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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <LibGUI/GLayout.h>
#include <LibGUI/GWidget.h>
namespace GUI {
Layout::Layout()
{
}
Layout::~Layout()
{
}
void Layout::notify_adopted(Badge<Widget>, Widget& widget)
{
if (m_owner == &widget)
return;
m_owner = widget.make_weak_ptr();
}
void Layout::notify_disowned(Badge<Widget>, Widget& widget)
{
ASSERT(m_owner == &widget);
m_owner.clear();
}
void Layout::add_entry(Entry&& entry)
{
m_entries.append(move(entry));
if (m_owner)
m_owner->notify_layout_changed({});
}
void Layout::add_spacer()
{
Entry entry;
entry.type = Entry::Type::Spacer;
add_entry(move(entry));
}
void Layout::add_layout(OwnPtr<Layout>&& layout)
{
Entry entry;
entry.type = Entry::Type::Layout;
entry.layout = move(layout);
add_entry(move(entry));
}
void Layout::add_widget(Widget& widget)
{
Entry entry;
entry.type = Entry::Type::Widget;
entry.widget = widget.make_weak_ptr();
add_entry(move(entry));
}
void Layout::insert_widget_before(Widget& widget, Widget& before_widget)
{
Entry entry;
entry.type = Entry::Type::Widget;
entry.widget = widget.make_weak_ptr();
m_entries.insert_before_matching(move(entry), [&](auto& existing_entry) {
return existing_entry.type == Entry::Type::Widget && existing_entry.widget.ptr() == &before_widget;
});
if (m_owner)
m_owner->notify_layout_changed({});
}
void Layout::remove_widget(Widget& widget)
{
m_entries.remove_first_matching([&](auto& entry) {
return entry.widget == &widget;
});
if (m_owner)
m_owner->notify_layout_changed({});
}
void Layout::set_spacing(int spacing)
{
if (m_spacing == spacing)
return;
m_spacing = spacing;
if (m_owner)
m_owner->notify_layout_changed({});
}
void Layout::set_margins(const Margins& margins)
{
if (m_margins == margins)
return;
m_margins = margins;
if (m_owner)
m_owner->notify_layout_changed({});
}
}
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