/// <summary>
/// Helper method which adds all accessibility objects for specified axis
/// </summary>
/// <param name="chartAccessibleObject">Chart accessibility object.</param>
/// <param name="axis">Axis to add accessibility for.</param>
private void AddAxisAccessibilityObjects(ChartAccessibleObject chartAccessibleObject, Axis axis)
{
// Y axis plus title
if (axis.enabled)
{
this._childList.Add(new ChartChildAccessibleObject(
chartAccessibleObject,
this,
axis,
ChartElementType.Axis,
axis.Name,
string.Empty,
AccessibleRole.Graphic));
if (axis.Title.Length > 0)
{
this._childList.Add(new ChartChildAccessibleObject(
chartAccessibleObject,
this,
axis,
ChartElementType.AxisTitle,
SR.AccessibilityChartAxisTitleName(axis.Name),
axis.Title,
AccessibleRole.StaticText));
}
if (axis.MajorGrid.Enabled)
{
this._childList.Add(new ChartChildAccessibleObject(
chartAccessibleObject,
this,
axis.MajorGrid,
ChartElementType.Gridlines,
SR.AccessibilityChartAxisMajorGridlinesName(axis.Name),
string.Empty,
AccessibleRole.Graphic));
}
if (axis.MinorGrid.Enabled)
{
this._childList.Add(new ChartChildAccessibleObject(
chartAccessibleObject,
this,
axis.MinorGrid,
ChartElementType.Gridlines,
SR.AccessibilityChartAxisMinorGridlinesName(axis.Name),
string.Empty,
AccessibleRole.Graphic));
}
}
}
/// <summary>
/// Initializes chart element accessibility object with specified title.
/// </summary>
/// <param name="chartAccessibleObject">Chart accessibility object.</param>
/// <param name="chartAccessibleParentObject">The chart accessible parent object.</param>
/// <param name="chartChildObject">Chart child object.</param>
/// <param name="chartChildObjectType">Chart child object type.</param>
/// <param name="name">Chart child object name.</param>
/// <param name="objectValue">Chart child object value.</param>
/// <param name="role">Chart child object role.</param>
public ChartChildAccessibleObject(
ChartAccessibleObject chartAccessibleObject,
AccessibleObject chartAccessibleParentObject,
object chartChildObject,
ChartElementType chartChildObjectType,
string name,
string objectValue,
AccessibleRole role)
{
this.chartAccessibleObject = chartAccessibleObject;
this.chartAccessibleParentObject = chartAccessibleParentObject;
this.chartChildObject = chartChildObject;
this.chartChildObjectType = chartChildObjectType;
this.name = name;
this.role = role;
this.objectValue = objectValue;
}
/// <summary>
/// Object constructor.
/// </summary>
/// <param name="chartAccessibleObject">Chart accessible object.</param>
/// <param name="series">Chart series object.</param>
public ChartChildSeriesAccessibleObject(ChartAccessibleObject chartAccessibleObject, AccessibleObject parent, Series series)
: base(
chartAccessibleObject,
parent,
series, ChartElementType.DataPoint,
SR.AccessibilitySeriesName(series.Name),
string.Empty,
AccessibleRole.Graphic)
{
// Add all series data points
int index = 1;
foreach (DataPoint point in series.Points)
{
this._childList.Add(new ChartChildAccessibleObject(
chartAccessibleObject,
this,
point,
ChartElementType.DataPoint,
SR.AccessibilityDataPointName(index),
string.Empty,
AccessibleRole.Graphic,
series.Name,
index - 1));
if (point.Label.Length > 0 || point.IsValueShownAsLabel)
{
this._childList.Add(new ChartChildAccessibleObject(
chartAccessibleObject,
this,
point,
ChartElementType.DataPointLabel,
SR.AccessibilityDataPointLabelName(index),
!String.IsNullOrEmpty(point._lastLabelText) ? point._lastLabelText : point.Label,
AccessibleRole.Text,
series.Name,
index - 1));
}
++index;
}
}
/// <summary>
/// Initializes chart element accessibility object with specified title.
/// </summary>
/// <param name="chartAccessibleObject">Chart accessibility object.</param>
/// <param name="chartAccessibleParentObject">The chart accessible parent object.</param>
/// <param name="chartChildObject">Chart child object.</param>
/// <param name="chartChildObjectType">Chart child object type.</param>
/// <param name="name">Chart child object name.</param>
/// <param name="objectValue">Chart child object value.</param>
/// <param name="role">Chart child object role.</param>
/// <param name="seriesName">Chart series name.</param>
/// <param name="pointIndex">Chart data point index.</param>
public ChartChildAccessibleObject(
ChartAccessibleObject chartAccessibleObject,
AccessibleObject chartAccessibleParentObject,
object chartChildObject,
ChartElementType chartChildObjectType,
string name,
string objectValue,
AccessibleRole role,
string seriesName,
int pointIndex)
{
this.chartAccessibleObject = chartAccessibleObject;
this.chartAccessibleParentObject = chartAccessibleParentObject;
this.chartChildObject = chartChildObject;
this.chartChildObjectType = chartChildObjectType;
this.name = name;
this.role = role;
this.objectValue = objectValue;
this.seriesName = seriesName;
this.dataPointIndex = pointIndex;
}
/// <summary>
/// Object constructor.
/// </summary>
/// <param name="chartAccessibleObject">Chart accessible object.</param>
/// <param name="chartArea">Chart area object.</param>
public ChartChildChartAreaAccessibleObject(ChartAccessibleObject chartAccessibleObject, ChartArea chartArea)
: base(
chartAccessibleObject,
chartAccessibleObject,
chartArea, ChartElementType.PlottingArea,
SR.AccessibilityChartAreaName(chartArea.Name),
string.Empty,
AccessibleRole.Graphic)
{
// Add all series shown in the chart area
List <Series> areaSeries = chartArea.GetSeries();
foreach (Series series in areaSeries)
{
this._childList.Add(new ChartChildSeriesAccessibleObject(chartAccessibleObject, this, series));
}
// Add all axes
this.AddAxisAccessibilityObjects(chartAccessibleObject, chartArea.AxisX);
this.AddAxisAccessibilityObjects(chartAccessibleObject, chartArea.AxisY);
this.AddAxisAccessibilityObjects(chartAccessibleObject, chartArea.AxisX2);
this.AddAxisAccessibilityObjects(chartAccessibleObject, chartArea.AxisY2);
}
/// <summary>
/// Object constructor.
/// </summary>
/// <param name="chartAccessibleObject">Chart accessible object.</param>
/// <param name="legend">Chart legend object.</param>
public ChartChildLegendAccessibleObject(ChartAccessibleObject chartAccessibleObject, Legend legend)
: base(
chartAccessibleObject,
chartAccessibleObject,
legend, ChartElementType.LegendArea,
SR.AccessibilityLegendName(legend.Name),
string.Empty,
AccessibleRole.StaticText)
{
// Add legend title as a child element
if (legend.Title.Length > 0)
{
this._childList.Add(new ChartChildAccessibleObject(
chartAccessibleObject,
this,
legend, ChartElementType.LegendTitle,
SR.AccessibilityLegendTitleName(legend.Name),
legend.Title,
AccessibleRole.StaticText));
}
// NOTE: Legend items are dynamically generated and curently are not part of the list
}