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Hack to work around layout flickering when adding new timeline items

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This commit is contained in:
Konstantinos Sideris 2018-01-16 22:24:23 +02:00
parent 7792ca7149
commit 26540bd120
2 changed files with 16 additions and 3 deletions
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14
include/timeline/TimelineView.h
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@ -123,6 +123,17 @@ protected:
private: private:
using TimelineEvent = mtx::events::collections::TimelineEvents; using TimelineEvent = mtx::events::collections::TimelineEvents;
//! HACK: Fixing layout flickering when adding to the bottom
//! of the timeline.
void pushTimelineItem(TimelineItem *item)
{
item->hide();
QTimer::singleShot(0, this, [=]() {
scroll_layout_->addWidget(item);
item->show();
});
};
void init(); void init();
void addTimelineItem(TimelineItem *item, TimelineDirection direction); void addTimelineItem(TimelineItem *item, TimelineDirection direction);
void updateLastSender(const QString &user_id, TimelineDirection direction); void updateLastSender(const QString &user_id, TimelineDirection direction);
@ -229,7 +240,8 @@ TimelineView::addUserMessage(const QString &url,
TimelineItem *view_item = TimelineItem *view_item =
new TimelineItem(widget, local_user_, with_sender, scroll_widget_); new TimelineItem(widget, local_user_, with_sender, scroll_widget_);
scroll_layout_->addWidget(view_item);
pushTimelineItem(view_item);
lastMessageDirection_ = TimelineDirection::Bottom; lastMessageDirection_ = TimelineDirection::Bottom;

5
src/timeline/TimelineView.cc
View file

@ -433,7 +433,7 @@ TimelineView::addTimelineItem(TimelineItem *item, TimelineDirection direction)
addDateSeparator(newDate, lastItemPosition); addDateSeparator(newDate, lastItemPosition);
} }
scroll_layout_->addWidget(item); pushTimelineItem(item);
} else { } else {
// The first item (position 0) is a stretch widget that pushes // The first item (position 0) is a stretch widget that pushes
// the widgets to the bottom of the page. // the widgets to the bottom of the page.
@ -479,7 +479,8 @@ TimelineView::addUserMessage(mtx::events::MessageType ty, const QString &body)
TimelineItem *view_item = TimelineItem *view_item =
new TimelineItem(ty, local_user_, body, with_sender, scroll_widget_); new TimelineItem(ty, local_user_, body, with_sender, scroll_widget_);
scroll_layout_->addWidget(view_item);
pushTimelineItem(view_item);
lastMessageDirection_ = TimelineDirection::Bottom; lastMessageDirection_ = TimelineDirection::Bottom;