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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt Quick Controls module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** 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 Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/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 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qquickcontrolsettings_p.h"
#include <qquickitem.h>
#include <qcoreapplication.h>
#include <qqmlengine.h>
#include <qlibrary.h>
#include <qdir.h>
#include <QTouchDevice>
#include <QGuiApplication>
#include <QStyleHints>
#if defined(Q_OS_ANDROID) && !defined(Q_OS_ANDROID_NO_SDK)
#include <private/qjnihelpers_p.h>
#endif
QT_BEGIN_NAMESPACE
static QString defaultStyleName()
{
//Only enable QStyle support when we are using QApplication
#if defined(QT_WIDGETS_LIB) && !defined(Q_OS_IOS) && !defined(Q_OS_ANDROID) && !defined(Q_OS_BLACKBERRY) && !defined(Q_OS_QNX) && !defined(Q_OS_WINRT)
if (QCoreApplication::instance()->inherits("QApplication"))
return QLatin1String("Desktop");
#elif defined(Q_OS_ANDROID) && !defined(Q_OS_ANDROID_NO_SDK)
if (QtAndroidPrivate::androidSdkVersion() >= 11)
return QLatin1String("Android");
#elif defined(Q_OS_IOS)
return QLatin1String("iOS");
#endif
return QLatin1String("Base");
}
static QString styleImportName()
{
QString name = qgetenv("QT_QUICK_CONTROLS_STYLE");
if (name.isEmpty())
name = defaultStyleName();
return QFileInfo(name).fileName();
}
static bool fromResource(const QString &path)
{
return path.startsWith("qrc:");
}
bool QQuickControlSettings::hasTouchScreen() const
{
// QTBUG-36007
#if defined(Q_OS_ANDROID)
return true;
#else
foreach (const QTouchDevice *dev, QTouchDevice::devices())
if (dev->type() == QTouchDevice::TouchScreen)
return true;
return false;
#endif
}
bool QQuickControlSettings::isMobile() const
{
#if defined(Q_OS_IOS) || defined(Q_OS_ANDROID) || defined(Q_OS_BLACKBERRY) || defined(Q_OS_QNX) || defined(Q_OS_WINRT)
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 (fromResource(path)) {
path = info.path();
} else 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
QDir dir(path);
if (!dir.exists()) {
QString unknownStyle = m_name;
m_name = defaultStyleName();
m_path = styleImportPath(engine, m_name);
qWarning() << "WARNING: Cannot find style" << unknownStyle << "- fallback:" << styleFilePath();
} else {
typedef bool (*StyleInitFunc)();
typedef const char *(*StylePathFunc)();
foreach (const QString &fileName, dir.entryList()) {
if (QLibrary::isLibrary(fileName)) {
QLibrary lib(dir.absoluteFilePath(fileName));
StyleInitFunc initFunc = (StyleInitFunc) lib.resolve("qt_quick_controls_style_init");
if (initFunc)
initFunc();
StylePathFunc pathFunc = (StylePathFunc) lib.resolve("qt_quick_controls_style_path");
if (pathFunc)
m_path = QString::fromLocal8Bit(pathFunc());
if (initFunc || pathFunc)
break;
}
}
}
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;
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;
}
qreal QQuickControlSettings::dragThreshold() const
{
return qApp->styleHints()->startDragDistance();
}
QT_END_NAMESPACE
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