123 lines
2.8 KiB
C++
123 lines
2.8 KiB
C++
// This file is part of Desktop App Toolkit,
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// a set of libraries for developing nice desktop applications.
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//
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// For license and copyright information please follow this link:
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// https://github.com/desktop-app/legal/blob/master/LEGAL
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//
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#include "ui/effects/animation_value.h"
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#include "ui/painter.h"
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#include <QtCore/QtMath> // M_PI
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namespace anim {
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namespace {
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rpl::variable<bool> AnimationsDisabled = false;
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int SlowMultiplierMinusOne/* = 0*/;
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} // namespace
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transition linear = [](const float64 &delta, const float64 &dt) {
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Expects(!std::isnan(delta));
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Expects(!std::isnan(dt));
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const auto result = delta * dt;
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Ensures(!std::isnan(result));
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return result;
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};
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transition sineInOut = [](const float64 &delta, const float64 &dt) {
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return -(delta / 2) * (cos(M_PI * dt) - 1);
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};
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transition halfSine = [](const float64 &delta, const float64 &dt) {
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return delta * sin(M_PI * dt / 2);
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};
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transition easeOutBack = [](const float64 &delta, const float64 &dt) {
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static constexpr auto s = 1.70158;
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const float64 t = dt - 1;
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return delta * (t * t * ((s + 1) * t + s) + 1);
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};
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transition easeInCirc = [](const float64 &delta, const float64 &dt) {
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return -delta * (sqrt(1 - dt * dt) - 1);
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};
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transition easeOutCirc = [](const float64 &delta, const float64 &dt) {
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const float64 t = dt - 1;
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return delta * sqrt(1 - t * t);
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};
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transition easeInCubic = [](const float64 &delta, const float64 &dt) {
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return delta * dt * dt * dt;
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};
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transition easeOutCubic = [](const float64 &delta, const float64 &dt) {
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const float64 t = dt - 1;
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return delta * (t * t * t + 1);
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};
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transition easeInQuint = [](const float64 &delta, const float64 &dt) {
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const float64 t2 = dt * dt;
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return delta * t2 * t2 * dt;
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};
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transition easeOutQuint = [](const float64 &delta, const float64 &dt) {
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const float64 t = dt - 1, t2 = t * t;
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return delta * (t2 * t2 * t + 1);
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};
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rpl::producer<bool> Disables() {
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return AnimationsDisabled.value();
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};
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bool Disabled() {
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return AnimationsDisabled.current();
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}
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void SetDisabled(bool disabled) {
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AnimationsDisabled = disabled;
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}
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int SlowMultiplier() {
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return (SlowMultiplierMinusOne + 1);
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}
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void SetSlowMultiplier(int multiplier) {
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Expects(multiplier > 0);
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SlowMultiplierMinusOne = multiplier - 1;
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}
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void DrawStaticLoading(
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QPainter &p,
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QRectF rect,
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float64 stroke,
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QPen pen,
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QBrush brush) {
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PainterHighQualityEnabler hq(p);
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p.setBrush(brush);
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pen.setWidthF(stroke);
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pen.setCapStyle(Qt::RoundCap);
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pen.setJoinStyle(Qt::RoundJoin);
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p.setPen(pen);
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p.drawEllipse(rect);
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const auto center = rect.center();
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const auto first = QPointF(center.x(), rect.y() + 1.5 * stroke);
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const auto delta = center.y() - first.y();
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const auto second = QPointF(center.x() + delta * 2 / 3., center.y());
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if (delta > 0) {
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QPainterPath path;
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path.moveTo(first);
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path.lineTo(center);
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path.lineTo(second);
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p.drawPath(path);
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}
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}
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} // anim
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