1 files changed, 130 insertions, 0 deletions
diff --git a/src/lua5/cdvoid5.c b/src/lua5/cdvoid5.c
new file mode 100644
index 0000000..2424e1d
--- /dev/null
+++ b/src/lua5/cdvoid5.c
@@ -0,0 +1,130 @@
+/** \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;
+}
+