public void RenderArabicCharacters_WithIsolatedForm_Works(string testStr, int expectedGlyphIndex)
{
// arrange
Font arabicFont = new FontCollection().Add(TestFonts.ArabicFontFile).CreateFont(8);
var renderer = new ColorGlyphRenderer();
// act
TextRenderer.RenderTextTo(renderer, testStr, new TextOptions(arabicFont));
// assert
GlyphRendererParameters glyphKey = Assert.Single(renderer.GlyphKeys);
Assert.Equal(expectedGlyphIndex, glyphKey.GlyphIndex);
}
public void SingleAdjustmentPositioning_Format1_Works()
{
// arrange
string fontFile = TestFonts.GposLookupType1Format1;
ushort upem = ReadFontUpem(fontFile);
Font font = new FontCollection().Add(fontFile).CreateFont(upem);
var renderer = new ColorGlyphRenderer();
string testStr = "\u0012\u0014"; // XPlacement should be adjusted by minus 200 for both glyphs.
int[] expectedGlyphIndices = { 20, 22 };
FontRectangle[] expectedFontRectangles =
{
new(275, 2011, 825, 719),
new(1622, 2010, 978, 704),
};
public void SingleSubstitution_Works()
{
// arrange
Font font = new FontCollection().Add(TestFonts.GSubTestFontFile1).CreateFont(12);
var renderer = new ColorGlyphRenderer();
string testStr = "A";
int expectedGlyphIndex = 38; // we expect A to be mapped to B.
// act
TextRenderer.RenderTextTo(renderer, testStr, new TextOptions(font));
// assert
GlyphRendererParameters glyphKey = Assert.Single(renderer.GlyphKeys);
Assert.Equal(expectedGlyphIndex, glyphKey.GlyphIndex);
}
public void ContextualFractions_WithSlash_Works()
{
// arrange
Font font = new FontCollection().Add(TestFonts.RobotoRegular).CreateFont(12);
var renderer = new ColorGlyphRenderer();
string testStr = "9/2";
int[] expectedGlyphIndices = { 580, 404, 453 };
// act
TextRenderer.RenderTextTo(renderer, testStr, new TextOptions(font));
// assert
Assert.Equal(expectedGlyphIndices.Length, renderer.GlyphKeys.Count);
for (int i = 0; i < expectedGlyphIndices.Length; i++)
{
Assert.Equal(expectedGlyphIndices[i], renderer.GlyphKeys[i].GlyphIndex);
}
}
public void ReverseChainingContextualSingleSubstitution_Works()
{
// arrange
Font font = new FontCollection().Add(TestFonts.GSubTestFontFile2).CreateFont(12);
var renderer = new ColorGlyphRenderer();
string testStr = "X89"; // X89 -> XYZ
int[] expectedGlyphIndices = { 57, 58, 59 };
// act
TextRenderer.RenderTextTo(renderer, testStr, new TextOptions(font));
// assert
Assert.Equal(expectedGlyphIndices.Length, renderer.GlyphKeys.Count);
for (int i = 0; i < expectedGlyphIndices.Length; i++)
{
Assert.Equal(expectedGlyphIndices[i], renderer.GlyphKeys[i].GlyphIndex);
}
}
public void ChainedContextsSubstitution_Format3_WithCursiveScript_Works()
{
// arrange
Font font = new FontCollection().Add(TestFonts.FormalScript).CreateFont(12);
var renderer = new ColorGlyphRenderer();
string testStr = "ba"; // Characters following b should have a special form and should be replaced.
int[] expectedGlyphIndices = { 69, 102 };
// act
TextRenderer.RenderTextTo(renderer, testStr, new TextOptions(font));
// assert
Assert.Equal(expectedGlyphIndices.Length, renderer.GlyphKeys.Count);
for (int i = 0; i < expectedGlyphIndices.Length; i++)
{
Assert.Equal(expectedGlyphIndices[i], renderer.GlyphKeys[i].GlyphIndex);
}
}
public void ChainedContextsSubstitution_Format3_Works()
{
// arrange
Font font = new FontCollection().Add(TestFonts.GSubTestFontFile2).CreateFont(12);
var renderer = new ColorGlyphRenderer();
string testStr = "x=y"; // This should be replaced with "x>y".
int[] expectedGlyphIndices = { 89, 31, 90 };
// act
TextRenderer.RenderTextTo(renderer, testStr, new TextOptions(font));
// assert
Assert.Equal(expectedGlyphIndices.Length, renderer.GlyphKeys.Count);
for (int i = 0; i < expectedGlyphIndices.Length; i++)
{
Assert.Equal(expectedGlyphIndices[i], renderer.GlyphKeys[i].GlyphIndex);
}
}
public void ChainedContextsSubstitution_Format2_Works()
{
// arrange
Font font = new FontCollection().Add(TestFonts.GSubLookupType6Format2).CreateFont(12);
var renderer = new ColorGlyphRenderer();
string testStr = "\u0014\u0015\u0016\u0017"; // "20212223" -> "20216423"
int[] expectedGlyphIndices = { 22, 23, 64, 25 };
// act
TextRenderer.RenderTextTo(renderer, testStr, new TextOptions(font));
// assert
Assert.Equal(expectedGlyphIndices.Length, renderer.GlyphKeys.Count);
for (int i = 0; i < expectedGlyphIndices.Length; i++)
{
Assert.Equal(expectedGlyphIndices[i], renderer.GlyphKeys[i].GlyphIndex);
}
}
public void ContextualSubstitution_Format3_Works()
{
// arrange
Font font = new FontCollection().Add(TestFonts.GSubLookupType5Format3).CreateFont(12);
var renderer = new ColorGlyphRenderer();
string testStr = "\u0041\u0042\u0043\u0044"; // "65666768" -> "657678"
int[] expectedGlyphIndices = { 67, 78, 80 };
// act
TextRenderer.RenderTextTo(renderer, testStr, new TextOptions(font));
// assert
Assert.Equal(expectedGlyphIndices.Length, renderer.GlyphKeys.Count);
for (int i = 0; i < expectedGlyphIndices.Length; i++)
{
Assert.Equal(expectedGlyphIndices[i], renderer.GlyphKeys[i].GlyphIndex);
}
}
