From 82f496a11f0ad51aff9aa1d74da10cd960452425 Mon Sep 17 00:00:00 2001
From: nightwing <amirjanyan@gmail.com>
Date: Thu, 14 Mar 2013 18:07:46 +0400
Subject: [PATCH] add wrap: printMargin

---
 lib/ace/edit_session.js     | 20 ++++++++++++--------
 lib/ace/editor.js           |  8 ++++----
 lib/ace/virtual_renderer.js | 31 ++++++++++++++++++++++++++++++-
 3 files changed, 46 insertions(+), 13 deletions(-)

diff --git a/lib/ace/edit_session.js b/lib/ace/edit_session.js
index d2d02a62..697d0508 100644
--- a/lib/ace/edit_session.js
+++ b/lib/ace/edit_session.js
@@ -1570,9 +1570,12 @@ var EditSession = function(text, mode) {
     *
     * @private
     **/
-    this.adjustWrapLimit = function(desiredLimit) {
-        var wrapLimit = this.$constrainWrapLimit(desiredLimit);
-        if (wrapLimit != this.$wrapLimit && wrapLimit > 0) {
+    this.adjustWrapLimit = function(desiredLimit, $printMargin) {
+        var limits = this.$wrapLimitRange
+        if (limits.max < 0)
+            limits = {min: $printMargin, max: $printMargin};
+        var wrapLimit = this.$constrainWrapLimit(desiredLimit, limits.min, limits.max);
+        if (wrapLimit != this.$wrapLimit && wrapLimit > 1) {
             this.$wrapLimit = wrapLimit;
             this.$modified = true;
             if (this.$useWrapMode) {
@@ -1585,17 +1588,14 @@ var EditSession = function(text, mode) {
         return false;
     };
 
-    this.$constrainWrapLimit = function(wrapLimit) {
-        var min = this.$wrapLimitRange.min;
+    this.$constrainWrapLimit = function(wrapLimit, min, max) {
         if (min)
             wrapLimit = Math.max(min, wrapLimit);
 
-        var max = this.$wrapLimitRange.max;
         if (max)
             wrapLimit = Math.min(max, wrapLimit);
 
-        // What would a limit of 0 even mean?
-        return Math.max(1, wrapLimit);
+        return  wrapLimit;
     };
 
     /**
@@ -2391,9 +2391,13 @@ config.defineOptions(EditSession.prototype, "session", {
                 value = false;
             else if (value == "free")
                 value = true;
+            else if (value == "printMargin")
+                value = -1;
             else if (typeof value == "string")
                 value = parseInt(value, 10) || false;
 
+            if (this.$wrap == value)
+                return;
             if (!value) {
                 this.setUseWrapMode(false);
             } else {
diff --git a/lib/ace/editor.js b/lib/ace/editor.js
index 3810363a..d793bf79 100644
--- a/lib/ace/editor.js
+++ b/lib/ace/editor.js
@@ -344,10 +344,7 @@ var Editor = function(renderer, session) {
      *
      **/
     this.setFontSize = function(size) {
-        if (typeof size == "number")
-            size = size + "px";
-        this.container.style.fontSize = size;
-        this.renderer.updateFontSize();
+        this.setOption("fontSize", size);
     };
 
     this.$highlightBrackets = function() {
@@ -2225,10 +2222,13 @@ config.defineOptions(Editor.prototype, "editor", {
     showInvisibles: "renderer",
     showPrintMargin: "renderer",
     printMarginColumn: "renderer",
+    printMargin: "renderer",
     fadeFoldWidgets: "renderer",
     showFoldWidgets: "renderer",
     showGutter: "renderer",
     displayIndentGuides: "renderer",
+    fontSize: "renderer",
+    fontFamily: "renderer",
 
     scrollSpeed: "$mouseHandler",
     dragDelay: "$mouseHandler",
diff --git a/lib/ace/virtual_renderer.js b/lib/ace/virtual_renderer.js
index 8bc071d2..a8e64542 100644
--- a/lib/ace/virtual_renderer.js
+++ b/lib/ace/virtual_renderer.js
@@ -354,7 +354,7 @@ var VirtualRenderer = function(container, theme) {
     this.adjustWrapLimit = function() {
         var availableWidth = this.$size.scrollerWidth - this.$padding * 2;
         var limit = Math.floor(availableWidth / this.characterWidth);
-        return this.session.adjustWrapLimit(limit);
+        return this.session.adjustWrapLimit(limit, this.$showPrintMargin && this.$printMarginColumn);
     };
 
     /**
@@ -493,6 +493,9 @@ var VirtualRenderer = function(container, theme) {
         var style = this.$printMarginEl.style;
         style.left = ((this.characterWidth * this.$printMarginColumn) + this.$padding) + "px";
         style.visibility = this.$showPrintMargin ? "visible" : "hidden";
+        
+        if (this.session && this.session.$wrap == -1)
+            this.adjustWrapLimit();
     };
 
     /**
@@ -1353,6 +1356,17 @@ config.defineOptions(VirtualRenderer.prototype, "renderer", {
         set: function() { this.$updatePrintMargin(); },
         initialValue: 80
     },
+    printMargin: {
+        set: function(val) {
+            if (typeof val == "number")
+                this.$printMarginColumn = val;
+            this.$showPrintMargin = !!val;
+            this.$updatePrintMargin();
+        },
+        get: function() {
+            return this.$showPrintMargin && this.$printMarginColumn; 
+        }
+    },
     showGutter: {
         set: function(show){
             this.$gutter.style.display = show ? "block" : "none";
@@ -1401,6 +1415,21 @@ config.defineOptions(VirtualRenderer.prototype, "renderer", {
                 this.$loop.schedule(this.CHANGE_SCROLL);
         },
         initialValue: false
+    },
+    fontSize:  {
+        set: function(size) {
+            if (typeof size == "number")
+                size = size + "px";
+            this.container.style.fontSize = size;
+            this.updateFontSize();
+        },
+        initialValue: 12
+    },
+    fontFamily: {
+        set: function(name) {
+            this.container.style.fontFamily = name;
+            this.updateFontSize();
+        }
     }
 });