diff --git a/demo/src/demo/Demo.yaml b/demo/src/demo/Demo.yaml
index 9cb02e0..7821278 100644
--- a/demo/src/demo/Demo.yaml
+++ b/demo/src/demo/Demo.yaml
@@ -8,8 +8,8 @@ views:
     - id: tabs
       $type: haxework.gui.HGroupView
       layout.margin: 5
-      layout.hAlign: LEFT
-      geometry.size.percent.width: 100
+      layout.hAlign: left
+      geometry.size.width: 100%
       geometry.padding.left: 5
       views:
           - id: list_form
diff --git a/demo/src/demo/form/ListForm.yaml b/demo/src/demo/form/ListForm.yaml
index 7b0dca0..a101be1 100644
--- a/demo/src/demo/form/ListForm.yaml
+++ b/demo/src/demo/form/ListForm.yaml
@@ -8,5 +8,5 @@ views:
       scroll:
           $type: haxework.gui.list.VScrollBarView
           skin: $r:skin:scroll
-          geometry.size.percent.height: 100
-          geometry.size.fixed.width: 10
+          geometry.size.height: 100%
+          geometry.size.width: 10
diff --git a/demo/src/demo/form/TailForm.yaml b/demo/src/demo/form/TailForm.yaml
index a5dbdb2..d7816af 100644
--- a/demo/src/demo/form/TailForm.yaml
+++ b/demo/src/demo/form/TailForm.yaml
@@ -5,12 +5,12 @@ views:
       scroll:
           $type: haxework.gui.list.VScrollBarView
           skin: $r:skin:scroll
-          geometry.size.percent.height: 100
-          geometry.size.fixed.width: 10
+          geometry.size.height: 100%
+          geometry.size.width: 10
       view:
           id: group
           $type: haxework.gui.GroupView
-          geometry.size.percent.width: 100
+          geometry.size.width: 100%
           layout.margin: 5
           layout:
               $type: haxework.gui.layout.TailLayout
diff --git a/src/main/haxework/gui/ImageView.hx b/src/main/haxework/gui/ImageView.hx
index 88515ea..c2aef53 100755
--- a/src/main/haxework/gui/ImageView.hx
+++ b/src/main/haxework/gui/ImageView.hx
@@ -21,8 +21,10 @@ class ImageView extends SpriteView {
         if (image != value) {
             image = value;
             skin = [new BitmapSkin(image, FillType.DEFAULT)];
-            toUpdate();
-            toRedraw();
+            //geometry.size.content.width = value.width;
+            //geometry.size.content.height = value.height;
+            //toUpdate();
+            //toRedraw();
         }
         return image;
     }
diff --git a/src/main/haxework/gui/ScrollView.hx b/src/main/haxework/gui/ScrollView.hx
index a902197..55fc7a0 100644
--- a/src/main/haxework/gui/ScrollView.hx
+++ b/src/main/haxework/gui/ScrollView.hx
@@ -1,5 +1,6 @@
 package haxework.gui;
 
+import haxework.gui.core.Geometry.Position;
 import flash.display.DisplayObject;
 import flash.display.Sprite;
 import flash.events.MouseEvent;
@@ -44,7 +45,7 @@ class ScrollView extends HGroupView {
             if (scroll.ratio == ratio) return;
             scroll.ratio = ratio;
             scroll.visible = ratio < 1;
-            scroll.geometry.skipLayout = ratio >= 1;
+            scroll.geometry.position = ratio < 1 ? LAYOUT : ABSOLUTE;
         });
         scroll.onScroll.connect(function(position) this.position = position);
         return scroll;
diff --git a/src/main/haxework/gui/SpriteView.hx b/src/main/haxework/gui/SpriteView.hx
index e24064d..bf47b37 100755
--- a/src/main/haxework/gui/SpriteView.hx
+++ b/src/main/haxework/gui/SpriteView.hx
@@ -11,15 +11,11 @@ class SpriteView extends View<Sprite> {
   override public function redraw():Void {
       this.content.graphics.clear();
       super.redraw();
+      #if dev_layout
+      var graphics = content.graphics;
+      graphics.lineStyle(1, 0x00ff00);
+      graphics.drawRect(0, 0, width, height);
+      graphics.lineStyle();
+      #end
   }
-
-  #if dev_layout
-  override public function update():Void {
-      super.update();
-      var g:Graphics = content.graphics;
-      g.lineStyle(1, 0x00ff00);
-      g.drawRect(0, 0, width, height);
-      g.lineStyle();
-  }
-  #end
 }
diff --git a/src/main/haxework/gui/TextView.hx b/src/main/haxework/gui/TextView.hx
index 797c1f1..8303a86 100755
--- a/src/main/haxework/gui/TextView.hx
+++ b/src/main/haxework/gui/TextView.hx
@@ -1,11 +1,11 @@
 package haxework.gui;
 
-import haxework.gui.core.VAlign;
-import haxework.gui.core.HAlign;
 import flash.text.TextField;
 import flash.text.TextFieldAutoSize;
 import flash.text.TextFormat;
 import flash.text.TextFormatAlign;
+import haxework.gui.core.HAlign;
+import haxework.gui.core.VAlign;
 import haxework.text.BitmapTextField;
 import haxework.text.TextUtil;
 
@@ -172,15 +172,15 @@ class TextView extends SpriteView implements ITextView {
         textField.height = geometry.size.content.height;
 
         textField.x = switch (layout.hAlign) {
-            case HAlign.LEFT | HAlign.NONE: geometry.padding.left;
-            case HAlign.CENTER: (width - textField.width) / 2 + geometry.padding.left - geometry.padding.right;
-            case HAlign.RIGHT: width - textField.width - geometry.padding.right;
+            case LEFT | NONE: geometry.padding.left;
+            case CENTER: (width - textField.width) / 2 + geometry.padding.left - geometry.padding.right;
+            case RIGHT: width - textField.width - geometry.padding.right;
             default: 0;
         }
         textField.y = switch (layout.vAlign) {
-            case VAlign.TOP | VAlign.NONE: geometry.padding.top;
-            case VAlign.MIDDLE: (height - geometry.size.content.height) / 2 + geometry.padding.top - geometry.padding.bottom;
-            case VAlign.BOTTOM: height - geometry.size.content.height - geometry.padding.bottom;
+            case TOP | NONE: geometry.padding.top;
+            case MIDDLE: (height - geometry.size.content.height) / 2 + geometry.padding.top - geometry.padding.bottom;
+            case BOTTOM: height - geometry.size.content.height - geometry.padding.bottom;
             default: 0;
         }
     }
diff --git a/src/main/haxework/gui/View.hx b/src/main/haxework/gui/View.hx
index 0cefc11..e2e8ece 100755
--- a/src/main/haxework/gui/View.hx
+++ b/src/main/haxework/gui/View.hx
@@ -1,16 +1,15 @@
 package haxework.gui;
 
+import haxework.gui.skin.ISkin.ISizeSkin;
 import flash.display.DisplayObject;
 import flash.display.InteractiveObject;
-import flash.display.Stage;
-import flash.events.Event;
 import haxework.gui.core.Geometry;
 import haxework.gui.skin.ISkin.SkinSet;
 
 class View<C:DisplayObject> implements IView<C> {
 
     private static var counter:Int = 0;
-    public static var updater(default, null):Updater = new Updater();
+    public static var updater(default, null):ViewUpdater = new ViewUpdater();
 
     public var id(default, default):String;
 
@@ -61,6 +60,13 @@ class View<C:DisplayObject> implements IView<C> {
 
     public function redraw():Void {
         for (skin in this.skin) {
+            if (Std.is(skin, ISizeSkin)) {
+                var sizeSkin:ISizeSkin = cast skin;
+                if (sizeSkin.width != geometry.size.content.width || sizeSkin.height != geometry.size.content.width) {
+                    geometry.size.content = [sizeSkin.width, sizeSkin.height];
+                    toUpdateParent();
+                }
+            }
             skin.draw(this);
         }
     }
@@ -131,46 +137,3 @@ class View<C:DisplayObject> implements IView<C> {
         return mouseEnabled;
     }
 }
-
-
-class Updater {
-
-    public var stage(null, set):Stage;
-    private var updateViews:Array<IView<Dynamic>>;
-    private var redrawViews:Array<IView<Dynamic>>;
-
-    public function new() {
-        updateViews = [];
-        redrawViews = [];
-    }
-
-    private function set_stage(value:Stage):Stage {
-        value.addEventListener(Event.ENTER_FRAME, update);
-        value.addEventListener(Event.ENTER_FRAME, redraw);
-        return value;
-    }
-
-    public function toUpdate(view:IView<Dynamic>):Void {
-        if (updateViews.indexOf(view) == -1) updateViews.push(view);
-    }
-
-    public function toRedraw(view:IView<Dynamic>):Void {
-        if (redrawViews.indexOf(view) == -1) redrawViews.push(view);
-    }
-
-    public function update(?_):Void {
-        while (updateViews.length > 0) {
-            var v = null;
-            v = updateViews.shift();
-            v.update();
-        }
-    }
-
-    public function redraw(?_):Void {
-        while (redrawViews.length > 0) {
-            var v = null;
-            v = redrawViews.shift();
-            v.redraw();
-        }
-    }
-}
diff --git a/src/main/haxework/gui/ViewUpdater.hx b/src/main/haxework/gui/ViewUpdater.hx
new file mode 100644
index 0000000..4a8d44c
--- /dev/null
+++ b/src/main/haxework/gui/ViewUpdater.hx
@@ -0,0 +1,53 @@
+package haxework.gui;
+
+import flash.events.Event;
+import flash.display.Stage;
+
+class ViewUpdater {
+    public var stage(null, set):Stage;
+    private var updateViews:Array<IView<Dynamic>>;
+    private var redrawViews:Array<IView<Dynamic>>;
+
+    public function new() {
+        updateViews = [];
+        redrawViews = [];
+    }
+
+    private function set_stage(value:Stage):Stage {
+        value.addEventListener(Event.ENTER_FRAME, onEnterFrame);
+        return value;
+    }
+
+    public function toUpdate(view:IView<Dynamic>):Void {
+        if (updateViews.indexOf(view) == -1) updateViews.push(view);
+    }
+
+    public function toRedraw(view:IView<Dynamic>):Void {
+        if (redrawViews.indexOf(view) == -1) redrawViews.push(view);
+    }
+
+    private function onEnterFrame(_):Void {
+        update();
+        redraw();
+        if (updateViews.length > 0) {
+            update();
+            redraw();
+        }
+    }
+
+    public function update():Void {
+        while (updateViews.length > 0) {
+            var v = null;
+            v = updateViews.shift();
+            v.update();
+        }
+    }
+
+    public function redraw():Void {
+        while (redrawViews.length > 0) {
+            var v = null;
+            v = redrawViews.shift();
+            v.redraw();
+        }
+    }
+}
diff --git a/src/main/haxework/gui/core/Box.hx b/src/main/haxework/gui/core/Box.hx
new file mode 100644
index 0000000..3731b6e
--- /dev/null
+++ b/src/main/haxework/gui/core/Box.hx
@@ -0,0 +1,68 @@
+package haxework.gui.core;
+
+abstract Box(Array<Float>) {
+    public var left(get, set):Float;
+    public var right(get, set):Float;
+    public var top(get, set):Float;
+    public var bottom(get, set):Float;
+    public var vertical(get, never):Float;
+    public var horizontal(get, never):Float;
+
+    inline public function new(value:Array<Float>) {
+        this = switch(value) {
+            case []: [0, 0, 0, 0];
+            case [a]: [a, a, a, a];
+            case [a, b]: [a, a, b, b];
+            case [a, b, c, d]: [a, b, c, b];
+            case x: x;
+        }
+    }
+
+    inline private function get_left():Float {
+        return this[0];
+    }
+
+    inline private function set_left(value:Float):Float {
+        return this[0] = value;
+    }
+
+    inline private function get_right():Float {
+        return this[1];
+    }
+
+    inline private function set_right(value:Float):Float {
+        return this[1] = value;
+    }
+
+    inline private function get_top():Float {
+        return this[2];
+    }
+
+    inline private function set_top(value:Float):Float {
+        return this[2] = value;
+    }
+
+    inline private function get_bottom():Float {
+        return this[3];
+    }
+
+    inline private function set_bottom(value:Float):Float {
+        return this[3] = value;
+    }
+
+    inline private function get_vertical():Float {
+        return top + bottom;
+    }
+
+    inline private function get_horizontal():Float {
+        return left + right;
+    }
+
+    @:from static public inline function fromArray(value:Array<Float>):Box {
+        return new Box(value);
+    }
+
+    @:from static public inline function fromFloat(value:Float):Box {
+        return new Box([value]);
+    }
+}
diff --git a/src/main/haxework/gui/core/Direction.hx b/src/main/haxework/gui/core/Direction.hx
deleted file mode 100755
index a7c7722..0000000
--- a/src/main/haxework/gui/core/Direction.hx
+++ /dev/null
@@ -1,6 +0,0 @@
-package haxework.gui.core;
-
-enum Direction {
-  HORIZONTAL;
-  VERTICAL;
-}
\ No newline at end of file
diff --git a/src/main/haxework/gui/core/Geometry.hx b/src/main/haxework/gui/core/Geometry.hx
index 27252d9..57b85ef 100644
--- a/src/main/haxework/gui/core/Geometry.hx
+++ b/src/main/haxework/gui/core/Geometry.hx
@@ -1,59 +1,20 @@
 package haxework.gui.core;
 
-abstract Size(Array<Float>) {
-    public var width(get, set):Float;
-    public var height(get, set):Float;
-
-    inline public function new(value:Array<Float>) {
-        this = switch(value) {
-            case []: [-1, -1];
-            case [a]: [a, a];
-            case [a, b]: [a, b];
-            case x: x;
-        }
-    }
-
-    inline private function get_width():Float {
-        return this[0];
-    }
-
-    inline private function set_width(value:Float):Float {
-        return this[0] = value;
-    }
-
-    inline private function get_height():Float {
-        return this[1];
-    }
-
-    inline private function set_height(value:Float):Float {
-        return this[1] = value;
-    }
-
-    @:from static public inline function fromArray(value:Array<Float>):Size {
-        return new Size(value);
-    }
-
-    @:from static public inline function fromFloat(value:Float):Size {
-        return new Size([value]);
-    }
-}
-
 enum SizeValue {
     FIXED(value:Float);
     PERCENT(value:Float);
 }
 
 class SizeSet {
-    public var min(default, default):Size;
-    public var max(default, default):Size;
     public var content(default, default):Size;
     public var fixed(default, default):Size;
     public var percent(default, default):Size;
     public var stretch(null, set):Bool;
 
+    public var width(null, set):Dynamic;
+    public var height(null, set):Dynamic;
+
     public function new() {
-        this.min = [];
-        this.max = [];
         this.content = [];
         this.fixed = [];
         this.percent = [];
@@ -63,73 +24,27 @@ class SizeSet {
         this.percent = value ? [100] : [];
         return value;
     }
-}
 
-abstract Box(Array<Float>) {
-    public var left(get, set):Float;
-    public var right(get, set):Float;
-    public var top(get, set):Float;
-    public var bottom(get, set):Float;
-    public var vertical(get, never):Float;
-    public var horizontal(get, never):Float;
-
-    inline public function new(value:Array<Float>) {
-        this = switch(value) {
-            case []: [0, 0, 0, 0];
-            case [a]: [a, a, a, a];
-            case [a, b]: [a, a, b, b];
-            case [a, b, c, d]: [a, b, c, b];
-            case x: x;
+    inline private function set_width(value:Dynamic):Dynamic {
+        if (Std.is(value, Float)) {
+            return fixed.width = value;
+        } else {
+            return percent.width = Std.parseFloat(value);
         }
     }
 
-    inline private function get_left():Float {
-        return this[0];
+    inline private function set_height(value:Dynamic):Dynamic {
+        if (Std.is(value, Float)) {
+            return fixed.height = value;
+        } else {
+            return percent.height = Std.parseFloat(value);
+        }
     }
+}
 
-    inline private function set_left(value:Float):Float {
-        return this[0] = value;
-    }
-
-    inline private function get_right():Float {
-        return this[1];
-    }
-
-    inline private function set_right(value:Float):Float {
-        return this[1] = value;
-    }
-
-    inline private function get_top():Float {
-        return this[2];
-    }
-
-    inline private function set_top(value:Float):Float {
-        return this[2] = value;
-    }
-
-    inline private function get_bottom():Float {
-        return this[3];
-    }
-
-    inline private function set_bottom(value:Float):Float {
-        return this[3] = value;
-    }
-
-    inline private function get_vertical():Float {
-        return top + bottom;
-    }
-
-    inline private function get_horizontal():Float {
-        return left + right;
-    }
-
-    @:from static public inline function fromArray(value:Array<Float>):Box {
-        return new Box(value);
-    }
-
-    @:from static public inline function fromFloat(value:Float):Box {
-        return new Box([value]);
-    }
+@:enum abstract Position(String) from String to String {
+    var LAYOUT = "layout";
+    var ABSOLUTE = "absolute";
 }
 
 class Geometry {
@@ -138,7 +53,7 @@ class Geometry {
     public var size(default, default):SizeSet;
     public var hAlign(default, default):HAlign;
     public var vAlign(default, default):VAlign;
-    public var skipLayout(default, default):Bool;
+    public var position(default, default):Position;
 
     public var width(get, never):SizeValue;
     public var height(get, never):SizeValue;
@@ -149,7 +64,7 @@ class Geometry {
         this.size = new SizeSet();
         this.hAlign = HAlign.NONE;
         this.vAlign = VAlign.NONE;
-        this.skipLayout = false;
+        this.position = Position.LAYOUT;
     }
 
     public function get_width():SizeValue {
diff --git a/src/main/haxework/gui/core/HAlign.hx b/src/main/haxework/gui/core/HAlign.hx
index 7d5b1dd..e063b16 100755
--- a/src/main/haxework/gui/core/HAlign.hx
+++ b/src/main/haxework/gui/core/HAlign.hx
@@ -1,8 +1,8 @@
 package haxework.gui.core;
 
 @:enum abstract HAlign(String) from String to String {
-    var NONE = "NONE";
-    var LEFT = "LEFT";
-    var CENTER = "CENTER";
-    var RIGHT = "RIGHT";
+    var NONE = "none";
+    var LEFT = "left";
+    var CENTER = "center";
+    var RIGHT = "right";
 }
diff --git a/src/main/haxework/gui/core/Size.hx b/src/main/haxework/gui/core/Size.hx
new file mode 100644
index 0000000..9402281
--- /dev/null
+++ b/src/main/haxework/gui/core/Size.hx
@@ -0,0 +1,39 @@
+package haxework.gui.core;
+
+abstract Size(Array<Float>) {
+    public var width(get, set):Float;
+    public var height(get, set):Float;
+
+    inline public function new(value:Array<Float>) {
+        this = switch(value) {
+            case []: [-1, -1];
+            case [a]: [a, a];
+            case [a, b]: [a, b];
+            case x: x;
+        }
+    }
+
+    inline private function get_width():Float {
+        return this[0];
+    }
+
+    inline private function set_width(value:Float):Float {
+        return this[0] = value;
+    }
+
+    inline private function get_height():Float {
+        return this[1];
+    }
+
+    inline private function set_height(value:Float):Float {
+        return this[1] = value;
+    }
+
+    @:from static public inline function fromArray(value:Array<Float>):Size {
+        return new Size(value);
+    }
+
+    @:from static public inline function fromFloat(value:Float):Size {
+        return new Size([value]);
+    }
+}
diff --git a/src/main/haxework/gui/core/VAlign.hx b/src/main/haxework/gui/core/VAlign.hx
index f1ae5e4..142990e 100755
--- a/src/main/haxework/gui/core/VAlign.hx
+++ b/src/main/haxework/gui/core/VAlign.hx
@@ -1,8 +1,8 @@
 package haxework.gui.core;
 
 @:enum abstract VAlign(String) from String to String {
-    var NONE = "NONE";
-    var TOP = "TOP";
-    var MIDDLE = "MIDDLE";
-    var BOTTOM = "BOTTOM";
+    var NONE = "none";
+    var TOP = "top";
+    var MIDDLE = "middle";
+    var BOTTOM = "bottom";
 }
diff --git a/src/main/haxework/gui/layout/DefaultLayout.hx b/src/main/haxework/gui/layout/DefaultLayout.hx
index 5f937a6..58392cc 100755
--- a/src/main/haxework/gui/layout/DefaultLayout.hx
+++ b/src/main/haxework/gui/layout/DefaultLayout.hx
@@ -1,5 +1,6 @@
 package haxework.gui.layout;
 
+import haxework.gui.core.Geometry.Position;
 import haxework.gui.core.Geometry.SizeValue;
 import haxework.gui.core.VAlign;
 import haxework.gui.core.HAlign;
@@ -27,14 +28,15 @@ class DefaultLayout implements ILayout {
 
     private function filterViews(group:IGroupView, views:Array<IView<Dynamic>>):Array<IView<Dynamic>> {
         return Lambda.array(Lambda.filter(views, function(view:IView<Dynamic>):Bool {
-            return if (!view.geometry.skipLayout) {
-                true;
-            } else {
-                setViewWidth(group, view);
-                setViewHeight(group, view);
-                placeViewHorizontal(group, view);
-                placeViewVertical(group, view);
-                false;
+            return switch (view.geometry.position) {
+                case ABSOLUTE:
+                    setViewWidth(group, view);
+                    setViewHeight(group, view);
+                    placeViewHorizontal(group, view);
+                    placeViewVertical(group, view);
+                    false;
+                case LAYOUT:
+                    true;
             }
         }));
     }
diff --git a/src/main/haxework/gui/list/ListView.hx b/src/main/haxework/gui/list/ListView.hx
index d40dafe..09c3590 100755
--- a/src/main/haxework/gui/list/ListView.hx
+++ b/src/main/haxework/gui/list/ListView.hx
@@ -1,12 +1,13 @@
 package haxework.gui.list;
 
-import haxework.gui.skin.Skin;
-import haxework.signal.Signal;
+import flash.events.MouseEvent;
+import haxework.gui.core.Geometry.Position;
+import haxework.gui.core.HAlign;
 import haxework.gui.core.VAlign;
 import haxework.gui.layout.ILayout;
+import haxework.gui.skin.Skin;
+import haxework.signal.Signal;
 import haxework.utils.NumberUtil;
-import flash.events.MouseEvent;
-import haxework.gui.core.HAlign;
 
 class ListView<D> extends GroupView {
 
@@ -41,8 +42,8 @@ class ListView<D> extends GroupView {
     public function new(layout:ILayout, otherLayout:ILayout) {
         super(otherLayout);
         main = new GroupView(layout);
-        main.layout.hAlign = HAlign.CENTER;
-        main.layout.vAlign = VAlign.MIDDLE;
+        main.layout.hAlign = CENTER;
+        main.layout.vAlign = MIDDLE;
         main.geometry.size.stretch = true;
         addView(main);
         box = new GroupView(layout);
@@ -50,7 +51,7 @@ class ListView<D> extends GroupView {
         main.addView(box);
         mask = new SpriteView();
         mask.geometry.size.stretch = true;
-        mask.geometry.skipLayout = true;
+        mask.geometry.position = ABSOLUTE;
         mask.skin.push(Skin.color(0xffffff));
         box.content.mask = mask.content;
         box.addView(mask);
diff --git a/src/main/haxework/gui/skin/BitmapSkin.hx b/src/main/haxework/gui/skin/BitmapSkin.hx
index e81d0ce..f3b6115 100755
--- a/src/main/haxework/gui/skin/BitmapSkin.hx
+++ b/src/main/haxework/gui/skin/BitmapSkin.hx
@@ -2,10 +2,10 @@ package haxework.gui.skin;
 
 import flash.display.BitmapData;
 import flash.geom.Rectangle;
+import haxework.gui.skin.ISkin.ISizeSkin;
 import haxework.gui.utils.DrawUtil;
 
-class BitmapSkin implements ISkin<SpriteView> {
-
+class BitmapSkin implements ISkin<SpriteView> implements ISizeSkin {
     public var width(default, null):Float;
     public var height(default, null):Float;
 
@@ -33,7 +33,5 @@ class BitmapSkin implements ISkin<SpriteView> {
     public function draw(view:SpriteView):Void {
         if (image == null) return;
         DrawUtil.draw(view.content.graphics, image, new Rectangle(0, 0, view.width, view.height), fillType, color);
-        view.geometry.size.content.width = image.width;
-        view.geometry.size.content.height = image.height;
     }
 }
diff --git a/src/main/haxework/gui/skin/ButtonBitmapSkin.hx b/src/main/haxework/gui/skin/ButtonBitmapSkin.hx
index fc6fec4..69195fc 100755
--- a/src/main/haxework/gui/skin/ButtonBitmapSkin.hx
+++ b/src/main/haxework/gui/skin/ButtonBitmapSkin.hx
@@ -3,10 +3,11 @@ package haxework.gui.skin;
 import flash.display.BitmapData;
 import flash.geom.Rectangle;
 import haxework.gui.ButtonView.ButtonState;
+import haxework.gui.skin.ISkin.ISizeSkin;
 import haxework.gui.utils.BitmapUtil;
 import haxework.gui.utils.DrawUtil;
 
-class ButtonBitmapSkin implements ISkin<ButtonView> {
+class ButtonBitmapSkin implements ISkin<ButtonView> implements ISizeSkin {
 
     public var width(default, null):Float;
     public var height(default, null):Float;
@@ -62,8 +63,5 @@ class ButtonBitmapSkin implements ISkin<ButtonView> {
         if (images == null) return;
         var image:BitmapData = view.disabled ? disableImage == null ? disable : disableImage : images.get(view.state);
         DrawUtil.draw(view.content.graphics, image, new Rectangle(0, 0, view.width, view.height), fillType, color);
-        view.geometry.size.content.width = image.width;
-        view.geometry.size.content.height = image.height;
     }
-
 }
diff --git a/src/main/haxework/gui/skin/ISkin.hx b/src/main/haxework/gui/skin/ISkin.hx
index 72e0035..6bf25b0 100644
--- a/src/main/haxework/gui/skin/ISkin.hx
+++ b/src/main/haxework/gui/skin/ISkin.hx
@@ -4,4 +4,9 @@ interface ISkin<V:IView<Dynamic>> {
     public function draw(view: V): Void;
 }
 
+interface ISizeSkin {
+    public var width(default, null):Float;
+    public var height(default, null):Float;
+}
+
 typedef SkinSet = Array<ISkin<Dynamic>>;
diff --git a/src/main/haxework/gui/skin/SizeSkin.hx b/src/main/haxework/gui/skin/SizeSkin.hx
new file mode 100644
index 0000000..e2be774
--- /dev/null
+++ b/src/main/haxework/gui/skin/SizeSkin.hx
@@ -0,0 +1,18 @@
+package haxework.gui.skin;
+
+class SizeSkin implements ISkin<IView<Dynamic>> {
+    public var width(default, null):Float;
+    public var height(default, null):Float;
+
+    public function new(width:Float, height:Float) {
+        this.width = width;
+        this.height = height;
+    }
+
+    public function draw(view:IView<Dynamic>):Void {
+        if (view.geometry.size.fixed.width != width || view.geometry.size.fixed.height != height) {
+            view.geometry.size.fixed = [width, height];
+            view.toUpdate();
+        }
+    }
+}
diff --git a/src/main/haxework/gui/skin/Skin.hx b/src/main/haxework/gui/skin/Skin.hx
index 62fff3b..b30d8b2 100644
--- a/src/main/haxework/gui/skin/Skin.hx
+++ b/src/main/haxework/gui/skin/Skin.hx
@@ -4,6 +4,10 @@ import flash.display.BitmapData;
 
 class Skin {
 
+    public static function size(width:Float, height:Float): ISkin<Dynamic> {
+        return new SizeSkin(width, height);
+    }
+
     public static function bitmap(image:BitmapData): ISkin<SpriteView> {
         return new BitmapSkin(image);
     }