public void ShapedStringBuilder_ExpandsWhenCapacityIsExceeded()
{
var sstrb = new ShapedStringBuilder();
GivenAnUltravioletApplicationWithNoWindow()
.WithPlugin(new FreeTypeFontPlugin())
.WithContent(content =>
{
var font = content.Load <UltravioletFont>("Fonts/FiraSans");
using (var textShaper = new HarfBuzzTextShaper(content.Ultraviolet))
{
textShaper.SetUnicodeProperties(TextDirection.LeftToRight, TextScript.Latin, "en");
textShaper.Append("Hello, world!");
sstrb.Append(textShaper, font);
textShaper.Clear();
textShaper.SetUnicodeProperties(TextDirection.LeftToRight, TextScript.Latin, "en");
textShaper.Append(" Goodbye, world!");
sstrb.Append(textShaper, font);
}
})
.RunForOneFrame();
TheResultingValue(sstrb.Capacity).ShouldBe(36);
TheResultingValue(sstrb.Length).ShouldBe(29);
}
public void ShapedString_ProvidesCorrectSourceIndices_WhenGivenAnExplicitOffset()
{
var sstr1 = default(ShapedString);
var sstr2 = default(ShapedString);
GivenAnUltravioletApplicationWithNoWindow()
.WithPlugin(new FreeTypeFontPlugin())
.WithContent(content =>
{
var font = content.Load <UltravioletFont>("Fonts/NotoColorEmoji");
using (var textShaper = new HarfBuzzTextShaper(content.Ultraviolet))
{
textShaper.SetUnicodeProperties(TextDirection.LeftToRight, TextScript.Latin, "en");
textShaper.Append("Hello, world!");
sstr1 = textShaper.CreateShapedString(font.Regular);
textShaper.Clear();
textShaper.Append(" Goodbye, world!");
sstr2 = textShaper.CreateShapedString(font.Regular, "Hello, world!".Length);
}
})
.RunForOneFrame();
var chars1 = new ShapedChar[sstr1.Length];
sstr1.CopyTo(0, chars1, 0, sstr1.Length);
var sourceIndices1 = chars1.Select(x => x.SourceIndex).ToArray();
TheResultingCollection(sourceIndices1)
.ShouldBeExactly(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12);
var chars2 = new ShapedChar[sstr2.Length];
sstr2.CopyTo(0, chars2, 0, sstr2.Length);
var sourceIndices2 = chars2.Select(x => x.SourceIndex).ToArray();
TheResultingCollection(sourceIndices2)
.ShouldBeExactly(13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28);
}