paint_event_args.h

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#pragma once
#include "../forms_export.h"
#include "message.h"
#include <xtd/drawing/graphics>
#include <xtd/drawing/rectangle>
#include <xtd/event_args>
 
namespace xtd {
  namespace forms {
    class control;
    
    class forms_export_ paint_event_args : public event_args {
    public:
      
      paint_event_args(xtd::forms::control& control, const drawing::rectangle& clip_rectangle);
      paint_event_args(xtd::drawing::graphics& graphics, const drawing::rectangle& clip_rectangle);
      
      
      const drawing::rectangle& clip_rectangle() const noexcept;
      
      drawing::graphics& graphics();
      
    private:
      friend class xtd::forms::control;
      xtd::forms::control* control_ = nullptr;
      mutable std::unique_ptr<xtd::drawing::graphics> graphics_;
      xtd::drawing::rectangle clip_rectangle_;
      xtd::forms::message message_; // need for xtd::forms::control::on_paint_ xtd::forms::control::on_paint_background to call def_wnd_proc method.
    };
  }
}