From 7b0e215008c94c4a7ddb5f47b12c341d807ea062 Mon Sep 17 00:00:00 2001
From: Minijackson <minijackson@riseup.net>
Date: Fri, 20 Jan 2023 16:03:25 +0100
Subject: tree-wide: properly set figure size

---
 cairo-renderer/src/lib.rs | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

(limited to 'cairo-renderer')

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)
     }
-- 
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