Electronjs how to detect if monitor/screen is off - electron

How can we detect if monitor is off. Electron provides electron.screen API where we can retrieve all displays electron.screen.getAllDisplays() but information provided here does not container about monitors' power status:
[{
id: 2528732444,
bounds: { x: 0, y: 0, width: 1920, height: 1080 },
workArea: { x: 0, y: 0, width: 1920, height: 1040 },
accelerometerSupport: 'unknown',
monochrome: false,
colorDepth: 24,
colorSpace: '{primaries:BT709, transfer:IEC61966_2_1, matrix:RGB, range:FULL}',
depthPerComponent: 8,
size: { width: 1920, height: 1080 },
workAreaSize: { width: 1920, height: 1040 },
scaleFactor: 1,
rotation: 0,
internal: false,
touchSupport: 'unknown'
},
...
]
If display is not plugged in to the PC then won't list it. However, if monitor is plugged in to PC and turned off it lists it in electron.screen.getAllDisplays() and but does not provide its status.

This is not possible, something like DVI or HDMI will still report a screen as being connected even if the display is off (which is why it shows up in getAllDisplays()).
The only option I could think of is would be to run a shell script that accesses the
Win32 API, but that would no longer be based on Electron.
You would use the Power Setting GUIDs of Windows.
GUID_CONSOLE_DISPLAY_STATE
6FE69556-704A-47A0-8F24-C28D936FDA47
The current monitor's display state has changed.
Windows 7, Windows Server 2008 R2, Windows Vista and Windows Server 2008: This notification is available starting with Windows 8 and Windows Server 2012.
The Data member is a DWORD with one of the following values.
0x0 - The display is off.
0x1 - The display is on.
0x2 - The display is dimmed.

Related

How to make legend color show up in Highcharts for a line graph under certain conditions?

I'm exploring Highcharts and it seems like a very comprehensive package! I have a question regarding legend colors.
I notice that when I use a linear color gradient for a line, the color next to the legend (I believe it's called the symbolColor) may or may not show up, depending on the format I use:
1) symbolColor works fine: linearGradient: [ 00, 00, 00, 350 ]
2) symbolColor doesn't show up: linearGradient: { x1: 0, y1: 0, x2: 0, y2: 1 }
I'd rather use the second format; it's easier and the first is not responsive.
Should the symbolColor always show up and this is an obscure issue/bug? Or am I doing something wrong? I also just noticed that if the marker is enabled in the plotOptions for series, symbolColor works fine with the second format. But I have many data points and don't want to use markers.
The fiddle graph has two lines -- purple and green -- and while the purple symbolColor using method (1) looks fine, you'll notice that the green symbolColor using method (2) doesn't show up.
https://jsfiddle.net/jwinkle/s6d9ah17/6/
In your HTML file, add:
<script src="https://code.highcharts.com/maps/modules/map.src.js"></script>
Above your chart code add:
Highcharts.addEvent(Highcharts.Chart.prototype, 'render', function() {
this.series.forEach(function(series) {
if (series.legendLine) {
var pathDef = series.legendLine.attr('d').split(' ');
pathDef[5] = parseFloat(pathDef[2]) + 0.0001;
series.legendLine.attr({
d: pathDef
});
}
})
});
The fix is in adding a smidge to your path definition (you can test this by going into the svg path element in dev tools and changing the last number in the 'd' attribute to a float:
<path fill="none" d="M 0 11 L 16 11" ... ></path>
becomes:
<path fill="none" d="M 0 11 L 16 11.1" ... ></path>
The function above goes through each series and massages the line data adding the fractional value in the right place. Total hack. However why the line does not appear if it does have this fractional value, I don't know. I would also test this across browsers to see that it works consistently as it may not (I tested in Chrome).
Here is a somewhat related issue where I cribbed the fix: https://www.highcharts.com/forum/viewtopic.php?t=38588
(Most of it is addressing a completely different problem, but the legend lines did show up so I investigated why).
If you don't want to use the extra library, you could probably write a native js function to find the legend lines and manipulate them in the same way.
Here, you can find a nice explanation of the problem.
The difference results from the fact that Highcharts uses 'userSpaceOnUse' as a default value for gradientUnits if a gradient is defined as an array.
Highcharts source code:
// Keep < 2.2 kompatibility
if (isArray(gradAttr)) {
(colorOptions as any)[gradName] = gradAttr = {
x1: gradAttr[0] as number,
y1: gradAttr[1] as number,
x2: gradAttr[2] as number,
y2: gradAttr[3] as number,
gradientUnits: 'userSpaceOnUse'
};
}
As a possible solution, you can set gradientUnits also for linearGradient defined as an object:
color: {
linearGradient: {
...,
gradientUnits: 'userSpaceOnUse'
},
...
}
Live demo: http://jsfiddle.net/BlackLabel/yz6sagxj/
Or modify the paths very slightly so that they are not perfectly horizontal
chart: {
events: {
render: function() {
this.series.forEach(function(series) {
if (series.legendLine) {
var pathDef = series.legendLine.attr('d').split(' ');
pathDef[5] = parseFloat(pathDef[2]) + 0.0001;
series.legendLine.attr({
d: pathDef
});
}
})
}
}
}
Live demo: http://jsfiddle.net/BlackLabel/L1kzg0cn/
Github thread: https://github.com/highcharts/highcharts/issues/1936
In addition to #Katharine's solution, here's another I discovered.
If I enable the marker in one series (setting the radius to 0) and then put the data in a second series which is linked to the previous, it works. (If I do it all in one series, there is again no legend color.)
series: [{
name: 'purple', lineWidth: 3, color: {
linearGradient: [ 00, 00, 00, 350 ],
//linearGradient: { x1: 0, y1: 0, x2: 0, y2: 1, },
stops: [
[0, 'purple'], // start
[1, 'black'] // end
],
},
data: [ 100, 95, 80, 60, 35, 50, 20, 10, 3, 2, 30, 40, ],
},{
marker: {
enabled: true,
radius: 0,
},
name: 'green', color: 'green', lineWidth: 3,
},{
linkedTo: ':previous',
lineWidth: 3, color: {
//linearGradient: [ 00, 00, 00, 350 ],
linearGradient: { x1: 0, y1: 0, x2: 0, y2: 1, },
stops: [
[0, 'green'], // start
[1, 'black'] // end
],
},
data: [ 100, 100, 95, 80, 60, 35, 50, 20, 10, 3, 2, 30, ],
}],
Here's the "fixed" fiddle: https://jsfiddle.net/jwinkle/wztq78n1/6/
I reported the original issue as a possible bug to Highcharts, and they confirmed that it's an SVG rendering problem out of their control.

Ruby combinations with ruleset & speed optimization?

Hey iam trying to figure out how i could limit my combinations of objects.
My problem:
I want to generate x teams with the most "point" outcome of 432 players, max team size is 7 players. Each player has an "position" attribute, every team must have each position one time and max 3 times. Also an player has an "worth" attribute. Each team cant be more worth than 70. Every player can only be one time in an team.
Data example:
{ name: 'James Harden', position: 'PG', weight: 15.9, points: 62.63 },
{ name: 'Russell Westbrook', position: 'PG', weight: 14.9, points: 56.12 },
{ name: 'LeBron James', position: 'SF', weight: 15.9, points: 55.67 },
{ name: 'Bradley Beal', position: 'SG', weight: 14.8, points: 52.69 },
{ name: 'Anthony Davis', position: 'PF', weight: 14.6, points: 52.16 },
{ name: 'Damian Lillard', position: 'PG', weight: 13.5, points: 49.34 },
{ name: 'Nikola Vucevic', position: 'C', weight: 12.9, points: 47.97 },
{ name: 'Domantas Sabonis', position: 'PF', weight: 12.8, points: 47.6 }
My try:
Well i tried to use the combination method from ruby:
b = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30]
print b.combination(7).to_a
that take 52 minutes for my laptop so solve all combinations. so i search for a way to do it faster an to apply more options like mentioned above to limit the result of teams.
Later if i find an solution i want to build this thing into an rails app with picture of the players and so on. Hopefully someone can give me an hint or has done something similar to give advices.
Also how would i controll to use more cpu kernels to speed up the proccess ?

Can I lay two Highcharts series side-by-side?

Looking at this example: http://www.highcharts.com/stock/demo/candlestick-and-volume
Is there a way that I can lay these two series side-by-side rather than stacked on top?
You can use axis.width and axis.left. You will not find them in axis official API, so you may encounter some issues with it, e.g. problem with a tooltip - issue on github.
The basic config for using two x axis next to each other:
xAxis: [{
width: 200,
left: 50
}, {
width: 200,
left: 300,
linkedTo: 0,
offset: 0
}],
Workaround for a tooltip position (shared tooltip does not seem to work correctly)
tooltip: {
shared: false,
shape: 'rect',
positioner: function(w, h, p) {
return {
x: p.plotX + this.chart.hoverSeries.xAxis.left - w / 2,
y: p.plotY
}
}
},
example: http://jsfiddle.net/fqc5np5g/

AS2 Final Fantasy type Inventory

Edit: since I wasn't clear originally, I'm having trouble working out an AS2 inventory with stacking consumables and equippable weapons/armor, my code below is the arrays holding the values I've been working on for years but haven't figured any viable way to make work. I'm looking for help/ideas of how I can make an array hold these values and make them stack
Since about 2008, I've been working on a flash RPG. While I'm making headway, my biggest roadblock is the lack of item system which is becoming increasingly hard to create in AS2 as all of the great coders are slowly refusing to touch flash anymore. It's far too late to start over in a different language, my main file is a well over 500mb .fla
Honestly, I'd pay whoever can figure this out cause this game has a few other issues I'd like help with after this is solved. I'll throw down $50 usd to whoever can make a good item system with these reqs
Has to be able to draw from a database of different item types (consumable, weapon, armor, accessory)
Consumables must be able to "stack" (weapons, armor, accessories dont need to stack)
Consumables must be able to directly affect hp/mp values (heal and the like)
Weapons Armour acc. must have values attached to them so they can affect the character's stats when equipped (ex.strength +10 or something)
Items must be able to be bought and sold
Items must be able to be displayed in text (movieclips of each item is not really necessary)
AS2
Pretty much this below : (Final Fantasy item/inventory example)
File size is not an issue whatsoever, these items must be able to be rendered in game
Literally if possible, use Final Fantasy 7 (or any FF game) as a basis for how the item system should work. If you can get it close to that, I'll pay you immediately. This is the code I was working on...
//ITEM SYSTEM
//this array will hold all items, inside of it, hopefully to be called inside of itself
//0.......1............2........3......4.... array element values
//name, description, effect, price, item type
_global.itemlist = [
//CONSUMABLES
["Sweetroot", "Restores 50 HP", 50, 100, "consumable"],
["Sugarroot", "Restores 100 HP", 100, 500, "consumable"],
["Candyroot", "Fully restores HP", 9999, 5000, "consumable"],
["Bitterroot", "Restores 50 MP", 50, 200, "consumable"],
["Sourroot", "Restores 100 MP", 100, 600, "consumable"],
["Tartroot", "Fully restores MP", 9999, 10000, "consumable"]
];
//0.......1............2....3....4...5....6.....7. array element values
//name, description, user, str, sta, def, mst, item type
_global.weaponlist = [
//WEAPONS
["Secred", "A mysterious zanbato with seals on the blade", "azul", 50, 0, 25, 10, "weapon"],
["Illuminite", "A thin weapon with a diamond rod for focusing light", "aseru", 50, 10, 10, 50, "weapon"],
["Fists", "A bare handed attack", "malforn", 50, 0, 55, 0, "weapon"],
["Kazeshini", "An oddly shaped blade for quick attacks ", "vayle", 20, 10, 25, 10, "weapon"],
["Yamato", "A katana with a blue hilt and a lightweight blade", "aoizi", 50, 20, 35, 50, "weapon"],
["Saleria", "A heavy scythe made from chenre absorbing crystal", "laava", 50, 20, 35, 50, "weapon"]
];
//0.......1............2....3....4...5....6...7 array element values
//name, description, str, sta, def, mst, price, item type
_global.armorlist = [
["Clothes", "light clothing", 0, 10, 10, 0, 500, "armor"],
["Armor", "plated armor", 0, 20, 20, 0, 5000,"armor"],
["Chain", "a thick chain for attack or defense", 20, 10, 10, 0, 500,"armor"],
["Shawl", "thin fabric worn by women", 0, 0, 5, 10, 7000,"armor"],
["Bodysuit", "a thick full body suit", 10, 20, 20, 0, 7500,"armor"],
["Spiked Araments", "armor covered in spikes, increases attack strength", 30, 0, 20, 0, 8000,"armor"]
];
//0.......1............2....3....4...5....6...7 array element values
//name, description, str, sta, def, mst, price, item type
_global.acclist = [
["Blade Ring", "raises attack", 30, 0, 0, 0, 500,"accesory"],
["Vigor Ring", "raises stamina", 0, 30, 0, 0, 500,"accesory"],
["Shield Ring", "raises defense", 0, 0, 30, 0, 500,"accesory"],
["Chenre Ring", "raises mental", 0, 0, 0, 30, 500,"accesory"],
["Knife Ring", "greatly raises attack", 120, 0, 0, 0, 50000,"accesory"],
["Vehemence Ring", "greatly raises stamina", 0, 120, 0, 0, 50000,"accesory"],
["Aegis Ring", "greatly raises defense", 0, 0, 120, 0, 50000,"accesory"],
["Aura Ring", "greatly raises mental", 0, 0, 0, 120, 50000,"accesory"]
];
get item Name with item[0][0];
get item Description with item[0][1];
get item Effect with item[0][2];
Example : If item[0] is being addressed then... (item[0] [0] =
Secred (as Name). Then item[0] [1] = Fists (as Description), and so on. trace(item[0][4]); should trace the name Sweetroot.

Highcharts bubble chart dataLabels overlapping

As shown in the picture (which is not the same code as the fiddle, but exhibits the problem), with Highcharts new bubble charts it seems like dataLabels like to sit on top of each other. Is there an easy workaround for this? I'd be happy to manually change the z-index on a per label basis, but this doesn't seem to work for bubble charts. Here's some sample code that fails to work as expected (try it in a fiddle):
series: [{
data: [{
x: 99,
y: 36,
z: 50
}, {
x: 99,
y: 74,
z: 55,
dataLabels: {
zIndex:15,
enabled: true,
}
}, {
x: 99,
y: 76,
z: 55,
dataLabels: {
zIndex: 1,
enabled: true
}
}
]
}],
You can set useHTML: true flag, and then set z-index: x property for dataLabels, see: http://jsfiddle.net/ZLmU8/4/
Apparently there is a labelrank property on the Highcharts point objects that can be used to dictate which point labels are on top. It can be used when you're creating your data like this:
data: [{
x: 1, y: 1, labelrank: 1, name: 'A'
},{
x: 1, y: 1, labelrank: 2, name: 'B'
}]
Or it can be updated on an individual point to bring that point's dataLabel to the front by doing something like this: chart.series[0].points[0].update({labelrank: 3});
I had a similar issue and created this question on SO that just was answered.
Edit
They have added info regarding series.data.labelrank to their docs as well: http://api.highcharts.com/highcharts#series.data.labelrank

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