Migrate gui dependencies from QtQml to QtQuick.

Ensure that users of declarative that have no need for functionality
provided by the Qt Gui module do not have to link against it.

Any use of QtGui functionality is delegated to providers that can
be installed by another library; QtQuick adds default providers
for this functionality when linked against QtQml.

Task-number: QTBUG-24559
Change-Id: I5e6a58a4198732dc2f8f52f71abfa1152b871aa7
Reviewed-by: Martin Jones <martin.jones@nokia.com>

1 files changed, 82 insertions, 1 deletions

diff --git a/src/qml/qml/qqmlglobal_p.h b/src/qml/qml/qqmlglobal_p.h
index c41b823e60..2356b2d122 100644
--- a/src/qml/qml/qqmlglobal_p.h
+++ b/src/qml/qml/qqmlglobal_p.h
@@ -42,7 +42,7 @@
 #ifndef QQMLGLOBAL_H
 #define QQMLGLOBAL_H
 
-#include <QtCore/qglobal.h>
+#include <private/qtqmlglobal_p.h>
 #include <QtCore/QObject>
 
 QT_BEGIN_HEADER
@@ -122,6 +122,87 @@ inline void QQml_setParent_noEvent(QObject *object, QObject *parent)
     static_cast<QQmlGraphics_DerivedObject *>(object)->setParent_noEvent(parent);
 }
 
+
+class QQmlValueType;
+
+class Q_QML_PRIVATE_EXPORT QQmlValueTypeProvider
+{
+public:
+    QQmlValueTypeProvider();
+
+    QQmlValueType *createValueType(int);
+
+    bool initValueType(int, void *, size_t);
+    bool destroyValueType(int, void *, size_t);
+    bool copyValueType(int, const void *, void *, size_t);
+
+    QVariant createValueType(int, int, const void *[]);
+    bool createValueFromString(int, const QString &, void *, size_t);
+    bool createStringFromValue(int, const void *, QString *);
+
+    QVariant createVariantFromString(const QString &);
+    QVariant createVariantFromString(int, const QString &, bool *);
+
+    bool storeValueType(int, const void *, void *, size_t);
+    bool readValueType(int, const void *, int, void *);
+    bool writeValueType(int, const void *, void *, size_t);
+
+private:
+    virtual bool create(int, QQmlValueType *&);
+
+    virtual bool init(int, void *, size_t);
+    virtual bool destroy(int, void *, size_t);
+    virtual bool copy(int, const void *, void *, size_t);
+
+    virtual bool create(int, int, const void *[], QVariant *);
+    virtual bool createFromString(int, const QString &, void *, size_t);
+    virtual bool createStringFrom(int, const void *, QString *);
+
+    virtual bool variantFromString(const QString &, QVariant *);
+    virtual bool variantFromString(int, const QString &, QVariant *);
+
+    virtual bool store(int, const void *, void *, size_t);
+    virtual bool read(int, const void *, int, void *);
+    virtual bool write(int, const void *, void *, size_t);
+
+    friend Q_QML_PRIVATE_EXPORT void QQml_addValueTypeProvider(QQmlValueTypeProvider *);
+
+    QQmlValueTypeProvider *next;
+};
+
+Q_QML_PRIVATE_EXPORT void QQml_addValueTypeProvider(QQmlValueTypeProvider *);
+Q_AUTOTEST_EXPORT QQmlValueTypeProvider *QQml_valueTypeProvider();
+
+
+class Q_QML_PRIVATE_EXPORT QQmlColorProvider
+{
+public:
+    virtual QVariant colorFromString(const QString &, bool *);
+    virtual unsigned rgbaFromString(const QString &, bool *);
+
+    virtual QVariant fromRgbF(double, double, double, double);
+    virtual QVariant fromHslF(double, double, double, double);
+    virtual QVariant lighter(const QVariant &, qreal);
+    virtual QVariant darker(const QVariant &, qreal);
+    virtual QVariant tint(const QVariant &, const QVariant &);
+};
+
+Q_QML_PRIVATE_EXPORT QQmlColorProvider *QQml_setColorProvider(QQmlColorProvider *);
+Q_AUTOTEST_EXPORT QQmlColorProvider *QQml_colorProvider();
+
+
+class Q_QML_PRIVATE_EXPORT QQmlGuiProvider
+{
+public:
+    virtual QObject *application(QObject *parent);
+    virtual QObject *inputMethod();
+    virtual QStringList fontFamilies();
+    virtual bool openUrlExternally(QUrl &);
+};
+
+Q_QML_PRIVATE_EXPORT QQmlGuiProvider *QQml_setGuiProvider(QQmlGuiProvider *);
+Q_AUTOTEST_EXPORT QQmlGuiProvider *QQml_guiProvider();
+
 QT_END_NAMESPACE
 
 QT_END_HEADER