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restore long-form function names and a mapping table

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Andreas Gal 2011-05-06 22:15:18 -07:00
parent d65ebb7533
commit e655900785
1 changed files with 100 additions and 58 deletions
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pdf.js
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@ -801,11 +801,52 @@ var PDFDoc = (function () {
})(); })();
var Interpreter = (function() { var Interpreter = (function() {
function constructor(xref, resources, catalog, graphics) { function constructor(xref, resources, catalog, gfx) {
this.xref = xref; this.xref = xref;
this.res = resources; this.res = resources;
this.catalog = catalog; this.catalog = catalog;
this.gfx = graphics; this.gfx = gfx;
this.map = {
// Graphics state
w: gfx.setLineWidth,
d: gfx.setDash,
q: gfx.save,
Q: gfx.restore,
cm: gfx.transform,
// Path
m: gfx.moveTo,
l: gfx.lineTo,
c: gfx.curveTo,
h: gfx.closePath,
re: gfx.rectangle,
S: gfx.stroke,
f: gfx.fill,
B: gfx.fillStroke,
b: gfx.closeFillStroke,
// Clipping
// Text
BT: gfx.beginText,
ET: gfx.endText,
Tf: gfx.setFont,
Td: gfx.moveText,
Tj: gfx.showText,
// Type3 fonts
// Color
g: gfx.setFillGray,
RG: gfx.setStrokeRGBColor,
rg: gfx.setFillRGBColor,
// Shading
// Images
// XObjects
// Marked content
// Compatibility
};
} }
constructor.prototype = { constructor.prototype = {
@ -820,12 +861,13 @@ var Interpreter = (function() {
height: mediaBox[3] - mediaBox[1] }); height: mediaBox[3] - mediaBox[1] });
var args = []; var args = [];
var gfx = this.gfx; var gfx = this.gfx;
var map = this.map;
var obj; var obj;
while (!IsEOF(obj = parser.getObj())) { while (!IsEOF(obj = parser.getObj())) {
if (IsCmd(obj)) { if (IsCmd(obj)) {
var cmd = obj.cmd; var cmd = obj.cmd;
var fn = gfx[cmd]; var fn = map[cmd];
if (fn && cmd[0] != "$") { if (fn) {
if (fn.length != args.length) if (fn.length != args.length)
this.error("Invalid number of arguments '" + cmd + "'"); this.error("Invalid number of arguments '" + cmd + "'");
fn.apply(gfx, args); fn.apply(gfx, args);
@ -863,85 +905,85 @@ var EchoGraphics = (function() {
}, },
// Graphics state // Graphics state
w: function(width) { // setLineWidth setLineWidth: function(width) {
this.printdentln(width +" w"); this.printdentln(width +" w");
}, },
d: function(dashArray, dashPhase) { // setDash setDash: function(dashArray, dashPhase) {
this.printdentln(""+ dashArray +" "+ dashPhase +" d"); this.printdentln(""+ dashArray +" "+ dashPhase +" d");
}, },
q: function() { // save save: function() {
this.printdentln("q"); this.printdentln("q");
}, },
Q: function() { // restore restore: function() {
this.printdentln("Q"); this.printdentln("Q");
}, },
cm: function(a, b, c, d, e, f) { // transform transform: function(a, b, c, d, e, f) {
this.printdentln(""+ a +" "+ b +" "+ c + this.printdentln(""+ a +" "+ b +" "+ c +
" "+d +" "+ e +" "+ f + " cm"); " "+d +" "+ e +" "+ f + " cm");
}, },
// Path // Path
m: function(x, y) { // moveTo moveTo: function(x, y) {
this.printdentln(""+ x +" "+ y +" m"); this.printdentln(""+ x +" "+ y +" m");
}, },
l: function(x, y) { // lineTo lineTo: function(x, y) {
this.printdentln(""+ x +" "+ y +" l"); this.printdentln(""+ x +" "+ y +" l");
}, },
c: function(x1, y1, x2, y2, x3, y3) { // curvoTo curveTo: function(x1, y1, x2, y2, x3, y3) {
this.printdentln(""+ x1 +" "+ y1 + this.printdentln(""+ x1 +" "+ y1 +
" "+ x2 +" "+ y2 + " "+ x2 +" "+ y2 +
" "+ x3 +" "+ y3 + " c"); " "+ x3 +" "+ y3 + " c");
}, },
h: function() { // closePath closePath: function() {
this.printdentln("h"); this.printdentln("h");
}, },
re: function(x, y, width, height) { // rectangle rectangle: function(x, y, width, height) {
this.printdentln(""+ x +" "+ y + " "+ width +" "+ height +" re"); this.printdentln(""+ x +" "+ y + " "+ width +" "+ height +" re");
}, },
S: function() { // stroke stroke: function() {
this.printdentln("S"); this.printdentln("S");
}, },
f: function() { // fill fill: function() {
this.printdentln("f"); this.printdentln("f");
}, },
B: function() { // fillStroke fillStroke: function() {
this.printdentln("B"); this.printdentln("B");
}, },
b: function() { // closeFillStroke closeFillStroke: function() {
this.printdentln("b"); this.printdentln("b");
}, },
// Clipping // Clipping
// Text // Text
BT: function() { // beginText beginText: function() {
this.printdentln("BT"); this.printdentln("BT");
this.indent(); this.indent();
}, },
ET: function() { // endText endText: function() {
this.dedent(); this.dedent();
this.printdentln("ET"); this.printdentln("ET");
}, },
Tf: function(font, size) { // setFont setFont: function(font, size) {
this.printdentln("/"+ font.name +" "+ size +" Tf"); this.printdentln("/"+ font.name +" "+ size +" Tf");
}, },
Td: function (x, y) { // moveText moveText: function (x, y) {
this.printdentln(""+ x +" "+ y +" Td"); this.printdentln(""+ x +" "+ y +" Td");
}, },
Tj: function(text) { // showText showText: function(text) {
this.printdentln("( "+ text +" ) Tj"); this.printdentln("( "+ text +" ) Tj");
}, },
// Type3 fonts // Type3 fonts
// Color // Color
g: function(gray) { // setFillGray setFillGray: function(gray) {
this.printdentln(""+ gray +" g"); this.printdentln(""+ gray +" g");
}, },
RG: function(r, g, b) { // setStrokeRGBColor setStrokeRGBColor: function(r, g, b) {
this.printdentln(""+ r +" "+ g +" "+ b +" RG"); this.printdentln(""+ r +" "+ g +" "+ b +" RG");
}, },
rg: function(r, g, b) { // setFillRGBColor setFillRGBColor: function(r, g, b) {
this.printdentln(""+ r +" "+ g +" "+ b +" rg"); this.printdentln(""+ r +" "+ g +" "+ b +" rg");
}, },
@ -1008,75 +1050,75 @@ var CanvasGraphics = (function() {
}, },
// Graphics state // Graphics state
w: function(width) { // setLineWidth setLineWidth: function(width) {
this.ctx.lineWidth = width; this.ctx.lineWidth = width;
}, },
d: function(dashArray, dashPhase) { // setDash setDash: function(dashArray, dashPhase) {
// TODO // TODO
}, },
q: function() { // save save: function() {
this.ctx.save(); this.ctx.save();
this.stateStack.push(this.current); this.stateStack.push(this.current);
this.current = new CanvasExtraState(); this.current = new CanvasExtraState();
}, },
Q: function() { // restore restore: function() {
this.current = this.stateStack.pop(); this.current = this.stateStack.pop();
this.ctx.restore(); this.ctx.restore();
}, },
cm: function(a, b, c, d, e, f) { // transform transform: function(a, b, c, d, e, f) {
this.ctx.transform(a, b, c, d, e, f); this.ctx.transform(a, b, c, d, e, f);
}, },
// Path // Path
m: function(x, y) { // moveTo moveTo: function(x, y) {
this.ctx.moveTo(x, y); this.ctx.moveTo(x, y);
}, },
l: function(x, y) { // lineTo lineTo: function(x, y) {
this.ctx.lineTo(x, y); this.ctx.lineTo(x, y);
}, },
c: function(x1, y1, x2, y2, x3, y3) { // curveTo curveTo: function(x1, y1, x2, y2, x3, y3) {
this.ctx.bezierCurveTo(x1, y1, x2, y2, x3, y3); this.ctx.bezierCurveTo(x1, y1, x2, y2, x3, y3);
}, },
h: function() { // closePath closePath: function() {
this.ctx.closePath(); this.ctx.closePath();
}, },
re: function(x, y, width, height) { // rectangle rectangle: function(x, y, width, height) {
this.ctx.rect(x, y, width, height); this.ctx.rect(x, y, width, height);
}, },
S: function() { // stroke stroke: function() {
this.ctx.stroke(); this.ctx.stroke();
this.$consumePath(); this.consumePath();
}, },
f: function() { // fill fill: function() {
this.ctx.fill(); this.ctx.fill();
this.$consumePath(); this.consumePath();
}, },
B: function() { // fillStroke fillStroke: function() {
this.ctx.fill(); this.ctx.fill();
this.ctx.stroke(); this.ctx.stroke();
this.$consumePath(); this.consumePath();
}, },
b: function() { // closeFillStroke closeFillStroke: function() {
return this.B(); // fillStroke return this.fillStroke();
}, },
// Clipping // Clipping
// Text // Text
BT: function() { // beginText beginText: function() {
// TODO // TODO
}, },
ET: function() { // endText endText: function() {
// TODO // TODO
}, },
Tf: function(font, size) { // setFont setFont: function(font, size) {
this.ctx.font = size +'px '+ font.BaseFont; this.ctx.font = size +'px '+ font.BaseFont;
}, },
Td: function (x, y) { // moveText moveText: function (x, y) {
this.current.lineX = x; this.current.lineX = x;
this.current.lineY = y; this.current.lineY = y;
}, },
Tj: function(text) { // showText showText: function(text) {
this.ctx.save(); this.ctx.save();
this.ctx.translate(0, 2 * this.current.lineY); this.ctx.translate(0, 2 * this.current.lineY);
this.ctx.scale(1, -1); this.ctx.scale(1, -1);
@ -1089,22 +1131,22 @@ var CanvasGraphics = (function() {
// Type3 fonts // Type3 fonts
// Color // Color
g: function(gray) { // setFillGray setFillGray: function(gray) {
this.rg(gray, gray, gray); // setFillRGBColor this.setFillRGBColor(gray, gray, gray);
}, },
RG: function(r, g, b) { // setStrokeRGBColor setStrokeRGBColor: function(r, g, b) {
this.ctx.strokeStyle = this.$makeCssRgb(r, g, b); this.ctx.strokeStyle = this.makeCssRgb(r, g, b);
}, },
rg: function(r, g, b) { // setFillRGBColor setFillRGBColor: function(r, g, b) {
this.ctx.fillStyle = this.$makeCssRgb(r, g, b); this.ctx.fillStyle = this.makeCssRgb(r, g, b);
}, },
// Helper functions that are not allowed to be called directly. // Helper functions
$consumePath: function() { consumePath: function() {
this.ctx.beginPath(); this.ctx.beginPath();
}, },
$makeCssRgb: function(r, g, b) { makeCssRgb: function(r, g, b) {
var ri = (255 * r) | 0, gi = (255 * g) | 0, bi = (255 * b) | 0; var ri = (255 * r) | 0, gi = (255 * g) | 0, bi = (255 * b) | 0;
return "rgb("+ ri +","+ gi +","+ bi +")"; return "rgb("+ ri +","+ gi +","+ bi +")";
}, },