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annotate scripts/plot/ishghandle.m @ 17280:8ce6cdd272eb

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Support TeX elements in FreeType renderer. * libinterp/corefcn/txt-eng.cc: New file. Contains mapping from symbol name to character code, in Unicode and MS symbol. * libinterp/corefcn/modules.mk (COREFCN_SRC): Add txt-eng.cc. * libinterp/corefcn/oct-tex-lexer.ll: Add "\n" to rules applicable to ".", as the latter does not include new line characters. * libinterp/corefcn/oct-tex-parser.yy: Remove debug statements. * libinterp/corefcn/txt-eng.ft.cc (gripe_missing_glyph, gripe_glyph_render): Change signature from char to FT_ULong. (ft_render::ft_render): Adapt to new/removed members. (ft_render::~ft_render): Remove use of fonts member. (ft_render::set_font): Likewise. Use font instead. (ft_render::push_new_line): Likewise. Change meaning of yoffset and initialize line_yoffset. (ft_render::update_line_bbox): New method. (ft_render::set_mode): Change meaning of yoffset and initialize line_yoffset. (ft_render::process_character): New method. (ft_render::visit(text_element_string)): Use it. (ft_render::visit(text_element_list), ft_render::visit(text_element_subscript), ft_render::visit(text_element_superscript), ft_render::visit(text_element_color), ft_render::visit(text_element_fontsize), ft_render::visit(text_element_fontname), ft_render::visit(text_element_fontstyle), ft_render::visit(text_element_symbol)): New methods. (ft_render::set_color): Use color member instead of red/green/blue. * libinterp/corefcn/txt-eng-ft.h (ft_render::visit(text_element_list), ft_render::visit(text_element_subscript), ft_render::visit(text_element_superscript), ft_render::visit(text_element_color), ft_render::visit(text_element_fontsize), ft_render::visit(text_element_fontname), ft_render::visit(text_element_fontstyle), ft_render::visit(text_element_symbol)): New methods. (ft_render::update_line_bbox, ft_render::process_character): New methods. (ft_render::current_face): Removed method.i (ft_render::font): New member, replaces obsolete ft_render::fonts. (ft_render::line_yoffset): New member. (ft_render::color): New member, replaces obsolete red, green and blue. (ft_render::ft_font::ft_font()): Implement default constructor. (ft_render::ft_font::operator=): Fix incorrect use of FT_Reference_Face return value. (ft_render::ft_font::is_valid): New method. * libinterp/corefcn/txt-eng.h (class text_element_symbol, class text_element_fontname, class text_element_fontsize, class text_element_fontname, class text_element_fontstyle, class text_element_color): Add forward definition. (text_element_symbol::invalid_code): New enum. (text_element_symbol::code): New member. (text_element_symbol::text_element_symbol): Initialize it. (text_element_symbol::get_symbol_code): New method. (text_element_fontstyle::get_fontstyle): New method. (text_element_fontname::get_fontname): Renamed from fontname. (text_element_fontsize::get_fontsize): Renamed from fontsize.
author Michael Goffioul <michael.goffioul@gmail.com>
date Sun, 18 Aug 2013 16:36:46 -0400
parents 397bbb215632
children
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1 ## Copyright (C) 2008-2012 David Bateman
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2 ##
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3 ## This file is part of Octave.
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4 ##
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5 ## Octave is free software; you can redistribute it and/or modify it
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6 ## under the terms of the GNU General Public License as published by
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7 ## the Free Software Foundation; either version 3 of the License, or (at
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8 ## your option) any later version.
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9 ##
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10 ## Octave is distributed in the hope that it will be useful, but
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11 ## WITHOUT ANY WARRANTY; without even the implied warranty of
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12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 ## General Public License for more details.
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14 ##
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15 ## You should have received a copy of the GNU General Public License
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16 ## along with Octave; see the file COPYING. If not, see
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17 ## <http://www.gnu.org/licenses/>.
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18
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19 ## -*- texinfo -*-
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20 ## @deftypefn {Function File} {} ishghandle (@var{h})
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21 ## Return true if @var{h} is a graphics handle and false otherwise.
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22 ##
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23 ## This function is equivalent to @code{ishandle} and is provided for
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24 ## compatibility with @sc{matlab}.
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25 ## @seealso{ishandle}
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26 ## @end deftypefn
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27
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28 function retval = ishghandle (h)
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29 ## This function is just included for compatibility as Octave has
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30 ## no simulink equivalent.
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31 retval = ishandle (h);
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32 endfunction
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35 %!test
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36 %! hf = figure ("visible", "off");
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37 %! unwind_protect
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38 %! assert (ishghandle (hf));
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39 %! assert (! ishghandle (-hf));
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40 %! l = line;
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41 %! ax = gca;
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42 %! assert (ishghandle (ax));
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43 %! assert (! ishghandle (-ax));
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44 %! assert (ishghandle (l));
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45 %! assert (! ishghandle (-l));
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46 %! p = patch;
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47 %! assert (ishghandle (p));
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48 %! assert (! ishghandle (-p));
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49 %! s = surface;
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50 %! assert (ishghandle (s));
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51 %! assert (! ishghandle (-s));
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52 %! t = text;
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53 %! assert (ishghandle (t));
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54 %! assert (! ishghandle (-t));
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55 %! i = image ([1]);
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56 %! assert (ishghandle (i));
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57 %! assert (! ishghandle (-i));
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58 %! hg = hggroup;
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59 %! assert (ishghandle (hg));
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60 %! assert (! ishghandle (-hg));
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61 %! unwind_protect_cleanup
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62 %! close (hf);
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63 %! end_unwind_protect
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