ladybird/Userland/Applications/PixelPaint/Selection.cpp
Andreas Kling d571159aeb PixelPaint: Move selection from ImageEditor to Image
This is preparation for making selection state undoable.
2022-08-26 01:04:52 +02:00

57 lines
1 KiB
C++

/*
* Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "Selection.h"
#include "ImageEditor.h"
#include <LibGfx/Painter.h>
namespace PixelPaint {
Selection::Selection(Image& image)
: m_image(image)
{
}
void Selection::clear()
{
m_mask = {};
for (auto* client : m_clients)
client->selection_did_change();
}
void Selection::merge(Mask const& mask, MergeMode mode)
{
switch (mode) {
case MergeMode::Set:
m_mask = mask;
break;
case MergeMode::Add:
m_mask.add(mask);
break;
case MergeMode::Subtract:
m_mask.subtract(mask);
break;
case MergeMode::Intersect:
m_mask.intersect(mask);
break;
default:
VERIFY_NOT_REACHED();
}
}
void Selection::add_client(SelectionClient& client)
{
VERIFY(!m_clients.contains(&client));
m_clients.set(&client);
}
void Selection::remove_client(SelectionClient& client)
{
VERIFY(m_clients.contains(&client));
m_clients.remove(&client);
}
}