From 959ad3f722d02c584a0af61dec7f50f77b43dd2c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=91=D1=8B=D1=87=D0=BA=D0=BE=D0=B2=20=D0=90=D0=BD=D0=B4?=
 =?UTF-8?q?=D1=80=D0=B5=D0=B9?= <andrey@signalmodelling.ru>
Date: Thu, 1 Aug 2019 12:10:36 +0000
Subject: [PATCH] add save/restore camera to glwidget

git-svn-id: svn://db.shs.com.ru/libs@581 a8b55f48-bf90-11e4-a774-851b48703e85
---
 qglview/glwidget.cpp | 44 +++++++++++++++++++++++++++++++++++++++++++-
 qglview/glwidget.h   |  2 ++
 2 files changed, 45 insertions(+), 1 deletion(-)

diff --git a/qglview/glwidget.cpp b/qglview/glwidget.cpp
index ab09a45..94972ca 100644
--- a/qglview/glwidget.cpp
+++ b/qglview/glwidget.cpp
@@ -105,7 +105,49 @@ qreal GLWidget::selectionHaloFillAlpha() const {
 
 
 void GLWidget::addObject(GLObjectBase * o) {
-	view_->addObject(o);
+    view_->addObject(o);
+}
+
+
+QByteArray GLWidget::saveCamera() {
+    ChunkStream cs;
+    const Camera * c = view()->camera();
+    cs.add(1, c->posX());
+    cs.add(2, c->posY());
+    cs.add(3, c->posZ());
+    cs.add(4, c->aim().x());
+    cs.add(5, c->aim().y());
+    cs.add(6, c->aim().z());
+    cs.add(7, c->angleZ());
+    cs.add(8, c->angleXY());
+    cs.add(9, c->angleRoll());
+    cs.add(10, c->FOV());
+    return cs.data();
+}
+
+
+void GLWidget::restoreCamera(const QByteArray &ba) {
+    if (ba.isEmpty()) return;
+    ChunkStream cs(ba);
+    QVector3D pos, aim, ang;
+    while (!cs.atEnd()) {
+        switch (cs.read()) {
+        case 1: pos.setX(cs.getData<float>()); break;
+        case 2: pos.setY(cs.getData<float>()); break;
+        case 3: pos.setZ(cs.getData<float>()); break;
+        case 4: aim.setX(cs.getData<float>()); break;
+        case 5: aim.setY(cs.getData<float>()); break;
+        case 6: aim.setZ(cs.getData<float>()); break;
+        case 7: ang.setZ(cs.getData<float>()); break;
+        case 8: ang.setY(cs.getData<float>()); break;
+        case 9: ang.setX(cs.getData<float>()); break;
+        case 10: setFOV(cs.getData<float>()); break;
+        default: break;
+        }
+    }
+    view()->camera()->setPos(pos);
+    view()->camera()->setAim(aim);
+    view()->camera()->setAngles(ang);
 }
 
 
diff --git a/qglview/glwidget.h b/qglview/glwidget.h
index 04a0ae6..87eb6f1 100644
--- a/qglview/glwidget.h
+++ b/qglview/glwidget.h
@@ -50,6 +50,8 @@ public:
 	qreal selectionHaloFillAlpha() const;
 
 	void addObject(GLObjectBase * o);
+    QByteArray saveCamera();
+    void restoreCamera(const QByteArray & ba);
 
 public slots:
 	void stop();