public void MouseWheel(object sender, MouseEventArgs e)
{
float fNewStart;
float fNewEnd;
float fDiff;
//_form.bUserMovingGraph = true; // Stop graph sliding from timer
fNewStart = Projection.XMin;
fNewEnd = Projection.XMax;
fDiff = (fNewEnd - fNewStart) / 10; // zopm with 10%
if (e.Delta < 0) // Zoom in
{
fNewStart -= fDiff;
fNewEnd += fDiff;
}
else // Zoom out
{
fNewStart += fDiff;
fNewEnd -= fDiff;
}
float nPermitedMin = float.MaxValue;
float nPermitedMax = float.MinValue;
foreach (Graph source in _graphList) // find start and end "X" for all graphs
{
if (source.Length > 0)
{
if (nPermitedMin > source.Samples[0].X)
{
nPermitedMin = source.Samples[0].X;
}
if (nPermitedMax < source.Samples[source.Length - 1].X)
{
nPermitedMax = source.Samples[source.Length - 1].X;
}
}
}
if (fNewStart < nPermitedMin) // Prevent zooming out of min/max
{
fNewStart = nPermitedMin;
}
if (fNewEnd > nPermitedMax)
{
fNewEnd = nPermitedMax;
}
if (fNewStart < fNewEnd)
{
Projection.setRangeX(fNewStart, fNewEnd);
}
}
public void Zoom_X(bool bIn, int graphWidth)
{
// int graphWidth = ((PictureBox)sender).Width;
Point screenPoint = Cursor.Position;
Point graphPoint = _pictureBox.PointToClient(screenPoint);
// TODO: min/max X should be found when adding points to graphs. Change "GetMinimuxX()";
float graphicMinX = _graphList[0].GetFirstPoint().X; // GetMinimumX();
float graphicMaxX = _graphList[0].GetLastPoint().X; //GetMaximumX();
float graphicRangeX = graphicMaxX - graphicMinX;
float fZoomingPointProportion = ((float)graphPoint.X) / graphWidth;
float fZoomingPoint_real = Projection.XMin + (Projection.XRange * fZoomingPointProportion);
float newRange;
if (bIn)
{
newRange = Projection.XRange / 2;
}
else
{
newRange = Projection.XRange * 2;
}
float fNewX_start = fZoomingPoint_real - fZoomingPointProportion * newRange;
float fNewX_end = fNewX_start + newRange;
if (fNewX_start < graphicMinX)
{
fNewX_start = graphicMinX;
}
if (fNewX_end > graphicMaxX)
{
fNewX_end = graphicMaxX;
}
Projection.setRangeX(fNewX_start, fNewX_end);
Refresh();
_form.positionPanel_Refresh();
}
public GraphPainter(PictureBox pictureBox, MainForm form)
{
_form = form;
_pictureBox = pictureBox;
graphWidth = pictureBox.Width;
graphHeight = pictureBox.Height - ScalePixelWidth;
_bitmapGraph = new Bitmap(pictureBox.Width, pictureBox.Height);
_graphicsPictureBox = Graphics.FromImage(_bitmapGraph);
_pictureBox.Image = _bitmapGraph;
Projection.SetSize(graphWidth, graphHeight);
clearRange();
Projection.setRangeX(10, 60);
SetXAxisGridFontColor(Color.Gray);
SetXAxisGridColor(Color.Blue);
}
public void SetRangeX(float xMin, float xMax)
{
Projection.setRangeX(xMin, xMax); // Common x-axis for all graphs
paintAll(_graphicsPictureBox);
}
public void MouseWheel(object sender, MouseEventArgs e)
{
Point screenPoint = Cursor.Position;
Point graphPoint = _pictureBox.PointToClient(screenPoint);
float fZoomingPoint_real;
float newRange;
if ((Control.ModifierKeys & Keys.Control) == Keys.Control)
{
zoom_Y(sender, e);
return;
}
else if ((Control.ModifierKeys & Keys.Alt) == Keys.Alt)
{
float fMax = _graphList[1].projection.YMax;
float fMin = _graphList[1].projection.YMin;
int graphHeight = ((PictureBox)sender).Height;
Point relatMousePoint = _pictureBox.PointToClient(screenPoint);
float fZoomingCoef = ((float)relatMousePoint.Y) / graphHeight; // Projection.Height;
fZoomingPoint_real = fMax - (_graphList[1].projection.YRange * fZoomingCoef);
if (e.Delta > 0)
{
newRange = _graphList[1].projection.YRange / 1.2f;
}
else
{
newRange = _graphList[1].projection.YRange * 1.2f;
}
float fNewY_end = fZoomingPoint_real + fZoomingCoef * newRange;
float fNewY_start = fNewY_end - newRange;
/*
* if (fNewY_start < graphicMinX)
* fNewY_start = graphicMinX;
*
* if (fNewY_end > graphicMaxX)
* fNewY_end = graphicMaxX;
*/
_graphList[1].projection.SetY_Limit(fNewY_start, fNewY_end);
Refresh();
_form.positionPanel_Refresh();
return;
}
int graphWidth = ((PictureBox)sender).Width;
// TODO: min/max X should be found when adding points to graphs. Change "GetMinimuxX()";
float graphicMinX = _graphList[0].GetFirstPoint().X; // GetMinimumX();
float graphicMaxX = _graphList[0].GetLastPoint().X; //GetMaximumX();
float graphicRangeX = graphicMaxX - graphicMinX;
float fZoomingPointProportion = ((float)graphPoint.X) / graphWidth;
fZoomingPoint_real = Projection.XMin + (Projection.XRange * fZoomingPointProportion);
if (e.Delta > 0)
{
newRange = Projection.XRange / 2;
}
else
{
newRange = Projection.XRange * 2;
}
float fNewX_start = fZoomingPoint_real - fZoomingPointProportion * newRange;
float fNewX_end = fNewX_start + newRange;
if (fNewX_start < graphicMinX)
{
fNewX_start = graphicMinX;
}
if (fNewX_end > graphicMaxX)
{
fNewX_end = graphicMaxX;
}
Projection.setRangeX(fNewX_start, fNewX_end);
Refresh();
_form.positionPanel_Refresh();
}