eBookReaderSwitch/mupdf/docs/examples/trace-device.js

103 lines
2.7 KiB
JavaScript

var Q = JSON.stringify
var pathPrinter = {
moveTo: function (x,y) { print("moveTo", x, y) },
lineTo: function (x,y) { print("lineTo", x, y) },
curveTo: function (x1,y1,x2,y2,x3,y3) { print("curveTo", x1, y1, x2, y2, x3, y3) },
closePath: function () { print("closePath") },
}
var textPrinter = {
showGlyph: function (f,m,g,u,v,b) { print("glyph",f,m,g,u,v,b) },
}
var traceDevice = {
fillPath: function (path, evenOdd, ctm, colorSpace, color, alpha) {
print("fillPath", evenOdd, ctm, colorSpace, color, alpha)
path.walk(pathPrinter)
},
clipPath: function (path, evenOdd, ctm) {
print("clipPath", evenOdd, ctm)
path.walk(pathPrinter)
},
strokePath: function (path, stroke, ctm, colorSpace, color, alpha) {
print("strokePath", Q(stroke), ctm, colorSpace, color, alpha)
path.walk(pathPrinter)
},
clipStrokePath: function (path, stroke, ctm) {
print("clipStrokePath", Q(stroke), ctm)
path.walk(pathPrinter)
},
fillText: function (text, ctm, colorSpace, color, alpha) {
print("fillText", ctm, colorSpace, color, alpha)
text.walk(textPrinter)
},
clipText: function (text, ctm) {
print("clipText", ctm)
text.walk(textPrinter)
},
strokeText: function (text, stroke, ctm, colorSpace, color, alpha) {
print("strokeText", Q(stroke), ctm, colorSpace, color, alpha)
text.walk(textPrinter)
},
clipStrokeText: function (text, stroke, ctm) {
print("clipStrokeText", Q(stroke), ctm)
text.walk(textPrinter)
},
ignoreText: function (text, ctm) {
print("ignoreText", ctm)
text.walk(textPrinter)
},
fillShade: function (shade, ctm, alpha) {
print("fillShade", shade, ctm, alpha)
},
fillImage: function (image, ctm, alpha) {
print("fillImage", image, ctm, alpha)
},
fillImageMask: function (image, ctm, colorSpace, color, alpha) {
print("fillImageMask", image, ctm, colorSpace, color, alpha)
},
clipImageMask: function (image, ctm) {
print("clipImageMask", image, ctm)
},
beginMask: function (area, luminosity, colorspace, color) {
print("beginMask", area, luminosity, colorspace, color)
},
endMask: function () {
print("endMask")
},
popClip: function () {
print("popClip")
},
beginGroup: function (area, isolated, knockout, blendmode, alpha) {
print("beginGroup", area, isolated, knockout, blendmode, alpha)
},
endGroup: function () {
print("endGroup")
},
beginTile: function (area, view, xstep, ystep, ctm, id) {
print("beginTile", area, view, xstep, ystep, ctm, id)
return 0
},
endTile: function () {
print("endTile")
},
close: function () {
print("close")
},
}
if (scriptArgs.length != 2)
print("usage: mutool run trace-device.js document.pdf pageNumber")
else {
var doc = new Document(scriptArgs[0]);
var page = doc.loadPage(parseInt(scriptArgs[1])-1);
page.run(traceDevice, Identity);
}