private void DoRender()
{
if (PrimitiveTransform == null || PrimitiveList == null)
{
return;
}
_drawingGroup.Children.Clear();
DrawingContext dc = _drawingGroup.Append();
// Need to draw something on the whole rectangle, otherwise it doesn't align properly
dc.DrawGeometry(new SolidColorBrush(Color.FromArgb(1, 255, 255, 255)), null, _drawingGroup.ClipGeometry);
if (BackgroundImage != null)
{
Rect rect = PrimitiveTransform.TransformBounds(PrimitiveDataRange);
dc.DrawImage(BackgroundImage, rect);
}
foreach (IChartRendererWPF primitive in PrimitiveList)
{
primitive.RenderFilledElements(dc, ChartDataRange, PrimitiveTransform);
}
foreach (IChartRendererWPF primitive in PrimitiveList)
{
primitive.RenderUnfilledElements(dc, ChartDataRange, PrimitiveTransform);
}
// Now render the points
Rect clipBounds = _drawingGroup.ClipGeometry.Bounds;
Rect bounds = new Rect(-3, -3, clipBounds.Width + 6, clipBounds.Height + 6);
foreach (ChartPrimitive primitive in PrimitiveList)
{
if (primitive.ShowPoints)
{
Brush pointBrush = new SolidColorBrush(primitive.PointColor);
Pen pointPen = new Pen(pointBrush, 1);
foreach (Point point in primitive.Points)
{
Point transformedPoint = PrimitiveTransform.Transform(point);
if (bounds.Contains(transformedPoint))
{
dc.DrawEllipse(null, pointPen, transformedPoint, 2, 2);
// How to draw text next to each point
//FormattedText formattedLabel = new FormattedText(point.ToString(), System.Globalization.CultureInfo.CurrentCulture, FlowDirection.LeftToRight, new Typeface("Arial"), 10, pointBrush);
//var invertY = new ScaleTransform(1, -1);
//dc.PushTransform(invertY);
//dc.DrawText(formattedLabel, invertY.Transform(transformedPoint));
//dc.Pop();
}
}
}
}
dc.Close();
}
private void DoRender()
{
if (PrimitiveTransform == null || PrimitiveList == null)
{
return;
}
_drawingGroup.Children.Clear();
DrawingContext dc = _drawingGroup.Append();
// Need to draw something on the whole rectangle, otherwise it doesn't align properly
dc.DrawGeometry(new SolidColorBrush(Color.FromArgb(1, 255, 255, 255)), null, _drawingGroup.ClipGeometry);
foreach (IChartRendererWPF primitive in PrimitiveList)
{
primitive.RenderFilledElements(dc, ChartDataRange, PrimitiveTransform);
}
foreach (IChartRendererWPF primitive in PrimitiveList)
{
primitive.RenderUnfilledElements(dc, ChartDataRange, PrimitiveTransform);
}
// Now render the points
Rect clipBounds = _drawingGroup.ClipGeometry.Bounds;
Rect bounds = new Rect(-3, -3, clipBounds.Width + 6, clipBounds.Height + 6);
foreach (ChartPrimitive primitive in PrimitiveList)
{
if (primitive.ShowPoints)
{
Brush pointBrush = new SolidColorBrush(primitive.PointColor);
Pen pointPen = new Pen(pointBrush, 1);
foreach (Point point in primitive.Points)
{
Point transformedPoint = PrimitiveTransform.Transform(point);
if (bounds.Contains(transformedPoint))
{
dc.DrawEllipse(null, pointPen, transformedPoint, 2, 2);
}
}
}
}
dc.Close();
}
private void DoRender(IntPtr pIDXGISurface, bool dunnoWhatThisIsFor)
{
if (pIDXGISurface != m_pIDXGISurfacePreviousNoRef)
{
m_pIDXGISurfacePreviousNoRef = pIDXGISurface;
// Create the render target
Surface dxgiSurface = new Surface(pIDXGISurface);
SurfaceDescription sd = dxgiSurface.Description;
RenderTargetProperties rtp =
new RenderTargetProperties(
RenderTargetType.Default,
new PixelFormat(Format.Unknown, SharpDX.Direct2D1.AlphaMode.Premultiplied),
96,
96,
// Force bitmap rendering if you want it to work on remote desktop connections
RenderTargetUsage.None,
FeatureLevel.Level_DEFAULT);
try {
_renderTarget = new RenderTarget(_d2dFactory, dxgiSurface, rtp);
} catch (Exception) {
return;
}
// Clear the surface to transparent
//_renderTarget.BeginDraw();
//_renderTarget.Clear(new ColorF(1, 1, 1, 0));
//_renderTarget.EndDraw();
_isValid = true;
}
if (PrimitiveTransform == null || PrimitiveList == null)
{
return;
}
_renderTarget.BeginDraw();
_renderTarget.Clear(new SharpDX.Mathematics.Interop.RawColor4(1, 1, 1, 0));
foreach (IChartRendererD2D primitive in PrimitiveList)
{
primitive.RenderFilledElements(this, ChartDataRange, PrimitiveTransform);
}
foreach (IChartRendererD2D primitive in PrimitiveList)
{
primitive.RenderUnfilledElements(this, ChartDataRange, PrimitiveTransform);
}
// Now render the points
System.Windows.Rect bounds = new System.Windows.Rect(-3, -3, _canvasRect.Width + 6, _canvasRect.Height + 6);
foreach (ChartPrimitive primitive in PrimitiveList)
{
if (primitive.ShowPoints)
{
var brush = new SolidColorBrush(RenderTarget, primitive.PointColor.ToD2D());
Ellipse ellipse = new Ellipse(new SharpDX.Mathematics.Interop.RawVector2(0, 0), 2, 2);
foreach (Point point in primitive.Points)
{
Point transformedPoint = PrimitiveTransform.Transform(point);
if (bounds.Contains(transformedPoint))
{
ellipse.Point = transformedPoint.ToD2D();
RenderTarget.DrawEllipse(ellipse, brush, 1);
}
}
}
}
_renderTarget.EndDraw();
}
/// <summary>
/// Draws a mouse cursor on the adorened element
/// </summary>
/// <param name="drawingContext"></param>
protected override void OnRender(DrawingContext drawingContext)
{
GeneralTransform inverse = PrimitiveTransform.Inverse;
if (inverse == null)
{
return;
}
Func <double, string> DefaultLabelGenerator = x => x.ToString();
// Make sure these functions are assigned
XAxisLabelGenerator = XAxisLabelGenerator ?? DefaultLabelGenerator;
YAxisLabelGenerator = YAxisLabelGenerator ?? DefaultLabelGenerator;
//_closestPointPicker.MouseMoved(MousePoint, inverse);
Brush blackBrush = new SolidColorBrush(Colors.Black);
Pen thinBlackPen = new Pen(blackBrush, 0.5);
float radius = 15;
if (_locked)
{
// Draw the little circle around the lock point
Pen blackPen = new Pen(blackBrush, 3);
Point point = PrimitiveTransform.Transform(_lockPoint);
drawingContext.DrawEllipse(null, blackPen, point, 2.5, 2.5);
drawingContext.DrawEllipse(null, new Pen(new SolidColorBrush(Colors.White), 2), point, 2.5, 2.5);
// Draw the big yellow circle
Pen yellowPen = new Pen(new SolidColorBrush(Colors.Yellow), 2);
drawingContext.DrawEllipse(null, blackPen, _mousePoint, radius, radius);
drawingContext.DrawEllipse(null, yellowPen, _mousePoint, radius, radius);
if (_drawWholePlotCursor)
{
drawingContext.DrawLine(thinBlackPen, new Point(point.X, 0), new Point(point.X, point.Y - 4));
drawingContext.DrawLine(thinBlackPen, new Point(point.X, point.Y + 4), new Point(point.X, this.ActualHeight));
drawingContext.DrawLine(thinBlackPen, new Point(0, point.Y), new Point(point.X - 4, point.Y));
drawingContext.DrawLine(thinBlackPen, new Point(point.X + 4, point.Y), new Point(this.ActualWidth, point.Y));
}
}
else
{
// Draw the target symbol
drawingContext.DrawEllipse(null, thinBlackPen, _mousePoint, radius, radius);
if (_drawWholePlotCursor)
{
drawingContext.DrawLine(thinBlackPen, new Point(_mousePoint.X, 0), new Point(_mousePoint.X, _mousePoint.Y - 2));
drawingContext.DrawLine(thinBlackPen, new Point(_mousePoint.X, _mousePoint.Y + 2), new Point(_mousePoint.X, this.ActualHeight));
drawingContext.DrawLine(thinBlackPen, new Point(0, _mousePoint.Y), new Point(_mousePoint.X - 2, _mousePoint.Y));
drawingContext.DrawLine(thinBlackPen, new Point(_mousePoint.X + 2, _mousePoint.Y), new Point(this.ActualWidth, _mousePoint.Y));
}
else
{
drawingContext.DrawLine(thinBlackPen, new Point(_mousePoint.X - radius * 1.6, _mousePoint.Y), new Point(_mousePoint.X - 2, _mousePoint.Y));
drawingContext.DrawLine(thinBlackPen, new Point(_mousePoint.X + radius * 1.6, _mousePoint.Y), new Point(_mousePoint.X + 2, _mousePoint.Y));
drawingContext.DrawLine(thinBlackPen, new Point(_mousePoint.X, _mousePoint.Y - radius * 1.6), new Point(_mousePoint.X, _mousePoint.Y - 2));
drawingContext.DrawLine(thinBlackPen, new Point(_mousePoint.X, _mousePoint.Y + radius * 1.6), new Point(_mousePoint.X, _mousePoint.Y + 2));
}
}
// Draw the coordinate text
// Works out the number of decimal places required to show the difference between
// 2 pixels. E.g if pixels are .1 apart then use 2 places etc
Rect rect = inverse.TransformBounds(new Rect(0, 0, 1, 1));
int xFigures = Math.Max(1, (int)(Math.Ceiling(-Math.Log10(rect.Width)) + .1));
int yFigures = Math.Max(1, (int)(Math.Ceiling(-Math.Log10(rect.Height)) + .1));
// Number of significant figures for the x coordinate
string xFormat = "#0." + new string('#', xFigures);
/// Number of significant figures for the y coordinate
string yFormat = "#0." + new string('#', yFigures);
string coordinateText;
if (_locked && _pointToText.ContainsKey(_lockPoint))
{
coordinateText = _pointToText[_lockPoint];
}
else
{
Point coordinate = _locked ? _lockPoint : inverse.Transform(_mousePoint);
coordinateText = XAxisLabelGenerator(Math.Round(coordinate.X, xFigures)) + " , " + YAxisLabelGenerator(Math.Round(coordinate.Y, yFigures));
}
drawingContext.PushTransform(new ScaleTransform(1, -1));
FormattedText formattedText = new FormattedText(coordinateText, CultureInfo.CurrentCulture, FlowDirection.LeftToRight, new Typeface("Arial"), 10, blackBrush);
Rect textBoxRect = new Rect(new Point(_mousePoint.X + radius * .7, -_mousePoint.Y + radius * .7), new Size(formattedText.Width, formattedText.Height));
double diff = textBoxRect.Right + 3 - ActualWidth;
if (diff > 0)
{
textBoxRect.Location = new Point(textBoxRect.Left - diff, textBoxRect.Top);
}
drawingContext.DrawRectangle(textBoxPen.Brush, textBoxPen, textBoxRect);
drawingContext.DrawText(formattedText, textBoxRect.Location);
drawingContext.Pop();
}