qt 6.5.1 original

examples/widgets/painting/affine/xform.h

@@ -0,0 +1,108 @@
+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#ifndef XFORM_H
+#define XFORM_H
+
+#include "arthurwidgets.h"
+
+#include <QBasicTimer>
+#include <QPolygonF>
+
+class HoverPoints;
+
+QT_BEGIN_NAMESPACE
+class QLineEdit;
+QT_END_NAMESPACE
+
+class XFormView : public ArthurFrame
+{
+public:
+    Q_OBJECT
+
+    Q_PROPERTY(XFormType type READ type WRITE setType)
+    Q_PROPERTY(bool animation READ animation WRITE setAnimation)
+    Q_PROPERTY(qreal shear READ shear WRITE setShear)
+    Q_PROPERTY(qreal rotation READ rotation WRITE setRotation)
+    Q_PROPERTY(qreal scale READ scale WRITE setScale)
+    Q_PROPERTY(QString text READ text WRITE setText)
+    Q_PROPERTY(QPixmap pixmap READ pixmap WRITE setPixmap)
+    Q_ENUMS(XFormType)
+
+public:
+    enum XFormType { VectorType, PixmapType, TextType };
+
+    XFormView(QWidget *parent);
+    void paint(QPainter *) override;
+    void drawVectorType(QPainter *painter);
+    void drawPixmapType(QPainter *painter);
+    void drawTextType(QPainter *painter);
+    QSize sizeHint() const override { return QSize(500, 500); }
+
+    void mousePressEvent(QMouseEvent *e) override;
+    void resizeEvent(QResizeEvent *e) override;
+    HoverPoints *hoverPoints() { return m_hoverPoints; }
+
+    bool animation() const { return timer.isActive(); }
+    qreal shear() const { return m_shear; }
+    qreal scale() const { return m_scale; }
+    qreal rotation() const { return m_rotation; }
+    void setShear(qreal s);
+    void setScale(qreal s);
+    void setRotation(qreal r);
+
+    XFormType type() const;
+    QPixmap pixmap() const;
+    QString text() const;
+
+public slots:
+    void setAnimation(bool animate);
+    void updateControlPoints(const QPolygonF &);
+    void changeRotation(int rotation);
+    void changeScale(int scale);
+    void changeShear(int shear);
+
+    void setText(const QString &);
+    void setPixmap(const QPixmap &);
+    void setType(XFormType t);
+
+    void setVectorType();
+    void setPixmapType();
+    void setTextType();
+    void reset();
+
+signals:
+    void rotationChanged(int rotation);
+    void scaleChanged(int scale);
+    void shearChanged(int shear);
+
+protected:
+    void timerEvent(QTimerEvent *e) override;
+#if QT_CONFIG(wheelevent)
+    void wheelEvent(QWheelEvent *) override;
+#endif
+
+private:
+    QPolygonF m_controlPoints{{250, 250}, {350, 250}};
+    HoverPoints *m_hoverPoints;
+    qreal m_rotation = 0;
+    qreal m_scale = 1;
+    qreal m_shear = 0;
+    XFormType m_type = VectorType;
+    QPixmap m_pixmap;
+    QString m_text;
+    QBasicTimer timer;
+};
+
+class XFormWidget : public QWidget
+{
+    Q_OBJECT
+public:
+    XFormWidget(QWidget *parent);
+
+private:
+    XFormView *view;
+    QLineEdit *textEditor;
+};
+
+#endif // XFORM_H