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Add column_title_pressed signal to Tree node 

The Tree node column/table form is missing the ability to
capture column title clicks easily.

Adding this functionality will give us the ability to
create functions such as sort by column, which is a common
table manipulation ability in games/apps.

https://godotengine.org/qa/7699
This commit is contained in:
yanorax 2017-05-17 20:55:55 +10:00
parent 98a3296702
commit 7b00ad22b9
1 changed files with 21 additions and 0 deletions
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21
scene/gui/tree.cpp
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@ -2214,6 +2214,26 @@ void Tree::_gui_input(InputEvent p_event) {
if (b.button_index == BUTTON_LEFT) {
Ref<StyleBox> bg = cache.bg;
Point2 pos = Point2(b.x, b.y) - bg->get_offset();
if (show_column_titles) {
pos.y -= _get_title_button_height();
if (pos.y < 0) {
pos.x += cache.offset.x;
int len = 0;
for (int i = 0; i < columns.size(); i++) {
len += get_column_width(i);
if (pos.x < len) {
emit_signal("column_title_pressed", i);
break;
}
}
}
}
if (single_select_defer) {
select_single_item(single_select_defer, root, single_select_defer_column);
single_select_defer = NULL;
@ -3456,6 +3476,7 @@ void Tree::_bind_methods() {
ADD_SIGNAL(MethodInfo("button_pressed", PropertyInfo(Variant::OBJECT, "item"), PropertyInfo(Variant::INT, "column"), PropertyInfo(Variant::INT, "id")));
ADD_SIGNAL(MethodInfo("custom_popup_edited", PropertyInfo(Variant::BOOL, "arrow_clicked")));
ADD_SIGNAL(MethodInfo("item_activated"));
ADD_SIGNAL(MethodInfo("column_title_pressed", PropertyInfo(Variant::INT, "column")));
BIND_CONSTANT(SELECT_SINGLE);
BIND_CONSTANT(SELECT_ROW);