I'm new to vaadin. I came across with a bug that full name is not visible in twin-column component's values. I have very long names inside the left side of the twin-column. I increased the width of the component much as I can. But still some lines are there that not visible full name.
I tried to add some css, even that didn't work.
.v-select-twincol-options .v-select-twincol-break-word{word-wrap: break-word;}
I tried with this css line. Any wrong in here? Or any idea to solve this. Please help me on this..
Thank you in advance.
private TwinColSelect createTemplateSelectTwinColumn()
{
TwinColSelect twinColSelect = new TwinColSelect("Related Templates");
twinColSelect.setNullSelectionAllowed(true);
twinColSelect.setMultiSelect(true);
twinColSelect.setImmediate(true);
twinColSelect.setSizeFull();
Collection<File> templates = getTemplates();
Collections.sort((List<File>) templates, new Comparator<File>()
{
#Override
public int compare(final File f1, final File f2)
{
return f1.getName().compareTo(f2.getName());
}
});
for (File file : templates)
{
twinColSelect.addItem(file.getNodeId());
twinColSelect.setItemCaption(file.getNodeId(), file.getName());
}
return twinColSelect;
}
Method where I'm creating the twinColumn inside a FormLayout
Vaadin's TwinColSelect eventually results in two standard HTML option list controls in the DOM; see the DOM of this example: http://demo.vaadin.com/book-examples/book/#component.select.twincolselect.basic
word-wrap is, however, not possible on option list items.
Consider creating your "own" TwinColSelect from two Vaadin tables. Vaadin tables are much more flexible regarding CSS styling.
Related
I would like to set the caret color for all JavaFX text inputs (e.g. TextField, TextArea, the ones in ComboBox:editable, DatePicker, etc...)
I found this Stackoverflow answer: How to change the caret color in JavaFX 2.0?
... and an example on GitHub.
The first one does change the text and the caret color which is not good. The second one extends the TextFieldSkin class, which is already better, but how can I use it in CSS?
Any help is appreciated.
UPDATE 1:
I found the following CSS style property for JavaFX controls: -fx-skin.
This would theoretically allow me to set a custom skin class (-fx-skin: "package.MySkin";), however, the skin class just isn't used!
The class looks like the following:
package gui;
…
public class MyTextFieldSkin extends TextFieldSkin
{
public MyTextFieldSkin(TextField tf) {
super(tf);
System.out.println("MyTextFieldSkin constructor called!");
ReadOnlyObjectWrapper<Color> farbe = new ReadOnlyObjectWrapper<>(Color.green);
caretPath.strokeProperty().bind(farbe);
caretPath.setStrokeWidth(1.5);
}
}
… and is set in CSS like that:
.text-field {
-fx-skin: "gui.MyTextFieldSkin";
}
What am I doing wrong? I looked at the source code of AquaFX, and they are doing it the same way as me!
After a bit of try & error, I solved the problem in the following way:
I gathered all TextFields and controls that have TextFields in them (like ComboBox, DatePicker and so on) inside a container recursively (in deference of TitledPane, ScrollPane, SplitPane and TabPane, because they don't publish their children in getChildren(), so one has to call the getContent() method of the individual classes and scan through it).
After I had all the TextField controls, I looped over them and changed their Skin with the following code:
public class MyTextFieldSkin extends TextFieldSkin {
public MyTextFieldSkin(TextField tf)
{
super(tf);
ReadOnlyObjectWrapper<Color> color = new ReadOnlyObjectWrapper<>(Color.RED);
caretPath.strokeProperty().bind(color);
}
}
Then I just had to call
textfield.setSkin(new MyTextFieldSkin(textfield));
and that was about it.
Cheers
I have a TextField styled by changing styleClass when its value is valid/invalid but there is a great problem. When the value becomes valid I still should change the TextField once more to make the styleClass be applied. I tried with applyCss() method just after, but it didn't work :(.
if(!valid){
field.getStyleClass().add("invalid-field");//Works excellent
} else {
field.getStyleClass().remove("invalid-field");//Doesn't work up to the time textProperty doesn't change once again
field.applyCss();
One common cause of these bugs is that you may have added the "invalid-field" style class more than once. (Remember, getStyleClass() returns a List<String>, not a Set<String>.) So you should probably take steps to make sure the style class is only added once, or take steps to remove all occurrences when you remove it.
I like to do both (where I come from, we call this a "belt and braces approach").
ObservableList<String> styleClasses = field.getStyleClass();
if(!valid)
if( ! styleClass.contains("invalid-field")){
styleClass.add("invalid-field");
}
} else {
// remove all occurrences:
styleClass.removeAll(Collections.singleton("invalid-field"));
}
Is there a html helper that can crop text (say, for an actionlink) so that it fits into a table column without wrapping? I remember reading about a helper that crops and then adds ... to the end, but cannot find it again. Otherwise, I will just make my own helper.
No there isn't. There is an example of one in the ASP.NET MVC Music Store tutorials which is where you may have seen it.
Copied from the tutorial:
public static stringTruncate(this HtmlHelperhelper,string input,int length)
{
if(input.Length <= length)
{
returninput;
}
else
{
returninput.Substring(0, length) +"...";
}
}
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. Can anyone out there help simplify for me how I would write a function like this:
public function HowWideWouldThisTextBeIfItWereInThisButton(Text:String,Container:Button):int {
...
}
Thanks in advance.
So long as you're in a UIComponent, you can use the measureText function.
public function howWideWouldThisTextBeIfItWereInThisButton(text:String,container:Button):int {
var lineMetrics:TextLineMetrics = container.measureText(text);
return lineMetrics.width;
}
That being said, the flex button component should automatically size to the width of the text, if you don't set a width on it. That way if you need the text width, you can just call use the textWidth property.
This works any format, size, font type. Don't forget properties "autoSize" and "wordWrap"!
var tf:TextField = new TextField();
addChild(tf);
tf.autoSize = TextFieldAutoSize.LEFT;
tf.wordWrap = false;
tf.text = "Whatever here";
tf.width = tf.textWidth + 4; // add 2 pixels-gutters left & right
Your button will need to be "tf.width" wide...
Here's how you do it in Spark:
I've modified - simplified - his example a bit here:
var textMetrics:TextLineMetrics = label.measureText( label.text );
var textWidth:int = textMetrics.width;
Here's a way that works also:
var tempText:Text = new Text();
tempText.regenerateStyleCache(false);
var textWidth:int = tempText.measureText(*yourstring*).width;
as I think, textField.textWidth construction works fine... until you change the font size.
It seems it calculates width based on 12px font.
So, if you have embedded font and global styling you can try fast solution:
var realWidth = myLabel.textField.textWidth * (fontSize / 12);
I've tried this on long and short strings and the result is correct.
Joshua, it really helps to be clear. Are you talking TextField, MX Label, Spark Label, RichText, etc? Different text components use different text engines, such as FTE and TLF and may have different solutions. I certainly wish Adobe had a good set of utilities or sample code which could predict what the size of font rendered onto the controls would be, before you actually do it. But, the good news is that in certain cases - like, a good old fashioned TextField, you can predict this pretty well. You just make a TextField, set it's textFormat field, auto size method and the text. You should be able to get it's size before adding it anywhere. I don't remember what the order was, but, I remember the order you set those properties matters. If you can't figure out how to do it, I can provide a code example. Now, for the new, "improved", components such as Spark Labels - I'll be buggered if I can find a damn way... spent a number of hours on this and haven't found a way.. or someone who knows a way :P.
Following up my comment on quoo's answer, here's the code for same purpose, but just grabbing the width out of a TextField, using TextLineMetrics as well:
public function mtxtWidth(container:TextField):int {
var lineMetrics:TextLineMetrics = container.getLineMetrics(0);
return lineMetrics.width;
}
Sounds like you could use textWidth
I embed SVG graphics in my Flex application using
package MyUI
{
public class Assets
{
[Embed(source="/assets/pic.svg"]
[Bindable]
public static var svgPic:Class;
}
}
and then extending the Tree class with some of my own code, setting the icon upon adding a node to the data provider:
public class MyTree extends Tree
{
public function MyTree()
{
// ...
this.iconField = "svgIcon";
// ...
this.dataProvider = new ArrayCollection;
this.dataProvider.addItem({ /* ... */ svgIcon: MyUI.Assets.svgPic /* ... */ });
// ...
}
}
Now I have two things I want to do:
use the SVG graphics in multiple places in the app, scaling them to the appropriate size for each appearance, i. e. scale them to a proper icon size when using them in the tree
change the size of the icon at runtime, e. g. display a slightly larger icon for selected items or let an icon "pulse" as a response to some event
I read the Flex documentation on the 9-slice scaling properties in the Embed tag, but I think that's not what I want.
Edit:
I unsuccessfully checked the "similar questions" suggested by SO, among others this one:
Flex: Modify an embedded icon and use it in a button?
Subclass mx.controls.treeClasses.TreeItemRenderer and make it resize the icon to your desired dimensions, or create your own item renderer implementation by using the same interfaces as TreeItemRenderer. Set a custom item renderer with the itemRenderer property:
exampleTree.itemRenderer = new ClassFactory( ExampleCustomItemRendererClass );
The answer to this question might point you in the right direction, without knowing more about the trouble you're having:
Flex: Modify an embedded icon and use it in a button?
Hope it helps!