mirror of https://github.com/qt/qtdoc.git
114 lines
3.0 KiB
C++
114 lines
3.0 KiB
C++
// Copyright (C) 2023 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
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#ifndef ABSTRACTVIEWER_H
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#define ABSTRACTVIEWER_H
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#include <QObject>
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#include <QtCompilerDetection>
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#if defined(QT_SHARED) || !defined(QT_STATIC)
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# if defined(BUILD_ABSTRACTVIEWER_LIB)
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# define ABSTRACTVIEWER_EXPORT Q_DECL_EXPORT
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# else
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# define ABSTRACTVIEWER_EXPORT Q_DECL_IMPORT
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# endif
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#else
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# define ABSTRACTVIEWER_EXPORT
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#endif
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QT_BEGIN_NAMESPACE
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class QAction;
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class QFile;
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class QMainWindow;
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class QMenu;
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class QMenuBar;
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class QPrinter;
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class QToolBar;
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class QTabWidget;
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class QScrollArea;
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class QStatusBar;
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QT_END_NAMESPACE
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class ABSTRACTVIEWER_EXPORT AbstractViewer : public QObject
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{
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Q_OBJECT
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protected:
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AbstractViewer();
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public:
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virtual ~AbstractViewer();
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virtual void init(QFile *file, QWidget *widget, QMainWindow *mainWindow);
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void initViewer(QAction *back, QAction *forward, QAction *help, QTabWidget *tabs);
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virtual bool isModified() const;
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virtual bool saveDocument();
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virtual bool saveDocumentAs();
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virtual QString viewerName() const = 0;
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virtual bool supportsOverview() const;
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virtual QByteArray saveState() const = 0;
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virtual bool restoreState(QByteArray &) = 0;
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virtual bool hasContent() const;
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virtual QStringList supportedMimeTypes() const = 0;
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virtual QStringList supportedExtensions() const { return {}; }
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virtual bool isDefaultViewer() const;
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virtual void cleanup();
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bool isEmpty() const;
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bool isPrintingEnabled() const;
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AbstractViewer *viewer();
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const AbstractViewer *viewer() const;
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QList<QAction *> actions() const;
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QWidget *widget() const;
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QList<QMenu *> menus() const;
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#ifdef QT_DOCUMENTVIEWER_PRINTSUPPORT
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protected:
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virtual void printDocument(QPrinter *) const {};
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#endif
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signals:
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void uiInitialized();
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void printingEnabledChanged(bool enabled);
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void showMessage(const QString &message, int timeout = 8000);
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void documentLoaded(const QString &fileName);
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public slots:
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void print();
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protected:
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struct UiAssets {
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QMainWindow *mainWindow = nullptr;
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QAction *back = nullptr;
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QAction *forward = nullptr;
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QAction *help = nullptr;
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QTabWidget *tabs = nullptr;
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} m_uiAssets;
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void statusMessage(const QString &message, const QString &type = QString(), int timeout = 8000);
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QToolBar *addToolBar(const QString &);
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QMenu *addMenu(const QString &);
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QMenu *fileMenu();
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QMainWindow *mainWindow() const;
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QStatusBar *statusBar() const;
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QMenuBar *menuBar() const;
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std::unique_ptr<QFile> m_file;
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QList<QAction *> m_actions;
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QWidget *m_widget = nullptr;
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QList<QMetaObject::Connection> m_connections;
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protected slots:
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void maybeSetPrintingEnabled(bool enabled);
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void maybeEnablePrinting();
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void disablePrinting();
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private:
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QList<QMenu *> m_menus;
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QList<QToolBar *> m_toolBars;
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bool m_printingEnabled = false;
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};
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#endif // ABSTRACTVIEWER_H
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