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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
// Copyright: (c) 2000 SciTech Software, Inc. (www.scitechsoft.com)
// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
#ifndef _WX_UNIV_THEME_H_
#define _WX_UNIV_THEME_H_
#include "wx/string.h"
// ----------------------------------------------------------------------------
// wxTheme
// ----------------------------------------------------------------------------
class WXDLLIMPEXP_FWD_CORE wxArtProvider;
class WXDLLIMPEXP_FWD_CORE wxColourScheme;
class WXDLLIMPEXP_FWD_CORE wxInputConsumer;
class WXDLLIMPEXP_FWD_CORE wxInputHandler;
class WXDLLIMPEXP_FWD_CORE wxRenderer;
struct WXDLLIMPEXP_FWD_CORE wxThemeInfo;
class WXDLLIMPEXP_CORE 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, forward to the standard one
virtual wxInputHandler *GetInputHandler(const wxString& handlerType,
wxInputConsumer *consumer) = 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 wxThemeInfo;
};
// ----------------------------------------------------------------------------
// wxDelegateTheme: it is impossible to inherit from any of standard
// themes as their declarations are in private code, but you can use this
// class to override only some of their functions - all the other ones
// will be left to the original theme
// ----------------------------------------------------------------------------
class WXDLLIMPEXP_CORE wxDelegateTheme : public wxTheme
{
public:
wxDelegateTheme(const wxString& theme);
virtual ~wxDelegateTheme();
virtual wxRenderer *GetRenderer();
virtual wxArtProvider *GetArtProvider();
virtual wxInputHandler *GetInputHandler(const wxString& control,
wxInputConsumer *consumer);
virtual wxColourScheme *GetColourScheme();
protected:
// gets or creates theme and sets m_theme to point to it,
// returns true on success
bool GetOrCreateTheme();
wxString m_themeName;
wxTheme *m_theme;
};
// ----------------------------------------------------------------------------
// dynamic theme creation helpers
// ----------------------------------------------------------------------------
struct WXDLLIMPEXP_CORE 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 wxString& name, const wxString& 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) \
/* this indirection makes it possible to pass macro as the argument */ \
WX_USE_THEME_IMPL(themename)
#define WX_USE_THEME_IMPL(themename) \
extern WXDLLIMPEXP_DATA_CORE(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) \
WXDLLIMPEXP_DATA_CORE(bool) wxThemeUse##themename = true; \
wxTheme *wxCtorFor##themename() { return new classname; } \
wxThemeInfo classname::ms_info##themename(wxCtorFor##themename, \
wxT( #themename ), themedesc)
// ----------------------------------------------------------------------------
// determine default theme
// ----------------------------------------------------------------------------
#if wxUSE_ALL_THEMES
#undef wxUSE_THEME_WIN32
#define wxUSE_THEME_WIN32 1
#undef wxUSE_THEME_GTK
#define wxUSE_THEME_GTK 1
#undef wxUSE_THEME_MONO
#define wxUSE_THEME_MONO 1
#undef wxUSE_THEME_METAL
#define wxUSE_THEME_METAL 1
#endif // wxUSE_ALL_THEMES
// determine the default theme to use:
#if defined(__WXGTK__) && wxUSE_THEME_GTK
#define wxUNIV_DEFAULT_THEME gtk
#elif defined(__WXDFB__) && wxUSE_THEME_MONO
// use mono theme for DirectFB port because it cannot correctly
// render neither win32 nor gtk themes yet:
#define wxUNIV_DEFAULT_THEME mono
#endif
// if no theme was picked, get any theme compiled in (sorted by
// quality/completeness of the theme):
#ifndef wxUNIV_DEFAULT_THEME
#if wxUSE_THEME_WIN32
#define wxUNIV_DEFAULT_THEME win32
#elif wxUSE_THEME_GTK
#define wxUNIV_DEFAULT_THEME gtk
#elif wxUSE_THEME_MONO
#define wxUNIV_DEFAULT_THEME mono
#endif
// If nothing matches, no themes are compiled and the app must provide
// some theme itself
// (note that wxUSE_THEME_METAL depends on win32 theme, so we don't have to
// try it)
//
#endif // !wxUNIV_DEFAULT_THEME
#endif // _WX_UNIV_THEME_H_
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