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-rw-r--r--src/plugins/platforms/mirclient/qmirclientscreenobserver.cpp161
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diff --git a/src/plugins/platforms/mirclient/qmirclientscreenobserver.cpp b/src/plugins/platforms/mirclient/qmirclientscreenobserver.cpp
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--- a/src/plugins/platforms/mirclient/qmirclientscreenobserver.cpp
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-/****************************************************************************
-**
-** Copyright (C) 2016 Canonical, Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the plugins of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-
-#include "qmirclientscreenobserver.h"
-#include "qmirclientscreen.h"
-#include "qmirclientwindow.h"
-#include "qmirclientlogging.h"
-
-// Qt
-#include <QMetaObject>
-#include <QPointer>
-
-// Mir
-#include <mirclient/mir_toolkit/mir_connection.h>
-#include <mirclient/mir_toolkit/mir_display_configuration.h>
-
-#include <memory>
-
-namespace {
- static void displayConfigurationChangedCallback(MirConnection */*connection*/, void* context)
- {
- ASSERT(context != NULL);
- QMirClientScreenObserver *observer = static_cast<QMirClientScreenObserver *>(context);
- QMetaObject::invokeMethod(observer, "update");
- }
-
- const char *mirFormFactorToStr(MirFormFactor formFactor)
- {
- switch (formFactor) {
- case mir_form_factor_unknown: return "unknown";
- case mir_form_factor_phone: return "phone";
- case mir_form_factor_tablet: return "tablet";
- case mir_form_factor_monitor: return "monitor";
- case mir_form_factor_tv: return "tv";
- case mir_form_factor_projector: return "projector";
- }
- Q_UNREACHABLE();
- }
-} // anonymous namespace
-
-QMirClientScreenObserver::QMirClientScreenObserver(MirConnection *mirConnection)
- : mMirConnection(mirConnection)
-{
- mir_connection_set_display_config_change_callback(mirConnection, ::displayConfigurationChangedCallback, this);
- update();
-}
-
-void QMirClientScreenObserver::update()
-{
- // Wrap MirDisplayConfiguration to always delete when out of scope
- auto configDeleter = [](MirDisplayConfig *config) { mir_display_config_release(config); };
- using configUp = std::unique_ptr<MirDisplayConfig, decltype(configDeleter)>;
- configUp displayConfig(mir_connection_create_display_configuration(mMirConnection), configDeleter);
-
- // Mir only tells us something changed, it is up to us to figure out what.
- QList<QMirClientScreen*> newScreenList;
- QList<QMirClientScreen*> oldScreenList = mScreenList;
- mScreenList.clear();
-
- for (int i = 0; i < mir_display_config_get_num_outputs(displayConfig.get()); i++) {
- const MirOutput *output = mir_display_config_get_output(displayConfig.get(), i);
- if (mir_output_is_enabled(output)) {
- QMirClientScreen *screen = findScreenWithId(oldScreenList, mir_output_get_id(output));
- if (screen) { // we've already set up this display before
- screen->updateMirOutput(output);
- oldScreenList.removeAll(screen);
- } else {
- // new display, so create QMirClientScreen for it
- screen = new QMirClientScreen(output, mMirConnection);
- newScreenList.append(screen);
- qCDebug(mirclient) << "Added Screen with id" << mir_output_get_id(output)
- << "and geometry" << screen->geometry();
- }
- mScreenList.append(screen);
- }
- }
-
- // Announce old & unused Screens, should be deleted by the slot
- Q_FOREACH (const auto screen, oldScreenList) {
- Q_EMIT screenRemoved(screen);
- }
-
- /*
- * Mir's MirDisplayOutput does not include formFactor or scale for some reason, but Qt
- * will want that information on creating the QScreen. Only way we get that info is when
- * Mir positions a Window on that Screen. See "handleScreenPropertiesChange" method
- */
-
- // Announce new Screens
- Q_FOREACH (const auto screen, newScreenList) {
- Q_EMIT screenAdded(screen);
- }
-
- qCDebug(mirclient) << "=======================================";
- for (auto screen: mScreenList) {
- qCDebug(mirclient) << screen << "- id:" << screen->mirOutputId()
- << "geometry:" << screen->geometry()
- << "form factor:" << mirFormFactorToStr(screen->formFactor())
- << "scale:" << screen->scale();
- }
- qCDebug(mirclient) << "=======================================";
-}
-
-QMirClientScreen *QMirClientScreenObserver::findScreenWithId(int id)
-{
- return findScreenWithId(mScreenList, id);
-}
-
-QMirClientScreen *QMirClientScreenObserver::findScreenWithId(const QList<QMirClientScreen *> &list, int id)
-{
- Q_FOREACH (const auto screen, list) {
- if (screen->mirOutputId() == id) {
- return screen;
- }
- }
- return nullptr;
-}
-
-void QMirClientScreenObserver::handleScreenPropertiesChange(QMirClientScreen *screen, int dpi,
- MirFormFactor formFactor, float scale)
-{
- screen->setAdditionalMirDisplayProperties(scale, formFactor, dpi);
-}
-