vasilito
cf12defd28
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent) Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
62 lines
2.0 KiB
C++
62 lines
2.0 KiB
C++
/*
|
|
SPDX-FileCopyrightText: 2024 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
|
|
|
|
SPDX-License-Identifier: GPL-2.0-or-later
|
|
*/
|
|
|
|
#include "utils/xcursorreader.h"
|
|
#include "3rdparty/xcursor.h"
|
|
|
|
#include <QFile>
|
|
|
|
namespace KWin
|
|
{
|
|
|
|
QList<CursorSprite> XCursorReader::load(const QString &filePath, int desiredSize, qreal devicePixelRatio)
|
|
{
|
|
QFile file(filePath);
|
|
if (!file.open(QFile::ReadOnly)) {
|
|
return {};
|
|
}
|
|
|
|
XcursorFile reader {
|
|
.closure = &file,
|
|
.read = [](XcursorFile *file, uint8_t *buffer, int len) -> int {
|
|
QFile *device = static_cast<QFile *>(file->closure);
|
|
return device->read(reinterpret_cast<char *>(buffer), len);
|
|
},
|
|
.skip = [](XcursorFile *file, long offset) -> XcursorBool {
|
|
QFile *device = static_cast<QFile *>(file->closure);
|
|
return device->skip(offset) != -1;
|
|
},
|
|
.seek = [](XcursorFile *file, long offset) -> XcursorBool {
|
|
QFile *device = static_cast<QFile *>(file->closure);
|
|
return device->seek(offset);
|
|
},
|
|
};
|
|
|
|
XcursorImages *images = XcursorXcFileLoadImages(&reader, desiredSize * devicePixelRatio);
|
|
if (!images) {
|
|
return {};
|
|
}
|
|
|
|
QList<CursorSprite> sprites;
|
|
for (int i = 0; i < images->nimage; ++i) {
|
|
const XcursorImage *nativeCursorImage = images->images[i];
|
|
const qreal scale = std::max(qreal(1), qreal(nativeCursorImage->size) / desiredSize);
|
|
const QPointF hotspot(nativeCursorImage->xhot, nativeCursorImage->yhot);
|
|
const std::chrono::milliseconds delay(nativeCursorImage->delay);
|
|
|
|
QImage data(nativeCursorImage->width, nativeCursorImage->height, QImage::Format_ARGB32_Premultiplied);
|
|
data.setDevicePixelRatio(scale);
|
|
memcpy(data.bits(), nativeCursorImage->pixels, data.sizeInBytes());
|
|
|
|
sprites.append(CursorSprite(data, hotspot / scale, delay));
|
|
}
|
|
|
|
XcursorImagesDestroy(images);
|
|
return sprites;
|
|
}
|
|
|
|
} // namespace KWin
|