PDF 查看器范例
/**************************************************************************** ** ** Copyright (C) 2017 Klaralvdalens Datakonsult AB (KDAB). ** Contact: http://www.qt.io/licensing/ ** ** This file is part of the QtPDF module of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:LGPL3$ ** Commercial License Usage ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the ** Software or, alternatively, in accordance with the terms contained in ** a written agreement between you and The Qt Company. For licensing terms ** and conditions see http://www.qt.io/terms-conditions. For further ** information use the contact form at http://www.qt.io/contact-us. ** ** GNU Lesser General Public License Usage ** Alternatively, this file may be used under the terms of the GNU Lesser ** General Public License version 3 as published by the Free Software ** Foundation and appearing in the file LICENSE.LGPLv3 included in the ** packaging of this file. Please review the following information to ** ensure the GNU Lesser General Public License version 3 requirements ** will be met: https://www.gnu.org/licenses/lgpl.html. ** ** GNU General Public License Usage ** Alternatively, this file may be used under the terms of the GNU ** General Public License version 2.0 or later as published by the Free ** Software Foundation and appearing in the file LICENSE.GPL included in ** the packaging of this file. Please review the following information to ** ensure the GNU General Public License version 2.0 requirements will be ** met: http://www.gnu.org/licenses/gpl-2.0.html. ** ** $QT_END_LICENSE$ ** ****************************************************************************/#ifndef ZOOMSELECTOR_H #define ZOOMSELECTOR_H #include <QComboBox> #include <QPdfView> class ZoomSelector : public QComboBox { Q_OBJECT public: explicit ZoomSelector(QWidget *parent = nullptr); public slots: void setZoomFactor(qreal zoomFactor); void reset(); signals: void zoomModeChanged(QPdfView::ZoomMode zoomMode); void zoomFactorChanged(qreal zoomFactor); private slots: void onCurrentTextChanged(const QString &text); }; #endif // ZOOMSELECTOR_H