1 | /**************************************************************************** |
2 | ** |
3 | ** Copyright (C) 2017 The Qt Company Ltd. |
4 | ** Contact: http://www.qt.io/licensing/ |
5 | ** |
6 | ** This file is part of the Qt Quick Controls 2 module of the Qt Toolkit. |
7 | ** |
8 | ** $QT_BEGIN_LICENSE:LGPL3$ |
9 | ** Commercial License Usage |
10 | ** Licensees holding valid commercial Qt licenses may use this file in |
11 | ** accordance with the commercial license agreement provided with the |
12 | ** Software or, alternatively, in accordance with the terms contained in |
13 | ** a written agreement between you and The Qt Company. For licensing terms |
14 | ** and conditions see http://www.qt.io/terms-conditions. For further |
15 | ** information use the contact form at http://www.qt.io/contact-us. |
16 | ** |
17 | ** GNU Lesser General Public License Usage |
18 | ** Alternatively, this file may be used under the terms of the GNU Lesser |
19 | ** General Public License version 3 as published by the Free Software |
20 | ** Foundation and appearing in the file LICENSE.LGPLv3 included in the |
21 | ** packaging of this file. Please review the following information to |
22 | ** ensure the GNU Lesser General Public License version 3 requirements |
23 | ** will be met: https://www.gnu.org/licenses/lgpl.html. |
24 | ** |
25 | ** GNU General Public License Usage |
26 | ** Alternatively, this file may be used under the terms of the GNU |
27 | ** General Public License version 2.0 or later as published by the Free |
28 | ** Software Foundation and appearing in the file LICENSE.GPL included in |
29 | ** the packaging of this file. Please review the following information to |
30 | ** ensure the GNU General Public License version 2.0 requirements will be |
31 | ** met: http://www.gnu.org/licenses/gpl-2.0.html. |
32 | ** |
33 | ** $QT_END_LICENSE$ |
34 | ** |
35 | ****************************************************************************/ |
36 | |
37 | #include "qquickimaginestyle_p.h" |
38 | |
39 | #include <QtCore/qsettings.h> |
40 | #include <QtQuickControls2/private/qquickstyle_p.h> |
41 | |
42 | QT_BEGIN_NAMESPACE |
43 | |
44 | Q_GLOBAL_STATIC_WITH_ARGS(QString, GlobalPath, (QLatin1String("qrc:/qt-project.org/imports/QtQuick/Controls.2/Imagine/images/" ))) |
45 | |
46 | static QString ensureSlash(const QString &path) |
47 | { |
48 | const QChar slash = QLatin1Char('/'); |
49 | return path.endsWith(c: slash) ? path : path + slash; |
50 | } |
51 | |
52 | QQuickImagineStyle::QQuickImagineStyle(QObject *parent) |
53 | : QQuickAttachedObject(parent), |
54 | m_path(*GlobalPath()) |
55 | { |
56 | init(); |
57 | } |
58 | |
59 | QQuickImagineStyle *QQuickImagineStyle::qmlAttachedProperties(QObject *object) |
60 | { |
61 | return new QQuickImagineStyle(object); |
62 | } |
63 | |
64 | QString QQuickImagineStyle::path() const |
65 | { |
66 | return m_path; |
67 | } |
68 | |
69 | void QQuickImagineStyle::setPath(const QString &path) |
70 | { |
71 | m_explicitPath = true; |
72 | if (m_path == path) |
73 | return; |
74 | |
75 | m_path = path; |
76 | propagatePath(); |
77 | |
78 | emit pathChanged(); |
79 | } |
80 | |
81 | void QQuickImagineStyle::inheritPath(const QString &path) |
82 | { |
83 | if (m_explicitPath || m_path == path) |
84 | return; |
85 | |
86 | m_path = path; |
87 | propagatePath(); |
88 | emit pathChanged(); |
89 | } |
90 | |
91 | void QQuickImagineStyle::propagatePath() |
92 | { |
93 | const auto styles = attachedChildren(); |
94 | for (QQuickAttachedObject *child : styles) { |
95 | QQuickImagineStyle *imagine = qobject_cast<QQuickImagineStyle *>(object: child); |
96 | if (imagine) |
97 | imagine->inheritPath(path: m_path); |
98 | } |
99 | } |
100 | |
101 | void QQuickImagineStyle::resetPath() |
102 | { |
103 | if (!m_explicitPath) |
104 | return; |
105 | |
106 | m_explicitPath = false; |
107 | QQuickImagineStyle *imagine = qobject_cast<QQuickImagineStyle *>(object: attachedParent()); |
108 | inheritPath(path: imagine ? imagine->path() : *GlobalPath()); |
109 | } |
110 | |
111 | QUrl QQuickImagineStyle::url() const |
112 | { |
113 | // Using ApplicationWindow as an example, its NinePatchImage url |
114 | // was previously assigned like this: |
115 | // |
116 | // soruce: Imagine.path + "applicationwindow-background" |
117 | // |
118 | // If Imagine.path is set to ":/images" by the user, then the final URL would be: |
119 | // |
120 | // QUrl("file:///home/user/qt/qtbase/qml/QtQuick/Controls.2/Imagine/:/images/applicationwindow-background") |
121 | // |
122 | // To ensure that the correct URL is constructed, we do it ourselves here, |
123 | // and then the control QML files use the "url" property instead. |
124 | const QString path = ensureSlash(path: m_path); |
125 | if (path.startsWith(s: QLatin1String("qrc" ))) |
126 | return QUrl(path); |
127 | |
128 | if (path.startsWith(s: QLatin1String(":/" ))) |
129 | return QUrl(QLatin1String("qrc" ) + path); |
130 | |
131 | return QUrl::fromLocalFile(localfile: path); |
132 | } |
133 | |
134 | void QQuickImagineStyle::attachedParentChange(QQuickAttachedObject *newParent, QQuickAttachedObject *oldParent) |
135 | { |
136 | Q_UNUSED(oldParent); |
137 | QQuickImagineStyle *imagine = qobject_cast<QQuickImagineStyle *>(object: newParent); |
138 | if (imagine) |
139 | inheritPath(path: imagine->path()); |
140 | } |
141 | |
142 | static QByteArray resolveSetting(const QByteArray &env, const QSharedPointer<QSettings> &settings, const QString &name) |
143 | { |
144 | QByteArray value = qgetenv(varName: env); |
145 | #if QT_CONFIG(settings) |
146 | if (value.isNull() && !settings.isNull()) |
147 | value = settings->value(key: name).toByteArray(); |
148 | #endif |
149 | return value; |
150 | } |
151 | |
152 | void QQuickImagineStyle::init() |
153 | { |
154 | static bool globalsInitialized = false; |
155 | if (!globalsInitialized) { |
156 | QSharedPointer<QSettings> settings = QQuickStylePrivate::settings(QStringLiteral("Imagine" )); |
157 | |
158 | QString path = QString::fromUtf8(str: resolveSetting(env: "QT_QUICK_CONTROLS_IMAGINE_PATH" , settings, QStringLiteral("Path" ))); |
159 | if (!path.isEmpty()) |
160 | *GlobalPath() = m_path = ensureSlash(path); |
161 | |
162 | globalsInitialized = true; |
163 | } |
164 | |
165 | QQuickAttachedObject::init(); // TODO: lazy init? |
166 | } |
167 | |
168 | QT_END_NAMESPACE |
169 | |