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authorAndy Shaw <andy.shaw@qt.io>2018-02-01 20:59:58 +0100
committerAndy Shaw <andy.shaw@qt.io>2018-02-08 21:25:01 +0000
commitc48f4bde0044bd5b23af231f3639d0779ecbdb03 (patch)
tree8aa425ef2b68f8afd990cb0268173cc3644b86b8 /tests/manual/touchGraphicsItem
parent83b0abf928af6cd9f301e3367c439eca22aab323 (diff)
Set the ellipseDiameters back to the original size in QGraphicsView
When calling setSceneRect() on a QTouchPoint it will cause the ellipseDiameters to be changed, whereas this should not be affected by the scene rectangle as it should be in logical pixels. Also add a manual test for visually checking the ellipse diameters on various devices. Change-Id: I1ee9207cb1a63cfef33fe904594c73aba221af5c Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
Diffstat (limited to 'tests/manual/touchGraphicsItem')
-rw-r--r--tests/manual/touchGraphicsItem/main.cpp163
-rw-r--r--tests/manual/touchGraphicsItem/touchGraphicsItem.pro5
2 files changed, 168 insertions, 0 deletions
diff --git a/tests/manual/touchGraphicsItem/main.cpp b/tests/manual/touchGraphicsItem/main.cpp
new file mode 100644
index 0000000000..7afadc7edd
--- /dev/null
+++ b/tests/manual/touchGraphicsItem/main.cpp
@@ -0,0 +1,163 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** BSD License Usage
+** Alternatively, 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 The Qt Company Ltd 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 <QtWidgets>
+
+class TouchableItem : public QGraphicsRectItem
+{
+public:
+ TouchableItem() : QGraphicsRectItem(50, 50, 400, 400)
+ {
+ setBrush(Qt::yellow);
+ setAcceptTouchEvents(true);
+ }
+protected:
+ bool sceneEvent(QEvent *e)
+ {
+ const bool ret = QGraphicsRectItem::sceneEvent(e);
+ switch (e->type()) {
+ case QEvent::TouchBegin:
+ case QEvent::TouchUpdate:
+ case QEvent::TouchEnd:
+ {
+ QTouchEvent *te = static_cast<QTouchEvent *>(e);
+ for (const QTouchEvent::TouchPoint &tp : te->touchPoints()) {
+ QGraphicsEllipseItem *diameterItem = nullptr;
+ QSizeF ellipse = tp.ellipseDiameters();
+ if (ellipse.isNull()) {
+ ellipse = QSizeF(5, 5);
+ } else {
+ diameterItem = new QGraphicsEllipseItem(QRectF(tp.pos().x() - ellipse.width() / 2, tp.pos().y() - ellipse.height() / 2,
+ ellipse.width(), ellipse.height()), this);
+ diameterItem->setPen(QPen(Qt::red));
+ diameterItem->setBrush(QBrush(Qt::red));
+ if (ellipse.width() > qreal(2) && ellipse.height() > qreal(2))
+ ellipse.scale(ellipse.width() - 2, ellipse.height() - 2, Qt::IgnoreAspectRatio);
+ }
+ QGraphicsItem *parent = diameterItem ? static_cast<QGraphicsItem *>(diameterItem) : static_cast<QGraphicsItem *>(this);
+ QGraphicsEllipseItem *ellipseItem = new QGraphicsEllipseItem(QRectF(tp.pos().x() - ellipse.width() / 2,
+ tp.pos().y() - ellipse.height() / 2,
+ ellipse.width(), ellipse.height()), parent);
+ ellipseItem->setPen(QPen(Qt::blue));
+ ellipseItem->setBrush(QBrush(Qt::blue));
+ }
+ te->accept();
+ return true;
+ }
+ default:
+ break;
+ }
+ return ret;
+ }
+};
+
+int main(int argc, char **argv)
+{
+ QApplication a(argc, argv);
+ QMainWindow mw;
+ QWidget *w = new QWidget;
+ QVBoxLayout *vbox = new QVBoxLayout;
+ vbox->addWidget(new QLabel("The blue ellipses should indicate touch point contact patches"));
+ qDebug() << "Touch devices:";
+ for (const QTouchDevice *device : QTouchDevice::devices()) {
+ QString result;
+ QTextStream str(&result);
+ str << (device->type() == QTouchDevice::TouchScreen ? "TouchScreen" : "TouchPad")
+ << " \"" << device->name() << "\", max " << device->maximumTouchPoints()
+ << " touch points, capabilities:";
+ const QTouchDevice::Capabilities capabilities = device->capabilities();
+ if (capabilities & QTouchDevice::Position)
+ str << " Position";
+ if (capabilities & QTouchDevice::Area)
+ str << " Area";
+ if (capabilities & QTouchDevice::Pressure)
+ str << " Pressure";
+ if (capabilities & QTouchDevice::Velocity)
+ str << " Velocity";
+ if (capabilities & QTouchDevice::RawPositions)
+ str << " RawPositions";
+ if (capabilities & QTouchDevice::NormalizedPosition)
+ str << " NormalizedPosition";
+ if (capabilities & QTouchDevice::MouseEmulation)
+ str << " MouseEmulation";
+ vbox->addWidget(new QLabel(result));
+ qDebug() << " " << result;
+ }
+ QGraphicsView *view = new QGraphicsView;
+ view->viewport()->setAttribute(Qt::WA_AcceptTouchEvents);
+ QGraphicsScene *scene = new QGraphicsScene(0, 0, 500, 500);
+ TouchableItem *touchableItem = new TouchableItem;
+ scene->addItem(touchableItem);
+ view->setScene(scene);
+ vbox->addWidget(view);
+ w->setLayout(vbox);
+ mw.setCentralWidget(w);
+ QMenu *menu = mw.menuBar()->addMenu("Menu");
+ QAction *clear = new QAction("Clear");
+ QObject::connect(clear, &QAction::triggered, [=]() {
+ qDeleteAll(touchableItem->childItems());
+ });
+ menu->addAction(clear);
+ QAction *ignoreTransform = new QAction("Ignore transformations");
+ QObject::connect(ignoreTransform, &QAction::triggered, [=]() {
+ view->scale(1.5, 1.5);
+ touchableItem->setFlag(QGraphicsItem::ItemIgnoresTransformations);
+ });
+ menu->addAction(ignoreTransform);
+ QAction *quit = new QAction("Quit");
+ quit->setShortcut(QKeySequence::Quit);
+ QObject::connect(quit, &QAction::triggered, &QApplication::quit);
+ menu->addAction(quit);
+ mw.show();
+
+ return a.exec();
+}
+
+
diff --git a/tests/manual/touchGraphicsItem/touchGraphicsItem.pro b/tests/manual/touchGraphicsItem/touchGraphicsItem.pro
new file mode 100644
index 0000000000..67799ce9c4
--- /dev/null
+++ b/tests/manual/touchGraphicsItem/touchGraphicsItem.pro
@@ -0,0 +1,5 @@
+QT+=widgets
+TEMPLATE = app
+TARGET = touchGraphicsItem
+INCLUDEPATH += .
+SOURCES += main.cpp