tree-wide: properly set figure size

1 files changed, 14 insertions, 2 deletions

diff --git a/cairo-renderer/src/lib.rs b/cairo-renderer/src/lib.rs
index 830e6bc..2a88379 100644
--- a/cairo-renderer/src/lib.rs
+++ b/cairo-renderer/src/lib.rs
@@ -10,15 +10,27 @@ pub struct CairoRenderer {
 
 impl CairoRenderer {
     pub fn new() -> Self {
-        // TODO: properly
-        let surface = cairo::SvgSurface::for_stream(1920., 1080., std::io::stdout()).unwrap();
+        // HACK: a bit ugly, but text_extents requires a context, so we have to create a "dummy"
+        // surface
+        let surface = cairo::SvgSurface::for_stream(1920., 1080., std::io::sink()).unwrap();
         let ctx = cairo::Context::new(&surface).unwrap();
 
         Self { ctx }
     }
 }
 
+impl Default for CairoRenderer {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Renderer for CairoRenderer {
+    fn set_size(&mut self, width: f64, height: f64) {
+        let surface = cairo::SvgSurface::for_stream(width, height, std::io::stdout()).unwrap();
+        self.ctx = cairo::Context::new(&surface).unwrap();
+    }
+
     fn move_to(&mut self, x: f64, y: f64) {
         self.ctx.move_to(x, y)
     }