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treebox - allow treebox node to be hidden

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This commit is contained in:
mixael
2020-01-23 01:24:19 +03:00
parent e4d152706e
commit aa2bfaebaa
3 changed files with 104 additions and 28 deletions
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38
include/nana/gui/widgets/detail/tree_cont.hpp
View File

@@ -340,31 +340,37 @@ namespace detail
}
}
template<typename PredAllowChild>
unsigned child_size_if(const ::std::string& key, PredAllowChild pac) const
template<typename PredAllowChild, typename PredAllowNode>
unsigned child_size_if(const ::std::string& key, PredAllowChild pac, PredAllowNode pan) const
{
auto node = _m_locate(key);
return (node ? child_size_if<PredAllowChild>(*node, pac) : 0);
return (node ? child_size_if<PredAllowChild, PredAllowNode>(*node, pac, pan) : 0);
}
template<typename PredAllowChild>
unsigned child_size_if(const node_type& node, PredAllowChild pac) const
template<typename PredAllowChild, typename PredAllowNode>
unsigned child_size_if(const node_type& node, PredAllowChild pac, PredAllowNode pan) const
{
unsigned size = 0;
const node_type* pnode = node.child;
while(pnode)
{
if (!pan(*pnode))
{
pnode = pnode->next;
continue;
}
++size;
if(pnode->child && pac(*pnode))
size += child_size_if<PredAllowChild>(*pnode, pac);
size += child_size_if<PredAllowChild>(*pnode, pac, pan);
pnode = pnode->next;
}
return size;
}
template<typename PredAllowChild>
std::size_t distance_if(const node_type * node, PredAllowChild pac) const
template<typename PredAllowChild, typename PredAllowNode>
std::size_t distance_if(const node_type * node, PredAllowChild pac, PredAllowNode pan) const
{
if(nullptr == node) return 0;
const node_type * iterator = root_.child;
@@ -374,6 +380,12 @@ namespace detail
while(iterator && iterator != node)
{
if (!pan(*iterator))
{
iterator = iterator->next;
continue;
}
++off;
if(iterator->child && pac(*iterator))
@@ -393,8 +405,8 @@ namespace detail
return off;
}
template<typename PredAllowChild>
node_type* advance_if(node_type* node, std::size_t off, PredAllowChild pac)
template<typename PredAllowChild, typename PredAllowNode>
node_type* advance_if(node_type* node, std::size_t off, PredAllowChild pac, PredAllowNode pan)
{
if(nullptr == node) node = root_.child;
@@ -402,6 +414,12 @@ namespace detail
while(node && off)
{
if (!pan(*node))
{
node = node->next;
continue;
}
--off;
if(node->child && pac(*node))
{

8
include/nana/gui/widgets/treebox.hpp
View File

@@ -117,6 +117,7 @@ namespace nana
::std::string text;
nana::any value;
bool expanded;
bool hidden;
checkstate checked;
::std::string img_idstr;
};
@@ -218,6 +219,12 @@ namespace nana
/// Select the node, and returns itself..
item_proxy& select(bool);
/// Return true when the node is hidden.
bool hidden() const;
/// Hide the node, and returns itself.
item_proxy& hide(bool);
/// Return the icon.
const ::std::string& icon() const;
@@ -343,6 +350,7 @@ namespace nana
basic_event<arg_treebox> checked; ///< a user checks or unchecks a node
basic_event<arg_treebox> selected; ///< a user selects or unselects a node
basic_event<arg_treebox> hovered; ///< a user moves the cursor over a node
basic_event<arg_treebox> hidden; ///< a user hides or shows a node
};
}//end namespace treebox
}//end namespace drawerbase