init

Telegram/SourceFiles/ui/userpic_view.cpp

@@ -0,0 +1,86 @@
+/*
+This file is part of Telegram Desktop,
+the official desktop application for the Telegram messaging service.
+
+For license and copyright information please follow this link:
+https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
+*/
+#include "ui/userpic_view.h"
+
+#include "ui/empty_userpic.h"
+#include "ui/painter.h"
+#include "ui/image/image_prepare.h"
+
+namespace Ui {
+
+float64 ForumUserpicRadiusMultiplier() {
+	return 0.3;
+}
+
+bool PeerUserpicLoading(const PeerUserpicView &view) {
+	return view.cloud && view.cloud->isNull();
+}
+
+void ValidateUserpicCache(
+		PeerUserpicView &view,
+		const QImage *cloud,
+		const EmptyUserpic *empty,
+		int size,
+		PeerUserpicShape shape) {
+	Expects(cloud != nullptr || empty != nullptr);
+
+	const auto full = QSize(size, size);
+	const auto version = style::PaletteVersion();
+	const auto shapeValue = static_cast<uint32>(shape) & 3;
+	const auto regenerate = (view.cached.size() != QSize(size, size))
+		|| (view.shape != shapeValue)
+		|| (cloud && !view.empty.null())
+		|| (empty && empty != view.empty.get())
+		|| (empty && view.paletteVersion != version);
+	if (!regenerate) {
+		return;
+	}
+	view.empty = empty;
+	view.shape = shapeValue;
+	view.paletteVersion = version;
+
+	if (cloud) {
+		view.cached = cloud->scaled(
+			full,
+			Qt::IgnoreAspectRatio,
+			Qt::SmoothTransformation);
+		if (shape == PeerUserpicShape::Monoforum) {
+			view.cached = Ui::ApplyMonoforumShape(std::move(view.cached));
+		} else if (shape == PeerUserpicShape::Forum) {
+			view.cached = Images::Round(
+				std::move(view.cached),
+				Images::CornersMask(size
+					* Ui::ForumUserpicRadiusMultiplier()
+					/ style::DevicePixelRatio()));
+		} else {
+			view.cached = Images::Circle(std::move(view.cached));
+		}
+	} else {
+		if (view.cached.size() != full) {
+			view.cached = QImage(full, QImage::Format_ARGB32_Premultiplied);
+		}
+		view.cached.fill(Qt::transparent);
+
+		auto p = QPainter(&view.cached);
+		if (shape == PeerUserpicShape::Monoforum) {
+			empty->paintMonoforum(p, 0, 0, size, size);
+		} else if (shape == PeerUserpicShape::Forum) {
+			empty->paintRounded(
+				p,
+				0,
+				0,
+				size,
+				size,
+				size * Ui::ForumUserpicRadiusMultiplier());
+		} else {
+			empty->paintCircle(p, 0, 0, size, size);
+		}
+	}
+}
+
+} // namespace Ui