Struct CGContext

#[repr(C)]
pub struct CGContext { /* private fields */ }

Available on crate feature CGContext only.

Apple’s documentation

Implementations

impl CGContext

pub unsafe fn save_g_state(c: Option<&CGContext>)

Graphics state functions. *

pub unsafe fn restore_g_state(c: Option<&CGContext>)

pub unsafe fn scale_ctm(c: Option<&CGContext>, sx: CGFloat, sy: CGFloat)

Coordinate space transformations. *

pub unsafe fn translate_ctm(c: Option<&CGContext>, tx: CGFloat, ty: CGFloat)

pub unsafe fn rotate_ctm(c: Option<&CGContext>, angle: CGFloat)

pub unsafe fn concat_ctm(c: Option<&CGContext>, transform: CGAffineTransform)

pub unsafe fn ctm(c: Option<&CGContext>) -> CGAffineTransform

pub unsafe fn set_line_width(c: Option<&CGContext>, width: CGFloat)

Drawing attribute functions. *

pub unsafe fn set_line_cap(c: Option<&CGContext>, cap: CGLineCap)

Available on crate feature CGPath only.

pub unsafe fn set_line_join(c: Option<&CGContext>, join: CGLineJoin)

Available on crate feature CGPath only.

pub unsafe fn set_miter_limit(c: Option<&CGContext>, limit: CGFloat)

pub unsafe fn set_line_dash( c: Option<&CGContext>, phase: CGFloat, lengths: *const CGFloat, count: usize, )

pub unsafe fn set_flatness(c: Option<&CGContext>, flatness: CGFloat)

pub unsafe fn set_alpha(c: Option<&CGContext>, alpha: CGFloat)

pub unsafe fn set_blend_mode(c: Option<&CGContext>, mode: CGBlendMode)

pub unsafe fn begin_path(c: Option<&CGContext>)

Path construction functions. *

pub unsafe fn move_to_point(c: Option<&CGContext>, x: CGFloat, y: CGFloat)

pub unsafe fn add_line_to_point(c: Option<&CGContext>, x: CGFloat, y: CGFloat)

pub unsafe fn add_curve_to_point( c: Option<&CGContext>, cp1x: CGFloat, cp1y: CGFloat, cp2x: CGFloat, cp2y: CGFloat, x: CGFloat, y: CGFloat, )

pub unsafe fn add_quad_curve_to_point( c: Option<&CGContext>, cpx: CGFloat, cpy: CGFloat, x: CGFloat, y: CGFloat, )

pub unsafe fn close_path(c: Option<&CGContext>)

pub unsafe fn add_rect(c: Option<&CGContext>, rect: CGRect)

Path construction convenience functions. *

pub unsafe fn add_rects( c: Option<&CGContext>, rects: *const CGRect, count: usize, )

pub unsafe fn add_lines( c: Option<&CGContext>, points: *const CGPoint, count: usize, )

pub unsafe fn add_ellipse_in_rect(c: Option<&CGContext>, rect: CGRect)

pub unsafe fn add_arc( c: Option<&CGContext>, x: CGFloat, y: CGFloat, radius: CGFloat, start_angle: CGFloat, end_angle: CGFloat, clockwise: c_int, )

pub unsafe fn add_arc_to_point( c: Option<&CGContext>, x1: CGFloat, y1: CGFloat, x2: CGFloat, y2: CGFloat, radius: CGFloat, )

pub unsafe fn add_path(c: Option<&CGContext>, path: Option<&CGPath>)

Available on crate feature CGPath only.

pub unsafe fn replace_path_with_stroked_path(c: Option<&CGContext>)

pub unsafe fn is_path_empty(c: Option<&CGContext>) -> bool

Path information functions. *

pub unsafe fn path_current_point(c: Option<&CGContext>) -> CGPoint

pub unsafe fn path_bounding_box(c: Option<&CGContext>) -> CGRect

pub unsafe fn path(c: Option<&CGContext>) -> Option<CFRetained<CGPath>>

Available on crate feature CGPath only.

pub unsafe fn path_contains_point( c: Option<&CGContext>, point: CGPoint, mode: CGPathDrawingMode, ) -> bool

pub unsafe fn draw_path(c: Option<&CGContext>, mode: CGPathDrawingMode)

Path drawing functions. *

pub unsafe fn fill_path(c: Option<&CGContext>)

Path drawing convenience functions. *

pub unsafe fn eo_fill_path(c: Option<&CGContext>)

pub unsafe fn stroke_path(c: Option<&CGContext>)

pub unsafe fn fill_rect(c: Option<&CGContext>, rect: CGRect)

pub unsafe fn fill_rects( c: Option<&CGContext>, rects: *const CGRect, count: usize, )

pub unsafe fn stroke_rect(c: Option<&CGContext>, rect: CGRect)

pub unsafe fn stroke_rect_with_width( c: Option<&CGContext>, rect: CGRect, width: CGFloat, )

pub unsafe fn clear_rect(c: Option<&CGContext>, rect: CGRect)

pub unsafe fn fill_ellipse_in_rect(c: Option<&CGContext>, rect: CGRect)

pub unsafe fn stroke_ellipse_in_rect(c: Option<&CGContext>, rect: CGRect)

pub unsafe fn stroke_line_segments( c: Option<&CGContext>, points: *const CGPoint, count: usize, )

pub unsafe fn clip(c: Option<&CGContext>)

Clipping functions. *

pub unsafe fn eo_clip(c: Option<&CGContext>)

pub unsafe fn reset_clip(self: &CGContext)

pub unsafe fn clip_to_mask( c: Option<&CGContext>, rect: CGRect, mask: Option<&CGImage>, )

Available on crate feature CGImage only.

pub unsafe fn clip_bounding_box(c: Option<&CGContext>) -> CGRect

pub unsafe fn clip_to_rect(c: Option<&CGContext>, rect: CGRect)

Clipping convenience functions. *

pub unsafe fn clip_to_rects( c: Option<&CGContext>, rects: NonNull<CGRect>, count: usize, )

pub unsafe fn set_fill_color_with_color( c: Option<&CGContext>, color: Option<&CGColor>, )

Available on crate feature CGColor only.

Primitive color functions. *

pub unsafe fn set_stroke_color_with_color( c: Option<&CGContext>, color: Option<&CGColor>, )

Available on crate feature CGColor only.

pub unsafe fn set_fill_color_space( c: Option<&CGContext>, space: Option<&CGColorSpace>, )

Available on crate feature CGColorSpace only.

Color space functions. *

pub unsafe fn set_stroke_color_space( c: Option<&CGContext>, space: Option<&CGColorSpace>, )

Available on crate feature CGColorSpace only.

pub unsafe fn set_fill_color(c: Option<&CGContext>, components: *const CGFloat)

Color functions. *

pub unsafe fn set_stroke_color( c: Option<&CGContext>, components: *const CGFloat, )

pub unsafe fn set_fill_pattern( c: Option<&CGContext>, pattern: Option<&CGPattern>, components: *const CGFloat, )

Available on crate feature CGPattern only.

Pattern functions. *

pub unsafe fn set_stroke_pattern( c: Option<&CGContext>, pattern: Option<&CGPattern>, components: *const CGFloat, )

Available on crate feature CGPattern only.

pub unsafe fn set_pattern_phase(c: Option<&CGContext>, phase: CGSize)

pub unsafe fn set_gray_fill_color( c: Option<&CGContext>, gray: CGFloat, alpha: CGFloat, )

Color convenience functions. *

pub unsafe fn set_gray_stroke_color( c: Option<&CGContext>, gray: CGFloat, alpha: CGFloat, )

pub unsafe fn set_rgb_fill_color( c: Option<&CGContext>, red: CGFloat, green: CGFloat, blue: CGFloat, alpha: CGFloat, )

pub unsafe fn set_rgb_stroke_color( c: Option<&CGContext>, red: CGFloat, green: CGFloat, blue: CGFloat, alpha: CGFloat, )

pub unsafe fn set_cmyk_fill_color( c: Option<&CGContext>, cyan: CGFloat, magenta: CGFloat, yellow: CGFloat, black: CGFloat, alpha: CGFloat, )

pub unsafe fn set_cmyk_stroke_color( c: Option<&CGContext>, cyan: CGFloat, magenta: CGFloat, yellow: CGFloat, black: CGFloat, alpha: CGFloat, )

pub unsafe fn set_rendering_intent( c: Option<&CGContext>, intent: CGColorRenderingIntent, )

Available on crate feature CGColorSpace only.

Rendering intent. *

pub unsafe fn set_edr_target_headroom( self: &CGContext, headroom: c_float, ) -> bool

pub unsafe fn edr_target_headroom(self: &CGContext) -> c_float

pub unsafe fn draw_image( c: Option<&CGContext>, rect: CGRect, image: Option<&CGImage>, )

Available on crate feature CGImage only.

Image functions. *

pub unsafe fn draw_tiled_image( c: Option<&CGContext>, rect: CGRect, image: Option<&CGImage>, )

Available on crate feature CGImage only.

pub unsafe fn draw_image_applying_tone_mapping( self: &CGContext, r: CGRect, image: &CGImage, method: CGToneMapping, options: Option<&CFDictionary>, ) -> bool

Available on crate features CGImage and CGToneMapping only.

pub unsafe fn interpolation_quality( c: Option<&CGContext>, ) -> CGInterpolationQuality

pub unsafe fn set_interpolation_quality( c: Option<&CGContext>, quality: CGInterpolationQuality, )

pub unsafe fn set_shadow_with_color( c: Option<&CGContext>, offset: CGSize, blur: CGFloat, color: Option<&CGColor>, )

Available on crate feature CGColor only.

pub unsafe fn set_shadow(c: Option<&CGContext>, offset: CGSize, blur: CGFloat)

pub unsafe fn draw_linear_gradient( c: Option<&CGContext>, gradient: Option<&CGGradient>, start_point: CGPoint, end_point: CGPoint, options: CGGradientDrawingOptions, )

Available on crate feature CGGradient only.

pub unsafe fn draw_radial_gradient( c: Option<&CGContext>, gradient: Option<&CGGradient>, start_center: CGPoint, start_radius: CGFloat, end_center: CGPoint, end_radius: CGFloat, options: CGGradientDrawingOptions, )

Available on crate feature CGGradient only.

pub unsafe fn draw_conic_gradient( self: &CGContext, gradient: Option<&CGGradient>, center: CGPoint, angle: CGFloat, )

Available on crate feature CGGradient only.

pub unsafe fn draw_shading(c: Option<&CGContext>, shading: Option<&CGShading>)

Available on crate feature CGShading only.

pub unsafe fn set_character_spacing(c: Option<&CGContext>, spacing: CGFloat)

Text functions. *

pub unsafe fn set_text_position(c: Option<&CGContext>, x: CGFloat, y: CGFloat)

pub unsafe fn text_position(c: Option<&CGContext>) -> CGPoint

pub unsafe fn set_text_matrix(c: Option<&CGContext>, t: CGAffineTransform)

pub unsafe fn text_matrix(c: Option<&CGContext>) -> CGAffineTransform

pub unsafe fn set_text_drawing_mode( c: Option<&CGContext>, mode: CGTextDrawingMode, )

pub unsafe fn set_font(c: Option<&CGContext>, font: Option<&CGFont>)

Available on crate feature CGFont only.

pub unsafe fn set_font_size(c: Option<&CGContext>, size: CGFloat)

pub unsafe fn show_glyphs_at_positions( c: Option<&CGContext>, glyphs: *const CGGlyph, lpositions: *const CGPoint, count: usize, )

Available on crate feature CGFont only.

pub unsafe fn draw_pdf_page(c: Option<&CGContext>, page: Option<&CGPDFPage>)

Available on crate feature CGPDFPage only.

PDF functions. *

pub unsafe fn begin_page(c: Option<&CGContext>, media_box: *const CGRect)

Output page functions. *

pub unsafe fn end_page(c: Option<&CGContext>)

pub unsafe fn flush(c: Option<&CGContext>)

pub unsafe fn synchronize(c: Option<&CGContext>)

pub unsafe fn set_should_antialias( c: Option<&CGContext>, should_antialias: bool, )

pub unsafe fn set_allows_antialiasing( c: Option<&CGContext>, allows_antialiasing: bool, )

pub unsafe fn set_should_smooth_fonts( c: Option<&CGContext>, should_smooth_fonts: bool, )

pub unsafe fn set_allows_font_smoothing( c: Option<&CGContext>, allows_font_smoothing: bool, )

pub unsafe fn set_should_subpixel_position_fonts( c: Option<&CGContext>, should_subpixel_position_fonts: bool, )

pub unsafe fn set_allows_font_subpixel_positioning( c: Option<&CGContext>, allows_font_subpixel_positioning: bool, )

pub unsafe fn set_should_subpixel_quantize_fonts( c: Option<&CGContext>, should_subpixel_quantize_fonts: bool, )

pub unsafe fn set_allows_font_subpixel_quantization( c: Option<&CGContext>, allows_font_subpixel_quantization: bool, )

pub unsafe fn begin_transparency_layer( c: Option<&CGContext>, auxiliary_info: Option<&CFDictionary>, )

Transparency layer support. *

pub unsafe fn begin_transparency_layer_with_rect( c: Option<&CGContext>, rect: CGRect, aux_info: Option<&CFDictionary>, )

pub unsafe fn end_transparency_layer(c: Option<&CGContext>)

pub unsafe fn user_space_to_device_space_transform( c: Option<&CGContext>, ) -> CGAffineTransform

User space to device space tranformations. *

pub unsafe fn convert_point_to_device_space( c: Option<&CGContext>, point: CGPoint, ) -> CGPoint

pub unsafe fn convert_point_to_user_space( c: Option<&CGContext>, point: CGPoint, ) -> CGPoint

pub unsafe fn convert_size_to_device_space( c: Option<&CGContext>, size: CGSize, ) -> CGSize

pub unsafe fn convert_size_to_user_space( c: Option<&CGContext>, size: CGSize, ) -> CGSize

pub unsafe fn convert_rect_to_device_space( c: Option<&CGContext>, rect: CGRect, ) -> CGRect

pub unsafe fn convert_rect_to_user_space( c: Option<&CGContext>, rect: CGRect, ) -> CGRect

pub unsafe fn select_font( c: Option<&CGContext>, name: *const c_char, size: CGFloat, text_encoding: CGTextEncoding, )

👎Deprecated: No longer supported

pub unsafe fn show_text( c: Option<&CGContext>, string: *const c_char, length: usize, )

👎Deprecated: No longer supported

pub unsafe fn show_text_at_point( c: Option<&CGContext>, x: CGFloat, y: CGFloat, string: *const c_char, length: usize, )

👎Deprecated: No longer supported

pub unsafe fn show_glyphs( c: Option<&CGContext>, g: *const CGGlyph, count: usize, )

👎Deprecated: No longer supported

Available on crate feature CGFont only.

pub unsafe fn show_glyphs_at_point( c: Option<&CGContext>, x: CGFloat, y: CGFloat, glyphs: *const CGGlyph, count: usize, )

👎Deprecated: No longer supported

Available on crate feature CGFont only.

pub unsafe fn show_glyphs_with_advances( c: Option<&CGContext>, glyphs: *const CGGlyph, advances: *const CGSize, count: usize, )

👎Deprecated: No longer supported

Available on crate feature CGFont only.

pub unsafe fn draw_pdf_document( c: Option<&CGContext>, rect: CGRect, document: Option<&CGPDFDocument>, page: c_int, )

👎Deprecated: No longer supported

Available on crate feature CGPDFDocument only.

impl CGContext

pub unsafe fn draw_layer_in_rect( context: Option<&CGContext>, rect: CGRect, layer: Option<&CGLayer>, )

Available on crate feature CGLayer only.

pub unsafe fn draw_layer_at_point( context: Option<&CGContext>, point: CGPoint, layer: Option<&CGLayer>, )

Available on crate feature CGLayer only.

Methods from Deref<Target = CFType>

pub fn downcast_ref<T>(&self) -> Option<&T>

where T: ConcreteType,

Attempt to downcast the type to that of type T.

This is the reference-variant. Use CFRetained::downcast if you want to convert a retained type. See also ConcreteType for more details on which types support being converted to.

pub fn retain_count(&self) -> usize

Get the reference count of the object.

This function may be useful for debugging. You normally do not use this function otherwise.

Beware that some things (like CFNumbers, small CFStrings etc.) may not have a normal retain count for optimization purposes, and can return usize::MAX in that case.

Trait Implementations

impl AsRef<AnyObject> for CGContext

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<CFType> for CGContext

fn as_ref(&self) -> &CFType

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<CGContext> for CGContext

fn as_ref(&self) -> &Self

Converts this type into a shared reference of the (usually inferred) input type.

impl Borrow<AnyObject> for CGContext

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<CFType> for CGContext

fn borrow(&self) -> &CFType

Immutably borrows from an owned value.

impl ConcreteType for CGContext

fn type_id() -> CFTypeID

Get the unique CFTypeID identifier for the type.

impl Debug for CGContext

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

Formats the value using the given formatter.

impl Deref for CGContext

type Target = CFType

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl Hash for CGContext

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Message for CGContext

fn retain(&self) -> Retained<Self>

where Self: Sized,

Increment the reference count of the receiver.

impl PartialEq for CGContext

fn eq(&self, other: &Self) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl RefEncode for CGContext

const ENCODING_REF: Encoding

The Objective-C type-encoding for a reference of this type.

impl Type for CGContext

fn retain(&self) -> CFRetained<Self>

where Self: Sized,

Increment the reference count of the receiver.

fn as_concrete_TypeRef(&self) -> &Self

👎Deprecated: this is redundant

Helper for easier transition from the core-foundation crate.

unsafe fn wrap_under_get_rule(ptr: *const Self) -> CFRetained<Self>

where Self: Sized,

👎Deprecated: use CFRetained::retain

Helper for easier transition from the core-foundation crate.

fn as_CFTypeRef(&self) -> &CFType

where Self: AsRef<CFType>,

👎Deprecated: this is redundant (CF types deref to CFType)

Helper for easier transition from the core-foundation crate.

unsafe fn wrap_under_create_rule(ptr: *const Self) -> CFRetained<Self>

where Self: Sized,

👎Deprecated: use CFRetained::from_raw

Helper for easier transition from the core-foundation crate.

impl Eq for CGContext