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UI: Add functions for executing funcs without blocking

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Adds functions for executing functions within separate threads without
blocking the user interface, or by blocking the user interface with a
dialog box.
This commit is contained in:
jp9000 2019-02-06 13:22:59 -08:00
parent 74cda9a2cc
commit a0eab1a2ad
2 changed files with 46 additions and 0 deletions
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40
UI/qt-wrappers.cpp
View file

@ -223,3 +223,43 @@ QThread *CreateQThread(std::function<void()> func)
{
return new QuickThread(func);
}
void ExecuteFuncSafeBlock(std::function<void()> func)
{
QEventLoop eventLoop;
auto wait = [&] ()
{
func();
QMetaObject::invokeMethod(&eventLoop, "quit",
Qt::QueuedConnection);
};
QScopedPointer<QThread> thread(CreateQThread(wait));
thread->start();
eventLoop.exec();
thread->wait();
}
void ExecuteFuncSafeBlockMsgBox(
std::function<void()> func,
const QString &title,
const QString &text)
{
QMessageBox dlg;
dlg.setWindowFlags(dlg.windowFlags() & ~Qt::WindowCloseButtonHint);
dlg.setWindowTitle(title);
dlg.setText(text);
dlg.setStandardButtons(0);
auto wait = [&] ()
{
func();
QMetaObject::invokeMethod(&dlg, "accept", Qt::QueuedConnection);
};
QScopedPointer<QThread> thread(CreateQThread(wait));
thread->start();
dlg.exec();
thread->wait();
}

6
UI/qt-wrappers.hpp
View file

@ -67,6 +67,12 @@ QDataStream &operator>>(QDataStream &in, OBSSceneItem &si);
QThread *CreateQThread(std::function<void()> func);
void ExecuteFuncSafeBlock(std::function<void()> func);
void ExecuteFuncSafeBlockMsgBox(
std::function<void()> func,
const QString &title,
const QString &text);
class SignalBlocker {
QWidget *widget;
bool blocked;