diff options
author | Lauro Neto <lauro.neto@openbossa.org> | 2010-04-27 18:12:50 -0300 |
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committer | Renato Filho <renato.filho@openbossa.org> | 2010-04-28 16:36:47 -0300 |
commit | aaece960d3cf1c9d19dd84fe8171769517647724 (patch) | |
tree | ea2e20d2c8738cc407f60b10b6cccfb4e1fc2b70 /doc/codesnippets/doc/src/snippets/eventfilters | |
parent | 685246809debe672a0007b67fe78f7c77bad6739 (diff) |
Adding ./doc from boost
Reviewer: Lauro Moura <lauro.neto@openbossa.org>
Luciano Wolf <luciano.wolf@openbossa.org>
Diffstat (limited to 'doc/codesnippets/doc/src/snippets/eventfilters')
4 files changed, 193 insertions, 0 deletions
diff --git a/doc/codesnippets/doc/src/snippets/eventfilters/eventfilters.pro b/doc/codesnippets/doc/src/snippets/eventfilters/eventfilters.pro new file mode 100644 index 000000000..b569a336e --- /dev/null +++ b/doc/codesnippets/doc/src/snippets/eventfilters/eventfilters.pro @@ -0,0 +1,3 @@ +HEADERS = filterobject.h +SOURCES = filterobject.cpp \ + main.cpp diff --git a/doc/codesnippets/doc/src/snippets/eventfilters/filterobject.cpp b/doc/codesnippets/doc/src/snippets/eventfilters/filterobject.cpp new file mode 100644 index 000000000..9cc9b6548 --- /dev/null +++ b/doc/codesnippets/doc/src/snippets/eventfilters/filterobject.cpp @@ -0,0 +1,75 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the documentation of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial Usage +** Licensees holding valid Qt Commercial licenses may use this file in +** accordance with the Qt Commercial License Agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Nokia. +** +** 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, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, 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. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at http://www.qtsoftware.com/contact. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtGui> + +#include "filterobject.h" + +FilterObject::FilterObject(QObject *parent) + : QObject(parent), target(0) +{ +} + +//! [0] +bool FilterObject::eventFilter(QObject *object, QEvent *event) +{ + if (object == target && event->type() == QEvent::KeyPress) { + QKeyEvent *keyEvent = static_cast<QKeyEvent *>(event); + if (keyEvent->key() == Qt::Key_Tab) { + // Special tab handling + return true; + } else + return false; + } + return false; +} +//! [0] + +void FilterObject::setFilteredObject(QObject *object) +{ + if (target) + target->removeEventFilter(this); + + target = object; + + if (target) + target->installEventFilter(this); +} diff --git a/doc/codesnippets/doc/src/snippets/eventfilters/filterobject.h b/doc/codesnippets/doc/src/snippets/eventfilters/filterobject.h new file mode 100644 index 000000000..f8191baa5 --- /dev/null +++ b/doc/codesnippets/doc/src/snippets/eventfilters/filterobject.h @@ -0,0 +1,60 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the documentation of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial Usage +** Licensees holding valid Qt Commercial licenses may use this file in +** accordance with the Qt Commercial License Agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Nokia. +** +** 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, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, 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. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at http://www.qtsoftware.com/contact. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef FILTEROBJECT_H +#define FILTEROBJECT_H + +#include <QObject> + +class FilterObject : public QObject +{ + Q_OBJECT + +public: + FilterObject(QObject *parent = 0); + bool eventFilter(QObject *object, QEvent *event); + void setFilteredObject(QObject *object); + +private: + QObject *target; +}; + +#endif diff --git a/doc/codesnippets/doc/src/snippets/eventfilters/main.cpp b/doc/codesnippets/doc/src/snippets/eventfilters/main.cpp new file mode 100644 index 000000000..374687aa6 --- /dev/null +++ b/doc/codesnippets/doc/src/snippets/eventfilters/main.cpp @@ -0,0 +1,55 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the documentation of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial Usage +** Licensees holding valid Qt Commercial licenses may use this file in +** accordance with the Qt Commercial License Agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Nokia. +** +** 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, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, 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. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at http://www.qtsoftware.com/contact. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QApplication> +#include <QTextEdit> + +#include "filterobject.h" + +int main(int argc, char *argv[]) +{ + QApplication app(argc, argv); + QTextEdit editor; + FilterObject filter; + filter.setFilteredObject(&editor); + editor.show(); + return app.exec(); +} |