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qquickcontrolsettings.cpp 5.11 KiB
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/****************************************************************************
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**
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** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the Qt Quick Controls module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Digia.  For licensing terms and
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** conditions see http://qt.digia.com/licensing.  For further information
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** use the contact form at http://qt.digia.com/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file.  Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Digia gives you certain additional
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** rights.  These rights are described in the Digia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file.  Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "qquickcontrolsettings_p.h"
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#include <qquickitem.h>
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#include <qcoreapplication.h>
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#include <qqmlengine.h>
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#include <qdir.h>
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QT_BEGIN_NAMESPACE
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static QString defaultStyleName()
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{
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    //Only enable QStyle support when we are using QApplication
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#if !defined(Q_OS_IOS) && !defined(Q_OS_ANDROID) && !defined (Q_OS_BLACKBERRY)
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    if (QCoreApplication::instance()->inherits("QApplication"))
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        return QLatin1String("Desktop");
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#endif
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    return QLatin1String("Base");
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}
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static QString styleImportName()
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{
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    QString name = qgetenv("QT_QUICK_CONTROLS_STYLE");
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    if (name.isEmpty())
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        name = defaultStyleName();
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    return QFileInfo(name).fileName();
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}
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static bool fromResource(const QString &path)
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{
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    return path.startsWith("qrc:");
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} bool QQuickControlSettings::hasTouchScreen() const { #if defined(Q_OS_IOS) || defined(Q_OS_ANDROID) || defined (Q_OS_BLACKBERRY) return true; #else return false; #endif } static QString styleImportPath(QQmlEngine *engine, const QString &styleName) { QString path = qgetenv("QT_QUICK_CONTROLS_STYLE"); QFileInfo info(path); if (info.isRelative()) { bool found = false; foreach (const QString &import, engine->importPathList()) { QDir dir(import + QLatin1String("/QtQuick/Controls/Styles")); if (dir.exists(styleName)) { found = true; path = dir.absolutePath(); break; } } if (!found) path = "qrc:/QtQuick/Controls/Styles"; } else { path = info.absolutePath(); } return path; } QQuickControlSettings::QQuickControlSettings(QQmlEngine *engine) { m_name = styleImportName(); m_path = styleImportPath(engine, m_name); QString path = styleFilePath(); if (fromResource(path)) path = path.remove(0, 3); // remove qrc from the path if (!QDir(path).exists()) { QString unknownStyle = m_name; m_name = defaultStyleName(); m_path = styleImportPath(engine, m_name); qWarning() << "WARNING: Cannot find style" << unknownStyle << "- fallback:" << styleFilePath(); } connect(this, SIGNAL(styleNameChanged()), SIGNAL(styleChanged())); connect(this, SIGNAL(stylePathChanged()), SIGNAL(styleChanged())); } QString QQuickControlSettings::style() const { if (fromResource(styleFilePath())) return styleFilePath(); else return QUrl::fromLocalFile(styleFilePath()).toString(); } QString QQuickControlSettings::styleName() const { return m_name; } void QQuickControlSettings::setStyleName(const QString &name) { if (m_name != name) { m_name = name;
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emit styleNameChanged(); } } QString QQuickControlSettings::stylePath() const { return m_path; } void QQuickControlSettings::setStylePath(const QString &path) { if (m_path != path) { m_path = path; emit stylePathChanged(); } } QString QQuickControlSettings::styleFilePath() const { return m_path + QLatin1Char('/') + m_name; } extern Q_GUI_EXPORT int qt_defaultDpiX(); qreal QQuickControlSettings::dpiScaleFactor() const { #ifndef Q_OS_MAC return (qreal(qt_defaultDpiX()) / 96.0); #endif return 1.0; } QT_END_NAMESPACE