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- /* Copyright (C) 1989, 1992, 1993 Aladdin Enterprises. All rights reserved.
-
- This file is part of Ghostscript.
-
- Ghostscript is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY. No author or distributor accepts responsibility
- to anyone for the consequences of using it or for whether it serves any
- particular purpose or works at all, unless he says so in writing. Refer
- to the Ghostscript General Public License for full details.
-
- Everyone is granted permission to copy, modify and redistribute
- Ghostscript, but only under the conditions described in the Ghostscript
- General Public License. A copy of this license is supposed to have been
- given to you along with Ghostscript so you can know your rights and
- responsibilities. It should be in a file named COPYING. Among other
- things, the copyright notice and this notice must be preserved on all
- copies. */
-
- /* gspaint.c */
- /* Painting procedures for Ghostscript library */
- #include "gx.h"
- #include "gpcheck.h"
- #include "gserrors.h"
- #include "gxfixed.h"
- #include "gxmatrix.h" /* for gs_state */
- #include "gspaint.h"
- #include "gzpath.h"
- #include "gzstate.h"
- #include "gzdevice.h"
- #include "gzcolor.h"
- #include "gxcpath.h"
- #include "gxdevmem.h"
- #include "gximage.h"
-
- /* Erase the page */
- int
- gs_erasepage(gs_state *pgs)
- { device *pdev = pgs->device;
- gx_device *dev = pdev->info;
- return (*dev->procs->fill_rectangle)(dev, 0, 0, dev->width, dev->height, pdev->white);
- }
-
- /* Fill using the winding number rule */
- int
- gs_fill(gs_state *pgs)
- { int code;
- /* If we're inside a charpath, just merge the current path */
- /* into the parent's path. */
- if ( pgs->in_charpath )
- code = gx_path_add_path(pgs->show_gstate->path, pgs->path);
- else
- { gx_color_load(pgs->dev_color, pgs);
- code = gx_fill_path(pgs->path, pgs->dev_color, pgs,
- gx_rule_winding_number, fixed_0);
- if ( !code ) gs_newpath(pgs);
- }
- return code;
- }
-
- /* Fill using the even/odd rule */
- int
- gs_eofill(gs_state *pgs)
- { int code;
- /* If we're inside a charpath, just merge the current path */
- /* into the parent's path. */
- if ( pgs->in_charpath )
- code = gx_path_add_path(pgs->show_gstate->path, pgs->path);
- else
- { gx_color_load(pgs->dev_color, pgs);
- code = gx_fill_path(pgs->path, pgs->dev_color, pgs,
- gx_rule_even_odd, fixed_0);
- if ( !code ) gs_newpath(pgs);
- }
- return code;
- }
-
- /* Stroke the current path */
- int
- gs_stroke(gs_state *pgs)
- { int code;
- /* If we're inside a charpath, just merge the current path */
- /* into the parent's path. */
- if ( pgs->in_charpath )
- code = gx_path_add_path(pgs->show_gstate->path, pgs->path);
- else
- { gx_color_load(pgs->dev_color, pgs);
- code = gx_stroke_fill(pgs->path, pgs);
- if ( !code ) gs_newpath(pgs);
- }
- return code;
- }
-
- /* Compute the stroked outline of the current path */
- int
- gs_strokepath(gs_state *pgs)
- { gx_path spath;
- int code;
- gx_path_init(&spath, pgs->memory_procs);
- code = gx_stroke_add(pgs->path, &spath, pgs);
- if ( code < 0 ) return code;
- gx_path_release(pgs->path);
- *pgs->path = spath;
- return 0;
- }
-