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Fix main window turns blank after restoring from tray (#15031)

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When restoring from tray icon, although the window manager shows qbt
window but qbt itself didn't handle the event correctly, i.e. the
`show()` was missing and thus qbt did nothing and the window is blank.
Note that at this point the `visible` property is `false`.
After invoking `show()` qbt will start showing the contents and also
fire another showEvent where `visible` property is `true` and here is where
qbt should handle preparations for the window.

Fix #9510.
This commit is contained in:
Chocobo1 2021-05-31 12:19:22 +08:00 committed by Vladimir Golovnev
parent 09089b2d33
commit eff465126e
1 changed files with 17 additions and 8 deletions
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25
src/gui/mainwindow.cpp
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@ -1120,17 +1120,26 @@ void MainWindow::on_actionStatistics_triggered()
void MainWindow::showEvent(QShowEvent *e)
{
qDebug("** Show Event **");
if (currentTabWidget() == m_transferListWidget)
m_propertiesWidget->loadDynamicData();
e->accept();
// Make sure the window is initially centered
if (!m_posInitialized)
if (isVisible())
{
move(Utils::Gui::screenCenter(this));
m_posInitialized = true;
// preparations before showing the window
if (currentTabWidget() == m_transferListWidget)
m_propertiesWidget->loadDynamicData();
// Make sure the window is initially centered
if (!m_posInitialized)
{
move(Utils::Gui::screenCenter(this));
m_posInitialized = true;
}
}
else
{
// to avoid blank screen when restoring from tray icon
show();
}
}