/// <summary>
/// Get <see cref="LineShape"/> 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="LineShape.Start"/> point.</param>
/// <param name="y1">The calculated Y coordinate for <see cref="LineShape.Start"/> point.</param>
/// <param name="x2">The calculated X coordinate for <see cref="LineShape.End"/> point.</param>
/// <param name="y2">The calculated Y coordinate for <see cref="LineShape.End"/> point.</param>
public static void GetMaxLengthAll(this LineShape 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>
/// Get <see cref="LineShape"/> maximum length using <see cref="LineFixedLengthFlags"/>.
/// </summary>
/// <param name="line">The line shape.</param>
/// <param name="x1">The calculated X coordinate for <see cref="LineShape.Start"/> point.</param>
/// <param name="y1">The calculated Y coordinate for <see cref="LineShape.Start"/> point.</param>
/// <param name="x2">The calculated X coordinate for <see cref="LineShape.End"/> point.</param>
/// <param name="y2">The calculated Y coordinate for <see cref="LineShape.End"/> point.</param>
public static void GetMaxLength(this LineShape 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);
}
}
}
}
public static Line2 ToLine2(this LineShape line, double dx = 0.0, double dy = 0.0)
{
return(Line2.FromPoints(
line.StartPoint.X, line.StartPoint.Y,
line.Point.X, line.Point.Y,
dx, dy));
}
/// <summary>
/// Get <see cref="LineShape"/> 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="LineShape.Start"/> point.</param>
/// <param name="y2">The calculated Y coordinate for <see cref="LineShape.End"/> point.</param>
public static void GetMaxLengthVertical(this LineShape 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;
}
}
}
/// <summary>
/// Get <see cref="LineShape"/> 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="LineShape.Start"/> point.</param>
/// <param name="x2">The calculated X coordinate for <see cref="LineShape.End"/> point.</param>
public static void GetMaxLengthHorizontal(this LineShape 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;
}
}
}
