165 lines
4 KiB
C++
165 lines
4 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop version of Telegram messaging app, see https://telegram.org
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Telegram Desktop is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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It is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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In addition, as a special exception, the copyright holders give permission
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to link the code of portions of this program with the OpenSSL library.
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Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
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Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
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*/
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#include "ui/wrap/slide_wrap.h"
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#include <rpl/combine.h>
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#include <range/v3/algorithm/find.hpp>
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namespace Ui {
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SlideWrap<RpWidget>::SlideWrap(
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QWidget *parent,
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object_ptr<RpWidget> &&child)
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: SlideWrap(
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parent,
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std::move(child),
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style::margins()) {
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}
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SlideWrap<RpWidget>::SlideWrap(
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QWidget *parent,
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const style::margins &padding)
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: SlideWrap(parent, nullptr, padding) {
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}
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SlideWrap<RpWidget>::SlideWrap(
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QWidget *parent,
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object_ptr<RpWidget> &&child,
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const style::margins &padding)
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: Parent(
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parent,
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object_ptr<PaddingWrap<RpWidget>>(
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parent,
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std::move(child),
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padding))
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, _duration(st::slideWrapDuration) {
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}
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SlideWrap<RpWidget> *SlideWrap<RpWidget>::setDuration(int duration) {
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_duration = duration;
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return this;
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}
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SlideWrap<RpWidget> *SlideWrap<RpWidget>::toggle(
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bool shown,
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anim::type animated) {
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auto animate = (animated == anim::type::normal) && _duration;
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auto changed = (_toggled != shown);
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if (changed) {
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_toggled = shown;
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if (animate) {
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_animation.start(
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[this] { animationStep(); },
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_toggled ? 0. : 1.,
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_toggled ? 1. : 0.,
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_duration,
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anim::linear);
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}
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}
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if (animate) {
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animationStep();
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} else {
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finishAnimating();
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}
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if (changed) {
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_toggledChanged.fire_copy(_toggled);
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}
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return this;
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}
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SlideWrap<RpWidget> *SlideWrap<RpWidget>::finishAnimating() {
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_animation.finish();
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animationStep();
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return this;
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}
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SlideWrap<RpWidget> *SlideWrap<RpWidget>::toggleOn(
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rpl::producer<bool> &&shown) {
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std::move(shown)
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| rpl::start_with_next([this](bool shown) {
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toggle(shown, anim::type::normal);
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}, lifetime());
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finishAnimating();
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return this;
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}
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void SlideWrap<RpWidget>::animationStep() {
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auto newWidth = width();
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if (auto weak = wrapped()) {
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auto margins = getMargins();
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weak->moveToLeft(margins.left(), margins.top());
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newWidth = weak->width();
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}
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auto current = _animation.current(_toggled ? 1. : 0.);
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auto newHeight = wrapped()
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? (_animation.animating()
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? anim::interpolate(0, wrapped()->heightNoMargins(), current)
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: (_toggled ? wrapped()->height() : 0))
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: 0;
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if (newWidth != width() || newHeight != height()) {
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resize(newWidth, newHeight);
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}
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auto shouldBeHidden = !_toggled && !_animation.animating();
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if (shouldBeHidden != isHidden()) {
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setVisible(!shouldBeHidden);
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if (shouldBeHidden) {
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myEnsureResized(this);
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}
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}
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}
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QMargins SlideWrap<RpWidget>::getMargins() const {
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auto result = wrapped()->getMargins();
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return (animating() || !_toggled)
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? QMargins(result.left(), 0, result.right(), 0)
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: result;
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}
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int SlideWrap<RpWidget>::resizeGetHeight(int newWidth) {
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if (wrapped()) {
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wrapped()->resizeToWidth(newWidth);
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}
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return heightNoMargins();
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}
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void SlideWrap<RpWidget>::wrappedSizeUpdated(QSize size) {
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if (_animation.animating()) {
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animationStep();
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} else if (_toggled) {
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resize(size);
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}
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}
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rpl::producer<bool> MultiSlideTracker::atLeastOneShownValue() const {
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auto shown = std::vector<rpl::producer<bool>>();
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shown.reserve(_widgets.size());
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for (auto &widget : _widgets) {
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shown.push_back(widget->toggledValue());
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}
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return rpl::combine(
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std::move(shown),
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[](const std::vector<bool> &values) {
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return ranges::find(values, true) != values.end();
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});
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}
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} // namespace Ui
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