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[escher/scroll_view] Add arrow indicators

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This commit is contained in:
Ruben Dashyan
2019-01-24 15:52:07 +01:00
committed by EmilieNumworks
parent 1e958717fb
commit 1beb8ca98f
4 changed files with 89 additions and 0 deletions
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32
escher/src/scroll_view.cpp
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@@ -175,6 +175,38 @@ void ScrollView::Decorator::layoutIndicators(KDSize content, KDPoint offset, KDS
));
}
ScrollView::DecoratorV2::DecoratorV2() :
m_topArrow(ScrollViewArrow::Side::Top),
m_rightArrow(ScrollViewArrow::Side::Right),
m_bottomArrow(ScrollViewArrow::Side::Bottom),
m_leftArrow(ScrollViewArrow::Side::Left)
{
}
void ScrollView::DecoratorV2::layoutIndicators(KDSize content, KDPoint offset, KDSize frame) {
KDSize arrowSize = KDFont::LargeFont->glyphSize();
KDCoordinate topArrowFrameBreadth = arrowSize.height() * m_topArrow.update(0 < offset.y());
KDCoordinate rightArrowFrameBreadth = arrowSize.width() * m_rightArrow.update(offset.x() + frame.width() < content.width());
KDCoordinate bottomArrowFrameBreadth = arrowSize.height() * m_bottomArrow.update(offset.y() + frame.height() < content.height());
KDCoordinate leftArrowFrameBreadth = arrowSize.width() * m_leftArrow.update(0 < offset.x());
m_topArrow.setFrame(KDRect(
0, 0,
frame.width(), topArrowFrameBreadth
));
m_rightArrow.setFrame(KDRect(
frame.width() - rightArrowFrameBreadth, 0,
rightArrowFrameBreadth, frame.height()
));
m_bottomArrow.setFrame(KDRect(
0, frame.height() - bottomArrowFrameBreadth,
frame.width(), bottomArrowFrameBreadth
));
m_leftArrow.setFrame(KDRect(
0, 0,
leftArrowFrameBreadth, frame.height()
));
}
#if ESCHER_VIEW_LOGGING
const char * ScrollView::className() const {
return "ScrollView";