first re-commit.

swflipdigit.h

@@ -0,0 +1,98 @@
+/***************************************************************************
+
+    source::worx raDIYo
+    Copyright © 2020-2022 c.holzheuer
+    chris@sourceworx.org
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+***************************************************************************/
+
+/**
+ * contains copy-written material from qt example code:
+ * @see shaped clock example
+ * @see embedded/flipdigits example
+ *
+ * **/
+
+
+#ifndef SWFLIPDIGIT_H
+#define SWFLIPDIGIT_H
+
+#include <QWidget>
+#include <QTimeLine>
+
+#include <swdialwidget.h>
+#include <swrangevalue.h>
+
+
+/**
+ * @brief Simuliert die 'Klappzahl'-Darstellung einer Ziffer.
+ */
+
+class SWFlipDigit : public QWidget, public SWDialWidget, public SWRangeValue
+{
+
+    Q_OBJECT
+
+public:
+
+    enum FlipMode
+    {
+        Slide,
+        Flip,
+        Rotate
+    };
+
+    explicit SWFlipDigit(QWidget *parent = nullptr);
+    virtual ~SWFlipDigit();
+
+    void setTransition( FlipMode tr );
+    FlipMode transition() const;
+
+    void onDialDeltaChanged( int delta ) override;
+
+public slots:
+
+    virtual void setValue( int n ) override;
+    void flipTo( int n );
+
+protected:
+
+    const char*  SWDEFAULTFONT = "Grado Gradoo Nf";
+    const double SWSCALEFACTOR = 2.7;
+    const double SWFONTSCALE   = 0.85;
+
+    void drawFrame( QPainter* p, const QRect& rect );
+    QPixmap drawDigits(int n, const QRect &rect);
+    void preparePixmap();
+
+    void resizeEvent( QResizeEvent* event ) override;
+    virtual void paintEvent( QPaintEvent* event ) override;
+
+    void paintStatic();
+    void paintSlide();
+    void paintFlip();
+    void paintRotate();
+
+    //const int SWPADWIDTH = 0;//1;//15;
+
+    double    _scaleFactor = SWSCALEFACTOR;
+    double    _fontScale   = SWFONTSCALE;
+
+    QString   _fontFamily;
+    FlipMode  _transition;
+    QPixmap   _pixmap;
+    QPixmap   _lastPixmap;
+    QTimeLine _animator;
+
+
+};
+
+
+
+
+#endif // SWFLIPDIGIT_H