QtSceneGraphWidget.hh

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//=============================================================================
//
//  CLASS QtSceneGraphWidget
//
//=============================================================================


#ifndef ACG_QTSCENEGRAPHWIDGET_HH
#define ACG_QTSCENEGRAPHWIDGET_HH


//== INCLUDES =================================================================

#include <ACG/Config/ACGDefines.hh>
#include <ACG/Scenegraph/BaseNode.hh>
#include <QDialog>
#include <QKeyEvent>
#include <QMenu>
#include <QTreeWidget>
#include <QMap>


//== FORWARDDECLARATIONS ======================================================



//== NAMESPACES ===============================================================


namespace ACG {
namespace QtWidgets {


//== CLASS DEFINITION =========================================================

class ACGDLLEXPORT SceneGraphWidgetGenerator {

public:
  // constructor
  SceneGraphWidgetGenerator();

  // destructor
  virtual ~SceneGraphWidgetGenerator() {}

  virtual QWidget* getWidget(SceneGraph::BaseNode* _node );

  virtual bool canHandle(std::string _className);

  virtual std::string handles();

  virtual QString contextMenuName();

protected:

  QMap< SceneGraph::BaseNode* , QWidget* > widgetMap_;
};



class ACGDLLEXPORT QtSceneGraphWidget : public QTreeWidget
{
  Q_OBJECT

public:

  QtSceneGraphWidget(QWidget* _parent = 0,
                     SceneGraph::BaseNode* _rootNode = 0);


  virtual ~QtSceneGraphWidget() {}

  enum Columns { Node, Type, Status, Mode };


  class Item : public QTreeWidgetItem
  {
  public:
    // root constructor
    Item(QTreeWidget* _parent,
         SceneGraph::BaseNode* _node);

    // child constructor
    Item(Item* _parent,
         SceneGraph::BaseNode* _node);

    // get node
    SceneGraph::BaseNode * node() { return node_; }

    // update text, etc.
    void update();

  private:
    SceneGraph::BaseNode*  node_;
  };



public slots:

  void update( ACG::SceneGraph::BaseNode* _rootNode );


signals:

  void signalNodeChanged(ACG::SceneGraph::BaseNode* _node);


private slots:

  void slotItemPressed( QTreeWidgetItem * _item,
                        int            _col );

  void slotItemExpandedOrCollapsed( QTreeWidgetItem * _item );

  void slotNodeChanged( ACG::SceneGraph::BaseNode * _node );

  void slotModeMenu  ( QAction * _action );
  void slotStatusMenu( QAction * _action );

  void slotEditMaterial();
  void slotEditTexture();
  void slotEditShader();
  void slotEditClipPlanes();
  void slotEditCoordinateFrame();



private:

  QtSceneGraphWidget( const QtSceneGraphWidget & _rhs );
  QtSceneGraphWidget & operator=( const QtSceneGraphWidget & _rhs );

  void update( SceneGraph::BaseNode * _node, Item * _parent );

  void keyPressEvent(QKeyEvent* _event);
  void keyReleaseEvent(QKeyEvent* _event);



  SceneGraph::BaseNode * rootNode_;

  QMenu *                modeMenu_;

  Item  *                curItem_;
  bool                   shiftPressed_; // store shift for popup menu

  struct StatusActions {
    QMenu   * menu_;
    QAction * actionActive_;
    QAction * actionHideNode_;
    QAction * actionHideChildren_;
    QAction * actionHideSubtree_;
  } statusActions_;
  
  public slots:
  
    void expandAll();

    void updateAll();

  public: 

    bool addWidgetGenerator( SceneGraphWidgetGenerator* _generator );

    void setGeneratorMap( QMap< std::string , SceneGraphWidgetGenerator* > _map) { generatorMap_ = _map; }; 

  private:
    QMap< std::string , SceneGraphWidgetGenerator* > generatorMap_;
};



//== CLASS DEFINITION =========================================================


class ACGDLLEXPORT QtSceneGraphDialog : public QDialog
{
  Q_OBJECT

public:

  QtSceneGraphDialog( QWidget              * _parent = 0,
                      SceneGraph::BaseNode * _rootNode = 0 );


public slots:

  void update(ACG::SceneGraph::BaseNode* _rootNode);


signals:

  void signalNodeChanged(ACG::SceneGraph::BaseNode* _node);


private slots:

  void slotNodeChanged(ACG::SceneGraph::BaseNode* _node);


public:
  void setGeneratorMap( QMap< std::string , SceneGraphWidgetGenerator* > _map) { sgw_->setGeneratorMap(_map); }; 

private:

  QtSceneGraphWidget * sgw_;

};


//=============================================================================
} // namespace ACG
} // namespace QtWidgets
//=============================================================================
#endif // ACG_QTSCENEGRAPHWIDGET_HH defined
//=============================================================================