81 lines
		
	
	
	
		
			1.9 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			81 lines
		
	
	
	
		
			1.9 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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| 
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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 "ui/userpic_view.h"
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| 
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| #include "ui/empty_userpic.h"
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| #include "ui/image/image_prepare.h"
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| 
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| namespace Ui {
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| 
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| float64 ForumUserpicRadiusMultiplier() {
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| 	return 0.3;
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| }
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| 
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| bool PeerUserpicLoading(const PeerUserpicView &view) {
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| 	return view.cloud && view.cloud->isNull();
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| }
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| 
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| void ValidateUserpicCache(
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| 		PeerUserpicView &view,
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| 		const QImage *cloud,
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| 		const EmptyUserpic *empty,
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| 		int size,
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| 		bool forum) {
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| 	Expects(cloud != nullptr || empty != nullptr);
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| 
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| 	const auto full = QSize(size, size);
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| 	const auto version = style::PaletteVersion();
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| 	const auto forumValue = forum ? 1 : 0;
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| 	const auto regenerate = (view.cached.size() != QSize(size, size))
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| 		|| (view.forum != forumValue)
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| 		|| (cloud && !view.empty.null())
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| 		|| (empty && empty != view.empty.get())
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| 		|| (empty && view.paletteVersion != version);
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| 	if (!regenerate) {
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| 		return;
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| 	}
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| 	view.empty = empty;
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| 	view.forum = forumValue;
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| 	view.paletteVersion = version;
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| 
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| 	if (cloud) {
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| 		view.cached = cloud->scaled(
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| 			full,
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| 			Qt::IgnoreAspectRatio,
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| 			Qt::SmoothTransformation);
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| 		if (forum) {
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| 			view.cached = Images::Round(
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| 				std::move(view.cached),
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| 				Images::CornersMask(size
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| 					* Ui::ForumUserpicRadiusMultiplier()
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| 					/ style::DevicePixelRatio()));
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| 		} else {
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| 			view.cached = Images::Circle(std::move(view.cached));
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| 		}
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| 	} else {
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| 		if (view.cached.size() != full) {
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| 			view.cached = QImage(full, QImage::Format_ARGB32_Premultiplied);
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| 		}
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| 		view.cached.fill(Qt::transparent);
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| 
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| 		auto p = QPainter(&view.cached);
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| 		if (forum) {
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| 			empty->paintRounded(
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| 				p,
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| 				0,
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| 				0,
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| 				size,
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| 				size,
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| 				size * Ui::ForumUserpicRadiusMultiplier());
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| 		} else {
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| 			empty->paintCircle(p, 0, 0, size, size);
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| 		}
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| 	}
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| }
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| 
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| } // namespace Ui
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