Flex Examples » borderSkin http://blog.flexexamples.com Just a bunch of Adobe Flex Examples Wed, 26 Jan 2011 18:09:51 +0000 en hourly 1 Setting a gradient background fill on a Halo TextArea control in Flex 4 http://blog.flexexamples.com/2009/10/24/setting-a-gradient-background-fill-on-a-halo-textarea-control-in-flex-4/ http://blog.flexexamples.com/2009/10/24/setting-a-gradient-background-fill-on-a-halo-textarea-control-in-flex-4/#comments Sat, 24 Oct 2009 18:19:51 +0000 Peter deHaan http://blog.flexexamples.com/?p=2074 In a previous example, “Setting the background fill color on a Halo TextArea control in Flex 4″, we saw how you could set the background fill color on the Halo TextArea control (with default Spark skin) in Flex 4 by setting the contentBackgroundColor style.

The following example shows how you can create a linear [...]]]> In a previous example, “Setting the background fill color on a Halo TextArea control in Flex 4″, we saw how you could set the background fill color on the Halo TextArea control (with default Spark skin) in Flex 4 by setting the contentBackgroundColor style.

The following example shows how you can create a linear gradient background on a Halo/MX TextArea control in Flex 4 by creating a custom border skin with a LinearGradient fill and setting the borderSkin style.

Full code after the jump.

The following example(s) require Flash Player 10 and the Adobe Flex 4 SDK. To download the Adobe Flash Builder 4 trial, see http://www.adobe.com/products/flex/. To download the latest nightly build of the Flex 4 SDK, see http://opensource.adobe.com/wiki/display/flexsdk/Download+Flex+4.
For more information on getting started with Flex 4 and Flash Builder 4, see the official Adobe Flex Team blog.

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/10/24/setting-a-gradient-background-fill-on-a-halo-textarea-control-in-flex-4/ -->
<s:Application name="Halo_TextArea_SparkSkin_background_test"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        xmlns:mx="library://ns.adobe.com/flex/halo">
 
    <mx:TextArea id="ta"
            text="{Capabilities.serverString}"
            borderSkin="skins.CustomBorderSkin"
            verticalScrollPolicy="on"
            width="300" height="200"
            horizontalCenter="0" verticalCenter="0" />
 
</s:Application>

And the custom border skin, skins/CustomBorderSkin.mxml, is as follows:

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/10/24/setting-a-gradient-background-fill-on-a-halo-textarea-control-in-flex-4/ -->
<local:SparkSkinForHalo name="CustomBorderSkin"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        xmlns:local="mx.skins.spark.*"
        implements="mx.core.IRectangularBorder">
 
    <fx:Script>
        <![CDATA[
            import mx.core.EdgeMetrics;
            import mx.core.IUIComponent;
            import mx.graphics.RectangularDropShadow;
 
            /* Define the skin elements that should not be colorized. */
            static private const exclusions:Array = ["background"];
            override public function get colorizeExclusions():Array {return exclusions;}
 
            /* Define the content fill items that should be colored by the "contentBackgroundColor" style. */
            static private const contentFill:Array = [];
            override public function get contentItems():Array {return contentFill};
 
            /* Define the border item. */
            static private const borderItem:Array = ["borderStroke"];
            override protected function get borderItems():Array {return borderItem;}
            override protected function get defaultBorderItemColor():uint {return getStyle("borderColor");}
            override protected function get defaultBorderAlpha():Number {return getStyle("borderAlpha");}
 
            static private const metrics:EdgeMetrics = new EdgeMetrics(1, 1, 1, 1);
 
            [Bindable]
            public var cornerRadius:Number = 0;
 
            private var dropShadow:RectangularDropShadow;
 
            public function get borderMetrics():EdgeMetrics {
                if (getStyle("borderVisible") == false ||
                    getStyle("borderStyle") == "none") {
                    return EdgeMetrics.EMPTY
                }
                return metrics;
            }
 
            public function get backgroundImageBounds():Rectangle {
                return null;
            }
 
            public function set backgroundImageBounds(value:Rectangle):void {
            }
 
            public function get hasBackgroundImage():Boolean {
                return false;
            }
 
            public function layoutBackgroundImage():void {
            }
 
            override protected function initializationComplete():void {
                useBaseColor = true;
                super.initializationComplete();
            }
 
            override protected function updateDisplayList(unscaledWidth:Number, unscaledHeight:Number):void {
                // Force a redraw to clear any existing shadow, and to force a redraw of the
                // border/background.
                redrawRequested = true;
 
                if (getStyle("borderVisible") == false || getStyle("borderStyle") == "none") {
                    border.visible = false;
                    background.left = background.top = background.right = background.bottom = 0;
                } else {
                    border.visible = true;
                    background.left = background.top = background.right = background.bottom = 1;
                }
 
                border.radiusX = cornerRadius;
                background.radiusX = cornerRadius;
 
                super.updateDisplayList(unscaledWidth, unscaledHeight);
 
                if (parent && parent is IUIComponent && !IUIComponent(parent).enabled) {
                    alpha = 0.5;
                } else {
                    alpha = 1;
                }
 
                // Draw drop shadow, if needed
                if (getStyle("dropShadowVisible") == false || width == 0 || height == 0) {
                    return;
                }
 
                // Create a RectangularDropShadow object, set its properties,
                // and draw the shadow
                if (!dropShadow) {
                    dropShadow = new RectangularDropShadow();
                }
 
                dropShadow.distance = 5;
                dropShadow.angle = 90;
                dropShadow.color = 0;
                dropShadow.alpha = 0.8;
                dropShadow.blurX = 20;
                dropShadow.blurY = 20;
 
                // Clear out any pending line style
                graphics.lineStyle();
                dropShadow.drawShadow(graphics, 0, 0, width, height);
            }
 
            private function getDropShadowAngle(distance:Number, direction:String):Number
            {
                if (direction == "left") {
                    return distance >= 0 ? 135 : 225;
                } else if (direction == "right") {
                    return distance >= 0 ? 45 : 315;
                } else { // direction == "center"
                    return distance >= 0 ? 90 : 270;
                }
            }
        ]]>
    </fx:Script>
 
    <!-- border -->
    <s:Rect left="0" right="0" top="0" bottom="0" radiusX="0" id="border">
        <s:stroke>
            <s:SolidColorStroke id="borderStroke" />
        </s:stroke>
    </s:Rect>
 
    <!-- fill -->
    <s:Rect id="background" left="1" right="1" top="1" bottom="1" radiusX="0">
        <s:fill>
            <s:LinearGradient rotation="90">
                <s:GradientEntry color="red" />
                <s:GradientEntry color="purple" />
            </s:LinearGradient>
        </s:fill>
    </s:Rect>
 
</local:SparkSkinForHalo>

The default Spark skins for the MX/Halo controls/containers can be found in the Flex SDK at:
%Flex SDK%\frameworks\projects\sparkskins\src\mx\skins\spark\*.

View source is enabled in the following example.

This entry is based on a beta version of the Flex 4 SDK and therefore is very likely to change as development of the Flex SDK continues. The API can (and will) change causing examples to possibly not compile in newer versions of the Flex 4 SDK.

 
]]> http://blog.flexexamples.com/2009/10/24/setting-a-gradient-background-fill-on-a-halo-textarea-control-in-flex-4/feed/ 0 Removing the border from the Halo Tree control in Flex 4 http://blog.flexexamples.com/2009/08/28/removing-the-border-from-the-halo-tree-control-in-flex-4/ http://blog.flexexamples.com/2009/08/28/removing-the-border-from-the-halo-tree-control-in-flex-4/#comments Fri, 28 Aug 2009 13:56:12 +0000 Peter deHaan http://blog.flexexamples.com/?p=1759 The following example shows how you can remove or modify the border on the Halo Tree control (with default Spark skin) in Flex 4 by setting the borderSkin style.

Full code after the jump.

<?xml version="1.0"?> <!-- http://blog.flexexamples.com/2009/08/28/removing-the-border-from-the-halo-tree-control-in-flex-4/ --> <s:Application name="Halo_Tree_borderSkin_test" xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark" xmlns:mx="library://ns.adobe.com/flex/halo">   <mx:Tree id="tree1" labelField="@label" showRoot="true" borderSkin="{null}" width="160" horizontalCenter="0" verticalCenter="0"> <mx:XMLListCollection [...]]]> The following example shows how you can remove or modify the border on the Halo Tree control (with default Spark skin) in Flex 4 by setting the borderSkin style.

Full code after the jump.

The following example(s) require Flash Player 10 and the Adobe Flex 4 SDK. To download the Adobe Flash Builder 4 trial, see http://www.adobe.com/products/flex/. To download the latest nightly build of the Flex 4 SDK, see http://opensource.adobe.com/wiki/display/flexsdk/Download+Flex+4.
For more information on getting started with Flex 4 and Flash Builder 4, see the official Adobe Flex Team blog.

<?xml version="1.0"?>
<!-- http://blog.flexexamples.com/2009/08/28/removing-the-border-from-the-halo-tree-control-in-flex-4/ -->
<s:Application name="Halo_Tree_borderSkin_test"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        xmlns:mx="library://ns.adobe.com/flex/halo">
 
    <mx:Tree id="tree1"
            labelField="@label"
            showRoot="true"
            borderSkin="{null}"
            width="160"
            horizontalCenter="0" verticalCenter="0">
        <mx:XMLListCollection id="MailBox">
            <fx:XMLList>
                <folder label="Mail">
                    <folder label="INBOX"/>
                    <folder label="Personal Folder">
                        <Pfolder label="Business" />
                        <Pfolder label="Demo" />
                        <Pfolder label="Personal" isBranch="true" />
                        <Pfolder label="Saved Mail" />
                    </folder>
                    <folder label="Sent" />
                    <folder label="Trash" />
                </folder>
            </fx:XMLList>
        </mx:XMLListCollection>
    </mx:Tree>
 
</s:Application>

View source is enabled in the following example.


Or, you can modify the Halo Tree border skin, as seen in the following example:

<?xml version="1.0"?>
<!-- http://blog.flexexamples.com/2009/08/28/removing-the-border-from-the-halo-tree-control-in-flex-4/ -->
<s:Application name="Halo_Tree_borderSkin_test"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        xmlns:mx="library://ns.adobe.com/flex/halo"
        backgroundColor="red">
 
    <mx:Tree id="tree1"
            labelField="@label"
            showRoot="true"
            borderSkin="skins.CustomBorderSkin"
            width="160"
            horizontalCenter="0" verticalCenter="0">
        <mx:XMLListCollection id="MailBox">
            <fx:XMLList>
                <folder label="Mail">
                    <folder label="INBOX"/>
                    <folder label="Personal Folder">
                        <Pfolder label="Business" />
                        <Pfolder label="Demo" />
                        <Pfolder label="Personal" isBranch="true" />
                        <Pfolder label="Saved Mail" />
                    </folder>
                    <folder label="Sent" />
                    <folder label="Trash" />
                </folder>
            </fx:XMLList>
        </mx:XMLListCollection>
    </mx:Tree>
 
</s:Application>

And the custom border skin, skins/CustomBorderSkin.mxml, is as follows:

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/08/28/removing-the-border-from-the-halo-tree-control-in-flex-4/ -->
<local:SparkSkinForHalo name="CustomBorderSkin"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        xmlns:local="mx.skins.spark.*"
        implements="mx.core.IRectangularBorder">
 
    <fx:Script>
        <![CDATA[
        import mx.core.EdgeMetrics;
        import mx.core.IUIComponent;
        import mx.graphics.RectangularDropShadow;
 
        /* Define the skin elements that should not be colorized. */
        static private const exclusions:Array = ["background"];
        override public function get colorizeExclusions():Array {
            return exclusions;
        }
 
        /* Define the content fill items that should be colored by the "contentBackgroundColor" style. */
        static private const contentFill:Array = ["bgFill"];
        override public function get contentItems():Array {
            return contentFill;
        }
 
        /* Define the border item. */
        static private const borderItem:Array = [];
        override protected function get borderItems():Array {
            return borderItem;
        }
        override protected function get defaultBorderItemColor():uint {
            return 0x696969;
        }
 
        static private const metrics:EdgeMetrics = new EdgeMetrics(1, 1, 1, 1);
 
        private var dropShadow:RectangularDropShadow;
 
        public function get borderMetrics():EdgeMetrics {
            return metrics;
        }
 
        public function get backgroundImageBounds():Rectangle {
            return null;
        }
 
        public function set backgroundImageBounds(value:Rectangle):void {
        }
 
        public function get hasBackgroundImage():Boolean {
            return false;
        }
 
        public function layoutBackgroundImage():void {
        }
 
        override protected function updateDisplayList(unscaledWidth:Number, unscaledHeight:Number):void {
            graphics.clear();
 
            super.updateDisplayList(unscaledWidth, unscaledHeight);
 
            if (parent && parent is IUIComponent && !IUIComponent(parent).enabled)
                alpha = 0.5;
            else
                alpha = 1;
 
            // Draw drop shadow, if needed
            if (getStyle("dropShadowEnabled") == false ||
                getStyle("dropShadowEnabled") == "false" ||
                width == 0 ||
                height == 0) {
                return;
            }
 
            // Create a RectangularDropShadow object, set its properties,
            // and draw the shadow
            if (!dropShadow)
                dropShadow = new RectangularDropShadow();
 
            dropShadow.distance = 5;
            dropShadow.angle = 90;
            dropShadow.color = 0;
            dropShadow.alpha = 0.8;
            dropShadow.blurX = 20;
            dropShadow.blurY = 20;
 
            dropShadow.drawShadow(graphics, x, y, width, height);
        }
 
        private function getDropShadowAngle(distance:Number, direction:String):Number {
            if (direction == "left") {
                return distance >= 0 ? 135 : 225;
            } else if (direction == "right") {
                return distance >= 0 ? 45 : 315;
            } else { // direction == "center"
                return distance >= 0 ? 90 : 270;
            }
        }
        ]]>
    </fx:Script>
 
    <s:Group left="0" right="0" top="0" bottom="0">
        <!-- fill -->
        <s:Rect id="background" left="1" right="1" top="1" bottom="1">
            <s:fill>
                <s:SolidColor id="bgFill" color="0xFFFFFF" />
            </s:fill>
        </s:Rect>
    </s:Group>
 
</local:SparkSkinForHalo>

The default Spark skins for the MX/Halo controls/containers can be found in the Flex SDK at:
%Flex SDK%\frameworks\projects\sparkskins\src\mx\skins\spark\*.

You can also set the borderSkin style in an external .CSS file or <Style/> block, as seen in the following example:

<?xml version="1.0"?>
<!-- http://blog.flexexamples.com/2009/08/28/removing-the-border-from-the-halo-tree-control-in-flex-4/ -->
<s:Application name="Halo_Tree_borderSkin_test"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        xmlns:mx="library://ns.adobe.com/flex/halo">
 
    <fx:Style>
        @namespace s "library://ns.adobe.com/flex/spark";
        @namespace mx "library://ns.adobe.com/flex/halo";
 
        mx|Tree {
            /* borderSkin: ClassReference(null); */
            borderSkin: ClassReference("skins.CustomBorderSkin");
        }
    </fx:Style>
 
    <mx:Tree id="tree1"
            labelField="@label"
            showRoot="true"
            width="160"
            horizontalCenter="0" verticalCenter="0">
        <mx:XMLListCollection id="MailBox">
            <fx:XMLList>
                <folder label="Mail">
                    <folder label="INBOX"/>
                    <folder label="Personal Folder">
                        <Pfolder label="Business" />
                        <Pfolder label="Demo" />
                        <Pfolder label="Personal" isBranch="true" />
                        <Pfolder label="Saved Mail" />
                    </folder>
                    <folder label="Sent" />
                    <folder label="Trash" />
                </folder>
            </fx:XMLList>
        </mx:XMLListCollection>
    </mx:Tree>
 
</s:Application>

Or, you can set the borderSkin style using ActionScript, as seen in the following example:

<?xml version="1.0"?>
<!-- http://blog.flexexamples.com/2009/08/28/removing-the-border-from-the-halo-tree-control-in-flex-4/ -->
<s:Application name="Halo_Tree_borderSkin_test"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        xmlns:mx="library://ns.adobe.com/flex/halo">
 
    <fx:Script>
        <![CDATA[
            import skins.CustomBorderSkin;
 
            protected function btn_click(evt:MouseEvent):void {
                tree1.setStyle("borderSkin", CustomBorderSkin);
            }
        ]]>
    </fx:Script>
 
    <s:Button id="btn"
            label="Set Tree border skin"
            click="btn_click(event);"
            left="10" top="10" />
 
    <mx:Tree id="tree1"
            labelField="@label"
            showRoot="true"
            width="160"
            horizontalCenter="0" verticalCenter="0">
        <mx:XMLListCollection id="MailBox">
            <fx:XMLList>
                <folder label="Mail">
                    <folder label="INBOX"/>
                    <folder label="Personal Folder">
                        <Pfolder label="Business" />
                        <Pfolder label="Demo" />
                        <Pfolder label="Personal" isBranch="true" />
                        <Pfolder label="Saved Mail" />
                    </folder>
                    <folder label="Sent" />
                    <folder label="Trash" />
                </folder>
            </fx:XMLList>
        </mx:XMLListCollection>
    </mx:Tree>
 
</s:Application>

This entry is based on a beta version of the Flex 4 SDK and therefore is very likely to change as development of the Flex SDK continues. The API can (and will) change causing examples to possibly not compile in newer versions of the Flex 4 SDK.

 
]]> http://blog.flexexamples.com/2009/08/28/removing-the-border-from-the-halo-tree-control-in-flex-4/feed/ 3 Setting a control bar background image fill on a Halo Panel control in Flex 4 http://blog.flexexamples.com/2009/07/08/setting-a-control-bar-background-image-fill-on-a-halo-panel-control-in-flex-4/ http://blog.flexexamples.com/2009/07/08/setting-a-control-bar-background-image-fill-on-a-halo-panel-control-in-flex-4/#comments Thu, 09 Jul 2009 06:59:06 +0000 Peter deHaan http://blog.flexexamples.com/?p=1469 The following example shows how you can set the control bar background image fill on a Halo Panel control (with default Spark skin) in Flex 4 by setting the borderSkin style.

Full code after the jump.

<?xml version="1.0" encoding="utf-8"?> <!-- http://blog.flexexamples.com/2009/07/08/setting-a-control-bar-background-image-fill-on-a-halo-panel-control-in-flex-4/ --> <s:Application name="Halo_Panel_borderSkin_test" xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark" xmlns:mx="library://ns.adobe.com/flex/halo">   <mx:Panel id="panel" borderSkin="skins.CustomPanelBorderSkin" width="80%" height="80%" horizontalCenter="0" [...]]]> The following example shows how you can set the control bar background image fill on a Halo Panel control (with default Spark skin) in Flex 4 by setting the borderSkin style.

Full code after the jump.

The following example(s) require Flash Player 10 and the Adobe Flex 4 SDK. To download the Adobe Flash Builder 4 trial, see http://www.adobe.com/products/flex/. To download the latest nightly build of the Flex 4 SDK, see http://opensource.adobe.com/wiki/display/flexsdk/Download+Flex+4.
For more information on getting started with Flex 4 and Flash Builder 4, see the official Adobe Flex Team blog.

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/07/08/setting-a-control-bar-background-image-fill-on-a-halo-panel-control-in-flex-4/ -->
<s:Application name="Halo_Panel_borderSkin_test"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        xmlns:mx="library://ns.adobe.com/flex/halo">
 
    <mx:Panel id="panel"
            borderSkin="skins.CustomPanelBorderSkin"
            width="80%" height="80%"
            horizontalCenter="0" verticalCenter="0">
        <s:List id="list" labelField="fontName" width="100%" height="100%">
            <s:dataProvider>
                <s:ArrayList source="{Font.enumerateFonts(true)}" />
            </s:dataProvider>
        </s:List>
        <mx:ControlBar width="100%" height="60">
            <s:Group width="100%">
                <s:SimpleText id="lbl"
                        text="The quick brown fox jumps over the lazy dog"
                        fontFamily="{list.selectedItem.fontName}"
                        fontSize="32"
                        maxDisplayedLines="1"
                        width="100%" />
            </s:Group>
        </mx:ControlBar>
    </mx:Panel>
 
</s:Application>

And the custom skin class, skins/CustomPanelBorderSkin.mxml, is as follows:

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/07/08/setting-a-control-bar-background-image-fill-on-a-halo-panel-control-in-flex-4/ -->
<s:SparkSkin name="CustomPanelBorderSkin"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        implements="mx.core.IRectangularBorder">
 
    <fx:Script>
        <![CDATA[
            import mx.core.EdgeMetrics;
            import mx.core.IUIComponent;
 
            /* Define the skin elements that should not be colorized. 
               For panel, border and title backround are skinned, but the content area and title text are not. */
            static private const exclusions:Array = ["background"];
            override public function get colorizeExclusions():Array {
                return exclusions;
            }
 
            /* Define the content fill items that should be colored by the "contentBackgroundColor" style. */
            static private const contentFill:Array = ["bgFill"];
            override public function get contentItems():Array {
                return contentFill
            }
 
            private var _metrics:EdgeMetrics = new EdgeMetrics(1, 32, 1, 1);
            public function get borderMetrics():EdgeMetrics {
                var hasPanelParent:Boolean = isPanel(parent);
                var controlBar:IUIComponent = hasPanelParent ? Object(parent).mx_internal::_controlBar : null;
 
                if (controlBar && controlBar.includeInLayout) {
                    _metrics.bottom = controlBar.getExplicitOrMeasuredHeight() + 1;
                } else {
                    _metrics.bottom = 1;
                }
                return _metrics;
            }
 
            public function get backgroundImageBounds():Rectangle {
                return null;
            }
 
            public function set backgroundImageBounds(value:Rectangle):void {
            }
 
            public function get hasBackgroundImage():Boolean {
                return false;
            }
 
            public function layoutBackgroundImage():void {
            }
 
            override protected function updateDisplayList(unscaledWidth:Number, unscaledHeight:Number):void {
                var em:EdgeMetrics = borderMetrics;
                if (em.bottom > 1) {
                    cbbg.height = em.bottom - 1;
                    cbdiv.bottom = cbbg.height;
                    cbbg.visible = cbdiv.visible = true;
                } else {
                    cbbg.visible = cbdiv.visible = false;
                }
                super.updateDisplayList(unscaledWidth, unscaledHeight);
            }
 
            private static var panels:Object = {};
 
            private static function isPanel(parent:Object):Boolean {
                var s:String = getQualifiedClassName(parent);
                if (panels[s] == 1) {
                    return true;
                }
                if (panels[s] == 0) {
                    return false;
                }
                if (s == "mx.containers::Panel") {
                    panels[s] == 1;
                    return true;
                }
                var x:XML = describeType(parent);
                var xmllist:XMLList = x.extendsClass.(@type == "mx.containers::Panel");
                if (xmllist.length() == 0) {
                    panels[s] = 0;
                    return false;
                }
                panels[s] = 1;
                return true;
            }
        ]]>
    </fx:Script>
 
    <!-- drop shadow -->
    <s:Rect left="0" top="0" right="0" bottom="0">
        <s:filters>
            <s:DropShadowFilter blurX="20" blurY="20" alpha="0.32" distance="11" angle="90" knockout="true" />
        </s:filters>
        <s:fill>
            <s:SolidColor color="0" />
        </s:fill>
    </s:Rect>
 
    <!-- layer 1: border -->
    <s:Rect left="0" right="0" top="0" bottom="0">
        <s:stroke>
            <s:SolidColorStroke color="0" alpha="0.50" weight="1" />
        </s:stroke>
    </s:Rect>
 
    <!-- layer 2: background fill -->
    <s:Rect id="background" left="1" top="1" right="1" bottom="1">
        <s:fill>
            <s:SolidColor color="0xFFFFFF" id="bgFill" />
        </s:fill>
    </s:Rect>
 
    <!-- layer 3: title bar fill -->
    <s:Rect left="1" right="1" top="1" height="30">
       <s:fill>
            <s:LinearGradient rotation="90">
                <s:GradientEntry color="0xE2E2E2" />
                <s:GradientEntry color="0xD9D9D9" />
            </s:LinearGradient>
       </s:fill>
    </s:Rect>
 
    <!-- layer 4: title bar highlight -->
    <s:Rect left="1" right="1" top="1" height="30">
       <s:stroke>
            <s:LinearGradientStroke rotation="90" weight="1">
                <s:GradientEntry color="0xEAEAEA" />
                <s:GradientEntry color="0xD9D9D9" />
            </s:LinearGradientStroke>
       </s:stroke>
    </s:Rect>
    <s:Rect left="1" right="1" top="31" height="1">
        <s:fill>
            <s:SolidColor color="0xC0C0C0" />
        </s:fill>
    </s:Rect>
 
    <!-- layer 5: control bar background -->
    <s:Rect id="cbbg" left="1" right="1" bottom="1" height="20" alpha="0.6">
        <s:fill>
            <s:BitmapFill source="@Embed('assets/pattern_149.gif')" />
        </s:fill>
    </s:Rect>
 
    <!-- layer 6: control bar divider line -->
    <s:Rect id="cbdiv" left="1" right="1" bottom="20" height="1">
        <s:fill>
            <s:SolidColor color="0xCDCDCD" />
        </s:fill>
    </s:Rect>
 
</s:SparkSkin>

Or, you can set the borderSkin style globally using ActionScript, as seen in the following example:

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/07/08/setting-a-control-bar-background-image-fill-on-a-halo-panel-control-in-flex-4/ -->
<s:Application name="Halo_Panel_borderSkin_test"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        xmlns:mx="library://ns.adobe.com/flex/halo"
        initialize="init();">
 
    <fx:Script>
        <![CDATA[
            import skins.CustomPanelBorderSkin;
 
            private function init():void {
                var panelStyles:CSSStyleDeclaration = StyleManager.getStyleDeclaration("mx.containers.Panel");
                panelStyles.setStyle("borderSkin", CustomPanelBorderSkin);
            }
        ]]>
    </fx:Script>
 
    <mx:Panel id="panel"
            borderSkin="skins.CustomPanelBorderSkin"
            width="80%" height="80%"
            horizontalCenter="0" verticalCenter="0">
        <s:List id="list" labelField="fontName" width="100%" height="100%">
            <s:dataProvider>
                <s:ArrayList source="{Font.enumerateFonts(true)}" />
            </s:dataProvider>
        </s:List>
        <mx:ControlBar width="100%" height="60">
            <s:Group width="100%">
                <s:SimpleText id="lbl"
                        text="The quick brown fox jumps over the lazy dog"
                        fontFamily="{list.selectedItem.fontName}"
                        fontSize="32"
                        maxDisplayedLines="1"
                        width="100%" />
            </s:Group>
        </mx:ControlBar>
    </mx:Panel>
 
</s:Application>

This entry is based on a beta version of the Flex 4 SDK and therefore is very likely to change as development of the Flex SDK continues. The API can (and will) change causing examples to possibly not compile in newer versions of the Flex 4 SDK.

 
]]> http://blog.flexexamples.com/2009/07/08/setting-a-control-bar-background-image-fill-on-a-halo-panel-control-in-flex-4/feed/ 2 Setting a title background image fill on a Halo Alert control in Flex 4 http://blog.flexexamples.com/2009/07/07/setting-a-title-background-image-fill-on-a-halo-alert-control-in-flex-4/ http://blog.flexexamples.com/2009/07/07/setting-a-title-background-image-fill-on-a-halo-alert-control-in-flex-4/#comments Wed, 08 Jul 2009 06:59:34 +0000 Peter deHaan http://blog.flexexamples.com/?p=1466 In a previous example, “Setting a background image fill on a Halo Alert control in Flex 4″, we saw how you could can a repeating background image fill on a Halo Alert control (with default Spark skin) in Flex 4 by setting the borderSkin style.

The following example shows how you can set the [...]]]> In a previous example, “Setting a background image fill on a Halo Alert control in Flex 4″, we saw how you could can a repeating background image fill on a Halo Alert control (with default Spark skin) in Flex 4 by setting the borderSkin style.

The following example shows how you can set the title bar background image fill on a Halo Alert control (with default Spark skin) in Flex 4 by setting the borderSkin style.

Full code after the jump.

The following example(s) require Flash Player 10 and the Adobe Flex 4 SDK. To download the Adobe Flash Builder 4 trial, see http://www.adobe.com/products/flex/. To download the latest nightly build of the Flex 4 SDK, see http://opensource.adobe.com/wiki/display/flexsdk/Download+Flex+4.
For more information on getting started with Flex 4 and Flash Builder 4, see the official Adobe Flex Team blog.

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/07/07/setting-a-title-background-image-fill-on-a-halo-alert-control-in-flex-4/ -->
<s:Application name="Halo_Alert_borderSkin_test3"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        xmlns:mx="library://ns.adobe.com/flex/halo">
 
    <fx:Style>
        @namespace s "library://ns.adobe.com/flex/spark";
        @namespace mx "library://ns.adobe.com/flex/halo";
 
        mx|Alert {
            borderSkin: ClassReference("skins.CustomPanelBorderSkin");
        }
    </fx:Style>
 
    <fx:Script>
        <![CDATA[
            import mx.controls.Alert;
 
            protected function btn_clickHandler(evt:MouseEvent):void {
                var a:Alert = Alert.show("The quick brown fox jumps over the lazy dog", "Alert title");
                a.status = mx_internal::VERSION;
            }
        ]]>
    </fx:Script>
 
    <mx:ApplicationControlBar width="100%" cornerRadius="0">
        <s:Button id="btn"
                label="Launch Alert"
                click="btn_clickHandler(event);" />
    </mx:ApplicationControlBar>
 
</s:Application>

And the custom skin class, skins/CustomPanelBorderSkin.mxml, is as follows:

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/07/07/setting-a-title-background-image-fill-on-a-halo-alert-control-in-flex-4/ -->
<s:SparkSkin name="CustomPanelBorderSkin"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        implements="mx.core.IRectangularBorder">
 
    <fx:Script>
        <![CDATA[
            import mx.core.EdgeMetrics;
            import mx.core.IUIComponent;
 
            /* Define the skin elements that should not be colorized. 
               For panel, border and title backround are skinned, but the content area and title text are not. */
            static private const exclusions:Array = ["background"];
            override public function get colorizeExclusions():Array {
                return exclusions;
            }
 
            /* Define the content fill items that should be colored by the "contentBackgroundColor" style. */
            static private const contentFill:Array = ["bgFill"];
            override public function get contentItems():Array {
                return contentFill
            }
 
            private var _metrics:EdgeMetrics = new EdgeMetrics(1, 32, 1, 1);
            public function get borderMetrics():EdgeMetrics {
                var hasPanelParent:Boolean = isPanel(parent);
                var controlBar:IUIComponent = hasPanelParent ? Object(parent).mx_internal::_controlBar : null;
 
                if (controlBar && controlBar.includeInLayout) {
                    _metrics.bottom = controlBar.getExplicitOrMeasuredHeight() + 1;
                } else {
                    _metrics.bottom = 1;
                }
                return _metrics;
            }
 
            public function get backgroundImageBounds():Rectangle {
                return null;
            }
 
            public function set backgroundImageBounds(value:Rectangle):void {
            }
 
            public function get hasBackgroundImage():Boolean {
                return false;
            }
 
            public function layoutBackgroundImage():void {
            }
 
            override protected function updateDisplayList(unscaledWidth:Number, unscaledHeight:Number):void {
                var em:EdgeMetrics = borderMetrics;
                if (em.bottom > 1) {
                    cbbg.height = em.bottom - 1;
                    cbdiv.bottom = cbbg.height;
                    cbbg.visible = cbdiv.visible = true;
                } else {
                    cbbg.visible = cbdiv.visible = false;
                }
                super.updateDisplayList(unscaledWidth, unscaledHeight);
            }
 
            private static var panels:Object = {};
 
            private static function isPanel(parent:Object):Boolean {
                var s:String = getQualifiedClassName(parent);
                if (panels[s] == 1) {
                    return true;
                }
                if (panels[s] == 0) {
                    return false;
                }
                if (s == "mx.containers::Panel") {
                    panels[s] == 1;
                    return true;
                }
                var x:XML = describeType(parent);
                var xmllist:XMLList = x.extendsClass.(@type == "mx.containers::Panel");
                if (xmllist.length() == 0) {
                    panels[s] = 0;
                    return false;
                }
                panels[s] = 1;
                return true;
            }
        ]]>
    </fx:Script>
 
    <!-- drop shadow -->
    <s:Rect left="0" top="0" right="0" bottom="0">
        <s:filters>
            <s:DropShadowFilter blurX="20" blurY="20" alpha="0.32" distance="11" angle="90" knockout="true" />
        </s:filters>
        <s:fill>
            <s:SolidColor color="0" />
        </s:fill>
    </s:Rect>
 
    <!-- layer 1: border -->
    <s:Rect left="0" right="0" top="0" bottom="0">
        <s:stroke>
            <s:SolidColorStroke color="0" alpha="0.50" weight="1" />
        </s:stroke>
    </s:Rect>
 
    <!-- layer 2: background fill -->
    <s:Rect id="background" left="1" top="1" right="1" bottom="1">
        <s:fill>
            <s:SolidColor color="0xFFFFFF" id="bgFill" />
        </s:fill>
    </s:Rect>
 
    <!-- layer 3: title bar fill -->
    <s:Rect left="1" right="1" top="1" height="30" alpha="0.6">
       <s:fill>
            <s:BitmapFill source="@Embed('assets/pattern_149.gif')" />
       </s:fill>
    </s:Rect>
 
    <!-- layer 4: title bar highlight -->
    <s:Rect left="1" right="1" top="1" height="30">
       <s:stroke>
            <s:LinearGradientStroke rotation="90" weight="1">
                <s:GradientEntry color="0xEAEAEA" />
                <s:GradientEntry color="0xD9D9D9" />
            </s:LinearGradientStroke>
       </s:stroke>
    </s:Rect>
    <s:Rect left="1" right="1" top="31" height="1">
        <s:fill>
            <s:SolidColor color="0xC0C0C0" />
        </s:fill>
    </s:Rect>
 
    <!-- layer 5: control bar background -->
    <s:Rect id="cbbg" left="1" right="1" bottom="1" height="20">
        <s:fill>
            <s:SolidColor color="0xE8E8E8" />
        </s:fill>
    </s:Rect>
 
    <!-- layer 6: control bar divider line -->
    <s:Rect id="cbdiv" left="1" right="1" bottom="20" height="1">
        <s:fill>
            <s:SolidColor color="0xCDCDCD" />
        </s:fill>
    </s:Rect>
 
</s:SparkSkin>

Or, you can also set the borderSkin style globally ActionScript, as seen in the following example:

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/07/07/setting-a-title-background-image-fill-on-a-halo-alert-control-in-flex-4/ -->
<s:Application name="Halo_Alert_borderSkin3_test"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        xmlns:mx="library://ns.adobe.com/flex/halo"
        initialize="init();">
 
    <fx:Script>
        <![CDATA[
            import mx.controls.Alert;
            import skins.CustomPanelBorderSkin;
 
            private function init():void {
                var alertStyles:CSSStyleDeclaration = StyleManager.getStyleDeclaration("mx.controls.Alert");
                alertStyles.setStyle("borderSkin", CustomPanelBorderSkin);
            }
 
            protected function btn_clickHandler(evt:MouseEvent):void {
                var a:Alert = Alert.show("The quick brown fox jumps over the lazy dog", "Alert title");
                a.status = mx_internal::VERSION;
            }
        ]]>
    </fx:Script>
 
    <mx:ApplicationControlBar width="100%" cornerRadius="0">
        <s:Button id="btn"
                label="Launch Alert"
                click="btn_clickHandler(event);" />
    </mx:ApplicationControlBar>
 
</s:Application>

This entry is based on a beta version of the Flex 4 SDK and therefore is very likely to change as development of the Flex SDK continues. The API can (and will) change causing examples to possibly not compile in newer versions of the Flex 4 SDK.

 
]]> http://blog.flexexamples.com/2009/07/07/setting-a-title-background-image-fill-on-a-halo-alert-control-in-flex-4/feed/ 1 Removing the default dropshadow from the Halo Alert control in Flex 4 http://blog.flexexamples.com/2009/07/06/removing-the-default-dropshadow-from-the-halo-alert-control-in-flex-4/ http://blog.flexexamples.com/2009/07/06/removing-the-default-dropshadow-from-the-halo-alert-control-in-flex-4/#comments Tue, 07 Jul 2009 06:59:12 +0000 Peter deHaan http://blog.flexexamples.com/?p=1463 The following example shows how you can remove the default dropshadow from the Halo Alert control (with default Spark skins) in Flex 4 by setting the borderSkin style.

Full code after the jump.

<?xml version="1.0" encoding="utf-8"?> <!-- http://blog.flexexamples.com/2009/07/06/removing-the-default-dropshadow-from-the-halo-alert-control-in-flex-4/ --> <s:Application name="Halo_Alert_borderSkin_test2" xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark" xmlns:mx="library://ns.adobe.com/flex/halo">   <fx:Style> @namespace s "library://ns.adobe.com/flex/spark"; @namespace mx "library://ns.adobe.com/flex/halo";   mx|Alert [...]]]> The following example shows how you can remove the default dropshadow from the Halo Alert control (with default Spark skins) in Flex 4 by setting the borderSkin style.

Full code after the jump.

The following example(s) require Flash Player 10 and the Adobe Flex 4 SDK. To download the Adobe Flash Builder 4 trial, see http://www.adobe.com/products/flex/. To download the latest nightly build of the Flex 4 SDK, see http://opensource.adobe.com/wiki/display/flexsdk/Download+Flex+4.
For more information on getting started with Flex 4 and Flash Builder 4, see the official Adobe Flex Team blog.

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/07/06/removing-the-default-dropshadow-from-the-halo-alert-control-in-flex-4/ -->
<s:Application name="Halo_Alert_borderSkin_test2"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        xmlns:mx="library://ns.adobe.com/flex/halo">
 
    <fx:Style>
        @namespace s "library://ns.adobe.com/flex/spark";
        @namespace mx "library://ns.adobe.com/flex/halo";
 
        mx|Alert {
            borderSkin: ClassReference("skins.CustomPanelBorderSkin");
        }
    </fx:Style>
 
    <fx:Script>
        <![CDATA[
            import mx.controls.Alert;
 
            protected function btn_click(evt:MouseEvent):void {
                Alert.show("The quick brown fox jumps over the lazy dog.", "Alert title");
            }
        ]]>
    </fx:Script>
 
    <mx:ApplicationControlBar width="100%" cornerRadius="0">
        <s:Button id="btn"
                label="Show Alert"
                click="btn_click(event);" />
    </mx:ApplicationControlBar>
 
</s:Application>

And the custom border skin class, skins/CustomPanelBorderSkin.mxml, is as follows:

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/07/06/removing-the-default-dropshadow-from-the-halo-alert-control-in-flex-4/ -->
<s:SparkSkin name="CustomPanelBorderSkin"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        implements="mx.core.IRectangularBorder">
 
    <fx:Script>
        <![CDATA[
            import mx.core.EdgeMetrics;
            import mx.core.IUIComponent;
 
            /* Define the skin elements that should not be colorized. 
               For panel, border and title backround are skinned, but the content area and title text are not. */
            static private const exclusions:Array = ["background"];
            override public function get colorizeExclusions():Array {
                return exclusions;
            }
 
            /* Define the content fill items that should be colored by the "contentBackgroundColor" style. */
            static private const contentFill:Array = ["bgFill"];
            override public function get contentItems():Array {
                return contentFill
            }
 
            private var _metrics:EdgeMetrics = new EdgeMetrics(1, 32, 1, 1);
            public function get borderMetrics():EdgeMetrics {
                var hasPanelParent:Boolean = isPanel(parent);
                var controlBar:IUIComponent = hasPanelParent ? Object(parent).mx_internal::_controlBar : null;
 
                if (controlBar && controlBar.includeInLayout) {
                    _metrics.bottom = controlBar.getExplicitOrMeasuredHeight() + 1;
                } else {
                    _metrics.bottom = 1;
                }
                return _metrics;
            }
 
            public function get backgroundImageBounds():Rectangle {
                return null;
            }
 
            public function set backgroundImageBounds(value:Rectangle):void {
            }
 
            public function get hasBackgroundImage():Boolean {
                return false;
            }
 
            public function layoutBackgroundImage():void {
            }
 
            override protected function updateDisplayList(unscaledWidth:Number, unscaledHeight:Number):void {
                var em:EdgeMetrics = borderMetrics;
                if (em.bottom > 1) {
                    cbbg.height = em.bottom - 1;
                    cbdiv.bottom = cbbg.height;
                    cbbg.visible = cbdiv.visible = true;
                } else {
                    cbbg.visible = cbdiv.visible = false;
                }
                super.updateDisplayList(unscaledWidth, unscaledHeight);
            }
 
            private static var panels:Object = {};
 
            private static function isPanel(parent:Object):Boolean {
                var s:String = getQualifiedClassName(parent);
                if (panels[s] == 1) {
                    return true;
                }
                if (panels[s] == 0) {
                    return false;
                }
                if (s == "mx.containers::Panel") {
                    panels[s] == 1;
                    return true;
                }
                var x:XML = describeType(parent);
                var xmllist:XMLList = x.extendsClass.(@type == "mx.containers::Panel");
                if (xmllist.length() == 0) {
                    panels[s] = 0;
                    return false;
                }
                panels[s] = 1;
                return true;
            }
        ]]>
    </fx:Script>
 
    <!-- layer 1: border -->
    <s:Rect left="0" right="0" top="0" bottom="0">
        <s:stroke>
            <s:SolidColorStroke color="0" alpha="0.50" weight="1" />
        </s:stroke>
    </s:Rect>
 
    <!-- layer 2: background fill -->
    <s:Rect id="background" left="1" top="1" right="1" bottom="1">
        <s:fill>
            <s:SolidColor color="0xFFFFFF" id="bgFill" />
        </s:fill>
    </s:Rect>
 
    <!-- layer 3: title bar fill -->
    <s:Rect left="1" right="1" top="1" height="30">
       <s:fill>
            <s:LinearGradient rotation="90">
                <s:GradientEntry color="0xE2E2E2" />
                <s:GradientEntry color="0xD9D9D9" />
            </s:LinearGradient>
       </s:fill>
    </s:Rect>
 
    <!-- layer 4: title bar highlight -->
    <s:Rect left="1" right="1" top="1" height="30">
       <s:stroke>
            <s:LinearGradientStroke rotation="90" weight="1">
                <s:GradientEntry color="0xEAEAEA" />
                <s:GradientEntry color="0xD9D9D9" />
            </s:LinearGradientStroke>
       </s:stroke>
    </s:Rect>
    <s:Rect left="1" right="1" top="31" height="1">
        <s:fill>
            <s:SolidColor color="0xC0C0C0" />
        </s:fill>
    </s:Rect>
 
    <!-- layer 5: control bar background -->
    <s:Rect id="cbbg" left="1" right="1" bottom="1" height="20">
        <s:fill>
            <s:SolidColor color="0xE8E8E8" />
        </s:fill>
    </s:Rect>
 
    <!-- layer 6: control bar divider line -->
    <s:Rect id="cbdiv" left="1" right="1" bottom="20" height="1">
        <s:fill>
            <s:SolidColor color="0xCDCDCD" />
        </s:fill>
    </s:Rect>
 
</s:SparkSkin>

Or, you could set the borderSkin style using ActionScript, as seen in the following example:

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/07/06/removing-the-default-dropshadow-from-the-halo-alert-control-in-flex-4/ -->
<s:Application name="Halo_Alert_borderSkin_test2"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        xmlns:mx="library://ns.adobe.com/flex/halo"
        initialize="init();">
 
    <fx:Script>
        <![CDATA[
            import mx.controls.Alert;
            import skins.CustomPanelBorderSkin;
 
            protected function init():void {
                var alertStyles:CSSStyleDeclaration = StyleManager.getStyleDeclaration("mx.controls.Alert");
                alertStyles.setStyle("borderSkin", CustomPanelBorderSkin);
            }
 
            protected function btn_click(evt:MouseEvent):void {
                Alert.show("The quick brown fox jumps over the lazy dog.", "Alert title");
            }
        ]]>
    </fx:Script>
 
    <mx:ApplicationControlBar width="100%" cornerRadius="0">
        <s:Button id="btn"
                label="Show Alert"
                click="btn_click(event);" />
    </mx:ApplicationControlBar>
 
</s:Application>

This entry is based on a beta version of the Flex 4 SDK and therefore is very likely to change as development of the Flex SDK continues. The API can (and will) change causing examples to possibly not compile in newer versions of the Flex 4 SDK.

 
]]> http://blog.flexexamples.com/2009/07/06/removing-the-default-dropshadow-from-the-halo-alert-control-in-flex-4/feed/ 0 Setting a background image fill on a Halo Alert control in Flex 4 http://blog.flexexamples.com/2009/07/05/setting-a-background-image-fill-on-a-halo-alert-control-in-flex-4/ http://blog.flexexamples.com/2009/07/05/setting-a-background-image-fill-on-a-halo-alert-control-in-flex-4/#comments Mon, 06 Jul 2009 06:59:36 +0000 Peter deHaan http://blog.flexexamples.com/?p=1458 The following example shows how you can set a repeating background image fill on a Halo Alert control (with default Spark skin) in Flex 4 by setting the borderSkin style.

Full code after the jump.

<?xml version="1.0" encoding="utf-8"?> <!-- http://blog.flexexamples.com/2009/07/05/setting-a-background-image-fill-on-a-halo-alert-control-in-flex-4/ --> <s:Application name="Halo_Alert_borderSkin_test" xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark" xmlns:mx="library://ns.adobe.com/flex/halo">   <fx:Style> @namespace s "library://ns.adobe.com/flex/spark"; @namespace mx "library://ns.adobe.com/flex/halo"; [...]]]> The following example shows how you can set a repeating background image fill on a Halo Alert control (with default Spark skin) in Flex 4 by setting the borderSkin style.

Full code after the jump.

The following example(s) require Flash Player 10 and the Adobe Flex 4 SDK. To download the Adobe Flash Builder 4 trial, see http://www.adobe.com/products/flex/. To download the latest nightly build of the Flex 4 SDK, see http://opensource.adobe.com/wiki/display/flexsdk/Download+Flex+4.
For more information on getting started with Flex 4 and Flash Builder 4, see the official Adobe Flex Team blog.

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/07/05/setting-a-background-image-fill-on-a-halo-alert-control-in-flex-4/ -->
<s:Application name="Halo_Alert_borderSkin_test"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        xmlns:mx="library://ns.adobe.com/flex/halo">
 
    <fx:Style>
        @namespace s "library://ns.adobe.com/flex/spark";
        @namespace mx "library://ns.adobe.com/flex/halo";
 
        mx|Alert {
            borderSkin: ClassReference("skins.CustomPanelBorderSkin");
        }
    </fx:Style>
 
    <fx:Script>
        <![CDATA[
            import mx.controls.Alert;
 
            protected function btn_clickHandler(evt:MouseEvent):void {
                var a:Alert = Alert.show("The quick brown fox jumps over the lazy dog", "Alert title");
                a.status = mx_internal::VERSION;
            }
        ]]>
    </fx:Script>
 
    <mx:ApplicationControlBar width="100%" cornerRadius="0">
        <s:Button id="btn"
                label="Launch Alert"
                click="btn_clickHandler(event);" />
    </mx:ApplicationControlBar>
 
</s:Application>

And the custom skin class, skins/CustomPanelBorderSkin.mxml, is as follows:

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/07/05/setting-a-background-image-fill-on-a-halo-alert-control-in-flex-4/ -->
<s:SparkSkin name="CustomPanelBorderSkin"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        implements="mx.core.IRectangularBorder">
 
    <fx:Script>
        <![CDATA[
        import mx.core.EdgeMetrics;
        import mx.core.IUIComponent;
 
        /* Define the skin elements that should not be colorized. 
           For panel, border and title backround are skinned, but the content area and title text are not. */
        static private const exclusions:Array = ["background"];
        override public function get colorizeExclusions():Array {
            return exclusions;
        }
 
        /* Define the content fill items that should be colored by the "contentBackgroundColor" style. */
        static private const contentFill:Array = [];
        override public function get contentItems():Array {
            return contentFill
        };
 
        private var _metrics:EdgeMetrics = new EdgeMetrics(1, 32, 1, 1);
        public function get borderMetrics():EdgeMetrics {
            var hasPanelParent:Boolean = isPanel(parent);
            var controlBar:IUIComponent = hasPanelParent ? Object(parent).mx_internal::_controlBar : null;
            if (controlBar && controlBar.includeInLayout) {
                _metrics.bottom = controlBar.getExplicitOrMeasuredHeight() + 1;
            } else {
                _metrics.bottom = 1;
            }
            return _metrics;
        }
 
        public function get backgroundImageBounds():Rectangle {
            return null;
        }
 
        public function set backgroundImageBounds(value:Rectangle):void {
        }
 
        public function get hasBackgroundImage():Boolean {
            return false;
        }
 
        public function layoutBackgroundImage():void {
        }
 
        override protected function updateDisplayList(unscaledWidth:Number, unscaledHeight:Number):void {
            var em:EdgeMetrics = borderMetrics;
            if (em.bottom > 1) {
                cbbg.height = em.bottom - 1;
                cbdiv.bottom = cbbg.height;
                cbbg.visible = cbdiv.visible = true;
            } else {
                cbbg.visible = cbdiv.visible = false;
            }
            super.updateDisplayList(unscaledWidth, unscaledHeight);
        }
 
        private static var panels:Object = {};
 
        private static function isPanel(parent:Object):Boolean {
            var s:String = getQualifiedClassName(parent);
            if (panels[s] == 1) {
                return true;
            }
            if (panels[s] == 0) {
                return false;
            }
            if (s == "mx.containers::Panel") {
                panels[s] == 1;
                return true;
            }
            var x:XML = describeType(parent);
            var xmllist:XMLList = x.extendsClass.(@type == "mx.containers::Panel");
            if (xmllist.length() == 0) {
                panels[s] = 0;
                return false;
            }
            panels[s] = 1;
            return true;
        }
        ]]>
    </fx:Script>
 
    <!-- drop shadow -->
    <s:Rect left="0" top="0" right="0" bottom="0">
        <s:filters>
            <s:DropShadowFilter blurX="20" blurY="20" alpha="0.32" distance="11" angle="90" knockout="true" />
        </s:filters>
        <s:fill>
            <s:SolidColor color="0" />
        </s:fill>
    </s:Rect>
 
    <!-- layer 1: border -->
    <s:Rect left="0" right="0" top="0" bottom="0">
        <s:stroke>
            <s:SolidColorStroke color="0" alpha="0.50" weight="1" />
        </s:stroke>
    </s:Rect>
 
    <!-- layer 2: background fill -->
    <s:Rect id="background" left="1" top="1" right="1" bottom="1" alpha="0.6">
        <s:fill>
            <s:BitmapFill source="@Embed('assets/pattern_158.gif')" />
        </s:fill>
    </s:Rect>
 
    <!-- layer 3: title bar fill -->
    <s:Rect left="1" right="1" top="1" height="30">
       <s:fill>
            <s:LinearGradient rotation="90">
                <s:GradientEntry color="0xE2E2E2" />
                <s:GradientEntry color="0xD9D9D9" />
            </s:LinearGradient>
       </s:fill>
    </s:Rect>
 
    <!-- layer 4: title bar highlight -->
    <s:Rect left="1" right="1" top="1" height="30">
       <s:stroke>
            <s:LinearGradientStroke rotation="90" weight="1">
                <s:GradientEntry color="0xEAEAEA" />
                <s:GradientEntry color="0xD9D9D9" />
            </s:LinearGradientStroke>
       </s:stroke>
    </s:Rect>
    <s:Rect left="1" right="1" top="31" height="1">
        <s:fill>
            <s:SolidColor color="0xC0C0C0" />
        </s:fill>
    </s:Rect>
 
    <!-- layer 5: control bar background -->
    <s:Rect id="cbbg" left="1" right="1" bottom="1" height="20">
        <s:fill>
            <s:SolidColor color="0xE8E8E8" />
        </s:fill>
    </s:Rect>
 
    <!-- layer 6: control bar divider line -->
    <s:Rect id="cbdiv" left="1" right="1" bottom="20" height="1">
        <s:fill>
            <s:SolidColor color="0xCDCDCD" />
        </s:fill>
    </s:Rect>
 
</s:SparkSkin>

Or, you can also set the borderSkin style globally ActionScript, as seen in the following example:

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/07/05/setting-a-background-image-fill-on-a-halo-alert-control-in-flex-4/ -->
<s:Application name="Halo_Alert_borderSkin_test"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        xmlns:mx="library://ns.adobe.com/flex/halo"
        initialize="init();">
 
    <fx:Script>
        <![CDATA[
            import mx.controls.Alert;
            import skins.CustomPanelBorderSkin;
 
            private function init():void {
                var alertStyles:CSSStyleDeclaration = StyleManager.getStyleDeclaration("mx.controls.Alert");
                alertStyles.setStyle("borderSkin", CustomPanelBorderSkin);
            }
 
            protected function btn_clickHandler(evt:MouseEvent):void {
                var a:Alert = Alert.show("The quick brown fox jumps over the lazy dog", "Alert title");
                a.status = mx_internal::VERSION;
            }
        ]]>
    </fx:Script>
 
    <mx:ApplicationControlBar width="100%" cornerRadius="0">
        <s:Button id="btn"
                label="Launch Alert"
                click="btn_clickHandler(event);" />
    </mx:ApplicationControlBar>
 
</s:Application>

This entry is based on a beta version of the Flex 4 SDK and therefore is very likely to change as development of the Flex SDK continues. The API can (and will) change causing examples to possibly not compile in newer versions of the Flex 4 SDK.

 
]]> http://blog.flexexamples.com/2009/07/05/setting-a-background-image-fill-on-a-halo-alert-control-in-flex-4/feed/ 1 Setting the background fill image on a Halo DataGrid in Flex 4 http://blog.flexexamples.com/2009/07/04/setting-the-background-fill-image-on-a-halo-datagrid-in-flex-4/ http://blog.flexexamples.com/2009/07/04/setting-the-background-fill-image-on-a-halo-datagrid-in-flex-4/#comments Sun, 05 Jul 2009 06:59:18 +0000 Peter deHaan http://blog.flexexamples.com/?p=1427 The following example shows how you can set the background fill image on a Halo DataGrid control (with default Spark skin) in Flex 4 by setting the borderSkin and alternatingItemColors styles.

Full code after the jump.

<?xml version="1.0" encoding="utf-8"?> <!-- http://blog.flexexamples.com/2009/07/04/setting-the-background-fill-image-on-a-halo-datagrid-in-flex-4/ --> <s:Application name="Halo_DataGrid_borderSkin_test" xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark" xmlns:mx="library://ns.adobe.com/flex/halo">   <mx:DataGrid id="dataGrid" dataProvider="{Font.enumerateFonts(true)}" borderSkin="skins.CustomBorderSkin" alternatingItemColors="[]" horizontalCenter="0" [...]]]> The following example shows how you can set the background fill image on a Halo DataGrid control (with default Spark skin) in Flex 4 by setting the borderSkin and alternatingItemColors styles.

Full code after the jump.

The following example(s) require Flash Player 10 and the Adobe Flex 4 SDK. To download the Adobe Flash Builder 4 trial, see http://www.adobe.com/products/flex/. To download the latest nightly build of the Flex 4 SDK, see http://opensource.adobe.com/wiki/display/flexsdk/Download+Flex+4.
For more information on getting started with Flex 4 and Flash Builder 4, see the official Adobe Flex Team blog.

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/07/04/setting-the-background-fill-image-on-a-halo-datagrid-in-flex-4/ -->
<s:Application name="Halo_DataGrid_borderSkin_test"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        xmlns:mx="library://ns.adobe.com/flex/halo">
 
    <mx:DataGrid id="dataGrid"
            dataProvider="{Font.enumerateFonts(true)}"
            borderSkin="skins.CustomBorderSkin"
            alternatingItemColors="[]"
            horizontalCenter="0" verticalCenter="0" />
 
</s:Application>

And the custom border skin class, skins/CustomBorderSkin.mxml, is as follows:

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/07/04/setting-the-background-fill-image-on-a-halo-datagrid-in-flex-4/ -->
<local:SparkSkinForHalo name="CustomBorderSkin"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark" 
        xmlns:local="mx.skins.spark.*"
        implements="mx.core.IRectangularBorder">
 
    <fx:Script>
        <![CDATA[
            import mx.core.EdgeMetrics;
            import mx.core.IUIComponent;
            import mx.graphics.RectangularDropShadow;
 
            /* Define the skin elements that should not be colorized. */
            static private const exclusions:Array = ["background"];
            override public function get colorizeExclusions():Array {return exclusions;}
 
            /* Define the content fill items that should be colored by the "contentBackgroundColor" style. */
            static private const contentFill:Array = [];
            override public function get contentItems():Array {return contentFill};
 
            /* Define the border item. */
            static private const borderItem:Array = ["borderStroke"];
            override protected function get borderItems():Array {return borderItem;}
            override protected function get defaultBorderItemColor():uint {return 0x696969;}
 
            static private const metrics:EdgeMetrics = new EdgeMetrics(1, 1, 1, 1);
 
            private var dropShadow:RectangularDropShadow;
 
            public function get borderMetrics():EdgeMetrics {
                return metrics;
            }
 
            public function get backgroundImageBounds():Rectangle {
                return null;
            }
 
            public function set backgroundImageBounds(value:Rectangle):void {
            }
 
            public function get hasBackgroundImage():Boolean {
                return false;
            }
 
            public function layoutBackgroundImage():void {
            }
 
            override protected function updateDisplayList(unscaledWidth:Number, unscaledHeight:Number):void {
                graphics.clear();
 
                super.updateDisplayList(unscaledWidth, unscaledHeight);
 
                if (parent && parent is IUIComponent && !IUIComponent(parent).enabled) {
                    alpha = 0.5;
                } else {
                    alpha = 1.0;
                }
 
                // Draw drop shadow, if needed
                if ((getStyle("dropShadowEnabled") == false) || 
                        (getStyle("dropShadowEnabled") == "false") ||
                        (width == 0) || (height == 0)) {
                    return;
                }
 
                // Create a RectangularDropShadow object, set its properties,
                // and draw the shadow
                if (!dropShadow) {
                    dropShadow = new RectangularDropShadow();
                }
 
                dropShadow.distance = 5;
                dropShadow.angle = 90;
                dropShadow.color = 0;
                dropShadow.alpha = 0.8;
                dropShadow.blurX = 20;
                dropShadow.blurY = 20;
 
                dropShadow.drawShadow(graphics, x, y, width, height);
            }
 
            private function getDropShadowAngle(distance:Number, direction:String):Number {
                if (direction == "left") {
                    return distance >= 0 ? 135 : 225;
                } else if (direction == "right") {
                    return distance >= 0 ? 45 : 315;
                } else { // direction == "center" 
                    return distance >= 0 ? 90 : 270;
                }
            }
        ]]>
    </fx:Script>
 
    <s:Group left="0" right="0" top="0" bottom="0">
        <!-- border --> 
        <s:Rect left="0" right="0" top="0" bottom="0">
            <s:stroke>
                <s:SolidColorStroke id="borderStroke" />
            </s:stroke>
        </s:Rect>
 
        <!-- fill -->
        <s:Rect id="background" left="1" right="1" top="1" bottom="1" alpha="0.6">
            <s:fill>
                <s:BitmapFill source="@Embed('assets/pattern_147.gif')" />
            </s:fill>
        </s:Rect>
    </s:Group>
 
</local:SparkSkinForHalo>

The default Spark skins for the MX/Halo controls/containers can be found in the Flex SDK at:
%Flex SDK%\frameworks\projects\sparkskins\src\mx\skins\spark\*.

View source is enabled in the following example.

Background image pattern copyright of Squidfingers.com.



You can also set the borderSkin style in an external .CSS file or <Style/> block, as seen in the following example:

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/07/04/setting-the-background-fill-image-on-a-halo-datagrid-in-flex-4/ -->
<s:Application name="Halo_DataGrid_borderSkin_test"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        xmlns:mx="library://ns.adobe.com/flex/halo">
 
    <fx:Style>
        @namespace s "library://ns.adobe.com/flex/spark";
        @namespace mx "library://ns.adobe.com/flex/halo";
 
        mx|DataGrid {
            alternatingItemColors: ClassReference(null);
            borderSkin: ClassReference("skins.CustomBorderSkin");
        }
    </fx:Style>
 
    <mx:DataGrid id="dataGrid"
            dataProvider="{Font.enumerateFonts(true)}"
            horizontalCenter="0" verticalCenter="0" />
 
</s:Application>

Or, you can set the borderSkin style using ActionScript, as seen in the following example:

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/07/04/setting-the-background-fill-image-on-a-halo-datagrid-in-flex-4/ -->
<s:Application name="Halo_DataGrid_borderSkin_test"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        xmlns:mx="library://ns.adobe.com/flex/halo">
 
    <fx:Script>
        <![CDATA[
            import skins.CustomBorderSkin;
 
            protected function btn_click(evt:MouseEvent):void {
                dataGrid.setStyle("borderSkin", CustomBorderSkin);
            }
        ]]>
    </fx:Script>
 
    <mx:ApplicationControlBar width="100%" cornerRadius="0">
        <s:Button id="btn"
                label="Set border skin"
                click="btn_click(event);" />
    </mx:ApplicationControlBar>
 
    <mx:DataGrid id="dataGrid"
            dataProvider="{Font.enumerateFonts(true)}"
            alternatingItemColors="[]"
            horizontalCenter="0" verticalCenter="0" />
 
</s:Application>

This entry is based on a beta version of the Flex 4 SDK and therefore is very likely to change as development of the Flex SDK continues. The API can (and will) change causing examples to possibly not compile in newer versions of the Flex 4 SDK.

 
]]> http://blog.flexexamples.com/2009/07/04/setting-the-background-fill-image-on-a-halo-datagrid-in-flex-4/feed/ 2 Setting the corner radius on the Halo Alert control in Flex 4 http://blog.flexexamples.com/2009/06/20/setting-the-corner-radius-on-the-halo-alert-control-in-flex-4/ http://blog.flexexamples.com/2009/06/20/setting-the-corner-radius-on-the-halo-alert-control-in-flex-4/#comments Sun, 21 Jun 2009 06:59:38 +0000 Peter deHaan http://blog.flexexamples.com/2009/06/20/setting-the-corner-radius-on-the-halo-control-in-flex-4/ The following example shows how you can set the corner radius on the Halo TextArea control (with default Spark skin) in Flex 4 by creating a custom skin and setting the radiusX and radiusY properties on the Rect objects (in Flex 3 and earlier this was done by setting the cornerRadius style directly).

Full code [...]]]> The following example shows how you can set the corner radius on the Halo TextArea control (with default Spark skin) in Flex 4 by creating a custom skin and setting the radiusX and radiusY properties on the Rect objects (in Flex 3 and earlier this was done by setting the cornerRadius style directly).

Full code after the jump.

The following example(s) require Flash Player 10 and the Adobe Flex 4 SDK. To download the Adobe Flash Builder 4 trial, see http://www.adobe.com/products/flex/. To download the latest nightly build of the Flex 4 SDK, see http://opensource.adobe.com/wiki/display/flexsdk/Download+Flex+4.
For more information on getting started with Flex 4 and Flash Builder 4, see the official Adobe Flex Team blog.

View MXML

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/06/20/setting-the-corner-radius-on-the-halo-control-in-flex-4/ -->
<s:Application name="Alert_SparkSkin_cornerRadius_test"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:mx="library://ns.adobe.com/flex/halo"
        xmlns:s="library://ns.adobe.com/flex/spark">

    <fx:Style>
        @namespace mx "library://ns.adobe.com/flex/halo";

        mx|Alert {
            borderSkin: ClassReference("skins.CustomAlertSkin");
        }
    </fx:Style>

    <fx:Script>
        <![CDATA[
            import mx.controls.Alert;
        ]]>
    </fx:Script>

    <s:Button id="btn"
            label="show Alert"
            click="Alert.show('The quick brown fox jumps over the lazy dog.', 'Alert title');"
            horizontalCenter="0"
            verticalCenter="0" />

</s:Application>

And the custom Alert skin class is as follows:

View skins/CustomAlertSkin.mxml

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/06/20/setting-the-corner-radius-on-the-halo-control-in-flex-4/ -->
<s:SparkSkin name="CustomAlertSkin"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        implements="mx.core.IRectangularBorder">

    <fx:Script>
        <![CDATA[
        import mx.core.EdgeMetrics;
        import mx.core.IUIComponent;

        /* Define the skin elements that should not be colorized.
           For panel, border and title backround are skinned, but the content area and title text are not. */
        static private const exclusions:Array = ["background"];
        override public function get colorizeExclusions():Array {return exclusions;}

        /* Define the content fill items that should be colored by the "contentBackgroundColor" style. */
        static private const contentFill:Array = ["bgFill"];
        override public function get contentItems():Array {return contentFill};

        private var _metrics:EdgeMetrics = new EdgeMetrics(1, 32, 1, 1);
        public function get borderMetrics():EdgeMetrics {
            var hasPanelParent:Boolean = isPanel(parent);
            var controlBar:IUIComponent = hasPanelParent ? Object(parent).mx_internal::_controlBar : null;

            if (controlBar && controlBar.includeInLayout) {
                _metrics.bottom = controlBar.getExplicitOrMeasuredHeight() + 1;
            } else {
                _metrics.bottom = 1;
            }
            return _metrics;
        }

        public function get backgroundImageBounds():Rectangle {
            return null;
        }

        public function set backgroundImageBounds(value:Rectangle):void {
        }

        public function get hasBackgroundImage():Boolean {
            return false;
        }

        public function layoutBackgroundImage():void {
        }

        override protected function updateDisplayList(unscaledWidth:Number, unscaledHeight:Number):void {
            var em:EdgeMetrics = borderMetrics;

            if (em.bottom > 1) {
                cbbg.height = em.bottom - 1;
                cbdiv.bottom = cbbg.height;
                cbbg.visible = cbdiv.visible = true;
            } else {
                cbbg.visible = cbdiv.visible = false;
            }
            super.updateDisplayList(unscaledWidth, unscaledHeight);
        }

        private static var panels:Object = {};

        private static function isPanel(parent:Object):Boolean {
            var s:String = getQualifiedClassName(parent);
            if (panels[s] == 1) {
                return true;
            }
            if (panels[s] == 0) {
                return false;
            }
            if (s == "mx.containers::Panel") {
                panels[s] == 1;
                return true;
            }

            var x:XML = describeType(parent);
            var xmllist:XMLList = x.extendsClass.(@type == "mx.containers::Panel");
            if (xmllist.length() == 0) {
                panels[s] = 0;
                return false;
            }
            panels[s] = 1;
            return true;
        }
        ]]>
    </fx:Script>

    <fx:Declarations>
        <fx:Number id="rad">10</fx:Number>
    </fx:Declarations>

    <!-- drop shadow -->
    <s:Rect left="0" top="0" right="0" bottom="0" radiusX="{rad}" radiusY="{rad}">
        <s:filters>
            <s:DropShadowFilter blurX="20" blurY="20" alpha="0.32" distance="11" angle="90" knockout="true" />
        </s:filters>
        <s:fill>
            <s:SolidColor color="0" />
        </s:fill>
    </s:Rect>

    <!-- layer 1: border -->
    <s:Rect left="0" right="0" top="0" bottom="0" radiusX="{rad}" radiusY="{rad}">
        <s:stroke>
            <s:SolidColorStroke color="0" alpha="0.50" weight="1" />
        </s:stroke>
    </s:Rect>

    <!-- layer 2: background fill -->
    <s:Rect id="background" left="1" top="1" right="1" bottom="1" radiusX="{rad}" radiusY="{rad}">
        <s:fill>
            <s:SolidColor color="0xFFFFFF" id="bgFill" />
        </s:fill>
    </s:Rect>

    <!-- layer 5: control bar background -->
    <s:Rect id="cbbg" left="1" right="1" bottom="1" height="20" radiusX="{rad}" radiusY="{rad}">
        <s:fill>
            <s:SolidColor color="0xE8E8E8" />
        </s:fill>
    </s:Rect>

    <!-- layer 6: control bar divider line -->
    <s:Rect id="cbdiv" left="1" right="1" bottom="20" height="1">
        <s:fill>
            <s:SolidColor color="0xCDCDCD" />
        </s:fill>
    </s:Rect>

</s:SparkSkin>

This entry is based on a beta version of the Flex 4 SDK and therefore is very likely to change as development of the Flex SDK continues. The API can (and will) change causing examples to possibly not compile in newer versions of the Flex 4 SDK.

 
]]> http://blog.flexexamples.com/2009/06/20/setting-the-corner-radius-on-the-halo-alert-control-in-flex-4/feed/ 6 Changing the background alpha on the Halo TextArea control in Flex 4 http://blog.flexexamples.com/2009/06/09/changing-the-background-alpha-on-the-halo-textarea-control-in-flex-4/ http://blog.flexexamples.com/2009/06/09/changing-the-background-alpha-on-the-halo-textarea-control-in-flex-4/#comments Wed, 10 Jun 2009 06:59:12 +0000 Peter deHaan http://blog.flexexamples.com/2009/06/09/changing-the-background-alpha-on-the-halo-textarea-control-in-flex-4/ The following example shows how you can set the background alpha on the Halo TextArea control’s Spark skin in Flex 4 by setting the borderSkin style. As you may have noticed, the Halo components have new “Spark” themed skins in Flex 4 (basically so you can use Halo+Spark components in the same Flex project and [...]]]> The following example shows how you can set the background alpha on the Halo TextArea control’s Spark skin in Flex 4 by setting the borderSkin style. As you may have noticed, the Halo components have new “Spark” themed skins in Flex 4 (basically so you can use Halo+Spark components in the same Flex project and have a consistent look-and-feel). You may also have noticed that several styles on the Halo controls don’t appear to work any more when using the Spark skins. For example, if you want to change the background fill alpha on the Halo TextArea control in Flex 4, you can no longer set the backgroundAlpha style, you’ll now need to create a custom skin and set the borderSkin style.

The various Halo component’s new Spark skins can be found in your Flex 4 SDK installation in the following location: <Flex SDK>\frameworks\projects\sparkskins\src\mx\skins\spark\…

If you want to set the border skin on the Halo TextArea control, you’ll need to copy the TextInputBorderSkin.mxml file.

Full code after the jump.

The following example(s) require Flash Player 10 and the Adobe Flex 4 SDK. To download the Adobe Flash Builder 4 trial, see http://www.adobe.com/products/flex/. To download the latest nightly build of the Flex 4 SDK, see http://opensource.adobe.com/wiki/display/flexsdk/Download+Flex+4.
For more information on getting started with Flex 4 and Flash Builder 4, see the official Adobe Flex Team blog.

View MXML

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/06/09/changing-the-background-alpha-on-the-halo-textarea-control-in-flex-4/ -->
<s:Application name="TextArea_SparkSkin_backgroundAlpha_test"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        xmlns:mx="library://ns.adobe.com/flex/halo"
        backgroundColor="red">

    <mx:TextArea id="textArea"
            borderSkin="skins.CustomHaloTextAreaBorderSkin"
            left="50" right="50"
            top="50" bottom="50">
        <mx:htmlText><fx:String source="lorem.html" /></mx:htmlText>
    </mx:TextArea>

</s:Application>

And the custom skin class, CustomHaloTextAreaBorderSkin.mxml, is as follows:

View skins/CustomHaloTextAreaBorderSkin.mxml

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/06/09/changing-the-background-alpha-on-the-halo-textarea-control-in-flex-4/ -->
<local:SparkSkinForHalo name="CustomHaloTextAreaBorderSkin"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        xmlns:local="mx.skins.spark.*"
        implements="mx.core.IBorder">

    <fx:Script>
        <![CDATA[
            import mx.core.EdgeMetrics;
            import mx.core.IUIComponent;

            /* Define the skin elements that should not be colorized. */
            static private const exclusions:Array = ["background"];
            override public function get colorizeExclusions():Array {return exclusions;}

            /* Define the content fill items that should be colored by the "contentBackgroundColor" style. */
            static private const contentFill:Array = ["bgFill"];
            override public function get contentItems():Array {return contentFill};

            /* Define the border items.*/
            static private const borderItem:Array = ["borderEntry1", "borderEntry2"];
            override protected function get borderItems():Array {return borderItem;}

            static private const metrics:EdgeMetrics = new EdgeMetrics(2, 2, 2, 2);

            public function get borderMetrics():EdgeMetrics {
                return metrics;
            }

            override protected function updateDisplayList(unscaledWidth:Number, unscaledHeight:Number):void {
                super.updateDisplayList(unscaledWidth, unscaledHeight);

                if (parent && (parent is IUIComponent) && !IUIComponent(parent).enabled) {
                    alpha = 0.5;
                } else {
                    alpha = 1;
                }
            }
        ]]>
    </fx:Script>

    <!-- border -->
    <s:Rect left="0" right="0" top="0" bottom="0">
        <s:stroke>
            <s:LinearGradientStroke rotation="90" weight="1">
                <s:GradientEntry id="borderEntry1" alpha="0.5525" />
                <s:GradientEntry id="borderEntry2" alpha="0.6375" />
            </s:LinearGradientStroke>
        </s:stroke>
    </s:Rect>

    <!-- fill -->
    <s:Rect id="background" left="1" right="1" top="1" bottom="1">
        <s:fill>
            <s:SolidColor id="bgFill" color="0xFFFFFF" alpha="0.4" />
        </s:fill>
    </s:Rect>

    <!-- shadow -->
    <s:Rect left="1" top="1" right="1" height="1">
        <s:fill>
            <s:SolidColor color="0x000000" alpha="0.12" />
        </s:fill>
    </s:Rect>

</local:SparkSkinForHalo>

The default Spark skins for the MX/Halo controls/containers can be found in the Flex SDK at:
%Flex SDK%\frameworks\projects\sparkskins\src\mx\skins\spark\*.

View source is enabled in the following example.

You can also set the borderSkin style in an external .CSS file or <Style/> block, as seen in the following example:

View MXML

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/06/09/changing-the-background-alpha-on-the-halo-textarea-control-in-flex-4/ -->
<s:Application name="TextArea_SparkSkin_backgroundAlpha_test"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        xmlns:mx="library://ns.adobe.com/flex/halo"
        backgroundColor="red">

    <fx:Style>
        @namespace mx "library://ns.adobe.com/flex/halo";

        mx|TextArea {
            borderSkin: ClassReference("skins.CustomHaloTextAreaBorderSkin");
            left: 50;
            right: 50;
            top: 50;
            bottom: 50;
        }
    </fx:Style>

    <mx:TextArea id="textArea">
        <mx:htmlText><fx:String source="lorem.html" /></mx:htmlText>
    </mx:TextArea>

</s:Application>

Or you can set the borderSkin style using ActionScript, as seen in the following example:

View MXML

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/06/09/changing-the-background-alpha-on-the-halo-textarea-control-in-flex-4/ -->
<s:Application name="TextArea_SparkSkin_backgroundAlpha_test"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        xmlns:mx="library://ns.adobe.com/flex/halo"
        backgroundColor="red">

    <fx:Script>
        <![CDATA[
            import skins.CustomHaloTextAreaBorderSkin;

            private function btn_click(evt:MouseEvent):void {
                textArea.setStyle("borderSkin", CustomHaloTextAreaBorderSkin);
            }
        ]]>
    </fx:Script>

    <s:Button id="btn"
            label="Set border skin"
            click="btn_click(event);"
            left="10"
            top="10" />

    <mx:TextArea id="textArea"
            left="50" right="50"
            top="50" bottom="50">
        <mx:htmlText><fx:String source="lorem.html" /></mx:htmlText>
    </mx:TextArea>

</s:Application>

Due to popular demand, here is the “same” example in a more ActionScript friendly format:

View MXML

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/06/09/changing-the-background-alpha-on-the-halo-textarea-control-in-flex-4/ -->
<s:Application name="TextArea_SparkSkin_backgroundAlpha_test"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        xmlns:mx="library://ns.adobe.com/flex/halo"
        backgroundColor="red"
        initialize="init();">

    <fx:Script>
        <![CDATA[
            import mx.controls.TextArea;
            import skins.CustomHaloTextAreaBorderSkin;

            [Embed(source="lorem.html", mimeType="application/octet-stream")]
            private const lorem:Class;

            private var textArea:TextArea;

            private function init():void {
                textArea = new TextArea();
                textArea.htmlText = new lorem();
                textArea.left = 50;
                textArea.right = 50;
                textArea.top = 50;
                textArea.bottom = 50;
                textArea.setStyle("borderSkin", CustomHaloTextAreaBorderSkin);
                addElement(textArea);
            }
        ]]>
    </fx:Script>

</s:Application>

This entry is based on a beta version of the Flex 4 SDK and therefore is very likely to change as development of the Flex SDK continues. The API can (and will) change causing examples to possibly not compile in newer versions of the Flex 4 SDK.

 
]]> http://blog.flexexamples.com/2009/06/09/changing-the-background-alpha-on-the-halo-textarea-control-in-flex-4/feed/ 3 Removing the border skin on a List control in Flex http://blog.flexexamples.com/2009/02/02/removing-the-border-skin-on-a-list-control-in-flex/ http://blog.flexexamples.com/2009/02/02/removing-the-border-skin-on-a-list-control-in-flex/#comments Tue, 03 Feb 2009 07:58:37 +0000 Peter deHaan http://blog.flexexamples.com/2009/02/02/removing-the-border-skin-on-a-list-control-in-flex/ The following example shows how you can remove the border skin on a Flex List control by setting the borderSkin style to null using MXML, CSS, and ActionScript.

Full code after the jump.

View MXML

<?xml version="1.0" encoding="utf-8"?> <!-- http://blog.flexexamples.com/2009/02/02/removing-the-border-skin-on-a-list-control-in-flex/ --> <mx:Application name="List_borderSkin_test" xmlns:mx="http://www.adobe.com/2006/mxml" layout="vertical" verticalAlign="middle" backgroundColor="white"> <mx:List id="list" dataProvider="[Red,Orange,Yellow,Green,Blue]" borderSkin="{null}" width="100" [...]]]> The following example shows how you can remove the border skin on a Flex List control by setting the borderSkin style to null using MXML, CSS, and ActionScript.

Full code after the jump.

View MXML

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/02/02/removing-the-border-skin-on-a-list-control-in-flex/ -->
<mx:Application name="List_borderSkin_test"
        xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white">

    <mx:List id="list"
            dataProvider="[Red,Orange,Yellow,Green,Blue]"
            borderSkin="{null}"
            width="100" />

</mx:Application>

You can also set the borderSkin style in an external .CSS file or <Style> block, as seen in the following example:

View MXML

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/02/02/removing-the-border-skin-on-a-list-control-in-flex/ -->
<mx:Application name="List_borderSkin_test"
        xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white">

    <mx:Style>
        List {
            borderSkin: ClassReference(null);
        }
    </mx:Style>

    <mx:List id="list"
            dataProvider="[Red,Orange,Yellow,Green,Blue]"
            width="100" />

</mx:Application>

Or, you can set the borderSkin style using ActionScript, as seen in the following example:

View MXML

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/02/02/removing-the-border-skin-on-a-list-control-in-flex/ -->
<mx:Application name="List_borderSkin_test"
        xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white">

    <mx:Script>
        <![CDATA[
            private function init():void {
                list.setStyle("borderSkin", null);
            }
        ]]>
    </mx:Script>

    <mx:List id="list"
            dataProvider="[Red,Orange,Yellow,Green,Blue]"
            width="100"
            initialize="init();" />

</mx:Application>
 
]]> http://blog.flexexamples.com/2009/02/02/removing-the-border-skin-on-a-list-control-in-flex/feed/ 6