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Diffstat (limited to 'src/platformsupport/jniconvenience/qjniobject_p.h')
| -rw-r--r-- | src/platformsupport/jniconvenience/qjniobject_p.h | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/src/platformsupport/jniconvenience/qjniobject_p.h b/src/platformsupport/jniconvenience/qjniobject_p.h new file mode 100644 index 0000000000..6874765f06 --- /dev/null +++ b/src/platformsupport/jniconvenience/qjniobject_p.h @@ -0,0 +1,169 @@ +/**************************************************************************** +** +** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** 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 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: 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. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QJNIOBJECT_H +#define QJNIOBJECT_H + +#include <qglobal.h> +#include <jni.h> + +QT_BEGIN_NAMESPACE + +template <typename T> +class QJNILocalRef; + +/** + * Allows to wrap any Java class and partially hide some of the jni calls. + * + * Usage example: + * + * QJNIObject javaString("java/lang/String"); + * jchar char = javaString.callMethod<jchar>("charAt", "(I)C", 0); + * + * ---- + * + * jstring string = QJNIObject::callStaticMethod<jstring>("java/lang/String", + * "valueOf", + * "(I)Ljava/lang/String;", 2); + * + * ---- + * + * // Constructor with argument + * jstring someString; + * QJNIObject someObject("java/some/Class", "(Ljava/lang/String;)V", someString); + * someObject.setField<jint>("fieldName", 10); + * someObject.callMethod<void>("doStuff"); + */ +class QJNIObject +{ +public: + QJNIObject(const char *className); + QJNIObject(const char *className, const char *sig, ...); + QJNIObject(jclass clazz); + QJNIObject(jclass clazz, const char *sig, ...); + QJNIObject(jobject obj); + virtual ~QJNIObject(); + + static bool isClassAvailable(const char *className); + + bool isValid() const { return m_jobject != 0; } + jobject object() const { return m_jobject; } + + template <typename T> + T callMethod(const char *methodName); + template <typename T> + T callMethod(const char *methodName, const char *sig, ...); + template <typename T> + QJNILocalRef<T> callObjectMethod(const char *methodName); + template <typename T> + QJNILocalRef<T> callObjectMethod(const char *methodName, const char *sig, ...); + + template <typename T> + static T callStaticMethod(const char *className, const char *methodName); + template <typename T> + static T callStaticMethod(const char *className, const char *methodName, const char *sig, ...); + template <typename T> + static QJNILocalRef<T> callStaticObjectMethod(const char *className, const char *methodName); + template <typename T> + static QJNILocalRef<T> callStaticObjectMethod(const char *className, + const char *methodName, + const char *sig, ...); + template <typename T> + static T callStaticMethod(jclass clazz, const char *methodName); + template <typename T> + static T callStaticMethod(jclass clazz, const char *methodName, const char *sig, ...); + template <typename T> + static QJNILocalRef<T> callStaticObjectMethod(jclass clazz, const char *methodName); + template <typename T> + static QJNILocalRef<T> callStaticObjectMethod(jclass clazz, + const char *methodName, + const char *sig, ...); + + template <typename T> + T getField(const char *fieldName); + template <typename T> + T getField(const char *fieldName, const char *sig); + template <typename T> + QJNILocalRef<T> getObjectField(const char *fieldName); + template <typename T> + QJNILocalRef<T> getObjectField(const char *fieldName, const char *sig); + + template <typename T> + void setField(const char *fieldName, T value); + template <typename T> + void setField(const char *fieldName, const char *sig, T value); + + template <typename T> + static QJNILocalRef<T> getStaticObjectField(const char *className, const char *fieldName); + template <typename T> + static QJNILocalRef<T> getStaticObjectField(const char *className, + const char *fieldName, + const char *sig); + template <typename T> + static T getStaticField(const char *className, const char *fieldName); + template <typename T> + static QJNILocalRef<T> getStaticObjectField(jclass clazz, const char *fieldName); + template <typename T> + static QJNILocalRef<T> getStaticObjectField(jclass clazz, const char *fieldName, const char *sig); + template <typename T> + static T getStaticField(jclass clazz, const char *fieldName); + + template <typename T> + static void setStaticField(const char *className, + const char *fieldName, + const char *sig, + T value); + template <typename T> + static void setStaticField(const char *className, const char *fieldName, T value); + template <typename T> + static void setStaticField(jclass clazz, const char *fieldName, const char *sig, T value); + template <typename T> + static void setStaticField(jclass clazz, const char *fieldName, T value); + +protected: + jobject m_jobject; + jclass m_jclass; + bool m_own_jclass; +}; + +QT_END_NAMESPACE + +#endif // QJNIOBJECT_H |