This example shows how you can have Images in your spark TextArea and set their float and paddingLeft/paddingRight properties:
<s:RichEditableText id="myRET1" width="300">
<s:textFlow>
<s:TextFlow columnWidth="290">
<s:p id="p1">Images in a flow are a good thing. For example, here is a float.
<s:img id="image1" float="none" source="#Embed(source='../assets/bulldog.jpg')" paddingRight="10" paddingTop="10" paddingBottom="10" paddingLeft="10">
</s:img>
Don't you agree? It should show on the left. If it doesn't show up on the left, then it is a bug. You can submit bugs at http://bugs.adobe.com/jira/. You can set how the float is positioned within
the paragraph by using the ComboBox below. You can select left, right, start, end, or none. This example does not use the clearFloats property. That is in a different example.</s:p>
</s:TextFlow>
</s:textFlow>
</s:RichEditableText>
Is it possible to specify the image's float/padding via Flex's CSS?
yes it's possible to specify the image via css :
1)create a skin contains this image and those properties(padding)
2)create file css contains name space of component and call class reference (the class passed as parameter skins)
3)define in file mxml the style name equal the name space specified in steps 1
Related
My first steps with Flex (currently using Flex 3) and I want to define 2 states where in the first I have a list and a panel with some button bellow it. When clicking one of the buttons in that panel, I'm expecting to change the state to the "ListState". How should I define which component bellong to which state in this case?
How can I also animate the transition between them by enlarging the list and "move" the panel down outside the application?
The expected behavior is presented in the following picture:
Thanks in advance
You can achieve This without States. As I have understood your task. I will suggest you to use Canvas with 100% height and width. inside canvas You use List and Panel
List will
<mx:List id="List" height="{cnvas.height-panel.height}" width="100%"/>
panel will <mx:Pannel id="panel" height="300" y="{cnvas.height-panel.height}" width="100%" paddingTop="10">
Now When you click button set slideUP.play() and pannel.height=0.
Addition to this you have to set annimation:
<mx:AnimateProperty id="slideUP" target="{panel}" property="y"
fromValue="{cnvas.height-panel.height}" toValue="{cnvas.height}" duration="400" />
I am displaying some HTML text in an Adobe AIR Application that I do not want the user to be able to cut and paste. How do I make the HTML control disallow highlighting of the HTML without disabling the ScrollBars. mouseChildren=false works but disables the scrollbars which is unacceptable. Right now I have:
<mx:HTML location="http://dexter/preview.html" width="100%" height="100%" id="PreviewArea" x="0" y="0" tabEnabled="false" tabChildren="false" focusEnabled="false" focusRect="null"/>
But it's not working properly either.
I have also tried overlaying a disabled transparent text control over the top of the HTML component, but the user is still able to tab to the HTML and use the keyboard controls to copy the text to the clipboard.
Any hints?
You probably have to extend the HTML Component. Make the scroll bars, if applicable, usable, but apply set mouseEnabled, mouseFocusEnabled, mouseChildren, and focusEnabled to false on the inner display.
Alternatively, you could wrap the HTML component in a canvas. Set the HTML Component to it's measured height and measured width. Set the HTML Component to be 'unusable' with the above properties, but make the canvas usable.
Doesn't the HTML component display renderered HTML; not HTML Text? If you're displaying HTML Text, then you can use the TextArea and set editable and selectable to false.
I want my custom button to look like the button sample below.
More specifically, I want the width of the button to be determined by the width of the largest word in the label (i.e. width of "Elongated" in my example). The label must wrap, not truncate.
And I want only one pixel between the top edge of the icon and my button's top edge.
I have tried lots of things but to no avail so far. I have reduced the horizontalGap and verticalGap to zero and padding to zero. But still nothing. Please help.
Here's what I have right now:
<mx:Button top="0" cornerRadius="2" paddingLeft="0" paddingRight="0" leading="0" letterSpacing="0" paddingTop="0" paddingBottom="0" verticalGap="0" horizontalGap="0" textAlign="center" labelPlacement="bottom" icon="{MyIcon}" height="60" width="75" label="Elongated Label" fontSize="10" />
That's not at all simple.
You will need to create your own button,
public class Mybutton extends Button {...}
override createChildren and set the word wrap of the IUITextField used for the label to true.
override measure and use your own line metrics to determine the width that the button should be. If you get the measure right, the button will lay itself out properly.
I don't have a dev environment in front of me at the moment, but something along these lines should work:
Set truncateToFit property of the Label to false (OR use a TextField with wordWrap set to true - I think this should keep the words together as much as possible).
I haven't had the need to use any of the above yet, and hopefully you haven't tried them yet because it would be an easy solution to a part of your problem. Without any code, I'm not sure why padding didn't work, but maybe it's something to do with the word truncation.
As an alternative, why not use a Button, embed or specify a source for your icon and decide where to place the text by specifying the object's labelPlacement property?
EDIT: Since there's no property in Button about wordWrap, as they would recommend in the Adobe Flex forums for such questions regarding sizing based on content where there is no automatic feature to do that, you have to find the longest word and adjust the width of the button (i.e.: in the creationComplete event). Experimenting to find the font to pixel ratio would be my best bet (or you can use a Monospace font where all the characters are given the same space thereby simplifying the estimation):
creationComplete="event.target.width=returnMyWidth();"
As for the padding, it may be related to the custom width that you had set or it may be from embedding the image automatically setting a padding by being included - I'm not really sure, so it would be good if someone can offer a comment based on experience with this.
I see that Flex3 has a class called ApplicationControlBar dedicated to "holding components that provide global navigation and application commands." (quoted from the langref). The question is: is there an advantage of using this class instead of just adding a plain HBox with a greyish background, or is it just a matter of taste?
In my current code, I use the following box:
<mx:HBox verticalAlign="middle" horizontalGap="5" backgroundColor="0xCCCCCC"
width="100%" paddingTop="5" paddingRight="5" paddingBottom="5"
paddingLeft="5">
Granted, this requires explicitly specifying a few attributes, but other than that?
ApplicationControlBar is essentially an HBox with both scroll policies set to false and a transparent background. The only other feature it offers is the ability to be docked. From the Livedocs:
Docked mode: The bar is always at the top of the application's drawing area and becomes part of the application chrome. Any application-level scroll bars don't apply to the component, so that it always remains at the top of the visible area, and the bar expands to fill the width of the application. To create a docked bar, set the value of the dock property to true.
If you look at the source for ApplicationControlBar and Application.dockControlBar you'll see that when docked=true the bar is added to rawChildren instead of children which is what allows it to "ignore" scollbars and such.
In addition to the previous answer I can add, that it's possible to set the gradient background to the ApplicationControlBar, which is not allowed to the HBox, if you're not using the special border type, of course :)
But even with HBox you can still draw your own gradient background without setting the border style.
For loading time considerations I am using a runtime css file in my Flex Application.
I am having a problem with a multi line text control :
<mx:Text id="txtDescription" selectable="false"
styleName="imageRolloverButtonTextDark" width="100%" textAlign="center"
text="{_rolloverText}"/>
When my CSS stylesheet has loaded the text style correctly changes, but the height is not recalculated. It appears to be just a single line field.
FYI: The control is not actually visible, and triggered by a rollover. So I dont really care if the stylesheet hasnt loaded and they get standard system text. I jsut want it to be the correct height when it has been loaded.
Per the Adobe documentation for Text
Sizing a Text control
Flex sizes the
Text control as follows:
If you specify a pixel value for both
the height and width properties, any
text that exceeds the size of the
control is clipped at the border.
If you specify an explicit pixel
width, but no height, Flex wraps the
text to fit the width and calculates
the height to fit the required number
of lines.
If you specify a percentage-based
width and no height, Flex does not
wrap the text, and the height equals
the number of lines as determined by
the number of Return characters.
If you specify only a height and no
width, the height value does not
affect the width calculation, and Flex
sizes the control to fit the width of
the maximum line.
As a general rule, if you have long
text, you should specify a pixel-based
width property. If the text might
change and you want to ensure that the
Text control always takes up the same
space in your application, set
explicit height and width properties
that fit the largest expected text.
So the trick I've used to deal with this is to have the Text get its width via a binding expression from whatever container limits it's width, typically the immediate parent.
e.g.
<mx:Canvas id="box" width="100%" backgroundColor="Red">
<mx:Text width="{box.width}" text="{someReallyLongString}" />
</mx:Canvas>
For any one else who has this problem, The solution I found was to create a custom component extending the mx.controls.Text
and then override the styleChange() Method, and explicitly call the invalidateDisplayList() method for the text field once the style has been applied.
It should be called automatically when the styleis changed but no...for some reason in flex 3.5 it is not.
public class TextObject extends Text { //...
override public function styleChanged(styleProp:String):void { invalidateDisplayList(); }
}
Hope that save some one all the time I lost on it.
Could you use a fixed pixel width instead of 100%? I've had issues with 100% being wrongly calculated on dynamic text controls before.