Flex Examples » Alert http://blog.flexexamples.com Just a bunch of Adobe Flex Examples Wed, 26 Jan 2011 18:09:51 +0000 en hourly 1 Setting the accent color on the MX Alert control default button in Flex 4 http://blog.flexexamples.com/2009/11/12/setting-the-accent-color-on-the-mx-alert-control-default-button-in-flex-4/ http://blog.flexexamples.com/2009/11/12/setting-the-accent-color-on-the-mx-alert-control-default-button-in-flex-4/#comments Fri, 13 Nov 2009 05:36:52 +0000 Peter deHaan http://blog.flexexamples.com/?p=2188 The following example shows how you can set the accent color on the MX Alert control’s default button in Flex 4 by setting the new accentColor style.

Full code after the jump.

<?xml version="1.0" encoding="utf-8"?> <!-- http://blog.flexexamples.com/2009/11/12/setting-the-accent-color-on-the-mx-alert-control-default-button-in-flex-4/ --> <s:Application name="Halo_Alert_accentColor_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" creationComplete="init();"> <s:controlBarContent> <s:Button id="btn" label="Show alert" click="init();" /> </s:controlBarContent>   <fx:Style> [...]]]> The following example shows how you can set the accent color on the MX Alert control’s default button in Flex 4 by setting the new accentColor 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/2009/11/12/setting-the-accent-color-on-the-mx-alert-control-default-button-in-flex-4/ -->
<s:Application name="Halo_Alert_accentColor_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"
        creationComplete="init();">
    <s:controlBarContent>
        <s:Button id="btn"
                label="Show alert"
                click="init();" />
    </s:controlBarContent>
 
    <fx:Style>
        @namespace s "library://ns.adobe.com/flex/spark";
        @namespace mx "library://ns.adobe.com/flex/halo";
 
        mx|Alert {
            accentColor: red;
        }
    </fx:Style>
 
    <fx:Script>
        <![CDATA[
            import mx.controls.Alert;
 
            protected function init():void {
                Alert.show("Mauris sem nisl, feugiat at fermentum eget, lacinia et nisi. Aenean vitae elit purus, et placerat quam. In justo odio, euismod vel vestibulum ac, tincidunt sit amet lectus. Aliquam non est felis, at lacinia metus. Sed odio magna, adipiscing auctor elementum eu, tempus vitae tellus. Suspendisse varius felis ac ligula pellentesque egestas lobortis mauris hendrerit. Duis vulputate, leo vel lobortis aliquet, dui nunc scelerisque lacus, at convallis ipsum enim et ipsum. Aenean id posuere felis. Nullam bibendum sapien nec dui vehicula ullamcorper. Curabitur placerat auctor erat eget tristique. ", "Lorem ipsum dolor sit amet, consectetur adipiscing elit", Alert.YES|Alert.NO|Alert.OK|Alert.CANCEL);
            }
        ]]>
    </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/2009/11/12/setting-the-accent-color-on-the-mx-alert-control-default-button-in-flex-4/feed/ 3 Styling the emphasized button on an MX Alert control in Flex 4 http://blog.flexexamples.com/2009/09/25/styling-the-emphasized-button-on-a-halo-alert-control-in-flex-4/ http://blog.flexexamples.com/2009/09/25/styling-the-emphasized-button-on-a-halo-alert-control-in-flex-4/#comments Fri, 25 Sep 2009 07:16:08 +0000 Peter deHaan http://blog.flexexamples.com/?p=1909 The following example shows how you can style the emphasized button on a Halo/MX Alert control in Flex 4 by setting the buttonStyleName and emphasizedSkin styles.

<?xml version="1.0" encoding="utf-8"?> <!-- http://blog.flexexamples.com/2009/09/25/styling-the-emphasized-button-on-a-halo-alert-control-in-flex-4/ --> <s:Application name="Halo_Alert_buttonStyleName_emphasizedSkin_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"> <s:controlBarContent> <s:Button id="btn" label="Show Alert" click="btn_click(event);" /> </s:controlBarContent>   <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 style the emphasized button on a Halo/MX Alert control in Flex 4 by setting the buttonStyleName and emphasizedSkin styles.

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/2009/09/25/styling-the-emphasized-button-on-a-halo-alert-control-in-flex-4/ -->
<s:Application name="Halo_Alert_buttonStyleName_emphasizedSkin_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">
    <s:controlBarContent>
        <s:Button id="btn"
                label="Show Alert"
                click="btn_click(event);" />
    </s:controlBarContent>
 
    <fx:Style>
        @namespace s "library://ns.adobe.com/flex/spark";
        @namespace mx "library://ns.adobe.com/flex/halo";
 
        mx|Alert {
            buttonStyleName: alertBtnStyles;
        }
 
        .alertBtnStyles {
            emphasizedSkin: ClassReference("skins.CustomDefaultButtonSkin");
        }
    </fx:Style>
 
    <fx:Script>
        <![CDATA[
            import mx.controls.Alert;
 
            protected function btn_click(evt:MouseEvent):void {
                Alert.show("Alert text", "Alert title", Alert.YES|Alert.NO);
            }
        ]]>
    </fx:Script>
 
</s:Application>

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

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/09/25/styling-the-emphasized-button-on-a-halo-alert-control-in-flex-4/ -->
<s:SparkSkin name="CustomDefaultButtonSkin"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        minWidth="21" minHeight="19"
        alpha.disabled="0.5">
    <!-- states -->
    <s:states>
        <s:State name="up" />
        <s:State name="over" stateGroups="overStates" />
        <s:State name="down" stateGroups="downStates" />
        <s:State name="disabled" stateGroups="disabledStates" />
        <s:State name="selectedUp" stateGroups="selectedStates, selectedUpStates" />
        <s:State name="selectedOver" stateGroups="overStates, selectedStates" />
        <s:State name="selectedDown" stateGroups="downStates, selectedStates" />
        <s:State name="selectedDisabled" stateGroups="selectedUpStates, disabledStates, selectedStates" />
    </s:states>
 
    <fx:Script>
        <![CDATA[
            [Bindable]
            public var cornerRadius:Number = 2;
 
            override protected function updateDisplayList(unscaledWidth:Number, unscaledHeight:Number):void {
                var cr:Number = getStyle("cornerRadius");
 
                if (cornerRadius != cr) {
                    cornerRadius = cr;
                }
                super.updateDisplayList(unscaledWidth, unscaledHeight);
            }
        ]]>
    </fx:Script>
 
    <!-- layer 1: shadow -->
    <s:Rect left="-1" right="-1" top="-1" bottom="-1" radiusX="{cornerRadius}">
        <s:fill>
            <s:LinearGradient rotation="90">
                <s:GradientEntry color="0x000000"
                        color.downStates="0xFFFFFF"
                        alpha="0.01"
                        alpha.downStates="0" />
                <s:GradientEntry color="0x000000"
                        color.downStates="0xFFFFFF"
                        alpha="0.07"
                        alpha.downStates="0.5" />
            </s:LinearGradient>
        </s:fill>
    </s:Rect>
 
    <!-- layer 2: fill -->
    <s:Rect left="1" right="1" top="1" bottom="1" radiusX="{cornerRadius}">
        <s:fill>
            <s:LinearGradient rotation="90">
                <s:GradientEntry color="#FF0000"
                        color.selectedUpStates="#FF0000"
                        color.overStates="#FF0000"
                        color.downStates="#FF0000"
                        alpha="0.85"
                        alpha.selectedOver="1" />
                <s:GradientEntry color="#990000"
                        color.selectedUpStates="#990000"
                        color.over="#990000"
                        color.selectedOver="#990000"
                        color.downStates="#990000"
                        alpha="0.85"
                        alpha.selectedOver="1" />
            </s:LinearGradient>
        </s:fill>
    </s:Rect>
 
    <!-- layer 3: fill lowlight -->
    <s:Rect left="1" right="1" bottom="1" height="9" radiusX="{cornerRadius}">
        <s:fill>
            <s:LinearGradient rotation="90">
                <s:GradientEntry color="0x000000" alpha="0.0099" />
                <s:GradientEntry color="0x000000" alpha="0.0627" />
            </s:LinearGradient>
        </s:fill>
    </s:Rect>
 
    <!-- layer 4: fill highlight -->
    <s:Rect left="1" right="1" top="1" height="9" radiusX="{cornerRadius}">
        <s:fill>
            <s:SolidColor color="0xFFFFFF"
                    alpha="0.33"
                    alpha.selectedUpStates="0.22"
                    alpha.overStates="0.22"
                    alpha.downStates="0.12" />
        </s:fill>
    </s:Rect>
 
    <!-- layer 5: highlight stroke (all states except down) -->
    <s:Rect left="1" right="1" top="1" bottom="1" radiusX="{cornerRadius}" excludeFrom="downStates">
        <s:stroke>
            <s:LinearGradientStroke rotation="90" weight="1">
                <s:GradientEntry color="#FF0000" alpha.overStates="0.22" alpha.selectedUpStates="0.33" />
                <s:GradientEntry color="#990000" alpha.overStates="0.22" alpha.selectedUpStates="0.33" />
            </s:LinearGradientStroke>
        </s:stroke>
    </s:Rect>
 
    <!-- layer 6: highlight stroke (down state only) -->
    <s:Rect left="1" top="1" bottom="1" width="1"
            includeIn="downStates, selectedUpStates, selectedOver">
        <s:fill>
            <s:SolidColor color="0x000000" alpha="0.07" />
        </s:fill>
    </s:Rect>
    <s:Rect right="1" top="1" bottom="1" width="1"
            includeIn="downStates, selectedUpStates, selectedOver">
        <s:fill>
            <s:SolidColor color="0x000000" alpha="0.07" />
        </s:fill>
    </s:Rect>
    <s:Rect left="2" top="1" right="2" height="1"
            includeIn="downStates, selectedUpStates, selectedOver">
        <s:fill>
            <s:SolidColor color="0x000000" alpha="0.25" />
        </s:fill>
    </s:Rect>
    <s:Rect left="1" top="2" right="1" height="1"
            includeIn="downStates, selectedUpStates, selectedOver">
        <s:fill>
            <s:SolidColor color="0x000000" alpha="0.09" />
        </s:fill>
    </s:Rect>
 
    <!-- layer 7: border - put on top of the fill so it doesn't disappear when scale is less than 1 -->
    <s:Rect left="0" right="0" top="0" bottom="0" width="69" height="20" radiusX="{cornerRadius}">
        <s:stroke>
            <s:LinearGradientStroke rotation="90" weight="1">
                <s:GradientEntry color="0x000000"
                        alpha="0.5625"
                        alpha.down="0.6375"
                        alpha.selectedStates="0.6375" />
                <s:GradientEntry color="0x000000"
                        alpha="0.75"
                        alpha.down="0.85"
                        alpha.selectedStates="0.85" />
            </s:LinearGradientStroke>
        </s:stroke>
    </s:Rect>
 
</s:SparkSkin>

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/2009/09/25/styling-the-emphasized-button-on-a-halo-alert-control-in-flex-4/feed/ 3 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 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 Creating a self-closing Alert control in Flex http://blog.flexexamples.com/2009/04/08/creating-a-self-closing-alert-control-in-flex/ http://blog.flexexamples.com/2009/04/08/creating-a-self-closing-alert-control-in-flex/#comments Thu, 09 Apr 2009 04:39:02 +0000 Peter deHaan http://blog.flexexamples.com/2009/04/08/creating-a-self-closing-alert-control-in-flex/ The following example shows how you can create a self-closing Flex Alert control by creating a timer and using the static PopUpManager.removePopUp() method to remove the Alert after a certain time period.

Full code after the jump.

View MXML

<?xml version="1.0" encoding="utf-8"?> <!-- http://blog.flexexamples.com/2009/04/08/creating-a-self-closing-alert-control-in-flex/ --> <mx:Application name="Alert_PopUpManager_removePopUp_test" xmlns:mx="http://www.adobe.com/2006/mxml" backgroundColor="white" initialize="init();"> <mx:Script> <![CDATA[ [...]]]> The following example shows how you can create a self-closing Flex Alert control by creating a timer and using the static PopUpManager.removePopUp() method to remove the Alert after a certain time period.

Full code after the jump.

View MXML

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/04/08/creating-a-self-closing-alert-control-in-flex/ -->
<mx:Application name="Alert_PopUpManager_removePopUp_test"
        xmlns:mx="http://www.adobe.com/2006/mxml"
        backgroundColor="white"
        initialize="init();">

    <mx:Script>
        <![CDATA[
            import mx.controls.Alert;
            import mx.events.CloseEvent;
            import mx.managers.PopUpManager;

            private var alrt:Alert;
            private var alrtTimer:Timer;

            private function init():void {
                alrtTimer = new Timer(5000, 1);
                alrtTimer.addEventListener(TimerEvent.TIMER_COMPLETE, removeAlert);
            }

            private function showAlert():void {
                alrt = Alert.show("I'm an Alert control and I will close in 5 seconds unless closed by a user.", "Self closing Alert", Alert.OK, this, alrt_close);
                alrtTimer.reset();
                alrtTimer.start();
            }

            private function alrt_close(evt:CloseEvent):void {
                alrtTimer.stop();
                lbl.text = "Closed by user.";
            }

            private function removeAlert(evt:TimerEvent):void {
                PopUpManager.removePopUp(alrt);
                lbl.text = "Removed by application.";
            }
        ]]>
    </mx:Script>

    <mx:Button label="Show Alert" click="showAlert();" />
    <mx:Label id="lbl" />

</mx:Application>
 
]]> http://blog.flexexamples.com/2009/04/08/creating-a-self-closing-alert-control-in-flex/feed/ 6 Styling Alert controls in Flex using the StyleManager class and setStyle() method (Flex 4 Edition) http://blog.flexexamples.com/2009/04/06/styling-alert-controls-in-flex-using-the-stylemanager-class-and-setstyle-method-spark-edition/ http://blog.flexexamples.com/2009/04/06/styling-alert-controls-in-flex-using-the-stylemanager-class-and-setstyle-method-spark-edition/#comments Tue, 07 Apr 2009 06:59:14 +0000 Peter deHaan http://blog.flexexamples.com/2009/04/06/styling-alert-controls-in-flex-using-the-stylemanager-class-and-setstyle-method-spark-edition/ In a previous example, “Styling Alert controls in Flex using the StyleManager class and setStyle() methods”, we saw how to style a Flex Alert control using the static StyleManager.getStyleDeclaration() method, and the setStyle() method.

The following example shows how you can do the same thing using the beta Flex 4 SDK by passing a [...]]]> In a previous example, “Styling Alert controls in Flex using the StyleManager class and setStyle() methods”, we saw how to style a Flex Alert control using the static StyleManager.getStyleDeclaration() method, and the setStyle() method.

The following example shows how you can do the same thing using the beta Flex 4 SDK by passing a fully qualified class name to the static getStyleDeclaration() method.

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/2009/04/06/styling-alert-controls-in-flex-using-the-stylemanager-class-and-setstyle-method-spark-edition/ -->
<s:Application name="MX_Alert_chromeColor_test"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        xmlns:mx="library://ns.adobe.com/flex/mx"
        initialize="init();">
 
    <fx:Script>
        <![CDATA[
            import mx.controls.Alert;
 
            private var alert:Alert;
            private var alertCSS:CSSStyleDeclaration;
 
            private function init():void {
                alertCSS = styleManager.getStyleDeclaration("mx.controls.Alert");
            }
 
            private function showAlert(color:Object):void {
                alertCSS.setStyle("modalTransparencyColor", color);
                alertCSS.setStyle("chromeColor", color);
                alert = Alert.show("The quick brown fox jumps over the lazy dog.", "Alert title");
            }
        ]]>
    </fx:Script>
 
    <s:controlBarContent>
        <s:Button label="Red"
                  chromeColor="red"
                  click="showAlert('red');" />
        <s:Button label="Orange"
                  chromeColor="haloOrange"
                  click="showAlert('haloOrange');" />
        <s:Button label="Yellow"
                  chromeColor="yellow"
                  click="showAlert('yellow');" />
        <s:Button label="Green"
                  chromeColor="haloGreen"
                  click="showAlert('haloGreen');" />
        <s:Button label="Blue"
                  chromeColor="haloBlue"
                  click="showAlert('haloBlue');" />
    </s:controlBarContent>
 
</s:Application>

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/2009/04/06/styling-alert-controls-in-flex-using-the-stylemanager-class-and-setstyle-method-spark-edition/feed/ 4 Disabling an Alert control in Flex http://blog.flexexamples.com/2008/10/17/disabling-an-alert-control-in-flex/ http://blog.flexexamples.com/2008/10/17/disabling-an-alert-control-in-flex/#comments Sat, 18 Oct 2008 06:56:47 +0000 Peter deHaan http://blog.flexexamples.com/2008/10/17/disabling-an-alert-control-in-flex/ The following example shows how you can disable an Alert control for a specified number of milliseconds before the user can dismiss the dialog by setting the enabled property.

Full code after the jump.

View MXML

<?xml version="1.0" encoding="utf-8"?> <!-- http://blog.flexexamples.com/2008/10/17/disabling-an-alert-control-in-flex/ --> <mx:Application name="Alert_enabled_test" xmlns:mx="http://www.adobe.com/2006/mxml" layout="vertical" verticalAlign="middle" backgroundColor="white"> <mx:Script> <![CDATA[ import mx.controls.Alert; [...]]]> The following example shows how you can disable an Alert control for a specified number of milliseconds before the user can dismiss the dialog by setting the enabled property.

Full code after the jump.

View MXML

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2008/10/17/disabling-an-alert-control-in-flex/ -->
<mx:Application name="Alert_enabled_test"
        xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white">

    <mx:Script>
        <![CDATA[
            import mx.controls.Alert;
            import mx.managers.PopUpManager;

            private const ENABLE_DELAY:uint = 3000; // 3 seconds

            private var a:Alert;

            private function showAlert():void {
                a = Alert.show("You have been logged out.", "Goodbye");
                a.enabled = false;
                setTimeout(enableAlert, ENABLE_DELAY, a);
            }

            private function enableAlert(target:Alert):void {
                target.enabled = true;
                // PopUpManager.removePopUp(target);
            }
        ]]>
    </mx:Script>

    <mx:Button id="button"
            label="Logout"
            click="showAlert();" />

</mx:Application>

View source is enabled in the following example.

Update (10/18/2007): If you don’t want to disable the entire Alert control, you can loop over the internal button array and disable each of the button controls individually, as seen in the following example:

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2008/10/17/disabling-an-alert-control-in-flex/ -->
<mx:Application name="Alert_enabled_test"
        xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white">

    <mx:Script>
        <![CDATA[
            import mx.events.FlexEvent;
            import mx.utils.ObjectUtil;
            import mx.controls.Alert;
            import mx.managers.PopUpManager;

            private const ENABLE_DELAY:uint = 3000; // 3 seconds

            private var a:Alert;

            private function showAlert():void {
                a = Alert.show("You have been logged out.", "Goodbye");
                toggleButtons(a, false);
                setTimeout(enableAlert, ENABLE_DELAY, a);
            }

            private function enableAlert(target:Alert):void {
                toggleButtons(target, true);
            }

            private function toggleButtons(target:Alert, isEnabled:Boolean):void {
                var buttonArr:Array = target.mx_internal::alertForm.mx_internal::buttons;
                var btn:Button;
                for each (btn in buttonArr) {
                    btn.enabled = isEnabled;
                }
            }
        ]]>
    </mx:Script>

    <mx:Button id="button"
            label="Logout"
            click="showAlert();" />

</mx:Application>

Since this example uses the mx_internal namespace, you can’t always depend on this behavior to work in future versions of the Flex SDK. Use at your own risk.

 
]]> http://blog.flexexamples.com/2008/10/17/disabling-an-alert-control-in-flex/feed/ 5 Creating a custom creation complete effect on a Flex Alert control (redux) http://blog.flexexamples.com/2008/09/15/creating-a-custom-creation-complete-effect-on-a-flex-alert-control-redux/ http://blog.flexexamples.com/2008/09/15/creating-a-custom-creation-complete-effect-on-a-flex-alert-control-redux/#comments Tue, 16 Sep 2008 04:12:18 +0000 Peter deHaan http://blog.flexexamples.com/2008/09/15/creating-a-custom-creation-complete-effect-on-a-flex-alert-control-redux/ In a previous example, “Creating a custom creation complete effect on a Flex Alert control”, we saw how you could specify an effect which gets played when an Alert control is displayed by setting the Alert control’s creationCompleteEffect style.

The following example shows how you can apply a parallel Fade/Move effect when the Alert [...]]]> In a previous example, “Creating a custom creation complete effect on a Flex Alert control”, we saw how you could specify an effect which gets played when an Alert control is displayed by setting the Alert control’s creationCompleteEffect style.

The following example shows how you can apply a parallel Fade/Move effect when the Alert control is created by setting the the creationCompleteEffect effect/style in MXML and ActionScript.

Full code after the jump.

View MXML

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2008/09/15/creating-a-custom-creation-complete-effect-on-a-flex-alert-control-redux/ -->
<mx:Application name="Alert_creationCompleteEffect_test_3"
        xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white">

    <mx:Script>
        <![CDATA[
            import mx.controls.Alert;
            import mx.effects.easing.*;

            private function showAlert():void {
                var a:Alert = Alert.show("Nam vel nunc sed arcu fringilla fringilla. Cras dapibus nunc ut nisi.\\n" +
                        "Nullam porttitor mi et mauris.\\n" +
                        "Suspendisse hendrerit, turpis eu ornare suscipit, nulla sem tempus lorem,\\n" +
                        "sit amet semper nibh mi cursus neque.\\n" +
                        "Nulla vel purus. Sed a nulla. Quisque venenatis laoreet mi.",
                        "Lorem ipsum dolor sit amet, consectetuer adipiscing elit");
                a.isPopUp = false;
                a.cacheAsBitmap = true;
            }
        ]]>
    </mx:Script>

    <mx:Style>
        @font-face {
            src: local("Verdana");
            fontFamily: VerdanaEmbedded;
        }

        @font-face {
            src: local("Verdana");
            fontFamily: VerdanaEmbedded;
            fontWeight: bold;
        }

        Alert {
            fontFamily: VerdanaEmbedded;
            creationCompleteEffect: alertCreationCompleteEffect;
        }
    </mx:Style>

    <mx:Parallel id="alertCreationCompleteEffect">
        <mx:Fade duration="500" />
        <mx:Move yFrom="0"
                easingFunction="Elastic.easeOut"
                duration="1000" />
    </mx:Parallel>

    <mx:ApplicationControlBar dock="true">
        <mx:Button id="button"
                label="Click me"
                click="showAlert();" />
    </mx:ApplicationControlBar>

</mx:Application>

View source is enabled in the following example.

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/2008/09/15/creating-a-custom-creation-complete-effect-on-a-flex-alert-control-redux/ -->
<mx:Application name="Alert_creationCompleteEffect_test_3"
        xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white"
        initialize="init();">

    <mx:Script>
        <![CDATA[
            import mx.containers.ApplicationControlBar;
            import mx.controls.Alert;
            import mx.controls.Button;
            import mx.effects.easing.*;
            import mx.effects.Fade;
            import mx.effects.Move;
            import mx.effects.Parallel;

            [Embed(systemFont="Verdana",
                    fontName="VerdanaEmbedded",
                    fontWeight="normal",
                    mimeType="application/x-font")]
            private const verdanaEmbeddedNormal:Class;

            [Embed(systemFont="Verdana",
                    fontName="VerdanaEmbedded",
                    fontWeight="bold",
                    mimeType="application/x-font")]
            private const verdanaEmbeddedBold:Class;

            public var alertCreationCompleteEffect:Parallel;

            private var button:Button;

            private function init():void {
                var fader:Fade = new Fade();
                fader.duration = 500;

                var mover:Move = new Move();
                mover.yFrom = 0;
                mover.easingFunction = Elastic.easeOut;
                mover.duration = 1000;

                alertCreationCompleteEffect = new Parallel();
                alertCreationCompleteEffect.addChild(fader);
                alertCreationCompleteEffect.addChild(mover);

                button = new Button();
                button.label = "Click me";
                button.addEventListener(MouseEvent.CLICK, button_click);

                var appControlBar:ApplicationControlBar;
                appControlBar = new ApplicationControlBar();
                appControlBar.dock = true;
                appControlBar.addChild(button);
                addChildAt(appControlBar, 0);

                var alertStyles:CSSStyleDeclaration;
                alertStyles = StyleManager.getStyleDeclaration("Alert");
                alertStyles.setStyle("fontFamily", "VerdanaEmbedded");
            }

            private function button_click(evt:MouseEvent):void {
                showAlert();
            }

            private function showAlert():void {
                var a:Alert = Alert.show("Nam vel nunc sed arcu fringilla fringilla. Cras dapibus nunc ut nisi.\\n" +
                        "Nullam porttitor mi et mauris.\\n" +
                        "Suspendisse hendrerit, turpis eu ornare suscipit, nulla sem tempus lorem,\\n" +
                        "sit amet semper nibh mi cursus neque.\\n" +
                        "Nulla vel purus. Sed a nulla. Quisque venenatis laoreet mi.",
                        "Lorem ipsum dolor sit amet, consectetuer adipiscing elit");
                a.setStyle("creationCompleteEffect", alertCreationCompleteEffect);
                a.isPopUp = false;
                a.cacheAsBitmap = true;
            }
        ]]>
    </mx:Script>

</mx:Application>
 
]]> http://blog.flexexamples.com/2008/09/15/creating-a-custom-creation-complete-effect-on-a-flex-alert-control-redux/feed/ 6