1 /**************************************************************************** 2 ** 3 ** This file is part of the LibreCAD project, a 2D CAD program 4 ** 5 ** Copyright (C) 2015 A. Stebich (librecad@mail.lordofbikes.de) 6 ** Copyright (C) 2010 R. van Twisk (librecad@rvt.dds.nl) 7 ** Copyright (C) 2001-2003 RibbonSoft. All rights reserved. 8 ** 9 ** 10 ** This file may be distributed and/or modified under the terms of the 11 ** GNU General Public License version 2 as published by the Free Software 12 ** Foundation and appearing in the file gpl-2.0.txt included in the 13 ** packaging of this file. 14 ** 15 ** This program is distributed in the hope that it will be useful, 16 ** but WITHOUT ANY WARRANTY; without even the implied warranty of 17 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 ** GNU General Public License for more details. 19 ** 20 ** You should have received a copy of the GNU General Public License 21 ** along with this program; if not, write to the Free Software 22 ** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 23 ** 24 ** This copyright notice MUST APPEAR in all copies of the script! 25 ** 26 **********************************************************************/ 27 28 29 #ifndef RS_LAYERLIST_H 30 #define RS_LAYERLIST_H 31 32 #include <QList> 33 #include "rs_layer.h" 34 35 class RS_LayerListListener; 36 class QG_LayerWidget; 37 38 /** 39 * A list of layers. 40 * 41 * @author Andrew Mustun 42 */ 43 class RS_LayerList { 44 public: 45 RS_LayerList(); 46 virtual ~RS_LayerList() = default; 47 48 void clear(); 49 50 /** 51 * @return Number of layers in the list. 52 */ count()53 unsigned int count() const { 54 return layers.count(); 55 } 56 57 /** 58 * @return Layer at given position or NULL if i is out of range. 59 */ at(unsigned int i)60 RS_Layer* at(unsigned int i) { 61 return layers.at(i); 62 } 63 QList<RS_Layer*>::iterator begin(); 64 QList<RS_Layer*>::iterator end(); 65 QList<RS_Layer*>::const_iterator begin()const; 66 QList<RS_Layer*>::const_iterator end()const; 67 68 void activate(const QString& name, bool notify = false); 69 void activate(RS_Layer* layer, bool notify = false); 70 //! @return The active layer of NULL if no layer is activated. getActive()71 RS_Layer* getActive() { 72 return activeLayer; 73 } 74 virtual void add(RS_Layer* layer); 75 virtual void remove(RS_Layer* layer); 76 virtual void edit(RS_Layer* layer, const RS_Layer& source); 77 RS_Layer* find(const QString& name); 78 int getIndex(const QString& name); 79 int getIndex(RS_Layer* layer); 80 void toggle(const QString& name); 81 void toggle(RS_Layer* layer); 82 void toggleLock(RS_Layer* layer); 83 void togglePrint(RS_Layer* layer); 84 void toggleConstruction(RS_Layer* layer); 85 void freezeAll(bool freeze); 86 void lockAll(bool lock); 87 88 //! sets the layerWidget pointer in RS_LayerListClass setLayerWitget(QG_LayerWidget * lw)89 void setLayerWitget(QG_LayerWidget * lw) { 90 layerWidget=lw; 91 } 92 //! @return the layerWidget pointer inside the RS_LayerListClass getLayerWitget()93 QG_LayerWidget* getLayerWitget() { 94 return layerWidget; 95 } 96 //! @return First layer of the list. 97 //RS_Layer* firstLayer() { 98 // return layers.first(); 99 //} 100 /** @return Next layer from the list after 101 * calling firstLayer() or nextLayer(). 102 */ 103 //RS_Layer* nextLayer() { 104 // return layers.next(); 105 //} 106 107 void addListener(RS_LayerListListener* listener); 108 void removeListener(RS_LayerListListener* listener); 109 110 /** 111 * Sets the layer lists modified status to 'm'. 112 */ 113 void setModified(bool m); 114 115 /** 116 * @retval true The layer list has been modified. 117 * @retval false The layer list has not been modified. 118 */ isModified()119 virtual bool isModified() const { 120 return modified; 121 } 122 /** 123 * @brief sort by layer names 124 */ 125 void sort(); 126 127 friend std::ostream& operator << (std::ostream& os, RS_LayerList& l); 128 129 private: 130 //! layers in the graphic 131 QList<RS_Layer*> layers; 132 //! List of registered LayerListListeners 133 QList<RS_LayerListListener*> layerListListeners; 134 QG_LayerWidget* layerWidget; 135 //! Currently active layer 136 RS_Layer* activeLayer; 137 /** Flag set if the layer list was modified and not yet saved. */ 138 bool modified; 139 }; 140 141 #endif 142