public void FreeTypeFont_MeasuresShapedStringBuildersCorrectly()
{
var freetypeFont = default(FreeTypeFont);
var size = Size2.Zero;
GivenAnUltravioletApplication()
.WithPlugin(new FreeTypeFontPlugin())
.WithContent(content =>
{
freetypeFont = content.Load <FreeTypeFont>("Fonts/FiraSans");
using (var textShaper = new HarfBuzzTextShaper(content.Ultraviolet))
{
textShaper.SetUnicodeProperties(TextDirection.LeftToRight, TextScript.Latin, "en");
textShaper.Append("Hello, world!");
var str = new ShapedStringBuilder();
str.Append(textShaper, freetypeFont.Regular);
size = freetypeFont.Regular.MeasureShapedString(str);
}
})
.RunForOneFrame();
TheResultingValue(size.Width).ShouldBe(92);
TheResultingValue(size.Height).ShouldBe(20);
}
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_CombinesLigatures()
{
var sstr = 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("👨");
textShaper.Append("\u200D");
textShaper.Append("👩");
textShaper.Append("\u200D");
textShaper.Append("👧");
textShaper.Append("\u200D");
textShaper.Append("👦");
sstr = textShaper.CreateShapedString(font.Regular);
}
})
.RunForOneFrame();
TheResultingValue(sstr.Length).ShouldBe(1);
TheResultingValue(sstr[0].GlyphIndex).ShouldBe(1687);
}
public void ShapedString_ProvidesCorrectShapingData_InEnglish()
{
var sstr = default(ShapedString);
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!");
sstr = textShaper.CreateShapedString(font.Regular);
}
})
.RunForOneFrame();
var chars = new ShapedChar[sstr.Length];
sstr.CopyTo(0, chars, 0, sstr.Length);
var glyphIndices = chars.Select(x => x.GlyphIndex).ToArray();
TheResultingCollection(glyphIndices)
.ShouldBeExactly(111, 412, 514, 514, 555, 2122, 3, 696, 555, 609, 514, 393, 2125);
var sourceIndices = chars.Select(x => x.SourceIndex).ToArray();
TheResultingCollection(sourceIndices)
.ShouldBeExactly(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12);
var advances = chars.Select(x => x.Advance).ToArray();
TheResultingCollection(advances)
.ShouldBeExactly(11, 9, 5, 5, 9, 4, 4, 11, 9, 6, 5, 10, 4);
var offsets_x = chars.Select(x => x.OffsetX).ToArray();
TheResultingCollection(offsets_x)
.ShouldContainTheSpecifiedNumberOfItems(13)
.ShouldContainItemsSatisfyingTheCondition(x => x == 0);
var offsets_y = chars.Select(x => x.OffsetY).ToArray();
TheResultingCollection(offsets_y)
.ShouldContainTheSpecifiedNumberOfItems(13)
.ShouldContainItemsSatisfyingTheCondition(x => x == 0);
}
public void ShapedString_ProvidesCorrectShapingData_InArabic()
{
var sstr = default(ShapedString);
GivenAnUltravioletApplicationWithNoWindow()
.WithPlugin(new FreeTypeFontPlugin())
.WithContent(content =>
{
var font = content.Load <UltravioletFont>("Fonts/FiraGO-Regular");
using (var textShaper = new HarfBuzzTextShaper(content.Ultraviolet))
{
textShaper.SetUnicodeProperties(TextDirection.RightToLeft, TextScript.Arabic, "ar");
textShaper.Append("مرحبا بالعالم");
sstr = textShaper.CreateShapedString(font.Regular);
}
})
.RunForOneFrame();
var chars = new ShapedChar[sstr.Length];
sstr.CopyTo(0, chars, 0, sstr.Length);
var glyphIndices = chars.Select(x => x.GlyphIndex).ToArray();
TheResultingCollection(glyphIndices)
.ShouldBeExactly(2531, 2513, 2150, 2392, 2513, 2150, 2173, 3, 2150, 2172, 2243, 2288, 2533);
var sourceIndices = chars.Select(x => x.SourceIndex).ToArray();
TheResultingCollection(sourceIndices)
.ShouldBeExactly(12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0);
var advances = chars.Select(x => x.Advance).ToArray();
TheResultingCollection(advances)
.ShouldBeExactly(15, 5, 5, 13, 5, 5, 6, 6, 5, 7, 15, 9, 13);
var offsets_x = chars.Select(x => x.OffsetX).ToArray();
TheResultingCollection(offsets_x)
.ShouldContainTheSpecifiedNumberOfItems(13)
.ShouldContainItemsSatisfyingTheCondition(x => x == 0);
var offsets_y = chars.Select(x => x.OffsetY).ToArray();
TheResultingCollection(offsets_y)
.ShouldContainTheSpecifiedNumberOfItems(13)
.ShouldContainItemsSatisfyingTheCondition(x => x == 0);
}
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);
}
public void ShapedStringBuilder_IsAppendedFromShaper_WhenSpecifyingSubstring()
{
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!");
textShaper.AppendTo(sstrb, font.Regular, 7, 5);
}
})
.RunForOneFrame();
TheResultingValue(sstrb.Length).ShouldBe(5);
}
public void TextShaper_AppendsMultipleStrings()
{
var textLength = default(Int32);
GivenAnUltravioletApplicationInServiceMode()
.WithInitialization(uv =>
{
using (var textShaper = new HarfBuzzTextShaper(uv))
{
textShaper.SetUnicodeProperties(TextDirection.LeftToRight, TextScript.Latin, "en");
textShaper.Append("Hello,");
textShaper.Append(" ");
textShaper.Append("world!");
textLength = textShaper.RawLength;
}
})
.RunForOneFrame();
TheResultingValue(textLength).ShouldBe(13);
}
public void ShapedStringBuilder_CanSpecifyInitialValueAndCapacityInConstructor()
{
var sstrb = default(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 = new ShapedStringBuilder(textShaper.CreateShapedString(font), 128);
}
})
.RunForOneFrame();
TheResultingValue(sstrb.Capacity).ShouldBe(128);
TheResultingValue(sstrb.Length).ShouldBe(13);
}
public void ShapedString_IsCreatedCorrectlyFromShaper_WhenSpecifyingSubstring()
{
var sstr = default(ShapedString);
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!");
sstr = textShaper.CreateShapedString(font.Regular, 7, 5);
}
})
.RunForOneFrame();
TheResultingString(sstr.Language).ShouldBe("en");
TheResultingValue(sstr.Script).ShouldBe(TextScript.Latin);
TheResultingValue(sstr.Direction).ShouldBe(TextDirection.LeftToRight);
TheResultingValue(sstr.Length).ShouldBe(5);
}
public void ShapedString_ProvidesCorrectSourceIndices()
{
var sstr = 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 ");
textShaper.Append("👨");
textShaper.Append("\u200D");
textShaper.Append("👩");
textShaper.Append("\u200D");
textShaper.Append("👧");
textShaper.Append("\u200D");
textShaper.Append("👦");
textShaper.Append("!");
sstr = textShaper.CreateShapedString(font.Regular);
}
})
.RunForOneFrame();
var chars = new ShapedChar[sstr.Length];
sstr.CopyTo(0, chars, 0, sstr.Length);
var sourceIndices = chars.Select(x => x.SourceIndex).ToArray();
TheResultingCollection(sourceIndices)
.ShouldBeExactly(0, 1, 2, 3, 4, 5, 6, 17);
}