public TextElementState(TextElementState existing, TextElement element, RenderContext context)
{
props = element.Props;
format = existing?.format ?? new SharpDX.DirectWrite.TextFormat(Renderer.AssertRendererType(context.Renderer).fontFactory, "Times New Roman", 18);
layout = new SharpDX.DirectWrite.TextLayout(Renderer.AssertRendererType(context.Renderer).fontFactory, element.Props.Text, format, context.Bounds.Width, context.Bounds.Height);
textBrush = existing?.textBrush ?? new SharpDX.Direct2D1.SolidColorBrush(Renderer.AssertRendererType(context.Renderer).d2dTarget, new RawColor4(1, 1, 1, 1));
BoundingBox = new Bounds(x: context.Bounds.X, y: context.Bounds.Y, width: (int)layout.Metrics.Width, height: (int)layout.Metrics.Height);
context.Disposables.Add(format);
context.Disposables.Add(layout);
context.Disposables.Add(textBrush);
var childStates = new List <IElementState>();
foreach (var child in element.Children)
{
var locations = layout.HitTestTextRange(child.Location.StartIndex, child.Location.EndIndex - child.Location.StartIndex, BoundingBox.X, BoundingBox.Y);
if (locations.Length == 0)
{
continue;
}
var location = locations[0];
childStates.Add(child.Child.Update(null, context.WithBounds(new Bounds(x: (int)location.Left, y: (int)location.Top, width: (int)location.Width, height: (int)location.Height))));
}
children = childStates;
}
private void HandleDrawString(RenderTarget target, String str, System.Drawing.Rectangle rect, int color, System.Drawing.Font font = null)
{
if (String.IsNullOrEmpty(str))
{
return;
}
using (Brush brush = GetBrushFromColor(target, color))
{
SharpDX.DirectWrite.FontWeight weight = WeightFromFontStyle(font.Style);
SharpDX.DirectWrite.FontStyle style = StyleFromFontStyle(font.Style);
SharpDX.DirectWrite.TextFormat stringFormat = new SharpDX.DirectWrite.TextFormat(this.FactoryDWrite, font.FontFamily.Name, weight, style, font.Size);
stringFormat.TextAlignment = SharpDX.DirectWrite.TextAlignment.Leading;
stringFormat.WordWrapping = SharpDX.DirectWrite.WordWrapping.Wrap;
if (font == null)
{
font = this.Font;
}
int maxsize = this.Width;
if (pushedArgument.ContainsKey("TrimOutOfBounds") && ((bool)pushedArgument["TrimOutOfBounds"]))
{
using (SharpDX.DirectWrite.TextLayout layout = new SharpDX.DirectWrite.TextLayout(FactoryDWrite, str, stringFormat, maxsize, font.Height))
{
var lines = layout.GetLineMetrics();
StringBuilder strb = new StringBuilder();
var hittests = layout.HitTestTextRange(0, str.Length, rect.X, rect.Y);
int trimPos = -1;
for (int i = 0; i < hittests.Length; ++i)
{
if (hittests[i].Top + hittests[i].Height > rect.Bottom)
{
trimPos = hittests[i].TextPosition;
break;
}
}
String trimmedStr = str;
if (trimPos > -1)
{
trimmedStr = str.Substring(0, trimPos);
}
target.PushAxisAlignedClip(new RectangleF(rect.X, rect.Y, rect.Right, rect.Bottom), AntialiasMode.Aliased);
target.DrawText(trimmedStr, stringFormat, new RawRectangleF(rect.X, rect.Y, rect.Right, rect.Bottom), brush, DrawTextOptions.EnableColorFont | DrawTextOptions.Clip);
target.PopAxisAlignedClip();
}
}
else
{
target.PushAxisAlignedClip(new RectangleF(rect.X, rect.Y, rect.Right, rect.Bottom), AntialiasMode.Aliased);
target.DrawText(str, stringFormat, new RawRectangleF(rect.X, rect.Y, rect.Right, rect.Bottom), brush, DrawTextOptions.EnableColorFont | DrawTextOptions.Clip);
target.PopAxisAlignedClip();
}
stringFormat.Dispose();
}
}
