finalcut/examples/timer.cpp

116 lines
3.9 KiB
C++

/***********************************************************************
* timer.cpp - Using timer events *
* *
* This file is part of the Final Cut widget toolkit *
* *
* Copyright 2014-2018 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/final.h>
//----------------------------------------------------------------------
// class Timer
//----------------------------------------------------------------------
class Timer : public finalcut::FWidget
{
public:
// Constructor
explicit Timer (finalcut::FWidget* = nullptr);
protected:
// Method
virtual void draw();
// Event handlers
virtual void onTimer (finalcut::FTimerEvent*);
virtual void onAccel (finalcut::FAccelEvent*);
};
//----------------------------------------------------------------------
Timer::Timer (finalcut::FWidget* parent)
: finalcut::FWidget(parent)
{
addTimer (60000); // 1-minute timer
int id = addTimer (50); // 50-millisecond timer
addTimer (1000); // 1-second timer
delTimer (id);
addTimer (250); // 250-millisecond timer
wc.term_fg = finalcut::fc::Default;
wc.term_bg = finalcut::fc::Default;
}
//----------------------------------------------------------------------
void Timer::draw()
{
setPrintPos (1, 1);
print() << "---------------\n"
<< "Press Q to quit\n"
<< "---------------\n";
setAreaCursor (1, 4, true, vdesktop);
}
//----------------------------------------------------------------------
void Timer::onTimer (finalcut::FTimerEvent* ev)
{
bool is_last_line = false;
int timer_id = ev->getTimerId();
if ( getPrintPos().getY() == int(getDesktopHeight()) )
is_last_line = true;
setColor (FColor(1 + timer_id), finalcut::fc::Default);
print() << "Timer event, id " << timer_id << '\n';
if ( is_last_line )
scrollAreaForward (vdesktop);
setAreaCursor (1, getPrintPos().getY(), true, vdesktop);
}
//----------------------------------------------------------------------
void Timer::onAccel (finalcut::FAccelEvent* ev)
{
quit();
ev->accept();
}
//----------------------------------------------------------------------
// main part
//----------------------------------------------------------------------
int main (int argc, char* argv[])
{
// Create the application object
finalcut::FApplication app(argc, argv);
app.setForegroundColor(finalcut::fc::Default);
app.setBackgroundColor(finalcut::fc::Default);
// Create a timer object t
Timer t(&app);
t.addAccelerator('q');
// Set the timer object t as main widget
app.setMainWidget(&t);
// Show and start the application
t.show();
return app.exec();
}