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Diffstat (limited to 'examples/animation/research/propertytransform/qpropertytransform.h')
| -rw-r--r-- | examples/animation/research/propertytransform/qpropertytransform.h | 119 |
1 files changed, 0 insertions, 119 deletions
diff --git a/examples/animation/research/propertytransform/qpropertytransform.h b/examples/animation/research/propertytransform/qpropertytransform.h deleted file mode 100644 index e27987f..0000000 --- a/examples/animation/research/propertytransform/qpropertytransform.h +++ /dev/null @@ -1,119 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). -** Contact: Qt Software Information (qt-info@nokia.com) -** -** This file is part of the QtCore module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** No Commercial Usage -** This file contains pre-release code and may not be distributed. -** You may use this file in accordance with the terms and conditions -** contained in the either Technology Preview License Agreement or the -** Beta Release License Agreement. -** -** 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 qt-sales@nokia.com. -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include <QtCore/QObject> -#include <QtCore/QPoint> -#include <QtGui/QGraphicsItem> -#include <QtGui/QTransform> -#include <QtCore/QDebug> - -/** - * Experimental. - * Pros: - * 1. Does not add ugly/confusing API to QGraphicsItem. - * - * Cons: - * 1. apply() /m_item->setTransform() is called too many times. (FIXED NOW?) - * - * - */ -class QPropertyTransform : public QObject { - Q_OBJECT -public: - Q_PROPERTY(QPointF center READ center WRITE setCenter); - Q_PROPERTY(qreal rotation READ rotation WRITE setRotation); - Q_PROPERTY(qreal scaleX READ scaleX WRITE setScaleX); - Q_PROPERTY(qreal scaleY READ scaleY WRITE setScaleY); -public: - QPropertyTransform() : m_item(0), m_rotationZ(0), m_scaleX(1.), m_scaleY(1.) {} - - void setTargetItem(QGraphicsItem *item) { - m_item = item; - } - - void setCenter(const QPointF ¢er) { - m_center = center; - apply(); - } - - QPointF center() const { return m_center; } - - void setRotation(qreal rotation) { - m_rotationZ = rotation; - apply(); - } - - qreal rotation() const { return m_rotationZ; } - - void setScaleX(qreal scale) { - m_scaleX = scale; - apply(); - } - - qreal scaleX() const { return m_scaleX; } - - void setScaleY(qreal scale) { - m_scaleY = scale; - apply(); - } - - qreal scaleY() const { return m_scaleY; } - -private: - QTransform transform() const { - return QTransform().translate(m_center.x(), m_center.y()) - .rotate(m_rotationZ) - .scale(m_scaleX, m_scaleY) - .translate(-m_center.x(), -m_center.y()); - } - - void apply() { - if (m_item) - m_item->setTransform(transform()); - } - - QGraphicsItem *m_item; - QPointF m_center; - qreal m_rotationZ; - qreal m_scaleX; - qreal m_scaleY; -}; - |