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88 lines
2.6 KiB
C++
88 lines
2.6 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <AK/OwnPtr.h>
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#include <AK/Vector.h>
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#include <AK/WeakPtr.h>
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#include <LibCore/Object.h>
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#include <LibGUI/Forward.h>
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#include <LibGUI/Margins.h>
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#include <LibGfx/Forward.h>
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namespace GUI {
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class Layout : public Core::Object {
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C_OBJECT_ABSTRACT(Layout);
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public:
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virtual ~Layout();
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void add_widget(Widget&);
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void insert_widget_before(Widget& widget, Widget& before_widget);
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void add_layout(OwnPtr<Layout>&&);
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void add_spacer();
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void remove_widget(Widget&);
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virtual void run(Widget&) = 0;
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virtual Gfx::IntSize preferred_size() const = 0;
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void notify_adopted(Badge<Widget>, Widget&);
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void notify_disowned(Badge<Widget>, Widget&);
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const Margins& margins() const { return m_margins; }
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void set_margins(const Margins&);
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int spacing() const { return m_spacing; }
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void set_spacing(int);
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protected:
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Layout();
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struct Entry {
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enum class Type {
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Invalid = 0,
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Widget,
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Layout,
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Spacer,
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};
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Type type { Type::Invalid };
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WeakPtr<Widget> widget;
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OwnPtr<Layout> layout;
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};
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void add_entry(Entry&&);
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WeakPtr<Widget> m_owner;
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Vector<Entry> m_entries;
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Margins m_margins;
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int m_spacing { 3 };
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};
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}
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