Actual source code: drawopenx.c

  1: /*
  2:     Defines the operations for the X PetscDraw implementation.
  3: */

 5:  #include src/sys/src/draw/impls/x/ximpl.h

  9: /*@C
 10:    PetscDrawOpenX - Opens an X-window for use with the PetscDraw routines.

 12:    Collective on MPI_Comm

 14:    Input Parameters:
 15: +  comm - the communicator that will share X-window
 16: .  display - the X display on which to open,or null for the local machine
 17: .  title - the title to put in the title bar,or null for no title
 18: .  x,y - the screen coordinates of the upper left corner of window
 19:           may use PETSC_DECIDE for these two arguments, then PETSc places the 
 20:           window
 21: -  w, h - the screen width and height in pixels,  or PETSC_DRAW_HALF_SIZE, PETSC_DRAW_FULL_SIZE,
 22:           or PETSC_DRAW_THIRD_SIZE or PETSC_DRAW_QUARTER_SIZE

 24:    Output Parameters:
 25: .  draw - the drawing context.

 27:    Options Database Keys:
 28: +  -nox - Disables all x-windows output
 29: .  -display <name> - Sets name of machine for the X display
 30: .  -draw_pause <pause> - Sets time (in seconds) that the
 31:        program pauses after PetscDrawPause() has been called
 32:        (0 is default, -1 implies until user input).
 33: .  -draw_x_shared_colormap - Causes PETSc to use a shared
 34:        colormap. By default PETSc creates a seperate color 
 35:        for its windows, you must put the mouse into the graphics 
 36:        window to see  the correct colors. This options forces
 37:        PETSc to use the default colormap which will usually result
 38:        in bad contour plots.
 39: .  -draw_fast - does not create colormap for countour plots
 40: .  -draw_double_buffer - Uses double buffering for smooth animation.
 41: -  -geometry - Indicates location and size of window

 43:    Level: beginner

 45:    Note:
 46:    When finished with the drawing context, it should be destroyed
 47:    with PetscDrawDestroy().

 49:    Note for Fortran Programmers:
 50:    Whenever indicating null character data in a Fortran code,
 51:    PETSC_NULL_CHARACTER must be employed; using PETSC_NULL is not
 52:    correct for character data!  Thus, PETSC_NULL_CHARACTER can be
 53:    used for the display and title input parameters.

 55:    Concepts: X windows^drawing to

 57: .seealso: PetscDrawSynchronizedFlush(), PetscDrawDestroy()
 58: @*/
 59: PetscErrorCode PetscDrawOpenX(MPI_Comm comm,const char display[],const char title[],int x,int y,int w,int h,PetscDraw* draw)
 60: {

 64:   PetscDrawCreate(comm,display,title,x,y,w,h,draw);
 65:   PetscDrawSetType(*draw,PETSC_DRAW_X);
 66:   return(0);
 67: }