release/src/router/libncurses/c++/cursesapp.h

   1 // * This makes emacs happy -*-Mode: C++;-*-
   2 /****************************************************************************
   3  * Copyright (c) 1998-2005,2011 Free Software Foundation, Inc.              *
   4  *                                                                          *
   5  * Permission is hereby granted, free of charge, to any person obtaining a  *
   6  * copy of this software and associated documentation files (the            *
   7  * "Software"), to deal in the Software without restriction, including      *
   8  * without limitation the rights to use, copy, modify, merge, publish,      *
   9  * distribute, distribute with modifications, sublicense, and/or sell       *
  10  * copies of the Software, and to permit persons to whom the Software is    *
  11  * furnished to do so, subject to the following conditions:                 *
  12  *                                                                          *
  13  * The above copyright notice and this permission notice shall be included  *
  14  * in all copies or substantial portions of the Software.                   *
  15  *                                                                          *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
  17  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
  18  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
  19  * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
  20  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
  21  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
  22  * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
  23  *                                                                          *
  24  * Except as contained in this notice, the name(s) of the above copyright   *
  25  * holders shall not be used in advertising or otherwise to promote the     *
  26  * sale, use or other dealings in this Software without prior written       *
  27  * authorization.                                                           *
  28  ****************************************************************************/
  29
  30 /****************************************************************************
  31  *   Author: Juergen Pfeifer, 1997                                          *
  32  ****************************************************************************/
  33
  34 // $Id: cursesapp.h,v 1.12 2011/09/17 22:12:10 tom Exp $
  35
  36 #ifndef NCURSES_CURSESAPP_H_incl
  37 #define NCURSES_CURSESAPP_H_incl
  38
  39 #include <cursslk.h>
  40
  41 class NCURSES_IMPEXP NCursesApplication {
  42 public:
  43   typedef struct _slk_link {          // This structure is used to maintain
  44     struct _slk_link* prev;           // a stack of SLKs
  45     Soft_Label_Key_Set* SLKs;
  46   } SLK_Link;
  47 private:
  48   static int rinit(NCursesWindow& w); // Internal Init function for title
  49   static NCursesApplication* theApp;  // Global ref. to the application
  50
  51   static SLK_Link* slk_stack;
  52
  53 protected:
  54   static NCursesWindow* titleWindow;  // The Title Window (if any)
  55
  56   bool b_Colors;                      // Is this a color application?
  57   NCursesWindow* Root_Window;         // This is the stdscr equiv.
  58
  59   // Initialization of attributes;
  60   // Rewrite this in your derived class if you prefer other settings
  61   virtual void init(bool bColors);
  62
  63   // The number of lines for the title window. Default is no title window
  64   // You may rewrite this in your derived class
  65   virtual int titlesize() const {
  66     return 0;
  67   }
  68
  69   // This method is called to put something into the title window initially
  70   // You may rewrite this in your derived class
  71   virtual void title() {
  72   }
  73
  74   // The layout used for the Soft Label Keys. Default is to have no SLKs.
  75   // You may rewrite this in your derived class
  76   virtual Soft_Label_Key_Set::Label_Layout useSLKs() const {
  77     return Soft_Label_Key_Set::None;
  78   }
  79
  80   // This method is called to initialize the SLKs. Default is nothing.
  81   // You may rewrite this in your derived class
  82   virtual void init_labels(Soft_Label_Key_Set& S) const {
  83     (void) S;
  84   }
  85
  86   // Your derived class must implement this method. The return value must
  87   // be the exit value of your application.
  88   virtual int run() = 0;
  89
  90   // The constructor is protected, so you may use it in your derived
  91   // class constructor. The argument tells whether or not you want colors.
  92   NCursesApplication(bool wantColors = FALSE);
  93
  94   NCursesApplication& operator=(const NCursesApplication& rhs)
  95   {
  96     if (this != &rhs) {
  97       *this = rhs;
  98     }
  99     return *this;
 100   }
 101
 102   NCursesApplication(const NCursesApplication& rhs)
 103     : b_Colors(rhs.b_Colors),
 104       Root_Window(rhs.Root_Window)
 105   {
 106   }
 107
 108 public:
 109   virtual ~NCursesApplication();
 110
 111   // Get a pointer to the current application object
 112   static NCursesApplication* getApplication() {
 113     return theApp;
 114   }
 115
 116   // This method runs the application and returns its exit value
 117   int operator()(void);
 118
 119   // Process the commandline arguments. The default implementation simply
 120   // ignores them. Your derived class may rewrite this.
 121   virtual void handleArgs(int argc, char* argv[]) {
 122     (void) argc;
 123     (void) argv;
 124   }
 125
 126   // Does this application use colors?
 127   inline bool useColors() const {
 128     return b_Colors;
 129   }
 130
 131   // Push the Key Set S onto the SLK Stack. S then becomes the current set
 132   // of Soft Labelled Keys.
 133   void push(Soft_Label_Key_Set& S);
 134
 135   // Throw away the current set of SLKs and make the previous one the
 136   // new current set.
 137   bool pop();
 138
 139   // Retrieve the current set of Soft Labelled Keys.
 140   Soft_Label_Key_Set* top() const;
 141
 142   // Attributes to use for menu and forms foregrounds
 143   virtual chtype foregrounds() const {
 144     return b_Colors ? static_cast<chtype>(COLOR_PAIR(1)) : A_BOLD;
 145   }
 146
 147   // Attributes to use for menu and forms backgrounds
 148   virtual chtype backgrounds() const {
 149     return b_Colors ? static_cast<chtype>(COLOR_PAIR(2)) : A_NORMAL;
 150   }
 151
 152   // Attributes to use for inactive (menu) elements
 153   virtual chtype inactives() const {
 154     return b_Colors ? static_cast<chtype>(COLOR_PAIR(3)|A_DIM) : A_DIM;
 155   }
 156
 157   // Attributes to use for (form) labels and SLKs
 158   virtual chtype labels() const {
 159     return b_Colors ? static_cast<chtype>(COLOR_PAIR(4)) : A_NORMAL;
 160   }
 161
 162   // Attributes to use for form backgrounds
 163   virtual chtype dialog_backgrounds() const {
 164     return b_Colors ? static_cast<chtype>(COLOR_PAIR(4)) : A_NORMAL;
 165   }
 166
 167   // Attributes to use as default for (form) window backgrounds
 168   virtual chtype window_backgrounds() const {
 169     return b_Colors ? static_cast<chtype>(COLOR_PAIR(5)) : A_NORMAL;
 170   }
 171
 172   // Attributes to use for the title window
 173   virtual chtype screen_titles() const {
 174     return b_Colors ? static_cast<chtype>(COLOR_PAIR(6)) : A_BOLD;
 175   }
 176
 177 };
 178
 179 #endif /* NCURSES_CURSESAPP_H_incl */