120 lines
3.8 KiB
C++
120 lines
3.8 KiB
C++
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/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2020 - Raw Material Software Limited
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JUCE is an open source library subject to commercial or open-source
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licensing.
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By using JUCE, you agree to the terms of both the JUCE 6 End-User License
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Agreement and JUCE Privacy Policy (both effective as of the 16th June 2020).
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End User License Agreement: www.juce.com/juce-6-licence
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Privacy Policy: www.juce.com/juce-privacy-policy
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Or: You may also use this code under the terms of the GPL v3 (see
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www.gnu.org/licenses).
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JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
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EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
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DISCLAIMED.
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==============================================================================
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*/
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namespace juce
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{
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ThreadWithProgressWindow::ThreadWithProgressWindow (const String& title,
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const bool hasProgressBar,
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const bool hasCancelButton,
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const int cancellingTimeOutMs,
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const String& cancelButtonText,
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Component* componentToCentreAround)
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: Thread ("ThreadWithProgressWindow"),
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progress (0.0),
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timeOutMsWhenCancelling (cancellingTimeOutMs),
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wasCancelledByUser (false)
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{
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alertWindow.reset (LookAndFeel::getDefaultLookAndFeel()
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.createAlertWindow (title, {},
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cancelButtonText.isEmpty() ? TRANS("Cancel")
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: cancelButtonText,
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{}, {}, MessageBoxIconType::NoIcon, hasCancelButton ? 1 : 0,
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componentToCentreAround));
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// if there are no buttons, we won't allow the user to interrupt the thread.
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alertWindow->setEscapeKeyCancels (false);
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if (hasProgressBar)
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alertWindow->addProgressBarComponent (progress);
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}
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ThreadWithProgressWindow::~ThreadWithProgressWindow()
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{
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stopThread (timeOutMsWhenCancelling);
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}
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void ThreadWithProgressWindow::launchThread (int priority)
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{
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JUCE_ASSERT_MESSAGE_THREAD
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startThread (priority);
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startTimer (100);
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{
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const ScopedLock sl (messageLock);
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alertWindow->setMessage (message);
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}
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alertWindow->enterModalState();
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}
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void ThreadWithProgressWindow::setProgress (const double newProgress)
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{
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progress = newProgress;
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}
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void ThreadWithProgressWindow::setStatusMessage (const String& newStatusMessage)
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{
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const ScopedLock sl (messageLock);
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message = newStatusMessage;
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}
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void ThreadWithProgressWindow::timerCallback()
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{
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bool threadStillRunning = isThreadRunning();
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if (! (threadStillRunning && alertWindow->isCurrentlyModal (false)))
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{
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stopTimer();
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stopThread (timeOutMsWhenCancelling);
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alertWindow->exitModalState (1);
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alertWindow->setVisible (false);
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wasCancelledByUser = threadStillRunning;
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threadComplete (threadStillRunning);
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return; // (this may be deleted now)
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}
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const ScopedLock sl (messageLock);
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alertWindow->setMessage (message);
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}
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void ThreadWithProgressWindow::threadComplete (bool) {}
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#if JUCE_MODAL_LOOPS_PERMITTED
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bool ThreadWithProgressWindow::runThread (const int priority)
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{
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launchThread (priority);
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while (isTimerRunning())
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MessageManager::getInstance()->runDispatchLoopUntil (5);
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return ! wasCancelledByUser;
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}
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#endif
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} // namespace juce
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