contrib/ncurses-5.4/c++/cursesapp.cc

   1 // * this is for making emacs happy: -*-Mode: C++;-*-
   2 /****************************************************************************
   3  * Copyright (c) 1998-2002,2003 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               *
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  19  * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
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  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 #include "internal.h"
  35 #include "cursesapp.h"
  36
  37 MODULE_ID("$Id: cursesapp.cc,v 1.10 2003/10/25 15:04:46 tom Exp $")
  38
  39 void
  40 NCursesApplication::init(bool bColors) {
  41   if (bColors)
  42     NCursesWindow::useColors();
  43
  44   if (Root_Window->colors() > 1) {
  45     b_Colors = TRUE;
  46     Root_Window->setcolor(1);
  47     Root_Window->setpalette(COLOR_YELLOW,COLOR_BLUE);
  48     Root_Window->setcolor(2);
  49     Root_Window->setpalette(COLOR_CYAN,COLOR_BLUE);
  50     Root_Window->setcolor(3);
  51     Root_Window->setpalette(COLOR_BLACK,COLOR_BLUE);
  52     Root_Window->setcolor(4);
  53     Root_Window->setpalette(COLOR_BLACK,COLOR_CYAN);
  54     Root_Window->setcolor(5);
  55     Root_Window->setpalette(COLOR_BLUE,COLOR_YELLOW);
  56     Root_Window->setcolor(6);
  57     Root_Window->setpalette(COLOR_BLACK,COLOR_GREEN);
  58   }
  59   else
  60     b_Colors = FALSE;
  61
  62   Root_Window->bkgd(' '|window_backgrounds());
  63 }
  64
  65 NCursesApplication* NCursesApplication::theApp = 0;
  66 NCursesWindow* NCursesApplication::titleWindow = 0;
  67 NCursesApplication::SLK_Link* NCursesApplication::slk_stack = 0;
  68
  69 NCursesApplication::~NCursesApplication() {
  70   Soft_Label_Key_Set* S;
  71
  72   delete titleWindow;
  73   while( (S=top()) ) {
  74     pop();
  75     delete S;
  76   }
  77   delete Root_Window;
  78   ::endwin();
  79 }
  80
  81 int NCursesApplication::rinit(NCursesWindow& w) {
  82   titleWindow = &w;
  83   return OK;
  84 }
  85
  86 void NCursesApplication::push(Soft_Label_Key_Set& S) {
  87   SLK_Link* L = new SLK_Link;
  88   assert(L != 0);
  89   L->prev = slk_stack;
  90   L->SLKs = &S;
  91   slk_stack = L;
  92   if (Root_Window)
  93     S.show();
  94 }
  95
  96 bool NCursesApplication::pop() {
  97   if (slk_stack) {
  98     SLK_Link* L = slk_stack;
  99     slk_stack = slk_stack->prev;
 100     delete L;
 101     if (Root_Window && top())
 102       top()->show();
 103   }
 104   return (slk_stack ? FALSE : TRUE);
 105 }
 106
 107 Soft_Label_Key_Set* NCursesApplication::top() const {
 108   if (slk_stack)
 109     return slk_stack->SLKs;
 110   else
 111     return (Soft_Label_Key_Set*)0;
 112 }
 113
 114 int NCursesApplication::operator()(void) {
 115   bool bColors = b_Colors;
 116   Soft_Label_Key_Set* S;
 117
 118   int ts = titlesize();
 119   if (ts>0)
 120     NCursesWindow::ripoffline(ts,rinit);
 121   Soft_Label_Key_Set::Label_Layout fmt = useSLKs();
 122   if (fmt!=Soft_Label_Key_Set::None) {
 123     S = new Soft_Label_Key_Set(fmt);
 124     assert(S != 0);
 125     init_labels(*S);
 126   }
 127
 128   Root_Window = new NCursesWindow(::stdscr);
 129   init(bColors);
 130
 131   if (ts>0)
 132     title();
 133   if (fmt!=Soft_Label_Key_Set::None) {
 134     push(*S);
 135   }
 136
 137   return run();
 138 }
 139
 140 NCursesApplication::NCursesApplication(bool bColors) {
 141   b_Colors = bColors;
 142   if (theApp)
 143     THROW(new NCursesException("Application object already created."));
 144   else
 145     theApp = this;
 146 }