background_wnd/painters/resource_painter.hpp

// resource_painter.hpp

// Copyright (C) 2004 Steven Weiß (steven11@gmx.de)
//
// Permission to copy, use, sell and distribute this software is granted
// provided this copyright notice appears in all copies.
// Permission to modify the code and to distribute modified code is granted
// provided this copyright notice appears in all copies, and a notice
// that the code was modified is included with the copyright notice.
//
// This software is provided "as is" without express or implied warranty,
// and with no claim as to its suitability for any purpose.


#pragma once
#include <background_wnd/detail/include.hpp>
#include <background_wnd/painter_base.hpp>


namespace win32 { namespace gui {

namespace bg_wnd {

     struct res_info
     {
          static HINSTANCE module_handle()
          {
               return GetModuleHandle(NULL);
          }

          res_info(unsigned nResource, unsigned uType, int cx = 0, int cy = 0, 
                    unsigned fuLoad = LR_DEFAULTCOLOR | LR_DEFAULTSIZE, HINSTANCE hInst = module_handle());
          res_info(const char* pchResource, unsigned uType, int cx = 0, int cy = 0, 
                    unsigned fuLoad = LR_DEFAULTCOLOR | LR_DEFAULTSIZE, HINSTANCE hInst = module_handle());
          
          const char* pchResource_;
          unsigned  uType_;   
          int            cx_;
          int            cy_;
          unsigned  fuLoad_;
          HINSTANCE hInst_;
     };

}    // namespace bg_wnd

// ========================================================================================================= //

namespace detail {

     struct resource_painter_base : painter_base
     {
          typedef const bg_wnd::res_info& param0;
          
          // the big 4
          resource_painter_base(const bg_wnd::res_info& info);
          resource_painter_base(const resource_painter_base& p);
          virtual ~resource_painter_base();
          const resource_painter_base& operator= (const resource_painter_base& p);
                    
          void load_resource(const bg_wnd::res_info& info);      
          SIZE resource_size() const;

     protected:     
          void draw_resource(HDC hDC, int x, int y, int cx, int cy);
          
     private:
          void delete_resource();

          HANDLE     hResource_;
          unsigned uType_;
     };

}    // namespace detail

// ========================================================================================================= //

class resource_painter : public detail::resource_painter_base
{
     typedef detail::resource_painter_base Base;

public:
     // c'tor
     resource_painter(const bg_wnd::res_info& info);
     
     // virtual functions of painter_base
     resource_painter* clone() const;
     void draw(HDC hDC, int cx, int cy);     
};

// ========================================================================================================= //

class tile_resource_painter : public detail::resource_painter_base
{
     typedef detail::resource_painter_base Base;
     SIZE tile_size_;

public:
     typedef SIZE param1;

     // c'tor
     tile_resource_painter(const bg_wnd::res_info& info);
     tile_resource_painter(const bg_wnd::res_info& info, SIZE tile_size);
     
     // virtual functions of painter_base
     tile_resource_painter* clone() const;
     void draw(HDC hDC, int cx, int cy);     
     
     // own functions
     void tile_size(SIZE tile_size);
     SIZE tile_size() const;
};

} }  // namespace win32::gui

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