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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
ensureSlash(const QString & path)46 static QString ensureSlash(const QString &path)
47 {
48 const QChar slash = QLatin1Char('/');
49 return path.endsWith(slash) ? path : path + slash;
50 }
51
QQuickImagineStyle(QObject * parent)52 QQuickImagineStyle::QQuickImagineStyle(QObject *parent)
53 : QQuickAttachedObject(parent),
54 m_path(*GlobalPath())
55 {
56 init();
57 }
58
qmlAttachedProperties(QObject * object)59 QQuickImagineStyle *QQuickImagineStyle::qmlAttachedProperties(QObject *object)
60 {
61 return new QQuickImagineStyle(object);
62 }
63
path() const64 QString QQuickImagineStyle::path() const
65 {
66 return m_path;
67 }
68
setPath(const QString & path)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
inheritPath(const QString & path)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
propagatePath()91 void QQuickImagineStyle::propagatePath()
92 {
93 const auto styles = attachedChildren();
94 for (QQuickAttachedObject *child : styles) {
95 QQuickImagineStyle *imagine = qobject_cast<QQuickImagineStyle *>(child);
96 if (imagine)
97 imagine->inheritPath(m_path);
98 }
99 }
100
resetPath()101 void QQuickImagineStyle::resetPath()
102 {
103 if (!m_explicitPath)
104 return;
105
106 m_explicitPath = false;
107 QQuickImagineStyle *imagine = qobject_cast<QQuickImagineStyle *>(attachedParent());
108 inheritPath(imagine ? imagine->path() : *GlobalPath());
109 }
110
url() const111 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(m_path);
125 if (path.startsWith(QLatin1String("qrc")))
126 return QUrl(path);
127
128 if (path.startsWith(QLatin1String(":/")))
129 return QUrl(QLatin1String("qrc") + path);
130
131 return QUrl::fromLocalFile(path);
132 }
133
attachedParentChange(QQuickAttachedObject * newParent,QQuickAttachedObject * oldParent)134 void QQuickImagineStyle::attachedParentChange(QQuickAttachedObject *newParent, QQuickAttachedObject *oldParent)
135 {
136 Q_UNUSED(oldParent);
137 QQuickImagineStyle *imagine = qobject_cast<QQuickImagineStyle *>(newParent);
138 if (imagine)
139 inheritPath(imagine->path());
140 }
141
resolveSetting(const QByteArray & env,const QSharedPointer<QSettings> & settings,const QString & name)142 static QByteArray resolveSetting(const QByteArray &env, const QSharedPointer<QSettings> &settings, const QString &name)
143 {
144 QByteArray value = qgetenv(env);
145 #if QT_CONFIG(settings)
146 if (value.isNull() && !settings.isNull())
147 value = settings->value(name).toByteArray();
148 #endif
149 return value;
150 }
151
init()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(resolveSetting("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