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Location: cpp/openttd-patchpack/source/src/guitimer_func.h - annotation
r25213:cae9268da683
1.9 KiB
text/x-c
Cleanup: Remove unnecessary parameter of GetScrolledRowFromWidget()
Line height defaults to the resize height of the relevant widget, which is
set in all cases. Therefore it is not necessary to specify this value every time.
Additionally fixes scrolled padding for the framerate window.
Line height defaults to the resize height of the relevant widget, which is
set in all cases. Therefore it is not necessary to specify this value every time.
Additionally fixes scrolled padding for the framerate window.
r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 r23128:57a1ceae9616 | /*
* This file is part of OpenTTD.
* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
* OpenTTD 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. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file guitimer_func.h GUI Timers. */
#ifndef GUITIMER_FUNC_H
#define GUITIMER_FUNC_H
class GUITimer
{
protected:
uint timer;
uint interval;
public:
GUITimer() : timer(0), interval(0) { }
explicit GUITimer(uint interval) : timer(0), interval(interval) { }
inline bool HasElapsed() const
{
return this->interval == 0;
}
inline void SetInterval(uint interval)
{
this->timer = 0;
this->interval = interval;
}
/**
* Count how many times the interval has elapsed.
* Use to ensure a specific amount of events happen within a timeframe, e.g. for animation.
* @param delta Time since last test.
* @return Number of times the interval has elapsed.
*/
inline uint CountElapsed(uint delta)
{
if (this->interval == 0) return 0;
uint count = delta / this->interval;
if (this->timer + (delta % this->interval) >= this->interval) count++;
this->timer = (this->timer + delta) % this->interval;
return count;
}
/**
* Test if a timer has elapsed.
* Use to ensure an event happens only once within a timeframe, e.g. for window updates.
* @param delta Time since last test.
* @return True iff the timer has elapsed.
*/
inline bool Elapsed(uint delta)
{
if (this->CountElapsed(delta) == 0) return false;
this->SetInterval(0);
return true;
}
};
#endif /* GUITIMER_FUNC_H */
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