| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
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| ** This file is part of the demonstration applications of the Qt Toolkit. |
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| ** BSD License Usage |
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| ****************************************************************************/ |
| |
| #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 }; |
| |
| explicit 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 = nullptr); |
| |
| 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 = nullptr); |
| |
| 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) override; |
| void mousePressEvent(QMouseEvent *event) override; |
| void mouseReleaseEvent(QMouseEvent *event) override; |
| void mouseMoveEvent(QMouseEvent *event) override; |
| |
| private: |
| void setCurrentShape(int index); |
| int indexOf(const QString &shapeName) const; |
| int indexAt(const QPoint &pos) const; |
| QString uniqueName(const QString &name) const; |
| |
| QVector<Shape> m_shapeList; |
| QPoint m_mousePressOffset; |
| QString m_fileName; |
| QUndoStack *m_undoStack = nullptr; |
| int m_currentIndex = -1; |
| int m_mousePressIndex = -1; |
| bool m_resizeHandlePressed = false; |
| }; |
| |
| #endif // DOCUMENT_H |