Merge pull request #2934 from saneyuki/canvas

Move CanvasRenderTask to gfx crate.

4 files changed, 84 insertions, 72 deletions

diff --git a/src/components/gfx/canvas_render_task.rs b/src/components/gfx/canvas_render_task.rs
new file mode 100644
index 00000000000..7eafd1aef09
--- /dev/null
+++ b/src/components/gfx/canvas_render_task.rs
@@ -0,0 +1,78 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+use azure::azure_hl::{DrawTarget, Color, B8G8R8A8, SkiaBackend, StrokeOptions, DrawOptions};
+use azure::azure_hl::ColorPattern;
+use geom::rect::Rect;
+use geom::size::Size2D;
+
+use std::comm;
+use std::task::TaskBuilder;
+
+pub enum CanvasMsg {
+    FillRect(Rect<f32>),
+    ClearRect(Rect<f32>),
+    StrokeRect(Rect<f32>),
+    Recreate(Size2D<i32>),
+    Close,
+}
+
+pub struct CanvasRenderTask {
+    drawtarget: DrawTarget,
+    fill_color: ColorPattern,
+    stroke_color: ColorPattern,
+    stroke_opts: StrokeOptions,
+}
+
+impl CanvasRenderTask {
+    fn new(size: Size2D<i32>) -> CanvasRenderTask {
+        CanvasRenderTask {
+            drawtarget: CanvasRenderTask::create(size),
+            fill_color: ColorPattern::new(Color::new(0., 0., 0., 1.)),
+            stroke_color: ColorPattern::new(Color::new(0., 0., 0., 1.)),
+            stroke_opts: StrokeOptions::new(1.0, 1.0),
+        }
+    }
+
+    pub fn start(size: Size2D<i32>) -> Sender<CanvasMsg> {
+        let (chan, port) = comm::channel::<CanvasMsg>();
+        let builder = TaskBuilder::new().named("CanvasTask");
+        builder.spawn(proc() {
+            let mut renderer = CanvasRenderTask::new(size);
+
+            loop {
+                match port.recv() {
+                    FillRect(ref rect) => renderer.fill_rect(rect),
+                    StrokeRect(ref rect) => renderer.stroke_rect(rect),
+                    ClearRect(ref rect) => renderer.clear_rect(rect),
+                    Recreate(size) => renderer.recreate(size),
+                    Close => break,
+                }
+            }
+        });
+        chan
+    }
+
+    fn fill_rect(&self, rect: &Rect<f32>) {
+        let drawopts = DrawOptions::new(1.0, 0);
+        self.drawtarget.fill_rect(rect, &self.fill_color, Some(&drawopts));
+    }
+
+    fn clear_rect(&self, rect: &Rect<f32>) {
+        self.drawtarget.clear_rect(rect);
+    }
+
+    fn stroke_rect(&self, rect: &Rect<f32>) {
+        let drawopts = DrawOptions::new(1.0, 0);
+        self.drawtarget.stroke_rect(rect, &self.stroke_color, &self.stroke_opts, &drawopts);
+    }
+
+    fn create(size: Size2D<i32>) -> DrawTarget {
+        DrawTarget::new(SkiaBackend, size, B8G8R8A8)
+    }
+
+    fn recreate(&mut self, size: Size2D<i32>) {
+        self.drawtarget = CanvasRenderTask::create(size);
+    }
+}
diff --git a/src/components/gfx/gfx.rs b/src/components/gfx/gfx.rs
index 6453c9c3630..32fa30aba51 100644
--- a/src/components/gfx/gfx.rs
+++ b/src/components/gfx/gfx.rs
@@ -54,6 +54,10 @@ pub mod color;
 pub mod display_list;
 pub mod render_task;
 
+// Canvas Rendering
+#[allow(dead_code)]
+pub mod canvas_render_task;
+
 // Fonts
 pub mod font;
 pub mod font_context;
diff --git a/src/components/script/dom/canvasrenderingcontext2d.rs b/src/components/script/dom/canvasrenderingcontext2d.rs
index 6774e042791..d448425ef54 100644
--- a/src/components/script/dom/canvasrenderingcontext2d.rs
+++ b/src/components/script/dom/canvasrenderingcontext2d.rs
@@ -9,14 +9,11 @@ use dom::bindings::js::{JSRef, Temporary};
 use dom::bindings::trace::Untraceable;
 use dom::bindings::utils::{Reflector, Reflectable, reflect_dom_object};
 
-use azure::azure_hl::{DrawTarget, Color, B8G8R8A8, SkiaBackend, StrokeOptions, DrawOptions};
-use azure::azure_hl::ColorPattern;
 use geom::point::Point2D;
 use geom::rect::Rect;
 use geom::size::Size2D;
 
-use std::comm;
-use std::task::TaskBuilder;
+use gfx::canvas_render_task::{CanvasMsg, CanvasRenderTask, ClearRect, Close, FillRect, Recreate, StrokeRect};
 
 #[deriving(Encodable)]
 pub struct CanvasRenderingContext2D {
@@ -25,73 +22,6 @@ pub struct CanvasRenderingContext2D {
     renderer: Untraceable<Sender<CanvasMsg>>,
 }
 
-enum CanvasMsg {
-    FillRect(Rect<f32>),
-    ClearRect(Rect<f32>),
-    StrokeRect(Rect<f32>),
-    Recreate(Size2D<i32>),
-    Close,
-}
-
-struct CanvasRenderTask {
-    drawtarget: DrawTarget,
-    fill_color: ColorPattern,
-    stroke_color: ColorPattern,
-    stroke_opts: StrokeOptions,
-}
-
-impl CanvasRenderTask {
-    fn new(size: Size2D<i32>) -> CanvasRenderTask {
-        CanvasRenderTask {
-            drawtarget: CanvasRenderTask::create(size),
-            fill_color: ColorPattern::new(Color::new(0., 0., 0., 1.)),
-            stroke_color: ColorPattern::new(Color::new(0., 0., 0., 1.)),
-            stroke_opts: StrokeOptions::new(1.0, 1.0),
-        }
-    }
-
-    fn start(size: Size2D<i32>) -> Sender<CanvasMsg> {
-        let (chan, port) = comm::channel::<CanvasMsg>();
-        let builder = TaskBuilder::new().named("CanvasTask");
-        builder.spawn(proc() {
-            let mut renderer = CanvasRenderTask::new(size);
-
-            loop {
-                match port.recv() {
-                    FillRect(ref rect) => renderer.fill_rect(rect),
-                    StrokeRect(ref rect) => renderer.stroke_rect(rect),
-                    ClearRect(ref rect) => renderer.clear_rect(rect),
-                    Recreate(size) => renderer.recreate(size),
-                    Close => break,
-                }
-            }
-        });
-        chan
-    }
-
-    fn fill_rect(&self, rect: &Rect<f32>) {
-        let drawopts = DrawOptions::new(1.0, 0);
-        self.drawtarget.fill_rect(rect, &self.fill_color, Some(&drawopts));
-    }
-
-    fn clear_rect(&self, rect: &Rect<f32>) {
-        self.drawtarget.clear_rect(rect);
-    }
-
-    fn stroke_rect(&self, rect: &Rect<f32>) {
-        let drawopts = DrawOptions::new(1.0, 0);
-        self.drawtarget.stroke_rect(rect, &self.stroke_color, &self.stroke_opts, &drawopts);
-    }
-
-    fn create(size: Size2D<i32>) -> DrawTarget {
-        DrawTarget::new(SkiaBackend, size, B8G8R8A8)
-    }
-
-    fn recreate(&mut self, size: Size2D<i32>) {
-        self.drawtarget = CanvasRenderTask::create(size);
-    }
-}
-
 impl CanvasRenderingContext2D {
     pub fn new_inherited(global: &GlobalRef, size: Size2D<i32>) -> CanvasRenderingContext2D {
         CanvasRenderingContext2D {
diff --git a/src/components/script/script.rs b/src/components/script/script.rs
index f07646c4ff6..80c71e0499f 100644
--- a/src/components/script/script.rs
+++ b/src/components/script/script.rs
@@ -19,7 +19,6 @@
 #[phase(plugin, link)]
 extern crate log;
 
-extern crate azure;
 extern crate debug;
 extern crate cssparser;
 extern crate collections;
@@ -42,6 +41,7 @@ extern crate style;
 extern crate sync;
 extern crate servo_msg = "msg";
 extern crate url = "url_";
+extern crate gfx;
 
 pub mod cors;