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author | Jason Barron <jbarron@trolltech.com> | 2009-08-18 06:34:18 (GMT) |
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committer | Jason Barron <jbarron@trolltech.com> | 2009-08-18 06:34:18 (GMT) |
commit | fd6740b6ade6e7f8e51a9cc558b723e7fae15ccf (patch) | |
tree | aa2ba4ce64d047d73c29ab0616e8a89d352c3abd /doc/src/snippets/gestures/imageviewer/imagewidget.h | |
parent | d24029e3d4639f1300e7a68858936911df969f69 (diff) | |
parent | 572e165dcb8cc8fcdfaa4ab9bdab050f6a6cc173 (diff) | |
download | Qt-fd6740b6ade6e7f8e51a9cc558b723e7fae15ccf.zip Qt-fd6740b6ade6e7f8e51a9cc558b723e7fae15ccf.tar.gz Qt-fd6740b6ade6e7f8e51a9cc558b723e7fae15ccf.tar.bz2 |
Merge commit 'qt/master'
Conflicts:
doc/src/examples.qdoc
doc/src/plugins-howto.qdoc
doc/src/topics.qdoc
examples/phonon/musicplayer/mainwindow.cpp
src/3rdparty/freetype/src/base/ftobjs.c
src/corelib/global/qglobal.h
src/corelib/tools/qalgorithms.h
src/corelib/tools/qshareddata.cpp
src/corelib/tools/qsharedpointer.cpp
src/corelib/tools/tools.pri
src/corelib/xml/qxmlstream.h
src/gui/painting/painting.pri
src/gui/widgets/qdatetimeedit.cpp
tests/auto/qdesktopservices/qdesktopservices.pro
tests/auto/qgraphicsitem/tst_qgraphicsitem.cpp
tests/auto/qtextcodec/test/test.pro
Diffstat (limited to 'doc/src/snippets/gestures/imageviewer/imagewidget.h')
-rw-r--r-- | doc/src/snippets/gestures/imageviewer/imagewidget.h | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/doc/src/snippets/gestures/imageviewer/imagewidget.h b/doc/src/snippets/gestures/imageviewer/imagewidget.h new file mode 100644 index 0000000..fcad5b9 --- /dev/null +++ b/doc/src/snippets/gestures/imageviewer/imagewidget.h @@ -0,0 +1,137 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples 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 http://qt.nokia.com/contact. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef IMAGEWIDGET_H +#define IMAGEWIDGET_H + +#include <QWidget> +#include <QImage> +#include <QPixmap> + +#include <QtGui> + +#include "tapandholdgesture.h" + +class ImageWidget : public QWidget +{ + Q_OBJECT + +public: + ImageWidget(QWidget *parent = 0); + + void openDirectory(const QString &path); + +protected: + void paintEvent(QPaintEvent*); + void resizeEvent(QResizeEvent*); + void timerEvent(QTimerEvent*); + void mousePressEvent(QMouseEvent*); + void mouseDoubleClickEvent(QMouseEvent*); + +//! [imagewidget-slots] +private slots: + void gestureTriggered(); + void gestureFinished(); + void gestureCancelled(); +//! [imagewidget-slots] + +private: + void updateImage(); + QImage loadImage(const QString &fileName); + void loadImage(); + void setZoomedIn(bool zoomed); + void goNextImage(); + void goPrevImage(); + void goToImage(int index); + + QPanGesture *panGesture; + TapAndHoldGesture *tapAndHoldGesture; + + QString path; + QStringList files; + int position; + + QImage prevImage, nextImage; + QImage currentImage; + QPixmap pixmap; + QTransform transformation; + + bool zoomedIn; + int horizontalOffset; + int verticalOffset; + + bool zoomed; + qreal zoom; + bool rotated; + qreal angle; + + struct TouchFeedback + { + bool tapped; + QPoint position; + bool sliding; + QPoint slidingStartPosition; + QBasicTimer tapTimer; + int tapState; + bool doubleTapped; + int tapAndHoldState; + + enum { MaximumNumberOfTouches = 5 }; + QPoint touches[MaximumNumberOfTouches]; + + inline TouchFeedback() { reset(); } + inline void reset() + { + tapped = false; + sliding = false; + tapTimer.stop(); + tapState = 0; + doubleTapped = false; + tapAndHoldState = 0; + for (int i = 0; i < MaximumNumberOfTouches; ++i) { + touches[i] = QPoint(); + } + } + } touchFeedback; + QBasicTimer feedbackFadeOutTimer; +}; + +#endif |