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Add basic text wrapping

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This commit is contained in:
Jeremy Soller 2022-10-03 12:10:23 -06:00
parent a900ab0935
commit 12e240c6f1
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GPG key ID: 87F211AF2BE4C2FE
1 changed files with 13 additions and 5 deletions
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18
examples/text/src/main.rs
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@ -83,13 +83,21 @@ fn main() {
let glyph = font.rusttype.glyph(rusttype::GlyphId(info.glyph_id as u16));
let scaled = glyph.scaled(rusttype::Scale::uniform(font_size));
let positioned = scaled.positioned(rusttype::point(
glyph_x as f32 + font_size * pos.x_offset as f32 / font_scale,
glyph_y as f32 + font_size * pos.y_offset as f32 / font_scale,
font_size * pos.x_offset as f32 / font_scale,
font_size * pos.y_offset as f32 / font_scale,
));
if let Some(bb) = positioned.pixel_bounding_box() {
positioned.draw(|x, y, v| {
let x = x as i32 + bb.min.x;
let y = y as i32 + bb.min.y;
//TODO: make wrapping optional
if glyph_x + bb.max.x >= window.width() as i32 {
line_y += line_height;
glyph_x = 0;
glyph_y = line_y;
}
positioned.draw(|off_x, off_y, v| {
let x = glyph_x + off_x as i32 + bb.min.x;
let y = glyph_y + off_y as i32 + bb.min.y;
let c = (v * 255.0) as u32;
window.pixel(x, y, Color{
data: c << 24 | (font_color.data & 0x00FF_FFFF)