SVGLineElement.cpp 3.8 KB

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  1. /*
  2. * Copyright (c) 2022, Sam Atkins <atkinssj@serenityos.org>
  3. *
  4. * SPDX-License-Identifier: BSD-2-Clause
  5. */
  6. #include <LibWeb/Bindings/Intrinsics.h>
  7. #include <LibWeb/SVG/AttributeNames.h>
  8. #include <LibWeb/SVG/AttributeParser.h>
  9. #include <LibWeb/SVG/SVGLineElement.h>
  10. namespace Web::SVG {
  11. SVGLineElement::SVGLineElement(DOM::Document& document, DOM::QualifiedName qualified_name)
  12. : SVGGeometryElement(document, qualified_name)
  13. {
  14. }
  15. void SVGLineElement::initialize(JS::Realm& realm)
  16. {
  17. Base::initialize(realm);
  18. set_prototype(&Bindings::ensure_web_prototype<Bindings::SVGLineElementPrototype>(realm, "SVGLineElement"));
  19. }
  20. void SVGLineElement::attribute_changed(DeprecatedFlyString const& name, DeprecatedString const& value)
  21. {
  22. SVGGeometryElement::attribute_changed(name, value);
  23. if (name == SVG::AttributeNames::x1) {
  24. m_x1 = AttributeParser::parse_coordinate(value);
  25. m_path.clear();
  26. } else if (name == SVG::AttributeNames::y1) {
  27. m_y1 = AttributeParser::parse_coordinate(value);
  28. m_path.clear();
  29. } else if (name == SVG::AttributeNames::x2) {
  30. m_x2 = AttributeParser::parse_coordinate(value);
  31. m_path.clear();
  32. } else if (name == SVG::AttributeNames::y2) {
  33. m_y2 = AttributeParser::parse_coordinate(value);
  34. m_path.clear();
  35. }
  36. }
  37. Gfx::Path& SVGLineElement::get_path()
  38. {
  39. if (m_path.has_value())
  40. return m_path.value();
  41. Gfx::Path path;
  42. float x1 = m_x1.value_or(0);
  43. float y1 = m_y1.value_or(0);
  44. float x2 = m_x2.value_or(0);
  45. float y2 = m_y2.value_or(0);
  46. // 1. perform an absolute moveto operation to absolute location (x1,y1)
  47. path.move_to({ x1, y1 });
  48. // 2. perform an absolute lineto operation to absolute location (x2,y2)
  49. path.line_to({ x2, y2 });
  50. m_path = move(path);
  51. return m_path.value();
  52. }
  53. // https://www.w3.org/TR/SVG11/shapes.html#LineElementX1Attribute
  54. JS::NonnullGCPtr<SVGAnimatedLength> SVGLineElement::x1() const
  55. {
  56. // FIXME: Populate the unit type when it is parsed (0 here is "unknown").
  57. // FIXME: Create a proper animated value when animations are supported.
  58. auto base_length = SVGLength::create(realm(), 0, m_x1.value_or(0));
  59. auto anim_length = SVGLength::create(realm(), 0, m_x1.value_or(0));
  60. return SVGAnimatedLength::create(realm(), move(base_length), move(anim_length));
  61. }
  62. // https://www.w3.org/TR/SVG11/shapes.html#LineElementY1Attribute
  63. JS::NonnullGCPtr<SVGAnimatedLength> SVGLineElement::y1() const
  64. {
  65. // FIXME: Populate the unit type when it is parsed (0 here is "unknown").
  66. // FIXME: Create a proper animated value when animations are supported.
  67. auto base_length = SVGLength::create(realm(), 0, m_y1.value_or(0));
  68. auto anim_length = SVGLength::create(realm(), 0, m_y1.value_or(0));
  69. return SVGAnimatedLength::create(realm(), move(base_length), move(anim_length));
  70. }
  71. // https://www.w3.org/TR/SVG11/shapes.html#LineElementX2Attribute
  72. JS::NonnullGCPtr<SVGAnimatedLength> SVGLineElement::x2() const
  73. {
  74. // FIXME: Populate the unit type when it is parsed (0 here is "unknown").
  75. // FIXME: Create a proper animated value when animations are supported.
  76. auto base_length = SVGLength::create(realm(), 0, m_x2.value_or(0));
  77. auto anim_length = SVGLength::create(realm(), 0, m_x2.value_or(0));
  78. return SVGAnimatedLength::create(realm(), move(base_length), move(anim_length));
  79. }
  80. // https://www.w3.org/TR/SVG11/shapes.html#LineElementY2Attribute
  81. JS::NonnullGCPtr<SVGAnimatedLength> SVGLineElement::y2() const
  82. {
  83. // FIXME: Populate the unit type when it is parsed (0 here is "unknown").
  84. // FIXME: Create a proper animated value when animations are supported.
  85. auto base_length = SVGLength::create(realm(), 0, m_y2.value_or(0));
  86. auto anim_length = SVGLength::create(realm(), 0, m_y2.value_or(0));
  87. return SVGAnimatedLength::create(realm(), move(base_length), move(anim_length));
  88. }
  89. }