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#include "../../include/gui/CheckBox.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 spacing_scale = 0.005f;
static const float check_animation_speed = 10.0f;
static mgl::Color color_multiply(mgl::Color color, float multiply) {
return mgl::Color(color.r * multiply, color.g * multiply, color.b * multiply, color.a);
}
static float linear_interpolation(float source, float destination, float interpolation) {
return source + (destination - source) * interpolation;
}
static mgl::Color interpolate_color(mgl::Color source, mgl::Color destination, float interpolation) {
mgl::Color color;
color.r = linear_interpolation(source.r, destination.r, interpolation);
color.g = linear_interpolation(source.g, destination.g, interpolation);
color.b = linear_interpolation(source.b, destination.b, interpolation);
color.a = linear_interpolation(source.a, destination.a, interpolation);
return color;
}
CheckBox::CheckBox(mgl::Font *font, const char *text) :
text(text, *font),
background_sprite(&get_theme().checkbox_background_texture),
circle_sprite(&get_theme().checkbox_circle_texture)
{
background_sprite.set_color(get_color_theme().tint_color);
circle_sprite.set_color(get_color_theme().tint_color);
}
bool CheckBox::on_event(mgl::Event &event, mgl::Window&, mgl::vec2f offset) {
if(!visible)
return true;
if(event.type == mgl::Event::MouseButtonPressed && event.mouse_button.button == mgl::Mouse::Left) {
const bool clicked_inside = mgl::FloatRect(position + offset, get_size()).contains({ (float)event.mouse_button.x, (float)event.mouse_button.y });
if(clicked_inside) {
checked = !checked;
if(on_changed)
on_changed(checked);
return false;
}
}
return true;
}
void CheckBox::draw(mgl::Window &window, mgl::vec2f offset) {
if(!visible)
return;
const mgl::vec2f draw_pos = position + offset;
const mgl::vec2f checkbox_size = get_checkbox_size();
apply_animation();
const mgl::Color background_color_unchecked(0, 0, 0, 120);
const mgl::Color background_color_checked = color_multiply(get_color_theme().tint_color, 0.6f);
background_sprite.set_color(interpolate_color(background_color_unchecked, background_color_checked, toggle_animation_value));
background_sprite.set_position(draw_pos.floor());
window.draw(background_sprite);
circle_sprite.set_height((int)background_sprite.get_size().y);
const float circle_animation_x = linear_interpolation(0.0f, background_sprite.get_size().x - circle_sprite.get_size().x, toggle_animation_value);
circle_sprite.set_position((draw_pos + mgl::vec2f(circle_animation_x, 0.0f)).floor());
window.draw(circle_sprite);
const mgl::vec2f text_bounds = text.get_bounds().size;
text.set_position((draw_pos + mgl::vec2f(checkbox_size.x + spacing_scale * get_theme().window_height, checkbox_size.y * 0.5f - text_bounds.y * 0.5f)).floor());
window.draw(text);
}
void CheckBox::apply_animation() {
if(checked)
toggle_animation_value += (get_frame_delta_seconds() * check_animation_speed);
else
toggle_animation_value -= (get_frame_delta_seconds() * check_animation_speed);
if(toggle_animation_value < 0.0f)
toggle_animation_value = 0.0f;
else if(toggle_animation_value > 1.0f)
toggle_animation_value = 1.0f;
}
mgl::vec2f CheckBox::get_size() {
if(!visible)
return {0.0f, 0.0f};
mgl::vec2f size = text.get_bounds().size;
const mgl::vec2f checkbox_size = get_checkbox_size();
size.x += checkbox_size.x + spacing_scale * get_theme().window_height;
size.y = std::max(size.y, checkbox_size.y);
return size;
}
mgl::vec2f CheckBox::get_checkbox_size() {
background_sprite.set_height((int)text.get_bounds().size.y);
return background_sprite.get_size().floor();
}
void CheckBox::set_checked(bool checked, bool animated) {
this->checked = checked;
if(!animated)
toggle_animation_value = checked ? 1.0f : 0.0f;
if(on_changed)
on_changed(checked);
}
bool CheckBox::is_checked() const {
return checked;
}
}
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