uon.hpp

/************************************************************************
 *
 *  uon.hpp: Callback conditions
 *  Ubit GUI Toolkit - Version 6
 *  (C) 2009 | Eric Lecolinet | TELECOM ParisTech | 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.
 * ***********************************************************************/

#ifndef _uon_hpp_
#define _uon_hpp_ 1
#include <ubit/ucond.hpp>
namespace ubit {
  
  class UOn : public UCond {
  public:    
    static UOn
    idle,
    action,
    &arm, &disarm,
    &select, &deselect,
    enter, leave,
    click, doubleClick,
    mpress, mrelease, mdrag, mmove, 
    wheel,
    kpress, krelease,
    ktype,
    &dragStart, &dragDone, &dropEnter, &dropLeave, &dropDone,
    show, hide,
    close,
    
    paint, 
    resize, motion,
    addChild, removeChild,
    destruct, 
    winState,
    sysWM,
    change,
    propChange, dataChange, strChange, //caretChange,
    userEvent;
    
    // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    
    enum Callback {  
      DESTRUCT_CB      = 1<<12,
      CONTAINER_CB     = 1<<13,
      CHANGE_CB        = 1<<14,
      CHILD_CHANGE_CB  = 1<<15,
      VIEW_PAINT_CB    = 1<<16,
      VIEW_CHANGE_CB   = 1<<17,
      SHOW_HIDE_CB     = 1<<18,
      MOUSE_CB         = 1<<19,
      MOUSE_CROSS_CB   = 1<<20,
      MOUSE_DRAG_CB    = 1<<21,
      MOUSE_MOVE_CB    = 1<<22,
      KEY_CB           = 1<<23,
      DND_CB           = 1<<24,
      MESSAGE_CB       = 1<<25,
      WIN_STATE_CB     = 1<<27,
      SYSWM_CB         = 1<<28,
      USER_EVENT_CB    = 1<<29,
      
      CALLBACKS =  DESTRUCT_CB | CONTAINER_CB | CHANGE_CB | CHILD_CHANGE_CB
      | VIEW_PAINT_CB | VIEW_CHANGE_CB | SHOW_HIDE_CB
      | MOUSE_CB | MOUSE_CROSS_CB | MOUSE_DRAG_CB | MOUSE_MOVE_CB | KEY_CB | DND_CB 
      | MESSAGE_CB | WIN_STATE_CB | SYSWM_CB 
      /*| FILTER_EVENT_CB*/ | USER_EVENT_CB 
    };
    
    // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    // interaction state
    
    enum IState {
      ANY = -1,
      IDLE = 0,         // must be 0 (index in style arrays)
      DISABLED, ENTERED, ARMED, ACTIONED, DRAGGED, DROP_ENTERED,
      ACTION_COUNT
    };
  
    const int ID;
    
    UOn(int id, long callback_mask, int istate = -1);  // -1 == UMode::ANY
    virtual int getID() const {return ID;}
    
    // see superclass for details.
    virtual bool operator==(const UCond&) const;
    virtual bool operator!=(const UCond&) const;
    virtual const UCond* matches(const UCond&) const;
    virtual bool verifies(const UUpdateContext&, const UElem&) const;
    
    virtual UOn* toOn() {return this;}
    virtual const UOn* toOn() const {return this;}
    
  protected:
    friend class UElem;
    long callback_mask;
    int istate;
    virtual void setParentModes(UElem& parent) const;
  };
  
  // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
  
  class UOn2 : public UOn {
  public:
    typedef UElem& (UElem::*SetModeFunc)(bool);
    
    UOn2(int id, long callback_mask, int state, SetModeFunc);
    
  protected:
    virtual void setParentModes(UElem& parent) const;
    SetModeFunc set_mode_func;
  };
  
}
#endif