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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#ifndef PUZZLEWIDGET_H
#define PUZZLEWIDGET_H
#include <QPoint>
#include <QPixmap>
#include <QList>
#include <QWidget>
QT_BEGIN_NAMESPACE
class QDragEnterEvent;
class QDropEvent;
class QMouseEvent;
QT_END_NAMESPACE
class PuzzleWidget : public QWidget
{
Q_OBJECT
public:
explicit PuzzleWidget(int imageSize, QWidget *parent = nullptr);
void clear();
int pieceSize() const;
int imageSize() const;
signals:
void puzzleCompleted();
protected:
void dragEnterEvent(QDragEnterEvent *event) override;
void dragLeaveEvent(QDragLeaveEvent *event) override;
void dragMoveEvent(QDragMoveEvent *event) override;
void dropEvent(QDropEvent *event) override;
void mousePressEvent(QMouseEvent *event) override;
void paintEvent(QPaintEvent *event) override;
private:
struct Piece {
QPixmap pixmap;
QRect rect;
QPoint location;
};
int findPiece(const QRect &pieceRect) const;
const QRect targetSquare(const QPoint &position) const;
QList<Piece> pieces;
QRect highlightedRect;
int inPlace;
int m_ImageSize;
};
#endif // PUZZLEWIDGET_H
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