audacia/src/MacroMagic.h

69 lines
2.1 KiB
C

/**********************************************************************
Audacity: A Digital Audio Editor
MacroMagic.h
James Crook
Audacity is free software.
This file is licensed under the wxWidgets license, see License.txt
********************************************************************//*!
\file MacroMagic.h
This file allows the same macros to do multiple duty by undefining
and redefining the macros.
For example DEFINE_IMAGE will generate:
- extern int name;
- int name = -1;
- RegisterImage( name, initialiser, textual_name);
On three different passes. We control which by defining one of
THEME_INITS or THEME_DECLARATIONS or neither of these.
*//*******************************************************************/
using teBmps = int; /// The index of a bitmap resource in Theme Resources.
// undefine the macros.
#undef DEFINE_IMAGE
#undef DEFINE_COLOUR
#undef DEFINE_FONT
#undef SET_THEME_FLAGS
#define THEME_EXTERNS
#ifdef THEME_INITS
#define DEFINE_IMAGE( name, initialiser, textual_name ) \
theTheme.RegisterImage( name, initialiser, textual_name );
#define DEFINE_COLOUR( name, initialiser, textual_name )\
theTheme.RegisterColour( name, initialiser, textual_name );
#define DEFINE_FONT( name, initialiser, textual_name ) \
theTheme.RegisterFont( name, initialiser, textual_name );
#define SET_THEME_FLAGS( flags ) theTheme.SetFlags( flags );
#undef THEME_DECLARATIONS
#undef THEME_EXTERNS
#endif
#ifdef THEME_DECLARATIONS
#define DEFINE_IMAGE( name, initialiser, textual_name ) AUDACITY_DLL_API teBmps name=-1;
#define DEFINE_COLOUR( name, initialiser, textual_name ) AUDACITY_DLL_API int name=-1;
#define DEFINE_FONT( name, initialiser, textual_name ) AUDACITY_DLL_API int name=-1;
#define SET_THEME_FLAGS( flags )
#undef THEME_INITS
#undef THEME_EXTERNS
#endif
#ifdef THEME_EXTERNS
#define DEFINE_IMAGE( name, initialiser, textual_name ) extern AUDACITY_DLL_API teBmps name;
#define DEFINE_COLOUR( name, initialiser, textual_name ) extern AUDACITY_DLL_API int name;
#define DEFINE_FONT( name, initialiser, textual_name ) extern AUDACITY_DLL_API int name;
#define SET_THEME_FLAGS( flags )
#endif