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annotate libinterp/dldfcn/__init_gnuplot__.cc @ 21966:112b20240c87

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move docstrings in C++ files out of C strings and into comments * __contourc__.cc, __dispatch__.cc, __dsearchn__.cc, __ichol__.cc, __ilu__.cc, __lin_interpn__.cc, __luinc__.cc, __magick_read__.cc, __pchip_deriv__.cc, __qp__.cc, balance.cc, besselj.cc, betainc.cc, bitfcns.cc, bsxfun.cc, cellfun.cc, colloc.cc, conv2.cc, daspk.cc, dasrt.cc, dassl.cc, data.cc, debug.cc, defaults.cc, det.cc, dirfns.cc, dlmread.cc, dot.cc, eig.cc, ellipj.cc, error.cc, fft.cc, fft2.cc, fftn.cc, file-io.cc, filter.cc, find.cc, gammainc.cc, gcd.cc, getgrent.cc, getpwent.cc, getrusage.cc, givens.cc, graphics.cc, hash.cc, help.cc, hess.cc, hex2num.cc, input.cc, inv.cc, kron.cc, load-path.cc, load-save.cc, lookup.cc, ls-oct-text.cc, lsode.cc, lu.cc, mappers.cc, matrix_type.cc, max.cc, mgorth.cc, nproc.cc, oct-hist.cc, octave-link.cc, ordschur.cc, pager.cc, pinv.cc, pr-output.cc, profiler.cc, psi.cc, pt-jit.cc, quad.cc, quadcc.cc, qz.cc, rand.cc, rcond.cc, regexp.cc, schur.cc, sighandlers.cc, sparse.cc, spparms.cc, sqrtm.cc, str2double.cc, strfind.cc, strfns.cc, sub2ind.cc, svd.cc, sylvester.cc, symtab.cc, syscalls.cc, sysdep.cc, time.cc, toplev.cc, tril.cc, tsearch.cc, typecast.cc, urlwrite.cc, utils.cc, variables.cc, __delaunayn__.cc, __eigs__.cc, __fltk_uigetfile__.cc, __glpk__.cc, __init_fltk__.cc, __init_gnuplot__.cc, __osmesa_print__.cc, __voronoi__.cc, amd.cc, audiodevinfo.cc, audioread.cc, ccolamd.cc, chol.cc, colamd.cc, convhulln.cc, dmperm.cc, fftw.cc, qr.cc, symbfact.cc, symrcm.cc, ov-base.cc, ov-bool-mat.cc, ov-cell.cc, ov-class.cc, ov-classdef.cc, ov-fcn-handle.cc, ov-fcn-inline.cc, ov-flt-re-mat.cc, ov-int16.cc, ov-int32.cc, ov-int64.cc, ov-int8.cc, ov-java.cc, ov-null-mat.cc, ov-oncleanup.cc, ov-range.cc, ov-re-mat.cc, ov-struct.cc, ov-typeinfo.cc, ov-uint16.cc, ov-uint32.cc, ov-uint64.cc, ov-uint8.cc, ov-usr-fcn.cc, ov.cc, octave.cc, pt-arg-list.cc, pt-binop.cc, pt-eval.cc, pt-mat.cc, lex.ll, oct-parse.in.yy: Docstrings are now comments instead of C strings. * build-aux/mk-opts.pl: Emit docstrings as comments instead of C strings. * DASPK-opts.in, LSODE-opts.in: Don't quote " in docstring fragments. * builtins.h: Include builtin-defun-decls.h unconditionally. * defun.h (DEFUN, DEFUNX, DEFCONSTFUN): Simply emit declaration. (DEFALIAS): Always expand to nothing. * defun-dld.h: No special macro expansions for MAKE_BUILTINS. (DEFUN_DLD): Use FORWARD_DECLARE_FUN. (DEFUNX_DLD): Use FORWARD_DECLARE_FUNX. * defun-int.h: No special macro expansions for MAKE_BUILTINS. (FORWARD_DECLARE_FUN, FORWARD_DECLARE_FUNX): New macros. (DEFINE_FUN_INSTALLER_FUN): If compiling an Octave source file, pass "external-doc" to DEFINE_FUNX_INSTALLER_FUN. (DEFUN_INTERNAL, DEFCONSTFUN_INTERNAL, DEFUNX_INTERNAL, DEFALIAS_INTERNAL): Delete. * common.mk (move_if_change_rule): New macro. (simple_move_if_change_rule): Define using move_if_change_rule. * find-defun-files.sh (DEFUN_PATTERN): Update. Don't transform file name extension to ".df". * libinterp/mk-pkg-add, gendoc.pl: Operate directly on source files. * mkbuiltins: New argument, SRCDIR. Operate directly on source files. * mkdefs: Delete. * libinterp/module.mk (BUILT_SOURCES): Update list to contain only files included in other source files. (GENERATED_MAKE_BUILTINS_INCS, DEF_FILES): Delete. (LIBINTERP_BUILT_DISTFILES): Include $(OPT_HANDLERS) here. (LIBINTERP_BUILT_NODISTFILES): Not here. Remove $(ALL_DEF_FILES from the list. (libinterp_EXTRA_DIST): Remove mkdefs from the list. (FOUND_DEFUN_FILES): Rename from SRC_DEF_FILES. (DLDFCN_DEFUN_FILES): Rename from DLDFCN_DEF_FILES. (SRC_DEFUN_FILES): Rename from SRC_DEF_FILES. (ALL_DEFUN_FILES): Rename from ALL_DEF_FILES. (%.df: %.cc): Delete pattern rule. (libinterp/build-env-features.cc, libinterp/builtins.cc, libinterp/dldfcn/PKG_ADD): Use mv instead of move-if-change. (libinterp/builtins.cc, libinterp/builtin-defun-decls.h): Update mkbuiltins command. ($(srcdir)/libinterp/DOCSTRINGS): Update gendoc.pl command. * liboctave/module.mk (BUILT_SOURCES): Don't include liboctave-build-info.cc in the list.
author John W. Eaton <jwe@octave.org>
date Tue, 21 Jun 2016 16:07:51 -0400
parents 241d39c66e8f
children b8f92ea626e7
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1 /*
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2
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3 Copyright (C) 2007-2015 John W. Eaton
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4
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5 This file is part of Octave.
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6
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7 Octave is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 3 of the License, or (at your
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10 option) any later version.
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11
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12 Octave is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with Octave; see the file COPYING. If not, see
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19 <http://www.gnu.org/licenses/>.
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20
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21 */
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22
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23 /*
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24
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25 To initialize:
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26
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27 graphics_toolkit ("gnuplot");
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28 plot (randn (1e3, 1));
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29
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30 */
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31
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32 #if defined (HAVE_CONFIG_H)
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33 # include "config.h"
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34 #endif
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35
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36 #include "build-env.h"
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37 #include "builtins.h"
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38 #include "defun-dld.h"
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39 #include "error.h"
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40 #include "file-stat.h"
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41 #include "graphics.h"
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42 #include "oct-env.h"
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43 #include "parse.h"
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44 #include "utils.h"
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45 #include "variables.h"
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46
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47 // PKG_ADD: if (__have_gnuplot__ ()) register_graphics_toolkit ("gnuplot"); endif
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48
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49 static bool toolkit_loaded = false;
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50
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51 class gnuplot_graphics_toolkit : public base_graphics_toolkit
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52 {
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53 public:
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54 gnuplot_graphics_toolkit (void)
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55 : base_graphics_toolkit ("gnuplot") { }
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57 ~gnuplot_graphics_toolkit (void) { }
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58
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59 bool is_valid (void) const { return true; }
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60
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61 bool initialize (const graphics_object& go)
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62 {
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63 return go.isa ("figure");
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64 }
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66 void finalize (const graphics_object& go)
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67 {
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68 if (go.isa ("figure"))
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69 {
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70 const figure::properties& props =
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71 dynamic_cast<const figure::properties&> (go.get_properties ());
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72
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73 send_quit (props.get___plot_stream__ ());
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74 }
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75 }
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76
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77 void update (const graphics_object& go, int id)
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78 {
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79 if (go.isa ("figure"))
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80 {
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81 graphics_object obj (go);
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82
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83 figure::properties& props =
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84 dynamic_cast<figure::properties&> (obj.get_properties ());
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85
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86 switch (id)
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87 {
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88 case base_properties::ID_VISIBLE:
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89 if (! props.is_visible ())
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90 {
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91 send_quit (props.get___plot_stream__ ());
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92 props.set___plot_stream__ (Matrix ());
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93 props.set_graphicssmoothing (false);
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94 }
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95 break;
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96 }
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97 }
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98 }
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99
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100 void redraw_figure (const graphics_object& go) const
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101 {
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102 octave_value_list args;
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103 args(0) = go.get_handle ().as_octave_value ();
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104 feval ("__gnuplot_drawnow__", args);
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105 }
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107 void print_figure (const graphics_object& go, const std::string& term,
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108 const std::string& file,
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109 const std::string& debug_file) const
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110 {
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111 octave_value_list args;
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112 if (! debug_file.empty ())
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113 args(3) = debug_file;
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114 args(2) = file;
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115 args(1) = term;
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116 args(0) = go.get_handle ().as_octave_value ();
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117 feval ("__gnuplot_drawnow__", args);
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118 }
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119
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120 Matrix get_canvas_size (const graphics_handle&) const
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121 {
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122 Matrix sz (1, 2, 0.0);
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123 return sz;
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124 }
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125
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126 double get_screen_resolution (void) const
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127 { return 72.0; }
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128
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129 Matrix get_screen_size (void) const
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130 { return Matrix (1, 2, 0.0); }
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131
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132 void close (void)
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133 {
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134 if (toolkit_loaded)
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135 {
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136 munlock ("__init_gnuplot__");
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137
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138 gtk_manager::unload_toolkit ("gnuplot");
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139
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140 toolkit_loaded = false;
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141 }
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142 }
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143
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144 private:
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145
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146 void send_quit (const octave_value& pstream) const
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147 {
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148 if (! pstream.is_empty ())
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149 {
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150 octave_value_list args;
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151 Matrix fids = pstream.matrix_value ();
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152
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153 Ffputs (ovl (fids(0), "\nquit;\n"));
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154
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155 Ffflush (ovl (fids(0)));
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156 Fpclose (ovl (fids(0)));
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157
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158 if (fids.numel () > 1)
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159 {
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160 Fpclose (ovl (fids(1)));
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161
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162 if (fids.numel () > 2)
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163 Fwaitpid (ovl (fids(2)));
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164 }
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165 }
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166 }
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167 };
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168
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169 static bool
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170 have_gnuplot_binary (void)
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171 {
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172 const std::string exeext = octave::build_env::EXEEXT;
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173 const std::string path = octave::sys::env::getenv ("PATH");
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174 bool retval = false;
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175
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176 try
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177 {
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178 octave_value_list tmp = feval ("gnuplot_binary", octave_value_list ());
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179
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180 if (tmp(0).is_string ())
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181 {
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182 std::string gnuplot_binary = tmp(0).string_value ();
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183
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184 string_vector args (gnuplot_binary);
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185 std::string gnuplot_path = search_path_for_file (path, args);
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186
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187 octave::sys::file_stat fs (gnuplot_path);
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188
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189 if (! fs.exists () && ! exeext.empty ())
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190 {
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191 args[0] += exeext;
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192
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193 gnuplot_path = search_path_for_file (path, args);
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194
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195 fs = octave::sys::file_stat (gnuplot_path);
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196 }
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197
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198 retval = fs.exists ();
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199 }
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200 }
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201 catch (octave_execution_exception&)
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202 {
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203 }
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204
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205 return retval;
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206 }
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207
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208 // Initialize the gnuplot graphics toolkit.
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209
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210 DEFUN_DLD (__init_gnuplot__, , ,
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211 doc: /* -*- texinfo -*-
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212 @deftypefn {} {} __init_gnuplot__ ()
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213 Undocumented internal function.
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214 @end deftypefn */)
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215 {
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216 octave_value retval;
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217
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218 if (! have_gnuplot_binary ())
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219 error ("__init_gnuplot__: the gnuplot program is not available, see 'gnuplot_binary'");
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220 else if (! toolkit_loaded)
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221 {
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222 mlock ();
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223
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224 graphics_toolkit tk (new gnuplot_graphics_toolkit ());
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225 gtk_manager::load_toolkit (tk);
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226
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227 toolkit_loaded = true;
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228 }
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229
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230 return retval;
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231 }
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232
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233 DEFUN_DLD (__have_gnuplot__, , ,
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234 doc: /* -*- texinfo -*-
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235 @deftypefn {} {@var{gnuplot_available} =} __have_gnuplot__ ()
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236 Undocumented internal function.
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237 @end deftypefn */)
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238 {
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239 octave_value retval;
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240
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241 retval = have_gnuplot_binary ();
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242
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243 return retval;
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244 }
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245
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246 /*
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247 ## No test needed for internal helper function.
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248 %!assert (1)
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249 */