+/****************************************************************************
+ * Copyright (c) 2009 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. *
+ ****************************************************************************/
+/*
+ * $Id: test_add_wchstr.c,v 1.7 2009/09/13 00:00:28 tom Exp $
+ *
+ * Demonstrate the waddwchstr() and wadd_wch functions.
+ * Thomas Dickey - 2009/9/12
+ *
+ * Note: to provide inputs for *add_wch(), we use setcchar(). A quirk of the
+ * X/Open definition for that function is that the string contains no
+ * characters with negative width. Any control character (such as tab) falls
+ * into that category. So it follows that *add_wch() cannot render a tab
+ * character because there is no legal way to construct a cchar_t containing
+ * one. X/Open does not document this, and it would be logical to assume that
+ * *addwchstr() has the same limitation, but it uses a wchar_t string directly,
+ * and does not document how tabs are handled.
+ */
+
+#include <test.priv.h>
+
+#if USE_WIDEC_SUPPORT
+
+#define WIDE_LINEDATA
+#include <linedata.h>
+
+/* definitions to make it simpler to compare with test_addstr.c */
+#define AddNStr add_wchnstr
+#define AddStr add_wchstr
+#define MvAddNStr mvadd_wchnstr
+#define MvAddStr mvadd_wchstr
+#define MvWAddNStr mvwadd_wchnstr
+#define MvWAddStr mvwadd_wchstr
+#define WAddNStr wadd_wchnstr
+#define WAddStr wadd_wchstr
+
+#define MY_TABSIZE 8
+
+typedef enum {
+ oDefault = 0,
+ oMove = 1,
+ oWindow = 2,
+ oMoveWindow = 3
+} Options;
+
+static bool m_opt = FALSE;
+static bool w_opt = FALSE;
+static int n_opt = -1;
+
+static cchar_t *temp_buffer;
+static size_t temp_length;
+
+#define TempBuffer(source_len, source_cast) \
+ if (source != 0) { \
+ size_t need = source_len + 1; \
+ wchar_t have[2]; \
+ int n = 0; \
+ \
+ if (need > temp_length) { \
+ temp_length = need * 2; \
+ temp_buffer = typeRealloc(cchar_t, temp_length, temp_buffer); \
+ } \
+ have[0] = 0; \
+ have[1] = 0; \
+ do { \
+ have[0] = source_cast; \
+ setcchar(&temp_buffer[n++], have, A_NORMAL, 0, NULL); \
+ } while (have[0] != 0); \
+ } else if (temp_buffer != 0) { \
+ free(temp_buffer); \
+ temp_buffer = 0; \
+ temp_length = 0; \
+ } \
+ return temp_buffer;
+
+static cchar_t *
+ChStr(const char *source)
+{
+ TempBuffer(strlen(source), UChar(*source++));
+}
+
+static cchar_t *
+ChWStr(const wchar_t *source)
+{
+ TempBuffer(wcslen(source), *source++);
+}
+
+static void
+legend(WINDOW *win, int level, Options state, wchar_t *buffer, int length)
+{
+ NCURSES_CONST char *showstate;
+
+ switch (state) {
+ default:
+ case oDefault:
+ showstate = "";
+ break;
+ case oMove:
+ showstate = " (mvXXX)";
+ break;
+ case oWindow:
+ showstate = " (winXXX)";
+ break;
+ case oMoveWindow:
+ showstate = " (mvwinXXX)";
+ break;
+ }
+
+ wmove(win, 0, 0);
+ wprintw(win,
+ "The Strings/Chars displays should match. Enter any characters, except:\n");
+ wprintw(win,
+ "down-arrow or ^N to repeat on next line, 'w' for inner window, 'q' to exit.\n");
+ wclrtoeol(win);
+ wprintw(win, "Level %d,%s added %d characters <", level,
+ showstate, length);
+ waddwstr(win, buffer);
+ waddstr(win, ">");
+}
+
+static int
+ColOf(wchar_t *buffer, int length, int margin)
+{
+ int n;
+ int result;
+
+ for (n = 0, result = margin + 1; n < length; ++n) {
+ int ch = buffer[n];
+ switch (ch) {
+ case '\n':
+ /* actually newline should clear the remainder of the line
+ * and move to the next line - but that seems a little awkward
+ * in this example.
+ */
+ case '\r':
+ result = 0;
+ break;
+ case '\b':
+ if (result > 0)
+ --result;
+ break;
+ case '\t':
+ result += (MY_TABSIZE - (result % MY_TABSIZE));
+ break;
+ case '\177':
+ result += 2;
+ break;
+ default:
+ result += wcwidth(ch);
+ if (ch < 32)
+ ++result;
+ break;
+ }
+ }
+ return result;
+}
+
+static int
+ConvertCh(chtype source, cchar_t *target)
+{
+ wchar_t tmp_wchar[2];
+
+ tmp_wchar[0] = source;
+ tmp_wchar[1] = 0;
+ if (setcchar(target, tmp_wchar, A_NORMAL, 0, (void *) 0) == ERR) {
+ beep();
+ return FALSE;
+ }
+ return TRUE;
+}
+
+static int
+MvWAddCh(WINDOW *win, int y, int x, chtype ch)
+{
+ int code;
+ cchar_t tmp_cchar;
+
+ if (ConvertCh(ch, &tmp_cchar)) {
+ code = mvwadd_wch(win, y, x, &tmp_cchar);
+ } else {
+ code = mvwaddch(win, y, x, ch);
+ }
+ return code;
+}
+
+static int
+MvAddCh(int y, int x, chtype ch)
+{
+ int code;
+ cchar_t tmp_cchar;
+
+ if (ConvertCh(ch, &tmp_cchar)) {
+ code = mvadd_wch(y, x, &tmp_cchar);
+ } else {
+ code = mvaddch(y, x, ch);
+ }
+ return code;
+}
+
+static int
+WAddCh(WINDOW *win, chtype ch)
+{
+ int code;
+ cchar_t tmp_cchar;
+
+ if (ConvertCh(ch, &tmp_cchar)) {
+ code = wadd_wch(win, &tmp_cchar);
+ } else {
+ code = waddch(win, ch);
+ }
+ return code;
+}
+
+static int
+AddCh(chtype ch)
+{
+ int code;
+ cchar_t tmp_cchar;
+
+ if (ConvertCh(ch, &tmp_cchar)) {
+ code = add_wch(&tmp_cchar);
+ } else {
+ code = addch(ch);
+ }
+ return code;
+}
+
+#define LEN(n) ((length - (n) > n_opt) ? n_opt : (length - (n)))
+static void
+test_add_wchstr(int level)
+{
+ static bool first = TRUE;
+
+ int ch;
+ int limit;
+ int row = 1;
+ int col;
+ int row2, col2;
+ int length;
+ wchar_t buffer[BUFSIZ];
+ WINDOW *look = 0;
+ WINDOW *work = 0;
+ WINDOW *show = 0;
+ int margin = (2 * MY_TABSIZE) - 1;
+ Options option = ((m_opt ? oMove : oDefault)
+ | ((w_opt || (level > 0)) ? oWindow : oDefault));
+
+ if (first) {
+ static char cmd[80];
+ setlocale(LC_ALL, "");
+
+ putenv(strcpy(cmd, "TABSIZE=8"));
+
+ initscr();
+ (void) cbreak(); /* take input chars one at a time, no wait for \n */
+ (void) noecho(); /* don't echo input */
+ keypad(stdscr, TRUE);
+ }
+
+ limit = LINES - 5;
+ if (level > 0) {
+ look = newwin(limit, COLS - (2 * (level - 1)), 0, level - 1);
+ work = newwin(limit - 2, COLS - (2 * level), 1, level);
+ show = newwin(4, COLS, limit + 1, 0);
+ box(look, 0, 0);
+ wnoutrefresh(look);
+ limit -= 2;
+ } else {
+ work = stdscr;
+ show = derwin(stdscr, 4, COLS, limit + 1, 0);
+ }
+ keypad(work, TRUE);
+
+ for (col = margin + 1; col < COLS; col += MY_TABSIZE)
+ mvwvline(work, row, col, '.', limit - 2);
+
+ mvwvline(work, row, margin, ACS_VLINE, limit - 2);
+ mvwvline(work, row, margin + 1, ACS_VLINE, limit - 2);
+ limit /= 2;
+
+ mvwadd_wchstr(work, 1, 2, ChStr("String"));
+ mvwadd_wchstr(work, limit + 1, 2, ChStr("Chars"));
+ wnoutrefresh(work);
+
+ buffer[length = 0] = '\0';
+ legend(show, level, option, buffer, length);
+ wnoutrefresh(show);
+
+ doupdate();
+
+ /*
+ * Show the characters added in color, to distinguish from those that
+ * are shifted.
+ */
+ if (has_colors()) {
+ start_color();
+ init_pair(1, COLOR_WHITE, COLOR_BLUE);
+ wbkgdset(work, COLOR_PAIR(1) | ' ');
+ }
+
+ while ((ch = read_linedata(work)) != ERR && !isQUIT(ch)) {
+ wmove(work, row, margin + 1);
+ switch (ch) {
+ case key_RECUR:
+ test_add_wchstr(level + 1);
+
+ touchwin(look);
+ touchwin(work);
+ touchwin(show);
+
+ wnoutrefresh(look);
+ wnoutrefresh(work);
+ wnoutrefresh(show);
+
+ doupdate();
+ break;
+ case key_NEWLINE:
+ if (row < limit) {
+ ++row;
+ /* put the whole string in, all at once */
+ col2 = margin + 1;
+ switch (option) {
+ case oDefault:
+ if (n_opt > 1) {
+ for (col = 0; col < length; col += n_opt) {
+ col2 = ColOf(buffer, col, margin);
+ if (move(row, col2) != ERR) {
+ AddNStr(ChWStr(buffer + col), LEN(col));
+ }
+ }
+ } else {
+ if (move(row, col2) != ERR) {
+ AddStr(ChWStr(buffer));
+ }
+ }
+ break;
+ case oMove:
+ if (n_opt > 1) {
+ for (col = 0; col < length; col += n_opt) {
+ col2 = ColOf(buffer, col, margin);
+ MvAddNStr(row, col2, ChWStr(buffer + col), LEN(col));
+ }
+ } else {
+ MvAddStr(row, col2, ChWStr(buffer));
+ }
+ break;
+ case oWindow:
+ if (n_opt > 1) {
+ for (col = 0; col < length; col += n_opt) {
+ col2 = ColOf(buffer, col, margin);
+ if (wmove(work, row, col2) != ERR) {
+ WAddNStr(work, ChWStr(buffer + col), LEN(col));
+ }
+ }
+ } else {
+ if (wmove(work, row, col2) != ERR) {
+ WAddStr(work, ChWStr(buffer));
+ }
+ }
+ break;
+ case oMoveWindow:
+ if (n_opt > 1) {
+ for (col = 0; col < length; col += n_opt) {
+ col2 = ColOf(buffer, col, margin);
+ MvWAddNStr(work, row, col2, ChWStr(buffer +
+ col), LEN(col));
+ }
+ } else {
+ MvWAddStr(work, row, col2, ChWStr(buffer));
+ }
+ break;
+ }
+
+ /* do the corresponding single-character add */
+ row2 = limit + row;
+ for (col = 0; col < length; ++col) {
+ col2 = ColOf(buffer, col, margin);
+ switch (option) {
+ case oDefault:
+ if (move(row2, col2) != ERR) {
+ AddCh((chtype) buffer[col]);
+ }
+ break;
+ case oMove:
+ MvAddCh(row2, col2, (chtype) buffer[col]);
+ break;
+ case oWindow:
+ if (wmove(work, row2, col2) != ERR) {
+ WAddCh(work, (chtype) buffer[col]);
+ }
+ break;
+ case oMoveWindow:
+ MvWAddCh(work, row2, col2, (chtype) buffer[col]);
+ break;
+ }
+ }
+ } else {
+ beep();
+ }
+ break;
+ default:
+ buffer[length++] = ch;
+ buffer[length] = '\0';
+
+ /* put the string in, one character at a time */
+ col = ColOf(buffer, length - 1, margin);
+ switch (option) {
+ case oDefault:
+ if (move(row, col) != ERR) {
+ AddStr(ChWStr(buffer + length - 1));
+ }
+ break;
+ case oMove:
+ MvAddStr(row, col, ChWStr(buffer + length - 1));
+ break;
+ case oWindow:
+ if (wmove(work, row, col) != ERR) {
+ WAddStr(work, ChWStr(buffer + length - 1));
+ }
+ break;
+ case oMoveWindow:
+ MvWAddStr(work, row, col, ChWStr(buffer + length - 1));
+ break;
+ }
+
+ /* do the corresponding single-character add */
+ switch (option) {
+ case oDefault:
+ if (move(limit + row, col) != ERR) {
+ AddCh(ch);
+ }
+ break;
+ case oMove:
+ MvAddCh(limit + row, col, ch);
+ break;
+ case oWindow:
+ if (wmove(work, limit + row, col) != ERR) {
+ WAddCh(work, ch);
+ }
+ break;
+ case oMoveWindow:
+ MvWAddCh(work, limit + row, col, ch);
+ break;
+ }
+
+ wnoutrefresh(work);
+
+ legend(show, level, option, buffer, length);
+ wnoutrefresh(show);
+
+ doupdate();
+ break;
+ }
+ }
+ if (level > 0) {
+ delwin(show);
+ delwin(work);
+ delwin(look);
+ }
+}
+
+static void
+usage(void)
+{
+ static const char *tbl[] =
+ {
+ "Usage: test_add_wchstr [options]"
+ ,""
+ ,"Options:"
+ ," -f FILE read data from given file"
+ ," -n NUM limit string-adds to NUM bytes on ^N replay"
+ ," -m perform wmove/move separately from add-functions"
+ ," -w use window-parameter even when stdscr would be implied"
+ };
+ unsigned n;
+ for (n = 0; n < SIZEOF(tbl); ++n)
+ fprintf(stderr, "%s\n", tbl[n]);
+ ExitProgram(EXIT_FAILURE);
+}
+
+int
+main(int argc GCC_UNUSED, char *argv[]GCC_UNUSED)
+{
+ int ch;
+
+ setlocale(LC_ALL, "");
+
+ while ((ch = getopt(argc, argv, "f:mn:w")) != -1) {
+ switch (ch) {
+ case 'f':
+ init_linedata(optarg);
+ break;
+ case 'm':
+ m_opt = TRUE;
+ break;
+ case 'n':
+ n_opt = atoi(optarg);
+ if (n_opt == 0)
+ n_opt = -1;
+ break;
+ case 'w':
+ w_opt = TRUE;
+ break;
+ default:
+ usage();
+ break;
+ }
+ }
+ if (optind < argc)
+ usage();
+
+ test_add_wchstr(0);
+ endwin();
+ ExitProgram(EXIT_SUCCESS);
+}
+#else
+int
+main(void)
+{
+ printf("This program requires the wide-ncurses library\n");
+ ExitProgram(EXIT_FAILURE);
+}
+#endif
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