Differential D22468 Diff 63234 kcm/output_identifier.cpp

Changeset View

Standalone View

kcm/output_identifier.cpp

This file was added.

		1		/********************************************************************
		2		Copyright © 2019 Roman Gilg <subdiff@gmail.com>
		3
		4		This program is free software; you can redistribute it and/or modify
		5		it under the terms of the GNU General Public License as published by
		6		the Free Software Foundation; either version 2 of the License, or
		7		(at your option) any later version.
		8
		9		This program is distributed in the hope that it will be useful,
		10		but WITHOUT ANY WARRANTY; without even the implied warranty of
		11		MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		12		GNU General Public License for more details.
		13
		14		You should have received a copy of the GNU General Public License
		15		along with this program. If not, see <http://www.gnu.org/licenses/>.
		16		*********************************************************************/
		17		#include "output_identifier.h"
		18
		19		#include "../common/utils.h"
		20
		21		#include <kscreen/output.h>
		22
		23		#include <QStandardPaths>
		24		#include <QTimer>
		25		#include <QQuickItem>
		26		#include <QQuickView>
		27
		28		#define QML_PATH "kpackage/kcms/kcm_kscreen/contents/ui/"
		29
		30		OutputIdentifier::OutputIdentifier(KScreen::ConfigPtr config, QObject *parent)
		31		: QObject(parent)
		32		{
		33
		34		const QString qmlPath =
		35		QStandardPaths::locate(QStandardPaths::GenericDataLocation,
		36		QStringLiteral(QML_PATH
		37		"OutputIdentifier.qml"));
		38
		39		for (const auto &output : config->connectedOutputs()) {
		40		if (!output->currentMode()) {
		41		continue;
		42		}
		43
		44		const KScreen::ModePtr mode = output->currentMode();
		45
		46		auto *view = new QQuickView();
		47
		48		view->setFlags(Qt::X11BypassWindowManagerHint \| Qt::FramelessWindowHint);
		49		view->setResizeMode(QQuickView::SizeViewToRootObject);
		50		view->setSource(QUrl::fromLocalFile(qmlPath));
		51		view->installEventFilter(this);
		52
		53		QQuickItem *rootObj = view->rootObject();
		54		if (!rootObj) {
		55		continue;
		56		}
		57
		58		QSize deviceSize, logicalSize;
		59		if (output->isHorizontal()) {
		60		deviceSize = mode->size();
		61		} else {
		62		deviceSize = QSize(mode->size().height(), mode->size().width());
		63		}
		64		if (config->supportedFeatures() & KScreen::Config::Feature::PerOutputScaling) {
		65		// no scale adjustment needed on Wayland
		66		logicalSize = deviceSize;
		67		} else {
		68		logicalSize = deviceSize / view->effectiveDevicePixelRatio();
		69		}
		70
		71		rootObj->setProperty("outputName", Utils::outputName(output));
		72		rootObj->setProperty("modeName", Utils::sizeToString(deviceSize));
		73		view->setProperty("screenSize", QRect(output->pos(), logicalSize));
		74		m_views << view;
		75		}
		76
		77		for (auto *view : m_views) {
		78		view->show();
		79		}
		80		QTimer::singleShot(2500, this, &OutputIdentifier::identifiersFinished);
		81		}
		82
		83		OutputIdentifier::~OutputIdentifier()
		84		{
		85		qDeleteAll(m_views);
		86		}
		87
		88		bool OutputIdentifier::eventFilter(QObject* object, QEvent* event)
		89		{
		90		if (event->type() == QEvent::Resize) {
		91		if (m_views.contains(qobject_cast<QQuickView*>(object))) {
		92		QResizeEvent e = static_cast<QResizeEvent>(event);
		93		const QRect screenSize = object->property("screenSize").toRect();
		94		QRect geometry(QPoint(0, 0), e->size());
		95		geometry.moveCenter(screenSize.center());
		96		static_cast<QQuickView*>(object)->setGeometry(geometry);
		97		}
		98		}
		99		return QObject::eventFilter(object, event);
		100		}