diff options
Diffstat (limited to 'src/gui/RadioButton.cpp')
| -rw-r--r-- | src/gui/RadioButton.cpp | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/src/gui/RadioButton.cpp b/src/gui/RadioButton.cpp new file mode 100644 index 0000000..e5ba02a --- /dev/null +++ b/src/gui/RadioButton.cpp @@ -0,0 +1,129 @@ +#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(); + + 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 = 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) + 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) { + for(size_t i = 0; i < items.size(); ++i) { + if(items[i].id == id) { + selected_item = i; + break; + } + } + } +}
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