/// <summary>
/// Remove selection.
/// </summary>
public void Remove()
{
if (_line12 != null)
{
_layer.Shapes = _layer.Shapes.Remove(_line12);
_line12 = null;
}
if (_line32 != null)
{
_layer.Shapes = _layer.Shapes.Remove(_line32);
_line32 = null;
}
if (_helperPoint1 != null)
{
_layer.Shapes = _layer.Shapes.Remove(_helperPoint1);
_helperPoint1 = null;
}
if (_helperPoint2 != null)
{
_layer.Shapes = _layer.Shapes.Remove(_helperPoint2);
_helperPoint2 = null;
}
if (_helperPoint3 != null)
{
_layer.Shapes = _layer.Shapes.Remove(_helperPoint3);
_helperPoint3 = null;
}
_layer.Invalidate();
}
/// <summary>
/// Get <see cref="ILineShape"/> maximum length using <see cref="LineFixedLengthFlags"/>.
/// </summary>
/// <param name="line">The line shape.</param>
/// <param name="x1">The calculated X coordinate for <see cref="ILineShape.Start"/> point.</param>
/// <param name="y1">The calculated Y coordinate for <see cref="ILineShape.Start"/> point.</param>
/// <param name="x2">The calculated X coordinate for <see cref="ILineShape.End"/> point.</param>
/// <param name="y2">The calculated Y coordinate for <see cref="ILineShape.End"/> point.</param>
public static void GetMaxLength(this ILineShape line, ref double x1, ref double y1, ref double x2, ref double y2)
{
var ls = line.Style.LineStyle;
if (ls.FixedLength.Flags == LineFixedLengthFlags.Disabled)
{
return;
}
if (ls.FixedLength.Flags.HasFlag(LineFixedLengthFlags.All))
{
GetMaxLengthAll(line, ref x1, ref y1, ref x2, ref y2);
}
else
{
if (ls.FixedLength.Flags.HasFlag(LineFixedLengthFlags.Vertical))
{
bool isVertical = Round(x1, 1) == Round(x2, 1);
if (isVertical)
{
GetMaxLengthVertical(line, ref y1, ref y2);
}
}
if (ls.FixedLength.Flags.HasFlag(LineFixedLengthFlags.Horizontal))
{
bool isHorizontal = Round(y1, 1) == Round(y2, 1);
if (isHorizontal)
{
GetMaxLengthHorizontal(line, ref x1, ref x2);
}
}
}
}
/// <summary>
/// Initialize new instance of <see cref="ToolLineSelection"/> class.
/// </summary>
/// <param name="serviceProvider">The service provider.</param>
/// <param name="layer">The selection shapes layer.</param>
/// <param name="shape">The selected shape.</param>
/// <param name="style">The selection shapes style.</param>
public ToolLineSelection(IServiceProvider serviceProvider, ILayerContainer layer, ILineShape shape, IShapeStyle style)
{
_serviceProvider = serviceProvider;
_layer = layer;
_line = shape;
_style = style;
}
/// <summary>
/// Get <see cref="ILineShape"/> maximum length for <see cref="LineFixedLengthFlags.All"/> mode.
/// </summary>
/// <param name="line">The line shape.</param>
/// <param name="x1">The calculated X coordinate for <see cref="ILineShape.Start"/> point.</param>
/// <param name="y1">The calculated Y coordinate for <see cref="ILineShape.Start"/> point.</param>
/// <param name="x2">The calculated X coordinate for <see cref="ILineShape.End"/> point.</param>
/// <param name="y2">The calculated Y coordinate for <see cref="ILineShape.End"/> point.</param>
public static void GetMaxLengthAll(this ILineShape line, ref double x1, ref double y1, ref double x2, ref double y2)
{
var ls = line.Style.LineStyle;
bool shortenStart = ls.FixedLength.StartTrigger.Flags != ShapeStateFlags.Default &&
line.Start.State.Flags.HasFlag(ls.FixedLength.StartTrigger.Flags) &&
ls.FixedLength.Flags.HasFlag(LineFixedLengthFlags.Start);
bool shortenEnd = ls.FixedLength.EndTrigger.Flags != ShapeStateFlags.Default &&
line.End.State.Flags.HasFlag(ls.FixedLength.EndTrigger.Flags) &&
ls.FixedLength.Flags.HasFlag(LineFixedLengthFlags.End);
if (shortenStart && !shortenEnd)
{
double dx = x1 - x2;
double dy = y1 - y2;
double distance = Sqrt(dx * dx + dy * dy);
x1 = x2 - (x2 - x1) / distance * ls.FixedLength.Length;
y1 = y2 - (y2 - y1) / distance * ls.FixedLength.Length;
}
if (!shortenStart && shortenEnd)
{
double dx = x2 - x1;
double dy = y2 - y1;
double distance = Sqrt(dx * dx + dy * dy);
x2 = x1 - (x1 - x2) / distance * ls.FixedLength.Length;
y2 = y1 - (y1 - y2) / distance * ls.FixedLength.Length;
}
}
/// <summary>
/// Transfer selection state to Point2.
/// </summary>
public void ToStatePoint2()
{
_line12 = _serviceProvider.GetService <IFactory>().CreateLineShape(0, 0, _style, null);
_helperPoint2 = _serviceProvider.GetService <IFactory>().CreatePointShape(0, 0, _point);
_layer.Shapes = _layer.Shapes.Add(_line12);
_layer.Shapes = _layer.Shapes.Add(_helperPoint2);
}
/// <summary>
/// Transfer selection state to Point3.
/// </summary>
public void ToStatePoint3()
{
_line43 = _serviceProvider.GetService <IFactory>().CreateLineShape(0, 0, _style);
_line23 = _serviceProvider.GetService <IFactory>().CreateLineShape(0, 0, _style);
_helperPoint3 = _serviceProvider.GetService <IFactory>().CreatePointShape(0, 0);
_layer.Shapes = _layer.Shapes.Add(_line43);
_layer.Shapes = _layer.Shapes.Add(_line23);
_layer.Shapes = _layer.Shapes.Add(_helperPoint3);
}
/// <summary>
/// Transfer selection state to Point2.
/// </summary>
public void ToStatePoint2()
{
_line12 = _serviceProvider.GetService <IFactory>().CreateLineShape(0, 0, _style);
_line12.State.Flags |= ShapeStateFlags.Thickness;
_helperPoint2 = _serviceProvider.GetService <IFactory>().CreatePointShape(0, 0);
_layer.Shapes = _layer.Shapes.Add(_line12);
_layer.Shapes = _layer.Shapes.Add(_helperPoint2);
}
/// <summary>
/// Reset selection.
/// </summary>
public void Reset()
{
if (_ellipse != null)
{
_layer.Shapes = _layer.Shapes.Remove(_ellipse);
_ellipse = null;
}
if (_startLine != null)
{
_layer.Shapes = _layer.Shapes.Remove(_startLine);
_startLine = null;
}
if (_endLine != null)
{
_layer.Shapes = _layer.Shapes.Remove(_endLine);
_endLine = null;
}
if (_p1HelperPoint != null)
{
_layer.Shapes = _layer.Shapes.Remove(_p1HelperPoint);
_p1HelperPoint = null;
}
if (_p2HelperPoint != null)
{
_layer.Shapes = _layer.Shapes.Remove(_p2HelperPoint);
_p2HelperPoint = null;
}
if (_centerHelperPoint != null)
{
_layer.Shapes = _layer.Shapes.Remove(_centerHelperPoint);
_centerHelperPoint = null;
}
if (_startHelperPoint != null)
{
_layer.Shapes = _layer.Shapes.Remove(_startHelperPoint);
_startHelperPoint = null;
}
if (_endHelperPoint != null)
{
_layer.Shapes = _layer.Shapes.Remove(_endHelperPoint);
_endHelperPoint = null;
}
_layer.Invalidate();
}
/// <summary>
/// Transfer selection state to Point4.
/// </summary>
public void ToStatePoint4()
{
if (_ellipse != null)
{
_layer.Shapes = _layer.Shapes.Remove(_ellipse);
_ellipse = null;
}
_endLine = _serviceProvider.GetService <IFactory>().CreateLineShape(0, 0, _style);
_endHelperPoint = _serviceProvider.GetService <IFactory>().CreatePointShape(0, 0);
_layer.Shapes = _layer.Shapes.Add(_endLine);
_layer.Shapes = _layer.Shapes.Add(_endHelperPoint);
}
public static SKPath ToSKPath(this IBaseShape shape, double dx, double dy, Func <double, float> scale)
{
return(shape switch
{
ILineShape lineShape => ToSKPath(lineShape, dx, dy, scale),
IRectangleShape rectangleShape => ToSKPath(rectangleShape, dx, dy, scale),
IEllipseShape ellipseShape => ToSKPath(ellipseShape, dx, dy, scale),
IImageShape imageShape => ToSKPath(imageShape, dx, dy, scale),
IArcShape arcShape => ToSKPath(arcShape, dx, dy, scale),
ICubicBezierShape cubicBezierShape => ToSKPath(cubicBezierShape, dx, dy, scale),
IQuadraticBezierShape quadraticBezierShape => ToSKPath(quadraticBezierShape, dx, dy, scale),
ITextShape textShape => ToSKPath(textShape, dx, dy, scale),
IPathShape pathShape => ToSKPath(pathShape, dx, dy, scale),
IGroupShape groupShape => ToSKPath(groupShape.Shapes, dx, dy, scale),
_ => null,
});
/// <summary>
/// Reset selection.
/// </summary>
public void Reset()
{
if (_line12 != null)
{
_layer.Shapes = _layer.Shapes.Remove(_line12);
_line12 = null;
}
if (_line43 != null)
{
_layer.Shapes = _layer.Shapes.Remove(_line43);
_line43 = null;
}
if (_line23 != null)
{
_layer.Shapes = _layer.Shapes.Remove(_line23);
_line23 = null;
}
if (_helperPoint1 != null)
{
_layer.Shapes = _layer.Shapes.Remove(_helperPoint1);
_helperPoint1 = null;
}
if (_helperPoint2 != null)
{
_layer.Shapes = _layer.Shapes.Remove(_helperPoint2);
_helperPoint2 = null;
}
if (_helperPoint3 != null)
{
_layer.Shapes = _layer.Shapes.Remove(_helperPoint3);
_helperPoint3 = null;
}
if (_helperPoint4 != null)
{
_layer.Shapes = _layer.Shapes.Remove(_helperPoint4);
_helperPoint4 = null;
}
_layer.InvalidateLayer();
}
/// <summary>
/// Transfer selection state to Point3.
/// </summary>
public void ToStatePoint3()
{
if (_p1HelperPoint != null)
{
_layer.Shapes = _layer.Shapes.Remove(_p1HelperPoint);
_p1HelperPoint = null;
}
if (_p2HelperPoint != null)
{
_layer.Shapes = _layer.Shapes.Remove(_p2HelperPoint);
_p2HelperPoint = null;
}
_startLine = _serviceProvider.GetService <IFactory>().CreateLineShape(0, 0, _style);
_startHelperPoint = _serviceProvider.GetService <IFactory>().CreatePointShape(0, 0);
_layer.Shapes = _layer.Shapes.Add(_startLine);
_layer.Shapes = _layer.Shapes.Add(_startHelperPoint);
}
/// <summary>
/// Get <see cref="ILineShape"/> maximum length for <see cref="LineFixedLengthFlags.Horizontal"/> mode.
/// </summary>
/// <param name="line">The line shape.</param>
/// <param name="x1">The calculated X coordinate for <see cref="ILineShape.Start"/> point.</param>
/// <param name="x2">The calculated X coordinate for <see cref="ILineShape.End"/> point.</param>
public static void GetMaxLengthHorizontal(this ILineShape line, ref double x1, ref double x2)
{
var ls = line.Style.LineStyle;
bool shortenStart = ls.FixedLength.StartTrigger.Flags != ShapeStateFlags.Default &&
line.Start.State.Flags.HasFlag(ls.FixedLength.StartTrigger.Flags) &&
ls.FixedLength.Flags.HasFlag(LineFixedLengthFlags.Start);
bool shortenEnd = ls.FixedLength.EndTrigger.Flags != ShapeStateFlags.Default &&
line.End.State.Flags.HasFlag(ls.FixedLength.EndTrigger.Flags) &&
ls.FixedLength.Flags.HasFlag(LineFixedLengthFlags.End);
if (shortenStart && !shortenEnd)
{
if (x2 > x1)
{
x1 = x2 - ls.FixedLength.Length;
}
else
{
x1 = x2 + ls.FixedLength.Length;
}
}
if (!shortenStart && shortenEnd)
{
if (x2 > x1)
{
x2 = x1 + ls.FixedLength.Length;
}
else
{
x2 = x1 - ls.FixedLength.Length;
}
}
}
/// <summary>
/// Get <see cref="ILineShape"/> maximum length for <see cref="LineFixedLengthFlags.Vertical"/> mode.
/// </summary>
/// <param name="line">The line shape.</param>
/// <param name="y1">The calculated Y coordinate for <see cref="ILineShape.Start"/> point.</param>
/// <param name="y2">The calculated Y coordinate for <see cref="ILineShape.End"/> point.</param>
public static void GetMaxLengthVertical(this ILineShape line, ref double y1, ref double y2)
{
var ls = line.Style.LineStyle;
bool shortenStart = ls.FixedLength.StartTrigger.Flags != ShapeStateFlags.Default &&
line.Start.State.Flags.HasFlag(ls.FixedLength.StartTrigger.Flags) &&
ls.FixedLength.Flags.HasFlag(LineFixedLengthFlags.Start);
bool shortenEnd = ls.FixedLength.EndTrigger.Flags != ShapeStateFlags.Default &&
line.End.State.Flags.HasFlag(ls.FixedLength.EndTrigger.Flags) &&
ls.FixedLength.Flags.HasFlag(LineFixedLengthFlags.End);
if (shortenStart && !shortenEnd)
{
if (y2 > y1)
{
y1 = y2 - ls.FixedLength.Length;
}
else
{
y1 = y2 + ls.FixedLength.Length;
}
}
if (!shortenStart && shortenEnd)
{
if (y2 > y1)
{
y2 = y1 + ls.FixedLength.Length;
}
else
{
y2 = y1 - ls.FixedLength.Length;
}
}
}
public void CopyStateTo(ILineShape element)
{
element.Descriptor = Descriptor;
}
public void CopyStateTo(ILineShape element)
{
element.Descriptor = Descriptor;
}
/// <inheritdoc/>
public void Bind(ILineShape line, object db, object r)
{
}
public LineDrawNode(ILineShape line, IShapeStyle style)
{
Style = style;
Line = line;
UpdateGeometry();
}
public ILineDrawNode CreateLineDrawNode(ILineShape line, IShapeStyle style)
{
return(new LineDrawNode(line, style));
}
