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SystemMonitor: Invalidate ProcessModel indexes when necessary

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If the process table grows or shrinks, we need to invalidate all the
ProcessModel indexes. This is not great, but it's the most precise
invalidation we can do at the moment.
This commit is contained in:
Andreas Kling
2020-08-16 11:15:47 +02:00
parent 17992fbab7
commit b9ae937279
1 changed files with 4 additions and 1 deletions
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5
Applications/SystemMonitor/ProcessModel.cpp
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@@ -352,6 +352,7 @@ GUI::Variant ProcessModel::data(const GUI::ModelIndex& index, Role role) const
void ProcessModel::update()
{
auto previous_pid_count = m_pids.size();
auto all_processes = Core::ProcessStatisticsReader::get_all();
unsigned last_sum_times_scheduled = 0;
@@ -434,5 +435,7 @@ void ProcessModel::update()
if (on_cpu_info_change)
on_cpu_info_change(m_cpus);
did_update(GUI::Model::UpdateFlag::DontInvalidateIndexes);
// FIXME: This is a rather hackish way of invalidating indexes.
// It would be good if GUI::Model had a way to orchestrate removal/insertion while preserving indexes.
did_update(previous_pid_count == m_pids.size() ? GUI::Model::UpdateFlag::DontInvalidateIndexes : GUI::Model::UpdateFlag::InvalidateAllIndexes);
}