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add: Rect font rendering

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This commit is contained in:
Simon Hardt
2022-03-05 23:06:10 +01:00
parent 0fe1509c6c
commit e1e410561c
5 changed files with 151 additions and 6 deletions
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42
frame/src/render/RenderTarget.cpp
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@@ -182,6 +182,48 @@ namespace frame::render
}
}
void RenderTarget::DrawText(Rect rect,
std::string pText,
font::Font const& pFont,
uint32_t size,
AlignHorizontal alignHorizontal,
AlignVertical alignVertical)
{
auto const lineSpacing = pFont.getLineSpacing(size);
auto const lineSpacing_3 = lineSpacing / 3;
Vector start{rect.top, rect.left};
auto text_height = pFont.getHeight(pText, size);
auto length = pFont.getLength(pText, size);
auto y_offset = pFont.getMaxYOffset(pText, size);
switch(alignVertical)
{
case AlignVertical::TOP: start.y += lineSpacing_3 * 2; break;
case AlignVertical::CENTER:
start.y += rect.height / 2;
start.y += text_height / 2;
start.y -= y_offset + text_height;
break;
case AlignVertical::BOTTOM:
start.y += rect.height;
start.y += text_height + y_offset;
break;
}
switch(alignHorizontal)
{
case AlignHorizontal::CENTER:
start.x += rect.width / 2;
start.x -= length / 2;
break;
case AlignHorizontal::RIGHT: start.x += rect.width - length; break;
}
DrawText(pText, start, pFont, size);
}
void RenderTarget::DrawTextGlyphBounds(std::string_view pText,
Vector pCenterLineStart,
font::Font const& pFont,