Mercurial > octave-dspies
diff scripts/plot/private/__go_draw_axes__.m @ 12965:22bc9ec80c2c
allow multi-line string property for text objects using cell arrays or char matrices
* __axis_label__.m: Don't check type of txt argument.
* __go_draw_axes__.m: Handle multi-line string property for
text objects.
* text.m: Likewise.
* gl2ps-renderer.cc (glps_renderer::draw_text): Handle
text::properties string property as octave_value object that can
contain either a char array or cellstr object.
* graphics.cc (axes::properties::update_xlabel_position,
axes::properties::update_ylabel_position,
axes::properties::update_zlabel_position,
axes::properties::get_extent, text::properties::update_text_extent): Likewise.
* graphics.h.in (text_label_property::do_set): Don't forget to set
stored_type when value is a cell.
(text::properties::get_string): Delete custom getter.
| author | Ben Abbott <bpabbott@mac.com> |
|---|---|
| date | Mon, 15 Aug 2011 10:24:09 -0400 |
| parents | cefd568ea073 |
| children | bda7b080f205 |
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--- a/scripts/plot/private/__go_draw_axes__.m Mon Aug 15 10:05:28 2011 -0400 +++ b/scripts/plot/private/__go_draw_axes__.m Mon Aug 15 10:24:09 2011 -0400 @@ -1250,6 +1250,11 @@ colorspec = get_text_colorspec (color, mono); endif + if (ischar (obj.string)) + num_lines = size (obj.string, 1); + else + num_lines = numel (obj.string); + endif switch valign ## Text offset in characters. This relies on gnuplot for font metrics. case "top" @@ -1257,17 +1262,18 @@ case "cap" dy = -0.5; case "middle" - dy = 0; + dy = 0.5 * (num_lines - 1); case "baseline" - dy = 0.5; + dy = 0.5 + (num_lines - 1); case "bottom" - dy = 0.5; + dy = 0.5 + (num_lines - 1); endswitch ## Gnuplot's Character units are different for x/y and vary with fontsize. The aspect ratio ## of 1:1.7 was determined by experiment to work for eps/ps/etc. For the MacOS aqua terminal ## a value of 2.5 is needed. However, the difference is barely noticable. dx_and_dy = [(-dy * sind (angle)), (dy * cosd(angle))] .* [1.7 1]; + ## FIXME - Multiline text produced the gnuplot "warning: ft_render: skipping glyph" if (nd == 3) ## This produces the desired vertical alignment in 3D. fprintf (plot_stream, @@ -2129,10 +2135,31 @@ bld = false; endif + ## The text object maybe multiline, and may be of any class str = getfield (obj, fld); + if (ischar (str) && size (str, 1) > 1) + str = cellstr (str); + elseif (isnumeric (str)) + str = cellstr (num2str (str(:))); + endif + if (iscellstr (str)) + for n = 1:numel(str) + if (isnumeric (str{n})) + str{n} = num2str (str{n}); + endif + endfor + str = sprintf ("%s\n", str{:})(1:end-1); + endif + if (enhanced) if (strcmpi (obj.interpreter, "tex")) - str = __tex2enhanced__ (str, fnt, it, bld); + if (iscellstr (str)) + for n = 1:numel(str) + str{n} = __tex2enhanced__ (str{n}, fnt, it, bld); + endfor + else + str = __tex2enhanced__ (str, fnt, it, bld); + endif elseif (strcmpi (obj.interpreter, "latex")) if (! warned_latex) warning ("latex markup not supported for text objects");