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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,257 @@ | ||
| -- TODO: | ||
| -- * need a better name | ||
| -- * make more spoon like (hotkeys, metadata, etc.) | ||
| -- * honor changes to checkInterval without having to stop first and then show | ||
| -- * document | ||
| -- * make appropriate for use outside of panel (behavior, level, etc) | ||
| -- * check memory usage; can we differentiate between truly in use vs disk caching to get a better idea of true "Free" memory? | ||
|
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||
| local canvas = require("hs.canvas") | ||
| local battery = require("hs.battery") | ||
| local timer = require("hs.timer") | ||
| local stext = require("hs.styledtext") | ||
| local host = require("hs.host") | ||
| local obj = {} | ||
|
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| local newFullBarGuage = function(barWidth) | ||
| barWidth = barWidth or obj.barWidth | ||
| return stext.new({ string.rep("|", barWidth), | ||
| { | ||
| starts = 1, | ||
| ends = barWidth / 2, | ||
| attributes = { | ||
| font = obj.baseFont, | ||
| color = { list = "ansiTerminalColors", name = "fgGreen" }, | ||
| } | ||
| }, { | ||
| starts = barWidth / 2 + 1, | ||
| ends = 3 * barWidth / 4, | ||
| attributes = { | ||
| font = obj.baseFont, | ||
| color = { list = "ansiTerminalColors", name = "fgYellow" }, | ||
| } | ||
| }, { | ||
| starts = 3 * barWidth / 4 + 1, | ||
| ends = barWidth, | ||
| attributes = { | ||
| font = obj.baseFont, | ||
| color = { list = "ansiTerminalColors", name = "fgRed" }, | ||
| } | ||
| } | ||
| }) | ||
| end | ||
|
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| obj.updateDisplay = function(cpuUsage) | ||
| obj._cpuPoll = nil | ||
|
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||
| -- CPU Usage | ||
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| local cpuGuage = newFullBarGuage() | ||
| local cpuActive = math.floor(cpuUsage.overall.active + .5) | ||
| if cpuActive < 100 then | ||
| cpuGuage = cpuGuage:setStyle({ color = obj.emptyBar }, math.ceil(obj.barWidth * cpuActive / 100), #cpuGuage) | ||
| end | ||
|
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| cpuGuage = stext.new("CPU ", { | ||
| font = obj.baseFont, | ||
| color = { | ||
| list = "ansiTerminalColors", | ||
| name = "fgBlack" | ||
| }, | ||
| }) .. cpuGuage .. stext.new(string.format(" %3d%% utilization", cpuActive), { | ||
| font = obj.baseFont, | ||
| color = { | ||
| list = "ansiTerminalColors", | ||
| name = (cpuActive > 75) and "fgRed" or ((cpuActive > 50) and "fgYellow" or "fgGreen"), | ||
| }, | ||
| }) | ||
|
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||
| -- RAM Usage | ||
|
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| local ramGuage = newFullBarGuage() | ||
|
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||
| -- from top-107 source at http://opensource.apple.com/release/os-x-10116/ | ||
| local vm = host.vmStat() | ||
| local totalFree = (vm.pagesFree + vm.pagesSpeculative) * vm.pageSize | ||
| local totalUsed = (vm.pagesWiredDown + vm.pagesInactive + vm.pagesActive + vm.pagesUsedByVMCompressor) * vm.pageSize | ||
| totalFree = totalFree / (1024 * 1024 * 1024) -- convert to GB | ||
| totalUsed = totalUsed / (1024 * 1024 * 1024) -- convert to GB | ||
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| local totalRam = totalFree + totalUsed | ||
| local percentInUse = totalUsed / totalRam | ||
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| ramGuage = ramGuage:setStyle({ color = obj.emptyBar }, math.ceil(obj.barWidth * percentInUse), #ramGuage) | ||
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| ramGuage = stext.new("RAM ", { | ||
| font = obj.baseFont, | ||
| color = { | ||
| list = "ansiTerminalColors", | ||
| name = "fgBlack" | ||
| }, | ||
| }) .. ramGuage | ||
|
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| local active = math.floor(100 * percentInUse) | ||
| ramGuage = ramGuage .. stext.new(string.format(" %3d%% used, %.2fGB free", active, totalFree), { | ||
| font = obj.baseFont, | ||
| color = { | ||
| list = "ansiTerminalColors", | ||
| name = (active > 75) and "fgRed" or ((active > 50) and "fgYellow" or "fgGreen"), | ||
| }, | ||
| }) | ||
|
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||
| -- Battery Usage | ||
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| local batteryGuage = newFullBarGuage() | ||
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| local max_charge = battery.maxCapacity() | ||
| local cur_charge = battery.capacity() | ||
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| percentInUse = max_charge and cur_charge and (cur_charge / max_charge) or 0 | ||
| batteryGuage = batteryGuage:setStyle({ color = obj.emptyBar }, 1, math.ceil(obj.barWidth * (1 - percentInUse))) | ||
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| batteryGuage = stext.new("Bat ", { | ||
| font = obj.baseFont, | ||
| color = { | ||
| list = "ansiTerminalColors", | ||
| name = "fgBlack" | ||
| }, | ||
| }) .. batteryGuage | ||
|
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||
| if max_charge and cur_charge then | ||
| local avail = math.floor(100 * percentInUse) | ||
| batteryGuage = batteryGuage .. stext.new(string.format(" %3d%% charged, %d mAh", avail, cur_charge), { | ||
| font = obj.baseFont, | ||
| color = { | ||
| list = "ansiTerminalColors", | ||
| name = (avail > 50) and "fgGreen" or ((avail > 25) and "fgYellow" or "fgRed"), | ||
| }, | ||
| }) | ||
| else | ||
| batteryGuage = batteryGuage .. stext.new(" n/a", { | ||
| font = stext.convertFont(obj.baseFont, stext.fontTraits.italicFont), | ||
| color = { | ||
| list = "ansiTerminalColors", | ||
| name = "fgBlack" | ||
| }, | ||
| }) | ||
| end | ||
|
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||
| -- Build Output | ||
|
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| -- styledtext concatenation isn't honoring the style settings for the text *after* the line break... until I can | ||
| -- determine if this is a bug or a limitation, this workaround does the trick | ||
| local lineBreak = stext.new("\n", { font = obj.baseFont }) | ||
|
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| local final = cpuGuage .. lineBreak .. ramGuage .. lineBreak .. batteryGuage | ||
|
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| if obj.includeTime then | ||
| final = final .. lineBreak .. stext.new("Last check: " .. os.date("%c"), { | ||
| font = stext.convertFont({ | ||
| name = obj.baseFont.name, | ||
| size = obj.baseFont.size - 2, | ||
| }, stext.fontTraits.italicFont), | ||
| color = { | ||
| list = "ansiTerminalColors", | ||
| name = "fgBlack" | ||
| }, | ||
| paragraphStyle = { alignment = "right" }, | ||
| }) | ||
| end | ||
|
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| local outputSize = obj.canvas:minimumTextSize(final) | ||
|
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| obj.canvas.output.text = final | ||
| obj.canvas.output.frame = { | ||
| x = obj.padding, | ||
| y = obj.padding, | ||
| h = outputSize.h, | ||
| w = outputSize.w, | ||
| } | ||
| obj.canvas:frame{ | ||
| x = obj.location.x, | ||
| y = obj.location.y, | ||
| h = outputSize.h + obj.padding * 2, | ||
| w = outputSize.w + obj.padding * 2, | ||
| } | ||
|
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||
| -- in case they changed | ||
| obj.canvas.background.roundedRectRadii = { xRadius = obj.cornerRadius, yRadius = obj.cornerRadius } | ||
| obj.canvas.background.fillColor = obj.backgroundColor | ||
| obj.canvas.background.strokeColor = obj.backgroundBorder | ||
|
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||
| -- override default repeat interval with the actual desired value because it may change between calls | ||
| -- wrapped in if just in case :hide is called after triggered but before HS actually runs this callback | ||
| -- (unlikely, but I've seen weirder) | ||
| if obj._timer then obj._timer:setNextTrigger(obj.checkInterval) end | ||
| end | ||
|
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| obj.baseFont = { name = "Menlo", size = 12 } | ||
| obj.barWidth = 20 | ||
| obj.emptyBar = { white = 0.5 } | ||
| obj.padding = 10 | ||
| obj.location = { x = 100, y = 100 } | ||
| obj.checkInterval = 30 | ||
| obj.timeSlice = 1 | ||
| obj.includeTime = true | ||
| obj.cornerRadius = 5 | ||
| obj.backgroundColor = { alpha = .7, white = .5 } | ||
| obj.backgroundBorder = { alpha = .5 } | ||
|
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||
| -- a typical height and width for this output on my machine; it will change as soon as there is data, so accuracy isn't important | ||
| local defaultSize = { h = 88, w = 360 } | ||
| obj.canvas = canvas.new{ x = obj.location.x, y = obj.location.y, h = defaultSize.h, w = defaultSize.w, } | ||
|
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| local initialMsg = stext.new("awaiting data collection", { | ||
| font = stext.convertFont(obj.baseFont, stext.fontTraits.italicFont), | ||
| color = { | ||
| list = "ansiTerminalColors", | ||
| name = "fgBlack" | ||
| }, | ||
| paragraphStyle = { alignment = "center" }, | ||
| }) | ||
| local msgSize = obj.canvas:minimumTextSize(initialMsg) | ||
|
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| obj.canvas[#obj.canvas + 1] = { | ||
| id = "background", | ||
| type = "rectangle", | ||
| fillColor = obj.backgroundColor, | ||
| strokeColor = obj.backgroundBorder, | ||
| roundedRectRadii = { xRadius = obj.cornerRadius, yRadius = obj.cornerRadius }, | ||
| clipToPath = true, -- makes for sharper edges | ||
| } | ||
| obj.canvas[#obj.canvas + 1] = { | ||
| id = "output", | ||
| type = "text", | ||
| text = initialMsg, | ||
| frame = { | ||
| x = (defaultSize.w - msgSize.w) / 2, | ||
| y = (defaultSize.h - msgSize.h) / 2, | ||
| h = msgSize.h, | ||
| w = msgSize.w, | ||
| }, | ||
| } | ||
|
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| obj.show = function(self) | ||
| self = self or obj -- correct for calling this as a function | ||
| if not obj._timer then | ||
| -- we use setNextTrigger to start and maintain the timer, so the actual interval here is irrelevant | ||
| obj._timer = timer.doEvery(300, function() | ||
| obj._cpuPoll = host.cpuUsage(obj.timeSlice, obj.updateDisplay) | ||
| end) | ||
| end | ||
| obj.canvas:show() | ||
| obj._timer:setNextTrigger(0) | ||
| return self | ||
| end | ||
|
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| obj.hide = function(self) | ||
| self = self or obj -- correct for calling this as a function | ||
| if obj._timer then | ||
| obj._timer:stop() | ||
| obj._timer = nil | ||
| end | ||
| obj.canvas:hide() | ||
| return self | ||
| end | ||
|
|
||
| return obj |
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