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Refactor code for annotations

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This commit is contained in:
Mack Duan 2013-03-21 01:04:44 -07:00
parent e5b5c94925
commit f8f4b3f45d
39 changed files with 667 additions and 499 deletions
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36
src/util.js
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@ -424,11 +424,30 @@ var Util = PDFJS.Util = (function UtilClosure() {
}
};
Util.getInheritableProperty = function Util_getInheritableProperty(dict,
name) {
while (dict && !dict.has(name)) {
dict = dict.get('Parent');
}
if (!dict) {
return null;
}
return dict.get(name);
};
Util.inherit = function Util_inherit(sub, base, prototype) {
sub.prototype = Object.create(base.prototype);
sub.prototype.constructor = sub;
for (var prop in prototype) {
sub.prototype[prop] = prototype[prop];
}
};
return Util;
})();
var PageViewport = PDFJS.PageViewport = (function PageViewportClosure() {
function PageViewport(viewBox, scale, rotation, offsetX, offsetY) {
function PageViewport(viewBox, scale, rotation, offsetX, offsetY, dontFlip) {
this.viewBox = viewBox;
this.scale = scale;
this.rotation = rotation;
@ -440,25 +459,28 @@ var PageViewport = PDFJS.PageViewport = (function PageViewportClosure() {
var centerX = (viewBox[2] + viewBox[0]) / 2;
var centerY = (viewBox[3] + viewBox[1]) / 2;
var rotateA, rotateB, rotateC, rotateD;
switch (rotation % 360) {
case -180:
rotation = rotation % 360;
rotation = rotation < 0 ? rotation + 360 : rotation;
switch (rotation) {
case 180:
rotateA = -1; rotateB = 0; rotateC = 0; rotateD = 1;
break;
case -270:
case 90:
rotateA = 0; rotateB = 1; rotateC = 1; rotateD = 0;
break;
case -90:
case 270:
rotateA = 0; rotateB = -1; rotateC = -1; rotateD = 0;
break;
//case 360:
//case 0:
default:
rotateA = 1; rotateB = 0; rotateC = 0; rotateD = -1;
break;
}
if (dontFlip) {
rotateC = -rotateC; rotateD = -rotateD;
}
var offsetCanvasX, offsetCanvasY;
var width, height;
if (rotateA === 0) {
@ -494,7 +516,7 @@ var PageViewport = PDFJS.PageViewport = (function PageViewportClosure() {
var scale = 'scale' in args ? args.scale : this.scale;
var rotation = 'rotation' in args ? args.rotation : this.rotation;
return new PageViewport(this.viewBox.slice(), scale, rotation,
this.offsetX, this.offsetY);
this.offsetX, this.offsetY, args.dontFlip);
},
convertToViewportPoint: function PageViewport_convertToViewportPoint(x, y) {
return Util.applyTransform([x, y], this.transform);