1 | // Copyright (C) 2016 The Qt Company Ltd. |
2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
3 | |
4 | #ifndef QSPLITTER_P_H |
5 | #define QSPLITTER_P_H |
6 | |
7 | // |
8 | // W A R N I N G |
9 | // ------------- |
10 | // |
11 | // This file is not part of the Qt API. It exists purely as an |
12 | // implementation detail. This header file may change from version to |
13 | // version without notice, or even be removed. |
14 | // |
15 | // We mean it. |
16 | // |
17 | |
18 | #include <QtWidgets/private/qtwidgetsglobal_p.h> |
19 | #include "private/qframe_p.h" |
20 | |
21 | QT_REQUIRE_CONFIG(splitter); |
22 | |
23 | QT_BEGIN_NAMESPACE |
24 | |
25 | static const uint Default = 2; |
26 | |
27 | class QSplitterLayoutStruct |
28 | { |
29 | public: |
30 | QRect rect; |
31 | int sizer; |
32 | uint collapsed : 1; |
33 | uint collapsible : 2; |
34 | QWidget *widget; |
35 | QSplitterHandle *handle; |
36 | |
37 | QSplitterLayoutStruct() : sizer(-1), collapsed(false), collapsible(Default), widget(nullptr), handle(nullptr) {} |
38 | ~QSplitterLayoutStruct() { delete handle; } |
39 | int getWidgetSize(Qt::Orientation orient); |
40 | int getHandleSize(Qt::Orientation orient); |
41 | int pick(const QSize &size, Qt::Orientation orient) |
42 | { return (orient == Qt::Horizontal) ? size.width() : size.height(); } |
43 | }; |
44 | |
45 | class QSplitterPrivate : public QFramePrivate |
46 | { |
47 | Q_DECLARE_PUBLIC(QSplitter) |
48 | public: |
49 | QSplitterPrivate() : |
50 | #if QT_CONFIG(rubberband) |
51 | rubberBand(nullptr), |
52 | #endif |
53 | opaque(true), firstShow(true), |
54 | childrenCollapsible(true), compatMode(false), handleWidth(-1), blockChildAdd(false), opaqueResizeSet(false) {} |
55 | ~QSplitterPrivate(); |
56 | |
57 | #if QT_CONFIG(rubberband) |
58 | QPointer<QRubberBand> rubberBand; |
59 | #endif |
60 | mutable QList<QSplitterLayoutStruct *> list; |
61 | Qt::Orientation orient; |
62 | bool opaque : 8; |
63 | bool firstShow : 8; |
64 | bool childrenCollapsible : 8; |
65 | bool compatMode : 8; |
66 | int handleWidth; |
67 | bool blockChildAdd; |
68 | bool opaqueResizeSet; |
69 | |
70 | inline int pick(const QPoint &pos) const |
71 | { return orient == Qt::Horizontal ? pos.x() : pos.y(); } |
72 | inline int pick(const QSize &s) const |
73 | { return orient == Qt::Horizontal ? s.width() : s.height(); } |
74 | |
75 | inline int trans(const QPoint &pos) const |
76 | { return orient == Qt::Vertical ? pos.x() : pos.y(); } |
77 | inline int trans(const QSize &s) const |
78 | { return orient == Qt::Vertical ? s.width() : s.height(); } |
79 | |
80 | void init(); |
81 | void recalc(bool update = false); |
82 | void doResize(); |
83 | void storeSizes(); |
84 | void getRange(int index, int *, int *, int *, int *) const; |
85 | void addContribution(int, int *, int *, bool) const; |
86 | int adjustPos(int, int, int *, int *, int *, int *) const; |
87 | bool collapsible(QSplitterLayoutStruct *) const; |
88 | bool collapsible(int index) const |
89 | { return (index < 0 || index >= list.size()) ? true : collapsible(list.at(i: index)); } |
90 | QSplitterLayoutStruct *findWidget(QWidget *) const; |
91 | void insertWidget_helper(int index, QWidget *widget, bool show); |
92 | QSplitterLayoutStruct *insertWidget(int index, QWidget *); |
93 | void doMove(bool backwards, int pos, int index, int delta, |
94 | bool mayCollapse, int *positions, int *widths); |
95 | void setGeo(QSplitterLayoutStruct *s, int pos, int size, bool allowCollapse); |
96 | int findWidgetJustBeforeOrJustAfter(int index, int delta, int &collapsibleSize) const; |
97 | void updateHandles(); |
98 | void setSizes_helper(const QList<int> &sizes, bool clampNegativeSize = false); |
99 | bool shouldShowWidget(const QWidget *w) const; |
100 | |
101 | }; |
102 | |
103 | class QSplitterHandlePrivate : public QWidgetPrivate |
104 | { |
105 | Q_DECLARE_PUBLIC(QSplitterHandle) |
106 | public: |
107 | QSplitterHandlePrivate() : s(nullptr), orient(Qt::Horizontal), mouseOffset(0), opaq(false), hover(false), pressed(false) {} |
108 | |
109 | inline int pick(const QPoint &pos) const |
110 | { return orient == Qt::Horizontal ? pos.x() : pos.y(); } |
111 | |
112 | QSplitter *s; |
113 | Qt::Orientation orient; |
114 | int mouseOffset; |
115 | bool opaq : 1; |
116 | bool hover : 1; |
117 | bool pressed : 1; |
118 | }; |
119 | |
120 | QT_END_NAMESPACE |
121 | |
122 | #endif |
123 | |