OxySize GetAxesSize(IRenderContext rc, IEnumerable <IAxis> axes)
{
if (axes == null)
{
return(new OxySize(0, 0));
}
double width = 0, height = 0;
foreach (IAxis axis in axes)
{
Axis cur = axis as Axis;
OxySize size = cur.Measure(rc);
if (size.Width > width)
{
width = size.Width;
}
if (size.Height > height)
{
height = size.Height;
}
}
return(new OxySize(width, height));
}
protected override void RenderAxisTitle(Axis axis, double titlePosition)
{
if (string.IsNullOrEmpty(axis.ActualTitle))
{
return;
}
var isHorizontal = axis.IsHorizontal();
OxySize?maxSize = null;
if (axis.ClipTitle)
{
var screenLength = isHorizontal ? Math.Abs(axis.ScreenMax.X - axis.ScreenMin.X) : Math.Abs(axis.ScreenMax.Y - axis.ScreenMin.Y);
maxSize = new OxySize(screenLength * axis.TitleClippingLength, double.MaxValue);
}
var angle = (axis is LinearAxis linearAxis) ? linearAxis.TitleAngle : -90d;
var halign = HorizontalAlignment.Center;
var valign = VerticalAlignment.Top;
var lpt = GetAxisTitlePositionAndAlignment(axis, titlePosition, ref angle, ref halign, ref valign);
RenderContext.DrawMathText(lpt, axis.ActualTitle,
ReflectionHack <OxyColor>("ActualTitleColor", axis),
ReflectionHack <string>("ActualTitleFont", axis),
ReflectionHack <double>("ActualTitleFontSize", axis),
ReflectionHack <double>("ActualTitleFontWeight", axis),
angle, halign, valign, maxSize);
}
public static PlotModel DrawTextMaxSize()
{
var model = new PlotModel();
model.Annotations.Add(new DelegateAnnotation(rc =>
{
const string Font = "Arial";
const double FontSize = 32d;
const double FontWeight = FontWeights.Bold;
const double D = FontSize * 1.6;
const double X = 20;
const double X2 = 200;
double y = 20;
var testStrings = new[] { "iii", "jjj", "OxyPlot", "Bottom", "100", "KML" };
foreach (var text in testStrings)
{
var maxSize = rc.MeasureText(text, Font, FontSize, FontWeight);
var p = new ScreenPoint(X, y);
rc.DrawText(p, text, OxyColors.Black, Font, FontSize, FontWeight, maxSize: maxSize);
var rect = new OxyRect(p, maxSize);
rc.DrawRectangle(rect, OxyColors.Undefined, OxyColors.Black);
var p2 = new ScreenPoint(X2, y);
var maxSize2 = new OxySize(maxSize.Width / 2, maxSize.Height / 2);
rc.DrawText(p2, text, OxyColors.Black, Font, FontSize, FontWeight, maxSize: maxSize2);
var rect2 = new OxyRect(p2, maxSize2);
rc.DrawRectangle(rect2, OxyColors.Undefined, OxyColors.Black);
y += D;
}
}));
return(model);
}
public override void Render(IRenderContext rc)
{
var numberOfSeries = PlotModel.Series.OfType <TotalSeries>().Count();
var slotWidth = PlotModel.Width / numberOfSeries;
var slotNumber = PlotModel.Series.IndexOf(this);
var startOffset = slotNumber * slotWidth;
var endOffset = (slotNumber + 1) * slotWidth;
var middleHorizontalOffset = startOffset + (slotWidth / 2);
var middleVerticalOffset = PlotModel.Height / 2;
var slotColor = PlotModel.DefaultColors[slotNumber];
var label = GetTotalText();
var totalTextSize = rc.MeasureText(label, PlotModel.DefaultFont, TotalFontSize);
var totalTextPosition = new ScreenPoint(middleHorizontalOffset - (totalTextSize.Width / 2), middleVerticalOffset - (totalTextSize.Height / 2));
var keyShapeSize = new OxySize(PlotModel.DefaultFontSize, PlotModel.DefaultFontSize);
var keyShapePadding = PlotModel.DefaultFontSize;
var keyTextSize = rc.MeasureText(metric.GetTitle(), PlotModel.DefaultFont, PlotModel.DefaultFontSize);
var keyWidth = keyShapeSize.Width + keyTextSize.Width;
var keyHorizontalOffset = middleHorizontalOffset - (keyWidth + keyShapePadding) / 2;
var keyShapePosition = new ScreenPoint(keyHorizontalOffset, middleVerticalOffset + totalTextSize.Height);
var keyTextPosition = new ScreenPoint(keyHorizontalOffset + keyShapeSize.Width + keyShapePadding, middleVerticalOffset + totalTextSize.Height);
rc.DrawText(totalTextPosition, label, PlotModel.TextColor, PlotModel.DefaultFont, TotalFontSize);
rc.DrawRectangle(new OxyRect(keyShapePosition, keyShapeSize), slotColor, new OxyColor());
rc.DrawText(keyTextPosition, metric.GetTitle(), PlotModel.TextColor, PlotModel.DefaultFont, PlotModel.DefaultFontSize);
}
/// <summary>
/// Renders the series on the specified render context.
/// </summary>
/// <param name="rc">The rendering context.</param>
/// <param name="model">The model.</param>
public override void Render(IRenderContext rc, PlotModel model)
{
if (this.XAxis == null)
{
return;
}
this.symbolPosition = model.PlotArea.Bottom;
this.symbolSize = rc.MeasureText(this.Symbol, this.ActualFont, this.ActualFontSize);
foreach (var v in this.Values)
{
if (double.IsNaN(v) || v < this.XAxis.ActualMinimum || v > this.XAxis.ActualMaximum)
{
continue;
}
double x = this.XAxis.Transform(v);
rc.DrawText(
new ScreenPoint(x, this.symbolPosition),
this.Symbol,
this.Color,
this.ActualFont,
this.ActualFontSize,
this.ActualFontWeight,
0,
HorizontalAlignment.Center,
VerticalAlignment.Bottom);
}
}
public FeatureText(string text, ScreenPoint sp, OxySize size, ScreenPoint sourcePosition)
{
Text = text;
Position = sp;
Size = size;
this.SourcePosition = sourcePosition;
}
/// <summary>
/// Gets the coordinates of the (rotated) background rectangle.
/// </summary>
/// <param name="position">The position.</param>
/// <param name="size">The size.</param>
/// <param name="padding">The padding.</param>
/// <param name="rotation">The rotation.</param>
/// <param name="horizontalAlignment">The horizontal alignment.</param>
/// <param name="verticalAlignment">The vertical alignment.</param>
/// <returns>The background rectangle coordinates.</returns>
private static IList <ScreenPoint> GetTextBounds(
ScreenPoint position,
OxySize size,
OxyThickness padding,
double rotation,
HorizontalAlignment horizontalAlignment,
VerticalAlignment verticalAlignment)
{
double left, right, top, bottom;
switch (horizontalAlignment)
{
case HorizontalAlignment.Center:
left = -size.Width * 0.5;
right = -left;
break;
case HorizontalAlignment.Right:
left = -size.Width;
right = 0;
break;
default:
left = 0;
right = size.Width;
break;
}
switch (verticalAlignment)
{
case VerticalAlignment.Middle:
top = -size.Height * 0.5;
bottom = -top;
break;
case VerticalAlignment.Bottom:
top = -size.Height;
bottom = 0;
break;
default:
top = 0;
bottom = size.Height;
break;
}
double cost = Math.Cos(rotation / 180 * Math.PI);
double sint = Math.Sin(rotation / 180 * Math.PI);
var u = new ScreenVector(cost, sint);
var v = new ScreenVector(-sint, cost);
var polygon = new ScreenPoint[4];
polygon[0] = position + (u * (left - padding.Left)) + (v * (top - padding.Top));
polygon[1] = position + (u * (right + padding.Right)) + (v * (top - padding.Top));
polygon[2] = position + (u * (right + padding.Right)) + (v * (bottom + padding.Bottom));
polygon[3] = position + (u * (left - padding.Left)) + (v * (bottom + padding.Bottom));
return(polygon);
}
private void RenderSpacing(IRenderContext rc, double x, ICollection <BarItem> items)
{
var mult = items.Count == 12 ? 2d : 1d;
var tl = this.Transform(-x, items.Count / mult - .5);
var br = this.Transform(x, -.5);
var size = new OxySize(Math.Abs(tl.X - br.X) - 20, Math.Abs(br.Y - tl.Y) - 10);
rc.DrawRectangle(new OxyRect(new ScreenPoint(tl.X + 10, tl.Y + 5), size), OxyColors.Transparent, OxyColors.Black, 1, EdgeRenderingMode.Adaptive);
}
public void CheckPolygonCalculation(double x, double y, double angle, HorizontalAlignment ha, VerticalAlignment va, double expectedX0, double expectedY0, double expectedX2, double expectedY2)
{
const double Delta = 1;
var size = new OxySize(40, 50);
var p = size.GetPolygon(new ScreenPoint(x, y), angle, ha, va).ToArray();
Assert.That(p[0].X, Is.EqualTo(expectedX0).Within(Delta));
Assert.That(p[0].Y, Is.EqualTo(expectedY0).Within(Delta));
Assert.That(p[2].X, Is.EqualTo(expectedX2).Within(Delta));
Assert.That(p[2].Y, Is.EqualTo(expectedY2).Within(Delta));
}
protected void UpdateDataLeft(IRenderContext rc, PlotModel model)
{
_features = null;
_grid_lines = new List <List <ScreenPoint> >();
double left = _bound.Left;
//render label
FeatureTextIntersector feature_text_intersector = new FeatureTextIntersector();
foreach (double major_label_value in _points)
{
string text = FormatString(major_label_value);
OxySize text_size = rc.MeasureText(text);
double x = left - MajorTickSize - AxisTickToLabelDistance - text_size.Width;
double y = this.Transform(major_label_value);
if (double.IsNaN(y) || y < _bound.Top || y > _bound.Bottom)
{
continue;
}
double y_center = y - text_size.Height / 2;
feature_text_intersector.Add(new FeatureText(text, new ScreenPoint(x, y_center), text_size, new ScreenPoint(left, y)));
}
_features = feature_text_intersector.DiscaredIntersection();
double text_width = 0;
if (_features != null)
{
foreach (FeatureText feature in _features)
{
List <ScreenPoint> major_line = new List <ScreenPoint>();
ScreenPoint source = feature.SourcePosition;
ScreenPoint left_sp = new ScreenPoint(source.X - MajorTickSize, source.Y);
major_line.Add(source);
major_line.Add(left_sp);
_grid_lines.Add(major_line);
if (text_width < feature.Size.Width)
{
text_width = feature.Size.Width;
}
}
}
if (!string.IsNullOrEmpty(Title))
{
OxySize title_size = rc.MeasureText(Title, label_font);
double title_x = _label_bond.Left + AxisTitleDistance;
double title_y = _bound.Top + _bound.Height / 2;
_title_position = new ScreenPoint(title_x, title_y);
}
}
public override void Render(OxyPlot.IRenderContext rc, PlotModel model1, AxisLayer axisLayer, int pass)
{
PlotModel model = this.PlotModel;
if (Theme != null)
{
OxyColor color = Convertor.ConvertColorToOxyColor(Theme.GetThemeColor());
TicklineColor = color;
TextColor = color;
TitleColor = color;
}
//base.Render(rc, model, axisLayer, pass);
IList <IList <ScreenPoint> > points = new List <IList <ScreenPoint> >();
FeatureTextIntersector intersector = new FeatureTextIntersector(FeatureTextIntersector.SortStyle.Horizontal, 3);
for (int i = 0; i < this.Labels.Count; i++)
{
string label = this.Labels[i];
OxySize text_size = rc.MeasureText(label, this.ActualFont, this.ActualFontSize, this.ActualFontWeight);
double x = Transform(i);
if (x < model.PlotArea.Left || x > model.PlotArea.Right)
{
continue;
}
double y = model.PlotArea.Bottom;
double y2 = y + 5;
IList <ScreenPoint> sps = new List <ScreenPoint>();
sps.Add(new ScreenPoint(x, y));
sps.Add(new ScreenPoint(x, model.PlotArea.Top));
points.Add(sps);
intersector.Add(new FeatureText(label, new ScreenPoint(x, y2), text_size));
// rc.DrawText(new ScreenPoint(x, y + 7), label, TextColor, this.ActualFont, this.ActualFontSize, this.ActualFontWeight, this.Angle, HorizontalAlignment.Left, VerticalAlignment.Middle);
}
List <FeatureText> fearures = intersector.DiscaredIntersection();
if (fearures != null)
{
foreach (FeatureText ft in fearures)
{
rc.DrawText(ft.Position, ft.Text, this.TextColor, this.ActualFont, this.ActualFontSize, this.ActualFontWeight, this.Angle, HorizontalAlignment.Center);
}
}
foreach (IList <ScreenPoint> line in points)
{
rc.DrawLine(line, this.ExtraGridlineColor, 1, LineStyle.Dash.GetDashArray());
}
}
/// <summary>
/// Asserts that the rectangle rotated by the specified angle and alignment equals the specified expected rectangle.
/// </summary>
/// <param name="expected">The expected.</param>
/// <param name="angle">The angle.</param>
/// <param name="horizontalAlignment">The horizontal alignment.</param>
/// <param name="verticalAlignment">The vertical alignment.</param>
private static void AssertBoundsRect(OxyRect expected, double angle, HorizontalAlignment horizontalAlignment, VerticalAlignment verticalAlignment)
{
var actual = new OxySize(40, 50).GetBounds(angle, horizontalAlignment, verticalAlignment);
const double Delta = 1;
var errorMessage = string.Format("{0} is not equal to {1} rotated by {2} angle when aligned {3} and {4}", expected, actual, angle, horizontalAlignment, verticalAlignment);
Assert.AreEqual(expected.Left, actual.Left, Delta, errorMessage);
Assert.AreEqual(expected.Top, actual.Top, Delta, errorMessage);
Assert.AreEqual(expected.Width, actual.Width, Delta, errorMessage);
Assert.AreEqual(expected.Height, actual.Height, Delta, errorMessage);
}
public void CheckPolygonCalculation(double x, double y, double angle, HorizontalAlignment ha, VerticalAlignment va, double expectedX0, double expectedY0, double expectedX2, double expectedY2)
{
const double Delta = 1;
var size = new OxySize(40, 50);
var p = size.GetPolygon(new ScreenPoint(x, y), angle, ha, va).ToArray();
Assert.That(p[0].X, Is.EqualTo(expectedX0).Within(Delta));
Assert.That(p[0].Y, Is.EqualTo(expectedY0).Within(Delta));
Assert.That(p[2].X, Is.EqualTo(expectedX2).Within(Delta));
Assert.That(p[2].Y, Is.EqualTo(expectedY2).Within(Delta));
}
/// <summary>
/// Measures the legend area and gets the legend size.
/// </summary>
/// <param name="rc">The rendering context.</param>
/// <param name="availableLegendArea">The area available to legend.</param>
public override OxySize GetLegendSize(IRenderContext rc, OxySize availableLegendArea)
{
var availableLegendWidth = availableLegendArea.Width;
var availableLegendHeight = availableLegendArea.Height;
// Calculate the size of the legend box
var legendSize = this.MeasureLegends(rc, new OxySize(Math.Max(0, availableLegendWidth), Math.Max(0, availableLegendHeight)));
// Ensure legend size is valid
legendSize = new OxySize(Math.Max(0, legendSize.Width), Math.Max(0, legendSize.Height));
return(legendSize);
}
/// <summary>
/// Draws text with metrics.
/// </summary>
/// <param name="text">The text.</param>
/// <param name="font">The font.</param>
/// <param name="fontSize">Size of the font.</param>
/// <param name="expectedWidth">The expected width.</param>
/// <param name="expectedHeight">The expected height.</param>
/// <param name="baseline">The baseline position.</param>
/// <param name="xheight">The x-height position.</param>
/// <param name="ascent">The ascent position.</param>
/// <param name="descent">The descent position.</param>
/// <param name="before">The before position.</param>
/// <param name="after">The after position.</param>
/// <param name="platform">The platform.</param>
/// <returns>
/// A plot model.
/// </returns>
private static PlotModel DrawTextWithMetrics(string text, string font, double fontSize, double expectedWidth, double expectedHeight, double baseline, double xheight, double ascent, double descent, double before, double after, string platform)
{
// http://msdn.microsoft.com/en-us/library/ms742190(v=vs.110).aspx
// http://msdn.microsoft.com/en-us/library/xwf9s90b(v=vs.110).aspx
// http://msdn.microsoft.com/en-us/library/windows/desktop/ms533824(v=vs.85).aspx
// https://developer.apple.com/library/mac/documentation/TextFonts/Conceptual/CocoaTextArchitecture/FontHandling/FontHandling.html
var model = new PlotModel();
model.Annotations.Add(
new DelegateAnnotation(
rc =>
{
var size = rc.MeasureText(text, font, fontSize);
var expectedSize = new OxySize(expectedWidth, expectedHeight);
rc.DrawText(new ScreenPoint(300, 50), "Font size: " + fontSize, OxyColors.Black, font, 12);
rc.DrawText(new ScreenPoint(300, 70), "Actual size: " + size.ToString("0.00", CultureInfo.InvariantCulture), OxyColors.Black, font, 12);
rc.DrawText(new ScreenPoint(300, 90), "Size on " + platform + ": " + expectedSize.ToString("0.00", CultureInfo.InvariantCulture), OxyColors.Green, font, 12);
var p = new ScreenPoint(20, 50);
rc.DrawText(p, text, OxyColors.Black, font, fontSize);
rc.FillCircle(p, 3, OxyColors.Black);
// actual bounds
rc.DrawRectangle(new OxyRect(p, size), OxyColors.Undefined, OxyColors.Black);
// Expected bounds (WPF)
rc.DrawRectangle(new OxyRect(p, expectedSize), OxyColors.Undefined, OxyColors.Green);
var color = OxyColor.FromAColor(180, OxyColors.Red);
var pen = new OxyPen(color);
// Expected vertical positions (WPF)
var x1 = p.X - 10;
var x2 = p.X + expectedSize.Width + 10;
rc.DrawLine(x1, baseline, x2, baseline, pen);
rc.DrawLine(x1, xheight, x2, xheight, pen);
rc.DrawLine(x1, ascent, x2, ascent, pen);
rc.DrawLine(x1, descent, x2, descent, pen);
// Expected horizonal positions (WPF)
var y1 = p.Y - 10;
var y2 = p.Y + expectedSize.Height + 10;
rc.DrawLine(before, y1, before, y2, pen);
rc.DrawLine(after, y1, after, y2, pen);
}));
model.MouseDown += (s, e) => Debug.WriteLine(e.Position);
return(model);
}
/// <summary>
/// Override private render method
/// <inheritdoc cref="PlotModel.RenderTitle"/>
/// </summary>
/// <param name="rc"></param>
private void RenderTitle(IRenderContext rc)
{
OxySize?maxSize = null;
if (ClipTitle)
{
maxSize = new OxySize(TitleArea.Width * TitleClippingLength, double.MaxValue);
}
var titleSize = rc.MeasureText(Title, ActualTitleFont, TitleFontSize, TitleFontWeight);
var x = (TitleArea.Left + TitleArea.Right) * 0.5;
var y = TitleArea.Top;
if (!string.IsNullOrEmpty(Title))
{
rc.SetToolTip(TitleToolTip);
rc.DrawMathText(
new ScreenPoint(x, y),
Title,
TitleColor.GetActualColor(TextColor),
ActualTitleFont,
TitleFontSize,
TitleFontWeight,
0,
HorizontalAlignment.Center,
VerticalAlignment.Top,
maxSize);
y += titleSize.Height + SubTitleMargin;
rc.SetToolTip(null);
}
if (!string.IsNullOrEmpty(Subtitle))
{
rc.DrawMathText(
new ScreenPoint(x, y),
Subtitle,
SubtitleColor.GetActualColor(TextColor),
ActualSubtitleFont,
SubtitleFontSize,
SubtitleFontWeight,
0,
HorizontalAlignment.Center,
VerticalAlignment.Top,
maxSize);
}
}
public override OxySize Measure(IRenderContext rc)
{
OxySize max_size = new OxySize(0, 0);
foreach (Axis item in _axes)
{
OxySize cur = item.Measure(rc);
if (max_size.Width < cur.Width)
{
max_size = cur;
}
}
return(max_size);
}
public OxySize MeasureText(string text, string fontFamily = "",
double fontSize = 10, double fontWeight = 500)
{
FontDescription desc = new FontDescription();
OxySize size = new OxySize();
int width, height;
desc.Family = fontFamily;
desc.Size = (int)fontSize;
desc.Weight = PangoWeightFromDouble(fontWeight);
layout.SetMarkup(GLib.Markup.EscapeText(text));
layout.GetPixelSize(out width, out height);
size.Width = (double)width;
size.Height = (double)height;
return(size);
}
void RenderCurrentLegend(IRenderContext rc, PointModel model)
{
if (model == null || this.XAxis == null || this.YAxis == null)
{
return;
}
if (!(this.XAxis is IGetXLabel))
{
return;
}
string label = ((IGetXLabel)this.XAxis).GetLabel(model.Index);
if (string.IsNullOrEmpty(label))
{
return;
}
string text = this.Title + "\n" + label + " " + FormatString(model.Value);
OxySize text_size = rc.MeasureText(text);
double x = this.XAxis.Transform(model.Index);
double y = this.YAxis.Transform(double.Parse(model.Value));
OxyRect bound = ((IAxis)this.YAxis).Bound;
if (y - text_size.Height - 2 * TextPadding < bound.Top)
{
}
else
{
y = y - text_size.Height - 2 * TextPadding;
}
if (x + text_size.Width + 2 * TextPadding > bound.Right)
{
x -= text_size.Width + 2 * TextPadding;
}
else
{
}
rc.DrawRectangle(new OxyRect(x, y, text_size.Width + 2 * TextPadding, text_size.Height + 2 * TextPadding), OxyColors.LimeGreen, OxyColors.Transparent);/// OxyColor.FromArgb(255,138,187,74)
rc.DrawText(new ScreenPoint(x + TextPadding, y + TextPadding), text, OxyColors.White);
}
/// <summary>
/// Renders the item label.
/// </summary>
/// <param name="rc">The render context</param>
/// <param name="clippingRect">The clipping rectangle</param>
/// <param name="rect">The rectangle of the item.</param>
/// <param name="value">The value of the label.</param>
/// <param name="index">The index of the bar item.</param>
protected override void RenderLabel(IRenderContext rc, OxyRect clippingRect, OxyRect rect, double value, int index)
{
var s = FormatValue(value, index);
HorizontalAlignment ha;
ScreenPoint pt;
switch (this.LabelPlacement)
{
case LabelPlacement.Inside:
pt = new ScreenPoint(rect.Right - this.LabelMargin, (rect.Top + rect.Bottom) / 2);
ha = HorizontalAlignment.Right;
break;
case LabelPlacement.Middle:
pt = new ScreenPoint((rect.Left + rect.Right) / 2, (rect.Top + rect.Bottom) / 2);
ha = HorizontalAlignment.Center;
break;
case LabelPlacement.Base:
pt = new ScreenPoint(rect.Left + this.LabelMargin, (rect.Top + rect.Bottom) / 2);
ha = HorizontalAlignment.Left;
break;
default: // Outside
pt = new ScreenPoint(rect.Right + this.LabelMargin, (rect.Top + rect.Bottom) / 2);
ha = HorizontalAlignment.Left;
break;
}
var maxSize = new OxySize(rect.Width - 2 * this.LabelMargin, rect.Height);
rc.DrawClippedText(
clippingRect,
pt,
s,
this.ActualTextColor,
this.ActualFont,
this.ActualFontSize,
this.ActualFontWeight,
0,
ha,
VerticalAlignment.Middle,
maxSize);
}
OxyRect CreateRect(ScreenPoint sp, OxySize size, double angle)
{
double width = size.Width + 2 * _padding;
double height = size.Height + 2 * _padding;
double x2 = sp.X + Math.Cos(angle) * width;
double y2 = sp.Y + width * Math.Sin(angle);
double x3 = sp.X - height * Math.Sin(angle);
double y3 = sp.Y + height * Math.Cos(angle);
double x4 = x2 - height * Math.Sin(angle);
double y4 = y2 + height * Math.Cos(angle);
double left, right, top, bottom;
GetMinMax(out left, out right, sp.X, x2, x3, x4);
GetMinMax(out top, out bottom, sp.Y, y2, y3, y4);
return(new OxyRect(left, top, right - left, bottom - top));
}
/// <summary>
/// Renders the axis title.
/// </summary>
/// <param name="axis">The axis.</param>
/// <param name="titlePosition">The title position.</param>
protected virtual void RenderAxisTitle(Axis axis, double titlePosition)
{
if (string.IsNullOrEmpty(axis.ActualTitle))
{
return;
}
bool isHorizontal = axis.IsHorizontal();
OxySize?maxSize = null;
if (axis.ClipTitle)
{
// Calculate the title clipping dimensions
double screenLength = isHorizontal
? Math.Abs(axis.ScreenMax.X - axis.ScreenMin.X)
: Math.Abs(axis.ScreenMax.Y - axis.ScreenMin.Y);
maxSize = new OxySize(screenLength * axis.TitleClippingLength, double.MaxValue);
}
double angle = -90;
var halign = HorizontalAlignment.Center;
var valign = VerticalAlignment.Top;
var lpt = this.GetAxisTitlePositionAndAlignment(axis, titlePosition, ref angle, ref halign, ref valign);
this.RenderContext.DrawMathText(
lpt,
axis.ActualTitle,
axis.ActualTitleColor,
axis.ActualTitleFont,
axis.ActualTitleFontSize,
axis.ActualTitleFontWeight,
angle,
halign,
valign,
maxSize);
}
/// <summary>
/// Measures the text.
/// </summary>
/// <param name="text">The text.</param>
/// <param name="fontFamily">The font family.</param>
/// <param name="fontSize">Size of the font.</param>
/// <param name="fontWeight">The font weight.</param>
/// <returns>The text size.</returns>
public OxySize MeasureText(string text, string fontFamily, double fontSize, double fontWeight)
{
if (string.IsNullOrWhiteSpace(fontFamily))
{
fontFamily = "Arial";
}
if (text == null)
{
text = string.Empty;
}
var format = new TextFormat(this.dwtFactory, fontFamily, GetFontWeight(fontWeight), FontStyle.Normal, FontStretch.Normal, (float)fontSize);
var layout = new TextLayout(this.dwtFactory, text, format, 1000f, 1000f);
var res = new OxySize(layout.Metrics.Width, layout.Metrics.Height);
format.Dispose();
layout.Dispose();
return(res);
}
/// <summary>
/// Draws the text.
/// </summary>
/// <param name="p">The p.</param>
/// <param name="text">The text.</param>
/// <param name="c">The c.</param>
/// <param name="fontFamily">The font family.</param>
/// <param name="fontSize">Size of the font.</param>
/// <param name="fontWeight">The font weight.</param>
/// <param name="rotate">The rotate.</param>
/// <param name="halign">The horizontal alignment.</param>
/// <param name="valign">The vertical alignment.</param>
/// <param name="maxSize">Size of the max.</param>
public override void DrawText(ScreenPoint p, string text, OxyColor c, string fontFamily, double fontSize, double fontWeight, double rotate, OxyPlot.HorizontalAlignment halign, OxyPlot.VerticalAlignment valign, OxySize?maxSize)
{
if (string.IsNullOrEmpty(text))
{
return;
}
string[] array = Regex.Split(text, "\r\n");
if (valign == OxyPlot.VerticalAlignment.Bottom)
{
for (int i = array.Length - 1; i >= 0; i--)
{
string text2 = array[i];
OxySize oxySize = this.MeasureText(text2, fontFamily, fontSize, fontWeight);
this.w.WriteText(p, text2, c, fontFamily, fontSize, fontWeight, rotate, halign, valign);
p += new ScreenVector(Math.Sin(rotate / 180.0 * 3.1415926535897931) * oxySize.Height, Math.Cos(rotate / 180.0 * 3.1415926535897931) * oxySize.Height);
}
return;
}
string[] array2 = array;
if (text.Contains("."))
{
p += new ScreenVector(0.0, 8.0);
}
else
{
p += new ScreenVector(0.0, 14.0);
}
for (int j = 0; j < array2.Length; j++)
{
string text3 = array2[j];
OxySize oxySize2 = this.MeasureText(text3, fontFamily, fontSize, fontWeight);
this.w.WriteText(p, text3, c, fontFamily, fontSize, fontWeight, rotate, halign, valign);
p += new ScreenVector(-Math.Sin(rotate / 180.0 * 3.1415926535897931) * oxySize2.Height, Math.Cos(rotate / 180.0 * 3.1415926535897931) * oxySize2.Height);
}
}
/// <summary>
/// Draws the text.
/// </summary>
/// <param name="p">The position of the text.</param>
/// <param name="text">The text.</param>
/// <param name="fill">The fill color.</param>
/// <param name="fontFamily">The font family.</param>
/// <param name="fontSize">Size of the font.</param>
/// <param name="fontWeight">The font weight.</param>
/// <param name="rotate">The rotation angle.</param>
/// <param name="halign">The horizontal alignment.</param>
/// <param name="valign">The vertical alignment.</param>
/// <param name="maxSize">The maximum size of the text.</param>
public override void DrawText(ScreenPoint p, string text, OxyColor fill, string fontFamily, double fontSize, double fontWeight, double rotate, HorizontalAlignment halign, VerticalAlignment valign, OxySize? maxSize)
{
this.paint.Reset();
{
this.paint.TextSize = this.Convert(fontSize);
this.SetFill(fill);
float width;
float height;
float lineHeight, delta;
this.GetFontMetrics(this.paint, out lineHeight, out delta);
if (maxSize.HasValue || halign != HorizontalAlignment.Left || valign != VerticalAlignment.Bottom)
{
this.paint.GetTextBounds(text, 0, text.Length, this.bounds);
width = this.bounds.Left + this.bounds.Width();
height = lineHeight;
}
else
{
width = height = 0f;
}
if (maxSize.HasValue)
{
var maxWidth = this.Convert(maxSize.Value.Width);
var maxHeight = this.Convert(maxSize.Value.Height);
if (width > maxWidth)
{
width = maxWidth;
}
if (height > maxHeight)
{
height = maxHeight;
}
}
var dx = halign == HorizontalAlignment.Left ? 0d : (halign == HorizontalAlignment.Center ? -width * 0.5 : -width);
var dy = valign == VerticalAlignment.Bottom ? 0d : (valign == VerticalAlignment.Middle ? height * 0.5 : height);
var x0 = -this.bounds.Left;
var y0 = delta;
this.canvas.Save();
this.canvas.Translate(this.Convert(p.X), this.Convert(p.Y));
this.canvas.Rotate((float)rotate);
this.canvas.Translate((float)dx + x0, (float)dy + y0);
if (maxSize.HasValue)
{
var x1 = -x0;
var y1 = -height - y0;
this.canvas.ClipRect(x1, y1, x1 + width, y1 + height);
this.canvas.Translate(0, lineHeight - height);
}
this.canvas.DrawText(text, 0, 0, this.paint);
this.canvas.Restore();
}
}
/// <summary>
/// Measures the size of the axis (maximum axis label width/height).
/// </summary>
/// <param name="rc">The render context.</param>
/// <returns>The size of the axis.</returns>
public virtual OxySize Measure(IRenderContext rc)
{
IList<double> majorTickValues;
IList<double> minorTickValues;
IList<double> majorLabelValues;
this.GetTickValues(out majorLabelValues, out majorTickValues, out minorTickValues);
var maximumTextSize = new OxySize();
foreach (double v in majorLabelValues)
{
string s = this.FormatValue(v);
var size = rc.MeasureText(s, this.ActualFont, this.ActualFontSize, this.ActualFontWeight);
if (size.Width > maximumTextSize.Width)
{
maximumTextSize.Width = size.Width;
}
if (size.Height > maximumTextSize.Height)
{
maximumTextSize.Height = size.Height;
}
}
var labelTextSize = rc.MeasureText(
this.ActualTitle, this.ActualFont, this.ActualFontSize, this.ActualFontWeight);
double width = 0;
double height = 0;
if (this.IsVertical())
{
switch (this.TickStyle)
{
case TickStyle.Outside:
width += this.MajorTickSize;
break;
case TickStyle.Crossing:
width += this.MajorTickSize * 0.75;
break;
}
width += this.AxisDistance;
width += this.AxisTickToLabelDistance;
width += maximumTextSize.Width;
if (labelTextSize.Height > 0)
{
width += this.AxisTitleDistance;
width += labelTextSize.Height;
}
}
else
{
// caution: this includes AngleAxis because Position=None
switch (this.TickStyle)
{
case TickStyle.Outside:
height += this.MajorTickSize;
break;
case TickStyle.Crossing:
height += this.MajorTickSize * 0.75;
break;
}
height += this.AxisDistance;
height += this.AxisTickToLabelDistance;
height += maximumTextSize.Height;
if (labelTextSize.Height > 0)
{
height += this.AxisTitleDistance;
height += labelTextSize.Height;
}
}
return new OxySize(width, height);
}
/// <summary>
/// Draws the text.
/// </summary>
/// <param name="p">The p.</param>
/// <param name="text">The text.</param>
/// <param name="fill">The fill color.</param>
/// <param name="fontFamily">The font family.</param>
/// <param name="fontSize">Size of the font.</param>
/// <param name="fontWeight">The font weight.</param>
/// <param name="rotate">The rotation angle.</param>
/// <param name="halign">The horizontal alignment.</param>
/// <param name="valign">The vertical alignment.</param>
/// <param name="maxSize">The maximum size of the text.</param>
public override void DrawText(
ScreenPoint p,
string text,
OxyColor fill,
string fontFamily,
double fontSize,
double fontWeight,
double rotate,
HorizontalAlignment halign,
VerticalAlignment valign,
OxySize? maxSize)
{
Pango.Layout layout = Pango.CairoHelper.CreateLayout(this.g);
Pango.FontDescription font = new Pango.FontDescription();
font.Family = fontFamily;
font.Weight = (fontWeight >= 700) ? Pango.Weight.Bold : Pango.Weight.Normal;
font.AbsoluteSize = (int)(fontSize * Pango.Scale.PangoScale);
layout.FontDescription = font;
layout.SetText(text);
Pango.Rectangle inkRect;
Pango.Rectangle size;
layout.GetExtents(out inkRect, out size);
size.Width /= (int)Pango.Scale.PangoScale;
size.Height /= (int)Pango.Scale.PangoScale;
if (maxSize != null)
{
size.Width = Math.Min(size.Width, (int)maxSize.Value.Width);
size.Height = Math.Min(size.Height, (int)maxSize.Value.Height);
}
this.g.Save();
double dx = 0;
if (halign == HorizontalAlignment.Center)
{
dx = -size.Width / 2;
}
if (halign == HorizontalAlignment.Right)
{
dx = -size.Width;
}
double dy = 0;
if (valign == VerticalAlignment.Middle)
{
dy = -size.Height / 2;
}
if (valign == VerticalAlignment.Bottom)
{
dy = -size.Height;
}
this.g.Translate(p.X, p.Y);
if (Math.Abs(rotate) > double.Epsilon)
{
this.g.Rotate(rotate * Math.PI / 180.0);
}
this.g.Translate(dx, dy);
g.Rectangle(0, 0, size.Width + 0.1f, size.Height + 0.1f);
g.Clip();
this.g.SetSourceColor(fill);
Pango.CairoHelper.ShowLayout(this.g, layout);
this.g.Restore();
}
protected void RenderAxis(IRenderContext rc, PlotModel model, OxyColor grid_color)
{
//render title
if (!string.IsNullOrEmpty(Title))
{
using (Font font = new System.Drawing.Font("宋体", (float)ActualFontSize))
{
OxySize title_size = rc.MeasureText(Title, label_font, ActualFontSize, ActualFontWeight);
ScreenPoint sp = new ScreenPoint(_title_position.X, _title_position.Y);
//rc.DrawText(sp, Title, TitleColor,label_font, ActualFontSize, ActualFontWeight, -90, HorizontalAlignment.Center, VerticalAlignment.Bottom);
//rc.DrawText(new ScreenPoint(100,100), Title, TitleColor, label_font, ActualFontSize, ActualFontWeight,10, HorizontalAlignment.Center, VerticalAlignment.Middle);
double y = sp.Y + title_size.Width / 2;
var field = rc.GetType().GetField("g", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance);
object o = field.GetValue(rc);
Graphics g = (Graphics)o;
g.TranslateTransform((float)sp.X, (float)y);
g.RotateTransform(-90);
using (Brush brush = new SolidBrush(Helper.ConvertOxyColorToColor(TitleColor)))
{
g.DrawString(Title, font, brush, new PointF(0, 0));
}
g.ResetTransform();
}
}
if (double.IsNaN(Maximum) || double.IsNaN(Minimum))
{
RenderYAxisGrids(rc, this, null, grid_color);
}
else
{
if (_features != null)
{
foreach (FeatureText feature in _features)
{
rc.DrawText(feature.Position, feature.Text, TextColor);
}
if (GridLineVisible)
{
RenderYAxisGrids(rc, this, _features, grid_color);
}
else
{
double y0 = this.Transform(0);
if (y0 >= this.Bound.Top && y0 <= this.Bound.Bottom)
{
IList <ScreenPoint> sps = new List <ScreenPoint>();
ScreenPoint sp1 = new ScreenPoint(this.Bound.Left, y0);
ScreenPoint sp2 = new ScreenPoint(this.Bound.Right, y0);
sps.Add(sp1);
sps.Add(sp2);
rc.DrawLine(sps, grid_color, 3);
}
}
}
if (_grid_lines != null)
{
foreach (List <ScreenPoint> line in _grid_lines)
{
if (line != null)
{
rc.DrawLine(line, TicklineColor);
}
}
}
}
}
/// <summary>
/// Draws the text.
/// </summary>
/// <param name="p">The p.</param>
/// <param name="text">The text.</param>
/// <param name="fill">The fill color.</param>
/// <param name="fontFamily">The font family.</param>
/// <param name="fontSize">Size of the font.</param>
/// <param name="fontWeight">The font weight.</param>
/// <param name="rotate">The rotation angle.</param>
/// <param name="halign">The horizontal alignment.</param>
/// <param name="valign">The vertical alignment.</param>
/// <param name="maxSize">The maximum size of the text.</param>
public override void DrawText(
ScreenPoint p,
string text,
OxyColor fill,
string fontFamily,
double fontSize,
double fontWeight,
double rotate,
HorizontalAlignment halign,
VerticalAlignment valign,
OxySize? maxSize)
{
var fw = fontWeight >= 700 ? FontWeight.Bold : FontWeight.Normal;
this.g.Save();
this.g.SetFontSize(fontSize * FontsizeFactor);
this.g.SelectFontFace(fontFamily, FontSlant.Normal, fw);
// using (var sf = new StringFormat { Alignment = StringAlignment.Near })
var size = this.g.TextExtents(text);
if (maxSize != null)
{
size.Width = Math.Min(size.Width, maxSize.Value.Width);
size.Height = Math.Min(size.Height, maxSize.Value.Height);
}
double dx = 0;
if (halign == HorizontalAlignment.Center)
{
dx = -size.Width / 2;
}
if (halign == HorizontalAlignment.Right)
{
dx = -size.Width;
}
double dy = 0;
if (valign == VerticalAlignment.Middle)
{
dy = -size.Height / 2;
}
if (valign == VerticalAlignment.Bottom)
{
dy = -size.Height;
}
this.g.Translate(p.X, p.Y);
if (Math.Abs(rotate) > double.Epsilon)
{
this.g.Rotate(rotate * Math.PI / 180.0);
}
this.g.Translate(dx, dy);
// g.Rectangle(0, 0, size.Width + 0.1f, size.Height + 0.1f);
this.g.MoveTo(0, size.Height + 0.1f);
this.g.SetSourceColor(fill);
this.g.ShowText(text);
this.g.Restore();
}
/// <summary>
/// Draws the text.
/// </summary>
/// <param name="p">The position of the text.</param>
/// <param name="text">The text.</param>
/// <param name="fill">The fill color.</param>
/// <param name="fontFamily">The font family.</param>
/// <param name="fontSize">Size of the font.</param>
/// <param name="fontWeight">The font weight.</param>
/// <param name="rotate">The rotation angle.</param>
/// <param name="halign">The horizontal alignment.</param>
/// <param name="valign">The vertical alignment.</param>
/// <param name="maxSize">The maximum size of the text.</param>
public override void DrawText(ScreenPoint p, string text, OxyColor fill, string fontFamily, double fontSize, double fontWeight, double rotate, HorizontalAlignment halign, VerticalAlignment valign, OxySize? maxSize)
{
// do nothing
}
/// <summary>
/// Draws the text.
/// </summary>
/// <param name="p">The position of the text.</param>
/// <param name="text">The text.</param>
/// <param name="fill">The fill color.</param>
/// <param name="fontFamily">The font family.</param>
/// <param name="fontSize">Size of the font.</param>
/// <param name="fontWeight">The font weight.</param>
/// <param name="rotate">The rotation angle.</param>
/// <param name="halign">The horizontal alignment.</param>
/// <param name="valign">The vertical alignment.</param>
/// <param name="maxSize">The maximum size of the text.</param>
public override void DrawText(ScreenPoint p, string text, OxyColor fill, string fontFamily, double fontSize, double fontWeight, double rotate, HorizontalAlignment halign, VerticalAlignment valign, OxySize? maxSize)
{
this.paint.Reset();
{
this.paint.AntiAlias = true;
this.paint.TextSize = this.Convert(fontSize);
this.paint.Color = fill.ToColor();
float width;
float height;
if (maxSize.HasValue || halign != HorizontalAlignment.Left || valign != VerticalAlignment.Bottom)
{
this.paint.GetTextBounds(text, 0, text.Length, this.bounds);
width = this.bounds.Width();
height = this.bounds.Height();
}
else
{
width = height = 0f;
}
if (maxSize.HasValue)
{
var maxWidth = this.Convert(maxSize.Value.Width);
var maxHeight = this.Convert(maxSize.Value.Height);
if (width > maxWidth)
{
width = maxWidth;
}
if (height > maxSize.Value.Height)
{
height = maxHeight;
}
}
var dx = halign == HorizontalAlignment.Left ? 0d : (halign == HorizontalAlignment.Center ? -width * 0.5 : -width);
var dy = valign == VerticalAlignment.Bottom ? 0d : (valign == VerticalAlignment.Middle ? height * 0.5 : height);
this.canvas.Save();
this.canvas.Translate(this.Convert(p.X), this.Convert(p.Y));
this.canvas.Rotate((float)rotate);
this.canvas.Translate((float)dx, (float)dy);
if (maxSize.HasValue)
{
this.canvas.ClipRect(0, -height, this.Convert(maxSize.Value.Width), 0);
}
this.canvas.DrawText(text, 0, 0, this.paint);
this.canvas.Restore();
}
}
/// <summary>
/// Renders the legend for the specified series.
/// </summary>
/// <param name="rc">The render context.</param>
/// <param name="s">The series.</param>
/// <param name="rect">The position and size of the legend.</param>
private void RenderLegend(IRenderContext rc, Series.Series s, OxyRect rect)
{
var actualItemAlignment = this.LegendItemAlignment;
if (this.LegendOrientation == LegendOrientation.Horizontal)
{
// center/right alignment is not supported for horizontal orientation
actualItemAlignment = HorizontalAlignment.Left;
}
double x = rect.Left;
switch (actualItemAlignment)
{
case HorizontalAlignment.Center:
x = (rect.Left + rect.Right) / 2;
if (this.LegendSymbolPlacement == LegendSymbolPlacement.Left)
{
x -= (this.LegendSymbolLength + this.LegendSymbolMargin) / 2;
}
else
{
x -= (this.LegendSymbolLength + this.LegendSymbolMargin) / 2;
}
break;
case HorizontalAlignment.Right:
x = rect.Right;
// if (LegendSymbolPlacement == LegendSymbolPlacement.Right)
x -= this.LegendSymbolLength + this.LegendSymbolMargin;
break;
}
if (this.LegendSymbolPlacement == LegendSymbolPlacement.Left)
{
x += this.LegendSymbolLength + this.LegendSymbolMargin;
}
double y = rect.Top;
var maxsize = new OxySize(Math.Max(rect.Width - this.LegendSymbolLength - this.LegendSymbolMargin, 0), rect.Height);
var actualLegendFontSize = double.IsNaN(this.LegendFontSize) ? this.PlotModel.DefaultFontSize : this.LegendFontSize;
var legendTextColor = s.IsVisible ? this.LegendTextColor : this.SeriesInvisibleTextColor;
rc.SetToolTip(s.ToolTip);
var textSize = rc.DrawMathText(
new ScreenPoint(x, y),
s.Title,
legendTextColor.GetActualColor(this.PlotModel.TextColor),
this.LegendFont ?? this.PlotModel.DefaultFont,
actualLegendFontSize,
this.LegendFontWeight,
0,
actualItemAlignment,
VerticalAlignment.Top,
maxsize,
true);
this.SeriesPosMap.Add(s, new OxyRect(new ScreenPoint(x, y), textSize));
double x0 = x;
switch (actualItemAlignment)
{
case HorizontalAlignment.Center:
x0 = x - (textSize.Width * 0.5);
break;
case HorizontalAlignment.Right:
x0 = x - textSize.Width;
break;
}
if (s.IsVisible)
{
var symbolRect =
new OxyRect(
this.LegendSymbolPlacement == LegendSymbolPlacement.Right
? x0 + textSize.Width + this.LegendSymbolMargin
: x0 - this.LegendSymbolMargin - this.LegendSymbolLength,
rect.Top,
this.LegendSymbolLength,
textSize.Height);
s.RenderLegend(rc, symbolRect);
}
rc.SetToolTip(null);
}
/// <summary>
/// Gets the coordinates of the (rotated) background rectangle.
/// </summary>
/// <param name="position">
/// The position.
/// </param>
/// <param name="size">
/// The size.
/// </param>
/// <param name="padding">
/// The padding.
/// </param>
/// <param name="rotation">
/// The rotation.
/// </param>
/// <param name="horizontalAlignment">
/// The horizontal alignment.
/// </param>
/// <param name="verticalAlignment">
/// The vertical alignment.
/// </param>
/// <returns>
/// The background rectangle coordinates.
/// </returns>
private static IList<ScreenPoint> GetTextBounds(
ScreenPoint position,
OxySize size,
OxyThickness padding,
double rotation,
HorizontalAlignment horizontalAlignment,
VerticalAlignment verticalAlignment)
{
double left, right, top, bottom;
switch (horizontalAlignment)
{
case HorizontalAlignment.Center:
left = -size.Width * 0.5;
right = -left;
break;
case HorizontalAlignment.Right:
left = -size.Width;
right = 0;
break;
default:
left = 0;
right = size.Width;
break;
}
switch (verticalAlignment)
{
case VerticalAlignment.Middle:
top = -size.Height * 0.5;
bottom = -top;
break;
case VerticalAlignment.Bottom:
top = -size.Height;
bottom = 0;
break;
default:
top = 0;
bottom = size.Height;
break;
}
double cost = Math.Cos(rotation / 180 * Math.PI);
double sint = Math.Sin(rotation / 180 * Math.PI);
var u = new ScreenVector(cost, sint);
var v = new ScreenVector(-sint, cost);
var polygon = new ScreenPoint[4];
polygon[0] = position + (u * (left - padding.Left)) + (v * (top - padding.Top));
polygon[1] = position + (u * (right + padding.Right)) + (v * (top - padding.Top));
polygon[2] = position + (u * (right + padding.Right)) + (v * (bottom + padding.Bottom));
polygon[3] = position + (u * (left - padding.Left)) + (v * (bottom + padding.Bottom));
return polygon;
}
/// <summary>
/// Draws the text.
/// </summary>
/// <param name="p">The position of the text.</param>
/// <param name="text">The text.</param>
/// <param name="fill">The fill color.</param>
/// <param name="fontFamily">The font family.</param>
/// <param name="fontSize">Size of the font.</param>
/// <param name="fontWeight">The font weight.</param>
/// <param name="rotate">The rotation angle.</param>
/// <param name="halign">The horizontal alignment.</param>
/// <param name="valign">The vertical alignment.</param>
/// <param name="maxSize">The maximum size of the text.</param>
public override void DrawText(ScreenPoint p, string text, OxyColor fill, string fontFamily, double fontSize, double fontWeight, double rotate, HorizontalAlignment halign, VerticalAlignment valign, OxySize? maxSize)
{
if (string.IsNullOrEmpty (text)) {
return;
}
var fontName = GetActualFontName (fontFamily, fontWeight);
var font = this.GetCachedFont (fontName, fontSize);
using (var attributedString = new NSAttributedString (text, new CTStringAttributes {
ForegroundColorFromContext = true,
Font = font
})) {
using (var textLine = new CTLine (attributedString)) {
float width;
float height;
this.gctx.TextPosition = new PointF (0, 0);
float lineHeight, delta;
this.GetFontMetrics (font, out lineHeight, out delta);
var bounds = textLine.GetImageBounds (this.gctx);
var x0 = 0;
var y0 = delta;
if (maxSize.HasValue || halign != HorizontalAlignment.Left || valign != VerticalAlignment.Bottom) {
width = bounds.Left + bounds.Width;
height = lineHeight;
} else {
width = height = 0f;
}
if (maxSize.HasValue) {
if (width > maxSize.Value.Width) {
width = (float)maxSize.Value.Width;
}
if (height > maxSize.Value.Height) {
height = (float)maxSize.Value.Height;
}
}
var dx = halign == HorizontalAlignment.Left ? 0d : (halign == HorizontalAlignment.Center ? -width * 0.5 : -width);
var dy = valign == VerticalAlignment.Bottom ? 0d : (valign == VerticalAlignment.Middle ? height * 0.5 : height);
this.SetFill (fill);
this.SetAlias (false);
this.gctx.SaveState ();
this.gctx.TranslateCTM ((float)p.X, (float)p.Y);
if (!rotate.Equals (0)) {
this.gctx.RotateCTM ((float)(rotate / 180 * Math.PI));
}
this.gctx.TranslateCTM ((float)dx + x0, (float)dy + y0);
this.gctx.ScaleCTM (1f, -1f);
if (maxSize.HasValue) {
var clipRect = new RectangleF (-x0, y0, (float)Math.Ceiling (width), (float)Math.Ceiling (height));
this.gctx.ClipToRect (clipRect);
}
textLine.Draw (this.gctx);
this.gctx.RestoreState ();
}
}
}
public override void Render(IRenderContext rc, PlotModel model1, AxisLayer axisLayer, int pass)
{
if (pass == 1)
{
return;
}
#if DEBUG_MAP
Debug.WriteLine("render mul axes " + this.Name);
#endif
PlotModel model = this.PlotModel;
for (int i = 0; i < 2; i++)
{
bool render = i == 1;
List <IAxis> left_axes = GetVisibleAxes(AxisPosition.Left);
List <IAxis> right_axes = GetVisibleAxes(AxisPosition.Right);
////List<IAxis> bottom_axes = GetVisibleAxes(AxisPosition.Bottom);
OxySize left_size = GetAxesSize(rc, left_axes);
OxySize right_size = GetAxesSize(rc, right_axes);
#if DEBUG_MAP
Debug.WriteLine(string.Format("left size:{0},{1}", left_size.Width, left_size.Height));
Debug.WriteLine(string.Format("right size:{0},{1}", right_size.Width, right_size.Height));
#endif
bool right_grid_visible = true;
if (left_axes != null && left_axes.Count <IAxis>() > 0)
{
right_grid_visible = false;
}
//draw region
double top = model.PlotArea.Top;
double bottom = model.PlotArea.Bottom;
double left_axes_right = model1.PlotAndAxisArea.Right - right_size.Width;
double left_axes_left = left_size.Width;
for (int k = 0; k < model.Axes.Count; k++)
{
IMeasureTop measure_top = model.Axes[k] as IMeasureTop;
if (measure_top == null)
{
continue;
}
OxySize size = measure_top.MeasureTop(rc, model1);
if (render)
{
measure_top.RenderTop(rc, model1, new OxyRect(left_axes_left, top, left_axes_right - left_axes_left, size.Height));
}
top += size.Height;
}
OxyRect region_bound = new OxyRect(left_axes_left, top, left_axes_right - left_axes_left, bottom - top);
OxyRect left_label_bound = new OxyRect(model.PlotAndAxisArea.Left, top, left_size.Width, bottom - top);
RenderAxes(model1, rc, left_axes, region_bound, left_label_bound, RegionPadding, true, render);
//assign right axes
/////OxyRect right_region_bound = new OxyRect(left_axes_left, top, left_axes_right - left_axes_left, bottom - top);
OxyRect right_label_bound = new OxyRect(left_axes_right, top, right_size.Width, bottom - top);
RenderAxes(model1, rc, right_axes, region_bound, right_label_bound, RegionPadding, right_grid_visible, render);
}
}
/// <summary>
/// Draws the text.
/// </summary>
/// <param name="p">The p.</param>
/// <param name="text">The text.</param>
/// <param name="fill">The fill color.</param>
/// <param name="fontFamily">The font family.</param>
/// <param name="fontSize">Size of the font.</param>
/// <param name="fontWeight">The font weight.</param>
/// <param name="rotate">The rotation angle.</param>
/// <param name="halign">The horizontal alignment.</param>
/// <param name="valign">The vertical alignment.</param>
/// <param name="maxSize">The maximum size of the text.</param>
public override void DrawText(
ScreenPoint p,
string text,
OxyColor fill,
string fontFamily,
double fontSize,
double fontWeight,
double rotate,
HorizontalAlignment halign,
VerticalAlignment valign,
OxySize? maxSize)
{
if (text == null)
{
return;
}
var fs = XFontStyle.Regular;
if (fontWeight > FontWeights.Normal)
{
fs = XFontStyle.Bold;
}
var font = new XFont(fontFamily, (float)fontSize * FontsizeFactor, fs);
var size = this.g.MeasureString(text, font);
#if SILVERLIGHT
// Correct the height, MeasureString returns 2x height
size.Height *= 0.5;
#endif
if (maxSize != null)
{
if (size.Width > maxSize.Value.Width)
{
size.Width = Math.Max(maxSize.Value.Width, 0);
}
if (size.Height > maxSize.Value.Height)
{
size.Height = Math.Max(maxSize.Value.Height, 0);
}
}
double dx = 0;
if (halign == HorizontalAlignment.Center)
{
dx = -size.Width / 2;
}
if (halign == HorizontalAlignment.Right)
{
dx = -size.Width;
}
double dy = 0;
if (valign == VerticalAlignment.Middle)
{
dy = -size.Height / 2;
}
if (valign == VerticalAlignment.Bottom)
{
dy = -size.Height;
}
var state = this.g.Save();
this.g.TranslateTransform(dx, dy);
if (Math.Abs(rotate) > double.Epsilon)
{
this.g.RotateAtTransform((float)rotate, new XPoint((float)p.X + (float)(size.Width / 2.0), (float)p.Y));
}
this.g.TranslateTransform((float)p.X, (float)p.Y);
var layoutRectangle = new XRect(0, 0, size.Width, size.Height);
var sf = new XStringFormat { Alignment = XStringAlignment.Near, LineAlignment = XLineAlignment.Near };
this.g.DrawString(text, font, ToBrush(fill), layoutRectangle, sf);
this.g.Restore(state);
}
/// <summary>
/// Draws the text.
/// </summary>
/// <param name="p">The position.</param>
/// <param name="text">The text.</param>
/// <param name="fill">The fill color.</param>
/// <param name="fontFamily">The font family.</param>
/// <param name="fontSize">Size of the font.</param>
/// <param name="fontWeight">The font weight.</param>
/// <param name="rotate">The rotation angle.</param>
/// <param name="halign">The horizontal alignment.</param>
/// <param name="valign">The vertical alignment.</param>
/// <param name="maxSize">The maximum size of the text.</param>
public void DrawText(
ScreenPoint p,
string text,
OxyColor fill,
string fontFamily,
double fontSize,
double fontWeight,
double rotate,
OxyPlot.HorizontalAlignment halign,
OxyPlot.VerticalAlignment valign,
OxySize? maxSize)
{
if (string.IsNullOrWhiteSpace(fontFamily))
{
fontFamily = "Arial";
}
if (text == null)
{
text = string.Empty;
}
var format = new TextFormat(this.dwtFactory, fontFamily, GetFontWeight(fontWeight), FontStyle.Normal, FontStretch.Normal, (float)fontSize);
var maxWidth = 1000f;
var maxHeight = 1000f;
if (maxSize != null)
{
maxHeight = (float)maxSize.Value.Height;
maxWidth = (float)maxSize.Value.Width;
}
var layout = new TextLayout(this.dwtFactory, text, format, maxWidth, maxHeight);
var size = new Size2F(layout.Metrics.Width, layout.Metrics.Height);
if (maxSize != null)
{
if (size.Width > maxSize.Value.Width)
{
size.Width = (float)maxSize.Value.Width;
}
if (size.Height > maxSize.Value.Height)
{
size.Height = (float)maxSize.Value.Height;
}
}
float dx = 0;
if (halign == OxyPlot.HorizontalAlignment.Center)
{
dx = -size.Width / 2;
}
if (halign == OxyPlot.HorizontalAlignment.Right)
{
dx = -size.Width;
}
float dy = 0;
if (valign == OxyPlot.VerticalAlignment.Middle)
{
dy = -size.Height / 2;
}
if (valign == OxyPlot.VerticalAlignment.Bottom)
{
dy = -size.Height;
}
this.renderUnits.Add(new TextRenderUnit(layout, this.GetBrush(fill), Matrix3x2.Translation(dx, dy) * Matrix3x2.Rotation((float)rotate) * Matrix3x2.Translation(p.ToVector2())));
format.Dispose();
}
/// <summary>
/// Draws text.
/// </summary>
/// <param name="p">The position.</param>
/// <param name="text">The text.</param>
/// <param name="fill">The text color.</param>
/// <param name="fontFamily">The font family.</param>
/// <param name="fontSize">Size of the font (in device independent units, 1/96 inch).</param>
/// <param name="fontWeight">The font weight.</param>
/// <param name="rotate">The rotation angle.</param>
/// <param name="halign">The horizontal alignment.</param>
/// <param name="valign">The vertical alignment.</param>
/// <param name="maxSize">The maximum size of the text (in device independent units, 1/96 inch).</param>
public override void DrawText(ScreenPoint p,
string text,
OxyColor fill,
string fontFamily,
double fontSize,
double fontWeight,
double rotate,
HorizontalAlignment halign,
VerticalAlignment valign,
OxySize? maxSize)
{
Context.Save ();
var layout = new TextLayout ();
layout.Font = GetCachedFont (fontFamily, fontSize, fontWeight);
layout.Text = text;
var size = layout.GetSize ();
if (maxSize != null) {
size.Width = Math.Min (size.Width, maxSize.Value.Width);
size.Height = Math.Min (size.Height, maxSize.Value.Height);
}
double dx = 0;
if (halign == HorizontalAlignment.Center) {
dx = -size.Width / 2;
}
if (halign == HorizontalAlignment.Right) {
dx = -size.Width;
}
double dy = 0;
if (valign == VerticalAlignment.Middle) {
dy = -size.Height / 2;
}
if (valign == VerticalAlignment.Bottom) {
dy = -size.Height;
}
Context.Translate (p.X, p.Y);
if (Math.Abs (rotate) > double.Epsilon) {
Context.Rotate (rotate);
}
Context.Translate (dx, dy);
Context.SetColor (fill.ToXwtColor ());
Context.DrawTextLayout (layout, 0, 0);
Context.Restore ();
}
/// <summary>
/// Measures the text.
/// </summary>
/// <param name="text">The text.</param>
/// <param name="fontFamily">The font family.</param>
/// <param name="fontSize">Size of the font.</param>
/// <param name="fontWeight">The font weight.</param>
/// <returns>The text size.</returns>
public OxySize MeasureText(string text, string fontFamily, double fontSize, double fontWeight)
{
if (string.IsNullOrWhiteSpace(fontFamily))
{
fontFamily = "Arial";
}
if (text == null)
{
text = string.Empty;
}
var format = new TextFormat(this.dwtFactory, fontFamily, GetFontWeight(fontWeight), FontStyle.Normal, FontStretch.Normal, (float)fontSize);
var layout = new TextLayout(this.dwtFactory, text, format, 1000f, 1000f);
var res = new OxySize(layout.Metrics.Width, layout.Metrics.Height);
format.Dispose();
layout.Dispose();
return res;
}
/// <summary>
/// Draws the text.
/// </summary>
/// <param name="p">The position.</param>
/// <param name="text">The text.</param>
/// <param name="fill">The fill color.</param>
/// <param name="fontFamily">The font family.</param>
/// <param name="fontSize">Size of the font.</param>
/// <param name="fontWeight">The font weight.</param>
/// <param name="rotate">The rotation angle.</param>
/// <param name="halign">The horizontal alignment.</param>
/// <param name="valign">The vertical alignment.</param>
/// <param name="maxSize">The maximum size of the text.</param>
public void DrawText(
ScreenPoint p,
string text,
OxyColor fill,
string fontFamily,
double fontSize,
double fontWeight,
double rotate,
HorizontalAlignment halign,
VerticalAlignment valign,
OxySize? maxSize)
{
var tb = new TextBlock { Text = text, Foreground = this.GetCachedBrush(fill) };
if (fontFamily != null)
{
tb.FontFamily = new FontFamily(fontFamily);
}
if (fontSize > 0)
{
tb.FontSize = fontSize;
}
if (fontWeight > 0)
{
tb.FontWeight = GetFontWeight(fontWeight);
}
double dx = 0;
double dy = 0;
if (maxSize != null || halign != HorizontalAlignment.Left || valign != VerticalAlignment.Top)
{
tb.Measure(new Size(1000, 1000));
var size = tb.DesiredSize;
if (maxSize != null)
{
if (size.Width > maxSize.Value.Width)
{
size.Width = Math.Max(maxSize.Value.Width, 0);
}
if (size.Height > maxSize.Value.Height)
{
size.Height = Math.Max(maxSize.Value.Height, 0);
}
tb.Width = size.Width;
tb.Height = size.Height;
}
if (halign == HorizontalAlignment.Center)
{
dx = -size.Width / 2;
}
if (halign == HorizontalAlignment.Right)
{
dx = -size.Width;
}
if (valign == VerticalAlignment.Middle)
{
dy = -size.Height / 2;
}
if (valign == VerticalAlignment.Bottom)
{
dy = -size.Height;
}
}
var transform = new TransformGroup();
transform.Children.Add(new TranslateTransform(dx, dy));
if (Math.Abs(rotate) > double.Epsilon)
{
transform.Children.Add(new RotateTransform(rotate));
}
transform.Children.Add(new TranslateTransform(p.X, p.Y));
tb.RenderTransform = transform;
tb.SetValue(RenderOptions.ClearTypeHintProperty, ClearTypeHint.Enabled);
this.ApplyTooltip(tb);
if (this.clip.HasValue)
{
// add a clipping container that is not rotated
var c = new Canvas();
c.Children.Add(tb);
this.Add(c);
}
else
{
this.Add(tb);
}
}
/// <summary>
/// Renders the axis title.
/// </summary>
/// <param name="axis">The axis.</param>
/// <param name="titlePosition">The title position.</param>
protected virtual void RenderAxisTitle(Axis axis, double titlePosition)
{
if (string.IsNullOrEmpty(axis.ActualTitle))
{
return;
}
bool isHorizontal = axis.IsHorizontal();
OxySize? maxSize = null;
if (axis.ClipTitle)
{
// Calculate the title clipping dimensions
double screenLength = isHorizontal
? Math.Abs(axis.ScreenMax.X - axis.ScreenMin.X)
: Math.Abs(axis.ScreenMax.Y - axis.ScreenMin.Y);
maxSize = new OxySize(screenLength * axis.TitleClippingLength, double.MaxValue);
}
double angle = -90;
var halign = HorizontalAlignment.Center;
var valign = VerticalAlignment.Top;
var lpt = this.GetAxisTitlePositionAndAlignment(axis, titlePosition, ref angle, ref halign, ref valign);
this.RenderContext.DrawMathText(
lpt,
axis.ActualTitle,
axis.ActualTitleColor,
axis.ActualTitleFont,
axis.ActualTitleFontSize,
axis.ActualTitleFontWeight,
angle,
halign,
valign,
maxSize);
}
/// <summary>
/// Asserts that the rectangle rotated by the specified angle and alignment equals the specified expected rectangle.
/// </summary>
/// <param name="expected">The expected.</param>
/// <param name="angle">The angle.</param>
/// <param name="horizontalAlignment">The horizontal alignment.</param>
/// <param name="verticalAlignment">The vertical alignment.</param>
private static void AssertBoundsRect(OxyRect expected, double angle, HorizontalAlignment horizontalAlignment, VerticalAlignment verticalAlignment)
{
var actual = new OxySize(40, 50).GetBounds(angle, horizontalAlignment, verticalAlignment);
const double Delta = 1;
var errorMessage = string.Format("{0} is not equal to {1} rotated by {2} angle when aligned {3} and {4}", expected, actual, angle, horizontalAlignment, verticalAlignment);
Assert.AreEqual(expected.Left, actual.Left, Delta, errorMessage);
Assert.AreEqual(expected.Top, actual.Top, Delta, errorMessage);
Assert.AreEqual(expected.Width, actual.Width, Delta, errorMessage);
Assert.AreEqual(expected.Height, actual.Height, Delta, errorMessage);
}
/// <summary>
/// Measures the legends.
/// </summary>
/// <param name="rc">The render context.</param>
/// <param name="availableSize">The available size for the legend box.</param>
/// <returns>The size of the legend box.</returns>
private OxySize MeasureLegends(IRenderContext rc, OxySize availableSize)
{
return(this.RenderOrMeasureLegends(rc, new OxyRect(0, 0, availableSize.Width, availableSize.Height), true));
}
public void DrawText(ScreenPoint p, string text, OxyColor fill, string fontFamily = null, double fontSize = 10, double fontWeight = 500, double rotate = 0, OxyPlot.HorizontalAlignment halign = HorizontalAlignment.Left, VerticalAlignment valign = VerticalAlignment.Top, OxySize? maxSize = new OxySize?())
{
using (var paint = new Paint())
{
paint.AntiAlias = true;
paint.TextSize = (float)fontSize;
paint.Color = fill.ToColor();
var bounds = new Rect();
paint.GetTextBounds(text, 0, text.Length, bounds);
float dx = 0;
if (halign == HorizontalAlignment.Center)
{
dx = -bounds.Width() / 2;
}
if (halign == HorizontalAlignment.Right)
{
dx = -bounds.Width();
}
float dy = 0;
if (valign == VerticalAlignment.Middle)
{
dy = +bounds.Height() / 2;
}
if (valign == VerticalAlignment.Top)
{
dy = bounds.Height();
}
canvas.Save();
canvas.Translate(dx, dy);
canvas.Rotate((float)rotate);
canvas.Translate((float)p.X, (float)p.Y);
canvas.DrawText(text, 0, 0, paint);
canvas.Restore();
}
}
/// <summary>
/// The draw text.
/// </summary>
/// <param name="p">
/// The p.
/// </param>
/// <param name="text">
/// The text.
/// </param>
/// <param name="fill">
/// The fill.
/// </param>
/// <param name="fontFamily">
/// The font family.
/// </param>
/// <param name="fontSize">
/// The font size.
/// </param>
/// <param name="fontWeight">
/// The font weight.
/// </param>
/// <param name="rotate">
/// The rotate.
/// </param>
/// <param name="halign">
/// The horizontal alignment.
/// </param>
/// <param name="valign">
/// The vertical alignment.
/// </param>
/// <param name="maxSize">
/// The maximum size of the text.
/// </param>
public void DrawText(
ScreenPoint p,
string text,
OxyColor fill,
string fontFamily,
double fontSize,
double fontWeight,
double rotate,
OxyPlot.HorizontalAlignment halign,
OxyPlot.VerticalAlignment valign,
OxySize? maxSize)
{
var tb = new TextBlock { Text = text, Foreground = fill.ToBrush() };
// tb.SetValue(TextOptions.TextHintingModeProperty, TextHintingMode.Animated);
if (fontFamily != null)
{
tb.FontFamily = new FontFamily(fontFamily);
}
if (fontSize > 0)
{
tb.FontSize = fontSize;
}
tb.FontWeight = GetFontWeight(fontWeight);
tb.Measure(new Size(1000, 1000));
double dx = 0;
if (halign == OxyPlot.HorizontalAlignment.Center)
{
dx = -tb.ActualWidth / 2;
}
if (halign == OxyPlot.HorizontalAlignment.Right)
{
dx = -tb.ActualWidth;
}
double dy = 0;
if (valign == OxyPlot.VerticalAlignment.Middle)
{
dy = -tb.ActualHeight / 2;
}
if (valign == OxyPlot.VerticalAlignment.Bottom)
{
dy = -tb.ActualHeight;
}
var transform = new TransformGroup();
transform.Children.Add(new TranslateTransform { X = (int)dx, Y = (int)dy });
if (!rotate.Equals(0.0))
{
transform.Children.Add(new RotateTransform { Angle = rotate });
}
transform.Children.Add(new TranslateTransform { X = (int)p.X, Y = (int)p.Y });
tb.RenderTransform = transform;
if (this.clip.HasValue)
{
// add a clipping container that is not rotated
var c = new Canvas();
c.Children.Add(tb);
this.Add(c);
}
else
{
this.Add(tb);
}
}
/// <summary>
/// Renders or measures the legends.
/// </summary>
/// <param name="rc">The render context.</param>
/// <param name="rect">Provides the available size if measuring, otherwise it provides the position and size of the legend.</param>
/// <param name="measureOnly">Specify if the size of the legend box should be measured only (not rendered).</param>
/// <returns>The size of the legend box.</returns>
private OxySize RenderOrMeasureLegends(IRenderContext rc, OxyRect rect, bool measureOnly = false)
{
// Render background and border around legend
if (!measureOnly && rect.Width > 0 && rect.Height > 0)
{
this.legendBox = rect;
rc.DrawRectangle(
rect,
this.LegendBackground,
this.LegendBorder,
this.LegendBorderThickness,
this.EdgeRenderingMode.GetActual(EdgeRenderingMode.PreferSharpness));
}
double availableWidth = rect.Width;
double availableHeight = rect.Height;
double x = this.LegendPadding;
double top = this.LegendPadding;
var size = new OxySize();
var actualLegendFontSize = double.IsNaN(this.LegendFontSize) ? this.PlotModel.DefaultFontSize : this.LegendFontSize;
var actualLegendTitleFontSize = double.IsNaN(this.LegendTitleFontSize) ? actualLegendFontSize : this.LegendTitleFontSize;
var actualGroupNameFontSize = double.IsNaN(this.GroupNameFontSize) ? actualLegendFontSize : this.GroupNameFontSize;
// Render/measure the legend title
if (!string.IsNullOrEmpty(this.LegendTitle))
{
OxySize titleSize;
if (measureOnly)
{
titleSize = rc.MeasureMathText(
this.LegendTitle,
this.LegendTitleFont ?? this.PlotModel.DefaultFont,
actualLegendTitleFontSize,
this.LegendTitleFontWeight);
}
else
{
titleSize = rc.DrawMathText(
new ScreenPoint(rect.Left + x, rect.Top + top),
this.LegendTitle,
this.LegendTitleColor.GetActualColor(this.PlotModel.TextColor),
this.LegendTitleFont ?? this.PlotModel.DefaultFont,
actualLegendTitleFontSize,
this.LegendTitleFontWeight,
0,
HorizontalAlignment.Left,
VerticalAlignment.Top,
null,
true);
}
top += titleSize.Height;
size = new OxySize(x + titleSize.Width + this.LegendPadding, top + titleSize.Height);
}
double y = top;
double lineHeight = 0;
// tolerance for floating-point number comparisons
const double Epsilon = 1e-3;
// the maximum item with in the column being rendered (only used for vertical orientation)
double maxItemWidth = 0;
var items = this.LegendItemOrder == LegendItemOrder.Reverse
? this.PlotModel.Series.Reverse().Where(s => s.RenderInLegend && s.LegendKey == this.Key)
: this.PlotModel.Series.Where(s => s.RenderInLegend && s.LegendKey == this.Key);
List <string> itemGroupNames = new List <string>();
foreach (Series.Series s in items)
{
if (!itemGroupNames.Contains(s.SeriesGroupName))
{
itemGroupNames.Add(s.SeriesGroupName);
}
}
// Clear the series position map.
this.SeriesPosMap.Clear();
// When orientation is vertical and alignment is center or right, the items cannot be rendered before
// the max item width has been calculated. Render the items for each column, and at the end.
var seriesToRender = new Dictionary <Series.Series, OxyRect>();
Action renderItems = () =>
{
List <string> usedGroupNames = new List <string>();
foreach (var sr in seriesToRender)
{
var itemRect = sr.Value;
var itemSeries = sr.Key;
if (!string.IsNullOrEmpty(itemSeries.SeriesGroupName) && !usedGroupNames.Contains(itemSeries.SeriesGroupName))
{
usedGroupNames.Add(itemSeries.SeriesGroupName);
var groupNameTextSize = rc.MeasureMathText(itemSeries.SeriesGroupName, this.GroupNameFont ?? this.PlotModel.DefaultFont, actualGroupNameFontSize, this.GroupNameFontWeight);
double ypos = itemRect.Top;
double xpos = itemRect.Left;
if (this.LegendOrientation == LegendOrientation.Vertical)
{
ypos -= (groupNameTextSize.Height + this.LegendLineSpacing / 2);
}
else
{
xpos -= (groupNameTextSize.Width + this.LegendItemSpacing / 2);
}
rc.DrawMathText(
new ScreenPoint(xpos, ypos),
itemSeries.SeriesGroupName,
this.LegendTitleColor.GetActualColor(this.PlotModel.TextColor),
this.GroupNameFont ?? this.PlotModel.DefaultFont,
actualGroupNameFontSize,
this.GroupNameFontWeight,
0,
HorizontalAlignment.Left,
VerticalAlignment.Top,
null,
true);
}
double rwidth = availableWidth;
if (itemRect.Left + rwidth + this.LegendPadding > rect.Left + availableWidth)
{
rwidth = rect.Left + availableWidth - itemRect.Left - this.LegendPadding;
}
double rheight = itemRect.Height;
if (rect.Top + rheight + this.LegendPadding > rect.Top + availableHeight)
{
rheight = rect.Top + availableHeight - rect.Top - this.LegendPadding;
}
var r = new OxyRect(itemRect.Left, itemRect.Top, Math.Max(rwidth, 0), Math.Max(rheight, 0));
this.RenderLegend(rc, itemSeries, r);
}
usedGroupNames.Clear();
seriesToRender.Clear();
};
foreach (var g in itemGroupNames)
{
var itemGroup = items.Where(i => i.SeriesGroupName == g);
OxySize groupNameTextSize = new OxySize(0, 0);
if (itemGroup.Count() > 0 && !string.IsNullOrEmpty(g))
{
groupNameTextSize = rc.MeasureMathText(g, this.GroupNameFont ?? this.PlotModel.DefaultFont, actualGroupNameFontSize, this.GroupNameFontWeight);
if (this.LegendOrientation == LegendOrientation.Vertical)
{
y += groupNameTextSize.Height;
}
else
{
x += groupNameTextSize.Width;
}
}
int count = 0;
foreach (var s in itemGroup)
{
// Skip series with empty title
if (string.IsNullOrEmpty(s.Title) || !s.RenderInLegend)
{
continue;
}
var textSize = rc.MeasureMathText(s.Title, this.LegendFont ?? this.PlotModel.DefaultFont, actualLegendFontSize, this.LegendFontWeight);
double itemWidth = this.LegendSymbolLength + this.LegendSymbolMargin + textSize.Width;
double itemHeight = textSize.Height;
if (this.LegendOrientation == LegendOrientation.Horizontal)
{
// Add spacing between items
if (x > this.LegendPadding)
{
x += this.LegendItemSpacing;
}
// Check if the item is too large to fit within the available width
if (x + itemWidth > availableWidth - this.LegendPadding + Epsilon)
{
// new line
x = this.LegendPadding;
if (count == 0 && groupNameTextSize.Width > 0)
{
x += (groupNameTextSize.Width + this.LegendItemSpacing);
}
y += lineHeight + this.LegendLineSpacing;
lineHeight = 0;
}
// Update the max size of the current line
lineHeight = Math.Max(lineHeight, textSize.Height);
if (!measureOnly)
{
seriesToRender.Add(s, new OxyRect(rect.Left + x, rect.Top + y, itemWidth, itemHeight));
}
x += itemWidth;
x = Math.Max(groupNameTextSize.Width, x);
// Update the max width and height of the legend box
size = new OxySize(Math.Max(size.Width, x), Math.Max(size.Height, y + textSize.Height));
}
else
{
if (y + itemHeight > availableHeight - this.LegendPadding + Epsilon)
{
renderItems();
y = top + groupNameTextSize.Height;
x += maxItemWidth + this.LegendColumnSpacing;
maxItemWidth = 0;
}
if (!measureOnly)
{
seriesToRender.Add(s, new OxyRect(rect.Left + x, rect.Top + y, itemWidth, itemHeight));
}
y += itemHeight + this.LegendLineSpacing;
// Update the max size of the items in the current column
maxItemWidth = Math.Max(maxItemWidth, itemWidth);
// Update the max width and height of the legend box
size = new OxySize(Math.Max(size.Width, x + itemWidth), Math.Max(size.Height, y));
}
count++;
}
renderItems();
}
if (size.Width > 0)
{
size = new OxySize(size.Width + this.LegendPadding, size.Height);
}
if (size.Height > 0)
{
size = new OxySize(size.Width, size.Height + this.LegendPadding);
}
if (size.Width > availableWidth)
{
size = new OxySize(availableWidth, size.Height);
}
if (size.Height > availableHeight)
{
size = new OxySize(size.Width, availableHeight);
}
if (!double.IsNaN(this.LegendMaxWidth) && size.Width > this.LegendMaxWidth)
{
size = new OxySize(this.LegendMaxWidth, size.Height);
}
if (!double.IsNaN(this.LegendMaxHeight) && size.Height > this.LegendMaxHeight)
{
size = new OxySize(size.Width, this.LegendMaxHeight);
}
return(size);
}
public override void DrawText (ScreenPoint p, string text, OxyColor fill, string fontFamily, double fontSize, double fontWeight, double rotate, HorizontalTextAlign halign, VerticalTextAlign valign, OxySize? maxSize)
{
//This method needs work not 100% around vertical alignment.
if(string.IsNullOrEmpty(text))
{
return;
}
fontFamily = GetDefaultFont(fontFamily);
if (fontWeight >= 700)
{
//fs = FontStyle.Bold;
}
//var textSize = MeasureText(text, fontFamily, fontSize, fontWeight);
if (maxSize != null)
{
// if (size.Width > maxSize.Value.Width)
// {
// size.Width = (float)maxSize.Value.Width;
// }
//
// if (size.Height > maxSize.Value.Height)
// {
// size.Height = (float)maxSize.Value.Height;
// }
}
gctx.SaveState();
gctx.SelectFont(fontFamily, (float)fontSize, CGTextEncoding.MacRoman);
ToColor(fill).SetFill();
gctx.SetTextDrawingMode(CGTextDrawingMode.Fill);
var tfont = UIFont.FromName (fontFamily,(float)fontSize);
NSString nsstr = new NSString(text);
SizeF sz = nsstr.StringSize(tfont);
float y = (float)(p.Y);
float x = (float)(p.X);
switch(halign)
{
case HorizontalTextAlign.Left:
x = (float)(p.X);
break;
case HorizontalTextAlign.Right:
x = (float)(p.X - sz.Width);
break;
case HorizontalTextAlign.Center:
x = (float)(p.X - (sz.Width / 2));
break;
}
switch(valign)
{
case VerticalTextAlign.Bottom:
y -= (float)fontSize;
break;
case VerticalTextAlign.Top:
// y += (float)fontSize;
break;
case VerticalTextAlign.Middle:
y -= (float)(fontSize / 2);
break;
}
RectangleF rect = new RectangleF(x,y,sz.Width,sz.Height);
nsstr.DrawString( rect, tfont);
gctx.RestoreState();
//Console.WriteLine("X:{0:###} Y:{1:###} HA:{2}:{3:###} VA:{4}:{5:###} TW:{6:###} - {7}", p.X, p.Y, halign, x, valign, y, textSize.Width, text);
}
/// <summary>
/// Gets the rectangle of the legend box.
/// </summary>
/// <param name="legendSize">Size of the legend box.</param>
/// <returns>A rectangle.</returns>
public override OxyRect GetLegendRectangle(OxySize legendSize)
{
double top = 0;
double left = 0;
if (this.LegendPlacement == LegendPlacement.Outside)
{
switch (this.LegendPosition)
{
case LegendPosition.LeftTop:
case LegendPosition.LeftMiddle:
case LegendPosition.LeftBottom:
left = this.PlotModel.PlotAndAxisArea.Left - legendSize.Width - this.LegendMargin;
break;
case LegendPosition.RightTop:
case LegendPosition.RightMiddle:
case LegendPosition.RightBottom:
left = this.PlotModel.PlotAndAxisArea.Right + this.LegendMargin;
break;
case LegendPosition.TopLeft:
case LegendPosition.TopCenter:
case LegendPosition.TopRight:
top = this.PlotModel.PlotAndAxisArea.Top - legendSize.Height - this.LegendMargin;
break;
case LegendPosition.BottomLeft:
case LegendPosition.BottomCenter:
case LegendPosition.BottomRight:
top = this.PlotModel.PlotAndAxisArea.Bottom + this.LegendMargin;
break;
}
switch (this.LegendPosition)
{
case LegendPosition.TopLeft:
case LegendPosition.BottomLeft:
left = this.PlotModel.PlotArea.Left;
break;
case LegendPosition.TopRight:
case LegendPosition.BottomRight:
left = this.PlotModel.PlotArea.Right - legendSize.Width;
break;
case LegendPosition.LeftTop:
case LegendPosition.RightTop:
top = this.PlotModel.PlotArea.Top;
break;
case LegendPosition.LeftBottom:
case LegendPosition.RightBottom:
top = this.PlotModel.PlotArea.Bottom - legendSize.Height;
break;
case LegendPosition.LeftMiddle:
case LegendPosition.RightMiddle:
top = (this.PlotModel.PlotArea.Top + this.PlotModel.PlotArea.Bottom - legendSize.Height) * 0.5;
break;
case LegendPosition.TopCenter:
case LegendPosition.BottomCenter:
left = (this.PlotModel.PlotArea.Left + this.PlotModel.PlotArea.Right - legendSize.Width) * 0.5;
break;
}
}
else
{
switch (this.LegendPosition)
{
case LegendPosition.LeftTop:
case LegendPosition.LeftMiddle:
case LegendPosition.LeftBottom:
left = this.PlotModel.PlotArea.Left + this.LegendMargin;
break;
case LegendPosition.RightTop:
case LegendPosition.RightMiddle:
case LegendPosition.RightBottom:
left = this.PlotModel.PlotArea.Right - legendSize.Width - this.LegendMargin;
break;
case LegendPosition.TopLeft:
case LegendPosition.TopCenter:
case LegendPosition.TopRight:
top = this.PlotModel.PlotArea.Top + this.LegendMargin;
break;
case LegendPosition.BottomLeft:
case LegendPosition.BottomCenter:
case LegendPosition.BottomRight:
top = this.PlotModel.PlotArea.Bottom - legendSize.Height - this.LegendMargin;
break;
}
switch (this.LegendPosition)
{
case LegendPosition.TopLeft:
case LegendPosition.BottomLeft:
left = this.PlotModel.PlotArea.Left + this.LegendMargin;
break;
case LegendPosition.TopRight:
case LegendPosition.BottomRight:
left = this.PlotModel.PlotArea.Right - legendSize.Width - this.LegendMargin;
break;
case LegendPosition.LeftTop:
case LegendPosition.RightTop:
top = this.PlotModel.PlotArea.Top + this.LegendMargin;
break;
case LegendPosition.LeftBottom:
case LegendPosition.RightBottom:
top = this.PlotModel.PlotArea.Bottom - legendSize.Height - this.LegendMargin;
break;
case LegendPosition.LeftMiddle:
case LegendPosition.RightMiddle:
top = (this.PlotModel.PlotArea.Top + this.PlotModel.PlotArea.Bottom - legendSize.Height) * 0.5;
break;
case LegendPosition.TopCenter:
case LegendPosition.BottomCenter:
left = (this.PlotModel.PlotArea.Left + this.PlotModel.PlotArea.Right - legendSize.Width) * 0.5;
break;
}
}
return(new OxyRect(left, top, legendSize.Width, legendSize.Height));
}
/// <summary>
/// Draws the text.
/// </summary>
/// <param name="p">The position of the text.</param>
/// <param name="text">The text.</param>
/// <param name="fill">The fill color.</param>
/// <param name="fontFamily">The font family.</param>
/// <param name="fontSize">Size of the font.</param>
/// <param name="fontWeight">The font weight.</param>
/// <param name="rotate">The rotation angle.</param>
/// <param name="halign">The horizontal alignment.</param>
/// <param name="valign">The vertical alignment.</param>
/// <param name="maxSize">The maximum size of the text.</param>
public override void DrawText(ScreenPoint p, string text, OxyColor fill, string fontFamily, double fontSize, double fontWeight, double rotate, HorizontalAlignment halign, VerticalAlignment valign, OxySize? maxSize)
{
if (string.IsNullOrEmpty(text) || fontFamily == null)
{
return;
}
var fontName = GetActualFontName(fontFamily, fontWeight);
using (var attributedString = new NSAttributedString(text, new CTStringAttributes { ForegroundColorFromContext = true, Font = new CTFont(fontName, (float)fontSize) }))
{
using (var textLine = new CTLine(attributedString))
{
float width;
float height;
if (maxSize.HasValue || halign != HorizontalAlignment.Left || valign != VerticalAlignment.Bottom)
{
var bounds = textLine.GetImageBounds(this.gctx);
width = bounds.Width;
height = bounds.Height;
}
else
{
width = height = 0f;
}
if (maxSize.HasValue)
{
if (width > maxSize.Value.Width)
{
width = (float)maxSize.Value.Width;
}
if (height > maxSize.Value.Height)
{
height = (float)maxSize.Value.Height;
}
}
var x = p.X;
var y = p.Y;
this.gctx.SaveState();
this.SetFill(fill);
this.SetAlias(false);
this.gctx.SetTextDrawingMode(CGTextDrawingMode.Fill);
this.gctx.TextPosition = new PointF(0, 0);
var dx = halign == HorizontalAlignment.Left ? 0d : (halign == HorizontalAlignment.Center ? -width * 0.5 : -width);
var dy = valign == VerticalAlignment.Bottom ? 0d : (valign == VerticalAlignment.Middle ? height * 0.5 : height);
this.gctx.TranslateCTM((float)x, (float)y);
this.gctx.RotateCTM((float)(rotate / 180 * Math.PI));
this.gctx.TranslateCTM((float)dx, (float)dy);
this.gctx.ScaleCTM(1f, -1f);
if (maxSize.HasValue)
{
this.gctx.ClipToRect(new RectangleF(0, 0, width, height));
}
textLine.Draw(this.gctx);
this.gctx.RestoreState();
}
}
}
public override OxySize Measure(IRenderContext rc)
{
OxySize size = new OxySize(0, 0);
double total_width = 0;
double total_height = 0;
UpdateAutoPoints();
switch (Position)
{
case AxisPosition.Left:
UpdateDataLeft(rc, null);
break;
case AxisPosition.Right:
UpdateDataRight(rc, null);
break;
case AxisPosition.Top:
break;
case AxisPosition.Bottom:
break;
}
double text_width = 0, text_height = 0;
if (_features != null)
{
foreach (FeatureText major_label_value in _features)
{
string text = major_label_value.Text;
OxySize text_size = rc.MeasureText(text);
if (text_size.Width > text_width)
{
text_width = text_size.Width;
}
if (text_size.Height > text_height)
{
text_height = text_size.Height;
}
}
}
OxySize title_size = new OxySize(0, 0);
if (!string.IsNullOrEmpty(Title))
{
title_size = rc.MeasureText(Title, label_font);
}
switch (this.Position)
{
case AxisPosition.Left:
case AxisPosition.Right:
total_width = title_size.Height + text_width + MajorTickSize + AxisDistance + AxisTitleDistance + AxisTickToLabelDistance;
break;
case AxisPosition.Top:
case AxisPosition.Bottom:
total_height = title_size.Height + text_height + MajorTickSize + AxisDistance + AxisTitleDistance + AxisTickToLabelDistance;
break;
}
size = new OxySize(total_width, total_height);
return(size);
/////return base.Measure(rc);
}