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/** \file
* \brief CD Void driver for error checking while there is no active canvas
*
* See Copyright Notice in cd.h
*/
#include <stdlib.h>
#include <stdio.h>
#include "cd.h"
#include "cd_private.h"
#include <lua.h>
#include <lauxlib.h>
#include "cdlua5_private.h"
struct _cdCtxCanvas
{
cdCanvas* canvas;
lua_State * L;
};
void cdlua_setvoidstate(cdCanvas* canvas, lua_State * L)
{
canvas->ctxcanvas->L = L;
}
static void cdcreatecanvas(cdCanvas *canvas, void *data)
{
cdCtxCanvas *ctxcanvas = (cdCtxCanvas*) malloc(sizeof(cdCtxCanvas));
ctxcanvas->canvas = canvas;
canvas->ctxcanvas = ctxcanvas;
(void)data;
}
static void cdkillcanvas(cdCtxCanvas* ctxcanvas)
{
free(ctxcanvas);
}
/***************************************************************************\
* Echos an error if called. *
\***************************************************************************/
static void cdvoid_error(cdCtxCanvas* ctxcanvas)
{
luaL_error(ctxcanvas->L, "cdlua: there is no active canvas");
}
/***************************************************************************\
* Dummy. *
\***************************************************************************/
static int cdvoid_dummy(void)
{
return CD_OK;
}
/***************************************************************************\
* Driver function table. *
\***************************************************************************/
void cdinittable(cdCanvas* canvas)
{
/* attribute functions can not be set, because of default attributes */
canvas->cxClip = (int (*)(cdCtxCanvas*, int))cdvoid_error;
canvas->cxClipArea = (void (*)(cdCtxCanvas*, int, int, int, int))cdvoid_error;
canvas->cxNewRegion = (void (*)(cdCtxCanvas*))cdvoid_error;
canvas->cxIsPointInRegion = (int (*)(cdCtxCanvas*, int, int))cdvoid_error;
canvas->cxOffsetRegion = (void (*)(cdCtxCanvas*, int, int))cdvoid_error;
canvas->cxGetRegionBox = (void (*)(cdCtxCanvas*, int *, int *, int *, int *))cdvoid_error;
canvas->cxFlush = (void ( *)(cdCtxCanvas*))cdvoid_error;
canvas->cxClear = (void ( *)(cdCtxCanvas*))cdvoid_error;
canvas->cxPixel = (void ( *)(cdCtxCanvas*, int ,int ,long ))cdvoid_error;
canvas->cxLine = (void ( *)(cdCtxCanvas*, int ,int ,int ,int ))cdvoid_error;
canvas->cxPoly = (void ( *)(cdCtxCanvas*, int ,struct _cdPoint *,int ))cdvoid_error;
canvas->cxRect = (void ( *)(cdCtxCanvas*, int ,int ,int ,int ))cdvoid_error;
canvas->cxBox = (void ( *)(cdCtxCanvas*, int ,int ,int ,int ))cdvoid_error;
canvas->cxArc = (void ( *)(cdCtxCanvas*, int ,int ,int ,int ,double ,double ))cdvoid_error;
canvas->cxSector = (void ( *)(cdCtxCanvas*, int ,int ,int ,int ,double ,double ))cdvoid_error;
canvas->cxChord = (void ( *)(cdCtxCanvas*, int ,int ,int ,int ,double ,double ))cdvoid_error;
canvas->cxText = (void (*)(cdCtxCanvas*, int ,int ,const char *))cdvoid_error;
canvas->cxGetFontDim = (void (*)(cdCtxCanvas*, int *,int *,int *,int *))cdvoid_error;
canvas->cxGetTextSize = (void (*)(cdCtxCanvas*, const char *,int *,int *))cdvoid_error;
canvas->cxPutImageRectRGB = (void (*)(cdCtxCanvas*, int ,int ,const unsigned char *,const unsigned char *,const unsigned char *,int ,int ,int ,int ,int ,int ,int ,int ))cdvoid_error;
canvas->cxPutImageRectRGBA = (void (*)(cdCtxCanvas*, int ,int ,const unsigned char *,const unsigned char *,const unsigned char *,const unsigned char *,int ,int ,int ,int ,int ,int ,int ,int ))cdvoid_error;
canvas->cxPutImageRectMap = (void (*)(cdCtxCanvas*, int ,int ,const unsigned char *,const long *,int ,int ,int ,int ,int ,int ,int ,int ))cdvoid_error;
canvas->cxScrollArea = (void (*)(cdCtxCanvas*, int ,int ,int ,int ,int ,int ))cdvoid_error;
canvas->cxFLine = (void (*)(cdCtxCanvas*, double ,double ,double ,double ))cdvoid_error;
canvas->cxFPoly = (void (*)(cdCtxCanvas*, int , cdfPoint*,int ))cdvoid_error;
canvas->cxFRect = (void (*)(cdCtxCanvas*, double ,double ,double ,double ))cdvoid_error;
canvas->cxFBox = (void (*)(cdCtxCanvas*, double ,double ,double ,double ))cdvoid_error;
canvas->cxFArc = (void (*)(cdCtxCanvas*, double ,double ,double ,double ,double ,double ))cdvoid_error;
canvas->cxFSector = (void (*)(cdCtxCanvas*, double ,double ,double ,double ,double ,double ))cdvoid_error;
canvas->cxFText = (void (*)(cdCtxCanvas*, double ,double ,const char *))cdvoid_error;
canvas->cxStipple = (void (*)(cdCtxCanvas*, int ,int ,const unsigned char *))cdvoid_error;
canvas->cxPattern = (void (*)(cdCtxCanvas*, int ,int , const long *))cdvoid_error;
canvas->cxNativeFont = (int (*)(cdCtxCanvas*, const char*))cdvoid_error;
canvas->cxPalette = (void (*)(cdCtxCanvas*, int ,const long *,int ))cdvoid_error;
canvas->cxGetImageRGB = (void (*)(cdCtxCanvas*, unsigned char *,unsigned char *,unsigned char *,int ,int ,int ,int ))cdvoid_error;
canvas->cxCreateImage = (cdCtxImage* (*)(cdCtxCanvas*, int ,int ))cdvoid_error;
canvas->cxGetImage = (void (*)(cdCtxCanvas*, cdCtxImage*, int ,int ))cdvoid_error;
canvas->cxPutImageRect = (void (*)(cdCtxCanvas*, cdCtxImage*,int ,int ,int ,int ,int ,int ))cdvoid_error;
canvas->cxKillImage = (void (*)(cdCtxImage*))cdvoid_error;
canvas->cxFClipArea = (void (*)(cdCtxCanvas*, double,double,double,double))cdvoid_error;
/* must not be the error callback */
canvas->cxActivate = (int (*)(cdCtxCanvas*))cdvoid_dummy;
canvas->cxDeactivate = (void (*)(cdCtxCanvas*))cdvoid_dummy;
canvas->cxFont = (int (*)(cdCtxCanvas*, const char *, int, int))cdvoid_dummy;
canvas->cxKillCanvas = cdkillcanvas;
}
static cdContext cdVoidContext =
{
0,
0,
cdcreatecanvas,
cdinittable,
NULL,
NULL
};
cdContext* cdContextVoid(void)
{
return &cdVoidContext;
}
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