/// <summary>
///
/// </summary>
/// <param name="qbezier"></param>
/// <param name="point"></param>
/// <param name="dx"></param>
/// <param name="dy"></param>
/// <returns></returns>
public static bool Contains(XQBezier qbezier, Vector2 point, double dx, double dy)
{
Vector2[] vertices = new Vector2[3];
int k;
Vector2[] convexHull;
vertices[0] = new Vector2(qbezier.Point1.X + dx, qbezier.Point1.Y + dy);
vertices[1] = new Vector2(qbezier.Point2.X + dx, qbezier.Point2.Y + dy);
vertices[2] = new Vector2(qbezier.Point3.X + dx, qbezier.Point3.Y + dy);
mc.ConvexHull(vertices, out convexHull, out k);
return Contains(point.X, point.Y, convexHull, k);
}
/// <summary>
///
/// </summary>
/// <param name="dc"></param>
/// <param name="qbezier"></param>
/// <param name="dx"></param>
/// <param name="dy"></param>
/// <param name="db"></param>
/// <param name="r"></param>
public void Draw(object dc, XQBezier qbezier, double dx, double dy, ImmutableArray<ShapeProperty> db, Record r)
{
var _dc = dc as DrawingContext;
var style = qbezier.Style;
if (style == null)
return;
double thickness = style.Thickness / _state.Zoom;
double half = thickness / 2.0;
Tuple<Brush, Pen> cache = null;
Brush fill;
Pen stroke;
if (_enableStyleCache
&& _styleCache.TryGetValue(style, out cache))
{
fill = cache.Item1;
stroke = cache.Item2;
}
else
{
fill = CreateBrush(style.Fill);
stroke = CreatePen(style, thickness);
if (_enableStyleCache)
_styleCache.Add(style, Tuple.Create(fill, stroke));
}
PathGeometry pg = null;
if (_enableQBezierCache
&& _qbezierCache.TryGetValue(qbezier, out pg))
{
var pf = pg.Figures[0];
pf.StartPoint = new Point(qbezier.Point1.X + dx, qbezier.Point1.Y + dy);
pf.IsFilled = qbezier.IsFilled;
var qbs = pf.Segments[0] as QuadraticBezierSegment;
qbs.Point1 = new Point(qbezier.Point2.X + dx, qbezier.Point2.Y + dy);
qbs.Point2 = new Point(qbezier.Point3.X + dx, qbezier.Point3.Y + dy);
qbs.IsStroked = qbezier.IsStroked;
}
else
{
var pf = new PathFigure()
{
StartPoint = new Point(qbezier.Point1.X + dx, qbezier.Point1.Y + dy),
IsFilled = qbezier.IsFilled
};
var qbs = new QuadraticBezierSegment(
new Point(qbezier.Point2.X + dx, qbezier.Point2.Y + dy),
new Point(qbezier.Point3.X + dx, qbezier.Point3.Y + dy),
qbezier.IsStroked);
//bs.Freeze();
pf.Segments.Add(qbs);
//pf.Freeze();
pg = new PathGeometry();
pg.Figures.Add(pf);
//pg.Freeze();
if (_enableQBezierCache)
_qbezierCache.Add(qbezier, pg);
}
DrawPathGeometryInternal(_dc, half, fill, stroke, qbezier.IsStroked, qbezier.IsFilled, pg);
}
/// <summary>
///
/// </summary>
/// <param name="x"></param>
/// <param name="y"></param>
public override void LeftDown(double x, double y)
{
double sx = _editor.Project.Options.SnapToGrid ? Editor.Snap(x, _editor.Project.Options.SnapX) : x;
double sy = _editor.Project.Options.SnapToGrid ? Editor.Snap(y, _editor.Project.Options.SnapY) : y;
switch (_currentState)
{
case State.None:
{
_shape = XQBezier.Create(
sx, sy,
_editor.Project.CurrentStyleLibrary.CurrentStyle,
_editor.Project.Options.PointShape,
_editor.Project.Options.DefaultIsStroked,
_editor.Project.Options.DefaultIsFilled);
if (_editor.Project.Options.TryToConnect)
{
TryToConnectPoint1(_shape as XQBezier, sx, sy);
}
_editor.Project.CurrentContainer.WorkingLayer.Shapes = _editor.Project.CurrentContainer.WorkingLayer.Shapes.Add(_shape);
_editor.Project.CurrentContainer.WorkingLayer.Invalidate();
ToStateOne();
Move(_shape as XQBezier);
_editor.Project.CurrentContainer.HelperLayer.Invalidate();
_currentState = State.One;
_editor.CancelAvailable = true;
}
break;
case State.One:
{
var qbezier = _shape as XQBezier;
if (qbezier != null)
{
qbezier.Point2.X = sx;
qbezier.Point2.Y = sy;
qbezier.Point3.X = sx;
qbezier.Point3.Y = sy;
if (_editor.Project.Options.TryToConnect)
{
TryToConnectPoint3(_shape as XQBezier, sx, sy);
}
_editor.Project.CurrentContainer.WorkingLayer.Invalidate();
ToStateTwo();
Move(_shape as XQBezier);
_editor.Project.CurrentContainer.HelperLayer.Invalidate();
_currentState = State.Two;
}
}
break;
case State.Two:
{
var qbezier = _shape as XQBezier;
if (qbezier != null)
{
qbezier.Point2.X = sx;
qbezier.Point2.Y = sy;
if (_editor.Project.Options.TryToConnect)
{
TryToConnectPoint2(_shape as XQBezier, sx, sy);
}
_editor.Project.CurrentContainer.WorkingLayer.Shapes = _editor.Project.CurrentContainer.WorkingLayer.Shapes.Remove(_shape);
Remove();
Finalize(_shape as XQBezier);
_editor.AddWithHistory(_shape);
_currentState = State.None;
_editor.CancelAvailable = false;
}
}
break;
}
}
/// <summary>
///
/// </summary>
/// <param name="qbezier"></param>
/// <param name="x"></param>
/// <param name="y"></param>
public void TryToConnectPoint3(XQBezier qbezier, double x, double y)
{
var result = ShapeBounds.HitTest(_editor.Project.CurrentContainer, new Vector2(x, y), _editor.Project.Options.HitTreshold);
if (result != null && result is XPoint)
{
qbezier.Point3 = result as XPoint;
}
}
/// <summary>
///
/// </summary>
/// <param name="qbezier"></param>
/// <param name="dx"></param>
/// <param name="dy"></param>
/// <returns></returns>
public static Vector2[] GetVertices(XQBezier qbezier, double dx, double dy)
{
Vector2[] vertices = new Vector2[3];
int k;
Vector2[] convexHull;
vertices[0] = new Vector2(qbezier.Point1.X + dx, qbezier.Point1.Y + dy);
vertices[1] = new Vector2(qbezier.Point2.X + dx, qbezier.Point2.Y + dy);
vertices[2] = new Vector2(qbezier.Point3.X + dx, qbezier.Point3.Y + dy);
mc.ConvexHull(vertices, out convexHull, out k);
return convexHull.Take(k).ToArray();
}
/// <summary>
///
/// </summary>
/// <param name="gfx"></param>
/// <param name="qbezier"></param>
/// <param name="dx"></param>
/// <param name="dy"></param>
/// <param name="db"></param>
/// <param name="r"></param>
public void Draw(object gfx, XQBezier qbezier, double dx, double dy, ImmutableArray<ShapeProperty> db, Record r)
{
var _gfx = gfx as Graphics;
Brush brush = ToSolidBrush(qbezier.Style.Fill);
Pen pen = ToPen(qbezier.Style, _scaleToPage);
double x1 = qbezier.Point1.X;
double y1 = qbezier.Point1.Y;
double x2 = qbezier.Point1.X + (2.0 * (qbezier.Point2.X - qbezier.Point1.X)) / 3.0;
double y2 = qbezier.Point1.Y + (2.0 * (qbezier.Point2.Y - qbezier.Point1.Y)) / 3.0;
double x3 = x2 + (qbezier.Point3.X - qbezier.Point1.X) / 3.0;
double y3 = y2 + (qbezier.Point3.Y - qbezier.Point1.Y) / 3.0;
double x4 = qbezier.Point3.X;
double y4 = qbezier.Point3.Y;
if (qbezier.IsFilled)
{
var path = new GraphicsPath();
path.AddBezier(
_scaleToPage(x1 + dx),
_scaleToPage(y1 + dy),
_scaleToPage(x2 + dx),
_scaleToPage(y2 + dy),
_scaleToPage(x3 + dx),
_scaleToPage(y3 + dy),
_scaleToPage(x4 + dx),
_scaleToPage(y4 + dy));
_gfx.FillPath(brush, path);
}
if (qbezier.IsStroked)
{
_gfx.DrawBezier(
pen,
_scaleToPage(x1 + dx),
_scaleToPage(y1 + dy),
_scaleToPage(x2 + dx),
_scaleToPage(y2 + dy),
_scaleToPage(x3 + dx),
_scaleToPage(y3 + dy),
_scaleToPage(x4 + dx),
_scaleToPage(y4 + dy));
}
brush.Dispose();
pen.Dispose();
}
