xref: /petsc/src/sys/classes/draw/impls/null/drawnull.c (revision 45f3bb6e2ab689450ec389543af70463a1ef8274)

#include <petsc/private/drawimpl.h>                        /*I  "petscdraw.h" I*/

#undef __FUNCT__
#define __FUNCT__ "PetscDrawCoordinateToPixel_Null"
static PetscErrorCode PetscDrawCoordinateToPixel_Null(PetscDraw draw,PetscReal x,PetscReal y,PetscInt *i,PetscInt *j)
{
  PetscFunctionBegin;
  *i = *j = 0;
  PetscFunctionReturn(0);
}

#undef __FUNCT__
#define __FUNCT__ "PetscDrawPixelToCoordinate_Null"
static PetscErrorCode PetscDrawPixelToCoordinate_Null(PetscDraw draw,PetscInt i,PetscInt j,PetscReal *x,PetscReal *y)
{
  PetscFunctionBegin;
  *x = *y = 0;
  PetscFunctionReturn(0);
}

#undef __FUNCT__
#define __FUNCT__ "PetscDrawPoint_Null"
static PetscErrorCode PetscDrawPoint_Null(PetscDraw draw,PetscReal x,PetscReal y,int c)
{
  PetscFunctionBegin;
  PetscFunctionReturn(0);
}

#undef __FUNCT__
#define __FUNCT__ "PetscDrawPointPixel_Null"
static PetscErrorCode PetscDrawPointPixel_Null(PetscDraw draw,PetscInt x,PetscInt y,int c)
{
  PetscFunctionBegin;
  PetscFunctionReturn(0);
}

#undef __FUNCT__
#define __FUNCT__ "PetscDrawLineGetWidth_Null"
static PetscErrorCode PetscDrawLineGetWidth_Null(PetscDraw draw,PetscReal *width)
{
  PetscFunctionBegin;
  if (width) *width = 0.01;
  PetscFunctionReturn(0);
}

#undef __FUNCT__
#define __FUNCT__ "PetscDrawLine_Null"
static PetscErrorCode PetscDrawLine_Null(PetscDraw draw,PetscReal xl,PetscReal yl,PetscReal xr,PetscReal yr,int cl)
{
  PetscFunctionBegin;
  PetscFunctionReturn(0);
}

#undef __FUNCT__
#define __FUNCT__ "PetscDrawArrow_Null"
static PetscErrorCode PetscDrawArrow_Null(PetscDraw draw,PetscReal xl,PetscReal yl,PetscReal xr,PetscReal yr,int cl)
{
  PetscFunctionBegin;
  PetscFunctionReturn(0);
}

#undef __FUNCT__
#define __FUNCT__ "PetscDrawRectangle_Null"
static PetscErrorCode PetscDrawRectangle_Null(PetscDraw draw,PetscReal xl,PetscReal yl,PetscReal xr,PetscReal yr,int c1,int c2,int c3,int c4)
{
  PetscFunctionBegin;
  PetscFunctionReturn(0);
}

#undef __FUNCT__
#define __FUNCT__ "PetscDrawEllipse_Null"
static PetscErrorCode PetscDrawEllipse_Null(PetscDraw Win,PetscReal x,PetscReal y,PetscReal a,PetscReal b,int c)
{
  PetscFunctionBegin;
  PetscFunctionReturn(0);
}

#undef __FUNCT__
#define __FUNCT__ "PetscDrawTriangle_Null"
static PetscErrorCode PetscDrawTriangle_Null(PetscDraw draw,PetscReal X1,PetscReal Y_1,PetscReal X2,PetscReal Y2,PetscReal X3,PetscReal Y3,int c1,int c2,int c3)
{
  PetscFunctionBegin;
  PetscFunctionReturn(0);
}

#undef __FUNCT__
#define __FUNCT__ "PetscDrawStringGetSize_Null"
static PetscErrorCode PetscDrawStringGetSize_Null(PetscDraw draw,PetscReal *x,PetscReal  *y)
{
  PetscFunctionBegin;
  if (x) *x = 0.01;
  if (y) *y = 0.01;
  PetscFunctionReturn(0);
}

#undef __FUNCT__
#define __FUNCT__ "PetscDrawString_Null"
static PetscErrorCode PetscDrawString_Null(PetscDraw draw,PetscReal x,PetscReal y,int c,const char chrs[])
{
  PetscFunctionBegin;
  PetscFunctionReturn(0);
}

#undef __FUNCT__
#define __FUNCT__ "PetscDrawStringVertical_Null"
static PetscErrorCode PetscDrawStringVertical_Null(PetscDraw draw,PetscReal x,PetscReal y,int c,const char chrs[])
{
  PetscFunctionBegin;
  PetscFunctionReturn(0);
}

#undef __FUNCT__
#define __FUNCT__ "PetscDrawStringBoxed_Null"
static PetscErrorCode PetscDrawStringBoxed_Null(PetscDraw draw,PetscReal sxl,PetscReal syl,int sc,int bc,const char text[],PetscReal *w,PetscReal *h)
{
  PetscFunctionBegin;
  if (w) *w = 0.01;
  if (h) *h = 0.01;
  PetscFunctionReturn(0);
}

#undef __FUNCT__
#define __FUNCT__ "PetscDrawGetSingleton_Null"
static PetscErrorCode PetscDrawGetSingleton_Null(PetscDraw draw,PetscDraw *sdraw)
{
  PetscErrorCode ierr;
  PetscFunctionBegin;
  ierr = PetscDrawOpenNull(PETSC_COMM_SELF,sdraw);CHKERRQ(ierr);
  PetscFunctionReturn(0);
}

#undef __FUNCT__
#define __FUNCT__ "PetscDrawRestoreSingleton_Null"
static PetscErrorCode PetscDrawRestoreSingleton_Null(PetscDraw draw,PetscDraw *sdraw)
{
  PetscErrorCode ierr;
  PetscFunctionBegin;
  ierr = PetscDrawDestroy(sdraw);CHKERRQ(ierr);
  PetscFunctionReturn(0);
}


static struct _PetscDrawOps DvOps = { NULL,/*PetscDrawSetDoubleBuffer_Null*/
                                      NULL,/*PetscDrawFlush_Null*/
                                      PetscDrawLine_Null,
                                      NULL,/*PetscDrawLineSetWidth_Null*/
                                      PetscDrawLineGetWidth_Null,
                                      PetscDrawPoint_Null,
                                      NULL,/*PetscDrawPointSetSize_Null*/
                                      PetscDrawString_Null,
                                      PetscDrawStringVertical_Null,
                                      NULL,/*PetscDrawStringSetSize_Null*/
                                      PetscDrawStringGetSize_Null,
                                      NULL,/*PetscDrawSetViewport_Null*/
                                      NULL,/*PetscDrawClear_Null*/
                                      PetscDrawRectangle_Null,
                                      PetscDrawTriangle_Null,
                                      PetscDrawEllipse_Null,
                                      NULL,/*PetscDrawGetMouseButton_Null*/
                                      NULL,/*PetscDrawPause_Null*/
                                      NULL,/*PetscDrawBeginPage_Null*/
                                      NULL,/*PetscDrawEndPage_Null*/
                                      NULL,/*PetscDrawGetPopup_Null*/
                                      NULL,/*PetscDrawSetTitle_Null*/
                                      NULL,/*PetscDrawCheckResizedWindow_Null*/
                                      NULL,/*PetscDrawResizeWindow_Null*/
                                      NULL,/*PetscDrawDestroy_Null*/
                                      NULL,/*PetscDrawView_Null*/
                                      PetscDrawGetSingleton_Null,
                                      PetscDrawRestoreSingleton_Null,
                                      NULL,/*PetscDrawSave_Null*/
                                      NULL,/*PetscDrawGetImage_Null*/
                                      NULL,/*PetscDrawSetCoordinates_Null*/
                                      PetscDrawArrow_Null,
                                      PetscDrawCoordinateToPixel_Null,
                                      PetscDrawPixelToCoordinate_Null,
                                      PetscDrawPointPixel_Null,
                                      PetscDrawStringBoxed_Null};


/*MC
     PETSC_DRAW_NULL - PETSc graphics device that ignores all draw commands

   Level: beginner

.seealso:  PetscDrawOpenNull(), PetscDrawIsNull()
M*/
PETSC_EXTERN PetscErrorCode PetscDrawCreate_Null(PetscDraw);

#undef __FUNCT__
#define __FUNCT__ "PetscDrawCreate_Null"
PETSC_EXTERN PetscErrorCode PetscDrawCreate_Null(PetscDraw draw)
{
  PetscErrorCode ierr;
  PetscFunctionBegin;
  draw->pause   = 0;
  draw->coor_xl = 0; draw->coor_xr = 1;
  draw->coor_yl = 0; draw->coor_yr = 1;
  draw->port_xl = 0; draw->port_xr = 1;
  draw->port_yl = 0; draw->port_yr = 1;
  ierr = PetscDrawDestroy(&draw->popup);CHKERRQ(ierr);

  ierr = PetscMemcpy(draw->ops,&DvOps,sizeof(DvOps));CHKERRQ(ierr);
  draw->data = NULL;
  PetscFunctionReturn(0);
}

#undef __FUNCT__
#define __FUNCT__ "PetscDrawOpenNull"
/*@
   PetscDrawOpenNull - Opens a null drawing context. All draw commands to
   it are ignored.

   Output Parameter:
.  draw - the drawing context

   Level: advanced
@*/
PetscErrorCode  PetscDrawOpenNull(MPI_Comm comm,PetscDraw *win)
{
  PetscErrorCode ierr;

  PetscFunctionBegin;
  ierr = PetscDrawCreate(comm,NULL,NULL,0,0,1,1,win);CHKERRQ(ierr);
  ierr = PetscDrawSetType(*win,PETSC_DRAW_NULL);CHKERRQ(ierr);
  PetscFunctionReturn(0);
}

#undef __FUNCT__
#define __FUNCT__ "PetscDrawIsNull"
/*@
   PetscDrawIsNull - Returns PETSC_TRUE if draw is a null draw object.

   Not collective

   Input Parameter:
.  draw - the draw context

   Output Parameter:
.  yes - PETSC_TRUE if it is a null draw object; otherwise PETSC_FALSE

   Level: advanced
@*/
PetscErrorCode  PetscDrawIsNull(PetscDraw draw,PetscBool *yes)
{
  PetscErrorCode ierr;

  PetscFunctionBegin;
  PetscValidHeaderSpecific(draw,PETSC_DRAW_CLASSID,1);
  PetscValidIntPointer(yes,2);
  ierr = PetscObjectTypeCompare((PetscObject)draw,PETSC_DRAW_NULL,yes);CHKERRQ(ierr);
  PetscFunctionReturn(0);
}