diff options
| -rw-r--r-- | ui/ncurses/nc-widgets.c | 365 | ||||
| -rw-r--r-- | ui/ncurses/nc-widgets.h | 19 |
2 files changed, 383 insertions, 1 deletions
diff --git a/ui/ncurses/nc-widgets.c b/ui/ncurses/nc-widgets.c index f821929..5c67d82 100644 --- a/ui/ncurses/nc-widgets.c +++ b/ui/ncurses/nc-widgets.c @@ -61,6 +61,7 @@ #define to_textbox(w) container_of(w, struct nc_widget_textbox, widget) #define to_button(w) container_of(w, struct nc_widget_button, widget) #define to_select(w) container_of(w, struct nc_widget_select, widget) +#define to_subset(w) container_of(w, struct nc_widget_subset, widget) static const char *checkbox_checked_str = "[*]"; static const char *checkbox_unchecked_str = "[ ]"; @@ -112,6 +113,24 @@ struct nc_widget_textbox { struct nc_widget widget; }; +struct nc_widget_subset { + struct nc_widget widget; + int *active; + int n_active; + struct subset_option { + char *str; + int val; + FIELD *field; + } *options; + int n_options; + int top, left, size; + struct nc_widgetset *set; + void (*on_change)(void *, int); + void *on_change_arg; + void (*screen_cb)(void *, + struct nc_widget_subset *, int); +}; + struct nc_widget_select { struct nc_widget widget; struct select_option { @@ -140,6 +159,21 @@ static bool key_is_select(int key) return key == ' ' || key == '\r' || key == '\n' || key == KEY_ENTER; } +static bool key_is_minus(int key) +{ + return key == 055; +} + +static bool key_is_left(int key) +{ + return key == KEY_LEFT; +} + +static bool key_is_right(int key) +{ + return key == KEY_RIGHT; +} + static bool process_key_nop(struct nc_widget *widget __attribute__((unused)), FORM *form __attribute((unused)), int key __attribute__((unused))) @@ -155,6 +189,11 @@ static void field_set_visible(FIELD *field, bool visible) set_field_opts(field, opts); } +static bool field_visible(FIELD *field) +{ + return (field_opts(field) & O_VISIBLE) == O_VISIBLE; +} + static void field_move(FIELD *field, int y, int x) { move_field(field, y, x); @@ -414,6 +453,329 @@ void widget_textbox_set_validator_ipv4_multi(struct nc_widget_textbox *textbox) set_field_type(textbox->widget.field, textbox->set->ipv4_multi_type); } +static void subset_update_order(struct nc_widget_subset *subset) +{ + char *str; + int i, val; + + for (i = 0; i < subset->n_active; i++) { + val = subset->active[i]; + str = talloc_asprintf(subset, "(%d) %s", + i, subset->options[val].str); + set_field_buffer(subset->options[val].field, 0, + str); + talloc_free(str); + } +} + +static void widget_focus_change(struct nc_widget *widget, FIELD *field, + bool focussed); + +static void subset_delete_active(struct nc_widget_subset *subset, int idx) +{ + bool last = idx == (subset->n_active - 1); + struct nc_widgetset *set = subset->set; + struct nc_widget *widget; + size_t rem; + int i, val; + + /* Shift field focus to nearest active option or next visible field */ + if (subset->n_active > 1) { + if (last) + val = subset->active[idx - 1]; + else + val = subset->active[idx + 1]; + set->cur_field = subset->options[val].field; + } else { + for (i = 0; i < set->n_fields; i++) + if (field_visible(set->fields[i])) { + set->cur_field = set->fields[i]; + break; + } + } + + set_current_field(set->form, set->cur_field); + widget = field_userptr(set->cur_field); + widget_focus_change(widget, set->cur_field, true); + if (set->widget_focus) + set->widget_focus(widget, set->widget_focus_arg); + + /* Update active array */ + rem = sizeof(int) * (subset->n_active - idx - 1); + val = subset->active[idx]; + field_set_visible(subset->options[val].field, false); + if (rem) + memmove(&subset->active[idx], &subset->active[idx + 1], rem); + subset->n_active--; + subset->active = talloc_realloc(subset, subset->active, + int, subset->n_active); + + subset->widget.height = subset->n_active; +} + +static bool subset_process_key(struct nc_widget *w, FORM *form, int key) +{ + struct nc_widget_subset *subset = to_subset(w); + int i, val, opt_idx = -1; + FIELD *field; + + if (!key_is_minus(key) && !key_is_left(key) && !key_is_right(key)) + return false; + + field = current_field(form); + + for (i = 0; i < subset->n_active; i++) { + val = subset->active[i]; + if (subset->options[val].field == field) { + opt_idx = i; + break; + } + } + + if (opt_idx < 0) + return false; + + if (key_is_minus(key)) + subset_delete_active(subset, opt_idx); + + if (key_is_left(key)){ + if (opt_idx == 0) + return true; + + val = subset->active[opt_idx]; + subset->active[opt_idx] = subset->active[opt_idx - 1]; + subset->active[opt_idx - 1] = val; + } + + if (key_is_right(key)){ + if (opt_idx >= subset->n_active - 1) + return true; + + val = subset->active[opt_idx]; + subset->active[opt_idx] = subset->active[opt_idx + 1]; + subset->active[opt_idx + 1] = val; + } + + subset_update_order(subset); + + if (subset->on_change) + subset->on_change(subset->on_change_arg, 0); + + return true; +} + +static void subset_set_visible(struct nc_widget *widget, bool visible) +{ + struct nc_widget_subset *subset = to_subset(widget); + int i, val; + + for (i = 0; i < subset->n_active; i++) { + val = subset->active[i]; + field_set_visible(subset->options[val].field, visible); + } +} + +static void subset_move(struct nc_widget *widget, int y, int x) +{ + struct nc_widget_subset *subset = to_subset(widget); + int i, val; + + for (i = 0; i < subset->n_active; i++) { + val = subset->active[i]; + field_move(subset->options[val].field, y + i , x); + } +} + +static void subset_field_focus(struct nc_widget *widget, FIELD *field) +{ + struct nc_widget_subset *subset = to_subset(widget); + int i, val; + + for (i = 0; i < subset->n_active; i++) { + val = subset->active[i]; + if (field == subset->options[val].field) { + widget->focus_y = i; + return; + } + } +} + +static int subset_destructor(void *ptr) +{ + struct nc_widget_subset *subset = ptr; + int i; + + for (i = 0; i < subset->n_options; i++) + free_field(subset->options[i].field); + + return 0; +} + +struct nc_widget_subset *widget_new_subset(struct nc_widgetset *set, + int y, int x, int len, void *screen_cb) +{ + struct nc_widget_subset *subset; + + subset = talloc_zero(set, struct nc_widget_subset); + subset->widget.width = len; + subset->widget.height = 0; + subset->widget.x = x; + subset->widget.y = y; + subset->widget.process_key = subset_process_key; + subset->widget.set_visible = subset_set_visible; + subset->widget.move = subset_move; + subset->widget.field_focus = subset_field_focus; + subset->widget.focussed_attr = A_REVERSE; + subset->widget.unfocussed_attr = A_NORMAL; + subset->top = y; + subset->left = x; + subset->size = len; + subset->set = set; + subset->n_active = subset->n_options = 0; + subset->active = NULL; + subset->options = NULL; + subset->screen_cb = screen_cb; + + talloc_set_destructor(subset, subset_destructor); + + return subset; +} + +void widget_subset_add_option(struct nc_widget_subset *subset, const char *text) +{ + FIELD *f; + int i; + + i = subset->n_options++; + subset->options = talloc_realloc(subset, subset->options, + struct subset_option, i + 1); + + subset->options[i].str = talloc_strdup(subset->options, text); + + subset->options[i].field = f = new_field(1, subset->size, subset->top + i, + subset->left, 0, 0); + + field_opts_off(f, O_WRAP | O_EDIT); + set_field_userptr(f, &subset->widget); + set_field_buffer(f, 0, subset->options[i].str); + field_set_visible(f, false); + widgetset_add_field(subset->set, f); +} + +void widget_subset_make_active(struct nc_widget_subset *subset, int idx) +{ + int i; + + for (i = 0; i < subset->n_active; i++) + if (subset->active[i] == idx) { + pb_debug("%s: Index %d already active\n", __func__, idx); + return; + } + + i = subset->n_active++; + subset->widget.height = subset->n_active; + subset->active = talloc_realloc(subset, subset->active, + int, i + 1); + subset->active[i] = idx; + + subset_update_order(subset); +} + +int widget_subset_get_order(void *ctx, unsigned int **order, + struct nc_widget_subset *subset) +{ + unsigned int *buf = talloc_array(ctx, unsigned int, subset->n_active); + int i; + + for (i = 0; i < subset->n_active; i++) + buf[i] = subset->active[i]; + + *order = buf; + return i; +} + +void widget_subset_show_inactive(struct nc_widget_subset *subset, + struct nc_widget_select *select) +{ + bool active = false, first = true; + int i, j; + + for (i = 0; i < subset->n_options; i++) { + active = false; + for (j = 0; j < subset->n_active; j++) + if (subset->active[j] == i) + active = true; + + if (active) + continue; + + widget_select_add_option(select, i, + subset->options[i].str, first); + if (first) + first = false; + } +} + +int widget_subset_n_inactive(struct nc_widget_subset *subset) +{ + return subset->n_options - subset->n_active; +} + +int widget_subset_height(struct nc_widget_subset *subset) +{ + return subset->n_active; +} + +void widget_subset_on_change(struct nc_widget_subset *subset, + void (*on_change)(void *, int), void *arg) +{ + subset->on_change = on_change; + subset->on_change_arg = arg; +} + +void widget_subset_drop_options(struct nc_widget_subset *subset) +{ + struct nc_widgetset *set = subset->set; + int i; + + for (i = 0; i < subset->n_options; i++) { + FIELD *field = subset->options[i].field; + widgetset_remove_field(set, field); + if (field == set->cur_field) + set->cur_field = NULL; + free_field(subset->options[i].field); + } + + talloc_free(subset->options); + talloc_free(subset->active); + subset->options = NULL; + subset->active = NULL; + subset->n_options = 0; + subset->n_active = 0; + subset->widget.height = 0; + subset->widget.focus_y = 0; +} + +void widget_subset_clear_active(struct nc_widget_subset *subset) +{ + int i; + + for (i = 0; i < subset->n_options; i++) + field_set_visible(subset->options[i].field, false); + + talloc_free(subset->active); + subset->active = NULL; + subset->n_active = 0; + subset->widget.height = 0; + subset->widget.focus_y = 0; +} + +void widget_subset_callback(void *arg, + struct nc_widget_subset *subset, int idx) +{ + subset->screen_cb(arg, subset, idx); +} + static void select_option_change(struct select_option *opt, bool selected) { const char *str; @@ -679,7 +1041,7 @@ struct nc_widget_button *widget_new_button(struct nc_widgetset *set, return button; } -static void widget_focus_change(struct nc_widget *widget, FIELD *field, +void widget_focus_change(struct nc_widget *widget, FIELD *field, bool focussed) { int attr = focussed ? widget->focussed_attr : widget->unfocussed_attr; @@ -856,6 +1218,7 @@ static void widgetset_remove_field(struct nc_widgetset *set, FIELD *field) DECLARE_BASEFN(textbox); DECLARE_BASEFN(checkbox); +DECLARE_BASEFN(subset); DECLARE_BASEFN(select); DECLARE_BASEFN(label); DECLARE_BASEFN(button); diff --git a/ui/ncurses/nc-widgets.h b/ui/ncurses/nc-widgets.h index 09c3b1f..4b67da7 100644 --- a/ui/ncurses/nc-widgets.h +++ b/ui/ncurses/nc-widgets.h @@ -29,6 +29,8 @@ struct nc_widget_checkbox *widget_new_checkbox(struct nc_widgetset *set, int y, int x, bool checked); struct nc_widget_textbox *widget_new_textbox(struct nc_widgetset *set, int y, int x, int len, char *str); +struct nc_widget_subset *widget_new_subset(struct nc_widgetset *set, + int y, int x, int len, void *screen_cb); struct nc_widget_select *widget_new_select(struct nc_widgetset *set, int y, int x, int len); struct nc_widget_button *widget_new_button(struct nc_widgetset *set, @@ -41,6 +43,12 @@ void widget_textbox_set_validator_integer(struct nc_widget_textbox *textbox, void widget_textbox_set_validator_ipv4(struct nc_widget_textbox *textbox); void widget_textbox_set_validator_ipv4_multi(struct nc_widget_textbox *textbox); +void widget_subset_add_option(struct nc_widget_subset *subset, const char *text); +void widget_subset_make_active(struct nc_widget_subset *subset, int idx); + +void widget_subset_on_change(struct nc_widget_subset *subset, + void (*on_change)(void *arg, int value), void *arg); + void widget_select_add_option(struct nc_widget_select *select, int value, const char *text, bool selected); @@ -49,6 +57,16 @@ void widget_select_on_change(struct nc_widget_select *select, char *widget_textbox_get_value(struct nc_widget_textbox *textbox); bool widget_checkbox_get_value(struct nc_widget_checkbox *checkbox); +int widget_subset_get_order(void *ctx, unsigned int **order, + struct nc_widget_subset *subset); +void widget_subset_show_inactive(struct nc_widget_subset *subset, + struct nc_widget_select *select); +int widget_subset_n_inactive(struct nc_widget_subset *subset); +int widget_subset_height(struct nc_widget_subset *subset); +void widget_subset_drop_options(struct nc_widget_subset *subset); +void widget_subset_clear_active(struct nc_widget_subset *subset); +void widget_subset_callback(void *arg, + struct nc_widget_subset *subset, int idx); int widget_select_get_value(struct nc_widget_select *select); int widget_select_height(struct nc_widget_select *select); void widget_select_drop_options(struct nc_widget_select *select); @@ -56,6 +74,7 @@ void widget_select_drop_options(struct nc_widget_select *select); /* generic widget API */ struct nc_widget *widget_textbox_base(struct nc_widget_textbox *textbox); struct nc_widget *widget_checkbox_base(struct nc_widget_checkbox *checkbox); +struct nc_widget *widget_subset_base(struct nc_widget_subset *subset); struct nc_widget *widget_select_base(struct nc_widget_select *select); struct nc_widget *widget_label_base(struct nc_widget_label *label); struct nc_widget *widget_button_base(struct nc_widget_button *button); |
