Struct ExtGState 

pub struct ExtGState {

    pub line_width: Option<f64>,
    pub line_cap: Option<LineCap>,
    pub line_join: Option<LineJoin>,
    pub miter_limit: Option<f64>,
    pub dash_pattern: Option<LineDashPattern>,
    pub rendering_intent: Option<RenderingIntent>,
    pub overprint_stroke: Option<bool>,
    pub overprint_fill: Option<bool>,
    pub overprint_mode: Option<u8>,
    pub font: Option<ExtGStateFont>,
    pub black_generation: Option<TransferFunction>,
    pub black_generation_2: Option<TransferFunction>,
    pub undercolor_removal: Option<TransferFunction>,
    pub undercolor_removal_2: Option<TransferFunction>,
    pub transfer_function: Option<TransferFunction>,
    pub transfer_function_2: Option<TransferFunction>,
    pub halftone: Option<Halftone>,
    pub flatness: Option<f64>,
    pub smoothness: Option<f64>,
    pub stroke_adjustment: Option<bool>,
    pub blend_mode: Option<BlendMode>,
    pub soft_mask: Option<SoftMask>,
    pub alpha_stroke: Option<f64>,
    pub alpha_fill: Option<f64>,
    pub alpha_is_shape: Option<bool>,
    pub text_knockout: Option<bool>,
    pub use_black_point_compensation: Option<bool>,
}

Extended Graphics State Dictionary according to ISO 32000-1 Section 8.4

Fields

line_width: Option<f64>

Line width (LW)

line_cap: Option<LineCap>

Line cap style (LC)

line_join: Option<LineJoin>

Line join style (LJ)

miter_limit: Option<f64>

Miter limit (ML)

dash_pattern: Option<LineDashPattern>

Line dash pattern (D)

rendering_intent: Option<RenderingIntent>

Rendering intent (RI)

overprint_stroke: Option<bool>

Overprint for stroking operations (OP)

overprint_fill: Option<bool>

Overprint for non-stroking operations (op)

overprint_mode: Option<u8>

Overprint mode (OPM)

font: Option<ExtGStateFont>

Font and size (Font)

black_generation: Option<TransferFunction>

Black generation function (BG)

black_generation_2: Option<TransferFunction>

Black generation function alternative (BG2)

undercolor_removal: Option<TransferFunction>

Undercolor removal function (UCR)

undercolor_removal_2: Option<TransferFunction>

Undercolor removal function alternative (UCR2)

transfer_function: Option<TransferFunction>

Transfer function (TR)

transfer_function_2: Option<TransferFunction>

Transfer function alternative (TR2)

halftone: Option<Halftone>

Halftone dictionary (HT)

flatness: Option<f64>

Flatness tolerance (FL)

smoothness: Option<f64>

Smoothness tolerance (SM)

stroke_adjustment: Option<bool>

Automatic stroke adjustment (SA)

blend_mode: Option<BlendMode>

Blend mode (BM)

soft_mask: Option<SoftMask>

Soft mask (SMask)

alpha_stroke: Option<f64>

Alpha constant for stroking (CA)

alpha_fill: Option<f64>

Alpha constant for non-stroking (ca)

alpha_is_shape: Option<bool>

Alpha source flag (AIS)

text_knockout: Option<bool>

Text knockout flag (TK)

use_black_point_compensation: Option<bool>

Black point compensation (UseBlackPtComp)

Implementations

impl ExtGState

pub fn new() -> Self

Create a new empty ExtGState dictionary

pub fn with_line_width(self, width: f64) -> Self

Set line width

pub fn with_line_cap(self, cap: LineCap) -> Self

Set line cap style

pub fn with_line_join(self, join: LineJoin) -> Self

Set line join style

pub fn with_miter_limit(self, limit: f64) -> Self

Set miter limit

pub fn with_dash_pattern(self, pattern: LineDashPattern) -> Self

Set line dash pattern

pub fn with_rendering_intent(self, intent: RenderingIntent) -> Self

Set rendering intent

pub fn with_overprint_stroke(self, overprint: bool) -> Self

Set overprint for stroking operations

pub fn with_overprint_fill(self, overprint: bool) -> Self

Set overprint for non-stroking operations

pub fn with_overprint_mode(self, mode: u8) -> Self

Set overprint mode

pub fn with_font(self, font: Font, size: f64) -> Self

Set font and size

pub fn with_flatness(self, flatness: f64) -> Self

Set flatness tolerance

pub fn with_smoothness(self, smoothness: f64) -> Self

Set smoothness tolerance

pub fn with_stroke_adjustment(self, adjustment: bool) -> Self

Set automatic stroke adjustment

pub fn with_blend_mode(self, mode: BlendMode) -> Self

Set blend mode

pub fn with_alpha_stroke(self, alpha: f64) -> Self

Set alpha constant for stroking operations

pub fn with_alpha_fill(self, alpha: f64) -> Self

Set alpha constant for non-stroking operations

pub fn with_alpha(self, alpha: f64) -> Self

Set alpha constant for both stroking and non-stroking operations

pub fn with_alpha_is_shape(self, is_shape: bool) -> Self

Set alpha source flag

pub fn with_text_knockout(self, knockout: bool) -> Self

Set text knockout flag

pub fn set_soft_mask(&mut self, mask: SoftMask)

Set soft mask for transparency

pub fn set_soft_mask_name(&mut self, name: String)

Set soft mask with a named XObject

pub fn set_soft_mask_none(&mut self)

Remove soft mask (set to None)

pub fn with_black_point_compensation(self, use_compensation: bool) -> Self

Set black point compensation (PDF 2.0)

pub fn with_transfer_function(self, func: TransferFunction) -> Self

Set transfer function for output device gamma correction

pub fn with_gamma_correction(self, gamma: f64) -> Self

Set gamma correction transfer function

pub fn with_linear_transfer(self, slope: f64, intercept: f64) -> Self

Set linear transfer function with slope and intercept

pub fn with_transfer_function_2(self, func: TransferFunction) -> Self

Set alternative transfer function (TR2)

pub fn with_black_generation(self, func: TransferFunction) -> Self

Set black generation function

pub fn with_undercolor_removal(self, func: TransferFunction) -> Self

Set undercolor removal function

pub fn uses_transparency(&self) -> bool

Check if any transparency parameters are set

pub fn to_pdf_dictionary(&self) -> Result<String>

Generate PDF dictionary representation

pub fn is_empty(&self) -> bool

Check if the ExtGState is empty (no parameters set)

pub fn to_dict(&self) -> Dictionary

Convert to Dictionary object for PDF writer

Trait Implementations

impl Clone for ExtGState

fn clone(&self) -> ExtGState

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ExtGState

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

Formats the value using the given formatter.

impl Default for ExtGState

fn default() -> Self

Returns the “default value” for a type.