83 lines
1.8 KiB
Rust
83 lines
1.8 KiB
Rust
use maraiah::rozinante::draw::*;
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use maraiah::durandal::image::*;
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fn flt_color(cr: impl Color) -> (f64, f64, f64)
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{
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fn flt_color(n: u16) -> f64 {f64::from(n) / f64::from(u16::max_value())}
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(flt_color(cr.r()), flt_color(cr.g()), flt_color(cr.b()))
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}
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impl CacheImage for CairoPixbuf
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{
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fn w(&self) -> Coord {self.0.get_width() as Coord}
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fn h(&self) -> Coord {self.0.get_height() as Coord}
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}
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impl CairoDrawArea
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{
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pub const fn new(ctx: cairo::Context, w: f64, h: f64) -> Self
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{
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CairoDrawArea{ctx, w: w as Coord, h: h as Coord}
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}
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}
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impl DrawArea for CairoDrawArea
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{
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type NativeImage = CairoPixbuf;
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fn w(&self) -> Coord {self.w}
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fn h(&self) -> Coord {self.h}
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fn clear(&self, cr: impl Color)
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{
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use cairo::{FontSlant, FontWeight};
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self.rect(Rect{x: 0, y: 0, w: self.w(), h: self.h()}, cr);
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self.ctx.select_font_face("Sans", FontSlant::Normal, FontWeight::Normal);
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self.ctx.set_font_size(14.0);
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}
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fn rect(&self, rect: Rect, cr: impl Color)
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{
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let x1 = f64::from(rect.x);
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let y1 = f64::from(rect.y);
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let x2 = f64::from(rect.w) + x1;
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let y2 = f64::from(rect.h) + y1;
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let (r, g, b) = flt_color(cr);
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self.ctx.set_source_rgb(r, g, b);
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self.ctx.rectangle(x1, y1, x2, y2);
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self.ctx.fill();
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}
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fn text(&self, pos: Point, text: &str, cr: impl Color)
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{
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let (r, g, b) = flt_color(cr);
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self.ctx.set_source_rgb(r, g, b);
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self.ctx.move_to(f64::from(pos.0), f64::from(pos.1));
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self.ctx.show_text(text);
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}
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fn image(&self, pos: Point, im: &Self::NativeImage)
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{
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use gdk::prelude::*;
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self.ctx.set_source_pixbuf(&im.0, f64::from(pos.0), f64::from(pos.1));
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self.ctx.paint();
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}
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}
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pub struct CairoPixbuf(pub gdk_pixbuf::Pixbuf);
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pub struct CairoDrawArea
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{
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ctx: cairo::Context,
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w: Coord,
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h: Coord,
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}
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// EOF
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