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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/AbstractView.h>
#include <LibGUI/Model.h>
namespace GUI {
Model::Model()
{
}
Model::~Model()
{
}
void Model::register_view(Badge<AbstractView>, AbstractView& view)
{
m_views.set(&view);
}
void Model::unregister_view(Badge<AbstractView>, AbstractView& view)
{
m_views.remove(&view);
}
void Model::for_each_view(Function<void(AbstractView&)> callback)
{
for (auto* view : m_views)
callback(*view);
}
void Model::did_update(unsigned flags)
{
if (on_update)
on_update();
for_each_view([&](auto& view) {
view.did_update_model(flags);
});
}
ModelIndex Model::create_index(int row, int column, const void* data) const
{
return ModelIndex(*this, row, column, const_cast<void*>(data));
}
ModelIndex Model::sibling(int row, int column, const ModelIndex& parent) const
{
if (!parent.is_valid())
return index(row, column, {});
int row_count = this->row_count(parent);
if (row < 0 || row > row_count)
return {};
return index(row, column, parent);
}
bool Model::accepts_drag(const ModelIndex&, const StringView&)
{
return false;
}
}
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