--- /dev/null
+## Copyright (C) 2005-2012 John W. Eaton
+##
+## This file is part of Octave.
+##
+## Octave is free software; you can redistribute it and/or modify it
+## under the terms of the GNU General Public License as published by
+## the Free Software Foundation; either version 3 of the License, or (at
+## your option) any later version.
+##
+## Octave 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 Octave; see the file COPYING. If not, see
+## <http://www.gnu.org/licenses/>.
+
+## -*- texinfo -*-
+## @deftypefn {Function File} {} __gnuplot_drawnow__ (@var{h}, @var{term}, @var{file}, @var{mono}, @var{debug_file})
+## Undocumented internal function.
+## @end deftypefn
+
+## Author: jwe
+
+function __gnuplot_drawnow__ (h, term, file, mono, debug_file)
+
+ if (nargin < 4)
+ mono = false;
+ endif
+
+ if (nargin >= 3 && nargin <= 5)
+ ## Produce various output formats, or redirect gnuplot stream to a
+ ## debug file.
+ plot_stream = [];
+ fid = [];
+ default_plot_stream = get (h, "__plot_stream__");
+ unwind_protect
+ plot_stream = __gnuplot_open_stream__ (2, h);
+ gnuplot_supports_term = __gnuplot_has_terminal__ (term, plot_stream);
+ if (gnuplot_supports_term)
+ enhanced = gnuplot_set_term (plot_stream (1), true, h, term, file);
+ __go_draw_figure__ (h, plot_stream(1), enhanced, mono);
+ if (nargin == 5)
+ fid = fopen (debug_file, "wb");
+ enhanced = gnuplot_set_term (fid, true, h, term, file);
+ __go_draw_figure__ (h, fid, enhanced, mono);
+ endif
+ else
+ error ("__gnuplot_drawnow__: the gnuplot terminal, \"%s\", is not available",
+ gnuplot_trim_term (term));
+ endif
+ unwind_protect_cleanup
+ set (h, "__plot_stream__", default_plot_stream);
+ if (! isempty (plot_stream))
+ pclose (plot_stream(1));
+ if (numel (plot_stream) > 1)
+ pclose (plot_stream(2));
+ endif
+ if (numel (plot_stream) > 2)
+ waitpid (plot_stream(3));
+ endif
+ endif
+ if (! isempty (fid))
+ fclose (fid);
+ endif
+ end_unwind_protect
+ elseif (nargin == 1)
+ ## Graphics terminal for display.
+ plot_stream = get (h, "__plot_stream__");
+ if (isempty (plot_stream))
+ plot_stream = __gnuplot_open_stream__ (2, h);
+ new_stream = true;
+ else
+ new_stream = false;
+ endif
+ term = gnuplot_default_term ();
+ if (strcmp (term, "dumb"))
+ ## popen2 eats stdout of gnuplot, use temporary file instead
+ dumb_tmp_file = tmpnam ();
+ enhanced = gnuplot_set_term (plot_stream (1), new_stream, h, ...
+ term, dumb_tmp_file);
+ else
+ enhanced = gnuplot_set_term (plot_stream (1), new_stream, h, term);
+ endif
+ __go_draw_figure__ (h, plot_stream (1), enhanced, mono);
+ fflush (plot_stream (1));
+ if (strcmp (term, "dumb"))
+ fid = -1;
+ while (fid < 0)
+ pause (0.1);
+ fid = fopen (dumb_tmp_file, 'r');
+ endwhile
+ ## reprint the plot on screen
+ [a, count] = fscanf (fid, '%c', Inf);
+ fclose (fid);
+ if (count>0)
+ if (a(1)==12)
+ ## avoid ^L at the beginning
+ a = a(2:end);
+ endif
+ puts (a);
+ endif
+ unlink (dumb_tmp_file);
+ endif
+ else
+ print_usage ();
+ endif
+
+endfunction
+
+function enhanced = gnuplot_set_term (plot_stream, new_stream, h, term, file)
+ ## Generate the gnuplot "set terminal <term> ..." command.
+ ## When "term" originates from print.m, it may include other options.
+ if (nargin < 4)
+ ## This supports the gnuplot graphics toolkit.
+ term = gnuplot_default_term ();
+ opts_str = "";
+ else
+ ## Get the one word terminal id and save the remaining as options to
+ ## be passed on to gnuplot. The terminal may respect the graphics
+ ## toolkit.
+ [term, opts_str] = gnuplot_trim_term (term);
+ term = lower (term);
+ if (strcmpi (term, "lua"))
+ ## Replace "lau tikz" with
+ term = "tikz";
+ opts_str = strrep (opts_str, "tikz", "");
+ endif
+ endif
+
+ if (strfind (opts_str, "noenhanced"))
+ enhanced = false;
+ else
+ enhanced = gnuplot_is_enhanced_term (term);
+ endif
+
+ ## Set the terminal.
+ if (! isempty (term))
+
+ if (enhanced)
+ enh_str = "enhanced";
+ else
+ enh_str = "";
+ endif
+
+ if (! isempty (h) && isfigure (h))
+
+ ## Generate gnuplot title string for plot windows.
+ if (output_to_screen (term) && ~strcmp (term, "dumb"))
+ fig.numbertitle = get (h, "numbertitle");
+ fig.name = strrep (get (h, "name"), "\"", "\\\"");
+ if (strcmpi (get (h, "numbertitle"), "on"))
+ title_str = sprintf ("Figure %d", h);
+ else
+ title_str = "";
+ endif
+ if (! isempty (fig.name) && ! isempty (title_str))
+ title_str = sprintf ("%s: %s", title_str, fig.name);
+ elseif (! isempty (fig.name) && isempty (title_str))
+ title_str = fig.name;
+ endif
+ if (! isempty (title_str))
+ title_str = sprintf ("title \"%s\"", title_str);
+ endif
+ if (strcmp (term, "aqua"))
+ ## Adjust axes-label and tick-label spacing.
+ opts_str = sprintf ("%s font \"%s,%d\"", opts_str,
+ get (0, "defaultaxesfontname"),
+ get (0, "defaultaxesfontsize") / 1.5);
+ endif
+ else
+ title_str = "";
+ endif
+
+ if (! (any (strfind (opts_str, " size ") > 0)
+ || any (strfind (opts_str, "size ") == 1)))
+ ## Get figure size in pixels. Rely on listener to handle coversion.
+ units = get (h, "units");
+ unwind_protect
+ set (h, "units", "pixels");
+ position_in_pixels = get (h, "position");
+ unwind_protect_cleanup
+ set (h, "units", units);
+ end_unwind_protect
+ gnuplot_pos = position_in_pixels(1:2);
+ gnuplot_size = position_in_pixels(3:4);
+ if (! (output_to_screen (term)
+ || any (strcmp (term, {"emf", "gif", "jpeg", "pbm", "png", ...
+ "pngcairo", "svg"}))))
+ ## Convert to inches
+ gnuplot_pos = gnuplot_pos / 72;
+ gnuplot_size = gnuplot_size / 72;
+ endif
+ if (all (gnuplot_size > 0))
+ terminals_with_size = {"canvas", "emf", "epslatex", "fig", ...
+ "gif", "jpeg", "latex", "pbm", "pdf", ...
+ "pdfcairo", "postscript", "png", "pngcairo", ...
+ "pstex", "pslatex", "svg", "tikz"};
+ if (__gnuplot_has_feature__ ("x11_figure_position"))
+ terminals_with_size{end+1} = "x11";
+ endif
+ if (__gnuplot_has_feature__ ("wxt_figure_size"))
+ terminals_with_size{end+1} = "wxt";
+ endif
+ switch (term)
+ case terminals_with_size
+ size_str = sprintf ("size %g,%g", gnuplot_size);
+ case "tikz"
+ size_str = sprintf ("size %gin,%gin", gnuplot_size);
+ case "dumb"
+ new_stream = 1;
+ if (~isempty (getenv ("COLUMNS")) && ~isempty (getenv ("LINES")))
+ ## Let dumb use full text screen size (minus prompt lines).
+ n = sprintf ("%i", -2 - length (find (sprintf ("%s", PS1) == "\n")));
+ ## n = the number of times \n appears in PS1
+ size_str = ["size ", getenv("COLUMNS"), ",", getenv("LINES"), n];
+ else
+ ## Use the gnuplot default.
+ size_str = "";
+ endif
+ case {"aqua", "fig", "corel"}
+ size_str = sprintf ("size %g %g", gnuplot_size);
+ case "dxf"
+ size_str = "";
+ otherwise
+ size_str = "";
+ endswitch
+ if (strncmpi (term, "x11", 3)
+ && __gnuplot_has_feature__ ("x11_figure_position"))
+ ## X11 allows the window to be positioned as well.
+ units = get (0, "units");
+ unwind_protect
+ set (0, "units", "pixels");
+ screen_size = get (0, "screensize")(3:4);
+ unwind_protect_cleanup
+ set (0, "units", units);
+ end_unwind_protect
+ if (all (screen_size > 0))
+ ## For X11, set the figure positon as well as the size
+ ## gnuplot position is UL, Octave's is LL (same for screen/window)
+ gnuplot_pos(2) = screen_size(2) - gnuplot_pos(2) - gnuplot_size(2);
+ gnuplot_pos = max (gnuplot_pos, 1);
+ size_str = sprintf ("%s position %d,%d", size_str,
+ gnuplot_pos(1), gnuplot_pos(2));
+ endif
+ endif
+ else
+ size_str = "";
+ warning ("gnuplot_set_term: size is zero");
+ endif
+ else
+ ## A specified size take priority over the figure properies.
+ size_str = "";
+ endif
+ else
+ if isempty (h)
+ disp ("gnuplot_set_term: figure handle is empty");
+ elseif !isfigure(h)
+ disp ("gnuplot_set_term: not a figure handle");
+ endif
+ title_str = "";
+ size_str = "";
+ endif
+
+ ## Set the gnuplot terminal (type, enhanced, title, options & size).
+ term_str = sprintf ("set terminal %s", term);
+ if (! isempty (enh_str))
+ term_str = sprintf ("%s %s", term_str, enh_str);
+ endif
+ if (! isempty (title_str))
+ term_str = sprintf ("%s %s", term_str, title_str);
+ endif
+ if (isempty (strfind (term, "corel")))
+ if (! isempty (size_str) && new_stream)
+ ## size_str comes after other options to permit specification of
+ ## the canvas size for terminals cdr/corel.
+ term_str = sprintf ("%s %s", term_str, size_str);
+ endif
+ if (nargin > 3 && ischar (opts_str))
+ ## Options must go last.
+ term_str = sprintf ("%s %s", term_str, opts_str);
+ endif
+ else
+ if (nargin > 3 && ischar (opts_str))
+ ## Options must go last.
+ term_str = sprintf ("%s %s", term_str, opts_str);
+ endif
+ if (! isempty (size_str) && new_stream)
+ ## size_str comes after other options to permit specification of
+ ## the canvas size for terminals cdr/corel.
+ term_str = sprintf ("%s %s", term_str, size_str);
+ endif
+ endif
+
+ ## Work around the gnuplot feature of growing the x11 window and
+ ## flickering window (x11, windows, & wxt) when the mouse and
+ ## multiplot are set in gnuplot.
+ fputs (plot_stream, "unset multiplot;\n");
+ flickering_terms = {"x11", "windows", "wxt", "dumb"};
+ if (! any (strcmp (term, flickering_terms))
+ || have_non_legend_axes (h)
+ || numel (findall (h, "type", "image")) > 0)
+ fprintf (plot_stream, "%s\n", term_str);
+ if (nargin == 5)
+ if (! isempty (file))
+ fprintf (plot_stream, "set output '%s';\n", file);
+ endif
+ endif
+ fputs (plot_stream, "set multiplot;\n");
+ elseif (any (strcmp (term, flickering_terms)))
+ fprintf (plot_stream, "%s\n", term_str);
+ if (nargin == 5)
+ if (! isempty (file))
+ fprintf (plot_stream, "set output '%s';\n", file);
+ endif
+ endif
+ endif
+ else
+ ## gnuplot will pick up the GNUTERM environment variable itself
+ ## so no need to set the terminal type if not also setting the
+ ## figure title, enhanced mode, or position.
+ endif
+
+endfunction
+
+function term = gnuplot_default_term ()
+ term = getenv ("GNUTERM");
+ ## If not specified, guess the terminal type.
+ if (isempty (term))
+ if (ismac ())
+ term = "aqua";
+ elseif (! isunix ())
+ term = "windows";
+ elseif (! isempty (getenv ("DISPLAY")))
+ term = "x11";
+ else
+ term = "dumb";
+ endif
+ endif
+endfunction
+
+function [term, opts] = gnuplot_trim_term (string)
+ ## Extract the terminal type and terminal options (from print.m)
+ string = deblank (string);
+ n = strfind (string, ' ');
+ if (isempty (n))
+ term = string;
+ opts = "";
+ else
+ term = string(1:(n-1));
+ opts = string((n+1):end);
+ endif
+endfunction
+
+function have_enhanced = gnuplot_is_enhanced_term (term)
+ persistent enhanced_terminals;
+ if (isempty (enhanced_terminals))
+ ## Don't include pstex, pslatex or epslatex here as the TeX commands
+ ## should not be interpreted in that case.
+ enhanced_terminals = {"aqua", "canvas", "dumb", "emf", "gif", "jpeg", ...
+ "pdf", "pdfcairo", "pm", "png", "pngcairo", ...
+ "postscript", "svg", "windows", "wxt", "x11"};
+ endif
+ if (nargin < 1)
+ ## Determine the default gnuplot terminal.
+ term = gnuplot_default_term ();
+ endif
+ have_enhanced = any (strncmp (enhanced_terminals, term, min (numel (term), 3)));
+endfunction
+
+function ret = output_to_screen (term)
+ ret = any (strcmpi ({"aqua", "dumb", "wxt", "x11", "windows", "pm"}, term));
+endfunction
+
+function retval = have_non_legend_axes (h)
+ retval = false;
+ all_axes = findall (h, "type", "axes");
+ if (! isempty (all_axes))
+ n_all_axes = numel (all_axes);
+ all_axes_tags = get (all_axes, "tag");
+ legend_axes = strcmp (all_axes_tags, "legend");
+ if (! isempty (legend_axes))
+ n_legend_axes = sum (legend_axes);
+ retval = (n_all_axes - n_legend_axes) > 1;
+ endif
+ endif
+endfunction
+
+
+## No test needed for internal helper function.
+%!assert (1)
git://git.creatis.insa-lyon.fr / CreaPhase.git / blobdiff