QImage QgsMapRendererParallelJob::renderedImage()
{
if ( mStatus == RenderingLayers )
return composeImage( mSettings, mLayerJobs );
else
return mFinalImage; // when rendering labels or idle
}
void QgsMapRendererParallelJob::renderLayersFinished()
{
Q_ASSERT( mStatus == RenderingLayers );
// compose final image
mFinalImage = composeImage( mSettings, mLayerJobs );
logRenderingTime( mLayerJobs );
cleanupJobs( mLayerJobs );
QgsDebugMsg( "PARALLEL layers finished" );
if ( mSettings.testFlag( QgsMapSettings::DrawLabeling ) && !mLabelingRenderContext.renderingStopped() )
{
mStatus = RenderingLabels;
connect( &mLabelingFutureWatcher, SIGNAL( finished() ), this, SLOT( renderingFinished() ) );
// now start rendering of labeling!
mLabelingFuture = QtConcurrent::run( renderLabelsStatic, this );
mLabelingFutureWatcher.setFuture( mLabelingFuture );
}
else
{
renderingFinished();
}
}
DImg InsertTextWidget::makeInsertText()
{
int orgW = d->iface->originalSize().width();
int orgH = d->iface->originalSize().height();
float ratioW = (float)orgW/(float)d->w;
float ratioH = (float)orgH/(float)d->h;
int x, y;
if (d->textRect.isValid())
{
// convert from widget to image coordinates, then to original size
x = qRound((d->textRect.x() - d->rect.x()) * ratioW);
y = qRound((d->textRect.y() - d->rect.y()) * ratioH);
}
else
{
x = -1;
y = -1;
}
// Get original image
DImg image = d->iface->original()->copy();
int borderWidth = qMax(1, qRound(ratioW));
// compose and draw result on image
composeImage(&image, nullptr, x, y,
d->textFont, d->textFont.pointSizeF(),
d->textRotation, d->textColor, d->textOpacity,
d->alignMode, d->textString, d->textTransparent, d->backgroundColor,
d->textBorder ? BORDER_NORMAL : BORDER_NONE, borderWidth, borderWidth);
return image;
}
void setImage(const QImage& src)
{
if ( first ) {
first = FALSE;
writeMHDR(src.size(),framerate);
}
composeImage(src,QPoint(0,0));
}
QImage QgsMapRendererSequentialJob::renderedImage()
{
if ( isActive() && mCache )
// this will allow immediate display of cached layers and at the same time updates of the layer being rendered
return composeImage( mSettings, mInternalJob->jobs() );
else
return mImage;
}
void InsertTextWidget::makePixmap()
{
int orgW = d->iface->originalSize().width();
int orgH = d->iface->originalSize().height();
float ratioW = (float)d->w / (float)orgW;
float ratioH = (float)d->h / (float)orgH;
int x, y;
if (d->textRect.isValid())
{
// convert from widget to image coordinates
x = d->textRect.x() - d->rect.x();
y = d->textRect.y() - d->rect.y();
}
else
{
x = -1;
y = -1;
}
// get preview image data
DImg image = d->iface->preview();
image.setIccProfile( d->iface->original()->getIccProfile() );
// paint pixmap for drawing this widget
// First, fill with background color
d->pixmap->fill(d->bgColor);
QPainter p(d->pixmap);
// Convert image to pixmap and draw it
QPixmap imagePixmap = d->iface->convertToPixmap(image);
p.drawPixmap(d->rect.x(), d->rect.y(),
imagePixmap, 0, 0, imagePixmap.width(), imagePixmap.height());
// prepare painter for use by compose image
p.setClipRect(d->rect);
p.translate(d->rect.x(), d->rect.y());
int borderWidth = qMax(1, qRound(ratioW));
// compose image and draw result directly on pixmap, with correct offset
QRect textRect = composeImage(&image, &p, x, y,
d->textFont, d->textFont.pointSizeF(),
d->textRotation, d->textColor, d->textOpacity,
d->alignMode, d->textString, d->textTransparent, d->backgroundColor,
d->textBorder ? BORDER_NORMAL : BORDER_SUPPORT, borderWidth, borderWidth,
(ratioW > ratioH) ? ratioW : ratioH);
p.end();
// store new text rectangle
// convert from image to widget coordinates
d->textRect.setX(textRect.x() + d->rect.x());
d->textRect.setY(textRect.y() + d->rect.y());
d->textRect.setSize(textRect.size());
}
void QgsMapRendererParallelJob::renderLabelsStatic( QgsMapRendererParallelJob *self )
{
LabelRenderJob &job = self->mLabelJob;
if ( !job.cached )
{
QTime labelTime;
labelTime.start();
QPainter painter;
if ( job.img )
{
job.img->fill( 0 );
painter.begin( job.img );
}
else
{
painter.begin( &self->mFinalImage );
}
// draw the labels!
try
{
drawLabeling( self->mSettings, job.context, self->mLabelingEngineV2.get(), &painter );
}
catch ( QgsException &e )
{
Q_UNUSED( e );
QgsDebugMsg( "Caught unhandled QgsException: " + e.what() );
}
catch ( std::exception &e )
{
Q_UNUSED( e );
QgsDebugMsg( "Caught unhandled std::exception: " + QString::fromAscii( e.what() ) );
}
catch ( ... )
{
QgsDebugMsg( "Caught unhandled unknown exception" );
}
painter.end();
job.renderingTime = labelTime.elapsed();
job.complete = true;
job.participatingLayers = _qgis_listRawToQPointer( self->mLabelingEngineV2->participatingLayers() );
if ( job.img )
{
self->mFinalImage = composeImage( self->mSettings, self->mLayerJobs, self->mLabelJob );
}
}
}
