1 /**************************************************************************** 2 ** 3 ** This file is part of the LibreCAD project, a 2D CAD program 4 ** 5 ** Copyright (C) 2010 R. van Twisk (librecad@rvt.dds.nl) 6 ** Copyright (C) 2001-2003 RibbonSoft. All rights reserved. 7 ** 8 ** 9 ** This file may be distributed and/or modified under the terms of the 10 ** GNU General Public License version 2 as published by the Free Software 11 ** Foundation and appearing in the file gpl-2.0.txt included in the 12 ** packaging of this file. 13 ** 14 ** This program is distributed in the hope that it will be useful, 15 ** but WITHOUT ANY WARRANTY; without even the implied warranty of 16 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 ** GNU General Public License for more details. 18 ** 19 ** You should have received a copy of the GNU General Public License 20 ** along with this program; if not, write to the Free Software 21 ** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 22 ** 23 ** This copyright notice MUST APPEAR in all copies of the script! 24 ** 25 **********************************************************************/ 26 27 28 #ifndef RS_PREVIEWACTIONINTERFACE_H 29 #define RS_PREVIEWACTIONINTERFACE_H 30 31 #include <memory> 32 #include "rs_actioninterface.h" 33 34 /** 35 * This is the interface that must be implemented for all 36 * action classes which need a preview. 37 * 38 * @author Andrew Mustun 39 */ 40 class RS_PreviewActionInterface : public RS_ActionInterface { 41 public: 42 RS_PreviewActionInterface(const char* name, 43 RS_EntityContainer& container, 44 RS_GraphicView& graphicView); 45 ~RS_PreviewActionInterface() override; 46 47 void init(int status=0) override; 48 void finish(bool updateTB=true) override; 49 void suspend() override; 50 void resume() override; 51 void trigger() override; 52 void drawPreview(); 53 void deletePreview(); 54 55 private: 56 57 protected: 58 /** 59 * Preview that holds the entities to be previewed. 60 */ 61 std::unique_ptr<RS_Preview> preview; 62 bool hasPreview;//whether preview is in use 63 // /** 64 // * Current offset of the preview. 65 // */ 66 // std::unique_ptr<RS_Vector> offset; 67 }; 68 69 #endif 70