public DrawingView(CGRect rect)
: base(rect)
{
ContentMode = UIViewContentMode.Redraw;
AutoresizingMask = UIViewAutoresizing.All;
BackColor = Color.Wheat;
sc = new SubChart (this);
sc.TotalChartBackColor = Color.White;
sc.Margin = 20;
sc.Rows = 2;
sc.Cols = 2;
dc1 = new DataCollection ();
cs1 = new ChartStyle (this);
cs1.TickFont = new Font ("Arial", 7f, FontStyle.Regular);
cs1.TitleFont = new Font ("Arial", 10f, FontStyle.Regular);
cs1.XLimMin = 0f;
cs1.XLimMax = 7f;
cs1.YLimMin = -1.5f;
cs1.YLimMax = 1.5f;
cs1.XTick = 1f;
cs1.YTick = .5f;
cs1.Title = "Sin(x)";
// Sub-chart 2 (0, 1):
dc2 = new DataCollection ();
cs2 = new ChartStyle (this);
cs2.TickFont = new Font ("Arial", 7f, FontStyle.Regular);
cs2.TitleFont = new Font ("Arial", 10f, FontStyle.Regular);
cs2.XLimMin = 0f;
cs2.XLimMax = 7f;
cs2.YLimMin = -1.5f;
cs2.YLimMax = 1.5f;
cs2.XTick = 1f;
cs2.YTick = .5f;
cs2.Title = "Cos(x)";
// Sub-chart 3 (1, 0):
dc3 = new DataCollection ();
cs3 = new ChartStyle (this);
cs3.TickFont = new Font ("Arial", 7f, FontStyle.Regular);
cs3.TitleFont = new Font ("Arial", 10f, FontStyle.Regular);
cs3.XLimMin = 0f;
cs3.XLimMax = 7f;
cs3.YLimMin = -.5f;
cs3.YLimMax = 1.5f;
cs3.XTick = 1f;
cs3.YTick = .5f;
cs3.Title = "Sin(x)^2";
// Sub-chart 4 (1, 1):
dc4 = new DataCollection ();
cs4 = new ChartStyle (this);
cs4.IsY2Axis = true;
cs4.IsXGrid = false;
cs4.IsYGrid = false;
cs4.TickFont = new Font ("Arial", 7f, FontStyle.Regular);
cs4.TitleFont = new Font ("Arial", 10f, FontStyle.Regular);
cs4.XLimMin = 0f;
cs4.XLimMax = 30f;
cs4.YLimMin = -20f;
cs4.YLimMax = 20f;
cs4.XTick = 5f;
cs4.YTick = 5f;
cs4.Y2LimMin = 100f;
cs4.Y2LimMax = 700f;
cs4.Y2Tick = 100f;
cs4.XLabel = "X Axis";
cs4.YLabel = "Y Axis";
cs4.Y2Label = "Y2 Axis";
cs4.Title = "With Y2 Axis";
lg = new Legend ();
lg.IsLegendVisible = true;
lg.LegendPosition = Legend.LegendPositionEnum.SouthEast;
}
void DrawLegend(Graphics g, float xCenter, float yCenter, float hWidth, float hHeight, DataCollection dc, ChartStyle cs)
{
float spacing = 8f;
float textHeight = 8f;
float htextHeight = textHeight / 2f;
float lineLength = 30f;
float hlineLength = lineLength / 2f;
Rectangle legendRectangle;
var aPen = new Pen (LegendBorderColor, 1f);
var aBrush = new SolidBrush (LegendBackColor);
if (isLegendVisible) {
legendRectangle = new Rectangle ((int)xCenter - (int)hWidth,
(int)yCenter - (int)hHeight,
(int)(2.0f * hWidth), (int)(2.0f * hHeight));
g.FillRectangle(aBrush, legendRectangle);
if (IsBorderVisible)
g.DrawRectangle (aPen, legendRectangle);
int n = 1;
foreach (DataSeries ds in dc.DataSeriesList) {
// Draw lines and symbols:
float xSymbol = legendRectangle.X + spacing + hlineLength;
float xText = legendRectangle.X + 2 * spacing + lineLength;
float yText = legendRectangle.Y + n * spacing + (2 * n - 1) * htextHeight;
aPen = new Pen(ds.LineStyle.LineColor, ds.LineStyle.Thickness);
aPen.DashStyle = ds.LineStyle.Pattern;
var ptStart = new PointF (legendRectangle.X + spacing, yText);
var ptEnd = new PointF (legendRectangle.X + spacing + lineLength, yText);
g.DrawLine (aPen, ptStart, ptEnd);
ds.SymbolStyle.DrawSymbol (g, new CGPoint(xSymbol, yText));
// Draw text:
var sFormat = new StringFormat {
Alignment = StringAlignment.Near
};
g.DrawString(ds.SeriesName, LegendFont, new SolidBrush(textColor), new PointF (xText, yText - 8), sFormat);
n++;
}
}
aPen.Dispose ();
aBrush.Dispose ();
}
public void AddLegend(Graphics g, DataCollection dc, ChartStyle cs)
{
if (dc.DataSeriesList.Count < 1)
return;
if (!IsLegendVisible)
return;
int numberOfDataSeries = dc.DataSeriesList.Count;
string[] legendLabels = new string[dc.DataSeriesList.Count];
int n = 0;
foreach (DataSeries ds in dc.DataSeriesList) {
legendLabels[n] = ds.SeriesName;
n++;
}
float offSet = 10;
float xc = 0f;
float yc = 0f;
CGSize size = g.MeasureString(legendLabels[0], LegendFont);
var legendWidth = (float)size.Width;
for (int i = 0; i < legendLabels.Length; i++) {
size = g.MeasureString(legendLabels[i], LegendFont);
var tempWidth = (float)size.Width;
if (legendWidth < tempWidth)
legendWidth = tempWidth;
}
legendWidth = legendWidth + 50f;
float hWidth = legendWidth / 2;
float legendHeight = 18f * numberOfDataSeries;
float hHeight = legendHeight / 2;
switch (LegendPosition) {
case LegendPositionEnum.East:
xc = cs.PlotArea.X + cs.PlotArea.Width - offSet - hWidth;
yc = cs.PlotArea.Y + cs.PlotArea.Height / 2;
break;
case LegendPositionEnum.North:
xc = cs.PlotArea.X + cs.PlotArea.Width / 2;
yc = cs.PlotArea.Y + offSet + hHeight;
break;
case LegendPositionEnum.NorthEast:
xc = cs.PlotArea.X + cs.PlotArea.Width - offSet - hWidth;
yc = cs.PlotArea.Y + offSet + hHeight;
break;
case LegendPositionEnum.NorthWest:
xc = cs.PlotArea.X + offSet + hWidth;
yc = cs.PlotArea.Y + offSet + hHeight;
break;
case LegendPositionEnum.South:
xc = cs.PlotArea.X + cs.PlotArea.Width / 2;
yc = cs.PlotArea.Y + cs.PlotArea.Height - offSet - hHeight;
break;
case LegendPositionEnum.SouthEast:
xc = cs.PlotArea.X + cs.PlotArea.Width - offSet - hWidth;
yc = cs.PlotArea.Y + cs.PlotArea.Height - offSet - hHeight;
break;
case LegendPositionEnum.SouthWest:
xc = cs.PlotArea.X + offSet + hWidth;
yc = cs.PlotArea.Y + cs.PlotArea.Height - offSet - hHeight;
break;
case LegendPositionEnum.West:
xc = cs.PlotArea.X + offSet + hWidth;
yc = cs.PlotArea.Y + cs.PlotArea.Height / 2;
break;
}
DrawLegend (g, xc, yc, hWidth, hHeight, dc, cs);
}
public DrawingView(CGRect rect) : base(rect)
{
ContentMode = UIViewContentMode.Redraw;
AutoresizingMask = UIViewAutoresizing.All;
BackColor = Color.Wheat;
sc = new SubChart(this);
sc.TotalChartBackColor = Color.White;
sc.Margin = 20;
sc.Rows = 2;
sc.Cols = 2;
dc1 = new DataCollection();
cs1 = new ChartStyle(this);
cs1.TickFont = new Font("Arial", 7f, FontStyle.Regular);
cs1.TitleFont = new Font("Arial", 10f, FontStyle.Regular);
cs1.XLimMin = 0f;
cs1.XLimMax = 7f;
cs1.YLimMin = -1.5f;
cs1.YLimMax = 1.5f;
cs1.XTick = 1f;
cs1.YTick = .5f;
cs1.Title = "Sin(x)";
// Sub-chart 2 (0, 1):
dc2 = new DataCollection();
cs2 = new ChartStyle(this);
cs2.TickFont = new Font("Arial", 7f, FontStyle.Regular);
cs2.TitleFont = new Font("Arial", 10f, FontStyle.Regular);
cs2.XLimMin = 0f;
cs2.XLimMax = 7f;
cs2.YLimMin = -1.5f;
cs2.YLimMax = 1.5f;
cs2.XTick = 1f;
cs2.YTick = .5f;
cs2.Title = "Cos(x)";
// Sub-chart 3 (1, 0):
dc3 = new DataCollection();
cs3 = new ChartStyle(this);
cs3.TickFont = new Font("Arial", 7f, FontStyle.Regular);
cs3.TitleFont = new Font("Arial", 10f, FontStyle.Regular);
cs3.XLimMin = 0f;
cs3.XLimMax = 7f;
cs3.YLimMin = -.5f;
cs3.YLimMax = 1.5f;
cs3.XTick = 1f;
cs3.YTick = .5f;
cs3.Title = "Sin(x)^2";
// Sub-chart 4 (1, 1):
dc4 = new DataCollection();
cs4 = new ChartStyle(this);
cs4.IsY2Axis = true;
cs4.IsXGrid = false;
cs4.IsYGrid = false;
cs4.TickFont = new Font("Arial", 7f, FontStyle.Regular);
cs4.TitleFont = new Font("Arial", 10f, FontStyle.Regular);
cs4.XLimMin = 0f;
cs4.XLimMax = 30f;
cs4.YLimMin = -20f;
cs4.YLimMax = 20f;
cs4.XTick = 5f;
cs4.YTick = 5f;
cs4.Y2LimMin = 100f;
cs4.Y2LimMax = 700f;
cs4.Y2Tick = 100f;
cs4.XLabel = "X Axis";
cs4.YLabel = "Y Axis";
cs4.Y2Label = "Y2 Axis";
cs4.Title = "With Y2 Axis";
lg = new Legend();
lg.IsLegendVisible = true;
lg.LegendPosition = Legend.LegendPositionEnum.SouthEast;
}
public void AddLegend(Graphics g, DataCollection dc, ChartStyle cs)
{
if (dc.DataSeriesList.Count < 1)
{
return;
}
if (!IsLegendVisible)
{
return;
}
int numberOfDataSeries = dc.DataSeriesList.Count;
string[] legendLabels = new string[dc.DataSeriesList.Count];
int n = 0;
foreach (DataSeries ds in dc.DataSeriesList)
{
legendLabels[n] = ds.SeriesName;
n++;
}
float offSet = 10;
float xc = 0f;
float yc = 0f;
CGSize size = g.MeasureString(legendLabels[0], LegendFont);
var legendWidth = (float)size.Width;
for (int i = 0; i < legendLabels.Length; i++)
{
size = g.MeasureString(legendLabels[i], LegendFont);
var tempWidth = (float)size.Width;
if (legendWidth < tempWidth)
{
legendWidth = tempWidth;
}
}
legendWidth = legendWidth + 50f;
float hWidth = legendWidth / 2;
float legendHeight = 18f * numberOfDataSeries;
float hHeight = legendHeight / 2;
switch (LegendPosition)
{
case LegendPositionEnum.East:
xc = cs.PlotArea.X + cs.PlotArea.Width - offSet - hWidth;
yc = cs.PlotArea.Y + cs.PlotArea.Height / 2;
break;
case LegendPositionEnum.North:
xc = cs.PlotArea.X + cs.PlotArea.Width / 2;
yc = cs.PlotArea.Y + offSet + hHeight;
break;
case LegendPositionEnum.NorthEast:
xc = cs.PlotArea.X + cs.PlotArea.Width - offSet - hWidth;
yc = cs.PlotArea.Y + offSet + hHeight;
break;
case LegendPositionEnum.NorthWest:
xc = cs.PlotArea.X + offSet + hWidth;
yc = cs.PlotArea.Y + offSet + hHeight;
break;
case LegendPositionEnum.South:
xc = cs.PlotArea.X + cs.PlotArea.Width / 2;
yc = cs.PlotArea.Y + cs.PlotArea.Height - offSet - hHeight;
break;
case LegendPositionEnum.SouthEast:
xc = cs.PlotArea.X + cs.PlotArea.Width - offSet - hWidth;
yc = cs.PlotArea.Y + cs.PlotArea.Height - offSet - hHeight;
break;
case LegendPositionEnum.SouthWest:
xc = cs.PlotArea.X + offSet + hWidth;
yc = cs.PlotArea.Y + cs.PlotArea.Height - offSet - hHeight;
break;
case LegendPositionEnum.West:
xc = cs.PlotArea.X + offSet + hWidth;
yc = cs.PlotArea.Y + cs.PlotArea.Height / 2;
break;
}
DrawLegend(g, xc, yc, hWidth, hHeight, dc, cs);
}
void DrawLegend(Graphics g, float xCenter, float yCenter, float hWidth, float hHeight, DataCollection dc, ChartStyle cs)
{
float spacing = 8f;
float textHeight = 8f;
float htextHeight = textHeight / 2f;
float lineLength = 30f;
float hlineLength = lineLength / 2f;
Rectangle legendRectangle;
var aPen = new Pen(LegendBorderColor, 1f);
var aBrush = new SolidBrush(LegendBackColor);
if (isLegendVisible)
{
legendRectangle = new Rectangle((int)xCenter - (int)hWidth,
(int)yCenter - (int)hHeight,
(int)(2.0f * hWidth), (int)(2.0f * hHeight));
g.FillRectangle(aBrush, legendRectangle);
if (IsBorderVisible)
{
g.DrawRectangle(aPen, legendRectangle);
}
int n = 1;
foreach (DataSeries ds in dc.DataSeriesList)
{
// Draw lines and symbols:
float xSymbol = legendRectangle.X + spacing + hlineLength;
float xText = legendRectangle.X + 2 * spacing + lineLength;
float yText = legendRectangle.Y + n * spacing + (2 * n - 1) * htextHeight;
aPen = new Pen(ds.LineStyle.LineColor, ds.LineStyle.Thickness);
aPen.DashStyle = ds.LineStyle.Pattern;
var ptStart = new PointF(legendRectangle.X + spacing, yText);
var ptEnd = new PointF(legendRectangle.X + spacing + lineLength, yText);
g.DrawLine(aPen, ptStart, ptEnd);
ds.SymbolStyle.DrawSymbol(g, new CGPoint(xSymbol, yText));
// Draw text:
var sFormat = new StringFormat {
Alignment = StringAlignment.Near
};
g.DrawString(ds.SeriesName, LegendFont, new SolidBrush(textColor), new PointF(xText, yText - 8), sFormat);
n++;
}
}
aPen.Dispose();
aBrush.Dispose();
}
