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Merge pull request #93 from andreasgal/staging

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keep track of charSpacing wordSpacing textHScale
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sbarman 2011-06-26 10:25:42 -07:00
commit cc2a6310fb
1 changed files with 33 additions and 27 deletions
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pdf.js
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@ -2103,30 +2103,6 @@ var PDFDoc = (function() {
return constructor;
})();
var IDENTITY_MATRIX = [ 1, 0, 0, 1, 0, 0 ];
// <canvas> contexts store most of the state we need natively.
// However, PDF needs a bit more state, which we store here.
var CanvasExtraState = (function() {
function constructor() {
// Are soft masks and alpha values shapes or opacities?
this.alphaIsShape = false;
this.fontSize = 0.0;
this.textMatrix = IDENTITY_MATRIX;
this.leading = 0.0;
this.colorSpace = null;
// Current point (in user coordinates)
this.x = 0.0;
this.y = 0.0;
// Start of text line (in text coordinates)
this.lineX = 0.0;
this.lineY = 0.0;
}
constructor.prototype = {
};
return constructor;
})();
var Encodings = {
get ExpertEncoding() {
return shadow(this, "ExpertEncoding", [ ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
@ -2301,6 +2277,34 @@ var Encodings = {
}
};
var IDENTITY_MATRIX = [ 1, 0, 0, 1, 0, 0 ];
// <canvas> contexts store most of the state we need natively.
// However, PDF needs a bit more state, which we store here.
var CanvasExtraState = (function() {
function constructor() {
// Are soft masks and alpha values shapes or opacities?
this.alphaIsShape = false;
this.fontSize = 0;
this.textMatrix = IDENTITY_MATRIX;
this.leading = 0;
this.colorSpace = null;
// Current point (in user coordinates)
this.x = 0;
this.y = 0;
// Start of text line (in text coordinates)
this.lineX = 0;
this.lineY = 0;
// Character and word spacing
this.charSpace = 0;
this.wordSpace = 0;
this.textHScale = 100;
}
constructor.prototype = {
};
return constructor;
})();
function ScratchCanvas(width, height) {
var canvas = document.createElement("canvas");
canvas.width = width;
@ -2799,13 +2803,13 @@ var CanvasGraphics = (function() {
endText: function() {
},
setCharSpacing: function(spacing) {
TODO("character (glyph?) spacing");
this.ctx.charSpacing = spacing;
},
setWordSpacing: function(spacing) {
TODO("word spacing");
this.ctx.wordSpacing = spacing;
},
setHScale: function(scale) {
TODO("horizontal text scale");
this.ctx.textHScale = (scale % 100) * 0.01;
},
setLeading: function(leading) {
this.current.leading = leading;
@ -2868,6 +2872,8 @@ var CanvasGraphics = (function() {
this.moveText(0, this.current.leading);
},
showText: function(text) {
// TODO: apply charSpacing, wordSpacing, textHScale
this.ctx.save();
this.ctx.transform.apply(this.ctx, this.current.textMatrix);
this.ctx.scale(1, -1);