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annotate libinterp/dldfcn/__init_gnuplot__.cc @ 20267:a9574e3c6e9e

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Deprecate Array::length() and Sparse::length() in favour of ::numel(). * liboctave/array/Array.h (Array::length): deprecate for ::numel. * liboctave/array/Sparse.h (Sparse::length): deprecate for ::numel. * libgui/graphics/QtHandlesUtils.cc, libgui/src/octave-qt-link.cc, libinterp/corefcn/Cell.cc, libinterp/corefcn/__contourc__.cc, libinterp/corefcn/__pchip_deriv__.cc, libinterp/corefcn/__qp__.cc, libinterp/corefcn/cellfun.cc, libinterp/corefcn/daspk.cc, libinterp/corefcn/dasrt.cc, libinterp/corefcn/dassl.cc, libinterp/corefcn/data.cc, libinterp/corefcn/filter.cc, libinterp/corefcn/find.cc, libinterp/corefcn/gl-render.cc, libinterp/corefcn/gl-render.h, libinterp/corefcn/graphics.cc, libinterp/corefcn/graphics.in.h, libinterp/corefcn/help.cc, libinterp/corefcn/hex2num.cc, libinterp/corefcn/input.cc, libinterp/corefcn/load-path.cc, libinterp/corefcn/load-save.cc, libinterp/corefcn/ls-oct-ascii.h, libinterp/corefcn/lsode.cc, libinterp/corefcn/matrix_type.cc, libinterp/corefcn/oct-hist.cc, libinterp/corefcn/oct-map.cc, libinterp/corefcn/oct-map.h, libinterp/corefcn/oct-obj.h, libinterp/corefcn/oct-stream.cc, libinterp/corefcn/oct-stream.h, libinterp/corefcn/pr-output.cc, libinterp/corefcn/quadcc.cc, libinterp/corefcn/rand.cc, libinterp/corefcn/regexp.cc, libinterp/corefcn/strfns.cc, libinterp/corefcn/sub2ind.cc, libinterp/corefcn/symtab.h, libinterp/corefcn/syscalls.cc, libinterp/corefcn/tsearch.cc, libinterp/corefcn/urlwrite.cc, libinterp/corefcn/utils.cc, libinterp/corefcn/variables.cc, libinterp/corefcn/xdiv.cc, libinterp/corefcn/xpow.cc, libinterp/dldfcn/__glpk__.cc, libinterp/dldfcn/__init_fltk__.cc, libinterp/dldfcn/__magick_read__.cc, libinterp/dldfcn/audiodevinfo.cc, libinterp/dldfcn/ccolamd.cc, libinterp/dldfcn/colamd.cc, libinterp/octave-value/ov-cell.cc, libinterp/octave-value/ov-class.cc, libinterp/octave-value/ov-class.h, libinterp/octave-value/ov-fcn-inline.cc, libinterp/octave-value/ov-java.cc, libinterp/octave-value/ov-perm.cc, libinterp/octave-value/ov-struct.cc, libinterp/octave-value/ov-typeinfo.cc, libinterp/octave-value/ov.cc, libinterp/operators/op-int.h, libinterp/parse-tree/pt-pr-code.cc, liboctave/array/Array-util.cc, liboctave/array/Array.cc, liboctave/array/CColVector.cc, liboctave/array/CDiagMatrix.cc, liboctave/array/CMatrix.cc, liboctave/array/CRowVector.cc, liboctave/array/DiagArray2.cc, liboctave/array/DiagArray2.h, liboctave/array/MArray.cc, liboctave/array/PermMatrix.cc, liboctave/array/PermMatrix.h, liboctave/array/Sparse.cc, liboctave/array/boolMatrix.cc, liboctave/array/chMatrix.cc, liboctave/array/chNDArray.cc, liboctave/array/dColVector.cc, liboctave/array/dDiagMatrix.cc, liboctave/array/dMatrix.cc, liboctave/array/dRowVector.cc, liboctave/array/fCColVector.cc, liboctave/array/fCDiagMatrix.cc, liboctave/array/fCMatrix.cc, liboctave/array/fCRowVector.cc, liboctave/array/fColVector.cc, liboctave/array/fDiagMatrix.cc, liboctave/array/fMatrix.cc, liboctave/array/fRowVector.cc, liboctave/array/idx-vector.cc, liboctave/array/intNDArray.cc, liboctave/numeric/CmplxCHOL.cc, liboctave/numeric/CmplxLU.cc, liboctave/numeric/CmplxQR.cc, liboctave/numeric/DASPK.cc, liboctave/numeric/DASRT.cc, liboctave/numeric/DASSL.cc, liboctave/numeric/LSODE.cc, liboctave/numeric/ODES.cc, liboctave/numeric/ODES.h, liboctave/numeric/base-dae.h, liboctave/numeric/base-lu.cc, liboctave/numeric/dbleCHOL.cc, liboctave/numeric/dbleLU.cc, liboctave/numeric/dbleQR.cc, liboctave/numeric/eigs-base.cc, liboctave/numeric/fCmplxCHOL.cc, liboctave/numeric/fCmplxLU.cc, liboctave/numeric/fCmplxQR.cc, liboctave/numeric/floatCHOL.cc, liboctave/numeric/floatLU.cc, liboctave/numeric/floatQR.cc, liboctave/numeric/lo-specfun.cc, liboctave/numeric/oct-rand.cc, liboctave/numeric/oct-spparms.cc, liboctave/numeric/sparse-base-chol.cc, liboctave/operators/mx-inlines.cc, liboctave/system/file-ops.cc, liboctave/util/glob-match.h, liboctave/util/kpse.cc, liboctave/util/lo-regexp.cc, liboctave/util/oct-glob.cc, liboctave/util/pathsearch.cc, liboctave/util/str-vec.cc, liboctave/util/str-vec.h, liboctave/util/url-transfer.cc: replace all usage of Array::length() and Sparse::length() with ::numel().
author Carnë Draug <carandraug@octave.org>
date Sat, 30 May 2015 03:14:07 +0100
parents 4197fc428c7d
children f90c8372b7ba
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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 #ifdef 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 "builtins.h"
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37 #include "defun-dld.h"
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38 #include "error.h"
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39 #include "file-stat.h"
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40 #include "graphics.h"
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41 #include "oct-conf.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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56
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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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65
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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___enhanced__ (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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106
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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, bool mono,
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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(4) = debug_file;
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114 args(3) = mono;
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115 args(2) = file;
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116 args(1) = term;
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117 args(0) = go.get_handle ().as_octave_value ();
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118 feval ("__gnuplot_drawnow__", args);
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119 }
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120
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121 Matrix get_canvas_size (const graphics_handle&) const
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122 {
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123 Matrix sz (1, 2, 0.0);
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124 return sz;
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125 }
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126
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127 double get_screen_resolution (void) const
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128 { return 72.0; }
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129
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130 Matrix get_screen_size (void) const
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131 { return Matrix (1, 2, 0.0); }
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132
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133 void close (void)
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134 {
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135 if (toolkit_loaded)
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136 {
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137 munlock ("__init_gnuplot__");
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138
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139 gtk_manager::unload_toolkit ("gnuplot");
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140
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141 toolkit_loaded = false;
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142 }
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143 }
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144
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145 private:
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146
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147 void send_quit (const octave_value& pstream) const
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148 {
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149 if (! pstream.is_empty ())
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150 {
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151 octave_value_list args;
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152 Matrix fids = pstream.matrix_value ();
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153
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154 if (! error_state)
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155 {
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156 Ffputs (ovl (fids(0), "\nquit;\n"));
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157
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158 Ffflush (ovl (fids(0)));
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159 Fpclose (ovl (fids(0)));
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160
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161 if (fids.numel () > 1)
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162 {
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163 Fpclose (ovl (fids(1)));
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164
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165 if (fids.numel () > 2)
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166 Fwaitpid (ovl (fids(2)));
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167 }
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168 }
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169 }
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170 }
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171 };
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172
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173 static bool
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174 have_gnuplot_binary (void)
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175 {
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176 const std::string exeext = std::string (OCTAVE_CONF_EXEEXT);
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177 const std::string path = octave_env::getenv ("PATH");
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178
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179 octave_value_list tmp = feval ("gnuplot_binary", octave_value_list ());
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180 std::string gnuplot_binary = tmp(0).string_value ();
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181
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182 string_vector args (gnuplot_binary);
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183 std::string gnuplot_path = search_path_for_file (path, args);
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184
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185 file_stat fs (gnuplot_path);
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186
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187 if (! fs.exists () && ! exeext.empty ())
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188 {
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189 args[0] += exeext;
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190
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191 gnuplot_path = search_path_for_file (path, args);
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192
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193 fs = file_stat (gnuplot_path);
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194 }
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195
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196 return fs.exists ();
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197 }
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198
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199 // Initialize the gnuplot graphics toolkit.
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200
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201 DEFUN_DLD (__init_gnuplot__, , , "")
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202 {
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203 octave_value retval;
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204
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205 if (! have_gnuplot_binary ())
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206 error ("__init_gnuplot__: the gnuplot program is not available, see 'gnuplot_binary'");
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207 else if (! toolkit_loaded)
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208 {
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209 mlock ();
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210
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211 graphics_toolkit tk (new gnuplot_graphics_toolkit ());
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212 gtk_manager::load_toolkit (tk);
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213
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214 toolkit_loaded = true;
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215 }
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216
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217 return retval;
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218 }
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219
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220 DEFUN_DLD (__have_gnuplot__, , ,
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221 "-*- texinfo -*-\n\
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222 @deftypefn {Loadable Function} {@var{gnuplot_available} =} __have_gnuplot__ ()\n\
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223 Undocumented internal function.\n\
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224 @end deftypefn")
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225 {
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226 octave_value retval;
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227
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228 retval = have_gnuplot_binary ();
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229
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230 return retval;
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231 }
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232