[TD]implement navigation styles

src/Mod/TechDraw/Gui/QGVNavStyleRevit.cpp

@@ -0,0 +1,89 @@
+/***************************************************************************
+ *   Copyright (c) 2022 Wanderer Fan <wandererfan@gmail.com>               *
+ *                                                                         *
+ *   This file is part of the FreeCAD CAx development system.              *
+ *                                                                         *
+ *   This library is free software; you can redistribute it and/or         *
+ *   modify it under the terms of the GNU Library General Public           *
+ *   License as published by the Free Software Foundation; either          *
+ *   version 2 of the License, or (at your option) any later version.      *
+ *                                                                         *
+ *   This library  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 Library General Public License for more details.                  *
+ *                                                                         *
+ *   You should have received a copy of the GNU Library General Public     *
+ *   License along with this library; see the file COPYING.LIB. If not,    *
+ *   write to the Free Software Foundation, Inc., 59 Temple Place,         *
+ *   Suite 330, Boston, MA  02111-1307, USA                                *
+ *                                                                         *
+ ***************************************************************************/
+
+#include "PreCompiled.h"
+#ifndef _PreComp_
+#include <QApplication>
+#include <QGuiApplication>
+#include <QMouseEvent>
+#endif
+
+#include "QGVPage.h"
+#include "QGVNavStyleRevit.h"
+
+using namespace TechDrawGui;
+
+namespace TechDrawGui {
+
+QGVNavStyleRevit::QGVNavStyleRevit()
+{
+}
+
+QGVNavStyleRevit::~QGVNavStyleRevit()
+{
+}
+
+void QGVNavStyleRevit::handleMousePressEvent(QMouseEvent *event)
+{
+    //pan mode 1 - LMB + RMB
+    if (event->buttons() == (Qt::LeftButton & Qt::RightButton)) {
+        startPan(event->pos());
+        event->accept();
+    } 
+    
+    //pan mode 2 - MMB
+    if (event->button() == Qt::MiddleButton) {
+        startPan(event->pos());
+        event->accept();
+    }
+}
+
+void QGVNavStyleRevit::handleMouseMoveEvent(QMouseEvent *event)
+{
+    if (getViewer()->isBalloonPlacing()) {
+        getViewer()->setBalloonCursorPos(event->pos());
+    }
+
+    if (panningActive) {
+        pan(event->pos());
+        event->accept();
+    }
+}
+
+void QGVNavStyleRevit::handleMouseReleaseEvent(QMouseEvent *event)
+{
+    if (getViewer()->isBalloonPlacing()) {
+        placeBalloon(event->pos());
+    }
+
+    if (panningActive) {
+        //stop panning if any button release
+        if ( (event->button() == Qt::LeftButton) ||
+             (event->button() == Qt::RightButton) ||
+             (event->button() == Qt::MiddleButton) ){
+            stopPan();
+            event->accept();
+        }
+    }
+}
+
+}  // namespace TechDrawGui