simple_dispatcher

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// Copyright (C) 2010, Guy Barrand. All rights reserved.
// See the file tools.license for terms.
 
#ifndef tools_X11_simple_dispatcher
#define tools_X11_simple_dispatcher
 
#include "base_session"
 
#include <tools/saui>
 
namespace tools {
namespace X11 {
 
class simple_dispatcher : public dispatcher {
  typedef dispatcher parent;
public:
  virtual void win_render() = 0;
  virtual void set_size(unsigned int a_width,unsigned int a_height) = 0;
public:
  virtual bool dispatch(XEvent& a_event) {
    if(!m_win) return false;
    if(a_event.xany.window!=m_win) return false;
    if( (a_event.type==Expose) || (a_event.type==ConfigureNotify) ){
      int width,height;
      m_session.window_size(m_win,width,height);
      set_size(width,height);   //viewer::set_size()
      win_render();
      return true;
    } else if(a_event.type==ClientMessage) {
      if(a_event.xclient.data.l[0]==(long)m_session.WM_DELETE_WINDOW_atom()) {
        m_session.post(m_win,m_session.SESSION_EXIT_STEER_atom());
        return true;
      }
    }
    return false;
  }
  virtual Window window() const {return m_win;}
public:
  simple_dispatcher(base_session& a_session,Window a_win)
  :parent()
  ,m_session(a_session)
  ,m_win(a_win)
  {}
  virtual ~simple_dispatcher(){}
public:
  simple_dispatcher(const simple_dispatcher& a_from)
  :parent(a_from)
  ,m_session(a_from.m_session)
  ,m_win(a_from.m_win)
  {}
  simple_dispatcher& operator=(const simple_dispatcher& a_from) {
    parent::operator=(a_from);
    m_win = a_from.m_win;
    return *this;
  }
protected:
  base_session& m_session;
  Window m_win;
};
 
}}
 
#endif