29c99bddbf
Task-number: QTBUG-84469 Change-Id: Id14119168bb1bf11f99bda7ef6ee9cf51bcfab2e Reviewed-by: Sona Kurazyan <sona.kurazyan@qt.io>
134 lines
4.4 KiB
C++
134 lines
4.4 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the demonstration applications of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** BSD License Usage
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** Alternatively, you may use this file under the terms of the BSD license
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** as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of The Qt Company Ltd nor the names of its
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** contributors may be used to endorse or promote products derived
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** from this software without specific prior written permission.
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**
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef DOCUMENT_H
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#define DOCUMENT_H
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#include <QWidget>
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QT_FORWARD_DECLARE_CLASS(QUndoStack)
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QT_FORWARD_DECLARE_CLASS(QTextStream)
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class Shape
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{
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public:
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enum Type { Rectangle, Circle, Triangle };
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explicit Shape(Type type = Rectangle, const QColor &color = Qt::red, const QRect &rect = QRect());
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Type type() const;
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QString name() const;
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QRect rect() const;
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QRect resizeHandle() const;
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QColor color() const;
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static QString typeToString(Type type);
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static Type stringToType(const QString &s, bool *ok = nullptr);
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static const QSize minSize;
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private:
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Type m_type;
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QRect m_rect;
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QColor m_color;
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QString m_name;
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friend class Document;
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};
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class Document : public QWidget
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{
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Q_OBJECT
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public:
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Document(QWidget *parent = nullptr);
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QString addShape(const Shape &shape);
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void deleteShape(const QString &shapeName);
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Shape shape(const QString &shapeName) const;
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QString currentShapeName() const;
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void setShapeRect(const QString &shapeName, const QRect &rect);
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void setShapeColor(const QString &shapeName, const QColor &color);
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bool load(QTextStream &stream);
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void save(QTextStream &stream);
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QString fileName() const;
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void setFileName(const QString &fileName);
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QUndoStack *undoStack() const;
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signals:
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void currentShapeChanged(const QString &shapeName);
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protected:
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void paintEvent(QPaintEvent *event) override;
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void mousePressEvent(QMouseEvent *event) override;
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void mouseReleaseEvent(QMouseEvent *event) override;
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void mouseMoveEvent(QMouseEvent *event) override;
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private:
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void setCurrentShape(int index);
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int indexOf(const QString &shapeName) const;
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int indexAt(const QPoint &pos) const;
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QString uniqueName(const QString &name) const;
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QList<Shape> m_shapeList;
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QPoint m_mousePressOffset;
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QString m_fileName;
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QUndoStack *m_undoStack = nullptr;
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int m_currentIndex = -1;
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int m_mousePressIndex = -1;
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bool m_resizeHandlePressed = false;
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};
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#endif // DOCUMENT_H
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