mirrors
/
nano
mirror of git://git.sv.gnu.org/nano.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

calculate width in browser_init(), as it's more consistent 

git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@3741 35c25a1d-7b9e-4130-9fde-d3aeb78583b8
This commit is contained in:
David Lawrence Ramsey 2006-07-05 02:05:24 +00:00
parent b520d509cc
commit 2f7c1a0613
3 changed files with 66 additions and 77 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
ChangeLog
View File

@ -20,12 +20,8 @@ CVS code -
browser_init()
- Fix off-by-one error when calculating longest that kept the
rightmost column of the screen from being used. (DLR)
- browser_set_width()
- New function used to calculate width independently of
browser_refresh(). This eliminates the need for do_browser()
to call browser_refresh() in one place if the initially
selected file is not at the beginning of the list, and in
another place if it is. (DLR)
- Calculate width here instead of in browser_refresh(), as it's
more consistent. (DLR)
browser_refresh()
- Simplify. (DLR)
- Fix problems where translated versions of "(dir)" could be

134
src/browser.c
View File

@ -35,9 +35,7 @@ static char **filelist = NULL;
static size_t filelist_len = 0;
/* The number of files in the list. */
static int width = 0;
/* The number of files that we can display per line. This is
* calculated via browser_set_width(), which should be called
* before doing anything that uses width. */
/* The number of files that we can display per line. */
static int longest = 0;
/* The number of columns in the longest filename in the list. */
static size_t selected = 0;
@ -74,15 +72,14 @@ char *do_browser(char *path, DIR *dir)
change_browser_directory:
/* We go here after the user selects a new directory. */
/* Start with no key pressed. */
kbinput = ERR;
width = 0;
selected = 0;
path = mallocstrassn(path, get_full_path(path));
assert(path != NULL && path[strlen(path) - 1] == '/');
/* Get the file list, and set longest in the process. */
/* Get the file list, and set longest and width in the process. */
browser_init(path, dir);
assert(filelist != NULL);
@ -97,19 +94,23 @@ char *do_browser(char *path, DIR *dir)
free(prev_dir);
prev_dir = NULL;
}
/* Otherwise, select the first file or directory in the list. */
} else
selected = 0;
titlebar(path);
while (!abort) {
size_t fileline;
struct stat st;
int i;
size_t fileline = selected / width;
/* The line number the selected file is on. */
size_t old_selected = (size_t)-1;
/* The selected file we had before the current selected
* file. */
struct stat st;
int i;
char *new_path;
/* The path we switch to at the "Go to Directory"
* prompt. */
/* Display the file list if we don't have a key, or if the
* selected file has changed, and set width in the process. */
@ -119,9 +120,6 @@ char *do_browser(char *path, DIR *dir)
kbinput = get_kbinput(edit, &meta_key, &func_key);
parse_browser_input(&kbinput, &meta_key, &func_key);
/* Get the line number of the selected file. */
fileline = selected / width;
switch (kbinput) {
#ifndef DISABLE_MOUSE
case KEY_MOUSE:
@ -435,18 +433,29 @@ char *do_browse_from(const char *inpath)
}
/* Set filelist to the list of files contained in the directory path,
* set filelist_len to the number of files in that list, and set longest
* to the width in columns of the longest filename in that list, at
* least 15 and at most COLS. We need at least 15 columns to display
* ".. (parent dir)", as Pico does. Assume path exists and is a
* directory. */
* set filelist_len to the number of files in that list, set longest to
* the width in columns of the longest filename in that list (at least
* 15 and at most COLS), and set width to the number of files that we
* can display per line. longest needs to be at least 15 columns in
* order to hold ".. (parent dir)", as Pico does. Assume path exists
* and is a directory. */
void browser_init(const char *path, DIR *dir)
{
const struct dirent *nextdir;
size_t i = 0, path_len;
size_t i = 0;
size_t path_len = strlen(path);
int col = 0;
/* The maximum number of columns that the filenames will take
* up. */
int line = 0;
/* The maximum number of lines that the filenames will take
* up. */
int filesperline = 0;
/* The number of files that we can display per line. */
assert(dir != NULL);
assert(path != NULL && path[strlen(path) - 1] == '/' && dir != NULL);
/* Set longest to zero, just before we initialize it. */
longest = 0;
while ((nextdir = readdir(dir)) != NULL) {
@ -456,14 +465,15 @@ void browser_init(const char *path, DIR *dir)
if (strcmp(nextdir->d_name, ".") == 0)
continue;
i++;
d_len = strlenpt(nextdir->d_name);
if (d_len > longest)
longest = (d_len > COLS) ? COLS : d_len;
i++;
}
filelist_len = i;
rewinddir(dir);
/* Put 10 columns' worth of blank space between columns of filenames
@ -472,8 +482,6 @@ void browser_init(const char *path, DIR *dir)
filelist = (char **)nmalloc(filelist_len * sizeof(char *));
path_len = strlen(path);
i = 0;
while ((nextdir = readdir(dir)) != NULL && i < filelist_len) {
@ -483,6 +491,7 @@ void browser_init(const char *path, DIR *dir)
filelist[i] = charalloc(path_len + strlen(nextdir->d_name) + 1);
sprintf(filelist[i], "%s%s", path, nextdir->d_name);
i++;
}
@ -490,6 +499,7 @@ void browser_init(const char *path, DIR *dir)
* first time we scanned and the second. i is the actual length of
* filelist, so record it. */
filelist_len = i;
closedir(dir);
/* Make sure longest is between 15 and COLS. */
@ -497,6 +507,36 @@ void browser_init(const char *path, DIR *dir)
longest = 15;
if (longest > COLS)
longest = COLS;
/* Set width to zero, just before we initialize it. */
width = 0;
for (i = 0; i < filelist_len && line < editwinrows; i++) {
/* Calculate the number of columns one filename will take up. */
col += longest;
filesperline++;
/* Add some space between the columns. */
col += 2;
/* If the next entry isn't going to fit on the current line,
* move to the next line. */
if (col > COLS - longest) {
line++;
col = 0;
/* If width isn't initialized yet, and we've taken up more
* than one line, it means that width is equal to
* filesperline. */
if (width == 0)
width = filesperline;
}
}
/* If width isn't initialized yet, and we've taken up only one line,
* it means that width is equal to (COLS % longest). */
if (width == 0)
width = COLS % longest;
}
/* Determine the shortcut key corresponding to the values of kbinput
@ -542,49 +582,6 @@ void parse_browser_input(int *kbinput, bool *meta_key, bool *func_key)
}
}
/* Calculate the number of files that we can display per line, and set
* width to it. It will always be at least one. */
void browser_set_width(void)
{
size_t i;
int col = 0;
/* The maximum number of columns that the filenames will take
* up. */
int line = 0;
/* The maximum number of lines that the filenames will take
* up. */
int filesperline = 0;
/* The number of files that we can display per line. */
width = 0;
for (i = 0; i < filelist_len && line < editwinrows; i++) {
/* Calculate the number of columns one filename will take up. */
col += longest;
filesperline++;
/* Add some space between the columns. */
col += 2;
/* If the next entry isn't going to fit on the current line,
* move to the next line. */
if (col > COLS - longest) {
line++;
col = 0;
/* We've taken up at least one line, which means that width
* is equivalent to filesperline, so set it. */
if (width == 0)
width = filesperline;
}
}
/* We haven't taken up at least one line, which means that width is
* equivalent to (COLS % longest), so set it. */
if (width == 0)
width = COLS % longest;
}
/* Set width to the number of files that we can display per line, if
* necessary, and display the list of files. */
void browser_refresh(void)
@ -603,9 +600,6 @@ void browser_refresh(void)
if (uimax_digits == -1)
uimax_digits = digits(UINT_MAX);
if (width == 0)
browser_set_width();
blank_edit();
wmove(edit, 0, 0);

1
src/proto.h
View File

@ -147,7 +147,6 @@ char *do_browser(char *path, DIR *dir);
char *do_browse_from(const char *inpath);
void browser_init(const char *path, DIR *dir);
void parse_browser_input(int *kbinput, bool *meta_key, bool *func_key);
void browser_set_width(void);
void browser_refresh(void);
bool browser_select_filename(const char *needle);
int filesearch_init(void);