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newspark110/lib/engine/rs_clipboard.h
Chenwenxuan edac2715f0 init
2024-03-06 14:54:30 +08:00

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2.6 KiB
C++

/****************************************************************************
**
** This file is part of the LibreCAD project, a 2D CAD program
**
** Copyright (C) 2010 R. van Twisk (librecad@rvt.dds.nl)
** Copyright (C) 2001-2003 RibbonSoft. All rights reserved.
**
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file gpl-2.0.txt included in the
** packaging of this file.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
**
** This copyright notice MUST APPEAR in all copies of the script!
**
**********************************************************************/
#ifndef RS_CLIPBOARD_H
#define RS_CLIPBOARD_H
#include <iosfwd>
#include "rs_graphic.h"
#define RS_CLIPBOARD RS_Clipboard::instance()
class RS_Block;
class RS_Layer;
class RS_Entity;
/**
* LibreCAD internal clipboard. We don't use the system clipboard for
* better portaility.
* Implemented as singleton.
*
* @author Andrew Mustun
*/
class RS_Clipboard {
protected:
RS_Clipboard() {
}
public:
/**
* @return Instance to the unique clipboard object.
*/
static RS_Clipboard* instance() {
if (uniqueInstance==NULL) {
uniqueInstance = new RS_Clipboard();
}
return uniqueInstance;
}
void clear();
void addBlock(RS_Block* b);
bool hasBlock(const QString& name);
int countBlocks() {
return graphic.countBlocks();
}
RS_Block* blockAt(int i) {
return graphic.blockAt(i);
}
void addLayer(RS_Layer* l);
bool hasLayer(const QString& name);
int countLayers() {
return graphic.countLayers();
}
RS_Layer* layerAt(int i) {
return graphic.layerAt(i);
}
void addEntity(RS_Entity* e);
unsigned count() {
return graphic.count();
}
RS_Entity* entityAt(unsigned i) {
return graphic.entityAt(i);
}
RS_Entity* firstEntity() {
return graphic.firstEntity();
}
RS_Entity* nextEntity() {
return graphic.nextEntity();
}
RS_Graphic* getGraphic() {
return &graphic;
}
friend std::ostream& operator << (std::ostream& os, RS_Clipboard& cb);
protected:
static RS_Clipboard* uniqueInstance;
RS_Graphic graphic;
};
#endif