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Diffstat (limited to 'Build/source/utils/dialog/dialog-1.1-20110707/editbox.c')
-rw-r--r--Build/source/utils/dialog/dialog-1.1-20110707/editbox.c721
1 files changed, 721 insertions, 0 deletions
diff --git a/Build/source/utils/dialog/dialog-1.1-20110707/editbox.c b/Build/source/utils/dialog/dialog-1.1-20110707/editbox.c
new file mode 100644
index 00000000000..c7da10c7410
--- /dev/null
+++ b/Build/source/utils/dialog/dialog-1.1-20110707/editbox.c
@@ -0,0 +1,721 @@
+/*
+ * $Id: editbox.c,v 1.55 2011/06/21 00:10:46 tom Exp $
+ *
+ * editbox.c -- implements the edit box
+ *
+ * Copyright 2007-2010,2011 Thomas E. Dickey
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License, version 2.1
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not, write to
+ * Free Software Foundation, Inc.
+ * 51 Franklin St., Fifth Floor
+ * Boston, MA 02110, USA.
+ */
+
+#include <dialog.h>
+#include <dlg_keys.h>
+
+#include <sys/stat.h>
+
+#define sTEXT -1
+
+static void
+fail_list(void)
+{
+ dlg_exiterr("File too large");
+}
+
+static void
+grow_list(char ***list, int *have, int want)
+{
+ if (want > *have) {
+ size_t last = (size_t) *have;
+ size_t need = (size_t) (want | 31) + 3;
+ *have = (int) need;
+ (*list) = dlg_realloc(char *, need, *list);
+ if ((*list) == 0) {
+ fail_list();
+ }
+ while (++last < need) {
+ (*list)[last] = 0;
+ }
+ }
+}
+
+static void
+load_list(const char *file, char ***list, int *rows)
+{
+ FILE *fp;
+ char *blob = 0;
+ struct stat sb;
+ unsigned n, pass;
+ unsigned need;
+ size_t size;
+
+ *list = 0;
+ *rows = 0;
+
+ if (stat(file, &sb) < 0 ||
+ (sb.st_mode & S_IFMT) != S_IFREG)
+ dlg_exiterr("Not a file: %s", file);
+
+ size = (size_t) sb.st_size;
+ if ((blob = dlg_malloc(char, size + 1)) == 0)
+ fail_list();
+ blob[size] = '\0';
+
+ if ((fp = fopen(file, "r")) == 0)
+ dlg_exiterr("Cannot open: %s", file);
+ size = fread(blob, sizeof(char), size, fp);
+ fclose(fp);
+
+ for (pass = 0; pass < 2; ++pass) {
+ int first = TRUE;
+ need = 0;
+ for (n = 0; n < size; ++n) {
+ if (first && pass) {
+ (*list)[need] = blob + n;
+ first = FALSE;
+ }
+ if (blob[n] == '\n') {
+ first = TRUE;
+ ++need;
+ if (pass)
+ blob[n] = '\0';
+ }
+ }
+ if (pass) {
+ if (need == 0) {
+ (*list)[0] = dlg_strclone("");
+ (*list)[1] = 0;
+ } else {
+ for (n = 0; n < need; ++n) {
+ (*list)[n] = dlg_strclone((*list)[n]);
+ }
+ (*list)[need] = 0;
+ }
+ } else {
+ grow_list(list, rows, (int) need + 1);
+ }
+ }
+ free(blob);
+}
+
+static void
+free_list(char ***list, int *rows)
+{
+ if (*list != 0) {
+ int n;
+ for (n = 0; n < (*rows); ++n) {
+ if ((*list)[n] != 0)
+ free((*list)[n]);
+ }
+ free(*list);
+ *list = 0;
+ }
+ *rows = 0;
+}
+
+/*
+ * Display a single row in the editing window:
+ * thisrow is the actual row number that's being displayed.
+ * show_row is the row number that's highlighted for edit.
+ * base_row is the first row number in the window
+ */
+static bool
+display_one(WINDOW *win,
+ char *text,
+ int thisrow,
+ int show_row,
+ int base_row,
+ int chr_offset)
+{
+ bool result;
+
+ if (text != 0) {
+ dlg_show_string(win,
+ text,
+ chr_offset,
+ ((thisrow == show_row)
+ ? form_active_text_attr
+ : form_text_attr),
+ thisrow - base_row,
+ 0,
+ getmaxx(win),
+ FALSE,
+ FALSE);
+ result = TRUE;
+ } else {
+ result = FALSE;
+ }
+ return result;
+}
+
+static void
+display_all(WINDOW *win,
+ char **list,
+ int show_row,
+ int firstrow,
+ int lastrow,
+ int chr_offset)
+{
+ int limit = getmaxy(win);
+ int row;
+
+ dlg_attr_clear(win, getmaxy(win), getmaxx(win), dialog_attr);
+ if (lastrow - firstrow >= limit)
+ lastrow = firstrow + limit;
+ for (row = firstrow; row < lastrow; ++row) {
+ if (!display_one(win, list[row],
+ row, show_row, firstrow,
+ (row == show_row) ? chr_offset : 0))
+ break;
+ }
+}
+
+static int
+size_list(char **list)
+{
+ int result = 0;
+
+ if (list != 0) {
+ while (*list++ != 0) {
+ ++result;
+ }
+ }
+ return result;
+}
+
+static bool
+scroll_to(int pagesize, int rows, int *base_row, int *this_row, int target)
+{
+ bool result = FALSE;
+
+ if (target < *base_row) {
+ if (target < 0) {
+ if (*base_row == 0 && *this_row == 0) {
+ beep();
+ } else {
+ *this_row = 0;
+ *base_row = 0;
+ result = TRUE;
+ }
+ } else {
+ *this_row = target;
+ *base_row = target;
+ result = TRUE;
+ }
+ } else if (target >= rows) {
+ if (*this_row < rows - 1) {
+ *this_row = rows - 1;
+ *base_row = rows - 1;
+ result = TRUE;
+ } else {
+ beep();
+ }
+ } else if (target >= *base_row + pagesize) {
+ *this_row = target;
+ *base_row = target;
+ result = TRUE;
+ } else {
+ *this_row = target;
+ result = FALSE;
+ }
+ if (pagesize < rows) {
+ if (*base_row + pagesize >= rows) {
+ *base_row = rows - pagesize;
+ }
+ } else {
+ *base_row = 0;
+ }
+ return result;
+}
+
+static int
+col_to_chr_offset(const char *text, int col)
+{
+ const int *cols = dlg_index_columns(text);
+ const int *indx = dlg_index_wchars(text);
+ bool found = FALSE;
+ int result = 0;
+ unsigned n;
+ unsigned len = (unsigned) dlg_count_wchars(text);
+
+ for (n = 0; n < len; ++n) {
+ if (cols[n] <= col && cols[n + 1] > col) {
+ result = indx[n];
+ found = TRUE;
+ break;
+ }
+ }
+ if (!found && len && cols[len] == col) {
+ result = indx[len];
+ }
+ return result;
+}
+
+#define SCROLL_TO(target) show_all = scroll_to(pagesize, listsize, &base_row, &thisrow, target)
+
+#define PREV_ROW (*list)[thisrow - 1]
+#define THIS_ROW (*list)[thisrow]
+#define NEXT_ROW (*list)[thisrow + 1]
+
+#define UPDATE_COL(input) col_offset = dlg_edit_offset(input, chr_offset, box_width)
+
+static int
+widest_line(char **list)
+{
+ int result = MAX_LEN;
+ char *value;
+
+ if (list != 0) {
+ while ((value = *list++) != 0) {
+ int check = (int) strlen(value);
+ if (check > result)
+ result = check;
+ }
+ }
+ return result;
+}
+
+#define NAVIGATE_BINDINGS \
+ DLG_KEYS_DATA( DLGK_GRID_DOWN, KEY_DOWN ), \
+ DLG_KEYS_DATA( DLGK_GRID_RIGHT, KEY_RIGHT ), \
+ DLG_KEYS_DATA( DLGK_GRID_LEFT, KEY_LEFT ), \
+ DLG_KEYS_DATA( DLGK_GRID_UP, KEY_UP ), \
+ DLG_KEYS_DATA( DLGK_FIELD_NEXT, TAB ), \
+ DLG_KEYS_DATA( DLGK_FIELD_PREV, KEY_BTAB ), \
+ DLG_KEYS_DATA( DLGK_PAGE_FIRST, KEY_HOME ), \
+ DLG_KEYS_DATA( DLGK_PAGE_LAST, KEY_END ), \
+ DLG_KEYS_DATA( DLGK_PAGE_LAST, KEY_LL ), \
+ DLG_KEYS_DATA( DLGK_PAGE_NEXT, KEY_NPAGE ), \
+ DLG_KEYS_DATA( DLGK_PAGE_NEXT, DLGK_MOUSE(KEY_NPAGE) ), \
+ DLG_KEYS_DATA( DLGK_PAGE_PREV, KEY_PPAGE ), \
+ DLG_KEYS_DATA( DLGK_PAGE_PREV, DLGK_MOUSE(KEY_PPAGE) )
+/*
+ * Display a dialog box for editing a copy of a file
+ */
+int
+dlg_editbox(const char *title,
+ char ***list,
+ int *rows,
+ int height,
+ int width)
+{
+ /* *INDENT-OFF* */
+ static DLG_KEYS_BINDING binding[] = {
+ HELPKEY_BINDINGS,
+ ENTERKEY_BINDINGS,
+ NAVIGATE_BINDINGS,
+ END_KEYS_BINDING
+ };
+ static DLG_KEYS_BINDING binding2[] = {
+ INPUTSTR_BINDINGS,
+ HELPKEY_BINDINGS,
+ ENTERKEY_BINDINGS,
+ NAVIGATE_BINDINGS,
+ END_KEYS_BINDING
+ };
+ /* *INDENT-ON* */
+
+#ifdef KEY_RESIZE
+ int old_height = height;
+ int old_width = width;
+#endif
+ int x, y, box_y, box_x, box_height, box_width;
+ int show_buttons;
+ int thisrow, base_row, lastrow;
+ int goal_col = -1;
+ int col_offset = 0;
+ int chr_offset = 0;
+ int key, fkey, code;
+ int pagesize;
+ int listsize = size_list(*list);
+ int result = DLG_EXIT_UNKNOWN;
+ int state;
+ size_t max_len = (size_t) dlg_max_input(widest_line(*list));
+ char *input, *buffer;
+ bool show_all, show_one, was_mouse;
+ WINDOW *dialog;
+ WINDOW *editing;
+ DIALOG_VARS save_vars;
+ const char **buttons = dlg_ok_labels();
+ int mincols = (3 * COLS / 4);
+
+ dlg_save_vars(&save_vars);
+ dialog_vars.separate_output = TRUE;
+
+ dlg_does_output();
+
+ buffer = dlg_malloc(char, max_len + 1);
+ assert_ptr(buffer, "dlg_editbox");
+
+ thisrow = base_row = lastrow = 0;
+
+#ifdef KEY_RESIZE
+ retry:
+#endif
+ show_buttons = TRUE;
+ state = dialog_vars.defaultno ? dlg_defaultno_button() : sTEXT;
+ key = fkey = 0;
+
+ dlg_button_layout(buttons, &mincols);
+ dlg_auto_size(title, "", &height, &width, 3 * LINES / 4, mincols);
+ dlg_print_size(height, width);
+ dlg_ctl_size(height, width);
+
+ x = dlg_box_x_ordinate(width);
+ y = dlg_box_y_ordinate(height);
+
+ dialog = dlg_new_window(height, width, y, x);
+ dlg_register_window(dialog, "editbox", binding);
+ dlg_register_buttons(dialog, "editbox", buttons);
+
+ dlg_mouse_setbase(x, y);
+
+ dlg_draw_box(dialog, 0, 0, height, width, dialog_attr, border_attr);
+ dlg_draw_bottom_box(dialog);
+ dlg_draw_title(dialog, title);
+
+ wattrset(dialog, dialog_attr);
+
+ /* Draw the editing field in a box */
+ box_y = MARGIN + 0;
+ box_x = MARGIN + 1;
+ box_width = width - 2 - (2 * MARGIN);
+ box_height = height - (4 * MARGIN);
+
+ dlg_draw_box(dialog,
+ box_y,
+ box_x,
+ box_height,
+ box_width,
+ border_attr, dialog_attr);
+ dlg_mouse_mkbigregion(box_y + MARGIN,
+ box_x + MARGIN,
+ box_height - (2 * MARGIN),
+ box_width - (2 * MARGIN),
+ KEY_MAX, 1, 1, 3);
+ editing = dlg_sub_window(dialog,
+ box_height - (2 * MARGIN),
+ box_width - (2 * MARGIN),
+ getbegy(dialog) + box_y + 1,
+ getbegx(dialog) + box_x + 1);
+ dlg_register_window(editing, "editbox", binding2);
+
+ show_all = TRUE;
+ show_one = FALSE;
+ pagesize = getmaxy(editing);
+
+ while (result == DLG_EXIT_UNKNOWN) {
+ int edit = 0;
+
+ if (show_all) {
+ display_all(editing, *list, thisrow, base_row, listsize, chr_offset);
+ display_one(editing, THIS_ROW,
+ thisrow, thisrow, base_row, chr_offset);
+ show_all = FALSE;
+ show_one = TRUE;
+ } else {
+ if (thisrow != lastrow) {
+ display_one(editing, (*list)[lastrow],
+ lastrow, thisrow, base_row, 0);
+ show_one = TRUE;
+ }
+ }
+ if (show_one) {
+ display_one(editing, THIS_ROW,
+ thisrow, thisrow, base_row, chr_offset);
+ getyx(editing, y, x);
+ dlg_draw_scrollbar(dialog,
+ base_row,
+ base_row,
+ base_row + pagesize,
+ listsize,
+ box_x,
+ box_x + getmaxx(editing),
+ box_y + 0,
+ box_y + getmaxy(editing) + 1,
+ dialog_attr,
+ border_attr);
+ wmove(editing, y, x);
+ show_one = FALSE;
+ }
+ lastrow = thisrow;
+ input = THIS_ROW;
+
+ /*
+ * The last field drawn determines where the cursor is shown:
+ */
+ if (show_buttons) {
+ show_buttons = FALSE;
+ UPDATE_COL(input);
+ if (state != sTEXT) {
+ display_one(editing, input, thisrow,
+ -1, base_row, 0);
+ wrefresh(editing);
+ }
+ dlg_draw_buttons(dialog,
+ height - 2,
+ 0,
+ buttons,
+ (state != sTEXT) ? state : 99,
+ FALSE,
+ width);
+ if (state == sTEXT) {
+ display_one(editing, input, thisrow,
+ thisrow, base_row, chr_offset);
+ }
+ }
+
+ key = dlg_mouse_wgetch((state == sTEXT) ? editing : dialog, &fkey);
+ if (key == ERR) {
+ result = DLG_EXIT_ERROR;
+ break;
+ } else if (key == ESC) {
+ result = DLG_EXIT_ESC;
+ break;
+ }
+ if (state != sTEXT) {
+ if (dlg_result_key(key, fkey, &result))
+ break;
+ }
+
+ was_mouse = (fkey && is_DLGK_MOUSE(key));
+ if (was_mouse)
+ key -= M_EVENT;
+
+ /*
+ * Handle mouse clicks first, since we want to know if this is a
+ * button, or something that dlg_edit_string() should handle.
+ */
+ if (fkey
+ && was_mouse
+ && (code = dlg_ok_buttoncode(key)) >= 0) {
+ result = code;
+ continue;
+ }
+
+ if (was_mouse
+ && (key >= KEY_MAX)) {
+ int wide = getmaxx(editing);
+ int cell = key - KEY_MAX;
+ thisrow = (cell / wide) + base_row;
+ col_offset = (cell % wide);
+ chr_offset = col_to_chr_offset(THIS_ROW, col_offset);
+ show_one = TRUE;
+ if (state != sTEXT) {
+ state = sTEXT;
+ show_buttons = TRUE;
+ }
+ continue;
+ } else if (was_mouse && key >= KEY_MIN) {
+ key = dlg_lookup_key(dialog, key, &fkey);
+ }
+
+ if (state == sTEXT) { /* editing box selected */
+ /*
+ * Intercept scrolling keys that dlg_edit_string() does not
+ * understand.
+ */
+ if (fkey) {
+ bool moved = TRUE;
+
+ switch (key) {
+ case DLGK_GRID_UP:
+ SCROLL_TO(thisrow - 1);
+ break;
+ case DLGK_GRID_DOWN:
+ SCROLL_TO(thisrow + 1);
+ break;
+ case DLGK_PAGE_FIRST:
+ SCROLL_TO(0);
+ break;
+ case DLGK_PAGE_LAST:
+ SCROLL_TO(listsize);
+ break;
+ case DLGK_PAGE_NEXT:
+ SCROLL_TO(base_row + pagesize);
+ break;
+ case DLGK_PAGE_PREV:
+ if (thisrow > base_row) {
+ SCROLL_TO(base_row);
+ } else {
+ SCROLL_TO(base_row - pagesize);
+ }
+ break;
+ case DLGK_DELETE_LEFT:
+ if (chr_offset == 0) {
+ if (thisrow == 0) {
+ beep();
+ } else {
+ size_t len = (strlen(THIS_ROW) +
+ strlen(PREV_ROW) + 1);
+ char *tmp = dlg_malloc(char, len);
+
+ assert_ptr(tmp, "dlg_editbox");
+
+ chr_offset = dlg_count_wchars(PREV_ROW);
+ UPDATE_COL(PREV_ROW);
+ goal_col = col_offset;
+
+ sprintf(tmp, "%s%s", PREV_ROW, THIS_ROW);
+ if (len > max_len)
+ tmp[max_len] = '\0';
+
+ free(PREV_ROW);
+ PREV_ROW = tmp;
+ for (y = thisrow; y < listsize; ++y) {
+ (*list)[y] = (*list)[y + 1];
+ }
+ --listsize;
+ --thisrow;
+ SCROLL_TO(thisrow);
+
+ show_all = TRUE;
+ }
+ } else {
+ /* dlg_edit_string() can handle this case */
+ moved = FALSE;
+ }
+ break;
+ default:
+ moved = FALSE;
+ break;
+ }
+ if (moved) {
+ if (thisrow != lastrow) {
+ if (goal_col < 0)
+ goal_col = col_offset;
+ chr_offset = col_to_chr_offset(THIS_ROW, goal_col);
+ } else {
+ UPDATE_COL(THIS_ROW);
+ }
+ continue;
+ }
+ }
+ strncpy(buffer, input, max_len - 1)[max_len - 1] = '\0';
+ edit = dlg_edit_string(buffer, &chr_offset, key, fkey, FALSE);
+
+ if (edit) {
+ goal_col = UPDATE_COL(input);
+ if (strcmp(input, buffer)) {
+ free(input);
+ THIS_ROW = dlg_strclone(buffer);
+ input = THIS_ROW;
+ }
+ display_one(editing, input, thisrow,
+ thisrow, base_row, chr_offset);
+ continue;
+ }
+ }
+
+ /* handle non-functionkeys */
+ if (!fkey && (code = dlg_char_to_button(key, buttons)) >= 0) {
+ dlg_del_window(dialog);
+ result = dlg_ok_buttoncode(code);
+ continue;
+ }
+
+ /* handle functionkeys */
+ if (fkey) {
+ switch (key) {
+ case DLGK_FIELD_PREV:
+ show_buttons = TRUE;
+ state = dlg_prev_ok_buttonindex(state, sTEXT);
+ break;
+ case DLGK_FIELD_NEXT:
+ show_buttons = TRUE;
+ state = dlg_next_ok_buttonindex(state, sTEXT);
+ break;
+ case DLGK_ENTER:
+ if (state == sTEXT) {
+ const int *indx = dlg_index_wchars(THIS_ROW);
+ int split = indx[chr_offset];
+ char *tmp = dlg_strclone(THIS_ROW + split);
+
+ assert_ptr(tmp, "dlg_editbox");
+ grow_list(list, rows, listsize + 1);
+ ++listsize;
+ for (y = listsize; y > thisrow; --y) {
+ (*list)[y] = (*list)[y - 1];
+ }
+ THIS_ROW[split] = '\0';
+ ++thisrow;
+ chr_offset = 0;
+ col_offset = 0;
+ THIS_ROW = tmp;
+ SCROLL_TO(thisrow);
+ show_all = TRUE;
+ } else {
+ result = dlg_ok_buttoncode(state);
+ }
+ break;
+#ifdef KEY_RESIZE
+ case KEY_RESIZE:
+ /* reset data */
+ height = old_height;
+ width = old_width;
+ /* repaint */
+ dlg_clear();
+ dlg_del_window(editing);
+ dlg_del_window(dialog);
+ refresh();
+ dlg_mouse_free_regions();
+ goto retry;
+#endif
+ default:
+ beep();
+ break;
+ }
+ } else {
+ if ((key == ' ') && (state != sTEXT)) {
+ result = dlg_ok_buttoncode(state);
+ } else {
+ beep();
+ }
+ }
+ }
+
+ dlg_unregister_window(editing);
+ dlg_del_window(editing);
+ dlg_del_window(dialog);
+ dlg_mouse_free_regions();
+
+ /*
+ * The caller's copy of the (*list)[] array has been updated, but for
+ * consistency with the other widgets, we put the "real" result in
+ * the output buffer.
+ */
+ if (result == DLG_EXIT_OK) {
+ int n;
+ for (n = 0; n < listsize; ++n) {
+ dlg_add_result((*list)[n]);
+ dlg_add_separator();
+ }
+ }
+ free(buffer);
+ dlg_restore_vars(&save_vars);
+ return result;
+}
+
+int
+dialog_editbox(const char *title, const char *file, int height, int width)
+{
+ int result;
+ char **list;
+ int rows;
+
+ load_list(file, &list, &rows);
+ result = dlg_editbox(title, &list, &rows, height, width);
+ free_list(&list, &rows);
+ return result;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-19 02:27:31 +0000