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refactor: get window preview

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The function provided by kwin should be used first, and xcb is second.

Issue: Closed https://github.com/linuxdeepin/developer-center/issues/3137
Log: 重构获取窗口预览的方式
This commit is contained in:
justforlxz 2022-05-12 13:04:32 +08:00 committed by deepin-bot[bot]
parent 6c82bec3e3
commit 585b13bd7b
1 changed files with 52 additions and 52 deletions
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104
frame/item/components/appsnapshot.cpp
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@ -210,67 +210,67 @@ void AppSnapshot::fetchSnapshot()
uchar *image_data = nullptr;
XImage *ximage = nullptr;
// 优先使用窗管进行窗口截图
if (isKWinAvailable()) {
QDBusInterface interface(QStringLiteral("org.kde.KWin"), QStringLiteral("/Screenshot"), QStringLiteral("org.kde.kwin.Screenshot"));
qDebug() << "windowsID:"<< m_wid;
do {
// 优先使用窗管进行窗口截图
if (isKWinAvailable()) {
QDBusInterface interface(QStringLiteral("org.kde.KWin"), QStringLiteral("/Screenshot"), QStringLiteral("org.kde.kwin.Screenshot"));
qDebug() << "windowsID:"<< m_wid;
QList<QVariant> args;
args << QVariant::fromValue(m_wid);
args << QVariant::fromValue(quint32(SNAP_WIDTH));
args << QVariant::fromValue(quint32(SNAP_HEIGHT));
QList<QVariant> args;
args << QVariant::fromValue(m_wid);
args << QVariant::fromValue(quint32(SNAP_WIDTH));
args << QVariant::fromValue(quint32(SNAP_HEIGHT));
QDBusReply<QString> reply = interface.callWithArgumentList(QDBus::Block,QStringLiteral("screenshotForWindowExtend"), args);
if(reply.isValid()){
const QString tmpFile = reply.value();
if (QFile::exists(tmpFile)) {
m_snapshot.load(tmpFile);
qDebug() << "reply: " << tmpFile;
QFile::remove(tmpFile);
} else {
qDebug() << "get current workspace bckground error, file does not exist : " << tmpFile;
QDBusReply<QString> reply = interface.callWithArgumentList(QDBus::Block,QStringLiteral("screenshotForWindowExtend"), args);
if(reply.isValid()){
const QString tmpFile = reply.value();
if (QFile::exists(tmpFile)) {
m_snapshot.load(tmpFile);
m_snapshotSrcRect = m_snapshot.rect();
qDebug() << "reply: " << tmpFile;
QFile::remove(tmpFile);
} else {
qDebug() << "get current workspace bckground error, file does not exist : " << tmpFile;
}
} else {
qDebug() << "get current workspace bckground error: "<< reply.error().message();
}
} else {
qDebug() << "get current workspace bckground error: "<< reply.error().message();
}
m_snapshotSrcRect = m_snapshot.rect();
} else {
do {
// get window image from shm(only for deepin app)
info = getImageDSHM();
if (info) {
qDebug() << "get Image from dxcbplugin SHM...";
image_data = (uchar *)shmat(info->shmid, 0, 0);
if ((qint64)image_data != -1) {
m_snapshot = QImage(image_data, info->width, info->height, info->bytesPerLine, (QImage::Format)info->format);
m_snapshotSrcRect = QRect(info->rect.x, info->rect.y, info->rect.width, info->rect.height);
break;
}
qDebug() << "invalid pointer of shm!";
image_data = nullptr;
// get window image from shm(only for deepin app)
info = getImageDSHM();
if (info) {
qDebug() << "get Image from dxcbplugin SHM...";
image_data = (uchar *)shmat(info->shmid, 0, 0);
if ((qint64)image_data != -1) {
m_snapshot = QImage(image_data, info->width, info->height, info->bytesPerLine, (QImage::Format)info->format);
m_snapshotSrcRect = QRect(info->rect.x, info->rect.y, info->rect.width, info->rect.height);
break;
}
qDebug() << "invalid pointer of shm!";
image_data = nullptr;
}
if (!image_data || qimage.isNull()) {
// get window image from XGetImage(a little slow)
qDebug() << "get Image from dxcbplugin SHM failed!";
qDebug() << "get Image from Xlib...";
// guoyao note：这里会造成内存泄漏，而且是通过demo在X环境经过验证，改用xcb库同样会有内存泄漏，这里暂时未找到解决方案，所以优先使用kwin提供的接口
ximage = getImageXlib();
if (!ximage) {
qDebug() << "get Image from Xlib failed! giving up...";
emit requestCheckWindow();
return;
}
qimage = QImage((const uchar *)(ximage->data), ximage->width, ximage->height, ximage->bytes_per_line, QImage::Format_RGB32);
if (!image_data || qimage.isNull()) {
// get window image from XGetImage(a little slow)
qDebug() << "get Image from dxcbplugin SHM failed!";
qDebug() << "get Image from Xlib...";
// guoyao note：这里会造成内存泄漏，而且是通过demo在X环境经过验证，改用xcb库同样会有内存泄漏，这里暂时未找到解决方案，所以优先使用kwin提供的接口
ximage = getImageXlib();
if (!ximage) {
qDebug() << "get Image from Xlib failed! giving up...";
emit requestCheckWindow();
return;
}
qimage = QImage((const uchar *)(ximage->data), ximage->width, ximage->height, ximage->bytes_per_line, QImage::Format_RGB32);
}
Q_ASSERT(!qimage.isNull());
Q_ASSERT(!qimage.isNull());
// remove shadow frame
m_snapshotSrcRect = rectRemovedShadow(qimage, nullptr);
m_snapshot = qimage;
} while (false);
}
// remove shadow frame
m_snapshotSrcRect = rectRemovedShadow(qimage, nullptr);
m_snapshot = qimage;
} while(false);
QSizeF size(rect().marginsRemoved(QMargins(8, 8, 8, 8)).size());
const auto ratio = devicePixelRatioF();