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Mouse.h

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00001 /***************************************************************************
00002  *cr                                                                       
00003  *cr            (C) Copyright 1995-2011 The Board of Trustees of the           
00004  *cr                        University of Illinois                       
00005  *cr                         All Rights Reserved                        
00006  *cr                                                                   
00007  ***************************************************************************/
00008 
00009 /***************************************************************************
00010  * RCS INFORMATION:
00011  *
00012  *      $RCSfile: Mouse.h,v $
00013  *      $Author: johns $        $Locker:  $             $State: Exp $
00014  *      $Revision: 1.67 $       $Date: 2010/12/16 04:08:25 $
00015  *
00016  ***************************************************************************
00017  * DESCRIPTION:
00018  *
00019  * The Mouse UI object, which maintains the current state of the 
00020  * mouse, including what it is currently used for, and how much it has moved
00021  * from one measurement to the next.  This also deals with any pop-up or
00022  * pull-down menus available by using the mouse, as well as picking objects.
00023  *
00024  * A three-button mouse is assumed here, with the following usage:
00025  *      1) Buttons 1 and 2 : manipulation and picking.
00026  *      2) Button 3 (right): pop-up menu
00027  *
00028  * This is the general base class definition; specific versions for each
00029  * windowing/graphics system may be supplied.  This class can function as
00030  * it is, however, and will just be a 'zero' mouse - the buttons will never
00031  * be pressed, and the cursor will always be at 0,0.
00032  *
00033  ***************************************************************************/
00034 #ifndef MOUSE_OBJ_H
00035 #define MOUSE_OBJ_H
00036 
00037 #include "UIObject.h"
00038 #include "Command.h"
00039 #include "NameList.h"
00040 
00042 class Mouse : public UIObject {
00043 public:
00045   enum MoveMode {ROTATION, TRANSLATION, SCALING, LIGHT, USERPOINT, 
00046     // All "picking" modes need to be listed after PICK, 
00047     // and non-picking modes need to be listed before
00048     // This is because later code does a check on 
00049     // (enum value) >= PICK to determine if we are in 
00050     // a "picking" mode
00051     PICK, QUERY, CENTER, \
00052     LABELATOM, LABELBOND, LABELANGLE, LABELDIHEDRAL, \
00053     MOVEATOM, MOVERES, MOVEFRAG, MOVEMOL, MOVEREP,\
00054     FORCEATOM, FORCERES, FORCEFRAG, \
00055     ADDBOND};
00056 
00057   enum MouseButton { B_NONE = 0, B_LEFT = 1, B_MIDDLE, B_RIGHT };
00058 
00060   static const char *get_mode_str(MoveMode mode);
00061 
00062 private:
00063   MoveMode moveMode;          
00064   MouseButton pickInProgress; 
00065       // If zero, no picking operation is currently in progress.
00066       // If something is currently being selected with the mouse
00067       // and the button is still down, this flag indicates which button is 
00068       // used.  In fact, pickInProgress = pick-button + 1. 
00069   int moveObj;                
00070   int currX, currY;           
00071   int oldX, oldY;             
00072   MouseButton buttonDown;     
00073  
00075   float transInc, rotInc, scaleInc;
00076 
00078   float xRotVel, yRotVel, zRotVel, scaling, RotVelScale;
00079 
00081   int rocking_enabled;
00082 
00084   int mouse_moved(void);
00085 
00087   int mouse_userpoint(void);
00088 
00090   void handle_winevent(long, long); 
00091   
00092 public:
00093   Mouse(VMDApp *);
00094   virtual ~Mouse(void);
00095   
00097   virtual void reset(void);
00098   
00100   int move_mode(MoveMode, int = 0);
00101  
00103   void stop_rotation(void);
00104 
00106   virtual int check_event(void);
00107 
00109   void set_rocking(int on);
00110 };
00111 
00112 
00116 class CmdMouseMode : public Command {
00117 public:
00119   CmdMouseMode(int mm, int ms)
00120   : Command(MOUSE_MODE), mouseMode(mm), mouseSetting(ms) {}
00121 
00123   int mouseMode, mouseSetting;
00124 };
00125 
00126 #endif
00127 

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