39 lines
1.1 KiB
C++
39 lines
1.1 KiB
C++
/*
|
|
This file is part of Telegram Desktop,
|
|
the official desktop application for the Telegram messaging service.
|
|
|
|
For license and copyright information please follow this link:
|
|
https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
|
|
*/
|
|
#include "ui/effects/shake_animation.h"
|
|
|
|
#include "styles/style_basic.h"
|
|
|
|
namespace Ui {
|
|
|
|
Fn<void(float64)> DefaultShakeCallback(Fn<void(int)> applyShift) {
|
|
constexpr auto kShiftProgress = 6;
|
|
constexpr auto kSegmentsCount = 5;
|
|
return [=, applyShift = std::move(applyShift)](float64 value) {
|
|
const auto fullProgress = value * kShiftProgress;
|
|
const auto segment = std::clamp(
|
|
int(std::floor(fullProgress)),
|
|
0,
|
|
kSegmentsCount);
|
|
const auto part = fullProgress - segment;
|
|
const auto from = (segment == 0)
|
|
? 0.
|
|
: (segment == 1 || segment == 3 || segment == 5)
|
|
? 1.
|
|
: -1.;
|
|
const auto to = (segment == 0 || segment == 2 || segment == 4)
|
|
? 1.
|
|
: (segment == 1 || segment == 3)
|
|
? -1.
|
|
: 0.;
|
|
const auto shift = from * (1. - part) + to * part;
|
|
applyShift(int(base::SafeRound(shift * st::shakeShift)));
|
|
};
|
|
}
|
|
|
|
} // namespace Ui
|