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117 lines
4.8 KiB
C++
117 lines
4.8 KiB
C++
//##################################################################################################
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//
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// Custom Visualization Core library
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// Copyright (C) 2011-2013 Ceetron AS
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//
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// This library may be used under the terms of either the GNU General Public License or
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// the GNU Lesser General Public License as follows:
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//
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// GNU General Public License Usage
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// This library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE.
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//
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// See the GNU General Public License at <<http://www.gnu.org/licenses/gpl.html>>
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// for more details.
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//
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// GNU Lesser General Public License Usage
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// This library is free software; you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation; either version 2.1 of the License, or
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// (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE.
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//
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// See the GNU Lesser General Public License at <<http://www.gnu.org/licenses/lgpl-2.1.html>>
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// for more details.
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//
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//##################################################################################################
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#pragma once
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#include <QPointer>
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#include <vector>
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class QUndoStack;
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class QString;
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namespace caf
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{
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class CmdExecuteCommand;
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class CmdUiCommandSystemImpl;
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//==================================================================================================
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///
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//==================================================================================================
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class CmdExecCommandManager
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{
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public:
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static CmdExecCommandManager* instance();
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CmdExecCommandManager( const CmdExecCommandManager& ) = delete;
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CmdExecCommandManager& operator=( const CmdExecCommandManager& ) = delete;
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// When the undoFeature is enabled, execute commands are inserted in the undo stack
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// The application can use the QUndoStack to display/modify execute commands wrapped in QUndoCommand objects
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void enableUndoCommandSystem( bool enable );
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QUndoStack* undoStack();
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// If undo system is enabled, the PdmExecuteCommand is wrapped in a QUndoCommand and inserted in the QUndoStack.
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// If undo is not possible (undo system not enabled, or pdm object has disabled undo),
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// the PdmExecuteCommand is executed and deleted
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void processExecuteCommand( CmdExecuteCommand* executeCommand );
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void processExecuteCommandsAsMacro( const QString& macroName, std::vector<CmdExecuteCommand*>& commands );
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private:
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CmdExecCommandManager();
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// Creates the object (CmdUiCommandSystemImpl) used to communicate from UI editors to advanced parts of the command
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// system This includes support for undo system and default command features for add/delete of items in
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// PdmChildArrayFieldHandle and creation of field changed commands so a change in an editor can be put into
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// undo/redo CmdUiCommandSystemImpl is a requirement for using the undo system
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void activateCommandSystem();
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void deactivateCommandSystem();
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bool isUndoEnabledForCurrentCommand( CmdExecuteCommand* command );
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friend class CmdExecCommandSystemActivator;
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friend class CmdExecCommandSystemDeactivator;
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private:
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QPointer<QUndoStack> m_undoStack;
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CmdUiCommandSystemImpl* m_commandFeatureInterface;
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};
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//==================================================================================================
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/// Helper class used to temporarily disable the command system including undo/redo functionality
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//==================================================================================================
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class CmdExecCommandSystemDeactivator
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{
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public:
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CmdExecCommandSystemDeactivator() { CmdExecCommandManager::instance()->deactivateCommandSystem(); }
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~CmdExecCommandSystemDeactivator() { CmdExecCommandManager::instance()->activateCommandSystem(); }
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};
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//==================================================================================================
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/// Helper class used to temporarily enable the command system including undo/redo functionality
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//==================================================================================================
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class CmdExecCommandSystemActivator
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{
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public:
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CmdExecCommandSystemActivator() { CmdExecCommandManager::instance()->activateCommandSystem(); }
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~CmdExecCommandSystemActivator() { CmdExecCommandManager::instance()->deactivateCommandSystem(); }
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};
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} // end namespace caf
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