[piccolo2d-dev] [piccolo2d] r1051 committed - Making PText nodes not display if they are less than 3 pixels tall

[piccolo2d]

Revision: 1051
Author: allain.lalonde
Date: Thu Aug 26 12:25:46 2010
Log: Making PText nodes not display if they are less than 3 pixels tall
http://code.google.com/p/piccolo2d/source/detail?r=1051

Modified:
 /piccolo2d.js/trunk/piccolo2d.js

=======================================
--- /piccolo2d.js/trunk/piccolo2d.js    Thu Aug 26 11:38:14 2010
+++ /piccolo2d.js/trunk/piccolo2d.js    Thu Aug 26 12:25:46 2010
@@ -166,6 +166,14 @@
             values[5] = -(m[0] * m[5] - m[1] * m[4]) / det;

             return new PTransform(values);
+        },
+
+        getScale: function() {
+            var p = new PPoint(0,1);
+            var tp = this.transform(p);
+            tp.x -= this.values[4];
+            tp.y -= this.values[5];
+            return Math.sqrt(tp.x * tp.x + tp.y * tp.y);
         }
     });

@@ -476,11 +484,7 @@
         },

         getScale: function() {
-          var p = new PPoint(0,1);
-          var tp = this.transform.transform(p);
-          tp.x -= this.transform.values[4];
-          tp.y -= this.transform.values[5];
-          return Math.sqrt(tp.x * tp.x + tp.y * tp.y);
+          return this.transform.getScale();
         }
     });

@@ -512,7 +516,11 @@
             }
         },

-        paint: function (ctx) {
+        paint: function (ctx) {
+            if (this.globalFullBounds.height / ctx.displayScale  < 3) {
+                return;
+            }
+
             if (this.fillStyle) {
                 ctx.fillStyle = this.fillStyle;
             } else {
@@ -594,6 +602,7 @@

             this.viewTransform.applyTo(ctx);
             var viewInverse = this.viewTransform.getInverse();
+            ctx.displayScale = viewInverse.getScale();
             ctx.clipBounds = viewInverse.transform(this.bounds);

             for (var i = 0; i < this.layers.length; i += 1) {
@@ -659,7 +668,6 @@

             this.invalidatePaint();
         }
-
     });

     PCanvas = Class.extend({

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