Flex :: Calculating Spark TextArea Width?
Nov 3, 2010
I am treating a spark TextArea as text input(by setting heightInLines="1"). The TextArea is part of an mxml component and I want to resize the component when the text is changed.
I haven't been able to use textArea.measureaText(textArea.text) to get line metrics and use it. I get this error "Parameter antiAliasType must be non-null."
Is there any way to get the width of a TextArea which it is going to consume at runtime for a particular string or a particular TextFlow?
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Jul 19, 2010
The problem, as you can see, is that the text (height and width) is nothing like the Height and Width of the compoent (Spark TextArea) that I have set via the Main.mxml file in Flex 4. This is pissing me off so much because nobody can tell me why this is happening, or how to fix it. Text is dynamically added to the TextArea as people send messages in the server, hence the valueCommit line.I don't understand this, because I know it's not the fault of my fx:Script. I know this, because when I switch over to the Design tab of Adobe Flex Builder 4; the lines are just as messed up as in the screen shot.[code]
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May 26, 2010
I'm trying to calculate how WIDE to make my button, based on the text that it will contain, and when I try to google for how to calcuate something as simplistic as the WIDTH OF SOME TEXT, I go cross-eyed just trying to wade through apparently nonsensical esoteric counter-intuitive voodoo. how I would write a function like this:
public function HowWideWouldThisTextBeIfItWereInThisButton(Text:String,Container:Button):int {
...
}
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May 28, 2011
I'm extending the Flex 3 panel component. I need to figure out the width of the title's text. Because, title is a private variable in panel, I can't access it via title.width.I know the font, fontsize (14), and length of the title (which will vary). Knowing this info is there a way to calculate how many pixels wide the title is?
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Apr 15, 2011
I have done lots of searching on this subject, but it seems what I am finding is either out of date or just does not seem to work.With TextFields in the past, you could set the TextField to a certain width, set wordWrap to true and you would end up with a textfield that changed height according to the text you added.Now I am trying to do this with either the Spark TextArea or RichText.I tried this HeightInLines = NAN, but that seems to be out of date.I also tried this routine:
var totalHeight:uint = 10;
this.validateNow();
var noOfLines:int = this.mx_internal::getTextField().numLines;[code]....
But the mx_internal is not in the Spark components.I am trying to do this with AS3, not MXML.
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Jun 24, 2011
Is it possible to get content of each line from spark's TextArea or RichText?
What I want to achieve it to split textarea's (or richtext) content into rows and modify some of them.
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May 19, 2010
I have imported a Html text into textarea using Textconverter and it works well, but I have a problemI need to mark with "image not found" if and image inside into imported html isn't more online or simply don't exist
var string:String = '<img src="elvis.gif" />';
aTextArea.textFlow = TextConverter.importToFlow(string, TextConverter.TEXT_FIELD_HTML_FORMAT);
[code]........
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Jul 24, 2010
The Below code is running well...
<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/mx" >
[Code].....
Then htmlText doesn't support Spark Textarea. Hence produces error. How does one go about displaying HTML formatted text with spark Text Area Property.
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Dec 27, 2010
I want to get the line count of the spark text area content.
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Jan 24, 2011
I'm trying to auto-resize a Spark TextArea using Flex Hero but having no luck.
EDIT: To clarify, I want to auto-resize the TextArea when typing, so there's never a scroll bar.
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Feb 21, 2011
I want to make the background appear as if a modal window was opened but, instead of a window, I want to use Spark TextArea.. Is this possible?
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Jan 30, 2012
I'm trying to show a horizontal line under each row of text in a Spark TextArea. I want to give the text area the look of legal paper.
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Feb 6, 2012
I can't seem to get TextArea to render any embedded fonts in project. I've searched online and have found a couple of instances of this issue but no solutions.
I have a few fonts embedded with my app. Spark Label & the mx:TextArea (switching embedAsCFF to 'false') will display them correctly so I know they're embedded OK. I have the fontFamily value in a binding but I even tried just instantiating a new TextArea then assigning one the the embedded fonts via the fontFamily style and have had no luck.
/* In my CSS file */
@font-face {
src:url("assets/fonts/UbuntuMono/UbuntuMono-Regular.ttf");
fontFamily: UbuntuMono;
[Code].....
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Aug 23, 2010
I have a Spark TextArea:
<s:TextArea id="editor">
<s:textFlow>
<s:TextFlow id="_tf" >
<s:p>Lorem ipsum etc.</s:p>
[code]...
But still no joy in inserting into the middle. Also, the above code wouldn't replace highlighted text, but that's not the real concern here.Based on Eugene's link the key to this is EditManager.The following code represents the working updated function:
protected function imageBtn_clickHandler(evt:MouseEvent):void {
var em:EditManager = editor.textFlow.interactionManager as EditManager;
em.selectRange(editor.selectionAnchorPosition, editor.selectionActivePosition);
[code]...
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Feb 16, 2011
I am writing a flex application and I have two Spark TextAreas. I want to create an EventListener so that when the user clicks on a text area, the text inside the TextArea is cleared:
this.addEventListener(FocusEvent.FOCUS_IN, onFocusIn);
private function onFocusIn(ev:FocusEvent):void {
if (this._showsCaption) {
[Code]....
Currently I can implement this with a Spark TextInput, but when I click on the TextArea, the focusIn event never fires and the onFocusIn() handler is never called.
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Sep 6, 2011
The old method for the mx:TextArea no longer works. Specifically:
myMxTextArea.verticalScrollPosition = myMxTextArea.maxVerticalScrollPosition;
I've found this method for Spark but seems a bit kludgy:
mySparkTA.scrollToRange(mySparkTA.text.length-1, mySparkTA.text.length);
Is there a more straightforward way to do this?
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May 5, 2011
I'm trying to remove all line breaks from the text that is pasted into the Spark TextArea.
I have:
<s:TextArea id="inputSearchQuery"
width="100%" height="22"
[code].....
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Jun 9, 2011
I have a simple TextArea
[Code]..
Everything works as expected, but the undo buffer is reset / stops at the point that a tab was inserted.Is there a way to ensure that the undo buffer remains in tact even with the tab inserted
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Dec 22, 2010
I am attempting to dynamically change the color of a subset/portion of text in a Spark TextArea control. Using the MX-based TextArea, I could leverage the mx.controls.textClasses.TextRange type and change the color directly as follows:
TextRange tr = new TextRange(theTextAreaControl, false, beginIndex, endIndex);
tr.color = somePredefindColor;
Input Parameters to TextRange constructor:
1st argument: The TextArea control that will provide access to the underlying textField property
2nd argument: Indicates the TextRange will not modify the content of the TextArea
3rd argument: The beginning index position in the TextArea text string
4th argument: The ending index position in the TextArea text string
How would I go about doing this for a Spark-based TextArea control? I am looking to dynamically change the font color for a range of text, not just the entire TextArea AND I cannot statically specify the font color. The problem I run into when trying to re-use the TextRange type is that the 1st argument is expected to provide the textField property, which is currently not on the Spark-based TextArea control. I thought about extending the Spark-based TextArea control to provide this accessor property but that seems like overkill and is probably not the best approach.
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Mar 21, 2011
How do you scroll an editable TextArea (Flex Hero) on a touch device? I am referring to the situation where the text does not fit in the TextArea height.When I try to tap and drag the text gets selected and not scrolled... Am I missing a something here? I am using verticalScrollPolicy = on (also tried auto).I am testing the code in the Blackberry Playbook simulator (my targeted device for my app).
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Aug 5, 2011
I need to set the text of a spark label and then position such label along the x axis depending on its width. Unfortunately, it seems that the width of the label does not update right away and thus the positioning will fail. I can listen to updateComplete events on the label and update its position then, but that means repositioning the label a lot more often than I would like (updateComplete fires off a lot more often than upon changing width). how to properly handle what would appear to be a trivial task?
Here's a code snippet that shows what I described above. If you press the button you will see 3 traces: the label width before changing its text, right after setting its text, and when the label is done updating itself. Would love to know if there's a way to get the correct width without having to listen to updateComplete events... The button and the VGroups are just there to run the example
<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
[Code].....
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Jun 30, 2010
Is it possible to change the width of an insert TAB character in a Flex TextArea?I'm capturing FocusEvent.KEY_FOCUS_CHANGE events and manually inserting a " " into a text area styled with an embedded monospace font. By default, the TABs are being displayed two and a half monospace characters wide... I need them to display five monospace characters wide
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Sep 11, 2010
How do I set the individual button sizes in a Spark ButtonBar? It used to be something like[code]...
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Nov 29, 2010
in flash builder 4 how do i use the skinning option to make sure the popup dropdown list changes it's width to fit the longest item in the list?(the prompt area - the component when it is closed - should not change it's width)
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Dec 21, 2010
As textWidth property is no more accessible in spark textinput how we can get that property ?
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Apr 28, 2011
I have been given the seemingly simply task of resizing a Group container by setting width and height explicitly in response to user interaction. However, changing these values have no effect on the size of the container at all. Changing scaleX and/or scaleY will change the size of the container just fine, but this is not the behavior I am after.I have tried overriding updateDisplayList() to set a specific width and height, but this has not yielded the desired results.
<?xml version="1.0" encoding="utf-8"?>
<s:Group xmlns:fx="ns.adobe.com/mxml/2009" ;
xmlns:s="library://ns.adobe.com/flex/spark"
[code]......
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Oct 11, 2011
Suppose I have a (Spark) label. What is the best way to find the length of the text in it? I looked at the myLable.measureText("bla bla") method but it says: To measure text in Spark components, get the measurements of a spark.components.Label or spark.components.RichTextfter looking around I cannot find what this is refering to. I tried myLabel.measureWidth() but this does not return anything usefull (it frequently returns zero). Note: I am explicitly setting the width like this:<s:Lable width="{globalWidthVariable"} .../>If the text overflows I would like to increse the globalWidthVariable to the size of the text.
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May 11, 2011
I know this question has been asked before but the other solutions didn't work for me quite well. here's my sample application.
<?xml version="1.0" encoding="utf-8"?>
<s:WindowedApplication xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
[code].....
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Mar 20, 2011
Trying to add some html to a TextArea in Mobile Flex 4.5 but keep getting the error:
"1180: Call to a possibly undefined method StyleableTextField."
For the following line:
StyleableTextField(txtMyText.textDisplay).htmlText = "sample <b>text</b>";
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May 5, 2011
I am using a spark textarea which has a dynamic feed from a database I am saving a template using TextConverter.export(editor.textFlow,TextConverter.TEXT_FIELD_HTML_FO RMAT,ConversionType.STRING_TYPE).toString(); and saving it via php its a longtext in mysql database. I am not using stripslashes or muniplating the text in any way and looking at the data in the database all the whitespace is still there.
When a users selects the template to bring it back into the textarea I am using TextConverter.importToFlow(repairedst,TextConverter.TEXT_FIELD_HTML_F ORMAT);
and all my spacing is gone.
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