mirror of
https://github.com/Aigor44/ncursesw-morphos.git
synced 2024-12-21 07:39:06 +08:00
4f84dbbd02
+ add/use symbol NCURSES_PAIRS_T like NCURSES_COLOR_T, to illustrate which "short" types are for color pairs and which are color values. + fix build for s390x, by correcting field bit offsets in generated representation clauses when int=32 long=64 and endian=big, or at least on s390x (patch by Nicolas Boulenguez). + minor cleanup change to test/form_driver_w.c (patch by Gaute Hope).
470 lines
11 KiB
C++
470 lines
11 KiB
C++
// * this is for making emacs happy: -*-Mode: C++;-*-
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/****************************************************************************
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* Copyright (c) 2007-2012,2014 Free Software Foundation, Inc. *
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* *
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* Permission is hereby granted, free of charge, to any person obtaining a *
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* copy of this software and associated documentation files (the *
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* "Software"), to deal in the Software without restriction, including *
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* without limitation the rights to use, copy, modify, merge, publish, *
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* distribute, distribute with modifications, sublicense, and/or sell *
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* copies of the Software, and to permit persons to whom the Software is *
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* furnished to do so, subject to the following conditions: *
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* *
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* The above copyright notice and this permission notice shall be included *
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* in all copies or substantial portions of the Software. *
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* *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
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* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
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* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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* *
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* Except as contained in this notice, the name(s) of the above copyright *
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* holders shall not be used in advertising or otherwise to promote the *
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* sale, use or other dealings in this Software without prior written *
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* authorization. *
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****************************************************************************/
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/*
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* Authors:
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* Thomas E. Dickey
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* Juergen Pfeifer
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*
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* The NCursesWindow class was originally based on a file written by
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* Eric Newton, later modified by Ulrich Drepper and Anatoly Ivasyuk.
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* However, aside from the compatible interface definition, no trace
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* of the original code remains in this version: it consists only of
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* changes introduced since 1995.
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*/
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#include "internal.h"
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#include "cursesw.h"
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MODULE_ID("$Id: cursesw.cc,v 1.54 2014/02/01 22:10:42 tom Exp $")
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#define COLORS_NEED_INITIALIZATION -1
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#define COLORS_NOT_INITIALIZED 0
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#define COLORS_MONOCHROME 1
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#define COLORS_ARE_REALLY_THERE 2
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#define HaveColors() (colorInitialized == COLORS_ARE_REALLY_THERE)
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// declare static variables for the class
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long NCursesWindow::count = 0L;
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bool NCursesWindow::b_initialized = FALSE;
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int
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NCursesWindow::scanw(const char* fmt, ...)
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{
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int result = ERR;
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va_list args;
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va_start(args, fmt);
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result = ::vw_scanw (w, const_cast<NCURSES_CONST char *>(fmt), args);
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va_end(args);
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return result;
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}
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int
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NCursesWindow::scanw(int y, int x, const char* fmt, ...)
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{
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int result = ERR;
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if (::wmove(w, y, x) != ERR) {
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va_list args;
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va_start(args, fmt);
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result = ::vw_scanw (w, const_cast<NCURSES_CONST char *>(fmt), args);
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va_end(args);
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}
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return result;
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}
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int
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NCursesWindow::scanw(const char* fmt, va_list args)
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{
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int result = ERR;
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result = ::vw_scanw (w, const_cast<NCURSES_CONST char *>(fmt), args);
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return result;
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}
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int
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NCursesWindow::scanw(int y, int x, const char* fmt, va_list args)
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{
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int result = ERR;
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if (::wmove(w, y, x) != ERR) {
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result = ::vw_scanw (w, const_cast<NCURSES_CONST char *>(fmt), args);
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}
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return result;
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}
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int
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NCursesWindow::printw(const char * fmt, ...)
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{
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va_list args;
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va_start(args, fmt);
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int result = ::vw_printw(w, fmt, args);
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va_end(args);
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return result;
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}
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int
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NCursesWindow::printw(int y, int x, const char * fmt, ...)
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{
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va_list args;
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va_start(args, fmt);
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int result = ::wmove(w, y, x);
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if (result == OK) {
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result = ::vw_printw(w, fmt, args);
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}
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va_end(args);
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return result;
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}
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int
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NCursesWindow::printw(const char * fmt, va_list args)
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{
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int result = ::vw_printw(w, fmt, args);
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return result;
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}
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int
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NCursesWindow::printw(int y, int x, const char * fmt, va_list args)
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{
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int result = ::wmove(w, y, x);
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if (result == OK) {
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result = ::vw_printw(w, fmt, args);
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}
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return result;
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}
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void
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NCursesWindow::set_keyboard(void)
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{
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keypad(TRUE);
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meta(TRUE);
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}
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void
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NCursesWindow::err_handler(const char *msg) const THROWS(NCursesException)
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{
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THROW(new NCursesException(msg));
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}
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void
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NCursesWindow::initialize()
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{
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if (!b_initialized) {
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::initscr();
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b_initialized = TRUE;
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if (colorInitialized == COLORS_NEED_INITIALIZATION) {
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colorInitialized = COLORS_NOT_INITIALIZED;
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useColors();
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}
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::noecho();
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::cbreak();
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}
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}
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void
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NCursesWindow::constructing()
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{
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initialize();
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++count;
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}
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NCursesWindow::NCursesWindow()
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: w(0), alloced(FALSE), par(0), subwins(0), sib(0)
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{
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constructing();
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w = static_cast<WINDOW *>(0);
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}
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NCursesWindow::NCursesWindow(int nlines, int ncols, int begin_y, int begin_x)
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: w(0), alloced(TRUE), par(0), subwins(0), sib(0)
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{
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constructing();
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w = ::newwin(nlines, ncols, begin_y, begin_x);
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if (w == 0) {
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err_handler("Cannot construct window");
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}
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set_keyboard();
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}
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NCursesWindow::NCursesWindow(WINDOW* window)
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: w(0), alloced(FALSE), par(0), subwins(0), sib(0)
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{
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constructing();
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// We used to use a reference on the "window" parameter, but we cannot do
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// that with an opaque pointer (see NCURSES_OPAQUE). If the parameter was
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// "::stdscr", that is first set via the "constructing() call, and is null
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// up to that point. So we allow a null pointer here as meaning the "same"
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// as "::stdscr".
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w = window ? window : ::stdscr;
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set_keyboard();
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}
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NCursesWindow::NCursesWindow(NCursesWindow& win, int ny, int nx,
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int begin_y, int begin_x, char absrel)
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: w(0), alloced(TRUE), par(0), subwins(0), sib(0)
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{
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constructing();
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if (absrel == 'a') { // absolute origin
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begin_y -= win.begy();
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begin_x -= win.begx();
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}
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// Link this window into its parent's list of subwindows.
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// We use derwin(), since this also works for pads.
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w = ::derwin(win.w, ny, nx, begin_y, begin_x);
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if (w == 0) {
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err_handler("Cannot construct subwindow");
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}
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par = &win;
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sib = win.subwins;
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win.subwins = this;
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}
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NCursesWindow::NCursesWindow(NCursesWindow& win,
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bool do_box NCURSES_PARAM_INIT(TRUE))
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: w(0), alloced(TRUE), par(0), subwins(0), sib(0)
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{
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constructing();
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int myHeight = win.height();
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int myWidth = win.width();
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w = :: derwin(win.w, myHeight - 2, myWidth - 2, 1, 1);
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if (w == 0) {
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err_handler("Cannot construct subwindow");
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}
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par = &win;
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sib = win.subwins;
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win.subwins = this;
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subwins = 0;
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if (do_box) {
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win.box();
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win.touchwin();
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}
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}
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NCursesWindow NCursesWindow::Clone()
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{
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WINDOW *d = ::dupwin(w);
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NCursesWindow W(d);
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W.subwins = subwins;
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W.sib = sib;
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W.par = par;
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W.alloced = alloced;
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return W;
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}
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typedef int (*RIPOFFINIT)(NCursesWindow&);
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static RIPOFFINIT R_INIT[5]; // There can't be more
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static int r_init_idx = 0;
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static RIPOFFINIT* prip = R_INIT;
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NCursesWindow::NCursesWindow(WINDOW *win, int ncols)
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: w(0), alloced(FALSE), par(0), subwins(0), sib(0)
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{
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(void) ncols;
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initialize();
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w = win;
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}
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int _nc_xx_ripoff_init(WINDOW *w, int ncols)
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{
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(void) ncols;
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int res = ERR;
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RIPOFFINIT init = *prip++;
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if (init) {
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res = init(*(new NCursesWindow(w,ncols)));
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}
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return res;
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}
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int NCursesWindow::ripoffline(int ripoff_lines,
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int (*init)(NCursesWindow& win))
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{
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int code = ::_nc_ripoffline(ripoff_lines,_nc_xx_ripoff_init);
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if (code == OK && init && ripoff_lines) {
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R_INIT[r_init_idx++] = init;
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}
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return code;
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}
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bool
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NCursesWindow::isDescendant(NCursesWindow& win)
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{
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bool result = FALSE;
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for (NCursesWindow* p = subwins; p != NULL; p = p->sib) {
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if (p == &win || p->isDescendant(win)) {
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result = TRUE;
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break;
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}
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}
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return result;
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}
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void
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NCursesWindow::kill_subwindows()
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{
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NCursesWindow* p = subwins;
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subwins = 0;
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while (p != 0) {
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NCursesWindow* q = p->sib;
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p->kill_subwindows();
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if (p->alloced) {
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if (p->w != 0)
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::delwin(p->w);
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}
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delete p;
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p = q;
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}
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}
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NCursesWindow::~NCursesWindow()
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{
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kill_subwindows();
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if (par != 0) {
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// Remove this window from the parent's list of subwindows.
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NCursesWindow * next = par->subwins;
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NCursesWindow * prev = 0;
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while (next != 0) {
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if (next == this) {
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if (prev != 0) {
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prev->sib = next->sib;
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} else {
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par->subwins = next->sib;
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}
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break;
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}
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prev = next;
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next = next->sib;
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}
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}
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if (alloced && w != 0)
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::delwin(w);
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if (alloced) {
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--count;
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if (count == 0) {
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::endwin();
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} else if (count < 0) { // cannot happen!
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err_handler("Too many windows destroyed");
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}
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}
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}
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// ---------------------------------------------------------------------
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// Color stuff
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//
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int NCursesWindow::colorInitialized = COLORS_NOT_INITIALIZED;
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void
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NCursesWindow::useColors(void)
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{
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if (colorInitialized == COLORS_NOT_INITIALIZED) {
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if (b_initialized) {
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if (::has_colors()) {
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::start_color();
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colorInitialized = COLORS_ARE_REALLY_THERE;
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} else {
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colorInitialized = COLORS_MONOCHROME;
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}
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} else {
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colorInitialized = COLORS_NEED_INITIALIZATION;
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}
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}
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}
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NCURSES_PAIRS_T
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NCursesWindow::getPair() const
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{
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return static_cast<NCURSES_PAIRS_T>(PAIR_NUMBER(getattrs(w)));
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}
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NCURSES_COLOR_T
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NCursesWindow::getcolor(int getback) const
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{
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NCURSES_COLOR_T fore, back;
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if (HaveColors()) {
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if (::pair_content(getPair(), &fore, &back) == ERR)
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err_handler("Can't get color pair");
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} else {
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// Monochrome means white on black
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back = COLOR_BLACK;
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fore = COLOR_WHITE;
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}
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return getback ? back : fore;
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}
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int NCursesWindow::NumberOfColors()
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{
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return (HaveColors()) ? COLORS : 1;
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}
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NCURSES_PAIRS_T
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NCursesWindow::getcolor() const
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{
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return (HaveColors()) ? getPair() : 0;
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}
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int
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NCursesWindow::setpalette(NCURSES_COLOR_T fore, NCURSES_COLOR_T back, NCURSES_PAIRS_T pair)
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{
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return (HaveColors()) ? ::init_pair(pair, fore, back) : OK;
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}
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int
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NCursesWindow::setpalette(NCURSES_COLOR_T fore, NCURSES_COLOR_T back)
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{
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return setpalette(fore, back, getPair());
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}
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int
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NCursesWindow::setcolor(NCURSES_PAIRS_T pair)
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{
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if (HaveColors()) {
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if ((pair < 1) || (pair > COLOR_PAIRS))
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err_handler("Can't set color pair");
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attroff(A_COLOR);
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attrset(COLOR_PAIR(pair));
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}
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return OK;
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}
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#if HAVE_HAS_KEY
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bool NCursesWindow::has_mouse() const
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{
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return ((::has_key(KEY_MOUSE) || ::has_mouse())
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? TRUE : FALSE);
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}
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#endif
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