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Rename ScreenPx to DeviceIndependentPixel.

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This commit is contained in:
Glenn Watson 2017-02-22 14:37:24 +10:00
parent ec5ed8edfd
commit 0af27a3434
9 changed files with 43 additions and 44 deletions
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6
components/style_traits/lib.rs
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@ -29,11 +29,11 @@ pub type UnsafeNode = (usize, usize);
/// One CSS "px" in the coordinate system of the "initial viewport":
/// http://www.w3.org/TR/css-device-adapt/#initial-viewport
///
/// `ViewportPx` is equal to `ScreenPx` times a "page zoom" factor controlled by the user. This is
/// `ViewportPx` is equal to `DeviceIndependentPixel` times a "page zoom" factor controlled by the user. This is
/// the desktop-style "full page" zoom that enlarges content but then reflows the layout viewport
/// so it still exactly fits the visible area.
///
/// At the default zoom level of 100%, one `PagePx` is equal to one `ScreenPx`. However, if the
/// At the default zoom level of 100%, one `PagePx` is equal to one `DeviceIndependentPixel`. However, if the
/// document is zoomed in or out then this scale may be larger or smaller.
#[derive(Clone, Copy, Debug)]
pub enum ViewportPx {}
@ -50,7 +50,7 @@ pub enum PagePx {}
// In summary, the hierarchy of pixel units and the factors to convert from one to the next:
//
// DevicePixel
// / hidpi_ratio => ScreenPx
// / hidpi_ratio => DeviceIndependentPixel
// / desktop_zoom => ViewportPx
// / pinch_zoom => PagePx