openshot-audio  0.1.2
juce_UndoableAction.h
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1 /*
2  ==============================================================================
3 
4  This file is part of the JUCE library.
5  Copyright (c) 2015 - ROLI Ltd.
6 
7  Permission is granted to use this software under the terms of either:
8  a) the GPL v2 (or any later version)
9  b) the Affero GPL v3
10 
11  Details of these licenses can be found at: www.gnu.org/licenses
12 
13  JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
14  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
15  A PARTICULAR PURPOSE. See the GNU General Public License for more details.
16 
17  ------------------------------------------------------------------------------
18 
19  To release a closed-source product which uses JUCE, commercial licenses are
20  available: visit www.juce.com for more information.
21 
22  ==============================================================================
23 */
24 
25 #ifndef JUCE_UNDOABLEACTION_H_INCLUDED
26 #define JUCE_UNDOABLEACTION_H_INCLUDED
27 
28 
29 //==============================================================================
37 {
38 protected:
41 
42 public:
44  virtual ~UndoableAction() {}
45 
46  //==============================================================================
58  virtual bool perform() = 0;
59 
71  virtual bool undo() = 0;
72 
73  //==============================================================================
86  virtual int getSizeInUnits() { return 10; }
87 
95  virtual UndoableAction* createCoalescedAction (UndoableAction* nextAction) { (void) nextAction; return nullptr; }
96 };
97 
98 
99 #endif // JUCE_UNDOABLEACTION_H_INCLUDED
Definition: juce_UndoableAction.h:36
#define noexcept
Definition: juce_CompilerSupport.h:141
UndoableAction() noexcept
Definition: juce_UndoableAction.h:40
virtual UndoableAction * createCoalescedAction(UndoableAction *nextAction)
Definition: juce_UndoableAction.h:95
#define JUCE_API
Definition: juce_StandardHeader.h:139
Definition: juce_ApplicationCommandID.h:83
void
Definition: juce_PNGLoader.cpp:1173
virtual int getSizeInUnits()
Definition: juce_UndoableAction.h:86
virtual ~UndoableAction()
Definition: juce_UndoableAction.h:44