pathdeform.h Example File

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  #ifndef PATHDEFORM_H
  #define PATHDEFORM_H

  #include "arthurwidgets.h"

  #include <QBasicTimer>
  #include <QDateTime>
  #include <QPainterPath>

  class PathDeformRenderer : public ArthurFrame
  {
      Q_OBJECT
      Q_PROPERTY(bool animated READ animated WRITE setAnimated)
      Q_PROPERTY(int radius READ radius WRITE setRadius)
      Q_PROPERTY(int fontSize READ fontSize WRITE setFontSize)
      Q_PROPERTY(int intensity READ intensity WRITE setIntensity)
      Q_PROPERTY(QString text READ text WRITE setText)

  public:
      explicit PathDeformRenderer(QWidget *widget, bool smallScreen = false);

      void paint(QPainter *painter) Q_DECL_OVERRIDE;

      void mousePressEvent(QMouseEvent *e) Q_DECL_OVERRIDE;
      void mouseReleaseEvent(QMouseEvent *e) Q_DECL_OVERRIDE;
      void mouseMoveEvent(QMouseEvent *e) Q_DECL_OVERRIDE;
      void timerEvent(QTimerEvent *e) Q_DECL_OVERRIDE;

      QSize sizeHint() const Q_DECL_OVERRIDE { return QSize(600, 500); }

      bool animated() const { return m_animated; }
      int radius() const { return int(m_radius); }
      int fontSize() const { return m_fontSize; }
      int intensity() const { return int(m_intensity); }
      QString text() const { return m_text; }

  public slots:
      void setRadius(int radius);
      void setFontSize(int fontSize) { m_fontSize = fontSize; setText(m_text); }
      void setText(const QString &text);
      void setIntensity(int intensity);

      void setAnimated(bool animated);

  signals:
      void clicked();
  //     void frameRate(double fps);

  private:
      void generateLensPixmap();
      QPainterPath lensDeform(const QPainterPath &source, const QPointF &offset);

      QBasicTimer m_repaintTimer;
  //     QBasicTimer m_fpsTimer;
  //     int m_fpsCounter;
      QTime m_repaintTracker;

      QVector<QPainterPath> m_paths;
      QVector<QPointF> m_advances;
      QRectF m_pathBounds;
      QString m_text;

      QPixmap m_lens_pixmap;
      QImage m_lens_image;

      int m_fontSize;
      bool m_animated;

      qreal m_intensity;
      qreal m_radius;
      QPointF m_pos;
      QPointF m_offset;
      QPointF m_direction;
      QPointF m_mousePress;
      bool m_mouseDrag;
      bool m_smallScreen;
  };

  class PathDeformControls : public QWidget
  {
      Q_OBJECT
  public:
      PathDeformControls(QWidget *parent, PathDeformRenderer* renderer, bool smallScreen);
  signals:
      void okPressed();
      void quitPressed();
  private:
      PathDeformRenderer* m_renderer;
      void layoutForDesktop();
      void layoutForSmallScreen();
  };

  class PathDeformWidget : public QWidget
  {
      Q_OBJECT
  public:
      PathDeformWidget(QWidget *parent, bool smallScreen);
      void setStyle (QStyle * style );

  private:
      PathDeformRenderer *m_renderer;
      PathDeformControls *m_controls;

  private slots:
      void showControls();
      void hideControls();
  };

  #endif // PATHDEFORM_H