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authorOlivier Goffart <ogoffart@woboq.com>2015-11-11 15:32:29 +0100
committerOlivier Goffart (Woboq GmbH) <ogoffart@woboq.com>2015-11-13 15:05:12 +0000
commitd6b45853f5d45b5922c93f947d8909855f19a8b9 (patch)
tree91416c841af7681c550a87a1b47d5569c43f1430 /src/gui/image
parent45be40540801bc760b09d731958ba646e4eb946c (diff)
Make qt_findAtNxFile return the source device pixel ratio
QTextImageHandler needs it. And QQuickImageBase will also need it. Change-Id: Ica5d17519c4c6c06e25bab7d2b1d3733f4058425 Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@theqtcompany.com>
Diffstat (limited to 'src/gui/image')
-rw-r--r--src/gui/image/qicon.cpp11
-rw-r--r--src/gui/image/qicon.h3
2 files changed, 11 insertions, 3 deletions
diff --git a/src/gui/image/qicon.cpp b/src/gui/image/qicon.cpp
index af3af516db..b2d9ed18f5 100644
--- a/src/gui/image/qicon.cpp
+++ b/src/gui/image/qicon.cpp
@@ -1378,8 +1378,12 @@ QDebug operator<<(QDebug dbg, const QIcon &i)
Given base foo.png and a target dpr of 2.5, this function will look for
foo@3x.png, then foo@2x, then fall back to foo.png if not found.
+
+ \a sourceDevicePixelRatio will be set to the value of N if the argument is
+ a non-null pointer
*/
-QString qt_findAtNxFile(const QString &baseFileName, qreal targetDevicePixelRatio)
+QString qt_findAtNxFile(const QString &baseFileName, qreal targetDevicePixelRatio,
+ qreal *sourceDevicePixelRatio)
{
if (targetDevicePixelRatio <= 1.0)
return baseFileName;
@@ -1397,8 +1401,11 @@ QString qt_findAtNxFile(const QString &baseFileName, qreal targetDevicePixelRati
for (int n = qCeil(targetDevicePixelRatio); n > 1; --n) {
QString atNxfileName = baseFileName;
atNxfileName.insert(dotIndex, atNx.arg(n));
- if (QFile::exists(atNxfileName))
+ if (QFile::exists(atNxfileName)) {
+ if (sourceDevicePixelRatio)
+ *sourceDevicePixelRatio = n;
return atNxfileName;
+ }
}
return baseFileName;
diff --git a/src/gui/image/qicon.h b/src/gui/image/qicon.h
index 8c72f54629..9ed7336502 100644
--- a/src/gui/image/qicon.h
+++ b/src/gui/image/qicon.h
@@ -139,7 +139,8 @@ Q_GUI_EXPORT QDataStream &operator>>(QDataStream &, QIcon &);
Q_GUI_EXPORT QDebug operator<<(QDebug dbg, const QIcon &);
#endif
-Q_GUI_EXPORT QString qt_findAtNxFile(const QString &baseFileName, qreal targetDevicePixelRatio);
+Q_GUI_EXPORT QString qt_findAtNxFile(const QString &baseFileName, qreal targetDevicePixelRatio,
+ qreal *sourceDevicePixelRatio = Q_NULLPTR);
QT_END_NAMESPACE