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dexed/JuceLibraryCode/modules/juce_gui_basics/windows/juce_ThreadWithProgressWind...

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/*
==============================================================================
This file is part of the JUCE library.
Copyright (c) 2013 - Raw Material Software Ltd.
Permission is granted to use this software under the terms of either:
a) the GPL v2 (or any later version)
b) the Affero GPL v3
Details of these licenses can be found at: www.gnu.org/licenses
JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
------------------------------------------------------------------------------
To release a closed-source product which uses JUCE, commercial licenses are
available: visit www.juce.com for more information.
==============================================================================
*/
ThreadWithProgressWindow::ThreadWithProgressWindow (const String& title,
const bool hasProgressBar,
const bool hasCancelButton,
const int timeOutMsWhenCancelling_,
const String& cancelButtonText,
Component* componentToCentreAround)
: Thread ("Juce Progress Window"),
progress (0.0),
timeOutMsWhenCancelling (timeOutMsWhenCancelling_)
{
alertWindow = LookAndFeel::getDefaultLookAndFeel()
.createAlertWindow (title, String::empty, cancelButtonText,
String::empty, String::empty,
AlertWindow::NoIcon, hasCancelButton ? 1 : 0,
componentToCentreAround);
// if there are no buttons, we won't allow the user to interrupt the thread.
alertWindow->setEscapeKeyCancels (false);
if (hasProgressBar)
alertWindow->addProgressBarComponent (progress);
}
ThreadWithProgressWindow::~ThreadWithProgressWindow()
{
stopThread (timeOutMsWhenCancelling);
}
#if JUCE_MODAL_LOOPS_PERMITTED
bool ThreadWithProgressWindow::runThread (const int priority)
{
jassert (MessageManager::getInstance()->isThisTheMessageThread());
startThread (priority);
startTimer (100);
{
const ScopedLock sl (messageLock);
alertWindow->setMessage (message);
}
const bool finishedNaturally = alertWindow->runModalLoop() != 0;
stopThread (timeOutMsWhenCancelling);
alertWindow->setVisible (false);
return finishedNaturally;
}
#endif
void ThreadWithProgressWindow::setProgress (const double newProgress)
{
progress = newProgress;
}
void ThreadWithProgressWindow::setStatusMessage (const String& newStatusMessage)
{
const ScopedLock sl (messageLock);
message = newStatusMessage;
}
void ThreadWithProgressWindow::timerCallback()
{
if (! isThreadRunning())
{
// thread has finished normally..
alertWindow->exitModalState (1);
alertWindow->setVisible (false);
}
else
{
const ScopedLock sl (messageLock);
alertWindow->setMessage (message);
}
}