本文整理汇总了C#中IRenderContext.MeasureMathText方法的典型用法代码示例。如果您正苦于以下问题：C# IRenderContext.MeasureMathText方法的具体用法？C# IRenderContext.MeasureMathText怎么用？C# IRenderContext.MeasureMathText使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类IRenderContext的用法示例。
在下文中一共展示了IRenderContext.MeasureMathText方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: RenderOrMeasureLegends
/// <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)
{
rc.DrawRectangleAsPolygon(rect, this.LegendBackground, this.LegendBorder, this.LegendBorderThickness);
}
double availableWidth = rect.Width;
double availableHeight = rect.Height;
double x = this.LegendPadding;
double top = this.LegendPadding;
var size = new OxySize();
// Render/measure the legend title
if (!string.IsNullOrEmpty(this.LegendTitle))
{
OxySize titleSize;
if (measureOnly)
{
titleSize = rc.MeasureMathText(
this.LegendTitle,
this.LegendTitleFont ?? this.DefaultFont,
this.LegendTitleFontSize,
this.LegendTitleFontWeight);
}
else
{
titleSize = rc.DrawMathText(
new ScreenPoint(rect.Left + x, rect.Top + top),
this.LegendTitle,
this.LegendTitleColor.GetActualColor(this.TextColor),
this.LegendTitleFont ?? this.DefaultFont,
this.LegendTitleFontSize,
this.LegendTitleFontWeight,
0,
HorizontalAlignment.Left,
VerticalAlignment.Top,
null,
true);
}
top += titleSize.Height;
size.Width = x + titleSize.Width + this.LegendPadding;
size.Height = 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.Series.Reverse().Where(s => s.IsVisible)
: this.Series.Where(s => s.IsVisible);
// 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 = () =>
{
foreach (var sr in seriesToRender)
{
var itemRect = sr.Value;
var itemSeries = sr.Key;
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);
}
seriesToRender.Clear();
};
foreach (var s in items)
//.........这里部分代码省略.........