wxWidgets/include/wx/univ/theme.h

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///////////////////////////////////////////////////////////////////////////////
// Name: wx/univ/theme.h
// Purpose: wxTheme class manages all configurable aspects of the
// application including the look (wxRenderer), feel
// (wxInputHandler) and the colours (wxColourScheme)
// Author: Vadim Zeitlin
// Modified by:
// Created: 06.08.00
// RCS-ID: $Id$
// Copyright: (c) 2000 SciTech Software, Inc. (www.scitechsoft.com)
// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
#ifndef _WX_UNIV_THEME_H_
#define _WX_UNIV_THEME_H_
#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
#pragma interface "theme.h"
#endif
// ----------------------------------------------------------------------------
// wxTheme
// ----------------------------------------------------------------------------
class WXDLLEXPORT wxRenderer;
class WXDLLEXPORT wxColourScheme;
class WXDLLEXPORT wxInputHandler;
class WXDLLEXPORT wxArtProvider;
struct WXDLLEXPORT wxThemeInfo;
class WXDLLEXPORT wxTheme
{
public:
// static methods
// --------------
// create the default theme
static bool CreateDefault();
// create the theme by name (will return NULL if not found)
static wxTheme *Create(const wxString& name);
// change the current scheme
static wxTheme *Set(wxTheme *theme);
// get the current theme (never NULL)
static wxTheme *Get() { return ms_theme; }
// the theme methods
// -----------------
// get the renderer implementing all the control-drawing operations in
// this theme
virtual wxRenderer *GetRenderer() = 0;
// get the art provider to be used together with this theme
virtual wxArtProvider *GetArtProvider() = 0;
// get the input handler of the given type
virtual wxInputHandler *GetInputHandler(const wxString& handlerType) = 0;
// get the colour scheme for the control with this name
virtual wxColourScheme *GetColourScheme() = 0;
// implementation only from now on
// -------------------------------
virtual ~wxTheme();
private:
// the list of descriptions of all known themes
static wxThemeInfo *ms_allThemes;
// the current theme
static wxTheme *ms_theme;
friend struct WXDLLEXPORT wxThemeInfo;
};
// ----------------------------------------------------------------------------
// dynamic theme creation helpers
// ----------------------------------------------------------------------------
struct WXDLLEXPORT wxThemeInfo
{
typedef wxTheme *(*Constructor)();
// theme name and (user readable) description
wxString name, desc;
// the function to create a theme object
Constructor ctor;
// next node in the linked list or NULL
wxThemeInfo *next;
// constructor for the struct itself
wxThemeInfo(Constructor ctor, const wxChar *name, const wxChar *desc);
};
// ----------------------------------------------------------------------------
// macros
// ----------------------------------------------------------------------------
// to use a standard theme insert this macro into one of the application files:
// without it, an over optimizing linker may discard the object module
// containing the theme implementation entirely
#define WX_USE_THEME(themename) \
WXDLLEXPORT_DATA(extern bool) wxThemeUse##themename; \
static struct wxThemeUserFor##themename \
{ \
wxThemeUserFor##themename() { wxThemeUse##themename = true; } \
} wxThemeDoUse##themename
// to declare a new theme, this macro must be used in the class declaration
#define WX_DECLARE_THEME(themename) \
private: \
static wxThemeInfo ms_info##themename; \
public: \
const wxThemeInfo *GetThemeInfo() const \
{ return &ms_info##themename; }
// and this one must be inserted in the source file
#define WX_IMPLEMENT_THEME(classname, themename, themedesc) \
WXDLLEXPORT_DATA(bool) wxThemeUse##themename = true; \
wxTheme *wxCtorFor##themename() { return new classname; } \
wxThemeInfo classname::ms_info##themename(wxCtorFor##themename, \
wxT( #themename ), themedesc)
#endif // _WX_UNIV_THEME_H_