add SwitchBoard node class

src/Gui/CMakeLists.txt

@@ -932,6 +932,7 @@ SET(Inventor_CPP_SRCS
     Inventor/SoDrawingGrid.cpp
     Inventor/SoAutoZoomTranslation.cpp
     Inventor/MarkerBitmaps.cpp
+    Inventor/SmSwitchboard.cpp
     SoFCBackgroundGradient.cpp
     SoFCBoundingBox.cpp
     SoFCColorBar.cpp
@@ -956,6 +957,7 @@ SET(Inventor_SRCS
     Inventor/SoDrawingGrid.h
     Inventor/SoAutoZoomTranslation.h
     Inventor/MarkerBitmaps.h
+    Inventor/SmSwitchboard.h
     SoFCBackgroundGradient.h
     SoFCBoundingBox.h
     SoFCColorBar.h

src/Gui/Inventor/SmSwitchboard.cpp

@@ -0,0 +1,210 @@
+/**************************************************************************\
+ * Copyright (c) Kongsberg Oil & Gas Technologies AS
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * Neither the name of the copyright holder nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+\**************************************************************************/
+
+/*!
+  \class SmSwitchboard SmSwitchboard.h SmallChange/nodes/SmSwitchboard.h
+  \brief The SmSwitchboard class is a group node that can toggle children
+  on and off arbitrarily.
+
+  FIXME: write doc
+
+  \ingroup nodes
+*/
+
+// FIXME: implement proper searching / SearchAction handling  2002-02-07 larsa
+// FIXME: implement proper writing / WriteAction handling  2002-02-07 larsa
+
+#include "PreCompiled.h"
+#include "SmSwitchboard.h"
+#include <Inventor/nodes/SoSubNode.h>
+#include <Inventor/misc/SoChildList.h>
+
+#include <Inventor/actions/SoGetBoundingBoxAction.h>
+#include <Inventor/actions/SoSearchAction.h>
+#include <Inventor/actions/SoGetMatrixAction.h>
+#include <Inventor/actions/SoGLRenderAction.h>
+#include <Inventor/actions/SoPickAction.h>
+#include <Inventor/actions/SoHandleEventAction.h>
+#include <Inventor/actions/SoCallbackAction.h>
+#include <Inventor/actions/SoGetPrimitiveCountAction.h>
+#include <Inventor/actions/SoWriteAction.h>
+#include <Inventor/SoOutput.h>
+
+#include <Inventor/errors/SoDebugError.h>
+
+/*!
+  \var SoMFBool SmSwitchboard::enable
+
+  Selects which child to traverse during rendering (and some other)
+  actions.
+
+  When the length of this multifield is larger than the number of children
+  this group has, the enable list is modulated over the children.  This lets
+  you have full control over the number of times and order each child is
+  traversed.
+
+  Default enabled value is \c FALSE.
+*/
+
+// *************************************************************************
+
+// doc in super
+void
+SmSwitchboard::initClass(void)
+{
+  SO_NODE_INIT_CLASS(SmSwitchboard, SoGroup, SoGroup);
+}
+
+SO_NODE_SOURCE(SmSwitchboard);
+
+/*!
+  Default constructor.
+*/
+SmSwitchboard::SmSwitchboard(void)
+{
+  SO_NODE_CONSTRUCTOR(SmSwitchboard);
+
+  SO_NODE_ADD_FIELD(enable, (FALSE));
+}
+
+/*!
+  Constructor.
+
+  The argument should be the approximate number of children which is
+  expected to be inserted below this node. The number need not be
+  exact, as it is only used as a hint for better memory resource
+  allocation.
+*/
+SmSwitchboard::SmSwitchboard(int numchildren)
+  : inherited(numchildren)
+{
+  SO_NODE_CONSTRUCTOR(SmSwitchboard);
+
+  SO_NODE_ADD_FIELD(enable, (FALSE));
+}
+
+/*!
+  Destructor.
+*/
+SmSwitchboard::~SmSwitchboard(void) // virtual, protected
+{
+}
+
+// Documented in superclass.
+void
+SmSwitchboard::doAction(SoAction * action)
+{
+  // FIXME: take PathCode and stuff into consideration...
+  if (action->isOfType(SoGetBoundingBoxAction::getClassTypeId())) {
+    // calculate center of bbox if bboxaction. This makes the
+    // switchboard node behave exactly like a group node
+    SoGetBoundingBoxAction * bbaction = (SoGetBoundingBoxAction*) action;
+    // Initialize accumulation variables.
+    SbVec3f acccenter(0.0f, 0.0f, 0.0f);
+    int numcenters = 0;
+    for (int idx = 0; idx < this->enable.getNum(); idx++) {
+      const int numchildren = this->children->getLength();
+      if ( numchildren > 0 )
+        action->traverse((*this->children)[idx % numchildren]);
+      // If center point is set, accumulate.
+      if (bbaction->isCenterSet()) {
+        acccenter += bbaction->getCenter();
+        numcenters++;
+        bbaction->resetCenter();
+      }
+    }
+    if (numcenters != 0) {
+      bbaction->setCenter(acccenter / float(numcenters), FALSE);
+    }
+  } else { // not a GetBoundingBoxAction
+    for ( int idx = 0; idx < this->enable.getNum(); idx++ ) {
+      if ( this->enable[idx] ) {
+        const int numchildren = this->children->getLength();
+        if ( numchildren > 0 )
+          action->traverse((*this->children)[idx % numchildren]);
+      }
+    }
+  }
+}
+
+void
+SmSwitchboard::GLRender(SoGLRenderAction * action)
+{
+  SmSwitchboard::doAction((SoAction *) action);
+}
+
+void
+SmSwitchboard::getBoundingBox(SoGetBoundingBoxAction * action)
+{
+  SmSwitchboard::doAction((SoAction *) action);
+}
+
+void
+SmSwitchboard::getMatrix(SoGetMatrixAction * action)
+{
+  switch (action->getCurPathCode()) {
+  case SoAction::OFF_PATH:
+  case SoAction::IN_PATH:
+    SmSwitchboard::doAction((SoAction *) action);
+    break;
+  default:
+    break;
+  }
+}
+
+void
+SmSwitchboard::callback(SoCallbackAction *action)
+{
+  SmSwitchboard::doAction(action);
+}
+
+// Documented in superclass.
+void
+SmSwitchboard::pick(SoPickAction *action)
+{
+  SmSwitchboard::doAction((SoAction*)action);
+}
+
+// Documented in superclass.
+void
+SmSwitchboard::handleEvent(SoHandleEventAction *action)
+{
+  SmSwitchboard::doAction(action);
+}
+
+void
+SmSwitchboard::search(SoSearchAction * action)
+{
+  SoNode::search(action);
+  if (action->isFound()) return;
+  SmSwitchboard::doAction(action);
+}

src/Gui/Inventor/SmSwitchboard.h

@@ -0,0 +1,68 @@
+#ifndef SMALLCHANGE_SWITCHBOARD_H
+#define SMALLCHANGE_SWITCHBOARD_H
+
+/**************************************************************************\
+ * Copyright (c) Kongsberg Oil & Gas Technologies AS
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * Neither the name of the copyright holder nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+\**************************************************************************/
+
+#include <Inventor/nodes/SoGroup.h>
+#include <Inventor/fields/SoMFBool.h>
+#include <Inventor/nodes/SoSubNode.h>
+
+//#include <SmallChange/basic.h>
+
+
+class GuiExport SmSwitchboard : public SoGroup {
+  typedef SoGroup inherited;
+  SO_NODE_HEADER(SmSwitchboard);
+
+public:
+  static void initClass(void);
+  SmSwitchboard(void);
+  SmSwitchboard(int numchildren);
+
+  SoMFBool enable;
+
+  virtual void doAction(SoAction * action);
+  virtual void callback(SoCallbackAction * action);
+  virtual void GLRender(SoGLRenderAction * action);
+  virtual void pick(SoPickAction * action);
+  virtual void getBoundingBox(SoGetBoundingBoxAction * action);
+  virtual void handleEvent(SoHandleEventAction * action);
+  virtual void getMatrix(SoGetMatrixAction * action);
+  virtual void search(SoSearchAction * action);
+
+protected:
+  virtual ~SmSwitchboard(void);
+
+};
+
+#endif // !SMALLCHANGE_SWITCHBOARD_H

src/Gui/SoFCDB.cpp

@@ -54,6 +54,7 @@
 #include "Inventor/SoDrawingGrid.h"
 #include "Inventor/SoAutoZoomTranslation.h"
 #include "Inventor/MarkerBitmaps.h"
+#include "Inventor/SmSwitchboard.h"
 #include "SoFCCSysDragger.h"
 
 #include "propertyeditor/PropertyItem.h"
@@ -118,6 +119,7 @@ void Gui::SoFCDB::init()
     SoAutoZoomTranslation           ::initClass();
     MarkerBitmaps                   ::initClass();
     SoFCCSysDragger                 ::initClass();
+    SmSwitchboard                   ::initClass();
 
     PropertyItem                    ::init();
     PropertySeparatorItem           ::init();