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Code Issues Releases Wiki Activity

Scale fixed-layout books

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This commit is contained in:
Jackson Ray Hamilton 2016-02-01 13:42:04 -08:00
parent 7b7e4d75a3
commit 06b7ad3adf
1 changed files with 13 additions and 0 deletions
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13
src/layout.js
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@ -125,6 +125,8 @@ EPUBJS.Layout.Fixed = function(){
EPUBJS.Layout.Fixed.prototype.format = function(documentElement, _width, _height, _gap){
var columnWidth = EPUBJS.core.prefixed('columnWidth');
var transform = EPUBJS.core.prefixed('transform');
var transformOrigin = EPUBJS.core.prefixed('transformOrigin');
var viewport = documentElement.querySelector("[name=viewport]");
var content;
var contents;
@ -145,6 +147,17 @@ EPUBJS.Layout.Fixed.prototype.format = function(documentElement, _width, _height
}
}
//-- Scale fixed documents so their contents don't overflow, and
// vertically and horizontally center the contents
var widthScale = _width / width;
var heightScale = _height / height;
var scale = widthScale < heightScale ? widthScale : heightScale;
documentElement.style.position = "absolute";
documentElement.style.top = "50%";
documentElement.style.left = "50%";
documentElement.style[transform] = "scale(" + scale + ") translate(-50%, -50%)";
documentElement.style[transformOrigin] = "0px 0px 0px";
//-- Adjust width and height
documentElement.style.width = width + "px" || "auto";
documentElement.style.height = height + "px" || "auto";