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Implement optional item names #17

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Implement optional item names #17

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22 changes: 22 additions & 0 deletions layout.h
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Original file line number Diff line number Diff line change
Expand Up @@ -94,6 +94,9 @@ typedef struct lay_item_t {
lay_id next_sibling;
lay_vec4 margins;
lay_vec2 size;
#ifdef LAY_USE_NAMES
const char *name;
#endif // LAY_USE_NAMES
} lay_item_t;

typedef struct lay_context {
Expand Down Expand Up @@ -334,6 +337,11 @@ LAY_EXPORT void lay_append(lay_context *ctx, lay_id earlier, lay_id later);
// of as the last.
LAY_EXPORT void lay_push(lay_context *ctx, lay_id parent, lay_id child);

#ifdef LAY_USE_NAMES
LAY_EXPORT const char *lay_get_name(lay_context *ctx, lay_id item);
LAY_EXPORT void lay_set_name(lay_context *ctx, lay_id item, const char *name);
#endif // LAY_USE_NAMES

// Gets the size that was set with lay_set_size or lay_set_size_xy. The _xy
// version writes the output values to the specified addresses instead of
// returning the values in a lay_vec2.
Expand Down Expand Up @@ -667,6 +675,20 @@ void lay_push(lay_context *ctx, lay_id parent, lay_id new_child)
pchild->next_sibling = old_child;
}

#ifdef LAY_USE_NAMES
const char *lay_get_name(lay_context *ctx, lay_id item)
{
lay_item_t *pitem = lay_get_item(ctx, item);
return pitem->name;
}

void lay_set_name(lay_context *ctx, lay_id item, const char *name)
{
lay_item_t *pitem = lay_get_item(ctx, item);
pitem->name = name;
}
#endif // LAY_USE_NAMES

lay_vec2 lay_get_size(lay_context *ctx, lay_id item)
{
lay_item_t *pitem = lay_get_item(ctx, item);
Expand Down