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    16 ** GNU Lesser General Public License Usage

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    40 ****************************************************************************/

    41 

    42 #ifndef QABSTRACTSLIDER_H

    43 #define QABSTRACTSLIDER_H

    44 

    45 #include <QtGui/qwidget.h>

    46 

    47 QT_BEGIN_HEADER

    48 

    49 QT_BEGIN_NAMESPACE

    50 

    51 QT_MODULE(Gui)

    52 

    53 class QAbstractSliderPrivate;

    54 

    55 class Q_GUI_EXPORT QAbstractSlider : public QWidget

    56 {

    57     Q_OBJECT

    58 

    59     Q_PROPERTY(int minimum READ minimum WRITE setMinimum)

    60     Q_PROPERTY(int maximum READ maximum WRITE setMaximum)

    61     Q_PROPERTY(int singleStep READ singleStep WRITE setSingleStep)

    62     Q_PROPERTY(int pageStep READ pageStep WRITE setPageStep)

    63     Q_PROPERTY(int value READ value WRITE setValue NOTIFY valueChanged USER true)

    64     Q_PROPERTY(int sliderPosition READ sliderPosition WRITE setSliderPosition NOTIFY sliderMoved)

    65     Q_PROPERTY(bool tracking READ hasTracking WRITE setTracking)

    66     Q_PROPERTY(Qt::Orientation orientation READ orientation WRITE setOrientation)

    67     Q_PROPERTY(bool invertedAppearance READ invertedAppearance WRITE setInvertedAppearance)

    68     Q_PROPERTY(bool invertedControls READ invertedControls WRITE setInvertedControls)

    69     Q_PROPERTY(bool sliderDown READ isSliderDown WRITE setSliderDown DESIGNABLE false)

    70 

    71 public:

    72     explicit QAbstractSlider(QWidget *parent=0);

    73     ~QAbstractSlider();

    74 

    75     Qt::Orientation orientation() const;

    76 

    77     void setMinimum(int);

    78     int minimum() const;

    79 

    80     void setMaximum(int);

    81     int maximum() const;

    82 

    83     void setRange(int min, int max);

    84 

    85     void setSingleStep(int);

    86     int singleStep() const;

    87 

    88     void setPageStep(int);

    89     int pageStep() const;

    90 

    91     void setTracking(bool enable);

    92     bool hasTracking() const;

    93 

    94     void setSliderDown(bool);

    95     bool isSliderDown() const;

    96 

    97     void setSliderPosition(int);

    98     int sliderPosition() const;

    99 

   100     void setInvertedAppearance(bool);

   101     bool invertedAppearance() const;

   102 

   103     void setInvertedControls(bool);

   104     bool invertedControls() const;

   105 

   106     enum SliderAction {

   107         SliderNoAction,

   108         SliderSingleStepAdd,

   109         SliderSingleStepSub,

   110         SliderPageStepAdd,

   111         SliderPageStepSub,

   112         SliderToMinimum,

   113         SliderToMaximum,

   114         SliderMove

   115     };

   116 

   117     int value() const;

   118 

   119     void triggerAction(SliderAction action);

   120 

   121 public Q_SLOTS:

   122     void setValue(int);

   123     void setOrientation(Qt::Orientation);

   124 

   125 Q_SIGNALS:

   126     void valueChanged(int value);

   127 

   128     void sliderPressed();

   129     void sliderMoved(int position);

   130     void sliderReleased();

   131 

   132     void rangeChanged(int min, int max);

   133 

   134     void actionTriggered(int action);

   135 

   136 protected:

   137     bool event(QEvent *e);

   138 

   139     void setRepeatAction(SliderAction action, int thresholdTime = 500, int repeatTime = 50);

   140     SliderAction repeatAction() const;

   141 

   142     enum SliderChange {

   143         SliderRangeChange,

   144         SliderOrientationChange,

   145         SliderStepsChange,

   146         SliderValueChange

   147     };

   148     virtual void sliderChange(SliderChange change);

   149 

   150     void keyPressEvent(QKeyEvent *ev);

   151     void timerEvent(QTimerEvent *);

   152 #ifndef QT_NO_WHEELEVENT

   153     void wheelEvent(QWheelEvent *e);

   154 #endif

   155     void changeEvent(QEvent *e);

   156 

   157 #ifdef QT3_SUPPORT

   158 public:

   159     inline QT3_SUPPORT int minValue() const { return minimum(); }

   160     inline QT3_SUPPORT int maxValue() const { return maximum(); }

   161     inline QT3_SUPPORT int lineStep() const { return singleStep(); }

   162     inline QT3_SUPPORT void setMinValue(int v) { setMinimum(v); }

   163     inline QT3_SUPPORT void setMaxValue(int v) { setMaximum(v); }

   164     inline QT3_SUPPORT void setLineStep(int v) { setSingleStep(v); }

   165     inline QT3_SUPPORT void setSteps(int single, int page) { setSingleStep(single); setPageStep(page); }

   166     inline QT3_SUPPORT void addPage() { triggerAction(SliderPageStepAdd); }

   167     inline QT3_SUPPORT void subtractPage() { triggerAction(SliderPageStepSub); }

   168     inline QT3_SUPPORT void addLine() { triggerAction(SliderSingleStepAdd); }

   169     inline QT3_SUPPORT void subtractLine() { triggerAction(SliderSingleStepSub); }

   170 #endif

   171 

   172 protected:

   173     QAbstractSlider(QAbstractSliderPrivate &dd, QWidget *parent=0);

   174 

   175 private:

   176     Q_DISABLE_COPY(QAbstractSlider)

   177     Q_DECLARE_PRIVATE(QAbstractSlider)

   178 };

   179 

   180 QT_END_NAMESPACE

   181 

   182 QT_END_HEADER

   183 

   184 #endif // QABSTRACTSLIDER_H