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加入应用列表的翻页功能

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RigoLigoRLC
2021-09-06 20:19:52 +08:00
parent 4ede620e71
commit f5649a121f
7 changed files with 148 additions and 28 deletions
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26
gui/spkstretchlayout.cpp
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@@ -19,21 +19,22 @@ void SpkStretchLayout::addItem(QLayoutItem *item)
QSize SpkStretchLayout::sizeHint() const
{
int n = mItems.count();
auto minSize = mItems.isEmpty() ? QSize { 0, 0 } : mItems.first()->minimumSize();
QSize s { 200, 50 }; // s: Hint
if(n)
s = s.expandedTo(QSize { minSize.width(), minSize.height() * n });
return s + n * QSize(spacing(), spacing());
if(mItems.isEmpty())
return { 300, 300 };
auto w = geometry().width();
auto it = mItems.first();
int countPerLine = w / (it->minimumSize().width() + spacing());
int lines = ceil((double)mItems.size() / countPerLine);
auto h = static_cast<int>(it->minimumSize().height() * lines + spacing() * lines);
return { w, h };
}
QSize SpkStretchLayout::minimumSize() const
{
int n = mItems.count();
auto minSize = mItems.isEmpty() ? QSize { 0, 0 } : mItems.first()->minimumSize();
QSize s(minSize.width(), minSize.height() * n);
return s + n * QSize(spacing(), spacing());
// It works this way, but I honestly have no idea WHY IT WORKS
auto r = sizeHint();
r.setWidth(300);
return r;
}
int SpkStretchLayout::count() const
@@ -65,6 +66,9 @@ void SpkStretchLayout::setGeometry(const QRect &rect)
// Figure out how many at most can we squeeze into one line
int countPerLine = w / (itm->minimumSize().width() + spacing());
if(countPerLine < 1)
countPerLine = 1;
if(countPerLine >= mItems.size()) // All items fit in one line
size = itm->minimumSize();
// Won't fit in one line.