conky-config/drawing/common.lua

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local M = {}
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local geom = require 'geom'
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local format = require 'format'
local theme = require 'theme'
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local dial = require 'dial'
local rect = require 'rect'
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local fill_rect = require 'fill_rect'
local compound_dial = require 'compound_dial'
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local arc = require 'arc'
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local circle = require 'circle'
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local text = require 'text'
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local tbl = require 'text_table'
local compound_bar = require 'compound_bar'
local text_threshold = require 'text_threshold'
local text_column = require 'text_column'
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local line = require 'line'
local timeseries = require 'timeseries'
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local scaled_timeseries = require 'scaled_timeseries'
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local style = require 'style'
local source = require 'source'
local pure = require 'pure'
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--------------------------------------------------------------------------------
-- constants
local FONT = 'Neuropolitical'
local NORMAL_FONT_SIZE = 13
local PLOT_LABEL_FONT_SIZE = 8
local TABLE_FONT_SIZE = 11
local HEADER_FONT_SIZE = 15
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local HEADER_HEIGHT = 45
local HEADER_UNDERLINE_CAP = CAIRO_LINE_CAP_ROUND
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local HEADER_UNDERLINE_OFFSET = 26
local HEADER_UNDERLINE_THICKNESS = 3
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local SEPARATOR_THICKNESS = 1
local TABLE_BODY_FORMAT = 8
local TABLE_VERT_PAD = 15
local TABLE_HORZ_PAD = 5
local TABLE_HEADER_PAD = 20
local TABLE_LINE_THICKNESS = 1
local PLOT_NUM_POINTS = 90
local PLOT_GRID_X_N = 9
local PLOT_GRID_Y_N = 4
local ARC_WIDTH = 2
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local DIAL_THETA0 = 90
local DIAL_THETA1 = 360
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--------------------------------------------------------------------------------
-- line helper functions
local _make_horizontal_line = function(x, y, w)
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return geom.make_line(geom.make_point(x, y), geom.make_point(x + w, y))
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end
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--------------------------------------------------------------------------------
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-- text helper functions
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local make_font_spec = function(f, size, bold)
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return {
family = f,
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size = size,
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weight = bold and CAIRO_FONT_WEIGHT_BOLD or CAIRO_FONT_WEIGHT_NORMAL,
slant = CAIRO_FONT_WEIGHT_NORMAL,
}
end
local normal_font_spec = make_font_spec(FONT, NORMAL_FONT_SIZE, false)
local label_font_spec = make_font_spec(FONT, PLOT_LABEL_FONT_SIZE, false)
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local _text_row_style = function(x_align, color)
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return text.config(normal_font_spec, color, x_align, 'center')
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end
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local _left_text_style = _text_row_style('left', theme.INACTIVE_TEXT_FG)
local _right_text_style = _text_row_style('right', theme.PRIMARY_FG)
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local _bare_text = function(pt, _text, _style)
return text.make_plain(pt, _text, _style)
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end
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local _left_text = function(pt, _text)
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return _bare_text(pt, _text, _left_text_style)
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end
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local _right_text = function(pt, _text)
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return _bare_text(pt, _text, _right_text_style)
end
--------------------------------------------------------------------------------
-- timeseries helper functions
local _default_grid_config = timeseries.grid_config(
PLOT_GRID_X_N,
PLOT_GRID_Y_N,
theme.PLOT_GRID_FG
)
local _default_plot_config = timeseries.config(
PLOT_NUM_POINTS,
theme.PLOT_OUTLINE_FG,
theme.PLOT_FILL_BORDER_PRIMARY,
theme.PLOT_FILL_BG_PRIMARY,
_default_grid_config
)
local _format_percent_label = function(_)
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return function(z) return string.format('%i%%', z * 100) end
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end
local _format_percent_maybe = function(z)
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if z == -1 then return 'N/A' else return string.format('%s%%', z) end
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end
local _percent_label_config = timeseries.label_config(
theme.INACTIVE_TEXT_FG,
label_font_spec,
_format_percent_label
)
local _make_timeseries = function(x, y, w, h, label_config, update_freq)
return timeseries.make(
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geom.make_box(x, y, w, h),
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update_freq,
_default_plot_config,
label_config
)
end
local _make_tagged_percent_timeseries = function(x, y, w, h, spacing, label, update_freq, _format)
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return {
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label = _left_text(geom.make_point(x, y), label),
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value = text_threshold.make_formatted(
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geom.make_point(x + w, y),
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nil,
_right_text_style,
_format,
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text_threshold.config(theme.CRITICAL_FG, 80, false)
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),
plot = M.make_percent_timeseries(
x,
y + spacing,
w,
h,
update_freq
),
}
end
--------------------------------------------------------------------------------
-- scaled timeseries helper functions
local _base_2_scale_data = function(m)
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return scaled_timeseries.scaling_parameters(2, m, 0.9)
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end
local _make_scaled_timeseries = function(x, y, w, h, f, min_domain, update_freq)
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return scaled_timeseries.make(
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geom.make_box(x, y, w, h),
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update_freq,
_default_plot_config,
timeseries.label_config(theme.INACTIVE_TEXT_FG, label_font_spec, f),
_base_2_scale_data(min_domain)
)
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end
--------------------------------------------------------------------------------
-- header
M.make_header = function(x, y, w, _text)
local bottom_y = y + HEADER_HEIGHT
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local underline_y = y + HEADER_UNDERLINE_OFFSET
return {
text = text.make_plain(
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geom.make_point(x, y),
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_text,
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text.config(
make_font_spec(FONT, HEADER_FONT_SIZE, true),
theme.HEADER_FG,
'left',
'top'
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)
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),
bottom_y = bottom_y,
underline = line.make(
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_make_horizontal_line(x, underline_y, w),
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line.config(
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style.line(HEADER_UNDERLINE_THICKNESS, HEADER_UNDERLINE_CAP),
theme.HEADER_FG,
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true
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)
)
}
end
M.draw_header = function(cr, header)
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text.draw(header.text, cr)
line.draw(header.underline, cr)
end
--------------------------------------------------------------------------------
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-- percent timeseries
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M.make_percent_timeseries = function(x, y, w, h, update_freq)
return _make_timeseries(x, y, w, h, _percent_label_config, update_freq)
end
--------------------------------------------------------------------------------
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-- tagged percent timeseries
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M.make_tagged_percent_timeseries = function(x, y, w, h, spacing, label, update_freq)
return _make_tagged_percent_timeseries(
x, y, w, h, spacing, label, update_freq, '%s%%'
)
end
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M.make_tagged_maybe_percent_timeseries = function(x, y, w, h, spacing, label, update_freq)
return _make_tagged_percent_timeseries(
x, y, w, h, spacing, label, update_freq, _format_percent_maybe
)
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end
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M.tagged_percent_timeseries_draw_static = function(pp, cr)
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text.draw(pp.label, cr)
timeseries.draw_static(pp.plot, cr)
end
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M.tagged_percent_timeseries_draw_dynamic = function(obj, cr)
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text_threshold.draw(obj.value, cr)
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timeseries.draw_dynamic(obj.plot, cr)
end
M.tagged_percent_timeseries_set = function(obj, percent)
local _percent = pure.round_percent(percent)
text.set(obj.value, _percent)
timeseries.update(obj.plot, _percent / 100)
end
M.tagged_maybe_percent_timeseries_set = function(obj, percent)
if percent == false then
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text.set(obj.value, -1)
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timeseries.update(obj.plot, 0)
else
M.tagged_percent_timeseries_set(obj, percent)
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end
end
--------------------------------------------------------------------------------
-- scaled plot
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-- Generate a format string for labels on y axis of plots. If the max of the
-- plot if numerically less than the number of grid lines, this means that
-- some number of decimal places are necessary to accurately display the number.
-- Note that this for now only works when the number of y grid lines if 4, as
-- it gives enough resolution for 1, 0.75, 0.5, and 0.25 but no more
M.y_label_format_string = function(plot_max, unit)
local num_fmt
if plot_max < 2 then
num_fmt = '%.2f'
elseif plot_max < 4 then
num_fmt = '%.1f'
else
num_fmt = '%.0f'
end
return string.format('%s %s', num_fmt, unit)
end
M.converted_y_label_format_generator = function(unit)
return function(plot_max)
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local new_prefix, new_max = format.convert_data_val(plot_max)
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local conversion_factor = plot_max / new_max
local fmt = M.y_label_format_string(new_max, new_prefix..unit..'/s')
return function(bytes)
return string.format(fmt, bytes / conversion_factor)
end
end
end
--------------------------------------------------------------------------------
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-- tagged scaled plot
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M.make_tagged_scaled_timeseries = function(x, y, w, h, format_fun, label_fun,
spacing, label, min_domain,
update_freq)
return {
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label = _left_text(geom.make_point(x, y), label),
value = text.make_formatted(
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geom.make_point(x + w, y),
0,
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_right_text_style,
format_fun
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),
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plot = _make_scaled_timeseries(x, y + spacing, w, h, label_fun, min_domain, update_freq),
}
end
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M.tagged_scaled_timeseries_draw_static = function(asp, cr)
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text.draw(asp.label, cr)
end
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M.tagged_scaled_timeseries_draw_dynamic = function(asp, cr)
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text.draw(asp.value, cr)
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scaled_timeseries.draw_dynamic(asp.plot, cr)
end
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M.tagged_scaled_timeseries_set = function(asp, value)
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text.set(asp.value, value)
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scaled_timeseries.update(asp.plot, value)
end
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--------------------------------------------------------------------------------
-- rate timecourse plots
local make_differential = function(update_frequency)
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return function(x0, x1)
-- mask overflow
if x1 > x0 then
return (x1 - x0) * update_frequency
else
return 0
end
end
end
M.make_rate_timeseries = function(x, y, w, h, format_fun, label_fun, spacing,
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label, min_domain, update_freq, init)
return {
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label = _left_text(geom.make_point(x, y), label),
value = text.make_formatted(
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geom.make_point(x + w, y),
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0,
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_right_text_style,
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format_fun
),
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plot = _make_scaled_timeseries(x, y + spacing, w, h, label_fun, min_domain, update_freq),
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prev_value = init,
derive = make_differential(update_freq),
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}
end
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M.update_rate_timeseries = function(obj, value)
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local rate = obj.derive(obj.prev_value, value)
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text.set(obj.value, rate)
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scaled_timeseries.update(obj.plot, rate)
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obj.prev_value = value
end
--------------------------------------------------------------------------------
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-- circle
M.make_circle = function(x, y, r)
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return circle.make(
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geom.make_circle(x, y, r),
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circle.config(style.line(ARC_WIDTH, CAIRO_LINE_CAP_BUTT), theme.BORDER_FG)
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)
end
--------------------------------------------------------------------------------
-- ring with text data in the center
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M.make_text_circle = function(x, y, r, fmt, threshhold, pre_function)
return {
ring = M.make_circle(x, y, r),
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value = text_threshold.make_formatted(
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geom.make_point(x, y),
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0,
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text.config(normal_font_spec, theme.PRIMARY_FG, 'center', 'center'),
fmt,
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text_threshold.config(theme.CRITICAL_FG, threshhold, pre_function)
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),
}
end
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M.text_circle_draw_static = function(tr, cr)
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arc.draw(tr.ring, cr)
end
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M.text_circle_draw_dynamic = function(tr, cr)
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text_threshold.draw(tr.value, cr)
end
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M.text_circle_set = function(tr, value)
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text_threshold.set(tr.value, value)
end
--------------------------------------------------------------------------------
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-- dial
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local threshold_indicator = function(threshold)
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return source.threshold_config(
theme.INDICATOR_FG_PRIMARY,
theme.INDICATOR_FG_CRITICAL,
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threshold
)
end
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M.make_dial = function(x, y, radius, thickness, threshold, _format, pre_function)
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return {
dial = dial.make(
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geom.make_arc(x, y, radius, DIAL_THETA0, DIAL_THETA1),
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arc.config(style.line(thickness, CAIRO_LINE_CAP_BUTT), theme.INDICATOR_BG),
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threshold_indicator(threshold)
),
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text_circle = M.make_text_circle(x, y, radius - thickness / 2 - 2, _format, threshold, pre_function),
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}
end
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M.dial_set = function(dl, value)
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dial.set(dl.dial, value)
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M.text_circle_set(dl.text_circle, value)
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end
M.dial_draw_static = function(dl, cr)
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dial.draw_static(dl.dial, cr)
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M.text_circle_draw_static(dl.text_circle, cr)
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end
M.dial_draw_dynamic = function(dl, cr)
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dial.draw_dynamic(dl.dial, cr)
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M.text_circle_draw_dynamic(dl.text_circle, cr)
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end
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--------------------------------------------------------------------------------
-- compound dial
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M.make_compound_dial = function(x, y, outer_radius, inner_radius, thickness,
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threshold, num_dials)
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return compound_dial.make(
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geom.make_arc(x, y, outer_radius, DIAL_THETA0, DIAL_THETA1),
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arc.config(style.line(thickness, CAIRO_LINE_CAP_BUTT), theme.INDICATOR_BG),
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threshold_indicator(threshold),
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inner_radius,
num_dials
)
end
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--------------------------------------------------------------------------------
-- annotated compound bar
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M.make_compound_bar = function(x, y, w, pad, labels, spacing, thickness, threshold)
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return {
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labels = text_column.make(
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geom.make_point(x, y),
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labels,
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_left_text_style,
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nil,
spacing
),
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bars = compound_bar.make(
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geom.make_point(x + pad, y),
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w - pad,
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line.config(
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style.line(thickness, CAIRO_LINE_CAP_BUTT),
theme.INDICATOR_BG,
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true
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),
threshold_indicator(threshold),
spacing,
#labels,
false
)
}
end
M.compound_bar_draw_static = function(cb, cr)
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text_column.draw(cb.labels, cr)
compound_bar.draw_static(cb.bars, cr)
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end
M.compound_bar_draw_dynamic = function(cb, cr)
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compound_bar.draw_dynamic(cb.bars, cr)
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end
M.compound_bar_set = function(cb, i, value)
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compound_bar.set(cb.bars, i, value)
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end
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--------------------------------------------------------------------------------
-- separator (eg a horizontal line)
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M.make_separator = function(x, y, w)
return line.make(
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_make_horizontal_line(x, y, w),
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line.config(
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style.line(SEPARATOR_THICKNESS, CAIRO_LINE_CAP_BUTT),
theme.BORDER_FG,
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true
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)
)
end
--------------------------------------------------------------------------------
-- text row (label with a value, aligned as far apart as possible)
M.make_text_row = function(x, y, w, label)
return {
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label = _left_text(geom.make_point(x, y), label),
value = _right_text(geom.make_point(x + w, y), nil),
}
end
M.text_row_draw_static = function(row, cr)
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text.draw(row.label, cr)
end
M.text_row_draw_dynamic = function(row, cr)
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text.draw(row.value, cr)
end
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M.text_row_set = function(row, value)
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text.set(row.value, value)
end
--------------------------------------------------------------------------------
-- text row with critical indicator
M.make_threshold_text_row = function(x, y, w, label, append_end, limit)
return{
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label = _left_text(geom.make_point(x, y), label),
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value = text_threshold.make_formatted(
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geom.make_point(x + w, y),
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nil,
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_right_text_style,
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append_end,
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text_threshold.config(theme.CRITICAL_FG, limit, false)
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)
}
end
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M.threshold_text_row_draw_static = M.text_row_draw_static
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M.threshold_text_row_draw_dynamic = function(row, cr)
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text_threshold.draw(row.value, cr)
end
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M.threshold_text_row_set = function(row, value)
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text_threshold.set(row.value, value)
end
--------------------------------------------------------------------------------
-- multiple text row separated by spacing
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M.make_text_rows_formatted = function(x, y, w, spacing, labels, format)
return {
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labels = text_column.make(
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geom.make_point(x, y),
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labels,
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_left_text_style,
nil,
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spacing
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),
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values = text_column.make_n(
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geom.make_point(x + w, y),
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#labels,
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_right_text_style,
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format,
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spacing,
0
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)
}
end
M.make_text_rows = function(x, y, w, spacing, labels)
return M.make_text_rows_formatted(
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x,
y,
w,
spacing,
labels,
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nil
)
end
M.text_rows_draw_static = function(rows, cr)
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text_column.draw(rows.labels, cr)
end
M.text_rows_draw_dynamic = function(rows, cr)
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text_column.draw(rows.values, cr)
end
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M.text_rows_set = function(rows, i, value)
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text_column.set(rows.values, i, value)
end
--------------------------------------------------------------------------------
-- table
local default_table_font_spec = make_font_spec(FONT, TABLE_FONT_SIZE, false)
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local default_table_config = function(label)
return tbl.config(
rect.config(
style.closed_poly(TABLE_LINE_THICKNESS, CAIRO_LINE_JOIN_MITER),
theme.BORDER_FG
),
line.config(
style.line(TABLE_LINE_THICKNESS, CAIRO_LINE_CAP_BUTT),
theme.BORDER_FG,
true
),
tbl.header_config(
default_table_font_spec,
theme.PRIMARY_FG,
TABLE_HEADER_PAD
),
tbl.body_config(
default_table_font_spec,
theme.INACTIVE_TEXT_FG,
{
tbl.column_config('Name', TABLE_BODY_FORMAT),
tbl.column_config('PID', false),
tbl.column_config(label, false),
}
),
tbl.padding(
TABLE_HORZ_PAD,
TABLE_VERT_PAD,
TABLE_HORZ_PAD,
TABLE_VERT_PAD
)
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)
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end
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M.make_text_table = function(x, y, w, h, n, label)
return tbl.make(
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geom.make_box(x, y, w, h),
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n,
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default_table_config(label)
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)
end
--------------------------------------------------------------------------------
-- panel
M.make_panel = function(x, y, w, h, thickness)
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return fill_rect.make(
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geom.make_box(x, y, w, h),
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rect.config(
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style.closed_poly(thickness, CAIRO_LINE_JOIN_MITER),
theme.BORDER_FG
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),
theme.PANEL_BG
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)
end
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--------------------------------------------------------------------------------
-- setup functions
local _combine_blocks = function(acc, new)
if new.active == true then
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local n = new.f(acc.next_y)
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table.insert(acc.objs, n.obj)
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acc.w = math.max(acc.w, n.w)
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acc.final_y = acc.next_y + n.h
acc.next_y = acc.final_y + new.offset
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end
return acc
end
local non_false = function(xs)
return pure.filter(function(x) return x ~= false end, xs)
end
local active_blocks = function(blockspecs)
local bs = pure.filter(function(b) return b[2] end, blockspecs)
return pure.map(function(b) return M.mk_block(table.unpack(b)) end, bs)
end
local flatten_sections = function(top, ...)
local f = function(acc, new)
if #new.blocks == 0 then
return acc
elseif #acc == 0 then
return new.blocks
else
return pure.flatten(
{acc, {M.mk_block(new.sep_fun, true, new.top)}, new.blocks}
)
end
end
return pure.reduce(f, active_blocks(top), {...})
end
M.reduce_blocks_ = function(header, point, width, top_blocks, ...)
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local mk_header = function(y)
local obj = M.make_header(point.x, y, width, header)
return M.mk_acc_static(
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width,
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obj.bottom_y - y,
function(cr) M.draw_header(cr, obj) end
)
end
local blocks = flatten_sections(top_blocks, ...)
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local r = pure.reduce(
_combine_blocks,
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{w = 0, next_y = point.y, final_y = point.y, objs = {}},
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{M.mk_block(mk_header, true, 0), table.unpack(blocks)}
)
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local us, ss, ds = table.unpack(pure.unzip(r.objs))
return {
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next_x = point.x + r.w,
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next_y = r.final_y,
update = pure.sequence(table.unpack(non_false(us))),
static = pure.sequence(table.unpack(ss)),
dynamic = pure.sequence(table.unpack(non_false(ds)))
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}
end
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M.mk_acc = function(w, h, u, s, d)
return {w = w, h = h, obj = {u, s, d}}
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end
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M.mk_acc_static = function(w, h, s)
return M.mk_acc(w, h, false, s, false)
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end
M.mk_block = function(f, active, offset)
return {f = f, active = active, offset = offset}
end
M.mk_section = function(top, sep_fun, ...)
return {
top = top,
sep_fun = sep_fun,
blocks = active_blocks({...})
}
end
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M.mk_seperator = function(width, x, y)
local separator = M.make_separator(x, y, width)
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return M.mk_acc_static(width, 0, pure.partial(line.draw, separator))
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end
return M