From 05af8d00d4c0f7b8e0ece85224fd90a92da86da8 Mon Sep 17 00:00:00 2001
From: Héctor Ramón Jiménez <hector0193@gmail.com>
Date: Tue, 19 May 2020 17:15:44 +0200
Subject: Draft new `iced_graphics` crate :tada:

---
 graphics/src/renderer.rs | 86 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 86 insertions(+)
 create mode 100644 graphics/src/renderer.rs

(limited to 'graphics/src/renderer.rs')

diff --git a/graphics/src/renderer.rs b/graphics/src/renderer.rs
new file mode 100644
index 00000000..836ed58d
--- /dev/null
+++ b/graphics/src/renderer.rs
@@ -0,0 +1,86 @@
+mod widget;
+
+use crate::{Backend, Defaults, Primitive};
+use iced_native::layout::{self, Layout};
+use iced_native::mouse;
+use iced_native::{Background, Color, Element, Point, Widget};
+
+pub struct Renderer<B> {
+    backend: B,
+}
+
+impl<B> Renderer<B> {
+    pub fn new(backend: B) -> Self {
+        Self { backend }
+    }
+
+    pub fn backend(&self) -> &B {
+        &self.backend
+    }
+
+    pub fn backend_mut(&mut self) -> &mut B {
+        &mut self.backend
+    }
+}
+
+impl<B> iced_native::Renderer for Renderer<B>
+where
+    B: Backend,
+{
+    type Output = (Primitive, mouse::Interaction);
+    type Defaults = Defaults;
+
+    fn layout<'a, Message>(
+        &mut self,
+        element: &Element<'a, Message, Self>,
+        limits: &layout::Limits,
+    ) -> layout::Node {
+        let layout = element.layout(self, limits);
+
+        self.backend.trim_measurements();
+
+        layout
+    }
+}
+
+impl<B> layout::Debugger for Renderer<B>
+where
+    B: Backend,
+{
+    fn explain<Message>(
+        &mut self,
+        defaults: &Defaults,
+        widget: &dyn Widget<Message, Self>,
+        layout: Layout<'_>,
+        cursor_position: Point,
+        color: Color,
+    ) -> Self::Output {
+        let (primitive, cursor) =
+            widget.draw(self, defaults, layout, cursor_position);
+
+        let mut primitives = Vec::new();
+
+        explain_layout(layout, color, &mut primitives);
+        primitives.push(primitive);
+
+        (Primitive::Group { primitives }, cursor)
+    }
+}
+
+fn explain_layout(
+    layout: Layout<'_>,
+    color: Color,
+    primitives: &mut Vec<Primitive>,
+) {
+    primitives.push(Primitive::Quad {
+        bounds: layout.bounds(),
+        background: Background::Color(Color::TRANSPARENT),
+        border_radius: 0,
+        border_width: 1,
+        border_color: [0.6, 0.6, 0.6, 0.5].into(),
+    });
+
+    for child in layout.children() {
+        explain_layout(child, color, primitives);
+    }
+}
-- 
cgit 


From e6180912488db4d59fbffcb46c5930282306cb92 Mon Sep 17 00:00:00 2001
From: Héctor Ramón Jiménez <hector0193@gmail.com>
Date: Tue, 19 May 2020 21:00:40 +0200
Subject: Merge unnecessary split widget modules

---
 graphics/src/renderer.rs | 2 --
 1 file changed, 2 deletions(-)

(limited to 'graphics/src/renderer.rs')

diff --git a/graphics/src/renderer.rs b/graphics/src/renderer.rs
index 836ed58d..f16e04b1 100644
--- a/graphics/src/renderer.rs
+++ b/graphics/src/renderer.rs
@@ -1,5 +1,3 @@
-mod widget;
-
 use crate::{Backend, Defaults, Primitive};
 use iced_native::layout::{self, Layout};
 use iced_native::mouse;
-- 
cgit 


From 2ca7e3c4b0cb293adebf9a9bf9a26191069d495d Mon Sep 17 00:00:00 2001
From: Héctor Ramón Jiménez <hector0193@gmail.com>
Date: Thu, 28 May 2020 01:37:59 +0200
Subject: Write documentation for `iced_graphics`

---
 graphics/src/renderer.rs | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

(limited to 'graphics/src/renderer.rs')

diff --git a/graphics/src/renderer.rs b/graphics/src/renderer.rs
index f16e04b1..c9360f3a 100644
--- a/graphics/src/renderer.rs
+++ b/graphics/src/renderer.rs
@@ -3,19 +3,33 @@ use iced_native::layout::{self, Layout};
 use iced_native::mouse;
 use iced_native::{Background, Color, Element, Point, Widget};
 
-pub struct Renderer<B> {
+/// A backend-agnostic renderer that supports all the built-in widgets.
+#[derive(Debug)]
+pub struct Renderer<B: Backend> {
     backend: B,
 }
 
-impl<B> Renderer<B> {
+impl<B: Backend> Renderer<B> {
+    /// Creates a new [`Renderer`] from the given [`Backend`].
+    ///
+    /// [`Renderer`]: struct.Renderer.html
+    /// [`Backend`]: backend/trait.Backend.html
     pub fn new(backend: B) -> Self {
         Self { backend }
     }
 
+    /// Returns a reference to the [`Backend`] of the [`Renderer`].
+    ///
+    /// [`Renderer`]: struct.Renderer.html
+    /// [`Backend`]: backend/trait.Backend.html
     pub fn backend(&self) -> &B {
         &self.backend
     }
 
+    /// Returns a mutable reference to the [`Backend`] of the [`Renderer`].
+    ///
+    /// [`Renderer`]: struct.Renderer.html
+    /// [`Backend`]: backend/trait.Backend.html
     pub fn backend_mut(&mut self) -> &mut B {
         &mut self.backend
     }
-- 
cgit