/// <summary>
/// MouseMove method for Guideline
/// </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 DoMouseMove(int X, int Y, Modifier keys, InteractivePlotSurface2D ps)
{
Rectangle plotArea = ps.PlotAreaBoundingBoxCache;
if (drawPending)
{
overRuns += 1;
return(false);
}
// note previous guideline ready to erase it
Rectangle prevExtent = lineExtent;
// Only display guideline when mouse is within the plotArea
if (plotArea.Contains(X, Y))
{
int h = 1;
int w = plotArea.Right - plotArea.Left + 1;
lineExtent = new Rectangle(plotArea.X, Y, w, h);
drawPending = true;
}
else
{
lineExtent = Rectangle.Empty;
}
ps.QueueDraw(prevExtent);
ps.QueueDraw(lineExtent);
return(false);
}
/// <summary>
/// MouseLeave method for RubberBand selection
/// </summary>
/// <param name="ps">the InteractivePlotSurface2D</param>
public override bool DoMouseLeave(InteractivePlotSurface2D ps)
{
if (selectionActive)
{
ps.QueueDraw(selection);
selectionActive = false;
}
return(false);
}
/// <summary>
/// MouseLeave method for Guideline
/// </summary>
/// <param name="ps">the InteractivePlotSurface2D</param>
public override bool DoMouseLeave(InteractivePlotSurface2D ps)
{
if (lineExtent != Rectangle.Empty)
{
// erase previous vertical guideline
ps.QueueDraw(lineExtent);
}
lineExtent = Rectangle.Empty;
return(false);
}
/// <summary>
/// Mouse Scroll (wheel) method for AxisZoom interaction
/// </summary>
public override bool DoMouseScroll(int X, int Y, int direction, Modifier keys, InteractivePlotSurface2D ps)
{
// Add timeout into Gtk loop when scroll starts - Omit for now
// GLib.Timeout.Add (500, new GLib.TimeoutHandler (zoomTimeout) );
zoomActive = true;
surface = ps;
double proportion = 0.1 * sensitivity_; // use initial zoom of 10%
double focusX = 0.5, focusY = 0.5; // default focus point
// Zoom direction is +1 for Up/ZoomIn, or -1 for Down/ZoomOut
proportion *= -direction;
// delete previous focusPoint drawing - this is all a bit 'tentative'
ps.QueueDraw(focusRect);
Rectangle area = ps.PlotAreaBoundingBoxCache;
if (area.Contains(X, Y))
{
p.X = X;
p.Y = Y;
focusX = (double)(X - area.Left) / (double)area.Width;
focusY = (double)(area.Bottom - Y) / (double)area.Height;
}
// Zoom in/out for all defined axes
ps.CacheAxes();
ps.ZoomXAxes(proportion, focusX);
ps.ZoomYAxes(proportion, focusY);
// Note: r = 16, and Focus extents range from x-2*r-1 to x+2*r+1, y-2*r-1 to y+2*r+1
int x = p.X - 31;
int y = p.Y - 31;
focusRect = new Rectangle(x, y, 64, 64);
// draw new focusRect
ps.QueueDraw(focusRect);
return(true);
}
/// <summary>
/// Callback for zoom timeout - compiled but not active at present
/// </summary>
private bool zoomTimeout()
{
// clear zoom flag and remove last focusPoint
zoomActive = false;
surface.QueueDraw(focusRect);
//returning true means that the timeout routine should be invoked
//again after the timeout period expires. Returning false will
//terminate the timeout (ie until invoked again by Scrolling)
return(false);
}
/// <summary>
/// MouseMove method for Rubberband selection of plot area
/// </summary>
public override bool DoMouseMove(int X, int Y, Modifier keys, InteractivePlotSurface2D ps)
{
if (((keys & Modifier.Button1) != 0) && selectionActive)
{
// note last selection rectangle
Rectangle lastSelection = selection;
Rectangle bounds = ps.PlotAreaBoundingBoxCache;
// clip selection rectangle to PlotArea
X = Math.Max(X, bounds.Left);
X = Math.Min(X, bounds.Right);
Y = Math.Max(Y, bounds.Top);
Y = Math.Min(Y, bounds.Bottom);
endPoint.X = X;
endPoint.Y = Y;
selection = FromPoints(startPoint, endPoint);
ps.QueueDraw(lastSelection);
//Console.WriteLine ("Erase: {0} {1} {2} {3} ", lastSelection.X, lastSelection.Y, lastSelection.Width, lastSelection.Height);
ps.QueueDraw(selection);
}
return(false);
}
/// <summary>
/// MouseUp method for RubberBand selection
/// </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)
{
bool modified = false;
// delete previous overlay rectangle
ps.QueueDraw(selection);
if (selectionActive)
{
selectionActive = false;
Rectangle bounds = ps.PlotAreaBoundingBoxCache;
if (!bounds.Contains(endPoint))
{
// MouseUp outside plotArea - cancel selection
modified = false;
}
else
{
ps.CacheAxes();
// Redefine range based on selection. The proportions for
// Min and Max do not require Min < Max, since they will
// be re-ordered by Axis.DefineRange if necessary
double xMin = startPoint.X - bounds.Left;
double yMin = bounds.Bottom - startPoint.Y;
double xMax = endPoint.X - bounds.Left;
double yMax = bounds.Bottom - endPoint.Y;
double xMinProp = xMin / bounds.Width;
double xMaxProp = xMax / bounds.Width;
double yMinProp = yMin / bounds.Height;
double yMaxProp = yMax / bounds.Height;
ps.DefineXAxes(xMinProp, xMaxProp);
ps.DefineYAxes(yMinProp, yMaxProp);
modified = true;
}
}
return(modified);
}
/// <summary>
/// MouseMove method for PlotScroll
/// </summary>
public override bool DoMouseMove(int X, int Y, Modifier keys, InteractivePlotSurface2D ps)
{
zoomActive = false;
ps.QueueDraw(focusRect);
return(false);
}
/// <summary>
/// MouseMove method for Guideline
/// </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 DoMouseMove(int X, int Y, Modifier keys, InteractivePlotSurface2D ps)
{
Rectangle plotArea = ps.PlotAreaBoundingBoxCache;
if (drawPending)
{
overRuns += 1;
return false;
}
// note previous guideline ready to erase it
Rectangle prevExtent = lineExtent;
// Only display guideline when mouse is within the plotArea
if (plotArea.Contains(X, Y))
{
int w = 1;
int h = plotArea.Bottom - plotArea.Top + 1;
lineExtent = new Rectangle(X, plotArea.Top, w, h);
drawPending = true;
}
else
{
lineExtent = Rectangle.Empty;
}
ps.QueueDraw(prevExtent);
ps.QueueDraw(lineExtent);
return false;
}
/// <summary>
/// MouseLeave method for Guideline
/// </summary>
/// <param name="ps">the InteractivePlotSurface2D</param>
public override bool DoMouseLeave(InteractivePlotSurface2D ps)
{
if (lineExtent != Rectangle.Empty)
{
// erase previous vertical guideline
ps.QueueDraw(lineExtent);
}
lineExtent = Rectangle.Empty;
return false;
}
/// <summary>
/// MouseUp method for RubberBand selection
/// </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)
{
bool modified = false;
// delete previous overlay rectangle
ps.QueueDraw(selection);
if (selectionActive)
{
selectionActive = false;
Rectangle bounds = ps.PlotAreaBoundingBoxCache;
if (!bounds.Contains(endPoint))
{
// MouseUp outside plotArea - cancel selection
modified = false;
}
else
{
ps.CacheAxes();
// Redefine range based on selection. The proportions for
// Min and Max do not require Min < Max, since they will
// be re-ordered by Axis.DefineRange if necessary
double xMin = startPoint.X - bounds.Left;
double yMin = bounds.Bottom - startPoint.Y;
double xMax = endPoint.X - bounds.Left;
double yMax = bounds.Bottom - endPoint.Y;
double xMinProp = xMin / bounds.Width;
double xMaxProp = xMax / bounds.Width;
double yMinProp = yMin / bounds.Height;
double yMaxProp = yMax / bounds.Height;
ps.DefineXAxes(xMinProp, xMaxProp);
ps.DefineYAxes(yMinProp, yMaxProp);
modified = true;
}
}
return modified;
}
/// <summary>
/// MouseMove method for Rubberband selection of plot area
/// </summary>
public override bool DoMouseMove(int X, int Y, Modifier keys, InteractivePlotSurface2D ps)
{
if (((keys & Modifier.Button1) != 0) && selectionActive)
{
// note last selection rectangle
Rectangle lastSelection = selection;
Rectangle bounds = ps.PlotAreaBoundingBoxCache;
// clip selection rectangle to PlotArea
X = Math.Max(X, bounds.Left);
X = Math.Min(X, bounds.Right);
Y = Math.Max(Y, bounds.Top);
Y = Math.Min(Y, bounds.Bottom);
endPoint.X = X;
endPoint.Y = Y;
selection = FromPoints(startPoint, endPoint);
ps.QueueDraw(lastSelection);
//Console.WriteLine ("Erase: {0} {1} {2} {3} ", lastSelection.X, lastSelection.Y, lastSelection.Width, lastSelection.Height);
ps.QueueDraw(selection);
}
return false;
}
/// <summary>
/// MouseLeave method for RubberBand selection
/// </summary>
/// <param name="ps">the InteractivePlotSurface2D</param>
public override bool DoMouseLeave(InteractivePlotSurface2D ps)
{
if (selectionActive)
{
ps.QueueDraw(selection);
selectionActive = false;
}
return false;
}
/// <summary>
/// MouseMove method for PlotScroll
/// </summary>
public override bool DoMouseMove(int X, int Y, Modifier keys, InteractivePlotSurface2D ps)
{
zoomActive = false;
ps.QueueDraw(focusRect);
return false;
}
/// <summary>
/// Mouse Scroll (wheel) method for AxisZoom interaction
/// </summary>
public override bool DoMouseScroll(int X, int Y, int direction, Modifier keys, InteractivePlotSurface2D ps)
{
// Add timeout into Gtk loop when scroll starts - Omit for now
// GLib.Timeout.Add (500, new GLib.TimeoutHandler (zoomTimeout) );
zoomActive = true;
surface = ps;
double proportion = 0.1 * sensitivity_; // use initial zoom of 10%
double focusX = 0.5, focusY = 0.5; // default focus point
// Zoom direction is +1 for Up/ZoomIn, or -1 for Down/ZoomOut
proportion *= -direction;
// delete previous focusPoint drawing - this is all a bit 'tentative'
ps.QueueDraw(focusRect);
Rectangle area = ps.PlotAreaBoundingBoxCache;
if (area.Contains(X, Y))
{
p.X = X;
p.Y = Y;
focusX = (double)(X - area.Left) / (double)area.Width;
focusY = (double)(area.Bottom - Y) / (double)area.Height;
}
// Zoom in/out for all defined axes
ps.CacheAxes();
ps.ZoomXAxes(proportion, focusX);
ps.ZoomYAxes(proportion, focusY);
// Note: r = 16, and Focus extents range from x-2*r-1 to x+2*r+1, y-2*r-1 to y+2*r+1
int x = p.X - 31;
int y = p.Y - 31;
focusRect = new Rectangle(x, y, 64, 64);
// draw new focusRect
ps.QueueDraw(focusRect);
return (true);
}
