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Add ItemStack:get_description() to get tooltip (#8847)
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p-ouellette authored and sfan5 committed Aug 24, 2019
1 parent efbac7e commit 008b80f
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Showing 6 changed files with 33 additions and 22 deletions.
1 change: 1 addition & 0 deletions doc/lua_api.txt
Original file line number Diff line number Diff line change
Expand Up @@ -5254,6 +5254,7 @@ an itemstring, a table or `nil`.
* `get_metadata()`: (DEPRECATED) Returns metadata (a string attached to an item
stack).
* `set_metadata(metadata)`: (DEPRECATED) Returns true.
* `get_description()`: returns the description shown in inventory list tooltips.
* `clear()`: removes all items from the stack, making it empty.
* `replace(item)`: replace the contents of this stack.
* `item` can also be an itemstring or table.
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30 changes: 8 additions & 22 deletions src/gui/guiFormSpecMenu.cpp
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Expand Up @@ -2844,37 +2844,23 @@ void GUIFormSpecMenu::drawList(const ListDrawSpec &s, int layer,
}

if (layer == 1) {
// Draw item stack
if (selected)
item.takeItem(m_selected_amount);

if (!item.empty()) {
// Draw item stack
drawItemStack(driver, m_font, item,
rect, &AbsoluteClippingRect, m_client,
rotation_kind);
}

// Draw tooltip
std::wstring tooltip_text;
if (hovering && !m_selected_item) {
const std::string &desc = item.metadata.getString("description");
if (desc.empty())
tooltip_text =
utf8_to_wide(item.getDefinition(m_client->idef()).description);
else
tooltip_text = utf8_to_wide(desc);

if (!item.name.empty()) {
if (tooltip_text.empty())
tooltip_text = utf8_to_wide(item.name);
else if (m_tooltip_append_itemname)
tooltip_text += utf8_to_wide("\n[" + item.name + "]");
// Draw tooltip
if (hovering && !m_selected_item) {
std::string tooltip = item.getDescription(m_client->idef());
if (m_tooltip_append_itemname)
tooltip += "\n[" + item.name + "]";
showTooltip(utf8_to_wide(tooltip), m_default_tooltip_color,
m_default_tooltip_bgcolor);
}
}
if (!tooltip_text.empty()) {
showTooltip(tooltip_text, m_default_tooltip_color,
m_default_tooltip_bgcolor);
}
}
}
}
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8 changes: 8 additions & 0 deletions src/inventory.cpp
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Expand Up @@ -246,6 +246,14 @@ std::string ItemStack::getItemString() const
return os.str();
}

std::string ItemStack::getDescription(IItemDefManager *itemdef) const
{
std::string desc = metadata.getString("description");
if (desc.empty())
desc = getDefinition(itemdef).description;
return desc.empty() ? name : desc;
}


ItemStack ItemStack::addItem(ItemStack newitem, IItemDefManager *itemdef)
{
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2 changes: 2 additions & 0 deletions src/inventory.h
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Expand Up @@ -47,6 +47,8 @@ struct ItemStack

// Returns the string used for inventory
std::string getItemString() const;
// Returns the tooltip
std::string getDescription(IItemDefManager *itemdef) const;

/*
Quantity methods
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11 changes: 11 additions & 0 deletions src/script/lua_api/l_item.cpp
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Expand Up @@ -175,6 +175,16 @@ int LuaItemStack::l_set_metadata(lua_State *L)
return 1;
}

// get_description(self)
int LuaItemStack::l_get_description(lua_State *L)
{
NO_MAP_LOCK_REQUIRED;
LuaItemStack *o = checkobject(L, 1);
std::string desc = o->m_stack.getDescription(getGameDef(L)->idef());
lua_pushstring(L, desc.c_str());
return 1;
}

// clear(self) -> true
int LuaItemStack::l_clear(lua_State *L)
{
Expand Down Expand Up @@ -470,6 +480,7 @@ const luaL_Reg LuaItemStack::methods[] = {
luamethod(LuaItemStack, get_meta),
luamethod(LuaItemStack, get_metadata),
luamethod(LuaItemStack, set_metadata),
luamethod(LuaItemStack, get_description),
luamethod(LuaItemStack, clear),
luamethod(LuaItemStack, replace),
luamethod(LuaItemStack, to_string),
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3 changes: 3 additions & 0 deletions src/script/lua_api/l_item.h
Original file line number Diff line number Diff line change
Expand Up @@ -66,6 +66,9 @@ class LuaItemStack : public ModApiBase {
// set_metadata(self, string)
static int l_set_metadata(lua_State *L);

// get_description(self)
static int l_get_description(lua_State *L);

// clear(self) -> true
static int l_clear(lua_State *L);

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