private void GraphCtrl_MouseMove(object sender, MouseEventArgs e)
{
switch (zoomOption)
{
case eZoomOption.None:
case eZoomOption.ZoomOut:
case eZoomOption.AutoScale:
break;
case eZoomOption.ZoomIn:
{
if (e.Button != MouseButtons.Left)
{
break;
}
Refresh();
Graphics graphics = base.CreateGraphics();
Point point = new Point();
Point point2 = new Point();
point.X = (mousePos.X < e.X) ? mousePos.X : e.X;
point2.X = (mousePos.X >= e.X) ? mousePos.X : e.X;
point.Y = (mousePos.Y < e.Y) ? mousePos.Y : e.Y;
point2.Y = (mousePos.Y >= e.Y) ? mousePos.Y : e.Y;
Rectangle rect = new Rectangle(point.X, point.Y, point2.X - point.X, point2.Y - point.Y);
Rectangle rectangle2 = new Rectangle(point.X, point.Y, (point2.X - point.X) + 1, (point2.Y - point.Y) + 1);
graphics.SetClip(rectangle2);
Pen pen = new Pen(Color.Gray);
pen.DashStyle = DashStyle.Dot;
graphics.DrawRectangle(pen, rect);
return;
}
case eZoomOption.Hand:
if (e.Button == MouseButtons.Left)
{
GraphFrame frame = new GraphFrame();
workingArea = GraphWindow;
frame.Left = frameZoom.Left - ((frameZoom.Width * (e.X - mousePos.X)) / workingArea.Width);
frame.Right = frameZoom.Right - ((frameZoom.Width * (e.X - mousePos.X)) / workingArea.Width);
frame.Top = frameZoom.Top - ((frameZoom.Height * (mousePos.Y - e.Y)) / workingArea.Height);
frame.Bottom = frameZoom.Bottom - ((frameZoom.Height * (mousePos.Y - e.Y)) / workingArea.Height);
if (frame.Left < frameFull.Left)
{
frame.Left = frameFull.Left;
frame.Right = frameFull.Left + frameZoom.Width;
}
if (frame.Right > frameFull.Right)
{
frame.Right = frameFull.Right;
frame.Left = frameFull.Right - frameZoom.Width;
}
if (frame.Top > frameFull.Top)
{
frame.Top = frameFull.Top;
frame.Bottom = frameFull.Top - frameZoom.Height;
}
if (frame.Bottom < frameFull.Bottom)
{
frame.Bottom = frameFull.Bottom;
frame.Top = frameFull.Bottom + frameZoom.Height;
}
FrameZoom = frame;
updateData = true;
}
break;
default:
return;
}
}
private void GraphCtrl_MouseUp(object sender, MouseEventArgs e)
{
switch (zoomOption)
{
case eZoomOption.None:
case eZoomOption.ZoomOut:
case eZoomOption.AutoScale:
case eZoomOption.Hand:
case eZoomOption.FullScale:
return;
case eZoomOption.ZoomIn:
{
if (e.Button != MouseButtons.Left)
{
return;
}
int num = (mousePos.X < e.X) ? mousePos.X : e.X;
int num2 = (mousePos.X >= e.X) ? mousePos.X : e.X;
int num3 = (mousePos.Y < e.Y) ? mousePos.Y : e.Y;
int num4 = (mousePos.Y >= e.Y) ? mousePos.Y : e.Y;
if ((num != num2) && (num3 != num4))
{
GraphFrame frameZoom = new GraphFrame();
GraphFrame frame2 = new GraphFrame();
workingArea = GraphWindow;
frameZoom = FrameZoom;
frame2.Left = frameZoom.Left + ((frameZoom.Width * (num - workingArea.Left)) / workingArea.Width);
frame2.Right = frameZoom.Right - ((frameZoom.Width * (workingArea.Right - num2)) / workingArea.Width);
frame2.Top = frameZoom.Top - ((frameZoom.Height * (num3 - workingArea.Top)) / workingArea.Height);
frame2.Bottom = frameZoom.Bottom + ((frameZoom.Height * (workingArea.Bottom - num4)) / workingArea.Height);
FrameZoom = frame2;
break;
}
FrameZoom = (GraphFrame) (FrameZoom * 0.5f);
break;
}
default:
return;
}
updateData = true;
}
private void GraphCtrl_MouseDown(object sender, MouseEventArgs e)
{
switch (zoomOption)
{
case eZoomOption.None:
case eZoomOption.AutoScale:
case eZoomOption.FullScale:
break;
case eZoomOption.ZoomIn:
if (e.Button != MouseButtons.Left)
{
break;
}
mousePos = e.Location;
return;
case eZoomOption.ZoomOut:
{
if (e.Button != MouseButtons.Left)
{
break;
}
GraphFrame frame = (GraphFrame) (FrameZoom * 1.5f);
FrameZoom = frame;
updateData = true;
return;
}
case eZoomOption.Hand:
if (e.Button == MouseButtons.Left)
{
mousePos = e.Location;
frameZoom = FrameZoom;
}
break;
default:
return;
}
}
