public LLMarker(DrawStyle style, PointT point, Coord radius, MarkerPolygon type)
: base(style)
{
Point = point;
Radius = radius;
Type = type;
}
private void DrawLayers()
{
if (IsDesignTime)
{
_designStyle = _designStyle ?? new DrawStyle();
_designStyle.Font = Font;
_designStyle.TextColor = ForeColor;
if (_layers.Count != 0 && _layers.All(l => !l.Shapes.Any()))
{
_layers[0].Shapes = new LLShape[] { new LLTextShape(_designStyle, GetType().Name, null, new Point <float>(3, 3)) }
}
;
}
try {
Bitmap combined = null;
for (int i = 0; i < _layers.Count; i++)
{
LLShapeLayer layer = _layers[i];
var bmp = layer.AutoDraw(combined, Width, Height);
if (layer.UseAlpha && bmp != combined)
{
// Blit this layer onto the previous one
if (combined == null)
{
// oops, bottom layer has an alpha channel
combined = new Bitmap(bmp.Width, bmp.Height, PixelFormat.Format24bppRgb);
var g_ = Graphics.FromImage(combined);
g_.Clear(BackColor);
g_.Dispose();
}
var g = Graphics.FromImage(combined);
g.DrawImage(bmp, new Point());
g.Dispose();
}
else
{
combined = bmp;
}
}
_completeFrame = combined;
base.Invalidate();
} finally {
_needRedraw = _drawPending = false;
}
}
/// <summary>Draws a polygon with holes.</summary>
/// <param name="points">All points of all parts of the shape. Holes must
/// wind in the opposite direction as the shape in which they are embedded.</param>
/// <param name="divisions">Indexes of divisions between sub-polygons. Must be sorted.</param>
protected static void DrawPolygon(Graphics g, DrawStyle style, IList <PointT> points, IList <int> divisions, byte opacity)
{
if (style.FillColor.A + style.LineColor.A == 0)
{
return;
}
Pen pen = style.Pen(opacity);
Brush brush = style.Brush(opacity);
if (divisions != null && divisions.Count != 0)
{
using (var gp = new GraphicsPath()) {
AddPolygon(points, divisions, gp);
if (style.OutlineBehindFill && style.LineColor.A > 0)
{
g.DrawPath(pen, gp);
}
if (style.FillColor.A > 0)
{
g.FillPath(brush, gp);
}
if (!style.OutlineBehindFill && style.LineColor.A > 0)
{
g.DrawPath(pen, gp);
}
}
}
else
{
var array = points.SelectArray(p => p.AsBCL());
if (style.OutlineBehindFill && style.LineColor.A > 0)
{
g.DrawPolygon(pen, array);
}
if (style.FillColor.A > 0)
{
g.FillPolygon(brush, array);
}
if (!style.OutlineBehindFill && style.LineColor.A > 0)
{
g.DrawPolygon(pen, array);
}
}
}
public LLTextShape(DrawStyle style, string text, StringFormat justify, PointT location, VectorT?maxSize = null)
: base(style)
{
Text = text; Justify = justify ?? Justify; Location = location; MaxSize = maxSize;
}
public LLTextShape(DrawStyle style) : base(style)
{
}
public LLShape(DrawStyle style)
{
ZOrder = NextZOrder++;
Style = style ?? DefaultStyle;
Opacity = 255;
}
LLQuadraticCurve(DrawStyle style, IList <PointT> points) : base(style)
{
_points = points ?? EmptyList <PointT> .Value;
}
public LLPolygon(DrawStyle style, IList <PointT> points, IList <int> divisions = null) : base(style, points)
{
_divisions = divisions ?? EmptyList <int> .Value;
}
public LLEllipse(DrawStyle style, BoundingBoxT rect) : base(style, rect)
{
}
public LLRectangle(DrawStyle style, BoundingBoxT rect) : base(style)
{
Rect = rect;
}
public LLPolyline(DrawStyle style, IList <PointT> points) : base(style)
{
_points = points;
}
public LLMarkerRotated(DrawStyle style, PointT point, Coord radius, MarkerPolygon type, Coord angleDeg) : base(style, point, radius, type)
{
AngleDeg = angleDeg;
}
public LLShapeGroup(DrawStyle basis = null) : base(basis)
{
}