private void GetAreaPosition(ChartArea area)
{
if (_host == null ||
_host.Child == null)
{
return;
}
ChartAreaPosition position = _areaPositions.Find(pos => pos.Area.Name == area.Name);
if (position == null)
{
position = new ChartAreaPosition();
_areaPositions.Add(position);
position.Area = area;
}
position.LeftPoint = _host.Child.Left + _host.Child.Width * (area.InnerPlotPosition.X / 100);
position.RightPoint = position.LeftPoint + _host.Child.Width * (area.InnerPlotPosition.Width / 100);
position.UpPoint = _chart.Height - _chart.Height * ((100 - area.Position.Y) / 100);
position.DownPoint = position.UpPoint + _host.Child.Height * (area.Position.Height / 100);
}
private void _chart_MouseMove2(object sender, MouseEventArgs e)
{
if (_chart.Cursor == Cursors.SizeAll)
{
return;
}
if (_chart.ChartAreas.Count < 1)
{
return;
}
if (e.Button == MouseButtons.Left &&
_chart.Cursor == Cursors.Arrow)
{
return;
}
if (_volume.VolumeClusters == null ||
_volume.VolumeClusters.Count < 3)
{
return;
}
if (_areaPositions.Count != _chart.ChartAreas.Count ||
_areaPositions.Find(posi => posi.RightPoint == 0) != null)
{
_areaPositions = new List <ChartAreaPosition>();
ReloadChartAreasSize();
}
if (_chart.Cursor == Cursors.Hand ||
_chart.Cursor == Cursors.SizeNS ||
_areaPositions == null)
{
return;
}
ChartAreaPosition myPosition = null;
MouseEventArgs mouse = (MouseEventArgs)e;
ChartAreaPosition pos = _areaPositions[0];
if ((pos.LeftPoint < e.X &&
pos.RightPoint > e.X &&
pos.DownPoint - 30 < e.Y &&
pos.DownPoint - 10 > e.Y)
||
(mouse.Button == MouseButtons.Left && _chart.Cursor == Cursors.SizeWE && pos.LeftPoint < e.X &&
pos.RightPoint > e.X &&
pos.DownPoint - 200 < e.Y &&
pos.DownPoint + 100 > e.Y))
{
myPosition = pos;
_chart.Cursor = Cursors.SizeWE;
}
else
{
pos.ValueYMouseOnClickStart = 0;
pos.HeightAreaOnClick = 0;
pos.ValueYChartOnClick = 0;
}
if (myPosition == null)
{
_chart.Cursor = Cursors.Arrow;
return;
}
if (mouse.Button != MouseButtons.Left)
{
myPosition.ValueXMouseOnClickStart = 0;
myPosition.CountXValuesChartOnClickStart = 0;
return;
}
if (myPosition.ValueXMouseOnClickStart == 0)
{
myPosition.ValueXMouseOnClickStart = e.X;
if (double.IsNaN(_chart.ChartAreas[0].AxisY.ScaleView.Size))
{
int max = _volume.VolumeClusters.Count;
myPosition.CountXValuesChartOnClickStart = max;
}
else
{
myPosition.CountXValuesChartOnClickStart = (int)_chart.ChartAreas[0].AxisY.ScaleView.Size;
}
return;
}
double persentMove = Math.Abs(myPosition.ValueXMouseOnClickStart - e.X) / _host.Child.Width;
if (double.IsInfinity(persentMove) ||
persentMove == 0)
{
return;
}
//double concateValue = 100*persentMove*5;
int maxSize = _volume.VolumeClusters.Count;
if (myPosition.ValueXMouseOnClickStart < e.X)
{
if (myPosition.Area.Position.Height < 10)
{
return;
}
double newVal = myPosition.CountXValuesChartOnClickStart +
myPosition.CountXValuesChartOnClickStart * persentMove * 3;
if (newVal > maxSize)
{
_chart.ChartAreas[0].AxisY.ScaleView.Size = Double.NaN;
}
else
{
if (newVal + _chart.ChartAreas[0].AxisY.ScaleView.Position > maxSize)
{
_chart.ChartAreas[0].AxisY.ScaleView.Position = maxSize - newVal;
}
_chart.ChartAreas[0].AxisY.ScaleView.Size = newVal;
//RePaintRightLebels();
if (_chart.ChartAreas[0].AxisY.ScaleView.Position + newVal > maxSize)
{
_chart.ChartAreas[0].AxisY.ScaleView.Position = maxSize - newVal;
}
}
}
else if (myPosition.ValueXMouseOnClickStart > e.X)
{
double newVal = myPosition.CountXValuesChartOnClickStart -
myPosition.CountXValuesChartOnClickStart * persentMove * 3;
if (newVal < 5)
{
_chart.ChartAreas[0].AxisY.ScaleView.Size = 5;
}
else
{
if (!double.IsNaN(_chart.ChartAreas[0].AxisY.ScaleView.Size))
{
_chart.ChartAreas[0].AxisY.ScaleView.Position = _chart.ChartAreas[0].AxisY.ScaleView.Position + _chart.ChartAreas[0].AxisY.ScaleView.Size - newVal;
}
_chart.ChartAreas[0].AxisY.ScaleView.Size = newVal;
if (_chart.ChartAreas[0].AxisY.ScaleView.Position + newVal > maxSize)
{
double newStartPos = maxSize - newVal;
if (newStartPos < 0)
{
newStartPos = 0;
}
_chart.ChartAreas[0].AxisY.ScaleView.Position = newStartPos;
}
}
}
ResizeXAxis();
ResizeYAxis();
}
