objc2_core_text/generated/

CTFrame.rs

//! This file has been automatically generated by `objc2`'s `header-translator`.
//! DO NOT EDIT
use core::cell::UnsafeCell;
use core::ffi::*;
use core::marker::{PhantomData, PhantomPinned};
use core::ptr::NonNull;
#[cfg(feature = "objc2")]
use objc2::__framework_prelude::*;
use objc2_core_foundation::*;
#[cfg(feature = "objc2-core-graphics")]
use objc2_core_graphics::*;

use crate::*;

/// [Apple's documentation](https://developer.apple.com/documentation/coretext/ctframe?language=objc)
#[repr(C)]
pub struct CTFrame {
    inner: [u8; 0],
    _p: UnsafeCell<PhantomData<(*const UnsafeCell<()>, PhantomPinned)>>,
}

cf_type!(
    #[encoding_name = "__CTFrame"]
    unsafe impl CTFrame {}
);

unsafe impl ConcreteType for CTFrame {
    /// Returns the CFType of the frame object
    #[doc(alias = "CTFrameGetTypeID")]
    #[inline]
    fn type_id() -> CFTypeID {
        extern "C-unwind" {
            fn CTFrameGetTypeID() -> CFTypeID;
        }
        unsafe { CTFrameGetTypeID() }
    }
}

/// These constants specify frame progression types.
///
///
/// The lines of text within a frame may be stacked for either
/// horizontal or vertical text. Values are enumerated for each
/// stacking type supported by CTFrame. Frames created with a
/// progression type specifying vertical text will rotate lines
/// 90 degrees counterclockwise when drawing.
///
///
/// Lines are stacked top to bottom for horizontal text.
///
///
/// Lines are stacked right to left for vertical text.
///
///
/// Lines are stacked left to right for vertical text.
///
/// See also [Apple's documentation](https://developer.apple.com/documentation/coretext/ctframeprogression?language=objc)
// NS_ENUM
#[repr(transparent)]
#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash, PartialOrd, Ord)]
pub struct CTFrameProgression(pub u32);
impl CTFrameProgression {
    #[doc(alias = "kCTFrameProgressionTopToBottom")]
    pub const TopToBottom: Self = Self(0);
    #[doc(alias = "kCTFrameProgressionRightToLeft")]
    pub const RightToLeft: Self = Self(1);
    #[doc(alias = "kCTFrameProgressionLeftToRight")]
    pub const LeftToRight: Self = Self(2);
}

#[cfg(feature = "objc2")]
unsafe impl Encode for CTFrameProgression {
    const ENCODING: Encoding = u32::ENCODING;
}

#[cfg(feature = "objc2")]
unsafe impl RefEncode for CTFrameProgression {
    const ENCODING_REF: Encoding = Encoding::Pointer(&Self::ENCODING);
}

extern "C" {
    /// Specifies progression for a frame.
    ///
    ///
    /// Value must be a CFNumberRef containing a CTFrameProgression.
    /// Default is kCTFrameProgressionTopToBottom. This value determines
    /// the line stacking behavior for a frame and does not affect the
    /// appearance of the glyphs within that frame.
    ///
    ///
    /// See also: CTFramesetterCreateFrame
    ///
    /// See also [Apple's documentation](https://developer.apple.com/documentation/coretext/kctframeprogressionattributename?language=objc)
    pub static kCTFrameProgressionAttributeName: &'static CFString;
}

/// These constants specify fill rule used by the frame.
///
///
/// When a path intersects with itself, the client should specify which rule to use for deciding the
/// area of the path.
///
///
/// Text is filled in the area that would be painted if the path were given to CGContextEOFillPath.
///
///
/// Text is fill in the area that would be painted if the path were given to CGContextFillPath.
///
/// See also [Apple's documentation](https://developer.apple.com/documentation/coretext/ctframepathfillrule?language=objc)
// NS_ENUM
#[repr(transparent)]
#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash, PartialOrd, Ord)]
pub struct CTFramePathFillRule(pub u32);
impl CTFramePathFillRule {
    #[doc(alias = "kCTFramePathFillEvenOdd")]
    pub const EvenOdd: Self = Self(0);
    #[doc(alias = "kCTFramePathFillWindingNumber")]
    pub const WindingNumber: Self = Self(1);
}

#[cfg(feature = "objc2")]
unsafe impl Encode for CTFramePathFillRule {
    const ENCODING: Encoding = u32::ENCODING;
}

#[cfg(feature = "objc2")]
unsafe impl RefEncode for CTFramePathFillRule {
    const ENCODING_REF: Encoding = Encoding::Pointer(&Self::ENCODING);
}

extern "C" {
    /// Specifies fill rule for a frame if this attribute is used at top level of frameAttributes dictionary, or specify
    /// fill rule for a clipping path if used in a dictionary contained in an array specified by kCTFrameClippingPathsAttributeName.
    ///
    ///
    /// Value must be a CFNumberRef containing kCTFramePathFillEvenOdd or kCTFramePathFillWindingNumber.
    /// Default is kCTFramePathFillEvenOdd.
    ///
    ///
    /// See also: CTFramesetterCreateFrame
    ///
    /// See also [Apple's documentation](https://developer.apple.com/documentation/coretext/kctframepathfillruleattributename?language=objc)
    pub static kCTFramePathFillRuleAttributeName: &'static CFString;
}

extern "C" {
    /// Specifies frame width if this attribute is used at top level of frameAttributes dictionary, or specify
    /// clipping path width if used in a dictionary contained in an array specified by kCTFrameClippingPathsAttributeName.
    ///
    ///
    /// Value must be a CFNumberRef specifying frame width.
    /// Default is zero.
    ///
    ///
    /// See also: CTFramesetterCreateFrame
    ///
    /// See also [Apple's documentation](https://developer.apple.com/documentation/coretext/kctframepathwidthattributename?language=objc)
    pub static kCTFramePathWidthAttributeName: &'static CFString;
}

extern "C" {
    /// Specifies array of paths to clip frame.
    ///
    ///
    /// Value must be a CFArrayRef containing CFDictionaryRefs or CGPathRef.  (CGPathRef is allowed on 10.8 or later.)
    /// Each dictionary should have a kCTFramePathClippingPathAttributeName key-value pair, and can have a kCTFramePathFillRuleAttributeName key-value pair
    /// and kCTFramePathFillRuleAttributeName key-value pair as optional parameters.  In case of CGPathRef, default fill rule (kCTFramePathFillEvenOdd) and width (0.0) are used.
    ///
    ///
    /// See also: CTFramesetterCreateFrame
    ///
    /// See also [Apple's documentation](https://developer.apple.com/documentation/coretext/kctframeclippingpathsattributename?language=objc)
    pub static kCTFrameClippingPathsAttributeName: &'static CFString;
}

extern "C" {
    /// Specifies clipping path.  This attribute is valid in a dictionary contained in an array specified by kCTFrameClippingPathsAttributeName.
    /// On 10.8 or later, This attribute is also valid in frameAttributes dictionary passed to CTFramesetterCreateFrame.
    ///
    ///
    /// Value must be a CGPathRef specifying a clipping path.
    ///
    ///
    /// See also: kCTFrameClippingPathsAttributeName
    ///
    /// See also [Apple's documentation](https://developer.apple.com/documentation/coretext/kctframepathclippingpathattributename?language=objc)
    pub static kCTFramePathClippingPathAttributeName: &'static CFString;
}

extern "C-unwind" {
    /// Returns the range of characters that were originally requested
    /// to fill the frame.
    ///
    ///
    /// Parameter `frame`: The frame that you want to get the character range from.
    ///
    ///
    /// Returns: This function will return a CFRange containing the backing
    /// store range of characters that were originally requested
    /// to fill the frame. If the function call is not successful,
    /// then an empty range will be returned.
    pub fn CTFrameGetStringRange(frame: &CTFrame) -> CFRange;
}

extern "C-unwind" {
    /// Returns the range of characters that actually fit in the
    /// frame.
    ///
    ///
    /// This can be used to chain frames, as it returns the range of
    /// characters that can be seen in the frame. The next frame would
    /// start where this frame ends.
    ///
    ///
    /// Parameter `frame`: The frame that you want to get the visible character range
    /// from.
    ///
    ///
    /// Returns: This function will return a CFRange containing the backing
    /// store range of characters that fit into the frame. If the
    /// function call is not successful, or if no characters fit
    /// in the frame, then an empty range will be returned.
    pub fn CTFrameGetVisibleStringRange(frame: &CTFrame) -> CFRange;
}

/// Returns the path used to create the frame.
///
///
/// Parameter `frame`: The frame that you want to obtain the path from.
#[cfg(feature = "objc2-core-graphics")]
#[inline]
pub unsafe extern "C-unwind" fn CTFrameGetPath(frame: &CTFrame) -> CFRetained<CGPath> {
    extern "C-unwind" {
        fn CTFrameGetPath(frame: &CTFrame) -> Option<NonNull<CGPath>>;
    }
    let ret = unsafe { CTFrameGetPath(frame) };
    let ret = ret.expect("function was marked as returning non-null, but actually returned NULL");
    unsafe { CFRetained::retain(ret) }
}

/// Returns the frame attributes used to create the frame.
///
///
/// It is possible to create a frame with an attributes dictionary
/// in order to control various aspects of the framing process.
/// These attributes are different from the ones that are used to
/// create an attributed string.
///
///
/// Parameter `frame`: The frame that you want to obtain the frame attributes from.
///
///
/// Returns: This function will return a CFDictionary containing the
/// frame attributes that were used to create the frame. If the
/// frame was created without any frame attributes, this function
/// will return NULL.
#[inline]
pub unsafe extern "C-unwind" fn CTFrameGetFrameAttributes(
    frame: &CTFrame,
) -> Option<CFRetained<CFDictionary>> {
    extern "C-unwind" {
        fn CTFrameGetFrameAttributes(frame: &CTFrame) -> Option<NonNull<CFDictionary>>;
    }
    let ret = unsafe { CTFrameGetFrameAttributes(frame) };
    ret.map(|ret| unsafe { CFRetained::retain(ret) })
}

/// Returns an array of lines that make up the frame.
///
///
/// This function will return an array of CTLine objects that are
/// stored in the frame. These line objects can be accessed and
/// manipulated in any way that normal line objects can be. It is
/// possible that an empty frame exists. That is, a frame in which
/// no lines exist. In this case, the returned array will have 0
/// entries.
///
///
/// Parameter `frame`: The frame that you want to obtain the line array from.
///
///
/// Returns: This function will return a CFArray object containing the
/// CTLine objects that make up the frame.
#[inline]
pub unsafe extern "C-unwind" fn CTFrameGetLines(frame: &CTFrame) -> CFRetained<CFArray> {
    extern "C-unwind" {
        fn CTFrameGetLines(frame: &CTFrame) -> Option<NonNull<CFArray>>;
    }
    let ret = unsafe { CTFrameGetLines(frame) };
    let ret = ret.expect("function was marked as returning non-null, but actually returned NULL");
    unsafe { CFRetained::retain(ret) }
}

extern "C-unwind" {
    /// Copies a range of line origins for a frame.
    ///
    ///
    /// This function will copy a range of CGPoint structures. Each
    /// CGPoint is the origin of the corresponding line in the array of
    /// lines returned by CTFrameGetLines, relative to the origin of the
    /// frame's path. The maximum number of line origins returned by
    /// this function is the count of the array of lines.
    ///
    ///
    /// Parameter `frame`: The frame that you want to obtain the line origin array from.
    ///
    ///
    /// Parameter `range`: The range of line origins you wish to copy. If the length of the
    /// range is set to 0, then the copy operation will continue from
    /// the range's start index to the last line origin.
    ///
    ///
    /// Parameter `origins`: The buffer to which the origins will be copied. The buffer must
    /// have at least as many elements as specified by range's length.
    /// When using the origins to calculate measurements for a frame's
    /// contents, remember that line origins do not always correspond to
    /// line metrics; paragraph style settings can affect line origins,
    /// for one. The overall typographic bounds of a frame may generally
    /// be calculated as the difference between the top of the frame and
    /// the descent of the last line. This will obviously exclude any
    /// spacing following the last line, but such spacing has no effect
    /// on framesetting in the first place.
    pub fn CTFrameGetLineOrigins(frame: &CTFrame, range: CFRange, origins: NonNull<CGPoint>);
}

extern "C-unwind" {
    /// Draws an entire frame to a context.
    ///
    ///
    /// This function will draw an entire frame to the context. Note
    /// that this call may leave the context in any state and does not
    /// flush it after the draw operation.
    ///
    ///
    /// Parameter `frame`: The frame that you want to draw.
    ///
    ///
    /// Parameter `context`: The context to draw the frame to.
    ///
    ///
    /// If both the frame and the context are valid, the frame will be
    /// drawn in the context.
    #[cfg(feature = "objc2-core-graphics")]
    pub fn CTFrameDraw(frame: &CTFrame, context: &CGContext);
}