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/*
==============================================================================
This file is part of the JUCE library.
Copyright (c) 2015 - ROLI 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.
==============================================================================
*/
ProgressBar::ProgressBar (double& progress_)
: progress (progress_),
displayPercentage (true),
lastCallbackTime (0)
{
currentValue = jlimit (0.0, 1.0, progress);
}
ProgressBar::~ProgressBar()
{
}
//==============================================================================
void ProgressBar::setPercentageDisplay (const bool shouldDisplayPercentage)
{
displayPercentage = shouldDisplayPercentage;
repaint();
}
void ProgressBar::setTextToDisplay (const String& text)
{
displayPercentage = false;
displayedMessage = text;
}
void ProgressBar::lookAndFeelChanged()
{
setOpaque (findColour (backgroundColourId).isOpaque());
}
void ProgressBar::colourChanged()
{
lookAndFeelChanged();
}
void ProgressBar::paint (Graphics& g)
{
String text;
if (displayPercentage)
{
if (currentValue >= 0 && currentValue <= 1.0)
text << roundToInt (currentValue * 100.0) << '%';
}
else
{
text = displayedMessage;
}
getLookAndFeel().drawProgressBar (g, *this,
getWidth(), getHeight(),
currentValue, text);
}
void ProgressBar::visibilityChanged()
{
if (isVisible())
startTimer (30);
else
stopTimer();
}
void ProgressBar::timerCallback()
{
double newProgress = progress;
const uint32 now = Time::getMillisecondCounter();
const int timeSinceLastCallback = (int) (now - lastCallbackTime);
lastCallbackTime = now;
if (currentValue != newProgress
|| newProgress < 0 || newProgress >= 1.0
|| currentMessage != displayedMessage)
{
if (currentValue < newProgress
&& newProgress >= 0 && newProgress < 1.0
&& currentValue >= 0 && currentValue < 1.0)
{
newProgress = jmin (currentValue + 0.0008 * timeSinceLastCallback,
newProgress);
}
currentValue = newProgress;
currentMessage = displayedMessage;
repaint();
}
}
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