202 lines
7.3 KiB
C
202 lines
7.3 KiB
C
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///////////////////////////////////////////////////////////////////////////////
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// Name: wx/univ/theme.h
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// Purpose: wxTheme class manages all configurable aspects of the
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// application including the look (wxRenderer), feel
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// (wxInputHandler) and the colours (wxColourScheme)
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// Author: Vadim Zeitlin
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// Modified by:
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// Created: 06.08.00
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// Copyright: (c) 2000 SciTech Software, Inc. (www.scitechsoft.com)
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_UNIV_THEME_H_
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#define _WX_UNIV_THEME_H_
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#include "wx/string.h"
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// ----------------------------------------------------------------------------
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// wxTheme
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_FWD_CORE wxArtProvider;
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class WXDLLIMPEXP_FWD_CORE wxColourScheme;
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class WXDLLIMPEXP_FWD_CORE wxInputConsumer;
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class WXDLLIMPEXP_FWD_CORE wxInputHandler;
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class WXDLLIMPEXP_FWD_CORE wxRenderer;
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struct WXDLLIMPEXP_FWD_CORE wxThemeInfo;
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class WXDLLIMPEXP_CORE wxTheme
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{
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public:
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// static methods
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// --------------
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// create the default theme
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static bool CreateDefault();
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// create the theme by name (will return NULL if not found)
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static wxTheme *Create(const wxString& name);
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// change the current scheme
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static wxTheme *Set(wxTheme *theme);
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// get the current theme (never NULL)
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static wxTheme *Get() { return ms_theme; }
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// the theme methods
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// -----------------
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// get the renderer implementing all the control-drawing operations in
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// this theme
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virtual wxRenderer *GetRenderer() = 0;
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// get the art provider to be used together with this theme
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virtual wxArtProvider *GetArtProvider() = 0;
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// get the input handler of the given type, forward to the standard one
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virtual wxInputHandler *GetInputHandler(const wxString& handlerType,
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wxInputConsumer *consumer) = 0;
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// get the colour scheme for the control with this name
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virtual wxColourScheme *GetColourScheme() = 0;
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// implementation only from now on
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// -------------------------------
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virtual ~wxTheme();
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private:
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// the list of descriptions of all known themes
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static wxThemeInfo *ms_allThemes;
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// the current theme
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static wxTheme *ms_theme;
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friend struct wxThemeInfo;
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};
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// ----------------------------------------------------------------------------
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// wxDelegateTheme: it is impossible to inherit from any of standard
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// themes as their declarations are in private code, but you can use this
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// class to override only some of their functions - all the other ones
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// will be left to the original theme
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_CORE wxDelegateTheme : public wxTheme
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{
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public:
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wxDelegateTheme(const wxString& theme);
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virtual ~wxDelegateTheme();
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virtual wxRenderer *GetRenderer();
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virtual wxArtProvider *GetArtProvider();
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virtual wxInputHandler *GetInputHandler(const wxString& control,
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wxInputConsumer *consumer);
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virtual wxColourScheme *GetColourScheme();
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protected:
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// gets or creates theme and sets m_theme to point to it,
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// returns true on success
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bool GetOrCreateTheme();
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wxString m_themeName;
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wxTheme *m_theme;
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};
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// ----------------------------------------------------------------------------
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// dynamic theme creation helpers
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// ----------------------------------------------------------------------------
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struct WXDLLIMPEXP_CORE wxThemeInfo
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{
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typedef wxTheme *(*Constructor)();
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// theme name and (user readable) description
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wxString name, desc;
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// the function to create a theme object
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Constructor ctor;
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// next node in the linked list or NULL
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wxThemeInfo *next;
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// constructor for the struct itself
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wxThemeInfo(Constructor ctor, const wxString& name, const wxString& desc);
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};
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// ----------------------------------------------------------------------------
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// macros
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// ----------------------------------------------------------------------------
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// to use a standard theme insert this macro into one of the application files:
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// without it, an over optimizing linker may discard the object module
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// containing the theme implementation entirely
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#define WX_USE_THEME(themename) \
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/* this indirection makes it possible to pass macro as the argument */ \
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WX_USE_THEME_IMPL(themename)
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#define WX_USE_THEME_IMPL(themename) \
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extern WXDLLIMPEXP_DATA_CORE(bool) wxThemeUse##themename; \
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static struct wxThemeUserFor##themename \
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{ \
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wxThemeUserFor##themename() { wxThemeUse##themename = true; } \
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} wxThemeDoUse##themename
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// to declare a new theme, this macro must be used in the class declaration
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#define WX_DECLARE_THEME(themename) \
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private: \
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static wxThemeInfo ms_info##themename; \
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public: \
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const wxThemeInfo *GetThemeInfo() const \
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{ return &ms_info##themename; }
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// and this one must be inserted in the source file
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#define WX_IMPLEMENT_THEME(classname, themename, themedesc) \
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WXDLLIMPEXP_DATA_CORE(bool) wxThemeUse##themename = true; \
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wxTheme *wxCtorFor##themename() { return new classname; } \
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wxThemeInfo classname::ms_info##themename(wxCtorFor##themename, \
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wxT( #themename ), themedesc)
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// ----------------------------------------------------------------------------
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// determine default theme
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// ----------------------------------------------------------------------------
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#if wxUSE_ALL_THEMES
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#undef wxUSE_THEME_WIN32
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#define wxUSE_THEME_WIN32 1
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#undef wxUSE_THEME_GTK
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#define wxUSE_THEME_GTK 1
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#undef wxUSE_THEME_MONO
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#define wxUSE_THEME_MONO 1
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#undef wxUSE_THEME_METAL
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#define wxUSE_THEME_METAL 1
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#endif // wxUSE_ALL_THEMES
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// determine the default theme to use:
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#if defined(__WXGTK__) && wxUSE_THEME_GTK
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#define wxUNIV_DEFAULT_THEME gtk
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#elif defined(__WXDFB__) && wxUSE_THEME_MONO
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// use mono theme for DirectFB port because it cannot correctly
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// render neither win32 nor gtk themes yet:
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#define wxUNIV_DEFAULT_THEME mono
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#endif
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// if no theme was picked, get any theme compiled in (sorted by
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// quality/completeness of the theme):
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#ifndef wxUNIV_DEFAULT_THEME
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#if wxUSE_THEME_WIN32
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#define wxUNIV_DEFAULT_THEME win32
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#elif wxUSE_THEME_GTK
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#define wxUNIV_DEFAULT_THEME gtk
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#elif wxUSE_THEME_MONO
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#define wxUNIV_DEFAULT_THEME mono
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#endif
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// If nothing matches, no themes are compiled and the app must provide
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// some theme itself
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// (note that wxUSE_THEME_METAL depends on win32 theme, so we don't have to
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// try it)
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//
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#endif // !wxUNIV_DEFAULT_THEME
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#endif // _WX_UNIV_THEME_H_
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