/// <summary>
/// Called to actually render the game content to the backbuffer, which will be flipped with
/// the currently displayed buffer to show the next frame.
/// </summary>
/// <param name="gameTime">Current time information of the application</param>
protected override void Draw(GameTime gameTime)
{
Rectangle CircleDest;
int nVertCtr, nPolyCtr;
List <Vector2> VertList = new List <Vector2>();
List <Vector2> CurveVerts;
Rectangle rectCurveBounds;
Texture2D LineTexture = new Texture2D(GraphicsDevice, 1, 1);
LineTexture.SetData(new[] { Color.Cyan });
cGraphDevMgr.GraphicsDevice.Clear(Color.Black);
cDrawBatch.Begin(SpriteSortMode.Deferred, BlendState.NonPremultiplied);
for (nPolyCtr = 0; nPolyCtr < cPolyList.Count; nPolyCtr++)
{
VertList.Clear();
VertList.AddRange(cPolyList[nPolyCtr].GetVertexes(false));
//Draw circles at each vertex
for (nVertCtr = 0; nVertCtr < VertList.Count; nVertCtr++)
{
CircleDest.X = (int)(VertList[nVertCtr].X - CIRCLERADIUS);
CircleDest.Y = (int)(VertList[nVertCtr].Y - CIRCLERADIUS);
CircleDest.Height = CIRCLERADIUS * 2;
CircleDest.Width = CIRCLERADIUS * 2;
cDrawBatch.Draw(cCircleTexture, CircleDest, Color.Gray);
}
//Draw the polygons
cPolyList[nPolyCtr].Draw();
}
VertList.Clear();
VertList.AddRange(cPolyList[1].GetVertexes(false));
MGMath.CubicBezierCurvePoints(VertList[0], VertList[3], VertList[1], VertList[2], 10, out CurveVerts);
MGMath.CubicBezierCurveBoundaries(VertList[0], VertList[3], VertList[1], VertList[2], out rectCurveBounds);
DrawTools.DrawLineSeries(GraphicsDevice, cDrawBatch, Color.LightYellow, 2, CurveVerts);
DrawTools.DrawRectangle(GraphicsDevice, cDrawBatch, Color.RosyBrown, 2, rectCurveBounds);
//Always draw console last
cDevConsole.Draw(cDrawBatch);
cDrawBatch.End();
//Use monogame draw
base.Draw(gameTime);
}
public void DrawVolume(Rect camRect)
{
if (!IsSettingsSet)
{
return;
}
float worldRealToScreen = (CoordGrid.FromDateToXAxis(visibleEndDate) - CoordGrid.FromDateToXAxis(visibleStartDate)) / (worldPointInRightUpCorner.x - worldPointInLeftDownCorner.x);
int count = DateTimeTools.CountFramesInPeriod(chartDataManager.TFrame, visibleStartDate, visibleEndDate, TimeSpan.Zero);
float pixelLenghtFrame = camRect.width * worldRealToScreen / count;
float maxVolume = (float)visibleFluctuations.Max(x => x.Volume);
//Если свечка видна только частично, то необходимо смещать отрисовку объёма на равную долю видимости
float diff = (worldPointInLeftDownCorner.x - CoordGrid.FromDateToXAxis(visibleStartDate)) * camRect.width / (worldPointInRightUpCorner.x - worldPointInLeftDownCorner.x);
Vector2 barLeftDownCorner = camRect.min - new Vector2(diff + pixelLenghtFrame / 2, 0);
Vector2 barRightUpCorner;
Vector2 bordersOffset = new Vector2((20 / count < 1 ? 1 : 20 / count), 0);
if (chartDataManager.WorkBeginTime > visibleStartDate)
{
int shift = DateTimeTools.CountFramesInPeriod(chartDataManager.TFrame, visibleStartDate, chartDataManager.WorkBeginTime, TimeSpan.Zero);
barLeftDownCorner += new Vector2(shift * pixelLenghtFrame, 0);
}
foreach (var fluctuation in visibleFluctuations)
{
float pixelHeightFrame = (float)fluctuation.Volume / maxVolume * camRect.height;
barRightUpCorner = barLeftDownCorner + new Vector2(pixelLenghtFrame, pixelHeightFrame);
DrawTools.DrawRectangle(barLeftDownCorner + bordersOffset, barRightUpCorner - bordersOffset, fluctuation.Close - fluctuation.Open > 0 ? volumeUpColor : volumeDownColor);
barLeftDownCorner = new Vector2(barRightUpCorner.x, camRect.min.y);
}
}