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author | Titta Heikkala <titta.heikkala@digia.com> | 2014-07-01 07:10:00 +0300 |
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committer | Titta Heikkala <titta.heikkala@theqtcompany.com> | 2014-10-14 13:04:52 +0300 |
commit | c544258484ff4fd5d2b88402fbaa5d154b89a3a2 (patch) | |
tree | 7659625abb566dec55d3783ed820b928542d9b2b /examples/charts/audio/xyseriesiodevice.cpp | |
parent | 76339f714f088645e911cee65bdb66055fe029aa (diff) |
Qt Charts project file structure change
Charts repository structure is changed to follow the structure of a
Qt Add-On module. The task includes following changes:
- All macros and definitions named 'commercial' have been renamed.
- Compile errors related to QString and qSort usage have been fixed.
- Old demos are moved under examples. The QML examples now support only
Qt Quick 2.0, the support for Qt Quick 1 is removed.
- The QML examples with multiple views are updated so that they are
usable also with touch devices.
- Unnecessary version checks are removed from examples.
- The build stamp has been removed as it was only meant for Charts
development purposes and it's no longer needed. Also development
build related debug prints are removed as __DATE__ can't be used
for all OS thus it doesn't make much sense.
- Documentation structure has been updated based on the new module
structure. The raw HTML files have been removed. Demos are
combined to examples.
- Unnecessary .qdocinc files are no longer needed. The content is
moved to the corresponding .cpp files.
- The Charts widget designer plugin is updated according to the module
change.
- The test cases updated according to the project structure change.
Tests are added also for version 2.0.
- cmake modules generation is not needed with Qt 5.4 and Qt Charts
so it's disabled.
- The new module name and version are updated to the plugin.qmltypes
file.
Task-number: QTRD-2844, QTRD-3217, QTRD-3218, QTRD-3277, QTRD-3228,
QTRD-2526, QTRD-3233, QTRD-3222
Change-Id: Ib7fb26057cde710ffaf6bc780c8bf52a16f45160
Reviewed-by: Miikka Heikkinen <miikka.heikkinen@theqtcompany.com>
Diffstat (limited to 'examples/charts/audio/xyseriesiodevice.cpp')
-rw-r--r-- | examples/charts/audio/xyseriesiodevice.cpp | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/examples/charts/audio/xyseriesiodevice.cpp b/examples/charts/audio/xyseriesiodevice.cpp new file mode 100644 index 00000000..5440771f --- /dev/null +++ b/examples/charts/audio/xyseriesiodevice.cpp @@ -0,0 +1,57 @@ +/**************************************************************************** +** +** Copyright (C) 2014 Digia Plc +** All rights reserved. +** For any questions to Digia, please use contact form at http://qt.digia.com +** +** This file is part of the Qt Enterprise Charts Add-on. +** +** $QT_BEGIN_LICENSE$ +** Licensees holding valid Qt Enterprise licenses may use this file in +** accordance with the Qt Enterprise License Agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Digia. +** +** If you have questions regarding the use of this file, please use +** contact form at http://qt.digia.com +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "xyseriesiodevice.h" +#include <QXYSeries> + +XYSeriesIODevice::XYSeriesIODevice(QXYSeries * series, QObject *parent) : + QIODevice(parent), + m_series(series) +{ +} + +qint64 XYSeriesIODevice::readData(char * data, qint64 maxSize) +{ + Q_UNUSED(data) + Q_UNUSED(maxSize) + return -1; +} + +qint64 XYSeriesIODevice::writeData(const char * data, qint64 maxSize) +{ + qint64 range = 2000; + QList<QPointF> oldPoints = m_series->points(); + QList<QPointF> points; + int resolution = 4; + + if (oldPoints.count() < range) { + points = m_series->points(); + } else { + for (int i = maxSize/resolution; i < oldPoints.count(); i++) + points.append(QPointF(i - maxSize/resolution, oldPoints.at(i).y())); + } + + qint64 size = points.count(); + for (int k = 0; k < maxSize/resolution; k++) + points.append(QPointF(k + size, ((quint8)data[resolution * k] - 128)/128.0)); + + m_series->replace(points); + return maxSize; +} |