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39 | |
40 | #ifndef QSPLITTER_P_H |
41 | #define QSPLITTER_P_H |
42 | |
43 | // |
44 | // W A R N I N G |
45 | // ------------- |
46 | // |
47 | // This file is not part of the Qt API. It exists purely as an |
48 | // implementation detail. This header file may change from version to |
49 | // version without notice, or even be removed. |
50 | // |
51 | // We mean it. |
52 | // |
53 | |
54 | #include <QtWidgets/private/qtwidgetsglobal_p.h> |
55 | #include "private/qframe_p.h" |
56 | |
57 | QT_REQUIRE_CONFIG(splitter); |
58 | |
59 | QT_BEGIN_NAMESPACE |
60 | |
61 | static const uint Default = 2; |
62 | |
63 | class QSplitterLayoutStruct |
64 | { |
65 | public: |
66 | QRect rect; |
67 | int sizer; |
68 | uint collapsed : 1; |
69 | uint collapsible : 2; |
70 | QWidget *widget; |
71 | QSplitterHandle *handle; |
72 | |
73 | QSplitterLayoutStruct() : sizer(-1), collapsed(false), collapsible(Default), widget(nullptr), handle(nullptr) {} |
74 | ~QSplitterLayoutStruct() { delete handle; } |
75 | int getWidgetSize(Qt::Orientation orient); |
76 | int getHandleSize(Qt::Orientation orient); |
77 | int pick(const QSize &size, Qt::Orientation orient) |
78 | { return (orient == Qt::Horizontal) ? size.width() : size.height(); } |
79 | }; |
80 | |
81 | class QSplitterPrivate : public QFramePrivate |
82 | { |
83 | Q_DECLARE_PUBLIC(QSplitter) |
84 | public: |
85 | QSplitterPrivate() : |
86 | #if QT_CONFIG(rubberband) |
87 | rubberBand(nullptr), |
88 | #endif |
89 | opaque(true), firstShow(true), |
90 | childrenCollapsible(true), compatMode(false), handleWidth(-1), blockChildAdd(false), opaqueResizeSet(false) {} |
91 | ~QSplitterPrivate(); |
92 | |
93 | #if QT_CONFIG(rubberband) |
94 | QPointer<QRubberBand> rubberBand; |
95 | #endif |
96 | mutable QList<QSplitterLayoutStruct *> list; |
97 | Qt::Orientation orient; |
98 | bool opaque : 8; |
99 | bool firstShow : 8; |
100 | bool childrenCollapsible : 8; |
101 | bool compatMode : 8; |
102 | int handleWidth; |
103 | bool blockChildAdd; |
104 | bool opaqueResizeSet; |
105 | |
106 | inline int pick(const QPoint &pos) const |
107 | { return orient == Qt::Horizontal ? pos.x() : pos.y(); } |
108 | inline int pick(const QSize &s) const |
109 | { return orient == Qt::Horizontal ? s.width() : s.height(); } |
110 | |
111 | inline int trans(const QPoint &pos) const |
112 | { return orient == Qt::Vertical ? pos.x() : pos.y(); } |
113 | inline int trans(const QSize &s) const |
114 | { return orient == Qt::Vertical ? s.width() : s.height(); } |
115 | |
116 | void init(); |
117 | void recalc(bool update = false); |
118 | void doResize(); |
119 | void storeSizes(); |
120 | void getRange(int index, int *, int *, int *, int *) const; |
121 | void addContribution(int, int *, int *, bool) const; |
122 | int adjustPos(int, int, int *, int *, int *, int *) const; |
123 | bool collapsible(QSplitterLayoutStruct *) const; |
124 | bool collapsible(int index) const |
125 | { return (index < 0 || index >= list.size()) ? true : collapsible(list.at(i: index)); } |
126 | QSplitterLayoutStruct *findWidget(QWidget *) const; |
127 | void insertWidget_helper(int index, QWidget *widget, bool show); |
128 | QSplitterLayoutStruct *insertWidget(int index, QWidget *); |
129 | void doMove(bool backwards, int pos, int index, int delta, |
130 | bool mayCollapse, int *positions, int *widths); |
131 | void setGeo(QSplitterLayoutStruct *s, int pos, int size, bool allowCollapse); |
132 | int findWidgetJustBeforeOrJustAfter(int index, int delta, int &collapsibleSize) const; |
133 | void updateHandles(); |
134 | void setSizes_helper(const QList<int> &sizes, bool clampNegativeSize = false); |
135 | bool shouldShowWidget(const QWidget *w) const; |
136 | |
137 | }; |
138 | |
139 | class QSplitterHandlePrivate : public QWidgetPrivate |
140 | { |
141 | Q_DECLARE_PUBLIC(QSplitterHandle) |
142 | public: |
143 | QSplitterHandlePrivate() : s(nullptr), orient(Qt::Horizontal), mouseOffset(0), opaq(false), hover(false), pressed(false) {} |
144 | |
145 | inline int pick(const QPoint &pos) const |
146 | { return orient == Qt::Horizontal ? pos.x() : pos.y(); } |
147 | |
148 | QSplitter *s; |
149 | Qt::Orientation orient; |
150 | int mouseOffset; |
151 | bool opaq : 1; |
152 | bool hover : 1; |
153 | bool pressed : 1; |
154 | }; |
155 | |
156 | QT_END_NAMESPACE |
157 | |
158 | #endif |
159 | |