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/****************************************************************************
*
* (c) 2009-2016 QGROUNDCONTROL PROJECT <http://www.qgroundcontrol.org>
*
* QGroundControl is licensed according to the terms in the file
* COPYING.md in the root of the source code directory.
*
****************************************************************************/
/**
* @file
* @brief Image Provider
*
* @author Gus Grubba <mavlink@grubba.com>
*
*/
#include "QGCImageProvider.h"
#include <QPainter>
#include <QFont>
QGCImageProvider::QGCImageProvider(QGCApplication *app, QGCToolbox* toolbox)
: QGCTool(app, toolbox)
, QQuickImageProvider(QQmlImageProviderBase::Image)
{
}
QGCImageProvider::~QGCImageProvider()
{
}
void QGCImageProvider::setToolbox(QGCToolbox *toolbox)
{
QGCTool::setToolbox(toolbox);
//-- Dummy temporary image until something comes along
_pImage = QImage(320, 240, QImage::Format_RGBA8888);
_pImage.fill(Qt::black);
QPainter painter(&_pImage);
QFont f = painter.font();
f.setPixelSize(20);
painter.setFont(f);
painter.setPen(Qt::white);
painter.drawText(QRectF(0, 0, 320, 240), Qt::AlignCenter, "Waiting...");
}
QImage QGCImageProvider::requestImage(const QString & /* image url with vehicle id*/, QSize *, const QSize &)
{
/*
The QML side will request an image using a special URL, which we've registered as QGCImages.
The URL follows this format (or anything you want to make out of it after the "QGCImages" part):
"image://QGCImages/vvv/iii"
Where:
vvv: Some vehicle id
iii: An auto incremented index (which forces the Item to reload the image)
The image index is incremented each time a new image arrives. A signal is emitted and the QML side
updates its contents automatically.
Image {
source: "image://QGCImages/" + _activeVehicle.id + "/" + _activeVehicle.flowImageIndex
width: parent.width * 0.5
height: width * 0.75
cache: false
anchors.centerIn: parent
fillMode: Image.PreserveAspectFit
}
For now, we don't even look at the URL. This will have to be fixed if we're to support multiple
vehicles transmitting flow images.
*/
return _pImage;
}
void QGCImageProvider::setImage(QImage* pImage, int /* vehicle id*/)
{
_pImage = pImage->mirrored();
}