/// <summary>
/// Initializes a new instance of the OrientedAxisGridLines class.
/// </summary>
/// <param name="displayAxis">The axis to draw grid lines for.</param>
public OrientedAxisGridLines(DisplayAxis displayAxis)
: base(displayAxis)
{
_gridLinePool = new ObjectPool <Line>(() => new Line {
Style = Axis.GridLineStyle
});
}
/// <summary>
/// Acquire a horizontal linear axis and a vertical linear axis.
/// </summary>
/// <param name="firstDataPoint">The first data point.</param>
protected override void GetAxes(DataPoint firstDataPoint)
{
GetAxes(
firstDataPoint,
(axis) => axis.Orientation == AxisOrientation.X,
() =>
{
IAxis axis = CreateRangeAxisFromData(firstDataPoint.IndependentValue);
if (axis == null)
{
axis = new CategoryAxis();
}
axis.Orientation = AxisOrientation.X;
return(axis);
},
(axis) => axis.Orientation == AxisOrientation.Y && axis is IRangeAxis,
() =>
{
DisplayAxis axis = (DisplayAxis)CreateRangeAxisFromData(firstDataPoint.DependentValue);
if (axis == null)
{
throw new InvalidOperationException(Properties.Resources.DataPointSeriesWithAxes_NoSuitableAxisAvailableForPlottingDependentValue);
}
axis.ShowGridLines = true;
axis.Orientation = AxisOrientation.Y;
return(axis);
});
}
/// <summary>
/// Acquire a horizontal category axis and a vertical linear axis.
/// </summary>
/// <param name="firstDataPoint">The first data point.</param>
protected override void GetAxes(DataPoint firstDataPoint)
{
GetAxes(
firstDataPoint,
(axis) => axis.Orientation == AxisOrientation.X,
() => new CategoryAxis {
Orientation = AxisOrientation.X
},
(axis) =>
{
IRangeAxis rangeAxis = axis as IRangeAxis;
return(rangeAxis != null && rangeAxis.Origin != null && axis.Orientation == AxisOrientation.Y);
},
() =>
{
IRangeAxis rangeAxis = CreateRangeAxisFromData(firstDataPoint.DependentValue);
rangeAxis.Orientation = AxisOrientation.Y;
if (rangeAxis == null || rangeAxis.Origin == null)
{
throw new InvalidOperationException(Properties.Resources.DataPointSeriesWithAxes_NoSuitableAxisAvailableForPlottingDependentValue);
}
DisplayAxis axis = rangeAxis as DisplayAxis;
if (axis != null)
{
axis.ShowGridLines = true;
}
return(rangeAxis);
});
}
/// <summary>
/// AxisLabelStyleProperty property changed handler.
/// </summary>
/// <param name="d">DisplayAxis that changed its AxisLabelStyle.</param>
/// <param name="e">Event arguments.</param>
private static void OnAxisLabelStylePropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
DisplayAxis source = (DisplayAxis)d;
Style oldValue = (Style)e.OldValue;
Style newValue = (Style)e.NewValue;
source.OnAxisLabelStylePropertyChanged(oldValue, newValue);
}
/// <summary>
/// ShowGridLinesProperty property changed handler.
/// </summary>
/// <param name="d">Axis that changed its ShowGridLines.</param>
/// <param name="e">Event arguments.</param>
private static void OnShowGridLinesPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
DisplayAxis source = (DisplayAxis)d;
bool oldValue = (bool)e.OldValue;
bool newValue = (bool)e.NewValue;
source.OnShowGridLinesPropertyChanged(oldValue, newValue);
}
/// <summary>
/// TitleProperty property changed handler.
/// </summary>
/// <param name="d">DisplayAxis that changed its Title.</param>
/// <param name="e">Event arguments.</param>
private static void OnTitlePropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
DisplayAxis source = (DisplayAxis)d;
object oldValue = (object)e.OldValue;
object newValue = (object)e.NewValue;
source.OnTitlePropertyChanged(oldValue, newValue);
}
/// <summary>
/// AxisProperty property changed handler.
/// </summary>
/// <param name="oldValue">Old value.</param>
/// <param name="newValue">New value.</param>
private void OnAxisPropertyChanged(DisplayAxis oldValue, DisplayAxis newValue)
{
Debug.Assert(newValue != null, "Don't set the axis property to null.");
if (newValue != null)
{
newValue.RegisteredListeners.Add(this);
}
if (oldValue != null)
{
oldValue.RegisteredListeners.Remove(this);
}
}
/// <summary>
/// AxisProperty property changed handler.
/// </summary>
/// <param name="oldValue">Old value.</param>
/// <param name="newValue">New value.</param>
private void OnAxisPropertyChanged(DisplayAxis oldValue, DisplayAxis newValue)
{
Debug.Assert(newValue != null, "Don't set the axis property to null.");
if (newValue != null)
{
newValue.RegisteredListeners.Add(this);
}
if (oldValue != null)
{
oldValue.RegisteredListeners.Remove(this);
}
}
/// <summary>
/// Draws the grid lines.
/// </summary>
protected override void Invalidate()
{
_gridLinePool.Reset();
try
{
IList <UnitValue> intervals = Axis.InternalGetMajorGridLinePositions().ToList();
Children.Clear();
double maximumHeight = Math.Max(Math.Round(ActualHeight - 1), 0);
double maximumWidth = Math.Max(Math.Round(ActualWidth - 1), 0);
for (int index = 0; index < intervals.Count; index++)
{
double currentValue = intervals[index].Value;
double position = currentValue;
if (!double.IsNaN(position))
{
Line line = _gridLinePool.Next();
DisplayAxis.SetGridLineIndex(line, index);
if (Axis.Orientation == AxisOrientation.Y)
{
line.Y1 = line.Y2 = maximumHeight - Math.Round(position - (line.StrokeThickness / 2));
line.X1 = 0.0;
line.X2 = maximumWidth;
}
else if (Axis.Orientation == AxisOrientation.X)
{
line.X1 = line.X2 = Math.Round(position - (line.StrokeThickness / 2));
line.Y1 = 0.0;
line.Y2 = maximumHeight;
}
// workaround for '1px line thickness issue'
if (line.StrokeThickness % 2 > 0)
{
line.SetValue(LeftProperty, 0.5);
line.SetValue(TopProperty, 0.5);
}
Children.Add(line);
}
}
}
finally
{
_gridLinePool.Done();
}
}
/// <summary>
/// Instantiates a new instance of the DisplayAxisGridLines class.
/// </summary>
/// <param name="axis">The axis used by the DisplayAxisGridLines.</param>
public DisplayAxisGridLines(DisplayAxis axis)
{
this.Axis = axis;
this.SizeChanged += new SizeChangedEventHandler(OnSizeChanged);
}
/// <summary>
/// Instantiates a new instance of the DisplayAxisGridLines class.
/// </summary>
/// <param name="axis">The axis used by the DisplayAxisGridLines.</param>
public DisplayAxisGridLines(DisplayAxis axis)
{
Axis = axis;
SizeChanged += OnSizeChanged;
}
/// <summary>
/// Instantiates a new instance of the DisplayAxisGridLines class.
/// </summary>
/// <param name="axis">The axis used by the DisplayAxisGridLines.</param>
public DisplayAxisGridLines(DisplayAxis axis)
{
this.Axis = axis;
this.SizeChanged += new SizeChangedEventHandler(OnSizeChanged);
}
/// <summary>
/// Instantiates a new instance of the DisplayAxisGridLines class.
/// </summary>
/// <param name="axis">The axis used by the DisplayAxisGridLines.</param>
public ZeroLineCanvas(DisplayAxis axis)
{
this.Axis = axis;
this.SizeChanged += new SizeChangedEventHandler(OnSizeChanged);
}
/// <summary>
/// AxisProperty property changed handler.
/// </summary>
/// <param name="oldValue">Old value.</param>
/// <param name="newValue">New value.</param>
private void OnAxisPropertyChanged(DisplayAxis oldValue, DisplayAxis newValue)
{
if (newValue != null)
{
newValue.RegisteredListeners.Add(this);
}
if (oldValue != null)
{
oldValue.RegisteredListeners.Remove(this);
}
}
/// <summary>
/// Initializes a new instance of the OrientedAxisGridLines class.
/// </summary>
/// <param name="displayAxis">The axis to draw grid lines for.</param>
public OrientedAxisGridLines(DisplayAxis displayAxis)
: base(displayAxis)
{
_gridLinePool = new ObjectPool<Line>(() => new Line { Style = Axis.GridLineStyle });
}
