list widget selection

[oftp] / src / tui_list.c

diff --git a/src/tui_list.c b/src/tui_list.c
index 4111d84..728522e 100644 (file)
--- a/src/tui_list.c
+++ b/src/tui_list.c
@@ -5,6 +5,7 @@
 #include "tui.h"
 #include "tuipriv.h"
 #include "tgfx.h"
+#include "util.h"
 
 static void free_list(struct tui_widget *w, void *cls);
 static void draw_list(struct tui_widget *w, void *cls);
@@ -24,6 +25,8 @@ struct tui_widget *tui_list(const char *title, int x, int y, int width, int heig
        w->height = height;
 
        w->entries = darr_alloc(0, sizeof *w->entries);
+       w->sel = -1;
+       w->dirty = 1;
 
        if(cbfunc) {
                tui_set_callback((struct tui_widget*)w, TUI_ONMODIFY, cbfunc, cbdata);
@@ -35,32 +38,164 @@ struct tui_widget *tui_list(const char *title, int x, int y, int width, int heig
 
 static void free_list(struct tui_widget *w, void *cls)
 {
-       darr_free(((struct tui_list*)w)->entries);
+       struct tui_list *wl = (struct tui_list*)w;
+
+       tui_clear_list(w);
+       darr_free(wl->entries);
 }
 
 
 void tui_clear_list(struct tui_widget *w)
 {
+       int i;
        struct tui_list *wl = (struct tui_list*)w;
        assert(wl->type == TUI_LIST);
+
+       for(i=0; i<darr_size(wl->entries); i++) {
+               free(wl->entries[i]);
+       }
        darr_clear(wl->entries);
+       wl->dirty = 1;
 }
 
 void tui_add_list_item(struct tui_widget *w, const char *text)
 {
+       char *str;
+       struct tui_list *wl = (struct tui_list*)w;
+       assert(wl->type == TUI_LIST);
+       str = strdup_nf(text);
+       darr_push(wl->entries, &str);
+       wl->dirty = 1;
+}
+
+int tui_num_list_items(struct tui_widget *w)
+{
+       struct tui_list *wl = (struct tui_list*)w;
+       assert(wl->type == TUI_LIST);
+       return darr_size(wl->entries);
+}
+
+int tui_list_select(struct tui_widget *w, int idx)
+{
+       int offs, nelem;
+       struct tui_list *wl = (struct tui_list*)w;
+       assert(wl->type == TUI_LIST);
+
+       if(idx == wl->sel) {
+               return 0;       /* no change */
+       }
+
+       if(idx < 0) {
+               wl->sel = -1;
+               return 0;
+       }
+       if(idx >= (nelem = darr_size(wl->entries))) {
+               return -1;
+       }
+       wl->sel = idx;
+
+       if(idx < wl->view_offs || idx >= wl->view_offs + wl->height) {
+               offs = idx - wl->height / 2;
+               if(offs + wl->height >= nelem) {
+                       offs = nelem - wl->height;
+               }
+               if(offs < 0) {
+                       offs = 0;
+               }
+               wl->view_offs = offs;
+       }
+
+       wl->dirty = 1;
+       return 0;
+}
+
+int tui_get_list_sel(struct tui_widget *w)
+{
+       struct tui_list *wl = (struct tui_list*)w;
+       assert(wl->type == TUI_LIST);
+       return wl->sel;
+}
+
+int tui_list_sel_next(struct tui_widget *w)
+{
+       int nelem;
+       struct tui_list *wl = (struct tui_list*)w;
+       assert(wl->type == TUI_LIST);
+
+       nelem = darr_size(wl->entries);
+
+       if(wl->sel + 1 >= nelem) {
+               return -1;
+       }
+
+       if(++wl->sel - wl->view_offs >= wl->height) {
+               wl->view_offs = wl->sel - wl->height;
+       }
+       wl->dirty = 1;
+       return 0;
+}
+
+int tui_list_sel_prev(struct tui_widget *w)
+{
+       struct tui_list *wl = (struct tui_list*)w;
+       assert(wl->type == TUI_LIST);
+
+       if(wl->sel <= 0) {
+               return -1;
+       }
+       if(--wl->sel < wl->view_offs) {
+               wl->view_offs = wl->sel;
+       }
+       wl->dirty = 1;
+       return 0;
+}
+
+int tui_list_sel_start(struct tui_widget *w)
+{
        struct tui_list *wl = (struct tui_list*)w;
        assert(wl->type == TUI_LIST);
-       darr_push(wl->entries, &text);
+
+       wl->sel = 0;
+       wl->view_offs = 0;
+       wl->dirty = 1;
+       return 0;
+}
+
+int tui_list_sel_end(struct tui_widget *w)
+{
+       int nelem;
+       struct tui_list *wl = (struct tui_list*)w;
+       assert(wl->type == TUI_LIST);
+
+       nelem = darr_size(wl->entries);
+
+       wl->sel = nelem - 1;
+       wl->view_offs = nelem - wl->height;
+       if(wl->view_offs < 0) wl->view_offs = 0;
+       wl->dirty = 1;
+       return 0;
+}
+
+void tui_sort_list(struct tui_widget *w, int (*cmpfunc)(const void*, const void*))
+{
+       struct tui_list *wl = (struct tui_list*)w;
+       assert(wl->type == TUI_LIST);
+
+       if(!cmpfunc) {
+               cmpfunc = (int (*)(const void*, const void*))strcmp;
+       }
+       qsort(wl->entries, darr_size(wl->entries), sizeof *wl->entries, cmpfunc);
 }
 
 static void draw_list(struct tui_widget *w, void *cls)
 {
-       int i, x, y, num;
+       int i, x, y, num, idx;
        struct tui_list *wl = (struct tui_list*)w;
 
        tui_wtoscr(w, 0, 0, &x, &y);
 
        tg_bgcolor(TGFX_BLUE);
+       tg_fgcolor(TGFX_CYAN);
        tg_rect(wl->title, x, y, wl->width, wl->height, TGFX_FRAME);
 
        num = darr_size(wl->entries);
@@ -70,6 +205,18 @@ static void draw_list(struct tui_widget *w, void *cls)
 
        x++;
        for(i=0; i<num; i++) {
-               tg_text(x, ++y, "%s", wl->entries[i]);
+               idx = i + wl->view_offs;
+               if(idx == wl->sel) {
+                       tg_bgcolor(TGFX_CYAN);
+                       tg_fgcolor(TGFX_BLUE);
+
+                       tg_rect(0, x, ++y, wl->width-2, 1, 0);
+                       tg_text(x, y, "%s", wl->entries[idx]);
+
+                       tg_bgcolor(TGFX_BLUE);
+                       tg_fgcolor(TGFX_CYAN);
+               } else {
+                       tg_text(x, ++y, "%s", wl->entries[idx]);
+               }
        }
 }