Grcov report - property

1

//! Definitions for CSS property types.

2

//!

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//! Do not import things directly from this module; use the `properties` module instead,

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//! which re-exports things from here.

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//!

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//! This module defines most of the CSS property types that librsvg supports.  Each

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//! property requires a Rust type that will hold its values, and that type should

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//! implement a few traits, as follows.

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//!

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//! # Requirements for a property type

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//!

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//! You should call the [`make_property`] macro to take care of most of these requirements

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//! automatically:

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//!

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//! * A name for the type.  For example, the `fill` property has a [`Fill`] type defined

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//! in this module.

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//!

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//! * An initial value per the CSS or SVG specs, given through an implementation of the

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//! [`Default`] trait.

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//!

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//! * Whether the property's computed value inherits to child elements, given through an

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//! implementation of the [`Property`] trait and its

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//! [`inherits_automatically`][Property::inherits_automatically] method.

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//!

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//! * A way to derive the CSS *computed value* for the property, given through an

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//! implementation of the [`Property`] trait and its [`compute`][Property::compute] method.

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//!

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//! * The actual underlying type.  For example, the [`make_property`] macro can generate a

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//! field-less enum for properties like the `clip-rule` property, which just has

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//! identifier-based values like `nonzero` and `evenodd`.  For general-purpose types like

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//! [`Length`], the macro can wrap them in a newtype like `struct`

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//! [`StrokeWidth`]`(`[`Length`]`)`.  For custom types, the macro call can be used just to

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//! define the initial/default value and whether the property inherits automatically; you

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//! should provide the other required trait implementations separately.

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//!

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//! * An implementation of the [`Parse`] trait for the underlying type.

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use std::convert::TryInto;

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use std::str::FromStr;

39

40

use cssparser::{Parser, Token};

41

use language_tags::LanguageTag;

42

43

use crate::dasharray::Dasharray;

44

use crate::error::*;

45

use crate::filter::FilterValueList;

46

use crate::font_props::{

47

    Font, FontFamily, FontSize, FontWeight, GlyphOrientationVertical, LetterSpacing, LineHeight,

48

};

49

use crate::iri::Iri;

50

use crate::length::*;

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use crate::paint_server::PaintServer;

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use crate::parse_identifiers;

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use crate::parsers::Parse;

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use crate::properties::ComputedValues;

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use crate::property_macros::Property;

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use crate::rect::Rect;

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use crate::transform::TransformProperty;

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use crate::unit_interval::UnitInterval;

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use crate::{impl_default, impl_property, make_property};

60

61

make_property!(

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    /// `baseline-shift` property.

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///

64

    /// SVG1.1: <https://www.w3.org/TR/SVG11/text.html#BaselineShiftProperty>

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///

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    /// SVG2: <https://www.w3.org/TR/SVG2/text.html#BaselineShiftProperty>

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    BaselineShift,

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    default: Length::<Both>::parse_str("0.0").unwrap(),

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    newtype: Length<Both>,

70

    property_impl: {

71

        impl Property for BaselineShift {

72

1466587

            fn inherits_automatically() -> bool {

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                false

74

1466587

75

76

1467047

            fn compute(&self, v: &ComputedValues) -> Self {

77

1467047

                let font_size = v.font_size().value();

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1467047

                let parent = v.baseline_shift();

79

80

1467047

                match (self.0.unit, parent.0.unit) {

81

                    (LengthUnit::Percent, _) => {

82

446

                        BaselineShift(Length::<Both>::new(self.0.length * font_size.length + parent.0.length, font_size.unit))

83

84

85

1466601

                    (x, y) if x == y || parent.0.length == 0.0 => {

86

1466601

                        BaselineShift(Length::<Both>::new(self.0.length + parent.0.length, self.0.unit))

87

1466601

88

89

                    _ => {

90

                        // FIXME: the limitation here is that the parent's baseline_shift

91

                        // and ours have different units.  We should be able to normalize

92

                        // the lengths and add them even if they have different units, but

93

                        // at the moment that requires access to the draw_ctx, which we

94

                        // don't have here.

95

//

96

                        // So for now we won't add to the parent's baseline_shift.

97

98

                        parent

99

100

101

1467047

102

103

},

104

    parse_impl: {

105

        impl Parse for BaselineShift {

106

            // These values come from Inkscape's SP_CSS_BASELINE_SHIFT_(SUB/SUPER/BASELINE);

107

            // see sp_style_merge_baseline_shift_from_parent()

108

447

            fn parse<'i>(parser: &mut Parser<'i, '_>) -> Result<BaselineShift, crate::error::ParseError<'i>> {

109

1341

                parser.try_parse(|p| Ok(BaselineShift(Length::<Both>::parse(p)?)))

110

892

                    .or_else(|_: ParseError<'_>| {

111

890

                        Ok(parse_identifiers!(

112

445

                            parser,

113

                            "baseline" => BaselineShift(Length::<Both>::new(0.0, LengthUnit::Percent)),

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                            "sub" => BaselineShift(Length::<Both>::new(-0.2, LengthUnit::Percent)),

115

116

                            "super" => BaselineShift(Length::<Both>::new(0.4, LengthUnit::Percent)),

117

)?)

118

445

})

119

447

120

121

122

);

123

124

make_property!(

125

    /// `clip-path` property.

126

///

127

    /// SVG1.1: <https://www.w3.org/TR/SVG11/masking.html#ClipPathProperty>

128

///

129

    /// CSS Masking 1: <https://www.w3.org/TR/css-masking-1/#the-clip-path>

130

    ClipPath,

131

    default: Iri::None,

132

    inherits_automatically: false,

133

    newtype_parse: Iri,

134

);

135

136

make_property!(

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    /// `clip-rule` property.

138

///

139

    /// SVG1.1: <https://www.w3.org/TR/SVG11/masking.html#ClipRuleProperty>

140

///

141

    /// CSS Masking 1: <https://www.w3.org/TR/css-masking-1/#the-clip-rule>

142

    ClipRule,

143

    default: NonZero,

144

    inherits_automatically: true,

145

146

    identifiers:

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    "nonzero" => NonZero,

148

    "evenodd" => EvenOdd,

149

);

150

151

make_property!(

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    /// `color` property, the fallback for `currentColor` values.

153

///

154

    /// SVG1.1: <https://www.w3.org/TR/SVG11/color.html#ColorProperty>

155

///

156

    /// SVG2: <https://www.w3.org/TR/SVG2/painting.html#ColorProperty>

157

///

158

    /// The SVG spec allows the user agent to choose its own initial value for the "color"

159

    /// property.  Here we start with opaque black for the initial value.  Clients can

160

    /// override this by specifing a custom CSS stylesheet.

161

///

162

    /// Most of the time the `color` property is used to call

163

    /// [`crate::paint_server::resolve_color`].

164

    Color,

165

    default: cssparser::Color::Rgba(cssparser::RGBA::new(Some(0), Some(0), Some(0), Some(1.0))),

166

    inherits_automatically: true,

167

    newtype_parse: cssparser::Color,

168

);

169

170

make_property!(

171

    /// `color-interpolation-filters` property.

172

///

173

    /// SVG1.1: <https://www.w3.org/TR/SVG11/painting.html#ColorInterpolationFiltersProperty>

174

///

175

    /// Filter Effects 1: <https://www.w3.org/TR/filter-effects/#propdef-color-interpolation-filters>

176

    ColorInterpolationFilters,

177

    default: LinearRgb,

178

    inherits_automatically: true,

179

180

    identifiers:

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    "auto" => Auto,

182

    "linearRGB" => LinearRgb,

183

    "sRGB" => Srgb,

184

);

185

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make_property!(

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    /// `cx` property.

188

///

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    /// SVG2: <https://www.w3.org/TR/SVG2/geometry.html#CX>

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///

191

    /// Note that in SVG1.1, this was an attribute, not a property.

192

CX,

193

    default: Length::<Horizontal>::parse_str("0").unwrap(),

194

    inherits_automatically: false,

195

    newtype_parse: Length<Horizontal>,

196

);

197

198

make_property!(

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    /// `cy` attribute.

200

///

201

    /// SVG2: <https://www.w3.org/TR/SVG2/geometry.html#CY>

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///

203

    /// Note that in SVG1.1, this was an attribute, not a property.

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CY,

205

    default: Length::<Vertical>::parse_str("0").unwrap(),

206

    inherits_automatically: false,

207

    newtype_parse: Length<Vertical>,

208

);

209

210

make_property!(

211

    /// `direction` property.

212

///

213

    /// SVG1.1: <https://www.w3.org/TR/SVG11/text.html#DirectionProperty>

214

///

215

    /// SVG2: <https://www.w3.org/TR/SVG2/text.html#DirectionProperty>

216

    Direction,

217

    default: Ltr,

218

    inherits_automatically: true,

219

220

    identifiers:

221

    "ltr" => Ltr,

222

    "rtl" => Rtl,

223

);

224

225

make_property!(

226

    /// `display` property.

227

///

228

    /// SVG1.1: <https://www.w3.org/TR/CSS2/visuren.html#display-prop>

229

///

230

    /// SVG2: <https://www.w3.org/TR/SVG2/render.html#VisibilityControl>

231

    Display,

232

    default: Inline,

233

    inherits_automatically: false,

234

235

    identifiers:

236

    "inline" => Inline,

237

    "block" => Block,

238

    "list-item" => ListItem,

239

    "run-in" => RunIn,

240

    "compact" => Compact,

241

    "marker" => Marker,

242

    "table" => Table,

243

    "inline-table" => InlineTable,

244

    "table-row-group" => TableRowGroup,

245

    "table-header-group" => TableHeaderGroup,

246

    "table-footer-group" => TableFooterGroup,

247

    "table-row" => TableRow,

248

    "table-column-group" => TableColumnGroup,

249

    "table-column" => TableColumn,

250

    "table-cell" => TableCell,

251

    "table-caption" => TableCaption,

252

    "none" => None,

253

);

254

255

/// `enable-background` property.

256

///

257

/// SVG1.1: <https://www.w3.org/TR/SVG11/filters.html#EnableBackgroundProperty>

258

///

259

/// This is deprecated in SVG2.  We just have a parser for it to avoid setting elements in

260

/// error if they have this property.  Librsvg does not use the value of this property.

261

4428926

#[derive(Debug, Clone, Copy, PartialEq)]

262

pub enum EnableBackground {

263

    Accumulate,

264

2

    New(Option<Rect>),

265

266

267

make_property!(

268

    EnableBackground,

269

    default: EnableBackground::Accumulate,

270

    inherits_automatically: false,

271

272

    parse_impl: {

273

        impl Parse for EnableBackground {

274

1169

            fn parse<'i>(parser: &mut Parser<'i, '_>) -> Result<Self, crate::error::ParseError<'i>> {

275

1169

                let loc = parser.current_source_location();

276

277

1169

                if parser

278

1170

                    .try_parse(|p| p.expect_ident_matching("accumulate"))

279

1169

                    .is_ok()

280

281

938

                    return Ok(EnableBackground::Accumulate);

282

283

284

462

                if parser.try_parse(|p| p.expect_ident_matching("new")).is_ok() {

285

690

                    parser.try_parse(|p| -> Result<_, ParseError<'_>> {

286

230

                        let x = f64::parse(p)?;

287

3

                        let y = f64::parse(p)?;

288

3

                        let w = f64::parse(p)?;

289

3

                        let h = f64::parse(p)?;

290

291

3

                        Ok(EnableBackground::New(Some(Rect::new(x, y, x + w, y + h))))

292

460

                    }).or(Ok(EnableBackground::New(None)))

293

                } else {

294

1

                    Err(loc.new_custom_error(ValueErrorKind::parse_error("invalid syntax for 'enable-background' property")))

295

296

1169

297

298

299

300

);

301

302

#[cfg(test)]

303

#[test]

304

2

fn parses_enable_background() {

305

1

    assert_eq!(

306

1

        EnableBackground::parse_str("accumulate").unwrap(),

307

        EnableBackground::Accumulate

308

);

309

310

1

    assert_eq!(

311

1

        EnableBackground::parse_str("new").unwrap(),

312

        EnableBackground::New(None)

313

);

314

315

1

    assert_eq!(

316

1

        EnableBackground::parse_str("new 1 2 3 4").unwrap(),

317

1

        EnableBackground::New(Some(Rect::new(1.0, 2.0, 4.0, 6.0)))

318

);

319

320

1

    assert!(EnableBackground::parse_str("new foo").is_err());

321

322

1

    assert!(EnableBackground::parse_str("plonk").is_err());

323

2

324

325

make_property!(

326

    /// `fill` property.

327

///

328

    /// SVG1.1: <https://www.w3.org/TR/SVG11/painting.html#FillProperty>

329

///

330

    /// SVG2: <https://www.w3.org/TR/SVG2/painting.html#FillProperty>

331

    Fill,

332

    default: PaintServer::parse_str("#000").unwrap(),

333

    inherits_automatically: true,

334

    newtype_parse: PaintServer,

335

);

336

337

make_property!(

338

    /// `fill-opacity` property.

339

///

340

    /// SVG1.1: <https://www.w3.org/TR/SVG11/painting.html#FillOpacityProperty>

341

///

342

    /// SVG2: <https://www.w3.org/TR/SVG2/painting.html#FillOpacity>

343

    FillOpacity,

344

    default: UnitInterval(1.0),

345

    inherits_automatically: true,

346

    newtype_parse: UnitInterval,

347

);

348

349

make_property!(

350

    /// `fill-rule` property.

351

///

352

    /// SVG1.1: <https://www.w3.org/TR/SVG11/painting.html#FillRuleProperty>

353

///

354

    /// SVG2: <https://www.w3.org/TR/SVG2/painting.html#WindingRule>

355

    FillRule,

356

    default: NonZero,

357

    inherits_automatically: true,

358

359

    identifiers:

360

    "nonzero" => NonZero,

361

    "evenodd" => EvenOdd,

362

);

363

364

/// `filter` property.

365

///

366

/// SVG1.1: <https://www.w3.org/TR/SVG11/filters.html#FilterProperty>

367

///

368

/// Filter Effects 1: <https://www.w3.org/TR/filter-effects/#FilterProperty>

369

///

370

/// Note that in SVG2, the filters got offloaded to the [Filter Effects Module Level

371

/// 1](https://www.w3.org/TR/filter-effects/) specification.

372

6428603

#[derive(Debug, Clone, PartialEq)]

373

pub enum Filter {

374

    None,

375

2005

    List(FilterValueList),

376

377

378

make_property!(

379

    Filter,

380

    default: Filter::None,

381

    inherits_automatically: false,

382

    parse_impl: {

383

        impl Parse for Filter {

384

316

            fn parse<'i>(parser: &mut Parser<'i, '_>) -> Result<Self, crate::error::ParseError<'i>> {

385

386

316

                if parser

387

316

                    .try_parse(|p| p.expect_ident_matching("none"))

388

316

                    .is_ok()

389

390

12

                    return Ok(Filter::None);

391

392

393

304

                Ok(Filter::List(FilterValueList::parse(parser)?))

394

316

395

396

397

);

398

399

make_property!(

400

    /// `flood-color` property, for `feFlood` and `feDropShadow` filter elements.

401

///

402

    /// SVG1.1: <https://www.w3.org/TR/SVG11/filters.html#feFloodElement>

403

///

404

    /// Filter Effects 1: <https://www.w3.org/TR/filter-effects/#FloodColorProperty>

405

    FloodColor,

406

    default: cssparser::Color::Rgba(cssparser::RGBA::new(Some(0), Some(0), Some(0), Some(1.0))),

407

    inherits_automatically: false,

408

    newtype_parse: cssparser::Color,

409

);

410

411

make_property!(

412

    /// `flood-opacity` property, for `feFlood` and `feDropShadow` filter elements.

413

///

414

    /// SVG1.1: <https://www.w3.org/TR/SVG11/filters.html#feFloodElement>

415

///

416

    /// Filter Effects 1: <https://www.w3.org/TR/filter-effects/#FloodOpacityProperty>

417

    FloodOpacity,

418

    default: UnitInterval(1.0),

419

    inherits_automatically: false,

420

    newtype_parse: UnitInterval,

421

);

422

423

make_property!(

424

    // docs are in font_props.rs

425

    Font,

426

    default: Font::Spec(Default::default()),

427

    inherits_automatically: true,

428

);

429

430

make_property!(

431

    // docs are in font_props.rs

432

    FontFamily,

433

    default: FontFamily("Times New Roman".to_string()),

434

    inherits_automatically: true,

435

);

436

437

make_property!(

438

    // docs are in font_props.rs

439

    FontSize,

440

    default: FontSize::Value(Length::<Both>::parse_str("12.0").unwrap()),

441

    property_impl: {

442

        impl Property for FontSize {

443

1465683

            fn inherits_automatically() -> bool {

444

                true

445

1465683

446

447

1467045

            fn compute(&self, v: &ComputedValues) -> Self {

448

1467045

                self.compute(v)

449

1467045

450

451

452

);

453

454

make_property!(

455

    /// `font-stretch` property.

456

///

457

    /// SVG1.1: <https://www.w3.org/TR/SVG11/text.html#FontStretchProperty>

458

///

459

    /// CSS Fonts 3: <https://www.w3.org/TR/css-fonts-3/#font-size-propstret>

460

    FontStretch,

461

    default: Normal,

462

    inherits_automatically: true,

463

464

    identifiers:

465

    "normal" => Normal,

466

    "wider" => Wider,

467

    "narrower" => Narrower,

468

    "ultra-condensed" => UltraCondensed,

469

    "extra-condensed" => ExtraCondensed,

470

    "condensed" => Condensed,

471

    "semi-condensed" => SemiCondensed,

472

    "semi-expanded" => SemiExpanded,

473

    "expanded" => Expanded,

474

    "extra-expanded" => ExtraExpanded,

475

    "ultra-expanded" => UltraExpanded,

476

);

477

478

make_property!(

479

    /// `font-style` property.

480

///

481

    /// SVG1.1: <https://www.w3.org/TR/SVG11/text.html#FontStyleProperty>

482

///

483

    /// CSS Fonts 3: <https://www.w3.org/TR/css-fonts-3/#font-size-propstret>

484

    FontStyle,

485

    default: Normal,

486

    inherits_automatically: true,

487

488

    identifiers:

489

    "normal" => Normal,

490

    "italic" => Italic,

491

    "oblique" => Oblique,

492

);

493

494

make_property!(

495

    /// `font-variant` property.

496

///

497

    /// SVG1.1: <https://www.w3.org/TR/SVG11/text.html#FontVariantProperty>

498

///

499

    /// CSS Fonts 3: <https://www.w3.org/TR/css-fonts-3/#propdef-font-variant>

500

///

501

    /// Note that in CSS3, this is a lot more complex than CSS2.1 / SVG1.1.

502

    FontVariant,

503

    default: Normal,

504

    inherits_automatically: true,

505

506

    identifiers:

507

    "normal" => Normal,

508

    "small-caps" => SmallCaps,

509

);

510

511

make_property!(

512

    // docs are in font_props.rs

513

    FontWeight,

514

    default: FontWeight::Normal,

515

    property_impl: {

516

        impl Property for FontWeight {

517

1466399

            fn inherits_automatically() -> bool {

518

                true

519

1466399

520

521

1467052

            fn compute(&self, v: &ComputedValues) -> Self {

522

1467052

                self.compute(&v.font_weight())

523

1467052

524

525

526

);

527

528

make_property!(

529

    // docs are in font_props.rs

530

//

531

    // Although https://www.w3.org/TR/css-writing-modes-3/#propdef-glyph-orientation-vertical specifies

532

    // "n/a" for both the initial value (default) and inheritance, we'll use Auto here for the default,

533

    // since it translates to TextOrientation::Mixed - which is text-orientation's initial value.

534

    GlyphOrientationVertical,

535

    default: GlyphOrientationVertical::Auto,

536

    inherits_automatically: false,

537

);

538

539

make_property!(

540

    /// `height` property.

541

///

542

    /// SVG2: <https://www.w3.org/TR/SVG2/geometry.html#Sizing>

543

///

544

    /// Note that in SVG1.1, this was an attribute, not a property.

545

    Height,

546

    default: LengthOrAuto::<Vertical>::Auto,

547

    inherits_automatically: false,

548

    newtype_parse: LengthOrAuto<Vertical>,

549

);

550

551

make_property!(

552

    /// `image-rendering` property.

553

///

554

    /// CSS Images Module Level 3: <https://www.w3.org/TR/css-images-3/#the-image-rendering>

555

///

556

    /// Note that this property previously accepted the values optimizeSpeed and optimizeQuality.

557

    /// These are now deprecated; a user agent must accept them as valid values but must treat

558

    /// them as having the same behavior as crisp-edges and smooth respectively.

559

    ImageRendering,

560

    default: Auto,

561

    inherits_automatically: true,

562

563

    identifiers:

564

    "auto" => Auto,

565

    "smooth" => Smooth,

566

    "optimizeQuality" => OptimizeQuality,

567

    "high-quality" => HighQuality,

568

    "crisp-edges" => CrispEdges,

569

    "optimizeSpeed" => OptimizeSpeed,

570

    "pixelated" => Pixelated,

571

);

572

573

make_property!(

574

    /// `isolation` property.

575

///

576

    /// CSS Compositing and Blending 1: <https://www.w3.org/TR/compositing-1/#isolation>

577

    Isolation,

578

    default: Auto,

579

    inherits_automatically: false,

580

581

    identifiers:

582

    "auto" => Auto,

583

    "isolate" => Isolate,

584

);

585

586

make_property!(

587

    // docs are in font_props.rs

588

    LetterSpacing,

589

    default: LetterSpacing::Normal,

590

    property_impl: {

591

        impl Property for LetterSpacing {

592

1466498

            fn inherits_automatically() -> bool {

593

                true

594

1466498

595

596

1467047

            fn compute(&self, _v: &ComputedValues) -> Self {

597

1467047

                self.compute()

598

1467047

599

600

601

);

602

603

make_property!(

604

    // docs are in font_props.rs

605

    LineHeight,

606

    default: LineHeight::Normal,

607

    inherits_automatically: true,

608

);

609

610

make_property!(

611

    /// `lighting-color` property for `feDiffuseLighting` and `feSpecularLighting` filter elements.

612

///

613

    /// SVG1.1: <https://www.w3.org/TR/SVG11/filters.html#LightingColorProperty>

614

///

615

    /// Filter Effects 1: <https://www.w3.org/TR/filter-effects/#LightingColorProperty>

616

    LightingColor,

617

    default: cssparser::Color::Rgba(cssparser::RGBA::new(Some(255), Some(255), Some(255), Some(1.0))),

618

    inherits_automatically: false,

619

    newtype_parse: cssparser::Color,

620

);

621

622

make_property!(

623

    /// `marker` shorthand property.

624

///

625

    /// SVG2: <https://www.w3.org/TR/SVG2/painting.html#MarkerShorthand>

626

///

627

    /// This is a shorthand, which expands to the `marker-start`, `marker-mid`,

628

    /// `marker-end` longhand properties.

629

    Marker,

630

    default: Iri::None,

631

    inherits_automatically: true,

632

    newtype_parse: Iri,

633

);

634

635

make_property!(

636

    /// `marker-end` property.

637

///

638

    /// SVG2: <https://www.w3.org/TR/SVG2/painting.html#VertexMarkerProperties>

639

    MarkerEnd,

640

    default: Iri::None,

641

    inherits_automatically: true,

642

    newtype_parse: Iri,

643

);

644

645

make_property!(

646

    /// `marker-mid` property.

647

///

648

    /// SVG2: <https://www.w3.org/TR/SVG2/painting.html#VertexMarkerProperties>

649

    MarkerMid,

650

    default: Iri::None,

651

    inherits_automatically: true,

652

    newtype_parse: Iri,

653

);

654

655

make_property!(

656

    /// `marker-start` property.

657

///

658

    /// SVG2: <https://www.w3.org/TR/SVG2/painting.html#VertexMarkerProperties>

659

    MarkerStart,

660

    default: Iri::None,

661

    inherits_automatically: true,

662

    newtype_parse: Iri,

663

);

664

665

make_property!(

666

    /// `mask` shorthand property.

667

///

668

    /// SVG1.1: <https://www.w3.org/TR/SVG11/masking.html#MaskProperty>

669

///

670

    /// CSS Masking 1: <https://www.w3.org/TR/css-masking-1/#the-mask>

671

///

672

    /// Note that librsvg implements SVG1.1 semantics, where this is not a shorthand.

673

    Mask,

674

    default: Iri::None,

675

    inherits_automatically: false,

676

    newtype_parse: Iri,

677

);

678

679

make_property!(

680

    /// `mask-type` property.

681

///

682

    /// CSS Masking 1: <https://www.w3.org/TR/css-masking-1/#the-mask-type>

683

    MaskType,

684

    default: Luminance,

685

    inherits_automatically: false,

686

687

    identifiers:

688

    "luminance" => Luminance,

689

    "alpha" => Alpha,

690

);

691

692

make_property!(

693

    /// `mix-blend-mode` property.

694

///

695

    /// Compositing and Blending 1: <https://www.w3.org/TR/compositing/#mix-blend-mode>

696

    MixBlendMode,

697

    default: Normal,

698

    inherits_automatically: false,

699

700

    identifiers:

701

    "normal" => Normal,

702

    "multiply" => Multiply,

703

    "screen" => Screen,

704

    "overlay" => Overlay,

705

    "darken" => Darken,

706

    "lighten" => Lighten,

707

    "color-dodge" => ColorDodge,

708

    "color-burn" => ColorBurn,

709

    "hard-light" => HardLight,

710

    "soft-light" => SoftLight,

711

    "difference" => Difference,

712

    "exclusion" => Exclusion,

713

    "hue" => Hue,

714

    "saturation" => Saturation,

715

    "color" => Color,

716

    "luminosity" => Luminosity,

717

);

718

719

make_property!(

720

    /// `opacity` property.

721

///

722

    /// CSS Color 3: <https://www.w3.org/TR/css-color-3/#opacity>

723

    Opacity,

724

    default: UnitInterval(1.0),

725

    inherits_automatically: false,

726

    newtype_parse: UnitInterval,

727

);

728

729

make_property!(

730

    /// `overflow` shorthand property.

731

///

732

    /// CSS2: <https://www.w3.org/TR/CSS2/visufx.html#overflow>

733

///

734

    /// CSS Overflow 3: <https://www.w3.org/TR/css-overflow-3/#propdef-overflow>

735

///

736

    /// Note that librsvg implements SVG1.1 semantics, where this is not a shorthand.

737

    Overflow,

738

    default: Visible,

739

    inherits_automatically: false,

740

741

    identifiers:

742

    "visible" => Visible,

743

    "hidden" => Hidden,

744

    "scroll" => Scroll,

745

    "auto" => Auto,

746

);

747

748

impl Overflow {

749

1236

    pub fn overflow_allowed(&self) -> bool {

750

1236

        matches!(*self, Overflow::Auto | Overflow::Visible)

751

1236

752

753

754

/// One of the three operations for the `paint-order` property; see [`PaintOrder`].

755

#[repr(u8)]

756

1529

#[derive(Debug, Clone, Copy, Eq, PartialEq)]

757

pub enum PaintTarget {

758

    Fill,

759

    Stroke,

760

    Markers,

761

762

763

make_property!(

764

    /// `paint-order` property.

765

///

766

    /// SVG2: <https://www.w3.org/TR/SVG2/painting.html#PaintOrder>

767

///

768

    /// The `targets` field specifies the order in which graphic elements should be filled/stroked.

769

    /// Instead of hard-coding an order of fill/stroke/markers, use the order specified by the `targets`.

770

    PaintOrder,

771

    inherits_automatically: true,

772

    fields: {

773

        targets: [PaintTarget; 3], default: [PaintTarget::Fill, PaintTarget::Stroke, PaintTarget::Markers],

774

775

776

    parse_impl: {

777

        impl Parse for PaintOrder {

778

639

            fn parse<'i>(parser: &mut Parser<'i, '_>) -> Result<PaintOrder, ParseError<'i>> {

779

639

                let allowed_targets = 3;

780

639

                let mut targets = Vec::with_capacity(allowed_targets);

781

782

934

                if parser.try_parse(|p| p.expect_ident_matching("normal")).is_ok() {

783

123

                    return Ok(PaintOrder::default());

784

785

786

509

                while !parser.is_exhausted() {

787

511

                    let loc = parser.current_source_location();

788

511

                    let token = parser.next()?;

789

790

511

                    let value = match token {

791

511

                        Token::Ident(ref cow) if cow.eq_ignore_ascii_case("fill") && !targets.contains(&PaintTarget::Fill) => PaintTarget::Fill,

792

341

                        Token::Ident(ref cow) if cow.eq_ignore_ascii_case("stroke") && !targets.contains(&PaintTarget::Stroke) => PaintTarget::Stroke,

793

170

                        Token::Ident(ref cow) if cow.eq_ignore_ascii_case("markers") && !targets.contains(&PaintTarget::Markers) => PaintTarget::Markers,

794

2

                        _ => return Err(loc.new_basic_unexpected_token_error(token.clone()).into()),

795

};

796

797

509

                    targets.push(value);

798

};

799

800

                // any values which were not specfied should be painted in default order

801

                // (fill, stroke, markers) following the values which were explicitly specified.

802

680

                for &target in &[PaintTarget::Fill, PaintTarget::Stroke, PaintTarget::Markers] {

803

510

                    if !targets.contains(&target) {

804

5

                        targets.push(target);

805

806

807

170

                Ok(PaintOrder {

808

170

                    targets: targets[..].try_into().expect("Incorrect number of targets in paint-order")

809

})

810

295

811

812

813

);

814

815

#[cfg(test)]

816

#[test]

817

2

fn parses_paint_order() {

818

1

    assert_eq!(

819

1

        PaintOrder::parse_str("normal").unwrap(),

820

        PaintOrder {

821

            targets: [PaintTarget::Fill, PaintTarget::Stroke, PaintTarget::Markers]

822

823

);

824

825

1

    assert_eq!(

826

1

        PaintOrder::parse_str("markers fill").unwrap(),

827

        PaintOrder {

828

            targets: [PaintTarget::Markers, PaintTarget::Fill, PaintTarget::Stroke]

829

830

);

831

832

1

    assert_eq!(

833

1

        PaintOrder::parse_str("stroke").unwrap(),

834

        PaintOrder {

835

            targets: [PaintTarget::Stroke, PaintTarget::Fill, PaintTarget::Markers]

836

837

);

838

839

1

    assert!(PaintOrder::parse_str("stroke stroke").is_err());

840

1

    assert!(PaintOrder::parse_str("markers stroke fill hello").is_err());

841

2

842

843

make_property!(

844

    /// `r` property.

845

///

846

    /// SVG2: <https://www.w3.org/TR/SVG2/geometry.html#R>

847

///

848

    /// Note that in SVG1.1, this was an attribute, not a property.

849

R,

850

    default: ULength::<Both>::parse_str("0").unwrap(),

851

    inherits_automatically: false,

852

    newtype_parse: ULength<Both>,

853

);

854

855

make_property!(

856

    /// `rx` property.

857

///

858

    /// SVG2: <https://www.w3.org/TR/SVG2/geometry.html#RX>

859

///

860

    /// Note that in SVG1.1, this was an attribute, not a property.

861

RX,

862

    default: LengthOrAuto::<Horizontal>::Auto,

863

    inherits_automatically: false,

864

    newtype_parse: LengthOrAuto<Horizontal>,

865

);

866

867

make_property!(

868

    /// `ry` property.

869

///

870

    /// SVG2: <https://www.w3.org/TR/SVG2/geometry.html#RY>

871

///

872

    /// Note that in SVG1.1, this was an attribute, not a property.

873

RY,

874

    default: LengthOrAuto::<Vertical>::Auto,

875

    inherits_automatically: false,

876

    newtype_parse: LengthOrAuto<Vertical>,

877

);

878

879

make_property!(

880

    /// `shape-rendering` property.

881

///

882

    /// SVG2: <https://www.w3.org/TR/SVG2/painting.html#ShapeRendering>

883

    ShapeRendering,

884

    default: Auto,

885

    inherits_automatically: true,

886

887

    identifiers:

888

    "auto" => Auto,

889

    "optimizeSpeed" => OptimizeSpeed,

890

    "geometricPrecision" => GeometricPrecision,

891

    "crispEdges" => CrispEdges,

892

);

893

894

make_property!(

895

    /// `stop-color` property for gradient stops.

896

///

897

    /// SVG2: <https://www.w3.org/TR/SVG2/pservers.html#StopColorProperty>

898

    StopColor,

899

    default: cssparser::Color::Rgba(cssparser::RGBA::new(Some(0), Some(0), Some(0), Some(1.0))),

900

    inherits_automatically: false,

901

    newtype_parse: cssparser::Color,

902

);

903

904

make_property!(

905

    /// `stop-opacity` property for gradient stops.

906

///

907

    /// SVG2: <https://www.w3.org/TR/SVG2/pservers.html#StopOpacityProperty>

908

    StopOpacity,

909

    default: UnitInterval(1.0),

910

    inherits_automatically: false,

911

    newtype_parse: UnitInterval,

912

);

913

914

make_property!(

915

    /// `stroke` property.

916

///

917

    /// SVG2: <https://www.w3.org/TR/SVG2/painting.html#SpecifyingStrokePaint>

918

    Stroke,

919

    default: PaintServer::None,

920

    inherits_automatically: true,

921

    newtype_parse: PaintServer,

922

);

923

924

make_property!(

925

    /// `stroke-dasharray` property.

926

///

927

    /// SVG2: <https://www.w3.org/TR/SVG2/painting.html#StrokeDashing>

928

    StrokeDasharray,

929

    default: Dasharray::default(),

930

    inherits_automatically: true,

931

    newtype_parse: Dasharray,

932

);

933

934

make_property!(

935

    /// `stroke-dashoffset` property.

936

///

937

    /// SVG2: <https://www.w3.org/TR/SVG2/painting.html#StrokeDashingdas>

938

    StrokeDashoffset,

939

    default: Length::<Both>::default(),

940

    inherits_automatically: true,

941

    newtype_parse: Length<Both>,

942

);

943

944

make_property!(

945

    /// `stroke-linecap` property.

946

///

947

    /// SVG2: <https://www.w3.org/TR/SVG2/painting.html#LineCaps>

948

    StrokeLinecap,

949

    default: Butt,

950

    inherits_automatically: true,

951

952

    identifiers:

953

    "butt" => Butt,

954

    "round" => Round,

955

    "square" => Square,

956

);

957

958

make_property!(

959

    /// `stroke-linejoin` property.

960

///

961

    /// SVG2: <https://www.w3.org/TR/SVG2/painting.html#LineJoin>

962

    StrokeLinejoin,

963

    default: Miter,

964

    inherits_automatically: true,

965

966

    identifiers:

967

    "miter" => Miter,

968

    "round" => Round,

969

    "bevel" => Bevel,

970

);

971

972

make_property!(

973

    /// `stroke-miterlimit` property.

974

///

975

    /// SVG2: <https://www.w3.org/TR/SVG2/painting.html#StrokeMiterlimitProperty>

976

    StrokeMiterlimit,

977

    default: 4f64,

978

    inherits_automatically: true,

979

    newtype_parse: f64,

980

);

981

982

make_property!(

983

    /// `stroke-opacity` property.

984

///

985

    /// SVG2: <https://www.w3.org/TR/SVG2/painting.html#StrokeOpacity>

986

    StrokeOpacity,

987

    default: UnitInterval(1.0),

988

    inherits_automatically: true,

989

    newtype_parse: UnitInterval,

990

);

991

992

make_property!(

993

    /// `stroke-width` property.

994

///

995

    /// SVG2: <https://www.w3.org/TR/SVG2/painting.html#StrokeWidth>

996

    StrokeWidth,

997

    default: Length::<Both>::parse_str("1.0").unwrap(),

998

    inherits_automatically: true,

999

    newtype_parse: Length::<Both>,

1000

);

1001

1002

make_property!(

1003

    /// `text-anchor` property.

1004

///

1005

    /// SVG1.1: <https://www.w3.org/TR/SVG11/text.html#TextAnchorProperty>

1006

    TextAnchor,

1007

    default: Start,

1008

    inherits_automatically: true,

1009

1010

    identifiers:

1011

    "start" => Start,

1012

    "middle" => Middle,

1013

    "end" => End,

1014

);

1015

1016

make_property!(

1017

    /// `text-decoration` shorthand property.

1018

///

1019

    /// SVG1.1: <https://www.w3.org/TR/SVG11/text.html#TextDecorationProperty>

1020

///

1021

    /// CSS Text Decoration 3: <https://www.w3.org/TR/css-text-decor-3/#text-decoration-property>

1022

///

1023

    /// Note that librsvg implements SVG1.1 semantics, where this is not a shorthand.

1024

    TextDecoration,

1025

    inherits_automatically: false,

1026

1027

    fields: {

1028

        overline: bool, default: false,

1029

        underline: bool, default: false,

1030

        strike: bool, default: false,

1031

1032

1033

    parse_impl: {

1034

        impl Parse for TextDecoration {

1035

559

            fn parse<'i>(parser: &mut Parser<'i, '_>) -> Result<TextDecoration, ParseError<'i>> {

1036

559

                let mut overline = false;

1037

559

                let mut underline = false;

1038

559

                let mut strike = false;

1039

1040

1118

                if parser.try_parse(|p| p.expect_ident_matching("none")).is_ok() {

1041

551

                    return Ok(TextDecoration::default());

1042

1043

1044

16

                while !parser.is_exhausted() {

1045

9

                    let loc = parser.current_source_location();

1046

9

                    let token = parser.next()?;

1047

1048

9

                    match token {

1049

9

                        Token::Ident(ref cow) if cow.eq_ignore_ascii_case("overline") => overline = true,

1050

7

                        Token::Ident(ref cow) if cow.eq_ignore_ascii_case("underline") => underline = true,

1051

3

                        Token::Ident(ref cow) if cow.eq_ignore_ascii_case("line-through") => strike = true,

1052

1

                        _ => return Err(loc.new_basic_unexpected_token_error(token.clone()).into()),

1053

1054

1055

1056

7

                Ok(TextDecoration {

1057

7

                    overline,

1058

7

                    underline,

1059

7

                    strike,

1060

})

1061

559

1062

1063

1064

);

1065

1066

#[cfg(test)]

1067

#[test]

1068

2

fn parses_text_decoration() {

1069

1

    assert_eq!(

1070

1

        TextDecoration::parse_str("none").unwrap(),

1071

        TextDecoration {

1072

            overline: false,

1073

            underline: false,

1074

            strike: false,

1075

1076

);

1077

1078

1

    assert_eq!(

1079

1

        TextDecoration::parse_str("overline").unwrap(),

1080

        TextDecoration {

1081

            overline: true,

1082

            underline: false,

1083

            strike: false,

1084

1085

);

1086

1087

1

    assert_eq!(

1088

1

        TextDecoration::parse_str("underline").unwrap(),

1089

        TextDecoration {

1090

            overline: false,

1091

            underline: true,

1092

            strike: false,

1093

1094

);

1095

1096

1

    assert_eq!(

1097

1

        TextDecoration::parse_str("line-through").unwrap(),

1098

        TextDecoration {

1099

            overline: false,

1100

            underline: false,

1101

            strike: true,

1102

1103

);

1104

1105

1

    assert_eq!(

1106

1

        TextDecoration::parse_str("underline overline").unwrap(),

1107

        TextDecoration {

1108

            overline: true,

1109

            underline: true,

1110

            strike: false,

1111

1112

);

1113

1114

1

    assert!(TextDecoration::parse_str("airline").is_err())

1115

2

1116

1117

make_property!(

1118

    /// `text-orientation` property.

1119

///

1120

    /// CSS Writing Modes 3: <https://www.w3.org/TR/css-writing-modes-3/#propdef-text-orientation>

1121

    TextOrientation,

1122

    default: Mixed,

1123

    inherits_automatically: true,

1124

1125

    identifiers:

1126

    "mixed" => Mixed,

1127

    "upright" => Upright,

1128

    "sideways" => Sideways,

1129

);

1130

1131

impl From<GlyphOrientationVertical> for TextOrientation {

1132

    /// Converts the `glyph-orientation-vertical` shorthand to a `text-orientation` longhand.

1133

///

1134

    /// See <https://www.w3.org/TR/css-writing-modes-3/#propdef-glyph-orientation-vertical> for the conversion table.

1135

    fn from(o: GlyphOrientationVertical) -> TextOrientation {

1136

        match o {

1137

            GlyphOrientationVertical::Auto => TextOrientation::Mixed,

1138

            GlyphOrientationVertical::Angle0 => TextOrientation::Upright,

1139

            GlyphOrientationVertical::Angle90 => TextOrientation::Sideways,

1140

1141

1142

1143

1144

make_property!(

1145

    /// `text-rendering` property.

1146

///

1147

    /// SVG1.1: <https://www.w3.org/TR/SVG11/painting.html#TextRenderingProperty>

1148

    TextRendering,

1149

    default: Auto,

1150

    inherits_automatically: true,

1151

1152

    identifiers:

1153

    "auto" => Auto,

1154

    "optimizeSpeed" => OptimizeSpeed,

1155

    "optimizeLegibility" => OptimizeLegibility,

1156

    "geometricPrecision" => GeometricPrecision,

1157

);

1158

1159

make_property!(

1160

    /// `transform` property.

1161

///

1162

    /// CSS Transforms 1: <https://www.w3.org/TR/css-transforms-1/#transform-property>

1163

    Transform,

1164

    default: TransformProperty::None,

1165

    inherits_automatically: false,

1166

    newtype_parse: TransformProperty,

1167

);

1168

1169

make_property!(

1170

    /// `unicode-bidi` property.

1171

///

1172

    /// CSS Writing Modes 3: <https://www.w3.org/TR/css-writing-modes-3/#unicode-bidi>

1173

    UnicodeBidi,

1174

    default: Normal,

1175

    inherits_automatically: false,

1176

1177

    identifiers:

1178

    "normal" => Normal,

1179

    "embed" => Embed,

1180

    "isolate" => Isolate,

1181

    "bidi-override" => BidiOverride,

1182

    "isolate-override" => IsolateOverride,

1183

    "plaintext" => Plaintext,

1184

);

1185

1186

make_property!(

1187

    /// `vector-effect` property.

1188

///

1189

    /// SVG2: <https://svgwg.org/svg2-draft/coords.html#VectorEffectProperty>

1190

    VectorEffect,

1191

    default: None,

1192

    inherits_automatically: false,

1193

1194

    identifiers:

1195

    "none" => None,

1196

    "non-scaling-stroke" => NonScalingStroke,

1197

    // non-scaling-size, non-rotation, fixed-position not implemented

1198

);

1199

1200

make_property!(

1201

    /// `visibility` property.

1202

///

1203

    /// CSS2: <https://www.w3.org/TR/CSS2/visufx.html#visibility>

1204

    Visibility,

1205

    default: Visible,

1206

    inherits_automatically: true,

1207

1208

    identifiers:

1209

    "visible" => Visible,

1210

    "hidden" => Hidden,

1211

    "collapse" => Collapse,

1212

);

1213

1214

make_property!(

1215

    /// `width` property.

1216

///

1217

    /// SVG2: <https://www.w3.org/TR/SVG2/geometry.html#Sizing>

1218

///

1219

    /// Note that in SVG1.1, this was an attribute, not a property.

1220

    Width,

1221

    default: LengthOrAuto::<Horizontal>::Auto,

1222

    inherits_automatically: false,

1223

    newtype_parse: LengthOrAuto<Horizontal>,

1224

);

1225

1226

make_property!(

1227

    /// `writing-mode` property.

1228

///

1229

    /// SVG1.1: <https://www.w3.org/TR/SVG11/text.html#WritingModeProperty>

1230

///

1231

    /// SVG2: <https://svgwg.org/svg2-draft/text.html#WritingModeProperty>

1232

///

1233

    /// CSS Writing Modes 3: <https://www.w3.org/TR/css-writing-modes-3/#block-flow>

1234

///

1235

    /// See the comments in the SVG2 spec for how the SVG1.1 values must be translated

1236

    /// into CSS Writing Modes 3 values.

1237

    WritingMode,

1238

    default: HorizontalTb,

1239

    identifiers: {

1240

        "horizontal-tb" => HorizontalTb,

1241

        "vertical-rl" => VerticalRl,

1242

        "vertical-lr" => VerticalLr,

1243

        "lr" => Lr,

1244

        "lr-tb" => LrTb,

1245

        "rl" => Rl,

1246

        "rl-tb" => RlTb,

1247

        "tb" => Tb,

1248

        "tb-rl" => TbRl,

1249

},

1250

    property_impl: {

1251

        impl Property for WritingMode {

1252

1466480

            fn inherits_automatically() -> bool {

1253

                true

1254

1466480

1255

1256

1467035

            fn compute(&self, _v: &ComputedValues) -> Self {

1257

                use WritingMode::*;

1258

1259

                // Translate SVG1.1 compatibility values to SVG2 / CSS Writing Modes 3.

1260

1467035

                match *self {

1261

555

                    Lr | LrTb | Rl | RlTb => HorizontalTb,

1262

                    Tb | TbRl => VerticalRl,

1263

1466480

                    _ => *self,

1264

1265

1467035

1266

1267

1268

);

1269

1270

impl WritingMode {

1271

3044

    pub fn is_horizontal(self) -> bool {

1272

        use WritingMode::*;

1273

1274

3044

        matches!(self, HorizontalTb | Lr | LrTb | Rl | RlTb)

1275

3044

1276

1277

1278

make_property!(

1279

    /// `x` property.

1280

///

1281

    /// SVG2: <https://www.w3.org/TR/SVG2/geometry.html#X>

1282

///

1283

    /// Note that in SVG1.1, this was an attribute, not a property.

1284

X,

1285

    default: Length::<Horizontal>::parse_str("0").unwrap(),

1286

    inherits_automatically: false,

1287

    newtype_parse: Length<Horizontal>,

1288

);

1289

1290

make_property!(

1291

    /// `xml:lang` attribute.

1292

///

1293

    /// XML1.0: <https://www.w3.org/TR/xml/#sec-lang-tag>

1294

///

1295

    /// Similar to `XmlSpace`, this is a hack in librsvg: the `xml:lang` attribute is

1296

    /// supposed to apply to an element and all its children.  This more or less matches

1297

    /// CSS property inheritance, so librsvg reuses the machinery for property inheritance

1298

    /// to propagate down the value of the `xml:lang` attribute to an element's children.

1299

    XmlLang,

1300

    default: None,

1301

    inherits_automatically: true,

1302

    newtype: Option<Box<LanguageTag>>,

1303

    parse_impl: {

1304

        impl Parse for XmlLang {

1305

13

            fn parse<'i>(

1306

                parser: &mut Parser<'i, '_>,

1307

            ) -> Result<XmlLang, ParseError<'i>> {

1308

13

                let language_tag = parser.expect_ident()?;

1309

12

                let language_tag = LanguageTag::from_str(language_tag).map_err(|_| {

1310

                    parser.new_custom_error(ValueErrorKind::parse_error("invalid syntax for 'xml:lang' parameter"))

1311

                })?;

1312

12

                Ok(XmlLang(Some(Box::new(language_tag))))

1313

13

1314

1315

},

1316

);

1317

1318

#[cfg(test)]

1319

#[test]

1320

2

fn parses_xml_lang() {

1321

2

    assert_eq!(

1322

1

        XmlLang::parse_str("es-MX").unwrap(),

1323

1

        XmlLang(Some(Box::new(LanguageTag::from_str("es-MX").unwrap())))

1324

);

1325

1326

1

    assert!(XmlLang::parse_str("").is_err());

1327

2

1328

1329

make_property!(

1330

    /// `xml:space` attribute.

1331

///

1332

    /// XML1.0: <https://www.w3.org/TR/xml/#sec-white-space>

1333

///

1334

    /// Similar to `XmlLang`, this is a hack in librsvg.  The `xml:space` attribute is

1335

    /// supposed to be applied to all the children of the element in which it appears, so

1336

    /// it works more or less the same as CSS property inheritance.  Librsvg reuses the

1337

    /// machinery for CSS property inheritance to propagate down the value of `xml:space`

1338

    /// to an element's children.

1339

    XmlSpace,

1340

    default: Default,

1341

    inherits_automatically: true,

1342

1343

    identifiers:

1344

    "default" => Default,

1345

    "preserve" => Preserve,

1346

);

1347

1348

make_property!(

1349

    /// `y` property.

1350

///

1351

    /// SVG2: <https://www.w3.org/TR/SVG2/geometry.html#Y>

1352

///

1353

    /// Note that in SVG1.1, this was an attribute, not a property.

1354

Y,

1355

    default: Length::<Vertical>::parse_str("0").unwrap(),

1356

    inherits_automatically: false,

1357

    newtype_parse: Length<Vertical>,

1358

);