use shift key to speed up camera movement

apps/opencs/view/render/scenewidget.cpp

@@ -16,7 +16,7 @@ namespace CSVRender
         , mWindow(NULL)
         , mCamera(NULL)
         , mSceneMgr(NULL), mNavigationMode (NavigationMode_Free), mUpdate (false)
-        , mKeyForward (false), mKeyBackward (false)
+        , mKeyForward (false), mKeyBackward (false), mFast (false)
     {
         setAttribute(Qt::WA_PaintOnScreen);
         setAttribute(Qt::WA_NoSystemBackground);
@@ -143,6 +143,7 @@ namespace CSVRender
         {
             case Qt::Key_W: mKeyForward = true; break;
             case Qt::Key_S: mKeyBackward = true; break;
+            case Qt::Key_Shift: mFast = true; break;
             default: QWidget::keyPressEvent (event);
         }
     }
@@ -153,6 +154,7 @@ namespace CSVRender
         {
             case Qt::Key_W: mKeyForward = false; break;
             case Qt::Key_S: mKeyBackward = false; break;
+            case Qt::Key_Shift: mFast = false; break;
             default: QWidget::keyReleaseEvent (event);
         }
     }
@@ -161,6 +163,7 @@ namespace CSVRender
     {
         mKeyForward = false;
         mKeyBackward = false;
+        mFast = false;
 
         QWidget::focusOutEvent (event);
     }
@@ -169,13 +172,15 @@ namespace CSVRender
     {
         if (mKeyForward && !mKeyBackward)
         {
-            mCamera->move (mCamera->getDirection());
+            int factor = mFast ? 4 : 1;
+            mCamera->move (factor * mCamera->getDirection());
             mUpdate = true;
         }
 
         if (!mKeyForward && mKeyBackward)
         {
-            mCamera->move (-mCamera->getDirection());
+            int factor = mFast ? 4 : 1;
+            mCamera->move (factor * -mCamera->getDirection());
             mUpdate = true;
         }
 

apps/opencs/view/render/scenewidget.hpp

@@ -49,6 +49,7 @@ namespace CSVRender
             bool mUpdate;
             int mKeyForward;
             int mKeyBackward;
+            bool mFast;
 
         private slots: