119 lines
3.0 KiB
C++
119 lines
3.0 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2017 - ROLI Ltd.
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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 5 End-User License
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Agreement and JUCE 5 Privacy Policy (both updated and effective as of the
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27th April 2017).
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End User License Agreement: www.juce.com/juce-5-licence
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Privacy Policy: www.juce.com/juce-5-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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ProgressBar::ProgressBar (double& progress_)
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: progress (progress_),
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displayPercentage (true),
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lastCallbackTime (0)
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{
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currentValue = jlimit (0.0, 1.0, progress);
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}
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ProgressBar::~ProgressBar()
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{
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}
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//==============================================================================
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void ProgressBar::setPercentageDisplay (const bool shouldDisplayPercentage)
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{
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displayPercentage = shouldDisplayPercentage;
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repaint();
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}
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void ProgressBar::setTextToDisplay (const String& text)
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{
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displayPercentage = false;
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displayedMessage = text;
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}
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void ProgressBar::lookAndFeelChanged()
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{
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setOpaque (getLookAndFeel().isProgressBarOpaque (*this));
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}
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void ProgressBar::colourChanged()
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{
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lookAndFeelChanged();
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}
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void ProgressBar::paint (Graphics& g)
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{
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String text;
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if (displayPercentage)
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{
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if (currentValue >= 0 && currentValue <= 1.0)
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text << roundToInt (currentValue * 100.0) << '%';
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}
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else
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{
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text = displayedMessage;
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}
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getLookAndFeel().drawProgressBar (g, *this,
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getWidth(), getHeight(),
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currentValue, text);
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}
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void ProgressBar::visibilityChanged()
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{
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if (isVisible())
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startTimer (30);
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else
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stopTimer();
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}
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void ProgressBar::timerCallback()
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{
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double newProgress = progress;
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const uint32 now = Time::getMillisecondCounter();
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const int timeSinceLastCallback = (int) (now - lastCallbackTime);
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lastCallbackTime = now;
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if (currentValue != newProgress
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|| newProgress < 0 || newProgress >= 1.0
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|| currentMessage != displayedMessage)
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{
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if (currentValue < newProgress
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&& newProgress >= 0 && newProgress < 1.0
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&& currentValue >= 0 && currentValue < 1.0)
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{
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newProgress = jmin (currentValue + 0.0008 * timeSinceLastCallback,
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newProgress);
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}
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currentValue = newProgress;
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currentMessage = displayedMessage;
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repaint();
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}
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}
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} // namespace juce
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