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Add bare metal zoom handling to viewer

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This commit is contained in:
Felix Kauselmann
2015-12-02 15:38:58 +01:00
parent 3ad70c39fb
commit acc912a765
2 changed files with 19 additions and 10 deletions
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26
YACReader/viewer.cpp
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@ -38,7 +38,8 @@ restoreMagnifyingGlass(false),
drag(false),
numScrollSteps(22),
shouldOpenNext(false),
shouldOpenPrevious(false)
shouldOpenPrevious(false),
zoom(1)
{
translator = new YACReaderTranslator(this);
translator->hide();
@ -350,16 +351,21 @@ void Viewer::updateContentSize()
pagefit.scale(size(), Qt::KeepAspectRatio);
break;
}
//apply scaling
content->resize(pagefit);
//TODO: updtateContentSize should only scale the pixmap once
if(devicePixelRatio()>1)//only in retina display
{
QPixmap page = currentPage->scaled(content->width()*devicePixelRatio(), content->height()*devicePixelRatio(), Qt::KeepAspectRatio, Qt::SmoothTransformation);
page.setDevicePixelRatio(devicePixelRatio());
content->setPixmap(page);
}
if(zoom != 1)
{
pagefit.scale(pagefit.width()*zoom, 0, Qt::KeepAspectRatioByExpanding);
}
//apply scaling
content->resize(pagefit);
//TODO: updtateContentSize should only scale the pixmap once
if(devicePixelRatio()>1)//only in retina display
{
QPixmap page = currentPage->scaled(content->width()*devicePixelRatio(), content->height()*devicePixelRatio(), Qt::KeepAspectRatio, Qt::SmoothTransformation);
page.setDevicePixelRatio(devicePixelRatio());
content->setPixmap(page);
}
emit backgroundChanges();
}