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Proposed fix for Latex sub/super-scripts in legends #3598

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merged 2 commits into from Jul 4, 2021
Merged

Proposed fix for Latex sub/super-scripts in legends #3598

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14b3835
fix #3558
t-bltg Jul 2, 2021
293b430
allow spacing via extra_kwargs
t-bltg Jul 3, 2021
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13 changes: 7 additions & 6 deletions src/backends/gr.jl
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Expand Up @@ -1162,25 +1162,25 @@ function gr_legend_pos(theta::Real, leg, viewport_plotarea; axisclearance=nothin
end

function gr_get_legend_geometry(viewport_plotarea, sp)
legendn = 0
legendw = 0
legendn = legendw = dy = 0
if sp[:legend] != :none
GR.savestate()
GR.selntran(0)
GR.setscale(0)
if sp[:legendtitle] !== nothing
gr_set_font(legendtitlefont(sp), sp)
legendn += 1
tbx, tby = gr_inqtext(0, 0, string(sp[:legendtitle]))
legendw = tbx[3] - tbx[1]
legendn += 1
dy = tby[3] - tby[1]
end
gr_set_font(legendfont(sp), sp)
for series in series_list(sp)
should_add_to_legend(series) || continue
legendn += 1
lab = series[:label]
tbx, tby = gr_inqtext(0, 0, string(lab))
tbx, tby = gr_inqtext(0, 0, string(series[:label]))
legendw = max(legendw, tbx[3] - tbx[1]) # Holds text width right now
dy = max(dy, tby[3] - tby[1])
end

GR.setscale(1)
Expand All @@ -1197,7 +1197,8 @@ function gr_get_legend_geometry(viewport_plotarea, sp)
x_legend_offset = (viewport_plotarea[2] - viewport_plotarea[1]) / 30
y_legend_offset = (viewport_plotarea[4] - viewport_plotarea[3]) / 30

dy = gr_point_mult(sp) * sp[:legendfontsize] * 1.75
dy *= get(sp[:extra_kwargs], :legend_hfactor, 1)

legendh = dy * legendn

return (
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