Actual source code: dclear.c

petsc-3.8.3 2017-12-09
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  1: /*
  2:        Provides the calling sequences for all the basic PetscDraw routines.
  3: */
  4:  #include <petsc/private/drawimpl.h>

  6: /*@
  7:    PetscDrawClear - Clears graphical output. All processors must call this routine.
  8:    Does not return until the draw in context is clear.

 10:    Collective on PetscDraw

 12:    Input Parameters:
 13: .  draw - the drawing context

 15:    Level: intermediate

 17:    Concepts: clear^window

 19: @*/
 20: PetscErrorCode  PetscDrawClear(PetscDraw draw)
 21: {

 26:   if (draw->saveonclear) {PetscDrawSave(draw);}
 27:   if (draw->ops->clear) {
 28:     (*draw->ops->clear)(draw);
 29:   }
 30:   return(0);
 31: }

 33: /*@
 34:    PetscDrawBOP - Begins a new page or frame on the selected graphical device.

 36:    Logically Collective on PetscDraw

 38:    Input Parameter:
 39: .  draw - the drawing context

 41:    Level: advanced

 43: .seealso: PetscDrawEOP(), PetscDrawClear()
 44: @*/
 45: PetscErrorCode  PetscDrawBOP(PetscDraw draw)
 46: {

 51:   if (draw->ops->beginpage) {
 52:     (*draw->ops->beginpage)(draw);
 53:   }
 54:   return(0);
 55: }
 56: /*@
 57:    PetscDrawEOP - Ends a page or frame on the selected graphical device.

 59:    Logically Collective on PetscDraw

 61:    Input Parameter:
 62: .  draw - the drawing context

 64:    Level: advanced

 66: .seealso: PetscDrawBOP(), PetscDrawClear()
 67: @*/
 68: PetscErrorCode  PetscDrawEOP(PetscDraw draw)
 69: {

 74:   if (draw->ops->endpage) {
 75:      (*draw->ops->endpage)(draw);
 76:   }
 77:   return(0);
 78: }