+++ /dev/null
-/****************************************************************************
-**
-** Copyright (C) Qxt Foundation. Some rights reserved.
-**
-** This file is part of the QxtCore module of the Qt eXTension library
-**
-** This library is free software; you can redistribute it and/or modify it
-** under the terms of th Common Public License, version 1.0, as published by
-** IBM.
-**
-** This file is provided "AS IS", without WARRANTIES OR CONDITIONS OF ANY
-** KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT LIMITATION, ANY
-** WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, MERCHANTABILITY OR
-** FITNESS FOR A PARTICULAR PURPOSE.
-**
-** You should have received a copy of the CPL along with this file.
-** See the LICENSE file and the cpl1.0.txt file included with the source
-** distribution for more information. If you did not receive a copy of the
-** license, contact the Qxt Foundation.
-**
-** <http://libqxt.sourceforge.net> <foundation@libqxt.org>
-**
-****************************************************************************/
-/**
-\class QxtMetaObject QxtMetaObject
-
-\ingroup QxtCore
-
-\brief provides extensions to QMetaObject
-
-including QxtMetaObject::bind \n
-
-*/
-#include "qxtmetaobject.h"
-#include "qxtboundfunction.h"
-#include "qxtboundcfunction.h"
-#include "qxtmetatype.h"
-
-#include <QByteArray>
-#include <QMetaObject>
-#include <QMetaMethod>
-#include <QtDebug>
-
-#ifndef QXT_DOXYGEN_RUN
-class QxtBoundArgument
-{
- // This class intentionally left blank
-};
-Q_DECLARE_METATYPE(QxtBoundArgument)
-
-class QxtBoundFunctionBase;
-
-QxtBoundFunction::QxtBoundFunction(QObject* parent) : QObject(parent)
-{
- // initializer only
-}
-#endif
-
-bool QxtBoundFunction::invoke(Qt::ConnectionType type, QXT_IMPL_10ARGS(QVariant))
-{
- return invoke(type, QXT_VAR_ARG(1), QXT_VAR_ARG(2), QXT_VAR_ARG(3), QXT_VAR_ARG(4), QXT_VAR_ARG(5), QXT_VAR_ARG(6), QXT_VAR_ARG(7), QXT_VAR_ARG(8), QXT_VAR_ARG(9), QXT_VAR_ARG(10));
-}
-
-bool QxtBoundFunction::invoke(Qt::ConnectionType type, QGenericReturnArgument returnValue, QXT_IMPL_10ARGS(QVariant))
-{
- return invoke(type, returnValue, QXT_VAR_ARG(1), QXT_VAR_ARG(2), QXT_VAR_ARG(3), QXT_VAR_ARG(4), QXT_VAR_ARG(5), QXT_VAR_ARG(6), QXT_VAR_ARG(7), QXT_VAR_ARG(8), QXT_VAR_ARG(9), QXT_VAR_ARG(10));
-}
-
-QxtBoundFunctionBase::QxtBoundFunctionBase(QObject* parent, QGenericArgument* params[10], QByteArray types[10]) : QxtBoundFunction(parent)
-{
- for (int i=0; i<10; i++)
- {
- if (!params[i]) break;
- if (QByteArray(params[i]->name()) == "QxtBoundArgument")
- {
- arg[i] = QGenericArgument("QxtBoundArgument", params[i]->data());
- }
- else
- {
- data[i] = qxtConstructFromGenericArgument(*params[i]);
- arg[i] = p[i] = QGenericArgument(params[i]->name(), data[i]);
- }
- bindTypes[i] = types[i];
- }
-}
-
-QxtBoundFunctionBase::~QxtBoundFunctionBase()
-{
- for (int i=0; i<10; i++)
- {
- if (arg[i].name() == 0) return;
- if (QByteArray(arg[i].name()) != "QxtBoundArgument") qxtDestroyFromGenericArgument(arg[i]);
- }
-}
-
-int QxtBoundFunctionBase::qt_metacall(QMetaObject::Call _c, int _id, void **_a)
-{
- _id = QObject::qt_metacall(_c, _id, _a);
- if (_id < 0)
- return _id;
- if (_c == QMetaObject::InvokeMetaMethod)
- {
- if (_id == 0)
- {
- for (int i = 0; i < 10; i++)
- {
- if (QByteArray(arg[i].name()) == "QxtBoundArgument")
- {
- p[i] = QGenericArgument(bindTypes[i].constData(), _a[(quintptr)(arg[i].data())]);
- }
- }
- invokeImpl(Qt::DirectConnection, QGenericReturnArgument(), p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], p[8], p[9]);
- }
- _id = -1;
- }
- return _id;
-}
-
-bool QxtBoundFunctionBase::invokeBase(Qt::ConnectionType type, QGenericReturnArgument returnValue, QXT_IMPL_10ARGS(QGenericArgument))
-{
- QGenericArgument* args[10] = { &p1, &p2, &p3, &p4, &p5, &p6, &p7, &p8, &p9, &p10 };
- for (int i = 0; i < 10; i++)
- {
- if (QByteArray(arg[i].name()) == "QxtBoundArgument")
- {
- p[i] = *args[(quintptr)(arg[i].data())-1];
- }
- }
- return invokeImpl(type, returnValue, p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], p[8], p[9]);
-}
-
-bool QxtBoundFunction::invoke(Qt::ConnectionType type, QGenericReturnArgument returnValue, QXT_IMPL_10ARGS(QGenericArgument))
-{
- return reinterpret_cast<QxtBoundFunctionBase*>(this)->invokeBase(type, returnValue, p1, p2, p3, p4, p5, p6, p7, p8, p9, p10);
-}
-
-#ifndef QXT_DOXYGEN_RUN
-class QxtBoundSlot : public QxtBoundFunctionBase
-{
-public:
- QByteArray sig;
-
- QxtBoundSlot(QObject* receiver, const char* invokable, QGenericArgument* params[10], QByteArray types[10]) : QxtBoundFunctionBase(receiver, params, types), sig(invokable)
- {
- // initializers only
- }
-
- virtual bool invokeImpl(Qt::ConnectionType type, QGenericReturnArgument returnValue, QXT_IMPL_10ARGS(QGenericArgument))
- {
- if (!QMetaObject::invokeMethod(parent(), QxtMetaObject::methodName(sig.constData()), type, returnValue, p1, p2, p3, p4, p5, p6, p7, p8, p9, p10))
- {
- qWarning() << "QxtBoundFunction: call to" << sig << "failed";
- return false;
- }
- return true;
- }
-};
-#endif
-
-namespace QxtMetaObject
-{
-
-/*!
-\relates QxtMetaObject
-
- \fn methodName(const char* method)
-
- Returns the name of the given method.
-
- Example usage:
- \code
- QByteArray method = QxtMetaObject::methodName(" int foo ( int bar, double baz )");
- // method is now "foo"
- \endcode
- */
-QByteArray methodName(const char* method)
-{
- QByteArray name = methodSignature(method);
- const int idx = name.indexOf("(");
- if (idx != -1)
- name.truncate(idx);
- return name;
-}
-
-/*!
-\relates QxtMetaObject
-
-\fn methodSignature(const char* method)
-
-Returns the signature of the given method.
- */
-QByteArray methodSignature(const char* method)
-{
- QByteArray name = QMetaObject::normalizedSignature(method);
- if (name.startsWith("1") || name.startsWith("2"))
- return name.mid(1);
- return name;
-}
-
-/*!
-\relates QxtMetaObject
-
-\fn bool isSignalOrSlot(const char* method)
-
-checks if \p method contains parantesis and begins with 1 or 2 */
-bool isSignalOrSlot (const char* method)
-{
- QByteArray m(method);
- return (m.count() && (m[0] == '1'||m[0] == '2') && m.contains('(') && m.contains(')'));
-}
-
-/**
- * \relates QxtMetaObject
- * \sa QxtMetaObject::connect
- * \sa QxtBoundFunction
- *
- * Creates a binding to the provided signal, slot, or Q_INVOKABLE method using the
- * provided parameter list. The type of each argument is deduced from the type of
- * the QVariant. This function cannot bind positional arguments; see the
- * overload using QGenericArgument.
- *
- * If the provided QObject does not implement the requested method, or if the
- * argument list is incompatible with the method's function signature, this
- * function returns NULL.
- *
- * The returned QxtBoundFunction is created as a child of the receiver.
- * Changing the parent will result in undefined behavior.
- */
-QxtBoundFunction* bind(QObject* recv, const char* invokable, QXT_IMPL_10ARGS(QVariant))
-{
- if (!recv)
- {
- qWarning() << "QxtMetaObject::bind: cannot connect to null QObject";
- return 0;
- }
-
- QVariant* args[10] = { &p1, &p2, &p3, &p4, &p5, &p6, &p7, &p8, &p9, &p10 };
- QByteArray connSlot("2"), recvSlot(QMetaObject::normalizedSignature(invokable));
- const QMetaObject* meta = recv->metaObject();
- int methodID = meta->indexOfMethod(QxtMetaObject::methodSignature(recvSlot.constData()));
- if (methodID == -1)
- {
- qWarning() << "QxtMetaObject::bind: no such method " << recvSlot;
- return 0;
- }
- QMetaMethod method = meta->method(methodID);
- int argCount = method.parameterTypes().count();
- const QList<QByteArray> paramTypes = method.parameterTypes();
-
- for (int i=0; i<argCount; i++)
- {
- if (paramTypes[i] == "QxtBoundArgument") continue;
- int type = QMetaType::type(paramTypes[i].constData());
- if (!args[i]->canConvert((QVariant::Type)type))
- {
- qWarning() << "QxtMetaObject::bind: incompatible parameter list for " << recvSlot;
- return 0;
- }
- }
-
- return QxtMetaObject::bind(recv, invokable, QXT_ARG(1), QXT_ARG(2), QXT_ARG(3), QXT_ARG(4), QXT_ARG(5), QXT_ARG(6), QXT_ARG(7), QXT_ARG(8), QXT_ARG(9), QXT_ARG(10));
-}
-
-/**
- * \relates QxtMetaObject
- * \sa QxtMetaObject::connect
- * \sa QxtBoundFunction
- * \sa QXT_BIND
- *
- * Creates a binding to the provided signal, slot, or Q_INVOKABLE method using the
- * provided parameter list. Use the Q_ARG macro to specify constant parameters, or
- * use the QXT_BIND macro to relay a parameter from a connected signal or passed
- * via the QxtBoundFunction::invoke() method.
- *
- * If the provided QObject does not implement the requested method, or if the
- * argument list is incompatible with the method's function signature, this
- * function returns NULL.
- *
- * The returned QxtBoundFunction is created as a child of the receiver.
- * Changing the parent will result in undefined behavior.
- */
-QxtBoundFunction* bind(QObject* recv, const char* invokable, QXT_IMPL_10ARGS(QGenericArgument))
-{
- if (!recv)
- {
- qWarning() << "QxtMetaObject::bind: cannot connect to null QObject";
- return 0;
- }
-
- QGenericArgument* args[10] = { &p1, &p2, &p3, &p4, &p5, &p6, &p7, &p8, &p9, &p10 };
- QByteArray connSlot("2"), recvSlot(QMetaObject::normalizedSignature(invokable)), bindTypes[10];
- const QMetaObject* meta = recv->metaObject();
- int methodID = meta->indexOfMethod(QxtMetaObject::methodSignature(recvSlot.constData()).constData());
- if (methodID == -1)
- {
- qWarning() << "QxtMetaObject::bind: no such method " << recvSlot;
- return 0;
- }
- QMetaMethod method = meta->method(methodID);
- int argCount = method.parameterTypes().count();
-
- connSlot += QxtMetaObject::methodName(invokable) + "(";
- for (int i=0; i<10; i++)
- {
- if (args[i]->name() == 0) break; // done
- if (i >= argCount)
- {
- qWarning() << "QxtMetaObject::bind: too many arguments passed to " << invokable;
- return 0;
- }
- if (i > 0) connSlot += ","; // argument separator
- if (QByteArray(args[i]->name()) == "QxtBoundArgument")
- {
- Q_ASSERT_X((quintptr)(args[i]->data()) > 0 && (quintptr)(args[i]->data()) <= 10, "QXT_BIND", "invalid argument number");
- connSlot += method.parameterTypes()[i];
- bindTypes[i] = method.parameterTypes()[i];
- }
- else
- {
- connSlot += args[i]->name(); // type name
- }
- }
- connSlot = QMetaObject::normalizedSignature(connSlot += ")");
-
- if (!QMetaObject::checkConnectArgs(recvSlot.constData(), connSlot.constData()))
- {
- qWarning() << "QxtMetaObject::bind: provided parameters " << connSlot.mid(connSlot.indexOf('(')) << " is incompatible with " << invokable;
- return 0;
- }
-
- return new QxtBoundSlot(recv, invokable, args, bindTypes);
-}
-
-/**
-\relates QxtMetaObject
-\fn connect(QObject* sender, const char* signal, QxtBoundFunction* slot, Qt::ConnectionType type) {
-
-connects a signal to a QxtBoundFunction \n
- */
-bool connect(QObject* sender, const char* signal, QxtBoundFunction* slot, Qt::ConnectionType type)
-{
- const QMetaObject* meta = sender->metaObject();
- int methodID = meta->indexOfMethod(meta->normalizedSignature(signal).mid(1).constData());
- if (methodID < 0)
- {
- qWarning() << "QxtMetaObject::connect: no such signal: " << QByteArray(signal).mid(1);
- return false;
- }
-
- return QMetaObject::connect(sender, methodID, slot, QObject::staticMetaObject.methodCount(), (int)(type));
-}
-
-}
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