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