finalcut/src/fbusyindicator.cpp

127 lines
4.0 KiB
C++

/***********************************************************************
* fbusyindicator.cpp - Shows background activity *
* *
* This file is part of the Final Cut widget toolkit *
* *
* Copyright 2020 Markus Gans *
* *
* The 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. *
* *
* The 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/fbusyindicator.h"
namespace finalcut
{
//----------------------------------------------------------------------
// class FBusyIndicator
//----------------------------------------------------------------------
// constructors and destructor
//----------------------------------------------------------------------
FBusyIndicator::FBusyIndicator (FWidget* parent)
: FToolTip{parent}
{
init();
}
//----------------------------------------------------------------------
FBusyIndicator::~FBusyIndicator() // destructor
{ }
// public methods of FBusyIndicator
//----------------------------------------------------------------------
void FBusyIndicator::start()
{
running = true;
show();
updateTerminal();
flush();
addTimer(TIMER);
}
//----------------------------------------------------------------------
void FBusyIndicator::stop()
{
delOwnTimer();
running = false;
hide();
updateTerminal();
flush();
}
// private methods of FBusyIndicator
//----------------------------------------------------------------------
void FBusyIndicator::init()
{
FToolTip::hide();
createIndicatorText();
}
//----------------------------------------------------------------------
void FBusyIndicator::createIndicatorText()
{
FString line[4]{};
if ( FTerm::getEncoding() == fc::UTF8 )
{
const wchar_t (&p)[8] = uni_pattern;
line[0] << " " << p[7] << " " << p[0] << " \n";
line[1] << " " << p[6] << " " << p[1] << " \n";
line[2] << " " << p[5] << " " << p[2] << " \n";
line[3] << " " << p[4] << " " << p[3] << " ";
}
else
{
const char (&p)[8] = pattern;
line[0] << " " << p[7] << " " << p[0] << " \n";
line[1] << " " << p[6] << " " << p[1] << " \n";
line[2] << " " << p[5] << " " << p[2] << " \n";
line[3] << " " << p[4] << " " << p[3] << " ";
}
FString txt{line[0] + line[1] + line[2] + line[3]};
FToolTip::setText(txt);
}
//----------------------------------------------------------------------
void FBusyIndicator::onTimer (finalcut::FTimerEvent*)
{
// Rotate pattern
if ( FTerm::getEncoding() == fc::UTF8 )
{
const wchar_t last = uni_pattern[7];
std::memmove(uni_pattern + 1, uni_pattern , sizeof(wchar_t) * 7);
uni_pattern[0] = last;
}
else
{
const char last = pattern[7];
std::memmove(pattern + 1, pattern , sizeof(char) * 7);
pattern[0] = last;
}
// Redraw the rotated pattern
createIndicatorText();
redraw();
updateTerminal();
flush();
}
} // namespace finalcut