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Diffstat (limited to 'src/plugins/qmltooling/declarativeobserver/editor/zoomtool_p.h')
-rw-r--r-- | src/plugins/qmltooling/declarativeobserver/editor/zoomtool_p.h | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/src/plugins/qmltooling/declarativeobserver/editor/zoomtool_p.h b/src/plugins/qmltooling/declarativeobserver/editor/zoomtool_p.h new file mode 100644 index 0000000000..6734cf9ffd --- /dev/null +++ b/src/plugins/qmltooling/declarativeobserver/editor/zoomtool_p.h @@ -0,0 +1,113 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtDeclarative 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 Technology Preview License Agreement accompanying +** this package. +** +** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef ZOOMTOOL_H +#define ZOOMTOOL_H + +#include "abstractliveedittool_p.h" +#include "liverubberbandselectionmanipulator_p.h" + +QT_FORWARD_DECLARE_CLASS(QAction) + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +QT_MODULE(Declarative) + +class ZoomTool : public AbstractLiveEditTool +{ + Q_OBJECT + +public: + enum ZoomDirection { + ZoomIn, + ZoomOut + }; + + explicit ZoomTool(QDeclarativeViewObserver *view); + + virtual ~ZoomTool(); + + void mousePressEvent(QMouseEvent *event); + void mouseMoveEvent(QMouseEvent *event); + void mouseReleaseEvent(QMouseEvent *event); + void mouseDoubleClickEvent(QMouseEvent *event); + + void hoverMoveEvent(QMouseEvent *event); + void wheelEvent(QWheelEvent *event); + + void keyPressEvent(QKeyEvent *event); + void keyReleaseEvent(QKeyEvent *keyEvent); + void itemsAboutToRemoved(const QList<QGraphicsItem*> &itemList); + + void clear(); + +protected: + void selectedItemsChanged(const QList<QGraphicsItem*> &itemList); + +private slots: + void zoomTo100(); + void zoomIn(); + void zoomOut(); + +private: + qreal nextZoomScale(ZoomDirection direction) const; + void scaleView(const QPointF ¢erPos); + +private: + bool m_dragStarted; + QPoint m_mousePos; // in view coords + QPointF m_dragBeginPos; + QAction *m_zoomTo100Action; + QAction *m_zoomInAction; + QAction *m_zoomOutAction; + LiveRubberBandSelectionManipulator *m_rubberbandManipulator; + + qreal m_smoothZoomMultiplier; + qreal m_currentScale; +}; + +QT_END_NAMESPACE + +QT_END_HEADER + +#endif // ZOOMTOOL_H |