JavaFX: Can not set -fx-background-image from SceneBuilder - java

Could someone explain why I can't load image from field -fx-background-image inside SceneBuilder?
Images for reference:
SceneBuilder
application
I've found out that I can do that from a .css file, for example:
#base {
-fx-background-image: url("background.jpg");
-fx-background-size: 100% 100%;
-fx-background-position: center center;
}
But that doesn't update from inside SceneBuilder, while I would like it too.

You need to attach the style sheet to the fxml element for it to be applied to the FXML viewed in the SceneBuilder design view.
There is a stylesheet field in the SceneBuilder property sheet view (it is actually in the image from your question). Select the root element and click the + symbol to select the CSS style sheet to apply. The style sheet will be applied to the root and all child elements.
Or you can use Preview | Scene Style Sheets | Add Style Sheet... to apply style sheets when you use the preview view.
You don't need to (and probably should not) set the style attribute in Scene Builder if you have a CSS file. The styles will be applied from the CSS files according to their selectors. Instead sets ids and style classes in scene builder and attach the stylesheet.
Your id is base, so if the id of the node is set to base, the selector will find it. I prefer working with style classes rather than ids but ids will work too.
You are referencing the image directly by name without relative path usage. So, as long as the image is in the same location as the fxml file and the style sheet is correctly applied as outlined above, the image defined in CSS should display in SceneBuilder.
I think that SceneBuilder automatically monitors the file system for changes, so if you change the FXML or CSS file externally, it will automatically reload them (notifying you of some, but not all, errors that may occur on reload).
If things still aren't working, see the Eden guide on where to put resources in JavaFX apps and try following their recommended approach (you might already be doing that, so locating the image might not be your issue).

Related

JavaFX ControlsFx adding custom CSS (Notification)

I am using the controlsfx library, particularly it's Notifications component, however it's default CSS styling doesn't fit my applications style at all, so I'm trying to change it.
I tried using the solution provided in this post
Is there a way to change the built-in controlfx notification popup color?
So:
String css = this.getClass().getResource("notificationpopup.css").toExternalForm();
primaryStage.getScene().getStylesheets().add(css);
Notifications.create().owner(primaryStage).(...).show();
The CSS file is being successfully loaded, there are also no errors with adding it to the styleSheets, the style of the notification remains, however, the same. I have tried loading both a whole file identical, except my changes, to the one used in the library and short css file only with what I wanted to change
My css file changes, for reference:
.notification-pane .notification-bar > .pane {
-fx-background-color: linear-gradient(to top, #3e5151, #decba4);
-fx-padding: 0 7 0 7;
}
(for now I'm just trying to change the background to a gradient of my choice)
I have also, without success tried to implement advice from questions related to other controlsfx elements, that is to add the url to styleSheeT AFTER invoking show.
(I have also tried, just to check things out, brute changing the css inside the library jar, but somehow that also failed to work, as in the css remained the same, without any errors, even though I have modified the jar and added it again).
Since the explanation provided was very scarce, I am at a loss, as to what is wrong here.
Also in my solution I have to avoid invoking .owner() and assigning the notification to a particular stage, since then it shows up inside that stage, not on the screen outside it. Maybe that can be fixed by adding the stylesheet to some other element, not primaryStage? But for now I can't achieve any css change even when confining the notification to a stage
Kinda late to answer this. But if someone having this issue, you can fix it using those two methods.
Method 01
The issue might happen because you are using multiple stylesheets for your scene. Add your notificationpopup.css css to the begining of the arraylist. I dont have hard proofs how that fix the issue. But I think that happens because of the ordering of the stylesheets. (The overriding stylesheet should be placed after the original stylesheet inside the stylesheets arraylist. There cannot be other stylesheet(s) in between them.)
String css = this.getClass().getResource("notificationpopup.css").toExternalForm();
primaryStage.getScene().getStylesheets().add(0, css);
Method 02
Put !important to css class attributes. For ex:
.notification-bar > .pane {
-fx-background-color: red !important;
-fx-padding: 10 10 10 10 !important;
}
Two possible solutions to change the css styling for a component
In your controller class, invoke the getStyle() method as such
node.getStyle("-fx-background-color: linear-gradient(to top, #3e5151, #decba4);-fx-padding: 0 7 0 7;");
with the same code you would have in your css file on that node to style it directly and override the css values.
or
Give the node a unique CSS ID in your code or fxml file by saying
node.setId("myID");
and then in your css file writing whatever you need for that tag like
#myID {
-fx-background-color: red;
}

Label as a Custom Button in JavaFX? (By using FXML)

I have a FXML document containing the visual basis of my JavaFX project and I want to make an own Topbar (where the X, minumum/maximum, etc... is) by using a Pane. But my program will have multiply pages (scenes) and to keep the code clean, I wanted to make the Custom-Topbar as a separate class (an component object kinda). I just don't know how I should implement this class into the FXML basis I use (I am using Scene Builder).
Option 1
If the toolbar is always there you can have a main fxml file with the toolbar and a container.
Then load content from other fxmls and place that content in the container. To switch pages switch the content of the container (and not the scene).
Option 2
Create an fxml file with just the toolbar. Then use the <fx: include /> tag in your other fxmls to include the toolbar. This is like a "component".
Edit: This is how option 2 can work in practice.
Say toolbar.fxml is the name of the fxml file containing only the toolbar.
Simply include <fx:include source="toolbar.fxml"/> in an other fxml file to incldue the toolbar at that location. See here for more information.

How to modify the ChoiceBox checkmark in JavaFX?

First of all, is it even possible to modify the ChoiceBox checkmark shape? Completely altering the CheckBox mark was easy enough using the CSS class (.check-box:selected .mark). However, all that I've found online for the ChoiceBox's ContextMenu's mark is that you can modify its color using -fx-mark-color within the .context-menu CSS class. I've tried several classnames to change the shape to a custom SVG to no avail.
.context-menu .menu-item:selected .mark {
-fx-shape: "M1,1 h4 v4 h-4 v-4 Z";
}
In the following picture I've completely reskinned my JavaFX application to match Mac's native Cocoa GUI, but the menu checkmark is the only flaw that appears to be impossible to fix.
Search the modena.css stylesheet for -fx-shape. For Java 8, You will find:
.check-menu-item:checked > .left-container > .check
This is the CSS selector for checkmarks inside menu items (it also covers checks for selected items in a ChoiceBox). Define the same CSS selection path in a custom CSS stylesheet. Inside that selector, place a -fx-shape rule that defines a custom svg path for the shape you wish to use for checks.

How to set default Region padding?

All my buttons and things are too close to their boundaries so I am trying to set the default padding of Region. I found this link which describes to me the style to use, -fx-padding. I want to set this as the global instead of setting it for every single thing I make. I tried to make this css file and add it to my scene, but it didn't seem to work:
.region{
-fx-padding: 5px
}
Setting it in code:
getDerbyDisplayStage().getScene().getStylesheets().add("com/neonorb/derbypro/ui/gui/Style.css");
I didn't get any error message in the console (which does exist if I change the path).
Could there be some order of doing this? Do I have to set the style sheet before I add components and things? If this is the case, I would have to separate the scene making from the components as I am using FXML to create my Stage, Scene, and components.

JavaFX8 -fx-background-image doesn't work

I want to set background image of root-pane. For this purpose, I add this inline style to root-pane.
-fx-background-image: url("image.png");
Image is in same directory as FXML file. I checked path at least 10 times.
Can somebody say, what's wrong?
Don't use inline style for fxml. There is a discussion here :https://community.oracle.com/thread/2595120?start=0&tstart=0
Please pay attention James_D's answer.
By the way, if you use external css file, your code will work. Please try 'styleclass' property in root tag.

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