init commit

A basic window is available.  Now we shall try to render texts and
some auxiliary functionalities.

1 files changed, 46 insertions, 0 deletions

diff --git a/src/renderer/mod.rs b/src/renderer/mod.rs
new file mode 100644
index 0000000..05f7e25
--- /dev/null
+++ b/src/renderer/mod.rs
@@ -0,0 +1,46 @@
+#![allow(unused)]
+
+pub mod backend;
+pub mod dummy;
+pub mod error;
+pub mod text;
+pub mod vulkan;
+
+use backend::RendererBackend;
+use text::TextSpan;
+
+pub struct Renderer<'a> {
+    pub backend: Box<dyn RendererBackend + 'a>,
+    pub width: i32,
+    pub height: i32,
+}
+
+impl<'a> Renderer<'a> {
+    pub fn new<B>(mut backend: B, width: i32, height: i32) -> Self
+    where
+        B: RendererBackend + 'a,
+    {
+        backend.init(width, height);
+        Self {
+            backend: Box::new(backend),
+            width,
+            height,
+        }
+    }
+
+    pub fn clear(&mut self) {
+        self.backend.clear();
+    }
+
+    pub fn draw_text(&mut self, span: &TextSpan) {
+        self.backend.draw_text(span);
+    }
+
+    pub fn present(&mut self) {
+        self.backend.present();
+    }
+
+    pub fn shutdown(&mut self) {
+        self.backend.shutdown();
+    }
+}