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#include "../../include/gui/RadioButton.hpp"
#include "../../include/gui/Utils.hpp"
#include "../../include/Theme.hpp"
#include <mglpp/graphics/Rectangle.hpp>
#include <mglpp/window/Window.hpp>
#include <mglpp/window/Event.hpp>
#include <mglpp/system/FloatRect.hpp>
namespace gsr {
static const float padding_top_scale = 0.004629f;
static const float padding_bottom_scale = 0.004629f;
static const float padding_left_scale = 0.007f;
static const float padding_right_scale = 0.007f;
static const float spacing_scale = 0.007f;
static const float border_scale = 0.0015f;
RadioButton::RadioButton(mgl::Font *font) : font(font) {
}
bool RadioButton::on_event(mgl::Event &event, mgl::Window&, mgl::vec2f offset) {
if(!visible)
return true;
const int padding_top = padding_top_scale * get_theme().window_height;
const int padding_bottom = padding_bottom_scale * get_theme().window_height;
const int padding_left = padding_left_scale * get_theme().window_height;
const int padding_right = padding_right_scale * get_theme().window_height;
if(event.type == mgl::Event::MouseButtonPressed && event.mouse_button.button == mgl::Mouse::Left) {
mgl::vec2f draw_pos = position + offset;
for(size_t i = 0; i < items.size(); ++i) {
auto &item = items[i];
const mgl::vec2f item_size = item.text.get_bounds().size + mgl::vec2f(padding_left + padding_right, padding_top + padding_bottom);
const bool mouse_inside = mgl::FloatRect(draw_pos, item_size).contains(mgl::vec2f(event.mouse_button.x, event.mouse_button.y));
if(mouse_inside) {
const size_t prev_selected_item = selected_item;
selected_item = i;
if(selected_item != prev_selected_item && on_selection_changed)
on_selection_changed(item.text.get_string(), item.id);
return false;
}
draw_pos.x += item_size.x + spacing_scale * get_theme().window_height;
}
}
return true;
}
void RadioButton::draw(mgl::Window &window, mgl::vec2f offset) {
if(!visible)
return;
update_if_dirty();
if(items.empty())
return;
const int padding_top = padding_top_scale * get_theme().window_height;
const int padding_bottom = padding_bottom_scale * get_theme().window_height;
const int padding_left = padding_left_scale * get_theme().window_height;
const int padding_right = padding_right_scale * get_theme().window_height;
const bool can_select_item = !has_parent_with_selected_child_widget();
mgl::vec2f draw_pos = position + offset;
for(size_t i = 0; i < items.size(); ++i) {
auto &item = items[i];
const mgl::vec2f item_size = item.text.get_bounds().size + mgl::vec2f(padding_left + padding_right, padding_top + padding_bottom);
mgl::Rectangle background(item_size.floor());
background.set_position(draw_pos.floor());
background.set_color(i == selected_item ? get_theme().tint_color : mgl::Color(0, 0, 0, 120));
window.draw(background);
const bool mouse_inside = mgl::FloatRect(draw_pos, item_size).contains(window.get_mouse_position().to_vec2f());
if(can_select_item && mouse_inside) {
const int border_size = std::max(1.0f, border_scale * get_theme().window_height);
const mgl::Color border_color = get_theme().tint_color;
draw_rectangle_outline(window, draw_pos.floor(), item_size.floor(), border_color, border_size);
}
item.text.set_position((draw_pos + item_size * 0.5f - item.text.get_bounds().size * 0.5f).floor());
window.draw(item.text);
draw_pos.x += item_size.x + spacing_scale * get_theme().window_height;
}
}
void RadioButton::update_if_dirty() {
if(!dirty)
return;
const int padding_top = padding_top_scale * get_theme().window_height;
const int padding_bottom = padding_bottom_scale * get_theme().window_height;
const int padding_left = padding_left_scale * get_theme().window_height;
const int padding_right = padding_right_scale * get_theme().window_height;
size = { 0.0f, font->get_character_size() + (float)padding_top + (float)padding_bottom };
for(Item &item : items) {
const mgl::vec2f bounds = item.text.get_bounds().size;
size.x += bounds.x + padding_left + padding_right;
}
if(items.size() > 1)
size.x += (items.size() - 1) * spacing_scale * get_theme().window_height;
dirty = false;
}
mgl::vec2f RadioButton::get_size() {
if(!visible || items.empty())
return {0.0f, 0.0f};
update_if_dirty();
return size;
}
void RadioButton::add_item(const std::string &text, const std::string &id) {
items.push_back({mgl::Text(text, *font), id});
dirty = true;
}
void RadioButton::set_selected_item(const std::string &id, bool trigger_event) {
for(size_t i = 0; i < items.size(); ++i) {
auto &item = items[i];
if(item.id == id) {
const size_t prev_selected_item = selected_item;
selected_item = i;
if(trigger_event && selected_item != prev_selected_item && on_selection_changed)
on_selection_changed(item.text.get_string(), item.id);
break;
}
}
}
const std::string RadioButton::get_selected_id() const {
if(items.empty()) {
static std::string dummy;
return dummy;
} else {
return items[selected_item].id;
}
}
}
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