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Fix gifts list loading both ways.

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This commit is contained in:
John Preston 2024-09-24 11:04:36 +04:00
parent 52afd3d5a8
commit c022a1c838
1 changed files with 39 additions and 24 deletions
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63
Telegram/SourceFiles/info/peer_gifts/info_peer_gifts_widget.cpp
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@ -64,7 +64,7 @@ private:
};
struct View {
std::unique_ptr<GiftButton> button;
Api::UserStarGift gift;
int entry = 0;
};
void visibleTopBottomUpdated(
@ -181,9 +181,11 @@ void InnerWidget::validateButtons() {
if (!_perRow) {
return;
}
const auto padding = st::giftBoxPadding;
const auto vskip = padding.bottom();
const auto row = _single.height() + st::giftBoxGiftSkip.y();
const auto fromRow = _visibleFrom / row;
const auto tillRow = (_visibleTill + row - 1) / row;
const auto fromRow = std::max(_visibleFrom - vskip, 0) / row;
const auto tillRow = (_visibleTill - vskip + row - 1) / row;
Assert(tillRow >= fromRow);
if (_viewsFromRow == fromRow
&& _viewsTillRow == tillRow
@ -194,44 +196,57 @@ void InnerWidget::validateButtons() {
_viewsTillRow = tillRow;
_viewsForWidth = width();
const auto padding = st::giftBoxPadding;
const auto available = _viewsForWidth - padding.left() - padding.right();
const auto skipw = st::giftBoxGiftSkip.x();
const auto fullw = _perRow * (_single.width() + skipw) - skipw;
const auto left = padding.left() + (available - fullw) / 2;
const auto oneh = _single.height() + st::giftBoxGiftSkip.y();
auto x = left;
auto y = padding.bottom();
auto entry = 0;
auto y = vskip + fromRow * oneh;
auto views = std::vector<View>();
views.reserve((tillRow - fromRow) * _perRow);
const auto add = [&](int index) {
const auto already = ranges::find(_views, index, &View::entry);
if (already != end(_views)) {
views.push_back(base::take(*already));
return;
}
const auto &descriptor = _entries[index].descriptor;
const auto unused = ranges::find_if(_views, [&](const View &v) {
return v.button
&& ((v.entry < fromRow * _perRow)
|| (v.entry >= tillRow * _perRow));
});
if (unused != end(_views)) {
views.push_back(base::take(*unused));
views.back().button->setDescriptor(descriptor);
views.back().entry = index;
return;
}
auto button = std::make_unique<GiftButton>(this, &_delegate);
button->setDescriptor(descriptor);
button->show();
views.push_back({
.button = std::move(button),
.entry = index,
});
};
for (auto j = fromRow; j != tillRow; ++j) {
for (auto i = 0; i != _perRow; ++i) {
const auto index = j * _perRow + i;
if (index >= _entries.size()) {
break;
}
const auto &descriptor = _entries[index].descriptor;
if (entry < _views.size()) {
_views[entry].button->setDescriptor(descriptor);
} else {
auto button = std::make_unique<GiftButton>(this, &_delegate);
button->setDescriptor(descriptor);
_views.push_back({
.button = std::move(button),
.gift = _entries[index].gift,
});
}
_views[entry].button->show();
_views[entry].button->setGeometry(
add(index);
views.back().button->setGeometry(
QRect(QPoint(x, y), _single),
_delegate.buttonExtend());
++entry;
x += _single.width() + skipw;
}
x = left;
y += _single.height() + st::giftBoxGiftSkip.y();
}
for (auto k = entry; k != int(_views.size()); ++k) {
_views[k].button->hide();
y += oneh;
}
std::swap(_views, views);
}
int InnerWidget::resizeGetHeight(int width) {