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using System.Linq;
using RealTimeGraphEx.ExtensionMethods;
namespace RealTimeGraphEx.DX2D
{
using SharpDX;
using SharpDX.Direct2D1;
using System;
using System.Collections.Generic;
public class DXGraphSurfaceSingleErase : Direct2DControl
{
private Vector2[] lastPoints;
private Vector2[] lastPointsFill;
private System.Windows.Media.Brush _fill;
private System.Windows.Media.Brush _stroke;
private System.Windows.Media.Brush _markerBrush;
private float _markerStrokeWidth;
private float _markerPosition;
private bool _showMarker;
private double _strokeWidth;
private bool _fillGraph;
private bool _antialiazed;
private bool updated;
public DXGraphSurfaceSingleErase()
{
lastPoints = new Vector2[0];
lastPointsFill = new Vector2[0];
}
public void SetProperties(Vector2[] polygonPoints, Vector2[] polygonPointsFill, System.Windows.Media.Brush stroke, double strokeWidth, bool fillGraph, System.Windows.Media.Brush fill, bool antialized, System.Windows.Media.Brush markerBrush, double markerPosition, bool showMarker, double markerStrokeWidth)
{
_stroke = stroke;
_fill = fill;
_fillGraph = fillGraph;
_strokeWidth = strokeWidth;
_antialiazed = antialized;
_markerBrush = markerBrush;
_markerStrokeWidth = (float)markerStrokeWidth;
_markerPosition = (float)markerPosition;
_showMarker = showMarker;
lock (lastPoints)
{
lastPoints = polygonPoints;
lastPointsFill = polygonPointsFill;
updated = true;
}
}
/// <summary>
/// Does the actual rendering.
/// BeginDraw and EndDraw are already called by the caller.
/// </summary>
public override void Render(RenderTarget target)
{
if (lastPoints.Length > 0 && updated)
{
target.Clear(Color.Transparent);
var stroke = _stroke.ToDxBrush(target);
var fill = _fill.ToDxBrush(target);
target.AntialiasMode = _antialiazed ? AntialiasMode.PerPrimitive : AntialiasMode.Aliased;
lock (lastPoints)
{
target.DrawPolygon(m_d2dFactory, stroke, _strokeWidth, lastPoints);
if (_fillGraph && _fill != null)
{
target.FillPolygon(m_d2dFactory, fill, lastPointsFill);
}
if (_showMarker && _markerBrush != null)
{
var markerBrush = _markerBrush.ToDxBrush(target);
target.DrawLine(new Vector2(_markerPosition, 0), new Vector2(_markerPosition, (float)this.ActualHeight), markerBrush, _markerStrokeWidth);
markerBrush.Dispose();
}
updated = false;
GC.Collect(GC.MaxGeneration, GCCollectionMode.Optimized, blocking: false);
}
}
DisableRendering();
}
}
}
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