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authorRong-En Fan <rafan@FreeBSD.org>2008-11-09 09:06:04 +0000
committerRong-En Fan <rafan@FreeBSD.org>2008-11-09 09:06:04 +0000
commita388f199193767bacbb38b172ab89cb84369736c (patch)
treea1816f5667d2280b970ca44e407bac8cc4496c0a /contrib/ncurses/ncurses/base/resizeterm.c
parentaa59d4d4c5dda7e1c6f9dc0cc6edc58992a525c7 (diff)
downloadsrc-a388f199193767bacbb38b172ab89cb84369736c.tar.gz
src-a388f199193767bacbb38b172ab89cb84369736c.zip
- Flatten the vendor area
Notes
Notes: svn path=/vendor/ncurses/dist/; revision=184786
Diffstat (limited to 'contrib/ncurses/ncurses/base/resizeterm.c')
-rw-r--r--contrib/ncurses/ncurses/base/resizeterm.c455
1 files changed, 0 insertions, 455 deletions
diff --git a/contrib/ncurses/ncurses/base/resizeterm.c b/contrib/ncurses/ncurses/base/resizeterm.c
deleted file mode 100644
index cf2c998e239f..000000000000
--- a/contrib/ncurses/ncurses/base/resizeterm.c
+++ /dev/null
@@ -1,455 +0,0 @@
-/****************************************************************************
- * Copyright (c) 1998-2007,2008 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: resizeterm.c,v 1.32 2008/05/03 14:28:55 tom Exp $")
-
-#define stolen_lines (screen_lines - SP->_lines_avail)
-
-/*
- * If we're trying to be reentrant, do not want any local statics.
- */
-#if USE_REENTRANT
-#define EXTRA_ARGS , CurLines, CurCols
-#define EXTRA_DCLS , int CurLines, int CurCols
-#else
-static int current_lines;
-static int current_cols;
-#define CurLines current_lines
-#define CurCols current_cols
-#define EXTRA_ARGS /* nothing */
-#define EXTRA_DCLS /* nothing */
-#endif
-
-#ifdef TRACE
-static void
-show_window_sizes(const char *name)
-{
- WINDOWLIST *wp;
-
- _nc_lock_global(windowlist);
- _tracef("%s resizing: %2d x %2d (%2d x %2d)", name, LINES, COLS,
- screen_lines, screen_columns);
- for (each_window(wp)) {
- _tracef(" window %p is %2ld x %2ld at %2ld,%2ld",
- &(wp->win),
- (long) wp->win._maxy + 1,
- (long) wp->win._maxx + 1,
- (long) wp->win._begy,
- (long) wp->win._begx);
- }
- _nc_unlock_global(windowlist);
-}
-#endif
-
-/*
- * Return true if the given dimensions do not match the internal terminal
- * structure's size.
- */
-NCURSES_EXPORT(bool)
-is_term_resized(int ToLines, int ToCols)
-{
- T((T_CALLED("is_term_resized(%d, %d)"), ToLines, ToCols));
- returnCode(ToLines > 0
- && ToCols > 0
- && (ToLines != screen_lines
- || ToCols != screen_columns));
-}
-
-/*
- */
-static ripoff_t *
-ripped_window(WINDOW *win)
-{
- ripoff_t *result = 0;
- ripoff_t *rop;
-
- if (win != 0) {
- for (each_ripoff(rop)) {
- if (rop->win == win && rop->line != 0) {
- result = rop;
- break;
- }
- }
- }
- return result;
-}
-
-/*
- * Returns the number of lines from the bottom for the beginning of a ripped
- * off window.
- */
-static int
-ripped_bottom(WINDOW *win)
-{
- int result = 0;
- ripoff_t *rop;
-
- if (win != 0) {
- for (each_ripoff(rop)) {
- if (rop->line < 0) {
- result -= rop->line;
- if (rop->win == win) {
- break;
- }
- }
- }
- }
- return result;
-}
-
-/*
- * 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 (each_window(wp)) {
- 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 EXTRA_DCLS)
-{
- int result;
- int bottom = CurLines + SP->_topstolen - stolen;
- int myLines = win->_maxy + 1;
- int myCols = win->_maxx + 1;
- ripoff_t *rop = ripped_window(win);
-
- T((T_CALLED("adjust_window(%p,%d,%d)%s depth %d/%d currently %ldx%ld at %ld,%ld"),
- win, ToLines, ToCols,
- (rop != 0) ? " (rip)" : "",
- parent_depth(win),
- child_depth(win),
- (long) getmaxy(win), (long) getmaxx(win),
- (long) getbegy(win) + win->_yoffset, (long) getbegx(win)));
-
- if (rop != 0 && rop->line < 0) {
- /*
- * If it is a ripped-off window at the bottom of the screen, simply
- * move it to the same relative position.
- */
- win->_begy = ToLines - ripped_bottom(win) - 0 - win->_yoffset;
- } else if (win->_begy >= bottom) {
- /*
- * If it is below the bottom of the new screen, move up by the same
- * amount that the screen shrank.
- */
- win->_begy += (ToLines - CurLines);
- } else {
- if (myLines == (CurLines - stolen)
- && ToLines != CurLines) {
- myLines = ToLines - stolen;
- } else if (myLines == CurLines
- && ToLines != CurLines) {
- myLines = ToLines;
- }
- }
-
- if (myLines > ToLines) {
- myLines = ToLines;
- }
-
- if (myCols > ToCols)
- myCols = ToCols;
-
- if (myCols == CurCols
- && ToCols != CurCols)
- 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 EXTRA_DCLS)
-{
- 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 (each_window(wp)) {
- WINDOW *win = &(wp->win);
-
- if (!(win->_flags & _ISPAD)) {
- if (child_depth(win) == depth) {
- found = TRUE;
- if (adjust_window(win, ToLines, ToCols,
- stolen EXTRA_ARGS) != 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 EXTRA_DCLS)
-{
- 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 (each_window(wp)) {
- WINDOW *win = &(wp->win);
-
- if (!(win->_flags & _ISPAD)) {
- if (parent_depth(win) == depth) {
- found = TRUE;
- if (adjust_window(win, ToLines, ToCols,
- stolen EXTRA_ARGS) != 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 EXTRA_ARGS;
- int was_stolen;
-
- T((T_CALLED("resize_term(%d,%d) old(%d,%d)"),
- ToLines, ToCols,
- screen_lines, screen_columns));
-
- if (SP == 0) {
- returnCode(ERR);
- }
-
- _nc_lock_global(windowlist);
-
- was_stolen = (screen_lines - SP->_lines_avail);
- if (is_term_resized(ToLines, ToCols)) {
- int myLines = CurLines = screen_lines;
- int myCols = CurCols = screen_columns;
-
-#ifdef TRACE
- if (USE_TRACEF(TRACE_UPDATE)) {
- show_window_sizes("before");
- _nc_unlock_global(tracef);
- }
-#endif
- if (ToLines > screen_lines) {
- increase_size(myLines = ToLines, myCols, was_stolen EXTRA_ARGS);
- CurLines = myLines;
- CurCols = myCols;
- }
-
- if (ToCols > screen_columns) {
- increase_size(myLines, myCols = ToCols, was_stolen EXTRA_ARGS);
- CurLines = myLines;
- CurCols = myCols;
- }
-
- if (ToLines < myLines ||
- ToCols < myCols) {
- decrease_size(ToLines, ToCols, was_stolen EXTRA_ARGS);
- }
-
- 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);
- }
-#ifdef TRACE
- if (USE_TRACEF(TRACE_UPDATE)) {
- SET_LINES(ToLines - was_stolen);
- SET_COLS(ToCols);
- show_window_sizes("after");
- _nc_unlock_global(tracef);
- }
-#endif
- }
-
- /*
- * Always update LINES, to allow for call from lib_doupdate.c which
- * needs to have the count adjusted by the stolen (ripped off) lines.
- */
- SET_LINES(ToLines - was_stolen);
- SET_COLS(ToCols);
-
- _nc_unlock_global(windowlist);
-
- 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 = ERR;
-
- T((T_CALLED("resizeterm(%d,%d) old(%d,%d)"),
- ToLines, ToCols,
- screen_lines, screen_columns));
-
- if (SP != 0) {
- result = OK;
- SP->_sig_winch = FALSE;
-
- if (is_term_resized(ToLines, ToCols)) {
-#if USE_SIGWINCH
- ripoff_t *rop;
- bool slk_visible = (SP != 0
- && SP->_slk != 0
- && !(SP->_slk->hidden));
-
- if (slk_visible) {
- slk_clear();
- }
-#endif
- result = resize_term(ToLines, ToCols);
-
-#if USE_SIGWINCH
- ungetch(KEY_RESIZE); /* so application can know this */
- clearok(curscr, TRUE); /* screen contents are unknown */
-
- /* ripped-off lines are a special case: if we did not lengthen
- * them, we haven't moved them either. repaint them, too.
- *
- * for the rest - stdscr and other windows - the client has to
- * decide which to repaint, since without panels, ncurses does
- * not know which are really on top.
- */
- for (each_ripoff(rop)) {
- if (rop->win != stdscr
- && rop->win != 0
- && rop->line < 0) {
-
- if (rop->hook != _nc_slk_initialize) {
- touchwin(rop->win);
- wnoutrefresh(rop->win);
- }
- }
- }
-
- /* soft-keys are a special case: we _know_ how to repaint them */
- if (slk_visible) {
- slk_restore();
- slk_touch();
-
- slk_refresh();
- }
-#endif
- }
- }
-
- returnCode(result);
-}