diff options
Diffstat (limited to 'examples')
| -rw-r--r-- | examples/examples.pro | 1 | ||||
| -rw-r--r-- | examples/scroller/graphicsview/graphicsview.pro | 8 | ||||
| -rw-r--r-- | examples/scroller/graphicsview/main.cpp | 295 | ||||
| -rw-r--r-- | examples/scroller/plot/main.cpp | 221 | ||||
| -rw-r--r-- | examples/scroller/plot/plot.pro | 13 | ||||
| -rw-r--r-- | examples/scroller/plot/plotwidget.cpp | 204 | ||||
| -rw-r--r-- | examples/scroller/plot/plotwidget.h | 88 | ||||
| -rw-r--r-- | examples/scroller/plot/settingswidget.cpp | 689 | ||||
| -rw-r--r-- | examples/scroller/plot/settingswidget.h | 108 | ||||
| -rw-r--r-- | examples/scroller/scroller.pro | 11 | ||||
| -rw-r--r-- | examples/scroller/wheel/main.cpp | 122 | ||||
| -rw-r--r-- | examples/scroller/wheel/wheel.pro | 11 | ||||
| -rw-r--r-- | examples/scroller/wheel/wheelwidget.cpp | 275 | ||||
| -rw-r--r-- | examples/scroller/wheel/wheelwidget.h | 103 |
14 files changed, 0 insertions, 2149 deletions
diff --git a/examples/examples.pro b/examples/examples.pro index 968740d..f233aba 100644 --- a/examples/examples.pro +++ b/examples/examples.pro @@ -20,7 +20,6 @@ SUBDIRS = \ mainwindows \ painting \ richtext \ - scroller \ sql \ tools \ tutorials \ diff --git a/examples/scroller/graphicsview/graphicsview.pro b/examples/scroller/graphicsview/graphicsview.pro deleted file mode 100644 index dcebe62..0000000 --- a/examples/scroller/graphicsview/graphicsview.pro +++ /dev/null @@ -1,8 +0,0 @@ -TEMPLATE = app -SOURCES = main.cpp - -# install -target.path = $$[QT_INSTALL_EXAMPLES]/scroller/graphicsview -sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS graphicsview.pro -sources.path = $$[QT_INSTALL_EXAMPLES]/scroller/graphicsview -INSTALLS += target sources diff --git a/examples/scroller/graphicsview/main.cpp b/examples/scroller/graphicsview/main.cpp deleted file mode 100644 index 738a824..0000000 --- a/examples/scroller/graphicsview/main.cpp +++ /dev/null @@ -1,295 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2011 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. -** -** $QT_BEGIN_LICENSE:BSD$ -** You may use this file under the terms of the BSD license as follows: -** -** "Redistribution and use in source and binary forms, with or without -** modification, are permitted provided that the following conditions are -** met: -** * Redistributions of source code must retain the above copyright -** notice, this list of conditions and the following disclaimer. -** * Redistributions in binary form must reproduce the above copyright -** notice, this list of conditions and the following disclaimer in -** the documentation and/or other materials provided with the -** distribution. -** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor -** the names of its contributors may be used to endorse or promote -** products derived from this software without specific prior written -** permission. -** -** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include <QtCore> -#include <QtGui> - -#define NUM_ITEMS 100 -#define NUM_LISTS 10 - -/*! - \class RectObject - Note that it needs to be a QGraphicsObject or else the gestures will not work correctly. -*/ -class RectObject : public QGraphicsObject -{ - Q_OBJECT - -public: - - RectObject(const QString &text, qreal x, qreal y, qreal width, qreal height, QBrush brush, QGraphicsItem *parent = 0) - : QGraphicsObject(parent) - , m_text(text) - , m_rect(x, y, width, height) - , m_pen(brush.color().lighter(), 3.0) - , m_brush(brush) - { - setFlag(QGraphicsItem::ItemClipsToShape, true); - } - - QRectF boundingRect() const - { - // here we only want the size of the children and not the size of the children of the children... - qreal halfpw = m_pen.widthF() / 2; - QRectF rect = m_rect; - if (halfpw > 0.0) - rect.adjust(-halfpw, -halfpw, halfpw, halfpw); - - return rect; - } - - void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) - { - Q_UNUSED(option); - Q_UNUSED(widget); - painter->setPen(m_pen); - painter->setBrush(m_brush); - painter->drawRect(m_rect); - - painter->setPen(Qt::black); - QFont f; - f.setPixelSize(m_rect.height()); - painter->setFont(f); - painter->drawText(m_rect, Qt::AlignCenter, m_text); - } - - QString m_text; - QRectF m_rect; - QPen m_pen; - QBrush m_brush; -}; - -class ViewObject : public QGraphicsObject -{ - Q_OBJECT -public: - ViewObject(QGraphicsObject *parent) - : QGraphicsObject(parent) - { } - - QRectF boundingRect() const - { - QRectF rect; - foreach (QGraphicsItem *item, childItems()) - rect |= item->boundingRect().translated(item->pos()); - return rect; - } - - void paint(QPainter*, const QStyleOptionGraphicsItem*, QWidget*) - { } -}; - -class ListObject : public QGraphicsObject -{ - Q_OBJECT - -public: - ListObject(const QSizeF &size, bool useTouch) - { - m_size = size; - setFlag(QGraphicsItem::ItemClipsChildrenToShape, true); - // grab gesture via Touch or Mouse events - QScroller::grabGesture(this, useTouch ? QScroller::TouchGesture : QScroller::LeftMouseButtonGesture); - - // this needs to be QGraphicsOBJECT - otherwise gesture recognition - // will not work for the parent of the viewport (in this case the - // list) - m_viewport = new ViewObject(this); - - } - - QGraphicsObject *viewport() const - { - return m_viewport; - } - - bool event(QEvent *e) - { - switch (e->type()) { -// ![2] - case QEvent::ScrollPrepare: { - QScrollPrepareEvent *se = static_cast<QScrollPrepareEvent *>(e); - se->setViewportSize(m_size); - QRectF br = m_viewport->boundingRect(); - se->setContentPosRange(QRectF(0, 0, - qMax(qreal(0), br.width() - m_size.width()), - qMax(qreal(0), br.height() - m_size.height()))); - se->setContentPos(-m_viewport->pos()); - se->accept(); - return true; - } -// ![1] -// ![2] - case QEvent::Scroll: { - QScrollEvent *se = static_cast<QScrollEvent *>(e); - m_viewport->setPos(-se->contentPos() - se->overshootDistance()); - return true; - } -// ![2] - default: - break; - } - return QGraphicsObject::event(e); - } - - bool sceneEvent(QEvent *e) - { - switch (e->type()) { - case QEvent::TouchBegin: { - // We need to return true for the TouchBegin here in the - // top-most graphics object - otherwise gestures in our parent - // objects will NOT work at all (the accept() flag is already - // set due to our setAcceptTouchEvents(true) call in the c'tor - return true; - - } - case QEvent::GraphicsSceneMousePress: { - // We need to return true for the MousePress here in the - // top-most graphics object - otherwise gestures in our parent - // objects will NOT work at all (the accept() flag is already - // set to true by Qt) - return true; - - } - default: - break; - } - return QGraphicsObject::sceneEvent(e); - } - - QRectF boundingRect() const - { - return QRectF(0, 0, m_size.width() + 3, m_size.height()); - } - - void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) - { - Q_UNUSED(option); - Q_UNUSED(widget); - painter->setPen(QPen(QColor(100, 100, 100), 3.0)); - painter->drawRect(QRect(1.5, 1.5, m_size.width() - 3, m_size.height() - 3)); - } - - QSizeF m_size; - ViewObject *m_viewport; -}; - -class MainWindow : public QMainWindow -{ - Q_OBJECT - -public: - MainWindow(bool useTouch) - { - m_scene = new QGraphicsScene(); - - // -- make the main list - ListObject *mainList = new ListObject(QSizeF(780, 400), useTouch); - mainList->setObjectName(QLatin1String("MainList")); - m_scene->addItem(mainList); -// ![3] - for (int i=0; i<NUM_LISTS; i++) { - ListObject *childList = new ListObject(QSizeF(mainList->m_size.width()/3, mainList->m_size.height()), useTouch); - childList->setObjectName(QString("ChildList %1").arg(i)); - fillList(childList); - childList->setParentItem(mainList->viewport()); - childList->setPos(i*mainList->m_size.width()/3, 0); - } - mainList->viewport()->setPos(0, 0); - - - /* - list1->setTransformOriginPoint(200, 200); - list1->setRotation(135); - list1->setPos(20 + 200 * .41, 20 + 200 * .41); - */ -// ![3] - - m_view = new QGraphicsView(m_scene); - setCentralWidget(m_view); - setWindowTitle(tr("Gesture example")); - m_scene->setSceneRect(0, 0, m_view->viewport()->width(), m_view->viewport()->height()); - } - - /** - * Fills the list object \a list with RectObjects. - */ - void fillList(ListObject *list) - { - qreal h = list->m_size.height() / 10; - for (int i=0; i<NUM_ITEMS; i++) { - QColor color = QColor(255*i/NUM_ITEMS, 255*(NUM_ITEMS-i)/NUM_ITEMS, 127*(i%2)+64*(i/2%2)); - QString text = QLatin1String("Item #") + QString::number(i); - QGraphicsItem *rect = new RectObject(text, 0, 0, list->m_size.width() - 6, h - 3, QBrush(color), list->viewport()); - rect->setPos(3, h*i+3); - } - list->viewport()->setPos(0, 0); - } - - -protected: - void resizeEvent(QResizeEvent *e) - { - // resize the scene according to our own size to prevent scrolling - m_scene->setSceneRect(0, 0, m_view->viewport()->width(), m_view->viewport()->height()); - QMainWindow::resizeEvent(e); - } - - QGraphicsScene *m_scene; - QGraphicsView *m_view; -}; - -int main(int argc, char *argv[]) -{ - QApplication a(argc, argv); - bool touch = (a.arguments().contains(QLatin1String("--touch"))); - MainWindow mw(touch); -#ifdef Q_WS_S60 - mw.showMaximized(); -#else - mw.show(); -#endif -#ifdef Q_WS_MAC - mw.raise(); -#endif - return a.exec(); -} - -#include "main.moc" diff --git a/examples/scroller/plot/main.cpp b/examples/scroller/plot/main.cpp deleted file mode 100644 index 178a094..0000000 --- a/examples/scroller/plot/main.cpp +++ /dev/null @@ -1,221 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2011 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. -** -** $QT_BEGIN_LICENSE:BSD$ -** You may use this file under the terms of the BSD license as follows: -** -** "Redistribution and use in source and binary forms, with or without -** modification, are permitted provided that the following conditions are -** met: -** * Redistributions of source code must retain the above copyright -** notice, this list of conditions and the following disclaimer. -** * Redistributions in binary form must reproduce the above copyright -** notice, this list of conditions and the following disclaimer in -** the documentation and/or other materials provided with the -** distribution. -** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor -** the names of its contributors may be used to endorse or promote -** products derived from this software without specific prior written -** permission. -** -** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include <QApplication> -#include <QListWidget> -#include <QListWidgetItem> -#include <QSplitter> -#include <QStackedWidget> -#include <QSignalMapper> -#include <QMainWindow> -#include <QMenuBar> -#include <QActionGroup> -#include <QWebView> -#include <QTimer> -#include <QScroller> - -#include <QtDebug> - -#include <QGesture> - -#include "settingswidget.h" -#include "plotwidget.h" - - -class MainWindow : public QMainWindow -{ - Q_OBJECT -public: - MainWindow(bool smallscreen, bool touch) - : QMainWindow(), m_touch(touch) - { - m_list = new QListWidget(); - m_list->setVerticalScrollMode(QAbstractItemView::ScrollPerPixel); - m_list_scroller = installKineticScroller(m_list); - - for (int i = 0; i < 1000; ++i) - new QListWidgetItem(QString("This is a test text %1 %2").arg(i).arg(QString("--------").left(i % 8)), m_list); - - connect(m_list, SIGNAL(itemActivated(QListWidgetItem*)), this, SLOT(listItemActivated(QListWidgetItem*))); - connect(m_list, SIGNAL(itemClicked(QListWidgetItem*)), this, SLOT(listItemClicked(QListWidgetItem*))); - connect(m_list, SIGNAL(itemPressed(QListWidgetItem*)), this, SLOT(listItemPressed(QListWidgetItem*))); - connect(m_list, SIGNAL(itemSelectionChanged()), this, SLOT(listItemSelectionChanged())); - connect(m_list, SIGNAL(currentItemChanged(QListWidgetItem*,QListWidgetItem*)), this, SLOT(listItemCurrentChanged(QListWidgetItem*))); - - m_web = new QWebView(); - m_web_scroller = installKineticScroller(m_web); - - QTimer::singleShot(1000, this, SLOT(loadUrl())); - - m_settings = new SettingsWidget(smallscreen); - installKineticScroller(m_settings); - m_plot = new PlotWidget(smallscreen); - - QStackedWidget *stack = new QStackedWidget(); - stack->addWidget(m_list); - stack->addWidget(m_web); - - QActionGroup *pages = new QActionGroup(this); - pages->setExclusive(true); - QSignalMapper *mapper = new QSignalMapper(this); - connect(mapper, SIGNAL(mapped(int)), stack, SLOT(setCurrentIndex(int))); - - createAction("List", pages, mapper, 0, true); - createAction("Web", pages, mapper, 1); - - if (smallscreen) { - stack->addWidget(m_settings); - stack->addWidget(m_plot); - - createAction("Settings", pages, mapper, 2); - createAction("Plot", pages, mapper, 3); - - setCentralWidget(stack); - } else { - QSplitter *split = new QSplitter(); - m_settings->setMinimumWidth(m_settings->sizeHint().width()); - split->addWidget(stack); - split->addWidget(m_settings); - split->addWidget(m_plot); - setCentralWidget(split); - } - menuBar()->addMenu(QLatin1String("Pages"))->addActions(pages->actions()); - connect(stack, SIGNAL(currentChanged(int)), this, SLOT(pageChanged(int))); - pageChanged(0); - } - -private slots: - void pageChanged(int page) - { - if (page < 0 || page > 1) - return; - switch (page) { - case 0: - m_settings->setScroller(m_list); - m_plot->setScroller(m_list); - break; - case 1: - m_settings->setScroller(m_web); - m_plot->setScroller(m_web); - break; - default: - break; - } - } - - void loadUrl() - { - m_web->load(QUrl("http://www.google.com")); - } - - void listItemActivated(QListWidgetItem *lwi) { qWarning() << "Item ACTIVATED: " << lwi->text(); } - void listItemClicked(QListWidgetItem *lwi) { qWarning() << "Item CLICKED: " << lwi->text(); } - void listItemPressed(QListWidgetItem *lwi) { qWarning() << "Item PRESSED: " << lwi->text(); } - void listItemCurrentChanged(QListWidgetItem *lwi) { qWarning() << "Item CURRENT: " << (lwi ? lwi->text() : QString("(none)")); } - void listItemSelectionChanged() - { - int n = m_list->selectedItems().count(); - qWarning("Item%s SELECTED: %d", n == 1 ? "" : "s", n); - foreach (QListWidgetItem *lwi, m_list->selectedItems()) - qWarning() << " " << lwi->text(); - } - -private: - QAction *createAction(const char *text, QActionGroup *group, QSignalMapper *mapper, int mapping, bool checked = false) - { - QAction *a = new QAction(QLatin1String(text), group); - a->setCheckable(true); - a->setChecked(checked); -#if defined(Q_WS_MAC) - a->setMenuRole(QAction::NoRole); -#endif - mapper->setMapping(a, mapping); - connect(a, SIGNAL(toggled(bool)), mapper, SLOT(map())); - return a; - } - - QScroller *installKineticScroller(QWidget *w) - { - if (QAbstractScrollArea *area = qobject_cast<QAbstractScrollArea *>(w)) { - QScroller::grabGesture(area->viewport(), m_touch ? QScroller::TouchGesture : QScroller::LeftMouseButtonGesture); - return QScroller::scroller(area->viewport()); - } else if (QWebView *web = qobject_cast<QWebView *>(w)) { - QScroller::grabGesture(web, m_touch ? QScroller::TouchGesture : QScroller::LeftMouseButtonGesture); - } - return QScroller::scroller(w); - } - -private: - QListWidget *m_list; - QWebView *m_web; - QScroller *m_list_scroller, *m_web_scroller; - SettingsWidget *m_settings; - PlotWidget *m_plot; - bool m_touch; -}; - -int main(int argc, char **argv) -{ - QApplication a(argc, argv); - -#if defined(Q_WS_MAEMO_5) || defined(Q_WS_S60) || defined(Q_WS_WINCE) - bool smallscreen = true; -#else - bool smallscreen = false; -#endif - bool touch = false; - - if (a.arguments().contains(QLatin1String("--small"))) - smallscreen = true; - if (a.arguments().contains(QLatin1String("--touch"))) - touch = true; - - MainWindow mw(smallscreen, touch); - if (smallscreen) - mw.showMaximized(); - else - mw.show(); -#if defined(Q_WS_MAC) - mw.raise(); -#endif - return a.exec(); -} - -#include "main.moc" diff --git a/examples/scroller/plot/plot.pro b/examples/scroller/plot/plot.pro deleted file mode 100644 index 04fdf70..0000000 --- a/examples/scroller/plot/plot.pro +++ /dev/null @@ -1,13 +0,0 @@ -HEADERS = settingswidget.h \ - plotwidget.h -SOURCES = settingswidget.cpp \ - plotwidget.cpp \ - main.cpp - -QT += webkit - -# install -target.path = $$[QT_INSTALL_EXAMPLES]/scroller/plot -sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS plot.pro -sources.path = $$[QT_INSTALL_EXAMPLES]/scroller/plot -INSTALLS += target sources diff --git a/examples/scroller/plot/plotwidget.cpp b/examples/scroller/plot/plotwidget.cpp deleted file mode 100644 index e600652..0000000 --- a/examples/scroller/plot/plotwidget.cpp +++ /dev/null @@ -1,204 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2011 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. -** -** $QT_BEGIN_LICENSE:BSD$ -** You may use this file under the terms of the BSD license as follows: -** -** "Redistribution and use in source and binary forms, with or without -** modification, are permitted provided that the following conditions are -** met: -** * Redistributions of source code must retain the above copyright -** notice, this list of conditions and the following disclaimer. -** * Redistributions in binary form must reproduce the above copyright -** notice, this list of conditions and the following disclaimer in -** the documentation and/or other materials provided with the -** distribution. -** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor -** the names of its contributors may be used to endorse or promote -** products derived from this software without specific prior written -** permission. -** -** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include <QPushButton> -#include <QTextStream> -#include <QColor> -#include <QPainter> -#include <QLabel> -#include <QResizeEvent> -#include <QPlastiqueStyle> -#include <QAbstractScrollArea> - -#include "plotwidget.h" -#include "qscroller.h" - -PlotWidget::PlotWidget(bool /*smallscreen*/) - : QWidget(), m_widget(0) -{ - setWindowTitle(QLatin1String("Plot")); - m_clear = new QPushButton(QLatin1String("Clear"), this); -#if defined(Q_WS_MAEMO_5) - m_clear->setStyle(new QPlastiqueStyle()); - m_clear->setFixedHeight(55); -#endif - connect(m_clear, SIGNAL(clicked()), this, SLOT(reset())); - m_legend = new QLabel(this); - QString legend; - QTextStream ts(&legend); - // ok. this wouldn't pass the w3c html verification... - ts << "<table style=\"color:#000;\" border=\"0\">"; - ts << "<tr><td width=\"30\" bgcolor=\"" << QColor(Qt::red).light().name() << "\" /><td>Velocity X</td></tr>"; - ts << "<tr><td width=\"30\" bgcolor=\"" << QColor(Qt::red).dark().name() << "\" /><td>Velocity Y</td></tr>"; - ts << "<tr><td width=\"30\" bgcolor=\"" << QColor(Qt::green).light().name() << "\" /><td>Content Position X</td></tr>"; - ts << "<tr><td width=\"30\" bgcolor=\"" << QColor(Qt::green).dark().name() << "\" /><td>Content Position Y</td></tr>"; - ts << "<tr><td width=\"30\" bgcolor=\"" << QColor(Qt::blue).light().name() << "\" /><td>Overshoot Position X</td></tr>"; - ts << "<tr><td width=\"30\" bgcolor=\"" << QColor(Qt::blue).dark().name() << "\" /><td>Overshoot Position Y</td></tr>"; - ts << "</table>"; - m_legend->setText(legend); -} - -void PlotWidget::setScroller(QWidget *widget) -{ - if (QAbstractScrollArea *area = qobject_cast<QAbstractScrollArea *>(widget)) - widget = area->viewport(); - - if (m_widget) - m_widget->removeEventFilter(this); - m_widget = widget; - reset(); - if (m_widget) - m_widget->installEventFilter(this); -} - -bool PlotWidget::eventFilter(QObject *obj, QEvent *ev) -{ - if (ev->type() == QEvent::Scroll) { - QScrollEvent *se = static_cast<QScrollEvent *>(ev); - QScroller *scroller = QScroller::scroller(m_widget); - - QPointF v = scroller->velocity(); - //v.rx() *= scroller->pixelPerMeter().x(); - //v.ry() *= scroller->pixelPerMeter().y(); - - PlotItem pi = { v, se->contentPos(), se->overshootDistance() }; - addPlotItem(pi); - } - - return QWidget::eventFilter(obj, ev); -} - -static inline void doMaxMin(const QPointF &v, qreal &minmaxv) -{ - minmaxv = qMax(minmaxv, qMax(qAbs(v.x()), qAbs(v.y()))); -} - -void PlotWidget::addPlotItem(const PlotItem &pi) -{ - m_plotitems.append(pi); - minMaxVelocity = minMaxPosition = 0; - - while (m_plotitems.size() > 500) - m_plotitems.removeFirst(); - - foreach (const PlotItem &pi, m_plotitems) { - doMaxMin(pi.velocity, minMaxVelocity); - doMaxMin(pi.contentPosition, minMaxPosition); - doMaxMin(pi.overshootPosition, minMaxPosition); - } - update(); -} - -void PlotWidget::reset() -{ - m_plotitems.clear(); - minMaxVelocity = minMaxPosition = 0; - update(); -} - -void PlotWidget::resizeEvent(QResizeEvent *) -{ - QSize cs = m_clear->sizeHint(); - QSize ls = m_legend->sizeHint(); - m_clear->setGeometry(4, 4, cs.width(), cs.height()); - m_legend->setGeometry(4, height() - ls.height() - 4, ls.width(), ls.height()); -} - -void PlotWidget::paintEvent(QPaintEvent *) -{ -#define SCALE(v, mm) ((qreal(1) - (v / mm)) * qreal(0.5) * height()) - - QColor rvColor = Qt::red; - QColor cpColor = Qt::green; - QColor opColor = Qt::blue; - - - QPainter p(this); - //p.setRenderHints(QPainter::Antialiasing); //too slow for 60fps - p.fillRect(rect(), Qt::white); - - p.setPen(Qt::black); - p.drawLine(0, SCALE(0, 1), width(), SCALE(0, 1)); - - if (m_plotitems.isEmpty()) - return; - - int x = 2; - int offset = m_plotitems.size() - width() / 2; - QList<PlotItem>::const_iterator it = m_plotitems.constBegin(); - if (offset > 0) - it += (offset - 1); - - const PlotItem *last = &(*it++); - - while (it != m_plotitems.constEnd()) { - p.setPen(rvColor.light()); - p.drawLine(qreal(x - 2), SCALE(last->velocity.x(), minMaxVelocity), - qreal(x), SCALE(it->velocity.x(), minMaxVelocity)); - p.setPen(rvColor.dark()); - p.drawLine(qreal(x - 2), SCALE(last->velocity.y(), minMaxVelocity), - qreal(x), SCALE(it->velocity.y(), minMaxVelocity)); - - p.setPen(cpColor.light()); - p.drawLine(qreal(x - 2), SCALE(last->contentPosition.x(), minMaxPosition), - qreal(x), SCALE(it->contentPosition.x(), minMaxPosition)); - p.setPen(cpColor.dark()); - p.drawLine(qreal(x - 2), SCALE(last->contentPosition.y(), minMaxPosition), - qreal(x), SCALE(it->contentPosition.y(), minMaxPosition)); - - p.setPen(opColor.light()); - p.drawLine(qreal(x - 2), SCALE(last->overshootPosition.x(), minMaxPosition), - qreal(x), SCALE(it->overshootPosition.x(), minMaxPosition)); - p.setPen(opColor.dark()); - p.drawLine(qreal(x - 2), SCALE(last->overshootPosition.y(), minMaxPosition), - qreal(x), SCALE(it->overshootPosition.y(), minMaxPosition)); - - last = &(*it++); - x += 2; - } - - QString toptext = QString("%1 [m/s] / %2 [pix]").arg(minMaxVelocity, 0, 'f', 2).arg(minMaxPosition, 0, 'f', 2); - QString bottomtext = QString("-%1 [m/s] / -%2 [pix]").arg(minMaxVelocity, 0, 'f', 2).arg(minMaxPosition, 0, 'f', 2); - - p.setPen(Qt::black); - p.drawText(rect(), Qt::AlignTop | Qt::AlignHCenter, toptext); - p.drawText(rect(), Qt::AlignBottom | Qt::AlignHCenter, bottomtext); -#undef SCALE -} diff --git a/examples/scroller/plot/plotwidget.h b/examples/scroller/plot/plotwidget.h deleted file mode 100644 index 3c36be9..0000000 --- a/examples/scroller/plot/plotwidget.h +++ /dev/null @@ -1,88 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2011 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. -** -** $QT_BEGIN_LICENSE:BSD$ -** You may use this file under the terms of the BSD license as follows: -** -** "Redistribution and use in source and binary forms, with or without -** modification, are permitted provided that the following conditions are -** met: -** * Redistributions of source code must retain the above copyright -** notice, this list of conditions and the following disclaimer. -** * Redistributions in binary form must reproduce the above copyright -** notice, this list of conditions and the following disclaimer in -** the documentation and/or other materials provided with the -** distribution. -** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor -** the names of its contributors may be used to endorse or promote -** products derived from this software without specific prior written -** permission. -** -** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#ifndef PLOTWIDGET_H -#define PLOTWIDGET_H - -#include <QWidget> -#include <QPointF> - -QT_BEGIN_NAMESPACE -class QPushButton; -class QLabel; -class QScroller; -QT_END_NAMESPACE - -class PlotWidget : public QWidget -{ - Q_OBJECT - -public: - PlotWidget(bool smallscreen = false); - - void setScroller(QWidget *widget); - -public slots: - void reset(); - -protected: - void resizeEvent(QResizeEvent *); - void paintEvent(QPaintEvent *); - - bool eventFilter(QObject *obj, QEvent *ev); - -private: - - struct PlotItem { - QPointF velocity; - QPointF contentPosition; - QPointF overshootPosition; - }; - - void addPlotItem(const PlotItem &pi); - - QWidget *m_widget; - QList<PlotItem> m_plotitems; - qreal minMaxVelocity, minMaxPosition; - QPushButton *m_clear; - QLabel *m_legend; -}; - -#endif diff --git a/examples/scroller/plot/settingswidget.cpp b/examples/scroller/plot/settingswidget.cpp deleted file mode 100644 index c9de008..0000000 --- a/examples/scroller/plot/settingswidget.cpp +++ /dev/null @@ -1,689 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2011 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. -** -** $QT_BEGIN_LICENSE:BSD$ -** You may use this file under the terms of the BSD license as follows: -** -** "Redistribution and use in source and binary forms, with or without -** modification, are permitted provided that the following conditions are -** met: -** * Redistributions of source code must retain the above copyright -** notice, this list of conditions and the following disclaimer. -** * Redistributions in binary form must reproduce the above copyright -** notice, this list of conditions and the following disclaimer in -** the documentation and/or other materials provided with the -** distribution. -** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor -** the names of its contributors may be used to endorse or promote -** products derived from this software without specific prior written -** permission. -** -** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include <QVariant> -#include <QSlider> -#include <QHBoxLayout> -#include <QLabel> -#include <QPushButton> -#include <QComboBox> -#include <QSpinBox> -#include <QGroupBox> -#include <QToolButton> -#include <QCheckBox> -#include <QScrollBar> -#include <QPainter> -#include <QScrollArea> -#include <QScrollPrepareEvent> -#include <QApplication> -#include <QPlainTextEdit> -#include <QTextBlock> -#include <qnumeric.h> - -#include <QEasingCurve> - -#include <QDebug> - -#include "math.h" - -#include "settingswidget.h" -#include "qscroller.h" -#include "qscrollerproperties.h" - -class SnapOverlay : public QWidget -{ - Q_OBJECT -public: - SnapOverlay(QWidget *w) - : QWidget(w) - { - setAttribute(Qt::WA_TransparentForMouseEvents); - - if (QAbstractScrollArea *area = qobject_cast<QAbstractScrollArea *>(w)) { - connect(area->horizontalScrollBar(), SIGNAL(valueChanged(int)), this, SLOT(update())); - connect(area->verticalScrollBar(), SIGNAL(valueChanged(int)), this, SLOT(update())); - area->viewport()->installEventFilter(this); - } - } - void clear(Qt::Orientation o) - { - m_snap[o].clear(); - update(); - } - - void set(Qt::Orientation o, qreal first, qreal step) - { - m_snap[o] = QList<qreal>() << -Q_INFINITY << first << step; - update(); - } - - void set(Qt::Orientation o, const QList<qreal> &list) - { - m_snap[o] = list; - update(); - } - -protected: - bool eventFilter(QObject *o, QEvent *e) - { - if (QAbstractScrollArea *area = qobject_cast<QAbstractScrollArea *>(parentWidget())) { - if (area->viewport() == o) { - if (e->type() == QEvent::Move || e->type() == QEvent::Resize) { - setGeometry(area->viewport()->rect()); - } - } - } - return false; - } - - void paintEvent(QPaintEvent *e) - { - if (QAbstractScrollArea *area = qobject_cast<QAbstractScrollArea *>(parentWidget())) { - int dx = area->horizontalScrollBar()->value(); - int dy = area->verticalScrollBar()->value(); - - QPainter paint(this); - paint.fillRect(e->rect(), Qt::transparent); - paint.setPen(QPen(Qt::red, 9)); - - if (m_snap[Qt::Horizontal].isEmpty()) { - } else if (m_snap[Qt::Horizontal][0] == -Q_INFINITY) { - int start = int(m_snap[Qt::Horizontal][1]); - int step = int(m_snap[Qt::Horizontal][2]); - if (step > 0) { - for (int i = start; i < area->horizontalScrollBar()->maximum(); i += step) - paint.drawPoint(i - dx, 5); - } - } else { - foreach (qreal r, m_snap[Qt::Horizontal]) - paint.drawPoint(int(r) - dx, 5); - } - paint.setPen(QPen(Qt::green, 9)); - if (m_snap[Qt::Vertical].isEmpty()) { - } else if (m_snap[Qt::Vertical][0] == -Q_INFINITY) { - int start = int(m_snap[Qt::Vertical][1]); - int step = int(m_snap[Qt::Vertical][2]); - if (step > 0) { - for (int i = start; i < area->verticalScrollBar()->maximum(); i += step) - paint.drawPoint(5, i - dy); - } - } else { - foreach (qreal r, m_snap[Qt::Vertical]) - paint.drawPoint(5, int(r) - dy); - } - } - } - -private: - QMap<Qt::Orientation, QList<qreal> > m_snap; -}; - -struct MetricItem -{ - QScrollerProperties::ScrollMetric metric; - const char *name; - int scaling; - const char *unit; - QVariant min, max; - QVariant step; -}; - -class MetricItemUpdater : public QObject -{ - Q_OBJECT -public: - MetricItemUpdater(MetricItem *item) - : m_item(item) - , m_widget(0) - , m_slider(0) - , m_combo(0) - , m_valueLabel(0) - { - m_frameRateType = QVariant::fromValue(QScrollerProperties::Standard).userType(); - m_overshootPolicyType = QVariant::fromValue(QScrollerProperties::OvershootWhenScrollable).userType(); - - if (m_item->min.type() == QVariant::EasingCurve) { - m_combo = new QComboBox(); - m_combo->addItem("OutQuad", QEasingCurve::OutQuad); - m_combo->addItem("OutCubic", QEasingCurve::OutCubic); - m_combo->addItem("OutQuart", QEasingCurve::OutQuart); - m_combo->addItem("OutQuint", QEasingCurve::OutQuint); - m_combo->addItem("OutExpo", QEasingCurve::OutExpo); - m_combo->addItem("OutSine", QEasingCurve::OutSine); - m_combo->addItem("OutCirc", QEasingCurve::OutCirc); - } else if (m_item->min.userType() == m_frameRateType) { - m_combo = new QComboBox(); - m_combo->addItem("Standard", QScrollerProperties::Standard); - m_combo->addItem("60 FPS", QScrollerProperties::Fps60); - m_combo->addItem("30 FPS", QScrollerProperties::Fps30); - m_combo->addItem("20 FPS", QScrollerProperties::Fps20); - } else if (m_item->min.userType() == m_overshootPolicyType) { - m_combo = new QComboBox(); - m_combo->addItem("When Scrollable", QScrollerProperties::OvershootWhenScrollable); - m_combo->addItem("Always On", QScrollerProperties::OvershootAlwaysOn); - m_combo->addItem("Always Off", QScrollerProperties::OvershootAlwaysOff); - } else { - m_slider = new QSlider(Qt::Horizontal); - m_slider->setSingleStep(1); - m_slider->setMinimum(-1); - m_slider->setMaximum(qRound((m_item->max.toReal() - m_item->min.toReal()) / m_item->step.toReal())); - m_slider->setValue(-1); - m_valueLabel = new QLabel(); - } - m_nameLabel = new QLabel(QLatin1String(m_item->name)); - if (m_item->unit && m_item->unit[0]) - m_nameLabel->setText(m_nameLabel->text() + QLatin1String(" [") + QLatin1String(m_item->unit) + QLatin1String("]")); - m_resetButton = new QToolButton(); - m_resetButton->setText(QLatin1String("Reset")); - m_resetButton->setEnabled(false); - - connect(m_resetButton, SIGNAL(clicked()), this, SLOT(reset())); - if (m_slider) { - connect(m_slider, SIGNAL(valueChanged(int)), this, SLOT(controlChanged(int))); - m_slider->setMinimum(0); - } else if (m_combo) { - connect(m_combo, SIGNAL(currentIndexChanged(int)), this, SLOT(controlChanged(int))); - } - } - - void setScroller(QWidget *widget) - { - m_widget = widget; - QScroller *scroller = QScroller::scroller(widget); - QScrollerProperties properties = QScroller::scroller(widget)->scrollerProperties(); - - if (m_slider) - m_slider->setEnabled(scroller); - if (m_combo) - m_combo->setEnabled(scroller); - m_nameLabel->setEnabled(scroller); - if (m_valueLabel) - m_valueLabel->setEnabled(scroller); - m_resetButton->setEnabled(scroller); - - if (!scroller) - return; - - m_default_value = properties.scrollMetric(m_item->metric); - valueChanged(m_default_value); - } - - QWidget *nameLabel() { return m_nameLabel; } - QWidget *valueLabel() { return m_valueLabel; } - QWidget *valueControl() { if (m_combo) return m_combo; else return m_slider; } - QWidget *resetButton() { return m_resetButton; } - -private slots: - void valueChanged(const QVariant &v) - { - m_value = v; - if (m_slider) { - switch (m_item->min.type()) { - case QMetaType::Float: - case QVariant::Double: { - m_slider->setValue(qRound((m_value.toReal() * m_item->scaling - m_item->min.toReal()) / m_item->step.toReal())); - break; - } - case QVariant::Int: { - m_slider->setValue(qRound((m_value.toInt() * m_item->scaling - m_item->min.toInt()) / m_item->step.toInt())); - break; - } - default: break; - } - } else if (m_combo) { - if (m_item->min.type() == QVariant::EasingCurve) { - m_combo->setCurrentIndex(m_combo->findData(v.toEasingCurve().type())); - } else if (m_item->min.userType() == m_overshootPolicyType) { - m_combo->setCurrentIndex(m_combo->findData(v.value<QScrollerProperties::OvershootPolicy>())); - } else if (m_item->min.userType() == m_frameRateType) { - m_combo->setCurrentIndex(m_combo->findData(v.value<QScrollerProperties::FrameRates>())); - } - } - } - - void controlChanged(int value) - { - bool combo = (m_combo && (sender() == m_combo)); - QString text; - - if (m_slider && !combo) { - switch (m_item->min.type()) { - case QMetaType::Float: - case QVariant::Double: { - qreal d = m_item->min.toReal() + qreal(value) * m_item->step.toReal(); - text = QString::number(d); - m_value = d / qreal(m_item->scaling); - break; - } - case QVariant::Int: { - int i = m_item->min.toInt() + qRound(qreal(value) * m_item->step.toReal()); - text = QString::number(i); - m_value = i / m_item->scaling; - break; - } - default: break; - } - } else if (m_combo && combo) { - if (m_item->min.type() == QVariant::EasingCurve) { - m_value = QVariant(QEasingCurve(static_cast<QEasingCurve::Type>(m_combo->itemData(value).toInt()))); - } else if (m_item->min.userType() == m_overshootPolicyType) { - m_value = QVariant::fromValue(static_cast<QScrollerProperties::OvershootPolicy>(m_combo->itemData(value).toInt())); - } else if (m_item->min.userType() == m_frameRateType) { - m_value = QVariant::fromValue(static_cast<QScrollerProperties::FrameRates>(m_combo->itemData(value).toInt())); - } - } - if (m_valueLabel) - m_valueLabel->setText(text); - if (m_widget && QScroller::scroller(m_widget)) { - QScrollerProperties properties = QScroller::scroller(m_widget)->scrollerProperties(); - properties.setScrollMetric(m_item->metric, m_value); - QScroller::scroller(m_widget)->setScrollerProperties(properties); - } - - m_resetButton->setEnabled(m_value != m_default_value); - } - - void reset() - { - QScrollerProperties properties = QScroller::scroller(m_widget)->scrollerProperties(); - properties.setScrollMetric(m_item->metric, m_value); - QScroller::scroller(m_widget)->setScrollerProperties(properties); - valueChanged(m_default_value); - } - -private: - MetricItem *m_item; - int m_frameRateType; - int m_overshootPolicyType; - - QWidget *m_widget; - QSlider *m_slider; - QComboBox *m_combo; - QLabel *m_nameLabel, *m_valueLabel; - QToolButton *m_resetButton; - - QVariant m_value, m_default_value; -}; - -#define METRIC(x) QScrollerProperties::x, #x - -MetricItem items[] = { - { METRIC(MousePressEventDelay), 1000, "ms", qreal(0), qreal(2000), qreal(10) }, - { METRIC(DragStartDistance), 1000, "mm", qreal(1), qreal(20), qreal(0.1) }, - { METRIC(DragVelocitySmoothingFactor), 1, "", qreal(0), qreal(1), qreal(0.1) }, - { METRIC(AxisLockThreshold), 1, "", qreal(0), qreal(1), qreal(0.01) }, - - { METRIC(ScrollingCurve), 1, "", QEasingCurve(), 0, 0 }, - { METRIC(DecelerationFactor), 1, "", qreal(0), qreal(3), qreal(0.01) }, - - { METRIC(MinimumVelocity), 1, "m/s", qreal(0), qreal(7), qreal(0.01) }, - { METRIC(MaximumVelocity), 1, "m/s", qreal(0), qreal(7), qreal(0.01) }, - { METRIC(MaximumClickThroughVelocity), 1, "m/s", qreal(0), qreal(7), qreal(0.01) }, - - { METRIC(AcceleratingFlickMaximumTime), 1000, "ms", qreal(100), qreal(5000), qreal(100) }, - { METRIC(AcceleratingFlickSpeedupFactor), 1, "", qreal(1), qreal(7), qreal(0.1) }, - - { METRIC(SnapPositionRatio), 1, "", qreal(0.1), qreal(0.9), qreal(0.1) }, - { METRIC(SnapTime), 1000, "ms", qreal(0), qreal(2000), qreal(10) }, - - { METRIC(OvershootDragResistanceFactor), 1, "", qreal(0), qreal(1), qreal(0.01) }, - { METRIC(OvershootDragDistanceFactor), 1, "", qreal(0), qreal(1), qreal(0.01) }, - { METRIC(OvershootScrollDistanceFactor), 1, "", qreal(0), qreal(1), qreal(0.01) }, - { METRIC(OvershootScrollTime), 1000, "ms", qreal(0), qreal(2000), qreal(10) }, - - { METRIC(HorizontalOvershootPolicy), 1, "", QVariant::fromValue(QScrollerProperties::OvershootWhenScrollable), 0, 0 }, - { METRIC(VerticalOvershootPolicy), 1, "", QVariant::fromValue(QScrollerProperties::OvershootWhenScrollable), 0, 0 }, - { METRIC(FrameRate), 1, "", QVariant::fromValue(QScrollerProperties::Standard), 0, 0 }, -}; - -#undef METRIC - -void SettingsWidget::addToGrid(QGridLayout *grid, QWidget *label, int widgetCount, ...) -{ - va_list args; - va_start(args, widgetCount); - - int rows = grid->rowCount(); - int cols = grid->columnCount(); - - if (label) { - if (m_smallscreen) - grid->addWidget(label, rows++, 0, 1, qMax(cols, widgetCount)); - else - grid->addWidget(label, rows, 0); - } - for (int i = 0; i < widgetCount; i++) { - if (QWidget *w = va_arg(args, QWidget *)) - grid->addWidget(w, rows, m_smallscreen ? i : i + 1); - } - va_end(args); -} - -SettingsWidget::SettingsWidget(bool smallscreen) - : QScrollArea() - , m_widget(0) - , m_snapoverlay(0) - , m_smallscreen(smallscreen) -{ - setWindowTitle(QLatin1String("Settings")); - QWidget *view = new QWidget(); - QVBoxLayout *layout = new QVBoxLayout(view); - QGroupBox *grp; - QGridLayout *grid; - - // GROUP: SCROLL METRICS - - grp = new QGroupBox(QLatin1String("Scroll Metrics")); - grid = new QGridLayout(); - grid->setVerticalSpacing(m_smallscreen ? 4 : 2); - - for (int i = 0; i < int(sizeof(items) / sizeof(items[0])); i++) { - MetricItemUpdater *u = new MetricItemUpdater(items + i); - u->setParent(this); - addToGrid(grid, u->nameLabel(), 3, u->valueControl(), u->valueLabel(), u->resetButton()); - m_metrics.append(u); - } - grp->setLayout(grid); - layout->addWidget(grp); - - // GROUP: SCROLL TO - - grp = new QGroupBox(QLatin1String("Scroll To")); - grid = new QGridLayout(); - grid->setVerticalSpacing(m_smallscreen ? 4 : 2); - - m_scrollx = new QSpinBox(); - m_scrolly = new QSpinBox(); - m_scrolltime = new QSpinBox(); - m_scrolltime->setRange(0, 10000); - m_scrolltime->setValue(1000); - m_scrolltime->setSuffix(QLatin1String(" ms")); - QPushButton *go = new QPushButton(QLatin1String("Go")); - connect(go, SIGNAL(clicked()), this, SLOT(scrollTo())); - connect(m_scrollx, SIGNAL(editingFinished()), this, SLOT(scrollTo())); - connect(m_scrolly, SIGNAL(editingFinished()), this, SLOT(scrollTo())); - connect(m_scrolltime, SIGNAL(editingFinished()), this, SLOT(scrollTo())); - grid->addWidget(new QLabel(QLatin1String("X:")), 0, 0); - grid->addWidget(m_scrollx, 0, 1); - grid->addWidget(new QLabel(QLatin1String("Y:")), 0, 2); - grid->addWidget(m_scrolly, 0, 3); - int row = smallscreen ? 1 : 0; - int col = smallscreen ? 0 : 4; - grid->addWidget(new QLabel(QLatin1String("in")), row, col++); - grid->addWidget(m_scrolltime, row, col++); - if (smallscreen) { - grid->addWidget(go, row, col + 1); - } else { - grid->addWidget(go, row, col); - grid->setColumnStretch(5, 1); - grid->setColumnStretch(6, 1); - } - grid->setColumnStretch(1, 1); - grid->setColumnStretch(3, 1); - grp->setLayout(grid); - layout->addWidget(grp); - - QLayout *snapbox = new QHBoxLayout(); - - // GROUP: SNAP POINTS X - - grp = new QGroupBox(QLatin1String("Snap Positions X")); - QBoxLayout *vbox = new QVBoxLayout(); - vbox->setSpacing(m_smallscreen ? 4 : 2); - m_snapx = new QComboBox(); - m_snapx->addItem(QLatin1String("No Snapping"), NoSnap); - m_snapx->addItem(QLatin1String("Snap to Interval"), SnapToInterval); - m_snapx->addItem(QLatin1String("Snap to List"), SnapToList); - connect(m_snapx, SIGNAL(currentIndexChanged(int)), this, SLOT(snapModeChanged(int))); - vbox->addWidget(m_snapx); - - m_snapxinterval = new QWidget(); - grid = new QGridLayout(); - grid->setVerticalSpacing(m_smallscreen ? 4 : 2); - m_snapxfirst = new QSpinBox(); - connect(m_snapxfirst, SIGNAL(valueChanged(int)), this, SLOT(snapPositionsChanged())); - grid->addWidget(new QLabel("First:"), 0, 0); - grid->addWidget(m_snapxfirst, 0, 1); - m_snapxstep = new QSpinBox(); - connect(m_snapxstep, SIGNAL(valueChanged(int)), this, SLOT(snapPositionsChanged())); - grid->addWidget(new QLabel("Interval:"), 0, 2); - grid->addWidget(m_snapxstep, 0, 3); - m_snapxinterval->setLayout(grid); - vbox->addWidget(m_snapxinterval); - m_snapxinterval->hide(); - - m_snapxlist = new QPlainTextEdit(); - m_snapxlist->setToolTip(QLatin1String("One snap position per line. Empty lines are ignored.")); - m_snapxlist->installEventFilter(this); - connect(m_snapxlist, SIGNAL(textChanged()), this, SLOT(snapPositionsChanged())); - vbox->addWidget(m_snapxlist); - m_snapxlist->hide(); - - vbox->addStretch(100); - grp->setLayout(vbox); - snapbox->addWidget(grp); - - // GROUP: SNAP POINTS Y - - grp = new QGroupBox(QLatin1String("Snap Positions Y")); - vbox = new QVBoxLayout(); - vbox->setSpacing(m_smallscreen ? 4 : 2); - m_snapy = new QComboBox(); - m_snapy->addItem(QLatin1String("No Snapping"), NoSnap); - m_snapy->addItem(QLatin1String("Snap to Interval"), SnapToInterval); - m_snapy->addItem(QLatin1String("Snap to List"), SnapToList); - connect(m_snapy, SIGNAL(currentIndexChanged(int)), this, SLOT(snapModeChanged(int))); - vbox->addWidget(m_snapy); - - m_snapyinterval = new QWidget(); - grid = new QGridLayout(); - grid->setVerticalSpacing(m_smallscreen ? 4 : 2); - m_snapyfirst = new QSpinBox(); - connect(m_snapyfirst, SIGNAL(valueChanged(int)), this, SLOT(snapPositionsChanged())); - grid->addWidget(new QLabel("First:"), 0, 0); - grid->addWidget(m_snapyfirst, 0, 1); - m_snapystep = new QSpinBox(); - connect(m_snapystep, SIGNAL(valueChanged(int)), this, SLOT(snapPositionsChanged())); - grid->addWidget(new QLabel("Interval:"), 0, 2); - grid->addWidget(m_snapystep, 0, 3); - m_snapyinterval->setLayout(grid); - vbox->addWidget(m_snapyinterval); - m_snapyinterval->hide(); - - m_snapylist = new QPlainTextEdit(); - m_snapylist->setToolTip(QLatin1String("One snap position per line. Empty lines are ignored.")); - m_snapylist->installEventFilter(this); - connect(m_snapylist, SIGNAL(textChanged()), this, SLOT(snapPositionsChanged())); - vbox->addWidget(m_snapylist); - m_snapylist->hide(); - - vbox->addStretch(100); - grp->setLayout(vbox); - snapbox->addWidget(grp); - - layout->addLayout(snapbox); - - layout->addStretch(100); - setWidget(view); - setWidgetResizable(true); -} - -void SettingsWidget::setScroller(QWidget *widget) -{ - delete m_snapoverlay; - if (m_widget) - m_widget->removeEventFilter(this); - QAbstractScrollArea *area = qobject_cast<QAbstractScrollArea *>(widget); - if (area) - widget = area->viewport(); - m_widget = widget; - m_widget->installEventFilter(this); - m_snapoverlay = new SnapOverlay(area); - QScrollerProperties properties = QScroller::scroller(widget)->scrollerProperties(); - - QMutableListIterator<MetricItemUpdater *> it(m_metrics); - while (it.hasNext()) - it.next()->setScroller(widget); - - if (!widget) - return; - - updateScrollRanges(); -} - -bool SettingsWidget::eventFilter(QObject *o, QEvent *e) -{ - if (o == m_widget && e->type() == QEvent::Resize) - updateScrollRanges(); - return false; -} - -void SettingsWidget::updateScrollRanges() -{ - QScrollPrepareEvent spe(QPoint(0, 0)); - QApplication::sendEvent(m_widget, &spe); - - QSizeF vp = spe.viewportSize(); - QRectF maxc = spe.contentPosRange(); - - m_scrollx->setRange(qRound(-vp.width()), qRound(maxc.width() + vp.width())); - m_scrolly->setRange(qRound(-vp.height()), qRound(maxc.height() + vp.height())); - - m_snapxfirst->setRange(maxc.left(), maxc.right()); - m_snapxstep->setRange(0, maxc.width()); - m_snapyfirst->setRange(maxc.top(), maxc.bottom()); - m_snapystep->setRange(0, maxc.height()); -} - -void SettingsWidget::scrollTo() -{ - if (QApplication::activePopupWidget()) - return; - if ((sender() == m_scrollx) && !m_scrollx->hasFocus()) - return; - if ((sender() == m_scrolly) && !m_scrolly->hasFocus()) - return; - if ((sender() == m_scrolltime) && !m_scrolltime->hasFocus()) - return; - - if (QScroller *scroller = QScroller::scroller(m_widget)) - scroller->scrollTo(QPointF(m_scrollx->value(), m_scrolly->value()), m_scrolltime->value()); -} - -void SettingsWidget::snapModeChanged(int mode) -{ - if (sender() == m_snapx) { - m_snapxmode = static_cast<SnapMode>(mode); - m_snapxinterval->setVisible(mode == SnapToInterval); - m_snapxlist->setVisible(mode == SnapToList); - snapPositionsChanged(); - } else if (sender() == m_snapy) { - m_snapymode = static_cast<SnapMode>(mode); - m_snapyinterval->setVisible(mode == SnapToInterval); - m_snapylist->setVisible(mode == SnapToList); - snapPositionsChanged(); - } -} - -void SettingsWidget::snapPositionsChanged() -{ - QScroller *s = QScroller::scroller(m_widget); - if (!s) - return; - - switch (m_snapxmode) { - case NoSnap: - s->setSnapPositionsX(QList<qreal>()); - m_snapoverlay->clear(Qt::Horizontal); - break; - case SnapToInterval: - s->setSnapPositionsX(m_snapxfirst->value(), m_snapxstep->value()); - m_snapoverlay->set(Qt::Horizontal, m_snapxfirst->value(), m_snapxstep->value()); - break; - case SnapToList: - s->setSnapPositionsX(toPositionList(m_snapxlist, m_snapxfirst->minimum(), m_snapxfirst->maximum())); - m_snapoverlay->set(Qt::Horizontal, toPositionList(m_snapxlist, m_snapxfirst->minimum(), m_snapxfirst->maximum())); - break; - } - switch (m_snapymode) { - case NoSnap: - s->setSnapPositionsY(QList<qreal>()); - m_snapoverlay->clear(Qt::Vertical); - break; - case SnapToInterval: - s->setSnapPositionsY(m_snapyfirst->value(), m_snapystep->value()); - m_snapoverlay->set(Qt::Vertical, m_snapyfirst->value(), m_snapystep->value()); - break; - case SnapToList: - s->setSnapPositionsY(toPositionList(m_snapylist, m_snapyfirst->minimum(), m_snapyfirst->maximum())); - m_snapoverlay->set(Qt::Vertical, toPositionList(m_snapylist, m_snapyfirst->minimum(), m_snapyfirst->maximum())); - break; - } -} - -QList<qreal> SettingsWidget::toPositionList(QPlainTextEdit *list, int vmin, int vmax) -{ - QList<qreal> snaps; - QList<QTextEdit::ExtraSelection> extrasel; - QTextEdit::ExtraSelection uline; - uline.format.setUnderlineColor(Qt::red); - uline.format.setUnderlineStyle(QTextCharFormat::WaveUnderline); - int line = 0; - - foreach (const QString &str, list->toPlainText().split(QLatin1Char('\n'))) { - ++line; - if (str.isEmpty()) - continue; - bool ok = false; - double d = str.toDouble(&ok); - if (ok && d >= vmin && d <= vmax) { - snaps << d; - } else { - QTextEdit::ExtraSelection esel = uline; - esel.cursor = QTextCursor(list->document()->findBlockByLineNumber(line - 1)); - esel.cursor.select(QTextCursor::LineUnderCursor); - extrasel << esel; - } - } - list->setExtraSelections(extrasel); - return snaps; -} - -#include "settingswidget.moc" diff --git a/examples/scroller/plot/settingswidget.h b/examples/scroller/plot/settingswidget.h deleted file mode 100644 index fc0acff..0000000 --- a/examples/scroller/plot/settingswidget.h +++ /dev/null @@ -1,108 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2011 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. -** -** $QT_BEGIN_LICENSE:BSD$ -** You may use this file under the terms of the BSD license as follows: -** -** "Redistribution and use in source and binary forms, with or without -** modification, are permitted provided that the following conditions are -** met: -** * Redistributions of source code must retain the above copyright -** notice, this list of conditions and the following disclaimer. -** * Redistributions in binary form must reproduce the above copyright -** notice, this list of conditions and the following disclaimer in -** the documentation and/or other materials provided with the -** distribution. -** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor -** the names of its contributors may be used to endorse or promote -** products derived from this software without specific prior written -** permission. -** -** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#ifndef SETTINGSWIDGET_H -#define SETTINGSWIDGET_H - -#include <QScrollArea> - -QT_BEGIN_NAMESPACE -class QScroller; -class QGridLayout; -class QSpinBox; -class QComboBox; -class QCheckBox; -class QPlainTextEdit; -QT_END_NAMESPACE - -class MetricItemUpdater; -class SnapOverlay; - -class SettingsWidget : public QScrollArea -{ - Q_OBJECT - -public: - SettingsWidget(bool smallscreen = false); - - void setScroller(QWidget *widget); - -protected: - bool eventFilter(QObject *, QEvent *); - -private slots: - void scrollTo(); - void snapModeChanged(int); - void snapPositionsChanged(); - -private: - enum SnapMode { - NoSnap, - SnapToInterval, - SnapToList - }; - - void addToGrid(QGridLayout *grid, QWidget *label, int widgetCount, ...); - QList<qreal> toPositionList(QPlainTextEdit *list, int vmin, int vmax); - void updateScrollRanges(); - - QWidget *m_widget; - QSpinBox *m_scrollx, *m_scrolly, *m_scrolltime; - QList<MetricItemUpdater *> m_metrics; - - SnapMode m_snapxmode; - QComboBox *m_snapx; - QWidget *m_snapxinterval; - QPlainTextEdit *m_snapxlist; - QSpinBox *m_snapxfirst; - QSpinBox *m_snapxstep; - - SnapMode m_snapymode; - QComboBox *m_snapy; - QWidget *m_snapyinterval; - QPlainTextEdit *m_snapylist; - QSpinBox *m_snapyfirst; - QSpinBox *m_snapystep; - SnapOverlay *m_snapoverlay; - - bool m_smallscreen; -}; - -#endif diff --git a/examples/scroller/scroller.pro b/examples/scroller/scroller.pro deleted file mode 100644 index 9a9991a..0000000 --- a/examples/scroller/scroller.pro +++ /dev/null @@ -1,11 +0,0 @@ -TEMPLATE = subdirs -SUBDIRS = graphicsview - -contains(QT_CONFIG, webkit):SUBDIRS += plot wheel - -# install -sources.files = *.pro -sources.path = $$[QT_INSTALL_EXAMPLES]/scroller -INSTALLS += sources - -symbian: include($$QT_SOURCE_TREE/examples/symbianpkgrules.pri) diff --git a/examples/scroller/wheel/main.cpp b/examples/scroller/wheel/main.cpp deleted file mode 100644 index 4205baf..0000000 --- a/examples/scroller/wheel/main.cpp +++ /dev/null @@ -1,122 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2011 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. -** -** $QT_BEGIN_LICENSE:BSD$ -** You may use this file under the terms of the BSD license as follows: -** -** "Redistribution and use in source and binary forms, with or without -** modification, are permitted provided that the following conditions are -** met: -** * Redistributions of source code must retain the above copyright -** notice, this list of conditions and the following disclaimer. -** * Redistributions in binary form must reproduce the above copyright -** notice, this list of conditions and the following disclaimer in -** the documentation and/or other materials provided with the -** distribution. -** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor -** the names of its contributors may be used to endorse or promote -** products derived from this software without specific prior written -** permission. -** -** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include <QtGui> -#include <qmath.h> - -#include "wheelwidget.h" - -class MainWindow : public QMainWindow -{ - Q_OBJECT -public: - MainWindow(bool touch) - : QMainWindow() - { - makeSlotMachine(touch); - setCentralWidget(m_slotMachine); - } - - void makeSlotMachine(bool touch) - { - if (QApplication::desktop()->width() > 1000) { - QFont f = font(); - f.setPointSize(f.pointSize() * 2); - setFont(f); - } - - m_slotMachine = new QWidget(this); - QGridLayout *grid = new QGridLayout(m_slotMachine); - grid->setSpacing(20); - - QStringList colors; - colors << "Red" << "Magenta" << "Peach" << "Orange" << "Yellow" << "Citro" << "Green" << "Cyan" << "Blue" << "Violet"; - - m_wheel1 = new StringWheelWidget(touch); - m_wheel1->setItems( colors ); - grid->addWidget( m_wheel1, 0, 0 ); - - m_wheel2 = new StringWheelWidget(touch); - m_wheel2->setItems( colors ); - grid->addWidget( m_wheel2, 0, 1 ); - - m_wheel3 = new StringWheelWidget(touch); - m_wheel3->setItems( colors ); - grid->addWidget( m_wheel3, 0, 2 ); - - QPushButton *shakeButton = new QPushButton(tr("Shake")); - connect(shakeButton, SIGNAL(clicked()), this, SLOT(rotateRandom())); - - grid->addWidget( shakeButton, 1, 0, 1, 3 ); - } - -private slots: - void rotateRandom() - { - m_wheel1->scrollTo(m_wheel1->currentIndex() + (qrand() % 200)); - m_wheel2->scrollTo(m_wheel2->currentIndex() + (qrand() % 200)); - m_wheel3->scrollTo(m_wheel3->currentIndex() + (qrand() % 200)); - } - -private: - QWidget *m_slotMachine; - - StringWheelWidget *m_wheel1; - StringWheelWidget *m_wheel2; - StringWheelWidget *m_wheel3; -}; - -int main(int argc, char **argv) -{ - QApplication a(argc, argv); - bool touch = a.arguments().contains(QLatin1String("--touch")); - MainWindow mw(touch); -#ifdef Q_WS_S60 - mw.showMaximized(); -#else - mw.show(); -#endif -#ifdef Q_WS_MAC - mw.raise(); -#endif - return a.exec(); -} - -#include "main.moc" diff --git a/examples/scroller/wheel/wheel.pro b/examples/scroller/wheel/wheel.pro deleted file mode 100644 index 48fe171..0000000 --- a/examples/scroller/wheel/wheel.pro +++ /dev/null @@ -1,11 +0,0 @@ -HEADERS = wheelwidget.h -SOURCES = wheelwidget.cpp \ - main.cpp - -QT += webkit - -# install -target.path = $$[QT_INSTALL_EXAMPLES]/scroller/wheel -sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS wheel.pro -sources.path = $$[QT_INSTALL_EXAMPLES]/scroller/wheel -INSTALLS += target sources diff --git a/examples/scroller/wheel/wheelwidget.cpp b/examples/scroller/wheel/wheelwidget.cpp deleted file mode 100644 index 10eaefb..0000000 --- a/examples/scroller/wheel/wheelwidget.cpp +++ /dev/null @@ -1,275 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2011 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. -** -** $QT_BEGIN_LICENSE:BSD$ -** You may use this file under the terms of the BSD license as follows: -** -** "Redistribution and use in source and binary forms, with or without -** modification, are permitted provided that the following conditions are -** met: -** * Redistributions of source code must retain the above copyright -** notice, this list of conditions and the following disclaimer. -** * Redistributions in binary form must reproduce the above copyright -** notice, this list of conditions and the following disclaimer in -** the documentation and/or other materials provided with the -** distribution. -** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor -** the names of its contributors may be used to endorse or promote -** products derived from this software without specific prior written -** permission. -** -** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include <QtGui> - -#include "wheelwidget.h" - -#define WHEEL_SCROLL_OFFSET 50000.0 - -AbstractWheelWidget::AbstractWheelWidget(bool touch, QWidget *parent) - : QWidget(parent) - , m_currentItem(0) - , m_itemOffset(0) -{ -// ![0] - QScroller::grabGesture(this, touch ? QScroller::TouchGesture : QScroller::LeftMouseButtonGesture); -// ![0] -} - -AbstractWheelWidget::~AbstractWheelWidget() -{ } - -int AbstractWheelWidget::currentIndex() const -{ - return m_currentItem; -} - -void AbstractWheelWidget::setCurrentIndex(int index) -{ - if (index >= 0 && index < itemCount()) { - m_currentItem = index; - m_itemOffset = 0; - update(); - } -} - -bool AbstractWheelWidget::event(QEvent *e) -{ - switch (e->type()) { -// ![1] - case QEvent::ScrollPrepare: - { - // We set the snap positions as late as possible so that we are sure - // we get the correct itemHeight - QScroller *scroller = QScroller::scroller(this); - scroller->setSnapPositionsY( WHEEL_SCROLL_OFFSET, itemHeight() ); - - QScrollPrepareEvent *se = static_cast<QScrollPrepareEvent *>(e); - se->setViewportSize(QSizeF(size())); - // we claim a huge scrolling area and a huge content position and - // hope that the user doesn't notice that the scroll area is restricted - se->setContentPosRange(QRectF(0.0, 0.0, 0.0, WHEEL_SCROLL_OFFSET * 2)); - se->setContentPos(QPointF(0.0, WHEEL_SCROLL_OFFSET + m_currentItem * itemHeight() + m_itemOffset)); - se->accept(); - return true; - } -// ![1] -// ![2] - case QEvent::Scroll: - { - QScrollEvent *se = static_cast<QScrollEvent *>(e); - - qreal y = se->contentPos().y(); - int iy = y - WHEEL_SCROLL_OFFSET; - int ih = itemHeight(); - -// ![2] - - // -- calculate the current item position and offset and redraw the widget - int ic = itemCount(); - if (ic>0) { - m_currentItem = iy / ih % ic; - m_itemOffset = iy % ih; - - // take care when scrolling backwards. Modulo returns negative numbers - if (m_itemOffset < 0) { - m_itemOffset += ih; - m_currentItem--; - } - - if (m_currentItem < 0) - m_currentItem += ic; - } - // -- repaint - update(); - - se->accept(); - return true; - } - default: - return QWidget::event(e); - } - return true; -} - -void AbstractWheelWidget::paintEvent(QPaintEvent* event) -{ - Q_UNUSED( event ); - - // -- first calculate size and position. - int w = width(); - int h = height(); - - QPainter painter(this); - QPalette palette = QApplication::palette(); - QPalette::ColorGroup colorGroup = isEnabled() ? QPalette::Active : QPalette::Disabled; - - // linear gradient brush - QLinearGradient grad(0.5, 0, 0.5, 1.0); - grad.setColorAt(0, palette.color(colorGroup, QPalette::ButtonText)); - grad.setColorAt(0.2, palette.color(colorGroup, QPalette::Button)); - grad.setColorAt(0.8, palette.color(colorGroup, QPalette::Button)); - grad.setColorAt(1.0, palette.color(colorGroup, QPalette::ButtonText)); - grad.setCoordinateMode( QGradient::ObjectBoundingMode ); - QBrush gBrush( grad ); - - // paint a border and background - painter.setPen(palette.color(colorGroup, QPalette::ButtonText)); - painter.setBrush(gBrush); - // painter.setBrushOrigin( QPointF( 0.0, 0.0 ) ); - painter.drawRect( 0, 0, w-1, h-1 ); - - // paint inner border - painter.setPen(palette.color(colorGroup, QPalette::Button)); - painter.setBrush(Qt::NoBrush); - painter.drawRect( 1, 1, w-3, h-3 ); - - // paint the items - painter.setClipRect( QRect( 3, 3, w-6, h-6 ) ); - painter.setPen(palette.color(colorGroup, QPalette::ButtonText)); - - int iH = itemHeight(); - int iC = itemCount(); - if (iC > 0) { - - m_itemOffset = m_itemOffset % iH; - - for (int i=-h/2/iH; i<=h/2/iH+1; i++) { - - int itemNum = m_currentItem + i; - while (itemNum < 0) - itemNum += iC; - while (itemNum >= iC) - itemNum -= iC; - - paintItem(&painter, itemNum, QRect(6, h/2 +i*iH - m_itemOffset - iH/2, w-6, iH )); - } - } - - // draw a transparent bar over the center - QColor highlight = palette.color(colorGroup, QPalette::Highlight); - highlight.setAlpha(150); - - QLinearGradient grad2(0.5, 0, 0.5, 1.0); - grad2.setColorAt(0, highlight); - grad2.setColorAt(1.0, highlight.lighter()); - grad2.setCoordinateMode( QGradient::ObjectBoundingMode ); - QBrush gBrush2( grad2 ); - - QLinearGradient grad3(0.5, 0, 0.5, 1.0); - grad3.setColorAt(0, highlight); - grad3.setColorAt(1.0, highlight.darker()); - grad3.setCoordinateMode( QGradient::ObjectBoundingMode ); - QBrush gBrush3( grad3 ); - - painter.fillRect( QRect( 0, h/2 - iH/2, w, iH/2 ), gBrush2 ); - painter.fillRect( QRect( 0, h/2, w, iH/2 ), gBrush3 ); -} - -/*! - Rotates the wheel widget to a given index. - You can also give an index greater than itemCount or less than zero in which - case the wheel widget will scroll in the given direction and end up with - (index % itemCount) -*/ -void AbstractWheelWidget::scrollTo(int index) -{ - QScroller *scroller = QScroller::scroller(this); - - scroller->scrollTo(QPointF(0, WHEEL_SCROLL_OFFSET + index * itemHeight()), 5000); -} - -/*! - \class StringWheelWidget - \brief The StringWheelWidget class is an implementation of the AbstractWheelWidget class that draws QStrings as items. - \sa AbstractWheelWidget -*/ - -StringWheelWidget::StringWheelWidget(bool touch) - : AbstractWheelWidget(touch) -{ } - -QStringList StringWheelWidget::items() const -{ - return m_items; -} - -void StringWheelWidget::setItems( const QStringList &items ) -{ - m_items = items; - if (m_currentItem >= items.count()) - m_currentItem = items.count()-1; - update(); -} - - -QSize StringWheelWidget::sizeHint() const -{ - // determine font size - QFontMetrics fm(font()); - - return QSize( fm.width("m") * 10 + 6, fm.height() * 7 + 6 ); -} - -QSize StringWheelWidget::minimumSizeHint() const -{ - QFontMetrics fm(font()); - - return QSize( fm.width("m") * 5 + 6, fm.height() * 3 + 6 ); -} - -void StringWheelWidget::paintItem(QPainter* painter, int index, const QRect &rect) -{ - painter->drawText(rect, Qt::AlignCenter, m_items.at(index)); -} - -int StringWheelWidget::itemHeight() const -{ - QFontMetrics fm(font()); - return fm.height(); -} - -int StringWheelWidget::itemCount() const -{ - return m_items.count(); -} - - diff --git a/examples/scroller/wheel/wheelwidget.h b/examples/scroller/wheel/wheelwidget.h deleted file mode 100644 index 96dcebf..0000000 --- a/examples/scroller/wheel/wheelwidget.h +++ /dev/null @@ -1,103 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2011 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. -** -** $QT_BEGIN_LICENSE:BSD$ -** You may use this file under the terms of the BSD license as follows: -** -** "Redistribution and use in source and binary forms, with or without -** modification, are permitted provided that the following conditions are -** met: -** * Redistributions of source code must retain the above copyright -** notice, this list of conditions and the following disclaimer. -** * Redistributions in binary form must reproduce the above copyright -** notice, this list of conditions and the following disclaimer in -** the documentation and/or other materials provided with the -** distribution. -** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor -** the names of its contributors may be used to endorse or promote -** products derived from this software without specific prior written -** permission. -** -** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#ifndef WHEELWIDGET_H -#define WHEELWIDGET_H - -#include <QWidget> -#include <QStringList> - -QT_BEGIN_NAMESPACE -class QPainter; -class QRect; -QT_END_NAMESPACE - -class AbstractWheelWidget : public QWidget { - Q_OBJECT - -public: - AbstractWheelWidget(bool touch, QWidget *parent = 0); - virtual ~AbstractWheelWidget(); - - int currentIndex() const; - void setCurrentIndex(int index); - - bool event(QEvent*); - void paintEvent(QPaintEvent *e); - virtual void paintItem(QPainter* painter, int index, const QRect &rect) = 0; - - virtual int itemHeight() const = 0; - virtual int itemCount() const = 0; - -public slots: - void scrollTo(int index); - -signals: - void stopped(int index); - -protected: - int m_currentItem; - int m_itemOffset; // 0-itemHeight() - qreal m_lastY; -}; - - -class StringWheelWidget : public AbstractWheelWidget { - Q_OBJECT - -public: - StringWheelWidget(bool touch); - - QStringList items() const; - void setItems( const QStringList &items ); - - QSize sizeHint() const; - QSize minimumSizeHint() const; - - void paintItem(QPainter* painter, int index, const QRect &rect); - - int itemHeight() const; - int itemCount() const; - -private: - QStringList m_items; -}; - -#endif // WHEELWIDGET_H |