protected override void LayoutYValueLabels()
{
ChartModel model = Model;
double marginLeft = MarginLeft, marginTop = MarginTop;
double gridWidth = (ChartCanvas.Width - marginLeft - MarginRight);
double gridHeight = (ChartCanvas.Height - marginTop - MarginBottom);
double cx = marginLeft + gridWidth / 2, cy = marginTop + gridHeight / 2.0;
double radius = Math.Min(gridWidth, gridHeight) / 2.0;
int vLineCount = this.GetVLineCount(), circleCount = this.GetHLineCount();
double minValue = model.MinYValue, maxValue = model.MaxYValue;
string labelXAML = CurrentLookAndFeel.GetYValueLabelXAML();
double textHeight = double.NaN;
_addRadarYLabelAt(labelXAML, cx, (double)marginTop, ref textHeight, maxValue);
_addRadarYLabelAt(labelXAML, cx, cy, ref textHeight, minValue);
// horizontal lines
for (int i = 0; i < circleCount - 1; ++i)
{
double newRadius = (i + 1) * radius / (double)circleCount;
double value = ((maxValue - minValue) * (i + 1) / (double)circleCount) + minValue;
this._addRadarYLabelAt(labelXAML, cx,
radius - newRadius + marginTop, ref textHeight, value);
}
}
protected virtual void SetIndicatorPosition(double yValue, UIElement indicator, double ratio)
{
double theta, cx = _animCenter.X, cy = _animCenter.Y;
ChartModel model = Model;
double minValue = model.MinYValue,
maxValue = model.MaxYValue;
double valueRatio = ratio * (yValue - minValue) / (maxValue - minValue);
theta = Math.PI / 6 + valueRatio * (5 * Math.PI / 3);
if (theta < Math.PI / 2)
{
theta += 3 * Math.PI / 2;
}
else
{
theta -= Math.PI / 2;
}
theta *= 180 / Math.PI;
RotateTransform rt = new RotateTransform();
rt.CenterX = cx;
rt.CenterY = cy;
rt.Angle = theta;
indicator.RenderTransform = rt;
}
protected override void LayoutGroupLabels()
{
ChartModel model = Model;
double marginLeft = MarginLeft, marginTop = MarginTop;
double gridWidth = (ChartCanvas.Width - marginLeft - MarginRight);
double gridHeight, cy = 0;
double cx = marginLeft + gridWidth / 2, radius = 0;
string [] groupLabels = model.GroupLabels;
int vLineCount = groupLabels.Length;
TextBlock labelElem;
double groupWidth = gridWidth / (double)vLineCount;
Canvas container = HLabelContainer;
UIElementCollection childNodes = container.Children;
bool firstLabelDrawn = false;
TextBlock[] gLabelElems = GroupLabelElems;
if (childNodes.Count == 0)
{
return;
}
for (int i = 0; i < vLineCount; ++i)
{
labelElem = gLabelElems[i];
if (labelElem == null)
{
continue;
}
if (!firstLabelDrawn)
{
gridHeight = (ChartCanvas.Height - marginTop - MarginBottom);
cy = marginTop + gridHeight / (double)2;
radius = Math.Min(gridWidth, gridHeight) / (double)2 +
labelElem.ActualHeight - _TEXT_MARGIN / (double)2;
firstLabelDrawn = true;
}
double theta = (i) * 2 * Math.PI / (double)vLineCount;
double dx = cx + radius * Math.Sin(theta),
dy = cy - radius * Math.Cos(theta);
labelElem.SetValue(Canvas.TopProperty, dy - labelElem.ActualHeight / (double)2);
if (theta > Math.PI)
{
dx -= labelElem.ActualWidth;
}
labelElem.SetValue(Canvas.LeftProperty, dx);
}
}
/// <summary>
/// Draws the dial for the gauge and returns the actual size of the gauge
/// </summary>
/// <param name="gaugeContainer"></param>
/// <param name="quadWidth"></param>
/// <param name="quadHeight"></param>
/// <param name="iGroup"></param>
/// <returns></returns>
protected virtual Size DrawDial(
Canvas gaugeContainer,
double quadWidth,
double quadHeight,
int iGroup)
{
ChartModel model = Model;
if (iGroup == -1)
{
iGroup = 0;
}
List <UIElement> dataElems = DataElements;
bool animate = (AnimationDuration > 0);
Canvas gauge = XamlReader.Load(GetGaugeXAML()) as Canvas;
gaugeContainer.Children.Add(gauge);
double gaugeWidth = gauge.Width, gaugeHeight = gauge.Height;
double gaugeR = gaugeWidth / 2;
Canvas indicator = gauge.FindName("indicator") as Canvas;
SetExpandosOnElement(indicator, iGroup, 0, new Point());
if (DisplayToolTip)
{
indicator.MouseEnter += new MouseEventHandler(ShowToolTip);
indicator.MouseLeave += new MouseEventHandler(HideToolTip);
}
indicator.MouseLeftButtonUp += new MouseButtonEventHandler(ChartDataClicked);
if (_animCenter.X == 0)
{
_animCenter.X = _animCenter.Y = indicator.Width / 2;
}
if (animate)
{
dataElems.Add(indicator);
}
else
{
// If there is no animation lets move the indicators to the last position
SetIndicatorPosition(model.YValues[iGroup, 0], indicator, 1);
}
CreateTextMarkerGroup(gauge, gaugeR);
return(ScaleGauge(gauge, quadWidth, quadHeight, gaugeWidth, gaugeHeight));
}
protected override ChartEventArgs GetChartEvent(object sender, MouseEventArgs e)
{
Point pt = e.GetPosition(ChartCanvas);
ElementExpandos ee = Expandos[sender];
int i = ee.SeriesIndex;
bool isPerspective = IsPerspective;
double yOffset = YOffsetPerspective;
ChartModel model = Model;
double[,] xValues = model.XValues;
double[,] yValues = model.YValues;
int nValues = yValues.GetUpperBound(0) + 1;
double minYValue = model.MinYValue, maxYValue = model.MaxYValue;
double minXValue = model.MinXValue, maxXValue = model.MaxXValue;
double marginLeft = MarginLeft, marginTop = MarginTop;
double gridWidth = (ChartCanvas.Width - marginLeft - MarginRight);
double gridHeight = (ChartCanvas.Height - marginTop - MarginBottom);
double gridBottom = gridHeight + marginTop + (isPerspective?yOffset:0);
double dx, dy, xValue = 0.0, yValue = 0.0;
double nextdy, nextdx;
for (int j = 0; j < nValues; ++j)
{
if (j != nValues - 1)
{
dx = marginLeft + gridWidth * (xValues[j, i] - minXValue) / (maxXValue - minXValue);
nextdx = marginLeft + gridWidth * (xValues[j + 1, i] - minXValue) / (maxXValue - minXValue);
if (pt.X > dx && pt.X < (dx + nextdx))
{
dy = gridBottom - gridHeight * (yValues[j, i] - minYValue) / (maxYValue - minYValue);
nextdy = gridBottom -
gridHeight * (yValues[j + 1, i] - minYValue) / (maxYValue - minYValue);
yValue = yValues[j, i] + (yValues[j + 1, i] - yValues[j, i]) * (pt.Y - dy) / (nextdy - dy);
xValue = xValues[j, i] + (xValues[j + 1, i] - xValues[j, i]) * (pt.X - dx) / (nextdx - dx);
break;
}
}
}
int[] seriesIndices = { i };
//double[] yEventValues = {yValue};
//double[] xEventValues = {xValue};
return(new ChartEventArgs(seriesIndices, null, new double[] { yValue }, new double[] { xValue }));
}
public override void SetDataAnimStep(double ratio)
{
double marginLeft = MarginLeft, marginTop = MarginTop;
bool isRadarArea = (Type == Chart.ChartType.RADAR_AREA);
ChartModel model = Model;
string [] seriesLabels = model.SeriesLabels;
int seriesCount = seriesLabels.Length;
double gridWidth = (ChartCanvas.Width - marginLeft - MarginRight);
double gridHeight = (ChartCanvas.Height - marginTop - MarginBottom);
double cx = marginLeft + gridWidth / 2.0, cy = marginTop + gridHeight / 2.0;
double newRatio = ratio * (double)seriesCount;
int animSeriesIndex = 0;
if (newRatio > 1)
{
animSeriesIndex = (int)Math.Floor(newRatio);
if (animSeriesIndex >= seriesCount)
{
animSeriesIndex = seriesCount - 1;
}
newRatio = newRatio - (int)Math.Floor(newRatio);
}
double tx = (1 - newRatio) * cx, ty = (1 - newRatio) * cy;
Matrix m = new Matrix(newRatio, 0, 0, newRatio, tx, ty);
// We will make each series appear separately
int i = animSeriesIndex;
this._setRadarSeriesAnimStep(i, isRadarArea, m);
if (i > 0)
{
_setRadarSeriesAnimStep(i - 1, isRadarArea, Matrix.Identity);
}
// make sure that everything is scaled properly at the end
if (ratio == 1)
{
for (int j = 0; j < seriesCount; ++j)
{
_setRadarSeriesAnimStep(j, isRadarArea, Matrix.Identity);
}
_dotElements = null;
}
}
protected override void DrawGroupLabels()
{
ChartModel model = Model;
Canvas container = new Canvas();
HLabelContainer = container;
List <UIElement> labelElems = LabelElements;
bool animate = (AnimationDuration > 0);
string[] groupLabels = model.GroupLabels;
int vLineCount = groupLabels.Length;
TextBlock labelElem;
string labelText;
string labelXAML = CurrentLookAndFeel.GetGroupLabelXAML();
double maxWidth = 0, maxHeight = 0;
TextBlock [] gLabelElems = new TextBlock[vLineCount];
GroupLabelElems = gLabelElems;
for (int i = 0; i < vLineCount; ++i)
{
labelText = groupLabels[i];
if (labelText == null || labelText.Length == 0)
{
continue;
}
labelElem = XamlReader.Load(labelXAML) as TextBlock;
if (animate)
{
labelElems.Add(labelElem);
labelElem.Opacity = 0;
}
labelElem.Text = labelText;
container.Children.Add(labelElem);
gLabelElems[i] = labelElem;
maxWidth = Math.Max(maxWidth, labelElem.ActualWidth);
maxHeight = Math.Max(maxHeight, labelElem.ActualHeight);
}
ChartCanvas.Children.Add(container);
HLabelBounds = new Size(maxWidth, maxHeight);
}
protected override Size FillToolTipData(
object sender,
MouseEventArgs e,
Path boundingRectElem,
Path circleElem)
{
ChartEventArgs chartEvent = GetChartEvent(sender, e);
int i = chartEvent.SeriesIndices[0];
double yValue = chartEvent.YValues[0],
xValue = chartEvent.XValues[0];
ChartModel model = Model;
string[] seriesLabels = model.SeriesLabels;
TextBlock textElem = ToolTip.Children[2] as TextBlock;
textElem.Text = seriesLabels[i] + ": (" + xValue.ToString(Format) + ") (" + yValue.ToString() + ")";
double labelWidth = textElem.ActualWidth;
double labelHeight = textElem.ActualHeight;
//We do not need the next label
textElem = ToolTip.Children[3] as TextBlock;
textElem.Text = "";
double rectWidth = labelWidth + 2 * _TEXT_MARGIN;
RectangleGeometry rg = boundingRectElem.Data as RectangleGeometry;
Rect rect = rg.Rect;
double rectHeight = rect.Height;
if (rectHeight > 2 * labelHeight)
{
rectHeight -= labelHeight;
}
rg.Rect = new Rect(rect.X, rect.Y, rectWidth, rectHeight);
boundingRectElem.SetValue(Path.StrokeProperty, new SolidColorBrush(Model.SeriesColors[i]));
EllipseGeometry eg = circleElem.Data as EllipseGeometry;
eg.RadiusX = eg.RadiusY = 0;
return(new Size(rectWidth, 2 * (labelHeight + _TEXT_MARGIN)));
}
protected override ChartEventArgs GetChartEvent(object sender, MouseEventArgs e)
{
Point pt = e.GetPosition(ChartCanvas);
ElementExpandos ee = Expandos[sender];
int i = ee.SeriesIndex;
bool isPerspective = IsPerspective;
double yOffset = YOffsetPerspective;
ChartModel model = Model;
double [,] yValues = model.YValues;
string [] groupLabels = model.GroupLabels;
int groupCount = groupLabels.Length;
double marginLeft = MarginLeft, marginTop = MarginTop;
double gridWidth = (ChartCanvas.Width - marginLeft - MarginRight);
double gridHeight = (ChartCanvas.Height - marginTop - MarginBottom);
int yValueCount = yValues.GetUpperBound(0) + 1;
double barWidth = (gridWidth / Math.Max(yValueCount, groupCount));
double gridBottom = gridHeight + marginTop + (isPerspective?yOffset:0);
double dx = marginLeft + barWidth / 2, value = 0.0;
for (int j = 0; j < yValueCount; ++j)
{
if (j == yValueCount - 1)
{
continue;
}
if (pt.X > dx && pt.X < (dx + barWidth))
{
value = yValues[j, i] + (yValues[j + 1, i] - yValues[j, i]) * (pt.X - dx) / barWidth;
break;
}
dx += barWidth;
}
int[] seriesIndices = { i };
double[] values = { value };
return(new ChartEventArgs(seriesIndices, null, values, null));
}
public override void SetDataAnimStep(double ratio)
{
List <UIElement> animElems = DataElements;
int animCount = animElems.Count;
ChartModel model = Model;
double[,] yValues = Model.YValues;
for (int i = 0; i < animCount; ++i)
{
// For Dial Chart only one value is applicable
double yValue = yValues[i, 0];
SetIndicatorPosition(yValue, animElems[i], ratio);
}
}
protected override void SetIndicatorPosition(double yValue, UIElement indicator, double ratio)
{
double cx = _animCenter.X, cy = _animCenter.Y;
ChartModel model = Model;
double minValue = model.MinYValue,
maxValue = model.MaxYValue;
double valueRatio = ratio * (yValue - minValue) / (maxValue - minValue);
double theta = valueRatio * Math.PI;
theta *= 180 / Math.PI;
RotateTransform rt = new RotateTransform();
rt.CenterX = cx;
rt.CenterY = cy;
rt.Angle = theta;
indicator.RenderTransform = rt;
}
public override void DrawChartData()
{
var rootElem = ChartCanvas;
// calculate the number of rows and columns
ChartModel model = Model;
double[,] yValues = model.YValues;
int yValueCount = yValues.GetUpperBound(0) + 1;
string[] groupLabels = model.GroupLabels;
int groupCount = groupLabels != null?groupLabels.Length:1;
int nCols = (int)Math.Ceiling(Math.Sqrt(yValueCount)), nRows = (int)Math.Round(Math.Sqrt(yValueCount));
string labelXAML = CurrentLookAndFeel.GetGroupLabelXAML();
TextBlock labelElem = null;
double dx = MarginLeft, dy = MarginTop;
double quadWidth = (rootElem.Width - dx - MarginRight) / nCols;
bool animate = (AnimationDuration > 0);
double vGap = 2 * _TEXT_MARGIN;
var quadHeight = (rootElem.Height - MarginTop - MarginBottom - (nRows - 1) * vGap) / nRows;
if (animate)
{
_pieAnimAngles = new List <double>();
_pieAnimRadii = new List <double>();
}
for (int i = 0; i < nRows; ++i)
{
for (int j = 0; j < nCols; ++j)
{
int iGroup = (groupLabels != null)?(i * nCols + j):(-1);
if (iGroup >= yValueCount)
{
break;
}
string groupLabel = (iGroup == -1)?null:groupLabels[iGroup];
Canvas pieContainer = new Canvas();
rootElem.Children.Add(pieContainer);
double newHeight = DrawGroupLabelTitle(groupLabel, rootElem, labelXAML, ref labelElem,
dx, dy, quadWidth, quadHeight);
double newWidth = quadWidth - 2 * _TEXT_MARGIN;
double cx = dx + quadWidth / 2 + _TEXT_MARGIN, cy = dy + newHeight / 2;
if (animate)
{
_pieAnimRadii.Add(Math.Max(cx, cy));
}
if (IsPerspective)
{
this._draw3DPies(pieContainer, newWidth, newHeight, iGroup);
MatrixTransform mt = new MatrixTransform();
mt.Matrix = new Matrix(1, 0, 0, .707, cx, cy);
// The chart is draw with the center at 0 so we need to compensate for it.
pieContainer.RenderTransform = mt;
}
else
{
this._drawPies(pieContainer, newWidth, newHeight, iGroup);
TranslateTransform tt = new TranslateTransform();
tt.X = cx;
tt.Y = cy;
pieContainer.RenderTransform = tt;
}
dx += quadWidth;
}
dx = MarginLeft;
dy += quadHeight + vGap;
}
}
public PieChart(ChartType type, ChartModel model) : base(type, model)
{
}
public ScatterPlotChart(ChartType type, ChartModel model) : base(type, model)
{
}
protected virtual void CreateTextMarkerGroup(Canvas gauge, double gaugeR)
{
ChartModel model = Model;
Canvas gElem = new Canvas();
gauge.Children.Add(gElem);
LookAndFeel lf = CurrentLookAndFeel;
int majorMarkerCount = YMajorGridCount;
int minorMarkerCount = YMinorGridCount;
string majorMarkerXAML = lf.GetGauageMarkerMajorXAML(),
minorMarkerXAML = lf.GetGauageMarkerMinorXAML();
string textXAML = lf.GetGauageTextXAML();
TextBlock textElem;
Canvas markerContainerCanvas = gauge.FindName("markerContainer") as Canvas;
double markerContainerR = markerContainerCanvas.Width / 2;
double minValue = model.MinYValue, maxValue = model.MaxYValue;
double x, y, angle, textMargin = 0.0;
double theta = Math.PI / 6;
for (int i = 0;
i <= majorMarkerCount; ++i, theta += (5.0 * Math.PI / 3.0) / majorMarkerCount)
{
double adjustedTheta;
if (theta < Math.PI / 2)
{
adjustedTheta = theta + 3.0 * Math.PI / 2.0;
}
else
{
adjustedTheta = theta - Math.PI / 2.0;
}
x = gaugeR - markerContainerR * (Math.Cos(adjustedTheta));
y = gaugeR - markerContainerR * (Math.Sin(adjustedTheta));
angle = adjustedTheta * 180 / Math.PI;
Path marker = XamlReader.Load(majorMarkerXAML) as Path;
TransformGroup tg = new TransformGroup();
TranslateTransform tt = new TranslateTransform();
RotateTransform rt = new RotateTransform();
tt.X = x;
tt.Y = y;
rt.Angle = angle;
tg.Children.Add(rt);
tg.Children.Add(tt);
marker.RenderTransform = tg;
gElem.Children.Add(marker);
double value = minValue + i * (maxValue - minValue) / (majorMarkerCount);
textElem = XamlReader.Load(textXAML) as TextBlock;
textElem.Text = value.ToString(Format);
if (i == 0)
{
textMargin = textElem.ActualHeight / 2;
}
x = gaugeR - (markerContainerR - textMargin) * (Math.Cos(adjustedTheta));
y = gaugeR - (markerContainerR - textMargin) * (Math.Sin(adjustedTheta));
if (theta >= 5 * Math.PI / 6 && theta <= 7 * Math.PI / 6)
{
x -= textElem.ActualWidth / 2;
}
else
{
y -= textElem.ActualHeight / 2;
if (theta < Math.PI)
{
x += 2 * _TEXT_MARGIN;
}
else
{
x -= textElem.ActualWidth + 2 * _TEXT_MARGIN;
}
}
tt = new TranslateTransform();
tt.X = x;
tt.Y = y;
textElem.RenderTransform = tt;
gElem.Children.Add(textElem);
}
theta = Math.PI / 6 + (5 * Math.PI / 3) / (majorMarkerCount * minorMarkerCount);
for (int i = (minorMarkerCount + 1);
i <= (majorMarkerCount + 1) * minorMarkerCount;
++i, theta += (5 * Math.PI / 3) / (majorMarkerCount * minorMarkerCount))
{
if (i % minorMarkerCount == 0)
{
continue;
}
double adjustedTheta;
if (theta < Math.PI / 2)
{
adjustedTheta = theta + 3 * Math.PI / 2;
}
else
{
adjustedTheta = theta - Math.PI / 2;
}
x = gaugeR - markerContainerR * (Math.Cos(adjustedTheta));
y = gaugeR - markerContainerR * (Math.Sin(adjustedTheta));
angle = adjustedTheta * 180 / Math.PI;
Path marker = XamlReader.Load(minorMarkerXAML) as Path;
TransformGroup tg = new TransformGroup();
TranslateTransform tt = new TranslateTransform();
RotateTransform rt = new RotateTransform();
tt.X = x;
tt.Y = y;
rt.Angle = angle;
tg.Children.Add(rt);
tg.Children.Add(tt);
marker.RenderTransform = tg;
gElem.Children.Add(marker);
}
}
private void _drawPerspectiveBars(int mod, int rem)
{
bool animate = (this.AnimationDuration > 0);
double xOffset = XOffsetPerspective, yOffset = YOffsetPerspective;
double marginLeft = MarginLeft, marginTop = MarginTop;
double marginRight = MarginRight, marginBottom = MarginBottom;
double gridWidth = (ChartCanvas.Width - marginLeft - marginRight - xOffset);
double gridHeight = (ChartCanvas.Height - marginTop - marginBottom - yOffset);
LookAndFeel lf = CurrentLookAndFeel;
string pathXAML = lf.GetBarPathXAML();
Path pathElem;
List <UIElement> dataElems = null;
MatrixTransform defaultTransform = null;
if (animate)
{
dataElems = DataElements;
}
int barItemPadding = _BARITEM_PADDING;
bool isStacked = (Type == ChartType.HBAR_STACKED);
ChartModel model = Model;
string[] groupLabels = model.GroupLabels;
int groupCount = groupLabels.Length;
string[] seriesLabels = model.SeriesLabels;
int seriesCount = seriesLabels.Length;
Color[] seriesColors = model.SeriesColors;
double[,] yValues = model.YValues;
double minValue = model.MinYValue, maxValue = model.MaxYValue;
// For combo graphs we display every once in mod
int seriesBars = (mod > 1) ? (int)Math.Ceiling(1 / (double)mod) : seriesCount;
int yValueCount = yValues.GetUpperBound(0) + 1;
double barHeight, stackBase = minValue;
if (isStacked)
{
barHeight = gridHeight / Math.Max(yValueCount, groupCount) - 2 * barItemPadding;
}
else
{
barHeight = (gridHeight / Math.Max(yValueCount, groupCount)
- 2 * barItemPadding - (seriesCount) * barItemPadding) / seriesBars;
}
double dx = marginLeft, dy = gridHeight + marginTop + yOffset, barWidth;
string gradientXAML = lf.GetElementGradientXAML();
for (int i = 0; i < yValueCount; ++i)
{
dy -= barItemPadding;
dx = marginLeft;
for (var j = 0; j < seriesCount; ++j)
{
// for combo charts we draw a bar every once in a mod.
if ((mod > 1) && j % mod != rem)
{
continue;
}
// If we use non zero min and it is a stacked graph, we need to remove the min for only
// the first series.
if (isStacked)
{
stackBase = (j == 0 ? minValue : 0);
}
barWidth = gridWidth * (yValues[i, j] - stackBase) / (maxValue - minValue);
StringBuilder sb = new StringBuilder();
sb.Append("M").Append(dx).Append(",").Append(dy);
sb.Append(" h").Append(barWidth);
sb.Append(" v").Append(-barHeight);
sb.Append(" h").Append(-barWidth);
sb.Append(" v").Append(barHeight);
sb.Append(" M").Append(dx).Append(",").Append(dy - barHeight);
sb.Append(" l").Append(xOffset).Append(",").Append(-yOffset);
sb.Append(" h").Append(barWidth);
sb.Append(" l").Append(-xOffset).Append(",").Append(yOffset);
sb.Append(" z");
sb.Append(" M").Append(dx + barWidth).Append(",").Append(dy);
sb.Append(" v").Append(-barHeight);
sb.Append(" l").Append(xOffset).Append(",").Append(-yOffset);
sb.Append(" v").Append(barHeight);
sb.Append(" z");
pathElem = CreatePathFromXAMLAndData(lf.GetBarPathXAML(), sb);
if (animate)
{
dataElems.Add(pathElem);
defaultTransform = new MatrixTransform();
Matrix m = new Matrix();
m.M11 = 0.0;
defaultTransform.Matrix = m;
pathElem.SetValue(UIElement.RenderTransformProperty, defaultTransform);
}
pathElem.SetValue(Path.StrokeProperty, new SolidColorBrush(seriesColors[j]));
if (gradientXAML != null)
{
SetGradientOnElement(pathElem, gradientXAML, seriesColors[j], 0xe5);
}
else
{
SetFillOnElement(pathElem, seriesColors[j]);
}
SetExpandosOnElement(pathElem, i, j, new Point(dx + barWidth + (xOffset) / 2.0, dy - (barHeight + yOffset) / 2.0));
if (DisplayToolTip)
{
pathElem.MouseEnter += new MouseEventHandler(ShowToolTip);
pathElem.MouseLeave += new MouseEventHandler(HideToolTip);
}
pathElem.MouseLeftButtonUp += new MouseButtonEventHandler(ChartDataClicked);
ChartCanvas.Children.Add(pathElem);
if (isStacked)
{
dx += barWidth;
}
else
{
dy -= barHeight;
dy -= barItemPadding;
}
}
if (isStacked)
{
dy -= barHeight;
}
dy -= barItemPadding;
}
}
public AreaChart(ChartType type, ChartModel model) : base(type, model)
{
}
public override void DrawChartData()
{
if (YMinorGridCount < 0)
{
YMinorGridCount = 4;
}
var rootCanvas = ChartCanvas;
// calculate the number of rows and columns
ChartModel model = Model;
double[,] yValues = model.YValues;
int yValueCount = yValues.GetUpperBound(0) + 1;
string [] groupLabels = model.GroupLabels;
int groupCount = (groupLabels != null)?groupLabels.Length:1;
int nCols = (int)Math.Ceiling(Math.Sqrt(yValueCount)), nRows = (int)Math.Round(Math.Sqrt(yValueCount));
double dx = MarginLeft, dy = MarginTop;
double quadWidth = (rootCanvas.Width - MarginLeft - MarginRight) / nCols;
double vGap = 2 * _TEXT_MARGIN;
double quadHeight = (rootCanvas.Height - MarginTop - MarginBottom - (nRows - 1) * vGap) / nRows;
string labelXAML = CurrentLookAndFeel.GetGroupLabelXAML();
TextBlock labelElem = null;
for (int i = 0; i < nRows; ++i)
{
for (int j = 0; j < nCols; ++j)
{
int iGroup = groupLabels != null?(i * nCols + j):(-1);
if (iGroup >= yValueCount)
{
break;
}
string groupLabel = (iGroup == -1)?null:groupLabels[iGroup];
Canvas gaugeContainer = new Canvas();
rootCanvas.Children.Add(gaugeContainer);
if (groupLabel != null)
{
labelElem = XamlReader.Load(labelXAML) as TextBlock;
}
double newHeight = DrawGroupLabelTitle(groupLabel, rootCanvas, labelXAML, ref labelElem,
dx, dy, quadWidth, quadHeight);
double newWidth = quadWidth - 2 * _TEXT_MARGIN;
Size gaugeSize = DrawDial(gaugeContainer, newWidth, newHeight, iGroup);
TranslateTransform tt = new TranslateTransform();
tt.X = (dx + _TEXT_MARGIN);
tt.Y = dy;
gaugeContainer.RenderTransform = tt;
if (groupLabel != null)
{
if (gaugeSize.Height < newHeight - vGap)
{
var newY = (double)labelElem.GetValue(Canvas.TopProperty);
newY -= (newHeight - gaugeSize.Height) / 2 - vGap;
labelElem.SetValue(Canvas.TopProperty, newY);
}
}
dx += quadWidth;
}
dx = MarginLeft;
dy += quadHeight + vGap;
}
}
protected override ChartEventArgs GetChartEvent(object sender, MouseEventArgs e)
{
Point pt = e.GetPosition(ChartCanvas);
bool isStacked = (Type == ChartType.AREA_STACKED);
ChartModel model = Model;
bool isPerspective = IsPerspective;
double xOffset = XOffsetPerspective, yOffset = YOffsetPerspective;
string [] groupLabels = model.GroupLabels;
int groupCount = groupLabels.Length;
double[,] yValues = model.YValues;
double minValue = model.MinYValue, maxValue = model.MaxYValue;
int yValueCount = yValues.GetUpperBound(0) + 1;
double marginLeft = MarginLeft, marginTop = MarginTop;
double gridWidth = (ChartCanvas.Width - marginLeft - MarginRight);
double gridHeight = (ChartCanvas.Height - marginTop - MarginBottom);
double barWidth = (gridWidth / (Math.Max(yValueCount, groupCount)));
if (isPerspective)
{
gridWidth -= xOffset;
gridHeight -= yOffset;
}
if (pt.X < marginLeft ||
pt.X > (marginLeft + gridWidth + (isPerspective?xOffset:0)) ||
pt.Y < marginTop ||
pt.Y > (marginTop + gridHeight + (isPerspective?yOffset:0)))
{
return(null);
}
int seriesCount = model.SeriesLabels.Length;
double stackBase;
bool insideStacked = false;
double dx, dy, dy1, dy2, value;
List <int> seriesIndices = new List <int>(seriesCount);
List <double> seriesValues = new List <double>(seriesCount);
double[] cumYs = isStacked? new double[yValueCount] : null;
if (isStacked)
{
cumYs = new double[yValueCount];
for (int j = 0; j < yValueCount; ++j)
{
cumYs[j] = double.NaN;
}
}
double gridBottom = gridHeight + marginTop + (isPerspective?yOffset:0);
_seriesYs = new List <double>(seriesCount);
for (int i = 0; i < seriesCount && !insideStacked; ++i)
{
// for combo charts we draw a bar every once in a mod.
if ((_mod > 1) && (i % _mod) != _rem)
{
continue;
}
dx = marginLeft + barWidth / 2;
stackBase = (i == 0?minValue:0);
for (int j = 0; j < yValueCount; ++j)
{
if (isStacked)
{
if (double.IsNaN(cumYs[j]))
{
cumYs[j] = gridBottom;
}
if ((j != yValueCount - 1) && double.IsNaN(cumYs[j + 1]))
{
cumYs[j + 1] = gridBottom;
}
cumYs[j] -= gridHeight * (yValues[j, i] - stackBase) / (maxValue - minValue);
}
if (j == yValueCount - 1)
{
continue;
}
if (pt.X > dx && pt.X < (dx + barWidth))
{
if (isStacked)
{
dy1 = cumYs[j];
dy2 = (cumYs[j + 1] - gridHeight * (yValues[j + 1, i] - stackBase) / (maxValue - minValue));
dy = dy1 - (dy1 - dy2) * (pt.X - dx) / barWidth;
if (pt.Y >= dy)
{
value = yValues[j, i] + (yValues[j + 1, i] - yValues[j, i]) * (pt.X - dx) / barWidth;
seriesValues.Add(value);
seriesIndices.Add(i);
_seriesYs.Add(dy);
insideStacked = true;
break;
}
}
else
{
dy1 = gridBottom -
gridHeight * (yValues[j, i] - minValue) / (maxValue - minValue);
dy = dy1 - (gridHeight * (yValues[j + 1, i] - yValues[j, i]) / (maxValue - minValue)) * (pt.X - dx) / barWidth;
// find all the series that the y point matches
if (dy <= pt.Y)
{
value = yValues[j, i] + (yValues[j + 1, i] - yValues[j, i]) * (pt.X - dx) / barWidth;
seriesValues.Add(value);
seriesIndices.Add(i);
_seriesYs.Add(dy);
}
break;
}
}
dx += barWidth;
}
}
return(new ChartEventArgs(seriesIndices.ToArray(), null, seriesValues.ToArray(), null));
}
internal XYLineChart(ChartType type, ChartModel model) : base(type, model)
{
}
private void _drawPerspectiveXYValues()
{
bool animate = (this.AnimationDuration > 0);
double xOffset = XOffsetPerspective, yOffset = YOffsetPerspective;
double marginLeft = MarginLeft, marginTop = MarginTop;
double marginRight = MarginRight, marginBottom = MarginBottom;
double gridWidth = (ChartCanvas.Width - marginLeft - marginRight - xOffset);
double gridHeight = (ChartCanvas.Height - marginTop - marginBottom - yOffset);
LookAndFeel lf = CurrentLookAndFeel;
string pathXAML = lf.GetLinePath3DXAML();
Path pathElem;
List <UIElement> dataElems = null;
if (animate)
{
dataElems = DataElements;
}
ChartModel model = Model;
string[] seriesLabels = model.SeriesLabels;
int seriesCount = seriesLabels.Length;
Color[] seriesColors = model.SeriesColors;
double[,] yValues = model.YValues;
double minYValue = model.MinYValue, maxYValue = model.MaxYValue;
int nValues = yValues.GetUpperBound(0) + 1;
double[,] xValues = model.XValues;
double minXValue = model.MinXValue, maxXValue = model.MaxXValue;
double gridBottom = gridHeight + marginTop + yOffset;
double dx, dy;
string gradientXAML = lf.GetElementGradientXAML();
MatrixTransform defaultTransform;
for (int i = 0; i < seriesCount; ++i)
{
StringBuilder sb = new StringBuilder();
for (var j = 0; j < nValues; ++j)
{
dy = gridBottom - gridHeight * (yValues[j, i] - minYValue) / (maxYValue - minYValue);
dx = marginLeft + gridWidth * (xValues[j, i] - minXValue) / (maxXValue - minXValue);
if (j != nValues - 1)
{
sb.Append(" M").Append(dx).Append(",").Append(dy);
sb.Append(" l").Append(xOffset).Append(",").Append(-yOffset);
double nextdy, nextdx;
nextdx = marginLeft + gridWidth * (xValues[j + 1, i] - minXValue) / (maxXValue - minXValue);
nextdy = gridBottom -
gridHeight * (yValues[j + 1, i] - minYValue) / (maxYValue - minYValue);
sb.Append(" L").Append(nextdx + xOffset).Append(",").Append(nextdy - yOffset);
sb.Append(" l").Append(-xOffset).Append(",").Append(yOffset);
sb.Append(" L").Append(dx).Append(",").Append(dy);
}
}
pathElem = CreatePathFromXAMLAndData(pathXAML, sb);
if (animate)
{
dataElems.Add(pathElem);
defaultTransform = new MatrixTransform();
Matrix m = new Matrix();
m.M11 = 0.0;
defaultTransform.Matrix = m;
pathElem.SetValue(UIElement.RenderTransformProperty, defaultTransform);
}
if (gradientXAML != null)
{
SetGradientOnElement(pathElem, gradientXAML, seriesColors[i], 0xC0);
}
else
{
SetFillOnElement(pathElem, seriesColors[i]);
}
pathElem.SetValue(Path.StrokeProperty, new SolidColorBrush(seriesColors[i]));
(pathElem.Data as PathGeometry).FillRule = FillRule.Nonzero;
SetExpandosOnElement(pathElem, -1, i, new Point());
if (DisplayToolTip)
{
pathElem.MouseMove += new MouseEventHandler(ShowToolTip);
pathElem.MouseLeave += new MouseEventHandler(HideToolTip);
}
pathElem.MouseLeftButtonUp += new MouseButtonEventHandler(ChartDataClicked);
ChartCanvas.Children.Add(pathElem);
}
}
private void _drawBars(int mod, int rem)
{
bool animate = (this.AnimationDuration > 0);
double marginLeft = MarginLeft, marginTop = MarginTop;
double marginRight = MarginRight, marginBottom = MarginBottom;
double gridWidth = (ChartCanvas.Width - marginLeft - marginRight);
double gridHeight = (ChartCanvas.Height - marginTop - marginBottom);
LookAndFeel lf = CurrentLookAndFeel;
string rectXAML = lf.GetBarPathXAML();
Path rectElem;
List <UIElement> dataElems = null;
MatrixTransform defaultTransform = null;
if (animate)
{
dataElems = DataElements;
}
int barItemPadding = _BARITEM_PADDING;
bool isStacked = (Type == ChartType.HBAR_STACKED);
ChartModel model = Model;
string[] groupLabels = model.GroupLabels;
int groupCount = groupLabels.Length;
string[] seriesLabels = model.SeriesLabels;
int seriesCount = seriesLabels.Length;
Color[] seriesColors = model.SeriesColors;
double[,] yValues = model.YValues;
double minValue = model.MinYValue, maxValue = model.MaxYValue;
// For combo graphs we display every once in mod
double barDivider = isStacked ? 1 : ((mod > 1) ? Math.Ceiling(seriesCount / mod) : seriesCount);
double stackBase = minValue;
int yValueCount = yValues.GetUpperBound(0) + 1;
double barHeight = (gridHeight / Math.Max(yValueCount, groupCount) - 2 * barItemPadding) / barDivider;
double dx = marginLeft, dy = gridHeight + marginTop, barWidth;
string gradientXAML = lf.GetElementGradientXAML();
for (int i = 0; i < yValueCount; ++i)
{
dy -= barItemPadding;
dx = marginLeft;
for (int j = 0; j < seriesCount; ++j)
{
// for combo charts we draw a bar every once in a mod.
if ((mod > 1) && (j % mod) != rem)
{
continue;
}
// If we use non zero min and it is a stacked graph, we need to remove the min for only
// the first series.
if (isStacked)
{
stackBase = (j == 0 ? minValue : 0);
}
rectElem = XamlReader.Load(rectXAML) as Path;
if (animate)
{
dataElems.Add(rectElem);
// FIXTHIS: This is inefficient. However Silverlight currently does not allow sharing transform attribute
defaultTransform = new MatrixTransform();
Matrix m = new Matrix();
m.M11 = 0.0;
defaultTransform.Matrix = m;
rectElem.SetValue(UIElement.RenderTransformProperty, defaultTransform);
}
barWidth = gridWidth * (yValues[i, j] - stackBase) / (maxValue - minValue);
RectangleGeometry rectGeometry = new RectangleGeometry();
rectGeometry.RadiusX = rectGeometry.RadiusY = 2;
rectGeometry.Rect = new Rect(dx, dy - barHeight, barWidth, barHeight);
rectElem.SetValue(Path.DataProperty, rectGeometry);
if (gradientXAML != null)
{
SetGradientOnElement(rectElem, gradientXAML, seriesColors[j], 0xe5);
}
else
{
SetFillOnElement(rectElem, seriesColors[j]);
}
rectElem.SetValue(Rectangle.StrokeProperty, new SolidColorBrush(seriesColors[j]));
if (isStacked)
{
dx += barWidth;
}
SetExpandosOnElement(rectElem, i, j, new Point(dx + barWidth, dy - barHeight / 2.0));
if (DisplayToolTip)
{
rectElem.MouseEnter += new MouseEventHandler(ShowToolTip);
rectElem.MouseLeave += new MouseEventHandler(HideToolTip);
}
rectElem.MouseLeftButtonUp += new MouseButtonEventHandler(ChartDataClicked);
ChartCanvas.Children.Add(rectElem);
if (!isStacked)
{
dy -= barHeight;
}
}
if (isStacked)
{
dy -= barHeight;
}
dy -= barItemPadding;
}
}
private void _drawPies(
Canvas pieContainer,
double quadWidth,
double quadHeight,
int iGroup)
{
ChartModel model = Model;
double[,] yValues = model.YValues;
string [] groupLabels = model.GroupLabels;
Color[] seriesColors = model.SeriesColors;
var pieSize = Math.Min(quadWidth / 2, quadHeight / 2);
if (iGroup == -1)
{
iGroup = 0;
}
double nPies = yValues.GetUpperBound(1) + 1;
double pieTotal = 0;
for (int i = 0; i < nPies; ++i)
{
pieTotal += yValues[iGroup, i];
}
string pathXAML = CurrentLookAndFeel.GetPiePathXAML();
Path pathElem;
double pieStart = 0, animAngleStart = 0;
List <UIElement> dataElems = null;
bool animate = (AnimationDuration > 0);
if (animate)
{
dataElems = DataElements;
}
string gradientXAML = CurrentLookAndFeel.GetElementGradientXAML();
TranslateTransform defaultTransform;
for (int i = 0; i < nPies; ++i)
{
double valueRatio = 1 - (yValues[iGroup, i]) / (pieTotal);
double x1 = pieSize * Math.Cos(pieStart * Math.PI * 2),
y1 = pieSize * Math.Sin(pieStart * Math.PI * 2);
StringBuilder sb = new StringBuilder();
sb.Append("M0,0 L");
sb.Append(x1);
sb.Append(",").Append(y1);
double x2 = pieSize * Math.Cos((pieStart + valueRatio) * Math.PI * 2),
y2 = pieSize * Math.Sin((pieStart + valueRatio) * Math.PI * 2);
if (valueRatio >= .5) // major arc
{
sb.Append(" A").Append(pieSize).Append(" ").Append(pieSize).Append(" 1 0 0 ");
}
else
{
sb.Append(" A").Append(pieSize).Append(" ").Append(pieSize).Append(" 1 1 0 ");
}
sb.Append(x2);
sb.Append(",").Append(y2);
sb.Append(" z");
pathElem = CreatePathFromXAMLAndData(pathXAML, sb);
if (animate)
{
dataElems.Add(pathElem);
defaultTransform = new TranslateTransform();
defaultTransform.X = defaultTransform.Y = -10000;
pathElem.SetValue(Canvas.RenderTransformProperty, defaultTransform);
double curAnimRatio = (yValues[iGroup, i]) / (pieTotal);
_pieAnimAngles.Add(animAngleStart + curAnimRatio / 2);
animAngleStart += curAnimRatio;
}
if (gradientXAML != null)
{
SetGradientOnElement(pathElem, gradientXAML, seriesColors[i], 0xe5);
}
else
{
SetFillOnElement(pathElem, seriesColors[i]);
}
pathElem.SetValue(Rectangle.StrokeProperty, new SolidColorBrush(seriesColors[i]));
// centroid of the triangle used for tooltips
Point centroid = new Point((x1 + x2) / 3, (y1 + y2) / 3);
SetExpandosOnElement(pathElem, iGroup, i, centroid);
if (DisplayToolTip)
{
pathElem.MouseEnter += new MouseEventHandler(ShowToolTip);
pathElem.MouseLeave += new MouseEventHandler(HideToolTip);
}
pathElem.MouseLeftButtonUp += new MouseButtonEventHandler(ChartDataClicked);
pieStart += valueRatio;
pieContainer.Children.Add(pathElem);
}
/*for (var i = 0; i< nPies; ++i)
* {
* // calculate the pie gradient:
* pieContainer.appendChild(pieElems[i]);
* }*/
}
internal GaugeChart(ChartType type, ChartModel model) : base(type, model)
{
}
private void _draw3DPies(
Canvas pieContainer,
double quadWidth,
double quadHeight,
int iGroup)
{
ChartModel model = Model;
double[,] yValues = model.YValues;
string[] groupLabels = model.GroupLabels;
Color[] seriesColors = model.SeriesColors;
var pieSize = Math.Min(quadWidth / 2, quadHeight / 2);
if (iGroup == -1)
{
iGroup = 0;
}
int nPies = yValues.GetUpperBound(1) + 1;
double pieTotal = 0;
for (int i = 0; i < nPies; ++i)
{
pieTotal += yValues[iGroup, i];
}
string pathXAML = CurrentLookAndFeel.GetPiePathXAML();
Path pathElem;
double pieStart = 0;
List <UIElement> dataElems = null;
bool animate = (AnimationDuration > 0);
if (animate)
{
dataElems = DataElements;
}
double perspectiveHeight = pieSize / 4;
Path[] pieElems = new Path[nPies],
ringElems = new Path[nPies],
edgeElems = new Path[nPies];
if (perspectiveHeight > _MAX_PERSPECTIVE_HEIGHT)
{
perspectiveHeight = _MAX_PERSPECTIVE_HEIGHT;
}
string gradientXAML = CurrentLookAndFeel.GetElementGradientXAML();
TranslateTransform defaultTransform;
for (int i = 0; i < nPies; ++i)
{
double valueRatio = 1 - (yValues[iGroup, i]) / (pieTotal);
double arcBeginX, arcBeginY, arcEndX, arcEndY;
arcBeginX = pieSize * Math.Cos(pieStart * Math.PI * 2);
arcBeginY = pieSize * Math.Sin(pieStart * Math.PI * 2);
StringBuilder sb = new StringBuilder();
sb.Append("M0,0L").Append(arcBeginX).Append(",").Append(arcBeginY);
arcEndX = pieSize * Math.Cos((pieStart + valueRatio) * Math.PI * 2);
arcEndY = pieSize * Math.Sin((pieStart + valueRatio) * Math.PI * 2);
if (valueRatio >= .5)
{
sb.Append(" A").Append(pieSize).Append(",").Append(pieSize).Append(" 1 0 0 ");
}
else
{
sb.Append(" A").Append(pieSize).Append(",").Append(pieSize).Append(" 1 1 0 ");
}
sb.Append(arcEndX).Append(",").Append(arcEndY);
sb.Append(" z");
pathElem = CreatePathFromXAMLAndData(pathXAML, sb);
if (animate)
{
dataElems.Add(pathElem);
defaultTransform = new TranslateTransform();
defaultTransform.X = defaultTransform.Y = -10000;
pathElem.SetValue(Canvas.RenderTransformProperty, defaultTransform);
_pieAnimAngles.Add(pieStart + valueRatio / 2);
}
if (gradientXAML != null)
{
SetGradientOnElement(pathElem, gradientXAML, seriesColors[i], 0xe5);
}
else
{
SetFillOnElement(pathElem, seriesColors[i]);
}
pathElem.SetValue(Rectangle.StrokeProperty, new SolidColorBrush(seriesColors[i]));
// centroid of the pie triangle
Point centroid = new Point((arcBeginX + arcEndX) / 3, (arcBeginY + arcEndY) / 3);
SetExpandosOnElement(pathElem, iGroup, i, centroid);
if (DisplayToolTip)
{
pathElem.MouseEnter += new MouseEventHandler(ShowToolTip);
pathElem.MouseLeave += new MouseEventHandler(HideToolTip);
}
pathElem.MouseLeftButtonUp += new MouseButtonEventHandler(ChartDataClicked);
sb = new StringBuilder();
sb.Append("M").Append(arcBeginX).Append(",").Append(arcBeginY);
if (valueRatio >= .5) // major arc
{
sb.Append(" A").Append(pieSize).Append(",").Append(pieSize).Append(" 1 0 0 ");
}
else
{
sb.Append(" A").Append(pieSize).Append(" ").Append(pieSize).Append(" 1 1 0 ");
}
sb.Append(arcEndX).Append(",").Append(arcEndY);
sb.Append(" v").Append(perspectiveHeight);
sb.Append(" M").Append(arcEndX).Append(",").Append(arcEndY + perspectiveHeight);
if (valueRatio >= .5) // major arc
{
sb.Append(" A").Append(pieSize).Append(",").Append(pieSize).Append(" 1 0 1 ");
}
else
{
sb.Append(" A").Append(pieSize).Append(",").Append(pieSize).Append(" 1 1 1 ");
}
sb.Append(arcBeginX).Append(",").Append(arcBeginY + perspectiveHeight);
sb.Append(" v").Append(-perspectiveHeight);
Path pathRingElem = CreatePathFromXAMLAndData(pathXAML, sb);
if (gradientXAML != null)
{
SetGradientOnElement(pathRingElem, gradientXAML, seriesColors[i], 0xe5);
}
else
{
SetFillOnElement(pathRingElem, seriesColors[i]);
}
pathRingElem.SetValue(Rectangle.StrokeProperty, new SolidColorBrush(seriesColors[i]));
sb = new StringBuilder();
sb.Append("M0,0L");
sb.Append(arcBeginX).Append(",").Append(arcBeginY);
sb.Append("v").Append(perspectiveHeight);
sb.Append("L").Append(0).Append(",").Append(perspectiveHeight);
sb.Append("z");
sb.Append("M0,0L");
sb.Append(arcEndX).Append(",").Append(arcEndY);
sb.Append("v").Append(perspectiveHeight);
sb.Append("L").Append(0).Append(",").Append(perspectiveHeight);
sb.Append("z");
Path pathEdgeElem = CreatePathFromXAMLAndData(pathXAML, sb);
if (animate)
{
dataElems.Add(pathRingElem);
defaultTransform = new TranslateTransform();
defaultTransform.X = defaultTransform.Y = -10000;
pathRingElem.SetValue(Canvas.RenderTransformProperty, defaultTransform);
dataElems.Add(pathEdgeElem);
defaultTransform = new TranslateTransform();
defaultTransform.X = defaultTransform.Y = -10000;
pathEdgeElem.SetValue(Canvas.RenderTransformProperty, defaultTransform);
}
(pathEdgeElem.Data as PathGeometry).FillRule = FillRule.Nonzero;
if (gradientXAML != null)
{
SetGradientOnElement(pathEdgeElem, gradientXAML, seriesColors[i], 0xe5);
}
else
{
SetFillOnElement(pathEdgeElem, seriesColors[i]);
}
pathEdgeElem.SetValue(Rectangle.StrokeProperty, new SolidColorBrush(seriesColors[i]));
if (DisplayToolTip)
{
pathRingElem.MouseEnter += new MouseEventHandler(ShowToolTip);
pathRingElem.MouseLeave += new MouseEventHandler(HideToolTip);
pathEdgeElem.MouseEnter += new MouseEventHandler(ShowToolTip);
pathEdgeElem.MouseLeave += new MouseEventHandler(HideToolTip);
}
SetExpandosOnElement(pathRingElem, iGroup, i, centroid);
SetExpandosOnElement(pathEdgeElem, iGroup, i, centroid);
pieStart += valueRatio;
pieElems[i] = pathElem;
ringElems[i] = pathRingElem;
edgeElems[i] = pathEdgeElem;
}
UIElementCollection children = pieContainer.Children;
// For the top half, edges have preference over rings
double totalRatio = 0;
for (int i = 0; i < nPies; ++i)
{
if (totalRatio <= .5)
{
children.Add(ringElems[i]);
}
totalRatio += (yValues[iGroup, i]) / (pieTotal);
}
totalRatio = 0;
for (int i = 0; i < nPies; ++i)
{
if (totalRatio <= .5)
{
children.Add(edgeElems[i]);
}
totalRatio += (yValues[iGroup, i]) / (pieTotal);
}
// For the bottom half, rings have preference over edges
totalRatio = 0;
for (int i = 0; i < nPies; ++i)
{
if (totalRatio > .5)
{
children.Add(edgeElems[i]);
}
totalRatio += (yValues[iGroup, i]) / (pieTotal);
}
totalRatio = 0;
for (int i = 0; i < nPies; ++i)
{
if (totalRatio > .5)
{
children.Add(ringElems[i]);
}
totalRatio += (yValues[iGroup, i]) / (pieTotal);
}
for (int i = 0; i < nPies; ++i)
{
children.Add(pieElems[i]);
}
}
private void _drawPerspectivePoints()
{
bool animate = (this.AnimationDuration > 0);
double xOffset = XOffsetPerspective, yOffset = YOffsetPerspective;
double marginLeft = MarginLeft, marginTop = MarginTop;
double marginRight = MarginRight, marginBottom = MarginBottom;
double gridWidth = (ChartCanvas.Width - marginLeft - marginRight - xOffset);
double gridHeight = (ChartCanvas.Height - marginTop - marginBottom - yOffset);
LookAndFeel lf = CurrentLookAndFeel;
string dotXAML = lf.GetScatterDot3DXAML();
Path dotElem;
List <UIElement> dataElems = null;
if (animate)
{
dataElems = DataElements;
}
ChartModel model = Model;
string [] groupLabels = model.GroupLabels;
int groupCount = groupLabels.Length;
string [] seriesLabels = model.SeriesLabels;
int seriesCount = seriesLabels.Length;
Color [] seriesColors = model.SeriesColors;
double[,] yValues = model.YValues;
double minYValue = model.MinYValue, maxYValue = model.MaxYValue;
int nValues = yValues.GetUpperBound(0) + 1;
double[,] xValues = model.XValues;
double minXValue = model.MinXValue, maxXValue = model.MaxXValue;
double barWidth = (gridWidth / (double)(groupCount - 1));
double gridBottom = gridHeight + marginTop + yOffset;
double dx, dy, gridCx = 0, gridCy = 0;
string gradientXAML = lf.GetElementGradientXAML();
if (animate)
{
_cxs = new double[seriesCount * nValues];
_cys = new double[seriesCount * nValues];
gridCx = gridWidth / 2 + marginLeft + xOffset;
gridCy = gridHeight / 2 + marginTop;
}
for (int i = 0; i < seriesCount; ++i)
{
for (int j = 0; j < nValues; ++j)
{
dy = gridBottom - gridHeight * (yValues[j, i] - minYValue) / (maxYValue - minYValue);
dx = marginLeft + gridWidth * (xValues[j, i] - minXValue) / (maxXValue - minXValue);
dotElem = XamlReader.Load(dotXAML) as Path;
EllipseGeometry eg = dotElem.Data as EllipseGeometry;
if (animate)
{
dataElems.Add(dotElem);
eg.Center = new Point(gridCx, gridCy);
// we will use it during animation
int cIndex = (i * nValues + j);
_cxs[cIndex] = dx;
_cys[cIndex] = dy;
}
else
{
eg.Center = new Point(dx, dy);
}
if (gradientXAML != null)
{
SetGradientOnElement(dotElem, gradientXAML, seriesColors[i], 0xe5);
}
else
{
SetFillOnElement(dotElem, seriesColors[i]);
}
dotElem.SetValue(Path.StrokeProperty, new SolidColorBrush(seriesColors[i]));
SetExpandosOnElement(dotElem, j, i, new Point(dx, dy));
if (DisplayToolTip)
{
dotElem.MouseEnter += new MouseEventHandler(ShowToolTip);
dotElem.MouseLeave += new MouseEventHandler(HideToolTip);
}
dotElem.MouseLeftButtonUp += new MouseButtonEventHandler(ChartDataClicked);
//TODO:
// Silverlight does not support Filter effects so use another do as a shadow for it.
var shadowElem = XamlReader.Load(dotXAML) as Path;
eg = shadowElem.Data as EllipseGeometry;
if (animate)
{
dataElems.Add(shadowElem);
eg.Center = new Point(gridCx, gridCy);
}
else
{
eg.Center = new Point(dx, dy);
}
shadowElem.Fill = new SolidColorBrush(Color.FromArgb(0x7f, 0x33, 0x33, 0x33));
shadowElem.SetValue(Path.StrokeThicknessProperty, 0.0);
TranslateTransform tt = new TranslateTransform();
tt.X = tt.Y = 3;
shadowElem.SetValue(UIElement.RenderTransformProperty, tt);
ChartCanvas.Children.Add(shadowElem);
ChartCanvas.Children.Add(dotElem);
}
}
}
private void _drawPerspectiveAreas(int mod, int rem)
{
bool animate = (this.AnimationDuration > 0);
double xOffset = XOffsetPerspective, yOffset = YOffsetPerspective;
double marginLeft = MarginLeft, marginTop = MarginTop;
double marginRight = MarginRight, marginBottom = MarginBottom;
double gridWidth = (ChartCanvas.Width - marginLeft - marginRight - xOffset);
double gridHeight = (ChartCanvas.Height - marginTop - marginBottom - yOffset);
LookAndFeel lf = CurrentLookAndFeel;
string pathXAML = lf.GetAreaPathXAML();
Path pathElem;
List <UIElement> dataElems = null;
MatrixTransform defaultTransform = null;
if (animate)
{
dataElems = DataElements;
}
bool isStacked = (Type == ChartType.AREA_STACKED);
ChartModel model = Model;
string [] groupLabels = model.GroupLabels;
int groupCount = groupLabels.Length;
string [] seriesLabels = model.SeriesLabels;
int seriesCount = seriesLabels.Length;
Color [] seriesColors = model.SeriesColors;
double[,] yValues = model.YValues;
double minValue = model.MinYValue, maxValue = model.MaxYValue;
int yValueCount = yValues.GetUpperBound(0) + 1;
double barWidth = (gridWidth / (Math.Max(yValueCount, groupCount))), stackBase;
double barHeight;
double gridBottom = gridHeight + marginTop + yOffset, dx, dy;
double[] cumYs = isStacked? new double[yValueCount] : null;
if (isStacked)
{
cumYs = new double[yValueCount];
for (int j = 0; j < yValueCount; ++j)
{
cumYs[j] = double.NaN;
}
}
string gradientXAML = lf.GetElementGradientXAML();
for (int i = 0; i < seriesCount; ++i)
{
// for combo charts we draw a bar every once in a mod.
if ((mod > 1) && (i % mod) != rem)
{
continue;
}
dx = marginLeft + barWidth / 2.0;
// If we use non zero min and it is a stacked graph, we need to remove the min for only
// the first series.
stackBase = (i == 0?minValue:0);
StringBuilder sb = new StringBuilder();
for (int j = 0; j < yValueCount; ++j)
{
barHeight = gridHeight * (yValues[j, i] - stackBase) / (maxValue - minValue);
if (isStacked)
{
if (double.IsNaN(cumYs[j]))
{
cumYs[j] = gridBottom;
}
dy = (cumYs[j] -= barHeight);
}
else
{
dy = gridBottom - barHeight;
}
if (j == yValueCount - 1)
{
break;
}
sb.Append("M").Append(dx).Append(",").Append(dy);
sb.Append(" l").Append(xOffset).Append(",").Append(-yOffset);
if (i == 0 || !isStacked)
{
sb.Append(" L").Append(dx + xOffset).Append(",").Append(gridHeight + marginTop);
}
else
{
sb.Append(" v").Append(barHeight);
}
sb.Append(" l").Append(-xOffset).Append(",").Append(yOffset);
sb.Append(" z");
sb.Append("M").Append(dx).Append(",").Append(dy);
sb.Append(" l").Append(xOffset).Append(",").Append(-yOffset);
double nextdy, nextdx = dx + barWidth;
if (isStacked)
{
if (double.IsNaN(cumYs[j + 1]))
{
cumYs[j + 1] = gridBottom;
}
nextdy = (cumYs[j + 1] - gridHeight * (yValues[j + 1, i] - stackBase) / (maxValue - minValue));
}
else
{
nextdy = gridBottom - gridHeight * (yValues[j + 1, i] - minValue) / (maxValue - minValue);
}
sb.Append(" L").Append(nextdx + xOffset).Append(",").Append(nextdy - yOffset);
sb.Append(" l").Append(-xOffset).Append(",").Append(yOffset);
sb.Append(" L").Append(dx).Append(",").Append(dy);
sb.Append(" M").Append(nextdx).Append(",").Append(nextdy);
sb.Append(" l").Append(xOffset).Append(",").Append(-yOffset);
if (i == 0 || !isStacked)
{
sb.Append(" L").Append(nextdx + xOffset).Append(",").Append(gridHeight + marginTop);
}
else
{
sb.Append(" L").Append(nextdx + xOffset).Append(",").Append(cumYs[j + 1] - yOffset);
}
sb.Append(" l").Append(-xOffset).Append(",").Append(yOffset);
sb.Append(" L").Append(nextdx).Append(",").Append(nextdy);
sb.Append(" M").Append(dx).Append(",").Append(dy);
sb.Append(" L").Append(nextdx).Append(",").Append(nextdy);
if (i == 0 || !isStacked)
{
sb.Append(" L").Append(nextdx).Append(",").Append(gridBottom);
sb.Append(" L").Append(dx).Append(",").Append(gridBottom);
}
else
{
sb.Append(" L").Append(nextdx).Append(",").Append(cumYs[j + 1]);
sb.Append(" L").Append(dx).Append(",").Append(
cumYs[j] + gridHeight * (yValues[j, i] - stackBase) / (maxValue - minValue));
}
sb.Append(" L").Append(dx).Append(",").Append(dy);
dx += barWidth;
}
pathElem = CreatePathFromXAMLAndData(pathXAML, sb);
SetExpandosOnElement(pathElem, -1, i, new Point());
if (DisplayToolTip)
{
pathElem.MouseMove += new MouseEventHandler(ShowToolTip);
pathElem.MouseLeave += new MouseEventHandler(HideToolTip);
}
pathElem.MouseLeftButtonUp += new MouseButtonEventHandler(ChartDataClicked);
if (gradientXAML != null)
{
SetGradientOnElement(pathElem, gradientXAML, seriesColors[i], 0x7F);
}
else
{
SetFillOnElement(pathElem, seriesColors[i]);
}
pathElem.SetValue(Path.StrokeProperty, new SolidColorBrush(seriesColors[i]));
(pathElem.Data as PathGeometry).FillRule = FillRule.Nonzero;
if (animate)
{
dataElems.Add(pathElem);
defaultTransform = new MatrixTransform();
Matrix m = new Matrix();
m.M11 = 0.0;
defaultTransform.Matrix = m;
pathElem.SetValue(UIElement.RenderTransformProperty, defaultTransform);
}
ChartCanvas.Children.Add(pathElem);
}
}
public HorizontalBarChart(ChartType type, ChartModel model) : base(type, model)
{
}
private void _displayToolTips(
object sender,
MouseEventArgs e,
double[] seriesValues,
int [] seriesIndices
)
{
ChartModel model = Model;
string[] seriesLabels = model.SeriesLabels;
int seriesCount = seriesLabels.Length;
Color[] seriesColors = model.SeriesColors;
int tooltipCount = seriesIndices.Length;;
Point pt = e.GetPosition(ChartCanvas);
double dx, dy;
if (_tooltips == null)
{
_tooltips = new Canvas[seriesCount];
}
for (int i = 0; i < tooltipCount; ++i)
{
int seriesIndex = seriesIndices[i];
Canvas toolTip = _tooltips[seriesIndex];
bool resizeOnInit = false;
if (toolTip == null)
{
toolTip = XamlReader.Load(CurrentLookAndFeel.GetTooltipXAML()) as Canvas;
ChartCanvas.Children.Add(toolTip);
_tooltips[seriesIndex] = toolTip;
resizeOnInit = true;
}
toolTip.Visibility = Visibility.Visible;
Path circleElem = toolTip.Children[0] as Path;
Path boundingRectElem = toolTip.Children[1] as Path;
//append all the series values as labels
TextBlock textElem = toolTip.Children[2] as TextBlock;
int textElemCount = seriesValues.Length;
textElem.Text = seriesLabels[seriesIndex] + ": " + seriesValues[i].ToString(Format);
double rectWidth = textElem.ActualWidth;
RectangleGeometry rg = boundingRectElem.Data as RectangleGeometry;
Rect rect = rg.Rect;
// Initially the template tooltip has an extra text node
if (resizeOnInit)
{
dy = textElem.ActualHeight;
rg.Rect = new Rect(rect.X, rect.Y, rect.Width, rect.Height - dy);
textElem = toolTip.Children[3] as TextBlock;
textElem.Text = "";
}
rectWidth += 2 * _TEXT_MARGIN;
rect = rg.Rect;
rg.Rect = new Rect(rect.X, rect.Y, rectWidth, rect.Height);
EllipseGeometry eg = circleElem.Data as EllipseGeometry;
dx = pt.X;
dy = _seriesYs[i] - rect.Height;
if (IsPerspective)
{
dy -= YOffsetPerspective / 2.0;
}
double cx, cy;
if (dx + rectWidth > ChartCanvas.Width)
{
dx -= rectWidth;
cx = rectWidth;
}
else
{
cx = 0;
}
if (dy - rect.Height < 0)
{
dy += rect.Height;
cy = 0;
}
else
{
cy = rect.Height;
}
eg.Center = new Point(cx, cy);
boundingRectElem.SetValue(Path.StrokeProperty, new SolidColorBrush(seriesColors[seriesIndex]));
circleElem.SetValue(Path.StrokeProperty, new SolidColorBrush(seriesColors[seriesIndex]));
TranslateTransform tTrans = new TranslateTransform();
tTrans.X = dx;
tTrans.Y = dy;
toolTip.RenderTransform = tTrans;
}
}
private void _drawXYValues()
{
bool animate = (this.AnimationDuration > 0);
double marginLeft = MarginLeft, marginTop = MarginTop;
double marginRight = MarginRight, marginBottom = MarginBottom;
double gridWidth = (ChartCanvas.Width - marginLeft - marginRight);
double gridHeight = (ChartCanvas.Height - marginTop - marginBottom);
LookAndFeel lf = CurrentLookAndFeel;
string pathXAML = lf.GetLinePathXAML();
Path pathElem;
List <UIElement> dataElems = null;
if (animate)
{
dataElems = DataElements;
}
ChartModel model = Model;
string[] seriesLabels = model.SeriesLabels;
int seriesCount = seriesLabels.Length;
Color[] seriesColors = model.SeriesColors;
double[,] yValues = model.YValues;
double minYValue = model.MinYValue, maxYValue = model.MaxYValue;
int nValues = yValues.GetUpperBound(0) + 1;
double[,] xValues = model.XValues;
double minXValue = model.MinXValue, maxXValue = model.MaxXValue;
double dx, dy;
MatrixTransform defaultTransform;
for (int i = 0; i < seriesCount; ++i)
{
StringBuilder sb = new StringBuilder();
dx = marginLeft;
dy = gridHeight + marginTop;
for (int j = 0; j < nValues; ++j)
{
dy = gridHeight + marginTop - gridHeight * (yValues[j, i] - minYValue) / (maxYValue - minYValue);
dx = marginLeft + gridWidth * (xValues[j, i] - minXValue) / (maxXValue - minXValue);
if (j == 0)
{
sb.Append("M").Append(dx).Append(",").Append(dy);
}
else
{
sb.Append(" L").Append(dx).Append(",").Append(dy);
}
}
pathElem = CreatePathFromXAMLAndData(pathXAML, sb);
if (animate)
{
dataElems.Add(pathElem);
defaultTransform = new MatrixTransform();
Matrix m = new Matrix();
m.M11 = 0.0;
defaultTransform.Matrix = m;
pathElem.SetValue(UIElement.RenderTransformProperty, defaultTransform);
}
SetExpandosOnElement(pathElem, -1, i, new Point());
if (DisplayToolTip)
{
pathElem.MouseMove += new MouseEventHandler(ShowToolTip);
pathElem.MouseLeave += new MouseEventHandler(HideToolTip);
}
pathElem.MouseLeftButtonUp += new MouseButtonEventHandler(ChartDataClicked);
pathElem.SetValue(Path.StrokeProperty, new SolidColorBrush(seriesColors[i]));
ChartCanvas.Children.Add(pathElem);
}
}
