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Diffstat (limited to 'examples/widgets/graphicsview/diagramscene/diagramscene.h')
-rw-r--r-- | examples/widgets/graphicsview/diagramscene/diagramscene.h | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/examples/widgets/graphicsview/diagramscene/diagramscene.h b/examples/widgets/graphicsview/diagramscene/diagramscene.h new file mode 100644 index 0000000000..9f65eba890 --- /dev/null +++ b/examples/widgets/graphicsview/diagramscene/diagramscene.h @@ -0,0 +1,112 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/ +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef DIAGRAMSCENE_H +#define DIAGRAMSCENE_H + +#include <QGraphicsScene> +#include "diagramitem.h" +#include "diagramtextitem.h" + +QT_BEGIN_NAMESPACE +class QGraphicsSceneMouseEvent; +class QMenu; +class QPointF; +class QGraphicsLineItem; +class QFont; +class QGraphicsTextItem; +class QColor; +QT_END_NAMESPACE + +//! [0] +class DiagramScene : public QGraphicsScene +{ + Q_OBJECT + +public: + enum Mode { InsertItem, InsertLine, InsertText, MoveItem }; + + DiagramScene(QMenu *itemMenu, QObject *parent = 0); + QFont font() const + { return myFont; } + QColor textColor() const + { return myTextColor; } + QColor itemColor() const + { return myItemColor; } + QColor lineColor() const + { return myLineColor; } + void setLineColor(const QColor &color); + void setTextColor(const QColor &color); + void setItemColor(const QColor &color); + void setFont(const QFont &font); + +public slots: + void setMode(Mode mode); + void setItemType(DiagramItem::DiagramType type); + void editorLostFocus(DiagramTextItem *item); + +signals: + void itemInserted(DiagramItem *item); + void textInserted(QGraphicsTextItem *item); + void itemSelected(QGraphicsItem *item); + +protected: + void mousePressEvent(QGraphicsSceneMouseEvent *mouseEvent); + void mouseMoveEvent(QGraphicsSceneMouseEvent *mouseEvent); + void mouseReleaseEvent(QGraphicsSceneMouseEvent *mouseEvent); + +private: + bool isItemChange(int type); + + DiagramItem::DiagramType myItemType; + QMenu *myItemMenu; + Mode myMode; + bool leftButtonDown; + QPointF startPoint; + QGraphicsLineItem *line; + QFont myFont; + DiagramTextItem *textItem; + QColor myTextColor; + QColor myItemColor; + QColor myLineColor; +}; +//! [0] + +#endif |