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2 | ** |
3 | ** Copyright (C) 2017 The Qt Company Ltd. |
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5 | ** |
6 | ** This file is part of the Qt Quick Templates 2 module of the Qt Toolkit. |
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35 | ****************************************************************************/ |
36 | |
37 | #ifndef QQUICKSCROLLBAR_P_P_H |
38 | #define QQUICKSCROLLBAR_P_P_H |
39 | |
40 | // |
41 | // W A R N I N G |
42 | // ------------- |
43 | // |
44 | // This file is not part of the Qt API. It exists purely as an |
45 | // implementation detail. This header file may change from version to |
46 | // version without notice, or even be removed. |
47 | // |
48 | // We mean it. |
49 | // |
50 | |
51 | #include <QtQuickTemplates2/private/qquickscrollbar_p.h> |
52 | #include <QtQuickTemplates2/private/qquickcontrol_p_p.h> |
53 | #include <QtQuick/private/qquickitemchangelistener_p.h> |
54 | |
55 | QT_BEGIN_NAMESPACE |
56 | |
57 | class QQuickFlickable; |
58 | |
59 | class QQuickScrollBarPrivate : public QQuickControlPrivate |
60 | { |
61 | Q_DECLARE_PUBLIC(QQuickScrollBar) |
62 | |
63 | public: |
64 | static QQuickScrollBarPrivate *get(QQuickScrollBar *bar) |
65 | { |
66 | return bar->d_func(); |
67 | } |
68 | |
69 | struct VisualArea |
70 | { |
71 | VisualArea(qreal pos, qreal sz) |
72 | : position(pos), size(sz) { } |
73 | qreal position = 0; |
74 | qreal size = 0; |
75 | }; |
76 | VisualArea visualArea() const; |
77 | |
78 | qreal logicalPosition(qreal position) const; |
79 | |
80 | qreal snapPosition(qreal position) const; |
81 | qreal positionAt(const QPointF &point) const; |
82 | void setInteractive(bool interactive); |
83 | void updateActive(); |
84 | void resizeContent() override; |
85 | |
86 | void handlePress(const QPointF &point) override; |
87 | void handleMove(const QPointF &point) override; |
88 | void handleRelease(const QPointF &point) override; |
89 | void handleUngrab() override; |
90 | |
91 | void visualAreaChange(const VisualArea &newVisualArea, const VisualArea &oldVisualArea); |
92 | |
93 | qreal size = 0; |
94 | qreal position = 0; |
95 | qreal stepSize = 0; |
96 | qreal offset = 0; |
97 | qreal minimumSize = 0; |
98 | bool active = false; |
99 | bool pressed = false; |
100 | bool moving = false; |
101 | bool interactive = true; |
102 | bool explicitInteractive = false; |
103 | Qt::Orientation orientation = Qt::Vertical; |
104 | QQuickScrollBar::SnapMode snapMode = QQuickScrollBar::NoSnap; |
105 | QQuickScrollBar::Policy policy = QQuickScrollBar::AsNeeded; |
106 | }; |
107 | |
108 | class QQuickScrollBarAttachedPrivate : public QObjectPrivate, public QQuickItemChangeListener |
109 | { |
110 | public: |
111 | static QQuickScrollBarAttachedPrivate *get(QQuickScrollBarAttached *attached) |
112 | { |
113 | return attached->d_func(); |
114 | } |
115 | |
116 | void setFlickable(QQuickFlickable *flickable); |
117 | |
118 | void initHorizontal(); |
119 | void initVertical(); |
120 | void cleanupHorizontal(); |
121 | void cleanupVertical(); |
122 | void activateHorizontal(); |
123 | void activateVertical(); |
124 | void scrollHorizontal(); |
125 | void scrollVertical(); |
126 | void mirrorVertical(); |
127 | |
128 | void layoutHorizontal(bool move = true); |
129 | void layoutVertical(bool move = true); |
130 | |
131 | void itemGeometryChanged(QQuickItem *item, QQuickGeometryChange change, const QRectF &diff) override; |
132 | void itemImplicitWidthChanged(QQuickItem *item) override; |
133 | void itemImplicitHeightChanged(QQuickItem *item) override; |
134 | void itemDestroyed(QQuickItem *item) override; |
135 | |
136 | QQuickFlickable *flickable = nullptr; |
137 | QQuickScrollBar *horizontal = nullptr; |
138 | QQuickScrollBar *vertical = nullptr; |
139 | }; |
140 | |
141 | QT_END_NAMESPACE |
142 | |
143 | #endif // QQUICKSCROLLBAR_P_P_H |
144 | |