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Diffstat (limited to 'ncurses-5.3/ncurses/base/resizeterm.c')
-rw-r--r--ncurses-5.3/ncurses/base/resizeterm.c288
1 files changed, 0 insertions, 288 deletions
diff --git a/ncurses-5.3/ncurses/base/resizeterm.c b/ncurses-5.3/ncurses/base/resizeterm.c
deleted file mode 100644
index 0d2f6a7..0000000
--- a/ncurses-5.3/ncurses/base/resizeterm.c
+++ /dev/null
@@ -1,288 +0,0 @@
-/****************************************************************************
- * Copyright (c) 1998-2001,2002 Free Software Foundation, Inc. *
- * *
- * Permission is hereby granted, free of charge, to any person obtaining a *
- * copy of this software and associated documentation files (the *
- * "Software"), to deal in the Software without restriction, including *
- * without limitation the rights to use, copy, modify, merge, publish, *
- * distribute, distribute with modifications, sublicense, and/or sell *
- * copies of the Software, and to permit persons to whom the Software is *
- * furnished to do so, subject to the following conditions: *
- * *
- * The above copyright notice and this permission notice shall be included *
- * in all copies or substantial portions of the Software. *
- * *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
- * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
- * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
- * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
- * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
- * *
- * Except as contained in this notice, the name(s) of the above copyright *
- * holders shall not be used in advertising or otherwise to promote the *
- * sale, use or other dealings in this Software without prior written *
- * authorization. *
- ****************************************************************************/
-
-/****************************************************************************
- * Author: Thomas E. Dickey *
- ****************************************************************************/
-
-/*
- * This is an extension to the curses library. It provides callers with a hook
- * into the NCURSES data to resize windows, primarily for use by programs
- * running in an X Window terminal (e.g., xterm). I abstracted this module
- * from my application library for NCURSES because it must be compiled with
- * the private data structures -- T.Dickey 1995/7/4.
- */
-
-#include <curses.priv.h>
-#include <term.h>
-
-MODULE_ID("$Id$")
-
-#define stolen_lines (screen_lines - SP->_lines_avail)
-
-NCURSES_EXPORT(bool)
-is_term_resized(int ToLines, int ToCols)
-{
- return (ToLines != screen_lines
- || ToCols != screen_columns);
-}
-
-/*
- * Return the number of levels of child-windows under the current window.
- */
-static int
-child_depth(WINDOW *cmp)
-{
- int depth = 0;
-
- if (cmp != 0) {
- WINDOWLIST *wp;
-
- for (wp = _nc_windows; wp != 0; wp = wp->next) {
- WINDOW *tst = &(wp->win);
- if (tst->_parent == cmp) {
- depth = 1 + child_depth(tst);
- break;
- }
- }
- }
- return depth;
-}
-
-/*
- * Return the number of levels of parent-windows above the current window.
- */
-static int
-parent_depth(WINDOW *cmp)
-{
- int depth = 0;
-
- if (cmp != 0) {
- WINDOW *tst;
- while ((tst = cmp->_parent) != 0) {
- ++depth;
- cmp = tst;
- }
- }
- return depth;
-}
-
-/*
- * FIXME: must adjust position so it's within the parent!
- */
-static int
-adjust_window(WINDOW *win, int ToLines, int ToCols, int stolen)
-{
- int result;
- int bottom = screen_lines + SP->_topstolen - stolen;
- int myLines = win->_maxy + 1;
- int myCols = win->_maxx + 1;
-
- T((T_CALLED("adjust_window(%p,%d,%d) currently %dx%d at %d,%d"),
- win, ToLines, ToCols,
- getmaxy(win), getmaxx(win),
- getbegy(win), getbegx(win)));
-
- if (win->_begy >= bottom) {
- win->_begy += (ToLines - screen_lines);
- } else {
- if (myLines == screen_lines - stolen
- && ToLines != screen_lines)
- myLines = ToLines - stolen;
- else if (myLines == screen_lines
- && ToLines != screen_lines)
- myLines = ToLines;
- }
-
- if (myLines > ToLines)
- myLines = ToLines;
-
- if (myCols > ToCols)
- myCols = ToCols;
-
- if (myLines == screen_lines
- && ToLines != screen_lines)
- myCols = ToLines;
-
- if (myCols == screen_columns
- && ToCols != screen_columns)
- myCols = ToCols;
-
- result = wresize(win, myLines, myCols);
- returnCode(result);
-}
-
-/*
- * If we're decreasing size, recursively search for windows that have no
- * children, decrease those to fit, then decrease the containing window, etc.
- */
-static int
-decrease_size(int ToLines, int ToCols, int stolen)
-{
- bool found;
- int depth = 0;
- WINDOWLIST *wp;
-
- T((T_CALLED("decrease_size(%d, %d)"), ToLines, ToCols));
-
- do {
- found = FALSE;
- TR(TRACE_UPDATE, ("decreasing size of windows to %dx%d, depth=%d",
- ToLines, ToCols, depth));
- for (wp = _nc_windows; wp != 0; wp = wp->next) {
- WINDOW *win = &(wp->win);
-
- if (!(win->_flags & _ISPAD)) {
- if (child_depth(win) == depth) {
- if (adjust_window(win, ToLines, ToCols, stolen) != OK)
- returnCode(ERR);
- }
- }
- }
- ++depth;
- } while (found);
- returnCode(OK);
-}
-
-/*
- * If we're increasing size, recursively search for windows that have no
- * parent, increase those to fit, then increase the contained window, etc.
- */
-static int
-increase_size(int ToLines, int ToCols, int stolen)
-{
- bool found;
- int depth = 0;
- WINDOWLIST *wp;
-
- T((T_CALLED("increase_size(%d, %d)"), ToLines, ToCols));
-
- do {
- found = FALSE;
- TR(TRACE_UPDATE, ("increasing size of windows to %dx%d, depth=%d",
- ToLines, ToCols, depth));
- for (wp = _nc_windows; wp != 0; wp = wp->next) {
- WINDOW *win = &(wp->win);
-
- if (!(win->_flags & _ISPAD)) {
- if (parent_depth(win) == depth) {
- if (adjust_window(win, ToLines, ToCols, stolen) != OK)
- returnCode(ERR);
- }
- }
- }
- ++depth;
- } while (found);
- returnCode(OK);
-}
-
-/*
- * This function reallocates NCURSES window structures, with no side-effects
- * such as ungetch().
- */
-NCURSES_EXPORT(int)
-resize_term(int ToLines, int ToCols)
-{
- int result = OK;
- int was_stolen = (screen_lines - SP->_lines_avail);
-
- T((T_CALLED("resize_term(%d,%d) old(%d,%d)"),
- ToLines, ToCols,
- screen_lines, screen_columns));
-
- if (is_term_resized(ToLines, ToCols)) {
- int myLines = screen_lines;
- int myCols = screen_columns;
-
- if (ToLines > screen_lines) {
- increase_size(myLines = ToLines, myCols, was_stolen);
- }
-
- if (ToCols > screen_columns) {
- increase_size(myLines, myCols = ToCols, was_stolen);
- }
-
- if (ToLines < myLines ||
- ToCols < myCols) {
- decrease_size(ToLines, ToCols, was_stolen);
- }
-
- screen_lines = lines = ToLines;
- screen_columns = columns = ToCols;
-
- SP->_lines_avail = lines - was_stolen;
-
- if (SP->oldhash) {
- FreeAndNull(SP->oldhash);
- }
- if (SP->newhash) {
- FreeAndNull(SP->newhash);
- }
- }
-
- /*
- * Always update LINES, to allow for call from lib_doupdate.c which
- * needs to have the count adjusted by the stolen (ripped off) lines.
- */
- LINES = ToLines - was_stolen;
- COLS = ToCols;
-
- returnCode(result);
-}
-
-/*
- * This function reallocates NCURSES window structures. It is invoked in
- * response to a SIGWINCH interrupt. Other user-defined windows may also need
- * to be reallocated.
- *
- * Because this performs memory allocation, it should not (in general) be
- * invoked directly from the signal handler.
- */
-NCURSES_EXPORT(int)
-resizeterm(int ToLines, int ToCols)
-{
- int result = OK;
-
- SP->_sig_winch = FALSE;
-
- T((T_CALLED("resizeterm(%d,%d) old(%d,%d)"),
- ToLines, ToCols,
- screen_lines, screen_columns));
-
- if (is_term_resized(ToLines, ToCols)) {
-
-#if USE_SIGWINCH
- ungetch(KEY_RESIZE); /* so application can know this */
- clearok(curscr, TRUE); /* screen contents are unknown */
-#endif
-
- result = resize_term(ToLines, ToCols);
- }
-
- returnCode(result);
-}
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