commit 2b9d6a0e6c7b090d9bda9e959298039156e0aac9
parent d24d0a43e86d5a04b0b0b799a0ebd2ec7610ab05
Author: David Lawrence Ramsey <pooka109@gmail.com>
Date: Tue, 1 Nov 2005 17:45:31 +0000
move get_page_start() from winio.c to utils.c too, and fix a few
comments
git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@3066 35c25a1d-7b9e-4130-9fde-d3aeb78583b8
Diffstat:
4 files changed, 23 insertions(+), 22 deletions(-)
diff --git a/ChangeLog b/ChangeLog
@@ -15,8 +15,9 @@ CVS code -
that make use of a smaller number. Changes to window_init(),
nanoget_repaint(), titlebar(), statusbar(), and
get_page_start(). (DLR)
- - Move xplustabs(), actual_x(), strnlenpt(), and strlenpt() from
- winio.c to utils.c, as they're really utility functions. (DLR)
+ - Move get_page_start(), xplustabs(), actual_x(), strnlenpt(),
+ and strlenpt() from winio.c to utils.c, as they're really
+ utility functions. (DLR)
- Move functions specific to the statusbar prompt to their own
source file, and adjust related variables accordingly. New
file prompt.c; changes to do_statusbar_input(),
diff --git a/src/proto.h b/src/proto.h
@@ -604,6 +604,7 @@ void *nrealloc(void *ptr, size_t howmuch);
char *mallocstrncpy(char *dest, const char *src, size_t n);
char *mallocstrcpy(char *dest, const char *src);
char *mallocstrassn(char *dest, char *src);
+size_t get_page_start(size_t column);
size_t xplustabs(void);
size_t actual_x(const char *s, size_t column);
size_t strnlenpt(const char *s, size_t maxlen);
@@ -670,7 +671,6 @@ void set_modified(void);
void statusbar(const char *msg, ...);
void bottombars(const shortcut *s);
void onekey(const char *keystroke, const char *desc, size_t len);
-size_t get_page_start(size_t column);
void reset_cursor(void);
void edit_draw(const filestruct *fileptr, const char *converted, int
line, size_t start);
diff --git a/src/utils.c b/src/utils.c
@@ -395,6 +395,20 @@ char *mallocstrassn(char *dest, char *src)
return src;
}
+/* nano scrolls horizontally within a line in chunks. Return the column
+ * number of the first character displayed in the edit window when the
+ * cursor is at the given column. Note that (0 <= column -
+ * get_page_start(column) < COLS). */
+size_t get_page_start(size_t column)
+{
+ if (column == 0 || column < COLS - 1)
+ return 0;
+ else if (COLS > 9)
+ return column - 7 - (column - 7) % (COLS - 8);
+ else
+ return column - (COLS - 2);
+}
+
/* Return the placewewant associated with current_x, i.e, the zero-based
* column position of the cursor. The value will be no smaller than
* current_x. */
@@ -403,9 +417,9 @@ size_t xplustabs(void)
return strnlenpt(openfile->current->data, openfile->current_x);
}
-/* actual_x() gives the index in s of the character displayed at the
- * given column. That is, actual_x() is the largest value such that
- * strnlenpt(s, actual_x(s, column)) <= column. */
+/* Return the index in s of the character displayed at the given column,
+ * i.e, the largest value such that strnlenpt(s, actual_x(s, column)) <=
+ * column. */
size_t actual_x(const char *s, size_t column)
{
size_t i = 0;
diff --git a/src/winio.c b/src/winio.c
@@ -2185,22 +2185,8 @@ void onekey(const char *keystroke, const char *desc, size_t len)
}
}
-/* nano scrolls horizontally within a line in chunks. This function
- * returns the column number of the first character displayed in the
- * edit window when the cursor is at the given column. Note that (0 <=
- * column - get_page_start(column) < COLS). */
-size_t get_page_start(size_t column)
-{
- if (column == 0 || column < COLS - 1)
- return 0;
- else if (COLS > 9)
- return column - 7 - (column - 7) % (COLS - 8);
- else
- return column - (COLS - 2);
-}
-
-/* Resets current_y, based on the position of current, and puts the
- * cursor in the edit window at (current_y, current_x). */
+/* Reset current_y, based on the position of current, and put the cursor
+ * in the edit window at (current_y, current_x). */
void reset_cursor(void)
{
/* If we haven't opened any files yet, put the cursor in the top
