public bool NextDraw(Point pt, IDrawingContext dc, bool isFinal)
{
if (iPoint == pointCount)
{
return(true);
}
Points[iPoint] = pt;
var p0 = PointSnapper.SnapPoint(Points[0]);
var p1 = PointSnapper.SnapPoint(Points[1]);
dc.DrawLine(Pen, p0, p1);
if (iPoint == 2)
{
var p2 = PointSnapper.SnapPoint(Points[2]);
var diffX = p1.X - p2.X;
var diffY = p1.Y - p2.Y;
Point pt00 = new Point(p0.X - diffX, p0.Y - diffY);
dc.DrawLine(Pen, pt00, p2);
}
if (isFinal)
{
iPoint++;
}
return(iPoint == PointCount);
}
public bool NextDraw(Point pt, IDrawingContext dc, bool isFinal)
{
Points[1] = pt;
var p0 = PointSnapper.SnapPoint(Points[0]);
var p1 = PointSnapper.SnapPoint(Points[1]);
dc.DrawLine(Pen, p0, p1);
if (isFinal)
{
CreateRegion();
}
return(isFinal);
}
private void ChartControl_PointerMoved(object sender, PointerRoutedEventArgs e)
{
e.Handled = true;
if (!IsShowCursor() || _mainCollection == null)
{
return;
}
var cursorPos = e.GetCurrentPoint(this).Position;
_gestureRecognizer.ProcessMoveEvents(e.GetIntermediatePoints(this));
//Debug.WriteLine("Move " + cursorPos.ToString());
if (!IsPointInChart(cursorPos))
{
DropPointerAction();
return;
}
midPoint = cursorPos;
if (_drawingCustomGraphics != null)
{
if (_isCustomGraphicsDrawingStarted)
{
CreateCurrentCustomGraphicVisual(cursorPos, false);
}
}
else if (IsUpdatingGraphicLocation())
{
UpdateGraphicLocation(cursorPos);
}
else if (pointerAction == PointerAction.None)
{
SetCursorPosition(cursorPos);
RestartTooltipTimer();
}
else if (pointerAction == PointerAction.ZoomIn || pointerAction == PointerAction.Select)
{
CreateSelectionRectVisual(PointSnapper.RoundPoint(startPoint.Value), PointSnapper.RoundPoint(cursorPos));
}
else if (pointerAction == PointerAction.Measure)
{
CreateRulerVisual(PointSnapper.SnapPoint(startPoint.Value), PointSnapper.SnapPoint(cursorPos), GetChange(startPoint.Value.Y, cursorPos.Y));
}
}
private void CreateRegion()
{
regionGeo = new StreamGeometry();
var p0 = PointSnapper.SnapPoint(Points[0]);
var p1 = PointSnapper.SnapPoint(Points[1]);
using (var gdc = regionGeo.Open())
{
var ptTemp = new Point(p0.X, p0.Y - 3);
gdc.BeginFigure(ptTemp, true, true);
ptTemp = new Point(p1.X, p1.Y - 3);
gdc.LineTo(ptTemp, false, false);
ptTemp = new Point(p1.X, p1.Y + 3);
gdc.LineTo(ptTemp, false, false);
ptTemp = new Point(p0.X, p0.Y + 3);
gdc.LineTo(ptTemp, false, false);
}
}
public void Draw(IDrawingContext dc)
{
var p0 = PointSnapper.SnapPoint(Points[0]);
var p1 = PointSnapper.SnapPoint(Points[1]);
dc.DrawLine(Pen, p0, p1);
if (IsSelected)
{
selectionGeo1 = new RectangleGeometry(new Rect(PointSnapper.RoundValue(p0.X - 3), PointSnapper.RoundValue(p0.Y - 3),
6, 6));
selectionGeo2 = new RectangleGeometry(new Rect(PointSnapper.RoundValue(p1.X - 3), PointSnapper.RoundValue(p1.Y - 3),
6, 6));
dc.DrawGeometry(Pen.Brush, null, selectionGeo1);
dc.DrawGeometry(Pen.Brush, null, selectionGeo2);
}
CreateRegion();
}
public void Draw(IDrawingContext dc)
{
if (iPoint != pointCount)
{
return;
}
var pts = new Point[pointCount];
for (int i = 0; i < pointCount; i++)
{
pts[i] = PointSnapper.SnapPoint(Points[i]);
}
dc.DrawLine(Pen, pts[0], pts[1]);
var diffX = pts[1].X - pts[2].X;
var diffY = pts[1].Y - pts[2].Y;
Point pt00 = new Point(pts[0].X - diffX, pts[0].Y - diffY);
dc.DrawLine(Pen, pt00, pts[2]);
if (IsSelected)
{
selectionGeoList = new List <RectangleGeometry>();
for (int i = 0; i < PointCount; i++)
{
var selectionGeo = new RectangleGeometry(new Rect(PointSnapper.RoundValue(pts[i].X - 3), PointSnapper.RoundValue(pts[i].Y - 3),
6, 6));
dc.DrawGeometry(Pen.Brush, null, selectionGeo);
selectionGeoList.Add(selectionGeo);
}
}
CreateRegion(pts);
}