Extra2D/include/ui/radio_button.h

#pragma once

#include <core/types.h>
#include <graphics/font.h>
#include <ui/widget.h>

namespace extra2d {

// ============================================================================
// 单选按钮组件
// ============================================================================
class RadioButton : public Widget {
public:
  RadioButton();
  ~RadioButton() override = default;

  static Ptr<RadioButton> create();
  static Ptr<RadioButton> create(const std::string &label);

  // ------------------------------------------------------------------------
  // 选择状态
  // ------------------------------------------------------------------------
  void setSelected(bool selected);
  bool isSelected() const { return selected_; }

  // ------------------------------------------------------------------------
  // 标签设置
  // ------------------------------------------------------------------------
  void setLabel(const std::string &label);
  const std::string &getLabel() const { return label_; }

  // ------------------------------------------------------------------------
  // 字体设置
  // ------------------------------------------------------------------------
  void setFont(Ptr<FontAtlas> font);
  Ptr<FontAtlas> getFont() const { return font_; }

  // ------------------------------------------------------------------------
  // 文字颜色
  // ------------------------------------------------------------------------
  void setTextColor(const Color &color);
  Color getTextColor() const { return textColor_; }

  // ------------------------------------------------------------------------
  // 圆形尺寸
  // ------------------------------------------------------------------------
  void setCircleSize(float size);
  float getCircleSize() const { return circleSize_; }

  // ------------------------------------------------------------------------
  // 间距
  // ------------------------------------------------------------------------
  void setSpacing(float spacing);
  float getSpacing() const { return spacing_; }

  // ------------------------------------------------------------------------
  // 颜色设置
  // ------------------------------------------------------------------------
  void setSelectedColor(const Color &color);
  Color getSelectedColor() const { return selectedColor_; }

  void setUnselectedColor(const Color &color);
  Color getUnselectedColor() const { return unselectedColor_; }

  void setDotColor(const Color &color);
  Color getDotColor() const { return dotColor_; }

  // ------------------------------------------------------------------------
  // 分组
  // ------------------------------------------------------------------------
  void setGroupId(int groupId);
  int getGroupId() const { return groupId_; }

  // ------------------------------------------------------------------------
  // 回调设置
  // ------------------------------------------------------------------------
  void setOnStateChange(Function<void(bool)> callback);

  Rect boundingBox() const override;

protected:
  void onDrawWidget(Renderer &renderer) override;
  bool onMousePress(const MouseEvent &event) override;
  bool onMouseRelease(const MouseEvent &event) override;

private:
  bool selected_ = false;
  std::string label_;
  Ptr<FontAtlas> font_;
  Color textColor_ = Colors::White;

  float circleSize_ = 20.0f;
  float spacing_ = 8.0f;

  Color selectedColor_ = Color(0.2f, 0.6f, 1.0f, 1.0f);
  Color unselectedColor_ = Color(0.3f, 0.3f, 0.3f, 1.0f);
  Color dotColor_ = Colors::White;

  int groupId_ = 0;

  bool pressed_ = false;
  Function<void(bool)> onStateChange_;
};

// ============================================================================
// 单选按钮组管理器
// ============================================================================
class RadioButtonGroup {
public:
  void addButton(RadioButton *button);
  void removeButton(RadioButton *button);
  void selectButton(RadioButton *button);
  RadioButton *getSelectedButton() const { return selectedButton_; }

  void setOnSelectionChange(Function<void(RadioButton *)> callback);

private:
  std::vector<RadioButton *> buttons_;
  RadioButton *selectedButton_ = nullptr;
  Function<void(RadioButton *)> onSelectionChange_;
};

} // namespace extra2d