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Make it possible to build the style_traits crate with a stable compiler.

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Testing this on CI to make sure we don’t regress it is blocked on #11806
This commit is contained in:
Simon Sapin 2016-06-21 13:55:50 +02:00
parent b9b289c4be
commit ea73c8efac
20 changed files with 145 additions and 89 deletions
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8
components/util/geometry.rs
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@ -23,7 +23,7 @@ use std::i32;
///
/// The ratio between ScreenPx and DevicePixel for a given display be found by calling
/// `servo::windowing::WindowMethods::hidpi_factor`.
#[derive(Clone, Copy, Debug, HeapSizeOf)]
#[derive(Clone, Copy, Debug)]
pub enum ScreenPx {}
/// One CSS "px" in the coordinate system of the "initial viewport":
@ -35,7 +35,7 @@ pub enum ScreenPx {}
///
/// At the default zoom level of 100%, one PagePx is equal to one ScreenPx. However, if the
/// document is zoomed in or out then this scale may be larger or smaller.
#[derive(Clone, Copy, Debug, HeapSizeOf)]
#[derive(Clone, Copy, Debug)]
pub enum ViewportPx {}
/// One CSS "px" in the root coordinate system for the content document.
@ -44,9 +44,11 @@ pub enum ViewportPx {}
/// This is the mobile-style "pinch zoom" that enlarges content without reflowing it. When the
/// viewport zoom is not equal to 1.0, then the layout viewport is no longer the same physical size
/// as the viewable area.
#[derive(Clone, Copy, Debug, HeapSizeOf)]
#[derive(Clone, Copy, Debug)]
pub enum PagePx {}
known_heap_size!(0, ScreenPx, ViewportPx, PagePx);
// In summary, the hierarchy of pixel units and the factors to convert from one to the next:
//
// DevicePixel