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diff --git a/src/list_window.c b/src/list_window.c
index 001b606fc814fe7aac68316662dd1c3749d0e4f0..3fbe531571584b13164a99cbbf55235732c50557 100644 (file)
--- a/src/list_window.c
+++ b/src/list_window.c
-/*
- * $Id$
- *
- * (c) 2004 by Kalle Wallin <kaw@linux.se>
+/* ncmpc (Ncurses MPD Client)
+ * (c) 2004-2017 The Music Player Daemon Project
+ * Project homepage: http://musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "list_window.h"
#include "config.h"
#include "options.h"
#include "charset.h"
-#include "support.h"
+#include "match.h"
#include "command.h"
#include "colors.h"
+#include "paint.h"
+#include "screen_status.h"
+#include "i18n.h"
#include <assert.h>
#include <stdlib.h>
{
struct list_window *lw;
- lw = g_malloc0(sizeof(list_window_t));
+ lw = g_malloc0(sizeof(*lw));
lw->w = w;
lw->cols = width;
lw->rows = height;
+ lw->range_selection = false;
return lw;
}
void
list_window_free(struct list_window *lw)
{
- if (lw) {
- memset(lw, 0, sizeof(list_window_t));
- g_free(lw);
- }
+ assert(lw != NULL);
+
+ g_free(lw);
}
void
list_window_reset(struct list_window *lw)
{
lw->selected = 0;
- lw->xoffset = 0;
+ lw->range_selection = false;
+ lw->range_base = 0;
lw->start = 0;
}
+static unsigned
+list_window_validate_index(const struct list_window *lw, unsigned i)
+{
+ if (lw->length == 0)
+ return 0;
+ else if (i >= lw->length)
+ return lw->length - 1;
+ else
+ return i;
+}
+
+static void
+list_window_check_selected(struct list_window *lw)
+{
+ lw->selected = list_window_validate_index(lw, lw->selected);
+
+ if(lw->range_selection)
+ lw->range_base =
+ list_window_validate_index(lw, lw->range_base);
+}
+
+/**
+ * Scroll after the cursor was moved, the list was changed or the
+ * window was resized.
+ */
+static void
+list_window_check_origin(struct list_window *lw)
+{
+ list_window_scroll_to(lw, lw->selected);
+}
+
void
-list_window_check_selected(struct list_window *lw, unsigned length)
+list_window_resize(struct list_window *lw, unsigned width, unsigned height)
{
- if (lw->start + lw->rows > length) {
- if (length > lw->rows)
- lw->start = length - lw->rows;
- else
- lw->start = 0;
- }
+ lw->cols = width;
+ lw->rows = height;
- if (lw->selected < lw->start)
- lw->selected = lw->start;
+ list_window_check_origin(lw);
+}
+
+void
+list_window_set_length(struct list_window *lw, unsigned length)
+{
+ if (length == lw->length)
+ return;
+
+ lw->length = length;
- if (length > 0 && lw->selected >= length)
- lw->selected = length - 1;
+ list_window_check_selected(lw);
+ list_window_check_origin(lw);
}
void
-list_window_center(struct list_window *lw, unsigned rows, unsigned n)
+list_window_center(struct list_window *lw, unsigned n)
{
if (n > lw->rows / 2)
lw->start = n - lw->rows / 2;
else
lw->start = 0;
- if (lw->start + lw->rows > rows) {
- if (lw->rows < rows)
- lw->start = rows - lw->rows;
+ if (lw->start + lw->rows > lw->length) {
+ if (lw->rows < lw->length)
+ lw->start = lw->length - lw->rows;
else
lw->start = 0;
}
}
void
-list_window_set_selected(struct list_window *lw, unsigned n)
+list_window_scroll_to(struct list_window *lw, unsigned n)
+{
+ int start = lw->start;
+
+ if ((unsigned) options.scroll_offset * 2 >= lw->rows)
+ // Center if the offset is more than half the screen
+ start = n - lw->rows / 2;
+ else {
+ if (n < lw->start + options.scroll_offset)
+ start = n - options.scroll_offset;
+
+ if (n >= lw->start + lw->rows - options.scroll_offset)
+ start = n - lw->rows + 1 + options.scroll_offset;
+ }
+
+ if (start + lw->rows > lw->length)
+ start = lw->length - lw->rows;
+
+ if (start < 0 || lw->length == 0)
+ start = 0;
+
+ lw->start = start;
+}
+
+void
+list_window_set_cursor(struct list_window *lw, unsigned i)
+{
+ lw->range_selection = false;
+ lw->selected = i;
+
+ list_window_check_selected(lw);
+ list_window_check_origin(lw);
+}
+
+void
+list_window_move_cursor(struct list_window *lw, unsigned n)
{
lw->selected = n;
+
+ list_window_check_selected(lw);
+ list_window_check_origin(lw);
+}
+
+void
+list_window_fetch_cursor(struct list_window *lw)
+{
+ if (lw->start > 0 &&
+ lw->selected < lw->start + options.scroll_offset)
+ list_window_move_cursor(lw, lw->start + options.scroll_offset);
+ else if (lw->start + lw->rows < lw->length &&
+ lw->selected > lw->start + lw->rows - 1 - options.scroll_offset)
+ list_window_move_cursor(lw, lw->start + lw->rows - 1 - options.scroll_offset);
+}
+
+void
+list_window_get_range(const struct list_window *lw,
+ struct list_window_range *range)
+{
+ if (lw->length == 0) {
+ /* empty list - no selection */
+ range->start = 0;
+ range->end = 0;
+ } else if (lw->range_selection) {
+ /* a range selection */
+ if (lw->range_base < lw->selected) {
+ range->start = lw->range_base;
+ range->end = lw->selected + 1;
+ } else {
+ range->start = lw->selected;
+ range->end = lw->range_base + 1;
+ }
+ } else {
+ /* no range, just the cursor */
+ range->start = lw->selected;
+ range->end = lw->selected + 1;
+ }
}
static void
-list_window_next(struct list_window *lw, unsigned length)
+list_window_next(struct list_window *lw)
{
- if (lw->selected + 1 < length)
- lw->selected++;
+ if (lw->selected + 1 < lw->length)
+ list_window_move_cursor(lw, lw->selected + 1);
else if (options.list_wrap)
- lw->selected = 0;
+ list_window_move_cursor(lw, 0);
}
static void
-list_window_previous(struct list_window *lw, unsigned length)
+list_window_previous(struct list_window *lw)
{
if (lw->selected > 0)
- lw->selected--;
+ list_window_move_cursor(lw, lw->selected - 1);
else if (options.list_wrap)
- lw->selected = length - 1;
+ list_window_move_cursor(lw, lw->length - 1);
+}
+
+static void
+list_window_top(struct list_window *lw)
+{
+ if (lw->start == 0)
+ list_window_move_cursor(lw, lw->start);
+ else
+ if ((unsigned) options.scroll_offset * 2 >= lw->rows)
+ list_window_move_cursor(lw, lw->start + lw->rows / 2);
+ else
+ list_window_move_cursor(lw, lw->start + options.scroll_offset);
+}
+
+static void
+list_window_middle(struct list_window *lw)
+{
+ if (lw->length >= lw->rows)
+ list_window_move_cursor(lw, lw->start + lw->rows / 2);
+ else
+ list_window_move_cursor(lw, lw->length / 2);
+}
+
+static void
+list_window_bottom(struct list_window *lw)
+{
+ if (lw->length >= lw->rows)
+ if ((unsigned) options.scroll_offset * 2 >= lw->rows)
+ list_window_move_cursor(lw, lw->start + lw->rows / 2);
+ else
+ if (lw->start + lw->rows == lw->length)
+ list_window_move_cursor(lw, lw->length - 1);
+ else
+ list_window_move_cursor(lw, lw->start + lw->rows - 1 - options.scroll_offset);
+ else
+ list_window_move_cursor(lw, lw->length - 1);
}
static void
list_window_first(struct list_window *lw)
{
- lw->xoffset = 0;
- lw->selected = 0;
+ list_window_move_cursor(lw, 0);
}
static void
-list_window_last(struct list_window *lw, unsigned length)
+list_window_last(struct list_window *lw)
{
- lw->xoffset = 0;
- if (length > 0)
- lw->selected = length - 1;
+ if (lw->length > 0)
+ list_window_move_cursor(lw, lw->length - 1);
else
- lw->selected = 0;
+ list_window_move_cursor(lw, 0);
}
static void
-list_window_next_page(struct list_window *lw, unsigned length)
+list_window_next_page(struct list_window *lw)
{
if (lw->rows < 2)
return;
- if (lw->selected + lw->rows < length)
- lw->selected += lw->rows - 1;
+ if (lw->selected + lw->rows < lw->length)
+ list_window_move_cursor(lw, lw->selected + lw->rows - 1);
else
- list_window_last(lw, length);
+ list_window_last(lw);
}
static void
if (lw->rows < 2)
return;
if (lw->selected > lw->rows - 1)
- lw->selected -= lw->rows - 1;
+ list_window_move_cursor(lw, lw->selected - lw->rows + 1);
else
list_window_first(lw);
}
+static void
+list_window_scroll_up(struct list_window *lw, unsigned n)
+{
+ if (lw->start > 0) {
+ if (n > lw->start)
+ lw->start = 0;
+ else
+ lw->start -= n;
+
+ list_window_fetch_cursor(lw);
+ }
+}
+
+static void
+list_window_scroll_down(struct list_window *lw, unsigned n)
+{
+ if (lw->start + lw->rows < lw->length)
+ {
+ if (lw->start + lw->rows + n > lw->length - 1)
+ lw->start = lw->length - lw->rows;
+ else
+ lw->start += n;
+
+ list_window_fetch_cursor(lw);
+ }
+}
+
+static void
+list_window_paint_row(WINDOW *w, unsigned width, bool selected,
+ const char *text)
+{
+ row_paint_text(w, width, COLOR_LIST,
+ selected, text);
+}
void
-list_window_paint(struct list_window *lw,
+list_window_paint(const struct list_window *lw,
list_window_callback_fn_t callback,
void *callback_data)
{
- unsigned i;
- int fill = options.wide_cursor;
- int show_cursor = !(lw->flags & LW_HIDE_CURSOR);
+ bool show_cursor = !lw->hide_cursor &&
+ (!options.hardware_cursor || lw->range_selection);
+ struct list_window_range range;
+
+ if (show_cursor)
+ list_window_get_range(lw, &range);
+
+ for (unsigned i = 0; i < lw->rows; i++) {
+ wmove(lw->w, i, 0);
+
+ if (lw->start + i >= lw->length) {
+ wclrtobot(lw->w);
+ break;
+ }
- if (show_cursor) {
- if (lw->selected < lw->start)
- lw->start = lw->selected;
+ const char *label = callback(lw->start + i, callback_data);
+ assert(label != NULL);
- if (lw->selected >= lw->start + lw->rows)
- lw->start = lw->selected - lw->rows + 1;
+ list_window_paint_row(lw->w, lw->cols,
+ show_cursor &&
+ lw->start + i >= range.start &&
+ lw->start + i < range.end,
+ label);
}
- for (i = 0; i < lw->rows; i++) {
- int highlight = 0;
- const char *label;
+ row_color_end(lw->w);
- label = callback(lw->start + i, &highlight, callback_data);
- wmove(lw->w, i, 0);
+ if (options.hardware_cursor && lw->selected >= lw->start &&
+ lw->selected < lw->start + lw->rows) {
+ curs_set(1);
+ wmove(lw->w, lw->selected - lw->start, 0);
+ }
+}
- if (label) {
- int selected = lw->start + i == lw->selected;
- size_t len = my_strlen(label);
+void
+list_window_paint2(const struct list_window *lw,
+ list_window_paint_callback_t paint_callback,
+ const void *callback_data)
+{
+ bool show_cursor = !lw->hide_cursor &&
+ (!options.hardware_cursor || lw->range_selection);
+ struct list_window_range range;
- if (highlight)
- colors_use(lw->w, COLOR_LIST_BOLD);
- else
- colors_use(lw->w, COLOR_LIST);
+ if (show_cursor)
+ list_window_get_range(lw, &range);
- if (show_cursor && selected)
- wattron(lw->w, A_REVERSE);
+ for (unsigned i = 0; i < lw->rows; i++) {
+ wmove(lw->w, i, 0);
+
+ if (lw->start + i >= lw->length) {
+ wclrtobot(lw->w);
+ break;
+ }
- //waddnstr(lw->w, label, lw->cols);
- waddstr(lw->w, label);
- if (fill && len < lw->cols)
- whline(lw->w, ' ', lw->cols-len);
+ bool selected = show_cursor &&
+ lw->start + i >= range.start &&
+ lw->start + i < range.end;
- if (selected)
- wattroff(lw->w, A_REVERSE);
+ paint_callback(lw->w, lw->start + i, i, lw->cols,
+ selected, callback_data);
+ }
- if (!fill && len < lw->cols)
- wclrtoeol(lw->w);
- } else
- wclrtoeol(lw->w);
+ if (options.hardware_cursor && lw->selected >= lw->start &&
+ lw->selected < lw->start + lw->rows) {
+ curs_set(1);
+ wmove(lw->w, lw->selected - lw->start, 0);
}
}
-int
+bool
list_window_find(struct list_window *lw,
list_window_callback_fn_t callback,
void *callback_data,
const char *str,
- int wrap)
+ bool wrap,
+ bool bell_on_wrap)
{
- int h;
unsigned i = lw->selected + 1;
- const char *label;
- while (wrap || i == lw->selected + 1) {
- while ((label = callback(i,&h,callback_data))) {
- if (str && label && strcasestr(label, str)) {
- lw->selected = i;
- return 0;
+ assert(str != NULL);
+
+ do {
+ while (i < lw->length) {
+ const char *label = callback(i, callback_data);
+ assert(label != NULL);
+
+ if (match_line(label, str)) {
+ list_window_move_cursor(lw, i);
+ return true;
}
if (wrap && i == lw->selected)
- return 1;
+ return false;
i++;
}
if (wrap) {
if (i == 0) /* empty list */
return 1;
i=0; /* first item */
- screen_bell();
+ if (bell_on_wrap) {
+ screen_bell();
+ }
}
- }
+ } while (wrap);
- return 1;
+ return false;
}
-int
+bool
list_window_rfind(struct list_window *lw,
list_window_callback_fn_t callback,
void *callback_data,
const char *str,
- int wrap,
- unsigned rows)
+ bool wrap,
+ bool bell_on_wrap)
{
- int h;
int i = lw->selected - 1;
- const char *label;
- if (rows == 0)
- return 1;
+ assert(str != NULL);
+
+ if (lw->length == 0)
+ return false;
- while (wrap || i == (int)lw->selected - 1) {
- while (i >= 0 && (label = callback(i,&h,callback_data))) {
- if( str && label && strcasestr(label, str) ) {
- lw->selected = i;
- return 0;
+ do {
+ while (i >= 0) {
+ const char *label = callback(i, callback_data);
+ assert(label != NULL);
+
+ if (match_line(label, str)) {
+ list_window_move_cursor(lw, i);
+ return true;
}
if (wrap && i == (int)lw->selected)
- return 1;
+ return false;
i--;
}
if (wrap) {
- i = rows - 1; /* last item */
- screen_bell();
+ i = lw->length - 1; /* last item */
+ if (bell_on_wrap) {
+ screen_bell();
+ }
+ }
+ } while (wrap);
+
+ return false;
+}
+
+#ifdef NCMPC_MINI
+bool
+list_window_jump(struct list_window *lw,
+ list_window_callback_fn_t callback,
+ void *callback_data,
+ const char *str)
+{
+ assert(str != NULL);
+
+ for (unsigned i = 0; i < lw->length; i++) {
+ const char *label = callback(i, callback_data);
+ assert(label != NULL);
+
+ if (g_ascii_strncasecmp(label, str, strlen(str)) == 0) {
+ list_window_move_cursor(lw, i);
+ return true;
+ }
+ }
+ return false;
+}
+#else
+bool
+list_window_jump(struct list_window *lw,
+ list_window_callback_fn_t callback,
+ void *callback_data,
+ const char *str)
+{
+ assert(str != NULL);
+
+ GRegex *regex = compile_regex(str, options.jump_prefix_only);
+ if (regex == NULL)
+ return false;
+
+ for (unsigned i = 0; i < lw->length; i++) {
+ const char *label = callback(i, callback_data);
+ assert(label != NULL);
+
+ if (match_regex(regex, label)) {
+ g_regex_unref(regex);
+ list_window_move_cursor(lw, i);
+ return true;
}
}
- return 1;
+ g_regex_unref(regex);
+ return false;
}
+#endif
/* perform basic list window commands (movement) */
-int
-list_window_cmd(struct list_window *lw, unsigned rows, command_t cmd)
+bool
+list_window_cmd(struct list_window *lw, command_t cmd)
{
switch (cmd) {
case CMD_LIST_PREVIOUS:
- list_window_previous(lw, rows);
+ list_window_previous(lw);
break;
case CMD_LIST_NEXT:
- list_window_next(lw, rows);
+ list_window_next(lw);
+ break;
+ case CMD_LIST_TOP:
+ list_window_top(lw);
+ break;
+ case CMD_LIST_MIDDLE:
+ list_window_middle(lw);
+ break;
+ case CMD_LIST_BOTTOM:
+ list_window_bottom(lw);
break;
case CMD_LIST_FIRST:
list_window_first(lw);
break;
case CMD_LIST_LAST:
- list_window_last(lw, rows);
+ list_window_last(lw);
break;
case CMD_LIST_NEXT_PAGE:
- list_window_next_page(lw, rows);
+ list_window_next_page(lw);
break;
case CMD_LIST_PREVIOUS_PAGE:
list_window_previous_page(lw);
break;
+ case CMD_LIST_RANGE_SELECT:
+ if(lw->range_selection)
+ {
+ screen_status_printf(_("Range selection disabled"));
+ list_window_set_cursor(lw, lw->selected);
+ }
+ else
+ {
+ screen_status_printf(_("Range selection enabled"));
+ lw->range_base = lw->selected;
+ lw->range_selection = true;
+ }
+ break;
+ case CMD_LIST_SCROLL_UP_LINE:
+ list_window_scroll_up(lw, 1);
+ break;
+ case CMD_LIST_SCROLL_DOWN_LINE:
+ list_window_scroll_down(lw, 1);
+ break;
+ case CMD_LIST_SCROLL_UP_HALF:
+ list_window_scroll_up(lw, (lw->rows - 1) / 2);
+ break;
+ case CMD_LIST_SCROLL_DOWN_HALF:
+ list_window_scroll_down(lw, (lw->rows - 1) / 2);
+ break;
default:
- return 0;
+ return false;
}
- return 1;
+ return true;
}
-int
-list_window_scroll_cmd(struct list_window *lw, unsigned rows, command_t cmd)
+bool
+list_window_scroll_cmd(struct list_window *lw, command_t cmd)
{
switch (cmd) {
+ case CMD_LIST_SCROLL_UP_LINE:
case CMD_LIST_PREVIOUS:
if (lw->start > 0)
lw->start--;
break;
+ case CMD_LIST_SCROLL_DOWN_LINE:
case CMD_LIST_NEXT:
- if (lw->start + lw->rows < rows)
+ if (lw->start + lw->rows < lw->length)
lw->start++;
break;
break;
case CMD_LIST_LAST:
- if (rows > lw->rows)
- lw->start = rows - lw->rows;
+ if (lw->length > lw->rows)
+ lw->start = lw->length - lw->rows;
else
lw->start = 0;
break;
case CMD_LIST_NEXT_PAGE:
- lw->start += lw->rows - 1;
- if (lw->start + lw->rows > rows) {
- if (rows > lw->rows)
- lw->start = rows - lw->rows;
+ lw->start += lw->rows;
+ if (lw->start + lw->rows > lw->length) {
+ if (lw->length > lw->rows)
+ lw->start = lw->length - lw->rows;
else
lw->start = 0;
}
lw->start = 0;
break;
+ case CMD_LIST_SCROLL_UP_HALF:
+ if (lw->start > (lw->rows - 1) / 2)
+ lw->start -= (lw->rows - 1) / 2;
+ else
+ lw->start = 0;
+ break;
+
+ case CMD_LIST_SCROLL_DOWN_HALF:
+ lw->start += (lw->rows - 1) / 2;
+ if (lw->start + lw->rows > lw->length) {
+ if (lw->length > lw->rows)
+ lw->start = lw->length - lw->rows;
+ else
+ lw->start = 0;
+ }
+ break;
+
default:
- return 0;
+ return false;
}
- return 1;
+ return true;
}
#ifdef HAVE_GETMOUSE
-int
-list_window_mouse(struct list_window *lw, unsigned rows,
- unsigned long bstate, int y)
+bool
+list_window_mouse(struct list_window *lw, unsigned long bstate, int y)
{
assert(lw != NULL);
- /* if the even occured above the list window move up */
+ /* if the even occurred above the list window move up */
if (y < 0) {
if (bstate & BUTTON3_CLICKED)
list_window_first(lw);
else
list_window_previous_page(lw);
- return 1;
+ return true;
}
- /* if the even occured below the list window move down */
- if ((unsigned)y >= rows) {
+ /* if the even occurred below the list window move down */
+ if ((unsigned)y >= lw->length) {
if (bstate & BUTTON3_CLICKED)
- list_window_last(lw, rows);
+ list_window_last(lw);
else
- list_window_next_page(lw, rows);
- return 1;
+ list_window_next_page(lw);
+ return true;
}
- return 0;
+ return false;
}
#endif
-
-list_window_state_t *
-list_window_init_state(void)
-{
- return g_malloc0(sizeof(list_window_state_t));
-}
-
-void
-list_window_free_state(list_window_state_t *state)
-{
- if (state) {
- if (state->list) {
- GList *list = state->list;
-
- while (list) {
- g_free(list->data);
- list->data = NULL;
- list = list->next;
- }
-
- g_list_free(state->list);
- state->list = NULL;
- }
-
- g_free(state);
- }
-}
-
-void
-list_window_push_state(list_window_state_t *state, struct list_window *lw)
-{
- if (state) {
- struct list_window *tmp = g_malloc(sizeof(list_window_t));
- memcpy(tmp, lw, sizeof(list_window_t));
- state->list = g_list_prepend(state->list, (gpointer) tmp);
- list_window_reset(lw);
- }
-}
-
-bool
-list_window_pop_state(list_window_state_t *state, struct list_window *lw)
-{
- if (state && state->list) {
- struct list_window *tmp = state->list->data;
-
- memcpy(lw, tmp, sizeof(list_window_t));
- g_free(tmp);
- state->list->data = NULL;
- state->list = g_list_delete_link(state->list, state->list);
- }
-
- // return TRUE if there are still states in the list
- return (state && state->list) ? TRUE : FALSE;
-}