Sakurai/pdf.js
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cleanup

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sbarman 2011-06-19 15:01:52 -05:00
parent 07b6ee2d03
commit 9d286d789e
1 changed files with 15 additions and 15 deletions
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pdf.js
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@ -1738,6 +1738,7 @@ var CanvasExtraState = (function() {
this.fontSize = 0.0; this.fontSize = 0.0;
this.textMatrix = IDENTITY_MATRIX; this.textMatrix = IDENTITY_MATRIX;
this.leading = 0.0; this.leading = 0.0;
this.colorSpace = "DeviceRGB";
// Current point (in user coordinates) // Current point (in user coordinates)
this.x = 0.0; this.x = 0.0;
this.y = 0.0; this.y = 0.0;
@ -2424,9 +2425,9 @@ var CanvasGraphics = (function() {
setFillColorSpace: function(space) { setFillColorSpace: function(space) {
// TODO real impl // TODO real impl
if (space.name === "Pattern") if (space.name === "Pattern")
this.colorspace = "Pattern"; this.current.colorSpace = "Pattern";
else else
this.colorspace = null; this.current.colorSpace = "DeviceRGB";
}, },
setStrokeColor: function(/*...*/) { setStrokeColor: function(/*...*/) {
// TODO real impl // TODO real impl
@ -2451,7 +2452,7 @@ var CanvasGraphics = (function() {
setFillColorN: function(/*...*/) { setFillColorN: function(/*...*/) {
// TODO real impl // TODO real impl
var args = arguments; var args = arguments;
if (this.colorspace == "Pattern") { if (this.current.colorSpace == "Pattern") {
var patternName = args[0]; var patternName = args[0];
if (IsName(patternName)) { if (IsName(patternName)) {
var xref = this.xref; var xref = this.xref;
@ -2502,12 +2503,9 @@ var CanvasGraphics = (function() {
ctx.strokeStyle = this.makeCssRgb(0, 0, 0); ctx.strokeStyle = this.makeCssRgb(0, 0, 0);
} }
// not sure what to do with this TODO("TilingType");
var tilingType = dict.get("TilingType");
var matrix = dict.get("Matrix"); var matrix = dict.get("Matrix") || IDENTITY_MATRIX;
if (!matrix)
matrix = [1, 0, 0, 1, 0, 0];
var bbox = dict.get("BBox"); var bbox = dict.get("BBox");
var x0 = bbox[0], y0 = bbox[1], x1 = bbox[2], y1 = bbox[3]; var x0 = bbox[0], y0 = bbox[1], x1 = bbox[2], y1 = bbox[3];
@ -2526,7 +2524,7 @@ var CanvasGraphics = (function() {
// set the new canvas element context as the graphics context // set the new canvas element context as the graphics context
var tmpCtx = tmpCanvas.getContext("2d"); var tmpCtx = tmpCanvas.getContext("2d");
var oldCtx = this.ctx; var savedCtx = this.ctx;
this.ctx = tmpCtx; this.ctx = tmpCtx;
// normalize transform matrix so each step // normalize transform matrix so each step
@ -2554,11 +2552,10 @@ var CanvasGraphics = (function() {
pattern.code = this.compile(pattern, xref, res, []); pattern.code = this.compile(pattern, xref, res, []);
this.execute(pattern.code, xref, res); this.execute(pattern.code, xref, res);
// set the old context this.ctx = savedCtx;
this.ctx = oldCtx;
this.restore(); this.restore();
warn("Inverse pattern is painted"); TODO("Inverse pattern is painted");
var pattern = this.ctx.createPattern(tmpCanvas, "repeat"); var pattern = this.ctx.createPattern(tmpCanvas, "repeat");
this.ctx.fillStyle = pattern; this.ctx.fillStyle = pattern;
}, },
@ -2650,8 +2647,8 @@ var CanvasGraphics = (function() {
var gradient = this.ctx.createLinearGradient(x0, y0, x1, y1); var gradient = this.ctx.createLinearGradient(x0, y0, x1, y1);
// 10 samples seems good enough for now, but probably won't work // 10 samples seems good enough for now, but probably won't work
// if there are sharp color changes. Ideally, we could see the // if there are sharp color changes. Ideally, we would implement
// current image size and base the # samples on that. // the spec faithfully and add lossless optimizations.
var step = (t1 - t0) / 10; var step = (t1 - t0) / 10;
for (var i = t0; i <= t1; i += step) { for (var i = t0; i <= t1; i += step) {
@ -2664,7 +2661,10 @@ var CanvasGraphics = (function() {
// HACK to draw the gradient onto an infinite rectangle. // HACK to draw the gradient onto an infinite rectangle.
// PDF gradients are drawn across the entire image while // PDF gradients are drawn across the entire image while
// Canvas only allows gradients to be drawn in a rectangle // Canvas only allows gradients to be drawn in a rectangle
// Also, larger numbers seem to cause overflow which causes // The following bug should allow us to remove this.
// https://bugzilla.mozilla.org/show_bug.cgi?id=664884
//
// Also, larg numbers seem to cause overflow which causes
// nothing to be drawn. // nothing to be drawn.
this.ctx.fillRect(-1e10, -1e10, 2e10, 2e10); this.ctx.fillRect(-1e10, -1e10, 2e10, 2e10);
}, },