mirror of
https://github.com/juce-framework/JUCE.git
synced 2026-01-10 23:44:24 +00:00
112 lines
3.2 KiB
C++
112 lines
3.2 KiB
C++
/*
|
|
==============================================================================
|
|
|
|
This file is part of the JUCE library - "Jules' Utility Class Extensions"
|
|
Copyright 2004-11 by Raw Material Software Ltd.
|
|
|
|
------------------------------------------------------------------------------
|
|
|
|
JUCE can be redistributed and/or modified under the terms of the GNU General
|
|
Public License (Version 2), as published by the Free Software Foundation.
|
|
A copy of the license is included in the JUCE distribution, or can be found
|
|
online 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.rawmaterialsoftware.com/juce 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();
|
|
}
|
|
}
|