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#include "sys-defines.h"
#include "extern.h"
bool
#ifdef _HAVE_PROTOS
_i_erase_page (S___(Plotter *_plotter))
#else
_i_erase_page (S___(_plotter))
S___(Plotter *_plotter;)
#endif
{
/* If we're animating, emit the GIF header, and emit the just-finished
frame as one of the images in the animated GIF. But don't do this
for the zeroth frame unless it's nonempty. */
if (_plotter->i_animation && _plotter->data->page_number == 1 && _plotter->data->outfp
&& (_plotter->data->frame_number > 0 || _plotter->i_frame_nonempty))
{
if (_plotter->i_header_written == false)
{
_i_write_gif_header (S___(_plotter));
_plotter->i_header_written = true;
}
/* emit image using RLE module (see i_rle.c) */
_i_write_gif_image (S___(_plotter));
}
/* delete image: deallocate frame's libxmi canvas, reset frame's color
table */
_i_delete_image (S___(_plotter));
/* Create new image, consisting of libxmi canvas and colormap;
initialized to background color. First entries in the color table
will be (1) transparent color [if there is one, and we're animating]
and (2) background color. */
_i_new_image (S___(_plotter));
/* next frame will start empty */
_plotter->i_frame_nonempty = false;
return true;
}
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