mirror of
https://github.com/LadybirdBrowser/ladybird.git
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5e1499d104
This commit un-deprecates DeprecatedString, and repurposes it as a byte
string.
As the null state has already been removed, there are no other
particularly hairy blockers in repurposing this type as a byte string
(what it _really_ is).
This commit is auto-generated:
$ xs=$(ack -l \bDeprecatedString\b\|deprecated_string AK Userland \
Meta Ports Ladybird Tests Kernel)
$ perl -pie 's/\bDeprecatedString\b/ByteString/g;
s/deprecated_string/byte_string/g' $xs
$ clang-format --style=file -i \
$(git diff --name-only | grep \.cpp\|\.h)
$ gn format $(git ls-files '*.gn' '*.gni')
168 lines
6.3 KiB
C++
168 lines
6.3 KiB
C++
/*
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* Copyright (c) 2020-2022, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2021-2022, Linus Groh <linusg@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/String.h>
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#include <AK/Variant.h>
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#include <LibGfx/AffineTransform.h>
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#include <LibGfx/AntiAliasingPainter.h>
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#include <LibGfx/Color.h>
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#include <LibGfx/Forward.h>
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#include <LibGfx/Painter.h>
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#include <LibGfx/Path.h>
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#include <LibWeb/Bindings/PlatformObject.h>
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#include <LibWeb/HTML/Canvas/CanvasCompositing.h>
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#include <LibWeb/HTML/Canvas/CanvasDrawImage.h>
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#include <LibWeb/HTML/Canvas/CanvasDrawPath.h>
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#include <LibWeb/HTML/Canvas/CanvasFillStrokeStyles.h>
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#include <LibWeb/HTML/Canvas/CanvasImageData.h>
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#include <LibWeb/HTML/Canvas/CanvasImageSmoothing.h>
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#include <LibWeb/HTML/Canvas/CanvasPath.h>
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#include <LibWeb/HTML/Canvas/CanvasPathClipper.h>
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#include <LibWeb/HTML/Canvas/CanvasPathDrawingStyles.h>
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#include <LibWeb/HTML/Canvas/CanvasRect.h>
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#include <LibWeb/HTML/Canvas/CanvasState.h>
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#include <LibWeb/HTML/Canvas/CanvasText.h>
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#include <LibWeb/HTML/Canvas/CanvasTextDrawingStyles.h>
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#include <LibWeb/HTML/Canvas/CanvasTransform.h>
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#include <LibWeb/HTML/CanvasGradient.h>
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#include <LibWeb/Layout/InlineNode.h>
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#include <LibWeb/Layout/LineBox.h>
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#include <LibWeb/WebIDL/ExceptionOr.h>
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namespace Web::HTML {
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// https://html.spec.whatwg.org/multipage/canvas.html#canvasimagesource
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// NOTE: This is the Variant created by the IDL wrapper generator, and needs to be updated accordingly.
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using CanvasImageSource = Variant<JS::Handle<HTMLImageElement>, JS::Handle<HTMLCanvasElement>>;
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class CanvasRenderingContext2D
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: public Bindings::PlatformObject
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, public CanvasPath
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, public CanvasState
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, public CanvasTransform<CanvasRenderingContext2D>
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, public CanvasFillStrokeStyles<CanvasRenderingContext2D>
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, public CanvasRect
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, public CanvasDrawPath
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, public CanvasText
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, public CanvasDrawImage
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, public CanvasImageData
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, public CanvasImageSmoothing
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, public CanvasCompositing
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, public CanvasPathDrawingStyles<CanvasRenderingContext2D>
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, public CanvasTextDrawingStyles<CanvasRenderingContext2D> {
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WEB_PLATFORM_OBJECT(CanvasRenderingContext2D, Bindings::PlatformObject);
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JS_DECLARE_ALLOCATOR(CanvasRenderingContext2D);
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public:
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[[nodiscard]] static JS::NonnullGCPtr<CanvasRenderingContext2D> create(JS::Realm&, HTMLCanvasElement&);
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virtual ~CanvasRenderingContext2D() override;
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virtual void fill_rect(float x, float y, float width, float height) override;
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virtual void stroke_rect(float x, float y, float width, float height) override;
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virtual void clear_rect(float x, float y, float width, float height) override;
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virtual WebIDL::ExceptionOr<void> draw_image_internal(CanvasImageSource const&, float source_x, float source_y, float source_width, float source_height, float destination_x, float destination_y, float destination_width, float destination_height) override;
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virtual void begin_path() override;
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virtual void stroke() override;
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virtual void stroke(Path2D const& path) override;
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virtual void fill_text(StringView, float x, float y, Optional<double> max_width) override;
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virtual void stroke_text(StringView, float x, float y, Optional<double> max_width) override;
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virtual void fill(StringView fill_rule) override;
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virtual void fill(Path2D& path, StringView fill_rule) override;
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virtual JS::GCPtr<ImageData> create_image_data(int width, int height) const override;
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virtual WebIDL::ExceptionOr<JS::GCPtr<ImageData>> get_image_data(int x, int y, int width, int height) const override;
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virtual void put_image_data(ImageData const&, float x, float y) override;
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virtual void reset_to_default_state() override;
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JS::NonnullGCPtr<HTMLCanvasElement> canvas_for_binding() const;
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virtual JS::NonnullGCPtr<TextMetrics> measure_text(StringView text) override;
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virtual void clip(StringView fill_rule) override;
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virtual void clip(Path2D& path, StringView fill_rule) override;
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virtual bool image_smoothing_enabled() const override;
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virtual void set_image_smoothing_enabled(bool) override;
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virtual Bindings::ImageSmoothingQuality image_smoothing_quality() const override;
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virtual void set_image_smoothing_quality(Bindings::ImageSmoothingQuality) override;
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virtual float global_alpha() const override;
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virtual void set_global_alpha(float) override;
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HTMLCanvasElement& canvas_element();
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HTMLCanvasElement const& canvas_element() const;
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private:
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explicit CanvasRenderingContext2D(JS::Realm&, HTMLCanvasElement&);
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virtual void initialize(JS::Realm&) override;
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virtual void visit_edges(Cell::Visitor&) override;
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struct PreparedTextGlyph {
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String glyph;
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Gfx::IntPoint position;
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};
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struct PreparedText {
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Vector<PreparedTextGlyph> glyphs;
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Gfx::TextAlignment physical_alignment;
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Gfx::IntRect bounding_box;
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};
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void did_draw(Gfx::FloatRect const&);
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template<typename TDrawFunction>
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void draw_clipped(TDrawFunction draw_function)
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{
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auto painter = this->antialiased_painter();
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if (!painter.has_value())
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return;
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ScopedCanvasPathClip clipper(painter->underlying_painter(), drawing_state().clip);
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auto draw_rect = draw_function(*painter);
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if (drawing_state().clip.has_value())
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draw_rect.intersect(drawing_state().clip->path.bounding_box());
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did_draw(draw_rect);
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}
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RefPtr<Gfx::Font const> current_font();
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PreparedText prepare_text(ByteString const& text, float max_width = INFINITY);
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Gfx::Painter* painter();
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Optional<Gfx::AntiAliasingPainter> antialiased_painter();
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Gfx::Path rect_path(float x, float y, float width, float height);
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void stroke_internal(Gfx::Path const&);
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void fill_internal(Gfx::Path const&, Gfx::Painter::WindingRule);
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void clip_internal(Gfx::Path&, Gfx::Painter::WindingRule);
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JS::NonnullGCPtr<HTMLCanvasElement> m_element;
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OwnPtr<Gfx::Painter> m_painter;
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// https://html.spec.whatwg.org/multipage/canvas.html#concept-canvas-origin-clean
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bool m_origin_clean { true };
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};
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enum class CanvasImageSourceUsability {
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Bad,
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Good,
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};
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WebIDL::ExceptionOr<CanvasImageSourceUsability> check_usability_of_image(CanvasImageSource const&);
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bool image_is_not_origin_clean(CanvasImageSource const&);
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}
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