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/* This file is part of the GNU plotutils package. Copyright (C) 1995,
1996, 1997, 1998, 1999, 2000, 2005, 2008, Free Software Foundation, Inc.
The GNU plotutils package is free software. You may redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software foundation; either version 2, or (at your
option) any later version.
The GNU plotutils package is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License along
with the GNU plotutils package; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 51 Franklin St., Fifth Floor,
Boston, MA 02110-1301, USA. */
#include "sys-defines.h"
#include "extern.h"
bool
_pl_c_erase_page (S___(Plotter *_plotter))
{
int i;
/* reinitialize `font used' array(s) for this page */
for (i = 0; i < PL_NUM_PS_FONTS; i++)
_plotter->data->page->ps_font_used[i] = false;
/* deallocate table of user-specified line types, if any */
if (_plotter->data->page->extra)
{
plCGMCustomLineType *linetype_ptr = (plCGMCustomLineType *)_plotter->data->page->extra;
plCGMCustomLineType *old_linetype_ptr;
while (linetype_ptr)
{
if (linetype_ptr->dash_array_len > 0 /* paranoia */
&& linetype_ptr->dashes)
free (linetype_ptr->dashes);
old_linetype_ptr = linetype_ptr;
linetype_ptr = linetype_ptr->next;
free (old_linetype_ptr);
}
_plotter->data->page->extra = (void *)NULL;
}
/* reset other page-specific, i.e. picture-specific, CGMPlotter
variables, as if the page had just been opened */
_plotter->cgm_page_version = 1;
_plotter->cgm_page_profile = CGM_PROFILE_WEB;
_plotter->cgm_page_need_color = false;
/* colors */
_plotter->cgm_line_color.red = -1;
_plotter->cgm_line_color.green = -1;
_plotter->cgm_line_color.blue = -1;
_plotter->cgm_edge_color.red = -1;
_plotter->cgm_edge_color.green = -1;
_plotter->cgm_edge_color.blue = -1;
_plotter->cgm_fillcolor.red = -1;
_plotter->cgm_fillcolor.green = -1;
_plotter->cgm_fillcolor.blue = -1;
_plotter->cgm_marker_color.red = -1;
_plotter->cgm_marker_color.green = -1;
_plotter->cgm_marker_color.blue = -1;
_plotter->cgm_text_color.red = -1;
_plotter->cgm_text_color.green = -1;
_plotter->cgm_text_color.blue = -1;
_plotter->cgm_bgcolor.red = -1;
_plotter->cgm_bgcolor.green = -1;
_plotter->cgm_bgcolor.blue = -1;
/* other dynamic variables */
_plotter->cgm_line_type = CGM_L_SOLID;
_plotter->cgm_dash_offset = 0.0;
_plotter->cgm_join_style = CGM_JOIN_UNSPEC;
_plotter->cgm_cap_style = CGM_CAP_UNSPEC;
_plotter->cgm_dash_cap_style = CGM_CAP_UNSPEC;
/* CGM's default line width: 1/1000 times the max VDC dimension */
_plotter->cgm_line_width = (1 << (8*CGM_BINARY_BYTES_PER_INTEGER - 3)) / 500;
_plotter->cgm_interior_style = CGM_INT_STYLE_HOLLOW;
_plotter->cgm_edge_type = CGM_L_SOLID;
_plotter->cgm_edge_dash_offset = 0.0;
_plotter->cgm_edge_join_style = CGM_JOIN_UNSPEC;
_plotter->cgm_edge_cap_style = CGM_CAP_UNSPEC;
_plotter->cgm_edge_dash_cap_style = CGM_CAP_UNSPEC;
/* CGM's default edge width: 1/1000 times the max VDC dimension */
_plotter->cgm_edge_width = (1 << (8*CGM_BINARY_BYTES_PER_INTEGER - 3)) / 500;
_plotter->cgm_edge_is_visible = false;
_plotter->cgm_miter_limit = 32767.0;
_plotter->cgm_marker_type = CGM_M_ASTERISK;
/* CGM's default marker size: 1/1000 times the max VDC dimension */
_plotter->cgm_marker_size = (1 << (8*CGM_BINARY_BYTES_PER_INTEGER - 3)) /500;
/* label-related variables */
_plotter->cgm_char_height = -1; /* impossible (dummy) value */
_plotter->cgm_char_base_vector_x = 1;
_plotter->cgm_char_base_vector_y = 0;
_plotter->cgm_char_up_vector_x = 0;
_plotter->cgm_char_up_vector_y = 1;
_plotter->cgm_horizontal_text_alignment = CGM_ALIGN_NORMAL_HORIZONTAL;
_plotter->cgm_vertical_text_alignment = CGM_ALIGN_NORMAL_VERTICAL;
_plotter->cgm_font_id = -1; /* impossible (dummy) value */
_plotter->cgm_charset_lower = 0; /* dummy value (we use values 1..4) */
_plotter->cgm_charset_upper = 0; /* dummy value (we use values 1..4) */
_plotter->cgm_restricted_text_type = CGM_RESTRICTED_TEXT_TYPE_BASIC;
/* copy the bg color currently in the drawing state to the CGM-specific
part of the CGMPlotter; it'll be written to the output file at the
head of the picture */
_pl_c_set_bg_color (S___(_plotter));
return true;
}
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