public void Test_LettersDontRenderAsRectangles_SerifFont()
{
// this test ensures letters don't render as rectangles
// https://github.com/ScottPlot/ScottPlot/issues/1079
System.Drawing.Bitmap bmp = new(200, 100);
using var gfx = Graphics.FromImage(bmp);
gfx.TextRenderingHint = System.Drawing.Text.TextRenderingHint.SingleBitPerPixel;
gfx.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighSpeed;
string[] fontNames = { InstalledFont.Serif(), InstalledFont.Sans(), InstalledFont.Monospace() };
foreach (string fontName in fontNames)
{
gfx.Clear(Color.Navy);
System.Drawing.Font fnt = new(fontName, 18);
gfx.DrawString("tttt", fnt, Brushes.Yellow, 10, 10);
string hash1 = ScottPlot.Tools.BitmapHash(bmp);
gfx.DrawString("eeee", fnt, Brushes.Yellow, 10, 10);
string hash2 = ScottPlot.Tools.BitmapHash(bmp);
Assert.AreNotEqual(hash1, hash2);
}
}
public void Test_DrawString_Aligned()
{
using System.Drawing.Bitmap bmp = new(400, 300);
using Graphics gfx = Graphics.FromImage(bmp);
gfx.Clear(Color.Navy);
gfx.DrawLine(Pens.Gray, 150, 0, 150, 300);
gfx.DrawLine(Pens.Gray, 0, 150, 400, 150);
gfx.DrawEllipse(Pens.White, 145, 145, 10, 10);
GDI.DrawLabel(
gfx, "testing", 150, 150, InstalledFont.Sans(), 16, true,
HorizontalAlignment.Left, VerticalAlignment.Upper,
Color.Yellow, Color.Magenta);
TestTools.SaveBitmap(bmp);
}
public void Test_DefaultFont_MatchesOsExpectations()
{
string defaultFont = InstalledFont.Default();
Console.WriteLine($">>> Default font: {defaultFont}");
string defaultFontSans = InstalledFont.Sans();
Console.WriteLine($">>> Default sans font: {defaultFontSans}");
string defaultFontSerif = InstalledFont.Serif();
Console.WriteLine($">>> Default serif font: {defaultFontSerif}");
string defaultFontMonospace = InstalledFont.Monospace();
Console.WriteLine($">>> Default monospace font: {defaultFontMonospace}");
Assert.That(defaultFont == defaultFontSans);
if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
Assert.That(defaultFontSans == "Segoe UI");
Assert.That(defaultFontSerif == "Times New Roman");
Assert.That(defaultFontMonospace == "Consolas");
}
else if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
{
Assert.That(defaultFontSans == "DejaVu Sans");
Assert.That(defaultFontSerif == "DejaVu Serif");
Assert.That(defaultFontMonospace == "DejaVu Sans Mono");
}
else if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
{
Assert.That(defaultFontSans == "Helvetica");
Assert.That(defaultFontSerif.StartsWith("Times"));
Assert.That(defaultFontMonospace == "Courier");
}
}