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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 <AK/Vector.h>
#include <AK/WeakPtr.h>
#include <LibCore/Object.h>
#include <LibGUI/Forward.h>
#include <LibGUI/Margins.h>
#include <LibGfx/Forward.h>
namespace GUI {
class Layout : public Core::Object {
C_OBJECT_ABSTRACT(Layout);
public:
virtual ~Layout();
void add_widget(Widget&);
void insert_widget_before(Widget& widget, Widget& before_widget);
void add_layout(OwnPtr<Layout>&&);
void add_spacer();
void remove_widget(Widget&);
virtual void run(Widget&) = 0;
virtual Gfx::IntSize preferred_size() const = 0;
void notify_adopted(Badge<Widget>, Widget&);
void notify_disowned(Badge<Widget>, Widget&);
const Margins& margins() const { return m_margins; }
void set_margins(const Margins&);
int spacing() const { return m_spacing; }
void set_spacing(int);
protected:
Layout();
struct Entry {
enum class Type {
Invalid = 0,
Widget,
Layout,
Spacer,
};
Type type { Type::Invalid };
WeakPtr<Widget> widget;
OwnPtr<Layout> layout;
};
void add_entry(Entry&&);
WeakPtr<Widget> m_owner;
Vector<Entry> m_entries;
Margins m_margins;
int m_spacing { 3 };
};
}
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