Controls: rename the C++ module to qtquickcontrols2

Change-Id: I087a39baebc296a340739161874636926adaa56c
Reviewed-by: J-P Nurmi <jpnurmi@theqtcompany.com>

1 files changed, 193 insertions, 0 deletions

diff --git a/src/quickcontrols2/qquickstyleselector.cpp b/src/quickcontrols2/qquickstyleselector.cpp
new file mode 100644
index 00000000..64e9d500
--- /dev/null
+++ b/src/quickcontrols2/qquickstyleselector.cpp
@@ -0,0 +1,193 @@
+/***************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Copyright (C) 2013 BlackBerry Limited. All rights reserved.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the Qt Labs 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 The Qt Company. For licensing terms
+** and conditions see http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://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 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.
+**
+** As a special exception, The Qt Company gives you certain additional
+** rights. These rights are described in The Qt Company LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qquickstyleselector_p.h"
+#include "qquickstyleselector_p_p.h"
+#include "qquickstyle.h"
+
+#include <QtCore/qdir.h>
+#include <QtCore/qfile.h>
+#include <QtCore/qfileinfo.h>
+#include <QtCore/qsysinfo.h>
+#include <QtCore/qlocale.h>
+
+#include <QtGui/private/qguiapplication_p.h>
+
+QT_BEGIN_NAMESPACE
+
+static bool isLocalScheme(const QString &scheme)
+{
+    bool local = scheme == QLatin1String("qrc");
+#ifdef Q_OS_ANDROID
+    local |= scheme == QLatin1String("assets");
+#endif
+    return local;
+}
+
+// similar, but not identical to QSysInfo::osType
+static QStringList platformSelectors()
+{
+    static QStringList selectors;
+    if (!selectors.isEmpty())
+        return selectors;
+
+#if defined(Q_OS_WIN)
+    // can't fall back to QSysInfo because we need both "winphone" and "winrt" for the Windows Phone case
+    selectors << QStringLiteral("windows");
+    selectors << QSysInfo::kernelType();  // "wince" and "winnt"
+#  if defined(Q_OS_WINRT)
+    selectors << QStringLiteral("winrt");
+#    if defined(Q_OS_WINPHONE)
+    selectors << QStringLiteral("winphone");
+#    endif
+#  endif
+#elif defined(Q_OS_UNIX)
+    selectors << QStringLiteral("unix");
+#  if !defined(Q_OS_ANDROID) && !defined(Q_OS_BLACKBERRY)
+    // we don't want "linux" for Android or "qnx" for Blackberry here
+    selectors << QSysInfo::kernelType();
+#     ifdef Q_OS_MAC
+    selectors << QStringLiteral("mac"); // compatibility, since kernelType() is "darwin"
+#     endif
+#  endif
+    QString productName = QSysInfo::productType();
+    if (productName != QLatin1String("unknown"))
+        selectors << productName; // "opensuse", "fedora", "osx", "ios", "blackberry", "android"
+#endif
+    return selectors;
+}
+
+static QStringList allSelectors(bool includeStyle)
+{
+    QStringList selectors = platformSelectors();
+    selectors += QLocale().name();
+    if (includeStyle) {
+        QString style = QQuickStyle::name();
+        if (!style.isEmpty())
+            selectors.prepend(style.toLower());
+    }
+    return selectors;
+}
+
+static QString selectionHelper(const QString &path, const QString &fileName, const QStringList &selectors)
+{
+    /* selectionHelper does a depth-first search of possible selected files. Because there is strict
+       selector ordering in the API, we can stop checking as soon as we find the file in a directory
+       which does not contain any other valid selector directories.
+    */
+    Q_ASSERT(path.isEmpty() || path.endsWith(QLatin1Char('/')));
+
+    for (const QString &s : selectors) {
+        QString prospectiveBase = path + s + QLatin1Char('/');
+        QStringList remainingSelectors = selectors;
+        remainingSelectors.removeAll(s);
+        if (!QDir(prospectiveBase).exists())
+            continue;
+        QString prospectiveFile = selectionHelper(prospectiveBase, fileName, remainingSelectors);
+        if (!prospectiveFile.isEmpty())
+            return prospectiveFile;
+    }
+
+    // If we reach here there were no successful files found at a lower level in this branch, so we
+    // should check this level as a potential result.
+    const QString result = path + fileName;
+    if (!QFileInfo::exists(result))
+        return QString();
+    return result;
+}
+
+QString QQuickStyleSelectorPrivate::select(const QString &filePath) const
+{
+    QFileInfo fi(filePath);
+    // If file doesn't exist, don't select
+    if (!fi.exists())
+        return filePath;
+
+    const QString path = fi.path();
+    const QString ret = selectionHelper(path.isEmpty() ? QString() : path + QLatin1Char('/'),
+                                        fi.fileName(), allSelectors(true));
+
+    if (!ret.isEmpty())
+        return ret;
+    return filePath;
+}
+
+QQuickStyleSelector::QQuickStyleSelector() : d_ptr(new QQuickStyleSelectorPrivate)
+{
+}
+
+QQuickStyleSelector::~QQuickStyleSelector()
+{
+}
+
+QUrl QQuickStyleSelector::baseUrl() const
+{
+    Q_D(const QQuickStyleSelector);
+    return d->baseUrl;
+}
+
+void QQuickStyleSelector::setBaseUrl(const QUrl &url)
+{
+    Q_D(QQuickStyleSelector);
+    d->baseUrl = url;
+}
+
+QString QQuickStyleSelector::select(const QString &fileName) const
+{
+    Q_D(const QQuickStyleSelector);
+    const QString overridePath = QQuickStyle::path();
+    if (!overridePath.isEmpty()) {
+        const QString stylePath = overridePath + QQuickStyle::name() + QLatin1Char('/');
+        if (QFile::exists(stylePath + fileName)) {
+            // the style name is included to the path, so exclude it from the selectors.
+            // the rest of the selectors (os, locale) are still valid, though.
+            const QString selectedPath = selectionHelper(stylePath, fileName, allSelectors(false));
+            if (selectedPath.startsWith(QLatin1Char(':')))
+                return QLatin1String("qrc") + selectedPath;
+            return QUrl::fromLocalFile(selectedPath).toString();
+        }
+    }
+
+    QUrl url(d->baseUrl.toString() + QLatin1Char('/') + fileName);
+    if (isLocalScheme(url.scheme())) {
+        QString equivalentPath = QLatin1Char(':') + url.path();
+        QString selectedPath = d->select(equivalentPath);
+        url.setPath(selectedPath.remove(0, 1));
+    } else if (url.isLocalFile()) {
+        url = QUrl::fromLocalFile(d->select(url.toLocalFile()));
+    }
+    return url.toString();
+}
+
+QT_END_NAMESPACE