From 4eea2c7a86dfa5df0607066e38e212cd1017a1d4 Mon Sep 17 00:00:00 2001
From: Marc Zinnschlag <marc@zpages.de>
Date: Thu, 27 Feb 2014 15:42:59 +0100
Subject: [PATCH] added free navigation mode

---
 apps/opencs/CMakeLists.txt                 |  2 +-
 apps/opencs/view/render/navigationfree.cpp | 60 ++++++++++++++++++++++
 apps/opencs/view/render/navigationfree.hpp | 32 ++++++++++++
 apps/opencs/view/world/scenesubview.cpp    |  2 +-
 apps/opencs/view/world/scenesubview.hpp    |  2 +
 5 files changed, 96 insertions(+), 2 deletions(-)
 create mode 100644 apps/opencs/view/render/navigationfree.cpp
 create mode 100644 apps/opencs/view/render/navigationfree.hpp

diff --git a/apps/opencs/CMakeLists.txt b/apps/opencs/CMakeLists.txt
index bb4a9d329..eba7a7acb 100644
--- a/apps/opencs/CMakeLists.txt
+++ b/apps/opencs/CMakeLists.txt
@@ -68,7 +68,7 @@ opencs_units (view/render
     )
 
 opencs_units_noqt (view/render
-    navigation navigation1st
+    navigation navigation1st navigationfree
     )
 
 opencs_units_noqt (view/world
diff --git a/apps/opencs/view/render/navigationfree.cpp b/apps/opencs/view/render/navigationfree.cpp
new file mode 100644
index 000000000..d470722bb
--- /dev/null
+++ b/apps/opencs/view/render/navigationfree.cpp
@@ -0,0 +1,60 @@
+
+#include "navigationfree.hpp"
+
+#include <OgreCamera.h>
+
+#include <QPoint>
+
+CSVRender::NavigationFree::NavigationFree() : mCamera (0) {}
+
+bool CSVRender::NavigationFree::activate (Ogre::Camera *camera)
+{
+    mCamera = camera;
+    mCamera->setFixedYawAxis (false);
+    return false;
+}
+
+bool CSVRender::NavigationFree::wheelMoved (int delta)
+{
+    mCamera->move (getFactor (true) * mCamera->getDirection() * delta);
+    return true;
+}
+
+bool CSVRender::NavigationFree::mouseMoved (const QPoint& delta, int mode)
+{
+    if (mode==0)
+    {
+        // turn camera
+        if (delta.x())
+            mCamera->yaw (Ogre::Degree (getFactor (true) * delta.x()));
+
+        if (delta.y())
+            mCamera->pitch (Ogre::Degree (getFactor (true) * delta.y()));
+
+        return true;
+    }
+    else if (mode==1)
+    {
+        // pan camera
+        if (delta.x())
+            mCamera->move (getFactor (true) * mCamera->getDerivedRight() * delta.x());
+
+        if (delta.y())
+            mCamera->move (getFactor (true) * -mCamera->getDerivedUp() * delta.y());
+
+        return true;
+    }
+
+    return false;
+}
+
+bool CSVRender::NavigationFree::handleMovementKeys (int vertical, int horizontal)
+{
+    if (vertical)
+         mCamera->move (getFactor (false) * mCamera->getDerivedUp() * vertical);
+
+    if (horizontal)
+        mCamera->move (getFactor (true) * mCamera->getDerivedRight() * horizontal);
+
+    return true;
+}
diff --git a/apps/opencs/view/render/navigationfree.hpp b/apps/opencs/view/render/navigationfree.hpp
new file mode 100644
index 000000000..fa6fdad11
--- /dev/null
+++ b/apps/opencs/view/render/navigationfree.hpp
@@ -0,0 +1,32 @@
+#ifndef OPENCS_VIEW_NAVIGATIONFREE_H
+#define OPENCS_VIEW_NAVIGATIONFREE_H
+
+#include "navigation.hpp"
+
+namespace CSVRender
+{
+    /// \brief Free camera controls
+    class NavigationFree : public Navigation
+    {
+            Ogre::Camera *mCamera;
+
+        public:
+
+            NavigationFree();
+
+            virtual bool activate (Ogre::Camera *camera);
+            ///< \return Update required?
+
+            virtual bool wheelMoved (int delta);
+            ///< \return Update required?
+
+            virtual bool mouseMoved (const QPoint& delta, int mode);
+            ///< \param mode: 0: default mouse key, 1: default mouse key and modifier key 1
+            /// \return Update required?
+
+            virtual bool handleMovementKeys (int vertical, int horizontal);
+            ///< \return Update required?
+    };
+}
+
+#endif
diff --git a/apps/opencs/view/world/scenesubview.cpp b/apps/opencs/view/world/scenesubview.cpp
index 5b7b6a587..fd327b4d1 100644
--- a/apps/opencs/view/world/scenesubview.cpp
+++ b/apps/opencs/view/world/scenesubview.cpp
@@ -86,7 +86,7 @@ void CSVWorld::SceneSubView::selectNavigationMode (const std::string& mode)
         mScene->setNavigation (&m1st);
     else if (mode=="free")
     {
-
+        mScene->setNavigation (&mFree);
     }
     else if (mode=="orbit")
     {
diff --git a/apps/opencs/view/world/scenesubview.hpp b/apps/opencs/view/world/scenesubview.hpp
index f948ecefb..8e42540e1 100644
--- a/apps/opencs/view/world/scenesubview.hpp
+++ b/apps/opencs/view/world/scenesubview.hpp
@@ -4,6 +4,7 @@
 #include "../doc/subview.hpp"
 
 #include "../render/navigation1st.hpp"
+#include "../render/navigationfree.hpp"
 
 class QModelIndex;
 
@@ -30,6 +31,7 @@ namespace CSVWorld
             TableBottomBox *mBottom;
             CSVRender::SceneWidget *mScene;
             CSVRender::Navigation1st m1st;
+            CSVRender::NavigationFree mFree;
 
         public: