From: Jeffrey Middleton <jefromi@gmail.com>
Date: Thu, 5 Mar 2009 22:43:04 +0000 (-0600)
Subject: list_window: Added scroll up/down half-screen commands
X-Git-Tag: release-0.14~81
X-Git-Url: https://git.tokkee.org/?a=commitdiff_plain;h=a445e55a551665fc933c055990f5cffb6a5ae236;p=ncmpc.git

list_window: Added scroll up/down half-screen commands

Added commands to scroll up/down half a screen, using the generic functions from the last commit.  Mapped by default to B and N, to go along nicely with Ctrl-B and Ctrl-N for single-line scrolling.
---

diff --git a/src/command.c b/src/command.c
index 7182d16..809f449 100644
--- a/src/command.c
+++ b/src/command.c
@@ -96,6 +96,10 @@ static command_definition_t cmds[] = {
 	  N_("Scroll up one line") },
 	{ { 2,  0, 0 }, 0, CMD_LIST_SCROLL_UP_LINE, "scroll-up-line",
 	  N_("Scroll down one line") },
+	{ { 'N',  0, 0 }, 0, CMD_LIST_SCROLL_DOWN_HALF, "scroll-down-half",
+	  N_("Scroll up half a screen") },
+	{ { 'B',  0, 0 }, 0, CMD_LIST_SCROLL_UP_HALF, "scroll-up-half",
+	  N_("Scroll down half a screen") },
 
 
 	/* basic screens */
diff --git a/src/command.h b/src/command.h
index abfca44..3adc3d2 100644
--- a/src/command.h
+++ b/src/command.h
@@ -76,6 +76,8 @@ typedef enum {
 	CMD_LIST_VISUAL_SELECT,
 	CMD_LIST_SCROLL_UP_LINE,
 	CMD_LIST_SCROLL_DOWN_LINE,
+	CMD_LIST_SCROLL_UP_HALF,
+	CMD_LIST_SCROLL_DOWN_HALF,
 	CMD_MOUSE_EVENT,
 	CMD_SCREEN_UPDATE,
 	CMD_SCREEN_PREVIOUS,
diff --git a/src/list_window.c b/src/list_window.c
index a127a5b..347cfb2 100644
--- a/src/list_window.c
+++ b/src/list_window.c
@@ -490,6 +490,12 @@ list_window_cmd(struct list_window *lw, unsigned rows, command_t cmd)
 	case CMD_LIST_SCROLL_DOWN_LINE:
 		list_window_scroll_down(lw, rows, 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, rows, (lw->rows - 1) / 2);
+		break;
 	default:
 		return false;
 	}
diff --git a/src/screen_help.c b/src/screen_help.c
index e731664..53b3499 100644
--- a/src/screen_help.c
+++ b/src/screen_help.c
@@ -49,6 +49,8 @@ static help_text_row_t help_text[] = {
 	{ 0, CMD_LIST_VISUAL_SELECT, NULL },
 	{ 0, CMD_LIST_SCROLL_UP_LINE, NULL},
 	{ 0, CMD_LIST_SCROLL_DOWN_LINE, NULL},
+	{ 0, CMD_LIST_SCROLL_UP_HALF, NULL},
+	{ 0, CMD_LIST_SCROLL_DOWN_HALF, NULL},
 	{ 0, CMD_NONE, NULL },
 	{ 0, CMD_SCREEN_PREVIOUS,NULL },
 	{ 0, CMD_SCREEN_NEXT, NULL },