146 lines
		
	
	
	
		
			3.6 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			146 lines
		
	
	
	
		
			3.6 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#include "window/section_widget.h"
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#include <rpl/range.h>
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#include "mainwidget.h"
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#include "window/section_memento.h"
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#include "window/window_slide_animation.h"
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#include "window/themes/window_theme.h"
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#include "window/window_controller.h"
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namespace Window {
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AuthSession &AbstractSectionWidget::session() const {
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	return _controller->session();
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}
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SectionWidget::SectionWidget(
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	QWidget *parent,
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	not_null<Window::Controller*> controller)
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: AbstractSectionWidget(parent, controller) {
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}
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void SectionWidget::setGeometryWithTopMoved(
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		const QRect &newGeometry,
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		int topDelta) {
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	_topDelta = topDelta;
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	bool willBeResized = (size() != newGeometry.size());
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	if (geometry() != newGeometry) {
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		auto weak = make_weak(this);
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		setGeometry(newGeometry);
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		if (!weak) {
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			return;
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		}
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	}
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	if (!willBeResized) {
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		resizeEvent(nullptr);
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	}
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	_topDelta = 0;
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}
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void SectionWidget::showAnimated(
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		SlideDirection direction,
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		const SectionSlideParams ¶ms) {
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	if (_showAnimation) return;
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	showChildren();
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	auto myContentCache = grabForShowAnimation(params);
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	hideChildren();
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	showAnimatedHook(params);
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	_showAnimation = std::make_unique<SlideAnimation>();
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	_showAnimation->setDirection(direction);
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	_showAnimation->setRepaintCallback([this] { update(); });
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	_showAnimation->setFinishedCallback([this] { showFinished(); });
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	_showAnimation->setPixmaps(
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		params.oldContentCache,
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		myContentCache);
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	_showAnimation->setTopBarShadow(params.withTopBarShadow);
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	_showAnimation->setWithFade(params.withFade);
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	_showAnimation->start();
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	show();
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}
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std::unique_ptr<SectionMemento> SectionWidget::createMemento() {
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	return nullptr;
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}
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void SectionWidget::showFast() {
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	show();
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	showFinished();
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}
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void SectionWidget::PaintBackground(not_null<QWidget*> widget, QRect clip) {
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	Painter p(widget);
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	auto fill = QRect(0, 0, widget->width(), App::main()->height());
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	if (const auto color = Window::Theme::Background()->colorForFill()) {
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		p.fillRect(fill, *color);
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		return;
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	}
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	auto fromy = App::main()->backgroundFromY();
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	auto x = 0, y = 0;
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	auto cached = App::main()->cachedBackground(fill, x, y);
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	if (cached.isNull()) {
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		if (Window::Theme::Background()->tile()) {
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			auto &pix = Window::Theme::Background()->pixmapForTiled();
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			auto left = clip.left();
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			auto top = clip.top();
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			auto right = clip.left() + clip.width();
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			auto bottom = clip.top() + clip.height();
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			auto w = pix.width() / cRetinaFactor();
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			auto h = pix.height() / cRetinaFactor();
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			auto sx = qFloor(left / w);
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			auto sy = qFloor((top - fromy) / h);
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			auto cx = qCeil(right / w);
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			auto cy = qCeil((bottom - fromy) / h);
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			for (auto i = sx; i < cx; ++i) {
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				for (auto j = sy; j < cy; ++j) {
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					p.drawPixmap(QPointF(i * w, fromy + j * h), pix);
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				}
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			}
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		} else {
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			PainterHighQualityEnabler hq(p);
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			auto &pix = Window::Theme::Background()->pixmap();
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			QRect to, from;
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			Window::Theme::ComputeBackgroundRects(fill, pix.size(), to, from);
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			to.moveTop(to.top() + fromy);
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			p.drawPixmap(to, pix, from);
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		}
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	} else {
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		p.drawPixmap(x, fromy + y, cached);
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	}
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}
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void SectionWidget::paintEvent(QPaintEvent *e) {
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	if (_showAnimation) {
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		Painter p(this);
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		_showAnimation->paintContents(p, e->rect());
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	}
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}
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void SectionWidget::showFinished() {
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	_showAnimation.reset();
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	if (isHidden()) return;
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	showChildren();
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	showFinishedHook();
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	setInnerFocus();
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}
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rpl::producer<int> SectionWidget::desiredHeight() const {
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	return rpl::single(height());
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}
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SectionWidget::~SectionWidget() = default;
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} // namespace Window
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