Radius, at.Radius * 2);
var startAngle = Conversions.RadToDeg((float)Math.Atan2(pp.Y - circleCenter.Y, pp.X - circleCenter.X));
var endAngle = Conversions.RadToDeg((float)Math.Atan2(p.Y - circleCenter.Y, p.X - circleCenter.X));
var sweepAngle = endAngle - startAngle;
if (at.SweepClockwise && sweepAngle < 0) {
// If we want to go CW, sweepAngle needs to be positive
sweepAngle += 360.0f;
}
else if (!at.SweepClockwise && sweepAngle > 0) {
// If we want to go CCW, sweepAngle needs to be negative
sweepAngle -= 360.0f;
}
path.AddArc(Conversions.GetRectF(rect), startAngle, sweepAngle);
bb.Add (p);
prevPoint = p;
continue;
}
var ct = op as CurveTo;
if (ct != null) {
var p = ct.Point;
var c1 = ct.Control1;
var c2 = ct.Control2;
path.CubicTo ((float)c1.X, (float)c1.Y, (float)c2.X, (float)c2.Y, (float)p.X, (float)p.Y);
bb.Add (p);
bb.Add (c1);
bb.Add (c2);
prevPoint = p;
continue;
}
var cp = op as ClosePath;
if (cp != null) {
path.Close ();
continue;
}
throw new NotSupportedException ("Path Op " + op);
}
var frame = bb.BoundingBox;
if (brush != null) {
var paint = GetBrushPaint (brush, frame);
graphics.DrawPath (path, paint);
}
if (pen != null) {
var paint = GetPenPaint (pen);
graphics.DrawPath (path, paint);
}
}
}
public Bitmap DrawArrow (double direction)
{
int w = 48;
int h = 48;
int w2 = w / 2;
int h2 = w / 2;
double rad1 = direction / 180.0 * Math.PI;
double rad2 = (direction + 180.0 + 30.0) / 180.0 * Math.PI;
double rad3 = (direction + 180.0 - 30.0) / 180.0 * Math.PI;
double rad4 = (direction + 180.0) / 180.0 * Math.PI;
PointF p1 = new PointF((float) (w2 + w2 * Math.Sin (rad1)), (float) (h2 + h2 * Math.Cos (rad1)));
PointF p2 = new PointF((float) (w2 + w2 * Math.Sin (rad2)), (float) (h2 + h2 * Math.Cos (rad2)));
PointF p3 = new PointF((float) (w2 + w2 * Math.Sin (rad3)), (float) (h2 + h2 * Math.Cos (rad3)));
PointF p4 = new PointF((float) (w2 + w / 3 * Math.Sin (rad4)), (float) (h2 + h / 3 * Math.Cos (rad4)));
Bitmap b = Bitmap.CreateBitmap(w, h, Bitmap.Config.Argb8888);
Canvas c = new Canvas(b);
Paint light = new Paint (PaintFlags.AntiAlias);
Paint dark = new Paint (PaintFlags.AntiAlias);
Paint black = new Paint (PaintFlags.AntiAlias);
light.Color = new Color (128, 0, 0, 255);
light.StrokeWidth = 0f;
light.SetStyle (Paint.Style.FillAndStroke);
dark.Color = new Color (255, 0, 0, 255);
dark.StrokeWidth = 0f;
dark.SetStyle (Paint.Style.FillAndStroke);
black.Color = new Color (0, 0, 0, 255);
black.StrokeWidth = 0f;
black.SetStyle (Paint.Style.Stroke);
int cx = c.Width / 2 - 1;
int cy = c.Height / 2 - 1;
global::Android.Graphics.Path path1 = new global::Android.Graphics.Path ();
global::Android.Graphics.Path path2 = new global::Android.Graphics.Path ();
global::Android.Graphics.Path path3 = new global::Android.Graphics.Path ();
path1.MoveTo (p1.X,p1.Y);
path1.LineTo (p2.X,p2.Y);
path1.LineTo (p4.X,p4.Y);
path1.LineTo (p1.X,p1.Y);
path2.MoveTo (p1.X,p1.Y);
path2.LineTo (p3.X,p3.Y);
path2.LineTo (p4.X,p4.Y);
path2.LineTo (p1.X,p1.Y);
path3.MoveTo (p1.X,p1.Y);
path3.LineTo (p2.X,p2.Y);
path3.LineTo (p4.X,p4.Y);
path3.LineTo (p1.X,p1.Y);
path3.LineTo (p3.X,p3.Y);
path3.LineTo (p4.X,p4.Y);
c.DrawPath (path1, light);
c.DrawPath (path2, dark);
c.DrawPath (path3, black);
// UIGraphics.BeginImageContext (new SizeF(64, 64));
//
// using (CGContext cont = UIGraphics.GetCurrentContext()) {
//
// using (CGPath path = new CGPath()) {
//
// cont.SetLineWidth (1f);
// cont.SetRGBStrokeColor (0f, 0, 0, 1);
// cont.SetRGBFillColor (1f, 0, 0, 1);
// path.AddLines (new PointF[] { p1, p2, p4 });
// path.CloseSubpath ();
//
// cont.AddPath (path);
// cont.DrawPath (CGPathDrawingMode.FillStroke);
//
// }
//
// using (CGPath path = new CGPath()) {
//
// cont.SetRGBStrokeColor (0f, 0, 0, 1);
// cont.SetRGBFillColor (.5f, 0, 0, 1);
// path.AddLines (new PointF[] { p1, p3, p4 });
// path.CloseSubpath ();
//
// cont.AddPath (path);
// cont.DrawPath (CGPathDrawingMode.FillStroke);
//
// }
//
// return UIGraphics.GetImageFromCurrentImageContext ();
//
// }
//
// UIGraphics.EndImageContext ();
return b;
}
protected override void OnDraw(Canvas canvas)
{
var trans = Element.RenderTransform ?? new IdentityTransform();
var path = new global::Android.Graphics.Path();
foreach (var command in PathDataParser.ToAbsolute(PathDataParser.Parse(Element.Data)))
{
switch (command.Type)
{
case PathDataParser.CommandType.MoveTo:
{
var pt = trans.TransformPoint(
new System.Drawing.PointF(command.Arguments[0], command.Arguments[1]));
path.MoveTo(pt.X, pt.Y);
}
break;
case PathDataParser.CommandType.LineTo:
{
var pt = trans.TransformPoint(
new System.Drawing.PointF(command.Arguments[0], command.Arguments[1]));
path.LineTo(pt.X, pt.Y);
}
break;
case PathDataParser.CommandType.QBezier:
{
var pt = trans.TransformPoint(
new System.Drawing.PointF(command.Arguments[0], command.Arguments[1]));
var pt2 = trans.TransformPoint(
new System.Drawing.PointF(command.Arguments[2], command.Arguments[3]));
path.QuadTo(pt.X, pt.Y, pt2.X, pt2.Y);
}
break;
case PathDataParser.CommandType.Bezier:
{
var pt = trans.TransformPoint(
new System.Drawing.PointF(command.Arguments[0], command.Arguments[1]));
var pt2 = trans.TransformPoint(
new System.Drawing.PointF(command.Arguments[2], command.Arguments[3]));
var pt3 = trans.TransformPoint(
new System.Drawing.PointF(command.Arguments[4], command.Arguments[5]));
path.CubicTo(pt.X, pt.Y, pt2.X, pt2.Y, pt3.X, pt3.Y);
}
break;
case PathDataParser.CommandType.Close:
path.Close();
DrawPath(canvas, path);
path = new global::Android.Graphics.Path();
break;
}
}
if (!path.IsEmpty)
{
DrawPath(canvas, path);
}
}
/// <summary>
/// Draws image of arrow with given direction.
/// </summary>
/// <returns>Bitmap of arrow.</returns>
/// <param name="direction">Direction of the arrow.</param>
internal Bitmap DrawArrow (double direction)
{
int w = 48;
int h = 48;
int w2 = w / 2;
int h2 = w / 2;
double rad1 = direction / 180.0 * Math.PI;
double rad2 = (direction + 180.0 + 30.0) / 180.0 * Math.PI;
double rad3 = (direction + 180.0 - 30.0) / 180.0 * Math.PI;
double rad4 = (direction + 180.0) / 180.0 * Math.PI;
PointF p1 = new PointF((float) (w2 + w2 * Math.Sin (rad1)), (float) (h2 + h2 * Math.Cos (rad1)));
PointF p2 = new PointF((float) (w2 + w2 * Math.Sin (rad2)), (float) (h2 + h2 * Math.Cos (rad2)));
PointF p3 = new PointF((float) (w2 + w2 * Math.Sin (rad3)), (float) (h2 + h2 * Math.Cos (rad3)));
PointF p4 = new PointF((float) (w2 + w / 3 * Math.Sin (rad4)), (float) (h2 + h / 3 * Math.Cos (rad4)));
Bitmap b = Bitmap.CreateBitmap(w, h, Bitmap.Config.Argb8888);
using(Canvas c = new Canvas(b)) {
int cx = c.Width / 2 - 1;
int cy = c.Height / 2 - 1;
global::Android.Graphics.Path path1 = new global::Android.Graphics.Path ();
global::Android.Graphics.Path path2 = new global::Android.Graphics.Path ();
global::Android.Graphics.Path path3 = new global::Android.Graphics.Path ();
path1.MoveTo (p1.X,p1.Y);
path1.LineTo (p2.X,p2.Y);
path1.LineTo (p4.X,p4.Y);
path1.LineTo (p1.X,p1.Y);
path2.MoveTo (p1.X,p1.Y);
path2.LineTo (p3.X,p3.Y);
path2.LineTo (p4.X,p4.Y);
path2.LineTo (p1.X,p1.Y);
path3.MoveTo (p1.X,p1.Y);
path3.LineTo (p2.X,p2.Y);
path3.LineTo (p4.X,p4.Y);
path3.LineTo (p1.X,p1.Y);
path3.LineTo (p3.X,p3.Y);
path3.LineTo (p4.X,p4.Y);
c.DrawPath (path1, light);
c.DrawPath (path2, dark);
c.DrawPath (path3, black);
}
return b;
}
public void DrawPath(IEnumerable<PathOp> ops, Pen pen = null, Brush brush = null)
{
if (pen == null && brush == null)
return;
using (var path = new global::Android.Graphics.Path ()) {
var bb = new BoundingBoxBuilder ();
foreach (var op in ops) {
var mt = op as MoveTo;
if (mt != null) {
var p = mt.Point;
path.MoveTo ((float)p.X, (float)p.Y);
bb.Add (p);
continue;
}
var lt = op as LineTo;
if (lt != null) {
var p = lt.Point;
path.LineTo ((float)p.X, (float)p.Y);
bb.Add (p);
continue;
}
var at = op as ArcTo;
if (at != null) {
var p = at.Point;
path.LineTo ((float)p.X, (float)p.Y);
bb.Add (p);
continue;
}
var ct = op as CurveTo;
if (ct != null) {
var p = ct.Point;
var c1 = ct.Control1;
var c2 = ct.Control2;
path.CubicTo ((float)c1.X, (float)c1.Y, (float)c2.X, (float)c2.Y, (float)p.X, (float)p.Y);
bb.Add (p);
bb.Add (c1);
bb.Add (c2);
continue;
}
var cp = op as ClosePath;
if (cp != null) {
path.Close ();
continue;
}
throw new NotSupportedException ("Path Op " + op);
}
var frame = bb.BoundingBox;
if (brush != null) {
var paint = GetBrushPaint (brush, frame);
graphics.DrawPath (path, paint);
}
if (pen != null) {
var paint = GetPenPaint (pen);
graphics.DrawPath (path, paint);
}
}
}
public void DrawLineTextSegment(Target2DWrapper <global::Android.Graphics.Canvas> target, double[] xTransformed, double[] yTransformed, string text, int color,
double size, int?haloColor, int?haloRadius, double middlePosition, float[] characterWidths, double textLength,
float characterHeight)
{
_paint.Color = new global::Android.Graphics.Color(color);
_paint.SetStyle(global::Android.Graphics.Paint.Style.Fill);
// see if the text is 'upside down'.
double averageAngle = 0;
double first = middlePosition - (textLength / 2.0);
PointF2D current = Polyline2D.PositionAtPosition(xTransformed, yTransformed, first);
for (int idx = 0; idx < text.Length; idx++)
{
double nextPosition = middlePosition - (textLength / 2.0) + ((textLength / (text.Length)) * (idx + 1));
PointF2D next = Polyline2D.PositionAtPosition(xTransformed, yTransformed, nextPosition);
// Translate to the final position, the center of line-segment between 'current' and 'next'
//PointF2D position = current + ((next - current) / 2.0);
// calculate the angle.
VectorF2D vector = next - current;
VectorF2D horizontal = new VectorF2D(1, 0);
double angleDegrees = ((Degree)horizontal.Angle(vector)).Value;
averageAngle = averageAngle + angleDegrees;
current = next;
}
averageAngle = averageAngle / text.Length;
// reverse if 'upside down'.
double[] xText = xTransformed;
double[] yText = yTransformed;
if (averageAngle > 90 && averageAngle < 180 + 90)
{ // the average angle is > PI => means upside down.
xText = xTransformed.Reverse <double>().ToArray <double>();
yText = yTransformed.Reverse <double>().ToArray <double>();
}
// calculate a central position along the line.
first = middlePosition - (textLength / 2.0);
current = Polyline2D.PositionAtPosition(xText, yText, first);
double nextPosition2 = first;
for (int idx = 0; idx < text.Length; idx++)
{
nextPosition2 = nextPosition2 + characterWidths[idx];
//double nextPosition = middle - (textLength / 2.0) + ((textLength / (text.Length)) * (idx + 1));
PointF2D next = Polyline2D.PositionAtPosition(xText, yText, nextPosition2);
char currentChar = text[idx];
global::Android.Graphics.Path characterPath = new global::Android.Graphics.Path();
_paint.GetTextPath(text, idx, idx + 1, 0, 0, characterPath);
using (characterPath)
{
// Transformation matrix to move the character to the correct location.
// Note that all actions on the Matrix class are prepended, so we apply them in reverse.
var transform = new Matrix();
// Translate to the final position, the center of line-segment between 'current' and 'next'
PointF2D position = current;
//PointF2D position = current + ((next - current) / 2.0);
//double[] transformed = this.Tranform(position[0], position[1]);
transform.SetTranslate((float)position[0], (float)position[1]);
// calculate the angle.
VectorF2D vector = next - current;
VectorF2D horizontal = new VectorF2D(1, 0);
double angleDegrees = ((Degree)horizontal.Angle(vector)).Value;
// Rotate the character
transform.PreRotate((float)angleDegrees);
// Translate the character so the centre of its base is over the origin
transform.PreTranslate(0, characterHeight / 2.5f);
//transform.Scale((float)this.FromPixels(_target, _view, 1),
// (float)this.FromPixels(_target, _view, 1));
characterPath.Transform(transform);
if (haloColor.HasValue && haloRadius.HasValue && haloRadius.Value > 0)
{
_paint.SetStyle(global::Android.Graphics.Paint.Style.FillAndStroke);
_paint.StrokeWidth = haloRadius.Value;
_paint.Color = new global::Android.Graphics.Color(haloColor.Value);
using (global::Android.Graphics.Path haloPath = new global::Android.Graphics.Path())
{
_paint.GetFillPath(characterPath, haloPath);
// Draw the character
target.Target.DrawPath(haloPath, _paint);
}
}
// Draw the character
_paint.SetStyle(global::Android.Graphics.Paint.Style.Fill);
_paint.StrokeWidth = 0;
_paint.Color = new global::Android.Graphics.Color(color);
target.Target.DrawPath(characterPath, _paint);
}
current = next;
}
}
public void DrawPath(IEnumerable <PathOp> ops, Pen pen = null, Brush brush = null)
{
if (pen == null && brush == null)
{
return;
}
using (var path = new global::Android.Graphics.Path()) {
var bb = new BoundingBoxBuilder();
foreach (var op in ops)
{
var mt = op as MoveTo;
if (mt != null)
{
var p = mt.Point;
path.MoveTo((float)p.X, (float)p.Y);
bb.Add(p);
continue;
}
var lt = op as LineTo;
if (lt != null)
{
var p = lt.Point;
path.LineTo((float)p.X, (float)p.Y);
bb.Add(p);
continue;
}
var at = op as ArcTo;
if (at != null)
{
var p = at.Point;
path.LineTo((float)p.X, (float)p.Y);
bb.Add(p);
continue;
}
var ct = op as CurveTo;
if (ct != null)
{
var p = ct.Point;
var c1 = ct.Control1;
var c2 = ct.Control2;
path.CubicTo((float)c1.X, (float)c1.Y, (float)c2.X, (float)c2.Y, (float)p.X, (float)p.Y);
bb.Add(p);
bb.Add(c1);
bb.Add(c2);
continue;
}
var cp = op as ClosePath;
if (cp != null)
{
path.Close();
continue;
}
throw new NotSupportedException("Path Op " + op);
}
var frame = bb.BoundingBox;
if (brush != null)
{
var paint = GetBrushPaint(brush, frame);
graphics.DrawPath(path, paint);
}
if (pen != null)
{
var paint = GetPenPaint(pen);
graphics.DrawPath(path, paint);
}
}
}
public PathShape(global::Android.Graphics.Path path, float stdWidth, float stdHeight) /* MethodBuilder.Create */
{
}
void UpdatePathArrow()
{
if (_pathArrow == null)
_pathArrow = new global::Android.Graphics.Path ();
else
_pathArrow.Reset ();
// Create arrow
// We have a direction, so draw an arrow
var direction = 180.0 - ((DirectionArrow)Element).Direction;
if (direction < 0)
direction += 360.0;
direction = direction % 360.0;
double rad1 = direction / 180.0 * Math.PI;
double rad2 = (direction + 180.0 + 30.0) / 180.0 * Math.PI;
double rad3 = (direction + 180.0 - 30.0) / 180.0 * Math.PI;
double rad4 = (direction + 180.0) / 180.0 * Math.PI;
PointF p1 = new PointF ((float)(_centerX + _size * Math.Sin (rad1)), (float)(_centerY + _size * Math.Cos (rad1)));
PointF p2 = new PointF ((float)(_centerX + _size * Math.Sin (rad2)), (float)(_centerY + _size * Math.Cos (rad2)));
PointF p3 = new PointF ((float)(_centerX + _size * Math.Sin (rad3)), (float)(_centerY + _size * Math.Cos (rad3)));
PointF p4 = new PointF ((float)(_centerX + _sizeSmall * Math.Sin (rad4)), (float)(_centerY + _sizeSmall * Math.Cos (rad4)));
_pathArrow.MoveTo (p1.X, p1.Y);
_pathArrow.LineTo (p2.X, p2.Y);
_pathArrow.LineTo (p4.X, p4.Y);
_pathArrow.LineTo (p3.X, p3.Y);
_pathArrow.LineTo (p1.X, p1.Y);
}
public static Bitmap Draw(int width, int height, double direction)
{
if (width == 0 || height == 0)
{
return(null);
}
int w2 = width / 2;
int h2 = height / 2;
Paint light = new Paint(PaintFlags.AntiAlias);
Paint dark = new Paint(PaintFlags.AntiAlias);
Paint black = new Paint(PaintFlags.AntiAlias);
light.Color = new Color(128, 0, 0, 255);
light.StrokeWidth = 0f;
light.SetStyle(Paint.Style.FillAndStroke);
dark.Color = new Color(255, 0, 0, 255);
dark.StrokeWidth = 0f;
dark.SetStyle(Paint.Style.FillAndStroke);
black.Color = new Color(0, 0, 0, 255);
black.StrokeWidth = 0f;
black.SetStyle(Paint.Style.Stroke);
// Values of direction are between 0° and 360°, but for drawing we need -180° to +180°
direction -= 180;
double rad1 = direction / 180.0 * Math.PI;
double rad2 = (direction + 180.0 + 30.0) / 180.0 * Math.PI;
double rad3 = (direction + 180.0 - 30.0) / 180.0 * Math.PI;
double rad4 = (direction + 180.0) / 180.0 * Math.PI;
PointF p1 = new PointF((float)(w2 + w2 * Math.Sin(rad1)), (float)(h2 + h2 * Math.Cos(rad1)));
PointF p2 = new PointF((float)(w2 + w2 * Math.Sin(rad2)), (float)(h2 + h2 * Math.Cos(rad2)));
PointF p3 = new PointF((float)(w2 + w2 * Math.Sin(rad3)), (float)(h2 + h2 * Math.Cos(rad3)));
PointF p4 = new PointF((float)(w2 + width / 3 * Math.Sin(rad4)), (float)(h2 + height / 3 * Math.Cos(rad4)));
Bitmap b = Bitmap.CreateBitmap(width, height, Bitmap.Config.Argb8888);
using (Canvas c = new Canvas(b)) {
int cx = c.Width / 2 - 1;
int cy = c.Height / 2 - 1;
global::Android.Graphics.Path path1 = new global::Android.Graphics.Path();
global::Android.Graphics.Path path2 = new global::Android.Graphics.Path();
global::Android.Graphics.Path path3 = new global::Android.Graphics.Path();
path1.MoveTo(p1.X, p1.Y);
path1.LineTo(p2.X, p2.Y);
path1.LineTo(p4.X, p4.Y);
path1.LineTo(p1.X, p1.Y);
path2.MoveTo(p1.X, p1.Y);
path2.LineTo(p3.X, p3.Y);
path2.LineTo(p4.X, p4.Y);
path2.LineTo(p1.X, p1.Y);
path3.MoveTo(p1.X, p1.Y);
path3.LineTo(p2.X, p2.Y);
path3.LineTo(p4.X, p4.Y);
path3.LineTo(p1.X, p1.Y);
path3.LineTo(p3.X, p3.Y);
path3.LineTo(p4.X, p4.Y);
light.Color = new Color(128, 0, 0, 255);
dark.Color = new Color(255, 0, 0, 255);
black.Color = new Color(0, 0, 0, 255);
c.DrawPath(path1, light);
c.DrawPath(path2, dark);
c.DrawPath(path3, black);
}
return(b);
}
public PaintView(Context c, global::Android.Util.IAttributeSet att) : base(c, att)
{
mPath = new global::Android.Graphics.Path();
mBitmapPaint = new Paint(PaintFlags.AntiAlias);
}
public static Bitmap Draw(int width, int height, double direction)
{
if(width == 0 || height == 0)
return null;
int w2 = width / 2;
int h2 = height / 2;
Paint light = new Paint(PaintFlags.AntiAlias);
Paint dark = new Paint(PaintFlags.AntiAlias);
Paint black = new Paint(PaintFlags.AntiAlias);
light.Color = new Color(128, 0, 0, 255);
light.StrokeWidth = 0f;
light.SetStyle(Paint.Style.FillAndStroke);
dark.Color = new Color(255, 0, 0, 255);
dark.StrokeWidth = 0f;
dark.SetStyle(Paint.Style.FillAndStroke);
black.Color = new Color(0, 0, 0, 255);
black.StrokeWidth = 0f;
black.SetStyle(Paint.Style.Stroke);
// Values of direction are between 0° and 360°, but for drawing we need -180° to +180°
direction -= 180;
double rad1 = direction / 180.0 * Math.PI;
double rad2 = (direction + 180.0 + 30.0) / 180.0 * Math.PI;
double rad3 = (direction + 180.0 - 30.0) / 180.0 * Math.PI;
double rad4 = (direction + 180.0) / 180.0 * Math.PI;
PointF p1 = new PointF((float) (w2 + w2 * Math.Sin (rad1)), (float) (h2 + h2 * Math.Cos (rad1)));
PointF p2 = new PointF((float) (w2 + w2 * Math.Sin (rad2)), (float) (h2 + h2 * Math.Cos (rad2)));
PointF p3 = new PointF((float) (w2 + w2 * Math.Sin (rad3)), (float) (h2 + h2 * Math.Cos (rad3)));
PointF p4 = new PointF((float) (w2 + width / 3 * Math.Sin (rad4)), (float) (h2 + height / 3 * Math.Cos (rad4)));
Bitmap b = Bitmap.CreateBitmap(width, height, Bitmap.Config.Argb8888);
using(Canvas c = new Canvas(b)) {
int cx = c.Width / 2 - 1;
int cy = c.Height / 2 - 1;
global::Android.Graphics.Path path1 = new global::Android.Graphics.Path ();
global::Android.Graphics.Path path2 = new global::Android.Graphics.Path ();
global::Android.Graphics.Path path3 = new global::Android.Graphics.Path ();
path1.MoveTo (p1.X,p1.Y);
path1.LineTo (p2.X,p2.Y);
path1.LineTo (p4.X,p4.Y);
path1.LineTo (p1.X,p1.Y);
path2.MoveTo (p1.X,p1.Y);
path2.LineTo (p3.X,p3.Y);
path2.LineTo (p4.X,p4.Y);
path2.LineTo (p1.X,p1.Y);
path3.MoveTo (p1.X,p1.Y);
path3.LineTo (p2.X,p2.Y);
path3.LineTo (p4.X,p4.Y);
path3.LineTo (p1.X,p1.Y);
path3.LineTo (p3.X,p3.Y);
path3.LineTo (p4.X,p4.Y);
light.Color = new Color (128, 0, 0, 255);
dark.Color = new Color (255, 0, 0, 255);
black.Color = new Color (0, 0, 0, 255);
c.DrawPath (path1, light);
c.DrawPath (path2, dark);
c.DrawPath (path3, black);
}
return b;
}
void UpdatePathUnknown()
{
if (_size <= 0)
return;
if (_pathUnknown == null)
_pathUnknown = new global::Android.Graphics.Path ();
else
_pathUnknown.Reset ();
float x1 = _centerX + _size * 0.5f;
float x2 = _centerX - _size * 0.5f;
float y1 = _centerY + _size * 0.5f;
float y2 = _centerY - _size * 0.5f;
_pathUnknown.MoveTo(x1, y1);
_pathUnknown.LineTo(x2, y2);
_pathUnknown.MoveTo(x1, y2);
_pathUnknown.LineTo(x2, y1);
}
/// <summary>
/// Draws text.
/// </summary>
/// <param name="target"></param>
/// <param name="x"></param>
/// <param name="y"></param>
/// <param name="text"></param>
/// <param name="size"></param>
protected override void DrawText(Target2DWrapper <global::Android.Graphics.Canvas> target, double x, double y,
string text, int color, double size, int?haloColor, int?haloRadius, string fontName)
{
double[] transformed = this.Tranform(x, y);
float xPixels = (float)transformed[0];
float yPixels = (float)transformed[1];
float textSize = this.ToPixels(size);
//transformed = this.Tranform(x + size, y);
//float textSize = 10;
_paint.AntiAlias = true;
_paint.SubpixelText = true;
_paint.TextSize = textSize;
// get some metrics on the texts.
float[] characterWidths = new float[text.Length];
_paint.GetTextWidths(text, characterWidths);
//for (int idx = 0; idx < characterWidths.Length; idx++)
//{
// characterWidths[idx] = _target, _view, characterWidths[idx];
//}
var characterHeight = (float)size;
var textLength = characterWidths.Sum();
// center is default.
xPixels = xPixels - (textLength / 2.0f);
PointF2D current = new PointF2D(xPixels, yPixels);
for (int idx = 0; idx < text.Length; idx++)
{
char currentChar = text[idx];
global::Android.Graphics.Path characterPath = new global::Android.Graphics.Path();
_paint.GetTextPath(text, idx, idx + 1, 0, 0, characterPath);
using (characterPath)
{
// Transformation matrix to move the character to the correct location.
// Note that all actions on the Matrix class are prepended, so we apply them in reverse.
var transform = new Matrix();
// Translate to the final position, the center of line-segment between 'current' and 'next'
PointF2D position = current;
//transformed = this.Tranform(position[0], position[1]);
transform.SetTranslate((float)position[0], (float)position[1]);
// Translate the character so the centre of its base is over the origin
transform.PreTranslate(0, characterHeight / 2.5f);
//transform.Scale((float)this.FromPixels(_target, _view, 1),
// (float)this.FromPixels(_target, _view, 1));
characterPath.Transform(transform);
if (haloColor.HasValue && haloRadius.HasValue && haloRadius.Value > 0)
{
_paint.SetStyle(global::Android.Graphics.Paint.Style.FillAndStroke);
_paint.StrokeWidth = haloRadius.Value;
_paint.Color = new global::Android.Graphics.Color(haloColor.Value);
using (global::Android.Graphics.Path haloPath = new global::Android.Graphics.Path())
{
_paint.GetFillPath(characterPath, haloPath);
// Draw the character
target.Target.DrawPath(haloPath, _paint);
}
}
// Draw the character
_paint.SetStyle(global::Android.Graphics.Paint.Style.Fill);
_paint.StrokeWidth = 0;
_paint.Color = new global::Android.Graphics.Color(color);
target.Target.DrawPath(characterPath, _paint);
}
current = new PointF2D(current[0] + characterWidths[idx], current[1]);
}
}
public virtual global::Android.Graphics.Path ToPath(global::Android.Graphics.Path path) /* MethodBuilder.Create */
{
return(default(global::Android.Graphics.Path));
}
public virtual global::Android.Graphics.Path ToPath(global::Android.Graphics.Path path, int width, int height, int edge, int numSample) /* MethodBuilder.Create */
{
return(default(global::Android.Graphics.Path));
}
public static Bitmap getRoundedShape(Bitmap scaleBitmapImage,int targetint)
{
int targetWidth = targetint;
int targetHeight = targetint;
Bitmap targetBitmap = Bitmap.CreateBitmap(targetWidth,
targetHeight,Bitmap.Config.Argb8888);
Canvas canvas = new Canvas(targetBitmap);
global::Android.Graphics.Path path = new global::Android.Graphics.Path();
path.AddCircle(((float) targetWidth - 1) / 2,
((float) targetHeight - 1) / 2,
(Math.Min(((float) targetWidth),
((float) targetHeight)) / 2),
global::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 DrawPath(IEnumerable <PathOp> ops, Pen pen = null, Brush brush = null)
{
if (pen == null && brush == null)
{
return;
}
using (var path = new global::Android.Graphics.Path()) {
var bb = new BoundingBoxBuilder();
Point?prevPoint = null;
foreach (var op in ops)
{
var mt = op as MoveTo;
if (mt != null)
{
var p = mt.Point;
path.MoveTo((float)p.X, (float)p.Y);
bb.Add(p);
prevPoint = p;
continue;
}
var lt = op as LineTo;
if (lt != null)
{
var p = lt.Point;
path.LineTo((float)p.X, (float)p.Y);
bb.Add(p);
prevPoint = p;
continue;
}
var at = op as ArcTo;
if (at != null)
{
var p = at.Point;
if (!prevPoint.HasValue)
{
throw new NotSupportedException("Cannot begin path with Arc.");
}
var pp = prevPoint.Value;
Point c1, c2;
at.GetCircles(pp, out c1, out c2);
var circleCenter = at.LargeArc ^ !at.SweepClockwise ? c2 : c1;
var rect = new Rect(circleCenter - at.Radius, at.Radius * 2);
var startAngle = Conversions.RadToDeg((float)Math.Atan2(pp.Y - circleCenter.Y, pp.X - circleCenter.X));
var endAngle = Conversions.RadToDeg((float)Math.Atan2(p.Y - circleCenter.Y, p.X - circleCenter.X));
var sweepAngle = endAngle - startAngle;
if (at.SweepClockwise && sweepAngle < 0)
{
// If we want to go CW, sweepAngle needs to be positive
sweepAngle += 360.0f;
}
else if (!at.SweepClockwise && sweepAngle > 0)
{
// If we want to go CCW, sweepAngle needs to be negative
sweepAngle -= 360.0f;
}
path.AddArc(Conversions.GetRectF(rect), startAngle, sweepAngle);
bb.Add(p);
prevPoint = p;
continue;
}
var ct = op as CurveTo;
if (ct != null)
{
var p = ct.Point;
var c1 = ct.Control1;
var c2 = ct.Control2;
path.CubicTo((float)c1.X, (float)c1.Y, (float)c2.X, (float)c2.Y, (float)p.X, (float)p.Y);
bb.Add(p);
bb.Add(c1);
bb.Add(c2);
prevPoint = p;
continue;
}
var cp = op as ClosePath;
if (cp != null)
{
path.Close();
continue;
}
throw new NotSupportedException("Path Op " + op);
}
var frame = bb.BoundingBox;
if (brush != null)
{
var paint = GetBrushPaint(brush, frame);
graphics.DrawPath(path, paint);
}
if (pen != null)
{
var paint = GetPenPaint(pen);
graphics.DrawPath(path, paint);
}
}
}
/// <summary>
/// Called right before rendering starts.
/// </summary>
/// <param name="target"></param>
/// <param name="scenes"></param>
/// <param name="view"></param>
protected override void OnBeforeRender(Target2DWrapper <global::Android.Graphics.Canvas> target, View2D view)
{
_path = new global::Android.Graphics.Path();
}
