Replace Au::zero_* with generic methods

src/components/gfx/font.rs

@@ -7,6 +7,7 @@ use azure::azure_hl::{BackendType, ColorPattern};
 use azure::scaled_font::ScaledFont;
 use geom::{Point2D, Rect, Size2D};
 use std::cast;
+use std::num::Zero;
 use std::ptr;
 use std::str;
 use std::rc::Rc;
@@ -366,7 +367,7 @@ impl Font {
         for (glyphs, _offset, slice_range) in run.iter_slices_for_range(range) {
             for (_i, glyph) in glyphs.iter_glyphs_for_char_range(&slice_range) {
                 let glyph_advance = glyph.advance();
-                let glyph_offset = glyph.offset().unwrap_or(Au::zero_point());
+                let glyph_offset = glyph.offset().unwrap_or(Zero::zero());
 
                 let azglyph = struct__AzGlyph {
                     mIndex: glyph.index() as uint32_t,

src/components/gfx/text/glyph.rs

@@ -5,10 +5,9 @@
 use servo_util::vec::*;
 use servo_util::range::Range;
 use servo_util::geometry::Au;
-use servo_util::geometry;
 
 use std::cmp::{Ord, Eq};
-use std::num::NumCast;
+use std::num::{NumCast, Zero};
 use std::mem;
 use std::u16;
 use std::slice;
@@ -441,7 +440,7 @@ impl GlyphData {
                ligature_start: bool)
             -> GlyphData {
         let offset = match offset {
-            None => geometry::zero_point(),
+            None => Zero::zero(),
             Some(o) => o
         };
 
@@ -536,7 +535,7 @@ impl<'a> GlyphStore {
         fn glyph_is_compressible(data: &GlyphData) -> bool {
             is_simple_glyph_id(data.index)
                 && is_simple_advance(data.advance)
-                && data.offset == geometry::zero_point()
+                && data.offset.is_zero()
                 && data.cluster_start  // others are stored in detail buffer
         }
 

src/components/main/layout/block.rs

@@ -36,6 +36,7 @@ use servo_msg::compositor_msg::{FixedPosition, LayerId, Scrollable};
 use servo_util::geometry::Au;
 use servo_util::geometry;
 use servo_util::smallvec::{SmallVec, SmallVec0};
+use std::num::Zero;
 use style::computed_values::{LPA_Auto, LPA_Length, LPA_Percentage, LPN_Length, LPN_None};
 use style::computed_values::{LPN_Percentage, LP_Length, LP_Percentage};
 use sync::Arc;
@@ -1548,7 +1549,7 @@ impl Flow for BlockFlow {
 
         if self.is_root() {
             debug!("Setting root position");
-            self.base.position.origin = Au::zero_point();
+            self.base.position.origin = Zero::zero();
             self.base.position.size.width = ctx.screen_size.width;
             self.base.floats = Floats::new();
             // Root element is not floated

src/components/main/layout/box_.rs

@@ -430,7 +430,7 @@ impl Box {
         Box {
             node: OpaqueNodeMethods::from_thread_safe_layout_node(node),
             style: node.style().clone(),
-            border_box: RefCell::new(Au::zero_rect()),
+            border_box: RefCell::new(Rect::zero()),
             border: RefCell::new(Zero::zero()),
             padding: RefCell::new(Zero::zero()),
             margin: RefCell::new(Zero::zero()),
@@ -446,7 +446,7 @@ impl Box {
         Box {
             node: OpaqueNodeMethods::from_thread_safe_layout_node(node),
             style: node.style().clone(),
-            border_box: RefCell::new(Au::zero_rect()),
+            border_box: RefCell::new(Rect::zero()),
             border: RefCell::new(Zero::zero()),
             padding: RefCell::new(Zero::zero()),
             margin: RefCell::new(Zero::zero()),
@@ -473,7 +473,7 @@ impl Box {
         Box {
             node: OpaqueNodeMethods::from_thread_safe_layout_node(node),
             style: Arc::new(node_style),
-            border_box: RefCell::new(Au::zero_rect()),
+            border_box: RefCell::new(Rect::zero()),
             border: RefCell::new(Zero::zero()),
             padding: RefCell::new(Zero::zero()),
             margin: RefCell::new(Zero::zero()),
@@ -492,7 +492,7 @@ impl Box {
         Box {
             node: node,
             style: style,
-            border_box: RefCell::new(Au::zero_rect()),
+            border_box: RefCell::new(Rect::zero()),
             border: RefCell::new(Zero::zero()),
             padding: RefCell::new(Zero::zero()),
             margin: RefCell::new(Zero::zero()),

src/components/main/layout/flow.rs

@@ -818,8 +818,8 @@ impl BaseFlow {
             prev_sibling: Rawlink::none(),
 
             intrinsic_widths: IntrinsicWidths::new(),
-            position: Au::zero_rect(),
+            position: Rect::zero(),
-            overflow: Au::zero_rect(),
+            overflow: Rect::zero(),
 
             parallel: FlowParallelInfo::new(),
 

src/components/main/layout/layout_task.rs

@@ -749,7 +749,7 @@ impl LayoutTask {
                         union_boxes_for_node(&mut rect, display_list.iter(), node)
                     }
                 }
-                reply_chan.send(ContentBoxResponse(rect.unwrap_or(Au::zero_rect())))
+                reply_chan.send(ContentBoxResponse(rect.unwrap_or(Rect::zero())))
             }
             ContentBoxesQuery(node, reply_chan) => {
                 let node: OpaqueNode = OpaqueNodeMethods::from_script_node(node);

src/components/util/geometry.rs

@@ -4,7 +4,6 @@
 
 use geom::point::Point2D;
 use geom::rect::Rect;
-use geom::size::Size2D;
 
 use std::num::{NumCast, One, Zero};
 use std::fmt;
@@ -152,17 +151,6 @@ impl Au {
                        else { return Au(s - res) };
     }
 
-    #[inline]
-    pub fn zero_point() -> Point2D<Au> {
-        Point2D(Au(0), Au(0))
-    }
-
-    #[inline]
-    pub fn zero_rect() -> Rect<Au> {
-        let z = Au(0);
-        Rect(Point2D(z, z), Size2D(z, z))
-    }
-
     #[inline]
     pub fn from_pt(pt: f64) -> Au {
         from_px(pt_to_px(pt) as int)
@@ -198,19 +186,6 @@ pub fn px_to_pt(px: f64) -> f64 {
     px / 96f64 * 72f64
 }
 
-pub fn zero_rect() -> Rect<Au> {
-    let z = Au(0);
-    Rect(Point2D(z, z), Size2D(z, z))
-}
-
-pub fn zero_point() -> Point2D<Au> {
-    Point2D(Au(0), Au(0))
-}
-
-pub fn zero_size() -> Size2D<Au> {
-    Size2D(Au(0), Au(0))
-}
-
 pub fn from_frac_px(px: f64) -> Au {
     Au((px * 60f64) as i32)
 }

src/support/geom/rust-geom

@@ -1 +1 @@
-Subproject commit 8d67075e4affa75fc0872ebfdcc9b3ec8c6fe69b
+Subproject commit ab55c3f4f6edab87fe5802c58866d1e4455232ab