/// <summary>
/// Initializes a new instance of the <see cref="LinearAsOrdinalScale"/> class.
/// Default constructor that defines the owner <see cref="Axis"/>
/// (containing object) for this new object.
/// </summary>
/// <param name="owner">
/// The owner, or containing object, of this instance
/// </param>
public LinearAsOrdinalScale(Axis owner)
: base(owner)
{
}
/// <summary>
/// Initializes a new instance of the <see cref="DateScale"/> class.
/// The Copy Constructor
/// </summary>
/// <param name="rhs">
/// The <see cref="DateScale"/> object from which to copy
/// </param>
/// <param name="owner">
/// The <see cref="Axis"/> object that will own the new instance of <see cref="DateScale"/>
/// </param>
public DateScale(Scale rhs, Axis owner)
: base(rhs, owner)
{
}
/// <summary>
/// The force num tics.
/// </summary>
/// <param name="axis">
/// The axis.
/// </param>
/// <param name="numTics">
/// The num tics.
/// </param>
private void ForceNumTics(Axis axis, int numTics)
{
if (axis._scale.MaxAuto)
{
int nTics = axis._scale.CalcNumTics();
if (nTics < numTics)
{
axis._scale._maxLinearized += axis._scale._majorStep * (numTics - nTics);
}
}
}
/// <summary>
/// Draw the specified single bar (an individual "point") of this series to the specified
/// <see cref="Graphics"/> device. This method is not as efficient as
/// <see cref="DrawBars"/>, which draws the bars for all points. It is intended to be used only for <see cref="BarType.SortedOverlay"/>, which
/// requires special handling of each bar.
/// </summary>
/// <param name="g">
/// A graphic device object to be drawn into. This is normally e.Graphics from the PaintEventArgs argument to the Paint() method.
/// </param>
/// <param name="pane">
/// A reference to the <see cref="GraphPane"/> object that is the parent or owner of this object.
/// </param>
/// <param name="curve">
/// A <see cref="CurveItem"/> object representing the
/// <see cref="Bar"/>'s to be drawn.
/// </param>
/// <param name="baseAxis">
/// The <see cref="Axis"/> class instance that defines the base (independent) axis for the <see cref="Bar"/>
/// </param>
/// <param name="valueAxis">
/// The <see cref="Axis"/> class instance that defines the value (dependent) axis for the <see cref="Bar"/>
/// </param>
/// <param name="pos">
/// The ordinal position of the this bar series (0=first bar, 1=second bar, etc.) in the cluster of bars.
/// </param>
/// <param name="index">
/// The zero-based index number for the single bar to be drawn.
/// </param>
/// <param name="barWidth">
/// The width of each bar, in pixels.
/// </param>
/// <param name="scaleFactor">
/// The scaling factor to be used for rendering objects. This is calculated and passed down by the parent <see cref="GraphPane"/> object using the
/// <see cref="PaneBase.CalcScaleFactor"/> method, and is used to proportionally adjust font sizes, etc. according to the actual size of the graph.
/// </param>
public void DrawSingleBar(
Graphics g,
GraphPane pane,
CurveItem curve,
Axis baseAxis,
Axis valueAxis,
int pos,
int index,
float barWidth,
float scaleFactor)
{
// Make sure that a bar value exists for the current curve and current ordinal position
if (index >= curve.Points.Count)
{
return;
}
// For Overlay and Stack bars, the position is always zero since the bars are on top
// of eachother
if (pane._barSettings.Type == BarType.Overlay || pane._barSettings.Type == BarType.Stack || pane._barSettings.Type == BarType.PercentStack)
{
pos = 0;
}
// Draw the specified bar
this.DrawSingleBar(g, pane, curve, index, pos, baseAxis, valueAxis, barWidth, scaleFactor);
}
/// <summary>
/// Create a new clone of the current item, with a new owner assignment
/// </summary>
/// <param name="owner">
/// The new <see cref="Axis"/> instance that will be the owner of the new Scale
/// </param>
/// <returns>
/// A new <see cref="Scale"/> clone.
/// </returns>
public override Scale Clone(Axis owner)
{
return new DateScale(this, owner);
}
/*
/// <summary>
/// Use the MouseCaptureChanged as an indicator for the start and end of a scrolling operation
/// </summary>
private void ScrollBarMouseCaptureChanged( object sender, EventArgs e )
{
return;
ScrollBar scrollBar = sender as ScrollBar;
if ( scrollBar != null )
{
// If this is the start of a new scroll, then Capture will be true
if ( scrollBar.Capture )
{
// save the original zoomstate
//_zoomState = new ZoomState( this.GraphPane, ZoomState.StateType.Scroll );
ZoomStateSave( this.GraphPane, ZoomState.StateType.Scroll );
}
else
{
// push the prior saved zoomstate, since the scale ranges have already been changed on
// the fly during the scrolling operation
if ( _zoomState != null && _zoomState.IsChanged( this.GraphPane ) )
{
//this.GraphPane.ZoomStack.Push( _zoomState );
ZoomStatePush( this.GraphPane );
// Provide Callback to notify the user of pan events
if ( this.ScrollDoneEvent != null )
this.ScrollDoneEvent( this, scrollBar, _zoomState,
new ZoomState( this.GraphPane, ZoomState.StateType.Scroll ) );
_zoomState = null;
}
}
}
}
*/
/// <summary>
/// The handle scroll.
/// </summary>
/// <param name="axis">
/// The axis.
/// </param>
/// <param name="newValue">
/// The new value.
/// </param>
/// <param name="scrollMin">
/// The scroll min.
/// </param>
/// <param name="scrollMax">
/// The scroll max.
/// </param>
/// <param name="largeChange">
/// The large change.
/// </param>
/// <param name="reverse">
/// The reverse.
/// </param>
private void HandleScroll(Axis axis, int newValue, double scrollMin, double scrollMax, int largeChange, bool reverse)
{
if (axis != null)
{
if (scrollMin > axis._scale._min)
{
scrollMin = axis._scale._min;
}
if (scrollMax < axis._scale._max)
{
scrollMax = axis._scale._max;
}
int span = _ScrollControlSpan - largeChange;
if (span <= 0)
{
return;
}
if (reverse)
{
newValue = span - newValue;
}
Scale scale = axis._scale;
double delta = scale._maxLinearized - scale._minLinearized;
double scrollMin2 = scale.Linearize(scrollMax) - delta;
scrollMin = scale.Linearize(scrollMin);
// scrollMax = scale.Linearize( scrollMax );
double val = scrollMin + newValue / (double)span * (scrollMin2 - scrollMin);
scale._minLinearized = val;
scale._maxLinearized = val + delta;
/*
if ( axis.Scale.IsLog )
{
double ratio = axis._scale._max / axis._scale._min;
double scrollMin2 = scrollMax / ratio;
double val = scrollMin * Math.Exp( (double)newValue / (double)span *
( Math.Logger( scrollMin2 ) - Math.Logger( scrollMin ) ) );
axis._scale._min = val;
axis._scale._max = val * ratio;
}
else
{
double delta = axis._scale._max - axis._scale._min;
double scrollMin2 = scrollMax - delta;
double val = scrollMin + (double)newValue / (double)span *
( scrollMin2 - scrollMin );
axis._scale._min = val;
axis._scale._max = val + delta;
}
*/
this.Invalidate();
}
}
/// <summary>
/// The synchronize.
/// </summary>
/// <param name="source">
/// The source.
/// </param>
/// <param name="dest">
/// The dest.
/// </param>
private void Synchronize(Axis source, Axis dest)
{
dest._scale._min = source._scale._min;
dest._scale._max = source._scale._max;
dest._scale._majorStep = source._scale._majorStep;
dest._scale._minorStep = source._scale._minorStep;
dest._scale._minAuto = source._scale._minAuto;
dest._scale._maxAuto = source._scale._maxAuto;
dest._scale._majorStepAuto = source._scale._majorStepAuto;
dest._scale._minorStepAuto = source._scale._minorStepAuto;
}
/// <summary>
/// Initializes a new instance of the <see cref="Scale"/> class.
/// Basic constructor -- requires that the <see cref="Scale"/> object be intialized with a pre-existing owner <see cref="Axis"/>.
/// </summary>
/// <param name="ownerAxis">
/// The <see cref="Axis"/> object that is the owner of this
/// <see cref="Scale"/> instance.
/// </param>
public Scale(Axis ownerAxis)
{
this._ownerAxis = ownerAxis;
this._min = 0.0;
this._max = 1.0;
this._majorStep = 0.1;
this._minorStep = 0.1;
this._exponent = 1.0;
this._mag = 0;
this._baseTic = PointPairBase.Missing;
this._minGrace = Default.MinGrace;
this._maxGrace = Default.MaxGrace;
this._minAuto = true;
this._maxAuto = true;
this._majorStepAuto = true;
this._minorStepAuto = true;
this._magAuto = true;
this._formatAuto = true;
this._isReverse = Default.IsReverse;
this._isUseTenPower = true;
this._isPreventLabelOverlap = true;
this._isVisible = true;
this._isSkipFirstLabel = false;
this._isSkipLastLabel = false;
this._isSkipCrossLabel = false;
this._majorUnit = DateUnit.Day;
this._minorUnit = DateUnit.Day;
this._format = null;
this._textLabels = null;
this._isLabelsInside = Default.IsLabelsInside;
this._align = Default.Align;
this._alignH = Default.AlignH;
this._fontSpec = new FontSpec(
Default.FontFamily,
Default.FontSize,
Default.FontColor,
Default.FontBold,
Default.FontUnderline,
Default.FontItalic,
Default.FillColor,
Default.FillBrush,
Default.FillType);
this._fontSpec.Border.IsVisible = false;
this._labelGap = Default.LabelGap;
}
/// <summary>
/// Initializes a new instance of the <see cref="Scale"/> class.
/// Copy Constructor. Create a new <see cref="Scale"/> object based on the specified existing one.
/// </summary>
/// <param name="rhs">
/// The <see cref="Scale"/> object to be copied.
/// </param>
/// <param name="owner">
/// The <see cref="Axis"/> object that will own the new instance of <see cref="Scale"/>
/// </param>
public Scale(Scale rhs, Axis owner)
{
this._ownerAxis = owner;
this._min = rhs._min;
this._max = rhs._max;
this._majorStep = rhs._majorStep;
this._minorStep = rhs._minorStep;
this._exponent = rhs._exponent;
this._baseTic = rhs._baseTic;
this._minAuto = rhs._minAuto;
this._maxAuto = rhs._maxAuto;
this._majorStepAuto = rhs._majorStepAuto;
this._minorStepAuto = rhs._minorStepAuto;
this._magAuto = rhs._magAuto;
this._formatAuto = rhs._formatAuto;
this._minGrace = rhs._minGrace;
this._maxGrace = rhs._maxGrace;
this._mag = rhs._mag;
this._isUseTenPower = rhs._isUseTenPower;
this._isReverse = rhs._isReverse;
this._isPreventLabelOverlap = rhs._isPreventLabelOverlap;
this._isVisible = rhs._isVisible;
this._isSkipFirstLabel = rhs._isSkipFirstLabel;
this._isSkipLastLabel = rhs._isSkipLastLabel;
this._isSkipCrossLabel = rhs._isSkipCrossLabel;
this._majorUnit = rhs._majorUnit;
this._minorUnit = rhs._minorUnit;
this._format = rhs._format;
this._isLabelsInside = rhs._isLabelsInside;
this._align = rhs._align;
this._alignH = rhs._alignH;
this._fontSpec = rhs._fontSpec.Clone();
this._labelGap = rhs._labelGap;
if (rhs._textLabels != null)
{
this._textLabels = (string[])rhs._textLabels.Clone();
}
else
{
this._textLabels = null;
}
}
/// <summary>
/// Setup some temporary transform values in preparation for rendering the
/// <see cref="Axis"/>.
/// </summary>
/// <remarks>
/// This method is typically called by the parent <see cref="GraphPane"/>
/// object as part of the <see cref="GraphPane.Draw"/> method. It is also called by <see cref="GraphPane.GeneralTransform(double,double,CoordType)"/>
/// and
/// <see cref="GraphPane.ReverseTransform( PointF, out double, out double )"/>
/// methods to setup for coordinate transformations.
/// </remarks>
/// <param name="pane">
/// A reference to the <see cref="GraphPane"/> object that is the parent or owner of this object.
/// </param>
/// <param name="axis">
/// The parent <see cref="Axis"/> for this <see cref="Scale"/>
/// </param>
public virtual void SetupScaleData(GraphPane pane, Axis axis)
{
// save the ChartRect data for transforming scale values to pixels
if (axis is XAxis || axis is X2Axis)
{
this._minPix = pane.Chart._rect.Left;
this._maxPix = pane.Chart._rect.Right;
}
else
{
this._minPix = pane.Chart._rect.Top;
this._maxPix = pane.Chart._rect.Bottom;
}
this._minLinTemp = this.Linearize(this._min);
this._maxLinTemp = this.Linearize(this._max);
}
/// <summary>
/// Define suitable default ranges for an axis in the event that no data were available
/// </summary>
/// <param name="pane">
/// The <see cref="GraphPane"/> of interest
/// </param>
/// <param name="axis">
/// The <see cref="Axis"/> for which to set the range
/// </param>
internal void SetRange(GraphPane pane, Axis axis)
{
if (this._rangeMin >= double.MaxValue || this._rangeMax <= double.MinValue)
{
// If this is a Y axis, and the main Y axis is valid, use it for defaults
if (axis != pane.XAxis && axis != pane.X2Axis && pane.YAxis.Scale._rangeMin < double.MaxValue
&& pane.YAxis.Scale._rangeMax > double.MinValue)
{
this._rangeMin = pane.YAxis.Scale._rangeMin;
this._rangeMax = pane.YAxis.Scale._rangeMax;
}
// Otherwise, if this is a Y axis, and the main Y2 axis is valid, use it for defaults
else if (axis != pane.XAxis && axis != pane.X2Axis && pane.Y2Axis.Scale._rangeMin < double.MaxValue
&& pane.Y2Axis.Scale._rangeMax > double.MinValue)
{
this._rangeMin = pane.Y2Axis.Scale._rangeMin;
this._rangeMax = pane.Y2Axis.Scale._rangeMax;
}
// Otherwise, just use 0 and 1
else
{
this._rangeMin = 0;
this._rangeMax = 1;
}
}
/*
if ( yMinVal >= Double.MaxValue || yMaxVal <= Double.MinValue )
{
if ( y2MinVal < Double.MaxValue && y2MaxVal > Double.MinValue )
{
yMinVal = y2MinVal;
yMaxVal = y2MaxVal;
}
else
{
yMinVal = 0;
yMaxVal = 0.01;
}
}
if ( y2MinVal >= Double.MaxValue || y2MaxVal <= Double.MinValue )
{
if ( yMinVal < Double.MaxValue && yMaxVal > Double.MinValue )
{
y2MinVal = yMinVal;
y2MaxVal = yMaxVal;
}
else
{
y2MinVal = 0;
y2MaxVal = 1;
}
}
*/
}
/// <summary> /// Create a new clone of the current item, with a new owner assignment /// </summary> /// <param name="owner"> /// The new <see cref="Axis"/> instance that will be the owner of the new Scale /// </param> /// <returns> /// A new <see cref="Scale"/> clone. /// </returns> public abstract Scale Clone(Axis owner);
/// <summary>
/// Draw all the <see cref="JapaneseCandleStick"/>'s to the specified <see cref="Graphics"/>
/// device as a candlestick at each defined point.
/// </summary>
/// <param name="g">
/// A graphic device object to be drawn into. This is normally e.Graphics from the PaintEventArgs argument to the Paint() method.
/// </param>
/// <param name="pane">
/// A reference to the <see cref="GraphPane"/> object that is the parent or owner of this object.
/// </param>
/// <param name="curve">
/// A <see cref="JapaneseCandleStickItem"/> object representing the
/// <see cref="JapaneseCandleStick"/>'s to be drawn.
/// </param>
/// <param name="baseAxis">
/// The <see cref="Axis"/> class instance that defines the base (independent) axis for the <see cref="JapaneseCandleStick"/>
/// </param>
/// <param name="valueAxis">
/// The <see cref="Axis"/> class instance that defines the value (dependent) axis for the <see cref="JapaneseCandleStick"/>
/// </param>
/// <param name="scaleFactor">
/// The scaling factor to be used for rendering objects. This is calculated and passed down by the parent <see cref="GraphPane"/> object using the
/// <see cref="PaneBase.CalcScaleFactor"/> method, and is used to proportionally adjust font sizes, etc. according to the actual size of the graph.
/// </param>
public void Draw(Graphics g, GraphPane pane, JapaneseCandleStickItem curve, Axis baseAxis, Axis valueAxis, float scaleFactor)
{
// ValueHandler valueHandler = new ValueHandler( pane, false );
float pixBase, pixHigh, pixLow, pixOpen, pixClose;
if (curve.Points != null)
{
// float halfSize = _size * scaleFactor;
float halfSize = this.GetBarWidth(pane, baseAxis, scaleFactor);
Color tColor = this._color;
Color tFallingColor = this._fallingColor;
float tPenWidth = this._width;
Fill tRisingFill = this._risingFill;
Fill tFallingFill = this._fallingFill;
Border tRisingBorder = this._risingBorder;
Border tFallingBorder = this._fallingBorder;
if (curve.IsSelected)
{
tColor = Selection.Border.Color;
tFallingColor = Selection.Border.Color;
tPenWidth = Selection.Border.Width;
tRisingFill = Selection.Fill;
tFallingFill = Selection.Fill;
tRisingBorder = Selection.Border;
tFallingBorder = Selection.Border;
}
using (Pen risingPen = new Pen(tColor, tPenWidth))
using (Pen fallingPen = new Pen(tFallingColor, tPenWidth))
{
// Loop over each defined point
for (int i = 0; i < curve.Points.Count; i++)
{
PointPair pt = curve.Points[i];
double date = pt.X;
double high = pt.Y;
double low = pt.Z;
double open = PointPairBase.Missing;
double close = PointPairBase.Missing;
if (pt is StockPt)
{
open = (pt as StockPt).Open;
close = (pt as StockPt).Close;
}
// Any value set to double max is invalid and should be skipped
// This is used for calculated values that are out of range, divide
// by zero, etc.
// Also, any value <= zero on a log scale is invalid
if (!curve.Points[i].IsInvalid3D && (date > 0 || !baseAxis._scale.IsLog) && ((high > 0 && low > 0) || !valueAxis._scale.IsLog))
{
pixBase = (int)(baseAxis.Scale.Transform(curve.IsOverrideOrdinal, i, date) + 0.5);
// pixBase = baseAxis.Scale.Transform( curve.IsOverrideOrdinal, i, date );
pixHigh = valueAxis.Scale.Transform(curve.IsOverrideOrdinal, i, high);
pixLow = valueAxis.Scale.Transform(curve.IsOverrideOrdinal, i, low);
if (PointPairBase.IsValueInvalid(open))
{
pixOpen = float.MaxValue;
}
else
{
pixOpen = valueAxis.Scale.Transform(curve.IsOverrideOrdinal, i, open);
}
if (PointPairBase.IsValueInvalid(close))
{
pixClose = float.MaxValue;
}
else
{
pixClose = valueAxis.Scale.Transform(curve.IsOverrideOrdinal, i, close);
}
if (!curve.IsSelected && this._gradientFill.IsGradientValueType)
{
using (Pen tPen = this.GetPen(pane, scaleFactor, pt))
this.Draw(
g,
pane,
baseAxis is XAxis || baseAxis is X2Axis,
pixBase,
pixHigh,
pixLow,
pixOpen,
pixClose,
halfSize,
scaleFactor,
tPen,
close > open ? tRisingFill : tFallingFill,
close > open ? tRisingBorder : tFallingBorder,
pt);
}
else
{
this.Draw(
g,
pane,
baseAxis is XAxis || baseAxis is X2Axis,
pixBase,
pixHigh,
pixLow,
pixOpen,
pixClose,
halfSize,
scaleFactor,
close > open ? risingPen : fallingPen,
close > open ? tRisingFill : tFallingFill,
close > open ? tRisingBorder : tFallingBorder,
pt);
}
}
}
}
}
}
/// <summary>
/// Initializes a new instance of the <see cref="LinearAsOrdinalScale"/> class.
/// The Copy Constructor
/// </summary>
/// <param name="rhs">
/// The <see cref="LinearAsOrdinalScale"/> object from which to copy
/// </param>
/// <param name="owner">
/// The <see cref="Axis"/> object that will own the new instance of <see cref="LinearAsOrdinalScale"/>
/// </param>
public LinearAsOrdinalScale(Scale rhs, Axis owner)
: base(rhs, owner)
{
}
/// <summary>
/// Initializes a new instance of the <see cref="OrdinalScale"/> class.
/// Default constructor that defines the owner <see cref="Axis"/>
/// (containing object) for this new object.
/// </summary>
/// <param name="owner">
/// The owner, or containing object, of this instance
/// </param>
public OrdinalScale(Axis owner)
: base(owner)
{
}
/// <summary>
/// Draw all the <see cref="ErrorBar"/>'s to the specified <see cref="Graphics"/>
/// device as a an error bar at each defined point.
/// </summary>
/// <param name="g">
/// A graphic device object to be drawn into. This is normally e.Graphics from the PaintEventArgs argument to the Paint() method.
/// </param>
/// <param name="pane">
/// A reference to the <see cref="GraphPane"/> object that is the parent or owner of this object.
/// </param>
/// <param name="curve">
/// A <see cref="CurveItem"/> object representing the
/// <see cref="Bar"/>'s to be drawn.
/// </param>
/// <param name="baseAxis">
/// The <see cref="Axis"/> class instance that defines the base (independent) axis for the <see cref="Bar"/>
/// </param>
/// <param name="valueAxis">
/// The <see cref="Axis"/> class instance that defines the value (dependent) axis for the <see cref="Bar"/>
/// </param>
/// <param name="scaleFactor">
/// The scaling factor to be used for rendering objects. This is calculated and passed down by the parent <see cref="GraphPane"/> object using the
/// <see cref="PaneBase.CalcScaleFactor"/> method, and is used to proportionally adjust font sizes, etc. according to the actual size of the graph.
/// </param>
public void Draw(Graphics g, GraphPane pane, ErrorBarItem curve, Axis baseAxis, Axis valueAxis, float scaleFactor)
{
ValueHandler valueHandler = new ValueHandler(pane, false);
float pixBase, pixValue, pixLowValue;
double scaleBase, scaleValue, scaleLowValue;
if (curve.Points != null && this.IsVisible)
{
using (Pen pen = !curve.IsSelected ? new Pen(this._color, this._penWidth) : new Pen(Selection.Border.Color, Selection.Border.Width))
{
// Loop over each defined point
for (int i = 0; i < curve.Points.Count; i++)
{
valueHandler.GetValues(curve, i, out scaleBase, out scaleLowValue, out scaleValue);
// Any value set to double max is invalid and should be skipped
// This is used for calculated values that are out of range, divide
// by zero, etc.
// Also, any value <= zero on a log scale is invalid
if (!curve.Points[i].IsInvalid3D && (scaleBase > 0 || !baseAxis._scale.IsLog)
&& ((scaleValue > 0 && scaleLowValue > 0) || !valueAxis._scale.IsLog))
{
pixBase = baseAxis.Scale.Transform(curve.IsOverrideOrdinal, i, scaleBase);
pixValue = valueAxis.Scale.Transform(curve.IsOverrideOrdinal, i, scaleValue);
pixLowValue = valueAxis.Scale.Transform(curve.IsOverrideOrdinal, i, scaleLowValue);
// if ( this.fill.IsGradientValueType )
// brush = fill.MakeBrush( _rect, _points[i] );
this.Draw(
g,
pane,
baseAxis is XAxis || baseAxis is X2Axis,
pixBase,
pixValue,
pixLowValue,
scaleFactor,
pen,
curve.IsSelected,
curve.Points[i]);
}
}
}
}
}
/// <summary>
/// Initializes a new instance of the <see cref="OrdinalScale"/> class.
/// The Copy Constructor
/// </summary>
/// <param name="rhs">
/// The <see cref="OrdinalScale"/> object from which to copy
/// </param>
/// <param name="owner">
/// The <see cref="Axis"/> object that will own the new instance of <see cref="OrdinalScale"/>
/// </param>
public OrdinalScale(Scale rhs, Axis owner)
: base(rhs, owner)
{
}
/// <summary>
/// Initializes a new instance of the <see cref="DateAsOrdinalScale"/> class.
/// Default constructor that defines the owner <see cref="Axis"/>
/// (containing object) for this new object.
/// </summary>
/// <param name="owner">
/// The owner, or containing object, of this instance
/// </param>
public DateAsOrdinalScale(Axis owner)
: base(owner)
{
}
/// <summary>
/// The set scroll.
/// </summary>
/// <param name="scrollBar">
/// The scroll bar.
/// </param>
/// <param name="axis">
/// The axis.
/// </param>
/// <param name="scrollMin">
/// The scroll min.
/// </param>
/// <param name="scrollMax">
/// The scroll max.
/// </param>
private void SetScroll(ScrollBar scrollBar, Axis axis, double scrollMin, double scrollMax)
{
if (scrollBar != null && axis != null)
{
scrollBar.Minimum = 0;
scrollBar.Maximum = _ScrollControlSpan - 1;
if (scrollMin > axis._scale._min)
{
scrollMin = axis._scale._min;
}
if (scrollMax < axis._scale._max)
{
scrollMax = axis._scale._max;
}
int val = 0;
Scale scale = axis._scale;
double minLinearized = scale._minLinearized;
double maxLinearized = scale._maxLinearized;
scrollMin = scale.Linearize(scrollMin);
scrollMax = scale.Linearize(scrollMax);
double scrollMin2 = scrollMax - (maxLinearized - minLinearized);
/*
if ( axis.Scale.IsLog )
scrollMin2 = scrollMax / ( axis._scale._max / axis._scale._min );
else
scrollMin2 = scrollMax - ( axis._scale._max - axis._scale._min );
*/
if (scrollMin >= scrollMin2)
{
// scrollBar.Visible = false;
scrollBar.Enabled = false;
scrollBar.Value = 0;
}
else
{
double ratio = (maxLinearized - minLinearized) / (scrollMax - scrollMin);
/*
if ( axis.Scale.IsLog )
ratio = ( Math.Logger( axis._scale._max ) - Math.Logger( axis._scale._min ) ) /
( Math.Logger( scrollMax ) - Math.Logger( scrollMin ) );
else
ratio = ( axis._scale._max - axis._scale._min ) / ( scrollMax - scrollMin );
*/
int largeChange = (int)(ratio * _ScrollControlSpan + 0.5);
if (largeChange < 1)
{
largeChange = 1;
}
scrollBar.LargeChange = largeChange;
int smallChange = largeChange / _ScrollSmallRatio;
if (smallChange < 1)
{
smallChange = 1;
}
scrollBar.SmallChange = smallChange;
int span = _ScrollControlSpan - largeChange;
val = (int)((minLinearized - scrollMin) / (scrollMin2 - scrollMin) * span + 0.5);
/*
if ( axis.Scale.IsLog )
val = (int)( ( Math.Logger( axis._scale._min ) - Math.Logger( scrollMin ) ) /
( Math.Logger( scrollMin2 ) - Math.Logger( scrollMin ) ) * span + 0.5 );
else
val = (int)( ( axis._scale._min - scrollMin ) / ( scrollMin2 - scrollMin ) *
span + 0.5 );
*/
if (val < 0)
{
val = 0;
}
else if (val > span)
{
val = span;
}
// if ( ( axis is XAxis && axis.IsReverse ) || ( ( ! axis is XAxis ) && ! axis.IsReverse ) )
if ((axis is XAxis) == axis.Scale.IsReverse)
{
val = span - val;
}
if (val < scrollBar.Minimum)
{
val = scrollBar.Minimum;
}
if (val > scrollBar.Maximum)
{
val = scrollBar.Maximum;
}
scrollBar.Value = val;
scrollBar.Enabled = true;
// scrollBar.Visible = true;
}
}
}
/// <summary>
/// Make a string label that corresponds to a user scale value.
/// </summary>
/// <param name="axis">
/// The axis from which to obtain the scale value. This determines if it's a date value, linear, log, etc.
/// </param>
/// <param name="val">
/// The value to be made into a label
/// </param>
/// <param name="iPt">
/// The ordinal position of the value
/// </param>
/// <param name="isOverrideOrdinal">
/// true to override the ordinal settings of the axis, and prefer the actual value instead.
/// </param>
/// <returns>
/// The string label.
/// </returns>
protected string MakeValueLabel(Axis axis, double val, int iPt, bool isOverrideOrdinal)
{
if (axis != null)
{
if (axis.Scale.IsDate || axis.Scale.Type == AxisType.DateAsOrdinal)
{
return XDate.ToString(val, this._pointDateFormat);
}
if (axis._scale.IsText && axis._scale._textLabels != null)
{
int i = iPt;
if (isOverrideOrdinal)
{
i = (int)(val - 0.5);
}
if (i >= 0 && i < axis._scale._textLabels.Length)
{
return axis._scale._textLabels[i];
}
return (i + 1).ToString();
}
if (axis.Scale.IsAnyOrdinal && axis.Scale.Type != AxisType.LinearAsOrdinal && !isOverrideOrdinal)
{
return iPt.ToString(this._pointValueFormat);
}
return val.ToString(this._pointValueFormat);
}
return string.Empty;
}
/// <summary>
/// Draw the this <see cref="Bar"/> to the specified <see cref="Graphics"/>
/// device as a bar at each defined point. This method is normally only called by the <see cref="BarItem.Draw"/> method of the
/// <see cref="BarItem"/> object
/// </summary>
/// <param name="g">
/// A graphic device object to be drawn into. This is normally e.Graphics from the PaintEventArgs argument to the Paint() method.
/// </param>
/// <param name="pane">
/// A reference to the <see cref="GraphPane"/> object that is the parent or owner of this object.
/// </param>
/// <param name="curve">
/// A <see cref="CurveItem"/> object representing the
/// <see cref="Bar"/>'s to be drawn.
/// </param>
/// <param name="baseAxis">
/// The <see cref="Axis"/> class instance that defines the base (independent) axis for the <see cref="Bar"/>
/// </param>
/// <param name="valueAxis">
/// The <see cref="Axis"/> class instance that defines the value (dependent) axis for the <see cref="Bar"/>
/// </param>
/// <param name="barWidth">
/// The width of each bar, in pixels.
/// </param>
/// <param name="pos">
/// The ordinal position of the this bar series (0=first bar, 1=second bar, etc.) in the cluster of bars.
/// </param>
/// <param name="scaleFactor">
/// The scaling factor to be used for rendering objects. This is calculated and passed down by the parent <see cref="GraphPane"/> object using the
/// <see cref="PaneBase.CalcScaleFactor"/> method, and is used to proportionally adjust font sizes, etc. according to the actual size of the graph.
/// </param>
public void DrawBars(Graphics g, GraphPane pane, CurveItem curve, Axis baseAxis, Axis valueAxis, float barWidth, int pos, float scaleFactor)
{
// For non-cluster bar types, the position is always zero since the bars are on top
// of eachother
BarType barType = pane._barSettings.Type;
if (barType == BarType.Overlay || barType == BarType.Stack || barType == BarType.PercentStack || barType == BarType.SortedOverlay)
{
pos = 0;
}
// Loop over each defined point and draw the corresponding bar
for (int i = 0; i < curve.Points.Count; i++)
{
this.DrawSingleBar(g, pane, curve, i, pos, baseAxis, valueAxis, barWidth, scaleFactor);
}
}
/// <summary>
/// Handle a panning operation for the specified <see cref="Axis"/>.
/// </summary>
/// <param name="axis">
/// The <see cref="Axis"/> to be panned
/// </param>
/// <param name="startVal">
/// The value where the pan started. The scale range will be shifted by the difference between <see paramref="startVal"/> and
/// <see paramref="endVal"/>.
/// </param>
/// <param name="endVal">
/// The value where the pan ended. The scale range will be shifted by the difference between <see paramref="startVal"/> and
/// <see paramref="endVal"/>.
/// </param>
protected void PanScale(Axis axis, double startVal, double endVal)
{
if (axis != null)
{
Scale scale = axis._scale;
double delta = scale.Linearize(startVal) - scale.Linearize(endVal);
scale._minLinearized += delta;
scale._maxLinearized += delta;
scale._minAuto = false;
scale._maxAuto = false;
/*
if ( axis.Type == AxisType.Logger )
{
axis._scale._min *= startVal / endVal;
axis._scale._max *= startVal / endVal;
}
else
{
axis._scale._min += startVal - endVal;
axis._scale._max += startVal - endVal;
}
*/
}
}
/// <summary>
/// Protected internal routine that draws the specified single bar (an individual "point") of this series to the specified <see cref="Graphics"/>
/// device.
/// </summary>
/// <param name="g">
/// A graphic device object to be drawn into. This is normally e.Graphics from the PaintEventArgs argument to the Paint() method.
/// </param>
/// <param name="pane">
/// A reference to the <see cref="GraphPane"/> object that is the parent or owner of this object.
/// </param>
/// <param name="curve">
/// A <see cref="CurveItem"/> object representing the
/// <see cref="Bar"/>'s to be drawn.
/// </param>
/// <param name="index">
/// The zero-based index number for the single bar to be drawn.
/// </param>
/// <param name="pos">
/// The ordinal position of the this bar series (0=first bar, 1=second bar, etc.) in the cluster of bars.
/// </param>
/// <param name="baseAxis">
/// The <see cref="Axis"/> class instance that defines the base (independent) axis for the <see cref="Bar"/>
/// </param>
/// <param name="valueAxis">
/// The <see cref="Axis"/> class instance that defines the value (dependent) axis for the <see cref="Bar"/>
/// </param>
/// <param name="barWidth">
/// The width of each bar, in pixels.
/// </param>
/// <param name="scaleFactor">
/// The scaling factor to be used for rendering objects. This is calculated and passed down by the parent <see cref="GraphPane"/> object using the
/// <see cref="PaneBase.CalcScaleFactor"/> method, and is used to proportionally adjust font sizes, etc. according to the actual size of the graph.
/// </param>
protected virtual void DrawSingleBar(
Graphics g,
GraphPane pane,
CurveItem curve,
int index,
int pos,
Axis baseAxis,
Axis valueAxis,
float barWidth,
float scaleFactor)
{
// pixBase = pixel value for the bar center on the base axis
// pixHiVal = pixel value for the bar top on the value axis
// pixLowVal = pixel value for the bar bottom on the value axis
float pixBase, pixHiVal, pixLowVal;
float clusterWidth = pane.BarSettings.GetClusterWidth();
// float barWidth = curve.GetBarWidth( pane );
float clusterGap = pane._barSettings.MinClusterGap * barWidth;
float barGap = barWidth * pane._barSettings.MinBarGap;
// curBase = the scale value on the base axis of the current bar
// curHiVal = the scale value on the value axis of the current bar
// curLowVal = the scale value of the bottom of the bar
double curBase, curLowVal, curHiVal;
ValueHandler valueHandler = new ValueHandler(pane, false);
valueHandler.GetValues(curve, index, out curBase, out curLowVal, out curHiVal);
// Any value set to double max is invalid and should be skipped
// This is used for calculated values that are out of range, divide
// by zero, etc.
// Also, any value <= zero on a log scale is invalid
if (!curve.Points[index].IsInvalid)
{
// calculate a pixel value for the top of the bar on value axis
pixLowVal = valueAxis.Scale.Transform(curve.IsOverrideOrdinal, index, curLowVal);
pixHiVal = valueAxis.Scale.Transform(curve.IsOverrideOrdinal, index, curHiVal);
// calculate a pixel value for the center of the bar on the base axis
pixBase = baseAxis.Scale.Transform(curve.IsOverrideOrdinal, index, curBase);
// Calculate the pixel location for the side of the bar (on the base axis)
float pixSide = pixBase - clusterWidth / 2.0F + clusterGap / 2.0F + pos * (barWidth + barGap);
// Draw the bar
if (pane._barSettings.Base == BarBase.X)
{
this.Draw(g, pane, pixSide, pixSide + barWidth, pixLowVal, pixHiVal, scaleFactor, true, curve.IsSelected, curve.Points[index]);
}
else
{
this.Draw(g, pane, pixLowVal, pixHiVal, pixSide, pixSide + barWidth, scaleFactor, true, curve.IsSelected, curve.Points[index]);
}
}
}
/// <summary>
/// Zoom the specified axis by the specified amount, with the center of the zoom at the (optionally) specified point.
/// </summary>
/// <remarks>
/// This method is used for MouseWheel zoom operations
/// </remarks>
/// <param name="axis">
/// The <see cref="Axis"/> to be zoomed.
/// </param>
/// <param name="zoomFraction">
/// The zoom fraction, less than 1.0 to zoom in, greater than 1.0 to zoom out. That is, a value of 0.9 will zoom in such that the scale length is 90% of
/// what it previously was.
/// </param>
/// <param name="centerVal">
/// The location for the center of the zoom. This is only used if
/// <see paramref="IsZoomOnMouseCenter"/> is true.
/// </param>
/// <param name="isZoomOnCenter">
/// true if the zoom is to be centered at the
/// <see paramref="centerVal"/> screen position, false for the zoom to be centered within the <see cref="Chart.Rect"/>.
/// </param>
protected void ZoomScale(Axis axis, double zoomFraction, double centerVal, bool isZoomOnCenter)
{
if (axis != null && zoomFraction > 0.0001 && zoomFraction < 1000.0)
{
Scale scale = axis._scale;
/*
if ( axis.Scale.IsLog )
{
double ratio = Math.Sqrt( axis._scale._max / axis._scale._min * zoomFraction );
if ( !isZoomOnCenter )
centerVal = Math.Sqrt( axis._scale._max * axis._scale._min );
axis._scale._min = centerVal / ratio;
axis._scale._max = centerVal * ratio;
}
else
{
*/
double minLin = axis._scale._minLinearized;
double maxLin = axis._scale._maxLinearized;
double range = (maxLin - minLin) * zoomFraction / 2.0;
if (!isZoomOnCenter)
{
centerVal = (maxLin + minLin) / 2.0;
}
axis._scale._minLinearized = centerVal - range;
axis._scale._maxLinearized = centerVal + range;
// }
axis._scale._minAuto = false;
axis._scale._maxAuto = false;
}
}
/// <summary>
/// Initializes a new instance of the <see cref="DateScale"/> class.
/// Default constructor that defines the owner <see cref="Axis"/>
/// (containing object) for this new object.
/// </summary>
/// <param name="owner">
/// The owner, or containing object, of this instance
/// </param>
public DateScale(Axis owner)
: base(owner)
{
}
/*
/// <summary>
/// Protected internal routine that draws the specified single bar (an individual "point")
/// of this series to the specified <see cref="Graphics"/> device.
/// </summary>
/// <param name="g">
/// A graphic device object to be drawn into. This is normally e.Graphics from the
/// PaintEventArgs argument to the Paint() method.
/// </param>
/// <param name="pane">
/// A reference to the <see cref="GraphPane"/> object that is the parent or
/// owner of this object.
/// </param>
/// <param name="curve">A <see cref="CurveItem"/> object representing the
/// <see cref="Bar"/>'s to be drawn.</param>
/// <param name="index">
/// The zero-based index number for the single bar to be drawn.
/// </param>
/// <param name="pos">
/// The ordinal position of the this bar series (0=first bar, 1=second bar, etc.)
/// in the cluster of bars.
/// </param>
/// <param name="baseAxis">The <see cref="Axis"/> class instance that defines the base (independent)
/// axis for the <see cref="Bar"/></param>
/// <param name="valueAxis">The <see cref="Axis"/> class instance that defines the value (dependent)
/// axis for the <see cref="Bar"/></param>
/// <param name="barWidth">
/// The width of each bar, in pixels.
/// </param>
/// <param name="scaleFactor">
/// The scaling factor to be used for rendering objects. This is calculated and
/// passed down by the parent <see cref="GraphPane"/> object using the
/// <see cref="PaneBase.CalcScaleFactor"/> method, and is used to proportionally adjust
/// font sizes, etc. according to the actual size of the graph.
/// </param>
override protected void DrawSingleBar( Graphics g, GraphPane pane,
CurveItem curve,
int index, int pos, Axis baseAxis, Axis valueAxis,
float barWidth, float scaleFactor )
{
//float scaledSize = GetBarWidth( pane, baseAxis, scaleFactor );
// pixBase = pixel value for the bar center on the base axis
// pixValue = pixel value for the bar top on the value axis
// pixLow = pixel value for the bar bottom on the value axis
float pixBase, pixHiVal, pixLowVal;
// curBase = the scale value on the base axis of the current bar
// curValue = the scale value on the value axis of the current bar
double curBase, curLowVal, curHiVal;
ValueHandler valueHandler = new ValueHandler( pane, false );
valueHandler.GetValues( curve, index, out curBase,
out curLowVal, out curHiVal );
barWidth = GetBarWidth( pane, baseAxis, scaleFactor );
// curLow = the scale value on the value axis for the bottom of the current bar
// Get a "low" value for the bottom of the bar and verify validity
if ( curLowVal == PointPair.Missing ||
System.Double.IsNaN( curLowVal ) ||
System.Double.IsInfinity( curLowVal ) )
curLowVal = 0;
// Any value set to double max is invalid and should be skipped
// This is used for calculated values that are out of range, divide
// by zero, etc.
// Also, any value <= zero on a log scale is invalid
if ( !curve.Points[index].IsInvalid )
{
// calculate a pixel value for the top of the bar on value axis
pixHiVal = valueAxis.Scale.Transform( curve.IsOverrideOrdinal, index, curHiVal );
// calculate a pixel value for the center of the bar on the base axis
pixBase = baseAxis.Scale.Transform( curve.IsOverrideOrdinal, index, curBase );
pixLowVal = valueAxis.Scale.Transform( curve.IsOverrideOrdinal, index, curLowVal );
// Calculate the pixel location for the side of the bar (on the base axis)
float pixSide = pixBase - barWidth / 2.0F;
// Calculate the pixel location for the side of the bar (on the base axis)
float pixSide = pixBase - clusterWidth / 2.0F + clusterGap / 2.0F +
pos * ( barWidth + barGap );
// Draw the bar
if ( baseAxis is XAxis || baseAxis is X2Axis )
this.Draw( g, pane, pixSide, pixSide + barWidth, pixLowVal,
pixHiVal, scaleFactor, true, curve.IsSelected,
curve.Points[index] );
else
this.Draw( g, pane, pixLowVal, pixHiVal, pixSide, pixSide + barWidth,
scaleFactor, true, curve.IsSelected,
curve.Points[index] );
}
}
*/
/// <summary>
/// Returns the width of the bar, in pixels, based on the settings for
/// <see cref="Size"/> and <see cref="IsAutoSize"/>.
/// </summary>
/// <param name="pane">
/// The parent <see cref="GraphPane"/> object.
/// </param>
/// <param name="baseAxis">
/// The <see cref="Axis"/> object that represents the bar base (independent axis).
/// </param>
/// <param name="scaleFactor">
/// The scaling factor to be used for rendering objects. This is calculated and passed down by the parent <see cref="GraphPane"/> object using the
/// <see cref="PaneBase.CalcScaleFactor"/> method, and is used to proportionally adjust font sizes, etc. according to the actual size of the graph.
/// </param>
/// <returns>
/// The width of each bar, in pixel units
/// </returns>
public float GetBarWidth(GraphPane pane, Axis baseAxis, float scaleFactor)
{
float width;
if (this._isAutoSize)
{
width = baseAxis._scale.GetClusterWidth(this._userScaleSize) / (1.0F + pane._barSettings.MinClusterGap);
}
else
{
width = this._size * scaleFactor;
}
// use integral size
return (int)(width + 0.5f);
}
/// <summary>
/// Initializes a new instance of the <see cref="Axis"/> class.
/// The Copy Constructor.
/// </summary>
/// <param name="rhs">
/// The Axis object from which to copy
/// </param>
public Axis(Axis rhs)
{
this._scale = rhs._scale.Clone(this);
this._cross = rhs._cross;
this._crossAuto = rhs._crossAuto;
this._majorTic = rhs.MajorTic.Clone();
this._minorTic = rhs.MinorTic.Clone();
this._majorGrid = rhs._majorGrid.Clone();
this._minorGrid = rhs._minorGrid.Clone();
this._isVisible = rhs.IsVisible;
this._isAxisSegmentVisible = rhs._isAxisSegmentVisible;
this._title = rhs.Title.Clone();
this._axisGap = rhs._axisGap;
this._minSpace = rhs.MinSpace;
this._color = rhs.Color;
}
/// <summary>
/// Create a new clone of the current item, with a new owner assignment
/// </summary>
/// <param name="owner">
/// The new <see cref="Axis"/> instance that will be the owner of the new Scale
/// </param>
/// <returns>
/// A new <see cref="Scale"/> clone.
/// </returns>
public override Scale Clone(Axis owner)
{
return new OrdinalScale(this, owner);
}
/// <summary>
/// The set space.
/// </summary>
/// <param name="axis">
/// The axis.
/// </param>
/// <param name="clientSize">
/// The client size.
/// </param>
/// <param name="spaceNorm">
/// The space norm.
/// </param>
/// <param name="spaceAlt">
/// The space alt.
/// </param>
private void SetSpace(Axis axis, float clientSize, ref float spaceNorm, ref float spaceAlt)
{
// spaceNorm = 0;
// spaceAlt = 0;
float crossFrac = axis.CalcCrossFraction(this);
float crossPix = crossFrac * (1 + crossFrac) * (1 + crossFrac * crossFrac) * clientSize;
if (!axis.IsPrimary(this) && axis.IsCrossShifted(this))
{
axis._tmpSpace = 0;
}
if (axis._tmpSpace < crossPix)
{
axis._tmpSpace = 0;
}
else if (crossPix > 0)
{
axis._tmpSpace -= crossPix;
}
if (axis._scale._isLabelsInside && (axis.IsPrimary(this) || (crossFrac != 0.0 && crossFrac != 1.0)))
{
spaceAlt = axis._tmpSpace;
}
else
{
spaceNorm = axis._tmpSpace;
}
}
/// <summary>
/// Initializes a new instance of the <see cref="LinearScale"/> class.
/// The Copy Constructor
/// </summary>
/// <param name="rhs">
/// The <see cref="LinearScale"/> object from which to copy
/// </param>
/// <param name="owner">
/// The <see cref="Axis"/> object that will own the new instance of <see cref="LinearScale"/>
/// </param>
public LinearScale(Scale rhs, Axis owner)
: base(rhs, owner)
{
}
