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160 lines
3.9 KiB
160 lines
3.9 KiB
//
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// Copyright (C) 2017 James Turner zakalawe@mac.com
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 2 of the
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// License, or (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, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// 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, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#ifndef CANVASCONNECTION_H
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#define CANVASCONNECTION_H
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#include <memory>
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#include <QObject>
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#include <QtWebSockets/QWebSocket>
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#include <QJsonObject>
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#include <QUrl>
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#include <QRectF>
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#include <QPointer>
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#include <QTimer>
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class LocalProp;
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class QNetworkAccessManager;
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class FGQCanvasImageLoader;
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class FGQCanvasFontCache;
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class QDataStream;
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class CanvasConnection : public QObject
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{
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Q_OBJECT
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Q_ENUMS(Status)
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Q_PROPERTY(Status status READ status NOTIFY statusChanged)
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// QML exposed versions of the destination rect
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Q_PROPERTY(QPointF origin READ origin WRITE setOrigin NOTIFY geometryChanged)
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Q_PROPERTY(QSizeF size READ size WRITE setSize NOTIFY geometryChanged)
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Q_PROPERTY(int windowIndex READ windowIndex WRITE setWindowIndex NOTIFY geometryChanged)
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Q_PROPERTY(QUrl webSocketUrl READ webSocketUrl NOTIFY webSocketUrlChanged)
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Q_PROPERTY(QString rootPath READ rootPath NOTIFY rootPathChanged)
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public:
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explicit CanvasConnection(QObject *parent = nullptr);
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~CanvasConnection();
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void setNetworkAccess(QNetworkAccessManager *dl);
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void setRootPropertyPath(QByteArray path);
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void setAutoReconnect();
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enum Status
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{
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NotConnected,
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Connecting,
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Connected,
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Closed,
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Reconnecting,
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Error,
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Snapshot // offline mode, data from snapshot
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};
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Status status() const
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{
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return m_status;
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}
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QJsonObject saveState() const;
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bool restoreState(QJsonObject state);
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void saveSnapshot(QDataStream& ds) const;
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void restoreSnapshot(QDataStream &ds);
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void connectWebSocket(QByteArray hostName, int port);
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QPointF origin() const;
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QSizeF size() const;
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int windowIndex() const
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{
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return m_windowIndex;
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}
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void setWindowIndex(int index);
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LocalProp* propertyRoot() const;
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QUrl webSocketUrl() const
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{
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return m_webSocketUrl;
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}
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QString rootPath() const
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{
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return QString::fromUtf8(m_rootPropertyPath);
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}
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FGQCanvasImageLoader* imageLoader() const;
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FGQCanvasFontCache* fontCache() const;
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public Q_SLOTS:
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void reconnect();
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// not on iOS / Android - requires widgets
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void showDebugTree();
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void setOrigin(QPointF center);
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void setSize(QSizeF size);
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signals:
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void statusChanged(Status status);
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void geometryChanged();
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void rootPathChanged();
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void webSocketUrlChanged();
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void updated();
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private Q_SLOTS:
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void onWebSocketConnected();
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void onTextMessageReceived(QString message);
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void onWebSocketClosed();
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private:
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void setStatus(Status newStatus);
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LocalProp *propertyFromPath(QByteArray path) const;
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QUrl m_webSocketUrl;
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QByteArray m_rootPropertyPath;
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QRectF m_destRect;
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int m_windowIndex = 0;
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QWebSocket m_webSocket;
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QNetworkAccessManager* m_netAccess = nullptr;
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QTimer* m_reconnectTimer = nullptr;
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bool m_autoReconnect = false;
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std::unique_ptr<LocalProp> m_localPropertyRoot;
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QHash<int, QPointer<LocalProp>> idPropertyDict;
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Status m_status = NotConnected;
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mutable FGQCanvasImageLoader* m_imageLoader = nullptr;
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mutable FGQCanvasFontCache* m_fontCache = nullptr;
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};
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#endif // CANVASCONNECTION_H
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