public override IEnumerable <Object> RenderPaths(IEnumerable <Path2D> paths, StylePen line,
StylePen highlightLine, StylePen selectLine,
StylePen outline, StylePen highlightOutline,
StylePen selectOutline, RenderState renderState)
{
throw new Exception("The method or operation is not implemented.");
}
public override IEnumerable <DependencyObject> RenderPaths(IEnumerable <Path2D> paths, StyleBrush fill,
StyleBrush highlightFill, StyleBrush selectFill,
StylePen outline, StylePen highlightOutline,
StylePen selectOutline, RenderState renderState)
{
throw new NotImplementedException();
}
public override IEnumerable <RenderObject> RenderPaths(IEnumerable <Path2D> paths,
StylePen outline, StylePen highlightOutline,
StylePen selectOutline, RenderState renderState)
{
foreach (Path2D path in paths)
{
RenderObject ro = new RenderObject();
ro.RenderedPaths = new Double[path.Figures.Count][];
for (Int32 figureIndex = 0; figureIndex < path.Figures.Count; figureIndex++)
{
ro.RenderedPaths[figureIndex] = new Double[path.Figures[figureIndex].Points.Count * 2];
for (Int32 pointIndex = 0; pointIndex < path.Figures[figureIndex].Points.Count; pointIndex++)
{
Point2D point = path.Figures[figureIndex].Points[pointIndex];
ro.RenderedPaths[figureIndex][pointIndex * 2] = point.X;
ro.RenderedPaths[figureIndex][pointIndex * 2 + 1] = point.Y;
}
}
yield return(ro);
}
}
public override IEnumerable <String> RenderPaths(IEnumerable <Path2D> path, StyleBrush fill,
StyleBrush highlightFill,
StyleBrush selectFill, StylePen outline,
StylePen highlightOutline,
StylePen selectOutline, RenderState renderState)
{
if (path == null)
{
throw new ArgumentNullException("path");
}
yield return(path.ToString() +
fill == null
? String.Empty
: fill.ToString() +
selectFill == null
? String.Empty
: selectFill.ToString() +
highlightFill == null
? String.Empty
: highlightFill.ToString() +
outline == null
? String.Empty
: outline.ToString() +
highlightOutline == null
? String.Empty
: highlightOutline.ToString() +
selectOutline == null
? String.Empty
: selectOutline.ToString());
}
/// <summary>
/// Creates a new GdiRenderObject instance.
/// </summary>
/// <param name="text">The text to draw.</param>
/// <param name="font">The font to use to render the text.</param>
/// <param name="bounds">The location and size to draw the text.</param>
/// <param name="fill">
/// The brush used to fill the path when the state is <see cref="RenderState.Normal"/>.
/// </param>
/// <param name="highlightFill">
/// The brush used to fill the path when the state is <see cref="RenderState.Highlighted"/>.
/// </param>
/// <param name="selectFill">
/// The brush used to fill the path when the state is <see cref="RenderState.Selected"/>.
/// </param>
/// <param name="outline">
/// The pen used to outline the path when the state is <see cref="RenderState.Normal"/>.
/// </param>
/// <param name="highlightOutline">
/// The pen used to outline the path when the state is <see cref="RenderState.Highlighted"/>.
/// </param>
/// <param name="selectOutline">
/// The pen used to outline the path when the state is <see cref="RenderState.Selected"/>.
/// </param>
public CairoRenderObject(String text, FontFace font, Rectangle bounds,
StyleBrush fill, StyleBrush highlightFill, StyleBrush selectFill,
StylePen outline, StylePen highlightOutline, StylePen selectOutline)
{
_state = RenderState.Normal;
Path = null;
Image = null;
Bounds = new Rectangle();
AffineTransform = null;
ColorTransform = null;
Text = text;
Font = font;
Bounds = bounds;
Fill = fill;
HighlightFill = highlightFill;
SelectFill = selectFill;
Outline = outline;
HighlightOutline = highlightOutline;
SelectOutline = selectOutline;
Line = null;
HighlightLine = null;
SelectLine = null;
}
public override IEnumerable <RenderObject> RenderPaths(IEnumerable <Path2D> paths, StylePen line,
StylePen highlightLine, StylePen selectLine,
StylePen outline, StylePen highlightOutline,
StylePen selectOutline, RenderState renderState)
{
return(renderPath(paths));
}
private StylePen interpolatePen(StylePen min, StylePen max, Double attr)
{
Double frac = fraction(attr);
StyleColor color = StyleColor.Interpolate(min.BackgroundBrush.Color, max.BackgroundBrush.Color, frac);
StylePen pen = new StylePen(color, interpolateDouble(min.Width, max.Width, attr));
pen.MiterLimit = interpolateFloat(min.MiterLimit, max.MiterLimit, attr);
pen.StartCap = (frac > 0.5 ? max.StartCap : min.StartCap);
pen.EndCap = (frac > 0.5 ? max.EndCap : min.EndCap);
pen.LineJoin = (frac > 0.5 ? max.LineJoin : min.LineJoin);
pen.DashStyle = (frac > 0.5 ? max.DashStyle : min.DashStyle);
if (min.DashStyle == LineDashStyle.Custom && max.DashStyle == LineDashStyle.Custom)
{
pen.DashPattern = (frac > 0.5 ? max.DashPattern : min.DashPattern);
}
pen.DashOffset = (frac > 0.5 ? max.DashOffset : min.DashOffset);
pen.DashCap = (frac > 0.5 ? max.DashCap : min.DashCap);
if (min.CompoundArray.Length > 0 && max.CompoundArray.Length > 0)
{
pen.CompoundArray = (frac > 0.5 ? max.CompoundArray : min.CompoundArray);
}
pen.Alignment = (frac > 0.5 ? max.Alignment : min.Alignment);
//pen.CustomStartCap = (frac > 0.5 ? max.CustomStartCap : min.CustomStartCap); //Throws ArgumentException
//pen.CustomEndCap = (frac > 0.5 ? max.CustomEndCap : min.CustomEndCap); //Throws ArgumentException
return(pen);
}
static ViewSelection()
{
DefaultOutline = new StylePen(StyleColor.Black, 1.0f);
DefaultOutline.DashStyle = LineDashStyle.Dash;
DefaultOutline.DashBrushes = new StyleBrush[] { new SolidStyleBrush(StyleColor.White) };
DefaultOutline.DashPattern = new Single[] { 4, 4 };
}
IEnumerable IVectorRenderer2D.RenderPaths(IEnumerable <Path2D> paths, StylePen line,
StylePen highlightLine, StylePen selectLine, StylePen outline,
StylePen highlightOutline, StylePen selectOutline,
RenderState renderState)
{
return(RenderPaths(paths, line, highlightLine, selectLine,
outline, highlightOutline, selectOutline, renderState));
}
public override IEnumerable <Object> RenderPaths(IEnumerable <Path2D> paths, StyleBrush fill,
StyleBrush highlightFill, StyleBrush selectFill,
StylePen outline,
StylePen highlightOutline, StylePen selectOutline,
RenderState renderState)
{
yield break;
}
IEnumerable IVectorRenderer2D.RenderPaths(IEnumerable <Path2D> paths, StyleBrush fill,
StyleBrush highlightFill, StyleBrush selectFill, StylePen outline,
StylePen highlightOutline, StylePen selectOutline,
RenderState renderState)
{
return(RenderPaths(paths, fill, highlightFill, selectFill,
outline, highlightOutline, selectOutline, renderState));
}
public override IEnumerable <GeoJsonRenderObject> RenderPaths(IEnumerable <Path2D> paths, StylePen outline,
StylePen highlightOutline, StylePen selectOutline,
RenderState renderState)
{
yield break;
//TODO:
}
public override IEnumerable <GdiRenderObject> RenderPaths(
IEnumerable <Path2D> paths, StylePen outline, StylePen highlightOutline, StylePen selectOutline,
RenderState renderState)
{
SolidStyleBrush transparentBrush = new SolidStyleBrush(StyleColor.Transparent);
return(RenderPaths(paths, transparentBrush, transparentBrush,
transparentBrush, outline, highlightOutline, selectOutline, renderState));
}
private static void StrokePath(Context context, StylePen outline)
{
context.SetDash(ConvertDash(outline.DashPattern), outline.DashOffset);
context.LineCap = ConvertCap(outline.EndCap);
context.LineJoin = ConvertJoin(outline.LineJoin);
context.LineWidth = outline.Width;
context.Antialias = Antialias.Subpixel;
context.MiterLimit = outline.MiterLimit;
SetColour(context, outline.BackgroundBrush);
context.StrokePreserve();
}
public void RenderPathOutlineTest()
{
GdiVectorRenderer renderer = new GdiVectorRenderer();
Point2D[] points = new Point2D[]
{ new Point2D(1, 0), new Point2D(0, 1), new Point2D(-1, 0), new Point2D(0, -1) };
Path2D path = new Path2D(points, true);
StylePen outline = new StylePen(new SolidStyleBrush(StyleColor.Blue), 1);
StylePen highlight = new StylePen(new SolidStyleBrush(StyleColor.Red), 1);
StylePen selected = new StylePen(new SolidStyleBrush(StyleColor.Green), 1);
IEnumerable <GdiRenderObject> renderObjects = renderer.RenderPaths(
new Path2D[] { path }, outline, highlight, selected, RenderState.Normal);
IEnumerator <GdiRenderObject> enumertor = renderObjects.GetEnumerator();
enumertor.MoveNext();
GdiRenderObject ro = enumertor.Current;
Assert.AreEqual(RenderState.Normal, ro.State);
Assert.IsInstanceOfType(typeof(SolidBrush), ro.Fill);
Assert.IsNotNull(ro.GdiPath);
Assert.AreEqual(4, ro.GdiPath.PointCount);
Assert.AreEqual(new RectangleF(-1, -1, 2, 2), ro.GdiPath.GetBounds());
PathData data = ro.GdiPath.PathData;
for (Int32 i = 0; i < 4; i++)
{
Assert.AreEqual(points[i].X, data.Points[i].X, _e);
Assert.AreEqual(points[i].Y, data.Points[i].Y, _e);
}
Assert.AreEqual(0, data.Types[0]);
Assert.AreEqual(1, data.Types[1]);
Assert.AreEqual(1, data.Types[2]);
Assert.AreEqual(129, data.Types[3]);
Pen expectedOutline = new Pen(Brushes.Blue, 1.0f);
Pen expectedHighlight = new Pen(Brushes.Red, 1.0f);
Pen expectedSelected = new Pen(Brushes.Green, 1.0f);
Assert.IsTrue(pensAreEqual(expectedOutline, ro.Outline));
Assert.IsTrue(pensAreEqual(expectedHighlight, ro.HighlightOutline));
Assert.IsTrue(pensAreEqual(expectedSelected, ro.SelectOutline));
expectedOutline.Dispose();
expectedHighlight.Dispose();
expectedSelected.Dispose();
renderer.Dispose();
}
/// <summary>
/// Renders a <see cref="IMultiLineString"/>.
/// </summary>
/// <param name="lines">IMultiLineString to be rendered.</param>
/// <param name="fill">Pen used for filling (null or transparent for no filling).</param>
/// <param name="highlightFill">Pen used for filling when highlighted.</param>
/// <param name="selectFill">Pen used for filling when selected.</param>
/// <param name="outline">Outline pen style (null if no outline).</param>
/// <param name="highlightOutline">Outline pen style used when highlighted.</param>
/// <param name="selectOutline">Outline pen style used when selected.</param>
public virtual IEnumerable <TRenderObject> DrawMultiLineString(
IMultiLineString lines, StylePen fill, StylePen highlightFill, StylePen selectFill,
StylePen outline, StylePen highlightOutline, StylePen selectOutline, RenderState renderState)
{
if (lines == null)
{
throw new ArgumentNullException("lines");
}
return(drawLineStrings(lines, fill, highlightFill, selectFill,
outline, highlightOutline, selectOutline, renderState));
}
private static Pen getPen(StylePen stylePen)
{
if (stylePen == null)
{
return(null);
}
PenLookupKey key = new PenLookupKey(stylePen.GetType().TypeHandle, stylePen.GetHashCode());
Pen pen;
_penCache.TryGetValue(key, out pen);
return(pen);
}
/// <summary>
/// Renders a <see cref="IMultiPolygon"/>.
/// </summary>
/// <param name="multipolygon">IMultiPolygon to render.</param>
/// <param name="fill">
/// Brush used for filling (null or transparent for no filling).
/// </param>
/// <param name="highlightFill">
/// Brush used for filling when highlighted.
/// </param>
/// <param name="selectFill">
/// Brush used for filling when selected.
/// </param>
/// <param name="outline">
/// Outline pen style (null if no outline).
/// </param>
/// <param name="highlightOutline">
/// Outline pen style used when highlighted.
/// </param>
/// <param name="selectOutline">
/// Outline pen style used when selected.
/// </param>
public virtual IEnumerable <TRenderObject> DrawMultiPolygon(IMultiPolygon multipolygon,
StyleBrush fill, StyleBrush highlightFill, StyleBrush selectFill,
StylePen outline, StylePen highlightOutline, StylePen selectOutline,
RenderState renderState)
{
if (multipolygon == null)
{
throw new ArgumentNullException("multipolygon");
}
return(drawPolygons(multipolygon, fill, highlightFill, selectFill,
outline, highlightOutline, selectOutline, renderState));
}
public static StylePen RandomPen()
{
StylePen p = new StylePen(RandomColor(), random.Next(1, 5))
{
Alignment = StylePenAlignment.Center,
LineJoin = StyleLineJoin.MiterClipped,
MiterLimit = 2,
StartCap = StyleLineCap.NoAnchor,
EndCap = StyleLineCap.NoAnchor
};
return(p);
}
public void RenderPathWithOutlineOnly()
{
Point2D[] points = new Point2D[8];
points[0] = new Point2D(10, 10);
points[1] = new Point2D(11, 11);
points[2] = new Point2D(10, 0);
points[3] = new Point2D(0, 0);
points[4] = new Point2D(-1, -1);
points[5] = new Point2D(0, 0);
points[6] = new Point2D(0, 5);
points[7] = new Point2D(0, 10);
Path2D path = new Path2D(points, true);
StylePen outline = new StylePen(new SolidStyleBrush(StyleColor.WhiteSmoke), 1);
TestVector2DRenderer r = new TestVector2DRenderer();
IEnumerable <String> result =
r.RenderPaths(new Path2D[] { path }, outline, outline, outline, RenderState.Normal);
}
public override IEnumerable <CairoRenderObject> RenderPaths(IEnumerable <Path2D> paths, StylePen line,
StylePen highlightLine, StylePen selectLine,
StylePen outline, StylePen highlightOutline,
StylePen selectOutline, RenderState renderState)
{
foreach (Path2D path in paths)
{
CairoRenderObject holder =
new CairoRenderObject(path, null, null, null, ViewConverter.Convert(line),
ViewConverter.Convert(highlightLine), ViewConverter.Convert(selectLine),
ViewConverter.Convert(outline), ViewConverter.Convert(highlightOutline),
ViewConverter.Convert(selectOutline));
holder.State = renderState;
yield return(holder);
}
}
public static Pen Convert(StylePen pen)
{
if (pen == null)
{
return(null);
}
Pen gdiPen;
gdiPen = getPen(pen);
if (gdiPen == null)
{
Brush brush = Convert(pen.BackgroundBrush);
gdiPen = new Pen(brush, (Single)pen.Width);
gdiPen.Alignment = (PenAlignment)(Int32)pen.Alignment;
if (pen.CompoundArray != null)
{
gdiPen.CompoundArray = pen.CompoundArray;
}
//gdiPen.CustomEndCap = new System.Drawing.Drawing2D.CustomLineCap();
//gdiPen.CustomStartCap = new System.Drawing.Drawing2D.CustomLineCap();
gdiPen.DashCap = (DashCap)(Int32)pen.DashCap;
gdiPen.DashOffset = pen.DashOffset;
if (pen.DashPattern != null)
{
gdiPen.DashPattern = pen.DashPattern;
}
gdiPen.DashStyle = (DashStyle)(Int32)pen.DashStyle;
gdiPen.EndCap = (LineCap)(Int32)pen.EndCap;
gdiPen.LineJoin = (LineJoin)(Int32)pen.LineJoin;
gdiPen.MiterLimit = pen.MiterLimit;
//gdiPen.PenType = System.Drawing.Drawing2D.PenType...
gdiPen.StartCap = (LineCap)(Int32)pen.StartCap;
gdiPen.Transform = Convert(pen.Transform);
savePen(pen, gdiPen);
}
return(gdiPen);
}
private IEnumerable <TRenderObject> drawPolygons(IEnumerable <IPolygon> polygons,
StyleBrush fill, StyleBrush highlightFill, StyleBrush selectFill,
StylePen outline, StylePen highlightOutline, StylePen selectOutline,
RenderState renderState)
{
if (fill == null)
{
throw new ArgumentNullException("fill");
}
if (outline == null)
{
throw new ArgumentNullException("outline");
}
IEnumerable <Path2D> paths = convertToPaths(polygons);
if (highlightFill == null)
{
highlightFill = fill;
}
if (selectFill == null)
{
selectFill = fill;
}
if (highlightOutline == null)
{
highlightOutline = outline;
}
if (selectOutline == null)
{
selectOutline = outline;
}
IEnumerable <TRenderObject> renderedObjects = VectorRenderer.RenderPaths(
paths, fill, highlightFill, selectFill, outline,
highlightOutline, selectOutline, renderState);
return(renderedObjects);
}
public override IEnumerable <GdiRenderObject> RenderPaths(
IEnumerable <Path2D> paths, StyleBrush fill, StyleBrush highlightFill,
StyleBrush selectFill, StylePen outline, StylePen highlightOutline, StylePen selectOutline,
RenderState renderState)
{
foreach (Path2D path in paths)
{
GdiPath gdiPath = ViewConverter.Convert(path);
GdiRenderObject holder = new GdiRenderObject(gdiPath, ViewConverter.Convert(fill),
ViewConverter.Convert(highlightFill),
ViewConverter.Convert(selectFill),
null, null, null,
ViewConverter.Convert(outline),
ViewConverter.Convert(highlightOutline),
ViewConverter.Convert(selectOutline));
holder.State = renderState;
yield return(holder);
}
}
/// <summary>
/// Creates a new GdiRenderObject instance.
/// </summary>
/// <param name="image">The symbol to draw.</param>
/// <param name="imageBounds">The location and size to draw the symbol.</param>
/// <param name="transform">The affine transform applied to the symbol before drawing.</param>
/// <param name="colorTransform">The color transform applied to the symbol before drawing.</param>
public CairoRenderObject(Surface image, Rectangle imageBounds, CairoMatrix transform, CairoMatrix colorTransform)
{
_state = RenderState.Normal;
Image = image;
Bounds = imageBounds;
AffineTransform = transform;
ColorTransform = colorTransform;
Path = null;
Fill = null;
HighlightFill = null;
SelectFill = null;
Line = null;
HighlightLine = null;
SelectLine = null;
Outline = null;
HighlightOutline = null;
SelectOutline = null;
Text = null;
Font = null;
}
private IEnumerable <TRenderObject> drawLineStrings(IEnumerable <ILineString> lines,
StylePen fill, StylePen highlightFill, StylePen selectFill,
StylePen outline, StylePen highlightOutline, StylePen selectOutline,
RenderState renderState)
{
if (fill == null)
{
throw new ArgumentNullException("fill");
}
IEnumerable <Path2D> paths = convertToPaths(lines);
if (highlightFill == null)
{
highlightFill = fill;
}
if (selectFill == null)
{
selectFill = fill;
}
if (highlightOutline == null)
{
highlightOutline = outline;
}
if (selectOutline == null)
{
selectOutline = outline;
}
IEnumerable <TRenderObject> renderedObjects = VectorRenderer.RenderPaths(paths,
fill, highlightFill, selectFill, outline, highlightOutline, selectOutline,
renderState);
foreach (TRenderObject ro in renderedObjects)
{
yield return(ro);
}
}
/// <summary>
/// Creates a new CairoRenderObject instance.
/// </summary>
/// <param name="path">The path to draw.</param>
/// <param name="fill">
/// The brush used to fill the path when the state is <see cref="RenderState.Normal"/>.
/// </param>
/// <param name="highlightFill">
/// The brush used to fill the path when the state is <see cref="RenderState.Highlighted"/>.
/// </param>
/// <param name="selectFill">
/// The brush used to fill the path when the state is <see cref="RenderState.Selected"/>.
/// </param>
/// <param name="line">
/// The pen used to draw a line when the state is <see cref="RenderState.Normal"/>.
/// </param>
/// <param name="highlightLine">
/// The pen used to draw a line when the state is <see cref="RenderState.Highlighted"/>.
/// </param>
/// <param name="selectLine">
/// The pen used to draw a line when the state is <see cref="RenderState.Selected"/>.
/// </param>
/// <param name="outline">
/// The pen used to outline the path when the state is <see cref="RenderState.Normal"/>.
/// </param>
/// <param name="highlightOutline">
/// The pen used to outline the path when the state is <see cref="RenderState.Highlighted"/>.
/// </param>
/// <param name="selectOutline">
/// The pen used to outline the path when the state is <see cref="RenderState.Selected"/>.
/// </param>
public CairoRenderObject(Path2D path, StyleBrush fill, StyleBrush highlightFill, StyleBrush selectFill,
StylePen line, StylePen highlightLine, StylePen selectLine,
StylePen outline, StylePen highlightOutline, StylePen selectOutline)
{
_state = RenderState.Normal;
Path = path;
Fill = fill;
HighlightFill = highlightFill;
SelectFill = selectFill;
Line = line;
HighlightLine = highlightLine;
SelectLine = selectLine;
Outline = outline;
HighlightOutline = highlightOutline;
SelectOutline = selectOutline;
Image = null;
Bounds = new Rectangle();
AffineTransform = new CairoMatrix();
ColorTransform = null;
Text = null;
Font = null;
}
private static void savePen(StylePen stylePen, Pen pen)
{
_penCache[new PenLookupKey(stylePen.GetType().TypeHandle, stylePen.GetHashCode())] = pen;
}
private static Stream RandomIcon(out Size2D sz)
{
sz = RandomSymbolSize();
Bitmap b = new Bitmap((int)sz.Width, (int)sz.Height);
Graphics g = Graphics.FromImage(b);
g.Clear(Color.Transparent);
int rnd = random.Next(6);
switch (rnd)
{
case 0:
{
StylePen p = RandomPen();
g.DrawEllipse(ViewConverter.Convert(p), (int)Math.Ceiling(p.Width / 2),
(int)Math.Ceiling(p.Width / 2), b.Width - (int)p.Width,
b.Height - (int)p.Width);
break;
}
case 1:
{
g.FillEllipse(ViewConverter.Convert(RandomBrush()), 0, 0, b.Width, b.Height);
break;
}
case 2:
{
StylePen p = RandomPen();
g.DrawRectangle(ViewConverter.Convert(p), (int)Math.Ceiling(p.Width / 2),
(int)Math.Ceiling(p.Width / 2), b.Width - (int)p.Width,
b.Height - (int)p.Width);
break;
}
case 3:
g.FillRectangle(ViewConverter.Convert(RandomBrush()), 0, 0, b.Width, b.Height);
break;
case 4:
{
StylePen p = RandomPen();
g.FillEllipse(ViewConverter.Convert(RandomBrush()), 0, 0, b.Width, b.Height);
g.DrawEllipse(ViewConverter.Convert(p), (int)Math.Ceiling(p.Width / 2),
(int)Math.Ceiling(p.Width / 2), b.Width - (int)p.Width,
b.Height - (int)p.Width);
break;
}
case 5:
{
StylePen p = RandomPen();
g.FillRectangle(ViewConverter.Convert(RandomBrush()), 0, 0, b.Width, b.Height);
g.DrawRectangle(ViewConverter.Convert(p), (int)Math.Ceiling(p.Width / 2),
(int)Math.Ceiling(p.Width / 2), b.Width - (int)p.Width,
b.Height - (int)p.Width);
break;
}
}
MemoryStream ms = new MemoryStream();
b.Save(ms, ImageFormat.Png);
return(ms);
}
/// <summary>
/// Creates a new selection using the <see cref="DefaultOutline"/> and <see cref="DefaultFill"/>
/// for the <see cref="OutlineStyle"/> and <see cref="FillBrush"/> respectively.
/// </summary>
public ViewSelection()
{
_outline = DefaultOutline;
_fill = DefaultFill;
}