Struct libR_sys::_DevDesc

source · 
#[repr(C)]
pub struct _DevDesc {
Show 83 fields
    pub left: f64,
    pub right: f64,
    pub bottom: f64,
    pub top: f64,
    pub clipLeft: f64,
    pub clipRight: f64,
    pub clipBottom: f64,
    pub clipTop: f64,
    pub xCharOffset: f64,
    pub yCharOffset: f64,
    pub yLineBias: f64,
    pub ipr: [f64; 2],
    pub cra: [f64; 2],
    pub gamma: f64,
    pub canClip: Rboolean,
    pub canChangeGamma: Rboolean,
    pub canHAdj: c_int,
    pub startps: f64,
    pub startcol: c_int,
    pub startfill: c_int,
    pub startlty: c_int,
    pub startfont: c_int,
    pub startgamma: f64,
    pub deviceSpecific: *mut c_void,
    pub displayListOn: Rboolean,
    pub canGenMouseDown: Rboolean,
    pub canGenMouseMove: Rboolean,
    pub canGenMouseUp: Rboolean,
    pub canGenKeybd: Rboolean,
    pub canGenIdle: Rboolean,
    pub gettingEvent: Rboolean,
    pub activate: Option<unsafe extern "C" fn(arg1: pDevDesc)>,
    pub circle: Option<unsafe extern "C" fn(x: f64, y: f64, r: f64, gc: pGEcontext, dd: pDevDesc)>,
    pub clip: Option<unsafe extern "C" fn(x0: f64, x1: f64, y0: f64, y1: f64, dd: pDevDesc)>,
    pub close: Option<unsafe extern "C" fn(dd: pDevDesc)>,
    pub deactivate: Option<unsafe extern "C" fn(arg1: pDevDesc)>,
    pub locator: Option<unsafe extern "C" fn(x: *mut f64, y: *mut f64, dd: pDevDesc) -> Rboolean>,
    pub line: Option<unsafe extern "C" fn(x1: f64, y1: f64, x2: f64, y2: f64, gc: pGEcontext, dd: pDevDesc)>,
    pub metricInfo: Option<unsafe extern "C" fn(c: c_int, gc: pGEcontext, ascent: *mut f64, descent: *mut f64, width: *mut f64, dd: pDevDesc)>,
    pub mode: Option<unsafe extern "C" fn(mode: c_int, dd: pDevDesc)>,
    pub newPage: Option<unsafe extern "C" fn(gc: pGEcontext, dd: pDevDesc)>,
    pub polygon: Option<unsafe extern "C" fn(n: c_int, x: *mut f64, y: *mut f64, gc: pGEcontext, dd: pDevDesc)>,
    pub polyline: Option<unsafe extern "C" fn(n: c_int, x: *mut f64, y: *mut f64, gc: pGEcontext, dd: pDevDesc)>,
    pub rect: Option<unsafe extern "C" fn(x0: f64, y0: f64, x1: f64, y1: f64, gc: pGEcontext, dd: pDevDesc)>,
    pub path: Option<unsafe extern "C" fn(x: *mut f64, y: *mut f64, npoly: c_int, nper: *mut c_int, winding: Rboolean, gc: pGEcontext, dd: pDevDesc)>,
    pub raster: Option<unsafe extern "C" fn(raster: *mut c_uint, w: c_int, h: c_int, x: f64, y: f64, width: f64, height: f64, rot: f64, interpolate: Rboolean, gc: pGEcontext, dd: pDevDesc)>,
    pub cap: Option<unsafe extern "C" fn(dd: pDevDesc) -> SEXP>,
    pub size: Option<unsafe extern "C" fn(left: *mut f64, right: *mut f64, bottom: *mut f64, top: *mut f64, dd: pDevDesc)>,
    pub strWidth: Option<unsafe extern "C" fn(str_: *const c_char, gc: pGEcontext, dd: pDevDesc) -> f64>,
    pub text: Option<unsafe extern "C" fn(x: f64, y: f64, str_: *const c_char, rot: f64, hadj: f64, gc: pGEcontext, dd: pDevDesc)>,
    pub onExit: Option<unsafe extern "C" fn(dd: pDevDesc)>,
    pub getEvent: Option<unsafe extern "C" fn(arg1: SEXP, arg2: *const c_char) -> SEXP>,
    pub newFrameConfirm: Option<unsafe extern "C" fn(dd: pDevDesc) -> Rboolean>,
    pub hasTextUTF8: Rboolean,
    pub textUTF8: Option<unsafe extern "C" fn(x: f64, y: f64, str_: *const c_char, rot: f64, hadj: f64, gc: pGEcontext, dd: pDevDesc)>,
    pub strWidthUTF8: Option<unsafe extern "C" fn(str_: *const c_char, gc: pGEcontext, dd: pDevDesc) -> f64>,
    pub wantSymbolUTF8: Rboolean,
    pub useRotatedTextInContour: Rboolean,
    pub eventEnv: SEXP,
    pub eventHelper: Option<unsafe extern "C" fn(dd: pDevDesc, code: c_int)>,
    pub holdflush: Option<unsafe extern "C" fn(dd: pDevDesc, level: c_int) -> c_int>,
    pub haveTransparency: c_int,
    pub haveTransparentBg: c_int,
    pub haveRaster: c_int,
    pub haveCapture: c_int,
    pub haveLocator: c_int,
    pub setPattern: Option<unsafe extern "C" fn(pattern: SEXP, dd: pDevDesc) -> SEXP>,
    pub releasePattern: Option<unsafe extern "C" fn(ref_: SEXP, dd: pDevDesc)>,
    pub setClipPath: Option<unsafe extern "C" fn(path: SEXP, ref_: SEXP, dd: pDevDesc) -> SEXP>,
    pub releaseClipPath: Option<unsafe extern "C" fn(ref_: SEXP, dd: pDevDesc)>,
    pub setMask: Option<unsafe extern "C" fn(path: SEXP, ref_: SEXP, dd: pDevDesc) -> SEXP>,
    pub releaseMask: Option<unsafe extern "C" fn(ref_: SEXP, dd: pDevDesc)>,
    pub deviceVersion: c_int,
    pub deviceClip: Rboolean,
    pub defineGroup: Option<unsafe extern "C" fn(source: SEXP, op: c_int, destination: SEXP, dd: pDevDesc) -> SEXP>,
    pub useGroup: Option<unsafe extern "C" fn(ref_: SEXP, trans: SEXP, dd: pDevDesc)>,
    pub releaseGroup: Option<unsafe extern "C" fn(ref_: SEXP, dd: pDevDesc)>,
    pub stroke: Option<unsafe extern "C" fn(path: SEXP, gc: pGEcontext, dd: pDevDesc)>,
    pub fill: Option<unsafe extern "C" fn(path: SEXP, rule: c_int, gc: pGEcontext, dd: pDevDesc)>,
    pub fillStroke: Option<unsafe extern "C" fn(path: SEXP, rule: c_int, gc: pGEcontext, dd: pDevDesc)>,
    pub capabilities: Option<unsafe extern "C" fn(cap: SEXP) -> SEXP>,
    pub glyph: Option<unsafe extern "C" fn(n: c_int, glyphs: *mut c_int, x: *mut f64, y: *mut f64, font: SEXP, size: f64, colour: c_int, rot: f64, dd: pDevDesc)>,
    pub reserved: [c_char; 64],

}

Fields§

§left: f64

left raster coordinate

§right: f64

right raster coordinate

§bottom: f64

bottom raster coordinate

§top: f64

top raster coordinate

§clipLeft: f64

R only has the notion of a rectangular clipping region

§clipRight: f64§clipBottom: f64§clipTop: f64§xCharOffset: f64

x character addressing offset - unused

§yCharOffset: f64

y character addressing offset

§yLineBias: f64

1/2 interline space as frac of line height

§ipr: [f64; 2]

Inches per raster; [0]=x, [1]=y

§cra: [f64; 2]

Character size in rasters; [0]=x, [1]=y

§gamma: f64

(initial) Device Gamma Correction

§canClip: Rboolean

Device-level clipping

§canChangeGamma: Rboolean

can the gamma factor be modified?

§canHAdj: c_int

Can do at least some horiz adjust of text 0 = none, 1 = {0,0.5,1}, 2 = [0,1]

§startps: f64

Device initial settings / /* These are things that the device must set up when it is created. The graphics system can modify them and track current values,

§startcol: c_int

sets par(“fg”), par(“col”) and gpar(“col”)

§startfill: c_int

sets par(“bg”) and gpar(“fill”)

§startlty: c_int§startfont: c_int§startgamma: f64§deviceSpecific: *mut c_void

pointer to device specific parameters

§displayListOn: Rboolean

toggle for initial display list status

§canGenMouseDown: Rboolean

can the device generate mousedown events

§canGenMouseMove: Rboolean

can the device generate mousemove events

§canGenMouseUp: Rboolean

can the device generate mouseup events

§canGenKeybd: Rboolean

can the device generate keyboard events

§canGenIdle: Rboolean

can the device generate idle events

§gettingEvent: Rboolean

This is set while getGraphicsEvent is actively looking for events

§activate: Option<unsafe extern "C" fn(arg1: pDevDesc)>§circle: Option<unsafe extern "C" fn(x: f64, y: f64, r: f64, gc: pGEcontext, dd: pDevDesc)>§clip: Option<unsafe extern "C" fn(x0: f64, x1: f64, y0: f64, y1: f64, dd: pDevDesc)>§close: Option<unsafe extern "C" fn(dd: pDevDesc)>§deactivate: Option<unsafe extern "C" fn(arg1: pDevDesc)>§locator: Option<unsafe extern "C" fn(x: *mut f64, y: *mut f64, dd: pDevDesc) -> Rboolean>§line: Option<unsafe extern "C" fn(x1: f64, y1: f64, x2: f64, y2: f64, gc: pGEcontext, dd: pDevDesc)>§metricInfo: Option<unsafe extern "C" fn(c: c_int, gc: pGEcontext, ascent: *mut f64, descent: *mut f64, width: *mut f64, dd: pDevDesc)>§mode: Option<unsafe extern "C" fn(mode: c_int, dd: pDevDesc)>§newPage: Option<unsafe extern "C" fn(gc: pGEcontext, dd: pDevDesc)>§polygon: Option<unsafe extern "C" fn(n: c_int, x: *mut f64, y: *mut f64, gc: pGEcontext, dd: pDevDesc)>§polyline: Option<unsafe extern "C" fn(n: c_int, x: *mut f64, y: *mut f64, gc: pGEcontext, dd: pDevDesc)>§rect: Option<unsafe extern "C" fn(x0: f64, y0: f64, x1: f64, y1: f64, gc: pGEcontext, dd: pDevDesc)>§path: Option<unsafe extern "C" fn(x: *mut f64, y: *mut f64, npoly: c_int, nper: *mut c_int, winding: Rboolean, gc: pGEcontext, dd: pDevDesc)>§raster: Option<unsafe extern "C" fn(raster: *mut c_uint, w: c_int, h: c_int, x: f64, y: f64, width: f64, height: f64, rot: f64, interpolate: Rboolean, gc: pGEcontext, dd: pDevDesc)>§cap: Option<unsafe extern "C" fn(dd: pDevDesc) -> SEXP>§size: Option<unsafe extern "C" fn(left: *mut f64, right: *mut f64, bottom: *mut f64, top: *mut f64, dd: pDevDesc)>§strWidth: Option<unsafe extern "C" fn(str_: *const c_char, gc: pGEcontext, dd: pDevDesc) -> f64>§text: Option<unsafe extern "C" fn(x: f64, y: f64, str_: *const c_char, rot: f64, hadj: f64, gc: pGEcontext, dd: pDevDesc)>§onExit: Option<unsafe extern "C" fn(dd: pDevDesc)>§getEvent: Option<unsafe extern "C" fn(arg1: SEXP, arg2: *const c_char) -> SEXP>

device_getEvent is no longer used, but the slot is kept for back compatibility of the structure.

§newFrameConfirm: Option<unsafe extern "C" fn(dd: pDevDesc) -> Rboolean>§hasTextUTF8: Rboolean

and strWidthUTF8

§textUTF8: Option<unsafe extern "C" fn(x: f64, y: f64, str_: *const c_char, rot: f64, hadj: f64, gc: pGEcontext, dd: pDevDesc)>§strWidthUTF8: Option<unsafe extern "C" fn(str_: *const c_char, gc: pGEcontext, dd: pDevDesc) -> f64>§wantSymbolUTF8: Rboolean§useRotatedTextInContour: Rboolean

Is rotated text good enough to be preferable to Hershey in contour labels? Old default was FALSE.

§eventEnv: SEXP

This is an environment holding event handlers.

§eventHelper: Option<unsafe extern "C" fn(dd: pDevDesc, code: c_int)>§holdflush: Option<unsafe extern "C" fn(dd: pDevDesc, level: c_int) -> c_int>§haveTransparency: c_int

1 = no, 2 = yes

§haveTransparentBg: c_int

1 = no, 2 = fully, 3 = semi

§haveRaster: c_int

1 = no, 2 = yes, 3 = except for missing values

§haveCapture: c_int

1 = no, 2 = yes

§haveLocator: c_int

1 = no, 2 = yes

§setPattern: Option<unsafe extern "C" fn(pattern: SEXP, dd: pDevDesc) -> SEXP>§releasePattern: Option<unsafe extern "C" fn(ref_: SEXP, dd: pDevDesc)>§setClipPath: Option<unsafe extern "C" fn(path: SEXP, ref_: SEXP, dd: pDevDesc) -> SEXP>§releaseClipPath: Option<unsafe extern "C" fn(ref_: SEXP, dd: pDevDesc)>§setMask: Option<unsafe extern "C" fn(path: SEXP, ref_: SEXP, dd: pDevDesc) -> SEXP>§releaseMask: Option<unsafe extern "C" fn(ref_: SEXP, dd: pDevDesc)>§deviceVersion: c_int

This should match R_GE_version, BUT it does not have to. It give the graphics engine a chance to work with graphics device packages BEFORE they update to changes in R_GE_version.

§deviceClip: Rboolean

This can be used to OVERRIDE canClip so that graphics engine leaves ALL clipping to the graphics device

§defineGroup: Option<unsafe extern "C" fn(source: SEXP, op: c_int, destination: SEXP, dd: pDevDesc) -> SEXP>§useGroup: Option<unsafe extern "C" fn(ref_: SEXP, trans: SEXP, dd: pDevDesc)>§releaseGroup: Option<unsafe extern "C" fn(ref_: SEXP, dd: pDevDesc)>§stroke: Option<unsafe extern "C" fn(path: SEXP, gc: pGEcontext, dd: pDevDesc)>§fill: Option<unsafe extern "C" fn(path: SEXP, rule: c_int, gc: pGEcontext, dd: pDevDesc)>§fillStroke: Option<unsafe extern "C" fn(path: SEXP, rule: c_int, gc: pGEcontext, dd: pDevDesc)>§capabilities: Option<unsafe extern "C" fn(cap: SEXP) -> SEXP>§glyph: Option<unsafe extern "C" fn(n: c_int, glyphs: *mut c_int, x: *mut f64, y: *mut f64, font: SEXP, size: f64, colour: c_int, rot: f64, dd: pDevDesc)>§reserved: [c_char; 64]

Area for future expansion. By zeroing this, devices are more likely to work if loaded into a later version of R than that they were compiled under.

Trait Implementations§

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impl Clone for _DevDesc

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fn clone(&self) -> _DevDesc

Returns a copy of the value. Read more
1.0.0 · source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for _DevDesc

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Copy for _DevDesc

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where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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where T: ?Sized,

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fn borrow(&self) -> &T

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impl<T> BorrowMut<T> for T
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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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type Owned = T

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Performs the conversion.
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