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annotate libinterp/dldfcn/__init_gnuplot__.cc @ 31605:e88a07dec498 stable

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maint: Use macros to begin/end C++ namespaces. * oct-conf-post-public.in.h: Define two macros (OCTAVE_BEGIN_NAMESPACE, OCTAVE_END_NAMESPACE) that can be used to start/end a namespace. * mk-opts.pl, build-env.h, build-env.in.cc, __betainc__.cc, __contourc__.cc, __dsearchn__.cc, __eigs__.cc, __expint__.cc, __ftp__.cc, __gammainc__.cc, __ichol__.cc, __ilu__.cc, __isprimelarge__.cc, __lin_interpn__.cc, __magick_read__.cc, __pchip_deriv__.cc, __qp__.cc, amd.cc, auto-shlib.cc, auto-shlib.h, balance.cc, base-text-renderer.cc, base-text-renderer.h, besselj.cc, bitfcns.cc, bsxfun.cc, c-file-ptr-stream.cc, c-file-ptr-stream.h, call-stack.cc, call-stack.h, ccolamd.cc, cellfun.cc, chol.cc, colamd.cc, colloc.cc, conv2.cc, daspk.cc, dasrt.cc, dassl.cc, data.cc, data.h, debug.cc, defaults.cc, defaults.h, defun-int.h, defun.cc, det.cc, dirfns.cc, display.cc, display.h, dlmread.cc, dmperm.cc, dot.cc, dynamic-ld.cc, dynamic-ld.h, eig.cc, ellipj.cc, environment.cc, environment.h, error.cc, error.h, errwarn.h, event-manager.cc, event-manager.h, event-queue.cc, event-queue.h, fcn-info.cc, fcn-info.h, fft.cc, fft2.cc, fftn.cc, file-io.cc, filter.cc, find.cc, ft-text-renderer.cc, ft-text-renderer.h, gcd.cc, getgrent.cc, getpwent.cc, getrusage.cc, givens.cc, gl-render.cc, gl-render.h, gl2ps-print.cc, gl2ps-print.h, graphics-toolkit.cc, graphics-toolkit.h, graphics.cc, graphics.in.h, gsvd.cc, gtk-manager.cc, gtk-manager.h, hash.cc, help.cc, help.h, hess.cc, hex2num.cc, hook-fcn.cc, hook-fcn.h, input.cc, input.h, interpreter-private.cc, interpreter-private.h, interpreter.cc, interpreter.h, inv.cc, jsondecode.cc, jsonencode.cc, kron.cc, latex-text-renderer.cc, latex-text-renderer.h, load-path.cc, load-path.h, load-save.cc, load-save.h, lookup.cc, ls-ascii-helper.cc, ls-ascii-helper.h, ls-oct-text.cc, ls-utils.cc, ls-utils.h, lsode.cc, lu.cc, mappers.cc, matrix_type.cc, max.cc, mex-private.h, mex.cc, mgorth.cc, nproc.cc, oct-fstrm.cc, oct-fstrm.h, oct-hdf5-types.cc, oct-hdf5-types.h, oct-hist.cc, oct-hist.h, oct-iostrm.cc, oct-iostrm.h, oct-opengl.h, oct-prcstrm.cc, oct-prcstrm.h, oct-procbuf.cc, oct-procbuf.h, oct-process.cc, oct-process.h, oct-stdstrm.h, oct-stream.cc, oct-stream.h, oct-strstrm.cc, oct-strstrm.h, oct-tex-lexer.in.ll, oct-tex-parser.yy, ordqz.cc, ordschur.cc, pager.cc, pager.h, pinv.cc, pow2.cc, pr-flt-fmt.cc, pr-output.cc, procstream.cc, procstream.h, psi.cc, qr.cc, quad.cc, quadcc.cc, qz.cc, rand.cc, rcond.cc, regexp.cc, schur.cc, settings.cc, settings.h, sighandlers.cc, sighandlers.h, sparse-xdiv.cc, sparse-xdiv.h, sparse-xpow.cc, sparse-xpow.h, sparse.cc, spparms.cc, sqrtm.cc, stack-frame.cc, stack-frame.h, stream-euler.cc, strfind.cc, strfns.cc, sub2ind.cc, svd.cc, sylvester.cc, symbfact.cc, syminfo.cc, syminfo.h, symrcm.cc, symrec.cc, symrec.h, symscope.cc, symscope.h, symtab.cc, symtab.h, syscalls.cc, sysdep.cc, sysdep.h, text-engine.cc, text-engine.h, text-renderer.cc, text-renderer.h, time.cc, toplev.cc, tril.cc, tsearch.cc, typecast.cc, url-handle-manager.cc, url-handle-manager.h, urlwrite.cc, utils.cc, utils.h, variables.cc, variables.h, xdiv.cc, xdiv.h, xnorm.cc, xnorm.h, xpow.cc, xpow.h, __delaunayn__.cc, __fltk_uigetfile__.cc, __glpk__.cc, __init_fltk__.cc, __init_gnuplot__.cc, __ode15__.cc, __voronoi__.cc, audiodevinfo.cc, audioread.cc, convhulln.cc, fftw.cc, gzip.cc, mk-build-env-features.sh, mk-builtins.pl, cdef-class.cc, cdef-class.h, cdef-fwd.h, cdef-manager.cc, cdef-manager.h, cdef-method.cc, cdef-method.h, cdef-object.cc, cdef-object.h, cdef-package.cc, cdef-package.h, cdef-property.cc, cdef-property.h, cdef-utils.cc, cdef-utils.h, ov-base.cc, ov-base.h, ov-bool-mat.cc, ov-builtin.h, ov-cell.cc, ov-class.cc, ov-class.h, ov-classdef.cc, ov-classdef.h, ov-complex.cc, ov-fcn-handle.cc, ov-fcn-handle.h, ov-fcn.h, ov-java.cc, ov-java.h, ov-mex-fcn.h, ov-null-mat.cc, ov-oncleanup.cc, ov-struct.cc, ov-typeinfo.cc, ov-typeinfo.h, ov-usr-fcn.cc, ov-usr-fcn.h, ov.cc, ov.h, octave.cc, octave.h, mk-ops.sh, op-b-b.cc, op-b-bm.cc, op-b-sbm.cc, op-bm-b.cc, op-bm-bm.cc, op-bm-sbm.cc, op-cdm-cdm.cc, op-cell.cc, op-chm.cc, op-class.cc, op-cm-cm.cc, op-cm-cs.cc, op-cm-m.cc, op-cm-s.cc, op-cm-scm.cc, op-cm-sm.cc, op-cs-cm.cc, op-cs-cs.cc, op-cs-m.cc, op-cs-s.cc, op-cs-scm.cc, op-cs-sm.cc, op-dm-dm.cc, op-dm-scm.cc, op-dm-sm.cc, op-dm-template.cc, op-dms-template.cc, op-fcdm-fcdm.cc, op-fcm-fcm.cc, op-fcm-fcs.cc, op-fcm-fm.cc, op-fcm-fs.cc, op-fcn.cc, op-fcs-fcm.cc, op-fcs-fcs.cc, op-fcs-fm.cc, op-fcs-fs.cc, op-fdm-fdm.cc, op-fm-fcm.cc, op-fm-fcs.cc, op-fm-fm.cc, op-fm-fs.cc, op-fs-fcm.cc, op-fs-fcs.cc, op-fs-fm.cc, op-fs-fs.cc, op-i16-i16.cc, op-i32-i32.cc, op-i64-i64.cc, op-i8-i8.cc, op-int-concat.cc, op-m-cm.cc, op-m-cs.cc, op-m-m.cc, op-m-s.cc, op-m-scm.cc, op-m-sm.cc, op-mi.cc, op-pm-pm.cc, op-pm-scm.cc, op-pm-sm.cc, op-pm-template.cc, op-range.cc, op-s-cm.cc, op-s-cs.cc, op-s-m.cc, op-s-s.cc, op-s-scm.cc, op-s-sm.cc, op-sbm-b.cc, op-sbm-bm.cc, op-sbm-sbm.cc, op-scm-cm.cc, op-scm-cs.cc, op-scm-m.cc, op-scm-s.cc, op-scm-scm.cc, op-scm-sm.cc, op-sm-cm.cc, op-sm-cs.cc, op-sm-m.cc, op-sm-s.cc, op-sm-scm.cc, op-sm-sm.cc, op-str-m.cc, op-str-s.cc, op-str-str.cc, op-struct.cc, op-ui16-ui16.cc, op-ui32-ui32.cc, op-ui64-ui64.cc, op-ui8-ui8.cc, ops.h, anon-fcn-validator.cc, anon-fcn-validator.h, bp-table.cc, bp-table.h, comment-list.cc, comment-list.h, filepos.h, lex.h, lex.ll, oct-lvalue.cc, oct-lvalue.h, oct-parse.yy, parse.h, profiler.cc, profiler.h, pt-anon-scopes.cc, pt-anon-scopes.h, pt-arg-list.cc, pt-arg-list.h, pt-args-block.cc, pt-args-block.h, pt-array-list.cc, pt-array-list.h, pt-assign.cc, pt-assign.h, pt-binop.cc, pt-binop.h, pt-bp.cc, pt-bp.h, pt-cbinop.cc, pt-cbinop.h, pt-cell.cc, pt-cell.h, pt-check.cc, pt-check.h, pt-classdef.cc, pt-classdef.h, pt-cmd.h, pt-colon.cc, pt-colon.h, pt-const.cc, pt-const.h, pt-decl.cc, pt-decl.h, pt-eval.cc, pt-eval.h, pt-except.cc, pt-except.h, pt-exp.cc, pt-exp.h, pt-fcn-handle.cc, pt-fcn-handle.h, pt-id.cc, pt-id.h, pt-idx.cc, pt-idx.h, pt-jump.h, pt-loop.cc, pt-loop.h, pt-mat.cc, pt-mat.h, pt-misc.cc, pt-misc.h, pt-pr-code.cc, pt-pr-code.h, pt-select.cc, pt-select.h, pt-spmd.cc, pt-spmd.h, pt-stmt.cc, pt-stmt.h, pt-tm-const.cc, pt-tm-const.h, pt-unop.cc, pt-unop.h, pt-vm-eval.cc, pt-walk.cc, pt-walk.h, pt.cc, pt.h, token.cc, token.h, Range.cc, Range.h, idx-vector.cc, idx-vector.h, range-fwd.h, CollocWt.cc, CollocWt.h, aepbalance.cc, aepbalance.h, chol.cc, chol.h, gepbalance.cc, gepbalance.h, gsvd.cc, gsvd.h, hess.cc, hess.h, lo-mappers.cc, lo-mappers.h, lo-specfun.cc, lo-specfun.h, lu.cc, lu.h, oct-convn.cc, oct-convn.h, oct-fftw.cc, oct-fftw.h, oct-norm.cc, oct-norm.h, oct-rand.cc, oct-rand.h, oct-spparms.cc, oct-spparms.h, qr.cc, qr.h, qrp.cc, qrp.h, randgamma.cc, randgamma.h, randmtzig.cc, randmtzig.h, randpoisson.cc, randpoisson.h, schur.cc, schur.h, sparse-chol.cc, sparse-chol.h, sparse-lu.cc, sparse-lu.h, sparse-qr.cc, sparse-qr.h, svd.cc, svd.h, child-list.cc, child-list.h, dir-ops.cc, dir-ops.h, file-ops.cc, file-ops.h, file-stat.cc, file-stat.h, lo-sysdep.cc, lo-sysdep.h, lo-sysinfo.cc, lo-sysinfo.h, mach-info.cc, mach-info.h, oct-env.cc, oct-env.h, oct-group.cc, oct-group.h, oct-password.cc, oct-password.h, oct-syscalls.cc, oct-syscalls.h, oct-time.cc, oct-time.h, oct-uname.cc, oct-uname.h, action-container.cc, action-container.h, base-list.h, cmd-edit.cc, cmd-edit.h, cmd-hist.cc, cmd-hist.h, f77-fcn.h, file-info.cc, file-info.h, lo-array-errwarn.cc, lo-array-errwarn.h, lo-hash.cc, lo-hash.h, lo-ieee.h, lo-regexp.cc, lo-regexp.h, lo-utils.cc, lo-utils.h, oct-base64.cc, oct-base64.h, oct-glob.cc, oct-glob.h, oct-inttypes.h, oct-mutex.cc, oct-mutex.h, oct-refcount.h, oct-shlib.cc, oct-shlib.h, oct-sparse.cc, oct-sparse.h, oct-string.h, octave-preserve-stream-state.h, pathsearch.cc, pathsearch.h, quit.cc, quit.h, unwind-prot.cc, unwind-prot.h, url-transfer.cc, url-transfer.h : Use new macros to begin/end C++ namespaces.
author Rik <rik@octave.org>
date Thu, 01 Dec 2022 14:23:45 -0800
parents 670a0d878af1
children aac27ad79be6
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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 2007-2022 The Octave Project Developers
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4 //
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5 // See the file COPYRIGHT.md in the top-level directory of this
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6 // distribution or <https://octave.org/copyright/>.
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7 //
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8 // This file is part of Octave.
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9 //
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10 // Octave is free software: you can redistribute it and/or modify it
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11 // under the terms of the GNU General Public License as published by
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12 // the Free Software Foundation, either version 3 of the License, or
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13 // (at your option) any later version.
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14 //
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15 // Octave is distributed in the hope that it will be useful, but
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16 // WITHOUT ANY WARRANTY; without even the implied warranty of
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17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 // GNU General Public License for more details.
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19 //
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20 // You should have received a copy of the GNU General Public License
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21 // along with Octave; see the file COPYING. If not, see
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22 // <https://www.gnu.org/licenses/>.
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23 //
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24 ////////////////////////////////////////////////////////////////////////
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25
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26 /*
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27
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28 To initialize:
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29
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30 graphics_toolkit ("gnuplot");
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31 plot (randn (1e3, 1));
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32
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33 */
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34
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35 #if defined (HAVE_CONFIG_H)
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36 # include "config.h"
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37 #endif
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38
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39 #include <string>
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40
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41 #include "dMatrix.h"
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42 #include "file-stat.h"
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43 #include "oct-env.h"
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44
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45 #include "build-env.h"
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46 #include "builtin-defun-decls.h"
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47 #include "defun-dld.h"
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48 #include "error.h"
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49 #include "graphics.h"
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50 #include "interpreter-private.h"
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51 #include "interpreter.h"
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52 #include "ov.h"
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53 #include "ovl.h"
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54 #include "parse.h"
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55 #include "utils.h"
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56 #include "variables.h"
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57
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58 // PKG_ADD: if (__have_gnuplot__ ()) register_graphics_toolkit ("gnuplot"); endif
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59
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60 OCTAVE_BEGIN_NAMESPACE(octave)
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61
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62 class gnuplot_graphics_toolkit : public octave::base_graphics_toolkit
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63 {
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64 public:
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65 gnuplot_graphics_toolkit (octave::interpreter& interp)
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66 : octave::base_graphics_toolkit ("gnuplot"), m_interpreter (interp)
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67 {
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68 static bool warned = false;
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69
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70 if (! warned)
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71 {
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72 warning_with_id
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73 ("Octave:gnuplot-graphics",
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74 "using the gnuplot graphics toolkit is discouraged\n\
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75 \n\
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76 The gnuplot graphics toolkit is not actively maintained and has a number\n\
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77 of limitations that are unlikely to be fixed. Communication with gnuplot\n\
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78 uses a one-directional pipe and limited information is passed back to the\n\
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79 Octave interpreter so most changes made interactively in the plot window\n\
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80 will not be reflected in the graphics properties managed by Octave. For\n\
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81 example, if the plot window is closed with a mouse click, Octave will not\n\
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82 be notified and will not update its internal list of open figure windows.\n\
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83 The qt toolkit is recommended instead.\n");
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84
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85 warned = true;
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86 }
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87 }
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88
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89 ~gnuplot_graphics_toolkit (void) = default;
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90
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91 bool is_valid (void) const { return true; }
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92
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93 bool initialize (const graphics_object& go)
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94 {
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95 return go.isa ("figure");
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96 }
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97
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98 void finalize (const graphics_object& go)
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99 {
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100 if (go.isa ("figure"))
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101 {
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102 const figure::properties& props
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103 = dynamic_cast<const figure::properties&> (go.get_properties ());
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104
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105 send_quit (props.get___plot_stream__ ());
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106 }
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107 }
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108
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109 void update (const graphics_object& go, int id)
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110 {
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111 if (go.isa ("figure"))
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112 {
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113 graphics_object obj (go);
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114
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115 figure::properties& props
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116 = dynamic_cast<figure::properties&> (obj.get_properties ());
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117
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118 switch (id)
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119 {
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120 case base_properties::ID_VISIBLE:
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121 if (! props.is_visible ())
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122 {
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123 send_quit (props.get___plot_stream__ ());
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124 props.set___plot_stream__ (Matrix ());
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125 props.set_graphicssmoothing (false);
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126 }
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127 break;
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128 }
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129 }
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130 }
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131
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132 void redraw_figure (const graphics_object& go) const
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133 {
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134 static bool drawnow_executing = false;
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135
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136 // Prevent recursion
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137 if (! drawnow_executing)
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138 {
28818
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139 octave::unwind_protect_var<bool> restore_var (drawnow_executing, true);
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140
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141 octave_value_list args;
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142 args(0) = go.get_handle ().as_octave_value ();
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143 octave::feval ("__gnuplot_drawnow__", args);
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144 }
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145 }
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146
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147 void print_figure (const graphics_object& go, const std::string& term,
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148 const std::string& file,
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149 const std::string& debug_file) const
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150 {
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151 octave_value_list args;
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152 if (! debug_file.empty ())
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153 args(3) = debug_file;
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154 args(2) = file;
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155 args(1) = term;
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156 args(0) = go.get_handle ().as_octave_value ();
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157 octave::feval ("__gnuplot_drawnow__", args);
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158 }
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159
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160 Matrix get_canvas_size (const graphics_handle&) const
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161 {
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162 Matrix sz (1, 2, 0.0);
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163 return sz;
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164 }
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165
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166 double get_screen_resolution (void) const
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167 { return 72.0; }
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168
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169 Matrix get_screen_size (void) const
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170 { return Matrix (1, 2, 0.0); }
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171
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172 void close (void)
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173 {
27862
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174 if (m_interpreter.mislocked ("__init_gnuplot__"))
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175 m_interpreter.munlock ("__init_gnuplot__");
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176 }
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177
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178 private:
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179
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180 void send_quit (const octave_value& pstream) const
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181 {
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182 if (! pstream.isempty ())
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183 {
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184 octave_value_list args;
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185 Matrix fids = pstream.matrix_value ();
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186
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187 octave::Ffputs (m_interpreter, ovl (fids(0), "\nquit;\n"));
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188
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189 octave::Ffflush (m_interpreter, ovl (fids(0)));
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190 octave::Fpclose (m_interpreter, ovl (fids(0)));
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191
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192 if (fids.numel () > 1)
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193 {
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194 octave::Fpclose (m_interpreter, ovl (fids(1)));
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195
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196 if (fids.numel () > 2)
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197 octave::Fwaitpid (ovl (fids(2)));
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198 }
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199 }
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200 }
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diff changeset
201
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diff changeset
202 octave::interpreter& m_interpreter;
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203 };
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204
19646
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diff changeset
205 static bool
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diff changeset
206 have_gnuplot_binary (void)
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diff changeset
207 {
21220
d78e45987d6a rename octave::build_env namespace from octave::config
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diff changeset
208 const std::string exeext = octave::build_env::EXEEXT;
21732
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diff changeset
209 const std::string path = octave::sys::env::getenv ("PATH");
21878
67e51c889f34 Silence errors from __have_gnuplot__ when gnuplot_binary is not found
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diff changeset
210 bool retval = false;
19649
830c8457295a Check for gnuplot binary with executable file extension if needed
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diff changeset
211
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212 try
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213 {
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214 octave_value_list tmp
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215 = octave::feval ("gnuplot_binary", octave_value_list ());
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216
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217 if (tmp(0).is_string () && ! tmp(0).isempty ())
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218 {
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219 std::string gnuplot_binary = tmp(0).string_value ();
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220
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221 string_vector args (gnuplot_binary);
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222 std::string gnuplot_path = octave::search_path_for_file (path, args);
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223
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224 octave::sys::file_stat fs (gnuplot_path);
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225
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226 if (! fs.exists () && ! exeext.empty ())
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227 {
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228 args[0] += exeext;
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229
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230 gnuplot_path = octave::search_path_for_file (path, args);
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231
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232 fs = octave::sys::file_stat (gnuplot_path);
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233 }
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234
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235 retval = fs.exists ();
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236 }
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237 }
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238 catch (const octave::execution_exception&)
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239 {
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240 octave::interpreter& interp = octave::__get_interpreter__ ();
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241
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242 interp.recover_from_exception ();
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243 }
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244
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245 return retval;
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246 }
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247
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248 // Initialize the gnuplot graphics toolkit.
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249
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250 DEFMETHOD_DLD (__init_gnuplot__, interp, , ,
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251 doc: /* -*- texinfo -*-
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252 @deftypefn {} {} __init_gnuplot__ ()
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253 Undocumented internal function.
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254 @end deftypefn */)
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255 {
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256 if (! have_gnuplot_binary ())
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257 error ("__init_gnuplot__: the gnuplot program is not available, see 'gnuplot_binary'");
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258 else if (! interp.mislocked ("__init_gnuplot__"))
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259 {
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260 gtk_manager& gtk_mgr = interp.get_gtk_manager ();
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261
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262 graphics_toolkit tk (new gnuplot_graphics_toolkit (interp));
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263 gtk_mgr.load_toolkit (tk);
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264
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265 interp.mlock ();
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266 }
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267
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268 return octave_value_list ();
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269 }
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270
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271 DEFUN_DLD (__have_gnuplot__, , ,
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272 doc: /* -*- texinfo -*-
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273 @deftypefn {} {@var{gnuplot_available} =} __have_gnuplot__ ()
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274 Undocumented internal function.
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275 @end deftypefn */)
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276 {
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277 return ovl (have_gnuplot_binary ());
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278 }
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279
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280 /*
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281 ## No test needed for internal helper function.
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282 %!assert (1)
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283 */
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284
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285 OCTAVE_END_NAMESPACE(octave)