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Separate page objects/images from the fonts; does not store large images

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This commit is contained in:
Yury Delendik 2012-10-28 15:10:34 -05:00
parent d2c1868497
commit 69b72078c0
7 changed files with 97 additions and 73 deletions
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13
src/canvas.js
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@ -208,13 +208,14 @@ var CanvasGraphics = (function CanvasGraphicsClosure() {
// before it stops and shedules a continue of execution.
var kExecutionTime = 15;
function CanvasGraphics(canvasCtx, objs, textLayer) {
function CanvasGraphics(canvasCtx, commonObjs, objs, textLayer) {
this.ctx = canvasCtx;
this.current = new CanvasExtraState();
this.stateStack = [];
this.pendingClip = null;
this.res = null;
this.xobjs = null;
this.commonObjs = commonObjs;
this.objs = objs;
this.textLayer = textLayer;
if (canvasCtx) {
@ -283,6 +284,7 @@ var CanvasGraphics = (function CanvasGraphicsClosure() {
var executionEndIdx;
var endTime = Date.now() + kExecutionTime;
var commonObjs = this.commonObjs;
var objs = this.objs;
var fnName;
var slowCommands = this.slowCommands;
@ -301,13 +303,18 @@ var CanvasGraphics = (function CanvasGraphicsClosure() {
var deps = argsArray[i];
for (var n = 0, nn = deps.length; n < nn; n++) {
var depObjId = deps[n];
var common = depObjId.substring(0, 2) == 'g_';
// If the promise isn't resolved yet, add the continueCallback
// to the promise and bail out.
if (!objs.isResolved(depObjId)) {
if (!common && !objs.isResolved(depObjId)) {
objs.get(depObjId, continueCallback);
return i;
}
if (common && !commonObjs.isResolved(depObjId)) {
commonObjs.get(depObjId, continueCallback);
return i;
}
}
}
@ -620,7 +627,7 @@ var CanvasGraphics = (function CanvasGraphicsClosure() {
this.current.leading = -leading;
},
setFont: function CanvasGraphics_setFont(fontRefName, size) {
var fontObj = this.objs.get(fontRefName);
var fontObj = this.commonObjs.get(fontRefName);
var current = this.current;
if (!fontObj)