/// <summary>
/// Copy Constructor
/// </summary>
/// <param name="a">construct a TradingDateTimeAxis based on this provided axis.</param>
public TradingDateTimeAxis(Axis a)
: base(a)
{
Init();
if (a is TradingDateTimeAxis)
DoClone ((TradingDateTimeAxis)a, this);
else if (a is DateTimeAxis)
DoClone ((DateTimeAxis)a, this);
else {
DoClone (a, this);
this.NumberFormat = null;
}
}
/// <summary>
/// Deep copy of Axis.
/// </summary>
/// <remarks>
/// This method includes a check that guards against derived classes forgetting
/// to implement their own Clone method. If Clone is called on a object derived
/// from Axis, and the Clone method hasn't been overridden by that object, then
/// the test GetType == typeof(Axis) will fail.
/// </remarks>
/// <returns>A copy of the Axis Class</returns>
public virtual object Clone()
{
// ensure that this isn't being called on a derived type. If that is the case
// then the derived type didn't override this method as it should have.
if (GetType() != typeof(Axis)) {
throw new XwPlotException ( "Clone not defined in derived type." );
}
Axis a = new Axis ();
DoClone (this, a);
return a;
}
/// <summary>
/// Helper method for Clone. Does all the copying - can be called by derived
/// types so they don't need to implement this part of the copying themselves.
/// also useful in constructor of derived types that takes Axis class.
/// </summary>
protected static void DoClone(Axis src, Axis dest)
{
dest.Reversed = src.Reversed;
dest.Hidden = src.Hidden;
dest.WorldMax = src.WorldMax;
dest.WorldMin = src.WorldMin;
dest.LineColor = src.LineColor;
dest.TicksCrossAxis = src.TicksCrossAxis;
dest.SmallTickSize = src.SmallTickSize;
dest.LargeTickSize = src.LargeTickSize;
dest.MinPhysicalLargeTickStep = src.MinPhysicalLargeTickStep;
dest.TicksIndependentOfPhysicalExtent = src.TicksIndependentOfPhysicalExtent;
dest.AutoScaleTicks = src.AutoScaleTicks;
dest.TickScale = src.TickScale;
dest.TicksAngle = src.TicksAngle;
dest.HideTickText = src.HideTickText;
dest.TickTextNextToAxis = src.TickTextNextToAxis;
dest.FlipTickText = src.FlipTickText;
dest.AutoScaleText = src.AutoScaleText;
dest.FontScale = src.FontScale;
dest.TickTextColor = src.TickTextColor;
dest.TickTextFont = src.TickTextFont.WithScaledSize (1.0);
dest.TickTextAngle = src.TickTextAngle;
dest.Label = (string)src.Label.Clone();
dest.LabelColor = src.LabelColor;
dest.LabelFont = src.LabelFont.WithScaledSize (1.0);
dest.LabelOffset = src.LabelOffset;
dest.LabelOffsetAbsolute = src.LabelOffsetAbsolute;
dest.LabelOffsetScaled = src.LabelOffsetScaled;
dest.NumberFormat = src.NumberFormat;
}
protected void ClearAxisCache()
{
xAxis1Cache = null;
xAxis2Cache = null;
yAxis1Cache = null;
yAxis2Cache = null;
cached = false;
}
/// <summary>
/// Cache the current axes
/// </summary>
public void CacheAxes()
{
if (!cached) {
if (XAxis1 != null) {
xAxis1Cache = (Axis)XAxis1.Clone();
cached = true;
}
if (XAxis2 != null) {
xAxis2Cache = (Axis)XAxis2.Clone();
cached = true;
}
if (YAxis1 != null) {
yAxis1Cache = (Axis)YAxis1.Clone();
cached = true;
}
if (YAxis2 != null) {
yAxis2Cache = (Axis)YAxis2.Clone();
cached = true;
}
}
}
/// <summary>
/// Copy constructor
/// </summary>
/// <param name="a">The Axis to clone.</param>
/// <remarks>TODO: [review notes] I don't think this will work as desired.</remarks>
public LabelAxis(Axis a)
: base(a)
{
Init ();
}
/// <summary>
/// Copy Constructor
/// </summary>
/// <param name="a">The Axis to clone.</param>
public LogAxis(Axis a)
: base(a)
{
Init();
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="a">Axis to construct from</param>
public DateTimeAxis(Axis a)
: base(a)
{
Init ();
NumberFormat = null;
}
/// <summary>
/// OnButtonReleased method for AxisScale interaction
/// </summary>
public override bool OnButtonReleased(ButtonEventArgs args, PlotCanvas pc)
{
if (dragging) {
dragging = false;
axis = null;
physicalAxis = null;
lastPoint = new Point();
//pc.plotCursor = CursorType.LeftPointer;
}
return false;
}
void Init()
{
drawables = new ArrayList ();
xAxisPositions = new ArrayList ();
yAxisPositions = new ArrayList ();
zPositions = new ArrayList ();
ordering = new SortedList ();
PlotBackColor = Colors.White;
TitleFont = Font.SystemSansSerifFont.WithSize (14);
TitleColor = Colors.Black;
Padding = 10;
Title = "";
Legend = null;
autoScaletitle = false;
autoScaleAutoGeneratedAxes = false;
XAxis1 = null;
XAxis2 = null;
YAxis1 = null;
YAxis2 = null;
pXAxis1Cache = null;
pYAxis1Cache = null;
pXAxis2Cache = null;
pYAxis2Cache = null;
axesConstraints = new ArrayList ();
}
/// <summary>
/// Construct
/// </summary>
/// <param name="a">The axis this is a physical representation of.</param>
/// <param name="physicalMin">the physical position of the world minimum axis value.</param>
/// <param name="physicalMax">the physical position of the world maximum axis value.</param>
public PhysicalAxis(Axis a, Point physicalMin, Point physicalMax)
{
Axis = a;
PhysicalMin = physicalMin;
PhysicalMax = physicalMax;
}
void DeterminePhysicalAxesToDraw(Rectangle bounds,
Axis XAxis1, Axis XAxis2, Axis YAxis1, Axis YAxis2,
out PhysicalAxis pXAxis1, out PhysicalAxis pXAxis2,
out PhysicalAxis pYAxis1, out PhysicalAxis pYAxis2 )
{
Rectangle cb = bounds;
pXAxis1 = new PhysicalAxis (XAxis1,
new Point (cb.Left, cb.Bottom), new Point (cb.Right, cb.Bottom) );
pYAxis1 = new PhysicalAxis (YAxis1,
new Point (cb.Left, cb.Bottom), new Point (cb.Left, cb.Top) );
pXAxis2 = new PhysicalAxis (XAxis2,
new Point (cb.Left, cb.Top), new Point (cb.Right, cb.Top) );
pYAxis2 = new PhysicalAxis (YAxis2,
new Point (cb.Right, cb.Bottom), new Point (cb.Right, cb.Top) );
double bottomIndent = Padding;
if (!pXAxis1.Axis.Hidden) {
// evaluate its bounding box
Rectangle bb = pXAxis1.GetBoundingBox ();
// finally determine its indentation from the bottom
bottomIndent = bottomIndent + bb.Bottom - cb.Bottom;
}
double leftIndent = Padding;
if (!pYAxis1.Axis.Hidden) {
// evaluate its bounding box
Rectangle bb = pYAxis1.GetBoundingBox();
// finally determine its indentation from the left
leftIndent = leftIndent - bb.Left + cb.Left;
}
// determine title size
double scale = DetermineScaleFactor (bounds.Width, bounds.Height);
Font scaled_font;
if (AutoScaleTitle) {
scaled_font = TitleFont.WithScaledSize (scale);
}
else {
scaled_font = TitleFont;
}
Size titleSize;
using (TextLayout layout = new TextLayout ()) {
layout.Font = scaled_font;
layout.Text = Title;
titleSize = layout.GetSize ();
};
double topIndent = Padding;
if (!pXAxis2.Axis.Hidden) {
// evaluate its bounding box
Rectangle bb = pXAxis2.GetBoundingBox();
topIndent = topIndent - bb.Top + cb.Top;
// finally determine its indentation from the top
// correct top indendation to take into account plot title
if (Title != "" ) {
topIndent += titleSize.Height * 1.3;
}
}
double rightIndent = Padding;
if (!pYAxis2.Axis.Hidden) {
// evaluate its bounding box
Rectangle bb = pYAxis2.GetBoundingBox();
// finally determine its indentation from the right
rightIndent += (bb.Right-cb.Right);
}
// now we have all the default calculated positions and we can proceed to
// "move" the axes to their right places
// primary axes (bottom, left)
pXAxis1.PhysicalMin = new Point (cb.Left+leftIndent, cb.Bottom-bottomIndent);
pXAxis1.PhysicalMax = new Point (cb.Right-rightIndent, cb.Bottom-bottomIndent);
pYAxis1.PhysicalMin = new Point (cb.Left+leftIndent, cb.Bottom-bottomIndent);
pYAxis1.PhysicalMax = new Point (cb.Left+leftIndent, cb.Top+topIndent);
// secondary axes (top, right)
pXAxis2.PhysicalMin = new Point (cb.Left+leftIndent, cb.Top+topIndent);
pXAxis2.PhysicalMax = new Point (cb.Right-rightIndent, cb.Top+topIndent);
pYAxis2.PhysicalMin = new Point (cb.Right-rightIndent, cb.Bottom-bottomIndent);
pYAxis2.PhysicalMax = new Point (cb.Right-rightIndent, cb.Top+topIndent);
}
void DetermineAxesToDraw(out Axis xAxis_1, out Axis xAxis_2, out Axis yAxis_1, out Axis yAxis_2)
{
xAxis_1 = XAxis1;
xAxis_2 = XAxis2;
yAxis_1 = YAxis1;
yAxis_2 = YAxis2;
if (XAxis1 == null) {
if (XAxis2 == null) {
throw new XwPlotException ("Error: No X-Axis specified");
}
xAxis_1 = (Axis)XAxis2.Clone ();
xAxis_1.HideTickText = true;
xAxis_1.TicksAngle = -Math.PI / 2;
}
if (XAxis2 == null) {
// don't need to check if XAxis1 == null, as case already handled above.
xAxis_2 = (Axis)XAxis1.Clone ();
xAxis_2.HideTickText = true;
xAxis_2.TicksAngle = Math.PI / 2.0;
}
if (YAxis1 == null) {
if (YAxis2 == null) {
throw new XwPlotException ("Error: No Y-Axis specified");
}
yAxis_1 = (Axis)YAxis2.Clone();
yAxis_1.HideTickText = true;
yAxis_1.TicksAngle = Math.PI / 2.0;
}
if (YAxis2 == null) {
// don't need to check if YAxis1 == null, as case already handled above.
yAxis_2 = (Axis)YAxis1.Clone();
yAxis_2.HideTickText = true;
yAxis_2.TicksAngle = -Math.PI / 2.0;
}
}
void UpdateAxes(bool recalculateAll)
{
if (drawables.Count != xAxisPositions.Count || drawables.Count != yAxisPositions.Count) {
throw new XwPlotException("plots and axis position arrays our of sync");
}
int position = 0;
// if we're not recalculating axes using all iplots then set
// position to last one in list.
if (!recalculateAll) {
position = drawables.Count - 1;
if (position < 0) position = 0;
}
if (recalculateAll) {
XAxis1 = null;
YAxis1 = null;
XAxis2 = null;
YAxis2 = null;
}
for (int i = position; i < drawables.Count; ++i) {
// only update axes if this drawable is an IPlot.
if (!(drawables[i] is IPlot))
continue;
IPlot p = (IPlot)drawables[i];
XAxisPosition xap = (XAxisPosition)xAxisPositions[i];
YAxisPosition yap = (YAxisPosition)yAxisPositions[i];
if (xap == XAxisPosition.Bottom) {
if (XAxis1 == null) {
XAxis1 = p.SuggestXAxis();
if (XAxis1 != null) {
XAxis1.TicksAngle = -Math.PI / 2.0;
}
}
else {
XAxis1.LUB(p.SuggestXAxis());
}
if (XAxis1 != null) {
XAxis1.MinPhysicalLargeTickStep = 50;
if (AutoScaleAutoGeneratedAxes) {
XAxis1.AutoScaleText = true;
XAxis1.AutoScaleTicks = true;
XAxis1.TicksIndependentOfPhysicalExtent = true;
}
else {
XAxis1.AutoScaleText = false;
XAxis1.AutoScaleTicks = false;
XAxis1.TicksIndependentOfPhysicalExtent = false;
}
}
}
if (xap == XAxisPosition.Top) {
if (XAxis2 == null) {
XAxis2 = p.SuggestXAxis();
if (XAxis2 != null) {
XAxis2.TicksAngle = Math.PI / 2.0;
}
}
else {
XAxis2.LUB(p.SuggestXAxis());
}
if (XAxis2 != null) {
XAxis2.MinPhysicalLargeTickStep = 50;
if (AutoScaleAutoGeneratedAxes) {
XAxis2.AutoScaleText = true;
XAxis2.AutoScaleTicks = true;
XAxis2.TicksIndependentOfPhysicalExtent = true;
}
else {
XAxis2.AutoScaleText = false;
XAxis2.AutoScaleTicks = false;
XAxis2.TicksIndependentOfPhysicalExtent = false;
}
}
}
if (yap == YAxisPosition.Left) {
if (YAxis1 == null) {
YAxis1 = p.SuggestYAxis();
if (YAxis1 != null) {
YAxis1.TicksAngle = Math.PI / 2.0;
}
}
else {
YAxis1.LUB(p.SuggestYAxis());
}
if (YAxis1 != null) {
if (AutoScaleAutoGeneratedAxes) {
YAxis1.AutoScaleText = true;
YAxis1.AutoScaleTicks = true;
YAxis1.TicksIndependentOfPhysicalExtent = true;
}
else {
YAxis1.AutoScaleText = false;
YAxis1.AutoScaleTicks = false;
YAxis1.TicksIndependentOfPhysicalExtent = false;
}
}
}
if (yap == YAxisPosition.Right) {
if (YAxis2 == null) {
YAxis2 = p.SuggestYAxis();
if (YAxis2 != null) {
YAxis2.TicksAngle = -Math.PI / 2.0;
}
}
else {
YAxis2.LUB(p.SuggestYAxis());
}
if (YAxis2 != null) {
if (AutoScaleAutoGeneratedAxes) {
YAxis2.AutoScaleText = true;
YAxis2.AutoScaleTicks = true;
YAxis2.TicksIndependentOfPhysicalExtent = true;
}
else {
YAxis2.AutoScaleText = false;
YAxis2.AutoScaleTicks = false;
YAxis2.TicksIndependentOfPhysicalExtent = false;
}
}
}
}
}
/// <summary>
/// Sets the world extent of the current axis to be just large enough (Least Upper Bound) to
/// encompass the current world extent of the axis, and the extent of the specified axis
/// </summary>
/// <param name="a">The other Axis instance.</param>
public void LUB(Axis a)
{
if (a == null) {
return;
}
// minima
if (!double.IsNaN(a.WorldMin)) {
if (double.IsNaN(WorldMin)) {
WorldMin = a.WorldMin;
}
else {
if (a.WorldMin < WorldMin) {
WorldMin = a.WorldMin;
}
}
}
// maxima
if (!double.IsNaN(a.WorldMax)) {
if (double.IsNaN(WorldMax)) {
WorldMax = a.WorldMax;
}
else {
if (a.WorldMax > WorldMax) {
WorldMax = a.WorldMax;
}
}
}
}
/// <summary>
/// OnButtonPressed method for AxisScale interaction
/// </summary>
public override bool OnButtonPressed(ButtonEventArgs args, PlotCanvas pc)
{
// 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 scaling
if (pc.PlotAreaBoundingBoxCache.Contains(args.X, args.Y)) {
return false;
}
if (args.Button == PointerButton.Left) {
// see if hit with axis. NB Only one axis object will be returned
ArrayList objects = pc.HitTest (new Point(args.X, args.Y));
foreach (object o in objects) {
if (o is Axis) {
dragging = true;
axis = (Axis)o;
if (pc.PhysicalXAxis1Cache.Axis == axis) {
physicalAxis = pc.PhysicalXAxis1Cache;
//pc.plotCursor = CursorType.LeftRight;
}
else if (pc.PhysicalXAxis2Cache.Axis == axis) {
physicalAxis = pc.PhysicalXAxis2Cache;
//ps.plotCursor = CursorType.LeftRight;
}
else if (pc.PhysicalYAxis1Cache.Axis == axis) {
physicalAxis = pc.PhysicalYAxis1Cache;
//pc.plotCursor = CursorType.UpDown;
}
else if (pc.PhysicalYAxis2Cache.Axis == axis) {
physicalAxis = pc.PhysicalYAxis2Cache;
//pc.plotCursor = CursorType.UpDown;
}
startPoint = new Point (args.X, args.Y);
lastPoint = startPoint;
// evaluate focusRatio about which axis is expanded
double x = startPoint.X - physicalAxis.PhysicalMin.X;
double y = startPoint.Y - physicalAxis.PhysicalMin.Y;
double r = Math.Sqrt(x*x + y*y);
focusRatio = r/physicalAxis.PhysicalLength;
return false;
}
}
}
return false;
}
/// <summary>
/// Copy constructor.
/// </summary>
/// <param name="src">The Axis to clone.</param>
public Axis(Axis src )
{
Axis.DoClone (src, this);
}
/// <summary>
/// Copy constructor
/// </summary>
/// <param name="a">The Axis to clone</param>
public LinearAxis(Axis a)
: base(a)
{
Init();
}