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https://git.planet-casio.com/Lephenixnoir/JustUI.git
synced 2024-12-28 04:23:40 +01:00
jfileselect: show file size + sort folders first
This commit is contained in:
Lephenixnoir
parent
4e01a99b0b
commit
9a70a6398e
2 changed files with 157 additions and 68 deletions
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@ -27,13 +27,14 @@ typedef struct {
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/* Folder currently being browsed */
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char *path;
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/* Corresponding directory stream */
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DIR *dp;
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/* Entry previously validated (with EXE) */
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/* List of entries */
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void *entries;
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/* Number of entries in the current folder */
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int entry_count;
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/* Full path to file last selected with EXE */
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char *selected_file;
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/* Number of entries in the current folder */
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int folder_entries;
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/* Current cursor position (0 .. folder_entries-1) */
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int16_t cursor;
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/* Current scroll position */
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@ -43,6 +44,8 @@ typedef struct {
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/* Additional pixels of spacing per line (base is font->height) */
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int8_t line_spacing;
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/* Whether to show the file size on the right */
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bool show_file_size;
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/* Rendering font */
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font_t const *font;
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@ -84,5 +87,6 @@ char const *jfileselect_current_folder(jfileselect *fs);
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/* Trivial properties */
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void jfileselect_set_font(jfileselect *fs, font_t const *font);
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void jfileselect_set_line_spacing(jfileselect *fs, int line_spacing);
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void jfileselect_set_show_file_size(jfileselect *fs, bool show_file_size);
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#endif /* _J_JFILESELECT */
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@ -8,6 +8,7 @@
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/stat.h>
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/* Type identifier for jfileselect */
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static int jfileselect_type_id = -1;
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@ -17,6 +18,20 @@ uint16_t JFILESELECT_LOADED;
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uint16_t JFILESELECT_VALIDATED;
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uint16_t JFILESELECT_CANCELED;
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/* We can try pretty hard to not duplicate the information held by the
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directory descriptor, which is already a full array of all entries on gint.
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However, the standard API behind readdir(3) does not allow us any complex
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operations; no filtering, no sorting, no accessing auxiliary data such as
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the file size. So we do this manually. */
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struct fileinfo {
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/* Entry name (owned by the structure) */
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char *name;
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/* File size in bytes if file, number of entries if folder */
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int size;
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/* Type from [struct dirent] */
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int type;
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};
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jfileselect *jfileselect_create(void *parent)
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{
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if(jfileselect_type_id < 0) return NULL;
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@ -27,16 +42,18 @@ jfileselect *jfileselect_create(void *parent)
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jwidget_init(&fs->widget, jfileselect_type_id, parent);
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fs->path = NULL;
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fs->dp = NULL;
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fs->entries = NULL;
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fs->entry_count = 0;
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fs->selected_file = NULL;
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fs->folder_entries = -1;
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fs->cursor = -1;
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fs->scroll = 0;
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fs->visible_lines = 0;
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fs->line_spacing = 4;
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fs->font = dfont_default();
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fs->show_file_size = false;
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return fs;
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}
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@ -48,6 +65,18 @@ static void count_visible_lines(jfileselect *fs)
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fs->visible_lines = ch / line_height;
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}
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static void set_finfo(jfileselect *fs, struct fileinfo *finfo, int n)
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{
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struct fileinfo *old = fs->entries;
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if(old) {
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for(int i = 0; i < fs->entry_count; i++)
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free(old[i].name);
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free(old);
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}
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fs->entries = finfo;
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fs->entry_count = n;
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}
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//---
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// Getters and setters
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//---
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@ -64,6 +93,12 @@ void jfileselect_set_line_spacing(jfileselect *fs, int line_spacing)
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count_visible_lines(fs);
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}
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void jfileselect_set_show_file_size(jfileselect *fs, bool show_file_size)
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{
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fs->show_file_size = show_file_size;
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fs->widget.update = true;
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}
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//---
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// Path and folder manipulation
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//---
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@ -97,58 +132,118 @@ static char *path_up(char const *path)
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return parent;
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}
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static int accept_entry(struct dirent *ent)
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static bool accept_entry(struct dirent *ent)
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{
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/* TODO: jfileselect: Programmable filter */
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if(!strcmp(ent->d_name, "@MainMem"))
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return 0;
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return false;
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if(!strcmp(ent->d_name, "SAVE-F"))
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return 0;
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return false;
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if(!strcmp(ent->d_name, "."))
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return 0;
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return false;
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if(!strcmp(ent->d_name, ".."))
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return 0;
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return 1;
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return false;
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return true;
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}
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struct dirent *read_nth_dir_entry(DIR *dp, int n)
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static int count_accepted_entries(DIR *dp)
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{
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struct dirent *entry = NULL;
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int n = 0;
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struct dirent *ent;
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rewinddir(dp);
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while((ent = readdir(dp)))
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n += accept_entry(ent);
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for(int i = 0; i <= n;) {
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entry = readdir(dp);
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if(!entry)
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return NULL;
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i += accept_entry(entry);
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}
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return entry;
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return n;
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}
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static bool load_folder(jfileselect *fs, char *path)
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static int compare_entries(void const *i1_0, void const *i2_0)
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{
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if(fs->dp)
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closedir(fs->dp);
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struct fileinfo const *i1 = i1_0, *i2 = i2_0;
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int d1 = (i1->type == DT_DIR);
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int d2 = (i2->type == DT_DIR);
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fs->dp = (DIR *)gint_world_switch(GINT_CALL(opendir, path));
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if(!fs->dp)
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/* Group directories first */
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if(d1 != d2)
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return d2 - d1;
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/* Then group by name */
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return strcmp(i1->name, i2->name);
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}
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static bool load_folder_switch(jfileselect *fs, char *path)
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{
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set_finfo(fs, NULL, 0);
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struct dirent *ent;
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DIR *dp = opendir(path);
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if(!dp)
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return false;
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/* Count entries */
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int n = count_accepted_entries(dp);
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/* Allocate memory for the fileinfo structures */
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struct fileinfo *finfo = malloc(n * sizeof *finfo);
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if(!finfo) {
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closedir(dp);
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return false;
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}
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/* Read the fileinfo structures */
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rewinddir(dp);
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for(int i = 0; i < n && (ent = readdir(dp));) {
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if(!accept_entry(ent))
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continue;
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finfo[i].name = strdup(ent->d_name);
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finfo[i].type = ent->d_type;
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finfo[i].size = -1;
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if(!finfo[i].name) {
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/* Profesionnal unwinding isn't it? */
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for(int j = 0; j < i; j++) free(finfo[j].name);
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free(finfo);
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closedir(dp);
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return false;
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}
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char *full_path = path_down(path, ent->d_name);
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if(full_path) {
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if(ent->d_type == DT_DIR) {
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DIR *sub = opendir(full_path);
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if(sub) {
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finfo[i].size = count_accepted_entries(sub);
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closedir(sub);
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}
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}
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else {
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struct stat st;
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if(stat(full_path, &st) >= 0)
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finfo[i].size = st.st_size;
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}
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}
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i++;
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}
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qsort(finfo, n, sizeof *finfo, compare_entries);
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closedir(dp);
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free(fs->path);
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fs->path = path;
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fs->folder_entries = 0;
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struct dirent *ent;
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while ((ent = readdir(fs->dp)))
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fs->folder_entries += accept_entry(ent);
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set_finfo(fs, finfo, n);
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fs->widget.update = true;
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jwidget_emit(fs, (jevent){ .type = JFILESELECT_LOADED });
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return true;
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}
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static bool load_folder(jfileselect *fs, char *path)
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{
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return gint_world_switch(GINT_CALL(load_folder_switch, (void *)fs, path));
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}
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bool jfileselect_browse(jfileselect *fs, char const *path)
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{
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char *path_copy = strdup(path);
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@ -198,42 +293,32 @@ static void jfileselect_poly_layout(void *fs0)
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static void jfileselect_poly_render(void *fs0, int x, int y)
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{
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jfileselect *fs = fs0;
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if(!fs->path || !fs->dp)
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if(!fs->path || !fs->entries)
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return;
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font_t const *old_font = dfont(fs->font);
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int line_height = fs->font->line_height + fs->line_spacing;
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int cw = jwidget_content_width(fs);
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struct fileinfo *finfo = fs->entries;
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rewinddir(fs->dp);
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struct dirent *ent;
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char const *entry_name;
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bool isfolder;
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for(int i = -fs->scroll; i < fs->visible_lines;) {
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for(int i = 0; i < fs->visible_lines && i < fs->entry_count; i++) {
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bool selected = (fs->cursor == fs->scroll + i);
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ent = readdir(fs->dp);
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if(!ent) break;
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if(!accept_entry(ent)) continue;
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entry_name = ent->d_name;
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isfolder = (ent->d_type == DT_DIR);
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if(i < 0) {
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i++;
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continue;
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}
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struct fileinfo *info = &finfo[fs->scroll + i];
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bool isfolder = (info->type == DT_DIR);
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int line_y = y + line_height * i;
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if(selected)
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drect(x, line_y, x + cw - 1, line_y + line_height - 1, C_BLACK);
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/* Round `line_spacing / 2` down so there is more spacing below */
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dprint(x+2, line_y + (fs->line_spacing + 0) / 2,
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selected ? C_WHITE : C_BLACK,
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"%s%s", entry_name, isfolder ? "/" : "");
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i++;
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int text_y = line_y + (fs->line_spacing + 0) / 2;
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int fg = selected ? C_WHITE : C_BLACK;
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dprint(x+2, text_y, fg, "%s%s", info->name, isfolder ? "/" : "");
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if(fs->show_file_size && info->size >= 0) {
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dprint_opt(x + cw - 3, text_y, fg, C_NONE, DTEXT_RIGHT, DTEXT_TOP,
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isfolder ? "%d entries" : "%d B", info->size);
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}
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}
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dfont(old_font);
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@ -242,7 +327,7 @@ static void jfileselect_poly_render(void *fs0, int x, int y)
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static bool jfileselect_poly_event(void *fs0, jevent e)
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{
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jfileselect *fs = fs0;
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if(!fs->path || !fs->dp)
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if(!fs->path || !fs->entries)
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return false;
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if(e.type == JWIDGET_KEY) {
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@ -257,17 +342,17 @@ static bool jfileselect_poly_event(void *fs0, jevent e)
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fs->cursor = ev.shift ? 0 : fs->cursor - 1;
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moved = true;
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}
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if(key == KEY_DOWN && fs->cursor < fs->folder_entries - 1) {
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fs->cursor = ev.shift ? fs->folder_entries - 1 : fs->cursor + 1;
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if(key == KEY_DOWN && fs->cursor < fs->entry_count - 1) {
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fs->cursor = ev.shift ? fs->entry_count - 1 : fs->cursor + 1;
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moved = true;
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}
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if(fs->scroll > 0 && fs->cursor <= fs->scroll)
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fs->scroll = max(fs->cursor - 1, 0);
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if(fs->scroll + fs->visible_lines < fs->folder_entries
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if(fs->scroll + fs->visible_lines < fs->entry_count
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&& fs->cursor >= fs->scroll + fs->visible_lines - 2) {
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fs->scroll = min(fs->cursor - fs->visible_lines + 2,
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fs->folder_entries - fs->visible_lines);
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fs->entry_count - fs->visible_lines);
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}
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if(moved) {
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@ -289,9 +374,10 @@ static bool jfileselect_poly_event(void *fs0, jevent e)
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}
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}
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else if(key == KEY_EXE) {
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struct dirent *ent = read_nth_dir_entry(fs->dp, fs->cursor);
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if(ent->d_type == DT_DIR) {
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char *child = path_down(fs->path, ent->d_name);
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struct fileinfo *finfo = fs->entries;
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struct fileinfo *i = &finfo[fs->cursor];
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if(i->type == DT_DIR) {
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char *child = path_down(fs->path, i->name);
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if(child) {
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load_folder(fs, child);
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fs->cursor = 0;
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@ -300,7 +386,7 @@ static bool jfileselect_poly_event(void *fs0, jevent e)
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}
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}
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else {
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fs->selected_file = path_down(fs->path, ent->d_name);
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fs->selected_file = path_down(fs->path, i->name);
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if(fs->selected_file) {
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jwidget_emit(fs,(jevent){ .type = JFILESELECT_VALIDATED });
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return true;
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@ -317,8 +403,7 @@ static void jfileselect_poly_destroy(void *fs0)
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jfileselect *fs = fs0;
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free(fs->path);
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if(fs->dp)
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closedir(fs->dp);
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set_finfo(fs, NULL, 0);
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free(fs->selected_file);
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}
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