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Diffstat (limited to 'demos/embedded/embeddedsvgviewer/embeddedsvgviewer.h')
-rw-r--r-- | demos/embedded/embeddedsvgviewer/embeddedsvgviewer.h | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/demos/embedded/embeddedsvgviewer/embeddedsvgviewer.h b/demos/embedded/embeddedsvgviewer/embeddedsvgviewer.h new file mode 100644 index 0000000..c0af3cf --- /dev/null +++ b/demos/embedded/embeddedsvgviewer/embeddedsvgviewer.h @@ -0,0 +1,87 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the demonstration applications of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 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 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef EMBEDDED_SVG_VIEWER_H +#define EMBEDDED_SVG_VIEWER_H + +#include <QWidget> +#include <QString> +#include <QSvgRenderer> +#include <QSize> +#include <QMouseEvent> +#include <QSlider> +#include <QPushButton> + +class EmbeddedSvgViewer : public QWidget +{ + Q_OBJECT +public: + EmbeddedSvgViewer(const QString& filePath); + virtual void paintEvent(QPaintEvent *event); + void mouseMoveEvent ( QMouseEvent * event ); + void mousePressEvent ( QMouseEvent * event ); + void resizeEvent ( QResizeEvent * event ); + +public slots: + void setZoom(int); // 100 <= newZoom < 0 + +private: + QSvgRenderer* m_renderer; + QSlider* m_zoomSlider; + QPushButton* m_quitButton; + QSize m_imageSize; + qreal m_zoomLevel; + qreal m_imageScale; // How many Image coords 1 widget pixel is worth + + QRectF m_viewBox; + QRectF m_viewBoxBounds; + QSizeF m_viewBoxSize; + QPointF m_viewBoxCenter; + QPointF m_viewBoxCenterOnMousePress; + QPoint m_mousePress; + + void updateImageScale(); + QRectF getViewBox(QPointF viewBoxCenter); +}; + + + +#endif |