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/***********************************************************************
* fprogressbar.cpp - Widget FProgressbar *
* *
* This file is part of the FINAL CUT widget toolkit *
* *
* Copyright 2014-2023 Markus Gans *
* *
* FINAL CUT is free software; you can redistribute it and/or modify *
* it under the terms of the GNU Lesser General Public License as *
* published by the Free Software Foundation; either version 3 of *
* the License, or (at your option) any later version. *
* *
* FINAL CUT 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 Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser General Public *
* License along with this program. If not, see *
* <http://www.gnu.org/licenses/>. *
***********************************************************************/
#include "final/fevent.h"
#include "final/fwidgetcolors.h"
#include "final/util/fstring.h"
#include "final/vterm/fcolorpair.h"
#include "final/widget/fprogressbar.h"
namespace finalcut
{
//----------------------------------------------------------------------
// class FProgressbar
//----------------------------------------------------------------------
// constructors and destructor
//----------------------------------------------------------------------
FProgressbar::FProgressbar(FWidget* parent)
: FWidget{parent}
{
init();
}
//----------------------------------------------------------------------
FProgressbar::~FProgressbar() noexcept = default; // destructor
// public methods of FProgressbar
//----------------------------------------------------------------------
void FProgressbar::setPercentage (std::size_t percentage_value)
{
if ( percentage_value <= percentage && percentage != NOT_SET )
return;
percentage = percentage_value;
if ( percentage > 100 )
percentage = 100;
if ( isShown() )
{
drawProgressLabel();
drawProgressBar();
}
}
//----------------------------------------------------------------------
void FProgressbar::setSize (const FSize& size, bool adjust)
{
// Sets the progress bar size
FWidget::setSize (size, adjust);
bar_length = size.getWidth();
}
//----------------------------------------------------------------------
void FProgressbar::setGeometry ( const FPoint& pos, const FSize& size
, bool adjust )
{
// Sets the progress bar geometry
FWidget::setGeometry (pos, size, adjust);
bar_length = size.getWidth();
}
//----------------------------------------------------------------------
auto FProgressbar::setShadow (bool enable) -> bool
{
return setWidgetShadow(this, enable);
}
//----------------------------------------------------------------------
void FProgressbar::hide()
{
FWidget::hide();
const auto& shadow = hasShadow() ? FSize(1, 1) : FSize(0, 0);
hideArea (getSize() + shadow);
print() << FPoint{int(getWidth()) - 4, 0}
<< " "; // hide percentage
}
//----------------------------------------------------------------------
void FProgressbar::reset()
{
percentage = NOT_SET;
if ( isShown() )
{
drawProgressLabel();
drawProgressBar();
}
}
// private methods of FProgressbar
//----------------------------------------------------------------------
void FProgressbar::init()
{
unsetFocusable();
setShadow();
}
//----------------------------------------------------------------------
void FProgressbar::draw()
{
drawProgressLabel();
drawProgressBar();
if ( getFlags().shadow.shadow )
drawShadow(this);
forceTerminalUpdate();
}
//----------------------------------------------------------------------
void FProgressbar::drawProgressLabel()
{
if ( FVTerm::getFOutput()->isMonochron() )
setReverse(true);
useParentWidgetColor();
print() << FPoint{int(getWidth()) - 3, 0};
if ( percentage > 100 )
print ("--- %");
else
printf ("%3zu %%", percentage);
if ( FVTerm::getFOutput()->isMonochron() )
setReverse(false);
}
//----------------------------------------------------------------------
void FProgressbar::drawProgressBar()
{
std::size_t len{0};
print() << FPoint{1, 1};
if ( percentage > 0 && percentage <= 100 )
len = drawProgressIndicator();
drawProgressBackground(len);
if ( FVTerm::getFOutput()->isMonochron() )
setReverse(false);
}
//----------------------------------------------------------------------
auto FProgressbar::drawProgressIndicator() -> std::size_t
{
// Draw the progress indicator
if ( FVTerm::getFOutput()->isMonochron() )
setReverse(true);
const auto& wc = getColorTheme();
const double length = double(bar_length * percentage) / 100;
auto len = std::size_t(trunc(length));
print() << FColorPair {wc->progressbar_fg, wc->progressbar_fg}
<< FString {len, UniChar::FullBlock}; // █
if ( len >= bar_length )
return len;
if ( std::size_t(round(length)) > len || FVTerm::getFOutput()->getMaxColor() < 16 )
{
if ( FVTerm::getFOutput()->isMonochron() )
setReverse(false);
print(' ');
if ( FVTerm::getFOutput()->isMonochron() )
setReverse(true);
}
else
{
print() << FColorPair{wc->progressbar_fg, wc->progressbar_bg}
<< UniChar::LeftHalfBlock; // ▌
}
len++;
return len;
}
//----------------------------------------------------------------------
void FProgressbar::drawProgressBackground (std::size_t len)
{
// Draw the progress background
const std::size_t bg_len = bar_length - len;
const auto& wc = getColorTheme();
setColor (wc->progressbar_fg, wc->progressbar_bg);
if ( FVTerm::getFOutput()->getMaxColor() < 16 )
print() << FString {bg_len, UniChar::MediumShade}; // ▒
else
print() << FString {bg_len, L' '};
}
} // namespace finalcut
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