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core: move renderSVGIcon() to qthelper.cpp

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The renderIcon() function was used by the thumbnailer to
render SVG-based icons. Move it to the global qthelper.cpp
so that it can also be used by the statistics module.
Add "SVG" to the name to emphasize what it is used for.

For consistency also move the renderSVGIconWidth() function,
which renders to a fixed width, to qthelper.cpp

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2020-12-28 14:43:56 +01:00 • committed by bstoeger
parent 4ca40bc152
commit 1d93926700
3 changed files with 33 additions and 28 deletions
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25
core/qthelper.cpp
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@ -36,7 +36,9 @@
#include <QFont>
#include <QApplication>
#include <QTextDocument>
#include <QPainter>
#include <QProgressDialog> // TODO: remove with convertThumbnails()
#include <QSvgRenderer>
#include <cstdarg>
#include <cstdint>
#ifdef Q_OS_UNIX
@ -1701,3 +1703,26 @@ extern "C" void emit_reset_signal()
{
emit diveListNotifier.dataReset();
}
QImage renderSVGIcon(const char *id, int size)
{
QImage res(size, size, QImage::Format_RGB32);
res.fill(Qt::white);
QSvgRenderer svg{QString(id)};
QPainter painter(&res);
svg.render(&painter);
return res;
}
// As renderSVGIcon(), but render to a fixed width and scale height accordingly
// and have a transparent background.
QImage renderSVGIconWidth(const char *id, int size)
{
QSvgRenderer svg{QString(id)};
QSize svgSize = svg.defaultSize();
QImage res(size, size * svgSize.height() / svgSize.width(), QImage::Format_ARGB32);
QPainter painter(&res);
svg.render(&painter);
return res;
}