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Diffstat (limited to 'examples/sensors/sensor_explorer/explorer.cpp')
| -rw-r--r-- | examples/sensors/sensor_explorer/explorer.cpp | 450 |
1 files changed, 0 insertions, 450 deletions
diff --git a/examples/sensors/sensor_explorer/explorer.cpp b/examples/sensors/sensor_explorer/explorer.cpp deleted file mode 100644 index e8fd3f5c..00000000 --- a/examples/sensors/sensor_explorer/explorer.cpp +++ /dev/null @@ -1,450 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). -** All rights reserved. -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the QtSensors module 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 "explorer.h" -#include <QTimer> -#include <QDebug> -#include <qsensor.h> -#include <QMetaObject> -#include <QMetaProperty> - -Explorer::Explorer(QWidget *parent) - : QMainWindow(parent) - , m_sensor(0) - , ignoreItemChanged(false) -{ - ui.setupUi(this); -#ifdef MAEMO5 - ui.label->hide(); -#endif - // Clear out example data from the .ui file - ui.sensors->clear(); - clearSensorProperties(); - clearReading(); - - // Force types to be registered - (void)QSensor::sensorTypes(); - // Listen for changes to the registered types - QSensor *sensor = new QSensor(QByteArray(), this); - connect(sensor, SIGNAL(availableSensorsChanged()), this, SLOT(loadSensors())); -} - -Explorer::~Explorer() -{ -} - -void Explorer::loadSensors() -{ - qDebug() << "Explorer::loadSensors"; - - // Clear out anything that's in there now - ui.sensors->clear(); - - foreach (const QByteArray &type, QSensor::sensorTypes()) { - qDebug() << "Found type" << type; - foreach (const QByteArray &identifier, QSensor::sensorsForType(type)) { - qDebug() << "Found identifier" << identifier; - // Don't put in sensors we can't connect to - QSensor sensor(type); - sensor.setIdentifier(identifier); - if (!sensor.connectToBackend()) { - qDebug() << "Couldn't connect to" << identifier; - continue; - } - - qDebug() << "Adding identifier" << identifier; - QTreeWidgetItem *item = new QTreeWidgetItem(QStringList() << QString::fromLatin1(identifier)); - item->setData(0, Qt::UserRole, QString::fromLatin1(type)); - ui.sensors->addTopLevelItem(item); - } - } - - if (ui.sensors->topLevelItemCount() == 0) { - QTreeWidgetItem *item = new QTreeWidgetItem(QStringList() << tr("No Sensors Found")); - item->setData(0, Qt::UserRole, QString()); - ui.sensors->addTopLevelItem(item); - } - - ui.sensors->setCurrentItem(0); - ui.scrollArea->hide(); - - resizeSensors(); -} - -void Explorer::resizeSensors() -{ - ui.sensors->resizeColumnToContents(0); - int length = ui.sensors->header()->length() + 4; - ui.sensors->setFixedWidth(length); -} - -void Explorer::on_sensors_currentItemChanged() -{ - qDebug() << "Explorer::sensorSelected"; - - // Clear out anything that's in there now - if (m_sensor) { - delete m_sensor; - m_sensor = 0; - } - clearSensorProperties(); - clearReading(); - ui.scrollArea->hide(); - - // Check that we've selected an item - QTreeWidgetItem *item = ui.sensors->currentItem(); - if (!item) { - qWarning() << "Didn't select an item!"; - return; - } - - QByteArray type = item->data(0, Qt::UserRole).toString().toLatin1(); - QByteArray identifier = item->data(0, Qt::DisplayRole).toString().toLatin1(); - - if (type.isEmpty()) { - // Uh oh, there aren't any sensors. - // The user has clicked the dummy list entry so just ignore it. - return; - } - - // Connect to the sensor so we can probe it - m_sensor = new QSensor(type, this); - connect(m_sensor, SIGNAL(readingChanged()), this, SLOT(sensor_changed())); - m_sensor->setIdentifier(identifier); - if (!m_sensor->connectToBackend()) { - delete m_sensor; - m_sensor = 0; - qWarning() << "Can't connect to the sensor!"; - return; - } - - ui.scrollArea->show(); - loadSensorProperties(); - loadReading(); - - adjustTableColumns(ui.sensorprops); - adjustTableColumns(ui.reading); - QTimer::singleShot(100, this, SLOT(adjustSizes())); -} - -void Explorer::clearReading() -{ - ui.reading->setRowCount(0); -} - -void Explorer::loadReading() -{ - // Probe the reading using Qt's meta-object facilities - QSensorReading *reading = m_sensor->reading(); - const QMetaObject *mo = reading->metaObject(); - int firstProperty = QSensorReading::staticMetaObject.propertyOffset(); - - ui.reading->setRowCount(mo->propertyCount() - firstProperty); - - for (int i = firstProperty; i < mo->propertyCount(); ++i) { - int row = i - firstProperty; - QTableWidgetItem *index; - if (row == 0) - // timestamp is not available via index - index = new QTableWidgetItem(QLatin1String("N/A")); - else - index = new QTableWidgetItem(QVariant(row - 1).toString()); - QTableWidgetItem *prop = new QTableWidgetItem(mo->property(i).name()); - QString typeName = QLatin1String(mo->property(i).typeName()); - int crap = typeName.lastIndexOf("::"); - if (crap != -1) - typeName = typeName.mid(crap + 2); - QTableWidgetItem *type = new QTableWidgetItem(typeName); - QTableWidgetItem *value = new QTableWidgetItem(); - - index->setFlags(value->flags() ^ Qt::ItemIsEditable); - prop->setFlags(value->flags() ^ Qt::ItemIsEditable); - type->setFlags(value->flags() ^ Qt::ItemIsEditable); - value->setFlags(value->flags() ^ Qt::ItemIsEditable); - - ui.reading->setItem(row, 0, index); - ui.reading->setItem(row, 1, prop); - ui.reading->setItem(row, 2, type); - ui.reading->setItem(row, 3, value); - } -} - -void Explorer::clearSensorProperties() -{ - ui.sensorprops->setRowCount(0); -} - -void Explorer::loadSensorProperties() -{ - ignoreItemChanged = true; - - // Probe the sensor using Qt's meta-object facilities - const QMetaObject *mo = m_sensor->metaObject(); - int firstProperty = QSensor::staticMetaObject.propertyOffset(); - - int rows = mo->propertyCount() - firstProperty; - ui.sensorprops->setRowCount(rows); - - int offset = 0; - for (int i = firstProperty; i < mo->propertyCount(); ++i) { - int row = i - firstProperty - offset; - QLatin1String name(mo->property(i).name()); - if (name == "sensorid" || - //name == "type" || - name == "reading" || - name == "connected" || - name == "running" || - name == "supportsPolling") { - ++offset; - continue; - } - QTableWidgetItem *prop = new QTableWidgetItem(name); - QString typeName = QLatin1String(mo->property(i).typeName()); - int crap = typeName.lastIndexOf("::"); - if (crap != -1) - typeName = typeName.mid(crap + 2); - QTableWidgetItem *type = new QTableWidgetItem(typeName); - QVariant v = mo->property(i).read(m_sensor); - QString val; - if (typeName == "qrangelist") { - qrangelist rl = v.value<qrangelist>(); - QStringList out; - foreach (const qrange &r, rl) { - if (r.first == r.second) - out << QString("%1 Hz").arg(r.first); - else - out << QString("%1-%2 Hz").arg(r.first).arg(r.second); - } - val = out.join(", "); - } else if (typeName == "qoutputrangelist") { - qoutputrangelist rl = v.value<qoutputrangelist>(); - QStringList out; - foreach (const qoutputrange &r, rl) { - out << QString("(%1, %2) += %3").arg(r.minimum).arg(r.maximum).arg(r.accuracy); - } - val = out.join(", "); - } else { - val = v.toString(); - } - QTableWidgetItem *value = new QTableWidgetItem(val); - - prop->setFlags(value->flags() ^ Qt::ItemIsEditable); - type->setFlags(value->flags() ^ Qt::ItemIsEditable); - if (!mo->property(i).isWritable()) { - // clear the editable flag - value->setFlags(value->flags() ^ Qt::ItemIsEditable); - } - - ui.sensorprops->setItem(row, 0, prop); - ui.sensorprops->setItem(row, 1, type); - ui.sensorprops->setItem(row, 2, value); - } - - // We don't add all properties - ui.sensorprops->setRowCount(rows - offset); - - ignoreItemChanged = false; -} - -void Explorer::showEvent(QShowEvent *event) -{ - // Once we're visible, load the sensors - // (don't delay showing the UI while we load plugins, connect to backends, etc.) - QTimer::singleShot(0, this, SLOT(loadSensors())); - - QMainWindow::showEvent(event); -} - -// Resize columns to fit the space. -// This shouldn't be so hard! -void Explorer::adjustTableColumns(QTableWidget *table) -{ - if (table->rowCount() == 0) { - table->setFixedHeight(0); - return; - } - - // At least this is easy to do - table->resizeColumnsToContents(); - int length = table->verticalHeader()->length(); - length += (length / static_cast<qreal>(table->verticalHeader()->count())); // Add 1 more (the header itself) -#ifdef MAEMO5 - length += 10; // required for N900 UI -#endif - table->setFixedHeight(length); - - int columns = table->columnCount(); - QList<int> width; - int suggestedWidth = 0; - for (int i = 0; i < columns; ++i) { - int cwidth = table->columnWidth(i); - width << cwidth; - suggestedWidth += cwidth; - } - - int actualWidth = table->size().width(); - //qDebug() << "suggestedWidth" << suggestedWidth << "actualWidth" << actualWidth; - - // We only scale the columns up, we don't scale down - if (actualWidth <= suggestedWidth) - return; - - qreal multiplier = actualWidth / static_cast<qreal>(suggestedWidth); - int currentSpace = 4; - for (int i = 0; i < columns; ++i) { - width[i] = multiplier * width[i]; - currentSpace += width[i]; - } - - // It ends up too big due to cell decorations or something. - // Make things smaller one pixel at a time in round robin fashion until we're good. - int i = 0; - while (currentSpace > actualWidth) { - --width[i]; - --currentSpace; - i = (i + 1) % columns; - } - - for (int i = 0; i < columns; ++i) { - table->setColumnWidth(i, width[i]); - } - - table->setMinimumWidth(suggestedWidth); -} - -void Explorer::adjustSizes() -{ - adjustTableColumns(ui.reading); - adjustTableColumns(ui.sensorprops); -} - -void Explorer::resizeEvent(QResizeEvent *event) -{ - resizeSensors(); - adjustSizes(); - - QMainWindow::resizeEvent(event); -} - -void Explorer::on_start_clicked() -{ - m_sensor->start(); - QTimer::singleShot(0, this, SLOT(loadSensorProperties())); -} - -void Explorer::on_stop_clicked() -{ - m_sensor->stop(); - QTimer::singleShot(0, this, SLOT(loadSensorProperties())); -} - -void Explorer::sensor_changed() -{ - QSensorReading *reading = m_sensor->reading(); - filter(reading); -} - -bool Explorer::filter(QSensorReading *reading) -{ - const QMetaObject *mo = reading->metaObject(); - int firstProperty = QSensorReading::staticMetaObject.propertyOffset(); - - for (int i = firstProperty; i < mo->propertyCount(); ++i) { - int row = i - firstProperty; - QString typeName = QLatin1String(mo->property(i).typeName()); - int crap = typeName.lastIndexOf("::"); - if (crap != -1) - typeName = typeName.mid(crap + 2); - QLatin1String name(mo->property(i).name()); - QTableWidgetItem *value = ui.reading->item(row, 3); - QVariant val = mo->property(i).read(reading); - if (typeName == "qtimestamp") { - value->setText(QString("%1").arg(val.value<qtimestamp>())); - } else if (typeName == "LightLevel") { - QString text; - switch (val.toInt()) { - case 1: - text = "Dark"; - break; - case 2: - text = "Twilight"; - break; - case 3: - text = "Light"; - break; - case 4: - text = "Bright"; - break; - case 5: - text = "Sunny"; - break; - default: - text = "Undefined"; - break; - } - value->setText(text); - } else { - value->setText(val.toString()); - } - } - - adjustTableColumns(ui.reading); - //QTimer::singleShot(0, this, SLOT(adjustSizes())); - - return false; -} - -void Explorer::on_sensorprops_itemChanged(QTableWidgetItem *item) -{ - if (ignoreItemChanged) - return; - if (!(item->flags() & Qt::ItemIsEditable)) - return; - - int row = item->row(); - QString name = ui.sensorprops->item(row, 0)->text(); - QVariant value = item->text(); - - qDebug() << "setProperty" << name << value; - m_sensor->setProperty(name.toLatin1().constData(), QVariant(value)); - - QTimer::singleShot(0, this, SLOT(loadSensorProperties())); -} - |