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76 lines
2.6 KiB
Rust
76 lines
2.6 KiB
Rust
//! `NcBoxMask`
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/// Controls the drawing of borders, gradients and corners.
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///
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/// NcBoxMax is defined in the least significant byte, where bits [3, 0] are
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/// are a border mask, and bits [7, 4] are a gradient mask.
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///
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/// The drawing of the corners is defined in the second byte,
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/// see [`NCBOXCORNER_MASK`].
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///
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/// ## Diagram
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///
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/// ```txt
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/// NCBOXMASK_TOP 0x0001 0b00000001
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/// NCBOXMASK_RIGHT 0x0002 0b00000010
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/// NCBOXMASK_BOTTOM 0x0004 0b00000100
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/// NCBOXMASK_LEFT 0x0008 0b00001000
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///
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/// NCBOXGRAD_TOP 0x0010 0b00010000
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/// NCBOXGRAD_RIGHT 0x0020 0b00100000
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/// NCBOXGRAD_BOTTOM 0x0040 0b01000000
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/// NCBOXGRAD_LEFT 0x0080 0b10000000
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///
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/// NCBOXCORNER_MASK 0x0300 0b00000111_00000000
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///
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/// NCBOXCORNER_SHIFT 8
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/// ```
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///
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/// ## Bit masks
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///
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/// - [NCBOXMASK_TOP]
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/// - [NCBOXMASK_RIGHT]
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/// - [NCBOXMASK_BOTTOM]
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/// - [NCBOXMASK_LEFT]
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///
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/// - [NCBOXGRAD_TOP]
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/// - [NCBOXGRAD_RIGHT]
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/// - [NCBOXGRAD_BOTTOM]
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/// - [NCBOXGRAD_LEFT]
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///
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/// - [NCBOXCORNER_MASK]
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/// - [NCBOXCORNER_SHIFT]
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///
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pub type NcBoxMask = u32;
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/// [NcBoxMask] top gradient mask.
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pub const NCBOXGRAD_TOP: NcBoxMask = crate::bindings::ffi::NCBOXGRAD_TOP;
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/// [NcBoxMask] right gradient mask.
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pub const NCBOXGRAD_RIGHT: NcBoxMask = crate::bindings::ffi::NCBOXGRAD_RIGHT;
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/// [NcBoxMask] bottom gradient mask.
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pub const NCBOXGRAD_BOTTOM: NcBoxMask = crate::bindings::ffi::NCBOXGRAD_BOTTOM;
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/// [NcBoxMask] left gradient mask.
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pub const NCBOXGRAD_LEFT: NcBoxMask = crate::bindings::ffi::NCBOXGRAD_LEFT;
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/// [NcBoxMask] top border mask.
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pub const NCBOXMASK_TOP: NcBoxMask = crate::bindings::ffi::NCBOXMASK_TOP;
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/// [NcBoxMask] right border mask.
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pub const NCBOXMASK_RIGHT: NcBoxMask = crate::bindings::ffi::NCBOXMASK_RIGHT;
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/// [NcBoxMask] bottom border mask.
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pub const NCBOXMASK_BOTTOM: NcBoxMask = crate::bindings::ffi::NCBOXMASK_BOTTOM;
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/// [NcBoxMask] left border mask.
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pub const NCBOXMASK_LEFT: NcBoxMask = crate::bindings::ffi::NCBOXMASK_LEFT;
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/// [NcBoxMask] corner mask to control the drawing of boxes corners.
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///
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/// By default, vertexes are drawn whether their connecting edges are drawn
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/// or not. The value of the bits control this, and are interpreted as the
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/// number of connecting edges necessary to draw a given corner.
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///
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/// At 0 (the default), corners are always drawn. At 3, corners are never drawn
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/// (since at most 2 edges can touch a box's corner).
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pub const NCBOXCORNER_MASK: NcBoxMask = crate::bindings::ffi::NCBOXCORNER_MASK;
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/// The number of bits [NCBOXCORNER_MASK] is shifted in [NcBoxMask].
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pub const NCBOXCORNER_SHIFT: NcBoxMask = crate::bindings::ffi::NCBOXCORNER_SHIFT;
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