diff options
Diffstat (limited to 'src/main.rs')
| -rw-r--r-- | src/main.rs | 29 |
1 files changed, 17 insertions, 12 deletions
diff --git a/src/main.rs b/src/main.rs index 2ba98473..40f36d3a 100644 --- a/src/main.rs +++ b/src/main.rs @@ -4,15 +4,17 @@ extern crate libc; extern crate glutin; extern crate gl; extern crate cgmath; +extern crate euclid; mod list_fonts; mod text; - use std::ffi::CString; use std::mem::size_of; use std::ptr; +use euclid::{Rect, Size2D, Point2D}; + use libc::c_void; use gl::types::*; @@ -90,6 +92,13 @@ fn main() { } } +fn get_rect(glyph: &RasterizedGlyph, x: f32, y: f32) -> Rect<f32> { + Rect::new( + Point2D::new(x, y), + Size2D::new(glyph.width as f32, glyph.height as f32) + ) +} + /// Render a character /// /// TODO use element array to describe quad instead @@ -102,21 +111,17 @@ fn render(program: &ShaderProgram, glyph: &RasterizedGlyph, tex: &AlphaTexture, gl::Uniform3f(program.color, 1., 1., 0.5); } - // bottom left of character - let left = 10. as f32; - let bottom = 10. as f32; + let rect = get_rect(glyph, 10.0, 10.0); // top right of character - let top = bottom + glyph.height as f32; - let right = left + glyph.width as f32; let vertices: [[f32; 4]; 6] = [ - [left, top, 0., 0.], - [left, bottom, 0., 1.], - [right, bottom, 1., 1.], + [rect.min_x(), rect.max_y(), 0., 0.], + [rect.min_x(), rect.min_y(), 0., 1.], + [rect.max_x(), rect.min_y(), 1., 1.], - [left, top, 0., 0.], - [right, bottom, 1., 1.], - [right, top, 1., 0.], + [rect.min_x(), rect.max_y(), 0., 0.], + [rect.max_x(), rect.min_y(), 1., 1.], + [rect.max_x(), rect.max_y(), 1., 0.], ]; unsafe { |