gradients.h Example File
demos/gradients/gradients.h
 #ifndef GRADIENTS_H
 #define GRADIENTS_H
 #include "arthurwidgets.h"
 #include <QtGui>
 class HoverPoints;
 class ShadeWidget : public QWidget
 {
     Q_OBJECT
 public:
     enum ShadeType {
         RedShade,
         GreenShade,
         BlueShade,
         ARGBShade
     };
     ShadeWidget(ShadeType type, QWidget *parent);
     void setGradientStops(const QGradientStops &stops);
     void paintEvent(QPaintEvent *e);
     QSize sizeHint() const { return QSize(150, 40); }
     QPolygonF points() const;
     HoverPoints *hoverPoints() const { return m_hoverPoints; }
     uint colorAt(int x);
 signals:
     void colorsChanged();
 private:
     void generateShade();
     ShadeType m_shade_type;
     QImage m_shade;
     HoverPoints *m_hoverPoints;
     QLinearGradient m_alpha_gradient;
 };
 class GradientEditor : public QWidget
 {
     Q_OBJECT
 public:
     GradientEditor(QWidget *parent);
     void setGradientStops(const QGradientStops &stops);
 public slots:
     void pointsUpdated();
 signals:
     void gradientStopsChanged(const QGradientStops &stops);
 private:
     ShadeWidget *m_red_shade;
     ShadeWidget *m_green_shade;
     ShadeWidget *m_blue_shade;
     ShadeWidget *m_alpha_shade;
 };
 class GradientRenderer : public ArthurFrame
 {
     Q_OBJECT
 public:
     GradientRenderer(QWidget *parent);
     void paint(QPainter *p);
     QSize sizeHint() const { return QSize(400, 400); }
     HoverPoints *hoverPoints() const { return m_hoverPoints; }
     void mousePressEvent(QMouseEvent *e);
 public slots:
     void setGradientStops(const QGradientStops &stops);
     void setPadSpread() { m_spread = QGradient::PadSpread; update(); }
     void setRepeatSpread() { m_spread = QGradient::RepeatSpread; update(); }
     void setReflectSpread() { m_spread = QGradient::ReflectSpread; update(); }
     void setLinearGradient() { m_gradientType = Qt::LinearGradientPattern; update(); }
     void setRadialGradient() { m_gradientType = Qt::RadialGradientPattern; update(); }
     void setConicalGradient() { m_gradientType = Qt::ConicalGradientPattern; update(); }
 private:
     QGradientStops m_stops;
     HoverPoints *m_hoverPoints;
     QGradient::Spread m_spread;
     Qt::BrushStyle m_gradientType;
 };
 class GradientWidget : public QWidget
 {
     Q_OBJECT
 public:
     GradientWidget(QWidget *parent);
 public slots:
     void setDefault1() { setDefault(1); }
     void setDefault2() { setDefault(2); }
     void setDefault3() { setDefault(3); }
     void setDefault4() { setDefault(4); }
 private:
     void setDefault(int i);
     GradientRenderer *m_renderer;
     GradientEditor *m_editor;
     QRadioButton *m_linearButton;
     QRadioButton *m_radialButton;
     QRadioButton *m_conicalButton;
     QRadioButton *m_padSpreadButton;
     QRadioButton *m_reflectSpreadButton;
     QRadioButton *m_repeatSpreadButton;
 };
 #endif 
| Copyright © 2010 Nokia Corporation and/or its subsidiary(-ies) | Trademarks | Qt 4.6.3 |