Added ImageSearch model and QML page
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Digital Artifex
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/*
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* Komplex Wallpaper Engine
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* Copyright (C) 2026 @DigitalArtifex
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* https://digitalartifex.dev - https://github.com/DigitalArtifex
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>
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*/
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#ifndef ImageSearchModel_H
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#define ImageSearchModel_H
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#include <QObject>
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#include <QQmlEngine>
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#include <QList>
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#include <QStandardPaths>
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#include <QDir>
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#include <QFile>
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#include <QFileInfo>
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#include <QJsonParseError>
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#include <QJsonDocument>
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#include <QJsonObject>
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#include <QJsonArray>
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#include <QAbstractListModel>
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#include <QProcess>
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#include <QNetworkAccessManager>
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#include <QNetworkReply>
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#include <QNetworkRequest>
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#include <QEventLoop>
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#include "paginators/imagesearchpaginator.h"
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/**
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* @brief The ImageSearchModel class
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*/
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class KOMPLEX_EXPORT ImageSearchModel : public QAbstractListModel
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{
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Q_OBJECT
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QML_ELEMENT
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public:
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/**
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* @brief Used to control the UI state
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*/
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enum State
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{
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Idle,
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Loading,
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Error
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};
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Q_ENUM(State)
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/**
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* @brief Data roles used by the view to request data
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*/
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enum DataRole {
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UuidRole = Qt::UserRole + 1,
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AuthorRole,
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AuthorIdRole,
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AuthorUrlRole,
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DescriptionRole,
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ThumbnailRole,
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PortraitUrlRole,
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LandscapeUrlRole,
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SmallUrlRole,
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OriginalUrlRole,
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MediumUrlRole,
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LargeUrlRole,
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ExtraLargeUrlRole
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};
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Q_ENUM(DataRole)
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explicit ImageSearchModel(QObject *parent = nullptr);
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auto rowCount(const QModelIndex &parent = QModelIndex()) const -> int override;
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/**
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* @brief data
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* Used by the view to pull data from the model.
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* Required by QAbstractListModel
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* @param index
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* @param role
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* @return
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*/
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auto data(
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const QModelIndex &index,
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int role = Qt::DisplayRole
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) const -> QVariant override;
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/**
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* @brief index
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* Used by the view to create an index for the data point.
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* Required by QAbstractListModel
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* @param row
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* @param column
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* @param parent
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* @return
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*/
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auto index(
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int row,
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int column,
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const QModelIndex &parent = QModelIndex()
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) const -> QModelIndex override;
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/**
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* @brief columnCount
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* Required by QAbstractListModel, but just returns 0
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* since we dont use cols
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* @param parent
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* @return
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*/
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auto columnCount(
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const QModelIndex &parent = QModelIndex()
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) const -> int override;
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/**
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* @brief parent
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* @param index
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* @return
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*/
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auto parent(const QModelIndex &index) const -> QModelIndex override;
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/**
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* @brief setData
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* Required by QAbstractListModel but not used
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* @param index
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* @param value
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* @param role
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* @return true always
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*/
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auto setData(
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const QModelIndex &index,
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const QVariant &value,
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int role = Qt::EditRole
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) -> bool override;
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/**
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* @brief state
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* Current Model State
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* @return
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*/
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auto state() const -> State;
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/**
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* @brief roleNames
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* Used to tell the view what data roles are available
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* and their QML friendly names
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* @return
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*/
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auto roleNames() const -> QHash<int, QByteArray> override;
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/**
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* @brief errorString
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* User-friendly error string to be reported to the user
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* @return
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*/
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auto errorString() const -> QString;
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/**
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* @brief resultsPerPage
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* @return
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*/
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auto resultsPerPage() const -> qsizetype;
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/**
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* @brief setResultsPerPage
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* @param resultsPerPage
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*/
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auto setResultsPerPage(qsizetype resultsPerPage) -> void;
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/**
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* @brief totalResults
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* Total number of results available
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* @return
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*/
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auto totalResults() const -> qsizetype;
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/**
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* @brief page
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* @return
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*/
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auto page() const -> qsizetype;
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/**
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* @brief totalPages
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* Total pages based on the current resultsPerPage
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* @return
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*/
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auto totalPages() const -> qsizetype;
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/**
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* @brief nextPage
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* Function for the QML frontend
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*/
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Q_INVOKABLE auto nextPage() const -> void;
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/**
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* @brief previousPage
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* Function for the QML frontend
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*/
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Q_INVOKABLE auto previousPage() const -> void;
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/**
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* @brief query
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* Current search query
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* @return
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*/
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auto query() const -> QString;
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/**
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* @brief setQuery
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* Sets the current
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* @param query
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*/
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auto setQuery(const QString &query) -> void;
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protected:
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/**
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* @brief setErrorString
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* @param errorString
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*/
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auto setErrorString(const QString &errorString) -> void;
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/**
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* @brief setState
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* @param state
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*/
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auto setState(State state) -> void;
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/**
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* @brief resetState
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*/
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auto resetState() -> void;
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auto resetDataModel() -> void;
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auto hasNextPage() -> bool;
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auto hasPreviousPage() -> bool;
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signals:
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auto stateChanged() -> void;
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auto errorStringChanged() -> void;
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auto resultsPerPageChanged() -> void;
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auto pageChanged() -> void;
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auto totalResultsChanged() -> void;
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auto totalPagesChanged() -> void;
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auto queryChanged() -> void;
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private:
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static inline const QHash<int, QByteArray> m_dataRoles =
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{
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{
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static_cast<int>(UuidRole),
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QByteArray("uuid")
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},
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{
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static_cast<int>(AuthorRole),
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QByteArray("author")
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},
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{
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static_cast<int>(AuthorIdRole),
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QByteArray("authorId")
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},
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{
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static_cast<int>(AuthorUrlRole),
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QByteArray("authorUrl")
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},
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{
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static_cast<int>(DescriptionRole),
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QByteArray("description")
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},
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{
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static_cast<int>(ThumbnailRole),
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QByteArray("thumbnail")
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},
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{
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static_cast<int>(PortraitUrlRole),
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QByteArray("portrait")
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},
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{
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static_cast<int>(LandscapeUrlRole),
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QByteArray("landscape")
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},
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{
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static_cast<int>(SmallUrlRole),
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QByteArray("small")
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},
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{
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static_cast<int>(OriginalUrlRole),
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QByteArray("original")
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},
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{
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static_cast<int>(MediumUrlRole),
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QByteArray("medium")
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},
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{
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static_cast<int>(LargeUrlRole),
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QByteArray("large")
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},
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{
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static_cast<int>(ExtraLargeUrlRole),
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QByteArray("extraLarge")
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}
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};
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State m_state = Idle;
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QString m_errorString = QString();
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ImageSearchPaginator *m_paginator = nullptr;
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mutable QList<ImageCache> m_data;
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Q_PROPERTY(State state READ state WRITE setState RESET resetState NOTIFY stateChanged FINAL)
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Q_PROPERTY(QString errorString READ errorString WRITE setErrorString NOTIFY errorStringChanged FINAL)
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Q_PROPERTY(qsizetype resultsPerPage READ resultsPerPage WRITE setResultsPerPage NOTIFY resultsPerPageChanged FINAL)
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Q_PROPERTY(qsizetype totalResults READ totalResults NOTIFY totalResultsChanged FINAL)
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Q_PROPERTY(qsizetype totalPages READ totalPages NOTIFY totalPagesChanged FINAL)
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Q_PROPERTY(qsizetype page READ page NOTIFY pageChanged FINAL)
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Q_PROPERTY(bool hasNextPage READ hasNextPage NOTIFY pageChanged FINAL)
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Q_PROPERTY(bool hasPreviousPage READ hasPreviousPage NOTIFY pageChanged FINAL)
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Q_PROPERTY(QString query READ query WRITE setQuery NOTIFY queryChanged FINAL)
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};
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Q_DECLARE_METATYPE(ImageSearchModel)
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#endif // ImageSearchModel_H
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