| 1 | /****************************************************************************
|
|---|
| 2 | **
|
|---|
| 3 | ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
|
|---|
| 4 | ** All rights reserved.
|
|---|
| 5 | ** Contact: Nokia Corporation (qt-info@nokia.com)
|
|---|
| 6 | **
|
|---|
| 7 | ** This file is part of the examples of the Qt Toolkit.
|
|---|
| 8 | **
|
|---|
| 9 | ** $QT_BEGIN_LICENSE:BSD$
|
|---|
| 10 | ** You may use this file under the terms of the BSD license as follows:
|
|---|
| 11 | **
|
|---|
| 12 | ** "Redistribution and use in source and binary forms, with or without
|
|---|
| 13 | ** modification, are permitted provided that the following conditions are
|
|---|
| 14 | ** met:
|
|---|
| 15 | ** * Redistributions of source code must retain the above copyright
|
|---|
| 16 | ** notice, this list of conditions and the following disclaimer.
|
|---|
| 17 | ** * Redistributions in binary form must reproduce the above copyright
|
|---|
| 18 | ** notice, this list of conditions and the following disclaimer in
|
|---|
| 19 | ** the documentation and/or other materials provided with the
|
|---|
| 20 | ** distribution.
|
|---|
| 21 | ** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
|
|---|
| 22 | ** the names of its contributors may be used to endorse or promote
|
|---|
| 23 | ** products derived from this software without specific prior written
|
|---|
| 24 | ** permission.
|
|---|
| 25 | **
|
|---|
| 26 | ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|---|
| 27 | ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|---|
| 28 | ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|---|
| 29 | ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|---|
| 30 | ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|---|
| 31 | ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|---|
| 32 | ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|---|
| 33 | ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|---|
| 34 | ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|---|
| 35 | ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|---|
| 36 | ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
|
|---|
| 37 | ** $QT_END_LICENSE$
|
|---|
| 38 | **
|
|---|
| 39 | ****************************************************************************/
|
|---|
| 40 |
|
|---|
| 41 | #ifndef DIAGRAMSCENE_H
|
|---|
| 42 | #define DIAGRAMSCENE_H
|
|---|
| 43 |
|
|---|
| 44 | #include <QGraphicsScene>
|
|---|
| 45 | #include "diagramitem.h"
|
|---|
| 46 | #include "diagramtextitem.h"
|
|---|
| 47 |
|
|---|
| 48 | QT_BEGIN_NAMESPACE
|
|---|
| 49 | class QGraphicsSceneMouseEvent;
|
|---|
| 50 | class QMenu;
|
|---|
| 51 | class QPointF;
|
|---|
| 52 | class QGraphicsLineItem;
|
|---|
| 53 | class QFont;
|
|---|
| 54 | class QGraphicsTextItem;
|
|---|
| 55 | class QColor;
|
|---|
| 56 | QT_END_NAMESPACE
|
|---|
| 57 |
|
|---|
| 58 | //! [0]
|
|---|
| 59 | class DiagramScene : public QGraphicsScene
|
|---|
| 60 | {
|
|---|
| 61 | Q_OBJECT
|
|---|
| 62 |
|
|---|
| 63 | public:
|
|---|
| 64 | enum Mode { InsertItem, InsertLine, InsertText, MoveItem };
|
|---|
| 65 |
|
|---|
| 66 | DiagramScene(QMenu *itemMenu, QObject *parent = 0);
|
|---|
| 67 | QFont font() const
|
|---|
| 68 | { return myFont; }
|
|---|
| 69 | QColor textColor() const
|
|---|
| 70 | { return myTextColor; }
|
|---|
| 71 | QColor itemColor() const
|
|---|
| 72 | { return myItemColor; }
|
|---|
| 73 | QColor lineColor() const
|
|---|
| 74 | { return myLineColor; }
|
|---|
| 75 | void setLineColor(const QColor &color);
|
|---|
| 76 | void setTextColor(const QColor &color);
|
|---|
| 77 | void setItemColor(const QColor &color);
|
|---|
| 78 | void setFont(const QFont &font);
|
|---|
| 79 |
|
|---|
| 80 | public slots:
|
|---|
| 81 | void setMode(Mode mode);
|
|---|
| 82 | void setItemType(DiagramItem::DiagramType type);
|
|---|
| 83 | void editorLostFocus(DiagramTextItem *item);
|
|---|
| 84 |
|
|---|
| 85 | signals:
|
|---|
| 86 | void itemInserted(DiagramItem *item);
|
|---|
| 87 | void textInserted(QGraphicsTextItem *item);
|
|---|
| 88 | void itemSelected(QGraphicsItem *item);
|
|---|
| 89 |
|
|---|
| 90 | protected:
|
|---|
| 91 | void mousePressEvent(QGraphicsSceneMouseEvent *mouseEvent);
|
|---|
| 92 | void mouseMoveEvent(QGraphicsSceneMouseEvent *mouseEvent);
|
|---|
| 93 | void mouseReleaseEvent(QGraphicsSceneMouseEvent *mouseEvent);
|
|---|
| 94 |
|
|---|
| 95 | private:
|
|---|
| 96 | bool isItemChange(int type);
|
|---|
| 97 |
|
|---|
| 98 | DiagramItem::DiagramType myItemType;
|
|---|
| 99 | QMenu *myItemMenu;
|
|---|
| 100 | Mode myMode;
|
|---|
| 101 | bool leftButtonDown;
|
|---|
| 102 | QPointF startPoint;
|
|---|
| 103 | QGraphicsLineItem *line;
|
|---|
| 104 | QFont myFont;
|
|---|
| 105 | DiagramTextItem *textItem;
|
|---|
| 106 | QColor myTextColor;
|
|---|
| 107 | QColor myItemColor;
|
|---|
| 108 | QColor myLineColor;
|
|---|
| 109 | };
|
|---|
| 110 | //! [0]
|
|---|
| 111 |
|
|---|
| 112 | #endif
|
|---|
