QGIS API Documentation 3.29.0-Master (19d7edcfed)
qgschunklist_p.h
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1/***************************************************************************
2 qgschunklist_p.h
3 --------------------------------------
4 Date : July 2017
5 Copyright : (C) 2017 by Martin Dobias
6 Email : wonder dot sk at gmail dot com
7 ***************************************************************************
8 * *
9 * This program is free software; you can redistribute it and/or modify *
10 * it under the terms of the GNU General Public License as published by *
11 * the Free Software Foundation; either version 2 of the License, or *
12 * (at your option) any later version. *
13 * *
14 ***************************************************************************/
15
16#ifndef QGSCHUNKLIST_P_H
17#define QGSCHUNKLIST_P_H
18
20
21//
22// W A R N I N G
23// -------------
24//
25// This file is not part of the QGIS API. It exists purely as an
26// implementation detail. This header file may change from version to
27// version without notice, or even be removed.
28//
29
30#define SIP_NO_FILE
31
32class QgsChunkNode;
33
42struct QgsChunkListEntry
43{
45 QgsChunkListEntry( QgsChunkNode *node )
46 : chunk( node )
47 {
48 }
49
50 QgsChunkListEntry *prev = nullptr;
51 QgsChunkListEntry *next = nullptr;
52 QgsChunkNode *chunk;
53};
54
55
70class QgsChunkList
71{
72 public:
74 QgsChunkList() = default;
75
77 int trueCount() const;
79 int count() const { return mCount; }
80
82 QgsChunkListEntry *first() const { return mHead; }
84 QgsChunkListEntry *last() const { return mTail; }
86 bool isEmpty() const;
87
92 void insertEntry( QgsChunkListEntry *entry, QgsChunkListEntry *next );
93
95 void takeEntry( QgsChunkListEntry *entry );
97 QgsChunkListEntry *takeFirst();
99 QgsChunkListEntry *takeLast();
100
102 void insertFirst( QgsChunkListEntry *entry );
104 void insertLast( QgsChunkListEntry *entry );
105
106 private:
107 QgsChunkListEntry *mHead = nullptr;
108 QgsChunkListEntry *mTail = nullptr;
109 int mCount = 0;
110};
111
113
114#endif // QGSCHUNKLIST_P_H