Sakurai/pdf.js
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This commit is contained in:
Artur Adib 2011-11-28 09:25:25 -05:00
parent dc33b24fae
commit a1853185b1
2 changed files with 10 additions and 2 deletions
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9
src/canvas.js
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@ -103,6 +103,7 @@ var CanvasGraphics = (function canvasGraphics() {
this.ctx.transform(0, -1, -1, 0, cw, ch); this.ctx.transform(0, -1, -1, 0, cw, ch);
break; break;
} }
// Scale so that canvas units are the same as PDF user space units
this.ctx.scale(cw / mediaBox.width, ch / mediaBox.height); this.ctx.scale(cw / mediaBox.width, ch / mediaBox.height);
this.textDivs = []; this.textDivs = [];
this.textLayerQueue = []; this.textLayerQueue = [];
@ -491,14 +492,18 @@ var CanvasGraphics = (function canvasGraphics() {
pushTextDivs: function canvasGraphicsPushTextDivs(text) { pushTextDivs: function canvasGraphicsPushTextDivs(text) {
var div = document.createElement('div'); var div = document.createElement('div');
var fontSize = this.current.fontSize; var fontSize = this.current.fontSize;
var fontHeight = text.geom.vScale * fontSize;
// vScale and hScale already contain the scaling to pixel units
// as mozCurrentTransform reflects ctx.scale() changes
// (see beginDrawing())
var fontHeight = fontSize * text.geom.vScale;
div.dataset.canvasWidth = text.canvasWidth * text.geom.hScale;
div.style.fontSize = fontHeight + 'px'; div.style.fontSize = fontHeight + 'px';
div.style.fontFamily = this.current.font.loadedName || 'sans-serif'; div.style.fontFamily = this.current.font.loadedName || 'sans-serif';
div.style.left = text.geom.x + 'px'; div.style.left = text.geom.x + 'px';
div.style.top = (text.geom.y - fontHeight) + 'px'; div.style.top = (text.geom.y - fontHeight) + 'px';
div.innerHTML = text.str; div.innerHTML = text.str;
div.dataset.canvasWidth = text.canvasWidth * text.geom.hScale;
div.dataset.textLength = text.length; div.dataset.textLength = text.length;
this.textDivs.push(div); this.textDivs.push(div);
}, },

3
src/metrics.js
View File

@ -3,6 +3,9 @@
'use strict'; 'use strict';
// The Metrics object contains glyph widths (in glyph space units).
// As per PDF spec, for most fonts (Type 3 being an exception) a glyph
// space unit corresponds to 1/1000th of text space unit.
var Metrics = { var Metrics = {
'Courier': 600, 'Courier': 600,
'Courier-Bold': 600, 'Courier-Bold': 600,