#include "../../include/gui/DropdownButton.hpp" #include "../../include/gui/Utils.hpp" #include "../../include/Theme.hpp" #include #include #include #include #include namespace gsr { static const float padding_top = 15.0f; static const float padding_bottom = 15.0f; static const float padding_left = 20.0f; static const float padding_right = 20.0f; static const float border_scale = 0.003f; DropdownButton::DropdownButton(mgl::Font *title_font, mgl::Font *description_font, const char *title, const char *description_activated, const char *description_deactivated, mgl::Texture *icon_texture, mgl::vec2f size) : title_font(title_font), description_font(description_font), size(size), title(title, *title_font), description(description_deactivated, *description_font), description_activated(description_activated), description_deactivated(description_deactivated) { if(icon_texture && icon_texture->is_valid()) { icon_sprite.set_texture(icon_texture); icon_sprite.set_height((int)(size.y * 0.5f)); } this->description.set_color(mgl::Color(150, 150, 150)); } bool DropdownButton::on_event(mgl::Event &event, mgl::Window&, mgl::vec2f offset) { if(event.type == mgl::Event::MouseMoved) { const mgl::vec2f draw_pos = position + offset; const mgl::vec2f collision_margin(1.0f, 1.0f); // Makes sure that multiple buttons that are next to each other wont activate at the same time when the cursor is right between them mouse_inside = mgl::FloatRect(draw_pos + collision_margin, size - collision_margin).contains({ (float)event.mouse_move.x, (float)event.mouse_move.y }); } else if(event.type == mgl::Event::MouseButtonPressed && event.mouse_button.button == mgl::Mouse::Left) { const bool clicked_inside = mouse_inside; if(show_dropdown && clicked_inside && mouse_inside_item == -1) { show_dropdown = false; remove_widget_as_selected_in_parent(); return false; } show_dropdown = clicked_inside; if(show_dropdown) set_widget_as_selected_in_parent(); else remove_widget_as_selected_in_parent(); if(mouse_inside_item >= 0 && mouse_inside_item < (int)items.size()) { if(on_click) on_click(items[mouse_inside_item].id); return false; } } return true; } void DropdownButton::draw(mgl::Window &window, mgl::vec2f offset) { update_if_dirty(); const mgl::vec2f draw_pos = position + offset; const int border_size = border_scale * gsr::get_theme().window_height; if(show_dropdown) { // Background { mgl::Rectangle rect(size); rect.set_position(draw_pos); rect.set_color(mgl::Color(0, 0, 0, 255)); window.draw(rect); } const mgl::Color border_color = gsr::get_theme().tint_color; // Green line at top { mgl::Rectangle rect({ size.x, (float)border_size }); rect.set_position(draw_pos); rect.set_color(border_color); window.draw(rect); } } else if(mouse_inside) { // Background { mgl::Rectangle rect(size); rect.set_position(draw_pos); rect.set_color(mgl::Color(0, 0, 0, 255)); window.draw(rect); } const mgl::Color border_color = gsr::get_theme().tint_color; draw_rectangle_outline(window, draw_pos, size, border_color, border_size); } else { // Background mgl::Rectangle rect(size); rect.set_position(draw_pos); rect.set_color(mgl::Color(0, 0, 0, 180)); window.draw(rect); } const int text_margin = size.y * 0.085; const auto title_bounds = title.get_bounds(); title.set_position((draw_pos + mgl::vec2f(size.x * 0.5f - title_bounds.size.x * 0.5f, text_margin)).floor()); window.draw(title); const auto description_bounds = description.get_bounds(); description.set_position((draw_pos + mgl::vec2f(size.x * 0.5f - description_bounds.size.x * 0.5f, size.y - description_bounds.size.y - text_margin)).floor()); window.draw(description); if(icon_sprite.get_texture()->is_valid()) { icon_sprite.set_position((draw_pos + size * 0.5f - icon_sprite.get_size() * 0.5f).floor()); window.draw(icon_sprite); } mouse_inside_item = -1; if(show_dropdown) { const mgl::vec2i mouse_pos = window.get_mouse_position(); mgl::Rectangle dropdown_bg(max_size); dropdown_bg.set_position(draw_pos + mgl::vec2f(0.0f, size.y)); dropdown_bg.set_color(mgl::Color(0, 0, 0)); window.draw(dropdown_bg); mgl::vec2f item_position = dropdown_bg.get_position(); for(size_t i = 0; i < items.size(); ++i) { auto &item = items[i]; const auto text_bounds = item.text.get_bounds(); const float item_height = padding_top + text_bounds.size.y + padding_bottom; if(mouse_inside_item == -1) { const mgl::vec2f item_size(max_size.x, item_height); const bool inside = mgl::FloatRect(item_position, item_size).contains({ (float)mouse_pos.x, (float)mouse_pos.y }); if(inside) { draw_rectangle_outline(window, item_position, item_size, gsr::get_theme().tint_color, 5); mouse_inside_item = i; } } item.text.set_position((item_position + mgl::vec2f(padding_left, item_height * 0.5f - text_bounds.size.y * 0.5f)).floor()); window.draw(item.text); item_position.y += item_height; } } } void DropdownButton::add_item(const std::string &text, const std::string &id) { items.push_back({mgl::Text(text, *title_font), id}); dirty = true; } void DropdownButton::set_item_label(const std::string &id, const std::string &new_label) { for(auto &item : items) { if(item.id == id) { item.text.set_string(new_label); dirty = true; return; } } } void DropdownButton::set_activated(bool activated) { if(this->activated == activated) return; this->activated = activated; if(activated) { description = mgl::Text(description_activated, *description_font); description.set_color(get_theme().tint_color); icon_sprite.set_color(get_theme().tint_color); } else { description = mgl::Text(description_deactivated, *description_font); description.set_color(mgl::Color(150, 150, 150)); icon_sprite.set_color(mgl::Color(255, 255, 255)); } } void DropdownButton::update_if_dirty() { if(!dirty) return; max_size = { size.x, 0.0f }; for(Item &item : items) { const mgl::vec2f bounds = item.text.get_bounds().size; max_size.x = std::max(max_size.x, bounds.x + padding_left + padding_right); max_size.y += bounds.y + padding_top + padding_bottom; } dirty = false; } mgl::vec2f DropdownButton::get_size() { update_if_dirty(); return size; } }