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Ladybird: Add a ModelTranslator to translate a GUI::Model to a Qt model
This will be used to expose the DOMTreeModel from LibWebView :^)
This commit is contained in:
parent
2a021084e5
commit
98b6aea234
Notes:
sideshowbarker
2024-07-17 16:23:06 +09:00
Author: https://github.com/awesomekling Commit: https://github.com/SerenityOS/serenity/commit/98b6aea234 Pull-request: https://github.com/SerenityOS/serenity/pull/16583 Reviewed-by: https://github.com/ADKaster Reviewed-by: https://github.com/linusg
84
Ladybird/ModelTranslator.cpp
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84
Ladybird/ModelTranslator.cpp
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/*
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* Copyright (c) 2022, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#define AK_DONT_REPLACE_STD
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#include "ModelTranslator.h"
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#include "Utilities.h"
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#include <QIcon>
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namespace Ladybird {
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ModelTranslator::ModelTranslator(NonnullRefPtr<GUI::Model> model)
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: m_model(move(model))
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{
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}
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ModelTranslator::~ModelTranslator() = default;
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int ModelTranslator::columnCount(QModelIndex const& parent) const
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{
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return m_model->column_count(to_gui(parent));
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}
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int ModelTranslator::rowCount(QModelIndex const& parent) const
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{
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return m_model->row_count(to_gui(parent));
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}
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static QVariant convert_variant(GUI::Variant const& value)
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{
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if (value.is_string())
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return qstring_from_akstring(value.as_string());
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if (value.is_icon()) {
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auto const& gui_icon = value.as_icon();
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auto bitmap = gui_icon.bitmap_for_size(16);
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VERIFY(bitmap);
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auto qt_image = QImage(bitmap->scanline_u8(0), 16, 16, QImage::Format_ARGB32);
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QIcon qt_icon;
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qt_icon.addPixmap(QPixmap::fromImage(qt_image.convertToFormat(QImage::Format::Format_ARGB32_Premultiplied)));
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return qt_icon;
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}
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return {};
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}
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QVariant ModelTranslator::data(QModelIndex const& index, int role) const
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{
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switch (role) {
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case Qt::DisplayRole:
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return convert_variant(m_model->data(to_gui(index), GUI::ModelRole::Display));
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case Qt::DecorationRole:
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return convert_variant(m_model->data(to_gui(index), GUI::ModelRole::Icon));
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default:
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return {};
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}
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}
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QModelIndex ModelTranslator::index(int row, int column, QModelIndex const& parent) const
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{
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return to_qt(m_model->index(row, column, to_gui(parent)));
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}
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QModelIndex ModelTranslator::parent(QModelIndex const& index) const
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{
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return to_qt(m_model->parent_index(to_gui(index)));
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}
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QModelIndex ModelTranslator::to_qt(GUI::ModelIndex const& index) const
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{
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if (!index.is_valid())
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return {};
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return createIndex(index.row(), index.column(), index.internal_data());
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}
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GUI::ModelIndex ModelTranslator::to_gui(QModelIndex const& index) const
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{
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if (!index.isValid())
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return {};
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return m_model->create_index_unsafe(index.row(), index.column(), index.internalPointer());
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}
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}
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33
Ladybird/ModelTranslator.h
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33
Ladybird/ModelTranslator.h
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/*
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* Copyright (c) 2022, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <LibGUI/Model.h>
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#include <QAbstractItemModel>
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namespace Ladybird {
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class ModelTranslator final : public QAbstractItemModel {
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Q_OBJECT
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public:
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explicit ModelTranslator(NonnullRefPtr<GUI::Model>);
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virtual ~ModelTranslator() override;
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virtual int columnCount(QModelIndex const& parent) const override;
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virtual int rowCount(QModelIndex const& parent) const override;
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virtual QVariant data(QModelIndex const&, int role) const override;
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virtual QModelIndex index(int row, int column, QModelIndex const& parent) const override;
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virtual QModelIndex parent(QModelIndex const& index) const override;
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QModelIndex to_qt(GUI::ModelIndex const&) const;
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GUI::ModelIndex to_gui(QModelIndex const&) const;
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private:
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RefPtr<GUI::Model> m_model;
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};
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}
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