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111 lines
3.0 KiB
111 lines
3.0 KiB
/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2015 - ROLI Ltd.
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Permission is granted to use this software under the terms of either:
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a) the GPL v2 (or any later version)
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b) the Affero GPL v3
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Details of these licenses can be found at: www.gnu.org/licenses
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JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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------------------------------------------------------------------------------
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To release a closed-source product which uses JUCE, commercial licenses are
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available: visit www.juce.com for more information.
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==============================================================================
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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 (findColour (backgroundColourId).isOpaque());
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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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