1 files changed, 0 insertions, 364 deletions
diff --git a/doc/src/snippets/gestures/imageviewer/imagewidget.cpp b/doc/src/snippets/gestures/imageviewer/imagewidget.cpp
deleted file mode 100644
index 409db2e..0000000
--- a/doc/src/snippets/gestures/imageviewer/imagewidget.cpp
+++ /dev/null
@@ -1,364 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
-** All rights reserved.
-** 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 Technology Preview License Agreement accompanying
-** this package.
-**
-** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
-**
-** If you have questions regarding the use of this file, please contact
-** Nokia at qt-info@nokia.com.
-**
-**
-**
-**
-**
-**
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include "imagewidget.h"
-
-#include <QtGui>
-
-ImageWidget::ImageWidget(QWidget *parent)
-    : QWidget(parent)
-{
-    setAttribute(Qt::WA_AcceptTouchEvents);
-    setAttribute(Qt::WA_PaintOnScreen);
-    setAttribute(Qt::WA_OpaquePaintEvent);
-    setAttribute(Qt::WA_NoSystemBackground);
-
-    setObjectName("ImageWidget");
-
-    setMinimumSize(QSize(100,100));
-
-    position = 0;
-    zoomed = rotated = false;
-
-    zoomedIn = false;
-    horizontalOffset = 0;
-    verticalOffset = 0;
-
-//! [imagewidget-connect]
-    panGesture = new QPanGesture(this);
-    connect(panGesture, SIGNAL(triggered()), this, SLOT(gestureTriggered()));
-
-    tapAndHoldGesture = new TapAndHoldGesture(this);
-    connect(tapAndHoldGesture, SIGNAL(triggered()), this, SLOT(gestureTriggered()));
-    connect(tapAndHoldGesture, SIGNAL(finished()), this, SLOT(gestureFinished()));
-//! [imagewidget-connect]
-}
-
-void ImageWidget::paintEvent(QPaintEvent*)
-{
-    QPainter p(this);
-    if (currentImage.isNull()) {
-        p.fillRect(geometry(), Qt::white);
-        return;
-    }
-    int hoffset = 0;
-    int voffset = 0;
-    const int w = pixmap.width();
-    const int h = pixmap.height();
-    p.save();
-    if (zoomedIn) {
-        hoffset = horizontalOffset;
-        voffset = verticalOffset;
-        if (horizontalOffset > 0)
-            p.fillRect(0, 0, horizontalOffset, height(), Qt::white);
-        if (verticalOffset > 0)
-            p.fillRect(0, 0, width(), verticalOffset, Qt::white);
-    }
-    p.drawPixmap(hoffset, voffset, pixmap);
-    if (hoffset + w < width())
-        p.fillRect(hoffset + w, 0, width() - w - hoffset, height(), Qt::white);
-    if (voffset + h < height())
-        p.fillRect(0, voffset + h, width(), height() - h - voffset, Qt::white);
-
-    // paint touch feedback
-    if (touchFeedback.tapped || touchFeedback.doubleTapped) {
-        p.setPen(QPen(Qt::gray, 2));
-        p.drawEllipse(touchFeedback.position, 5, 5);
-        if (touchFeedback.doubleTapped) {
-            p.setPen(QPen(Qt::darkGray, 2, Qt::DotLine));
-            p.drawEllipse(touchFeedback.position, 15, 15);
-        } else if (touchFeedback.tapAndHoldState != 0) {
-            QPoint pts[8] = {
-                touchFeedback.position + QPoint(  0, -15),
-                touchFeedback.position + QPoint( 10, -10),
-                touchFeedback.position + QPoint( 15,   0),
-                touchFeedback.position + QPoint( 10,  10),
-                touchFeedback.position + QPoint(  0,  15),
-                touchFeedback.position + QPoint(-10,  10),
-                touchFeedback.position + QPoint(-15,   0)
-            };
-            for (int i = 0; i < touchFeedback.tapAndHoldState/5; ++i)
-                p.drawEllipse(pts[i], 3, 3);
-        }
-    } else if (touchFeedback.sliding) {
-        p.setPen(QPen(Qt::red, 3));
-        QPoint endPos = QPoint(touchFeedback.position.x(), touchFeedback.slidingStartPosition.y());
-        p.drawLine(touchFeedback.slidingStartPosition, endPos);
-        int dx = 10;
-        if (touchFeedback.slidingStartPosition.x() < endPos.x())
-            dx = -1*dx;
-        p.drawLine(endPos, endPos + QPoint(dx, 5));
-        p.drawLine(endPos, endPos + QPoint(dx, -5));
-    }
-
-    for (int i = 0; i < TouchFeedback::MaximumNumberOfTouches; ++i) {
-        if (touchFeedback.touches[i].isNull())
-            break;
-        p.drawEllipse(touchFeedback.touches[i], 10, 10);
-    }
-    p.restore();
-}
-
-void ImageWidget::mousePressEvent(QMouseEvent *event)
-{
-    touchFeedback.tapped = true;
-    touchFeedback.position = event->pos();
-}
-
-void ImageWidget::mouseDoubleClickEvent(QMouseEvent *event)
-{
-    touchFeedback.doubleTapped = true;
-    const QPoint p = event->pos();
-    touchFeedback.position = p;
-    horizontalOffset = p.x() - currentImage.width()*1.0*p.x()/width();
-    verticalOffset = p.y() - currentImage.height()*1.0*p.y()/height();
-    setZoomedIn(!zoomedIn);
-    zoomed = rotated = false;
-    updateImage();
-
-    feedbackFadeOutTimer.start(500, this);
-}
-
-//! [imagewidget-triggered-1]
-void ImageWidget::gestureTriggered()
-{
-    if (sender() == panGesture) {
-//! [imagewidget-triggered-1]
-        touchFeedback.tapped = false;
-        touchFeedback.doubleTapped = false;
-        QPanGesture *pg = qobject_cast<QPanGesture*>(sender());
-        if (zoomedIn) {
-#ifndef QT_NO_CURSOR
-            switch (pg->state()) {
-                case Qt::GestureStarted:
-                case Qt::GestureUpdated:
-                    setCursor(Qt::SizeAllCursor);
-                    break;
-                default:
-                    setCursor(Qt::ArrowCursor);
-            }
-#endif
-            horizontalOffset += pg->lastOffset().width();
-            verticalOffset += pg->lastOffset().height();
-        } else {
-            // only slide gesture should be accepted
-            if (pg->state() == Qt::GestureFinished) {
-                touchFeedback.sliding = false;
-                zoomed = rotated = false;
-                if (pg->totalOffset().width() > 0)
-                    goNextImage();
-                else
-                    goPrevImage();
-                updateImage();
-            }
-        }
-        update();
-        feedbackFadeOutTimer.start(500, this);
-    } else if (sender() == tapAndHoldGesture) {
-        if (tapAndHoldGesture->state() == Qt::GestureFinished) {
-            qDebug() << "tap and hold detected";
-            touchFeedback.reset();
-            update();
-
-            QMenu menu;
-            menu.addAction("Action 1");
-            menu.addAction("Action 2");
-            menu.addAction("Action 3");
-            menu.exec(mapToGlobal(tapAndHoldGesture->pos()));
-        } else {
-            ++touchFeedback.tapAndHoldState;
-            update();
-        }
-        feedbackFadeOutTimer.start(500, this);
-    }
-}
-
-void ImageWidget::gestureFinished()
-{
-    qDebug() << "gesture finished" << sender();
-}
-
-void ImageWidget::gestureCancelled()
-{
-    qDebug() << "gesture cancelled" << sender();
-}
-
-void ImageWidget::resizeEvent(QResizeEvent*)
-{
-    updateImage();
-}
-
-void ImageWidget::updateImage()
-{
-    // should use qtconcurrent here?
-    transformation = QTransform();
-    if (zoomedIn) {
-    } else {
-        if (currentImage.isNull())
-            return;
-        if (zoomed) {
-            transformation = transformation.scale(zoom, zoom);
-        } else {
-            double xscale = (double)width()/currentImage.width();
-            double yscale = (double)height()/currentImage.height();
-            if (xscale < yscale)
-                yscale = xscale;
-            else
-                xscale = yscale;
-            transformation = transformation.scale(xscale, yscale);
-        }
-        if (rotated)
-            transformation = transformation.rotate(angle);
-    }
-    pixmap = QPixmap::fromImage(currentImage).transformed(transformation);
-    update();
-}
-
-void ImageWidget::openDirectory(const QString &path)
-{
-    this->path = path;
-    QDir dir(path);
-    QStringList nameFilters;
-    nameFilters << "*.jpg" << "*.png";
-    files = dir.entryList(nameFilters, QDir::Files|QDir::Readable, QDir::Name);
-
-    position = 0;
-    goToImage(0);
-    updateImage();
-}
-
-QImage ImageWidget::loadImage(const QString &fileName)
-{
-    QImageReader reader(fileName);
-    if (!reader.canRead()) {
-        qDebug() << fileName << ": can't load image";
-        return QImage();
-    }
-    QImage image;
-    if (!reader.read(&image)) {
-        qDebug() << fileName << ": corrupted image";
-        return QImage();
-    }
-    return image;
-}
-
-void ImageWidget::setZoomedIn(bool zoomed)
-{
-    zoomedIn = zoomed;
-}
-
-void ImageWidget::goNextImage()
-{
-    if (files.isEmpty())
-        return;
-    if (position < files.size()-1) {
-        ++position;
-        prevImage = currentImage;
-        currentImage = nextImage;
-        if (position+1 < files.size())
-            nextImage = loadImage(path+QLatin1String("/")+files.at(position+1));
-        else
-            nextImage = QImage();
-    }
-    setZoomedIn(false);
-    updateImage();
-}
-
-void ImageWidget::goPrevImage()
-{
-    if (files.isEmpty())
-        return;
-    if (position > 0) {
-        --position;
-        nextImage = currentImage;
-        currentImage = prevImage;
-        if (position > 0)
-            prevImage = loadImage(path+QLatin1String("/")+files.at(position-1));
-        else
-            prevImage = QImage();
-    }
-    setZoomedIn(false);
-    updateImage();
-}
-
-void ImageWidget::goToImage(int index)
-{
-    if (files.isEmpty())
-        return;
-    if (index < 0 || index >= files.size()) {
-        qDebug() << "goToImage: invalid index: " << index;
-        return;
-    }
-    if (index == position+1) {
-        goNextImage();
-        return;
-    }
-    if (position > 0 && index == position-1) {
-        goPrevImage();
-        return;
-    }
-    position = index;
-    pixmap = QPixmap();
-    if (index > 0)
-        prevImage = loadImage(path+QLatin1String("/")+files.at(position-1));
-    else
-        prevImage = QImage();
-    currentImage = loadImage(path+QLatin1String("/")+files.at(position));
-    if (position+1 < files.size())
-        nextImage = loadImage(path+QLatin1String("/")+files.at(position+1));
-    else
-        nextImage = QImage();
-    setZoomedIn(false);
-    updateImage();
-}
-
-void ImageWidget::timerEvent(QTimerEvent *event)
-{
-    if (event->timerId() == touchFeedback.tapTimer.timerId()) {
-        touchFeedback.tapTimer.stop();
-    } else if (event->timerId() == feedbackFadeOutTimer.timerId()) {
-        feedbackFadeOutTimer.stop();
-        touchFeedback.reset();
-    }
-    update();
-}
-
-#include "moc_imagewidget.cpp"