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| ** This file is part of the QtWidgets module of the Qt Toolkit. |
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| |
| #ifndef QABSTRACTSLIDER_P_H |
| #define QABSTRACTSLIDER_P_H |
| |
| // |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is not part of the Qt API. It exists purely as an |
| // implementation detail. This header file may change from version to |
| // version without notice, or even be removed. |
| // |
| // We mean it. |
| // |
| |
| #include "QtCore/qbasictimer.h" |
| #include "QtCore/qelapsedtimer.h" |
| #include "private/qwidget_p.h" |
| #include "qstyle.h" |
| |
| QT_BEGIN_NAMESPACE |
| |
| class QAbstractSliderPrivate : public QWidgetPrivate |
| { |
| Q_DECLARE_PUBLIC(QAbstractSlider) |
| public: |
| QAbstractSliderPrivate(); |
| ~QAbstractSliderPrivate(); |
| |
| void setSteps(int single, int page); |
| |
| int minimum, maximum, pageStep, value, position, pressValue; |
| |
| /** |
| * Call effectiveSingleStep() when changing the slider value. |
| */ |
| int singleStep; |
| |
| float offset_accumulated; |
| uint tracking : 1; |
| uint blocktracking :1; |
| uint pressed : 1; |
| uint invertedAppearance : 1; |
| uint invertedControls : 1; |
| Qt::Orientation orientation; |
| |
| QBasicTimer repeatActionTimer; |
| int repeatActionTime; |
| QAbstractSlider::SliderAction repeatAction; |
| |
| #ifdef QT_KEYPAD_NAVIGATION |
| int origValue; |
| |
| /** |
| */ |
| bool isAutoRepeating; |
| |
| /** |
| * When we're auto repeating, we multiply singleStep with this value to |
| * get our effective step. |
| */ |
| qreal repeatMultiplier; |
| |
| /** |
| * The time of when the first auto repeating key press event occurs. |
| */ |
| QElapsedTimer firstRepeat; |
| |
| #endif |
| |
| inline int effectiveSingleStep() const |
| { |
| return singleStep |
| #ifdef QT_KEYPAD_NAVIGATION |
| * repeatMultiplier |
| #endif |
| ; |
| } |
| |
| virtual int bound(int val) const { return qMax(minimum, qMin(maximum, val)); } |
| inline int overflowSafeAdd(int add) const |
| { |
| int newValue = value + add; |
| if (add > 0 && newValue < value) |
| newValue = maximum; |
| else if (add < 0 && newValue > value) |
| newValue = minimum; |
| return newValue; |
| } |
| inline void setAdjustedSliderPosition(int position) |
| { |
| Q_Q(QAbstractSlider); |
| if (q->style()->styleHint(QStyle::SH_Slider_StopMouseOverSlider, 0, q)) { |
| if ((position > pressValue - 2 * pageStep) && (position < pressValue + 2 * pageStep)) { |
| repeatAction = QAbstractSlider::SliderNoAction; |
| q->setSliderPosition(pressValue); |
| return; |
| } |
| } |
| q->triggerAction(repeatAction); |
| } |
| bool scrollByDelta(Qt::Orientation orientation, Qt::KeyboardModifiers modifiers, int delta); |
| }; |
| |
| QT_END_NAMESPACE |
| |
| #endif // QABSTRACTSLIDER_P_H |