From 76cb96f1cd7cfdd32e3cd190f8b7a8719679cac5 Mon Sep 17 00:00:00 2001
From: Andreas Gal <andreas.gal@gmail.com>
Date: Thu, 9 Jun 2011 18:06:01 -0700
Subject: [PATCH 1/2] add ?file= parameter to test.html

---
 test.html | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/test.html b/test.html
index 09ccf62d2..f78f22ce2 100644
--- a/test.html
+++ b/test.html
@@ -52,7 +52,8 @@ function load() {
     pageDisplay = document.getElementById("pageNumber");
     infoDisplay = document.getElementById("info");
     pageNum = parseInt(queryParams().page) || 1;
-    open("compressed.tracemonkey-pldi-09.pdf");
+    fileName = queryParams().file || "compressed.tracemonkey-pldi-09.pdf";
+    open(fileName);
 }
 
 function open(url) {

From 78d0b3caf1d996192cfd8acd354799fe7863a910 Mon Sep 17 00:00:00 2001
From: Chris Jones <jones.chris.g@gmail.com>
Date: Thu, 9 Jun 2011 18:19:17 -0700
Subject: [PATCH 2/2] implement TL and T*

---
 pdf.js    | 9 +++++++++
 test.html | 3 ++-
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/pdf.js b/pdf.js
index 8f0b09e35..f7e553699 100644
--- a/pdf.js
+++ b/pdf.js
@@ -1547,6 +1547,7 @@ var CanvasExtraState = (function() {
         this.alphaIsShape = false;
         this.fontSize = 0.0;
         this.textMatrix = IDENTITY_MATRIX;
+        this.leading = 0.0;
         // Current point (in user coordinates)
         this.x = 0.0;
         this.y = 0.0;
@@ -1600,9 +1601,11 @@ var CanvasGraphics = (function() {
             // Text
             BT: this.beginText,
             ET: this.endText,
+            TL: this.setLeading,
             Tf: this.setFont,
             Td: this.moveText,
             Tm: this.setTextMatrix,
+            "T*": this.nextLine,
             Tj: this.showText,
             TJ: this.showSpacedText,
 
@@ -1774,6 +1777,9 @@ var CanvasGraphics = (function() {
         },
         endText: function() {
         },
+        setLeading: function(leading) {
+            this.current.leading = leading;
+        },
         setFont: function(fontRef, size) {
             var fontRes = this.res.get("Font");
             if (!fontRes)
@@ -1795,6 +1801,9 @@ var CanvasGraphics = (function() {
             this.current.x = this.current.lineX = 0;
             this.current.y = this.current.lineY = 0;
         },
+        nextLine: function() {
+            this.moveText(0, this.current.leading);
+        },
         showText: function(text) {
             this.ctx.save();
             this.ctx.translate(0, 2 * this.current.y);
diff --git a/test.html b/test.html
index 09ccf62d2..8cb8cb8ee 100644
--- a/test.html
+++ b/test.html
@@ -52,7 +52,8 @@ function load() {
     pageDisplay = document.getElementById("pageNumber");
     infoDisplay = document.getElementById("info");
     pageNum = parseInt(queryParams().page) || 1;
-    open("compressed.tracemonkey-pldi-09.pdf");
+//    open("compressed.tracemonkey-pldi-09.pdf");
+    open("compressed.canvas.pdf");
 }
 
 function open(url) {