1 files changed, 53 insertions, 1 deletions

diff --git a/objects.js b/objects.js
index 3cd3ca5..e395369 100644
--- a/objects.js
+++ b/objects.js
@@ -125,7 +125,7 @@ PrototypeHatBlockMorph*/
 
 // Global stuff ////////////////////////////////////////////////////////
 
-modules.objects = '2014-July-11';
+modules.objects = '2014-July-17';
 
 var SpriteMorph;
 var StageMorph;
@@ -415,6 +415,12 @@ SpriteMorph.prototype.initBlocks = function () {
             spec: 'go back %n layers',
             defaults: [1]
         },
+        doScreenshot: {
+            type: 'command',
+            category: 'looks',
+            spec: 'save %imgsource as costume named %s',
+            defaults: [['pen trails'], localize('screenshot')]
+        },
 
         // Looks - Debugging primitives for development mode
         reportCostumes: {
@@ -1711,6 +1717,8 @@ SpriteMorph.prototype.blockTemplates = function (category) {
             blocks.push('-');
             blocks.push(block('log'));
             blocks.push(block('alert'));
+            blocks.push('-');
+            blocks.push(block('doScreenshot'));
         }
 
     /////////////////////////////////
@@ -4076,6 +4084,42 @@ SpriteMorph.prototype.reactToDropOf = function (morph, hand) {
     morph.slideBackTo(hand.grabOrigin);
 };
 
+// SpriteMorph screenshots
+
+SpriteMorph.prototype.newCostumeName = function (name) {
+
+    function stemOf(aName) {
+        var ix = aName.indexOf('(');
+        if (ix < 0) {return aName; }
+        return aName.substring(0, ix);
+    }
+
+    var stem = stemOf(name),
+        similar = this.costumes.asArray().filter(function (eachCostume) {
+            return stemOf(eachCostume.name) === stem;
+        }).length;
+
+    return stem + (similar ? '(' + (similar + 1) + ')' : '');
+};
+
+SpriteMorph.prototype.doScreenshot = function (imgSource, data) {
+    var canvas,
+        stage = this.parentThatIsA(StageMorph),
+        costume;
+    data = this.newCostumeName(data);
+    if (imgSource[0] === undefined) {
+        return;
+    }
+    if (imgSource[0] === "pen trails") {
+        canvas = stage.trailsCanvas;
+        costume = new Costume(canvas, data).copy(); // prevent mutation
+    } else if (imgSource[0] === "stage image") {
+        canvas = stage.fullImageClassic();
+        costume = new Costume(canvas, data);
+    }
+    this.addCostume(costume);
+};
+
 // SpriteHighlightMorph /////////////////////////////////////////////////
 
 // SpriteHighlightMorph inherits from Morph:
@@ -4771,6 +4815,8 @@ StageMorph.prototype.blockTemplates = function (category) {
             blocks.push('-');
             blocks.push(block('log'));
             blocks.push(block('alert'));
+            blocks.push('-');
+            blocks.push(block('doScreenshot'));
         }
 
     /////////////////////////////////
@@ -5244,6 +5290,12 @@ StageMorph.prototype.deleteVariable = SpriteMorph.prototype.deleteVariable;
 
 // StageMorph block rendering
 
+StageMorph.prototype.doScreenshot
+    = SpriteMorph.prototype.doScreenshot;
+
+StageMorph.prototype.newCostumeName
+    = SpriteMorph.prototype.newCostumeName;
+
 StageMorph.prototype.blockForSelector
     = SpriteMorph.prototype.blockForSelector;