/****************************************************************************
 **
 ** Copyright (C) 2005-2007 Trolltech ASA. All rights reserved.
 **
 ** This file is part of the demonstration applications of the Qt Toolkit.
 **
 ** This file may be used under the terms of the GNU General Public
 ** License version 2.0 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 GNU
 ** General Public Licensing requirements will be met:
 ** http://trolltech.com/products/qt/licenses/licensing/opensource/
 **
 ** If you are unsure which license is appropriate for your use, please
 ** review the following information:
 ** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
 ** or contact the sales department at sales@trolltech.com.
 **
 ** In addition, as a special exception, Trolltech gives you certain
 ** additional rights. These rights are described in the Trolltech GPL
 ** Exception version 1.0, which can be found at
 ** http://www.trolltech.com/products/qt/gplexception/ and in the file
 ** GPL_EXCEPTION.txt in this package.
 **
 ** In addition, as a special exception, Trolltech, as the sole copyright
 ** holder for Qt Designer, grants users of the Qt/Eclipse Integration
 ** plug-in the right for the Qt/Eclipse Integration to link to
 ** functionality provided by Qt Designer and its related libraries.
 **
 ** Trolltech reserves all rights not expressly granted herein.
 **
 ** Trolltech ASA (c) 2007
 **
 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 **
 ****************************************************************************/
 
 #ifndef DOCUMENT_H
 #define DOCUMENT_H
 
 #include <QWidget>
 
 class QUndoStack;
 class QTextStream;
 
 class Shape
 {
 public:
     enum Type { Rectangle, Circle, Triangle };
 
     Shape(Type type = Rectangle, const QColor &color = Qt::red, const QRect &rect = QRect());
 
     Type type() const;
     QString name() const;
     QRect rect() const;
     QRect resizeHandle() const;
     QColor color() const;
 
     static QString typeToString(Type type);
     static Type stringToType(const QString &s, bool *ok = 0);
 
     static const QSize minSize;
 
 private:
     Type m_type;
     QRect m_rect;
     QColor m_color;
     QString m_name;
 
     friend class Document;
 };
 
 class Document : public QWidget
 {
     Q_OBJECT
 
 public:
     Document(QWidget *parent = 0);
 
     QString addShape(const Shape &shape);
     void deleteShape(const QString &shapeName);
     Shape shape(const QString &shapeName) const;
     QString currentShapeName() const;
 
     void setShapeRect(const QString &shapeName, const QRect &rect);
     void setShapeColor(const QString &shapeName, const QColor &color);
 
     bool load(QTextStream &stream);
     void save(QTextStream &stream);
 
     QString fileName() const;
     void setFileName(const QString &fileName);
 
     QUndoStack *undoStack() const;
 
 signals:
     void currentShapeChanged(const QString &shapeName);
 
 protected:
     void paintEvent(QPaintEvent *event);
     void mousePressEvent(QMouseEvent *event);
     void mouseReleaseEvent(QMouseEvent *event);
     void mouseMoveEvent(QMouseEvent *event);
 
 private:
     void setCurrentShape(int index);
     int indexOf(const QString &shapeName) const;
     int indexAt(const QPoint &pos) const;
     QString uniqueName(const QString &name) const;
 
     QList<Shape> m_shapeList;
     int m_currentIndex;
     int m_mousePressIndex;
     QPoint m_mousePressOffset;
     bool m_resizeHandlePressed;
     QString m_fileName;
 
     QUndoStack *m_undoStack;
 };
 
 #endif // DOCUMENT_H