KShare/platformspecifics/x11/x11backend.cpp
ArsenArsen 2bd01bf181 Add active window capture
Not on Mac. I still don't have a way to test there.
2017-06-27 11:33:11 +02:00

57 lines
2.0 KiB
C++

#include "x11backend.hpp"
#include <QPixmap>
#include <QX11Info>
#include <unistd.h>
#include <xcb/xcb_cursor.h>
#include <xcb/xcb_util.h>
#include <xcb/xfixes.h>
std::tuple<QPoint, QPixmap> PlatformBackend::getCursor() {
xcb_connection_t *connection = QX11Info::connection();
xcb_xfixes_get_cursor_image_cookie_t cursorCookie = xcb_xfixes_get_cursor_image_unchecked(connection);
QScopedPointer<xcb_xfixes_get_cursor_image_reply_t> cursorReply(xcb_xfixes_get_cursor_image_reply(connection, cursorCookie, NULL));
if (cursorReply.isNull()) {
return std::tuple<QPoint, QPixmap>(QPoint(0, 0), QPixmap());
}
quint32 *pixels = xcb_xfixes_get_cursor_image_cursor_image(cursorReply.data());
if (!pixels) {
return std::tuple<QPoint, QPixmap>(QPoint(0, 0), QPixmap());
}
return std::tuple<QPoint, QPixmap>(QPoint(cursorReply->xhot, cursorReply->yhot),
QPixmap::fromImage(QImage((quint8 *)pixels, cursorReply->width, cursorReply->height,
QImage::Format_ARGB32_Premultiplied)));
}
pid_t PlatformBackend::pid() {
return getpid();
}
WId PlatformBackend::getActiveWID() {
xcb_connection_t *connection = QX11Info::connection();
xcb_get_input_focus_reply_t *focusReply;
xcb_query_tree_cookie_t treeCookie;
xcb_query_tree_reply_t *treeReply;
focusReply = xcb_get_input_focus_reply(connection, xcb_get_input_focus(connection), nullptr);
xcb_window_t window = focusReply->focus;
while (1) {
treeCookie = xcb_query_tree(connection, window);
treeReply = xcb_query_tree_reply(connection, treeCookie, nullptr);
if (!treeReply) {
window = 0;
break;
}
if (window == treeReply->root || treeReply->parent == treeReply->root) {
break;
} else {
window = treeReply->parent;
}
delete treeReply;
}
delete treeReply;
return window;
}