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ticks, guides, margins for gr

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This commit is contained in:
Daniel Schwabeneder 2019-05-02 23:04:35 +02:00
parent bf0bb68e28
commit dcabb2c579
1 changed files with 86 additions and 37 deletions
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123
src/backends/gr.jl
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@ -522,21 +522,28 @@ end
gr_view_xcenter() = 0.5 * (viewport_plotarea[1] + viewport_plotarea[2])
gr_view_ycenter() = 0.5 * (viewport_plotarea[3] + viewport_plotarea[4])
function gr_legend_pos(s::Symbol,w,h)
function gr_legend_pos(sp::Subplot, w, h)
s = sp[:legend]
typeof(s) <: Symbol || return gr_legend_pos(s, w, h)
str = string(s)
if str == "best"
str = "topright"
end
if occursin("outer", str)
xaxis, yaxis = sp[:xaxis], sp[:yaxis]
xmirror = xaxis[:guide_position] == :top || (xaxis[:guide_position] == :auto && xaxis[:mirror] == true)
ymirror = yaxis[:guide_position] == :right || (yaxis[:guide_position] == :auto && yaxis[:mirror] == true)
end
if occursin("right", str)
if occursin("outer", str)
# As per https://github.com/jheinen/GR.jl/blob/master/src/jlgr.jl#L525
xpos = viewport_plotarea[2] + 0.11
xpos = viewport_plotarea[2] + 0.11 + ymirror * gr_yaxis_width(sp)
else
xpos = viewport_plotarea[2] - 0.05 - w
end
elseif occursin("left", str)
if occursin("outer", str)
xpos = viewport_plotarea[1] - 0.11 - w
xpos = viewport_plotarea[1] - 0.05 - w - !ymirror * gr_yaxis_width(sp)
else
xpos = viewport_plotarea[1] + 0.11
end
@ -545,13 +552,13 @@ function gr_legend_pos(s::Symbol,w,h)
end
if occursin("top", str)
if s == :outertop
ypos = viewport_plotarea[4] + h + 0.01
ypos = viewport_plotarea[4] + 0.02 + h + xmirror * gr_xaxis_height(sp)
else
ypos = viewport_plotarea[4] - 0.06
end
elseif occursin("bottom", str)
if s == :outerbottom
ypos = viewport_plotarea[3] - 0.11
ypos = viewport_plotarea[3] - 0.05 - !xmirror * gr_xaxis_height(sp)
else
ypos = viewport_plotarea[3] + h + 0.06
end
@ -668,8 +675,17 @@ function gr_set_yticks_font(sp)
return flip, mirror
end
text_box_width(w, h, rot) = abs(cosd(rot)) * w + abs(cosd(rot + 90)) * h
text_box_height(w, h, rot) = abs(sind(rot)) * w + abs(sind(rot + 90)) * h
function gr_text_size(str)
GR.savestate()
GR.selntran(0)
xs, ys = gr_inqtext(0, 0, string(str))
l, r = extrema(xs)
b, t = extrema(ys)
w = r - l
h = t - b
GR.restorestate()
return w, h
end
function gr_text_size(str, rot)
GR.savestate()
@ -683,6 +699,9 @@ function gr_text_size(str, rot)
return w, h
end
text_box_width(w, h, rot) = abs(cosd(rot)) * w + abs(cosd(rot + 90)) * h
text_box_height(w, h, rot) = abs(sind(rot)) * w + abs(sind(rot + 90)) * h
function gr_get_ticks_size(ticks, rot)
w, h = 0.0, 0.0
for (cv, dv) in zip(ticks...)
@ -693,6 +712,30 @@ function gr_get_ticks_size(ticks, rot)
return w, h
end
function gr_xaxis_height(sp)
xaxis = sp[:xaxis]
xticks, yticks = axis_drawing_info(sp)[1:2]
gr_set_font(tickfont(xaxis))
h = (xticks in (nothing, false, :none) ? 0 : last(gr_get_ticks_size(xticks, xaxis[:rotation])))
if xaxis[:guide] != ""
gr_set_font(guidefont(xaxis))
h += last(gr_text_size(xaxis[:guide]))
end
return h
end
function gr_yaxis_width(sp)
yaxis = sp[:yaxis]
xticks, yticks = axis_drawing_info(sp)[1:2]
gr_set_font(tickfont(yaxis))
w = (xticks in (nothing, false, :none) ? 0 : first(gr_get_ticks_size(yticks, yaxis[:rotation])))
if yaxis[:guide] != ""
gr_set_font(guidefont(yaxis))
w += last(gr_text_size(yaxis[:guide]))
end
return w
end
function _update_min_padding!(sp::Subplot{GRBackend})
dpi = sp.plt[:thickness_scaling]
if !haskey(ENV, "GKSwstype")
@ -701,48 +744,59 @@ function _update_min_padding!(sp::Subplot{GRBackend})
end
end
# Add margin given by the user
leftpad = 4mm + sp[:left_margin]
leftpad = 2mm + sp[:left_margin]
toppad = 2mm + sp[:top_margin]
rightpad = 4mm + sp[:right_margin]
rightpad = 2mm + sp[:right_margin]
bottompad = 2mm + sp[:bottom_margin]
# Add margin for title
if sp[:title] != ""
toppad += 5mm
gr_set_font(titlefont(sp))
l = last(last(gr_text_size(sp[:title])))
h = 1mm + gr_plot_size[2] * l * px
toppad += h
end
# Add margin for x and y ticks
xticks, yticks = axis_drawing_info(sp)[1:2]
if !(xticks in (nothing, false, :none))
flip, mirror = gr_set_xticks_font(sp)
l = last(gr_get_ticks_size(xticks, sp[:xaxis][:rotation]))
l = 0.01 + last(gr_get_ticks_size(xticks, sp[:xaxis][:rotation]))
h = 1mm + gr_plot_size[2] * l * px
if mirror
toppad += 1mm + gr_plot_size[2] * l * px / 2
toppad += h
else
bottompad += 1mm + gr_plot_size[2] * l * px / 2
bottompad += h
end
end
if !(yticks in (nothing, false, :none))
flip, mirror = gr_set_yticks_font(sp)
l = first(gr_get_ticks_size(yticks, sp[:yaxis][:rotation]))
l = 0.01 + first(gr_get_ticks_size(yticks, sp[:yaxis][:rotation]))
w = 1mm + gr_plot_size[1] * l * px
if mirror
rightpad += 1mm + gr_plot_size[1] * l * px / 2
rightpad += w
else
leftpad += 1mm + gr_plot_size[1] * l * px / 2
leftpad += w
end
end
# Add margin for x label
if sp[:xaxis][:guide] != ""
gr_set_font(guidefont(sp[:xaxis]))
l = last(gr_text_size(sp[:xaxis][:guide]))
h = 1mm + gr_plot_size[2] * l * px
if sp[:xaxis][:guide_position] == :top || (sp[:xaxis][:guide_position] == :auto && sp[:xaxis][:mirror] == true)
toppad += 4mm
toppad += h
else
bottompad += 4mm
bottompad += h
end
end
# Add margin for y label
if sp[:yaxis][:guide] != ""
gr_set_font(guidefont(sp[:yaxis]))
l = last(gr_text_size(sp[:yaxis][:guide]))
w = 1mm + gr_plot_size[2] * l * px
if sp[:yaxis][:guide_position] == :right || (sp[:yaxis][:guide_position] == :auto && sp[:yaxis][:mirror] == true)
rightpad += 4mm
rightpad += w
else
leftpad += 4mm
leftpad += w
end
end
if sp[:colorbar_title] != ""
@ -819,13 +873,13 @@ function gr_display(sp::Subplot{GRBackend}, w, h, viewport_canvas)
leg_str = string(sp[:legend])
if occursin("outer", leg_str)
if occursin("right", leg_str)
viewport_plotarea[2] -= legendw + 0.1
viewport_plotarea[2] -= legendw + 0.11
elseif occursin("left", leg_str)
viewport_plotarea[1] += legendw + 0.13
viewport_plotarea[1] += legendw + 0.11
elseif occursin("top", leg_str)
viewport_plotarea[4] -= legendh + 0.06
viewport_plotarea[4] -= legendh + 0.03
elseif occursin("bottom", leg_str)
viewport_plotarea[3] += legendh + 0.09
viewport_plotarea[3] += legendh + 0.04
end
end
@ -1096,34 +1150,29 @@ function gr_display(sp::Subplot{GRBackend}, w, h, viewport_canvas)
gr_set_font(guidefont(xaxis))
GR.titles3d(xaxis[:guide], yaxis[:guide], zaxis[:guide])
else
xticks, yticks = axis_drawing_info(sp)[1:2]
if xaxis[:guide] != ""
h = 0.01 + gr_xaxis_height(sp)
gr_set_font(guidefont(xaxis))
if xaxis[:guide_position] == :top || (xaxis[:guide_position] == :auto && xaxis[:mirror] == true)
GR.settextalign(GR.TEXT_HALIGN_CENTER, GR.TEXT_VALIGN_TOP)
gr_text(gr_view_xcenter(), viewport_subplot[4], xaxis[:guide])
gr_text(gr_view_xcenter(), viewport_plotarea[4] + h, xaxis[:guide])
else
GR.settextalign(GR.TEXT_HALIGN_CENTER, GR.TEXT_VALIGN_BOTTOM)
gr_text(gr_view_xcenter(), viewport_subplot[3], xaxis[:guide])
gr_text(gr_view_xcenter(), viewport_plotarea[3] - h, xaxis[:guide])
end
end
if yaxis[:guide] != ""
w = 0.02 + gr_yaxis_width(sp)
gr_set_font(guidefont(yaxis))
GR.setcharup(-1, 0)
if yaxis[:guide_position] == :right || (yaxis[:guide_position] == :auto && yaxis[:mirror] == true)
GR.settextalign(GR.TEXT_HALIGN_CENTER, GR.TEXT_VALIGN_BOTTOM)
if viewport_plotarea[1] - viewport_subplot[1] > 0.1
gr_text(viewport_plotarea[2] + 0.025, gr_view_ycenter(), yaxis[:guide])
else
gr_text(viewport_subplot[2], gr_view_ycenter(), yaxis[:guide])
end
gr_text(viewport_plotarea[2] + w, gr_view_ycenter(), yaxis[:guide])
else
GR.settextalign(GR.TEXT_HALIGN_CENTER, GR.TEXT_VALIGN_TOP)
if viewport_plotarea[1] - viewport_subplot[1] > 0.1
gr_text(viewport_plotarea[1] - 0.075, gr_view_ycenter(), yaxis[:guide])
else
gr_text(viewport_subplot[1], gr_view_ycenter(), yaxis[:guide])
end
gr_text(viewport_plotarea[1] - w, gr_view_ycenter(), yaxis[:guide])
end
end
end
@ -1396,7 +1445,7 @@ function gr_display(sp::Subplot{GRBackend}, w, h, viewport_canvas)
if w > 0
dy = _gr_point_mult[1] * sp[:legendfontsize] * 1.75
h = dy*n
(xpos,ypos) = gr_legend_pos(sp[:legend],w,h)
xpos, ypos = gr_legend_pos(sp, w, h)
GR.setfillintstyle(GR.INTSTYLE_SOLID)
gr_set_fillcolor(sp[:background_color_legend])
GR.fillrect(xpos - 0.08, xpos + w + 0.02, ypos + dy, ypos - dy * n)