diff --git a/src/list_window.c b/src/list_window.c
index c6f5375a12a6c159864fc09b7b64b6d4d7ad6a74..c2a4b012f51a76d12ae18fdec3a095b221bfbc8b 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) 2004-2010 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 <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <glib.h>
-#include <ncurses.h>
-
+#include "list_window.h"
#include "config.h"
#include "options.h"
-#include "support.h"
+#include "charset.h"
+#include "match.h"
#include "command.h"
#include "colors.h"
-#include "list_window.h"
+#include "paint.h"
+#include "screen_status.h"
+#include "i18n.h"
+
+#include <assert.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
extern void screen_bell(void);
-list_window_t *
-list_window_init(WINDOW *w, int width, int height)
+struct list_window *
+list_window_init(WINDOW *w, unsigned width, unsigned height)
{
- list_window_t *lw;
-
- lw = g_malloc0(sizeof(list_window_t));
- lw->w = w;
- lw->cols = width;
- lw->rows = height;
- lw->clear = 1;
- return lw;
+ struct list_window *lw;
+
+ lw = g_malloc0(sizeof(*lw));
+ lw->w = w;
+ lw->cols = width;
+ lw->rows = height;
+ lw->range_selection = false;
+ return lw;
}
-list_window_t *
-list_window_free(list_window_t *lw)
+void
+list_window_free(struct list_window *lw)
{
- if( lw )
- {
- memset(lw, 0, sizeof(list_window_t));
- g_free(lw);
- }
- return NULL;
+ assert(lw != NULL);
+
+ g_free(lw);
}
void
-list_window_reset(list_window_t *lw)
+list_window_reset(struct list_window *lw)
{
- lw->selected = 0;
- lw->xoffset = 0;
- lw->start = 0;
- lw->clear = 1;
+ lw->selected = 0;
+ lw->range_selection = false;
+ lw->range_base = 0;
+ lw->start = 0;
}
-void
-list_window_check_selected(list_window_t *lw, int length)
+static unsigned
+list_window_validate_index(const struct list_window *lw, unsigned i)
{
- while( lw->start && lw->start+lw->rows>length)
- lw->start--;
-
- if( lw->selected<0 )
- lw->selected=0;
+ if (lw->length == 0)
+ return 0;
+ else if (i >= lw->length)
+ return lw->length - 1;
+ else
+ return i;
+}
- while( lw->selected<lw->start )
- lw->selected++;
+static void
+list_window_check_selected(struct list_window *lw)
+{
+ lw->selected = list_window_validate_index(lw, lw->selected);
- while( lw->selected>0 && length>0 && lw->selected>=length )
- lw->selected--;
+ if(lw->range_selection)
+ lw->range_base =
+ list_window_validate_index(lw, lw->range_base);
}
-void
-list_window_set_selected(list_window_t *lw, int n)
+/**
+ * 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)
{
- lw->selected=n;
+ list_window_scroll_to(lw, lw->selected);
}
void
-list_window_next(list_window_t *lw, int length)
+list_window_resize(struct list_window *lw, unsigned width, unsigned height)
{
- if( lw->selected < length-1 )
- lw->selected++;
- else if ( options.list_wrap )
- lw->selected = 0;
+ lw->cols = width;
+ lw->rows = height;
+
+ list_window_check_origin(lw);
}
void
-list_window_previous(list_window_t *lw, int length)
+list_window_set_length(struct list_window *lw, unsigned length)
{
- if( lw->selected > 0 )
- lw->selected--;
- else if( options.list_wrap )
- lw->selected = length-1;
+ if (length == lw->length)
+ return;
+
+ lw->length = length;
+
+ list_window_check_selected(lw);
+ list_window_check_origin(lw);
}
void
-list_window_right(list_window_t *lw, int length)
+list_window_center(struct list_window *lw, unsigned n)
{
- lw->xoffset++;
+ if (n > lw->rows / 2)
+ lw->start = n - lw->rows / 2;
+ else
+ lw->start = 0;
+
+ 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_left(list_window_t *lw)
+list_window_scroll_to(struct list_window *lw, unsigned n)
{
- if( lw->xoffset > 0 )
- lw->xoffset--;
+ 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_first(list_window_t *lw)
+list_window_set_cursor(struct list_window *lw, unsigned i)
{
- lw->xoffset = 0;
- lw->selected = 0;
+ lw->range_selection = false;
+ lw->selected = i;
+
+ list_window_check_selected(lw);
+ list_window_check_origin(lw);
}
void
-list_window_last(list_window_t *lw, int length)
+list_window_move_cursor(struct list_window *lw, unsigned n)
{
- lw->xoffset = 0;
- lw->selected = length-1;
+ lw->selected = n;
+
+ list_window_check_selected(lw);
+ list_window_check_origin(lw);
}
void
-list_window_next_page(list_window_t *lw, int length)
+list_window_fetch_cursor(struct list_window *lw)
{
- int step = lw->rows-1;
- if( step<= 0 )
- return;
- if( lw->selected+step < length-1 )
- lw->selected+=step;
- else
- return list_window_last(lw,length);
+ 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_previous_page(list_window_t *lw)
+list_window_get_range(const struct list_window *lw,
+ struct list_window_range *range)
{
- int step = lw->rows-1;
- if( step<= 0 )
- return;
- if( lw->selected-step > 0 )
- lw->selected-=step;
- else
- list_window_first(lw);
+ 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)
+{
+ if (lw->selected + 1 < lw->length)
+ list_window_move_cursor(lw, lw->selected + 1);
+ else if (options.list_wrap)
+ list_window_move_cursor(lw, 0);
+}
-void
-list_window_paint(list_window_t *lw,
- list_window_callback_fn_t callback,
- void *callback_data)
+static void
+list_window_previous(struct list_window *lw)
{
- int i;
- int fill = options.wide_cursor;
+ if (lw->selected > 0)
+ list_window_move_cursor(lw, lw->selected - 1);
+ else if (options.list_wrap)
+ list_window_move_cursor(lw, lw->length - 1);
+}
- if( lw->flags & LW_HIDE_CURSOR )
- {
- lw->selected = -1;
- }
- else
- {
- while( lw->selected < lw->start )
- {
- lw->start--;
- lw->clear=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)
+{
+ list_window_move_cursor(lw, 0);
+}
+
+static void
+list_window_last(struct list_window *lw)
+{
+ if (lw->length > 0)
+ list_window_move_cursor(lw, lw->length - 1);
+ else
+ list_window_move_cursor(lw, 0);
+}
+
+static void
+list_window_next_page(struct list_window *lw)
+{
+ if (lw->rows < 2)
+ return;
+ if (lw->selected + lw->rows < lw->length)
+ list_window_move_cursor(lw, lw->selected + lw->rows - 1);
+ else
+ list_window_last(lw);
+}
+
+static void
+list_window_previous_page(struct list_window *lw)
+{
+ if (lw->rows < 2)
+ return;
+ if (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);
}
- while( lw->selected >= lw->start+lw->rows )
+}
+
+static void
+list_window_scroll_down(struct list_window *lw, unsigned n)
+{
+ if (lw->start + lw->rows < lw->length)
{
- lw->start++;
- lw->clear=1;
+ if (lw->start + lw->rows + n > lw->length - 1)
+ lw->start = lw->length - lw->rows;
+ else
+ lw->start += n;
+
+ list_window_fetch_cursor(lw);
}
- }
-
- for(i=0; i<lw->rows; i++)
- {
- int highlight = 0;
- char *label;
-
- label = (callback) (lw->start+i, &highlight, callback_data);
- wmove(lw->w, i, 0);
- if( lw->clear && (!fill || !label) )
- wclrtoeol(lw->w);
- if( label )
- {
- int selected = lw->start+i == lw->selected;
- size_t len = strlen(label);
-
- if( highlight )
- colors_use(lw->w, COLOR_LIST_BOLD);
- else
- colors_use(lw->w, COLOR_LIST);
-
- if( selected )
- wattron(lw->w, A_REVERSE);
-
- waddnstr(lw->w, label, lw->cols);
- if( fill && len<lw->cols )
- mvwhline(lw->w, i, len, ' ', lw->cols-len);
-
- if( selected )
- wattroff(lw->w, A_REVERSE);
+}
+
+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(const struct list_window *lw,
+ list_window_callback_fn_t callback,
+ void *callback_data)
+{
+ 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;
+ }
+
+ const char *label = callback(lw->start + i, callback_data);
+ assert(label != NULL);
+
+ list_window_paint_row(lw->w, lw->cols,
+ show_cursor &&
+ lw->start + i >= range.start &&
+ lw->start + i < range.end,
+ label);
+ }
+
+ row_color_end(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);
}
-
- }
- lw->clear=0;
}
+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;
-int
-list_window_find(list_window_t *lw,
- list_window_callback_fn_t callback,
- void *callback_data,
- char *str,
- int wrap)
-{
- int h;
- int i = lw->selected+1;
- 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;
- }
- if( wrap && i==lw->selected )
- return 1;
- i++;
+ 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;
+ }
+
+ bool selected = show_cursor &&
+ lw->start + i >= range.start &&
+ lw->start + i < range.end;
+
+ paint_callback(lw->w, lw->start + i, i, lw->cols,
+ selected, callback_data);
}
- if( wrap )
- {
- if ( i==0 ) /* empty list */
- return 1;
- i=0; /* first item */
- screen_bell();
+
+ 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);
}
- }
- return 1;
}
+bool
+list_window_find(struct list_window *lw,
+ list_window_callback_fn_t callback,
+ void *callback_data,
+ const char *str,
+ bool wrap,
+ bool bell_on_wrap)
+{
+ unsigned i = lw->selected + 1;
+
+ 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 false;
+ i++;
+ }
+ if (wrap) {
+ if (i == 0) /* empty list */
+ return 1;
+ i=0; /* first item */
+ if (bell_on_wrap) {
+ screen_bell();
+ }
+ }
+ } while (wrap);
+
+ return false;
+}
-int
-list_window_rfind(list_window_t *lw,
+bool
+list_window_rfind(struct list_window *lw,
list_window_callback_fn_t callback,
void *callback_data,
- char *str,
- int wrap,
- int rows)
+ const char *str,
+ bool wrap,
+ bool bell_on_wrap)
{
- int h;
- int i = lw->selected-1;
- char *label;
+ int i = lw->selected - 1;
+
+ assert(str != NULL);
+
+ if (lw->length == 0)
+ return false;
+
+ 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 false;
+ i--;
+ }
+ if (wrap) {
+ i = lw->length - 1; /* last item */
+ if (bell_on_wrap) {
+ screen_bell();
+ }
+ }
+ } while (wrap);
+
+ return false;
+}
- if ( rows == 0 )
- return 1;
+#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);
- while( wrap || i==lw->selected-1 )
- {
- while( i>=0 && (label=(callback) (i,&h,callback_data)) )
- {
- if( str && label && strcasestr(label, str) )
- {
- lw->selected = i;
- return 0;
- }
- if( wrap && i==lw->selected )
- return 1;
- i--;
- }
- if( wrap )
- {
- i=rows-1; /* last item */
- screen_bell();
+ 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 1;
+ 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;
+ }
+ }
+ g_regex_unref(regex);
+ return false;
+}
+#endif
/* perform basic list window commands (movement) */
-int
-list_window_cmd(list_window_t *lw, int rows, command_t cmd)
-{
- switch(cmd)
- {
- case CMD_LIST_PREVIOUS:
- list_window_previous(lw, rows);
- lw->repaint=1;
- break;
- case CMD_LIST_NEXT:
- list_window_next(lw, rows);
- lw->repaint=1;
- break;
- case CMD_LIST_FIRST:
- list_window_first(lw);
- lw->repaint = 1;
- break;
- case CMD_LIST_LAST:
- list_window_last(lw, rows);
- lw->repaint = 1;
- break;
- case CMD_LIST_NEXT_PAGE:
- list_window_next_page(lw, rows);
- lw->repaint = 1;
- break;
- case CMD_LIST_PREVIOUS_PAGE:
- list_window_previous_page(lw);
- lw->repaint = 1;
- break;
- default:
- return 0;
- }
- return 1;
+bool
+list_window_cmd(struct list_window *lw, command_t cmd)
+{
+ switch (cmd) {
+ case CMD_LIST_PREVIOUS:
+ list_window_previous(lw);
+ break;
+ case CMD_LIST_NEXT:
+ 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);
+ break;
+ case CMD_LIST_NEXT_PAGE:
+ 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 false;
+ }
+
+ return true;
}
+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 < lw->length)
+ lw->start++;
+ break;
+
+ case CMD_LIST_FIRST:
+ lw->start = 0;
+ break;
+
+ case CMD_LIST_LAST:
+ 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;
+ if (lw->start + lw->rows > lw->length) {
+ if (lw->length > lw->rows)
+ lw->start = lw->length - lw->rows;
+ else
+ lw->start = 0;
+ }
+ break;
+
+ case CMD_LIST_PREVIOUS_PAGE:
+ if (lw->start > lw->rows)
+ lw->start -= lw->rows;
+ else
+ 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 false;
+ }
+ return true;
+}
+
+#ifdef HAVE_GETMOUSE
+bool
+list_window_mouse(struct list_window *lw, unsigned long bstate, int y)
+{
+ assert(lw != NULL);
+
+ /* 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 true;
+ }
+
+ /* if the even occurred below the list window move down */
+ if ((unsigned)y >= lw->length) {
+ if (bstate & BUTTON3_CLICKED)
+ list_window_last(lw);
+ else
+ list_window_next_page(lw);
+ return true;
+ }
+
+ return false;
+}
+#endif