54 lines
1.3 KiB
C++
54 lines
1.3 KiB
C++
// Copyright (C) 2016 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
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#ifndef SCRIBBLEAREA_H
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#define SCRIBBLEAREA_H
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#include <QColor>
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#include <QImage>
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#include <QPoint>
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#include <QWidget>
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//! [0]
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class ScribbleArea : public QWidget
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{
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Q_OBJECT
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public:
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ScribbleArea(QWidget *parent = nullptr);
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bool openImage(const QString &fileName);
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bool saveImage(const QString &fileName, const char *fileFormat);
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void setPenColor(const QColor &newColor);
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void setPenWidth(int newWidth);
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bool isModified() const { return modified; }
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QColor penColor() const { return myPenColor; }
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int penWidth() const { return myPenWidth; }
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public slots:
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void clearImage();
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void print();
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protected:
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void mousePressEvent(QMouseEvent *event) override;
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void mouseMoveEvent(QMouseEvent *event) override;
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void mouseReleaseEvent(QMouseEvent *event) override;
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void paintEvent(QPaintEvent *event) override;
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void resizeEvent(QResizeEvent *event) override;
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private:
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void drawLineTo(const QPoint &endPoint);
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void resizeImage(QImage *image, const QSize &newSize);
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bool modified = false;
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bool scribbling = false;
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int myPenWidth = 1;
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QColor myPenColor = Qt::blue;
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QImage image;
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QPoint lastPoint;
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};
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//! [0]
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#endif
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