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Add a layout function to a tree view.

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This allows the content to request redraws and notify the parent
container that it should (re)layout the contents.
This commit is contained in:
Mark de Wever 2010-02-14 19:36:32 +00:00
parent 76f25a7f68
commit 9d792f79a3
2 changed files with 20 additions and 0 deletions
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15
src/gui/widgets/tree_view.cpp
View File

@ -31,6 +31,7 @@ ttree_view::ttree_view(const std::vector<tnode_definition>& node_definitions)
: tscrollbar_container(2)
, node_definitions_(node_definitions)
, indention_step_size_(0)
, need_layout_(false)
, root_node_(new ttree_view_node(
"root"
, node_definitions_
@ -85,6 +86,8 @@ void ttree_view::child_populate_dirty_list(twindow& caller
// Inherited.
tscrollbar_container::child_populate_dirty_list(caller, call_stack);
layout();
assert(root_node_);
root_node_->impl_populate_dirty_list(caller, call_stack);
}
@ -94,6 +97,18 @@ bool ttree_view::empty() const
return root_node_->empty();
}
void ttree_view::layout()
{
if(need_layout_) {
root_node_->set_size(indention_step_size_
, get_origin()
, root_node_->get_size().x);
root_node_->set_visible_area(content_visible_area_);
need_layout_ = false;
}
}
namespace {
/**

5
src/gui/widgets/tree_view.hpp
View File

@ -107,12 +107,17 @@ private:
unsigned indention_step_size_;
bool need_layout_;
ttree_view_node* root_node_;
ttree_view_node* selected_item_;
boost::function<void ()> selection_change_callback_;
/** Layouts the children if needed. */
void layout();
/** Inherited from tcontainer_. */
virtual void finalize_setup();