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#include "GUIOverlappingElementsBox.hpp"
#include <godot_cpp/variant/utility_functions.hpp>
#include "openvic-extension/utility/ClassBindings.hpp"
#include "openvic-extension/utility/UITools.hpp"
#include "openvic-extension/utility/Utilities.hpp"
using namespace OpenVic;
using namespace godot;
using OpenVic::Utilities::std_view_to_godot_string;
Error GUIOverlappingElementsBox::_update_child_positions() {
ERR_FAIL_NULL_V(gui_overlapping_elements_box, FAILED);
const int32_t child_count = get_child_count();
if (child_count <= 0) {
return OK;
}
const auto _get_child = [this](int32_t index) -> Control* { return Object::cast_to<Control>(get_child(index)); };
const float box_width = get_size().x;
const float child_width = _get_child(0)->get_size().x;
const float max_spacing = box_width / (child_count + 1);
const float default_spacing = child_width + gui_overlapping_elements_box->get_spacing().to_float();
const float spacing = std::min(max_spacing, default_spacing);
const float total_width = spacing * (child_count - 1) + child_width;
float starting_x = 0.0f;
Error err = OK;
using enum GUI::AlignedElement::format_t;
switch (gui_overlapping_elements_box->get_format()) {
case left:
break;
case centre:
starting_x = (box_width - total_width) / 2;
break;
case right:
starting_x = box_width - total_width;
break;
default:
UtilityFunctions::push_error(
"Invalid GUIOverlappingElementsBox alignment: ",
static_cast<int32_t>(gui_overlapping_elements_box->get_format())
);
err = FAILED;
}
for (int32_t index = 0; index < child_count; ++index) {
_get_child(index)->set_position({ starting_x + spacing * index, 0.0f });
}
return err;
}
void GUIOverlappingElementsBox::_bind_methods() {
OV_BIND_METHOD(GUIOverlappingElementsBox::clear);
OV_BIND_METHOD(GUIOverlappingElementsBox::clear_children);
OV_BIND_METHOD(GUIOverlappingElementsBox::set_child_count, { "new_count" });
OV_BIND_METHOD(GUIOverlappingElementsBox::get_gui_overlapping_elements_box_name);
OV_BIND_METHOD(
GUIOverlappingElementsBox::set_gui_child_element_name, { "gui_child_element_file", "gui_child_element_name" }
);
OV_BIND_METHOD(GUIOverlappingElementsBox::get_gui_child_element_name);
}
void GUIOverlappingElementsBox::_notification(int what) {
if (what == NOTIFICATION_SORT_CHILDREN) {
_update_child_positions();
}
}
GUIOverlappingElementsBox::GUIOverlappingElementsBox()
: gui_overlapping_elements_box { nullptr }, gui_child_element { nullptr } {}
void GUIOverlappingElementsBox::clear() {
clear_children();
gui_child_element = nullptr;
gui_overlapping_elements_box = nullptr;
}
void GUIOverlappingElementsBox::clear_children() {
set_child_count(0);
}
Error GUIOverlappingElementsBox::set_child_count(int32_t new_count) {
ERR_FAIL_COND_V_MSG(new_count < 0, FAILED, "Child count must be non-negative");
int32_t child_count = get_child_count();
if (child_count == new_count) {
return OK;
} else if (child_count > new_count) {
do {
remove_child(get_child(--child_count));
} while (child_count > new_count);
return OK;
} else {
ERR_FAIL_NULL_V_MSG(
gui_child_element, FAILED, vformat(
"GUIOverlappingElementsBox child element is null (child_count = %d, new_count = %d)", child_count, new_count
)
);
Error err = OK;
const String gui_child_element_name = std_view_to_godot_string(gui_child_element->get_name()) + "_";
do {
Control* child = nullptr;
const String name = gui_child_element_name + itos(child_count);
if (!UITools::generate_gui_element(gui_child_element, name, child)) {
UtilityFunctions::push_error("Error generating GUIOverlappingElementsBox child element ", name);
err = FAILED;
}
ERR_FAIL_NULL_V_MSG(
child, FAILED, vformat(
"Failed to generate GUIOverlappingElementsBox child element %s (child_count = %d, new_count = %d)",
name, child_count, new_count
)
);
static const StringName set_z_index_func_name = "set_z_index";
static const StringName mouse_entered_signal_name = "mouse_entered";
static const StringName mouse_exited_signal_name = "mouse_exited";
/* Move the child element in front of its neighbours when moused-over. */
child->connect(mouse_entered_signal_name, Callable { child, set_z_index_func_name }.bind(1), CONNECT_PERSIST);
child->connect(mouse_exited_signal_name, Callable { child, set_z_index_func_name }.bind(0), CONNECT_PERSIST);
add_child(child);
child_count++;
} while (child_count < new_count);
return err;
}
}
Error GUIOverlappingElementsBox::set_gui_overlapping_elements_box(
GUI::OverlappingElementsBox const* new_gui_overlapping_elements_box
) {
if (gui_overlapping_elements_box == new_gui_overlapping_elements_box) {
return OK;
}
gui_overlapping_elements_box = new_gui_overlapping_elements_box;
if (gui_overlapping_elements_box == nullptr) {
return OK;
}
set_custom_minimum_size(Utilities::to_godot_fvec2(gui_overlapping_elements_box->get_size()));
queue_sort();
return OK;
}
String GUIOverlappingElementsBox::get_gui_overlapping_elements_box_name() const {
return gui_overlapping_elements_box != nullptr ? std_view_to_godot_string(gui_overlapping_elements_box->get_name()) : String {};
}
Error GUIOverlappingElementsBox::set_gui_child_element(GUI::Element const* new_gui_child_element) {
clear_children();
gui_child_element = new_gui_child_element;
return OK;
}
Error GUIOverlappingElementsBox::set_gui_child_element_name(
String const& gui_child_element_file, String const& gui_child_element_name
) {
if (gui_child_element_file.is_empty() && gui_child_element_name.is_empty()) {
return set_gui_child_element(nullptr);
}
ERR_FAIL_COND_V_MSG(
gui_child_element_file.is_empty(), FAILED,
vformat("GUI child element file name is empty but element name is not: %s", gui_child_element_name)
);
ERR_FAIL_COND_V_MSG(
gui_child_element_name.is_empty(), FAILED,
vformat("GUI child element name is empty but file name is not: %s", gui_child_element_file)
);
GUI::Element const* const new_gui_child_element = UITools::get_gui_element(gui_child_element_file, gui_child_element_name);
ERR_FAIL_NULL_V(new_gui_child_element, FAILED);
return set_gui_child_element(new_gui_child_element);
}
String GUIOverlappingElementsBox::get_gui_child_element_name() const {
return gui_child_element != nullptr ? std_view_to_godot_string(gui_child_element->get_name()) : String {};
}
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