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7a04a95c8a
...with a struct defined in LibWeb. This is a step towards uncoupling LibWeb from LibGfx, so we can try third-party libraries for painting.
71 lines
2.6 KiB
C++
71 lines
2.6 KiB
C++
/*
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* Copyright (c) 2024, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibWeb/Painting/PaintStyle.h>
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namespace Web::Painting {
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void SVGGradientPaintStyle::set_gradient_transform(Gfx::AffineTransform transform)
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{
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// Note: The scaling is removed so enough points on the gradient line are generated.
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// Otherwise, if you scale a tiny path the gradient looks pixelated.
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m_scale = 1.0f;
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if (auto inverse = transform.inverse(); inverse.has_value()) {
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auto transform_scale = transform.scale();
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m_scale = max(transform_scale.x(), transform_scale.y());
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m_inverse_transform = Gfx::AffineTransform {}.scale(m_scale, m_scale).multiply(*inverse);
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} else {
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m_inverse_transform = OptionalNone {};
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}
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}
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NonnullRefPtr<Gfx::SVGGradientPaintStyle> SVGLinearGradientPaintStyle::create_gfx_paint_style() const
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{
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auto gfx_paint_style = adopt_ref(*new Gfx::SVGLinearGradientPaintStyle(m_start_point, m_end_point));
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Vector<Gfx::ColorStop> color_stops;
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for (auto const& color_stop : m_color_stops)
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color_stops.append({ color_stop.color, color_stop.position, color_stop.transition_hint });
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gfx_paint_style->set_color_stops(move(color_stops));
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if (m_repeat_length.has_value())
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gfx_paint_style->set_repeat_length(*m_repeat_length);
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if (m_inverse_transform.has_value())
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gfx_paint_style->set_inverse_transform(*m_inverse_transform);
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gfx_paint_style->set_scale(m_scale);
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auto spread_method = static_cast<Gfx::SVGGradientPaintStyle::SpreadMethod>(to_underlying(m_spread_method));
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gfx_paint_style->set_spread_method(spread_method);
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return gfx_paint_style;
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}
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NonnullRefPtr<Gfx::SVGGradientPaintStyle> SVGRadialGradientPaintStyle::create_gfx_paint_style() const
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{
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auto gfx_paint_style = adopt_ref(*new Gfx::SVGRadialGradientPaintStyle(m_start_center, m_start_radius, m_end_center, m_end_radius));
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Vector<Gfx::ColorStop> color_stops;
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for (auto const& color_stop : m_color_stops)
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color_stops.append({ color_stop.color, color_stop.position, color_stop.transition_hint });
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gfx_paint_style->set_color_stops(move(color_stops));
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if (m_repeat_length.has_value())
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gfx_paint_style->set_repeat_length(*m_repeat_length);
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if (m_inverse_transform.has_value())
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gfx_paint_style->set_inverse_transform(*m_inverse_transform);
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gfx_paint_style->set_scale(m_scale);
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auto spread_method = static_cast<Gfx::SVGGradientPaintStyle::SpreadMethod>(to_underlying(m_spread_method));
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gfx_paint_style->set_spread_method(spread_method);
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return gfx_paint_style;
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}
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}
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