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122 lines
3.3 KiB
C++
122 lines
3.3 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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#include <LibGUI/GLayout.h>
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#include <LibGUI/GWidget.h>
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namespace GUI {
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Layout::Layout()
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{
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}
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Layout::~Layout()
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{
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}
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void Layout::notify_adopted(Badge<Widget>, Widget& widget)
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{
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if (m_owner == &widget)
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return;
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m_owner = widget.make_weak_ptr();
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}
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void Layout::notify_disowned(Badge<Widget>, Widget& widget)
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{
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ASSERT(m_owner == &widget);
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m_owner.clear();
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}
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void Layout::add_entry(Entry&& entry)
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{
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m_entries.append(move(entry));
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if (m_owner)
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m_owner->notify_layout_changed({});
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}
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void Layout::add_spacer()
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{
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Entry entry;
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entry.type = Entry::Type::Spacer;
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add_entry(move(entry));
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}
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void Layout::add_layout(OwnPtr<Layout>&& layout)
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{
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Entry entry;
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entry.type = Entry::Type::Layout;
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entry.layout = move(layout);
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add_entry(move(entry));
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}
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void Layout::add_widget(Widget& widget)
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{
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Entry entry;
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entry.type = Entry::Type::Widget;
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entry.widget = widget.make_weak_ptr();
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add_entry(move(entry));
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}
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void Layout::insert_widget_before(Widget& widget, Widget& before_widget)
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{
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Entry entry;
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entry.type = Entry::Type::Widget;
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entry.widget = widget.make_weak_ptr();
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m_entries.insert_before_matching(move(entry), [&](auto& existing_entry) {
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return existing_entry.type == Entry::Type::Widget && existing_entry.widget.ptr() == &before_widget;
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});
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if (m_owner)
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m_owner->notify_layout_changed({});
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}
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void Layout::remove_widget(Widget& widget)
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{
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m_entries.remove_first_matching([&](auto& entry) {
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return entry.widget == &widget;
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});
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if (m_owner)
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m_owner->notify_layout_changed({});
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}
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void Layout::set_spacing(int spacing)
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{
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if (m_spacing == spacing)
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return;
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m_spacing = spacing;
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if (m_owner)
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m_owner->notify_layout_changed({});
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}
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void Layout::set_margins(const Margins& margins)
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{
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if (m_margins == margins)
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return;
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m_margins = margins;
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if (m_owner)
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m_owner->notify_layout_changed({});
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}
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}
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