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widget_pool.hh
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1 //------------------------------------------------------------------------------
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3 //
4 // Copyright (C) 2008-2020 by the OpenStructure authors
5 //
6 // This library is free software; you can redistribute it and/or modify it under
7 // the terms of the GNU Lesser General Public License as published by the Free
8 // Software Foundation; either version 3.0 of the License, or (at your option)
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10 // This library is distributed in the hope that it will be useful, but WITHOUT
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12 // FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
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18 //------------------------------------------------------------------------------
19 #ifndef OST_GUI_WIDGET_POOL_HH
20 #define OST_GUI_WIDGET_POOL_HH
21 
22 #include <ost/gui/widget.hh>
23 #include <QSettings>
24 /*
25  Author: Marco Biasini, Stefan Scheuber
26  */
27 namespace ost { namespace gui {
28 
30 {
32  name(""), available(-1)
33  { }
34 
35  PooledWidget(const QString& n, int lim=-1):
36  name(n), available(lim), limit(lim)
37  { }
38  QString name;
39  int available;
40  int limit;
41 };
42 
45 class DLLEXPORT_OST_GUI WidgetPool : public QObject {
46  Q_OBJECT
47 public:
48  WidgetPool(QObject* parent=NULL);
49 
55  void Add(const QString& name, int limit=-1);
56 
60  bool IsAvailable(const QString& name);
61 
66  Widget* Create(const QString& name);
67 
72  bool Take(const QString& name);
73 
78  bool Give(const QString& name);
79 
82  QList<QString> GetAvailableWidgets();
83 
84 private:
85  QMap<QString, PooledWidget> pool_;
86 };
87 
88 }}
89 #endif /* OST_GUI_WIDGET_POOL_HH */
PooledWidget(const QString &n, int lim=-1)
Definition: widget_pool.hh:35
#define DLLEXPORT_OST_GUI
Base class for widgets.
Definition: widget.hh:40
This Widget pool manages instances of widgets Widgets can be added to this pool by simply passing the...
Definition: widget_pool.hh:45