95 lines
2.7 KiB
C++
95 lines
2.7 KiB
C++
/*
|
|
KWin - the KDE window manager
|
|
This file is part of the KDE project.
|
|
|
|
SPDX-FileCopyrightText: 2014 Martin Gräßlin <mgraesslin@kde.org>
|
|
|
|
SPDX-License-Identifier: GPL-2.0-or-later
|
|
*/
|
|
#include "screens_xrandr.h"
|
|
#include "x11_platform.h"
|
|
|
|
#ifndef KWIN_UNIT_TEST
|
|
#include "composite.h"
|
|
#include "options.h"
|
|
#include "workspace.h"
|
|
#endif
|
|
#include "xcbutils.h"
|
|
|
|
|
|
namespace KWin
|
|
{
|
|
|
|
XRandRScreens::XRandRScreens(X11StandalonePlatform *backend, QObject *parent)
|
|
: OutputScreens(backend, parent)
|
|
, X11EventFilter(Xcb::Extensions::self()->randrNotifyEvent())
|
|
, m_backend(backend)
|
|
{
|
|
}
|
|
|
|
XRandRScreens::~XRandRScreens() = default;
|
|
|
|
void XRandRScreens::init()
|
|
{
|
|
KWin::Screens::init();
|
|
// we need to call ScreenResources at least once to be able to use current
|
|
m_backend->initOutputs();
|
|
setCount(m_backend->outputs().count());
|
|
emit changed();
|
|
|
|
#ifndef KWIN_UNIT_TEST
|
|
connect(this, &XRandRScreens::changed, this, [] {
|
|
if (!workspace()->compositing()) {
|
|
return;
|
|
}
|
|
if (Compositor::self()->refreshRate() == Options::currentRefreshRate()) {
|
|
return;
|
|
}
|
|
// desktopResized() should take care of when the size or
|
|
// shape of the desktop has changed, but we also want to
|
|
// catch refresh rate changes
|
|
Compositor::self()->reinitialize();
|
|
});
|
|
#endif
|
|
}
|
|
|
|
void XRandRScreens::updateCount()
|
|
{
|
|
m_backend->updateOutputs();
|
|
setCount(m_backend->outputs().count());
|
|
}
|
|
|
|
bool XRandRScreens::event(xcb_generic_event_t *event)
|
|
{
|
|
Q_ASSERT((event->response_type & ~0x80) == Xcb::Extensions::self()->randrNotifyEvent());
|
|
// let's try to gather a few XRandR events, unlikely that there is just one
|
|
startChangedTimer();
|
|
|
|
// update default screen
|
|
auto *xrrEvent = reinterpret_cast<xcb_randr_screen_change_notify_event_t*>(event);
|
|
xcb_screen_t *screen = kwinApp()->x11DefaultScreen();
|
|
if (xrrEvent->rotation & (XCB_RANDR_ROTATION_ROTATE_90 | XCB_RANDR_ROTATION_ROTATE_270)) {
|
|
screen->width_in_pixels = xrrEvent->height;
|
|
screen->height_in_pixels = xrrEvent->width;
|
|
screen->width_in_millimeters = xrrEvent->mheight;
|
|
screen->height_in_millimeters = xrrEvent->mwidth;
|
|
} else {
|
|
screen->width_in_pixels = xrrEvent->width;
|
|
screen->height_in_pixels = xrrEvent->height;
|
|
screen->width_in_millimeters = xrrEvent->mwidth;
|
|
screen->height_in_millimeters = xrrEvent->mheight;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
QSize XRandRScreens::displaySize() const
|
|
{
|
|
xcb_screen_t *screen = kwinApp()->x11DefaultScreen();
|
|
if (!screen) {
|
|
return Screens::size();
|
|
}
|
|
return QSize(screen->width_in_pixels, screen->height_in_pixels);
|
|
}
|
|
|
|
} // namespace
|