jucipp/src/tooltips.h

#pragma once
#include "gtkmm.h"
#include <functional>
#include <list>
#include <set>
#include <string>

class Tooltip {
public:
  Tooltip(Gtk::TextView *text_view, Glib::RefPtr<Gtk::TextBuffer::Mark> start_mark_, Glib::RefPtr<Gtk::TextBuffer::Mark> end_mark_, std::function<void(const Glib::RefPtr<Gtk::TextBuffer> &)> set_buffer_);
  Tooltip(std::function<void(const Glib::RefPtr<Gtk::TextBuffer> &)> set_buffer_) : Tooltip(nullptr, Glib::RefPtr<Gtk::TextBuffer::Mark>(), Glib::RefPtr<Gtk::TextBuffer::Mark>(), std::move(set_buffer_)) {}
  ~Tooltip();

  void update();
  void show(bool disregard_drawn = false, const std::function<void()> &on_motion = nullptr);
  void hide(const std::pair<int, int> &last_mouse_pos = {-1, -1}, const std::pair<int, int> &mouse_pos = {-1, -1});

  Gdk::Rectangle activation_rectangle;
  Glib::RefPtr<Gtk::TextBuffer::Mark> start_mark;
  Glib::RefPtr<Gtk::TextBuffer::Mark> end_mark;

  Glib::RefPtr<Gtk::TextBuffer> text_buffer;

private:
  std::unique_ptr<Gtk::Window> window;
  void wrap_lines();

  Gtk::TextView *text_view;
  std::function<void(const Glib::RefPtr<Gtk::TextBuffer> &)> set_buffer;
  std::pair<int, int> size;
  Gdk::Rectangle rectangle;

  bool shown = false;

  Glib::RefPtr<Gtk::TextTag> link_tag;
};

class Tooltips {
public:
  static std::set<Tooltip *> shown_tooltips;
  static Gdk::Rectangle drawn_tooltips_rectangle;
  static void init() { drawn_tooltips_rectangle = Gdk::Rectangle(); }

  void show(const Gdk::Rectangle &rectangle, bool disregard_drawn = false);
  void show(bool disregard_drawn = false);
  void hide(const std::pair<int, int> &last_mouse_pos = {-1, -1}, const std::pair<int, int> &mouse_pos = {-1, -1});
  void clear() { tooltip_list.clear(); };

  template <typename... Ts>
  void emplace_back(Ts &&... params) {
    tooltip_list.emplace_back(std::forward<Ts>(params)...);
  }

  std::function<void()> on_motion;

private:
  std::list<Tooltip> tooltip_list;
};