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PrepareFont calculates total pen advance

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This commit is contained in:
Simon Lübeß
2022-01-21 21:19:44 +01:00
parent bca4552341
commit 7eb4001a1b
1 changed files with 28 additions and 5 deletions
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GlitchyEngine/src/Renderer/Text/FontRenderer.bf
+28 -5
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@@ -67,6 +67,9 @@ namespace GlitchyEngine.Renderer.Text
public Font Font ~ _?.ReleaseRef();
public List<PreparedGlyph> Glyphs ~ delete:append _;
public float AdvanceX;
public float AdvanceY;
[AllowAppend]
public this(Font font)
{
@@ -216,6 +219,14 @@ namespace GlitchyEngine.Renderer.Text
penPosition += (x_advance / 64) * fontScale;
baseline += (y_advance / 64) * fontScale;
}
preparedText.AdvanceX = Math.Max(preparedText.AdvanceX, penPosition);
}
void ResetPenPos()
{
preparedText.AdvanceX = Math.Max(preparedText.AdvanceX, penPosition);
penPosition = 0;
}
for (char32 char in text.DecodedChars)
@@ -240,7 +251,7 @@ namespace GlitchyEngine.Renderer.Text
FlushShapeBuffer();
// carriage return
penPosition = 0;
ResetPenPos();
continue;
case '\u{2066}':
@@ -286,7 +297,7 @@ namespace GlitchyEngine.Renderer.Text
// TODO: make carriage return optional?
// return pen to start of line
penPosition = 0;
ResetPenPos();
movedLines = 0;
}
@@ -300,11 +311,18 @@ namespace GlitchyEngine.Renderer.Text
}
FlushShapeBuffer();
preparedText.AdvanceY = baseline;
return preparedText;
}
public static void DrawText(PreparedText text, float x, float y)
{
DrawText(text, Matrix.Translation(x, y, 0));
}
public static void DrawText(PreparedText text, Matrix transform)
{
Debug.Profiler.ProfileRendererFunction!();
@@ -363,8 +381,8 @@ namespace GlitchyEngine.Renderer.Text
// Rectangle on the screen
Vector4 viewportRect = .(
// TODO: merge adjustToPenX and adjustToBaseline into Position
x + glyph.Position.X + adjustToPenX,
y + glyph.Position.Y + adjustToBaseline,
glyph.Position.X + adjustToPenX,
glyph.Position.Y + adjustToBaseline,
glyphDesc.Width * glyph.Scale,
glyphDesc.Height * glyph.Scale);
@@ -378,7 +396,12 @@ namespace GlitchyEngine.Renderer.Text
// Show quads
// Renderer2D.DrawQuad(Vector3(viewportRect.X + viewportRect.Z / 2, viewportRect.Y + viewportRect.W / 2, 1), .(viewportRect.Z, viewportRect.W), 0, .Red);
Renderer2D.DrawQuad(Vector2(viewportRect.X + viewportRect.Z / 2, viewportRect.Y + viewportRect.W / 2), .(viewportRect.Z, viewportRect.W), 0, atlas, glyphColor, texRect);
Vector3 position = .(viewportRect.X + viewportRect.Z / 2, viewportRect.Y + viewportRect.W / 2, 0);
Matrix glyphTransform = transform * Matrix.Translation(position) * Matrix.Scaling(viewportRect.Z, viewportRect.W, 1.0f);
Renderer2D.DrawQuad(glyphTransform, atlas, glyphColor, texRect);
//Renderer2D.DrawQuad(Vector2(viewportRect.X + viewportRect.Z / 2, viewportRect.Y + viewportRect.W / 2), .(viewportRect.Z, viewportRect.W), 0, atlas, glyphColor, texRect);
// Show pen positions
// Renderer2D.DrawQuad(Vector3(Vector2(x, y) + glyph.Position, -1), .(1), 0, .Green);