pathstroke.h Example File

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#ifndef PATHSTROKE_H
#define PATHSTROKE_H
#include "arthurwidgets.h"
#include <QtGui>
class PathStrokeRenderer : public ArthurFrame
{
    Q_OBJECT
    Q_PROPERTY(bool animation READ animation WRITE setAnimation)
    Q_PROPERTY(qreal penWidth READ realPenWidth WRITE setRealPenWidth)
public:
    enum PathMode { CurveMode, LineMode };
    PathStrokeRenderer(QWidget *parent, bool smallScreen = false);
    void paint(QPainter *);
    void mousePressEvent(QMouseEvent *e);
    void mouseMoveEvent(QMouseEvent *e);
    void mouseReleaseEvent(QMouseEvent *e);
    void timerEvent(QTimerEvent *e);
    bool event(QEvent *e);
    QSize sizeHint() const { return QSize(500, 500); }
    bool animation() const { return m_timer.isActive(); }
    qreal realPenWidth() const { return m_penWidth; }
    void setRealPenWidth(qreal penWidth) { m_penWidth = penWidth; update(); }
signals:
    void clicked();
public slots:
    void setPenWidth(int penWidth) { m_penWidth = penWidth / 10.0; update(); }
    void setAnimation(bool animation);
    void setFlatCap() { m_capStyle = Qt::FlatCap; update(); }
    void setSquareCap() { m_capStyle = Qt::SquareCap; update(); }
    void setRoundCap() { m_capStyle = Qt::RoundCap; update(); }
    void setBevelJoin() { m_joinStyle = Qt::BevelJoin; update(); }
    void setMiterJoin() { m_joinStyle = Qt::MiterJoin; update(); }
    void setRoundJoin() { m_joinStyle = Qt::RoundJoin; update(); }
    void setCurveMode() { m_pathMode = CurveMode; update(); }
    void setLineMode() { m_pathMode = LineMode; update(); }
    void setSolidLine() { m_penStyle = Qt::SolidLine; update(); }
    void setDashLine() { m_penStyle = Qt::DashLine; update(); }
    void setDotLine() { m_penStyle = Qt::DotLine; update(); }
    void setDashDotLine() { m_penStyle = Qt::DashDotLine; update(); }
    void setDashDotDotLine() { m_penStyle = Qt::DashDotDotLine; update(); }
    void setCustomDashLine() { m_penStyle = Qt::NoPen; update(); }
private:
    void initializePoints();
    void updatePoints();
    QBasicTimer m_timer;
    PathMode m_pathMode;
    bool m_wasAnimated;
    qreal m_penWidth;
    int m_pointCount;
    int m_pointSize;
    int m_activePoint;
    QVector<QPointF> m_points;
    QVector<QPointF> m_vectors;
    Qt::PenJoinStyle m_joinStyle;
    Qt::PenCapStyle m_capStyle;
    Qt::PenStyle m_penStyle;
    bool m_smallScreen;
    QPoint m_mousePress;
    bool m_mouseDrag;
    QHash<int, int> m_fingerPointMapping;
};
class PathStrokeControls : public QWidget
{
    Q_OBJECT
public:
    PathStrokeControls(QWidget* parent, PathStrokeRenderer* renderer, bool smallScreen);
signals:
    void okPressed();
    void quitPressed();
private:
    PathStrokeRenderer* m_renderer;
    QGroupBox *m_capGroup;
    QGroupBox *m_joinGroup;
    QGroupBox *m_styleGroup;
    QGroupBox *m_pathModeGroup;
    void createCommonControls(QWidget* parent);
    void layoutForDesktop();
    void layoutForSmallScreens();
private slots:
    void emitQuitSignal();
    void emitOkSignal();
};
class PathStrokeWidget : public QWidget
{
    Q_OBJECT
public:
    PathStrokeWidget(bool smallScreen);
    void setStyle ( QStyle * style );
private:
    PathStrokeRenderer *m_renderer;
    PathStrokeControls *m_controls;
private slots:
    void showControls();
    void hideControls();
};
#endif // PATHSTROKE_H