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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the demonstration applications 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.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef DOCUMENT_H
+#define DOCUMENT_H
+
+#include <QWidget>
+
+QT_FORWARD_DECLARE_CLASS(QUndoStack)
+QT_FORWARD_DECLARE_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