Enhanched About dialog, Add ItemList auto_height

Add set/has_auto_height for ItemList to automatically set minimum
size by content.
Add hash to About dialog.
Resize About dialog so that dev list appears in 3 columns.

editor/editor_node.cpp

@@ -58,6 +58,7 @@
 #include "servers/physics_2d_server.h"
 #include "translation.h"
 #include "version.h"
+#include "version_hash.gen.h"
 #include <stdio.h>
 // plugins
 #include "asset_library_editor_plugin.h"
@@ -5986,14 +5987,18 @@ EditorNode::EditorNode() {
 		logo->set_texture(gui_base->get_icon("Logo", "EditorIcons"));
 		hbc->add_child(logo);
 
+		String hash = String(VERSION_HASH);
+		if (hash.length() != 0)
+			hash = "." + hash.left(7);
+
 		Label *about_text = memnew(Label);
 		about_text->set_v_size_flags(Control::SIZE_SHRINK_CENTER);
-		about_text->set_text(VERSION_FULL_NAME + String::utf8("\n\u00A9 2007-2017 Juan Linietsky, Ariel Manzur.\n\u00A9 2014-2017 ") +
+		about_text->set_text(VERSION_FULL_NAME + hash + String::utf8("\n\u00A9 2007-2017 Juan Linietsky, Ariel Manzur.\n\u00A9 2014-2017 ") +
 							 TTR("Godot Engine contributors") + "\n");
 		hbc->add_child(about_text);
 
 		TabContainer *tc = memnew(TabContainer);
-		tc->set_custom_minimum_size(Size2(600, 240) * EDSCALE);
+		tc->set_custom_minimum_size(Size2(630, 240) * EDSCALE);
 		tc->set_v_size_flags(Control::SIZE_EXPAND_FILL);
 		vbc->add_child(tc);
 
@@ -6021,14 +6026,14 @@ EditorNode::EditorNode() {
 			dev_vbc->add_child(lbl);
 
 			ItemList *il = memnew(ItemList);
-			il->set_max_columns(32);
+			il->set_max_columns(16);
 			il->set_h_size_flags(Control::SIZE_EXPAND_FILL);
-			il->set_custom_minimum_size(Size2(0, i == 3 ? DEV_NAMES_COUNT * 7.6 : 30) * EDSCALE);
+			il->set_fixed_column_width(230 * EDSCALE);
+			il->set_auto_height(true);
 			const char **dev_names_ptr = dev_src[i];
 			while (*dev_names_ptr)
 				il->add_item(String::utf8(*dev_names_ptr++), NULL, false);
 			dev_vbc->add_child(il);
-			il->set_fixed_column_width(240 * EDSCALE);
 
 			HSeparator *hs = memnew(HSeparator);
 			hs->set_modulate(Color(0, 0, 0, 0));

scene/gui/item_list.cpp

@@ -28,8 +28,8 @@
 /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
 /*************************************************************************/
 #include "item_list.h"
-#include "project_settings.h"
 #include "os/os.h"
+#include "project_settings.h"
 
 void ItemList::add_item(const String &p_item, const Ref<Texture> &p_texture, bool p_selectable) {
 
@@ -743,12 +743,10 @@ void ItemList::_notification(int p_what) {
 
 		Size2 size = get_size();
 
-		float page = size.height - bg->get_minimum_size().height;
 		int width = size.width - bg->get_minimum_size().width;
 		if (scroll_bar->is_visible()) {
 			width -= mw + bg->get_margin(MARGIN_RIGHT);
 		}
-		scroll_bar->set_page(page);
 
 		draw_style_box(bg, Rect2(Point2(), size));
 
@@ -883,8 +881,12 @@ void ItemList::_notification(int p_what) {
 				}
 
 				if (all_fit) {
+					float page = size.height - bg->get_minimum_size().height;
 					float max = MAX(page, ofs.y + max_h);
+					if (auto_height)
+						auto_height_value = ofs.y + max_h + bg->get_minimum_size().height;
 					scroll_bar->set_max(max);
+					scroll_bar->set_page(page);
 					//print_line("max: "+rtos(max)+" page "+rtos(page));
 					if (max <= page) {
 						scroll_bar->set_value(0);
@@ -1253,6 +1255,26 @@ Array ItemList::_get_items() const {
 	return items;
 }
 
+Size2 ItemList::get_minimum_size() const {
+
+	if (auto_height) {
+		return Size2(0, auto_height_value);
+	}
+	return Size2();
+}
+
+void ItemList::set_auto_height(bool p_enable) {
+
+	auto_height = p_enable;
+	shape_changed = true;
+	update();
+}
+
+bool ItemList::has_auto_height() const {
+
+	return auto_height;
+}
+
 void ItemList::_bind_methods() {
 
 	ClassDB::bind_method(D_METHOD("add_item", "text", "icon:Texture", "selectable"), &ItemList::add_item, DEFVAL(Variant()), DEFVAL(true));
@@ -1323,6 +1345,9 @@ void ItemList::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_allow_rmb_select", "allow"), &ItemList::set_allow_rmb_select);
 	ClassDB::bind_method(D_METHOD("get_allow_rmb_select"), &ItemList::get_allow_rmb_select);
 
+	ClassDB::bind_method(D_METHOD("set_auto_height", "enable"), &ItemList::set_auto_height);
+	ClassDB::bind_method(D_METHOD("has_auto_height"), &ItemList::has_auto_height);
+
 	ClassDB::bind_method(D_METHOD("get_item_at_pos", "pos", "exact"), &ItemList::get_item_at_pos, DEFVAL(false));
 
 	ClassDB::bind_method(D_METHOD("ensure_current_is_visible"), &ItemList::ensure_current_is_visible);
@@ -1340,6 +1365,7 @@ void ItemList::_bind_methods() {
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "select_mode", PROPERTY_HINT_ENUM, "Single,Multi"), "set_select_mode", "get_select_mode");
 	ADD_PROPERTYNZ(PropertyInfo(Variant::BOOL, "allow_rmb_select"), "set_allow_rmb_select", "get_allow_rmb_select");
 	ADD_PROPERTYNO(PropertyInfo(Variant::INT, "max_text_lines"), "set_max_text_lines", "get_max_text_lines");
+	ADD_PROPERTYNZ(PropertyInfo(Variant::BOOL, "auto_height"), "set_auto_height", "has_auto_height");
 	ADD_GROUP("Columns", "");
 	ADD_PROPERTYNO(PropertyInfo(Variant::INT, "max_columns"), "set_max_columns", "get_max_columns");
 	ADD_PROPERTYNZ(PropertyInfo(Variant::BOOL, "same_column_width"), "set_same_column_width", "is_same_column_width");
@@ -1372,6 +1398,8 @@ ItemList::ItemList() {
 	same_column_width = false;
 	max_text_lines = 1;
 	max_columns = 1;
+	auto_height = false;
+	auto_height_value = 0.0f;
 
 	scroll_bar = memnew(VScrollBar);
 	add_child(scroll_bar);

scene/gui/item_list.h

@@ -78,6 +78,9 @@ private:
 	bool ensure_selected_visible;
 	bool same_column_width;
 
+	bool auto_height;
+	float auto_height_value;
+
 	Vector<Item> items;
 	Vector<int> separators;
 
@@ -198,6 +201,11 @@ public:
 	void set_icon_scale(real_t p_scale);
 	real_t get_icon_scale() const;
 
+	void set_auto_height(bool p_enable);
+	bool has_auto_height() const;
+
+	Size2 get_minimum_size() const;
+
 	VScrollBar *get_v_scroll() { return scroll_bar; }
 
 	ItemList();