upiemenu.hpp

/* ==================================================== ======== ======= *
*
*  upiemenu.hpp: Pie Menus
*  Ubit Project
*  Part of the Ubit Toolkit: A Brick Construction Game Model for Creating GUIs
*  (C) 1999-2006 EricLecolinet / ENST Paris / http://www.enst.fr/~elc/ubit
*
* ***********************************************************************
* COPYRIGHT NOTICE :
* THIS PROGRAM IS DISTRIBUTED WITHOUT ANY WARRANTY AND WITHOUT EVEN THE
* IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
* YOU CAN REDISTRIBUTE IT AND/OR MODIFY IT UNDER THE TERMS OF THE GNU
* GENERAL PUBLIC LICENSE AS PUBLISHED BY THE FREE SOFTWARE FOUNDATION;
* EITHER VERSION 2 OF THE LICENSE, OR (AT YOUR OPTION) ANY LATER VERSION.
* SEE FILES 'COPYRIGHT' AND 'COPYING' FOR MORE DETAILS.
* ***********************************************************************
* ==================================================== [(c)Elc] ======= *
* ==================================================== ======== ======= */

//pragma ident  "@(#)upiemenu.hpp       ubit:05.05.00"
#ifndef _upiemenu_hpp_
#define _upiemenu_hpp_
#include <ubit/umenu.hpp>
#include <ubit/uboxGeom.hpp>
namespace ubit {
  
/* ==================================================== ===== ======= */
class UPiemenu : public UPopmenu {
public:
  UBIT_ELEMENT_CLASS(UPiemenu, UPopmenu)

  UPiemenu(const UArgs& = UArgs::none);
  virtual ~UPiemenu();

  friend UPiemenu& upiemenu(const UArgs& a = UArgs::none) {return *new UPiemenu(a);}

  // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

  virtual UBox* item(int n);
  virtual UBox* getItem(int n) const;
  virtual UBox* getSelectedItem() const;

  virtual int getSelectedIndex() const;

  virtual UBox* createItem();
      
  // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
  
  virtual void open(UMouseEvent& e) {show(e);}

  virtual void show(bool state, UDisp*);
  virtual void show(bool state = true) {UPiemenu::show(state,null);}
  
  virtual void show(UMouseEvent& e, float x = 0, float y = 0) 
  {UPiemenu::show(e, x, y, show_delay);}
  virtual void show(UMouseEvent&, float x, float y, UTime delay);
  UTime getShowDelay() const {return show_delay;}

  void setShowDelay(UTime d) {show_delay = d;}

  // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

  enum MenuStyle {CONCENTRIC, COMPOUND, MULTISTROKE};
  void setMenuStyle(int);  
  
  virtual void addSubMenu(int N, UPiemenu* submenu);
  
  //virtual void removeSubMenu(int N, UPiemenu* submenu);
  
  void setPieAlpha(UAlpha& a) {pie_alpha = a;}
  void setPieColor(UColor& c) {pie_color = c;}
  void setPieBorderColor(UColor& c) {pie_border_color = c;}
  void setSliceColor(UColor& c) {slice_color = c;}
  void setCenterColor(UColor& c) {center_color = c;}
  void setCenterBorderColor(UColor& c) {center_border_color = c;}
  int  getCenterRadius() const {return center_radius;}
  
  void setCenterRadius(int d) {center_radius = d;}
  int  getItemRadius() const {return item_radius;}
  
  void setItemRadius(int d) {item_radius = d;}

  UWin* getContainingWin(UDisp* = null) const;  
  
  UPoint getCenterInContainingWin(UDisp* = null) const;
  
  const UPoint& getLastDrag() const {return last_drag;}
  
  // - - - impl - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

  UScale* getScale();
  float getScaleValue();
     
  virtual void pressCB(UMouseEvent&);
 
  virtual void releaseCB(UMouseEvent&);
  
  virtual void motionCB(UMouseEvent&);

  virtual void hideCB(UEvent&);

  virtual void paintCB(UPaintEvent&);
    
  virtual void resizeCB(UEvent&);
    
  virtual void armItemCB(UMouseEvent& e, UPiemenu* submenu);

  virtual void disarmItemCB(UMouseEvent& e, UPiemenu* submenu);

  virtual float getCentredCoords(UMouseEvent& e, UPoint& p, bool& must_forward);

  virtual void reset(UMouseEvent*);

  virtual void startNoviceMode();
  
  virtual void forwardToMenu(UPiemenu* submenu);
 
   virtual void receiveFromMenu(UPiemenu* supermenu);
 
   virtual void unlinkFromAndToMenus();
 
   virtual void closeMenus(UMouseEvent& e, bool);

   static UStyle* createStyle();

#ifndef NO_DOC
protected:
  unsigned short submenu_layout;
  unsigned short ctlmenu_mode:1, novice_mode:1, in_show_function:1, entered:1; 
  short center_radius, item_radius, item_margin;
  short curitem;
  UPoint last_arm, last_drag;
  UTime show_delay;
  uptr<UTimer> ptimer;
  uptr<UBox> parmed;
  UPiemenu *from_menu, *to_menu;
  UGroup  gitems;
  UWidth  width; 
  UHeight height;
  uptr<UAlpha> pie_alpha;
  uptr<UColor> pie_color, center_color, slice_color, pie_border_color, center_border_color;
#endif
};

}
#endif
/* ==================================================== [TheEnd] ======= */
/* ==================================================== [(c)Elc] ======= */

---