Merge branch 'master' of github.com:andreasgal/pdf.js

This commit is contained in:
Andreas Gal 2011-05-09 18:04:31 -07:00
commit f16e6b8d1c

131
pdf.js
View File

@ -1574,6 +1574,8 @@ var Interpreter = (function() {
this.map = {
// Graphics state
w: gfx.setLineWidth,
J: gfx.setLineCap,
j: gfx.setLineJoin,
d: gfx.setDash,
q: gfx.save,
Q: gfx.restore,
@ -1601,6 +1603,7 @@ var Interpreter = (function() {
},
Td: gfx.moveText,
Tj: gfx.showText,
TJ: gfx.showSpacedText,
// Type3 fonts
@ -1678,6 +1681,12 @@ var EchoGraphics = (function() {
setLineWidth: function(width) {
this.printdentln(width +" w");
},
setLineCap: function(style) {
this.printdentln(style +" J");
},
setLineJoin: function(style) {
this.printdentln(style +" j");
},
setDash: function(dashArray, dashPhase) {
this.printdentln(""+ dashArray +" "+ dashPhase +" d");
},
@ -1743,6 +1752,9 @@ var EchoGraphics = (function() {
showText: function(text) {
this.printdentln("( "+ text +" ) Tj");
},
showSpacedText: function(arr) {
this.printdentln(""+ arr +" TJ");
},
// Type3 fonts
@ -1792,7 +1804,11 @@ var EchoGraphics = (function() {
// However, PDF needs a bit more state, which we store here.
var CanvasExtraState = (function() {
function constructor() {
// Current text position (in text coordinates)
this.fontSize = 0.0;
// Current point (in user coordinates)
this.curX = 0.0;
this.curY = 0.0;
// Start of text line (in text coordinates)
this.lineX = 0.0;
this.lineY = 0.0;
}
@ -1808,6 +1824,9 @@ var CanvasGraphics = (function() {
this.stateStack = [ ];
}
var LINE_CAP_STYLES = [ "butt", "round", "square" ];
var LINE_JOIN_STYLES = [ "miter", "round", "bevel" ];
constructor.prototype = {
beginDrawing: function(mediaBox) {
var cw = this.ctx.canvas.width, ch = this.ctx.canvas.height;
@ -1823,6 +1842,12 @@ var CanvasGraphics = (function() {
setLineWidth: function(width) {
this.ctx.lineWidth = width;
},
setLineCap: function(style) {
this.ctx.lineCap = LINE_CAP_STYLES[style];
},
setLineJoin: function(style) {
this.ctx.lineJoin = LINE_JOIN_STYLES[style];
},
setDash: function(dashArray, dashPhase) {
// TODO
},
@ -1882,21 +1907,38 @@ var CanvasGraphics = (function() {
// TODO
},
setFont: function(font, size) {
this.ctx.font = size +'px '+ font.BaseFont;
this.current.fontSize = size;
this.ctx.font = this.current.fontSize +'px '+ font.BaseFont;
},
moveText: function (x, y) {
this.current.lineX = x;
this.current.lineY = y;
this.current.lineX += x;
this.current.lineY += y;
// XXX transform
this.current.curX = this.current.lineX;
this.current.curY = this.current.lineY;
},
showText: function(text) {
this.ctx.save();
this.ctx.translate(0, 2 * this.current.lineY);
this.ctx.translate(0, 2 * this.current.curY);
this.ctx.scale(1, -1);
this.ctx.fillText(text, this.current.lineX, this.current.lineY);
this.ctx.fillText(text, this.current.curX, this.current.curY);
this.current.curX += this.ctx.measureText(text).width;
this.ctx.restore();
},
showSpacedText: function(arr) {
for (var i = 0; i < arr.length; ++i) {
var e = arr[i];
if (IsNum(e)) {
this.current.curX -= e * 0.001 * this.current.fontSize;
} else if (IsString(e)) {
this.showText(e);
} else {
this.error("Unexpected element in TJ array");
}
}
},
// Type3 fonts
@ -2034,6 +2076,83 @@ var tests = [
eof()
]
},
{ name: "TJ",
res: {
// XXX not structured correctly
Font: {
F1: { Type: "Font",
Subtype: "Type1",
Name: "F1",
BaseFont: "Georgia",
Encoding: "MacRomanEncoding"
},
}
},
mediaBox: [ 0, 0, 612, 792 ],
objs: [
cmd("BT"),
name("F1"), real(17.9328), cmd("Tf"),
real(80.5159), real(700.6706), cmd("Td"),
[ string("Trace-based Just-in-Time") ], cmd("TJ"),
int(0), int(-18), cmd("Td"),
[ string("T"), int(74), string("race-based"), int(-250), string("J"), int(15), string("ust-in-T"), int(18), string("ime") ], cmd("TJ"),
cmd("ET"),
eof()
]
},
{ name: "Line cap",
res: { },
mediaBox: [ 0, 0, 612, 792 ],
objs: [
int(5), cmd("w"),
int(0), cmd("J"), // butt cap
int(100), int(692), cmd("m"),
int(200), int(692), cmd("l"),
cmd("S"),
int(1), cmd("J"), // round cap
int(100), int(686), cmd("m"),
int(200), int(686), cmd("l"),
cmd("S"),
int(2), cmd("J"), // projecting square cap
int(100), int(680), cmd("m"),
int(200), int(680), cmd("l"),
cmd("S"),
eof()
],
},
{ name: "Line join",
res: { },
mediaBox: [ 0, 0, 612, 792 ],
objs: [
int(20), cmd("w"),
int(0), cmd("j"), // miter join
int(100), int(692), cmd("m"),
int(150), int(642), cmd("l"),
int(200), int(692), cmd("l"),
cmd("S"),
int(1), cmd("j"), // round join
int(250), int(692), cmd("m"),
int(300), int(642), cmd("l"),
int(350), int(692), cmd("l"),
cmd("S"),
int(2), cmd("j"), // bevel join
int(400), int(692), cmd("m"),
int(450), int(642), cmd("l"),
int(500), int(692), cmd("l"),
cmd("S"),
eof()
],
},
];