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LibWeb: Add DOMMatrix string constructor and set matrix value

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Bastiaan van der Plaat 2024-01-06 18:05:21 +01:00 • committed by Andreas Kling
parent 903d3c92c8
commit be7538961b
15 changed files with 336 additions and 120 deletions
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91
Userland/Libraries/LibWeb/CSS/Transformation.cpp
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@ -6,7 +6,6 @@
*/
#include "Transformation.h"
#include <LibWeb/Layout/Node.h>
#include <LibWeb/Painting/PaintableBox.h>
namespace Web::CSS {
@ -17,62 +16,74 @@ Transformation::Transformation(TransformFunction function, Vector<TransformValue
{
}
Gfx::FloatMatrix4x4 Transformation::to_matrix(Painting::PaintableBox const& paintable_box) const
ErrorOr<Gfx::FloatMatrix4x4> Transformation::to_matrix(Optional<Painting::PaintableBox const&> paintable_box) const
{
auto count = m_values.size();
auto value = [&](size_t index, CSSPixels const& reference_length = 0) -> float {
auto value = [&](size_t index, CSSPixels const& reference_length = 0) -> ErrorOr<float> {
return m_values[index].visit(
[&](CSS::LengthPercentage const& value) -> double {
return value.resolved(paintable_box.layout_node(), reference_length).to_px(paintable_box.layout_node()).to_float();
[&](CSS::LengthPercentage const& value) -> ErrorOr<float> {
if (paintable_box.has_value())
return value.resolved(paintable_box->layout_node(), reference_length).to_px(paintable_box->layout_node()).to_float();
if (value.is_length())
return value.length().absolute_length_to_px().to_float();
return Error::from_string_literal("Transform contains non absolute units");
},
[&](CSS::AngleOrCalculated const& value) {
return AK::to_radians(value.resolved(paintable_box.layout_node()).to_degrees());
[&](CSS::AngleOrCalculated const& value) -> ErrorOr<float> {
if (paintable_box.has_value())
return value.resolved(paintable_box->layout_node()).to_radians();
if (!value.is_calculated())
return value.value().to_radians();
return Error::from_string_literal("Transform contains non absolute units");
},
[](double value) {
[](double value) -> ErrorOr<float> {
return value;
});
};
auto reference_box = paintable_box.absolute_rect();
auto width = reference_box.width();
auto height = reference_box.height();
CSSPixels width = 1;
CSSPixels height = 1;
if (paintable_box.has_value()) {
auto reference_box = paintable_box->absolute_rect();
width = reference_box.width();
height = reference_box.height();
}
switch (m_function) {
case CSS::TransformFunction::Matrix:
if (count == 6)
return Gfx::FloatMatrix4x4(value(0), value(2), 0, value(4),
value(1), value(3), 0, value(5),
return Gfx::FloatMatrix4x4(TRY(value(0)), TRY(value(2)), 0, TRY(value(4)),
TRY(value(1)), TRY(value(3)), 0, TRY(value(5)),
0, 0, 1, 0,
0, 0, 0, 1);
break;
case CSS::TransformFunction::Matrix3d:
if (count == 16)
return Gfx::FloatMatrix4x4(value(0), value(4), value(8), value(12),
value(1), value(5), value(9), value(13),
value(2), value(6), value(10), value(14),
value(3), value(7), value(11), value(15));
return Gfx::FloatMatrix4x4(TRY(value(0)), TRY(value(4)), TRY(value(8)), TRY(value(12)),
TRY(value(1)), TRY(value(5)), TRY(value(9)), TRY(value(13)),
TRY(value(2)), TRY(value(6)), TRY(value(10)), TRY(value(14)),
TRY(value(3)), TRY(value(7)), TRY(value(11)), TRY(value(15)));
break;
case CSS::TransformFunction::Translate:
if (count == 1)
return Gfx::FloatMatrix4x4(1, 0, 0, value(0, width),
return Gfx::FloatMatrix4x4(1, 0, 0, TRY(value(0, width)),
0, 1, 0, 0,
0, 0, 1, 0,
0, 0, 0, 1);
if (count == 2)
return Gfx::FloatMatrix4x4(1, 0, 0, value(0, width),
0, 1, 0, value(1, height),
return Gfx::FloatMatrix4x4(1, 0, 0, TRY(value(0, width)),
0, 1, 0, TRY(value(1, height)),
0, 0, 1, 0,
0, 0, 0, 1);
break;
case CSS::TransformFunction::Translate3d:
return Gfx::FloatMatrix4x4(1, 0, 0, value(0, width),
0, 1, 0, value(1, height),
0, 0, 1, value(2),
return Gfx::FloatMatrix4x4(1, 0, 0, TRY(value(0, width)),
0, 1, 0, TRY(value(1, height)),
0, 0, 1, TRY(value(2)),
0, 0, 0, 1);
break;
case CSS::TransformFunction::TranslateX:
if (count == 1)
return Gfx::FloatMatrix4x4(1, 0, 0, value(0, width),
return Gfx::FloatMatrix4x4(1, 0, 0, TRY(value(0, width)),
0, 1, 0, 0,
0, 0, 1, 0,
0, 0, 0, 1);
@ -80,7 +91,7 @@ Gfx::FloatMatrix4x4 Transformation::to_matrix(Painting::PaintableBox const& pain
case CSS::TransformFunction::TranslateY:
if (count == 1)
return Gfx::FloatMatrix4x4(1, 0, 0, 0,
0, 1, 0, value(0, height),
0, 1, 0, TRY(value(0, height)),
0, 0, 1, 0,
0, 0, 0, 1);
break;
@ -88,24 +99,24 @@ Gfx::FloatMatrix4x4 Transformation::to_matrix(Painting::PaintableBox const& pain
if (count == 1)
return Gfx::FloatMatrix4x4(1, 0, 0, 0,
0, 1, 0, 0,
0, 0, 1, value(0),
0, 0, 1, TRY(value(0)),
0, 0, 0, 1);
break;
case CSS::TransformFunction::Scale:
if (count == 1)
return Gfx::FloatMatrix4x4(value(0), 0, 0, 0,
0, value(0), 0, 0,
return Gfx::FloatMatrix4x4(TRY(value(0)), 0, 0, 0,
0, TRY(value(0)), 0, 0,
0, 0, 1, 0,
0, 0, 0, 1);
if (count == 2)
return Gfx::FloatMatrix4x4(value(0), 0, 0, 0,
0, value(1), 0, 0,
return Gfx::FloatMatrix4x4(TRY(value(0)), 0, 0, 0,
0, TRY(value(1)), 0, 0,
0, 0, 1, 0,
0, 0, 0, 1);
break;
case CSS::TransformFunction::ScaleX:
if (count == 1)
return Gfx::FloatMatrix4x4(value(0), 0, 0, 0,
return Gfx::FloatMatrix4x4(TRY(value(0)), 0, 0, 0,
0, 1, 0, 0,
0, 0, 1, 0,
0, 0, 0, 1);
@ -113,38 +124,38 @@ Gfx::FloatMatrix4x4 Transformation::to_matrix(Painting::PaintableBox const& pain
case CSS::TransformFunction::ScaleY:
if (count == 1)
return Gfx::FloatMatrix4x4(1, 0, 0, 0,
0, value(0), 0, 0,
0, TRY(value(0)), 0, 0,
0, 0, 1, 0,
0, 0, 0, 1);
break;
case CSS::TransformFunction::RotateX:
if (count == 1)
return Gfx::rotation_matrix({ 1.0f, 0.0f, 0.0f }, value(0));
return Gfx::rotation_matrix({ 1.0f, 0.0f, 0.0f }, TRY(value(0)));
break;
case CSS::TransformFunction::RotateY:
if (count == 1)
return Gfx::rotation_matrix({ 0.0f, 1.0f, 0.0f }, value(0));
return Gfx::rotation_matrix({ 0.0f, 1.0f, 0.0f }, TRY(value(0)));
break;
case CSS::TransformFunction::Rotate:
case CSS::TransformFunction::RotateZ:
if (count == 1)
return Gfx::rotation_matrix({ 0.0f, 0.0f, 1.0f }, value(0));
return Gfx::rotation_matrix({ 0.0f, 0.0f, 1.0f }, TRY(value(0)));
break;
case CSS::TransformFunction::Skew:
if (count == 1)
return Gfx::FloatMatrix4x4(1, tanf(value(0)), 0, 0,
return Gfx::FloatMatrix4x4(1, tanf(TRY(value(0))), 0, 0,
0, 1, 0, 0,
0, 0, 1, 0,
0, 0, 0, 1);
if (count == 2)
return Gfx::FloatMatrix4x4(1, tanf(value(0)), 0, 0,
tanf(value(1)), 1, 0, 0,
return Gfx::FloatMatrix4x4(1, tanf(TRY(value(0))), 0, 0,
tanf(TRY(value(1))), 1, 0, 0,
0, 0, 1, 0,
0, 0, 0, 1);
break;
case CSS::TransformFunction::SkewX:
if (count == 1)
return Gfx::FloatMatrix4x4(1, tanf(value(0)), 0, 0,
return Gfx::FloatMatrix4x4(1, tanf(TRY(value(0))), 0, 0,
0, 1, 0, 0,
0, 0, 1, 0,
0, 0, 0, 1);
@ -152,7 +163,7 @@ Gfx::FloatMatrix4x4 Transformation::to_matrix(Painting::PaintableBox const& pain
case CSS::TransformFunction::SkewY:
if (count == 1)
return Gfx::FloatMatrix4x4(1, 0, 0, 0,
tanf(value(0)), 1, 0, 0,
tanf(TRY(value(0))), 1, 0, 0,
0, 0, 1, 0,
0, 0, 0, 1);
break;