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-rw-r--r--core/core_string_names.cpp3
-rw-r--r--core/core_string_names.h3
-rw-r--r--core/object.cpp42
-rw-r--r--core/object.h6
-rw-r--r--editor/editor_node.cpp1
-rw-r--r--editor/property_editor.cpp54
-rw-r--r--editor/property_editor.h7
-rw-r--r--scene/gui/tree.cpp119
-rw-r--r--scene/gui/tree.h22
9 files changed, 235 insertions, 22 deletions
diff --git a/core/core_string_names.cpp b/core/core_string_names.cpp
index e35ac2b72c..0ed44b0cb7 100644
--- a/core/core_string_names.cpp
+++ b/core/core_string_names.cpp
@@ -44,4 +44,7 @@ CoreStringNames::CoreStringNames() {
_iter_next = StaticCString::create("_iter_next");
_iter_get = StaticCString::create("_iter_get");
get_rid = StaticCString::create("get_rid");
+#ifdef TOOLS_ENABLED
+ _sections_unfolded = StaticCString::create("_sections_unfolded");
+#endif
}
diff --git a/core/core_string_names.h b/core/core_string_names.h
index 6672772432..4b4f87a8f0 100644
--- a/core/core_string_names.h
+++ b/core/core_string_names.h
@@ -61,6 +61,9 @@ public:
StringName _iter_next;
StringName _iter_get;
StringName get_rid;
+#ifdef TOOLS_ENABLED
+ StringName _sections_unfolded;
+#endif
};
#endif // SCENE_STRING_NAMES_H
diff --git a/core/object.cpp b/core/object.cpp
index f20e93f9d7..d83b2d0c6e 100644
--- a/core/object.cpp
+++ b/core/object.cpp
@@ -419,6 +419,16 @@ void Object::set(const StringName &p_name, const Variant &p_value, bool *r_valid
if (r_valid)
*r_valid = true;
return;
+#ifdef TOOLS_ENABLED
+ } else if (p_name == CoreStringNames::get_singleton()->_sections_unfolded) {
+ Array arr = p_value;
+ for (int i = 0; i < arr.size(); i++) {
+ editor_section_folding.insert(arr[i]);
+ }
+ if (r_valid)
+ *r_valid = true;
+ return;
+#endif
} else {
//something inside the object... :|
bool success = _setv(p_name, p_value);
@@ -464,6 +474,16 @@ Variant Object::get(const StringName &p_name, bool *r_valid) const {
if (r_valid)
*r_valid = true;
return ret;
+#ifdef TOOLS_ENABLED
+ } else if (p_name == CoreStringNames::get_singleton()->_sections_unfolded) {
+ Array array;
+ for (Set<String>::Element *E = editor_section_folding.front(); E; E = E->next()) {
+ array.push_back(E->get());
+ }
+ if (r_valid)
+ *r_valid = true;
+ return array;
+#endif
} else {
//something inside the object... :|
bool success = _getv(p_name, ret);
@@ -516,6 +536,11 @@ void Object::get_property_list(List<PropertyInfo> *p_list, bool p_reversed) cons
if (!is_class("Script")) // can still be set, but this is for userfriendlyness
p_list->push_back(PropertyInfo(Variant::OBJECT, "script", PROPERTY_HINT_RESOURCE_TYPE, "Script", PROPERTY_USAGE_DEFAULT | PROPERTY_USAGE_STORE_IF_NONZERO));
+#ifdef TOOLS_ENABLED
+ if (editor_section_folding.size()) {
+ p_list->push_back(PropertyInfo(Variant::ARRAY, CoreStringNames::get_singleton()->_sections_unfolded, PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR));
+ }
+#endif
if (!metadata.empty())
p_list->push_back(PropertyInfo(Variant::DICTIONARY, "__meta__", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR | PROPERTY_USAGE_STORE_IF_NONZERO));
if (script_instance && !p_reversed) {
@@ -1571,6 +1596,23 @@ void Object::_clear_internal_resource_paths(const Variant &p_var) {
}
}
+#ifdef TOOLS_ENABLED
+void Object::editor_set_section_unfold(const String &p_section, bool p_unfolded) {
+
+ set_edited(true);
+ if (p_unfolded)
+ editor_section_folding.insert(p_section);
+ else
+ editor_section_folding.erase(p_section);
+}
+
+bool Object::editor_is_section_unfolded(const String &p_section) {
+
+ return editor_section_folding.has(p_section);
+}
+
+#endif
+
void Object::clear_internal_resource_paths() {
List<PropertyInfo> pinfo;
diff --git a/core/object.h b/core/object.h
index 83b03b9239..fabd10fa1f 100644
--- a/core/object.h
+++ b/core/object.h
@@ -430,6 +430,7 @@ private:
#ifdef TOOLS_ENABLED
bool _edited;
uint32_t _edited_version;
+ Set<String> editor_section_folding;
#endif
ScriptInstance *script_instance;
RefPtr script;
@@ -666,6 +667,11 @@ public:
_FORCE_INLINE_ void set_message_translation(bool p_enable) { _can_translate = p_enable; }
_FORCE_INLINE_ bool can_translate_messages() const { return _can_translate; }
+#ifdef TOOLS_ENABLED
+ void editor_set_section_unfold(const String &p_section, bool p_unfolded);
+ bool editor_is_section_unfolded(const String &p_section);
+#endif
+
void clear_internal_resource_paths();
Object();
diff --git a/editor/editor_node.cpp b/editor/editor_node.cpp
index 097c2977e8..8657deef03 100644
--- a/editor/editor_node.cpp
+++ b/editor/editor_node.cpp
@@ -5784,6 +5784,7 @@ EditorNode::EditorNode() {
property_editor = memnew(PropertyEditor);
property_editor->set_autoclear(true);
property_editor->set_show_categories(true);
+ property_editor->set_use_folding(true);
property_editor->set_v_size_flags(Control::SIZE_EXPAND_FILL);
property_editor->set_use_doc_hints(true);
property_editor->set_enable_capitalize_paths(bool(EDITOR_DEF("interface/capitalize_properties", true)));
diff --git a/editor/property_editor.cpp b/editor/property_editor.cpp
index 65ec697b73..86671f1c37 100644
--- a/editor/property_editor.cpp
+++ b/editor/property_editor.cpp
@@ -2696,20 +2696,20 @@ void PropertyEditor::_notification(int p_what) {
}
}
-TreeItem *PropertyEditor::get_parent_node(String p_path, HashMap<String, TreeItem *> &item_paths, TreeItem *root) {
+TreeItem *PropertyEditor::get_parent_node(String p_path, HashMap<String, TreeItem *> &item_paths, TreeItem *root, TreeItem *category) {
TreeItem *item = NULL;
if (p_path == "") {
- item = root;
+ item = category ? category : root;
} else if (item_paths.has(p_path)) {
item = item_paths.get(p_path);
} else {
//printf("path %s parent path %s - item name %s\n",p_path.ascii().get_data(),p_path.left( p_path.find_last("/") ).ascii().get_data(),p_path.right( p_path.find_last("/") ).ascii().get_data() );
- TreeItem *parent = get_parent_node(p_path.left(p_path.find_last("/")), item_paths, root);
+ TreeItem *parent = get_parent_node(p_path.left(p_path.find_last("/")), item_paths, root, NULL);
item = tree->create_item(parent);
String name = (p_path.find("/") != -1) ? p_path.right(p_path.find_last("/") + 1) : p_path;
@@ -2720,10 +2720,22 @@ TreeItem *PropertyEditor::get_parent_node(String p_path, HashMap<String, TreeIte
}
item->set_editable(0, false);
+ if (!subsection_selectable) {
+ item->set_expand_right(0, true);
+ }
item->set_selectable(0, subsection_selectable);
item->set_editable(1, false);
item->set_selectable(1, subsection_selectable);
+ if (use_folding) {
+ if (!obj->editor_is_section_unfolded(p_path)) {
+ updating_folding = true;
+ item->set_collapsed(true);
+ updating_folding = false;
+ }
+ item->set_metadata(0, p_path);
+ }
+
if (item->get_parent() == root) {
item->set_custom_bg_color(0, get_color("prop_subsection", "Editor"));
@@ -2935,17 +2947,21 @@ void PropertyEditor::update_tree() {
TreeItem *sep = tree->create_item(root);
current_category = sep;
String type = p.name;
- /*if (has_icon(type,"EditorIcons"))
- sep->set_icon(0,get_icon(type,"EditorIcons") );
+ //*
+ if (has_icon(type, "EditorIcons"))
+ sep->set_icon(0, get_icon(type, "EditorIcons"));
else
- sep->set_icon(0,get_icon("Object","EditorIcons") );
- print_line("CATEGORY: "+type);
- */
+ sep->set_icon(0, get_icon("Object", "EditorIcons"));
+
+ //*/
sep->set_text(0, type);
+ sep->set_expand_right(0, true);
sep->set_selectable(0, false);
sep->set_selectable(1, false);
sep->set_custom_bg_color(0, get_color("prop_category", "Editor"));
sep->set_custom_bg_color(1, get_color("prop_category", "Editor"));
+ sep->set_text_align(0, TreeItem::ALIGN_CENTER);
+ sep->set_disable_folding(true);
if (use_doc_hints) {
StringName type = p.name;
@@ -3005,7 +3021,7 @@ void PropertyEditor::update_tree() {
}
//printf("property %s\n",basename.ascii().get_data());
- TreeItem *parent = get_parent_node(path, item_path, current_category ? current_category : root);
+ TreeItem *parent = get_parent_node(path, item_path, root, current_category);
/*
if (parent->get_parent()==root)
parent=root;
@@ -3684,6 +3700,16 @@ void PropertyEditor::_draw_transparency(Object *t, const Rect2 &p_rect) {
tree->draw_rect(area, color);
}
+void PropertyEditor::_item_folded(Object *item_obj) {
+
+ if (updating_folding)
+ return;
+
+ TreeItem *item = item_obj->cast_to<TreeItem>();
+
+ obj->editor_set_section_unfold(item->get_metadata(0), !item->is_collapsed());
+}
+
void PropertyEditor::_item_selected() {
TreeItem *item = tree->get_selected();
@@ -4187,6 +4213,7 @@ void PropertyEditor::_bind_methods() {
ClassDB::bind_method("_item_edited", &PropertyEditor::_item_edited);
ClassDB::bind_method("_item_selected", &PropertyEditor::_item_selected);
+ ClassDB::bind_method("_item_folded", &PropertyEditor::_item_folded);
ClassDB::bind_method("_custom_editor_request", &PropertyEditor::_custom_editor_request);
ClassDB::bind_method("_custom_editor_edited", &PropertyEditor::_custom_editor_edited);
ClassDB::bind_method("_custom_editor_edited_field", &PropertyEditor::_custom_editor_edited_field, DEFVAL(""));
@@ -4292,11 +4319,18 @@ void PropertyEditor::set_subsection_selectable(bool p_selectable) {
update_tree();
}
+void PropertyEditor::set_use_folding(bool p_enable) {
+
+ use_folding = p_enable;
+ tree->set_hide_folding(false);
+}
+
PropertyEditor::PropertyEditor() {
_prop_edited = "property_edited";
hide_script = false;
+ use_folding = false;
undo_redo = NULL;
obj = NULL;
@@ -4329,6 +4363,7 @@ PropertyEditor::PropertyEditor() {
tree->connect("item_edited", this, "_item_edited", varray(), CONNECT_DEFERRED);
tree->connect("cell_selected", this, "_item_selected");
+ tree->connect("item_collapsed", this, "_item_folded");
tree->set_drag_forwarding(this);
@@ -4358,6 +4393,7 @@ PropertyEditor::PropertyEditor() {
show_categories = false;
refresh_countdown = 0;
use_doc_hints = false;
+ updating_folding = true;
use_filter = false;
subsection_selectable = false;
show_type_icons = EDITOR_DEF("interface/show_type_icons", false);
diff --git a/editor/property_editor.h b/editor/property_editor.h
index c02c301acf..47bd807c3f 100644
--- a/editor/property_editor.h
+++ b/editor/property_editor.h
@@ -190,6 +190,9 @@ class PropertyEditor : public Control {
bool use_filter;
bool subsection_selectable;
bool hide_script;
+ bool use_folding;
+
+ bool updating_folding;
HashMap<String, String> pending;
String selected_property;
@@ -206,7 +209,7 @@ class PropertyEditor : public Control {
void _item_selected();
void _item_edited();
- TreeItem *get_parent_node(String p_path, HashMap<String, TreeItem *> &item_paths, TreeItem *root);
+ TreeItem *get_parent_node(String p_path, HashMap<String, TreeItem *> &item_paths, TreeItem *root, TreeItem *category);
void set_item_text(TreeItem *p_item, int p_type, const String &p_name, int p_hint = PROPERTY_HINT_NONE, const String &p_hint_text = "");
@@ -244,6 +247,7 @@ class PropertyEditor : public Control {
void _resource_preview_done(const String &p_path, const Ref<Texture> &p_preview, Variant p_ud);
void _draw_transparency(Object *t, const Rect2 &p_rect);
+ void _item_folded(Object *item_obj);
UndoRedo *undo_redo;
@@ -285,6 +289,7 @@ public:
void set_subsection_selectable(bool p_selectable);
+ void set_use_folding(bool p_enable);
PropertyEditor();
~PropertyEditor();
};
diff --git a/scene/gui/tree.cpp b/scene/gui/tree.cpp
index d864d9fce7..12679c7ba8 100644
--- a/scene/gui/tree.cpp
+++ b/scene/gui/tree.cpp
@@ -622,6 +622,40 @@ bool TreeItem::is_custom_set_as_button(int p_column) const {
return cells[p_column].custom_button;
}
+void TreeItem::set_text_align(int p_column, TextAlign p_align) {
+ ERR_FAIL_INDEX(p_column, cells.size());
+ cells[p_column].text_align = p_align;
+ _changed_notify(p_column);
+}
+
+TreeItem::TextAlign TreeItem::get_text_align(int p_column) const {
+ ERR_FAIL_INDEX_V(p_column, cells.size(), ALIGN_LEFT);
+ return cells[p_column].text_align;
+}
+
+void TreeItem::set_expand_right(int p_column, bool p_enable) {
+
+ ERR_FAIL_INDEX(p_column, cells.size());
+ cells[p_column].expand_right = p_enable;
+ _changed_notify(p_column);
+}
+
+bool TreeItem::get_expand_right(int p_column) const {
+
+ ERR_FAIL_INDEX_V(p_column, cells.size(), false);
+ return cells[p_column].expand_right;
+}
+
+void TreeItem::set_disable_folding(bool p_disable) {
+
+ disable_folding = p_disable;
+ _changed_notify(0);
+}
+
+bool TreeItem::is_folding_disabled() const {
+ return disable_folding;
+}
+
void TreeItem::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_cell_mode", "column", "mode"), &TreeItem::set_cell_mode);
@@ -692,12 +726,19 @@ void TreeItem::_bind_methods() {
ClassDB::bind_method(D_METHOD("erase_button", "column", "button_idx"), &TreeItem::erase_button);
ClassDB::bind_method(D_METHOD("is_button_disabled", "column", "button_idx"), &TreeItem::is_button_disabled);
+ ClassDB::bind_method(D_METHOD("set_expand_right", "column", "enable"), &TreeItem::set_expand_right);
+ ClassDB::bind_method(D_METHOD("get_expand_right", "column"), &TreeItem::get_expand_right);
+
ClassDB::bind_method(D_METHOD("set_tooltip", "column", "tooltip"), &TreeItem::set_tooltip);
ClassDB::bind_method(D_METHOD("get_tooltip", "column"), &TreeItem::get_tooltip);
-
+ ClassDB::bind_method(D_METHOD("set_text_align", "column", "text_align"), &TreeItem::set_text_align);
+ ClassDB::bind_method(D_METHOD("get_text_align", "column"), &TreeItem::get_text_align);
ClassDB::bind_method(D_METHOD("move_to_top"), &TreeItem::move_to_top);
ClassDB::bind_method(D_METHOD("move_to_bottom"), &TreeItem::move_to_bottom);
+ ClassDB::bind_method(D_METHOD("set_disable_folding", "disable"), &TreeItem::set_disable_folding);
+ ClassDB::bind_method(D_METHOD("is_folding_disabled"), &TreeItem::is_folding_disabled);
+
BIND_CONSTANT(CELL_MODE_STRING);
BIND_CONSTANT(CELL_MODE_CHECK);
BIND_CONSTANT(CELL_MODE_RANGE);
@@ -724,6 +765,7 @@ TreeItem::TreeItem(Tree *p_tree) {
tree = p_tree;
collapsed = false;
+ disable_folding = false;
parent = 0; // parent item
next = 0; // next in list
@@ -894,6 +936,32 @@ int Tree::get_item_height(TreeItem *p_item) const {
void Tree::draw_item_rect(const TreeItem::Cell &p_cell, const Rect2i &p_rect, const Color &p_color) {
Rect2i rect = p_rect;
+ Ref<Font> font = cache.font;
+ String text = p_cell.text;
+ if (p_cell.suffix != String())
+ text += " " + p_cell.suffix;
+
+ int w = 0;
+ if (!p_cell.icon.is_null()) {
+ Size2i bmsize = p_cell.get_icon_size();
+
+ if (p_cell.icon_max_w > 0 && bmsize.width > p_cell.icon_max_w) {
+ bmsize.width = p_cell.icon_max_w;
+ }
+ w += bmsize.width + cache.hseparation;
+ }
+ w += font->get_string_size(text).width;
+
+ switch (p_cell.text_align) {
+ case TreeItem::ALIGN_LEFT:
+ break; //do none
+ case TreeItem::ALIGN_CENTER:
+ rect.position.x = MAX(0, (rect.size.width - w) / 2);
+ break; //do none
+ case TreeItem::ALIGN_RIGHT:
+ rect.position.x = MAX(0, (rect.size.width - w));
+ break; //do none
+ }
RID ci = get_canvas_item();
if (!p_cell.icon.is_null()) {
@@ -914,12 +982,6 @@ void Tree::draw_item_rect(const TreeItem::Cell &p_cell, const Rect2i &p_rect, co
rect.size.x-=Math::floor(rect.size.y/2);
*/
- Ref<Font> font = cache.font;
-
- String text = p_cell.text;
- if (p_cell.suffix != String())
- text += " " + p_cell.suffix;
-
rect.position.y += Math::floor((rect.size.y - font->get_height()) / 2.0) + font->get_ascent();
font->draw(ci, rect.position, text, p_color, rect.size.x);
}
@@ -970,7 +1032,7 @@ int Tree::draw_item(const Point2i &p_pos, const Point2 &p_draw_ofs, const Size2
if (!skip && (p_pos.y + label_h - cache.offset.y) > 0) {
- if (!hide_folding && p_item->childs) { //has childs, draw the guide box
+ if (!p_item->disable_folding && !hide_folding && p_item->childs) { //has childs, draw the guide box
Ref<Texture> arrow;
@@ -991,9 +1053,15 @@ int Tree::draw_item(const Point2i &p_pos, const Point2 &p_draw_ofs, const Size2
int font_ascent = font->get_ascent();
- int ofs = p_pos.x + (hide_folding ? cache.hseparation : cache.item_margin);
+ int ofs = p_pos.x + ((p_item->disable_folding || hide_folding) ? cache.hseparation : cache.item_margin);
+ int skip = 0;
for (int i = 0; i < columns.size(); i++) {
+ if (skip) {
+ skip--;
+ continue;
+ }
+
int w = get_column_width(i);
if (i == 0) {
@@ -1011,6 +1079,16 @@ int Tree::draw_item(const Point2i &p_pos, const Point2 &p_draw_ofs, const Size2
w -= cache.hseparation;
}
+ if (p_item->cells[i].expand_right) {
+
+ int plus = 1;
+ while (i + plus < columns.size() && !p_item->cells[i + plus].editable && p_item->cells[i + plus].mode == TreeItem::CELL_MODE_STRING && p_item->cells[i + plus].text == "" && p_item->cells[i + plus].icon.is_null()) {
+ w += get_column_width(i + plus);
+ plus++;
+ skip++;
+ }
+ }
+
int bw = 0;
for (int j = p_item->cells[i].buttons.size() - 1; j >= 0; j--) {
Ref<Texture> b = p_item->cells[i].buttons[j].texture;
@@ -1295,8 +1373,8 @@ int Tree::draw_item(const Point2i &p_pos, const Point2 &p_draw_ofs, const Size2
while (c) {
if (cache.draw_relationship_lines == 1) {
- int root_ofs = children_pos.x + (hide_folding ? cache.hseparation : cache.item_margin);
- int parent_ofs = p_pos.x + (hide_folding ? cache.hseparation : cache.item_margin);
+ int root_ofs = children_pos.x + ((p_item->disable_folding || hide_folding) ? cache.hseparation : cache.item_margin);
+ int parent_ofs = p_pos.x + ((p_item->disable_folding || hide_folding) ? cache.hseparation : cache.item_margin);
Point2i root_pos = Point2i(root_ofs, children_pos.y + label_h / 2) - cache.offset + p_draw_ofs;
if (c->get_children() != NULL)
root_pos -= Point2i(cache.arrow->get_width(), 0);
@@ -1488,7 +1566,7 @@ int Tree::propagate_mouse_event(const Point2i &p_pos, int x_ofs, int y_ofs, bool
return -1;
}
- if (!hide_folding && (p_pos.x >= x_ofs && p_pos.x < (x_ofs + cache.item_margin))) {
+ if (!p_item->disable_folding && !hide_folding && (p_pos.x >= x_ofs && p_pos.x < (x_ofs + cache.item_margin))) {
if (p_item->childs)
p_item->set_collapsed(!p_item->is_collapsed());
@@ -1504,6 +1582,18 @@ int Tree::propagate_mouse_event(const Point2i &p_pos, int x_ofs, int y_ofs, bool
for (int i = 0; i < columns.size(); i++) {
col_width = get_column_width(i);
+
+ if (p_item->cells[i].expand_right) {
+
+ int plus = 1;
+ while (i + plus < columns.size() && !p_item->cells[i + plus].editable && p_item->cells[i + plus].mode == TreeItem::CELL_MODE_STRING && p_item->cells[i + plus].text == "" && p_item->cells[i + plus].icon.is_null()) {
+ plus++;
+ col_width += cache.hseparation;
+ col_width += get_column_width(i + plus);
+ plus++;
+ }
+ }
+
if (x > col_width) {
col_ofs += col_width;
x -= col_width;
@@ -1528,6 +1618,11 @@ int Tree::propagate_mouse_event(const Point2i &p_pos, int x_ofs, int y_ofs, bool
x -= cache.hseparation;
}
+ if (!p_item->disable_folding && !hide_folding && !p_item->cells[col].editable && !p_item->cells[col].selectable && p_item->get_children()) {
+ p_item->set_collapsed(!p_item->is_collapsed());
+ return -1; //collapse/uncollapse because nothing can be done with item
+ }
+
TreeItem::Cell &c = p_item->cells[col];
bool already_selected = c.selected;
diff --git a/scene/gui/tree.h b/scene/gui/tree.h
index 097e0110e8..59e35bb230 100644
--- a/scene/gui/tree.h
+++ b/scene/gui/tree.h
@@ -58,6 +58,12 @@ public:
CELL_MODE_CUSTOM, ///< Contains a custom value, show a string, and an edit button
};
+ enum TextAlign {
+ ALIGN_LEFT,
+ ALIGN_CENTER,
+ ALIGN_RIGHT
+ };
+
private:
friend class Tree;
@@ -82,6 +88,9 @@ private:
bool custom_bg_outline;
Color bg_color;
bool custom_button;
+ bool expand_right;
+
+ TextAlign text_align;
Variant meta;
String tooltip;
@@ -122,6 +131,8 @@ private:
custom_bg_color = false;
expr = false;
icon_max_w = 0;
+ text_align = ALIGN_LEFT;
+ expand_right = false;
}
Size2 get_icon_size() const;
@@ -131,6 +142,7 @@ private:
Vector<Cell> cells;
bool collapsed; // wont show childs
+ bool disable_folding;
TreeItem *parent; // parent item
TreeItem *next; // next in list
@@ -248,13 +260,23 @@ public:
void clear_children();
+ void set_text_align(int p_column, TextAlign p_align);
+ TextAlign get_text_align(int p_column) const;
+
+ void set_expand_right(int p_column, bool p_enable);
+ bool get_expand_right(int p_column) const;
+
void move_to_top();
void move_to_bottom();
+ void set_disable_folding(bool p_disable);
+ bool is_folding_disabled() const;
+
~TreeItem();
};
VARIANT_ENUM_CAST(TreeItem::TreeCellMode);
+VARIANT_ENUM_CAST(TreeItem::TextAlign);
class Tree : public Control {