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_EVENTHANDLER_H 29 #define RS_EVENTHANDLER_H 30 31 #include <QObject> 32 33 #include "rs_vector.h" 34 35 class RS_ActionInterface; 36 class QAction; 37 class QMouseEvent; 38 class QKeyEvent; 39 class RS_CommandEvent; 40 class RS_Vector; 41 42 struct RS_SnapMode; 43 44 /** 45 * The event handler owns and manages all actions that are currently 46 * active. All events going from the view to the actions come over 47 * this class. 48 */ 49 class RS_EventHandler : public QObject 50 { 51 Q_OBJECT 52 53 public: 54 RS_EventHandler(QObject* parent = 0); 55 ~RS_EventHandler(); 56 57 void setQAction(QAction* action); 58 59 void back(); 60 void enter(); 61 62 void mousePressEvent(QMouseEvent *e); 63 void mouseReleaseEvent(QMouseEvent *e); 64 void mouseMoveEvent(QMouseEvent *e); 65 void mouseLeaveEvent(); 66 void mouseEnterEvent(); 67 68 void keyPressEvent(QKeyEvent* e); 69 void keyReleaseEvent(QKeyEvent* e); 70 71 void commandEvent(RS_CommandEvent* e); 72 void enableCoordinateInput(); 73 void disableCoordinateInput(); 74 75 void setDefaultAction(RS_ActionInterface* action); 76 RS_ActionInterface* getDefaultAction() const; 77 78 void setCurrentAction(RS_ActionInterface* action); 79 RS_ActionInterface* getCurrentAction(); 80 bool isValid(RS_ActionInterface* action) const; 81 82 void killSelectActions(); 83 void killAllActions(); 84 85 bool hasAction(); 86 void cleanUp(); 87 void debugActions() const; 88 void setSnapMode(RS_SnapMode sm); 89 void setSnapRestriction(RS2::SnapRestriction sr); 90 91 //! return true if the current action is for selecting 92 bool inSelectionMode(); 93 94 private: 95 96 QAction* q_action{nullptr}; 97 RS_ActionInterface* defaultAction{nullptr}; 98 QList<RS_ActionInterface*> currentActions; 99 bool coordinateInputEnabled{true}; 100 RS_Vector relative_zero; 101 102 public slots: 103 void setRelativeZero(const RS_Vector&); 104 }; 105 106 #endif 107