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comparison Framework/Scene2DViewport/UndoStack.cpp @ 858:e3c56d4f863f

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GuiAdapter : mouse event routing in SDL + split the undo stack from the ViewportController for multi-canvas apps + adapted the samples to this change
author Benjamin Golinvaux <bgo@osimis.io>
date Mon, 24 Jun 2019 10:31:04 +0200
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children ac88989817e3
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855:41d22389a7d2 858:e3c56d4f863f
1 /**
2 * Stone of Orthanc
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
4 * Department, University Hospital of Liege, Belgium
5 * Copyright (C) 2017-2019 Osimis S.A., Belgium
6 *
7 * This program is free software: you can redistribute it and/or
8 * modify it under the terms of the GNU Affero General Public License
9 * as published by the Free Software Foundation, either version 3 of
10 * the License, or (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Affero General Public License for more details.
16 *
17 * You should have received a copy of the GNU Affero General Public License
18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
19 **/
20
21 #include "UndoStack.h"
22
23 #include "MeasureCommands.h"
24
25 #include "../StoneException.h"
26
27 namespace OrthancStone
28 {
29 UndoStack::UndoStack() : numAppliedCommands_(0)
30 {}
31
32 void UndoStack::PushCommand(boost::shared_ptr<TrackerCommand> command)
33 {
34 commandStack_.erase(
35 commandStack_.begin() + numAppliedCommands_,
36 commandStack_.end());
37
38 ORTHANC_ASSERT(std::find(commandStack_.begin(), commandStack_.end(), command)
39 == commandStack_.end(), "Duplicate command");
40 commandStack_.push_back(command);
41 numAppliedCommands_++;
42 }
43
44 void UndoStack::Undo()
45 {
46 ORTHANC_ASSERT(CanUndo(), "");
47 commandStack_[numAppliedCommands_ - 1]->Undo();
48 numAppliedCommands_--;
49 }
50
51 void UndoStack::Redo()
52 {
53 ORTHANC_ASSERT(CanRedo(), "");
54 commandStack_[numAppliedCommands_]->Redo();
55 numAppliedCommands_++;
56 }
57
58 bool UndoStack::CanUndo() const
59 {
60 return numAppliedCommands_ > 0;
61 }
62
63 bool UndoStack::CanRedo() const
64 {
65 return numAppliedCommands_ < commandStack_.size();
66 }
67
68 }