326 lines
9.4 KiB
Julia
326 lines
9.4 KiB
Julia
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# https://github.com/jheinen/GR.jl
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const gr_linetype = Dict(
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:auto => 1, :solid => 1, :dash => 2, :dot => 3, :dashdot => 4,
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:dashdotdot => -1 )
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const gr_markertype = Dict(
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:auto => 1, :ellipse => -1, :rect => -7, :diamond => -13,
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:utriangle => -3, :dtriangle => -5, :pentagon => -14, :hexagon => 3,
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:cross => 2, :xcross => 5, :star5 => 3 )
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const gr_halign = Dict(:left => 1, :hcenter => 2, :right => 3)
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const gr_valign = Dict(:top => 1, :vcenter => 3, :bottom => 5)
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const gr_font_family = Dict(
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"times" => 1, "helvetica" => 5, "courier" => 9, "bookman" => 14,
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"newcenturyschlbk" => 18, "avantgarde" => 22, "palatino" => 26)
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function gr_getcolorind(v)
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c = getColor(v)
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return convert(Int, GR.inqcolorfromrgb(c.r, c.g, c.b))
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end
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function gr_display(plt::Plot{GRPackage})
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d = plt.plotargs
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GR.clearws()
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mwidth, mheight, width, height = GR.inqdspsize()
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w, h = d[:size]
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if w > h
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ratio = float(h) / w
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size = mwidth * w / width
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GR.setwsviewport(0, size, 0, size * ratio)
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GR.setwswindow(0, 1, 0, ratio)
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viewport = [0.1, 0.95, 0.1 * ratio, 0.95 * ratio]
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else
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ratio = float(w) / h
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size = mheight * h / height
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GR.setwsviewport(0, size * ratio, 0, size)
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GR.setwswindow(0, ratio, 0, 1)
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viewport = [0.1 * ratio, 0.95 * ratio, 0.1, 0.95]
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end
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xmin = ymin = typemax(Float64)
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xmax = ymax = typemin(Float64)
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for p in plt.seriesargs
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x, y = p[:x], p[:y]
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xmin = min(minimum(x), xmin)
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xmax = max(maximum(x), xmax)
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# catch exception for OHLC vectors
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try
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ymin = min(minimum(y), ymin)
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ymax = max(maximum(y), ymax)
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catch MethodError
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ymin, ymax = 0, 1
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end
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end
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scale = d[:scale]
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if scale & GR.OPTION_X_LOG == 0
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xmin, xmax = GR.adjustlimits(xmin, xmax)
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majorx = 5
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xtick = GR.tick(xmin, xmax) / majorx
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else
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xtick = majorx = 1
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end
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if scale & GR.OPTION_Y_LOG == 0
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ymin, ymax = GR.adjustlimits(ymin, ymax)
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majory = 5
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ytick = GR.tick(ymin, ymax) / majory
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else
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ytick = majory = 1
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end
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if scale & GR.OPTION_FLIP_X == 0
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xorg = (xmin, xmax)
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else
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xorg = (xmax, xmin)
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end
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if scale & GR.OPTION_FLIP_Y == 0
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yorg = (ymin, ymax)
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else
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yorg = (ymax, ymin)
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end
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GR.setviewport(viewport[1], viewport[2], viewport[3], viewport[4])
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GR.setwindow(xmin, xmax, ymin, ymax)
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if haskey(d, :background_color)
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GR.savestate()
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GR.setfillintstyle(GR.INTSTYLE_SOLID)
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GR.setfillcolorind(gr_getcolorind(d[:background_color]))
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GR.fillrect(xmin, xmax, ymin, ymax)
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GR.restorestate()
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end
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GR.setscale(scale)
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charheight = 0.03 * (viewport[4] - viewport[3])
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GR.setcharheight(charheight)
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GR.grid(xtick, ytick, 0, 0, majorx, majory)
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ticksize = 0.0125 * (viewport[2] - viewport[1])
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GR.axes(xtick, ytick, xorg[1], yorg[1], majorx, majory, ticksize)
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GR.axes(xtick, ytick, xorg[2], yorg[2], -majorx, -majory, -ticksize)
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if get(d, :title, "") != ""
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GR.savestate()
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GR.settextalign(GR.TEXT_HALIGN_CENTER, GR.TEXT_VALIGN_TOP)
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GR.text(0.5, min(ratio, 1), d[:title])
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GR.restorestate()
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end
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if get(d, :xlabel, "") != ""
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GR.savestate()
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GR.settextalign(GR.TEXT_HALIGN_CENTER, GR.TEXT_VALIGN_BOTTOM)
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GR.text(0.5, 0, d[:xlabel])
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GR.restorestate()
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end
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if get(d, :ylabel, "") != ""
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GR.savestate()
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GR.settextalign(GR.TEXT_HALIGN_CENTER, GR.TEXT_VALIGN_TOP)
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GR.setcharup(-1, 0)
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GR.text(0, 0.5 * (viewport[3] + viewport[4]), d[:ylabel])
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GR.restorestate()
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end
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GR.savestate()
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haskey(d, :linewidth) && GR.setlinewidth(d[:linewidth])
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GR.settextalign(GR.TEXT_HALIGN_LEFT, GR.TEXT_VALIGN_HALF)
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for p in plt.seriesargs
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if p[:linetype] == :path
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if haskey(p, :fillcolor)
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GR.setfillcolorind(gr_getcolorind(p[:fillcolor]))
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GR.setfillintstyle(GR.INTSTYLE_SOLID)
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end
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haskey(p, :linecolor) && GR.setlinecolorind(gr_getcolorind(p[:linecolor]))
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haskey(p, :linestyle) && GR.setlinetype(gr_linetype[p[:linestyle]])
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if p[:fillrange] != nothing
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GR.fillarea([p[:x][1]; p[:x]; p[:x][length(p[:x])]], [p[:fillrange]; p[:y]; p[:fillrange]])
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end
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GR.polyline(p[:x], p[:y])
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elseif p[:linetype] == :scatter
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haskey(p, :markercolor) && GR.setmarkercolorind(gr_getcolorind(p[:markercolor]))
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haskey(p, :markershape) && GR.setmarkertype(gr_markertype[p[:markershape]])
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if haskey(d, :markersize)
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if typeof(d[:markersize]) <: Number
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GR.setmarkersize(d[:markersize] / 4.0)
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GR.polymarker(p[:x], p[:y])
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else
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c = p[:markercolor]
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GR.setcolormap(-GR.COLORMAP_GLOWING)
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for i = 1:length(p[:x])
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if isa(c, ColorGradient) && p[:zcolor] != nothing
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ci = round(Int, 1000 + p[:zcolor][i] * 255)
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GR.setmarkercolorind(ci)
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end
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GR.setmarkersize(d[:markersize][i] / 4.0)
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GR.polymarker([p[:x][i]], [p[:y][i]])
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end
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end
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else
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GR.polymarker(p[:x], p[:y])
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end
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else
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println("TODO: add support for linetype $(p[:linetype])")
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end
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end
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if d[:legend]
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GR.selntran(0)
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GR.setscale(0)
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w = 0
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i = 0
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for p in plt.seriesargs
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if typeof(p[:label]) <: Array
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i += 1
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lab = p[:label][i]
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else
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lab = p[:label]
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end
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tbx, tby = GR.inqtext(0, 0, lab)
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w = max(w, tbx[3])
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end
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px = viewport[2] - 0.05 - w
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py = viewport[4] - 0.06
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GR.setfillintstyle(GR.INTSTYLE_SOLID)
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GR.setfillcolorind(0)
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GR.fillrect(px - 0.06, px + w + 0.02, py + 0.03, py - 0.03 * length(plt.seriesargs))
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GR.setlinecolorind(1)
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GR.setlinewidth(1)
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GR.drawrect(px - 0.06, px + w + 0.02, py + 0.03, py - 0.03 * length(plt.seriesargs))
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haskey(d, :linewidth) && GR.setlinewidth(d[:linewidth])
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i = 0
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for p in plt.seriesargs
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if p[:linetype] == :path
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haskey(p, :linecolor) && GR.setlinecolorind(gr_getcolorind(p[:linecolor]))
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haskey(p, :linestyle) && GR.setlinetype(gr_linetype[p[:linestyle]])
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GR.polyline([px - 0.05, px - 0.01], [py, py])
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elseif p[:linetype] == :scatter
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haskey(p, :markercolor) && GR.setmarkercolorind(gr_getcolorind(p[:markercolor]))
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haskey(p, :markershape) && GR.setmarkertype(gr_markertype[p[:markershape]])
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GR.polymarker([px - 0.04, px - 0.02], [py, py])
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end
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if typeof(p[:label]) <: Array
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i += 1
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lab = p[:label][i]
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else
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lab = p[:label]
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end
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GR.text(px, py, lab)
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py -= 0.03
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end
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GR.selntran(1)
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end
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GR.restorestate()
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if haskey(d, :anns)
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GR.savestate()
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for ann in d[:anns]
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x, y, val = ann
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x, y = GR.wctondc(x, y)
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alpha = val.font.rotation
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family = lowercase(val.font.family)
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GR.setcharheight(0.7 * val.font.pointsize / d[:size][2])
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GR.setcharup(sin(val.font.rotation), cos(val.font.rotation))
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if haskey(gr_font_family, family)
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GR.settextfontprec(100 + gr_font_family[family], GR.TEXT_PRECISION_STRING)
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end
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GR.settextcolorind(gr_getcolorind(val.font.color))
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GR.settextalign(gr_halign[val.font.halign], gr_valign[val.font.valign])
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GR.text(x, y, val.str)
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end
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GR.restorestate()
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end
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GR.updatews()
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end
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function _create_plot(pkg::GRPackage; kw...)
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isijulia() && GR.inline("png")
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d = Dict(kw)
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Plot(nothing, pkg, 0, d, Dict[])
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end
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function _add_series(::GRPackage, plt::Plot; kw...)
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d = Dict(kw)
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if d[:markershape] == :none
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d[:markershape] = :ellipse
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end
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push!(plt.seriesargs, d)
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plt
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end
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function _add_annotations{X,Y,V}(plt::Plot{GRPackage}, anns::AVec{@compat(Tuple{X,Y,V})})
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if haskey(plt.plotargs, :anns)
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append!(plt.plotargs[:anns], anns)
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else
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plt.plotargs[:anns] = anns
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end
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end
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# ----------------------------------------------------------------
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function _before_update_plot(plt::Plot{GRPackage})
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end
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function _update_plot(plt::Plot{GRPackage}, d::Dict)
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scale = 0
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d[:xscale] == :log10 && (scale |= GR.OPTION_X_LOG)
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d[:yscale] == :log10 && (scale |= GR.OPTION_Y_LOG)
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get(d, :xflip, false) && (scale |= GR.OPTION_FLIP_X)
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get(d, :yflip, false) && (scale |= GR.OPTION_FLIP_Y)
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plt.plotargs[:scale] = scale
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for k in (:title, :xlabel, :ylabel)
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haskey(d, k) && (plt.plotargs[k] = d[k])
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end
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end
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function _update_plot_pos_size(plt::PlottingObject{GRPackage}, d::Dict)
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end
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# ----------------------------------------------------------------
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function Base.getindex(plt::Plot{GRPackage}, i::Int)
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d = plt.seriesargs[i]
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d[:x], d[:y]
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end
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function Base.setindex!(plt::Plot{GRPackage}, xy::Tuple, i::Integer)
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d = plt.seriesargs[i]
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d[:x], d[:y] = xy
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plt
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end
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# ----------------------------------------------------------------
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function _create_subplot(subplt::Subplot{GRPackage}, isbefore::Bool)
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# TODO: build the underlying Subplot object. this is where you might layout the panes within a GUI window, for example
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true
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end
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function _expand_limits(lims, plt::Plot{GRPackage}, isx::Bool)
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# TODO: call expand limits for each plot data
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end
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function _remove_axis(plt::Plot{GRPackage}, isx::Bool)
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# TODO: if plot is inner subplot, might need to remove ticks or axis labels
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end
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# ----------------------------------------------------------------
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function Base.writemime(io::IO, m::MIME"image/png", plt::PlottingObject{GRPackage})
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isijulia() || return
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gr_display(plt)
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GR.emergencyclosegks()
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write(io, readall("gks.png"))
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end
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function Base.display(::PlotsDisplay, plt::Plot{GRPackage})
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gr_display(plt)
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end
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function Base.display(::PlotsDisplay, plt::Subplot{GRPackage})
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# TODO: display/show the subplot
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end
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