init

lib/gui/rs_eventhandler.h

@@ -0,0 +1,106 @@
+/****************************************************************************
+**
+** 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_EVENTHANDLER_H
+#define RS_EVENTHANDLER_H
+
+#include <QObject>
+
+#include "rs_vector.h"
+
+class RS_ActionInterface;
+class QAction;
+class QMouseEvent;
+class QKeyEvent;
+class RS_CommandEvent;
+class RS_Vector;
+
+struct RS_SnapMode;
+
+/**
+ * The event handler owns and manages all actions that are currently
+ * active. All events going from the view to the actions come over
+ * this class.
+ */
+class RS_EventHandler : public QObject
+{
+    Q_OBJECT
+
+public:
+    RS_EventHandler(QObject* parent = 0);
+    ~RS_EventHandler();
+
+    void setQAction(QAction* action);
+
+    void back();
+    void enter();
+
+    void mousePressEvent(QMouseEvent *e);
+    void mouseReleaseEvent(QMouseEvent *e);
+    void mouseMoveEvent(QMouseEvent *e);
+    void mouseLeaveEvent();
+    void mouseEnterEvent();
+
+    void keyPressEvent(QKeyEvent* e);
+    void keyReleaseEvent(QKeyEvent* e);
+
+    void commandEvent(RS_CommandEvent* e);
+    void enableCoordinateInput();
+    void disableCoordinateInput();
+
+    void setDefaultAction(RS_ActionInterface* action);
+	RS_ActionInterface* getDefaultAction() const;
+
+    void setCurrentAction(RS_ActionInterface* action);
+	RS_ActionInterface* getCurrentAction();
+	bool isValid(RS_ActionInterface* action) const;
+
+    void killSelectActions();
+    void killAllActions();
+
+    bool hasAction();
+    void cleanUp();
+	void debugActions() const;
+    void setSnapMode(RS_SnapMode sm);
+    void setSnapRestriction(RS2::SnapRestriction sr);
+
+    //! return true if the current action is for selecting
+    bool inSelectionMode();
+
+private:
+
+	QAction* q_action{nullptr};
+	RS_ActionInterface* defaultAction{nullptr};
+	QList<RS_ActionInterface*> currentActions;
+	bool coordinateInputEnabled{true};
+    RS_Vector relative_zero;
+
+public slots:
+    void setRelativeZero(const RS_Vector&);
+};
+
+#endif