/// <summary>
/// MouseUp method for AxisDrag interaction
/// </summary>
/// <param name="X">mouse X position</param>
/// <param name="Y"> mouse Y position</param>
/// <param name="keys"> mouse and keyboard modifiers</param>
/// <param name="ps">the InteractivePlotSurface2D</param>
public override bool DoMouseUp( int X, int Y, Modifier keys, InteractivePlotSurface2D ps )
{
if (dragging_) {
dragging_ = false;
axis_ = null;
physicalAxis_ = null;
lastPoint_ = new Point();
ps.plotCursor = CursorType.LeftPointer;
}
return false;
}
/// <summary>
/// MouseDown method for AxisDrag interaction
/// </summary>
/// <param name="X">mouse X position</param>
/// <param name="Y">mouse Y position</param>
/// <param name="keys">mouse and keyboard modifiers</param>
/// <param name="ps">the InteractivePlotSurface2D</param>
public override bool DoMouseDown(int X, int Y, Modifier keys, InteractivePlotSurface2D ps)
{
// if the mouse is inside the plot area [the tick marks may be here,
// and are counted as part of the axis], then don't invoke drag.
if (ps.PlotAreaBoundingBoxCache.Contains(X,Y)) {
return false;
}
if ((keys & Modifier.Button1) != 0) {
// see if hit with axis. NB Only one axis object will be returned
ArrayList objects = ps.HitTest(new Point(X, Y));
foreach (object o in objects) {
if (o is NPlot.Axis) {
dragging_ = true;
axis_ = (Axis)o;
if (ps.PhysicalXAxis1Cache.Axis == axis_) {
physicalAxis_ = ps.PhysicalXAxis1Cache;
ps.plotCursor = CursorType.LeftRight;
}
else if (ps.PhysicalXAxis2Cache.Axis == axis_) {
physicalAxis_ = ps.PhysicalXAxis2Cache;
ps.plotCursor = CursorType.LeftRight;
}
else if (ps.PhysicalYAxis1Cache.Axis == axis_) {
physicalAxis_ = ps.PhysicalYAxis1Cache;
ps.plotCursor = CursorType.UpDown;
}
else if (ps.PhysicalYAxis2Cache.Axis == axis_) {
physicalAxis_ = ps.PhysicalYAxis2Cache;
ps.plotCursor = CursorType.UpDown;
}
startPoint_ = new Point(X, Y); // don't combine these - Mono
lastPoint_ = startPoint_; // bug #475205 prior to 2.4
// evaluate focusRatio about which axis is expanded
float x = startPoint_.X - physicalAxis_.PhysicalMin.X;
float y = startPoint_.Y - physicalAxis_.PhysicalMin.Y;
double r = Math.Sqrt(x*x + y*y);
focusRatio_ = r/physicalAxis_.PhysicalLength;
return false;
}
}
}
return false;
}