From cfa488a502064ab9a73ef12df5d930ce70b9e297 Mon Sep 17 00:00:00 2001
From: Jeff Schiller <codedread@gmail.com>
Date: Fri, 26 Jun 2009 14:31:03 +0000
Subject: [PATCH] Make changing resolution undo/redo-able

git-svn-id: http://svg-edit.googlecode.com/svn/trunk@202 eee81c28-f429-11dd-99c0-75d572ba1ddd
---
 editor/svg-editor.js | 18 ++++++++++++++----
 editor/svgcanvas.js  |  6 ++++--
 2 files changed, 18 insertions(+), 6 deletions(-)

diff --git a/editor/svg-editor.js b/editor/svg-editor.js
index fcff9d80..cd835d68 100644
--- a/editor/svg-editor.js
+++ b/editor/svg-editor.js
@@ -37,6 +37,12 @@ function svg_edit_setup() {
 
 	// called when any element has changed	
 	var elementChanged = function(window,elem) {
+		// if the element changed was the svg, then it must be a resolution change
+		if (elem && elem.tagName == "svg") {
+			changeResolution(parseInt(elem.getAttribute("width")), 
+							 parseInt(elem.getAttribute("height")));
+		}
+		
 		// we update the contextual panel with potentially new
 		// positional/sizing information (we DON'T want to update the
 		// toolbar here as that creates an infinite loop)
@@ -518,16 +524,20 @@ function svg_edit_setup() {
 		$('#tools_ellipse').show();
 	});
 
-	$('#resolution').change(function(){
-		var res = this.value.split('x');
-		var x = parseInt(res[0]), y = parseInt(res[1]);
-		svgCanvas.setResolution(x,y);
+	function changeResolution(x,y) {
+		$('#resolution').val(x+'x'+y);
 		$('#svgroot').css( { 'width': x, 'height': y } );
 		$('#svgcanvas').css( { 'width': x, 'height': y } );
 		$('div#palette_holder').css('width',  x);
 		$('#context_tools').css('width', x + 65);
 		$('#tools').css('height', y + 24);
 		$('#footer').css('width', x + 65);
+	}
+	
+	$('#resolution').change(function(){
+		var res = this.value.split('x');
+		var x = parseInt(res[0]), y = parseInt(res[1]);
+		svgCanvas.setResolution(x,y);
 	});
 
 	return svgCanvas;
diff --git a/editor/svgcanvas.js b/editor/svgcanvas.js
index 8dedc9c5..8dde8448 100644
--- a/editor/svgcanvas.js
+++ b/editor/svgcanvas.js
@@ -1,5 +1,3 @@
-var svgcanvas = null;
-
 if(!window.console) {
   window.console = new function() {
     this.log = function(str) {};
@@ -905,8 +903,12 @@ function SvgCanvas(c)
 	}
 
 	this.setResolution = function(x, y) {
+		var w = svgroot.getAttribute("width"),
+			h = svgroot.getAttribute("height");
 		svgroot.setAttribute("width", x);
 		svgroot.setAttribute("height", y);
+		addCommandToHistory(new ChangeElementCommand(svgroot, {"width":w,"height":h}, "resolution"));
+		call("changed", svgroot);
 	}
 
 	this.getMode = function() {