ctrls.hpp

一个嵌入式系统的C代码

//*************************************************************************
//  MODULE : Pb - Class definitions for Pb, Rb and Sys objects            *
//  AUTHOR : Ron Chernich                                                 *
//  PURPOSE: Definition of a MW Windows GUI-like graphic control gadgets. *
//  HISTORY:                                                              *
//   19-JAN-93  First (MSC/C++ 7.00) version (sans mouse support)         *
//   11-APR-93  Mouse activation code added				  *
//   19-OCT-93  Double click on close gadget added                        *
//   02-FEB-94  Refresh gadget chain function added for X convenience     *
//*************************************************************************

#ifndef _RCOS_CTRLS

  #include "btn.hpp"
  #include "gfx.hpp"
  #include "timer.hpp"
  #include "userip.hpp"


  #define CTLS_Centre       1     // Constants for control label placement
  #define CTLS_LJustify     2
  #define CTLS_RJustify     3

  #define RB_Radius         5     // Radio Button Indicator sizes
  #define RB_LedRad         3

  #define CB_Width         10     // Check Box Indicator sizes
  #define CB_Height        10

  #define SYS_Width        18     // Height for system menu and title bar
  #define SYS_Height	   18

  #define ID_CLOSE	 9000	  // System gadget identifiers
  #define ID_HELP	 9001  
  #define ID_REDRAW	 9002

  #define SYS_ClickDelay    2	  // TOD ticks to delay when graphic clicks
  #define SYS_DBLclick      3	  // Close gadget double click delay

  #define SYS_BarPatBkgnd   _Green	   // Title Bar Color Combos
  #define SYS_BarPatFgnd    _Blue	   // set to -1 for solid color
  #define SYS_TextColor     _BrightWhite   // will default to _Black


  /////////////////
  // Static support function prototypes used internally by these
  // classes which would gain nothing by being friends to them...
  //
  static void CtrlTxtLab (char*, rect&, UINT16, UINT16 = _Black);
  static void CtrlDelay  (UINT32 = SYS_ClickDelay);


  //////////////////////////////////////
  // This class defines a list of "Push Buttons", FIFO ordered by
  // button ID (no check made for duplicates).  Buttons are activated
  // ONE AT A TIME (no roll-over) by calling PbScan with either a Hot
  // Key character (an ALT-key scan code), or a graphic point.  A non
  // zero return indicates the ID of the defined button that has
  // acknowledged the "Click".
  //
  class PbCtrl : public Btn {
    void Render (btn*);
    void Toggle (btn*);
  public:
    UINT16 Scan (char);
    UINT16 Scan (point&);
    void   Refresh (void);
    BOOL   Create (UINT16, char*, INT16, INT16, INT16, INT16);
    BOOL   Destroy (UINT16);
  };

  ////////////////////////
  // This class defines a list of MUTUALLY EXCLUSIVE "Radio Buttons",
  // FIFO ordered.  A Button is set (returning its ID) when it acknowledges
  // its Hot Key character, or a point lying inside its bounding rectangle
  // which comprises the button and the label.  Setting a button causes
  // any other set button to be reset - cleared - turned off...
  //
  class RbCtrl : public Btn {
    BOOL bNoDefault;
    void Render (btn*);
    void Toggle (btn*);
  public:
    RbCtrl ();
    ~RbCtrl () { };
    UINT16 Scan (char);
    UINT16 Scan (point&);
    void   Refresh (void);
    BOOL   Create (UINT16, char*, INT16, INT16, BOOL = FALSE);
    BOOL   Destroy (UINT16);
  };

  ////////////////////////
  // This class defines a list of FIFO ordered "Check Boxes" - these act
  // like latching Push Buttons.  A Check Box is set (returning its ID)
  // when it acknowledges its Hot Key character, or a point lying inside
  // its bounding rectangle which comprises the Box and the label.  The
  // state (set/unset) of a particular Box may be queried.
  //
  class CbCtrl : public Btn {
    void Render (btn*);
    void Toggle (btn*);
  public:
    BOOL State (UINT16, BOOL&);
    UINT16 Scan (char);
    UINT16 Scan (point&);
    void   Refresh (void);
    BOOL   Create (UINT16, char*, INT16, INT16, BOOL = FALSE);
    BOOL   Destroy (UINT16);
  };

  ////////////////////////
  // And finally, this class defines a "System Menu" thing comprising a
  // list of FIFO ordered objects which do MS Windows menu-like things.
  // At this point, only the Title Bar and close gadget are implemented.
  //
  class SysMenu : public Btn {
    Str  stTitle;
    void RenderTB (void);
    void RenderCG (BOOL);
  public:
    SysMenu (char* = NULL, BOOL = TRUE);
    UINT16 Scan (char);
    UINT16 Scan (point&);
    void   Refresh (void);
    void   SysTitle (char*, rect&);
    BOOL   Create (UINT16, char*, char*, UINT16) { return FALSE; };
  };

  #define _RCOS_CTRLS
#endif

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