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Adding a Barchart display for voting #257

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merged 5 commits into from
Oct 6, 2018
Merged

Adding a Barchart display for voting #257

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d511778
Adding ChartJS
benrick Oct 1, 2018
8db27bb
Wire up charjs chart
benrick Oct 1, 2018
86745bc
Fit into a smaller area
benrick Oct 1, 2018
0362b2c
Add non-terrible colors
benrick Oct 1, 2018
5986281
Show and hide the voting barchart
benrick Oct 6, 2018
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Wire up charjs chart
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@benrick
benrick committed Oct 6, 2018
commit 8db27bbb2f18b30f13b6401228f40ba87bd0312f
82 changes: 34 additions & 48 deletions src/DevChatter.Bot.Web/wwwroot/js/voting.js
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Original file line number Diff line number Diff line change
@@ -1,65 +1,51 @@
var voting = (function () {
var options = [];
var votes = [];
var chart = {};
var data = {};

var optionsAnimation = {
scales: {
xAxes: [{
ticks: {
beginAtZero: true
}
}]
}
};

var voteEnd = function (ctx) {
ctx.clearRect(0, 0, 1920, 1080);
options = [];
votes = [];
chart = {};
data = {};
};

var voteReceived = function (ctx, voteInfo) {
votes = voteInfo.voteTotals;
let voteReceived = function (ctx, voteInfo) {
// TODO: Announce the vote.
displayVoteOverlay(ctx);
};

var voteStart = function (ctx, choices) {
options = choices;
votes = Array(choices.length).fill(0);
displayChart(ctx);
var dataSet = data["datasets"][0]["data"];
voteInfo.voteTotals.forEach(function(voteCount) {
dataSet.push(voteCount);
dataSet.shift();
});
chart.update();
};

function displayChart(ctx) {
var myChart = new Chart(ctx, {
type: 'horizontalBar',
data: {
labels: options,
datasets: [{
var voteStart = function (ctx, choices) {
data = {
labels: choices,
datasets: [
{
label: '# of Votes',
data: votes,
data: Array(choices.length).fill(0),
borderWidth: 1
}]
},
options: {
scales: {
xAxes: [{
ticks: {
beginAtZero: true
}
}]
}
}
]
};
chart = new Chart(ctx, {
type: 'horizontalBar',
data: data,
options: optionsAnimation
});
}

function displayVoteOverlay(ctx) {
var optionDisplays = options.map((x, i) => (i + 1) + " ) " + x + " - " + (votes[i] || '0'));
ctx.clearRect(0, 0, 1920, 1080);
ctx.fillStyle = "#cbcbcb";
var height = 20 + (40 * optionDisplays.length);
ctx.font = "30px Arial";
var textWidth = Math.max(...optionDisplays.map(x => ctx.measureText(x).width));
ctx.fillRect(0, 0, textWidth + 20, height);
displayChoices(ctx, optionDisplays);
}

function displayChoices(ctx, optionDisplays) {
ctx.fillStyle = "#000000";
for (var i = 0; i < optionDisplays.length; i++) {
ctx.fillText(optionDisplays[i], 10, 40 + 40*i);
}
}
};

return {
voteStart: voteStart,
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