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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/OwnPtr.h>
#include <LibGfx/Rect.h>
#include <LibWeb/Layout/LineBox.h>
#include <LibWeb/Layout/Node.h>
#include <LibWeb/Painting/StackingContext.h>
namespace Web::Layout {
class Box : public NodeWithStyleAndBoxModelMetrics {
public:
const Gfx::FloatRect absolute_rect() const;
Gfx::FloatPoint effective_offset() const;
void set_offset(const Gfx::FloatPoint& offset);
void set_offset(float x, float y) { set_offset({ x, y }); }
const Gfx::FloatSize& size() const { return m_size; }
void set_size(const Gfx::FloatSize&);
void set_size(float width, float height) { set_size({ width, height }); }
void set_width(float width) { set_size(width, height()); }
void set_height(float height) { set_size(width(), height); }
float width() const { return m_size.width(); }
float height() const { return m_size.height(); }
Gfx::FloatRect padded_rect() const
{
Gfx::FloatRect rect;
rect.set_x(absolute_x() - box_model().padding.left);
rect.set_width(width() + box_model().padding.left + box_model().padding.right);
rect.set_y(absolute_y() - box_model().padding.top);
rect.set_height(height() + box_model().padding.top + box_model().padding.bottom);
return rect;
}
Gfx::FloatRect bordered_rect() const
{
auto padded_rect = this->padded_rect();
Gfx::FloatRect rect;
rect.set_x(padded_rect.x() - box_model().border.left);
rect.set_width(padded_rect.width() + box_model().border.left + box_model().border.right);
rect.set_y(padded_rect.y() - box_model().border.top);
rect.set_height(padded_rect.height() + box_model().border.top + box_model().border.bottom);
return rect;
}
float margin_box_width() const
{
auto margin_box = box_model().margin_box();
return width() + margin_box.left + margin_box.right;
}
float margin_box_height() const
{
auto margin_box = box_model().margin_box();
return height() + margin_box.top + margin_box.bottom;
}
float border_box_width() const
{
auto border_box = box_model().border_box();
return width() + border_box.left + border_box.right;
}
float border_box_height() const
{
auto border_box = box_model().border_box();
return height() + border_box.top + border_box.bottom;
}
Gfx::FloatRect content_box_as_relative_rect() const
{
return { m_offset, m_size };
}
Gfx::FloatRect margin_box_as_relative_rect() const
{
auto rect = content_box_as_relative_rect();
auto margin_box = box_model().margin_box();
rect.set_x(rect.x() - margin_box.left);
rect.set_width(rect.width() + margin_box.left + margin_box.right);
rect.set_y(rect.y() - margin_box.top);
rect.set_height(rect.height() + margin_box.top + margin_box.bottom);
return rect;
}
float absolute_x() const { return absolute_rect().x(); }
float absolute_y() const { return absolute_rect().y(); }
Gfx::FloatPoint absolute_position() const { return absolute_rect().location(); }
virtual HitTestResult hit_test(const Gfx::IntPoint&, HitTestType) const override;
virtual void set_needs_display() override;
bool is_body() const;
void set_containing_line_box_fragment(LineBoxFragment&);
bool establishes_stacking_context() const;
StackingContext* stacking_context() { return m_stacking_context; }
const StackingContext* stacking_context() const { return m_stacking_context; }
void set_stacking_context(NonnullOwnPtr<StackingContext> context) { m_stacking_context = move(context); }
StackingContext* enclosing_stacking_context();
virtual void paint(PaintContext&, PaintPhase) override;
Vector<LineBox>& line_boxes() { return m_line_boxes; }
const Vector<LineBox>& line_boxes() const { return m_line_boxes; }
LineBox& ensure_last_line_box();
LineBox& add_line_box();
virtual float width_of_logical_containing_block() const;
protected:
Box(DOM::Document& document, DOM::Node* node, NonnullRefPtr<CSS::StyleProperties> style)
: NodeWithStyleAndBoxModelMetrics(document, node, move(style))
{
}
Box(DOM::Document& document, DOM::Node* node, CSS::ComputedValues computed_values)
: NodeWithStyleAndBoxModelMetrics(document, node, move(computed_values))
{
}
virtual void did_set_rect() { }
void paint_background_image(PaintContext&, const Gfx::Bitmap&, CSS::Repeat, CSS::Repeat, Gfx::IntRect);
Vector<LineBox> m_line_boxes;
private:
virtual bool is_box() const final { return true; }
Gfx::FloatPoint m_offset;
Gfx::FloatSize m_size;
// Some boxes hang off of line box fragments. (inline-block, inline-table, replaced, etc)
WeakPtr<LineBoxFragment> m_containing_line_box_fragment;
OwnPtr<StackingContext> m_stacking_context;
};
template<>
inline bool Node::fast_is<Box>() const { return is_box(); }
}
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