How to have the blue underline to appear at the TOP of the text (Tab name) instead of the bottom?
I am using Vaadin 14
Create file frontend/styles/tab-theme.css with content
:host::before,
:host::after {
top: 0;
}
Import it in your view with #CssImport(value = "./styles/tab-theme.css", themeFor = "vaadin-tab"), for example:
#Route
#CssImport(value = "./styles/tab-theme.css", themeFor = "vaadin-tab")
public class MainView extends VerticalLayout {
public MainView() {
Tabs tabs = new Tabs();
tabs.add(new Tab("Tab1"));
tabs.add(new Tab("Tab2"));
tabs.add(new Tab("Tab3"));
add(tabs);
}
}
and that's it.
Tested with Vaadin 14.2.1
Related
I have a large winform application which we working to modify the appearance. I am replacing System.Windows.Forms.Toolbar to System.Windows.Forms.ToolStrip control. I use a custom renderer to change dropdown arrow color. with default renderer i get mouse hover effects in toolstrip but with my custom rendering it dont seem to work. Here's my code.
Tool strip initialization:I removed unnecessary code for reading comfort
this.toolStrip1 = new System.Windows.Forms.ToolStrip();
this.imageList1 = new System.Windows.Forms.ImageList(this.components);
this.toolStripDropDownButton1 = new System.Windows.Forms.ToolStripDropDownButton();
this.toolStrip1.ImageList = this.imageList1;
this.toolStrip1.ImageScalingSize = new System.Drawing.Size(55, 32);
this.toolStrip1.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
this.toolStripDropDownButton1
});
this.toolStrip1.Renderer = new MyRenderer();
Toolstrip dropdown button:
this.toolStripDropDownButton1.DisplayStyle = System.Windows.Forms.ToolStripItemDisplayStyle.Image;
this.toolStripDropDownButton1.ImageIndex = 0;
this.toolStripDropDownButton1.Name = "toolStripDropDownButton1";
CustomRenderer
public class MyRenderer : ToolStripRenderer
{
protected override void OnRenderArrow(ToolStripArrowRenderEventArgs e)
{
e.ArrowColor = Color.White;
base.OnRenderArrow(e);
}
}
thanks to #LarsTech for his help. I found this working. I made this below modification in renderer and in code.
Added this line in initialization
this.Toolstip1.RenderMode = ToolStripRenderMode.Professional;
CustomRenderer
public class MyRenderer : ToolStripProfessionalRenderer //Professional renderer
{
protected override void OnRenderArrow(ToolStripArrowRenderEventArgs e)
{
e.ArrowColor = Color.White;
base.OnRenderArrow(e);
}
}
I am trying to implement a menu. This is my code :
Menu menuFile1 = new Menu("ADD");
Menu menuFile2 = new Menu("EDIT");
Menu menuFile3 = new Menu("VIEW");
Menu menuFile4 = new Menu("HELP");
How can I put some space between each menu (that is between ADD,EDIT,VIEW and HELP) ?
Answer
Space around menus is controlled by padding (see the Region css guide).
For example:
menu.setStyle("-fx-padding: 5 10 8 10;");
sets the padding around the menu to 5 pixels on the top, 10 pixels on the right, 8 pixels on the bottom and 10 pixels on the left.
Sample
The following is a bit overcomplicated for a code sample to demonstrate this effect, but you could run it to see the effect of varying padding values.
import javafx.application.Application;
import javafx.beans.binding.Bindings;
import javafx.beans.binding.StringExpression;
import javafx.geometry.Insets;
import javafx.scene.Scene;
import javafx.scene.control.*;
import javafx.scene.layout.Priority;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;
public class SpacedOut extends Application {
#Override
public void start(final Stage stage) {
MenuBar menuBar = createMenuBar();
VBox controlPane = createControlPane(menuBar);
VBox layout = new VBox(10,
menuBar,
controlPane
);
VBox.setVgrow(controlPane, Priority.ALWAYS);
stage.setScene(new Scene(layout, 400, 200));
stage.show();
}
private MenuBar createMenuBar() {
MenuBar menuBar = new MenuBar();
menuBar.getMenus().addAll(
new Menu("ADD"),
new Menu("EDIT"),
new Menu("VIEW"),
new Menu("HELP")
);
return menuBar;
}
private VBox createControlPane(MenuBar menuBar) {
CheckBox useCustomPadding = new CheckBox("Use Custom Padding");
useCustomPadding.setSelected(false);
Slider padAmount = new Slider(0, 30, 15);
padAmount.setShowTickMarks(true);
padAmount.setShowTickLabels(true);
padAmount.setMajorTickUnit(10);
padAmount.setMaxWidth(200);
padAmount.disableProperty().bind(
useCustomPadding.selectedProperty().not()
);
VBox contentPane = new VBox(10,
useCustomPadding,
padAmount
);
contentPane.setPadding(new Insets(10));
StringExpression paddingExpression = Bindings.concat(
"-fx-padding: ", padAmount.valueProperty(), "px;"
);
menuBar.getMenus().forEach(
menu -> menu.styleProperty().bind(
Bindings
.when(useCustomPadding.selectedProperty())
.then(paddingExpression)
.otherwise("")
)
);
return contentPane;
}
public static void main(String[] args) {
launch(args);
}
}
With the setStyle() Method you can pass one or more css styles in one string.
Like menuFile1.setStyle("-fx-border-color: red; -fx-effect: dropshadow( one-pass-box , red , 10,0.5,0,0 );");
Alternatively you could put your style information inside a css file and add it to the Scene through.
Scene somescene = new Scene(root)
somescene.getStylesheets().add("your.css");
See the css reference of Java FX 2 or this tutorial.
So I have a TextArea and as the user pastes paragraphs into it, or just writes in it, I want it to expand vertically to reveal all the available text. I.e. not to use a scrollbar in the text field itself... much like what happens on many web pages. Many users, myself included, don't like to be forced to edit in a small window. Exactly how Facebook status updates box works.
I've tried
myTextArea.autoSize()
wrapped in an
myTextArea.textProperty().addListener(new ChangeListener()....);
but that doesn't work. I think it's happy autosizing to its current size.
The left, right & top anchors are set to it's parent AnchorPane. I've tried it with the bottom attached and not attached. Ideally I'd like to grow the anchor pane as the textarea grows.
I don't mind reading the TextProperty and calculating a trigger size which I set myself... but this seems a hacky approach IF there is already a best practise. The number of properties and sub objects of javafx is sufficiently daunting that it seems like a good point to ask the question here, rather than trying to figure out how many pixels the font/paragraphs etc are taking up.
Update:
So I thought maybe I was overthinking it, and all I needed to do was to switch the scrollbars off and the rest would happen. Alas, looking for available fields and methods for "scroll", "vertical", "vbar" comes up with nothing I can use. ScrollTopProperty looks like it's for something else.
The problem; the height of textArea is wanted to be grown or shrunk while its text is changing by either user's typing or copy-pasting. Here is another approach:
public class TextAreaDemo extends Application {
private Text textHolder = new Text();
private double oldHeight = 0;
#Override
public void start(Stage primaryStage) {
final TextArea textArea = new TextArea();
textArea.setPrefSize(200, 40);
textArea.setWrapText(true);
textHolder.textProperty().bind(textArea.textProperty());
textHolder.layoutBoundsProperty().addListener(new ChangeListener<Bounds>() {
#Override
public void changed(ObservableValue<? extends Bounds> observable, Bounds oldValue, Bounds newValue) {
if (oldHeight != newValue.getHeight()) {
System.out.println("newValue = " + newValue.getHeight());
oldHeight = newValue.getHeight();
textArea.setPrefHeight(textHolder.getLayoutBounds().getHeight() + 20); // +20 is for paddings
}
}
});
Group root = new Group(textArea);
Scene scene = new Scene(root, 300, 250);
primaryStage.setScene(scene);
primaryStage.show();
// See the explanation below of the following line.
// textHolder.setWrappingWidth(textArea.getWidth() - 10); // -10 for left-right padding. Exact value can be obtained from caspian.css
}
public static void main(String[] args) {
launch(args);
}
}
But it has a drawback; the textarea's height is changing only if there are line breaks (ie Enter keys) between multiple lines, if the user types long enough the text gets wrapped to multiple line but the height is not changing.
To workaround this drawback I added this line
textHolder.setWrappingWidth(textArea.getWidth() - 10);
after primaryStage.show();. It works well for long typings where user does not linebreaks. However this generates another problem. This problem occurs when the user is deleting the text by hitting "backspace". The problem occurs exactly when the textHolder height is changed and where the textArea's height is set to new value. IMO it maybe a bug, didn't observe deeper.
In both case the copy-pasting is handling properly.
Awaiting a better, i use this hacky solution.
lookup the vertical scrollbar of the textarea.
make it transparent
listen to its visible property
when the scrollbar become visible i add a row to the textarea.
The code:
import javafx.application.Application;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.collections.ObservableList;
import javafx.geometry.Orientation;
import javafx.scene.Node;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.control.ScrollBar;
import javafx.scene.control.TextArea;
import javafx.scene.layout.AnchorPane;
import javafx.stage.Stage;
public class GrowGrowTextArea extends Application {
public static void main(String[] args) {
launch(args);
}
#Override
public void start(Stage primaryStage) throws Exception {
AnchorPane root = new AnchorPane();
root.setStyle("-fx-padding:20;-fx-background-color:dodgerblue;");
final TextArea textArea = new TextArea();
AnchorPane.setTopAnchor(textArea, 10.0);
AnchorPane.setLeftAnchor(textArea, 10.0);
AnchorPane.setRightAnchor(textArea, 10.0);
root.getChildren().add(textArea);
primaryStage.setScene(new Scene(root, 400, 300));
primaryStage.show();
ScrollBar scrollBar = lookupVerticalScrollBar(textArea);
scrollBar.setOpacity(0.0);
scrollBar.visibleProperty().addListener(new ChangeListener<Boolean>() {
#Override
public void changed(ObservableValue<? extends Boolean> source,
Boolean wasVisible,
Boolean isVisible) {
if (isVisible) {
textArea.setPrefRowCount(textArea.getPrefRowCount() + 1);
textArea.requestLayout();
}
}
});
}
private ScrollBar lookupVerticalScrollBar(Node node) {
if (node instanceof ScrollBar && ((ScrollBar)node).getOrientation() == Orientation.VERTICAL) {
return (ScrollBar) node;
}
if (node instanceof Parent) {
ObservableList<Node> children = ((Parent) node).getChildrenUnmodifiable();
for (Node child : children) {
ScrollBar scrollBar = lookupVerticalScrollBar(child);
if (scrollBar != null) {
return scrollBar;
}
}
}
return null;
}
}
I had a similar problem with creating expanding TextArea. I was creating TextArea that looks like TextField and expand vertically every time when there is no more space in line.
I have tested all solutions that I could find on this topic on stack and other sources available. I found few good solutions but neither was good enough.
After many hours of fighting, I figured out this approach.
I extended TextArea class, override layoutChildren() method and add a listener on text height.
#Override
protected void layoutChildren() {
super.layoutChildren();
setWrapText(true);
addListenerToTextHeight();
}
private void addListenerToTextHeight() {
ScrollPane scrollPane = (ScrollPane) lookup(".scroll-pane");
scrollPane.setHbarPolicy(ScrollBarPolicy.NEVER);
scrollPane.setVbarPolicy(ScrollBarPolicy.NEVER);
StackPane viewport = (StackPane) scrollPane.lookup(".viewport");
Region content = (Region) viewport.lookup(".content");
Text text = (Text) content.lookup(".text");
text.textProperty().addListener(textHeightListener(text));
}
private InvalidationListener textHeightListener(Text text) {
return (property) -> {
// + 1 for little margin
double textHeight = text.getBoundsInLocal().getHeight() + 1;
//To prevent that our TextArena will be smaller than our TextField
//I used DEFAULT_HEIGHT = 18.0
if (textHeight < DEFAULT_HEIGHT) {
textHeight = DEFAULT_HEIGHT;
}
setMinHeight(textHeight);
setPrefHeight(textHeight);
setMaxHeight(textHeight);
};
}
I used some of the code found in the previous answers.
The growTextAreaIfNecessary method will increase the height of textArea until the scrollbar is not visible (limited to 20 lines in this example).
The problem with this approach is that the window needs to be redrawn several times until the perfect height is found.
private ScrollBar lookupVerticalScrollBar(Node node) {
if (node instanceof ScrollBar && ((ScrollBar) node).getOrientation() == Orientation.VERTICAL) {
return (ScrollBar) node;
}
if (node instanceof Parent) {
ObservableList<Node> children = ((Parent) node).getChildrenUnmodifiable();
for (Node child : children) {
ScrollBar scrollBar = lookupVerticalScrollBar(child);
if (scrollBar != null) {
return scrollBar;
}
}
}
return null;
}
private void growTextAreaIfNecessary(TextArea textArea) {
Platform.runLater(() -> {
ScrollBar lookupVerticalScrollBar = lookupVerticalScrollBar(textArea);
int prefRowCount = textArea.getPrefRowCount();
if (lookupVerticalScrollBar.isVisible() && prefRowCount < 20) {
textArea.setPrefRowCount(prefRowCount + 1);
System.out.println("increasing height to: " + (prefRowCount + 1));
growTextAreaIfNecessary(textArea);
}
});
}
I have tried many hacks, most of them had jitters while typing, this to me was the perfect result:
textArea.textProperty().addListener((obs,old,niu)->{
Text t = new Text(old+niu);
t.setFont(textArea.getFont());
StackPane pane = new StackPane(t);
pane.layout();
double height = t.getLayoutBounds().getHeight();
double padding = 20 ;
textArea.setMinHeight(height+padding);
});
I want to use a DialogViewController inside of a UITabViewController.
Problem: Nested elements don't show a navigation bar, and so it is not possible to go back.
When I push my class (inherited from DialogViewController) to a UINavigationController, then the behavior is correct. If I use the same class in a tab of a UITabViewController (even with an underlying UINavigationController), then the behaviour is wrong.
Can anyone help me out?
Although the question is not assisted with some code sample, I made a small example hoping to solve your question. For this example I used the Tabbed Application template which comes with Xamarin.iOS and named it TabbingTest.
The following code goes in the AppDelegate. Change the FinishedLaunching method to contain:
public override bool FinishedLaunching (UIApplication app, NSDictionary options)
{
window = new UIWindow (UIScreen.MainScreen.Bounds);
var viewControllers = new UIViewController[]
{
CreateTabFor("Test", "first", new TestDialogController ()),
CreateTabFor("Second", "second", new SecondViewController ()),
};
tabBarController = new UITabBarController ();
tabBarController.ViewControllers = viewControllers;
tabBarController.SelectedViewController = tabBarController.ViewControllers[0];
window.RootViewController = tabBarController;
window.MakeKeyAndVisible ();
return true;
}
Then add the following methods:
private int _createdSoFarCount = 0;
private UIViewController CreateTabFor(string title, string imageName, UIViewController view)
{
var controller = new UINavigationController();
controller.NavigationBar.TintColor = UIColor.Black;
var screen = view;
SetTitleAndTabBarItem(screen, title, imageName);
controller.PushViewController(screen, false);
return controller;
}
private void SetTitleAndTabBarItem(UIViewController screen, string title, string imageName)
{
screen.Title = NSBundle.MainBundle.LocalizedString (title, title);
screen.TabBarItem = new UITabBarItem(title, UIImage.FromBundle(imageName),
_createdSoFarCount);
_createdSoFarCount++;
}
Create a class named TestDialogController and paste the following code inside.
using System;
using MonoTouch.Dialog;
using MonoTouch.UIKit;
namespace TabbingTest
{
public class TestDialogController : DialogViewController
{
public TestDialogController (): base(UITableViewStyle.Plain,null,false)
{
var root = new RootElement ("Tabbing test"){
new Section (){
new RootElement ("First level", 0, 0) {
new Section (null, "This is the first level."){
new RootElement ("Second level", 0, 0) {
new Section (null, "This is the second level."){
new BooleanElement ("Flipflops", false)
}
}
}
}}
};
this.Root = root;
}
}
}
Now run the application.
You can see that even the nested elements show up nicely in the navigation bar. Even with multilevel nesting.
I am creating an iPad app using MonoTouch 2.10.11 and I want to MonoTouch.Dialog to create some of the editable fields on a form. One of the fields will use a RadioGroup to allow the user to select from a list of options. The default behavior of M.T.D is display the selection list table over the existing table. This works great for the iPhone layout, but on this iPad form, the table is only on a small area of the form and the navigation bar looks odd on the middle of the form. I want to display the selection as a full screen modal and the user will hit a "back" button to go back the previous form with the selected item.
I created a new RootElement descendant class like this:
public class ModalRootElement : RootElement
{
public override void Selected (DialogViewController dvc, UITableView tableView, NSIndexPath path)
{
tableView.DeselectRow (path, false);
UIViewController uIViewController = this.MakeViewController ();
this.PrepareDialogViewController (uIViewController);
dvc.PresentViewController (uIViewController, true, null);
}
protected override void PrepareDialogViewController(UIViewController dvc)
{
base.PrepareDialogViewController(dvc);
UIButton button = UIButton.FromType (UIButtonType.RoundedRect);
button.Frame = new RectangleF (5, 5, 80, 20);
button.SetTitle ("back", UIControlState.Normal);
button.TouchUpInside += delegate {
DialogViewController d = dvc as DialogViewController;
(d.Root as ModalRootElement).TableView.ReloadData ();
d.DeactivateController(true);
};
dvc.View.AddSubview (button);
}
}
The table is implemented with the following code:
var _status = new ModalRootElement("Status", new RadioGroup("status", -1)) {
(new Section() {
new RadioElement("New", "status"),
new RadioElement("In process", "status"),
new RadioElement("Rejected", "status"),
new RadioElement("Deferred", "status"),
new RadioElement("Transferred", "status"),
new RadioElement("Unknown", "status"),
new RadioElement("Complete", "status")
})
};
var _odom = new EntryElement ("Odometer", "current odom", "");
_odom.KeyboardType = UIKeyboardType.DecimalPad;
_odom.TextAlignment = UITextAlignment.Right;
var root = new RootElement ("back") {
new Section("") {
_status,
_odom
}
};
_dvc = new DialogViewController(root);
_nav = new UINavigationController (_dvc);
_nav.SetNavigationBarHidden (true, false);
When I run the app, I can drill into the RadioGroup and make a selection. When I click the back button that I added to the view, the modal view closes and the RadioSelected properted of the ModalRootElement object is set correctly, but the text is not displayed.
If I change Selected() method to call dvc.ActivateController instead of PresentViewController, the ModalRootElement displays the correct text, but the RadioGroup table has the wrong size. Is there a way to get the RootElement to display the correct text when you use PresentViewController instead of ActivateController?
I think you need a Root.Reload() call.