129 lines
		
	
	
	
		
			4.3 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			129 lines
		
	
	
	
		
			4.3 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 "settings/settings_layer.h"
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#include "settings/settings_inner_widget.h"
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#include "settings/settings_fixed_bar.h"
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#include "styles/style_settings.h"
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#include "styles/style_window.h"
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#include "styles/style_boxes.h"
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#include "ui/effects/widget_fade_wrap.h"
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#include "ui/widgets/scroll_area.h"
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#include "ui/widgets/buttons.h"
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#include "mainwindow.h"
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#include "mainwidget.h"
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#include "storage/localstorage.h"
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#include "boxes/confirm_box.h"
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#include "application.h"
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#include "core/file_utilities.h"
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#include "window/themes/window_theme.h"
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namespace Settings {
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Layer::Layer()
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: _scroll(this, st::settingsScroll)
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, _fixedBar(this)
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, _fixedBarClose(this, st::settingsFixedBarClose)
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, _fixedBarShadow(this, object_ptr<BoxLayerTitleShadow>(this)) {
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	_fixedBar->moveToLeft(0, st::boxRadius);
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	_fixedBarClose->moveToRight(0, 0);
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	_fixedBarShadow->entity()->resize(width(), st::lineWidth);
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	_fixedBarShadow->moveToLeft(0, _fixedBar->y() + _fixedBar->height());
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	_fixedBarShadow->hideFast();
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	_scroll->moveToLeft(0, st::settingsFixedBarHeight);
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	_scroll->scrollTopValue()
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		| rpl::map([](int scrollTop) { return scrollTop > 0; })
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		| rpl::distinct_until_changed()
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		| rpl::start([this](bool scrolled) {
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			_fixedBarShadow->toggleAnimated(scrolled);
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		}, lifetime());
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}
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void Layer::setCloseClickHandler(base::lambda<void()> callback) {
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	_fixedBarClose->setClickedCallback(std::move(callback));
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}
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void Layer::resizeToWidth(int newWidth, int newContentLeft) {
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	// Widget height depends on InnerWidget height, so we
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	// resize it here, not in the resizeEvent() handler.
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	_inner->resizeToWidth(newWidth, newContentLeft);
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	resizeUsingInnerHeight(newWidth, _inner->height());
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}
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void Layer::doSetInnerWidget(object_ptr<LayerInner> widget) {
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	_inner = _scroll->setOwnedWidget(std::move(widget));
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	_inner->heightValue()
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		| rpl::start([this](int innerHeight) {
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			resizeUsingInnerHeight(width(), innerHeight);
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		}, lifetime());
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}
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void Layer::paintEvent(QPaintEvent *e) {
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	Painter p(this);
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	auto clip = e->rect();
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	if (_roundedCorners) {
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		auto paintTopRounded = clip.intersects(QRect(0, 0, width(), st::boxRadius));
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		auto paintBottomRounded = clip.intersects(QRect(0, height() - st::boxRadius, width(), st::boxRadius));
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		if (paintTopRounded || paintBottomRounded) {
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			auto parts = RectPart::None | 0;
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			if (paintTopRounded) parts |= RectPart::FullTop;
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			if (paintBottomRounded) parts |= RectPart::FullBottom;
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			App::roundRect(p, rect(), st::boxBg, BoxCorners, nullptr, parts);
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		}
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		auto other = clip.intersected(QRect(0, st::boxRadius, width(), height() - 2 * st::boxRadius));
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		if (!other.isEmpty()) {
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			p.fillRect(other, st::boxBg);
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		}
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	} else {
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		p.fillRect(e->rect(), st::boxBg);
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	}
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}
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void Layer::resizeEvent(QResizeEvent *e) {
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	LayerWidget::resizeEvent(e);
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	if (!width() || !height()) {
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		return;
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	}
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	_fixedBar->resizeToWidth(width());
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	_fixedBar->moveToLeft(0, st::boxRadius);
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	_fixedBarClose->moveToRight(0, 0);
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	auto shadowTop = _fixedBar->y() + _fixedBar->height();
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	_fixedBarShadow->entity()->resize(width(), st::lineWidth);
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	_fixedBarShadow->moveToLeft(0, shadowTop);
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	auto scrollSize = QSize(width(), height() - shadowTop - (_roundedCorners ? st::boxRadius : 0));
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	if (_scroll->size() != scrollSize) {
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		_scroll->resize(scrollSize);
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	}
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	if (!_scroll->isHidden()) {
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		auto scrollTop = _scroll->scrollTop();
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		_inner->setVisibleTopBottom(scrollTop, scrollTop + _scroll->height());
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	}
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}
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void Layer::setTitle(const QString &title) {
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	_fixedBar->setText(title);
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}
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} // namespace Settings
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