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-rw-r--r--Build/source/utils/dialog/dialog-1.1-20110118/buttons.c648
1 files changed, 648 insertions, 0 deletions
diff --git a/Build/source/utils/dialog/dialog-1.1-20110118/buttons.c b/Build/source/utils/dialog/dialog-1.1-20110118/buttons.c
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index 00000000000..d82c4558d7c
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+++ b/Build/source/utils/dialog/dialog-1.1-20110118/buttons.c
@@ -0,0 +1,648 @@
+/*
+ * $Id: buttons.c,v 1.84 2011/01/19 00:27:53 tom Exp $
+ *
+ * buttons.c -- draw buttons, e.g., OK/Cancel
+ *
+ * Copyright 2000-2010,2011 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
+ * as published by the Free Software Foundation.
+ *
+ * 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>
+
+#ifdef NEED_WCHAR_H
+#include <wchar.h>
+#endif
+
+#define MIN_BUTTON (dialog_state.visit_items ? -1 : 0)
+
+static void
+center_label(char *buffer, int longest, const char *label)
+{
+ int len = dlg_count_columns(label);
+ int left = 0, right = 0;
+
+ *buffer = 0;
+ if (len < longest) {
+ left = (longest - len) / 2;
+ right = (longest - len - left);
+ if (left > 0)
+ sprintf(buffer, "%*s", left, " ");
+ }
+ strcat(buffer, label);
+ if (right > 0)
+ sprintf(buffer + strlen(buffer), "%*s", right, " ");
+}
+
+/*
+ * Parse a multibyte character out of the string, set it past the parsed
+ * character.
+ */
+static int
+string_to_char(const char **stringp)
+{
+ int result;
+#ifdef USE_WIDE_CURSES
+ const char *string = *stringp;
+ size_t have = strlen(string);
+ size_t check;
+ size_t len;
+ wchar_t cmp2[2];
+ mbstate_t state;
+
+ memset(&state, 0, sizeof(state));
+ len = mbrlen(string, have, &state);
+ if ((int) len > 0 && len <= have) {
+ memset(&state, 0, sizeof(state));
+ memset(cmp2, 0, sizeof(cmp2));
+ check = mbrtowc(cmp2, string, len, &state);
+ if ((int) check <= 0)
+ cmp2[0] = 0;
+ *stringp += len;
+ } else {
+ cmp2[0] = UCH(*string);
+ *stringp += 1;
+ }
+ result = cmp2[0];
+#else
+ const char *string = *stringp;
+ result = UCH(*string);
+ *stringp += 1;
+#endif
+ return result;
+}
+
+/*
+ * Print a button
+ */
+static void
+print_button(WINDOW *win, char *label, int y, int x, int selected)
+{
+ int i;
+ int state = 0;
+ const int *indx = dlg_index_wchars(label);
+ int limit = dlg_count_wchars(label);
+ chtype key_attr = (selected
+ ? button_key_active_attr
+ : button_key_inactive_attr);
+ chtype label_attr = (selected
+ ? button_label_active_attr
+ : button_label_inactive_attr);
+
+ (void) wmove(win, y, x);
+ wattrset(win, selected
+ ? button_active_attr
+ : button_inactive_attr);
+ (void) waddstr(win, "<");
+ wattrset(win, label_attr);
+ for (i = 0; i < limit; ++i) {
+ int first = indx[i];
+ int last = indx[i + 1];
+
+ switch (state) {
+ case 0:
+#ifdef USE_WIDE_CURSES
+ if ((last - first) != 1) {
+ const char *temp = (label + first);
+ int cmp = string_to_char(&temp);
+ if (dlg_isupper(cmp)) {
+ wattrset(win, key_attr);
+ state = 1;
+ }
+ break;
+ }
+#endif
+ if (dlg_isupper(UCH(label[first]))) {
+ wattrset(win, key_attr);
+ state = 1;
+ }
+ break;
+ case 1:
+ wattrset(win, label_attr);
+ state = 2;
+ break;
+ }
+ waddnstr(win, label + first, last - first);
+ }
+ wattrset(win, selected
+ ? button_active_attr
+ : button_inactive_attr);
+ (void) waddstr(win, ">");
+ (void) wmove(win, y, x + ((int) strspn(label, " ")) + 1);
+}
+
+/*
+ * Count the buttons in the list.
+ */
+int
+dlg_button_count(const char **labels)
+{
+ int result = 0;
+ while (*labels++ != 0)
+ ++result;
+ return result;
+}
+
+/*
+ * Compute the size of the button array in columns. Return the total number of
+ * columns in *length, and the longest button's columns in *longest
+ */
+void
+dlg_button_sizes(const char **labels,
+ int vertical,
+ int *longest,
+ int *length)
+{
+ int n;
+
+ *length = 0;
+ *longest = 0;
+ for (n = 0; labels[n] != 0; n++) {
+ if (vertical) {
+ *length += 1;
+ *longest = 1;
+ } else {
+ int len = dlg_count_columns(labels[n]);
+ if (len > *longest)
+ *longest = len;
+ *length += len;
+ }
+ }
+ /*
+ * If we can, make all of the buttons the same size. This is only optional
+ * for buttons laid out horizontally.
+ */
+ if (*longest < 6 - (*longest & 1))
+ *longest = 6 - (*longest & 1);
+ if (!vertical)
+ *length = *longest * n;
+}
+
+/*
+ * Compute the size of the button array.
+ */
+int
+dlg_button_x_step(const char **labels, int limit, int *gap, int *margin, int *step)
+{
+ int count = dlg_button_count(labels);
+ int longest;
+ int length;
+ int unused;
+ int used;
+
+ if (count == 0)
+ return 0;
+ dlg_button_sizes(labels, FALSE, &longest, &length);
+ used = (length + (count * 2));
+ unused = limit - used;
+
+ if ((*gap = unused / (count + 3)) <= 0) {
+ if ((*gap = unused / (count + 1)) <= 0)
+ *gap = 1;
+ *margin = *gap;
+ } else {
+ *margin = *gap * 2;
+ }
+ *step = *gap + (used + count - 1) / count;
+ return (*gap > 0) && (unused >= 0);
+}
+
+/*
+ * Make sure there is enough space for the buttons
+ */
+void
+dlg_button_layout(const char **labels, int *limit)
+{
+ int width = 1;
+ int gap, margin, step;
+
+ if (labels != 0 && dlg_button_count(labels)) {
+ while (!dlg_button_x_step(labels, width, &gap, &margin, &step))
+ ++width;
+ width += (4 * MARGIN);
+ if (width > COLS)
+ width = COLS;
+ if (width > *limit)
+ *limit = width;
+ }
+}
+
+/*
+ * Print a list of buttons at the given position.
+ */
+void
+dlg_draw_buttons(WINDOW *win,
+ int y, int x,
+ const char **labels,
+ int selected,
+ int vertical,
+ int limit)
+{
+ chtype save = dlg_get_attrs(win);
+ int n;
+ int step = 0;
+ int length;
+ int longest;
+ int final_x;
+ int final_y;
+ int gap;
+ int margin;
+ size_t need;
+ char *buffer;
+
+ dlg_mouse_setbase(getbegx(win), getbegy(win));
+
+ getyx(win, final_y, final_x);
+
+ dlg_button_sizes(labels, vertical, &longest, &length);
+
+ if (vertical) {
+ y += 1;
+ step = 1;
+ } else {
+ dlg_button_x_step(labels, limit, &gap, &margin, &step);
+ x += margin;
+ }
+
+ /*
+ * Allocate a buffer big enough for any label.
+ */
+ need = (size_t) longest;
+ for (n = 0; labels[n] != 0; ++n) {
+ need += strlen(labels[n]) + 1;
+ }
+ buffer = dlg_malloc(char, need);
+ assert_ptr(buffer, "dlg_draw_buttons");
+
+ /*
+ * Draw the labels.
+ */
+ for (n = 0; labels[n] != 0; n++) {
+ center_label(buffer, longest, labels[n]);
+ mouse_mkbutton(y, x, dlg_count_columns(buffer), n);
+ print_button(win, buffer, y, x,
+ (selected == n) || (n == 0 && selected < 0));
+ if (selected == n)
+ getyx(win, final_y, final_x);
+
+ if (vertical) {
+ if ((y += step) > limit)
+ break;
+ } else {
+ if ((x += step) > limit)
+ break;
+ }
+ }
+ (void) wmove(win, final_y, final_x);
+ wrefresh(win);
+ free(buffer);
+ wattrset(win, save);
+}
+
+/*
+ * Match a given character against the beginning of the string, ignoring case
+ * of the given character. The matching string must begin with an uppercase
+ * character.
+ */
+int
+dlg_match_char(int ch, const char *string)
+{
+ if (string != 0) {
+ int cmp2 = string_to_char(&string);
+#ifdef USE_WIDE_CURSES
+ wint_t cmp1 = dlg_toupper(ch);
+ if (cmp2 != 0 && (wchar_t) cmp1 == (wchar_t) dlg_toupper(cmp2)) {
+ return TRUE;
+ }
+#else
+ if (ch > 0 && ch < 256) {
+ if (dlg_toupper(ch) == dlg_toupper(cmp2))
+ return TRUE;
+ }
+#endif
+ }
+ return FALSE;
+}
+
+/*
+ * Find the first uppercase character in the label, which we may use for an
+ * abbreviation.
+ */
+int
+dlg_button_to_char(const char *label)
+{
+ int cmp = -1;
+
+ while (*label != 0) {
+ cmp = string_to_char(&label);
+ if (dlg_isupper(cmp)) {
+ break;
+ }
+ }
+ return cmp;
+}
+
+/*
+ * Given a list of button labels, and a character which may be the abbreviation
+ * for one, find it, if it exists. An abbreviation will be the first character
+ * which happens to be capitalized in the label.
+ */
+int
+dlg_char_to_button(int ch, const char **labels)
+{
+ if (labels != 0) {
+ int j;
+
+ ch = (int) dlg_toupper(dlg_last_getc());
+ for (j = 0; labels[j] != 0; ++j) {
+ int cmp = dlg_button_to_char(labels[j]);
+ if (ch == cmp) {
+ dlg_flush_getc();
+ return j;
+ }
+ }
+ }
+ return DLG_EXIT_UNKNOWN;
+}
+
+static const char *
+my_yes_label(void)
+{
+ return (dialog_vars.yes_label != NULL)
+ ? dialog_vars.yes_label
+ : _("Yes");
+}
+
+static const char *
+my_no_label(void)
+{
+ return (dialog_vars.no_label != NULL)
+ ? dialog_vars.no_label
+ : _("No");
+}
+
+static const char *
+my_ok_label(void)
+{
+ return (dialog_vars.ok_label != NULL)
+ ? dialog_vars.ok_label
+ : _("OK");
+}
+
+static const char *
+my_cancel_label(void)
+{
+ return (dialog_vars.cancel_label != NULL)
+ ? dialog_vars.cancel_label
+ : _("Cancel");
+}
+
+static const char *
+my_exit_label(void)
+{
+ return (dialog_vars.exit_label != NULL)
+ ? dialog_vars.exit_label
+ : _("EXIT");
+}
+
+static const char *
+my_extra_label(void)
+{
+ return (dialog_vars.extra_label != NULL)
+ ? dialog_vars.extra_label
+ : _("Extra");
+}
+
+static const char *
+my_help_label(void)
+{
+ return (dialog_vars.help_label != NULL)
+ ? dialog_vars.help_label
+ : _("Help");
+}
+
+/*
+ * Return a list of button labels.
+ */
+const char **
+dlg_exit_label(void)
+{
+ const char **result;
+
+ if (dialog_vars.extra_button) {
+ result = dlg_ok_labels();
+ } else {
+ static const char *labels[3];
+ int n = 0;
+
+ labels[n++] = my_exit_label();
+ if (dialog_vars.help_button)
+ labels[n++] = my_help_label();
+ labels[n] = 0;
+
+ result = labels;
+ }
+ return result;
+}
+
+/*
+ * Map the given button index for dlg_exit_label() into our exit-code.
+ */
+int
+dlg_exit_buttoncode(int button)
+{
+ return dlg_ok_buttoncode(button);
+}
+
+const char **
+dlg_ok_label(void)
+{
+ static const char *labels[3];
+ int n = 0;
+
+ labels[n++] = my_ok_label();
+ if (dialog_vars.help_button)
+ labels[n++] = my_help_label();
+ labels[n] = 0;
+ return labels;
+}
+
+/*
+ * Return a list of button labels for the OK/Cancel group.
+ */
+const char **
+dlg_ok_labels(void)
+{
+ static const char *labels[5];
+ int n = 0;
+
+ if (!dialog_vars.nook)
+ labels[n++] = my_ok_label();
+ if (dialog_vars.extra_button)
+ labels[n++] = my_extra_label();
+ if (!dialog_vars.nocancel)
+ labels[n++] = my_cancel_label();
+ if (dialog_vars.help_button)
+ labels[n++] = my_help_label();
+ labels[n] = 0;
+ return labels;
+}
+
+/*
+ * Map the given button index for dlg_ok_labels() into our exit-code
+ */
+int
+dlg_ok_buttoncode(int button)
+{
+ int result = DLG_EXIT_ERROR;
+ int n = !dialog_vars.nook;
+
+ if (!dialog_vars.nook && (button <= 0)) {
+ result = DLG_EXIT_OK;
+ } else if (dialog_vars.extra_button && (button == n++)) {
+ result = DLG_EXIT_EXTRA;
+ } else if (!dialog_vars.nocancel && (button == n++)) {
+ result = DLG_EXIT_CANCEL;
+ } else if (dialog_vars.help_button && (button == n)) {
+ result = DLG_EXIT_HELP;
+ }
+ return result;
+}
+
+/*
+ * Given that we're using dlg_ok_labels() to list buttons, find the next index
+ * in the list of buttons. The 'extra' parameter if negative provides a way to
+ * enumerate extra active areas on the widget.
+ */
+int
+dlg_next_ok_buttonindex(int current, int extra)
+{
+ int result = current + 1;
+
+ if (current >= 0
+ && dlg_ok_buttoncode(result) < 0)
+ result = extra;
+ return result;
+}
+
+/*
+ * Similarly, find the previous button index.
+ */
+int
+dlg_prev_ok_buttonindex(int current, int extra)
+{
+ int result = current - 1;
+
+ if (result < extra) {
+ for (result = 0; dlg_ok_buttoncode(result + 1) >= 0; ++result) {
+ ;
+ }
+ }
+ return result;
+}
+
+/*
+ * Find the button-index for the "OK" or "Cancel" button, according to
+ * whether --defaultno is given. If --nocancel was given, we always return
+ * the index for "OK".
+ */
+int
+dlg_defaultno_button(void)
+{
+ int result = 0;
+
+ if (dialog_vars.defaultno && !dialog_vars.nocancel) {
+ while (dlg_ok_buttoncode(result) != DLG_EXIT_CANCEL)
+ ++result;
+ }
+ return result;
+}
+
+/*
+ * Return a list of buttons for Yes/No labels.
+ */
+const char **
+dlg_yes_labels(void)
+{
+ const char **result;
+
+ if (dialog_vars.extra_button) {
+ result = dlg_ok_labels();
+ } else {
+ static const char *labels[4];
+ int n = 0;
+
+ labels[n++] = my_yes_label();
+ labels[n++] = my_no_label();
+ if (dialog_vars.help_button)
+ labels[n++] = my_help_label();
+ labels[n] = 0;
+
+ result = labels;
+ }
+
+ return result;
+}
+
+/*
+ * Map the given button index for dlg_yes_labels() into our exit-code.
+ */
+int
+dlg_yes_buttoncode(int button)
+{
+ int result = DLG_EXIT_ERROR;
+
+ if (dialog_vars.extra_button) {
+ result = dlg_ok_buttoncode(button);
+ } else if (button == 0) {
+ result = DLG_EXIT_OK;
+ } else if (button == 1) {
+ result = DLG_EXIT_CANCEL;
+ } else if (button == 2 && dialog_vars.help_button) {
+ result = DLG_EXIT_HELP;
+ }
+
+ return result;
+}
+
+/*
+ * Return the next index in labels[];
+ */
+int
+dlg_next_button(const char **labels, int button)
+{
+ if (labels[button + 1] != 0)
+ ++button;
+ else
+ button = MIN_BUTTON;
+ return button;
+}
+
+/*
+ * Return the previous index in labels[];
+ */
+int
+dlg_prev_button(const char **labels, int button)
+{
+ if (button > MIN_BUTTON)
+ --button;
+ else {
+ while (labels[button + 1] != 0)
+ ++button;
+ }
+ return button;
+}
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