23rd
97 linhas
2.3 KiB
C++
97 linhas
2.3 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 "editor/photo_editor_common.h"
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#include "editor/scene/scene.h"
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#include "ui/painter.h"
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#include "ui/userpic_view.h"
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namespace Editor {
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namespace {
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void ApplyShapeMask(QImage &image, EditorData::CropType type) {
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if (type == EditorData::CropType::Rect) {
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return;
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}
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if (image.format() != QImage::Format_ARGB32_Premultiplied) {
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image = image.convertToFormat(QImage::Format_ARGB32_Premultiplied);
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}
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auto mask = QImage(image.size(), QImage::Format_ARGB32_Premultiplied);
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mask.fill(Qt::transparent);
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{
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auto p = QPainter(&mask);
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auto hq = PainterHighQualityEnabler(p);
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p.setPen(Qt::NoPen);
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p.setBrush(Qt::white);
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const auto rect = QRectF(QPointF(), QSizeF(image.size()));
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if (type == EditorData::CropType::Ellipse) {
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p.drawEllipse(rect);
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} else {
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const auto radius = std::min(rect.width(), rect.height())
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* Ui::ForumUserpicRadiusMultiplier();
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p.drawRoundedRect(rect, radius, radius);
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}
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}
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auto p = QPainter(&image);
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p.setCompositionMode(QPainter::CompositionMode_DestinationIn);
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p.drawImage(0, 0, mask);
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}
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} // namespace
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QImage ImageModified(QImage image, const PhotoModifications &mods) {
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Expects(!image.isNull());
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if (!mods) {
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return image;
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}
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if (mods.paint) {
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if (image.format() != QImage::Format_ARGB32_Premultiplied) {
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image = image.convertToFormat(
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QImage::Format_ARGB32_Premultiplied);
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}
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Painter p(&image);
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PainterHighQualityEnabler hq(p);
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mods.paint->render(&p, image.rect());
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}
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auto cropped = mods.crop.isValid()
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? image.copy(mods.crop)
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: image;
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ApplyShapeMask(cropped, mods.cropType);
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QTransform transform;
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if (mods.flipped) {
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transform.scale(-1, 1);
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}
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if (mods.angle) {
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transform.rotate(mods.angle);
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}
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return cropped.transformed(transform);
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}
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bool PhotoModifications::empty() const {
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return !angle
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&& !flipped
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&& !crop.isValid()
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&& cropType == EditorData::CropType::Rect
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&& !paint;
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}
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PhotoModifications::operator bool() const {
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return !empty();
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}
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PhotoModifications::~PhotoModifications() {
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if (paint && (paint.use_count() == 1)) {
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paint->deleteLater();
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}
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}
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} // namespace Editor
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