private void Annotation_SelectedIndexChanged(object sender, System.EventArgs e)
{
Chart1.Annotations.Clear();
AnnotationStyle.Items.Clear();
AnnotationStyle.Enabled = false;
AnnotationStyle1.Items.Clear();
AnnotationStyle1.Enabled = false;
AnnotationStyle2.Items.Clear();
AnnotationStyle2.Visible = false;
if(Annotation.SelectedItem.ToString() == "Line")
{
LineAnnotation annotation = new LineAnnotation();
annotation.AnchorDataPoint = Chart1.Series[0].Points[1];
annotation.Height = -25;
annotation.Width = -25;
annotation.LineWidth = 2;
Chart1.Annotations.Add(annotation);
SetLineControls(true);
}
else if(Annotation.SelectedItem.ToString() == "Vertical Line")
{
VerticalLineAnnotation annotation = new VerticalLineAnnotation();
annotation.AnchorDataPoint = Chart1.Series[0].Points[1];
annotation.Height = -25;
annotation.LineWidth = 2;
Chart1.Annotations.Add(annotation);
SetLineControls(true);
}
else if(Annotation.SelectedItem.ToString() == "Horizontal Line")
{
HorizontalLineAnnotation annotation = new HorizontalLineAnnotation();
annotation.AnchorDataPoint = Chart1.Series[0].Points[1];
annotation.Width = -25;
annotation.LineWidth = 2;
Chart1.Annotations.Add(annotation);
SetLineControls(true);
}
else if(Annotation.SelectedItem.ToString() == "Polyline")
{
PolylineAnnotation annotation = new PolylineAnnotation();
annotation.AnchorDataPoint = Chart1.Series[0].Points[1];
// explicitly set the relative height and width
annotation.Height = 50;
annotation.Width = 30;
PointF [] points = new PointF[5];
points[0].X = 0;
points[0].Y = 0;
points[1].X = 100;
points[1].Y = 0;
points[2].X = 0;
points[2].Y = 100;
points[3].X = 100;
points[3].Y = 100;
points[4].X = 0;
points[4].Y = 50;
annotation.GraphicsPath.AddPolygon(points);
Chart1.Annotations.Add(annotation);
SetLineControls(false);
}
else if(Annotation.SelectedItem.ToString() == "Text")
{
TextAnnotation annotation = new TextAnnotation();
annotation.AnchorDataPoint = Chart1.Series[0].Points[1];
annotation.Text = "I am a TextAnnotation";
annotation.ForeColor = Color.Black;
annotation.Font = new Font("Arial", 12);;
Chart1.Annotations.Add(annotation);
SetTextControls();
}
else if(Annotation.SelectedItem.ToString() == "Rectangle")
{
RectangleAnnotation annotation = new RectangleAnnotation();
annotation.AnchorDataPoint = Chart1.Series[0].Points[1];
annotation.Text = "I am a\nRectangleAnnotation";
annotation.ForeColor = Color.Black;
annotation.Font = new Font("Arial", 12);;
annotation.LineWidth = 2;
Chart1.Annotations.Add(annotation);
SetTextControls();
SetColorLineControls();
AnnotationStyle1.SelectedIndex = 2;
}
else if(Annotation.SelectedItem.ToString() == "Ellipse")
{
EllipseAnnotation annotation = new EllipseAnnotation();
annotation.AnchorDataPoint = Chart1.Series[0].Points[1];
annotation.Text = "I am an EllipseAnnotation";
annotation.ForeColor = Color.Black;
annotation.Font = new Font("Arial", 12);;
annotation.LineWidth = 2;
annotation.Height = 35;
annotation.Width = 60;
Chart1.Annotations.Add(annotation);
SetTextControls();
SetColorLineControls();
AnnotationStyle1.SelectedIndex = 2;
}
else if(Annotation.SelectedItem.ToString() == "Arrow")
{
ArrowAnnotation annotation = new ArrowAnnotation();
annotation.AnchorDataPoint = Chart1.Series[0].Points[1];
annotation.Height = -25;
annotation.Width = -25;
annotation.LineWidth = 2;
Chart1.Annotations.Add(annotation);
SetArrowControls();
}
else if(Annotation.SelectedItem.ToString() == "Border3D")
{
Border3DAnnotation annotation = new Border3DAnnotation();
annotation.AnchorDataPoint = Chart1.Series[0].Points[1];
annotation.Text = "I am a Border3DAnnotation";
annotation.ForeColor = Color.Black;
annotation.Font = new Font("Arial", 12);
annotation.Height = 40;
annotation.Width = 50;
Chart1.Annotations.Add(annotation);
SetBorder3DControls();
}
else if(Annotation.SelectedItem.ToString() == "Callout")
{
CalloutAnnotation annotation = new CalloutAnnotation();
annotation.AnchorDataPoint = Chart1.Series[0].Points[1];
annotation.Text = "I am a\nCalloutAnnotation";
annotation.ForeColor = Color.Black;
annotation.Font = new Font("Arial", 10);;
annotation.Height = 35;
annotation.Width = 50;
Chart1.Annotations.Add(annotation);
SetCalloutControls();
}
else if(Annotation.SelectedItem.ToString() == "Polygon")
{
PolygonAnnotation annotation = new PolygonAnnotation();
annotation.AnchorDataPoint = Chart1.Series[0].Points[1];
// explicitly set the relative height and width
annotation.Height = 50;
annotation.Width = 30;
annotation.BackColor = Color.FromArgb(128, Color.Orange);
// define relative value points for a polygon
PointF [] points = new PointF[5];
points[0].X = 0;
points[0].Y = 0;
points[1].X = 100;
points[1].Y = 0;
points[2].X = 100;
points[2].Y = 100;
points[3].X = 0;
points[3].Y = 100;
points[4].X = 50;
points[4].Y = 50;
annotation.GraphicsPath.AddPolygon(points);
Chart1.Annotations.Add(annotation);
SetColorControl();
SetColorLineControls();
}
else if(Annotation.SelectedItem.ToString() == "Image")
{
if(Chart1.Images.IndexOf("MyBmp") < 0)
{
Bitmap Bmp = new Bitmap(200, 75);
Graphics g = Graphics.FromImage(Bmp);
g.FillRectangle(new SolidBrush(Color.Transparent), 0, 0, Bmp.Width, Bmp.Height);
g.FillRectangle(new SolidBrush(Color.PaleGoldenrod), Bmp.Width/2, 0, Bmp.Width/2, Bmp.Height);
g.FillRectangle(new SolidBrush(Color.PaleVioletRed), 0, 0, Bmp.Width/2, Bmp.Height);
g.FillRectangle(new SolidBrush(Color.FromArgb(128, Color.DarkOrange)), 0, Bmp.Height/2, Bmp.Width, Bmp.Height/2);
g.DrawString("I am an ImageAnnotation", new Font("Arial", 12),
new SolidBrush(Color.Black),
new Rectangle( 0, 0, Bmp.Width, Bmp.Height));
g.Dispose();
Chart1.Images.Add(new NamedImage("MyBmp", Bmp));
}
ImageAnnotation annotation = new ImageAnnotation();
annotation.AnchorDataPoint = Chart1.Series[0].Points[1];
annotation.Image = "MyBmp";
Chart1.Annotations.Add(annotation);
StyleLabel1.Text = "";
StyleLabel2.Text = "";
}
}
private void Form1_Load(object sender, EventArgs e)
{
for (int i = 0; i < 10; i++)
{
chart1.Series[0].Points.AddXY(i, i);
}
RectangleAnnotation annotation = new RectangleAnnotation();
annotation.BackColor = Color.ForestGreen;
annotation.ToolTip = "rectangle annotation";
annotation.Width = 2.5;
annotation.Height = 5;
annotation.AnchorOffsetY = -(annotation.Height / 2);
annotation.SetAnchor(chart1.Series[0].Points[5]);
chart1.Annotations.Add(annotation);
}
/// <summary>
/// Draw a rectangle on chart.
/// </summary>
/// <param name="sender">Source Chart.</param>
/// <param name="x">XAxis value</param>
/// <param name="y">YAxis value</param>
/// <param name="width">rectangle width using XAis value.</param>
/// <param name="height">rectangle height using YAis value.</param>
/// <param name="lineColor">Outline color.</param>
/// <param name="name">Annotation name.</param>
/// <param name="lineWidth">Line width</param>
/// <param name="lineStyle">Line style</param>
public static void DrawRectangle(this Chart sender, double x, double y,
double width, double height,
Drawing.Color lineColor, string name = "",
int lineWidth = 1, ChartDashStyle lineStyle = ChartDashStyle.Solid)
{
RectangleAnnotation rect = new RectangleAnnotation();
string chartAreaName = sender.ChartAreas[0].Name;
rect.ClipToChartArea = chartAreaName;
rect.AxisXName = chartAreaName + "\\rX";
rect.YAxisName = chartAreaName + "\\rY";
rect.BackColor = Drawing.Color.Transparent;
rect.ForeColor = Drawing.Color.Transparent;
rect.IsSizeAlwaysRelative = false;
rect.LineColor = lineColor;
rect.LineWidth = lineWidth;
rect.LineDashStyle = lineStyle;
//Limit rectangle within chart area
Axis ptrAxis = sender.ChartAreas[0].AxisX;
if (x < ptrAxis.Minimum)
{
width = width - (ptrAxis.Minimum - x);
x = ptrAxis.Minimum;
}
else if (x > ptrAxis.Maximum)
{
width = width - (x - ptrAxis.Maximum);
x = ptrAxis.Maximum;
}
if ((x + width) > ptrAxis.Maximum) width = ptrAxis.Maximum - x;
ptrAxis = sender.ChartAreas[0].AxisY;
if (y < ptrAxis.Minimum)
{
height = height - (ptrAxis.Minimum - y);
y = ptrAxis.Minimum;
}
else if (y > ptrAxis.Maximum)
{
height = height - (y - ptrAxis.Maximum);
y = ptrAxis.Maximum;
}
if ((y + height) > ptrAxis.Maximum) height = ptrAxis.Maximum - y;
rect.X = x;
rect.Y = y;
rect.Width = width;
rect.Height = height;
rect.LineColor = lineColor;
sender.Annotations.Add(rect);
if (!string.IsNullOrEmpty(name)) rect.Name = name;
}
/// <summary>
/// Draw a rectangle on chart.
/// </summary>
/// <param name="sender">Source Chart.</param>
/// <param name="x">XAxis value</param>
/// <param name="y">YAxis value</param>
/// <param name="width">rectangle width using XAis value.</param>
/// <param name="height">rectangle height using YAis value.</param>
/// <param name="lineColor">Outline color.</param>
/// <param name="name">Annotation name.</param>
/// <param name="lineWidth">Line width</param>
/// <param name="lineStyle">Line style</param>
public static void DrawRectangle(this Chart sender, double x, double y,
double width, double height,
Drawing.Color lineColor, string name = "",
int lineWidth = 1, ChartDashStyle lineStyle = ChartDashStyle.Solid)
{
RectangleAnnotation rect = new RectangleAnnotation();
string chartAreaName = sender.ChartAreas[0].Name;
rect.ClipToChartArea = chartAreaName;
rect.AxisXName = chartAreaName + "\\rX";
rect.YAxisName = chartAreaName + "\\rY";
rect.BackColor = Drawing.Color.Transparent;
rect.ForeColor = Drawing.Color.Transparent;
rect.IsSizeAlwaysRelative = false;
rect.LineColor = lineColor;
rect.LineWidth = lineWidth;
rect.LineDashStyle = lineStyle;
//Limit rectangle within chart area
Axis ptrAxis = sender.ChartAreas[0].AxisX;
if (x < ptrAxis.Minimum)
{
width = width - (ptrAxis.Minimum - x);
x = ptrAxis.Minimum;
}
else if (x > ptrAxis.Maximum)
{
width = width - (x - ptrAxis.Maximum);
x = ptrAxis.Maximum;
}
if ((x + width) > ptrAxis.Maximum)
{
width = ptrAxis.Maximum - x;
}
ptrAxis = sender.ChartAreas[0].AxisY;
if (y < ptrAxis.Minimum)
{
height = height - (ptrAxis.Minimum - y);
y = ptrAxis.Minimum;
}
else if (y > ptrAxis.Maximum)
{
height = height - (y - ptrAxis.Maximum);
y = ptrAxis.Maximum;
}
if ((y + height) > ptrAxis.Maximum)
{
height = ptrAxis.Maximum - y;
}
rect.X = x;
rect.Y = y;
rect.Width = width;
rect.Height = height;
rect.LineColor = lineColor;
sender.Annotations.Add(rect);
if (!string.IsNullOrEmpty(name))
{
rect.Name = name;
}
}
private void AddRectangleAnnotation()
{
// create a rectangle annotation
RectangleAnnotation annotation = new RectangleAnnotation();
// setup visual attributes
annotation.Text = "Attached to\nChart Picture";
annotation.BackColor = Color.FromArgb(255,255,192);
annotation.AnchorX = 30;
annotation.AnchorY = 25;
// prevent moving or selecting
annotation.AllowMoving = false;
annotation.AllowAnchorMoving = false;
annotation.AllowSelecting = false;
// add the annotation to the collection
Chart1.Annotations.Add(annotation);
}
private void AddThresholdAnnotation(Charting.Chart chart, string name, double threshold,
System.Drawing.Font font)
{
Charting.Axis axisX = chart.ChartAreas[0].AxisX;
Charting.Axis axisY = chart.ChartAreas[0].AxisY2;
Charting.StripLine stripLine = new Charting.StripLine ();
stripLine.StripWidth = 0.0;
stripLine.Interval = 0;
stripLine.BorderColor = System.Drawing.Color.Red;
stripLine.BorderDashStyle = Charting.ChartDashStyle.DashDotDot;
stripLine.IntervalOffset = threshold * 100.0;
axisY.StripLines.Add (stripLine);
Charting.RectangleAnnotation ta = new Charting.RectangleAnnotation ();
ta.Text = name;
ta.IsSizeAlwaysRelative = false;
ta.AxisX = axisX;
ta.AxisY = axisY;
ta.AnchorX = axisX.Maximum * (15.0 / 16.0);
ta.AnchorY = threshold * 100.0;
ta.Alignment = System.Drawing.ContentAlignment.MiddleCenter;
ta.AnchorAlignment = System.Drawing.ContentAlignment.MiddleCenter;
ta.ShadowOffset = 2;
ta.Font = font;
chart.Annotations.Add (ta);
}
/// <summary>
/// Adds an aspect ratio vertical line annotation.
/// </summary>
/// <param name="chart">The <see cref="Charting.Chart "/>.</param>
/// <param name="name">The annotation text.</param>
/// <param name="aspectRatio">The aspect ratio.</param>
/// <param name="font">The font.</param>
/// <param name="plotThresholds">if set to <c>true</c> plot threshold info.</param>
/// <param name="isCrossover">if set to <c>true</c> is a crossover annotation.</param>
private void AddARAnnotation(Charting.Chart chart, string name, double aspectRatio,
System.Drawing.Font font,
bool plotThresholds,
bool isCrossover = false)
{
Charting.StripLine stripLine = new Charting.StripLine();
stripLine.StripWidth = 0.0;
stripLine.Interval = 0;
if (isCrossover)
{
stripLine.BorderColor = System.Drawing.Color.Red;
stripLine.BorderDashStyle = Charting.ChartDashStyle.DashDotDot;
}
else
{
stripLine.BorderColor = System.Drawing.Color.Black;
stripLine.BorderDashStyle = Charting.ChartDashStyle.Dash;
}
stripLine.IntervalOffset = aspectRatio;
Charting.Axis axisX = chart.ChartAreas[0].AxisX;
Charting.Axis axisY = chart.ChartAreas[0].AxisY;
axisX.StripLines.Add (stripLine);
double yRange = (axisY.Maximum - axisY.Minimum);
Charting.RectangleAnnotation ta = new Charting.RectangleAnnotation();
ta.Text = name;
ta.IsSizeAlwaysRelative = false;
ta.AxisX = axisX;
ta.AxisY = axisY;
ta.AnchorX = aspectRatio;
ta.AnchorY = axisY.Minimum + yRange * (15.0/16.0);
ta.ShadowOffset = 2;
ta.Font = font;
if (isCrossover)
ta.ForeColor = System.Drawing.Color.Red;
chart.Annotations.Add (ta);
}
private void addErrorPoint(SkeletonJoint series, int x, double y, Statistics.MarkerType markerType)
{
String seriesName = JointDictionary.GetTranslation(series).name;
DataPoint newPoint = new DataPoint(x, y);
if (markerType == Statistics.MarkerType.FalseNegative)
{
EllipseAnnotation marker = new EllipseAnnotation();
marker.AnchorDataPoint = newPoint;
marker.AnchorAlignment = ContentAlignment.MiddleCenter;
marker.Width = 0.8;
marker.Height = 1.6;
marker.BackColor = markerColorFalsePositive;
marker.LineColor = Color.Black;
marker.LineWidth = 1;
AnnotationSmartLabelStyle markerLocation = new AnnotationSmartLabelStyle();
markerLocation.IsMarkerOverlappingAllowed = true;
markerLocation.IsOverlappedHidden = false;
markerLocation.MaxMovingDistance = 0;
markerLocation.MinMovingDistance = 0;
marker.SmartLabelStyle = markerLocation;
chartErrors.Annotations.Add(marker);
annotations[series].Add(marker);
}
if (markerType == Statistics.MarkerType.FalsePositive)
{
RectangleAnnotation marker = new RectangleAnnotation();
marker.AnchorDataPoint = newPoint;
marker.AnchorAlignment = ContentAlignment.MiddleCenter;
marker.Width = 0.8;
marker.Height = 1.6;
marker.BackColor = markerColorFalseNegative;
marker.LineColor = Color.Black;
marker.LineWidth = 1;
AnnotationSmartLabelStyle markerLocation = new AnnotationSmartLabelStyle();
markerLocation.IsMarkerOverlappingAllowed = true;
markerLocation.IsOverlappedHidden = false;
markerLocation.MaxMovingDistance = 0;
markerLocation.MinMovingDistance = 0;
marker.SmartLabelStyle = markerLocation;
chartErrors.Annotations.Add(marker);
annotations[series].Add(marker);
}
if (markerType == Statistics.MarkerType.NotAvailable)
{
EllipseAnnotation marker = new EllipseAnnotation();
marker.AnchorDataPoint = newPoint;
marker.AnchorAlignment = ContentAlignment.MiddleCenter;
marker.Width = 0.8;
marker.Height = 1.6;
marker.BackColor = markerColorNA;
marker.LineColor = Color.Black;
marker.LineWidth = 1;
AnnotationSmartLabelStyle markerLocation = new AnnotationSmartLabelStyle();
markerLocation.IsMarkerOverlappingAllowed = true;
markerLocation.IsOverlappedHidden = false;
markerLocation.MaxMovingDistance = 0;
markerLocation.MinMovingDistance = 0;
marker.SmartLabelStyle = markerLocation;
chartErrors.Annotations.Add(marker);
annotations[series].Add(marker);
}
Series insertionSeries = chartErrors.Series[seriesName];
int insertion_index = 0;
for (int index = 0; index < insertionSeries.Points.Count; index++)
{
if (insertionSeries.Points[index].XValue > x) break;
else insertion_index++;
}
chartErrors.Series[seriesName].Points.Insert(insertion_index, newPoint);
}
/// <summary>
/// Initialises the chart
/// </summary>
private void InitChart()
{
_mainChartArea.AxisX.ScaleView.Zoomable = true;
_mainChartArea.AxisY.ScaleView.Zoomable = true;
_mainChartArea.CursorX.AutoScroll = true;
_mainChartArea.CursorY.AutoScroll = true;
//_mainChartArea.AxisY2.Enabled = AxisEnabled.True;
_priceAnnotation = new RectangleAnnotation();
_priceAnnotation.ForeColor = Color.Black;
_priceAnnotation.Font = new Font("Arial", 9); ;
_priceAnnotation.LineWidth = 1;
_priceAnnotation.BackColor = Color.LemonChiffon;
chartCtrl.Annotations.Add(_priceAnnotation);
_maxPriceAnnotation = new CalloutAnnotation();
_maxPriceAnnotation.ForeColor = Color.Black;
_maxPriceAnnotation.Font = new Font("Arial", 9); ;
_maxPriceAnnotation.LineWidth = 1;
_maxPriceAnnotation.CalloutStyle = CalloutStyle.SimpleLine;
_maxPriceAnnotation.AnchorAlignment = ContentAlignment.BottomRight;
chartCtrl.Annotations.Add(_maxPriceAnnotation);
_minPriceAnnotation = new CalloutAnnotation();
_minPriceAnnotation.ForeColor = Color.Black;
_minPriceAnnotation.Font = new Font("Arial", 9); ;
_minPriceAnnotation.LineWidth = 1;
_minPriceAnnotation.CalloutStyle = CalloutStyle.SimpleLine;
_minPriceAnnotation.AnchorAlignment = ContentAlignment.MiddleRight;
_minPriceAnnotation.AxisX = _mainChartArea.AxisX;
_minPriceAnnotation.AxisY = _mainChartArea.AxisY;
chartCtrl.Annotations.Add(_minPriceAnnotation);
_currentPriceAnnotation = new ArrowAnnotation();
_currentPriceAnnotation.ForeColor = Color.Black;
_currentPriceAnnotation.Font = new Font("Arial", 9);
_currentPriceAnnotation.LineWidth = 1;
_currentPriceAnnotation.Width = 1;
_currentPriceAnnotation.Height = 1;
_currentPriceAnnotation.ArrowSize = 1;
_currentPriceAnnotation.AxisX = _mainChartArea.AxisX;
_currentPriceAnnotation.AxisY = _mainChartArea.AxisY;
_currentPriceAnnotation.ArrowSize = 3;
_currentPriceAnnotation.Height = 0;
_currentPriceAnnotation.AnchorAlignment = ContentAlignment.MiddleLeft;
//_currentPriceAnnotation.AnchorAlignment = ContentAlignment.MiddleRight;
chartCtrl.Annotations.Add(_currentPriceAnnotation);
// _mainChartArea.BackSecondaryColor = _mainChartArea.BackColor = Color.Black;
chartCtrl.Series[Constants.PriceSerieName]["PriceUpColorUp"] = "Green";
}
/// <summary>
/// Displays the history variation for the current statistics.
/// </summary>
/// <param name="history">The views history.</param>
/// <param name="axisX">The X axis.</param>
/// <param name="axisY">The Y axis.</param>
private void DisplayHistoryVariation(AjaxViewsHistory history, string axisX, string axisY)
{
if (null == history) return;
this.chart.Series.Clear();
this.chart.Annotations.Clear();
this.listViewDiscovery.Items.Clear();
// Update the chart.
Series series = new Series("Video {0}".FormatWith(this.textBox));
series.ChartType = SeriesChartType.Line;
series.XValueType = ChartValueType.DateTime;
series.YValueType = ChartValueType.Int32;
series.Font = new Font(this.Font.FontFamily, this.Font.Size, this.Font.Style);
series.MarkerStyle = MarkerStyle.Circle;
DateTime[] time = new DateTime[history.Series.Length - 1];
double[] popularity = new double[history.Series.Length - 1];
for (int index = 1; index < history.Series.Length; index++)
{
TimeSpan dx = history.Series[index].Time - history.Series[index - 1].Time;
time[index - 1] = new DateTime((history.Series[index].Time.Ticks + history.Series[index - 1].Time.Ticks) / 2);
double dy = history.Series[index].Value - history.Series[index - 1].Value;
popularity[index - 1] = dy / dx.TotalDays;
series.Points.AddXY(time[index - 1], popularity[index - 1]);
}
this.chart.Series.Add(series);
this.chart.ChartAreas[0].AxisX.Title = axisX;
this.chart.ChartAreas[0].AxisY.Title = axisY;
AjaxHistoryMarker? lastMarker = null;
RectangleAnnotation lastAnnotation = null;
// For all markers.
foreach (AjaxHistoryMarker marker in history.Markers)
{
// Get the history point closest to the marker.
AjaxHistoryPoint? point = history.GetPointAt(marker);
// If the point does not exist, continue.
if (null == point) continue;
// Get index of the point.
int index = Array.IndexOf<AjaxHistoryPoint>(history.Series, point.Value);
// If the index is not found, skip the point.
if (-1 == index) continue;
// If the index is greater than the number of popularity points, limit the index to the size of the popularity array.
if (index >= popularity.Length) index = popularity.Length - 1;
// If the last marker and last annotation exist.
if ((lastMarker != null) && (lastAnnotation != null))
{
// If the last marker has the same date with the current one, only update the annotation text.
if (lastMarker.Value.Time == marker.Time)
{
lastAnnotation.Text += " " + marker.Name;
continue;
}
}
RectangleAnnotation rect = new RectangleAnnotation();
rect.Text = marker.Name;
rect.ForeColor = Color.Black;
rect.AxisX = this.chart.ChartAreas[0].AxisX;
rect.AxisY = this.chart.ChartAreas[0].AxisY;
rect.AnchorX = time[index].ToOADate();
rect.AnchorY = popularity[index];
rect.AnchorOffsetX = 0;
rect.AnchorOffsetY = 5;
rect.ShadowColor = Color.Gray;
rect.ShadowOffset = 5;
VerticalLineAnnotation line = new VerticalLineAnnotation();
line.AxisX = this.chart.ChartAreas[0].AxisX;
line.AxisY = this.chart.ChartAreas[0].AxisY;
line.AnchorX = time[index].ToOADate();
line.AnchorY = popularity[index];
line.Height = -5;
this.chart.Annotations.Add(line);
this.chart.Annotations.Add(rect);
this.chart.ResetAutoValues();
lastAnnotation = rect;
lastMarker = marker;
}
// Add discovery events.
foreach (KeyValuePair<string, AjaxViewsHistoryDiscoveryEvent> evt in history.DiscoveryEvents)
{
ListViewItem item = new ListViewItem(new string[] {
evt.Value.Name,
evt.Value.Marker != null ? evt.Value.Marker.Value.Time.ToString() : "Unknown",
AjaxViewsHistoryDiscoveryEvent.GetTypeDescription(evt.Value.Type),
evt.Value.Extra != null ? evt.Value.Extra : string.Empty }, 0);
item.Tag = evt.Value;
this.listViewDiscovery.Items.Add(item);
}
}
/// <summary>
/// Displays the history for the current statistics.
/// </summary>
/// <param name="history">The views history.</param>
/// <param name="axisX">The X axis.</param>
/// <param name="axisY">The Y axis.</param>
private void DisplayHistory(AjaxViewsHistory history, string axisX, string axisY)
{
if (null == history) return;
this.chart.Series.Clear();
this.chart.Annotations.Clear();
this.listViewDiscovery.Items.Clear();
// Update the chart.
Series series = new Series("Video {0}".FormatWith(this.textBox));
series.ChartType = SeriesChartType.Line;
series.XValueType = ChartValueType.DateTime;
series.YValueType = ChartValueType.Int32;
series.Font = new Font(this.Font.FontFamily, this.Font.Size, this.Font.Style);
series.MarkerStyle = MarkerStyle.Circle;
foreach (AjaxHistoryPoint point in history.Series)
series.Points.AddXY(point.Time, point.Value);
this.chart.Series.Add(series);
this.chart.ChartAreas[0].AxisX.Title = axisX;
this.chart.ChartAreas[0].AxisY.Title = axisY;
AjaxHistoryMarker? lastMarker = null;
RectangleAnnotation lastAnnotation = null;
// For all markers.
foreach (AjaxHistoryMarker marker in history.Markers)
{
// Get the history point closest to the marker.
AjaxHistoryPoint? point = history.GetPointAt(marker);
// If the point does not exist, continue.
if (null == point) continue;
// If the last marker and last annotation exist.
if ((lastMarker != null) && (lastAnnotation != null))
{
// If the last marker has the same date with the current one, only update the annotation text.
if (lastMarker.Value.Time == marker.Time)
{
lastAnnotation.Text += " " + marker.Name;
continue;
}
}
RectangleAnnotation rect = new RectangleAnnotation();
rect.Text = marker.Name;
rect.ForeColor = Color.Black;
rect.AxisX = this.chart.ChartAreas[0].AxisX;
rect.AxisY = this.chart.ChartAreas[0].AxisY;
rect.AnchorX = marker.Time.ToOADate();
rect.AnchorY = point.Value.Value;
rect.AnchorOffsetX = 0;
rect.AnchorOffsetY = 5;
rect.ShadowColor = Color.Gray;
rect.ShadowOffset = 5;
VerticalLineAnnotation line = new VerticalLineAnnotation();
line.AxisX = this.chart.ChartAreas[0].AxisX;
line.AxisY = this.chart.ChartAreas[0].AxisY;
line.AnchorX = marker.Time.ToOADate();
line.AnchorY = point.Value.Value;
line.Height = -5;
this.chart.Annotations.Add(line);
this.chart.Annotations.Add(rect);
this.chart.ResetAutoValues();
lastAnnotation = rect;
lastMarker = marker;
}
// Add discovery events.
foreach (KeyValuePair<string, AjaxViewsHistoryDiscoveryEvent> evt in history.DiscoveryEvents)
{
ListViewItem item = new ListViewItem(new string[] {
evt.Value.Name,
evt.Value.Marker != null ? evt.Value.Marker.Value.Time.ToString() : "Unknown",
AjaxViewsHistoryDiscoveryEvent.GetTypeDescription(evt.Value.Type),
evt.Value.Extra != null ? evt.Value.Extra : string.Empty }, 0);
item.Tag = evt.Value;
this.listViewDiscovery.Items.Add(item);
}
}
