tweaks: move two more functions, to before the one that calls them
Benno Schulenberg
parent
ab08eebfc1
commit
413a83c2e2
184
src/browser.c
184
src/browser.c
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@ -39,6 +39,98 @@ static size_t longest = 0;
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static size_t selected = 0;
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/* The currently selected filename in the list; zero-based. */
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/* Set filelist to the list of files contained in the directory path,
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* set filelist_len to the number of files in that list, set longest to
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* the width in columns of the longest filename in that list (between 15
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* and COLS), and set width to the number of files that we can display
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* per screen row. And sort the list too. */
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void read_the_list(const char *path, DIR *dir)
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{
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const struct dirent *nextdir;
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size_t i = 0, path_len = strlen(path);
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longest = 0;
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/* Find the length of the longest filename in the current folder. */
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while ((nextdir = readdir(dir)) != NULL) {
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size_t name_len = breadth(nextdir->d_name);
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if (name_len > longest)
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longest = name_len;
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i++;
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}
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/* Put 10 characters' worth of blank space between columns of filenames
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* in the list whenever possible, as Pico does. */
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longest += 10;
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/* If needed, make room for ".. (parent dir)". */
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if (longest < 15)
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longest = 15;
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/* Make sure we're not wider than the window. */
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if (longest > COLS)
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longest = COLS;
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rewinddir(dir);
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free_chararray(filelist, filelist_len);
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filelist_len = i;
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filelist = nmalloc(filelist_len * sizeof(char *));
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i = 0;
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while ((nextdir = readdir(dir)) != NULL && i < filelist_len) {
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/* Don't show the "." entry. */
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if (strcmp(nextdir->d_name, ".") == 0)
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continue;
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filelist[i] = nmalloc(path_len + strlen(nextdir->d_name) + 1);
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sprintf(filelist[i], "%s%s", path, nextdir->d_name);
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i++;
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}
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/* Maybe the number of files in the directory changed between the
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* first time we scanned and the second. i is the actual length of
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* filelist, so record it. */
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filelist_len = i;
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/* Sort the list of names. */
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qsort(filelist, filelist_len, sizeof(char *), diralphasort);
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/* Calculate how many files fit on a line -- feigning room for two
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* spaces beyond the right edge, and adding two spaces of padding
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* between columns. */
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width = (COLS + 2) / (longest + 2);
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}
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/* Look for needle. If we find it, set selected to its location.
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* Note that needle must be an exact match for a file in the list. */
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void browser_select_dirname(const char *needle)
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{
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size_t looking_at = 0;
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for (; looking_at < filelist_len; looking_at++) {
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if (strcmp(filelist[looking_at], needle) == 0) {
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selected = looking_at;
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break;
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}
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}
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/* If the sought name isn't found, move the highlight so that the
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* changed selection will be noticed. */
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if (looking_at == filelist_len) {
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--selected;
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/* Make sure we stay within the available range. */
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if (selected >= filelist_len)
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selected = filelist_len - 1;
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}
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}
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/* Look for the given needle in the list of files. If forwards is TRUE,
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* search forward in the list; otherwise, search backward. */
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void findfile(const char *needle, bool forwards)
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@ -502,74 +594,6 @@ char *browse_in(const char *inpath)
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return browse(path);
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}
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/* Set filelist to the list of files contained in the directory path,
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* set filelist_len to the number of files in that list, set longest to
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* the width in columns of the longest filename in that list (between 15
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* and COLS), and set width to the number of files that we can display
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* per screen row. And sort the list too. */
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void read_the_list(const char *path, DIR *dir)
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{
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const struct dirent *nextdir;
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size_t i = 0, path_len = strlen(path);
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longest = 0;
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/* Find the length of the longest filename in the current folder. */
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while ((nextdir = readdir(dir)) != NULL) {
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size_t name_len = breadth(nextdir->d_name);
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if (name_len > longest)
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longest = name_len;
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i++;
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}
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/* Put 10 characters' worth of blank space between columns of filenames
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* in the list whenever possible, as Pico does. */
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longest += 10;
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/* If needed, make room for ".. (parent dir)". */
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if (longest < 15)
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longest = 15;
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/* Make sure we're not wider than the window. */
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if (longest > COLS)
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longest = COLS;
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rewinddir(dir);
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free_chararray(filelist, filelist_len);
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filelist_len = i;
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filelist = nmalloc(filelist_len * sizeof(char *));
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i = 0;
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while ((nextdir = readdir(dir)) != NULL && i < filelist_len) {
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/* Don't show the "." entry. */
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if (strcmp(nextdir->d_name, ".") == 0)
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continue;
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filelist[i] = nmalloc(path_len + strlen(nextdir->d_name) + 1);
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sprintf(filelist[i], "%s%s", path, nextdir->d_name);
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i++;
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}
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/* Maybe the number of files in the directory changed between the
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* first time we scanned and the second. i is the actual length of
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* filelist, so record it. */
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filelist_len = i;
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/* Sort the list of names. */
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qsort(filelist, filelist_len, sizeof(char *), diralphasort);
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/* Calculate how many files fit on a line -- feigning room for two
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* spaces beyond the right edge, and adding two spaces of padding
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* between columns. */
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width = (COLS + 2) / (longest + 2);
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}
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/* Display at most a screenful of filenames from the gleaned filelist. */
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void browser_refresh(void)
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{
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@ -699,30 +723,6 @@ void browser_refresh(void)
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wnoutrefresh(edit);
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}
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/* Look for needle. If we find it, set selected to its location.
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* Note that needle must be an exact match for a file in the list. */
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void browser_select_dirname(const char *needle)
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{
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size_t looking_at = 0;
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for (; looking_at < filelist_len; looking_at++) {
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if (strcmp(filelist[looking_at], needle) == 0) {
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selected = looking_at;
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break;
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}
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}
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/* If the sought name isn't found, move the highlight so that the
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* changed selection will be noticed. */
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if (looking_at == filelist_len) {
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--selected;
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/* Make sure we stay within the available range. */
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if (selected >= filelist_len)
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selected = filelist_len - 1;
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}
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}
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/* Strip one element from the end of path, and return the stripped path.
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* The returned string is dynamically allocated, and should be freed. */
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char *strip_last_component(const char *path)
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@ -189,9 +189,7 @@ typedef void (*functionptrtype)(void);
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/* Most functions in browser.c. */
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#ifdef ENABLE_BROWSER
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char *browse_in(const char *inpath);
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void read_the_list(const char *path, DIR *dir);
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void browser_refresh(void);
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void browser_select_dirname(const char *needle);
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char *strip_last_component(const char *path);
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#endif
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