private void XYPlotCtrl_MouseDown(object sender, MouseEventArgs e)
{
PlotViewMouseMode mouseMode = MouseMode;
if (Control.ModifierKeys == Keys.Shift)
{
mouseMode = PlotViewMouseMode.Zoom;
}
else if (Control.ModifierKeys == Keys.Control)
{
mouseMode = PlotViewMouseMode.Pan;
}
if (e.Button == MouseButtons.Left)
{
PtMouseStart = e.Location;
PtMouseEnd = PtMouseStart;
switch (mouseMode)
{
case PlotViewMouseMode.None:
DrawReversibleCrossLines(PtMouseStart);
break;
default:
break;
}
}
else
{
PtMouseStart = e.Location;
}
}
private void XYPlotCtrl_MouseMove(object sender, MouseEventArgs e)
{
Point ptCurrent = e.Location;
if (ptCurrent == PtMouseStart)
{
return;
}
//if (Math.Abs(ptCurrent.X - PtMouseStart.X) <= 2 &&
// Math.Abs(ptCurrent.Y - PtMouseStart.Y) <= 2) return;
PlotViewMouseMode mouseMode = MouseMode;
if (Control.ModifierKeys == Keys.Shift)
{
mouseMode = PlotViewMouseMode.Zoom;
}
else if (Control.ModifierKeys == Keys.Control)
{
mouseMode = PlotViewMouseMode.Pan;
}
// Check if the left mouse button is pressed.
if (e.Button == MouseButtons.Left)
{
switch (mouseMode)
{
case PlotViewMouseMode.Zoom:
// erase previous rectangle
DrawReversibleRectangle(PtMouseStart, PtMouseEnd);
// draw new rectangle
DrawReversibleRectangle(PtMouseStart, ptCurrent);
break;
case PlotViewMouseMode.Pan:
// erase previous rectangle
//DrawReversibleRectangle(PtMouseStart, PtMouseEnd);
DrawReversibleLine(PtMouseStart, PtMouseEnd);
// draw new rectangle
//DrawReversibleRectangle(PtMouseStart, ptCurrent);
DrawReversibleLine(PtMouseStart, ptCurrent);
break;
case PlotViewMouseMode.Select:
// erase previous rectangle
DrawReversibleRectangle(PtMouseStart, PtMouseEnd);
// draw new rectangle
DrawReversibleRectangle(PtMouseStart, ptCurrent);
break;
case PlotViewMouseMode.None:
XYPlot xyPlot = GetXYPlot(PtMouseStart);
if (xyPlot != null)
{
// erase previous cross lines
DrawReversibleCrossLines(PtMouseEnd);
// draw new cross lines
DrawReversibleCrossLines(ptCurrent);
}
break;
default:
break;
}
}
PtMouseEnd = ptCurrent;
}
private void XYPlotCtrl_MouseUp(object sender, MouseEventArgs e)
{
//using (new WaitCursor())
{
PlotViewMouseMode mouseMode = MouseMode;
if (Control.ModifierKeys == Keys.Shift)
{
mouseMode = PlotViewMouseMode.Zoom;
}
else if (Control.ModifierKeys == Keys.Control)
{
mouseMode = PlotViewMouseMode.Pan;
}
if (e.Button == MouseButtons.Left)
{
PtMouseEnd = e.Location;
XYPlot xyPlot = GetXYPlot(PtMouseStart);
if (xyPlot != null)
{
switch (mouseMode)
{
case PlotViewMouseMode.Zoom:
if (PtMouseStart != Point.Empty)
{
xyPlot.Zoom(PtMouseStart, PtMouseEnd);
DrawReversibleRectangle(PtMouseStart, PtMouseEnd);
this.Invalidate();
}
break;
case PlotViewMouseMode.Pan:
if (PtMouseStart != Point.Empty)
{
xyPlot.Pan(PtMouseStart, PtMouseEnd);
//DrawReversibleRectangle(PtMouseStart, PtMouseEnd);
DrawReversibleLine(PtMouseStart, PtMouseEnd);
this.Invalidate();
}
break;
//case PlotViewMouseMode.Select:
// Select(xyPlot, PtMouseStart, PtMouseEnd);
// DrawReversibleRectangle(PtMouseStart, PtMouseEnd);
// this.Invalidate();
// break;
case PlotViewMouseMode.None:
DrawReversibleCrossLines(PtMouseEnd);
break;
default:
break;
}
}
PtMouseStart = Point.Empty;
PtMouseEnd = Point.Empty;
}
}
}
