tdesktop/Telegram/SourceFiles/editor/photo_editor_common.cpp

60 lines
1.3 KiB
C++

/*
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 "editor/photo_editor_common.h"
#include "editor/scene/scene.h"
#include "ui/painter.h"
namespace Editor {
QImage ImageModified(QImage image, const PhotoModifications &mods) {
Expects(!image.isNull());
if (!mods) {
return image;
}
if (mods.paint) {
if (image.format() != QImage::Format_ARGB32_Premultiplied) {
image = image.convertToFormat(
QImage::Format_ARGB32_Premultiplied);
}
Painter p(&image);
PainterHighQualityEnabler hq(p);
mods.paint->render(&p, image.rect());
}
auto cropped = mods.crop.isValid()
? image.copy(mods.crop)
: image;
QTransform transform;
if (mods.flipped) {
transform.scale(-1, 1);
}
if (mods.angle) {
transform.rotate(mods.angle);
}
return cropped.transformed(transform);
}
bool PhotoModifications::empty() const {
return !angle && !flipped && !crop.isValid() && !paint;
}
PhotoModifications::operator bool() const {
return !empty();
}
PhotoModifications::~PhotoModifications() {
if (paint && (paint.use_count() == 1)) {
paint->deleteLater();
}
}
} // namespace Editor