public static sw.TextLayout GetTextLayout(Font font, string text)
{
var fontHandler = (FontHandler)font.Handler;
var textLayout = new sw.TextLayout(SDFactory.DirectWriteFactory, text, fontHandler.TextFormat, float.MaxValue, float.MaxValue);
if (font.Strikethrough)
{
textLayout.SetStrikethrough(true, new sw.TextRange(0, text.Length));
}
if (font.Underline)
{
textLayout.SetUnderline(true, new sw.TextRange(0, text.Length));
}
return(textLayout);
}
public DW.TextLayout GetTextLayout(Text.Font font, string text, float maxWidth)
{
var tl = new DW.TextLayout(
_factory,
text,
GetTextFormat(font),
maxWidth,
9999999
);
// ReSharper disable once SwitchStatementMissingSomeCases
switch (font.TextDecoration)
{
case TextDecoration.LineThrough:
tl.SetStrikethrough(true, new DW.TextRange(0, text.Length));
break;
case TextDecoration.Underline:
tl.SetUnderline(true, new DW.TextRange(0, text.Length));
break;
}
return(tl);
}
static void Main(string[] args)
{
mainForm = new RenderForm("Advanced Text rendering demo");
d2dFactory = new D2DFactory();
dwFactory = new DWriteFactory(SharpDX.DirectWrite.FactoryType.Shared);
textRenderer = new CustomColorRenderer();
CreateResources();
var bgcolor = new Color4(0.1f,0.1f,0.1f,1.0f);
//This is the offset where we start our text layout
Vector2 offset = new Vector2(202.0f,250.0f);
textFormat = new TextFormat(dwFactory, "Arial", FontWeight.Regular, FontStyle.Normal, 16.0f);
textLayout = new TextLayout(dwFactory, introText, textFormat, 300.0f, 200.0f);
//Apply various modifications to text
textLayout.SetUnderline(true, new TextRange(0, 5));
textLayout.SetDrawingEffect(greenBrush, new TextRange(10, 20));
textLayout.SetFontSize(24.0f, new TextRange(6, 4));
textLayout.SetFontFamilyName("Comic Sans MS", new TextRange(11,7));
//Measure full layout
var textSize = textLayout.Metrics;
fullTextBackground = new RectangleF(textSize.Left + offset.X, textSize.Top + offset.Y, textSize.Width, textSize.Height);
//Measure text to apply background to
var metrics = textLayout.HitTestTextRange(53, 4, 0.0f, 0.0f)[0];
textRegionRect = new RectangleF(metrics.Left + offset.X, metrics.Top + offset.Y, metrics.Width, metrics.Height);
//Assign render target and brush to our custom renderer
textRenderer.AssignResources(renderTarget, defaultBrush);
RenderLoop.Run(mainForm, () =>
{
renderTarget.BeginDraw();
renderTarget.Clear(bgcolor);
renderTarget.FillRectangle(fullTextBackground, backgroundBrush);
renderTarget.FillRectangle(textRegionRect, redBrush);
textLayout.Draw(textRenderer, offset.X, offset.Y);
try
{
renderTarget.EndDraw();
}
catch
{
CreateResources();
}
});
d2dFactory.Dispose();
dwFactory.Dispose();
renderTarget.Dispose();
}
/// <summary>
/// Inits the font family names from DirectWrite
/// </summary>
private void InitTextFormatLayout()
{
FontFamilyName = "Gabriola";
FontSize = 72;
FontText = "Client Drawing Effect Example!";
// Initialize a TextFormat
CurrentTextFormat = new TextFormat(FactoryDWrite, FontFamilyName, FontSize) { TextAlignment = TextAlignment.Center, ParagraphAlignment = ParagraphAlignment.Center };
CurrentTextLayout = new TextLayout(FactoryDWrite, FontText, CurrentTextFormat, ClientRectangle.Width, ClientRectangle.Height);
RedDrawingeffect = new ColorDrawingEffect(Color.Red);
BlueDrawingEffect = new ColorDrawingEffect(Color.Blue);
GreenDrawingEffect = new ColorDrawingEffect(Color.Green);
CurrentTextLayout.SetDrawingEffect(RedDrawingeffect, new TextRange(0, 14));
CurrentTextLayout.SetDrawingEffect(BlueDrawingEffect, new TextRange(14, 7));
CurrentTextLayout.SetDrawingEffect(GreenDrawingEffect, new TextRange(21, 8));
CurrentTextLayout.SetUnderline(true, new TextRange(0, 20));
CurrentTextLayout.SetStrikethrough(true, new TextRange(22, 7));
// Set a stylistic typography
using (var typo = new Typography(FactoryDWrite))
{
typo.AddFontFeature(new FontFeature(FontFeatureTag.StylisticSet7, 1));
CurrentTextLayout.SetTypography(typo, CurrentTextRange);
}
}