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render.js
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render.js
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var $renderKey = {};
(function () {
"use strict";
// Some predefined sizes for our caps
var sizes = { cap: 54, padding: 2, margin: 6, spacing: 1 };
sizes.capsize = function(size) { return (size*sizes.cap) - (2*sizes.spacing); };
var magicShape = ("M{0} {1} h1 v-1 h3.5 v1 h5.05 v-1 h3.5 v1 h1" + // top contour
"v1 h1 v3.5 h-1 v5.05 h1 v3.5 h-1 v1" + // right
"h-1 v1 h-3.5 v-1 h-5.05 v1 h-3.5 v-1 h-1" + //bottom
"v-1 h-1 v-3.5 h1 v-5.05 h-1 v-3.5 h1 v-1");
// Lighten a color by the specified amount
function lightenColor(color,mod) {
var c = $color.sRGB8(color.r,color.g,color.b).Lab();
c.l = Math.min(100,c.l*mod);
return c.sRGB8();
}
$renderKey.getKeyRotationStyles = function(key) {
if(key.rotation_angle == 0) {
return "";
}
var angle = key.rotation_angle.toString() + "deg";
var origin = (sizes.capsize(key.rotation_x) + sizes.margin).toString() + "px " + (sizes.capsize(key.rotation_y) + sizes.margin).toString() + "px";
return "transform: rotate("+angle+"); -ms-transform: rotate("+angle+"); -webkit-transform: rotate("+angle+"); " +
"transform-origin: "+origin+"; -ms-transform-origin: "+origin+"; -webkit-transform-origin: "+origin+";";
};
// Given a key, generate the HTML needed to render it
var noRenderText = [0,2,1,3,0,4,2,3];
$renderKey.html = function(key, $sanitize) {
var html = "";
var capwidth = sizes.capsize(key.width), capwidth2 = sizes.capsize(key.width2);
var capheight = sizes.capsize(key.height), capheight2 = sizes.capsize(key.height2);
var capx = sizes.capsize(key.x) + sizes.margin, capx2 = sizes.capsize(key.x+key.x2)+sizes.margin;
var capy = sizes.capsize(key.y) + sizes.margin, capy2 = sizes.capsize(key.y+key.y2)+sizes.margin;
var jShaped = (capwidth2 !== capwidth) || (capheight2 !== capheight) || (capx2 !== capx) || (capy2 !== capy);
var darkColor = key.color;
var lightColor = lightenColor($color.hex(key.color), 1.2).hex();
var innerPadding = (2*sizes.margin) + (2*sizes.padding);
var borderStyle = "keyborder", bgStyle = "keybg";
key.centerx = key.align&1 ? true : false;
key.centery = key.align&2 ? true : false;
key.centerf = key.align&4 ? true : false;
if(key.ghost) {
borderStyle += " ghosted";
bgStyle += " ghosted";
}
// The border
html += "<div style='width:{0}px; height:{1}px; left:{2}px; top:{3}px; background-color:{4};' class='{5}'></div>\n"
.format( capwidth, capheight, capx, capy, darkColor, borderStyle );
if(jShaped) {
html += "<div style='width:{0}px; height:{1}px; left:{2}px; top:{3}px; background-color:{4};' class='{5}'></div>\n"
.format( capwidth2, capheight2, capx2, capy2, darkColor, borderStyle );
}
// The key edges
html += "<div style='width:{0}px; height:{1}px; left:{2}px; top:{3}px; background-color:{4};' class='{5}'></div>\n"
.format( capwidth, capheight, capx+1, capy+1, darkColor, bgStyle );
if(jShaped) {
html += "<div style='width:{0}px; height:{1}px; left:{2}px; top:{3}px; background-color:{4};' class='{5}'></div>\n"
.format( capwidth2, capheight2, capx2+1, capy2+1, darkColor, bgStyle );
}
if(!key.ghost) {
// The top of the cap
html += "<div class='keyborder inner' style='width:{0}px; height:{1}px; left:{2}px; top:{3}px; background-color:{4}; padding:{5}px;'></div>\n"
.format( capwidth-innerPadding, capheight-innerPadding, capx+sizes.margin, capy+(sizes.margin/2), lightColor, sizes.padding );
if(jShaped && !key.stepped) {
html += "<div class='keyborder inner' style='width:{0}px; height:{1}px; left:{2}px; top:{3}px; background-color:{4}; padding:{5}px;'></div>\n"
.format( capwidth2-innerPadding, capheight2-innerPadding, capx2+sizes.margin, capy2+(sizes.margin/2), lightColor, sizes.padding );
}
var maxWidth = capwidth-(2*sizes.margin);
var maxHeight = capheight-(2*sizes.margin);
if(jShaped && !key.stepped) {
maxWidth = Math.max(capwidth,capwidth2)-(2*sizes.margin);
maxHeight = Math.max(capheight,capheight2)-(2*sizes.margin);
html += "<div class='keyfg' style='width:{0}px; height:{1}px; left:{2}px; top:{3}px; background-color:{4}; padding:{5}px; background-size:{6}px {7}px; background-position:{8}px {9}px;'>\n"
.format( capwidth2-innerPadding, capheight2-innerPadding, capx2+sizes.margin+1, capy2+(sizes.margin/2)+1, lightColor, sizes.padding, maxWidth, maxHeight, Math.min(capx,capx2)-capx2, Math.min(capy,capy2)-capy2 );
}
html += "</div><div class='keyfg' style='width:{0}px; height:{1}px; left:{2}px; top:{3}px; background-color:{4}; padding:{5}px; background-size:{6}px {7}px; background-position:{8}px {9}px;'>\n"
.format( capwidth-innerPadding, capheight-innerPadding, capx+sizes.margin+1, capy+(sizes.margin/2)+1, lightColor, sizes.padding, maxWidth, maxHeight, Math.min(capx,capx2)-capx, Math.min(capy,capy2)-capy );
// The key labels
var textColor = lightenColor($color.hex(key.text), 1.2).hex();
html += "<div class='keylabels' style='width:{0}px; height:{1}px;'>".format(capwidth-innerPadding, capheight-innerPadding);
key.labels.forEach(function(label,i) {
if(label && label !== "" && !(key.align&noRenderText[i])) {
var sanitizedLabel = $sanitize(label.replace(/<([^a-zA-Z\/]|$)/,"<$1"));
html += "<div class='keylabel keylabel{2} centerx-{5} centery-{6} centerf-{7} textsize{8}' style='color:{1};width:{3}px;height:{4}px;'><div style='width:{3}px;max-width:{3}px;height:{4}px;'>{0}</div></div>\n"
.format(sanitizedLabel, i===4||i===5 ? key.text : textColor, i+1, capwidth-innerPadding, capheight-innerPadding,
key.centerx, key.centery, key.centerf, i>0 ? key.fontheight2 : key.fontheight);
}
});
html += "</div></div>";
}
key.rect = { x:capx, y:capy, w:capwidth, h:capheight, x2:capx+capwidth, y2:capy+capheight };
key.rect2 = { x:capx2, y:capy2, w:capwidth2, h:capheight2, x2:capx2+capwidth2, y2:capy2+capheight2 };
key.rectMax = { x:Math.min(capx,capx2), y:Math.min(capy,capy2), x2:Math.max(capx+capwidth,capx2+capwidth2), y2:Math.max(capy+capheight,capy2+capheight2) };
key.rectMax.w = key.rectMax.x2 - key.rectMax.x;
key.rectMax.h = key.rectMax.y2 - key.rectMax.y;
// Rotation matrix about the origin
var origin_x = sizes.capsize(key.rotation_x)+sizes.margin;
var origin_y = sizes.capsize(key.rotation_y)+sizes.margin;
key.mat = Math.transMatrix(origin_x, origin_y).mult(Math.rotMatrix(key.rotation_angle)).mult(Math.transMatrix(-origin_x, -origin_y));
// Construct the *eight* corner points, transform them, and determine the transformed bbox.
key.bbox = { x:9999999, y:9999999, x2:-9999999, y2:-9999999 };
var corners = [
{x:key.rect.x, y:key.rect.y},
{x:key.rect.x, y:key.rect.y2},
{x:key.rect.x2, y:key.rect.y},
{x:key.rect.x2, y:key.rect.y2},
{x:key.rect2.x, y:key.rect2.y},
{x:key.rect2.x, y:key.rect2.y2},
{x:key.rect2.x2, y:key.rect2.y},
{x:key.rect2.x2, y:key.rect2.y2},
];
for(var i = 0; i < corners.length; ++i) {
corners[i] = key.mat.transformPt(corners[i]);
key.bbox.x = Math.min(key.bbox.x, corners[i].x);
key.bbox.y = Math.min(key.bbox.y, corners[i].y);
key.bbox.x2 = Math.max(key.bbox.x2, corners[i].x);
key.bbox.y2 = Math.max(key.bbox.y2, corners[i].y);
}
key.bbox.w = key.bbox.x2 - key.bbox.x;
key.bbox.h = key.bbox.y2 - key.bbox.y;
// Keep an inverse transformation matrix so that we can transform mouse
// coordinates into key-space.
key.mat = Math.transMatrix(origin_x, origin_y).mult(Math.rotMatrix(-key.rotation_angle)).mult(Math.transMatrix(-origin_x, -origin_y));
// Determine the location of the rotation crosshairs for the key
key.crosshairs = "none";
if(key.rotation_x || key.rotation_y || key.rotation_angle) {
key.crosshairs_x = sizes.capsize(key.rotation_x) + sizes.margin;
key.crosshairs_y = sizes.capsize(key.rotation_y) + sizes.margin;
key.crosshairs = "block";
}
return html;
};
var hole_sizes = { cap: 19.05, margin: 20, gutter: 1, hole: 14 };
hole_sizes.origin = function(size) { return (size* (hole_sizes.cap + hole_sizes.gutter))};
hole_sizes.offset = function(size) { return (size*hole_sizes.cap)/2.0 - (hole_sizes.hole/2.0) + (size * hole_sizes.gutter/2.0)};
hole_sizes.cap_center = function(size) { return((size * hole_sizes.cap + size*hole_sizes.gutter/2.0)/2.0)}
sizes.capsize = function(size) { return (size*sizes.cap) - (2*sizes.spacing); };
$renderKey.svg = function(key, fancy, showOutlines, $sanitize) {
var svg = "";
var capwidth = hole_sizes.cap * key.width;
var capheight = hole_sizes.cap * key.height;
var capx = hole_sizes.origin(key.x) + hole_sizes.margin;
var capy = hole_sizes.origin(key.y) + hole_sizes.margin;
var holex = hole_sizes.origin(key.x) + hole_sizes.margin + hole_sizes.offset(key.width);
var holey = hole_sizes.origin(key.y) + hole_sizes.margin + hole_sizes.offset(key.height);
var darkColor = key.color;
var lightColor = lightenColor($color.hex(key.color), 1.2).hex();
var borderStyle = "keyborder", bgStyle = "keybg";
key.centerx = key.align&1 ? true : false;
key.centery = key.align&2 ? true : false;
key.centerf = key.align&4 ? true : false;
// The hole
svg += '<g transform="translate({0} {1}) rotate({2} {3} {4})">\n'.format( capx, capy,
key.rotation_angle,
hole_sizes.origin(key.rotation_x) + hole_sizes.margin + (hole_sizes.gutter * key.width)/2.0 - capx,
hole_sizes.origin(key.rotation_y) + hole_sizes.margin + (hole_sizes.gutter * key.height)/2.0 - capy);
if (fancy) {
svg += '<path d="{0}" fill="lightgrey" stroke="black" stroke-width=".1mm"/>'.format(
magicShape.format(
hole_sizes.offset(key.width), hole_sizes.offset(key.height)));
} else {
svg += '<rect width="{0}" height="{0}" x="{1}" y="{2}" stroke="black" stroke-width=".1mm" fill="lightgrey"/>\n'
.format(hole_sizes.hole, hole_sizes.offset(key.width), hole_sizes.offset(key.height));
}
// the outline of the cap edge.
if (showOutlines) {
svg += '<rect width="{0}" height="{1}" x="{2}" y="{3}" stroke="black" stroke-width=".1mm" fill="none"/>\n'
.format(capwidth, capheight, (hole_sizes.gutter * key.width)/2.0, (hole_sizes.gutter * key.height)/2.0);
}
svg += '</g>\n';
return svg;
};
}());