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ncmenu_section: add enabled_item_count flag #1057

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nick black 2020-10-14 03:47:41 -04:00 committed by Nick Black
parent 0676101811
commit 2dc1b89fbd
2 changed files with 14 additions and 19 deletions
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1
src/lib/internal.h
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@ -170,6 +170,7 @@ typedef struct ncmenu_int_section {
int bodycols; // column width of longest item
int itemselected; // current item selected, -1 for no selection
int shortcut_offset; // column offset within name of shortcut EGC
int enabled_item_count; // number of enabled items: section is disabled iff 0
} ncmenu_int_section;
typedef struct ncfdplane {

32
src/lib/menu.c
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@ -81,6 +81,7 @@ dup_menu_section(ncmenu_int_section* dst, const struct ncmenu_section* src){
// we must reject any section which is entirely separators
bool gotitem = false;
dst->itemcount = 0;
dst->enabled_item_count = 0;
dst->items = malloc(sizeof(*dst->items) * src->itemcount);
if(dst->items == NULL){
return -1;
@ -114,6 +115,7 @@ dup_menu_section(ncmenu_int_section* dst, const struct ncmenu_section* src){
}
++dst->itemcount;
}
dst->enabled_item_count = dst->itemcount;
if(!gotitem){
while(dst->itemcount){
free(dst->items[--dst->itemcount].desc);
@ -452,36 +454,26 @@ int ncmenu_rollup(ncmenu* n){
}
int ncmenu_nextsection(ncmenu* n){
int nextsection = n->unrolledsection + 1;
if(nextsection){
ncmenu_rollup(n);
if(nextsection == n->sectioncount){
nextsection = 0;
}
}
if(n->sections[nextsection].name == NULL){
int nextsection = n->unrolledsection;
// FIXME probably best to detect cycles
do{
if(++nextsection == n->sectioncount){
nextsection = 0;
}
}
}while(n->sections[nextsection].name == NULL ||
n->sections[nextsection].enabled_item_count == 0);
return ncmenu_unroll(n, nextsection);
}
int ncmenu_prevsection(ncmenu* n){
int prevsection = n->unrolledsection;
if(n->unrolledsection < 0){
prevsection = 1;
}else{
ncmenu_rollup(n);
}
if(--prevsection == -1){
prevsection = n->sectioncount - 1;
}
if(n->sections[prevsection].name == NULL){
// FIXME probably best to detect cycles
do{
if(--prevsection < 0){
prevsection = n->sectioncount - 1;
}
}
}while(n->sections[prevsection].name == NULL ||
n->sections[prevsection].enabled_item_count == 0);
return ncmenu_unroll(n, prevsection);
}
@ -492,6 +484,7 @@ int ncmenu_nextitem(ncmenu* n){
}
}
ncmenu_int_section* sec = &n->sections[n->unrolledsection];
// FIXME probably best to detect cycles
do{
if(++sec->itemselected == sec->itemcount){
sec->itemselected = 0;
@ -507,6 +500,7 @@ int ncmenu_previtem(ncmenu* n){
}
}
ncmenu_int_section* sec = &n->sections[n->unrolledsection];
// FIXME probably best to detect cycles
do{
if(sec->itemselected-- == 0){
sec->itemselected = sec->itemcount - 1;